To provide a technology which can achieve an improvement of riding comfort in a high-speed region of a piston speed and an improvement of operation stability in a low-speed region at the same time.SOLUTION: A groove 39 which is annularly recessed from a first outer round part 37 is formed in a piston 31. A plurality of laminates which are arranged such that they are supported on the piston 31 at internal peripheral sides and their external peripheral sides are free ends, include a first laminate 101 seated on the first outside round part 37, a second laminate 102 arranged on a side opposite to the piston 31 with respect to the first laminate 101, and a third laminate 103 arranged on a side opposite to the second laminated 102. The second laminate 102 has a recess which is formed in an external peripheral part and partially warps the first laminate 101 when pressure in a second oil chamber is higher than a pressure in a first oil chamber, and a ring 142 which warps the third laminate 103 so that an external peripheral part is located on the side opposite to an internal peripheral part when there is no pressure difference occurring between the first oil chamber and the second oil chamber.SELECTED DRAWING: Figure 2

    【課題】ピストン速度が高速領域での乗り心地の向上と低速領域での操縦安定性の向上とを両立させることができる技術を提供する。【解決手段】ピストン31には、第1外側ラウンド部37から環状に凹む溝39が形成され、ピストン31に内周側が支持されて外周側が自由端となるように配置された複数の積層体は、第1外側ラウンド部37に着座する第1積層体101と、第1積層体101に対してピストン31とは反対側に配置された第2積層体102と、第2積層体102に対して前記反対側に配置された第3積層体103とを有し、第2積層体102は、外周部に形成されて第2油室内の圧力が第1油室内の圧力よりも高くなったときに第1積層体101を部分的に撓ませる凹部と、第1油室と第2油室に圧力差が生じていないときに外周部が内周部よりも前記反対側に位置するように第3積層体103を撓ませるリング142とを有する。【選択図】図2


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    Title :

    SHOCK ABSORBER AND SUSPENSION DEVICE


    Additional title:

    緩衝装置、懸架装置


    Contributors:

    Publication date :

    2024-04-11


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    F16F SPRINGS , Federn / B60G VEHICLE SUSPENSION ARRANGEMENTS , Radaufhängungen und Federungen für Fahrzeuge



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