LAMINATED LUMBER AND ITS MANUFACTURING METHOD

• Main Authors: INDO MASAHIRO, NAKAJIMA TADAHIRO
• Format: Patent
• Language: English; Japanese
• Published: 31.10.2019
• Subjects: MANUFACTURE OF SPECIFIC WOODEN ARTICLES; NAILING OR STAPLING MACHINES IN GENERAL; PERFORMING OPERATIONS; TRANSPORTING; WORKING OF WOOD NOT PROVIDED FOR IN SUBCLASSES B27B - B27L; WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL

To provide a laminated lumber capable of obtaining sufficient bond strength, and its manufacturing method.SOLUTION: In a laminated lumber 10, end parts of lumbers 12a and 12b are jointed together. A plurality of peak parts 14 protruding in an X direction and a plurality of valley parts 16 dented in the X direction for the peak parts 14 to be fit thereto are provided to the lumbers 12a and 12b, respectively. A through hole 20 penetrating in a Y direction is provided to a joint portion 18 where the peak part 14 and the valley part 16 are mutually engaged. A pair of plugs 22 are pressed in the through hole 20 from both surfaces in the Y direction. The peak parts 14 and the valley parts 16 are alternately formed along the Y direction, and extended along a Z direction, respectively.SELECTED DRAWING: Figure 1 【課題】十分な接合強度が得られる集成材およびその製造方法を提供することを目的とする。【解決手段】集成材１０は木材１２ａと１２ｂとの端部同士が継ぎ合わされている。木材１２ａおよび１２ｂにはそれぞれ、Ｘ方向に突出する複数の山部１４と、Ｘ方向に窪み山部１４が嵌まり込む複数の谷部１６とが設けられている。山部１４と谷部１６とが相互に噛み合わされた継合箇所１８にはＹ方向に貫通する貫通孔２０が設けられている。貫通孔２０には、Ｙ方向両面から一対の栓２２が圧入されている。山部１４および谷部１６はＹ方向に沿って交互に形成されており、それぞれＺ方向に沿って延在している。【選択図】図１