Drive unit and mounting structure thereof
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United States of America Patent
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Aug 15, 2017
Grant Date -
Apr 14, 2016
app pub date -
Dec 8, 2015
filing date -
Oct 10, 2014
priority date (Note) -
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status (Latency Note)
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Abstract
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.
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