To continuously produce a metallic wall plate covered with a rear surface material on the rear surface of a foamed resin core material filled in a groove-shaped surface material made of a metallic plate with deep ruggedness patterns.
The following press forming is successively repeated as follows, that is, after a metallic plate 1aa being unwound continuously, is made flexible in a loop shape, it is clamped, and is subjected to press forming in a prescribed position by the die of a press device 6 having a press forming part producing the projecting and recessing patterns with a depth of 2 mm or over in the forming position of a surface part exposed on a wall surface in a working state. After releasing clamping, the die in a press state is moved on the downstream side by a press length of one time, and the metallic plate 1aa is clamped again, and the die is returned to a press position. And, after making the metallic plate 1aa flexible again in the loop shape, edge parts on both sides are bent, they are formed to a front material 1a whose cross-section having the fitting part of female die and male die, is a groove shape. In the groove of the front material 1a, resin 3a with a foaming property is injected, its rear side is covered by a rear material 1f, the resin 3a with a foaming property, is made to foam and is cured, and the groove of the front material 1a, is filled with a foaming resin core material.
TSUKIJI NORIO
TAKAI SHIGEMITSU
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