FOLDING PONTOON-BRIDGE SEGMENT Russian patent published in 2012 - IPC B63B35/36 E01D15/14 

FIELD: transport.

SUBSTANCE: invention relates to stream-crossing expedients. Proposed segment comprises articulated medium and extreme pontoons with roadway built in deck. Medium pontoons transoms accommodate segment joint assemblies while extreme pontoon transoms support eye bolts and bypass units. Outer board of one of extreme pontoons is furnished with extending flexible folding sector-like floater consisting of inflatable wedge-like vessels arranged between frames. Said frames are fixed in recesses to turn about vertical axles mounted at the center of recess adjoining the roadway. Another extreme pontoon is equipped with rigid pod with length equal to that of pontoon pivoted to the latter to turn about axis parallel with segment lengthwise axis. Said pod features triangular prism shape. With pod in top position, one face of said prism continues segment bottom outlines and, with pod in position, another face does it. Third face is provided with joint device made up of, for example, ear and yoke with moving pin for jointing segments together in pontoon bridges and ferries.

EFFECT: expanded applications.

9 dwg