| 摘要 |
PROBLEM TO BE SOLVED: To provide a lightweight air dome for a dome screen installed and operated by one person, low in noise and convenient to move. SOLUTION: In this air dome 1, a dome 2 spreadable in almost semispherical shape at the upper part by internal air pressure and having an entrance 5 in a side face and an inwardly extended skirt part 8 at the lower end of a peripheral wall is formed of a thin, flexible and lightweight (200 g/m<SP>2</SP>) shading membrane body 3, and air pressure required to spread the air dome is about 30 Pa or less at gauge pressure. A lightweight electric fan 11 for service use easily carried by one person is used for air supply to reduce noise, and the mass and number of weight members 16 are reduced to enable one worker to easily perform setting up and recovery. The blower 11 can be remote-operated from the inside of the dome 2, and the operation of the blower 11 can be performed by an operator for projection equipment 20 and materials. An exhaust means 13 is provided with an exhaust amount adjusting means 15b. A gripping member 19 is provided at the lower end of the inside of the dome. COPYRIGHT: (C)2004,JPO&NCIPI
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