| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a good riding comfort of a railroad vehicle by increasing the bending rigidity of the structural body while minimizing an increase in the mass of the structural body. <P>SOLUTION: A reinforcement plate 7 is stuck on the inside of a roof structural body 1 at the longitudinal center of a railroad vehicle structural body 10 formed of a roof structural body 1, side structural bodies 2, an underframe 3, and end structural bodies 4. The sticking range of the reinforcement plate 7 in the longitudinal direction of the railroad vehicle structural body 10 is between two caps 6. The lateral sticking range of the roof structural body 1 is approximately half the lateral length of the roof structural body 1. The plate thickness of the reinforcement plate 7 becomes thicker as the vertical height of the roof structural body 1 is increased. With this constitution, since the deformation of the roof structural body 1 at the longitudinal center of the railroad structural body 10 where a large deformation is produced can be suppressed, the bending rigidity of the railroad structural body 10 can be efficiently increased. Namely, since the bending vibration in the vertical direction of the railroad vehicle can be suppressed, excellent riding comfortableness can be provided. <P>COPYRIGHT: (C)2008,JPO&INPIT</p> |
