US20100327015A1 - Storage container - Google Patents
Storage container Download PDFInfo
- Publication number
- US20100327015A1 US20100327015A1 US12/801,473 US80147310A US2010327015A1 US 20100327015 A1 US20100327015 A1 US 20100327015A1 US 80147310 A US80147310 A US 80147310A US 2010327015 A1 US2010327015 A1 US 2010327015A1
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- US
- United States
- Prior art keywords
- storing portion
- tube
- shaped storing
- bag
- shaped
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
Links
- 238000003860 storage Methods 0.000 title claims abstract description 48
- 239000000126 substance Substances 0.000 claims abstract description 98
- 238000000605 extraction Methods 0.000 claims abstract description 91
- 239000011347 resin Substances 0.000 claims abstract description 16
- 229920005989 resin Polymers 0.000 claims abstract description 16
- 239000010409 thin film Substances 0.000 claims abstract description 8
- 230000007423 decrease Effects 0.000 claims description 11
- 238000003466 welding Methods 0.000 description 34
- -1 for example Substances 0.000 description 11
- 239000010408 film Substances 0.000 description 10
- 238000007789 sealing Methods 0.000 description 6
- 230000037303 wrinkles Effects 0.000 description 6
- 239000004698 Polyethylene Substances 0.000 description 5
- 238000005520 cutting process Methods 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 5
- 229920000573 polyethylene Polymers 0.000 description 5
- 239000004743 Polypropylene Substances 0.000 description 4
- 230000008859 change Effects 0.000 description 4
- 239000007788 liquid Substances 0.000 description 4
- 229920001155 polypropylene Polymers 0.000 description 4
- 230000001154 acute effect Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 230000007246 mechanism Effects 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 238000000465 moulding Methods 0.000 description 3
- 239000004793 Polystyrene Substances 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 239000012141 concentrate Substances 0.000 description 2
- 235000010746 mayonnaise Nutrition 0.000 description 2
- 239000008268 mayonnaise Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 229920002223 polystyrene Polymers 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 230000004323 axial length Effects 0.000 description 1
- 238000000071 blow moulding Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 239000005001 laminate film Substances 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 229920000915 polyvinyl chloride Polymers 0.000 description 1
- 239000004800 polyvinyl chloride Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D11/00—Containers having bodies formed by interconnecting or uniting two or more rigid, or substantially rigid, components made wholly or mainly of plastics material
- B65D11/02—Containers having bodies formed by interconnecting or uniting two or more rigid, or substantially rigid, components made wholly or mainly of plastics material of curved cross-section
- B65D11/04—Bottles or similar containers with necks or like restricted apertures designed for pouring contents
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41F—PRINTING MACHINES OR PRESSES
- B41F31/00—Inking arrangements or devices
- B41F31/02—Ducts, containers, supply or metering devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D83/00—Containers or packages with special means for dispensing contents
- B65D83/0055—Containers or packages provided with a flexible bag or a deformable membrane or diaphragm for expelling the contents
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D2231/00—Means for facilitating the complete expelling of the contents
- B65D2231/001—Means for facilitating the complete expelling of the contents the container being a bag
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D2231/00—Means for facilitating the complete expelling of the contents
- B65D2231/005—Means for facilitating the complete expelling of the contents the container being rigid
Definitions
- the present invention relates to a storage container for storing viscous liquids.
- a storage container which is capable of storing viscous liquids (hereinafter, referred to as stored substances) such as ink for printing.
- stored substances viscous liquids
- Such a storage container is installed in a predetermined position of an external apparatus such as a printer, and the stored substance is extracted with a suction mechanism provided in the external apparatus, and supplied to a predetermined position.
- 2001-199455 has a configuration provided with a container body formed in the shape of a bag made of a thin-film-shaped resin film, and a support member which is enclosed in the inside of the container body, retains the container body in the shape of a box, and has an extraction opening protruding from the container body.
- the thin-film-shaped resin film is inverted to roll inside the support member as the stored substance flows out. Then, when the stored substance is extracted completely, the resin film changes to a state of entering inside the support member.
- the aforementioned storage container has the structure that the support member is enclosed inside the container body formed of a resin film, the support member retains the container body in predetermined form, the manufacturing process is thereby complicated, and the cost is increased.
- the storage container has the structure that the surface of the support member and the container body are in intimate contact with each other widely, the adhesion therebetween tends to be insufficient such that the container body becomes wrinkled, the stored substance thereby remains in a gap (outer side of the support member) therebetween in sucking, and there is a possibility that the stored substance is wasted.
- the container body formed from the resin film has the structure in the shape of a box (with the bottom) in consideration of the shape retention property. However, in such a shape, even when the container body enters inside the support member in sucking, the adhesion with the inner surface of the support member deteriorates finally, and as a result, the stored substance tends to remain also on the inner surface side of the support member.
- a storage container enabling a stored substance to be extracted with minimum wastage while having inexpensive manufacturing cost.
- a storage container is provided with a tube-shaped storing portion formed of a resin having an extraction opening enabling a stored substance to be sucked in a center area on one end side, and a circular opening on the other end side, and a bag-shaped storing portion which is welded along the circular opening of the tube-shaped storing portion, enters inside the tube-shaped storing portion to be able to come into intimate contact with an inner surface of the tube-shaped storing portion in sucking through the extraction opening, and is formed of a thin film in the shape of a bag to be a non-independent body, where the tube-shaped storing portion changes in cross-sectional shape from a circular shape to an elliptical shape toward one end side from the other end side.
- the storage container with the aforementioned configuration has the structure that the bag-shaped storing portion formed in the shape of a bag that is a non-independent body is welded along the circular opening on the other end side of the tube-shaped storing portion formed of a resin having the extraction opening, thus has a simplified structure, while being manufactured with ease, and thereby enables reductions in cost.
- the bag-shaped storing portion is configured as a non-independent body (in a state where three sides, the side portions and bottom portion, are welded), the welding process is simplified, and the cost is, reduced.
- the bag-shaped storing portion is configured as a non-independent body, when the bag-shaped storing portion is welded along the circular opening of the tube-shaped storing portion, its cross-sectional shape is circular in the welding portion, and the cross section changes to an elliptical shape as separating from the welding portion (the bag-shaped storing portion enters inside the tube-shaped storing portion and comes into intimate contact with the inner surface in sucking from the extraction opening of the tube-shaped storing portion.)
- the tube-shaped storing portion is changed in cross-sectional shape from a circular shape to an elliptical shape toward the extraction opening side from the welding portion, and thus is adapted to the cross-sectional shape of the entering bag-shaped storing portion, the bag-shaped storing portion comes into intimate contact with the inner surface of the tube-shaped storing portion without causing wrinkles or the like, and it is possible to extract the stored substance with efficiency.
- the tube-shaped storing portion is configured such that the welding portion with the bag-shaped storing portion is circular, therefore, does not cause a crush or the like in sucking the stored substance, and further has the configuration that the basic shape changes from circular cross section to elliptical cross section, the entire inner surface is thus configured as a curved surface, and therefore, the stored substance is hard to remain in sucking the stored substance.
- a storage container is characterized by having a cylindrical storing portion formed of a resin in the shape of a cylinder having an extraction opening enabling a stored substance to be sucked in a center area on one end side, and a bag-shaped storing portion formed in the shape of a bag to be a non-independent body using a thin film that is welded along a circular opening on the other end side of the cylindrical storing portion and that enters inside the cylindrical storing portion to be able to come into intimate contact with an inner surface of the cylindrical storing portion in sucking from the extraction opening, where the bag-shaped storing portion has a length in the range of 90% to 110% relative to the storing length in the longitudinal direction of the cylindrical storing portion, and is cut in corner portions on the end portion side opposite to the welding portion.
- the storage container with the aforementioned configuration has the structure that the bag-shaped storing portion formed in the shape of a bag that is a non-independent body is welded along the circular opening on the other end side of the cylindrical storing portion formed of a resin having the extraction opening, thus has a simplified structure, while being manufactured with ease, and thereby enables reductions in cost. Further, the storage container is in the form of a cylinder in the basic portion, the stored substance is thereby hard to remain in sucking the stored substance, and with respect to the bag-shaped storing portion, since the corner portions are cut on the end portion side opposite to the welding portion in the non-independent body, the stored substance is hard to remain.
- the bag-shaped storing portion has the length in the range of 90% to 110% relative to the storing length in the longitudinal direction of the cylindrical storing portion, its bottom edge area can be located in the vicinity of the extraction opening portion when the bag-shaped storing portion is inverted and drawn into the inside of the cylindrical storing portion in sucking, and by this means, it is possible to extract the stored substance with efficiency.
- FIG. 1 is a perspective view showing a storage container according to Embodiment 1 of the invention.
- FIG. 2A is a front view of the storage container:
- FIG. 2B is a side elevational view of the storage container
- FIG. 3A is a cross-sectional view taken along the A-A line in FIG. 2A ;
- FIG. 3B is a cross-sectional view taken along the B-B line of FIG. 2B ;
- FIG. 3C is a cross-sectional view taken along the C-C line of FIG. 2B ;
- FIG. 4 is a diagram showing a configuration of a bag-shaped storing port ion (non-independent body) while showing the configuration that corner portions on the end portion side are not cut;
- FIGS. 5A to 5C are views showing a configuration of the bag-shaped storing portion as shown in FIG. 1 , and are views showing a configuration example of a cut portion in a corner portion on the end portion side;
- FIGS. 6A to 6F are views sequentially showing changes of the bag-shaped storing portion in storing a viscous stored substance in the storage container as shown in FIG. 1 and sucking the substance from an extraction opening;
- FIG. 7A is a perspective view of a blockage preventing member inserted in the extraction opening
- FIG. 7B is a front view of the blockage preventing member inserted in the extraction opening
- FIG. 7C is a plan view of the blockage preventing member inserted in the extraction opening
- FIG. 8 is a view showing a state where the blockage preventing member as shown in FIG. 7 is inserted in the extraction opening portion;
- FIG. 9A is a perspective view showing a storage container according to Embodiment 2 of the invention.
- FIG. 9B is a front view showing the storage container according to Embodiment 2 of the invention.
- FIG. 10A is a view showing a configuration of a cylindrical storing portion as shown in FIGS. 9A and 9B ;
- FIGS. 10B and 10C are views showing modification examples of the cylindrical storing portion
- FIG. 11 is a view showing a configuration of a bag-shaped storing portion without corner portions on the end portion side being cut;
- FIGS. 12A to 12C are views showing a configuration of the bag-shaped storing portion as shown in FIGS. 9A and 9B and showing an example of a cut state of corner portions on the end portion side;
- FIGS. 13A to 13F are views sequentially showing changes of the bag-shaped storing portion in storing a viscous stored substance in the storage container as shown in FIGS. 9A and 9B and sucking the substance from an extraction opening.
- a storage container 1 stores a viscous liquid (referred to as a stored substance) such as ink, and as described later, is provided with a tube-shaped storing portion 2 changing in cross-sectional shape from a circular shape (on the welding portion side) to an elliptical shape (on the extraction opening side), and a bag-shaped storing portion 3 welded along a lower circular opening of the tube-shaped storing portion 2 .
- a viscous liquid referred to as ink
- an extraction opening 2 a enabling a stored substance to be sucked is formed on the center axis on one end side.
- the extraction opening 2 a is formed from a plug with a screw, and by attaching and detaching a cap (sealing member) not shown, enables a stored substance to be sealed and extracted.
- the container 1 is inserted in a predetermined portion of an external apparatus with the sealing member removed, and the stored substance is extracted by a sucking mechanism such as a pump.
- the above-mentioned extraction opening 2 a may be not used only in extracting the stored substance, and also have the function as a filling opening to fill the stored substance. Further, the extraction opening may have a configuration that an extraction needle is inserted in the sealing member to suck the stored substance.
- the above-mentioned tube-shaped storing portion 2 is formed in one piece (blow molding, injection molding, etc.) of a plastic material such as, for example, polyethylene, polystyrene, polypropylene and polyvinyl chloride, and is configured by a method and material enabling its manufacturing with low cost. Further, the thickness is only required to be an extent (for example, about 0.8 mm to 2.0 mm) to which the shape is maintained when the bag-shaped storing portion 3 is inverted and drawn into the inside in sucking.
- a plastic material such as, for example, polyethylene, polystyrene, polypropylene and polyvinyl chloride
- the cross section changes in shape from a circular shape to an elliptical shape toward the extraction opening 2 a side from the welding portion 2 d with the bag-shaped storing portion 3 . This is because of adapting to the cross-sectional shape of the bag-shaped storing portion 3 entering inside the tube-shaped storing portion 2 in sucking the extraction opening portion to extract the stored substance.
- the bag-shaped storing portion 3 is configured as a non-independent body (three sides, side portions and bottom portion, are welded) that is easily manufactured, and therefore, when the portion 3 is welded along the circular opening of the tube-shaped storing portion 2 , the cross-sectional shape is circular in the welding portion 2 d, while changing to an elliptical shape as separating from the welding portion.
- the bag-shaped storing portion 3 comes into intimate contact with the inner surface of the tube-shaped storing portion without causing wrinkles or the like in inverting and entering inside the tube-shaped storing portion 2 , and it is possible to extract the stored substance from the extraction opening 2 a with efficiency.
- the change of the shape is not limited particularly, but it is preferable to gently change the shape continuously, rather than abruptly change from the circular shape to ellipticl shape. In other words, a configuration is preferable that a large step difference is not made between the shapes.
- the shape of the tube-shaped storing portion 2 is not limited particularly, and in this Embodiment, as shown in FIGS. 1 and 2 , in order that the stored substance can be extracted effectively, a curved portion 2 b is formed such that the diameter decreases gradually toward the extraction opening 2 a positioned on the center axis from the upper end side of the circular side wall. Then, it is preferable that radial protrusion portions 2 c (are arranged radially) are formed in the inner surface of the curved portion 2 b to extend toward the extraction opening 2 a.
- the radial protrusion portions 2 c constitute a flow path guide to enable the stored substance to effectively move toward the extraction opening 2 a in sucking, and can be integrally formed in molding.
- the specific extension length, pitch and height of the radial protrusion portions 2 c are capable of being modified as appropriate corresponding to dimensions of the tube-shaped storing portion 2 , type (viscosity) of the stored substance, etc.
- the portion 2 b is only required to adapt to cut portions described later formed in the bag-shaped storing portion 3 , and can be modified as appropriate.
- the shape can be modified as appropriate.
- the opening end portion of the bag-shaped storing portion 3 is welded to the opening end portion of the bag-shaped storing portion 3 .
- the circular opening is formed in the same diameter over a predetermined length L, and the bag-shaped storing portion 3 is welded to the outer surface of the area (within the range of the predetermined length L, and in this range, the welding portion 2 d is formed) in which the tube-shaped storing portion 2 has the same diameter.
- the welding portion 2 d may be in the range of about 5 mm to 15 mm, is covered with the opening area of the bag-shaped storing portion 3 , and then, welded using a heat bar or the like, and it is thereby possible to weld the bag-shaped storing portion 3 to the tube-shaped storing portion 2 with ease.
- a pair of protrusions 2 e protruding outward are formed at an interval of 180 degrees in the area where the bag-shaped storing portion is welded.
- the bag-shaped storing portion 3 is formed in the shape of a bag by welding the circumference of a thin-film-shaped film (thin film with a thickness ranging from about 0.05 mm to 0.15 mm, for example, a laminate film where a seal portion layer is polyethylene) having flexibility made of polyethylene, polypropylene or the like, and to reduce the cost, for example, is configured as a three-side seal bag such that two thin-film-shaped films are stacked and welded in the circumference.
- a thin-film-shaped film thin film with a thickness ranging from about 0.05 mm to 0.15 mm, for example, a laminate film where a seal portion layer is polyethylene
- flexibility made of polyethylene, polypropylene or the like
- the bag-shaped storing portion 3 in the invention has the structure (non-independent structure) where one end is opened to enable the portion 3 to be welded to the outer surface (welding portion 2 d ) of the circular opening portion of the tube-shaped storing portion 2 , while a bottom that is a plane is not formed on the other end (welding area 3 A is shown by oblique lines). Further, the bag-shaped storing portion 3 of this Embodiment is configured such that corner portions on the end portion side opposite to the welding portion 2 d are cut. More specifically, the shape of the side surface is not rectangular as shown in FIG. 4 , and as shown in FIG.
- an aspect of the cut between the bottom edge 3 a and side edge 3 b inside the storing portion is not limited particularly, and the cut may be made linearly so that the bottom edge 3 a is longer as shown in FIG. 5B or may be made so that the bottom edge 3 a is shorter as shown in FIG. 5C .
- the shape of the cut portion (edge-shape cut portion) 3 d is preferably formed in the shape in accordance with the curved portion 2 b formed in the tube-shaped storing portion 2 (edge shapes of the cut portions formed in the bag-shaped storing portion are almost adapted to a shape of the curved portion). More specifically, the shape as shown in FIG. 5B is preferably adapted to the tube-shaped storing portion such that the curved portion is a relatively gently surface as shown in FIG. 2 , and the shape as shown in FIG. 5C is preferably adapted to the tube-shaped storing portion such that the curved portion 2 b is a relatively longer surface along the longitudinal direction than that in the configuration as shown in FIG. 2 .
- the capacity of the bag-shaped storing portion 3 is preferably set at the same (including substantially the same) capacity of the tube-shaped storing portion 2 .
- the capacity of the bag-shaped storing portion 3 is smaller than that of the tube-shaped storing portion 2
- the distance between the bottom edge 3 a inside the bag-shaped storing portion and the opening 2 A on the storing portion side of the extraction opening 2 a increases, and by this means, as the internal pressure decreases by suction, the possibility increases that the stored substance existing in the area of the bottom edge 3 a does not undergo sufficient suction and remains.
- FIGS. 6A to 6F described next is a result of storing a viscous stored substance (commercially available mayonnaise) in the storage container with the configuration as shown in FIGS. 1 and 2 , and extracting the stored substance by applying a predetermined suction force.
- a viscous stored substance commercially available mayonnaise
- the bag-shaped storing portion 3 gradually shrinks while causing vertical wrinkles, and the bottom edge 3 a rises toward the circular opening (area of the welding portion 2 d ) of the tube-shaped storing portion 2 (see FIGS. 6B and 6C ).
- the bottom edge 3 a inside the storing portion passes through the circular opening (area of the welding portion 2 d ) of the tube-shaped storing portion 2 and rises with the flow of the stored substance, and the bag-shaped storing portion 3 is inverted and drawn into the inside space of the tube-shaped storing portion 2 (see FIGS. 6D and 6 E).
- the inner surface of the bag-shaped storing portion 3 comes into intimate contact with the inner surface of the tube-shaped storing portion 2 (see FIG. 6F ), and the stored substance concentrates on the opening area on the storing portion side of the extraction opening 2 .
- the bag-shaped storing portion 3 when the bag-shaped storing portion 3 is inverted and drawn into the inside space of the tube-shaped storing portion 2 , the inner surface of the bag-shaped storing portion 3 comes into intimate contact with the inner surface of the tube-shaped storing portion 2 .
- the cross-section shape changes from the circular shape to the elliptical shape toward the extraction opening side from the welding portion, and is adapted to the cross-sectional shape of the entering bag-shaped storing portion 3 , the bag-shaped storing portion 3 does not cause wrinkles or the like, and is easy to come into intimate contact with the inner surface of the tube-shaped storing portion 2 , and it is possible to extract the stored substance with efficiency.
- the circular opening is formed in the same diameter over the predetermined length L, and the bag-shaped storing portion 3 is welded to this range, when the bag-shaped storing portion 3 is inverted and enters in the welding portion area, wrinkles or the like are prevented from occurring in this portion, and the possibility decreases that the stored substance remains.
- the welding portion to the bag-shaped storing portion 3 is configured in circular form, any crush or the like does not occur in sucking the stored substance.
- the basic shape changes from the circular shape in cross section to the elliptical shape in cross section, and the entire inner surface is configured as a curved surface, the stored substance is hard to remain in sucking the stored substance.
- the bag-shaped storing portion 3 is hard to come into intimate contact when becoming wrinkled, and it is possible to suck (squeeze) the stored substance as much as possible. Meanwhile, when the inner surface of the bag-shaped storing portion 3 comes into intimate contact with the inner surface of the tube-shaped storing portion 2 , the suction force does not act on the bag-shaped storing portion 3 . However, since the curved shape is formed such that the diameter decreases gradually toward the extraction opening 2 a side, it is possible to extract the stored substance as much as possible even when the suction force reduces.
- the radial protrusion portions 2 c extending toward the extraction opening 2 a are formed in the inner surface of the curved portion 2 b, flow paths toward the extraction opening 2 a are easy to reserve, and it is possible to efficiently extract the stored substance.
- the bottom edge 3 a area can be positioned in the vicinity of the extraction opening portion, and by this means, it is possible to efficiently extract the stored substance even when the internal pressure decreases by suction.
- the bag-shaped storing portion 3 is a non-independent body, and is configured so that point portions with an acute angle do not exist in the bottom edge portion by cutting corner portions on the end portion side, and further, since the edge shape of the cut portion is formed to follow the curved portion of the tube-shaped storing portion 2 , it is possible to extract the stored substance efficiently without the substance remaining.
- the residual amount of the stored substance was 2.0% or less, and the result that the stored substance can be extracted efficiently was obtained.
- the storage container 1 as described above has the structure that the bag-shaped storing portion 3 formed in the shape of a bag to be a non-independent body is welded along the circular opening on the other end side of the tube-shaped storing portion 2 made of a resin having the extraction opening 2 a, the structure is simple and is easy to manufacture, and it is possible to obtain the configuration with the cost reduced, easy to recycle, and the like.
- FIG. 7 shows a blockage preventing member inserted in the extraction opening portion of the storage container 1 as described above, where FIG. 7A is a perspective view, FIG. 7B is a front view, and FIG. 7C is a plan view.
- the blockage preventing member 20 as shown in FIGS. 7A to 7C is inserted in the extraction opening portion as shown in FIG. 8 , and it is thereby possible to extract the stored substance more efficiently.
- the blockage preventing member 20 is formed in one piece using a resin or the like, is provided with a tube portion 21 inserted in the extraction opening 2 a, and fringe 22 coming into contact with a circumferential edge 2 a ′ of the extraction opening 2 a so as not to drop inside when being inserted in the extraction opening, and is configured to be detachable with respect to the extraction opening 2 .
- the tube portion 21 is provided with a substantially same axial length as the length in the axial direction of the extraction opening 2 a, and is configured so that the front end is positioned in the opening 2 A on the storing portion side of the extraction opening 2 a. Then, in the end face of the tube portion 21 is formed a plurality of cut grooves 21 a at predetermined intervals (in this Embodiment, four grooves substantially 90 degrees apart).
- Such cut grooves 21 a have the function of facilitating extraction of the stored substance remaining in the vicinity of the bottom edge 3 a (in the vicinity of the opening 2 A) of the bag-shaped storing portion 3 through the cut grooves 21 a, as shown in FIG. 8 , in a stage when the inner surface of the bag-shaped storing portion 3 comes into intimate contact with the tube-shaped storing portion 2 finally in the suction, and the suction force does not act on the bag-shaped storing portion 3 .
- blockage preventing member 20 may be configured to be detachable with respect to the extraction opening 2 as shown in the figure, or may be beforehand formed integrally in the extraction opening portion. Further, the length and thickness of the tube portion 21 , the number of formed cut grooves 21 a and the like are capable of being modified as appropriate.
- FIGS. 9 and 10 show a storage container according to Embodiment 2 of the invention.
- a storage container 101 stores a viscous liquid (referred to as a stored substance) such as ink, and is provided with a cylindrical (tube-shaped) storing portion 102 formed in the shape of a cylinder circular in cross section, and a bag-shaped storing portion 103 welded along a lower circular opening of the cylindrical storing portion 102 .
- the storage container 101 is formed in the shape of a circle in cross section over the longitudinal direction, and does not change the cross-sectional shape unlike Embodiment 1.
- an extraction opening 102 a enabling a stored substance to be sucked is formed on the center axis on one end side, and a sealing member (not shown) such as a cap is attached to the extraction opening 102 a and seals the stored substance. Then, in actual use, the container 1 is inserted in a predetermined portion of an external apparatus with the, sealing member removed, and the stored substance is extracted by a sucking mechanism such as a pump.
- the extraction opening may have a configuration that an extraction needle is inserted in the sealing member to suck the stored substance.
- the cylindrical storing portion 102 is formed in one piece (resin molding) of a plastic material such as, for example, polyethylene, polystyrene and polypropylene, and the thickness thereof is only required to be an extent (for example, about 0.3 mm to 1.8 mm) to which the cylindrical shape is maintained when the bag-shaped storing portion 103 is inverted and drawn into the inside in sucking.
- a plastic material such as, for example, polyethylene, polystyrene and polypropylene
- the outside shape is not limited particularly, and in this Embodiment, as shown in FIGS. 9 and 10A , a curved portion 102 b is formed such that the diameter gradually decreases in the shape of a funnel toward the extraction opening 102 a positioned on the center axis from the upper end side of the circumferential side wall. Then, it is preferable that radial protrusion portions 102 c are formed in the inner surface of the curved portion 102 b to extend toward the extraction opening 102 a.
- the radial protrusion portions 102 c constitute a flow path guide to enable the stored substance to effectively move toward the extraction opening 102 a in sucking, and can be integrally formed in molding.
- the specific extension length, pitch and height of the radial protrusion portions 102 c are capable of being modified as appropriate corresponding to dimensions of the cylindrical storing portion 102 , type (viscosity) of the stored substance, etc.
- the portion may have a gentle surface 102 b ′ changing to the extraction opening 102 a from the circular side wall, or as shown in FIG. 10C , may have a flat surface 102 b ′′ (surface with a substantially right angle) changing to the extraction opening 102 a from the side wall without forming the curved portion.
- the shape can be modified as appropriate, and further, may be formed of an acuter tapered curved surface than the curved surface of FIG. 10A .
- a welding portion 102 d is formed on the lower end side of the cylindrical storing portion 102 to facilitate welding of the opening end portion of the bag-shaped storing portion 103 .
- the welding portion 102 d has a predetermined length L 2 (about 5 mm to 15 mm) in the longitudinal direction.
- the portion 102 d may be formed of a circular surface with a diameter smaller than that of the cylindrical portion of the cylindrical storing portion 102 .
- the welding portion 102 d is be covered with the opening area of the bag-shaped storing portion 103 , and then, welded by heat using a heat bar or the like, and it is thereby possible to weld the bag-shaped storing portion 103 to the cylindrical storing portion 102 with ease.
- the bag-shaped storing portion 103 is formed in the shape of a bag by welding the circumference of a thin-film-shaped film (thin film with a thickness ranging from about 0.05 mm to 0.15 mm) having flexibility made of polyethylene, polypropylene or the like, and is configured, for example, as a three-side seal bag such that two films are stacked and welded in the circumference, or a two-side seal bag such that a single film is folded and welded in the side and bottom.
- the portion 103 may be configured as a tube-shaped bag.
- the bag-shaped storing portion in the invention has the structure where one end is opened to enable the portion 103 to be welded to the circular opening (welding portion 102 d ) of the cylindrical storing portion 102 , while a bottom that is a plane is not formed in the other end (such a structure is referred to as a non-independent body) (the welding area is shown by oblique lines).
- the bag-shaped storing portion of the invention is configured such that corner portions on the end portion side opposite to the welding portion 102 d are cut. More specifically, the shape of the side surface is not rectangular as shown in FIG. 11 , and, for example, as shown in FIG. 12A , by cutting the corner portions on the end portion side, has the configuration that does not cause the point portions P of 90 degrees or less between the bottom edge 103 a and side edges 103 b inside the storing portion as shown in FIG. 11 .
- an aspect of the cut between the bottom edge 103 a and side edge 103 b inside the storing portion is not limited particularly, and the cut may be made so that the bottom edge 103 a is longer than that shown in FIG. 12A as shown in FIG. 12B or may be made so that the bottom edge 103 a is longer as shown in FIG. 12C .
- the shape of the cut portion i.e. edge shape 103 d that is the cut portion is preferably formed in the shape in accordance with the curved portion 102 b formed in the cylindrical storing portion 102 .
- the shape as shown in FIG. 12A is preferably adapted to the cylindrical storing portion such that the curved portion is a relatively gently surface as shown in FIG. 12A
- the shape as shown in FIG. 12B is preferably adapted to the cylindrical storing portion such that the curved portion 102 b is a relatively longer surface along the longitudinal direction than that in the configuration as shown in FIG. 12A
- the shape as shown in FIG. 12C is preferably adapted to the cylindrical storing portion such that the curved portion is a gentler surface as shown in FIG. 10B .
- the length L 1 (see FIG. 9 ) of the bag-shaped storing portion 103 is configured to be the length in the range of 90% to 110% relative to the storing length L in the longitudinal direction of the cylindrical storing portion 102 .
- the length L 1 of bag-shaped storing portion 103 is less than 90% relative to the storing length L in the longitudinal direction of the cylindrical storing portion 102
- the distance between the bottom edge 103 a inside the storing portion and the opening 102 A on the storing portion side of the extraction opening 102 a increases, and by this means, as the internal pressure decreases by suction, the possibility increases that the stored substance existing in the area of the bottom edge 103 a does not undergo sufficient suction and remains.
- FIGS. 13A to 13F described next is a result of welding the bag-shaped storing portion 103 as shown in FIG. 12A to the cylindrical storing portion 102 with the configuration as shown in FIG. 10A to form a storage container, storing a viscous stored substance (commercially available mayonnaise) in the storage container, and extracting the stored substance by applying a predetermined suction force.
- a viscous stored substance commercially available mayonnaise
- the bag-shaped storing portion 103 gradually shrinks while causing vertical wrinkles, and the bottom edge 103 a rises toward the circular opening (area of the welding portion 102 d ) of the cylindrical storing portion 102 (see FIGS. 13B and 13C ).
- the bottom edge 103 a inside the storing portion passes through the circular opening (area of the welding portion 102 d ) of the cylindrical storing portion 102 and rises with the flow of the stored substance, and the bag-shaped storing portion 103 is inverted and drawn into the inside space of the cylindrical storing portion 102 (see FIGS. 13D and 13E ).
- the inner surface of the bag-shaped storing portion 103 comes into intimate contact with the inner surface of the cylindrical storing portion 102 (see FIG. 13F ), and the stored substance concentrates on the opening area on the storing portion side of the extraction opening 102 .
- the bag-shaped storing portion 103 when the bag-shaped storing portion 103 is inverted and drawn into the inside space of the cylindrical storing portion 102 , the inner surface of the bag-shaped storing portion 103 comes into intimate contact with the inner surface of the cylindrical storing portion 102 , and since the inner surface of the cylindrical storing portion 102 is a curved surface and any point portions do not exist, the bag-shaped storing portion 103 is hard to come into intimate contact when becoming wrinkled, and enables the stored substance to be sucked (squeezed) as much as possible.
- the suction force does not act on the bag-shaped storing portion 103 .
- the curved shape is formed such that the diameter decreases gradually toward the extraction opening 102 a side in the shape of a funnel, it is possible to extract the stored substance as much as possible even when the suction force reduces.
- the radial protrusion portions 102 c extending toward the extraction opening 102 a are formed in the inner surface of the curved portion 102 b, flow paths toward the extraction opening 102 a are easy to reserve, and it is possible to efficiently extract the stored substance.
- the bag-shaped storing portion 103 is formed of a thin film, and therefore, sometimes partially shrinks.
- the length L 1 is set at the range of 90% to 110% relative to the storing length L in the longitudinal direction of the cylindrical storing portion 102 , as shown in FIG. 13F , the bottom edge 103 a area can be positioned in the vicinity of the extraction opening portion, and by this means, it is possible to efficiently extract the stored substance even when the internal pressure decreases by suction.
- the bag-shaped storing portion 103 is a non-independent body, and is configured so that points portions with an acute angle do not exist in the bottom edge portion by cutting corner portions on the end portion side, and further, since the edge shape of the cut portion is formed to follow the curved portion of the cylindrical storing portion 102 , it is possible to extract the stored substance efficiently without the substance remaining.
- the storage container 101 as described above has the structure that the bag-shaped storing portion 103 formed in the shape of a bag to be a non-independent body is welded along the circular opening on the other end side of the cylindrical storing portion 102 made of a resin having the extraction opening 102 a, the structure is simple and is easy to manufacture, and it is possible to obtain the configuration with the cost reduced, easy to recycle, and the like.
- the cross-sectional shape is not changed along the longitudinal direction, but may be changed as in Embodiment 1 described previously.
- the end portion may be cut in the shape of an arc, or may be cut by a plurality of straight lines in multi-stage without cutting in the shape of an arc.
Abstract
A storage container according to an aspect of the invention is provided with a tube-shaped storing portion formed of a resin having an extraction opening enabling a stored substance to be sucked in a center area on one end side, and a circular opening on the other end side, and a bag-shaped storing portion which is welded along the circular opening of the tube-shaped storing portion, enters inside the tube-shaped storing portion to be able to come into intimate contact with an inner surface of the tube-shaped storing portion in sucking through the extraction opening, and is formed of a thin film in the shape of a bag to be a non-independent body, where the tube-shaped storing portion changes in cross-sectional shape from a circular shape to an elliptical shape toward one end side from the other end side.
Description
- The present disclosure relates to subject matter contained in Japan Patent Application No. 2009-151192 filed on Jun. 25, 2009 and Japan Patent Application No. 2009-290385 filed on Dec. 22, 2009, which are expressly incorporated herein by reference in its entireties.
- The present invention relates to a storage container for storing viscous liquids.
- Conventionally, for example, as disclosed in Japanese Unexamined Patent Publication No. 2001-199455, a storage container has been known which is capable of storing viscous liquids (hereinafter, referred to as stored substances) such as ink for printing. Such a storage container is installed in a predetermined position of an external apparatus such as a printer, and the stored substance is extracted with a suction mechanism provided in the external apparatus, and supplied to a predetermined position. More specifically, a storage container as disclosed in Japanese Unexamined Patent Publication No. 2001-199455 has a configuration provided with a container body formed in the shape of a bag made of a thin-film-shaped resin film, and a support member which is enclosed in the inside of the container body, retains the container body in the shape of a box, and has an extraction opening protruding from the container body.
- Then, in the aforementioned configuration, when suction is performed from the extraction opening using a pump or the like, the thin-film-shaped resin film is inverted to roll inside the support member as the stored substance flows out. Then, when the stored substance is extracted completely, the resin film changes to a state of entering inside the support member.
- The aforementioned storage container has the structure that the support member is enclosed inside the container body formed of a resin film, the support member retains the container body in predetermined form, the manufacturing process is thereby complicated, and the cost is increased.
- Further, since the above-mentioned storage container has the structure that the surface of the support member and the container body are in intimate contact with each other widely, the adhesion therebetween tends to be insufficient such that the container body becomes wrinkled, the stored substance thereby remains in a gap (outer side of the support member) therebetween in sucking, and there is a possibility that the stored substance is wasted. Further, the container body formed from the resin film has the structure in the shape of a box (with the bottom) in consideration of the shape retention property. However, in such a shape, even when the container body enters inside the support member in sucking, the adhesion with the inner surface of the support member deteriorates finally, and as a result, the stored substance tends to remain also on the inner surface side of the support member.
- Accordingly, required is a storage container enabling a stored substance to be extracted with minimum wastage while having inexpensive manufacturing cost.
- In an aspect of the invention, a storage container is provided with a tube-shaped storing portion formed of a resin having an extraction opening enabling a stored substance to be sucked in a center area on one end side, and a circular opening on the other end side, and a bag-shaped storing portion which is welded along the circular opening of the tube-shaped storing portion, enters inside the tube-shaped storing portion to be able to come into intimate contact with an inner surface of the tube-shaped storing portion in sucking through the extraction opening, and is formed of a thin film in the shape of a bag to be a non-independent body, where the tube-shaped storing portion changes in cross-sectional shape from a circular shape to an elliptical shape toward one end side from the other end side.
- The storage container with the aforementioned configuration has the structure that the bag-shaped storing portion formed in the shape of a bag that is a non-independent body is welded along the circular opening on the other end side of the tube-shaped storing portion formed of a resin having the extraction opening, thus has a simplified structure, while being manufactured with ease, and thereby enables reductions in cost. Particular, since the bag-shaped storing portion is configured as a non-independent body (in a state where three sides, the side portions and bottom portion, are welded), the welding process is simplified, and the cost is, reduced.
- Further, since the bag-shaped storing portion is configured as a non-independent body, when the bag-shaped storing portion is welded along the circular opening of the tube-shaped storing portion, its cross-sectional shape is circular in the welding portion, and the cross section changes to an elliptical shape as separating from the welding portion (the bag-shaped storing portion enters inside the tube-shaped storing portion and comes into intimate contact with the inner surface in sucking from the extraction opening of the tube-shaped storing portion.) In consideration of such a shape, since the tube-shaped storing portion is changed in cross-sectional shape from a circular shape to an elliptical shape toward the extraction opening side from the welding portion, and thus is adapted to the cross-sectional shape of the entering bag-shaped storing portion, the bag-shaped storing portion comes into intimate contact with the inner surface of the tube-shaped storing portion without causing wrinkles or the like, and it is possible to extract the stored substance with efficiency.
- Furthermore, the tube-shaped storing portion is configured such that the welding portion with the bag-shaped storing portion is circular, therefore, does not cause a crush or the like in sucking the stored substance, and further has the configuration that the basic shape changes from circular cross section to elliptical cross section, the entire inner surface is thus configured as a curved surface, and therefore, the stored substance is hard to remain in sucking the stored substance.
- Moreover, in another aspect of the invention, a storage container is characterized by having a cylindrical storing portion formed of a resin in the shape of a cylinder having an extraction opening enabling a stored substance to be sucked in a center area on one end side, and a bag-shaped storing portion formed in the shape of a bag to be a non-independent body using a thin film that is welded along a circular opening on the other end side of the cylindrical storing portion and that enters inside the cylindrical storing portion to be able to come into intimate contact with an inner surface of the cylindrical storing portion in sucking from the extraction opening, where the bag-shaped storing portion has a length in the range of 90% to 110% relative to the storing length in the longitudinal direction of the cylindrical storing portion, and is cut in corner portions on the end portion side opposite to the welding portion.
- The storage container with the aforementioned configuration has the structure that the bag-shaped storing portion formed in the shape of a bag that is a non-independent body is welded along the circular opening on the other end side of the cylindrical storing portion formed of a resin having the extraction opening, thus has a simplified structure, while being manufactured with ease, and thereby enables reductions in cost. Further, the storage container is in the form of a cylinder in the basic portion, the stored substance is thereby hard to remain in sucking the stored substance, and with respect to the bag-shaped storing portion, since the corner portions are cut on the end portion side opposite to the welding portion in the non-independent body, the stored substance is hard to remain. Furthermore, the bag-shaped storing portion has the length in the range of 90% to 110% relative to the storing length in the longitudinal direction of the cylindrical storing portion, its bottom edge area can be located in the vicinity of the extraction opening portion when the bag-shaped storing portion is inverted and drawn into the inside of the cylindrical storing portion in sucking, and by this means, it is possible to extract the stored substance with efficiency.
- Additional objects and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objects and advantages of the invention may be realized and obtained by means of the instrumentalities and combinations particularly pointed out hereinafter.
- The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate embodiments of the invention, and together with the general description given above and the detailed description of the embodiments given below, serve to explain the principles of the invention.
-
FIG. 1 is a perspective view showing a storage container according toEmbodiment 1 of the invention; -
FIG. 2A is a front view of the storage container: -
FIG. 2B is a side elevational view of the storage container; -
FIG. 3A is a cross-sectional view taken along the A-A line inFIG. 2A ; -
FIG. 3B is a cross-sectional view taken along the B-B line ofFIG. 2B ; -
FIG. 3C is a cross-sectional view taken along the C-C line ofFIG. 2B ; -
FIG. 4 is a diagram showing a configuration of a bag-shaped storing port ion (non-independent body) while showing the configuration that corner portions on the end portion side are not cut; -
FIGS. 5A to 5C are views showing a configuration of the bag-shaped storing portion as shown inFIG. 1 , and are views showing a configuration example of a cut portion in a corner portion on the end portion side; -
FIGS. 6A to 6F are views sequentially showing changes of the bag-shaped storing portion in storing a viscous stored substance in the storage container as shown inFIG. 1 and sucking the substance from an extraction opening; -
FIG. 7A is a perspective view of a blockage preventing member inserted in the extraction opening; -
FIG. 7B is a front view of the blockage preventing member inserted in the extraction opening; -
FIG. 7C is a plan view of the blockage preventing member inserted in the extraction opening; -
FIG. 8 is a view showing a state where the blockage preventing member as shown inFIG. 7 is inserted in the extraction opening portion; -
FIG. 9A is a perspective view showing a storage container according toEmbodiment 2 of the invention; -
FIG. 9B is a front view showing the storage container according toEmbodiment 2 of the invention; -
FIG. 10A is a view showing a configuration of a cylindrical storing portion as shown inFIGS. 9A and 9B ; -
FIGS. 10B and 10C are views showing modification examples of the cylindrical storing portion; -
FIG. 11 is a view showing a configuration of a bag-shaped storing portion without corner portions on the end portion side being cut; -
FIGS. 12A to 12C are views showing a configuration of the bag-shaped storing portion as shown inFIGS. 9A and 9B and showing an example of a cut state of corner portions on the end portion side; and -
FIGS. 13A to 13F are views sequentially showing changes of the bag-shaped storing portion in storing a viscous stored substance in the storage container as shown inFIGS. 9A and 9B and sucking the substance from an extraction opening. - As shown in
FIGS. 1 to 3 , astorage container 1 according toEmbodiment 1 of the invention stores a viscous liquid (referred to as a stored substance) such as ink, and as described later, is provided with a tube-shapedstoring portion 2 changing in cross-sectional shape from a circular shape (on the welding portion side) to an elliptical shape (on the extraction opening side), and a bag-shapedstoring portion 3 welded along a lower circular opening of the tube-shapedstoring portion 2. - In the tube-shaped
storing portion 2, anextraction opening 2 a enabling a stored substance to be sucked is formed on the center axis on one end side. In this Embodiment, theextraction opening 2 a is formed from a plug with a screw, and by attaching and detaching a cap (sealing member) not shown, enables a stored substance to be sealed and extracted. In other words, in actually using thestorage container 1, thecontainer 1 is inserted in a predetermined portion of an external apparatus with the sealing member removed, and the stored substance is extracted by a sucking mechanism such as a pump. In addition, the above-mentionedextraction opening 2 a may be not used only in extracting the stored substance, and also have the function as a filling opening to fill the stored substance. Further, the extraction opening may have a configuration that an extraction needle is inserted in the sealing member to suck the stored substance. - The above-mentioned tube-shaped
storing portion 2 is formed in one piece (blow molding, injection molding, etc.) of a plastic material such as, for example, polyethylene, polystyrene, polypropylene and polyvinyl chloride, and is configured by a method and material enabling its manufacturing with low cost. Further, the thickness is only required to be an extent (for example, about 0.8 mm to 2.0 mm) to which the shape is maintained when the bag-shapedstoring portion 3 is inverted and drawn into the inside in sucking. - Further, with respect to the outside shape, the cross section changes in shape from a circular shape to an elliptical shape toward the
extraction opening 2 a side from thewelding portion 2 d with the bag-shapedstoring portion 3. This is because of adapting to the cross-sectional shape of the bag-shapedstoring portion 3 entering inside the tube-shapedstoring portion 2 in sucking the extraction opening portion to extract the stored substance. In other words, as described later, the bag-shapedstoring portion 3 is configured as a non-independent body (three sides, side portions and bottom portion, are welded) that is easily manufactured, and therefore, when theportion 3 is welded along the circular opening of the tube-shapedstoring portion 2, the cross-sectional shape is circular in thewelding portion 2 d, while changing to an elliptical shape as separating from the welding portion. - By this means, the bag-shaped
storing portion 3 comes into intimate contact with the inner surface of the tube-shaped storing portion without causing wrinkles or the like in inverting and entering inside the tube-shapedstoring portion 2, and it is possible to extract the stored substance from theextraction opening 2 a with efficiency. In this case, the change of the shape is not limited particularly, but it is preferable to gently change the shape continuously, rather than abruptly change from the circular shape to ellipticl shape. In other words, a configuration is preferable that a large step difference is not made between the shapes. - Further, the shape of the tube-shaped
storing portion 2 is not limited particularly, and in this Embodiment, as shown inFIGS. 1 and 2 , in order that the stored substance can be extracted effectively, acurved portion 2 b is formed such that the diameter decreases gradually toward theextraction opening 2 a positioned on the center axis from the upper end side of the circular side wall. Then, it is preferable thatradial protrusion portions 2 c (are arranged radially) are formed in the inner surface of thecurved portion 2 b to extend toward theextraction opening 2 a. Theradial protrusion portions 2 c constitute a flow path guide to enable the stored substance to effectively move toward theextraction opening 2 a in sucking, and can be integrally formed in molding. In this case, the specific extension length, pitch and height of theradial protrusion portions 2 c are capable of being modified as appropriate corresponding to dimensions of the tube-shapedstoring portion 2, type (viscosity) of the stored substance, etc. - In addition, with respect to the
curved portion 2 b formed in the tube-shaped storing portion, theportion 2 b is only required to adapt to cut portions described later formed in the bag-shapedstoring portion 3, and can be modified as appropriate. In other words, as long as such a configuration is obtained that the stored substance is capable of moving toward the extraction opening equally in undergoing the sucking action, the shape can be modified as appropriate. - To the tube-shaped
storing portion 2 is welded the opening end portion of the bag-shapedstoring portion 3. In this case, in the tube-shapedstoring portion 2, at least the circular opening is formed in the same diameter over a predetermined length L, and the bag-shapedstoring portion 3 is welded to the outer surface of the area (within the range of the predetermined length L, and in this range, thewelding portion 2 d is formed) in which the tube-shapedstoring portion 2 has the same diameter. - More specifically, for example, the
welding portion 2 d may be in the range of about 5 mm to 15 mm, is covered with the opening area of the bag-shapedstoring portion 3, and then, welded using a heat bar or the like, and it is thereby possible to weld the bag-shapedstoring portion 3 to the tube-shapedstoring portion 2 with ease. - Further, in the tube-shaped
storing portion 2, a pair ofprotrusions 2 e protruding outward are formed at an interval of 180 degrees in the area where the bag-shaped storing portion is welded. By forming such a pair ofprotrusions 2 e, as described above, it is possible to stabilize a seal state in welding the bag-shapedstoring portion 3 using the heat bar. - The bag-shaped
storing portion 3 is formed in the shape of a bag by welding the circumference of a thin-film-shaped film (thin film with a thickness ranging from about 0.05 mm to 0.15 mm, for example, a laminate film where a seal portion layer is polyethylene) having flexibility made of polyethylene, polypropylene or the like, and to reduce the cost, for example, is configured as a three-side seal bag such that two thin-film-shaped films are stacked and welded in the circumference. - Herein, the configuration of the bag-shaped storing portion is described with reference to
FIGS. 4 and 5 . - The bag-shaped
storing portion 3 in the invention has the structure (non-independent structure) where one end is opened to enable theportion 3 to be welded to the outer surface (weldingportion 2 d) of the circular opening portion of the tube-shapedstoring portion 2, while a bottom that is a plane is not formed on the other end (welding area 3A is shown by oblique lines). Further, the bag-shapedstoring portion 3 of this Embodiment is configured such that corner portions on the end portion side opposite to thewelding portion 2 d are cut. More specifically, the shape of the side surface is not rectangular as shown inFIG. 4 , and as shown inFIG. 5A , by cutting (formingcut portions 3 d) the corner portions on the end portion side in the shape of a curve corresponding to thecurved portion 2 b of the tube-shapedstoring portion 2, has the configuration that does not cause the point portions P of substantially 90 degrees, or less between thebottom edge 3 a andside edges 3 b inside the storing portion as shown inFIG. 4 . - In addition, as shown in
FIGS. 5B and 5C , an aspect of the cut between thebottom edge 3 a andside edge 3 b inside the storing portion is not limited particularly, and the cut may be made linearly so that thebottom edge 3 a is longer as shown inFIG. 5B or may be made so that thebottom edge 3 a is shorter as shown inFIG. 5C . - In this case, the shape of the cut portion (edge-shape cut portion) 3 d is preferably formed in the shape in accordance with the
curved portion 2 b formed in the tube-shaped storing portion 2 (edge shapes of the cut portions formed in the bag-shaped storing portion are almost adapted to a shape of the curved portion). More specifically, the shape as shown inFIG. 5B is preferably adapted to the tube-shaped storing portion such that the curved portion is a relatively gently surface as shown inFIG. 2 , and the shape as shown inFIG. 5C is preferably adapted to the tube-shaped storing portion such that thecurved portion 2 b is a relatively longer surface along the longitudinal direction than that in the configuration as shown inFIG. 2 . - By thus forming the cut portions, it is possible to decrease the possibility that the stored substance remains in the corner portions.
- Further, the capacity of the bag-shaped
storing portion 3 is preferably set at the same (including substantially the same) capacity of the tube-shapedstoring portion 2. By this means, when the bag-shapedstoring portion 3 undergoes suction from theextraction opening 2 a portion, the inner surface of the bag-shapedportion 3 comes into intimate contact with the inner surface of the tube-shapedstoring portion 2, while theportion 3 is inverted and drawn into the inside space of the tube-shapedstoring portion 2 with the flow of the stored substance, and at this point, by setting the above-mentioned capacity, it is possible to position thebottom edge 3 a of the bag-shaped storing portion in the vicinity of theopening 2A on the storing portion side of theextraction opening 2 a, and to extract the stored substance effectively without waste. - In other words, in the case where the capacity of the bag-shaped
storing portion 3 is larger than that of the tube-shapedstoring portion 2, when the bag-shapedstoring portion 3 is inverted and drawn into the inside space of the tube-shapedstoring portion 2 while being inverted with the flow of the stored substance, it happens that thebottom edge 3 a of the bag-shaped storing portion bends, etc. a tendency increases to block theopening 2A on the storing portion side of theextraction opening 2 a, the suction force thereby stops acting, and the possibility increases that the stored substance existing in the vicinity of theopening 2A on the storing portion side of theextraction opening 2 a cannot be sucked and remains. Meanwhile, in the case where the capacity of the bag-shapedstoring portion 3 is smaller than that of the tube-shapedstoring portion 2, when the bag-shapedstoring portion 3 is inverted and drawn into the inside space of the tube-shapedstoring portion 2 while being inverted with the flow in the storing portion, the distance between thebottom edge 3 a inside the bag-shaped storing portion and theopening 2A on the storing portion side of theextraction opening 2 a increases, and by this means, as the internal pressure decreases by suction, the possibility increases that the stored substance existing in the area of thebottom edge 3 a does not undergo sufficient suction and remains. - Referring to
FIGS. 6A to 6F , described next is a result of storing a viscous stored substance (commercially available mayonnaise) in the storage container with the configuration as shown inFIGS. 1 and 2 , and extracting the stored substance by applying a predetermined suction force. - First, when the stored substance is extracted by applying suction to the
extraction opening 2 a with the stored substance stored in the tube-shapedstoring portion 2 and bag-shaped storing portion 3 (seeFIG. 6A ), the bag-shapedstoring portion 3 gradually shrinks while causing vertical wrinkles, and thebottom edge 3 a rises toward the circular opening (area of thewelding portion 2 d) of the tube-shaped storing portion 2 (seeFIGS. 6B and 6C ). Then, as the suction further proceeds, thebottom edge 3 a inside the storing portion passes through the circular opening (area of thewelding portion 2 d) of the tube-shapedstoring portion 2 and rises with the flow of the stored substance, and the bag-shapedstoring portion 3 is inverted and drawn into the inside space of the tube-shaped storing portion 2 (seeFIGS. 6D and 6E). Then, as the suction furthermore proceeds, the inner surface of the bag-shapedstoring portion 3 comes into intimate contact with the inner surface of the tube-shaped storing portion 2 (seeFIG. 6F ), and the stored substance concentrates on the opening area on the storing portion side of theextraction opening 2. - In addition, as shown in
FIG. 6F , when the bag-shapedstoring portion 3 is inverted and drawn into the inside space of the tube-shapedstoring portion 2, the inner surface of the bag-shapedstoring portion 3 comes into intimate contact with the inner surface of the tube-shapedstoring portion 2. In this case, since in the tube-shapedstoring portion 2 the cross-section shape changes from the circular shape to the elliptical shape toward the extraction opening side from the welding portion, and is adapted to the cross-sectional shape of the entering bag-shapedstoring portion 3, the bag-shapedstoring portion 3 does not cause wrinkles or the like, and is easy to come into intimate contact with the inner surface of the tube-shapedstoring portion 2, and it is possible to extract the stored substance with efficiency. Further, since in the tube-shapedstoring portion 2 the circular opening is formed in the same diameter over the predetermined length L, and the bag-shapedstoring portion 3 is welded to this range, when the bag-shapedstoring portion 3 is inverted and enters in the welding portion area, wrinkles or the like are prevented from occurring in this portion, and the possibility decreases that the stored substance remains. - Further, in the tube-shaped
storing portion 2, since the welding portion to the bag-shapedstoring portion 3 is configured in circular form, any crush or the like does not occur in sucking the stored substance. Moreover, in the tube-shaped storing portion, since the basic shape changes from the circular shape in cross section to the elliptical shape in cross section, and the entire inner surface is configured as a curved surface, the stored substance is hard to remain in sucking the stored substance. - Furthermore, since the inner surface of the tube-shaped
storing portion 2 is a curved surface and any point portions do not exist, the bag-shapedstoring portion 3 is hard to come into intimate contact when becoming wrinkled, and it is possible to suck (squeeze) the stored substance as much as possible. Meanwhile, when the inner surface of the bag-shapedstoring portion 3 comes into intimate contact with the inner surface of the tube-shapedstoring portion 2, the suction force does not act on the bag-shapedstoring portion 3. However, since the curved shape is formed such that the diameter decreases gradually toward theextraction opening 2 a side, it is possible to extract the stored substance as much as possible even when the suction force reduces. - Moreover, as described above, the
radial protrusion portions 2 c extending toward theextraction opening 2 a are formed in the inner surface of thecurved portion 2 b, flow paths toward theextraction opening 2 a are easy to reserve, and it is possible to efficiently extract the stored substance. - Further, since the capacity of the bag-shaped
storing portion 3 is set at the same capacity of the tube-shapedstoring portion 2, as shown inFIG. 6F , thebottom edge 3 a area can be positioned in the vicinity of the extraction opening portion, and by this means, it is possible to efficiently extract the stored substance even when the internal pressure decreases by suction. Particularly, the bag-shapedstoring portion 3 is a non-independent body, and is configured so that point portions with an acute angle do not exist in the bottom edge portion by cutting corner portions on the end portion side, and further, since the edge shape of the cut portion is formed to follow the curved portion of the tube-shapedstoring portion 2, it is possible to extract the stored substance efficiently without the substance remaining. - In addition, when suction tests were actually performed in the storage container with the structure as shown in
FIGS. 1 and 2 , the residual amount of the stored substance was 2.0% or less, and the result that the stored substance can be extracted efficiently was obtained. - Then, since the
storage container 1 as described above has the structure that the bag-shapedstoring portion 3 formed in the shape of a bag to be a non-independent body is welded along the circular opening on the other end side of the tube-shapedstoring portion 2 made of a resin having theextraction opening 2 a, the structure is simple and is easy to manufacture, and it is possible to obtain the configuration with the cost reduced, easy to recycle, and the like. -
FIG. 7 shows a blockage preventing member inserted in the extraction opening portion of thestorage container 1 as described above, whereFIG. 7A is a perspective view,FIG. 7B is a front view, andFIG. 7C is a plan view. For example, in thestorage container 1, theblockage preventing member 20 as shown inFIGS. 7A to 7C is inserted in the extraction opening portion as shown inFIG. 8 , and it is thereby possible to extract the stored substance more efficiently. - The
blockage preventing member 20 is formed in one piece using a resin or the like, is provided with atube portion 21 inserted in theextraction opening 2 a, andfringe 22 coming into contact with acircumferential edge 2 a′ of theextraction opening 2 a so as not to drop inside when being inserted in the extraction opening, and is configured to be detachable with respect to theextraction opening 2. - The
tube portion 21 is provided with a substantially same axial length as the length in the axial direction of theextraction opening 2 a, and is configured so that the front end is positioned in theopening 2A on the storing portion side of theextraction opening 2 a. Then, in the end face of thetube portion 21 is formed a plurality ofcut grooves 21 a at predetermined intervals (in this Embodiment, four grooves substantially 90 degrees apart). -
Such cut grooves 21 a have the function of facilitating extraction of the stored substance remaining in the vicinity of thebottom edge 3 a (in the vicinity of theopening 2A) of the bag-shapedstoring portion 3 through thecut grooves 21 a, as shown inFIG. 8 , in a stage when the inner surface of the bag-shapedstoring portion 3 comes into intimate contact with the tube-shapedstoring portion 2 finally in the suction, and the suction force does not act on the bag-shapedstoring portion 3. In other words, before the inner surface of the bag-shapedstoring portion 3 comes into intimate contact with the inner surface of tube-shapedstoring portion 2, the stored substance is extracted through thetube portion 21, and when the residual amount of the stored substance reduces finally, the residue existing in the vicinity thereof is easy to extract via thecut grooves 21 a with thin movement paths (flow paths). It is thereby possible to reduce the residual amount of the stored substance as possible. - By installing the
blockage preventing member 20 as described above, it is possible to further reduce the final remaining rate of the stored substance. - In addition, the
blockage preventing member 20 may be configured to be detachable with respect to theextraction opening 2 as shown in the figure, or may be beforehand formed integrally in the extraction opening portion. Further, the length and thickness of thetube portion 21, the number of formed cutgrooves 21 a and the like are capable of being modified as appropriate. -
FIGS. 9 and 10 show a storage container according toEmbodiment 2 of the invention. As shown in the figures, astorage container 101 according to this Embodiment stores a viscous liquid (referred to as a stored substance) such as ink, and is provided with a cylindrical (tube-shaped) storingportion 102 formed in the shape of a cylinder circular in cross section, and a bag-shapedstoring portion 103 welded along a lower circular opening of thecylindrical storing portion 102. Thestorage container 101 is formed in the shape of a circle in cross section over the longitudinal direction, and does not change the cross-sectional shape unlikeEmbodiment 1. - In the
cylindrical storing portion 102, anextraction opening 102 a enabling a stored substance to be sucked is formed on the center axis on one end side, and a sealing member (not shown) such as a cap is attached to theextraction opening 102 a and seals the stored substance. Then, in actual use, thecontainer 1 is inserted in a predetermined portion of an external apparatus with the, sealing member removed, and the stored substance is extracted by a sucking mechanism such as a pump. In this case, the extraction opening may have a configuration that an extraction needle is inserted in the sealing member to suck the stored substance. - The
cylindrical storing portion 102 is formed in one piece (resin molding) of a plastic material such as, for example, polyethylene, polystyrene and polypropylene, and the thickness thereof is only required to be an extent (for example, about 0.3 mm to 1.8 mm) to which the cylindrical shape is maintained when the bag-shapedstoring portion 103 is inverted and drawn into the inside in sucking. - Further, the outside shape (size of the diameter, length in the longitudinal direction, etc.) is not limited particularly, and in this Embodiment, as shown in
FIGS. 9 and 10A , acurved portion 102 b is formed such that the diameter gradually decreases in the shape of a funnel toward theextraction opening 102 a positioned on the center axis from the upper end side of the circumferential side wall. Then, it is preferable thatradial protrusion portions 102 c are formed in the inner surface of thecurved portion 102 b to extend toward theextraction opening 102 a. Theradial protrusion portions 102 c constitute a flow path guide to enable the stored substance to effectively move toward theextraction opening 102 a in sucking, and can be integrally formed in molding. In this case, the specific extension length, pitch and height of theradial protrusion portions 102 c are capable of being modified as appropriate corresponding to dimensions of thecylindrical storing portion 102, type (viscosity) of the stored substance, etc. - In addition, with respect to the
curved portion 102 b formed in the cylindrical storing portion, as shown inFIG. 10B , the portion may have agentle surface 102 b′ changing to theextraction opening 102 a from the circular side wall, or as shown inFIG. 10C , may have aflat surface 102 b″ (surface with a substantially right angle) changing to theextraction opening 102 a from the side wall without forming the curved portion. In other words, as long as such a configuration is obtained that the stored substance is capable of moving toward the extraction opening equally in undergoing the sucking action, the shape can be modified as appropriate, and further, may be formed of an acuter tapered curved surface than the curved surface ofFIG. 10A . - As shown in
FIG. 10A , awelding portion 102 d is formed on the lower end side of thecylindrical storing portion 102 to facilitate welding of the opening end portion of the bag-shapedstoring portion 103. For example, as shown in the figure, thewelding portion 102 d has a predetermined length L2 (about 5 mm to 15 mm) in the longitudinal direction. In addition, theportion 102 d may be formed of a circular surface with a diameter smaller than that of the cylindrical portion of thecylindrical storing portion 102. By this means, thewelding portion 102 d is be covered with the opening area of the bag-shapedstoring portion 103, and then, welded by heat using a heat bar or the like, and it is thereby possible to weld the bag-shapedstoring portion 103 to thecylindrical storing portion 102 with ease. - The bag-shaped
storing portion 103 is formed in the shape of a bag by welding the circumference of a thin-film-shaped film (thin film with a thickness ranging from about 0.05 mm to 0.15 mm) having flexibility made of polyethylene, polypropylene or the like, and is configured, for example, as a three-side seal bag such that two films are stacked and welded in the circumference, or a two-side seal bag such that a single film is folded and welded in the side and bottom. Alternately, theportion 103 may be configured as a tube-shaped bag. - Herein, the configuration of the bag-shaped storing portion is described with reference to
FIGS. 11 and 12 . - The bag-shaped storing portion in the invention has the structure where one end is opened to enable the
portion 103 to be welded to the circular opening (welding portion 102 d) of thecylindrical storing portion 102, while a bottom that is a plane is not formed in the other end (such a structure is referred to as a non-independent body) (the welding area is shown by oblique lines). Further, the bag-shaped storing portion of the invention is configured such that corner portions on the end portion side opposite to thewelding portion 102 d are cut. More specifically, the shape of the side surface is not rectangular as shown inFIG. 11 , and, for example, as shown inFIG. 12A , by cutting the corner portions on the end portion side, has the configuration that does not cause the point portions P of 90 degrees or less between thebottom edge 103 a andside edges 103 b inside the storing portion as shown inFIG. 11 . - In addition, as shown in
FIGS. 12B and 12C , an aspect of the cut between thebottom edge 103 a andside edge 103 b inside the storing portion is not limited particularly, and the cut may be made so that thebottom edge 103 a is longer than that shown inFIG. 12A as shown inFIG. 12B or may be made so that thebottom edge 103 a is longer as shown inFIG. 12C . - In this case, the shape of the cut portion i.e.
edge shape 103 d that is the cut portion is preferably formed in the shape in accordance with thecurved portion 102 b formed in thecylindrical storing portion 102. More specifically, the shape as shown inFIG. 12A is preferably adapted to the cylindrical storing portion such that the curved portion is a relatively gently surface as shown inFIG. 12A , and the shape as shown inFIG. 12B is preferably adapted to the cylindrical storing portion such that thecurved portion 102 b is a relatively longer surface along the longitudinal direction than that in the configuration as shown inFIG. 12A . Further, the shape as shown inFIG. 12C is preferably adapted to the cylindrical storing portion such that the curved portion is a gentler surface as shown inFIG. 10B . - Further, the length L1 (see
FIG. 9 ) of the bag-shapedstoring portion 103 is configured to be the length in the range of 90% to 110% relative to the storing length L in the longitudinal direction of thecylindrical storing portion 102. By this means, when the bag-shapedstoring portion 103 undergoes suction from theextraction opening 102 a portion, the inner surface of the bag-shapedportion 103 comes into intimate contact with the inner surface of thecylindrical storing portion 102, while theportion 103 is inverted and drawn into the inside space of thecylindrical storing portion 102 with the flow of the stored substance, and at this point, by setting the length at the above-mentioned range, it is possible to position thebottom edge 103 a inside the storing portion in the vicinity of theopening 102A on the storing portion side of theextraction opening 102 a, and to extract the stored substance effectively without waste. - In other words, in the case where the length L1 of the bag-shaped
storing portion 103 exceeds 110% relative to the storing length L in the longitudinal direction of thecylindrical storing portion 102, when the bag-shapedstoring portion 103 is inverted and drawn into the inside space of thecylindrical storing portion 102 while being inverted with the flow of the stored substance, it happens that thebottom edge 103 a inside the storing portion bends, etc. a tendency increases to block theopening 102A on the storing portion side of theextraction opening 102 a, the suction force thereby stops acting, and the possibility increases that the stored substance existing in the vicinity of theopening 102A on the storing portion side of theextraction opening 102 a cannot be sucked and remains. Meanwhile, in the case where the length L1 of bag-shapedstoring portion 103 is less than 90% relative to the storing length L in the longitudinal direction of thecylindrical storing portion 102, when the bag-shapedstoring portion 103 is inverted and drawn into the inside space of thecylindrical storing portion 102 while being inverted with the flow in the storing portion, the distance between thebottom edge 103 a inside the storing portion and theopening 102A on the storing portion side of theextraction opening 102 a increases, and by this means, as the internal pressure decreases by suction, the possibility increases that the stored substance existing in the area of thebottom edge 103 a does not undergo sufficient suction and remains. - Referring to
FIGS. 13A to 13F , described next is a result of welding the bag-shapedstoring portion 103 as shown inFIG. 12A to thecylindrical storing portion 102 with the configuration as shown inFIG. 10A to form a storage container, storing a viscous stored substance (commercially available mayonnaise) in the storage container, and extracting the stored substance by applying a predetermined suction force. - First, when the stored substance is extracted by applying suction to the
extraction opening 102 a with the stored substance stored in thecylindrical storing portion 102 and bag-shaped storing portion 103 (seeFIG. 13A ), as described previously, the bag-shapedstoring portion 103 gradually shrinks while causing vertical wrinkles, and thebottom edge 103 a rises toward the circular opening (area of thewelding portion 102 d) of the cylindrical storing portion 102 (seeFIGS. 13B and 13C ). Then, as the suction further proceeds, thebottom edge 103 a inside the storing portion passes through the circular opening (area of thewelding portion 102 d) of thecylindrical storing portion 102 and rises with the flow of the stored substance, and the bag-shapedstoring portion 103 is inverted and drawn into the inside space of the cylindrical storing portion 102 (seeFIGS. 13D and 13E ). Then, as the suction furthermore proceeds, the inner surface of the bag-shapedstoring portion 103 comes into intimate contact with the inner surface of the cylindrical storing portion 102 (seeFIG. 13F ), and the stored substance concentrates on the opening area on the storing portion side of theextraction opening 102. - In addition, as shown in
FIG. 13F , when the bag-shapedstoring portion 103 is inverted and drawn into the inside space of thecylindrical storing portion 102, the inner surface of the bag-shapedstoring portion 103 comes into intimate contact with the inner surface of thecylindrical storing portion 102, and since the inner surface of thecylindrical storing portion 102 is a curved surface and any point portions do not exist, the bag-shapedstoring portion 103 is hard to come into intimate contact when becoming wrinkled, and enables the stored substance to be sucked (squeezed) as much as possible. Further, when the inner surface of the bag-shapedstoring portion 103 comes into intimate contact with the inner surface of thecylindrical storing portion 102, the suction force does not act on the bag-shapedstoring portion 103. However, since the curved shape is formed such that the diameter decreases gradually toward theextraction opening 102 a side in the shape of a funnel, it is possible to extract the stored substance as much as possible even when the suction force reduces. - In this case, as described above, the
radial protrusion portions 102 c extending toward theextraction opening 102 a are formed in the inner surface of thecurved portion 102 b, flow paths toward theextraction opening 102 a are easy to reserve, and it is possible to efficiently extract the stored substance. - Further, the bag-shaped
storing portion 103 is formed of a thin film, and therefore, sometimes partially shrinks. However, since the length L1 is set at the range of 90% to 110% relative to the storing length L in the longitudinal direction of thecylindrical storing portion 102, as shown inFIG. 13F , thebottom edge 103 a area can be positioned in the vicinity of the extraction opening portion, and by this means, it is possible to efficiently extract the stored substance even when the internal pressure decreases by suction. Particularly, the bag-shapedstoring portion 103 is a non-independent body, and is configured so that points portions with an acute angle do not exist in the bottom edge portion by cutting corner portions on the end portion side, and further, since the edge shape of the cut portion is formed to follow the curved portion of thecylindrical storing portion 102, it is possible to extract the stored substance efficiently without the substance remaining. - In addition, when suction tests were actually performed under the same conditions in the bag-shaped storing portion with the structure as shown in
FIG. 12A and the configuration without the corner portions on the end portion side being cut as shown inFIG. 11 , 5.70% of the stored substance remained relative to the initial filling amount in the bag-shapedstoring portion 103 with the structure as shown inFIG. 11 , and in contrast thereto, 3.07% of the stored substance only remained in the structure (with the corner portions cut) as shown inFIG. 12A . Thus, the result that the stored substance can be extracted efficiently was obtained. - Then, since the
storage container 101 as described above has the structure that the bag-shapedstoring portion 103 formed in the shape of a bag to be a non-independent body is welded along the circular opening on the other end side of thecylindrical storing portion 102 made of a resin having theextraction opening 102 a, the structure is simple and is easy to manufacture, and it is possible to obtain the configuration with the cost reduced, easy to recycle, and the like. - In the
storage container 101 of this Embodiment, the cross-sectional shape is not changed along the longitudinal direction, but may be changed as inEmbodiment 1 described previously. - In the foregoing, the Embodiments of the invention are described, but the invention is not limited to the above-mentioned Embodiments, and is capable of being modified in various manners.
- For example, it is possible to modify as appropriate the dimensions of the tube-shaped
storing portion 2, the shape extending to theextraction opening 2 from the side surface, the configuration of theextraction opening 2 a in the tube-shapedstoring portion 2 and so on. Further, when cut portions are formed in corner portions of the bag-shapedstoring portion 3, the cut portions are only required such that any acute portion of 90° or less does not exist in the storage space. Therefore, the end portion may be cut in the shape of an arc, or may be cut by a plurality of straight lines in multi-stage without cutting in the shape of an arc. - Additional advantages and modifications will readily occur to those skilled in the art. Therefore, the invention in its broader aspects is not limited to the specific details and representative embodiments shown and described herein. Accordingly, various modifications may be made without departing from the spirit or scope of the general inventive concept as defined by the appended claims and their equivalents.
Claims (12)
1. A storage container comprising:
a tube-shaped storing portion formed of a resin having an extraction opening enabling a stored substance to be sucked in a center area on one end side, and a circular opening on the other end side; and
a bag-shaped storing portion which is welded along the circular opening of the tube-shaped storing portion, enters inside the tube-shaped storing portion to be able to come into intimate contact with an inner surface of the tube-shaped storing portion in sucking through the extraction opening, and is formed of a thin film in the shape of a bag to be a non-independent body,
wherein the tube-shaped storing portion changes in cross-sectional shape from a circular shape to an elliptical shape toward the one end side from the other end side.
2. The storage container according to claim 1 , wherein in the bag-shaped storing portion, cut portions are formed in, corner portions on an end portion side opposite to an end portion welded to the tube-shaped storing portion.
3. The storage container according to claim 2 , wherein the tube-shaped storing portion has a curved portion such that the diameter decreases toward the extraction opening, and
edge shapes of the cut portions formed in the bag-shaped storing portion are almost adapted to a shape of the curved portion.
4. The storage container according to claim 3 , wherein in an inner surface of the curved portion of the tube-shaped storing portion are formed protrusion portions that extend toward the extraction opening and that are arranged radially.
5. The storage container according to claim 1 , wherein a capacity of the tube-shaped storing portion is substantially the same as a capacity of the bag-shaped storing portion.
6. The storage container according to claim 1 , wherein the tube-shaped storing portion has a area that is formed in the same diameter over a predetermined length on the other end side having the circular opening, and the bag-shaped storing portion is welded to the outer surface of the area with the same diameter in the tube-shaped storing portion.
7. The storage container according to claim 6 , wherein a pair of protrusions protruding outward are formed at an interval of 180 degrees in the circumferential direction, in an area where the bag-shaped storing portion is welded, in the outer surface of the tube-shaped storing portion.
8. The storage container according to claim 1 , further comprising:
a blockage preventing member detachable with respect to the extraction opening,
wherein the blockage preventing member has a tube portion, and the tube portion has a cut groove for defining a flow path with the bag-shaped storing portion entering inside the tube-shaped storing portion in sucking through the extraction opening.
9. The storage container according to claim 8 , wherein the tube portion has the substantially same axis length as a length in the axis direction of the extraction opening.
10. The storage container according to claim 8 , wherein the cut groove has a function of facilitating extraction, through the cut groove, of the stored substance remaining in the vicinity of a bottom edge of the bag-shaped storing portion in a stage when an inner surface of the bag-shaped storing portion comes into intimate contact with the inner surface of the tube-shaped storing portion in sucking and a suction force does not act on the bag-shaped storing portion.
11. The storage container according to claim 1 , wherein the extraction opening has a plug with a screw.
12. A storage container comprising:
a tube-shaped storing portion formed of a resin having an extraction opening enabling a stored substance to be sucked in a center area on one end side, and a circular opening on the other end side; and
a bag-shaped storing portion which is welded along the circular opening of the tube-shaped storing portion, enters inside the tube-shaped storing portion to be able to come into intimate contact with an inner surface of the tube-shaped storing portion in sucking through the extraction opening, and is formed of a thin film in the shape of a bag to be a non-independent body,
wherein the bag-shaped storing portion has a length in the range of 90% to 110% relative to a storing length in the longitudinal direction of the tube-shaped storing portion.
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
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JP2009-151192 | 2009-06-25 | ||
JP2009151192A JP5219291B2 (en) | 2009-06-25 | 2009-06-25 | Container |
JP2009290385A JP4885265B2 (en) | 2009-12-22 | 2009-12-22 | Container |
JP2009-290385 | 2009-12-22 |
Publications (1)
Publication Number | Publication Date |
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US20100327015A1 true US20100327015A1 (en) | 2010-12-30 |
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US12/801,473 Abandoned US20100327015A1 (en) | 2009-06-25 | 2010-06-10 | Storage container |
Country Status (6)
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US (1) | US20100327015A1 (en) |
EP (1) | EP2266893B8 (en) |
CN (1) | CN101934882B (en) |
AT (1) | ATE543751T1 (en) |
ES (1) | ES2380210T3 (en) |
HK (1) | HK1147982A1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20140103034A1 (en) * | 2012-10-12 | 2014-04-17 | Grayling Industries, Inc. | Flexible container liner |
US20150321793A1 (en) * | 2012-12-27 | 2015-11-12 | Genesistec Ltd. | Container |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
USD956477S1 (en) | 2019-02-25 | 2022-07-05 | Strauss Group Ltd. | Collapsible bottle |
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- 2010-06-14 EP EP10165862A patent/EP2266893B8/en not_active Not-in-force
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Also Published As
Publication number | Publication date |
---|---|
EP2266893B1 (en) | 2012-02-01 |
CN101934882A (en) | 2011-01-05 |
ATE543751T1 (en) | 2012-02-15 |
ES2380210T3 (en) | 2012-05-09 |
EP2266893B8 (en) | 2012-05-23 |
EP2266893A1 (en) | 2010-12-29 |
HK1147982A1 (en) | 2011-08-26 |
CN101934882B (en) | 2013-10-09 |
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