Patent ID: 6668968
Filing Date: 2003-12-30
Classification: B62D

Abstract:
A power steering system comprising:a steering shaft turnably fitted to a vehicle body frame; a power assist cylinder provided between said steering shaft and said vehicle body frame; a control valve operated by said steering shaft to control said power assist cylinder; and a spool lever fitted to said steering shaft for operating said control valve, wherein said steering shaft is divided in the axial direction into a lower section and an upper section, the lower section being an input shaft, a connecting cylinder, to which said input shaft is serration-fitted, is integrally provided at a lower portion of said steering shaft, a side wall of said connecting cylinder is provided with a groove in the axial direction, fastening means is provided for reducing the diameter of said connecting cylinder so as to reduce the width of said groove, and said spool lever is integrally fitted to said input shaft.