| 摘要 |
<p>PROBLEM TO BE SOLVED: To achieve a structure capable of preventing occurrence of damage such as a crack of a steering column 2b when a steering wheel is rotated with large force while an ignition key is turned off.SOLUTION: A projection wall part 17 for surrounding all around the circumference of a locking through-hole 11a is disposed on the outer circumferential surface of a steering column 2b. A convex part 21 arranged in a lock unit 12a is fit in a concave part 18 arranged on the steering column 2b without backlash.</p> |
