SUV tire

Abstract

The utility model provides an SUV (sports utility vehicle) tire, which belongs to the technical field of tires, a plurality of longitudinal grooves extending along the circumferential direction of a tire body are arranged on the tread of the tire, the tread is divided into a shoulder pattern area and a central pattern area by the longitudinal grooves, in a tire tread area TAW, the area of the shoulder pattern area accounts for 38%-40% of the area of the tire tread area, and the area of the central pattern area accounts for 30%-40% of the area of the tire tread area TAW. And the area of the central pattern area accounts for 35-37% of the area of the tire tread area. The SUV tire disclosed by the utility model is suitable for an oil-electric hybrid SUV model, and has the characteristics of low noise, high controllability and high grip performance.

Description

Technical Field

[0001] The utility model belongs to the technical field of tires, and in particular relates to a tire suitable for a hybrid SUV model. Background Art

[0002] With the global emphasis on environmental protection and energy consumption, the new energy vehicle industry is developing rapidly. Hybrid SUVs, due to their advantages in fuel economy, range, and environmental performance, are occupying an increasingly important position in the new energy vehicle market.

[0003] Tires are the only part of a vehicle that comes into contact with the ground, directly impacting its handling, comfort, and noise levels. Compared to traditional internal combustion SUVs, hybrid SUVs offer higher power output efficiency and lower internal mechanical noise during starting and low-speed driving. Therefore, hybrid SUV tires require higher grip and lower noise levels. Furthermore, since SUVs must adapt to a variety of driving conditions, improving tire handling is crucial. Tire standards for traditional fuel vehicles are not applicable to hybrid vehicles and cannot meet the requirements for hybrid SUV tires. Therefore, it is necessary to develop a tire specifically designed for hybrid SUVs to meet market demand. Utility Model Content

[0004] The details of one or more embodiments of the present invention are set forth in the following drawings and description to make other features, objects, and advantages of the present application more readily apparent.

[0005] The utility model proposes an SUV tire, which solves the technical problem that the tire standards of traditional fuel vehicles cannot be applied to hybrid vehicles and cannot meet the use requirements of hybrid SUV tires. It has the characteristics of low noise, high controllability and high grip performance.

[0006] On one hand, the utility model discloses an SUV tire, wherein a plurality of longitudinal grooves extending along the circumferential direction of the tire body are provided on the tire tread, and the longitudinal grooves divide the tread into a shoulder pattern area and a center pattern area. Within the tire running surface area TAW, the area of ​​the shoulder pattern area accounts for 38%-40% of the area of ​​the tire running surface area, and the area of ​​the center pattern area accounts for 35%-37% of the area of ​​the tire running surface area.

[0007] In some embodiments, the longitudinal grooves are of a broken line structure, including crown longitudinal grooves located on both sides of the tread centerline, and shoulder longitudinal grooves located on both sides of the shoulders, wherein the width of the crown longitudinal grooves is 3 / 4 of the width of the shoulder longitudinal grooves, and the total width of the crown longitudinal grooves and the shoulder longitudinal grooves accounts for 24%-26% of the width of the tire running surface.

[0008] In some embodiments, a plurality of shoulder transverse grooves are arranged at intervals in the shoulder pattern area, a first boss is provided at the groove bottom of each shoulder transverse groove, and a distance between the first boss and the tire running surface is 2 / 3 of the depth of the longitudinal groove.

[0009] In some embodiments, a broken-line shoulder steel sheet is provided between adjacent shoulder transverse grooves on the shoulder pattern area, and the first bending angle α of the shoulder steel sheet is 155°-160°, and the second bending angle β is 125°-130°.

[0010] In some embodiments, the central pattern area includes a first central pattern area and a third central pattern area symmetrically arranged on both sides of the tread centerline, wherein a plurality of first central transverse grooves are arranged on the third central pattern area, and the first central transverse grooves are provided with inclined central transverse groove cutting angles on both side edges close to the pattern blocks, and the angle between the inclined surface of the central transverse groove cutting angle and the vertical line of the tread is 40°-45°.

[0011] In some embodiments, second middle transverse grooves are alternately arranged between adjacent first middle transverse grooves. The second middle transverse grooves are a sharp knife-shaped semi-closed structure, and their depth gradually becomes shallower from the end where the second middle transverse groove is connected to the longitudinal groove to the closed end.

[0012] In some embodiments, a middle steel sheet is provided between adjacent first middle transverse grooves, the middle steel sheet has a Z-shaped structure, and the angle between the line connecting the two ends of the Z-shape and the center line of the tread is 35°-40°.

[0013] In some embodiments, the central pattern area further includes a second central pattern area located at the center line of the tread, and the first central transverse groove group and the second central transverse groove group are alternately arranged on the second central pattern area.

[0014] In some embodiments, the first central transverse groove group includes staggered first central transverse grooves, the second central transverse groove group includes staggered second central transverse grooves, and both the first central transverse grooves and the second central transverse grooves are knife-shaped semi-closed structures.

[0015] In some embodiments, a central steel sheet is provided between the first central transverse groove and the second central transverse groove adjacent to each other on the same side of the tread centerline in the central pattern area, and the angle between the central steel sheet and the tread centerline is 55°-65°.

[0016] Compared with the prior art, the beneficial effects of the present invention are:

[0017] (1) In the SUV tire of the present invention, the total area of ​​the tread blocks in the tire driving surface area accounts for 73%-77%, which can effectively ensure the stability of the tire's safe driving.

[0018] (2) The tread of the SUV tire of the present invention is provided with four zigzag longitudinal grooves. Compared with the straight longitudinal grooves, the groove area is larger, which is beneficial to enhancing the drainage performance of the tire on wet roads.

[0019] (3) The shoulder pattern area of ​​the SUV tire of the present invention is provided with a plurality of shoulder transverse grooves, and the shoulder transverse grooves are provided with a first boss, which can ensure the rigidity of the shoulder pattern blocks and reduce the flow of air in the pattern grooves, thereby effectively reducing the driving noise of the tire.

[0020] (4) The utility model provides a knife-shaped semi-enclosed transverse groove in the center pattern area of ​​the SUV tire tread, which can enhance the grip performance of the tread pattern.

[0021] (5) The utility model SUV tire is provided with steel plate grooves of different angles in the shoulder pattern area and the center pattern area, which can balance the strength of the pattern blocks, make the tire ground pressure distribution more uniform and reasonable, and prevent the tire from wearing unevenly; at the same time, the layout of the steel plates can also timely remove the heat energy generated by the tire running, preventing the tread rubber material from aging due to heat generation and causing the wear resistance of the rubber material to deteriorate, thereby improving the tire wear performance and service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. Among them:

[0023] Figure 1 A schematic structural diagram of an SUV tire provided by an embodiment of the present utility model;

[0024] Figure 2 for Figure 1 Sectional view at A-A';

[0025] Figure 3 for Figure 1 Cross-sectional view at point B-B';

[0026] Figure 4 for Figure 1 Sectional view at C-C';

[0027] Figure 5 for Figure 1 Cross-sectional view at D-D';

[0028] In the accompanying drawings: 100, shoulder pattern area, 110, inner shoulder pattern area, 120, outer shoulder pattern area, 121, shoulder transverse groove, 122, shoulder steel plate, 123, first boss; 200, center pattern area, 210, first center pattern area, 220, second center pattern area, 221, first center transverse groove, 222, second center transverse groove, 223, center steel plate, 230, third center pattern area, 231, first middle transverse groove, 232, second middle transverse groove, 233, middle steel plate, 234, middle transverse groove chamfer, 235, second boss; 300, crown longitudinal groove; 400, shoulder longitudinal groove;

[0029] TAW: Tire tread width. DETAILED DESCRIPTION

[0030] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0031] In the description of the present invention, it should be understood that the terms "center", "transverse", "longitudinal", "upper", "lower", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the present invention. The terms "first", "second", and "third" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, features defined as "first", "second", and "third" may explicitly or implicitly include one or more of such features. The term "longitudinal" refers to the direction in which the tire rolls; the term "transverse" refers to the direction perpendicular to the mid-plane of the tire.

[0032] The present invention provides an SUV tire, particularly a tire suitable for hybrid SUVs, having a symmetrical tread structure. Figure 1 Schematic diagram of the structure of an SUV tire according to an embodiment of the present invention. Figure 1As shown, the SUV tire's tread is provided with multiple longitudinal grooves extending along the circumference of the tire body. These longitudinal grooves divide the tread into a shoulder pattern area 100 and a center pattern area 200. To effectively ensure safe driving stability, the total pattern block area of ​​the shoulder pattern area 100 and the center pattern area 200 accounts for 73%-77% of the tire's running surface area. The shoulder pattern area 100 includes an inner shoulder pattern area 110 located on the inner side of the tread and an outer shoulder pattern area 120 located on the outer side of the tread, accounting for 38%-40% of the tire's running surface area. The center pattern area 200 includes a second center pattern area 220 located at the centerline of the tread, and a first center pattern area 210 and a second center pattern area 230 located on either side of the second center pattern area 220, accounting for 35%-37% of the tire's running surface area. The second central pattern area 230 is a continuous rib pattern structure. Except for the second central pattern area 230, other pattern areas are provided with polygonal block patterns with unequal side lengths. The polygonal block patterns have sharp lines and corners, presenting a strong and tough visual experience, which can make the pattern blocks full of rigidity, enhance the handling performance and load-bearing performance of the tire, and enable the tire to adapt to the driving needs of various road conditions.

[0033] The longitudinal grooves of this SUV tire are zigzag-shaped, with angles of 165°-170° at the corners. Compared to straight-line longitudinal grooves, these zigzag grooves have a larger groove area, which helps enhance the tire's drainage performance on wet roads. The longitudinal grooves include crown longitudinal grooves 300 located on either side of the tread's centerline, and shoulder longitudinal grooves 400 located on either side of the tire's shoulders. The width of the crown longitudinal grooves 300 is three-quarters of the width of the shoulder longitudinal grooves 400. The combined width of the crown longitudinal grooves 300 and shoulder longitudinal grooves 400 accounts for 24%-26% of the tire's running surface width. Among them, the crown longitudinal groove 300 is located between adjacent central pattern areas, specifically between the first central pattern area 210 and the second central pattern area 220, and between the second central pattern area 220 and the third central pattern area 230; the shoulder longitudinal groove 400 is located between the shoulder pattern area 100 and the adjacent central pattern area 200, specifically between the inner shoulder pattern area 110 and the first central pattern area 210, and between the outer shoulder pattern area 120 and the third central pattern area 230.

[0034] The shoulder pattern area 100 of the SUV tire of the present invention is provided with a plurality of shoulder transverse grooves 121 at intervals to strengthen the rigidity of the shoulder pattern blocks, reduce the flow of air in the pattern grooves, and effectively reduce the driving noise of the tire. Figure 2As shown, a first boss 123 is provided at the bottom of each shoulder transverse groove 121. The depth of the shoulder transverse groove 121 at the first boss 123 is 2 / 3 of the longitudinal groove depth, that is, the vertical distance h between the first boss 123 and the tire running surface is 2 / 3 of the longitudinal groove depth. A zigzag shoulder steel sheet 122 is provided between adjacent shoulder transverse grooves 121 in the shoulder pattern area 100. The first bending angle α of the shoulder steel sheet 122 is 155°-160°, and the second bending angle β is 125°-130°. The provision of the shoulder steel sheet 122 can promptly dissipate heat energy generated by tire operation, preventing the tread rubber material from deteriorating in wear resistance due to thermal aging, thereby improving tire wear performance and service life.

[0035] The first center pattern area 210 and the third center pattern area 230 of the SUV tire of the utility model are both provided with a plurality of first middle transverse grooves 231 and second middle transverse grooves 232. Figure 3 As shown, the first middle transverse groove 231 is provided with inclined middle transverse groove cutting angles 234 on both sides of the tread block. The angle between the inclined surface of the middle transverse groove cutting angle 234 and the vertical line of the tread is 40°-45°. The multi-dimensional cutting angle can increase the friction between the tire and the ground and ensure the traction performance of the tire. Figure 4 As shown, a second boss 235 is provided in the middle of the first middle transverse groove 231. The depth of the second boss 235 is 1 / 2 of the depth of the first middle transverse groove 231. The second boss 235 can reduce the pumping noise generated by the compression deformation of the first middle transverse groove 231. The second middle transverse grooves 232 are staggered between adjacent first middle transverse grooves 231. Figure 5 As shown, one end of the second middle transverse groove 232 is connected to the adjacent longitudinal groove, and the other end is a closed structure. The second middle transverse groove 232 has a sharp knife-shaped structure with a gradual depth, and the depth gradually becomes shallower from the end connected to the longitudinal groove to the closed end. The sharp knife-shaped groove can enhance the grip performance of the tread pattern. A middle steel plate 233 is also provided between adjacent first middle transverse grooves 231. The middle steel plate 233 has a Z-shaped structure, and the angle between the two ends of the Z-shaped structure and the centerline of the tread is 35°-40°. The provision of the middle steel plate 233 can promptly remove the heat energy generated by the tire during driving, preventing the wear resistance of the tread rubber material from deteriorating due to thermal aging, thereby improving the wear performance and service life of the tire.

[0036] The second central tread zone 220 of the SUV tire of the present invention features an uninterrupted ribbed pattern structure, which can reduce tire steering hysteresis, enabling faster tire response during steering and improving vehicle handling. A first central transverse groove group and a second central transverse groove group are alternately arranged on either side of the second central tread zone 220. The first central transverse groove group comprises first central transverse grooves 221 arranged in an alternating pattern, while the second central transverse groove group comprises second central transverse grooves 222 arranged in an alternating pattern. Both the first and second central transverse grooves 221 and 222 are sharp, knife-tip-shaped grooves, enhancing the tread's grip. A central steel plate 223 is positioned between the adjacent first and second central transverse grooves 221 and 222 on the same side of the tread's centerline. The angle between the central steel plate 223 and the tread's centerline is 55°-65°. The central steel plate 223 effectively dissipates heat generated by the tire's travel, preventing the wear resistance of the tread rubber from deteriorating due to thermal aging, thereby improving the tire's wear performance and service life. Moreover, by setting steel grooves of different angles in the shoulder pattern area and the center pattern area, the strength of the pattern blocks can be balanced, making the tire ground pressure distribution more uniform and reasonable, and preventing uneven wear of the tire.

[0037] The above embodiments are only used to illustrate the technical solution of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the specific implementation methods of the present invention can still be modified or some technical features can be replaced by equivalents without departing from the spirit of the technical solution of the present invention. They should all be included in the scope of the technical solution for which protection is requested in the present invention.

Claims

1. An SUV tire, characterized by: The tire tread is provided with a plurality of longitudinal grooves extending along the circumferential direction of the tire body, and the longitudinal grooves divide the tread into a shoulder pattern area and a center pattern area. Within the tire running surface area TAW, the area of ​​the shoulder pattern area accounts for 38%-40% of the tire running surface area, and the area of ​​the center pattern area accounts for 35%-37% of the tire running surface area.

2. The SUV tire according to claim 1, characterized in that: The longitudinal grooves are of a broken line structure, including crown longitudinal grooves located on both sides of the tread centerline and shoulder longitudinal grooves located on both sides of the tire shoulders. The width of the crown longitudinal grooves is 3 / 4 of the width of the shoulder longitudinal grooves, and the total width of the crown longitudinal grooves and the shoulder longitudinal grooves accounts for 24%-26% of the tire running surface width.

3. The SUV tire according to claim 1, characterized in that: A plurality of shoulder transverse grooves are arranged at intervals in the shoulder pattern area, a first boss is arranged at the bottom of each shoulder transverse groove, and a distance between the first boss and the tire running surface is 2 / 3 of the depth of the longitudinal groove.

4. The SUV tire according to claim 3, characterized in that: A broken-line shoulder steel sheet is provided between adjacent shoulder transverse grooves on the shoulder pattern area. The first bending angle α of the shoulder steel sheet is 155°-160°, and the second bending angle β is 125°-130°.

5. The SUV tire according to claim 1, characterized in that: The central pattern area includes a first central pattern area and a third central pattern area symmetrically arranged on both sides of the tread center line, wherein a plurality of first central transverse grooves are arranged on the third central pattern area, and the first central transverse grooves are provided with inclined central transverse groove cutting angles on both side edges close to the pattern blocks, and the angle between the inclined surface of the central transverse groove cutting angle and the vertical line of the tread is 40°-45°.

6. The SUV tire according to claim 5, characterized in that: Second middle transverse grooves are arranged alternately between adjacent first middle transverse grooves. The second middle transverse grooves are a sharp knife-shaped semi-closed structure, and their depth gradually becomes shallower from the end where the second middle transverse groove is connected to the longitudinal groove to the closed end.

7. The SUV tire according to claim 5, characterized in that: A middle steel sheet is arranged between adjacent first middle transverse grooves. The middle steel sheet has a Z-shaped structure, and the angle between the connecting line of the two ends of the Z-shape and the center line of the tread is 35°-40°.

8. The SUV tire according to claim 5, characterized in that: The central pattern area also includes a second central pattern area located at the center line of the tread, and the first central transverse groove group and the second central transverse groove group are alternately arranged on the second central pattern area.

9. The SUV tire according to claim 8, characterized in that: The first central transverse groove group includes first central transverse grooves arranged in a staggered manner, and the second central transverse groove group includes second central transverse grooves arranged in a staggered manner. Both the first central transverse grooves and the second central transverse grooves are of a pointed knife-shaped semi-closed structure.

10. The SUV tire according to claim 9, characterized in that: The central pattern area is located between the first central transverse groove and the second central transverse groove adjacent to each other on the same side of the tread centerline, and a central steel sheet is provided. The angle between the central steel sheet and the tread centerline is 55°-65°.

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