US 11,999,121 B2
Method for manufacturing a tire with reinforced tread blocks
Mickael Rouby, Clermont-Ferrand (FR); Patrice Monnereau, Clermont-Ferrand (FR); and Christophe Bessac, Clermont-Ferrand (FR)
Assigned to COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELIN, Clermont-Ferrand (FR)
Appl. No. 17/058,904
Filed by COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELIN, Clermont-Ferrand (FR)
PCT Filed May 20, 2019, PCT No. PCT/EP2019/062961
§ 371(c)(1), (2) Date Nov. 25, 2020,
PCT Pub. No. WO2019/228840, PCT Pub. Date Dec. 5, 2019.
Claims priority of application No. 1854594 (FR), filed on May 29, 2018.
Prior Publication US 2021/0197511 A1, Jul. 1, 2021
Int. Cl. B29D 30/60 (2006.01); B29D 30/14 (2006.01); B29D 30/66 (2006.01); B60C 11/00 (2006.01)
CPC B29D 30/60 (2013.01) [B29D 30/14 (2013.01); B29D 30/66 (2013.01); B60C 11/005 (2013.01); B29D 2030/665 (2013.01)] 7 Claims
OG exemplary drawing
 
1. A method for manufacturing a tire comprising:
positioning a reinforcing ply in a rubber material having grooves such that the reinforcing ply extends through the grooves;
crosslinking the tire based on uncured rubber material by hot molding the uncured rubber material, with the reinforcing ply being pushed against the bottom of the grooves;
manufacturing a carcass based on uncured rubber material;
mounting on the carcass a green form of tread based on uncured rubber material comprising the rubber material having the grooves; and
mounting on the green form of tread a stiffening layer having uncured rubber material and the reinforcing ply, the reinforcing ply being interposed between the rubber material of the green form of tread and the rubber material of the stiffening layer,
wherein the stiffening layer is mounted such that it does not have uncured rubber material vertically in line with the grooves.