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1. (WO2018044292) HEAVY TRUCK TIRE TREAD AND HEAVY TRUCK TIRE

Pub. No.:    WO/2018/044292    International Application No.:    PCT/US2016/049657
Publication Date: Fri Mar 09 00:59:59 CET 2018 International Filing Date: Thu Sep 01 01:59:59 CEST 2016
IPC: B60C 11/03
B60C 11/12
Applicants: COMPAGNIE GENERALE DES ESTABLISSEMENTS MICHELIN
VOSS, Stefan
Inventors: VOSS, Stefan
Title: HEAVY TRUCK TIRE TREAD AND HEAVY TRUCK TIRE
Abstract:
The invention provides for a heavy truck tire tread (2) having a longitudinal direction (LgD), a lateral direction (LtD), a tread depth direction (TdD), a ground contact surface (CS) and a pair of opposing tread shoulders (3, 4) spaced apart along the lateral direction, said tread consisting in : - a shoulder zone (SZ, SZ') adjacent each tread shoulder of said pair of opposing tread shoulders, said shoulder zones consisting of blocks (5, 6), said blocks being adjacent to each other along the longitudinal direction and separated by lateral grooves (7, 8); and - a center zone (CZ) defined between said shoulder zones, said center zone consisting in a longitudinal center rib (9); wherein the center zone is decoupled from both shoulder zones by at least one longitudinal sipe (11) or groove and wherein each lateral groove (7) in a shoulder zone (SZ) is directly connected to an opposite lateral groove (8) in the opposite shoulder zone (SZ') by a lateral sipe (10) of the center rib.