EP 0744374 A3 19971105 - Multi-speed winch with constant mesh gearing system
Title (en)
Multi-speed winch with constant mesh gearing system
Title (de)
Winde mit mehreren Gängen und dauerend ineinandergreifenden Zahnrädern
Title (fr)
Treuil à plusieurs rapports et pignont constamment en prise
Publication
Application
Priority
US 44727595 A 19950522
Abstract (en)
[origin: EP0744374A2] A constant mesh gearing system for a multi-speed winch (10) which allows shifting of gear ratios for varying operating properties. The gearing system incorporates at least two different sized crank gears (32,34) coaxially mounted to a crankshaft (28). Each of the crank gears (32,34) are in constant mesh engagement with drive gears (54,56) mounted to a drive shaft (50). The other end of the drive shaft (50) includes a ratchet gear (58) drivably engaging the winch drum (18). A ratchet pawl (62) with a standoff link (66) locks the ratchet gear (58) against rotation in one direction. Upon cranking the standoff forces the pawl (62) away from the ratchet gear (58) for noiseless cranking of the winch (10). The crankshaft (28) of the winch (10) is longitudinally shiftable to selectively engage either of the crank gears (32,34). The shaft (28) includes detents (44) engageable by a spring-biased ball bearing (46) to prevent inadvertent longitudinal movement of the crankshaft (28). The crankshaft (28) also includes a drive tooth (40) selectively engageable with the crank gears (32,34). Upon longitudinal shifting of the crankshaft (28), different gear ratios may be selected for operation of the winch (10). <IMAGE>
IPC 1-7
IPC 8 full level
B66D 1/04 (2006.01)
CPC (source: EP)
B66D 1/04 (2013.01)
Citation (search report)
- [A] GB 2127917 A 19840418 - SOUTHAM ERIC
- [A] US 4566674 A 19860128 - EBEY EDWARD [US], et al
- [A] CH 115994 A 19260916 - DENZLER & BURKHARDT [CH]
- [A] SU 1754634 A1 19920815 - MOGILEVSKIJ MASH [SU]
- [A] SU 1759784 A1 19920907 - UK NII STANKOV INSTR [SU]
Designated contracting state (EPC)
AT BE CH DE DK ES FI FR GB IT LI NL SE
DOCDB simple family (publication)
EP 0744374 A2 19961127; EP 0744374 A3 19971105; CA 2174918 A1 19961123; ZA 964094 B 19961203
DOCDB simple family (application)
EP 96107297 A 19960508; CA 2174918 A 19960424; ZA 964094 A 19960522