LIFTING TABLE Russian patent published in 2008 - IPC B66F7/06 B66F3/22 

FIELD: construction; handling equipment.

SUBSTANCE: table consists of a base and a movable platform. The base and platform are interconnected with the help of two pairs of crossing levers of the "Nuremberg scissors" type: the master one and the secondary one. The lift drive consists of drive screws (the master one and the secondary one), a gear unit, an electric motor. The secondary and the master drive screws are mounted opposite each other and uniaxially. The axes of symmetry of the master and the secondary drive screws are mated with those of the lower registered ends of the swivel joints of the master and the secondary crossing lever pairs. The screw ends are connected to the base via bearing assemblies. Onto the master and the secondary drive screws there are nuts screwed on with a left-hand and a right-hand thread accordingly. Each of the nuts has uniaxially installed and diversely oriented studs. The nut studs are connected to the boxes via the pairs of pull rods positioned on either side of the diamond. Each of the boxes is equipped with diversely oriented studs and fastened onto the common spindle of the movable bearings of the lower ends of the crossing levers (of both the master and secondary pairs) with the help of a pin. The movable bearings with the common spindle are installed in the base guides.

EFFECT: regular and uniform lift of the movable platform above the base combined with operational safety enhancement.

2 cl, 4 dwg