| 摘要 |
PURPOSE:To obtain a plate-shaped metallic molding which is lightweight and is highly rigid by connecting a pair of inside walls in the cavity of the metallic molding having the cavity by a required number of connecting members. CONSTITUTION:The metallic mold 11 has internally the cavity 13 and the plate- shaped connecting members 15, 15... connect the opposed surfaces of the inside wall of the cavity 13. The connecting members 15 are formed integrally with the molding 11 and are made hardly breakable even if the members are pressed from an arrow direction. The spaces between the members 15, 15... are utilizable as the insertion path for an electric cord if said members are made into the plate shape. The diameter and thickness of the rod- and plate-shaped members 15, 15 are adequately adjustable. |
