| 摘要 |
PROBLEM TO BE SOLVED: To facilitate maintenance inspection of a ventilating means, and to enhance safety by forming a ceiling portion in a shape of an air duct composed of a roof portion in the shape of a plane and a roof support portion which supports this, and putting the ventilating means inside an eaves portion in such a way as to make possible its attaching or detaching work from below the outside of the eaves portion. SOLUTION: A roof portion 6 is fitted to a roof support portion 7 and the roof portion 6 and the roof supporting portion 7 for a ceiling portion 8 in a shape of an air duct. A ceiling portion 8 is connected through to the inside space 9 of a panel over the whole gamut and connected also to an eaves portion 10. Additionally, an axial fan 11 being a ventilating means is put inside the eaves portion 10, and a ventilating hole board 12 is attachably and detachably fitted to the lower part of the eaves portion 10. The eaves portion 10 is opened to the outside air via the ventilating hole board 12, and the axial fan 11 is made removable from the outside. Consequently, it is possible to inspect or exchange the ventilating means on the ground, and to greatly enhance safety of work. |
