| 摘要 |
<p>An apparatus for forming a taper serration on a pivot shaft includes two taper serration dies 12, supporting shafts 14, and bolts 30. Each of the two taper serration dies includes a taper serration portion 12 formed at a front edge thereof and a taper hole 14 formed therein. One ends of the supporting shafts 20 are inserted into the taper holes 14 of the two taper serration dies 10 at a predetermined depth, respectively, and the other ends thereof are rotatably supported by objects, respectively. Each of the bolts fixes the taper serration die 10 to the supporting shaft 20 with a washer 32, which is inserted into a front portion of the taper serration die 10 by a predetermined depth and interposed between the bolt and the taper serration die.</p> |
