| 摘要 |
Improvements in torque transmitting wheels are disclosed. The improvements afford more balanced torque transmission as between the proximal spokes, adjacent to a torque transmitting member, such as a sprocket, sprocket cluster or disc for a brake, and the distal spokes which are opposite from the torque transmitting member. A wheel according to the present invention is provided with radially oriented proximal spokes and tangentially oriented distal spokes. This shifts the majority of the torque transmission task to the distal spokes which, in a torque transmitting wheel, are under less tension than proximal spokes under static conditions. A torque transmitting member is mounted on the hub, adjacent the proximal hub flange, and the distance from the proximal hub flange to a plane through the proximal edge of the rim is substantially less than the corresponding distance from the distal hub flange. The torque transmitting member is mounted so that, when it is rotated in a first direction, the rotation is always transmitted to the hub. A plurality of the spoke members radially connect the rim to the proximal hub flange while a second plurality thereof tangentially connect the rim to the distal hub flange so that more of any torque applied to the torque transmitting member is transmitted through the tangentially oriented, distal spoke members than through the radially oriented, proximate spokes.
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