Low-noise high-moisture-resistance skiing tire

Abstract

The utility model relates to the technical field, and discloses a low-noise high-moisture-resistance skiing ground tire which comprises a tire tread, central pattern blocks distributed along the circumferential direction are arranged on the tire tread, crown pattern blocks are arranged on two sides of the central pattern blocks, shoulder pattern blocks are arranged on one sides of the crown pattern blocks close to a tire shoulder, and the shoulder pattern blocks are arranged on the other sides of the shoulder pattern blocks. The central pattern blocks and the crown pattern blocks are separated through main longitudinal pattern grooves in a broken line shape, a transverse pattern groove is formed between every two adjacent crown pattern blocks, one end of each transverse pattern groove is communicated with the corresponding main longitudinal pattern groove, and the other end of each transverse pattern groove extends towards the tire shoulder and separates every two adjacent shoulder pattern blocks; and the crown pattern blocks and the shoulder pattern blocks are separated by fold-line-shaped auxiliary longitudinal pattern grooves. The transverse pattern grooves, the main longitudinal pattern grooves and the auxiliary longitudinal pattern grooves are distributed in a V-shaped staggered mode and penetrate through one another, water can be stored and drained at the same time in the running process of the tire, and the wet land running drainage performance of the tire is integrally enhanced.

Description

Technical Field

[0001] The utility model relates to the technical field of tires, in particular to a low-noise and high-wet-resistant ski tire. Background Art

[0002] Due to global warming, there is less snow in Central Europe in winter, so the demand for highly anti-slip snow tires has increased. When the existing snow tires are driving on the road where the snow has melted, the water that has not completely melted is easily blocked in the grooves due to poor drainage performance, resulting in the grip and braking force not being able to meet the safety driving requirements, and prone to safety hazards such as side slipping. Therefore, it is necessary to develop a highly anti-slip snow tire suitable for driving on the road where the snow has melted. And with the increase in customer requirements for comfort, low-noise, comfortable, and highly anti-slip snow tires have become a hot spot in current research and development. Utility Model Content

[0003] The utility model aims to overcome the shortcomings of the prior art and provide a low-noise and high-wet-resistant ski tire, so that snow water can be discharged from the tire groove in time to avoid tire slippage, while taking into account low-noise and comfortable performance.

[0004] In order to achieve the above-mentioned purpose, the technical solution of the utility model is: a low-noise and high-wet-resistant ski tire, including a tread, the tread is provided with a central pattern block distributed along the circumferential direction, crown pattern blocks are provided on both sides of the central pattern block, and shoulder pattern blocks are provided on the side of the crown pattern block close to the shoulder, the central pattern block and the crown pattern block are separated by a main longitudinal pattern groove in the shape of a broken line, a transverse pattern groove is provided between two adjacent crown pattern blocks, one end of the transverse pattern groove is connected to the main longitudinal pattern groove, and the other end extends toward the shoulder and separates two adjacent shoulder pattern blocks, and the crown pattern block and the shoulder pattern block are separated by a secondary longitudinal pattern groove in the shape of a broken line.

[0005] Furthermore, the crown pattern blocks and shoulder pattern blocks located on both sides of the tread centerline are arranged in a mirror-image staggered manner about the tread centerline.

[0006] Furthermore; the crown block and the shoulder block between two adjacent transverse grooves connecting the main longitudinal groove corners constitute a block group, and the secondary longitudinal groove inside the block group is formed by staggered splicing of three inclined longitudinal groove segments with a staggered distance of 5mm, and the inclination angle of the groove wall on the side close to the shoulder of the tire is 7°, and the inclination angle of the groove wall on the other side is 5°.

[0007] Furthermore; the tread pattern structure is a variable pitch design, including three unequal pattern pitches arranged irregularly along the circumference of the tread, the three pattern pitches are respectively a first pitch P1, a second pitch P2 and a third pitch P3, and the lengths of the first pitch P1, the second pitch P2 and the third pitch P3 have the following relationship: P2 / P1=1.21±0.1, P3 / P2=1.21±0.1.

[0008] Furthermore, the angle α between the main longitudinal groove and the tread centerline is 25° to 60°.

[0009] Furthermore, the transverse grooves are connected to the main longitudinal grooves and the secondary longitudinal grooves in a V-shaped staggered manner.

[0010] Furthermore, a reinforcing platform is connected between the two main longitudinal grooves, the reinforcing platform is inclined and one end is connected to the corner of the main longitudinal groove, and the height of the reinforcing platform is 3mm.

[0011] Furthermore, a plurality of first grooves are staggeredly distributed on the left and right sides of the central pattern block, and the first grooves are arranged obliquely and one end of the first grooves is connected to the main longitudinal pattern grooves and the other end is closed.

[0012] Furthermore; a first slit is provided on the central tread block, a second slit is provided on the crown tread block, and a third slit is provided on the shoulder tread block, the depths of the first slit and the second slit are both 0.5 mm, the depth of the third slit is 0.6 mm, the spacing between the first slits is the same as the spacing between the second slits, the spacing between the third slits is wider than the spacing between the first slits, a fold line segment is provided in the middle of the first slit, the second slit and the third slit, the fold angle of the first slit fold line segment is the same as the fold angle of the second slit fold line segment, and the fold angle of the third slit fold line segment is greater than the fold angle of the first slit fold line segment.

[0013] Furthermore, one side of the main longitudinal groove and the secondary longitudinal groove is provided with an inclined second groove.

[0014] Beneficial effects of the utility model:

[0015] (1) The transverse grooves, the main longitudinal grooves and the secondary longitudinal grooves of the utility model are arranged in a V-shaped staggered pattern and penetrate each other. During the running of the tire, water can be retained and drained at the same time, thereby enhancing the drainage performance of the tire when running on wet land;

[0016] (2) The design of the first groove combined with the main longitudinal groove of the zigzag line makes the central pattern block 1 irregularly arranged, which can reduce the resonance of the tire during driving and thus reduce the tire noise;

[0017] (3) The tire pattern is a variable pitch design, including three unequal pattern pitches arranged irregularly along the circumference of the tread. The three pattern pitches are arranged in a disordered and irregular manner, making the tire pattern arrangement complicated and can minimize the resonance of the pattern;

[0018] (4) The groove walls on both sides of the secondary longitudinal groove are designed with different inclination angles to reduce noise. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of the tread pattern of the utility model;

[0020] Figure 2 It is a cross-sectional schematic diagram of the secondary longitudinal groove of the utility model;

[0021] Figure 3 It is a schematic cross-sectional view of the secondary longitudinal grooves with the same inclination angle of the groove walls on both sides;

[0022] Figure 4 It is a cross-sectional schematic diagram of the first knife groove of the utility model;

[0023] Figure 5 yes Figure 1 Enlarged view of part A in the middle;

[0024] Figure 6 is a schematic diagram of the local structure of the secondary longitudinal groove in comparative example 1;

[0025] Figure 7 It is a cross-sectional schematic diagram of the reinforcing platform of the utility model.

[0026] In the figure: 1, central pattern block; 2, crown pattern block; 3, shoulder pattern block; 4, main longitudinal pattern groove; 5, secondary longitudinal pattern groove; 51, longitudinal groove section; 6, transverse pattern groove; 7, reinforcement platform; 8, first groove; 9, first knife groove; 10, second knife groove; 11, third knife groove; 12, second groove. DETAILED DESCRIPTION

[0027] Embodiment 1:

[0028] like Figure 1 , Figure 4 and Figure 5As shown, a low-noise and high-wet-resistant ski tire includes a tread, wherein the tread is provided with a central pattern block 1 distributed along the circumferential direction, crown pattern blocks 2 are provided on both sides of the central pattern block 1, and shoulder pattern blocks 3 are provided on the side of the crown pattern block 2 close to the shoulder. The central pattern block 1 and the crown pattern block 2 are separated by a main longitudinal pattern groove 4 in the form of a broken line, and a transverse pattern groove 6 is provided between two adjacent crown pattern blocks 2, one end of the transverse pattern groove 6 is connected to the main longitudinal pattern groove 4, and the other end extends toward the shoulder and separates two adjacent shoulder pattern blocks 3, and the crown pattern block 2 and the shoulder pattern block 3 are separated by a secondary longitudinal pattern groove 5 in the form of a broken line.

[0029] The crown pattern blocks 2 and shoulder pattern blocks 3 located on both sides of the tread centerline are arranged in mirror images and staggered with respect to the tread centerline. The tread pattern structure is a variable pitch design, including three unequal pattern pitches arranged irregularly along the circumference of the tread, the three pattern pitches are the first pitch P1, the second pitch P2 and the third pitch P3, and the lengths of the first pitch P1, the second pitch P2 and the third pitch P3 have the following relationship: P2 / P1=1.21±0.1, P3 / P2=1.21±0.1.

[0030] The crown pattern block 2 and the shoulder pattern block 3 between two adjacent transverse pattern grooves 6 at the corners of the main longitudinal pattern grooves 4 form a pattern block group. The secondary longitudinal pattern groove 5 inside the pattern block group is formed by staggered splicing of three inclined longitudinal groove segments 51, with a staggered distance of 5 mm. The inclination angle of the groove wall of the secondary longitudinal pattern groove 5 on one side close to the shoulder is 7°, and the inclination angle of the groove wall on the other side is 5°. Figure 2 shown.

[0031] Table 1 below shows the effect of the groove wall inclination angles on both sides of the secondary longitudinal groove 5 on the tire noise level.

[0032] Table 1

[0033] Secondary longitudinal groove section Noise(dB) Multiple angles (5° and 7° on both sides) 72 Same angle (5° for both measurements, e.g. Figure 3 (shown) 73

[0034] It can be seen from Table 1 that when the inclination angles of the groove walls on both sides of the secondary longitudinal groove 5 are different, the noise can be reduced.

[0035] The transverse grooves 6 are connected to the main longitudinal grooves 4 and the secondary longitudinal grooves 5 in a V-shaped staggered manner, which can greatly improve the water retention and drainage performance of the tire.

[0036] A reinforcing platform 7 is connected between the two main longitudinal grooves 4. The reinforcing platform 7 is inclined and one end is connected to the corner of the main longitudinal groove 4. The height of the reinforcing platform 7 is 3 mm. Figure 7 The height of the reinforcement platform 7 is lower than the height of the central pattern block 1 on the tread. The arrangement of the reinforcement platform 7 can improve the tire center rigidity and comfort while taking into account high drainage performance.

[0037] The central pattern block 1 is staggered with a plurality of first grooves 8, which are arranged obliquely and connected to the main longitudinal groove 4 at one end and closed at the other end. The first grooves 8 are combined with the design of the main longitudinal groove 4 to make the central pattern block 1 irregularly arranged, which can reduce the resonance of the tire during driving and thus reduce tire noise.

[0038] A second groove 12 arranged obliquely is disposed on one side of the main longitudinal groove 4 and the secondary longitudinal groove 5 .

[0039] The central pattern block 1 is provided with a first sipe 9, the crown pattern block 2 is provided with a second sipe 10, and the shoulder pattern block 3 is provided with a third sipe 11. The depths of the first sipe 9 and the second sipe 10 are both 0.5 mm, and the depth of the third sipe 11 is 0.6 mm. The spacing between the first sipes 9 is the same as the spacing between the second sipes 10, and the spacing between the third sipes 11 is wider than the spacing between the first sipes 9. A fold line segment is provided in the middle of the first sipe 9, the second sipe 10 and the third sipe 11, and the fold angle of the fold line segment of the first sipe 9 is the same as the fold angle of the fold line segment of the second sipe 10, and the fold angle of the fold line segment of the third sipe 11 is greater than the fold angle of the fold line segment of the first sipe 9. The inclination angles of the first sipe 9, the second sipe 10 and the third sipe 11 are all different, which can ensure that the sipes cut the water film from different directions and enhance the wet performance of the tire. At the same time, the wide spacing and large angle design of the third sipe 11 can increase the contact area at the shoulder of the tire and enhance the steering grip and driving comfort.

[0040] The angle α between the main longitudinal groove and the tread centerline is 35°.

[0041] Table 2 below shows the influence of the range of values ​​of the angle α on the wet skid performance and noise level of the tire.

[0042] Table 2

[0043] Angle α Wet performance Noise(dB) 25° 89 73 35° 93 72 45° 91 72 60° 88 74

[0044] It can be seen from Table 2 that when the angle α between the main longitudinal groove and the tread centerline is 35°, the wet skid performance and noise reach the best matching state.

[0045] Comparative Example 1:

[0046] The difference from the first embodiment is that the secondary longitudinal grooves 5 inside the pattern block group are formed by three inclined longitudinal groove segments 51 connected without dislocation. Figure 6 shown.

[0047] Table 3 below shows the effects of the two splicing methods of the longitudinal groove segments 51 of Example 1 and Comparative Example 1 on the noise and comfort of the tire.

[0048] Table 3

[0049] Longitudinal groove section Noise(dB) Comfort Staggered splicing (Example 1) 72 92 No dislocation splicing (Comparative Example 1) 73 87

[0050] It can be seen from Table 3 that when the longitudinal groove sections inside the pattern block group are arranged in a staggered splicing arrangement, the noise value is smaller and the comfort is better than that of the non-staggered splicing arrangement.

[0051] The above-described embodiments are only preferred solutions of the present invention and are not intended to limit the present invention in any form. Other variations and modifications are possible without exceeding the technical solutions described in the claims.

[0052] In the description of the present invention, it is necessary to understand that the terms indicating orientation or positional relationship are based on the orientation or positional relationship shown in the 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 cannot be understood as a limitation on the present invention.

Claims

1. A low-noise and high-wet-resistance ski tire, comprising a tread, characterized in that: The tread is provided with a central pattern block distributed along the circumferential direction, crown pattern blocks are provided on both sides of the central pattern block, shoulder pattern blocks are provided on the side of the crown pattern block close to the shoulder, the central pattern block and the crown pattern block are separated by a main longitudinal pattern groove in the shape of a broken line, a transverse pattern groove is provided between two adjacent crown pattern blocks, one end of the transverse pattern groove is connected to the main longitudinal pattern groove, and the other end extends toward the shoulder and separates two adjacent shoulder pattern blocks, and the crown pattern block and the shoulder pattern block are separated by a secondary longitudinal pattern groove in the shape of a broken line.

2. The low-noise and high-wet-resistance ski tire according to claim 1, characterized in that: The crown pattern blocks and shoulder pattern blocks located on both sides of the tread centerline are arranged in a mirror-image manner with respect to the tread centerline.

3. The low-noise and high-wet-resistance ski tire according to claim 1, characterized in that: The crown block and the shoulder block between two adjacent transverse grooves connecting the corners of the main longitudinal grooves form a block group. The secondary longitudinal grooves inside the block group are formed by staggered splicing of three inclined longitudinal groove segments with a staggered distance of 5 mm. The inclination angle of the groove wall of the secondary longitudinal groove close to the shoulder side is 7°, and the inclination angle of the groove wall on the other side is 5°.

4. The low-noise and high-wet-resistance ski tire according to claim 1, characterized in that: The tread pattern structure is a variable pitch design, including three unequal pattern pitches arranged irregularly along the circumference of the tread, the three pattern pitches are respectively a first pitch P1, a second pitch P2 and a third pitch P3, and the lengths of the first pitch P1, the second pitch P2 and the third pitch P3 have the following relationship: P2 / P1=1.21±0.1, P3 / P2=1.21±0.

1.

5. The low-noise and high-wet-resistance ski tire according to claim 1, characterized in that: The angle α between the main longitudinal groove and the tread centerline is 25° to 60°.

6. The low-noise and high-wet-resistance ski tire according to claim 1, characterized in that: The transverse grooves are connected to the main longitudinal grooves and the secondary longitudinal grooves in a V-shaped staggered manner.

7. The low-noise and high-wet-resistance ski tire according to claim 1, characterized in that: A reinforcing platform is connected between the two main longitudinal grooves. The reinforcing platform is inclined and one end is connected to the corner of the main longitudinal groove. The height of the reinforcing platform is 3 mm.

8. The low-noise and high-wet-resistance ski tire according to claim 1, characterized in that: A plurality of first grooves are staggeredly distributed on the central pattern block. The first grooves are arranged obliquely and one end of the first grooves is connected to the main longitudinal pattern groove and the other end is closed.

9. The low-noise and high-wet-resistance ski tire according to claim 1, characterized in that: The central tread block is provided with a first sipe, the crown tread block is provided with a second sipe, and the shoulder tread block is provided with a third sipe. The depths of the first sipe and the second sipe are both 0.5 mm, and the depth of the third sipe is 0.6 mm. The spacing between the first sipes is the same as the spacing between the second sipes, and the spacing between the third sipes is wider than the spacing between the first sipes. A fold line segment is provided in the middle of the first sipe, the second sipe and the third sipe. The fold angle of the first sipe fold line segment is the same as the fold angle of the second sipe fold line segment, and the fold angle of the third sipe fold line segment is greater than the fold angle of the first sipe fold line segment.

10. The low-noise and high-wet-resistance ski tire according to claim 1, characterized in that: One side of the main longitudinal groove and the secondary longitudinal groove is provided with an inclined second groove.

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