RAMP-LADDER Russian patent published in 2005 - IPC

FIELD: manufacture of ramps-ladders.

SUBSTANCE: proposed ramp-ladder ramp with includes strings and detachable rails articulated to ship's hull and ladder articulated to ramp; it is also provided with ramp raising-lower drive and ladder folding and unfolding drive with hydraulic cylinders and lever mechanisms. Lever mechanisms are located on both side of ramp; each lever mechanism has two parallel axles located at ends of ramp string; one axle is used for turning the ladder and other axle is used as axle of swivel lever which is articulated with cylinder rod; provision is also made for rod articulated cylinder rod and engageable with axle at end face of ladder.

EFFECT: improved compactness.

4 dwg