Tire pattern and light passenger car tire

Abstract

The utility model discloses a tire tread and a light passenger tire, which comprise a middle longitudinal groove, a side pattern block, a shoulder longitudinal groove and a shoulder pattern block which are sequentially arranged on a tire tread from inside to outside, and further comprise a pair of side first grooves and a pair of shoulder transverse grooves, a plurality of groups of pattern blocks are respectively arranged on the side pattern blocks and the shoulder pattern blocks in a central symmetry manner and are arranged along the movement direction of the tire; the inner end of each side first groove is located in the corresponding side pattern block, and the outer end of each side first groove is communicated with the corresponding shoulder longitudinal groove. The inner end of each shoulder transverse groove is communicated with the corresponding shoulder longitudinal groove, and each shoulder transverse groove and the corresponding side first groove are integrally of a two-section type folding section structure. Compared with the prior art, the utility model has the beneficial effects that the two-section folding structure is formed, so that the novel road-holding hook can be deeply embedded into the ground like a hook, and excellent road-holding force can be provided no matter on a dry road surface or on a wet and muddy road surface.

Description

Technical Field

[0001] The utility model belongs to the technical field of tire treads, and particularly relates to a tire tread and a light passenger vehicle tire. Background Art

[0002] Light passenger vehicles (VANs) are one of the segments of light commercial vehicles, mainly used by small and medium-sized enterprises as commercial tools, powering the European economy and helping enterprises thrive. In 2023, the number of motor vehicles in the EU exceeded 285 million, of which the number of VANs was approximately 29.5 million, accounting for about 11%, making it the second largest vehicle type.

[0003] Due to its characteristics in terms of space and volume, light passenger vehicles can be used as business vehicles for picking up and dropping off employees, customers, etc.; they can also be used as logistics transport vehicles for carrying goods. They can also be converted into special vehicles such as ambulances and engineering vehicles. Therefore, they have a wide range of application scenarios and can be applied to urban roads, highways, and some relatively rough rural roads. Whether it is urban commuting, business reception, or cargo distribution, tourism rental, etc., they can play a role. It is precisely because of the above usage characteristics that compared with large buses, light passenger vehicles have relatively smaller body sizes, are more flexible to operate, and have a smaller turning radius, making it convenient to drive and turn around on narrow roads. Similarly, the vehicle tires of light passenger vehicles also need to match corresponding functional characteristics to meet their application requirements. Summary of the Utility Model

[0004] The details of one or more embodiments of the present utility model are set forth in the following drawings and description to make other features, objects, and advantages of the present application more concise and understandable.

[0005] The present utility model provides a tire tread and a light passenger vehicle tire. Through the combined design of different grooves, a two-stage folded structure is formed, enabling it to deeply embed into the ground like a hook. Whether on dry roads or in wet and muddy road conditions, it can provide excellent grip. For light passenger vehicles, this means more stable and reliable starting, accelerating, and braking, especially when loaded with heavy goods, it can effectively prevent the vehicle from slipping and ensure driving safety.

[0006] The present utility model discloses a tire tread. A central longitudinal groove, side tread blocks, shoulder longitudinal grooves, and shoulder tread blocks are sequentially arranged on the tread from the inside to the outside. It further includes:

[0007] A pair of side first grooves and a pair of shoulder transverse grooves, which are symmetrically arranged on the side tread blocks on both sides of the central longitudinal groove and the shoulder tread blocks respectively, and are provided with multiple groups along the movement direction of the tire;

[0008] The inner end of each of the first side grooves is located within the side tread blocks, and the outer end of each of the first side grooves communicates with the longitudinal shoulder groove;

[0009] The inner end of each of the transverse shoulder grooves communicates with the longitudinal shoulder groove, and each of the transverse shoulder grooves and the corresponding first side grooves integrally form a two-segment folded structure.

[0010] In some embodiments, the folding point of the two-segment folded structure is located on the side tread block.

[0011] In some embodiments, the first side grooves integrally form a V-shaped structure, and the width of the first side grooves tapers from the outer end to the inner end.

[0012] In some embodiments, an inwardly concave arc chamfer is provided on the tread surface at the inner end of the fold angle of the two-segment folded structure.

[0013] In some embodiments, the transverse shoulder grooves include a first shoulder groove and a second shoulder groove that are connected and communicate with each other, and the second shoulder groove communicates with the longitudinal shoulder groove, and the width of the second shoulder groove is smaller than the width of the first shoulder groove.

[0014] In some embodiments, the width of the first shoulder groove tapers from the outer end to the inner end, and an inwardly concave arc chamfer is provided on the tread surface at the connection between the first shoulder groove and the second shoulder groove.

[0015] In some embodiments, it further includes:

[0016] A T-shaped groove, which is in a T-shaped structure and is provided between each set of adjacent upper and lower transverse shoulder grooves; the two side ends of the T-shaped groove are respectively connected to the adjacent upper and lower transverse shoulder grooves.

[0017] In some embodiments, the third end of the T-shaped groove penetrates the longitudinal shoulder groove and extends to the side tread block between the adjacent upper and lower first side grooves, and does not communicate with the central longitudinal groove.

[0018] In some embodiments, either end of the two side ends of the T-shaped groove communicates with the intersection of the first shoulder groove and the second shoulder groove in the corresponding transverse shoulder groove.

[0019] A light passenger vehicle tire, including: the tire tread pattern according to any one of the above embodiments.

[0020] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0021] 1. First, the two - segment folding structure formed by the combination of the first side groove and the transverse shoulder groove adopts a "hook" - shaped structure design. During the contact between the tread and the ground, it can be deeply embedded in the ground like a hook, providing excellent grip whether on dry roads or in wet and muddy road conditions. For light buses, this means more stable and reliable starting, accelerating, and braking. Especially when carrying heavy loads, it can effectively prevent the vehicle from skidding and ensure driving safety.

[0022] 2. Secondly, through the design of three longitudinal grooves formed by the cooperation of the middle longitudinal groove and the shoulder longitudinal groove, under the design of the connected structure, it can quickly drain the water between the tire and the ground, avoid the occurrence of hydroplaning, and improve driving safety.

[0023] 3. Furthermore, by making a reasonable layout of the transverse grooves and longitudinal grooves, combining their advantages, it fully ensures good drainage performance, braking performance, and low rolling resistance of light buses, enabling light buses to have excellent performance under various road conditions.

[0024] 4. At the same time, the symmetric pattern design is adopted, making the performance of the tire relatively balanced in all directions. Whether driving straight, turning, or braking, it can provide stable and reliable performance. Especially for the driving state of light buses that usually need to travel on the road for a long time, its stable performance can ensure driving safety and comfort. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present invention. The schematic embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention.

[0026] Figure 1 It is a schematic structural diagram of the present invention.

[0027] BRIEF DESCRIPTION OF THE DRAWINGS: Middle longitudinal groove 1, Shoulder longitudinal groove 2, Side pattern block 3, Shoulder pattern block 4, First side groove 5, Second side groove 6, First shoulder groove 7, Second shoulder groove 8, Third shoulder groove 9, Fourth shoulder groove 10. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0028] In order to make the purpose, technical solutions, and advantages of the present invention clearer, the following describes and explains the present invention with reference to the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention. Based on the embodiments provided by the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0029] Obviously, the accompanying drawings in the following description are only some examples or embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, the present utility model can also be applied to other similar scenarios based on these drawings. In addition, it can also be understood that although the efforts made in such a development process may be complex and lengthy, for those of ordinary skill in the art related to the content disclosed by the present utility model, some design, manufacturing, or production changes based on the technical content disclosed by the present utility model are only conventional technical means and should not be understood as the insufficient disclosure of the content of the present utility model.

[0030] When the term "embodiment" is mentioned in the present utility model, it means that the specific features, structures, or characteristics described in combination with the embodiment can be included in at least one embodiment of the present utility model. The appearance of this phrase at various positions in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment mutually exclusive with other embodiments. Those of ordinary skill in the art explicitly and implicitly understand that the embodiments described in the present utility model can be combined with other embodiments without conflict.

[0031] A tire tread pattern, in which a central longitudinal groove 1, side pattern blocks 3, shoulder longitudinal grooves 2, and shoulder pattern blocks 4 are sequentially arranged from the inside to the outside on the tread surface, further includes:

[0032] A pair of side first grooves 5 and a pair of shoulder transverse grooves, which are symmetrically arranged at the center on the side pattern blocks 3 and the shoulder pattern blocks 4 on both sides of the central longitudinal groove 1 respectively, and are provided with multiple groups along the movement direction of the tire;

[0033] The inner end of each side first groove 5 is located inside the side pattern block 3, and the outer end of each side first groove 5 is connected to the shoulder longitudinal groove 2;

[0034] The inner end of each shoulder transverse groove is connected to the shoulder longitudinal groove 2, and each shoulder transverse groove and its corresponding side first groove 5 are integrally in a two-segment folded structure.

[0035] Specifically, the central longitudinal groove 1 is located at the center position of the tread surface, and on both sides of it are the side pattern blocks 3, shoulder longitudinal grooves 2, and shoulder pattern blocks 4 respectively; among them, in terms of width, the width of the shoulder pattern block 4 is greater than the width of the side pattern block 3 to adapt to the usage scenario requirements for light buses. Through the design of the wide shoulder pattern block 4, it can disperse a large amount of weight and load, provide higher load-bearing capacity for the tire, and at the same time provide a larger grounding area for the tire, thereby enhancing the stability of the vehicle.

[0036] In some embodiments, the folding point of the two-segment folded structure is located on the side pattern block 3.

[0037] When the vehicle tire is in contact with the ground, the force deformation in the middle is greater. Therefore, the design of the folding point on the side pattern block 3 can effectively improve the handling performance of the vehicle. Specifically, the first side groove 5 is in a V-shaped structure as a whole, and the width of the first side groove 5 is a gradually decreasing structure from the outer end to the inner end. Through the above arrangement, the drainage performance can be better improved, especially for muddy roads, the variable diameter structure can better discharge mud, sand and stones through the extrusion force to ensure the safety of the vehicle.

[0038] Taking into account the stress, extrusion and deformation at the folding point, in order to reduce the risk of tearing, further, an inwardly recessed arc chamfer is provided on the tread at the inner end of the folding angle of the two-stage folding structure.

[0039] In some embodiments, the shoulder transverse groove includes a first shoulder groove 7 and a second shoulder groove 8 that are connected, and the second shoulder groove 8 is connected to the shoulder longitudinal groove 2, and the width of the second shoulder groove 8 is smaller than the width of the first shoulder groove 7. The design method with different widths is adopted. First, the drainage performance is increased, and its principle is the same as the above structure, so it is not repeated here; second, the common frequency of noise can be reduced through the above structure, thereby improving the driving comfort of the vehicle.

[0040] Specifically, the width of the first shoulder groove 7 is gradually reduced from the outer end to the inner end, and an inwardly concave arc chamfer is provided on the tread at the connection point between the first shoulder groove 7 and the second shoulder groove 8. The overall width of the first shoulder groove 7 is relatively wide, so it is easy to be stuck with stones. The variable diameter structure can better discharge mud, sand and stones through the extrusion force to ensure the safety of the vehicle. At the same time, for the connection point, an inwardly concave arc chamfer is provided on the corresponding tread, so as to avoid the phenomenon of tearing at the connection point as much as possible and improve its service life.

[0041] like Figure 1 As shown in the figure, one side of the first shoulder groove 7 and the second shoulder groove 8 are arranged flush, and due to the unequal width, there is a position difference between the lower ends of the two. In order to reduce the force tearing at the position difference, a corresponding arc chamfer is added.

[0042] In combination with the aforementioned usage scenarios for light passenger vehicles, further, it also includes:

[0043] The T-shaped groove is in a T-shaped structure and is provided between each group of adjacent upper and lower shoulder transverse grooves; the two side ends of the T-shaped groove are respectively connected to the adjacent upper and lower shoulder transverse grooves. The T-shaped structure design is adopted, and the two side ends of the T-shaped groove are respectively connected to the adjacent upper and lower shoulder transverse grooves, so as to divide the tread blocks to adjust the strength of the tread blocks. At the same time, sufficient deformation space is given to the shoulder tread block 4 to meet its force deformation, and through the corner structure formed by the T-shaped structure, when the vehicle turns or bears lateral force, it can better support the vehicle body and enhance the controllability of the vehicle.

[0044] Specifically, the third end of the T-shaped groove penetrates through the shoulder longitudinal groove 2 and extends to the side tread block 3 between the adjacent upper and lower side first grooves 5, and is not connected to the middle longitudinal groove 1. Any one of the two side ends of the T-shaped groove is connected to the intersection of the shoulder first groove 7 and the shoulder second groove 8 in the corresponding shoulder transverse groove.

[0045] Among them, as Figure 1 shown, the T-shaped groove includes: a shoulder third groove 9, a shoulder fourth groove 10, and a side second groove 6; one end of the shoulder third groove 9 is connected to the shoulder first groove 7, and the other end of the shoulder third groove 9 is connected to the connection of the shoulder first groove 7 and the shoulder second groove 8; one end of the shoulder fourth groove 10 is connected to the shoulder third groove 9, and the other end of the shoulder fourth groove 10 is connected to the shoulder longitudinal groove 2; the outer end of the side second groove 6 is connected to the shoulder longitudinal groove 2, the inner end of the side second groove 6 is located in the side tread block 3, and the side second groove 6 and the shoulder fourth groove 10 are arranged in a collinear structure, and its transverse width is smaller than the transverse width of the side first groove 5, that is, inside the corner space formed by the side first groove 5. For details, reference can be made to Figure 1 shown.

[0046] The shoulder third groove 9 and the shoulder fourth groove 10 form a connected structure, which increases the drainage performance of the tire and forms a corner structure to improve the controllability of the vehicle. The side second groove 6 adopts a semi-penetrating structure, thereby adjusting the rigidity strength of the side tread block 3 and improving the comfort of vehicle driving.

[0047] A light bus tire includes: the tire tread pattern according to any one of the above embodiments.

[0048] Although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A tire tread pattern, in which a central longitudinal groove, side tread blocks, shoulder longitudinal grooves, and shoulder tread blocks are sequentially arranged from the inside to the outside on the tread surface, characterized in that, Further comprising: A pair of side first grooves and a pair of shoulder transverse grooves, which are symmetrically arranged on the side tread blocks and the shoulder tread blocks on both sides of the middle longitudinal groove respectively, and are provided with multiple groups along the moving direction of the tire; The inner end of each side first groove is located within the side tread block, and the outer end of each side first groove is connected to the shoulder longitudinal groove; The inner end of each shoulder transverse groove is connected to the shoulder longitudinal groove, and each shoulder transverse groove and the corresponding side first groove are integrally in a two-segment folded structure.

2. The tire tread according to claim 1, wherein The folding point of the two-segment folded structure is located on the side tread block.

3. The tire tread according to claim 1, characterized in that, The side first groove is integrally in a V-shaped structure, and the width of the side first groove is in a gradually shrinking structure from its outer end to its inner end.

4. The tire tread according to claim 1, wherein, An inwardly concave arc chamfer is provided on the tread surface at the inner end of the folding angle of the two-segment folded structure.

5. The tire tread according to claim 1, characterized in that, The shoulder transverse groove includes a connected shoulder first groove and a shoulder second groove, and the shoulder second groove is connected to the shoulder longitudinal groove, and the width of the shoulder second groove is smaller than the width of the shoulder first groove.

6. The tire tread according to claim 5, characterized in that, The width of the shoulder first groove is in a gradually shrinking structure from its outer end to its inner end, and an inwardly concave arc chamfer is provided on the tread surface at the connection of the shoulder first groove and the shoulder second groove.

7. The tire tread according to claim 5, characterized in that, Further comprising: A T-shaped groove, which is in a T-shaped structure and is arranged between each adjacent upper and lower pair of shoulder transverse grooves; the two side ends of the T-shaped groove are respectively connected to the adjacent upper and lower shoulder transverse grooves.

8. The tire tread according to claim 7, characterized in that, The third end of the T-shaped groove penetrates the shoulder longitudinal groove and extends to the side tread block between the adjacent upper and lower side first grooves, and is not connected to the middle longitudinal groove.

9. The tire tread according to claim 7, characterized in that, Any one of the two side ends of the T-shaped groove is connected to the intersection of the shoulder first groove and the shoulder second groove in the corresponding shoulder transverse groove.

10. A light passenger vehicle tire, characterized in that, Comprising: The tire tread according to any one of claims 1-9.

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