| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a frame structure of a railway vehicle having an improved riding comfort by enhancing flexural rigidity, and having lightweight. <P>SOLUTION: A side frame 14A includes: an outside plate part 14Aa; an inner side plate part 14Ab; and a web part 14Ac, and has a double skin structure made of aluminum alloy wherein the outside plate part 14Aa and the inner side plate part 14Ab are combined by the web part 14Ac. A side window opening 13 contains an outside window opening 13a formed at the outside plate part 14Aa side, and an inside window opening 13b formed at the inner side plate part 14Ab side, and all are oblong holes of ellipse shape. The inside window opening 13b is formed by excising the inner side plate part 14Ab and the web part 14Ac and the opening area is larger than the outside window opening 13a. The side window opening 13 has a structure of single skin. <P>COPYRIGHT: (C)2012,JPO&INPIT |
