Telescopic forklift cylinder assembly - has three tubes with communicating chambers to achieve simultaneous extension of tubes in vertical series

摘要

The hydraulic lifting assembly for use on forklifts has a three-part telescopic gear with hydraulic fluid chambers communicating so that all the telescopic parts move at the same time when hydraulic pressure is applied. A set of rollers (44) connected by a lateral member (45) fitted at the top of the upper piston (30). The chains (46) running on the rollers (45) are fixed at one end to the shell of an intermediate cylinder (28) and at the other end to a slide (24). During operation, hydraulic fluid flows from a chamber between the top units and hydraulic fluid flows into a chamber arranged between the bottom units. These chambes are line which results in simultaneous extension.