PNEUMATIC TIRE

PROBLEM TO BE SOLVED: To provide a pneumatic tire of which the bead part durability is increased by arranging a film made of a thermoplastic resin on the tire internal surface, and at the same time, arranging a rubber chafer on the bead part. SOLUTION: The film 1 made of the thermoplastic resin is a...

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Bibliographic Details
Main Authors MASUDA AKIHIRO, FUKUTOMI TAKAYUKI
Format Patent
LanguageEnglish
Published 21.10.2004
Edition7
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
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Summary:PROBLEM TO BE SOLVED: To provide a pneumatic tire of which the bead part durability is increased by arranging a film made of a thermoplastic resin on the tire internal surface, and at the same time, arranging a rubber chafer on the bead part. SOLUTION: The film 1 made of the thermoplastic resin is arranged on the tire internal surface as an air permeation preventive layer. At the same time, the rubber chafer 4 is arranged on the bead part 2 in a manner to wrap a bead core 3 from the tire internal side to the external side, and at the bead part 2, the film 1 and the rubber chafer 4 are partially superposed for this pneumatic tire. In the pneumatic tire, when the film 1 is taken as A and the tire internal part of the rubber chafer 4 is taken as B, the following relationship is satisfied. The equation is (10% modulus of A×thickness of A)>(10% modulus of B×thickness of B). Thus, regarding the film and the rubber chafer, the relationship between the 10% modulus and the thickness is specified, and therefore, manufacturing failures can be prevented from occurring, and at the same time, the bead part durability can be increased. COPYRIGHT: (C)2005,JPO&NCIPI
Bibliography:Application Number: JP20030084897