Process for producing tyre casing and apparatus for making the same

摘要

The reinforcement of a tyre carcass is made from a single wire (4) from which sections (40) are successively laid onto a rigid support core (2), defining the internal tyre shape, by a laying head (3A) describing an orbital path around the support the development of which forms a plane that cuts the axis of rotation of the support at an adjustable angle. The support is rotated at arc angular speed dependent on the angular speed of the laying head and the desired pitch of the laid wires. The wire necessary for a section (40) is taken by a means able to call off the required length.