| 摘要 |
<p>An actuator assembly 10 including a gear wheel in the form of a worm wheel 12, an energy storage means in the form of a spiral spring 14, a detent in the form of a pawl 16, an actuator in the form of a motor 18 and an actuator assembly body 20. Motor 18 is mounted on body 20 and includes a motor shaft 22 drivingly coupled to a pinion 24. Pinion 24 drivingly engages teeth 26 of the worm wheel 12. The motor 18 is operable to apply a force in a first direction to drive the pawl 16 in the first direction from a rest condition of the actuator assembly 10 to an actuated condition, and is also operable to apply a force in a second direction to drive the pawl 16 in the second direction from the actuated condition to the rest condition. The motor acts to provide stored energy in the spiral spring 14, the release of which assists the movement of the pawl 16 in the first direction with the actuator assembly 10 in the rest condition.</p> |
