| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a correcting ball-point pen, in which easily breakable ink is used and which is free from troublesome operation of pressing the side of a container, by employing a simple pressurizing mechanism. <P>SOLUTION: In the pressurizing type ball-point pen equipped with a pumping type pressurizing mechanism, the outer peripheral part of a push button is provided so as to come into close contact with the inner peripheral part of an ink housing tube. A tapered or spherical seat is provided at the rear of the bore part of the push button. At the axis center of the seat, a venting hole passing through a rear end is provided. At the same time, a valve element is provided so as to be brought into close contact with the seat by a spring, resulting in bringing the interior of an ink housing tube ahead the valve element into a closet state. Through the advancement of the push button, a fore space part is compressed and the rear end of a follower is pressurized. Through the retreat of the push button, the close contact state of the valve element is provided to be released by the pressure reducing action of the fore space part. <P>COPYRIGHT: (C)2004,JPO |
