CN111516435A - Stone clamping prevention tire and vehicle - Google Patents
Stone clamping prevention tire and vehicle Download PDFInfo
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- CN111516435A CN111516435A CN202010414881.7A CN202010414881A CN111516435A CN 111516435 A CN111516435 A CN 111516435A CN 202010414881 A CN202010414881 A CN 202010414881A CN 111516435 A CN111516435 A CN 111516435A
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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
- B60C11/13—Tread patterns characterised by the groove cross-section, e.g. for buttressing or preventing stone-trapping
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Abstract
The invention provides a stone clamping preventing tire and a vehicle. This prevent pressing from both sides stone tire includes the tread, and the tread includes: the first main groove is positioned at the center line of the tread and extends along the circumferential direction of the tread, the width of the first main groove is a first preset width, and the depth of the first main groove is a first preset depth; the second main trench is parallel to the first main trench and is positioned on one side of the first main trench, the width of the second main trench is a second preset width, the depth of the second main trench is a second preset depth, the second preset width is smaller than the first preset width, and the second preset depth is smaller than the first preset depth; and the third main trench is parallel to the first main trench and is positioned on the other side of the first main trench, the width of the third main trench is a third preset width, the depth of the third main trench is a third preset depth, the third preset width is equal to or close to the second preset width, and the third preset depth is equal to or close to the second preset depth. The stone clamping preventing tire can ensure that the tread groove is not easy to clamp foreign matters in the running process of the tire, or can easily throw the foreign matters out after clamping the foreign matters.
Description
Technical Field
The invention relates to the technical field of vehicle tires, in particular to a stone clamping prevention tire and a vehicle.
Background
A tire for a vehicle has a carcass and a tread. The existing road surface is complicated, besides cement, asphalt and other pavement road surfaces, some non-pavement road surfaces or damaged cement road surfaces are also provided, and stones are often dispersed on the road surfaces. When a tire is driven on such a road surface, the tread pattern often has a pattern groove bottom that is easily embedded in stones and held in the groove. The trapped stones are not easily discharged even when the tire is running at high speed, and may be trapped deeper as the tire runs, so that the stones are pressed against the bottom of the groove for a long time and the rubber material of the bottom of the groove is easily punctured, which seriously affects the service life of the tire.
Therefore, the difficulty in designing the tire in the prior art is how to prevent the tire from trapping stones or easily discharging the trapped stones after trapping stones.
Disclosure of Invention
One object of the present invention is to solve the technical problem of the prior art that the tire is easy to clamp stones.
A further object of the present invention is to solve the technical problem in the prior art that the stones are not easy to be discharged after the stones are clamped in the tire.
In particular, the invention provides a stone-clamping-proof tire, which comprises a tire tread, wherein the hardness of the tire tread rubber is selected to be 65-68 Shore A, and the tire tread comprises:
a first main groove located at a center line of the tread and extending in a circumferential direction of the tread, a width of the first main groove being a first preset width, a depth of the first main groove being a first preset depth, the first preset width being any value in a range of 10.7-11.3 mm;
the second main ditch, it with first main ditch is parallel and is located one side of first main ditch, the width of second main ditch is the second and predetermines the width, the degree of depth of second main ditch is the second and predetermines the degree of depth, the second is predetermine the width and is less than first predetermines the width, the second is predetermine the degree of depth and is less than first predetermines the degree of depth.
Optionally, the tread further comprises:
and the third main trench is parallel to the first main trench and is positioned on the other side of the first main trench, the width of the third main trench is a third preset width, the depth of the third main trench is a third preset depth, the third preset width is equal to or close to the second preset width, and the third preset depth is equal to or close to the second preset depth.
Optionally, the first preset depth is any value in the range of less than or equal to 8 mm.
Optionally, the second preset width is any value in the range of 9.8-11 mm;
the second predetermined width is any value in the range of less than or equal to 7.5 mm.
Optionally, the draft bevel angle of the first main groove is any angle in the range of 12-15 degrees;
optionally, the draft bevel angle of the second main groove is any angle in the range of 12-15 degrees;
optionally, the draft bevel angle of the third main groove is any angle in the range of 12-15 °.
Optionally, the tread comprises a primary ground contact surface having a block steel sheet angle in any value in the range of 30-45 °;
optionally, the width of the block steel sheet of the main ground contact surface is any value in the range of 0.8-1.2 mm;
optionally, the depth of the block steel sheet of the main ground contact surface is any value in the range of 3-5 mm.
Optionally, the anti-entrapment tire further comprises a shoulder comprising a shoulder pattern having a groove depth configured to a gradual depth.
Optionally, the groove depth is tapered in a value in the range of 3-5.5 mm.
Optionally, the angle of the shoulder rib is any value in the range of 40-50 °;
optionally, the width of the steel sheet of the shoulder pattern is any value in the range of 0.8-1.2 mm;
optionally, the shoulder tread has a lug depth configured as a tapered depth.
Particularly, the invention further provides a vehicle comprising the stone-clamping-preventing tire.
According to the scheme of the invention, the first main groove and the second main groove which are large in width and moderate in depth are designed, and tread rubber with moderate hardness is matched, so that foreign matters are not easy to clamp in a tread groove in the running process of a tire, or the foreign matters can be easily thrown out after the foreign matters are clamped. In addition, the hardness of the tread rubber is any value of 65-68 Shore A, the hardness of the tread rubber in the range is moderate, stones can be prevented from being clamped or cut and torn by the stones due to the fact that the tread is too soft, and the requirement of NVH (noise vibration and harshness) properties of a vehicle can be prevented from being met due to the fact that the tread is too hard.
The width, the degree of depth, the angle design of this prevent pressing from both sides stone tire tread decorative pattern and cooperate the physical characteristics of tread rubber, have formed the characteristic that the tire is difficult for pressing from both sides the foreign matter on the tread groove. And to a certain extent, the stone which is clamped generates centrifugal force which is thrown out to the outside at a certain speed, so as to achieve the self-cleaning function, thereby achieving the purpose of clamping the stone at the lowest level and having the best capability of throwing the stone. Through tests, the number of stones contained is less than 55, and the predicted annual customer complaint is less than or equal to 1.
The above and other objects, advantages and features of the present invention will become more apparent to those skilled in the art from the following detailed description of specific embodiments thereof, taken in conjunction with the accompanying drawings.
Drawings
Some specific embodiments of the invention will be described in detail hereinafter, by way of illustration and not limitation, with reference to the accompanying drawings. The same reference numbers in the drawings identify the same or similar elements or components. Those skilled in the art will appreciate that the drawings are not necessarily drawn to scale. In the drawings:
FIG. 1 shows a cross-sectional view of an anti-entrapment tire according to one embodiment of the present invention;
FIG. 2 illustrates another angular cross-sectional view of an anti-entrapment tire according to one embodiment of the present invention;
in the figure: 1-tread, 2-first main groove, 3-second main groove, 4-third main groove, 5-main ground contact, 6-shoulder.
Detailed Description
The present invention provides a stone pinch resistant tire that is suitable for use with all types of tires having two, three, four, and five grooves. The following detailed description is given in conjunction with specific examples:
example 1:
FIG. 1 shows a cross-sectional view of an anti-entrapment tire according to one embodiment of the present invention. FIG. 2 illustrates another angular cross-sectional view of an anti-entrapment tire according to one embodiment of the present invention.
In the embodiment shown in fig. 1 and 2, the anti-trap tire comprises a tread 1, the hardness of the rubber of the tread 1 is selected to be 65-68 shore a, and the tread 1 comprises a first main groove 2 and a second main groove 3. The first main groove 2 is located at a center line C of the tread 1 and extends along a circumferential direction of the tread 1, a width of the first main groove 2 is a first preset width, and a depth of the first main groove 2 is a first preset depth. The first predetermined width a may be, for example, 10.7mm, 10.9mm, 11mm, 11.2mm, or 11.3mm, or any other value in the range of 10.7-11.3 mm. Any value within this range is selected for the width a of the first main grooves 2, and the size of the first main grooves is larger than or equal to the average value of the maximum sizes of the stones, so that the probability of clamping large, medium and small stones can be reduced. The second main trench 3 is parallel to the first main trench 2 and is located at one side of the first main trench 2, the width of the second main trench 3 is a second preset width, the depth of the second main trench 3 is a second preset depth, the second preset width is smaller than the first preset width, and the second preset depth is smaller than the first preset depth.
In this embodiment, the first predetermined depth d is 1mm, 2mm, 3mm, 4mm, 5mm, 6mm, 7mm or 8mm, but may be any other value in the range of 1-8 mm. The depth of the first main groove 2 is configured to be any value within this range, the depth thereof is shallow, and the shallow depth of the main groove improves the ability of the vehicle to throw out stones during traveling.
The second predetermined width b may be, for example, 9.8mm, 10mm, 10.2mm, 10.5mm, 10.8mm or 11mm, or any other value in the range of 9.8-11 mm. Selecting any value within this range for the width b of the second main groove 3 reduces the probability of trapping large, medium and small stones, while having a width slightly smaller than the width of the first main groove 2, thereby making it possible to improve other properties of the tire, such as grip, at the same time.
The second predetermined depth e is 1mm, 2mm, 3mm, 4mm, 5mm, 6mm, 7mm or 7.5mm, and may be any other value in the range of 1-7.5 mm. The depth of the second main groove 3 is set to any value within this range, and the depth is shallow, and the shallow depth of the main groove improves the capability of the vehicle to throw away stones during running. On the other hand, the depth of the second main groove 3 is slightly smaller than the depth of the first main groove 2, so that the ability of the second main groove 3 to trap foreign matter of a small size can be reduced.
According to the scheme of the invention, the first main grooves 2 and the second main grooves 3 which are wide and moderate in depth are designed, and the tread 1 rubber with moderate hardness is matched, so that foreign matters are not easy to clamp in a tread groove in the running process of a tire, or the foreign matters can be easily thrown out after the foreign matters are clamped. In addition, the hardness of the tread rubber is any value of 65-68 Shore A, the hardness of the tread rubber in the range is moderate, stones can be prevented from being clamped or cut and torn by the stones due to the fact that the tread 1 is too soft, and the requirement of NVH (noise vibration and harshness) properties of a vehicle can be prevented from being met due to the fact that the tread is too hard.
Example 2:
this embodiment differs from embodiment 1 in that in this embodiment the tread further comprises a third main groove 4. The third main trench 4 is parallel to the first main trench 2 and is located on the other side of the first main trench 2, the width of the third main trench 4 is a third preset width, the depth of the third main trench 4 is a third preset depth, the third preset width is equal to or close to the second preset width, and the third preset depth is equal to or close to the second preset depth.
The third preset width c of the third main groove 4 is equal to or similar to the second preset width b of the second main groove 3, and the third preset depth is equal to or similar to the second preset depth.
Example 3:
in this embodiment, draft angles of the first main groove 2, the second main groove 3 and the third main groove 4 are provided on the basis of embodiment 2.
Referring to fig. 1, the draft bevel angle α of the first main groove 2 is 12 °, 13 °, 14 °, or 15 °, and may be any other angle within a range of 12-15 °. The trapezoidal geometric dimension with the big top and the small bottom helps the capability of throwing out the stones during the running of the vehicle, and gradually kneads out the clamped stones and throws out the stones at a certain speed per hour, such as 35-40 km/h.
The draft bevel angle of the second main groove 3 and the third main groove 4 may be 12 °, 13 °, 14 °, or 15 °, or any other angle within the range of 12 to 15 °. The trapezoidal geometric dimension with the big top and the small bottom helps the capability of throwing out the stones during the running of the vehicle, and gradually kneads out the clamped stones and throws out the stones at a certain speed per hour, such as 35-40 km/h.
Example 4:
in this embodiment, the main contact surface 5 of the tread 1 is designed in addition to embodiment 1, embodiment 2, or embodiment 3.
Referring to fig. 1, the tread 1 includes a main contact surface 5, and the block steel sheet angle f of the main contact surface 5 may be, for example, 30 °, 35 °, 40 °, or 45 °, or may be any value in the range of 30 to 45 °. The width of the block steel sheet of the main ground contact surface 5 may be, for example, 0.8mm, 0.9mm, 1mm, 1.1mm, or 1.2mm, or may be any value in the range of 0.8 to 1.2 mm. The depth of the block steel sheet of the main ground contact surface 5 may be, for example, 3mm, 4mm, or 5mm, or may be any value in the range of 3 to 5 mm.
Example 5:
in this embodiment, the shoulder 6 of the anti-trap tire is redesigned on the basis of embodiment 1, embodiment 2, embodiment 3 or embodiment 4.
Referring to fig. 1 and 2, the anti-entrapment tire further includes a shoulder 6, and the shoulder 6 includes a shoulder pattern having a groove depth h configured to be a gradual depth. The groove depth h of the shoulder pattern is gradually varied in a value ranging from 3 to 5.5 mm. The tread groove depth of the tire shoulder patterns is designed to be gradually changed, so that fine stone chips can be prevented from being clamped to a large extent.
The angle g of the shoulder pattern steel plate is 40 degrees, 45 degrees or 50 degrees, and any other value in the range of 40-50 degrees can be adopted. The width of the shoulder pattern may be, for example, 0.8mm, 1mm or 1.2mm, or may be any other value in the range of 0.8 to 1.2 mm. The depth of the steel sheet of the tire shoulder pattern is gradually changed. By the design, fine stone chips clamped in the shoulder grooves can be discharged.
According to the scheme of the embodiment of the invention, the width, the depth and the angle of the tread pattern of the stone-clamping-preventing tire are designed and matched with the physical characteristics of tread rubber, so that the characteristic that foreign matters are not easily clamped on the tread pattern of the tire is formed. And to a certain extent, the stone which is clamped generates centrifugal force which is thrown out to the outside at a certain speed, so as to achieve the self-cleaning function, thereby achieving the purpose of clamping the stone at the lowest level and having the best capability of throwing the stone. Through tests, the number of stones contained is less than 55, and the predicted annual customer complaint is less than or equal to 1.
In particular, the invention also provides a vehicle comprising the anti-stone-clamping tire.
Thus, it should be appreciated by those skilled in the art that while a number of exemplary embodiments of the invention have been illustrated and described in detail herein, many other variations or modifications consistent with the principles of the invention may be directly determined or derived from the disclosure of the present invention without departing from the spirit and scope of the invention. Accordingly, the scope of the invention should be understood and interpreted to cover all such other variations or modifications.
Claims (10)
1. A stone-clamping-proof tire is characterized by comprising a tire tread (1), wherein the hardness of rubber of the tire tread (1) is selected to be 65-68 Shore A, and the tire tread (1) comprises:
a first main groove (2) which is positioned at the central line of the tread (1) and extends along the circumferential direction of the tread (1), wherein the width of the first main groove (2) is a first preset width, the depth of the first main groove (2) is a first preset depth, and the first preset width is any value in the range of 10.7-11.3 mm;
second main ditch (3), it with first main ditch (2) are parallel and are located one side of first main ditch (2), the width of second main ditch (3) is the second and predetermines the width, the degree of depth of second main ditch (3) is the second and predetermines the degree of depth, the second is predetermine the width and is less than first predetermined width, the second is predetermine the degree of depth and is less than first predetermined depth.
2. Anti-stone-entrapment tire according to claim 1, wherein the tread (1) further comprises:
and the third main ditch (4) is parallel to the first main ditch (2) and is positioned on the other side of the first main ditch (2), the width of the third main ditch (4) is a third preset width, the depth of the third main ditch (4) is a third preset depth, the third preset width is equal to or close to the second preset width, and the third preset depth is equal to or close to the second preset depth.
3. The stone pinch resistant tire of claim 2, wherein the first predetermined depth ranges from any value less than or equal to 8 mm.
4. The stone-entrapment-prevention tire of claim 3, wherein the second predetermined width is any value in the range of 9.8-11 mm;
the second predetermined width is any value in the range of less than or equal to 7.5 mm.
5. Stone pinch resistant tire according to any of claims 1 to 4, wherein the draft angle of the first main groove (2) is any angle in the range of 12-15 °;
optionally, the draft bevel angle of the second main groove (3) is any angle in the range of 12-15 degrees;
optionally, the draft angle of the third main groove (4) is any angle in the range of 12-15 degrees.
6. Stone pinch proof tire according to any of claims 1 to 3, wherein the tread (1) comprises a main tread (5), the block flap angle of the main tread (5) being any value in the range of 30-45 °;
optionally, the width of the block steel sheet of the main ground contact surface (5) is any value in the range of 0.8-1.2 mm;
optionally, the depth of the block steel sheet of the main ground contact surface (5) is any value in the range of 3-5 mm.
7. Anti-trap tire according to any of claims 1 to 3, further comprising a shoulder (6), the shoulder (6) comprising a shoulder pattern with a groove depth configured with a gradual depth.
8. The anti-entrapment tire of claim 7, wherein the groove depth of the shoulder patterns is tapered in a value in a range of 3-5.5 mm.
9. The anti-entrapment tire of claim 7, wherein the shoulder pattern has a lug angle of any value in the range of 40-50 °;
optionally, the width of the steel sheet of the shoulder pattern is any value in the range of 0.8-1.2 mm;
optionally, the shoulder tread has a lug depth configured as a tapered depth.
10. A vehicle comprising a stone-trapping resistant tire according to any one of claims 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010414881.7A CN111516435A (en) | 2020-05-15 | 2020-05-15 | Stone clamping prevention tire and vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010414881.7A CN111516435A (en) | 2020-05-15 | 2020-05-15 | Stone clamping prevention tire and vehicle |
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| Publication Number | Publication Date |
|---|---|
| CN111516435A true CN111516435A (en) | 2020-08-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010414881.7A Pending CN111516435A (en) | 2020-05-15 | 2020-05-15 | Stone clamping prevention tire and vehicle |
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| CN (1) | CN111516435A (en) |
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Application publication date: 20200811 |