| 摘要 |
PROBLEM TO BE SOLVED: To provide a pool which is formed of a flexible material, sufficiently exerts advantages of the flexible material, and facilitates draining in a short period of time through a simple structure. SOLUTION: The pool 10 is formed in one body of a bottom sheet 11 formed of the flexible material and annular side wall portions 12 formed of the flexible material and having respective air chambers 13 on the periphery of the bottom sheet, and when air is filled into the air chambers 13, the annular wall portions is erected to define a water storage section 14 therein in cooperation with the bottom sheet. According to the structure of the pool 10 thus formed, a drain port is formed in the annular wall portion 12 or a boundary between the annular wall portion and the bottom sheet 11, and a drain valve 20 is provided for the drain port. The drain valve consists of a water discharge cylinder formed of the flexible material and enclosing an outside peripheral portion of the drain port in a manner being mounted on the side wall portion 12, and a cover covering the folded water discharge cylinder from the outside. COPYRIGHT: (C)2005,JPO&NCIPI
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