CN111806162A - Tyre capable of reinforcing drainage performance - Google Patents
Tyre capable of reinforcing drainage performance Download PDFInfo
- Publication number
- CN111806162A CN111806162A CN201911240810.3A CN201911240810A CN111806162A CN 111806162 A CN111806162 A CN 111806162A CN 201911240810 A CN201911240810 A CN 201911240810A CN 111806162 A CN111806162 A CN 111806162A
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- tread
- groove
- section
- grooves
- tire
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- 230000003014 reinforcing effect Effects 0.000 title description 2
- 230000002708 enhancing effect Effects 0.000 claims abstract description 9
- 238000011161 development Methods 0.000 claims description 4
- 230000001965 increasing effect Effects 0.000 description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 7
- 238000005452 bending Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000005299 abrasion Methods 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 210000003462 vein Anatomy 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
- B60C11/00—Tyre tread bands; Tread patterns; Anti-skid inserts
- B60C11/03—Tread patterns
- B60C11/0304—Asymmetric 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
- B60C11/13—Tread patterns characterised by the groove cross-section, e.g. for buttressing or preventing stone-trapping
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Tires In General (AREA)
Abstract
A tire capable of enhancing drainage performance comprises a tread portion, wherein the tread portion comprises two tread ends, a tread center line and a half tread spreading width are defined between the two tread ends, a plurality of first grooves are arranged on the tread portion, the first grooves are distributed on two sides of the tread center line in a staggered mode, the first grooves are all arranged in a first area, the half tread spreading width ranges from 10% to 90%, each first groove is provided with a first groove section and a second groove section which are connected with each other, the first groove section is relatively close to the tread center line, the second groove section is relatively close to the tread ends, the included angle between a first extending line of the first groove section and the tread center line ranges from 9 degrees to 12 degrees, and the included angle between a second extending line of the second groove section and the tread center line ranges from 50 degrees to 55 degrees.
Description
Technical Field
The present invention relates to a tire, and more particularly to a tire with enhanced drainage performance.
Background
In order to adapt the tire to wet and slippery road surfaces, the tread of the tire is molded with a tread structure, so that the tread structure is utilized to assist water drainage.
How to provide a better design for the shape, size, number, distribution position and the like of grooves of a tire tread structure so that the tire can give consideration to different performances such as grip performance, drainage performance, guidance performance, comfort and the like is a direction of research and development in various fields.
As for the tire having improved drainage performance, there are, for example, "pneumatic tire for racing" of chinese patent publication No. CN103991338B and "motorcycle tire" of chinese patent publication No. CN102574428B, in which the tread of the tire mainly has pattern main grooves symmetrically and alternately arranged around the center line of the tread, and the pattern main grooves extend toward the outer side of the tread, so that water on the road surface can be drained from the center of the tread to the outer side of the tire along the pattern main grooves.
However, the first straight line of the pattern main groove in CN103991338B is parallel to the tread center line, has a groove segment in a partially non-drainage direction, and does not have drainage guiding property. The first transverse groove of CN102574428B is extended through the end edge of the tread in a diverging manner, which reduces the tire contact area and affects the tire grip performance during over-bending.
Disclosure of Invention
The invention aims to provide a tire capable of enhancing drainage performance, so that the tire can better achieve both the ground gripping performance and the drainage performance.
In order to achieve the above object, the present invention adopts the following technical means.
A tire with enhanced drainage performance comprises a tread portion including two tread ends, and a tread center line is defined between the two tread ends, and a half of the tread spreading width between the tread center line and the tread ends, the tread part is provided with a plurality of first grooves which are distributed on two sides of the central line of the tread in a staggered way, and a plurality of the first grooves are all arranged in a first area with the half tread spreading width between 10% and 90%, each first groove is provided with a first groove section and a second groove section which are mutually connected, the first groove section is relatively close to the central line of the tread, the second groove section is relatively close to the tread end, the included angle between a first extending line of the first groove section and the central line of the tread is between 9 DEG and 12 DEG, the included angle between a second extending line of the second groove section and the central line of the tread is between 50 DEG and 55 deg.
Furthermore, the first trench section and the second trench section can be connected by an arc trench section.
Further, the position of the minimum width of the first groove section may be between 10% and 15% of the half tread development width with respect to the tread centerline; the maximum width of the first groove section may be located between 40% and 47% of the half-tread development width with respect to the tread centerline.
Furthermore, the direction perpendicular to the central line of the tread is defined as a transverse direction, at least one second groove can be arranged between two adjacent first grooves, the extending direction of the second groove corresponds to the transverse direction, and the second groove is arranged in a second area of which the half tread spreading width is between 40% and 90%.
Furthermore, the second groove section of the first groove and the second groove have a lateral edge corresponding to the transverse direction, and the lateral edge of the second groove section and the lateral edge of the second groove can have a leading angle.
Further, a direction perpendicular to the tread center line is defined as a transverse direction, a plurality of second grooves can be arranged between two adjacent first grooves of the tread portion, the extending direction of the second grooves corresponds to the transverse direction, the second grooves are arranged in a second area of the half tread spreading width between 40% and 90%, a shallow trench can be further arranged on the tread portion, the shallow trench penetrates through the adjacent second grooves, and the shallow trench is arranged in a third area of the half tread spreading width between 20% and 80%.
Further, the shallow trench may comprise a first shallow trench section and a second shallow trench section, the first shallow trench section penetrates through a plurality of adjacent second trenches, the second shallow trench section extends in the transverse direction, and the first shallow trench section and the second shallow trench section have an intersection which is relatively close to the tread center line.
Further, the second groove section of the first groove and the second groove may have a side edge, and the side edge of the second groove section and the side edge of the second groove may have a lead angle.
Further, the total area of the first groove, the second groove and the shallow trench is defined as a total groove area, and the ratio of the total groove area to the total tread area of the tread portion is defined as an ungrounded sea ratio, which may be between 12% and 20%.
Further, the tread portion may not have a tread pattern at the tread centerline.
According to the technical characteristics, the following effects can be achieved:
1. the tread part is provided with first grooves which are distributed on two sides of the central line of the tread in a staggered way, and the first grooves are all arranged on the half tread with the spread width of between 10 and 90 percent so as to increase the contact area of the tire during bending. And the included angle between the first groove section of the first groove and the central line of the tread ranges from 9 degrees to 12 degrees, and the included angle between the second groove section of the first groove and the central line of the tread ranges from 50 degrees to 55 degrees, so that the drainage performance is enhanced.
2. The first groove section and the second groove section of the first groove are connected by an arc groove section to improve the smoothness of drainage.
3. At least one second groove is arranged between two adjacent first grooves, and the second groove is arranged between 40% and 90% of the half tread spreading width, so that the tire has a larger contact area with a straight road. In addition, the tread part does not have tyre veins at the central line of the tread, so that the tyre has larger contact area with a straight road, and can have straight traction and controllability.
4. A shallow trench may be further formed on the tread portion to penetrate the plurality of second grooves, thereby enhancing water-breaking performance.
5. The shallow trench is configured in the half tread surface with the expanding width of 20-80%, which is beneficial to reducing the rigidity of the tread part in the configuration area and increasing the tire over-bending and ground-gripping performance, and particularly has better over-bending and ground-gripping performance in wet land.
6. The second groove section of the first groove and the side edge of the second groove can be provided with a guide angle, so that the sliding effect with the road surface is increased by the guide angle, and the abrasion is reduced and the water breaking is assisted.
Drawings
Fig. 1 is a schematic perspective view of an embodiment of the present invention.
FIG. 2 is a schematic front view of an embodiment of the present invention.
FIG. 3 is a schematic side view of an embodiment of the present invention.
Fig. 4 is a partial schematic plan view of an embodiment of the present invention.
FIG. 5 is an enlarged partial plan view of an embodiment of the present invention.
Fig. 6 is a partial perspective view of the embodiment of the invention.
Fig. 7 is a first schematic developed plan view of the tread portion according to the embodiment of the present invention.
FIG. 8 is a schematic developed plan view of the tread portion of the second embodiment of the present invention.
FIG. 9A is a first cross-sectional view of a worn groove of a non-chamfered design.
FIG. 9B is a second cross-sectional view of a worn groove with no lead angle design.
FIG. 10A is a first cross-sectional view of a worn groove with a chamfered design.
FIG. 10B is a second cross-sectional view of a worn groove with a chamfered design.
[ notation ] to show
Tire capable of enhancing drainage performance
11 tread portion
12 Tread end
13 first groove
131 first trench section
132 second channel section
133 arc groove segment
134. 141 side edge
135. 142 lead angle
14 second groove
15 shallow trench
151 first shallow trench section
152 second shallow trench section
153 meeting place
L transverse direction
M tread center line
1/2M half tread center line
S1 first extension line
S2 second extension line
1/2W half tread spread width
Z1 first region
Z2 second region
Z3 third region
And the included angles theta 1 and theta 2.
Detailed Description
In combination with the above technical features, the main efficacy of the tire of the present invention for enhancing drainage performance will be clearly demonstrated in the following examples.
Referring to fig. 1 and 2, a tire 1 with enhanced water drainage performance according to an embodiment of the present invention is disclosed, and in this embodiment, the tire is a motorcycle tire, and includes a tread portion 11 and two tread ends 12. The tread portion 11 has a plurality of first grooves 13, and the first grooves 13 are distributed in the tread portion 11 in a staggered manner. Preferably, the tread portion 11 further has a plurality of second grooves 14 and a plurality of shallow grooves 15 disposed at intervals. The first grooves 13 may be V-shaped, and the shallow grooves 15 may be L-shaped and penetrate two adjacent second grooves 14. As shown in fig. 3, the first groove 13, the second groove 14 and the shallow groove 15 may all extend obliquely in substantially the same direction toward the tread end 12, so that water on the road surface may be discharged from the tread portion 11 toward the tread end 12 along the first groove 13, the second groove 14 and the shallow groove 15.
Referring to fig. 4, in detail, a tread center line M and a direction perpendicular to the tread center line M are defined between two of the tread ends 12 as a transverse direction L, and a half tread center line 1/2M is defined between the tread center line M and the tread ends 12. The tread portion 11 may not have tread at the tread centerline M to increase the contact area. The first grooves 13 are distributed on the tread portion 11 at two sides of the tread centerline M in a staggered manner, each first groove 13 has a first groove segment 131 and a second groove segment 132 connected to each other, the first groove segment 131 and the second groove segment 132 can be connected to each other by an arc-shaped groove segment 133, the first groove segment 131 can extend obliquely in a direction corresponding to the tread centerline M, and the second groove segment 132 can extend obliquely in a direction corresponding to the transverse direction L. Two second grooves 14 are provided at an interval between two adjacent first grooves 13 on the same side of the tread portion 11, and the extending direction of the second grooves 14 may extend obliquely with respect to the lateral direction L. The shallow trench 15 includes a first shallow trench section 151 and a second shallow trench section 152, the first shallow trench section 151 can extend obliquely in a direction corresponding to the tread centerline M, the first shallow trench section 151 penetrates through the adjacent second trenches 14, the second shallow trench section 152 can extend obliquely in a direction corresponding to the transverse direction L, and the first shallow trench section 151 and the second shallow trench section 152 have an intersection 153, the intersection 153 being located relatively close to the tread centerline M.
Referring to fig. 5, further, a half tread expanding width 1/2W may be defined between the tread centerline M and the tread end 12, in this embodiment, the first grooves 13 may be all disposed in a first region Z1 of the half tread expanding width 1/2W between about 10% and 90%; the second groove 14 is disposed in a second zone Z2 of the half tread spread width 1/2W between about 40% and 90%; the shallow trench 15 is disposed in a third region Z3 where the half tread development width 1/2W is between about 20% and 80%.
Referring to fig. 5, the first groove segment 131 is relatively close to the tread center line M, the second groove segment 132 is relatively close to the tread end 12, and an included angle θ 1 between a first extending line S1 of the first groove segment 131 and the tread center line M is between about 9 ° and 12 °, for example, the included angle θ 1 may be 10 °. An included angle θ 2 between a second extension line S2 of the second groove segment 132 and the tread center line M is between about 50 ° and 55 °, for example, the included angle θ 2 may be 55 °.
With continued reference to fig. 5, the minimum width of the first groove segment 131 is between 10% and 15% of the half tread deployment width 1/2W relative to the tread centerline M; the maximum width of the first groove segment 131 is between 40% and 47% of the half tread spread width 1/2W with respect to the tread center line M. In the present embodiment, the total area of the first groove 13, the second groove 14 and the shallow groove 15 is defined as a total groove area, and the ratio of the total groove area to the total tread area of the tread portion 11 is defined as a ratio of an ungrounded sea ratio, i.e. a ratio of the total groove area to the total tread area in the case of a tire being ungrounded, which may be between 12% and 20%, so as to provide a proper contact area and drainage performance.
Referring to fig. 6, preferably, a side edge 134, 141 is disposed between the opposite ends of the second groove section 132 of the first groove 13 and the second groove 14, and the side edge 134 of the second groove section 132 and the side edge 141 of the second groove 14 have a guiding angle 135, 142. Therefore, when the side edge 134 of the second groove section 132 and the side edge 141 of the second groove 14 contact the road surface, the sliding effect with the road surface can be increased by the guide angles 135 and 142, which is helpful for reducing the abrasion and assisting the water breaking.
Referring to fig. 7, in detail, in the embodiment, the unfolded plane of the tread portion 11 has a first ground contact area a1, the first ground contact area a1 is a straight-line driving ground contact range, a first ground contact area sea ratio is defined by a total area of all grooves of the first ground contact area a1, and the first ground contact area sea ratio can be increased from 11.6% to 11.68% and increased by 0.08% by increasing the guiding angle 135. Referring to fig. 8, the unfolded plane of the tread portion 11 has a second ground contact area a2, the second ground contact area a2 is the inclined angle driving ground contact area, the total area of all the grooves of the second ground contact area a2 defines a second ground contact area-to-sea ratio, and by increasing the conduction angles 135 and 142, the second ground contact area-to-sea ratio can be increased from 17.4% to 18.3% and increased by 0.9%. That is, the embodiment can improve the sea ratio and the water breaking property to improve the drainage performance no matter in the case of straight running contact or in the case of inclination running.
Referring to fig. 9A and 9B, the lead-free front wear groove T1 maintains substantially the same sea level as the back wear groove T2. As shown in fig. 10A in comparison to fig. 9A, the worn front groove T3 with the lead angle design has a larger sea ratio than the worn front groove T1 without the lead angle design. As fig. 10B compares to fig. 9B, the worn groove a4 still maintains the same sea ratio as the worn groove a2 of the non-chamfered design.
While the operation, use and efficacy of the present invention will be fully understood from the foregoing description of the preferred embodiments, it is to be understood that the present invention is not limited to the disclosed embodiments, but is capable of numerous modifications and variations, including variations, modifications, variations, equivalents, variations, changes, substitutions, modifications, variations, changes, variations, alterations, substitutions and equivalents, which fall within the spirit and scope of the invention.
Claims (10)
1. A tire capable of enhancing drainage performance, comprising a tread portion, the tread portion comprising two tread ends, a tread center line defined between the two tread ends, and a half of the tread spreading width between the tread center line and the tread ends, the tread portion having a plurality of first grooves thereon, characterized in that: the first grooves are distributed on two sides of the central line of the tread in a staggered mode, the first grooves are all arranged in a first area with the half tread spreading width of 10-90%, each first groove is provided with a first groove section and a second groove section which are connected with each other, the first groove section is relatively close to the central line of the tread, the second groove section is relatively close to the tread end, the included angle between a first extending line of the first groove section and the central line of the tread ranges from 9 degrees to 12 degrees, and the included angle between a second extending line of the second groove section and the central line of the tread ranges from 50 degrees to 55 degrees.
2. A tire having enhanced drainage as in claim 1, wherein: the first groove section is connected with the second groove section through an arc groove section.
3. A tire having enhanced drainage as in claim 1, wherein: the position of minimum width of the first groove section is relative to the tread central line and is between 10% and 15% of the half tread spreading width; the maximum width of the first groove section is between 40% and 47% of the half-tread development width with respect to the tread center line.
4. A drainage performance enhancing tire as claimed in any one of claims 1 to 3, wherein: the direction vertical to the central line of the tread is defined as a transverse direction, at least one second groove is arranged between two adjacent first grooves, the extending direction of the second groove corresponds to the transverse direction, and the second groove is arranged in a second area of the half tread with the spread width between 40% and 90%.
5. A tire having enhanced drainage as in claim 4, wherein: the second groove section of the first groove and the second groove both have a lateral edge corresponding to the transverse direction, and the lateral edge of the second groove section and the lateral edge of the second groove have a leading angle.
6. A drainage performance enhancing tire as claimed in any one of claims 1 to 3, wherein: defining the direction vertical to the central line of the tread as a transverse direction, wherein a plurality of second grooves are arranged between two adjacent first grooves of the tread part, the extending direction of the second grooves corresponds to the transverse direction, the second grooves are arranged in a second area of the half tread spreading width between 40% and 90%, a shallow trench is further arranged on the tread part, the shallow trench penetrates through the adjacent second grooves, and the shallow trench is arranged in a third area of the half tread spreading width between 20% and 80%.
7. A tire having enhanced drainage as in claim 6, wherein: the shallow trench comprises a first shallow trench section and a second shallow trench section, the first shallow trench section penetrates through a plurality of adjacent second grooves, the extending direction of the second shallow trench section corresponds to the transverse direction, and the first shallow trench section and the second shallow trench section are provided with a junction which is relatively close to the central line of the tread.
8. A tire having enhanced drainage as in claim 6, wherein: the second groove section of the first groove and the second groove both have a side edge, and the side edge of the second groove section and the side edge of the second groove both have a lead angle.
9. A tire having enhanced drainage as in claim 8, wherein: the total area of the first groove, the second groove and the shallow groove is defined as a total groove area, and the ratio of the total groove area to the total tread area of the tread portion is defined as an ungrounded sea ratio which is between 12% and 20%.
10. A drainage performance enhancing tire as claimed in any one of claims 1 to 3, wherein: the tread portion has no tread pattern at the tread centerline.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW108112918A TWI690434B (en) | 2019-04-12 | 2019-04-12 | Tire with enhanced drainage ability |
| TW108112918 | 2019-04-12 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111806162A true CN111806162A (en) | 2020-10-23 |
Family
ID=71132539
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911240810.3A Pending CN111806162A (en) | 2019-04-12 | 2019-12-06 | Tyre capable of reinforcing drainage performance |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN111806162A (en) |
| TW (1) | TWI690434B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI768792B (en) * | 2021-03-26 | 2022-06-21 | 正新橡膠工業股份有限公司 | Anti-uneven wear tire |
| CN115027183A (en) * | 2022-03-15 | 2022-09-09 | 厦门正新橡胶工业有限公司 | Tread pattern structure of tire |
| CN115122832A (en) * | 2021-03-26 | 2022-09-30 | 正新橡胶工业股份有限公司 | Tyre with anti-bias wear |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI797460B (en) * | 2020-07-06 | 2023-04-01 | 固滿德工業股份有限公司 | Rubber composition and manufacturing method and energy saving tire thereof |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI768792B (en) * | 2021-03-26 | 2022-06-21 | 正新橡膠工業股份有限公司 | Anti-uneven wear tire |
| CN115122832A (en) * | 2021-03-26 | 2022-09-30 | 正新橡胶工业股份有限公司 | Tyre with anti-bias wear |
| CN115122832B (en) * | 2021-03-26 | 2024-05-24 | 正新橡胶工业股份有限公司 | Tyre with anti-bias abrasion |
| CN115027183A (en) * | 2022-03-15 | 2022-09-09 | 厦门正新橡胶工业有限公司 | Tread pattern structure of tire |
| CN115027183B (en) * | 2022-03-15 | 2023-11-03 | 厦门正新橡胶工业有限公司 | Tread pattern structure of tire |
Also Published As
| Publication number | Publication date |
|---|---|
| TW202037502A (en) | 2020-10-16 |
| TWI690434B (en) | 2020-04-11 |
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Application publication date: 20201023 |
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| RJ01 | Rejection of invention patent application after publication |