DOUBLE-HINGED PLATE CHAIN Russian patent published in 1994 - IPC

FIELD: mechanical engineering. SUBSTANCE: chain has links in the form of plates interconnected by a spider. A pair of bearing and a pair of guide rollers are mounted on the spider axles located in two mutually perpendicular planes. The axle of the guide rollers is made with a slot in its middle part through which they mate each other. The roller axles are made with a circular cross section. The slot is made annular with a spherical profile and the radius of curvature equal to the radius of the bearing roller axle. The axles are fixed to each other by a connecting device. The connecting device may be made in the form of a shackle from a band material with a C-shaped cross section to form a cavity for positioning the bearing roller axle inside. EFFECT: improved structure. 2 cl, 3 dwg