EP 0671243 A1 19950913 - Torque wrenches.
Title (en)
Torque wrenches.
Title (de)
Drehmoment-Schraubenschlüssel.
Title (fr)
Clés dynomométriques.
Publication
Application
Priority
GB 9403995 A 19940302
Abstract (en)
A torque wrench (100; 300; 500) having an improved arrangement (102; 302; 502) for indicating the achievement of a preselected maximum torque. When the maximum torque is reached, the torque wrench 'breaks' into a zero-torque mode and is subsequently re-set without needing reverse movement. The improvement comprises providing a dead-band or range of handle movement in the zero-torque mode which is easily recognised by the operator. The arrangement preferably has the form of a cam (118; 518) having one or more lands (126) of constant radius to provide the dead-band. The torque wrench may also have a torque setting lock (160, 194, 200) which can be selectively operated either to allow the maximum torque setting to be adjusted or to prevent the torque setting being altered. <IMAGE>
IPC 1-7
IPC 8 full level
B25B 23/142 (2006.01)
CPC (source: EP)
B25B 23/1427 (2013.01)
Citation (search report)
- [XA] DE 820275 C 19511108 - ALBERT THODE & CO
- [X] CH 275537 A 19510531 - KEEN FRANK LESLIE [GB]
- [XA] US 1860871 A 19320531 - POULIOT WILFRED A
- [X] FR 1026297 A 19530427
- [X] FR 60778 E 19550126
- [XY] GB 767366 A 19570130 - JEAN DUBERNET
- [PYA] WO 9405463 A1 19940317 - SANDVIK AB [SE], et al
- [A] EP 0274576 A2 19880720 - CONS DEVICES [US]
- [A] US 4485703 A 19841204 - GRABOVAC BOSKO [US], et al
- [DA] GB 1249590 A 19711013 - M H H ENGINEERING COMPANY LTD
Designated contracting state (EPC)
DE FR GB IT
DOCDB simple family (publication)
DOCDB simple family (application)
EP 95301217 A 19950224; GB 9403995 A 19940302