| 摘要 |
The present invention provides a hydrogen-sealing cap for a drink container in which the cost of manufacturing the main cap body is prevented from increasing and water-tightness is improved. The hydrogen-sealing cap (3) is provided with: a cap cylinder (10) provided with a female screw part (12) which fits around a male screw part (1b) of the drink container mouth (1a); a hydrogen-sealing bag (30) housed in the cap cylinder (10); a pressing member (20) for crushing the hydrogen-sealing bag (30) from above; and a downward restriction plate (13) provided to the lower part of the cap cylinder (10) and above the female screw part (12). The downward restriction plate (13) is provided with a water-tight piece (14) in contact with the upper edge face of the drink container mouth (1a) and a passage hole (15) for passing hydrogen released from the hydrogen-sealing bag (30). |
