EP0421107B1 - Pince - Google Patents
Pince Download PDFInfo
- Publication number
- EP0421107B1 EP0421107B1 EP90116136A EP90116136A EP0421107B1 EP 0421107 B1 EP0421107 B1 EP 0421107B1 EP 90116136 A EP90116136 A EP 90116136A EP 90116136 A EP90116136 A EP 90116136A EP 0421107 B1 EP0421107 B1 EP 0421107B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- gripper
- pliers
- jaw
- movable
- wrench
- 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
Images
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
- B25B7/00—Pliers; Other hand-held gripping tools with jaws on pivoted limbs; Details applicable generally to pivoted-limb hand tools
- B25B7/12—Pliers; Other hand-held gripping tools with jaws on pivoted limbs; Details applicable generally to pivoted-limb hand tools involving special transmission means between the handles and the jaws, e.g. toggle levers, gears
-
- 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
- B25B7/00—Pliers; Other hand-held gripping tools with jaws on pivoted limbs; Details applicable generally to pivoted-limb hand tools
- B25B7/06—Joints
- B25B7/10—Joints with adjustable fulcrum
Definitions
- the invention relates to key pliers according to the features of the upper handle of claim 1.
- a pair of key pliers as is basically affected here, is known from US Pat. No. 3,534,641, the movable jaw partially engaging around the fixed leg and being displaceable in a straight line thereon.
- the movable pliers leg is rotatably mounted in a recess of the fixed leg provided with a toothing only on the side facing the pliers mouth by means of a pivot pin.
- the pivot pin extends through a window of a mounting plate of the movable jaw that grips around the fixed leg on one side, this mounting plate being assigned to the side of the fixed leg that is opposite the movable pliers leg.
- the pliers leg forms a stop surface at the end opposite the handle part, in the region of the axis of rotation.
- the coarse longitudinal adjustment of the forceps jaw takes place in that the movable jaw by means of the on an inner wall of the pivot bearing on the window. Due to the fact that the pivot is mounted in a window of the movable jaw, this has a play that is compensated for by the resistance of the workpiece to be gripped when the jaws are closed. Furthermore, these key pliers have no limit stop in the opening direction. The open position of the key pliers is therefore not defined. Opening it too far can even result in loss of engagement from the engagement tooth into the toothing of the recess. This means that the opening width of the jaws can be changed unintentionally. Safe handling of the key pliers is not guaranteed in this embodiment.
- a water pump pliers which consists of two intersecting arranged pliers legs.
- the hinge pin is guided in a bore in the pliers leg and can be displaced transversely to the longitudinal plane of the pliers against spring loading.
- the hinge pin engages in a form-fitting manner with the profiled flanks of a longitudinal slot of the other pliers leg located in the intersection area.
- the procedure is such that the force transmission point designed as a form-fitting engagement between the jaw-side arm of the movable pliers leg and the movable pliers jaw is the connection point both for the coarse longitudinal adjustment and for closing the jaws between the pliers leg and the movable jaw.
- the positive engagement between the movable pliers leg and the movable pliers jaw is thus maintained in every operating position.
- the movable jaw is moved towards the fixed jaw via the force transmission point.
- the same connection point between the movable pliers leg and the movable pliers jaw also serves to roughly adjust the key pliers.
- the position of the movable jaw is independent of the previously set opening width of the jaws, directly dependent on the position of the movable pliers leg.
- the guide of the movable pliers jaw is designed as a free space next to the longitudinal slot guide, in which free space, which is a guide groove, a guide section of the movable pliers jaw projects.
- the guide section is designed as a frame. However, it is also conceivable to form the free space as a slot and the guide section as a bolt. This configuration of the guidance of the movable jaws proves to be an essential advantage in terms of handling.
- the key pliers can thus be made relatively slim, taking into account that there is always a safe guidance of the movable jaw.
- the force transmission point acts essentially in the area of the free space both in the coarse longitudinal adjustment and in the closing of the pliers jaws.
- the main force component extends approximately in the axial direction of the free space and thus in the direction of movement of the movable pliers jaw when the movable jaw is displaced. This prevents the movable jaw from tilting within the area of the free space.
- Another advantage of this embodiment is the fact that the force transmission point is arranged in the immediate vicinity of the jaws. A torque of the movable pliers jaw that occurs under load is thus reduced to a minimum.
- the movable jaw is caught essentially free of play beyond the axis of rotation over the entire pivoting path of a set opening width under a stop limitation on both sides by the engaging tooth of the movable jaw leg adjacent stop surfaces.
- the positive connection between the movable jaw and the pliers leg is realized by a hinge arrangement, wherein a hinge pin arranged on the end of the pliers leg opposite the handle part and beyond its axis of rotation engages in a joint recess of the movable jaw essentially without play.
- a limit stop in the open or The closed position of the pliers takes place by respective support of a stop surface adjacent to the hinge pin and likewise formed on the pliers limb on the support surface of the movable jaw which is associated with this and adjacent to the hinge shape. This also prevents fingers from jamming between the fixed leg and the pliers leg.
- the two legs can with one Do not touch actuation in system.
- a stop shoulder is formed on the movable jaw with a lateral distance to a substantially U-shaped recess receiving the engagement tooth, which protrudes downward over a lower edge of the movable jaw running on both sides of the recess. This training offers improved support of the movable pliers leg in the open position.
- the movable jaw is fork-shaped and is guided in outer grooves of the fixed leg running parallel to the row of teeth. This counteracts tilting of the movable jaw and ensures optimal guidance of this movable jaw.
- Improved handling is further achieved in that the pliers leg is fork-shaped and an engagement tooth is formed on both sides, which engages in each case a recess in the movable jaw.
- the force is not, as in the previously described prior art, supplied on one side, decentrally to the central axis of the movable jaw of this movable jaw, but on both sides, symmetrically to the central axis, which causes the movable jaw to tilt about its longitudinal axis and thus tilt is avoided.
- the power transmission from the movable pliers leg to the movable jaw is optimally solved due to this design.
- the row of teeth for changing the opening width of the jaws is formed on both sides on a recess.
- the central axes of the recess and the guide groove diverge in the closing direction of the pliers mouth.
- the movable jaw When the movable jaw is moved in the closing direction of the jaws of the pliers, there is a certain amount of migration of the pivot pin downward out of the joint recess. The consequence of this is that the pliers legs can be moved further towards one another in the closed position. Conversely, when moving the movable jaw in the opening direction of the pliers mouth, the pliers legs can be moved less far towards one another in the closed position. This ensures that the distance between the lower ends of the pliers legs is approximately maintained in the two extreme positions of the movable jaw, but the angle between the pliers legs changes.
- the key pliers 1 of all exemplary embodiments have a movable pliers leg 2 and a fixed leg 3, which merges into a bearing plate 4 in the same material.
- This has a recess 5, which is profiled sawtooth-like on its parallel longitudinal flanks 6.
- Above the recess 5 and parallel to it are in the bearing plate 4 two free spaces 7, each machined on the outer surfaces, which run symmetrically to the key-pin central axis xx.
- a thicker material in comparison to the bearing plate 4) fixed jaw 8 is arranged symmetrically to the axis xx.
- This fixed jaw 8 is opposite a movable jaw 9, which is designed to be essentially symmetrical with respect to the fixed jaw 8.
- the movable jaw 9 forms in its lower region two cantilevers 10 which rest on the surfaces of the bearing plate 4 and overlap them in their upper region.
- the arms 10 On the inner sides facing the bearing plate 4, the arms 10 have guide sections 11, each of which forms a guide for the movable jaw 9 with one of the free spaces.
- the guide sections 11 are formed continuously.
- a guide section 11 is therefore also provided in the region of the joint recess 15.
- the joint recess 15 correspondingly extends over the thickness of the jaw as such, while the guide strip 11 is also formed underneath (see, for example, FIG. 4).
- such a jaw can be worked from the solid, for example forged. However, it is currently preferred to solder the guide bar 11, for example.
- the continuous guide strip 11 also improves the strength: the jaw 9 is considerably stiffer in the critical cross section. The neutral phase under bending stress is shifted.
- the free spaces 7 are continuous, over the entire length or width of the jaw 9.
- stop shoulders 13 are arranged on the arms. With a lateral distance to the stop shoulders 13 10 joint recesses 15 are provided in the arms, which are substantially U-shaped. They serve to receive pivot pins 16 of the movable pliers leg 2. This is fork-shaped in the upper part, the fork legs being arranged symmetrically to the central axis xx and resting on the surfaces of the bearing plate 4.
- the pliers leg 2 is supported in the recess 5 by a hinge pin 18 having a toothed segment.
- the design of the mounting of the pliers leg 2 and the procedure for moving the pliers leg in the recess 5 have already been disclosed in European patent 0 116 305. In this respect, reference is made in full to this extent and the corresponding disclosure is hereby incorporated.
- the free spaces 7 are designed as grooves 22, in which the guide sections 11 formed as ribs 23 lie.
- These ribs 23 extend substantially at right angles to an inner edge 9 'of the movable jaw 9 extending over the entire length of the arm 10, the ribs 23 being shaped such that they practically completely fill the grooves 22 in cross section.
- the stop shoulder 13 arranged in the boom end regions 12 protrude downward over the lower edge 14 of the boom 10.
- the angle between the fixed leg 3 and the recess 5 having the sawtooth-like profiled longitudinal flanks 6 is approximately 15 ° in this embodiment.
- the movable jaw 9 is displaced in the closed position via the joints composed of the joint recesses 15 and the joint pins 16.
- the stop surfaces 19 are supported on the sections 21 of the lower edges 14 assigned to them.
- the closed position is thus defined and is independent of the position of the hinge pin 18 in the recess 5, since when the hinge pin 18 is displaced in the recess 5 there is a simultaneous, essentially parallel displacement of the movable jaw 9. This prevents the fingers from jamming between the tong legs 2 and 3.
- the key pliers 1 according to FIG. 2 are opened, the movable jaw 9 is moved back until the stop surfaces 20 are supported on the lower edges 14 of the extension arms 10 in the region of the stop shoulders 13.
- the fork legs 17 act on the stop shoulders 13, which should prevent the pivot pins 16 from being moved out of the joint recesses 15 due to lever forces.
- This stop limitation also defines the open position and, like the closed position, regardless of the position of the hinge pin 18 in the recess 5. The closing path between the open position and the closed position thus remains the same length for each preselected opening width.
- An essential feature relates to the alignment of the recess 5 and the guide grooves 22 with respect to one another.
- the guide grooves 22 and the recess 5 are arranged so that central axes a, a 'of the recess 5 and a guide groove 22 in the closing direction of the pliers 1, for example in Fig. 1 to the right, diverge slightly.
- the opening angle between the axes is approximately 1-3 °, preferably 2 °.
- the exemplary embodiments in FIGS. 6-13 differ essentially from the first exemplary embodiment in FIGS. 1-5 in that the angle between the fixed leg 3 and the recess 5 is approximately 60 °.
- joint recess 15 is arranged with a clear lateral displacement of the jaw 9, more precisely the tip region thereof.
- the lateral offset corresponds approximately to one to two times the thickness or width of the pivot pin 16. This lateral offset contributes significantly to being able to form the pliers in the desired slim shape.
- the cap 9 according to the exemplary embodiment of FIGS. 6-13, but also the corresponding jaw of the other exemplary embodiments, can be constructed in two parts in cross section.
- two cheek parts bent from sheet steel are laid flat and riveted together in the upper cheek area.
- the parts can also be soldered or welded.
- the corresponding design is shown in Figs. 6 and 7 by the emerging outer visible edges are only indicated schematically.
- the guide sections 11, which are otherwise continuous, are designed as separate parts which are connected to the extension area 10 of the jaw 9, namely preferably soldered.
- the formation of the guide of the movable jaw 9 of the second embodiment according to FIGS. 6-9 is the same as that of the first embodiment.
- the bearing plate 4 has grooves 22 for receiving ribs 23, which extend on the inner sides of the movable jaw 9.
- the stop shoulders 13 arranged in the boom end regions 12 are designed in the shape of a circular arc and extend into the region of the joint recess 15.
- the movable jaw 9 forms partial sections 21.
- the stop surfaces 19 are supported on the sections 21 of the movable jaw 9 assigned to them.
- the closed position is defined and is independent of the position of the hinge pin 18 in the recess 5.
- the guide of the movable jaw is composed of a slot 24 arranged in the bearing plate 4 and a bolt 25 inserted in the displaceable jaw 9. s This pin 25 is arranged in the region of the boom end regions 12 and connects them to one another.
- the operation of the key pliers 1 according to FIGS. 10-13 largely corresponds to that of the second embodiment. Only the stop limitation when the key pliers are in the closed position is not carried out by supporting a stop surface on a portion of the movable jaw 9. This support is provided here by a stop pin 26 arranged in the movable pliers leg 2 in the lower region of its fork leg 17, which is in the closed position is supported on an outer edge of the bearing plate 4 facing it.
- An essential feature of all the exemplary embodiments is that the positive engagement between the pivot pin 16 and the joint recess 15 forms the connection point between the movable jaw 9 and the movable pliers leg 2 both for the coarse longitudinal adjustment and for the jaw opening.
- the key pliers 1 have no further connection point between the movable jaw 9 and the movable pliers leg 2.
- a force transmission from the movable pliers leg 2 to the movable jaw 9 takes place both in the coarse longitudinal adjustment and in the closing of the pliers mouth essentially in the region of the free spaces 7, that is to say in the region of the grooves 22 or the slot 24 16 cover the free spaces 7 in almost every operating position.
- An optimum transmission of force is thus realized, especially since the force transmission points 27 composed of the pivot pins 16 and the joint recesses 15 are arranged in the immediate vicinity of the jaws M.
- the handling of the key pliers 1 can, for example, look as follows: When loosening or tightening a screw or the like, the movable jaw 9 is brought up to the screw in that the hinge pin 18 is brought out of its positive engagement with the sawtooth-like profile of the longitudinal flanks 6 of the recess 5 and the movable pliers leg 2 is displaced while taking the movable jaw 9 with it becomes. The clear width between the jaws 8 and 9 now corresponds to the head width of the screw. By moving the pliers leg 2 into the open position, the movable jaw 9 is moved back, the clear width between the jaws 8, 9 increasing, giving the user the opportunity to remove the key pliers 1 from the screw and reattach them.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Gripping Jigs, Holding Jigs, And Positioning Jigs (AREA)
- Harvester Elements (AREA)
- Clamps And Clips (AREA)
- Orthopedics, Nursing, And Contraception (AREA)
- Cosmetics (AREA)
Claims (11)
- Pince multiprise (1) avec deux mors de pince (8,9) formant une gueule de pince (M), l'un desdits mors de pince (8) étant fixé sur une poignée de pince (3) présentant pour le réglage grossier de la taille de la gueule une fente de guidage longitudinale (5) pour un tenon (18) de rotation d'une poignée de la pince; l'autre desdits mors de pince (9) ayant une forme de fourche, étant monté coulissant sur la poignée de pince (3) portant le mors fixe (8), et étant susceptible d'être déplacé pour assurer la fermeture de la gueule de pince, vie un emplacement de transmission de force entre un épaulement (10) du mors mobile (9) et le bras (16) du côté des mors de le poignée de pince mobile (2); la poignée de pince mobile (2) étant engagée dans la lente de guidage longitudinale (5) munie d'une denture, par l'intermédiaire du tenon de rotation de poignée de pince (18); l'emplacement de transmission de force (27) réalisé comme un engagement à ajustement de forme entre le bras (16) du côté des mors et le mors mobile (9) constituant l'emplacement de liaison entre le mors mobile (9) et la poignée (2) non seulement pour le réglage grossier de la taille de la gueule de mors, mais aussi, pour sa fermeture, caractérisée en ce que la poignée mobile (2) est conformée en fourche de façon à entourer la poignée fixe (3); en ce que les tronçons ou talons de guidage (11) du mors mobile (9) sont guidés dans une rainure de guidage (7) de la poignée fixe (3), les extrémités en forme de fourche coopérant avec le mors mobile (9) par l'intermédiaire d'une denture; et en ce que le tenon de rotation est monté ajusté mécaniquement dans la fente de guidage longitudinale, et est susceptible d'être déplacé pour le réglage grossier de la taille de la gueule (M), à l'encontre d'une sollicitation élastique, transversalement au plan longitudinal des poignées, dans une position de déverrouillage permettant la translation dans la fente de guidage.
- Pince multiprise à mors selon la revendication 1, caractérisée en ce que la rainure de guidage (7) est constituée d'un espace libre au voisinage de la fente de guidage longitudinale (5).
- Pince multiprise à mars selon la revendication 1 au 2, caractérisée en ce que le tronçon de guidage (11) est réalisé sous la forme de nervure (23).
- Pince multiprise à mors selon la revendication 1, caractérisée en ce que la rainure de guidage (7) est réalisée sous la forme d'une fente (24) et le tronçon de guidage (11) sous la forme d'une broche (25).
- Pince multiprise à mors selon l'une des revendications 2 à 4, caractérisée en ce que l'emplacement de transmission de farce (27) se trouve sensiblement dans la zone de l'espace libre (7), tant pendant le réglage grossier de la longueur de la gueule que pendant la fermeture de la fente.
- Pince multiprise à mors selon l'une des revendications précédentes, caractérisée en ce que le mors mobile (9), de chaque côté de l'axe de rotation et sur l'ensemble de la course de pivotement d'une amplitude d'ouverture donnée, est retenu sensiblement sans jeu par une limitation de butée des deux côtés par les surfaces de butée (19, 20) voisines de la dent d'engagement (16) de la poignée mobile (2).
- Pince multiprise à mors selon l'une des revendications précédentes, caractérisée en ce qu'elle présente un épaulement de butée (13), ménagé latéralement à distance sur le mors mobile (9), par rapport à un évidement (15) sensiblement en forme de U et recevant la dent d'engagement (16), cet épaulement de butée (13) formant saillie par en dessous, au-delà de l'arête inférieure (14) du mars mobile (9) partant de l'évidement (15).
- Pince multiprise à mors selon l'une des revendications précédentes, caractérisée en ce que le mars mobile (9) a une forme de fourche et est guidé dans des rainures (7) de la poignée fixe (3) sensiblement parallèles à la rangée de dents.
- Pince multiprise à mors selon l'une des revendications précédentes, caractérisée en ce que la poignée (2) a une forme de fourche et présente des deux côtés une dent d'engagement (16) qui s'engage chaque fois dans un évidement (15) du mors mobile (9).
- Pince multiprise à mors selon l'une des revendications précédentes, caractérisée en ce que les axes médians (a, a') de la fente (5) et de le rainure de guidage (7) divergent dans la direction de fermeture de la gueule de la pince.
- Pince multiprise à mors selon la revendication 10, caractérisée en ce que les axes médians (a, a') forment un angle d'ouverture d'environ 2°.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE3929323 | 1989-09-04 | ||
DE3929323A DE3929323C2 (de) | 1989-09-04 | 1989-09-04 | Schlüsselzange |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0421107A2 EP0421107A2 (fr) | 1991-04-10 |
EP0421107A3 EP0421107A3 (en) | 1992-04-01 |
EP0421107B1 true EP0421107B1 (fr) | 1994-11-30 |
Family
ID=6388590
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP90116136A Expired - Lifetime EP0421107B1 (fr) | 1989-09-04 | 1990-08-23 | Pince |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP0421107B1 (fr) |
JP (1) | JP3237840B2 (fr) |
AT (1) | ATE114530T1 (fr) |
DE (2) | DE3929323C2 (fr) |
ES (1) | ES2064565T3 (fr) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102010016057A1 (de) | 2010-02-25 | 2011-08-25 | KNIPEX-Werk C. Gustav Putsch KG, 42349 | Zange |
TWI652150B (zh) | 2018-01-11 | 2019-03-01 | 伯鑫工具股份有限公司 | 水管鉗 |
TWI694900B (zh) * | 2019-08-01 | 2020-06-01 | 李宏銘 | 鉗具 |
DE102020103446A1 (de) | 2020-02-11 | 2021-08-12 | Knipex-Werk C. Gustav Putsch Kg | Zange |
Families Citing this family (20)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19605295A1 (de) * | 1996-02-14 | 1997-01-23 | Dietmar Turnau | Kompaktschloßwerkzeug / -zange mit stufenlos verstellbaren, parallelgeführten Backen bei integriertem Führungsschlitten und mit integrierten Meßeinrichtungen |
US7313989B1 (en) | 1999-06-11 | 2008-01-01 | Tortolani Jr Kenneth Guy | Parallel jaw locking toggle pliers/wrench |
DE102006010285A1 (de) * | 2006-03-02 | 2007-09-06 | Eduard Wille Gmbh & Co. Kg | Zange mit geschützter Zwangsführung |
DE102007049032B4 (de) | 2006-10-24 | 2021-03-18 | Knipex-Werk C. Gustav Putsch Kg | Zange |
US7299724B1 (en) * | 2007-01-24 | 2007-11-27 | Warheit Matthew W | Self-adjusting gripping tool |
CN102626907A (zh) * | 2012-04-16 | 2012-08-08 | 杭州萧山宏泰五金工具厂 | 一种管子钳 |
CN102615603A (zh) * | 2012-04-16 | 2012-08-01 | 杭州萧山宏泰五金工具厂 | 一种多功能管子钳 |
TWM517065U (zh) * | 2015-06-23 | 2016-02-11 | Tomy Wei-Ming Lai | 可連續旋鎖及旋鬆六角螺母之開口板手 |
TWI670148B (zh) * | 2018-01-11 | 2019-09-01 | 伯鑫工具股份有限公司 | 水管鉗 |
TWI670146B (zh) * | 2018-01-11 | 2019-09-01 | 伯鑫工具股份有限公司 | 水管鉗 |
CN110039457A (zh) * | 2018-01-16 | 2019-07-23 | 伯鑫工具股份有限公司 | 水管钳 |
EP3513909B1 (fr) | 2018-01-23 | 2021-07-21 | Proxene Tools Co., Ltd. | Pince pour tuyau |
DE202018101086U1 (de) | 2018-02-28 | 2018-04-16 | GEDORE Holding GmbH | Zange |
DE202018101087U1 (de) | 2018-02-28 | 2018-04-15 | GEDORE Holding GmbH | Zange |
DE102021102330A1 (de) | 2020-02-12 | 2021-08-12 | Knipex-Werk C. Gustav Putsch Kg | Zange |
DE102021104472A1 (de) | 2020-02-26 | 2021-08-26 | Orbis Will Gmbh + Co. Kg | Zange |
DE102020007819B3 (de) | 2020-12-22 | 2022-03-03 | NWS Germany Produktion W. Nöthen eK | Schlüsselzange |
USD991763S1 (en) | 2021-03-31 | 2023-07-11 | Knipex-Werk C. Gustav Putsch Kg | Pliers |
DE102022129432A1 (de) | 2021-11-08 | 2023-05-11 | Knipex-Werk C. Gustav Putsch Kg | Handwerkzeug sowie Funktionsteil für eine Rastverbindung mit einem Griffbereich eines Handwerkzeuges |
ES2924930A1 (es) * | 2021-12-30 | 2022-10-11 | Sanchez Eduardo Garcia | Sistema de aproximación rápida para herramientas manuales y pinzas prensibles |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1618550A (en) * | 1926-08-16 | 1927-02-22 | Perkins George Ben | Pliers |
US1836473A (en) * | 1930-05-26 | 1931-12-15 | Kob Henry Howard | Wrench |
US2223306A (en) * | 1939-06-13 | 1940-11-26 | Lawrence C Mead | Self-adjusting wrench |
DE857326C (de) * | 1950-01-10 | 1952-11-27 | Herbert Wilms | Sich selbsttaetig oeffnende Flachzange mit Parallelverschiebung der Backen |
DE1478951A1 (de) * | 1962-08-24 | 1969-10-30 | Carl Kuhbier | Zange |
DE1478967A1 (de) * | 1965-09-18 | 1970-01-22 | Carl Kuhbier | Zange |
US3534641A (en) * | 1968-08-09 | 1970-10-20 | Donald Le Duc | Pliers with slidable jaw actuation by claw lever means |
DE3102390A1 (de) * | 1981-01-24 | 1983-01-05 | Fritz 6703 Limburgerhof Knebel | Wasserpumpenzange |
MX153712A (es) * | 1982-07-15 | 1986-12-19 | Sergio Pena Medina | Llave de tuercas autoajustable |
EP0116305B1 (fr) * | 1983-02-02 | 1986-10-15 | Knipex-Werk C. Gustav Putsch | Pince pour tuyaux |
-
1989
- 1989-09-04 DE DE3929323A patent/DE3929323C2/de not_active Expired - Lifetime
-
1990
- 1990-08-23 DE DE59007841T patent/DE59007841D1/de not_active Expired - Lifetime
- 1990-08-23 EP EP90116136A patent/EP0421107B1/fr not_active Expired - Lifetime
- 1990-08-23 AT AT90116136T patent/ATE114530T1/de not_active IP Right Cessation
- 1990-08-23 ES ES90116136T patent/ES2064565T3/es not_active Expired - Lifetime
- 1990-09-03 JP JP23073890A patent/JP3237840B2/ja not_active Expired - Lifetime
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102010016057A1 (de) | 2010-02-25 | 2011-08-25 | KNIPEX-Werk C. Gustav Putsch KG, 42349 | Zange |
DE102010016057B4 (de) | 2010-02-25 | 2023-01-26 | Knipex-Werk C. Gustav Putsch Kg | Zange |
TWI652150B (zh) | 2018-01-11 | 2019-03-01 | 伯鑫工具股份有限公司 | 水管鉗 |
TWI694900B (zh) * | 2019-08-01 | 2020-06-01 | 李宏銘 | 鉗具 |
DE102020103446A1 (de) | 2020-02-11 | 2021-08-12 | Knipex-Werk C. Gustav Putsch Kg | Zange |
Also Published As
Publication number | Publication date |
---|---|
DE3929323C2 (de) | 2001-07-05 |
DE3929323A1 (de) | 1991-03-07 |
ATE114530T1 (de) | 1994-12-15 |
EP0421107A2 (fr) | 1991-04-10 |
DE59007841D1 (de) | 1995-01-12 |
JP3237840B2 (ja) | 2001-12-10 |
JPH03142174A (ja) | 1991-06-17 |
EP0421107A3 (en) | 1992-04-01 |
ES2064565T3 (es) | 1995-02-01 |
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