SELF-PROPELLED LOADER Russian patent published in 1997 - IPC

FIELD: mechanical engineering; construction machinery; loaders with telescopic equipment. SUBSTANCE: self-propelled loader has three- section telescopic boom, rigid pipelines installed inside first fixed and third movable sections and interconnected by flexible pipelines wrapped around drum secured on rear portion of middle movable section, and also hydraulic drive. Loader has frame on which above-indicated rigid pipelines of first fixed section are mounted. One end of frame is hinge-connected in tail portion of first fixed section. Roller support is mounted on other end of frame for engagement with second and third movable sections, and wire rope is fastened. Wire rope is laid on return drum near flexible pipelines and is connected with third movable section. Length of wire rope is smaller than length of flexible pipelines. EFFECT: enlarged operating capabilities. 8 dwg