| 摘要 |
PROBLEM TO BE SOLVED: To make a container adapter function to introduce a gas toward the container directly from outside without the intermediation of drinking-water server and have a structure that prevents drinking water from spilling upon connection and is easy of maintenance.SOLUTION: A rigid container under a condition of the penetration of a gas "a" into a container 1 to flow drinking water w down out of the container 1 is utilized for a drinking-water server having no mechanism to supply the gas "a" at another stage for the purpose to utilize a flexible container under no condition of the penetration of a gas "a". The other end of a water-supply pipe 25 one end of which communicates with a water storage tank 10 side and the other end of a vent pipe 23 one end of which is open to atmospheric air outside of container 1 are inserted into the container 1, and the other end of the vent pipe 23 is positioned at a portion more distant from a mouth 5 of the container 1 than from the other end of the water-supply pipe 25, takes up the gas "a" from the vent pipe 23 into the container 1 when the interior of the container 1 turns depressurized by the use of the drinking water w, discharges the gas "a" from the vent pipe 23 out of the container 1, and constantly holds the interior of the container equal to the atmospheric pressure, thereby assisting the use of the interior of the container 1 and that of the drinking-water server. |
