CLAMPING ROLLER FREEWHEEL FOR AN ADJUSTING DEVICE IN A MOTOR VEHICLE

Title:

CLAMPING ROLLER FREEWHEEL FOR AN ADJUSTING DEVICE IN A MOTOR VEHICLE

Document Type and Number:

WIPO Patent Application WO/2012/045714

Kind Code:

A3

Abstract:

The clamping roller freewheel for an adjusting device in a motor vehicle comprises a cylindrical outer surface which defines an axis (22), at least one roller pair, an output shaft which is concentric to the axis (22), a clamping element (30) which is rotationally connected to the output shaft and which has at least one clamping slope (32) situated on an opposite side of the roller pair to the cylindrical outer surface, and a spacer means which is situated at least partially between the rollers of the roller pair and which has elastic properties. This spacer means is embodied by a spacer piece (44) and a spring (54). The spacer piece (44) is arranged been the rollers, is able to move in a direction of movement (70), which extends transversely with respect to the circumferential direction, between a normal position and a retracted position, and has at least one oblique surface (46). When the spacer piece (44) is in the normal position, the oblique surface (46) bears against a roller. The spring (54) presses the spacer piece (44) into the normal position in which it exerts, in the circumferential direction, a force on at least one roller. When passing from the normal position to the retracted position, the oblique surface (46) is moved away from the roller.

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Inventors:

KARTHAUS ULRICH (DE)

Application Number:

PCT/EP2011/067269

Publication Date:

November 15, 2012

Filing Date:

October 04, 2011

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