FR3112717B1 - optimized earthmover tire architecture - Google Patents

optimized earthmover tire architecture Download PDF

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Publication number
FR3112717B1
FR3112717B1 FR2007695A FR2007695A FR3112717B1 FR 3112717 B1 FR3112717 B1 FR 3112717B1 FR 2007695 A FR2007695 A FR 2007695A FR 2007695 A FR2007695 A FR 2007695A FR 3112717 B1 FR3112717 B1 FR 3112717B1
Authority
FR
France
Prior art keywords
layer
metal reinforcements
equal
ltn
axial width
Prior art date
Legal status (The legal status 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 status listed.)
Active
Application number
FR2007695A
Other languages
French (fr)
Other versions
FR3112717A1 (en
Inventor
Emmanuel Clement
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Compagnie Generale des Etablissements Michelin SCA
Original Assignee
Compagnie Generale des Etablissements Michelin SCA
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 Compagnie Generale des Etablissements Michelin SCA filed Critical Compagnie Generale des Etablissements Michelin SCA
Priority to FR2007695A priority Critical patent/FR3112717B1/en
Priority to PCT/FR2021/051289 priority patent/WO2022018350A1/en
Publication of FR3112717A1 publication Critical patent/FR3112717A1/en
Application granted granted Critical
Publication of FR3112717B1 publication Critical patent/FR3112717B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • 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
    • B60C9/2003—Structure or arrangement of belts or breakers, crown-reinforcing or cushioning layers built-up from rubberised plies each having all cords arranged substantially parallel characterised by the materials of the belt cords
    • B60C9/2006—Structure or arrangement of belts or breakers, crown-reinforcing or cushioning layers built-up from rubberised plies each having all cords arranged substantially parallel characterised by the materials of the belt cords consisting of steel cord plies only
    • 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
    • B60C9/1835—Rubber strips or cushions at the belt edges
    • B60C9/185—Rubber strips or cushions at the belt edges between adjacent or radially below the belt plies
    • 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
    • B60C9/28—Structure or arrangement of belts or breakers, crown-reinforcing or cushioning layers characterised by the belt or breaker dimensions or curvature relative to carcass
    • 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
    • B60C2009/2019—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 comprising cords at an angle of 30 to 60 degrees to the circumferential direction
    • 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
    • B60C2009/2022—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 comprising cords at an angle of 60 to 90 degrees to the circumferential direction
    • 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
    • B60C2200/065—Tyres specially adapted for particular applications for heavy duty vehicles for construction vehicles

Landscapes

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

Abstract

Pneumatique (1) pour véhicule de type génie civil comprenant une couche de sommet de protection (31) de largeur axiale LPN, comprenant des renforts métalliques élastiques, au moins une couche de travail (321, 322), comprenant des renforts métalliques, dont le module d’extension est au moins égal à 150 GPa, et formant, avec une direction circonférentielle (XX’), un angle au moins égale à 17° et au plus égale à 40°, les renforts métalliques de la couche de travail la plus radialement extérieure étant croisés avec les renforts métalliques de la couche de protection (31), une couche de triangulation (323), d’une largeur axiale LTN, la couche de triangulation (323) comprenant des renforts métalliques, formant, avec la direction circonférentielle (XX’), un angle ATN dont la valeur absolue est au moins égal à 50°, et tel que chaque couche de travail (321, 322) a une largeur axiale inférieure à LTN, et LTN est inférieure à LPN, et tel que la couche de protection (31) et la couche de triangulation (323) sont récouplées dans la zone axialement extérieure à l’extrémité axiale de la ou les couches de travail (321, 322). Figure d’abrégé : figure 3Tire (1) for an earthmover-type vehicle comprising a protective crown layer (31) of axial width LPN, comprising elastic metal reinforcements, at least one working layer (321, 322), comprising metal reinforcements, the extension modulus is at least equal to 150 GPa, and forming, with a circumferential direction (XX'), an angle at least equal to 17° and at most equal to 40°, the metal reinforcements of the most radially outer being crossed with the metal reinforcements of the protective layer (31), a triangulation layer (323), of an axial width LTN, the triangulation layer (323) comprising metal reinforcements, forming, with the circumferential direction (XX'), an angle ATN whose absolute value is at least equal to 50°, and such that each working layer (321, 322) has an axial width less than LTN, and LTN is less than LPN, and such that the protective layer (31) and the triangular layer ion (323) are recoupled in the axially outer zone at the axial end of the working layer(s) (321, 322). Abstract Figure: Figure 3

FR2007695A 2020-07-22 2020-07-22 optimized earthmover tire architecture Active FR3112717B1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
FR2007695A FR3112717B1 (en) 2020-07-22 2020-07-22 optimized earthmover tire architecture
PCT/FR2021/051289 WO2022018350A1 (en) 2020-07-22 2021-07-12 Optimised architecture of a civil engineering tyre

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR2007695 2020-07-22
FR2007695A FR3112717B1 (en) 2020-07-22 2020-07-22 optimized earthmover tire architecture

Publications (2)

Publication Number Publication Date
FR3112717A1 FR3112717A1 (en) 2022-01-28
FR3112717B1 true FR3112717B1 (en) 2022-06-24

Family

ID=72801742

Family Applications (1)

Application Number Title Priority Date Filing Date
FR2007695A Active FR3112717B1 (en) 2020-07-22 2020-07-22 optimized earthmover tire architecture

Country Status (2)

Country Link
FR (1) FR3112717B1 (en)
WO (1) WO2022018350A1 (en)

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5843583A (en) 1996-02-15 1998-12-01 N.V. Bekaert S.A. Cord with high non-structural elongation
BRPI0407523A (en) * 2003-02-17 2006-02-14 Technologie Michelin E Micheli pneumatic
CN100558979C (en) 2003-07-22 2009-11-11 贝卡尔特股份有限公司 Hybrid high elongation cord
FR2897076B1 (en) 2006-02-09 2008-04-18 Michelin Soc Tech ELASTIC COMPOSITE CABLE FOR TIRES.
FR3036319B1 (en) * 2015-05-18 2017-05-05 Michelin & Cie PNEUMATIC COMPRISING WORKING LAYERS CONSISTING OF UNIT THREADS

Also Published As

Publication number Publication date
WO2022018350A1 (en) 2022-01-27
FR3112717A1 (en) 2022-01-28

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Year of fee payment: 2

PLSC Publication of the preliminary search report

Effective date: 20220128

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