Industrial tire for enhanced grip on wet and slippery road surfaces

Abstract

The utility model discloses an industrial tire of enhancing the wet and slippery road surface grip, belongs to the field of tire technology. Crown part of tread adopts herringbone main pattern, and the pattern saturation is 60% 65%, and 6 7 docking ground pattern blocks are formed under the standard load, every pattern block is equipped with 3mm width cutter groove and 6mm width longitudinal groove, and the depth is all 1 / 3 of pattern block depth, and the cross forms the gridlike drainage channel, and the main pattern groove is gradually wide from the tread center to the shoulder, and the bottom is equipped with the stone block of increasing height, and the stone block of tread area is connected through R0.5 arc air line, and the shoulder is equipped with the square stone block group of intermittent arrangement. The design improves the drainage efficiency and the sundry discharge capacity through the optimization pattern structure and the groove parameter, enhances the wet and slippery road surface friction grip, and simultaneously improves the shoulder support and the heat dissipation performance, is applicable to the safe driving of industrial vehicle under the complex road condition.

Description

Technical Field

[0001] This application relates to the field of tire technology, specifically to an industrial tire that enhances grip on wet and slippery surfaces. Background Technology

[0002] Tire traction and handling performance are core elements ensuring safe vehicle operation. Excellent traction performance allows vehicles to travel smoothly on soft dirt roads, sandy surfaces, muddy roads, and icy roads, while maintaining high speeds and safety. This performance mainly depends on the tire's rolling resistance and road surface adhesion: the combination of low rolling resistance and high adhesion achieves optimal traction.

[0003] On hard surfaces, while reducing tire pressure can increase the contact area and improve traction, it usually comes at the cost of increased rolling resistance, resulting in limited improvement in traction performance. On soft surfaces, however, reducing tire pressure can simultaneously increase traction and reduce rolling resistance, significantly improving traction and handling performance.

[0004] Therefore, optimizing tire structure (especially tread pattern) to enhance ground adhesion and water / mud removal efficiency while maintaining appropriate rigidity is key to improving performance on wet and slippery roads. Current technologies employing soft tire bodies and large contact patch designs offer advantages in traction on hard surfaces, but their overall performance (water drainage, snow removal, and anti-slip) under complex wet and slippery conditions still needs improvement.

[0005] Chinese Patent CN104210318A discloses a tire that facilitates wet braking, comprising a tire body and a tire tread pattern on the tire body. The tire tread pattern includes first tread grooves evenly distributed along the circumference of the tire body, tread blocks between adjacent first tread grooves, and second tread grooves, third tread grooves, first sipes, and second sipes on the tread blocks. The second tread grooves connect to adjacent first tread grooves, the third tread grooves connect to the second tread grooves, and the second sipes are located at the junction of the second and third tread grooves, with sipes located on both sides of the first tread grooves. This invention provides drainage and air venting performance, and the lateral tread grooves provide good driving and braking performance. The combined use of lateral and longitudinal tread grooves provides good wet braking and high-speed performance. However, the first, second, and third tread grooves in the above device have an equal width structure, which cannot quickly dissipate snow, water, mud, and other debris. Clogged grooves can lead to water film residue, increasing the risk of hydroplaning or slippage. Therefore, those skilled in the art urgently need to solve the above technical problems. Utility Model Content

[0006] This application provides a solution to the technical problems mentioned in the background art, which aims to improve the grip of tires when running on wet and slippery surfaces and enhance the anti-skid properties of tires.

[0007] To achieve the above objectives, this application provides the following technical solution:

[0008] An industrial tire that enhances grip on wet and slippery surfaces, wherein the tread is provided with a herringbone pattern, the pattern saturation of which is 60%-65%, and the tire forms 6-7 pairs of contact tread blocks under standard load;

[0009] Each of the tread blocks has a longitudinal groove in the front 1 / 3 area along the driving direction, and a 3mm wide dagger is formed on the surface of the tread block. The longitudinal groove is 6mm wide, and the depth of the dagger and the longitudinal groove are both 1 / 3 of the depth of the tread block.

[0010] The tread is provided with main tread grooves, which are set from the center of the tread towards the shoulders on both sides in a gradually widening manner;

[0011] The bottom of the main tread groove is provided with raised pebble structures, and the height of the pebble structures gradually increases from the tread towards the shoulder; the pebble structures in the tread area are connected by arc-shaped air lines with an R0.5 radius.

[0012] The tire shoulder is provided with groups of square stones arranged intermittently along the circumference of the tire, and each group of square stones contains 2 square stones.

[0013] By adopting the above technical solution, the tire tread uses a figure-eight pattern as the main pattern and controls the pattern saturation to 60%-65%. Under standard load, 6-7 pairs of tread blocks are formed, ensuring the effective contact area between the tread blocks and the road surface, avoiding excessive sparseness that would lead to concentrated ground pressure, and reserving sufficient drainage space for the tread grooves. The figure-eight shape forms an acute angle with the tire rolling direction, which can break the water film on wet and slippery roads through the shearing action of the tread block edges. At the same time, the design of 6-7 pairs of ground contact tread blocks balances grip and rolling resistance, avoiding insufficient rigidity due to too many tread blocks or insufficient friction area due to too few tread blocks.

[0014] Furthermore, the width of the longitudinal groove is twice the width of the cutting groove, and the longitudinal groove and the cutting groove are intersected on the surface of the patterned block.

[0015] By adopting the above technical solution, a 3mm wide sipe and a 6mm wide longitudinal groove are formed on the surface of the tread block. Both grooves are one-third the depth of the tread block, and the longitudinal groove is located at the front one-third of the travel direction. This forms a grid-like drainage channel: the sipe quickly breaks the water film through the fine grooves, while the longitudinal groove serves as the main drainage path to remove water. At the same time, the shallow depth of the sipe enhances the local flexibility of the tread block, while the position and width control of the longitudinal groove ensures the rigidity of the front side of the tread block to cope with driving force, and the rear side absorbs impact through the deformation of the sipe, achieving synergistic optimization of grip and cushioning performance.

[0016] Furthermore, the width of the main tread groove increases continuously from the center of the tread towards the shoulder, and the depth of the main tread groove is consistent with the depth of the longitudinal groove.

[0017] By adopting the above technical solution, the main tread grooves gradually widen from the center of the tread towards the shoulder, forming a continuously increasing guide channel. When the tire rolls, the narrow central groove section can quickly collect water, snow particles, or mud, which are then accelerated out through the gradually widening grooves, using centrifugal force to improve the efficiency of waste removal. At the same time, the gradually changing width structure avoids the bottleneck effect of traditional equal-width grooves, preventing debris from clogging the middle of the grooves and significantly reducing the hydroplaning effect on wet roads and the risk of getting stuck on muddy roads.

[0018] Furthermore, the height of the pebble structure increases in a stepped manner from the tread to the shoulder, and the arc-shaped air lines are continuously arranged along the extension direction of the main tread groove.

[0019] By adopting the above technical solution, the height of the pebbles at the bottom of the groove increases in a stepped manner from the crown to the shoulder, and the pebbles at the crown are connected by an R0.5 arc-shaped air line. The stepped height design can use the height difference to push the pebbles embedded in the groove, and with the continuous support structure of the arc-shaped air line, it can not only avoid the bottom of the groove from cracking due to pebbles getting stuck, but also disperse the stress concentration at the bottom of the groove through the arc transition; at the same time, the micro air storage channels formed by the air line can discharge air when the patterned blocks are compressed, reducing the interference of negative pressure in the groove on drainage efficiency.

[0020] Furthermore, the square stone blocks are evenly spaced along the tangent of the tire shoulder, and the distance between two adjacent groups of square stone blocks is not less than the side length of the square stone block.

[0021] By adopting the above technical solution, two square stone blocks are intermittently arranged along the tangential direction on the tire shoulder, with heat dissipation gaps between adjacent groups. The square structure enhances the tire shoulder's resistance to deformation through point support, preventing ground contact deviation caused by excessive bulging of the tire shoulder under heavy load conditions; the intermittent arrangement design forms a natural heat dissipation channel, which, together with the airflow gaps between the stones, can quickly dissipate heat from the tire shoulder, reducing the risk of tire temperature accumulation during high-speed driving. At the same time, the raised structure of the stones can also assist in mud removal and prevent blockage of the tire shoulder grooves.

[0022] Furthermore, the sipes extend laterally along the tread block, the longitudinal grooves extend circumferentially along the tire, and the sipes and the longitudinal grooves form a grid-like drainage channel on the surface of the tread block.

[0023] By adopting the above technical solution, the sipes and longitudinal grooves form a 2:1 width gradient, and the two are intersecting on the surface of the tread blocks. When the tire contacts the ground, the narrow sipes preferentially cut into the water film to form the initial rupture point, while the wide grooves quickly drain water through a larger drainage cross-section. At the same time, the lateral extension of the sipes and the circumferential extension of the longitudinal grooves create a grid cutting effect, increasing the number of tread block edges and improving the micro-friction coefficient between the rubber and the road surface. This significantly enhances grip, especially on wet and slippery roads with shallow water depth.

[0024] The beneficial effects of this utility model are as follows:

[0025] 1. This utility model adopts an eight-shaped main pattern and controls the pattern saturation to 60%-65%, forming 6-7 pairs of grounding pattern blocks under standard load, which optimizes the grounding area and pressure distribution, avoids excessive sparseness leading to grounding pressure concentration or too many pattern blocks causing insufficient rigidity, and balances grip and rolling resistance.

[0026] 2. This utility model improves the drainage efficiency and cushioning performance of wet and slippery road surfaces by creating a 3mm wide lateral groove and a 6mm wide longitudinal groove along the circumference of the tire crown on the surface of the tread block, forming a grid-like drainage channel with cross distribution.

[0027] 3. This utility model constructs a directional waste removal channel by gradually widening the main tread groove from the center of the tread towards the shoulder, which accelerates the removal of snow, water, mud and other debris, avoids the phenomenon of traditional equal-width grooves making it difficult to remove debris, and reduces the risk of water drift and sinking.

[0028] 4. This utility model uses a stepped increasing design of the height of the stones at the bottom of the groove and an R0.5 arc-shaped air line connection to push and embed the stones and disperse the stress at the bottom of the groove by the height difference. At the same time, the intermittent arrangement of square stones on the tire shoulder enhances the rigidity of the tire shoulder support and the heat dissipation area, thereby improving the ability to resist stone trapping, structural durability and high-speed driving stability. Attached Figure Description

[0029] Figure 1 This is a schematic diagram showing the unfolded pattern of this utility model;

[0030] Figure 2 This utility model Figure 1 Cross-sectional view along the A-A direction;

[0031] Figure 3 This is a partial schematic diagram of the left view of this utility model.

[0032] In the picture:

[0033] 1-Shoulder; 2-Tread; 21-Grounding tread block; 211-Longitudinal groove; 212-Main tread groove; 3-Sipe; 4-Air line; 5-Pebble. Detailed Implementation

[0034] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0035] Reference Figure 1 , Figure 2 , Figure 3 It can be seen that an industrial tire with enhanced grip on wet and slippery roads includes a tread 2 and a shoulder 1. The tread 2 is provided with a herringbone main tread pattern, with a tread saturation of 60%-65%, forming 6-7 pairs of ground contact tread blocks 21 under standard load. Each ground contact tread block 21 has a 6mm wide longitudinal groove 211 in the front 1 / 3 area along the driving direction, and a 3mm wide sipe 3 on its surface. The depth of both is 1 / 3 of the depth of the ground contact tread block 21, and the longitudinal groove 211 and the sipe 3 are intersected to form a grid-like drainage channel; the main tread 2... The tread groove 212 gradually widens from the center towards both sides of the tire shoulder 1, and its depth is consistent with the longitudinal groove 211. The bottom of the main tread groove 212 is provided with a raised pebble block 5 structure, the height of which increases in a stepped manner from the tread 2 to the tire shoulder 1. The pebble blocks 5 in the tread 2 area are continuously connected along the extension direction of the main tread groove 212 by R0.5 arc-shaped air lines 4. The tire shoulder 1 is provided with a group of 5 square pebble blocks 5 arranged intermittently along the circumference. Each group contains 2 square pebble blocks 5, which are evenly spaced along the tangent direction of the tire shoulder 1, and the distance between adjacent groups is not less than the side length of the square pebble block 5.

[0036] In one embodiment, refer to Figure 2As can be seen, by setting a herringbone pattern main tread on the crown of the tread and controlling the tread saturation at 60%-65%, the tire forms 6-7 pairs of contact tread blocks 21 under standard load, achieving optimization of the crown's herringbone pattern and parameters, effectively enhancing the friction and grip performance on wet and slippery roads. This invention achieves refined groove and sipe design by creating a 3mm wide groove 3 on each main contact tread block 21 and adding a 6mm wide longitudinal groove 211 at the front 1 / 3 of the contact tread block 21 in the driving direction. The depth of both the groove 3 and the longitudinal groove 211 is 1 / 3 of the depth of the contact tread block 21. This increases the local softness of the tread block to improve contact adaptability and heat dissipation, and forms an efficient drainage channel to improve road contact effect. The crown main tread groove 21... The design features a gradually widening tread groove structure from the center of the tread 2 towards both shoulders 1, achieving a variable width tread groove drainage design. This ensures that snow, water, mud, and other debris can be quickly ejected along the grooves, reducing the risk of water drift or slippage due to blockage. The bottom of the tread grooves is designed with raised stone blocks 5 whose height gradually increases from the crown to the shoulder. The stone blocks 5 in the crown area are connected by an R0.5 arc-shaped air line 4, achieving anti-stone trapping and groove bottom reinforcement design. This not only helps to expel embedded stones and other foreign objects but also reinforces the bottom of the tread grooves to reduce cracking problems. In the shoulder 1 area, there are 5 groups of 2 square stone blocks arranged intermittently, achieving shoulder support and heat dissipation design. This provides strong support for the shoulder to enhance overall stability and wear resistance, and increases the heat dissipation area to optimize heat dissipation performance under heavy load conditions.

[0037] In one embodiment, refer to Figure 3 It can be seen that the herringbone main pattern of the tread 2 and the 60%-65% pattern saturation form 6-7 pairs of ground contact tread blocks 21. Their figure-eight orientation forms an acute angle with the tire rolling direction, which can break the water film through the shearing action of the tread block edges. The 3mm wide sipes 3 on the surface of each ground contact tread block 21 extend laterally and the 6mm wide longitudinal grooves 211 extend along the circumference of the tire crown, forming a grid-like drainage channel. The sipes 3 preferentially break the water film, while the longitudinal grooves 211 serve as the main drainage path to quickly drain water. The crown main tread grooves 212 originate from the tread 2. The gradually widening structure towards the shoulder 1 utilizes centrifugal force to accelerate the ejection of snow, water, mud, and other debris along the grooves from the narrow to the wide section, avoiding the bottleneck effect of traditional equal-width grooves. The stepped stone block structure 5 at the bottom of the tread grooves, with its height increasing from the tread 2 to the shoulder 1, combined with the continuous support formed by the R0.5 arc-shaped air line 4, can push the stones embedded in the grooves and reduce the blockage at the bottom of the grooves. At the same time, the heat dissipation gaps between the two square stone blocks in each group of the intermittently arranged square stone blocks 5 on the shoulder 1 further assist in the ejection of debris and reduce the risk of groove blockage, effectively reducing the risk of hydroplaning and slippage.

[0038] Working principle: The tread 2 adopts a herringbone pattern design with a tread saturation of 60%-65%. Under standard load, it forms 6-7 pairs of contact tread blocks 21. Their figure-eight shape forms an acute angle with the tire rolling direction, breaking the water film through the shearing action of the edges of the contact tread blocks 21. Each contact tread block 21 has a 6mm wide longitudinal groove 211 in the front 1 / 3 area along the driving direction, and a 3mm wide sipe 3 on its surface. Both grooves are 1 / 3 the depth of the contact tread block 21 and are intersecting. The sipe 3 extends laterally to break the water film, and the longitudinal groove 211 extends circumferentially as the main drainage path, forming a grid-like drainage channel. The main tread grooves 212 of the tread 2 are set from the center towards the shoulder 1, gradually widening from narrow to widening. They use centrifugal force to accelerate the ejection of snow, water, mud and other debris. Their depth is consistent with the longitudinal grooves 211 to ensure drainage efficiency. At the bottom of the main tread grooves 212, there are stones 5 with a height that increases in a stepped manner from the tread 2 to the shoulder 1. The stones 5 in the tread 2 area are connected by R0.5 arc-shaped air lines 4, which push and embed the stones and disperse the stress at the bottom of the groove. The shoulder 1 has 5 groups of square stones 5 arranged intermittently along the circumference, with 2 stones in each group. They are evenly distributed along the tangential direction to enhance the shoulder support rigidity and heat dissipation area, and synergistically improve the grip and structural stability on wet roads.

[0039] The above are merely preferred embodiments of this application, but the scope of protection of this application is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this application, based on the technical solution and concept of this application, should be included within the scope of protection of this application.

Claims

1. An industrial tire for enhancing grip on wet surfaces, comprising a tread (2) and a shoulder (1), characterized in that: The tread (2) is provided with a herringbone pattern, the pattern saturation of which is 60%-65%, and when the tire touches the ground under standard load, it forms 6-7 pairs of grounding pattern blocks (21). Each of the patterned blocks (21) has a longitudinal groove (211) in the front 1 / 3 area along the driving direction, and a 3mm wide dagger (3) is formed on the surface of the patterned block (21). The longitudinal groove (211) is 6mm wide, and the depth of the dagger (3) and the longitudinal groove (211) are both 1 / 3 of the depth of the patterned block (21). The tread (2) is provided with main tread grooves (212), which are gradually widened from the center of the tread (2) towards the shoulders (1) on both sides; The bottom of the main tread groove (212) is provided with a raised pebble (5) structure, and the height of the pebble (5) structure is set from shallow to deep from the tread (2) towards the shoulder (1); the pebble (5) structures in the tread (2) area are connected by an arc-shaped air line (4) with an R0.

5. The tire shoulder (1) is provided with a group of square stones (5) arranged intermittently along the tire circumference, and each group of square stones (5) contains 2 square stones (5).

2. The industrial tire for enhancing grip on wet surfaces according to claim 1, characterized in that, The width of the longitudinal groove (211) is twice the width of the groove (3), and the longitudinal groove (211) and the groove (3) are intersected on the surface of the patterned block (21).

3. The industrial tire for enhancing grip on wet surfaces according to claim 1, characterized in that, The width of the main tread groove (212) increases continuously from the center of the tread (2) toward the shoulder (1), and the depth of the main tread groove (212) is consistent with the depth of the longitudinal groove (211).

4. The industrial tire for enhancing grip on wet surfaces according to claim 1, characterized in that, The height of the stone block (5) structure increases in a stepwise manner from the tread (2) to the shoulder (1), and the arc-shaped air line (4) is continuously set along the extension direction of the main tread groove (212).

5. The industrial tire for enhancing grip on wet surfaces according to claim 1, characterized in that, The square stone blocks (5) are evenly spaced along the tangent of the tire shoulder (1), and the distance between two adjacent groups of square stone blocks (5) is not less than the side length of the square stone blocks (5).

6. The industrial tire for enhancing grip on wet surfaces according to claim 1, characterized in that, The sipes (3) are provided to extend laterally along the tread block (21), and the longitudinal grooves (211) are provided to extend circumferentially along the tire. The sipes (3) and the longitudinal grooves (211) form a grid-like drainage channel on the surface of the tread block (21).

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