SMA ACTUATOR UNIT, AND ARTICULATION ASSISTANCE DEVICE HAVING THE SAME

摘要

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.