CN106457922A - Pneumatic tire - Google Patents
Pneumatic tire Download PDFInfo
- Publication number
- CN106457922A CN106457922A CN201580021587.7A CN201580021587A CN106457922A CN 106457922 A CN106457922 A CN 106457922A CN 201580021587 A CN201580021587 A CN 201580021587A CN 106457922 A CN106457922 A CN 106457922A
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- China
- Prior art keywords
- block
- tire
- type tread
- major trough
- circumferential major
- Prior art date
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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
-
- 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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
- B60C11/00—Tyre tread bands; Tread patterns; Anti-skid inserts
- B60C11/03—Tread patterns
- B60C11/12—Tread patterns characterised by the use of narrow slits or incisions, e.g. sipes
- B60C11/1236—Tread patterns characterised by the use of narrow slits or incisions, e.g. sipes with special arrangements in the tread pattern
- B60C2011/1254—Tread patterns characterised by the use of narrow slits or incisions, e.g. sipes with special arrangements in the tread pattern with closed sipe, i.e. not extending to a groove
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Tires In General (AREA)
Abstract
A pneumatic tire (1) is configured in such a manner that the left and right edges of blocks (5), the edges facing circumferential main grooves (21), have a stepped shape, the amplitude of which in the width direction of the tire varies. The front and rear edges of the blocks (5), the edges facing lug grooves (41), have a stepped shape, the amplitude of which in the circumferential direction of the tire varies. The blocks (5) have sipes extending in the width direction of the tire. Eighty percent of the sipes (51) formed in each of the blocks (5) are semi-closed type sipes, each of which is open at one end to a circumferential main groove (21) and terminates at the other end within the block (5). Also, the projected length (P) of a semi-closed sipe (51) in the circumferential direction of the tire and the length (Wb), in the width direction, of an edge of a block (5), the edge facing a lug groove (41), have the relationship of 0.30 <= P/Wb <= 0.60.
Description
Technical field
The present invention relates to pneumatic tire, in more detail, relate to improve the pneumatic tire of the resistance to partial wear of tire.
Background technology
In pickup truck studless tire in recent years, in order to improve performance on ice and the snow performance of tire,
Using the trailed model decorative pattern with the multiple block-type tread row with siping.As so conventional pneumatic tire it is known to
Technology described in patent documentation 1.
【Citation】
【Patent documentation】
【Patent documentation 1】Japanese Unexamined Patent Publication 2009-12671 publication
Content of the invention
Invention problem to be solved
On the other hand, in the structure with trailed model decorative pattern as described above, there is the eccentric wear that should suppress block-type tread
Damage the problem of (especially central authorities' abrasion).
Therefore, the present invention completes in view of the above problems, its object is to provide and a kind of can improve the resistance to of tire
The pneumatic tire of partial wear.
Means to solve the problem
In order to achieve the above object, the pneumatic tire of the present invention be have the circumferentially extending multiple circumferential major troughs of tire,
And the pneumatic tire by multiple land portion of described circumferential major trough division, wherein, by positioned at tire width direction
The described circumferential major trough in outside is referred to as outermost circumferential major trough, and the tyre width side that will be marked off by described outermost circumferential major trough
To inner side described land portion be referred to as center land when, at least 1 row described center land have tire width direction extend many
Individual pattern block groove and the multiple block-type treads being divided by the plurality of pattern block groove；Described block-type tread positioned at institute
The left and right edges portion stating circumferential major trough side has the step shape in tire width direction with amplitude；The position of described block-type tread
In the front and rear side edge of described pattern block groove side, there is the step shape in tire circumference with amplitude；The plurality of block-type tread
It is respectively provided with a plurality of siping extending in tire width direction；Be formed at 1 described block-type tread 80 [%] described
Siping be at one end portion to described circumferential major trough opening and the other end terminate in described block-type tread semiclosed
Siping；And, described semiclosed siping is to described in circumferential projected length P projecting of tire and described block-type tread
Width length Wb of the edge part of pattern block groove side has the relation of 0.30≤P/Wb≤0.60.
Invention effect
In the pneumatic tire of the present invention, by projected length P of semiclosed siping and the width side of block-type tread
Suitably changed to the ratio P/Wb of length Wb, there is the stress concentration at the edge part suitably having relaxed block-type tread and guarantee
The advantage of the partial wear that is rigid, inhibiting center land of block-type tread.
Brief description
Fig. 1 is the sectional view in the airtyred tyre equatorial direction representing embodiment of the present invention.
Fig. 2 is the plane graph (top view) representing the airtyred tread surface described in Fig. 1.
Fig. 3 is the plane graph of the center land representing the tread contour described in Fig. 2.
Fig. 4 is the sectional view of the pattern block groove representing the center land described in Fig. 3.
Fig. 5 is the sectional view of the notch part representing the block-type tread described in Fig. 3.
Fig. 6 is the sectional view of the siping representing the block-type tread described in Fig. 3.
Fig. 7 is the explanatory diagram of an example representing 3-dimensional sipe.
Fig. 8 is the explanatory diagram of an example representing 3-dimensional sipe.
Fig. 9 is the chart of the result of airtyred performance test representing embodiment of the present invention.
Figure 10 is the chart of the result of airtyred performance test representing embodiment of the present invention.
Specific embodiment
Below, referring to the drawings the present invention is described in detail.Additionally, not this is limited by present embodiment
Bright.In addition, in the element of present embodiment, including in the conforming simultaneously replaceable and obvious energy maintaining invention
The key element of displacement.In addition, the multiple modified examples described in present embodiment are self-evident to those skilled in the art
In the range of can carry out combination in any.
[pneumatic tire]
Fig. 1 is the sectional view in the airtyred tyre equatorial direction representing embodiment of the present invention.The figure shows
The single side regions of tire radial direction.In addition, in the figure, as an airtyred example, show pickup truck with no following closely
Non-skid tyre.Additionally, in the figure, reference number C L is equatorial plane.In addition, tire width direction refers to parallel to tire
The direction of rotary shaft (omitting diagram), tire radial direction refers to the direction perpendicular to tire rotary shaft.
This pneumatic tire 1 has the circulus centered on tire rotary shaft, have a pair of bead core 11,11, a pair
Tyre bead filler 12,12, body piles 13, belt 14, tread-rubber 15, a pair of sidewall rubber 16,16 and a pair of rim cushion rubber
Glue 17,17 (with reference to Fig. 1).
A pair of bead core 11,11 is the core that the endless member of multiple tyre bead cluster bindings constitutes left and right bead part.One
Tyre bead filler 12,12 is respectively arranged at the tire outer radial periphery of a pair of bead core 11,11, reinforced bead portion.
Body piles 13 are annularly erected to constitute the skeleton of tire between left and right bead core 11,11.In addition, body piles
13 both ends rollback locking to outside tire width direction in the way of wrapping into bead core 11 and tyre bead filler 12.In addition,
Body piles 13 are to be covered by steel or organic fibrous material (for example, aromatic polyamides, Buddhist nun by covering rubber (coating rubber)
Dragon, polyester, artificial silk etc.) multiple body cords of constituting carry out rolling processing and constitute, having absolute value is 80 [deg]
Above and the following carcass angle of 95 [deg] (machine direction of body cord is with respect to the inclination angle of tire circumference).
Belt 14 stacking a pair of cross band bundle 141,142 and band bundle covering 143 form, and hang around configuration in carcass
The periphery of layer 13.A pair of cross band bundle 141,142 be by cover rubber cover be made up of steel or organic fibrous material many
Individual belt cord and carry out roll processing and constitute, have absolute value be more than 20 [deg] and 40 [deg] band beam angle below
Degree.In addition, a pair of cross band bundle 141,142 has the sign symbol belt angle different from each other (machine direction of belt cord
Inclination angle with respect to tire circumference), make the machine direction of belt cord be laminated (cross belt structure) intersected with each otherly.Band bundle
Covering 143 is by rolling to by the multiple belt cord being made up of steel or organic fibrous material covering rubber covering
System is processed and is constituted, and having absolute value is more than 45 [deg] and 70 [deg] belt angle below.In addition, band bundle covering
143 laminated configuration are in the tire radial outside of cross belt 141,142.
Tread-rubber 15 is configured at the tire outer radial periphery of body piles 13 and belt 14 and constitutes the fetus face of tire.One
Sidewall rubber 16,16 is respectively arranged at the sidewall constituting left and right outside the tire width direction of body piles 13.A pair of wheel
Rim yielding rubber 17,17 is respectively arranged at structure outside left and right bead core 11,11 and the tire width direction of tyre bead filler 12,12
Become left and right bead part.
Additionally, tread-rubber 15 (especially constituting the cap rubber of tread surface) preferably has more than 50 and less than 75
Rubber hardness, more preferably has more than 60 and less than 70 rubber hardness.Rubber hardness refers on the basis of JIS-K6263
JIS-A hardness, under conditions of 20 [DEG C] measure.
[tread contour]
Fig. 2 is the plane graph representing the airtyred tread surface described in Fig. 1.In the figure, show no to follow closely and prevent
The trailed model decorative pattern of caster tyre.Additionally, in fig. 2, tire circumference refers to the direction around tire rotary shaft.In addition, accompanying drawing mark
Note T is tire earth terminal.
As shown in Fig. 2 this pneumatic tire 1 has in fetus face：Along circumferentially extending multiple circumferential major troughs of tire 21,22,
The multiple land portion 31～33 being divided by these circumferential major troughs 21,22 and the multiple decorative patterns extending in tire width direction
Block groove 41～44.In addition, reference 23 is circumferential stria.
Circumferential major trough be have represent abrasion late period wear indicator circumferential slot, in general, have 5.0 [mm] with
On groove width and more than 7.5 [mm] groove depth.
Groove width is tire to be installed on regulation wheel rim and is being filled with the intrinsic pressure no load condition of regulation, as channel opening
The maximum of the distance of left and right cell wall at portion and determined.In edge part, there is the structure of notch part, chamfered section in land portion
In, slot length direction is being seen as the section of normal direction, is being come on the basis of the intersection point of tyre surface tread and the extended line of cell wall
Measure groove width.In addition, in groove in the structure that tire circumference indention or waveform extend, with the center of the amplitude of cell wall
Groove width is measured on the basis of line.
Groove depth is tire to be installed on regulation wheel rim and is being filled with the intrinsic pressure no load condition of regulation, as from tyre surface
The maximum of distance to bottom land for the tread and determined.In addition, there is jog and/or the knife of local in groove in bottom land
In the structure of groove decorative pattern, they are removed other places and measures groove depth.
Regulation wheel rim refers to " with リ system (applicable wheel rim) " of JATMA defined, " the Design Rim of TRA defined
(design wheel rim) " or " Measuring Rim (the measurement wheel rim) " of ETRTO defined.In addition it is stipulated that intrinsic pressure refer to JATMA institute
" high-altitude (highest air pressure) ", " the TIRE LOAD LIMITS AT VARIOUS COLD of TRA defined of regulation
The maximum of INFLATION PRESSURES (tire load limits under various cold inflation pressures) " or ETRTO defined
" INFLATION PRESSURES (the blowing pressure) ".In addition, ordinance load refers to " the maximum lotus ability of JATMA defined
(maximum loadability) ", " the TIRE LOAD LIMITS AT VARIOUS COLD INFLATION of TRA defined
The maximum of PRESSURES (tire load limits under various cold inflation pressures) " or " LOAD of ETRTO defined
CAPACITY (load capacity) ".Wherein, in JATMA, in the case of riding tire for vehicles it is stipulated that intrinsic pressure for air pressure
180 [kPa] are it is stipulated that load is 88 [%] of maximum loadability.
Here, the outermost left and right circumferential major trough 22,22 positioned at tire width direction is referred to as outermost circumferential major trough.Separately
Outward, the land portion 31,32 inside tire width direction will be leaned on to be referred to as center land than left and right outermost circumferential major trough 22,22.In addition, will
Lean on the land portion 33,33 outside tire width direction to be referred to as shoulder land department than left and right outermost circumferential major trough 22,22.
For example, in the structure of Fig. 2,4 circumferential major troughs 21,22, centered on equatorial plane CL, are symmetrically joined
Put.In addition, marking off 3 row center land 31,32,32 and pair of right and left shoulder land department 33,33 by these circumferential major troughs 21,22.
In addition, left and right shoulder land department 33,33 is respectively arranged on left and right tire earth terminal T, T.
But however it is not limited to this, circumferential major trough 21,22 can also be centered on equatorial plane CL, and left and right is asymmetricly
Configuration (omits diagram).In addition, circumferential major trough can also be configured on equatorial plane CL (omitting diagram).Alternatively, it is also possible to
The circumferential major trough (omitting diagram) of configuration 3 or more than 5.
[center land]
Fig. 3 is the plane graph of the center land representing the tread contour described in Fig. 2.In the figure, show central land
The amplification view of the block-type tread 5 in portion 31.
Additionally, in the structure of Fig. 2, pneumatic tire 1 has 3 row center land 31,32, these center land 31,32 have
There is identical structure.Therefore, in the present embodiment, as an example, central center land 31 is illustrated, and saves
The explanation of slightly other center land 32,32.
As described above, in the structure of Fig. 2, center land 31 (32) has the multiple decorative patterns extending in tire width direction
Block groove 41 (42) and the multiple block-type treads 5 being divided by these pattern block grooves 41.In addition, multiple pattern block grooves 41 exist
Tire width direction insertion center land 31, respectively to left and right circumferential major trough 21,21 openings dividing center land 31.In addition,
Multiple pattern block grooves 41 are arranged at a predetermined interval along tire circumference.Thus, center land 31 by pattern block groove 41 along tire
Circumference separates, and becomes the block-type tread row being made up of multiple block-type treads 5.
In addition, in the structure of Fig. 2, all of land portion 31～33 is respectively provided with the multiple flowers extending in tire width direction
Stricture of vagina block groove 41～44, these pattern block grooves 41～44 have the open architecture in tire width direction insertion land portion 31～33.Cause
This, all of land portion 31～33 becomes block-type tread row.
It is however not limited to this, the pattern block groove 43 of such as shoulder land department 33 can also have at one end portion, in land portion 33
The semi-closed structure (omitting diagram) terminating.In the case, shoulder land department 33 becomes continuous strip flower in tire circumference
Stricture of vagina.
Here, as shown in figure 3, in center land 31, the left and right edges positioned at circumferential major trough 21,21 sides of block-type tread 5
Portion has the step shape in tire width direction with amplitude.Thus, the traction composition of center land 31 increases, and can improve wheel
The performance on ice of tire and snow performance.
For example, in the structure in figure 3, the left and right edges portion positioned at circumferential major trough 21,21 sides of block-type tread 5 has band 2
The step shape of individual step (omission reference).In addition, these steps have in block-type tread tread is roughly parallel to tire
The rectilinear form of circumference, and configure with offseting one from another in tire width direction.In addition, the step difference of step shape (omits attached
Icon is remembered) central part that is configured at block-type tread 5 is (long with respect to the circumference of the edge part of circumferential major trough 21 side of block-type tread 5
Degree Lb, is more than 40 [%] and 60 [%] area below).In addition, the edge part in the circumferentially-adjacent block-type tread of tire 5,5
Step configure with staggering across pattern block groove 41, in tire width direction.Thus, circumferential major trough 21 side of center land 31
Edge part has while being in step-like change while in the circumferentially extending step shape of tire in tire width direction.
Additionally, in the structure in figure 3, step residual quantity (the omitting size reference) quilt of the step shape of block-type tread 5
Setting is of about 2 [mm].
In addition, as shown in figure 3, the front and rear side edge positioned at pattern block groove 41 side of block-type tread 5 has in tire circumference
There is the step shape of amplitude.Thus, the traction composition of center land 31 increases, and can improve performance on ice and the upper property of snow of tire
Energy.
For example, in the structure in figure 3, pattern block groove 41 bends and extends in tire width direction, thus block
The edge part of pattern block groove 41 side of decorative pattern 5 has the step shape with 2 steps (omission reference).In addition, these
Rank configures in the well width direction of pattern block groove 41 with offseting one from another.In addition, the step difference 53 of the step shape of block-type tread 5
It is configured at central part (the width length with respect to the edge part of pattern block groove 41 side of block-type tread 5 of block-type tread 5
Wb is more than 40 [%] and 60 [%] area below).
In addition, pattern block groove 41 obliquely extends at a predetermined angle in tire width direction, thus the step of block-type tread 5
The step of shape tilts whole relative to tire width direction.Now, pattern block groove 41 inclining with respect to tire width direction
Oblique angle is preferably in more than 1 [deg] and 30 [deg] scope below.
The inclination angle of pattern block groove 41 is the straight line and wheel as the central point by the left and right peristome of pattern block groove 41
Angle formed by tire width and determined.
In addition, circumferential lengths Lb of edge part of circumferential major trough 21 side of block-type tread 5 and the pattern block groove of block-type tread 5
Width length Wb of the edge part of 41 sides has the relation of 1.15≤Lb/Wb≤1.50.Thus, the shape of block-type tread 5
Suitably changed.
Circumferential lengths Lb of block-type tread 5 are the tire circumference of the edge part towards circumferential major trough 21 of block-type tread 5
Distance, is tire to be installed on regulation wheel rim and to be applied with regulation intrinsic pressure and be in no load condition and determined.In addition,
The edge part of block-type tread 5 has in chamfered section and/or the structure of notch part, will measure circumferential lengths Lb except them.
Width length Wb of block-type tread 5 is the tire width of the edge part towards pattern block groove 41 of block-type tread 5
The distance in degree direction, is tire to be installed on regulation wheel rim and to be applied with regulation intrinsic pressure and be in no load condition and determined
's.In addition, the edge part in block-type tread 5 has in chamfered section and/or the structure of notch part, width will be measured except them
Direction length Wb.
In addition, in the structure in figure 3, as described above, pattern block groove 41 tilts with respect to tire width direction, thus block
The tread of decorative pattern 5 has parallelogram like as overall.And the corner of the acute angle of block-type tread 5 is provided with chamfered section
(omission reference).Thus, it is ensured that the intensity in the corner of block-type tread 5 is suppressing the partial wear of block-type tread 5, and, make
The width obtaining the channel opening portion of pattern block groove 41 increases and improves drainage.
In addition, width length Wb of the edge part of pattern block groove 41 side of block-type tread 5 and tyre contact width TW
(with reference to Fig. 2) has the relation of 0.10≤Wb/TW≤0.18.Thus, width length Wb of block-type tread 5 is suitably changed.
Tyre contact width TW as following when tire and flat board contact surface at tire axial maximum linear
Distance and determined, this when be that tire is being installed on regulation wheel rim intrinsic pressure, and the phase under static state that is applied with regulation
When flat board being disposed vertically, and is applied with the load corresponding with ordinance load.
In addition, pattern block groove 41 for divide center land 31 left and right circumferential major trough 21,21 with penetrating (see
Through) structural openings.Permeable structures refer to see the opposing party's week from side's circumferential major trough 21 via pattern block groove 41
Structure to major trough 21.By this permeable structures, drainage and row's snow property of pattern block groove 41 can be improved.
In addition, the edge of circumferential major trough 21 side of the A/F Wl of tire circumference of pattern block groove 41 and block-type tread 5
Circumferential lengths Lb in portion preferably have the relation of 0.08≤Wl/Lb≤0.18, more preferably have the pass of 0.10≤Wl/Lb≤0.15
System.Thus, the A/F Wl of pattern block groove 41 is suitably changed.
The A/F Wl of pattern block groove 41 is the tire circumference of the peristome for circumferential major trough 21 for the pattern block groove 41
Distance, is tire to be installed on regulation wheel rim and to be applied with regulation intrinsic pressure and be in no load condition and determined.In addition,
The edge part of block-type tread 5 has in chamfered section and/or the structure of notch part, will measure A/F Wl except them.
Additionally, in general pattern block groove 41 has the groove width of more than 1.0 [mm].The groove width of pattern block groove 41 is block flower
The edge part of stricture of vagina 5 removes chamfered section and/or notch part and determined.
Fig. 4 is the sectional view of the pattern block groove representing the center land described in Fig. 3.In the figure, show pattern block
The sectional view in the groove depth direction of groove 41.
As shown in figure 4, in center land 31, pattern block groove 41 has lift bottom 411.Lift bottom 411 is formed at pattern block
The bottom land of groove 41, partly bottom is raised to make the groove depth of pattern block groove 41.Thus, it is ensured that the rigidity of block-type tread 5, suppression bulk
The partial wear of decorative pattern 5.
In addition, groove depth DL of pattern block groove 41 at lift bottom 411 and groove depth GD of circumferential major trough 21 preferably have 0.50
The relation of≤DL/GD≤0.80, more preferably has the relation of 0.55≤DL/GD≤0.75.Thus, the decorative pattern at lift bottom 411
Groove depth DL of block groove 41 is suitably changed.
For example, in the structure of Fig. 4, the lift bottom 411 of pattern block groove 41 is formed at the slot length direction of pattern block groove 41
Central part.In addition, the groove depth of pattern block groove 41 is gradually increased towards circumferential major trough 21 from lift bottom 411, main for circumference
The channel opening portion of groove 21 becomes maximum.Thus, drainage and row's snow property of pattern block groove 41 can be improved.
[notch part]
Fig. 5 is the sectional view of the notch part representing the block-type tread described in Fig. 3.In the figure, show notch part 52
Depth direction sectional view.
As shown in figure 3, the block-type tread 5 of center land 31 has notch part in the edge part positioned at circumferential major trough 21 side
52.In addition, notch part 52 is formed at the step difference of the step shape of block-type tread 5.Thus, block-type tread during tire ground connection
The slippage homogenization of 5 edge part, the partial wear of suppression block-type tread 5.
For example, in the structure in figure 3, the block-type tread 5 of center land 31 is in the edge part of left and right circumferential major trough 21,21 sides
It is respectively provided with notch part 52.In addition, as described above, the left and right edges portion of block-type tread 5 is respectively provided with the step with 2 steps
Shape, is respectively configured notch part 52 in the step difference of these steps.
In addition, in figure 3, circumferential lengths Lb of edge part of circumferential major trough 21 side of block-type tread 5 and block-type tread 5
The position Mc of the notch part 52 in edge part preferably has the relation of 0.35≤Mc/Lb≤0.65, more preferably has 0.40≤Mc/
The relation of Lb≤0.60.Thus, the position Mc of notch part 52 is suitably changed.
The position Mc of notch part 52, as in vertical view (viewed in plan) of block-type tread 5, the circumference of block-type tread 5 is long
The center of the measuring point of degree Lb and notch part 52 is determined in the distance of tire circumference.
In addition, in Figure 5, groove depth GD of depth Dc of notch part 52 and circumferential major trough 21 preferably has 0.50≤Dc/GD
≤ 0.80 relation, more preferably has the relation of 0.55≤Dc/GD≤0.75.Thus, depth Dc of notch part 52 is suitably changed.
Depth Dc of notch part 52 is tested as the depth capacity of the notch part 52 on the basis of the tread of block-type tread 5
Fixed.
In addition, in figure 3, the edge of pattern block groove 41 side of width length Wc of notch part 52 and block-type tread 5
Width length Wb in portion preferably has the relation of 0.05≤Wc/Wb≤0.25.Thus, it is ensured that the function of notch part 52, separately
Outer it is ensured that the rigidity of block-type tread 5.
Width length Wc of notch part 52 is as with the edge of circumferential major trough 21 side of the step shape of block-type tread 5
The length of the tire width direction on the basis of the step in portion and determined.
[siping]
Fig. 6 is the sectional view of the siping representing the block-type tread described in Fig. 3.In the figure, show that cutter groove is spent
The sectional view of the depth direction of stricture of vagina 51.
In the structure in figure 3, the block-type tread 5 of center land 31 is respectively provided with a plurality of knife extending in tire width direction
Groove decorative pattern 51.In addition, the siping 51 being formed at 80 [%] of 1 block-type tread 5 is semiclosed siping (single-open
Siping), portion terminates to circumferential major trough 21 opening in the other end in block-type tread 5 at one end.Thus, block-type tread
5 marginal element increases, and can improve the hauling ability as studless tire.
Siping refers to the otch with the siping width less than 1.0 [mm].
For example, in the structure in figure 3,1 block-type tread 5 has multiple semiclosed siping 51 and exists at both ends
Multiple contained sipes (omission reference) that the inside of block-type tread 5 terminates.In addition, 1 block-type tread 5 is semiclosed
The ratio of siping 51 is set at more than 80 [%] with respect to the total number of siping.In addition, these are multiple semiclosed
Siping 51 has the zigzag extending in tire width direction, in tire circumference with the configuration of substantially uniform interval.In addition,
These multiple semiclosed siping 51 are equably configured at the left and right edges portion of block-type tread 5.Thus, a left side for block-type tread 5
The rigid uniform of the right edge.
In addition, in the structure in figure 3, the block-type tread 5 of center land 31 does not have the open cutter groove of insertion block-type tread 5
Decorative pattern.Therefore, the tread of block-type tread 5 will not be partitioned from because of siping, has structure circumferentially continuous in tire.By
This, improve the rigidity of block-type tread 5.
In addition, semiclosed siping 51 is to the pattern block groove 41 of circumferential projected length P projecting of tire and block-type tread 5
Width length Wb of the edge part of side is respectively provided with the relation of 0.30≤P/Wb≤0.60.In addition, being preferably in than P/Wb
The scope of 0.35≤P/Wb≤0.55.In addition, meeting the semiclosed siping 51 of this condition than P/Wb with respect to 1 bulk
The total number of the siping of decorative pattern 5 is set at more than 80 [%].Thus, projected length P of siping 51 is suitably changed.
Projected length P of siping is determined on the basis of the sipe length at the tread of block-type tread 5.
In addition, in figure 6, the sipe depth Ds1 of semiclosed siping 51 and groove depth GD of circumferential major trough 21 are excellent
Choosing has the relation of 0.55≤Ds1/GD≤0.85, more preferably has the relation of 0.60≤Ds1/GD≤0.80.Thus, cutter groove flower
Stricture of vagina depth Ds1 is suitably changed.
Sipe depth Ds1 is as the distance of the depth capacity position from the tread of block-type tread 5 to siping 51
And it is determined.
In addition, as shown in fig. 6, semiclosed siping 51 has lift bottom 511 in the peristome for circumferential major trough 21.
Thus, relaxed stress concentration at the edge part of circumferential major trough 21 side of block-type tread 5 it is suppressed that bulk during tire ground connection
Collapsing of decorative pattern 5, suppresses the partial wear of block-type tread 5.
Now, groove depth GD of the sipe depth Ds2 at lift bottom 511 and circumferential major trough 21 preferably have 0.05≤
The relation of Ds2/GD≤0.25, more preferably has the relation of 0.10≤Ds2/GD≤0.20.Thus, the cutter groove at lift bottom 511
Pattern depth Ds2 is suitably changed.
Sipe depth Ds2 at lift bottom 511 is to be measured on the basis of the tread of block-type tread 5.
In addition, in figure 6, configured length Ws of lift bottom 511 and the edge part of pattern block groove 41 side of block-type tread 5
Width length Wb preferably has the relation of 0.05≤Ws/Wb≤0.20.Thus, the configuring area of lift bottom 511 is suitable
Change.
Lift bottom 511 configured length Ws as block-type tread 5 vertical view when lift bottom 511 in tire width direction
Length and determined.
Additionally, siping can be two-dimentional siping or 3-dimensional sipe.For example, in the structure of Fig. 3
In, the siping of center land 31 is all 3-dimensional sipe.
Two-dimentional siping refers to, (comprises siping in the section view with sipe length direction as normal direction
During the section view in width and sipe depth direction) in have rectilinear form siping wall siping.Two
Dimension siping both can have rectilinear form in tyre surface tread, it is possible to have zigzag fashion, wave shape or circular arc
Shape.
3-dimensional sipe refers to have in siping in the section view with sipe length direction as normal direction
The siping of the siping wall of shape of bending on width.Compared with two-dimentional siping, three-dimensional cutter groove flower
The engagement force of the relative siping wall of stricture of vagina is strong, and when therefore restrained effectively tire ground connection, block-type tread collapses.Three
Dimension siping both can have rectilinear form on tyre surface tread, it is possible to have zigzag fashion, wave shape or circular arc
Shape.For this 3-dimensional sipe, for example, can enumerate following example (with reference to Fig. 7 and Fig. 8).
Fig. 7 and Fig. 8 is the explanatory diagram of that illustrates 3-dimensional sipe.The figures illustrate 3-dimensional sipe
Siping wall.
In the 3-dimensional sipe 51 of Fig. 7, siping wall face has along sipe length direction link triangular pyramid
The construction of triangular pyramid.In other words, siping wall makes the zigzag fashion of tread surface side and the zigzag fashion of bottom side
Mutually stagger on tire width direction spacing, this tread surface side and bottom side zigzag fashion there are each other
This is relative concavo-convex.In addition, concavo-convex when tire direction of rotation is observed in these are concavo-convex, respectively with crest line by tyre surface
Be connected between the male bend break of face side and the recessed inflection point of bottom side, the recessed inflection point of tread surface side and bottom side is convex
Be connected between inflection point, by male bend break adjacent one another are in the male bend break of tread surface side and the male bend break of bottom side
It is connected each other, and will be linked with plane successively along tire width direction between these crest lines, be consequently formed siping wall
Face.In addition, the siping wall face of a side has the triangular pyramid being alternately arranged convex on tire width direction and Rhizoma Sparganii
The male and fomale(M＆F) of cone, the siping wall face of the opposing party has and is alternately arranged concave triangular pyramid on tire width direction
The male and fomale(M＆F) of triangular pyramid.And, siping wall, at least makes the two ends being configured at siping outermost recessed
Outside convex surface facing block-type tread.Additionally, as such 3-dimensional sipe, such as known have Japanese Patent No.
Technology described in No. 3894743 publications.
In addition, in the 3-dimensional sipe 51 of Fig. 8, siping wall face has makes there is block-shaped multiple prism phases
Sipe depth direction is tilted and they are linked along sipe depth direction and sipe length direction
Construction.In other words, siping wall has zigzag fashion in tread surface.In addition, siping wall is in block-type tread
Inside have tire radially 2 at more than tire circumference bending and on tire width direction be connected kink, separately
Outward, there is in this kink the zigzag fashion radially in tire with amplitude.In addition, in siping wall, will be in tire
Amplitude in circumference is set to constant, on the other hand, with respect to the angle of inclination to tire circumference of the normal direction of tread surface
Less than the position in tread surface side at the position of siping bottom side, by kink in tire amplitude radially in cutter groove
The position of decorative pattern bottom side is bigger than the position in tread surface side.Additionally, as such 3-dimensional sipe, such as known have day
No. 4316452 technology described in publication of this patent.
[effect]
As explained above, this pneumatic tire 1 have circumferentially extending multiple circumferential major troughs of tire 21,22, with
And the multiple land portion 31～33 (with reference to Fig. 2) by the division of these circumferential major troughs 21,22.In addition, at least 1 row center land 31
There are the multiple bulks divided in multiple pattern block grooves 41 of tire width direction extension and by these pattern block grooves 41
Decorative pattern 5 (with reference to Fig. 3).In addition, the left and right edges portion positioned at circumferential major trough 21 side of block-type tread 5 has in tire width direction
Step shape with amplitude.In addition, the front and rear side edge positioned at pattern block groove 41 side of block-type tread 5 has in tire perimeter band
The step shape of amplitude.In addition, multiple block-type treads 5 are respectively provided with a plurality of siping extending in tire width direction.Separately
Outward, be formed at 80 [%] of 1 block-type tread 5 siping 51 be at one end portion to circumferential major trough 21 opening and in the other end
The semiclosed siping that portion terminates in block-type tread 5.In addition, semiclosed siping 51 is to the projection of tire circumference projection
Width length Wb of the edge part of pattern block groove 41 side of length P and block-type tread 5 be respectively provided with 0.30≤P/Wb≤
0.60 relation.
In the structure shown here, circumferential major trough 21 side of block-type tread 5 and the edge part of pattern block groove 41 have step shape, from
And there is the edge action improving block-type tread 5, the ice snow performance improving tire.In addition, being formed at 1 block flower
The siping 51 of 80 [%] of stricture of vagina 5 is semiclosed siping, thus relaxing while guaranteeing the rigidity of block-type tread 5
Stress concentration at the edge part of block-type tread 5.Thus, there is collapsing, improving wheel of the block-type tread 5 during suppression tire ground connection
The advantage of the resistance to partial wear performance (being especially mounted to the resistance to central authorities polishing machine of the tire of the drive shaft of vehicle) of tire.
In addition, having the ratio P/ of projected length P of semiclosed siping 51 and width length Wb of block-type tread 5
Wb is by the advantage of suitably change.That is, by being 0.30≤P/Wb it is ensured that projected length P of semiclosed siping 51, suitably
Relax the stress concentration at the edge part of block-type tread 5.In addition, by be P/Wb≤0.60 it is ensured that block-type tread 5 firm
Property it is suppressed that the collapsing of block-type tread 5 during tire ground connection.
In addition, in this pneumatic tire 1, the sipe depth Ds1 of semiclosed siping 51 and circumferential major trough 21
Groove depth GD has the relation (with reference to Fig. 6) of 0.55≤Ds1/GD≤0.85.Thus, there is sipe depth Ds1 suitably changed
Advantage.That is, by be 0.55≤Ds1/GD it is ensured that sipe depth Ds1, suitably obtain the work of siping 51
With.In addition, by being Ds1/GD≤0.85 it is ensured that the rigidity of block-type tread 5 is it is suppressed that block-type tread 5 during tire ground connection
Collapse.
In addition, in this pneumatic tire 1, semiclosed siping 51 has lift bottom in the peristome for circumferential major trough 21
Portion 511 (with reference to Fig. 6).In addition, the sipe depth Ds2 at lift bottom 511 and groove depth GD of circumferential major trough 21 have 0.05
The relation of≤Ds2/GD≤0.25.In the structure shown here, relaxed the stress at the edge part of circumferential major trough 21 side of block-type tread 5
Concentrate it is suppressed that the collapsing of block-type tread 5 during tire ground connection.In addition, having the sipe depth Ds2 quilt at lift bottom 511
The advantage of suitableization.That is, by be 0.05≤Ds2/GD it is ensured that sipe depth Ds2, suitably obtain siping 51
Effect.In addition, by being Ds2/GD≤0.25 it is ensured that the rigidity of block-type tread 5 is it is suppressed that bulk when tire is grounded is spent
The collapsing of stricture of vagina 5.
In addition, in this pneumatic tire 1, the left and right edges portion positioned at circumferential major trough 21 side of block-type tread 5 is at above-mentioned
The step difference of stepped shape has notch part 52 (with reference to Fig. 3).Thus, the cunning of the edge part of block-type tread 5 during tire ground connection
Momentum homogenization, the partial wear of suppression block-type tread 5.
In addition, in this pneumatic tire 1, circumferential lengths Lb of edge part of circumferential major trough 21 side of block-type tread 5 and should
The position Mc of the notch part 52 at edge part has the relation (with reference to Fig. 3) of 0.35≤Mc/Lb≤0.65.In the structure shown here, lack
Oral area 52 is configured at the central part of the edge part of block-type tread 5, thus effectively having relaxed answering at the edge part of block-type tread 5
Power is concentrated.Thus, there is the partial wear effectively suppressing block-type tread 5.
In addition, in this pneumatic tire 1, groove depth GD of depth Dc of notch part 52 and circumferential major trough 21 has 0.50≤
The relation (with reference to Fig. 5) of Dc/GD≤0.80.Thus, depth Dc with notch part 52 is by suitably change.That is, by being
0.50≤Dc/GD, it is ensured that depth Dc of notch part 52, suitably obtains the effect of notch part 52.In addition, by being Dc/GD
≤ 0.80 it is ensured that the rigidity of block-type tread 5 is it is suppressed that the collapsing of block-type tread 5 during tire ground connection.
In addition, in this pneumatic tire 1, the A/F Wl of tire circumference of pattern block groove 41 and the week of block-type tread 5
There is the relation (with reference to Fig. 3) of 0.08≤Wl/Lb≤0.18 to circumferential lengths Lb of the edge part of major trough 21 side.Thus, have
The A/F Wl of pattern block groove 41 is by the advantage of suitably change.That is, by being 0.08≤Wl/Lb it is ensured that pattern block groove 41
A/F Wl is it is ensured that the drainage of pattern block groove 41 and row avenge property.In addition, by being Wl/Lb≤0.18 it is ensured that bulk
The rigidity of the tire circumference of decorative pattern 5 is it is suppressed that the collapsing of block-type tread 5 during tire ground connection.
In addition, in this pneumatic tire 1, pattern block groove 41 has lift bottom 411 (with reference to Fig. 4).In addition, lift bottom 411
Groove depth GD of groove depth DL of pattern block groove 41 at place and circumferential major trough 21 has the relation of 0.50≤DL/GD≤0.80.In this knot
In structure, pattern block groove 41 have lift bottom 411, ensure that the rigidity of block-type tread 5 it is suppressed that tire ground connection when bulk
The collapsing of decorative pattern 5.In addition, having the advantages that than DL/GD by suitably change.That is, by being 0.50≤DL/GD it is ensured that lifting bottom
Groove depth DL of the pattern block groove 41 at 411 is it is ensured that the drainage of pattern block groove 41 and row avenge property.In addition, by be DL/GD≤
0.80, suitably ensure that the booster action of the rigidity to block-type tread 5 for the lift bottom 411.
In addition, in this pneumatic tire 1, the platform of the step shape at the edge part of pattern block groove 41 side of block-type tread 5
Order difference part 53 is in more than 40 [%] and 60 of width length Wb of the edge part of pattern block groove 41 side of block-type tread 5
[%] position below (with reference to Fig. 3).In the structure shown here, the step difference 53 of step shape is configured at the edge of block-type tread 5
The central part in portion, thus effectively relaxed the stress concentration at the edge part of block-type tread 5.Thus, there is suppression tire connect
The advantage collapsed of the block-type tread 5 during ground.
In addition, in this pneumatic tire 1, width length Wb of the edge part of pattern block groove 41 side of block-type tread 5
(Fig. 3 reference) and tyre contact width TW (Fig. 2 reference) have the relation of 0.10≤Wb/TW≤0.18.Thus, there is block flower
Width length Wb of stricture of vagina 5 is by the advantage of suitably change.That is, by being 0.10≤Wb/TW, have and ensure that block-type tread 5
Tire width direction rigid, inhibit tire ground connection when block-type tread 5 the advantage collapsed.In addition, by be Wb/TW≤
0.18, suitably ensure that the groove width of circumferential major trough 21 it can be ensured that the drainage of circumferential major trough 21 and row avenge property.
In addition, in this pneumatic tire 1, circumferential lengths Lb of edge part of circumferential major trough 21 side of block-type tread 5 and block
Width length Wb of the edge part of pattern block groove 41 side of shape decorative pattern 5 has the relation (reference of 1.15≤Lb/Wb≤1.50
Fig. 3).Thus, the shape with block-type tread 5 is by suitably change.That is, by being 1.15≤Lb/Wb it is ensured that block spend
Circumferential lengths Lb of stricture of vagina 5 are it is suppressed that the collapsing of block-type tread 5 during tire ground connection.In addition, by being Lb/Wb≤1.50 it is ensured that
The rigidity of the width of block-type tread 5 is it is suppressed that the partial wear of block-type tread 5.
In addition, in this pneumatic tire 1, semiclosed siping 51 is 3-dimensional sipe (with reference to Fig. 7 and Fig. 8).By
This, have the advantages that to increased the engagement force of siping 51, inhibit collapsing of block-type tread 5 during tire ground connection.
In addition, in this pneumatic tire 1, tread-rubber 15 has more than 50 and less than 75 rubber hardness.Thus, have
The advantage suitably guaranteeing the rigidity of fetus face.
[applicable object]
In addition, this pneumatic tire 1 is applied to the low aspect ratio tire with 70 [%] flat ratio below, especially preferably
The highest air that JATMA is specified is pressed and is made for the small card tire for vehicles in more than 350 [kPa] and 600 [kPa] scope below
For applicable object.In this lower flat-ratio small card tire for vehicles, when in the loading of goods and no loading, the ground connection of fetus face
State is easily varied.That is, in the loading of goods, the middle section of fetus face and shoulder zone are likely grounded, but in arming
During load, the tread of shoulder zone amasss and reduces.So, will prematurely wear and tear in the land portion of middle section, thus existing easily
Produce the problem of central authorities' abrasion.Therefore, notable by as applicable object, having the small card tire for vehicles of this lower flat-ratio
The advantage that ground obtains the inhibitory action of partial wear.
Embodiment
Fig. 9 and Figure 10 is the chart of the result of airtyred performance test representing embodiment of the present invention.
In this performance test, to multiple test tires different from each other, carry out and resistance to heel toe abrasion (heel and toe
Wear) the relevant evaluation of performance.In this performance test, the small card tire for vehicles of tire size 205/70R16 is assembled in
The applicable wheel rim of JATMA regulation, applies, to this test tire, highest air pressure and the peak load that JATMA specifies.
In addition, test tire is installed on all wheels of 3 tons of trucks as test vehicle, make test vehicle with flat
All speed 60 [km/h] travels 50,000 [km] on paved road, observes the partial wear producing on the block-type tread of center land.
Then, enter to be about to past case 1 as the index assessment of benchmark (100) based on this observed result.This numerical value is the bigger the better, if
For more than 110, then it may be said that especially having superiority with respect to past case.
The test tire of embodiment 1～18 has the tread contour described in Fig. 2.Wherein, the block flower of embodiment 1～10
Stricture of vagina 5 does not have notch part 52.In addition, tread width TW is TW=160 [mm], maximum groove depth GD of circumferential major trough 21 is GD=
13.5[mm].
In the test tire of past case 1～5, with respect to the structure of embodiment 1, the side of the block-type tread of center land 31
The differences such as the shape of edge, the structure of siping.But, the total number of siping and siping density and embodiment 1
Identical.
As shown in result of the test it is known that, in the test tire of embodiment 1～18, the resistance to partial wear performance of tire improves.
The explanation of reference
1：Pneumatic tire, 5：Block-type tread, 11：Bead core, 12：Tyre bead filler, 13：Body piles, 14：Belt, 141,
142：Cross belt, 143：Band bundle covering, 15：Tread-rubber, 16：Sidewall rubber, 17：Rim cushion rubber, 21,22：Week
To major trough, 31,32：Center land, 33：Shoulder land department, 41～44：Pattern block groove, 411：Lift bottom, 51：Siping, 511：
Lift bottom, 52：Notch part, 53：Step difference.
Claims (14)
1. a kind of pneumatic tire, have in the circumferentially extending multiple circumferential major troughs of tire and divided by described circumferential major trough and
Become multiple land portion it is characterised in that
Outermost described circumferential major trough positioned at tire width direction is being referred to as outermost circumferential major trough, and will be by described outermost
When described land portion inside the tire width direction that circumferential major trough is marked off is referred to as center land,
At least 1 described center land of row has in multiple pattern block grooves of tire width direction extension and by the plurality of flower
Multiple block-type treads that stricture of vagina block groove divides；
The left and right edges portion positioned at described circumferential major trough side of described block-type tread has and has amplitude in tire width direction
Step shape；
The front and rear side edge positioned at described pattern block groove side of described block-type tread has the step in tire circumference with amplitude
Shape；
The plurality of block-type tread is respectively provided with a plurality of siping extending in tire width direction；
Be formed at 80 [%] of 1 described block-type tread described siping be at one end portion to described circumferential major trough opening and
The semiclosed siping terminating in described block-type tread in the other end；And
Described semiclosed siping is to the described pattern block groove side of circumferential projected length P projecting of tire and described block-type tread
Width length Wb of edge part there is the relation of 0.30≤P/Wb≤0.60.
2. pneumatic tire as claimed in claim 1 it is characterised in that
Groove depth GD of the sipe depth Ds1 of described semiclosed siping and described circumferential major trough has 0.55≤Ds1/GD
≤ 0.85 relation.
3. pneumatic tire as claimed in claim 1 or 2 it is characterised in that
Described semiclosed siping has lift bottom in the peristome for described circumferential major trough；And
Groove depth GD of the sipe depth Ds2 at described lift bottom and described circumferential major trough has 0.05≤Ds2/GD≤0.25
Relation.
4. the pneumatic tire as any one of claims 1 to 3 it is characterised in that
The left and right edges portion positioned at described circumferential major trough side of described block-type tread has in the step difference of described step shape
Notch part.
5. pneumatic tire as claimed in claim 4 it is characterised in that
Described notch part at circumferential lengths Lb of edge part of described circumferential major trough side of described block-type tread and this edge part
Position Mc there is the relation of 0.35≤Mc/Lb≤0.65.
6. the pneumatic tire as described in claim 4 or 5 it is characterised in that
Groove depth GD of depth Dc of described notch part and described circumferential major trough has the relation of 0.50≤Dc/GD≤0.80.
7. the pneumatic tire as any one of claim 1～6 it is characterised in that
The edge part of the described circumferential major trough side of the A/F Wl of tire circumference of described pattern block groove and described block-type tread
Circumferential lengths Lb there is the relation of 0.08≤Wl/Lb≤0.18.
8. the pneumatic tire as any one of claim 1～7 it is characterised in that
Described pattern block groove has lift bottom, and
Groove depth DL of described pattern block groove at described lift bottom and groove depth GD of described circumferential major trough have 0.50≤DL/GD≤
0.80 relation.
9. the pneumatic tire as any one of claim 1～8 it is characterised in that
The step difference of the described step shape at the edge part of described pattern block groove side of described block-type tread is in described piece
More than 40 [%] of width length Wb of edge part of described pattern block groove side of shape decorative pattern and 60 [%] position below.
10. the pneumatic tire as any one of claim 1～9 it is characterised in that
Width length Wb of edge part of described pattern block groove side of described block-type tread and tyre contact width TW have
The relation of 0.10≤Wb/TW≤0.18.
11. pneumatic tires as any one of claim 1～10 it is characterised in that
Circumferential lengths Lb of edge part of described circumferential major trough side of described block-type tread and the described decorative pattern of described block-type tread
Width length Wb of the edge part of block groove side has the relation of 1.15≤Lb/Wb≤1.50.
12. pneumatic tires as any one of claim 1～11 it is characterised in that
Described semiclosed siping is 3-dimensional sipe.
13. pneumatic tires as any one of claim 1～12 it is characterised in that
Tread-rubber has more than 50 and less than 75 rubber hardness.
14. pneumatic tires as any one of claim 1～13 it is characterised in that
The highest air being specified with JATMA is pressed as the small card vehicle wheel in more than 350 [kPa] and 600 [kPa] scope below
Tire is as applicable object.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2014-095423 | 2014-05-02 | ||
| JP2014095423A JP6032240B2 (en) | 2014-05-02 | 2014-05-02 | Pneumatic tire |
| PCT/JP2015/063063 WO2015167007A1 (en) | 2014-05-02 | 2015-05-01 | Pneumatic tire |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106457922A true CN106457922A (en) | 2017-02-22 |
| CN106457922B CN106457922B (en) | 2019-01-22 |
Family
ID=54358728
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201580021587.7A Expired - Fee Related CN106457922B (en) | 2014-05-02 | 2015-05-01 | Pneumatic tire |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP6032240B2 (en) |
| CN (1) | CN106457922B (en) |
| WO (1) | WO2015167007A1 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109278479A (en) * | 2017-07-19 | 2019-01-29 | 住友橡胶工业株式会社 | Tire |
| CN112339504A (en) * | 2019-08-07 | 2021-02-09 | 通伊欧轮胎株式会社 | Pneumatic tire |
| CN112384379A (en) * | 2018-08-30 | 2021-02-19 | 横滨橡胶株式会社 | Pneumatic tire |
| CN114641400A (en) * | 2019-10-29 | 2022-06-17 | 株式会社普利司通 | Pneumatic tire |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP7035550B2 (en) | 2018-01-18 | 2022-03-15 | 横浜ゴム株式会社 | Pneumatic tires |
| JP7119529B2 (en) * | 2018-04-19 | 2022-08-17 | 横浜ゴム株式会社 | pneumatic tire |
| JP7178254B2 (en) * | 2018-12-20 | 2022-11-25 | Ｔｏｙｏ Ｔｉｒｅ株式会社 | pneumatic tire |
| CN115157935A (en) * | 2022-07-20 | 2022-10-11 | 中策橡胶集团股份有限公司 | Resonance sound absorption noise reduction tire |
| CN115157934A (en) * | 2022-07-20 | 2022-10-11 | 中策橡胶集团股份有限公司 | Tire capable of disturbing air flow and reducing noise |
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| JP2000255216A (en) * | 1999-01-05 | 2000-09-19 | Yokohama Rubber Co Ltd:The | Pneumatic radial tire |
| JP2001277814A (en) * | 2000-03-30 | 2001-10-10 | Yokohama Rubber Co Ltd:The | Pneumatic tire for winter |
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| JP2007314137A (en) * | 2006-05-29 | 2007-12-06 | Bridgestone Corp | Pneumatic tire |
| JP2009012671A (en) * | 2007-07-06 | 2009-01-22 | Bridgestone Corp | Pneumatic tire |
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| JP2013103579A (en) * | 2011-11-11 | 2013-05-30 | Bridgestone Corp | Pneumatic tire |
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|---|---|---|---|---|
| JP3365686B2 (en) * | 1994-06-09 | 2003-01-14 | オーツタイヤ株式会社 | Pneumatic tire |
| JP5909141B2 (en) * | 2011-11-04 | 2016-04-26 | 株式会社ブリヂストン | Pneumatic tire |
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2014
- 2014-05-02 JP JP2014095423A patent/JP6032240B2/en active Active
-
2015
- 2015-05-01 WO PCT/JP2015/063063 patent/WO2015167007A1/en active Application Filing
- 2015-05-01 CN CN201580021587.7A patent/CN106457922B/en not_active Expired - Fee Related
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|---|---|---|---|---|
| JP2000255216A (en) * | 1999-01-05 | 2000-09-19 | Yokohama Rubber Co Ltd:The | Pneumatic radial tire |
| JP2001277814A (en) * | 2000-03-30 | 2001-10-10 | Yokohama Rubber Co Ltd:The | Pneumatic tire for winter |
| JP2004026158A (en) * | 2003-10-20 | 2004-01-29 | Bridgestone Corp | Studless pneumatic tire for heavy load |
| JP2006056459A (en) * | 2004-08-23 | 2006-03-02 | Sumitomo Rubber Ind Ltd | Pneumatic tire |
| JP2007314137A (en) * | 2006-05-29 | 2007-12-06 | Bridgestone Corp | Pneumatic tire |
| JP2009012671A (en) * | 2007-07-06 | 2009-01-22 | Bridgestone Corp | Pneumatic tire |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109278479A (en) * | 2017-07-19 | 2019-01-29 | 住友橡胶工业株式会社 | Tire |
| CN109278479B (en) * | 2017-07-19 | 2022-07-22 | 住友橡胶工业株式会社 | Tyre for vehicle wheels |
| CN112384379A (en) * | 2018-08-30 | 2021-02-19 | 横滨橡胶株式会社 | Pneumatic tire |
| CN112384379B (en) * | 2018-08-30 | 2022-09-20 | 横滨橡胶株式会社 | Pneumatic tire |
| CN112339504A (en) * | 2019-08-07 | 2021-02-09 | 通伊欧轮胎株式会社 | Pneumatic tire |
| CN114641400A (en) * | 2019-10-29 | 2022-06-17 | 株式会社普利司通 | Pneumatic tire |
| CN114641400B (en) * | 2019-10-29 | 2024-03-15 | 株式会社普利司通 | Pneumatic tire |
Also Published As
| Publication number | Publication date |
|---|---|
| JP6032240B2 (en) | 2016-11-24 |
| CN106457922B (en) | 2019-01-22 |
| WO2015167007A1 (en) | 2015-11-05 |
| JP2015212119A (en) | 2015-11-26 |
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