Patent ID: 7958800

Claim:
Actuation device for actuating a traction element, with a movably mounted force transmission element for transferring an actuation force to the traction element, the force transmission element comprising a first stop means movable with the force transmission element, and with a fixed stationary stop means, the first stop means and the fixed stationary stop means being arranged such that they limit movement of the force transmission element, wherein at least one of the first stop means and the fixed stationary stop means comprises a resilient element which is designed such that it absorbs kinetic energy of the force transmission element when the first stop means butts against the fixed stationary stop means and that it releases the absorbed kinetic energy to the force transmission element when the first stop means moves away from the fixed stationary stop means; wherein the force transmission element comprises a wheel to transfer the actuation force from a drive means to the traction element; and wherein the first stop means is arranged such that it protrudes from the force transmission element from a plane in which the force transmission element is movable, in both directions perpendicular to the plane and such that the fixed stationary stop means comprises a first stop element arranged on a first face of the plane and a second stop element arranged on a second face of the plane as a minor image of the first stop element.