| 摘要 |
<p>PROBLEM TO BE SOLVED: To attain a structure capable of facilitating adjustment of the spring rigidity of a disk spring body 17a, regarding a disk spring 16a whose inner diameter side portion is a partial conical-shaped disk spring 17a and outer diameter side portion is a flange part 18a, and an electrically-driven power steering device including the disk spring 16a.SOLUTION: A cutout part opened to the outer peripheral edge of a flange 18a is provided in a circumferential direction 1 or at a plurality of places. Based on adjustment of the number, shape and dimension of the cutout part, the spring rigidity of a disk spring body 17a is adjusted.</p> |
