To provide an axle spring gear capable of adjusting only a spring constant in a longitudinal/lateral direction without changing a spring constant in a vertical direction.SOLUTION: The present invention relates to an axle spring gear comprising: an axle spring body 1 including an axle core 2, an outer cylinder 3 and an elastic part 4 interposed between the axle core 2 and the outer cylinder 3; and a cylindrical auxiliary elastic member 12 interposed between the axle core 2 and the outer cylinder 3 in a removable manner. The auxiliary elastic member 12 is internally fitted and fixed to the outer cylinder 3 and is freely vertically movable relative to the axle core 2 while following relative displacement of the axle core 2 and the outer cylinder 3 in a vertical direction Z, or externally fitted and fixed to the axle core 2 and is freely vertically movable relative to the outer cylinder 3 while following the relative displacement of the axle core 2 and the outer cylinder 3 in the vertical direction Z.SELECTED DRAWING: Figure 5

    【課題】 上下方向のばね定数を変えることなく、前後・左右方向のばね定数のみ調整可能な軸ばね装置を提供することを目的とする。【解決手段】 軸芯2と、外筒3と、軸芯2及び外筒3の間に介在する弾性部4とを備えた軸ばね本体1と、軸芯2と外筒3の間に着脱可能に介装された筒状の補助弾性部材12とを備え、補助弾性部材12は、外筒3に内嵌固定され、軸芯2と外筒3との上下方向Zの相対変位に追従して軸芯2に対して相対的に上下動自在に構成され、又は、軸芯2に外嵌固定され、上下方向Zにおける軸芯2と外筒3の相対変位に追従して外筒3に対して相対的に上下動自在に構成された軸ばね装置とする。【選択図】図5


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    Title :

    AXLE SPRING GEAR


    Additional title:

    軸ばね装置


    Contributors:

    Publication date :

    2022-07-04


    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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