Hybrid all-terrain tire capable of improving off-road performance

Abstract

The invention relates to the technical field of tires, and discloses a hybrid all-terrain tire capable of improving off-road performance. The pattern block units on the tread of the tire are mutually engaged in the circumferential direction and the axial direction of the tire to form interlocking, and the pattern groove blocks are distributed in a balanced manner, so that the control capability of cross-country road surfaces is improved; due to the design of the stepped pattern edges of the pattern blocks, the running stability of the tire can be kept while the traction force is improved; the pattern block chamfers can improve the tear resistance of the tire; stone discharging pattern blocks can accelerate discharging of stones; the concave and convex tire shoulder outlines are staggered along the circumferential direction of the tire, so that the escape capability of the tire on a soft road surface is improved; and the tire side patterns can improve the lateral road holding force and enhance the driving safety.

Description

Technical Field

[0001] The present invention relates to the technical field of tires, in particular to a hybrid all-terrain tire with improved off-road performance. Background Art

[0002] In recent years, hybrid all-terrain tires (RT tires), a cross between all-terrain tires (AT tires) and mud-terrain tires (MT tires), have become popular in some countries and regions. These tires offer both on-road and off-road performance, making them suitable for off-road enthusiasts who frequently switch between roads and unpaved surfaces. They are particularly popular in northwest China, North America, the deserts of the Middle East, and outdoor adventure areas in Europe. RT tires require deep tread grooves, robust tread blocks, and a sturdy sidewall design to enhance puncture resistance and maneuverability on muddy and gravel roads. The key to hybrid all-terrain tire design is how to achieve both on-road performance and off-road performance. Summary of the Invention

[0003] The present invention addresses the deficiencies of the prior art and provides a hybrid all-terrain tire with improved off-road performance.

[0004] In order to achieve the above-mentioned purpose, the present invention adopts the following technical solutions: A hybrid all-terrain tire for improving off-road performance comprises a tread and sidewalls. The tread is provided with three circumferentially extending, alternately arranged pattern ribs and two pattern main grooves, which are arranged transversely along the tire tread. The three pattern ribs comprise, from left to right, a first pattern rib, a second pattern rib, and a third pattern rib. The two pattern main grooves comprise, from left to right, a first pattern main groove and a second pattern main groove. The pattern of the first pattern rib and the pattern of the third pattern rib are centrally symmetrical. The sidewalls are provided with evenly arranged sidewall pattern blocks, and the patterns of the sidewalls on both sides of the tread are centrally symmetrical. The first pattern rib is divided into evenly arranged first pattern block units by the first transverse grooves, and the first pattern block units are divided into first shoulder pattern blocks and second shoulder pattern blocks by the first auxiliary grooves. The first transverse grooves and the first auxiliary grooves are both connected to the first pattern main grooves. The first pattern rib extends from the crown of the tread to the shoulder. The shoulder of the first shoulder pattern block adopts a convex shoulder profile, and the shoulder of the second shoulder pattern block adopts a concave shoulder profile. The second pattern rib is divided into evenly arranged second pattern block units by the second transverse grooves. The second pattern block units are divided into two first center pattern blocks and two second center pattern blocks by the intersecting second and third auxiliary grooves. The pattern of the second pattern block units is overall centrosymmetrical. The second transverse grooves and the second auxiliary grooves are parallel to each other and are connected to the first and second pattern main grooves. The third auxiliary grooves are connected to the adjacent second transverse grooves on both sides. The first pattern block unit and the second pattern block unit are both provided with protrusions and recesses on their profiles, which can cooperate with each other to form an interlocking structure; the first row of stone pattern blocks is provided at the intersection where the first transverse groove, the second transverse groove and the first pattern main groove are connected to each other; the second row of stone pattern blocks is provided between adjacent first pattern block units; The first shoulder pattern block and the second shoulder pattern block are all provided with stepped pattern edges on the side facing the first pattern main groove, the side facing the first pattern main groove, the side facing the first pattern main groove and the side facing the second transverse groove of the first center pattern block.

[0005] Preferably, the first shoulder pattern block, the second shoulder pattern block, and the second row of stone pattern blocks are all arrow-shaped, with the arrows pointing in the same tire circumferential direction; the first shoulder pattern block and the second shoulder pattern block, as well as the second shoulder pattern block and the second row of stone pattern blocks cooperate with each other to form an interlocking structure; The first row of stone pattern blocks is arrow-shaped as a whole, and the arrow points to the second row of stone pattern blocks.

[0006] Preferably, the depth of the first row of stone pattern blocks and the second row of stone pattern blocks is 2.0-3.0 mm from the tire bottom.

[0007] Preferably, a side profile of the first shoulder pattern block facing the first main groove is recessed into the first shoulder pattern block to form a first inner concave portion, the first inner concave portion dividing the side profile into two sections, one of which is provided with a first stepped pattern edge at a portion of the first shoulder pattern block, and a second stepped pattern edge is provided in the first inner concave portion; The side profile of the second shoulder pattern block facing the first pattern main groove is recessed into the second shoulder pattern block to form a second inner concave portion, which divides the side profile into two sections, one of which is provided with a third stepped pattern edge at the position of the second shoulder pattern block, and a fourth stepped pattern edge is provided in the second inner concave portion; A side profile of the first central pattern block facing the first pattern main groove is recessed into the first central pattern block to form a third inner recess. The third inner recess divides the side profile into two sections. One section is provided with a fifth first-step pattern edge at a portion of the first central pattern block, and the other section is provided with a fifth second-step pattern edge at a portion of the first central pattern block. A sixth stepped pattern edge is provided within the third inner recess. The seventh stepped pattern edge is provided at the portion of the second central pattern block where the side contour of the second central pattern block faces the first pattern main groove; the side contour of the second central pattern block facing the second transverse groove is recessed into the second central pattern block to form a fourth inner recess, which divides the side contour into two sections, and the eighth stepped pattern edge is provided in the fourth inner recess; the ninth stepped pattern edge is provided at the portion of the second central pattern block facing the second transverse groove and a corner of the third auxiliary groove.

[0008] Preferably, the step height difference of the first ladder pattern edge, the third ladder pattern edge, the fifth first ladder pattern edge, the fifth second ladder pattern edge, the seventh ladder pattern edge, and the ninth ladder pattern edge is 15% to 20% of the depth of the main groove of the pattern; The step height difference of the second stepped pattern edge, the fourth stepped pattern edge, the sixth stepped pattern edge and the eighth stepped pattern edge is 30% to 40% of the groove depth of the pattern main groove.

[0009] Preferably, the groove depth of the main groove of the pattern is 11.5~13.5mm.

[0010] Preferably, a first pattern block cut corner is provided at a corner of the first central pattern block facing the interior of the second pattern block unit.

[0011] Preferably, steel sheet grooves are provided inside the first shoulder tread block, the first center tread block, the second center tread block and the second shoulder tread block; the steel sheet grooves have a width of 0.7-0.8 mm and a depth of 3-9 mm.

[0012] Preferably, the first shoulder pattern block, the second shoulder pattern block, the first center pattern block and the second center pattern block are all provided with bottom protection blocks at the bottom of the outer groove of the crown part.

[0013] Preferably, the bottom tire protection block has a depth of 1.0-2.0 mm from the tire bottom and a width of 2.0-3.0 mm.

[0014] The present invention provides a hybrid all-terrain tire with improved off-road performance. The pattern block units on the tread interlock with each other in the circumferential and axial directions of the tire, and the pattern groove blocks are evenly distributed, thereby improving the handling ability on off-road roads. The stepped pattern edge design of the pattern block edges can improve traction while maintaining the stability of the tire's driving. The pattern block cut angles can improve the tire's tear resistance. The stone-repelling pattern blocks can accelerate the discharge of stones. The concave and convex shoulder profiles designed with staggered arrangement along the tire's circumferential direction improve the tire's ability to escape from loose roads. The sidewall pattern can improve lateral grip and enhance driving safety. In summary, the tire of the present application can improve the self-cleaning ability of mud and stone removal while ensuring stable grip and safety, and enhance the ability to escape from loose roads. It is a hybrid all-terrain tire with better off-road performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a planar unfolded view of the tire pattern structure.

[0016] Figure 2 for Figure 1 One of the partial images.

[0017] Figure 3 for Figure 1 Partial diagram 2.

[0018] Figure 4 These are cross-sectional views of the first stepped pattern edge, the third stepped pattern edge, the fifty-first stepped pattern edge, the fifth-second stepped pattern edge, and the seventh stepped pattern edge.

[0019] Figure 5 Detailed cross-sectional views of the second stepped pattern edge, the fourth stepped pattern edge, the sixth stepped pattern edge, and the eighth stepped pattern edge.

[0020] Figure 6 This is a cross-sectional view of the edge of the ninth stepped pattern.

[0021] Figure 7 This is a cross-sectional view of the cut corner of the first pattern block.

[0022] Figure 8 This is a cross-sectional view of the tire bottom protection block.

[0023] Figure 9 Cross-sectional views of convex and concave shoulder profiles.

[0024] Reference numerals: 110-first rib, 111-first transverse groove, 131-first secondary groove, 1-first shoulder block, 11-convex shoulder profile, 2-second shoulder block, 12-concave shoulder profile, 120-second rib, 121-second transverse groove, 132-second secondary groove, 133-third secondary groove, 3-first center block, 4-second center block, 130-third rib, 5-sidewall block, 6-first row of stone blocks, 7-second row of stone blocks, 210-first main groove, 220-second main groove, 21-first steel block Plate groove, 22-second steel plate groove, 23-third steel plate groove, 24-fourth steel plate groove, 25-fifth steel plate groove, 31-first ladder pattern edge, 32-second stepped pattern edge, 33-third stepped pattern edge, 34-fourth stepped pattern edge, 351-fifth first stepped pattern edge, 352-fifth second stepped pattern edge, 36-sixth stepped pattern edge, 37-seventh stepped pattern edge, 38-eighth stepped pattern edge, 39-ninth stepped pattern edge, 41-first pattern block cut corner, 8-tread bottom protection block. DETAILED DESCRIPTION

[0025] The following is a clear and complete description of the technical solutions in the embodiments of the present invention in conjunction with the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts are within the scope of protection of the present invention.

[0026] In the description of this application, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply 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 this application.

[0027] The tire specification of this implementation case is 35*12.5R20LT. Figure 1 The figure shows a schematic diagram of the structure of the tread and sidewalls unfolded into a plane state, and Figure 1 Also shown are the left shoulder line a and the right shoulder line b. A circumferentially extending tire pattern is provided on the tread between the left and right shoulder lines a and b. The image shows that the tire pattern is centrosymmetrical and primarily features large, blocky patterns. Different pattern designs in different areas can provide different stresses and performance to different parts of the tire.

[0028] like Figure 1-3 As shown, the tread is provided with 3 circumferentially extending pattern ribs and 2 pattern main grooves arranged alternately. Figure 1 (From left to right in the figure), the tire tread pattern includes, in order: a first pattern rib 110, a second pattern rib 120, and a third pattern rib 130. The width of the second pattern rib 120 is significantly greater than that of the first and third pattern ribs 110, 130. The patterns of the first and third pattern ribs 110 and 130 are centrally symmetrical. The three pattern ribs are independent of each other, meaning that adjacent ribs do not directly contact each other.

[0029] The tire tread is also provided with zigzag longitudinal grooves extending circumferentially to prevent direct contact between the aforementioned ribs. A first main groove 210 extending in a circumferential straight line is formed between the first and second ribs 110, 120. A second main groove 220 extending in a circumferential straight line is formed between the second and third ribs 120, 130. The depth D of these two longitudinal grooves ranges from 11.5 to 13.5 mm. In this embodiment, the depth D of these two longitudinal grooves is 12.5 mm. Therefore, the depth of the three ribs from the bottom of the grooves is also 12.5 mm, meaning that the thickness of the three ribs is 12.5 mm.

[0030] The pattern of the sidewall on both sides of the tread is also center-symmetrical, and the sidewall is provided with uniformly arranged sidewall blocks 5. The sidewall blocks 5 are integrally extended with the blocks on the adjacent pattern ribs, and the sidewall blocks 5 are 4-6 mm, in this embodiment 5 mm, higher than the surface of the sidewall. The sidewall blocks 5 will embed into the ground gap on slopes, soft road surfaces and rocky road sections, forming temporary anchor points, thereby improving lateral grip; at the same time, it can enhance the rigidity of the sidewall part, assist in enhancing the rigidity of the shoulder blocks, and strengthen the driving safety.

[0031] The first pattern rib 110 extends from the crown of the tread to the shoulder and adjoins the sidewall block 5. The first pattern rib 110 is circumferentially provided with a first transverse groove 111 and a first secondary groove 131, and the first transverse groove 111 and the first secondary groove 131 are parallel to each other and are both communicated with the first pattern main groove 210. The groove depth of the first transverse groove 111 and the first secondary groove 131 is consistent with that of the first pattern main groove 210. The first pattern rib 110 is divided into uniformly arranged first block units by the first transverse groove 111, and adjacent first block units are independent of each other. The first block unit is divided into a first shoulder block 1 and a second shoulder block 2 which are parallel in the tire circumferential direction by the first secondary groove 131, and adjacent first shoulder blocks 1 and second shoulder blocks 2 are independent of each other. In this embodiment, the first shoulder block 1 in the first block unit is located in front of the second shoulder block 2.

[0032] A second stone-removing block 7 is arranged between adjacent first block units, i.e. the second stone-removing block 7 is arranged inside the first transverse groove 111. The depth of the second stone-removing block 7 is 2.0-3.0 mm from the tire bottom, and in this embodiment, the depth of the second stone-removing block 7 is 2.5 mm from the tire bottom, i.e. the thickness of the second stone-removing block 7 is 2.5 mm. When a stone is stuck in the groove, the rebound force generated by the deformation of the stone-removing block in the groove can accelerate the removal of the stone, and the local deformation can absorb energy when impacted, avoiding stress conduction to the body cord layer and reducing the risk of about 80% of the bulge.

[0033] The first shoulder block 1, the second shoulder block 2 and the second stone-removing block 7 are all arrow-shaped as a whole, and the arrows all point in the same direction of the tire circumferential direction, and in this embodiment, the arrows all point to the rear of the tire circumferential direction. The rear of the first shoulder block 1, the second shoulder block 2 and the second stone-removing block 7 has a protruding part forming the tip of the arrow, and the front has a recess forming the tail of the arrow, so that the first shoulder block 1 and the second shoulder block 2, and the second shoulder block 2 and the second stone-removing block 7 can form a interlocking structure in the tire circumferential direction by the protruding part and the recess, thereby improving the control ability on off-road surfaces.

[0034] The shoulder on the first shoulder block 1 adopts a convex shoulder profile 11, which is specifically Figure 1-3 As shown in FIG9 , the convex shoulder profile 11 is raised toward the top of the tire. The shoulder of the second shoulder pattern block 2 adopts a concave shoulder profile 12. Figure 1-3 As shown in Figures 9 and 9, the concave shoulder profile 12 is recessed toward the interior of the tire. These two shoulder profiles are evenly staggered along the tire circumference along with the first shoulder pattern block 1 and the second shoulder pattern block 2. When the vehicle travels on soft roads, the convex shoulder profile 11 generates centrifugal force to throw away mud, while the concave shoulder profile 12 forms a negative pressure area that accelerates the radial flow of mud, thereby improving the tire's ability to escape from soft roads and enhancing off-road capabilities.

[0035] The second rib 120 is circumferentially provided with second transverse grooves 121, each of which communicates with the first main groove 210 and the second main groove 220. The second transverse grooves 121 divide the second rib 120 into evenly arranged second pattern blocks, each of which remains independent of the other. The second transverse grooves 121 are arranged diagonally, with the left side lower and the right side higher, resulting in an oblique distribution of the second pattern blocks. The second pattern blocks are divided into two first center blocks 3 and two second center blocks 4 by intersecting second and third secondary grooves 132 and 133. The first and second center blocks 3 and 4 are staggered and independent of each other, resulting in a centrally symmetrical pattern for the second pattern blocks. The second secondary grooves 132 also communicate with the first main groove 210 and the second main groove 220 at their respective ends, and are approximately parallel to the second transverse grooves 121. The third auxiliary grooves 133 intersect the second transverse grooves 121, with both ends of the third auxiliary grooves 133 communicating with the adjacent second transverse grooves 121. In this embodiment, the angle between the third auxiliary grooves 133 and the second transverse grooves 121 is approximately 114°. Furthermore, in this embodiment, the groove depths of the second transverse grooves 121, the second auxiliary grooves 132, and the third auxiliary grooves 133 are consistent with those of the first pattern main grooves 210.

[0036] The first and second tread block units are both configured with protrusions and depressions on their profiles, which cooperate to form an interlocking structure. Specifically, the sides of the first and second tread block units facing the first main groove 210 are both zigzag-shaped, with the protrusions of each unit corresponding to the depressions of the other unit, forming an interlocking structure across the tire's width and enhancing off-road handling.

[0037] Overall, the first transverse grooves 111 connect sequentially with the second transverse grooves 121 through the first main grooves 210, allowing the first rib 110, the two first block units on the third rib 130, and the second block unit on the second rib 120 to form a complete tread block. A first row of stone blocks 6 is located at the intersection of the first transverse grooves 111, the second transverse grooves 121, and the first main grooves 210. Specifically, the first row of stone blocks 6 is disposed within the first main grooves 210. The depth of the first row of stone blocks 6 from the tread base is 2.0 to 3.0 mm. In this embodiment, the depth of the first row of stone blocks 6 from the tread base is 2.5 mm, meaning the thickness of the first row of stone blocks 6 is 2.5 mm, similar to the thickness of the second row of stone blocks 7. The first row of stone blocks 6 is shaped like a small triangular arrow, with the arrow pointing toward the second row of stone blocks 7.

[0038] The first shoulder pattern block 1, the second shoulder pattern block 2, the first center pattern block 3, and the second center pattern block 4 are all provided with a bottom protection block 8 at the bottom of the outer groove of the crown part. Figure 1-3 As shown, Figure 1 The tire bottom protection block 8 is shown but not painted black. Figure 2 、 3 The tire bottom protection block 8 is shown in black. The cross section of the tire bottom protection block 8 is as shown in FIG. Figure 8 As shown, its depth from the tire base d3 is 1.0-2.0mm, and its width is 2.0-3.0mm. The chamfer radius at its junction with the tread block is R, and the chamfer at its junction with the tread groove is R'. The angle between its outer wall and the vertical direction is α. In this embodiment, the tread protection block 8 has a depth of 1.5mm from the tire base d3, a width of 2.5mm, an R of 0.5mm, an R' of 1.0mm, and an α of 5°. This integrated design of the tread and groove bottom strengthens the tire groove bottom, prevents cracking, and ensures driving safety.

[0039] like Figure 1-3 As shown, the first shoulder block 1, the second shoulder block 2, the first center block 3, and the second center block 4 are all provided with stepped pattern edges and three-dimensional steel grooves, the steel grooves having a width of 0.7-0.8 mm and a depth of 3-9 mm. The details are as follows.

[0040] The side profile of the first shoulder block 1 facing the first main groove 210 is recessed into the first shoulder block 1, forming a first concave portion. This first concave portion divides the side profile into two sections: the first section is located near the front first transverse groove 111, and the second section is located near the rear first secondary groove 131. A first stepped tread edge 31 is provided in the first section of the first shoulder block 1, and a second stepped tread edge 32 is provided within the first concave portion. A transverse first steel plate groove 21 is also provided within the first shoulder block 1. The right end of this first steel plate groove 21 contacts the first concave portion, and the left end extends into the convex shoulder profile 11.

[0041] The side profile of the second shoulder block 2 facing the first main groove 210 is recessed into the second shoulder block 2, forming a second recessed portion. This second recessed portion divides the side profile into two sections: the first section is located near the front first secondary groove 131, and the second section is located near the rear first transverse groove 111. A third stepped tread edge 33 is provided in the first section of the second shoulder block 2, while a fourth stepped tread edge 34 is provided in the second recessed portion. A transverse second steel groove 22 is provided within the second shoulder block 2. The right end of this first steel groove 21 contacts the second recessed portion, while the left end extends into the concave shoulder profile 12.

[0042] The side profile of the first center tread block 3 facing the first main groove 210 is recessed into the first center tread block 3 to form a third recessed portion. This recessed portion divides the side profile into two sections: the first section is closer to the front first transverse groove 111, and the second section is closer to the rear first secondary groove 131. A fifth stepped edge 351 is provided on the first section of the first center tread block 3. The second section is curved, and the line segment closer to the first secondary groove 131 is provided on the first center tread block 3. A sixth stepped edge 36 is provided within the third recessed portion. The first center tread block 3 is internally provided with an oblique third steel groove 23 and a fourth steel groove 24. The third steel sheet groove 23 is almost parallel to the fifth stepped pattern edge 351, with one end in contact with the upper contour of the first center pattern block 3 and the other end located inside the first center pattern block 3; the fourth steel sheet groove 24 is almost parallel to the second auxiliary groove 132, with one end in contact with the lower contour of the first center pattern block 3 and the other end located inside the first center pattern block 3.

[0043] A seventh stepped edge 37 is provided on the side of the second center block 4 facing the first main groove 210. The side of the second center block 4 facing the second transverse groove 121 is recessed into the second center block 4 to form a fourth recessed portion. This fourth recessed portion divides the side into two sections: the first section is located near the first main groove 210 on the left, and the second section is located near the third secondary groove 133 on the right. An eighth stepped edge 38 is provided within the fourth recessed portion. A ninth stepped edge 39 is provided on the second center block 4 at a corner facing the second transverse groove 121 and the third secondary groove 133. An oblique fifth steel plate groove 25 is provided within the second center block 4. This fifth steel plate groove 25 is substantially parallel to the upper and right contours of the second center block 4. One end of the fifth steel plate groove 25 contacts the lower contour of the second center block 4, and the other end extends into the seventh stepped edge.

[0044] The cross sections of the first ladder pattern edge 31, the third ladder pattern edge 33, the fifth first ladder pattern edge 351, the fifth second ladder pattern edge 352, and the seventh ladder pattern edge 37 are as shown in FIG. Figure 4 As shown, the step height difference d1 is 15% to 20% of the main groove depth D of the pattern. In this embodiment, d1 is 2 mm, and the chamfer R is 0.5 mm. Figure 4 The stepped pattern edges shown can actively embed themselves into gaps on hard roads such as rocks and tree roots, producing a mechanical self-locking effect. At the same time, when the vehicle tilts on off-road sections, the low-area pattern blocks provide stable support, while the high-area pattern blocks continue to grip the ground, avoiding single-point instability.

[0045] The cross-sections of the second stepped pattern edge 32, the fourth stepped pattern edge 34, the sixth stepped pattern edge 36, and the eighth stepped pattern edge 38 are as follows: Figure 5 As shown, the step height difference d2 is 30% to 40% of the main groove depth D of the pattern. In this embodiment, d2 is 4 mm, and the chamfer R' is 1.0 mm. The cross section of the ninth ladder pattern edge 39 is as follows: Figure 6 As shown, the step height difference d1 is 15% to 20% of the main groove depth D of the pattern. In this embodiment, d1 is 2 mm, and the chamfer R is 0.5 mm. Figure 5 and Figure 6 The stepped tread edges shown provide a tread pattern with a staggered, high-low block structure. The higher blocks directly contact the ground to enhance grip, while the lower blocks serve as a support base, maintaining overall carcass rigidity. This layered structure enables the tire to maintain strong traction and ensure driving stability on complex terrain.

[0046] Furthermore, a first pattern block cut corner 41 is provided at a corner of the first center pattern block 3 facing the interior of the second pattern block unit. Figure 7As shown, the angled cut is created by chamfering, with the vertical height h covering only a portion of the first center tread block 3. In this embodiment, h is 5 mm. Chamfering the sharp edges of the tread blocks prevents breakage and chipping under extreme impacts, improving driving stability. Furthermore, the angled cut can increase the tire's tear resistance by 50%, extending its service life on complex off-road terrain.

[0047] The above is a description of the embodiments of the present invention. The above description of the disclosed embodiments will enable those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art. The general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not limited to the embodiments shown herein, but is intended to conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A hybrid all-terrain tire with improved off-road performance, characterized in that: The tire comprises a tread and a sidewall, wherein the tread is provided with three circumferentially extending pattern ribs and two pattern main grooves arranged alternately and arranged transversely along the tire tread, wherein the three pattern ribs comprise a first pattern rib (110), a second pattern rib (120), and a third pattern rib (130) from left to right, and the two pattern main grooves comprise a first pattern main groove (210) and a second pattern main groove (220) from left to right; the pattern of the first pattern rib (110) and the pattern of the third pattern rib (130) are centrally symmetrical; the sidewall is provided with evenly arranged sidewall pattern blocks (5), and the patterns of the sidewalls on both sides of the tread are centrally symmetrical; The first pattern rib (110) is divided into uniformly arranged first pattern block units by the first transverse groove (111), and the first pattern block unit is divided into a first shoulder pattern block (1) and a second shoulder pattern block (2) by the first auxiliary groove (131), the first transverse groove (111) and the first auxiliary groove (131) are parallel to each other and are both connected to the first pattern main groove (210); the first pattern rib (110) extends from the crown of the tread to the shoulder, the shoulder of the first shoulder pattern block (1) adopts a convex shoulder profile (11), and the shoulder of the second shoulder pattern block (2) adopts a concave shoulder profile (12); The second pattern rib (120) is divided into evenly arranged second pattern block units by the second transverse groove (121), and the second pattern block unit is divided into two first central pattern blocks (3) and two second central pattern blocks (4) by the intersecting second auxiliary groove (132) and third auxiliary groove (133), and the pattern of the second pattern block unit is centrally symmetrical as a whole; the second transverse groove (121) and the second auxiliary groove (132) are both connected to the first pattern main groove (210) and the second pattern main groove (220); the third auxiliary groove (133) is both connected to the second transverse grooves (121) adjacent to both sides; The first pattern block unit and the second pattern block unit are both provided with protrusions and recesses on their profiles, which can cooperate with each other to form an interlocking structure; a first row of stone pattern blocks (6) is provided at the intersection where the first transverse groove (111), the second transverse groove (121), and the first pattern main groove (210) are connected to each other; a second row of stone pattern blocks (7) is provided between adjacent first pattern block units; The first shoulder pattern block (1) and the second shoulder pattern block (2) are all provided with stepped pattern edges on their sides facing the first pattern main groove (210), the first center pattern block (3) is provided with its side facing the first pattern main groove (210), and the second center pattern block (4) is provided with its side facing the first pattern main groove (210) and its side facing the second transverse groove (121).

2. A hybrid all-terrain tire with improved off-road performance according to claim 1, characterized in that: The first shoulder pattern block (1), the second shoulder pattern block (2), and the second row of stone pattern blocks (7) are all arrow-shaped, with the arrows pointing in the circumferential direction of the tire on the same side; the first shoulder pattern block (1) and the second shoulder pattern block (2), and the second shoulder pattern block (2) and the second row of stone pattern blocks (7) cooperate with each other to form an interlocking structure.

3. A hybrid all-terrain tire with improved off-road performance according to claim 1 or 2, characterized in that: The depth of the first row of stone pattern blocks (6) and the second row of stone pattern blocks (7) is 2.0-3.0 mm from the tire bottom.

4. The hybrid all-terrain tire with improved off-road performance according to claim 1, characterized in that: A side profile of the first shoulder pattern block (1) facing the first pattern main groove (210) is recessed into the first shoulder pattern block (1) to form a first inner concave portion, the first inner concave portion dividing the side profile into two sections, one section of which is provided with a first stepped pattern edge (31) at the location of the first shoulder pattern block (1), and a second stepped pattern edge (32) is provided in the first inner concave portion; A side profile of the second shoulder pattern block (2) facing the first pattern main groove (210) is recessed into the second shoulder pattern block (2) to form a second inner concave portion, the second inner concave portion dividing the side profile into two sections, one section of which is provided with a third stepped pattern edge (33) at the location of the second shoulder pattern block (2), and a fourth stepped pattern edge (34) is provided in the second inner concave portion; A side profile of the first central pattern block (3) facing the first pattern main groove (210) is recessed into the first central pattern block (3) to form a third inner concave portion, the third inner concave portion dividing the side profile into two sections, one section being provided with a fifth first-step pattern edge (351) at a portion of the first central pattern block (3), the other section being provided with a fifth second-step pattern edge (352) at a portion of the first central pattern block (3), and a sixth stepped pattern edge (36) being provided in the third inner concave portion; A seventh stepped pattern edge (37) is provided at a portion of the second central pattern block (4) where the side profile of the second central pattern block (4) faces the first pattern main groove (210); a side profile of the second central pattern block (4) facing the second transverse groove (121) is recessed into the second central pattern block (4) to form a fourth inner recess, which divides the side profile into two sections, and an eighth stepped pattern edge (38) is provided in the fourth inner recess; a ninth stepped pattern edge (39) is provided at a portion of the second central pattern block (4) facing the second transverse groove (121) and a corner of the third auxiliary groove (133).

5. The hybrid all-terrain tire with improved off-road performance according to claim 4, characterized in that: The step height difference of the first ladder pattern edge (31), the third ladder pattern edge (33), the fifth first ladder pattern edge (351), the fifth second ladder pattern edge (352), the seventh ladder pattern edge (37), and the ninth ladder pattern edge (39) is 15% to 20% of the depth of the main groove of the pattern; The step height difference of the second stepped pattern edge (32), the fourth stepped pattern edge (34), the sixth stepped pattern edge (36), and the eighth stepped pattern edge (38) is 30% to 40% of the depth of the main groove of the pattern.

6. The hybrid all-terrain tire with improved off-road performance according to claim 1, characterized in that: The groove depth of the main groove of the pattern is 11.5~13.5mm.

7. The hybrid all-terrain tire with improved off-road performance according to claim 1, characterized in that: A first pattern block cut corner (41) is provided at a corner of the first central pattern block (3) facing the interior of the second pattern block unit.

8. The hybrid all-terrain tire with improved off-road performance according to claim 1, characterized in that: Steel sheet grooves are provided inside the first shoulder tread block (1), the second shoulder tread block (2), the first center tread block (3), and the second center tread block (4); the steel sheet grooves have a width of 0.7 to 0.8 mm and a depth of 3 to 9 mm.

9. The hybrid all-terrain tire with improved off-road performance according to claim 1, characterized in that: The first shoulder pattern block (1), the second shoulder pattern block (2), the first center pattern block (3), and the second center pattern block (4) are all provided with a tire bottom protection block (8) at the bottom of the outer groove of the tire crown portion.

10. The hybrid all-terrain tire with improved off-road performance according to claim 9, characterized in that: The tire bottom protection block (8) has a depth of 1.0-2.0 mm from the tire bottom and a width of 2.0-3.0 mm.

Images