EP1879721B1 - Pliers - Google Patents

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Publication number
EP1879721B1
EP1879721B1 EP06743261A EP06743261A EP1879721B1 EP 1879721 B1 EP1879721 B1 EP 1879721B1 EP 06743261 A EP06743261 A EP 06743261A EP 06743261 A EP06743261 A EP 06743261A EP 1879721 B1 EP1879721 B1 EP 1879721B1
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EP
European Patent Office
Prior art keywords
pliers
limb
limbs
formations
joint
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.)
Not-in-force
Application number
EP06743261A
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German (de)
French (fr)
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EP1879721A1 (en
Inventor
Andreas Heinsohn
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.)
Knipex Werk C Gustav Putsch KG
Original Assignee
Knipex Werk C Gustav Putsch KG
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Application filed by Knipex Werk C Gustav Putsch KG filed Critical Knipex Werk C Gustav Putsch KG
Publication of EP1879721A1 publication Critical patent/EP1879721A1/en
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Publication of EP1879721B1 publication Critical patent/EP1879721B1/en
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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B26HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26BHAND-HELD CUTTING TOOLS NOT OTHERWISE PROVIDED FOR
    • B26B17/00Hand cutting tools, i.e. with the cutting action actuated by muscle power with two jaws which come into abutting contact
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B25HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25BTOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B7/00Pliers; Other hand-held gripping tools with jaws on pivoted limbs; Details applicable generally to pivoted-limb hand tools
    • B25B7/06Joints
    • B25B7/08Joints with fixed fulcrum

Definitions

  • the invention relates to a pair of pliers such as particular cutting pliers or crimping pliers, with a first and a second pliers leg, which pliers legs cross in a trade with respect to their longitudinal extent, forming on one side of the trade cooperating work areas and on the other side of the trade grip legs, said Pliers legs are only relatively rotatable connected to each other and are provided on both pliers legs for rotating guide cooperating formations, further a rotation axis of the pliers legs outside and working area side of the formations and beyond a pliers legs in the trade each, d. H. on both sides, is covered by a firmly connected to the other pliers legs grip part.
  • the invention has the object to provide a pair of pliers such as particular cutting pliers or crimping tool, which is advantageous in a high translation of the gripping force, also with regard to the forces acting in the industry built.
  • the overlapping part is formed on both sides with the other pliers leg of the same material.
  • the other pliers leg is then longitudinally slotted in this regard in the commercial area.
  • the longitudinal slot is suitably significantly longer, for example, twice or more, as it corresponds to the width of the slot-passing through the forceps leg - in this enforcement area.
  • a corresponding extension of the slot can be made due to heating and then reduced again by upsetting. Due to the shapes of the pliers legs are then inextricably linked together.
  • the engagement part is formed as a separate part. This facilitates assembly without the need for heat. It can be a succession of the individual pliers parts including the cross-over part and the required firm connection of the parts are performed on the same side of the pliers. Again, the connection with the other pliers limbs may be provided in a form-fitting or clamping manner. For example, by the overlapping part is pushed laterally. However, it is preferred in this respect that the engagement part is releasably connected to the other pliers limb, for example by a screw connection. Alternatively, a riveting offers. The latter measures are to be carried out in each case in the same working direction in which the superposition of the individual parts takes place. This even at a riveting, since the rivets can be placed first, then the other parts and finally the protruding rivet heads can be deformed from the same side from which the juxtaposition of the parts is done.
  • the fastening means such as the said screws and / or rivets are also arranged outside of the formations. They also do not serve for rotary guidance. They are only for fixing by means of the separate grip part. They always extend correspondingly in the same pliers leg.
  • the engagement part can be designed very simply with regard to the mentioned function.
  • a plate part preferably with a continuous same cross-section. The latter with the exception of about the connection areas, so the holes for screws or a possible positive locking design.
  • the formations it makes sense to form these circular segment-shaped.
  • the formations in a variant and from a rib on the one pliers limb and adapted to the rib circular segment-shaped groove on the other pliers leg can be made.
  • the rib moves accordingly with a forceps movement in the groove.
  • the formations on both pliers limbs may also be formed like a groove and provided in the formations, each designed to roll on both formations rolling body may be provided. About according to a ball bearing. Thus, a very low-friction interaction of the pliers legs in the trade can be achieved.
  • the pliers legs are biased by a spring in the open position of the pliers.
  • a spring in the covering area of the pliers limbs, ie in the industry, which is supported partly on one and partly on the other pliers limb.
  • this spring may be a leg spring. It can be suitably mounted so that it is not visible from the outside.
  • the one pliers limb is supported on the other pliers limb in the overlapping region by means of a plastic part.
  • the plastic part can be arranged correspondingly on the underside of the gripping part, especially of the plate part.
  • a plastic part and a metal part may be provided.
  • the insert is also important for the fact that the overlap part with a suitable bias attach. This is advantageous for a desired backlash in the joint area.
  • this can also be achieved by a correspondingly integrally molded heel of the grip part in this area.
  • the formations can also be provided that they are designed so that there is a positive locking against a solution of the connector perpendicular to the commercial area. This is done, for example, by a dovetail rear grip of the cooperating formations. In this context, it is then provided that in a selected position nevertheless a removal and thus initially also an assembly is possible.
  • a pair of pliers 1 which is designed as a cutting pliers.
  • the pliers 1 has a first pliers limb 2 and a second pliers limb 3.
  • the pliers legs 2, 3 intersect with respect to their longitudinal extension in a trade 4.
  • the pliers legs 2, 3 are arranged rotatable relative to each other, between a closed position according to Fig. 1 . 2 and an open position according to Fig. 3 ,
  • the rotation is in this case formed so that a rotation axis A is given working area side of the industry 4, which is a virtual axis here.
  • both pliers legs 2, 3 are formed for rotational guidance formations, namely, as is apparent from the 8 and 9 results in a pliers leg 2 a groove 7 and at the other pliers leg 3 a rib 8.
  • the bowing of the formations 7, 8 corresponds to a circle of radius about the axis of rotation A.
  • the one pliers leg 3 is further overlapped in the region of the trade 4 on both sides by the other pliers limb 2 by means of an overlapping part 9. And that is, on the one hand, in the representation according to Fig. 1 on the underside, the gripping part 9 formed directly from the forceps leg 2 itself, and the top side of a separate engagement part 9. In a further detail, this also results from the Fig. 4 and 5 ,
  • the separate engagement part 9 is fixedly connected to the second pliers limb 2 in the embodiment by two screws 10. Both overlapping parts 9 are arranged across with respect to the molding 7 or 8.
  • the engagement part 9 may also be formed of the same material with the pliers leg 2.
  • the pliers leg 3 in the area of the trade is covered on both sides by a uniform material overlap of the second pliers limb 2.
  • the trained in the embodiment as a separate part engagement part 9 is formed as a plate part, specifically in the embodiment with a diamond-shaped floor plan.
  • the narrow sides are assigned here to the side edges of the pliers.
  • the long sides of the diamond-shaped outline of the work areas or the grip areas of the pliers are assigned here to the narrow sides of the diamond-shaped outline of the work areas or the grip areas of the pliers.
  • the separate engagement part 9 is further in the embodiment, as is apparent from the 10 and 11 results, provided on the underside with a plastic insert 11.
  • a plastic insert 11 may be polyamide or PTFE with respect to the plastic.
  • an insert metal part such as a brass part, may be provided. It is essential on the one hand a sliding bearing capability of the insert, on the other hand - if necessary, only - to allow sufficient strength to a bracing attachment of the overlap part.
  • the pliers according to the first embodiment but which may also be provided in the other embodiments, by means of a spring 13 which is concretely designed as a leg spring, according to their opening state Fig. 3 is biased.
  • a recess 14 is provided, working area side of the Ausformung7, in which the spring 13, rotatably inserted about a pin 15, which is realized in the embodiment as a screw inserted.
  • a short leg 16 of the spring 13 is supported on the pliers leg 2, while, in the assembled state and at a position closer than in Fig. 3 illustrated, the other leg 17 is supported on the rib 8 of the forceps leg 3.
  • a transverse groove 18 is formed in the rib 8, in which the leg 17 of the spring 13 rests in the mounted state.
  • the pliers legs 2, 3 are in the trade only rotatable to each other, not about longitudinally adjustable, supported.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Gripping Jigs, Holding Jigs, And Positioning Jigs (AREA)
  • Scissors And Nippers (AREA)
  • Multiple-Way Valves (AREA)
  • Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)
  • Manipulator (AREA)
  • Hand Tools For Fitting Together And Separating, Or Other Hand Tools (AREA)

Abstract

The invention relates to pliers, especially cutting pliers or crimping pliers, comprising limbs which cross in a single joint in the longitudinal direction thereof, form co-operating working regions on one side of the joint, and embody grips on the other side of the joint. The limbs are interconnected in such a way that they can only rotate in relation to each other, and co-operating recesses are provided on both limbs in order to guide the rotation. A rotational axis of the limbs is located outside the recesses, on the side of the working regions, and a first limb in the joint region is respectively covered, i.e. on both sides, by a lapping part which is connected to the other limb in a fixed manner. The aim of the invention is to provide the inventive pliers with an advantageous structure for the transfer of high gripping forces, also in terms of the forces acting in the joint. To this end, the lapping part is connected to the other limb in such a way that it covers the recesses of the first limb.

Description

Die Erfindung betrifft eine Zange wie insbesondere Schneidzange oder Crimpzange, mit einem ersten und einem zweiten Zangenschenkel, welche Zangenschenkel sich bezüglich ihrer Längserstreckung in einem Gewerbe kreuzen, auf einer Seite des Gewerbes zusammenwirkende Arbeitsbereiche ausbilden und auf der anderen Seite des Gewerbes Griffschenkel aufweisen, wobei die Zangenschenkel lediglich relativ zueinander drehbar miteinander verbunden sind und an beiden Zangenschenkeln zur Drehführung zusammenwirkende Ausformungen vorgesehen sind, wobei weiter eine Drehachse der Zangenschenkel außerhalb und arbeitsbereichsseitig der Ausformungen liegt und darüber hinaus ein Zangenschenkel im Gewerbe jeweils, d. h. beidseitig, von einem mit dem anderen Zangenschenkel fest verbundenen Übergriffteil überdeckt ist.The invention relates to a pair of pliers such as particular cutting pliers or crimping pliers, with a first and a second pliers leg, which pliers legs cross in a trade with respect to their longitudinal extent, forming on one side of the trade cooperating work areas and on the other side of the trade grip legs, said Pliers legs are only relatively rotatable connected to each other and are provided on both pliers legs for rotating guide cooperating formations, further a rotation axis of the pliers legs outside and working area side of the formations and beyond a pliers legs in the trade each, d. H. on both sides, is covered by a firmly connected to the other pliers legs grip part.

Insbesondere bei den genannten Schneidzangen und Crimpzangen ist man an einer hohen Krafteinwirkung interessiert, wie sie sich durch die arbeitsbereichsseitig liegende Drehachse der Ausformungen erreichen lässt. Eine solche Zange ist beispielsweise aus der WO 01/17732 A1 bekannt.In particular, in the mentioned cutting tongs and crimping tools is interested in a high force, as they can be achieved by the working area side axis of rotation of the formations. Such a pair of pliers is for example from WO 01/17732 A1 known.

Wenn auch die bekannte Zange bereits eine sehr hohe Übersetzung erbringt, ist sie doch hinsichtlich der Herstellung noch aufwendig. Die einander im Auflagebereich der Zangenschenkel, im Gewerbe, durchdringenden Bereiche der Zangenschenkel ergeben zwar die notwendige Verankerung der Zangenschenkel gegeneinander, sind aber andererseits aufgrund der gegenseitigen Durchdringung fertigungstechnisch kompliziert und lassen kräftemäßig nur bei hohem Aufwand die gewünschte Stabilität erreichen. Die Überdeckung ist nur bezüglich einer vergleichsweise kleinen Fläche gegeben. Zudem ist sie inselartig isoliert.Although the known pliers already provides a very high translation, it is still complicated in terms of production. The mutually in the contact area of the pliers legs, in the trade, penetrating areas of the pliers legs yield the necessary anchoring of the pliers legs against each other, but on the other hand due to the mutual penetration manufacturing technology complicated and can be achieved in terms of strength only at great expense the desired stability. The overlap is given only with respect to a comparatively small area. In addition, it is island-like isolated.

Ausgehend von dem vorbeschriebenen Stand der Technik beschäftigt sich die Erfindung mit der Aufgabe, eine Zange wie insbesondere Schneidzange oder Crimpzange anzugeben, die bei einer hohen Übersetzung der Griffkraft vorteilhaft, auch im Hinblick auf die im Gewerbe wirkenden Kräfte, aufgebaut ist.Based on the above-described prior art, the invention has the object to provide a pair of pliers such as particular cutting pliers or crimping tool, which is advantageous in a high translation of the gripping force, also with regard to the forces acting in the industry built.

Diese Aufgabe ist zunächst und im Wesentlichen beim Gegenstand des Anspruches 1 gelöst, wobei wesentlich ist, dass das Übergriffteil mit dem anderen Zangenschenkel brückenartig übergreifend bezüglich der Ausformung des einen Zängenschenkels verbunden ist. Es ergibt sich ein brückenartiger durchdringungsfreier Übergriff des einen Zangenschenkels durch den anderen Zangen schenkel. Und zwar beidseitig. Hierdurch ist eine hohe Stabilität erreicht. Zugleich lässt sich hierdurch auch in einfacher Weise, etwa bei geeigneter Breite des Brückenteils, erreichen, dass der Bereich der Zangenschenkel, in dem eine offen liegende Relativbewegung zueinander auftritt, deutlich reduziert ist.This object is achieved first and foremost in the subject matter of claim 1, wherein it is essential that the over-grip part is connected to the other pliers leg in a bridge-like manner with respect to the shaping of the one pliers limb. It results in a bridge-like penetration-free attack of a pliers leg through the other pliers thighs. And on both sides. As a result, a high stability is achieved. At the same time, this also makes it possible in a simple manner, for example with a suitable width of the bridge part, to achieve that the region of the forceps limbs in which an open relative movement occurs relative to one another is significantly reduced.

Es kann vorgesehen sein, dass das Übergriffteil beidseitig mit dem anderen Zangenschenkel materialeinheitlich ausgebildet ist. Der andere Zangenschenkel ist dann diesbezüglich im Gewerbebereich längsgeschlitzt. Der Längsschlitz ist hierbei geeigneterweise deutlich länger, beispielsweise um das Zweifache oder mehr, als es der Breite des den Schlitz durchsetzenden Zangenschenkels - in diesem Durchsetzungsbereich - entspricht. Zum Zusammenbau kann aufgrund einer Erwärmung eine entsprechende Erweiterung des Schlitzes vorgenommen werden und sodann durch Stauchen wieder reduziert werden. Aufgrund der Ausformungen sind die Zangenschenkel dann auch unlösbar miteinander sogleich verbunden.It can be provided that the overlapping part is formed on both sides with the other pliers leg of the same material. The other pliers leg is then longitudinally slotted in this regard in the commercial area. The longitudinal slot is suitably significantly longer, for example, twice or more, as it corresponds to the width of the slot-passing through the forceps leg - in this enforcement area. For assembly, a corresponding extension of the slot can be made due to heating and then reduced again by upsetting. Due to the shapes of the pliers legs are then inextricably linked together.

Andererseits ist es bevorzugt, dass das Übergriffteil als gesondertes Teil ausgebildet ist. Dies erleichtert die Montage, ohne dass Wärmeeinwirkung erforderlich ist. Es kann eine Aufeinanderlegung der einzelnen Zangenteile einschließlich des Übergriffteils erfolgen und die erforderliche feste Verbindung der Teile an derselben Seite der Zange durchgeführt werden. Auch hierbei kann die Verbindung mit dem anderen Zangenschenkel form- oder klemmschlüssig vorgesehen sein. Etwa indem das Übergriffteil seitlich aufgeschoben wird. Bevorzugt ist allerdings insoweit, dass das Übergriffteil mit dem anderen Zangenschenkel lösbar, und zwar beispielsweise durch eine Verschraubung, verbunden ist. Alternativ bietet sich auch eine Vernietung an. Letztere Maßnahmen sind jeweils in derselben Arbeitsrichtung durchzuführen, in der auch die Übereinanderlage der einzelnen Teile erfolgt. Dies sogar bei einer Vernietung, da die Nieten zunächst aufgelegt werden können, danach die weiteren Teile und schließlich die überstehenden Nietköpfe von derselben Seite verformt werden können, von der die Aufeinanderlage der Teile erfolgt ist.On the other hand, it is preferred that the engagement part is formed as a separate part. This facilitates assembly without the need for heat. It can be a succession of the individual pliers parts including the cross-over part and the required firm connection of the parts are performed on the same side of the pliers. Again, the connection with the other pliers limbs may be provided in a form-fitting or clamping manner. For example, by the overlapping part is pushed laterally. However, it is preferred in this respect that the engagement part is releasably connected to the other pliers limb, for example by a screw connection. Alternatively, a riveting offers. The latter measures are to be carried out in each case in the same working direction in which the superposition of the individual parts takes place. This even at a riveting, since the rivets can be placed first, then the other parts and finally the protruding rivet heads can be deformed from the same side from which the juxtaposition of the parts is done.

Die Befestigungsmittel wie etwa die genannten Schrauben und/ oder Nieten sind auch außerhalb der Ausformungen angeordnet. Sie dienen auch nicht zur Drehführung. Sie dienen lediglich zur Festsetzung mittels des gesonderten Übergriffteils. Sie erstrecken sich entsprechend immer in demselben Zangenschenkel.The fastening means such as the said screws and / or rivets are also arranged outside of the formations. They also do not serve for rotary guidance. They are only for fixing by means of the separate grip part. They always extend correspondingly in the same pliers leg.

Das Übergriffteil kann hinsichtlich der angesprochenen Funktion sehr einfach ausgebildet sein. Beispielsweise als Plattenteil, bevorzugt mit einem durchgehend gleichen Querschnitt. Letzteres mit Ausnahme etwa der Verbindungsbereiche, also der Bohrungen für Schrauben oder einer eventuellen Formschlussausgestaltung.The engagement part can be designed very simply with regard to the mentioned function. For example, as a plate part, preferably with a continuous same cross-section. The latter with the exception of about the connection areas, so the holes for screws or a possible positive locking design.

Hinsichtlich der Ausformungen bietet es sich an, diese kreisabschnittsförmig auszubilden. Hierbei können die Ausformungen in einer Variante und aus einer Rippe an dem einen Zangenschenkel und einer an die Rippe angepassten kreisabschnittsförmigen Nut an dem anderen Zangenschenkel bestehen. Die Rippe bewegt sich entsprechend bei einer Zangenbewegung in der Nut. Alternativ können aber auch die Ausformungen an beiden Zangenschenkeln nutartig ausgebildet sein und in den Ausformungen aufgenommene, jeweils zum Abrollen an beiden Ausformungen ausgebildete Rollkörper vorgesehen sein. Etwa entsprechend einem Kugellager. So kann eine sehr reibungsarme Zusammenwirkung der Zangenschenkel im Gewerbe erreicht werden.With regard to the formations, it makes sense to form these circular segment-shaped. In this case, the formations in a variant and from a rib on the one pliers limb and adapted to the rib circular segment-shaped groove on the other pliers leg can be made. The rib moves accordingly with a forceps movement in the groove. Alternatively, however, the formations on both pliers limbs may also be formed like a groove and provided in the formations, each designed to roll on both formations rolling body may be provided. About according to a ball bearing. Thus, a very low-friction interaction of the pliers legs in the trade can be achieved.

Weiter ist bevorzugt, dass die Zangenschenkel mittels einer Feder in die Öffnungsstellung der Zange vorgespannt sind. Hierzu ist insbesondere bevorzugt, im Überdeckungsbereich der Zangenschenkel, also im Gewerbe, eine Feder vorzusehen, die sich teils an dem einen und teils an dem anderen Zangenschenkel abstützt. Vorteilhafterweise kann diese Feder eine Schenkelfeder sein. Sie kann entsprechend so angebracht sein, dass sie von außen nicht sichtbar ist.It is further preferred that the pliers legs are biased by a spring in the open position of the pliers. For this purpose, it is particularly preferred to provide a spring in the covering area of the pliers limbs, ie in the industry, which is supported partly on one and partly on the other pliers limb. Advantageously, this spring may be a leg spring. It can be suitably mounted so that it is not visible from the outside.

Bevorzugt ist auch, dass der eine Zangenschenkel sich an dem anderen Zangenschenkel im Übergriffbereich vermittels eines Kunststoffteiles abstützt. Dies nicht in dem unmittelbar im Hinblick auf die Ausformungen zusammenwirkenden Bereich der Zangenschenkel, sondern in dem Zusammenwirkungsbereich des übergriffenen Zangenschenkels mit dem Übergriffteil. Das Kunststoffteil kann entsprechend an der Unterseite des Übergriffteils, speziell des Plattenteils, angeordnet sein. Anstelle eines Kunststoffteils kann auch ein Metallteil vorgesehen sein. Vorteilhafterweise ein solches, das gute Gleitlagereigenschaften hat. Wie es auch bezüglich des Kunststoffteils auf diese Eigenschaft zunächst ankommen kann. Alternativ oder ergänzend ist aber das Einlegeteil auch dafür von Bedeutung, dass sich das Übergreifteil mit geeigneter Vorspannung befestigen lässt. Dies ist für eine gewünschte Spielfreiheit im Gelenkbereich vorteilhaft. Nicht zuletzt, bei geeigneter Werkstoffwahl des Übergriffteils, kann dies auch durch einen entsprechend einteilig angeformten Absatz des Übergriffsteils in diesem Bereich erreicht sein.It is also preferred that the one pliers limb is supported on the other pliers limb in the overlapping region by means of a plastic part. This not in the immediately cooperating with respect to the formations area of the pliers legs, but in the interaction region of the overlapped pliers leg with the engagement part. The plastic part can be arranged correspondingly on the underside of the gripping part, especially of the plate part. Instead of a plastic part and a metal part may be provided. Advantageously, one which has good sliding bearing properties. As it may also arrive with regard to the plastic part on this property first. Alternatively or additionally, however, the insert is also important for the fact that the overlap part with a suitable bias attach. This is advantageous for a desired backlash in the joint area. Not least, with a suitable choice of material of the engagement part, this can also be achieved by a correspondingly integrally molded heel of the grip part in this area.

Hinsichtlich der Ausformungen kann auch vorgesehen sein, dass sie so ausgebildet sind, dass sich eine Formschlusssicherung gegen eine Lösung der Steckverbindung senkrecht zur Gewerbefläche ergibt. Dies etwa durch einen Schwalbenschwanz-Hintergriff der miteinander zusammenwirkenden Ausformungen. In diesem Zusammenhang ist dann vorgesehen, dass in einer ausgewählten Stellung gleichwohl eine Entnahme und damit zunächst auch eine Montage ermöglicht ist.With regard to the formations can also be provided that they are designed so that there is a positive locking against a solution of the connector perpendicular to the commercial area. This is done, for example, by a dovetail rear grip of the cooperating formations. In this context, it is then provided that in a selected position nevertheless a removal and thus initially also an assembly is possible.

Nicht zuletzt ist bevorzugt, dass die Zangenschenkel im Gewerbe ohne einander zu durchdringen aufeinander liegen.Last but not least is preferred that the pliers legs in the industry without each other to penetrate each other.

Nachstehend ist die Erfindung des Weiteren anhand der beigefügten Zeichnung, die jedoch lediglich ein Ausführungsbeispiel darstellt, erläutert. Hierbei zeigt:

Fig. 1
eine perspektivische Ansicht der Zange;
Fig. 2
eine Draufsicht auf die Zange gemäß Fig. 1, in geschlosse- ner Stellung, mit Darstellung der verdeckt liegenden Aus- formungen, bei abgenommenen Übergriffteil;
Fig. 3
eine Darstellung gemäß Fig. 2, bei geöffneter Zange;
Fig. 4
einen Querschnitt durch den Gegenstand gemäß Fig. 3, ge- schnitten entlang der Linie IV-IV, jedoch mit Übergriffteil;
Fig. 5
einen Querschnitt durch den Gegenstand gemäß Fig. 3, ge- schnitten entlang der Linie V-V;
Fig. 6
eine Seitenansicht der Zange gemäß Fig. 1;
Fig. 7
eine Seitenansicht der Zange gemäß Fig. 1, gegenüberlie- gende Seite zu der Darstellung gemäß Fig. 6;
Fig. 8
eine Darstellung des einen Zangenschenkels, gesehen auf die Ausformungen;
Fig. 9
eine Darstellung des anderen Zangenschenkels, gesehen auf die Ausformungen;
Fig. 10
eine Unteransicht des Übergriffteils;
Fig. 11
einen Schnitt durch den Gegenstand gemäß Fig. 10, ge- schnitten entlang der Linie XI-XI;
Fig. 12
eine alternative Ausbildung der Zangenform mit Kugel- Körpern im Gewerbe;
Fig. 13
einen Querschnitt durch den Gegenstand gemäß Fig. 12, geschnitten entlang der Linie XIII-XIII.
In the following, the invention will be explained further with reference to the attached drawing, which, however, represents only one embodiment. Hereby shows:
Fig. 1
a perspective view of the pliers;
Fig. 2
a plan view of the pliers according to Fig. 1 , in closed position, showing the concealed formations, with removed grip part;
Fig. 3
a representation according to Fig. 2 with open forceps;
Fig. 4
a cross section through the article according to Fig. 3 , sectioned along the line IV-IV, but with grip part;
Fig. 5
a cross section through the article according to Fig. 3 , cut along the line VV;
Fig. 6
a side view of the pliers according to Fig. 1 ;
Fig. 7
a side view of the pliers according to Fig. 1 , Opposite page to the illustration according to Fig. 6 ;
Fig. 8
an illustration of a pliers limb, as seen on the formations;
Fig. 9
a representation of the other forceps limb, as seen on the formations;
Fig. 10
a bottom view of the engagement part;
Fig. 11
a section through the article according to Fig. 10 , sectioned along the line XI-XI;
Fig. 12
an alternative embodiment of the forceps form with spherical bodies in the industry;
Fig. 13
a cross section through the article according to Fig. 12 , cut along the line XIII-XIII.

Dargestellt und beschrieben ist, zunächst mit Bezug zu den Fig. 1 bis 5, eine Zange 1, die als Schneidzange ausgebildet ist.Shown and described, first with reference to the Fig. 1 to 5 , a pair of pliers 1, which is designed as a cutting pliers.

Die Zange 1 weist einen ersten Zangenschenkel 2 und einen zweiten Zangenschenkel 3 auf. Die Zangenschenkel 2, 3 kreuzen sich bezüglich ihrer Längserstreckung in einem Gewerbe 4.The pliers 1 has a first pliers limb 2 and a second pliers limb 3. The pliers legs 2, 3 intersect with respect to their longitudinal extension in a trade 4.

Auf der einen Seite des Gewerbes 4 sind Griffschenkel 5 ausgebildet und auf der anderen Seite des Gewerbes 4 Arbeitsbereiche 6, die entsprechend der Ausbildung als Schneidzange Schneiden aufweisen.On one side of the industry 4 grip legs 5 are formed and on the other side of the industry 4 work areas 6, which have according to the design as a cutting tong cutting.

Die Zangenschenkel 2, 3 sind relativ zueinander drehbar angeordnet, zwischen einer Geschlossenstellung gemäß Fig. 1, 2 und einer Öffnungsstellung gemäß Fig. 3.The pliers legs 2, 3 are arranged rotatable relative to each other, between a closed position according to Fig. 1 . 2 and an open position according to Fig. 3 ,

Die Drehbarkeit ist hierbei so ausgebildet, dass eine Drehachse A arbeitsbereichsseitig des Gewerbes 4 gegeben ist, wobei es sich hier um eine virtuelle Achse handelt.The rotation is in this case formed so that a rotation axis A is given working area side of the industry 4, which is a virtual axis here.

An beiden Zangenschenkeln 2, 3 sind Ausformungen zur Drehführung ausgebildet, nämlich, wie sich aus den Fig. 8 und 9 ergibt, an dem einen Zangenschenkel 2 eine Nut 7 und an dem anderen Zangenschenkel 3 eine Rippe 8. Die Bogenführung der Ausformungen 7, 8 entspricht einem Kreis mit Radius um die Drehachse A.At both pliers legs 2, 3 are formed for rotational guidance formations, namely, as is apparent from the 8 and 9 results in a pliers leg 2 a groove 7 and at the other pliers leg 3 a rib 8. The bowing of the formations 7, 8 corresponds to a circle of radius about the axis of rotation A.

Der eine Zangenschenkel 3 ist weiter im Bereich des Gewerbes 4 beidseitig von dem anderen Zangenschenkel 2 mittels eines Übergriffteils 9 übergriffen. Und zwar ist einerseits, in der Darstellung gemäß Fig. 1 unterseitig, das Übergriffteil 9 unmittelbar von dem Zangenschenkel 2 selbst gebildet, und oberseitig von einem gesonderten Übergriffteil 9. In weiterer Einzelheit ergibt sich dies auch aus den Fig. 4 und 5.The one pliers leg 3 is further overlapped in the region of the trade 4 on both sides by the other pliers limb 2 by means of an overlapping part 9. And that is, on the one hand, in the representation according to Fig. 1 on the underside, the gripping part 9 formed directly from the forceps leg 2 itself, and the top side of a separate engagement part 9. In a further detail, this also results from the Fig. 4 and 5 ,

Das gesonderte Übergriffteil 9 ist mit dem zweiten Zangenschenkel 2 beim Ausführungsbeispiel durch zwei Schrauben 10 fest verbunden. Beide Übergriffteile 9 sind übergreifend bezüglich der Ausformung 7 bzw. 8 angeordnet.The separate engagement part 9 is fixedly connected to the second pliers limb 2 in the embodiment by two screws 10. Both overlapping parts 9 are arranged across with respect to the molding 7 or 8.

Alternativ, was beim Ausführungsbeispiel nicht dargestellt ist, kann das Übergriffteil 9 auch materialeinheitlich mit dem Zangenschenkel 2 ausgebildet sein. In diesem Falle ist der Zangenschenkel 3 im Bereich des Gewerbes beidseitig von einem materialeinheitlichen Übergriff des zweiten Zangenschenkels 2 überdeckt.Alternatively, which is not shown in the embodiment, the engagement part 9 may also be formed of the same material with the pliers leg 2. In this case, the pliers leg 3 in the area of the trade is covered on both sides by a uniform material overlap of the second pliers limb 2.

Das beim Ausführungsbeispiel als gesondertes Teil ausgebildete Übergriffteil 9 ist ersichtlich als Plattenteil gebildet, konkret beim Ausführungsbeispiel mit einem rautenförmigen Grundriss. Die Schmalseiten sind hierbei den Seitenkanten der Zange zugeordnet. Dagegen die Langseiten des rautenförmigen Grundrisses den Arbeitsbereichen bzw. den Griffbereichen der Zange.The trained in the embodiment as a separate part engagement part 9 is formed as a plate part, specifically in the embodiment with a diamond-shaped floor plan. The narrow sides are assigned here to the side edges of the pliers. In contrast, the long sides of the diamond-shaped outline of the work areas or the grip areas of the pliers.

Das gesonderte Übergriffteil 9 ist weiter beim Ausführungsbeispiel, wie sich aus den Fig. 10 und 11 ergibt, unterseitig mit einem Kunststoffeinlegeteil 11 versehen. Es kann sich hier hinsichtlich des Kunststoffs um Polyamid oder PTFE handeln. Alternativ kann auch ein Einlegemetallteil, wie zum Beispiel ein Messingteil, vorgesehen sein. Wesentlich ist einerseits eine Gleitlagerfähigkeit des Einlegeteils, andererseits - gegebenenfalls auch nur - eine genügende Festigkeit um eine verspannende Befestigung des Übergreifteils zu ermöglichen.The separate engagement part 9 is further in the embodiment, as is apparent from the 10 and 11 results, provided on the underside with a plastic insert 11. It may be polyamide or PTFE with respect to the plastic. Alternatively, an insert metal part, such as a brass part, may be provided. It is essential on the one hand a sliding bearing capability of the insert, on the other hand - if necessary, only - to allow sufficient strength to a bracing attachment of the overlap part.

Alternativ zu den dargestellten und beschriebenen Ausformungen 7, 8 können auch auf beiden Zangenschenkeln einander im montierten Zustand zugewandte Nuten ausgebildet sein, in welche Kugeln 12, etwa entsprechend einem Kugellager, eingelegt sind. Die Abstützung erfolgt dann gegenseitig nur über die Kugeln. Endseitig der Nuten muss eine Aufstemmung oder dgl. vorgesehen sein, damit die Kugeln nicht herausrollen können. Eine solche Ausführungsform ist in den Fig. 12 und 13 dargestellt.As an alternative to the illustrated and described embodiments 7, 8 can also be formed on both pliers legs facing each other in the assembled state grooves, in which balls 12, approximately corresponding to a ball bearing, are inserted. The support is then mutually only via the balls. At the end of the grooves a Aufstemmung or the like must be provided so that the balls can not roll out. Such an embodiment is in the FIGS. 12 and 13 shown.

Von Bedeutung ist weiterhin, dass die Zange gemäß der ersten Ausführungsform, was aber auch bei den weiteren Ausführungsformen vorgesehen sein kann, mittels einer Feder 13, die konkret als Schenkelfeder ausgebildet ist, in ihren Öffnungszustand gemäß Fig. 3 vorgespannt ist. Hierzu ist in dem Zangenschenkel 2, siehe Fig. 8, eine Ausnehmung 14 vorgesehen, arbeitsbereichsseitig der Ausformung7, in welche die Feder 13, drehbeweglich um einen Zapfen 15, der beim Ausführungsbeispiel als Schraube realisiert ist, eingefügt ist. Ein kurzer Schenkel 16 der Feder 13 stützt sich an dem Zangenschenkel 2 ab, während, im montierten Zustand und bei einer Stellung enger als in Fig. 3 dargestellt, der andere Schenkel 17 sich an der Rippe 8 des Zangenschenkels 3 abstützt. Hierzu ist in der Rippe 8 eine Quernut 18 ausgebildet, in welcher im montierten Zustand der Schenkel 17 der Feder 13 einliegt.Of importance is further that the pliers according to the first embodiment, but which may also be provided in the other embodiments, by means of a spring 13 which is concretely designed as a leg spring, according to their opening state Fig. 3 is biased. This is in the pliers leg 2, see Fig. 8 , a recess 14 is provided, working area side of the Ausformung7, in which the spring 13, rotatably inserted about a pin 15, which is realized in the embodiment as a screw inserted. A short leg 16 of the spring 13 is supported on the pliers leg 2, while, in the assembled state and at a position closer than in Fig. 3 illustrated, the other leg 17 is supported on the rib 8 of the forceps leg 3. For this purpose, a transverse groove 18 is formed in the rib 8, in which the leg 17 of the spring 13 rests in the mounted state.

Die Zangenschenkel 2, 3 sind im Gewerbe lediglich zueinander drehbar, nicht etwa längsverstellbar, gehaltert.The pliers legs 2, 3 are in the trade only rotatable to each other, not about longitudinally adjustable, supported.

Claims (15)

  1. Pliers (1) such as in particular a cutting pliers or a crimping pliers, having pliers limbs (2, 3), which pliers limbs (2, 3) cross each other with respect to their elongate extent in a joint (4), form interacting working regions (6) on one side of the joint (4) and have gripping limbs (5) on the other side of the joint (4), the pliers limbs (2, 3) being connected to one another only to be rotatable relative to one another and interacting formations (7, 8) being provided on the two pliers limbs (2, 3) for rotational guidance, furthermore an axis of rotation (A) of the pliers limbs (2, 3) lying outside and on the working region side of the formations (7, 8), and moreover, one (3) of the pliers limbs being covered over in the joint (4), i.e. on both sides, by an overlapping member (9) which is fixedly connected to the other pliers limb (2), furthermore, the overlapping member (9) being connected to the other pliers limb (2) in bridge-type overlapping manner relative to the formations (7, 8) of the one pliers limb (3).
  2. Pliers according to Claim 1, characterised in that the overlapping member (9) is formed integrally with the other pliers limb (2) on both sides.
  3. Pliers according to Claim 2, characterised in that in the case of an integral construction of the overlapping members (9), a longitudinal slot is formed between the overlapping members in the other pliers limb, the length of the slot significantly exceeding the width of the other pliers limb in the joint region, the length of the slot of the other pliers limb preferably exceeding the associated width of the one pliers limb by a factor of two or more.
  4. Pliers according to Claim 1, characterised in that the overlapping member (9) is formed at least on one side as a separate part.
  5. Pliers according to Claim 4, characterised in that the separate overlapping member (9) is releasably connected to the other pliers limb (2).
  6. Pliers according to either of Claims 4 and 5, characterised in that the separate overlapping member (9) is screwed to the other pliers limb (2).
  7. Pliers according to either of Claims 4 and 5, characterised in that the separate overlapping member (9) is riveted to the other pliers limb (2).
  8. Pliers according to any of Claims 4 to 7, characterised in that the separate overlapping member (9) is formed as a plate member.
  9. Pliers according to any of the preceding claims, characterised in that the formations (7, 8) are in the form of portions of a circle.
  10. Pliers according to Claim 9, characterised in that the part circular shaped formations (7, 8) consist of a rib (8) on the one pliers limb (3) and a groove (7) on the other pliers limb (2), the groove being matched to the rib (8) and being of part circular form.
  11. Pliers according to any of the preceding claims, characterised in that the formations on the two pliers limbs (2, 3) are formed as grooves and that rolling bodies (12) are provided, accommodated in the formations, the bodies being formed in each case to roll on the two formations.
  12. Pliers according to any of the preceding claims, characterised in that a spring (13) is provided in the covered-over region of the pliers limbs (2, 3), the spring being supported in part on the one pliers limb and in part on the other pliers limb, the spring (13) preferably being not visible from the outside and /or the spring (13) preferably being a leg spring.
  13. Pliers according to any of the preceding claims, characterised in that the formations (7, 8) stand in overlap with one another at right angles to the joint surface, insertion connection or pull-out release of the pliers limbs in a direction perpendicular to the joint surface being possible in a selected position of the pliers limbs (2, 3).
  14. Pliers according to any of the preceding claims, characterised in that the pliers limbs (2, 3) lie against one another in the joint without passing through one another.
  15. Pliers according to any of the preceding claims, characterised in that the one pliers limb (3) is supported on the other pliers limb (2) in the overlapping region by means of a plastics part (11), which is preferably formed on the underside of the separate overlapping member (9).
EP06743261A 2005-04-09 2006-04-07 Pliers Not-in-force EP1879721B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102005016356A DE102005016356A1 (en) 2005-04-09 2005-04-09 tongs
PCT/EP2006/061429 WO2006108804A1 (en) 2005-04-09 2006-04-07 Pliers

Publications (2)

Publication Number Publication Date
EP1879721A1 EP1879721A1 (en) 2008-01-23
EP1879721B1 true EP1879721B1 (en) 2010-06-30

Family

ID=36645625

Family Applications (1)

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EP06743261A Not-in-force EP1879721B1 (en) 2005-04-09 2006-04-07 Pliers

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US (1) US7845255B2 (en)
EP (1) EP1879721B1 (en)
CN (1) CN101184583B (en)
AT (1) ATE472391T1 (en)
DE (2) DE102005016356A1 (en)
ES (1) ES2345398T3 (en)
RU (1) RU2398669C2 (en)
WO (1) WO2006108804A1 (en)

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DE102009059198A1 (en) 2009-12-17 2011-06-22 KNIPEX-Werk C. Gustav Putsch KG, 42349 tongs
CN101890681A (en) * 2010-06-07 2010-11-24 王光良 Strontium-running fold strontium pliers and processing method
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Also Published As

Publication number Publication date
CN101184583B (en) 2011-12-07
EP1879721A1 (en) 2008-01-23
RU2007141493A (en) 2009-05-20
DE102005016356A1 (en) 2006-10-12
RU2398669C2 (en) 2010-09-10
ATE472391T1 (en) 2010-07-15
ES2345398T3 (en) 2010-09-22
DE502006007329D1 (en) 2010-08-12
WO2006108804A1 (en) 2006-10-19
US7845255B2 (en) 2010-12-07
CN101184583A (en) 2008-05-21
US20090049960A1 (en) 2009-02-26

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