Mayekawa Mfg. Co., Ltd.

Sachio Ohwada

Kouichi Tsubata

Shinjirou Akaboshi

Akira Yasutome

Seiichi Sakuma

An air shutter of low cost, high efficiency, and easy maintainability is provided, which can interrupt efficiently the flowage of air across a doorway when the door is open based on the consideration of the experimental data of the flowage of air across the opening area of the doorway of a cold storage. The air shutter comprises a gatepostand a gatepostinstalled at both sides of the opening area of a doorway. The gatepostis provided with a lower slit nozzle, a suction opening, and lower fansand a suction ductinside thereof, on the other hand, the gatepostprovided with an upper slit nozzle, a suction opening, and lower fansand a suction ductinside thereof.

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Koto-ku, Japan

Sachio Ohwada