Link actuating device
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United States of America Patent
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Feb 2, 2016
Grant Date -
Aug 1, 2013
app pub date -
Oct 3, 2011
filing date -
Oct 14, 2010
priority date (Note) -
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Abstract
A link actuating device connects an output member to an input member through three or more link mechanisms for alteration in posture. Each of the link mechanisms includes end portion link members on input and output sides, and an intermediate link member. The link mechanisms are of such shapes that geometric models representing the link members by straight lines are such that input and output side portions are symmetrical to each other relative to an intermediate portion of each of the intermediate link members. Immobilizing mechanisms are provided in all of the link mechanisms to immobilize the output member in an arbitrary attitude relative to the input member. A structure body is provided to connect the input and output member to each other while being in contact with contacted portions formed in the input and output member.
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