TIRE

• Main Author: HIBINO ATSUSHI
• Format: Patent
• Language: English; Japanese
• Published: 05.04.2018
• 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

PROBLEM TO BE SOLVED: To improve noise performance and wet performance with good balance.SOLUTION: In a tire 1, a tread part 2 is provided with: a first middle main groove 3A; a second middle main groove 3B; a crown vertical groove 5 between the first middle main groove 3A and the second middle main groove 3B; a first crown lateral groove 6A splicing the crown vertical groove 5 to the first middle main groove 3A; and a second crown lateral groove 6B splicing the crown vertical groove 5 to the second middle main groove 3B. The first crown lateral groove 6A and the second crown lateral groove 6B are arranged so that a phase thereof is deviated from each other in a tire circumferential direction. The crown vertical groove 5 is provided with a crown tie-bar 15 whose groove bottom 5s is raised.SELECTED DRAWING: Figure 1 【課題】騒音性能とウェット性能とをバランス良く向上させ得る。【解決手段】トレッド部２に、第１ミドル主溝３Ａ、第２ミドル主溝３Ｂ、第１ミドル主溝３Ａ及び第２ミドル主溝３Ｂの間のクラウン縦溝５、クラウン縦溝５と第１ミドル主溝３Ａとを継ぐ第１クラウン横溝６Ａ、及び、クラウン縦溝５と第２ミドル主溝３Ｂとを継ぐ第２クラウン横溝６Ｂが設けられたタイヤ１である。第１クラウン横溝６Ａと第２クラウン横溝６Ｂとは、タイヤ周方向に位相をずらして配される。クラウン縦溝５は、溝底５ｓを隆起させたクラウンタイバー１５が設けられている。【選択図】図１