All-steel truck tubeless radial tire tread pattern structure and tire

Abstract

The utility model relates to an all-steel truck tubeless radial tire tread pattern structure and a tire. The pattern structure comprises first longitudinal pattern grooves which are formed in the center of the tire crown and are distributed along the circumferential direction of the tire tread; the second longitudinal pattern grooves are uniformly formed in the two sides of the first longitudinal pattern grooves and are distributed in the circumferential direction of the tire tread; and a lateral pattern portion interposed between the first longitudinal groove and the second longitudinal groove. Compared with the prior art, the tire disclosed by the utility model has good guidance quality, drainage performance, road holding force, puncture resistance and sideslip resistance under high-speed driving, and the traction force and the lateral force of the tire are improved by continuously changing pattern groove angles.

Description

Technical Field

[0001] The utility model belongs to the technical field of tire design, in particular to a tread pattern structure of a full-steel load-bearing tubeless radial tire and a tire. Background Art

[0002] Tires are donut-shaped elastic rubber products used for ground contact and rolling, which are installed on various vehicles or machines. They are usually installed on metal rims, can support the vehicle body, buffer external impact, achieve contact with the road surface and ensure the driving performance of the vehicle. Tires are often used under complex and harsh conditions. They are subjected to various deformations, loads, forces, and high and low temperatures when driving, so they must have high load-bearing performance, traction performance and buffering performance. At the same time, they are also required to have high wear resistance and flex resistance, as well as low rolling resistance and heat generation. Half of the world's rubber consumption is used in tire production, which shows the ability of tires to consume rubber.

[0003] There are many different designs of tire treads. Their designs are based on the suitability for different purposes and road conditions. These aspects should also be considered when selecting tires. Tire treads play a very important role in the entire driving process. A well-designed tread can not only effectively save fuel, but also reduce the noise generated by the car during driving. At the same time, it can enhance the driving force, braking force and traction performance of the car on various harsh and slippery roads, thereby improving the safety of car driving.

[0004] There are generally several types of tire patterns:

[0005] (1) Straight groove pattern, also called ordinary pattern, is a pattern design with longitudinal grooves as the main feature.

[0006] Features: excellent operating stability, small rotation resistance, low noise, especially excellent drainage performance, not easy to slip laterally.

[0007] Applicable: vehicles used on flat roads: cars, trucks, and even airplanes.

[0008] Disadvantages: Poor drive and traction.

[0009] (2) Horizontal groove pattern: A pattern design with horizontal grooves as the main feature.

[0010] Features: The driving force, braking force and traction of the transverse groove pattern are particularly excellent, and its wear resistance is excellent.

[0011] Applicable: gravel roads and other harsh road conditions Vehicle type: mostly used in industrial and medium and short-distance vehicles such as bulldozers, excavators, loaders and other medium and heavy-duty trucks.

[0012] Disadvantages: loud noise.

[0013] (3) Vertical and horizontal groove pattern: Vertical and horizontal groove pattern is also called comprehensive pattern, which combines the design of straight groove type and horizontal groove type.

[0014] Features: It combines the advantages of both longitudinal and transverse groove patterns.

[0015] Applicable: bad road conditions.

[0016] Disadvantages: prone to abnormal wear.

[0017] (4) Block pattern: The pattern is arranged regularly in blocks.

[0018] Features: Good driving force and braking force, providing power to drive the car forward.

[0019] Applicable to: snowy, muddy and other roads.

[0020] Disadvantages: poor wear resistance and short mileage life.

[0021] The main driving routes of tubeless tires on the market are roads above paved roads. The main quality defects of tires are shoulder hollow, crown hollow and poor wear resistance. Tires have high requirements for tread patterns and should have good wear resistance and novel appearance.

[0022] For example, CN111703258A discloses a tread structure and a tire, wherein the tread structure sequentially arranges outer shoulder ribs, center ribs and inner shoulder ribs separated by longitudinal main grooves from the outside to the inside; the outer shoulder ribs are provided with a plurality of first transverse grooves arranged circumferentially and axially with unequal pitches; the inner shoulder ribs are provided with a plurality of second transverse grooves arranged circumferentially and axially with unequal pitches; the first transverse grooves penetrate the longitudinal main grooves; the second transverse grooves axially penetrate the inner shoulder ribs; the pitch of the first transverse grooves is greater than the pitch of the second transverse grooves; the groove width of the first transverse grooves is less than the groove width of the second transverse grooves; the center ribs are provided with a plurality of first sipes with unequal spacing; the first sipes are arranged axially and tilted, and at least one end penetrates the adjacent longitudinal main grooves. However, the application only has poor design guidance, poor drainage and poor grip of the transverse groove pattern. Utility Model Content

[0023] The purpose of the utility model is to provide a tread pattern structure of a full-steel load-bearing tubeless radial tire and a tire in order to overcome the defects of the above-mentioned prior art. The matching design of the longitudinal pattern and the transverse pattern in the present application realizes that the tire has good guiding, drainage, grip, puncture resistance and side slip resistance under high-speed driving. In addition, the constantly changing groove angle improves the traction and lateral force of the tire.

[0024] The purpose of the utility model can be achieved through the following technical solutions:

[0025] The utility model provides a tread pattern structure of an all-steel load-bearing tubeless radial tire, comprising:

[0026] A first longitudinal groove is arranged at the center of the crown and distributed along the circumference of the tire tread, wherein the bottom surface of the first longitudinal groove in the form of a circular arc transition extends radially outward to the tread surface to form a groove with a gradually increasing width;

[0027] Second longitudinal grooves are evenly arranged on both sides of the first longitudinal grooves and distributed along the circumferential direction of the tire tread, wherein the bottom surfaces of the second longitudinal grooves are arc-shaped and extend radially outward to the tread surface to form grooves with gradually increasing widths;

[0028] And a transverse pattern portion extending from the outer wall of the first longitudinal groove to the outer wall of the second longitudinal groove and distributed along the circumferential direction of the tire tread for improving driving performance.

[0029] Furthermore, the transverse pattern portion includes:

[0030] A plurality of first steel sheets and a plurality of second steel sheets extending from the second longitudinal groove to the first longitudinal groove and distributed alternately along the circumferential direction of the tire tread, wherein the first steel sheets are distributed in a zigzag pattern and have only one bend located at the center, and the second steel sheets are distributed in a zigzag pattern and have a plurality of bends located thereat;

[0031] And a plurality of third steel sheets and a plurality of fourth steel sheets extending from the second longitudinal groove to the first longitudinal groove and alternately arranged along the circumferential direction of the tire tread, the third steel sheets are distributed in a zigzag pattern and have only one bending point which is arranged at the center, the fourth steel sheets are distributed in a zigzag pattern and have several bending points, the first steel sheet and the third steel sheet have opposite bending trends, and the second steel sheet and the fourth steel sheet have opposite bending trends.

[0032] Furthermore, the transverse pattern portion also includes connecting plates arranged at the center of the first steel sheet and the second steel sheet, and at the center of the third steel sheet and the fourth steel sheet.

[0033] Furthermore, the first pattern block and the first twill block are alternately formed between the first steel sheet and the second steel sheet, the second pattern block or the second twill block is alternately formed between the third steel sheet and the fourth steel sheet, the first pattern block is wider than the first twill block, and the second pattern block is wider than the second twill block;

[0034] The first twill block has a plurality of first inclined sections extending from the first steel sheet to the second steel sheet, and a groove is formed between two adjacent first inclined sections;

[0035] The second twill block has a plurality of second inclined sections extending from the third steel sheet to the fourth steel sheet, and a groove is formed between two adjacent second inclined sections.

[0036] Furthermore, a plurality of first protrusions are distributed in the first longitudinal groove.

[0037] Furthermore, a plurality of second protrusions are distributed in the second longitudinal groove.

[0038] Furthermore, the width of the second longitudinal groove is at least greater than the width of the first longitudinal groove.

[0039] Furthermore, a plurality of exhaust holes are distributed on the first longitudinal groove, the second longitudinal groove, and the transverse pattern portion.

[0040] Furthermore, the two walls of the first longitudinal groove are zigzag straight lines along the circumferential direction of the tire tread, and the lengths of two adjacent straight lines are equal; the two walls of the second longitudinal groove are zigzag straight lines along the circumferential direction of the tire tread, and the lengths of two adjacent straight lines are different, and the lengths of two interval-arranged straight lines are equal.

[0041] The utility model further provides a tire, comprising:

[0042] tire carcass; and

[0043] The invention discloses a tread pattern structure of an all-steel load-bearing tubeless radial tire arranged on the tread of the tire carcass and as described above.

[0044] Compared with the prior art, the utility model has the following beneficial effects:

[0045] 1. The tire with a medium pattern structure of the utility model adopts a mixed pattern of straight grooves and folded grooves and a variable design; the rigidity of the tire shoulder is rationally designed, and the tire has excellent anti-eccentric wear performance; the deep pattern design has a long wear life; and the tire body has excellent durability.

[0046] The exhaust holes facilitate exhaust during vulcanization to prevent air pockets from causing rounded corners of the pattern and lack of rubber on the sidewalls, promote rubber flow, and make the rubber vulcanization more uniform. The transverse pattern portion improves the early grip, and the groove angles of the first longitudinal pattern groove and the second longitudinal pattern groove are constantly changing, which improves the traction and lateral force of the tire.

[0047] 2. In the utility model, the first steel sheet and the third steel sheet have opposite bending trends, the second steel sheet and the fourth steel sheet have opposite bending trends, and the bending trends on both sides are opposite, forming an asymmetric pattern, making the tread rigidity cross, and the left and right sides have a "self-locking" function, which improves the grip of the tire, improves the straight-line driving stability of the vehicle on various road surfaces, has excellent drainage and snow removal performance, enhances the stability of driving on harsh surfaces, such as snowy and watery surfaces, and takes into account the driving function on normal roads.

[0048] 3. In the utility model, the connecting plate separates the first steel plate from the second steel plate, and separates the third steel plate from the fourth steel plate, to form a plurality of pattern block areas. The pattern block areas have a large span, and different pattern blocks have different tendencies, which are beneficial to longitudinal control and lateral anti-skid, and improve the straight-line driving stability of the vehicle.

[0049] 4. The design of the two diagonal blocks in the utility model improves the drainage and snow removal capabilities on the first hand, and the stone removal capabilities on the second hand. On the third hand, due to the different trends of the inclined sections on both sides and the steel sheets, the friction between the tread and the ground is increased, thereby enhancing the traction and lateral force of the tire. BRIEF DESCRIPTION OF THE DRAWINGS

[0050] Figure 1 Schematic diagram of the tread pattern structure in Example 1.

[0051] Figure 2 Schematic diagram of a single pitch of the tread pattern structure in Example 1.

[0052] Numbers in the figure:

[0053] 1-first longitudinal groove, 101-first protrusion, 2-second longitudinal groove, 201-second protrusion, 3-transverse pattern part, 301-first steel sheet, 302-second steel sheet, 303-third steel sheet, 304-fourth steel sheet, 305-connecting sheet, 306-second connecting piece, 307-first pattern block, 308-first diagonal block, 308-second pattern block, 309-second diagonal block, 4-exhaust hole. DETAILED DESCRIPTION

[0054] The present invention is described in detail below in conjunction with the accompanying drawings and specific embodiments. This embodiment is implemented based on the technical solution of the present invention, and provides a detailed implementation method and a specific operation process, but the protection scope of the present invention is not limited to the following embodiments.

[0055] Features such as component models, material names, connection structures, control methods, etc. that are not clearly stated in this technical solution shall be deemed as common technical features disclosed in the prior art.

[0056] In the description of the present invention, it should be understood that the terms "upper", "lower", "vertical", "horizontal", "top", "bottom", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying 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 orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0057] In the description of the present invention, "multiple" means two or more than two, unless otherwise specifically defined. In addition, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a bolt connection or a welding connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication 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.

[0058] Tubeless tires have high requirements for road driving. Common tire quality defects are shoulder hollow, crown hollow and poor wear resistance. Therefore, the tire has high requirements for the pattern and should have good wear resistance and novel appearance. However, straight groove patterns, transverse groove patterns, longitudinal and transverse groove patterns, and block patterns cannot have good guiding, drainage, grip, puncture resistance and side slip resistance at the same time, and the traction or lateral force of the tire is not high. Based on this, the first aspect of the utility model provides a tread pattern structure of an all-steel load-bearing tubeless radial tire. Please refer to the structure of Figure 1 and Figure 2 As shown, including:

[0059] A first longitudinal groove 1 is arranged at the center of the crown and distributed along the circumference of the tire tread, wherein the bottom surface of the first longitudinal groove 1 in the form of a circular arc transition extends radially outward to the tread surface to form a groove with a gradually increasing width;

[0060] Second longitudinal grooves 2 are evenly arranged on both sides of the first longitudinal grooves 1 and distributed along the circumferential direction of the tire tread, and the bottom surfaces of the second longitudinal grooves 2 are arc-shaped and extend radially outward to the tread surface to form grooves with gradually increasing width;

[0061] And a transverse pattern portion 3 extending from the outer wall of the first longitudinal groove 1 to the outer wall of the second longitudinal groove 2 and distributed along the circumference of the tire tread for improving driving performance. The design of the three longitudinal grooves makes the tire have a long wear life and excellent tire body durability. They are all deep pattern designs, while improving the wear resistance of the tire body.

[0062] In some specific implementations, please refer to Figure 1 As shown, the transverse pattern portion 3 includes:

[0063] A plurality of first steel sheets 301 and a plurality of second steel sheets 302 extending from the second longitudinal groove 2 to the first longitudinal groove 1 and arranged alternately along the circumferential direction of the tire tread, wherein the first steel sheets 301 are arranged in a zigzag pattern and have only one bend located at the center, and the second steel sheets 302 are arranged in a zigzag pattern and have several bends located thereat;

[0064] And a plurality of third steel sheets 303 and a plurality of fourth steel sheets 304 extending from the second longitudinal groove 2 to the first longitudinal groove 1 and alternately arranged along the circumferential direction of the tire tread, the third steel sheet 303 is zigzag distributed and has only one bending point which is arranged at the center, the fourth steel sheet 304 is zigzag distributed and has several bending points, the first steel sheet 301 and the third steel sheet 303 have opposite bending trends, the second steel sheet 302 and the fourth steel sheet 304 have opposite bending trends, and the bending trends on both sides are opposite, forming an asymmetric pattern, making the tread rigidity cross, and the left and right shapes resemble a "self-locking" function, thereby improving the straight-line driving stability of the vehicle on various road surfaces, with excellent drainage and snow removal performance, enhancing the stability of driving on harsh ground, such as snowy and watery ground, and taking into account the driving function on normal roads.

[0065] For more specific implementations, please refer to Figure 1 As shown, the transverse pattern portion 3 also includes a connecting piece 305 arranged at the center of the first steel sheet 301 and the second steel sheet 302, and at the center of the third steel sheet 307 and the fourth steel sheet 308. The connecting piece 305 separates the first steel sheet 301 and the second steel sheet 302, and separates the third steel sheet 307 and the fourth steel sheet 308, forming a plurality of pattern block areas. The pattern block area has a large span, and different pattern blocks have different tendencies, which is beneficial to longitudinal control and lateral anti-skid, and improves the straight-line driving stability of the vehicle.

[0066] For more specific implementations, please refer to Figure 1 As shown, the first pattern block 306 and the first diagonal block 307 are alternately formed between the first steel sheet 301 and the second steel sheet 302, and the second pattern block 308 or the second diagonal block 309 is alternately formed between the third steel sheet 303 and the fourth steel sheet 304. The width of the first pattern block 306 is greater than that of the first diagonal block 307, and the width of the second pattern block 308 is greater than that of the second diagonal block 309.

[0067] The first diagonal block 307 has a plurality of first inclined sections extending from the first steel sheet 301 to the second steel sheet 302, and a groove is formed between two adjacent first inclined sections;

[0068] The second twill block 309 has a plurality of second inclined sections extending from the third steel sheet 303 to the fourth steel sheet 304, and a groove is formed between two adjacent second inclined sections. The design of the two twill blocks improves the drainage and snow removal capabilities on the first hand, and the stone removal capabilities on the second hand. On the third hand, due to the different trends of the inclined sections on both sides and the steel sheets, the friction between the tread and the ground is increased, thereby enhancing the traction and lateral force of the tire.

[0069] In some specific implementations, please refer to Figure 1As shown, a plurality of first protrusions 101 are distributed in the middle of the first longitudinal groove 1. The design of the first protrusions 101 improves the stone and water removal performance of the tire.

[0070] In some specific implementations, please refer to Figure 1 As shown, a plurality of second protrusions 201 are distributed in the middle of the second longitudinal groove 2. The design of the second protrusions 201 improves the stone removal and water discharge performance of the tire.

[0071] In some specific implementations, please refer to Figure 1 As shown, the width of the second longitudinal groove 2 is at least greater than the width of the first longitudinal groove 1. The setting of the groove width enables the tire to reasonably distribute the ground contact stress, thereby improving the tread rigidity and the ground contact area.

[0072] In some specific implementations, please refer to Figure 1 As shown, a plurality of vent holes 4 are distributed on the first longitudinal groove 1, the second longitudinal groove 2, and the transverse pattern portion 3 to facilitate exhaust during vulcanization, prevent air pockets from causing rounded corners of the pattern and lack of rubber on the sidewall, promote rubber flow, and make the rubber vulcanization more uniform.

[0073] In some specific implementations, please refer to Figure 1 As shown, the two walls of the first longitudinal groove 1 are zigzag straight lines along the circumference of the tire tread, and the lengths of the two adjacent straight lines are equal. The two walls of the second longitudinal groove 2 are zigzag straight lines along the circumference of the tire tread, and the lengths of the two adjacent straight lines are different, and the lengths of the two straight lines arranged at intervals are equal. The zigzag grooves make the groove angles change continuously, thereby improving the traction and lateral force of the tire.

[0074] A second aspect of the utility model provides a tire, comprising:

[0075] tire carcass; and

[0076] The invention discloses a tread pattern structure of an all-steel load-bearing tubeless radial tire arranged on the tread of the tire carcass and as described above.

[0077] The above embodiments may be implemented individually or in any combination of two or more.

[0078] The above implementation is described in more detail below in conjunction with specific examples.

[0079] Example 1

[0080] Tubeless tires have high requirements for road driving. Common tire quality defects are hollow shoulders, hollow crowns and poor wear resistance. Therefore, the tire has high requirements for the pattern and should have good wear resistance and novel appearance. However, straight groove patterns, transverse groove patterns, longitudinal and transverse groove patterns, and block patterns cannot have good guiding, drainage, grip, puncture resistance and side slip resistance at the same time, and the traction or lateral force of the tire is not high. Based on this, this embodiment provides a tread pattern structure of an all-steel load-bearing tubeless radial tire. Please refer to the structure of Figure 1 and Figure 2 As shown, it includes a first longitudinal groove 1, a second longitudinal groove 2, and a transverse pattern portion 3, wherein the first longitudinal groove 1 is arranged at the center of the crown and distributed along the circumference of the tire tread, and the bottom surface of the first longitudinal groove 1 with a circular arc transition extends radially outward to the tread surface to form a groove with a gradually increasing width; the second longitudinal grooves 2 are evenly arranged on both sides of the first longitudinal groove 1 and distributed along the circumference of the tire tread, and the bottom surface of the second longitudinal groove 2 with a circular arc transition extends radially outward to the tread surface to form a groove with a gradually increasing width; the transverse pattern portion 3 is between the first longitudinal groove 1 and the second longitudinal groove 2, and a plurality of first protrusions 101 are distributed in the middle of the first longitudinal groove 1, and the design of the first protrusions 101 improves the stone removal and water drainage performance of the tire, and a plurality of second protrusions 201 are distributed in the middle of the second longitudinal groove 2, and the design of the second protrusions 201 improves the stone removal and water drainage performance of the tire. The width of the second longitudinal groove 2 is at least greater than the width of the first longitudinal groove 1. The setting of the groove width enables the tire to reasonably distribute the ground stress, improve the tread rigidity and ground contact area. A number of exhaust holes 4 are distributed on the first longitudinal groove 1, the second longitudinal groove 2, and the transverse pattern portion 3, which are convenient for exhausting during vulcanization, preventing air pockets from causing rounded corners of the pattern and lack of rubber on the sidewall, promoting the flow of rubber, and making the rubber vulcanization more uniform. The two walls of the first longitudinal groove 1 are zigzag straight lines along the circumference of the tire tread, and the lengths of the two adjacent straight lines are equal. The two walls of the second longitudinal groove 2 are zigzag straight lines along the circumference of the tire tread, and the lengths of the two adjacent straight lines are different, and the lengths of the two straight lines arranged at intervals are equal. The zigzag grooves make the groove angles change continuously, which improves the traction and lateral force of the tire.

[0081] Specifically, the transverse pattern portion 3 includes a plurality of first steel sheets 301 and a plurality of second steel sheets 302 extending from the second longitudinal groove 2 to the first longitudinal groove 1 and arranged alternately along the circumferential direction of the tire tread, the first steel sheet 301 is distributed in a zigzag manner and has only one bending point and is arranged at the center, the second steel sheet 302 is distributed in a zigzag manner and has a plurality of bending points; and a plurality of third steel sheets 303 and a plurality of fourth steel sheets 304 extending from the second longitudinal groove 2 to the first longitudinal groove 1 and arranged alternately along the circumferential direction of the tire tread, the third steel sheet 303 is distributed in a zigzag manner and has a bending point There is only one fold and it is located in the center; the fourth steel sheet 304 is zigzag distributed and has several folds; the first steel sheet 301 and the third steel sheet 303 have opposite bending trends, the second steel sheet 302 and the fourth steel sheet 304 have opposite bending trends, and the bending trends on both sides are opposite, forming an asymmetric pattern, making the tread rigidity cross, and the left and right shapes are similar to the "self-locking" function, which improves the straight-line driving stability of the vehicle on various road surfaces, has excellent drainage and snow removal performance, enhances the stability of driving on harsh ground, such as snowy and watery ground, and takes into account the driving function on normal roads.

[0082] Specifically, the transverse pattern portion 3 also includes a connecting piece 305 arranged at the center of the first steel sheet 301 and the second steel sheet 302, and at the center of the third steel sheet 307 and the fourth steel sheet 308. The connecting piece 305 separates the first steel sheet 301 and the second steel sheet 302, and separates the third steel sheet 307 and the fourth steel sheet 308, forming a plurality of pattern block areas. The pattern block area has a large span, and different pattern blocks have different tendencies, which is beneficial to longitudinal control and lateral anti-skid, and improves the straight-line driving stability of the vehicle.

[0083] Specifically, the first pattern block 306 and the first twill block 307 are alternately formed between the first steel sheet 301 and the second steel sheet 302, and the second pattern block 308 or the second twill block 309 is alternately formed between the third steel sheet 303 and the fourth steel sheet 304. The width of the first pattern block 306 is greater than that of the first twill block 307, and the width of the second pattern block 308 is greater than that of the second twill block 309. The first twill block 307 has a plurality of first inclined sections extending from the first steel sheet 301 to the second steel sheet 302, and a groove is formed between two adjacent first inclined sections. The second twill block 309 has a plurality of second inclined sections extending from the third steel sheet 303 to the fourth steel sheet 304, and a groove is formed between two adjacent second inclined sections. The design of the two twill blocks improves the drainage and snow removal capabilities on the first hand, and the stone removal capabilities on the second hand. On the third hand, due to the different trends of the inclined sections on both sides and the steel sheets, the friction between the tread and the ground is increased, thereby enhancing the traction and lateral force of the tire.

[0084] Please see again Figure 2 As shown, Figure 2It is a single-pitch pattern. In this embodiment, the tire tread pattern pitch is 52 sections and the running surface width is 234mm.

[0085] The first longitudinal groove 1 has a width of 13.6 mm and a depth of 20.5 mm. The bottom of the groove is a semicircular arc transition with a radius of 0.6 mm. The first twill decoration 302 and the second twill decoration 304 have a twill height of 0.5 mm and a spacing of 1.08 mm. The first and second convex blocks 201 have a height of 3.5 mm and a width of 3 mm.

[0086] The working principle of this embodiment is as follows:

[0087] The tire with the pattern structure in this embodiment adopts a mixed pattern of straight grooves and folded grooves and a variable design; the rigidity of the shoulder is rationally designed, and the tire has excellent anti-eccentric wear performance; the deep pattern design has a long wear life; and the tire body has excellent durability. The exhaust hole 4 is convenient for exhausting during vulcanization, preventing air pockets from causing rounded corners of the pattern and lack of rubber on the sidewall, promoting the flow of rubber, and making the rubber vulcanization more uniform. The transverse pattern part 3 improves the early grip, and the pattern angles of the first longitudinal pattern groove 1 and the second longitudinal pattern groove 2 are constantly changing, which improves the traction and lateral force of the tire. The bending trends between the first steel sheet 301 and the third steel sheet 303 are opposite, and the bending trends of the second steel sheet 302 and the fourth steel sheet 304 are opposite. The bending trends on both sides are opposite, forming an asymmetric pattern, making the tread rigid cross, and the left and right shapes resemble "self-locking" functions, improving the straight-line driving stability of the vehicle on various roads, and having excellent drainage and snow removal performance, enhancing the stability of driving on harsh ground, such as snowy and watery ground, and taking into account the driving function of normal roads. The connecting piece 305 separates the first steel sheet 301 from the second steel sheet 302, and the third steel sheet 307 from the fourth steel sheet 308, forming a plurality of pattern block areas. The pattern block areas have a large trend span, and different pattern blocks have different trends, which are beneficial to longitudinal control and lateral anti-skid, and improve the straight-line driving stability of the vehicle. The design of the two diagonal blocks firstly improves the drainage and snow removal capabilities, secondly improves the stone removal capabilities, and thirdly, due to the different trends of the inclined sections on both sides and the steel sheets, the friction between the tread and the ground is increased, and the traction and lateral force of the tire are enhanced.

[0088] Example 2

[0089] This embodiment provides a tire, comprising:

[0090] tire carcass; and

[0091] An all-steel load-bearing tubeless radial tire tread pattern structure is provided on the tire carcass tread and is as in Example 1.

[0092] Comparative Example 1

[0093] Compared with the embodiment 1, most of them are the same, except that the bending trends of the second steel sheet 302 and the fourth steel sheet 304 are the same.

[0094] The rolling resistance and grip of Example 1 and Comparative Example 1 were tested using ECE R117, and the test results are as follows:

[0095] performance Example 1 Comparative Example 1 Rolling resistance N / KN 5.939 6.124 Wet road grip performance index G 1.13 1.06

[0096] It can be seen from the above table that after adopting the asymmetric design, the rolling resistance of the tire using the tread pattern structure provided in Example 1 is reduced, and the wet road grip performance index is increased.

[0097] The above description of the embodiments is to facilitate the understanding and use of the utility model by those skilled in the art. It is obvious that those familiar with the art can easily make various modifications to these embodiments and apply the general principles described herein to other embodiments without creative work. Therefore, the utility model is not limited to the above embodiments, and improvements and modifications made by those skilled in the art based on the disclosure of the utility model without departing from the scope of the utility model should be within the scope of protection of the utility model.

Claims

1. A tread pattern structure of an all-steel load-bearing tubeless radial tire, It is characterized in that include: A first longitudinal groove (1) is arranged at the center of the tread crown and distributed along the circumference of the tire tread, wherein the bottom surface of the first longitudinal groove (1) is in the form of an arc transition and extends radially outward to the tread surface to form a groove with a gradually increasing width; Second longitudinal grooves (2) are evenly arranged on both sides of the first longitudinal grooves (1) and distributed along the circumference of the tire tread, and the bottom surfaces of the second longitudinal grooves (2) are arc-shaped and extend radially outward to the tread surface to form grooves with gradually increasing widths; And a transverse pattern portion (3) extending from the outer wall of the first longitudinal groove (1) to the outer wall of the second longitudinal groove (2) and distributed along the circumference of the tire tread for improving driving performance.

2. The tread pattern structure of the all-steel load-carrying tubeless radial tire according to claim 1, It is characterized in that The transverse pattern portion (3) comprises: A plurality of first steel sheets (301) and a plurality of second steel sheets (302) extending from the second longitudinal groove (2) to the first longitudinal groove (1) and arranged alternately along the circumferential direction of the tire tread, wherein the first steel sheets (301) are arranged in a zigzag pattern and have only one bend located at the center, and the second steel sheets (302) are arranged in a zigzag pattern and have a plurality of bends; and a plurality of third steel sheets (303) and a plurality of fourth steel sheets (304) extending from the second longitudinal groove (2) to the first longitudinal groove (1) and alternately arranged along the circumferential direction of the tire tread, wherein the third steel sheets (303) are distributed in a zigzag pattern and have only one bending point which is arranged at the center, and the fourth steel sheets (304) are distributed in a zigzag pattern and have a plurality of bending points, the first steel sheet (301) and the third steel sheet (303) have opposite bending trends, and the second steel sheet (302) and the fourth steel sheet (304) have opposite bending trends.

3. The tread pattern structure of the all-steel load-carrying tubeless radial tire according to claim 2, It is characterized in that The transverse pattern portion (3) further comprises connecting pieces (305) arranged at the centres of the first steel sheet (301) and the second steel sheet (302), and at the centres of the third steel sheet (303) and the fourth steel sheet (304).

4. The tread pattern structure of the all-steel load-carrying tubeless radial tire according to claim 3, It is characterized in that The first pattern block (306) and the first diagonal block (307) are alternately formed between the first steel sheet (301) and the second steel sheet (302); the second pattern block (308) or the second diagonal block (309) is alternately formed between the third steel sheet (303) and the fourth steel sheet (304); the width of the first pattern block (306) is greater than that of the first diagonal block (307); and the width of the second pattern block (308) is greater than that of the second diagonal block (309); The first oblique block (307) has a plurality of first inclined sections extending from the first steel sheet (301) to the second steel sheet (302), and a groove is formed between two adjacent first inclined sections; The second oblique block (309) has a plurality of second inclined sections extending from the third steel sheet (303) to the fourth steel sheet (304), and a groove is formed between two adjacent second inclined sections.

5. The tread pattern structure of the all-steel load-carrying tubeless radial tire according to claim 1, It is characterized in that A plurality of first protrusions (101) are distributed in the groove of the first longitudinal groove (1).

6. The tread pattern structure of the all-steel load-carrying tubeless radial tire according to claim 1, It is characterized in that A plurality of second protrusions (201) are distributed in the groove of the second longitudinal groove (2).

7. The tread pattern structure of the all-steel load-carrying tubeless radial tire according to claim 1, It is characterized in that The width of the second longitudinal groove (2) is at least greater than the width of the first longitudinal groove (1).

8. The tread pattern structure of the all-steel load-bearing tubeless radial tire according to claim 1, It is characterized in that A plurality of exhaust holes (4) are distributed on the first longitudinal groove (1), the second longitudinal groove (2), and the transverse pattern portion (3).

9. The tread pattern structure of the all-steel load-carrying tubeless radial tire according to claim 1, It is characterized in that The two walls of the first longitudinal groove (1) are in a zigzag straight line shape along the circumferential direction of the tire tread, and the lengths of two adjacent straight lines are equal; the two walls of the second longitudinal groove (2) are in a zigzag straight line shape along the circumferential direction of the tire tread, and the lengths of two adjacent straight lines are different, and the lengths of two straight lines arranged at intervals are equal.

10. A tire, It is characterized in that include: Tire carcass; and A tread pattern structure of an all-steel load-bearing tubeless radial tire arranged on the tread of a tire carcass and as described in any one of claims 1-9.

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