| 摘要 |
PURPOSE:To make it possible to easily and simply change the vibration of a dynamic damper, by attaching a weight to a rod-like vibrator with the use of fixing means which may adjust the vertical position of the weight. CONSTITUTION:A rod-like vibrator 1 is pivotally attached at its base end to a structural frame 3 through the intermediary of a universal joint 2, and further, the intermediate section of the vibrator 1 is coupled to the frame 3 through the intermediary of a vibration absorbing means such as, for example, a spring 8 acting thereupon in the horizontal direction. A weight 4 is attached to the front end section of the rod-like vibrator 1 by means of fixing means 5, 6, 15 through 17 which may adjust the vertical position of the weight 4, thereby it is possible to easily change the frequency of vibration of a dynamic damper by adjusting the vertical position of the weight. |
