| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a cap for a writing tool with a seal adhered which is difficult to form wrinkles in a reduced diameter portion when adhering a seal on a cap body having the reduced diameter portion of which the outer diameter is gradually reduced toward its bottom surface. <P>SOLUTION: The cap for a writing tool is provided in which a reduced diameter portion of which the outer diameter is gradually reduced toward its bottom surface is formed in a cap body formed of a bottomed cylindrical body, and a bent portion or a flexed portion is formed on the outer surface of the cap body, and a seal is adhered on the outer surface of the cap body, wherein a narrowed width portion with a width smaller than other portions is formed at at least one end of the seal, and the narrowed width portion is adhered to the reduced diameter portion of the cap body. <P>COPYRIGHT: (C)2008,JPO&INPIT |
