EP 0164574 A3 19871216 - SCREW DRIVING DEVICE
Title (en)
SCREW DRIVING DEVICE
Publication
Application
Priority
DE 8414766 U 19840515
Abstract (en)
[origin: US4648282A] A power screwdriver or nutsetter has an output shaft provided with a torque measuring transducer and a shaft rotation angle transducer mounted thereon. Tool output torque or final turning of a screw or nut can be measured directly and transmitted to a control unit through a shaft mounted slipring assembly. In one embodiment a bevel gear drive is connected to the output shaft and a force measuring transducer is mounted between the shaft and the tool housing for measuring gear reaction forces corresponding to tool output torque.
IPC 1-7
IPC 8 full level
B25B 23/14 (2006.01); B25B 23/145 (2006.01)
CPC (source: EP US)
B25B 23/1456 (2013.01 - EP US); B25B 23/147 (2013.01 - EP US)
Citation (search report)
- [X] DE 2721940 A1 19781123 - GKN FASTENERS LTD
- [A] US 3572447 A 19710330 - PAULEY REGINALD W, et al
- [A] FR 2179290 A5 19731116 - MACO MEUDON SA [FR]
- [A] DE 2020503 A1 19710114 - GARDNER DENVER CO
- [A] US 4084429 A 19780418 - BOLAND JOHN GORDON
- [A] DE 3216773 A1 19831110 - VOLKSWAGENWERK AG [DE], et al
- [A] GB 1581101 A 19801210 - GKN FASTENERS LTD
- [A] US 3474503 A 19691028 - LESS JOSEPH W
- [A] US 3813933 A 19740604 - WEISS L, et al
- [A] PATENT ABSTRACTS OF JAPAN, Band 6, Nr. 108 (P-123)[986], 18. Juni 1982; & JP-A-57 40 624 (HONDA GIKEN KOGYO K.K.) 06-03-1982
Designated contracting state (EPC)
DE FR GB IT SE
DOCDB simple family (publication)
EP 0164574 A2 19851218; EP 0164574 A3 19871216; EP 0164574 B1 19911127; DE 3584736 D1 19920109; DE 8414766 U1 19840913; US 4648282 A 19870310
DOCDB simple family (application)
EP 85105627 A 19850508; DE 3584736 T 19850508; DE 8414766 U 19840515; US 73301185 A 19850510