| 摘要 |
PROBLEM TO BE SOLVED: To provide a lining plate comprising a substrate layer formed by applying a substrate agent on a front surface, a side surface, and a rear surface of a wooden core plate material, a fiber sheet layer laminated on the front surface of the substrate layer by impregnating a resin adhesive, a net-like resin sheet layer laminated on a front surface of the fiber sheet layer by impregnating the resin adhesive, and installing a peripheral frame material on the core plate material, covering the side surface and a corner edge surface thereof, the lining plate reducing weight because the core plate material thereof is made of wood, and facilitating transportation and installation even when a plurality of the lining plates is needed according to suit a size of an opening of an excavated groove and others, thereby enhancing convenience in use.SOLUTION: A lining plate comprises: a substrate layer 2 formed by applying a substrate agent S on a front surface, a side surface, and a rear surface of a wooden core plate material 1; a fiber sheet layer 3 laminated on the front surface of the substrate layer by impregnating a resin adhesive K; a net-like resin sheet layer 4 laminated on a front surface of the fiber sheet layer by impregnating the resin adhesive; and installing a peripheral frame material 5, covering the side surface and a corner edge surface thereof, on the core plate material.SELECTED DRAWING: Figure 1 |
