DRUM FOR ASSEMBLY OF TYRES WITH DEVICES FOR TURN-UP OF TYRE BAND EDGES Russian patent published in 2002 - IPC

FIELD: tyre industry, applicable for assembly of a non-vulcanized tyre, having two bead cores with a high filling cord. SUBSTANCE: drum for assembly of tyres with a device for turn-up of the tyre band edges for assembly of a non-vulcanized tyre with components of rubber or having reinforcing cords and two bead cores with a high filling cord has two sets of axially projecting hinge levers. A roller is located on the ends of the levers directed to the segment. The roller of the second set is positioned between the adjacent similar rollers of the first set of levers. The device has means for axial and radial movement of the levers from the position, in which the levers form a closed ring, to the position, in which the levers press the expanded part of the tyre components to the bead cores. EFFECT: enhanced quality of the assembled tyre due to reliable attachment of the tyre component at a turn-up of the tyre band edges. 4 cl, 5 dwg