US3093172A - Anti-slip handle for manually operated tools - Google Patents
Anti-slip handle for manually operated tools Download PDFInfo
- Publication number
- US3093172A US3093172A US155591A US15559161A US3093172A US 3093172 A US3093172 A US 3093172A US 155591 A US155591 A US 155591A US 15559161 A US15559161 A US 15559161A US 3093172 A US3093172 A US 3093172A
- Authority
- US
- United States
- Prior art keywords
- handle
- hand
- manually operated
- tool
- operated tools
- 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
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
- B24C1/00—Methods for use of abrasive blasting for producing particular effects; Use of auxiliary equipment in connection with such methods
- B24C1/06—Methods for use of abrasive blasting for producing particular effects; Use of auxiliary equipment in connection with such methods for producing matt surfaces, e.g. on plastic materials, on glass
-
- 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
- B25G1/105—Handle constructions characterised by material or shape for screwdrivers, wrenches or spanners
-
- 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
-
- 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
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T74/00—Machine element or mechanism
- Y10T74/20—Control lever and linkage systems
- Y10T74/20576—Elements
- Y10T74/20732—Handles
- Y10T74/2078—Handle bars
- Y10T74/20828—Handholds and grips
Definitions
- FIG. 1 of the drawings is a side elevational view of a typical screwdriver handle before treatment to produce structure according to this invention, this figure also showing a part of the screwdriver tool;
- FIG. 2 is a View which is similar to FIG. 1 and shows, in addition, the treatment of the handle to produce structure according to this invention
- FIG. 3 is a view which is similar to FIG. 1 but shows a handle having the structure provided by this invention.
- This invention relates to tools and other devices which are provided with a handle or hand grip part which is engaged by the hand of the user for manual operation of the tool, and in the operation of which slipping can occur between the hand and the handle or hand grip part, particularly when the conditions of use require high torque to be transmitted to the tool.
- the invention will be described as applied to the handle of a screwdriver, but it will be understood that this description imposes no limitation on the tools or devices within the scope of the invention. 1
- the slipping which takes place between the hand of a user and the handle or hand grip part (hereinafter referred to by the generic term handle) in imparting turning or other motion to a tool is not only undesirable because of its eifect on the hand but also reduces the efiiciency of the hand-tool assembly by dissipating the force applied by the arm or other prime mover to the tool, thus reducing the effective torque applied to the work piece.
- FIG. 1 of the drawings there is illustrated the handle of a screwdriver and a part of the tool itself.
- This handle 2 is of conventional construction and material and is of generally cylindrical form having longitudinal external flutes or ridges 4.
- handles are often formed of a synthetic plastic material but may be formed of metal, hard rubber or other material. It may be said that the invention is useful with respect to handles "ice having any desired shape and formed of any suitable material with the exception of soft rubber and wood.
- a handle of the described construction and material is treated by subjecting it to shot peening or, as the process is often known, shot blasting.
- This process is well known in the cold working of metallic surfaces and need not be further described here.
- the method consists in subjecting the article to be treated to the impingement of a very large number of steel balls or shot traveling at very high velocity.
- FIG. 2 of the drawing shows this treatment and illustrates the shot 6 being impelled by a machine 8 onto the exterior surface of the handle 2.
- a tool handle which has been subjected to shot peening in accordance with this invention has the exterior surface shown in FIG. 3 of the drawings.
- This exterior surface, after shot peening, is formed by literally thousands of small gripping edges which are the intersections of innumerable indentations or craters formed by the imping- 7 ing shot. These edges combine to produce a roughened exterior surface and grip the hand and prevent it from slipping on the exterior surface of the handle as the hand imparts torque through the tool to the Work piece.
- the indentations formed by the impinging shoe receive sweat from the palm of the hand and remove it from the edges between the indentations which are engaged by the hand. A dry gripping surface is thus produced, reducing slippage between the hand and the handle and preventing or reducing the possibility of the formation of blisters on the hand. It has been found that the use of a handle according to this invention reduces the frequency of accidents and causes an increase in production.
- a handle for a manually operated turning tool said handle being shot-blasted to provide an exterior surface substantially covered by spaced outwardly extending curved edges of low height with respect to the diameter of the handle, each of the edges defining the intersection of crater-like indentations, such edges having an irregular patern providing a roughened gripping surface highly resistive to relative movement between the hand and the handle as the tool is turned.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Details Of Spanners, Wrenches, And Screw Drivers And Accessories (AREA)
Description
June 11, 1963 E. REED 2ND 3,093,172
ANTI-SLIP HANDLE FOR MANUALLY OPERATED TOOLS Filed Nov. 29, 1961 INVENTOR" EDGAR R1550, 2N0
ATTORNEYS United States Patent 3,093,172 ANTI-SLIP HANDLE FGR MANUALLY OPERATED TOOLS Edgar Reed 2nd, 24 Butternut Hill Road, Worcester, Mass. Filed Nov. 29, 1961, Ser. No. 155,591 1. Claim. ((31. 14561) Description of the Drawings FIG. 1 of the drawings is a side elevational view of a typical screwdriver handle before treatment to produce structure according to this invention, this figure also showing a part of the screwdriver tool;
FIG. 2 is a View which is similar to FIG. 1 and shows, in addition, the treatment of the handle to produce structure according to this invention, and
FIG. 3 is a view which is similar to FIG. 1 but shows a handle having the structure provided by this invention.
Specification .This invention relates to tools and other devices which are provided with a handle or hand grip part which is engaged by the hand of the user for manual operation of the tool, and in the operation of which slipping can occur between the hand and the handle or hand grip part, particularly when the conditions of use require high torque to be transmitted to the tool. In this specification the invention will be described as applied to the handle of a screwdriver, but it will be understood that this description imposes no limitation on the tools or devices within the scope of the invention. 1
The slipping which takes place between the hand of a user and the handle or hand grip part (hereinafter referred to by the generic term handle) in imparting turning or other motion to a tool is not only undesirable because of its eifect on the hand but also reduces the efiiciency of the hand-tool assembly by dissipating the force applied by the arm or other prime mover to the tool, thus reducing the effective torque applied to the work piece.
It has therefore been the principal object of this invention to provide a handle for a manually operated tool which is so treated, and therefore so constructed, that slippage which may be produced between the hand and the handle is reduced to a minimum, and the friction which may be produced between the hand the handle is increased to a maximum, particularly when high torque must be imparted to the tool.
In FIG. 1 of the drawings there is illustrated the handle of a screwdriver and a part of the tool itself. This handle 2 is of conventional construction and material and is of generally cylindrical form having longitudinal external flutes or ridges 4. In modern usage such handles are often formed of a synthetic plastic material but may be formed of metal, hard rubber or other material. It may be said that the invention is useful with respect to handles "ice having any desired shape and formed of any suitable material with the exception of soft rubber and wood.
In accordance with the invention a handle of the described construction and material is treated by subjecting it to shot peening or, as the process is often known, shot blasting. This process is well known in the cold working of metallic surfaces and need not be further described here. Sutlice it to say that the method consists in subjecting the article to be treated to the impingement of a very large number of steel balls or shot traveling at very high velocity. FIG. 2 of the drawing shows this treatment and illustrates the shot 6 being impelled by a machine 8 onto the exterior surface of the handle 2.
A tool handle which has been subjected to shot peening in accordance With this invention has the exterior surface shown in FIG. 3 of the drawings. This exterior surface, after shot peening, is formed by literally thousands of small gripping edges which are the intersections of innumerable indentations or craters formed by the imping- 7 ing shot. These edges combine to produce a roughened exterior surface and grip the hand and prevent it from slipping on the exterior surface of the handle as the hand imparts torque through the tool to the Work piece.
In addition, the indentations formed by the impinging shoe receive sweat from the palm of the hand and remove it from the edges between the indentations which are engaged by the hand. A dry gripping surface is thus produced, reducing slippage between the hand and the handle and preventing or reducing the possibility of the formation of blisters on the hand. It has been found that the use of a handle according to this invention reduces the frequency of accidents and causes an increase in production.
My invention is set forth in the appended claim.
vWhat is claimed is:
A handle for a manually operated turning tool, said handle being shot-blasted to provide an exterior surface substantially covered by spaced outwardly extending curved edges of low height with respect to the diameter of the handle, each of the edges defining the intersection of crater-like indentations, such edges having an irregular patern providing a roughened gripping surface highly resistive to relative movement between the hand and the handle as the tool is turned.
References Cited in the file of this patent UNITED STATES PATENTS 1,470,100 Porter Oct. 9, 1923 1,660,537 ,Waskom Feb. 28, 1928 1,860,561 Warner May 31, 1932 2,328,869 NVilkie Sept. 7, 1943 2,436,928 Kempe Mar. 2, 1948 2,977,668 Maness Apr. 4, 1961
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US155591A US3093172A (en) | 1961-11-29 | 1961-11-29 | Anti-slip handle for manually operated tools |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US155591A US3093172A (en) | 1961-11-29 | 1961-11-29 | Anti-slip handle for manually operated tools |
Publications (1)
Publication Number | Publication Date |
---|---|
US3093172A true US3093172A (en) | 1963-06-11 |
Family
ID=22556038
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US155591A Expired - Lifetime US3093172A (en) | 1961-11-29 | 1961-11-29 | Anti-slip handle for manually operated tools |
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US (1) | US3093172A (en) |
Cited By (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3211199A (en) * | 1963-10-09 | 1965-10-12 | D Edgar Reed | Bit end of tool for driving screw fasteners |
DE3301202C1 (en) * | 1983-01-15 | 1984-03-15 | Felo Holland-Letz GmbH & Co KG, 3577 Neustadt | Tool handle made of plastic by injection molding |
US4702006A (en) * | 1986-04-25 | 1987-10-27 | Mccullough Timothy J | Handle for the handpiece of a meat trimming knife |
US5007831A (en) * | 1988-05-16 | 1991-04-16 | Siemens Aktiengesellschaft | Dental handpiece comprising a grip part |
EP0597216A1 (en) * | 1992-11-04 | 1994-05-18 | WILLI HAHN GmbH & CO. KG | Hand-operated screwdriver |
ES2076885A2 (en) * | 1993-02-15 | 1995-11-01 | Witte Stephan Gmbh Co Kg | Handgrip for a tool and method of making same |
FR2722720A1 (en) * | 1994-07-22 | 1996-01-26 | Stihl Maschf Andreas | METALLIC TUBE FORMING HANDLE FOR A MANUALLY GUIDED WORKING INSTRUMENT SUCH AS A CHAINSAW |
US5535484A (en) * | 1993-10-05 | 1996-07-16 | Gibson; Jeremy H. | Utensil handle |
US5540623A (en) * | 1995-02-16 | 1996-07-30 | Symonds; Danny K. | Bowling thumb hole tape tool |
USD381567S (en) * | 1995-11-07 | 1997-07-29 | Kaiser Michael C | Ratchet box wrench |
EP1101572A1 (en) * | 1999-11-15 | 2001-05-23 | Bobby Hu | Method for processing a hand tool |
US6295903B1 (en) * | 2000-03-22 | 2001-10-02 | The Stanley Works | Screwdriver and method for making same |
US6629338B2 (en) * | 2000-01-19 | 2003-10-07 | Adolf Wuerth Gmbh & Co. Kg | Handle for a tool |
US20040195475A1 (en) * | 2003-04-03 | 2004-10-07 | Felsenthal Sandy A. | Foldable stand stabilizer device |
US20080092337A1 (en) * | 2006-09-15 | 2008-04-24 | Gross James R | Ergonomic handle |
US20080196562A1 (en) * | 2007-02-16 | 2008-08-21 | Asif Elliston | Nut driver and method of making the same |
US20110286781A1 (en) * | 2008-12-19 | 2011-11-24 | Stabilo International Gmbh | Pen or pencil |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1470100A (en) * | 1920-09-23 | 1923-10-09 | White S Dental Mfg Co | Tool handle |
US1660537A (en) * | 1922-12-13 | 1928-02-28 | Waskom Clark | Handle for screw drivers or similar tools |
US1860561A (en) * | 1930-07-26 | 1932-05-31 | Stanley Works | Handgrip |
US2328869A (en) * | 1941-07-05 | 1943-09-07 | Doall Co Inc | Saw band and method of lubricating the same |
US2436928A (en) * | 1944-09-02 | 1948-03-02 | Thompson Prod Inc | Method of and apparatus for making poppet valves |
US2977668A (en) * | 1958-03-03 | 1961-04-04 | Norman B Maness | Tool holder |
-
1961
- 1961-11-29 US US155591A patent/US3093172A/en not_active Expired - Lifetime
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1470100A (en) * | 1920-09-23 | 1923-10-09 | White S Dental Mfg Co | Tool handle |
US1660537A (en) * | 1922-12-13 | 1928-02-28 | Waskom Clark | Handle for screw drivers or similar tools |
US1860561A (en) * | 1930-07-26 | 1932-05-31 | Stanley Works | Handgrip |
US2328869A (en) * | 1941-07-05 | 1943-09-07 | Doall Co Inc | Saw band and method of lubricating the same |
US2436928A (en) * | 1944-09-02 | 1948-03-02 | Thompson Prod Inc | Method of and apparatus for making poppet valves |
US2977668A (en) * | 1958-03-03 | 1961-04-04 | Norman B Maness | Tool holder |
Cited By (21)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3211199A (en) * | 1963-10-09 | 1965-10-12 | D Edgar Reed | Bit end of tool for driving screw fasteners |
DE3301202C1 (en) * | 1983-01-15 | 1984-03-15 | Felo Holland-Letz GmbH & Co KG, 3577 Neustadt | Tool handle made of plastic by injection molding |
US4702006A (en) * | 1986-04-25 | 1987-10-27 | Mccullough Timothy J | Handle for the handpiece of a meat trimming knife |
US5007831A (en) * | 1988-05-16 | 1991-04-16 | Siemens Aktiengesellschaft | Dental handpiece comprising a grip part |
EP0597216A1 (en) * | 1992-11-04 | 1994-05-18 | WILLI HAHN GmbH & CO. KG | Hand-operated screwdriver |
AT403896B (en) * | 1993-02-15 | 1998-06-25 | Witte Stephan Gmbh Co Kg | HANDLE FOR DEVICES |
ES2076885A2 (en) * | 1993-02-15 | 1995-11-01 | Witte Stephan Gmbh Co Kg | Handgrip for a tool and method of making same |
US5535484A (en) * | 1993-10-05 | 1996-07-16 | Gibson; Jeremy H. | Utensil handle |
FR2722720A1 (en) * | 1994-07-22 | 1996-01-26 | Stihl Maschf Andreas | METALLIC TUBE FORMING HANDLE FOR A MANUALLY GUIDED WORKING INSTRUMENT SUCH AS A CHAINSAW |
US5540623A (en) * | 1995-02-16 | 1996-07-30 | Symonds; Danny K. | Bowling thumb hole tape tool |
USD381567S (en) * | 1995-11-07 | 1997-07-29 | Kaiser Michael C | Ratchet box wrench |
US6647834B2 (en) * | 1999-11-15 | 2003-11-18 | Bobby Hu | Method for processing a hand tool |
EP1101572A1 (en) * | 1999-11-15 | 2001-05-23 | Bobby Hu | Method for processing a hand tool |
US6629338B2 (en) * | 2000-01-19 | 2003-10-07 | Adolf Wuerth Gmbh & Co. Kg | Handle for a tool |
US6295903B1 (en) * | 2000-03-22 | 2001-10-02 | The Stanley Works | Screwdriver and method for making same |
US20040195475A1 (en) * | 2003-04-03 | 2004-10-07 | Felsenthal Sandy A. | Foldable stand stabilizer device |
US6886789B2 (en) | 2003-04-03 | 2005-05-03 | Sandy A. Felsenthal | Foldable stand stabilizer device |
US20080092337A1 (en) * | 2006-09-15 | 2008-04-24 | Gross James R | Ergonomic handle |
US20080196562A1 (en) * | 2007-02-16 | 2008-08-21 | Asif Elliston | Nut driver and method of making the same |
US20110286781A1 (en) * | 2008-12-19 | 2011-11-24 | Stabilo International Gmbh | Pen or pencil |
US8770880B2 (en) * | 2008-12-19 | 2014-07-08 | Stabilo International Gmbh | Pen or pencil |
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