Truck radial tire pattern and tire
By designing the tread pattern for heavy-duty radial tires and employing structures such as longitudinal tread grooves, bosses, unequal width tread grooves, and steel plate grooves, the rolling resistance and durability issues of express delivery tires under heavy load conditions have been solved, achieving low fuel consumption and high durability, and improving transportation efficiency and safety.
Patent Information
- Application Number
- CN202520591086.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-31
- Publication Date
- 2026-02-06
- Estimated Expiration
- 2035-03-31
AI Technical Summary
Existing express delivery tires are difficult to control rolling resistance effectively under heavy load conditions, and their durability cannot meet the needs of high-intensity transportation, resulting in increased fuel consumption and shortened service life.
Design a tread pattern for a heavy-duty radial tire, including longitudinal tread grooves extending circumferentially along the tread surface, continuous zigzag protrusions at the bottom of the grooves, longitudinal tread grooves of varying widths and multiple tread blocks, steel strip grooves on the edge tread blocks, and under-shoulder grooves at the tire shoulder, to optimize the tread structure to reduce rolling resistance and improve durability and grip performance.
It achieves low rolling resistance and high durability, reduces fuel consumption, improves driving stability and safety, and extends tire life.
Smart Images
Figure CN223877809U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to tire technical field especially relates to a heavy load radial tire pattern and tire. BACKGROUND
[0002] With the rapid development of e-commerce industry in China, express logistics transportation industry also gets rapid development. Express transportation vehicle because its loading weight is bigger, the mileage is long and the characteristics of frequently start and stop, the performance of the matching tire is higher demand. Express transportation vehicle mainly drives on highway and city road and other good road conditions, fuel economy becomes the important index of measuring express transportation cost, and the performance of the tire has important influence on fuel economy.
[0003] However, the following problems exist in the actual use of ordinary tires, which will affect the express logistics transportation cost: on the one hand, it is difficult to effectively control the rolling resistance under continuous heavy load working condition, which leads to the increase of fuel consumption; on the other hand, the durability of the existing tire product cannot meet the high strength transportation demand, which shortens the service life of the tire. Therefore, providing a tire with low rolling resistance and high durability to meet the use requirements of express vehicles and reduce transportation fuel consumption is a problem that those skilled in the art need to solve. SUMMARY
[0004] The details of one or more embodiments of the utility model are presented in the following drawings and description, so that other features, objects and advantages of the application are more concise and easy to understand.
[0005] The utility model discloses a heavy load radial tire pattern and tire, solve the existing express transportation tire under continuous heavy load working condition difficult to effectively control the rolling resistance and the durability cannot meet the high strength transportation demand's technical problem, with the characteristics of low rolling resistance and high durability, adapt to the use requirement of express vehicle, reduce transportation fuel consumption.
[0006] The utility model discloses a heavy load radial tire pattern, including the multiple longitudinal pattern grooves who sets up along the circumferential extension of the tread, the single side groove bottom angle of longitudinal pattern groove is 10-20 DEG, and the groove bottom of longitudinal pattern groove sets up continuous zigzag boss, the adjacent protrusion of zigzag boss is transitioned through the angle of 10-40 DEG of the inclined connecting section with the extension direction of longitudinal pattern groove.
[0007] In some embodiments, the height of the boss is 2-5mm, and the distance between the two side edges of the boss and the adjacent longitudinal pattern groove wall is 2-3mm.
[0008] In some embodiments, the longitudinal grooves include middle longitudinal grooves located on both sides of the center line of the tread and edge longitudinal grooves located between the middle longitudinal grooves and the edges of the tread, wherein the width of the middle longitudinal grooves is less than the width of the edge longitudinal grooves.
[0009] In some embodiments, a plurality of blocks are further included and are divided by the longitudinal grooves, the blocks include a middle block located on the center line of the tread, edge blocks located on both sides of the middle block, and shoulder blocks located on both shoulders, wherein the axial width of the edge blocks satisfies: the width of the middle block < the width of the edge block < the width of the shoulder block.
[0010] In some embodiments, the ratio of the width of the edge block to the width of the shoulder block is 1:(1.15-1.35).
[0011] In some embodiments, a plurality of edge steel groove slots are arranged on the edge block in intervals, and both ends of the edge steel groove slot are connected with the adjacent longitudinal grooves.
[0012] In some embodiments, the edge steel groove slot includes a first edge steel groove slot, a second edge steel groove slot, a third edge steel groove slot, a fourth edge steel groove slot, and a fifth edge steel groove slot connected in sequence, wherein the second edge steel groove slot and the fourth edge steel groove slot are both arc structures, the first edge steel groove slot is a straight line structure tangent to the second edge steel groove slot, the third edge steel groove slot is a straight line structure with both ends tangent to the second edge steel groove slot and the fourth edge steel groove slot, and the fifth edge steel groove slot is a straight line structure tangent to the fourth edge steel groove slot.
[0013] In some embodiments, a plurality of middle steel groove slot groups are arranged on the middle block in intervals, each middle steel groove slot group includes a first middle steel groove slot and a second middle steel groove slot arranged on both edges of the middle block.
[0014] In some embodiments, a plurality of under-shoulder grooves are arranged on both shoulders in intervals, and the depth of the under-shoulder grooves is 2-3mm.
[0015] The utility model discloses a kind of tire, and the tire tread includes any one of the above heavy radial tire pattern.
[0016] Compared with the prior art, the utility model has the beneficial effects that:
[0017] (1) The utility model discloses a heavy truck radial tire pattern, a plurality of longitudinal grooves are arranged along the circumferential direction of the tread, the rolling resistance of the tire is reduced by reducing the variation of the main groove, the tire has good drainage performance, the phenomenon of pattern collapse and block falling during driving is reduced, and driving stability is improved.
[0018] (2) The utility model discloses a heavy truck radial tire pattern, the central longitudinal groove and the edge longitudinal groove adopt unequal width design, which is beneficial to the stability of the edge pattern.
[0019] (3) The utility model discloses a heavy truck radial tire pattern, the pattern blocks adopt different width design, which can effectively enhance the structural strength of the edge area of the tread, suppress the deformation of the groove under the inflated state of the tire, and optimize the inflated profile and ground pressure distribution characteristics of the tire.
[0020] (4) The utility model discloses a heavy truck radial tire pattern, a plurality of edge steel groove slots are arranged on the edge pattern blocks, the liquid film layer of the accumulated water road surface is actively cut during driving, the water flow in the contact area can be quickly drained, and the wet braking efficiency and driving safety of the tire are effectively improved.
[0021] (5) The utility model discloses a plurality of shoulder recesses arranged at both sides of the shoulder, which can improve the vulcanization efficiency of the shoulder part, increase the heat dissipation performance of the shoulder part, and reduce the risk of tire shoulder emptying. DRAWINGS
[0022] The drawings described herein are used to provide further understanding of the utility model and constitute a part of the utility model. The illustrative embodiments of the utility model and the description thereof are used to explain the utility model and do not constitute improper limitation on the utility model. Among them:
[0023] Figure 1 The structure schematic view of the heavy truck radial tire pattern provided by the utility model embodiment is shown in the figure.
[0024] Figure 2 The structure schematic view of the edge steel groove slot of the utility model embodiment is shown in the figure.
[0025] In the drawings: 1, central longitudinal groove; 2, edge longitudinal groove; 3, central pattern block; 4, edge pattern block; 5, shoulder pattern block; 6, boss; 7, edge steel groove slot, 71, first edge steel groove slot, 72, second edge steel groove slot, 73, third edge steel groove slot, 74, fourth edge steel groove slot, 75, fifth edge steel groove slot; 81, first central steel groove slot, 82, second central steel groove slot; 9, shoulder recess;
[0026] a: width of the middle block;
[0027] b: width of the side block;
[0028] c: width of the shoulder block;
[0029] d: width of the middle longitudinal groove;
[0030] e: width of the side longitudinal groove. DETAILED DESCRIPTION
[0031] In order to make the purpose, technical scheme and advantages of the present application clearer, the technical scheme in the embodiments will be described clearly and completely in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the present application.
[0032] In the description of the present application, it should be understood that the terms "center", "transverse", "longitudinal", "upper", "lower", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. The terms "first", "second", "third" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first", "second", "third" can explicitly or implicitly include one or more of the features. The term "longitudinal" refers to the direction of tire rolling; the term "transverse" refers to the direction perpendicular to the tire surface.
[0033] The present application provides a kind of load radial tire pattern and tire suitable for express delivery vehicle, with low rolling resistance and high durability, can adapt to the use requirement of express delivery vehicle, reduce transportation fuel consumption. Figure 1 It is the structural schematic view of the load radial tire pattern according to the present application embodiment. Reference Figure 1The load radial tire pattern shown comprises a plurality of longitudinal grooves arranged along the circumferential direction of the tread, the longitudinal grooves are linear grooves, the tire rolling resistance is reduced by reducing the main groove variation, the tire has good drainage performance, and also has good handling performance when driving on wet and slippery road surfaces. The single-sided groove bottom angle of the longitudinal groove is 10°-20°, the groove bottom of the longitudinal groove of the utility model is a fixed angle smooth transition, and is symmetrical on both sides, the drainage performance is increased, the noise is reduced, the tread unit stiffness modulus is improved, the phenomenon of blooming and block falling during driving is reduced, and the driving stability is improved. The groove bottom of the longitudinal groove is provided with a continuous broken line-shaped boss 6, the extension direction of the boss 6 is the same as the extension direction of the longitudinal groove. The height of the boss 6 is 2-5mm, and the distance between the two side edges of the boss 6 and the adjacent longitudinal groove groove wall is 2-3mm. By arranging the periodic distribution of the boss structure on the groove bottom of the longitudinal groove, the phenomenon of the tire pinching the stone can be effectively reduced, and the damage of the sharp stone to the groove bottom is reduced. The adjacent protrusions of the broken line-shaped boss 6 are transitioned through the inclined connecting section, and the included angle between the inclined connecting section and the extension direction of the longitudinal groove is 10-40°. The utility model utilizes the inclined surface of the boss structure to guide and accelerate the removal of foreign matters in the groove bottom, reduces the damage rate of the groove bottom, maintains the effective depth of the groove in the gravel road surface test, and prolongs the service life of the tire.
[0034] The longitudinal groove of the utility model comprises a middle longitudinal groove 1 located on both sides of the center line of the tread and a side longitudinal groove 2 located between the middle longitudinal groove 1 and the edge of the tread, and the two middle longitudinal grooves 1 and the two side longitudinal grooves 2 are respectively symmetrical about the center line of the tread, wherein the width of the middle longitudinal groove 1 is less than the width of the side longitudinal groove 2. The utility model optimizes the structure of the longitudinal groove, balances the ground print pressure distribution, and reduces the rolling resistance coefficient. The symmetrical four-channel layout synchronously enhances the lateral stiffness modulus of the tread, obviously improves the lateral force deflection response while maintaining the straight tracking accuracy, and achieves the double breakthrough of control stability and energy consumption economy. The middle longitudinal groove 1 and the side longitudinal groove 2 adopt unequal width design, which is beneficial to the stability of the pattern edge, wherein the width d of the middle longitudinal groove is 10-15mm, and the width e of the side longitudinal groove is 11-16mm.
[0035] The utility model discloses a heavy radial tire pattern still includes a plurality of blocks of patterns divided by longitudinal pattern grooves, and the blocks of patterns include a middle block of pattern 3 located at a center line of the tread, edge blocks of pattern 4 located at both sides of the middle block of pattern 3, and shoulder blocks of pattern 5 located between the edge blocks of pattern 4 and edges of the tread.
[0036] The width ratio of the edge blocks of pattern 4 to the shoulder blocks of pattern 5 is 1: (1.15-1.35), and the shoulder is widened to strengthen the mechanical design of the shoulder structure, effectively inhibit the asymmetric wear of the tread caused by stress concentration during dynamic steering, reduce the occurrence rate of eccentric wear, improve the durability of the carcass, and enhance the lateral grip stability.
[0037] To enhance the grip performance on a wet and slippery road surface, a plurality of edge steel groove 7 are arranged on the edge blocks of pattern 4, and the two ends of the edge steel groove 7 are respectively connected with adjacent longitudinal pattern grooves. The edge steel groove 7 includes a first edge steel groove 71, a second edge steel groove 72, a third edge steel groove 73, a fourth edge steel groove 74 and a fifth edge steel groove 75 connected in sequence, wherein the second edge steel groove 72 and the fourth edge steel groove 74 are both arc structures, and the arc radius of the second edge steel groove 72 and the fourth edge steel groove 74 is 5-10mm, the first edge steel groove 71 is a straight line structure tangent to the second edge steel groove 72, the third edge steel groove 73 is a straight line structure with the two ends tangent to the second edge steel groove 72 and the fourth edge steel groove 74, and the fifth edge steel groove 75 is a straight line structure tangent to the fourth edge steel groove 74. During the driving of the tire, the edge steel groove 7 actively cuts the liquid film layer of the water surface of the road surface, can realize the rapid drainage of the water flow in the contact area, and thus effectively improves the wet braking efficiency and driving safety of the tire.
[0038] A plurality of middle steel groove groups are arranged on the middle block of pattern 3, and each middle steel groove group includes a first middle steel groove 81 and a second middle steel groove 82 arranged at both edges of the middle block of pattern 3, and the first middle steel groove 81 and the fifth edge steel groove 75 are on the same straight line.
[0039] The utility model discloses a plurality of shoulder under grooves 9 are arranged at the both sides shoulder position, and the depth of shoulder under groove 9 is 2-3mm, which can improve the vulcanization efficiency of the shoulder position, increase the heat dissipation performance of the shoulder position and reduce the risk of tire shoulder empty.
[0040] The above examples are only used to illustrate the technical solutions of the utility model and not to limit them; although the utility model has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the specific embodiments of the utility model can be modified or some technical features can be replaced equivalently; without departing from the spirit of the technical solutions of the utility model, all of them should be covered in the technical solution range of the utility model claimed.
Claims
1. A heavy truck radial tire pattern, characterized in that: The tread comprises a plurality of longitudinal grooves extending along the circumferential direction of the tread, the single-side groove bottom angle of the longitudinal grooves is 10-20°, and the groove bottom of the longitudinal grooves is provided with a continuous zigzag-shaped boss, the adjacent protrusions of the zigzag-shaped boss are connected by an inclined connecting section, and the included angle between the inclined connecting section and the extension direction of the longitudinal groove is 10-40°.
2. The truck radial tire pattern of claim 1 wherein: The height of the boss is 2-5mm, and the distance between the two side edges of the boss and the adjacent groove wall of the longitudinal groove is 2-3mm.
3. The truck radial tire pattern of claim 1 wherein: The longitudinal grooves comprise middle longitudinal grooves located on both sides of the center line of the tread and edge longitudinal grooves located between the middle longitudinal grooves and the edges of the tread, wherein the width of the middle longitudinal grooves is less than the width of the edge longitudinal grooves.
4. The load radial tire pattern of claim 1 wherein: A plurality of blocks are also divided by the longitudinal grooves, the blocks comprise middle blocks located on the center line of the tread, edge blocks located on both sides of the middle blocks, and shoulder blocks located on both shoulders, wherein the axial width of the edge blocks satisfies: the width of the middle blocks < the width of the edge blocks < the width of the shoulder blocks.
5. The truck radial tire pattern of claim 4 wherein: The ratio of the width of the edge blocks to the width of the shoulder blocks is 1:(1.15-1.35).
6. The truck radial tire pattern of claim 4 wherein: A plurality of edge steel groove slots are arranged on the edge blocks in intervals, and the two ends of the edge steel groove slots are respectively connected with the adjacent longitudinal grooves.
7. The truck radial tire pattern of claim 6 wherein: The edge steel groove slots comprise a first edge steel groove slot, a second edge steel groove slot, a third edge steel groove slot, a fourth edge steel groove slot and a fifth edge steel groove slot connected in sequence, wherein the second edge steel groove slot and the fourth edge steel groove slot are both circular arc structures, the first edge steel groove slot is a straight line structure tangent to the second edge steel groove slot, the third edge steel groove slot is a straight line structure tangent to the second edge steel groove slot and the fourth edge steel groove slot at both ends, and the fifth edge steel groove slot is a straight line structure tangent to the fourth edge steel groove slot.
8. The truck radial tire pattern of claim 4 wherein: A plurality of middle steel groove slot groups are arranged on the middle blocks in intervals, each middle steel groove slot group comprises a first middle steel groove slot and a second middle steel groove slot arranged on the two edges of the middle block, respectively.
9. The load radial tire pattern of claim 1 wherein: A plurality of under-shoulder grooves are arranged on both shoulders in intervals, and the depth of the under-shoulder grooves is 2-3mm.
10. A tire characterized by: The tread of the tire comprises the tread pattern of the truck and bus radial tire according to any one of claims 1-9.