| 摘要 |
The present invention pertains to an actuator having a unique universal-type joint assembly incorporated therein. The actuator comprises a stationary member and a movable member mounted for movement with respect to the stationary member. The actuator further comprises a first drive means, such as a drive screw, and linkage means connects the first drive means to the stationary member and provides universal-type movement. The linkage means includes a substantially non-torque-absorbing thrust transmitting element. A second drive means, such as a drive nut, is threadedly connected to the drive screw for reciprocation therealong and is also connected to the movable member of the actuator. |
