| 摘要 |
In order to inexpensively improve the rigidity and quality of joining portions using existing welding equipment when overlapping and joining a number of panels, such as an inner sash, an outer sash, a door inner panel, and a door outer panel, the present invention provides a sash door structure in which: an outer sash (7) and an inner sash (6) of a sash portion (4) are arranged between a door outer panel (3) and a door inner panel (2) of a door body (5); the outer sash, the inner sash, and the door inner panel are fixed by spot welding (28, 40); and hem-flanges (23, 34) on the vehicle front and rear ends of the door outer panel are swaged on the door inner panel. In the sash door structure, the vehicle front and rear end portions of the door outer panel (3) and the door inner panel (2) are extended upward beyond a door belt line (L1) of the door body (5) to form upward extension portions (16, 24, 33, 41), and the sash portion (4) is sandwiched in the door thickness direction between the upward extension portions. |
