Tread pattern structure of model car tire and model car tire

Abstract

The invention provides a tread pattern structure of a model car tire, a plurality of pattern units are symmetrically and uniformly distributed on the tread of the tire at intervals along the circumferential direction of the tire, and each pattern unit comprises a tread center pattern group and a tire shoulder pattern group which are horizontally arranged along the axial direction of the tire; every two tread center pattern groups adjacent in the circumferential direction are arranged in a staggered mode at intervals in the axial direction, and each tread center pattern group is composed of two center sub-pattern blocks which are arranged at intervals in the circumferential direction to form a stack; the tire shoulder pattern group is composed of two tire shoulder sub-pattern blocks which are arranged at intervals in the circumferential direction to form a stack, the long sides of the tire shoulder sub-pattern blocks are located in the axial direction of the tire, and the short sides of the tire shoulder sub-pattern blocks are located in the circumferential direction of the tire; the included angle between the side wall of the axial inner side, close to the center of the tread, of each central sub pattern block and each tire shoulder sub pattern block and the normal plane of the edge of the top surface of the pattern block is 0 degree; and each central sub-pattern block and each tire shoulder sub-pattern block are only formed by an independent arc surface between the side walls of the axial outer sides, far away from the center of the tire tread, and the top surfaces of the central sub-pattern blocks and the tire shoulder sub-pattern blocks.

Description

Technical Field

[0001] The invention relates to a tire tread pattern structure, in particular to a model car tire tread pattern structure and a model car tire. Background Art

[0002] In recent years, various types of car racing events have been held in full swing in the domestic market. Model car racing has won the favor of many fans for its high entertainment value. The terrain of model car racing has been extended from the conventional cement and asphalt roads to the new off-road terrain, and the models of the competition have also gradually expanded from the previous two-wheel model cars to the emerging four-wheel model car field.

[0003] Conventional racing model cars are mainly two-wheeled. In order to meet the traction performance of off-road terrain, the tire pattern is often composed of several independent pattern blocks of different shapes arranged at intervals of 10' or 20', such as Figure 1 As shown in the figure, this pattern has good straight-ahead traction, but its steering is not sensitive and its steering response is poor. At the same time, because the model car is light, it is easy to shake when turning, resulting in poor driving stability. Figure 2 As shown, the axially inner side wall surface 11' and the axially outer side wall surface 12' of the pattern block are both planes and form angles with the normal plane of the top edge of the pattern block where they are located. This design will form a stronger pattern block strength, but it will reduce the turning response of the tire and affect the overall turning ease.

[0004] Therefore, it is difficult for general model car tires to meet the traction, steering stability and ease of handling of four-wheel model vehicles when driving on off-road terrain, and achieve comprehensive performance. Summary of the invention

[0005] The purpose of the present invention is to provide a tread pattern optimization structure of a model car tire for off-road roads, which can ensure the traction of the tire while improving the steering stability and ease of handling of the tire when driving on off-road roads.

[0006] In order to solve the above technical problems, the present invention provides a tread pattern structure of a model car tire, wherein the tread of the tire has a plurality of pattern units evenly distributed at symmetrical intervals along the circumference of the tire, and each of the pattern units includes a tread center pattern group and a shoulder pattern group horizontally arranged along the axial direction of the tire;

[0007] The tread center pattern groups in two circumferentially adjacent pattern units are respectively arranged in an axially spaced and staggered manner, and the tread center pattern group is composed of two center sub-pattern blocks stacked and spaced from each other in the circumferential direction;

[0008] The shoulder pattern group is composed of two shoulder sub-pattern blocks stacked and spaced circumferentially, the long side of the shoulder sub-pattern block is located in the tire axial direction, and the short side of the shoulder sub-pattern block is located in the tire circumferential direction;

[0009] The angle between the sidewall of each central sub-pattern block and each shoulder sub-pattern block on the axial inner side close to the tread center and the normal plane of the top edge of the pattern block is 0°;

[0010] The sidewalls of each of the central sub-pattern blocks and each of the shoulder sub-pattern blocks on the axially outer side away from the tread center and the top surface of the pattern blocks are formed by only a single arc surface.

[0011] In a preferred embodiment, two identical nearly square central sub-pattern blocks are stacked circumferentially to form a nearly rectangular central tread pattern group;

[0012] A nearly square shoulder pattern group is formed by stacking two identical nearly rectangular shoulder sub-pattern blocks circumferentially;

[0013] The axial length L2 of the shoulder sub-pattern block is greater than the axial length L1 of the center sub-pattern block;

[0014] The tread center pattern group and the shoulder pattern group in each pattern unit are located on the same axial straight line, and the edges of the tread center pattern group or the shoulder pattern group of two adjacent pattern units are located on the same axial straight line.

[0015] In a preferred embodiment, a plurality of the tread center pattern groups are arranged at intervals along the circumferential direction to form a circumferential row, and a plurality of the shoulder pattern groups are arranged at intervals along the circumferential direction to form a circumferential row.

[0016] In a preferred embodiment, the number of circumferential rows of the tread center pattern group distributed on the tread is an even number, the distribution structure in two circumferentially adjacent pattern units is the same, and the two are symmetrically arranged alternately along the tread center plane.

[0017] In a preferred embodiment, the number of circumferential rows of the tread center pattern group distributed in the center of the tread is an odd number, and the pattern units are divided into a first pattern unit and a second pattern unit;

[0018] The first pattern unit is composed of an odd number of tread center pattern groups and two shoulder pattern groups, and the second pattern unit is composed of an even number of tread center pattern groups;

[0019] Each of the first pattern units and the second pattern units are symmetrically distributed along the center plane of the tread, and the first pattern units and the second pattern units are alternately arranged.

[0020] In a preferred embodiment, the circumferential length of the tread center pattern group is H1, and the circumferential length of the shoulder pattern group is H2, H1=H2; the circumferential length of the center sub-pattern block is H3, and the circumferential length of the shoulder sub-pattern block is H4, H3=H4.

[0021] In a preferred embodiment, the axial length of the central sub-pattern block is L1, and the axial length of the shoulder sub-pattern block is L2;

[0022] Among them, the ratio of L2 to L1 is 1.5-2.5; the ratio of H1 to L1 is 2-3; the ratio of H2 to L2 is 1-1.5.

[0023] In a preferred embodiment, circumferential low ribs and axial low ribs are provided between the circumferential and axial intervals of the tread center pattern group;

[0024] A circumferential connecting strip is provided between two circumferentially adjacent shoulder pattern groups, and two ends of the circumferential connecting strip are respectively connected to the shoulder sub-pattern blocks at corresponding positions.

[0025] The invention also provides a model car tire, the tread pattern structure of the tire is set to the tread pattern structure of the model car tire.

[0026] Compared with the prior art, the technical solution of the present invention has the following beneficial effects:

[0027] Through the optimization design of the tread pattern of the model car tire, the tread is composed of a number of pattern units symmetrically and evenly distributed along the circumference of the tire, each pattern unit is composed of a center pattern group and a shoulder pattern group horizontally arranged along the axial direction of the tire, the center pattern groups in two circumferentially adjacent pattern units are respectively arranged evenly and staggered along the axial direction, and two identical nearly square center sub-pattern blocks are stacked in sequence at circumferential intervals to form a rectangular center pattern group, and two identical rectangular shoulder sub-pattern blocks are stacked in sequence at circumferential intervals to form a nearly square shoulder pattern group. The length of the shoulder sub-pattern block is The long side is located in the axial direction of the tire, the short side is located in the circumferential direction of the tire, and the axial length of the shoulder sub-pattern block is greater than the axial length of the center sub-pattern block. The angle between the axially inner sidewall of each center sub-pattern block and the shoulder sub-pattern block close to the center of the tread and the normal plane of the top surface edge of the pattern block is 0 degrees. The axially outer sidewall of each center sub-pattern block and the shoulder sub-pattern block away from the center of the tread and the pattern block top surface are composed of only a single arc surface. This arrangement can ensure the traction of the tire while improving the steering stability and handling ease of the tire when driving on off-road roads. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a schematic diagram of the tire tread pattern expansion of the prior art;

[0029] Figure 2 For along Figure 1 A-A' sectional view;

[0030] Figure 3 It is a schematic diagram of the development of the tread pattern of the tire of the first embodiment of the present invention;

[0031] Figure 4 For along Figure 3 BB' sectional view;

[0032] Figure 5 For along Figure 3 The C-C' sectional view;

[0033] Figure 6 A schematic diagram of the tread pattern of a tire in the second embodiment of the present invention;

[0034] Figure 7 A schematic diagram of the development of the tread pattern of a tire in the third embodiment of the present invention;

[0035] Figure 8 Schematic diagram of the tread pattern of a tire in the fourth embodiment of the present invention.

[0036] Explanation of the accompanying drawings: 1. tire tread; 10. tread center pattern group; 10a. first upper edge; 10b. first lower edge; 11. center sub-pattern block; 111. first side wall; 112. first top surface edge; 113. first arc surface; 20. shoulder pattern group; 20a. second upper edge; 20b. second lower edge; 21. shoulder sub-pattern block; 211. second side wall; 212. second top surface edge; 213. second arc surface; 31. circumferential low rib; 32. axial low rib; 33. connecting strip; A. pattern unit; B. first pattern unit; C. second pattern unit. DETAILED DESCRIPTION

[0037] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention; it is obvious that the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments, and all other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making creative work are within the scope of protection of the present invention.

[0038] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top / bottom" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0039] In the description of the present invention, it should be noted that, unless otherwise clearly stipulated and limited, the terms "installed", "provided with", "installed / connected", "connected", etc. should be understood in a broad sense. For example, "connection" can be a wall-mounted connection, a detachable connection, or an integral connection. It can be a mechanical connection or an electrical connection. It can be a direct connection or an indirect connection through an intermediate medium. It can be the internal connection of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0040] First embodiment, reference Figure 3-Figure 5 .

[0041] The present embodiment provides a tread pattern structure of a model car tire, which relates to a tread pattern structure of a tire, and particularly refers to a tread pattern structure of a four-wheel model car tire used on off-road surfaces. An improved tread pattern structure design is adopted to ensure the traction of the tire while improving the steering stability and handling ease of the tire when driving on off-road surfaces.

[0042] like Figure 3 In the figure, the vertical direction is set as the tire circumferential direction, the direction perpendicular to the paper plane is set as the tire radial direction, the transverse direction is set as the tire axial direction, the direction close to the tire center plane is the axial inner side, and the direction far from the tire center plane is the axial outer side.

[0043] The tire tread 1 is composed of a plurality of pattern units A symmetrically spaced and evenly distributed along the tire circumference, each pattern unit A includes a tread center pattern group 10 and a shoulder pattern group 20 horizontally arranged along the tire axial direction. The tread center pattern group 10 at the center of the tread can form a larger longitudinal edge, play a high longitudinal pattern effect, and enhance the handling performance of the tire. The shoulder pattern group 20 at the shoulder position can form a comprehensive longitudinal and transverse edge, which can ensure traction and improve the steering stability of the tire.

[0044] The specific distribution is that the tread center pattern groups 10 in two circumferentially adjacent pattern units A are respectively arranged in an axially spaced and staggered uniform manner, and the tread center pattern group 10 is formed by circumferentially stacking two identical nearly square center sub-pattern blocks 11, and the tread center pattern group 10 is a rectangular tread center pattern group 10, and the two center sub-pattern blocks 11 are stacked at intervals along the circumferential direction. The shoulder pattern group 20 is formed by circumferentially stacking two identical rectangular shoulder sub-pattern blocks 21, and the shoulder pattern group 20 is a nearly square shoulder pattern group 20, and the two shoulder sub-pattern blocks 21 are stacked at intervals along the circumferential direction.

[0045] Each center sub-pattern block 11 has the same height and width, so each center sub-pattern block 11 is formed in the same nearly square shape. Each shoulder sub-pattern block 21 has the same height and width, so each shoulder sub-pattern block 21 is formed in the same rectangular shape. The long side of the shoulder sub-pattern block 21 is located in the tire axial direction, the short side is located in the tire circumferential direction, and the axial length L2 of the shoulder sub-pattern block 21 is greater than the axial length L1 of the center sub-pattern block 11. Designing a pattern block with a longer axial edge at the shoulder position can increase the traction performance of cornering.

[0046] like Figure 3 , the circumferential positions of each tread center pattern group 10 and the shoulder pattern group 20 of the same pattern unit A are the same, that is, the first upper edge 10a or the first lower edge 10b of each tread center pattern group 10 of the same pattern unit A is respectively located on the same axial straight line with the second upper edge 20a or the second lower edge 20b of the shoulder pattern group 20 of the same pattern unit A. The edges of the tread center pattern group 10 or the shoulder pattern group 20 of two adjacent pattern units are located on the same axial straight line, that is, the first upper edge 10a of the tread center pattern group 10 is respectively located on the same axial straight line with the first lower edge 10b of the tread center pattern group 10 in the adjacent pattern unit A, which can improve the steering stability of the tire. The length H1 of the tread center pattern group 10 formed by the circumferential stacking of the two center sub-pattern blocks 11 is the same as the length H2 of the shoulder pattern group 20 formed by the circumferential stacking of the two shoulder sub-pattern blocks 21. When the tire is in the straight and turning process, it can ensure balanced ground contact conversion and provide tire steering stability.

[0047] In order to improve the traction performance of the tire when turning, the ratio of the axial length L2 of the shoulder sub-pattern block 21 to the axial length L1 of the center sub-pattern block 11 is 1.5-2.5. The two shoulder sub-pattern blocks 21 stacked at the shoulder form a larger lateral edge to ensure sufficient traction when turning. When the axial length L2 of the shoulder sub-pattern block 21 is too small, it will affect the improvement of the tire's turning stability; when the axial length L2 of the shoulder sub-pattern block 21 is too large, the tire's responsiveness decreases, which in turn affects the tire's overall handling performance. At the same time, the circumferential length H3 of the center sub-pattern block 11 is the same as the circumferential length H4 of the shoulder sub-pattern block 21, which can ensure that each pattern block has the same strength, exerts balanced ground traction, and ensures the stability of the tire's steering.

[0048] In addition, the ratio of the circumferential length H1 of the tread center pattern group 10 formed by the circumferential stacking of the two center sub-pattern blocks 11 to the axial length L1 of the center sub-pattern block 11 is 2-3. The two center sub-pattern blocks 11 stacked circumferentially in the center of the tread form a larger longitudinal edge, exerting a high longitudinal pattern effect and enhancing the handling performance of the tire. When the circumferential length H1 of the tread center pattern group 10 is too small, its effect on improving handling is limited; when the circumferential length H1 of the tread center pattern group 10 is too large, the tire has insufficient traction when turning and the turning performance is reduced. The ratio of the circumferential length H2 of the shoulder pattern group 20 formed by the circumferential stacking of the two shoulder sub-pattern blocks 21 to the axial length L2 of the shoulder sub-pattern block 21 is 1-1.5. When the circumferential length H2 of the shoulder pattern group 20 is too small, the shoulder sub-pattern block 21 will not be rigid enough when the tire turns, causing the shoulder sub-pattern block 21 to be easily torn and damaged, thereby affecting the turning traction; when the circumferential length H2 of the shoulder pattern group 20 is too large, the tire will easily get stuck when turning, which will affect the turning performance of the tire.

[0049] like Figure 4-5, the angle between the first side wall 111 of each central sub-pattern block 11 close to the center of the tread and the normal plane of the first top surface edge 112 of the pattern block is 0 degrees, that is, the angle between the inner side wall (first side wall 111) on the axial inner side of the central sub-pattern block 11 and the normal plane of the first top surface edge 112 of the pattern block is 0 degrees, and the axial outer side wall of each central sub-pattern block 11 away from the center of the tread and the top surface of the central sub-pattern block 11 are directly composed of a single first arc surface 113, that is, the top surface of the pattern block and its axial outer side wall are composed of a single first arc surface 113. When the tire is running and touching the ground, this setting can make the pattern block more easily deformed, thereby improving the traction of the tire. The first arc surface 113 of the central sub-pattern blocks 11 on both sides of the tread are arranged on the axial outer side of the pattern block, so that it is designed to be symmetrical along the center of the tread, thereby improving the steering stability and lightness of the tire. Similarly, the angle between the second sidewall 211 of each shoulder sub-pattern block 21 close to the center of the tread and the normal plane of the second top surface edge 212 of the pattern block is 0 degrees. The axially outer sidewall of each shoulder sub-pattern block 21 away from the center of the tread and the top surface of the shoulder sub-pattern block 21 are directly composed of an independent second arc surface 213, that is, the top surface of the pattern block and its axially outer side wall are composed of a single second arc surface 213, and the second arc surfaces 213 of the shoulder sub-pattern blocks 21 on both sides of the tread are arranged on the axial outer side of the pattern block. When the tire is running and touching the ground, this setting can make the pattern block more easily deformed, and the tire has stronger traction; at the same time, the axially inner and outer sidewalls of the pattern blocks on both sides of the tread are designed to be symmetrical along the center of the tread, thereby improving the steering stability and lightness of the tire.

[0050] Use Figure 3 A variety of four-wheel model car tires with front and rear tire specifications of 84X30 were trial-produced and their performance was tested and evaluated. The front wheels of each test tire were equipped with rims of 23.7X55.8 and then installed on a four-wheel model car and driven on off-road terrain. The four-wheel model car was remotely controlled to observe its driving path, vehicle reaction and stability when turning, obstacle passing performance and completion time, and evaluate its driving traction, steering stability and ease of handling. After testing and evaluation, the traction, steering stability and ease of handling of the embodiment are better than those of the previous examples.

[0051] The test results confirm that the use of this tread pattern design can effectively ensure the traction of the tire while improving the steering stability and ease of handling of the tire on off-road surfaces.

[0052] In this embodiment, a tire pattern structure is provided, wherein a plurality of tread center pattern groups 10 are arranged at intervals in the circumferential direction to form a circumferential row, and a plurality of shoulder pattern groups 20 are arranged at intervals in the circumferential direction to form a circumferential row.

[0053] When the number of circumferential rows formed by the tread center pattern group 10 is an even number, the distribution structure of the tread center pattern group 10 and the shoulder pattern group 20 in two circumferentially adjacent pattern units A is the same, and the two pattern units A are symmetrically arranged alternately along the tread center plane. This arrangement will make the tread center pattern group 10 and the shoulder pattern group 20 alternately arranged at intervals, thereby improving the steering stability of the tire.

[0054] like Figure 3 , providing a single pattern unit A including a shoulder pattern group 20 and two tread center pattern groups 10, forming a tread center pattern group 10 with four circumferential rows on the tread.

[0055] The second embodiment, referring to Figure 6 .

[0056] In this embodiment, a tire pattern structure is provided, wherein a plurality of tread center pattern groups 10 are arranged at intervals in the circumferential direction to form a circumferential row, and a plurality of shoulder pattern groups 20 are arranged at intervals in the circumferential direction to form a circumferential row.

[0057] Consistent with the first embodiment, when the number of circumferential rows formed by the tread center pattern group 10 is set to an even number, the distribution is different from that of the first embodiment, providing a single pattern unit A including a shoulder pattern group 20 and a tread center pattern group 10, and forming a tread center pattern group 10 with two circumferential rows on the tread, such as Figure 6 .

[0058] The third embodiment, referring to Figure 7 .

[0059] In this embodiment, a tire pattern structure is provided, wherein a plurality of tread center pattern groups 10 are arranged at intervals in the circumferential direction to form a circumferential row, and a plurality of shoulder pattern groups 20 are arranged at intervals in the circumferential direction to form a circumferential row.

[0060] When the number of circumferential rows formed by the tread center pattern group 10 is an odd number, the pattern unit A is divided into a first pattern unit B and a second pattern unit C. Figure 7 The first pattern unit B is composed of an odd number of tread center pattern groups 10 and two shoulder pattern groups 20 on both sides, and the second pattern unit C is composed of an even number of tread center pattern groups 10. Each first pattern unit B and second pattern unit C are symmetrical along the tread center plane and are arranged alternately. This arrangement will make the tread center pattern group 10 and the shoulder pattern group 20 alternately arranged at intervals, thereby improving the steering stability of the tire.

[0061] like Figure 7, a first pattern unit B is formed by a tread center pattern group 10 and two shoulder pattern groups 20, and a second pattern unit C is formed by two tread center pattern groups 10, forming a tread center pattern group 10 with three circumferential rows on the tread. The first sidewalls 111 of the two center sub-pattern blocks 11 in the same tread center pattern group 10 located at the tread center plane position are respectively located at the axial sides of the tread center, and the first arc surfaces 113 of the two center sub-pattern blocks 11 in the same tread center pattern group 10 located at the tread center plane position are respectively located at the axial sides of the tread center.

[0062] Fourth embodiment, reference Figure 8 .

[0063] In this embodiment, a tire tread structure is provided that can improve the traction performance of the tire on off-road terrain.

[0064] like Figure 8 Circumferential low ribs 31 and axial low ribs 32 can be arranged between the circumferential and axial intervals of the central sub-pattern blocks 11 of the tread, and circumferential connecting strips 33 can be arranged between two circumferentially adjacent shoulder pattern groups 20, and the two ends of the circumferential connecting strips 33 are respectively connected to the shoulder sub-pattern blocks 21 at corresponding positions of the two adjacent shoulder pattern groups 20. The traction performance of the tire on off-road terrain can be improved.

[0065] The above is only a preferred specific implementation of the present invention, but the design concept of the present invention is not limited to this. Any technician familiar with the technical field who uses this concept to make non-substantial changes to the present invention within the technical scope disclosed by the present invention shall be deemed to infringe the protection scope of the present invention.

Claims

1. The tread pattern structure of the model car tire is characterized by: The tread of the tire has a plurality of pattern units evenly distributed at symmetrical intervals along the circumference of the tire, each of the pattern units comprising a tread center pattern group and a shoulder pattern group horizontally arranged along the axial direction of the tire; The tread center pattern groups in two circumferentially adjacent pattern units are respectively arranged in an axially spaced staggered manner, and the tread center pattern group is composed of two center sub-pattern blocks stacked by circumferentially spaced positions; the shoulder pattern group is composed of two shoulder sub-pattern blocks stacked by circumferentially spaced positions, the long sides of the shoulder sub-pattern blocks are located in the tire axial direction, and the short sides of the shoulder sub-pattern blocks are located in the tire circumferential direction; The angle between the sidewall of each central sub-pattern block and each shoulder sub-pattern block on the axial inner side close to the tread center and the normal plane of the top edge of the pattern block is 0°; The sidewalls of each of the central sub-pattern blocks and each of the shoulder sub-pattern blocks on the axially outer side away from the tread center and the top surface of the pattern blocks are formed by only a single arc surface.

2. The tread pattern structure of the model car tire according to claim 1, characterized in that: A nearly rectangular tread center pattern group is formed by circumferentially stacking two identical nearly square center sub-pattern blocks; A nearly square shoulder pattern group is formed by stacking two identical nearly rectangular shoulder sub-pattern blocks circumferentially; The axial length L2 of the shoulder sub-pattern block is greater than the axial length L1 of the center sub-pattern block; The tread center pattern group and the shoulder pattern group in each pattern unit are located on the same axial straight line, and the edges of the tread center pattern group or the shoulder pattern group of two adjacent pattern units are located on the same axial straight line.

3. The tread pattern structure of the model car tire according to claim 2, characterized in that: A plurality of the tread center pattern groups are arranged at intervals along the circumferential direction to form a circumferential row, and a plurality of the shoulder pattern groups are arranged at intervals along the circumferential direction to form a circumferential row.

4. The tread pattern structure of the model car tire according to claim 3, characterized in that: The number of circumferential rows of the tread center pattern group distributed on the tread is an even number, the distribution structure in two circumferentially adjacent pattern units is the same, and the two are symmetrically arranged alternately along the tread center plane.

5. The tread pattern structure of the model car tire according to claim 3, characterized in that: The number of circumferential rows of the tread center pattern group distributed on the tread is an odd number, and the pattern units are divided into a first pattern unit and a second pattern unit; The first pattern unit is composed of an odd number of tread center pattern groups and two shoulder pattern groups, and the second pattern unit is composed of an even number of tread center pattern groups; Each of the first pattern units and the second pattern units are symmetrically distributed along the center plane of the tread, and the first pattern units and the second pattern units are alternately arranged.

6. The tread pattern structure of a model car tire according to claim 1, characterized in that: The circumferential length of the tread center pattern group is H1, and the circumferential length of the shoulder pattern group is H2, H1=H2; the circumferential length of the center sub-pattern block is H3, and the circumferential length of the shoulder sub-pattern block is H4, H3=H4.

7. The tread pattern structure of the model car tire according to claim 6, characterized in that: The axial length of the central sub-pattern block is L1, and the axial length of the shoulder sub-pattern block is L2; Among them, the ratio of L2 to L1 is 1.5-2.5; the ratio of H1 to L1 is 2-3; the ratio of H2 to L2 is 1-1.

5.

8. The tread pattern structure of a model car tire according to claim 1, characterized in that: Circumferential low ribs and axial low ribs are arranged between the circumferential and axial intervals of the tread center pattern group; A circumferential connecting strip is provided between two circumferentially adjacent shoulder pattern groups, and two ends of the circumferential connecting strip are respectively connected to the shoulder sub-pattern blocks at corresponding positions.

9. Model car tire, characterized by: The tread pattern structure of the tire is set to the tread pattern structure of the model vehicle tire described in any one of claims 1-8.

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