US20130263762A1 - Table adjustable in height and pitch - Google Patents
Table adjustable in height and pitch Download PDFInfo
- Publication number
- US20130263762A1 US20130263762A1 US13/442,936 US201213442936A US2013263762A1 US 20130263762 A1 US20130263762 A1 US 20130263762A1 US 201213442936 A US201213442936 A US 201213442936A US 2013263762 A1 US2013263762 A1 US 2013263762A1
- Authority
- US
- United States
- Prior art keywords
- pitch
- upper rod
- included angle
- inserts
- lever
- 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
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Classifications
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47B—TABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
- A47B17/00—Writing-tables
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47B—TABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
- A47B2200/00—General construction of tables or desks
- A47B2200/0035—Tables or desks with features relating to adjustability or folding
- A47B2200/004—Top adjustment
- A47B2200/0042—Height and inclination adjustable desktop, either separately or simultaneously
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47B—TABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
- A47B2200/00—General construction of tables or desks
- A47B2200/0035—Tables or desks with features relating to adjustability or folding
- A47B2200/004—Top adjustment
- A47B2200/0043—Inclination adjustable work top
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47B—TABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
- A47B2200/00—General construction of tables or desks
- A47B2200/0035—Tables or desks with features relating to adjustability or folding
- A47B2200/004—Top adjustment
- A47B2200/0044—Inclinable work surface around a mobile axis
Landscapes
- Accommodation For Nursing Or Treatment Tables (AREA)
Abstract
A table adjustable in height and pitch is disclosed. The table includes a base, a pair of upper rods, a table board and a first pitch-adjusting mechanism. The base includes a pair of legs, each having a slot and a plurality of dents. The leg and the upper rods include a first included angle. The first pitch-adjusting mechanism serving to adjust the first included angle includes two positioning rods, a lever and a plurality of links. Each of the positioning rods has an insert and the two inserts have an engaged state where they are retained by the dents and a disengaged state where they are slidable along the slots. The links build kinetic connection between the positioning rods and the lever, so that when the lever is operated, the two inserts are switched between the engaged and disengaged states.
Description
- 1. Technical Field The present invention relates to tables, and more particularly to a table with its table board adjustable in both height and pitch.
- 2. Description of Related Art
- Adjustable tables have been extensively applied as, for example, drawing tables, map display stands, notice boards and so on. Such a table has its table board adjustable in pitch and thus can satisfy users' practical needs.
- One example of the known adjustable tables is as described in U.S. Pat. No. 4,058,066. The prior-art table has a pair of front legs, a pair of upper legs and a table board. The front legs are configured to swing with respect to the upper legs, and the upper legs can swing with respect to the table board. Since the angle-adjusting mechanism between the front legs and the upper legs is deposited behind the table board, for table adjustment, a user has to first move to the lateral of the table to operate the angle-adjusting mechanism and then move back to the front of the table to check whether the adjusted pitch is satisfying. Such operation may have to be repeated for several times before the desired pitch is achieved.
- Therefore, it would be desirable to have a table allows convenient adjustment of its table board in both pitch and height.
- One objective of the present invention is to provide a table whose table board can be conveniently adjusted by a user standing in front of the table.
- To achieve this and other objectives of the present invention, the disclosed adjustable table comprises a base, a pair of upper rods, a table board and a first pitch-adjusting mechanism. The base includes a pair of legs, each having a leg top, a slot and a plurality of dents, wherein the dents are separated and arranged abreast along a length of the slot. Each of the upper rods has a first connecting end and a second connecting end. The first connecting end is pivotally connected to the corresponding leg top. The leg and the corresponding upper rod include a first included angle. The table board is connected to the second connecting ends. The first pitch-adjusting mechanism serving to adjust the first included angle includes two positioning rods, a lever and a plurality of links. Each of the positioning rods has a pivotal end and a slotted end. The pivotal end is pivotally connected to the corresponding upper rod. Each of the slotted ends has an insert extending transversely. The two inserts have an engaged state and a disengaged state. In the engaged state, the two inserts are retained in the dents so that the first included angle is fixed. In the disengaged state, the two inserts leave from the dents and are free to slide along the slots, thereby changing the first included angle. The lever swings against a shaft, which is supported by at least one of the upper rods and close to the second connecting end of the upper rod. The links build kinetic connection between the positioning rods and the lever, so that when the lever is operated, the two inserts are switched between the engaged and disengaged states.
- With the configuration as described above, the present invention allows a user standing in front of the table board to easily make adjustment by operating the lever to disengage the inserts, changing the first included angle and then releasing the lever to make the table board posed as desired.
- The invention as well as a preferred mode of use, further objectives and advantages thereof will be best understood by reference to the following detailed description of illustrative embodiments when read in conjunction with the accompanying drawings, wherein:
-
FIG. 1 is a schematic drawing of an adjustable table according to the present invention, wherein a table board is separated from a base supporting it; -
FIG. 2 is a partial, exploded view of the table according to the present invention; -
FIG. 3 is an exploded view of a second pitch-adjusting mechanism of the table; -
FIG. 4 is a cross-sectional view of the table taken along Line 4-4 ofFIG. 1 ; -
FIG. 5 is an applied view of the table wherein two inserts thereof are engaged; -
FIG. 6 is another applied view of the table wherein the two inserts are disengaged; -
FIG. 7 is another applied view of the table wherein the two inserts are engaged and a first included angle is greater than that shown inFIG. 5 ; -
FIG. 8 is another applied view of the table wherein the two inserts are disengaged and a second included angle is greater than that shown inFIG. 7 ; and -
FIG. 9 is a perspective view of an adjustable table according to another embodiment of the present invention. - While a preferred embodiment provided hereinafter for illustrating the concept of the present invention as described above, it is to be understood that the components of the embodiment shown in the accompanying drawings are depicted for the sake of easy explanation and need not to be made to exact scale. Unless otherwise noted, like elements will be identified by identical numbers throughout all figures.
- Referring to
FIG. 1 andFIG. 2 , in one preferred embodiment of the present invention, a table adjustable in height and pitch is primarily comprised of abase 10, a pair ofupper rods 20, atable board 30, a first pitch-adjusting mechanism 40 and a second pitch-adjusting mechanism 50. - The
base 10 comprises a pair oflegs 11 and a pair of feet that support thelegs 11 to stand upright. In another embodiment, thelegs 11 may be adjustable in length. Each of thelegs 11 has aleg top 14 and aslot 15 deposited near theleg top 14. Theslot 15 is provided with a plurality ofdents 16 arranged along the length of theslot 15 and communicated with theslot 15. - Each of the
upper rods 20 has a first connectingend 21 and a second connectingend 22. The first connectingend 21 is pivotally coupled with thecorresponding leg top 14. A first included angle is included by each saidleg 11 and the correspondingupper rod 20. Additionally, at least one saidupper rod 20 has alengthwise unit 23 extending along its length. In the illustrated embodiment, each of theupper rods 20 is equipped with thelengthwise unit 23. Thelengthwise unit 23 may comprise ashank portion 24 and twofixing segments 25. The twofixing segments 25 are located at two ends of theshank portion 24 for attaching theshank portion 24 to theupper rod 20, such that theshank portion 24 is parallel to and separated from theupper rod 20 itself. - The
table board 30 is connected to thesecond connecting ends 22. Preferably, thetable board 30 and each saidupper rod 20 include an adjustable second included angle. Thetable board 30 has twolower arms 31. Thelower arm 31 is assembled to the lower surface of thetable board 30 and aligned with the correspondingupper rod 20. Thelower arm 31 has one end pivotally connected with the second connectingend 22 of the correspondingupper rod 20 and an opposite end left free. - The first pitch-
adjusting mechanism 40 serves to adjust the first included angle and comprises twopositioning rods 41, alever 42 and several links. Each of thepositioning rods 41 has apivotal end 411 and a slottedend 412. Thepivotal end 411 is pivotally connected to the correspondingupper rod 20, and the slottedend 412 has aninsert 413 transversely extending. The twoinserts 413 are in either an engaged state or a disengaged state simultaneously. In the engaged state, as shown inFIG. 5 , the twoinserts 413 are retained bydents 16 of the same height so as to make the first included angle fixed. When the twoinsert 413 are in their disengaged state, as shown inFIG. 6 , they are not retained by anydent 16 and can move along theslot 15 to change the first included angle. Thelever 42 swings against ashaft 43 that is supported by at least one saidupper rod 20. In the present embodiment, theshaft 43 is connected between theupper rods 20 and close to the second connecting ends 22 of theupper rods 20. Thereby, when thelever 42 is operated, the twoinserts 413 are switched between the above-mentioned two states. - Furthermore, the links are connected between and thereby link the
positioning rod 41 and thelever 42. The links may include a firsttransverse link 44, a secondtransverse link 45, a firstvertical link 46 and a secondvertical link 47. The firsttransverse link 44 is connected between the pivotal ends 411 of the twopositioning rods 41. The secondtransverse link 45 is connected between the slotted ends 412 of the twopositioning rods 41. The firstvertical link 46 is connected between the first and secondtransverse links vertical link 47 is connected between the firstvertical link 46 and thelever 42. - Preferably, the disclosed table may further comprise a returning means that returns the two
inserts 413 to the engaged state. The returning means comprises at least one elastic member connected between components that have variable angles or lengths. In the present embodiment, twosprings 48 are provided between the twoupper rods 20 and the firsttransverse link 44, respectively, for facilitating the foregoing return. - The second pitch-adjusting
mechanism 50 serves to adjust the second included angle and has twosupport arms 51. Each of thesupport arms 51 can rotate with respect to thetable board 30 against afirst pivot 52, and can rotate with respect to the correspondingupper rod 20 against asecond pivot 53. A distance between thefirst pivot 52 and the second connectingend 22 defines a first length. A distance between thesecond pivot 53 and the second connectingend 22 defines a second length. A distance between the first andsecond pivots - For instance, in the present embodiment, the second length is adjustable. The
first pivot 52 is located between two ends of thelower arm 31. Thesupport arm 51 is directly or indirectly connected to thelengthwise unit 23 of the correspondingupper rod 20. In other embodiments, the adjustable length is the first or third length. U.S. Pat. No. 4,058,066 is an example wherein the third length is adjustable. - Further referring to
FIGS. 3 and 4 , the second pitch-adjustingmechanism 50 also includes acontrol unit 54, which selectively makes thesupport arms 51 slide along thelengthwise units 23, thereby adjusting the second length. Preferably, thecontrol unit 54 is composed of aninner tube 55, anouter tube 56 and aknob 57. Theouter tube 56 is mounted around theinner tube 55. Additionally, in the present embodiment, the inner andouter tubes inner tube 55 has two inner throughholes 551, and theouter tube 56 has two outer throughholes 561. The two inner throughholes 551 are aligned with the two outer throughholes 561, respectively, so that theshank portions 24 can pass therethrough successively. Theknob 57 includes ahead 571 for a user to grasp, ascrew 572 and a pushingsurface 573 located between thehead 571 and thescrew 572. Thescrew 572 is partially screwed into one end of theinner tube 55 so that the pushingsurface 573 abuts against one end of theouter tube 56. Right rotation of thehead 571 of theknob 57 makes thescrew 572 and theinner tube 55 further engaged with each other, meaning that theinner tube 55 is drawn toward thehead 571, thereby giving the inner tube 55 a force to move in a first direction A. At the same time, as a result of the screwing in of theknob 57, the pushingsurface 573 pushes theouter tube 56 to move in a second direction B. As can be seen inFIG. 4 , the first and second directions A, B are opposite to each other. Such opposite movements of the inner andouter tubes hole 551 and outer throughhole 561. Thereby, the inner andouter tubes shank portions 24. On the contrary, left rotation of thehead 571 of theknob 57 releases theinner tube 55 from thescrew 572, making theinner tube 55 leave from thehead 571. As a result, the inner andouter tubes holes 551 and outer throughholes 561 are restored to their initial size, thereby allowing theshank portions 24 to move with respect thereto, and in turn allowing thesupport arms 51 to slide along thelengthwise units 23. - Referring to
FIG. 5 , the twoinserts 413 in the engaged state are retained by thedents 16 of the same height to fix the first included angle between theupper rods 20 and thelegs 11. - Referring to
FIG. 6 , for adjusting the first included angle, thelever 42 is turned outward to disengage theinserts 413 from thedents 16, or enter theinserts 413 into their disengaged state. At this time, theinserts 413 are free to slide along theslots 15, so that an operator standing in front of thetable board 30 can easily move thetable board 30 to any desired position by adjusting the first included angle. - Now please refer to
FIG. 7 . After thetable board 30 is posed as desired, thelever 42 is pushed inward to make theinserts 413 engage withdifferent dents 16. Alternatively, the operator can simply release thelever 42, and the returning means (i.e. the spring 48) will drive theinserts 413 back to the engaged state to fix the adjusted first included angle. - Referring to
FIG. 8 , the second included angle can be changed by making thesupport arms 51 slide along theshank portions 24. At this time, thetable board 30 rotates against the second connecting ends 22 and reaches a desired position. -
FIG. 9 illustrates a second embodiment of the present invention. Therein, thebase 10 may comprise a plurality ofperforated veneers 17, for covering the components and improving the appearance of the table. - With the configuration as described above, the present invention uses at least one adjustable joint to make the table board adjustable in pitch and height, and allows a user standing in front of the table board to easily make adjustment by operating the lever to disengage the inserts and then changing the first included angle. Thereby, the adjustment of the table board in pitch and height can be accomplished easily and rapidly, thereby satisfying the user's practical needs.
- The present invention has been described with reference to the preferred embodiments and it is understood that the embodiments are not intended to limit the scope of the present invention. Moreover, as the contents disclosed herein should be readily understood and can be implemented by a person skilled in the art, all equivalent changes or modifications which do not depart from the concept of the present invention should be encompassed by the appended claims.
Claims (7)
1. A table adjustable in height and pitch, the table comprising:
a base including a pair of legs, each said leg having a leg top and a slot that is formed with a plurality of dents, wherein the dents are separated and arranged abreast along a length of the slot;
a pair of upper rods, each having a first connecting end and a second connecting end, wherein the first connecting end of each said upper rod is pivotally connected to a corresponding said leg top, and the leg and the corresponding upper rod include a first included angle;
a table board that is connected to the second connecting ends; and
a first pitch-adjusting mechanism for adjusting the first included angle, the first pitch-adjusting mechanism comprising two positioning rods, a lever and a plurality of links, each said positioning rod having a pivotal end and a slotted end, the pivotal end being pivotally connected to the corresponding upper rod, the slotted end having an insert that extends transversely, the two inserts having an engaged state and a disengaged state, wherein in the engaged state, each of the inserts is retained by one said dent so that the first included angle is fixed, and in the disengaged state, the two inserts leave the dents and become slidable along the slots so as to change the first included angle, the lever swinging against a shaft that is supported by at least one said upper rod and is close to the second connecting end of the upper rod, and the links building kinetic connection between the positioning rods and the lever, so that when the lever is operated, the two inserts are switched between the engaged and disengaged states.
2. The table of claim 1 , wherein the shaft is rotatably connected between the two upper rods, and the links comprises a first transverse link, a second transverse link, a first vertical link and a second vertical link, the first transverse link connected between the pivotal ends of the two positioning rods, the second transverse link connected between the slotted ends of the two positioning rods, the first vertical link connected between the first and second transverse links, and the second vertical link connected between the first vertical link and the lever.
3. The table of claim 1 , further comprising a returning means that serves to make the two inserts return to the engaged state.
4. The table of any of claims 1 through 3, wherein the table board and the upper rods include a second included angle, and the table further comprises a second pitch-adjusting mechanism for adjusting the second included angle, wherein the second pitch-adjusting mechanism comprises two support arms, in which each said support arm is rotatable with respect to the table board against a first pivot, and is rotatable with respect to the corresponding upper rod against a second pivot, a distance between the first pivot and the second connecting end defining a first length, a distance between the second pivot and the second connecting end defining a second length, and a distance between the first and second pivots defining a third length, wherein one of the first, second and third lengths is adjustable.
5. The table of claim 4 , wherein the table board has two lower arms that are attached to a lower surface of the table board and aligned with the upper rods, respectively, in which the lower arm has one end pivotally connected to the second connecting end of the corresponding upper rod, and the first pivot is located between two ends of the lower arm.
6. The table of claim 5 , wherein the second pitch-adjusting mechanism comprises a control unit and at least one said upper rod has a lengthwise unit extending along a length of the upper rod, so that the support arm is connected to the lengthwise unit of the corresponding upper rod, and the control unit allows the support arm to slide with respect to the lengthwise unit, thereby changing the second length.
7. The table of claim 6 , wherein the lengthwise unit comprises a shank portion and the control unit comprises an inner tube, an outer tube and a knob, in which the outer tube is mounted around the inner tube, the inner tube having an inner through hole, the outer tube having an outer through hole, the inner through hole being aligned with the outer through hole, so as to allow the shank portion to pass therethrough successively, the knob having a head for a user to grasp, a screw partially screwed into one end of the inner tube, and a pushing surface that is formed between the head and the screw and abuts against one end of the outer tube, so that when the knob is operated to make the screw and the inner tube further engaged with each other, the inner tube is drawn to move in a first direction and the outer tube is pushed by the pushing surface toward a second direction that is opposite to the first direction, whereby the inner and outer tubes seize and in turn position the shank portions.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US13/442,936 US20130263762A1 (en) | 2012-04-10 | 2012-04-10 | Table adjustable in height and pitch |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US13/442,936 US20130263762A1 (en) | 2012-04-10 | 2012-04-10 | Table adjustable in height and pitch |
Publications (1)
Publication Number | Publication Date |
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US20130263762A1 true US20130263762A1 (en) | 2013-10-10 |
Family
ID=49291283
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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US13/442,936 Abandoned US20130263762A1 (en) | 2012-04-10 | 2012-04-10 | Table adjustable in height and pitch |
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US (1) | US20130263762A1 (en) |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20130182377A1 (en) * | 2012-01-18 | 2013-07-18 | Hannspree, Inc. | Electronic device having an adjustable angle support by engagement between resilient protrusions and recesses |
CN104957884A (en) * | 2015-06-18 | 2015-10-07 | 潘秀娟 | Tiltable bed desk |
CN105996440A (en) * | 2016-05-30 | 2016-10-12 | 衢州学院 | Multi-purpose office table |
US9635929B1 (en) * | 2016-03-07 | 2017-05-02 | Yao-Chuan Wu | Foldable table |
KR101744798B1 (en) * | 2016-06-30 | 2017-06-09 | 주식회사 주경 | Table Possible Height-adjustment and Angle-adjustment of upper-board |
USD795620S1 (en) * | 2015-01-21 | 2017-08-29 | Stirworks Inc. | Desk with feet |
USD795619S1 (en) * | 2015-01-21 | 2017-08-29 | Stirworks Inc. | Desk with legs |
US10039378B2 (en) * | 2016-11-23 | 2018-08-07 | Product Depot International Corp. | Adjustable table |
-
2012
- 2012-04-10 US US13/442,936 patent/US20130263762A1/en not_active Abandoned
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20130182377A1 (en) * | 2012-01-18 | 2013-07-18 | Hannspree, Inc. | Electronic device having an adjustable angle support by engagement between resilient protrusions and recesses |
USD795620S1 (en) * | 2015-01-21 | 2017-08-29 | Stirworks Inc. | Desk with feet |
USD795619S1 (en) * | 2015-01-21 | 2017-08-29 | Stirworks Inc. | Desk with legs |
CN104957884A (en) * | 2015-06-18 | 2015-10-07 | 潘秀娟 | Tiltable bed desk |
US9635929B1 (en) * | 2016-03-07 | 2017-05-02 | Yao-Chuan Wu | Foldable table |
CN105996440A (en) * | 2016-05-30 | 2016-10-12 | 衢州学院 | Multi-purpose office table |
KR101744798B1 (en) * | 2016-06-30 | 2017-06-09 | 주식회사 주경 | Table Possible Height-adjustment and Angle-adjustment of upper-board |
US10039378B2 (en) * | 2016-11-23 | 2018-08-07 | Product Depot International Corp. | Adjustable table |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
STCB | Information on status: application discontinuation |
Free format text: ABANDONED -- FAILURE TO PAY ISSUE FEE |