TIRE MANUFACTURING METHOD AND TIRE

• Main Authors: TANAKA ATSUSHI, KIKUCHI SUKEHITO, KISHIZOE ISAMU, TSUJI MITSUO
• Format: Patent
• Language: English; Japanese
• Published: 13.03.2023
• Subjects: APPARATUS FOR APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TOSURFACES, IN GENERAL; APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES; PERFORMING OPERATIONS; PROCESSES FOR APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TOSURFACES, IN GENERAL; REPAIRING, OR CONNECTING VALVES TO, INFLATABLE ELASTIC BODIESIN GENERAL; SPRAYING OR ATOMISING IN GENERAL; TRANSPORTING; TYRE CHANGING OR REPAIRING; TYRE INFLATION; VEHICLE TYRES; VEHICLES IN GENERAL

To provide a tire manufacturing method and a tire capable of preventing ozone cracks from occurring at each bottom of grooves formed in a tread even when a vulcanized tire is stored in a non-inflated state for a long period of time.SOLUTION: A silicone fluid F is supplied from a spray nozzle 12a to a bottom 4a of a circumferential groove 3a formed in a tread 2 of a vulcanized tire 1, and the silicone fluid F forms a silicone film S with a thickness of 150 nm or more on the bottom 4a.SELECTED DRAWING: Figure 6 【課題】加硫されたタイヤを非インフレーション状態で長期間保管した場合でも、トレッドに形成されている溝の底部にオゾンクラックが発生することを防止できるタイヤの製造方法およびタイヤを提供する。【解決手段】加硫されたタイヤ１のトレッド２に形成されている周方向溝３ａの底部４ａに対して、スプレーノズル１２ａからシリコーン液Ｆを供給し、このシリコーン液Ｆによって、底部４ａに膜厚が１５０ｎｍ以上のシリコーン被膜Ｓを形成する。【選択図】図６