Title:
WATER STORAGE TANK
Document Type and Number:
Japanese Patent JP3881064
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To prevent a water storage tank from being pushed up by underground water even if, when water in the tank decreases, the groundwater level in a region, in which the tank is embedded, rises.
SOLUTION: A pump-out port 2 covered with a cover body 4 is formed on a top plate 1a of a water storage tank body P1 and a lower opening 1b is provided at the center of the bottom of the tank body 1. An underground water introducing pipe 6 made of bellows-shaped pipe whose lower end is connected to the port 1b is erected and an introducing port 6a at the upper end of the pipe 6 is connected to a ring-shaped float member 7 through connection arms 8, 8. Each of the arms 8, 8 has a through hole at its inner end so that guide bars 5, 5 erected from the opening 1b each are passed through the through holes of the arms 8, 8 to guide the member 7 to move only in a vertical direction. An underground water introducing space 3 is formed beside the tank body 1 and connected to the opening 1b through an underground water introducing passage 9.
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Inventors:
Shinichiro Hayashi
Application Number:
JP24553396A
Publication Date:
February 14, 2007
Filing Date:
August 28, 1996
Export Citation:
Assignee:
Shinshin Block Co., Ltd.
International Classes:
B65D88/76; G01F23/56; (IPC1-7): B65D88/76; G01F23/56
Domestic Patent References:
| JP4339924A | ||||
| JP60099889A | ||||
| JP51058914U | ||||
| JP62130093U | ||||
| JP50022506U | ||||
| JP60144470A |
Attorney, Agent or Firm:
Yukio Kohata
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