| 摘要 |
A freewheel having a first race 4 formed on a driving member, a second race 6 formed on a driven member and a locking element 12 interposed between the first and second races 4, 6. One of the races 4 has a wedge-shaped portion 8 upon which a locking element moves, and the other race 6 has a depression 14 formed in a surface thereof, the depression 14 being shaped to receive at least a portion of the locking element 12 when the locking element 12 is in an engaged position. The driven member is able to rotate freely when the locking element 12 is in a disengaged position, and the driving and driven members are engaged when the locking element 12 is in an engaged position in which the locking element 12 is jammed into the depression 14 by the wedge-shaped portion 8. |
