| 摘要 |
<p>A multi-part drive shaft for a transit vehicle door comprises an upper drive shaft connected to a door operating mechanism and having a door panel operating arm extending therefrom, a lower drive shaft journaled for rotation, a door panel operating arm extending therefrom and a flexible drive shaft secured at one end to the upper drive shaft and at the other end to the lower drive shaft. Rotation of the upper drive shaft will transfer torque to the lower drive shaft at the same angular speed.</p> |
