LIFTING DEVICE Russian patent published in 1997 - IPC

FIELD: materials handling; wheeled lifting device. SUBSTANCE: lifting device designed mainly for transportation of load along one plane of platform body, lifting the load to other plane and transportation along this plane has housing on which load-bearing members are mounted for movement in vertical plane by means of lifting mechanism. Movement mechanism mounted on lower portion of housing has wheels installed on at least three axles. One of axles with first wheels is stationary mounted on housing at side opposite to load bearing members. Other axles with wheels are secured on support levers located lower than load. Support levers are installed for movement in plane perpendicular to housing plane. One of two axles with wheels is secured on extreme ends of levers, and the other is stationary secured on lever between above- indicated axle of first wheels and axle secured on extreme ends of levers. Wheels mounted on stationary secured axle are arranged higher than plane defined by lower surfaces of first wheels and wheels secured on extreme ends of levers. EFFECT: enlarged operating capabilities; possibility of moving the device up and the stairs with load. 3 cl, 8 dwg