| 摘要 |
<P>PROBLEM TO BE SOLVED: To solve the problem that a gripping part of a shaft body internally sealing a flexible material, a gelatinous substance or a gas becomes deformed in its own way and therefore, is not resilient and excessively soft to give a user an uncomfortable writing feel, and even if a sturdy gripping part having fine solid bodies arranged in the space is employed, further improvement is still required to satisfy personal favorite touch. <P>SOLUTION: The shaft body is provided with or is formed integrally with the gripping part having a space formed inside and filled with fine solid bodies and/or auxiliary material, and is further provided with a means for changing the volume of the space having fine solid bodies and/or viscous material inserted therein. <P>COPYRIGHT: (C)2010,JPO&INPIT |
