Process for the manufacture of a tire including applying individual cord lengths and apparatus for carrying out the process
AssigneeSedepro
InventorClaude Debroche
Life of this patent
Estimating the term…
Abstract
The tire reinforcements are made from a single cord, a section (40) of which is advanced over a rigid core (2) until at least its central portion is opposite its final position on the support, whereupon folders (5) apply the section (40) radially against the core (2) by means of tappets (50) which act on the length (40) in the manner of a finger. The repetition of the same cycle as many times as there are lengths of cord in the reinforcement makes it possible to produce the complete reinforcement.
Claims20
A method of making a tire on a displaceable annular core having an outer surface which defines the shape of the inner surface of the tire, the tire being progressively built on the outer surface of the core, comprising feeding a length of an individual cord and presenting the individual cord across the outer surface of the core with an intermediate portion of the cord at the desired angular orientation with respect to the outer surface of the core, imparting a cyclic movement to a pair of folders, one on each side of the core, to move them into engagement with the ends of the cord and displace the ends toward the outer surface of the core to apply the individual length of cord at the desired place on the outer surface of the core and then repeat the cycle with another cord.
An apparatus for the manufacture of a tire on a displaceable annular core having an outer surface which is the shape of the inner surface of the tire, the tire being progressively built on the outer surface of the core, comprising means for feeding a length of an individual cord and presenting the individual cord across the outer surface of the core with an intermediate portion of the cord at the desired angular orientation with respect to the outer surface of the core, a pair of folders, one on each side of the core, means imparting a cyclic movement to each folder so as to move the folders into engagement with the ends of the cord and displace the ends toward the outer surface of the core to apply the length of the cord at the desired place on the outer surface of the core and then repeat the cycle with another cord.
A method of making a tire on an annular core having an outer surface which corresponds to the inner surface of the tire to be made, the outer surface of the core having a circumferential portion and a pair of side portions, comprising cutting a cord to a predetermined length to be applied to the outer surface of the core, feeding the cut length of cord and presenting it across the outer surface of the core with an intermediate portion of the cord oriented at the desired angle with respect to the circumferential portion of the outer surface of the core and the ends of the cord extending beyond the sides of the core, and imparting movement in a plane intersecting the core to a pair of folders, one on each side of the core, to move the folders into engagement with the ends of the cord and displace the ends along opposite side portions of the outer surface of the core to apply the length of the cord at the desired place on the outer surface of the core.
An apparatus for making a tire on an annular core having an outer surface which corresponds to the inner surface of the tire to be made, the outer surface of the core having a circumferential portion and a pair of side portions, comprising means for cutting a predetermined length of a cord to be applied on the outer surface of the core, means for feeding the cut cord and presenting it across the outer surface of the circumferential portion of the core with an intermediate portion of the cord oriented at the desired angle with respect to the circumferential portion of the outer surface of the core and the ends of the cord extending beyond the sides of the core, a pair of folders, one on each side of the core, and folder carriers for carrying each of the folders in a plane intersecting the core so as to move the folders into engagement with the ends of the cord and displace the ends against the side portions of the outer surface of the core to apply the cord at the desired place on the outer surface of the core.
Dependencies are inferred from the claim text.