RACK PINION TYPE STEERING SYSTEM

摘要

PROBLEM TO BE SOLVED: To provide a rack pinion type steering system which smoothly moves a rack guide to a rack bar even a gear case and a rack guide base body are formed of aluminum or aluminum alloy. SOLUTION: The rack pinion type steering system 1 is furnished with: the gear case 3 made of aluminum or aluminum alloy having a hollow part 2; a steering shaft 6 supported on the gear case 3 free to rotate through roller bearings 4 and 5; a pinion 7 integrally provided on a shaft end part of the steering shaft 6; the rack bar 9 on which a rack tooth 8 to bite on the pinion 7 is formed; the rack guide 10 arranged in the hollow part 2 of the gear case 3 and to support the rack bar 9 free to slide; and a coil spring 11 to pressurize the rack guide 10 toward the rack bar 9. COPYRIGHT: (C)2005,JPO&NCIPI