| 摘要 |
PROBLEM TO BE SOLVED: To prevent the loosening apart of the head of a writing brush at the time of assembling by constituting a fixing pipe of fixing pipe sides bisected in a longitudinal direction, connecting the one-side ends of these fixing pipe sides bendably at a base part and integrally forming a cylindrical part to be inserted with the head of the writing brush in this base part. SOLUTION: A tip holder 11 which is the fixing pipe comprises the tip holder sides 14, 15 bisected in the longitudinal direction. The one-side ends of the respective tip holder sides 14, 15 are bendably connected via the circular base part 16. The cylindrical pipe 12 to be inserted onto a coating tip 9 as the head of the writing head is integrally erected and formed at the center of the base part 16. The coating tip 9 is inserted into the pipe 12 in the state of expanding the tip holder sides 14, 15 of the tip holder 11. The tip holder sides 14, 15 are then closed and thereafter, the tip holder 11 is press fitted to the holder. As a result, the loosening apart of the coating tip 9 does not arise at the time of assembly and the improvement in the quality is made possible. |
