EP 0329852 B1 19930811 - POWERED WRENCH
Title (en)
POWERED WRENCH
Publication
Application
Priority
DE 3801972 A 19880123
Abstract (en)
[origin: EP0329852A2] The powered wrench has a coupling (14) which switches as a function of the torque and switches over between fast motion and load motion when the output torque exceeds a limiting value. A distributing shaft (23) drives two drive gears (26, 27) simultaneously. The output shaft (28) is carried along by a coupling part (32) which can be coupled to each of the drive gears (26, 27). The coupling part (32) is prestressed by a spring (38) in the direction of the first drive gear (26). When the limiting torque is reached, the guide element (40) moves along the guide surface (39). As a result, the coupling part (32) is axially moved so as to be released from the first drive gear (26) and coupled to the second drive gear (27). <IMAGE>
IPC 1-7
IPC 8 full level
B25B 21/00 (2006.01); B25B 23/14 (2006.01); B25B 23/157 (2006.01)
CPC (source: EP US)
B25B 21/008 (2013.01 - EP US); B25B 23/14 (2013.01 - EP US)
Designated contracting state (EPC)
DE ES FR GB IT SE
DOCDB simple family (publication)
EP 0329852 A2 19890830; EP 0329852 A3 19900905; EP 0329852 B1 19930811; DE 3801972 A1 19890803; DE 3883205 D1 19930916; ES 2042703 T3 19931216; JP 2867031 B2 19990308; JP H01234175 A 19890919; US 4966057 A 19901030
DOCDB simple family (application)
EP 88121554 A 19881223; DE 3801972 A 19880123; DE 3883205 T 19881223; ES 88121554 T 19881223; JP 1097089 A 19890119; US 50709490 A 19900409