| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a fuel tank capable of suppressing sudden approach and separation of a pair of opposed walls of a tank main body.SOLUTION: A fuel tank 10 includes an upper cylinder body 18 and a lower cylinder body 20 projected toward each other from a top plate 12 and a bottom plate 14 opposed to each other of a tank main body 11. Further, the fuel tank 10 is provided with a resistance generation structure 26 which generates a resistance force in accordance with a relative displacement of the upper cylinder body 18 and the lower cylinder body 20. The resistance generation structure 26 generates the resistance force in accordance with the extent of speed of the relative displacement or the magnitude of the force in the approach and separation direction of the top plate 12 and the bottom plate 14.</p> |
