| 摘要 |
PROBLEM TO BE SOLVED: To provide an ink writing utensil of such a structure that the supply of air to the interior of an ink tank part is smooth and secure when the internal pressure of the ink tank part is lower than an atmospheric pressure. SOLUTION: In the ink writing utensil of such a structure that an ink holder 131 is arranged in contact with an open rear edge face 63 where a slit 71 of an ink reservoir 11 is opened, the corner 67 of the outer peripheral part of the rear edge face 63 is shaped like an arc and a gap 151 leading to the slit 71 is partitioned. The outer periphery of the ink holder 131 comes into contact with ribs 143 formed in holes 7 of a body barrel 141 and a gap 147 leading to an ink tank part 75 is partitioned on both sides of each of the ribs 143. |
