CN115257238A - Shoulder-reinforced wide-base tire with small-angle winding type belt ply structure - Google Patents
Shoulder-reinforced wide-base tire with small-angle winding type belt ply structure Download PDFInfo
- Publication number
- CN115257238A CN115257238A CN202210975623.5A CN202210975623A CN115257238A CN 115257238 A CN115257238 A CN 115257238A CN 202210975623 A CN202210975623 A CN 202210975623A CN 115257238 A CN115257238 A CN 115257238A
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- China
- Prior art keywords
- belt
- tire
- shoulder
- angle
- end point
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- 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.)
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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
- B60C9/00—Reinforcements or ply arrangement of pneumatic tyres
- B60C9/18—Structure or arrangement of belts or breakers, crown-reinforcing or cushioning layers
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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
- B60C11/01—Shape of the shoulders between tread and sidewall, e.g. rounded, stepped or cantilevered
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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
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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
- B60C9/00—Reinforcements or ply arrangement of pneumatic tyres
- B60C9/02—Carcasses
- B60C9/14—Carcasses built-up with sheets, webs, or films of homogeneous material, e.g. synthetics, sheet metal, rubber
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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
- B60C9/00—Reinforcements or ply arrangement of pneumatic tyres
- B60C9/18—Structure or arrangement of belts or breakers, crown-reinforcing or cushioning layers
- B60C9/28—Structure or arrangement of belts or breakers, crown-reinforcing or cushioning layers characterised by the belt or breaker dimensions or curvature relative to carcass
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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
- B60C9/00—Reinforcements or ply arrangement of pneumatic tyres
- B60C9/02—Carcasses
- B60C9/14—Carcasses built-up with sheets, webs, or films of homogeneous material, e.g. synthetics, sheet metal, rubber
- B60C2009/145—Carcasses built-up with sheets, webs, or films of homogeneous material, e.g. synthetics, sheet metal, rubber at the inner side of the carcass structure
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/80—Technologies aiming to reduce greenhouse gasses emissions common to all road transportation technologies
- Y02T10/86—Optimisation of rolling resistance, e.g. weight reduction
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Tires In General (AREA)
Abstract
The invention relates to the technical field of tire manufacturing, in particular to a shoulder-reinforced wide-base tire with a small-angle winding type belt structure. The invention adopts a small-angle winding type belt structure, can hoop the tire and improve the grounding rectangular rate; when the tire is tightened, the thickness of the shoulder part is reduced and the heat generation is reduced through the differential design; and the shoulder crown belt protects the end point of the belt layer, so that the stress of the end point is dispersed, and the probability of end point damage is reduced.
Description
Technical Field
The invention relates to the technical field of tire manufacturing, in particular to a shoulder-reinforced wide-base tire with a small-angle winding type belt structure.
Background
Compared with the prior two parallel tires, the wide base tire has the advantages of convenient assembly and disassembly, light weight, low use cost and fuel efficiency
Higher, and the like, thereby reducing carbon emission. However, if the wide base tire is damaged, the replacement cost is higher than that of a common tire. Therefore, it is necessary to improve the durability of the wide base tire.
Compared with the common section wide tire, the wide base tire has the tread width 1.5 times that of the common tire. At this moment, according to the conventional belt design, because the belt is too wide, the middle section is not well hooped by the belt, so that certain arch is generated in the middle after inflation, when the tire is in contact with the ground, only two sides and the middle of the tire are worn, the abnormal abrasion phenomenon of the tire is caused, and the applicability and the safety performance of the tire are influenced. It can be seen that the belt design of conventional tires is significantly less desirable when applied to a wide base tire.
Meanwhile, since the tread is too wide, the shoulder of the wide base tire has high heat generation. However, the conventional belt structure applied to the wide base tire generally has a second belt width greater than the first belt width, and the third belt width is approximately equal to the fourth belt width, and the schematic diagram is as shown in fig. 7, which may cause the thickness of the shoulder of the tire to be thicker, and further aggravate the heat generation of the shoulder of the wide base tire.
Disclosure of Invention
Aiming at the problems that the wide base tire is high in replacement cost, difficult to tighten the tire tread and high in heat generation, the invention provides the wide base tire with the shoulder-reinforced and small-angle wound belt structure, and the tire can be tightened by adopting the small-angle wound belt structure, so that the grounding rectangular rate is improved; when the tire is tightened, the thickness of the shoulder part is reduced and the heat generation is reduced through the differential design; and the shoulder crown belt protects the end point of the belt layer, disperses the stress of the end point and reduces the probability of damaging the end point.
In order to achieve the purpose, the invention adopts the following technical scheme:
a shoulder-reinforced wide-base tire with a small-angle winding type belt structure comprises a tire body, a belt layer, a tire tread, a tire side and a tire bead, and is characterized in that the belt layer comprises a first belt layer, a second belt layer, a third belt layer, a fourth belt layer and a shoulder crown belt;
the width of the first belt ply is more than the width of the third belt ply, more than the width of the second belt ply and more than the width of the fourth belt ply; the first belt layer is attached to the inner ring of the tire body, the circumferential included angle between the steel wire and the tire is 20-30 degrees, and the direction of the steel wire inclines to the left; the second belted layer is arranged on the outer side of the first belted layer and is of a circumferential spiral winding structure, and the circumferential included angle between a steel wire and a tire is 0 degree; the third belt ply is arranged on the outer side of the second belt ply, the circumferential included angle between the steel wire and the tire is 10-20 degrees, and the direction of the steel wire inclines rightwards; the fourth belt ply is arranged on the outer side of the third belt ply, the circumferential included angle between the steel wire and the tire is 10-20 degrees, and the direction of the steel wire inclines leftwards; the shoulder crown belt is a nylon crown belt and covers the end points of the first belt ply, the second belt ply, the third belt ply and the fourth belt ply.
Preferably, the included angle between the first belt layer steel wire and the tire circumferential direction is 22-28 degrees.
Still preferably, the first belt steel wire forms an angle of 25 ° with the tire circumferential direction.
Preferably, the third belt layer and the fourth belt layer are respectively arranged at an angle of 12-18 degrees with the circumferential direction of the tire.
Still preferably, the third belt layer and the fourth belt layer are each inclined at an angle of 15 ° to the tire circumferential direction.
Preferably, the difference between the end point of the shoulder crown band and the end point of the first belt is 15-20mm, and the difference between the other end point of the shoulder crown band and the end point of the fourth belt is 10-20mm.
Preferably, the difference between the end point of the shoulder crown strip and the end point of the first belt strip is 16 to 18mm, and the difference between the other end point of the shoulder crown strip and the end point of the fourth belt strip is 12 to 18mm.
Due to the adoption of the technical scheme, the invention has the following beneficial effects:
1. the belt structure is optimized, the width of the first belt layer is larger than the width of the third belt layer, the width of the second belt layer is larger than the width of the fourth belt layer, the thickness of the shoulder part of the tire can be reduced, and heat generation is effectively reduced.
2. The belt structure is arranged in different directions at small angles, and a spiral vertical tire circumferential winding structure is adopted in the middle of the belt structure to form a compact net structure, so that the tightening effect on the tire is obvious.
3. The shoulder crown belt structure protects the end point of the belt, disperses the stress of the end point, improves the durability of the tire and simultaneously further tightens the tire.
4. After the improvement, the grounding rectangular rate of the wide base tire is increased from 91.6% to 94.6%.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic structural view of the first belt layer.
FIG. 3 is a schematic structural view of a second belt ply and a fifth layer of nylon crown tape.
FIG. 4 is a schematic structural view of a third belt layer.
FIG. 5 is a schematic view of the structure of the fourth belt layer.
FIG. 6 is a schematic view of a conventional wide base tire belt structure.
FIG. 7 is a conventional wide base tire footprint.
FIG. 8 is a footprint of a wide base tire after improvement of the present invention.
FIG. 9 is a prior art wide base tire footprint.
Detailed Description
The following describes a detailed embodiment of the present invention with reference to the accompanying drawings.
The shoulder-reinforced wide-base tire with the small-angle winding type belt structure as shown in the figure 1 comprises a tire body, a belt layer, a tire tread, a tire side and a tire bead, wherein the belt layer comprises a first belt layer 1, a second belt layer 2, a third belt layer 3, a fourth belt layer 4 and a shoulder crown belt 5; the width of the first belt ply 1 is more than the width of the third belt ply 3, more than the width of the second belt ply 2 and more than the width of the fourth belt ply 4; the first belt ply 1 is attached to the inner ring of the tire body, the circumferential included angle between the steel wire and the tire is 25 degrees, and the direction of the steel wire inclines leftwards; the second belted layer 2 is arranged on the outer side of the first belted layer 1 and is of a circumferential spiral winding structure, and the circumferential included angle between a steel wire and a tire is 0 degree; the third belt ply 3 is arranged on the outer side of the second belt ply 2, the circumferential included angle between the steel wire and the tire is 15 degrees, and the direction of the steel wire inclines to the right; the fourth belt ply 4 is arranged on the outer side of the third belt ply 3, the circumferential included angle between the steel wire and the tire is 15 degrees, and the direction is left inclined; the shoulder crown belt 5 is a nylon crown belt and covers the end points of the first belt ply 1, the second belt ply 2, the third belt ply 3 and the fourth belt ply 4. The difference between the end point of the shoulder crown 5 and the end point of the first belt was 18mm, and the difference between the other end point of the shoulder crown and the end point of the fourth belt was 12mm.
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 any reference to the above-mentioned 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 shoulder-reinforced wide-base tire with a small-angle winding type belt structure comprises a tire body, a belt layer, a tire tread, a tire side and a tire bead, and is characterized in that the belt layer comprises a first belt layer (1), a second belt layer (2), a third belt layer (3), a fourth belt layer (4) and a shoulder crown belt (5);
the width of the first belt ply (1) is more than that of the third belt ply (3) is more than that of the second belt ply (2) is more than that of the fourth belt ply (4); the first belt ply (1) is attached to the inner ring of the tire body, the circumferential included angle between a steel wire and the tire is 20-30 degrees, and the direction of the steel wire inclines leftwards; the second belted layer (2) is arranged on the outer side of the first belted layer (1) and is of a circumferential spiral winding structure, and the circumferential included angle between a steel wire and a tire is 0 degree; the third belt ply (3) is arranged on the outer side of the second belt ply (2), the circumferential included angle between the steel wire and the tire is 10-20 degrees, and the direction of the steel wire inclines rightwards; the fourth belt ply (4) is arranged on the outer side of the third belt ply (3), the circumferential included angle between the steel wire and the tire is 10-20 degrees, and the direction is left inclined; the shoulder crown belt (5) is a nylon crown belt and covers the end points of the first belt ply (1), the second belt ply (2), the third belt ply (3) and the fourth belt ply (4).
2. A wide base tire with a shoulder reinforced and small angle wrapped belt structure as claimed in claim 1, wherein the angle between the steel wires of the first belt layer (1) and the circumferential direction of the tire is 22-28 °.
3. A wide base tire with shoulder reinforced, small angle wrapped belt structure according to claim 1, characterized by the first belt (1) steel wires making an angle of 25 ° with the tire circumferential direction.
4. A shoulder-reinforced, low-angle-wrapped belt structure wide base tire according to claim 1, characterized in that the third belt layer (3) and the fourth belt layer (4) are both at an angle of 12-18 ° to the tire circumferential direction.
5. A shoulder-reinforced, low-angle, wound belt structure wide base tire according to claim 1, characterized in that the third belt (3) and the fourth belt (4) are both angled 15 ° to the tire circumferential direction.
6. A shoulder reinforced, low angle wind belt structure broad base tire according to any one of claims 1 to 5, wherein the difference between the end point of the shoulder crown (5) and the end point of the first belt is 15 to 20mm, and the difference between the other end point of the shoulder crown and the end point of the fourth belt is 10 to 20mm.
7. A wide base tire with shoulder reinforced, low angle wind belt structure according to claim 6, characterized by the shoulder crown (5) end point being 16-18mm from the first belt end point and the shoulder crown other end point being 12-18mm from the fourth belt end point.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210975623.5A CN115257238A (en) | 2022-08-15 | 2022-08-15 | Shoulder-reinforced wide-base tire with small-angle winding type belt ply structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210975623.5A CN115257238A (en) | 2022-08-15 | 2022-08-15 | Shoulder-reinforced wide-base tire with small-angle winding type belt ply structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115257238A true CN115257238A (en) | 2022-11-01 |
Family
ID=83750662
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210975623.5A Pending CN115257238A (en) | 2022-08-15 | 2022-08-15 | Shoulder-reinforced wide-base tire with small-angle winding type belt ply structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115257238A (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1994763A (en) * | 2005-11-22 | 2007-07-11 | 住友橡胶工业株式会社 | Heavy duty radial tire |
| CN104442211A (en) * | 2014-12-03 | 2015-03-25 | 杭州朝阳橡胶有限公司 | All-steel radial tubeless tire and preparation method thereof |
| CN104968510A (en) * | 2013-02-06 | 2015-10-07 | 株式会社普利司通 | Heavy duty tire |
| CN105034704A (en) * | 2015-09-01 | 2015-11-11 | 江苏通用科技股份有限公司 | Tire zero-degree belt ply structure |
| CN106080043A (en) * | 2016-08-29 | 2016-11-09 | 江苏通用科技股份有限公司 | Winding-type tire belt Rotating fields |
| CN106515315A (en) * | 2016-12-07 | 2017-03-22 | 杭州朝阳橡胶有限公司 | All-steel off-the-road tire with zero-degree nylon caps |
| FR3045485A1 (en) * | 2015-12-16 | 2017-06-23 | Michelin & Cie | PNEUMATIC HAVING IMPROVED WEAR AND ROLL RESISTANCE PROPERTIES |
| CN210062577U (en) * | 2019-05-06 | 2020-02-14 | 赛轮集团股份有限公司 | Belted layer structure of all-steel radial tire |
| CN114179568A (en) * | 2020-09-14 | 2022-03-15 | 住友橡胶工业株式会社 | Heavy duty pneumatic tire |
| CN114274714A (en) * | 2022-01-25 | 2022-04-05 | 中策橡胶集团股份有限公司 | Tire crown structure of anti-eccentric wear tire and tire adopting same |
-
2022
- 2022-08-15 CN CN202210975623.5A patent/CN115257238A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1994763A (en) * | 2005-11-22 | 2007-07-11 | 住友橡胶工业株式会社 | Heavy duty radial tire |
| CN104968510A (en) * | 2013-02-06 | 2015-10-07 | 株式会社普利司通 | Heavy duty tire |
| CN104442211A (en) * | 2014-12-03 | 2015-03-25 | 杭州朝阳橡胶有限公司 | All-steel radial tubeless tire and preparation method thereof |
| CN105034704A (en) * | 2015-09-01 | 2015-11-11 | 江苏通用科技股份有限公司 | Tire zero-degree belt ply structure |
| FR3045485A1 (en) * | 2015-12-16 | 2017-06-23 | Michelin & Cie | PNEUMATIC HAVING IMPROVED WEAR AND ROLL RESISTANCE PROPERTIES |
| CN106080043A (en) * | 2016-08-29 | 2016-11-09 | 江苏通用科技股份有限公司 | Winding-type tire belt Rotating fields |
| CN106515315A (en) * | 2016-12-07 | 2017-03-22 | 杭州朝阳橡胶有限公司 | All-steel off-the-road tire with zero-degree nylon caps |
| CN210062577U (en) * | 2019-05-06 | 2020-02-14 | 赛轮集团股份有限公司 | Belted layer structure of all-steel radial tire |
| CN114179568A (en) * | 2020-09-14 | 2022-03-15 | 住友橡胶工业株式会社 | Heavy duty pneumatic tire |
| CN114274714A (en) * | 2022-01-25 | 2022-04-05 | 中策橡胶集团股份有限公司 | Tire crown structure of anti-eccentric wear tire and tire adopting same |
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