EP2801444B1 - Grip pliers - Google Patents

Grip pliers Download PDF

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Publication number
EP2801444B1
EP2801444B1 EP14165070.5A EP14165070A EP2801444B1 EP 2801444 B1 EP2801444 B1 EP 2801444B1 EP 14165070 A EP14165070 A EP 14165070A EP 2801444 B1 EP2801444 B1 EP 2801444B1
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EP
European Patent Office
Prior art keywords
toothing
teeth
profiles
tips
long
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EP14165070.5A
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German (de)
French (fr)
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EP2801444A1 (en
Inventor
Andreas Risse
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hazet Werk Hermann Zerver GmbH and Co KG
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Hazet Werk Hermann Zerver GmbH and Co KG
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Publication of EP2801444A1 publication Critical patent/EP2801444A1/en
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    • 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
    • B25B7/02—Jaws
    • 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 gripping pliers with an adjustable joint according to the features in the preamble of patent claim 1.
  • Such gripping tongs count in the scope of EP 0 528 252 A1 the state of the art. It has two pliers arms coupled to one another via a joint, each of which is divided into a grip section, a transition section and a head section with a gripping jaw.
  • a second gripping jaw protrudes transversely to the adjacent transition section and the other first gripping jaw is arranged at an angle of 45 ° to the adjacent transition section.
  • the inner contours of the gripping jaws are S-shaped. As a result, when the tips of the gripping jaws come into contact, they form a parallelogram-shaped jaw.
  • the long inner contours of the pliers mouth are designed as toothed profiles with triangular teeth in longitudinal section.
  • the inner contours of the gripping jaws next to the pliers jaw also have toothed profiles with teeth that are triangular in longitudinal section.
  • a gripper is also known, which is adjustable in large areas and has a construction with a low-wear joint.
  • the invention is based on the object of further developing the known gripping pliers in such a way that their installation is made considerably easier for a fitter, even in difficult assembly situations and after long use with an improved system on an object.
  • the long inner contours of the parallelogram-shaped jaws are now formed by toothing profiles with teeth of different lengths in the longitudinal section and the short inner contours of the jaws and the inner contours of the tips of the gripping jaws are formed by toothing profiles with teeth of the same length in the longitudinal section. Furthermore, it is important that the long second toothing profile of the pliers mouth arranged in the second gripping jaw extends linearly and that the long first toothing profile located in the first gripping jaw extends convexly towards the second toothing profile.
  • a gripping pliers designed in this way in particular when used as a water pump pliers, has the advantage that objects can be securely gripped and handled on the one hand via the tips of the gripping jaws, but on the other hand round in cross-section due to the special design of the parallelogram-shaped pliers mouth with regard to the special toothing profiles provided there or polygonal objects, the surfaces of which may be contaminated by, for example, lubricants and have only low slip resistance, but can still be detected and handled safely in all situations of use.
  • the long sides of the teeth of the long toothing profiles in the pliers mouth are largely parallel to one another and to one of the teeth Tooth profiles arranged on the inside of the point-cutting central longitudinal plane.
  • the average distance between the long first tooth profile of the pliers mouth and the long second tooth profile can preferably be 4.5 mm.
  • the height of the teeth of the long second tooth profile in the jaws is 0.52 mm and the height of the teeth of the long first tooth profile is 0.58 mm. That is, the teeth of the convex tooth profile are formed higher than the teeth of the linear tooth profile in the jaw.
  • the gripping pliers grasp an object and its safe handling after the gripping is improved in that the opening angle between the short side of a tooth of the long tooth profile in the pliers mouth and the long side of the adjacent tooth is 105 °.
  • the opening angle between the short side of a tooth of the long toothing profiles in the pliers mouth and the central longitudinal plane intersecting the teeth of the toothing profiles on the inside of the tips in the case of positively interlocking teeth of the toothing profiles on the inside of the tips is preferably dimensioned 70 °.
  • the long tooth profiles in the pliers mouth are preferably arranged at an angle of 15 ° to the central longitudinal plane intersecting the teeth of the tooth profiles on the inside of the tips with teeth of the tooth profiles of the tips interlocking with one another.
  • the opening angle between a long tooth profile provided in the pliers mouth and the adjacent short tooth profile is 135 °.
  • the opening angle between two teeth of the same length of the toothing profiles on the inside of the tips, the short toothing profiles in the The jaws and the tooth profile on the side of the jaws facing away from the tips is 90 °.
  • the length of the jaws is preferably 21.4 mm.
  • a further improvement in the handling of the gripping pliers is achieved in that, in the case of interlocking teeth of the toothing profiles on the inside of the tips, inner toothing profiles facing away from these tips extend in a straight line next to the pliers mouth, are arranged at a distance from one another and are provided with teeth of equal length in longitudinal section. It also makes sense here that the inner toothing profiles facing away from the tips and lying next to the pliers mouth are arranged at an angle of 2.4 ° to one another that opens away from the tips.
  • a semicircular trough is formed in the inner toothing profile of the second gripping jaw lying next to the pliers jaw.
  • the trough has a radius of 2 mm.
  • one pliers arm has a longitudinal slot in its transition section and the other pliers arm with its transition section passes through the longitudinal slot and has an elongated hole with a toothing profile, a locking piece being linearly displaceably mounted in the second pliers arm, around which the first gun arm can be rotated.
  • various relative positions of the gun arms can be set via the locking piece, in which both gun arms are linearly fixed in position, but are rotatable relative to one another.
  • the gun arms are made by forging. This results in high strength properties with a simultaneous weight saving potential.
  • the pliers arms are preferably made of steel, which ensures that the gripping pliers have a long service life.
  • FIG. 1 and 2 1 is a gripper in the form of a water pump pliers.
  • the gripping pliers 1 have a first pliers arm 2 and a second pliers arm 3, which are coupled to one another via an adjustable joint 4.
  • Each gun arm 2, 3 is divided into a grip section 5, 5a, a transition section 6, 6a and a head section 7, 7a with a gripping jaw 8, 8a.
  • the first gun arm 2 has a longitudinal slot 9 in its transition section 6 and the other gun arm 3 extends through the longitudinal slot 9 with its transition section 6a.
  • the gripping pliers 1 have a locking mechanism 10 which allows a translatory adjustment movement of the second pliers arm 3 to the first pliers arm 2 to be carried out, as a result of which the opening width of the gripping pliers 1 between the head sections 7, 7a can be adjusted in stages.
  • an elongated hole 11 is arranged in the transition section 6a of the second tong arm 3, which has a sawtooth-shaped latching profile 12 on its inner longitudinal edges.
  • an actuating lever 13 is provided on the first gun arm 2, which, when actuated, shifts a locking piece 14 in the axial direction, so that it is shifted from a locked position into a release position and thus enables the translatory adjustment movement of the first gun arm 2 relative to the second gun arm 3. If the locking piece 14 is then in the new locking position, the two tong arms 2, 3 can be pivoted about the joint 4.
  • the second gripping jaw 8a of the second pincer arm 3 projects transversely to the adjacent transition section 6a at an angle ⁇ of 90 ° and the first gripping jaw 8 is arranged on the first pincer arm 2 to the adjacent transition section 6 at an angle ⁇ of 45 °.
  • the Figures 4 and 5 in this connection furthermore show that the long inner contours of the parallelogram-shaped pliers jaw 17 by toothing profiles 18, 19 with teeth 23 of different lengths in longitudinal section and the short inner contours in the pliers jaw 17 and the inner contours of the tips 15, 16 of the gripping jaws 8, 8a are formed by toothed profiles 20, 21, 22 with teeth 24 of equal length in longitudinal section 27. It can also be seen that the long second toothing profile 19 arranged in the second gripping jaw 8a extends linearly in the jaws 17 and the long first toothing profile 18 located in the first gripping jaw 8 extends convexly with respect to the second toothing profile 19. The radius R of the convex tooth profile 18 is 45 mm.
  • the long sides 25 of the teeth 23 of the long toothing profiles 18, 19 in the jaws 17 are arranged largely parallel to one another and to a central longitudinal plane MLE intersecting the teeth 24 of the toothing profiles 22 on the inside of the tips 15, 16.
  • the average distance A of the long second tooth profile 19 in the jaw 17 to the long first tooth profile 18 is 4.5 mm.
  • the height H of the teeth 23 of the long second tooth profile 19 in the jaw 17 is 0.52 mm and the height H 1 of the teeth 23 of the long first tooth profile 18 is 0.58 mm.
  • the opening angle ⁇ between the short side 26 of a tooth 23 of the long toothing profiles 18, 19 in the jaws 17 and the long side 25 of the adjacent tooth 23 is 105 °.
  • the opening angle ⁇ between the short side 26 of a tooth 23 of the long toothing profiles 18, 19 in the jaws 17 and the teeth 24 of the toothing profiles 22 on the inside of the tips 15, 16 of the central longitudinal plane MLE is 70 °.
  • the height H2 of the teeth 24 of the toothing profiles 20, 21 of the short inner contours in the pliers mouth 17 is 0.36 mm ( Figure 5 ).
  • the long tooth profiles 18, 19 in the pliers mouth 17 are arranged at an angle ⁇ of 15 ° to the central longitudinal plane MLE which intersects the teeth 24 of the tooth profiles 22 on the inside of the tips 15, 16 with teeth 24 of the tooth profiles 22 of the tips 15, 16 which engage in a form-fitting manner.
  • the opening angle ⁇ between a long tooth profile 18, 19 located in the pliers jaw 17 and the adjacent short tooth profile 20, 21 is 135 ° ( Figure 3 ).
  • the length L of the jaws 17 is 21.4 mm ( Figure 5 ).
  • these tips 15, 16 have inner toothing profiles 28, 29 facing away from the pliers mouth 17 ( Figure 4 ) extending in a straight line and arranged at a distance from one another and provided with teeth 30 of equal length in longitudinal section 27 ( Figures 4 and 5 ). It can also be seen that these inner toothed profiles 28, 29 are arranged at an angle ⁇ of 2.4 ° opening away from the tips 15, 16 ( Figure 3 ).
  • a semicircular depression 31 is formed in the inner toothing profile 28 of the second gripping jaw 8a lying next to the forceps jaw 17. This has a radius R 1 of 2 mm ( Figures 4 and 5 ).
  • the opening angle ⁇ between the sides 27 of two adjacent teeth 24 of the toothing profiles 20, 21, 22, 28 and 29 on the inside of the tips 15, 16, the short Inner contours of the jaws 17 and on the side of the jaws 17 facing away from the tips 15, 16 is 90 °.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Clamps And Clips (AREA)
  • Surgical Instruments (AREA)
  • Gripping Jigs, Holding Jigs, And Positioning Jigs (AREA)
  • Cutting Tools, Boring Holders, And Turrets (AREA)

Description

Die Erfindung betrifft eine Greifzange mit einem verstellbaren Gelenk gemäß den Merkmalen im Oberbegriff des Patentanspruchs 1.The invention relates to gripping pliers with an adjustable joint according to the features in the preamble of patent claim 1.

Eine solche Greifzange zählt im Umfang der EP 0 528 252 A1 zum Stand der Technik. Sie weist zwei über ein Gelenk miteinander gekoppelte Zangenarme auf, die jeweils in einen Griffabschnitt, in einen Übergangsabschnitt und in einen Kopfabschnitt mit einer Greifbacke gegliedert sind. Eine zweite Greifbacke ist zum benachbarten Übergangsabschnitt quer abstehend und die andere erste Greifbacke zum angrenzenden Übergangsabschnitt unter einem Winkel von 45° angeordnet. Die Innenkonturen der Greifbacken sind S-förmig gestaltet. Dadurch wird bei sich kontaktierenden Spitzen der Greifbacken von diesen ein parallelogrammförmiges Zangenmaul gebildet. Die langen Innenkonturen des Zangenmauls sind als Verzahnungsprofile mit im Längsschnitt dreieckförmigen Zähnen gestaltet. Auch die neben dem Zangenmaul liegenden Innenkonturen der Greifbacken weisen Verzahnungsprofile mit im Längsschnitt dreieckförmigen Zähnen auf.Such gripping tongs count in the scope of EP 0 528 252 A1 the state of the art. It has two pliers arms coupled to one another via a joint, each of which is divided into a grip section, a transition section and a head section with a gripping jaw. A second gripping jaw protrudes transversely to the adjacent transition section and the other first gripping jaw is arranged at an angle of 45 ° to the adjacent transition section. The inner contours of the gripping jaws are S-shaped. As a result, when the tips of the gripping jaws come into contact, they form a parallelogram-shaped jaw. The long inner contours of the pliers mouth are designed as toothed profiles with triangular teeth in longitudinal section. The inner contours of the gripping jaws next to the pliers jaw also have toothed profiles with teeth that are triangular in longitudinal section.

Aus der DE 297 03 681 U1 ist weiterhin eine Greifzange bekannt, die in großen Bereichen verstellbar ist und eine Konstruktion mit verschleißarmen Gelenk aufweist. Der Erfindung liegt - ausgehend vom Stand der Technik - die Aufgabe zugrunde, die bekannte Greifzange derart weiterzuentwickeln, dass einem Monteur ihre Handhabung auch in schwierigen Montagesituationen sowie bei längerem Einsatz bei verbesserter Anlage an einem Gegenstand wesentlich erleichtert wird.From the DE 297 03 681 U1 a gripper is also known, which is adjustable in large areas and has a construction with a low-wear joint. Based on the prior art, the invention is based on the object of further developing the known gripping pliers in such a way that their installation is made considerably easier for a fitter, even in difficult assembly situations and after long use with an improved system on an object.

Die Lösung dieser Aufgabe besteht nach der Erfindung in den Merkmalen des Patentanspruchs 1.This object is achieved according to the invention in the features of patent claim 1.

Vorteilhafte Weiterbildungen der Erfindung sind Gegenstand der Patentansprüche 2 bis 17.Advantageous developments of the invention are the subject of claims 2 to 17.

Erfindungsgemäß sind nunmehr die langen Innenkonturen des parallelogrammförmigen Zangenmauls durch Verzahnungsprofile mit im Längsschnitt unterschiedlich lange Seiten aufweisenden Zähnen und die kurzen Innenkonturen des Zangenmauls sowie die Innenkonturen der Spitzen der Greifbacken durch Verzahnungsprofile mit im Längsschnitt gleich lange Seiten aufweisenden Zähnen gebildet. Des Weiteren ist es von Bedeutung, dass das in der zweiten Greifbacke angeordnete lange zweite Verzahnungsprofil des Zangenmauls sich linear erstreckt und das in der ersten Greifbacke befindliche lange erste Verzahnungsprofil zum zweiten Verzahnungsprofil hin konvex verläuft.According to the invention, the long inner contours of the parallelogram-shaped jaws are now formed by toothing profiles with teeth of different lengths in the longitudinal section and the short inner contours of the jaws and the inner contours of the tips of the gripping jaws are formed by toothing profiles with teeth of the same length in the longitudinal section. Furthermore, it is important that the long second toothing profile of the pliers mouth arranged in the second gripping jaw extends linearly and that the long first toothing profile located in the first gripping jaw extends convexly towards the second toothing profile.

Eine derart gestaltete Greifzange hat insbesondere in ihrer Verwendung als Wasserpumpenzange den Vorteil, dass einerseits über die Spitzen der Greifbacken Gegenstände sicher erfasst und gehandhabt werden können, dass andererseits jedoch durch die besondere Gestaltung des parallelogrammförmigen Zangenmauls im Hinblick auf die dort vorgesehenen speziellen Verzahnungsprofile im Querschnitt runde oder mehrkantige Gegenstände, deren Oberflächen gegebenenfalls durch beispielsweise Schmiermittel verunreinigt sind und eine nur geringe Rutschfestigkeit aufweisen, dennoch in allen Einsatzsituationen einwandfrei erfasst und sicher gehandhabt werden können.A gripping pliers designed in this way, in particular when used as a water pump pliers, has the advantage that objects can be securely gripped and handled on the one hand via the tips of the gripping jaws, but on the other hand round in cross-section due to the special design of the parallelogram-shaped pliers mouth with regard to the special toothing profiles provided there or polygonal objects, the surfaces of which may be contaminated by, for example, lubricants and have only low slip resistance, but can still be detected and handled safely in all situations of use.

Bei formschlüssig ineinander greifenden Zähnen der Verzahnungsprofile innenseitig der Spitzen sind die langen Seiten der Zähne der langen Verzahnungsprofile in dem Zangenmaul weitgehend parallel zueinander und zu einer die Zähne der Verzahnungsprofile innenseitig der Spitzen schneidenden Mittellängsebene angeordnet.In the case of interlocking teeth of the toothing profiles on the inside of the tips, the long sides of the teeth of the long toothing profiles in the pliers mouth are largely parallel to one another and to one of the teeth Tooth profiles arranged on the inside of the point-cutting central longitudinal plane.

Ferner kann in diesem Zusammenhang der mittlere Abstand des langen ersten Verzahnungsprofils des Zangenmauls zum langen zweiten Verzahnungsprofil vorzugsweise 4,5 mm betragen.Furthermore, in this connection the average distance between the long first tooth profile of the pliers mouth and the long second tooth profile can preferably be 4.5 mm.

Die Höhe der Zähne des langen zweiten Verzahnungsprofils im Zangenmaul beläuft sich auf 0,52 mm und die Höhe der Zähne des langen ersten Verzahnungsprofils 0,58 mm. Das heißt, die Zähne des konvex verlaufenden Verzahnungsprofils sind höher als die Zähne des sich linear erstreckenden Verzahnungsprofils in dem Zangenmaul ausgebildet.The height of the teeth of the long second tooth profile in the jaws is 0.52 mm and the height of the teeth of the long first tooth profile is 0.58 mm. That is, the teeth of the convex tooth profile are formed higher than the teeth of the linear tooth profile in the jaw.

Die Erfassung eines Gegenstands durch die Greifzange und ihre sichere Handhabung nach dem Erfassen wird dadurch verbessert, dass der Öffnungswinkel zwischen der kurzen Seite eines Zahns der langen Verzahnungsprofile im Zangenmaul und der langen Seite des jeweils benachbarten Zahns 105° beträgt. Außerdem ist der Öffnungswinkel zwischen der kurzen Seite eines Zahns der langen Verzahnungsprofile im Zangenmaul und der die Zähne der Verzahnungsprofile innenseitig der Spitzen schneidenden Mittellängsebene bei formschlüssig ineinander greifenden Zähnen der Verzahnungsprofile innenseitig der Spitzen vorzugsweise 70° bemessen.The gripping pliers grasp an object and its safe handling after the gripping is improved in that the opening angle between the short side of a tooth of the long tooth profile in the pliers mouth and the long side of the adjacent tooth is 105 °. In addition, the opening angle between the short side of a tooth of the long toothing profiles in the pliers mouth and the central longitudinal plane intersecting the teeth of the toothing profiles on the inside of the tips in the case of positively interlocking teeth of the toothing profiles on the inside of the tips is preferably dimensioned 70 °.

Es hat sich ferner als vorteilhaft erwiesen, wenn die Höhe der Zähne der kurzen Verzahnungsprofile im Zangenmaul 0,36 mm beträgt.It has also proven to be advantageous if the height of the teeth of the short tooth profiles in the pliers mouth is 0.36 mm.

Die langen Verzahnungsprofile im Zangenmaul sind zu der die Zähne der Verzahnungsprofile innenseitig der Spitzen schneidenden Mittellängsebene bei formschlüssig ineinander greifenden Zähnen der Verzahnungsprofile der Spitzen bevorzugt unter einem Winkel von 15° angeordnet.The long tooth profiles in the pliers mouth are preferably arranged at an angle of 15 ° to the central longitudinal plane intersecting the teeth of the tooth profiles on the inside of the tips with teeth of the tooth profiles of the tips interlocking with one another.

Der Öffnungswinkel zwischen einem im Zangenmaul vorgesehenen langen Verzahnungsprofil und dem benachbarten kurzen Verzahnungsprofil beträgt 135°.The opening angle between a long tooth profile provided in the pliers mouth and the adjacent short tooth profile is 135 °.

Der Öffnungswinkel zwischen zwei gleich lange Seiten aufweisenden Zähnen der Verzahnungsprofile innenseitig der Spitzen, der kurzen Verzahnungsprofile im Zangenmaul sowie der Verzahnungsprofile auf der den Spitzen abgewandten Seite des Zangenmaul beträgt 90°.The opening angle between two teeth of the same length of the toothing profiles on the inside of the tips, the short toothing profiles in the The jaws and the tooth profile on the side of the jaws facing away from the tips is 90 °.

Die Länge des Zangenmauls ist vorzugsweise 21,4 mm bemessen.The length of the jaws is preferably 21.4 mm.

Eine weitere Verbesserung der Handhabung der Greifzange wird dadurch erzielt, dass bei formschlüssig ineinander greifenden Zähnen der Verzahnungsprofile innenseitig der Spitzen diesen Spitzen abgewandte innere Verzahnungsprofile neben dem Zangenmaul sich geradlinig erstrecken, im Abstand zueinander angeordnet und mit im Längsschnitt gleich lange Seiten aufweisenden Zähnen versehen sind. Sinnvoll ist es hierbei außerdem, dass die den Spitzen abgewandten, neben dem Zangenmaul liegenden inneren Verzahnungsprofile unter einem sich von den Spitzen weg öffnenden Winkel von 2,4° zueinander angeordnet sind.A further improvement in the handling of the gripping pliers is achieved in that, in the case of interlocking teeth of the toothing profiles on the inside of the tips, inner toothing profiles facing away from these tips extend in a straight line next to the pliers mouth, are arranged at a distance from one another and are provided with teeth of equal length in longitudinal section. It also makes sense here that the inner toothing profiles facing away from the tips and lying next to the pliers mouth are arranged at an angle of 2.4 ° to one another that opens away from the tips.

In dem neben dem Zangenmaul liegenden inneren Verzahnungsprofil der zweiten Greifbacke ist eine halbkreisförmige Mulde ausgebildet. Die Mulde weist einen Radius von 2 mm auf.A semicircular trough is formed in the inner toothing profile of the second gripping jaw lying next to the pliers jaw. The trough has a radius of 2 mm.

Schließlich ist es bei der erfindungsgemäßen Greifzange noch von Vorteil, dass ein Zangenarm in seinem Übergangsabschnitt einen Längsschlitz aufweist und der andere Zangenarm mit seinem Übergangsabschnitt den Längsschlitz durchgreift sowie ein Langloch mit einem Verzahnungsprofil besitzt, wobei in dem zweiten Zangenarm ein Sperrstück linear verschiebbar gelagert ist, um das der erste Zangenarm drehbar ist. Auf diese Weise können über das Sperrstück diverse Relativstellungen der Zangenarme eingestellt werden, in der beide Zangenarme linear lagefixiert, jedoch drehbar zueinander angeordnet sind.Finally, with the gripping pliers according to the invention it is also advantageous that one pliers arm has a longitudinal slot in its transition section and the other pliers arm with its transition section passes through the longitudinal slot and has an elongated hole with a toothing profile, a locking piece being linearly displaceably mounted in the second pliers arm, around which the first gun arm can be rotated. In this way, various relative positions of the gun arms can be set via the locking piece, in which both gun arms are linearly fixed in position, but are rotatable relative to one another.

Schließlich ist noch zweckmäßig, dass die Zangenarme schmiedetechnisch hergestellt sind. Hierdurch ergeben sich hohe Festigkeitseigenschaften bei gleichzeitigem Gewichtseinsparungspotential. Vorzugsweise sind die Zangenarme aus einem Stahl hergestellt, der eine lange Einsatzzeit der Greifzange gewährleistet.Finally, it is expedient that the gun arms are made by forging. This results in high strength properties with a simultaneous weight saving potential. The pliers arms are preferably made of steel, which ensures that the gripping pliers have a long service life.

Die Erfindung ist nachfolgend anhand eines in den Zeichnungen dargestellten Ausführungsbeispiels näher erläutert. Es zeigen:

Figur 1
in der Seitenansicht eine Greifzange;
Figur 2
die Greifzange in Richtung des Pfeils II der Figur 1 gesehen;
Figur 3
in der Seitenansicht den Greifbereich der Greifzange;
Figur 4
ebenfalls in der Seitenansicht einen vergrößerten Teilabschnitt des Greifbereichs der Figur 3 und
Figur 5
nochmals den vergrößerten Teilabschnitt des Greifbereichs.
The invention is explained in more detail below with reference to an embodiment shown in the drawings. Show it:
Figure 1
in the side view a gripper;
Figure 2
the gripper in the direction of arrow II of the Figure 1 seen;
Figure 3
in the side view the gripping area of the gripping tongs;
Figure 4
also in side view an enlarged portion of the gripping area of the Figure 3 and
Figure 5
again the enlarged section of the gripping area.

In den Figuren 1 und 2 ist mit 1 eine Greifzange in Form einer Wasserpumpenzange bezeichnet. Die Greifzange 1 weist einen ersten Zangenarm 2 und einen zweiten Zangenarm 3 auf, die über ein verstellbares Gelenk 4 miteinander gekoppelt sind.In the Figures 1 and 2 1 is a gripper in the form of a water pump pliers. The gripping pliers 1 have a first pliers arm 2 and a second pliers arm 3, which are coupled to one another via an adjustable joint 4.

Jeder Zangenarm 2, 3 ist in einen Griffabschnitt 5, 5a, einen Übergangsabschnitt 6, 6a und in einen Kopfabschnitt 7, 7a mit einer Greifbacke 8, 8a gegliedert.Each gun arm 2, 3 is divided into a grip section 5, 5a, a transition section 6, 6a and a head section 7, 7a with a gripping jaw 8, 8a.

Aus der Figur 2 ist darüber hinaus ersichtlich, dass der erste Zangenarm 2 in seinem Übergangsabschnitt 6 einen Längsschlitz 9 aufweist und der andere Zangenarm 3 mit seinem Übergangsabschnitt 6a den Längsschlitz 9 durchgreift.From the Figure 2 it can also be seen that the first gun arm 2 has a longitudinal slot 9 in its transition section 6 and the other gun arm 3 extends through the longitudinal slot 9 with its transition section 6a.

Ferner weist die Greifzange 1 eine Verschlussmechanik 10 auf, die es erlaubt, eine translatorische Verstellbewegung des zweiten Zangenarms 3 zum ersten Zangenarm 2 durchzuführen, wodurch sich die Öffnungsweite der Greifzange 1 zwischen den Kopfabschnitten 7, 7a stufenweise einstellen lässt.Furthermore, the gripping pliers 1 have a locking mechanism 10 which allows a translatory adjustment movement of the second pliers arm 3 to the first pliers arm 2 to be carried out, as a result of which the opening width of the gripping pliers 1 between the head sections 7, 7a can be adjusted in stages.

Zur Durchführung der translatorischen Verstellbewegung ist in dem Übergangsabschnitt 6a des zweiten Zangenarms 3 ein Langloch 11 angeordnet, das an seinen inneren Längsrändern jeweils ein sägezahnförmiges Rastprofil 12 aufweist. Des Weiteren ist am ersten Zangenarm 2 ein Betätigungshebel 13 vorgesehen, der bei Betätigung ein Sperrstück 14 in axialer Richtung verschiebt, so dass es von einer Sperrstellung in eine Lösestellung verlagert wird und damit die translatorische Verstellbewegung des ersten Zangenarms 2 relativ zum zweiten Zangenarm 3 ermöglicht. Befindet sich dann das Sperrstück 14 in der neuen Sperrstellung, können die beiden Zangenarme 2, 3 um das Gelenk 4 verschwenkt werden. Wie die Figuren 1 und 3 erkennen lassen, ist die zweite Greifbacke 8a des zweiten Zangenarms 3 zum benachbarten Übergangsabschnitt 6a unter einem Winkel α von 90° quer abstehend und die erste Greifbacke 8 am ersten Zangenarm 2 zum angrenzenden Übergangsabschnitt 6 unter einem Winkel β von 45° angeordnet.To carry out the translational adjustment movement, an elongated hole 11 is arranged in the transition section 6a of the second tong arm 3, which has a sawtooth-shaped latching profile 12 on its inner longitudinal edges. Furthermore, an actuating lever 13 is provided on the first gun arm 2, which, when actuated, shifts a locking piece 14 in the axial direction, so that it is shifted from a locked position into a release position and thus enables the translatory adjustment movement of the first gun arm 2 relative to the second gun arm 3. If the locking piece 14 is then in the new locking position, the two tong arms 2, 3 can be pivoted about the joint 4. As the Figures 1 and 3 can be seen, the second gripping jaw 8a of the second pincer arm 3 projects transversely to the adjacent transition section 6a at an angle α of 90 ° and the first gripping jaw 8 is arranged on the first pincer arm 2 to the adjacent transition section 6 at an angle β of 45 °.

Des Weiteren ist insbesondere anhand der Figuren 4 und 5 zu sehen, dass die einander zugewandten S-förmigen Innenkonturen der Greifbacken 8, 8a unter Ausbildung eines bei sich kontaktierenden Spitzen 15, 16 der Greifbacken 8, 8a parallelogrammförmigen Zangenmauls 17 Verzahnungsprofile 18 bis 22 mit im Längsschnitt dreieckförmigen Zähnen 23, 24 aufweisen.Furthermore, the Figures 4 and 5 to see that the mutually facing S-shaped inner contours of the gripping jaws 8, 8a, with the formation of a contacting tips 15, 16 of the gripping jaws 8, 8a, parallelogram-shaped pliers jaw 17 have toothing profiles 18 to 22 with teeth 23, 24 which are triangular in longitudinal section.

Die Figur 4 und 5 zeigen in diesem Zusammenhang ferner, dass die langen Innenkonturen des parallelogrammförmigen Zangenmauls 17 durch Verzahnungsprofile 18, 19 mit im Längsschnitt unterschiedlich lange Seiten 25, 26 aufweisenden Zähnen 23 und die kurzen Innenkonturen im Zangenmaul 17 sowie die Innenkonturen der Spitzen 15, 16 der Greifbacken 8, 8a durch Verzahnungsprofile 20, 21, 22 mit im Längsschnitt gleich lange Seiten 27 aufweisenden Zähnen 24 gebildet sind. Außerdem ist erkennbar, dass das in der zweiten Greifbacke 8a angeordnete lange zweite Verzahnungsprofil 19 im Zangenmaul 17 sich linear erstreckt und das in der ersten Greifbacke 8 befindliche lange erste Verzahnungsprofil 18 zum zweiten Verzahnungsprofil 19 konvex verläuft. Der Radius R des konvexen Verzahnungsprofils 18 beträgt 45 mm.The Figures 4 and 5 in this connection furthermore show that the long inner contours of the parallelogram-shaped pliers jaw 17 by toothing profiles 18, 19 with teeth 23 of different lengths in longitudinal section and the short inner contours in the pliers jaw 17 and the inner contours of the tips 15, 16 of the gripping jaws 8, 8a are formed by toothed profiles 20, 21, 22 with teeth 24 of equal length in longitudinal section 27. It can also be seen that the long second toothing profile 19 arranged in the second gripping jaw 8a extends linearly in the jaws 17 and the long first toothing profile 18 located in the first gripping jaw 8 extends convexly with respect to the second toothing profile 19. The radius R of the convex tooth profile 18 is 45 mm.

Bei formschlüssig ineinander greifenden Zähnen 24 der Verzahnungsprofile 22 innenseitig der Spitzen 15, 16 (Figur 5) sind die langen Seiten 25 der Zähne 23 der langen Verzahnungsprofile 18, 19 im Zangenmaul 17 weitgehend parallel zueinander und zu einer die Zähne 24 der Verzahnungsprofile 22 innenseitig der Spitzen 15, 16 schneidenden Mittellängsebene MLE angeordnet. In diesem Fall beträgt der mittlere Abstand A des langen zweiten Verzahnungsprofils 19 im Zangenmaul 17 zum langen ersten Verzahnungsprofil 18 4,5 mm. Die Höhe H der Zähne 23 des langen zweiten Verzahnungsprofils 19 im Zangenmaul 17 ist 0,52 mm und die Höhe H1 der Zähne 23 des langen ersten Verzahnungsprofils 18 ist 0,58 mm bemessen.With interlocking teeth 24 of the toothed profiles 22 on the inside of the tips 15, 16 ( Figure 5 ), the long sides 25 of the teeth 23 of the long toothing profiles 18, 19 in the jaws 17 are arranged largely parallel to one another and to a central longitudinal plane MLE intersecting the teeth 24 of the toothing profiles 22 on the inside of the tips 15, 16. In this case, the average distance A of the long second tooth profile 19 in the jaw 17 to the long first tooth profile 18 is 4.5 mm. The height H of the teeth 23 of the long second tooth profile 19 in the jaw 17 is 0.52 mm and the height H 1 of the teeth 23 of the long first tooth profile 18 is 0.58 mm.

Wie die Figur 3 zeigt, beträgt der Öffnungswinkel γ zwischen der kurzen Seite 26 eines Zahns 23 der langen Verzahnungsprofile 18, 19 im Zangenmaul 17 und der langen Seite 25 des jeweils benachbarten Zahns 23 105°. Hingegen ist der Öffnungswinkel δ zwischen der kurzen Seite 26 eines Zahns 23 der langen Verzahnungsprofile 18, 19 im Zangenmaul 17 und der die Zähne 24 der Verzahnungsprofile 22 innenseitig der Spitzen 15, 16 schneidenden Mittellängsebene MLE 70° bemessen.As the Figure 3 shows, the opening angle γ between the short side 26 of a tooth 23 of the long toothing profiles 18, 19 in the jaws 17 and the long side 25 of the adjacent tooth 23 is 105 °. In contrast, the opening angle δ between the short side 26 of a tooth 23 of the long toothing profiles 18, 19 in the jaws 17 and the teeth 24 of the toothing profiles 22 on the inside of the tips 15, 16 of the central longitudinal plane MLE is 70 °.

Die Höhe H2 der Zähne 24 der Verzahnungsprofile 20, 21 der kurzen Innenkonturen im Zangenmaul 17 beträgt 0,36 mm (Figur 5).The height H2 of the teeth 24 of the toothing profiles 20, 21 of the short inner contours in the pliers mouth 17 is 0.36 mm ( Figure 5 ).

Die langen Verzahnungsprofile 18, 19 im Zangenmaul 17 sind zu der die Zähne 24 der Verzahnungsprofile 22 innenseitig der Spitzen 15, 16 schneidenden Mittellängsebene MLE bei formschlüssig ineinander greifenden Zähnen 24 der Verzahnungsprofile 22 der Spitzen 15,16 unter einem Winkel ε von 15° angeordnet. Der Öffnungswinkel ζ zwischen einem im Zangenmaul 17 befindlichen langen Verzahnungsprofil 18, 19 und dem benachbarten kurzen Verzahnungsprofil 20, 21 beträgt 135° (Figur 3).The long tooth profiles 18, 19 in the pliers mouth 17 are arranged at an angle ε of 15 ° to the central longitudinal plane MLE which intersects the teeth 24 of the tooth profiles 22 on the inside of the tips 15, 16 with teeth 24 of the tooth profiles 22 of the tips 15, 16 which engage in a form-fitting manner. The opening angle ζ between a long tooth profile 18, 19 located in the pliers jaw 17 and the adjacent short tooth profile 20, 21 is 135 ° ( Figure 3 ).

Die Länge L des Zangenmauls 17 beträgt 21,4 mm (Figur 5).The length L of the jaws 17 is 21.4 mm ( Figure 5 ).

Bei formschlüssig ineinander greifenden Zähnen 24 der Verzahnungsprofile 22 innenseitig der Spitzen 15, 16 sind diesen Spitzen 15, 16 abgewandte innere Verzahnungsprofile 28, 29 neben dem Zangenmaul 17 (Figur 4) sich geradlinig erstreckend und im Abstand zueinander angeordnet sowie mit im Längsschnitt gleich lange Seiten 27 aufweisenden Zähnen 30 versehen (Figuren 4 und 5). Außerdem ist erkennbar, dass diese inneren Verzahnungsprofile 28, 29 unter einem sich von den Spitzen 15, 16 weg öffnenden Winkel η von 2,4° angeordnet sind (Figur 3).With interlocking teeth 24 of the toothing profiles 22 on the inside of the tips 15, 16, these tips 15, 16 have inner toothing profiles 28, 29 facing away from the pliers mouth 17 ( Figure 4 ) extending in a straight line and arranged at a distance from one another and provided with teeth 30 of equal length in longitudinal section 27 ( Figures 4 and 5 ). It can also be seen that these inner toothed profiles 28, 29 are arranged at an angle η of 2.4 ° opening away from the tips 15, 16 ( Figure 3 ).

In dem neben dem Zangenmaul 17 liegenden inneren Verzahnungsprofil 28 der zweiten Greifbacke 8a ist eine halbkreisförmige Mulde 31 ausgebildet. Diese weist einen Radius R1 von 2 mm auf (Figuren 4 und 5).A semicircular depression 31 is formed in the inner toothing profile 28 of the second gripping jaw 8a lying next to the forceps jaw 17. This has a radius R 1 of 2 mm ( Figures 4 and 5 ).

Der Öffnungswinkel θ zwischen den Seiten 27 zweier benachbarter Zähne 24 der Verzahnungsprofile 20, 21, 22, 28 und 29 innenseitig der Spitzen 15, 16, der kurzen Innenkonturen des Zangenmauls 17 sowie auf der den Spitzen 15, 16 abgewandten Seite des Zangenmauls 17 beträgt 90°.The opening angle θ between the sides 27 of two adjacent teeth 24 of the toothing profiles 20, 21, 22, 28 and 29 on the inside of the tips 15, 16, the short Inner contours of the jaws 17 and on the side of the jaws 17 facing away from the tips 15, 16 is 90 °.

Bezugszeichen:Reference numerals:

1 -1 -
Greifzangepliers
2 -2 -
erster Zangenarmfirst gun arm
3 -3 -
zweiter Zangenarmsecond gun arm
4 -4 -
Gelenkjoint
5 -5 -
Griffabschnitt v. 2Handle section v. 2
5a-5a
Griffabschnitt v. 3Handle section v. 3
6 -6 -
Übergangsabschnitt v. 2Transition section v. 2
6a -6a -
Übergangsabschnitt v. 3Transition section v. 3
7 -7 -
Kopfabschnitt v. 2Head section v. 2
7a -7a -
Kopfabschnitt v, 3Head section v, 3
8 -8th -
erste Greifbacke v. 2first gripper jaw v. 2
8a -8a -
zweite Greifbacke v. 3second gripper jaw v. 3
9 -9 -
Längsschlitz in 6Longitudinal slot in 6
10-10-
Verschlussmechanikclosing mechanism
11 -11 -
Langloch in 6aElongated hole in 6a
12 -12 -
Rastprofile in 11Locking profiles in 11
13 -13 -
Betätigungshebelactuating lever
14 -14 -
Sperrstücklocking piece
15 -15 -
Spitze v. 8Tip of 8th
16 -16 -
Spitze v. 8aTip of 8a
17 -17 -
Zangenmaulbeaks
18 -18 -
langes Verzahnungsprofil an 8long tooth profile on 8
19 -19 -
langes Verzahnungsprofil an 8along tooth profile at 8a
20 -20 -
kurzes Verzahnungsprofil an 8short tooth profile on 8
21 -21 -
kurzes Verzahnungsprofil an 8ashort tooth profile at 8a
22 -22 -
Verzahnungsprofile an 15 u. 16Gear profiles on 15 u. 16
23 -23 -
Zähne v. 18 u. 19Teeth v. 18 u. 19
24 -24 -
Zähne v. 20,21,22Teeth v. 20,21,22
25 -25 -
lange Seiten v. 23long pages from 23
26 -26 -
kurze Seiten v. 23short pages from 23
27 -27 -
Seiten v. 24Pages from 24
28 -28 -
Verzahnungsprofil neben 17Gear profile next to 17
29 -29 -
Verzahnungsprofil neben 17Gear profile next to 17
30 -30 -
Zähne v. 28, 29Teeth v. 28, 29
31 -31 -
Mulde in 28Trough in 28
A -A -
Abstand zw. 18 u. 19Distance between 18 and 19
H -H -
Höhe v. 23 in 19Height of 23 in 19
H1 -H 1 -
Höhe v. 23 in 18Height of 23 in 18
H2 -H 2 -
Höhe v. 24Height of 24
L -L -
Länge v. 17Length of 17
R -R -
Radius v. 18Radius of 18
R1 -R1 -
Radius v. 31Radius of 31
MLE -MLE -
Mittellängsebene zw. 24 v. 15 u. 16Central longitudinal plane between 24 BC 15 u. 16
α -α -
Winkel zw. 6a u. 8aAngle between 6a u. 8a
β -β -
Winkel zw. 6 u. 8Angle between 6 u. 8th
γ -γ -
Winkel zw. 25 u. 26Angle between 25 u. 26
δ -δ -
Winkel zw. 26 u. MLEAngle between 26 u. MLE
ε -ε -
Winkel zw. 18,19 u. MLEAngle between 18.19 u. MLE
ζ -ζ -
Winkel zw. 18,19 u. 20,21Angle between 18.19 u. 20.21
η -η -
Winkel zw. 28 u. 29Angle between 28 u. 29
θ -θ -
Winkel zw. 27Angle between 27

Claims (17)

  1. Grip pliers (1) having an adjustable joint (4), which has two gripper arms (2, 3) coupled with one another via the joint (4), which are organised respectively into a handle portion (5, 5a), a transition portion (6, 6a) and into a head portion (7, 7a) having a gripping jaw (8, 8a), wherein a second gripping jaw (8a) is disposed protruding transversely from the adjoining transition portion (6a) and the other first gripping jaw (8) is disposed at an angle (β) of between approximately 35° and 55° to the adjoining transition portion (6), and wherein the S-shaped inner contours, facing one another, of the gripping jaws (8, 8a), with the formation of a parallelogram-shaped plier mouth (17) when the tips (15, 16) of the gripping jaws (8, 8a) come into contact, have toothing profiles (18, 19, 20, 21) having teeth (23, 24) which are triangular-shaped in longitudinal section, and the long inner contours of the parallelogram-shaped plier mouth (17) are formed by toothing profiles (18, 19) having teeth (23) having sides (25, 26) which are of different lengths in longitudinal section and the short inner contours of the plier mouth (17) and the inner contours of the tips (15, 16) of the gripping jaws (8, 8a) are formed by toothing profiles (20, 21, 22) having teeth (24) having sides (27) which are of equal length in longitudinal section, characterised in that the long second toothing profile (19), disposed in the second gripping jaw (8a), of the plier mouth (17) extends linearly and the long first toothing profile (18), located in the first gripping jaw (8) extends in a convex manner towards the second toothing profile (19).
  2. Grip pliers according to claim 1, characterised in that in the case of teeth (24), engaging form-fittingly in one another, of the toothing profiles (22) on the inner side of the tips (15, 16) the long sides (25) of the teeth (23) of the long toothing profiles (18, 19) are disposed in the plier mouth (17) to the main extent parallel to one another and to a central longitudinal plane (MLE) cutting the teeth (24) of the toothing profiles (22) on the inner side of the tips (15, 16).
  3. Grip pliers according to claim 1 or 2, characterised in that in the case of teeth (24), engaging form-fittingly in one another, of the toothing profiles (22) on the inner side of the tips (15, 16) the central distance (A) from the long second toothing profile (19) in the plier mouth (17) to the long first toothing profile (18) is 4.5 mm.
  4. Grip pliers according to any of claims 1 to 3, characterised in that the height (H) of the teeth (23) of the long second toothing profile (19) in the plier mouth (17) is 0.52 mm and the height (H1) of the teeth (23) of the long first toothing profile (18) is 0.58 mm.
  5. Grip pliers according to any of claims 1 to 4, characterised in that the opening angle (y) between the short side (26) of a tooth (23) of the long toothing profiles (18, 19) in the plier mouth (17) and the long side (25) of the respectively adjacent tooth (23) is 105°.
  6. Grip pliers according to any of claims 1 to 5, characterised in that the opening angle (δ) between the short side (26) of a tooth (23) of the long toothing profiles (18, 19) in the plier mouth (17) and the central longitudinal plane (MLE) cutting the teeth (24) of the toothing profiles (22) on the inner side of the tips (15, 16) is 70° in the case of teeth (24) of the toothing profiles (22) on the inner side of the tips (15, 16) engaging form-fittingly in one another.
  7. Grip pliers according to any of claims 1 to 6, characterised in that the height (H2) of the teeth (24) of the toothing profiles (20, 21) of the short inner contours in the plier mouth (17) is 0.36 mm.
  8. Grip pliers according to any of claims 1 to 7, characterised in that the long toothing profiles (18, 19) in the plier mouth (17) are disposed at an angle (ε) of 15° to the central longitudinal plane (MLE) cutting the teeth (24) of the toothing profiles (22) on the inner side of the tips (15, 16), in the case of teeth (24) of the toothing profiles (22) of the tips (15, 16) engaging one-fittingly in one another.
  9. Grip pliers according to any of claims 1 to 8, characterised in that the opening angle (ζ) between a long toothing profile (18, 19) located in the plier mouth (17) and the adjacent short toothing profile (20, 21) is 135°.
  10. Grip pliers according to any of claims 1 to 9, characterised in that the opening angle (θ) between teeth (24), having two equally long sides (27), of the toothing profiles (22) on the inner side of the tips (15, 16), of the short toothing profiles (20, 21) in the plier mouth (17) and of the toothing profiles (28, 29) on the side, facing away from the tips (15, 16), of the plier mouth (17) is 90°.
  11. Grip pliers according to any of claims 1 to 10, characterised in that the length (L) of the plier mouth (17) is 21.4 mm.
  12. Grip pliers according to any of claims 1 to 11, characterised in that in the case of teeth (24), engaging form-fittingly in one another, of the toothing profiles (22) on the inner side of the tips (15, 16) inner toothing profiles (28, 29) facing away from these tips (15, 16) extend in a straight line next to the plier mouth (17), are disposed at a distance to one another and are equipped with teeth (30) having sides (27) which are of equal length in longitudinal section.
  13. Grip pliers according to claim 12, characterised in that the inner toothing profiles (28, 29), facing away from the tips (15, 16), situated next to the plier mouth (17), are disposed at an angle (η) of 2.4° opening away from the tips (15, 16).
  14. Grip pliers according to claim 12 or 13, characterised in that in the inner toothing profile (28), situated next to the plier mouth (17), of the second gripping jaw (8a) is formed a semicircular-shaped depression (31).
  15. Grip pliers according to claim 14, characterised in that the depression (31) has a radius (R1) of 2 mm.
  16. Grip pliers according to any of claims 1 to 15, characterised in that a gripper arm (2) has in its transition portion (6) a longitudinal slot (9) and the other gripper arm (3) engages with its transition portion (6a) through the longitudinal slot (9) and has an elongate hole (11) having two latching profiles (12) situated opposite one another, wherein in the second gripper arm (3) is mounted in a linearly displaceable manner a locking piece (14) about which the first gripper arm (2) can be rotated.
  17. Grip pliers according to any of claims 1 to 16, characterised in that the gripper arms (2, 3) are manufactured by forging.
EP14165070.5A 2013-05-07 2014-04-17 Grip pliers Active EP2801444B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE202013101985U DE202013101985U1 (en) 2013-05-07 2013-05-07 tongs

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EP2801444A1 EP2801444A1 (en) 2014-11-12
EP2801444B1 true EP2801444B1 (en) 2019-12-25

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EP (1) EP2801444B1 (en)
CN (1) CN104139347B (en)
DE (1) DE202013101985U1 (en)
ES (1) ES2775205T3 (en)
TW (1) TWI546165B (en)

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Publication number Priority date Publication date Assignee Title
CN104985089B (en) * 2015-07-22 2016-11-23 刘剑 A kind of cable bending pliers
US11541514B2 (en) 2016-03-23 2023-01-03 Milwaukee Electric Tool Corporation Locking pliers
JP6236179B1 (en) * 2017-03-07 2017-11-22 株式会社エンジニア Water pump pliers and cover members
CN115042103A (en) 2017-09-11 2022-09-13 米沃奇电动工具公司 Locking pliers, pliers and tool for clamping workpiece
USD910395S1 (en) 2019-03-11 2021-02-16 Milwaukee Electric Tool Corporation Pliers
TW202245992A (en) 2021-04-07 2022-12-01 德商Ｃ 格斯塔夫 布希 克尼佩克斯工廠 pliers
DE102021113461A1 (en) 2021-04-07 2022-10-13 Knipex-Werk C. Gustav Putsch Kg Tongs

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GB191000144A (en) * 1910-01-03 1910-11-17 Wilhelm Kessing An Improved Pipe Wrench or Spanner.
GB1370605A (en) * 1973-02-23 1974-10-16 Putsch K Pipe wrench
EP0116305B1 (en) * 1983-02-02 1986-10-15 Knipex-Werk C. Gustav Putsch Gripping plyers
ES1008860Y (en) * 1989-01-27 1990-01-01 Super-Ego Tools, S.A. PERFECTED PINCHER.
DE9113870U1 (en) 1991-08-08 1992-12-10 Knipex-Werk C. Gustav Putsch, 5600 Wuppertal Pliers with two jaws
DE29703681U1 (en) * 1997-02-28 1997-06-19 Harry P. Will Werkzeugfabrik GmbH & Co KG, 35279 Neustadt pliers
DE10343412A1 (en) * 2003-05-22 2004-12-09 Knipex-Werk C. Gustav Putsch Kg One-hand pliers
CN201086256Y (en) * 2007-08-30 2008-07-16 文登威力高档工具有限公司 Self-adjusting water pump clamp

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TWI546165B (en) 2016-08-21
ES2775205T3 (en) 2020-07-24
CN104139347A (en) 2014-11-12
EP2801444A1 (en) 2014-11-12
CN104139347B (en) 2016-09-07
TW201505787A (en) 2015-02-16
DE202013101985U1 (en) 2013-05-17

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