Tire capable of improving wet grip performance and operation stability
By designing specific tread patterns in the center, transition, and shoulder areas, the longitudinal rigidity of the tire is enhanced and the risk of shimmy is reduced, solving the problem of insufficient grip and handling stability on wet and slippery roads and achieving better driving stability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANDONG LINGLONG TIRE CO LTD
- Filing Date
- 2025-05-16
- Publication Date
- 2026-05-15
AI Technical Summary
Existing tire tread patterns lack sufficient grip and handling stability on wet and slippery roads, and are prone to lateral swaying, especially on low-traction surfaces, which affects the driving experience.
Design a tire tread structure including a center area, a transition area and a shoulder area. Employ variable-angle zigzag tread main grooves, tilt angles and reinforcing bosses to enhance the longitudinal rigidity of the tread and reduce the risk of shimmy by adjusting the spacing of the lateral sipes.
It improves the tire's grip and handling performance on wet and slippery roads, reduces the risk of lateral shimmy, and enhances driving stability.
Smart Images
Figure CN224240751U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of tire tread technology, specifically a tire that improves wet grip and handling stability. Background Technology
[0002] Tire tread patterns ensure that water is expelled from the tread grooves when driving on wet roads, preventing a water film between the tire and the ground, thus preventing tire slippage and improving traction. There are three basic types of tire tread patterns: longitudinal, lateral, and mixed. Longitudinal tread patterns offer strong water drainage and are beneficial for tire heat dissipation, improving vehicle handling stability, but they lack sufficient grip. Lateral tread patterns provide strong grip but have poor water drainage, and while they increase the contact area with the ground, they are noisier and less quiet. Mixed tread patterns combine the advantages of both longitudinal and lateral patterns, but their overall performance is relatively mediocre.
[0003] Existing tire tread patterns generally improve wet grip and handling by increasing the lateral sipes' ability to hold water and thus increasing the tire's hydroplaning speed. However, on adhesive water film surfaces with a water film thickness of <2mm, tire grip and handling are more related to the tread pattern's ability to puncture the water film. This ability is positively correlated with the tire's longitudinal stiffness. Furthermore, when steering on low-traction surfaces, the tire may experience lateral shimmy near its slip limit, which can significantly impact the driver's experience.
[0004] Based on this, a tire that improves wet grip and handling performance is now provided, eliminating the drawbacks of existing devices. Utility Model Content
[0005] The purpose of this invention is to provide a tire that improves wet grip and handling performance, thereby solving the problems in the prior art.
[0006] To achieve the above objectives, this utility model provides the following technical solution:
[0007] A tire designed to improve wet grip and handling performance includes a center area, transition areas symmetrically arranged on both sides of the center area, a shoulder area on one side of the transition area, a main tread groove between the center area and the transition area, a side tread groove between the transition area and the shoulder area, and lateral sipes in the center area, transition area, and shoulder area.
[0008] Based on the above technical solutions, this utility model also provides the following optional technical solutions:
[0009] In one alternative: the main groove of the pattern adopts a variable-angle tortuous pattern, and the depth G of the main groove of the pattern ranges from 15 to 18 mm.
[0010] In one alternative: the bottom of the main groove of the pattern near the transition zone is provided with an inclination angle of 10°.
[0011] In one alternative: the bottom of the patterned groove near the transition area is provided with an inclination angle of 10°.
[0012] In one alternative: the patterned groove is provided with a reinforcing boss.
[0013] In one alternative: the height of the reinforcing boss is G1 = (1 / 3 to 1 / 4)G, and the distance W1 between the center of the reinforcing boss and the outer side of the patterned groove is greater than the distance W2 between the center of the reinforcing boss and the inner side of the patterned groove.
[0014] In one alternative: the transverse groove depth G2 = (0.5~0.8)G, and the transverse groove thickness <1mm.
[0015] In one alternative: the spacing between the transverse grooves in the central area is less than the spacing between the transverse grooves in the transition area.
[0016] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0017] This invention increases the thickness of the rubber material at the bottom of the transition zone ribs by setting a 10° inclination angle at the bottom of the main groove and the side groove of the pattern, as well as reinforcing bosses in the side groove of the pattern. This improves the longitudinal rigidity of the pattern in the transition zone. At the same time, by making the spacing of the transverse slits in the central area smaller than that in the transition zone, the rigidity of the pattern ribs in the transition zone is reduced while ensuring sufficient longitudinal deformation, thereby reducing the risk of oscillation. Attached Figure Description
[0018] Figure 1 This is a schematic diagram of the structure of this utility model.
[0019] Figure 2 This is a schematic diagram of the main groove of the pattern in this utility model.
[0020] Figure 3 This is a schematic diagram of the patterned groove structure in this utility model.
[0021] Figure 4 This is a schematic diagram of the transverse knife groove in this utility model.
[0022] Attached diagram annotations: 1. Central area; 2. Transition area; 3. Shoulder area; 4. Main tread groove; 5. Side tread groove; 51. Reinforcing boss; 6. Transverse sipe. Detailed Implementation
[0023] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments.
[0024] In one embodiment, such as Figure 1 As shown, a tire designed to improve wet grip and handling performance includes a central area 1, transition areas 2 symmetrically arranged on both sides of the central area 1, a shoulder area 3 on one side of the transition area 2, a main tread groove 4 between the central area 1 and the transition area 2, a side tread groove 5 between the transition area 2 and the shoulder area 3, and lateral sipes 6 in the central area 1, the transition area 2 and the shoulder area 3. The tread pattern composed of the main tread groove 4, the side tread groove 5 and the lateral sipes 6 together improves the wet grip and handling performance of the tire.
[0025] In one embodiment, such as Figure 1 and Figure 2 As shown, the main groove 4 adopts a variable angle zigzag pattern, and the depth G of the main groove 4 ranges from 15 to 18 mm.
[0026] In one embodiment, such as Figure 2 As shown, the bottom of the main groove 4 near the transition zone has an inclined angle of 10°, which can increase the thickness of the rubber material at the bottom of the transition zone 2 rib and improve the longitudinal rigidity of the transition zone 2 rib.
[0027] In one embodiment, such as Figure 3 As shown, the bottom of the patterned groove 5 near the transition zone has an inclined angle of 10°, which can increase the thickness of the rubber material at the bottom of the transition zone 2 rib and improve the longitudinal rigidity of the transition zone 2 rib.
[0028] In one embodiment, such as Figure 1 and Figure 3 As shown, a reinforcing boss 51 is provided inside the patterned groove 5.
[0029] In one embodiment, such as Figure 3 As shown, the height G1 of the reinforcing boss 51 is (1 / 3 to 1 / 4)G, and the distance W1 between the center of the reinforcing boss 51 and the outer side of the tread groove 5 is greater than the distance W2 between the center of the reinforcing boss 51 and the inner side of the tread groove 5. When the tire is subjected to lateral force, the reinforcing boss 51 provides support for the ribs in the transition area 2, thereby improving the longitudinal rigidity of the ribs in the transition area 2.
[0030] In one embodiment, such as Figure 4 As shown, the depth of the lateral sipe 6, G2, is (0.5~0.8)G, and the thickness of the lateral sipe 6 is <1mm. This is to avoid the problem that an excessively wide lateral sipe 6 would cause the tire tread to deform and detach from the ground when the tire is subjected to a large longitudinal force, thereby reducing the tire's dry and wet grip performance.
[0031] In one embodiment, the spacing of the transverse grooves 6 in the central region 1 is less than the spacing of the transverse grooves 6 in the transition region 2, so as to reduce the rigidity of the patterned ribs in the transition region 2 and reduce the risk of oscillation while ensuring sufficient longitudinal deformation.
[0032] The above embodiments disclose a tire that improves wet grip and handling performance. By setting a 10° tilt angle at the bottom of the main tread groove 4 and the side tread groove 5, and reinforcing bosses 51 in the side tread groove 5, the rubber thickness at the bottom of the ribs in the transition zone 2 is increased, thereby improving the longitudinal rigidity of the tread pattern in the transition zone 2. At the same time, by making the spacing of the transverse sipes 6 in the central zone 1 smaller than that in the transition zone 2, the rigidity of the tread ribs in the transition zone 2 is reduced while ensuring sufficient longitudinal deformation, thereby reducing the risk of shimmy.
[0033] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.
Claims
1. A tire that improves wet grip and handling stability, characterized in that, It includes a central area (1), a transition area (2) symmetrically arranged on both sides of the central area (1), a shoulder area (3) arranged on one side of the transition area (2), a main tread groove (4) between the central area (1) and the transition area (2), a side tread groove (5) between the transition area (2) and the shoulder area (3), and a transverse slit groove (6) in the central area (1), the transition area (2) and the shoulder area (3).
2. The tire for improving wet grip and handling stability according to claim 1, characterized in that, The main groove (4) of the pattern adopts a variable angle tortuous pattern, and the depth G of the main groove (4) is in the range of 15 to 18 mm.
3. The tire for improving wet grip and handling stability according to claim 2, characterized in that, The bottom of the main groove (4) near the transition zone is provided with an inclination angle of 10°.
4. The tire for improving wet grip and handling stability according to claim 1, characterized in that, The bottom of the patterned groove (5) near the transition zone has an inclined angle of 10°.
5. The tire for improving wet grip and handling stability according to claim 1, characterized in that, The patterned side groove (5) is provided with a reinforcing boss (51).
6. A tire for improving wet grip and handling stability according to claim 5, characterized in that, The height of the reinforcing boss (51) is G1 = (1 / 3 to 1 / 4)G, and the distance W1 between the center of the reinforcing boss (51) and the outer side of the patterned groove (5) is greater than the distance W2 between the center of the reinforcing boss (51) and the inner side of the patterned groove (5).
7. The tire for improving wet grip and handling stability according to claim 1, characterized in that, The depth of the transverse groove (6) is G2 = (0.5~0.8)G, and the thickness of the transverse groove (6) is <1mm.
8. The tire for improving wet grip and handling stability according to claim 1, characterized in that, The spacing of the transverse cutter grooves (6) in the central area (1) is less than the spacing of the transverse cutter grooves (6) in the transition area (2).