| 摘要 |
PURPOSE: To carry out the smooth attachment/detachment by making contacting force between outside of bushing and an elastic member mitigate. CONSTITUTION: Writing utensils possess an elastic member 5 which is different from a cap 2 on the outside of a bushing 1, fitting of a cap part 2-1 to the bushing and taking-out operation such as taking out the cap part 2-1 from the bushing can be performed smoothly by providing a plurality of longitudinal ribs 4 extending in a bushing direction on an inner circumferential surface of the cap part 2-1. |
