HEAVY LOAD TIRE

To be able to improve life performance and uneven wear resistance performance.SOLUTION: A heavy-load tire 1 has a tread part 2 including a plurality of circumferential grooves 3 extending in a zigzag shape, a plurality of lateral grooves 4 connecting zigzag apexes 6 of the circumferential grooves 3,...

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Bibliographic Details
Main Author SUGIURA TAKASHI
Format Patent
LanguageEnglish
Japanese
Published 09.04.2024
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Summary:To be able to improve life performance and uneven wear resistance performance.SOLUTION: A heavy-load tire 1 has a tread part 2 including a plurality of circumferential grooves 3 extending in a zigzag shape, a plurality of lateral grooves 4 connecting zigzag apexes 6 of the circumferential grooves 3, and a plurality of hexagonal blocks 5 formed by the circumferential grooves 3 and the lateral grooves 4. The circumferential grooves 3 each have a groove depth D1 of 21 mm or more. A three-dimensional siping 7 crossing the hexagonal blocks 5 is disposed on each of the hexagonal blocks 5. The lateral groove 4 includes a raised portion 9 connecting the hexagonal blocks 5 adjacent to each other in a tire circumferential direction by rising of a groove bottom 4a of the lateral groove 4.SELECTED DRAWING: Figure 1 【課題】 ライフ性能と耐偏摩耗性能とを向上することができる。【解決手段】 ジグザグ状に延びる複数の周方向溝3と、周方向溝3のジグザグの頂部6の間を繋ぐ複数の横溝4と、周方向溝3と横溝4とで形成される複数の六角形状ブロック5とを含むトレッド部2を有する重荷重用タイヤ1である。周方向溝3の溝深さD1は、21mm以上である。六角形状ブロック5のそれぞれには、六角形状ブロック5を横断する3次元サイプ7が設けられている。横溝4は、横溝4の溝底4sが隆起することでタイヤ周方向に隣接する六角形状ブロック5を連結する隆起部9を含んでいる。【選択図】図1
Bibliography:Application Number: JP20220155362