Annular spring, and torque detecting device and robot joint mechanism using the annular spring
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United States of America Patent
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Jun 12, 2018
Issued Date -
May 12, 2016
app pub date -
Nov 3, 2015
filing date -
Nov 12, 2014
priority date (Note) -
In Force
status (Latency Note)
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Abstract
An elastic section 13 is configured by a first elastic section 13a that has one end connected to an outer circumferential surface of an inner circumferential section 12, and the other end connected to an inner circumferential surface of an outer circumferential section 11, and a second elastic section 13b that is symmetrical to the first elastic section 13a about a line that passes through a center point P1 of the inner circumferential section 12 and a connection point P2 of the inner circumferential section 12 and the first elastic section 13a. When the outer circumferential section 11 and the inner circumferential section 12 relatively rotate, the first elastic section 13a and the second elastic section 13b are elastically deformed in such a manner that one is compressed and the other is stretched.
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