| 摘要 |
PURPOSE:To adjust a stress which acts on a leaf spring to be small by making the natural frequency of a dynamic vibration damper adjustable. CONSTITUTION:The position of a weight 10 can be vertically adjusted by loosening upper and lower nuts 12, 12 which are screwed over a screw stock 11, moving the weight up or down along a guide bar 9, and tightening the nuts 12, 12. Thereby, the length l from a swinging shaft 3 to the center of gravity of the weight 10 can be varied by raising or lowering the weight 10, to vary the natural frequency of the dynamic vibration reducer. Accordingly, the displacement of a leaf spring 8 can be made small, reducing a stress which acts on the leaf spring. |
