| 摘要 |
The invention relates to an actuator device for bidirectionally adjusting an actuating element, preferably in the form of a tappet, which is designed to interact with an actuating partner, comprising first actuating means with expansion means which have a magnetically active shape-memory alloy material and exert an actuating force, in particular a pushing force, on said actuating element in order to move the actuating element along a first adjusting direction, said expansion means carrying out an expansion that generates the actuating force in response to a first supply of current to first coil means, and comprising second actuating means which are paired with the actuating element and which are provided separately from the expansion means and the first coil unit, said second actuating means being designed to move the actuating element in a second adjusting direction opposite the first adjusting direction. According to the invention, the second actuating means form a drive which can be activated in response to an applied signal, in particular a second electric current supply, in order to move the actuating element in the second adjusting direction, said drive not having an expansion unit which interacts with the actuating element and which is made of a magnetically active shape-memory alloy material. |
