EP0718076A1 - Device for the vibrationless quick coupling of a working tool shaft to a percussion apparatus - Google Patents

Device for the vibrationless quick coupling of a working tool shaft to a percussion apparatus Download PDF

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Publication number
EP0718076A1
EP0718076A1 EP95440091A EP95440091A EP0718076A1 EP 0718076 A1 EP0718076 A1 EP 0718076A1 EP 95440091 A EP95440091 A EP 95440091A EP 95440091 A EP95440091 A EP 95440091A EP 0718076 A1 EP0718076 A1 EP 0718076A1
Authority
EP
European Patent Office
Prior art keywords
ring
rollers
groove
working tool
end piece
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
EP95440091A
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German (de)
French (fr)
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EP0718076B1 (en
Inventor
Marc Bidaux
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.)
BIDAUX MARC SA
Original Assignee
BIDAUX MARC BIDAUX MARC SA
Bidaux Marc
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Application filed by BIDAUX MARC BIDAUX MARC SA, Bidaux Marc filed Critical BIDAUX MARC BIDAUX MARC SA
Publication of EP0718076A1 publication Critical patent/EP0718076A1/en
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Publication of EP0718076B1 publication Critical patent/EP0718076B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25D—PERCUSSIVE TOOLS
    • B25D17/00—Details of, or accessories for, portable power-driven percussive tools
    • B25D17/08—Means for retaining and guiding the tool bit, e.g. chucks allowing axial oscillation of the tool bit
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S403/00—Joints and connections
    • Y10S403/04—Quick release
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T403/00—Joints and connections
    • Y10T403/59—Manually releaseable latch type
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T403/00—Joints and connections
    • Y10T403/59—Manually releaseable latch type
    • Y10T403/599—Spring biased manipulator

Definitions

  • the present invention relates to an anti-vibration device for quick coupling of the tail of a working tool to a percussion device.
  • Percussion devices and in particular percussion hammers, are used in many fields of application for pickling, knocking out and digging grooves in various materials.
  • These devices generally comprise a cylindrical body comprising at one of its ends a device for rapid locking and unlocking of the tail of a working tool, the active part of which varies according to the type of application.
  • the tail of the working tool usually includes a turning allowing it to be held in the percussion device by means of abutment members.
  • Document EP-A-90420482 in the name of the applicant, describes a percussion device comprising a body of generally tubular shape comprising an end piece on which is adapted a system for coupling the tail of a work tool associated with a shock absorber and comprising three stop balls which can be erased by the controlled sliding of an elastic return ring threaded onto the end piece, and an annular drawer, disposed internally at the end piece, carrying retractable stopper balls introduced partially in the bar turning performed in the tail of the working tool, which are placed in the holes left free by the erasure of the stop balls, allowing the axial sliding of the tail of the working tool and therefore its extraction .
  • the object of the present invention is to remedy these drawbacks by proposing a coupling device of greater reliability and of simplified manufacture, therefore of lower cost and of easy and rapid maintenance, clearly improving the comfort of use. of the percussion device.
  • the coupling device which is the subject of the invention is essentially characterized in that it comprises on the one hand a cylindrical end piece which extends the end of the body of a percussion device and in which three longitudinal grooves are practiced regularly angularly spaced, in each of which can move a roller provided with an axis whose ends are capable of rolling or sliding on the edges of said groove; on the other hand a ring threaded on said end piece, on which it can move longitudinally by being biased back against said rollers by means of a spring, said ring having internally an annular projection whose front face is flat and whose face rear is concave and partially envelops said rollers, the forward movement of said ring can be achieved by means of a ring which surrounds the assembly and which has on its internal wall, approximately in the middle, an annular rib.
  • the annular rib of said ring has a vertical front face against which the rear edge of the ring comes to bear and an oblique rear face helping to disengage the rollers from said ring during unlocking.
  • the ring which surrounds the assembly is provided, in rear of said annular rib, a helical rib formed on a part of its internal circumference, and a bore is formed radially in the end piece behind the longitudinal grooves, into which bore is introduced a blocking piece which emerges from the tip and which abuts against said helical rib.
  • a coupling device comprises a tip 1 of generally cylindrical shape, extending forward the body 10 'of a percussion device 1' of the type known.
  • the end piece 1 are made longitudinally three grooves 10, angularly offset by 120 ° and each comprising two flanges 100 slightly set back from the surface of the end piece.
  • the grooves 10 can move three rollers 2, each provided with an axis 20 whose ends rest on the two edges 100 of the grooves 10.
  • a ring 3 internally having an angular projection 30 whose rear face is concave, is threaded on the end piece 1 and is secured coaxially, towards the front, at the end 40 of a spring 4, the other end 41 of which is secured to a ring 8 which abuts against a stop ring 80 fixed to the 'front end of the nozzle 1 under the thrust of the spring 4 also exerting a thrust, towards the bottom of the grooves 10, on the ring 3 which surrounds the rollers 2 partially inserted in the concave face of the annular projection 30 of the ring 3.
  • a locking ring 5 envelops the assembly, allowing the movement of the ring 3 forwards.
  • a counterweight 11 ' is engaged in a known manner in a bore formed in the body 10', being intended to strike, by the pressure of a fluid, the tail 6 of a working tool, coupled at the end piece 1 as can be seen in FIG. 2 and having two polygonal parts 60 and 61 angularly immobilizing said shank of the tool 6 inside the end piece 1 limited in translation over a stroke defined by a turning 62 into which the rollers 2 covered by the concave face of the annular projection 30 of the ring 3 penetrate.
  • the rollers 2 advantageously have a groove 21 which follows the contour of the surface of the shank 6 in the turning 62, avoiding, as is the case with current devices using balls, deforming the surface of said tool during its movements in back and forth, under the effect of the counterweight 11 '.
  • the ring 5 is provided on its internal wall 50 with an annular projection 51 having a vertical front face 510 against which the vertical rear edge 31 of the ring 3 abuts and a rear face 511 oblique helping to disengage the rollers of said ring 3 when unlocking.
  • the internal wall 50 of the ring 5 also includes, behind the annular projection 51, a helical rib 52 provided over its entire length with a groove 54 in which can slide, when the ring 5 is turned in view of the advancing, the stud 70 of a stud screw 7 screwed into a threaded bore 12 formed in the end piece 1 behind the grooves 10, the stud 70 emerging from the end piece 1.
  • Unlocking the tail of the working tool inserted into the device according to the invention is carried out as follows: a rotation of the ring 5, by half a turn for example, allows it to slide towards the front, by means of the stud 70 and the helical groove 54, by pushing the ring 3 against the spring 4, which has the effect of releasing the rollers 2 from the turning 62 of the shank 6 of the tool of work.
  • the rollers 2 move upwards in the space 53 delimited by the two ribs 51 and 52 of the ring 5, which allows the shank 6 to come out of the tool of the percussion device from the nozzle 1. Locking of the tool shank is achieved by the reverse operation.

Abstract

The rapid anti-vibration coupling for an impact tool comprises a cylindrical shaped connector (1) which extends the body (10') of an impact tool (1') towards the front. The tool has three angularly spaced longitudinal grooves (10) in which a roller (2) with a spindle (20) can be displaced. The spindle ends can roll or slide on the edges (100) of the groove. A ring (3) slipped onto the connector displaces along it and is returned rearwards against the rollers by a spring (4). The ring, with an internal annular projection (30), whose front face is plane and rear face concave partially envelops the rollers. The ring is displaced frontwards by a collar (5) which surrounds the assembly and which has on its internal wall an annular rib. The collar internal wall has in the rear an annular projection, a helicoidal rib having along the whole of its length a groove in which a pin in the connector can slide when the collar is turned to move it forward. The simply made and cheap coupling improves the user comfort of an impact tool.

Description

La présente invention a pour objet un dispositif antivibratile d'accouplement rapide de la queue d'un outil de travail à un appareil à percussion.The present invention relates to an anti-vibration device for quick coupling of the tail of a working tool to a percussion device.

Les appareils à percussion, et particulièrement les marteaux piqueurs à percussion, sont utilisés dans de nombreux domaines d'application pour décaper, défoncer et creuser des saignées dans des matériaux divers.Percussion devices, and in particular percussion hammers, are used in many fields of application for pickling, knocking out and digging grooves in various materials.

Ces appareils comportent généralement un corps de forme cylindrique comprenant à l'une de ses extrémités un dispositif de verrouillage et de déverrouillage rapides de la queue d'un outil de travail dont la partie active varie suivant le type d'application. Ainsi dans le cas d'un outil destiné à l'écorçage ou au décapage, la queue de l'outil de travail comporte habituellement un décolletage permettant son maintien dans l'appareil à percussion au moyen d'organes de butée.These devices generally comprise a cylindrical body comprising at one of its ends a device for rapid locking and unlocking of the tail of a working tool, the active part of which varies according to the type of application. Thus, in the case of a tool intended for debarking or pickling, the tail of the working tool usually includes a turning allowing it to be held in the percussion device by means of abutment members.

Le document EP-A-90420482, au nom de la demanderesse, décrit un appareil à percussion comportant un corps de forme générale tubulaire comprenant un embout extrême sur lequel est adapté un système d'accouplement de la queue d'un outil de travail associé à un amortisseur de choc et comprenant trois billes d'arrêt effaçables par le coulissement commandé d'une bague à rappel élastique enfilée sur l'embout extrême, et un tiroir annulaire, disposé intérieurement à l'embout, portant des billes de butées escamotables introduites partiellement dans le décolletage pratiqué dans la queue de l'outil de travail, qui viennent se placer dans les trous laissés libres par l'effacement des billes d'arrêt, permettant le coulissement axial de la queue de l'outil de travail et donc son extraction.Document EP-A-90420482, in the name of the applicant, describes a percussion device comprising a body of generally tubular shape comprising an end piece on which is adapted a system for coupling the tail of a work tool associated with a shock absorber and comprising three stop balls which can be erased by the controlled sliding of an elastic return ring threaded onto the end piece, and an annular drawer, disposed internally at the end piece, carrying retractable stopper balls introduced partially in the bar turning performed in the tail of the working tool, which are placed in the holes left free by the erasure of the stop balls, allowing the axial sliding of the tail of the working tool and therefore its extraction .

Cependant les dispositifs connus présentent l'inconvénient de se bloquer sous l'effet de la déformation de certaines pièces dues à l'usure: ainsi, par exemple, dans le cas du dispositif qui vient d'être décrit, les billes d'arrêt, qui présentent toujours un seul point de contact avec la surface arrondie du décolletage de la queue de l'outil de travail, peuvent détériorer ladite surface durant les mouvements aller et retour effectués par l'outil.However, known devices have the drawback of being blocked under the effect of the deformation of certain parts due to wear: thus, for example, in the case of the device which has just been described, the stop balls, which always have a single point of contact with the rounded surface of the turning of the tail of the working tool, can deteriorate said surface during the back and forth movements made by the tool.

D'autre part le coût de fabrication de ces dispositifs est relativement élevé du fait du grand nombre de pièces qui les composent, entraînant par ailleurs pour leur nettoyage ou pour leur remplacement un démontage et un remontage long et compliqué qui nécessite un outillage spécifique.On the other hand the manufacturing cost of these devices is relatively high due to the large number of parts which compose them, involving moreover for their cleaning or for their replacement a long and complicated disassembly and reassembly which requires specific tools.

La présente invention a pour but de remédier à ces inconvénients en proposant un dispositif d'accouplement de plus grande fiabilité et de fabrication simplifiée, donc d'un coût plus faible et d'un entretien facile et rapide, améliorant nettement le confort d'utilisation de l'appareil à percussion.The object of the present invention is to remedy these drawbacks by proposing a coupling device of greater reliability and of simplified manufacture, therefore of lower cost and of easy and rapid maintenance, clearly improving the comfort of use. of the percussion device.

Le dispositif d'accouplement objet de l'invention se caractérise essentiellement en ce qu'il comprend d'une part un embout de forme cylindrique qui prolonge l'extrémité du corps d'un appareil à percussion et dans lequel sont pratiquées trois gorges longitudinales régulièrement espacées angulairement, dans chacune desquelles peut se déplacer un galet muni d'un axe dont les extrémités sont aptes à rouler ou à glisser sur les bords de ladite gorge; d'autre part un anneau enfilé sur ledit embout, sur lequel il peut se déplacer longitudinalement en étant rappelé en arrière contre lesdits galets au moyen d'un ressort, ledit anneau présentant intérieurement une saillie annulaire dont la face avant est plane et dont la face arrière est concave et enveloppe partiellement lesdits galets, le déplacement vers l'avant dudit anneau pouvant être réalisé au moyen d'une bague qui entoure l'ensemble et qui comporte sur sa paroi interne, approximativement en son milieu, une nervure annulaire.The coupling device which is the subject of the invention is essentially characterized in that it comprises on the one hand a cylindrical end piece which extends the end of the body of a percussion device and in which three longitudinal grooves are practiced regularly angularly spaced, in each of which can move a roller provided with an axis whose ends are capable of rolling or sliding on the edges of said groove; on the other hand a ring threaded on said end piece, on which it can move longitudinally by being biased back against said rollers by means of a spring, said ring having internally an annular projection whose front face is flat and whose face rear is concave and partially envelops said rollers, the forward movement of said ring can be achieved by means of a ring which surrounds the assembly and which has on its internal wall, approximately in the middle, an annular rib.

Selon une caractéristique additionnelle avantageuse de l'invention la nervure annulaire de ladite bague présente une face avant verticale contre laquelle vient s'appuyer le bord arrière de l'anneau et une face arrière oblique aidant au désengagement des galets dudit anneau lors du déverrouillage.According to an advantageous additional characteristic of the invention, the annular rib of said ring has a vertical front face against which the rear edge of the ring comes to bear and an oblique rear face helping to disengage the rollers from said ring during unlocking.

Selon une autre caractéristique additionnelle de l'invention la bague qui entoure l'ensemble est pourvue, en arrière de ladite nervure annulaire, d'une nervure hélicoïdale ménagée sur une partie de sa circonférence interne, et un alésage est pratiqué radialement dans l'embout en arrière des gorges longitudinales, dans lequel alésage est introduite une pièce de blocage qui émerge de l'embout et qui vient en butée contre ladite nervure hélicoïdale.According to another additional characteristic of the invention, the ring which surrounds the assembly is provided, in rear of said annular rib, a helical rib formed on a part of its internal circumference, and a bore is formed radially in the end piece behind the longitudinal grooves, into which bore is introduced a blocking piece which emerges from the tip and which abuts against said helical rib.

Les avantages et les caractéristiques de la présente invention ressortiront plus clairement de la description qui suit et qui se rapporte au dessin annexé, étant entendu que cette description ne présente aucun caractère limitatif vis à vis de l'invention.The advantages and characteristics of the present invention will emerge more clearly from the description which follows and which relates to the appended drawing, it being understood that this description has no limiting character with respect to the invention.

Dans le dessin annexé :

  • la figure 1 représente une vue en perspective et en éclaté du dispositif d'accouplement selon l'invention monté sur un appareil à percussion.
  • la figure 2 représente une vue en coupe d'un dispositif selon l'invention auquel est accouplée la queue d'un outil de travail.
In the attached drawing:
  • Figure 1 shows a perspective and exploded view of the coupling device according to the invention mounted on a percussion device.
  • 2 shows a sectional view of a device according to the invention to which is coupled the tail of a working tool.

Si on se réfère à la figure 1 on peut voir qu'un dispositif d'accouplement selon l'invention comprend un embout 1 de forme globalement cylindrique, prolongeant vers l'avant le corps 10' d'un appareil à percussion 1' de type connu. Dans l'embout 1 sont pratiquées longitudinalement trois gorges 10, décalées angulairement de 120° et comprenant chacune deux rebords 100 légèrement en retrait de la surface de l'embout. Dans les gorges 10 peuvent se déplacer trois galets 2, munis chacun d'un axe 20 dont les extrémités reposent sur les deux bords 100 des gorges 10. Un anneau 3, présentant intérieurement une saillie angulaire 30 dont la face arrière est concave, est enfilé sur l'embout 1 et est solidarisé coaxialement, vers l'avant, à l'extrémité 40 d'un ressort 4 dont l'autre extrémité 41 est solidarisée à une bague 8 venant en butée contre un jonc d'arrêt 80 fixé à l'extrémité avant de l'embout 1 sous la poussée du ressort 4 exerçant également une poussée, vers le fond des gorges 10, sur l'anneau 3 qui entoure les galets 2 insérés partiellement dans la face concave de la saillie annulaire 30 de l'anneau 3. Une bague de verrouillage 5 enveloppe l'ensemble, permettant le déplacement de l'anneau 3 vers l'avant.Referring to Figure 1 we can see that a coupling device according to the invention comprises a tip 1 of generally cylindrical shape, extending forward the body 10 'of a percussion device 1' of the type known. In the end piece 1 are made longitudinally three grooves 10, angularly offset by 120 ° and each comprising two flanges 100 slightly set back from the surface of the end piece. In the grooves 10 can move three rollers 2, each provided with an axis 20 whose ends rest on the two edges 100 of the grooves 10. A ring 3, internally having an angular projection 30 whose rear face is concave, is threaded on the end piece 1 and is secured coaxially, towards the front, at the end 40 of a spring 4, the other end 41 of which is secured to a ring 8 which abuts against a stop ring 80 fixed to the 'front end of the nozzle 1 under the thrust of the spring 4 also exerting a thrust, towards the bottom of the grooves 10, on the ring 3 which surrounds the rollers 2 partially inserted in the concave face of the annular projection 30 of the ring 3. A locking ring 5 envelops the assembly, allowing the movement of the ring 3 forwards.

On peut voir également qu'une masselotte 11' est engagée de manière connue dans un alésage pratiqué dans le corps 10', étant destinée à venir percuter, par la pression d'un fluide, la queue 6 d'un outil de travail, accouplé à l'embout 1 comme on peut le voir sur la figure 2 et possédant deux parties polygonales 60 et 61 immobilisant angulairement ladite queue de l'outil 6 à l'intérieur de l'embout 1 limitée en translation sur une course définie par un décolletage 62 dans lequel pénètrent les galets 2 recouverts par la face concave de la saillie annulaire 30 de l'anneau 3.We can also see that a counterweight 11 'is engaged in a known manner in a bore formed in the body 10', being intended to strike, by the pressure of a fluid, the tail 6 of a working tool, coupled at the end piece 1 as can be seen in FIG. 2 and having two polygonal parts 60 and 61 angularly immobilizing said shank of the tool 6 inside the end piece 1 limited in translation over a stroke defined by a turning 62 into which the rollers 2 covered by the concave face of the annular projection 30 of the ring 3 penetrate.

Les galets 2 comportent avantageusement une gorge 21 qui épouse le contour de la surface de la queue 6 dans le décolletage 62, évitant, comme c'est le cas des dispositifs actuels utilisant des billes, de déformer la surface dudit outil lors de ses déplacements en avant et en arrière, sous l'effet de la masselotte 11'.The rollers 2 advantageously have a groove 21 which follows the contour of the surface of the shank 6 in the turning 62, avoiding, as is the case with current devices using balls, deforming the surface of said tool during its movements in back and forth, under the effect of the counterweight 11 '.

On peut voir également sur la figure 2 que la bague 5 est pourvue sur sa paroi interne 50 d'une saillie annulaire 51 présentant une face avant 510 verticale contre laquelle vient buter le bord arrière vertical 31 de l'anneau 3 et une face arrière 511 oblique aidant au désengagement des galets dudit anneau 3 lors du déverrouillage.It can also be seen in FIG. 2 that the ring 5 is provided on its internal wall 50 with an annular projection 51 having a vertical front face 510 against which the vertical rear edge 31 of the ring 3 abuts and a rear face 511 oblique helping to disengage the rollers of said ring 3 when unlocking.

La paroi interne 50 de la bague 5 comporte également, en arrière de la saillie annulaire 51, une nervure hélicoidale 52 munie sur toute sa longueur d'une gorge 54 dans laquelle peut coulisser, lorsque l'on tourne la bague 5 en vue de la faire avancer, le téton 70 d'une vis à téton 7 vissée dans un alésage taraudé 12 ménagé dans l'embout 1 en arrière des gorges 10, le téton 70 émergeant de l'embout 1.The internal wall 50 of the ring 5 also includes, behind the annular projection 51, a helical rib 52 provided over its entire length with a groove 54 in which can slide, when the ring 5 is turned in view of the advancing, the stud 70 of a stud screw 7 screwed into a threaded bore 12 formed in the end piece 1 behind the grooves 10, the stud 70 emerging from the end piece 1.

Le déverrouillage de la queue de l'outil de travail insérée dans le dispositif selon l'invention est effectué de la façon suivante : une rotation de la bague 5, d'un demi-tour par exemple, permet son coulissement vers l'avant, par l'intermédiaire du téton 70 et de la gorge hélicoidale 54, en poussant l'anneau 3 contre le ressort 4, ce qui a pour effet de libérer les galets 2 du décolletage 62 de la queue 6 de l'outil de travail. Les galets 2 se déplacent vers le haut dans l'espace 53 délimité par les deux nervures 51 et 52 de la bague 5, ce qui permet de sortir la queue 6 de l'outil de l'appareil à percussion de l'embout 1. Le verrouillage de la queue de l'outil est réalisé par la manoeuvre inverse.Unlocking the tail of the working tool inserted into the device according to the invention is carried out as follows: a rotation of the ring 5, by half a turn for example, allows it to slide towards the front, by means of the stud 70 and the helical groove 54, by pushing the ring 3 against the spring 4, which has the effect of releasing the rollers 2 from the turning 62 of the shank 6 of the tool of work. The rollers 2 move upwards in the space 53 delimited by the two ribs 51 and 52 of the ring 5, which allows the shank 6 to come out of the tool of the percussion device from the nozzle 1. Locking of the tool shank is achieved by the reverse operation.

Claims (4)

Dispositif antivibratile d'accouplement rapide de la queue d'un outil de travail à un appareil à percussion caractérisé en ce qu'il comprend d'une part un embout de forme cylindrique (1) qui prolonge vers l'avant le corps (10') d'un appareil à percussion (1') et dans lequel sont pratiquées trois gorges longitudinales (10) régulièrement espacées angulairement, dans chacune desquelles peut se déplacer un galet (2) muni d'un axe (20) dont les extrémités sont aptes à rouler ou à glisser sur les bords (100) de ladite gorge (10) ; et d'autre part un anneau (3) enfilé sur ledit embout (1) sur lequel il peut se déplacer longitudinalement en étant rappelé en arrière contre lesdits galets (2) au moyen d'un ressort (4), ledit anneau (3) présentant intérieurement une saillie annulaire (30) dont la face avant est plane et dont la face arrière est concave et enveloppe partiellement lesdits galets (2), le déplacement vers l'avant dudit anneau (3) pouvant être réalisé au moyen d'une bague (5) qui entoure l'ensemble et qui comporte sur sa paroi interne (50), approximativement en son milieu, une nervure annulaire (51).Anti-vibration device for quick coupling of the tail of a working tool to a percussion device, characterized in that it comprises on the one hand a cylindrical end piece (1) which extends the body forward (10 ' ) of a percussion device (1 ') and in which three longitudinal grooves (10) are regularly angularly spaced, in each of which can move a roller (2) provided with an axis (20) whose ends are suitable rolling or sliding on the edges (100) of said groove (10); and on the other hand a ring (3) threaded on said end piece (1) on which it can move longitudinally while being biased back against said rollers (2) by means of a spring (4), said ring (3) internally having an annular projection (30) whose front face is planar and whose rear face is concave and partially envelops said rollers (2), the forward movement of said ring (3) can be achieved by means of a ring (5) which surrounds the assembly and which comprises on its internal wall (50), approximately in the middle, an annular rib (51). Dispositif selon la revendication 1 caractérisé en ce que les bords (100) des gorges (10) sont en retrait de la surface de l'embout (1).Device according to claim 1 characterized in that the edges (100) of the grooves (10) are set back from the surface of the end piece (1). Dispositif selon la revendication 1 ou la revendication 2, caractérisé en ce que la paroi interne (50) de la bague (5) comporte, en arrière de la saillie annulaire (51), une nervure hélicoidale (52) munie sur toute sa longueur d'une gorge (54) dans laquelle peut coulisser un téton (70) émergeant dudit embout (1) lorsque l'on tourne la bague (5) en vue de la faire avancer.Device according to claim 1 or claim 2, characterized in that the internal wall (50) of the ring (5) comprises, behind the annular projection (51), a helical rib (52) provided over its entire length d 'A groove (54) in which can slide a stud (70) emerging from said tip (1) when the ring (5) is rotated in order to advance it. Dispositif selon l'une des revendications précédentes, caractérisé en ce que les galets (2) comportent une gorge (21) destinée à épouser le contour de la surface de la queue de l'outil de travail.Device according to one of the preceding claims, characterized in that the rollers (2) have a groove (21) intended to follow the contour of the surface of the tail of the working tool.
EP95440091A 1994-12-23 1995-12-21 Device for the vibrationless quick coupling of a working tool shaft to a percussion apparatus Expired - Lifetime EP0718076B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9415732A FR2728496A1 (en) 1994-12-23 1994-12-23 ANTIVIBRATILE DEVICE FOR QUICKLY COUPLING THE TAIL FROM A WORKING TOOL TO A PERCUSSION APPARATUS
FR9415732 1994-12-23

Publications (2)

Publication Number Publication Date
EP0718076A1 true EP0718076A1 (en) 1996-06-26
EP0718076B1 EP0718076B1 (en) 2001-10-17

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ID=9470302

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95440091A Expired - Lifetime EP0718076B1 (en) 1994-12-23 1995-12-21 Device for the vibrationless quick coupling of a working tool shaft to a percussion apparatus

Country Status (5)

Country Link
US (1) US5669730A (en)
EP (1) EP0718076B1 (en)
AT (1) ATE206991T1 (en)
DE (1) DE69523267T2 (en)
FR (1) FR2728496A1 (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6688610B2 (en) * 2000-05-12 2004-02-10 Power Tool Holders Incorporated Chuck with quick change
US6533291B2 (en) 2001-02-14 2003-03-18 Power Tool Holders Incorporated Chuck having quick change mechanism
US6834864B2 (en) * 2001-10-24 2004-12-28 Power Tool Holders Incorporated Chuck having quick change mechanism
US7988674B2 (en) * 2006-10-30 2011-08-02 Medtronic, Inc. Externally releasable body portal anchors and systems
EP2112409A1 (en) * 2008-04-24 2009-10-28 Sila Holding Industriale Spa Device for disconnecting and reconnecting automatically two adjacent lengths of an elongated mechanical transmission member, such as a push-pull cable, a rod or a bar, particularly for use in motor vehicles
US9444197B2 (en) * 2012-03-19 2016-09-13 Holland Electronics, Llc Shielded and multishielded coaxial connectors
DE102021203064A1 (en) * 2021-03-26 2022-09-29 Robert Bosch Gesellschaft mit beschränkter Haftung Hand tool machine with a locking device
DE102021203063A1 (en) * 2021-03-26 2022-09-29 Robert Bosch Gesellschaft mit beschränkter Haftung Hand tool machine with a locking device

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3536132A1 (en) * 1985-10-10 1987-04-16 Bosch Gmbh Robert Tool holder
DE3930250A1 (en) * 1989-09-11 1991-03-14 Licentia Gmbh Adaptor and core-bit and centre-hole bit - are attached to hand-operated electric drill spindle
EP0427647A1 (en) * 1989-11-08 1991-05-15 Bidaux Marc S.A. Pneumatic percussive apparatus with exchangeable worktool

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2279146A (en) * 1941-04-12 1942-04-07 Lincoln Eng Co Coupler
US2461699A (en) * 1945-05-21 1949-02-15 Albert T Scheiwer Coupling
US2458088A (en) * 1945-12-29 1949-01-04 Aeroquip Corp Coupling
US2690918A (en) * 1953-12-07 1954-10-05 Pullman Vacuum Cleaner Corp Ball detent pipe coupling or the like
DE1115998B (en) * 1958-03-10 1961-10-26 Otto Bilz Plug-in coupling for hose lines under pressure
US3032359A (en) * 1958-05-05 1962-05-01 Crawford Fitting Co Quick connect coupling
US3302960A (en) * 1964-03-20 1967-02-07 Adolf L Herrmann Locking device with rolling detents
US3666300A (en) * 1970-03-26 1972-05-30 Parker Hannifin Corp Quick disconnect coupling
DE3063119D1 (en) * 1979-07-25 1983-06-16 Raoul Fremy Couplings for hoses and the like
GB2063991B (en) * 1979-11-26 1983-06-02 Lister R A Farm Equipment Ltd Releasable coupling
US5141355A (en) * 1989-03-22 1992-08-25 Star Lock Systems, Inc. Lock and release apparatus
US5398946A (en) * 1993-12-29 1995-03-21 Poly-Tech Industries Chuck having one-step lock and release

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3536132A1 (en) * 1985-10-10 1987-04-16 Bosch Gmbh Robert Tool holder
DE3930250A1 (en) * 1989-09-11 1991-03-14 Licentia Gmbh Adaptor and core-bit and centre-hole bit - are attached to hand-operated electric drill spindle
EP0427647A1 (en) * 1989-11-08 1991-05-15 Bidaux Marc S.A. Pneumatic percussive apparatus with exchangeable worktool

Also Published As

Publication number Publication date
FR2728496B1 (en) 1997-03-07
DE69523267D1 (en) 2001-11-22
US5669730A (en) 1997-09-23
DE69523267T2 (en) 2002-07-04
EP0718076B1 (en) 2001-10-17
FR2728496A1 (en) 1996-06-28
ATE206991T1 (en) 2001-11-15

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