| 摘要 |
1. A coffin consisting of a case (1) and of a cover element (2), said case (1) having two bottom walls (3 and 4), positioned one over the other and spaced apart from each other, the upper bottom wall being bored by holes (7), while the lower bottom wall (4) consists of a solid wall, the case (1) and the cover element (2) of the coffin being formed by composite walls, each of which comprises an outer sub-wall (1a and 2a) and an inner sub-wall (1b and 2b) made of plastic material, characterized by the fact that the case and the cover element are each formed in a sole body, by the fact that the outer sub-walls (1a, 2a) and the inner sub-walls (1b, 2b) consist of reinforced plastic, sufficiently elastic, material, adapted to withstand the tensile, compressive, bending and shearing forces, as well as the impacts and the etchings of corrosive fluids, and by the fact that said outer and inner sub-walls are separated from each other by an interposed layer (1c, 2c) of foamed polyurethan. |
