Tire

Abstract

The utility model provides a tire, which belongs to the field of tire design and is characterized in that a first longitudinal groove, a second longitudinal groove, a third longitudinal groove and a fourth longitudinal groove which continuously extend along the circumferential direction of the tread of the tire are sequentially arranged on the tread of the tire from left to right; the first longitudinal groove and the fourth longitudinal groove are symmetrically arranged, and the second longitudinal groove and the third longitudinal groove are symmetrically arranged; the second longitudinal grooves and the third longitudinal grooves are formed by alternately arranging vertical parts and inclined parts, and the vertical parts are distributed in a staggered manner in the circumferential direction of the tire tread; the first longitudinal groove and the fourth longitudinal groove are bent; the width of the second longitudinal groove and the third longitudinal groove accounts for not more than 2% of the width of the driving surface; the second longitudinal groove and the third longitudinal groove define a central pattern block, and the central pattern block continuously extends in the circumferential direction of the tire tread. The tire solves the technical problem that an existing tire cannot give consideration to driving performance and rolling resistance, and has the advantages of being high in driving performance, small in rolling resistance and low in oil consumption.

Description

Technical Field

[0001] The utility model belongs to the field of tire design, and particularly relates to a tire. Background Art

[0002] China has become a major automobile producer and a major new car consumer, and has established a complete industrial system with a complete range of products of various specifications, and has obtained a series of international leading technical achievements with original innovation characteristics. Affected by the international situation, the oil price in China has been rising continuously, and drivers are paying more and more attention to the fuel consumption factor. According to professional research, nearly 1 / 3 of the fuel consumption is generated by the rolling resistance of the tire. Therefore, reducing the rolling resistance has become an urgent need for each tire industry.

[0003] By designing more wear-resistant tires to increase the driving mileage of vehicles and reduce the vehicle use cost of drivers is an important aspect of tire development. The existing driving tire treads usually use continuous transverse tread blocks and wide and deep tread grooves. At the same time, in order to ensure the driving performance and grip of the tire, the groove wall angle is designed to be small, resulting in a large groove bottom width. Although this makes the tire have better driving performance, the rolling resistance increases significantly, the vehicle fuel consumption increases significantly, the wear resistance decreases, and the use cost increases. Summary of the Utility Model

[0004] The details of one or more embodiments of the present utility model are set forth in the following drawings and description, so that the other features, objects, and advantages of the present application will become more clearly understood.

[0005] The present utility model provides a tire, which solves the technical problem that the existing tires cannot balance the driving performance and the rolling resistance, and has the characteristics of high driving performance, small rolling resistance, and low fuel consumption.

[0006] The present utility model discloses a tire. On the tread of the tire, a first longitudinal groove, a second longitudinal groove, a third longitudinal groove, and a fourth longitudinal groove that continuously extend along the circumferential direction of the tread of the tire are sequentially arranged from left to right; the first longitudinal groove and the fourth longitudinal groove are symmetrically arranged, and the second longitudinal groove and the third longitudinal groove are symmetrically arranged; the second longitudinal groove and the third longitudinal groove are composed of alternately arranged vertical parts and inclined parts, and the vertical parts are staggered along the circumferential direction of the tire tread; the first longitudinal groove and the fourth longitudinal groove are bent; the ratio of the width of the second longitudinal groove and the third longitudinal groove to the width of the running surface is not greater than 2%; the second longitudinal groove and the third longitudinal groove define a central tread block, and the central tread block continuously extends along the circumferential direction of the tire tread.

[0007] In some of these embodiments, the first longitudinal groove and the second longitudinal groove define a left tread block, and the third longitudinal groove and the fourth longitudinal groove define a right tread block; the left tread block and the right tread block extend discontinuously along the circumferential direction of the tire tread, and reinforcing ribs are provided between adjacent left tread blocks and between adjacent right tread blocks.

[0008] In some of these embodiments, the height of the reinforcing rib is 1 / 3 - 1 / 2 of the depth of the first longitudinal groove.

[0009] In some of these embodiments, the length of the inclined portion is less than the length of the vertical portion; the inclined portion includes a first inclined portion and a second inclined portion, the inclination directions of the first inclined portion and the second inclined portion are opposite, and one end of the same vertical portion is connected to the first inclined portion and the other end is connected to the second inclined portion.

[0010] In some of these embodiments, the offset distances of two adjacent vertical portions with respect to the circumferential center line of the tire tread are different; the offset distances of two alternating vertical portions with respect to the circumferential center line of the tire tread are the same.

[0011] In some of these embodiments, the left tread block and the right tread block are arrow-shaped; a bent portion of the first longitudinal groove defines the arrow head of the left tread block, and a bent portion of the fourth longitudinal groove defines the arrow head of the right tread block; the vertical portion of the second longitudinal groove near the circumferential center line of the tire tread and the inclined portions at both ends define the arrow tail of the left tread block, and the vertical portion of the third longitudinal groove near the circumferential center line of the tire tread and the inclined portions at both ends define the arrow tail of the right tread block.

[0012] In some of these embodiments, steel sheets are horizontally provided on the central tread block, the left tread block, and the right tread block.

[0013] In some of these embodiments, one end of the steel sheet provided on the left tread block and the right tread block is connected to the arrow head, and the other end is connected to the arrow tail; a groove is provided at the arrow head.

[0014] In some of these embodiments, the first longitudinal groove and the left tire shoulder of the tire define a left tire shoulder tread block, the fourth longitudinal groove and the right tire shoulder of the tire define a right tire shoulder tread block, the left tire shoulder tread block and the right tire shoulder tread block are symmetrically arranged, and the left tire shoulder tread block and the right tire shoulder tread block extend discontinuously along the circumferential direction of the tire.

[0015] In some of these embodiments, first transverse grooves are provided between adjacent left shoulder tread blocks and between adjacent right shoulder tread blocks; closed second transverse grooves are also provided on the left shoulder tread blocks and the right shoulder tread blocks; the width of the second transverse grooves is greater than the width of the first transverse grooves.

[0016] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0017] The present utility model provides a tire. By defining the shapes of the first longitudinal groove, the second longitudinal groove, the third longitudinal groove, and the fourth longitudinal groove, the driving performance and anti-skid performance of the tire are more balanced and more comprehensive; by defining the central tread block as a continuous tread block, the wear resistance of the tire is increased. At the same time, with the narrow groove design of the second longitudinal groove and the third longitudinal groove, the middle part of the tire crown forms an integral body, reducing the rolling resistance of the driving tread and reducing the fuel consumption during the tire driving process. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The drawings described herein are used to provide a further understanding of the present utility model and constitute 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:

[0019] Figure 1 is a schematic diagram of the tread pattern of the tire provided by the embodiment of the present utility model;

[0020] In the above figures: 1, the first longitudinal groove; 2, the second longitudinal groove; 3, the third longitudinal groove; 4, the fourth longitudinal groove; 5, the central tread block; 6, the left tread block; 7, the right tread block; 8, the reinforcing rib; 9, the steel sheet; 10, the left shoulder tread block; 11, the right shoulder tread block; 12, the first transverse groove; 13, the second transverse groove. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0021] In order to make the objectives, technical solutions and advantages of the present utility model clearer and more understandable, the present utility model will be described and illustrated below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model. Based on the embodiments provided by the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present utility model.

[0022] The embodiment of the present utility model provides a tire, Figure 1 is a schematic diagram of the tread pattern of the tire according to the embodiment of the present utility model. Refer to Figure 1As shown, a first longitudinal groove 1, a second longitudinal groove 2, a third longitudinal groove 3, and a fourth longitudinal groove 4 that continuously extend circumferentially along the tread of the tire are arranged in sequence from left to right on the tread of the tire; the first longitudinal groove 1 and the fourth longitudinal groove 4 are symmetrically arranged, and the second longitudinal groove 2 and the third longitudinal groove 3 are symmetrically arranged; the second longitudinal groove 2 and the third longitudinal groove 3 are composed of alternating vertical parts and inclined parts, and the vertical parts are staggered in the circumferential direction of the tire tread; the first longitudinal groove 1 and the fourth longitudinal groove 4 are bent; the width of the second longitudinal groove 2 and the third longitudinal groove 3 accounts for no more than 2% of the width of the running surface; the second longitudinal groove 2 and the third longitudinal groove 3 define a central tread block 5, and the central tread block 5 continuously extends in the circumferential direction of the tire tread.

[0023] By defining the shapes of the first longitudinal groove 1, the second longitudinal groove 2, the third longitudinal groove 3, and the fourth longitudinal groove 4, the above tire is more balanced and comprehensive in terms of driving performance and anti-skid performance; by defining the central tread block 5 as a continuous tread block, the wear resistance of the tire is increased, and at the same time, in cooperation with the narrow groove design of the second longitudinal groove 2 and the third longitudinal groove 3, the middle part of the tire crown forms a whole, reducing the rolling resistance of the driving tread and reducing the fuel consumption during the running of the tire. Specifically, the main tread grooves (the first longitudinal groove 1 and the fourth longitudinal groove 4) of the tread pattern are designed as circumferential bent grooves, the middle parts of the middle tread grooves (the second longitudinal groove 2 and the third longitudinal groove 3) are vertical, and the adjacent vertical parts are staggered. They are connected by large-angle short tread grooves, and the edge tread grooves are designed as continuous bent grooves. Compared with the traditional design method of four longitudinal tread grooves, the tire provided by the present invention is more balanced and comprehensive in terms of tire driving performance and anti-skid performance. The middle tread block has no circumferential break, increasing the wear resistance of the tire. The width of the middle tread grooves of the tire is narrow, accounting for ≤2% of the width of the running surface, and the middle part of the tire crown forms a whole, reducing the rolling resistance of the driving tread and reducing the fuel consumption.

[0024] In order to further improve the driving performance of the tire, the first longitudinal groove 1 and the second longitudinal groove 2 define a left tread block 6, and the third longitudinal groove 3 and the fourth longitudinal groove 4 define a right tread block 7; the left tread block 6 and the right tread block 7 extend discontinuously in the circumferential direction of the tire tread, and reinforcing ribs 8 are provided between adjacent left tread blocks 6 and between adjacent right tread blocks 7. Further, the height of the reinforcing rib 8 is 1 / 3 - 1 / 2 of the depth of the first longitudinal groove 1. The middle tread blocks (the left tread block 6 and the right tread block 7) are circumferentially discontinuous, and the reinforcing rib 8 is designed at the discontinuous position. The height of the reinforcing rib 8 is 1 / 3 - 1 / 2 of the depth of the tread groove, increasing the driving performance of the tire. In addition, the arrangement of the reinforcing rib 8 to connect the tread blocks in the vertical direction of the tire can increase the rigidity of the tire in the vertical direction.

[0025] In this embodiment, a form in which the vertical portions are arranged in a staggered manner along the circumferential direction of the tire tread is provided. Specifically, the length of the inclined portion is less than the length of the vertical portion; the inclined portion includes a first inclined portion and a second inclined portion, the inclination directions of the first inclined portion and the second inclined portion are opposite, and one end of the same vertical portion is connected to the first inclined portion, and the other end is connected to the second inclined portion. The offset distances of adjacent two vertical portions with respect to the circumferential center line of the tire tread are different; the offset distances of two alternating vertical portions with respect to the circumferential center line of the tire tread are the same.

[0026] In some of these embodiments, the left tread block 6 and the right tread block 7 are arrow-shaped; a bent portion of the first longitudinal groove 1 defines the arrowhead portion of the left tread block 6, and a bent portion of the fourth longitudinal groove 4 defines the arrowhead portion of the right tread block 7; the vertical portion of the second longitudinal groove 2 near the circumferential center line of the tire tread and the inclined portions at both ends define the arrow tail portion of the left tread block 6, and the vertical portion of the third longitudinal groove 3 near the circumferential center line of the tire tread and the inclined portions at both ends define the arrow tail portion of the right tread block 7. In some of these embodiments, horizontal steel sheets 9 are provided on the central tread block 5, the left tread block 6, and the right tread block 7. In some of these embodiments, one end of the steel sheet 9 provided on the left tread block 6 and the right tread block 7 is connected to the arrowhead portion, and the other end is connected to the arrow tail portion; a groove is provided at the arrowhead portion. A small groove is provided at the end point position (arrowhead portion) of the tire steel sheet 9 to prevent the steel sheet 9 from connecting to the sharp corner of the tread block, eliminate stress concentration, and protect the steel sheet 9.

[0027] Furthermore, the first longitudinal groove 1 and the left tire shoulder of the tire define the left shoulder tread block 10, the fourth longitudinal groove 4 and the right tire shoulder of the tire define the right shoulder tread block 11. The left shoulder tread block 10 and the right shoulder tread block 11 are symmetrically arranged, and the left shoulder tread block 10 and the right shoulder tread block 11 extend discontinuously along the circumferential direction of the tire. First transverse grooves 12 are provided between adjacent left shoulder tread blocks 10 and between adjacent right shoulder tread blocks 11; closed second transverse grooves 13 are also provided on the left shoulder tread block 10 and the right shoulder tread block 11; the width of the second transverse groove 13 is greater than the width of the first transverse groove 12. The shoulder tread blocks are circumferentially discontinuous, which improves the driving performance of the tire. At the same time, the wide and narrow tread grooves on the tire shoulder are distributed alternately, which improves the heat dissipation performance of the tire shoulder; the narrow tread grooves are connected to the grooves of the shoulder tread blocks, which improves the driving performance of the tire.

[0028] The technical features of the above embodiments can be combined arbitrarily. For the sake of brief description, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered as the scope recorded in this specification.

[0029] The above embodiments only illustrate several implementation manners of the present utility model. The description thereof is relatively specific and detailed, but it should not be construed as a limitation to the scope of the utility model patent. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present utility model, several modifications and improvements can still be made, and these all fall within the protection scope of the present utility model. Therefore, the protection scope of the present utility model patent shall be subject to the appended claims.

Claims

1. A tire, characterized in that, On the tread of the tire, a first longitudinal groove, a second longitudinal groove, a third longitudinal groove, and a fourth longitudinal groove that continuously extend circumferentially along the tread of the tire are arranged in sequence from left to right; the first longitudinal groove and the fourth longitudinal groove are symmetrically arranged, and the second longitudinal groove and the third longitudinal groove are symmetrically arranged; The second longitudinal groove and the third longitudinal groove are composed of alternately arranged vertical portions and inclined portions, and the vertical portions are staggered in the circumferential direction of the tire tread; the first longitudinal groove and the fourth longitudinal groove are bent; The proportion of the width of the second longitudinal groove and the third longitudinal groove in the width of the running surface is not greater than 2%; The second longitudinal groove and the third longitudinal groove define a central tread block, and the central tread block continuously extends in the circumferential direction of the tire tread.

2. The tire according to claim 1, wherein The first longitudinal groove and the second longitudinal groove define a left tread block, and the third longitudinal groove and the fourth longitudinal groove define a right tread block; the left tread block and the right tread block extend discontinuously in the circumferential direction of the tire tread, and reinforcing ribs are provided between adjacent left tread blocks and between adjacent right tread blocks.

3. The tire according to claim 2, wherein, The height of the reinforcing rib is 1 / 3 - 1 / 2 of the depth of the first longitudinal groove.

4. The tire according to claim 1, wherein, The length of the inclined portion is less than the length of the vertical portion; the inclined portion includes a first inclined portion and a second inclined portion, and the inclined directions of the first inclined portion and the second inclined portion are opposite, and one end of the same vertical portion is connected to the first inclined portion, and the other end is connected to the second inclined portion.

5. The tire according to claim 4, characterized in that, The offset distances of two adjacent vertical portions with respect to the circumferential center line of the tire tread are different; the offset distances of two alternating vertical portions with respect to the circumferential center line of the tire tread are the same.

6. The tire according to claim 2, wherein, The left tread block and the right tread block are arrow-shaped; a bent portion of the first longitudinal groove defines the arrow head of the left tread block, and a bent portion of the fourth longitudinal groove defines the arrow head of the right tread block; the vertical portion of the second longitudinal groove close to the circumferential center line of the tire tread and the inclined portions at both ends define the arrow tail of the left tread block, and the vertical portion of the third longitudinal groove close to the circumferential center line of the tire tread and the inclined portions at both ends define the arrow tail of the right tread block.

7. The tire according to claim 6, characterized in that, Horizontal steel sheets are provided on the central tread block, the left tread block, and the right tread block.

8. The tire according to claim 7, characterized in that, One end of the steel sheet provided on the left tread block and the right tread block is connected to the arrow head, and the other end is connected to the arrow tail; a groove is provided at the arrow head.

9. The tire according to claim 1, characterized in that, The first longitudinal groove and the left tire shoulder of the tire define a left tire shoulder tread block, the fourth longitudinal groove and the right tire shoulder of the tire define a right tire shoulder tread block, the left tire shoulder tread block and the right tire shoulder tread block are symmetrically arranged, and the left tire shoulder tread block and the right tire shoulder tread block extend discontinuously in the circumferential direction of the tire.

10. The tire according to claim 9, wherein, A first transverse groove is provided between adjacent left tire shoulder tread blocks and between adjacent right tire shoulder tread blocks; a closed second transverse groove is also provided on the left tire shoulder tread block and the right tire shoulder tread block; the width of the second transverse groove is greater than the width of the first transverse groove.

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