| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a drink container cap which can be removed easily from the drink container when drinking is over, and can certainly be fitted into the drink container as well. <P>SOLUTION: The cap 1 fitted on the mouth of a soda bottle 20 includes an outer cylinder 10 which has a projection 10a on an inner peripheral surface 10b, the projection 10a engaging with a circular projection 20a on the mouth outer periphery of the soda bottle 20, and a spout hole 10c formed on a central top, and an inner cylinder 11 which is formed on the interior of the outer cylinder 10 and stuck closely to the mouth inner peripheral surface to be held there. The outer cylinder 10 is provided with two holes 10f which are formed on a trunk 10e extending from the position of the projection 10a to a lower end 10d and engage with a nail 21d of a bottle opener 21. The projection 10a is so formed that an engaging face 10g, which engages with the circular projection 20a on the mouth outer periphery of the soda bottle 20, makes a sharp angle with the inner peripheral surface 10b of the outer cylinder 10. The trunk 10e is formed to be thin-walled, and a lower end periphery 10j under the trunk 10e is formed to be thick-walled. <P>COPYRIGHT: (C)2007,JPO&INPIT |
