| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a vibration control device capable of reducing the dynamic spring constant in a high-frequency region in which the resonance of a vibration control base itself is predominant. <P>SOLUTION: The vibration control device 10 includes: a cylindrical first attachment fixture 12; a second attachment fixture 14 arranged on the axial core part upper side of the first attachment fixture; and the vibration control base 16 made of rubber-like elastic material inserted between both attachment fixtures, wherein the vibration control base is formed as a tapered wall part 30, the diameter of which becomes small toward the second attachment fixture 14 from the first attachment fixture 12. Therein, convex grooves 46 and concave grooves 48 extended in the inclined direction P of the tapered wall part 30 are alternately arranged in the circumferential direction C on at least one side of the inner peripheral surface 30A and the outer circumferential surface 30B of the tapered wall part 30 of the vibration control base and, thereby, thick thickness parts 50 and thin thickness parts 52 extended in the inclined direction P are alternately arranged in the circumferential direction C of the tapered wall part 30. <P>COPYRIGHT: (C)2012,JPO&INPIT |
