ACTUATOR

摘要

[PROBLEMS] To provide an actuator using an artificial muscle in which the shape of an elastically shape-changeable member can be changed without being limited by the electrode and the film forming the electrode hardly wrinkles and cracks when the shape of the shape-changeable member changes. [MEANS FOR SOLVING PROBLEMS] The interface between a movable electrode (3) and an elastically shape-changeable member (4) is treated to enhance the slide by reducing the frictional resistance, and stress control parts (4a, 4a) whose thickness dimensions are reduced are provided to part of the elastically shape-changeable member (4). Thanks to the surface treatment, the shape change of the elastically shape-changeable member is not limited by the electrode. The change of the shape starts at the stress control parts (4a, 4a) and thus a film (6) forming the moveable electrode (3) hardly wrinkles and cracks.