PANEL, PANEL PIECE, AND PANEL MANUFACTURING METHOD

摘要

[PROBLEMS] To manufacture a lightweight and highly rigid panel at low cost. [MEANS FOR SOLVING PROBLEMS] This panel comprises a pair of panel pieces having a flat surface part, fitting projected parts disposed around the flat surface part, projectedly formed periodically in a prescribed one direction relative to the flat surface part, and having wall surfaces and top faces formed at the tip parts of the wall surfaces, and fitting recessed parts surrounded by the wall surfaces of the fitting projected parts and the flat surface part. The top faces and the flat surface part are brought into contact with each other by fitting the fitting projected parts of one of the panel pieces into the fitting recessed parts of the other of the panel pieces.