| 摘要 |
PROBLEM TO BE SOLVED: To solve a trouble caused owing to deformation of a wood panel of a door body consisting of a plurality of wood panels.SOLUTION: A lower surface part 21 of an upper first panel between two arbitrary panels adjoining a door body above and below comprises a first longitudinally long arcuate surface 210 extending from a first side to a second side and a first upper surface 211 extending from an upper end of the first longitudinally long arcuate surface 210 to a surface part on the second side of the first panel, and an upper surface part 20 of the second panel on a lower side comprises a second longitudinally long arcuate surface 200 extending from a first side to a second side and a second upper surface 201 extending from an upper end of the second longitudinally long arcuate surface 200 to a surface part on the second side of the second panel. In a vertical attitude, the upper surface 211 of the first panel abuts on the second upper surface 201 of the second panel, an arcuate space S1 is formed between the first longitudinally long arcuate surface 201 of the first panel and the second longitudinally long arcuate surface 200 of the second panel, and a fulcrum P of rotation of the first panel relative to the second panel is positioned outside the surface side on the second side of the upper surface part 20 of the second panel.SELECTED DRAWING: Figure 14 |
