EP0460176A1 - Improved composite wrench. - Google Patents
Improved composite wrench.Info
- Publication number
- EP0460176A1 EP0460176A1 EP91901824A EP91901824A EP0460176A1 EP 0460176 A1 EP0460176 A1 EP 0460176A1 EP 91901824 A EP91901824 A EP 91901824A EP 91901824 A EP91901824 A EP 91901824A EP 0460176 A1 EP0460176 A1 EP 0460176A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- handle
- tightening
- heads
- key
- planes
- 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.)
- Granted
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B13/00—Spanners; Wrenches
- B25B13/02—Spanners; Wrenches with rigid jaws
- B25B13/08—Spanners; Wrenches with rigid jaws of open jaw type
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B13/00—Spanners; Wrenches
- B25B13/02—Spanners; Wrenches with rigid jaws
- B25B13/04—Spanners; Wrenches with rigid jaws of ring jaw type
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B23/00—Details of, or accessories for, spanners, wrenches, screwdrivers
- B25B23/16—Handles
-
- 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
Definitions
- the invention relates to a perfected composite wrench, that is to say made of plastic material and the clamping heads of which include an embedded metal insert, forming a jaw or clamping jaw.
- this invention can perfectly be adapted to traditional steel keys.
- the keys obtained are not satisfactory, on the one hand, because said inserts tend to turn in the head, and on the other hand, the resistance of the keys is often little different from that of the plastic handle, which considerably limits its use, and in any event is below the floor of the industrial standards currently in force.
- the invention aims at an improved key of the type in question, that is to say made of plastic material advantageously loaded with glass fibers, and having metal inserts at the level of the heads to play the role of jaws or jaws.
- tightening which is easy to manufacture and above all, does not have the drawbacks described above, in particular in terms of resistance. More specifically, the invention relates to an improved tightening wrench which is light, and whose size is comparable to the corresponding metallic keys currently existing.
- This improved tightening wrench is constituted by a handle having at each of its ends a tightening head in the shape of an open fork, an eye or a socket of polygonal section, the two tightening heads being arranged in two distinct planes, not parallel ⁇ , and each extending by a coplanar portion forming part of the handle.
- the invention consists in making a non-planar key, the two heads of said key being in two different planes extending at the level of the handle, in order to define a handle that is also not planar, each of the planar parts playing the role of beam for the other, resulting in a significant increase in the resistance of this handle, in particular to bending.
- the angle defined by the two planes is between 90 "and 170 '.
- this angle was greater than 170 °, therefore approaching a configuration of the flat key type, we found the incon ⁇ disadvantages inherent in this configuration, namely the uneasy handling on the one hand, and on the other hand a relatively large size of the handle, due to the composite structure, unsuitable for certain uses;
- this angle was less than 90 ′, the configuration obtained does not bring much interest, because if indeed the congestion remains reduced, the grip and the actuation of the key are not facilitated; - the two heads are in the form of a fixed, even mobile, open fork;
- the keys are made of reinforced plastic material made of glass fibers, and have at the level of the two heads a metal insert forming a jaw or clamping jaw;
- Each of the heads has at its base a clearance, intended to ensure better grip of the key, and thus better performance, taking into account that the force which can be imparted to the key is greater; moreover, this clearance makes it possible to offer greater angular movement, in accordance with the standards in force;
- the handle has a longitudinal lumen, crossed by the secant defined by the intersection of the two planes and located in the vicinity of the middle of said handle, parallel to its two longitudinal edges. This light is intended to allow easier storage of keys;
- the handle has on one of its principal faces a relief, and on the opposite face a corresponding recess, intended to allow the storage of keys by stacking or even clipping one on the other.
- Figure 1 is a perspective view of a com ⁇ posite key according to the invention.
- Figure 2 is a cross section of this key made at its center.
- Figure 3 is a perspective view of another embodiment of the key according to the invention.
- FIG. 4 is a cross section of the key shown in FIG. 3.
- the composite tightening key (1) basically consists of a handle (2) having at its two ends a tightening head (3) and ( 4).
- these clamping heads are open forks (5) and (6).
- the clamping heads (3) and (4) comprise, in known manner, a metal insert embedded in the plastic material constituting the assembly formed by the key (1).
- this plastic material is reinforced with glass fibers in order to give it more resistance and rigidity.
- the two heads (3) and (4) are located in two different planes and not parallel.
- the heads (3) and (4) each have a coplanar extension (10) and (11), constituting by assembly together the handle itself.
- the two planes of the two heads (3) and (4) intersect at the level of the handle (2) along a secant line (12) extending sensiblemen over the entire length of the handle (2), and more exactly along its diagonal.
- the handle obtained is not planar but bi-plane, thus defining an angle ⁇ .
- each of the extensions respectively (10) e (11) exerts on the other and vice versa a role of beam, thus significantly increasing the resistance of the handle (2).
- each of the heads (3,4) has at its base a clearance respectively (8,9), symmetrical with each other relative to the center of the key, allowing a grip and more effective action on the key when significant efforts are applied to it.
- these clearances make it possible to increase the angular movement of the key.
- the handle (2) has at its center, and parallel to its two lateral edges, a longitudinal lumen (7), crossed by the secant (12), and intended to allow the storage of a plurality of keys of the type in question.
- the keys having, by construction, a V-shaped section, and are encased during storage, one on the other and on a projection or a tenon passing through the lumen (7) of each of the keys.
- one of the main faces of the handle (2) has a projection, located towards the center of said handle.
- the opposite face of the handle (2) has a correspondingly shaped recess, also located towards the center of the handle.
- These original keys can be produced by folding, cutting, injection, compression or any other suitable technique known for this type of application.
- the keys described are light and insulating.
- in the long run there are no cracking phenomena or detachment phenomena from the insert of the clamping head.
- they have performances comparable to the corresponding metallic keys, taking into account the increase in resistance and rigidity of the handle by beam effect from one part of the handle to the other.
- the ergonomics are optimized, making these keys for gripping much easier, especially when the user has greasy fingers.
Abstract
Cette clé de serrage perfectionnée en matière plastique, est constituée par un manche (2) présentant à chacune de ses extrémités une tête de serrage (3, 4) en forme de fourche ouverte, d'oeil ou de douille à section polygonale. Les deux têtes de serrage (3) et (4) sont disposées dans deux plans distincts, non parallèles, et se prolongent au niveau du manche (2) par deux portions coplanaires (10) et (11), constitutives de tout ou partie du manche propement dit.This improved plastic spanner consists of a handle (2) having at each of its ends a clamping head (3, 4) in the form of an open fork, an eye or a socket with a polygonal section. The two clamping heads (3) and (4) are arranged in two distinct, non-parallel planes, and are extended at the level of the handle (2) by two coplanar portions (10) and (11), constituting all or part of the handle properly speaking.
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT9191901824T ATE105222T1 (en) | 1989-12-22 | 1990-12-21 | COMPOSITE WRENCH. |
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR8917396A FR2656248B1 (en) | 1989-12-22 | 1989-12-22 | COMPOSITE IMPROVED TIGHTENING WRENCH. |
FR8917396 | 1989-12-22 | ||
PCT/FR1990/000936 WO1991009708A1 (en) | 1989-12-22 | 1990-12-21 | Improved composite wrench |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0460176A1 true EP0460176A1 (en) | 1991-12-11 |
EP0460176B1 EP0460176B1 (en) | 1994-05-04 |
Family
ID=9389110
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP91901824A Expired - Lifetime EP0460176B1 (en) | 1989-12-22 | 1990-12-21 | Improved composite wrench |
Country Status (8)
Country | Link |
---|---|
US (1) | US5172614A (en) |
EP (1) | EP0460176B1 (en) |
JP (1) | JP2962577B2 (en) |
CA (1) | CA2045570C (en) |
DE (1) | DE69008715T2 (en) |
ES (1) | ES2052366T3 (en) |
FR (1) | FR2656248B1 (en) |
WO (1) | WO1991009708A1 (en) |
Families Citing this family (25)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE9115517U1 (en) * | 1991-12-14 | 1992-04-23 | Friedr. Dick Gmbh, 7300 Esslingen, De | |
US5970826A (en) * | 1996-08-16 | 1999-10-26 | Snap-On Technologies, Inc. | Composite socket with double inserts |
US6318216B1 (en) | 1997-05-07 | 2001-11-20 | Snap-On Technologies, Inc. | Composite box wrench with reinforcing and retaining structure |
DE29804709U1 (en) * | 1998-03-16 | 1998-05-14 | Hsieh Chih Ching | Wrench handle |
US6006633A (en) * | 1998-07-08 | 1999-12-28 | The Stanley Works | Pliers (1) |
US5996450A (en) * | 1998-07-15 | 1999-12-07 | The Stanley Works | Pliers (2) |
USD434292S (en) * | 1999-08-20 | 2000-11-28 | Chih-Ching Hsieh | Wrench |
US6552663B2 (en) * | 2000-02-16 | 2003-04-22 | Display Edge Technology, Ltd. | Product information display system with expanded retail display functions |
US6408723B1 (en) | 2000-07-28 | 2002-06-25 | Snap-On Technologies, Inc. | Insulating composite shaft tool with interchangeable heads and method of construction thereof |
JP4504530B2 (en) * | 2000-08-07 | 2010-07-14 | 住友ゴム工業株式会社 | Valve core turning jig |
US6655239B1 (en) | 2002-08-22 | 2003-12-02 | Richard J. Macor | Double-ended wrench with ergonomic handle |
US6792833B2 (en) | 2002-08-22 | 2004-09-21 | Proprietary Technologies, Inc. | Double-ended wrench with ergonomic handle portions |
US20050000328A1 (en) * | 2003-07-03 | 2005-01-06 | Chih-Ching Hsien | Twisted handle for hand tools |
US6895837B2 (en) * | 2003-07-17 | 2005-05-24 | Chih-Ching Hsien | Wrench structure having a strengthened handle |
US6920811B2 (en) * | 2003-08-08 | 2005-07-26 | Chih-Ching Hsien | Bent wrench having torque measurement function |
US7017455B2 (en) * | 2004-03-11 | 2006-03-28 | Chih-Ching Hsien | Handle of a hand tool |
US7062978B1 (en) * | 2005-06-07 | 2006-06-20 | Chih-Ching Hsien | Hand tool with strain gauges |
WO2008115491A1 (en) * | 2007-03-22 | 2008-09-25 | Black & Decker Inc. | Device and method for changing tool bit in a power tool |
US7607372B2 (en) * | 2007-05-16 | 2009-10-27 | Proxene Tools Co., Ltd. | Method for making a wrench |
CN102310372A (en) * | 2010-07-08 | 2012-01-11 | 鑫爵实业股份有限公司 | Wrench structure |
US8485072B2 (en) * | 2011-06-23 | 2013-07-16 | Alan Hamilton Swing | Quasi open-end wrench |
WO2014028779A1 (en) * | 2012-08-15 | 2014-02-20 | Ragner Gary Dean | Folding multiwrenches |
JP5889370B1 (en) * | 2014-08-07 | 2016-03-22 | 将 阪口 | Gas cutter crater |
USD850744S1 (en) | 2018-02-19 | 2019-06-04 | Tti (Macao Commercial Offshore) Limited | Hand tool |
TWI802232B (en) * | 2021-03-04 | 2023-05-11 | 優鋼機械股份有限公司 | Hand tool |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1793714A (en) * | 1928-04-14 | 1931-02-24 | Newberg Emil | Duplex wrench |
US2083131A (en) * | 1935-07-30 | 1937-06-08 | J P Danielson Co Inc | Wrench set holder |
FR1010953A (en) * | 1947-12-18 | 1952-06-17 | Werkzeugfabrik Agmo | Nut wrench sets |
US2909954A (en) * | 1958-02-03 | 1959-10-27 | Rhoads Stanley | Plastic open end wrench |
US3298260A (en) * | 1965-10-12 | 1967-01-17 | Jr Lee M Rothenberg | Sheet metal tool |
DE1973393U (en) * | 1967-09-26 | 1967-11-23 | Hazet Werk Zerver Hermann | WRENCH. |
GB1251419A (en) * | 1969-06-17 | 1971-10-27 | ||
US4738169A (en) * | 1985-12-19 | 1988-04-19 | Artesian Industries | Wrench |
-
1989
- 1989-12-22 FR FR8917396A patent/FR2656248B1/en not_active Expired - Fee Related
-
1990
- 1990-12-21 JP JP3502250A patent/JP2962577B2/en not_active Expired - Fee Related
- 1990-12-21 DE DE69008715T patent/DE69008715T2/en not_active Expired - Fee Related
- 1990-12-21 ES ES91901824T patent/ES2052366T3/en not_active Expired - Lifetime
- 1990-12-21 US US07/730,822 patent/US5172614A/en not_active Expired - Fee Related
- 1990-12-21 CA CA002045570A patent/CA2045570C/en not_active Expired - Fee Related
- 1990-12-21 WO PCT/FR1990/000936 patent/WO1991009708A1/en active IP Right Grant
- 1990-12-21 EP EP91901824A patent/EP0460176B1/en not_active Expired - Lifetime
Non-Patent Citations (1)
Title |
---|
See references of WO9109708A1 * |
Also Published As
Publication number | Publication date |
---|---|
WO1991009708A1 (en) | 1991-07-11 |
DE69008715T2 (en) | 1994-08-18 |
CA2045570A1 (en) | 1991-06-23 |
FR2656248B1 (en) | 1994-05-27 |
CA2045570C (en) | 1999-04-20 |
DE69008715D1 (en) | 1994-06-09 |
JPH04504684A (en) | 1992-08-20 |
FR2656248A1 (en) | 1991-06-28 |
ES2052366T3 (en) | 1994-07-01 |
EP0460176B1 (en) | 1994-05-04 |
JP2962577B2 (en) | 1999-10-12 |
US5172614A (en) | 1992-12-22 |
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