| 摘要 |
<P>PROBLEM TO BE SOLVED: To inexpensively provide a knocking type writing implement on which a ball-point pen for correcting an error in writing is principally mounted by using ink easy to pause. <P>SOLUTION: In a knocking type writing implement wherein ink and a ball-point pen refill provided by filling ink and a following follower at a rear end are mounted and a point part of the tip can be made frequent appearances from the tip of a top barrel, the ball pen refill is freely detachably fitted in front of an inner hole part of a knocking cylinder to be engaged with a retreat position to a barrel cylinder. Further a pumping type pressurizing mechanism is provided in the rear of an inner hole part of the knocking cylinder. Under a condition wherein the point part of the tip is protruded from the tip of the top barrel, a pressure mechanism of a pumping type is functioned by pushing the knocking part provided on a rear end of the knocking cylinder. Air is pushed into a rear end hole of an ink housing part closely fitted to a front end of a pressuring mechanism part. In that case, a valve is opened by a specific pressure, and fluidity to the tip side of the ink can be supported by pressuring the rear end of the follower by opening a valve by a specific pressure in that case. <P>COPYRIGHT: (C)2004,JPO&NCIPI |
