| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To achieve a structure capable of preventing uncomfortable hitting noise in an engagement part of a guide oblong hole 12 and a guide block 14a and plastic deformation of the guide block 14a. <P>SOLUTION: The guide block 14a comprises a metallic main part 27 constituting an intermediate part in the length direction of the guide oblong hole 12 and synthetic resin auxiliary parts 28 constituting both end parts in the length direction, and the main part 27 is supported and fixed to an outer peripheral face of an inner column 11. Torque transmission between the inner column 11 and an outer column 10 is performed through the metallic main part 27. With the guide block 14a moved to an end part of the guide oblong hole 12, the synthetic resin auxiliary part 28 is butted on the end part inner edge of the guide oblong hole 12. <P>COPYRIGHT: (C)2009,JPO&INPIT</p> |
