| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a structure of a double lid of a vessel capable of preventing the illegal action mainly from the outside. <P>SOLUTION: The structure of the double lid X of a vessel body 10 is mounted to a recessed opening section 7 of a mounted substance 1. A cap-like outside lid 28 of the double lid X is detachable in a screwable manner by making a male screw section 27 for an outside lid of a cap-like inside lid 21 screwed to the vessel body 10 as a standard. A female screw section 32 screwing to the male screw section 27 is formed in the inside circumferential surface of the circumferential wall section 30 so as to become an idling state when the outside lid 28 falls down to the exterior wall surface 26 of a non-screw section on the lower end section side of the inside lid exceeding the male screw section 27 for the outside lid. <P>COPYRIGHT: (C)2005,JPO&NCIPI |
