| 摘要 |
<P>PROBLEM TO BE SOLVED: To reduce the number of components, facilitate their assembly and disassembly work, and facilitate maintenance of all the components. <P>SOLUTION: A bottle cap includes an external cap portion 21 which is removably attached to the outside of an opening 1a of a bottle body 1, an internal cap portion 23 removably built into the external cap portion 21 with direct drinking port 14 held inside the external cap portion 21, allowing a person to pull at a bottle, communicating with the inside of the bottle body 1 via a heat-insulating space formation part 22 having a care and cleaning open part 22a around the drinking tap 14 and protruding above the external cap portion 21, and a seal member 16 removably built in a mutual boundary portion among the external cap portion 21, the internal cap portion 23 and the bottle body 1 for sealing each of them and sealing the care and cleaning open part 22a of the internal cap portion 23 at least under this sealing condition. Therefore, the problem is solved. <P>COPYRIGHT: (C)2009,JPO&INPIT |
