To provide a railroad vehicular damper capable of reducing costs and improving riding comfort in a vehicle.SOLUTION: A railroad vehicular damper 1 includes: a cylinder 2; a rod 3 freely movably inserted into the cylinder 2; a piston 4 which is fitted to the rod 3, freely movably inserted into the cylinder 2, and divides the cylinder 2 into an expansion side chamber R1 and a pressure side chamber R2; a tank 5; a rectifying passage 6 allowing only a flow of liquid heading for the expansion side chamber R1 from the pressure side chamber R2; a suction passage 7 allowing only the flow of liquid heading for the pressure side chamber R2 from the tank 5; an attenuation passage 8 allowing only the flow of liquid heading for the tank 5 from the expansion side chamber R and giving resistance to the flow of liquid; a bypass passage 9 which communicates the expansion side chamber R1 and the tank 5 by way of the attenuation passage 8; and an on-off valve OV opening/closing the bypass passage 9 by inertia when acceleration is inputted to the carriage T.SELECTED DRAWING: Figure 2

    【課題】コストを低減可能であって、かつ、車両における乗心地を向上できる鉄道車両用ダンパの提供である。【解決手段】鉄道車両用ダンパ1は、鉄道車両用ダンパ1は、シリンダ2と、シリンダ2内に移動自在に挿入されるロッド3と、ロッド3に取り付けられてシリンダ2内に移動自在に挿入されるとともにシリンダ2内を伸側室R1と圧側室R2とに区画するピストン4と、タンク5と、圧側室R2から伸側室R1へ向かう液体の流れのみを許容する整流通路6と、タンク5から圧側室R2へ向かう液体の流れのみを許容する吸込通路7と、伸側室R1からタンク5へ向かう液体の流れのみを許容するとともに液体の流れに対して抵抗を与える減衰通路8と、減衰通路8を迂回して伸側室R1とタンク5とを連通するバイパス路9と、台車Tに加速度が入力されると慣性によってバイパス路9を開閉する開閉弁OVとを備える。【選択図】図2


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    Title :

    RAILROAD VEHICULAR DAMPER


    Additional title:

    鉄道車両用ダンパ


    Contributors:

    Publication date :

    2020-02-13


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    F16F SPRINGS , Federn / B61F Untergestelle für Schienenfahrzeuge, z.B. Fahrgestellrahmen, Drehgestelle oder Anordnungen der Radsätze , RAIL VEHICLE SUSPENSIONS, e.g. UNDERFRAMES, BOGIES OR ARRANGEMENTS OF WHEEL AXLES



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