| 摘要 |
<p>PURPOSE:To make the adjustment of assembling easy and to reduce the size of the titled device by using a heat resisting element consisting of a shape storage alloy as a lever driving source and heating and controlling the heat responding element directly by current supply or the like. CONSTITUTION:If current is supplied between electrodes 21a, 21b of a heat responding element 3 e.g. to be actuated out of heat responding elements 3-5 and heat is generated, the heat responding element 3 can be restored up to a rectangularly bent working position by shape restoring force based upon martensite reverse transformation. If the point of the heat responding element 3 is engaged with a ratchet mechanism 10 or the like, a clatch is disconnected and e.g. motor driving is controlled. If current supply is stopped and the temperature is reduced, the heat responding element 3 is returned to the original martenside phase and restored to a non-operating position by the repulsing force of a return spring 15. Thus, the adjustment of assembling of the device is made easy and the side of the device can be reduced.</p> |
