PNEUMATIC TIRE

• Main Author: HAYASHI SHINTARO
• Format: Patent
• Language: English; Japanese
• Published: 24.08.2015
• 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 provide a pneumatic tire which makes compatible steering stability on a dry road face and drainage on a wet road face, and is suppressed in an abrupt performance change at the progress of wear.SOLUTION: In a pneumatic tire, a rotation direction is designated, a circumferential groove 3, a plurality of first inclined grooves 4 and second inclined grooves 6 are formed at a tread surface 2, a first land part 5 is defined by the circumferential groove 3 and the first inclined grooves 4, a first recess 9 extending along the circumferential groove 3 is formed at the first land part 5, a first sidewall 5c which is protruded to the inside of a radial direction is formed of the first recess 9 at the first land part 5, a second land part 7 is defined by the circumferential groove 3 and the second inclined grooves 6, a second recess 10 extending along the circumferential groove 3 is formed at the second land part 7, and a second sidewall 7a which is recessed to the inside of the radial direction is defined by the second recess 10, and formed at the second land part 7. 【課題】ドライ路面での操縦安定性とウェット路面での排水性とを両立させ、かつ、摩耗進展時の急激な性能変化を抑えた空気入りタイヤを提供すること。【解決手段】回転方向が指定され、トレッド踏面２に、周方向溝３と、複数の第一傾斜溝４と第二傾斜溝６を有し、前記周方向溝３と前記第一傾斜溝４により、第一の陸部５が区画され、前記第一の陸部５に、前記周方向溝３に沿って延びる第一の凹部９を有し、前記第一の凹部９により、前記第一の陸部５に径方向内側に凸の第一の側壁５ｃが形成され、前記周方向溝３と前記第二傾斜溝６とにより、第二の陸部７が区画され、前記第二の陸部７に、前記周方向溝３に沿って延びる第二の凹部１０を有し、前記第二の凹部７により、前記第二の陸部７に径方向内側に凸の形状である第二の側壁７ａが区画形成されることを特徴とする。【選択図】図１