FR2248161A2 - Hoop reinforcement plies for radial tyres - comprise both metallic and aromatic polyamide based plies - Google Patents

Hoop reinforcement plies for radial tyres - comprise both metallic and aromatic polyamide based plies

Info

Publication number
FR2248161A2
FR2248161A2 FR7337065A FR7337065A FR2248161A2 FR 2248161 A2 FR2248161 A2 FR 2248161A2 FR 7337065 A FR7337065 A FR 7337065A FR 7337065 A FR7337065 A FR 7337065A FR 2248161 A2 FR2248161 A2 FR 2248161A2
Authority
FR
France
Prior art keywords
plies
ply
aromatic polyamide
tyres
metallic
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.)
Granted
Application number
FR7337065A
Other languages
French (fr)
Other versions
FR2248161B2 (en
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.)
Uniroyal SA
Original Assignee
Uniroyal SA
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 Uniroyal SA filed Critical Uniroyal SA
Priority to FR7337065A priority Critical patent/FR2248161A2/en
Publication of FR2248161A2 publication Critical patent/FR2248161A2/en
Application granted granted Critical
Publication of FR2248161B2 publication Critical patent/FR2248161B2/fr
Granted legal-status Critical Current

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
    • B60C9/2009—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 comprising plies of different materials

Landscapes

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

Abstract

Parent patent described construction of radial ply tyres with two ancillary annular reinforcement plies incorporated between the carcass and the tread, where the outer (radially) ply was made of steel cords and the inner ply was relatively weak and based on synthetic resin filament cords, the tyres being suitable for maximum speeds up to 220 km/h. In this addition, the inner ply is made of the aromatic polyamide 'Fibre B' or 'Kevlar'. Use of an inner resin based ply with filament strengths is not > the strengths of the metal filaments in the outer layer increases the hoop stiffness of the structure still further without the loss of adhesion to the carcass body associated with use of steel plies for both the annular layers. Fatigue endurance remains good, e.g. >100 h at >160 km/h.
FR7337065A 1973-10-17 1973-10-17 Hoop reinforcement plies for radial tyres - comprise both metallic and aromatic polyamide based plies Granted FR2248161A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7337065A FR2248161A2 (en) 1973-10-17 1973-10-17 Hoop reinforcement plies for radial tyres - comprise both metallic and aromatic polyamide based plies

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7337065A FR2248161A2 (en) 1973-10-17 1973-10-17 Hoop reinforcement plies for radial tyres - comprise both metallic and aromatic polyamide based plies

Publications (2)

Publication Number Publication Date
FR2248161A2 true FR2248161A2 (en) 1975-05-16
FR2248161B2 FR2248161B2 (en) 1976-05-14

Family

ID=9126536

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7337065A Granted FR2248161A2 (en) 1973-10-17 1973-10-17 Hoop reinforcement plies for radial tyres - comprise both metallic and aromatic polyamide based plies

Country Status (1)

Country Link
FR (1) FR2248161A2 (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2389503A1 (en) * 1977-05-03 1978-12-01 Uniroyal Gmbh
US4456048A (en) * 1983-01-24 1984-06-26 Grumman Aerospace Corporation Dual-modulus band banded tire
EP0333434A2 (en) * 1988-03-15 1989-09-20 Sumitomo Rubber Industries Limited Radial tyre for motorcycle
US4936366A (en) * 1987-12-23 1990-06-26 The Goodyear Tire & Rubber Company Pneumatic tire
US5662751A (en) * 1994-09-20 1997-09-02 Michelin Recherche Et Technique S.A. Tire with a specified two-ply steel-aramid belt package

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2389503A1 (en) * 1977-05-03 1978-12-01 Uniroyal Gmbh
US4456048A (en) * 1983-01-24 1984-06-26 Grumman Aerospace Corporation Dual-modulus band banded tire
US4936366A (en) * 1987-12-23 1990-06-26 The Goodyear Tire & Rubber Company Pneumatic tire
EP0333434A2 (en) * 1988-03-15 1989-09-20 Sumitomo Rubber Industries Limited Radial tyre for motorcycle
EP0333434A3 (en) * 1988-03-15 1990-12-05 Sumitomo Rubber Industries Limited Radial tyre for motorcycle
US5662751A (en) * 1994-09-20 1997-09-02 Michelin Recherche Et Technique S.A. Tire with a specified two-ply steel-aramid belt package
US5863362A (en) * 1994-09-20 1999-01-26 Michelin Recherche Et Technique S.A. Tire with a specified two-ply steel-aramid belt package
US5958162A (en) * 1994-09-20 1999-09-28 Michelin Recherche Et Technique, S.A. Tire with a specified two-ply steel-aramid belt package

Also Published As

Publication number Publication date
FR2248161B2 (en) 1976-05-14

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