Driving Characteristics and Stiffness Evaluation of a Stretchable Actuator Using Metallic Tape and Coil Spring

Abstract

With the recent proliferation of tabletop robot arms, there is a growing demand for compact and highly functional actuators. This research group has developed a telescopic actuator using a convex spring and a coil spring with a stroke that exceeds the size of the main body. However, the drive characteristics of this mechanism and the durability of the telescopic part are unknown. Therefore, the purpose of this study is to measure the driving characteristics of the telescopic actuator and conduct experiments to clarify the bending rigidity and buckling load of the telescopic part to evaluate its rigidity.