CN220826444U - Tread pattern structure of metric all-steel load tubeless radial tire - Google Patents

Abstract

The utility model relates to a metric all-steel load tubeless radial tire tread pattern structure, which comprises a central zigzag pattern groove arranged in the middle of a tire tread, and a main pattern area, a stone discharging straight groove area and a tire shoulder pattern area which are sequentially distributed on two sides of the central zigzag pattern groove from inside to outside; wherein the central zigzag groove has a zigzag groove-like structure; the stone removing straight ditch area is provided with a straight ditch, a plurality of stone removing blocks are arranged in the straight ditch at intervals along the length direction, and connecting ridges are arranged among the stone removing blocks; the main pattern area is provided with a main inclined groove, one end of the main inclined groove is connected with a folding corner of the folding line groove-shaped structure, and the other end of the main inclined groove is connected with the straight groove; the tire shoulder pattern area is provided with a tire shoulder inclined groove; the shoulder inclined grooves and the adjacent main inclined grooves are in a continuous groove-like structure broken by the straight grooves. Compared with the prior art, the tire tread pattern is designed integrally as a mixed pattern, and excellent eccentric wear resistance and durability are provided.

Description

Tread pattern structure of metric all-steel load tubeless radial tire

Technical Field

The utility model belongs to the technical field of tires, and relates to a tread pattern structure of a metric all-steel load tubeless radial tire.

Background

Tires are annular elastomeric rubber articles assembled on various vehicles or machines for ground contact rolling. The automobile body is supported by the automobile body through the metal rim, external impact is buffered, contact with a road surface is achieved, and running performance of the automobile is guaranteed. Tires are often used under complex and severe conditions, and they are subjected to various deformations, loads, forces and high and low temperatures during running, and therefore must have high load-bearing, traction and cushioning properties. At the same time, it is also required to have high wear resistance and flex resistance, as well as low rolling resistance and heat buildup. Half of the world's consumed rubber is used in tire production, and the ability of a tire to consume rubber is seen.

The design of the tire pattern is various, and is considered according to the application of different purposes and different road conditions, and the tire pattern is also considered from the aspects when being selected. The tire patterns play a very important role in the whole driving, and the patterns with reasonable design not only can effectively save oil, but also can reduce noise generated in the driving process of the automobile, and can enhance the driving force, braking force and traction performance of the automobile on various severe and wet road surfaces, thereby improving the driving safety of the automobile.

There are generally several categories of tire tread patterns:

(1) The straight groove pattern is also called a common pattern, and the pattern is designed by taking a longitudinal groove as a main pattern.

The characteristics are as follows: excellent steering stability, small rotation resistance, low noise, excellent drainage performance and difficult transverse sliding.

The method is applicable to: vehicle type is used in walking on the flat road surface: cars, trucks, and even airplanes.

Disadvantages: the driving and traction forces are poor.

(2) Transverse groove pattern: the design of the pattern mainly comprises transverse grooves.

The characteristics are as follows: the driving force, braking force and traction force of the transverse groove pattern are particularly excellent, and the wear resistance thereof is excellent.

The method is applicable to: vehicle type used for severe road surfaces such as crushed stone roads and the like: most of them are used in industrial, medium and short-distance vehicles such as bulldozers, excavators, loaders, and heavy-duty vehicles.

Disadvantages: the noise is big.

(3) Longitudinal and transverse groove pattern: the longitudinal and transverse groove patterns are also called comprehensive patterns, and the comprehensive straight groove pattern and the transverse groove pattern are designed.

The characteristics are as follows: has the advantages of the patterns of the longitudinal grooves and the transverse grooves.

The method is applicable to: and (5) a severe road surface.

Disadvantages: abnormal abrasion is easily generated.

(4) Block pattern: the patterns are regularly arranged in blocks.

The characteristics are as follows: the driving force and the braking force are good, and the force for driving the vehicle to advance is provided.

The method is applicable to: snow, mud, etc.

Disadvantages: poor wear resistance and short mileage life.

The main tubeless tire driving route in the market is the road surface above the pavement, the main quality symptoms of the tire are shoulder air, crown air and wear resistance, the tire has high requirement on patterns, good wear resistance and novel appearance.

Disclosure of utility model

The utility model aims to provide a tread pattern structure of a metric all-steel load tubeless radial tire, which adopts straight groove and folded groove mixed patterns and a variable design; the rigidity of the tire shoulder part is rationalized, and the tire shoulder part has excellent eccentric wear resistance; deep pattern design, long wear life; the carcass has excellent durability.

The aim of the utility model can be achieved by the following technical scheme:

A tire tread pattern structure comprises a central zigzag pattern groove arranged in the middle of a tire tread, and a main pattern area, a stone-discharging straight groove area and a tire shoulder pattern area which are sequentially distributed on two sides of the central zigzag pattern groove from inside to outside;

The central zigzag groove has a zigzag groove-like structure; the stone removing straight ditch area is provided with a straight ditch, a plurality of stone removing blocks are arranged in the straight ditch at intervals along the length direction, and connecting ridges are arranged among the stone removing blocks;

The main pattern area is provided with a main inclined groove, one end of the main inclined groove is connected to the folded corner of the broken line groove-shaped structure, and the other end of the main inclined groove is connected with the straight groove;

The tire shoulder pattern area is provided with a tire shoulder inclined groove;

The shoulder inclined grooves and the adjacent main inclined grooves are in continuous groove-shaped structures broken by straight grooves.

Further, the width of the central zigzag groove is 15-19mm, the depth is 16-20mm, the longitudinal section is in an inverted trapezoid shape, and the internal corner at the transition of the groove bottom is an arc surface with the radius of 2-3 mm.

Further, the main inclined groove and the shoulder inclined groove are two desk-type structures and comprise a wide groove and a narrow groove which are arranged on the upper and lower concentric surfaces,

The width of the wide groove is 3-5mm, and the depth is 3-5mm; the width of the narrow groove is 0.6-1.0mm, and the depth is 4-6mm;

The wide groove and the narrow groove are transited through an arc surface with the radius of 0.4-0.6 mm.

Further, the width of the straight groove area for removing the stones is 16-20mm, the depth is 16-20mm, and the internal angle at the transition part of the groove bottom is an arc surface with the radius of 1-3 mm; the length of the stone removing block is 8-12mm, the width is 3-5mm, and the height is 3-5mm.

Further, a plurality of transverse ditches are distributed in the stone-discharging straight ditch area at intervals, the stone-discharging straight ditch area is divided into a plurality of stone-discharging straight ditch subareas by the plurality of transverse ditches, and the stone-discharging blocks and the connecting ridges are arranged in the corresponding stone-discharging and Dan Zhigou subareas.

Further, the depth of the transverse groove is 21-25mm, and the internal corner at the transition of the groove bottom is an arc surface with the radius of 1-3 mm.

Further, the width of the shoulder pattern area is 53-56mm.

Further, the extension length of the tire shoulder inclined groove along the width direction of the tire tread is 26-30mm, the internal corner at the transition of the groove bottom is an arc surface with the radius of 0.4-0.6mm, the end part of the tire shoulder inclined groove is in a semicircular arc surface shape with the radius of 1-3mm, and the inclination angle of the tire shoulder inclined groove and the tire shoulder inclined groove relative to the axial direction of the tire is 45-55 degrees.

Further, a plurality of under-shoulder type grooves are distributed on two sides of the tire tread along the circumferential direction, and the under-shoulder type grooves extend from the tire shoulder to the under-shoulder; the shoulder-below pattern groove is of a two-table structure and comprises a wide groove and a narrow groove which are arranged on the upper and lower concentric surfaces, and the wide groove and the narrow groove are in transition through an arc surface;

The width of the wide groove is 16-20mm, and the depth is 1-5mm; the width of the narrow groove is 10-14mm, and the depth is 2-6mm;

The external corner at the transition part between the top of the wide groove and the tread of the tire is an arc surface with the radius of 2-4 mm;

the internal corner of the transition part of the wide groove bottom is an arc surface with the radius of 1-3 mm;

The external corner at the transition part between the wide groove and the narrow groove is an arc surface with the radius of 1-3 mm;

the internal corner of the transition part of the narrow groove bottom is an arc surface with the radius of 1-3 mm.

Further, a plurality of exhaust holes are formed through the tire tread.

Compared with the prior art, the utility model has the following beneficial effects:

The tire tread pattern is designed integrally as a mixed pattern, and provides excellent eccentric wear resistance and durability. The tread pattern structure is formed by nine equal-part segmented molds, the tread center is a column of zigzag main pattern grooves, namely a central zigzag pattern groove, and stone discharging straight groove areas are distributed on two sides of the main pattern grooves, and the tread pattern structure comprises straight grooves and a plurality of stone discharging blocks distributed in the straight grooves and is used for improving the stone discharging and water discharging performance of the tire. The central zigzag pattern groove is connected with the stone-discharging straight groove region through a plurality of main inclined grooves, and the main pattern region between the central zigzag pattern groove and the stone-discharging straight groove region is divided into a plurality of pentagonal-like pattern blocks. The tire shoulder parts near the tire shoulder are two tire shoulder pattern areas, and a plurality of tire shoulder inclined grooves are uniformly distributed on one side of the pattern blocks distributed on the tire shoulder parts near the center of the tire, so that the rigidity and the eccentric wear resistance of the tire shoulder are greatly improved.

Drawings

FIG. 1 is a schematic view of a tread pattern structure of a tire according to an embodiment;

FIG. 2 is a schematic view of a structure of one pitch of a tread pattern of a tire in an embodiment;

the figure indicates:

1-tire tread, 21-main pattern area, 22-shoulder pattern area, 31-central zigzag pattern groove, 32-stone-discharging straight groove area, 33-stone-discharging block, 4-main inclined groove, 5-shoulder inclined groove, 6-under-shoulder pattern groove, 7-exhaust hole, 8-transverse groove and 9-stone-discharging straight groove subarea.

Detailed Description

The utility model will now be described in detail with reference to the drawings and specific examples. The following examples are given with the above technical solutions of the present utility model as a premise, and detailed embodiments and specific operation procedures are given, but the scope of protection of the present utility model is not limited to the following examples.

It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.

Some embodiments of the present utility model are described in detail below with reference to the accompanying drawings. The embodiments described below and features of the embodiments may be combined with each other without conflict.

Examples:

the tire tread pattern structure shown in fig. 1 and 2 includes a central zigzag groove 31 provided in the middle of the tire tread 1, and a main pattern region 21, a straight stone-discharging groove region 32, and a shoulder pattern region 22 which are sequentially distributed from inside to outside on both sides of the central zigzag groove 31.

Wherein the central zigzag groove 31 has a zigzag groove-like structure; the straight stone discharging ditch area 32 is provided with a straight ditch, a plurality of stone discharging blocks 33 are arranged in the straight ditch at intervals along the length direction, and connecting ridges are arranged among the plurality of stone discharging blocks 33; the main pattern area 21 is provided with a main inclined groove 4, one end of the main inclined groove 4 is connected with a folded corner of the fold line groove-shaped structure, and the other end is connected with a straight groove; the tire shoulder pattern area 22 is provided with a tire shoulder inclined groove 5; the shoulder inclined grooves 5 and the adjacent main inclined grooves 4 are in a continuous groove-like structure interrupted by straight grooves.

The tire tread pattern is designed integrally as a mixed pattern, and provides excellent eccentric wear resistance and durability. The tread pattern structure is formed by nine equal-part segmented molds, the tread center is a column of zigzag main pattern grooves, namely a central zigzag pattern groove 31, two sides of the main pattern groove are distributed with straight stone discharging groove areas 32, and the straight stone discharging grooves and a plurality of stone discharging blocks 33 distributed in the straight grooves are used for improving the stone discharging and water discharging performance of the tire. The central zigzag groove 31 and the straight stone-discharging groove region 32 are connected by a plurality of main inclined grooves 4, and the main pattern region 21 between the central zigzag groove 31 and the straight stone-discharging groove region 32 is divided into a plurality of pentagonal-like pattern blocks.

Two tire shoulder pattern areas 22 are arranged on the two sides of the tire near the tire shoulder, and a plurality of tire shoulder inclined grooves 5 are uniformly distributed on one side of the pattern blocks distributed on the tire near the center of the tire, so that the rigidity and the eccentric wear resistance of the tire shoulder are greatly improved.

The whole pattern structure is a mixed pattern structure, the deep pattern is designed, the abrasion life is long, and the durability of the tire body is excellent.

In some specific embodiments, the tread pattern pitch is 52 knots and the running surface width is 260mm. The nine equal parts segmented mold is uniformly provided with a row of zigzag main grooves, namely a central zigzag groove 31, in the directions of the upper side plate and the lower side plate, the width of the main grooves is 17mm, the depth of the main grooves is 18mm, and the main grooves are structurally designed in a horn-shaped inclined downward mode in the vertical direction, so that the longitudinal section of the central zigzag groove 31 is in an inverted trapezoid shape. The internal corner of the transition part of the groove bottom of the central zigzag groove 31 is an arc surface with the radius of 2.5 mm.

In some specific embodiments, the main inclined grooves 4 and the shoulder inclined grooves 5 are two table structures, and each of the two table structures comprises a wide groove and a narrow groove which are arranged on the upper and lower concentric surfaces, wherein the width of the wide groove is 4mm, and the depth of the wide groove is 4mm; the width of the narrow groove is 0.8mm, and the depth is 5mm; the internal corner of the transition between the wide groove and the narrow groove adopts an arc surface with the radius of 0.5mm, and the internal corner of the transition between the bottom of the narrow groove adopts an arc surface with the radius of 0.4 mm.

In some specific embodiments, the width of the straight stone removal channel region 32 is 18mm, the depth is 18mm, and the internal corner at the channel bottom transition is an arc surface with a radius of 2 mm; the plurality of stone discharging blocks 33 are distributed at the trench bottom of the stone discharging straight trench region 32, the length of the stone discharging blocks 33 is 10mm, the width is 4mm, and the height is 4mm.

In some specific embodiments, the straight stone removal ditch area 32 is provided with a plurality of transverse ditches 8 at equal intervals, the lengths of the transverse ditches 8 are consistent with the widths of the straight stone removal ditch area 32, the ditch widths change along with the shapes of the pattern blocks, so that the straight stone removal ditch area 32 is divided into a plurality of straight stone removal ditch subareas 9 by the plurality of transverse ditches 8, and the stone removal blocks 33 and the connecting ridges are arranged in the corresponding straight stone removal ditch subareas 9. More specifically, the depth of the transverse groove 8 is 23mm, and the internal corner at the transition of the groove bottom is an arc surface with the radius of 2 mm. More preferably, the lateral grooves 8 in the 2 straight groove regions 32 are arranged in a staggered manner along the shape of the block.

In some specific embodiments, 7 stone discharging blocks 33 are arranged in the stone discharging straight ditch subarea 9, and the stone discharging and water discharging performance of the tire is improved through the stone discharging blocks 33.

In some specific embodiments, the tire tread is provided with a shoulder pattern area 22 at two sides of the tire near the tire shoulder, the width of the shoulder pattern area 22 is 54.3mm, and a plurality of shoulder inclined grooves 5 inclined to the left side are uniformly distributed on the side of the shoulder pattern area 22 near the tire center, namely, the extending length of the shoulder inclined grooves 5 along the width direction of the tire tread 1 is 28mm. More specifically, the width of the shoulder inclined groove 5 is 4mm, the depth is 4mm, and the inclination angles of the shoulder inclined groove 5 and the shoulder inclined groove 5 with respect to the tire axial direction are 50 °. The internal corner of the transition part of the bottom of the inclined groove 5 of the tire shoulder is an arc surface with the radius of 0.4-0.6mm, and the end part of the inclined groove 5 of the tire shoulder is in a semicircular arc surface shape with the radius of 1-3 mm. The rationalized design of the tire shoulder pattern blocks greatly improves the rigidity and the eccentric wear resistance of the tire shoulder.

In some specific embodiments, the tire tread 1 is circumferentially provided with a plurality of under-shoulder grooves 6 on both sides, the under-shoulder grooves 6 extending from the shoulder to under the shoulder; the shoulder-below pattern groove 6 is of a two-table structure and comprises a wide groove and a narrow groove which are arranged on the upper and lower concentric surfaces, and the wide groove and the narrow groove are in transition through an arc surface. More specifically, the width of the wide groove is 18mm, and the depth is 3mm; the width of the narrow groove is 12mm, and the depth is 4mm; the external corner at the transition between the top of the wide groove and the tire tread 1 is an arc surface with the radius of 3mm; the internal corner at the transition part of the wide ditch bottom is an arc surface with the radius of 2 mm; the external corner at the transition part between the wide groove and the narrow groove is an arc surface with the radius of 2 mm; the internal corner of the transition part of the narrow groove bottom is an arc surface with the radius of 2 mm. The design of the groove below the shoulder effectively improves the heat dissipation of the shoulder and avoids shoulder cracks.

In some particular embodiments, the tire tread 1 is provided with a plurality of vent holes 7 therethrough. The exhaust holes 7 are arranged to facilitate exhaust during vulcanization, prevent the air from causing pattern fillets and side wall shortage, promote the flow of sizing materials and lead the sizing materials to be vulcanized more uniformly. More specifically, the diameter of the vent hole 7 is 0.8mm.

The previous description of the embodiments is provided to facilitate a person of ordinary skill in the art in order to make and use the present utility model. It will be apparent to those skilled in the art that various modifications can be readily made to these embodiments and the generic principles described herein may be applied to other embodiments without the use of the inventive faculty. Therefore, the present utility model is not limited to the above-described embodiments, and those skilled in the art, based on the present disclosure, should make improvements and modifications without departing from the scope of the present utility model.

Claims (10)

1. The tire tread pattern structure is characterized by comprising a central zigzag pattern groove (31) arranged in the middle of the tire tread (1), and a main pattern area (21), a stone-discharging straight groove area (32) and a tire shoulder pattern area (22) which are sequentially distributed on two sides of the central zigzag pattern groove (31) from inside to outside;

The central zigzag groove (31) has a zigzag groove-like structure; the stone discharging straight ditch area (32) is provided with straight ditches, a plurality of stone discharging blocks (33) are arranged in the straight ditches at intervals along the length direction, and connecting ridges are arranged among the plurality of stone discharging blocks (33);

A main inclined groove (4) is arranged on the main pattern area (21), one end of the main inclined groove (4) is connected to a folding angle of the folding line groove-shaped structure, and the other end of the main inclined groove is connected with the straight groove;

The tire shoulder pattern area (22) is provided with a tire shoulder inclined groove (5);

The shoulder inclined grooves (5) and the adjacent main inclined grooves (4) are in a continuous groove-shaped structure broken by straight grooves.

2. Tyre tread pattern structure according to claim 1, characterized in that the central meandering groove (31) has a width of 15-19mm, a depth of 16-20mm, a longitudinal section of inverted trapezoid, and an internal corner at the groove bottom transition being an arc surface with a radius of 2-3 mm.

3. Tyre tread pattern structure according to claim 1, characterized in that the main inclined grooves (4) and the shoulder inclined grooves (5) are of two-stage structure, comprising a wide groove and a narrow groove arranged on a top-bottom concentric surface,

The width of the wide groove is 3-5mm, and the depth is 3-5mm; the width of the narrow groove is 0.6-1.0mm, and the depth is 4-6mm;

The wide groove and the narrow groove are transited through an arc surface with the radius of 0.4-0.6 mm.

4. Tyre tread pattern structure according to claim 1, characterized in that said straight channel area (32) for removing stones has a width of 16-20mm, a depth of 16-20mm and an internal angle at the transition of the channel bottom of an arc of radius 1-3 mm; the length of the stone removing block (33) is 8-12mm, the width is 3-5mm, and the height is 3-5mm.

5. A tire tread pattern structure according to claim 1, wherein a plurality of transverse grooves (8) are distributed in the straight groove area (32) at intervals, the plurality of transverse grooves (8) divide the straight groove area (32) into a plurality of straight groove areas (9), and the stone discharging blocks (33) and the connecting ridges are arranged in the corresponding straight groove areas (9).

6. Tyre tread pattern according to claim 5, characterized in that the depth of the transverse grooves (8) is 21-25mm and the internal angle at the groove bottom transition is an arc surface with a radius of 1-3 mm.

7. Tyre tread pattern according to claim 1, wherein the shoulder pattern area (22) has a width of 53-56mm.

8. Tyre tread pattern structure according to claim 1, characterized in that the extension length of the shoulder inclined groove (5) along the width direction of the tyre tread (1) is 26-30mm, the internal angle at the groove bottom transition is an arc surface with the radius of 0.4-0.6mm, and the end part of the shoulder inclined groove (5) is in a semicircular arc surface shape with the radius of 1-3 mm; the inclination angles of the tire shoulder inclined grooves (5) and the tire shoulder inclined grooves (5) relative to the axial direction of the tire are 45-55 degrees.

9. Tyre tread pattern structure according to claim 1, characterized in that a plurality of under-shoulder grooves (6) are circumferentially arranged on both sides of the tyre tread (1), the under-shoulder grooves (6) extending from the shoulder to under the shoulder; the shoulder-below pattern groove (6) is of a two-table structure and comprises a wide groove and a narrow groove which are arranged on the upper and lower concentric surfaces, and the wide groove and the narrow groove are in transition through an arc surface;

The width of the wide groove is 16-20mm, and the depth is 1-5mm; the width of the narrow groove is 10-14mm, and the depth is 2-6mm;

The external corner at the transition part between the top of the wide groove and the tire tread (1) is an arc surface with the radius of 2-4 mm;

the internal corner of the transition part of the wide groove bottom is an arc surface with the radius of 1-3 mm;

The external corner at the transition part between the wide groove and the narrow groove is an arc surface with the radius of 1-3 mm;

the internal corner of the transition part of the narrow groove bottom is an arc surface with the radius of 1-3 mm.

10. Tyre tread pattern structure according to claim 1, wherein said tyre tread (1) is provided with a plurality of air vents (7) through it.