WOODEN MEMBER JOINT STRUCTURE

To provide a wooden member joint structure that can improve the strength.SOLUTION: A wooden member joint structure 100 comprises: a first protrusion part 122; a first recess part 234 that recesses from a second surface 233, which faces to the other way of a second direction on a second member 2, towards one way of the second direction to engage with the first protrusion part 122; a second recess part 134 that recesses from a third surface 133, which faces to one way of the second direction on a first member 1, towards the other way of the second direction; a second protrusion part 222 that protrudes from a fourth surface 221, which faces to the other way of the second direction on the second member 2, towards the other way of the second direction to engage with the second recess part 134; an interstice formed between the first member 1 and the second member 2; and a first plug member 4 that is engaged in the interstice to restrict the first member 1 and the second member 2 from moving away relatively from each other in the second direction. The first protrusion part 122, the first recess part 234, the second recess part 134 and the second protrusion part 222 each have a surface facing to the aforesaid second direction, which is at least partially formed with a curved surface.SELECTED DRAWING: Figure 2 【課題】強度を向上させることができる木製部材の接合構造を提供する。【解決手段】木製部材の接合構造１００は、第１凸部１２２と、第２部材２における第２方向の他方側を向く第２面２３３から第２方向の一方側に凹み、第１凸部１２２と嵌合する第１凹部２３４と、第１部材１における第２方向の一方側を向く第３面１３３から第２方向の他方側に凹む第２凹部１３４と、第２部材２における第２方向の他方側を向く第４面２２１から第２方向の他方側に突出し、第２凹部１３４と嵌合する第２凸部２２２と、第１部材１と第２部材２との間に形成される隙間と、隙間に嵌合されて、第１部材１と第２部材２とを、相対的に、第２方向に離間する方向への移動を拘束する第１栓部材４と、を備え、第１凸部１２２、第１凹部２３４、第２凹部１３４及び第２凸部２２２は、それぞれ前記第２方向を向く面の少なくとも一部が曲面で形成されている。【選択図】図２