CN103958219A - Heavy duty tire - Google Patents
Heavy duty tire Download PDFInfo
- Publication number
- CN103958219A CN103958219A CN201280058093.2A CN201280058093A CN103958219A CN 103958219 A CN103958219 A CN 103958219A CN 201280058093 A CN201280058093 A CN 201280058093A CN 103958219 A CN103958219 A CN 103958219A
- Authority
- CN
- China
- Prior art keywords
- tire
- band bundle
- shoulder main
- band
- main line
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
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
- B60C9/00—Reinforcements or ply arrangement of pneumatic tyres
- B60C9/18—Structure or arrangement of belts or breakers, crown-reinforcing or cushioning layers
- B60C9/1835—Rubber strips or cushions at the belt edges
- B60C9/185—Rubber strips or cushions at the belt edges between adjacent or radially below the belt plies
-
- 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
- B60C9/00—Reinforcements or ply arrangement of pneumatic tyres
- B60C9/18—Structure or arrangement of belts or breakers, crown-reinforcing or cushioning layers
- B60C9/20—Structure or arrangement of belts or breakers, crown-reinforcing or cushioning layers built-up from rubberised plies each having all cords arranged substantially parallel
-
- 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
- B60C9/00—Reinforcements or ply arrangement of pneumatic tyres
- B60C9/18—Structure or arrangement of belts or breakers, crown-reinforcing or cushioning layers
- B60C9/28—Structure or arrangement of belts or breakers, crown-reinforcing or cushioning layers characterised by the belt or breaker dimensions or curvature relative to carcass
-
- 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
- B60C9/00—Reinforcements or ply arrangement of pneumatic tyres
- B60C9/18—Structure or arrangement of belts or breakers, crown-reinforcing or cushioning layers
- B60C9/1835—Rubber strips or cushions at the belt edges
- B60C2009/1842—Width or thickness of the strips or cushions
Abstract
Provided is a heavy duty tire configured so that the separation of a belt ply occurring on the inside of a shoulder main groove in the radial direction of the tire is prevented. A heavy duty tire comprises a carcass (6), a belt layer (7), a shoulder main groove (9), and belt cushion rubber (10). The belt layer (7) includes first to fourth belt plies (7A-7D). The outer ends (7Ae-7Ce) of the first to third belt plies (7A-7C) are located further toward the outside in the axial direction of the tire than the shoulder main groove (9). The outer end (7De) of the fourth belt ply (7D) is located further toward the inside in the axial direction of the tire than the shoulder main groove (9). The inner end (10e) of the belt cushion rubber (10) is disposed further toward the inside in the axial direction of the tire than the inner edge line (L3) of the shoulder main groove. The cross-sectional area (S) of the inner region (10A) of the belt cushion rubber (10) is in the range from 2.5 mm2 to 20 mm2, inclusive.
Description
Technical field
The present invention relates to have the band tire of the splendid fetus face of durability.
Background technology
Fig. 4 illustrates the amplification cross sectional drawing of the fetus face of conventional band tire.This band tire comprises carcass (a) and bracing ply (b).Bracing ply (b) comprises from carcass towards radial outside first, second, third and four-tape bundle carcass plies (b1-b4) of stratification in turn.The axial length of the band bundle carcass plies b4 of outermost radial outside is less than the axial length of other three band bundle carcass pliess (b1 to b3).In addition the band bundle yielding rubber (c) that, has a general triangular shape of cross section is arranged between the axial outer end portion and carcass (a) of bracing ply (b).Band bundle yielding rubber (c) reduces the stress on the end of bracing ply (b).
Following patent document 1 discloses a kind of band tire, this band tire be characterized as second and the 3rd band bundle carcass plies (b2, b3) distance (d2) between is greater than the distance (d1) between the first band bundle carcass plies (d1) and casingply (a), and is restricted to certain scope from the axial inner ends (c1) of band bundle yielding rubber (c) to the distance of the axial outer end of the first band bundle carcass plies (b1).The band tire of patent document 1 has the effect of the end damage that prevents bracing ply (b).
Patent document 1: Japanese uncensored public announcement of a patent application No.H11-222008.
But conventional band tire is not considered the position relationship between the inner (c1) and the tire shoulder main line (e) of being with bundle yielding rubber (c).
The inner (c1) of band bundle yielding rubber (c) is positioned at the axial outside of tire shoulder main line (e) conventionally.Therefore, the problem of existence is that the stress while travelling easily concentrates near having compared with the tire shoulder main line (e) of thin rubber.And, between the band bundle carcass plies (b1 to b3) of centre that is positioned at tire shoulder main line (e), there is shear strain, and particularly, be tending towards separating between band bundle carcass plies (b2) and band bundle carcass plies (b3).
Summary of the invention
The problem to be solved in the present invention
The object of the invention is to prevent that the band bundle carcass plies that is positioned at tire shoulder main line below from producing separation.
The mode addressing this problem
In the present invention, band tire comprises carcass, bracing ply, band bundle yielding rubber and tire shoulder main line, and carcass extends through the bead core of sidewall portion to bead part from fetus face, and bracing ply is arranged on the radial outside at carcass in fetus face; Band bundle yielding rubber is arranged between the axial outer end portion and carcass of bracing ply, and band bundle yielding rubber has the shape of cross section of general triangular, and tire shoulder main line is arranged on the axial outside of fetus face.Bracing ply comprises multiple band bundle carcass pliess, and each band bundle carcass plies has the band bundle cord with respect to the angled setting of tire equator.With from the outside order of carcass, be with bundle carcass plies to comprise that the first band bundle carcass plies, the second band are restrainted carcass plies, the 3rd band is restrainted carcass plies and four-tape bundle carcass plies.Each band bundle carcass plies in the first to the 3rd band bundle carcass plies has the axial outer end in the axial outside that is positioned at tire shoulder main line.Four-tape bundle carcass plies has the axial outer end of the axial inner side that is positioned at tire shoulder main line.In the tire radial cross section that comprises tire rotation axis, the axial inner ends of band bundle yielding rubber is positioned at the axial inner side of tire shoulder main line inward flange line, and tire shoulder main line inward flange line is at the axial inward flange of the channel bottom that extends through in the radial direction tire shoulder main line of tire.And the cross-sectional area of the interior zone of band bundle yielding rubber is from 2.5mm
2to 20mm
2scope in, this interior zone is positioned at the radially inner side of tire shoulder main line inward flange line.
Preferably, the thickness of band bundle yielding rubber on tire shoulder groove inward flange line is in the scope from 2.0mm to 5.0mm.
Preferably, the axial distance between axial inner ends and the tire shoulder main line inward flange line of band bundle yielding rubber is in the scope from 7.5mm to 12.5mm.
Preferably, band bundle yielding rubber has the loss tangent (tan δ 1) that is less than 0.06.
Effect of the present invention
Band tire of the present invention comprises carcass, bracing ply, band bundle yielding rubber and tire shoulder main line, bracing ply is arranged on the radial outside at carcass in fetus face, band bundle yielding rubber is arranged between the axial outer end portion and carcass of bracing ply, band bundle yielding rubber has the shape of cross section of general triangular, and tire shoulder main line is located on the axial outside of fetus face.
The axial inner ends of band bundle yielding rubber is positioned at the axial inner side of tire shoulder main line inward flange line, and this tire shoulder main line inward flange line extends through the axial inward flange of the channel bottom of tire shoulder main line along the radial direction of tire.The cross-sectional area of the interior zone of band bundle yielding rubber is from 2.5mm
2to 20mm
2scope in, this interior zone is positioned at the axial inner side of tire shoulder main line inward flange line.
In band tire of the present invention, therefore discharge the stress on the inner side that acts on tire shoulder main line, and relaxed the shear strain of band bundle carcass plies.This contributes to prevent separating between near the second band bundle carcass plies radially inner side of tire shoulder main line and the 3rd band bundle carcass plies.
In band tire of the present invention, the interior zone of above-mentioned band bundle yielding rubber has from 2.5mm
2to 20mm
2scope in cross-sectional area so that prevent more definitely separate.And the area of restrainting the interior zone of yielding rubber due to band is limited in certain definite scope, therefore can prevent the damage being caused by the heating of band bundle yielding rubber.
Brief description of the drawings
Fig. 1 is the cross sectional drawing of band tire according to the embodiment of the present invention.
Fig. 2 is the enlarged drawing of the fetus face of Fig. 1.
Fig. 3 is the partial enlarged drawing of the tire shoulder main line of Fig. 1.
Fig. 4 is that cross sectional drawing is amplified in the part of the fetus face of conventional band tire.
Detailed description of the invention
Embodiments of the present invention are described with reference to the accompanying drawings below.Fig. 1 is that the band tire 1 according to present embodiment under reference standard conditions is comprising the cross-sectional plane in the tire radial cross section of tire rotation axis.Fig. 2 is the enlarged drawing of the fetus face 2 of Fig. 1.Fig. 3 is the partial enlarged drawing of the tire shoulder main line of Fig. 1.
" reference standard conditions " represents that tire is installed on standard rim (not shown) and is inflated to standard pressure but is not loaded the state of load.Unless otherwise noted, otherwise each size of tire measure " reference standard conditions " is lower.
Herein, " standard rim " represents is the definite wheel rim of each tire according to standard, this standard comprises the standard of tire institute foundation, and standard rim be standard rim with regard to JATMA, " design wheel rim (Design Rim) " and " the measuring wheel rim (Measuring Rim) " with regard to ETRTO with regard to TRA.In addition, " in standard, press " and represent to be the definite air pressure of each tire according to standard." standard pressure " represents that according to standard be the interior pressure that each tire is determined, this standard comprises the standard of tire institute foundation, and represent maximum air pressure with regard to JATMA, the maxim of description and " inflation pressure (the INFLATION PRESSURES) " with regard to ETRTO with regard to TRA and in Yan Biao " the tyre load limit values (TIRE LOAD LIMITS AT VARIOUS COLD INFLATION PRESSURES) under various cold tire inflation pressuries ".
As shown in fig. 1, band tire 1 of the present invention comprises carcass 6, bracing ply 7, band bundle yielding rubber 10 and triangle rubber rubber 8, carcass 6 extends through the bead core 5 of sidewall portion 3 to bead part 4 from fetus face 2, bracing ply 7 is arranged in fetus face 2, at the radial outside of carcass 6, between the axial outer end portion that band bundle yielding rubber 10 is arranged on bracing ply 7 and carcass 6 and have a shape of cross section of general triangular, triangle rubber rubber 8 is the radial outside extension from bead core 5 to tire in the mode of convergent.Fetus face 2 is provided with tire shoulder main line 9 and crown main line 11, and tire shoulder main line 9 is arranged on axial outermost, and crown main line 11 is arranged on the inner side of tire shoulder main line 9 in the axial direction.
Carcass 6 comprises single casingply 6A, this casingply 6A comprises annular planar main part 6a and turnup 6b, main part 6a extends through the bead core 5 of sidewall portion 3 to bead part 4 from fetus face 2, the inner side of turnup 6b around bead core 5 from tire axially anti-package to the outside of tire.Casingply 6A is the carcass plies that covers the body cord of rubber covering with top.For example, the body cord of present embodiment tilts with the angle of 75 degree to 90 degree with steel cord manufacture and with respect to tire equator C.
Triangle rubber rubber 8 is manufactured by solid rubber, and is arranged between the main part 6a and turnup 6b of casingply 6A.Triangle rubber rubber 8 outwards extends from bead core 5 diametrically in the mode of convergent, so that the bending stiffness of reinforcement sidewall portion 3 and bead part 4.
Tire shoulder main line 9 extends and arranges symmetrically with respect to tire equator C in the circumferential direction of tire.In the time travelling on wet road surface, this tire shoulder main line 9 can be discharged water between fetus face 2 and ground.
For example, crown main line 11 extends continuously and is arranged on tire equator C in the circumferential direction of tire.In the time travelling on wet road surface, this contributes to crown main line 11 also can between fetus face 2 and ground, discharge water.As another embodiment, multiple crown main lines 11 can be set on fetus face 2.
Bracing ply 7 comprises multiple band bundle carcass pliess, and each band bundle carcass plies has the band bundle cord with respect to the angled setting of tire equator C.With from the radially outer order of carcass 6, be with bundle carcass plies to comprise that the first band bundle carcass plies 7A, the second band bundle carcass plies 7B, the 3rd are with and restraint carcass plies 7C and four-tape bundle carcass plies 7D.The first band bundle carcass plies 7A has the band bundle cord arranging with the angle of 45 degree to 75 degree with respect to tire equator C.Each band bundle carcass plies in the second band bundle carcass plies 7B to the four-tape bundle carcass plies 7D has the band bundle cord arranging with the angle of 10 degree to 35 degree with respect to tire equator C.
At least two band bundle carcass plies tegillums in the first band bundle carcass plies 7A to the four-tape bundle carcass plies 7D are set to band bundle cord are intersected mutually, to improve the binding force on carcass.
As shown in Figure 2, first, second, and third band bundle carcass plies 7A to 7C has respectively axial outer end 7Ae, 7Be and 7Ce.These axial outer end 7Ae, 7Be and 7Ce are positioned at the axial outside of tire shoulder main line 9.That is to say, as shown in Figure 3, each in outer end 7Ae, 7Be and 7Ce is positioned in by the radial outside of the omnibearing line L1 of point of crossing P1.Point of crossing P1 is the extended line point crossing with the extended line obtaining by the axial outer side wall surface 9so that extends virtually tire shoulder main line 9 that the outside face 2o by extending virtually fetus face 2 obtains.This contributes to improve the rigidity of the tyre surface tire shoulder 2s of portion, and this tyre surface tire shoulder 2s of portion is positioned at the axial outside of the tire shoulder main line 9 of fetus face 2.
The axial outer end 7De of four-tape bundle carcass plies 7D is positioned at the axial inner side of tire shoulder main line 9.That is to say, as shown in Figure 3, outer end 7De is positioned at by the axial inner side of the omnibearing line L2 of point of crossing P2.Point of crossing P2 is the crossing point of extended line that the extended line that obtains of the outside face 2o by extending virtually fetus face 2 obtains with the trench wall surface 9si of the axial inner side by extending virtually tire shoulder main line.This has improved the rigidity of tyre surface central portion 2c effectively, and large load is on tyre surface central portion 2c in motion.In addition four-tape bundle carcass plies 7D protection the first band bundle carcass plies 7A to the three band bundle carcass plies 7C and carcass 6 etc..
Band bundle yielding rubber 10 has the shape of cross section of general triangular, to fill the gap between the 7e of axial outer end portion of bracing ply 7 and the outside face of carcass 6.This band bundle yielding rubber 10 reduces the first band bundle carcass plies 7A to the three bands and restraints the stress on the outer end of carcass plies 7C, and contributes to prevent that outer end 7Ae to the 7Ce place at band bundle carcass plies 7A to 7C from starting to separate.
In order further to improve above-mentioned strain relief effect, the complex elastic-modulus E* of band bundle yielding rubber 10 is preferably arranged on and is not more than 6MPa, is more preferably not more than in the scope of 4.5MPa.In the time that the complex elastic-modulus E* of band bundle yielding rubber 10 is too small, the rigidity of the outer end 7e of bracing ply 7 reduces, and road-holding property is easily deteriorated.Therefore, complex elastic-modulus E* is preferably arranged on and is not less than 2MPa, is more preferably not less than in the scope of 3.5MPa.
In the time that the loss tangent (tan δ) of band bundle yielding rubber 10 is excessive, band bundle yielding rubber 10 may produce a large amount of heat in motion, and be arranged on the first band bundle carcass plies 7A to the three and be with the rubber between bundle carcass plies 7C deteriorated due to heat, and more may cause separation.In view of more than, band bundle yielding rubber 10 preferably has the loss tangent (tan δ) that is less than 0.06.
In this manual, each in the composite modulus of rubber and loss tangent (tan δ) is all restricted to the value that uses the visoelasticity optical spectrometer of being manufactured by K.K.Iwamoto Seisakusyo (this making of rock institute of Co., Ltd.) to measure according to JIS-K6394 under the following conditions.
Initial strain: 10%
Amplitude: ± 2%
Frequency: 10Hz
Deformation pattern: stretch
Measure temperature: 70 degrees Celsius.
In the tire radial cross section that comprises tire rotation axis, the axial inner ends 10e of band bundle yielding rubber 10 is positioned at the axial inner side of tire shoulder main line inward flange line L3, and tire shoulder main line inward flange line L3 extends through the axial inward flange 9bi of the channel bottom 9b of tire shoulder main line 9 along the radial direction of tire.
As shown in Figure 3, the axial inward flange 9bi of the channel bottom 9b of tire shoulder main line 9 represents the crossing point of crossing P3 of extended line that extended line that the channel bottom 9b by extending virtually tire shoulder main line 9 obtains obtains with the trench wall surface 9si in the axial outside by extending virtually tire shoulder main line 9.
In conventional band tire, the inner 10e of band bundle yielding rubber 10 is positioned at the axial outside of tire shoulder main line inward flange line L3.For this reason, the stress acting on the inner side of tire shoulder main line 9 does not discharge fully and not effectively.Therefore,, in the mid-term of the wearing and tearing of fetus face 2, separate between the second band bundle carcass plies 7B and the 3rd band bundle carcass plies 7C through being everlasting.
In the present invention, the inner 10e of band bundle yielding rubber 10 is positioned at the radially inner side of tire shoulder main line inward flange line L3, makes band bundle yielding rubber 10 effectively alleviate the effect of stress on the inner side that acts on tire shoulder main line 9.This has reduced to act on the shear strain on bracing ply 7, and prevents in the radially inner side second band bundle carcass plies 7B of tire shoulder main line 9 and separating of the 3rd band bundle carcass plies 7C.Particularly, under each situation that the load of these effects on the outer end of the tyre surface tire shoulder 2s of portion experience wear and band bundle carcass plies 7A to 7C has increased, improved significantly.
As shown in Figure 2, band bundle yielding rubber 10 comprises interior zone 10A, and interior zone 10A is positioned at the axial inner side of tire shoulder main line inward flange line L3.Interior zone 10A has from 2.5mm
2to 20mm
2cross-sectional area S.When interior zone, 10A has the 2.5mm of being less than
2cross-sectional area S time, the stress acting on the inner side of tire shoulder main line 9 can not be reduced and be discharged fully, and easily separates.Especially, interior zone 10A preferably has the 9.0mm of being not less than
2, be more preferably not less than 14.0mm
2cross-sectional area S.
But in the time that the cross-sectional area S of interior zone 10A increases, the heat being produced by band bundle yielding rubber 10 in motion increases, and rubber is deteriorated due to heat between the first band bundle carcass plies 7A to the three band bundle carcass plies 7C, and easily damages.According to this respect, the cross-sectional area S of interior zone 10A is preferably arranged on and is not more than 18mm
2, be more preferably not more than 16.0mm
2scope in.
On tire shoulder main line inward flange line L3, in the time that the thickness (t) of band bundle yielding rubber 10 reduces, acting near tire shoulder main line 9 stress can not be alleviated fully, and easily separates.Preferably, band bundle yielding rubber 10 has the thickness (t) that is not less than 1.0mm, is more preferably not less than 2.0mm.In the time that the thickness (t) of band bundle yielding rubber 10 increases, the heat being produced by band bundle yielding rubber 10 increases, and rubber is deteriorated due to heat between the first band bundle carcass plies 7A to the three band bundle carcass plies 7C, and easily damages.Likely can not obtain the level and smooth profile of arc carcass 6.Therefore, thickness (t) is preferably being not more than 8.0mm, being more preferably not more than in the scope of 5.0mm.
Axial distance W between inner 10e and the tire shoulder main line inward flange line L3 of band bundle yielding rubber 10 is preferably arranged on and is not less than 5.0mm, is more preferably not less than in the scope of 7.5mm.In the time that axial distance W is less than 5.0mm, acts near tire shoulder main line 9 stress and do not alleviated fully, and easily separate.But axial distance W is preferably not more than 12.5mm.In the time that axial distance W is large, the size of band bundle yielding rubber 10 increases, and likely reduces the rigidity of tyre surface central portion 2c.
In this manual, the shape of cross section of interior zone 10A is considered to leg-of-mutton, and cross-sectional area S calculates by following equation (1) according to thickness (t) and axial distance W:
S＝t×W×1/2……………(1)
Although described the present invention in detail, the invention is not restricted to above-mentioned detailed description of the invention, and can carry out various amendments.
Example
There is the band tire (size: 11.00R20) of the basic structure shown in Fig. 1 as the sample of the specification based on shown in table 1.The tested impact resistance of each test tire, heat generation and travel after complex elastic-modulus E*.Test method is as follows.
< impact resistance >
Each test tire is installed in wheel rim (20 × 8.00) above and is inflated to the interior pressure of 1000kpa.Test tire travels on rotary drum with 40km/h, and this rotary drum comprises the bulge for producing in its surface impact, and measures the driving range in the situation that nothing being damaged on fetus face.Bulge has and records highly as 25.4mm, upper base are 30mm, the end trapezoidal cross-section that is 70mm, and in length along circumferentially extending 65mm.Bulge is attached to rotary drum to be positioned in tire shoulder main line.Result is used index to show, the result of example 1 is 100.Be worth greatlyr, the durability of fetus face is better.
< heat generation >
Each test tire is to be installed on wheel rim under 725kPa and the load condition that is 23.68kN in interior pressure, and then tire travels on the rotary drum machine with smooth surface with the speed of 80km/h and the temperature of 35 degrees Celsius.After travelling two hours, measure the temperature of fetus face.The radially inner side of tire shoulder main line and radially outward the position of the outside face 2mm of distance the 3rd band bundle carcass plies measure this temperature.Result is used reciprocal demonstration, and the result of example 1 is 100.Be worth greatlyr, while travelling, cal val is less.
Complex elastic-modulus E*> after < travels
At test tire with after heat generation is tested and is travelled under identical condition, test tire is disassembled, and measures the complex elastic-modulus E* that is arranged on the radially inner side of tire shoulder main line and the rubber between the second band bundle carcass plies and the 3rd band bundle carcass plies.Result is used reciprocal demonstration, and the result of example 1 is 100.Be worth greatlyr, the minimizing of complex elastic-modulus E* is less after travel.It is little that less minimizing is illustrated between the second band bundle carcass plies and the 3rd band bundle carcass plies shear strain, and rubber is less deteriorated.
From table 1, be clear that, and compare with reference to 2 with reference to 1, example 1 is improved aspect complex elastic-modulus E*, heat generation and the impact resistance after travelling more in the mode of balance.
Reference numeral annotation
2 fetus faces
3 sidewall portions
4 bead part
5 bead cores
6 carcasses
7 bracing plys
8 triangle rubber rubber
9 tire shoulder main lines
10 band bundle yielding rubbers
Claims (4)
1. a band tire, it comprises
Carcass, described carcass extends through the bead core of sidewall portion to bead part from fetus face;
Bracing ply, described bracing ply is arranged on the radial outside at described carcass in described fetus face;
Band bundle yielding rubber, described band bundle yielding rubber is arranged between the axial outer end portion and described carcass of described bracing ply, and described band bundle yielding rubber has the shape of cross section of general triangular; And
Tire shoulder main line, described tire shoulder main line is located at the axial outside of described fetus face; Wherein
Described bracing ply comprises multiple band bundle carcass pliess, and the each band bundle carcass plies in described multiple band bundle carcass pliess has the band bundle cord with respect to the angled setting of tire equator,
With from the outside order of described carcass, described band bundle carcass plies comprises the first band bundle carcass plies, the second band bundle carcass plies, the 3rd band bundle carcass plies and four-tape bundle carcass plies,
Described the first band bundle carcass plies has the axial outer end in the axial outside that is positioned at described tire shoulder main line to the each band bundle carcass plies in described the 3rd band bundle carcass plies,
Described four-tape bundle carcass plies has the axial outer end of the axial inner side that is positioned at described tire shoulder main line,
In the tire radial cross section that comprises tire rotation axis, the axial inner ends of described band bundle yielding rubber is positioned at the axial inner side of tire shoulder main line inward flange line, described tire shoulder main line inward flange line is at the axial inward flange of the channel bottom that extends through in the radial direction described tire shoulder main line of described tire, and
The cross-sectional area of the interior zone of described band bundle yielding rubber is from 2.5mm
2to 20mm
2scope in, described interior zone is positioned at the radially inner side of described tire shoulder main line inward flange line.
2. band tire according to claim 1, wherein, the thickness of described band bundle yielding rubber on tire shoulder groove inward flange line is in the scope from 2.0mm to 5.0mm.
3. band tire according to claim 1 and 2, wherein, the axial distance between the described axial inner ends of described band bundle yielding rubber and described tire shoulder main line inward flange line is in the scope from 7.5mm to 12.5mm.
4. according to the band tire described in any one in claims 1 to 3, wherein, described band bundle yielding rubber has that to be less than 0.06 loss tangent be tan δ 1.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2011258004A JP5564031B2 (en) | 2011-11-25 | 2011-11-25 | Heavy duty tire |
| JP2011-258004 | 2011-11-25 | ||
| PCT/JP2012/080481 WO2013077449A1 (en) | 2011-11-25 | 2012-11-26 | Heavy duty tire |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103958219A true CN103958219A (en) | 2014-07-30 |
| CN103958219B CN103958219B (en) | 2016-08-31 |
Family
ID=48469888
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201280058093.2A Expired - Fee Related CN103958219B (en) | 2011-11-25 | 2012-11-26 | High-capacity tyre |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP5564031B2 (en) |
| CN (1) | CN103958219B (en) |
| WO (1) | WO2013077449A1 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5870082B2 (en) * | 2013-12-19 | 2016-02-24 | 住友ゴム工業株式会社 | Heavy duty tire |
| JP6798273B2 (en) * | 2016-11-21 | 2020-12-09 | 住友ゴム工業株式会社 | Pneumatic tires |
| JP6859867B2 (en) * | 2017-06-22 | 2021-04-14 | 住友ゴム工業株式会社 | Pneumatic tires |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05185809A (en) * | 1991-07-05 | 1993-07-27 | Sumitomo Rubber Ind Ltd | Pneumatic radial tire |
| JP2001138708A (en) * | 1999-11-15 | 2001-05-22 | Toyo Tire & Rubber Co Ltd | Pneumatic tire |
| JP2002087019A (en) * | 2000-09-18 | 2002-03-26 | Bridgestone Corp | Pneumatic tire |
| US20020088521A1 (en) * | 2000-11-13 | 2002-07-11 | Yoichi Mizuno | Rubber composition for breaker cushion |
| JP2003335110A (en) * | 2002-05-20 | 2003-11-25 | Sumitomo Rubber Ind Ltd | Pneumatic tire for heavy load |
-
2011
- 2011-11-25 JP JP2011258004A patent/JP5564031B2/en not_active Expired - Fee Related
-
2012
- 2012-11-26 WO PCT/JP2012/080481 patent/WO2013077449A1/en active Application Filing
- 2012-11-26 CN CN201280058093.2A patent/CN103958219B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05185809A (en) * | 1991-07-05 | 1993-07-27 | Sumitomo Rubber Ind Ltd | Pneumatic radial tire |
| JP2001138708A (en) * | 1999-11-15 | 2001-05-22 | Toyo Tire & Rubber Co Ltd | Pneumatic tire |
| JP2002087019A (en) * | 2000-09-18 | 2002-03-26 | Bridgestone Corp | Pneumatic tire |
| US20020088521A1 (en) * | 2000-11-13 | 2002-07-11 | Yoichi Mizuno | Rubber composition for breaker cushion |
| JP2003335110A (en) * | 2002-05-20 | 2003-11-25 | Sumitomo Rubber Ind Ltd | Pneumatic tire for heavy load |
Also Published As
| Publication number | Publication date |
|---|---|
| JP5564031B2 (en) | 2014-07-30 |
| CN103958219B (en) | 2016-08-31 |
| WO2013077449A1 (en) | 2013-05-30 |
| JP2013112060A (en) | 2013-06-10 |
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