| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a cap type writing utensil, the cap of which can be installed easily attachably and detachably to and from a barrel and the airtightness in the cap of which hardly lowers. <P>SOLUTION: In the cap type writing utensil, to the tip part of the barrel of which a synthetic resin cap is detachably installed in order to solve the problem, the cap hermetically seals the interior of a cap main body by peripherally providing a nonslipping part made of an elastic body at the rear end part of the outer wall of a cap main body in order to peripherally contact the nonslipping part with the tip part of the barrel under the state that the cap main body is installed onto the barrel. <P>COPYRIGHT: (C)2008,JPO&INPIT |
