COLLAPSIBLE UNIT Russian patent published in 2007 - IPC B63B35/36 B63B35/34 B63B35/54 

FIELD: crossing bridge means; collapsible pontoons and ferries.

SUBSTANCE: proposed collapsible unit includes two end articulated and two middle pontoons, ramp and collapsible streamlined shields located on one of transoms of collapsible unit. Each ramp is provided with longitudinal guides on lower plane and each collapsible streamlined shield is made from middle section and two end articulated sections locked with braces relative to middle section. Middle section is provided with stop and is movably connected with longitudinal guides of ramp by means of rollers located on upper edge of shield and is rotatably connected by means of connecting rods articulated at one end to lugs on rear plane of middle section; at other end provided with tubular head it is articulated to axles found on side walls of ramp.

EFFECT: facilitated action of crew in handling the collapsible shields during ferry crossing; reduction of time required for loading the equipment on and unloading the equipment from ferry.

7 dwg