As the plating rack axial support structural null plating rack axis of the plating rack

摘要

PROBLEM TO BE SOLVED: To prevent occurrence of gear sound by arranging a first bush so that its phase position is not conformed to the phase position of a second bush.;SOLUTION: Swollen parts 54, 55 of a rack bush are arranged so that the phase positions to a rack shaft 1 thereof are not conformed to the phase position to the rack shaft of the swollen part 64 of a rack bush. The swollen parts 54, 55, 64 of each rack bush is mutually shifted and arranged to support the rack shaft 1 from substantially the whole circumferential direction thereof. The swollen parts 54, 55 of the rack bush on the pinion-side end part are arranged so as not to situate on the rack tooth 1a side. Even if a disturbance is inputted, the tooth gearing sound caused by the collision of the rack tooth 1a of the rack shaft 1 to the tooth of a pinion 3 can be prevented since the direction of generating an oscillation in the rack shaft 1 is eliminated.;COPYRIGHT: (C)2000,JPO