| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a safe writing implement which prevents breathing from becoming impossible even when an eraser holder fitted removably to a writing holder is swallowed in by mistake. <P>SOLUTION: An eraser letting-out unit U is composed of an eraser 7, a rotary sleeve 8 and a screw 9 and constitutes an eraser letting-out mechanism E and it is the eraser holder fitted removably to the writing holder 2. The internal sectional shape of an eraser holding part 81 of the rotary sleeve 8 is formed to be circular and the sectional shape of the eraser is formed to be hexagonal, while a through hole 811b is formed in a front wall part 811 and a communicating path R is formed between the eraser 7 and the eraser holding part 81. <P>COPYRIGHT: (C)2004,JPO |
