EP0718076A1 - Einrichtung zur vibrationslosen Schnellkupplung eines Arbeitswerkzeugschaftes an eine Schlagvorrichtung - Google Patents

Einrichtung zur vibrationslosen Schnellkupplung eines Arbeitswerkzeugschaftes an eine Schlagvorrichtung 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
Other languages
English (en)
French (fr)
Other versions
EP0718076B1 (de
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
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 BIDAUX MARC BIDAUX MARC SA, Bidaux Marc filed Critical BIDAUX MARC BIDAUX MARC SA
Publication of EP0718076A1 publication Critical patent/EP0718076A1/de
Application granted granted Critical
Publication of EP0718076B1 publication Critical patent/EP0718076B1/de
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.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Percussive Tools And Related Accessories (AREA)
  • Drilling Tools (AREA)
EP95440091A 1994-12-23 1995-12-21 Einrichtung zur vibrationslosen Schnellkupplung eines Arbeitswerkzeugschaftes an eine Schlagvorrichtung Expired - Lifetime EP0718076B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9415732 1994-12-23
FR9415732A FR2728496A1 (fr) 1994-12-23 1994-12-23 Dispositif antivibratile d'accouplement rapide de la queue d'un outil de travail a un appareil a percussion

Publications (2)

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

Family

ID=9470302

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95440091A Expired - Lifetime EP0718076B1 (de) 1994-12-23 1995-12-21 Einrichtung zur vibrationslosen Schnellkupplung eines Arbeitswerkzeugschaftes an eine Schlagvorrichtung

Country Status (5)

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

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 (de) * 2008-04-24 2009-10-28 Sila Holding Industriale Spa Verfahren zum automatischen Trennen und Verbinden zweier benachbarter und zu einer mechanischen Übertragungseinheit gehörenden Bauteillängen, die in Form eines Bowdenzugs, einer Stange oder eines Stabes vorliegen, insbesondere für die Verwendung in Kraftfahrzeugen
US9444197B2 (en) * 2012-03-19 2016-09-13 Holland Electronics, Llc Shielded and multishielded coaxial connectors
DE102021203063A1 (de) * 2021-03-26 2022-09-29 Robert Bosch Gesellschaft mit beschränkter Haftung Handwerkzeugmaschine mit einer Verriegelungseinrichtung
DE102021203064A1 (de) * 2021-03-26 2022-09-29 Robert Bosch Gesellschaft mit beschränkter Haftung Handwerkzeugmaschine mit einer Verriegelungseinrichtung

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3536132A1 (de) * 1985-10-10 1987-04-16 Bosch Gmbh Robert Werkzeughalter
DE3930250A1 (de) * 1989-09-11 1991-03-14 Licentia Gmbh Mit der arbeitsspindel einer handgefuehrten elektrowerkzeugmaschine vereinigbarer aufnahmeschaft
EP0427647A1 (de) * 1989-11-08 1991-05-15 Bidaux Marc S.A. Pneumatischer Schlagapparat mit auswechselbarem Arbeitswerkzeug

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 (de) * 1958-03-10 1961-10-26 Otto Bilz Steckkupplung fuer unter Druck stehende Schlauchleitungen
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 (de) * 1985-10-10 1987-04-16 Bosch Gmbh Robert Werkzeughalter
DE3930250A1 (de) * 1989-09-11 1991-03-14 Licentia Gmbh Mit der arbeitsspindel einer handgefuehrten elektrowerkzeugmaschine vereinigbarer aufnahmeschaft
EP0427647A1 (de) * 1989-11-08 1991-05-15 Bidaux Marc S.A. Pneumatischer Schlagapparat mit auswechselbarem Arbeitswerkzeug

Also Published As

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

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