| 摘要 |
<p>PROBLEM TO BE SOLVED: To quickly converge vibration of a suspended object that is rotatably suspended and supported on a ceiling side.SOLUTION: When a rod 17 is rotated forward and upward from a vertical attitude, a bracket 33 is rotated so as to lift a projection part 41, the lower end part of a rail 31 is separated from the lower end of the stay 35, and a shock absorber 53 is elongated. When the rod 17 rotated forward and upward is rotated backward and downward and is returned to the vertical attitude, the bracket 33 is rotated so as to descend the projection part 41 and is returned to an original attitude, the shock absorber 53 is compressed to gradually approach the lower end part of the rail 31 to the lower end of the stay 35.</p> |
