Safe and environment-friendly summer UHP tire
By optimizing the tread structure design, including narrow longitudinal grooves, a gradually disappearing cut structure, and anti-slip connecting keys, the problems of insufficient handling stability and wet grip of tires in new energy vehicles have been solved, resulting in lower rolling resistance and longer service life.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANDONG LINGLONG RUBBER TECHNOLOGY CO LTD
- Filing Date
- 2025-05-30
- Publication Date
- 2026-05-15
AI Technical Summary
Existing summer UHP tires have issues with insufficient handling stability and wet grip in new energy vehicles, and have failed to effectively reduce rolling resistance.
The tire features an optimized tread structure design, including narrow longitudinal grooves, a fading cut structure, and anti-skid connecting keys. Combined with a 3D steel plate design and optimized pitch arrangement, it improves tread block rigidity and wet grip, while reducing wear and noise.
It improves the handling stability and wet grip of new energy vehicles, reduces rolling resistance, extends tire life and reduces energy loss.
Smart Images
Figure CN224240756U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of tire technology, and in particular to a safe and environmentally friendly summer UHP tire. Background Technology
[0002] With the continuous development of the new energy vehicle market, vehicle safety, comfort, and handling have become essential guarantees for consumers seeking high-quality driving experiences. Simultaneously, reducing rolling resistance has become a trend to ensure driving range. This places higher demands on tire tread pattern structure and tire performance.
[0003] Greater handling stability: New energy vehicles rely on electric motors for power drive, resulting in rapid power response and higher requirements for tire safety and handling stability.
[0004] Higher requirements for slipperiness: For the European market, there are higher requirements for handling and grip on wet roads, as well as higher requirements for wet safety performance;
[0005] Based on this, a safe and environmentally friendly summer UHP tire is now provided, which can eliminate the drawbacks of existing devices. Utility Model Content
[0006] The purpose of this invention is to provide a safe and environmentally friendly summer UHP tire, which solves the problem of inconvenience in the use of existing technologies.
[0007] To achieve the above objectives, this utility model provides the following technical solution:
[0008] A safe and environmentally friendly summer UHP tire includes a tread structure, which includes a first rib structure, a second rib structure, a third rib structure, a fourth rib structure, a fifth rib structure (14) in the circumferential direction and a first circumferential groove, a second circumferential groove, a third circumferential groove, and a fourth circumferential groove.
[0009] The first rib structure and the fifth rib structure are located on the tire shoulder; the second rib structure and the fourth circumferential groove of the third rib structure are located on the outer side of the tire.
[0010] The first rib structure has a first transverse groove that divides it into a first patterned block; the second rib structure has a first transverse groove that divides it into a second patterned block; the third rib structure has a second transverse groove that divides it into a third patterned block; the fourth rib structure has a third transverse groove that divides it into a fourth patterned block; and the fifth rib structure has a second transverse groove that divides it into a fifth patterned block.
[0011] Based on the above technical solutions, this utility model also provides the following optional technical solutions:
[0012] In one alternative: the width of the fourth circumferential groove between the fourth rib structure and the fifth rib structure is no greater than 6.1 mm, and the radial depth is no greater than 7.5 mm; the serrated "gradual cutting structure" of the fourth circumferential groove has a radial cutting depth of no greater than 2 mm, and the angle γ between the serrated shape and the tire circumference is in the range of 2 to 5°.
[0013] In one alternative embodiment: the first lateral groove, the second lateral groove, the second lateral slit, the second middle lateral slit, and the third middle lateral slit on the tire shoulder are designed with a "gradual fading cutting structure"; wherein the radial depth of the "gradual fading cutting structure" of the first lateral groove and the second lateral groove is within the range of no more than 1.5 mm; and the radial depth of the "gradual fading cutting structure" of the second lateral slit, the second middle lateral slit, and the third middle lateral slit is within the range of no more than 2 mm.
[0014] In one alternative: the second lateral sipe, the second middle lateral sipe, and the third middle lateral sipe are provided with "anti-slip connecting keys" at both ends. The length of the anti-slip connecting key in the lateral direction of the tread is no more than 3 mm, and the depth in the radial direction of the tire is no more than 2 mm.
[0015] In one alternative design: the second transverse groove, the second middle transverse groove, and the third middle transverse groove are designed with 3D steel sheets, the cross-sectional shape of which is wavy with a fluctuation range of 1.74mm.
[0016] In one alternative: the direction and arrangement of the lateral grooves on the tread shoulder, the misalignment and optimized angle of the upper and lower shoulder lateral grooves, the angle α of the first lateral groove ranging from 80 to 90°, and the angle β of the second lateral groove ranging from 80 to 90°, are used to reduce noise and are related to the tire's PRAT performance.
[0017] In one alternative: when the circumferential pitches of the tread are arranged, a multi-layered variable pitch arrangement is adopted; the upper shoulder A and lower shoulder C adopt an arrangement with a total number of pitches of not less than 70 and a pitch type of not less than 4, while the middle tread block B adopts an arrangement with a total number of pitches of not less than 35 and a pitch type of not less than 6.
[0018] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0019] 1. The optimized outer tread pattern design, with narrower longitudinal grooves, increases the contact area between the outer tread and the ground. This allows the tread blocks to interact during vehicle cornering, increasing the rigidity of the tread blocks and improving instantaneous grip. On the other hand, it effectively disperses the pressure on the outer shoulder, preventing excessive pressure on the outer side from causing abnormal tread wear. This improves the tire's grip performance and cornering stability to cope with the instantaneous torque of new energy vehicles.
[0020] 2. Optimized tread groove shape: The tire tread has four longitudinal grooves, two lateral shoulder grooves, and several lateral sipes in the middle of the tire; the serrated "gradual cutting structure" of the longitudinal grooves can effectively cut water film and improve the friction between the tire outer side and the ground; the "gradual cutting structure" of the lateral grooves and lateral sipes can effectively cut the water film on the road surface and improve the overall wet grip of the tire tread. Attached Figure Description
[0021] Figure 1 This is a front view of the tire tread of this utility model.
[0022] Figure 2 This is a schematic diagram of the fading cutting structure of this utility model.
[0023] Figure 3 This is a cross-sectional view of the gradually disappearing cutting structure of this utility model.
[0024] Figure 4 This is a cross-sectional view of the anti-slip connection key structure of this utility model.
[0025] Figure 5 This is a 3D cross-sectional view of the steel sheet structure of this utility model.
[0026] Figure 6 This is an illustration of the pitch arrangement and shoulder groove of this utility model. Detailed Implementation
[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0028] like Figures 1-6 As shown, a safe and environmentally friendly summer UHP tire includes a tread structure, which includes a first rib structure 10, a second rib structure 11, a third rib structure 12, a fourth rib structure 13, a fifth rib structure 14 in the circumferential direction, and a first circumferential groove 1, a second circumferential groove 2, a third circumferential groove 3, and a fourth circumferential groove 4.
[0029] The first rib structure 10 and the fifth rib structure 14 are located on the tire shoulder; the second rib structure 11, the third rib structure 12, and the fourth rib structure 13 are located in the middle of the tire; the first circumferential groove 1 is located on the inner side of the tire; and the fourth circumferential groove 4 is located on the outer side of the tire.
[0030] The first rib structure 10 has a first transverse groove 15 that divides it into a first patterned block 5; the second rib structure 11 has a first transverse groove 16 that divides it into a second patterned block 6; the third rib structure 12 has a second transverse groove 17 that divides it into a third patterned block 7; the fourth rib structure 13 has a third transverse groove 18 that divides it into a fourth patterned block 8; and the fifth rib structure 14 has a second transverse groove 20 that divides it into a fifth patterned block 9.
[0031] The width of the fourth circumferential groove 4 between the fourth rib structure 13 and the fifth rib structure 14 is within the range of no more than 6.1 mm, and the radial depth is within the range of no more than 7.5 mm; the radial cutting depth of the sawtooth-shaped "gradually disappearing cutting structure"⑥ of the fourth circumferential groove 4 is within the range of no more than 2 mm, and the angle γ between the sawtooth shape and the tire circumference is within the range of 2 to 5°.
[0032] The first lateral groove 15, the second lateral groove 20, the first central lateral groove 17, the second central lateral groove 18, and the third central lateral groove 19 on the tire shoulder are designed with "gradually disappearing cutting structures" ①-⑤; wherein the radial depth of the "gradually disappearing cutting structures" ① and ④ of the first lateral groove 15 and the second lateral groove 20 is within the range of no more than 1.5 mm; and the radial depth of the "gradually disappearing cutting structures" ②, ③, and ⑤ of the second lateral groove 17, the second central lateral groove 18, and the third central lateral groove 19 is within the range of no more than 2 mm.
[0033] The second transverse sipe 17, the second middle transverse sipe 18, and the third middle transverse sipe 19 are provided with "anti-slip connecting keys" at both ends. The length of the connecting key in the transverse direction of the tread is no more than 3 mm, and the depth in the radial direction of the tire is no more than 2 mm.
[0034] The first central transverse groove 17, the second central transverse groove 18, and the third central transverse groove 19 are designed with 3D steel sheets. The cross-sectional shape of the 3D steel sheets is wavy, and the fluctuation range is within 1.74mm.
[0035] The direction and arrangement of the lateral grooves on the shoulder of the tread, the misalignment and optimized angle of the lateral grooves on the upper and lower shoulders, the angle α of the first lateral groove 15 is in the range of 80 to 90°, and the angle β of the lower shoulder lateral groove 20 is in the range of 80 to 90°. These are used to reduce noise and are related to the tire's PRAT performance.
[0036] When arranging the circumferential pitches of the tire tread, a multi-layered variable pitch arrangement is adopted; the upper shoulder A and lower shoulder C adopt an arrangement with a total number of pitches of not less than 70 and a pitch type of not less than 4, while the middle tread block B adopts an arrangement with a total number of pitches of not less than 35 and a pitch type of not less than 6.
[0037] The optimized outer tread pattern design, with narrower longitudinal grooves, increases the contact area between the outer tread and the ground. This allows the tread blocks to interact during vehicle cornering, increasing the rigidity of the tread blocks and improving instantaneous grip. On the other hand, it effectively disperses the pressure on the outer shoulder, preventing excessive pressure on the outer side from causing abnormal tread wear. This improves the tire's grip performance and cornering stability to cope with the instantaneous torque of new energy vehicles.
[0038] The optimized tread groove shape features four longitudinal grooves, two lateral shoulder grooves, and several lateral sipes in the center of the tire. The serrated "gradual cutting structure" of the longitudinal grooves effectively cuts through the water film, increasing the friction between the tire's outer side and the ground. The "gradual cutting structure" of the lateral grooves and lateral sipes effectively cuts through the water film on the road surface, improving the overall wet grip of the tire.
[0039] The optimized profile and lateral sipes reduce the overall contact area between the tire and the ground, thereby reducing rolling resistance. The lateral sipes adopt a self-locking 3D steel sheet design and are equipped with "anti-slip connection keys" at both ends to connect the tread blocks, effectively reducing the deformation of the tread blocks and increasing the rigidity of the middle rib, thereby improving rolling resistance performance, reducing losses and energy consumption.
[0040] The optimized pitch arrangement, with the tire circumferential pitch layout using a segmented variable pitch arrangement, achieves low tire noise through simulation analysis and optimization of upper and lower shoulder groove misalignment and angle.
[0041] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A safe and environmentally friendly summer UHP tire, characterized in that: The tread structure includes a first rib structure (10), a second rib structure (11), a third rib structure (12), a fourth rib structure (13), a fifth rib structure (14) in the circumferential direction, and a first circumferential groove (1), a second circumferential groove (2), a third circumferential groove (3), and a fourth circumferential groove (4). The first rib structure (10) and the fifth rib structure (14) are located on the tire shoulder; the second rib structure (11), the third rib structure (12), and the fourth rib structure (13) are located in the middle of the tire; the first circumferential groove (1) is located on the inner side of the tire; and the fourth circumferential groove (4) is located on the outer side of the tire. The first rib structure (10) is divided into a first patterned block (5) by a first transverse groove (15); the second rib structure (11) is divided into a second patterned block (6) by a first transverse slit (16); the third rib structure (12) is divided into a third patterned block (7) by a second transverse slit (17); the fourth rib structure (13) is divided into a fourth patterned block (8) by a third transverse slit (18); and the fifth rib structure (14) is divided into a fifth patterned block (9) by a second transverse groove (20).
2. The safe and environmentally friendly summer UHP tire according to claim 1, characterized in that, The width of the fourth circumferential groove (4) between the fourth rib structure (13) and the fifth rib structure (14) is within the range of no more than 6.1 mm, and the radial depth is within the range of no more than 7.5 mm; the serrated "gradual cutting structure" of the fourth circumferential groove (4) has a radial cutting depth within the range of no more than 2 mm, and the angle γ between its serrated shape and the tire circumference is within the range of 2 to 5°.
3. The safe and environmentally friendly summer UHP tire according to claim 1, characterized in that: The first lateral groove (15), second lateral groove (20), second lateral slit (17), second middle lateral slit (18), and third middle lateral slit (19) of the tire shoulder are designed with a "gradual fading cutting structure"; wherein the radial depth of the "gradual fading cutting structure" of the first lateral groove (15) and the second lateral groove (20) is within the range of no more than 1.5 mm; and the radial depth of the "gradual fading cutting structure" of the second lateral slit (17), the second middle lateral slit (18), and the third middle lateral slit (19) is within the range of no more than 2 mm.
4. The safe and environmentally friendly summer UHP tire according to claim 1, characterized in that, The second transverse groove (17), the second middle transverse groove (18), and the third middle transverse groove (19) are provided with "anti-slip connecting keys" at both ends. The length of the anti-slip connecting key in the transverse direction of the tread is no more than 3 mm, and the depth in the radial direction of the tire is no more than 2 mm.
5. The safe and environmentally friendly summer UHP tire according to claim 1, characterized in that, The second transverse groove (17), the second middle transverse groove (18), and the third middle transverse groove (19) are designed with 3D steel sheets. The cross-sectional shape of the 3D steel sheets is wavy, and the fluctuation range is within 1.74mm.
6. The safe and environmentally friendly summer UHP tire according to claim 1, characterized in that, The direction and arrangement of the lateral grooves on the shoulder of the tread, the misalignment and optimization angle of the lateral grooves on the upper and lower shoulders, the angle α of the first lateral groove (15) is in the range of 80 to 90°, and the angle β of the second lateral groove (20) is in the range of 80 to 90°, which are used to reduce noise and are related to the tire PRAT performance.
7. The safe and environmentally friendly summer UHP tire according to claim 1, characterized in that, When arranging the circumferential pitches of the tire tread, a multi-layered variable pitch arrangement is adopted; the upper shoulder A and lower shoulder C adopt an arrangement with a total number of pitches of not less than 70 and a pitch type of not less than 4, while the middle tread block B adopts an arrangement with a total number of pitches of not less than 35 and a pitch type of not less than 6.