VESSEL, VESSEL MOUTHPIECE, AND LID USED THEREFOR

摘要

PROBLEM TO BE SOLVED: To provide a vessel comprising a vessel body accommodating gas, liquid or paste-like fluid and a discharging part having an outlet hole for discharging the fluid outside, a vessel mouthpiece, and a lid used for the vessel in which the outside air can be prevented (shut off) from entering the inside of the vessel without being affected by the restoring force generated in the vessel when the fluid is discharged. SOLUTION: The outlet hole 6 for discharging the fluid outside is formed in the discharging part 3, and an elastic film 7 for covering the outlet hole 6 is covered over the discharging part 3 to cover the outlet hole 6. Since the fluid flows out of the outlet hole 6, the elastic force is generated in the elastic film 7, and this elastic force prevents the outside air from entering the inside of the vessel body 2.