To provide an air shutter reducing discomfort of a passer passing through an entrance and exit openings, usable in a consumer building because noise is small without requiring enlargement of a fan, and having a sufficient blocking effect.
In the air shutter, the entrance and exit openings are formed, having a temperature difference, air ducts are erected on both side parts of the openings, and it is provided with an air blowout opening and an air suction opening in each of the erected pair of air ducts. Circulating flows crossing the entrance and exit openings are plurally formed by using the air blowout opening and the air suction opening provided in each pair of air ducts. The first circulating flows are big circulating flows provided so as to face each other in a plurality of different planes positioned in a vertical direction, and the other circulating flows are small circulating flows composed to circulate in inner sides of the large circulating flows. A wind speed of the large circulating flow is provided higher than a wind speed of the small circulating flow.
NAKAMURA MICHIHIKO
SATO TAKAHIRO
SATO HIROSHI
KUMAGAWA AKIHIRO
OGURA MASATAKA
FUCHIGAMI HIDENORI
MUTO YOSHITAKE
AKINO KIYOSHI
MAEKAWA SEISAKUSHO KK
KURIFU KK
| JP2006001401A | 2006-01-05 | |||
| JPH02135109A | 1990-05-24 | |||
| JP2006038392A | 2006-02-09 | |||
| JP2007278577A | 2007-10-25 | |||
| JP2007120779A | 2007-05-17 | |||
| JP2008057839A | 2008-03-13 | |||
| JPH07110185A | 1995-04-25 | |||
| JPS6233234A | 1987-02-13 |
Hiroshi Matsumoto