| 摘要 |
PROBLEM TO BE SOLVED: To attain a structure with easy manufacturing regarding an energy absorption type shaft for a steering device for absorbing impact while bending a small cross section area part 11 provided on an intermediate part at collision accident. SOLUTION: A pair of large diameter parts 17a, 17b constituting an inner shaft 8a combined with a first outer tube 9 are mutually made to a separate body. By the constitution, the inner shaft 8a can be easily and efficiently created without damaging a male serration part formed on outer peripheral surfaces of the both large diameter parts 17a, 17b and the small cross section area part 11. COPYRIGHT: (C)2009,JPO&INPIT |
