SHAPE MEMORY ALLOY ACTUATOR UNIT CAPABLE OF REDUCING WEIGHT WHICH A WEARER FEELS BY BROADENING THE DISTRIBUTION OF THE ACTUATOR AND A JOINT ASSIST DEVICE INCLUDING THE SAME
PURPOSE: A SMA(Shape Memory Alloy) actuator unit capable of reducing weight which a wearer feels by broadening the distribution of the actuator and a joint assist device including the same are provided to implement an actuator which has flexible and strong pulling strength by combining a SMA wire and a Bowden cable.CONSTITUTION: A SMA actuator unit(10) includes a SMA wire(20), a Bowden cable(30), and a Teflon cable(40). The SMA wire is formed by a shape memory alloy. The Bowden cable covers around the SMA wire. The Teflon cable is arranged between the SMA wire and the Bowden cable.COPYRIGHT KIPO 2013본 발명의 일 실시 예에 따른 SMA 액추에이터 유닛은, 형상기억합금(Shape Memory Alloy)으로 이루어지는 SMA 와이어, 상기 SMA 와이어를 둘러싸는 보덴 케이블, 및 상기 SMA 와이어와 보덴 케이블 사이에 구비되는 테프론 케이블을 포함하는 것을 특징으로 한다.
