An off-road tire

Abstract

The utility model proposes an off-road tire, belonging to the field of tires, the off-road tire comprises a first pattern block group and a second pattern block group, the first pattern block group extends from the center of the tire to the left side of the tire, the first pattern block group comprises a plurality of center pattern blocks and a left shoulder pattern block, and the first pattern block group is in a left-falling shape; the second pattern block group extends from the center of the tire to the right side of the tire, the second pattern block group comprises a plurality of center pattern blocks and a right shoulder pattern block, the right shoulder pattern block and the left shoulder pattern block are centrally symmetrical, and the second pattern block group is in a right-falling shape; wherein, the first pattern block group and the second pattern block group form a "human" shape, and are evenly arranged along the circumference of the tire. The utility model has the characteristics of good off-road performance, passing performance, good high-speed performance and wear resistance.

Description

Technical Field

[0001] The utility model belongs to the technical field of tires, and in particular relates to an off-road tire. Background Art

[0002] With the continuous development of the automobile industry, people's requirements for automobile performance are getting higher and higher, and the functions and uses of tires are becoming more subdivided and refined to meet people's needs for the use of different special vehicles.

[0003] At present, off-road tires are only designed to meet people's needs for different road conditions, that is, they have a single function and cannot achieve the multifunctionality of off-road tires. They should have good off-road performance and passing performance when driving on poor roads and soft bases (such as deserts and swamps), and good high-speed performance and wear resistance when driving on good roads.

[0004] Therefore, in view of the performance requirements of the off-road tire market, how to design an off-road tire to meet the requirements of being able to travel on both poor and soft roads as well as good roads. Utility Model Content

[0005] 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.

[0006] The utility model provides an off-road tire, which solves the technical problem that the off-road tires in the prior art cannot simultaneously meet the requirements of being able to travel on poor roads and soft base roads as well as on good roads. The utility model has the characteristics of having good off-road performance and passing performance when traveling on poor roads and soft base roads (such as deserts and swamps), and having good high-speed performance and wear resistance when traveling on good roads.

[0007] The utility model discloses an off-road tire, which comprises a first tread block group and a second tread block group, wherein the first tread block group extends from the center of the tire to the left side of the tire, the first tread block group comprises a plurality of center tread blocks and a left shoulder tread block, and the first tread block group is in a left-falling shape; the second tread block group extends from the center of the tire to the right side of the tire, the second tread block group comprises a plurality of center tread blocks and a right shoulder tread block, the right shoulder tread block and the left shoulder tread block are centrally symmetrical, and the second tread block group is in a right-falling shape; wherein the first tread block group and the second tread block group form a "human" shape, and are evenly arranged along the circumference of the tire.

[0008] In some embodiments, the off-road tire also includes a first reinforcing rib and two second reinforcing ribs, the first reinforcing rib is arranged at the center of the tire and distributed along the circumference of the tire, and the height of the first reinforcing rib is 4mm to 6mm; the two second reinforcing ribs are arranged on the left and right sides of the first reinforcing rib, and the height of the second reinforcing rib is 2mm to 4mm.

[0009] In some embodiments, the total area of ​​the first pattern block group and the second pattern block group is S1, and the running surface area of ​​the tire is S, wherein S1=S / 2.

[0010] In some embodiments, the area of ​​the left shoulder block is S 左 , the area of ​​the right shoulder pattern block is S 右 , the area of ​​the central pattern block is S 中 , and S 左 =S 右 =2S 中 .

[0011] In some of the embodiments, a left groove is formed between the plurality of the center blocks in two adjacent first block groups, a left shoulder groove is formed between two adjacent left shoulder blocks, one end of the left shoulder groove is connected to the left groove, and the other end of the left shoulder groove extends to the bottom of the left shoulder.

[0012] In some of the embodiments, a right groove is formed between the plurality of the center blocks in two adjacent second block groups, a right shoulder groove is formed between two adjacent right shoulder blocks, one end of the right shoulder groove is connected to the right groove, and the other end of the right shoulder groove extends to the bottom of the right shoulder.

[0013] In some of the embodiments, the groove depths of the left groove and the right groove are 18 mm to 22 mm, and the groove depths of the left shoulder groove and the right shoulder groove are 22 mm to 24 mm.

[0014] In some of the embodiments, the groove wall angles of the left groove, the right groove, the left shoulder groove and the right shoulder groove are 16°.

[0015] In some of the embodiments, the groove bottoms of the left groove, the right groove, the left shoulder groove and the right shoulder groove are in full arc transition.

[0016] In some of the embodiments, a plurality of protrusions are provided along the circumferential direction of the tire on one end of the left shoulder groove and the right shoulder groove close to the sidewall.

[0017] Compared with the prior art, the beneficial effects of the utility model are:

[0018] 1. The utility model discloses an off-road tire, which adopts the design of multiple block-shaped pattern blocks and the design of wide "human" shaped directional pattern blocks, so that the tire can provide strong grip performance and climbing ability during driving, greatly reducing the damage to soft base (such as deserts and swamps) road surface, thereby ensuring the high passability of the tire on various complex road surfaces.

[0019] 2. The utility model arranges a first reinforcing rib and two second reinforcing ribs at the center of the tire. The first reinforcing rib and the two second reinforcing ribs are arranged in a stepped manner and distributed around the entire tire. Since the first reinforcing rib and the second reinforcing rib are arranged at the bottom of the center tread block, this arrangement can greatly improve the rigidity of the center tread block and reduce the creep of the center tread block, thereby greatly improving the handling stability, high speed and wear resistance of the tire.

[0020] 3. The utility model discloses an off-road tire, in which the total area of ​​the pattern blocks accounts for 50% of the tire running surface area, thereby increasing the tire's contact area, further improving the tire's grip performance, providing greater braking force, thereby shortening the braking distance, and also further improving the handling stability and having a higher passability.

[0021] 4. The utility model designs the area of ​​the left shoulder pattern block and the right shoulder pattern block to be twice the area of ​​the center pattern block. This stable large pattern block design can greatly meet the climbing performance of the tire when there is no road, and can improve the grip of the tire when passing through soft base (such as deserts and swamps), providing good passing performance.

[0022] 5. In the utility model, the left shoulder tread groove is extended to the bottom of the left shoulder, and the right shoulder tread groove is extended to the bottom of the right shoulder. This open tread groove design at both ends of the tire is conducive to improving the mud shedding performance of the tire when driving on muddy roads.

[0023] 6. The utility model adopts a design of deepening the groove depth of all the tread grooves, which can greatly improve the grip performance of the tire and provide strong traction performance.

[0024] 7. The utility model designs the groove wall angle of all the tread grooves to be 16°, which can ensure that the tire has good self-cleaning performance when driving on complex outdoor roads.

[0025] 8. The utility model adopts full arc transition for the groove bottom of all the pattern grooves, which can not only reduce the problem of groove cracking at the groove bottom, but also effectively improve the tear resistance, impact resistance and puncture resistance of the pattern block.

[0026] 9. The utility model provides a plurality of protrusions at the left shoulder groove and the right shoulder groove, which can further improve the grip performance and passing performance of the tire when driving on soft base (such as deserts and swamps). BRIEF DESCRIPTION OF THE DRAWINGS

[0027] 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 on the present invention. In the drawings:

[0028] Figure 1 A schematic diagram of the structure of an off-road tire provided by an embodiment of the utility model;

[0029] Figure 2 AA cross-sectional view of the off-road tire provided by the embodiment of the utility model;

[0030] In the above figures: center pattern block 1, left shoulder pattern block 2, right shoulder pattern block 3, first reinforcing rib 4, second reinforcing rib 5, left pattern groove 6, left shoulder pattern groove 7, right pattern groove 8, right shoulder pattern groove 9, protrusion 10. DETAILED DESCRIPTION

[0031] In order to make the purpose, technical solution and advantages of the utility model clearer, the utility model is described and illustrated in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the utility model and are not used to limit the utility model. Based on the embodiments provided by the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0032] The utility model embodiment provides an off-road tire, Figure 1 is a schematic structural diagram of an off-road tire according to an embodiment of the utility model, Figure 2 FIG. 2 is an AA cross-sectional view of an off-road tire according to an embodiment of the utility model. Figure 1-2As shown, the off-road tire includes a first pattern block group and a second pattern block group, the first pattern block group extends from the center of the tire to the left side of the tire, the first pattern block group includes a plurality of center pattern blocks 1 and a left shoulder pattern block 2, and the first pattern block group is in a left-falling shape; the second pattern block group extends from the center of the tire to the right side of the tire, the second pattern block group includes a plurality of center pattern blocks 1 and a right shoulder pattern block 3, the right shoulder pattern block 3 and the left shoulder pattern block 2 are centrally symmetrical, and the second pattern block group is in a right-falling shape; wherein, the first pattern block group and the second pattern block group form a "human" shape, and are evenly arranged along the circumference of the tire. The utility model adopts the design of multiple block-shaped pattern blocks and the design of wide "human" shaped directional pattern blocks, so that the tire can provide strong grip performance and climbing ability during driving, greatly reducing the damage to the soft base (such as deserts and swamps) road surface, thereby ensuring the high passing performance of the tire on various complex roads.

[0033] Furthermore, the off-road tire also includes a first reinforcing rib 4 and two second reinforcing ribs 5, wherein the first reinforcing rib 4 is arranged at the center of the tire and distributed along the circumference of the tire, and the height of the first reinforcing rib 4 is 4mm to 6mm; the two second reinforcing ribs 5 are arranged on the left and right sides of the first reinforcing rib 4, and the height of the second reinforcing rib 5 is 2mm to 4mm. The utility model arranges the first reinforcing rib 4 and the two second reinforcing ribs 5 at the center of the tire, wherein the first reinforcing rib 4 and the two second reinforcing ribs 5 are arranged in a stepped manner and distributed throughout the circumference of the tire. Since the first reinforcing rib 4 and the two second reinforcing ribs 5 are arranged at the bottom of the center pattern block 1, they not only play a role in reinforcing the center pattern block 1, but also can greatly improve the rigidity of the center pattern block 1 and reduce the creep of the center pattern block 1, thereby effectively improving the stability of the control, high speed and the wear resistance of the tire.

[0034] Furthermore, the sum of the areas of the first pattern block group and the second pattern block group is S1, and the running surface area of ​​the tire is S, wherein S1=S / 2. In the utility model, the total area of ​​all pattern blocks accounts for 50% of the running surface area of ​​the tire, which increases the contact area of ​​the tire, further improves the grip performance of the tire, and provides greater braking force, thereby shortening the braking distance, further improving the stability of the control, and having a higher passability.

[0035] Furthermore, the area of ​​the left shoulder pattern block 2 is S 左 , the area of ​​the right shoulder block 3 is S 右 , the area of ​​the center pattern block 1 is S 中 , and S 左 =S 右 =2S 中The utility model designs the area of ​​the left shoulder pattern block 2 and the right shoulder pattern block 3 to be twice the area of ​​the center pattern block 1. This stable design of large shoulder pattern blocks can not only greatly improve the rock climbing performance of the tire on unpaved roads, but also improve the grip of the tire when passing through soft bases (such as deserts and swamps), providing good passing performance.

[0036] Furthermore, a left groove 6 is formed between the plurality of center blocks 1 in two adjacent first block groups, and a left shoulder groove 7 is formed between two adjacent left shoulder blocks 2. One end of the left shoulder groove 7 is connected to the left groove 6, and the other end of the left shoulder groove 7 extends to the bottom of the left shoulder. In the present invention, one end of the left shoulder groove 7 is connected to the left groove 6, and the other end extends to the bottom of the left shoulder, so that the grooves are interconnected, and the open groove design is beneficial to improving the mud shedding performance of the tire when driving on muddy roads.

[0037] Furthermore, a right groove is formed between the plurality of center blocks in two adjacent second block groups, a right shoulder groove is formed between two adjacent right shoulder blocks, one end of the right shoulder groove is connected with the right groove, and the other end of the right shoulder groove extends to the bottom of the right shoulder. In the utility model, one end of the right shoulder groove 9 is connected with the right groove 8, and the other end extends to the bottom of the right shoulder, so that the grooves are interconnected, and the open groove design is conducive to improving the mud shedding performance of the tire when driving on muddy roads.

[0038] Furthermore, the groove depths of the left groove 6 and the right groove 8 are 18 mm to 22 mm, and the groove depths of the left shoulder groove 7 and the right shoulder groove 9 are 22 mm to 24 mm. The utility model adopts a design of deepening the groove depths of all grooves, which can greatly improve the grip performance of the tire and provide strong traction performance.

[0039] Furthermore, the groove wall angles of the left groove 6, the right groove 8, the left shoulder groove 7 and the right shoulder groove 9 are 16°. The utility model designs the groove wall angles of all grooves to be 16°, which can ensure that the tire has good self-cleaning performance when driving on complex outdoor roads.

[0040] Furthermore, the groove bottoms of the left groove 6, the right groove 8, the left shoulder groove 7 and the right shoulder groove 9 are in full arc transition. The utility model adopts full arc transition for the groove bottoms of all grooves, which can not only reduce the problem of groove cracking at the groove bottom, but also effectively improve the tear resistance, impact resistance and puncture resistance of the pattern block.

[0041] Furthermore, a plurality of protrusions 10 are provided at one end of the left shoulder groove 7 and the right shoulder groove 9 near the sidewall along the circumferential direction of the tire. The utility model provides a plurality of protrusions 10 at the left shoulder groove 7 and the right shoulder groove 9, which can further improve the grip performance and passing performance of the tire when driving on a soft base (such as a desert and a swamp).

[0042] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0043] The above-mentioned embodiments only express several implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. An off-road tire, characterized in that: include: A first tread block group, the first tread block group extending from the center of the tire to the left side of the tire, the first tread block group including a plurality of center tread blocks and a left shoulder tread block, and the first tread block group being in a slanting shape; A second tread block group, the second tread block group extends from the center of the tire to the right side of the tire, the second tread block group includes a plurality of center tread blocks and a right shoulder tread block, the right shoulder tread block and the left shoulder tread block are centrally symmetrical, and the second tread block group is in a dot-shaped shape; The first tread block group and the second tread block group form a herringbone shape and are evenly arranged along the circumference of the tire.

2. The off-road tire according to claim 1, characterized in that: Also includes: A first reinforcing rib, the first reinforcing rib is arranged at the center of the tire and distributed along the circumference of the tire, and the height of the first reinforcing rib is 4 mm to 6 mm; Two second reinforcing ribs are provided on the left and right sides of the first reinforcing rib, and the height of the second reinforcing rib is 2 mm to 4 mm.

3. The off-road tire according to claim 1, characterized in that: The total area of ​​the first pattern block group and the second pattern block group is S1, and the running surface area of ​​the tire is S, wherein S1=S / 2.

4. The off-road tire according to claim 1, characterized in that: The area of ​​the left shoulder tread block is S 左 , the area of ​​the right shoulder pattern block is S 右 , the area of ​​the central pattern block is S 中 , and S 左 =S 右 =2S 中 .

5. The off-road tire according to claim 1, characterized in that: A left groove is formed between the plurality of the center blocks in two adjacent first block groups, and a left shoulder groove is formed between two adjacent left shoulder blocks. One end of the left shoulder groove is connected to the left groove, and the other end of the left shoulder groove extends to the bottom of the left shoulder.

6. The off-road tire according to claim 5, characterized in that: A right groove is formed between the plurality of the center blocks in two adjacent second block groups, and a right shoulder groove is formed between two adjacent right shoulder blocks. One end of the right shoulder groove is connected to the right groove, and the other end of the right shoulder groove extends to the bottom of the right shoulder.

7. The off-road tire according to claim 6, characterized in that: The groove depths of the left and right grooves are 18 mm to 22 mm, and the groove depths of the left and right shoulder grooves are 22 mm to 24 mm.

8. The off-road tire according to claim 6, characterized in that: The groove wall angles of the left groove, the right groove, the left shoulder groove and the right shoulder groove are 16°.

9. The off-road tire according to claim 6, characterized in that: The groove bottoms of the left groove, the right groove, the left shoulder groove and the right shoulder groove are in full arc transition.

10. The off-road tire according to claim 6, characterized in that: The left shoulder groove and the right shoulder groove are provided with a plurality of protrusions along the circumferential direction of the tire at one end close to the sidewall.

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