Parallel link mechanism, constant velocity universal joint, and link actuator
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United States of America Patent
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May 22, 2018
Issued Date -
N/A
app pub date -
Mar 11, 2016
filing date -
Nov 4, 2011
priority date (Note) -
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Abstract
A parallel link mechanism includes a proximal end side link hub; a distal end side link hub; and three or more link mechanisms that connect the distal end side link hub to the proximal end side link hub in a position-changeable fashion. Each of the link mechanisms has a trinodal structure. Each revolute pair of each of the link mechanisms includes one pair of pair constituent members connected to each other via a bearing. One of the pair constituent members is formed with a shaft portion fitted to an inner periphery of an inner ring of the bearing, and the other of the pair constituent members is formed with an annular inner face forming portion fitted to an outer periphery of an outer ring of the bearing.
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