| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a vibration control device which effectively reduces a peak value of a dynamic spring constant caused by occurrence of a surging phenomenon to a body rubber between a tube body and a core member without causing weight increase of the vibration control device, and can improve riding quality while preventing reduction in fuel economy of a vehicle when used as, for example, an engine mount by adjusting a generation frequency of the peak. <P>SOLUTION: The vibration control device 1 is provided with a tube body 2, a core member 3 positioned closer to one side of a center axis line of the tube body 2 and arranged coaxially with the tube body 2, and an annular body rubber 4 connecting the inner circumferential surface of the tube body 2 to the core member 3, the body rubber 4 having an outer surface formed in a circular truncated cone being convex on the core member 3 side, wherein the annular body rubber 4 is partitioned into a plurality of virtual regions each having unequal circumferential length, in the circumferential direction of the body rubber 4, and in the partitioned regions, at least the thickness of a part in the radial direction of the body rubber 4 is differentiated mutually. <P>COPYRIGHT: (C)2012,JPO&INPIT |
