| 摘要 |
<P>PROBLEM TO BE SOLVED: To reliably recognize whether a container has been unsealed while making separation of a cap side and a container side easy for disposal or the like. <P>SOLUTION: A ring body 2 has an elastic wing piece 21 slantly protruding along the inner periphery of a ring and has, along the outer periphery of the ring, an indication 23 fitting into a split groove 13 provided at the lower end of a tube of a cap body 1 to have its part exposed outside. When screwing a cap Cp onto the upper part Ya of the container, the elastic wing piece 21 of the ring body 2 is pressed against a contact Yd formed on the upper part Ya with its end 21a forward while elastically deforming, thereby permitting the rotation together with the cap body 1. When the cap Cp once screwed with the upper part Ya of the container is to be removed, the other end 21b of the piece 21 of the ring body 2 is brought against the contact Yd, thereby preventing the body 2 from rotating and breaking a part 23a of the indication 23. <P>COPYRIGHT: (C)2005,JPO&NCIPI |
