Tire molding device
AssigneeBridgestone Corporation
InventorYutaka Koyama
Life of this patent
Estimating the term…
Abstract
Air intrusion at molding of a ribbon laminated tire is prevented. When a ribbon (S) is wound on a molding drum (1) in the helical state so as to form a ribbon laminated tire, a pressing roll is made movable in the axial direction of the molding drum (1) in synchronization with an affixing roll (2) of a ribbon extruder (3), and driving control is carried out for revolution around a Z-axis and moreover around a Y-axis in addition to movement in the X-axis and Y-axis directions so that the pressing roll can be pressed in contact perpendicularly to the ribbon surface wound in the helical state over the molding drum (1).
Claims8
A tire molding device provided with a pressing means for pressing/bonding a ribbon pushed out of a ribbon extruder and wound around a molding drum in helical state, the pressing means being provided separately from the ribbon extruder, the device comprising means for controlling drive of the pressing means along a Y-axis and an X-axis crossing each other and means for controlling revolution of the pressing means around a Z-axis at a right angle to the Y-axis and the X-axis, respectively.
Dependencies are inferred from the claim text.