LOADER Russian patent published in 1999 - IPC

FIELD: construction industry. SUBSTANCE: loader has base chassis, manipulator pivotally connected to chassis and manipulator raising-lowering hydraulic cylinders. Rear jaw is attached to manipulator and front jaw is pivotally attached to rear jaw. Balancing mechanism has hydraulic cylinder pivotally attached to chassis and adapted for rotation of rear jaw in vertical longitudinal plane, double-armed lever pivotally secured to manipulator, hydraulic cylinder for rotating rear jaw, and pivotal tie-rod attached to bucket. Auxiliary tie-rod is pivotally connected with its one end to front jaw and with its other end to pivot joint for connecting double-armed lever to rear jaw rotating hydraulic cylinder. Auxiliary tie-rod longitudinal axis is extending above front and rear jaws pivot joint. EFFECT: increased efficiency by providing increased force acting upon jaws for connecting or bringing them apart. 2 dwg