WO1997004922A1 - Tool with adjustable hinged handles - Google Patents

Tool with adjustable hinged handles Download PDF

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Publication number
WO1997004922A1
WO1997004922A1 PCT/FR1996/001152 FR9601152W WO9704922A1 WO 1997004922 A1 WO1997004922 A1 WO 1997004922A1 FR 9601152 W FR9601152 W FR 9601152W WO 9704922 A1 WO9704922 A1 WO 9704922A1
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WO
WIPO (PCT)
Prior art keywords
branch
spherical
bores
rack
walls
Prior art date
Application number
PCT/FR1996/001152
Other languages
French (fr)
Inventor
André Laurencot
Original Assignee
Bost Garnache Industries
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
Application filed by Bost Garnache Industries filed Critical Bost Garnache Industries
Priority to AU66627/96A priority Critical patent/AU6662796A/en
Priority to EP96926442A priority patent/EP0840666B1/en
Priority to AT96926442T priority patent/ATE213447T1/en
Priority to DE69619380T priority patent/DE69619380T2/en
Publication of WO1997004922A1 publication Critical patent/WO1997004922A1/en

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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

Definitions

  • the present invention relates to a tool with articulated branches comprising a device for adjusting the relative spacing of the branches.
  • the invention finds a particularly advantageous application in the field of pliers with variable openings, in particular of the multiple socket type.
  • a clamp consists of two levers retained by an axis integral with one of the levers and mounted rotating in the second.
  • the state of the art corresponding to adjustable jaw pliers comprises a first type of tool, consisting of two branches connected by a movable hinge pin in an oblong opening formed in one of them.
  • This opening comprises a succession of notches which cooperate with the articulation axis so as to offer several positions of use to the branch pivoting about this axis, by simple displacement of said axis in said opening.
  • the notches are distributed on one or on the two long sides of the opening and the axis is provided with one or two flats.
  • this type of device has the drawback of causing rapid wear on the various parts in contact.
  • the section of the articulation axis not being circular due to the presence of the flat or flat surfaces, this does not work over its entire surface and the various mechanical stresses are only supported by the cylindrical parts directly in contact with the notches.
  • interlocking difficulties frequently arise when adjusting the spacing of the branches because of the need to precisely position the non-cylindrical articulation axis with respect to the succession of notches carried by the oblong opening. Stuck phenomena are also part of the drawbacks relating to the use of such a device.
  • the second type of variable opening forceps of the state of the art has a general constitution substantially identical to that previously described, with the exception of the rack adjustment system which is replaced by a sector articulation system in which, schematically. a curved rib formed on one branch cooperates with grooves of complementary shapes arranged on the sliding surface of the other branch.
  • a sector articulation system in which, schematically. a curved rib formed on one branch cooperates with grooves of complementary shapes arranged on the sliding surface of the other branch.
  • the technical problem to be solved by the object of the present invention is to propose a tool with articulated branches comprising a device for adjusting the relative spacing of said branches which could be manipulated with one hand and which would limit the risks jamming as well as the engagement and wear problems encountered in the prior art.
  • a tool with adjustable articulated branches in particular pliers with variable opening, formed of a first branch called central articulated between two walls of a second branch called support by an articulation means constituted by a spherical member movable in translation relative to one of the branches and movable in rotation relative to the other branch, said spherical member having on its external surface at least one helical thread cooperating with at least one rack fitted on one of the branches.
  • the support branch comprises two circular bores arranged opposite one another on the two walls enclosing the central branch, which is itself provided an oblong bore positioned opposite said circular bores and provided with a rack cooperating with the thread or threads of the spherical member.
  • the spherical organ takes place in the space defined by these different bores.
  • two oblong bores are arranged opposite on the two walls of the support branch, and each of them is provided with a rack cooperating with the thread or threads of the 'spherical organ.
  • the central branch it has a circular bore positioned opposite said oblong bores so as to define together a space in which the spherical member takes place.
  • the dimensions and internal shapes of the different bores are capable of holding, between the walls of the support branch, the spherical member movable in translation relative to the two oblong bores and movable in rotation relative to the set of bores.
  • the spherical member has on its external surface at least one helical thread cooperating with at least one rack arranged on one of the branches, the spherical member can be moved easily and precisely relative to the branch on which the rack is arranged, so as to modify the position of the point of articulation of the two branches and consequently adjust their relative spacing. Furthermore, the combination of the thread (s) with the rack (s) makes it possible to produce a reliable and precise adjustment device offering an infinity of stable positions of use, and a flexibility of design of the tool.
  • the spherical member has a single thread on its outer surface.
  • each circular bore advantageously consists of a portion of spherical surface, complementary to the part of the spherical member with which it is in contact.
  • each rack has a shape adapted to the geometry of the surface of the spherical threaded member with which it cooperates and which is a function of the position of said rack relative to said spherical organ.
  • each rack has longitudinally, at the level of each part intended to come into contact with said spherical member, a shape whose surface is constituted by a longitudinal portion of cylindrical surface.
  • Such a configuration also makes it possible to limit as much as possible the play existing between the different moving parts constituting the articulation of the tool, in order to further improve its precision and reliability.
  • the axis of rotation of the spherical member is parallel to the direction in which the or each rack is disposed;
  • the equatorial part of the outer surface of the spherical member has a non-slip structure.
  • the invention as thus defined in its two embodiments, has the advantage of being particularly easy to use because of the possibility of adjusting the relative spacing of the branches with one hand.
  • FIG. 1 represents a side view of a tool with adjustable articulated branches, according to a first embodiment of the invention.
  • FIG. 2 is a top view in partial section schematically representing the articulation of the tool illustrated in FIG. 1.
  • Figure 3 is a partial side view illustrating the cooperation between the threaded spherical member and the rack carried by the central branch, according to the first embodiment.
  • Figure 4 is a side view of a tool with adjustable articulated branches, according to a second embodiment.
  • FIG. 5 is a top view in partial section schematically representing the articulation of the tool illustrated in FIG. 4.
  • Figure 6 is a partial side view illustrating the cooperation between the spherical threaded member and one of the racks carried by one of the walls of the support branch, according to the second embodiment.
  • Figures 1 and 4 show a tool 1a, with adjustable articulated branches comprising a first branch 3a, 3b said central articulated between the two walls 4, 5 of a second branch 2a, 2b said support by means of a member 6 spherical.
  • Each branch is terminated by a jaw 7, 8 the shape and characteristics of which may vary according to the particular function of the tool and / or the specific conditions of its use.
  • the support branch 2a has two circular bores 9a, 10a formed respectively on the walls 4 and 5.
  • the central branch 3a has as to it a bore ia oblong provided with a rack 13a disposed on its two long sides.
  • the spherical member 6 takes its place in the space delimited by the different bores 9a, 10a, l ia where it is kept mobile in rotation thanks to the particular internal shape of the circular bores 9a, 10a; shape which consists of a spherical surface portion enclosing said member 6 as closely as possible, without blocking it.
  • Figure 3 shows, more particularly, the cooperation between the thread 15 on the outer surface of the spherical member 6 and the rack 13a disposed along the bore l ia oblong.
  • Organ 6 spherical, movable in rotation about an axis parallel to the direction in which the rack 13a is disposed, can thus be moved in translation along said rack 13a, by simple screwing or unscrewing.
  • the branch 2a support is mounted movable in rotation around an articulation means constituted by a spherical threaded member 6 whose position relative to the central branch 3a can be modified in order to adjust the relative spacing of said branches 2a , 3a.
  • the branch 2b support is provided with two oblong bores 9b and 10b formed respectively on the walls 4 and 5 and each provided with a rack respectively 13b, 14b.
  • the central branch 3b has only a circular bore 1 lb.
  • the spherical member 6 is there also arranged in the space delimited by the three bores 9b, 10b, 1 lb (FIG. 5) and also has on its outer surface a thread 15 which cooperates with the two racks 13b, 14b.
  • each rack 13b, 14b presents longitudinally, at the level of each part intended to come into contact with the spherical member 6b threaded in order to cooperate with it, a shape whose surface is constituted by a longitudinal portion of cylindrical surface.
  • the internal shape of the circular bore 1 lb is in turn constituted by a surface corresponding to a portion of spherical surface complementary to the central part of the spherical member with which it is in contact.
  • the spherical member 6 is movable in rotation about an axis parallel to the direction in which each rack is disposed.
  • the equatorial part of the outer surface of said member 6 comprises a non-slip structure capable of promoting its manipulation.
  • the pliers are a tool with multiple uses and whose characteristics must be carefully adapted to the intended use.
  • the environment or the position of the object to be grasped, its nature, its size, the physical constraint or the deformation of the object you want to subject it to are the main factors allowing you to precisely define the shape of the tool.
  • the invention is in no way limited by the features which have been specified in the foregoing or by the details of the particular embodiments chosen to illustrate said invention. This is particularly the case for the conformation of each rack, as well as the associated thread or threads, which can be variable depending on the physical constraints to be subjected.
  • the invention is not limited to pliers with variable openings but relates, more generally, to any tool with articulated branches comprising an adjustment device making it possible to modify the position of the point of articulation of said branches relative to one of them and, therefore, to adjust their relative spacing.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Surgical Instruments (AREA)
  • Food-Manufacturing Devices (AREA)
  • Gripping On Spindles (AREA)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
  • Scissors And Nippers (AREA)
  • Walking Sticks, Umbrellas, And Fans (AREA)
  • Gripping Jigs, Holding Jigs, And Positioning Jigs (AREA)

Abstract

A tool (1a) with adjustable hinged handles, particularly adjustable pliers, consisting of a first, central handle (3a) pivotably mounted between two walls (4) of a second, supporting handle (2a) by a hinge means. The hinge means consists of a spherical member (6) translatably movable relative to one of the two handles and rotatably movable relative to the other handle. The outer surface of said member includes a helical screw thread (15) engaging at least one rack (13a) on one of the handles (3a). The tool may be used as adjustable pliers, particularly gripping pliers.

Description

OUTIL A BRANCHES ARTICULEES REGLABLES TOOL WITH ADJUSTABLE ARTICULATED BRANCHES
La présente invention concerne un outil à branches articulées comportant un dispositif de réglage de l'ecartement relatif des branches.The present invention relates to a tool with articulated branches comprising a device for adjusting the relative spacing of the branches.
L'invention trouve une application particulièrement avantageuse dans le domaine des pinces à ouvertures variables, notamment de type multiprise.The invention finds a particularly advantageous application in the field of pliers with variable openings, in particular of the multiple socket type.
D'une manière générale, une pince est constituée de deux leviers retenus par un axe solidaire d'un des leviers et monté tournant dans le deuxième.Generally, a clamp consists of two levers retained by an axis integral with one of the levers and mounted rotating in the second.
L'état de la technique correspondant aux pinces à mâchoires réglables comprend un premier type d'outil, constitué de deux branches reliées par un axe d'articulation mobile dans une ouverture oblongue ménagée dans l'une d'elles. Cette ouverture comporte une succession de crans qui coopèrent avec l'axe d'articulation de manière à offrir plusieurs positions d'utilisation à la branche pivotant autour de cet axe, par simple déplacement dudit axe dans ladite ouverture. Selon la configuration adoptée, les crans sont répartis sur l'un ou sur les deux grands côtés de l'ouverture et l'axe est pourvu d'un ou deux méplats.The state of the art corresponding to adjustable jaw pliers comprises a first type of tool, consisting of two branches connected by a movable hinge pin in an oblong opening formed in one of them. This opening comprises a succession of notches which cooperate with the articulation axis so as to offer several positions of use to the branch pivoting about this axis, by simple displacement of said axis in said opening. Depending on the configuration adopted, the notches are distributed on one or on the two long sides of the opening and the axis is provided with one or two flats.
Ce type de dispositif présente toutefois l'inconvénient d'engendrer une usure rapide au niveau des différentes parties en contact. En effet, la section de l'axe d'articulation n'étant pas circulaire de part la présence du ou des méplats, celui-ci ne travaille pas sur toute sa surface et les différentes contraintes mécaniques ne sont supportées que par les parties cylindriques directement en contact avec les crans. De plus, des difficultés d'enclenchement surviennent fréquemment lors du réglage de l'ecartement des branches en raison de la nécessité de positionner précisément l'axe d'articulation non cylindrique par rapport à la succession de crans portée par l'ouverture oblongue. Des phénomènes de coincements font également partie des inconvénients relatifs à l'utilisation d'un tel dispositif.However, this type of device has the drawback of causing rapid wear on the various parts in contact. In fact, the section of the articulation axis not being circular due to the presence of the flat or flat surfaces, this does not work over its entire surface and the various mechanical stresses are only supported by the cylindrical parts directly in contact with the notches. In addition, interlocking difficulties frequently arise when adjusting the spacing of the branches because of the need to precisely position the non-cylindrical articulation axis with respect to the succession of notches carried by the oblong opening. Stuck phenomena are also part of the drawbacks relating to the use of such a device.
Le second type de pince à ouverture variable de l'état de la technique reprend une constitution générale sensiblement identique à celle précédemment décrite, à l'exception du système de réglage à crémaillère qui est remplacé par un système d'articulation à secteurs dans lequel, schématiquement. une nervure courbe ménagée sur une branche coopère avec des rainures de formes complémentaires disposées sur la surface coulissante de l'autre branche. On retrouve également avec ce système les problèmes d'enclenchement et de coincement rencontrés avec l'autre type de pince, même s'ils sont ici d'origine différente en raison de la nature particulière du dispositif d'articulation réglable.The second type of variable opening forceps of the state of the art has a general constitution substantially identical to that previously described, with the exception of the rack adjustment system which is replaced by a sector articulation system in which, schematically. a curved rib formed on one branch cooperates with grooves of complementary shapes arranged on the sliding surface of the other branch. We also find with this system the interlocking and jamming problems encountered with the other type of clamp, even if they are here of different origin due to the particular nature of the adjustable articulation device.
Il est cependant important de noter que dans les deux cas, le réglage de la position relative des mâchoires impose une ouverture quasi maximale des branches de la pince et par conséquent l'usage des deux mains de l'utilisateur, de manière à ce que le pivotement de la branche portant l'ouverture oblongue autour de l'axe d'articulation puisse être combiné avec le déplacement dudit axe dans ladite ouverture.It is however important to note that in both cases, the adjustment of the relative position of the jaws imposes an almost maximum opening of the branches of the clamp and therefore the use of both hands of the user, so that the pivoting of the branch carrying the oblong opening around the hinge axis can be combined with the displacement of said axis in said opening.
Aussi, le problème technique à résoudre par l'objet de la présente invention est de proposer un outil à branches articulées comportant un dispositif de réglage de l'ecartement relatif desdites branches qui serait manipulable d'une seule main et qui permettrait de limiter les risques de coincement ainsi que les problèmes d'enclenchement et d'usure rencontrés dans l'état de la technique.Also, the technical problem to be solved by the object of the present invention is to propose a tool with articulated branches comprising a device for adjusting the relative spacing of said branches which could be manipulated with one hand and which would limit the risks jamming as well as the engagement and wear problems encountered in the prior art.
La solution au problème technique posé consiste, selon la présente invention, en un outil à branches articulées réglables, notamment pince à ouverture variable, formé d'une première branche dite centrale articulée entre deux parois d'une seconde branche dite support par l'intermédiaire d'un moyen d'articulation constitué par un organe sphérique mobile en translation par rapport à l'une des branches et mobile en rotation par rapport à l'autre branche, ledit organe sphérique présentant sur sa surface externe au moins un filetage hélicoïdal coopérant avec au moins une crémaillère aménagée sur l'une des branches.The solution to the technical problem posed consists, according to the present invention, in a tool with adjustable articulated branches, in particular pliers with variable opening, formed of a first branch called central articulated between two walls of a second branch called support by an articulation means constituted by a spherical member movable in translation relative to one of the branches and movable in rotation relative to the other branch, said spherical member having on its external surface at least one helical thread cooperating with at least one rack fitted on one of the branches.
Selon un premier mode de réalisation de l'outil conforme à l'invention, la branche support comporte deux alésages circulaires disposés en vis-à-vis sur les deux parois enserrant la branche centrale, qui est elle même pourvue d'un alésage oblong positionné en regard desdits alésages circulaires et pourvu d'une crémaillère coopérant avec le ou les filetages de l'organe sphérique. L'organe sphérique vient prendre place dans l'espace défini par ces différents alésages. Ceux-ci présentent avantageusement des dimensions et des formes intérieures aptes à assurer le maintien, entre lesdites parois de la branche support, de l'organe sphérique mobile en translation par rapport à l'alésage oblong et mobile en rotation par rapport à l'ensemble des alésages.According to a first embodiment of the tool according to the invention, the support branch comprises two circular bores arranged opposite one another on the two walls enclosing the central branch, which is itself provided an oblong bore positioned opposite said circular bores and provided with a rack cooperating with the thread or threads of the spherical member. The spherical organ takes place in the space defined by these different bores. These advantageously have dimensions and internal shapes capable of ensuring the maintenance, between said walls of the support branch, of the spherical member movable in translation relative to the oblong bore and movable in rotation relative to the assembly. bores.
Selon un second mode de réalisation de l'invention, deux alésages oblongs sont ménagés en vis-à-vis sur les deux parois de la branche support, et chacun d'eux est pourvu d'une crémaillère coopérant avec le ou les filetages de l'organe sphérique. La branche centrale quant à elle est dotée d'un alésage circulaire positionné en regard desdits alésages oblongs de manière à définir ensemble un espace dans lequel vient prendre place l'organe sphérique. Dans ce mode de réalisation, les dimensions et les formes intérieures des différents alésages sont aptes à maintenir, entre les parois de la branche support, l'organe sphérique mobile en translation par rapport aux deux alésages oblongs et mobiles en rotation par rapport à l'ensemble des alésages.According to a second embodiment of the invention, two oblong bores are arranged opposite on the two walls of the support branch, and each of them is provided with a rack cooperating with the thread or threads of the 'spherical organ. As for the central branch, it has a circular bore positioned opposite said oblong bores so as to define together a space in which the spherical member takes place. In this embodiment, the dimensions and internal shapes of the different bores are capable of holding, between the walls of the support branch, the spherical member movable in translation relative to the two oblong bores and movable in rotation relative to the set of bores.
Grâce au fait que, suivant l'invention, l'organe sphérique présente sur sa surface externe au moins un filetage hélicoïdal coopérant avec au moins une crémaillère aménagée sur l'une des branches, l'organe sphérique peut être déplacé facilement et précisément par rapport à la branche sur laquelle est disposée la crémaillère, de manière à modifier la position du point d'articulation des deux branches et par conséquent régler leur écartement relatif. Par ailleurs, la combinaison du ou des filetages avec le ou les crémaillères permet de réaliser un dispositif de réglage fiable et précis offrant une infinité de positions d'utilisation stables, et une souplesse de conception de l'outil.Thanks to the fact that, according to the invention, the spherical member has on its external surface at least one helical thread cooperating with at least one rack arranged on one of the branches, the spherical member can be moved easily and precisely relative to the branch on which the rack is arranged, so as to modify the position of the point of articulation of the two branches and consequently adjust their relative spacing. Furthermore, the combination of the thread (s) with the rack (s) makes it possible to produce a reliable and precise adjustment device offering an infinity of stable positions of use, and a flexibility of design of the tool.
Selon un mode de réalisation préféré de l'invention, l'organe sphérique comporte un unique filetage sur sa surface extérieure.According to a preferred embodiment of the invention, the spherical member has a single thread on its outer surface.
Les formes intérieures des différents alésages sont définies de manière à permettre un maintien précis de l'organe sphérique entre les parois de la branche support, tout en préservant sa mobilité en translation et en rotation par rapport aux différents alésages. A cet effet, la forme intérieure de chaque alésage circulaire est constituée avantageusement par une portion de surface sphérique, complémentaire de la partie de l'organe sphérique avec laquelle elle est en contact. Dans le même but et selon un mode de réalisation préféré de l'invention, chaque crémaillère présente une forme adaptée à la géométrie de la surface de l'organe sphérique fileté avec laquelle elle coopère et qui est fonction de la position de ladite crémaillère par rapport audit organe sphérique. De manière particulièrement avantageuse, chaque crémaillère présente longitudinalement, au niveau de chaque partie destinée à venir au contact dudit organe sphérique, une forme dont la surface est constituée par une portion longitudinale de surface cylindrique.The internal shapes of the different bores are defined so as to allow precise maintenance of the spherical member between the walls of the support branch, while preserving its mobility in translation and in rotation with respect to the different bores. To this end, the internal shape of each circular bore advantageously consists of a portion of spherical surface, complementary to the part of the spherical member with which it is in contact. For the same purpose and according to a preferred embodiment of the invention, each rack has a shape adapted to the geometry of the surface of the spherical threaded member with which it cooperates and which is a function of the position of said rack relative to said spherical organ. In a particularly advantageous manner, each rack has longitudinally, at the level of each part intended to come into contact with said spherical member, a shape whose surface is constituted by a longitudinal portion of cylindrical surface.
Une telle configuration permet également de limiter au maximum le jeu existant entre les différentes pièces mobiles constituant l'articulation de l'outil, afin d'en améliorer encore la précision et la fiabilité.Such a configuration also makes it possible to limit as much as possible the play existing between the different moving parts constituting the articulation of the tool, in order to further improve its precision and reliability.
Suivant d'autres caractéristiques avantageuses :According to other advantageous characteristics:
- l'axe de rotation de l'organe sphérique est parallèle à la direction suivant laquelle est disposée la ou chaque crémaillère;- The axis of rotation of the spherical member is parallel to the direction in which the or each rack is disposed;
- la partie équatoriale de la surface extérieure de l'organe sphérique comporte une structure antidérapante.- The equatorial part of the outer surface of the spherical member has a non-slip structure.
L'invention, telle qu'ainsi définie dans ses deux modes de réalisation, présente l'avantage d'être d'une utilisation particulièrement aisée en raison de la possibilité de régler l'ecartement relatif des branches d'une seule main.The invention, as thus defined in its two embodiments, has the advantage of being particularly easy to use because of the possibility of adjusting the relative spacing of the branches with one hand.
La description qui va suivre en regard des dessins annexés, donnés à titre d'exemples non limitatifs, fera bien comprendre en quoi consiste l'invention et comment elle peut être réalisée.The description which follows with reference to the appended drawings, given by way of nonlimiting examples, will make it clear what the invention consists of and how it can be implemented.
La figure 1 représente une vue latérale d'un outil à branches articulées réglables, selon un premier mode de réalisation de l'invention.FIG. 1 represents a side view of a tool with adjustable articulated branches, according to a first embodiment of the invention.
La figure 2 est une vue de dessus en coupe partielle représentant schématiquement l'articulation de l'outil illustré à la figure 1. La figure 3 est une vue partielle de côté illustrant la coopération entre l'organe sphérique fileté et la crémaillère portée par la branche centrale, conformément au premier mode de réalisation.FIG. 2 is a top view in partial section schematically representing the articulation of the tool illustrated in FIG. 1. Figure 3 is a partial side view illustrating the cooperation between the threaded spherical member and the rack carried by the central branch, according to the first embodiment.
La figure 4 est une vue latérale d'un outil à branches articulées réglables, selon un second mode de réalisation.Figure 4 is a side view of a tool with adjustable articulated branches, according to a second embodiment.
La figure 5 est une vue de dessus en coupe partielle représentant schématiquement l'articulation de l'outil illustré à la figure 4.FIG. 5 is a top view in partial section schematically representing the articulation of the tool illustrated in FIG. 4.
La figure 6 est une vue partielle de côté illustrant la coopération entre l'organe sphérique fileté et une des crémaillères portée par une des parois de la branche support, conformément au second mode de réalisation.Figure 6 is a partial side view illustrating the cooperation between the spherical threaded member and one of the racks carried by one of the walls of the support branch, according to the second embodiment.
Pour des raisons de clarté, les mêmes éléments ont été désignés par les mêmes références et la représentation des dessins est schématique.For reasons of clarity, the same elements have been designated by the same references and the representation of the drawings is schematic.
Les figures 1 et 4 montrent un outil la, lb à branches articulées réglables comportant une première branche 3a, 3b dite centrale articulée entre les deux parois 4, 5 d'une seconde branche 2a, 2b dite support par l'intermédiaire d'un organe 6 sphérique. Chaque branche est terminée par une mâchoire 7, 8 dont la forme et les caractéristiques peuvent varier selon la fonction particulière de l'outil et/ou les conditions spécifiques de son utilisation.Figures 1 and 4 show a tool 1a, with adjustable articulated branches comprising a first branch 3a, 3b said central articulated between the two walls 4, 5 of a second branch 2a, 2b said support by means of a member 6 spherical. Each branch is terminated by a jaw 7, 8 the shape and characteristics of which may vary according to the particular function of the tool and / or the specific conditions of its use.
Comme on peut le voir sur les figures 1, 2 et 3 illustrant le premier mode de réalisation de l'invention, la branche support 2a comporte deux alésages 9a, 10a circulaires ménagés respectivement sur les parois 4 et 5. La branche centrale 3a comporte quant à elle un alésage l ia oblong pourvu d'une crémaillère 13a disposé sur ses deux grands côtés. Conformément à la figure 2, l'organe 6 sphérique vient prendre place dans l'espace délimité par les différents alésages 9a, 10a, l ia où il est maintenu mobile en rotation grâce à la forme intérieure particulière des alésages 9a, 10a circulaires; forme qui est constituée par une portion de surface sphérique enserrant au plus près ledit organe 6, sans pour autant le bloquer.As can be seen in FIGS. 1, 2 and 3 illustrating the first embodiment of the invention, the support branch 2a has two circular bores 9a, 10a formed respectively on the walls 4 and 5. The central branch 3a has as to it a bore ia oblong provided with a rack 13a disposed on its two long sides. In accordance with FIG. 2, the spherical member 6 takes its place in the space delimited by the different bores 9a, 10a, l ia where it is kept mobile in rotation thanks to the particular internal shape of the circular bores 9a, 10a; shape which consists of a spherical surface portion enclosing said member 6 as closely as possible, without blocking it.
La figure 3 montre, plus particulièrement, la coopération entre le filetage 15 présent sur la surface extérieure de l'organe 6 sphérique et la crémaillère 13a disposée le long de l'alésage l ia oblong. L'organe 6 sphérique, mobile en rotation autour d'un axe parallèle à la direction suivant laquelle est disposée la crémaillère 13a, peut ainsi être déplacé en translation le long de ladite crémaillère 13a, par simple vissage ou dévissage. En résumé, la branche 2a support est montée mobile en rotation autour d'un moyen d'articulation constitué par un organe 6 sphérique fileté dont la position par rapport à la branche 3a centrale peut être modifiée afin de régler l'ecartement relatif desdites branches 2a, 3a.Figure 3 shows, more particularly, the cooperation between the thread 15 on the outer surface of the spherical member 6 and the rack 13a disposed along the bore l ia oblong. Organ 6 spherical, movable in rotation about an axis parallel to the direction in which the rack 13a is disposed, can thus be moved in translation along said rack 13a, by simple screwing or unscrewing. In summary, the branch 2a support is mounted movable in rotation around an articulation means constituted by a spherical threaded member 6 whose position relative to the central branch 3a can be modified in order to adjust the relative spacing of said branches 2a , 3a.
Dans le second mode de réalisation illustré aux figures 4, 5 et 6 la branche 2b support est dotée de deux alésages 9b et 10b oblongs ménagés respectivement sur les parois 4 et 5 et pourvus chacun d'une crémaillère respectivement 13b, 14b. La branche 3b centrale ne comporte qu'un alésage l lb circulaire. L'organe sphérique 6 est là aussi disposé dans l'espace délimité par les trois alésages 9b, 10b, 1 lb (figure 5) et comporte également sur sa surface extérieure un filetage 15 qui coopère avec les deux crémaillères 13b, 14b. L'organe 6 sphérique, autour duquel est monté libre en rotation la branche 3b centrale, est par ailleurs maintenu entre les parois 4, 5 de la branche 2b support grâce à la forme intérieure particulière des alésages 9b, 10b oblongs ainsi que des crémaillères 13b, 14b dont ils sont pourvus. Même si cela n'apparaît pas sur la figure 5 qui demeure une représentation schématique de l'articulation de l'outil selon le second mode de réalisation, chaque crémaillère 13b, 14b présente longitudinalement, au niveau de chaque partie destinée à venir au contact de l'organe 6b sphérique fileté afin de coopérer avec lui, une forme dont la surface est constituée par une portion longitudinale de surface cylindrique. Cette conformation permet ainsi de maintenir ledit organe 6b mobile en rotation et ceci quel que soit sa position par rapport auxdites crémaillères 13b, 14b. La forme intérieure de l'alésage l lb circulaire est quant à elle constituée par une surface correspondant à une portion de surface sphérique complémentaire de la partie centrale de l'organe sphérique avec laquelle est en contact.In the second embodiment illustrated in Figures 4, 5 and 6 the branch 2b support is provided with two oblong bores 9b and 10b formed respectively on the walls 4 and 5 and each provided with a rack respectively 13b, 14b. The central branch 3b has only a circular bore 1 lb. The spherical member 6 is there also arranged in the space delimited by the three bores 9b, 10b, 1 lb (FIG. 5) and also has on its outer surface a thread 15 which cooperates with the two racks 13b, 14b. The spherical member 6, around which the central branch 3b is mounted to rotate freely, is also held between the walls 4, 5 of the support branch 2b by virtue of the particular internal shape of the oblong bores 9b, 10b and also the racks 13b , 14b with which they are provided. Even if this does not appear in FIG. 5 which remains a schematic representation of the articulation of the tool according to the second embodiment, each rack 13b, 14b presents longitudinally, at the level of each part intended to come into contact with the spherical member 6b threaded in order to cooperate with it, a shape whose surface is constituted by a longitudinal portion of cylindrical surface. This conformation thus keeps said movable member 6b in rotation and this regardless of its position relative to said racks 13b, 14b. The internal shape of the circular bore 1 lb is in turn constituted by a surface corresponding to a portion of spherical surface complementary to the central part of the spherical member with which it is in contact.
Quel que soit le mode de réalisation retenu, l'organe 6 sphérique est mobile en rotation autour d'un axe parallèle à la direction suivant laquelle est disposée chaque crémaillère. De manière avantageuse, la partie équatoriale de la surface extérieure dudit organe 6 comporte une structure antidérapante apte à favoriser sa manipulation.Whatever the embodiment chosen, the spherical member 6 is movable in rotation about an axis parallel to the direction in which each rack is disposed. Advantageously, the equatorial part of the outer surface of said member 6 comprises a non-slip structure capable of promoting its manipulation.
La pince est un outil dont les utilisations sont multiples et dont les caractéristiques doivent être soigneusement adaptées à l'usage envisagé. L'environnement ou la position de l'objet à saisir, sa nature, sa dimension, la contrainte physique ou la déformation de l'on veut lui faire subir sont les principaux facteurs permettant de définir précisément la forme de l'outil. Aussi, l'invention n'est en rien limitée par les particularités qui ont été spécifiées dans ce qui précède ou par les détails des modes de réalisations particuliers choisis pour illustrer ladite invention. C'est le cas notamment de la conformation de chaque crémaillère, ainsi que du ou des filetages associés, qui peut être variable en fonction des contraintes physiques à subir.The pliers are a tool with multiple uses and whose characteristics must be carefully adapted to the intended use. The environment or the position of the object to be grasped, its nature, its size, the physical constraint or the deformation of the object you want to subject it to are the main factors allowing you to precisely define the shape of the tool. Also, the invention is in no way limited by the features which have been specified in the foregoing or by the details of the particular embodiments chosen to illustrate said invention. This is particularly the case for the conformation of each rack, as well as the associated thread or threads, which can be variable depending on the physical constraints to be subjected.
Naturellement, et bien que constituant un domaine d'application particulièrement avantageux, l'invention ne se limite pas aux pinces ouvertures variables mais concerne, plus généralement, tout outil à branches articulées comportant un dispositif de réglage permettant de modifier la position du point d'articulation desdites branches par rapport à l'une d'entre elles et, par conséquent, de régler leur écartement relatif. Naturally, and although constituting a particularly advantageous field of application, the invention is not limited to pliers with variable openings but relates, more generally, to any tool with articulated branches comprising an adjustment device making it possible to modify the position of the point of articulation of said branches relative to one of them and, therefore, to adjust their relative spacing.

Claims

REVENDICATIONS
1. Outil (la, lb) à branches articulées réglables, notamment pince à ouverture variable, constitué d'une première branche (3a,3b) dite centrale articulée entre deux parois (4,5) d'une seconde branche (2a,2b) dite support par l'intermédiaire d'un moyen d'articulation, caractérisé en ce que ledit moyen d'articulation est constitué par un organe (6) sphérique mobile en translation par rapport à l'une des deux branches et mobile en rotation par rapport à l'autre branche, ledit organe (6) sphérique présentant sur sa surface externe au moins un filetage (15) hélicoïdal coopérant avec au moins une crémaillère (13a, 13b, 14b) aménagée sur l'une des branches (2a, 2b, 3a, 3b). 1. Tool (la, lb) with adjustable articulated branches, in particular variable opening pliers, consisting of a first branch (3a, 3b) called central articulated between two walls (4,5) of a second branch (2a, 2b ) said support by means of an articulation means, characterized in that said articulation means is constituted by a spherical member (6) movable in translation relative to one of the two branches and movable in rotation by relative to the other branch, said spherical member (6) having on its external surface at least one helical thread (15) cooperating with at least one rack (13a, 13b, 14b) arranged on one of the branches (2a, 2b , 3a, 3b).
2. Outil selon la revendication 1, caractérisé en ce que la branche (2a) support comporte deux alésages (9a, 10a) circulaires disposés en vis-à-vis sur les deux parois (4,5) enserrant la branche (3a) centrale, en ce que la branche (3a) centrale comporte un alésage (l ia) oblong positionné en regard des deux alésages (9a, 10a) circulaires et pourvu d'une crémaillère (13a) coopérant avec le ou les filetages (15) de l'organe (6) sphérique, et en ce que les différents alésages (9a, 10a, 1 1 a) présentent des dimensions et des formes intérieures aptes à maintenir, entre lesdites parois (4,5), l'organe (6) sphérique mobile en translation par rapport à l'alésage (l ia) oblong et mobile en rotation par rapport à l'ensemble des alésages (9a,10a,l la). 2. Tool according to claim 1, characterized in that the branch (2a) support has two circular bores (9a, 10a) arranged opposite on the two walls (4,5) enclosing the central branch (3a) , in that the central branch (3a) has an oblong bore (l ia) positioned opposite the two circular bores (9a, 10a) and provided with a rack (13a) cooperating with the thread (s) (15) of the 'organ (6) spherical, and in that the different bores (9a, 10a, 1 1 a) have dimensions and internal shapes capable of maintaining, between said walls (4,5), the member (6) spherical movable in translation relative to the oblong bore (l ia) and movable in rotation relative to all of the bores (9a, 10a, l la).
3. Outil selon la revendication 1, caractérisé en ce que la branche (2b) support comporte deux alésages (9b, 10b) oblongs disposés en vis-à-vis sur les deux parois (4,5) enserrant la branche (3b) centrale et dont chacun est pourvu d'une crémaillère ( 13b, 14b) coopérant avec le ou les filetages (15) de l'organe (6) sphérique, en ce que la branche (3b) centrale comporte un alésage (l lb) circulaire positionné en regard des deux alésages (9b, 10b) oblongs, et en ce que les différents alésages (9b, 10b, l lb) présentent des dimensions et des formes intérieures aptes à maintenir, entre lesdites parois (4,5), l'organe (6) sphérique mobile en translation par rapport aux deux alésages (9b, 10b) oblongs et mobiles en rotation par rapport à l'ensemble des alésages (9b, 10b, l lb).3. Tool according to claim 1, characterized in that the branch (2b) support has two bores (9b, 10b) oblong arranged in facing relation on the two walls (4,5) enclosing the branch (3b) central and each of which is provided with a rack (13b, 14b) cooperating with the thread (s) (15) of the spherical member (6), in that the central branch (3b) has a circular bore (1 lb) positioned opposite the two oblong bores (9b, 10b), and in that the different bores (9b, 10b, 1 lb) have dimensions and internal shapes capable of holding, between said walls (4,5), the member (6) spherical mobile in translation relative to the two bores (9b, 10b) oblong and movable in rotation relative to all the bores (9b, 10b, 1 lb).
4. Outil selon l'une quelconque des revendications 1 à 3, caractérisé en ce que la forme intérieure de chaque alésage (9a, 10a, l lb) circulaire est constituée par une portion de surface sphérique complémentaire de la partie de l'organe (6) sphérique avec laquelle elle est en contact.4. Tool according to any one of claims 1 to 3, characterized in that the internal shape of each circular bore (9a, 10a, 1 lb) is constituted by a portion of spherical surface complementary to the part of the member ( 6) spherical with which it is in contact.
5. Outil selon l'une quelconque des revendications 1 à 4, caractérisé en ce que chaque crémaillère (13a,13b,14b) présente longitudinalement, au niveau de chaque partie destinée à venir au contact de l'organe (6) sphérique fileté, une forme dont la surface est constituée par une portion longitudinale de surface cylindrique.5. Tool according to any one of claims 1 to 4, characterized in that each rack (13a, 13b, 14b) has longitudinally, at each part intended to come into contact with the threaded spherical member (6), a shape whose surface consists of a longitudinal portion of cylindrical surface.
6. Outil selon l'une quelconque des revendications 1 à 5, caractérisé en ce que l'organe (6) sphérique comporte un filetage (15) unique sur sa surface extérieure. 6. Tool according to any one of claims 1 to 5, characterized in that the spherical member (6) has a single thread (15) on its outer surface.
7. Outil selon l'une quelconque des revendications 1 à 6, caractérisé en ce que l'axe de rotation de l'organe (6) sphérique est parallèle à la direction suivant laquelle est disposée la ou chaque crémaillère (13a, 13b, 14b). 7. Tool according to any one of claims 1 to 6, characterized in that the axis of rotation of the spherical member (6) is parallel to the direction in which the or each rack (13a, 13b, 14b) is arranged. ).
8. Outil selon l'une quelconque des revendications 1 à 7, caractérisé en ce que la partie équatoriale de la surface extérieure de l'organe (6) sphérique comporte une structure antidérapante. 8. Tool according to any one of claims 1 to 7, characterized in that the equatorial part of the outer surface of the spherical member (6) has a non-slip structure.
PCT/FR1996/001152 1995-07-27 1996-07-22 Tool with adjustable hinged handles WO1997004922A1 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
AU66627/96A AU6662796A (en) 1995-07-27 1996-07-22 Tool with adjustable hinged handles
EP96926442A EP0840666B1 (en) 1995-07-27 1996-07-22 Tool with adjustable hinged handles
AT96926442T ATE213447T1 (en) 1995-07-27 1996-07-22 TOOL WITH ADJUSTABLE UNGUIDED ARMS
DE69619380T DE69619380T2 (en) 1995-07-27 1996-07-22 TOOL WITH ADJUSTABLE, UNFEED ARMS

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR95/09357 1995-07-27
FR9509357A FR2737147B1 (en) 1995-07-27 1995-07-27 TOOL WITH ADJUSTABLE ARTICULATED BRANCHES

Publications (1)

Publication Number Publication Date
WO1997004922A1 true WO1997004922A1 (en) 1997-02-13

Family

ID=9481605

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/FR1996/001152 WO1997004922A1 (en) 1995-07-27 1996-07-22 Tool with adjustable hinged handles

Country Status (7)

Country Link
EP (1) EP0840666B1 (en)
AT (1) ATE213447T1 (en)
AU (1) AU6662796A (en)
DE (1) DE69619380T2 (en)
ES (1) ES2172672T3 (en)
FR (1) FR2737147B1 (en)
WO (1) WO1997004922A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU711408B3 (en) * 1999-06-15 1999-10-14 Jin-Fu Chen A tool

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB131855A (en) * 1900-01-01
FR466423A (en) * 1912-12-20 1914-05-12 Volmer Nachf E Branch pliers can move in the ball hinge of the tool
DE806779C (en) * 1950-02-11 1951-06-18 Krempel & Co Pipe wrench, wrench or the like with adjustable jaw width
US3824882A (en) * 1972-05-04 1974-07-23 C Burthardt Adjustable screw-lock pliers
FR2361202A1 (en) * 1976-08-11 1978-03-10 Bahco Verktyg Ab VARIABLE SPACING CLAMP

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB131855A (en) * 1900-01-01
FR466423A (en) * 1912-12-20 1914-05-12 Volmer Nachf E Branch pliers can move in the ball hinge of the tool
DE806779C (en) * 1950-02-11 1951-06-18 Krempel & Co Pipe wrench, wrench or the like with adjustable jaw width
US3824882A (en) * 1972-05-04 1974-07-23 C Burthardt Adjustable screw-lock pliers
FR2361202A1 (en) * 1976-08-11 1978-03-10 Bahco Verktyg Ab VARIABLE SPACING CLAMP

Also Published As

Publication number Publication date
EP0840666B1 (en) 2002-02-20
FR2737147A1 (en) 1997-01-31
EP0840666A1 (en) 1998-05-13
DE69619380T2 (en) 2002-11-14
ES2172672T3 (en) 2002-10-01
DE69619380D1 (en) 2002-03-28
AU6662796A (en) 1997-02-26
ATE213447T1 (en) 2002-03-15
FR2737147B1 (en) 1997-10-17

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