| 摘要 |
PROBLEM TO BE SOLVED: To improve responsivity at the time of shifting a motion direction by preventing both shape memory alloys from acting shape recovery force each other, even when both shape memory alloys are in a state simultaneously generating shape recovery force. SOLUTION: When a first shape memory alloy 9 generates shape recovery force, an operating end member 6 is moved in a first direction, and on the other hand, when a second shape memory alloy 11 generates shape recovery force, the operating end member 6 is moved in a second direction opposite to the first direction. Springs 25, 26 are connected to the operating end member 6, and when both shape memory alloys 9, 11 are in a state simultaneously generating the shape recovery force, the spring 25 or the spring 26 is deformed to move the operating end member 6 in the first or second direction.
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