| 摘要 |
<p>An actuator unit comprises a tube spring (32), a piezoelectric actuator (31) that is inserted into the tube spring (32), a first cap (33), that is connected to the tube spring (32) at a first free end (34) of the tube spring (32) and that is adjoined by the piezoelectric actuator (31), and a second cap (36), that is connected to the tube spring (32) at a second free end (35) of the tube spring (32) and that is adjoined by the piezoelectric actuator (31). The first and/or the second cap (33, 36) has a recess (3331, 361) into which a ball (332, 362) is inserted, that projects outwards from the first and/or the second cap (33, 36) on the side that is facing away from the piezoelectric actuator (31) and forms a contact for an element. <IMAGE></p> |
