TIRE WITH A CONDUCTIVE TREAD CHIMNEY COMPONENT

• Main Authors: KAES, Christian, GABRIEL, Sabine Chantal, REGNIER, Antoine Francois
• Format: Patent
• Language: English; French; German
• Published: 13.12.2023
• 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

A tire (10, 110) is disclosed including axially spaced apart annular bead cores (12, 112); a carcass ply (14, 114) extending between the bead cores; a belt package (24, 124) arranged radially outwardly of the carcass ply and comprising an overlay coat (25, 125); a tread (20, 120) disposed radially outwardly of the belt package and comprising a tread band (22a, 22b. 122a, 122b) and a tread base (23, 123) adjacent the overlay coat; a sidewall (30, 130) overlying the carcass in a region between the belt package and one of the bead cores; a chafer portion (32, 132) adjacent to a radially inner portion of the sidewall and positioned around a portion of the bead core for contacting a rim; and a shoulder wedge (28, 128) arranged in a shoulder portion of the tire between the sidewall and the belt package, the shoulder wedge being at least partially inserted between the belt package and the carcass ply. The tread (20, 120) includes a tread chimney component (40, 140) extending from the shoulder wedge to the rolling surface, at least part of the tread chimney component extending across the tread band. The overlay coat, the tread band except for the tread chimney component, the tread base and the sidewall are made from non-conductive rubber. A conductive path between the rolling surface and the rim is provided across the tread chimney component (40, 140), the shoulder wedge (28, 128), the carcass ply (14, 114) and the chafer portion (32, 132).