| 摘要 |
<P>PROBLEM TO BE SOLVED: To make it possible to take a refill out of the rear end of the barrel of a writing utensil, which delivers the refill by means of a rotary cam mechanism. <P>SOLUTION: A stopper (3) in the state of a detent is fixed in a barrel (1). A cam tube (4) is inserted in this stopper (3). Engaging projections (15) provided on the cam tube (4) are engaged with the engaging holes (14) of the stopper (3). In this case, the engagement can be disengaged by rotating the cam tube (4). A push-button part (5) is connected with the cam tube (4) axially movably and impossibly rotatably. Since the cam tube (4) disengages from the stopper (3) by rotating the push button part (5), the cam tube (4) and the push-button part (5) can be drawn out of the rear end of the barrel, resulting in enabling to take the refill (2) in the barrel out of the rear end of the barrel. <P>COPYRIGHT: (C)2006,JPO&NCIPI |
