GRIP STRUCTURE OF SHAFT TUBE AND WRITING INSTRUMENT AND APPLICATOR HAVING GRIP STRUCTURE OF SHAFT TUBE

摘要

PPROBLEM TO BE SOLVED: To provide a grip structure of a shaft tube for improving aesthetic appearance of a shaft tube portion by increasing adhesion between a gel material and a core shaft, and for preventing dullness of a grip color even when the core shaft is made of metal. PSOLUTION: The grip structure 20 of a shaft tube 11 is provided which contains a coating material therein and is disposed in a grip portion 17 of the shaft tube 11, wherein the grip structure 20 of the shaft tube 11 comprises: an inner covering body 21 which contains a coating material inside thereof and is disposed outside of a core shaft 13 and directly covers the core shaft 13; an outer covering body 23 covering an outside of the inner covering body 21; and a self-shape retainable gel material 25 to be filled between the inner covering body 21 and the outer covering body 23; and the inner covering body 21 is formed of a material having its affinity with the gel material 25 higher than that with a material of the core shaft 13. The core shaft 13 is made of a metal and the inner covering body 21 is formed of a non-light transmissive material. PCOPYRIGHT: (C)2008,JPO&INPIT