| 摘要 |
PURPOSE:To provide a large capacity filter which does not obstruct viewfield and is constituted so that a box shaped cover whose front surface is opened above a roof, above the rear edge part of the cabin of the conventional agricultural tractor, and a large capacity filter is installed in demountable manner in the box-shaped cover, and the outside air is taken into the cabin through the filter. CONSTITUTION:An air conditioner 3 is installed in the vicinity of the reverse surface of the roof 2 of a cabin, and an outside air passing port 5 which is wide in the lateral width direction is opened on the rear part erection wall surface 4 of the roof 2, and the front surface of a filter 6 for air cleaning is joined in demountable manner outside the outside air passing port 5. An air passing gap is formed outside other five surfaces of the filter 6, and an outside air taking-in port 7 of the front opened port above the roof 2 is formed, and a cover 8 for cleaning is installed in the vicinity of the filter 6. |
