Bridging span structure
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United States of America Patent
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-
Jan 26, 1999
Grant Date -
N/A
app pub date -
Mar 28, 1997
filing date -
Aug 2, 1995
priority date (Note) -
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status (Latency Note)
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Abstract
A bridging span structure for the crossing of ditches by vehicles has a locking mechanism for locking an upwards swingable access jib to a central box of a bridging span element. The locking mechanism includes at least two tie-rod elements pivotally connected to the access jib by two stationary transverse shafts, and two transverse locking shafts with a controlled displacement permitting fastening of both tie-rod elements to the central box in two different positions, respectively, corresponding to lower and upwards swung positions, respectively, of the upwards swingable access jib, the invention being usable in particular by the Engineering Corps.
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