EP1894676A2 - Spring collet with backstop system - Google Patents

Spring collet with backstop system Download PDF

Info

Publication number
EP1894676A2
EP1894676A2 EP07113927A EP07113927A EP1894676A2 EP 1894676 A2 EP1894676 A2 EP 1894676A2 EP 07113927 A EP07113927 A EP 07113927A EP 07113927 A EP07113927 A EP 07113927A EP 1894676 A2 EP1894676 A2 EP 1894676A2
Authority
EP
European Patent Office
Prior art keywords
clamp
rotating part
axis
connecting rod
jaws
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.)
Granted
Application number
EP07113927A
Other languages
German (de)
French (fr)
Other versions
EP1894676B1 (en
EP1894676A3 (en
Inventor
Gaël Lachaize
Cyriaque Fouqueray
Nicolas Thierry
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Caillau SAS
Original Assignee
Etablissements Caillau SAS
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 Etablissements Caillau SAS filed Critical Etablissements Caillau SAS
Priority to PL07113927T priority Critical patent/PL1894676T3/en
Publication of EP1894676A2 publication Critical patent/EP1894676A2/en
Publication of EP1894676A3 publication Critical patent/EP1894676A3/en
Application granted granted Critical
Publication of EP1894676B1 publication Critical patent/EP1894676B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

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
    • B25B7/12—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
    • 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
    • B25B25/00—Implements for fastening, connecting or tensioning of wire or strip
    • B25B25/005—Implements for fastening, connecting or tensioning of wire or strip for applying wire clasps to hose couplings
    • 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
    • B25B7/14—Locking means
    • B25B7/16—Locking means combined with means for tightening the operating arms of jaws
    • 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
    • B25B7/18—Adjusting means for the operating arms

Definitions

  • the invention relates to a clamp. More particularly, the invention relates to a clamp of the type comprising jaws and first and second actuating arms mounted to pivot relative to one another about a first axis, the spacing and the approximation of these arms. actuation causing the opening and closing of the jaws.
  • Such a clamp can be used, in particular, for clamping clamps and, more particularly, clamps formed of an elastic band wound on itself and having two end portions respectively provided with a hook and a radial projection called ear.
  • the clamp is used to tighten the collar, that is to say bring the hook of the ear until the hook passes over the ear and hangs on it, so as to lock the collar in its tight position.
  • the collar is first correctly positioned at rest (i.e. loosened) around the object to be clamped (for example a pipe).
  • the jaws of the clip are then engaged with the ear and hook of the collar and the jaws are closed so as to tighten and lock the collar around the object.
  • the invention aims to avoid the aforementioned problem, ensuring each use of the clamp, clamping and locking the collar.
  • the invention relates to a clamp of the aforementioned type, characterized in that it comprises: a rotatable part rotatably mounted on the first actuating arm, about a second axis substantially parallel to the first axis, this rotating part performing a complete revolution in a cycle opening / closing / reopening of the jaws; a non-return system allowing only a one-way rotation of the rotating part; and a connecting rod providing a connection between the rotating part and the second actuating arm.
  • the combination of the rotating part, the anti-return system, and the connecting rod forces the operator to close the jaws of the clamp to the maximum before being able to reopen them. It is then arranged that the maximum closing position corresponds to the locking position of the collar to be clamped.
  • Said rotating part is free to rotate 360 ° about the second axis, which allows it to perform a complete revolution in a cycle opening / closing / reopening of the jaws.
  • Such a rotating part does not exist-in the clamp of US 2,737,070 , and the invention therefore constitutes an alternative to the forceps of US 2,737,070 .
  • the clamp of the invention is such that it comprises spacing means for changing the length of the connection provided by the connecting rod, between the rotating part and the second actuating arm.
  • the clamp of the invention comprises separation means for breaking the connection provided by the connecting rod, between the rotating part (integral with the first actuating arm) and the second arm of actuation.
  • the separation means can be used to break the connection between the connecting rod and the second actuating arm.
  • the connecting rod comprises first and second parts connected together and articulated respectively on the rotating part and on the second actuating arm, the separating means for breaking the connection between these first and second parts.
  • Another solution to avoid having to completely close the jaws of the clamp and be able to reopen them in order to reposition or change the collar to be clamped consists, if the spacing means mentioned above allow, to increase the length of the connecting the rotating part and the second actuating arm and thus the spacing between the actuating arms, until the opening of the jaws of the clamp is sufficient to disengage the collar.
  • This clamp 10 comprises first and second hinge arms 11 and 12 mounted to pivot relative to each other around a first axis A1.
  • the clamp 10 further comprises two support arms 21 and 22 extending respectively in extension of the hinge arms 11 and 12.
  • Each of the support arms carries a jaw 14.
  • the jaws 14 can be removable or fixed permanently on the support arms.
  • the support arm 21 is pivotally mounted on the actuating arm 11 about an axis A3 parallel to the first axis A1.
  • the axis A3 is located relative to the axis A1 on the opposite side to that of the jaws 14 of the clamp.
  • the arm 21 is mounted on the arm 11 by riveting.
  • the support arm 22 is pivotally mounted on the second actuating arm 12 about an axis A4.
  • a roller 16 (see Figures 2 to 5) is mounted at the end 11A, 12A of each actuating arm 11, 12. These are the ends of the actuating arms 11, 12 relative to each other. at the first axis A1, on the side of the jaws 14.
  • the two rollers 16 are respectively mounted on two axes A5 and A6 parallel to the first axis A1.
  • each support arm 21 (22) is provided with an oblong opening 18 in the form of a bean (see FIGS. 2 to 5) inside which rolls the roller 16 mounted on the other support arm 22 (21).
  • Figures 3 to 5 show the position of a roller 16 in the opening 18 during the various steps of closing and opening the clamp.
  • the bead-shaped roller 16 and opening system 18 makes it possible to exert appropriate forces depending on the tightening state of the collar while keeping the possibility of opening the jaws of the clamp as much as possible. In addition, this system reduces the approaching distance of the actuating arms required to clamp the collar, so that the ergonomics of the clamp is improved.
  • the clamp comprises a rotating part rotatably mounted on the first actuating arm 11, around a second axis A2 parallel to the first axis A1.
  • the axis A2 is located relative to the first axis A1 on the opposite side to the jaws 14.
  • the rotating part can rotate 360 ° about the axis A2, that is to say perform a complete revolution around this axis A2 .
  • an axle member 31 is carried by the first actuating arm 11. Between the axle member 31 and the rotating member 30, there is a non-return system 32 allowing only a unidirectional rotation of the rotating part 30.
  • the anti-return system 32 is a freewheeling hub.
  • other types of non-return system could be used and, in particular, a ratchet system with ratchet and gear wheel or a gear system with asymmetrical teeth.
  • the non-return system acts between the first actuating arm 11 and the rotating part 30.
  • a part of the anti-return system is integral with the actuating arm 11 and the other part of the system is integral with the rotating part 30.
  • the rotating part 30 is substantially ovoidal in shape and has an oblong opening 34 in a part remote from the axis A2. This opening 34 is oriented so that the zone of the opening furthest from the axis A2 is located upstream of the zone of the opening the less distant from this axis, according to the direction of rotation of the part 30 (represented by the arrow F).
  • the clamp also comprises a connecting rod 36 whose first end is articulated on the rotating part 30 and whose second end is articulated on the second actuating arm 12. More specifically, the first end of the connecting rod 36 has a finger 38 adapted to engage in the oblong opening 34 of the part 30, so as to be able to rotate in this opening 34 and be able to move in the longitudinal direction thereof.
  • the second end of the connecting rod is mounted on an axle member 47 carried by the first actuating arm 11.
  • the connecting rod 36 is thus rotatably mounted on the arm 11 about an axis A7 parallel to the first axis A1.
  • the connecting rod 36 comprises first and second parts 40 and 42 (see FIGS. 6 and 7) linked together and hinged respectively to the rotary part 30 and to the second actuating arm 12.
  • the first part 40 has a recess 44 provided with a internal thread.
  • the second part 42 is traversed from one side along the longitudinal axis X of the connecting rod, through a hole 46.
  • the parts 40 and 42 are interconnected by means of a screw 48, whose rod passes through the hole 46 and is screwed inside the recess 44.
  • the head of the screw 48 is of larger section than that of the hole 46, so as not to be able to pass therethrough.
  • the rod 36 further comprises a spacer 50 between its first and second parts 40, 42. This spacer 50 is also perforated so that the rod of the screw 48 can pass therethrough.
  • the connecting rod 50 is mounted by first positioning the spacer 50 between the parts 40 and 42, then screwing the screw 48 into the recess 44. Then, the rod 50 is mounted on the second arm actuating 12 by means of the axle piece 47 which crosses transversely (ie perpendicular to the X axis) the second portion 42 of the connecting rod and the second actuating arm 12.
  • the screw 48 penetrates more or less deeply inside the recess 44.
  • the length of the spacer 50 therefore determines the length of the rod 36 and therefore the length of the link provided by the connecting rod between the rotating part 30 and the second actuating arm 12.
  • the spacer 50 forms spacing means within the meaning of the invention.
  • the direction of rotation of the rotating part 30 authorized by the non-return system 32 is indicated by the arrows F.
  • the shaft member 47 is replaced by a pin. This pin serves as separation means for breaking the connection between the rod 36 and the second actuating arm 12.
  • FIGS. 8 and 9 represent the clamp 110 without its first actuating arm 111. This makes it possible to better visualize the rotary part 130 and the connecting rod 136.
  • the clamp 110 differs from the clamp 10 of FIGS. to 7 only from the point of view of the structure of the connecting rod 136.
  • the connecting rod 136 comprises a first portion 140 connected at one end to the rotating piece 130, via a finger 138.
  • This sleeve 152 has on its lateral surface two slots 154 located on each side of the sleeve 152, which face each other and which are oriented along the longitudinal axis X of the rod.
  • the rod 136 also comprises a second portion or rod 142 hinged to the second hinge arm 112.
  • This rod 142 comprises at one of its ends a threaded portion 142A.
  • This threaded portion 142A passes through an axle member 157 rotatably mounted on the second arm 112, about the axis A7.
  • the threaded portion 142A can slide in a hole through the axis member 157, in the longitudinal direction X of the connecting rod.
  • the position of the rod 142 relative to the axis member 157 can be adjusted by means of two nuts 159 placed on the threaded portion 154, on either side of the axis member 157. This allows the modify the length of the connection provided by the connecting rod 136 between the rotary part 130 and the actuating arm 112.
  • the nuts 159 and the threaded portion 142A thus form first spacing means within the meaning of the invention. These first spacing means are used to adjust the maximum opening of the jaws 114 of the clamp.
  • the end portion of the rod 142 located opposite the axis member 157, is passed inside the sleeve 152 and traversed transversely (ie perpendicular to the X axis) by a rod 161 which also passes through the slots 154 of the sleeve 152.
  • This rod 161 carries at one end a push button 160 and at its other end a locking head 162.
  • the locking head 162 is held against a shoulder 164 formed on the surface of the sleeve 152 and the push button 160 is in its extended position.
  • a spring or other elastic means may be provided between the rod 142 and the push button 160 to maintain the latter in its outward position.
  • the locking head 162 disengages from the shoulder 164 and the rod 161 can then slide along the arrow G in the slots 154, so that a portion of the rod 142 leaves the sleeve 152
  • the rod 161 and the sleeve 152 thus form second spacing means within the meaning of the invention.
  • These second spacing means unlike the first, are not used to adjust the maximum opening of the jaws of the clamp but to reopen the jaws during their closure, in the case of a bad positioning of the clamp to tighten or an error on the type or size of the collar.

Landscapes

  • Mechanical Engineering (AREA)
  • Engineering & Computer Science (AREA)
  • Clamps And Clips (AREA)
  • Manipulator (AREA)
  • Pressure Welding/Diffusion-Bonding (AREA)
  • Bidet-Like Cleaning Device And Other Flush Toilet Accessories (AREA)
  • Air Bags (AREA)
  • Load-Engaging Elements For Cranes (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
  • Automobile Manufacture Line, Endless Track Vehicle, Trailer (AREA)
  • Chain Conveyers (AREA)
  • Paper (AREA)
  • Installation Of Indoor Wiring (AREA)
  • Flanged Joints, Insulating Joints, And Other Joints (AREA)

Abstract

The collet has activation arms (11, 12) pivotally mounted with respect to one another around an axis (A1). Spacing and connection of the arms drives opening and closing of jaws (14). An ovoid shaped rotating part (30) is rotatingly mounted on one arm around another axis (A2). The part performs a full rotation in an opening/closing/reopening cycle of the jaws. A non-return system (32) e.g. free wheel hub, authorizing a unidirectional rotation of the part, and a rod (36) ensures connection between the part and another arm. A spacer modifies length of the connection ensured by the rod.

Description

L'invention concerne une pince. Plus particulièrement, l'invention concerne une pince du type comprenant des mâchoires et des premier et deuxième bras d'actionnement montés pivotant l'un par rapport à l'autre autour d'un premier axe, l'écartement et le rapprochement de ces bras d'actionnement entraînant l'ouverture et la fermeture des mâchoires.The invention relates to a clamp. More particularly, the invention relates to a clamp of the type comprising jaws and first and second actuating arms mounted to pivot relative to one another about a first axis, the spacing and the approximation of these arms. actuation causing the opening and closing of the jaws.

Une telle pince peut être utilisée, notamment, pour serrer des colliers de serrage et, plus particulièrement, des colliers formés d'une bande élastique enroulée sur elle-même et présentant deux portions d'extrémité respectivement munies d'un crochet et d'une saillie radiale appelée oreille. La pince est utilisée pour réaliser le serrage du collier, c'est-à-dire rapprocher le crochet de l'oreille jusqu'à ce que le crochet passe au-dessus de l'oreille et vienne s'accrocher sur celle-ci, de manière à verrouiller le collier dans sa position serrée.Such a clamp can be used, in particular, for clamping clamps and, more particularly, clamps formed of an elastic band wound on itself and having two end portions respectively provided with a hook and a radial projection called ear. The clamp is used to tighten the collar, that is to say bring the hook of the ear until the hook passes over the ear and hangs on it, so as to lock the collar in its tight position.

Pour poser un tel collier, d'abord on positionne correctement le collier au repos (i.e. desserré) autour de l'objet à serrer (par exemple un tuyau). Puis on engage les mâchoires de la pince avec l'oreille et le crochet du collier et on ferme les mâchoires de manière à serrer et à verrouiller le collier autour de l'objet.To install such a collar, the collar is first correctly positioned at rest (i.e. loosened) around the object to be clamped (for example a pipe). The jaws of the clip are then engaged with the ear and hook of the collar and the jaws are closed so as to tighten and lock the collar around the object.

Si on manipule mal la pince lors d'une telle opération, il arrive qu'on ne ferme pas suffisamment les mâchoires, auquel cas le collier est serré mais pas verrouillé. Si on ne remarque pas ceci, le collier va pouvoir se desserrer, ce qui, en fonction des applications, peut avoir des conséquences plus ou moins graves.If the clamp is mishandled during such an operation, it may happen that the jaws are not closed enough, in which case the collar is tightened but not locked. If we do not notice this, the collar will be able to loosen, which, depending on the applications, can have more or less serious consequences.

L'invention a pour but d'éviter le problème précité, en assurant à chaque utilisation de la pince, le serrage et le verrouillage du collier.The invention aims to avoid the aforementioned problem, ensuring each use of the clamp, clamping and locking the collar.

Dans un autre domaine technique que celui des colliers de serrage, à savoir le domaine des connecteurs électriques, on connaît la pince décrite dans le document US 2,737,070 .In another technical field than that of clamps, namely the field of electrical connectors, the clamp described in the document is known. US 2,737,070 .

L'invention a pour objet une pince du type précité, caractérisée en ce qu'elle comprend : une pièce rotative montée rotativement sur le premier bras d'actionnement, autour d'un deuxième axe sensiblement parallèle au premier axe, cette pièce rotative effectuant un tour complet en un cycle ouverture/fermeture/réouverture des mâchoires ; un système anti-retour n'autorisant qu'une rotation unidirectionnelle de la pièce rotative; et une bielle assurant une liaison entre la pièce rotative et le deuxième bras d'actionnement.The invention relates to a clamp of the aforementioned type, characterized in that it comprises: a rotatable part rotatably mounted on the first actuating arm, about a second axis substantially parallel to the first axis, this rotating part performing a complete revolution in a cycle opening / closing / reopening of the jaws; a non-return system allowing only a one-way rotation of the rotating part; and a connecting rod providing a connection between the rotating part and the second actuating arm.

La cinématique d'une telle pince sera décrite en détail ci-après.The kinematics of such a clip will be described in detail below.

De manière générale, l'association de la pièce rotative, du système anti-retour, et de la bielle, oblige l'opérateur à fermer les mâchoires de la pince au maximum avant de pouvoir les rouvrir. On s'arrange alors pour que la position de fermeture maximum corresponde à la position de verrouillage du collier à serrer.In general, the combination of the rotating part, the anti-return system, and the connecting rod, forces the operator to close the jaws of the clamp to the maximum before being able to reopen them. It is then arranged that the maximum closing position corresponds to the locking position of the collar to be clamped.

Ladite pièce rotative est libre de tourner à 360° autour du deuxième axe, ce qui lui permet d'effectuer un tour complet en un cycle ouverture/fermeture/réouverture des mâchoires. Une telle pièce rotative n'existe pas-dans la pince de US 2,737,070 , et l'invention constitue donc une alternative à la pince de US 2,737,070 .Said rotating part is free to rotate 360 ° about the second axis, which allows it to perform a complete revolution in a cycle opening / closing / reopening of the jaws. Such a rotating part does not exist-in the clamp of US 2,737,070 , and the invention therefore constitutes an alternative to the forceps of US 2,737,070 .

Selon un mode de réalisation, la pince de l'invention est telle qu'elle comprend des moyens d'écartement pour modifier la longueur de la liaison assurée par la bielle, entre la pièce rotative et le deuxième bras d'actionnement.According to one embodiment, the clamp of the invention is such that it comprises spacing means for changing the length of the connection provided by the connecting rod, between the rotating part and the second actuating arm.

Ceci permet de serrer différents types et différentes tailles de colliers de serrage. En effet, en fonction du type ou de la taille du collier à serrer, les mâchoires de la pince doivent être plus ou moins écartées dans leur position d'ouverture maximum afin de venir en prise contre l'oreille et le crochet du collier, lorsque celui-ci est au repos (i.e. desserré). Grâce aux moyens d'écartements précités, il est possible de faire varier la longueur de la liaison entre la pièce rotative et le deuxième bras d'actionnement, donc l'écartement des bras d'actionnement, et donc la position d'ouverture maximum des mâchoires.This makes it possible to clamp different types and sizes of clamps. Indeed, depending on the type or size of the collar to be clamped, the jaws of the clamp must be more or less spaced in their maximum open position to engage against the ear and the hook of the collar, when this one is at rest (ie loose). With the aforementioned spacing means, it is possible to vary the length of the connection between the rotating part and the second actuating arm, thus the spacing of the actuating arms, and therefore the maximum opening position of the jaws.

Par ailleurs, il arrive parfois que l'on se rende compte seulement après avoir commencé à serrer le collier, que celui-ci est mal positionné, ou que le type ou la taille de ce collier ne sont pas les bons. Dans ces cas de figure, il est souhaitable de pouvoir rouvrir les mâchoires de la pince pour repositionner le collier ou changer celui-ci plutôt que de devoir impérativement poursuivre le serrage du collier en fermant lesdites mâchoires. En effet, le serrage d'un collier mal positionné ou d'un collier d'un mauvais type ou trop petit, peut endommager l'objet à serrer.On the other hand, sometimes we realize only after we start tightening the collar, that it is not positioned correctly, or that the type or the size of this necklace are not the right ones. In these cases, it is desirable to be able to reopen the jaws of the clamp to reposition the collar or change it rather than having to continue tightening the collar by closing said jaws. Indeed, the tightening of a badly positioned collar or a collar of a bad type or too small, can damage the object to be tightened.

Dans cet optique, selon un mode de réalisation avantageux, la pince de l'invention comprend des moyens de séparation pour rompre la liaison assurée par la bielle, entre la pièce rotative (solidaire du premier bras d'actionnement) et le deuxième bras d'actionnement. Ainsi, dans les cas précités, il est possible d'utiliser les moyens de séparation pour pouvoir écarter les bras d'actionnement et ainsi rouvrir les mâchoires de la pince afin de repositionner ou changer le collier.In this view, according to an advantageous embodiment, the clamp of the invention comprises separation means for breaking the connection provided by the connecting rod, between the rotating part (integral with the first actuating arm) and the second arm of actuation. Thus, in the In the aforementioned cases, it is possible to use the separation means to be able to move the actuating arms and thus reopen the jaws of the clamp in order to reposition or change the collar.

Selon un mode de réalisation, les moyens de séparation peuvent permettre de rompre la liaison entre la bielle et le deuxième bras d'actionnement.According to one embodiment, the separation means can be used to break the connection between the connecting rod and the second actuating arm.

Selon un autre mode de réalisation, la bielle comprend des première et deuxième parties liées ensemble et articulées respectivement sur la pièce rotative et sur le deuxième bras d'actionnement, les moyens de séparation permettant de rompre la liaison entre ces première et deuxième parties.According to another embodiment, the connecting rod comprises first and second parts connected together and articulated respectively on the rotating part and on the second actuating arm, the separating means for breaking the connection between these first and second parts.

Une autre solution pour éviter d'avoir à fermer complètement les mâchoires de la pince et pouvoir rouvrir celles-ci afin de repositionner ou changer le collier à serrer, consiste, si les moyens d'écartement précités le permettent, à augmenter la longueur de la liaison entre la pièce rotative et le deuxième bras d'actionnement et donc l'écartement entre les bras d'actionnement, jusqu'à ce que l'ouverture des mâchoires de la pince soit suffisante pour dégager le collier.Another solution to avoid having to completely close the jaws of the clamp and be able to reopen them in order to reposition or change the collar to be clamped, consists, if the spacing means mentioned above allow, to increase the length of the connecting the rotating part and the second actuating arm and thus the spacing between the actuating arms, until the opening of the jaws of the clamp is sufficient to disengage the collar.

L'invention et ses avantages seront mieux compris à la lecture de la description détaillée qui suit d'exemples de réalisation de l'invention. Cette description fait référence aux figures annexées sur lesquelles :

  • la figure 1 est une vue en perspective d'un premier exemple de pince selon l'invention ;
  • la figure 2 est une vue de côté du premier exemple de pince, dans sa position d'ouverture maximum ;
  • la figure 3 est une vue de côté du premier exemple de pince, en cours de fermeture ;
  • la figure 4 est une vue de côté du premier exemple de pince, dans sa position de fermeture maximum ;
  • la figure 5 est une vue de côté du premier exemple de pince en cours de réouverture ;
  • les figures 6 et 7 sont des vues normale et éclatée de l'assemblage comprenant la pièce rotative, le système anti-retour, et la bielle du premier exemple de pince ;
  • la figure 8 est une vue en perspective, partielle, d'un deuxième exemple de pince selon l'invention ; et
  • la figure 9 est une vue en perspective, partielle, suivant la flèche IX du deuxième exemple de pince.
The invention and its advantages will be better understood on reading the following detailed description of embodiments of the invention. This description refers to the appended figures in which:
  • Figure 1 is a perspective view of a first example of clamp according to the invention;
  • Figure 2 is a side view of the first example of clamp in its maximum open position;
  • Figure 3 is a side view of the first example of clamp, being closed;
  • Figure 4 is a side view of the first example of clamp in its maximum closed position;
  • Figure 5 is a side view of the first example of clamp being reopened;
  • Figures 6 and 7 are normal and exploded views of the assembly comprising the rotating part, the non-return system, and the connecting rod of the first example of clamp;
  • Figure 8 is a partial perspective view of a second example of a clamp according to the invention; and
  • Figure 9 is a partial perspective view along the arrow IX of the second example of clamp.

En référence à la figure 1, on va décrire un premier exemple de pince selon l'invention.With reference to FIG. 1, a first example of a gripper according to the invention will be described.

Cette pince 10 comprend des premier et deuxième bras d'articulation 11 et 12 montés pivotant l'un par rapport à l'autre, autour d'un premier axe A1. La pince 10 comprend, en outre, deux bras de support 21 et 22 s'étendant respectivement en prolongement des bras d'articulation 11 et 12. Chacun des bras de support porte une mâchoire 14. Les mâchoires 14 peuvent être amovibles ou fixées définitivement sur les bras de support.This clamp 10 comprises first and second hinge arms 11 and 12 mounted to pivot relative to each other around a first axis A1. The clamp 10 further comprises two support arms 21 and 22 extending respectively in extension of the hinge arms 11 and 12. Each of the support arms carries a jaw 14. The jaws 14 can be removable or fixed permanently on the support arms.

Le bras de support 21 est monté pivotant sur le bras d'actionnement 11 autour d'un axe A3 parallèle au premier axe A1. L'axe A3 est situé par rapport à l'axe A1 du côté opposé à celui des mâchoires 14 de la pince. Dans l'exemple, le bras 21 est monté sur le bras 11 par rivetage. De la même manière, le bras de support 22 est monté pivotant sur le deuxième bras d'actionnement 12, autour d'un axe A4.The support arm 21 is pivotally mounted on the actuating arm 11 about an axis A3 parallel to the first axis A1. The axis A3 is located relative to the axis A1 on the opposite side to that of the jaws 14 of the clamp. In the example, the arm 21 is mounted on the arm 11 by riveting. In the same way, the support arm 22 is pivotally mounted on the second actuating arm 12 about an axis A4.

De plus, un galet 16 (voir figures 2 à 5) est monté à l'extrémité 11A, 12A de chaque bras d'actionnement 11, 12. Il s'agit ici des extrémités des bras d'actionnement 11, 12 situées par rapport au premier axe A1, du côté des mâchoires 14. Les deux galets 16 sont respectivement montés sur deux axes A5 et A6 parallèles au premier axe A1.In addition, a roller 16 (see Figures 2 to 5) is mounted at the end 11A, 12A of each actuating arm 11, 12. These are the ends of the actuating arms 11, 12 relative to each other. at the first axis A1, on the side of the jaws 14. The two rollers 16 are respectively mounted on two axes A5 and A6 parallel to the first axis A1.

Par ailleurs, chaque bras de support 21 (22) est pourvu d'une ouverture oblongue 18 en forme d'haricot (voir figures 2 à 5) à l'intérieur de laquelle roule le galet 16 monté sur l'autre bras de support 22 (21). Les figures 3 à 5 montrent la position d'un galet 16 dans l'ouverture 18 au cours des différentes étapes de fermeture et d'ouverture de la pince.Moreover, each support arm 21 (22) is provided with an oblong opening 18 in the form of a bean (see FIGS. 2 to 5) inside which rolls the roller 16 mounted on the other support arm 22 (21). Figures 3 to 5 show the position of a roller 16 in the opening 18 during the various steps of closing and opening the clamp.

Lorsque la pince est entièrement ouverte, le galet 16 est dans la position représentée sur la figure 2. Lors de la fermeture de la pince, il se déplace jusque dans la position représentée sur la figure 4. Le trajet du galet entre les figures 2 et 3 est une course d'approche. Grâce à la forme oblongue en haricot de l'ouverture 18, un faible rapprochement des bras d'actionnement 11 et 12 entraîne un rapprochement important des mâchoires 14. Lorsqu'un collier de serrage est placé entre les mâchoires 14, lors de cette étape, on commence à rapprocher l'oreille et le crochet du collier. Les efforts exercés sur le collier restent modérés.When the clamp is fully open, the roller 16 is in the position shown in Figure 2. When closing the clamp, it moves into the position shown in Figure 4. The path of the roller between Figures 2 and 3 is an approach run. Thanks to the oblong bean form of the opening 18, a slight approximation of the actuating arms 11 and 12 causes the jaws 14 to move significantly closer together. jaws 14, during this step, we begin to bring the ear and the hook of the necklace. The forces exerted on the collar remain moderate.

Le trajet du galet entre les figures 3 et 4 correspond à la fin de serrage et au verrouillage du collier. Grâce à la forme de l'ouverture 18, un faible rapprochement des bras d'actionnement 11 et 12 entraîne un faible rapprochement des mâchoires 14. Les efforts exercés sur le collier sont alors importants, de manière à pouvoir verrouiller celui-ci.The path of the roller between Figures 3 and 4 corresponds to the end of clamping and locking the collar. Due to the shape of the opening 18, a low approximation of the actuating arms 11 and 12 causes a low approximation of the jaws 14. The forces exerted on the collar are then important, so as to lock it.

Le système de galet 16 et d'ouverture 18 en forme d'haricot permet d'exercer des efforts adaptés en fonction de l'état de serrage du collier tout en gardant la possibilité d'ouvrir au maximum les mâchoires de la pince. En outre, ce système permet de diminuer la distance de rapprochement des bras d'actionnement nécessaire au serrage du collier, de sorte que l'ergonomie de la pince est améliorée.The bead-shaped roller 16 and opening system 18 makes it possible to exert appropriate forces depending on the tightening state of the collar while keeping the possibility of opening the jaws of the clamp as much as possible. In addition, this system reduces the approaching distance of the actuating arms required to clamp the collar, so that the ergonomics of the clamp is improved.

Selon l'invention, la pince comprend une pièce rotative montée rotativement sur le premier bras d'actionnement 11, autour d'un deuxième axe A2 parallèle au premier axe A1. L'axe A2 est situé par rapport au premier axe A1 du côté opposé aux mâchoires 14. La pièce rotative peut tourner à 360° autour de l'axe A2, c'est-à-dire effectuer un tour complet autour de cet axe A2.According to the invention, the clamp comprises a rotating part rotatably mounted on the first actuating arm 11, around a second axis A2 parallel to the first axis A1. The axis A2 is located relative to the first axis A1 on the opposite side to the jaws 14. The rotating part can rotate 360 ° about the axis A2, that is to say perform a complete revolution around this axis A2 .

Plus précisément, une pièce d'axe 31 est portée par le premier bras d'actionnement 11. Entre la pièce d'axe 31 et la pièce rotative 30, est disposé un système anti-retour 32 n'autorisant qu'une rotation unidirectionnelle de la pièce rotative 30. Dans l'exemple, le système anti-retour 32 est un moyeu à roue libre. Cependant, d'autres types de système anti-retour pourraient être utilisés et, notamment, un système d'encliquetage avec cliquet et roue à denture ou un système d'engrenage à dents dissymétriques. En général, le système anti-retour agit entre le premier bras d'actionnement 11 et la pièce rotative 30. En d'autres termes, une partie du système anti-retour est solidaire du bras d'actionnement 11 et l'autre partie du système est solidaire de la pièce rotative 30.More specifically, an axle member 31 is carried by the first actuating arm 11. Between the axle member 31 and the rotating member 30, there is a non-return system 32 allowing only a unidirectional rotation of the rotating part 30. In the example, the anti-return system 32 is a freewheeling hub. However, other types of non-return system could be used and, in particular, a ratchet system with ratchet and gear wheel or a gear system with asymmetrical teeth. In general, the non-return system acts between the first actuating arm 11 and the rotating part 30. In other words, a part of the anti-return system is integral with the actuating arm 11 and the other part of the system is integral with the rotating part 30.

La pièce rotative 30 est de forme sensiblement ovoïdale et présente dans une partie éloignée de l'axe A2 une ouverture oblongue 34. Cette ouverture 34 est orientée de telle sorte que la zone de l'ouverture la plus éloignée de l'axe A2 se situe en amont de la zone de l'ouverture la moins éloignée de cet axe, suivant le sens de rotation de la pièce 30 (représenté par la flèche F).The rotating part 30 is substantially ovoidal in shape and has an oblong opening 34 in a part remote from the axis A2. This opening 34 is oriented so that the zone of the opening furthest from the axis A2 is located upstream of the zone of the opening the less distant from this axis, according to the direction of rotation of the part 30 (represented by the arrow F).

La pince comprend également une bielle 36 dont la première extrémité est articulée sur la pièce rotative 30 et dont la deuxième extrémité est articulée sur le deuxième bras d'actionnement 12. Plus précisément, la première extrémité de la bielle 36 présente un doigt 38 apte à s'engager dans l'ouverture oblongue 34 de la pièce 30, de manière à pouvoir tourner dans cette ouverture 34 et pouvoir se déplacer suivant la direction longitudinale de celle-ci. La deuxième extrémité de la bielle est montée sur une pièce d'axe 47 portée par le premier bras d'actionnement 11. La bielle 36 est ainsi montée rotativement sur le bras 11 autour d'un axe A7 parallèle au premier axe A1.The clamp also comprises a connecting rod 36 whose first end is articulated on the rotating part 30 and whose second end is articulated on the second actuating arm 12. More specifically, the first end of the connecting rod 36 has a finger 38 adapted to engage in the oblong opening 34 of the part 30, so as to be able to rotate in this opening 34 and be able to move in the longitudinal direction thereof. The second end of the connecting rod is mounted on an axle member 47 carried by the first actuating arm 11. The connecting rod 36 is thus rotatably mounted on the arm 11 about an axis A7 parallel to the first axis A1.

La bielle 36 comprend des première et deuxième parties 40 et 42 (voir figures 6 et 7) liées ensemble et articulées respectivement à la pièce rotative 30 et au deuxième bras d'actionnement 12. La première partie 40 présente un évidement 44 doté d'un filetage intérieur. La deuxième partie 42 est traversée de part en part suivant l'axe longitudinal X de la bielle, par un trou 46. Les parties 40 et 42 sont liées entre elles à l'aide d'une vis 48, dont la tige traverse le trou 46 et se visse à l'intérieur de l'évidement 44. La tête de la vis 48 est de section plus importante que celle du trou 46, de manière à ne pas pouvoir traverser celui-ci.The connecting rod 36 comprises first and second parts 40 and 42 (see FIGS. 6 and 7) linked together and hinged respectively to the rotary part 30 and to the second actuating arm 12. The first part 40 has a recess 44 provided with a internal thread. The second part 42 is traversed from one side along the longitudinal axis X of the connecting rod, through a hole 46. The parts 40 and 42 are interconnected by means of a screw 48, whose rod passes through the hole 46 and is screwed inside the recess 44. The head of the screw 48 is of larger section than that of the hole 46, so as not to be able to pass therethrough.

La bielle 36 comprend, en outre, une entretoise 50 entre ses première et deuxième parties 40, 42. Cette entretoise 50 est également trouée de manière à pouvoir être traversée par la tige de la vis 48.The rod 36 further comprises a spacer 50 between its first and second parts 40, 42. This spacer 50 is also perforated so that the rod of the screw 48 can pass therethrough.

Le montage de la bielle 50 s'effectue en positionnant d'abord l'entretoise 50 entre les parties 40 et 42, puis en vissant la vis 48 dans l'évidement 44. Ensuite, la bielle 50 est montée sur le deuxième bras d'actionnement 12 à l'aide de la pièce d'axe 47 qui traverse transversalement (i.e. perpendiculairement à l'axe X) la deuxième partie 42 de la bielle et le deuxième bras d'actionnement 12.The connecting rod 50 is mounted by first positioning the spacer 50 between the parts 40 and 42, then screwing the screw 48 into the recess 44. Then, the rod 50 is mounted on the second arm actuating 12 by means of the axle piece 47 which crosses transversely (ie perpendicular to the X axis) the second portion 42 of the connecting rod and the second actuating arm 12.

En fonction de la longueur de l'entretoise 50, la vis 48 pénètre plus ou moins profondément à l'intérieur de l'évidement 44. La longueur de l'entretoise 50 détermine donc la longueur de la bielle 36 et donc la longueur de la liaison assurée par la bielle, entre la pièce rotative 30 et le deuxième bras d'actionnement 12. L'entretoise 50 forme des moyens d'écartement au sens de l'invention.Depending on the length of the spacer 50, the screw 48 penetrates more or less deeply inside the recess 44. The length of the spacer 50 therefore determines the length of the rod 36 and therefore the length of the link provided by the connecting rod between the rotating part 30 and the second actuating arm 12. The spacer 50 forms spacing means within the meaning of the invention.

On va maintenant décrire le fonctionnement de l'assemblage comprenant la bielle 36, la pièce rotative 30 et le système anti-retour 32.The operation of the assembly comprising the connecting rod 36, the rotating part 30 and the anti-return system 32 will now be described.

Le sens de rotation de la pièce rotative 30 autorisé par le système anti-retour 32 est repéré par les flèches F.The direction of rotation of the rotating part 30 authorized by the non-return system 32 is indicated by the arrows F.

Lorsqu'on ferme les mâchoires de la pince 10, c'est-à-dire pour passer de la position de la figure 2 à celle de la figure 4, la pièce rotative 30 est entraînée par la bielle 36 suivant le sens de rotation autorisé par le système anti-retour 32. Comme représenté, le point d'entraînement de la pièce 30 passe du côté droit au côté gauche de l'axe A2 et remonte du côté gauche de l'axe A2, jusqu'à la position de fermeture maximum des mâchoires 14, représentée sur la figure 4. Il n'est pas possible d'écarter les bras 11, 12 pour rouvrir les mâchoires 14 tant que cette position de fermeture maximum n'est pas atteinte, car le système anti-retour 32 empêche la pièce rotative 30 de tourner dans le sens contraire à celui indiqué par la flèche F.When closing the jaws of the clamp 10, that is to say to move from the position of Figure 2 to that of Figure 4, the rotating part 30 is driven by the rod 36 in the direction of rotation allowed by the non-return system 32. As shown, the workout point of the workpiece 30 passes from the right side to the left side of the axis A2 and rises from the left side of the axis A2 to the closed position maximum jaws 14, shown in Figure 4. It is not possible to move the arms 11, 12 to reopen the jaws 14 until this maximum closing position is not reached because the non-return system 32 prevents the rotating part 30 from rotating in the opposite direction to that indicated by the arrow F.

Une fois la position de fermeture maximum des mâchoires atteinte, il devient possible d'écarter les bras 11, 12 pour rouvrir les mâchoires 14 car le point d'entraînement de la pièce 30 passe du côté droit de l'axe A2 (i.e. passe une position critique du système) et la bielle 36 peut redescendre du côté droit de l'axe A2, la pièce 30 tournant dans le sens de rotation autorisé.Once the maximum closing position of the jaws reached, it becomes possible to move the arms 11, 12 to reopen the jaws 14 because the driving point of the part 30 passes the right side of the axis A2 (ie passes a critical position of the system) and the rod 36 can descend to the right side of the axis A2, the workpiece 30 rotating in the direction of rotation allowed.

Lorsque les mâchoires 14 de la pince 10 passent de leur position ouverte à leur position fermée, puis repassent en position ouverte, on dit qu'elles effectuent un cycle ouverture/fermeture/réouverture. Lors d'un tel cycle, la pièce 30 effectue un tour complet autour de l'axe A2.When the jaws 14 of the clamp 10 pass from their open position to their closed position, then return to the open position, they are said to perform an opening / closing / reopening cycle. During such a cycle, the piece 30 performs a complete revolution about the axis A2.

L'inclinaison particulière de l'ouverture oblongue 34 de la pièce 30 et le fait que le doigt 38 puisse se déplacer suivant la direction longitudinale de cette ouverture, permet de passer les deux positions critiques (ou points morts) dans lesquelles le système risque de se bloquer et qui correspondent à l'alignement du doigt 38 dans le plan comprenant les deux axes A2 et A7. Dans ces positions critiques, l'inclinaison de l'ouverture 34 oblige le doigt 38 à entraîner la pièce 30 dans le sens autorisé, de sorte que le système ne se bloque pas.The particular inclination of the oblong opening 34 of the part 30 and the fact that the finger 38 can move in the longitudinal direction of this opening, makes it possible to pass the two critical positions (or dead spots) in which the system risks to lock and which correspond to the alignment of the finger 38 in the plane comprising the two axes A2 and A7. In these critical positions, the inclination of the opening 34 forces the finger 38 to drive the workpiece 30 in the authorized direction, so that the system does not lock.

Comme expliqué précédemment, il peut être intéressant de pouvoir rompre la liaison assurée par la bielle 36 entre la pièce rotative 30 et le deuxième bras d'actionnement 12. Dans ce cas, selon un mode de réalisation de l'invention, la pièce d'axe 47 est remplacée par une goupille. Cette goupille fait office de moyens de séparation permettant de rompre la liaison entre la bielle 36 et le deuxième bras d'actionnement 12.As explained above, it may be advantageous to be able to break the connection provided by the connecting rod 36 between the rotating part 30 and the second actuating arm 12. In this case, according to one embodiment of the invention, the shaft member 47 is replaced by a pin. This pin serves as separation means for breaking the connection between the rod 36 and the second actuating arm 12.

En référence aux figures 8 et 9, on va maintenant décrire un deuxième exemple de pince selon l'invention.With reference to FIGS. 8 and 9, a second example of a gripper according to the invention will now be described.

Les éléments de ce deuxième exemple de pince 110 analogues à ceux du premier exemple de pince 10 sont repérés par les mêmes références numériques augmentées de 100.The elements of this second example of clamp 110 similar to those of the first example of clamp 10 are identified by the same numerical references increased by 100.

On notera tout d'abord que les figures 8 et 9 représentent la pince 110 sans son premier bras d'actionnement 111. Ceci permet de mieux visualiser la pièce rotative 130 et la bielle 136. La pince 110 diffère de la pince 10 des figures 1 à 7 uniquement du point de vue de la structure de la bielle 136.It will be noted first of all that FIGS. 8 and 9 represent the clamp 110 without its first actuating arm 111. This makes it possible to better visualize the rotary part 130 and the connecting rod 136. The clamp 110 differs from the clamp 10 of FIGS. to 7 only from the point of view of the structure of the connecting rod 136.

La bielle 136 comprend une première partie 140 liée à une extrémité à la pièce rotative 130, par l'intermédiaire d'un doigt 138.The connecting rod 136 comprises a first portion 140 connected at one end to the rotating piece 130, via a finger 138.

Sur cette première partie 140, est fixée une partie creuse formant manchon 152. Ce manchon 152 présente sur sa surface latérale deux fentes 154 situées de chaque côté du manchon 152, qui se font face et qui sont orientées suivant l'axe longitudinal X de la bielle.On this first part 140, is fixed a hollow portion forming a sleeve 152. This sleeve 152 has on its lateral surface two slots 154 located on each side of the sleeve 152, which face each other and which are oriented along the longitudinal axis X of the rod.

La bielle 136 comprend également une deuxième partie ou tringle 142 articulée sur le deuxième bras d'articulation 112. Cette tringle 142 comprend à une de ses extrémités une portion filetée 142A. Cette portion filetée 142A traverse une pièce d'axe 157 montée rotativement sur le deuxième bras 112, autour de l'axe A7. La portion filetée 142A peut coulisser dans un trou traversant la pièce d'axe 157, suivant la direction longitudinale X de la bielle. La position de la tringle 142 par rapport à la pièce d'axe 157 peut être réglée à l'aide de deux écrous 159 placés sur la portion filetée 154, de part et d'autre de la pièce d'axe 157. Ceci permet de modifier la longueur de la liaison assurée par la bielle 136 entre la pièce rotative 130 et le bras d'actionnement 112. Les écrous 159 et la portion filetée 142A forment ainsi des premiers moyens d'écartement au sens de l'invention. Ces premiers moyens d'écartement sont utilisés pour régler l'ouverture maximum des mâchoires 114 de la pince.The rod 136 also comprises a second portion or rod 142 hinged to the second hinge arm 112. This rod 142 comprises at one of its ends a threaded portion 142A. This threaded portion 142A passes through an axle member 157 rotatably mounted on the second arm 112, about the axis A7. The threaded portion 142A can slide in a hole through the axis member 157, in the longitudinal direction X of the connecting rod. The position of the rod 142 relative to the axis member 157 can be adjusted by means of two nuts 159 placed on the threaded portion 154, on either side of the axis member 157. This allows the modify the length of the connection provided by the connecting rod 136 between the rotary part 130 and the actuating arm 112. The nuts 159 and the threaded portion 142A thus form first spacing means within the meaning of the invention. These first spacing means are used to adjust the maximum opening of the jaws 114 of the clamp.

La portion d'extrémité de la tringle 142, située à l'opposé de la pièce d'axe 157, est passée à l'intérieur du manchon 152 et traversée transversalement (i.e. perpendiculairement à l'axe X) par une tige 161 qui traverse également les fentes 154 du manchon 152. Cette tige 161 porte à une extrémité un bouton poussoir 160 et à son autre extrémité une tête bloquante 162.The end portion of the rod 142, located opposite the axis member 157, is passed inside the sleeve 152 and traversed transversely (ie perpendicular to the X axis) by a rod 161 which also passes through the slots 154 of the sleeve 152. This rod 161 carries at one end a push button 160 and at its other end a locking head 162.

En temps normal, la tête bloquante 162 est maintenue contre un épaulement 164 formé à la surface du manchon 152 et le bouton poussoir 160 est dans sa position ressortie. Un ressort ou tout autre moyen élastique (non représenté) peut être prévu entre la tringle 142 et le bouton poussoir 160 pour maintenir ce dernier dans sa position ressortie.Normally, the locking head 162 is held against a shoulder 164 formed on the surface of the sleeve 152 and the push button 160 is in its extended position. A spring or other elastic means (not shown) may be provided between the rod 142 and the push button 160 to maintain the latter in its outward position.

Lorsqu'on enfonce le bouton poussoir 160, la tête bloquante 162 se dégage de l'épaulement 164 et la tige 161 peut alors glisser suivant la flèche G dans les fentes 154, de sorte qu'une portion de la tringle 142 sort du manchon 152. On modifie ainsi la longueur de la liaison assurée par la bielle 136 entre la pièce rotative 130 et le bras d'actionnement 112. La tige 161 et le manchon 152 forment donc des deuxièmes moyens d'écartement au sens de l'invention. Ces deuxièmes moyens d'écartement, contrairement aux premiers, ne sont pas utilisés pour régler l'ouverture maximum des mâchoires de la pince mais pour rouvrir les mâchoires lors de leur fermeture, dans le cas d'un mauvais positionnement du collier à serrer ou d'une erreur sur le type ou la taille du collier.When pressing the pushbutton 160, the locking head 162 disengages from the shoulder 164 and the rod 161 can then slide along the arrow G in the slots 154, so that a portion of the rod 142 leaves the sleeve 152 This changes the length of the connection provided by the connecting rod 136 between the rotating part 130 and the actuating arm 112. The rod 161 and the sleeve 152 thus form second spacing means within the meaning of the invention. These second spacing means, unlike the first, are not used to adjust the maximum opening of the jaws of the clamp but to reopen the jaws during their closure, in the case of a bad positioning of the clamp to tighten or an error on the type or size of the collar.

Claims (9)

Pince comprenant des mâchoires (14) et des premier et deuxième bras d'actionnement (11, 12) montés pivotant l'un par rapport à l'autre autour d'un premier axe (A1), l'écartement et le rapprochement des bras d'actionnement entraînant l'ouverture et la fermeture des mâchoires, caractérisée en ce qu'elle comprend : une pièce rotative (30) montée rotativement sur le premier bras d'actionnement, autour d'un deuxième axe (A2) sensiblement parallèle au premier axe, cette pièce rotative (30) effectuant un tour complet en un cycle ouverture/fermeture/réouverture des mâchoires (14); un système anti-retour (32) n'autorisant qu'une rotation unidirectionnelle de la pièce rotative; et une bielle (36) assurant une liaison entre la pièce rotative (30) et le deuxième bras d'actionnement (12).Clamp comprising jaws (14) and first and second actuating arms (11, 12) pivotally mounted relative to one another about a first axis (A1), spacing and bringing the arms together actuating device causing the opening and closing of the jaws, characterized in that it comprises: a rotatable part (30) rotatably mounted on the first actuating arm, about a second axis (A2) substantially parallel to the first axis, this rotating part (30) performing a complete revolution in a cycle opening / closing / reopening of the jaws (14); a non-return system (32) allowing only a unidirectional rotation of the rotating part; and a connecting rod (36) providing a connection between the rotating part (30) and the second actuating arm (12). Pince selon la revendication 1, dans laquelle ledit système anti-retour (32) est un moyeu à roue libre.The clamp of claim 1, wherein said non-return system (32) is a freewheel hub. Pince selon la revendication 1 ou 2, dans laquelle une extrémité de la bielle (36) présente un doigt (38) et la pièce rotative (30) présente une ouverture oblongue (34) dans laquelle le doigt est engagé de sorte qu'il peut tourner dans l'ouverture oblongue et se déplacer suivant la direction longitudinale de celle-ci.Gripper according to claim 1 or 2, wherein one end of the connecting rod (36) has a finger (38) and the rotating part (30) has an oblong opening (34) in which the finger is engaged so that it can turn in the oblong opening and move in the longitudinal direction of it. Pince selon la revendication 3, dans laquelle ladite ouverture oblongue (34) est orientée de telle sorte que la zone de l'ouverture la plus éloignée du deuxième axe (A2) se situe en amont de la zone la moins éloignée du deuxième axe, suivant le sens de rotation de la pièce rotative.The clip according to claim 3, wherein said elongate opening (34) is oriented such that the area of the opening furthest from the second axis (A2) is upstream of the region which is the least distant from the second axis, following the direction of rotation of the rotating part. Pince selon l'une quelconque des revendications 1 à 4, comprenant des moyens de séparation pour rompre la liaison assurée par la bielle (36), entre la pièce rotative (30) et le deuxième bras d'actionnement (12).Clamp according to any one of claims 1 to 4, comprising separating means for breaking the connection provided by the connecting rod (36) between the rotating part (30) and the second actuating arm (12). Pince selon la revendication 5, comprenant des moyens de séparation pour rompre la liaison entre la bielle (36) et le deuxième bras d'actionnement (12).Gripper according to claim 5, comprising separation means for breaking the connection between the connecting rod (36) and the second actuating arm (12). Pince selon la revendication 5, dans laquelle ladite bielle comprend des première et deuxième parties liées ensemble et articulées respectivement sur la pièce rotative et sur le deuxième bras d'actionnement, la pince comprenant des moyens de séparation pour rompre la liaison entre les première et deuxième parties.Gripper according to claim 5, wherein said connecting rod comprises first and second parts connected together and articulated respectively on the rotating part and on the second actuating arm, the clamp comprising separating means for breaking the connection between the first and second parts. Pince selon l'une quelconque des revendications 1 à 7, comprenant des moyens d'écartement (50; 152, 159, 161) pour modifier la longueur de la liaison assurée par la bielle (36; 136), entre la pièce rotative (30; 130) et le deuxième bras d'actionnement (12; 112).Gripper according to any one of claims 1 to 7, comprising spacer means (50; 152, 159, 161) for changing the length of the connection provided by the connecting rod (36; 136) between the rotating part (30; 130) and the second actuating arm (12; 112). Pince selon l'une quelconque des revendications 1 à 8, dans laquelle ladite bielle comprend des première (40) et deuxième parties (42) liées ensemble et articulées respectivement à la pièce rotative (30) et au deuxième bras d'actionnement (12), la pince comprenant une entretoise (50) entre les première et deuxième parties.Clamp according to any one of claims 1 to 8, wherein said connecting rod comprises first (40) and second parts (42) connected together and articulated respectively to the rotating part (30) and the second actuating arm (12) , the clamp comprising a spacer (50) between the first and second parts.
EP07113927A 2006-08-31 2007-08-07 Spring collet with backstop system Active EP1894676B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL07113927T PL1894676T3 (en) 2006-08-31 2007-08-07 Spring collet with backstop system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR0653530A FR2905296B1 (en) 2006-08-31 2006-08-31 TIGHTENING CLAMP WITH ANTI-RETURN SYSTEM

Publications (3)

Publication Number Publication Date
EP1894676A2 true EP1894676A2 (en) 2008-03-05
EP1894676A3 EP1894676A3 (en) 2008-03-12
EP1894676B1 EP1894676B1 (en) 2010-04-28

Family

ID=37817902

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07113927A Active EP1894676B1 (en) 2006-08-31 2007-08-07 Spring collet with backstop system

Country Status (5)

Country Link
EP (1) EP1894676B1 (en)
AT (1) ATE465846T1 (en)
DE (1) DE602007006115D1 (en)
FR (1) FR2905296B1 (en)
PL (1) PL1894676T3 (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2737070A (en) * 1953-09-18 1956-03-06 Burndy Engineering Co Inc Tool with full stroke compelling ratchet mechanism
US2933000A (en) * 1957-12-27 1960-04-19 Gen Dynamics Corp Crimping tool
US3157075A (en) * 1962-01-17 1964-11-17 Sargent & Co Plier type tool with motion-compelling mechanism
US3527125A (en) * 1968-02-07 1970-09-08 Etc Inc Full stroke compelling mechanism

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2737070A (en) * 1953-09-18 1956-03-06 Burndy Engineering Co Inc Tool with full stroke compelling ratchet mechanism
US2933000A (en) * 1957-12-27 1960-04-19 Gen Dynamics Corp Crimping tool
US3157075A (en) * 1962-01-17 1964-11-17 Sargent & Co Plier type tool with motion-compelling mechanism
US3527125A (en) * 1968-02-07 1970-09-08 Etc Inc Full stroke compelling mechanism

Also Published As

Publication number Publication date
PL1894676T3 (en) 2010-09-30
FR2905296B1 (en) 2009-08-21
EP1894676B1 (en) 2010-04-28
ATE465846T1 (en) 2010-05-15
DE602007006115D1 (en) 2010-06-10
EP1894676A3 (en) 2008-03-12
FR2905296A1 (en) 2008-03-07

Similar Documents

Publication Publication Date Title
FR2736572A1 (en) PLIERS
EP2756923B1 (en) Clamp meter, in particular for an earth loop, including a jaw secured to a stationary mounting and a jaw pivotably mounted on the mounting
CA2875375A1 (en) Remote manipulator with a universal cable
EP0962286B1 (en) Unidirectional strap wrench
WO2016156695A1 (en) Device for holding a pivoting cutting blade
WO2007006894A1 (en) Pliers for stripping tubular elements in particular cables or similar
EP1292527B1 (en) Screwing spindle
EP2520477A1 (en) Rapid locking pin for use on a cycle
EP1894676B1 (en) Spring collet with backstop system
EP1725381B1 (en) Pliers for cutting plastic tubes
EP2408973B1 (en) Road system apparatus with a safety device for at least one buffer of the apparatus
EP3670314B1 (en) Hinge for folding bike
FR2617784A1 (en) HAND BRAKE COMPENSATOR
CH713218B1 (en) Quick fixing device for a watch strap.
FR2472694A1 (en) ROLLER RETAINER OR COUNTER CAM FOR BRAKE
FR2815372A1 (en) HOLDING ASSEMBLY FOR A CLOSURE ELEMENT
EP3479446A1 (en) Cam grip for fitting a cold-shrink sleeve onto the end of a cable or around a junction between two cables
FR2977821A1 (en) Grip screw clamp for clamping small contacting pieces used in e.g. joinery work, has legs extending in parallel, and articulation connecting opposite ends of legs such that legs and articulation are provided in U-shape
CH374351A (en) Adjustable gap sliding two-jaw collet
EP0724107B1 (en) Clamping collar having quick acting adjustment means.
WO2020128185A1 (en) Foldable crank arm
FR2677572A1 (en) Grip (pliers) for tightening (gripping) metal strips
EP4166436A1 (en) Hinge with a release member
FR2661347A1 (en) Clamp for pressing a component onto a support
FR2559053A1 (en) Device for extracting the pin from a tooth

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC MT NL PL PT RO SE SI SK TR

AX Request for extension of the european patent

Extension state: AL BA HR MK YU

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC MT NL PL PT RO SE SI SK TR

AX Request for extension of the european patent

Extension state: AL BA HR MK YU

17P Request for examination filed

Effective date: 20080910

AKX Designation fees paid

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC MT NL PL PT RO SE SI SK TR

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

GRAC Information related to communication of intention to grant a patent modified

Free format text: ORIGINAL CODE: EPIDOSCIGR1

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC MT NL PL PT RO SE SI SK TR

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

Free format text: LANGUAGE OF EP DOCUMENT: FRENCH

REF Corresponds to:

Ref document number: 602007006115

Country of ref document: DE

Date of ref document: 20100610

Kind code of ref document: P

REG Reference to a national code

Ref country code: RO

Ref legal event code: EPE

REG Reference to a national code

Ref country code: NL

Ref legal event code: VDEP

Effective date: 20100428

LTIE Lt: invalidation of european patent or patent extension

Effective date: 20100428

REG Reference to a national code

Ref country code: PL

Ref legal event code: T3

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: ES

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20100808

Ref country code: NL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20100428

Ref country code: SE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20100428

Ref country code: LT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20100428

REG Reference to a national code

Ref country code: IE

Ref legal event code: FD4D

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LV

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20100428

Ref country code: IS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20100828

Ref country code: FI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20100428

Ref country code: AT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20100428

Ref country code: SI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20100428

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: CY

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20100526

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20100428

Ref country code: DK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20100428

Ref country code: PT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20100830

Ref country code: EE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20100428

BERE Be: lapsed

Owner name: ETS CAILLAU

Effective date: 20100831

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20100428

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MC

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20100831

26N No opposition filed

Effective date: 20110131

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20100729

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20100831

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20100428

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20110807

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20110831

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20110831

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20110807

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BG

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20100428

Ref country code: HU

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20101029

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20100807

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BG

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20100728

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 10

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 11

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 12

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: TR

Payment date: 20220721

Year of fee payment: 16

Ref country code: RO

Payment date: 20220725

Year of fee payment: 16

Ref country code: IT

Payment date: 20220808

Year of fee payment: 16

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: PL

Payment date: 20220711

Year of fee payment: 16

REG Reference to a national code

Ref country code: DE

Ref legal event code: R082

Ref document number: 602007006115

Country of ref document: DE

Representative=s name: CBDL PATENTANWAELTE GBR, DE

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: CZ

Payment date: 20230710

Year of fee payment: 17

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20230816

Year of fee payment: 17

Ref country code: DE

Payment date: 20230808

Year of fee payment: 17

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: RO

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20230807