LOADER Russian patent published in 1999 - IPC

FIELD: construction industry. SUBSTANCE: loader has base chassis, boom pivotally attached to chassis, and manipulator raising-lowering hydraulic cylinders, bucket connected to manipulator and provided with blade, and bucket rotating hydraulic cylinder connected with its one end to chassis. Other end of this hydraulic cylinder is pivotally joined to first arm of double-armed lever, whose second end is coupled through pivotal tie-rod to bucket. Manipulator raising-lowering cylinders are secured with their ends to base chassis and to manipulator, with their pivot joints being positioned in plane extending through bucket blade and coinciding with longitudinal axes of manipulator raising-lowering cylinders, when bucket blade comes into contact with material to be worked. EFFECT: increased efficiency by reduced loading of bucket and members for hanging bucket to loader. 1 dwg