Patent ID: 8181763
Filing Date: 2012-05-22
Classification: H02K

Abstract:
1. A window winder drive, comprising: a freewheeling clutch having an outer clutch part with a first clamping surface, an inner clutch part with a second clamping surface concentric with respect to the outer clutch part and clamping bodies arranged between the first clamping surface of the outer clutch part and the second clamping surface of the inner clutch part; a switching cage having claws which engage in an annular space and force the clamping bodies out of a clamping position to rotate the inner clutch part relative to the outer clutch part; a drive element; and a damping element which is connected between the drive element and the switching cage, wherein the clamping bodies are arranged in pairs in the annular space formed between the clamping surfaces, each pair includes a first clamping body having a clamping action exclusively in a first direction of rotation of the outer clutch part relative to the inner clutch part, and a second clamping body having a clamping action exclusively in second direction of rotation, opposite the first direction of rotation.