| 摘要 |
PROBLEM TO BE SOLVED: To promote effective use of rainwater, by storing the rainwater in an outer wall of a building. SOLUTION: The constitution of the building having a rainwater storage tank wall, is composed of a wall body 3 forming the storage tank wall by joining a pair of mutual opposed steel plates 3a and 3b so that a predetermined interval can be maintained by a plurality of steel pipes 7, and endures even high water pressure by these steel pipes. An outer peripheral wall 1 of the building is formed by connecting these wall bodies 3 by the predetermined number. This outer peripheral wall 1 is constituted so that a space partitioned and formed between the steel plates is formed as a water storage tank 4 for storing the rainwater gathered from the building, and this water storage tank 4 is connected with a distributing water pipe making the stored rainwater usable in the inside and the outside of the building. The rainwater stored in the water storage tank 4 is also used as drinking water by arranging a rainwater purifying device, while being usable for sprinkling water, firewater and a flush toilet via the distributing water pipe. COPYRIGHT: (C)2008,JPO&INPIT
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