ARM OF LOAD-HOISTING MACHINE Russian patent published in 1997 - IPC

FIELD: load-handling facilities. SUBSTANCE: machine is intended for load-handling, earth-moving and other operations related to hoisting of loads, excavation and carrying of earth. Arm of this load-hoisting machine is made up of two side members fastened together by their edges which are bent towards each other. Side members have mounting holes in their opposite ends for connecting to boom and working member. End of arm side members intended for connection to boom has in its lower section a continuous cutout in part of side members and is provided with eye lugs secured on side members at this point. Eye lugs have holes for fastening of hydraulic cylinder for operation of working member, arm operation hydraulic cylinder, and for fastening of boom. At place of cutout in side members and up to end of arm, lower parts of side members are interconnected by curved and straight metal plates. Eye lugs can be covered atop with metal strip. EFFECT: high efficiency. 1 cl, 4 dwg