| 摘要 |
<p>PURPOSE:To prevent the bending of a pellet or contact of the pellet with a collet when the thrusting-up condition of the a pin is improper. CONSTITUTION:A buffer spring 2 is installed to the title pin so as to relieve the impact to a pellet when the pellet is thrust up and prevent the occurrence of such a trouble as the bending of the pellet, contact of the pellet with a collet, etc., associated with an improper thrusting-up condition.</p> |
