| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a bottle cap which can be removed easily from a bottle while a tube is kept connected. <P>SOLUTION: An inward move preventing portion 46 is constructed on the upper surface of an inner lid body 42. The inward move preventing portion 46 has a tabular shape, is disposed in the same direction of a supply nozzle 44 and a connection port 44A of a return nozzle and in the diameter direction of the inner lid body 42, and has first and second flanges 46A and 46B that projects out radially from the outer periphery of the inner lid body 42 to face back-to-back against each other. The distance between the front end of the first flange 46A and that of the second flange 46B is determined to be longer than the diameter of an opening 37A. Each of the front ends of the first and second flanges 46A and 46B is of an arcuate shape with an upside corner 46K rounded to form a curve. The first collar 46A projects longer than the second collar 46B does. The first and second flanges 46A and 46B are disposed outside the opening 37A. <P>COPYRIGHT: (C)2009,JPO&INPIT |
