| 摘要 |
A long, cylindrical rubber body (16) is enclosed within a tightly wound coil spring (15) and on its short sides by an axially fixed, torque-receiving end wall (12) and an axially movable, force-transmitting cover (17) respectively. One of the ends of the spring accompanies the end wall as it rotates, in so doing causing the diameters of the spring and the rubber body to reduce and the length of the body to increase. |
