BR112021023453A2 - Pneumático que tem paredes laterais otimizadas e reforço de coroa constituído de duas camadas de coroa funcionais e uma camada de elementos de reforço circunferenciais - Google Patents

Pneumático que tem paredes laterais otimizadas e reforço de coroa constituído de duas camadas de coroa funcionais e uma camada de elementos de reforço circunferenciais

Info

Publication number
BR112021023453A2
BR112021023453A2 BR112021023453A BR112021023453A BR112021023453A2 BR 112021023453 A2 BR112021023453 A2 BR 112021023453A2 BR 112021023453 A BR112021023453 A BR 112021023453A BR 112021023453 A BR112021023453 A BR 112021023453A BR 112021023453 A2 BR112021023453 A2 BR 112021023453A2
Authority
BR
Brazil
Prior art keywords
reinforcement
crown
layer
sidewalls
layers
Prior art date
Application number
BR112021023453A
Other languages
English (en)
Inventor
Hichem Rehab
Maxime Rolland
Patrick Dayet
Sébastien Noel
Original Assignee
Michelin & Cie
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Michelin & Cie filed Critical Michelin & Cie
Publication of BR112021023453A2 publication Critical patent/BR112021023453A2/pt

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
    • B60C15/00—Tyre beads, e.g. ply turn-up or overlap
    • B60C15/06—Flipper strips, fillers, or chafing strips and reinforcing layers for the construction of the bead
    • B60C15/0628—Flipper strips, fillers, or chafing strips and reinforcing layers for the construction of the bead comprising a bead reinforcing layer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
    • B60C15/00—Tyre beads, e.g. ply turn-up or overlap
    • B60C15/02—Seating or securing beads on rims
    • B60C15/024—Bead contour, e.g. lips, grooves, or ribs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
    • B60C9/00—Reinforcements or ply arrangement of pneumatic tyres
    • B60C9/0007—Reinforcements made of metallic elements, e.g. cords, yarns, filaments or fibres made from metal
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
    • B60C9/00—Reinforcements or ply arrangement of pneumatic tyres
    • B60C9/02—Carcasses
    • B60C9/04—Carcasses the reinforcing cords of each carcass ply arranged in a substantially parallel relationship
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
    • B60C9/00—Reinforcements or ply arrangement of pneumatic tyres
    • B60C9/18—Structure or arrangement of belts or breakers, crown-reinforcing or cushioning layers
    • B60C9/20—Structure or arrangement of belts or breakers, crown-reinforcing or cushioning layers built-up from rubberised plies each having all cords arranged substantially parallel
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
    • B60C15/00—Tyre beads, e.g. ply turn-up or overlap
    • B60C15/0009—Tyre beads, e.g. ply turn-up or overlap features of the carcass terminal portion
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
    • B60C15/00—Tyre beads, e.g. ply turn-up or overlap
    • B60C15/06—Flipper strips, fillers, or chafing strips and reinforcing layers for the construction of the bead
    • B60C15/0628—Flipper strips, fillers, or chafing strips and reinforcing layers for the construction of the bead comprising a bead reinforcing layer
    • B60C15/0632—Flipper strips, fillers, or chafing strips and reinforcing layers for the construction of the bead comprising a bead reinforcing layer using flippers in contact with and wrapped around the bead core and, at least partially, in contact with the bead filler
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
    • B60C9/00—Reinforcements or ply arrangement of pneumatic tyres
    • B60C9/02—Carcasses
    • B60C2009/0269—Physical properties or dimensions of the carcass coating rubber
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
    • B60C9/00—Reinforcements or ply arrangement of pneumatic tyres
    • B60C9/18—Structure or arrangement of belts or breakers, crown-reinforcing or cushioning layers
    • B60C9/20—Structure or arrangement of belts or breakers, crown-reinforcing or cushioning layers built-up from rubberised plies each having all cords arranged substantially parallel
    • B60C2009/2012—Structure or arrangement of belts or breakers, crown-reinforcing or cushioning layers built-up from rubberised plies each having all cords arranged substantially parallel with particular configuration of the belt cords in the respective belt layers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
    • B60C15/00—Tyre beads, e.g. ply turn-up or overlap
    • B60C15/06—Flipper strips, fillers, or chafing strips and reinforcing layers for the construction of the bead
    • B60C15/0628—Flipper strips, fillers, or chafing strips and reinforcing layers for the construction of the bead comprising a bead reinforcing layer
    • B60C2015/065—Flipper strips, fillers, or chafing strips and reinforcing layers for the construction of the bead comprising a bead reinforcing layer at the axially outer side of the carcass turn-up portion not wrapped around the bead core
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
    • B60C2200/00—Tyres specially adapted for particular applications
    • B60C2200/06—Tyres specially adapted for particular applications for heavy duty vehicles

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Tires In General (AREA)

Abstract

pneumático que tem paredes laterais otimizadas e reforço de coroa constituído de duas camadas de coroa funcionais e uma camada de elementos de reforço circunferenciais. a presente invenção refere-se a um pneumático que tem um reforço de carcaça radial, constituído de uma camada única de elementos de reforço ancorados em cada um dos talões sendo redobra ao redor de um fio de talão, reforçado por um reforçador. de acordo com a invenção, as duas camadas de coroa funcionais são as únicas presentes para formar o reforço de coroa em pelo menos 75 % da largura da banda de rodagem, em que o valor absoluto da diferença entre os valores absolutos dos ângulos a2 e a1 é maior que 7°, em que a2 é maior que a1 em termos de valor absoluto, o ângulo médio a satisfaz a relação 13+131*exp(-l/100) < a < 28+110*exp(-l/100), os elementos de reforço do reforço de carcaça são cabos que, no teste denominado teste de permeabilidade, geram uma taxa de fluxo inferior a 20 cm3/min, em que um composto de borracha está presente dentro dos cabos, e, na parede lateral do pneumático, o perfil da superfície externa do pneumático está a uma distância constante da camada de reforço de carcaça entre os pontos f e a e encontra a superfície externa do talão no ponto c, formando dois arcos circulares sucessivos.
BR112021023453A 2019-06-06 2020-06-04 Pneumático que tem paredes laterais otimizadas e reforço de coroa constituído de duas camadas de coroa funcionais e uma camada de elementos de reforço circunferenciais BR112021023453A2 (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1906038A FR3096933B1 (fr) 2019-06-06 2019-06-06 Pneumatique comportant des flancs optimises et une armature de sommet constituee de deux couches de sommet de travail et d’une couche d’elements de renforcement circonferentiels
PCT/EP2020/065416 WO2020245240A1 (fr) 2019-06-06 2020-06-04 Pneumatique comportant des flancs optimises et une armature de sommet constituee de deux couches de sommet de travail et d'une couche d'elements de renforcement circonferentiels

Publications (1)

Publication Number Publication Date
BR112021023453A2 true BR112021023453A2 (pt) 2022-01-18

Family

ID=68733134

Family Applications (1)

Application Number Title Priority Date Filing Date
BR112021023453A BR112021023453A2 (pt) 2019-06-06 2020-06-04 Pneumático que tem paredes laterais otimizadas e reforço de coroa constituído de duas camadas de coroa funcionais e uma camada de elementos de reforço circunferenciais

Country Status (7)

Country Link
US (1) US11850893B2 (pt)
EP (1) EP3980282B1 (pt)
CN (1) CN113905911A (pt)
BR (1) BR112021023453A2 (pt)
CA (1) CA3136095A1 (pt)
FR (1) FR3096933B1 (pt)
WO (1) WO2020245240A1 (pt)

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57191104A (en) * 1981-05-17 1982-11-24 Toyo Tire & Rubber Co Ltd Radial tire for truck and bus
JPH03213409A (ja) * 1990-01-16 1991-09-18 Yokohama Rubber Co Ltd:The 重荷重用空気入りラジアルタイヤ
FR2728510A1 (fr) 1994-12-23 1996-06-28 Michelin & Cie Pneumatique de rapport de forme h/s inferieur ou egal a 0,6
FR2770458B1 (fr) 1997-11-05 1999-12-03 Michelin & Cie Armature de sommet pour pneumatique "poids-lours"
FR2779387B1 (fr) 1998-06-05 2000-08-11 Michelin & Cie Bourrelet renforce de pneumatique radial
JP4543145B2 (ja) 2002-10-11 2010-09-15 ソシエテ ド テクノロジー ミシュラン 重車両用タイヤの補強に用いるケーブル
FR2938467B1 (fr) * 2008-11-17 2010-11-12 Michelin Soc Tech Pneumatique comportant des cables d'armatures de carcasse presentant une faible permeabilite, et des epaisseurs de melanges caoutchouteux reduites
FR2969035B1 (fr) * 2010-12-21 2014-08-29 Michelin Soc Tech Pneumatique dont l'armature de carcasse est renforcee par une couche d'elements de renforcement dans la zone du bourrelet
FR2984221B1 (fr) 2011-12-19 2014-05-16 Michelin Soc Tech Pneumatique comportant des cables d'armature de carcasse presentant une faible permeabilite, et des fils textiles associes a l'armature de carcasse
JP5438088B2 (ja) * 2011-12-20 2014-03-12 住友ゴム工業株式会社 重荷重用空気入りタイヤ
JP6197786B2 (ja) * 2012-02-21 2017-09-20 横浜ゴム株式会社 空気入りタイヤおよび空気入りタイヤの製造方法
FR2989029B1 (fr) * 2012-04-06 2014-04-18 Michelin & Cie Pneumatique comportant une bande de roulement elargie
FR3022802B1 (fr) * 2014-06-27 2019-10-04 IFP Energies Nouvelles Catalyseur oxyde de fer sur support alumine alpha et sa mise en œuvre dans un procede de deshydrogenation d'hydrocarbures monoinsatures comprenant de 4 a 5 atomes de carbone
FR3029840B1 (fr) * 2014-12-16 2018-04-20 Compagnie Generale Des Etablissements Michelin Pneumatique comportant une armature de carcasse formee de deux couches
FR3048383B1 (fr) * 2016-03-02 2018-03-09 Compagnie Generale Des Etablissements Michelin Armature de sommet de pneumatique constituee de deux couches de sommet de travail et d'une couche d'elements de renforcement circonferentiels
FR3048382B1 (fr) 2016-03-02 2018-03-09 Compagnie Generale Des Etablissements Michelin Armature de sommet de pneumatique constituee de deux couches de sommet de travail

Also Published As

Publication number Publication date
EP3980282A1 (fr) 2022-04-13
US20220314710A1 (en) 2022-10-06
EP3980282B1 (fr) 2023-11-22
US11850893B2 (en) 2023-12-26
CN113905911A (zh) 2022-01-07
WO2020245240A1 (fr) 2020-12-10
FR3096933B1 (fr) 2021-05-14
CA3136095A1 (fr) 2020-12-10
FR3096933A1 (fr) 2020-12-11

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