WO2013015375A1 - Tire - Google Patents
Tire Download PDFInfo
- Publication number
- WO2013015375A1 WO2013015375A1 PCT/JP2012/069007 JP2012069007W WO2013015375A1 WO 2013015375 A1 WO2013015375 A1 WO 2013015375A1 JP 2012069007 W JP2012069007 W JP 2012069007W WO 2013015375 A1 WO2013015375 A1 WO 2013015375A1
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- WIPO (PCT)
- Prior art keywords
- groove
- tire
- width direction
- tread width
- circumferential direction
- Prior art date
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
- B60C11/00—Tyre tread bands; Tread patterns; Anti-skid inserts
- B60C11/03—Tread patterns
- B60C11/0302—Tread patterns directional pattern, i.e. with main rolling direction
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
- B60C11/00—Tyre tread bands; Tread patterns; Anti-skid inserts
- B60C11/03—Tread patterns
- B60C11/12—Tread patterns characterised by the use of narrow slits or incisions, e.g. sipes
- B60C11/1236—Tread patterns characterised by the use of narrow slits or incisions, e.g. sipes with special arrangements in the tread pattern
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
- B60C11/00—Tyre tread bands; Tread patterns; Anti-skid inserts
- B60C11/03—Tread patterns
- B60C2011/0337—Tread patterns characterised by particular design features of the pattern
- B60C2011/0339—Grooves
- B60C2011/0341—Circumferential grooves
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
- B60C11/00—Tyre tread bands; Tread patterns; Anti-skid inserts
- B60C11/03—Tread patterns
- B60C2011/0337—Tread patterns characterised by particular design features of the pattern
- B60C2011/0339—Grooves
- B60C2011/0358—Lateral grooves, i.e. having an angle of 45 to 90 degees to the equatorial plane
- B60C2011/0365—Lateral grooves, i.e. having an angle of 45 to 90 degees to the equatorial plane characterised by width
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
- B60C11/00—Tyre tread bands; Tread patterns; Anti-skid inserts
- B60C11/03—Tread patterns
- B60C2011/0337—Tread patterns characterised by particular design features of the pattern
- B60C2011/0339—Grooves
- B60C2011/0358—Lateral grooves, i.e. having an angle of 45 to 90 degees to the equatorial plane
- B60C2011/0372—Lateral grooves, i.e. having an angle of 45 to 90 degees to the equatorial plane with particular inclination angles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
- B60C11/00—Tyre tread bands; Tread patterns; Anti-skid inserts
- B60C11/03—Tread patterns
- B60C11/12—Tread patterns characterised by the use of narrow slits or incisions, e.g. sipes
- B60C11/1204—Tread patterns characterised by the use of narrow slits or incisions, e.g. sipes with special shape of the sipe
- B60C2011/1209—Tread patterns characterised by the use of narrow slits or incisions, e.g. sipes with special shape of the sipe straight at the tread surface
Definitions
- the present invention relates to a tire in which a plurality of inclined grooves inclined with respect to the tire circumferential direction are formed in the tire circumferential direction, and a sipe extending in the tread width direction is formed in a block-shaped land portion provided between the inclined grooves.
- various tread patterns are used in pneumatic tires (hereinafter referred to as tires) mounted on passenger cars and the like in order to improve performance on icy and snowy roads.
- tires pneumatic tires mounted on passenger cars and the like
- the tire is formed in the tread central part.
- a tire provided with a zigzag land portion extending in the circumferential direction is known.
- a zigzag sipe extending in the tread width direction is formed in the land portion (see Patent Document 1).
- a plurality of inclined grooves inclined in the tire circumferential direction are formed in the tire circumferential direction, and a sipe extending in the tread width direction is formed in the block-shaped land portion provided between the inclined grooves.
- the inclined groove extends from the center in the tread width direction including the tire equator line toward the outside in the tread width direction.
- the inclined groove includes a wide portion having a first groove width and a narrow portion having a second groove width narrower than the first groove width. The wide portion and the narrow portion are alternately repeated from the central portion toward the outside in the tread width direction.
- FIG. 1 is a partial plan development view of a tread of a pneumatic tire 10 according to the first embodiment.
- FIG. 2 is a partially enlarged plan view of the tread of the pneumatic tire 10 according to the first embodiment.
- FIG. 3 is a partial plan development view of the tread of the pneumatic tire 10A according to the second embodiment.
- FIG. 4 is a partial plan view of the tread of the pneumatic tire 10B according to the third embodiment.
- FIG. 1 is a partial plan development view of a tread of the pneumatic tire 10 according to the first embodiment. As shown in FIG. 1, a linear circumferential groove 20 and a circumferential groove 30 extending in the tire circumferential direction are formed in the pneumatic tire 10.
- the pneumatic tire 10 is a so-called winter tire that can withstand use during snowfall, and has a tread pattern in which a rotation direction is specified when mounted on an automobile.
- the winter tire here refers to a tire including a studless tire that places importance on performance on icy and snowy roads, and an all-season tire that ensures a balanced performance on icy and non-icey roads.
- the pneumatic tire 10 may be filled with an inert gas such as nitrogen gas instead of air.
- the thin line part means the area
- a plurality of block land portions 40 are provided between the circumferential groove 20 and the circumferential groove 30. That is, the block-like land portion 40 is provided in a region including the tire equator line CL.
- the block land portion 40 is formed with a sipe 50 extending in the tread width direction D T.
- the pneumatic tire 10 may be formed with a sipe (not shown).
- the pneumatic tire 10 has a sipe extending in the tread width direction D T, it may be formed with sipes extending in the tire circumferential direction D C is.
- the position of the tire equator line CL are linear sipes extending along the tire circumferential direction D C (not shown) is formed.
- Block-shaped land portion 40 is provided between the inclined grooves 100 inclined relative to the tire circumferential direction D C.
- Inclined groove 100 is formed in plurality in the tire circumferential direction D C.
- the inclined groove 100 is a zigzag groove extending from the central portion of the tread width direction DT , specifically, from the tire equator line CL toward the tread width direction DT .
- the central portion of the tread width direction DT refers to the tire equator line CL in a state where a normal load is applied to the pneumatic tire 10 set to a normal internal pressure defined by the Japan Automobile Tire Association (JATMA) or the like. It means in the region of 60% of the tread width.
- JTMA Japan Automobile Tire Association
- FIG. 2 is a partially enlarged plan view of the tread of the pneumatic tire 10. As shown in FIG. 2, the inclined groove 100 includes a wide portion 100w and a narrow portion 100n. Specifically, the wide portions 100w and the narrow portions 100n are alternately repeated.
- the wide portion 100w extends from the center of the tread width direction DT including the tire equator line CL toward the outside of the tread width direction DT and has a first groove width.
- the narrow portion 100n is a portion having a second groove width that is narrower than the first groove width.
- the wide portion 100w and a narrow portion 100n are alternately repeated toward the tread widthwise direction D T outside the tread width direction D T.
- the groove width may be the width of the inclined groove 100 in a direction orthogonal to the extension line L1 of the inclined groove 100 along the direction in which the inclined groove 100 extends.
- the groove width may be the width of the inclined groove 100 in a direction orthogonal to the extension line L2 along the direction in which the inclined groove 100 extends.
- the inclined grooves 100 are respectively formed in one region and the other region in the tread width direction DT with respect to the tire equator line CL.
- the inclined groove 100 has a substantially symmetric (line symmetric) shape in the one region and the other region.
- the inclined groove 100 formed in the one region and the block-shaped land portion 40 provided in the other region face each other in the center portion of the tread width direction DT including the tire equator line CL. .
- the inclined groove 100 formed in the other region and the block-shaped land portion 40 provided in the one region face each other. That is, in the said one region and the other in the region, the arrangement position of the block-shaped land portion 40 and the inclined groove 100 is displaced in the tire circumferential direction D C.
- the arrangement position of the inclined groove 100 (phase) are shifted in the tire circumferential direction D C, it is possible to reduce the pattern noise.
- groove wall 100 ⁇ extending along the tread width direction D T is formed, and functions groove wall 100 ⁇ as edges in the tire circumferential direction D C, traction performance is improved.
- the end of the inclined groove 100 outside the tread width direction DT communicates with the circumferential groove 20 (circumferential groove 30).
- the inclined groove 100 extends to the circumferential groove 20 (circumferential groove 30) without intersecting with other than the sipe 50. In other words, since there are no intersecting grooves in the center region, water can be smoothly discharged toward the outside of the tread width direction DT , and drainage performance is improved.
- the inclined groove 100 includes a rectangular first groove portion 110 and a second groove portion 120.
- the second groove portion 120 communicates with the first groove portion 110 on the outer side in the tread width direction DT than the first groove portion 110.
- the first groove part 110 and the second groove part 120 have a parallelogram shape.
- the second groove part 120 forms a narrow part 100n by shifting to the outer side in the tread width direction DT from the first groove part 110.
- the inclined groove 100 extends to the outer side in the tread width direction D T by repeating rectangular groove portions such as the first groove portion 110 and the second groove portion 120.
- second groove 120 It is preferable to form the narrow portion 100n by shifting to the outer side in the tread width direction than the first groove portion 110.
- FIG. 3 is a partial plan development view of the tread of the pneumatic tire 10A according to the second embodiment.
- a different part from the pneumatic tire 10 mentioned above is mainly demonstrated.
- the shape of the inclined groove 100A is slightly different in the pneumatic tire 10A.
- the inclined groove 100A includes a first groove part 110A and a second groove part 120A.
- the second groove portion 120A communicates with the first groove portion 110A on the outer side in the tread width direction DT than the first groove portion 110A.
- the inclined groove 100A extends to the outer side in the tread width direction DT by repeating square groove portions such as the first groove portion 110A and the second groove portion 120A.
- Acute angle side formed between the tire circumferential direction D C and the inclined groove 100A is smaller than the inclined grooves 100 described above, similarly to the inclined groove 100, second groove 120A is the tread width direction than the first groove portion 110A It is preferable to form the narrow portion 100n by shifting outward.
- FIG. 4 is a partial plan view of the tread of the pneumatic tire 10B according to the third embodiment.
- a different part from the pneumatic tire 10 mentioned above is mainly demonstrated.
- the shape of the inclined groove 200 is different in the pneumatic tire 10B.
- the inclined groove 200 includes a rectangular first groove portion 210 and a second groove portion 220.
- the second groove part 220 communicates with the first groove part 210 on the outer side in the tread width direction DT than the first groove part 210.
- the inclined groove 200 extends to the outer side in the tread width direction D T by repeating square groove portions such as the first groove portion 210 and the second groove portion 220. Such a shape is the same as the inclined groove 100 described above.
- the second groove 220 in a direction inclined groove 200 extends, by deviating the tire circumferential direction D C than the first groove 210 to form a narrow portion 200n.
- it is the tire circumferential direction D C and the inclined grooves 200 and the acute side of the angle formed by 30 degrees or more, this case, the second groove 220 in a direction inclined groove 200 extends, the by deviating the tire circumferential direction D C than first groove 210, it is preferable to form a narrow portion 200n.
- the inclined groove (for example, the inclined groove 100) extends from the center portion of the tread width direction DT including the tire equator line CL toward the outside of the tread width direction DT. Exists. Moreover, the wide portion and the narrow portion of the inclined groove, are alternately repeated toward the center portion of the tread width direction D T in the tread width direction D T outside.
- the inclined groove 100 extends toward the outer side of the tread width direction DT and communicates with the circumferential grooves 20 and 30, so that rainwater that has entered the inclined groove 100 can be efficiently drained.
- the performance on wet roads and icy and snowy roads can be achieved at a high level.
- the arrangement position of the block-shaped land portion 40 and the inclined groove 100 is displaced in the tire circumferential direction D C . For this reason, since the entering snow is further restricted in the escape place, it can contribute to further improvement of the traction and braking force on the icy and snowy road.
- the second groove portion 120 forms a narrow portion 100n by shifting to the outer side in the tread width direction DT than the first groove portion 110.
- the second groove 220 in a direction inclined groove 200 extends, by deviating the tire circumferential direction D C than the first groove 210 to form a narrow portion 200n.
- an increase in the edge component of the inclined groove can contribute to improvement of traction and braking force on an icy and snowy road, and handling performance.
- the first groove portion 110 and the second groove portion 120 have a quadrangular shape.
- the first groove portion 110 and the second groove portion 120 are not limited to a quadrangular shape, for example, an elliptical shape. But you can.
- the arrangement position of the block-shaped land portion 40 and the inclined groove 100 may be coincident in the tire circumferential direction D C.
- the central portion in the tread width direction DT is a tread including the tire equator line CL in a state where a normal load is applied to the pneumatic tire 10 set to a normal internal pressure defined by JATMA or the like.
- a normal load is applied to the pneumatic tire set to the normal internal pressure. It may also mean a region of 60% of the “contact width” of the tread with respect to the center in the tread width direction.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Tires In General (AREA)
Abstract
In this tire, inclined grove portions (100) comprise: wide sections (100w) that include the central line of the tire, extend from the central portion in the tread width direction towards the outside in the tread width direction, and have a first groove width; and narrow sections (100n) that have a second groove width narrower than the first groove width. The wide sections (100w) and the narrow sections (100n) repeat alternately from the central portion to the outside in the tread width direction.
Description
本発明は、タイヤ周方向に対して傾斜する傾斜溝がタイヤ周方向において複数形成され、傾斜溝間に設けられるブロック状陸部にはトレッド幅方向に延びるサイプが形成されたタイヤに関する。
The present invention relates to a tire in which a plurality of inclined grooves inclined with respect to the tire circumferential direction are formed in the tire circumferential direction, and a sipe extending in the tread width direction is formed in a block-shaped land portion provided between the inclined grooves.
従来、乗用自動車などに装着される空気入りタイヤ(以下、タイヤ)では、氷雪路での性能向上を図るため様々なトレッドパターンが用いられている。例えば、トレッド幅方向におけるトレッド中央部に、タイヤ周方向に対して傾斜する複数の傾斜溝と、隣接する傾斜溝間にトレッド幅方向に延びるラグ溝とを形成することによって、トレッド中央部にタイヤ周方向に延びるジグザグ状の陸部が設けられたタイヤが知られている。また、当該陸部には、トレッド幅方向に延びるジグザグ状のサイプが形成されている(特許文献1参照)。
Conventionally, various tread patterns are used in pneumatic tires (hereinafter referred to as tires) mounted on passenger cars and the like in order to improve performance on icy and snowy roads. For example, by forming a plurality of inclined grooves inclined with respect to the tire circumferential direction in the tread central part in the tread width direction and lug grooves extending in the tread width direction between adjacent inclined grooves, the tire is formed in the tread central part. A tire provided with a zigzag land portion extending in the circumferential direction is known. Further, a zigzag sipe extending in the tread width direction is formed in the land portion (see Patent Document 1).
しかしながら、近年、乗用自動車の性能向上に伴い、湿潤路及び氷雪路での性能をより高い次元で両立したタイヤが求められていた。
However, in recent years, with the improvement in performance of passenger cars, there has been a demand for tires that achieve higher performance on wet and icy roads.
第1の特徴に係るタイヤにおいて、タイヤ周方向に対して傾斜する傾斜溝がタイヤ周方向において複数形成され、前記傾斜溝間に設けられるブロック状陸部にはトレッド幅方向に延びるサイプが形成される。前記傾斜溝は、タイヤ赤道線を含むトレッド幅方向の中央部からトレッド幅方向外側に向かって延在する。前記傾斜溝は、第1溝幅を有する幅広部分と、前記第1溝幅よりも狭い第2溝幅を有する幅狭部分とを含む。前記幅広部分と前記幅狭部分とは、前記中央部からトレッド幅方向外側に向かって交互に繰り返される。
In the tire according to the first feature, a plurality of inclined grooves inclined in the tire circumferential direction are formed in the tire circumferential direction, and a sipe extending in the tread width direction is formed in the block-shaped land portion provided between the inclined grooves. The The inclined groove extends from the center in the tread width direction including the tire equator line toward the outside in the tread width direction. The inclined groove includes a wide portion having a first groove width and a narrow portion having a second groove width narrower than the first groove width. The wide portion and the narrow portion are alternately repeated from the central portion toward the outside in the tread width direction.
次に、実施形態に係るタイヤ(空気入りタイヤ)について、図面を参照しながら説明する。なお、以下の図面の記載において、同一または類似の部分には、同一または類似の符号を付している。ただし、図面は模式的なものであり、各寸法の比率などは現実のものとは異なることに留意すべきである。
Next, the tire (pneumatic tire) according to the embodiment will be described with reference to the drawings. In the following description of the drawings, the same or similar parts are denoted by the same or similar reference numerals. However, it should be noted that the drawings are schematic and ratios of dimensions and the like are different from actual ones.
したがって、具体的な寸法などは以下の説明を参酌して判断すべきである。また、図面相互間においても互いの寸法の関係や比率が異なる部分が含まれ得る。
Therefore, specific dimensions should be determined in consideration of the following explanation. Moreover, the part from which the relationship and ratio of a mutual dimension differ also in between drawings may be contained.
[第1実施形態]
(1)空気入りタイヤの概略構成
図1は、第1実施形態に係る空気入りタイヤ10のトレッドの一部平面展開図である。図1に示すように、空気入りタイヤ10には、タイヤ周方向に延びる直線状の周方向溝20及び周方向溝30が形成される。 [First Embodiment]
(1) Schematic Configuration of Pneumatic Tire FIG. 1 is a partial plan development view of a tread of thepneumatic tire 10 according to the first embodiment. As shown in FIG. 1, a linear circumferential groove 20 and a circumferential groove 30 extending in the tire circumferential direction are formed in the pneumatic tire 10.
(1)空気入りタイヤの概略構成
図1は、第1実施形態に係る空気入りタイヤ10のトレッドの一部平面展開図である。図1に示すように、空気入りタイヤ10には、タイヤ周方向に延びる直線状の周方向溝20及び周方向溝30が形成される。 [First Embodiment]
(1) Schematic Configuration of Pneumatic Tire FIG. 1 is a partial plan development view of a tread of the
空気入りタイヤ10は、降雪時の使用に耐え得るいわゆる冬用タイヤであり、自動車への装着時における回転方向が指定されるトレッドパターンを有する。ここで言う冬用タイヤとは、氷雪路での性能を重視したスタッドレスタイヤと、氷雪路及び非氷雪路での性能をバランスよく確保したオールシーズン用タイヤなどを含むタイヤのことを言う。なお、空気入りタイヤ10には、空気に代えて窒素ガスなどの不活性ガスを充填してもよい。また、図1において、細線部分は、正規内圧及び正規荷重時には、路面に接地しない領域を意味している。
The pneumatic tire 10 is a so-called winter tire that can withstand use during snowfall, and has a tread pattern in which a rotation direction is specified when mounted on an automobile. The winter tire here refers to a tire including a studless tire that places importance on performance on icy and snowy roads, and an all-season tire that ensures a balanced performance on icy and non-icey roads. The pneumatic tire 10 may be filled with an inert gas such as nitrogen gas instead of air. Moreover, in FIG. 1, the thin line part means the area | region which does not touch a road surface at the time of a regular internal pressure and a regular load.
また、周方向溝20と周方向溝30との間には、複数のブロック状陸部40が設けられる。すなわち、ブロック状陸部40は、タイヤ赤道線CLを含む領域に設けられる。ブロック状陸部40には、トレッド幅方向DTに延びるサイプ50が形成される。なお、空気入りタイヤ10には、図示しないサイプが形成されていてもよい。例えば、空気入りタイヤ10には、トレッド幅方向DTに延びるサイプと、タイヤ周方向DCに延びるサイプとが形成されてもよい。また、タイヤ赤道線CLの位置には、タイヤ周方向DCに沿って延びる直線状のサイプ(不図示)が形成されている。
In addition, a plurality of block land portions 40 are provided between the circumferential groove 20 and the circumferential groove 30. That is, the block-like land portion 40 is provided in a region including the tire equator line CL. The block land portion 40 is formed with a sipe 50 extending in the tread width direction D T. The pneumatic tire 10 may be formed with a sipe (not shown). For example, the pneumatic tire 10 has a sipe extending in the tread width direction D T, it may be formed with sipes extending in the tire circumferential direction D C is. Also, the position of the tire equator line CL are linear sipes extending along the tire circumferential direction D C (not shown) is formed.
ブロック状陸部40は、タイヤ周方向DCに対して傾斜する傾斜溝100間に設けられる。傾斜溝100は、タイヤ周方向DCにおいて複数形成される。傾斜溝100は、トレッド幅方向DTの中央部、具体的にはタイヤ赤道線CLから、トレッド幅方向DTに向けて延在するジグザグ状の溝である。なお、トレッド幅方向DTの中央部とは、日本自動車タイヤ協会(JATMA)などで規定される正規内圧に設定された空気入りタイヤ10に正規荷重が付加された状態において、タイヤ赤道線CLを含むトレッド幅の60%の領域内を意味する。
Block-shaped land portion 40 is provided between the inclined grooves 100 inclined relative to the tire circumferential direction D C. Inclined groove 100 is formed in plurality in the tire circumferential direction D C. The inclined groove 100 is a zigzag groove extending from the central portion of the tread width direction DT , specifically, from the tire equator line CL toward the tread width direction DT . The central portion of the tread width direction DT refers to the tire equator line CL in a state where a normal load is applied to the pneumatic tire 10 set to a normal internal pressure defined by the Japan Automobile Tire Association (JATMA) or the like. It means in the region of 60% of the tread width.
(2)陸部の形状
図2は、空気入りタイヤ10のトレッドの一部拡大平面図である。図2に示すように、傾斜溝100は、幅広部分100wと幅狭部分100nとを含む。具体的には、幅広部分100wと幅狭部分100nとが交互に繰り返される。 (2) Shape of Land Part FIG. 2 is a partially enlarged plan view of the tread of thepneumatic tire 10. As shown in FIG. 2, the inclined groove 100 includes a wide portion 100w and a narrow portion 100n. Specifically, the wide portions 100w and the narrow portions 100n are alternately repeated.
図2は、空気入りタイヤ10のトレッドの一部拡大平面図である。図2に示すように、傾斜溝100は、幅広部分100wと幅狭部分100nとを含む。具体的には、幅広部分100wと幅狭部分100nとが交互に繰り返される。 (2) Shape of Land Part FIG. 2 is a partially enlarged plan view of the tread of the
幅広部分100wは、タイヤ赤道線CLを含むトレッド幅方向DTの中央部からトレッド幅方向DT外側に向かって延在し、第1溝幅を有する部分である。幅狭部分100nは、第1溝幅よりも狭い第2溝幅を有する部分である。幅広部分100wと幅狭部分100nとは、トレッド幅方向DTからトレッド幅方向DT外側に向かって交互に繰り返される。
The wide portion 100w extends from the center of the tread width direction DT including the tire equator line CL toward the outside of the tread width direction DT and has a first groove width. The narrow portion 100n is a portion having a second groove width that is narrower than the first groove width. The wide portion 100w and a narrow portion 100n, are alternately repeated toward the tread widthwise direction D T outside the tread width direction D T.
実施形態において、溝幅は、傾斜溝100が延びる方向に沿った傾斜溝100の延長線L1に対して直交する方向における傾斜溝100の幅であってもよい。或いは、溝幅は、傾斜溝100が延びる方向に沿った延長線L2に対して直交する方向における傾斜溝100の幅であってもよい。
In the embodiment, the groove width may be the width of the inclined groove 100 in a direction orthogonal to the extension line L1 of the inclined groove 100 along the direction in which the inclined groove 100 extends. Alternatively, the groove width may be the width of the inclined groove 100 in a direction orthogonal to the extension line L2 along the direction in which the inclined groove 100 extends.
傾斜溝100は、タイヤ赤道線CLを基準としたトレッド幅方向DTにおける一方の領域と他方の領域とにそれぞれ形成される。傾斜溝100は、当該一方の領域と他方の領域とにおいて、概ね対称(線対称)の形状を有する。
The inclined grooves 100 are respectively formed in one region and the other region in the tread width direction DT with respect to the tire equator line CL. The inclined groove 100 has a substantially symmetric (line symmetric) shape in the one region and the other region.
傾斜溝100は、タイヤ赤道線CLを含むトレッド幅方向DTの中央部において、当該一方の領域に形成された傾斜溝100と、当該他方の領域に設けられるブロック状陸部40とが対向する。この逆に、当該他方の領域に形成された傾斜溝100と、当該一方の領域に設けられるブロック状陸部40とが対向する。つまり、当該一方の領域と当該他方に領域とでは、ブロック状陸部40及び傾斜溝100の配置位置がタイヤ周方向DCにおいてずれている。このように、タイヤ周方向DCにおいて傾斜溝100の配置位置(位相)がずれていることによって、パターンノイズを削減することができる。また、トレッド幅方向DTに沿って延びる溝壁100αが形成されることによって、タイヤ周方向DCにおけるエッジとして溝壁100αが機能し、トラクション性能が向上する。
In the inclined groove 100, the inclined groove 100 formed in the one region and the block-shaped land portion 40 provided in the other region face each other in the center portion of the tread width direction DT including the tire equator line CL. . Conversely, the inclined groove 100 formed in the other region and the block-shaped land portion 40 provided in the one region face each other. That is, in the said one region and the other in the region, the arrangement position of the block-shaped land portion 40 and the inclined groove 100 is displaced in the tire circumferential direction D C. Thus, by the arrangement position of the inclined groove 100 (phase) are shifted in the tire circumferential direction D C, it is possible to reduce the pattern noise. Also, by groove wall 100α extending along the tread width direction D T is formed, and functions groove wall 100α as edges in the tire circumferential direction D C, traction performance is improved.
また、傾斜溝100のトレッド幅方向DT外側の端部は、周方向溝20(周方向溝30)に連通する。傾斜溝100は、サイプ50以外とは交差することなく周方向溝20(周方向溝30)まで延在する。言い換えると、センター領域において交差する溝が存在しないため、トレッド幅方向DT外側に向けてスムーズに水を排出することができ、排水性能が向上する。
Further, the end of the inclined groove 100 outside the tread width direction DT communicates with the circumferential groove 20 (circumferential groove 30). The inclined groove 100 extends to the circumferential groove 20 (circumferential groove 30) without intersecting with other than the sipe 50. In other words, since there are no intersecting grooves in the center region, water can be smoothly discharged toward the outside of the tread width direction DT , and drainage performance is improved.
傾斜溝100は、四角形状の第1溝部110及び第2溝部120を有する。第2溝部120は、第1溝部110よりもトレッド幅方向DT外側において第1溝部110に連通する。本実施形態では、第1溝部110及び第2溝部120は、平行四辺形状である。第2溝部120は、第1溝部110よりもトレッド幅方向DT外側にずれることによって、幅狭部分100nを形成している。傾斜溝100は、第1溝部110及び第2溝部120のような四角形状の溝部が繰り返されることによって、トレッド幅方向DT外側まで延在する。
The inclined groove 100 includes a rectangular first groove portion 110 and a second groove portion 120. The second groove portion 120 communicates with the first groove portion 110 on the outer side in the tread width direction DT than the first groove portion 110. In the present embodiment, the first groove part 110 and the second groove part 120 have a parallelogram shape. The second groove part 120 forms a narrow part 100n by shifting to the outer side in the tread width direction DT from the first groove part 110. The inclined groove 100 extends to the outer side in the tread width direction D T by repeating rectangular groove portions such as the first groove portion 110 and the second groove portion 120.
なお、本実施形態のように、タイヤ周方向DCと傾斜溝100とが成す鋭角側の角度が60度未満の場合(傾斜溝100の溝中心を通過する直線を基準)、第2溝部120は、第1溝部110よりもトレッド幅方向外側にずれることによって、幅狭部分100nを形成することが好ましい。幅狭部分100nの形成によって、排水性を維持したまま、傾斜溝100内に雪を留めることができ、傾斜溝100内に留まる雪によって、雪上におけるせん断力が向上する。これによって、雪上におけるトラクション性能が向上する。
Incidentally, as in this embodiment, (relative to the straight line passing through the groove center of the inclined groove 100) acute side when the angle is less than 60 ° formed with the tire circumferential direction D C and the inclined groove 100, second groove 120 It is preferable to form the narrow portion 100n by shifting to the outer side in the tread width direction than the first groove portion 110. By forming the narrow portion 100n, it is possible to keep snow in the inclined groove 100 while maintaining drainage, and the snow that remains in the inclined groove 100 improves the shearing force on the snow. This improves the traction performance on snow.
[第2実施形態]
図3は、第2実施形態に係る空気入りタイヤ10Aのトレッドの一部平面展開図である。以下、上述した空気入りタイヤ10と異なる部分について主に説明する。空気入りタイヤ10と比較すると、空気入りタイヤ10Aでは、傾斜溝100Aの形状が多少異なっている。 [Second Embodiment]
FIG. 3 is a partial plan development view of the tread of thepneumatic tire 10A according to the second embodiment. Hereinafter, a different part from the pneumatic tire 10 mentioned above is mainly demonstrated. Compared to the pneumatic tire 10, the shape of the inclined groove 100A is slightly different in the pneumatic tire 10A.
図3は、第2実施形態に係る空気入りタイヤ10Aのトレッドの一部平面展開図である。以下、上述した空気入りタイヤ10と異なる部分について主に説明する。空気入りタイヤ10と比較すると、空気入りタイヤ10Aでは、傾斜溝100Aの形状が多少異なっている。 [Second Embodiment]
FIG. 3 is a partial plan development view of the tread of the
図3に示すように、傾斜溝100Aは、第1溝部110A及び第2溝部120Aを有する。第2溝部120Aは、第1溝部110Aよりもトレッド幅方向DT外側において第1溝部110Aに連通する。傾斜溝100Aは、第1溝部110A及び第2溝部120Aのような四角形状の溝部が繰り返されることによって、トレッド幅方向DT外側まで延在する。
As shown in FIG. 3, the inclined groove 100A includes a first groove part 110A and a second groove part 120A. The second groove portion 120A communicates with the first groove portion 110A on the outer side in the tread width direction DT than the first groove portion 110A. The inclined groove 100A extends to the outer side in the tread width direction DT by repeating square groove portions such as the first groove portion 110A and the second groove portion 120A.
タイヤ周方向DCと傾斜溝100Aとが成す鋭角側の角度は、上述した傾斜溝100よりも小さいが、傾斜溝100と同様に、第2溝部120Aは、第1溝部110Aよりもトレッド幅方向外側にずれることによって、幅狭部分100nを形成することが好ましい。
Acute angle side formed between the tire circumferential direction D C and the inclined groove 100A is smaller than the inclined grooves 100 described above, similarly to the inclined groove 100, second groove 120A is the tread width direction than the first groove portion 110A It is preferable to form the narrow portion 100n by shifting outward.
このように、タイヤ周方向DCにおいて傾斜溝100Aの配置位置(位相)がずれていることによって、パターンノイズを削減することができる。また、トレッド幅方向DTに沿って延びる溝壁100αが形成されることによって、タイヤ周方向DCにおけるエッジとして溝壁100αが機能し、トラクション性能が向上する。
Thus, by the arrangement position of the inclined groove 100A (phase) are shifted in the tire circumferential direction D C, it is possible to reduce the pattern noise. Also, by groove wall 100α extending along the tread width direction D T is formed, and functions groove wall 100α as edges in the tire circumferential direction D C, traction performance is improved.
また、第1実施形態と同様に、幅狭部分100nの形成によって、排水性を維持したまま、傾斜溝100内に雪を留めることができ、傾斜溝100内に留まる雪によって、雪上におけるせん断力が向上する。これによって、雪上におけるトラクション性能が向上する。
Similarly to the first embodiment, by forming the narrow portion 100n, it is possible to keep snow in the inclined groove 100 while maintaining the drainage, and the shear force on the snow by the snow remaining in the inclined groove 100 Will improve. This improves the traction performance on snow.
[第3実施形態]
図4は、第3実施形態に係る空気入りタイヤ10Bのトレッドの一部平面展開図である。以下、上述した空気入りタイヤ10と異なる部分について主に説明する。空気入りタイヤ10と比較すると、空気入りタイヤ10Bでは、傾斜溝200の形状が異なっている。 [Third Embodiment]
FIG. 4 is a partial plan view of the tread of thepneumatic tire 10B according to the third embodiment. Hereinafter, a different part from the pneumatic tire 10 mentioned above is mainly demonstrated. Compared to the pneumatic tire 10, the shape of the inclined groove 200 is different in the pneumatic tire 10B.
図4は、第3実施形態に係る空気入りタイヤ10Bのトレッドの一部平面展開図である。以下、上述した空気入りタイヤ10と異なる部分について主に説明する。空気入りタイヤ10と比較すると、空気入りタイヤ10Bでは、傾斜溝200の形状が異なっている。 [Third Embodiment]
FIG. 4 is a partial plan view of the tread of the
傾斜溝200は、四角形状の第1溝部210及び第2溝部220を有する。第2溝部220は、第1溝部210よりもトレッド幅方向DT外側において第1溝部210に連通する。傾斜溝200は、第1溝部210及び第2溝部220のような四角形状の溝部が繰り返されることによって、トレッド幅方向DT外側まで延在する。このような形状は、上述した傾斜溝100と同様である。
The inclined groove 200 includes a rectangular first groove portion 210 and a second groove portion 220. The second groove part 220 communicates with the first groove part 210 on the outer side in the tread width direction DT than the first groove part 210. The inclined groove 200 extends to the outer side in the tread width direction D T by repeating square groove portions such as the first groove portion 210 and the second groove portion 220. Such a shape is the same as the inclined groove 100 described above.
一方、第2溝部220は、傾斜溝200が延在する方向において、第1溝部210よりもタイヤ周方向DCにずれることによって、幅狭部分200nを形成する。本実施形態では、タイヤ周方向DCと傾斜溝200とが成す鋭角側の角度が30度以上であり、このような場合、第2溝部220は、傾斜溝200が延在する方向において、第1溝部210よりもタイヤ周方向DCにずれることによって、幅狭部分200nを形成することが好ましい。
On the other hand, the second groove 220 in a direction inclined groove 200 extends, by deviating the tire circumferential direction D C than the first groove 210 to form a narrow portion 200n. In the present embodiment, it is the tire circumferential direction D C and the inclined grooves 200 and the acute side of the angle formed by 30 degrees or more, this case, the second groove 220 in a direction inclined groove 200 extends, the by deviating the tire circumferential direction D C than first groove 210, it is preferable to form a narrow portion 200n.
このように、タイヤ周方向DCにおいて傾斜溝200の配置位置(位相)がずれていることによって、パターンノイズを削減することができる。また、タイヤ周方向DCに沿って延びる溝壁200αが形成されることによって、トレッド幅方向DTにおけるエッジとして溝壁200αが機能し、雪上における操縦安定性が向上する。
Thus, by the arrangement position of the inclined groove 200 (phase) are shifted in the tire circumferential direction D C, it is possible to reduce the pattern noise. Also, by groove wall 200α extending along the tire circumferential direction D C is formed, the groove wall 200α as edges in the tread width direction D T functions, steering stability in snow is improved.
また、第1実施形態と同様に、幅狭部分200nの形成によって、排水性を維持したまま、傾斜溝200内に雪を留めることができ、傾斜溝200内に留まる雪によって、雪上におけるせん断力が向上する。これによって、雪上におけるトラクション性能が向上する。
Similarly to the first embodiment, by forming the narrow portion 200n, it is possible to keep snow in the inclined groove 200 while maintaining drainage, and the snow that remains in the inclined groove 200 causes a shearing force on the snow. Will improve. This improves the traction performance on snow.
[作用・効果]
上述した空気入りタイヤ10,10A,10Bによれば、傾斜溝(例えば、傾斜溝100)は、タイヤ赤道線CLを含むトレッド幅方向DTの中央部からトレッド幅方向DT外側に向かって延在する。また、傾斜溝の幅広部分と幅狭部分とは、トレッド幅方向DTの中央部からトレッド幅方向DT外側に向かって交互に繰り返される。 [Action / Effect]
According to the pneumatic tires 10, 10A, and 10B described above, the inclined groove (for example, the inclined groove 100) extends from the center portion of the tread width direction DT including the tire equator line CL toward the outside of the tread width direction DT. Exists. Moreover, the wide portion and the narrow portion of the inclined groove, are alternately repeated toward the center portion of the tread width direction D T in the tread width direction D T outside.
上述した空気入りタイヤ10,10A,10Bによれば、傾斜溝(例えば、傾斜溝100)は、タイヤ赤道線CLを含むトレッド幅方向DTの中央部からトレッド幅方向DT外側に向かって延在する。また、傾斜溝の幅広部分と幅狭部分とは、トレッド幅方向DTの中央部からトレッド幅方向DT外側に向かって交互に繰り返される。 [Action / Effect]
According to the
このため、傾斜溝に入り込んだ雪は、逃げ場を規制されるため、結果的に雪柱せん断力が増大する。したがって、氷雪路におけるトラクションや制動力が向上する。また、例えば、傾斜溝100は、トレッド幅方向DT外側に向かって延在するとともに、周方向溝20,30に連通するため、傾斜溝100に入り込んだ雨水を効率的に排水できる。
For this reason, since the snow which entered into the inclined groove is restricted from escape, the snow column shear force increases as a result. Therefore, the traction and braking force on an icy and snowy road are improved. Further, for example, the inclined groove 100 extends toward the outer side of the tread width direction DT and communicates with the circumferential grooves 20 and 30, so that rainwater that has entered the inclined groove 100 can be efficiently drained.
すなわち、空気入りタイヤ10,10A,10Bによれば、湿潤路及び氷雪路での性能を高い次元で両立し得る。
That is, according to the pneumatic tires 10, 10A, 10B, the performance on wet roads and icy and snowy roads can be achieved at a high level.
また、例えば、第1実施形態では、タイヤ赤道線CLを基準とした一方の領域と他方に領域とでは、ブロック状陸部40及び傾斜溝100の配置位置がタイヤ周方向DCにおいてずれている。このため、入り込んだ雪は、さらに逃げ場を規制されるため、氷雪路におけるトラクションや制動力の更なる向上に寄与し得る。
Further, for example, in the first embodiment, in the one region and the other in the region relative to the tire equator line CL, the arrangement position of the block-shaped land portion 40 and the inclined groove 100 is displaced in the tire circumferential direction D C . For this reason, since the entering snow is further restricted in the escape place, it can contribute to further improvement of the traction and braking force on the icy and snowy road.
また、例えば、第1実施形態では、第2溝部120は、第1溝部110よりもトレッド幅方向DT外側にずれることによって、幅狭部分100nを形成している。さらに、第3実施形態では、第2溝部220は、傾斜溝200が延在する方向において、第1溝部210よりもタイヤ周方向DCにずれることによって、幅狭部分200nを形成する。
Further, for example, in the first embodiment, the second groove portion 120 forms a narrow portion 100n by shifting to the outer side in the tread width direction DT than the first groove portion 110. Furthermore, in the third embodiment, the second groove 220 in a direction inclined groove 200 extends, by deviating the tire circumferential direction D C than the first groove 210 to form a narrow portion 200n.
このため、傾斜溝のエッジ成分が増大することによって氷雪路でのトラクションや制動力、さらにはハンドリング性能向上に寄与し得る。
For this reason, an increase in the edge component of the inclined groove can contribute to improvement of traction and braking force on an icy and snowy road, and handling performance.
[その他の実施形態]
上述したように、本発明の実施形態を通じて本発明の内容を開示したが、この開示の一部をなす論述及び図面は、本発明を限定するものであると理解すべきではない。この開示から当業者には様々な代替実施の形態、実施例及び運用技術が明らかとなる。 [Other Embodiments]
Although the contents of the present invention have been disclosed through the embodiments of the present invention as described above, it should not be understood that the descriptions and drawings constituting a part of this disclosure limit the present invention. From this disclosure, various alternative embodiments, examples, and operational techniques will be apparent to those skilled in the art.
上述したように、本発明の実施形態を通じて本発明の内容を開示したが、この開示の一部をなす論述及び図面は、本発明を限定するものであると理解すべきではない。この開示から当業者には様々な代替実施の形態、実施例及び運用技術が明らかとなる。 [Other Embodiments]
Although the contents of the present invention have been disclosed through the embodiments of the present invention as described above, it should not be understood that the descriptions and drawings constituting a part of this disclosure limit the present invention. From this disclosure, various alternative embodiments, examples, and operational techniques will be apparent to those skilled in the art.
例えば、上述した第1実施形態では、第1溝部110及び第2溝部120は、四角形状であったが、第1溝部110及び第2溝部120は、四角形状に限定されず、例えば、楕円状でもよい。
For example, in the first embodiment described above, the first groove portion 110 and the second groove portion 120 have a quadrangular shape. However, the first groove portion 110 and the second groove portion 120 are not limited to a quadrangular shape, for example, an elliptical shape. But you can.
第1実施形態では、タイヤ赤道線CLを基準とした一方の領域と他方に領域とでは、ブロック状陸部40及び傾斜溝100の配置位置がタイヤ周方向DCにおいてずれていたが、このような配置は、必ずしも必須ではなく、ブロック状陸部40及び傾斜溝100の配置位置は、タイヤ周方向DCにおいて一致していてもよい。
In the first embodiment, in the one region and the other in the region relative to the tire equator line CL, but the arrangement position of the block-shaped land portion 40 and the inclined groove 100 is deviated in the tire circumferential direction D C, such Do arrangement is not necessarily essential, the arrangement position of the block-shaped land portion 40 and the inclined groove 100 may be coincident in the tire circumferential direction D C.
上述した実施形態では、トレッド幅方向DTの中央部とは、JATMAなどで規定される正規内圧に設定された空気入りタイヤ10に正規荷重が付加された状態において、タイヤ赤道線CLを含むトレッド幅の60%の領域内を意味するものとしたが、キャンバー角が大きい自動車への装着を前提した空気入りタイヤの場合などには、正規内圧に設定された空気入りタイヤに正規荷重が付加された状態におけるトレッド幅方向の中心を基準としたトレッドの「接地幅」の60%の領域内を意味するものとしてもよい。
In the embodiment described above, the central portion in the tread width direction DT is a tread including the tire equator line CL in a state where a normal load is applied to the pneumatic tire 10 set to a normal internal pressure defined by JATMA or the like. In the case of a pneumatic tire that is assumed to be mounted on a car with a large camber angle, a normal load is applied to the pneumatic tire set to the normal internal pressure. It may also mean a region of 60% of the “contact width” of the tread with respect to the center in the tread width direction.
このように、本発明は、ここでは記載していない様々な実施の形態などを含むことは勿論である。したがって、本発明の技術的範囲は、上述の説明から妥当な請求の範囲に係る発明特定事項によってのみ定められる。
Thus, it goes without saying that the present invention includes various embodiments that are not described herein. Therefore, the technical scope of the present invention is determined only by the invention specifying matters according to the scope of claims reasonable from the above description.
なお、日本国特許出願第2011-163360号(2011年7月26日出願)の全内容が、参照により、本願明細書に組み込まれている。
Note that the entire contents of Japanese Patent Application No. 2011-163360 (filed on July 26, 2011) are incorporated herein by reference.
本発明の特徴によれば、湿潤路及び氷雪路での性能をより高い次元で両立し得るタイヤを提供することができる。
According to the characteristics of the present invention, it is possible to provide a tire that can achieve higher performance on wet roads and icy and snowy roads.
Claims (7)
- タイヤ周方向に対して傾斜する傾斜溝がタイヤ周方向において複数形成され、前記傾斜溝間に設けられるブロック状陸部にはトレッド幅方向に延びるサイプが形成されたタイヤであって、
前記傾斜溝は、
タイヤ赤道線を含むトレッド幅方向の中央部からトレッド幅方向外側に向かって延在し、
第1溝幅を有する幅広部分と、前記第1溝幅よりも狭い第2溝幅を有する幅狭部分とを含み、
前記幅広部分と前記幅狭部分とは、前記中央部からトレッド幅方向外側に向かって交互に繰り返されるタイヤ。 A tire in which a plurality of inclined grooves inclined with respect to the tire circumferential direction are formed in the tire circumferential direction, and a sipe extending in the tread width direction is formed in the block-shaped land portion provided between the inclined grooves,
The inclined groove is
Extending from the center of the tread width direction including the tire equator line toward the outside of the tread width direction,
A wide portion having a first groove width and a narrow portion having a second groove width narrower than the first groove width;
The tire in which the wide portion and the narrow portion are alternately repeated from the central portion toward the outside in the tread width direction. - 前記傾斜溝は、タイヤ赤道線を基準としたトレッド幅方向における一方の領域と他方の領域とに形成され、
タイヤ赤道線を含む前記中央部において、前記一方の領域に形成された前記傾斜溝と、前記他方の領域に設けられる前記ブロック状陸部とが対向するとともに、前記他方の領域に形成された前記傾斜溝と、前記一方の領域に設けられる前記ブロック状陸部とが対向する請求項1に記載のタイヤ。 The inclined groove is formed in one region and the other region in the tread width direction with respect to the tire equator line,
In the central portion including the tire equator line, the inclined groove formed in the one region and the block land portion provided in the other region face each other, and the formed in the other region. The tire according to claim 1, wherein the inclined groove and the block land portion provided in the one region face each other. - タイヤ周方向に延びる直線状の周方向溝が形成され、
前記傾斜溝のトレッド幅方向外側の端部は、前記周方向溝に連通する請求項1または2に記載のタイヤ。 A linear circumferential groove extending in the tire circumferential direction is formed,
The tire according to claim 1 or 2, wherein an end of the inclined groove on the outer side in the tread width direction communicates with the circumferential groove. - 前記傾斜溝は、
四角形状の第1溝部と、
前記第1溝部よりもトレッド幅方向外側において前記第1溝部に連通する四角形状の第2溝部と
を有し、
前記第2溝部は、前記第1溝部よりもトレッド幅方向外側にずれることによって、前記幅狭部分を形成する請求項1乃至3の何れか一項に記載のタイヤ。 The inclined groove is
A rectangular first groove,
A quadrangular second groove portion communicating with the first groove portion on the outer side in the tread width direction than the first groove portion;
The tire according to any one of claims 1 to 3, wherein the second groove portion forms the narrow portion by being displaced outward in the tread width direction from the first groove portion. - 前記傾斜溝は、
四角形状の第1溝部と、
前記第1溝部よりもトレッド幅方向外側において前記第1溝部に連通する四角形状の第2溝部と
を有し、
前記第2溝部は、前記傾斜溝が延在する方向において、前記第1溝部よりもタイヤ周方向にずれることによって、前記幅狭部分を形成する請求項1乃至3の何れか一項に記載のタイヤ。 The inclined groove is
A rectangular first groove,
A quadrangular second groove portion communicating with the first groove portion on the outer side in the tread width direction than the first groove portion;
The said 2nd groove part forms the said narrow part by shifting | deviating to a tire circumferential direction rather than the said 1st groove part in the direction where the said inclination groove | channel extends, The Claim 1 thru | or 3 characterized by the above-mentioned. tire. - タイヤ周方向と前記傾斜溝とが成す鋭角側の角度が60度未満の場合、前記第2溝部は、前記第1溝部よりもトレッド幅方向外側にずれることによって、前記幅狭部分を形成する請求項4に記載のタイヤ。 When the angle on the acute angle side formed by the tire circumferential direction and the inclined groove is less than 60 degrees, the second groove portion is displaced outward in the tread width direction from the first groove portion, thereby forming the narrow portion. Item 5. The tire according to Item 4.
- タイヤ周方向と前記傾斜溝とが成す鋭角側の角度が30度以上の場合、前記第2溝部は、前記傾斜溝が延在する方向において、前記第1溝部よりもタイヤ周方向にずれることによって、前記幅狭部分を形成する請求項5に記載のタイヤ。 When the acute angle formed by the tire circumferential direction and the inclined groove is 30 degrees or more, the second groove portion is displaced in the tire circumferential direction from the first groove portion in the direction in which the inclined groove extends. The tire according to claim 5, wherein the narrow portion is formed.
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JP2011-163360 | 2011-07-26 | ||
JP2011163360 | 2011-07-26 |
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ID=47601212
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PCT/JP2012/069007 WO2013015375A1 (en) | 2011-07-26 | 2012-07-26 | Tire |
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Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
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JP2015229395A (en) * | 2014-06-04 | 2015-12-21 | 株式会社ブリヂストン | Heavy-duty pneumatic tire |
JP2018127220A (en) * | 2018-04-16 | 2018-08-16 | 横浜ゴム株式会社 | Pneumatic tire |
EP3711981A1 (en) * | 2019-03-20 | 2020-09-23 | Sumitomo Rubber Industries, Ltd. | Tyre |
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JP2001001721A (en) * | 1999-06-23 | 2001-01-09 | Yokohama Rubber Co Ltd:The | Pneumatic tire |
JP2004533951A (en) * | 2001-02-28 | 2004-11-11 | ピレリ・プネウマティチ・ソチエタ・ペル・アツィオーニ | Automotive tires with wide tread, especially for snow-covered ground |
JP2008201319A (en) * | 2007-02-21 | 2008-09-04 | Sumitomo Rubber Ind Ltd | Studless tire |
-
2012
- 2012-07-26 WO PCT/JP2012/069007 patent/WO2013015375A1/en active Application Filing
- 2012-07-26 JP JP2013525761A patent/JPWO2013015375A1/en active Pending
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
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JP2001001721A (en) * | 1999-06-23 | 2001-01-09 | Yokohama Rubber Co Ltd:The | Pneumatic tire |
JP2004533951A (en) * | 2001-02-28 | 2004-11-11 | ピレリ・プネウマティチ・ソチエタ・ペル・アツィオーニ | Automotive tires with wide tread, especially for snow-covered ground |
JP2008201319A (en) * | 2007-02-21 | 2008-09-04 | Sumitomo Rubber Ind Ltd | Studless tire |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2015229395A (en) * | 2014-06-04 | 2015-12-21 | 株式会社ブリヂストン | Heavy-duty pneumatic tire |
JP2018127220A (en) * | 2018-04-16 | 2018-08-16 | 横浜ゴム株式会社 | Pneumatic tire |
EP3711981A1 (en) * | 2019-03-20 | 2020-09-23 | Sumitomo Rubber Industries, Ltd. | Tyre |
JP2020152270A (en) * | 2019-03-20 | 2020-09-24 | 住友ゴム工業株式会社 | tire |
CN111716964A (en) * | 2019-03-20 | 2020-09-29 | 住友橡胶工业株式会社 | Tyre for vehicle wheels |
US11420480B2 (en) | 2019-03-20 | 2022-08-23 | Sumitomo Rubber Industries, Ltd. | Tyre |
JP7268431B2 (en) | 2019-03-20 | 2023-05-08 | 住友ゴム工業株式会社 | tire |
CN111716964B (en) * | 2019-03-20 | 2023-11-14 | 住友橡胶工业株式会社 | Tire with a tire body |
JP7405295B2 (en) | 2019-03-20 | 2023-12-26 | 住友ゴム工業株式会社 | tire |
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