Patent classifications
B29D2030/1678
STRIP RUBBER ADHERING APPARATUS
A strip rubber adhering apparatus includes a rotating drum; an extruder configured to extrude strip rubber of a shape having an apex portion in cross section toward the drum; a pressure bonding roller configured to press a surface of the strip rubber on the apex portion side in the direction of the drum, and adhere the surface of the strip rubber on a side opposite to the apex portion side to the drum; and a blowing apparatus configured to supply wind toward the surface of the strip rubber on the apex portion side in the vicinity of a position of adhesion of the strip rubber with respect to the drum, wherein the drum and the extruder are relatively movable in the direction of axis of the drum with respect to each other.
METHOD FOR MANUFACTURING, ON A CORE, A PNEUMATIC TIRE WITH A CARCASS COMPRISING REINFORCEMENTS WHICH ARE INCLINED IN THE SIDEWALLS AND ARE RADIAL UNDER THE CROWN
The method includes laying a set of carcass reinforcers on a core. The carcass reinforcers each follow a laying trajectory which is contained in a laying plane that is parallel to the central axis of the core and at a distance from the central core. As such, each carcass reinforcer follows, in the crown zone of the core, a radial plane containing the central axis. The carcass reinforcers therefore extend parallel to the central axis in the crown of the tire, while, in orthogonal projection in a reference plane normal to the central axis, this same carcass reinforcer forms, in the lateral zones of the core and therefore in the sidewalls of the tire, a non-zero inclination angle with respect to the radial plane containing the central axis.