| 摘要 |
PROBLEM TO BE SOLVED: To provide a knock down type corrugated paper-made calf hatch that has excellent ammonia gas adsorption or water or moisture absorption, hygiene and heat retention and can be readily assembled. SOLUTION: A roof A, side-walls B and a door C are made of corrugated paper. The U-shaped side wall B and the roof A are fixed by putting the bent parts 1, 1' formed on both sides of the roof on the upper parts of the right and left side walls 7, 8 in the side wall parts so that the outer side may be covered. Further, a bent part 5 formed on the upper part of the inner wall 6 in the side wall part is bent inside and overlapped on the roof and they are suitably fixed at the overlapped positions. In addition, the bent parts 9, 9' formed on both left and right sides of the door part C formed with the door 11 at the center and the edge of the opening of the side wall are overlapped, fixed, and assembled. COPYRIGHT: (C)2004,JPO
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