Patent classifications
B
PERFORMING OPERATIONS; TRANSPORTING
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B60
VEHICLES IN GENERAL
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B60C
VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
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15/00
Tyre beads, e.g. ply turn-up or overlap
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B60C15/06
Flipper strips, fillers, or chafing strips; and reinforcing layers for the construction of the bead
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B60C15/0628
comprising a bead reinforcing layer
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B60C15/0653
with particular configuration of the cords in the respective bead reinforcing layer
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B60C15/0653

PNEUMATIC TIRE
20250282185 · 2025-09-11 · ·

A pneumatic tire comprises a bead portion, a carcass, a bead reinforcing layer and a bead apex rubber. The carcass comprises a first carcass ply of carcass cords arranged at an angle of 60 to 90 degrees with respect to the tire circumferential direction. The bead reinforcing layer comprises a first reinforcing ply of bead reinforcing cords arranged at an angle of 60 to 90 degrees with respect to the tire circumferential direction. The first carcass ply is composed of a main portion and a turnup portion continued from the main portion. The first reinforcing ply comprises a first portion and a second portion continued from the first portion. The radially outer end of the second portion is located on the axially outer side of the bead apex rubber and on the radially inner side of the radially outer end of the bead apex rubber.