A braking or clutching device

摘要

This braking or clutching device for providing sensory information or tactile feedback free of stick-slip action comprises:
- a housing (12);
- a generally annular member (48) movable along a longitudinal axis of the housing;
- a shaft (16) rotatable relative to the housing (12) and to the member (48);
- a first disk (34) and a second disk (36) rotationally fixed respectively relative to one of the housing (12) or the shaft (16) but free to move along the longitudinal axis; and
- a force generation device (56) arranged to move the member (48) along the longitudinal axis, with the first (34) and second (36) disks being in frictional sliding;
the first (34) and second (36) disks presenting contact surfaces comprising a bearing material with a low coefficient of friction, with the same kinetic and static coefficients of friction.