EP0865880B1 - Multifunctional pliers - Google Patents
Multifunctional pliers Download PDFInfo
- Publication number
- EP0865880B1 EP0865880B1 EP96402671A EP96402671A EP0865880B1 EP 0865880 B1 EP0865880 B1 EP 0865880B1 EP 96402671 A EP96402671 A EP 96402671A EP 96402671 A EP96402671 A EP 96402671A EP 0865880 B1 EP0865880 B1 EP 0865880B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- arm
- blade
- branch
- rod
- pliers
- 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 - Lifetime
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26B—HAND-HELD CUTTING TOOLS NOT OTHERWISE PROVIDED FOR
- B26B17/00—Hand cutting tools, i.e. with the cutting action actuated by muscle power with two jaws which come into abutting contact
- B26B17/02—Hand cutting tools, i.e. with the cutting action actuated by muscle power with two jaws which come into abutting contact with jaws operated indirectly by the handles, e.g. through cams or toggle levers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D39/00—Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating; Tube expanders
- B21D39/03—Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating; Tube expanders of sheet metal otherwise than by folding
- B21D39/034—Joining superposed plates by piercing
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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
Definitions
- the present invention relates to pliers with multiple functions, in particular of the kind allowing those carrying out various machining works, by carrying out as the case may be, in particular in one or more superimposed sheets, a drilling or a puncture with folding of the edges of the hole, crimping between a sleeve and an element surrounded by it, a cut or any other similar operation.
- EP-A-0 203 241 which has been the subject of a deposit in the name of the Applicant Company and which describes a pair of pliers of this kind, characterized in that that it comprises a body forming a handle, provided with a handle, and a lever also having a handle, which can be maneuvered closer to the handle, this lever forming part of a toggle suitable for controlling the movement of a sliding blade, guided by the body and arranged opposite a matrix also carried by the body, against which the sheet rests, the assembly of sheets or the part on which an operation of the kind of that recalled above is to be carried out by means a suitable tool attached to the end of the sliding blade.
- the present invention is an improvement made to the clamp considered in this document, making it possible to improve its operation and to facilitate its implementation, by providing an even more effective assembly of easy and safe use, requiring in particular no technicality. or specific know-how on the part of its user.
- the intended implementation requires that the user hold the pliers with two hands, one grasping the handle of the handle, the other that of the lever, to exert an approaching effort from one to the other, resulting in the thrust supplied to the blade.
- the clamp considered comprising a body provided with or on which a first branch is mounted, with a gripping zone or handle at the end, and a second branch also provided at the end, opposite the body, with a similar grip zone, this second branch being movable relative to the body about a pivot axis carried by the latter, and a toggle mechanism, suitable for transforming the rotational movement of the second branch into a translational movement for a blade, sliding in the body in the direction of a matrix disposed opposite and also carried by the body by a return part, this matrix being designed to cooperate with a working tool mounted at the end of the blade directed towards the matrix, is characterized in that the two branches of the clamp are sufficiently close to one another to be able to be grasped together by one hand of the user, the second branch being able to be brought closer to the first branch following a contraction of the fingers towards the palm, and in that the sliding blade comprises a hinge pin with a control rod , rotatably mounted relative to the body about a fixed pivot and driven in its
- the clamp comprises a hairpin return spring, mounted between the two branches, so as to exert a permanent force on them, tending to separate the second branch from the first plugged.
- the return spring is wound in its central part around a support stud carried by the first fixed branch, the ends of the pin being respectively stopped and immobilized by one and the other of the two branches.
- the fixed pivot around which the control rod rotates passes through a groove provided in the longitudinal direction of the rod to allow a slight relative movement of the latter relative to the pivot, following the movement of the sliding blade, itself connected to the link around the articulation axis.
- the body has a section substantially in the shape of an inverted U, the sides of which extend parallel to the sliding blade housed therebetween, these sides each comprising an elongated buttonhole, traversed by the articulation axis of the rod on the blade.
- the sliding blade itself has a central groove in which engages a fixed finger carried by the body and which extends transversely between its parallel sides, in order to ensure the guiding of the blade remaining permanently parallel to itself during its movement under the effect of the movement of the rod.
- the clamp considered comprises a body 1, produced by means of a metal piece 2, folded on itself or shaped according to the manufacturing process used to follow the shape of an inverted U, with its sides respectively 3 and 4 parallel to each other and delimiting between them a central slot or housing 5 (see more particularly Figure 3).
- the body 1 shown is similar to that already described in the published European application EP-A-0 203 241, with in particular a part facing forward 6 forming a matrix 7, which is provided for cooperate with a sliding blade 8, the structure and mounting of which will be described below, this blade comprising, opposite the matrix 7, an active part or tool 9, suitable for cooperating with this matrix as explained below.
- the tool 9 can be an integral part of the sliding blade 8, constituting the corresponding end thereof (as illustrated in the Figures of the example considered), or alternatively, be attached and secured to this blade by any suitable means.
- the clamp comprises the equivalent of the fixed handle and the movable lever provided in this previous embodiment, but in an embodiment in itself largely different and which gives this clamp a improved efficiency.
- the body 1 comprises a first fixed branch 10 and a second movable branch 11 articulated on this body around an axis 12, the two branches having at their ends opposite to the body handles 13 and 14 allowing the user to hold the clamp securely but with one hand, so as to exert on the movable branch 11 a restoring force to bring it closer to the fixed branch 10, as illustrated in Figures 1 and 2 respectively where the branches are, in a cases discarded, and in the other practically in contact with each other.
- Each of the handles 13 and 14 can comprise, in a manner known per se, a lateral projecting element 15, forming a stop for the fingers and the thumb of the hand holding the clamp, the two branches being applied against the palm.
- One of the handles may further include a ring 16 for hanging the clamp in a rack or the like.
- the two branches 10 and 11 of the clamp are associated with an intermediate return spring 17, preferably having the general shape of a hair pin whose top is wound around a hinge pin 18, carried by the branch fixed 10 in the example shown, the two extensions 19 and 20 of the pin spring being stopped and immobilized respectively by one and the other of the two branches using any suitable means.
- each of the branches may have a hollow profile in its middle part to form a slot where each of the two extensions is housed, so as to maintain the spring and to prevent any lateral movement of the latter, without interfering with the bringing together or the mutual spacing of the two branches.
- the ends of these extensions may include a curved portion 21, which engages in a hole immobilization (not shown) provided in each of the branches.
- the link 23 includes at its end opposite the sliding blade 8, a groove 27 which extends in the longitudinal direction of the link and in which is engaged a fixed pivot 28, carried by the body 1, so that this link can be struggled in rotation with respect to this pivot while accepting a slight relative displacement with respect to it which describes the groove 27, as can be clearly seen by comparison with FIGS. 1 and 2.
- the link 23 is also articulated around an axis 29 on the sliding blade 8, the latter comprising a central groove 30, extending in the direction of movement of the blade, this groove being traversed by a guide finger 31, which is immobilized on either side and towards the outside of the lateral and parallel sides 3 and 4 of the body 1 by locking nuts 32 and 33 (Figure 3).
- an elongated buttonhole 34 in each of the sides 3 and 4 of the body 1, an elongated buttonhole 34, these two buttonholes, identical to each other and parallel to the central groove 30 of the sliding blade 8, receiving respectively the ends of the hinge pin 29 between the link 23 and the blade, these ends can again be advantageously stopped by nuts 35 and 36 (see also Figure 3).
- the link rod 23 is preferably made up of two parts, respectively 23a and 23b, forming a yoke, overlapping the sliding blade 8 housed therebetween, so as to distribute the efforts exerted on the latter by via the axis 29.
- the two parts 23 and 24 can extend over the entire length of the link or else meet in one in line with the fixed pivot 28 at its opposite end.
- FIG. 4 representing the assembly in question before the tool 9 achieves the desired puncture 40, illustrated in FIG. 5 and still more visible in FIG. 6, once the clamp released, with mutual overlap and outward folding of the edges of the hole obtained.
- the first branch 10 was fixed relative to the body 1.
- it is itself articulated around an axis 41 carried by the body, so to facilitate its approximation with the second branch 11, the stroke of which must however remain sufficient to allow the appropriate movement of the control rod 23.
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Abstract
Description
La présente invention est relative aux pinces à fonctions multiples, notamment du genre de celles permettant l'exécution de travaux d'usinage divers, en réalisant selon le cas, en particulier dans une ou plusieurs tôles superposées, un perçage ou un crevé avec rabattement des bords du trou, un sertissage entre un manchon et un élément entouré par celui-ci, une coupe ou toute autre opération similaire.The present invention relates to pliers with multiple functions, in particular of the kind allowing those carrying out various machining works, by carrying out as the case may be, in particular in one or more superimposed sheets, a drilling or a puncture with folding of the edges of the hole, crimping between a sleeve and an element surrounded by it, a cut or any other similar operation.
On fera plus spécialement référence à cet égard, à la publication européenne n° EP-A-0 203 241, ayant fait l'objet d'un dépôt au nom de la Société demanderesse et qui décrit une pince de ce genre, caractérisée en ce qu'elle comporte un corps formant un manche, muni d'une poignée, et un levier présentant également une poignée, manoeuvrable en rapprochement du manche, ce levier faisant partie d'une genouillère propre à commander le déplacement d'une lame coulissante, guidée par le corps et disposée en regard d'une matrice également portée par le corps, contre laquelle s'appuie la tôle, l'assemblage de tôles ou la pièce sur laquelle une opération du genre de celle rappelée ci-dessus est à effectuer au moyen d'un outil approprié fixé en bout de la lame coulissante.Reference will be made more particularly in this regard to European publication No. EP-A-0 203 241, which has been the subject of a deposit in the name of the Applicant Company and which describes a pair of pliers of this kind, characterized in that that it comprises a body forming a handle, provided with a handle, and a lever also having a handle, which can be maneuvered closer to the handle, this lever forming part of a toggle suitable for controlling the movement of a sliding blade, guided by the body and arranged opposite a matrix also carried by the body, against which the sheet rests, the assembly of sheets or the part on which an operation of the kind of that recalled above is to be carried out by means a suitable tool attached to the end of the sliding blade.
La demande de brevet publiée précitée décrit avec tous les détails utiles la structure, le fonctionnement et les applications de la pince à fonctions multiples considérée, permettant de bien comprendre comment elle permet de réaliser à volonté un perçage, un estampage ou un poinçonnage, ou encore un agrafage ou un sertissage, selon la nature et la forme de l'outil porté par la lame.The aforementioned published patent application describes with all the useful details the structure, the operation and the applications of the multiple-function pliers considered, making it possible to understand clearly how it allows drilling, stamping or punching, or even stapling or crimping, depending on the nature and shape of the tool carried by the blade.
La présente invention est un perfectionnement apporté à la pince considérée dans ce document, permettant d'en améliorer le fonctionnement et de faciliter sa mise en oeuvre, en procurant un ensemble encore plus efficace d'un usage aisé et sûr, ne nécessitant notamment aucune technicité ou savoir-faire particulier de la part de son utilisateur.The present invention is an improvement made to the clamp considered in this document, making it possible to improve its operation and to facilitate its implementation, by providing an even more effective assembly of easy and safe use, requiring in particular no technicality. or specific know-how on the part of its user.
Dans la pince antérieure en effet, si la commande de la lame coulissante peut s'effectuer de manière simple et rapide, avec une démultiplication notable du mouvement du levier par rapport au manche du corps, transmis à la lame coulissante de telle sorte que celle-ci puisse développer une force de poussée élevée sur une faible course afin de percer, estamper, sertir ou poinçonner des éléments pouvant présenter une grande résistance, tels qu'une ou plusieurs tôles d'acier ou autre matériau semblable, la mise en oeuvre prévue exige que l'utilisateur tienne la pince à deux mains, l'une saisissant la poignée du manche, l'autre celle du levier, pour exercer un effort de rapprochement de l'une vers l'autre, se traduisant par la poussée fournie à la lame.In the anterior clamp, in fact, if the control of the sliding blade can be carried out in a simple and rapid manner, with a significant reduction in the movement of the lever relative to the handle of the body, transmitted to the sliding blade so that the latter can develop a high thrust force over a short stroke in order to pierce, stamp, crimp or punch elements which may have high strength, such as one or more steel sheets or other similar material, the intended implementation requires that the user hold the pliers with two hands, one grasping the handle of the handle, the other that of the lever, to exert an approaching effort from one to the other, resulting in the thrust supplied to the blade.
Or, pour certains travaux plus délicats ou qui exigent une plus grande précision, il n'est pas forcément indispensable de prévoir un débattement du levier par rapport au manche qui soit important, le même effet de perçage ou de poinçonnage pouvant être obtenu, dans de nombreux cas, avec une course et une poussée plus limitée de la lame coulissante.However, for certain more delicate works or which require greater precision, it is not necessarily essential to provide a clearance of the lever relative to the handle which is significant, the same effect of drilling or punching being able to be obtained, in many cases, with a more limited stroke and thrust of the sliding blade.
On conçoit donc qu'il soit souhaitable de disposer d'un outil plus simple qui, tout en restant aussi efficace, soit plus commode à utiliser et notamment n'exige pas d'être manoeuvré à deux mains, mais seulement avec l'une de celles-ci, le mouvement de serrage avec les poignées de la pince permettant toujours de développer sur la lame un effort approprié, suffisant pour accomplir les opérations d'usinage souhaitées.It is therefore understandable that it is desirable to have a simpler tool which, while remaining as effective, is more convenient to use and in particular does not require to be operated with two hands, but only with one of these, the clamping movement with the handles of the pliers always making it possible to develop on the blade an appropriate force, sufficient to accomplish the desired machining operations.
A cet effet, la pince considérée, comportant un corps muni ou sur lequel est montée une première branche, avec en bout une zone ou poignée de préhension, et une seconde branche également munie en bout, à l'opposé du corps, d'une zone de préhension similaire, cette seconde branche étant mobile par rapport au corps autour d'un axe de pivotement porté par celui-ci, et un mécanisme à genouillère, propre à transformer le mouvement de rotation de la seconde branche en un mouvement de translation pour une lame, coulissant dans le corps en direction d'une matrice disposée en regard et également portée par le corps par une partie en retour, cette matrice étant prévue pour coopérer avec une outil de travail monté à l'extrémité de la lame dirigée vers la matrice, se caractérise en ce que les deux branches de la pince sont suffisamment voisines l'une de l'autre pour pouvoir être saisies ensemble par une seule main de l'utilisateur, la seconde branche étant apte à être rapprochée de la première branche consécutivement à une contraction des doigts vers la paume, et en ce que la lame coulissante comporte un axe d'articulation avec une biellette de commande, montée à rotation par rapport au corps autour d'un pivot fixe et entraînée dans son mouvement au moyen d'une patte de renvoi respectivement articulée sur la biellette entre le pivot et l'axe d'articulation et sur la seconde branche.To this end, the clamp considered, comprising a body provided with or on which a first branch is mounted, with a gripping zone or handle at the end, and a second branch also provided at the end, opposite the body, with a similar grip zone, this second branch being movable relative to the body about a pivot axis carried by the latter, and a toggle mechanism, suitable for transforming the rotational movement of the second branch into a translational movement for a blade, sliding in the body in the direction of a matrix disposed opposite and also carried by the body by a return part, this matrix being designed to cooperate with a working tool mounted at the end of the blade directed towards the matrix, is characterized in that the two branches of the clamp are sufficiently close to one another to be able to be grasped together by one hand of the user, the second branch being able to be brought closer to the first branch following a contraction of the fingers towards the palm, and in that the sliding blade comprises a hinge pin with a control rod , rotatably mounted relative to the body about a fixed pivot and driven in its movement by means of a return lug respectively articulated on the link between the pivot and the articulation axis and on the second branch.
Dans un mode de réalisation préféré de l'invention, la pince comporte un ressort de rappel en épingle à cheveux, monté entre les deux branches, de manière à exercer un effort permanent sur celles-ci, tendant à écarter la seconde branche de la première branche.In a preferred embodiment of the invention, the clamp comprises a hairpin return spring, mounted between the two branches, so as to exert a permanent force on them, tending to separate the second branch from the first plugged.
Selon une caractéristique complémentaire, le ressort de rappel est enroulé dans sa partie centrale autour d'un téton de support porté par la première branche fixe, les extrémités de l'épingle étant respectivement arrêtées et immobilisées par l'une et l'autre des deux branches.According to an additional characteristic, the return spring is wound in its central part around a support stud carried by the first fixed branch, the ends of the pin being respectively stopped and immobilized by one and the other of the two branches.
Selon une autre caractéristique de la pince considérée, le pivot fixe autour duquel tourne la biellette de commande traverse une rainure prévue selon la direction longitudinale de la biellette pour autoriser un léger débattement relatif de celle-ci par rapport au pivot, consécutivement au déplacement de la lame coulissante, elle-même reliée à la biellette autour de l'axe d'articulation.According to another characteristic of the clamp considered, the fixed pivot around which the control rod rotates passes through a groove provided in the longitudinal direction of the rod to allow a slight relative movement of the latter relative to the pivot, following the movement of the sliding blade, itself connected to the link around the articulation axis.
Selon encore une autre caractéristique également, le corps présente une section sensiblement en forme de U renversé, dont les côtés s'étendent parallèlement à la lame coulissante logée entre eux, ces côtés comportant chacun une boutonnière allongée, parcourue par l'axe d'articulation de la biellette sur la lame.According to yet another characteristic also, the body has a section substantially in the shape of an inverted U, the sides of which extend parallel to the sliding blade housed therebetween, these sides each comprising an elongated buttonhole, traversed by the articulation axis of the rod on the blade.
Enfin, la lame coulissante comporte elle-même une rainure centrale dans laquelle s'engage un.doigt fixe porté par le corps et qui s'étend transversalement entre ses côtés parallèles, afin d'assurer le guidage de la lame restant en permanence parallèle à elle-même au cours de son déplacement sous l'effet du mouvement de la biellette.Finally, the sliding blade itself has a central groove in which engages a fixed finger carried by the body and which extends transversely between its parallel sides, in order to ensure the guiding of the blade remaining permanently parallel to itself during its movement under the effect of the movement of the rod.
D'autres caractéristiques d'une pince à fonctions multiples conforme à l'invention, apparaîtront encore à travers la description qui suit d'un exemple de réalisation donné à titre indicatif et non limitatif en référence aux dessins annexés, sur lesquels :
- La Figure 1 est une vue en élévation de la pince considérée, avec ses deux branches en position écartée l'une de l'autre, la lame coulissante étant rétractée à l'intérieur du corps.
- La Figure 2 est une vue analogue à la Figure 1, avec les deux branches en position rapprochée, la lame étant déplacée pour venir coopérer avec la matrice portée par le corps.
- La Figure 3 est une vue en coupe transversale, à plus grande échelle, selon la ligne III-III de la Figure 2.
- Les Figures 4 et 5 sont des vues de détail à plus grande échelle également, montrant comment un outil, rapporté ou solidaire de la lame coulissante, est adapté à réaliser un crevé avec rabattement des bords dans deux tôles superposés.
- La Figure 6 illustre le profil des tôles des Figures 4 et 5 après usage et retrait de la pince considérée.
- Figure 1 is an elevational view of the clamp considered, with its two branches in a position spaced from one another, the sliding blade being retracted inside the body.
- Figure 2 is a view similar to Figure 1, with the two branches in close position, the blade being moved to cooperate with the matrix carried by the body.
- Figure 3 is a cross-sectional view, on a larger scale, along line III-III of Figure 2.
- Figures 4 and 5 are detailed views also on a larger scale, showing how a tool, attached or integral with the sliding blade, is adapted to produce a flat with edges folded in two superposed sheets.
- Figure 6 illustrates the profile of the sheets of Figures 4 and 5 after use and removal of the clamp considered.
Comme on le voit plus particulièrement sur les Figures 1 à 3, la pince considérée comporte un corps 1, réalisé au moyen d'une pièce métallique 2, pliée sur elle-même ou conformée selon le procédé de fabrication utilisé pour épouser la forme d'un U renversé, avec ses côtés respectivement 3 et 4 parallèles l'un à l'autre et délimitant entre eux une fente ou logement central 5 (voir plus particulièrement la Figure 3).As seen more particularly in Figures 1 to 3, the clamp considered comprises a body 1, produced by means of a metal piece 2, folded on itself or shaped according to the manufacturing process used to follow the shape of an inverted U, with its sides respectively 3 and 4 parallel to each other and delimiting between them a central slot or housing 5 (see more particularly Figure 3).
D'une façon générale, le corps 1 représenté est analogue à celui déjà décrit dans la demande européenne publiée EP-A-0 203 241, avec en particulier une partie en retour vers l'avant 6 formant une matrice 7, laquelle est prévue pour coopérer avec une lame coulissante 8, dont la structure et le montage seront décrits ci-après, cette lame comportant en regard de la matrice 7 une partie active ou outil 9, propre à coopérer avec cette matrice de la façon explicitée plus loin.In general, the body 1 shown is similar to that already described in the published European application EP-A-0 203 241, with in particular a part facing forward 6 forming a matrix 7, which is provided for cooperate with a sliding blade 8, the structure and mounting of which will be described below, this blade comprising, opposite the matrix 7, an active part or tool 9, suitable for cooperating with this matrix as explained below.
L'outil 9 peut faire partie intégrante de la lame coulissante 8, en constituant l'extrémité correspondante de celui-ci (comme illustré sur les Figures de l'exemple considéré), ou bien, en variante, être rapporté et solidarisé de cette lame par tout moyen adéquat.The tool 9 can be an integral part of the sliding blade 8, constituting the corresponding end thereof (as illustrated in the Figures of the example considered), or alternatively, be attached and secured to this blade by any suitable means.
De façon également similaire à celle envisagée dans la demande précitée, la pince comporte l'équivalent du manche fixe et du levier mobile prévus dans cette réalisation antérieure, mais dans une forme de réalisation en elle-même largement différente et qui procure à cette pince une efficacité améliorée.Also similar to that envisaged in the aforementioned application, the clamp comprises the equivalent of the fixed handle and the movable lever provided in this previous embodiment, but in an embodiment in itself largely different and which gives this clamp a improved efficiency.
Dans ce but, le corps 1 comporte une première branche fixe 10 et une seconde branche 11 mobile articulée sur ce corps autour d'un axe 12, les deux branches comportant à leurs extrémités opposées au corps des poignées 13 et 14 permettant à l'utilisateur de tenir la pince solidement mais avec une seule main, de manière à exercer sur la branche mobile 11 un effort de rappel pour la rapprocher de la branche fixe 10, comme l'illustrent respectivement les Figures 1 et 2 où les branches sont, dans un cas écartées, et dans l'autre pratiquement au contact entre elles.For this purpose, the body 1 comprises a first fixed branch 10 and a second movable branch 11 articulated on this body around an axis 12, the two branches having at their ends opposite to the body handles 13 and 14 allowing the user to hold the clamp securely but with one hand, so as to exert on the movable branch 11 a restoring force to bring it closer to the fixed branch 10, as illustrated in Figures 1 and 2 respectively where the branches are, in a cases discarded, and in the other practically in contact with each other.
Chacune des poignées 13 et 14 peut comprendre, de façon en elle-même connue, un élément en saillie latérale 15, formant butée pour les doigts et le pouce de la main qui tient la pince, les deux branches étant appliquées contre la paume. L'une des poignées peut en outre comporter un anneau 16 pour l'accrochage de la pince dans un ratelier ou analogue.Each of the handles 13 and 14 can comprise, in a manner known per se, a lateral projecting element 15, forming a stop for the fingers and the thumb of the hand holding the clamp, the two branches being applied against the palm. One of the handles may further include a ring 16 for hanging the clamp in a rack or the like.
Les deux branches 10 et 11 de la pince sont associées à un ressort de rappel intermédiaire 17, ayant de préférence la forme générale d'une épingle à cheveux dont le sommet est enroulé autour d'un téton d'articulation 18, porté par la branche fixe 10 dans l'exemple représenté, les deux prolongements 19 et 20 du ressort en épingle étant arrêtés et immobilisés respectivement par l'une et l'autre des deux branches à l'aide de tout moyen approprié.The two branches 10 and 11 of the clamp are associated with an intermediate return spring 17, preferably having the general shape of a hair pin whose top is wound around a hinge pin 18, carried by the branch fixed 10 in the example shown, the two extensions 19 and 20 of the pin spring being stopped and immobilized respectively by one and the other of the two branches using any suitable means.
Avantageusement, chacune des branches peut présenter un profil évidé dans sa partie médiane pour constituer une fente où se loge chacun des deux prolongements, de manière à maintenir le ressort et à empêcher tout débattement latéral de celui-ci, sans gêner le rapprochement ou l'écartement mutuel des deux branches. Notamment, les extrémités de ces prolongements peuvent comporter une partie recourbée 21, qui vient s'engager dans un trou d'immobilisation (non représenté) prévu dans chacune des branches.Advantageously, each of the branches may have a hollow profile in its middle part to form a slot where each of the two extensions is housed, so as to maintain the spring and to prevent any lateral movement of the latter, without interfering with the bringing together or the mutual spacing of the two branches. In particular, the ends of these extensions may include a curved portion 21, which engages in a hole immobilization (not shown) provided in each of the branches.
La commande de la pince et en particulier le déplacement de la lame coulissante 8 et de l'outil 9 porté par celle-ci, est réalisée au moyen d'une genouillère désignée dans son ensemble sous la référence 22.The control of the clamp and in particular the movement of the sliding blade 8 and of the tool 9 carried by the latter, is carried out by means of a toggle designated as a whole under the reference 22.
Celle-ci comporte principalement une biellette de commande 23, laquelle est réunie à une patte de transmission 24, elle-même articulée sur la branche mobile 11 autour d'un axe 25 et sur la biellette 23 autour d'un axe parallèle 26.This mainly comprises a control rod 23, which is joined to a transmission lug 24, itself articulated on the movable branch 11 around an axis 25 and on the rod 23 around a parallel axis 26.
La biellette 23 comprend à son extrémité opposée à la lame coulissante 8, une rainure 27 qui s'étend selon la direction longitudinale de la biellette et dans laquelle est engagé un pivot fixe 28, porté par le corps 1, de telle sorte que cette biellette puisse se débattre en rotation par rapport à ce pivot tout en acceptant un léger déplacement relatif vis-à-vis de celui-ci qui décrit la rainure 27, comme on le voit clairement par comparaison des Figures 1 et 2.The link 23 includes at its end opposite the sliding blade 8, a groove 27 which extends in the longitudinal direction of the link and in which is engaged a fixed pivot 28, carried by the body 1, so that this link can be struggled in rotation with respect to this pivot while accepting a slight relative displacement with respect to it which describes the groove 27, as can be clearly seen by comparison with FIGS. 1 and 2.
A son extrémité opposée au pivot fixe 28, la biellette 23 est également articulée autour d'un axe 29 sur la lame coulissante 8, celle-ci comportant une rainure centrale 30, s'étendant selon la direction du déplacement de la lame, cette rainure étant traversée par un doigt de guidage 31, lequel est immobilisé de part et d'autre et vers l'extérieur des côtés latéraux et parallèles 3 et 4 du corps 1 par des écrous de blocage 32 et 33 (Figure 3).At its end opposite to the fixed pivot 28, the link 23 is also articulated around an axis 29 on the sliding blade 8, the latter comprising a central groove 30, extending in the direction of movement of the blade, this groove being traversed by a guide finger 31, which is immobilized on either side and towards the outside of the lateral and parallel sides 3 and 4 of the body 1 by locking nuts 32 and 33 (Figure 3).
Enfin, on prévoit de même, dans chacun des côtés 3 et 4 du corps 1, une boutonnière allongée 34, ces deux boutonnières, identiques l'une à l'autre et parallèles à la rainure centrale 30 de la lame coulissante 8, recevant respectivement les extrémités de l'axe d'articulation 29 entre la biellette 23 et la lame, ces extrémités pouvant à nouveau être avantageusement arrêtées par des écrous 35 et 36 (voir également la Figure 3).Finally, there is also provided, in each of the sides 3 and 4 of the body 1, an elongated buttonhole 34, these two buttonholes, identical to each other and parallel to the central groove 30 of the sliding blade 8, receiving respectively the ends of the hinge pin 29 between the link 23 and the blade, these ends can again be advantageously stopped by nuts 35 and 36 (see also Figure 3).
Sur les dessins et en particulier sur la vue en coupe de cette Figure 3, on observe que la biellette 23 est de préférence constituée de deux parties, respectivement 23a et 23b, formant chape, chevauchant la lame coulissante 8 logée entre elles, de façon à répartir les efforts exercés sur cette dernière par l'intermédiaire de l'axe 29. Bien entendu, les deux parties 23 et 24 peuvent s'étendre sur toute la longueur de la biellette ou bien se réunir en une seule au droit du pivot fixe 28 à son extrémité opposée.In the drawings and in particular in the sectional view of this Figure 3, it can be seen that the link rod 23 is preferably made up of two parts, respectively 23a and 23b, forming a yoke, overlapping the sliding blade 8 housed therebetween, so as to distribute the efforts exerted on the latter by via the axis 29. Of course, the two parts 23 and 24 can extend over the entire length of the link or else meet in one in line with the fixed pivot 28 at its opposite end.
Les Figures 4, 5 et 6 permettent de comprendre le fonctionnement de la pince selon l'invention, notamment pour réaliser un crevé simultané dans un assemblage 37 formé de deux tôles superposées, respectivement 38 et 39, en appui contre la matrice 7 du retour 6 du corps 1, la Figure 4 représentant l'assemblage en question avant que l'outil 9 ne réalise le crevé 40 souhaité, illustré sur la Figure 5 et mieux visible encore sur la Figure 6, une fois la pince dégagée, avec recouvrement mutuel et rabattement vers l'extérieur des bords du perçage obtenu.Figures 4, 5 and 6 make it possible to understand the operation of the clamp according to the invention, in particular for producing a simultaneous puncture in an assembly 37 formed of two superposed sheets, respectively 38 and 39, bearing against the matrix 7 of the return 6 of the body 1, FIG. 4 representing the assembly in question before the tool 9 achieves the desired puncture 40, illustrated in FIG. 5 and still more visible in FIG. 6, once the clamp released, with mutual overlap and outward folding of the edges of the hole obtained.
On réalise ainsi une pince à fonctions multiples de conception simple et qui présente une grande efficacité dans son fonctionnement, pouvant notamment être manoeuvrée d'une seule main, la genouillère 22 constituée de la biellette 23, de la patte 24 et de la lame coulissante 8 permettant de développer sur cette dernière, qui reste toujours parallèle à elle-même grâce aux boutonnières 34 et à la rainure de guidage 30, une poussée importante, même pour une course de débattement de la branche mobile 11 par rapport à la branche fixe 10 relativement limitée.This produces a multi-function pliers of simple design and which has a high efficiency in its operation, which can in particular be operated with one hand, the toggle 22 consisting of the link 23, the tab 24 and the sliding blade 8 allowing to develop on the latter, which always remains parallel to itself through the buttonholes 34 and the guide groove 30, a significant thrust, even for a travel travel of the movable branch 11 relative to the fixed branch 10 relatively limited.
Bien entendu, il va de soi que l'invention ne se limite pas à l'exemple de réalisation plus spécialement décrit ci-dessus en référence aux dessins annexés.Of course, it goes without saying that the invention is not limited to the embodiment more specifically described above with reference to the accompanying drawings.
Notamment, on a plus spécialement prévu dans cet exemple que la première branche 10 était fixe par rapport au corps 1. En fait, on peut envisager qu'elle soit elle-même articulée autour d'un axe 41 porté par le corps, de manière à faciliter son rapprochement avec la seconde branche 11, dont la course doit toutefois rester suffisante pour permettre le débattement approprié de la biellette de commande 23.In particular, it was more especially provided in this example that the first branch 10 was fixed relative to the body 1. In fact, it can be envisaged that it is itself articulated around an axis 41 carried by the body, so to facilitate its approximation with the second branch 11, the stroke of which must however remain sufficient to allow the appropriate movement of the control rod 23.
Claims (8)
- Multifunctional pliers, comprising a body (1) provided with or on which is mounted a first arm (10) having one end with a gripping area or handle (13), and a second arm (11) having also one end, opposite to the body, with a similar gripping area (14), this second arm being movable relatively to the body about a pivot pin (12) carried thereby, and a toggle mechanism (22) able to transform a rotary movement of the second arm into a translation movement for a blade (8) that slides in the body towards an oppositely placed die member (7) that is also carried by the body via a returning part (6), this die member being provided for cooperating with a work tool (9) mounted at that end of the blade (8) which is directed to the die member, characterized in that the two arms (10, 11) of the pliers are sufficiently near one from another so to be grippable together by only one user's hand, the second arm (11) being able to be brought nearer to the first arm following a contraction of the fingers towards the palm, and in that the sliding blade (8) comprises an articulation pin (29) with a control rod (23) rotatively mounted to the body about a fixed pivot member (28) and driven in its movement by means of a return link (24) respectively articulated on the rod, between the pivot member (28) and the articulation pin (29), and on the second arm.
- Pliers according to claim 1, characterized in that it comprises a hair-pin shaped return spring (17), mounted between the two arms (10, 11), so to exert thereon a permanent effort tending to separate the second arm from the first arm.
- Pliers according to claim 2, characterized in that the return spring (17) has a central part that is coiled around a support stud (18) carried by the first arm (10), the ends (19, 20) of the hair-pin being respectively stopped and immobilized by one and the other of the two arms.
- Pliers according to anyone of claims 1 to 3, characterized in that the fixed pivot member (28) about which the control rod (23) rotates, traverses a groove (27) provided along the longitudinal direction of the rod for authorizing a small relative movement thereof with respect to the pivot member, following a displacement of the sliding blade (8), itself connected to the rod about the articulation pin (29).
- Pliers according to anyone of claims 1 to 4, characterized in that the body (1) has a cross-section substantially in the form of an inverted U, the sides (3, 4) of which are parallel to the sliding blade (8) housed therebetween, these sides each comprising a lengthened aperture (34) that is travelled by the articulation pin (29) of the rod (23) on the blade.
- Pliers according to claim 5, characterized in that the sliding blade (8) comprises a central groove (30) in which is engaged a fixed finger (31) that is carried by the body (1) and which extends transversally between its parallel sides (3, 4), in order to provide the guiding of the blade that remains permanently parallel thereto during the displacement thereof caused by movement of the rod (23).
- Pliers according to anyone of claims 1 to 6, characterized in that the first arm (10) is fixed with respect to the body (1).
- Pliers according to anyone of claims 1 to 6, characterized in that the first arm (10) is articulated about a pin (41) carried by the body (1), in order to facilitate its bringing closer to the second arm (11), the stroke of which must however remain sufficient for permitting the suitable move of the control blade (23).
Priority Applications (7)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DK96402671T DK0865880T3 (en) | 1996-12-09 | 1996-12-09 | multifunction Tang |
| DE69607645T DE69607645T2 (en) | 1996-12-09 | 1996-12-09 | Multi-purpose pliers |
| EP96402671A EP0865880B1 (en) | 1996-12-09 | 1996-12-09 | Multifunctional pliers |
| ES96402671T ES2147352T3 (en) | 1996-12-09 | 1996-12-09 | MULTIPLE FUNCTION TONGS. |
| AT96402671T ATE191386T1 (en) | 1996-12-09 | 1996-12-09 | MULTIPURPOSE TONGS |
| PT96402671T PT865880E (en) | 1996-12-09 | 1996-12-09 | PLIERS WITH MULTIPLE FUNCTIONS |
| GR20000401597T GR3033912T3 (en) | 1996-12-09 | 2000-07-05 | Multifunctional pliers |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP96402671A EP0865880B1 (en) | 1996-12-09 | 1996-12-09 | Multifunctional pliers |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0865880A1 EP0865880A1 (en) | 1998-09-23 |
| EP0865880B1 true EP0865880B1 (en) | 2000-04-05 |
Family
ID=8225337
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP96402671A Expired - Lifetime EP0865880B1 (en) | 1996-12-09 | 1996-12-09 | Multifunctional pliers |
Country Status (7)
| Country | Link |
|---|---|
| EP (1) | EP0865880B1 (en) |
| AT (1) | ATE191386T1 (en) |
| DE (1) | DE69607645T2 (en) |
| DK (1) | DK0865880T3 (en) |
| ES (1) | ES2147352T3 (en) |
| GR (1) | GR3033912T3 (en) |
| PT (1) | PT865880E (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006010102A (en) * | 2004-06-22 | 2006-01-12 | Sanden Corp | Stacked heat exchanger and its manufacturing method |
| DE102006006992B3 (en) * | 2006-02-15 | 2007-05-31 | Karl Jung Gmbh | Nipper for sheet metal processing in dry construction, has toggle lever arrangement which comprises connecting lever for direct transmission of the pivoting of moving arm on punch |
| FR2969950B1 (en) * | 2010-12-29 | 2013-01-18 | Pierre Grehal Et Cie S A Ets | CRIMPING TOOL |
| FR3012056B1 (en) * | 2013-10-21 | 2016-03-18 | Grehal Pierre Ets Cie Sa | PUSH-PUSH MECHANISM FOR HAND TOOL, CRIMPING CLIPPER PROVIDED WITH SUCH A MECHANISM AND CRIMPING METHOD |
| US10702976B2 (en) | 2018-06-06 | 2020-07-07 | GCX Corporation | Pole clamp |
| CN109351850B (en) * | 2018-11-21 | 2019-06-07 | 广州图固建筑科技有限公司 | The Convenient drilling device of U-type groove steel |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3354759A (en) * | 1966-05-03 | 1967-11-28 | Thomas L Cook | Vise grip pliers |
| SE429621B (en) * | 1982-08-26 | 1983-09-19 | Weidmueller C A Gmbh Co | PLASTIC TOOL WITH RIGHTLY LOVELY WORKING SHIFT |
| EP0203241A1 (en) | 1985-05-21 | 1986-12-03 | Etablissements Pierre Grehal Et Compagnie | Multi-purpose pliers and their use in fastening, crimping, punching and similar operations |
| DE4101284A1 (en) * | 1991-01-17 | 1992-07-23 | Weidmueller C A Gmbh Co | Crimping tool with toggle mechanism for applying force - moves insert in guides by bowed arm lever coupled to manuaully operated lever |
| DE4129685A1 (en) * | 1991-09-07 | 1993-03-11 | Wolfgang B Thoerner | Manually operated tool for crimping connectors onto wires - has pair of hinged handgrips operating 3-link transmission to apply high force with accurate displacement of tool |
-
1996
- 1996-12-09 PT PT96402671T patent/PT865880E/en unknown
- 1996-12-09 EP EP96402671A patent/EP0865880B1/en not_active Expired - Lifetime
- 1996-12-09 AT AT96402671T patent/ATE191386T1/en active
- 1996-12-09 ES ES96402671T patent/ES2147352T3/en not_active Expired - Lifetime
- 1996-12-09 DK DK96402671T patent/DK0865880T3/en active
- 1996-12-09 DE DE69607645T patent/DE69607645T2/en not_active Expired - Lifetime
-
2000
- 2000-07-05 GR GR20000401597T patent/GR3033912T3/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| DE69607645T2 (en) | 2000-11-23 |
| DK0865880T3 (en) | 2000-09-11 |
| EP0865880A1 (en) | 1998-09-23 |
| GR3033912T3 (en) | 2000-11-30 |
| ATE191386T1 (en) | 2000-04-15 |
| DE69607645D1 (en) | 2000-05-11 |
| PT865880E (en) | 2000-09-29 |
| ES2147352T3 (en) | 2000-09-01 |
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