Hydrogen encapsulating cap for beverage container

Abstract

[Problems to be Solved the Invention] To provide a hydrogen encapsulating cap for a beverage container, which can improve water-tightness, while preventing increase in the cost for producing a body of the cap. [Means for Solving the Problem] There is provided a hydrogen encapsulating cap 3 including a cylindrical cap body 10 formed with a female screw portion 12 for mating with a male screw portion 1b of a beverage container mouth 1a, a hydrogen encapsulating bag 30 accommodated in the cylindrical cap body 10, a press member 20 for rupturing the hydrogen encapsulating bag 30 by pressing from the above and a downward movement regulating plate 13 disposed in the lower portion of the cylindrical cap body 10 and above the female screw portion 12, and the downward movement regulating plate 13 is formed with a water-tight piece contacting the upper end surface of the beverage container mouth 1a and a passage opening through which hydrogen discharged from the hydrogen encapsulating bag 30 can pass.

Dependencies are inferred from the claim text.