EP 0718076 B1 20011017 - Device for the vibrationless quick coupling of a working tool shaft to a percussion apparatus
Title (en)
Device for the vibrationless quick coupling of a working tool shaft to a percussion apparatus
Title (de)
Einrichtung zur vibrationslosen Schnellkupplung eines Arbeitswerkzeugschaftes an eine Schlagvorrichtung
Title (fr)
Dispositif antivibratile d'accouplement rapide de la queue d'un outil de travail a un appareil à percussion
Publication
Application
Priority
FR 9415732 A 19941223
Abstract (en)
[origin: EP0718076A1] 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.
IPC 1-7
IPC 8 full level
B25D 17/08 (2006.01)
CPC (source: EP US)
B25D 17/08 (2013.01 - EP US); Y10S 403/04 (2013.01 - EP US); Y10T 403/59 (2015.01 - EP US); Y10T 403/599 (2015.01 - EP US)
Designated contracting state (EPC)
AT BE CH DE ES IT LI
DOCDB simple family (publication)
EP 0718076 A1 19960626; EP 0718076 B1 20011017; AT E206991 T1 20011115; DE 69523267 D1 20011122; DE 69523267 T2 20020704; FR 2728496 A1 19960628; FR 2728496 B1 19970307; US 5669730 A 19970923
DOCDB simple family (application)
EP 95440091 A 19951221; AT 95440091 T 19951221; DE 69523267 T 19951221; FR 9415732 A 19941223; US 57677195 A 19951221