A tire pattern structure and tire with improved thermal wear

Abstract

The invention relates to the field of tires, in particular to a tire pattern structure and a tire with improved thermal wear. When the tire pattern is unfolded into a plane, the first pattern block group and the second pattern block group have the same structure and are arranged in an opposite staggered manner; the first pattern block group includes a hexagonal pattern block located on the inner side of the tread and a pentagonal pattern block located on the outer side of the tread; the first pattern block group and the second pattern block group are centrally symmetrical about the midpoint of the line connecting the corresponding vertices of the hexagonal pattern blocks in the first pattern block group and the hexagonal pattern blocks in the second pattern block group; the hexagonal pattern block is bilaterally symmetrical, and the upper side and the lower side of the hexagonal pattern block are arranged horizontally; the three sides located on the upper side of the hexagonal pattern block are equal in length, the three sides located on the lower side of the hexagonal pattern block are equal in length, and the sum of the lengths of the three sides on the upper side is different from the sum of the lengths of the three sides on the lower side; the patent changes the shape of the pattern block, reduces the extrusion deformation of the pattern block, and improves the tire life.

Description

Technical Field

[0001] The invention relates to the field of tires, in particular to a tire pattern structure and a tire capable of improving thermal wear. Background Art

[0002] Tire pattern is related to traction, braking, wear resistance, drainage and noise reduction. When designing the tread pattern of a truck tire, factors such as the road conditions, load capacity, driving speed, and climatic conditions are usually considered. Under normal circumstances, the longitudinal pattern has good guidance and drainage performance, low noise and low rolling resistance at high speed; the transverse pattern has better driving and braking performance than the longitudinal pattern, but the lateral slip is greater than the longitudinal pattern, with high noise and large rolling resistance; and the block pattern tire has the best dynamic performance. Its tire pattern is arranged in blocks. When the vehicle is driving on snow or muddy ground, the pattern is deeply embedded in the snow or mud, and the vehicle generates driving force. In the current domestic market environment, there are still some harsh conditions of use with high air pressure and load, such as mines or non-paved short-distance transportation conditions. Tires under this use condition are mostly block pattern tires to ensure driving, braking, wear resistance, etc. However, due to the high saturation of the pattern and the lack of heat dissipation performance, it is easy to cause excessive heat generation and cause defects. In addition, unreasonable tread block design may cause problems such as block falling and cracking on harsh roads.

[0003] The Chinese utility model patent (publication number: CN204249741U, publication date: 20150408) discloses a tread pattern structure of a medium-short distance all-steel load-bearing radial tire, in which a plurality of pattern block groups are distributed on the tread of the tire, including an inner pattern block group distributed along the circumference of the tire and an outer pattern block group distributed along the circumference of the tire. The inner or outer pattern block groups are symmetrically staggered along the center line of the tread, and form a through-going stepped transverse pattern groove, which gradually widens from the center of the tread to the shoulder, and a rubber nail is provided at the bottom of the groove; each inner pattern block is connected to the outer pattern block by a reinforcing rib. The utility model can improve the traction capacity of the tire and reduce the occurrence of stones stuck at the bottom of the groove and cracks at the bottom of the groove.

[0004] The shape of the above-mentioned pattern blocks is prone to deformation under long-term extrusion, resulting in a reduction in the life of the tire. Summary of the invention

[0005] To solve the above problems, the purpose of the present invention is to provide a tire pattern structure with improved thermal wear, change the shape of the pattern block, reduce the extrusion deformation of the pattern block, reduce tire thermal wear, and increase tire life.

[0006] For the purpose of the present invention, the following technical solutions are adopted to implement:

[0007] A tire pattern structure with improved thermal wear, comprising a central pattern groove located in the center of the tread and extending in a broken line along the circumference of the tire, a first pattern block group and a second pattern block group extending along the circumference of the tire are respectively arranged on the left and right sides of the central pattern groove; the first pattern block groups adjacent to each other in the longitudinal direction and the second pattern block groups adjacent to each other in the longitudinal direction are separated by transverse pattern grooves; the inner end of the transverse pattern groove is connected to the central pattern groove, and the outer end is connected to the outer side of the tire; the central pattern groove and the transverse pattern groove both include a plurality of continuous groove segments; When the tire pattern is unfolded into a plane, the first pattern block group and the second pattern block group have the same structure and are arranged in an opposite and staggered manner; the first pattern block group includes a hexagonal pattern block located on the inner side of the tread and a pentagonal pattern block located on the outer side of the tread; the first pattern block group and the second pattern block group are centrally symmetrical about the midpoint of the line connecting the corresponding vertices of the hexagonal pattern block in the first pattern block group and the hexagonal pattern block in the second pattern block group; the hexagonal pattern block and the pentagonal pattern block are separated by a longitudinal groove; the upper and lower ends of the longitudinal groove are connected to the transverse groove; The hexagonal pattern block is bilaterally symmetrical, and the upper and lower sides of the hexagonal pattern block are set horizontally; the three sides located on the upper side of the hexagonal pattern block are equal in length, and the three sides located on the lower side of the hexagonal pattern block are equal in length, but the sum of the lengths of the three sides on the upper side of the hexagonal pattern block is different from the sum of the lengths of the three sides on the lower side of the hexagonal pattern block; the upper right side and the lower right side of the hexagonal pattern block are surrounded by two groove sections of the central pattern groove; the upper and left sides of the hexagonal pattern block are surrounded by the hexagonal pattern block located on the upper side of the hexagonal pattern block. The tread block is surrounded by two sections of the transverse grooves above the tread block, the lower left side of the hexagonal block is surrounded by the longitudinal grooves; the lower part of the hexagonal block is surrounded by a section of the transverse grooves located below the hexagonal block; the upper part of the pentagonal block is surrounded by a section of the transverse grooves located above the pentagonal block; the upper right side of the pentagonal block is surrounded by the longitudinal grooves; the lower right side and lower part of the polygonal block are surrounded by two sections of the transverse grooves located below the polygonal block.

[0008] Preferably, the lengths of the three sides on the upper side of the hexagonal pattern block are all 33 mm, and the lengths of the three sides on the lower side of the hexagonal pattern block are all 45 mm.

[0009] Preferably, the central groove depth is 11 mm and the transverse groove depth is 21 mm.

[0010] Preferably, a plurality of heat dissipation openings extending toward the inside of the tread are provided at the groove bottom of the central groove, the heat dissipation openings are cylindrical, and the diameter of the heat dissipation openings is 4.5-5.5 mm and the depth is 5 mm.

[0011] Preferably, the hexagonal pattern blocks in the first pattern block group and the second pattern block are both provided with transverse small steel plate grooves, and the length of the small steel plate groove is 24 mm, the width is 3 mm, and the depth is 3 mm.

[0012] Preferably, the cross-section of the longitudinal groove is U-shaped and the depth is 10-12 mm.

[0013] Preferably, a plurality of stone-repelling rubber nails are arranged in the transverse grooves along the groove direction, and the length of the stone-repelling rubber nails is 10 mm, the width is 4 mm, the height is 4-5 mm, and the spacing is 3-4 mm.

[0014] Preferably, the width of the transverse groove increases from the inside to the outside.

[0015] Preferably, outer sides of the pentagonal pattern blocks in the first pattern block group and the second pattern blocks are provided with U-shaped grooves for generating heat.

[0016] A tire, the tread pattern of which adopts the above-mentioned tire pattern structure for improving thermal wear.

[0017] In summary, the advantages of the present invention are: the structure of the two rows of hexagonal pattern blocks in the middle is resistant to extrusion, which can reduce the deformation of the tread pattern blocks, reduce stress and strain, and help extend the wear life of the tire. The heat dissipation port allows the heat accumulated inside the tread to be dissipated in time, avoiding other defects caused by excessive heat generation, and greatly improving the heat generation performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of the present invention.

[0019] Figure 2 A side view of the tire tread.

[0020] Figure 3 for Figure 1 Schematic diagram of the structure at AA in the middle.

[0021] Figure 4 for Figure 1 Schematic diagram of the structure at BB in the middle.

[0022] Figure 5 for Figure 1 Schematic diagram of the structure at CC in the middle.

[0023] Figure 6 for Figure 1 Schematic diagram of the structure at DD in the figure.

[0024] Figure 7 for Figure 1 Schematic diagram of the structure at EE.

[0025] Figure 8 for Figure 1 Schematic diagram of the structure at HH in the figure.

[0026] Fig. 9 for Figure 1Schematic diagram of the structure at II in the figure. DETAILED DESCRIPTION

[0027] A tire having a tire tread adopting a tire pattern structure for improving thermal wear.

[0028] like Figures 1 to 9 As shown, a tire pattern structure for improving thermal wear includes a central groove 1 located in the center of the tread and extending in a broken line along the circumference of the tire, and a first pattern block group and a second pattern block group extending along the circumference of the tire are respectively arranged on the left and right sides of the central groove 1. The first pattern block groups adjacent to each other in the longitudinal direction and the second pattern block groups adjacent to each other in the longitudinal direction are separated by transverse grooves 2. The inner end of the transverse groove 2 is connected to the central groove 1, and the outer end is connected to the outer side of the tire. Both the central groove 1 and the transverse groove 2 include multiple continuous groove segments. The depth of the central groove 1 is 11 mm, and the depth of the transverse groove 2 is 21 mm. A plurality of heat dissipation ports 6 extending to the inside of the tread are arranged at the groove bottom of the central groove 1. The heat dissipation ports 6 are cylindrical, and the diameter of the heat dissipation ports 6 is 4.5-5.5 mm and the depth is 5 mm. The heat dissipation ports 6 enable the heat accumulated inside the tread to be dissipated in time, avoiding other defects caused by excessive heat generation, and greatly improving the heat generation performance.

[0029] When the tire pattern is unfolded into a plane, the first pattern block group and the second pattern block group have the same structure and are arranged in reverse staggered manner. The first pattern block group includes a hexagonal pattern block 3 located on the inner side of the tread and a pentagonal pattern block 4 located on the outer side of the tread. The first pattern block group and the second pattern block group are centrally symmetrical about the midpoint of the line connecting the corresponding vertices of the hexagonal pattern block 3 in the first pattern block group and the hexagonal pattern block in the second pattern block group. The hexagonal pattern block 3 and the pentagonal pattern block 4 are separated by a longitudinal groove 5. The upper and lower ends of the longitudinal groove 5 are connected to the transverse pattern groove 2. The cross-section of the longitudinal groove 5 is U-shaped and the depth is 10~12mm. The hexagonal pattern block 3 is bilaterally symmetrical, and the upper side and lower side of the hexagonal pattern block 3 are arranged horizontally. The three sides located on the upper side of the hexagonal pattern block 3 are equal in length, and the three sides located on the lower side of the hexagonal pattern block 3 are equal in length, but the sum of the lengths of the three sides on the upper side of the hexagonal pattern block 3 is different from the sum of the lengths of the three sides on the lower side of the hexagonal pattern block 3. The three sides on the upper side of the hexagonal pattern block 3 are all 33 mm long, and the three sides on the lower side of the hexagonal pattern block 3 are all 45 mm long. The design of the hexagonal pattern block 3 is resistant to extrusion, which can reduce the deformation of the tread pattern block, reduce stress and strain, and help extend the wear life of the tire.

[0030] The upper right side and lower right side of the hexagonal pattern block 3 are surrounded by two groove sections of the central pattern groove 1. The upper left side and upper left side of the hexagonal pattern block 3 are surrounded by two groove sections of the transverse pattern groove 2 located above the hexagonal pattern block 3, and the lower left side of the hexagonal pattern block 3 is surrounded by the longitudinal groove 5. The lower part of the hexagonal pattern block 3 is surrounded by a groove section of the transverse pattern groove 2 located below the hexagonal pattern block 3.

[0031] The top of the pentagonal pattern block 4 is surrounded by a groove section of the transverse pattern groove 2 located above the pentagonal pattern block 4. The top right side of the pentagonal pattern block 4 is surrounded by the longitudinal groove 5. The bottom right side and bottom of the polygonal pattern block 4 are surrounded by two groove sections of the transverse pattern groove 2 located below the polygonal pattern block 4.

[0032] The hexagonal pattern blocks 3 in the first pattern block group and the second pattern block are both provided with transverse small steel plate grooves 7, which are 24 mm long, 3 mm wide and 3 mm deep. The small steel plate grooves 7 are conducive to piercing the water film and increasing wetland traction.

[0033] Several stone-removing rubber nails 8 are arranged in the transverse groove 2 along the groove direction. The length of the stone-removing rubber nails 8 is 10 mm, the width is 4 mm, the height is 4-5 mm, and the spacing is 3-4 mm. The stone-removing rubber nails 8 are conducive to removing stones and protecting the tire groove bottom. The width of the transverse groove 2 increases from the inside to the outside, which further facilitates the removal of mud and stones.

[0034] The outer side surfaces of the pentagonal pattern blocks 4 in the first pattern block group and the second pattern block are provided with U-shaped grooves 9 for generating heat, which is beneficial to reduce high-speed heat generation and improve thermal wear.

Claims

1. A tire tread structure for improving thermal wear, characterized in that: The tire comprises a central groove (1) located in the center of the tread and extending in a broken line along the circumference of the tire; a first pattern block group and a second pattern block group extending along the circumference of the tire are respectively arranged on the left and right sides of the central groove (1); the first pattern block groups adjacent to each other in the longitudinal direction and the second pattern block groups adjacent to each other in the longitudinal direction are separated by transverse grooves (2); the inner end of the transverse groove (2) is connected to the central groove (1), and the outer end is connected to the outer side of the tire; the central groove (1) and the transverse groove (2) both comprise a plurality of continuous groove sections; a plurality of stone-removing rubber nails (8) are arranged in the transverse groove (2) along the groove direction; and a plurality of heat dissipation openings (6) extending toward the inside of the tread are arranged at the groove bottom of the central groove (1); When the tire pattern is unfolded into a plane, the first pattern block group and the second pattern block group have the same structure and are arranged in an inversely staggered manner; the first pattern block group comprises a hexagonal pattern block (3) located on the inner side of the tread and a pentagonal pattern block (4) located on the outer side of the tread; the first pattern block group and the second pattern block group are centrally symmetrical about the midpoint of the line connecting the corresponding vertices of the hexagonal pattern block (3) in the first pattern block group and the hexagonal pattern block in the second pattern block group; The hexagonal pattern blocks (3) and the pentagonal pattern blocks (4) are separated by a longitudinal groove (5); the upper and lower ends of the longitudinal groove (5) are connected to the transverse pattern groove (2); The hexagonal pattern block (3) is bilaterally symmetrical, and the upper side and the lower side of the hexagonal pattern block (3) are arranged horizontally; the three sides located on the upper side of the hexagonal pattern block (3) are equal in length, and the three sides located on the lower side of the hexagonal pattern block (3) are equal in length, but the sum of the lengths of the three sides on the upper side of the hexagonal pattern block (3) is different from the sum of the lengths of the three sides on the lower side of the hexagonal pattern block (3); The upper right side and the lower right side of the hexagonal pattern block (3) are surrounded by two groove sections of the central pattern groove (1); the upper left side and the upper left side of the hexagonal pattern block (3) are surrounded by two groove sections of the transverse pattern groove (2) located above the hexagonal pattern block (3); the lower left side of the hexagonal pattern block (3) is surrounded by the longitudinal groove (5); the lower part of the hexagonal pattern block (3) is surrounded by a groove section of the transverse pattern groove (2) located below the hexagonal pattern block (3); The upper part of the pentagonal pattern block (4) is surrounded by a groove section of the transverse pattern groove (2) located above the pentagonal pattern block (4); the upper right side of the pentagonal pattern block (4) is surrounded by the longitudinal groove (5); the lower right side and the lower part of the pentagonal pattern block (4) are surrounded by two groove sections of the transverse pattern groove (2) located below the pentagonal pattern block (4).

2. A tire tread structure for improving thermal wear according to claim 1, characterized in that: The lengths of the three sides on the upper side of the hexagonal pattern block (3) are all 33 mm, and the lengths of the three sides on the lower side of the hexagonal pattern block (3) are all 45 mm.

3. The tire tread structure for improving thermal wear according to claim 1, characterized in that: The depth of the central groove (1) is 11 mm, and the depth of the transverse groove (2) is 21 mm.

4. The tire tread structure for improving thermal wear according to claim 1, characterized in that: The heat dissipation opening (6) is cylindrical, has a diameter of 4.5-5.5 mm, and a depth of 5 mm.

5. The tire tread structure for improving thermal wear according to claim 1, characterized in that: The hexagonal pattern blocks (3) in the first pattern block group and the second pattern block group are both provided with transverse small steel plate grooves (7), and the small steel plate grooves (7) have a length of 24 mm, a width of 3 mm, and a depth of 3 mm.

6. The tire tread structure for improving thermal wear according to claim 1, characterized in that: The cross section of the longitudinal groove (5) is U-shaped and has a depth of 10 to 12 mm.

7. The tire tread structure for improving thermal wear according to claim 1, characterized in that: The length of the stone removal glue nail (8) is 10 mm, the width is 4 mm, the height is 4-5 mm, and the spacing is 3-4 mm.

8. The tire tread structure for improving thermal wear according to claim 1, characterized in that: The width of the transverse groove (2) increases from the inside to the outside.

9. The tire tread structure for improving thermal wear according to claim 1, characterized in that: The outer side surfaces of the pentagonal pattern blocks (4) in the first pattern block group and the second pattern block group are provided with U-shaped grooves (9) for generating heat.

10. A tire, characterized in that: The tread pattern of the tire adopts the tire pattern structure with improved thermal wear as claimed in claim 1.

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