CN104691242B - Pneumatic tyre - Google Patents
Pneumatic tyre Download PDFInfo
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- CN104691242B CN104691242B CN201410443850.9A CN201410443850A CN104691242B CN 104691242 B CN104691242 B CN 104691242B CN 201410443850 A CN201410443850 A CN 201410443850A CN 104691242 B CN104691242 B CN 104691242B
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- tire
- pattern block
- transverse holes
- width direction
- shoulder
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Abstract
The invention relates to a pneumatic tyre. The invention provides a pneumatic tyre which prevents reduction of tractive performance under the condition of serious wearing of a tyre surface, and prevents clamping stones. The pneumatic tyre (1) is characterized in that a side wall (40) on the outer side of the tyre width direction of a tyre shoulder pattern block (4) is provided with a horizontal hole (41) facing inward. The horizontal hole (41) faces the outer side of the tyre width direction, and expands towards the height direction of the tyre shoulder pattern block (4) and the periphery direction of the tyre,
Description
The application enjoys the priority of this application based on Japan patent application 2013-254241.
Technical field
The present invention relates to a kind of pneumatic tire.
Background technology
As a kind of method for preventing the zigzag of tyre surface from wearing and tearing, can enumerate and send as an envoy to pattern block on tire shoulder increase and improve tire
The rigid method of shoulder pattern block.But, if increasing pattern block on tire shoulder, the groove number on the outside of tire width direction becomes
It is few, therefore, in the case where the abrasion of tyre surface aggravates, hauling ability declines.
As described in patent document 1-3, in order to prevent the phenomenon, it may be considered that from the width outside of tyre surface
Side wall towards tyre surface width inner side, formed transverse holes.If being formed with this transverse holes, aggravate in the abrasion of tyre surface
In the case of, the space of transverse holes is exposed to ground plane, and is played a role as tread groove.Therefore, it is possible to prevent traction
Hydraulic performance decline.
Prior art literature：
Patent document
Patent document 1：Japan opens the microfilm of clear No. 61-157004 in fact
Patent document 2：Japanese Laid-Open 2002-29217 publications
Patent document 3：The flat 2-60805 publications of Japanese Laid-Open
The content of the invention
The invention problem to be solved
But, if the space of transverse holes is exposed to ground plane, it is susceptible to stone and is embedded into the phenomenon of the part, so-called
Horsestone.
The problem to be solved by the present invention is that, there is provided a kind of traction being prevented from the case of the abrasion aggravation of tyre surface
Hydraulic performance decline, and it is prevented from the pneumatic tire of horsestone.
The method for solving problem
The pneumatic tire of the present embodiment is characterised by, pattern block on tire shoulder is formed with tyre surface, in the tire shoulder decorative pattern
Side wall on the outside of the tire width direction of block, is formed with the transverse holes towards inner side, and the transverse holes are with towards tyre width
Direction outside, extends to the short transverse and tire circumferential direction of the pattern block on tire shoulder.
The effect of invention
The hauling ability that the pneumatic tire of the present embodiment is prevented from the case where treadwear aggravates declines, and
It is prevented from horsestone.
Brief description of the drawings
Fig. 1 shows the tread contour of pneumatic tire 1.
Fig. 2 is the partial sectional view of pneumatic tire 1.
Fig. 3 is the sectional view rectangular with tire width direction for showing transverse holes 41.A () is the example of quadrangle, (b)
It is trapezoidal example.
Fig. 4 is the partial sectional view of the pneumatic tire of variation.A () is the partial sectional view of variation 1, (b) is deformation
The partial sectional view of example 2.
Fig. 5 is from the figure in terms of tire outside diameter side during the pattern block on tire shoulder of comparative example and embodiment.A () is the figure of comparative example,
B () is the figure of embodiment.
Fig. 6 is the partial sectional view of the tire of comparative example 1.
Fig. 7 is the chart of the evaluation result for representing hauling ability.A () is the evaluation result of comparative example 1, (b) is comparative example 2
And the evaluation result of embodiment 1, (c) is the evaluation result of embodiment 2, and (d) is the evaluation result of embodiment 3.
Specific embodiment
The pneumatic tire 1 to embodiment is illustrated with reference to the accompanying drawings.
(1) structure of pneumatic tire 1
In fig. 1 it is shown that the tread contour of the pneumatic tire 1 of the present embodiment.
For pneumatic tire 1, the part on the inside of the tire width direction of tyre surface 2 has central (center) pattern block
3, the part on the outside of tire width direction has pattern block on tire shoulder 4.
From during center running lug 3, it is in quadrangle in terms of the ground plane side of tyre surface 2.Center running lug 3 is in tire circumferential direction
It is arranged at equal intervals, and forms ranks.It (is in Fig. 1 two rows that center running lug 3 forms multiple ranks in tire width direction
Row).In adjacent ranks, center running lug 3 staggers to be formed with half size.
In the both sides of tire width direction, pattern block on tire shoulder 4 respectively arranges a ranks along tire circumferential direction.With regard to tire shoulder
For pattern block 4, the pattern block with the same shape of center running lug 3 staggers half decorative pattern block size relative to adjacent ranks
And arranged along tire circumferential direction, and groove between two adjacent pattern blocks of tire circumferential direction is landfilled and structure
Into the shape of.
As shown in Figure 1, 2, the side wall 40 on the outside of the tire width direction of pattern block on tire shoulder 4, is formed with wide towards tire
Transverse holes 41 on the inside of degree direction.Formed transverse holes 41 position refer to, the central position of the tire circumferential direction of pattern block on tire shoulder 4
Put, in other words, the position that pattern block on tire shoulder 4 is halved in tire circumferential direction.
As shown in Fig. 2 transverse holes 41 are with towards the outside of tire width direction, its to pattern block on tire shoulder 4 height side
Extended to (tire footpath is outward).The bottom of transverse holes 41 is (in the face for forming transverse holes 41, near tire radial direction inner side
Part) it is located at bottom land position.Now, it is not to form transverse holes 41 at transverse holes 41 that bottom land position refers to, and assumes that shape
The bottom land position of in the case of the groove of the groove same shape between two pattern block on tire shoulders of Cheng Youyu 4, the 4, groove.From
And, from the bottom of transverse holes 41 to the height of the ground plane 42 of pattern block on tire shoulder 4, and between two pattern block on tire shoulders 4,4
Bottom land to pattern block on tire shoulder 4 ground plane 42 it is highly consistent.
In addition, as shown in figure 1, transverse holes 41 are as towards the outside of tire width direction, it expands to tire circumferential direction
Exhibition.
As the section shapes transverse holes 41 for meeting these conditions and that tire width direction is rectangular, have polygonal,
Circular and ellipse etc..Exist as polygonal：Quadrangle as shown in Fig. 3 (a)；Or as shown in Fig. 3 (b), two bases
It is parallel with ground plane and more trapezoidal etc. than another bottom side length closer to the base of ground plane.Additionally, in order to prevent to split
Line (crack), it is also possible to which quadrangle or polygonal corner such as trapezoidal are formed into circle.
In addition to tyre surface 2, other belong to known features to the pneumatic tire 1 of embodiment.
(2) effect
In the pneumatic tire 1 of the embodiment above, pattern block on tire shoulder 4 have combine two shapes of center running lug 3
Shape.Therefore, pattern block on tire shoulder 4 becomes big and its rigidity is big.So as to tyre surface 2 is difficult to form zigzag abrasion.
On the other hand, pattern block on tire shoulder 4 is big and the groove on the outside of tire width direction is few, so as to traction can be caused
The decline of performance.But, transverse holes 41 are formed with pattern block on tire shoulder 4.If the abrasion aggravation of pattern block on tire shoulder 4, transverse holes
41 space is exposed to the ground plane of tyre surface 2, and plays the effect of groove.Therefore, it is possible to prevent what the abrasion in tyre surface 2 from aggravating
In the case of hauling ability decline.
Transverse holes 41 extend with towards the outside of tire width direction to the short transverse of pattern block on tire shoulder 4.Therefore,
If the abrasion aggravation of pattern block on tire shoulder 4, transverse holes 41 are gradually exposed to the ground plane of tire from tire width direction outside.Cause
This, if the abrasion aggravation of pattern block on tire shoulder 4, hauling ability is lentamente recovered, or the decline of hauling ability becomes slow.
The bottom of transverse holes 41 is located at bottom land position, therefore, even if before abrasion carries out to pattern block on tire shoulder 4 disappearing
A moment, it is also possible to ensure a certain degree of hauling ability.
Transverse holes 41 are as towards the outside of tire width direction, it extends to tire circumferential direction.Therefore, even if laterally
The space in hole 41 is exposed to tyre contact patch, and stone is entered at this, and the stone also can be to the outside of tire width direction
Discharge.So, it is prevented from horsestone of tyre surface 2.
The center of the circumferencial direction of pattern block on tire shoulder 4 is formed in due to transverse holes 41, therefore, if the space dew of transverse holes 41
For tyre contact patch, then in the tire circumferential direction both sides across the space, formed and the almost identical size of center running lug 3
Pattern block.In such manner, it is possible to obtain with following situation identical hauling ability, i.e., be configured with the outside of tire width direction with
The situation of the pattern block of the formed objects of center running lug 3.
Side wall for forming the groove between two pattern block on tire shoulders 4, with the side that groove width increases towards ground plane direction
Formula is inclined.If the section shape of transverse holes 41 is as described above trapezoidal, tire ground connection is exposed in the space of transverse holes 41
In the case of face, for formed the side wall in the space with for formed the side wall of the groove be it is inclined in an identical manner,
Therefore, the shape in the space is similar to the shape of the groove.Therefore, the space can play and the groove identical
Effect, and it is able to ensure that hauling ability.
(3) variation
(3-1) variation 1
As shown in Fig. 4 (a), transverse holes 41a can also insertion to the tire width direction inner side of pattern block on tire shoulder 4.
In this case, the water of the groove on the inside of the tire width direction of pattern block on tire shoulder 4, can be wide to tire well
The outside discharge of degree direction.
(3-2) variation 2
As shown in Fig. 4 (b), the face of the tire radial direction inner side of transverse holes 41b, it is also possible to positioned at, tire higher than bottom land position
The position of the short transverse of shoulder pattern block 4.
In this case, as long as the abrasion of tyre surface 2 is not aggravated to heavens, hauling ability is also ensured that.
(3-3) other variations
Tire tread pattern is not limited to the decorative pattern of Fig. 1.For example, in order to reduce the noise produced by the tire in traveling, tire
The length of the tire circumferential direction of shoulder pattern block or center running lug is formed in each pattern block uneven also may be used.In addition, to tire
The size of shoulder pattern block is not limited, and is, for example, less than that size in the embodiment above also may be used.Even if small in pattern block on tire shoulder
In the case of, if abrasion aggravation, hauling ability can also decline.But, if on the outside of the tire width direction of pattern block on tire shoulder
Side wall is formed with transverse holes, then the decline of hauling ability is also prevented from the case of aggravation of wearing and tearing.
The position of transverse holes is formed, as long as the side wall on the outside of the tire width direction of pattern block on tire shoulder, but simultaneously
It is not limited to the central position of the circumferencial direction of pattern block on tire shoulder.
(4) embodiment
Pneumatic tire to conventional example, comparative example and embodiment is evaluated.By the structure of these pneumatic tires in table
Shown in 1.
Described " short " refers in the length of tire circumferential direction of pattern block on tire shoulder this project, with central decorative pattern
The length identical length of the tire circumferential direction of block." length " refers to, by two adjacent central decorative patterns of tire circumferential direction
The length that the length of block is added with the length of the tire circumferential direction of groove between the two.The only tire shoulder decorative pattern of conventional example 1
The length of the tire circumferential direction of block is " short ".Additionally, the groove width between pattern block on tire shoulder is all identical.
Transverse holes are not formed with the pattern block on tire shoulder of the pneumatic tire of each conventional example.
The transverse holes of each embodiment are as towards tire width direction outside, the transverse holes of each embodiment are to pattern block on tire shoulder
Short transverse extension (opening portion is big).The transverse holes of comparative example 2 identically with the transverse holes of each embodiment, with towards tire
Width outside, extends to the short transverse of pattern block on tire shoulder.On the other hand, as shown in fig. 6, the transverse holes of comparative example 1 not
Extended to the short transverse of pattern block on tire shoulder.
As shown in Fig. 5 (a), the width of the tire circumferential direction of the transverse holes of the pneumatic tire of each comparative example is fixed.
As shown in Fig. 5 (b), for the transverse holes of the pneumatic tire of each embodiment, as towards tire width direction outside, it is to wheel
Tire circumferencial direction extends, so that opening portion becomes big (opening portion is big) in tire circumferential direction.
These tires have been carried out with the evaluation of zigzag abrasion, horsestone and traction.By zigzag abrasion and hauling ability
Appreciation condition shown in table 2.
The evaluation result of zigzag abrasion, horsestone is shown in table 1.On zigzag abrasion, relative to conventional example 1
Pneumatic tire, the evaluation result of other pneumatic tires is more excellent.Hereby it is possible to be more difficult to be formed when confirming that pattern block on tire shoulder is big
Zigzag is worn and torn.
In addition, the phenomenon of horsestone is there occurs in any tire of comparative example, but in any tire of embodiment
There is no the phenomenon of horsestone.Hereby it is possible to transverse holes are confirmed with towards tire width direction outside, to tire circumference side
To the brought effect of extension.
Fig. 7 shows the change of the hauling ability relative to tread wear rate.As shown in (a)-(d) dotted lines, conventional example 2 is led
Draw performance lower than the hauling ability of conventional example 1.For the hauling ability of comparative example and the tire of embodiment, do not have in abrasion
In the state of aggravation, represent and know clearly and the change of the identical of conventional example 2, but become excellent in the state of aggravation of wearing and tearing, and
Present and change with the identical of conventional example 1.Among these, in the case of the tire of comparative example 1, hauling ability drops to necessarily
The level of conventional example 1 is discontinuously returned to after level.On the other hand, in the case of the tire of comparative example 2 and embodiment, lead
Draw performance from the level for horizontally and continuously returning to conventional example 1 relatively higher.From the above be able to confirm that to：In tire shoulder decorative pattern
In the case that block is formed with transverse holes, the decline of the hauling ability being prevented under abrasion aggravation state.In addition, being able to confirm that
Arrive：Transverse holes with towards tire width direction outside, to pattern block on tire shoulder short transverse extend in the case of, hauling ability
Change become slow.
【Table 1】
【Table 2】
Claims (4)
1. a kind of pneumatic tire, it is characterised in that
Pattern block on tire shoulder is formed with tyre surface,
Side wall on the outside of the tire width direction of the pattern block on tire shoulder, is formed with the transverse holes towards inner side,
The transverse holes with towards tire width direction outside, short transverse and tire circumference side to the pattern block on tire shoulder
To extension,
The section shape transverse holes and that tire width direction is rectangular is that two bases are parallel with ground plane, and more
It is more trapezoidal than another bottom side length close to the base of ground plane.
2. pneumatic tire according to claim 1, it is characterised in that
The transverse holes are formed in the center of the circumferencial direction of the pattern block on tire shoulder.
3. pneumatic tire according to claim 1 and 2, it is characterised in that
On the inside of the transverse holes insertion to the tire width direction of the pattern block on tire shoulder.
4. pneumatic tire according to claim 1 and 2, it is characterised in that
The bottom of the transverse holes is located at bottom land position.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2013-254241 | 2013-12-09 | ||
| JP2013254241 | 2013-12-09 | ||
| JP2013254241A JP6165614B2 (en) | 2013-12-09 | 2013-12-09 | Pneumatic tire |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104691242A CN104691242A (en) | 2015-06-10 |
| CN104691242B true CN104691242B (en) | 2017-05-24 |
Family
ID=53338955
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410443850.9A Active CN104691242B (en) | 2013-12-09 | 2014-09-02 | Pneumatic tyre |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP6165614B2 (en) |
| CN (1) | CN104691242B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107020892A (en) * | 2017-06-21 | 2017-08-08 | 吉林大学 | A kind of pneumatic tire structure with bionical anti-skid design |
| CN113635714A (en) * | 2021-07-19 | 2021-11-12 | 德州玲珑轮胎有限公司 | Mine tire |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101352996A (en) * | 2007-07-27 | 2009-01-28 | 横滨橡胶株式会社 | Pneumatic tire |
Family Cites Families (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58133904A (en) * | 1982-01-30 | 1983-08-09 | Ohtsu Tire & Rubber Co Ltd | Reclaimed tire |
| JPH056165Y2 (en) * | 1985-03-20 | 1993-02-17 | ||
| JPH07215015A (en) * | 1994-02-04 | 1995-08-15 | Ohtsu Tire & Rubber Co Ltd :The | Tire |
| JP3927277B2 (en) * | 1997-04-21 | 2007-06-06 | 株式会社ブリヂストン | Pneumatic tire for running on snowy and snowy roads |
| JP2002029217A (en) * | 2000-07-13 | 2002-01-29 | Bridgestone Corp | Pneumatic tire |
| DE60214915T2 (en) * | 2001-02-20 | 2007-04-19 | Société de Technologie Michelin | Mold and method for molding a tire tread |
| JP2004009886A (en) * | 2002-06-06 | 2004-01-15 | Yokohama Rubber Co Ltd:The | Pneumatic tire |
| JP4391814B2 (en) * | 2003-12-24 | 2009-12-24 | 株式会社ブリヂストン | Tire wear state estimation device |
| JP2007331597A (en) * | 2006-06-15 | 2007-12-27 | Bridgestone Corp | Precure tread and retreaded tire using the same |
| JP2009214674A (en) * | 2008-03-10 | 2009-09-24 | Yokohama Rubber Co Ltd:The | Pneumatic tire |
| CN101932457B (en) * | 2008-03-17 | 2014-02-12 | 米其林研究和技术股份有限公司 | Tire with apertured shoulder block for improved temperature control |
| JP5790213B2 (en) * | 2011-07-04 | 2015-10-07 | 横浜ゴム株式会社 | Rehabilitated tire and manufacturing method thereof |
| CN102887039A (en) * | 2012-10-23 | 2013-01-23 | 厦门正新橡胶工业有限公司 | Stone-clamping preventing tyre |
-
2013
- 2013-12-09 JP JP2013254241A patent/JP6165614B2/en not_active Expired - Fee Related
-
2014
- 2014-09-02 CN CN201410443850.9A patent/CN104691242B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101352996A (en) * | 2007-07-27 | 2009-01-28 | 横滨橡胶株式会社 | Pneumatic tire |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2015112913A (en) | 2015-06-22 |
| JP6165614B2 (en) | 2017-07-19 |
| CN104691242A (en) | 2015-06-10 |
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