| 摘要 |
<p>PURPOSE:To insert an insertion member of a shaft into or remove it from a receiving member of a head smoothly while achieving higher fixing effect of the shaft. CONSTITUTION:An insertion member 20 is composed of a sleeve 21 fixed on a shaft 10 and a clamp cylinder 23 which is inserted externally into the sleeve 21 while having a tapered external surface 231 and is divided with a caliber thereof expandable by a slit. On the other hand, a receiving member 40 on the side of a head 30 is provided with a tapered hole 41 to receive the insertion member 20. The sleeve 21 is tightened by reducing the caliber of the clamp cylinder 23 of the insertion member 20 at a caliber reducing part of the tapered hole 41. The tapered surface 231 is divided vertically with a straight shell part 232 and pressed onto a hole wall 411 of the tapered hole at an upper and a lower points.</p> |
