PURPOSE: To obtain sufficient compressive strength and presentable appearance by fitting a metallic frame of approximately U-shape cross section to the peripheral edge part of a non-metallic plate, and fixing them rigidly in a multi-purpose panel used as a component member for room partitioning or the like.
CONSTITUTION: A plate 1 is formed by welding or bonding surface sheets 4, 5, made of the same or different material as/from an intermediate sheet 3, to both side faces of the intermediate sheet 3, made of polyethylene or other synthetic resin material, provided with hollow swollen parts 2 of circular or other shape formed on one side face thereof. A frame 6 is formed of plates such as steel, aluminum, an aluminum alloy or stainless steel into approximately U-shape cross section. The frame 6 of the approximately same length in each side as the plate 1 is fitted to each peripheral edge side of the plate 1 in such a way as to bring its base part 7 into contact with the end face 1a of the plate 1 and to clamp the plate 1 from both sides by both side pieces 8 as well as to attach the adjoining inclined faces of the frame 6 closely to each other, and both are fixed rigidly.
AIZAWA KAZUO
NAKAMURA TATSUYA
NITTA TATSUYA