| 摘要 |
PURPOSE: A jointing method of a cryptomeria rectangular lumber is provided to remove the gap between cutting surfaces and make the cutting surfaces coincide by making the surface shape of each cryptomeria rectangular lumber identical, thereby improving adhesiveness between the lumbers by enhancing cohesive power. CONSTITUTION: A jointing method of a cryptomeria rectangular lumber includes the following steps: A cryptomeria rectangular lumber of which the outer cover is stripped off is cut and a certain size of a first rectangular lumber(10) and a second rectangular lumber(20) are prepared; The one side of the first rectangular lumber and the one side of the second rectangular lumber are contacted; One part of the width direction of a saw blade cuts out one side of the first rectangular lumber by sawing along the contact surface while the first rectangular lumber and the second rectangular lumber are contacted through the previous step, and at the same time, a first cutting surface and a second cutting surface interlocked with the first rectangular lumber and the second rectangular lumber are formed by cutting the one side of the second rectangular lumber by the remaining width direction of the saw blade; Glue is spread on at least one of the first cutting surface and the second cutting surface and joints the first rectangular lumber and the second rectangular lumber. |
