Triangular bead construction for pneumatic tire with extended load carrying capacity

A pneumatic tire with an increased load carrying capacity (extended load index) but compatible with conventional, commercially available wheel rims, has a modified carcass ply line. The pneumatic tire (746) has a tread area (712) and a carcass structure (728) including two bead areas (750a,750b), at...

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Bibliographic Details
Main Authors VAN NGUYEN, GIA, PHILPOTT, FRANK, ROESGEN, ALAIN EMILE FRANCOIS, COLANTONIO, LAURENT
Format Patent
LanguageEnglish
French
German
Published 16.04.2003
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:A pneumatic tire with an increased load carrying capacity (extended load index) but compatible with conventional, commercially available wheel rims, has a modified carcass ply line. The pneumatic tire (746) has a tread area (712) and a carcass structure (728) including two bead areas (750a,750b), at least one cord-reinforced elastomeric ply (730) extending through sidewalls (726a,726) between the bead areas (750a,750b) and the tread area (712), and a belt structure (718) between the tread area (712) and the carcass structure (728). The tire (746) has bead areas (750a,750b) containing triangular shaped beads so that the ply line (PL''') causes the bead areas to better secure the tire to the rim during high stress conditions.
Bibliography:Application Number: EP20010124223