Patent ID: 7585245
Filing Date: 2009-09-08
Classification: B60N,F16H

Abstract:
1. A gear stage for an actuator for a vehicle, the gear stage comprising: a housing; a drive mounted to the housing for being rotated relative to the housing about a first axis; a driven output; and at least one separately formed rolling element, wherein the rolling element is partially positioned in and rolls in an annular peripheral groove in response to the drive being rotated about the first axis, the annular peripheral groove is positioned in a first component selected from the group consisting of the driven output and the drive, the rolling element rolls on an outside or an inside of a second component, which is not the first component and is selected from the group consisting of the driven output and the drive, in response to the drive being rotated about the first axis, the drive supports the driven output by way of at least the rolling element, to at least partially form a rolling eccentric, the driven output is for rotating relative to the housing about a second axis that is different from the first axis, the second axis is parallel to the first axis, and the second axis is offset from the first axis by an eccentricity, the rolling eccentric rotates in response the drive being rotated about the first axis, the driven output performs, by way of a friction gear tumbler mechanism and in response to rotation of the rolling eccentric, a tumbling rolling movement on the housing, the driven output bears against the housing at a rolling point, and the rolling point forms an instantaneous pole for the tumbling rolling movement of the driven output.