To provide a light structural member for a railway vehicle capable of jointing an outer plate and an outer plate reinforcing member without a restraining jig of a complicated mechanism.
In this structural member 11 for a railway vehicle, a bent portion 37 is formed at a tip of a flange part 35 of an outer plate reinforcing member 31, so as to improve rigidity at a jointed portion. Therefore, there is no need of restraint with a jig of a complicated shape, so that the outer plate reinforcing member 31 can be brought into contact with the outer plate 21 by a simple manner. In this structural member 11 for the railway vehicle, in view of a convergence angle of laser beams and a curvature radius of a corner part R2 formed by the flange part 35 and a web part 33, an angle formed by the corner part R2 is larger than 90°. Therefore, a laser welding part W can be formed near the corner part R2 at a flat portion 36 of the flange part 35. Thereby, a weight increase of the structure due to unnecessary restraint tolerance or welding tolerance can be avoided.
KAWADA NAOKI
ENDO SHOTA
KOSHIKAWA JUN
| JPS58194959U | 1983-12-24 | |||
| JP2003191842A | 2003-07-09 | |||
| JP2007168673A | 2007-07-05 | |||
| JP2008247264A | 2008-10-16 | |||
| JP2005329412A | 2005-12-02 | |||
| JPH03157261A | 1991-07-05 | |||
| JP2000247227A | 2000-09-12 | |||
| JPS58194959U | 1983-12-24 | |||
| JP2003191842A | 2003-07-09 | |||
| JP2007168673A | 2007-07-05 | |||
| JP2008247264A | 2008-10-16 | |||
| JP2007168546A | 2007-07-05 |
| WO1997048587A1 | 1997-12-24 | |||
| WO1997048587A1 | 1997-12-24 | |||
| US1509887A | 1924-09-30 |
Yoshiki Kuroki
Hiromitsu Nakayama