Title:
AIR SHUTTER AND ITS SETTING METHOD
Document Type and Number:
Japanese Patent JP3897732
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide an air shutter of a low cost and a high efficiency capable of efficiently shutting out air by catching the actual flow of an air flowing in an open air region at the time of opening an entrance with a temperature difference and easy to carry out its maintenance.
SOLUTION: This air shutter is constituted of a cold air shutting column 12 provided adjacent to both sides of an opening part of the entrance with the temperature difference and a hot air shutting pedestal 13 provided at an opposite position of the cold air shutting pedestal 12, the cold air shutting pedestal 12 is provided with a lower part blowout nozzle 12a and a suction port 12b and a lower part blowout fan 12c and a suction duct 12d built in it, and the hot air shutting column 13 is provided with an upper part blow-off nozzle 13a and a suction port 13b and an upper part blow-off fan 13c and a suction duct 13d built in inside of it.
Inventors:
Yukio Owada
Yuichi Tsubata
Seiichi Sakuma
Shinjiro Akahoshi
Satoshi Adome
Yuichi Tsubata
Seiichi Sakuma
Shinjiro Akahoshi
Satoshi Adome
Application Number:
JP2003149544A
Publication Date:
March 28, 2007
Filing Date:
May 27, 2003
Export Citation:
Assignee:
Maekawa Manufacturing Co., Ltd.
International Classes:
F24F9/00; (IPC1-7): F24F9/00
Domestic Patent References:
| JP2000249382A | ||||
| JP11248220A |
Attorney, Agent or Firm:
Masahisa Takahashi
Hisamaru Hanada
Hisamaru Hanada