| 摘要 |
PROBLEM TO BE SOLVED: To solve a problem in which a connection pipe for connecting the rear end of left-right side members of a seat cushion frame, is only welded so that a welding bead becomes the designated length.SOLUTION: A mark 40 becoming a starting point position of a welding bead is provided in side members for welding a connection rod 22Re to the rear end of the side members. The mark 40 is provided in advance in the side members around an installation hole 20a of the inserting left-right side members of the end of the connection pipe 22Re, and for example, is formed as a marking-off line stamped on the side members by marking-off. The connection pipe is welded to the side members by executing welding for extending the welding bead W by the specific length in the predetermined direction according to a specification drawing with the marking-off line as the starting point position. For example, two marking-off lines 40a and 40b are provided, and the starting point position of the welding bead is indicated as a range, and a reference position is indicated by also providing a marking-off line 40c in the center of the two marking-off lines. |
