| 摘要 |
PROBLEM TO BE SOLVED: To assemble a building door formed in predetermined plate thickness by interposing a frame member and a core material between a pair of front and rear face plates, with high work efficiency while enhancing design. SOLUTION: A front face plate 7 out of the pair of front and rear face plates 7, 6 is composed of a center panel 8 and four peripheral side panels 9, 10, 11, 12. At connection parts of these panels, e.g., the connection part of the left side panel 9 and center panel 8, the edge part of the left side panel 9 is bent in a door thickness direction to form a first bent piece 9a, and a connecting groove 9b provided with a groove inlet part 9c narrower than the groove depth is formed at the tip of the first bent piece 9a, while the edge part of the center panel 8 is bent in the door thickness direction to form a second bent piece 8a, and a fitting part 8b having a width dimension H2 wider than the groove width H1 of the connecting groove 9b is formed at the tip of the second bent piece 8a. The fitting part 8b is pushed into the groove depth from the groove inlet part 9c of the connecting groove 9b to connect the left side panel 9 and center panel 8. COPYRIGHT: (C)2006,JPO&NCIPI
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