| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a container cap capable of preventing a container from being broken by a rise in internal pressure or the cap from dropping. <P>SOLUTION: The container cap consists of an inner cap (2) having at least one through-hole (2b) communicating with the inside of the container on a top wall part (2a) to be fixedly held on a mouth of the container and an outer cap (3) turnably put over the inner cap (2) and having at least one vent communicating with the open air. The through-hole (2b) of the inner cap (2) is coupled with the vent of the outer cap (3) via a conduit (4) which is closed before turning of the outer cap (3) but opened only after the turning. <P>COPYRIGHT: (C)2006,JPO&NCIPI |
