| 摘要 |
PCT No. PCT/NO92/00130 Sec. 371 Date Apr. 13, 1994 Sec. 102(e) Date Apr. 13, 1994 PCT Filed Aug. 14, 1992 PCT Pub. No. WO93/03955 PCT Pub. Date Mar. 4, 1993A bicycle pedal assembly includes a pedal axle to be fixed to a bicycle crank arm and rotated by a foot of a cyclist in a direction of drive rotation. A pedal on the pedal axle has a length to extend beneath substantially the entire foot of the cyclist. The pedal includes a portion to support the ball of the foot of the cyclist, such portion being positioned substantially directly above the pedal axle. The pedal also includes at a rear end thereof a heel attaching arrangement to achieve attachment of the rear end of the pedal to the heel of the foot of the cyclist. Mounted between the pedal and the pedal axle is a freewheel device that enables free rotating of the pedal relative to the pedal axle in a direction opposite to the direction of drive rotation, while blocking rotation of the pedal relative to the pedal axle in a direction corresponding to the direction of drive rotation. As a result, during an up pedalling phase, the freewheel device and creates a moment arm extension resulting in an increased upward pulling force during the up pedalling phase. |
