The handle (4), having its end inside a body (3) containing a toothed wheel connected to the drum or roller axle, is connected to the wheel by a spring-loaded pawl with a lever (11). A second spring-loaded pawl which acts as a stop is mounted inside the ho...

The rotationally functioning component has a disc ring(2) fitted on one end of a hollow shaft(1) and locked in an axial direction relative to the rotational axis and form-locked in the rotational direction. A stopper component(3) conforming to the free cro...