| 摘要 |
<p>A steering system comprising a rack shaft (110) forming a rolling face (110b) on the side opposite to rack teeth (110a) while holding the axis X between and forming a pair of inclining faces (110c, 110c) extending in parallel along the axis on the opposite sides of the rolling face (110b), a roller (123) rolling on the rolling face (110b) of the rack shaft (110), and a member (130) abutting against the pair of inclining faces (110c, 110c) and imparting an urging force thereto. Since the urging member (130) being fixed to the housing (101) is formed annularly to surround the rack shaft (110) over the entire circumference thereof and has parts (130b, 130b) abutting against the pair of inclining faces (110c, 110c) and imparting an urging force thereto, the rack shaft (110) can support a force being applied from a pinion (103a) when the tubular roller (123) abuts against the rolling face (110b). Furthermore, rotational displacement of the rack shaft (110) around the axis can be suppressed when an urging force is imparted from the abutting parts (130b, 130b) of the urging member (130) to the pair of inclining faces (110c, 110c) of the rack shaft (110). Since the urging member (130) is annular, it can be fixed easily to the housing (101) or removed easily therefrom without using a fastening member, e.g. adhesive or screws.</p> |
