JP2664114B

A pneumatic tyre comprises a tread portion (2) with a pair of edges, a pair of axially spaced bead portions (4) each with a bead core (5), a pair of sidewalls (3) extending one from each edge of the tread portion (2) to the bead portion (4), a carcass (6) extending between the bead portions (4), a t...

Full description

Saved in:
Bibliographic Details
Main Author NAKADA YOKO
Format Patent
LanguageEnglish
Published 15.10.1997
Edition6
Subjects
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
Online AccessGet full text

Cover

More Information
Summary:A pneumatic tyre comprises a tread portion (2) with a pair of edges, a pair of axially spaced bead portions (4) each with a bead core (5), a pair of sidewalls (3) extending one from each edge of the tread portion (2) to the bead portion (4), a carcass (6) extending between the bead portions (4), a tread rubber layer (9) disposed radially outside the carcass (6) to define the tread portion (2), characterised by a sidewall rubber layer (10) disposed axially outside the carcass (6) in each sidewall (3), the sidewall rubber layer being softer than the tread rubber layer, and a protective rubber layer (11) disposed on the outer surface of the sidewall rubber layer (10) to define part of the outer surface of each sidewall (3), wherein the protective rubber layer is made of a fibre-reinforced rubber composition containing 10 to 50 parts by weight of short fibrous reinforcements, 20 to 70 parts by weight of carbon black, and 100 parts by weight of rubber base consisting of 20 to 100 parts by weight of natural rubber (NR) or isoprene rubber (IR) and 80 to 0 parts by weight of butadiene rubber (BR), the short fibrous reinforcements being oriented in the tyre circumferential direction.
Bibliography:Application Number: JP19920022147