EP0216717A1 - Clamping pliers with self-adjusting jaws - Google Patents
Clamping pliers with self-adjusting jaws Download PDFInfo
- Publication number
- EP0216717A1 EP0216717A1 EP86420238A EP86420238A EP0216717A1 EP 0216717 A1 EP0216717 A1 EP 0216717A1 EP 86420238 A EP86420238 A EP 86420238A EP 86420238 A EP86420238 A EP 86420238A EP 0216717 A1 EP0216717 A1 EP 0216717A1
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- EP
- European Patent Office
- Prior art keywords
- jaw
- lever
- movable jaw
- axis
- oblong
- 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.)
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Classifications
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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
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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
- B25B3/00—Hand vices, i.e. vices intended to be held by hand; Pin vices
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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
- B25B7/12—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 vice-grip of the kind comprising a first fixed jaw secured to a main lever and a second jaw capable of oscillating on the main lever and connected, by a toggle forming an operating lever, to the main lever for opening said movable jaw or lock it in the closed position on the object to be tightened by locking the toggle joint after crossing a neutral position.
- 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.
- 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 on complementary flanges of fixed lever having at the end 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 axes of guidaop likely to move in a limited way.
- 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 an intermediate link.
- 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.
- 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 movable jaw the oscillation axis of which is guided in an oblong opening in the main lever, comprises means for blocking and locking said axis whatever the distance between the movable jaw and the other jaw. main lever fixed.
- 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 light oblong in which it can move, so that, when the movable jaw oscillates, the two psles of its axis are wedged against the banks of the oblong light, blocking said jaw.
- the means for blocking the axis of the movable jaw consists of a cam which forms the upper end of said jaw and which bears against a perpendicular wall coupling the two cheeks of the main lever, so that the oscillating movement of said jaw causes the cam to jam against said wall.
- 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 parallelogram angularly deformed 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 jaw (6) has 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 (10) articulated, by an axis (11), to said lever and the end of which bears against the end of an adjustment screw (12 ) with knurled head (13) taking the nut in the branch of lever 1.
- the movable jaw is arranged for - receive a means of 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 are wedged against the edges of the light (4). as illustrated in Figure 2.
- the axis (5) stops in the light (4) but still allows the slight oscillating movement of the jaw (6) under the action of the toggle (9, 10) whose the arching provokes, in the known manner, the blocking of the jaws (2, 6) of the clamp.
- FIGS. 3 and 4 Another embodiment of the locking and locking device of the jaw (6) has been illustrated according to FIGS. 3 and 4. It is a cam (15) which forms the end of the jaw (6) and which can bear against a wall (16) bracing the two cheeks (3) of the main lever (1).
- the axis (17), which allows the oscillation of the jaw (6), is cylindrical and its diameter is substantially identical to the width of the lumen (4).
- the jaw (6) When, under the action of the lever (9), the jaw (6) clamps the object against the other fixed jaw (2), it oscillates around its axis (17) and its cam (15) bears against the wall (16) and causes the jamming of said axis (17) in the lumen, while authorizing the blocking, by the kneepad (9), (10), of the jaws (2) (6) around the object to be clamped .
- the rear part of the movable jaw is arranged with a disc-shaped profile (5) of small thickness engaging 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 (6) of particular profile.
- This plate is arranged in its thickness, according to a nonlimiting example, with two openings (6.1) coming into correspondence with similar openings (5.1) made in the thickness of the disc to allow the engagement of two rivets (7) with head (7.1).
- the second head (7.2) After placing the rivets on the two plates and the disc (5), the second head (7.2) is formed so as to ensure the locking in position.
- the plates are presented as illustrated in FIG. 6 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 (6.2) corresponds substantially to the width of the oblong opening.
- Connection leave (6.3) is made between the different adjacent sides of the board and acts as a positioning ramp.
- the plates (6) 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 light (1.3) requires widening important compared to the lights of the same type established on the serrated vice grips, according to the prior art in a ratio of approximately 1 to 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.
- 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 housing of the vice pliers was flat and the lights were produced by cutting and stamping, then the pliers housing was bent to give it its shape.
- the notched parts formed on the lights provided the origination function by constituting ribbing.
- 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)
Abstract
Description
La présente invention concerne un pince-étau du genre comprenant une première machoire fixe solidaire d'un levier principal et une seconde machoire susceptible d'osciller sur le levier principal et reliée, par une genouillère formant levier de manoeuvre, au levier principal pour ouvrir ladite machoire mobile ou la bloquer en position de fermeture sur l'objet à serrer par verrouillage de la genouillère après franchissement d'un point mort.The present invention relates to a vice-grip of the kind comprising a first fixed jaw secured to a main lever and a second jaw capable of oscillating on the main lever and connected, by a toggle forming an operating lever, to the main lever for opening said movable jaw or lock it in the closed position on the object to be tightened by locking the toggle joint after crossing a neutral position.
Dans les pinces connues de ce type, le réglage de l'écartement de la seconde machoire 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 connait par ailleurs une pince-étau définie dans le brevet GB 1355269. 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 consitu- tant la machoire fixe. Des découpes horizontale et verticale sont réalisées sur les flasques et branches de la chape pour l'ajustement et positionnement de deux axes de guidaop 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 machoire mobile, lors du déplacement de la poignée de commande selon l'action d'une biellette intermédiaire.We also know a vise grip defined in GB 1355269. 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 on complementary flanges of fixed lever having at the end 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 axes of guidaop likely to move in a limited way. 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 an intermediate link.
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 machoire 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 connait 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.We also know a clamp defined in US Patent 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 machoire fixe mais est assujetti directement avec la mâchoire mobile, ce qui va à l'encontre des solutions proposées à ce jour.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 manner, 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.
Dans ce but, la mâchoire mobile dont l'axe d'oscillation est guidé dans une lumière oblongue du levier principal, comporte un moyen de blocage et verrouillage dudit axe quel que soit l'écartement de la mâchoire mobile par rapport à l'autre mâchoire fixe du levier principal.To this end, the movable jaw, the oscillation axis of which is guided in an oblong opening in the main lever, comprises means for blocking and locking said axis whatever the distance between the movable jaw and the other jaw. main lever fixed.
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 psles 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 light oblong in which it can move, so that, when the movable jaw oscillates, the two psles of its axis are wedged against the banks of the oblong light, blocking said jaw.
Suivant une autre forme d'exécution de l'invention, le moyen de blocage de l'axe de la mâchoire mobile est constitué par une came que forme l'extrémité supérieure de ladite mâchoire et qui prend appui contre une paroi perpendiculaire accouplant les deux joues du levier principal, de sorte que le mouvement d'oscillation de ladite mâchoire provoque le coincement de la came contre ladite paroi.According to another embodiment of the invention, the means for blocking the axis of the movable jaw consists of a cam which forms the upper end of said jaw and which bears against a perpendicular wall coupling the two cheeks of the main lever, so that the oscillating movement of said jaw causes the cam to jam against said wall.
Suivant une autre forme de réalisation, la partie arrière de la machoire 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 parallelogram angularly deformed 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 élévation d'une pince-étau comportant un autre moyen de blocage de l'axe de la mâchoire mobile.
- - La figure 4 montre le détail à échelle agrandie de ce moyen de blocage.
- - La figure 5 est une vue en perspective partielle d'une pince-étau selon l'art antérieur avant montage.
- - La figure 6 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 7 est une vue en perspective partielle de la pince étau perfectionnée selon l'invention avant montage,
- - La figure 8 est une vue en coupe transversale illustrant le montage de la pince-étau selon la figure 7,
- - Les figures 9 et 10 sont des vues à caractère schématique illustrant des moyens perfectionnés selon l'invention dans les positions repos et blocage des pièces à serrer.
la pince-étau représentée figures 1 et 3 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.To fix the subject of the invention illustrated in a nonlimiting manner in the figures of the drawing where:
- - Figure 1 is an elevational view of a vise grip according to the invention, comprising a first means for locking the axis of the movable jaw.
- - Figure 2 shows the detail on an enlarged scale of this locking means.
- - Figure 3 is an elevational view of a vise grip having another locking means of the axis of the movable jaw.
- - Figure 4 shows the detail on an enlarged scale of this locking means.
- - Figure 5 is a partial perspective view of a vise grip according to the prior art before assembly.
- FIG. 6 is a partial view according to FIG. 1 illustrating the clamping and blocking effect of the profiled axis in the lumen established on the flanges of the fixed lever,
- FIG. 7 is a partial perspective view of the improved vise grip according to the invention before mounting,
- FIG. 8 is a cross-section view illustrating the mounting of the vice grip according to FIG. 7,
- - Figures 9 and 10 are schematic views illustrating improved means according to the invention in the rest and blocking positions of the parts to be clamped.
the vice grip shown in Figures 1 and 3 comprises in 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 pliers.
Dans la partie élargie (3) que forment les deux joues du levier (1) sont prévues deux lumières oblongues (4). Dans les deux lumières (4) en vis à vis, sont logées les extrémités d'un axe (5) emmanché serré à l'extrémité d'une deuxième ml- choire (6) dite machoire 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.In the enlarged part (3) formed by the two cheeks of the lever (1) are provided two oblong slots (4). In the two openings (4) facing each other, are housed the ends of an axis (5) fitted tightly at the end of a second jaw (6) called an oscillating jaw, affecting the V-shape whose l 'one of the branches is crossed by the axis (5), while the other branch constitutes the second jaw of the clamp.
La mâchoire (6) comporte 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) has 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 (10) articulated, by an axis (11), to said lever and the end of which bears against the end of an adjustment screw (12 ) with knurled head (13) taking the nut in the branch of
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 machoires sur la pièce à serrer.According to the invention the movable jaw is arranged for - receive a means of 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 machoire mobile et est constitué par l'axe (5) lui-méme. 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.
Gràce 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'arquebou- tement provoque, à la manière connue, le blocage des machoires (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 are wedged against the edges of the light (4). as illustrated in Figure 2. The axis (5) stops in the light (4) but still allows the slight oscillating movement of the jaw (6) under the action of the toggle (9, 10) whose the arching provokes, in the known manner, the blocking of the jaws (2, 6) of the clamp.
On a illustré suivant les figures 3 et 4, une autre réalisation du dispositif de blocage et de verrouillage de la mâchoire (6). Il s'agit d'une came (15) que forme l'extrémité de la mâchoire (6) et qui peut prendre appui contre une paroi (16) entretoisant les deux joues (3) du levier principal (1). L'axe (17), qui autorise l'oscillation de la mâchoire (6), est cylindrique et son diamètre est sensiblement identique à la largeur de la lumière (4).Another embodiment of the locking and locking device of the jaw (6) has been illustrated according to FIGS. 3 and 4. It is a cam (15) which forms the end of the jaw (6) and which can bear against a wall (16) bracing the two cheeks (3) of the main lever (1). The axis (17), which allows the oscillation of the jaw (6), is cylindrical and its diameter is substantially identical to the width of the lumen (4).
Lorsque, sous l'action du levier (9), la mâchoire (6) serre l'objet contre l'autre mâchoire fixe (2), elle oscille autour de son axe (17) et sa came (15) s'appuie contre la paroi (16) et provoque le coincement dudit axe (17) dans la lumière, tout en autorisant le blocage , par la genouillère (9), (10), des mâchoires (2) (6) autour de l'ohjet à serrer.When, under the action of the lever (9), the jaw (6) clamps the object against the other fixed jaw (2), it oscillates around its axis (17) and its cam (15) bears against the wall (16) and causes the jamming of said axis (17) in the lumen, while authorizing the blocking, by the kneepad (9), (10), of the jaws (2) (6) around the object to be clamped .
Selon une troisième forme de réalisation illustrée aux figures 5 à 10, la partie arrière de la mâchoire mobile est agencée avec un profil en forme de disque (5) de faible épaisseur s'engageant dans l'intervalle entre les flasques du levier fixe.According to a third embodiment illustrated in Figures 5 to 10, the rear part of the movable jaw is arranged with a disc-shaped profile (5) of small thickness engaging 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 (6) de profil particulier. Cette plaquette est agencée dans son épaisseur, selon un exemple non limitatif, avec deux ouvertures (6.1) venant en correspondance avec des ouvertures similaires (5.1) réalisées dans l'épaisseur du disque pour autoriser l'engagement de deux rivets (7) à tête (7.1). Après mise en place des rivets sur les deux plaquettes et le disque (5), on forme la seconde tete (7.2) de manière à assurer le verrouillage en position. Les plaquettes se présentent ainsi qu'illustré à la figure 6 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 (L1) 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 (6.2) correspond sensiblement à la largeur de la lumière oblongue. Des congés de raccordement (6.3) 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 (6) viennent par la totalité de leurs petits côtés, en appui ferme et coincement dans le profil correspondant de la lumière (1.3). 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 (6) of particular profile. This plate is arranged in its thickness, according to a nonlimiting example, with two openings (6.1) coming into correspondence with similar openings (5.1) made in the thickness of the disc to allow the engagement of two rivets (7) with head (7.1). After placing the rivets on the two plates and the disc (5), the second head (7.2) is formed so as to ensure the locking in position. The plates are presented as illustrated in FIG. 6 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 (6.2) corresponds substantially to the width of the oblong opening. Connection leave (6.3) 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 (6) come by all of their short sides, in firm support and wedging in the corresponding profile of the light (1.3). To unlock, the reverse operation must be carried out.
En variante de réalisation, les plaquettes (6) peuvent être soudées ou collées sur la face en regard du disque ou étre associées par tous moyens de liaison équivalents.In an alternative embodiment, the plates (6) 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 (Ll) de la lumière (1.3) nécessite un élargissement important par rapport aux lumières du mame type atablies sur les pinces étaux crantées, 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. Il 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 stressed that the width (L1) of the light (1.3) requires widening important compared to the lights of the same type established on the serrated vice grips, according to the prior art in a ratio of approximately 1 to 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 deorigidification en constituant des nervu- rages. Selon l'invention, 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 housing of the vice pliers was flat and the lights were produced by cutting and stamping, then the pliers housing was bent to give it its shape. the notched parts formed on the lights provided the origination function by constituting ribbing. According to the invention, 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 ressortent bien de l'invention.The advantages emerge clearly from the invention.
Claims (6)
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 |
---|---|---|---|
FR8514310 | 1985-09-24 | ||
FR8514310A FR2587640B1 (en) | 1985-09-24 | 1985-09-24 | SELF-ADJUSTING JAWS NIPPERS |
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 true EP0216717A1 (en) | 1987-04-01 |
EP0216717B1 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 (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0638393A1 (en) * | 1993-08-11 | 1995-02-15 | Petersen Manufacturing Co., Inc. | Large capacity locking pliers |
EP0967051A1 (en) * | 1998-06-25 | 1999-12-29 | Olympia Industrial, Inc. | Auto-adjusting pliers |
FR2802137A1 (en) * | 1999-12-13 | 2001-06-15 | Facom | CLAMP, LOCKING |
EP1202837A1 (en) * | 1999-06-15 | 2002-05-08 | I.D.L. Tech Tools, LLC | Self-adjusting pliers |
US7444907B2 (en) | 1999-06-15 | 2008-11-04 | I.D.L. Tech Tools, Llc | Self-adjusting pliers |
EP2149428A1 (en) * | 2008-07-28 | 2010-02-03 | Irwin Industrial Tool Company | Locking pliers |
US7861622B2 (en) | 2008-07-28 | 2011-01-04 | Irwin Industrial Tool Company | Locking pliers |
USD771456S1 (en) | 2014-08-01 | 2016-11-15 | Milwaukee Electric Tool Corporation | Pliers with control key |
US10207394B2 (en) | 2015-01-15 | 2019-02-19 | Milwaukee Electric Tool Corporation | Locking pliers with improved adjustment member |
US11370088B2 (en) | 2019-06-06 | 2022-06-28 | Snap-On Incorporated | Locking pliers release mechanism |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
USD782891S1 (en) | 2015-04-02 | 2017-04-04 | Milwaukee Electric Tool Corporation | Locking pliers |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
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 |
-
1986
- 1986-09-22 EP EP19860420238 patent/EP0216717B1/en not_active Expired
- 1986-09-22 DE DE8686420238T patent/DE3667622D1/en not_active Expired - Fee Related
- 1986-09-23 ES ES8602099A patent/ES2004339A6/en not_active Expired
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
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 (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0638393A1 (en) * | 1993-08-11 | 1995-02-15 | Petersen Manufacturing Co., Inc. | Large capacity locking pliers |
AU672111B2 (en) * | 1993-08-11 | 1996-09-19 | Irwin Industrial Tool Company | Large capacity locking pliers |
EP0967051A1 (en) * | 1998-06-25 | 1999-12-29 | Olympia Industrial, Inc. | Auto-adjusting pliers |
EP1202837A1 (en) * | 1999-06-15 | 2002-05-08 | I.D.L. Tech Tools, LLC | Self-adjusting pliers |
EP1202837A4 (en) * | 1999-06-15 | 2007-04-25 | I D L Tech Tools Llc | Self-adjusting pliers |
US7444907B2 (en) | 1999-06-15 | 2008-11-04 | I.D.L. Tech Tools, Llc | Self-adjusting pliers |
FR2802137A1 (en) * | 1999-12-13 | 2001-06-15 | Facom | CLAMP, LOCKING |
WO2001043921A1 (en) * | 1999-12-13 | 2001-06-21 | Facom | Locking pliers |
EP2149428A1 (en) * | 2008-07-28 | 2010-02-03 | Irwin Industrial Tool Company | Locking pliers |
US7861622B2 (en) | 2008-07-28 | 2011-01-04 | Irwin Industrial Tool Company | Locking pliers |
US8056451B2 (en) | 2008-07-28 | 2011-11-15 | Irwin Industrial Tool Company | Locking pliers |
USD771456S1 (en) | 2014-08-01 | 2016-11-15 | Milwaukee Electric Tool Corporation | Pliers with control key |
US10207394B2 (en) | 2015-01-15 | 2019-02-19 | Milwaukee Electric Tool Corporation | Locking pliers with improved adjustment member |
US11154965B2 (en) | 2015-01-15 | 2021-10-26 | Milwaukee Electric Tool Corporation | Locking pliers with improved adjustment member |
US11745313B2 (en) | 2015-01-15 | 2023-09-05 | Milwaukee Electric Tool Corporation | Locking pliers with improved adjustment member |
US11370088B2 (en) | 2019-06-06 | 2022-06-28 | Snap-On Incorporated | Locking pliers release mechanism |
Also Published As
Publication number | Publication date |
---|---|
DE3667622D1 (en) | 1990-01-25 |
EP0216717B1 (en) | 1989-12-20 |
ES2004339A6 (en) | 1989-01-01 |
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