| 摘要 |
PROBLEM TO BE SOLVED: To provide a structure capable of surely fixing a small diameter coil spring to a large diameter coil spring, in the structure for storing the small diameter coil spring inside the large diameter coil spring.SOLUTION: Since both a circular cross section part 56 of a large diameter coil spring 36a and a circular cross section part 58 of a small diameter coil spring 36b are sandwiched in a holding plate 54, the small diameter coil spring 36b is integrally fixed to the large diameter coil spring 36a, and the small diameter coil spring 36b is surely checked in relatively moving to the large diameter coil spring 36a. Since a state of sandwiching the small diameter coil spring 36b and the large diameter coil spring 36a in the holding pate 54 is always maintained, the small diameter coil spring 36b is surely prevented from slipping out of the large diameter coil spring 36a. |
