| 摘要 |
PURPOSE:To freely incline a pipe onto a plane, and to junction it with high strength, by forming a welding part of a pipe on a plate, like a spherical surface projecting to one end side of the pipe, and welding one end of the pipe onto the upper surface of this spherical part. CONSTITUTION:For instance, in a rear arm, a junction part of each piller pipe 23a, 23b in a reinforcement 25 is formed like spherical parts 25a, 25b projecting to the lower end side of each line 23a, 23b. Therefore, when the lower end of each pipe 23a, 23b is cut in the direction falling at an almost right angle with the axial direction, even if each pipe 23a, 23b is inclined freely, the whole circumferential edge of the lower end of each pipe 23a, 23b is made to press-contact with a part of the upper surface of each spherical part 25a, 25b. Accordingly, since no gap is generated between them, junction strength of the pipes 23a, 23b against the reinforcement 25 is raised. |
