Abstract: A force-feedback device comprising a first member; a first kinematics bond being coupled with said first member; said first kinematics bond being constructed to provide at least one degree of freedom for movements of said first member; said first kinematics bond comprising a braking device being constructed to constrain movements of the said first member in at least one of said at least one degree of freedom; and a energy storing/release device being constructed to store energy in response to a movement of said first member in at least one of said at least one degree of freedom constrained by said braking device.

Abstract: A device for the relative movement between an input member and an output member, the device comprising an input member (100); an output member (108); an intermediate member (104) coupling the input member (100) and the output member (108); a first kinematics bond (102) coupling the intermediate member (104) and the input member (100); the first kinematics bond (102) providing at least two rotational degrees of freedom; and a second kinematics bond (106) coupling the intermediate member (104) and the output member (108), the second kinematics bond (106) being adapted to transmit rotational motions between the intermediate member (104) and the output member (108) and to offset rotation axes of at least two rotational degrees of freedom of the output member (108).