CN212446978U - Tyre for motorcycle and electric vehicle - Google Patents
Tyre for motorcycle and electric vehicle Download PDFInfo
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- CN212446978U CN212446978U CN202020302467.2U CN202020302467U CN212446978U CN 212446978 U CN212446978 U CN 212446978U CN 202020302467 U CN202020302467 U CN 202020302467U CN 212446978 U CN212446978 U CN 212446978U
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Abstract
The utility model relates to a motorcycle tyre technical field especially relates to a motorcycle, electric motor car run-flat tire. The tire comprises a tire body, an air-retaining layer positioned on the inner side of the tire body, a cord fabric layer positioned on the outer side of the air-retaining layer, a buffer layer positioned on the radial outer side of the cord fabric layer and a reinforcing layer positioned on the inner side of the air-retaining layer; the tire body comprises a tire crown part, tire shoulder parts positioned at two sides of the tire crown part, a tire side part and a tire lip part below the two tire shoulder parts, and two ends of the cord fabric layer respectively bypass the tire lip part and are turned outwards; the bead part is provided with a steel wire ring; the reinforcing layer is arranged on the inner side of the air retention layer near the tire shoulder part, extends towards the tire crown part and the tire side part respectively and gradually reduces the thickness; the hardness of the rubber material of the reinforcing layer is greater than that of the sidewall rubber. The method can ensure that the motorcycle tire can still continuously run for 20km at the speed of 30km/h in a zero-air-pressure state, and simultaneously protect the air tightness of the motorcycle tire from being damaged until a next maintenance point is found.
Description
Technical Field
The utility model relates to a motorcycle tyre technical field especially relates to a motorcycle, electric motor car run-flat tire.
Background
The motorcycle is a two-wheeled or three-wheeled vehicle driven by a gasoline engine or an electric motor and steered by operating a front wheel by a handle, is light, flexible and rapid to drive, is widely used for patrol, passenger and goods transportation and the like, and is also used as a sports apparatus. However, even when the tire is worn on a bad road or a rough road, the tire is easily damaged by puncture, and the tire is likely to run flat and cannot run, so that the run flat tire used in a motorcycle is a new market demand.
Disclosure of Invention
An object of the utility model is to provide a motorcycle, electric motor car run-flat tire can guarantee that the motorcycle tire still can continue to travel 20km with 30 km/h's speed under the zero atmospheric pressure state, and the protection motorcycle tire gas tightness does not receive destruction simultaneously, until finding next maintenance point.
To achieve the above object, the solution of the present invention is:
to achieve the above object, the solution of the present invention is:
a kind of motorcycle, motor vehicle run-flat tire, this tire includes the tire body, the air-proof layer located in body inboard of the tire, cord fabric located in air-proof layer outside, buffer layer located in radial outside of cord fabric and enhancement layer located in air-proof layer inboard; the tire body comprises a tire crown part, tire shoulder parts positioned at two sides of the tire crown part, a tire side part and a tire lip part below the two tire shoulder parts, and two ends of the cord fabric layer respectively bypass the tire lip part and are turned outwards; the bead part is provided with a steel wire ring; the reinforcing layer is arranged on the inner side of the air retention layer near the tire shoulder part, extends towards the tire crown part and the tire side part respectively and gradually reduces the thickness; the hardness of the rubber material of the reinforcing layer is greater than that of the sidewall rubber.
As a further improvement, the difference between the hardness of the rubber materials of the reinforcing layer and the sidewall is 7-10.
As a further improvement, the rubber hardness of the reinforcing layer is 60-70 Shore hardness; the rubber material hardness of the sidewall rubber is 52-62 Shore hardness.
As a further improvement, the thickness of the reinforcing layer is reduced from the tire shoulder part to the tire crown part by a larger range than the thickness of the reinforcing layer from the tire shoulder part to the tire side part.
As a further improvement, the thickness of the two sides of the reinforcing layer is 0.6-1.5 mm.
As a further improvement, the thickness of the middle end of the reinforcing layer is 1.5-3 mm.
As a further improvement, the radial distance between the tail end of the reinforcing layer and the turning end point of the cord fabric layer is 5-10 mm.
As a further improvement, the color of the rubber of the reinforcing layer is orange yellow or deep blue.
After the technical scheme is adopted, the utility model discloses a near the air-tight bed inboard setting of child shoulder the enhancement layer, wherein, the enhancement layer is the rubber material of high rigidity, and the sidewall rubber is the rubber material of low rigidity, the enhancement layer is extended and the taper thickness to crown portion, side wall portion respectively by the child shoulder, can realize following efficiency:
1. the utility model discloses can effectively exert the buffering bent rich deformation of enhancement layer when low wind pressure uses, effectively avoid the enhancement layer of tire and inboard guarantor layer to take place the phenomenon of delaminating destruction, do not influence the rolling resistance of tire, promote the durability of tire.
2. The rubber hardness of the reinforcing layer is greater than that of the sidewall rubber, so that the sidewall part has good supporting rigidity, the phenomenon that the air-retaining layer is abraded when the tire runs in a run-flat mode can be avoided, the durability of the tire is improved, and the weight increasing proportion of the whole tire is lower than 5%.
3. The enhancement layer is extended and the taper thickness to crown portion, side wall portion respectively by the tire shoulder, so when the tire runs under-inflation, can realize supporting strength effectively at the tire shoulder portion, satisfies the durability that the high load was gone to the tire shoulder can produce the cushion strength of taper toward crown portion region, tire shoulder toward the regional homoenergetic of side wall portion, exerts sufficient buffering deformability during the travel, ensures the comfort performance of tire.
4. By mounting the vehicle with the test tires, the tires were deflated to zero pressure and continued to run before the test, preferably up to 30km/h at zero pressure for 50km without tire damage. The comfort of the tire is evaluated by adopting the sense of a driver, and the durability of the tire is finally evaluated by the driving mileage of the tire, so that the comfort and the durability of the embodiment are both superior to those of the prior embodiment.
Drawings
Fig. 1 is a schematic structural view of a run-flat tire for motorcycles and electric vehicles according to the present invention.
Detailed Description
The following explains embodiments of the present invention with reference to the drawings:
as shown in fig. 1, a run-flat tire for motorcycles and electric vehicles includes:
the tyre comprises a tyre body, at least one air-retaining layer 2 positioned on the inner side of the tyre body, at least two cord fabric layers 3 and 4 positioned on the outer side of the air-retaining layer 2, and at least one buffer layer 5 positioned on the radial outer side of the cord fabric layer 4, wherein the tyre body comprises a crown part 6, shoulder parts 7 positioned on two sides of the crown part 6, a sidewall part 8 and a bead part 1 below the two shoulder parts 7, and two ends of the cord fabric layers 3 and 4 respectively bypass the bead part 1 and are turned outwards.
In the present embodiment, two plies 3 and 4 are used, and one ply is used for the breaker 5, but the number of plies and breaker layers is not limited to this, and two or more plies may be used. The bead part 1 is provided with a bead ring 10. A reinforcing layer 9 is provided on the inner side of the air retention layer 2 near the shoulder portion 7. Enhancement layer 9 is the rubber material of 60 ~ 70 scopes of shao shi hardness, and its rubber layer with guarantor layer 2 can realize good combination, simultaneously the utility model discloses can effectively exert the buffering bent rich deformation of enhancement layer 9 when low wind pressure uses, effectively avoid tire enhancement layer 9 and guarantor layer 2 to take place the phenomenon of delaminating destruction, promote the durability of tire.
Further, the reinforcing layer 9 extends from the shoulder portion 7 toward the crown portion 6 and the sidewall portion 8, respectively, and is gradually reduced in thickness. Thus, when the tire runs in a short of air, the tire shoulder part 7 can effectively support the strength, the durability of high-load running is met, the tire shoulder part 7 can generate gradually reduced buffer strength towards the area of the tire crown part 6 and the area of the tire shoulder part 7 towards the area of the tire side part 8, the sufficient buffer deformation capacity is exerted during running, and the comfort performance of the tire is ensured. The thickness a of the reinforcing layer 9 is the largest at the center B of the shoulder portion 7, and the width of the reinforcing layer 9 from the shoulder portion 7 to the crown portion 6 is larger than the width of the reinforcing layer 9 from the shoulder portion 7 to the sidewall portion 8, that is: at the position of the crown portion 6 or the sidewall portion 8 from the center of the shoulder portion by the same arc length, the thickness of the reinforcing layer 9 at the crown portion 6 is smaller than that at the sidewall portion 8. So, adopt less thickness reduction range to ensure in side wall portion 8 the utility model discloses a side wall holding power ensures the durability that the tire traveled, adopts great thickness reduction range at tire crown portion 6 simultaneously, can avoid excessively strengthening tire crown portion 6's intensity, produces the trend that the travelling comfort of tire traveles descends.
In order to further ensure the comfort performance of the tire, the radial distance from the tail end of the reinforcing layer 9 to the turning end point of the cord fabric layer is 5-10 mm, and when the radial distance from the tail end of the reinforcing layer 9 to the turning end point of the cord fabric layer is too small, the high load requirement of a vehicle cannot be effectively supported, so that the running durability of the tire is reduced; when the radial distance of the trailing end of the reinforcing layer 9 beyond the ply turn-up end point is too large, the strength of the sidewall portion 8 of the tire is excessively increased, resulting in a reduction in the running comfort of the tire. The hardness of the rubber material of the reinforcing layer 9 is greater than that of the rubber material of the tire side portion 8, the difference between the hardness of the rubber material of the reinforcing layer 9 and that of the rubber material of the tire side portion 8 is 7-10, good supporting rigidity of the tire lip portion 1 can be guaranteed, the phenomenon that the tire is out of round when running in a run-flat state is avoided, and therefore the durability of the tire is improved.
Test examples
By adopting the structure of the utility model shown in figure 1, various tyres for motorcycles are manufactured in a trial way and the performances of the tyres are tested and evaluated.
1. The test method comprises the following steps: after the tire is assembled in place, the valve inside is pulled out, the vehicle runs under zero air pressure at the speed of 20km/h, and the vehicle is ridden by a single person, wherein the total weight of the vehicle is 130kg +/-5 kg.
2. And (3) judging criteria: the tire does not drop off, the inner liner is not damaged, and the tire is used as a condition for judging that the 20km run-flat passes the test.
3. And (3) testing results: when the test driver runs at zero air pressure, the test driver turns, accelerates and brakes suddenly, the tire has no knocking over phenomenon, and the tire runs at zero air pressure for 100km in a good condition. The appearance and the inner air-tight layer of the tire are inspected without damage after the tire is disassembled.
According to the tire with the novel support rubber, the orange support rubber is additionally arranged on the tire shoulder and the tire side, the sinking of the tire is slowed down when the air pressure is zero, the air-tight layer is protected, and the tire can completely run for 20 kilometers through the air pressure according to the judgment of an actual test result.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention, including by way of illustration of the disclosed embodiments. Various modifications to these embodiments will be readily apparent to those skilled in the art. The general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (7)
1. A kind of motorcycle, motor vehicle run-flat tire, this tire includes the tire body, the air-proof layer (2) located in body inboard of the tire, cord fabric (3, 4) located in air-proof layer (2), the cushion (5) located in radial outboard of cord fabric (3, 4); the tyre body comprises a tyre crown part (6), tyre shoulder parts (7) positioned at two sides of the tyre crown part (6), a tyre side part (8) below the two tyre shoulder parts (7) and a tyre lip part (1), wherein two ends of the cord fabric layers (3 and 4) respectively pass around the tyre lip part (1) and are turned outwards, and the tyre lip part (1) is provided with a steel wire ring (10); the tire is characterized in that a reinforcing layer (9) is arranged on the inner side of the air-retaining layer (2) near the tire shoulder (7), and the hardness of rubber of the reinforcing layer (9) is greater than that of the tire side portion (8); the reinforcing layer (9) extends towards the crown part (6) and the side wall part (8) respectively and gradually reduces in thickness.
2. The run-flat tire for motorcycles and electric vehicles as claimed in claim 1, wherein the difference between the rubber hardness of the reinforcing layer (9) and the rubber hardness of the sidewall portion (8) is 7 to 10.
3. A run-flat tire for motorcycles and electric vehicles as claimed in claim 1 or 2, wherein said reinforcing layer (9) has a rubber hardness of 60 to 70 shore; the rubber hardness of the sidewall portion (8) is 52-62 Shore hardness.
4. A run-flat tire for motorcycles and electric vehicles as claimed in claim 1, wherein the thickness of said reinforcing layer (9) decreases from said shoulder portion (7) to said crown portion (6) to a larger extent than the thickness of said reinforcing layer (9) decreases from said shoulder portion (7) to said sidewall portion (8).
5. The run-flat tire for motorcycles and electric vehicles as claimed in claim 1 or 4, wherein the thickness of the middle end of the reinforcing layer (9) is 1.5 to 3mm, and the thickness of both sides of the reinforcing layer (9) is 0.6 to 1.5 mm.
6. A run-flat tire for motorcycles and electric vehicles as claimed in claim 1, wherein the radial distance from the tail end of said reinforcing layer (9) to the turning end point of the carcass ply is 5 to 10 mm.
7. A run-flat tyre for motorcycles and electric vehicles as claimed in claim 1, wherein said reinforcing layer (9) has a compound color of orange yellow or deep blue.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020302467.2U CN212446978U (en) | 2020-03-12 | 2020-03-12 | Tyre for motorcycle and electric vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020302467.2U CN212446978U (en) | 2020-03-12 | 2020-03-12 | Tyre for motorcycle and electric vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212446978U true CN212446978U (en) | 2021-02-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020302467.2U Active CN212446978U (en) | 2020-03-12 | 2020-03-12 | Tyre for motorcycle and electric vehicle |
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| Country | Link |
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| CN (1) | CN212446978U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111251785A (en) * | 2020-03-12 | 2020-06-09 | 中策橡胶集团有限公司 | Tyre for motorcycle and electric vehicle |
-
2020
- 2020-03-12 CN CN202020302467.2U patent/CN212446978U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111251785A (en) * | 2020-03-12 | 2020-06-09 | 中策橡胶集团有限公司 | Tyre for motorcycle and electric vehicle |
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Address after: 310018 No. 1, No. 1 Street, Qiantang District, Hangzhou, Zhejiang Patentee after: Zhongce Rubber Group Co.,Ltd. Address before: 310018 No.2, 10th Street, economic and Technological Development Zone, Jianggan District, Hangzhou City, Zhejiang Province Patentee before: ZHONGCE RUBBER GROUP Co.,Ltd. |