Patent ID: 6916031
Filing Date: 2005-07-12
Classification: B60T,B62L,B62M

Abstract:
1. In a bicycle having a frame, an axle mounted on said frame, a rear wheel mounted on said axle, a crank shaft on said frame, said crank shaft having a pair of pedals wherein said crank shaft can be rotated by the movement of the rider's legs and feet, a chain drive between said crank shaft and said axle, and a one-way clutch wherein said crank shaft is drivingly engaged to said axle for rotation in only one direction, the improvement comprising a second drive between said axle and said crank shaft, said second drive imparting rotational force from said crank shaft to said axle independent of said chain drive, said second drive having reversing means for reversing a direction of rotation of said crank shaft with respect to a direction of rotation of said axle, and a manually operable clutch for selectively engaging and disengaging said second drive.