The present invention aims to provide a vibration isolating device with which it is possible to suppress an increase, to or above a prescribed value, in a dynamic spring constant. The bored portions 233b penetrating in an axis O direction are formed in the regions at the outer sides, in a horizontal direction, of an inner cylinder member 10, in a state in which an electric automobile vibration isolating device 300 is arranged in a vehicle body of an automobile, and linking portions 333e are provided to link the inner surfaces of the bored portions 233b in a radial direction centered at an axisO, so that the vibration isolating effect of the linking portions 333e can thus be enhanced, and it is possible to suppress the resonance of an upper side elastic portion 233c and a lower side elastic portion 233d of a vibration isolating base body 330 due to vibrations resulting from the drive of a vibration source. As a result, it is possible to suppress an increase, to or above a prescribed value, in the dynamic spring constant of the electric automobile vibration isolating device 300.

    技术问题:提供一种能够抑制动态弹簧常数增高至规定值以上的防振装置。解决手段:在电动汽车用防振装置(300)配设于汽车的车身的状态下的内筒部件(10)的水平方向外侧的区域形成有沿着轴O方向贯通的凹缺部(233b),且具备在以轴O为中心的径向上连结该凹缺部(233b)的内面间的连结部(333e)。由此,能够提高连结部(333e)的防振效果,并抑制防振基体(330)的上方侧弹性部(233c)及下方侧弹性部(233d)因振动源的驱动所引起的振动而共振。其结果为,能够抑制电动汽车用防振装置(300)的动态弹簧常数增高至规定值以上。


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    Title :

    Vibration isolating device


    Additional title:

    防振装置


    Contributors:

    Publication date :

    2020-07-10


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    F16F SPRINGS , Federn / B60K Anordnung oder Einbau von Antriebseinheiten oder von Kraft- bzw. Drehmomentübertragungen in Fahrzeugen , ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES



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