Land vehicles – Wheeled – Occupant propelled type
Patent
1987-01-23
1988-05-03
Love, John J.
Land vehicles
Wheeled
Occupant propelled type
280261, 474 52, B62M 908, F16H 910
Patent
active
047415460
ABSTRACT:
An automatic transmission for use on a bicycle is mounted on a bracket that is connected to the rear axle of the bicycle. A first chain connects the chain wheel with a sprocket fixed for rotation with the drive pulley of the transmission. A second chain transmits power from a sprocket fixed for rotation with the driven pulley to the rear wheel hub sprocket. A V-belt is used to transmit power between the drive and driven pulleys. Once a predetermined input torque is reached during pedalling, the transmission automatically changes the speed ratio between the chain wheel and the driven rear wheel of the bicycle. The gear ratio continues to change automatically and steplessly in response to increasing torque through the entire range of gear ratio change, which is approximately equal to the range provided by a standard ten speed bicycle.
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Love John J.
McGiehan Donn
LandOfFree
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