Soft Mechanism by using a Sponge-Core-Soft-Rubber Actuator for Welfare Machines

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  • Hayakawa Yasuhiro
    Department of Electrical and Control Engineering Nara National College of Technology
  • Ueda Naoyoshi
    Department of Electrical and Control Engineering Nara National College of Technology
  • Hirota Shogo
    Department of Electrical and Control Engineering Nara National College of Technology
  • Pandian Shunmugham Raj
    Department of Electrical Engineering and Computer Science Department Tulane University

Abstract

In care activity or rescue activity, hands that can grasp creatures are sometimes needed. Therefore, it is considered that the soft mechanism that uses pneumatic elements is useful to realize such hands. In this paper, we propose a new type of soft actuator (Sponge-Core-Soft Rubber Actuator) in which a sponge rubber is covered with silicon rubber. The structure of the sponge rubber is divided into two types. One is single-layer type and the other is two-layer type (a flat type and a clipping type). In order to clarify the differences in characteristics of each actuator, we examine the basic characteristics of the actuators. Further, the control performances of both position and force are studied to realize a hybrid element. From some experimental results, the control performance of the two layers type actuator is illustrated.

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