| 摘要 |
PROBLEM TO BE SOLVED: To provide an opening valve that can restrain extension or breakage of a thin part against impact, stress and the like during assembly of a vessel, especially stress applied in forming an integrated combination of a lid and a vessel body by caulking such as curling or by bonding of laser and the like, and to provide a lid body, a vessel body and a vessel comprising the opening valve.SOLUTION: An opening valve 14 provided on a vessel comprises: a thin part 20 that is open when specified pressure is applied; and a tilt part 22 that couples the thin part 20 and a lid body 10 of the vessel around the thin part 20 and is tilted toward the lid body 10 from the thin part 20. Thickness of the tilt part 22 is thinner than that of the lid body 10. |
