Compact parallel eccentric rotary actuator
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United States of America Patent
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-
Mar 13, 2018
Grant Date -
Mar 31, 2016
app pub date -
Sep 29, 2015
filing date -
Sep 29, 2014
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A rotary actuator (101) is provided which includes a crankshaft (103), first and second eccentric gears (121), first and second end plates (123), a first crosslink (117) which is disposed between the first eccentric gear and the first end plate, a second crosslink which is disposed between the second eccentric gear and the second end plate, a stator (113) disposed between the first and second eccentric gears, and a rotor (109). Preferably, the rotary actuator further includes first and second support plates (115) which are disposed concentrically about the crankshaft and which are attached to first and second surfaces of the stator, respectively. The foregoing configuration allows the stator to serve as a major structural element, which may enhance the stiffness and reduce the weight of the actuator, while simplifying many of its active components.
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