Patent ID: 7779882

Claim:
An apparatus for manufacturing a cord-reinforced rubber sheet which is comprised of a rubber coated cord group including a plurality of cords configured in a form of a ribbon, the apparatus comprising: a first cylinder having a first cylinder diameter collectively defined by a plurality of generally parallel peripherally arranged rollers configured for receiving the ribbon, in wrapped engagement about the first cylinder diameter, by rotation of the first cylinder about a centrally disposed cylinder axis; a second cylinder which is coaxial with said first cylinder, said second cylinder having a second cylinder diameter that is smaller than the first cylinder diameter of the first cylinder, said second cylinder being arranged in parallel with said first cylinder in a direction of said cylinder axis, said second cylinder comprising a conveyer including cycling belts which are movable in a direction of the cylinder axis for moving a cylinder surface to a cylinder axis direction, the ribbon being wrapped around a surface of the conveyer by rotation of the first cylinder while a first edge portion of the ribbon wrapped about the first cylinder is joined to a surface of the conveyer, a spiral cycling belt being carried in said first cylinder which cycles spirally about the first diameter defined by said rollers and which is operable to transfer the ribbon wound on the first cylinder to a surface of the second cylinder via said spiral cycling belt so as to form a cylindrical rubber sheet continuously wound spirally in which portions of the ribbon are contacted with each other by moving the surface of the conveyer in the cylinder axis direction; and a cord supply guide connected to a moving device configured to be operable for moving axially in the direction of cylinder axis of the first cylinder and the second cylinder, and for supplying the ribbon to the first cylinder and the second cylinder.