| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a cap of a ball-point pen, wherein an elastic body easily returning to an original state and hardly causing an air intake phenomenon is arranged. <P>SOLUTION: In this cap of the ball-point pen, the elastic body for sealing an end of the ball-point pen tip rotatably holding a ball is arranged. In the elastic body, a part, which abuts on the end of the tip, has a prescribed thickness; a surface on a side, whereon the end of the tip abuts, and a surface on the opposite side are protruded to the side of the end of the tip; and the surface on the side, on which the end of the tip abuts, is formed in an almost arc shape. <P>COPYRIGHT: (C)2005,JPO&NCIPI |
