BICYCLE STEPLESS TRANSMISSION

摘要

FIELD: transport.SUBSTANCE: invention relates to bicycle rear wheel variators. Variator has discs 4, 5 that stay in direct friction contact. One of said discs is tapered disc. Surfaces of said discs converge at acute angle. Driven sp[rocket 10 is fitted on hollow shaft 8 to transmit torque to drive disc 5 and presses the latter to driven disc 4 fitted on wheel hub 2 of overrunning coupling 3. Control cables 20 displace sliding disc 14 with hollow shaft 8 and driven and drive discs 10 and 5, respectively, fitted thereon. This allows drive disc 5 to displace relative driven disc 4 with stepless variation of gear ratio. Variator can be uncased for protection against ambient effects.EFFECT: reduced weight.2 cl, 6 dwg