EP 0314106 A3 19900124 - RATCHET WRENCH
Title (en)
RATCHET WRENCH
Publication
Application
Priority
DE 3736109 A 19871026
Abstract (en)
[origin: EP0314106A2] A ratchet wrench, having a sprocket which is able to rotate in only one direction in a jaw-type wrench head by way of a ratchet mechanism and exhibits jaws, possesses a pair of movable engaging members which engage in two regions, spaced apart and thereby bridging the gap between the jaws, of a rotating ring arranged on the sprocket and which, when moved, cause a rotation of the sprocket counter to the locking action of the ratchet mechanism. The engaging members and the rotating ring are preferably constructed as pawls/pawl toothing or as toothed wheels. This facilitates the rotation of the sprocket, necessary for removing the ratchet wrench from screw connections whose threaded ends are not free, until the jaws of the sprocket and the jaws of the wrench head are located one above the other and the tool can be removed radially. <IMAGE>
IPC 1-7
IPC 8 full level
B25B 13/46 (2006.01)
CPC (source: EP)
B25B 13/46 (2013.01); B25B 13/463 (2013.01); B25B 13/467 (2013.01)
Citation (search report)
- [X] US 2578686 A 19511218 - FISH HERBERT L
- [A] DE 710248 C 19410908 - JOSEF SIEFFERT
- [A] WO 8304208 A1 19831208 - WALLIS FREDERICK A
- [A] BE 898741 A 19840724 - FOLIE JEAN CLAUDE
- [X] WO 8304207 A1 19831208 - PAUL DENNIS JOHN [US]
- SOVIET INVENTIONS ILLUSTRATED, Woche C45, 17. Dezember 1980, Sektion P62, Nr. K8537, Derwent Publications Ltd, London, GB; & SU-A-724 331 (MILOSERDOV V P) 30-03-1980 1977
Designated contracting state (EPC)
DE FR GB IT
DOCDB simple family (publication)
EP 0314106 A2 19890503; EP 0314106 A3 19900124; DE 3736109 C1 19890302
DOCDB simple family (application)
EP 88117846 A 19881026; DE 3736109 A 19871026