LIGHTWEIGHT TYRE COMPRISING A LAYER OF CIRCUMFERENTIAL REINFORCING ELEMENTS

LIGHTWEIGHT TYRE COMPRISING A LAYER OF CIRCUMFERENTIAL REINFORCING ELEMENTS

The invention relates to a tyre (1) with a radial carcass reinforcement, comprising two working crown layers (41, 42) and one layer of circumferential reinforcing elements (43), which are present only to form the crown reinforcement (4) over at least 75 % of the width L5 of the tread (5), the absolu...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: FOURNIER, Orel, JOULIN, Emmanuel
Format: Patent
Sprache:eng ; fre ; ger
Schlagworte:
DEVICES OR ARRANGEMENTS RELATED TO TYRES
PERFORMING OPERATIONS
REPAIRING, OR CONNECTING VALVES TO, INFLATABLE ELASTIC BODIESIN GENERAL
TRANSPORTING
TYRE CHANGING OR REPAIRING
TYRE INFLATION
VEHICLE TYRES
VEHICLES IN GENERAL
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Beschreibung
Zusammenfassung:The invention relates to a tyre (1) with a radial carcass reinforcement, comprising two working crown layers (41, 42) and one layer of circumferential reinforcing elements (43), which are present only to form the crown reinforcement (4) over at least 75 % of the width L5 of the tread (5), the absolute value of the difference between the absolute values of the angles α2 and α1 being greater than 7°, α2 being greater than α1 in absolute terms, the mean angle α satisfying the relationship: 13+131*exp(-L/100) < α < 28+110*exp(-L/100). According to the invention, the secant modulus of elasticity at 10% elongation of at least one skim coat of at least one working crown layer (41, 42) is less than 8.5 MPa.