| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a writing utensil which keeps discharging of an ink well even though it has a structure having no restriction on design and structure to the utmost and satisfies a requirement for durability of a pen point. <P>SOLUTION: The writing utensil is constituted in such a way that an extrusion-molded pipe of a polypropylene resin being an ink tank is pressed in and fixed at the smallest diameter part of a shaft cylinder to feed the ink in the ink tank to the pen point. <P>COPYRIGHT: (C)2004,JPO |
