EP 0328799 B1 19930811 - VARIABLE TORQUE DRIVER TOOL
Title (en)
VARIABLE TORQUE DRIVER TOOL
Publication
Application
Priority
EP 88300825 A 19880201
Abstract (en)
[origin: EP0328799A2] A hand-squeeze driver tool which serves to convert squeezing motion into rotary motion on a variable torque basis, with the torque being inversely related to the driving speed. The torque versus driving speed relationship is determined by the position of a squeeze lever (41) as it is displaced from its most extended position. Two distinct zones are provided as the squeeze lever is so displaced, namely a high torque low speed zone, and a low torque high speed zone. The provision of the high torque low speed initial zone, followed by the low torque high speed zone permits the operator intuitively to take advantage of the variable torque feature of the invention, which is provided by a traveling fulcrum which dwells at position F1 and F2 defined by sharp angles in levers (41,53).
IPC 1-7
IPC 8 full level
B25B 13/46 (2006.01); B25B 15/04 (2006.01); B25B 15/06 (2006.01); B25B 23/16 (2006.01); B25F 5/00 (2006.01)
CPC (source: EP)
B25B 13/461 (2013.01); B25B 15/04 (2013.01); B25B 15/06 (2013.01); B25B 23/16 (2013.01)
Designated contracting state (EPC)
AT BE CH DE ES FR GB GR IT LI LU NL SE
DOCDB simple family (publication)
EP 0328799 A2 19890823; EP 0328799 A3 19900110; EP 0328799 B1 19930811; AT E92828 T1 19930815; DE 3883203 D1 19930916; DE 3883203 T2 19940317
DOCDB simple family (application)
EP 88300825 A 19880201; AT 88300825 T 19880201; DE 3883203 T 19880201