Actuator and retraction mechanism for force feedback exoskeleton
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United States of America Patent
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Nov 14, 2023
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N/A
app pub date -
Oct 8, 2021
filing date -
Oct 22, 2020
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Abstract
Improved actuator and retraction mechanisms for force feedback exoskeletons are described. An actuator assembly for a force-feedback exoskeleton comprising: a rotating body coupled to a tendon and to a spring, said spring configured to produce a torque on the rotating body; and a second body having a surface configured to apply a variable force to a surface of the rotating body by means of a membrane enclosing a volume fluidically coupled to at least one control valve and to a pressurized fluid source, wherein the volume enclosed by the membrane comprises: a first pressure state in which the rotating body contacts the second body; and a second pressure state in which the rotating body does not contact the second body.
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