Tire having dry performance and wet performance

Abstract

A tire having dry performance and wet performance, comprising: a tire body, having a tread provided with a plurality of longitudinal pattern grooves (1) and a plurality of transverse pattern grooves (2), each patten block being provided a siphon groove, wherein the siphon groove comprises a cylindrical groove (40), at least one rainwater groove (41), and a drainage groove (42); the cylindrical groove (40) is formed in the pattern block; one end of the rainwater groove (41) is communicated with the cylindrical groove (40), and the other end of the rainwater groove (41) is communicated with the corresponding longitudinal pattern groove (1) or the corresponding transverse pattern groove (2); and the drainage groove (42) is communicated with the corresponding longitudinal pattern groove (1) and the cylindrical groove (40). When a road is water-logged, air in cylindrical grooves (40) is discharged under pressure, so that a pressure difference is formed between the cylindrical grooves (40) and the outside; by means of the siphon effect, water on the surface of the tire is quickly suctioned into the cylindrical grooves (40) from the rainwater grooves (41); and logged water passes through the transverse pattern grooves (2) and the siphon groove structures and is gathered at the longitudinal pattern grooves (1) for drainage, so that drainage can be sped up without changing the design width of the longitudinal pattern grooves (1), and the dry performance can be maintained while the wet performance is improved, thereby effectively balancing the dry performance and the wet performance.

Description

A tire with both dry and wet performance Technical Field

[0001] The present invention relates to the field of automobile tires, and in particular to a tire having both dry and wet land performance. Background Art

[0002] When driving in the rain, if the accumulated water between the tire and the road surface cannot be drained in time, a film of water will form between the tire and the ground. This film of water prevents the tire from properly contacting the ground, significantly reducing various tire performances such as handling, grip, and braking. We call this phenomenon hydroplaning. Hydroplaning is actually very common and occurs on wet roads. Its severity is proportional to the vehicle's speed. Tires with strong wet performance generally have four longitudinal main grooves, which greatly improve the tire's drainage capacity. In addition, the transverse patterns on both sides effectively prevent the formation of water film, minimizing the probability of hydroplaning.

[0003] Existing technology mainly improves wetland performance by increasing the width of the tire's longitudinal and transverse grooves to break up the water film. While this groove design improves wetland performance, it also reduces the contact area between the tire and the ground, affecting dry braking performance and failing to achieve the requirement of balanced dry and wet performance. Summary of the Invention

[0004] The present invention aims to solve the problem of tires.

[0005] To this end, an embodiment of the present invention provides a tire that can achieve rapid drainage of water from the tire and has both dry and wet performance.

[0006] A tire having both dry and wet performance according to an embodiment of the first aspect of the present invention comprises:

[0007] A tire carcass having a tread with a plurality of longitudinal grooves and a plurality of transverse grooves, wherein the longitudinal grooves and the transverse grooves are connected and divide the tread of the tire carcass into a plurality of pattern blocks; and siphon grooves are formed on the pattern blocks;

[0008] The siphon groove includes a cylindrical groove, at least one rainwater groove and a drainage groove; the cylindrical groove is opened on the pattern block; one end of the rainwater groove is connected to the cylindrical groove, and the other end is connected to the longitudinal groove or the transverse groove; the drainage groove is connected to the longitudinal groove and the cylindrical groove, and can collect rainwater on the surface of the pattern block to the cylindrical groove and discharge it into the longitudinal groove through the drainage groove.

[0009] According to the pneumatic tire of the embodiment of the present invention, by adding siphon-type grooves that can accelerate drainage on the tire tread blocks, the water film can be effectively cut when there is less water on the road, thereby reducing the hydroplaning phenomenon. When there is more water on the road, the air in the cylindrical groove is squeezed out, forming a pressure difference with the outside world. With the help of the siphon effect, the water on the surface of the tire is quickly sucked into the cylindrical groove, and the accumulated water is collected in the longitudinal groove through a number of rainwater grooves for discharge. The drainage can be accelerated without changing the design width of the longitudinal groove, thereby maintaining the dry land performance while improving the wetland performance, and effectively balancing the dry and wet land performance.

[0010] In some embodiments, on a cross section of the tire carcass in the tire meridian direction, a plurality of rainwater grooves are provided, and the plurality of rainwater grooves respectively connect the columnar groove and the longitudinal groove, and the columnar groove and the transverse groove.

[0011] In some embodiments, there are a plurality of siphon grooves, each of which is opened on each of the tread blocks, and all of which are connected to the longitudinal tread grooves through the drainage grooves.

[0012] In some embodiments, at the maximum cross-width, a rain gutter structure is formed at the top opening of the cylindrical groove, and the rain gutter structure is connected to the rainwater groove.

[0013] In some embodiments, the diameter R1 of the rain gutter structure is 1 mm to 5 mm, and the depth ranges from 0.2 mm to 2 mm.

[0014] In some embodiments, the width of the rainwater groove ranges from 0.5 mm to 5 mm, and the depth ranges from 3 mm to 10 mm.

[0015] In some embodiments, the diameter R2 of the cylindrical groove is 1 mm to 3 mm, and the depth ranges from 2 mm to 10 mm.

[0016] In some embodiments, the angle between the rainwater groove and the longitudinal groove ranges from 20° to 160°.

[0017] In some embodiments, there are 1 to 4 rainwater grooves; and the rainwater grooves are distributed divergently on the tread block.

[0018] In some embodiments, there are four rainwater grooves, and two of them connect the cylindrical groove and the longitudinal groove; the remaining two connect the cylindrical groove and the transverse groove, and the two rainwater grooves connecting the cylindrical groove and the longitudinal groove are spaced apart from the two rainwater grooves connecting the cylindrical groove and the transverse groove.

[0019] It should be understood that the above general description and the following detailed description are only exemplary and explanatory, and do not limit the present disclosure. Other features and aspects of the present disclosure will become more apparent from the following detailed description of exemplary embodiments with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the specific embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0021] FIG1 is a schematic diagram of a partial structure of a tire having both dry and wet performance according to an embodiment of the present invention.

[0022] FIG2 is a schematic structural diagram of point A in FIG1 .

[0023] Figure 3 Schematic diagram of point A in Figure 1.

[0024] Reference numerals:

[0025] 1. Longitudinal tread groove; 2. Transverse tread groove; 3. Tread block; 40. Columnar groove; 41. Rainwater groove; 42. Drainage ditch; 43. Rainwater gutter structure. DETAILED DESCRIPTION

[0026] The following will clearly and completely describe the technical solutions of the present invention in conjunction with the embodiments. Obviously, the embodiments described are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0027] As described in the background technology, tires drain water through longitudinal grooves. To improve wet performance, the width of the longitudinal grooves and the number of transverse grooves need to be increased to break up the water film. However, while this groove design improves wet performance, it also reduces the contact area between the tire and the ground, affecting dry braking performance and failing to achieve the requirement of balanced dry and wet performance.

[0028] To improve the above-mentioned problems, the present application proposes a tire that has both dry and wet performance. The groove structure of the existing tire is improved, and a siphon groove structure is added, so that the tire can accelerate drainage without changing the design width of the longitudinal groove, thereby improving the wet performance while maintaining the dry performance, and effectively balancing the dry and wet performance.

[0029] The embodiment of the present application is described below with reference to FIG1 .

[0030] 1-3 , a tire with both wet and dry performance according to an embodiment of the present application includes: a tire carcass having a tread formed with a plurality of longitudinal grooves 1 and a plurality of transverse grooves 2, wherein the longitudinal grooves 1 and the transverse grooves 2 are connected and divide the tread of the tire carcass into a plurality of pattern blocks 3; and siphon grooves are formed in the pattern blocks 3.

[0031] The siphon groove includes a cylindrical groove 40, at least one rainwater groove 41 and a drainage groove 42; the cylindrical groove 40 is opened on the pattern block 3; one end of the rainwater groove 41 is connected to the cylindrical groove 40, and the other end is connected to the longitudinal groove 1 or the transverse groove 2; the drainage groove 42 is connected to the longitudinal groove 1 and the cylindrical groove 40, and can collect rainwater on the surface of the pattern block 3 to the cylindrical groove 40 and discharge it into the longitudinal groove 1 through the drainage groove 42.

[0032] Specifically, the longitudinal groove 1 is along the circumferential direction of the tire, with a width of 5 to 25 mm, dividing the tire longitudinally into 4 to 6 tread blocks 3. The transverse groove 2 is along the transverse direction of the tire, with a width of 1 to 8 mm and an angle of 0° to 180° with the longitudinal groove.

[0033] It should be understood that the advantage of the scheme is that by designing a new siphon groove structure, when there is a lot of water on the road, the air in the cylindrical groove 40 is squeezed out, forming a pressure difference with the outside world. With the help of the siphon effect, the water on the tire surface is quickly sucked into the cylindrical groove 40 from the rainwater groove 41. The accumulated water is collected into the longitudinal groove 1 through the transverse groove 2 and the siphon groove structure and discharged. The design width of the longitudinal groove 1 does not need to be changed, and the drainage can be accelerated, thereby maintaining the dry land performance while improving the wet land performance, and effectively balancing the dry and wet land performance.

[0034] In some specific embodiments, a plurality of rainwater grooves 41 are provided, and the plurality of rainwater grooves 41 respectively connect the cylindrical groove 40 and the longitudinal groove 1 , and the cylindrical groove 40 and the transverse groove 2 .

[0035] Through the above technical solution, the present invention can increase the speed of tread drainage, quickly collect rainwater into the longitudinal groove 1, quickly drain it away, hinder the formation of water film, and improve wet performance.

[0036] In some specific embodiments, there are a plurality of siphon grooves, each of which is opened on each tread block 3 and is connected to the longitudinal groove 1 through the drainage groove 42 .

[0037] Through the above technical solution, the present invention can further improve the wet performance of the tire by increasing the number of siphon grooves.

[0038] 2-3 , in some embodiments, a rain gutter structure 43 is formed at the top opening of the cylindrical groove 40 , and the rain gutter structure 43 is communicated with the rainwater groove 41 .

[0039] It should be noted that the rain gutter structure 43 is an existing funnel-shaped structure, which can facilitate water flow into the cylindrical groove 40, improve the drainage effect, and further improve the wet performance of the tire.

[0040] Specifically, the diameter R1 of the rain gutter structure 43 is 1 mm to 5 mm, and the depth ranges from 0.2 mm to 2 mm.

[0041] In order to further optimize the above technical solution, the diameter R1 of the rain gutter structure 43 is set to 3 mm, and the depth range is 0.5 mm.

[0042] In some embodiments, the width of the rainwater groove 41 ranges from 0.5 mm to 5 mm, and the depth ranges from 3 mm to 10 mm.

[0043] In order to further optimize the above technical solution, the width range of the rainwater groove 41 is 2 mm, and the depth range is 3 mm.

[0044] Through the above technical solution, it is possible to drain the tire while minimizing the loss of the tire's contact area, thereby ensuring friction and tire strength, and ensuring dry land performance.

[0045] In some embodiments, the diameter R2 of the cylindrical groove 40 is 1 mm to 3 mm, and the depth ranges from 2 mm to 10 mm.

[0046] In order to further optimize the above technical solution, the diameter R2 of the cylindrical groove 40 is set to 2 mm, and the depth range is 3 mm.

[0047] Through the above technical solution, it is possible to drain the tire while maximizing tire strength and ensuring dry land performance.

[0048] 1 and 2 , in order to further optimize the above technical solution, the angle between the rainwater groove 41 and the longitudinal groove 1 is in the range of 20° to 160°.

[0049] 1-2 , specifically, there are 1 to 4 rainwater grooves 41 , and the rainwater grooves 41 are distributed divergently on the tread block 3 .

[0050] 1-2 , in order to further optimize the above technical solution, the angles between adjacent rainwater grooves 41 are different and radial. Through the above technical solution, the strength of the tire can be guaranteed to the greatest extent, and the friction and grip in dry and wet conditions can be guaranteed, thereby improving safety.

[0051] 1-2 , in order to further optimize the above technical solution, four rainwater grooves 41 are provided, and two of them connect the cylindrical groove 40 and the longitudinal groove 1; the remaining two connect the cylindrical groove 40 and the transverse groove 2, and the two rainwater grooves 41 connecting the cylindrical groove 40 and the longitudinal groove 1 are spaced apart from the two rainwater grooves 41 connecting the cylindrical groove 40 and the transverse groove 2.

[0052] Through the above technical solution, the strength of the tire can be guaranteed to the greatest extent, the friction and grip in dry and wet conditions can be guaranteed, and safety can be improved.

[0053] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like to indicate orientations or positional relationships 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 limiting the present invention.

[0054] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0055] In the present invention, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection, or communication; direct connection or indirect connection through an intermediate medium; internal communication between two elements or interaction between two elements, unless otherwise specified. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0056] In the present invention, unless otherwise expressly specified or limited, when a first feature is "above" or "below" a second feature, it may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediary. Furthermore, when a first feature is "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0057] In the present invention, the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples" mean that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in any appropriate manner in any one or more embodiments or examples. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification, as well as features of different embodiments or examples, unless they are mutually inconsistent.

[0058] Although the embodiments of the present invention have been shown and described above, it will be understood that the above embodiments are illustrative and are not to be construed as limitations on the present invention. A person skilled in the art may change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. A tire with both dry and wet performance, characterized in that: include: A tire carcass, wherein a plurality of longitudinal grooves and a plurality of transverse grooves are arranged on the tread of the tire carcass, wherein the longitudinal grooves and the transverse grooves are connected and divide the tread of the tire carcass into a plurality of pattern blocks; and a siphon groove is arranged on the pattern blocks; The siphon groove includes a cylindrical groove, at least one rainwater groove and a drainage groove; the cylindrical groove is opened on the tread block; One end of the rainwater groove is connected to the cylindrical groove, and the other end is connected to the longitudinal groove or the transverse groove; the drainage groove is connected to the longitudinal groove and the cylindrical groove, and can collect rainwater on the surface of the pattern block to the cylindrical groove and discharge it into the longitudinal groove through the drainage groove.

2. The tire having both dry and wet performance according to claim 1, characterized in that: A plurality of rainwater grooves are provided, and the plurality of rainwater grooves respectively connect the columnar groove and the longitudinal groove, and the columnar groove and the transverse groove.

3. The tire having both dry and wet performance according to claim 2, characterized in that: There are a plurality of siphon grooves, which are respectively opened on each of the pattern blocks and are connected to the longitudinal pattern grooves through the drainage grooves.

4. The tire having both dry and wet performance according to claim 3, characterized in that: A rainwater gutter structure is formed at the top opening of the columnar groove, and the rainwater gutter structure is communicated with the rainwater groove.

5. The tire having both dry and wet performance according to claim 4, characterized in that: The diameter R1 of the rain gutter structure is 1mm to 5mm, and the depth ranges from 0.2mm to 2mm.

6. The tire having both dry and wet performance according to claim 5, characterized in that: The width of the rainwater groove ranges from 0.5 mm to 5 mm, and the depth ranges from 3 mm to 10 mm.

7. The tire having both dry and wet performance according to claim 5, characterized in that: The diameter R2 of the cylindrical groove is 1mm to 3mm, and the depth ranges from 2mm to 10mm.

8. The tire having both dry and wet performance according to claim 6, characterized in that: The angle between the rainwater groove and the longitudinal groove ranges from 20° to 160°.

9. The tire having both dry and wet performance according to claim 8, characterized in that: There are 1 to 4 rainwater grooves, and the rainwater grooves are distributed divergently on the pattern blocks.

10. The tire having both dry and wet performance according to claim 9, characterized in that: There are four rainwater grooves, and two of them connect the cylindrical groove and the longitudinal groove; the remaining two connect the cylindrical groove and the transverse groove, and the two rainwater grooves connecting the cylindrical groove and the longitudinal groove are spaced apart from the two rainwater grooves connecting the cylindrical groove and the transverse groove.

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