EP 1107901 A1 20010620 - WORM WHEEL TRANSMISSION
Title (en)
WORM WHEEL TRANSMISSION
Title (de)
SPIRALSCHEIBENGETRIEBE
Title (fr)
TRANSMISSION SNEK
Publication
Application
Priority
- NL 9900532 W 19990826
- NL 1009960 A 19980828
Abstract (en)
[origin: WO0012378A1] The invention concerns a variable transmission, particularly for human powered vehicles, by means of at least one Snek (snail wheel) (14) which exists of a drum with on it a non cylindric, in most cases more or less conical helicoidally shaped guiding path an d a cable like means of propulsion which rolls on and off said guiding path with the charateristic that the length of said guidingpath is substantially larger than the maximum stroke of the back and forth going means of propulsion and that a shifting mechanism(15) can alter the part of the Snek (14) where the means of propulsion is rolling on and off and thus change the gear ratio due tothe non cylindric shape of the Snek (14).
IPC 1-7
IPC 8 full level
CPC (source: EP)
B62M 1/16 (2013.01); B62M 1/28 (2013.01); B62M 9/04 (2013.01)
Citation (search report)
See references of WO 0012378A1
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
DOCDB simple family (publication)
WO 0012378 A1 20000309; AU 5534599 A 20000321; EP 1107901 A1 20010620; NL 1009960 C2 20000229
DOCDB simple family (application)
NL 9900532 W 19990826; AU 5534599 A 19990826; EP 99941870 A 19990826; NL 1009960 A 19980828