CN117984698A - Center symmetry formula tire decorative pattern structure of making an uproar falls - Google Patents

Abstract

The invention relates to the technical field of tire pattern design, and discloses an anti-skid and noise-reducing tire pattern structure which comprises 5 pattern blocks and 4 pattern grooves which are alternately arranged, wherein the pattern blocks are transversely arranged along the tire tread, a plurality of independent shallow grooves or parallel dense shallow grooves are arranged on the pattern blocks, all the shallow grooves are communicated with the pattern grooves, and the width of each shallow groove is only 1-2mm, and the depth of each shallow groove is only 1mm. The design can prevent the tread from blocking air when contacting the ground, and reduce the number of closed pattern grooves when the pattern blocks are grounded, thereby reducing resonance and noise; meanwhile, the wave structure formed by parallel dense shallow grooves can increase drainage, and can effectively destroy a water film on a wet or waterway surface, so that the tire is in contact with the road surface to produce excellent grip force, and the driving safety of a vehicle is ensured.

Description

Center symmetry formula tire decorative pattern structure of making an uproar falls

Technical Field

The invention relates to the technical field of tire pattern design, in particular to a noise-reducing central symmetry type tire pattern structure.

Background

The tread pattern of the tire is also called tread pattern. The tyre tread is molded or carved on the outer tyre, and has the functions of improving the running performance of the tyre and improving the beautiful appearance. The main types are: road patterns suitable for running on paved roads, also called common patterns; the cross-country pattern suitable for running under the condition of no road surface is also called as a tread pattern of the road and the block area of the cross-country pattern occupies a larger proportion of the total area of the crown; the middle part of the tread running surface is provided with highway patterns, the two sides of the tread running surface are provided with cross-country patterns, which are called mixed patterns, also called universal patterns or universal patterns, and the ground area of the patterns accounts for about sixty-five percent of the total area of the running surface; the pattern with the requirement of running direction is called directional pattern, its pattern is in the form of herringbone or oblique strip, it is applicable to engineering machinery and farm tractor tyre, it can provide good traction and self-cleaning property, when the tyre with this pattern is mounted, must make the herringbone or oblique strip vertex be identical with running direction, and mark running direction on the sidewall with arrow, if the reverse use of earth can fill the groove, and lose traction performance; the snow mud pattern suitable for running on muddy and ice road is also called winter tread pattern, which is a block pattern with sharp edges, and has good anti-skid performance, and can ensure the safe running of the tyre on the muddy and ice road.

The tire pattern is required to be selected according to different requirements, but the tire pattern is the most complex in design and the most difficult to process. The device has many factors to be considered, the deflection of the traction force easily generates large noise, and the deflection of the drainage performance easily prevents the high-speed rotation of the tire, namely, when the device deflects to a certain specific capacity, other performances are greatly deficient.

The Chinese patent (publication No. CN219969314U; publication No. 2023.11.07) discloses an all-steel load tubeless radial tire tread pattern structure, wherein a tire body comprises a wheel disc and a tire tread, the tire tread is composed of nine equal-part segmented molds, main pattern grooves and main pattern blocks are uniformly distributed on the tire tread, the main pattern grooves comprise two central pattern grooves and two side pattern grooves, and the main pattern blocks comprise a central pattern block and two side pattern blocks to form a pattern structure; rectangular sub-pattern blocks are uniformly distributed on the central pattern block and the pattern blocks at two sides at longitudinal intervals, and sub-block inclined grooves are formed in the long edges in the longitudinal direction. However, the secondary pattern blocks are distributed more densely towards the center, and the shoulder pattern blocks are not provided with pattern grooves, so that the water drainage and noise reduction of the tire are not emphasized.

Disclosure of Invention

The invention provides a noise-reducing central symmetry type tire pattern structure aiming at the defects of the prior art.

In order to achieve the above purpose, the present invention adopts the following technical scheme:

A noise reduction center symmetrical tire tread structure comprising 5 blocks and 4 grooves alternately arranged, disposed laterally along a tire tread, the 5 blocks comprising, from left to right, first, second, third, fourth and fifth blocks, the 4 grooves comprising, from left to right, first, second, third and fourth grooves;

the first pattern blocks and the fifth pattern blocks are shoulder pattern blocks, a plurality of first contours which are arranged at intervals are arranged in the circumferential direction of the first pattern blocks, and the first contours extend outwards from the first pattern grooves and are inclined in a seven shape; a first shallow groove is circumferentially arranged on the outer ring of the first contour, and two ends of the first shallow groove are respectively communicated with the first pattern groove;

the patterns on the fifth pattern block and the patterns on the first pattern block are mutually in central symmetry;

The second pattern block and the fourth pattern block are middle pattern blocks, a plurality of second contours and third contours are arranged at intervals in the circumferential direction of the second pattern block, the second contours extend outwards from the second pattern grooves, the third contours extend outwards from the first pattern grooves, the second contours and the third contours are of the same shape and size and are parallelograms, the second contours are positioned above the third contours, second shallow grooves are arranged around the outer ring of the second contours, and third shallow grooves are arranged around the outer ring of the third contours;

The second shallow groove comprises a first end, a second end, a third end and a fourth end which are sequentially connected, the first end is a starting end and is communicated with the second pattern groove, the second end and the third end are positioned in the second pattern block, the fourth end is a terminating end and is communicated with the second pattern groove, a first auxiliary shallow groove is arranged on the shallow groove connecting the third end and the fourth end in an extending mode towards the first pattern groove, and the first auxiliary shallow groove is connected to the first pattern groove;

The third shallow groove comprises a first end, a second end, a third end and a fourth end which are sequentially connected, the first end is an initial end and is communicated with the first pattern groove, the second end and the third end are positioned in the second pattern block, the fourth end is a terminal end and is communicated with the first pattern groove, the shallow groove connecting the third end and the fourth end extends to the second pattern groove to be provided with a second auxiliary shallow groove, and the second auxiliary shallow groove is connected to the second pattern groove;

A third auxiliary shallow groove which is circumferentially arranged is arranged between the second shallow groove and the third shallow groove, and the third auxiliary shallow groove is communicated with the second shallow groove and the third shallow groove; a plurality of fourth shallow grooves which are parallel to each other and circumferentially arranged are arranged in the second contour and the third contour;

The patterns on the fourth pattern block and the patterns on the second pattern block are mutually symmetrical in center;

The third pattern block is a central pattern block, a fourth profile and a fifth profile which are arranged at intervals are arranged in the circumferential direction of the third pattern block, the fourth profile is arranged above the fifth profile at intervals, and the fourth profile and the fifth profile extend from the second pattern groove to the third pattern groove and are inclined Z-shaped; a fifth shallow groove and a sixth shallow groove are respectively arranged around the outer ring of the fourth contour and the outer ring of the fifth contour, and two ends of the fifth shallow groove and two ends of the sixth shallow groove are respectively communicated with the second pattern groove and the third pattern groove;

A fourth subsidiary shallow trench is extended above the fifth shallow trench, and the fourth subsidiary shallow trench is communicated with the fifth shallow trench and the third pattern trench; a fifth auxiliary shallow groove is arranged below the sixth shallow groove in an extending mode, and the fifth auxiliary shallow groove is communicated with the sixth shallow groove and the second pattern groove.

Preferably, the cross section of the first shallow groove, the second shallow groove, the third shallow groove, the fifth shallow groove, the sixth shallow groove, the first auxiliary shallow groove, the second auxiliary shallow groove, the third auxiliary shallow groove, the fourth auxiliary shallow groove or the fifth auxiliary shallow groove is a rounded rectangle, the groove depth is 1mm, the groove width is 2mm, and the rounded radius is 0.5mm;

the depth of the fourth shallow trench is 1mm, and the width of the fourth shallow trench is 2mm.

Preferably, the first groove and the fourth groove are bilaterally symmetrical, and the bottoms of the grooves are rounded; the first groove is 18mm deep and 13mm wide, the left side groove wall is inclined 18 deg. 50 'from the center, and the right side groove wall is inclined 13 deg. 10' from the center.

Preferably, the second groove and the third groove are bilaterally symmetrical, and the bottoms of the grooves are rounded; the second groove is 18mm deep, 12mm wide, 3mm deep with rounded corners, the left side wall is inclined 19 degrees from the center, and the right side wall is inclined 13 degrees from the center; preferably, the radius of the circle where the circular arc included in the rounded corner is located is 5mm.

Furthermore, the invention also discloses an all-steel tire, and the tread pattern of the all-steel tire adopts the tire pattern structure.

The beneficial effects of the invention are as follows: the pattern block is provided with a plurality of independent shallow trenches or parallel dense shallow trenches, all the shallow trenches are communicated with the pattern grooves, and the width of each shallow trench is only 1-2mm and the depth of each shallow trench is 1mm. The design can prevent the tread from blocking air when contacting the ground, and reduce the number of closed pattern grooves when the pattern blocks are grounded, thereby reducing resonance and noise; meanwhile, the wave structure formed by parallel dense shallow grooves can increase drainage, and can effectively destroy a water film on a wet or waterway surface, so that the tire is in contact with the road surface to produce excellent grip force, and the driving safety of a vehicle is ensured.

Drawings

FIG. 1 is a schematic diagram of a tire tread configuration.

FIG. 2 is a schematic G-G cross-sectional view of a first shallow trench, a second shallow trench, a third shallow trench, a fifth shallow trench, a sixth shallow trench, a first sub-shallow trench, a second sub-shallow trench, a third sub-shallow trench, a fourth sub-shallow trench, and a fifth sub-shallow trench.

Fig. 3 is a schematic partial A-A cross-sectional view of the second profile and the third profile.

FIG. 4 is a schematic cross-sectional view of a groove, A: the first groove is shown in a D-D section, the second groove is shown in a C-C section, the third groove is shown in a E-E section, and the fourth groove is shown in a F-F section.

Fig. 5 is a schematic diagram of a tire pattern structure according to a reference example.

Detailed Description

The technical solutions in the embodiments are clearly and completely described below in connection with the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

In the description of the present application, it should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "inner," "outer," and the like indicate or are based on the orientation or positional relationship shown in the drawings, merely to facilitate description of the present application and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present application.

The following examples are described by way of example in connection with fig. 1-4.

As shown in fig. 1, a noise reduction center-symmetrical tire pattern structure includes 5 blocks and 4 grooves alternately arranged, disposed in a tire tread widthwise direction, the 5 blocks including a first block 11, a second block 12, a third block 13, a fourth block 14, and a fifth block 15 from left to right, the 4 grooves including a first groove 21, a second groove 22, a third groove 23, and a fourth groove 24 from left to right.

The first pattern block 11 and the fifth pattern block 15 are shoulder pattern blocks, the circumference of the first pattern block 11 is provided with a plurality of first contours which are arranged at intervals, and the first contours extend outwards from the first pattern grooves 21 and are in an inclined seven shape; the first shallow groove 31 is circumferentially arranged on the outer ring of the first contour, and two ends of the first shallow groove 31 are respectively communicated with the first pattern groove 21. The first shallow groove 31 is shown in fig. 2 in cross section, and has a rounded rectangle shape with a groove depth of 1mm and a groove width of 2mm, and a rounded radius of 0.5mm. The shoulder pattern design can increase the shoulder grip while ensuring low noise.

The pattern on the fifth block 15 and the pattern on the first block 11 are mutually center-symmetrical.

The second pattern block 12 and the fourth pattern block 14 are middle pattern blocks, a plurality of second contours and third contours are circumferentially arranged on the second pattern block 12 at intervals, the second contours extend outwards from the second pattern grooves 22, the third contours extend outwards from the first pattern grooves 21, the second contours and the third contours are of the same shape and size and are parallelograms, the second contours are positioned above the third contours, a second shallow groove 32 is circumferentially arranged on the outer ring of the second contours, and a third shallow groove 33 is circumferentially arranged on the outer ring of the third contours; the cross section of the second shallow groove 32 and the third shallow groove 33 is a rounded rectangle, the groove depth is 1mm, the groove width is 2mm, and the rounded radius is 0.5mm as shown in figure 2.

The second shallow groove 32 comprises a first end, a second end, a third end and a fourth end which are sequentially connected, wherein the first end is a starting end and is communicated with the second pattern groove 22, the second end and the third end are positioned in the second pattern block 12, the fourth end is a terminating end and is communicated with the second pattern groove 22, the shallow groove connecting the third end and the fourth end extends towards the first pattern groove 21 and is provided with a first auxiliary shallow groove 41, and the first auxiliary shallow groove 41 is connected to the first pattern groove 21; the first sub-shallow groove 41 has a cross section of a rounded rectangle, a groove depth of 1mm, a groove width of 2mm and a rounded radius of 0.5mm as shown in FIG. 2.

The third shallow groove 33 comprises a first end, a second end, a third end and a fourth end which are sequentially connected, wherein the first end is a starting end and is communicated with the first pattern groove 21, the second end and the third end are positioned in the second pattern block 12, the fourth end is a stopping end and is communicated with the first pattern groove 21, a second auxiliary shallow groove 42 is arranged to extend towards the second pattern groove 22 by the shallow groove connecting the third end and the fourth end, and the second auxiliary shallow groove 42 is connected to the second pattern groove 22; the second sub-shallow groove 42 is shown in FIG. 2 in cross section and has a rounded rectangle shape with a groove depth of 1mm and a groove width of 2mm and a rounded radius of 0.5mm.

A third auxiliary shallow groove 43 which is arranged circumferentially is arranged between the second shallow groove 32 and the third shallow groove 33, and the third auxiliary shallow groove 43 is communicated with the second shallow groove 32 and the third shallow groove 33; and a plurality of circumferentially arranged fourth shallow trenches 34 parallel to each other are arranged in the second contour and the third contour; the third shallow groove 43 has a cross section of a rounded rectangle, a groove depth of 1mm, a groove width of 2mm and a rounded radius of 0.5mm as shown in FIG. 2.

As shown in fig. 3, the fourth shallow trenches 34 are 1mm deep and 1mm wide, every two fourth shallow trenches 34 are 1mm apart, the whole of the partial cross section in the second contour is wavy, and each wave is a semicircle with a radius of 0.5 mm. The design of the patterns in the second contour and the third contour can prevent the blocking of air by the pattern grooves when the tread is contacted with the ground, reduce the number of closed pattern grooves when the pattern blocks are grounded, reduce resonance and reduce noise; meanwhile, the wave structure can effectively destroy a water film on a wet or waterway surface, so that the tire is in contact with a road surface to produce excellent ground grabbing force, and the driving safety of a vehicle is ensured.

The pattern on the fourth block 14 and the pattern on the second block 11 are centered on each other.

The third pattern block 13 is a central pattern block, a fourth profile and a fifth profile which are arranged at intervals are arranged in the circumferential direction of the third pattern block 13, the fourth profile is arranged above the fifth profile at intervals, and the fourth profile and the fifth profile extend from the second pattern groove 22 to the third pattern groove 23 and are inclined in a Z shape; a fifth shallow groove 35 and a sixth shallow groove 36 are respectively arranged around the outer ring of the fourth contour and the outer ring of the fifth contour, and two ends of the fifth shallow groove 35 and the sixth shallow groove 36 are respectively communicated with the second pattern groove 22 and the third pattern groove 23; the fifth and sixth shallow grooves 35 and 36 are formed in a rectangular shape with rounded corners having a groove depth of 1mm and a groove width of 2mm and a rounded corner radius of 0.5mm, as shown in FIG. 2.

A fourth subsidiary shallow trench 44 is extended above the fifth shallow trench 35, and the fourth subsidiary shallow trench 44 is communicated with the fifth shallow trench 35 and the third pattern trench 23; a fifth sub-shallow trench 45 extends below the sixth shallow trench 36, and the fifth sub-shallow trench 45 communicates the sixth shallow trench 36 with the second groove 22. The fourth and fifth sub-shallow grooves 44 and 45 are formed in a rounded rectangle shape in cross section, 1mm deep and 2mm wide, and 0.5mm rounded radius, as shown in fig. 2.

As shown in fig. 4, the first groove 21 and the fourth groove 24 are symmetrical left and right, and the bottoms of the grooves are rounded; as shown in fig. 4 (a), the first groove 21 is 18mm deep and 13mm wide, the left groove wall is inclined 18 ° 50 'from the center, and the right groove wall is inclined 13 ° 10' from the center; as shown in fig. 4 (D), the fourth groove 24 has a groove depth of 18mm and a groove width of 13mm, the left groove wall is inclined at 13 ° 10 'from the center, and the right groove wall is inclined at 18 ° 50' from the center.

As shown in fig. 4, the second groove 22 and the third groove 23 are symmetrical left and right, and the bottoms of the grooves are rounded; as shown in fig. 4 (B), the second groove 22 is 18mm deep, 12mm wide, 3mm rounded deep, the left side groove wall is inclined 19 ° from the center, and the right side groove wall is inclined 13 ° from the center; as shown in fig. 4 (C), the third groove 23 is 18mm deep, 12mm wide, 3mm deep with rounded corners, the left side groove wall is inclined 13 ° from the center, and the right side groove wall is inclined 19 ° from the center. Wherein, the radius of the circle where the arc tangent to the groove wall in the rounding is positioned is 5mm.

< Noise Performance >

On the basis of analysis of the noise sounding mechanism of the tire pattern, a physical test model of the tire pattern noise suitable for computer simulation analysis is established. The tires were subjected to noise simulation analysis at a speed of 80 km/h.

Test object: the tires of reference example and example 1 were identical in specification, and the tire pattern used in reference example is shown in fig. 5.

The test results are shown in Table 1.

TABLE 1

	Reference example	Example 1
			Tire pattern saturation (%)	72.57	72.60
Noise (dB)	71	70

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art. The generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (5)

1. A noise reduction center symmetrical tire tread structure comprising 5 blocks and 4 grooves alternately arranged, disposed laterally along a tire tread, the 5 blocks including, from left to right, a first block (11), a second block (12), a third block (13), a fourth block (14) and a fifth block (15), the 4 grooves including, from left to right, a first groove (21), a second groove (22), a third groove (23) and a fourth groove (24); it is characterized in that the method comprises the steps of,

The first pattern blocks (11) and the fifth pattern blocks (15) are shoulder pattern blocks, a plurality of first contours which are arranged at intervals are arranged in the circumferential direction of the first pattern blocks (11), and the first contours extend outwards from the first pattern grooves (21) and are in an inclined seven shape; a first shallow groove (31) is circumferentially arranged on the outer ring of the first contour, and two ends of the first shallow groove (31) are respectively communicated with the first pattern groove (21);

the patterns on the fifth pattern block (15) and the patterns on the first pattern block (11) are mutually symmetrical in center;

The second pattern block (12) and the fourth pattern block (14) are middle pattern blocks, a plurality of second contours and third contours are arranged at intervals in the circumferential direction of the second pattern block (12), the second contours extend outwards from the second pattern grooves (22), the third contours extend outwards from the first pattern grooves (21), the second contours and the third contours are of the same shape and size and are parallelograms, the second contours are positioned above the third contours, a second shallow groove (32) is arranged around the outer ring of the second contours, and a third shallow groove (33) is arranged around the outer ring of the third contours;

The second shallow groove (32) comprises a first end, a second end, a third end and a fourth end which are sequentially connected, the first end is a starting end and is communicated with the second pattern groove (22), the second end and the third end are positioned in the second pattern block (12), the fourth end is a terminating end and is communicated with the second pattern groove (22), the shallow groove connecting the third end and the fourth end is provided with a first auxiliary shallow groove (41) extending towards the first pattern groove (21), and the first auxiliary shallow groove (41) is connected to the first pattern groove (21);

The third shallow groove (33) comprises a first end, a second end, a third end and a fourth end which are sequentially connected, the first end is a starting end and is communicated with the first pattern groove (21), the second end and the third end are positioned in the second pattern block (12), the fourth end is a stopping end and is communicated with the first pattern groove (21), a second auxiliary shallow groove (42) is arranged on the shallow groove connecting the third end and the fourth end and extends to the second pattern groove (22), and the second auxiliary shallow groove (42) is connected to the second pattern groove (22);

A third auxiliary shallow groove (43) which is circumferentially arranged is arranged between the second shallow groove (32) and the third shallow groove (33), and the third auxiliary shallow groove (43) is communicated with the second shallow groove (32) and the third shallow groove (33); and a plurality of circumferentially arranged fourth shallow grooves (34) parallel to each other are arranged in the second contour and the third contour;

the patterns on the fourth pattern block (14) and the patterns on the second pattern block (11) are mutually symmetrical in center;

The third pattern block (13) is a central pattern block, a fourth profile and a fifth profile which are arranged at intervals are arranged in the circumferential direction of the third pattern block (13), the fourth profile is arranged above the fifth profile at intervals, and both the fourth profile and the fifth profile extend from the second pattern groove (22) to the third pattern groove (23) and are inclined Z-shaped; a fifth shallow groove (35) and a sixth shallow groove (36) are respectively arranged around the outer ring of the fourth contour and the outer ring of the fifth contour, and two ends of the fifth shallow groove (35) and the sixth shallow groove (36) are respectively communicated with the second pattern groove (22) and the third pattern groove (23);

A fourth sub-shallow groove (44) is arranged above the fifth shallow groove (35) in an extending manner, and the fourth sub-shallow groove (44) is communicated with the fifth shallow groove (35) and the third pattern groove (23); a fifth subsidiary shallow groove (45) is arranged below the sixth shallow groove (36) in an extending mode, and the fifth subsidiary shallow groove (45) is communicated with the sixth shallow groove (36) and the second pattern groove (22).

2. The tire tread configuration according to claim 1, wherein the cross section of the first (31), second (32), third (33), fifth (35), sixth (36), first (41), second (42), third (43), fourth (44) or fifth (45) sub-shallow grooves is rounded rectangle with a groove depth of 1mm, a groove width of 2mm and a corner radius of 0.5mm;

the fourth shallow groove (34) is 1mm deep and 2mm wide.

3. Tyre tread configuration according to claim 1, characterized in that said first (21) and fourth (24) grooves are laterally symmetrical, the bottoms of which are rounded; the first groove (21) has a groove depth of 18mm and a groove width of 13mm, the left groove wall is inclined at 18 DEG 50 'from the center, and the right groove wall is inclined at 13 DEG 10' from the center.

4. Tyre tread configuration according to claim 1, characterized in that said second (22) and third (23) grooves are laterally symmetrical, the bottoms of which are rounded; the second groove (22) has a groove depth of 18mm, a groove width of 12mm, a rounded corner depth of 3mm, a left groove wall inclined 19 DEG from the center, and a right groove wall inclined 13 DEG from the center; preferably, the radius of the circle where the circular arc included in the rounded corner is located is 5mm.

5. An all-steel tire characterized in that the tread pattern of the all-steel tire adopts the tire pattern structure as claimed in any one of claims 1 to 4.