摘要 |
<P>PROBLEM TO BE SOLVED: To soften a shock when a refill is stored in a writing implement having a rotary cam type feeding mechanism. <P>SOLUTION: A stopper (6) is provided in an axial cylinder (3), and an outer cam (9) and a guide cam (17) of the rotary cam type feeding mechanism is provided in front of the stopper (6). A rotary cam (10) is attached to a refill (1) and an elastically expandable/contractable buffer piece (25) is provided to a rear end. When the refill (1) is retreated by the action of a spring (8), the rotary cam (10) is elastically obstructed from retreat moving because a buffer piece (25) abuts a stopper (6). The writing tip of the refill (6) is air tightly held with an airtight sleeve (27) at storing. <P>COPYRIGHT: (C)2005,JPO&NCIPI |