Title (en)

AN IMPACT WRENCH

Publication

EP 0149874 A3 19850821 (EN)

Application

EP 84300071 A 19840105

Priority

EP 84300071 A 19840105

Abstract (en)

[origin: EP0149874A2] An impact wrench for using fastening or unfastening fasteners comprises a cylindrical rotor coupled to a motor shaft, said cylindrical rotor including a projection on its inner surface, the projection having a circumferential width and an axial length; an anvil coupled to said cylindrical rotor, the anvil including a hammer member capable of rocking therein, the hammer member being engageable with said projection; a springloaded pusher for urging said hammer member towards said projection, wherein a spring support slides either on a deep cam face or a shallow cam face both produced on said inner surface of the cylindrical rotor, thereby allowing said spring to become compressed or relaxed against said hammer member.

IPC 1-7

B25B 21/02

IPC 8 full level

B25B 21/02 (2006.01)

CPC (source: EP)

B25B 21/026 (2013.01)

Citation (search report)

• [A] FR 2498510 A1 19820730 - KUKEN KK [JP]
• [A] DE 2216497 A1 19721019
• [A] DE 958280 C 19570214 - DEMAG DRUCKLUFTTECH

Designated contracting state (EPC)

DE FR GB IT SE

DOCDB simple family (publication)

EP 0149874 A2 19850731; EP 0149874 A3 19850821; EP 0149874 B1 19880323; DE 3470010 D1 19880428

DOCDB simple family (application)

EP 84300071 A 19840105; DE 3470010 T 19840105