EP3563973B1 - Forceps - Google Patents

Forceps Download PDF

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Publication number
EP3563973B1
EP3563973B1 EP19156237.0A EP19156237A EP3563973B1 EP 3563973 B1 EP3563973 B1 EP 3563973B1 EP 19156237 A EP19156237 A EP 19156237A EP 3563973 B1 EP3563973 B1 EP 3563973B1
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EP
European Patent Office
Prior art keywords
connecting bolt
fixed
leg
jaw
movable
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EP19156237.0A
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German (de)
French (fr)
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EP3563973A1 (en
Inventor
Christof Geiregger
Stefan Übeleis
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Gedore Holding GmbH
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Gedore Holding GmbH
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Publication of EP3563973A1 publication Critical patent/EP3563973A1/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
    • B25B7/06—Joints
    • B25B7/10—Joints with adjustable fulcrum
    • 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
    • B25B7/04—Jaws adjustable

Definitions

  • the invention relates to pliers with a movable limb forming a movable jaw and a fixed limb forming a fixed jaw, the fixed limb being connected to the movable limb for limited pivoting movement via a connecting bolt and the connecting bolt reaching through an opening in the fixed limb, the connecting bolt moving along the Opening for setting an jaw width between the movable jaw and the fixed jaw can be displaced, the connecting bolt being displaceable in its longitudinal axis relative to the movable limb and the fixed limb between an end position blocking a sliding movement of the fixed limb relative to the movable limb and an end position releasing the sliding movement, the connecting bolt being in the the sliding movement releasing end position is designed to be lockable.
  • Such pliers are known from the prior art.
  • the DE 39 29 323 C2 a pair of pliers that has basically proven itself in normal use.
  • pliers have a movable jaw which can be pivoted about a connecting bolt relative to the fixed jaw via a joint with the movable pliers arm.
  • the connecting bolt is guided in a slot, which has a toothing on opposite side surfaces, which meshes with a toothing on the connecting bolt.
  • a relative arrangement of the movable jaw to the fixed jaw is fixed via the teeth in order to set a jaw width between the movable jaw and the fixed jaw.
  • the connecting bolt In order to be able to move the movable jaw along the opening relative to the fixed jaw, the connecting bolt has a tooth-free area in addition to a toothed area.
  • the connecting bolt is mounted so that it can be displaced in its longitudinal axis direction relative to the fixed jaw, so that it can be displaced between two end positions.
  • the toothing of the connecting bolt engages with the toothing in the opening of the fixed jaw, so that a sliding movement of the fixed leg to the movable pliers leg or the movable jaw to the fixed jaw is blocked.
  • the connecting bolt is now moved into its second end position, the toothing of the connecting bolt comes out Engaging with the teeth in the opening.
  • the connecting bolt is then arranged with its toothing-free area in the opening and can be displaced in the direction of the longitudinal axis of the opening. This adjusts the mouth width, ie the distance between the movable jaw and the fixed jaw.
  • the connecting bolt is held in the first end position by a leaf spring, in which the toothing of the connecting bolt engages in the toothing in the opening.
  • the movement of the connecting bolt in its longitudinal axis direction therefore takes place against the spring tension of the leaf spring.
  • a generic pliers is from DE 10 2005 035 019 A1 famous. These previously known pliers have a slide on a surface of a leg which has a receptacle for the connecting bolt. The recording is followed by an inclined surface with which the connecting bolt is displaced from the blocking to the releasing position when the slide is displaced in the axial direction of the opening accommodating the connecting bolt. The slide can be locked in the position releasing the sliding movement.
  • the invention is therefore based on the object of further developing a generic pair of pliers in such a way that the displacement of the movable jaw relative to the fixed jaw and thus the setting of the jaw width is significantly simplified.
  • a pair of pliers according to claim 1 is provided. Accordingly, it is provided that the connecting bolt, after its transfer from the toothed to the non-toothed position, in which the sliding movement is released can be locked, so that returning the connecting bolt to the toothed position can be clearly manipulated, in which the locking of the connecting bolt in the end position releasing the sliding movement must be actively canceled and not already done by a force loading the connecting bolt against spring tension, for example applied by the thumb, is lifted.
  • the thumb can therefore be used for other purposes, for example to assist in the displacement of the movable jaw relative to the fixed jaw in order to increase or decrease the jaw width.
  • the connecting bolt has a locking device with which the connecting bolt can be fixed in its axial mobility relative to the fixed leg on the latter.
  • An alternative embodiment not according to the invention provides that the connecting bolt can be locked by a locking device arranged on the movable pliers arm.
  • the locking device In the end position releasing the sliding movement, the locking device can be adjusted between the teeth arranged in the opening and the teeth arranged on the connecting bolt by a pivoting movement of the movable limb relative to the fixed limb.
  • the movable limb of the pliers is pivoted relative to the fixed limb after the connecting bolt has been transferred to the end position releasing the sliding movement.
  • the locking device arranged on the connecting bolt then comes into contact with the fixed arm, preferably in the area of the surfaces delimiting the side surfaces of the opening and preferably aligned at right angles thereto, so that the connecting bolt is prevented from moving into the end position blocking the sliding movement pushed back to be, for example by means of a leaf spring known from the prior art.
  • the connecting bolt can be locked by a locking device arranged on the movable limb of the pliers
  • the locking is performed by a pivoting movement of the movable limb relative to the fixed limb, for example by the locking device arranged on the movable limb of the pliers engaging in the connecting bolt and locks it in the end position releasing the sliding movement.
  • the opening has teeth arranged on at least one of its longitudinal sides and that the connecting bolt has teeth that mesh with it, which extend over a partial area in the direction of the longitudinal axis of the connecting bolt and that the meshing teeth of the connecting bolt can be displaced by displacement of the The connecting bolt can be disengaged from the teeth in the opening.
  • the locking device is preferably designed as a plate-shaped element which is connected to the connecting bolt. This plate-shaped element can be used to rest on the fixed leg.
  • the plate-shaped element is arranged on the movable pliers arm, it is advantageous if this engages in a form-fitting manner in a corresponding recess in the connecting pin.
  • This can be, for example, a circumferential groove in the area of the non-toothed section of the connecting bolt.
  • the plate-shaped element is designed to be rigid.
  • the fixed leg has a recess into which the locking device can be latched.
  • the blocking device can also be designed in the form of a pin, so that the corresponding recess is provided as a bore, in which the blocking device engages when the movable pliers arm is pivoted.
  • the connecting bolt relative to the fixed leg is not rotatable and the movable leg is rotatably mounted about the connecting bolt or that the Connecting bolt is mounted non-rotatably relative to the movable leg and rotatable relative to the fixed leg.
  • a pair of pliers 1 which has a movable pliers leg 2 and a fixed leg 3 .
  • the pliers limb 2 and the fixed limb 3 have at one end a gripping element 4 which consists of a plastic covering which encloses the metal end of the pliers limb 2 or the fixed limb 3 .
  • the fixed leg 3 has a fixed jaw 5 at its end opposite the gripping element 4 . Furthermore, a movable jaw 6 is provided, which is arranged to be displaceable relative to the fixed jaw 5 along a section 7 of the fixed leg 3 .
  • the jaw 6 has at its end facing the pliers limb 2 a recess 8 into which a pin 9 of the pliers limb 2 engages.
  • an opening 10 is formed as a slot, which has teeth 11 on each of the two parallel side surfaces.
  • the jaw 6 is U-shaped in cross-section in a partial section at its end facing the pliers arm 2 and overlaps the section 7 of the fixed arm 3 with a groove formed in this way located on section 7.
  • the end of the pliers arm 2 facing the fixed arm 3 is U-shaped in cross section and has a recess 12 which overlaps the section 7 of the fixed arm 3 .
  • the pliers arm 2 has two webs 13 running parallel to one another, which are arranged at a distance from one another, forming the recess 12 .
  • each web 13 has a bore 14 in which a connecting bolt 15 is arranged in such a way that the pliers arm 2 can be pivoted to a limited extent about the connecting bolt 15 relative to the fixed arm 3 .
  • the limitation of the pivotability of the pliers arm 2 relative to the fixed arm 3 is specified by a stop cam 16 which can be brought into contact with a corresponding stop surface 17 on the fixed arm 3 .
  • the connecting bolt 15 has a finger attachment 18 via which the connecting bolt 15 can be displaced in its longitudinal axis direction. The displacement takes place against a leaf spring 19, which is screwed to the pliers handle 2 (see Fig figure 2 ).
  • the connecting bolt 15 has a first area with teeth which mesh with the teeth 11 . At the connecting bolt 15, the area with the teeth is followed by an area without teeth.
  • the length of the connecting bolt 15 is selected in such a way that the connecting bolt 15, which in its first end position is arranged with the toothed area in the toothing 11, can be displaced via the finger attachment 18 in such a way that the connecting bolt 15 in its second end position can only be connected to the non-toothed area is guided in the opening 10, so that the connecting bolt 15 is displaceable in this end position in the direction of the longitudinal axis of the opening 10.
  • a locking device 20 in the form of a plate-shaped element 21 is also arranged on the connecting bolt 15 .
  • the plate-shaped elements 21 arranged diametrically opposite one another on the connecting bolt 15 are arranged in such a way that they run in the direction of the longitudinal axis of the opening 10, the width of the plate-shaped elements 21 being smaller than the distance between the tips of the teeth of the two oppositely arranged toothings 11.
  • the connecting pin 15 can thus be transferred via the leaf spring 19 back into an end position blocking the sliding movement.
  • the plate-shaped elements 21 are arranged diametrically opposite one another on the connecting bolt 15 .
  • figure 2 shows a guide bar 22 which is arranged on the jaw 6 and is guided in a groove 23 in the area 7 of the fixed jaw 5 .
  • Corresponding grooves 23 are arranged on both sides of the area 7 and serve to guide guide webs 22 arranged opposite one another on the jaw 6.
  • the Figures 2 to 7 show the pliers 1 with an open pliers mouth 24, which is determined by surfaces 25 of the pliers leg 2 and the fixed leg 3.

Description

Die Erfindung betrifft eine Zange mit einem beweglichen, eine bewegliche Backe ausbildenden Zangenschenkel und einem, eine Festbacke ausbildenden Festschenkel, wobei der Festschenkel über einen Verbindungsbolzen mit dem beweglichen Zangenschenkel beschränkt schwenkbeweglich verbunden ist und der Verbindungsbolzen eine Öffnung im Festschenkel durchgreift, wobei der Verbindungsbolzen entlang der Öffnung zur Einstellung einer Maulweite zwischen beweglicher Backe und Festbacke verschiebbar ist, wobei der Verbindungsbolzen in seiner Längsachse relativ zum beweglichen Zangenschenkel und zum Festschenkel zwischen einer eine Schiebebewegung des Festschenkels zum beweglichen Zangenschenkel sperrenden und einer die Schiebebewegung freigebenden Endstellung verschiebbar ist, wobei der Verbindungsbolzen in der die Schiebebewegung freigebenden Endstellung arretierbar ausgebildet ist.The invention relates to pliers with a movable limb forming a movable jaw and a fixed limb forming a fixed jaw, the fixed limb being connected to the movable limb for limited pivoting movement via a connecting bolt and the connecting bolt reaching through an opening in the fixed limb, the connecting bolt moving along the Opening for setting an jaw width between the movable jaw and the fixed jaw can be displaced, the connecting bolt being displaceable in its longitudinal axis relative to the movable limb and the fixed limb between an end position blocking a sliding movement of the fixed limb relative to the movable limb and an end position releasing the sliding movement, the connecting bolt being in the the sliding movement releasing end position is designed to be lockable.

Derartige Zangen sind aus dem Stand der Technik bekannt. So offenbart beispielsweise die DE 39 29 323 C2 eine Zange, die sich dem Grunde nach auch bei der üblichen Handhabung bewährt hat.Such pliers are known from the prior art. For example, the DE 39 29 323 C2 a pair of pliers that has basically proven itself in normal use.

Diese vorbekannte Zange weist eine bewegliche Backe auf, die über ein Gelenk mit dem beweglichen Zangenschenkel um einen Verbindungsbolzen relativ zur Festbacke verschwenkbar ist. Der Verbindungsbolzen ist in einem Langloch geführt, welches an gegenüberliegenden Seitenflächen jeweils eine Verzahnung aufweist, die mit einer Verzahnung am Verbindungsbolzen kämmt. Über die Verzahnung wird eine relative Anordnung der beweglichen Backe zur Festbacke zur Einstellung einer Maulweite zwischen beweglicher Backe und Festbacke fixiert. Um die bewegliche Backe entlang der Öffnung relativ zur Festbacke verschieben zu können weist der Verbindungsbolzen neben einem Bereich mit der Verzahnung einen verzahnungsfreien Bereich auf. Der Verbindungsbolzen ist in seiner Längsachsenrichtung relativ zur Festbacke verschiebbar gelagert, so dass er zwischen zwei Endstellungen verschiebbar ist. In der ersten Endstellung greift die Verzahnung des Verbindungsbolzens in die Verzahnung in der Öffnung der Festbacke ein, so dass eine Schiebebewegung des Festschenkels zum beweglichen Zangenschenkel bzw. der beweglichen Backe zur Festbacke gesperrt ist. Wird der Verbindungsbolzen nun in seine zweite Endstellung verschoben, so kommt die Verzahnung des Verbindungsbolzens außer Eingriff mit der Verzahnung in der Öffnung. Der Verbindungsbolzen ist dann mit seinem verzahnungsfreien Bereich in der Öffnung angeordnet und kann in Längsachsenrichtung der Öffnung verschoben werden. Hierdurch wird die Maulweite, d. h. der Abstand zwischen beweglicher Backe und Festbacke eingestellt.These previously known pliers have a movable jaw which can be pivoted about a connecting bolt relative to the fixed jaw via a joint with the movable pliers arm. The connecting bolt is guided in a slot, which has a toothing on opposite side surfaces, which meshes with a toothing on the connecting bolt. A relative arrangement of the movable jaw to the fixed jaw is fixed via the teeth in order to set a jaw width between the movable jaw and the fixed jaw. In order to be able to move the movable jaw along the opening relative to the fixed jaw, the connecting bolt has a tooth-free area in addition to a toothed area. The connecting bolt is mounted so that it can be displaced in its longitudinal axis direction relative to the fixed jaw, so that it can be displaced between two end positions. In the first end position, the toothing of the connecting bolt engages with the toothing in the opening of the fixed jaw, so that a sliding movement of the fixed leg to the movable pliers leg or the movable jaw to the fixed jaw is blocked. If the connecting bolt is now moved into its second end position, the toothing of the connecting bolt comes out Engaging with the teeth in the opening. The connecting bolt is then arranged with its toothing-free area in the opening and can be displaced in the direction of the longitudinal axis of the opening. This adjusts the mouth width, ie the distance between the movable jaw and the fixed jaw.

Über eine Blattfeder wird der Verbindungsbolzen in der ersten Endstellung gehalten, in der die Verzahnung des Verbindungsbolzens in die Verzahnung in der Öffnung eingreift. Die Bewegung des Verbindungsbolzens in seiner Längsachsenrichtung erfolgt daher gegen die Federspannung der Blattfeder.The connecting bolt is held in the first end position by a leaf spring, in which the toothing of the connecting bolt engages in the toothing in the opening. The movement of the connecting bolt in its longitudinal axis direction therefore takes place against the spring tension of the leaf spring.

Bei diesem vorbekannten Stand der Technik ist es nachteilig, dass der Verbindungsbolzen während des Verschiebens der beweglichen Backe relativ zur Festbacke konstant gedrückt werden muss, um eine Maulweite einzustellen und um zu verhindern, dass die Blattfeder den Verbindungsbolzen in die verzahnte Stellung zurückführt bevor die erforderliche Maulweite eingestellt ist. Dies ist insbesondere dann von Nachteil, wenn eine solche Zange bei beschränkten Raumverhältnissen eingesetzt und insbesondere dort auf eine entsprechende Maulweite eingestellt werden soll.In this previously known state of the art, it is disadvantageous that the connecting bolt has to be pressed constantly during the displacement of the movable jaw relative to the fixed jaw in order to set an jaw width and to prevent the leaf spring from returning the connecting bolt to the toothed position before the required jaw width is set. This is particularly disadvantageous when such a pair of pliers is to be used where space is limited and, in particular, is to be adjusted there to an appropriate jaw width.

Eine gattungsgemäße Zange ist aus der DE 10 2005 035 019 A1 bekannt. Diese vorbekannte Zange weist auf einer Oberfläche eines Schenkels einen Schieber auf, der eine Aufnahme für den Verbindungsbolzen aufweist. An die Aufnahme schließt sich eine Schrägfläche an, mit der der Verbindungsbolzen bei der Verschiebung des Schiebers in Achsrichtung der den Verbindungsbolzen aufnehmenden Öffnung aus der sperrenden in die freigebende Stellung verschoben wird. Der Schieber ist in der die Schiebebewegung freigebenden Stellung arretierbar ausgebildet.A generic pliers is from DE 10 2005 035 019 A1 famous. These previously known pliers have a slide on a surface of a leg which has a receptacle for the connecting bolt. The recording is followed by an inclined surface with which the connecting bolt is displaced from the blocking to the releasing position when the slide is displaced in the axial direction of the opening accommodating the connecting bolt. The slide can be locked in the position releasing the sliding movement.

Es liegt der Erfindung daher die Aufgabe zugrunde, eine gattungsgemäße Zange derart weiterzubilden, dass die Verschiebung der beweglichen Backe relativ zur Festbacke und damit die Einstellung der Maulweite wesentlich vereinfacht wird.The invention is therefore based on the object of further developing a generic pair of pliers in such a way that the displacement of the movable jaw relative to the fixed jaw and thus the setting of the jaw width is significantly simplified.

Als Lösung dieser Aufgabenstellung ist eine Zange gemäß Anspruch 1 vorgesehen. Demzufolge ist vorgesehen, dass der Verbindungsbolzen nach seiner Überführung aus der verzahnten in die nicht verzahnte Stellung, in der die Schiebebewegung freigegeben ist arretierbar ist, so dass ein Zurückführen des Verbindungsbolzens in die verzahnte Stellung deutlich manipulierbar ist, in der die Arretierung des Verbindungsbolzens in der die Schiebebewegung freigebenden Endstellung aktiv aufgehoben werden muss und nicht bereits dadurch erfolgt, dass eine den Verbindungsbolzen gegen eine Federspannung belastende Kraft, beispielsweise aufgebracht durch den Daumen, aufgehoben wird. Dies erleichtert die Handhabung der Zange insbesondere bei beengten Raumverhältnissen im Einsatzbereich der Zange, da beispielsweise der Daumen nicht konstant auf dem Verbindungsbolzen ruhen muss, um diesen entgegen der Federspannung in der die Schiebebewegung freigebenden Endstellung zu halten. Der Daumen kann demzufolge für andere Zwecke eingesetzt werden, beispielsweise zur Unterstützung der Verschiebung der beweglichen Backe relativ zur Festbacke, um die Maulweite zu vergrößern oder zu verkleinern.As a solution to this problem, a pair of pliers according to claim 1 is provided. Accordingly, it is provided that the connecting bolt, after its transfer from the toothed to the non-toothed position, in which the sliding movement is released can be locked, so that returning the connecting bolt to the toothed position can be clearly manipulated, in which the locking of the connecting bolt in the end position releasing the sliding movement must be actively canceled and not already done by a force loading the connecting bolt against spring tension, for example applied by the thumb, is lifted. This facilitates the handling of the pliers, especially when space is limited in the area of use of the pliers, since, for example, the thumb does not have to rest constantly on the connecting bolt in order to hold it against the spring tension in the end position releasing the sliding movement. The thumb can therefore be used for other purposes, for example to assist in the displacement of the movable jaw relative to the fixed jaw in order to increase or decrease the jaw width.

Es ist vorgesehen, dass der Verbindungsbolzen eine Sperrvorrichtung aufweist, mit der der Verbindungsbolzen in seiner axialen Bewegbarkeit relativ zum Festschenkel an diesem festlegbar ist.It is provided that the connecting bolt has a locking device with which the connecting bolt can be fixed in its axial mobility relative to the fixed leg on the latter.

Eine alternative, nicht erfindungsgemäße Ausgestaltung sieht vor, dass der Verbindungsbolzen durch eine an dem beweglichen Zangenschenkel angeordnete Sperrvorrichtung arretierbar ist.An alternative embodiment not according to the invention provides that the connecting bolt can be locked by a locking device arranged on the movable pliers arm.

Die Sperrvorrichtung ist in der die Schiebebewegung freigebenden Endstellung durch eine Schwenkbewegung des beweglichen Zangenschenkels relativ zum Festschenkel zwischen die in der Öffnung angeordneten Verzahnung und der am Verbindungsbolzen angeordneten Verzahnung verstellbar.In the end position releasing the sliding movement, the locking device can be adjusted between the teeth arranged in the opening and the teeth arranged on the connecting bolt by a pivoting movement of the movable limb relative to the fixed limb.

Demnach wird der bewegliche Zangenschenkel relativ zum Festschenkel verschwenkt, nachdem der Verbindungsbolzen in die die Schiebebewegung freigebende Endstellung überführt ist. Durch das Verschwenken des beweglichen Zangenschenkels kommt sodann die am Verbindungsbolzen angeordnete Sperrvorrichtung in Kontakt mit dem Festschenkel, bevorzugt im Bereich, der die Seitenflächen der Öffnung begrenzenden und vorzugsweise hierzu rechtwinklig ausgerichteten Flächen, so dass der Verbindungsbolzen daran gehindert ist, in die die Schiebebewegung sperrende Endstellung zurückgeschoben zu werden, beispielsweise mittels einer aus dem Stand der Technik bekannten Blattfeder.Accordingly, the movable limb of the pliers is pivoted relative to the fixed limb after the connecting bolt has been transferred to the end position releasing the sliding movement. As a result of the pivoting of the movable pliers arm, the locking device arranged on the connecting bolt then comes into contact with the fixed arm, preferably in the area of the surfaces delimiting the side surfaces of the opening and preferably aligned at right angles thereto, so that the connecting bolt is prevented from moving into the end position blocking the sliding movement pushed back to be, for example by means of a leaf spring known from the prior art.

Auch bei der zweiten, nicht erfindungsgemäßen Ausführungsform, bei der der Verbindungsbolzen durch eine an dem beweglichen Zangenschenkel angeordneten Sperrvorrichtung arretierbar ist wird die Sperrung durch eine Schwenkbewegung des beweglichen Zangenschenkels relativ zum Festschenkel ausgeführt, indem beispielsweise die an dem beweglichen Zangenschenkel angeordnete Sperrvorrichtung in den Verbindungsbolzen einrastet und diesen in der die Schiebebewegung freigebenden Endstellung arretiert.Also in the second embodiment, not according to the invention, in which the connecting bolt can be locked by a locking device arranged on the movable limb of the pliers, the locking is performed by a pivoting movement of the movable limb relative to the fixed limb, for example by the locking device arranged on the movable limb of the pliers engaging in the connecting bolt and locks it in the end position releasing the sliding movement.

Nach einer Weiterbildung der Erfindung ist vorgesehen, dass die Öffnung eine an zumindest einer ihrer Längsseiten angeordnete Verzahnung aufweist und dass der Verbindungsbolzen eine damit kämmende Verzahnung aufweist, die sich über einen Teilbereich in Längsachsenrichtung des Verbindungsbolzens erstreckt und dass die kämmende Verzahnung des Verbindungsbolzens durch Verschiebung des Verbindungsbolzens außer Eingriff mit der Verzahnung in der Öffnung bringbar ist.According to a development of the invention, it is provided that the opening has teeth arranged on at least one of its longitudinal sides and that the connecting bolt has teeth that mesh with it, which extend over a partial area in the direction of the longitudinal axis of the connecting bolt and that the meshing teeth of the connecting bolt can be displaced by displacement of the The connecting bolt can be disengaged from the teeth in the opening.

Vorzugsweise ist die Sperrvorrichtung als plattenförmiges Element ausgebildet, welches mit dem Verbindungsbolzen verbunden ist. Dieses plattenförmige Element kann der Anlage an dem Festschenkel dienen.The locking device is preferably designed as a plate-shaped element which is connected to the connecting bolt. This plate-shaped element can be used to rest on the fixed leg.

Ist im nicht erfindungsgemäßen Ausführungsbeispiel das plattenförmige Element am beweglichen Zangenschenkel angeordnet, so ist es von Vorteil, wenn dieses formschlüssig in eine entsprechende Ausnehmung im Verbindungsbolzen eingreift. Hierbei kann es sich beispielsweise um eine umlaufende Nut im Bereich des nicht verzahnten Abschnitts des Verbindungsbolzens handeln. Das plattenförmige Element ist biegesteif ausgebildet.If, in the exemplary embodiment not according to the invention, the plate-shaped element is arranged on the movable pliers arm, it is advantageous if this engages in a form-fitting manner in a corresponding recess in the connecting pin. This can be, for example, a circumferential groove in the area of the non-toothed section of the connecting bolt. The plate-shaped element is designed to be rigid.

Nach einem weiteren Merkmal der Erfindung ist vorgesehen, dass der Festschenkel eine Ausnehmung hat, in die die Sperrvorrichtung einrastbar ist. Die Sperrvorrichtung kann auch stiftförmig ausgebildet sein, so dass die entsprechende Ausnehmung als Bohrung vorgesehen ist, in der die Sperrvorrichtung bei verschwenktem beweglichen Zangenschenkel eingreift.According to a further feature of the invention, it is provided that the fixed leg has a recess into which the locking device can be latched. The blocking device can also be designed in the form of a pin, so that the corresponding recess is provided as a bore, in which the blocking device engages when the movable pliers arm is pivoted.

Schließlich ist es nach einem weiteren Merkmal der Erfindung vorgesehen, dass der Verbindungsbolzen gegenüber dem Festschenkel nicht verdrehbar und der bewegliche Schenkel um den Verbindungsbolzen verdrehbar gelagert ist oder dass der Verbindungsbolzen gegenüber dem beweglichen Schenkel nicht verdrehbar und gegenüber dem Festschenkel verdrehbar gelagert ist.Finally, it is provided according to a further feature of the invention that the connecting bolt relative to the fixed leg is not rotatable and the movable leg is rotatably mounted about the connecting bolt or that the Connecting bolt is mounted non-rotatably relative to the movable leg and rotatable relative to the fixed leg.

Weitere Merkmale und Vorteile der erfindungsgemäßen Zange ergeben sich aus der nachfolgenden Beschreibung der dazugehörigen Zeichnung. In der Zeichnung zeigen:

Figur 1:
eine erfindungsgemäße Zange mit geschlossenem Zangenmaul in einer ersten perspektivischen Ansicht;
Figur 2:
die Zange gemäß Figur 1 mit geöffnetem Zangenmaul in einer zweiten perspektivischen Ansicht;
Figur 3:
die Zange gemäß den Figuren 1 und 2 mit geöffnetem Zangenmaul in einer dritten perspektivischen Ansicht;
Figur 4:
die Zange gemäß den Figuren 1 bis 3 mit geöffnetem Zangenmaul in einer vierten perspektivischen Ansicht;
Figur 5:
die Zange gemäß Figur 1 mit geöffnetem Zangenmaul in einer Rückansicht;
Figur 6:
die Zange gemäß Figur 1 mit geöffnetem Zangenmaul und verschwenktem Zangenschenkel in einer perspektivischen Ansicht;
Figur 7:
die Zange gemäß Figur 6 in einer Seitenansicht;
Figur 7A:
die Zange gemäß Figur 7 in einer geschnittenen Seitenansicht entlang der Schnittlinie A - A in Figur 7;
Figur 7B:
die Zange gemäß Figur 7 in einer weiteren Schnittansicht entlang der Schnittlinie B - B in Figur 7;
Figur 8:
die Zange gemäß Figur 7 mit geschlossenem Zangenmaul und
Figur 8A:
die Zange gemäß Figur 8 in einer Schnittansicht entlang der Schnittlinie A-A in Figur 8.
Further features and advantages of the pliers according to the invention result from the following description of the associated drawing. Show in the drawing:
Figure 1:
a pair of pliers according to the invention with the pliers mouth closed in a first perspective view;
Figure 2:
the pliers according to figure 1 with the jaws of the pliers open in a second perspective view;
Figure 3:
the pliers according to the figures 1 and 2 with the jaws of the pliers open in a third perspective view;
Figure 4:
the pliers according to the Figures 1 to 3 with the jaws of the pliers open in a fourth perspective view;
Figure 5:
the pliers according to figure 1 with open forceps mouth in a rear view;
Figure 6:
the pliers according to figure 1 with the jaws of the pliers open and the handle of the pliers pivoted in a perspective view;
Figure 7:
the pliers according to figure 6 in a side view;
Figure 7A:
the pliers according to figure 7 in a sectional side view along section line A - A in figure 7 ;
Figure 7B:
the pliers according to figure 7 in a further sectional view along the section line B - B in figure 7 ;
Figure 8:
the pliers according to figure 7 with closed forceps mouth and
Figure 8A:
the pliers according to figure 8 in a sectional view along section line AA in figure 8 .

In den Figuren 1 bis 8 ist eine Zange 1 dargestellt, die einen beweglichen Zangenschenkel 2 und einen Festschenkel 3 aufweist. Der Zangenschenkel 2 und der Festschenkel 3 weisen an einem Ende ein Griffelement 4 auf, welches aus einer Kunststoffumhüllung besteht, die das aus Metall bestehende Ende des Zangenschenkels 2 bzw. des Festschenkels 3 umhüllt.In the Figures 1 to 8 a pair of pliers 1 is shown, which has a movable pliers leg 2 and a fixed leg 3 . The pliers limb 2 and the fixed limb 3 have at one end a gripping element 4 which consists of a plastic covering which encloses the metal end of the pliers limb 2 or the fixed limb 3 .

Der Festschenkel 3 weist an seinem dem Griffelement 4 gegenüberliegenden Ende eine Festbacke 5 auf. Des Weiteren ist eine bewegliche Backe 6 vorgesehen, die relativ zur Festbacke 5 entlang eines Abschnitts 7 des Festschenkels 3 verschiebbar angeordnet ist. Die Backe 6 weist an ihrem dem Zangenschenkel 2 zugewandten Ende eine Ausnehmung 8 auf, in die ein Zapfen 9 des Zangenschenkels 2 eingreift.The fixed leg 3 has a fixed jaw 5 at its end opposite the gripping element 4 . Furthermore, a movable jaw 6 is provided, which is arranged to be displaceable relative to the fixed jaw 5 along a section 7 of the fixed leg 3 . The jaw 6 has at its end facing the pliers limb 2 a recess 8 into which a pin 9 of the pliers limb 2 engages.

Im Abschnitt 7 des Festschenkels 3 ist eine Öffnung 10 als Langloch ausgebildet, welche an beiden parallel verlaufenden Seitenflächen jeweils eine Verzahnung 11 aufweist.In section 7 of the fixed leg 3, an opening 10 is formed as a slot, which has teeth 11 on each of the two parallel side surfaces.

Die Backe 6 ist an ihrem dem Zangenschenkel 2 zugewandten Ende in einem Teilabschnitt im Querschnitt U-förmig ausgebildet und übergreift mit einer derart ausgebildeten Nut den Abschnitt 7 des Festschenkels 3. Die Backe 6 ist parallel zur Längserstreckung der Öffnung 10 verschiebbar am Festschenkel 3, nämlich am Abschnitt 7 angeordnet.The jaw 6 is U-shaped in cross-section in a partial section at its end facing the pliers arm 2 and overlaps the section 7 of the fixed arm 3 with a groove formed in this way located on section 7.

Der Zangenschenkel 2 ist in seinem dem Festschenkel 3zugewandten Ende im Querschnitt U-förmig ausgebildet und weist eine Ausnehmung 12 auf, die den Abschnitt 7 des Festschenkels 3 übergreift. Somit hat der Zangenschenkel 2 zwei parallel zueinander verlaufende Stege 13, die beabstandet unter Ausbildung der Ausnehmung 12 zueinander angeordnet sind. Endseitig weist jeder Steg 13 eine Bohrung 14 auf, in der ein Verbindungsbolzen 15 derart angeordnet ist, dass der Zangenschenkel 2 um den Verbindungsbolzen 15 relativ zum Festschenkel 3 begrenzt verschwenkbar ist. Die Begrenzung der Verschwenkbarkeit des Zangenschenkels 2 relativ zum Festschenkel 3 ist durch einen Anschlagnocken 16 vorgegeben, der mit einer korrespondierenden Anschlagfläche 17 am Festschenkel 3 in Kontakt bringbar ist.The end of the pliers arm 2 facing the fixed arm 3 is U-shaped in cross section and has a recess 12 which overlaps the section 7 of the fixed arm 3 . Thus, the pliers arm 2 has two webs 13 running parallel to one another, which are arranged at a distance from one another, forming the recess 12 . At the end, each web 13 has a bore 14 in which a connecting bolt 15 is arranged in such a way that the pliers arm 2 can be pivoted to a limited extent about the connecting bolt 15 relative to the fixed arm 3 . The limitation of the pivotability of the pliers arm 2 relative to the fixed arm 3 is specified by a stop cam 16 which can be brought into contact with a corresponding stop surface 17 on the fixed arm 3 .

Der Verbindungsbolzen 15 weist einen Fingeransatz 18 auf, über den der Verbindungsbolzen 15 in seiner Längsachsenrichtung verschoben werden kann. Die Verschiebung erfolgt gegen eine Blattfeder 19, die am Zangenschenkel 2 verschraubt ist (siehe Figur 2).The connecting bolt 15 has a finger attachment 18 via which the connecting bolt 15 can be displaced in its longitudinal axis direction. The displacement takes place against a leaf spring 19, which is screwed to the pliers handle 2 (see Fig figure 2 ).

Der Verbindungsbolzen 15 weist einen ersten Bereich mit einer Verzahnung auf, die mit den Verzahnungen 11 kämmt. An den Bereich mit der Verzahnung schließt sich bei dem Verbindungsbolzen 15 ein Bereich ohne Verzahnung an. Die Länge des Verbindungsbolzens 15 ist derart gewählt, dass über den Fingeransatz 18 der Verbindungsbolzen 15, der in seiner ersten Endstellung mit dem verzahnten Bereich in der Verzahnung 11 angeordnet ist, derart verschoben werden kann, dass der Verbindungsbolzen 15 in seiner zweiten Endstellung lediglich mit dem nicht verzahnten Bereich in der Öffnung 10 geführt ist, so dass der Verbindungsbolzen 15 in dieser Endstellung in Längsachsenrichtung der Öffnung 10 verschiebbar ist.The connecting bolt 15 has a first area with teeth which mesh with the teeth 11 . At the connecting bolt 15, the area with the teeth is followed by an area without teeth. The length of the connecting bolt 15 is selected in such a way that the connecting bolt 15, which in its first end position is arranged with the toothed area in the toothing 11, can be displaced via the finger attachment 18 in such a way that the connecting bolt 15 in its second end position can only be connected to the non-toothed area is guided in the opening 10, so that the connecting bolt 15 is displaceable in this end position in the direction of the longitudinal axis of the opening 10.

An dem Verbindungsbolzen 15 ist weiterhin eine Sperrvorrichtung 20 in Form eines plattenförmigen Elements 21 angeordnet.A locking device 20 in the form of a plate-shaped element 21 is also arranged on the connecting bolt 15 .

In den Figuren 7, 7A, 7B, 8 und 8A sind diese plattenförmigen Elemente 21 dargestellt und es ist erkennbar, dass diese plattenförmigen Elemente 21 bei einer Verschwenkung des Zangenschenkels 2 relativ zum Festschenkel 3 verhindern, dass der verzahnte Abschnitt des Verbindungsbolzens 15 durch die Blattfeder 19 in den verzahnten Bereich der Öffnung 10 einrückt, indem die plattenförmigen Elemente 21 auf Flächen des Abschnitts 7 aufliegen. Wird demgegenüber der Zangenschenkel 2 aus der in Figur 7 dargestellten Position in die in Figur 8 dargestellte Position relativ zum Festschenkel 3 überführt, so werden die diametral gegenüberliegend an dem Verbindungsbolzen 15 angeordneten plattenförmigen Elemente 21 derart angeordnet, dass sie in Längsachsenrichtung der Öffnung 10 verlaufen, wobei die Breite der plattenförmigen Elemente 21 geringer ist, als der Abstand der Spitzen der Zähne der beiden gegenüberliegend angeordneten Verzahnungen 11. In der in Figur 8 dargestellten Stellung kann somit der Verbindungsbolzen 15 über die Blattfeder 19 wieder in eine die Schiebebewegung sperrende Endstellung überführt werden.In the figures 7 , 7A , 7B , 8 and 8A these plate-shaped elements 21 are shown and it can be seen that these plate-shaped elements 21 prevent the toothed section of the connecting bolt 15 from moving through the leaf spring 19 into the toothed area of the opening when the pliers arm 2 pivots relative to the fixed arm 3 10 engages in that the plate-shaped elements 21 rest on surfaces of section 7. If, on the other hand, the pliers arm 2 from the in figure 7 position shown in the in figure 8 shown position relative to the fixed leg 3, the plate-shaped elements 21 arranged diametrically opposite one another on the connecting bolt 15 are arranged in such a way that they run in the direction of the longitudinal axis of the opening 10, the width of the plate-shaped elements 21 being smaller than the distance between the tips of the teeth of the two oppositely arranged toothings 11. In the in figure 8 the position shown, the connecting pin 15 can thus be transferred via the leaf spring 19 back into an end position blocking the sliding movement.

Die plattenförmigen Elemente 21 sind diametral gegenüberliegend am Verbindungsbolzen 15 angeordnet.The plate-shaped elements 21 are arranged diametrically opposite one another on the connecting bolt 15 .

Figur 2 zeigt im Übrigen einen an der Backe 6 angeordneten Führungssteg 22, der in einer Nut 23 im Bereich 7 der Festbacke 5 geführt ist. Entsprechende Nuten 23 sind auf beiden Seiten des Bereichs 7 angeordnet und dienen der Führung von gegenüberliegend an der Backe 6 angeordneten Führungsstegen 22. figure 2 shows a guide bar 22 which is arranged on the jaw 6 and is guided in a groove 23 in the area 7 of the fixed jaw 5 . Corresponding grooves 23 are arranged on both sides of the area 7 and serve to guide guide webs 22 arranged opposite one another on the jaw 6.

Die Figuren 2 bis 7 zeigen die Zange 1 mit einem geöffneten Zangenmaul 24, welches durch Flächen 25 des Zangenschenkels 2 bzw. des Festschenkels 3 bestimmt ist. Demgegenüber zeigen die Figuren 1 und 8 die Zange 1 mit geschlossenem Zangenmaul 24, bei dem die Flächen 25 von Zangenschenkel 2 und Festschenkel 3 aneinander anliegen.the Figures 2 to 7 show the pliers 1 with an open pliers mouth 24, which is determined by surfaces 25 of the pliers leg 2 and the fixed leg 3. In contrast, the figures 1 and 8th the pliers 1 with the pliers mouth 24 closed, in which the surfaces 25 of the pliers leg 2 and the fixed leg 3 rest against one another.

BezugszeichenlisteReference List

11
Zangetongs
22
Zangenschenkelpliers handle
33
Festschenkelfixed leg
44
Griffelementgrip element
55
Festbackefixed jaw
66
Backejaw
77
BereichArea
88th
Ausnehmungrecess
99
Zapfencones
1010
Öffnungopening
1111
Verzahnunggearing
1212
Ausnehmungrecess
1313
Stegweb
1414
Bohrungdrilling
1515
Verbindungsbolzenconnecting bolts
1616
Anschlagnockenstop cam
1717
Anschlagflächestop surface
1818
Fingeransatzfinger base
1919
Blattfederleaf spring
2020
Sperrvorrichtunglocking device
2121
plattenförmiges Elementplate-shaped element
2222
Führungsstegguide bar
2323
Nutgroove
2424
Zangenmaulpincer mouth
2525
Flächesurface

Claims (4)

  1. Plier with a movable plier leg (2) forming a movable jaw (6) and a fixed leg (3) forming a fixed jaw (5), the fixed leg (3) being connected to the movable plier leg (2) via a connecting bolt (15) so as to be pivotable to a limited extent, and the connecting bolt (15) passing through an opening (10) in the fixed leg (3), wherein the connecting bolt (15) is displaceable along the opening (10) for setting a jaw width between the movable jaw (6) and the fixed jaw (5), wherein the connecting bolt (15) is displaceable in its longitudinal axis relative to the movable plier leg (2) and to the fixed jaw (3) between an end position blocking a sliding movement of the fixed jaw (3) towards the movable jaw (2) and an end position releasing the sliding movement, wherein the connecting bolt (15) is designed to be lockable in the end position releasing the sliding movement,
    characterized in
    that the connecting bolt (15) has a locking device (20) by means of which the connecting bolt (15) can be fixed to the fixed leg (3) in its axial movability relative to the latter, and the locking device (20) can be adjusted in the end position releasing the sliding movement by a pivoting movement of the movable plier leg (2) relative to the fixed leg (3) between a toothing (11) arranged in the opening (10) and a toothing arranged on the connecting bolt (15).
  2. Plier according to claim 1, characterized in that the opening (10) has a toothing (11) arranged on at least one of its longitudinal sides and in that the connecting bolt (15) has a toothing which meshes therewith and extends over a partial region in the longitudinal axis direction of the connecting bolt (15) and in that the meshing toothing of the connecting bolt (15) can be disengaged from the toothing (11) in the opening (10) by an axial displacement of the connecting bolt (15).
  3. Plier according to claim 1 or 2, characterized in that the fixed leg (3) has a recess into which the locking device (20) can be engaged.
  4. Plier according to any one of claims 1 to 3, characterized in that the connecting bolt (15) is mounted so as not to be rotatable relative to the fixed leg (3) and the movable plier leg (2) is mounted so as to be rotatable about the connecting bolt (15) or in that the connecting bolt (15) is mounted so as not to be rotatable relative to the movable plier leg (2) and to be rotatable relative to the fixed leg (3).
EP19156237.0A 2018-02-28 2019-02-08 Forceps Active EP3563973B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE202018101086.7U DE202018101086U1 (en) 2018-02-28 2018-02-28 tongs

Publications (2)

Publication Number Publication Date
EP3563973A1 EP3563973A1 (en) 2019-11-06
EP3563973B1 true EP3563973B1 (en) 2022-03-30

Family

ID=62069271

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19156237.0A Active EP3563973B1 (en) 2018-02-28 2019-02-08 Forceps

Country Status (3)

Country Link
EP (1) EP3563973B1 (en)
DE (1) DE202018101086U1 (en)
ES (1) ES2911045T3 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20200061778A1 (en) * 2018-08-21 2020-02-27 Snap-On Incorporated Adjustable Pliers
USD985345S1 (en) 2021-03-31 2023-05-09 Knipex-Werk C. Gustav Putsch Kg Scissors

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3929323C2 (en) 1989-09-04 2001-07-05 Putsch Gustav Knipex Werk Key pliers
DE9113870U1 (en) * 1991-08-08 1992-12-10 Knipex-Werk C. Gustav Putsch, 5600 Wuppertal, De
DE102005035019A1 (en) * 2004-07-28 2006-03-23 Tassilo Priebisch Water pump pliers, comprising sliding element with particularly shaped lower surface acting on locking bolt
DE202004012545U1 (en) * 2004-08-11 2004-10-14 Priebisch, Tassilo Gripping pliers with tong width adjusted by thumb pressure has separate push button acting directly on locking part
DE102014102927A1 (en) * 2014-03-05 2015-09-10 Knipex-Werk C. Gustav Putsch Kg tongs

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Also Published As

Publication number Publication date
EP3563973A1 (en) 2019-11-06
ES2911045T3 (en) 2022-05-17
DE202018101086U1 (en) 2018-04-16

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