| 摘要 |
A beverage dispenser is proposed which includes a soft raw water container and which makes it possible to spontaneously use up drinking water in the container. A water passage tube (12) of a container connecting portion (10) includes a tubular partitioning wall (13) dividing the interior of the water passage tube (12) into a water passage (14) communicating with a water passage hole (14a), and an air passage (15) communicating with the water passage (14) through a small air passage hole (15a). A water passage pipe (16) is connected to the water passage (14). The water passage tube (12) has a base portion (12a) formed with an opening (15b) communicating with the air passage (15). An air passage pipe (17) is connected to the opening (15b) and hangs vertically downwardly into a low-temperature tank (2). An on-off valve (19b) is provided at the free end of the air passage pipe (17) which is adapted to open when the water level in the low-temperature tank (2) lowers. With this arrangement, when drinking water in the raw water container (A) runs low and the water level in the low-temperature tank (2) remains low, air in the low-temperature tank (2) is introduced into the raw water container (A) through the on-off valve (19b), which is now open, the air passage pipe (17), the air passage (15) and the small air passage hole (15a). This eliminates a negative pressure in the raw water container (A), thereby allowing water remaining in the container to be dropped into the tank. |
