| 摘要 |
PROBLEM TO BE SOLVED: To prevent the dislocation and rotation of a barrel cylinder and a skin, to improve appearance by making the color and residue of ink visible, narrowing a shaft, and doing other things, to improve durability to widen a material selection range when the skin is made from rubber, to improve functions to create soft, fitting touch, and to provide an inexpensive barrel of writing implement without increasing costs. SOLUTION: In a writing implement barrel, a barrel cylinder a based on a barrel and a synthetic resin skin at least part of which appears near the outside surface outside the barrel cylinder 1 are double molded, part of the cylinder 1 is in a state in which a through hole 3 is bored to the inside, the skin is molded to close the through hole 3, and the vicinity of the inside diameter of the through hole 3 of the cylinder 1 is of nearly the same size with the inside diameter of the through hole filing part of the skin and is not protruded inside. |
