CN115703308A - Anti-stone-clamping tire pattern structure - Google Patents
Anti-stone-clamping tire pattern structure Download PDFInfo
- Publication number
- CN115703308A CN115703308A CN202110894147.XA CN202110894147A CN115703308A CN 115703308 A CN115703308 A CN 115703308A CN 202110894147 A CN202110894147 A CN 202110894147A CN 115703308 A CN115703308 A CN 115703308A
- Authority
- CN
- China
- Prior art keywords
- groove
- tire
- stone
- height
- tyre
- 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.)
- Pending
Links
- 239000004575 stone Substances 0.000 claims abstract description 32
- 230000002265 prevention Effects 0.000 claims description 18
- 230000000694 effects Effects 0.000 description 8
- 230000017525 heat dissipation Effects 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000001605 fetal effect Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
Images
Landscapes
- Tires In General (AREA)
Abstract
The invention mainly provides a stone-clamping-proof tyre pattern structure, which at least has a tyre groove in the circumferential direction of the tyre surface, the tyre groove is provided with a groove bottom and two groove walls adjacent to the groove bottom, a raised rib is raised from the groove bottom in the tyre groove and continuously surrounds the tyre groove of the tyre, the raised rib is a multi-curved surface convex rib, the raised rib comprises a first surface, a second surface and a third surface, wherein two ends of the second surface are respectively connected with the first surface and the third surface and are arranged on a platform, the platform is not adjacent to the two groove walls, and through the pattern structure, the stone-clamping-proof pattern can generate creeping during the running of the tyre, so that stones can be discharged, the stones can be prevented from being trapped deeper, and meanwhile, the raised rib can increase the heat transfer area and the convection of air, so that the heat can be rapidly transferred to the air, thereby reducing the temperature of the groove bottom and the raised rib, prolonging the service life of the tyre and improving the safety.
Description
Technical Field
The present invention relates to a groove structure, and more particularly to a design of a pattern in a groove of a tire tread, which combines with a convex step design of a groove bottom in the groove to improve the anti-stone-clamping performance of the tire and achieve the effect of reducing the temperature of the groove.
Background
Most of the transportation vehicles generally use the rolling of wheels to make the vehicle body move forward or backward, and the tires are the medium between the ground and the vehicle body, and utilize the shock-absorbing property of plastic materials to buffer the impact force from the ground when the vehicle body moves, so as to improve the riding comfort.
The carcass of a tire is provided with support, members such as high-strength cord plies, belt layers or metal belts are embedded in the carcass, and the tread of the tire is provided with a plurality of treads to improve drainage and ground gripping.
Recently, the tire technology has developed towards the function of preventing stone entrapment, mainly to solve the problem that when the tire runs, especially when meeting or not laying road conditions, small broken stones often enter and are trapped in the tire grooves, and the stone entrapment situation often causes the drainage performance of the tire to be reduced, especially when the stone entrapment situation occurs in the tire for a bus or a truck with a high load, a concentrated stress is generated at the periphery of the tire groove blocked by the small broken stones under the long-term gravity, so that cracks begin to be generated, the service life is shortened, and in severe cases, even the tire burst damages the running safety.
There is known a stone-trapping prevention tire technology in which a groove of a tire is provided with a texture protruding from a groove bottom and is asymmetrically arranged to prevent a stone-trapping situation, for example, a pneumatic tire disclosed in U.S. Pat. No. 8,225,832, in which a tread portion has a plurality of main grooves extending in a circumferential direction and is divided into a plurality of blocks, and the stone-trapping prevention tire is characterized in that: the groove bottom of at least one circumferential main groove is provided with the protruding portion, the length of the protruding portion extends along the circumferential direction, the height of the protruding portion changes in a wave shape along the circumferential direction, the protruding portion and at least one groove wall of the circumferential main groove are connected through the connecting portion, and the connecting portion connects the protruding portion and the groove wall of the circumferential main groove at the maximum position of the height of the protruding portion.
Further, there is a tire stone trapping preventing structure, such as a pneumatic tire having a tread with projected streaks at the bottom of grooves and a tire mold for manufacturing the tire disclosed in U.S. Pat. No. 7,980,281, which provides a pneumatic tire in which a groove is provided on the tread, and a land portion divided by the groove, characterized in that: the protruding strip extends along the circumferential groove and comprises a head part and a base, wherein the head part protrudes towards the outer side of the tire, and the base is narrower than the head part and is connected with the groove bottom and the head part.
Disclosure of Invention
In view of the above, the present invention discloses a stone-trapping prevention tire pattern structure, the tire tread of which at least has a groove in the tread circumferential direction, the groove has a groove bottom and two groove walls adjacent to the groove bottom, and a plurality of protruding ribs protrude from the groove bottom between the two groove walls in the groove, the stone-trapping prevention tire pattern structure is characterized in that: the raised rib is a multi-curved surface convex rib and comprises a first surface, a second surface and a third surface, wherein two ends of the second surface are respectively connected with the first surface and the third surface.
Furthermore, the first surface, the second surface and the third surface are cambered surfaces.
Further, the width of the protruding rib is 70% -90% of the width of the platform.
Further, the platform extends upwards from the bottom of the groove by a height.
Further, the first length of the first surface is equal to the third length of the third surface.
Further, the first length of the first surface is 50% -70% of the second length of the second surface.
Further, the third length of the third surface is 50% to 70% of the second length of the second surface.
Further, the first height of the first surface is 40% -50% of the second height of the second surface.
Further, the third height of the third surface is 40% -50% of the second height of the second surface.
Further, the width of the platform is 15% -45% of the width of the tire groove.
The raised ribs in the tire groove can deform due to the rotation of the tire during the traveling of the tire, so that stones are discharged to prevent the stones from sinking and deepening, and meanwhile, the raised ribs can increase the heat transfer area and the convection of air, so that heat is quickly transferred to the air, the temperature of the groove bottom and the raised ribs is reduced, and the service life and the safety of the tire are improved.
(efficacy against Prior Art)
The invention mainly aims to provide a stone-clamping-preventing tire pattern structure, wherein a plurality of protruding ribs are distributed in a tire groove of a tire surface, the protruding ribs are multi-curved-surface convex ribs, different height changes and different length changes are arranged in the tire groove, and in addition, special curved surfaces generated by the height and length changes are added, so that when a tire runs, stones clamped by the tire groove can creep or twist and deform due to the load and rolling of the tire, and the stone clamping is eliminated.
Another objective of the present invention is to provide a stone-trapping prevention tire pattern structure, which can reduce the probability of stone trapping due to the stone-trapping prevention structure, but also due to the stone-trapping prevention structure, the temperature of the bottom of the groove after the tire is running is higher than that of the pattern without stone-trapping prevention structure, which has a bad effect on the life of the tire.
Another objective of the present invention is to provide a stone-trapping prevention tire pattern structure, in which the raised ribs in the tire grooves are disposed on the platform of the groove bottom and are not connected to the groove walls on both sides, so that the drainage function of the tire grooves can be maintained.
Drawings
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
FIG. 1 is a perspective view of a tire with a partial pattern according to a preferred embodiment of the present invention.
FIG. 2 is a perspective view of a tire partially sectioned in accordance with a preferred embodiment of the present invention.
FIG. 3 is a partial front view of a tire according to a preferred embodiment of the present invention.
FIG. 4 is a schematic longitudinal cross-sectional view of a tire according to a preferred embodiment of the present invention.
FIG. 5 is a partial cross-sectional view of the tire in the circumferential direction in accordance with a preferred embodiment of the present invention.
FIG. 6 is an enlarged partial cross-sectional view of the tire in the circumferential direction according to the preferred embodiment of the present invention.
FIG. 7 is an enlarged sectional view of a part of the cell in the circumferential direction according to the preferred embodiment of the present invention.
FIG. 8 is a partially enlarged perspective view of the unit according to the preferred embodiment of the present invention.
FIG. 9 is an enlarged partial cross-sectional view in the longitudinal direction of a tire according to a fourth embodiment of the present invention.
Description of the reference numerals
10. A tire;
20. a fetal furrow;
21. the bottom of the ditch;
22. the wall is ditched;
23. a tread;
w is the width of the groove;
l1 a first length;
l2 a second length;
l3 third length;
w1 platform width;
w2 protrusion rib width;
30. a raised rib;
31. a first surface;
32. a second surface;
33. a third surface;
34. a platform;
h1 A first height;
h2 A second height;
h3 A third height;
h platform height.
Detailed Description
The technical solution in the embodiment of the present invention is clearly and completely described below with reference to the drawings in the embodiment of the present invention. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, but the present invention may be practiced in other ways than those specifically described and will be readily apparent to those of ordinary skill in the art without departing from the spirit of the present invention, and therefore the present invention is not limited to the specific embodiments disclosed below.
Referring to fig. 1 to 6, in order to provide a preferred embodiment of a stone-trapping preventing tire pattern structure of the present invention, the tread 23 of the tire 10 is provided with at least one groove 20 along the circumferential direction of the tire, the groove 20 has a groove bottom 21 and two groove walls 22 adjacent to the groove bottom 21, a protruding rib 30 protrudes from the groove bottom 21 in the groove 20 and continuously surrounds the groove 20 of the tire 10, the protruding rib 30 is a multi-curved rib, the protruding rib 30 includes a first surface 31, a second surface 32, and a third surface 33, wherein the second surface 32 is connected to the first surface 31 and the third surface 33 at two ends, respectively, and is disposed on a platform 34, and the platform 34 is not adjacent to the two groove walls 22.
With reference to fig. 7 to 9, the heights of the first surface 31, the second surface 32, and the third surface 33 of the protruding rib 30 of the present invention from the upper surface of the platform 34 are H1, H2, and H3, respectively, the height of the platform 34 is H4, the lengths of the first surface 31, the second surface 32, and the third surface 33 of each set of protruding ribs 30 are shown in fig. 7, L1 is equal to the distance projected in the tire circumferential direction between the tangent point of the two arc surfaces of the first surface 31 and the second surface 32 and the lowest point of the first surface 31, L3 is equal to the distance projected in the tire circumferential direction between the tangent point of the two arc surfaces of the third surface 33 and the second surface 32 and the lowest point of the third surface 33, L2 is equal to the distance projected in the tire circumferential direction between the two tangent points, the width of the platform 34 is W1, the width of the protruding rib 30 is W2, which is the distance between the two virtual intersection points (the platform extension line and the protruding rib extension line), and the width of the groove 20 is W.
With reference to fig. 7 and 8, the first surface 31 and the third surface 33 of the protruding rib 30 are respectively connected to two ends of the second surface 32, the first surface 31, the second surface 32, and the third surface 33 are all arc surfaces, and they are connected to form a multi-curved continuous rib, and the first surface 31 and the third surface 33 can be designed symmetrically or asymmetrically with the second surface 32 as a center, so the length L1 of the first surface 31 can be greater than, equal to, or less than the length L3 of the third surface 33, and the height H1 of the first surface 31 and the height H3 of the third surface 33 are both less than the height H2 of the second surface 32.
With reference to fig. 2 to 7, the present invention is directed to a stone-trapping prevention tire pattern structure, wherein a plurality of protruding ribs 30 are disposed in a sipe 20 of a tread 23, the protruding ribs 30 are multi-curved ribs, the height variation in the sipe 20 from the top of a platform 34 in the radial direction of the tire includes a first height H1, a second height H2, and a third height H3, the length variation in the circumferential direction of the tire is different, the first length L1 and the third length L3 are 40% to 80% of the second length L2, the first height H1 and the third height H3 are 30% to 60% of the second height H2, and a special curved surface, such as a rib having multi-curved surfaces, can be formed by the above length and height variations, particularly when the first length L1 and the third length L3 are between 50% to 70% of the second length L2 and the first height H1 and the third height H3 are between 40% of the second height H2, the effective air flow rate of the first height H1 and the third height H3 is between 40% of the second height H2, and the effective air flow rate of the irregular air flow and the three-dimensional variation can be increased, thereby not only facilitating the formation of the more effective heat dissipation.
When the tire 10 is running, the stones clamped by the tire groove 20 will be twisted by the multi-curved surface convex ribs to prevent the stones from continuously entering the tire groove, and when the tire 10 continues to roll, the stones are removed by twisting the multi-curved surface convex ribs 30, so as to achieve the effect of preventing stones from being clamped, and improve the service life and the safety performance of the tire.
Referring to fig. 8 and 9, the raised rib 30 of the present invention has a highest height H2 (compared to H1 and H3), when the tire rotates, the stone is removed due to the difference in size between the stones, the length difference and the height difference are favorable for removing the stone, the ratio of the length difference is defined as (L2-L1)/L2 or (L2-L3)/L2, and the ratio of the height difference is defined as (H2-H1)/H2 or (H2-H3)/H2, when the ratio of the length difference is higher than 50% or the ratio of the length difference is lower than 30%, when the ratio of the height difference is higher than 60% or the ratio of the height difference is lower than 50%, the stone removing effect is not good, and even the stone is likely to be trapped, and the heat dissipation effect is hindered when the tire is running due to the stone trapping, the temperature of the raised when the tire 10 is running, the heat of the raised rib 21 is allowed to be transferred from the bottom platform 34 of the raised rib 30 to the top of the raised rib, and the heat transfer area of the raised rib is reduced from the raised by the air at a temperature of 7.82, and the raised rib is reduced by the heat transfer from the air at a temperature of 7.82, which is lower than that of the conventional air, and the conventional air at a temperature of the raised rib 7.7.82, the conventional air at a temperature of the raised rib, which is about 7.7.7.7.7 ℃.
Referring to fig. 9, the width W1 of the platform 34 under the protruding rib 30 is 15% -45% of the width W of the whole tire groove 20, the width of the protruding rib is 70% -90% of the width of the platform, if less than 70% will result in poor stone removing effect, if more than 90% will affect the drainage function, therefore the platform 34 is only disposed on the groove bottom 21 and is not connected with the groove walls 22 at both sides of the tire groove 20, and the remaining gap provides better drainage function.
In summary, the present invention discloses a stone-trapping-preventing tire pattern structure, which utilizes the raised ribs with multiple curved surfaces to be arranged at proper positions in the pattern tire grooves of the tire tread, particularly the raised ribs connected to the groove bottom of the tire groove are not connected with the groove wall, and the height and length of the raised ribs are matched according to various specifications of tires, so as to improve the stone-trapping-preventing effect and maintain the drainage performance, effectively reduce the temperature of the groove bottom and the raised ribs, ensure the operation and the service life of the tire, and obtain a road tire with high practicability, so that the whole has industrial practicability and cost benefit.
It should be understood that the above-described embodiments of the present invention and the technical principles applied thereto are intended to be covered by the present invention if the functional effects of the present invention are not beyond the content of the description and the attached drawings.
Claims (10)
1. A tread of a tire having at least one groove in a circumferential direction of the tread, the groove having a groove bottom and two groove walls adjacent to the groove bottom, a plurality of projecting ribs projecting from the groove bottom between the two groove walls in the groove, characterized in that: the raised rib is arranged on a platform which is not adjacent to the two side groove walls, the raised rib is a multi-curved surface convex rib and comprises a first surface, a second surface and a third surface, wherein two ends of the second surface are respectively connected with the first surface and the third surface.
2. The stone-entrapment-preventing tire pattern structure of claim 1, wherein the first surface, the second surface and the third surface are cambered surfaces.
3. The stone entrapment prevention sipe structure of claim 1, wherein the width of the protruding rib is 70% to 90% of the platform width.
4. The stone entrapment prevention sipe structure of claim 1, wherein the platform extends a height up from the trench bottom.
5. The stone entrapment prevention sipe structure of claim 1, wherein the first length of the first surface is equal to the third length of the third surface.
6. The stone entrapment prevention sipe structure of claim 1, wherein the first length of the first surface is 50% to 70% of the second length of the second surface.
7. The stone entrapment prevention tire tread configuration of claim 1, wherein the third length of the third surface is 50% to 70% of the second length of the second surface.
8. The stone entrapment prevention tire tread configuration of claim 1, wherein the first height of the first surface is 40% to 50% of the second height of the second surface.
9. The stone entrapment prevention tire tread configuration of claim 1, wherein the third height of the third surface is 40% to 50% of the second height of the second surface.
10. The stone entrapment prevention tire tread configuration of claim 1, wherein the width of the platform is 15% to 45% of the width of the sipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110894147.XA CN115703308A (en) | 2021-08-05 | 2021-08-05 | Anti-stone-clamping tire pattern structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110894147.XA CN115703308A (en) | 2021-08-05 | 2021-08-05 | Anti-stone-clamping tire pattern structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115703308A true CN115703308A (en) | 2023-02-17 |
Family
ID=85178889
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110894147.XA Pending CN115703308A (en) | 2021-08-05 | 2021-08-05 | Anti-stone-clamping tire pattern structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115703308A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11301211A (en) * | 1998-04-15 | 1999-11-02 | Ohtsu Tire & Rubber Co Ltd :The | Pneumatic tire having rib pattern |
| JP2004155382A (en) * | 2002-11-08 | 2004-06-03 | Bridgestone Corp | Pneumatic tire |
| CN202703142U (en) * | 2012-04-25 | 2013-01-30 | 厦门正新海燕轮胎有限公司 | Stone clamping prevention structure of pneumatic tire tread groove |
| CN111278667A (en) * | 2017-11-03 | 2020-06-12 | 大陆轮胎德国有限公司 | Multipurpose vehicle tyre |
| US20210138843A1 (en) * | 2017-08-02 | 2021-05-13 | The Yokohama Rubber Co., Ltd. | Pneumatic Tire |
-
2021
- 2021-08-05 CN CN202110894147.XA patent/CN115703308A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11301211A (en) * | 1998-04-15 | 1999-11-02 | Ohtsu Tire & Rubber Co Ltd :The | Pneumatic tire having rib pattern |
| JP2004155382A (en) * | 2002-11-08 | 2004-06-03 | Bridgestone Corp | Pneumatic tire |
| CN202703142U (en) * | 2012-04-25 | 2013-01-30 | 厦门正新海燕轮胎有限公司 | Stone clamping prevention structure of pneumatic tire tread groove |
| US20210138843A1 (en) * | 2017-08-02 | 2021-05-13 | The Yokohama Rubber Co., Ltd. | Pneumatic Tire |
| CN111278667A (en) * | 2017-11-03 | 2020-06-12 | 大陆轮胎德国有限公司 | Multipurpose vehicle tyre |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP2555238Y2 (en) | Pneumatic tire | |
| JP5044289B2 (en) | Pneumatic tire | |
| US9469160B2 (en) | Tire with tread having blocks having cutout portions | |
| US6439284B1 (en) | Tread for a pneumatic tire including aquachannel | |
| JP2004262295A (en) | Heavy duty pneumatic tire for construction vehicle | |
| KR20120098472A (en) | Pneumatic tire | |
| CN112124008B (en) | pneumatic tire | |
| EP2529953B1 (en) | Tyre | |
| CN208774430U (en) | A kind of pattern structure on tire tread | |
| JP6110070B2 (en) | tire | |
| TW201406570A (en) | Stone-clipping prevention structure of tire grooves | |
| JP5698622B2 (en) | tire | |
| CN110834496B (en) | Tire for running on rough terrain | |
| CN216507748U (en) | Tyre tube | |
| CN115703308A (en) | Anti-stone-clamping tire pattern structure | |
| JP4473689B2 (en) | Pneumatic tire | |
| JP2004075056A (en) | Off-the-road tire | |
| JPH0885308A (en) | Pneumatic radial tire | |
| JP2019217968A (en) | Pneumatic tire | |
| EP1021306B1 (en) | Tread for a pneumatic tire | |
| CN112566793B (en) | Tire for motorcycle | |
| TWI780852B (en) | Tire pattern structure for preventing stone trapping | |
| JP4437431B2 (en) | Pneumatic tire | |
| CN216401086U (en) | Tire pattern and semi-steel radial tire | |
| KR101010750B1 (en) | A heavy-duty pneumatic radial tire |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |