CN114919339B - Pneumatic tire of all-terrain vehicle for rock climbing and tread pattern structure of pneumatic tire - Google Patents

Pneumatic tire of all-terrain vehicle for rock climbing and tread pattern structure of pneumatic tire Download PDF

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Publication number
CN114919339B
CN114919339B CN202210109248.6A CN202210109248A CN114919339B CN 114919339 B CN114919339 B CN 114919339B CN 202210109248 A CN202210109248 A CN 202210109248A CN 114919339 B CN114919339 B CN 114919339B
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pattern
shoulder
block
tire
blocks
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CN114919339A (en
Inventor
林文艳
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Cheng Shin Rubber Xiamen Ind Ltd
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Cheng Shin Rubber Xiamen Ind Ltd
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Publication of CN114919339A publication Critical patent/CN114919339A/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
    • B60C11/00—Tyre tread bands; Tread patterns; Anti-skid inserts
    • B60C11/03—Tread patterns
    • B60C11/0304—Asymmetric patterns
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
    • B60C11/00—Tyre tread bands; Tread patterns; Anti-skid inserts
    • B60C11/03—Tread patterns
    • B60C11/12—Tread patterns characterised by the use of narrow slits or incisions, e.g. sipes
    • B60C11/1236—Tread patterns characterised by the use of narrow slits or incisions, e.g. sipes with special arrangements in the tread pattern
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
    • B60C11/00—Tyre tread bands; Tread patterns; Anti-skid inserts
    • B60C11/03—Tread patterns
    • B60C11/12—Tread patterns characterised by the use of narrow slits or incisions, e.g. sipes
    • B60C11/1259—Depth of the sipe
    • B60C11/1263—Depth of the sipe different within the same sipe
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
    • B60C11/00—Tyre tread bands; Tread patterns; Anti-skid inserts
    • B60C11/03—Tread patterns
    • B60C11/12—Tread patterns characterised by the use of narrow slits or incisions, e.g. sipes
    • B60C11/1272—Width of the sipe
    • B60C11/1281—Width of the sipe different within the same sipe, i.e. enlarged width portion at sipe bottom or along its length
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
    • B60C11/00—Tyre tread bands; Tread patterns; Anti-skid inserts
    • B60C11/03—Tread patterns
    • B60C2011/0337—Tread patterns characterised by particular design features of the pattern
    • B60C2011/0339—Grooves
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
    • B60C11/00—Tyre tread bands; Tread patterns; Anti-skid inserts
    • B60C11/03—Tread patterns
    • B60C11/12—Tread patterns characterised by the use of narrow slits or incisions, e.g. sipes
    • B60C11/1272—Width of the sipe
    • B60C2011/1286—Width of the sipe being different from sipe to sipe
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/80—Technologies aiming to reduce greenhouse gasses emissions common to all road transportation technologies
    • Y02T10/86—Optimisation of rolling resistance, e.g. weight reduction 

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Tires In General (AREA)

Abstract

The invention provides a pneumatic tire of an all-terrain vehicle for rock climbing and a tread pattern structure thereof, wherein the tread pattern structure comprises a plurality of pattern units; the pattern units are arranged on the tread of the pneumatic tire at intervals along the circumferential direction of the pneumatic tire, the pattern units comprise center pattern blocks positioned at the center of the tread, and the pattern units further comprise at least two shoulder pattern blocks positioned at two sides of the center of the tread; the tire shoulder pattern blocks are divided into a first tire shoulder pattern block and a second tire shoulder pattern block; the first shoulder blocks and the second shoulder blocks are arranged at intervals along the circumferential direction of the pneumatic tire; the pattern unit also comprises a plurality of main pattern grooves distributed on the central pattern block and the shoulder pattern blocks, the edges of the two sides of the main pattern grooves are not parallel and are provided with a plurality of turning parts, and the width of the main pattern grooves is gradually reduced to zero towards the edge directions of the central pattern block and the shoulder pattern blocks. By the technical scheme, the traction performance of the pneumatic tire on the rock ground can be improved.

Description

Pneumatic tire of all-terrain vehicle for rock climbing and tread pattern structure of pneumatic tire
Technical Field
The invention relates to a pneumatic tire of an all-terrain vehicle for rock climbing and a tread pattern structure thereof.
Background
In recent years, all-terrain vehicles are popular with most consumers because of being used on various off-road roads, and more all-terrain vehicle related events are attracting attention, and particularly in foreign markets, various all-terrain vehicle related events are actively participated by wide lovers. To seek a more surprise-stimulated driving experience, all-terrain vehicle events exist that are climbing on rocky roads. As shown in fig. 1, the tire shoulder-to-bead blocks of an all-terrain vehicle tire commonly used on a rocky ground employ regular pattern lugs 1', the lugs of the beads have only a single ground contact surface, the ground contact edges of the pattern lugs are limited, and the traction of the beads is insufficient. Meanwhile, the surface of a tread pattern block of a common all-terrain vehicle tire is often designed with fine grooves, but in order to meet the durability of the vehicle, the fine grooves 2' on the tread pattern block of the conventional all-terrain vehicle tire are often arranged with the same width, namely, the groove edges are arranged in parallel, so that the deformation capability of a single pattern block is insufficient, the rock ground cannot be effectively grasped, the phenomenon that the tire slips on the rock ground is easy to generate, and the traction of the tire is poor. In addition, when the tire runs on a rock ground, the impact of external sharp stone on the bottom surface of a tread groove often occurs, and the tire is easy to cut and crack, so that the durability performance of the tire is also important.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provide a tread pattern structure of a pneumatic tire of an all-terrain vehicle for rock climbing.
In order to solve the technical problems, the invention provides a tread pattern structure of a pneumatic tire of an all-terrain vehicle for climbing, which comprises a plurality of pattern units; the pattern units are arranged on the tread of the pneumatic tire at intervals along the circumferential direction of the pneumatic tire, the pattern units comprise center pattern blocks positioned at the center of the tread, and the pattern units further comprise at least two shoulder pattern blocks positioned at two sides of the center of the tread; the tire shoulder pattern blocks are divided into a first tire shoulder pattern block and a second tire shoulder pattern block; the first shoulder blocks and the second shoulder blocks are arranged at intervals along the circumferential direction of the pneumatic tire; the pattern units further comprise a plurality of main pattern grooves distributed on the central pattern blocks and the shoulder pattern blocks, the edges of the two sides of the main pattern grooves are not parallel and are provided with a plurality of turning positions, and the widths of the main pattern grooves are gradually reduced to zero towards the edge directions of the central pattern blocks and the shoulder pattern blocks; the main pattern groove of one or two of the center pattern block, the first shoulder pattern block and the second shoulder pattern block comprises a main groove body and a bifurcation groove body.
In a more preferred embodiment, the pattern unit further comprises a plurality of auxiliary grooves distributed over the central block and the shoulder blocks; the edges of the auxiliary pattern grooves are parallel and L-shaped, and the widths of the same auxiliary pattern grooves are the same.
In a more preferred embodiment, the head ends of the auxiliary pattern grooves are sealed in the edges of the central pattern blocks and the shoulder pattern blocks, and the tail ends of the auxiliary pattern grooves penetrate through the edges of the central pattern blocks and the shoulder pattern blocks.
In a more preferred embodiment, the ends of the main pattern grooves are located between the trailing ends of the two auxiliary pattern grooves.
In a more preferred embodiment, the ratio of the maximum width of the main pattern groove to the width of the auxiliary pattern groove is 2-5, and the included angle of the inner edge of the auxiliary pattern groove is 60-145 degrees.
In a more preferred embodiment, the circumferential and axial spacing of the center and shoulder blocks includes a plurality of secondary ribs, the edges of the secondary ribs being non-parallel on either side and having a plurality of turns, the secondary ribs being shaped to conform to the primary grooves and the same secondary ribs being of different widths, at least one end of the secondary ribs being connected to the primary grooves on the blocks.
In a more preferred embodiment, the first shoulder block is provided with a Z-shaped dividing groove, and the Z-shaped dividing groove divides the first shoulder block into an inner shoulder block and an outer shoulder block; the tire comprises an inner tire shoulder pattern block, an outer tire shoulder pattern block, an auxiliary pattern groove, a first tire shoulder pattern block, a second tire shoulder pattern block, a first tire shoulder pattern block, a second tire shoulder pattern block, a third tire shoulder pattern block, a fourth tire shoulder pattern block and a fourth tire shoulder pattern block.
In a more preferred embodiment, the first shoulder block extends past the shoulder and to the bead, a portion of the first shoulder block past the shoulder being separated by a first groove into irregularly shaped first and second side blocks; the first edge pattern block is arranged close to the tire shoulder, and the second edge pattern block is arranged far away from the tire shoulder; the second shoulder pattern blocks extend to pass through the tire shoulders and extend to tire edges, and the portions of the second shoulder pattern blocks passing through the tire shoulders are separated into third side pattern blocks and fourth side pattern blocks in irregular shapes by second grooves; the third side blocks are arranged close to the tire shoulder, and the fourth side blocks are arranged far away from the tire shoulder.
In a more preferred embodiment, the first side block includes an L-shaped first side groove; the second side block comprises at least one first step surface, and the first step surface is positioned on one side of the second side block away from a tire shoulder and/or one side of the second side block along the circumferential direction of the pneumatic tire; the third side block comprises an L-shaped second side groove; the fourth block includes at least one second step surface on a side of the fourth block away from the shoulder and/or on a side of the fourth block in the circumferential direction of the pneumatic tire.
In a more preferred embodiment, the portion of the first shoulder block located at the shoulder comprises a notch.
The invention also provides a pneumatic tire of the all-terrain vehicle for rock climbing, and the pneumatic tire also comprises the tread pattern structure.
Compared with the prior art, the technical scheme of the invention has the following beneficial effects:
1. the edges of the two sides of the main pattern groove are not parallel and are provided with a plurality of turning positions; when the pneumatic tire runs on the rock ground, the central pattern blocks and the shoulder pattern blocks can firmly grasp the rock, so that the traction of the pneumatic tire on the rock ground is effectively improved;
2. the width of the main pattern groove gradually reduces to zero towards the edge direction of the central pattern block and the shoulder pattern block. Therefore, the rigidity of the edges of the central pattern block and the shoulder pattern blocks can be enhanced, the premature damage of the pattern blocks is avoided, and the durability of the tire is ensured.
Drawings
FIG. 1 is a schematic view of a prior art tire tread pattern development;
fig. 2 is an expanded schematic view of a tread pattern structure in a preferred embodiment of the present invention.
FIG. 3 is a schematic view of a pattern unit in a preferred embodiment of the invention;
FIG. 4 is a schematic view of a center block and shoulder blocks in a preferred embodiment of the present invention;
fig. 5 is a schematic view of a center block in a preferred embodiment of the present invention.
Detailed Description
The invention is further described below with reference to the drawings and detailed description.
Certain directional terms used hereinafter to describe the drawings, such as "inner", "outer", "above", "below" and other directional terms, will be understood to have their normal meaning and refer to those directions as they would be when viewing the drawings. Unless otherwise indicated, directional terms described herein are generally in accordance with conventional directions as understood by those skilled in the art.
The terms "first," "second," and the like, as used herein, do not denote any order, quantity, or importance, but rather are used to distinguish one element from another.
In fig. 2, the vertical direction is set as the tire circumferential direction, the direction perpendicular to the paper surface is set as the tire radial direction, the lateral direction is set as the tire axial direction, the direction close to the tire center plane is the axial inner side, and the direction far from the tire center plane is the axial outer side.
Referring to fig. 2 to 5, a tread pattern structure of a pneumatic tire of an all-terrain vehicle for rock climbing, the tread pattern structure including a plurality of pattern units 100; the pattern units 100 are arranged on the tread of the pneumatic tire at intervals along the circumferential direction of the pneumatic tire, the pattern units 100 comprise a center pattern block 1 positioned at the center of the tread, and the pattern units 100 further comprise at least two shoulder pattern blocks positioned at two sides of the center of the tread; the pattern unit 100 further comprises a plurality of main pattern grooves 3 distributed on the central pattern block 1 and the shoulder pattern blocks, wherein the two side edges of the main pattern grooves 3 are not parallel and are provided with a plurality of turning points.
The shoulder blocks are divided into a first shoulder block 21 and a second shoulder block 22; the first shoulder blocks 21 and the second shoulder blocks 22 are arranged at intervals along the circumferential direction of the pneumatic tire. In the present embodiment, the pattern unit 100 includes two center blocks 1, two first shoulder blocks 21, and two second shoulder blocks 22, and the two center blocks 1, the two first shoulder blocks 21, and the two second shoulder blocks 22 are each in a center symmetrical pattern with respect to each other. Namely: the center block 1, the first shoulder block 21 and the second shoulder block 22 on two sides of the center plane of the two treads are overlapped after rotating 180 degrees around the symmetrical centers of the center block 1, the first shoulder block 21 and the second shoulder block 22.
The edges of the two sides of the main pattern grooves 3 on the central pattern block 1, the first shoulder pattern block 21 and the second shoulder pattern block 22 are not parallel and are provided with a plurality of turning parts, the whole body is formed into an irregular shape, the deformation capacity of each direction of the pattern blocks can be increased, when the pneumatic tire runs on the rock ground, the central pattern block 1, the first shoulder pattern block 21 and the second shoulder pattern block 22 can firmly grasp the rock, and the traction of the pneumatic tire on the rock ground is effectively improved.
The width D of the main pattern groove 3 gradually decreases to zero toward the edges of the center block 1 and the shoulder blocks, that is, the width D of the main pattern groove 3 decreases toward the edges of the center block 1 and the shoulder blocks until the edges of the center block 1 and the shoulder blocks decrease to zero. In this way, the rigidity of the edges of the central block 1, the first shoulder block 21 and the second shoulder block 22 can be reinforced, the premature destruction of the blocks is avoided, and the endurance performance of the tire is ensured.
The main groove 3 of one or both of the center block 1, the first shoulder block 21, and the second shoulder block 22 includes a main groove body 31 and a bifurcated groove body 32. The main pattern groove 3 may or may not be provided with a bifurcation groove 32. In the present embodiment, the main grooves 3 of the center block 1 and the second shoulder block 22 are provided with the branch groove bodies 32, and the main grooves 3 of the first shoulder block 21 are not provided with the branch groove bodies 32. This can balance the rigidity of each block of the tread and ensure that the durability of the tire is not degraded.
The pattern unit 100 further includes a plurality of auxiliary grooves 4 distributed on the center block 1 and the shoulder blocks; the edges of the auxiliary pattern grooves 4 are parallel and L-shaped, and the widths D2 of the same auxiliary pattern grooves 4 are the same; the head end 41 of the auxiliary pattern groove 4 is sealed in the edges of the central pattern block 1 and the shoulder pattern block, and the tail end 42 of the auxiliary pattern groove 4 penetrates through the edges of the central pattern block 1 and the shoulder pattern block. The integral matching arrangement of the main pattern groove 3 and the auxiliary pattern groove 4 can promote the deformability of the central pattern block 1, the first shoulder pattern block 21 and the second shoulder pattern block 22, and enhance the traction of the tire on rock terrain.
The end 33 of the main pattern groove 3 is located between the trailing ends 42 of the two auxiliary pattern grooves 4. At least two auxiliary pattern grooves 4 are arranged on the same pattern block. The end 33 of the main pattern groove 3 and the tail end 42 of the auxiliary pattern groove 4 are arranged at intervals on the same pattern block, namely, the end 33 of the main pattern groove 3 is positioned between the tail ends 42 of the two auxiliary fine grooves. Therefore, the overall rigidity of the pattern block can be balanced, the independent deformability of the pattern block can be increased, and the improvement of the traction performance of the pattern block is effectively facilitated.
The ratio of the maximum width D1 of the main pattern groove 3 to the width D2 of the auxiliary pattern groove 4 is 2-5. Too large a main groove 3 width will excessively decrease the block strength, making the blocks susceptible to early failure, leading to a tendency for tire durability to decrease; too small a width of the main lug groove 3 will cause a decrease in the deformability of the tire, thereby affecting the traction performance of the tire.
The included angle alpha of the inner edge of the auxiliary pattern groove 4 is 60-145 degrees. Too large an included angle alpha of the inner edge of the auxiliary groove 4 will reduce the deformability of the blocks, affect the traction improvement of the tire, and too small an included angle alpha of the inner edge of the auxiliary groove 4 will lose the edge strength of the blocks, resulting in the decrease of the durability of the tire.
The circumferential and axial intervals of the central pattern block 1 and the shoulder pattern blocks comprise a plurality of auxiliary pattern ribs 5, and the two side edges of the auxiliary pattern ribs 5 are not parallel and are provided with a plurality of turning points. Which can enhance the groove bottom strength at the block interval and ensure the endurance performance of the tire. The shape of the auxiliary rib 5 is consistent with that of the main rib groove 3, namely, the two side edges of the auxiliary rib 5 are not parallel and are provided with a plurality of turning parts, and the irregular edge shape is integrally formed, so that the groove bottom surfaces at different block interval positions can be protected, and the durability of the tire is ensured. The same secondary ribs 5 are not of the same width. At least one end of the sub rib 5 located on the tread portion is connected to the main groove 3 on the block, so that the block edge and the groove bottom surface can be formed integrally, ensuring sufficient strength. Branch ribs can be arranged in the auxiliary ribs 5, so that the problem that the overall deformability of the tire is influenced due to overlarge local strength at the intervals of the blocks, and the traction performance of the tire is reduced is avoided.
The first shoulder block 21 is provided with a Z-shaped dividing groove 211, and the Z-shaped dividing groove 211 divides the first shoulder block 21 into an inner shoulder block 212 and an outer shoulder block 213, so that insufficient deformation capacity caused by excessively strong local rigidity of the first shoulder block 21 can be effectively avoided, and balance of traction performance of the tire is ensured. At least two main grooves 3 of the first shoulder block 21 are provided, and are respectively provided on the shoulder block 212 and the shoulder block 213.
The first shoulder block 21 extends past the shoulder and to the bead, and a portion of the first shoulder block 21 passing the shoulder is partitioned by a first groove 217 into irregularly shaped first and second side blocks 214 and 215. The first side block 214 is disposed proximate to the shoulder and the second side block 215 is disposed distal to the shoulder. The first side block 214 includes an L-shaped first side groove 214a, the head end of the first side groove 214a is enclosed in the first side block 214, the tail end of the first side groove 214a penetrates through the edge of the first side block 214, and the first side groove 214a can promote the deformability of the first side block 214 when the first side block 214 is grounded, thereby exhibiting good tire traction. The second side block 215 includes at least one first step surface 215a, and the first step surface 215a is located on a side of the second side block 215 away from the shoulder and/or on a side of the second side block 215 in the circumferential direction of the pneumatic tire. When the pneumatic tire is trapped in the rock pinch, the first step surface 215a may improve bead block traction, increasing the tire's ability to slip out. The shoulder-located portion of the first shoulder block 21 includes a notch 216, the notch 216 being located on the axially extending side of the first shoulder block 21. The notch 216 can increase the grounding edge of the first shoulder block 21 at the tire shoulder, and can radiate heat, so that the block damage caused by too high local temperature rise of the rubber material is avoided, and the durability of the tire is finally affected.
In the present embodiment, the auxiliary groove 4 on the second shoulder block 22 is located axially inward of the second shoulder block 22, and the main groove 3 is located axially outward of the second shoulder block 22.
The second shoulder block 22 extends through the shoulder and to the bead, and a portion of the second shoulder block 22 passing through the shoulder is partitioned into irregularly shaped third and fourth side blocks 221 and 222 by a second groove 223. The third side block 221 is disposed proximate to the shoulder and the fourth side block 222 is disposed distal to the shoulder. The third side block 221 includes an L-shaped second side groove 221a, the head end of the second side groove 221a is sealed in the third side block 221, the tail end of the second side groove 221a penetrates through the edge of the third side block 221, the second side groove 221a can promote the deformation capability of the third side block 221 when in contact with the ground, and good tire traction performance is exerted; the fourth block 222 includes at least one second step surface 222a, the second step surface 222a being located on a side of the fourth block 222 remote from the shoulder and/or on a side of the fourth block 222 in the circumferential direction of the pneumatic tire, the second step surface 222a being capable of improving the bead block traction performance when the tire is trapped in the rock pinch, increasing the tire's slip-off capability.
The foregoing is only a preferred embodiment of the present invention, but the design concept of the present invention is not limited thereto, and any person skilled in the art will be able to make insubstantial modifications of the present invention within the scope of the present invention disclosed herein by this concept, which falls within the actions of invading the protection scope of the present invention.

Claims (8)

1. The tread pattern structure of the pneumatic tire of the all-terrain vehicle for climbing rock is characterized by comprising a plurality of pattern units; the pattern units are arranged on the tread of the pneumatic tire at intervals along the circumferential direction of the pneumatic tire, the pattern units comprise center pattern blocks positioned at the center of the tread, and the pattern units further comprise at least two shoulder pattern blocks positioned at two sides of the center of the tread; the tire shoulder pattern blocks are divided into a first tire shoulder pattern block and a second tire shoulder pattern block; the first shoulder blocks and the second shoulder blocks are arranged at intervals along the circumferential direction of the pneumatic tire; the pattern units further comprise a plurality of main pattern grooves distributed on the central pattern blocks and the shoulder pattern blocks, the edges of the two sides of the main pattern grooves are not parallel and are provided with a plurality of turning positions, the widths of the main pattern grooves gradually decrease to zero towards the edge directions of the central pattern blocks and the shoulder pattern blocks, and the widths of the main pattern grooves are zero at the edges of the central pattern blocks and the shoulder pattern blocks;
the main pattern groove of one or two of the central pattern block, the first tire shoulder pattern block and the second tire shoulder pattern block comprises a main groove body and a bifurcation groove body;
the pattern units further comprise a plurality of auxiliary pattern grooves distributed on the central pattern blocks and the tire shoulder pattern blocks; the edges of the auxiliary pattern grooves are parallel and L-shaped, and the widths of the same auxiliary pattern grooves are the same;
the circumferential and axial spacing parts of the central pattern block and the shoulder pattern blocks comprise a plurality of auxiliary pattern ribs, the edges of two sides of each auxiliary pattern rib are not parallel and are provided with a plurality of turning parts, and at least one end part of each auxiliary pattern rib is connected with a main pattern groove on the pattern block.
2. The tread pattern structure of a pneumatic tire of an all-terrain vehicle for rock climbing as recited in claim 1, wherein: the head ends of the auxiliary pattern grooves are sealed in the edges of the central pattern blocks and the tire shoulder pattern blocks, and the tail ends of the auxiliary pattern grooves penetrate through the edges of the central pattern blocks and the tire shoulder pattern blocks.
3. The tread pattern structure of a pneumatic tire of an all-terrain vehicle for rock climbing as recited in claim 2, wherein: the ends of the main pattern grooves are positioned between the tail ends of the two auxiliary pattern grooves.
4. The tread pattern structure of a pneumatic tire of an all-terrain vehicle for rock climbing as recited in claim 3, wherein: the ratio of the maximum width of the main pattern groove to the width of the auxiliary pattern groove is 2-5, and the included angle of the inner edge of the auxiliary pattern groove is 60-145 degrees.
5. The tread pattern structure of a pneumatic tire of an all-terrain vehicle for rock climbing as recited in claim 1, wherein: the first tire shoulder pattern block is provided with a Z-shaped dividing groove, and the Z-shaped dividing groove divides the first tire shoulder pattern block into an inner tire shoulder pattern block and an outer tire shoulder pattern block; the tire comprises an inner tire shoulder pattern block, an outer tire shoulder pattern block, an auxiliary pattern groove, a first tire shoulder pattern block, a second tire shoulder pattern block, a first tire shoulder pattern block, a second tire shoulder pattern block, a third tire shoulder pattern block, a fourth tire shoulder pattern block and a fourth tire shoulder pattern block.
6. The tread pattern structure of a pneumatic tire of an all-terrain vehicle for rock climbing as recited in claim 1, wherein: the first shoulder block extends to pass through the tire shoulder and extends to the tire bead, and the part of the first shoulder block passing through the tire shoulder is divided into a first edge block and a second edge block with irregular shapes by a first groove; the first edge pattern block is arranged close to the tire shoulder, and the second edge pattern block is arranged far away from the tire shoulder; the second shoulder pattern blocks extend to pass through the tire shoulders and extend to tire edges, and the portions of the second shoulder pattern blocks passing through the tire shoulders are separated into third side pattern blocks and fourth side pattern blocks in irregular shapes by second grooves; the third side blocks are arranged close to the tire shoulder, and the fourth side blocks are arranged far away from the tire shoulder.
7. The tread pattern structure of a pneumatic tire of an all-terrain vehicle for rock climbing as in claim 6, wherein: the first side pattern block comprises an L-shaped first side groove; the second side block comprises at least one first step surface, the first step surface is positioned on one side of the second side block away from a tire shoulder and/or one side of the second side block along the circumferential direction of the pneumatic tire, and the third side block comprises an L-shaped second side groove; the fourth block includes at least one second step surface on a side of the fourth block away from the shoulder and/or on a side of the fourth block in the circumferential direction of the pneumatic tire.
8. The tread pattern structure of a pneumatic tire of an all-terrain vehicle for rock climbing as in claim 6, wherein: the portion of the first shoulder block located at the shoulder includes a notch.
CN202210109248.6A 2022-01-28 2022-01-28 Pneumatic tire of all-terrain vehicle for rock climbing and tread pattern structure of pneumatic tire Active CN114919339B (en)

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CN114919339B true CN114919339B (en) 2023-11-03

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