DRIVE UNIT AND MOUNTING STRUCTURE THEREOF

摘要

A drive unit includes a base member having an operation base having operation recesses in a front surface, a movable member that is disposed to be opposite to the base member and has operation projections to be inserted into the operation recesses in an opposed surface, and a shape memory alloy member that is disposed between the base member and the movable member and shrinks by heat generated by passing an electric current. In conjunction with the shrinkage of the shape memory alloy member by the passage of the electric current, the movable member is moved in a direction away from the base member. The base member has a fixed portion in its middle in a core axial direction of the shape memory alloy member, to fix the middle on a support member.

主权项

1. A drive unit comprising:
a base member having an operation base having one or more operation recesses in a front surface thereof; a movable member that is disposed to be opposite to the base member and has an operation projection to be inserted into the operation recess in an opposed surface thereof; and a string or strip of shape memory alloy member that is disposed between the base member and the movable member and shrinks by heat generated by passing an electric current, wherein the drive unit is configured such that the movable member is moved in a direction away from the base member in conjunction with the shrinkage of the shape memory alloy member by the passage of the electric current, and a fixed portion is provided in a middle of the base member in a core axial direction of the shape memory alloy member in order to fix the middle on a support member.