Snow tire pattern for high mileage

Abstract

This utility model belongs to the field of vehicle tire tread technology, specifically relating to a high-mileage snow-driving tire tread pattern. A high-mileage snow-driving tire tread pattern includes a tread pattern comprising a central tread ring and a shoulder. Tread grooves are provided between the central tread ring and the shoulder. The central tread ring includes three tread rings, and tread grooves are provided between adjacent tread rings. The tread rings are composed of tread blocks arranged at intervals along the circumference of the tread, and adjacent tread blocks are connected by reinforcing ribs. The tread grooves are all closed fold lines along the circumference of the tire, and the closed fold lines are composed of repeating fold line units. The direction of the fold lines of the tread grooves is parallel to the edges of adjacent tread rings, and the inward protrusions of the fold lines correspond to the reinforcing ribs of adjacent tread rings. By optimizing the structure of the tread grooves, different fillet radii are used at the bottom of the same tread groove, which can improve drainage performance and thus increase tire grip.

Description

Technical Field

[0001] This utility model belongs to the field of vehicle tire tread technology, specifically relating to a high-mileage snow driving tire tread. Background Technology

[0002] With the steady growth of car ownership and the continuous improvement of road infrastructure, the market's requirements for tire performance are becoming increasingly stringent. To meet the needs of customers in the North American and Mexican markets, improving tire mileage, wet grip, and fuel efficiency is urgently needed.

[0003] Practice has shown that, with the tire compound system remaining unchanged, the tire tread pattern has a significant impact on tire mileage and anti-skid performance. Therefore, research on tire tread pattern design to improve anti-skid performance and mileage has important theoretical significance and engineering application value.

[0004] Based on existing technical experience, by balancing the tire tread grooves and tread saturation, optimizing the size of the tread strips and the balance between the tread blocks and steel sheets, this tire tread pattern not only effectively saves fuel and enhances the driving and braking force of the vehicle on harsh and slippery roads, but also achieves uniform distribution of tread wear, effectively extending the tire's service life.

[0005] Utility model patent CN 219360759 U discloses a tire tread pattern. The main tread block of this pattern is hexagonal, with a first steel sheet running transversely through the block and second steel sheets symmetrically arranged on either side of the first steel sheet. Both the first and second steel sheets are 3D steel sheets. While this arrangement can reduce tire rolling resistance, the wavy edges of the steel sheets are prone to stress concentration, which may accelerate cracking at the tread block edges with long-term use, and high-speed water drainage efficiency may be insufficient. Therefore, there is a need to design a tire tread pattern suitable for high-mileage driving in snow, achieving a balance between low rolling resistance and wet-weather performance, and improving the tire's anti-skid ability, wear resistance, and driving force. Utility Model Content

[0006] In response to the technical problems that current tires need to improve in terms of wet skid resistance, wear resistance, and driving force, this utility model provides a tread pattern for a high-mileage driving tire for snow.

[0007] A high-mileage snow tire tread pattern includes a tread pattern comprising a central tread ring and a shoulder. Tread grooves are provided between the central tread ring and the shoulder. The central tread ring comprises three tread rings, with tread grooves between adjacent tread rings. The tread rings are composed of tread blocks arranged at intervals along the circumference of the tread, and adjacent tread blocks are connected by reinforcing ribs. The tread blocks are composed of hexagons ABCDEF, wherein opposite sides are parallel, forming three pairs of parallel sides: line segment AB is parallel to line segment DE; line segment CD is parallel to line segment AF; line segment BC is parallel to line segment EF; and the length of line segment BC is greater than that of line segment AB. The length of line segment FE is greater than the length of line segment DE; the tread block is provided with oblique grooves formed by 3D steel sheets, the oblique grooves penetrate the tread block, and the oblique grooves are parallel to line segments AF and CD; the oblique grooves divide the tread block into two equal regions I and II, and both regions I and II are provided with 2D steel sheet grooves I parallel to the oblique grooves; the reinforcing ribs are provided with 2D steel sheet grooves II; the tread grooves are all closed fold lines along the tire circumference, the closed fold lines are composed of repeating fold line units, the direction of the fold lines of the tread grooves is parallel to the edge of the adjacent tread ring, and the inward protrusion of the fold lines of the tread grooves corresponds to the reinforcing ribs of the adjacent tread rings.

[0008] The broken line unit includes a long broken line and a short broken line. The long broken line corresponds to line segment BC of the pattern block, and the short broken line corresponds to line segment AB of the pattern block. The bottom of the pattern groove is designed with an arc shape, and the arc radius of the groove bottom corresponding to the long broken line and the short broken line is different.

[0009] The radius of the arc at the bottom of the trench corresponding to the long broken line is 2.5-3mm; the radius of the arc at the bottom of the trench corresponding to the short broken line is 1-2mm.

[0010] The width of the groove is 10.5-11.5 mm, and the depth of the groove is 22-24 mm.

[0011] Compared with the prior art, the beneficial technical effects of this utility model are:

[0012] By optimizing the structure of the tread grooves and using different fillet radii at the bottom of the same groove, drainage performance can be improved, thereby increasing tire grip. Using irregular hexagonal tread blocks generates more engagement edges upon contact with the ground, increasing wet grip. The tread blocks feature continuous, oblique grooves, enhancing grip and anti-slip capabilities. Symmetrical steel grooves on both sides of the oblique grooves help prevent deformation of the tread blocks under pressure, increasing wear resistance and further improving tire stiffness. Reinforcing ribs connect adjacent tread blocks, and these ribs also have steel grooves, facilitating heat dissipation and improving tire stiffness. A reasonable rib width ratio increases shoulder stiffness and reduces uneven tire wear. A tread saturation of 69% significantly improves the product's driving force. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the tire structure of this utility model.

[0014] Figure 2 This is a schematic diagram of the structure of the tire tread block of this utility model.

[0015] Figure 3 for Figure 1 A cross-sectional view along the circumferential direction of the tire at point oo.

[0016] Figure 4 for Figure 1 Cross-sectional view at the center of the patterned groove 2 aa.

[0017] Figure 5 for Figure 1 Cross-sectional view at the 2bb mark of the central patterned groove.

[0018] Figure 6 for Figure 1 Cross-sectional view at the 6 cc point of the central reinforcing rib.

[0019] Figure 7 for Figure 1 A cross-sectional view of the 2D steel strip groove I 8 along the lateral direction of the tire at point dd.

[0020] Figure 8 for Figure 1 A cross-sectional view of the 2D steel strip groove I 8 along the tire circumferential direction at ee.

[0021] Figure 9 for Figure 1 Cross-sectional view at 9 ff of the medium-width heat dissipation slot.

[0022] Figure 10 for Figure 1 Cross-sectional view at 10 gg in the narrow heat dissipation channel.

[0023] Figure 11 This is the front view of the oblique trench 6.

[0024] Figure 12 This is a top view of the sloping trench 6.

[0025] Among them, 1 is the tire shoulder; 2 is the tread groove; 3 is the tread ring; 4 is the tread block; 5 is the oblique groove; 6 is the reinforcing rib; 7 is the 2D steel plate groove II; 8 is the 2D steel plate groove I; 9 is the wide heat dissipation groove; and 10 is the narrow heat dissipation groove. Detailed Implementation

[0026] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings and specific embodiments. It should be understood that the preferred embodiments described herein are only for illustration and explanation of this utility model and should not be construed as limiting the scope of protection of this utility model. Those skilled in the art can make some non-essential improvements and adjustments based on the content of this utility model below. In this utility model, unless otherwise expressly specified and limited, the technical terms used in this application should have the ordinary meaning understood by those skilled in the art.

[0027] like Figure 1 , 2 As shown, a high-mileage snow driving tire tread pattern includes a central tread ring and a shoulder 1. Tread grooves 2 are provided between the central tread ring and the shoulder. The central tread ring includes three tread rings 3. The tread rings 3 are composed of tread blocks 4 arranged at intervals along the circumference of the tire tread. Adjacent tread blocks 4 are connected by reinforcing ribs 6. Tread grooves 2 are provided between adjacent tread rings 3. The tread blocks 4 of different tread rings 3 are staggered, so that the three tread rings 3 form a central symmetry.

[0028] In order to quickly and effectively reduce the high-speed heat generation of the tire, an open heat dissipation groove is provided on the outer edge of the tire shoulder 1 along the tire circumference. The heat dissipation groove includes a wide heat dissipation groove 9 and a narrow heat dissipation groove 10, which are alternately and evenly arranged on the outer edge of the tire shoulder; the two tire shoulders are symmetrical about the central axis.

[0029] like Figure 3 As shown, the patterned block 4 is composed of hexagons ABCDEF, where opposite sides are parallel, forming three pairs of parallel sides: line segment AB is parallel to line segment DE; line segment CD is parallel to line segment AF; line segment BC is parallel to line segment EF; the length of line segment BC is greater than the length of line segment AB, and the length of line segment FE is greater than the length of line segment DE. The patterned block 4 is provided with oblique grooves 5 formed by 3D steel sheets, which penetrate the patterned block 4 and are parallel to line segments AF and CD. The oblique grooves 5 divide the patterned block 4 into two equal regions, I and II. Both regions I and II are provided with 2D steel sheet grooves I 8 parallel to the oblique grooves 5. The 2D steel sheet grooves I 8 are non-through designs. 8. Formed from 2D steel sheets; the through-type oblique grooves increase the tire's grip and anti-slip ability; at the same time, the parallel steel strip grooves on both sides of the oblique grooves help the tread blocks not deform when squeezed, increasing wear resistance and thus further improving tire rigidity; by using irregular hexagonal tread blocks, more bite edges can be generated when in contact with the ground, increasing the tire's wet grip.

[0030] The angle between the oblique groove 5 and the tire axis is 72°-73°.

[0031] The reinforcing rib 6 is equipped with a 2D steel plate groove II 7, which is formed by a 2D steel plate and adopts a non-through design. For example... Figure 6 As shown, the depth LB of reinforcing rib 6 is 3.5-4 cm; the design of steel plate groove II is beneficial for heat dissipation and can also improve tire stiffness.

[0032] The 2D steel plate groove II 7 is parallel to the oblique groove 5.

[0033] like Figure 11 , 12 As shown, the oblique groove 5 is formed by 3D steel sheet. From the tire tread, the oblique groove 5 is along the width direction of the tread block 4: the middle part mm' is a straight line, the transition parts mn and m'n' at both ends are wavy lines, and the outermost pn and p'n' are straight lines again; in the tire depth direction, the oblique groove is dissected along the tire circumference direction. The oblique groove 5 along the depth direction of the tread block 4 is: the upper and lower ends ks and k's' are vertical, and the middle ss' is wavy; the width of the oblique groove 5 is 37-39mm, and the depth of the oblique groove 5 is 15-17mm. The oblique groove 5 adopts a special design of 3D steel sheet, which can both drain water quickly and reduce noise.

[0034] like Figure 9 , 10 As shown, the depth of the heat dissipation grooves is 19-21mm. Along the tire circumference, both ends of the bottom of the heat dissipation grooves are designed with an arc shape. The arc radius R3 of the narrow heat dissipation groove is 2mm, the arc radius R2 of the wide heat dissipation groove is 3mm, the width of the narrow heat dissipation groove is 8-10mm, and the width of the wide heat dissipation groove is 17-19mm.

[0035] like Figure 4 , 5 As shown, the tread grooves 2 are all closed fold lines along the tire circumference. The closed fold lines are composed of repeated fold line units. The direction of the fold lines of the tread grooves 2 is parallel to the edge of the adjacent tread rings 3. The inward protrusion of the fold line corresponds to the reinforcing rib 6 of the adjacent tread rings 3. The inward protrusion of the fold line is the inflection point Q of the fold line unit. Compared with straight tread grooves, the fold line type tread grooves have stronger driving force.

[0036] The broken line unit includes a long broken line and a short broken line. The long broken line corresponds to line segment BC of the tread block 4, and the short broken line corresponds to line segment AB of the tread block 4. The bottom of the tread groove 2 is designed with an arc shape. The arc radius of the bottom of the groove corresponding to the long broken line and the short broken line is different. Using different rounded corner radii at the bottom of the same tread groove can improve drainage performance and thus increase tire grip.

[0037] The radius C of the arc at the bottom of the trench corresponding to the long broken line is 2.5-3mm. Figure 4 The radius C1 of the groove bottom arc corresponding to the short broken line is 1-2 mm. Figure 5 The width of groove 2 is 10.5-11.5mm, and the depth of groove 2 is 22-24mm.

[0038] like Figure 7 , 8 As shown, the 2D steel plate groove I 8 is formed by 2D steel plate. The width of the 2D steel plate groove I 8 is 0.75-0.85 mm, the depth LA is 14-16 mm, and along the transverse direction of the tire, the bottom arc radius R1 of both ends of the 2D steel plate groove I 8 is 1.8~2.2 mm.

[0039] The 2D steel plate groove II 7 is formed from 2D steel plates. The width of the 2D steel plate groove II 7 is 0.55-0.65mm, the depth is 1.5-2.5mm, and along the transverse direction of the tire, the bottom arc radius of both ends of the 2D steel plate groove II 7 is 1.8~2.2mm.

[0040] The shoulder width accounts for 16%-19% of the tire's tread width. A reasonable ratio of tread rib width increases shoulder stiffness and reduces uneven tire wear.

[0041] The tread saturation of long-distance drive wheel products is generally around 73%, while the tread pattern of the high-mileage snow drive wheel provided by this utility model has a tread saturation of 69%, which can significantly improve the driving force of the product.

[0042] In summary, this utility model provides a high-mileage snow drive wheel tread pattern. By optimizing the structure of the tread grooves and using different rounded corner radii at the bottom of the same tread groove, drainage performance can be improved, thereby increasing tire grip. By using irregular hexagonal tread blocks, more engagement edges can be generated upon contact with the ground, increasing tire wet grip. The tread blocks are equipped with continuous oblique grooves, which increases the tire's grip and anti-slip ability. At the same time, steel plate grooves are symmetrically arranged on both sides of the oblique grooves, which helps the tread blocks to be less deformed when compressed, increasing wear resistance and further improving tire rigidity. Adjacent tread blocks are connected by reinforcing ribs, and steel plate grooves are set on the reinforcing ribs, which not only facilitates heat dissipation but also improves tire rigidity. The reasonable tread rib width ratio increases the shoulder rigidity and reduces uneven tire wear. The tread saturation is 69%, which significantly improves the driving force of the product.

Claims

1. A snow high mileage drive tire pattern comprising a tread pattern, characterized in that, The tread pattern includes a central tread ring and a shoulder, with tread grooves provided between the central tread ring and the shoulder. The central pattern ring includes three pattern rings, with pattern grooves provided between adjacent pattern rings. The pattern rings are composed of pattern blocks arranged at intervals along the circumference of the tire tread, and adjacent pattern blocks are connected by reinforcing ribs. The patterned block is composed of hexagons ABCDEF, where opposite sides are parallel, forming three pairs of parallel sides: line segment AB is parallel to line segment DE; line segment CD is parallel to line segment AF; line segment BC is parallel to line segment EF; the length of line segment BC is greater than the length of line segment AB, and the length of line segment FE is greater than the length of line segment DE; the patterned block is provided with oblique grooves formed by 3D steel sheets, which penetrate the patterned block and are parallel to line segments AF and CD; the oblique grooves divide the patterned block into two equal regions, I and II, and each region I and II is provided with 2D steel sheet grooves I parallel to the oblique grooves; The reinforcing rib is provided with a 2D steel plate groove II; All the tread grooves are closed fold lines along the tire circumference. The closed fold lines are composed of repeating fold line units. The direction of the fold lines of the tread grooves is parallel to the edge of the adjacent tread rings. The inward protrusions of the fold lines of the tread grooves correspond to the reinforcing ribs of the adjacent tread rings.

2. A snow high mileage drive tire pattern as claimed in claim 1, characterized in that, The broken line unit includes a long broken line and a short broken line. The long broken line corresponds to line segment BC of the pattern block, and the short broken line corresponds to line segment AB of the pattern block. The bottom of the pattern groove is designed with an arc shape, and the arc radius of the groove bottom corresponding to the long broken line and the short broken line is different.

3. A snow high mileage drive tire pattern as in claim 2, wherein, The radius of the arc at the bottom of the trench corresponding to the long broken line is 2.5-3mm; the radius of the arc at the bottom of the trench corresponding to the short broken line is 1-2mm.

4. A snow high mileage drive tire pattern as in claim 3, wherein, The width of the groove is 10.5-11.5 mm, and the depth of the groove is 22-24 mm.

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