Variable Stiffness Actuator

Stefano Stramigioli (Inventor), Stefan Sebastiaan Groothuis (Inventor)

    Research output: Patent


    The invention relates to a coupling system for transmitting torque around a central axis of the coupling system, wherein the coupling system comprises; - a stator, - a hypocycloid transmission system rotatably supported by the stator, - an output member for transmitting torque, which output member is rotatably coupled with the stator through the hypocycloid transmission system, wherein, the hypocycloid transmission system comprises a planetary wheel member provided with a drive cam, the output member comprises a bending member at one end thereof coupled with the output member at an outer circumference thereof which bending member extends from the outer circumference of the output member towards the central axis, the drive cam contacts the bending member for driving the output member, and the radial position of the drive cam with respect to the bending member is adjustable through the hypocycloid transmission system,between an outer position proximate the circumference of the output member and an inner position proximate the central axis, for adjusting a desired stiffness of the coupling system.
    Original languageEnglish
    Patent numberEP3090194 (A1)
    Priority date30/12/13
    Publication statusPublished - 18 Apr 2014


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