CN102616090B - Pneumatic tire for heavy vehicle - Google Patents
Pneumatic tire for heavy vehicle Download PDFInfo
- Publication number
- CN102616090B CN102616090B CN201210017284.6A CN201210017284A CN102616090B CN 102616090 B CN102616090 B CN 102616090B CN 201210017284 A CN201210017284 A CN 201210017284A CN 102616090 B CN102616090 B CN 102616090B
- Authority
- CN
- China
- Prior art keywords
- tire
- shoulder
- pattern block
- groove
- land portion
- 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.)
- Expired - Fee Related
Links
- 210000003754 fetus Anatomy 0.000 claims abstract description 12
- 230000007547 defect Effects 0.000 abstract description 17
- 238000012360 testing method Methods 0.000 description 5
- 238000005452 bending Methods 0.000 description 3
- 230000000052 comparative effect Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000011156 evaluation Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 230000007423 decrease Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000010363 phase shift Effects 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 230000001953 sensory effect Effects 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
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
- B60C11/03—Tread patterns
- B60C11/13—Tread patterns characterised by the groove cross-section, e.g. for buttressing or preventing stone-trapping
- B60C11/1376—Three dimensional block surfaces departing from the enveloping tread contour
- B60C11/1392—Three dimensional block surfaces departing from the enveloping tread contour with chamfered block edges
-
- 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
- B60C11/01—Shape of the shoulders between tread and sidewall, e.g. rounded, stepped or cantilevered
-
- 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
- B60C11/11—Tread patterns in which the raised area of the pattern consists only of isolated elements, e.g. blocks
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
- B60C11/00—Tyre tread bands; Tread patterns; Anti-skid inserts
- B60C11/03—Tread patterns
- B60C11/12—Tread patterns characterised by the use of narrow slits or incisions, e.g. sipes
- B60C11/1259—Depth of the sipe
-
- 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
- B60C2011/0348—Narrow grooves, i.e. having a width of less than 4 mm
-
- 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
- B60C2011/0339—Grooves
- B60C2011/0341—Circumferential grooves
- B60C2011/0355—Circumferential grooves characterised by depth
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
- B60C11/00—Tyre tread bands; Tread patterns; Anti-skid inserts
- B60C11/03—Tread patterns
- B60C2011/0337—Tread patterns characterised by particular design features of the pattern
- B60C2011/0339—Grooves
- B60C2011/0358—Lateral grooves, i.e. having an angle of 45 to 90 degees to the equatorial plane
- B60C2011/0367—Lateral grooves, i.e. having an angle of 45 to 90 degees to the equatorial plane characterised by depth
- B60C2011/0369—Lateral grooves, i.e. having an angle of 45 to 90 degees to the equatorial plane characterised by depth with varying depth of the groove
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
- B60C11/00—Tyre tread bands; Tread patterns; Anti-skid inserts
- B60C11/03—Tread patterns
- B60C11/12—Tread patterns characterised by the use of narrow slits or incisions, e.g. sipes
- B60C11/1204—Tread patterns characterised by the use of narrow slits or incisions, e.g. sipes with special shape of the sipe
- B60C2011/1209—Tread patterns characterised by the use of narrow slits or incisions, e.g. sipes with special shape of the sipe straight at the tread surface
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Tires In General (AREA)
Abstract
The invention provides a kind of Pneumatic tire for heavy vehicle, rubber defect can be suppressed and improve nibbling energy.Pneumatic tire for heavy vehicle (1) has tap drain (3) and land portion (4) at fetus face (2).Tap drain (3) comprises shoulder main groove (3A).Land portion (4) comprises central land portion (4A) and tire-shoulder land portion (4B).Central land portion (4A) is arranged at intervals with center running lug (7).Tire-shoulder land portion (4B) is formed tire-shoulder auxiliary groove (9) and tire-shoulder transverse groove (10).Tire-shoulder auxiliary groove (9) comprises external shoulder counter drain (9A) and inner side tire-shoulder auxiliary groove (9B).Tire-shoulder transverse groove (10) comprises inside portion (10A), pars intermedia (10B) and outside portion (10C).Tire-shoulder land portion (4B) is arranged at intervals with inner side pattern block on tire shoulder row (11A), middle pattern block on tire shoulder row (11B) and external shoulder pattern block row (11C) thus.Inside portion (10A), pars intermedia (10B) and outside portion (10C) every establish spacing (P2) be less than central transverse (6) every establishing spacing (P1).
Description
Technical field
The present invention relates to and suppress rubber defect and the Pneumatic tire for heavy vehicle that can improve nibbling energy.
Background technology
Generally, use under the condition of Pneumatic tire for heavy vehicle pressure and top load in height, therefore such as the bracing ply of the multiple-structure employing metal cords is arranged at fetus face to improve the rigidity of fetus face entirety.
Such Pneumatic tire for heavy vehicle, the shoulder zone of fetus face fully cannot absorb impact when colliding with rut, thus existence easily occurs, and bearing circle heavy handled is so-called sails phenomenon partially.
Particularly in recent years in Pneumatic tire for heavy vehicle, increase the so-called wide tyre surface development that tyre surface ground connection width improves wear-out life.There is the tendency that the nibbling of Pneumatic tire for heavy vehicle can be worsened in this wide tyre surfaceization.
Partially phenomenon is sailed in order to suppress such, such as propose there is following Pneumatic tire for heavy vehicle: by arranging the rill extended along tire circumference in tyre surface ground connection side, the rigidity of the tire axial of shoulder zone can be reduced thus, and the impact (for example, referring to following patent documentation 1) that can absorb when colliding with rut.
Patent documentation 1: Japanese Unexamined Patent Publication 2003-341305 publication
But, although above-mentioned such Pneumatic tire for heavy vehicle improves a part of nibbling energy, also there is further room for improvement.
Further, because the rigidity of the pattern block between rill and tyre surface ground terminal or pattern rib is too small, therefore also there is the problem that the rubber defect of the rubber defect being easy to generation pattern block or pattern rib is such in the above-mentioned fetus face being provided with rill like this.
Summary of the invention
The present invention proposes in view of actual conditions such above, and its main purpose is to provide one can suppress rubber defect etc., and can improve nibbling can Pneumatic tire for heavy vehicle.
The invention described in technical scheme 1 in the present invention is a kind of Pneumatic tire for heavy vehicle, this Pneumatic tire for heavy vehicle has many tap drains extended continuously along tire circumference at fetus face, with the multiple land portion divided by this tap drain, the feature of this Pneumatic tire for heavy vehicle is, described tap drain comprises: be configured in a pair shoulder main groove leaning on tyre surface ground connection side most, described land portion comprises: the central land portion between described shoulder main groove, with the tire-shoulder land portion outside the tire axial of described shoulder main groove, described central land portion forms at least one center running lug row, this center running lug row arrange by the center running lug divided along spaced many central transverse of tire circumference along tire circumference interval, formed in described tire-shoulder land portion: many tire-shoulder auxiliary groove, they extend along tire circumference continuously with the ditch width less than described shoulder main groove, many tire-shoulder auxiliary groove, they extend along tire circumference continuously with the ditch width less than described shoulder main groove, described tire-shoulder auxiliary groove comprises: the external shoulder counter drain leaning on tyre surface ground connection side most, and the inner side tire-shoulder auxiliary groove between this external shoulder counter drain and described shoulder main groove, and described tire-shoulder transverse groove comprises: the inside portion extended between described shoulder main groove and described inner side tire-shoulder auxiliary groove, the pars intermedia extended between described inner side tire-shoulder auxiliary groove and described external shoulder counter drain, and the outside portion extended between outside tire-shoulder auxiliary groove and tyre surface ground terminal, described tire-shoulder land portion comprises thus: inner side pattern block on tire shoulder arranges, inside this, pattern block on tire shoulder row are by by described shoulder main groove, the inner side pattern block on tire shoulder that the inside portion of described inner side tire-shoulder auxiliary groove and described tire-shoulder transverse groove divides is arranged along tire circumference interval, middle pattern block on tire shoulder row, these middle pattern block on tire shoulder row are that the middle pattern block on tire shoulder divided by the pars intermedia by described inner side tire-shoulder auxiliary groove, described external shoulder counter drain and described tire-shoulder transverse groove is arranged along tire circumference interval, and external shoulder pattern block row, this external shoulder pattern block row are external shoulder pattern blocks of being divided the outside portion by described external shoulder counter drain, described tyre surface ground terminal and described tire-shoulder transverse groove along the interval setting of tire circumference, each tire circumference of the inside portion of described tire-shoulder transverse groove, pars intermedia and outside portion every establish spacing be less than the tire circumference of described central transverse every establishing spacing.
Further, the invention described in technical scheme 2 is on the basis of the Pneumatic tire for heavy vehicle described in technical scheme 1, and described external shoulder counter drain is larger and less than the trench depth of described inner side tire-shoulder auxiliary groove than the ditch width of described inner side tire-shoulder auxiliary groove.
And, invention described in technical scheme 3 is on the basis of the Pneumatic tire for heavy vehicle described in technical scheme 1 or 2, and the width W 3 of the width W 1 of the tire axial of described inner side pattern block on tire shoulder, the width W 2 of the tire axial of described middle pattern block on tire shoulder and the tire axial of described external shoulder pattern block meets following relation:
W1＞W2＞W3。
Further, the invention described in technical scheme 4 is on the basis of Pneumatic tire for heavy vehicle described any one of technical scheme 1 to 3, and described tire-shoulder transverse groove is configured to: described inside portion and described pars intermedia stagger phase place in tire circumference.
And, invention described in technical scheme 5 is on the basis of Pneumatic tire for heavy vehicle described any one of technical scheme 1 to 4, and described tire-shoulder transverse groove is configured to: described pars intermedia and described outside portion are continuous on tire axial via described external shoulder counter drain.
Further, the invention described in technical scheme 6 is on the basis of the Pneumatic tire for heavy vehicle described in technical scheme 5, and the ditch width of the described outside portion of described tire-shoulder transverse groove is greater than the ditch width of described pars intermedia.
Further, the invention described in technical scheme 7 is on the basis of Pneumatic tire for heavy vehicle described any one of technical scheme 1 to 6, and the trench depth of described tire-shoulder transverse groove increases from described pars intermedia towards described outside portion.
And, invention described in technical scheme 8 is on the basis of Pneumatic tire for heavy vehicle described any one of technical scheme 1 to 7, and described external shoulder pattern block arranges chamfering at the corner part that the pattern block tread of this external shoulder pattern block and the outside face of sidewall portions are formed.
In addition, if in this manual without special declaration, then the size in each for tire portion is set to wheel rim and is assembled in regular wheel rim and the value determined under being filled with the uncharge normal state of regular interior pressure.
Described " regular wheel rim " to refer in the schematism of the specification comprising tire institute foundation according to each tire to specify the wheel rim of this specification, if such as JATMA then represents standard rim, if TRA then represents " DesignRim ", if or ETRTO then represent " MeasuringRim ".
Described " regular interior pressure " refers to according to each tire to specify the air pressure of described specification, if JATMA is then " most anticyclonic pressure ", if TRA is then maxim described in table " TIRELOADLIMITSATVARIOUSCOLDINFLATIONPRESSURES ", if ETRTO is then " INFLATIONPRESSURE ".
Pneumatic tire for heavy vehicle of the present invention, has many tap drains extended continuously along tire circumference and the multiple land portion utilizing this tap drain to divide at fetus face.Tap drain comprises a pair shoulder main groove being configured in and leaning on tyre surface ground connection side most.Further, land portion comprises the tire-shoulder land portion outside the tire axial of central land portion between shoulder main groove and shoulder main groove.
Central land portion is formed with at least one center running lug and arranges, and this center running lug row form by the center running lug divided along spaced many central transverse of tire circumference along the interval setting of tire circumference.On the other hand, in tire-shoulder land, portion is formed: many tire-shoulder auxiliary groove, and they extend along tire circumference continuously with the ditch width less than shoulder main groove; Many tire-shoulder transverse groove, their along and the crossing direction of above-mentioned tire-shoulder auxiliary groove extend and arrange along the circumferential interval of tire.
Tire-shoulder auxiliary groove comprises: the external shoulder counter drain leaning on tyre surface ground connection side most; And the inner side tire-shoulder auxiliary groove between this external shoulder counter drain and described shoulder main groove.And tire-shoulder transverse groove comprises: the inside portion extended between shoulder main groove and inner side tire-shoulder auxiliary groove; The pars intermedia extended between inner side tire-shoulder auxiliary groove and external shoulder counter drain; And the outside portion extended between outside tire-shoulder auxiliary groove and tyre surface ground terminal.
Tire-shoulder land portion comprises thus: inner side pattern block on tire shoulder arranges, and inside this, pattern block on tire shoulder row are that the inner side pattern block on tire shoulder divided the inside portion by shoulder main groove, described inner side tire-shoulder auxiliary groove and tire-shoulder transverse groove forms along the interval setting of tire circumference; Middle pattern block on tire shoulder row, these middle pattern block on tire shoulder row are that the middle pattern block on tire shoulder divided by the pars intermedia by inner side tire-shoulder auxiliary groove, described external shoulder counter drain and described tire-shoulder transverse groove forms along the interval setting of tire circumference; And external shoulder pattern block row, this external shoulder pattern block row are that the external shoulder pattern block divided the outside portion by external shoulder counter drain, tyre surface ground terminal and tire-shoulder transverse groove forms along the interval setting of tire circumference.
And then, each tire circumference of the inside portion of tire-shoulder transverse groove, pars intermedia and outside portion every establish spacing be set to be less than the tire circumference of central transverse every establishing spacing.
Like this, because the tire-shoulder land portion of Pneumatic tire for heavy vehicle of the present invention is divided into: inner side pattern block on tire shoulder row, middle pattern block on tire shoulder row and external shoulder pattern block row, and each tire axial of the inside portion of tire-shoulder transverse groove, pars intermedia and outside portion every establish spacing be set to be less than the tire circumference of central transverse every establishing spacing, thus the rigidity in tire-shoulder land portion reduces.Therefore, tire-shoulder land portion flexibly can bend the impact absorbing the tire axial produced when colliding with rut, thus can improve nibbling energy.
Further, the rigidity in tire-shoulder land portion spreads all over owing to being provided with many counter drains and integrally reduces equably, therefore, it is possible to suppress in the past such rubber defect.
Especially, in Pneumatic tire for heavy vehicle of the present invention, due to the inside portion of tire-shoulder transverse groove, pars intermedia and outside portion each tire circumference every establish spacing be set to be less than the tire circumference of central transverse every establishing spacing, therefore by the flexibly bending impact that can also absorb tire circumference, thus nibbling energy can be improved.On the other hand, because central land portion maintains its rigid circumference, therefore, it is possible to suppress the reduction of craspedodrome stability and road-holding property.
Accompanying drawing explanation
Fig. 1 is the tyre surface expansion drawing of the Pneumatic tire for heavy vehicle of present embodiment.
Fig. 2 is the A-A cutaway view of Fig. 1.
Fig. 3 amplifies the local expansion figure that the central land portion of Fig. 1 is shown.
Fig. 4 amplifies the local expansion figure that the tire-shoulder land portion of Fig. 1 is shown.
Fig. 5 amplifies the cutaway view that the external shoulder pattern block collided with rut is shown.
Fig. 6 is the tyre surface expansion drawing of the Pneumatic tire for heavy vehicle of comparative example.
Drawing reference numeral illustrates:
1... Pneumatic tire for heavy vehicle; 2... fetus face; 3... tap drain; 4... land portion; 4A... central land portion; 4B... tire-shoulder land portion; 6... central transverse; 7... center running lug; 8... center running lug row; 9... tire-shoulder auxiliary groove; 10... tire-shoulder transverse groove; Pattern block on tire shoulder inside 11A...; Pattern block on tire shoulder in the middle of 11B...; 11C... external shoulder pattern block; Pattern block on tire shoulder row inside 12A...; Pattern block on tire shoulder row in the middle of 12B...; 12C... external shoulder pattern block arranges.
Detailed description of the invention
Based on accompanying drawing, an embodiment of the invention are described below.
As shown in Figure 1, 2, the Pneumatic tire for heavy vehicle (below sometimes referred to as " tire ") 1 of present embodiment has many tap drains 3 extended continuously along tire circumference and the multiple land portion 4 utilizing this tap drain 3 to divide at fetus face 2, such as, show the studless tire of the load-carrying vehicle such as lorry, motorcoach.
Described tap drain 3 comprises a pair shoulder main groove 3A, the 3A that are configured in and lean on tyre surface ground terminal 2e side most.Thus, described land portion 4 is divided into: tire-shoulder land portion 4B, 4B outside the central land portion 4A between shoulder main groove 3A, 3A and the tire axial of shoulder main groove 3A.
Described shoulder main groove 3A is such as formed as the straight flute extended continuously along tire circumference.Because the moisture film between road surface and the tread of fetus face 2 can guide along tire circumference by such shoulder main groove 3A swimmingly, and can by snow compacting and obtain larger snow post shear strength effectively in ditch, therefore, it is possible to improve drainage performance and snow performance.Preferably, the ditch width E1 of shoulder main groove 3A is the distance of 1/2 of tread width TW that is about 5% ~ 8%, trench depth D1 of tyre surface one half width 0.5TW is about 16% ~ 19% of tyre surface one half width 0.5TW.
Herein, described tread width TW is set to the tire axial distance between tyre surface ground terminal 2e, 2e under described normal state.In addition, when from when can be identified by clear and definite edge in appearance, this tyre surface ground terminal 2e is this edge, when None-identified, regular load will be loaded to the tire under normal state and make fetus face 2 ground connection be defined as tyre surface ground terminal 2e for the ground terminal being plane by ground connection outside tire axial during plane with 0 ° of camber angle.
Described " regular load " to refer in the schematism of the specification comprising tire institute foundation according to each tire to specify the load of each specification, if JATMA then refers to maximum load capability, if TRA then refers to show maxim described in " TIRELOADLIMITSATVARIOUSCOLDINFLATIONPRESSURES ", if ETRTO then refers to " LOADCAPACITY ".
Be formed at the central land portion 4A of present embodiment: many central counter drains 5, they extend along tire circumference continuously with the ditch width less than shoulder main groove 3A; Many central transverse 6, their along and the crossing direction of described central counter drain 5 extend and arrange along the circumferential interval of tire.Thus, central land portion 4A forms multiple center running lug row 8, and the plurality of center running lug row 8 are arranged along tire circumference interval by the center running lug 7 divided by many central counter drains 5 and many central transverse 6 to form.
Described central counter drain 5 comprises: the inner central counter drain 5A extended on tire equator C and be configured in pair of outside central authorities counter drain 5B, 5B of tire axial both sides of this inner central counter drain 5A.Inside these, outside central authorities counter drain 5A, 5B is also same with shoulder main groove 3A is formed as along tire circumference continuous print straight flute.
Such inner side, outside central authorities counter drain 5A, 5B can guarantee the rigidity of central land portion 4A and can improve drainage performance and snow performance.Preferably, the ditch width E2 of inner side, outside central authorities counter drain 5A, 5B is about 1% ~ 3%, trench depth D2 of tyre surface one half width 0.5TW is about 8% ~ 12% of tyre surface one half width 0.5TW.
Described central transverse 6 comprises: the inner central traverse furrow 6A extended between inner central counter drain 5A and outside central authorities counter drain 5B and the outside central transverse 6B extended between outside central authorities counter drain 5B and shoulder main groove 3A.
Because the moisture film between central land portion 4A and road surface can guide along tire axial by such inner side, outside central transverse 6A, 6B swimmingly, and snow post shear strength can be obtained, therefore contribute to improving drainage performance and snow performance.Preferably, the ditch width E3 of inner side, outside central transverse 6A, 6B is about 4% ~ 6%, trench depth D3 of tyre surface one half width 0.5TW is about 10% ~ 15% of tyre surface one half width 0.5TW.
As shown in Fig. 3 amplifies, the inner side of present embodiment, outside central transverse 6A, 6B, such as respective tire circumference identical every establishing spacing P1, P1 to be set in fact, and roughly zig-zag is configured to staggering phase place in tire circumference.Such inner side, outside central transverse 6A, 6B contribute to the spacing noise in traveling is disperseed.In addition, this substantially identically comprises spacing change based on variable spacing method etc. and manufacturing errors etc.Further, every establishing spacing P1 to be the value determined with ditch line of centers 6Ac, 6Bc of inner side, outside central transverse 6A, 6B.
As shown in Figure 1, center running lug row 8 comprise: pair of inside center running lug row 8A, and they are arranged along tire circumference interval by the inner central pattern block 7A divided by inner central counter drain 5A, outside central authorities counter drain 5B and inner central traverse furrow 6A to form; Pair of outside center running lug row 8B, they are arranged along tire circumference interval by the outside center running lug 7B divided by outside central authorities counter drain 5B, shoulder main groove 3A and outside central transverse 6B to form.
As shown in Figure 3, described inner central pattern block 7A and described outside center running lug 7B is formed as circumferential lengths C1 to be greater than the lengthwise of the width B 1 of tire axial rectangular-shaped.Such inner side, outside center running lug 7A, 7B can improve the rigidity of tire circumference and can improve tractive property and anti-irregular wear performance.Preferably, described width B 1 is about 18% ~ 22%, described circumferential lengths C1 of tyre surface one half width 0.5TW (shown in Fig. 1) is about 26% ~ 32% of tyre surface one half width 0.5TW.
Further, the pattern block tread of inner side, outside center running lug 7A, 7B is respectively arranged with two tire sipe S, S extended along tire axial.Such tire sipe S can make its marginal element play a role and increase the friction force between ice road surface, thus improves performance on ice.
And then, inner side, outside center running lug 7A, 7B due to the central transverse 6A in inner side, outside, the phase shift of 6B and be configured to roughly zig-zag with staggering phase place with adjacent inner side, outside center running lug 7A, 7B on tire axial in tire circumference.Such inner side, outside center running lug 7A, 7B make the marginal element of its marginal element or tire sipe S balancedly disperse in tire circumference, thus can increase the friction force between ice road surface.
As shown in Figure 1, 2, described tire-shoulder land portion 4B is formed: many tire-shoulder auxiliary groove 9, they extend along tire circumference continuously with the ditch width less than shoulder main groove 3A; Many tire-shoulder transverse groove 10, their along and the crossing direction of above-mentioned tire-shoulder auxiliary groove 9 extend and arrange along the circumferential interval of tire.
Described tire-shoulder auxiliary groove 9 comprises: be configured in the external shoulder counter drain 9A leaning on tyre surface ground terminal 2e the side most and inner side tire-shoulder auxiliary groove 9B be configured between this external shoulder counter drain 9A and shoulder main groove 3A.Outside these, inner side tire-shoulder auxiliary groove 9A, 9B are also same with shoulder main groove 3A is formed as along tire circumference continuous print straight flute, thus contribute to guaranteeing the rigidity of tire-shoulder land portion 4B and improve drainage performance and snow performance.Preferably, the ditch width E4 of outside, inner side tire-shoulder auxiliary groove 9A, 9B is about 1% ~ 3%, trench depth D4 of tyre surface one half width 0.5TW is about 8% ~ 10% of tyre surface one half width 0.5TW.
Further, described tire-shoulder transverse groove 10 comprises: the inside portion 10A extended between shoulder main groove 3A and inner side tire-shoulder auxiliary groove 9B, the pars intermedia 10B extended between inner side tire-shoulder auxiliary groove 9B and external shoulder counter drain 9A and the outside portion 10C extended between outside tire-shoulder auxiliary groove 9A and tyre surface ground terminal 2e.
Because the moisture film between road surface and tire-shoulder land portion 4B can be discharged along tire axial via each counter drain 9A, 9B by such inside portion 10A, pars intermedia 10B and outside portion 10C, and snow post shear strength can be obtained, therefore contribute to improving drainage performance and snow performance.Preferably, the ditch width E5 of inside portion 10A, pars intermedia 10B and outside portion 10C is about 3% ~ 5%, trench depth D5 of tyre surface one half width 0.5TW is about 10% ~ 15% of tyre surface one half width 0.5TW.
As shown in Fig. 4 amplifies, inside portion 10A, pars intermedia 10B and outside portion 10C, such as respective tire circumference identical every establishing spacing P2 to be set in fact.In addition, this is substantial identical and above-mentioned every establishing the spacing comprised in the same manner as spacing P1 based on variable spacing method etc. to change and manufacturing errors etc.Further, every establishing spacing P2 to be the value determined with each ditch line of centers 10Ac, 10Bc and 10Cc of inside portion 10A, pars intermedia 10B and outside portion 10C.
In addition, the inside portion 10A of present embodiment and pars intermedia 10B is configured to roughly zig-zag with staggering phase place in tire circumference.Such inside portion 10A and pars intermedia 10B also makes the spacing noise in traveling disperse with inner side, outside central transverse 6A, 6B same contributing to.
On the other hand, pars intermedia 10B and outside portion 10C configures on tire axial continuously via external shoulder counter drain 9A.In the present embodiment, make in fact respective ditch line of centers 10Bc, 10Cc consistent in tire circumference.Such pars intermedia 10B and outside portion 10C contributes to the moisture film between tire-shoulder land portion 4B and road surface to discharge swimmingly to tyre surface ground terminal 2e side.
In this case, the ditch width E5c of preferred outside portion 10C is greater than the ditch width E5b of pars intermedia 10B.Thus, described moisture film can be discharged from pars intermedia 10B to outside portion 10C towards tyre surface ground terminal 2e side by tire-shoulder land portion 4B.
As shown in Figure 1, tire-shoulder land portion 4B comprises: inner side pattern block on tire shoulder row 12A, and inside this, the inner side pattern block on tire shoulder 11A divided by shoulder main groove 3A, inner side tire-shoulder auxiliary groove 9B and inside portion 10A arranges along tire circumference interval to form by pattern block on tire shoulder row 12A; The middle pattern block on tire shoulder 11B divided by inner side tire-shoulder auxiliary groove 9B, external shoulder counter drain 9A and pars intermedia 10B arranges along tire circumference interval to form by middle pattern block on tire shoulder row 12B, this middle pattern block on tire shoulder row 12B; The external shoulder pattern block 11C divided by external shoulder counter drain 9A, tyre surface ground terminal 2e and outside portion 10C arranges along tire circumference interval to form by external shoulder pattern block row 12C, these external shoulder pattern block row 12C.
Like this, tire-shoulder land portion 4B is divided into three parts by inner side pattern block on tire shoulder row 12A, middle pattern block on tire shoulder row 12B and external shoulder pattern block row 12C in the direction of the width, thus its rigidity can be made to reduce equably on tire axial.Such tire-shoulder land portion 4B due to inner side pattern block on tire shoulder 11A, middle pattern block on tire shoulder 11B and external shoulder pattern block 11C flexibly bending and the impact of the tire axial produced when this tire-shoulder land portion 4B and rut collide can be absorbed on tire axial, even such as increase the tire that tread width TW improves the so-called wide tyre surface of wear-out life, also nibbling energy can be improved.
Further, the rigidity of tire-shoulder land portion 4B reduces on tire axial equably because being provided with many counter drains 9A, 9B, therefore, it is possible to the rubber defect effectively suppressing the frequent rigidity because of tire-shoulder land portion 4B to reduce partly as in the past and produce.
And then, in the present embodiment, as shown in Figures 3 and 4, inside portion 10A, pars intermedia 10B and outside portion 10C every establish spacing P2 be set to be less than each central transverse 6A, 6B every establishing spacing P1.Thus, due to tire-shoulder land portion 4B can make inner side, middle and external shoulder pattern block 11A, 11B and 11C rigid circumference is less than central land portion 4A inner side, outside center running lug 7A, 7B, the impact of the tire axial produced when therefore can not only absorb and collide with rut because of flexibly bending, the impact of tire circumference can also be absorbed, thus nibbling energy can be improved further.
On the other hand, because central land portion 4A maintains the rigid circumference of inner side, outside center running lug 7A, 7B, therefore, it is possible to suppress the reduction of road-holding property or the rubber defect of central land portion 4A.
In addition, if tire-shoulder transverse groove 10 every establishing spacing P2 to increase, then likely fully cannot improve above-mentioned such nibbling energy.On the contrary, if every establishing spacing P2 too small, then the rigidity of tire-shoulder land portion 4B is too small, thus likely causes reduction or the rubber defect of road-holding property.According to such viewpoint, every establish spacing P2 be preferably each central transverse 6 every establishing less than 80% of spacing P1, be more preferably less than 70%, and every establish spacing P2 be preferably every establishing more than 50% of spacing P1, be more preferably more than 60%.
And then, if the number of the tire circumference of each inside portion 10A, pars intermedia 10B and outside portion 10C is few, then likely fully cannot improve above-mentioned such nibbling energy.On the contrary, even if described number is many, also likely cause decline or the rubber defect of road-holding property.According to such viewpoint, number is preferably more than 60, is more preferably more than 100, and number is preferably less than 150, is more preferably less than 130.
And as shown in Figure 2, the trench depth D5 of tire-shoulder transverse groove 10 preferably increases (D5b < D5c) from the outside sidepiece 10C of pars intermedia 10B.Thus, because tire-shoulder land portion 4B makes the rigidity being easy to be subject to from rut the tyre surface ground terminal 2e side of huge impact effectively reduce, therefore, it is possible to improve nibbling energy.
And then as shown in Figure 4, the ditch width E4a of described external shoulder counter drain 9A is preferably greater than the ditch width E4b of described inner side tire-shoulder auxiliary groove 9B.Thus, because tire-shoulder land portion 4B can not make its rigidity excessively reduce, and the external shoulder pattern block 11C being easy to be subject to from rut huge impact can be made effectively to bend inside tire axial, therefore, it is possible to improve nibbling energy further.
In addition, if the ditch width E4a of external shoulder counter drain 9A reduces, then likely effect as described above cannot effectively be played.On the contrary, if ditch width E4a excessively increases, then likely make the rigidity of tire-shoulder land portion 4B excessively reduce, thus cause reduction and the rubber defect of road-holding property.According to such viewpoint, described ditch width E4a is preferably more than 110% of the ditch width E4b of inner side tire-shoulder auxiliary groove 9B, be more preferably more than 150%, and described ditch width E4a is preferably less than 150% of ditch width E4b, is more preferably less than 220%.
On the other hand, as shown in Figure 2, the trench depth D4a of external shoulder counter drain 9A is preferably set to the trench depth D4b being less than inner side tire-shoulder auxiliary groove 9B.Thus, tire-shoulder land portion 4B excessively can reduce to suppress its rigidity by the external shoulder counter drain 9A being formed as wide cut, thus can keep road-holding property and suppress rubber defect.
In addition, if the trench depth D4a of external shoulder counter drain 9A increases, then likely effect as described above cannot effectively be played.On the contrary, if described trench depth D4a excessively reduces, then external shoulder pattern block 11C likely cannot be made to bend fully, thus nibbling energy cannot be improved.According to such viewpoint, described trench depth D4a is preferably less than 99% of the trench depth D4b of inner side tire-shoulder auxiliary groove 9B, and preferred described trench depth D4a is more than 80% of trench depth D4b, is more preferably more than 90%.
As shown in Figure 4, it is rectangular-shaped that the width W 1 that described inner side pattern block on tire shoulder 11A is formed as tire axial is greater than growing crosswise of circumferential lengths L1.Such inner side pattern block on tire shoulder 11A can improve the rigidity of tire axial, and can improve control stability and improve polishing machine significantly.The width W 1 of inner side pattern block on tire shoulder 11A is preferably about 20% ~ 30%, circumferential lengths L1 of tyre surface one half width 0.5TW (shown in Fig. 1) and is preferably about 15% ~ 20% of tyre surface one half width 0.5TW.
It is rectangular-shaped slightly larger than the lengthwise of the width W 2 of tire axial that described middle pattern block 11B is formed as circumferential lengths L2.Middle pattern block on tire shoulder 11B like this can increase the marginal element extended along tire circumference, thus contributes to improving ice snow performance and anti-irregular wear performance.And then because middle pattern block on tire shoulder 11B can make the rigidity of tire axial reduce, the impact therefore for the tire axial produced when colliding with rut also can flexibly bend, thus can effectively improve nibbling energy.The width W 2 of middle pattern block on tire shoulder 11B is preferably about 10% ~ 20%, circumferential lengths L2 of tyre surface one half width 0.5TW (shown in Fig. 1) and is preferably about 10% ~ 20% of tyre surface one half width 0.5TW.
Described external shoulder pattern block 11C is formed as circumferential lengths L3, and to be greater than the lengthwise of the width W 3 of tire axial rectangular-shaped, thus contribute to improving ice snow performance and anti-irregular wear performance.And then, because external shoulder pattern block 11C can make the rigidity of tire axial reduce, therefore, it is possible to effectively improve nibbling energy.The width W 3 of external shoulder pattern block 11C is preferably about 3% ~ 6%, circumferential lengths L3 of tyre surface one half width 0.5TW (shown in Fig. 1) and is preferably about 10% ~ 20% of tyre surface one half width 0.5TW.
Further, the width W 3 of the width W 1 of inner side pattern block on tire shoulder 11A, the width W 2 of middle pattern block on tire shoulder 11B and external shoulder pattern block 11C preferably meets following relation:
W1＞W2＞W3。
Because such tire-shoulder land portion 4B makes the rigidity of the tire axial of each pattern block on tire shoulder 11A, 11B and 11C reduce gradually outside the easy tire axial being subject to huge impact from rut, therefore the rigidity of this tire-shoulder land portion 4B can not be made excessively to reduce, thus nibbling energy can be improved.
And then the circumferential lengths L3 of the circumferential lengths L1 of inner side pattern block on tire shoulder 11A, the circumferential lengths L2 of middle pattern block on tire shoulder 11B and external shoulder pattern block 11C preferably meets following relation:
L1＞L2＞L3。
Because such tire-shoulder land portion 4B makes the rigid circumference of each pattern block on tire shoulder 11A, 11B and 11C reduce gradually outside tire axial, the rigidity of this tire-shoulder land portion 4B therefore can not be made excessively to reduce, thus nibbling energy can be improved.
Further, the pattern block tread of inner side, middle pattern block on tire shoulder 11A, 11B arranges tire sipe S respectively that extend along tire axial, thus performance on ice can be improved.In the present embodiment, inner side pattern block on tire shoulder 11A arranges two tire sipe S, and a tire sipe S is set on middle pattern block on tire shoulder 11B, and tire sipe S is not set on the pattern block on tire shoulder 11C of outside.Thus, due to middle, that external shoulder pattern block 11B, 11C inhibit pattern block rigidity excessive reduction, therefore, it is possible to keep nibbling energy and suppress rubber defect.
And then inner side, middle pattern block on tire shoulder 11A, 11B make phase place be configured to roughly zig-zag with staggering in tire circumference due to the staggering of phase place of inside portion 10A, pars intermedia 10B.Such inner side, middle pattern block on tire shoulder 11A, 11B contribute to the effect of the marginal element balancedly playing its marginal element or tire sipe S.
On the other hand, middle, external shoulder pattern block 11B, 11C are by configuring pars intermedia 10B and outside portion 10C continuously and along tire axial and row arrangement along tire axial.Because such centre, external shoulder pattern block 11B, 11C can make their marginal element roughly continuous along tire axial, therefore, it is possible to improve performance on ice.
As shown in Figure 2, preferably on the pattern block on tire shoulder 11C of outside chamfering 16 is set at the corner part 15 that its pattern block tread 13 and the outside face of sidewall portions 14 are formed.Such chamfering 16 can suppress the rubber defect of corner part 15 effectively, and as shown in Figure 5, owing to being subject to the power F1 of the tire radial direction being acted on external shoulder pattern block 11C by rut 17, and make this external shoulder pattern block 11C be out of shape inside tire axial and avoid F1, therefore, it is possible to effectively improve nibbling energy.
In addition, if chamfering 16 is less relative to the angle [alpha] 1 of tire radial direction, then due to radial close to tire, is therefore subject to described power F1 and external shoulder pattern block 11C likely cannot be made to be out of shape inside tire axial.On the contrary, even if described angle [alpha] 1 is comparatively large, owing to being subject to power F1 with subvertical angle, external shoulder pattern block 11C is therefore likely made to be out of shape inside tire axial and power F1 cannot to be avoided fully.According to such viewpoint, described angle [alpha] 1 is preferably more than 27 °, is more preferably more than 32 °, and described angle [alpha] 1 is preferably less than 45 °, is more preferably less than 40 °.
Although describe in detail the particularly preferred embodiment of the present invention above, the present invention is not limited to graphic embodiment, but can be deformed into various mode to implement.
Embodiment
Manufacture and be formed as the basic structure shown in Fig. 1 and the tire with the tire-shoulder land portion shown in table 1, and their performance has been evaluated.Further, as a comparison, also carried out same evaluation to the tire (comparative example 4) with the tire-shoulder land portion shown in Fig. 6.Wherein, common specification is as follows.
Tire size: 11R22.5
Rim size: 22.5 × 7.50
Tyre surface one half width 0.5TW:121mm
Shoulder main groove:
Ditch width E1:7.9mm
Trench depth D1:20.6mm
Than (E1/0.5TW): 6.53%
Than (D1/0.5TW): 17.02%
Inner side, outside central authorities counter drain:
Ditch width E2:2.0mm
Trench depth D2:12.0mm
Than (E2/0.5TW): 1.7%
Than (D2/0.5TW): 9.9%
Inner side, outside central transverse:
Ditch width E3:6.2mm
Trench depth D3:14.5mm
Than (E3/0.5TW): 5.12%
Than (D3/0.5TW): 12.0%
Inner side, outside center running lug:
Width B 1:25.2mm
Circumferential lengths C1:35.3mm
Than (B1/0.5TW): 20.83%
Than (C1/0.5TW): 29.17%
Inside portion
Ditch width E5a:4.6mm
Trench depth D5a:15.0mm
Than (E5a/0.5TW): 3.8%
Than (D5a/0.5TW): 12.4%
The number of tire circumference: 120
Test method is as follows.
< nibbling energy, road-holding property >
Each testing tire wheel rim is assembled in above-mentioned wheel rim and is installed on whole wheels of the 2-D car of 8.5 tons of load carrying abilities after pressure 800kPa in filling, and then travel on the anti-treadway payment partially sailing test under complete vehicle curb condition, according to the sensory evaluation of chaufeur, vehicle kept straight in rut, enter the movement (nibbling energy) such as rut, disengaging rut and road-holding property is evaluated.The scoring that comparative example 1 is set to 100 is carried out evaluation result, and numerical value is the bigger the better.
The number > of < rubber defect
Under these conditions wheel rim assembling carried out to each testing tire and be installed on whole wheels of above-mentioned vehicle, and then make vehicle travel till the tire sipe being arranged at each pattern block disappears, and then by the visual number confirming the rubber defect in central land portion and tire-shoulder land portion.
Test result is shown in table 1.
Table 1
The tire of the results verification embodiment of test can suppress rubber defect and can improve nibbling energy.
Claims (7)
1. a Pneumatic tire for heavy vehicle, this Pneumatic tire for heavy vehicle has many tap drains extended continuously along tire circumference and the multiple land portion divided by this tap drain at fetus face, and the feature of this Pneumatic tire for heavy vehicle is,
Described tap drain comprises: be configured in a pair shoulder main groove leaning on tyre surface ground connection side most,
Described land portion comprises: the tire-shoulder land portion outside the central land portion between described shoulder main groove and the tire axial of described shoulder main groove,
Described central land portion forms at least one center running lug row, and this center running lug row arrange by the center running lug divided along spaced many central transverse of tire circumference along tire circumference interval,
Formed in described tire-shoulder land portion: many tire-shoulder auxiliary groove, they extend along tire circumference continuously with the ditch width less than described shoulder main groove; Many tire-shoulder transverse groove, their along and the crossing direction of described tire-shoulder auxiliary groove extend and arrange along the circumferential interval of tire,
Described tire-shoulder auxiliary groove comprises: by the external shoulder counter drain of tyre surface ground connection side and the inner side tire-shoulder auxiliary groove between this external shoulder counter drain and described shoulder main groove, and
Described tire-shoulder transverse groove comprises: the inside portion extended between described shoulder main groove and described inner side tire-shoulder auxiliary groove, the pars intermedia extended between described inner side tire-shoulder auxiliary groove and described external shoulder counter drain and the outside portion extended between outside tire-shoulder auxiliary groove and tyre surface ground terminal, thus
Described tire-shoulder land portion comprises:
Inner side pattern block on tire shoulder row, inside this, pattern block on tire shoulder row are that the inner side pattern block on tire shoulder divided the inside portion by described shoulder main groove, described inner side tire-shoulder auxiliary groove and described tire-shoulder transverse groove is arranged along tire circumference interval;
Middle pattern block on tire shoulder row, these middle pattern block on tire shoulder row are that the middle pattern block on tire shoulder divided by the pars intermedia by described inner side tire-shoulder auxiliary groove, described external shoulder counter drain and described tire-shoulder transverse groove is arranged along tire circumference interval; And
External shoulder pattern block arranges, and this external shoulder pattern block row are that the external shoulder pattern block divided the outside portion by described external shoulder counter drain, described tyre surface ground terminal and described tire-shoulder transverse groove is arranged along tire circumference interval,
Each tire circumference of the inside portion of described tire-shoulder transverse groove, pars intermedia and outside portion every establish spacing be less than the tire circumference of described central transverse every establishing spacing,
The width W 3 of the width W 1 of the tire axial of described inner side pattern block on tire shoulder, the width W 2 of the tire axial of described middle pattern block on tire shoulder and the tire axial of described external shoulder pattern block meets following relation:
W1＞W2＞W3。
2. Pneumatic tire for heavy vehicle according to claim 1, is characterized in that,
Described external shoulder counter drain is larger and less than the trench depth of described inner side tire-shoulder auxiliary groove than the ditch width of described inner side tire-shoulder auxiliary groove.
3. Pneumatic tire for heavy vehicle according to claim 1 and 2, is characterized in that,
Described tire-shoulder transverse groove is configured to: described inside portion and described pars intermedia stagger phase place in tire circumference.
4. Pneumatic tire for heavy vehicle according to claim 1 and 2, is characterized in that,
Described tire-shoulder transverse groove is configured to: described pars intermedia and described outside portion are continuous on tire axial via described external shoulder counter drain.
5. Pneumatic tire for heavy vehicle according to claim 4, is characterized in that,
The ditch width of the described outside portion of described tire-shoulder transverse groove is greater than the ditch width of described pars intermedia.
6. Pneumatic tire for heavy vehicle according to claim 1 and 2, is characterized in that,
The trench depth of described tire-shoulder transverse groove increases from described pars intermedia towards described outside portion.
7. Pneumatic tire for heavy vehicle according to claim 1 and 2, is characterized in that,
Described external shoulder pattern block arranges chamfering at the corner part that the pattern block tread of this external shoulder pattern block and the outside face of sidewall portions are formed.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2011016997A JP5200123B2 (en) | 2011-01-28 | 2011-01-28 | Heavy duty pneumatic tire |
| JP2011-016997 | 2011-07-25 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102616090A CN102616090A (en) | 2012-08-01 |
| CN102616090B true CN102616090B (en) | 2015-11-11 |
Family
ID=46556435
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210017284.6A Expired - Fee Related CN102616090B (en) | 2011-01-28 | 2012-01-19 | Pneumatic tire for heavy vehicle |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP5200123B2 (en) |
| KR (1) | KR101760527B1 (en) |
| CN (1) | CN102616090B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3047984B1 (en) | 2013-10-17 | 2018-07-18 | Sumitomo Rubber Industries, Ltd. | Pneumatic tire |
| JP6420547B2 (en) * | 2014-01-27 | 2018-11-07 | 住友ゴム工業株式会社 | Pneumatic tire |
| JP5957496B2 (en) * | 2014-08-07 | 2016-07-27 | 住友ゴム工業株式会社 | Pneumatic tire |
| JP6154798B2 (en) * | 2014-12-12 | 2017-06-28 | 住友ゴム工業株式会社 | Pneumatic tire |
| IT201800009473A1 (en) * | 2018-10-16 | 2020-04-16 | Bridgestone Europe Nv Sa | OUTSOLE FOR WINTER TIRE AND WINTER TIRE |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101513823A (en) * | 2008-02-18 | 2009-08-26 | 住友橡胶工业株式会社 | Pneumatic tire |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5350904U (en) * | 1976-10-01 | 1978-04-28 | ||
| JPH01215605A (en) * | 1988-02-23 | 1989-08-29 | Toyo Tire & Rubber Co Ltd | Tread pattern of pneumatic tire with reduced deflective abrasion |
| JP2547286B2 (en) * | 1990-07-04 | 1996-10-23 | 住友ゴム工業株式会社 | Pneumatic tire |
| JPH0516615A (en) * | 1991-07-08 | 1993-01-26 | Ohtsu Tire & Rubber Co Ltd :The | Pneumatic radial tire for heavy load |
| JP3690836B2 (en) * | 1995-05-25 | 2005-08-31 | 横浜ゴム株式会社 | studless tire |
| JP3837235B2 (en) * | 1998-06-10 | 2006-10-25 | 横浜ゴム株式会社 | Heavy duty studless tire |
| JP3524899B2 (en) * | 2001-10-12 | 2004-05-10 | 住友ゴム工業株式会社 | Heavy duty tire |
| JP4909582B2 (en) * | 2005-12-15 | 2012-04-04 | 東洋ゴム工業株式会社 | Pneumatic tire |
-
2011
- 2011-01-28 JP JP2011016997A patent/JP5200123B2/en not_active Expired - Fee Related
-
2012
- 2012-01-17 KR KR1020120005188A patent/KR101760527B1/en active IP Right Grant
- 2012-01-19 CN CN201210017284.6A patent/CN102616090B/en not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101513823A (en) * | 2008-02-18 | 2009-08-26 | 住友橡胶工业株式会社 | Pneumatic tire |
Also Published As
| Publication number | Publication date |
|---|---|
| KR20120087823A (en) | 2012-08-07 |
| CN102616090A (en) | 2012-08-01 |
| JP5200123B2 (en) | 2013-05-15 |
| KR101760527B1 (en) | 2017-07-21 |
| JP2012158192A (en) | 2012-08-23 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US9315075B2 (en) | Pneumatic tire | |
| CN103204033B (en) | Heavy Duty Pneumatic Tire | |
| CN101531122B (en) | Studless tire | |
| JP5440590B2 (en) | Pneumatic tire | |
| JP5429267B2 (en) | Pneumatic tire | |
| JP5922688B2 (en) | Pneumatic tire | |
| CN102039787B (en) | Pneumatic tire | |
| CN103381741A (en) | Pneumatic tire | |
| CN106347034A (en) | Pneumatic tire | |
| CN105711342A (en) | Pneumatic tire | |
| CN103978849A (en) | Heavy duty pneumatic tire | |
| CN102529594B (en) | Pneumatic tire | |
| CN102529595A (en) | Pneumatic tire | |
| CN105377587A (en) | Tire for heavy loads | |
| CN102463852A (en) | Pneumatic tire | |
| CN104890451A (en) | Inflation tyre | |
| KR20140060226A (en) | Pneumatic tire | |
| US20220118796A1 (en) | Pneumatic tire | |
| CN104044407B (en) | Pneumatic tire | |
| CN102616090B (en) | Pneumatic tire for heavy vehicle | |
| CN101920637A (en) | Pneumatic tire for running on rough terrain | |
| CN104703817A (en) | Pneumatic tire | |
| CN102883893B (en) | Air-inflation tyre | |
| CN105764708A (en) | Tire for winter | |
| JP2013079014A (en) | Pneumatic tire |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151111 |