Supporting device for heavy lorry, has piston rod with two ends, where one of ends supports piston plate that divides pneumatic cylinder of pressure piston into two partial chambers, and fluid medium supplied to partial chambers

摘要

The device (1) has a box-type housing (2) and a pneumatic cylinder (5), that adjusts a supporting plate (9) of the device. The pneumatic cylinder includes a cylinder housing (4), that is telescope-type adjustably arranged in the housing of the device. A free end (6a) of a piston rod (6) of the pneumatic cylinder engages with the box-type housing, and another end (6b) supports a piston plate (7), that divides the pneumatic cylinder of a pressure piston (3) into two partial chambers, where fluid medium is supplied to the partial chambers.