| 摘要 |
<p>PURPOSE:To secure the connection for a cylindrical member with high strength in a simple manner, without requiring the special technique, etc., in the connection work. CONSTITUTION:A part of the side wall of one cylindrical member 1 is formed into a flat surface wall 1a extending in the lengthwise direction, and each opposed groove part 4 is formed at both the side edge parts of the flat surface wall 1a, and a connecting member 3 is formed so that the interval between two opposed plate-shaped engagement parts 3a and 3b spreads toward the top end side from the basic end side through a plate-shaped connection part 3c which is installed integrally between the plate-shaped engagement parts. An engagement projection part 5 which can be fitted into a recessed groove 4 is installed at the basic end parts of the plate-shaped engagement parts 3a and 3b. Each engagement projection part 5 of the connecting member 3 is fitted into each recessed groove 4 of one cylindrical member 1, and one end of the other cylindrical member 2 is fitted from the top end sides of both the plate- shaped engagement parts 3a and 3b, and the engagement projection part 5 is press-attached into each recessed groove 4 of one cylindrical member 1.</p> |
