Middle-short-distance truck tire pattern and tire
By designing shield-shaped tread blocks, figure-eight-shaped transverse grooves, and zigzag longitudinal grooves, combined with steel sipes and heat dissipation grooves, the problem of debris accumulation in the gaps between tread blocks of medium- and short-haul heavy-duty tires has been solved, improving tire performance and lifespan while reducing costs.
Patent Information
- Application Number
- CN202520134481.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-20
- Publication Date
- 2025-12-09
- Estimated Expiration
- 2035-01-20
AI Technical Summary
Existing medium- and short-haul heavy-duty tires with block tread patterns have large gaps between the tread blocks, which easily accumulates mud, sand, stones, and other debris, leading to accelerated tire wear, reduced service life, and increased operating costs.
A medium-to-short-range heavy-duty tire tread pattern is designed, which adopts multiple longitudinal grooves and tread blocks extending circumferentially along the tread surface. The tread blocks are shield-shaped, and transverse grooves are set to form a figure-eight structure. There are steel sipes on the central tread blocks, the longitudinal grooves are zigzag-shaped, and there are heat dissipation grooves on the tire shoulder to enhance drainage and mud removal efficiency and heat dissipation performance.
It improves the tire's anti-slip performance, wear resistance, driving performance and handling stability, extends its service life, reduces tire usage costs, and enhances fuel economy and safety.
Smart Images
Figure CN223644572U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of tire technology, and in particular relates to a tread pattern and tire for medium and short-distance heavy-duty vehicles. Background Technology
[0002] As a key component in contact with the ground, tires bear the core tasks of supporting the vehicle's weight, absorbing road impacts, providing traction and braking force, and ensuring vehicle handling stability. There are many types of tires, including passenger car tires, commercial vehicle tires, motorcycle tires, and bicycle tires, and tire performance has a crucial impact on vehicle driving safety and comfort.
[0003] Medium- and short-haul heavy-duty vehicles are mainly used for medium- and short-distance freight transportation. The tires for these vehicles need to withstand frequent starts and stops, turns, and wear under different road conditions. Their operating environments typically include urban roads, highways, rural roads, and certain industrial areas. On urban roads, tires may need to cope with traffic congestion and frequent acceleration and deceleration; highway driving requires tires with good stability and high-speed performance; rural roads may contain uneven surfaces and gravel, requiring tires with strong puncture resistance and wear resistance; industrial areas may have oil stains and chemicals on the road surface, requiring tires to have a certain degree of chemical corrosion resistance.
[0004] Currently, medium- and short-haul truck tires generally adopt a block tread design. Their significant characteristic is the large tread blocks, which provide excellent driving and braking force, exhibiting superior performance on low-friction surfaces such as snow and mud, and are suitable for all wheel positions on medium- and short-haul vehicles. However, due to the large gaps between the tread blocks, mud, sand, stones, and other debris easily accumulate, leading to accelerated tire wear, significantly reducing tire lifespan, and increasing tire operating costs. Therefore, the wear resistance of block tread tires needs improvement. This utility model proposes a tread pattern and tire design for medium- and short-haul truck tires. Utility Model Content
[0005] Details of one or more embodiments of the present invention are set forth in the following drawings and description to make other features, objects and advantages of the present application more readily apparent.
[0006] This invention proposes a tread pattern and tire for medium- and short-haul heavy-duty vehicles, solving the technical problem that existing block tread patterns for medium- and short-haul heavy-duty vehicles, due to their large gaps between tread blocks, easily accumulate mud, sand, stones, and other debris, leading to accelerated tire wear, significantly reducing tire lifespan, and increasing tire operating costs. The tread pattern of this invention effectively removes debris and water from the tire, improving drainage and mud removal efficiency, enhancing the tire's anti-skid performance, driving performance, wear resistance, and handling stability, extending tire lifespan, and reducing tire operating costs.
[0007] This utility model discloses a tread pattern for medium- and short-range heavy-duty tires, including multiple longitudinal grooves extending circumferentially along the tread and multiple tread blocks divided by the longitudinal grooves. The tread blocks include central tread blocks located on both sides of the tread centerline. The central tread blocks are provided with circumferentially equidistant transverse grooves, and adjacent transverse grooves form a figure-eight structure. The two ends of the transverse grooves are respectively connected to the adjacent longitudinal grooves and divide the central tread blocks into several shield-shaped tread blocks of the same size.
[0008] In some embodiments, the interior angle of each shield-shaped patterned block in the central patterned block is greater than 110°.
[0009] In some embodiments, an inverted V-shaped steel groove is provided on the central patterned block, and the depth of the steel groove is ≤3mm.
[0010] In some embodiments, the longitudinal grooves of the pattern are of a zigzag shape, with a zigzag bending angle of 125° to 150° and a depth of 17 to 20 mm.
[0011] In some embodiments, the tread grooves include a central tread groove located on the centerline of the tread and side tread grooves located on both sides of the central tread groove, and both the central tread groove and the side tread grooves are irregular zigzag structures.
[0012] In some embodiments, the width of the central patterned longitudinal groove is 15-20 mm, and the width of the edge patterned longitudinal groove is 13-15 mm.
[0013] In some embodiments, the depth of the patterned grooves is 17–20 mm, the width of the patterned grooves is 10–13 mm, and the angle of the groove walls is 10°–13°.
[0014] In some embodiments, the tread blocks also include shoulder tread blocks located on both sides of the tire shoulders, with multiple heat dissipation grooves spaced apart on the shoulder tread blocks.
[0015] In another aspect, this utility model also provides a tire, wherein the tire tread is provided with any of the above-mentioned medium and short-distance load-bearing tire patterns.
[0016] In some embodiments, the saturation of the tire tread pattern is 50% to 70%.
[0017] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0018] (1) The central pattern block of the short- and medium-duty load-bearing tire pattern of this utility model is a block pattern structure with several shield-shaped structures, which enhances the road grip of the tire during use and improves the driving ability; the adjacent tread grooves of each shield-shaped pattern block form a figure-eight structure, which can effectively drain debris and water from the tire, greatly promote the drainage and mud removal efficiency, keep the tread clean and dry, enhance the driving performance, anti-slip performance, wear resistance and grip of the tire, and improve the handling performance.
[0019] (2) The steel rib groove structure is provided on the middle tread block of the short- and medium-duty load tire pattern of this utility model, which can improve the stability of the tire during driving, reduce the side deviation accident rate, and effectively ensure that the additional heat equivalent generated during tire operation is discharged in time.
[0020] (3) The longitudinal grooves of the tread pattern of the medium and short-haul heavy-duty tire of this utility model are of a broken line structure. The bend of the broken line is complementary to the corresponding shield-shaped tread block. The bending angle is the same as that of the shield-shaped tread block, which can effectively reduce the heat caused by bending deformation, effectively reduce the rolling resistance of the tire, and improve fuel economy. 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:
[0022] Figure 1 This is a schematic diagram of the tread pattern of a medium- and short-haul heavy-duty tire provided in an embodiment of the present invention;
[0023] In the attached diagram: 1. Central patterned longitudinal groove, 2. Central patterned block, 3. Edge patterned longitudinal groove, 4. Shoulder patterned block, 5. Patterned transverse groove, 6. Steel blade groove, 7. Heat dissipation groove. Detailed Implementation
[0024] 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.
[0025] 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, and the term "lateral" refers to the direction perpendicular to the mid-surface of the tire.
[0026] This utility model embodiment provides a tread pattern and tire for medium and short-haul heavy-duty vehicles. Figure 1 This is a schematic diagram of the tread pattern for a medium-to-short-distance heavy-duty tire according to an embodiment of the present invention. (Reference) Figure 1As shown, the tread pattern of this medium- and short-haul heavy-duty tire includes multiple longitudinal grooves extending circumferentially along the tread and multiple tread blocks divided by the longitudinal grooves. The tread blocks include central tread blocks 2 located on both sides of the tread centerline and shoulder tread blocks 4 located on both sides of the tire shoulders. The central tread blocks 2 are provided with circumferentially equidistant transverse grooves 5, and adjacent transverse grooves 5 form a figure-eight structure. The two ends of the transverse grooves 5 are respectively connected to the adjacent longitudinal grooves and divide the central tread blocks 2 into several shield-shaped tread blocks of the same size. Thus, the central tread blocks 2 on both sides of the tread centerline form shield-shaped tread blocks arranged longitudinally at equal intervals. By setting the central tread blocks 2 on both sides of the tread centerline as independent shield-shaped tread blocks arranged longitudinally at equal intervals, the heat dissipation area can be increased, reducing the heat generated by flexing and other deformations of the tread during operation, and effectively dissipating the generated heat. When facing complex road conditions such as water accumulation and fine sand, it can increase driving traction and effectively guide water accumulation and fine sand out, reducing tread wear. The central tread blocks 2 on both sides of the tread centerline adopt a diagonally mirror-symmetrical arrangement of main tread blocks, which can prevent abnormal wear. The shield-shaped tread design significantly enhances the tire's road grip during use, thereby improving driving capability. In a preferred embodiment, the inner angle of each shield-shaped tread block is greater than 110°. This design can effectively prevent small stones and sand from embedding in the tread blocks and causing tire scratches and other safety hazards. Moreover, the shape of the shield-shaped tread blocks allows the tire to more effectively disperse and resist pressure when subjected to external forces, thereby improving the overall mechanical performance and giving the tire better stability and load-bearing capacity. In single-pitch tread blocks, the asymmetrical structure improves grip, making it suitable for aggressive driving scenarios such as rapid acceleration and sharp turns. It also enhances drainage and braking performance, ensuring stable handling even on slippery surfaces, making it suitable for various road conditions.
[0027] The tread grooves of this utility model's medium- and short-haul heavy-duty tire have a zigzag structure, with a zigzag bending angle of 125° to 150° and a groove depth of 17 to 20 mm. The multiple zigzag grooves effectively reduce tire noise while providing excellent water drainage and braking performance. The tread grooves include a central groove 1 located along the centerline of the tread and side grooves 3 located on both sides of the tread. Both the central groove 1 and the side grooves 3 have irregular zigzag structures. The width of the central groove 1 is 15 to 20 mm, and the width of the side grooves 3 is 13 to 15 mm. The central longitudinal groove 1 is located between the two central tread blocks 2, serving to separate them. The central longitudinal groove 1 also connects the transverse grooves 5 located on either side of the tread centerline of the two central tread blocks 2. The adjacent transverse grooves 5 on either side of the tread centerline have the same inclination angle. The bends in the longitudinal grooves complement the corresponding shield-shaped tread blocks, with the bend angle matching the shield-shaped tread blocks. During tire operation, this complementary structure effectively reduces heat generated by flexural deformation, effectively reducing rolling resistance and improving fuel economy.
[0028] The transverse grooves 5 of this utility model's medium- and short-haul heavy-duty tire have a depth of 17-20mm, a width of 10-13mm, and a groove wall angle of 10°-13°. The transverse grooves 5 connect the central longitudinal grooves 1 and the edge longitudinal grooves 3. This interconnected design guides debris from the tire tread, allowing stones and mud to be expelled promptly. The transverse grooves 5 adjacent to the central tread block 2 form a V-shaped structure, effectively draining debris and water from the tire, greatly improving drainage and mud removal efficiency. This helps maintain the cleanliness and dryness of the tire tread, enhancing its driving performance, anti-skid performance, wear resistance, and grip, thus improving handling performance. It particularly excels in harsh road conditions such as mud and gravel.
[0029] The saturation of the tread pattern in this utility model for short- and medium-haul heavy-duty tires is 50-70%, preferably 69%. A V-shaped steel sipe 6 structure is provided on the central tread block 2. The opening direction of the V-shape is the same as the opening direction of the adjacent tread grooves 5 forming a figure-eight shape, which can improve tire stability during driving, reduce sideslip, lower the rate of lateral deviation accidents, and effectively ensure the timely dissipation of additional heat equivalent generated during tire operation. In a preferred embodiment, the depth of the steel sipe 6 is ≤3mm. The shoulder area adopts a semi-open shoulder structure, with multiple heat dissipation grooves 7 spaced apart at one end of the shoulder tread block 4 near the tread edge, effectively increasing the heat dissipation area of the shoulder area and timely dissipating the heat equivalent generated by rapid deformation during high-speed tire driving. During tire operation, the shoulder area undergoes significant flexural deformation, which shows a non-linear change in the thermal deformation coordinate system, easily generating heat that cannot be dissipated in time, thus affecting tire durability. This invention, by setting heat dissipation grooves 7 on the shoulder and combining them with the design of longitudinal grooves in the tread pattern, can reduce the occurrence of problems such as empty tire shoulder crowns to a certain extent.
[0030] 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 tread pattern for medium- and short-haul heavy-duty tires, characterized in that: It includes multiple longitudinal grooves extending along the circumference of the tread and multiple tread blocks divided by the longitudinal grooves. The tread blocks include central tread blocks located on both sides of the centerline of the tread. The central tread blocks are provided with transverse grooves arranged equidistantly along the circumference, and adjacent transverse grooves form a figure-eight structure. The two ends of the transverse grooves are connected to the adjacent longitudinal grooves and divide the central tread blocks into several shield-shaped tread blocks of the same size.
2. The tread pattern for medium- and short-haul heavy-duty tires according to claim 1, characterized in that: The interior angle of each shield-shaped pattern block in the central pattern is greater than 110°.
3. The tread pattern for medium- and short-haul heavy-duty tires according to claim 1, characterized in that: The central patterned block is provided with an inverted V-shaped steel groove, the depth of which is ≤3mm.
4. The tread pattern for medium- and short-haul heavy-duty tires according to claim 1, characterized in that: The longitudinal grooves of the pattern have a zigzag structure with a zigzag bending angle of 125° to 150° and a depth of 17 to 20 mm.
5. The tread pattern for medium- and short-haul heavy-duty tires according to claim 1, characterized in that: The tread grooves include the central tread groove located at the center line of the tread and the edge tread grooves located on both sides of the central tread groove, and both the central tread groove and the edge tread grooves are irregular zigzag structures.
6. The tread pattern for medium- and short-haul heavy-duty tires according to claim 5, characterized in that: The width of the longitudinal groove in the middle of the pattern is 15-20 mm, and the width of the longitudinal groove in the edge of the pattern is 13-15 mm.
7. The tread pattern for medium- and short-haul heavy-duty tires according to claim 1, characterized in that: The depth of the patterned grooves is 17–20 mm, the width of the patterned grooves is 10–13 mm, and the angle of the groove walls is 10°–13°.
8. The tread pattern for medium- and short-haul heavy-duty tires according to claim 1, characterized in that: The tread blocks also include shoulder tread blocks located on both sides of the tire, with multiple heat dissipation grooves spaced apart on the shoulder tread blocks.
9. A tire, characterized in that: The tire tread is provided with the tread pattern of any one of claims 1-8 for medium and short-distance heavy-duty tires.
10. The tire according to claim 9, characterized in that: The saturation of the tire tread pattern is 50% to 70%.