| 摘要 |
PROBLEM TO BE SOLVED: To provide laminated lumber which is formed by press-fitting connection member in the connection holes formed by the grooves formed to the butt surfaces of a plurality of material lumbers, can facilitate the press-fitting work of the connection member and is integrally connected strongly. SOLUTION: The connection member 3, which is penetrated in the connection holes formed between the butt surfaces of the material lumber 1 is constituted of a pair of connection pieces 14 and 14 equal to the material lumber 1 in length and an insertion piece 15 and the respective connection pieces 14 form a C-shape wherein the press-fitting protruded parts 16, which are penetrated in the connection groove parts 8 formed on the same left and right sides of the connection holes, are provided in opposed relationship. A pair of the connection pieces 14 are inserted in the connection holes over the total length of each of the connection holes in the direction making the press-fitting protruded parts 16 opposite to each other and the insertion piece 15 is forcibly inserted in the gap between the connection pieces 14 to penetrate the press-fitting protruded parts 16 in the connection groove parts 8 corresponding to each other. COPYRIGHT: (C)2006,JPO&NCIPI
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