Patent RU 174726. A hinge of device for connecting links of the crane-manipulator

The patent relates to the field of lifting and transport engineering, namely, to devices for detachable joints of elements of metal structures of hoisting machines, in particular, to devices for detachable connections of adjacent links of articulated hoisting boom crane and manipulator units. The joint of the device for connecting the links of the crane-manipulator installation, formed by two pairs of eyelets, each of which is fixed to the end of the metal structure of one of the connecting adjacent links, is made of thick-walled sheet metal and has coaxial holes for installing intermediate sleeves with Central holes for placing a hinge pin in them. It differs in that the intermediate sleeves are made collapsible in the circumferential direction and consisting of at least four tightly contacting V-shaped segments