Patent ID: 6921096
Filing Date: 2005-07-26
Classification: B62D,F16H,Y10T

Abstract:
1. A vehicle steering system comprising: a pinion shaft having a pinion gear on an outer circumference and installed within a housing; a rack bar located within the housing so as to cross the pinion shaft, said rack bar having a rack gear meshing with the pinion gear on one side of a middle part of the rack bar; and a plurality of rack bar supporting apparatuses provided at a rear surface of the rack bar for elastically supporting the rack bar in the direction of the pinion shaft, wherein the plurality of rack bar supporting apparatuses comprises: a pair of yoke cylinders spaced from each other by a predetermined angle in the circumferential direction on the rear surface of the rack bar, said yoke cylinders being enclosed at outer sides by respective yoke plugs; support yokes each installed within a respective one of the yoke cylinders; a plurality of springs each inserted between a respective one of the support yokes and a respective one of the yoke plugs, the support yokes having respective contact grooves for partially surrounding the rack bar at one end facing the rack bar; and yoke seats each installed between a respective one of the contact grooves and the rack bar.