Manual adjustment mechanism for a vehicle

Abstract

A manual adjustment mechanism for adjusting the relative position of a component in a vehicle including a control device for actuating the mechanism. The manual adjustment mechanism includes an input shaft coupled to the control device and an output shaft operatively coupled to the input shaft. A support bracket axially supports the input shaft and the output shaft. A drum shaped housing having a cylindrical inner surface is fixedly secured to the support bracket and rotatably received the input shaft. A coupler is mounted to the input shaft and rotatably disposed within the housing. The coupler includes a pair of spaced apart tube walls planar with and spaced from the inner surface of the housing and a pair of circumferentially opposite tabs projecting between the tube walls. A coiled spring is disposed between the housing and the coupler and compressed against the inner surface of the housing. The coiled spring includes axially and laterally spaced distal end projecting radially between the tube walls of the coupler. The manual adjustment mechanism also includes a cam driver coupled to the output shaft. The cam driver includes a pair of circumferentially spaced apart wedge drivers seated between the respective pair of tube walls and capturing the distal ends of the coiled spring between the wedge drivers and the tube walls.