CAMERA DOOR OPENING AND SHUTTING APPARATUS

摘要

PURPOSE: A camera door opening and shutting apparatus is provided to open and close an opening when a sliding door moves from one direction by the contraction of the first shaped memory alloy. CONSTITUTION: A sliding door(20) opens and closes an opening(11). One end of a first shaped memory alloy(30) is connected to one end of the sliding door. The other end of the first shaped memory alloy is connected to a base(10). If current is applied, the sliding door is straightly moved by the contraction of the first shaped memory alloy. An extension spring(40) pulls the sliding door from one direction.