CN102463851B - Pneumatic tire - Google Patents
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- CN102463851B CN102463851B CN201010531281.5A CN201010531281A CN102463851B CN 102463851 B CN102463851 B CN 102463851B CN 201010531281 A CN201010531281 A CN 201010531281A CN 102463851 B CN102463851 B CN 102463851B
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- 230000000052 comparative effect Effects 0.000 description 24
- 239000011324 bead Substances 0.000 description 9
- 239000000446 fuel Substances 0.000 description 8
- 230000000694 effects Effects 0.000 description 6
- 238000005096 rolling process Methods 0.000 description 5
- 230000002349 favourable effect Effects 0.000 description 4
- 230000001603 reducing effect Effects 0.000 description 4
- RKTYLMNFRDHKIL-UHFFFAOYSA-N copper;5,10,15,20-tetraphenylporphyrin-22,24-diide Chemical compound [Cu+2].C1=CC(C(=C2C=CC([N-]2)=C(C=2C=CC=CC=2)C=2C=CC(N=2)=C(C=2C=CC=CC=2)C2=CC=C3[N-]2)C=2C=CC=CC=2)=NC1=C3C1=CC=CC=C1 RKTYLMNFRDHKIL-UHFFFAOYSA-N 0.000 description 3
- 230000007812 deficiency Effects 0.000 description 3
- 238000005987 sulfurization reaction Methods 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 2
- 238000000748 compression moulding Methods 0.000 description 2
- 239000000945 filler Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 230000005283 ground state Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 210000002268 wool Anatomy 0.000 description 1
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- Tires In General (AREA)
Abstract
The invention provides a pneumatic tire. The tire comprises a plurality of protruding parts which are arranged on the outer surface of the tire, wherein, each protruding part has a height in a range of 0.5 to 4 mm, and a protruding part at an external position in the radial direction of the tire relative to a position where an overall width value of the tire reaches maximum has a maximum height; the tire includes an external diameter set in a range of 0 to 6 mm relative to a lower limit of a standard size in a state that the tire is assembled into a standard wheel rim and is applied with normal internal pressure, overall width exempt from the protruding parts and tread contact width set in a range of 60 to 75% of the overall width exempt from the protruding parts and obtained under the condition of 60% of loading. The pneumatic tire can effectively reduce air resistance during high-speed driving.
Description
Technical field
The present invention relates to a kind of air-inflation tyre, this air-inflation tyre is such as manned vehicle, truck and passenger vehicle.
Background technology
In recent years, together with the more High Performance of automobile, the also various performances of demand tire, and on the other hand, in order to realize resources conservation and reduce free air capacity, required the exploitation of the tire with fabulous fuel efficiency.In order to increase fuel efficiency, it is important for reducing the rolling resistance of tire, but rolling resistance depends on the material of rubber and rigidity etc., makes to exist the restriction improving rolling resistance.As shown in Figure 10, when the speed (rotative speed of tire) of vehicle increases, rolling resistance also increases, and in addition, the air resistance of tire also increases, and which results in the deterioration of fuel efficiency.
Therefore, there is known a kind of tire, in this tire, in order to reduce air resistance, from tyre surface end to sidewall sections on shoulder portions, being provided with disturbance and preventing region, to prevent disturbance in shoulder portion office, described disturbance prevents region from not having the irregularity of such as groove, pattern and character, and therefore, reduces the air resistance on surface of tyre.The example of such structure is open in JP-A-2003-127615.
But when carrying out measuring for preventing the generation of disturbance in shoulder portion office, the air-flow around tire becomes laminar flow, and to make the rear portion air pressure step-down of tire when the vehicle is running, and the power pulling back tire works.Therefore, even if the air resistance on surface of tyre reduces, also bring low-pressure section at the rear portion place of about tire, reduce effect to make obtaining air resistance fully when to run at high speed.
Summary of the invention
The object of this invention is to provide a kind of air-inflation tyre, this air-inflation tyre effectively can reduce air resistance when to run at high speed.
According to aspects of the present invention, a kind of air-inflation tyre is provided, comprise: multiple projection, described multiple projection is arranged on airtyred tire outer surface, described projection extends in the radial direction at tire and between each projection, have interval in tire circumferential direction, along the interval of tire circumferential direction on tire outer surface, wherein each projection there is from 0.5mm to 4mm scope in height and compared with the position that tire is maxim with overall tire width in the radial direction outer position there is maximum height, and wherein this air-inflation tyre comprises: be assembled to standard rim relative to air-inflation tyre and standard-sized lower limit under the state applying normal air pressure, be set as falling into the external diameter in the scope of 0mm to 6mm and not projecting overall width, and be set as falling into the described overall width except described projection 60% to 75% scope in the tyre surface ground connection width when 60% load.
Accompanying drawing explanation
The total structure implementing various feature of the present invention will be described with reference to the drawings.Accompanying drawing and associated description are arranged for illustrating embodiments of the invention instead of not limiting the scope of the invention.
Fig. 1 is the airtyred fragmentary front part cutaway view that the first embodiment of the present invention is shown.
Fig. 2 is the airtyred fragmentary front part cutaway view that ground state is shown.
Fig. 3 is airtyred front cross-sectional view.
Fig. 4 is airtyred partial side view.
Fig. 5 is airtyred essential part cutaway view.
Fig. 6 is the cutaway view of the projection along the VI-VI line intercepting shown in Fig. 4.
Fig. 7 is the airtyred essential part cutaway view that the second embodiment of the present invention is shown.
Fig. 8 is the airtyred partial side view that the third embodiment of the present invention is shown.
Fig. 9 A and Fig. 9 B shows the cutaway view of the exemplary variation of projection.
Figure 10 is the airtyred fragmentary front part cutaway view that the fourth embodiment of the present invention is shown.
Figure 11 is airtyred partial side view.
Figure 12 is the airtyred partial side view that the fifth embodiment of the present invention is shown.
Figure 13 is the airtyred fragmentary front part cutaway view that the sixth embodiment of the present invention is shown.
Figure 14 A and Figure 14 B is the sectional view of the exemplary variation that groove is shown.
Figure 15 A and Figure 15 B shows the schematic diagram of the air-flow around tire.
Figure 16 shows the form of test result.
Figure 17 shows the view of the relation between speed and rolling resistance and between speed and air resistance.
Detailed description of the invention
Describe in detail according to embodiments of the invention with reference to accompanying drawing.The present invention's scope required for protection should not be limited to graphic example and those contents described below in accompanying drawing.
Below, with reference to Fig. 1 to Fig. 4, the first embodiment of the present invention is described.Air-inflation tyre shown in these accompanying drawings is included in the tread portion 1 that tire outer surface side is formed, the pair of sidewalls part 2 formed on both sides along tire width direction, the pair of bead portions 3 formed on both sides along tire width direction and the shoulder portions 4 formed between tread portion 1 and sidewall sections 2.
This air-inflation tyre by being arranged in the liner 5 of tire inner surface side, the carcass structure 6 be arranged on the outside of liner 5, to be arranged in the pair of bead component 7 on both sides along tire width direction, the band 8 be arranged on the outside of carcass structure 6, the pair of sidewalls component 10 that is arranged in the tread member 9 on tire outer surface side and is arranged on the both side surface side of tire.
Liner 5 is that main material is formed by the laminar rubber with low-permeable, and is arranged on the inner peripheral surface side of carcass structure 6.
Carcass structure 6 is formed by covering multiple reinforcement cord 6a with laminar rubber, and both end sides is folded back sidewall sections 2 bead part to be rolled onto together along tire width direction from the interior outside that measures.
Bead member 7 comprises by by line, such as metal wool, the bead core 7a that sheave is formed and the bead filler thing 7b formed by the rubber with general triangular cross section shape, and bead filler thing 7b is arranged on the outer circumferential side of bead core 7a.
Band 8 is by covering the band cord be made up of iron and steel or high strength fibre and being formed with laminar rubber, and described band 8 is arranged on the outer surface side of carcass structure 6.
Tread member 9 is made up of the rubber being formed by compression moulding, and be arranged with the outer surface side along side in the Width covering of carcass structure 6 and band 8, and on the outer surface of tread member, the groove 1a forming tread pattern is formed when sulfuration is molded.
Side wall member 10 is made up of the rubber being formed by compression moulding, and is arranged with the tire width direction covering both sides along carcass structure 6.
On airtyred outer surface, be provided with the many projections 11 extended along tire radial direction with consistent width, and projection 11 is arranged with equal interval along tire circumferential direction.As shown in Figure 6, each projection 11 is formed as the section shape with the quadrangle vertical with tire radial direction, and has be not less than 0.5mm and be not more than the height X of 4mm vertical with surface of tyre.In this case, each projection 11 is formed as the height X ratio height on both ends in a longitudinal direction on central portion in a longitudinal direction making it, and be positioned at than part Q2 closer to outside along tire radial direction part Q1, height becomes the maxim of projection at described part Q1 place, except projection 11 cover overall width SW becomes maxim at described part Q2 place.Projection 11 does not comprise by the character indicated on the surface in tyre side, symbol and marks the projection formed.
Be assembled to standard rim according to JATMA standard, ETRTO standard or TRA standard and under the state applying normal air pressure at tire, air-inflation tyre be formed as making outer diameter D and except projection 11 outer overall width SW relative to standard-sized lower limit being not less than 0mm and being not more than in the scope of 6mm.Here, described standard size is external diameter and the overall width of JATMA standard, ETRTO standard or TRA standard control.But JATMA standard does not control the lower limit of overall width, the lower limit controlled by ETRTO standard is made to be used as the lower limit of overall width.
In addition, when air-inflation tyre is formed as making 60% load tyre surface ground connection width TW become be not less than except projection 11 outer overall width SW 60% and be not more than 75% except the outer overall width SW of projection 11.
The air-inflation tyre of the present embodiment is formed as making outer diameter D and overall width SW relative to standard-sized lower limit being not less than 0mm and being not more than in the scope of 6mm, make outer diameter D and overall width SW be set to minimum size in standard-sized scope or close to minimum size, and raised areas forward become less than having the raised areas being forward greater than the external diameter of scope and the tire of overall width.In addition, tire is formed as that tyre surface ground connection width TW is become and is not less than 60% of overall width SW and is not more than 75% of overall width SW, and therefore, projection forward becomes less than the projection forward of the tire T ' with the tyre surface ground connection width being greater than scope (long-short dash line for Fig. 2 substituted).In addition, the many projections 11 be arranged on tire outer surface around the air-flow of tire are when the vehicle is running accelerated.In this case, rotating speed becomes relatively higher on inner side along tire radial direction along tire radial direction ratio on outside, and part Q1 is positioned at than part Q2 closer to outside along tire radial direction, height X becomes the maxim of projection 11 at described part Q1 place, overall tire width SW becomes maxim at described part Q2 place, and the air rectification effect of projection 11 is increased.
The air-inflation tyre of the present embodiment is formed as making outer diameter D and overall width SW relative to standard-sized lower limit being not less than 0mm and being not more than in the scope of 6mm, and tyre surface ground connection width TW become be not less than overall width SW 60% and be not more than 75% of overall width SW, to enable raised areas forward less by what do, and air resistance can be effectively reduced when to run at high speed.Especially, the earthed surface side of tire be can't help the front surface of vehicle and is covered, to make by reducing tyre surface ground connection width TW relative to overall width SW, the raised areas forward on earthed surface side can be less by what do as shown in Figure 2, and this is very favorable for reduction air resistance.
In addition, the many projections 11 extended along tire radial direction are arranged along the circumferential direction of tire interval on tire outer surface, and along tire radial direction part Q1 than part Q2 closer to outside, the height X of projection 11 becomes maxim at described part Q1 place, overall tire width SW becomes maxim at described Q2 place, to enable to be accelerated by projection 11 around the air-flow of tire when the vehicle is running, and the air resistance of tire can more effectively be reduced when to run at high speed.
In this case, each projection 11 is formed as having and is not less than 0.5mm and is not more than the height X of 4mm, makes to prevent highly become too low and make air rectification effect deficiency and prevent highly to become too high and the air resistance adding tire.
In above-described embodiment, projection 11 is illustrated, the height X of described projection 11 becomes maxim at their central portion in a longitudinal direction, but, also possible that height X becomes maxim along tire radial direction at outboard end place, as the projection 12 as shown in second embodiment of Fig. 7.
In a first embodiment, be formed as the projection 11 that consistent width extends along tire radial direction to be illustrated, but projection can be formed as the width Y inwards increasing them along tire radial direction, as the projection 13 as shown in the 3rd embodiment of Fig. 3.Particularly, in tyre side on the surface, rubber thickness is upper than upper thin in inner side (bead part 3 side) along tire radial direction in outside (shoulder portions 4 side) along tire radial direction, if rubber when being molded to make sulfuration on shoulder portions 4 side is large to the flow of the molding side of each projection 11, rubber thickness then on shoulder portions 4 side becomes thinner and distortion increases, but, on outside, width Y is reduced by the radial direction along projection 11, the flow of rubber when sulfuration is molded on shoulder portions 4 side to each projection 11 can be reduced, and can prevent the rubber thickness on shoulder portions 4 side from becoming thinner.
In addition, in above-described first embodiment, the projection 11 being formed as having the tetragonal section shape vertical with tire radial direction is illustrated, but, projection can be formed as having chevron (triangle), as the projection 14 as shown in the exemplary variation of Fig. 9 A.Therefore, make the volume of projection 14 be less than the volume of quadrangle projection, and therefore, it is possible to the rubber reducing so volume uses, and this weight reduces the improvement that result in fuel efficiency.In this case, forming to make two of chevron limits the shape concaved by forming each projection, as the projection 15 as shown in another exemplary variation of Fig. 9 B, the volume of projection 15 can be reduced further.
Under the state that tire is assembled to vehicle, along the Width of vehicle on outside, air flows equably backward, but, along the Width of vehicle on inner side, tire is disposed in tire enclosure interior and miscellaneous part, such as axletree, near being disposed in, to make the easy multilated of air-flow.Therefore, because the air draft acceleration effect of projection 11 (12,13,14,15) and rectification effect can only be obtained fully along the Width of vehicle on inner side, the easy multilated of described inner side overdraught, make also to allow projection 11 (12,13,14,15) to be arranged on a side surface along tire width direction, when tire is assembled to vehicle, described side surface becomes the inner side along vehicle-width direction.Therefore, it is possible to reduce the cost for the formation of the mould of projection 11 (12,13,14,15).
In this case, along on the opposite side of tire width direction, as as shown in the 4th embodiment of Figure 10 and Figure 11, many grooves 16 can along tire circumferential direction and tire radial direction at the predetermined second area A2 except the A1 of first area (such as, the scope of be not less than tire cross-sectional height H along tire radial direction from medial end 35% and be not more than tire cross-sectional height H 85%) arrange, when tire is assembled to vehicle, described opposite side becomes the outside of the Width along vehicle, described first area A1 along tire radial direction from medial end in 35% of tire cross-sectional height H.The normal air pressure that tire cross-sectional height is JATMA standard, ETRTO standard or TRA standard control to be charged in tire and tire cross-sectional height under applying the normally loaded state controlled by identical standard.Groove 16 is formed spheroidal, and diameter is not less than 0.5mm and is not more than 8mm, and extreme depth is not less than 0.3mm and is not more than 2mm, and is formed as same size and arranges with same intervals.In this case, groove 16 is formed as that the gross area (the whole area of all grooves 16 on surface of tyre) is become relative to second area A2 and is not less than 10% and is not more than 80%.Groove 16 does not comprise the groove of character, symbol or the mark of instruction on tyre side surface.Therefore, when the vehicle is running due to groove 16, disturbance is created around tire, and as shown in Figure 15 A and Figure 15 B, the low-pressure section P (region of lower density of air) caused at the rear portion place of the tire T1 with groove 16 can by the low-pressure section P being less than the tire T2 not having groove 16 done, and therefore, because the resistance (power pulled back by tire) of low-pressure section P can only be done little so much, more effectively reduced to enable the air resistance of tire when to run at high speed.At this moment, on the inner side of the Width along vehicle, air draft acceleration effect is produced by projection 11, and reducing effect to enable air resistance is increased synergistically by projection 11 and groove 16.
In this case, groove 16 is arranged in the second area A2 except first area A1, described first area A1 along tire radial direction from inner side within 35% of tire cross-sectional height, can arrange on outside along tire radial direction to make groove 16, on described outside, rotating speed becomes than relatively higher on the inner side along tire radial direction, and telling on to make the disturbance of groove 16 to be increased further.
Each groove 16 is formed as having and is not less than 0.3mm and the degree of depth being not more than 2mm, makes to prevent the degree of depth to become too small and disturbance is told on deficiency and prevent the degree of depth become excessive and increase air resistance.
In addition, each groove 16 is formed as the shape of circle, and diameter is not less than 0.5mm and is not more than 8mm, makes to prevent each groove 16 too small and disturbance is told on deficiency and prevent each groove 16 excessive and add air resistance.
In above-described 4th embodiment, the tire with the groove 16 of the shape being formed as circle is illustrated, but they can be formed as other shapes, such as oval or polygon.In this case, when they have elliptical shape, the long axis of elliptical shape and the diameter being on average set to groove of minor axis, and in polygonal situation, the diameter that the external diameter of the circle of restriction is set to groove is not less than 0.5mm to make diameter become and is not more than 8mm.
In above-described 4th embodiment, tire with the groove 16 with same size is illustrated, but groove can be formed as making position along tire radial direction the closer to outside, specification is larger, as the groove 17 as shown in the 5th embodiment of Figure 12.Particularly, on outside, larger groove 17 is arranged by radially direction, on described outside, rotating speed becomes than radially direction is relatively higher on inner side, disturbance tells on can be increased further and can be suppressed large separation phenomenon further, makes this be very favorable for reduction air resistance.
In addition, in above-described 4th embodiment, the tire with the groove 16 with same depth is illustrated, but, groove can be formed as making position along tire radial direction the closer to outside, and the degree of depth is less, as the groove 18 as shown in the 6th embodiment of Figure 13.Particularly, by arranging the groove 18 with the less degree of depth on outside along tire radial direction, on described outside, rotating speed becomes than relatively higher on inner side along tire radial direction, disturbance tells on can be increased further and can be suppressed large separation phenomenon further, makes this be very favorable for reduction air resistance.
In above-described embodiment, form spherical groove 16 to be illustrated, but, they can be formed as the section shape with quadrangle, groove 19 is as shown in fig. 14 a the same, or can be formed as the shape of the bilayer comprising the different tetragonal section shape of specification, groove 20 is as shown in Figure 14 B the same.
Here, to comparative example 3, fuel efficiency test has been carried out to embodiment 7 and comparative example 1 for embodiments of the invention 1, and has obtained the result shown in Figure 16.In this test, have and be greater than standard-sized lower limit and be used in comparative example 1 in comparative example 3 more than the tire of the external diameter of 6mm, and have and be greater than the tire that standard-sized lower limit is not more than the external diameter of 6mm and be used in embodiment 1 in embodiment 7.In addition, in comparative example 1, have and be greater than standard-sized lower limit and used more than the tire of the overall width of 6mm, and have be greater than tire that standard-sized lower limit is not more than the overall width of 6mm be used in comparative example 2 and comparative example 3 and embodiment 1 in embodiment 7.In addition, in comparative example 1, there is the tire that value (T/S than) is greater than 0.7 used, obtain divided by overall width with tyre surface ground connection width during 60% load when described worthwhile applying normal air pressure and tire are assembled to standard rim, and in comparative example 2 and comparative example 3, having T/S than the tire being less than 0.65 is used, and in embodiment 1 in embodiment 7, there is T/S than be not less than 0.65 and the tire that is not more than 0.7 used.Use in comparative example 1 and do not have bossed tire, be used in comparative example 2 and comparative example 3 and embodiment 1 and embodiment 2 with the tire of the projection with tetragonal section shape, tire with the projection with triangular cross-sectional shape is used in embodiment 3, tire with the projection with chevron is used in embodiment 4 in embodiment 7, and two limits of described chevron define the shape concaved.In this case, in embodiment 5 in embodiment 7, the bossed tire of tool is used, and the width of described projection inwards becomes wider along tire radial direction.In addition, the bossed tire of tool is used in comparative example 2, the maximum height position of described projection is in a longitudinal direction on both ends, and be with bossed tire to be used in comparative example 3, the maximum height position of described projection along tire radial direction on medial end, be with bossed tire to be used in embodiment 1 and embodiment 3 in embodiment 7, the maximum height position of described projection (becomes the part of maxim closer to outside along tire radial direction than overall tire width) in a longitudinal direction on central portion, and be with bossed tire to be used in embodiment 2, the maximum height position of described projection along tire radial direction in outboard end.Be with bossed tire to be used in comparative example 2, the maximum height of described projection is greater than 4mm, and be with bossed tire to be used in comparative example 3 and embodiment 1 in embodiment 7, the maximum height of described projection is not more than 4mm.In addition, tire with the projection be arranged in both side surface along tire width direction is used in comparative example 2 and comparative example 3 and embodiment 1 in embodiment 5, and be used in embodiment 6 and embodiment 7 with the tire being only arranged on the projection that a side surface is arranged along tire width direction, described side surface becomes the inner side of the Width along vehicle when tire is assembled to vehicle.In this case, the tire with the groove being arranged on the circle on another side surface along tire width direction is used in embodiment 7, and another side surface described becomes the outside of the Width along vehicle when tire is assembled to vehicle.In embodiment 7, the reeded tire of tool is used, except arranging described groove the extraneous region along tire radial direction from medial end in 35% of tire cross-sectional height.
In this test, the tire size of 185/65R15 is used, and when this specification, according to JATMA standard, the external diameter of standard is 614mm to 628mm and standard overall width (ETRTO standard is applied to lower limit) is 182mm to 197mm, and according to ETRTO standard, nominal outer diameter is 614mm to 628mm and standard overall width is 182mm to 196mm, and according to TRA standard, nominal outer diameter is 614mm to 628mm and standard overall width is 182mm to 194mm.
In this test, the small passenger car (f-w-d) of 1500cc discharge capacity that the tire with 230kPa air pressure is assembled to (motor is assisted), and consumption of fuel is measured and determined index when the automobile test runway that 10 circle 2km are long with the speeds of 100km/h, and be 100 assess comparative example 2 and comparative example 3 and embodiment 1 to embodiment 7 by limiting comparative example 1.In this case, index is larger, and preceence is higher.Due to the result of test, embodiment 1 is better than comparative example 1 to comparative example 3 to embodiment 7 in fuel efficiency.
As described above, the air-inflation tyre with less raised areas is forward provided.Therefore, the air-flow when running around tire can be accelerated, and air resistance when to run at high speed can be sufficiently decreased, and this is very favorable from the improvement of fuel efficiency.
Although describe above according to embodiments of the invention, the present invention can be not limited to embodiment above-mentioned, but can diversely be revised.Parts disclosed in aforesaid embodiment can suitably combine to form various amendment.Such as, some of disclosed all parts in an embodiment can be removed or be appropriately combined.
For those of skill in the art, additional advantage and amendment will occur easily.Therefore, the present invention of wider aspect can be not limited to the concrete details of shown here and description and representational embodiment.Therefore, when not deviating from the spirit and scope as the total inventive concept by claims and their equivalents, various amendment can be made.
Claims (11)
1. an air-inflation tyre, comprising:
Multiple projection, described multiple projection is arranged on described airtyred tire outer surface, and arranges at interval in tire circumferential direction on described tire outer surface, and described projection extends in the radial direction at tire, and in described tire circumferential direction, there is interval between each projection
Wherein each projection has the height in the scope from 0.5mm to 4mm, and outer position has maximum height compared with the position that described tire is maxim with overall tire width in the radial direction, and
Wherein said air-inflation tyre comprises:
Be assembled to standard rim relative to described air-inflation tyre and be set as falling into the external diameter in the scope from 0mm to 6mm and the overall width except described projection for standard-sized lower limit under the state applying normal air pressure; And
Be set as falling into from the tyre surface ground connection width when 60% load in the scope of 60% to 75% of the overall width except described projection.
2. air-inflation tyre according to claim 1,
Wherein each projection has triangular cross-sectional shape on the direction vertical with described tire radial direction.
3. air-inflation tyre according to claim 2,
Wherein the described triangular cross-sectional shape of each projection has two limits concaved.
4. air-inflation tyre according to claim 1,
Wherein the width of each projection in described tire circumferential direction is set at the inner side place of described tire radial direction wider.
5. air-inflation tyre according to claim 1,
Wherein said projection is only arranged on a side surface of described airtyred described tire width direction, and when described air-inflation tyre is assembled to vehicle, a described side surface becomes the inner side of the Width of described vehicle.
6. air-inflation tyre according to claim 5, also comprises:
Multiple groove, described multiple groove is arranged on a side surface of described airtyred described tire width direction, and when described air-inflation tyre is assembled to vehicle, a described side surface becomes the outside of the Width of described vehicle.
7. air-inflation tyre according to claim 6,
Wherein described groove is set in the region except extend to the region of the position in 35% height of tire cross-sectional height from described airtyred medial end except that outer surface of tire limits.
8. air-inflation tyre according to claim 6,
Wherein said groove type becomes the degree of depth had in the scope from 0.3mm to 2mm.
9. air-inflation tyre according to claim 6,
Wherein said groove type becomes the diameter had in the scope from 0.5mm to 8mm.
10. air-inflation tyre according to claim 6,
Wherein position more becomes towards the described groove type in the outside of described airtyred described tire radial direction and has larger specification.
11. air-inflation tyres according to claim 6,
Wherein position more becomes towards the described groove type in the outside of described airtyred described tire radial direction and has the less degree of depth.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201010531281.5A CN102463851B (en) | 2010-10-29 | 2010-10-29 | Pneumatic tire |
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| CN201010531281.5A CN102463851B (en) | 2010-10-29 | 2010-10-29 | Pneumatic tire |
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| CN102463851A CN102463851A (en) | 2012-05-23 |
| CN102463851B true CN102463851B (en) | 2015-05-27 |
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| CN101448657A (en) * | 2006-05-24 | 2009-06-03 | 横滨橡胶株式会社 | Pneumatic tire |
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| WO2010013453A1 (en) * | 2008-07-31 | 2010-02-04 | 住友ゴム工業株式会社 | Pneumatic tire |
| CN101772430A (en) * | 2007-07-30 | 2010-07-07 | 株式会社普利司通 | Pneumatic tire |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5435369A (en) * | 1992-04-13 | 1995-07-25 | The Goodyear Tire & Rubber Company | Truck tire with split overlay |
| JP4057280B2 (en) * | 2001-11-07 | 2008-03-05 | 住友ゴム工業株式会社 | Pneumatic tire |
| CN101166642A (en) * | 2005-09-13 | 2008-04-23 | 株式会社普利司通 | Pneumatic tire |
| CN101448657A (en) * | 2006-05-24 | 2009-06-03 | 横滨橡胶株式会社 | Pneumatic tire |
| CN101631686A (en) * | 2007-03-12 | 2010-01-20 | 株式会社普利司通 | Pneumatic tire |
| CN101772430A (en) * | 2007-07-30 | 2010-07-07 | 株式会社普利司通 | Pneumatic tire |
| WO2010013453A1 (en) * | 2008-07-31 | 2010-02-04 | 住友ゴム工業株式会社 | Pneumatic tire |
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| CN102463851A (en) | 2012-05-23 |
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