| 摘要 |
Actuator comprising of a quick release unit and a means for determining the position of an activation element. With the quick release unit it is possible to release the activation element from the actuator's electric motor and the transmission or, at least part of it, to make a rapid adjustment to the activation element without the motor and transmission. The means typically used for determining the position of the activation element comprises of a potentiometer, an optical or magnetic encoder indirectly driven by the motor. By connecting the instrument for position determination (33) to the spindle (2) or the part of the transmission between the quick release and the spindle (2), the position of the activation element remains known regardless of whether it is released or connected, or has been released. |
