WO2010058857A1 - Bandage pneumatique pour roue de véhicule - Google Patents
Bandage pneumatique pour roue de véhicule Download PDFInfo
- Publication number
- WO2010058857A1 WO2010058857A1 PCT/JP2009/069813 JP2009069813W WO2010058857A1 WO 2010058857 A1 WO2010058857 A1 WO 2010058857A1 JP 2009069813 W JP2009069813 W JP 2009069813W WO 2010058857 A1 WO2010058857 A1 WO 2010058857A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- pneumatic tire
- rib
- tire
- width
- shoulder rib
- Prior art date
Links
- 229920001971 elastomer Polymers 0.000 claims description 51
- 241000218691 Cupressaceae Species 0.000 claims description 3
- 239000000463 material Substances 0.000 description 22
- 238000004898 kneading Methods 0.000 description 14
- 238000011056 performance test Methods 0.000 description 13
- 238000000034 method Methods 0.000 description 10
- 239000006229 carbon black Substances 0.000 description 8
- 230000020169 heat generation Effects 0.000 description 8
- 239000000126 substance Substances 0.000 description 6
- 238000013329 compounding Methods 0.000 description 5
- 238000005096 rolling process Methods 0.000 description 4
- 238000012360 testing method Methods 0.000 description 4
- 244000043261 Hevea brasiliensis Species 0.000 description 3
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 3
- 238000011156 evaluation Methods 0.000 description 3
- 229920003052 natural elastomer Polymers 0.000 description 3
- 229920001194 natural rubber Polymers 0.000 description 3
- 229910052717 sulfur Inorganic materials 0.000 description 3
- 239000011593 sulfur Substances 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 206010037660 Pyrexia Diseases 0.000 description 2
- 235000021355 Stearic acid Nutrition 0.000 description 2
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 description 2
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 description 2
- 238000007670 refining Methods 0.000 description 2
- 238000010008 shearing Methods 0.000 description 2
- 239000008117 stearic acid Substances 0.000 description 2
- 101100434170 Oryza sativa subsp. japonica ACR2.1 gene Proteins 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- 230000003712 anti-aging effect Effects 0.000 description 1
- 239000000427 antigen Substances 0.000 description 1
- 102000036639 antigens Human genes 0.000 description 1
- 108091007433 antigens Proteins 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 229930195729 fatty acid Natural products 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 238000004073 vulcanization Methods 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
- 239000011787 zinc oxide Substances 0.000 description 1
Images
Classifications
-
- 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
-
- 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
- B60C11/0083—Tyre tread bands; Tread patterns; Anti-skid inserts characterised by the curvature of the tyre tread
-
- 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
- B60C11/04—Tread patterns in which the raised area of the pattern consists only of continuous circumferential ribs, e.g. zig-zag
-
- 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
- B60C2011/0353—Circumferential grooves characterised by width
-
- 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
- B60C2011/0386—Continuous ribs
- B60C2011/0388—Continuous ribs provided at the equatorial plane
-
- 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
- B60C2011/0386—Continuous ribs
- B60C2011/039—Continuous ribs provided at the shoulder portion
-
- 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
- B60C2200/00—Tyres specially adapted for particular applications
- B60C2200/06—Tyres specially adapted for particular applications for heavy duty vehicles
Definitions
- the present invention relates to a pneumatic tire, and more particularly to a pneumatic tire capable of improving the uneven wear resistance performance of the tire.
- An object of the present invention is to provide a pneumatic tire capable of improving the uneven wear resistance performance of the tire.
- a pneumatic tire according to the present invention has a plurality of circumferential main grooves extending in the tire circumferential direction and a plurality of ribs defined by the circumferential main grooves in a tread portion.
- the pneumatic tire has a smooth curve in which a ground contact surface of the rib in the center region of the tread (hereinafter referred to as a center rib) is convex outward in the tire radial direction in a sectional view in the tire meridian direction.
- the contact surface of the rib in the shoulder region of the tread (hereinafter referred to as a shoulder rib) is a smooth curve that protrudes inward in the tire radial direction, and the curve of the center rib and the curve of the shoulder rib When taking the intersection point P, as the distance between the extension line of the center rib curve and the curve of the shoulder rib increases from the intersection point P toward the outer side in the tire width direction. Characterized in that it pressure.
- the ground pressure on the grounding end side of the shoulder rib is increased by optimizing the radius configuration of the tread portion.
- the total groove width GW of the circumferential main grooves and the tread width TW have a relationship of 0.15 ⁇ GW / TW ⁇ 0.20.
- the pneumatic tire according to the present invention has the four circumferential main grooves, and the distance PW from the tire equatorial plane to the intersection P and the tread width TW are 0.5 ⁇ PW / (TW / 2) It has a relationship of ⁇ 0.65.
- This pneumatic tire has an advantage that the uneven wear resistance of the tire is improved because the position of the inflection point (intersection point P) of the tread radius is optimized.
- the intersection point P is preferably located in the circumferential main groove.
- a narrow groove extending in the tire circumferential direction is disposed in the vicinity of the ground contact end of the shoulder rib.
- the center portion of the shoulder rib has a cypress structure.
- the pneumatic tire according to the present invention includes a tread width TW, a total groove width GW of the circumferential main grooves, a width TWc of the center rib, and a width of the rib between the center rib and the shoulder rib.
- TWx and the width TWsh of the shoulder rib are TWsh / (TW / 2) ⁇ 0.40, TWsh / TWx ⁇ 1.05, TWsh / TWc ⁇ 1.05, and 0.20 ⁇ GW / TW ⁇ 0.15. Have a relationship.
- the ratio of the groove area of the circumferential main groove in the tread portion is set to be smaller than a predetermined value, and the ratio of the contact width of the shoulder rib to which the most shearing force is applied during lateral force traveling is smaller than the predetermined value. It is set large. Then, since the lateral elastic modulus of the entire tread portion increases, the slip angle at the time of market running lateral force becomes small. Thereby, since the slip amount in the tread portion shoulder region is reduced, there is an advantage that the uneven wear resistance performance against lateral force slip is improved.
- the groove depth GDsh and the width TWsh of the circumferential main groove defining the shoulder rib have a relationship of TWsh / GDsh ⁇ 2.00.
- the shoulder rib has a rubber hardness JIS-K6253 of 60 or more.
- the shoulder rib has a narrow groove.
- pneumatic tire according to the present invention is applied to a heavy duty pneumatic tire.
- the rubber composition used for the cap tread has a rubber hardness JIS-K6253 of 66 or more at 20 [° C.].
- the rubber composition has a breaking elongation of 400 [%] or more and a tan ⁇ value of less than 0.14 at a strain of 10 ⁇ 2 [%] and 60 [° C.]. Have.
- This pneumatic tire has the advantage that the wear resistance and uneven wear resistance of the tire are improved by optimizing the elongation at break and heat generation characteristics of the rubber composition.
- the ground pressure on the grounding end side of the shoulder rib is increased by optimizing the radius configuration of the tread portion.
- FIG. 1 is a sectional view in the tire meridian direction showing a tread portion of a pneumatic tire according to an embodiment of the present invention.
- FIG. 2 is a sectional view in the tire meridian direction showing a tread portion of a pneumatic tire according to an embodiment of the present invention.
- FIG. 3 is a chart showing the results of the performance test 1 of the pneumatic tire according to the example of the present invention.
- FIG. 4 is a chart showing the results of the performance test 2 of the pneumatic tire according to the example of the present invention.
- FIG. 1 and 2 are sectional views in the tire meridian direction showing a tread portion of a pneumatic tire according to an embodiment of the present invention.
- FIG. 3 is a chart showing the results of the performance test 1 of the pneumatic tire according to the example of the present invention.
- the pneumatic tire 1 includes a plurality of circumferential main grooves 21 and 22 extending in the tire circumferential direction and a plurality of ribs 31 to 33 defined by the circumferential main grooves 21 and 22 (see FIG. 1 and FIG. 2).
- the circumferential main grooves 21 and 22 define three center ribs 31 and 32 in the tread center region, and shoulder ribs 33 in the left and right tread shoulder regions. . Thereby, the tread pattern based on the rib is formed.
- the ground contact surfaces of the center ribs 31 and 32 have a smooth curve Rc that protrudes outward in the tire radial direction, and the contact surfaces of the shoulder ribs 33 protrude inward in the tire radial direction. (See FIG. 1).
- an intersection P between the curve Rc of the center ribs 31 and 32 and the curve Rs of the shoulder rib 33 is taken.
- the distance (interval) d between the extension line of the curve Rc of the center ribs 31 and 32 and the curve Rs of the shoulder rib 33 increases from the intersection P toward the outer side in the tire width direction (on the ground contact end side).
- three center ribs 31 and 32 are formed in the center region of the tread portion in a cross-sectional view in the tire meridian direction, and the ground contact surfaces of these center ribs 31 and 32 protrude outward in the tire radial direction.
- Arc-shaped curve Rc (see FIG. 1).
- the ground contact surfaces of the left and right shoulder ribs 33 have an arcuate curve Rs that protrudes inward in the tire radial direction. That is, the shoulder rib 33 has a concave grounding surface.
- the curve Rc of the center ribs 31 and 32 and the curve Rs of the shoulder rib 33 intersect at the edge portion on the inner side in the tire width direction of the shoulder rib 33, and this intersection P becomes an inflection point of the tread radius.
- the extension line of the curve Rc of the center ribs 31 and 32 is located on the inner side in the tire radial direction with respect to the curve Rs of the shoulder rib 33, and the distance d of these curves Rc and Rs is the tire width direction of the shoulder rib 33. It gradually expands from the inside toward the outside.
- the extension line of the curve Rc of the center ribs 31 and 32 intersects the side surface of the shoulder rib 33 on the outer side in the tire width direction.
- the tire ground contact surface is attached to the applicable rim specified by JATMA and given an internal pressure of 100 [kPa] and is placed perpendicular to the flat plate in a stationary state to handle the specified load.
- the ground contact surfaces of the center ribs 31 and 32 are formed of a smooth curve Rc that protrudes outward in the tire radial direction, and the smooth curve Rs that the contact surface of the shoulder rib 33 protrudes inward in the tire radial direction.
- the distance between the extended line of the curve Rc of the center ribs 31 and 32 and the curve Rs of the shoulder rib 33 increases from the intersection P toward the outer side in the tire width direction.
- the ground pressure on the grounding end side of the shoulder rib 33 is increased by optimizing the radius configuration of the tread portion.
- the ratio GW / TW of the total groove width GW of the tread portion and the tread width TW is optimized, the rigidity of the shoulder region of the tread portion is increased. Tread rubber fluctuation is suppressed. Thereby, there exists an advantage which the uneven wear-proof performance of a tire improves.
- the tread width of the tire is measured with the tire attached to the applicable rim and applied with a specified internal pressure, and placed in a stationary state perpendicular to the flat plate and applied with a load corresponding to the specified load. Is done.
- the applicable rim is an “applied rim” defined in JATMA, a “Design Rim” defined in TRA, or a “Measuring” defined in ETRTO. Rim ".
- the regular internal pressure is the “maximum air pressure” specified by JATMA, and “TIRE LOAD LIMITS AT VARIOUS COLD” specified by TRA.
- the specified load is “maximum load capacity” specified by JATMA and “TIRE” specified by TRA.
- the specified internal pressure is an air pressure of 180 [kPa]
- the specified load is 88 [%] of the maximum load capacity.
- the distance PW from the tire equatorial plane CL to the intersection P and the tread width TW are 0.5 ⁇ PW / (TW / 2) It is preferable to have a relationship of ⁇ 0.65 (see FIG. 1). In such a configuration, since the position of the inflection point (intersection point P) of the tread radius is optimized, there is an advantage that the uneven wear resistance performance of the tire is improved.
- the intersection point P is preferably located in the circumferential main groove 22.
- a narrow groove (not shown) extending in the tire circumferential direction is disposed near the ground contact end of the shoulder rib 33.
- the narrow groove means a groove having a groove width of 1 [mm] to 2 [mm].
- the center part of the shoulder rib 33 has a cypress structure (not shown). That is, it is preferable that a sipe is not formed in the center portion (portion excluding the edge portion) of the shoulder rib 33. In such a configuration, since the center portion of the shoulder rib 33 is not divided by the sipe, the rigidity of the shoulder rib 33 is ensured. Thereby, there exists an advantage which the uneven wear-proof performance of a tire improves.
- the sipe means a sipe depth of 5 [mm] or more and a sipe width of 1 [mm] or more and 2 [mm] or less. Further, sipes may be arranged at the edge portions of the shoulder ribs 33.
- the width TWsh of the shoulder rib 33 is the width of the region excluding the stepped portion of the shoulder rib 33. Further, the groove widths W1 to W4 of the circumferential main grooves 21 and 22 and the widths TWc, TWx and TWsh of the ribs 31 to 33 are applied to the rim by the tire mounted on the applicable rim and applied to the flat plate in a stationary state. It is measured in a state where it is placed vertically with respect to the specified load.
- the ratio of the groove area of the circumferential main grooves 21 and 22 in the tread portion is set to be smaller than a predetermined value, and the ratio of the contact width of the shoulder rib 33 to which the most shearing force is applied during lateral force traveling is a predetermined value. Is set larger than. Then, since the lateral elastic modulus of the entire tread portion increases, the slip angle at the time of market running lateral force becomes small. Thereby, since the slip amount in the tread portion shoulder region is reduced, there is an advantage that the uneven wear resistance performance against lateral force slip is improved.
- the groove depth GDsh and the width TWsh of the circumferential main groove 22 defining the shoulder rib 33 have a relationship of TWsh / GDsh ⁇ 2.00 (see FIGS. 1 and 2).
- the ratio TWsh / GDsh of the groove depth GDsh and the width TWsh of the circumferential main groove 22 that defines the shoulder rib 33 is optimized, the lateral elastic modulus of the shoulder rib 33 increases, and the entire tread portion The transverse elastic modulus increases. Then, the slip angle at the time of market running lateral force becomes small, and the slip amount in the tread portion shoulder region is reduced. Thereby, there exists an advantage which the uneven wear-proof performance with respect to side force slip improves.
- the shoulder rib 33 preferably has a rubber hardness JIS-K6253 of 60 or more.
- the rubber hardness of the shoulder rib 33 is optimized, the lateral elastic modulus of the shoulder rib 33 is increased, and the lateral elastic modulus of the entire tread portion is increased. Then, the slip angle at the time of market running lateral force becomes small, and the slip amount in the tread portion shoulder region is reduced. Thereby, there exists an advantage which the uneven wear-proof performance with respect to side force slip improves.
- the shoulder rib 33 preferably has a narrow groove (not shown).
- the narrow groove is disposed along the outer edge of the shoulder rib 33 in the tire width direction, and forms a wear sacrifice rib on the edge of the shoulder rib 33.
- the wear sacrificial ribs are positively worn during tire rolling, so that uneven wear of the shoulder ribs 33 is suppressed. Thereby, there exists an advantage which the uneven wear-proof performance of a tire improves.
- the pneumatic tire 1 is preferably a heavy duty pneumatic tire.
- a heavy duty pneumatic tire since a high load is applied, uneven wear of the tire is likely to occur. Therefore, there is an advantage that the uneven wear resistance performance of the tire can be obtained more remarkably by making the heavy load pneumatic tire applicable.
- the contact surface in the center region of the tread portion and the contact surface in the shoulder region of the tread portion are formed by a single arc, and the curve is convex outward (upward) in the tire radial direction. It has a shape.
- the ground contact surfaces of the center ribs 31 and 32 are formed of a smooth curve Rc that protrudes outward in the tire radial direction, and the ground contact surfaces of the shoulder ribs 33 are inward in the tire radial direction.
- the distance d between the curved line Rs of the center ribs 31 and 32 and the curved line Rs of the shoulder rib 33 increases from the intersection P toward the outer side in the tire width direction. (See FIG. 1).
- the uneven wear resistance performance of the tire is improved (see FIG. 3).
- the shoulder rib rubber hardness JIS-K6253 is 60.
- the uneven wear resistance performance of the tire is further improved by optimizing the ratio GW / TW of the total groove width GW of the tread portion and the tread width TW.
- the position PW / (TW / 2) of the inflection point (intersection point P) of the tread radius is optimized, so that the uneven wear resistance performance of the tire is further improved. I understand.
- FIG. 4 is a chart showing the results of the performance test 2 of the pneumatic tire according to the example of the present invention.
- the ground contact surfaces of the center ribs 31 and 32 are formed of a smooth curve Rc that protrudes outward in the tire radial direction, and the contact surfaces of the shoulder ribs 33 protrude inward in the tire radial direction.
- the distance between the extended line of the curve Rc of the center ribs 31 and 32 and the curve Rs of the shoulder rib 33 increases from the intersection point P toward the outer side in the tire width direction (FIG. 1). Therefore, the pneumatic tires 1 of the inventive examples 10 to 16 have a common shape and structure.
- the existing mixing method is adopted. Specifically, the mixing method of the rubber composition is to produce a kneaded material by kneading a measured rubber material and a compounded chemical in a closed kneading machine, and the kneaded material is set to a target of about 160 [° C.]. Release at the release temperature. Next, this kneaded material is again put into the closed kneader and discharged at a target discharge temperature of about 160 [° C.]. Repeat this process until the target viscosity is reached. After the kneading is completed, the kneaded material and the vulcanized compounding chemical are kneaded with a closed kneader for a fixed kneading time.
- the mixing method of the rubber composition is that the measured rubber material and compounded chemical are kneaded in a closed kneader to produce a kneaded material, and the kneaded material is 135 ° C.
- the measured rubber material and compounded chemical are put into a closed kneader and kneaded for a certain period of time, and the kneaded material is released at a release temperature of 135 [° C.] or less (illustrated). (Omitted).
- the kneaded material is supplied to a refining system line formed by connecting a plurality of refining devices in series. In this re-rolling system line, the kneaded material is repeatedly kneaded by each re-rolling device and sequentially conveyed toward the downstream side.
- the cooling means is used to control (kneading control) so that the viscosity of the kneaded material becomes the target viscosity while corresponding to a constant kneading time by the closed kneader.
- the kneaded material is supplied to the final kneading apparatus by the intermediate conveyance conveyor.
- the kneaded material and the vulcanized compounding chemical are kneaded for a time corresponding to a fixed kneading time in the closed kneader, and the kneading operation up to the final product is continuously performed.
- Such a mixing method of the rubber composition is described in detail in JP-A-2006-116726, and is well known.
- the rubber composition includes natural rubber (natural rubber STR20 manufactured by Thailand) and carbon black 1 (show black N110 manufactured by Cabot Japan Co., Ltd.).
- the compounding ratio and mixing method of the rubber composition are common.
- the wear resistance performance is 100 (same as Invention Example 10 in FIG. 4).
- the rubber composition used for the cap tread has a rubber hardness JIS-K6253 of 20 or more at 20 [° C.] (Invention Example 11, FIG. 4).
- the upper limit of the rubber hardness of the rubber composition is not particularly limited, but is preferably set as an upper limit of 76 or less, for example.
- the rubber composition preferably has a breaking elongation of 400 [%] or more and a tan ⁇ value of less than 0.14 at a strain of 10 ⁇ 2 [%] and 60 [° C.] ( (See Invention Example 15 and Invention Example 16 in FIG. 4).
- the upper limit of the elongation at break of the rubber composition is not particularly limited, but is preferably set as an upper limit of 700 or less, for example.
- the lower limit of the tan ⁇ value is not particularly limited, but it is preferably set, for example, as a lower limit of 0.03 or less.
- the rubber composition kneads the measured rubber material and compounded chemical in a closed kneader to produce a kneaded material, and the kneaded material is brought to a release temperature of 135 [° C.] or less. 4 and a step of kneading the released kneaded material at 90 [° C.] or less with at least one roll kneader (invention example of FIG. 4). 15 and Invention Example 16).
- mixing material is 120 [degreeC] or more, and it is preferable that the minimum of the kneading
- the pneumatic tire according to the present invention is useful in that the uneven wear resistance performance of the tire can be improved.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Tires In General (AREA)
Abstract
L'invention concerne un bandage pneumatique (1) pour roue de véhicule sur la bande de roulement duquel sont formées des rainures périphériques principales (21, 22) qui s'étendent dans le sens de la circonférence du bandage de roue et également des nervures (31-33) divisées par les rainures périphériques principales (21, 22). Dans une section transversale du bandage pneumatique pour roue de véhicule prise dans la direction méridienne du bandage de roue, les surfaces des nervures centrales (31, 32) en contact avec le sol sont formées par une ligne (Rc) légèrement incurvée convexe vers l'extérieur dans le sens du rayon du bandage de roue, et la surface de contact avec le sol de chaque nervure d'épaulement (33) est formée par une ligne légèrement incurvée (Rs) convexe vers l'intérieur dans le sens du rayon du bandage de roue. La ligne incurvée (Rc) des nervures centrales (31, 32) et la ligne incurvée (Rs) de la nervure d'épaulement (33) se coupent en un point d'intersection (P). La distance (d) entre une ligne qui part de la ligne incurvée (Rc) des nervures centrales (31, 32) et la ligne incurvée (Rs) de la nervure d'épaulement (33) augmente vers l'extérieur dans le sens de la largeur du bandage de roue à partir du point d'intersection (P).
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE112009003641.4T DE112009003641B4 (de) | 2008-11-21 | 2009-11-24 | Luftreifen |
CN2009801463718A CN102224022A (zh) | 2008-11-21 | 2009-11-24 | 充气轮胎 |
US13/111,911 US9352618B2 (en) | 2008-11-21 | 2011-05-19 | Pneumatic tire with tread having five ribs and four circumferential grooves |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2008298516 | 2008-11-21 | ||
JP2008-298516 | 2008-11-21 |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US13/111,911 Continuation US9352618B2 (en) | 2008-11-21 | 2011-05-19 | Pneumatic tire with tread having five ribs and four circumferential grooves |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2010058857A1 true WO2010058857A1 (fr) | 2010-05-27 |
Family
ID=42198296
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2009/069813 WO2010058857A1 (fr) | 2008-11-21 | 2009-11-24 | Bandage pneumatique pour roue de véhicule |
Country Status (5)
Country | Link |
---|---|
US (1) | US9352618B2 (fr) |
JP (1) | JP4553064B2 (fr) |
CN (1) | CN102224022A (fr) |
DE (1) | DE112009003641B4 (fr) |
WO (1) | WO2010058857A1 (fr) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20110315288A1 (en) * | 2010-06-24 | 2011-12-29 | Atsushi Yamahira | Heavy-load radial tire |
US9950570B2 (en) | 2012-12-28 | 2018-04-24 | The Yokohama Rubber Co., Ltd. | Pneumatic tire |
US9987883B2 (en) | 2012-12-28 | 2018-06-05 | The Yokohama Rubber Co., Ltd. | Pneumatic tire |
US10569603B2 (en) | 2013-04-23 | 2020-02-25 | The Yokohama Rubber Co., Ltd. | Pneumatic tire |
Families Citing this family (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP6299219B2 (ja) * | 2012-07-13 | 2018-03-28 | 横浜ゴム株式会社 | 空気入りタイヤ |
US10183531B2 (en) * | 2012-10-10 | 2019-01-22 | The Yokohama Rubber Co., Ltd. | Pneumatic tire |
CN104870208B (zh) * | 2012-12-28 | 2017-03-08 | 横滨橡胶株式会社 | 充气轮胎 |
KR101711816B1 (ko) * | 2012-12-28 | 2017-03-13 | 요코하마 고무 가부시키가이샤 | 공기입 타이어 |
WO2014103068A1 (fr) * | 2012-12-28 | 2014-07-03 | 横浜ゴム株式会社 | Bandage pneumatique |
CN105377587B (zh) * | 2013-07-30 | 2018-03-13 | 住友橡胶工业株式会社 | 重载荷用轮胎 |
JP6248621B2 (ja) * | 2013-12-25 | 2017-12-20 | 横浜ゴム株式会社 | ゴム組成物およびこれを用いる空気入りタイヤ |
JP6599218B2 (ja) * | 2015-11-18 | 2019-10-30 | Toyo Tire株式会社 | 空気入りタイヤ |
JP6980371B2 (ja) * | 2016-09-09 | 2021-12-15 | 株式会社ブリヂストン | タイヤ |
JP6926467B2 (ja) * | 2016-12-22 | 2021-08-25 | 横浜ゴム株式会社 | 空気入りタイヤ |
JP6879086B2 (ja) * | 2017-07-04 | 2021-06-02 | 住友ゴム工業株式会社 | 空気入りタイヤ |
US11701925B2 (en) | 2017-12-01 | 2023-07-18 | The Goodyear Tire & Rubber Company | Stabilizer structure for a tread of a tire |
CN108501623B (zh) * | 2018-06-12 | 2024-03-26 | 正新橡胶(中国)有限公司 | 充气轮胎和汽车 |
JP2024007193A (ja) * | 2022-07-05 | 2024-01-18 | Toyo Tire株式会社 | 空気入りタイヤ |
Citations (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5647306A (en) * | 1979-09-28 | 1981-04-30 | Yokohama Rubber Co Ltd:The | Radial pneumatic tire for heavy vehicle |
JPS63240403A (ja) * | 1987-03-26 | 1988-10-06 | Yokohama Rubber Co Ltd:The | 重荷重用空気入りラジアルタイヤ |
JPH05330315A (ja) * | 1992-06-04 | 1993-12-14 | Bridgestone Corp | 空気入りタイヤ |
JPH10315712A (ja) * | 1997-05-16 | 1998-12-02 | Sumitomo Rubber Ind Ltd | 重荷重用ラジアルタイヤ |
JPH11512050A (ja) * | 1995-08-28 | 1999-10-19 | ザ グッドイヤー タイヤ アンド ラバー カンパニー | 低アスペクト比トラックタイヤ |
JP2000233606A (ja) * | 1999-02-12 | 2000-08-29 | Sumitomo Rubber Ind Ltd | 空気入りタイヤ |
JP2001301425A (ja) * | 2000-04-24 | 2001-10-31 | Bridgestone Corp | 空気入りタイヤ |
WO2004028836A1 (fr) * | 2002-09-26 | 2004-04-08 | Bridgestone Corporation | Pneumatique |
JP2004307619A (ja) * | 2003-04-04 | 2004-11-04 | Yokohama Rubber Co Ltd:The | ゴム組成物およびそれをトレッドゴムに用いた空気入りタイヤ |
JP2006021702A (ja) * | 2004-07-09 | 2006-01-26 | Yokohama Rubber Co Ltd:The | 空気入りタイヤ及び小型トラック用空気入りタイヤ |
JP2006062518A (ja) * | 2004-08-26 | 2006-03-09 | Sumitomo Rubber Ind Ltd | 重荷重用空気入りタイヤ及びその製造方法 |
JP2007137411A (ja) * | 2005-10-17 | 2007-06-07 | Sumitomo Rubber Ind Ltd | 重荷重用タイヤ |
JP2007182097A (ja) * | 2005-12-29 | 2007-07-19 | Sumitomo Rubber Ind Ltd | 重荷重用タイヤ |
JP2009262888A (ja) * | 2008-04-30 | 2009-11-12 | Yokohama Rubber Co Ltd:The | 重荷重用空気入りタイヤ |
Family Cites Families (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4480671A (en) * | 1982-04-26 | 1984-11-06 | Michelin Recherche Et Technique S.A. | Tread and heavy duty tire |
JPS60234005A (ja) * | 1984-05-02 | 1985-11-20 | Bridgestone Corp | ウエツト性能に優れる空気入りタイヤ |
JPH0241909A (ja) * | 1988-08-03 | 1990-02-13 | Bridgestone Corp | 空気入りタイヤ |
JPH0277306A (ja) * | 1988-09-12 | 1990-03-16 | Sumitomo Rubber Ind Ltd | 重荷重用ラジアルタイヤ |
US5120209A (en) * | 1989-12-29 | 1992-06-09 | Macmillan Kenneth T | Apparatus for molding tire treads |
ATE115063T1 (de) * | 1990-09-05 | 1994-12-15 | Goodyear Tire & Rubber | Laufstreifen für luftreifen für lkw. |
JP3121391B2 (ja) | 1991-09-19 | 2000-12-25 | 株式会社ブリヂストン | 重荷重用空気入りタイヤ |
IT1276320B1 (it) * | 1994-02-22 | 1997-10-28 | Pirelli | Pneumatico per veicoli da trasporto medio/pesante con battistrada di tipo universale |
CA2171393A1 (fr) * | 1995-04-21 | 1996-10-22 | Jennifer Leigh Gabor | Bande de roulement de pneu de construction mixte |
US5660652A (en) | 1995-07-14 | 1997-08-26 | The Goodyear Tire & Rubber Company | Truck tire and tread for steer axles |
US5843249A (en) * | 1996-03-07 | 1998-12-01 | The Goodyear Tire & Rubber Company | Truck tire with cap/base construction tread |
JPH116726A (ja) | 1997-06-17 | 1999-01-12 | Hoya Corp | 反り値の測定方法及び測定装置 |
JP4637317B2 (ja) * | 2000-02-29 | 2011-02-23 | 株式会社ブリヂストン | 大型車用バイアスタイヤ |
IT1320423B1 (it) * | 2000-06-09 | 2003-11-26 | Bridgestone Firestone Tech | Pneumatico radiale per trasporto pesante. |
EP1184206B1 (fr) * | 2000-08-31 | 2007-01-03 | The Goodyear Tire & Rubber Company | Bandage pneumatique pour poids-lourds |
JP3853339B2 (ja) | 2004-10-19 | 2006-12-06 | 横浜ゴム株式会社 | ゴム材料の混練り制御方法及びその制御装置 |
US7784510B2 (en) | 2005-10-17 | 2010-08-31 | Sumitomo Rubber Industries, Ltd. | Heavy duty tire having cap and base rubber layers, belt cushion rubber and sidewall rubber |
-
2009
- 2009-11-24 CN CN2009801463718A patent/CN102224022A/zh active Pending
- 2009-11-24 DE DE112009003641.4T patent/DE112009003641B4/de not_active Expired - Fee Related
- 2009-11-24 JP JP2009266711A patent/JP4553064B2/ja active Active
- 2009-11-24 WO PCT/JP2009/069813 patent/WO2010058857A1/fr active Application Filing
-
2011
- 2011-05-19 US US13/111,911 patent/US9352618B2/en active Active
Patent Citations (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5647306A (en) * | 1979-09-28 | 1981-04-30 | Yokohama Rubber Co Ltd:The | Radial pneumatic tire for heavy vehicle |
JPS63240403A (ja) * | 1987-03-26 | 1988-10-06 | Yokohama Rubber Co Ltd:The | 重荷重用空気入りラジアルタイヤ |
JPH05330315A (ja) * | 1992-06-04 | 1993-12-14 | Bridgestone Corp | 空気入りタイヤ |
JPH11512050A (ja) * | 1995-08-28 | 1999-10-19 | ザ グッドイヤー タイヤ アンド ラバー カンパニー | 低アスペクト比トラックタイヤ |
JPH10315712A (ja) * | 1997-05-16 | 1998-12-02 | Sumitomo Rubber Ind Ltd | 重荷重用ラジアルタイヤ |
JP2000233606A (ja) * | 1999-02-12 | 2000-08-29 | Sumitomo Rubber Ind Ltd | 空気入りタイヤ |
JP2001301425A (ja) * | 2000-04-24 | 2001-10-31 | Bridgestone Corp | 空気入りタイヤ |
WO2004028836A1 (fr) * | 2002-09-26 | 2004-04-08 | Bridgestone Corporation | Pneumatique |
JP2004307619A (ja) * | 2003-04-04 | 2004-11-04 | Yokohama Rubber Co Ltd:The | ゴム組成物およびそれをトレッドゴムに用いた空気入りタイヤ |
JP2006021702A (ja) * | 2004-07-09 | 2006-01-26 | Yokohama Rubber Co Ltd:The | 空気入りタイヤ及び小型トラック用空気入りタイヤ |
JP2006062518A (ja) * | 2004-08-26 | 2006-03-09 | Sumitomo Rubber Ind Ltd | 重荷重用空気入りタイヤ及びその製造方法 |
JP2007137411A (ja) * | 2005-10-17 | 2007-06-07 | Sumitomo Rubber Ind Ltd | 重荷重用タイヤ |
JP2007182097A (ja) * | 2005-12-29 | 2007-07-19 | Sumitomo Rubber Ind Ltd | 重荷重用タイヤ |
JP2009262888A (ja) * | 2008-04-30 | 2009-11-12 | Yokohama Rubber Co Ltd:The | 重荷重用空気入りタイヤ |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20110315288A1 (en) * | 2010-06-24 | 2011-12-29 | Atsushi Yamahira | Heavy-load radial tire |
CN102310721A (zh) * | 2010-06-24 | 2012-01-11 | 住友橡胶工业株式会社 | 载重子午线轮胎 |
JP2012006484A (ja) * | 2010-06-24 | 2012-01-12 | Sumitomo Rubber Ind Ltd | 重荷重用ラジアルタイヤ |
AU2011202890B2 (en) * | 2010-06-24 | 2014-07-24 | Sumitomo Rubber Industries, Ltd. | Heavy-load radial tyre |
US9045007B2 (en) * | 2010-06-24 | 2015-06-02 | Sumitomo Rubber Industries, Ltd. | Heavy-load radial tire |
US9950570B2 (en) | 2012-12-28 | 2018-04-24 | The Yokohama Rubber Co., Ltd. | Pneumatic tire |
US9987883B2 (en) | 2012-12-28 | 2018-06-05 | The Yokohama Rubber Co., Ltd. | Pneumatic tire |
US10569603B2 (en) | 2013-04-23 | 2020-02-25 | The Yokohama Rubber Co., Ltd. | Pneumatic tire |
Also Published As
Publication number | Publication date |
---|---|
CN102224022A (zh) | 2011-10-19 |
JP2010149842A (ja) | 2010-07-08 |
US20110220259A1 (en) | 2011-09-15 |
DE112009003641T5 (de) | 2012-10-11 |
DE112009003641B4 (de) | 2018-05-30 |
US9352618B2 (en) | 2016-05-31 |
JP4553064B2 (ja) | 2010-09-29 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP4553064B2 (ja) | 空気入りタイヤ | |
EP3130482B1 (fr) | Pneumatique à carcasse radiale destiné a être utilisé sur un véhicule de tourisme | |
CN107614291B (zh) | 充气轮胎 | |
JP5810204B1 (ja) | 乗用車用空気入りラジアルタイヤ | |
EP2586627B1 (fr) | Pneu | |
US8800616B2 (en) | Pneumatic tire with tread having groove area ratio | |
CN111295298B (zh) | 具有结合倾斜刀槽和特定材料的胎面的轮胎 | |
CN104853935A (zh) | 具有低滚动阻力的轮胎 | |
JP6346125B2 (ja) | 乗用車用空気入りラジアルタイヤ | |
EP3466726B1 (fr) | Pneumatique | |
JP2007331439A (ja) | 空気入りタイヤ | |
US8074690B2 (en) | Decoupling groove for pneumatic tire tread | |
JP4783334B2 (ja) | スタッドレスタイヤ | |
CN108284711B (zh) | 充气轮胎 | |
CN114683772A (zh) | 轮胎 | |
EP3501850B1 (fr) | Pneumatique | |
EP3766705B1 (fr) | Pneu autoporteur | |
JP2006001360A (ja) | 空気入りタイヤ | |
EP3486096B1 (fr) | Pneumatique | |
JP4388309B2 (ja) | 重荷重用タイヤ | |
JP2007090935A (ja) | 乗用車用空気入りタイヤ | |
JP2022097387A (ja) | タイヤ | |
JP2003072314A (ja) | 空気入りタイヤ |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
WWE | Wipo information: entry into national phase |
Ref document number: 200980146371.8 Country of ref document: CN |
|
121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 09827638 Country of ref document: EP Kind code of ref document: A1 |
|
122 | Ep: pct application non-entry in european phase |
Ref document number: 09827638 Country of ref document: EP Kind code of ref document: A1 |