Truck tire pattern and tire
Patent Information
- Application Number
- CN202522286109.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-10-29
- Publication Date
- 2026-10-09
- Estimated Expiration
- 2035-10-29
AI Technical Summary
[0005]本实用新型提出一种载重汽车轮胎花纹及轮胎，解决了现有载重汽车轮胎花纹设计难以兼顾耐磨性和湿抓性能，导致轮胎在使用过程中出现异常磨损、湿滑路面制动性能不足等的技术问题，具有提升轮胎的整体耐磨性能和湿地性能的特点
（1）本实用新型载重汽车轮胎花纹通过设置四条宽度不同的纵向主沟，使轮胎具有优异的排水性能和良好的湿抓性能，提高了轮胎实际使用过程中的安全性；在边部纵向主沟的沟底设计低于轮胎行驶面高度的耦合凸起，能够降低纵向主沟磨损现象的发生，使轮胎的磨损更加均匀，减少因局部磨损过快而导致的轮胎寿命缩短问题，延长轮胎的使用寿命。
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Figure CN224828328U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of tire technology, and in particular relates to a tire tread pattern and tire for heavy-duty trucks. Background Technology
[0002] As a crucial component of vehicles, tires directly impact driving performance, operating costs, and transportation safety. In recent years, with the rapid development of the logistics and transportation industry, higher demands have been placed on the performance of long-haul tires for heavy-duty trucks. High wear resistance, high mileage, and high safety performance have become core requirements for the commercial vehicle industry.
[0003] However, existing truck tire tread designs often struggle to balance wear resistance and wet grip, leading to abnormal tire wear and insufficient braking performance on wet roads. Therefore, there is an urgent need for a new type of truck tire tread design that balances wear resistance and wet grip. Utility Model Content
[0004] Details of one or more embodiments of the present invention are set forth in the following drawings and description to make other features, objects and advantages of the present application more readily apparent.
[0005] This utility model proposes a tire tread pattern and tire for heavy-duty trucks, which solves the technical problem that the existing tire tread pattern design for heavy-duty trucks is difficult to balance wear resistance and wet grip performance, resulting in abnormal wear and insufficient braking performance on wet and slippery roads during use. It has the characteristics of improving the overall wear resistance and wet performance of the tire.
[0006] This utility model discloses a tire tread pattern for heavy-duty trucks, including multiple longitudinal main grooves extending longitudinally along the tire tread. The longitudinal main grooves include a central longitudinal main groove located on both sides of the tire crown centerline and a side longitudinal main groove located between the central longitudinal main groove and the edge of the tread. The width of the side longitudinal main groove is greater than the width of the central longitudinal main groove, and a coupling protrusion extending circumferentially along the tread is provided on the side of the bottom of the side longitudinal main groove near the tire crown centerline. The height of the top of the coupling protrusion from the tire running surface is 1.5mm-3mm.
[0007] In some embodiments, the longitudinal main groove divides the tire tread into multiple tread ribs, including shoulder tread ribs located on both sides of the tire shoulders, central tread ribs located at the center line of the tire crown, and edge tread ribs located between the shoulder tread ribs and the central tread ribs. The width ratio of the shoulder tread ribs to the central tread ribs is 1.7-1.85:1, and the width of the edge tread ribs is equal to the width of the central tread ribs.
[0008] In some embodiments, a circumferential steel strip extending circumferentially along the tread is provided on the central tread rib, and the width of the circumferential steel strip is 0.8mm-1.2mm.
[0009] In some embodiments, multiple V-shaped steel sheets are staggered on both sides of the circumferential steel sheet of the central patterned rib. One end of the V-shaped steel sheet is connected to the circumferential steel sheet, and the other end of the V-shaped steel sheet is connected to the adjacent longitudinal main groove.
[0010] In some embodiments, the V-shaped steel sheet and the circumferential steel sheet divide the central patterned rib into multiple independent central patterned blocks, and knurled lines are alternately arranged on the central patterned blocks located on the same side of the circumferential steel sheet.
[0011] In some embodiments, the edge patterned ribs and the shoulder patterned ribs near the longitudinal main groove are provided with multiple transverse fine grooves at intervals.
[0012] In some embodiments, multiple Z-shaped transverse grooves are spaced apart on the edge patterned ribs, and the two ends of the Z-shaped transverse grooves are respectively connected to the adjacent longitudinal main grooves.
[0013] In some embodiments, a circumferential heat dissipation groove is provided on the side of the shoulder tread rib away from the center line of the tire crown. The depth of the circumferential heat dissipation groove is equal to the depth of the longitudinal main groove. The height of the upper end of the groove wall on the side of the circumferential heat dissipation groove away from the center line of the tire crown to the tire running surface is 1mm-3mm.
[0014] In some embodiments, the bottom of the circumferential heat dissipation groove is provided with a groove with a width of 3mm-6mm, and the groove extends towards the center line of the tire crown.
[0015] In another aspect, this utility model also provides a tire, wherein the tire tread is provided with the tread pattern of the heavy-duty vehicle tire.
[0016] Compared with the prior art, the beneficial effects of this utility model are as follows: (1) The tire pattern of this utility model for heavy-duty trucks has four longitudinal main grooves of different widths, which makes the tire have excellent drainage performance and good wet grip performance, thus improving the safety of the tire in actual use. The bottom of the longitudinal main grooves on the side is designed with coupling protrusions that are lower than the tire surface height, which can reduce the occurrence of longitudinal main groove wear, make the tire wear more uniform, reduce the problem of shortened tire life caused by excessive local wear, and extend the service life of the tire.
[0017] (2) By designing ribs with different widths, this utility model can optimize the tire ground contact shape, ensure that the entire crown of the tire is subjected to more uniform force during high-speed driving, prevent uneven wear and other problems caused by uneven force, and avoid problems such as crown voids and shoulder voids in the early stage of tire use.
[0018] (3) The circumferential steel strips extending along the circumference of the tread are provided on the central tread ribs of this utility model, which can strengthen the longitudinal support of the central tread ribs and enhance the stability of straight driving; multiple V-shaped steel strips are staggered on both sides of the circumferential steel strips of the central tread ribs, which can improve the tire's resistance to deformation and wet grip performance, and fill the gaps in the longitudinal main grooves in terms of grip, resistance to deformation and wear uniformity.
[0019] (4) The edge pattern ribs and shoulder pattern ribs of this utility model have densely distributed fine transverse grooves on the edge of the pattern ribs near the longitudinal main grooves, which can disperse the tread pressure, optimize the tire wear, and improve the tire durability; moreover, the setting of transverse grooves increases the drainage channels of the four straight longitudinal main grooves, making the drainage space of the longitudinal main grooves larger, and when driving on rainy days or waterlogged roads, it can drain the rainwater between the tire and the ground more quickly, effectively reducing the occurrence of hydroplaning and improving the driving safety of the tire on wet and slippery roads.
[0020] (5) The circumferential heat dissipation grooves on the shoulder ribs of this utility model prevent wear on the tire shoulder. At the same time, by actively guiding airflow and optimizing the heat conduction path, the heat dissipation of the tire shoulder area is improved, effectively reducing wear problems such as shoulder gaps, which helps to improve tire durability, overall wear resistance and service life of the tire. Attached Figure Description
[0021] The accompanying drawings, which are included to provide a further understanding of the present invention and constitute a part of this invention, illustrate exemplary embodiments of the present invention and, together with their descriptions, serve to explain the present invention and do not constitute an undue limitation thereof. Wherein: Figure 1 This is a schematic diagram of the structure of the tire tread pattern for a heavy-duty truck provided in an embodiment of the present utility model; Figure 2 This is a schematic diagram of the tire crown structure of a heavy-duty truck provided in an embodiment of the present utility model; In the attached diagram: 1. Longitudinal main groove at the edge; 11. Coupling protrusion; 2. Longitudinal main groove at the center; 3. Patterned rib at the center; 31. Circumferential steel sheet; 32. V-shaped steel sheet; 33. Knurled line; 41. Patterned rib at the inner edge; 42. Patterned rib at the outer edge; 43. Z-shaped transverse groove; 44. Transverse fine groove at the edge; 51. Patterned rib at the inner shoulder; 52. Patterned rib at the outer shoulder; 53. Circumferential heat dissipation groove; 54. Transverse fine groove at the shoulder. Detailed Implementation
[0022] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions in the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.
[0023] In the description of this utility model, it should be understood that the terms "center," "lateral," "longitudinal," "upper," "lower," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. The terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined with "first," "second," and "third" may explicitly or implicitly include one or more of that feature. The term "longitudinal" refers to the direction in which the tire rolls; the term "lateral" refers to the direction perpendicular to the mid-surface of the tire.
[0024] This utility model embodiment provides a tread pattern and tire for heavy-duty trucks, featuring a unidirectional tread design. Figure 1 This is a schematic diagram of the tread pattern of a heavy-duty truck tire according to an embodiment of the present invention. (Reference) Figure 1As shown, the tread pattern of this heavy-duty truck tire includes: multiple longitudinal main grooves extending longitudinally along the tread. These longitudinal main grooves are straight grooves, including a central longitudinal main groove 2 located on both sides of the tire crown centerline and a side longitudinal main groove 1 located between the central longitudinal main groove 2 and the tread edge. The width of the side longitudinal main groove 1 is greater than the width of the central longitudinal main groove 2, and a coupling protrusion 11 extending circumferentially along the tread is provided on the bottom of the side longitudinal main groove 1 near the tire crown centerline. The height h2 from the top of the coupling protrusion 11 to the tire's running surface is 1.5mm-3mm. By adopting a four-groove design, the tire has excellent water drainage performance and good wet grip, improving safety performance during actual use. The design of the coupling protrusion 11 reduces the occurrence of longitudinal main groove wear, making tire wear more uniform and reducing the problem of shortened tire life caused by excessively rapid local wear, thus extending tire service life. In one embodiment of this utility model, the width of the central longitudinal main groove 2 is 10mm-12mm, the groove wall angle of the central longitudinal main groove 2 is 26°-30°, and the width of the side longitudinal main groove 1 is 15.5mm-17.5mm. In a preferred embodiment, the width of the central longitudinal main groove 2 is 11mm, the groove wall angle of the central longitudinal main groove 2 is 28°, the width of the side longitudinal main groove 1 is 16.5mm, and the height from the top of the coupling protrusion 11 to the tire running surface is 2.5mm.
[0025] In this invention, multiple longitudinal main grooves divide the tire tread into multiple tread ribs. These ribs include shoulder ribs located on both sides of the tire shoulders, a central rib 3 located at the center line of the tire crown, and edge ribs located between the shoulder ribs and the central rib 3. The width ratio of the shoulder ribs to the central rib 3 is 1.7-1.85:1; the width of the edge ribs is equal to the width of the central rib 3. Preferably, the width ratio of the shoulder ribs to the central rib 3 is 1.7859:1. This invention, through the design of ribs with varying widths, optimizes the tire's contact patch shape, ensuring more even stress distribution across the entire crown during high-speed driving. This prevents uneven wear and other problems caused by uneven stress, and avoids issues such as crown gaps and shoulder gaps in the early stages of tire use.
[0026] The present invention relates to a tire tread pattern for heavy-duty vehicles, wherein a circumferential steel sheet 31 extending circumferentially along the tread surface is provided at the center of the central tread rib 3, which strengthens the longitudinal support of the central tread rib 3 and enhances the stability of straight-line driving. The width of the circumferential steel sheet 31 is 0.8mm-1.2mm, preferably 1mm. The circumferential steel sheet 31 significantly reduces hydroplaning effect, and compared with a large central tread block without steel sheets, the circumferential steel sheet 31 can shorten the wet braking distance. Preferably, the circumferential steel sheet 31 divides the central tread rib 3 into two parts of equal width. To improve the tire's deformation resistance and wet grip performance, and to compensate for the deficiencies of the longitudinal main groove in terms of grip, deformation resistance, and wear uniformity, multiple V-shaped steel sheets 32 are staggered on the central tread rib 3. The width of the V-shaped steel sheet 32 is 0.6mm-1.0mm, preferably 0.8mm.
[0027] In one embodiment of this utility model, the V-shaped steel sheet 32 and the circumferential steel sheet 31 divide the central patterned rib 3 into multiple central patterned blocks. Knurled lines 33 are alternately arranged on the central patterned blocks located on the same side of the circumferential steel sheet 31, and there is at least one central patterned block between adjacent knurled lines 33. The knurled lines 33 are composed of several small grooves. The width of the small grooves is 0.4mm-1mm, the depth of the small grooves is 0.4mm-1mm, and the spacing between adjacent small grooves is 0.8mm-1.5mm. By setting recessed knurled lines 33 at intervals on the central patterned rib 3, the appearance recognition can be optimized, the visual memory of the product can be enhanced, and the tire condition can also be assisted in observation. By observing whether the decorative lines become evenly shallower, it is possible to intuitively judge whether there is abnormal wear on the tire and promptly detect problems such as positioning deviation and improper tire pressure. In a preferred embodiment, the width of the fine groove is 0.5 mm, the depth of the fine groove is 0.5 mm, and the spacing between adjacent fine grooves is 1.0 mm. In a preferred embodiment, the protruding structure is V-shaped, and the opening direction of the V-shape is consistent with the opening direction of the V-shaped steel sheet 32.
[0028] This utility model relates to a tire tread pattern for heavy-duty trucks where the edge tread ribs and shoulder tread ribs near the longitudinal main grooves are densely distributed with fine transverse grooves. The depth of these transverse grooves is 0.6mm-1.0mm, preferably 0.8mm. This structural design can distribute tread pressure, optimize tire wear, and improve tire durability. Furthermore, the transverse grooves increase the drainage channels of the four straight longitudinal main grooves, making the drainage space of the longitudinal main grooves larger. This allows for faster drainage of rainwater between the tire and the ground when driving in rainy weather or on flooded roads, effectively reducing hydroplaning and improving tire safety on wet and slippery surfaces. In a preferred embodiment, the transverse grooves include edge transverse grooves 44 located on the edge tread ribs near the edge of the adjacent central longitudinal main groove 2, and shoulder transverse grooves 54 located on the shoulder tread ribs near the edge of the adjacent edge longitudinal main groove 1. The tire tread pattern of this utility model features multiple Z-shaped transverse grooves 43 spaced apart on the edge ribs. The two ends of the Z-shaped transverse grooves 43 are connected to the adjacent central longitudinal main grooves 2. This structural design enables a more uniform pressure distribution when the tire contacts the ground, effectively reducing uneven wear and improving the overall wear resistance of the tire.
[0029] In a preferred embodiment, the edge tread ribs include an inner edge tread rib 41 located inside the center line of the tire crown and an outer edge tread rib 42 located outside the center line of the tire crown.
[0030] The shoulder ribs of this heavy-duty truck tire feature a closed design, ensuring shoulder rigidity, resolving uneven wear on the tire shoulder, and extending tire lifespan. A circumferential heat dissipation groove 53 is provided on the side of the shoulder rib away from the tire crown centerline. The depth of the circumferential heat dissipation groove 53 is equal to the depth of the longitudinal main groove, and the width of the circumferential heat dissipation groove 53 is 2.0mm-3.5mm, preferably 2.7mm. The height h1 from the upper end of the groove wall on the side away from the tire crown centerline to the tire's running surface is 1mm-3mm, preferably 1.5mm.
[0031] In one embodiment of this utility model, the bottom of the circumferential heat dissipation groove 53 is provided with a groove with a width of 3mm-6mm, and the groove extends towards the center line of the tire crown. Preferably, the width of the groove is 5mm. This structural design prevents wear on the tire shoulder, and at the same time improves heat dissipation in the tire shoulder area by actively guiding airflow and optimizing the heat conduction path, effectively reducing wear defects such as shoulder gaps, and helping to improve tire durability, overall wear resistance and service life.
[0032] In a preferred embodiment, the shoulder tread ribs include an inner shoulder tread rib 51 located on the inner shoulder and an outer shoulder tread rib 52 located on the outer shoulder.
[0033] The above embodiments are only used to illustrate the technical solution of this utility model and not to limit it; although the utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications can still be made to the specific implementation of this utility model or equivalent substitutions can be made to some technical features without departing from the spirit of the technical solution of this utility model, and all such modifications and substitutions should be covered within the scope of the technical solution claimed by this utility model.
Claims
1. A tire tread pattern for heavy-duty trucks, characterized in that: It includes multiple longitudinal main grooves that extend longitudinally along the tire tread. The longitudinal main grooves include a central longitudinal main groove located on both sides of the tire crown centerline and a side longitudinal main groove located between the central longitudinal main groove and the edge of the tread. The width of the side longitudinal main groove is greater than that of the central longitudinal main groove. The bottom of the side longitudinal main groove is provided with a coupling protrusion extending circumferentially along the tread on the side closest to the tire crown centerline. The height of the top of the coupling protrusion from the tire running surface is 1.5mm-3mm.
2. The tread pattern for heavy-duty truck tires according to claim 1, characterized in that: The longitudinal main grooves divide the tire tread into multiple tread ribs. These ribs include shoulder ribs located on both sides of the tire shoulders, central ribs located at the center line of the tire crown, and edge ribs located between the shoulder ribs and the central ribs. The width ratio of the shoulder ribs to the central ribs is 1.7-1.85:1, and the width of the edge ribs is equal to the width of the central ribs.
3. The tread pattern for heavy-duty truck tires according to claim 2, characterized in that: The central tread ribs are provided with circumferential steel strips extending circumferentially along the tread, and the width of the circumferential steel strips is 0.8mm-1.2mm.
4. The tread pattern for heavy-duty truck tires according to claim 3, characterized in that: Multiple V-shaped steel plates are staggered on both sides of the circumferential steel plate of the central patterned rib. One end of the V-shaped steel plate is connected to the circumferential steel plate, and the other end of the V-shaped steel plate is connected to the adjacent longitudinal main groove.
5. The tread pattern for heavy-duty truck tires according to claim 4, characterized in that: The V-shaped steel sheet and the circumferential steel sheet divide the central patterned rib into multiple independent central patterned blocks, and knurled lines are alternately set on the central patterned blocks located on the same side of the circumferential steel sheet.
6. The tread pattern for heavy-duty truck tires according to claim 2, characterized in that: Multiple transverse grooves are spaced apart on the edges of the patterned ribs near the longitudinal main groove on both the edge and shoulder patterned ribs.
7. The tread pattern for heavy-duty truck tires according to claim 2, characterized in that: Multiple Z-shaped transverse grooves are spaced apart on the edge patterned ribs, and the two ends of the Z-shaped transverse grooves are connected to the adjacent longitudinal main grooves.
8. The tread pattern for heavy-duty truck tires according to claim 2, characterized in that: A circumferential heat dissipation groove is provided on the side of the shoulder tread rib away from the center line of the tire crown. The depth of the circumferential heat dissipation groove is equal to the depth of the longitudinal main groove. The height of the upper end of the groove wall on the side of the circumferential heat dissipation groove away from the center line of the tire crown to the tire running surface is 1mm-3mm.
9. The tread pattern for heavy-duty truck tires according to claim 8, characterized in that: The bottom of the circumferential heat dissipation groove is provided with a groove with a width of 3mm-6mm, and the groove extends towards the center line of the tire crown.
10. A tire, characterized in that: The tire tread includes the tread pattern of any one of claims 1-9 for heavy-duty truck tires.