EP0718076B1 - Dispositif antivibratile d'accouplement rapide de la queue d'un outil de travail a un appareil à percussion - Google Patents

Dispositif antivibratile d'accouplement rapide de la queue d'un outil de travail a un appareil à percussion Download PDF

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Publication number
EP0718076B1
EP0718076B1 EP95440091A EP95440091A EP0718076B1 EP 0718076 B1 EP0718076 B1 EP 0718076B1 EP 95440091 A EP95440091 A EP 95440091A EP 95440091 A EP95440091 A EP 95440091A EP 0718076 B1 EP0718076 B1 EP 0718076B1
Authority
EP
European Patent Office
Prior art keywords
ring
rollers
collar
groove
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.)
Expired - Lifetime
Application number
EP95440091A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0718076A1 (fr
Inventor
Marc Pierre Louis 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 SA
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 SA filed Critical Bidaux Marc SA
Publication of EP0718076A1 publication Critical patent/EP0718076A1/fr
Application granted granted Critical
Publication of EP0718076B1 publication Critical patent/EP0718076B1/fr
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 a device anti-vibration quick coupling of the tool shank working at a percussion device.
  • Percussion devices and particularly impact hammers are used in numerous areas of application for stripping, knocking and dig grooves in various materials.
  • These devices generally have a body of cylindrical shape comprising at one of its ends a quick locking and unlocking device the tail of a work tool whose active part varies depending on the type of application. So in the case of a tool intended for debarking or pickling, the tail of the work usually involves a turning its retention in the percussion device by means of organs stop.
  • Document EP-A-0,427,647 in the name of the Applicant, describes a percussion device comprising a generally tubular body comprising a nozzle extreme on which is adapted a coupling system of the tail of a work tool associated with a shock absorber shock and comprising three stop balls erasable by the controlled sliding of a threaded elastic return ring on the end cap, and an annular drawer, arranged internally at the end piece, bearing thrust balls retractable partially inserted in the turning practiced in the tail of the work tool, which come place themselves in the holes left free by erasing the stop balls, allowing the axial sliding of the tail of the work tool and therefore its extraction.
  • the known devices have the disadvantage of being blocked under the effect of deformation of certain parts due to wear: thus, for example, in the case of the device which has just been described, the balls always have a single point of contact with the rounded surface of the neck of the tail the working tool, can deteriorate said surface during back and forth movements made by the tool.
  • the object of the present invention is to remedy these disadvantages by proposing a coupling device greater reliability and simplified manufacturing, therefore lower cost and quick and easy maintenance, significantly improving the user comfort of the device percussion.
  • the coupling device object of the invention is essentially characterized in that it comprises on the one hand a cylindrical tip which extends the body of a percussion device forward and in which three longitudinal grooves are practiced regularly spaced angularly, in each which can move a roller with an axis whose ends are able to roll or slide around the edges of said groove; on the other hand a ring threaded on said tip, on which it can move longitudinally in being brought back against said rollers by means of a spring, said ring internally having a projection annular whose front face is flat and whose face rear is concave and partially envelops said rollers, the forward movement of said ring being able be made by means of a ring which surrounds the assembly and which has on its internal wall, approximately in its middle, an annular rib.
  • the annular rib of said ring has a vertical front face against which comes to rest on the rear edge of the ring and one side oblique rear helping to disengage the rollers of said ring when unlocking.
  • the ring which surrounds the assembly is provided, in back of said annular rib, a rib helical formed on part of its circumference internal, and a bore is drilled radially in the end piece behind the longitudinal grooves, in which bore is introduced a blocking piece which emerges from the nozzle and which abuts against said rib helical.
  • a coupling device comprises a end piece 1 of generally cylindrical shape, extending towards front 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 edges 100 slightly set back from the tip surface.
  • In the gorge 10 can be 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 coaxially secured, forward, at the end 40 of a spring 4 whose other end 41 is secured to a ring 8 abutting against a fixed retaining ring 80 at the front end of the end piece 1 under the thrust of the spring 4 also pushing towards the bottom of the gorges 10, on the ring 3 which surrounds the rollers 2 inserted partially in the concave face of the annular projection 30 of the ring 3.
  • a locking ring 5 envelope the assembly, allowing the displacement of the ring 3 towards the front.
  • an 11 'flyweight is engaged in a known manner in a bore in the body 10 ', being intended to strike, by pressure of a fluid, the shank 6 of a working tool, coupled to end piece 1 as can be seen in Figure 2 and having two polygonal parts 60 and 61 immobilizing angularly said shank of the tool 6 inside of tip 1 limited in translation over a stroke defined by a turning 62 into which the rollers 2 penetrate covered by the concave face of the annular projection 30 of the ring 3.
  • the rollers 2 advantageously include a groove 21 which follows the contour of the surface of the tail 6 in bar turning 62, avoiding, as is the case with current devices using balls, to deform the surface of said tool during its movements in front and in rear, under the effect of the counterweight 11 '.
  • the ring 5 is provided on its internal wall 50 with a projection annular 51 having a vertical face 510 against which abuts the vertical rear edge 31 of the ring 3 and an oblique rear face 511 helping to disengage rollers of said ring 3 during unlocking.
  • the internal wall 50 of the ring 5 comprises also, behind the annular projection 51, a helical rib 52 provided over its entire length with a groove 54 in which can slide, when turning the ring 5 for advancing it, the stud 70 with a screw with stud 7 screwed into a threaded bore 12 formed in the nozzle 1 behind the grooves 10, the stud 70 emerging tip 1.
  • Unlocking the tail of the tool work inserted in the device according to the invention is performed as follows: a rotation of the ring 5, of a half-turn for example, allows its sliding towards the front, via the nipple 70 and the groove helical 54, by pushing the ring 3 against the spring 4, which has the effect of freeing the rollers 2 from bar turning 62 of the tail 6 of the working tool.
  • the rollers 2 are move up in the space 53 delimited by the two ribs 51 and 52 of the ring 5, which allows remove the shank 6 from the tool of the percussion device end piece 1. Locking the tool shank is performed by the reverse maneuver.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Percussive Tools And Related Accessories (AREA)
  • Drilling Tools (AREA)
EP95440091A 1994-12-23 1995-12-21 Dispositif antivibratile d'accouplement rapide de la queue d'un outil de travail a un appareil à percussion Expired - Lifetime EP0718076B1 (fr)

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 EP0718076A1 (fr) 1996-06-26
EP0718076B1 true EP0718076B1 (fr) 2001-10-17

Family

ID=9470302

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95440091A Expired - Lifetime EP0718076B1 (fr) 1994-12-23 1995-12-21 Dispositif antivibratile d'accouplement rapide de la queue d'un outil de travail a un appareil à percussion

Country Status (5)

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

Families Citing this family (9)

* 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
US7766394B2 (en) * 2006-10-30 2010-08-03 Medtronic, Inc. Breakaway connectors 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
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
JP2024007799A (ja) * 2022-07-06 2024-01-19 株式会社マキタ ハンマドリル

Family Cites Families (15)

* 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
DE3536132A1 (de) * 1985-10-10 1987-04-16 Bosch Gmbh Robert Werkzeughalter
US5141355A (en) * 1989-03-22 1992-08-25 Star Lock Systems, Inc. Lock and release apparatus
DE3930250A1 (de) * 1989-09-11 1991-03-14 Licentia Gmbh Mit der arbeitsspindel einer handgefuehrten elektrowerkzeugmaschine vereinigbarer aufnahmeschaft
FR2654029B1 (fr) * 1989-11-08 1992-02-21 Bidaux Marc Appareil pneumatique de percussion a outil de travail amovible.
US5398946A (en) * 1993-12-29 1995-03-21 Poly-Tech Industries Chuck having one-step lock and release

Also Published As

Publication number Publication date
DE69523267T2 (de) 2002-07-04
US5669730A (en) 1997-09-23
FR2728496A1 (fr) 1996-06-28
FR2728496B1 (enExample) 1997-03-07
DE69523267D1 (de) 2001-11-22
EP0718076A1 (fr) 1996-06-26
ATE206991T1 (de) 2001-11-15

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