Rail bogie for transporting semi-trailers with vertically movable king pin assemblies on common frame
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United States of America Patent
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-
Apr 28, 1992
Grant Date -
N/A
app pub date -
Jun 22, 1990
filing date -
Jun 22, 1990
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A rail bogie for hooking with semi-trailers and the like road vehicles comprises a truck having a wheel-mounted chassis and a fifth-wheel frame above the chassis. Power jacks or inflatable balloons are mounted between this chassis and the frame for moving the latter vertically between a low and a high positions relative to the chassis. There is also provided a locking combination on the frame and on the chassis capable of holding the frame releasably locked to the chassis when the said frame has reached the high position aforesaid. The bogie also includes a horizontal fifth-wheel support mounted on the frame for pivotal movement about a vertical axis whereby to allow it to sway laterally and a fifth-wheel is mounted at the other end of the support. The bogie further includes an assembly automatically centering the first wheel on the frame when the latter reaches its high position.
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