AIRCRAFT TIRE WITH REDUCED WEIGHT

• Main Author: UEYOKO KIYOSHI
• Format: Patent
• Language: English; Japanese
• Published: 27.05.2021
• 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

To provide an improved aircraft tire which can support the high speed and high load while being reduced in weight.SOLUTION: A pneumatic tire includes a carcass and a belt reinforcement structure. The belt reinforcement structure comprises a main belt structure which includes a first belt layer and a first zigzag belt reinforcement structure. The first belt layer has a cord which is arranged at an angle equal to or less than 5 degrees with respect to the intermediate circumferential surface. The first zigzag belt reinforcement structure forms two layers of cords. The cords are inclined at 5 to 30 degrees with respect to the center circumferential surface and alternately extend to the folded point of the end in each lateral direction. The first zigzag belt reinforcement structure is wider than the first belt layer. The belt reinforcement structure further includes an auxiliary belt which is located on the radial direction outer side of the main belt. The auxiliary belt is the zigzag belt. The belt reinforcement structure further includes a cut protector belt 70 that is located on the radial direction outer side of an auxiliary layer. The cut protector belt 70 is the zigzag belt or geodesic line belt.SELECTED DRAWING: Figure 3 【課題】軽量化されつつ高速、高負荷に対応できる改良された航空機用タイヤを提供する。【解決手段】カーカスとベルト補強構造を有する空気入りタイヤであって、ベルト補強構造は、第一のベルト層と第一のジグザグベルト補強構造とを備えた主ベルト構造を有し、第一のベルト層は中間円周面に対して５度以下の角度で配置されたコードを有し、第一のジグザグベルト補強構造は２層のコードを形成し、コードはタイヤの中央円周面に対して５から３０度に傾き、各横方向の端部の折り返し点まで交互に延びており、第一のジグザグベルト補強構造は第一のベルト層よりも幅広であり、ベルト補強構造は主ベルトの半径方向外側に位置する補助ベルトをさらに備え、補助ベルトはジグザグベルトであり、ベルト補強構造は補助層の半径方向外側に位置するカットプロテクターベルト７０をさらに備え、カットプロテクターベルト７０はジグザグベルトまたは測地線ベルトである。【選択図】図３