WORKING MEMBER OF MOTOR GRADER Russian patent published in 2002 - IPC

FIELD: earth-moving machinery. SUBSTANCE: working member of motor grader has central, two side sections and hydraulic cylinders extending the sections. Each hydraulic cylinder is coupled with corresponding side section by mass of joint being essentially a housing formed by cup and bushing, with cup secured on end of hydraulic cylinder rod and bushing enclosing upper end of pin. Lower end of pin is hinge-connected with upper part of outer end of corresponding side section. Central section has herringbone screw guides from rear side with rise in direction from end faces to middle of central section in which side sections are installed on sliders. Length of each side section is 1=(L/2)-0.25 m where L is length of central section. EFFECT: increased capacity when carrying out grading of earth, simplified design of working member. 3 dwg