EP0216717B1 - Clamping pliers with self-adjusting jaws - Google Patents

Clamping pliers with self-adjusting jaws Download PDF

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Publication number
EP0216717B1
EP0216717B1 EP19860420238 EP86420238A EP0216717B1 EP 0216717 B1 EP0216717 B1 EP 0216717B1 EP 19860420238 EP19860420238 EP 19860420238 EP 86420238 A EP86420238 A EP 86420238A EP 0216717 B1 EP0216717 B1 EP 0216717B1
Authority
EP
European Patent Office
Prior art keywords
jaw
clamp
movable jaw
lever
vice
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
EP19860420238
Other languages
German (de)
French (fr)
Other versions
EP0216717A1 (en
Inventor
Philippe Roux
Gilles Saccucci
Alain Bregeault
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.)
Outillage Roux France SA Ste
Original Assignee
ROUX FRANCE OUTILLAGE SOC
Outillage Roux France SA Ste
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority claimed from FR8514310A external-priority patent/FR2587640B1/en
Priority claimed from FR8610720A external-priority patent/FR2601611B1/en
Application filed by ROUX FRANCE OUTILLAGE SOC, Outillage Roux France SA Ste filed Critical ROUX FRANCE OUTILLAGE SOC
Priority to AT86420238T priority Critical patent/ATE48781T1/en
Publication of EP0216717A1 publication Critical patent/EP0216717A1/en
Application granted granted Critical
Publication of EP0216717B1 publication Critical patent/EP0216717B1/en
Expired legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B7/00—Pliers; Other hand-held gripping tools with jaws on pivoted limbs; Details applicable generally to pivoted-limb hand tools
    • B25B7/06—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
    • B25B3/00—Hand vices, i.e. vices intended to be held by hand; Pin vices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B7/00—Pliers; Other hand-held gripping tools with jaws on pivoted limbs; Details applicable generally to pivoted-limb hand tools
    • B25B7/12—Pliers; Other hand-held gripping tools with jaws on pivoted limbs; Details applicable generally to pivoted-limb hand tools involving special transmission means between the handles and the jaws, e.g. toggle levers, gears
    • B25B7/123—Pliers; Other hand-held gripping tools with jaws on pivoted limbs; Details applicable generally to pivoted-limb hand tools involving special transmission means between the handles and the jaws, e.g. toggle levers, gears with self-locking toggle levers

Definitions

  • the present invention relates to a vise grip indicated in the preamble of claim 1.
  • the spacing of the second movable jaw is adjusted by means of a rack made in the cheeks of the main lever.
  • the axis of oscillation of the movable jaw is, in fact, capable of being retained in one of the notches of the rack.
  • This prior adjustment operation of the jaw spacing requires an operation of the axis of oscillation of the movable jaw to bring it into contact with the part to be clamped and, depending on its thickness, the user chooses the notch of the appropriate rack.
  • a vise grip defined in patent GB 1 355 269.
  • the clamp according to this patent has a particular arrangement with a movable jaw in the form of a yoke at its end to adjust to complementary flanges of fixed lever having in boils a form constituting the fixed jaw. Horizontal and vertical cuts are made on the flanges and branches of the yoke for the adjustment and positioning of two guide axes capable of moving in a limited manner.
  • An additional part constituting a cam bar is disposed in the body of the fixed lever and can move under the action of a spring secured to the movable jaw, during the movement of the control handle according to the action of a rod. intermediate.
  • Such pliers are of complex construction and assembly with a considerable number of parts.
  • This clamp has drawbacks in adjusting and adjusting its components.
  • the mechanism ensuring the locking in position of the clamping jaws is associated with the body of the clamp and thus with the fixed jaw.
  • the invention relates to a clamp of simple and reliable design, by limiting the number of parts of the jaw locking mechanism. In an entirely different way, the locking mechanism is no longer disposed in the lever or fixed jaw but is secured directly with the movable jaw, which goes against the solutions proposed to date.
  • the invention is set out in claim 1.
  • the means for blocking the axis of the jaw consists of the axis itself which is oval and whose largest diameter is slightly greater than the width of the oblong light in which it can move, so that, when the movable jaw oscillates, the two poles of its axis are wedged against the banks of the oblong light, blocking. said jaw.
  • the rear part of the movable jaw is arranged with a disc-shaped profile, on either side of said profile being attached, centered and fixed a profiled plate arranged with a profile established according to a deformed parallelogram angularly in its axial and transverse planes to adapt to the shapes and dimensions of the oblong slots of each flange of the fixed lever.
  • the vise grip shown in FIG. 1 comprises, in the known manner, a main lever (1) in the form of a U-shaped yoke, one end of which is equipped with a jaw (2) and which constitutes the fixed jaw of the grip.
  • the jaw (6) comprises an ear pierced with a hole for fixing the end of a coil spring (7) also moored, by its other end, to a pin of the lever (1).
  • the jaw (6) is coupled to a second lever (9) comprising a link rod (10) articulated by an axis (11 to said lever and the end of which bears against the end of an adjustment screw (12) to head knurled (13) taking the nut in the lever branch 1.
  • the movable jaw is arranged to receive a means for blocking and locking the jaws on the part to be clamped.
  • the blocking and locking means is disposed at the rear end of the movable jaw and is constituted by the axis (5) itself. More particularly, as illustrated in FIG. 2, each end of the axis (5) is oval. It has two plates and its largest diameter D is slightly greater than the width L of the light (4) in which it is engaged.
  • the adjustment of the jaws (2) and (6) is automatic around the object to be clamped.
  • the jaw (6) in abutment against the object to be clamped, oscillates on its axis (5) which tends to move in the light (4) while by pivoting until the two poles of said axis get stuck against the edges of the light (4) as illustrated well in Figure 2.
  • the axis (5) stops in the light (4) but allows still the slight oscillating movement of the jaw (6) under the action of the toggle (9, 10) whose arqueboutement causes, in known manner, the locking of the jaws (2, 6) of the clamp.
  • the rear part of the movable jaw is arranged with a disc-shaped profile (15) of small thickness engage in the interval between the flanges of the fixed lever.
  • this disc profile (5) On either side of this disc profile (5) is attached and centered a plate (16) of particular profile.
  • This plate is arranged in its thickness, according to a nonlimiting example, with two openings (16.1) coming into correspondence with silimary openings (15.1) made in the thickness of the disc to allow the engagement of two vets (17) with head (17.1).
  • the second head (17.2) After placing the rivets on the two plates and the disc (15), the second head (17.2) is formed so as to ensure the locking in position.
  • the plates are presented as illustrated in FIG. 4 according to a parallelogram angularly deformed in its axial plane and in its transverse plane.
  • the maximum width L of the plate is less than the width (L1) of the lumen to allow easy translation of the movable jaw over the entire length of the lumen when adjusting the position of the jaws relative to the part to be clamped.
  • the length (L2) of the plate between its lateral edges (16.2) corresponds substantially to the width of the oblong opening.
  • Connection leave (16.3) is made between the different adjacent sides of the board and acts as a positioning ramp.
  • the plates (16) can be welded or glued to the opposite face of the disc or be associated by any equivalent connecting means.
  • the width (L1) of the lumen (4) requires a significant widening compared to the lumens of the same type established on the serrated clamps, according to the prior art in a ratio of 1 at around 2.
  • the formation of said lumen is carried out differently from the prior art to avoid any problem of behavior or deformation of the light by ovalization thereof during the production of the casing. It is indeed necessary that the width of the light has a very high degree of precision due to the function of the blocking and locking means. Otherwise, the latter would no longer play its role.
  • the clamp pliers housing was presented flat and the lights were produced by cutting and stamping, then the clamp housing was folded to give it its shape.
  • the notched parts formed on the lights provided the stiffening function by constituting ribs.
  • the clamp housing is first folded. A matrix is added between the two wings (1.1-1.2) and the lights are made. In this way we avoid any weakening of the metal.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Clamps And Clips (AREA)
  • Gripping Jigs, Holding Jigs, And Positioning Jigs (AREA)

Description

La présente invention concerne un pince-étau indiqué au preambule de la revendication 1.The present invention relates to a vise grip indicated in the preamble of claim 1.

Dans les pinces connues de ce type, le réglage de l'écartement de la seconde mâchoire mobile est réalisé au moyen d'une crémaillère pratiquée dans les joues du levier principal. L'axe d'oscillation de la mâchoire mobile est, en effet, susceptible d'être retenu dans l'une des encoches de la crémaillère. Cette opération de réglage préalable de l'écartement des mâchoires nécessite une manoeuvre de l'axe d'oscillation de la mâchoire mobile pour l'amener au contact de la pièce à serrer et, selon son épaisseur, l'utilisateur choisit l'encoche de la crémaillère appropriée.In known clamps of this type, the spacing of the second movable jaw is adjusted by means of a rack made in the cheeks of the main lever. The axis of oscillation of the movable jaw is, in fact, capable of being retained in one of the notches of the rack. This prior adjustment operation of the jaw spacing requires an operation of the axis of oscillation of the movable jaw to bring it into contact with the part to be clamped and, depending on its thickness, the user chooses the notch of the appropriate rack.

Au contraire avec la pince-étau objet de l'invention, l'utilisateur n'a plus besoin d'opérer le réglage préalable des mâchoires contre l'objet à serrer puisque celui-ci a lieu automatiquement.On the contrary with the vise grip object of the invention, the user no longer needs to make the prior adjustment of the jaws against the object to be clamped since it takes place automatically.

On connaît par ailleur une pince-étau définie dans le brevet GB 1 355 269. La pince selon ce brevet présente un agencement particulier avec une mâchoire mobile en forme de chape à son extrémité pour s'ajuster sur des flasques complémentaires de levier fixe présentant en bout une forme constituant la mâchoire fixe. Des découpes horizontale et verticale sont réalisés sur les flasques et branches de la chape pour l'ajustement et positionnement de deux axes de guidage susceptibles de se déplacer d'une manière limitée. Une pièce supplémentaire constituant une barre à came est disposée dans le corps du levier fixe et peut se déplacer sous l'action d'un ressort assujetti à la mâchoire mobile, lors du déplacement de la poignée de commande selon l'action d'une biellette intermédiaire.Also known is a vise grip defined in patent GB 1 355 269. The clamp according to this patent has a particular arrangement with a movable jaw in the form of a yoke at its end to adjust to complementary flanges of fixed lever having in boils a form constituting the fixed jaw. Horizontal and vertical cuts are made on the flanges and branches of the yoke for the adjustment and positioning of two guide axes capable of moving in a limited manner. An additional part constituting a cam bar is disposed in the body of the fixed lever and can move under the action of a spring secured to the movable jaw, during the movement of the control handle according to the action of a rod. intermediate.

Une telle pince est d'une construction et montage complexe avec un nombre de pièces considérables. Cette pince présente des inconvénients de réglage, et d'ajustement de ses composants. Le mécanisme assurant le verrouillage en position des mâchoires de serrage se trouve associé au corps de la pince et ainsi à la mâchoire fixe.Such pliers are of complex construction and assembly with a considerable number of parts. This clamp has drawbacks in adjusting and adjusting its components. The mechanism ensuring the locking in position of the clamping jaws is associated with the body of the clamp and thus with the fixed jaw.

On connaît également une pince définie dans le brevet US 4 275 623. Cette pince est d'une structure très complexe. Les mâchoires ne sont pas agencées directement avec les moyens assurant leur blocage. Le moyen de verrouillage des mâchoires en position de serrage est disposé à la partie arrière du levier fixe. Ce moyen présente une structure associée avec des éléments nombreux et particuliers, chariot, barre de came, ressort. Le réglage des mâchoires sur la pièce à serrer s'effectue préalablement par une intervention manuelle différente sur d'autres mécanismes, puis le verrouillage est réalisé avec une barre d'accouplement.Also known is a clamp defined in US Pat. No. 4,275,623. This clamp has a very complex structure. The jaws are not arranged directly with the means ensuring their blocking. The means for locking the jaws in the clamping position is disposed at the rear part of the fixed lever. This means has a structure associated with numerous and specific elements, carriage, cam bar, spring. The adjustment of the jaws on the part to be clamped is carried out beforehand by a different manual intervention on other mechanisms, then the locking is carried out with a coupling bar.

L'invention vise une pince de conception simple et fiable, en limitant le nombre de pièces du mécanisme de verrouillage des mâchoires. De manière tout à fait différente le mécanisme de verrouillage n'est plus disposé dans le levier ou mâchoire fixe mais est assujetti directement avec la mâchoire mobile, ce qui va à l'encontre des solutions proposées à ce jour. L'invention est indiqué à la revendication 1.The invention relates to a clamp of simple and reliable design, by limiting the number of parts of the jaw locking mechanism. In an entirely different way, the locking mechanism is no longer disposed in the lever or fixed jaw but is secured directly with the movable jaw, which goes against the solutions proposed to date. The invention is set out in claim 1.

Suivant une première forme d'exécution de l'invention, le moyen de blocage de l'axe de la mâchoire, est constitué par l'axe lui-même qui est oval et dont le plus grand diamètre est légèrement supérieur à la largeur de la lumière oblongue dans laquelle il peut se déplacer, de sorte que, quand la mâchoire mobile oscille, les deux pôles de son axe se coincent contre les rives de la lumière oblongue, bloquant. ladite mâchoire.According to a first embodiment of the invention, the means for blocking the axis of the jaw, consists of the axis itself which is oval and whose largest diameter is slightly greater than the width of the oblong light in which it can move, so that, when the movable jaw oscillates, the two poles of its axis are wedged against the banks of the oblong light, blocking. said jaw.

Suivant une autre forme de réalisation, la partie arrière de la mâchoire mobile est agencée avec un profil en forme de disque, de part et d'autre dudit profil étant rapportée, centrée et fixée une plaquette profilée agencée avec un profil établi selon un parallélogramme déformé angulairement dans ses plans axial et transversal pour s'adapter aux formes et dimensions des lumières oblongues de chaque flasque du levier fixe.According to another embodiment, the rear part of the movable jaw is arranged with a disc-shaped profile, on either side of said profile being attached, centered and fixed a profiled plate arranged with a profile established according to a deformed parallelogram angularly in its axial and transverse planes to adapt to the shapes and dimensions of the oblong slots of each flange of the fixed lever.

Ces caractéristiques et d'autres encore ressortiront de la suite de la description.These characteristics and others will emerge from the following description.

Pour fixer l'objet de l'invention illustré d'une manière non limitative aux figures du dessin où:

  • la figure 1 est une vue en élévation d'une pince-étau selon l'invention, comportant un premier moyen de blocage de l'axe de la mâchoire mobile,
  • la figure 2 montre le détail à échelle agrandie de ce moyen de blocage,
  • la figure 3 est une vue en perspective partielle d'une pince-étau selon l'invention avant montage selon la figure 1,
  • la figure 4 est une vue partielle selon la figure 1 illustrant l'effet de serrage et de blocage de l'axe profilé dans la lumière établie sur les flasques du levier fixe,
  • la figure 5 est une vue en perspective partielle de la pince-étau perfectionnée selon l'invention avant montage,
  • la figure 6 est une vue en coupe transversale illustrant le montage de la pince-étau selon la figure 5,
  • les figures 7 et 8 sont des vues à caractère schématique illustrant des moyens perfectionnés selon l'invention dans les positions repos et blocage des pièces à serrer.
To fix the subject of the invention illustrated in a nonlimiting manner in the figures of the drawing where:
  • FIG. 1 is an elevation view of a vise grip according to the invention, comprising a first means for blocking the axis of the movable jaw,
  • FIG. 2 shows the detail on an enlarged scale of this locking means,
  • FIG. 3 is a partial perspective view of a vice grip according to the invention before mounting according to FIG. 1,
  • FIG. 4 is a partial view according to FIG. 1 illustrating the tightening and blocking effect of the profiled axis in the lumen established on the flanges of the fixed lever,
  • FIG. 5 is a partial perspective view of the improved vise grip according to the invention before mounting,
  • FIG. 6 is a cross-sectional view illustrating the mounting of the vice grip according to FIG. 5,
  • Figures 7 and 8 are schematic views illustrating improved means according to the invention in the rest and blocking positions of the parts to be clamped.

La pince-étau représentée figure 1 comprend à la manière connue, un levier principal (1) en forme de chape en U dont l'une des extrémités est équipée d'un mors (2) et qui constitue la mâchoire fixe de la pince.The vise grip shown in FIG. 1 comprises, in the known manner, a main lever (1) in the form of a U-shaped yoke, one end of which is equipped with a jaw (2) and which constitutes the fixed jaw of the grip.

Dans la partie élargie (3) que forment les deux joues du levier (1) sont prévues deux lumières oblongues (4). Dans les eux lumières (4) en vis à vis, sont logées les extrémités d'un axe (5) emmanché serré à l'extrémité d'une deuxième mâchoire (6) dite mâchoire oscillante, affectant la forme en V dont l'une des branches est traversée par l'axe (5), tandis que l'autre branche constitue le second mors de la pince. Les lumières sont curvilignes ainsi qu'illustrées aux figures des dessins.In the enlarged part (3) formed by the two cheeks of the lever (1) are provided two oblong slots (4). In them lights (4) opposite, are housed the ends of an axis (5) fitted tightly at the end of a second jaw (6) called oscillating jaw, affecting the V shape, one of which branches is crossed by the axis (5), while the other branch constitutes the second jaw of the clamp. The lights are curvilinear as illustrated in the figures of the drawings.

La mâchoire (6) comprend une oreille percée d'un trou pour la fixation de l'extrémité d'un ressort à boudin (7) par ailleurs amarré, par son autre extrémité, à une goupille du levier (1).The jaw (6) comprises an ear pierced with a hole for fixing the end of a coil spring (7) also moored, by its other end, to a pin of the lever (1).

La mâchoire (6) est accouplée à un second levier (9) comportant une biellette (10) articulée, par un axe (11 audit levier et dont l'extrémité prend appui contre l'extrémité d'une vis de réglage (12) à tête moletée (13) prenant l'écrou dans la branche du levier 1 .The jaw (6) is coupled to a second lever (9) comprising a link rod (10) articulated by an axis (11 to said lever and the end of which bears against the end of an adjustment screw (12) to head knurled (13) taking the nut in the lever branch 1.

Dans le second levier (9) est articulé un levier auxiliaire (14) prenant appui contre le levier principal (1 ) pour permettre le déblocage de la genouillère constituée du levier (9) et de la biellette (10).In the second lever (9) is articulated an auxiliary lever (14) bearing against the main lever (1) to allow the release of the toggle consisting of the lever (9) and the link (10).

Selon l'invention la mâchoire mobile est agencée pour recevoir un moyen de blocage et verrouillage des mâchoires sur la pièce à serrer.According to the invention, the movable jaw is arranged to receive a means for blocking and locking the jaws on the part to be clamped.

Selon une première variante de réalisation le moyen de blocage et de verrouillage est disposé à l'extrémité arrière de la mâchoire mobile et est constitué par l'axe (5) lui-même. Plus particulièrement, comme illustré figure 2 chaque extrémité de l'axe (5) est ovale. Elle comporte deux plats et son plus grand diamètre D est légèrement supérieur à la largeur L de la lumière (4) dans laquelle elle est engagée.According to a first alternative embodiment, the blocking and locking means is disposed at the rear end of the movable jaw and is constituted by the axis (5) itself. More particularly, as illustrated in FIG. 2, each end of the axis (5) is oval. It has two plates and its largest diameter D is slightly greater than the width L of the light (4) in which it is engaged.

Grâce à ce système simple et pratique le réglage des mâchoires (2) et (6) est automatique autour de l'objet à serrer. Au fur et à mesure que l'utilisateur agit sur le levier (9) la mâchoire (6), en butée contre l'objet à serrer, oscille sur son axe (5) qui tend à se déplacer dans la lumière (4) tout en pivotant jusqu'à ce que les deux pôles dudit axe viennent se coincer contre les bords de la lumière (4) comme l'illustre bien la figure 2. L'axe (5) s'immobilise dans la lumière (4) mais autorise encore le léger mouvement oscillant de la mâchoire (6) sous l'action de la genouillère (9, 10) dont l'arqueboutement provoque, à la manière connue, le blocage des mâchoires (2, 6) de la pince.Thanks to this simple and practical system, the adjustment of the jaws (2) and (6) is automatic around the object to be clamped. As the user acts on the lever (9) the jaw (6), in abutment against the object to be clamped, oscillates on its axis (5) which tends to move in the light (4) while by pivoting until the two poles of said axis get stuck against the edges of the light (4) as illustrated well in Figure 2. The axis (5) stops in the light (4) but allows still the slight oscillating movement of the jaw (6) under the action of the toggle (9, 10) whose arqueboutement causes, in known manner, the locking of the jaws (2, 6) of the clamp.

Selon une autre forme de réalisation illustrée aux figures 3 à 8, la partie arrière de la mâchoire mobile est agencée avec un profile en forme de disque (15) de faible épaisseur s'engagent dans l'intervalle entre les flasques du levier fixe.According to another embodiment illustrated in Figures 3 to 8, the rear part of the movable jaw is arranged with a disc-shaped profile (15) of small thickness engage in the interval between the flanges of the fixed lever.

De part et d'autre de ce profil en disque (5) est rapportée et centrée une plaquette (16) de profil particulier. Cette plaquette est agencée dans son épaisseur, selon un exemple non limitatif, avec deux ouvertures (16.1) venant en correspondance avec des ouvertures silimaires (15.1) réalisées dans l'épaisseur du disque pour autoriser l'engagement de deux vets (17) à tête (17.1). Après mise en place des rivets sur les deux plaquettes et le disque (15), on forme la seconde tête (17.2) de manière à assurer le verrouillage en position. Les plaquettes se présentent ainsi qu'illustré à la figure 4 selon un parallélogramme déformé angulairement dans son plan axial et dans son plan transversal. La largeur L maximum de la plaquette est inférieure à la largeur (Ll ) de la lumière pour permettre la translation aisée de la mâchoire mobile sur toute la longueur de la lumière lors des réglages en position des mâchoires par rapport à la pièce à serrer. La longueur (L2) de la plaquette entre ses chants latéraux (16.2) correspond sensiblement à la largeur de la lumière oblongue. Des congés de raccordement (16.3) sont réalisés entre les différents côtés adjacents de la plaquette et font office de rampe de positionnement. On comprend que selon la position de la mâchoire mobile les plaquettes (16) viennent par la totalité de leurs petits côtés, en appui ferme et coincement dans le profil correspondant de la lumière (4). Pour déverrouiller, il y a lieu de procéder à la manoeuvre inverse.On either side of this disc profile (5) is attached and centered a plate (16) of particular profile. This plate is arranged in its thickness, according to a nonlimiting example, with two openings (16.1) coming into correspondence with silimary openings (15.1) made in the thickness of the disc to allow the engagement of two vets (17) with head (17.1). After placing the rivets on the two plates and the disc (15), the second head (17.2) is formed so as to ensure the locking in position. The plates are presented as illustrated in FIG. 4 according to a parallelogram angularly deformed in its axial plane and in its transverse plane. The maximum width L of the plate is less than the width (L1) of the lumen to allow easy translation of the movable jaw over the entire length of the lumen when adjusting the position of the jaws relative to the part to be clamped. The length (L2) of the plate between its lateral edges (16.2) corresponds substantially to the width of the oblong opening. Connection leave (16.3) is made between the different adjacent sides of the board and acts as a positioning ramp. We understand that depending on the position of the movable jaw plates (16) come by all of their short sides, in firm support and wedging in the corresponding profile of the light (4). To unlock, the reverse operation must be carried out.

En variante de réalisation, les plaquettes (16) peuvent être soudées ou collées sur la face en regard du disque ou être associées par tous moyens de liaison équivalents.In an alternative embodiment, the plates (16) can be welded or glued to the opposite face of the disc or be associated by any equivalent connecting means.

De manière importante, il y a lieu de souligner que la largeur (L1 ) de la lumière (4) nécessite un élargissement important par rapport aux lumières du même type établies sur les pinces étaux crantés, selon l'art antérieur dans un rapport de 1 à 2 environ. Etant donné la réduction d'épaisseur dans la partie (1.4) du levier fixe entre la lumière (1.3) et le profil extérieur (1.5), la formation de ladite lumière s'effectue différemment de la technique antérieure pour éviter tout problème de tenue ou de déformation de la lumière par ovalisation de celle-ci lors de la réalisation du carter. II faut en effet que la largeur de la lumière ait un degré de précision très élevé du fait de la fonction du moyen de blocage et de verrouillage. A défaut, ce dernier ne jouerait plus son rôle.Importantly, it should be emphasized that the width (L1) of the lumen (4) requires a significant widening compared to the lumens of the same type established on the serrated clamps, according to the prior art in a ratio of 1 at around 2. Given the reduction in thickness in the part (1.4) of the fixed lever between the lumen (1.3) and the external profile (1.5), the formation of said lumen is carried out differently from the prior art to avoid any problem of behavior or deformation of the light by ovalization thereof during the production of the casing. It is indeed necessary that the width of the light has a very high degree of precision due to the function of the blocking and locking means. Otherwise, the latter would no longer play its role.

Selon l'art antérieur, le carter de la pince-étau se présentait à plat et l'on réalisait les lumières par découpage-emboutissage, puis on pliait le carter de pince pour lui donner sa forme. Les parties crantées formées sur les lumières assuraient la fonction de rigidification en constituant des nervurages. Selon les pinces étaux presentées, le carter de pince est tout d'abord plié. Une matrice est rapportée entre les deux ailes (1.1-1.2) et les lumières sont réalisées. De cette manière on évite tout afaiblissement du métal.According to the prior art, the clamp pliers housing was presented flat and the lights were produced by cutting and stamping, then the clamp housing was folded to give it its shape. The notched parts formed on the lights provided the stiffening function by constituting ribs. Depending on the vise clamps presented, the clamp housing is first folded. A matrix is added between the two wings (1.1-1.2) and the lights are made. In this way we avoid any weakening of the metal.

Ainsi l'adaptation du moyen de blocage et de verrouillage a necessité une redéfinition de la formation et fabrication du carter ou levier fixe.Thus the adaptation of the blocking and locking means required a redefinition of the formation and manufacture of the casing or fixed lever.

Les avantages ressortiront bien de l'invention.The advantages will emerge clearly from the invention.

Claims (5)

1. An improvement vice-clamp of the type comprising a first fixed jaw (2) integral with a main U-shaped lever (1) and a second movable jaw (6) associated hingedly with a main lever under the action of a toggle device (9-10) which forms an operational and gripping lever for interlocking said jaws on the object to be clamped after passing past a dead centre, said second V-shaped jaw (6) being provided with a rearward portion penetrating into the corresponding profile of said main lever while being capable of oscillating within oblong apertures (4) provided on the webs of the fixed lever, said vice-clamp being characterized in that said movable jaw (6) is provided at the lower end thereof with a single means (5, 16) permitting the shifting and the positioning of the jaw, the latching and the interlocking of the oscillating axis thereof on the main lever engaged and centered within said smooth and curvilinear oblong apertures, said means being contoured to provide on the one hand the shifting and the positioning of the movable jaw and to provide on the other hand a co-operation with the contour of said apertures, while being urged firmly and wedged against the two edges of said apertures, in accordance with the position of said means for the clamping of the part to be maintained, the gripping of the object to be clamped being thus made possible without a previous adjustement of the spacing apart of the jaws.
2. A vice-clamp in accordance with claim 1, characterized in that the latching of the jaw axis is created by the axis proper (5), the ends of which are oval, with the large diameter (D) slightly greater than the width (L) of the oblong apertures, so that when the movable jaw (6) is oscillated, the two poles of each end of the axis (5) thereof are wedged against the edges of the oblong aperture (4).
3. A vice-clamp in accordance with claim 1, characterized in that the rearward portion of the movable jaw is arranged with a disc-shaped profile (15) on each side of which a contoured small piate (16) is built in, centered and secured with a profile according to a parallelogram which is angularly out of shape in the axial and transverse planes thereof in order to be adapted to the shapes and size of the oblong apertures.
4. An improved vice-clamp in accordance with claim 3, characterized in that the maximal width L of the small plate is less than the width of the aperture, the length of the small plate between the lateral edges thereof corresponding approximately to the width of the oblong aperture, and connection clearances (16.3) being provided between the various adjacent sides in order to constitute positioning ramps.
5. An improved vice-clamp in accordance with claim 3, characterized in that the small plates are arranged with openings (16.1) for the positioning of rivets (17) engaged within complementary openings (15.1) provided within the contour of the disc (15) of the rearward portion of the movable jaw.
EP19860420238 1985-09-24 1986-09-22 Clamping pliers with self-adjusting jaws Expired EP0216717B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT86420238T ATE48781T1 (en) 1985-09-24 1986-09-22 CLAMPS WITH SELF-ADJUSTING JAWS.

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
FR8514310A FR2587640B1 (en) 1985-09-24 1985-09-24 SELF-ADJUSTING JAWS NIPPERS
FR8514310 1985-09-24
FR8610720 1986-07-15
FR8610720A FR2601611B1 (en) 1986-07-15 1986-07-15 PERFECTED VISE CLIP WITH SELF-ADJUSTABLE JAWS.

Publications (2)

Publication Number Publication Date
EP0216717A1 EP0216717A1 (en) 1987-04-01
EP0216717B1 true EP0216717B1 (en) 1989-12-20

Family

ID=26224728

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19860420238 Expired EP0216717B1 (en) 1985-09-24 1986-09-22 Clamping pliers with self-adjusting jaws

Country Status (3)

Country Link
EP (1) EP0216717B1 (en)
DE (1) DE3667622D1 (en)
ES (1) ES2004339A6 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9492911B2 (en) 2015-01-15 2016-11-15 Milwaukee Electric Tool Corporation Locking pliers with improved adjustment member
USD782891S1 (en) 2015-04-02 2017-04-04 Milwaukee Electric Tool Corporation Locking pliers
USD811186S1 (en) 2014-08-01 2018-02-27 Milwaukee Electric Tool Corporation Pliers with control key

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5351585A (en) * 1993-08-11 1994-10-04 Petersen Manufacturing Co. Inc. Large capacity locking pliers
US6065376A (en) * 1998-06-25 2000-05-23 Olympia Industrial, Inc. Auto-adjusting pliers
US6279431B1 (en) * 1999-06-15 2001-08-28 Brett P. Seber Self-adjusting pliers
US7444907B2 (en) 1999-06-15 2008-11-04 I.D.L. Tech Tools, Llc Self-adjusting pliers
FR2802137B1 (en) * 1999-12-13 2002-03-01 Facom CLAMP, LOCKING
US8056451B2 (en) 2008-07-28 2011-11-15 Irwin Industrial Tool Company Locking pliers
US7861622B2 (en) 2008-07-28 2011-01-04 Irwin Industrial Tool Company Locking pliers
US11370088B2 (en) 2019-06-06 2022-06-28 Snap-On Incorporated Locking pliers release mechanism

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US2661648A (en) * 1950-02-18 1953-12-08 Harold T Jones Quick-adjusting toggle wrench
US2751801A (en) * 1954-05-17 1956-06-26 John L Hostetter Self-adjusting plier-type toggle locking wrench
US3104571A (en) * 1960-08-22 1963-09-24 Mueller Trybus Associates Inc Self adjusting wrench
GB1355269A (en) * 1973-01-13 1974-06-05 Wilson N R Self adjusting wrenches
US4275623A (en) * 1979-11-13 1981-06-30 James Walter Hand tool

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USD811186S1 (en) 2014-08-01 2018-02-27 Milwaukee Electric Tool Corporation Pliers with control key
US9492911B2 (en) 2015-01-15 2016-11-15 Milwaukee Electric Tool Corporation Locking pliers with improved adjustment member
USD782891S1 (en) 2015-04-02 2017-04-04 Milwaukee Electric Tool Corporation Locking pliers

Also Published As

Publication number Publication date
EP0216717A1 (en) 1987-04-01
ES2004339A6 (en) 1989-01-01
DE3667622D1 (en) 1990-01-25

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