| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a three-dimensional structure that can be easily constructed by use of fewer types of materials. <P>SOLUTION: A three-dimensional structure 1 is a polygon-shaped reticular structure and formed by fittingly connecting, to each other, seven types of frame bars A,B,C,G,H,I,J made of a wooden plate in which the cross sections thereof are rectangular and the widths, thicknesses and lengths thereof are substantially the same, via a fitting connection part 2. The fitting connection part 2 which composes the three-dimensional structure 1 is formed by a combination of any three of the seven types of frame bars A,B,C,G,H,I,J and an area surrounded by these frame bars A,B,C,G,H,I,J is in a hexagonal or pentagonal shape. The fitting connection part 2 is formed by fittingly connecting recesses, each being formed in a circumference of any three of the seven frame bars A,B,C,G,H,I,J, to each other. In the fitting connection part 2, the sum of the angle (interior angle) formed by frame bars adjacent to each other is greater than 300 degrees and less than 360 degrees. <P>COPYRIGHT: (C)2013,JPO&INPIT |
