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    • 10. 发明授权
    • Cam operated hatch cover holddown
    • 凸轮操作舱盖盖住
    • US4057020A
    • 1977-11-08
    • US662192
    • 1976-02-26
    • William R. HalliarMarvin Stark
    • William R. HalliarMarvin Stark
    • F16J13/18B61D39/00B65D45/20
    • F16J13/18Y10T292/202Y10T292/225
    • A hatch latch mechanism for a railway hopper car having a longitudinally extending handle pivotally and slidingly linked to a hopper car roof which can be upwardly and rearwardly rotated to extend entrappingly across an outboard projection of a hatch cover holddown bar. The handle includes a bottom camming portion downwardly engageable with the outboard projection to compress the hatch cover gasket as the handle is rearwardly rotated to seal the hatch; thereafter, the handle is urged forward in slidingly upward engagement about the outboard projection of the holddown bar by the upward force of the compressed gasket against the hatch cover to insure automatic positive locking of the latch.
    • 一种用于铁路货车的舱口闩锁机构,其具有纵向延伸的手柄,其可旋转地并滑动地连接到料斗车顶,所述料斗车顶可以向上和向后旋转以延伸跨越舱口盖保持杆的外侧突出部延伸。 手柄包括底部凸轮部分,该底部凸轮部分可与外侧突起部向下接合,以在手柄向后旋转以压缩舱口盖时压缩舱口盖垫片; 此后,手柄通过压缩垫片朝向舱口盖的向上的力向前滑动地向前推动,围绕压杆的外侧突出部,以确保闩锁的自动正锁定。