| 摘要 |
PROBLEM TO BE SOLVED: To provide a member connecting tool used for a structural material of a wooden building requiring strength by preventing easily breakable timber from causing a crack in the fiber direction like a solid cedar by driving of a drift pin. SOLUTION: A metallic material 11 is integrated into a main trunk member S by a bolt 12 and a nut 20, and the metallic material 11 is integrated into a joining member K by the drift pin 13, and in a fastening part for connecting the main trunk member S and the joining member K in a J shape, a reinforcing shaft 14 forming a spiral projection strip 25 on a side peripheral surface is embedded in the orthogonal direction to woody fiber in the vicinity of an end surface of the joining member K. Thus, the spiral projection strip 25 bites in the joining member K, and since tearing-off along the woody fiber can be prevented, strength endurable against the driving such as the drift pin 13 is secured, and comparatively easily breakable timber can be used as the structural material. COPYRIGHT: (C)2007,JPO&INPIT
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