| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a convenient pressurizing-type ball-point pen which highlights the convertibility of a drawn line by writing by converting the setting of pressure in a pressurizing mechanism by pumping. <P>SOLUTION: In the pressurizing-type ball-point pen of such a structure that the tip of the ball-point pen is provided at the apex; ink and a follower which follows up on the ink, located at its rear end are packed in a rear ink storage part; and a pumping-type pressurizing mechanism is installed behind the follower, the pressurizing mechanism is equipped with an ejection mechanism part which has the outer peripheral part in contact closely with the inner peripheral part of a rear barrel and is secured to the rear barrel in a freely advancing/receding manner and a valve mechanism part which feeds pressurized air to the forward part of the ejection mechanism part. In addition, a space part is compressed and the rear end of the follower is pressurized when the ejection mechanism part is moved forward, and the space formed between the forward end of the ejection mechanism part and the rear end of the valve mechanism part can be adjusted, so that the pressurizing force is convertibly set. <P>COPYRIGHT: (C)2005,JPO&NCIPI |
