| 摘要 |
PROBLEM TO BE SOLVED: To provide a highly hermetic sealing structure with a simple constitution to be employed in a compact pressurized container of such a type that a valve is fixed by a cap. SOLUTION: The sealing structure includes a container body 1, a valve 3 inserted into a space 2 in the vicinity of the upper end of the container body and having a flange 6 held on an upper end surface 7 facing upward of the container body 1, an annular gasket 15 provided on an upper surface of the valve, a cup-formed cap 4 to be put over and caulked with an outer periphery of an upper part of the container body 1 to mount the gasket 15 and the valve 3 on the container body 1, and a packing member 28 which is placed between the flange 6 of the valve 3 and the upper end surface 7 of the container body 1 and also elastically comes into contact with an inner peripheral surface of the cap 4. An annular groove 29 is formed on an outer peripheral surface of the valve 3, and an inner peripheral side of the packing member 28 is fitted into the groove 29. A locking groove 9 is provided on an outer peripheral surface of the container body 1, and the vicinity of a lower part of the cap 4 is crimped by the groove 9.
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