CA2219251C - Soft grip handle - Google Patents
Soft grip handle Download PDFInfo
- Publication number
- CA2219251C CA2219251C CA002219251A CA2219251A CA2219251C CA 2219251 C CA2219251 C CA 2219251C CA 002219251 A CA002219251 A CA 002219251A CA 2219251 A CA2219251 A CA 2219251A CA 2219251 C CA2219251 C CA 2219251C
- Authority
- CA
- Canada
- Prior art keywords
- handle
- inner core
- outer grip
- extension pole
- grip
- 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.)
- Expired - Lifetime
Links
- 239000000463 material Substances 0.000 claims abstract description 23
- 239000003973 paint Substances 0.000 claims abstract description 12
- 239000004033 plastic Substances 0.000 claims abstract description 10
- 238000007373 indentation Methods 0.000 claims description 8
- 210000003813 thumb Anatomy 0.000 claims description 5
- 210000003811 finger Anatomy 0.000 claims description 4
- 239000012815 thermoplastic material Substances 0.000 claims description 4
- 229920001169 thermoplastic Polymers 0.000 claims description 3
- 239000004416 thermosoftening plastic Substances 0.000 claims description 3
- 239000004743 Polypropylene Substances 0.000 claims description 2
- 230000000694 effects Effects 0.000 claims description 2
- -1 polypropylene Polymers 0.000 claims description 2
- 229920001155 polypropylene Polymers 0.000 claims description 2
- 239000002904 solvent Substances 0.000 claims description 2
- 229920002725 thermoplastic elastomer Polymers 0.000 claims description 2
- 230000008901 benefit Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000004075 alteration Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 229920001971 elastomer Polymers 0.000 description 1
- 239000000806 elastomer Substances 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 229920003031 santoprene Polymers 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25G—HANDLES FOR HAND IMPLEMENTS
- B25G1/00—Handle constructions
- B25G1/04—Handle constructions telescopic; extensible; sectional
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C17/00—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces
- B05C17/02—Rollers ; Hand tools comprising coating rollers or coating endless belts
- B05C17/0205—Rollers ; Hand tools comprising coating rollers or coating endless belts characterised by the handle, e.g. handle shape or material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25G—HANDLES FOR HAND IMPLEMENTS
- B25G1/00—Handle constructions
- B25G1/10—Handle constructions characterised by material or shape
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B2200/00—Constructional details of connections not covered for in other groups of this subclass
- F16B2200/60—Coupler sealing means
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S16/00—Miscellaneous hardware, e.g. bushing, carpet fastener, caster, door closer, panel hanger, attachable or adjunct handle, hinge, window sash balance
- Y10S16/12—Hand grips, preformed and semi-permanent
Abstract
A handle for a paint roller frame includes an inner core made of a substantially rigid plastic material and an outer grip made of a softer rubber-like material surrounding the inner core and extending part way around both ends thereof. At the outer end of the inner core is an internally threaded opening surrounded by a planar end wall. The outer grip includes an outer end portion overlying the planar end wall which acts like a locking washer, resisting unscrewing of an extension pole from the threaded opening when the extension pole is screwed down tight and a flange at a base of the extension pole threads comes into contact with the outer end portion of the outer grip overlying the planar end wall.
Description
. , ~ , CA 02219251 1997-10-23 TITLE: SOFT GRIP HANDLE
FIELD OF THE INVENTION
i his invet~fic~rfretates ~eneraiiy to a handle for a paint roiier or other hand tool having an outer grip made of a soft rubber-like material.
BA~OUND OF THE INVENTION
It is generally known to provide handles for different types of hand tools with an inner core of a substantially rigid plastic material to give the handle the required strength and rigidity for supporting the tool during use and an outer grip of a softer thermoplastic rubber-like mati,rial to give the handle a softer feel and more comfortable gripability. A common way of making such a handle is to overmold the outer grip onto the inner core, However,oftentime~the o~~ter~r~P IS o_n_lymc~ld~da~ro~r~d~ortian~
of the inner core, leaving arE:as of the inner core exposed. This gives the undesirable appearance that the outer grip is a separate piece l:hat is slid onto the inner core rather than integrally molded thereto. Indeed, if the material of the outer grip is not chemically compatible with the: material of the inner core, or if the outer grip is not molded around the inner core at a sufficiently high temperature to cause a thermobond to take place between the outer grip and iinner core, the outer grip may be susceptible to being pulled or peeled off the inner core.
It is also generally known to mold the outer grip completely around and into an opening in the outer end of the inner core to preclude any tendency of the outer grip from becoming dislodged laterally v~~ith respect to the inner core. However, this has the disadvantage that it does not permit a threaded opening to be provided in the outer end of the inner core for threaded engagement by an extension pole or the like.
i SUMMARY OF THE INVENTION
The present invention relates to a handle for a paint roller or other hand tool which includes an inner core made of a substantially rigid plastic material and an outer grip made of a softer thermoplastic rubber-like material substantially completely covering the inner core.
In accordance with a broad aspect, the invention provides a handle for a paint roller frame or other hand tool comprising an inner core made of a substantially rigid plastic material, said core having an internally threaded opening at an outer end for threaded engagement by an extension pole, said internally threaded opening being surrounded by a planar end wall, and an outer grip made of a softer rubber-like material covering said inner core and including an outer end portion overlying said planar end wall to act as a locking washer, resisting unscrewing of the extension pole from said threaded opening when the extension pole is screwed down tight and a flange at a base of extension pole threads comes infio contact with said outer end portion of said outer grip overlying said planar end wall.
In accordance with another broad aspect, the invention provides in combination, a hand tool having a handle connected to said hand tool at one end of said handle, an internally threaded opening at another end of said handle surrounded by a planar end wall, and an extension pole having a threaded tip for threaded engagement in said threaded opening, said handle comprising an inner core made of a substantially rigid plastic material, and an outer grip made of a softer rubber-like material surrounding said inner core and including an outer end portion overlying said planar end wall to act as a locking washer, resisting unscrewing of said extension pole from said threaded opening when said extension pole is screwed down tight and a flange at a base of the extension pole threads comes into contact with said outer end portion of said outer grip overlying said planar end wall.
FIELD OF THE INVENTION
i his invet~fic~rfretates ~eneraiiy to a handle for a paint roiier or other hand tool having an outer grip made of a soft rubber-like material.
BA~OUND OF THE INVENTION
It is generally known to provide handles for different types of hand tools with an inner core of a substantially rigid plastic material to give the handle the required strength and rigidity for supporting the tool during use and an outer grip of a softer thermoplastic rubber-like mati,rial to give the handle a softer feel and more comfortable gripability. A common way of making such a handle is to overmold the outer grip onto the inner core, However,oftentime~the o~~ter~r~P IS o_n_lymc~ld~da~ro~r~d~ortian~
of the inner core, leaving arE:as of the inner core exposed. This gives the undesirable appearance that the outer grip is a separate piece l:hat is slid onto the inner core rather than integrally molded thereto. Indeed, if the material of the outer grip is not chemically compatible with the: material of the inner core, or if the outer grip is not molded around the inner core at a sufficiently high temperature to cause a thermobond to take place between the outer grip and iinner core, the outer grip may be susceptible to being pulled or peeled off the inner core.
It is also generally known to mold the outer grip completely around and into an opening in the outer end of the inner core to preclude any tendency of the outer grip from becoming dislodged laterally v~~ith respect to the inner core. However, this has the disadvantage that it does not permit a threaded opening to be provided in the outer end of the inner core for threaded engagement by an extension pole or the like.
i SUMMARY OF THE INVENTION
The present invention relates to a handle for a paint roller or other hand tool which includes an inner core made of a substantially rigid plastic material and an outer grip made of a softer thermoplastic rubber-like material substantially completely covering the inner core.
In accordance with a broad aspect, the invention provides a handle for a paint roller frame or other hand tool comprising an inner core made of a substantially rigid plastic material, said core having an internally threaded opening at an outer end for threaded engagement by an extension pole, said internally threaded opening being surrounded by a planar end wall, and an outer grip made of a softer rubber-like material covering said inner core and including an outer end portion overlying said planar end wall to act as a locking washer, resisting unscrewing of the extension pole from said threaded opening when the extension pole is screwed down tight and a flange at a base of extension pole threads comes infio contact with said outer end portion of said outer grip overlying said planar end wall.
In accordance with another broad aspect, the invention provides in combination, a hand tool having a handle connected to said hand tool at one end of said handle, an internally threaded opening at another end of said handle surrounded by a planar end wall, and an extension pole having a threaded tip for threaded engagement in said threaded opening, said handle comprising an inner core made of a substantially rigid plastic material, and an outer grip made of a softer rubber-like material surrounding said inner core and including an outer end portion overlying said planar end wall to act as a locking washer, resisting unscrewing of said extension pole from said threaded opening when said extension pole is screwed down tight and a flange at a base of the extension pole threads comes into contact with said outer end portion of said outer grip overlying said planar end wall.
In accordance with another broad aspect, the invention provides a handle for a paint roller or other hand tool comprising an inner core made of a substantially rigid plastic material having an inner end adapted to be mounted on a hand tool and an outer end adapted to be attached to an extension pole, and an outer grip made of a softer rubber-like material surrounding said inner core and extending partway around both ends of said inner core.
In accordance with one aspect of the invention, the outer grip extends substantially the entire length of the inner core and part way around both ends of the inner core to securely retain the outer grip on the inner core.
In accordance With another aspect of the invention, the inner core includes a threaded opening in the outer end thereof surrounded by a planar end wall over which an end portion of the outer grip extends, acting as a locking washer, resisting unscrewing of an extension pole from the threaded opening when the extension pole is screwed down tight in the threaded opening and a flange at the base of the extension pole threads comes into contact with the end portion of the outer grip surrounding the threaded opening.
In accordance with another aspect of the invention, the handle is contoured to provide generally rounded top and bottom surfaces extending over substantially the entire length of the handle, with circumferentially extending ribs formed in the outer grip surrounding the rounded surfaces including rounded concave thumb rests adjacent the inner end of the handle to provide increased frictional contact when gripped by the user's hand.
In accordance with another aspect of the invention, the sides of the outer grip have substantially flat, smooth parallel surfaces for engagement by the palm and fingers of the user's hand.
In accordance with another aspect of the invention, relatively small recesses or indentations in the shape of a design or logo may be formed in the flat surfaces of the outer grip.
,, , CA 02219251 1997-10-23 In accordance with another aspect of the invention, the recesses or indentations in the flat surfaces of the outer grip may extend all the way through the outer grip to expose corresponding flat surfaces of the inner core therebeneath which may be of a different color than the outer grip to provide a two-tone evffect.
These and other aspects, advantages and features of thn present invention will become apparent as the following description proceeds.
To the accomplishment of the foregoing and related ends, the invention, then, comprises tL~e features hereinafter fully described and particularly pointed out in the claims, the following description and the annexed drawings setting forth in detail a certain illustrative ennbodiment of the invention, this being indicative, however, of but one of l:he various ways in which the principles; of the invention may be employed.
BRIEF DESCRIPTION OF THE DRAWINGS
In the annexed drawings:
Fig. 1 is a perspective: view of a paint roller frame including a soft grip handle made in accordance with the present invention;
Fig. 2 is an enlarged side elevation view of the handle o~f Fig. 1;
Fig. 3 is a longitudinal section through the handle of Fig. 2, taken generally on the plane of the; line 3-3 thereof, showing relatively small recesses or indentations in the shape of a design or logo extending part way through the outer grip;
Fig. 4 is a fragmentary longitudinal section through the handle, similar to Fig. 3, but showing the recesses or indentations as comprising openings extending all the ~nray through the outer grip, exposing the outer surface of the inner core the;rebeneath;
Fig. 5 is an enlarged l:op plan view of the handle of Fig. 1; and Fig. 6 is a longitudinal section through the handle of Fig. 5, taken generally on the plane of thf; line 5-5 thereof, and showing the. tip of an extension pole threaded into the outer end of the handle.
In accordance with one aspect of the invention, the outer grip extends substantially the entire length of the inner core and part way around both ends of the inner core to securely retain the outer grip on the inner core.
In accordance With another aspect of the invention, the inner core includes a threaded opening in the outer end thereof surrounded by a planar end wall over which an end portion of the outer grip extends, acting as a locking washer, resisting unscrewing of an extension pole from the threaded opening when the extension pole is screwed down tight in the threaded opening and a flange at the base of the extension pole threads comes into contact with the end portion of the outer grip surrounding the threaded opening.
In accordance with another aspect of the invention, the handle is contoured to provide generally rounded top and bottom surfaces extending over substantially the entire length of the handle, with circumferentially extending ribs formed in the outer grip surrounding the rounded surfaces including rounded concave thumb rests adjacent the inner end of the handle to provide increased frictional contact when gripped by the user's hand.
In accordance with another aspect of the invention, the sides of the outer grip have substantially flat, smooth parallel surfaces for engagement by the palm and fingers of the user's hand.
In accordance with another aspect of the invention, relatively small recesses or indentations in the shape of a design or logo may be formed in the flat surfaces of the outer grip.
,, , CA 02219251 1997-10-23 In accordance with another aspect of the invention, the recesses or indentations in the flat surfaces of the outer grip may extend all the way through the outer grip to expose corresponding flat surfaces of the inner core therebeneath which may be of a different color than the outer grip to provide a two-tone evffect.
These and other aspects, advantages and features of thn present invention will become apparent as the following description proceeds.
To the accomplishment of the foregoing and related ends, the invention, then, comprises tL~e features hereinafter fully described and particularly pointed out in the claims, the following description and the annexed drawings setting forth in detail a certain illustrative ennbodiment of the invention, this being indicative, however, of but one of l:he various ways in which the principles; of the invention may be employed.
BRIEF DESCRIPTION OF THE DRAWINGS
In the annexed drawings:
Fig. 1 is a perspective: view of a paint roller frame including a soft grip handle made in accordance with the present invention;
Fig. 2 is an enlarged side elevation view of the handle o~f Fig. 1;
Fig. 3 is a longitudinal section through the handle of Fig. 2, taken generally on the plane of the; line 3-3 thereof, showing relatively small recesses or indentations in the shape of a design or logo extending part way through the outer grip;
Fig. 4 is a fragmentary longitudinal section through the handle, similar to Fig. 3, but showing the recesses or indentations as comprising openings extending all the ~nray through the outer grip, exposing the outer surface of the inner core the;rebeneath;
Fig. 5 is an enlarged l:op plan view of the handle of Fig. 1; and Fig. 6 is a longitudinal section through the handle of Fig. 5, taken generally on the plane of thf; line 5-5 thereof, and showing the. tip of an extension pole threaded into the outer end of the handle.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT
Referring now in detail to the drawings, and initially to Fig. 1, a preferred form of handle 1 in accordance with this invention is shown with its inner end 2 press fitted onto the outer end 3 of a heavy gauge wire or shank 4 of a paint roller frame 5 or other hand tool. At the outer end 6 of the handle 1 is an internally threaded bore 7 to which the tip 8 of an extension pole 9 may be threadedly connected thereto (see Fig. 6).
As best seen in Figs. 3 and 6, the handle 1 includes an inner core molded out of a suitably rigid plastic material. If the tool is a paint 10 applicator, the inner core 10 is preferably made of polypropylene or other thermoplastic material that will not degrade when exposed to paint solvents and the like. During the molding process, the internal threads 7 may be molded as an integral part of the inner core 10. Alternatively, a separate insert containing an internally threaded bore may be snap fitted into the premolded inner core, similar to U.S. Patent 5,288,161 assigned to the same assignee of the present application.
The inner core 10 has a substantially smooth outer surface 1 1 and is preferably formed into a suitable ergonomic shape including rounded top and bottom sides 12 and 13 extending substantially the entire length of the handle including rounded concave thumb rests 14 and 15 adjacent the inner end of the handle, and substantially flat parallel surfaces 16 and 17 on opposite sides 18 and 19 of the handle for easy engagement by the palm and fingers of the user's hand.
To provide the handle 1 with a softer feel and more comfortable gripability by the user's hand, an outer grip 20 of a relatively soft thermoplastic elastomer material made, for example, by Advanced Elastomers Corp. under the brand name/trademark SANTOPRENE, is overmolded around the inner core 10. The outer grip 20 extends substantially the entire length of the inner core 10 and part way around both end walls 21 and 22, leaving exposed the bore 23 in the inner end wall 21 in which the shank 4 of the tool frame 5 is press fitted and the threaded bore 7 in the planar outer end wall 22 in which the extension pole tip 8 is threaded. This has the advantage that the outer drip 20 will be securely retained on the inner core 10 without the need for a chemical bond therebetween. Thus, 'the outer grip 20 can be overmoldE;d over the inner core 10 at lower temperatures and hence faster cycles than would otherwise be possible if a chemical bond had to be formed between the outer grip and inner core.
Another benefit in molding the outer grip 20 around the planar outer end wall 22 of the inner core 10 surrounding the threaded opening 7 is that the end portion 24 of the outer grip 20 overlying such planar outer end wall will act as a .locking washer, resisting unscrewing of the extension pole 9 from the threaded opening when the extension pole is screwed down tight and a fllange 25 at the base of the extension pole threads 26 comes into contract with the end portion 24 of the outer grip as schematically shown in Fig. 6.
The thickness of the outer grip 20 is desirably substantially uniform over substantially the entire length and at the ends of the inner core 10. However, during the overmolding process, thicker axially spaced, circumferentially extending ribs 30 are desirably formed in the outer grip 20 on the rounded surfaces of the handle 1 including the rounded top and bottom sides 12 and 13 and concave thumb rests 14 and 15 adjacent the inner end of the handle to provide increased frictional contact when gripped by the user's hand.
Also, relatively small recesses or indentations 31, 32 in the shape of a design or a logo may bE: formed in the flat external surfaces 16' and 17' of the outer grip 20 during the overmolding process. In Figs. 2 and 3 the recesses or indentations 31, 32 are shown extending only part way through the outer grip 20, ~n~hereas in Fig. 4 the recesses or indentations 31 ', 32' are openings extending completely through the outer grip 20 to expose portions of the outer surface 33 of the inner core 10 ~ , , CA 02219251 1997-10-23 therebeneath. Also, the inner core 10 may be made of a different color than the outer grip 20 to provide a two-tone effect where the outer surface 33 of the inner core 10 is exposed through the openings 31', 32' in the outer grip 20 as schematically illustrated in Fig. 4.
Although the invention has been shown and described uvith respect to a certain preferred embodiment, it is obvious that equivalent alterations and modification, will occur to others skilled in the art upon the reading and understanding of the specification. The present invention includes all such equivalent alterations and modifications, and is limited only by the scope of the claims.
Referring now in detail to the drawings, and initially to Fig. 1, a preferred form of handle 1 in accordance with this invention is shown with its inner end 2 press fitted onto the outer end 3 of a heavy gauge wire or shank 4 of a paint roller frame 5 or other hand tool. At the outer end 6 of the handle 1 is an internally threaded bore 7 to which the tip 8 of an extension pole 9 may be threadedly connected thereto (see Fig. 6).
As best seen in Figs. 3 and 6, the handle 1 includes an inner core molded out of a suitably rigid plastic material. If the tool is a paint 10 applicator, the inner core 10 is preferably made of polypropylene or other thermoplastic material that will not degrade when exposed to paint solvents and the like. During the molding process, the internal threads 7 may be molded as an integral part of the inner core 10. Alternatively, a separate insert containing an internally threaded bore may be snap fitted into the premolded inner core, similar to U.S. Patent 5,288,161 assigned to the same assignee of the present application.
The inner core 10 has a substantially smooth outer surface 1 1 and is preferably formed into a suitable ergonomic shape including rounded top and bottom sides 12 and 13 extending substantially the entire length of the handle including rounded concave thumb rests 14 and 15 adjacent the inner end of the handle, and substantially flat parallel surfaces 16 and 17 on opposite sides 18 and 19 of the handle for easy engagement by the palm and fingers of the user's hand.
To provide the handle 1 with a softer feel and more comfortable gripability by the user's hand, an outer grip 20 of a relatively soft thermoplastic elastomer material made, for example, by Advanced Elastomers Corp. under the brand name/trademark SANTOPRENE, is overmolded around the inner core 10. The outer grip 20 extends substantially the entire length of the inner core 10 and part way around both end walls 21 and 22, leaving exposed the bore 23 in the inner end wall 21 in which the shank 4 of the tool frame 5 is press fitted and the threaded bore 7 in the planar outer end wall 22 in which the extension pole tip 8 is threaded. This has the advantage that the outer drip 20 will be securely retained on the inner core 10 without the need for a chemical bond therebetween. Thus, 'the outer grip 20 can be overmoldE;d over the inner core 10 at lower temperatures and hence faster cycles than would otherwise be possible if a chemical bond had to be formed between the outer grip and inner core.
Another benefit in molding the outer grip 20 around the planar outer end wall 22 of the inner core 10 surrounding the threaded opening 7 is that the end portion 24 of the outer grip 20 overlying such planar outer end wall will act as a .locking washer, resisting unscrewing of the extension pole 9 from the threaded opening when the extension pole is screwed down tight and a fllange 25 at the base of the extension pole threads 26 comes into contract with the end portion 24 of the outer grip as schematically shown in Fig. 6.
The thickness of the outer grip 20 is desirably substantially uniform over substantially the entire length and at the ends of the inner core 10. However, during the overmolding process, thicker axially spaced, circumferentially extending ribs 30 are desirably formed in the outer grip 20 on the rounded surfaces of the handle 1 including the rounded top and bottom sides 12 and 13 and concave thumb rests 14 and 15 adjacent the inner end of the handle to provide increased frictional contact when gripped by the user's hand.
Also, relatively small recesses or indentations 31, 32 in the shape of a design or a logo may bE: formed in the flat external surfaces 16' and 17' of the outer grip 20 during the overmolding process. In Figs. 2 and 3 the recesses or indentations 31, 32 are shown extending only part way through the outer grip 20, ~n~hereas in Fig. 4 the recesses or indentations 31 ', 32' are openings extending completely through the outer grip 20 to expose portions of the outer surface 33 of the inner core 10 ~ , , CA 02219251 1997-10-23 therebeneath. Also, the inner core 10 may be made of a different color than the outer grip 20 to provide a two-tone effect where the outer surface 33 of the inner core 10 is exposed through the openings 31', 32' in the outer grip 20 as schematically illustrated in Fig. 4.
Although the invention has been shown and described uvith respect to a certain preferred embodiment, it is obvious that equivalent alterations and modification, will occur to others skilled in the art upon the reading and understanding of the specification. The present invention includes all such equivalent alterations and modifications, and is limited only by the scope of the claims.
Claims (20)
1. ~A handle for a paint roller frame or other hand tool comprising an inner core made of a substantially rigid plastic material, said core having an internally threaded opening at an outer end for threaded engagement by an extension pole, said internally threaded opening being surrounded by a planar end wall, and an outer grip made of a softer rubber-like material covering said inner core and including an outer end portion overlying said planar end wall to act as a locking washer, resisting unscrewing of the extension pole from said threaded opening when the extension pole is screwed down tight and a flange at a base of extension pole threads comes into contact with said outer end portion of said outer grip overlying said planar end wall.
2. ~The handle of claim 1 wherein said inner core has an inner end wall containing a bore in which a shank portion of the hand tool is received, said outer grip including an inner end portion overlying said inner end wall.
3. ~The handle of claim 1 which has contoured generally rounded top and bottom surfaces extending substantially the entire length of said handle, and axially spaced, circumferentially extending ribs formed in said outer grip on said rounded surfaces to provide increased frictional contact when gripped by a user's hand.
4. ~The handle of claim 3 further comprising rounded concave thumb rests adjacent an inner end of said handle, said thumb rests also including axially spaced, circumferentially extending ribs formed in said outer grip.
5. ~The handle of claim 3 further comprising substantially flat, smooth parallel surfaces on sides of said handle intermediate said rounded top and bottom surfaces for engagement by the palm and fingers of the user's hand.
6. ~The handle of claim 5 wherein said inner core has a substantially smooth, uninterrupted outer surface, and said outer grip has an exterior surface containing a relatively small recess or indentation in the shape of a design or logo that extends partway through said outer grip on one or both of said flat surfaces of said handle.
7. ~The handle of claim 5 wherein said inner core has a substantially smooth, uninterrupted outer surface, and said outer grip has an exterior surface containing a relatively small opening in the shape of a design or logo that extends completely through said outer grip on one or both of said flat surfaces of said handle to expose said outer surface of said inner core inwardly of said opening.
8. ~The handle of claim 7 wherein said inner core is of a different color than said outer grip to provide a two-tone effect where said outer surface of said inner core is visible through said opening in said outer grip.
9. ~The handle of claim 7 wherein the surface of said outer grip through which said opening extends and the underlying surface of said inner core exposed through said opening in said outer grip are substantially flat, smooth parallel surfaces.
10. ~The handle of claim 1 wherein said inner core has a substantially smooth, uninterrupted exterior surface, and said outer grip is formed with a plurality of axially spaced, circumferentially extending ribs along the axial extent of said handle to provide increased frictional contact when gripped by a user's hand.
8~
8~
11. The handle of claim 1 wherein said inner core is made of a thermoplastic material which is resistant to paint solvents.
12. The handle of claim 11 wherein said thermoplastic material is polypropylene.
13. The handle of claim 1 wherein said outer grip is made of a thermoplastic rubber.
14. In combination, a hand tool having a handle connected to said hand tool at one end of said handle, an internally threaded opening at another end of said handle surrounded by a planar end wall, and an extension pole having a threaded tip for threaded engagement in said threaded opening, said handle comprising an inner core made of a substantially rigid plastic material, and an outer grip made of a softer rubber-like material surrounding said inner core and including an outer end portion overlying said planar end wall to act as a locking washer, resisting unscrewing of said extension pole from said threaded opening when said extension pole is screwed down tight and a flange at a base of the extension pole threads comes into contact with said outer end portion of said outer grip overlying said planar end wall.
15. The combination of claim 14 wherein said outer grip also includes an inner end portion overlying one end of said inner core.
16. The combination of claim 15 wherein said inner core is made of a thermoplastic material, and said outer grip is made of a thermoplastic rubber-like material.
17. The combination of claim 14 wherein said handle has contoured generally rounded top and bottom surfaces extending substantially the entire length of said handle, and axially spaced, circumferentially extending ribs formed in said outer grip on said rounded surfaces to provide increased frictional contact when gripped by a user's hand.
18. The combination of claim 17 wherein said outer grip includes oppositely facing sides intermediate said rounded top and bottom surfaces having substantially flat smooth parallel surfaces for engagement by the palm and fingers of a user's hand.
19. A handle for a paint roller or other hand tool comprising an inner core made of a substantially rigid plastic material having an inner end adapted to be mounted on a hand tool and an outer end adapted to be attached to an extension pale, and an outer grip made of a softer rubber-like material surrounding said inner core and extending partway around both ends of said inner core.
20. The handle of claim 19 wherein said outer end of said inner core has an internally threaded opening surrounded by a planar end wall, said outer grip extending partway around said outer end overlying said planar end wall to act as a locking washer, resisting unscrewing of an extension pole from said threaded opening when the extension pole is screwed down tight and a flange at a base of the extension pole threads comes into contact with said outer end portion of said outer grip overlying said planar end wall.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US08/801,009 US5857241A (en) | 1997-02-19 | 1997-02-19 | Soft grip handle |
| US08/801,009 | 1997-02-19 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2219251A1 CA2219251A1 (en) | 1998-08-19 |
| CA2219251C true CA2219251C (en) | 2005-12-27 |
Family
ID=25179951
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002219251A Expired - Lifetime CA2219251C (en) | 1997-02-19 | 1997-10-23 | Soft grip handle |
Country Status (2)
| Country | Link |
|---|---|
| US (1) | US5857241A (en) |
| CA (1) | CA2219251C (en) |
Families Citing this family (52)
| Publication number | Priority date | Publication date | Assignee | Title |
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| US6027151A (en) * | 1997-12-03 | 2000-02-22 | Mcnab; Kathleen | Utensil holder |
| US6308378B1 (en) | 1999-06-01 | 2001-10-30 | Porter-Cable Corporation | Frictional gripping arrangement for a power tool handle |
| FR2798306B1 (en) * | 1999-09-13 | 2002-05-24 | Franpin | PAINTING DEVICE WITH IMPROVED ROLL FIXING MEANS |
| US6375227B1 (en) | 1999-11-01 | 2002-04-23 | Patrick J. Brenner | Lateral displacement assist collar for hose coupler |
| US6349451B1 (en) * | 2000-01-28 | 2002-02-26 | Robert D. Newman/Specialty Products Of Greenwood, Missouri, Inc. | Universal tool handle configured for various extension pole connectors |
| US6347426B1 (en) | 2000-03-09 | 2002-02-19 | Sherman L. Weiss | Paint roller retainer |
| US6349450B1 (en) | 2000-06-20 | 2002-02-26 | Donnelly Corporation | Vehicle door handle |
| US6446309B1 (en) | 2000-09-11 | 2002-09-10 | Deweese Frank M. | Caulk gun handle cushion system |
| US6499175B1 (en) * | 2000-09-18 | 2002-12-31 | Scott Osiecki | Combination scrub brush |
| US6805207B2 (en) * | 2001-01-23 | 2004-10-19 | Black & Decker Inc. | Housing with functional overmold |
| US6418820B1 (en) * | 2001-03-23 | 2002-07-16 | Wki Holding Company Inc. | Ergonomic handle for a wrench |
| US6405619B1 (en) * | 2001-03-23 | 2002-06-18 | Wki Holding Company, Inc. | Self-securing tool handle |
| WO2003029049A2 (en) | 2001-10-01 | 2003-04-10 | Donnelly Corporation | Vehicle handle assembly with antenna |
| CA2400847A1 (en) | 2002-08-30 | 2004-02-29 | Palliser Furniture Ltd. | Furniture handle |
| US20040147346A1 (en) * | 2003-01-24 | 2004-07-29 | Casasanta Joseph G. | Grip for a hockey stick with a hollow-ended shaft |
| US7377859B2 (en) * | 2003-05-05 | 2008-05-27 | Underscore Golf Llc | Decorative grip and method for making |
| US7174599B2 (en) * | 2003-06-19 | 2007-02-13 | Stiles Ronnie J | Ergonomic shielding tool for processing a surface |
| US20050115023A1 (en) * | 2003-12-01 | 2005-06-02 | Jack Lin | Tricolored handle structure for screwdriver |
| US20050197219A1 (en) * | 2004-03-08 | 2005-09-08 | Casasanta Joseph G.Jr. | System and method for making a customized cushioned grip on a handle |
| US7407203B2 (en) * | 2004-08-18 | 2008-08-05 | Donnelly Corporation | Vehicle door handle |
| US20060102638A1 (en) * | 2004-11-18 | 2006-05-18 | Glenn Summerfield | Gripping sleeve |
| US7401384B2 (en) * | 2005-09-30 | 2008-07-22 | Xiamen Jundian House Omaments Co., Ltd. | Pliable handle |
| US20070113380A1 (en) * | 2005-11-22 | 2007-05-24 | Youth Lee | Umbrella handle (III) |
| US20070154254A1 (en) * | 2006-01-03 | 2007-07-05 | Bevirt Joeben | Mounting apparatus using ball and socket joints with gripping features |
| US20080283697A1 (en) * | 2007-04-27 | 2008-11-20 | Richard Darrow | Apparatuses and systems for supporting and positioning cameras and other equipment |
| US20080263800A1 (en) * | 2007-04-27 | 2008-10-30 | Dan Ray Frazier | Mini roller cleaner |
| US8197149B2 (en) * | 2007-04-27 | 2012-06-12 | Tocad America, Inc. | Apparatuses and systems for supporting and positioning cameras and other equipment |
| US20090039213A1 (en) * | 2007-04-27 | 2009-02-12 | Richard Darrow | Apparatuses and systems for supporting and positioning cameras and other equipment |
| US20100088855A1 (en) * | 2008-10-14 | 2010-04-15 | Magna Mirrors Of America, Inc. | Vehicle door handle assembly |
| US8927083B2 (en) * | 2009-01-19 | 2015-01-06 | Mack Molding Company | Handle and method of fabricating a handle for a medical device |
| USD613005S1 (en) * | 2009-02-20 | 2010-03-30 | Han Lien International Corp. | Grip for pet comb |
| US8786401B2 (en) | 2009-12-23 | 2014-07-22 | Magna Mirrors Of America, Inc. | Extendable flush door handle for vehicle |
| US20120082509A1 (en) * | 2010-05-02 | 2012-04-05 | Brian Belcher | Interface devices and methods of using the same |
| US20130264791A1 (en) | 2012-01-24 | 2013-10-10 | Brandon Handel | Hand rim for propelling a wheelchair |
| US20140007363A1 (en) * | 2012-07-05 | 2014-01-09 | Mario KOVARIK | Apparatus for cleaning paint mini roller covers |
| US9321239B2 (en) * | 2012-09-26 | 2016-04-26 | Eastman Kodak Company | Direct laser-engraveable patternable elements and uses |
| USD744242S1 (en) | 2014-03-25 | 2015-12-01 | Unger Marketing International, Llc | Brush handle |
| USD744243S1 (en) | 2014-03-25 | 2015-12-01 | Unger Marketing International, Llc | Brush handle |
| USD778068S1 (en) | 2014-03-25 | 2017-02-07 | Unger Marketing International, Llc | Brush handle |
| USD754976S1 (en) | 2014-03-25 | 2016-05-03 | Unger Marketing International, Llc | Brush handle |
| USD744760S1 (en) | 2014-03-25 | 2015-12-08 | Unger Marketing International, Llc | Brush handle |
| USD743702S1 (en) | 2014-03-25 | 2015-11-24 | Unger Marketing International, Llc | Brush handle |
| US10827822B2 (en) | 2014-03-25 | 2020-11-10 | Unger Marketing International, Llc | Cleaning devices having feedback between different cleaning states |
| USD743703S1 (en) | 2014-03-25 | 2015-11-24 | Unger Marketing International, Llc | Brush handle |
| USD830126S1 (en) | 2016-08-03 | 2018-10-09 | Jeffrey T. Rohe | Travel mug |
| USD830127S1 (en) | 2016-09-07 | 2018-10-09 | Jeffrey T. Rohe | Travel mug |
| USD830066S1 (en) | 2017-01-31 | 2018-10-09 | Unger Marketing International, LLP | Brush handle |
| USD830067S1 (en) | 2017-01-31 | 2018-10-09 | Unger Marketing International, LLP | Brush handle |
| USD830065S1 (en) | 2017-01-31 | 2018-10-09 | Unger Marketing International, LLP | Brush handle |
| USD830128S1 (en) | 2017-04-07 | 2018-10-09 | Retail Resource Group, LLC | Travel mug |
| US10569697B2 (en) | 2017-10-10 | 2020-02-25 | Magna Mirrors Of America, Inc. | Vehicle door handle assembly with light module |
| US11453339B2 (en) | 2019-05-15 | 2022-09-27 | Magna Mirrors Of America, Inc. | Interior rearview mirror assembly with multifunction light pipe |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2426315A (en) * | 1943-09-25 | 1947-08-26 | Us Rubber Co | Static free brush |
| US2701379A (en) * | 1951-11-01 | 1955-02-08 | Mildred D Balistreri | Handle grip |
| US3008167A (en) * | 1958-02-25 | 1961-11-14 | Painter Corp E Z | Flexible paint roller |
| US2871899A (en) * | 1958-04-16 | 1959-02-03 | Bridgeport Hardware Mfg Corp | Tool handles |
| US3462202A (en) * | 1968-01-10 | 1969-08-19 | Bestt Rollr Inc | Handle for paint roller |
| US3716433A (en) * | 1970-09-18 | 1973-02-13 | Plummer Walter A | Method of equipping a tool handle or hand grip with a tough adherent protective layer with enhanced gripping properties |
| US3972528A (en) * | 1975-02-14 | 1976-08-03 | Pepsico Inc. | Baseball bat grip |
| US4285096A (en) * | 1978-10-02 | 1981-08-25 | Theron A. Van Putten | Indestructible handle for mop or broom and method of making same |
| US4452289A (en) * | 1981-12-28 | 1984-06-05 | Fiskars Manufacturing Corporation | Combination hand grip and bits storage |
| US4788022A (en) * | 1985-02-22 | 1988-11-29 | Bridgestone Corp. | Method of manufacturing waterproof nuts |
| US5134008A (en) * | 1988-04-07 | 1992-07-28 | Scanalma Ab | Covers for handles and the like |
| US4969268A (en) * | 1989-02-13 | 1990-11-13 | The Kelly Company, Inc. | Kitchen utensil |
| USRE34194E (en) * | 1990-03-26 | 1993-03-16 | Oxo International L.P. | Universal handle for hand-held implement |
| DE4038598C1 (en) * | 1990-12-04 | 1991-11-28 | Klaus 7312 Kirchheim De Lenhart | |
| US5107590A (en) * | 1991-03-26 | 1992-04-28 | Warner-Lambert Company | Razor handle |
| US5226198A (en) * | 1992-06-30 | 1993-07-13 | Purdy Corporation | Paint roller extension pole with coupling |
| US5297887A (en) * | 1992-08-21 | 1994-03-29 | Williams Stephen R | Injection-molded receiver |
| GB2274615A (en) * | 1993-01-29 | 1994-08-03 | Moss Prod Pty Ltd | Moulded plastic handle and method of its manufacture |
| US5502864A (en) * | 1993-02-25 | 1996-04-02 | Newell Operating Company | Paint applicator with improved extensible handle |
| US5327612A (en) * | 1993-03-02 | 1994-07-12 | Marshalltown Trowel Company | Plastic molded trowel handle having fingerguard and palm grip |
| US5522111A (en) * | 1993-03-02 | 1996-06-04 | Marshalltown Trowel Company | Finishing trowel handle |
| US5390572A (en) * | 1993-07-27 | 1995-02-21 | Vermont American Corporation | Tool with immproved impact and torque capabilities and having ergonomic handle |
-
1997
- 1997-02-19 US US08/801,009 patent/US5857241A/en not_active Expired - Lifetime
- 1997-10-23 CA CA002219251A patent/CA2219251C/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| US5857241A (en) | 1999-01-12 |
| MX9708814A (en) | 1998-08-30 |
| CA2219251A1 (en) | 1998-08-19 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| MKEX | Expiry |
Effective date: 20171023 |