Adjustment device

摘要

An adjustment device for adjusting seats includes a rotatable drive element, a rotatable output element, a first clamping element freewheel that blocks the output element continuously in different positions in both adjustment directions and that is released by a release element and a second clamping element freewheel that is coupled via the release element to the first clamping element freewheel, blocks the output element continuously in different positions in both adjustment directions and is released by an actuating element. The drive element is pre-tensioned in a middle position via two springs acting in different directions and the two springs pre-tension the actuating element in a middle position.

主权项

1. An adjustment device for adjusting seats, comprising:
a rotatable drive element; a rotatable output element; a first clamping element freewheel that blocks the output element continuously in different positions in both adjustment directions and that is released by a release element; and a second clamping element freewheel that comprises clamping elements and an outer ring, and that is coupled via the release element to the first clamping element freewheel, blocks the output element continuously in different positions in both adjustment directions and is released by an actuating element; wherein the outer ring is provided around the clamping elements of the second clamping element freewheel; wherein the outer ring comprises radially protruding projections on which a drive lever is fixed; wherein the outer ring displays a cross-section that deviates from a cross-section of a cylindrical body and thereby jams the clamping elements of the second clamping element freewheel in opposite directions; wherein the drive element is pre-tensioned in a middle position via two springs acting in different directions; wherein the two springs also pre-tension the actuating element in a middle position; wherein a projection of the drive element is arranged between two first end sides of the two springs; and wherein a projection of the actuating element is arranged between two opposing second end sides of the two springs.