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    • 4. 发明授权
    • Snubbed railroad car truck
    • 缓冲铁路车辆卡车
    • US4179995A
    • 1979-12-25
    • US849027
    • 1977-11-07
    • John C. Day
    • John C. Day
    • B61F5/12B61F5/28B61F5/46B61F5/50
    • B61F5/12B61F5/28B61F5/46
    • A truck for a railroad car includes two spaced side frames which resiliently support ends of a transversely positioned bolster in a window formed in each side frame. On each side of the bolster is a vertical recess formed having opposing convex-shaped sides which engage with end walls of vertical ribs formed on the inner and outer side of spaced sidewalls of the side frame window. In downwardly projecting pedestal jaws formed at each end of each side frame and having selectively spaced sidewalls are journaled axle ends of a front and a rear wheelset. Interposed between each axle end and a roof of the pedestal jaw is a bearing adapter having a convex top surface to engage with a concave surface of the roof of the side frame pedestal jaw. During travel of the truck, a relative rolling movement between the wheelsets, side frames and bolster may occur because of the interaction of the convex sides of the bolster recess with the ribs of the side frame, and because of a like interaction between the convex top surface of the adapter with the roof of the pedestal jaw.
    • 用于铁路车辆的卡车包括两个间隔开的侧框架,其弹性地支撑在每个侧框架中形成的窗口中的横向定位的摇枕的端部。 在枕垫的每一侧上形成有垂直凹槽,该凹槽形成为具有相对的凸形侧面,该侧面形成在侧框架窗口的间隔侧壁的内侧和外侧上的垂直肋条的端壁。 在形成在每个侧框架的每个端部并且具有选择性间隔的侧壁的向下突出的基座夹爪中,是前轮和后轮轴的轴颈轴端。 插入在每个轴端和基座钳口的顶部之间的是具有凸顶表面的轴承适配器,以与侧框架底座的顶盖的凹面接合。 在卡车行驶期间,由于凸轮凹槽的凸面与侧框架的肋的相互作用,可能会发生轮对,侧框和垫圈之间的相对滚动运动,并且由于凸顶之间的相互作用 适配器的表面与基座钳口的顶部。