Tire pattern and MPV tire

Abstract

The utility model provides a tire pattern and MPV tire belongs to tire technical field, including along the tire circumferential extension multiple longitudinal main groove and by longitudinal main groove division multiple pattern block, pattern block include the central rib pattern block of tread center line, be located the central pattern block of central rib pattern block both sides, be located the central pattern block of central rib pattern block both sides, the pattern block of central rib pattern block of central rib pattern block both sides, the pattern block of central rib pattern block of central rib pattern block of central rib pattern block of central rib pattern block of central rib pattern block of central rib pattern block of central rib pattern block. The shoulder pattern blocks are positioned on the outer sides of the middle pattern blocks; wherein the central rib pattern block is of a continuous irregular structure, the width of the central rib pattern block is 12-20 mm, the difference value between the widest position and the narrowest position is 5-8 mm, the obtuse included angle alpha between the central rib pattern block and the connecting position of the central rib pattern block and the adjacent longitudinal main groove is 110-135 degrees, and the acute included angle beta between the central rib pattern block and the connecting position of the central rib pattern block and the adjacent longitudinal main groove is 32-55 degrees. The tire pattern provided by the utility model solves the technical problems that the rolling resistance and the driving noise of the existing MPV tire are large, and the performances of the existing MPV tire cannot be completely matched with those of a small MPV new energy automobile, and has the characteristics of reducing the rolling resistance, improving the durability and the driving stability of the tire and reducing the driving noise.

Description

Technical Field

[0001] The utility model belongs to the technical field of tires, and particularly relates to a tire tread pattern and an MPV tire. Background Art

[0002] At present, small MPV models have a large market and are gradually transforming into new energy vehicle models. Compared with the tires of old MPV models, the requirements for tires of small MPV models have been improved. The section width of the tires of small MPV models has begun to increase, and the requirements for load and durability have been further improved. New energy MPV models are characterized by large self-weight, fast acceleration, and high driving speed. However, the performance of existing MPV tires in various aspects cannot fully match the current market models, and there are technical problems such as large rolling resistance and driving noise. Therefore, it is necessary to provide a tire to optimize and improve the performance of the tire such as rolling resistance, durability, and driving noise, so as to be suitable for the tires used in current small MPV new energy vehicles. Summary of the Utility Model

[0003] The details of one or more embodiments of the present utility model are set forth in the following drawings and description to make the other features, objects, and advantages of the present application more concise and understandable.

[0004] The present utility model provides a tire tread pattern and an MPV tire, which solve the technical problems that the existing MPV tires have large rolling resistance and driving noise, and their performance in various aspects cannot fully match that of small MPV new energy vehicles, and have the characteristics of reducing rolling resistance, improving the durability and driving stability of the tire, and reducing driving noise.

[0005] On the one hand, the present utility model discloses a tire tread pattern, which includes a plurality of longitudinal main grooves extending along the circumferential direction of the tire and a plurality of tread blocks divided by the longitudinal main grooves. The tread blocks include a central rib tread block located at the center line of the tread surface, middle tread blocks located on both sides of the central rib tread block, and shoulder tread blocks located outside the middle tread blocks. Among them, the central rib tread block is a continuous irregular structure, the width of the central rib tread block is 12-20 mm, and the difference between the widest part and the narrowest part is 5-8 mm. The obtuse angle α between the central rib tread block and the adjacent longitudinal main groove connection is 110-135°, and the acute angle β is 32-55°. The structural design of the central rib tread block improves the grip performance of the tire during straight driving and ensures the straight driving stability.

[0006] In some of these embodiments, the middle tread block is an inclined gourd-shaped structure, and the angle γ between the middle tread block and the adjacent longitudinal main groove connection is 110-135°.

[0007] In some of these embodiments, middle steel sheets are provided at both ends of the middle tread blocks. One end of the middle steel sheet is connected to the adjacent longitudinal main groove, and the other end is a closed structure. The depth of the middle steel sheet is 3 - 5 mm. The setting of the middle steel sheet can break the amplitude and frequency of the tread block slapping the ground during driving, reduce driving noise, and can directionally divide the tread block, reduce the lateral deformation of the tread block during driving, reduce the energy consumption of tread deformation, and reduce the rolling resistance.

[0008] In some of these embodiments, the middle steel sheet includes a first middle steel sheet located above the middle tread block and a second middle steel sheet located below, and the first middle steel sheet and the second middle steel sheet are arranged in parallel.

[0009] In some of these embodiments, an inclined middle transverse groove is provided between adjacent middle tread blocks. The width of the middle transverse groove is 4 - 5.5 mm, and the depth is 3 - 7 mm. The middle transverse groove cooperates with the adjacent longitudinal main groove to provide superior high-speed performance and drainage performance, ensuring the safety of the tire when driving on wet and slippery roads such as in rainy days.

[0010] In some of these embodiments, the shoulder tread block is an irregular polygon structure, and a plurality of shoulder steel sheets are provided on the shoulder tread block. The shoulder steel sheets are in a stepped structure. The length of the shoulder steel sheet is 22 - 28 mm, and the depth is 1 - 6 mm. The setting of the shoulder steel sheet enables the tire to have good heat dissipation performance and improves the durability of the tire.

[0011] In some of these embodiments, a shoulder transverse groove is provided between adjacent shoulder tread blocks. The shoulder transverse groove is in a Z-shaped structure, and one end of the shoulder transverse groove is connected to the side main groove, and the other end extends to the shoulder of the tread surface. The setting of the shoulder transverse groove improves the drainage performance of the tire and ensures the safety of the tire during driving.

[0012] In some of these embodiments, the length of the shoulder transverse groove is 40 - 50 mm, the width is 5 - 6 mm, and the depth is 3 - 7 mm.

[0013] In some of these embodiments, the depth of the longitudinal main groove is 8 - 9 mm, and the width of the longitudinal main grooves on both sides of the tread surface is greater than the width of the longitudinal main groove in the middle.

[0014] On the other hand, the present invention discloses an MPV tire, and the above-mentioned tire tread pattern is provided on the tire tread surface.

[0015] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0016] (1) The central rib tread block of the tire tread pattern of the present utility model is a continuous tread block, ensuring the best straight-line driving stability.

[0017] (2) A central steel sheet is provided on the central tread blocks of the tire tread pattern of the present utility model, which can break the amplitude and frequency of the tread blocks hitting the ground during driving, reduce driving noise, and can directionally divide the tread blocks, reduce the lateral deformation of the tread blocks during driving, reduce the energy consumption of tread deformation, and reduce the rolling resistance.

[0018] (3) The central transverse grooves provided between adjacent central tread blocks of the tire tread pattern of the present utility model cooperate with the adjacent longitudinal main grooves, providing superior high-speed performance and drainage performance, and ensuring the safety of the tire when driving on wet and slippery roads such as in rainy days.

[0019] (4) Shoulder steel sheets are provided on the shoulder tread blocks of the tire tread pattern of the present utility model, enabling the tire to have good heat dissipation performance and improving the durability of the tire. Description of the Drawings

[0020] The drawings described herein are used to provide a further understanding of the present utility model and form a part of the present utility model. The schematic embodiments of the present utility model and their descriptions are used to explain the present utility model and do not constitute an improper limitation to the present utility model. In the drawings:

[0021] Figure 1 is a schematic structural diagram of the tire tread pattern provided by the embodiment of the present utility model;

[0022] Figure 2 is a cross-sectional view of the central steel sheet of the tire tread pattern provided by the embodiment of the present utility model;

[0023] Figure 3 is a cross-sectional view of the shoulder steel sheet of the tire tread pattern provided by the embodiment of the present utility model;

[0024] In the drawings: 1, central main groove; 2, side main groove; 3, central tread rib; 4, central tread block; 5, shoulder tread block; 6, central transverse groove; 7, shoulder transverse groove; 8, central steel sheet; 81, first central steel sheet; 82, second central steel sheet; 9, shoulder steel sheet; 91, first shoulder steel sheet; 92, second shoulder steel sheet;

[0025] α, obtuse angle between the central rib tread block and the adjacent longitudinal main groove; β, acute angle between the central rib tread block and the adjacent longitudinal main groove; γ, angle between the central tread block and the adjacent longitudinal main groove. Detailed Embodiments

[0026] In order to make the objectives, technical solutions and advantages of the present utility model clearer and more understandable, the following will, in conjunction with the accompanying drawings in the embodiments of the present utility model, clearly and completely describe the technical solutions in the embodiments. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without making creative efforts shall fall within the scope of protection of the present utility model.

[0027] In the description of the present utility model, it should be understood that the orientation or positional relationships indicated by the terms "center", "transverse", "longitudinal", "upper", "lower", "inner", "outer", etc. are based on the orientation or positional relationships shown in the accompanying drawings. These are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model. The terms "first", "second", "third" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first", "second", "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.

[0028] The embodiments of the present utility model provide a tire tread pattern and an MPV tire. Figure 1 It is a schematic structural diagram of the tire tread pattern according to the embodiment of the present utility model. Referring to the Figure 1 accompanying drawings, the tire tread pattern is a centrally symmetric structure, including a plurality of longitudinal main grooves extending along the circumferential direction of the tire and a plurality of tread blocks divided by the longitudinal main grooves. Among them, the widths of the longitudinal main grooves are different, and the width of the side main groove 2 located on both sides of the tread is greater than the width of the middle main groove 1 located between the side main grooves 2; the depth of the longitudinal main grooves is 8-9 mm; the tread blocks include a central rib tread block 3 located at the mid-line of the tread, middle tread blocks 4 located on both sides of the central rib tread block 3, and shoulder tread blocks 5 located outside the middle tread blocks 4.

[0029] In the embodiment of the present utility model, the central rib tread block 3 of the tire tread is designed with a solid and continuous irregular curve structure. The width of the central rib tread block 3 is 12 - 20 mm, and the difference between the widest and narrowest parts is 5 - 8 mm. The obtuse angle α between the central rib tread block and the adjacent longitudinal main groove connection is 110 - 135°, and the acute angle β is 32 - 55°. This structural design can provide the tire's grip performance during straight driving, effectively reduce the large lateral deformation of the tread block, ensure the stability of the tread block even under high loads, provide the best straight driving stability performance, and reduce the rolling resistance of the tire. In a preferred embodiment, the width of the central rib tread block 3 is 13 mm.

[0030] In the embodiment of the present utility model, the middle tread block 4 of the tire tread is an inclined gourd-shaped structure, and the angle γ between the middle tread block and the adjacent longitudinal main groove connection is 110 - 135°. Middle steel sheets 8 are provided at both ends of the middle tread block 4. One end of the middle steel sheet 8 is connected to the adjacent longitudinal main groove, and the other end is a closed structure. Refer to the attached Figure 2 As shown in the figure, the depth of the middle steel sheet 8 is 3 - 5 mm. Adopting an internal deformation design and presenting an inverted F-shaped structure, it can break the amplitude and frequency of the tread block hitting the ground during driving, reduce the driving noise, and can directionally divide the tread block, reduce the lateral deformation of the tread block during driving, reduce the energy consumption of tread deformation, and reduce the rolling resistance. In a preferred embodiment, the middle steel sheet 8 includes a first middle steel sheet 81 located above and a second middle steel sheet 82 located below, and the first middle steel sheet 81 and the second middle steel sheet 82 are arranged in parallel. In a preferred embodiment, an inclined middle transverse groove 6 is provided between adjacent middle tread blocks 4. The width of the middle transverse groove 6 is 4 - 5.5 mm, and the depth is 3 - 7 mm. The middle transverse groove 6 cooperates with the adjacent longitudinal main groove to provide excellent high-speed performance and drainage performance, ensuring the safety of the tire when driving on wet and slippery roads such as in rainy days.

[0031] In the embodiment of the present utility model, the shoulder tread block 5 of the tire tread is an irregular polygon structure. Multiple shoulder steel sheets 9 are provided on the shoulder tread block 5. The width of the shoulder steel sheets 9 changes according to the width of the shoulder tread block 5. The deepest depth of the shoulder steel sheets 9 is 1 mm less than the depth of the longitudinal main groove, and the shallowest depth is 1 mm. Refer to the attached Figure 3As shown, the shoulder steel sheet 9 has a stepped structure. The arc length of the shoulder steel sheet 9 is 22 - 28 mm, and the depth is 1 - 6 mm. By providing the shoulder steel sheet 9, the tire has good heat dissipation performance and the durability of the tire is improved. Preferably, the width of the shoulder steel sheet 9 is 1 mm and the depth is 3.5 mm. In a preferred embodiment, the shoulder steel sheet 9 includes a first shoulder steel sheet 91 and a second shoulder steel sheet 92 arranged in parallel, and both the first shoulder steel sheet 91 and the second shoulder steel sheet 92 are closed structures at both ends. An open-type shoulder cross groove 7 is provided between adjacent shoulder tread blocks 5. The shoulder cross groove 7 has a Z-shaped structure, one end of which is connected to the edge main groove 2 and the other end extends to the tire tread shoulder; the length of the shoulder cross groove 7 is 40 - 50 mm, the width is 5 - 6 mm, and the depth is 3 - 7 mm with variable groove depth. Through the above structure, the drainage performance of the tire is improved and the driving safety of the tire is ensured.

[0032] The embodiment of the present invention also discloses an MPV tire. The above tire tread is provided on the tread, which has the characteristics of reducing rolling resistance, improving the durability performance and driving stability of the tire, and reducing driving noise, and is suitable for use in current small MPV new energy vehicles.

[0033] The above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them; although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that: still modifications can be made to the specific embodiments of the present invention or equivalent replacements can be made to some technical features; without departing from the spirit of the technical solutions of the present invention, they should all be covered by the scope of the technical solutions claimed in the present invention.

Claims

1. A tire pattern, characterized in that: The tire comprises a plurality of longitudinal main grooves extending along the circumference of the tire and a plurality of pattern blocks divided by the longitudinal main grooves, wherein the pattern blocks comprise a central rib pattern block located at the center line of the tread, middle pattern blocks located at both sides of the central rib pattern block, and shoulder pattern blocks located outside the middle pattern block; wherein the central rib pattern block is a continuous irregular structure, the width of the central rib pattern block is 12 to 20 mm, and the difference between the widest point and the narrowest point is 5 to 8 mm, the obtuse angle α at the connection between the central rib pattern block and the adjacent longitudinal main groove is 110 to 135°, and the acute angle β is 32 to 55°.

2. The tire pattern according to claim 1, characterized in that: The middle pattern block is an inclined gourd-shaped structure, and the angle γ between the middle pattern block and the adjacent longitudinal main groove is 110-135 degrees.

3. The tire pattern according to claim 2, characterized in that: Central steel sheets are arranged at both ends of the central pattern block, one end of the central steel sheet is connected with the adjacent longitudinal main groove, and the other end is a closed structure, and the depth of the central steel sheet is 3 to 5 mm.

4. The tire pattern according to claim 3, characterized in that: The middle steel sheet comprises a first middle steel sheet located above the middle pattern block and a second middle steel sheet located below the middle pattern block, and the first middle steel sheet is arranged in parallel with the second middle steel sheet.

5. The tire pattern according to claim 1, characterized in that: Inclined middle transverse grooves are arranged between adjacent middle pattern blocks, and the width of the middle transverse grooves is 4 to 5.5 mm and the depth is 3 to 7 mm.

6. The tire pattern according to claim 1, characterized in that: The shoulder pattern block is an irregular polygonal structure. A plurality of shoulder steel sheets are arranged on the shoulder pattern block. The shoulder steel sheets are in a stepped structure. The length of the shoulder steel sheets is 22 to 28 mm and the depth is 1 to 6 mm.

7. The tire pattern according to claim 1, characterized in that: A shoulder transverse groove is arranged between adjacent shoulder pattern blocks. The shoulder transverse groove has a Z-shaped structure, and one end of the shoulder transverse groove is connected to the edge main groove, and the other end extends to the tread shoulder.

8. The tire pattern according to claim 7, characterized in that: The length of the shoulder transverse groove is 40-50 mm, the width is 5-6 mm, and the depth is 3-7 mm.

9. The tire pattern according to claim 1, characterized in that: The depth of the longitudinal main groove is 8 to 9 mm, and the width of the longitudinal main grooves on both sides of the tread is greater than the width of the longitudinal main grooves in the middle.

10. An MPV tire, characterized by: The tire pattern according to any one of claims 1 to 9 is arranged on the tread of the MPV tire.

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