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发明授权
CN104061265B 防振装置 失效 - 权利终止

防振装置
摘要：
本发明的目的在于，提供一种能够确保低频区域的阻尼力的同时能够实现高频区域的低动态弹簧特性的防振装置。在连结构件的轴向输入的负载在规定值以下的情况下，就动态弹簧常数而言，第一衬套（10）设定成大于第二衬套（20），就损耗因数而言，第二衬套（20）设定成大于第一衬套（10）。另一方面，在连结构件（30）的轴向输入的负载超出规定值的情况下，就动态弹簧常数而言，第一衬套（10）设定成小于第二衬套（20）。相对于负载在规定值以下的低频率的振动，能够通过第二衬套（20）确保阻尼力，相对于负载超出规定值的高频率的振动，能够通过第一衬套（10）实现低动态弹簧特性。
摘要（英）：

[Problem to be Solved] To provide an antivibration device that can realize low dynamic spring characteristics in a high vibration region while securing a damping force in a low vibration region. [Solution] In the case where a load input in the axial direction of a coupling member is a predetermined value or smaller, the dynamic spring constant of a first bush 10 is set larger than that of a second bush 20, and the loss factor of the second bush 20 is set larger than that of the first bush 10. On the other hand, in the case where the load input in the axial direction of the coupling member 30 exceeds the predetermined value, the dynamic spring constant of the first bush 10 is set smaller than that of the second bush 20. A damping force can be secured by the second bush 20 relative to vibration in a low frequency in which the load is the predetermined value or smaller, and low dynamic spring characteristics can be realized by the first bush 10 relative to vibration in a high frequency in which the load exceeds the predetermined value.

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