公开(公告)号：US20240100884A1

公开(公告)日：2024-03-28

申请号：US18266969

申请日：2021-12-09

Applicant: COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELIN

Inventor： François BARBARIN ,  Jean-Luc GUERBERT-JUBERT ,  Philippe MANSUY ,  Olivier REIX ,  Sébastien NOEL ,  Lucas LAUBY

IPC: B60C9/20

CPC classification number: B60C9/20 ,  B60C2009/2016 ,  B60C2009/2019 ,  B60C2009/209 ,  B60C2009/2093 ,  B60C2200/065

Abstract: A radial tire (1) for a heavy-duty vehicle, in which the reinforcing elements of each hooping layer (331, 332, 333), forming an angle at most equal to 5° with the circumferential direction, and the reinforcing elements of the transverse reinforcer layers (321, 322, 323), forming an angle of between 10° and 45° with the circumferential direction, are extensible and therefore such that, in their rubberized state extracted from a polymer matrix, their structural elongation As is at least equal to 0.5%, their total elongation at break At is at least equal to 3% and their tensile Young's modulus E is at most equal to 150 GPa.

公开(公告)号：US20240100885A1

公开(公告)日：2024-03-28

申请号：US18266928

申请日：2021-12-09

Applicant: COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELIN

Inventor： Jean-Luc GUERBERT-JUBERT ,  François BARBARIN ,  Olivier REIX ,  Philippe MANSUY ,  Lucas LAUBY ,  Sébastien NOEL

IPC: B60C9/20 ,  B60C9/00

CPC classification number: B60C9/2006 ,  B60C9/0007 ,  B60C2009/0078 ,  B60C2009/2016 ,  B60C2009/2019

Abstract: A radial tire (1) for a heavy-duty vehicle, with at least two working layers (321, 322, 323, 324) in which the reinforcing elements form an angle at least equal to 10° and at most equal to 45° with the circumferential direction. The metal reinforcers of all of the crown layers of the crown reinforcement are extensible and therefore have, in their rubberized state extracted from a polymer matrix, a structural elongation As at least equal to 0.5%, a total elongation at break At at least equal to 3% and a tensile Young's modulus E at most equal to 150 GPa. The narrower of the two working layers has an axial width at least equal to 60% of the width of the tread and the wider of the two working layers has an axial width at least equal to 70% of the width of the tread.

公开(公告)号：US20220134805A1

公开(公告)日：2022-05-05

申请号：US17416047

申请日：2019-12-11

Applicant: COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELIN

Inventor： Frederic PERRIN ,  Florian LACHAL ,  Gaël PATAUT ,  Richard CORNILLE ,  Olivier REIX

IPC: B60C9/20 ,  B60C9/00

Abstract: A tire (1) for an agricultural vehicle, having a crown reinforcement (3), with at least two crown layers (31, 32), each having metal reinforcers which are coated in an elastomer material. Any metal reinforcer of a crown layer (31, 32) has a law, known as a bi-modulus law, governing its elastic behaviour under tension, comprising a first portion having a first extension modulus MG1 at most equal to 30 GPa, and a second portion having a second extension modulus MG2 at least equal to 2 times the first extension modulus MG1, and any metal reinforcer of a crown layer (31, 32) has a law governing its behaviour under compression that is characterized by a critical buckling strain EU at least equal to 3%.