CN213734455U - Tyre pattern - Google Patents

Abstract

The utility model belongs to the technical field of the tire decorative pattern, a improve tire heat dispersion's tire decorative pattern is disclosed. The tire tread part of the tire is provided with a broken line-shaped transverse groove extending from a tread end to the inner side of the tire axial direction and a plurality of longitudinal fine grooves continuously extending along the tire circumferential direction, wherein each transverse groove is provided with a main body part and a turning part, an obtuse angle is formed between each main body part and the turning part, a transverse fine groove is arranged between two adjacent transverse grooves in the tire axial direction, two ends of each transverse fine groove are connected with the turning parts of the corresponding two transverse grooves, a double-broken line-shaped fine groove is arranged between the adjacent transverse fine grooves in the tire circumferential direction, and the plurality of longitudinal fine grooves positioned in the center of the tread part, the transverse fine grooves and the double-broken line-shaped fine grooves form a radiating groove in a shape like a Chinese character 'tian'. The tire can reduce the heat accumulation of the pattern blocks, avoid the occurrence of early thermal delamination and prolong the service life of the tire.

Description

Tyre pattern

Technical Field

The utility model relates to a tire decorative pattern technical field, in particular to improve tire heat dispersion's tire decorative pattern.

Background

The ultra-large mining dump truck tire has the advantages of very harsh use conditions, large tire load, deep tread pattern, large sea-land ratio of patterns, large tire rubber shape, serious hysteresis heat generation, easy tire heat accumulation caused by long-distance running, delamination among components, serious possibility of tire ignition and even tire burst, and serious threat to personal safety and vehicle safety. Therefore, it is important to provide a tire pattern with good heat dissipation performance.

SUMMERY OF THE UTILITY MODEL

In order to solve the not good technical problem of heat dispersion of the dumper tire among the prior art, the utility model provides a tire pattern.

In order to solve the technical problem, the utility model discloses a following technical scheme:

a tire pattern comprises a tread part, wherein the tread part is provided with a fold line-shaped transverse groove extending from a tread end to the inner side of the tire axial direction and a plurality of longitudinal fine grooves continuously extending along the tire circumferential direction, each transverse groove is provided with a main body part and a turning part, an obtuse angle is formed between the main body part and the turning part, a transverse fine groove is arranged between two adjacent transverse grooves in the tire axial direction, two ends of each transverse fine groove are connected with the turning parts of the corresponding two transverse grooves, a fold line-shaped fine groove is arranged between the adjacent transverse fine grooves in the tire circumferential direction, and the plurality of longitudinal fine grooves positioned in the center of the tread part, the transverse fine grooves and the fold line-shaped fine grooves form a 'tian' -shaped heat dissipation groove.

The radiating area of the pattern block is increased by the aid of the radiating grooves in the shape like the Chinese character 'tian', the width of thin grooves forming the radiating grooves in the shape like the Chinese character 'tian' is narrow, the radiating area of the pattern block can be increased on the basis of ensuring rigidity of the pattern block, heat accumulation is reduced, each edge of the pattern block is not in a complete straight-line structure, and the radiating area of the pattern block can be increased by adopting a structure not limited to a broken-line structure.

Preferably, the double-fold-line-shaped fine groove includes a linear portion and a fold line portion, and the fold line portion intersects with the adjacent longitudinal fine groove and is interrupted after passing through the longitudinal fine groove.

The width of the longitudinal fine groove from the tire equator line to the tire tread end is gradually reduced, the depth of the longitudinal fine groove is 1/3-1/2 of the depth of the transverse groove, the groove bottom is a full-arc round corner groove bottom, and the groove wall of the longitudinal fine groove is vertical to the tire tread. The structure can prevent the rigidity of the shoulder land part from being reduced too much due to the increase of the ring groove, and simultaneously can lead the airflow to take away more heat when the vehicle runs fast, thereby reducing heat accumulation.

Preferably, the depth of the lateral fine groove is 1/5-1/4 of the depth of the lateral groove, the groove bottom is a full-arc rounded groove bottom, and the groove wall is perpendicular to the tire tread.

The utility model provides a tire shoulder land portion department of tread portion still has the rhombus radiating groove, the contained angle between the adjacent cell wall limit of rhombus radiating groove is 60-80. The rhombus radiating groove that tire shoulder land portion department set up is the closed heat dissipation slot of notch cuttype, can increase the heat radiating area of shoulder decorative pattern piece, the rhombus radiating groove have the opening and set up in the radial inboard deepening portion of the tire of opening, the opening with connect through the arc surface between the deepening, the opening with the cell wall slope that adds the deep is the same, is 20-30 with the radial contained angle between the tire, the opening with the degree of depth of deepening is the same, is 1/3 of lug depth. The rhombic heat dissipation groove of the tire shoulder land portion is provided with the opening portion and the deepening portion, is designed by a plurality of layers of grooves and is in a step shape, the thickness of the tire shoulder portion is the thickest in the whole tire, the shoulder portion is a position where the end point of the belted layer is concentrated, the tire shoulder portion is more sensitive to heat, the early damage of the end point of the belted layer is easily caused by the increase of heat generation, the heat dissipation area can be increased by increasing the grooves, and heat accumulation is reduced.

Preferably, the land-sea ratio of the tread portion is 80%. The sea-land ratio is a ratio of an area of a virtual ground contact surface where the entire groove bottom surface is buried to a tread surface area of the tire block.

To prior art not enough, the utility model provides a tire pattern, the closed rhombus radiating groove of notch cuttype has been adopted in "field" font radiating groove, the vertical stria of circumference, tire shoulder land portion department of adopting in the tire pattern jointly to constitute the cooling system of the decorative pattern piece of tire, can reduce the heat accumulation of decorative pattern piece, avoids the emergence of early heat delaminating, improves the life of tire.

Drawings

Fig. 1 is a schematic structural diagram of a tire pattern provided by the present invention;

FIG. 2 is a sectional view taken along line B-B of FIG. 1;

FIG. 3 is a cross-sectional view taken along line A-A of FIG. 1;

FIG. 4 is a schematic structural view of a rhombic heat sink provided by the utility model;

fig. 5 is a cross-sectional view taken along line C-C of fig. 1.

Detailed Description

The utility model aims at providing a tire decorative pattern to solve the not good technical problem of heat dispersion of tipper tire among the prior art.

In order to enable those skilled in the art to better understand the present invention, the following detailed description of the invention is provided in conjunction with the accompanying drawings.

Fig. 1-4 illustrate a preferred embodiment of the present invention, as shown in fig. 1, a tire pattern, having a tread portion, the tread portion has a zigzag-shaped lateral groove 1 extending inward in the tire axial direction from a tread end Te and a plurality of longitudinal narrow grooves 2 extending continuously in the tire circumferential direction, the transverse groove 1 has a main body part 1a and a turning part 1b, an obtuse angle is formed between the main body part 1a and the turning part 1b, a transverse narrow groove 3 is arranged between two adjacent transverse grooves 1 in the axial direction of the tire, two ends of the transverse narrow groove 3 are connected with the turning parts 1b of the two corresponding transverse grooves 1, a double-fold-line-shaped fine groove 4 is provided between the lateral fine grooves 3 adjacent in the tire circumferential direction, and a plurality of the longitudinal fine grooves 2a and the longitudinal fine grooves 2b located in the center of the tread portion form a heat dissipation groove in a shape of a Chinese character 'tian' with the lateral fine grooves 3 and the double-fold-line-shaped fine grooves 4.

In a preferred embodiment, the widths of the longitudinal fine grooves 2 decrease in sequence from the tire equator line to the tire tread end, the width of the longitudinal fine groove 2 on the tire equator line CL is the widest, the width of the longitudinal fine groove 2b on both sides of the equator line CL is the second, and the width of the longitudinal fine groove 2c on the shoulder land is the narrowest, as shown in fig. 2, the depth H1 of the longitudinal fine groove 2 is 1/3-1/2 of the depth of the transverse groove 1, the groove bottom is a full-arc rounded groove bottom, and the groove wall M of the longitudinal fine groove 2 is perpendicular to the tire tread surface.

Specifically, the double-folded fine groove 4 includes a linear portion 4a and a folded line portion 4b, and the folded line portion 4b intersects with the adjacent longitudinal fine groove 2b and is interrupted after passing through the longitudinal fine groove 2 b.

As shown in FIG. 3, the depth H2 of the lateral fine groove 3 is 1/5-1/4 of the depth of the lateral groove 1, the groove bottom is a full-arc rounded groove bottom, and the groove wall N is perpendicular to the tire tread.

As shown in fig. 1 and 4, the tread portion of the present invention is divided into a central land portion 7 and a shoulder land portion 6, and in a preferred embodiment, the shoulder land portion 6 of the tread portion further has a rhombic heat dissipation groove 5, an included angle between adjacent groove walls 5a of the rhombic heat dissipation groove 5 is 60 to 80 °, the rhombic heat dissipation groove has an opening portion 5b and a deepened portion 5c disposed at the inner side of the radial direction of the tire of the opening portion, the opening portion 5b is connected with the deepened portion 5c through an arc surface 5d, the opening portion 5b is the same as the slope of the groove wall of the deepened portion 5c, and is 20 to 30 ° as the included angle θ between the radial direction of the tire, and the depth H3 of the opening portion is the same as the depth H4 of the deepened portion, and is 1/3 as the depth of the transverse pattern.

Specifically, the sea-land ratio of the tread portion of the present invention is 80%.

The above is to the utility model provides a tire pattern has carried out detailed introduction. The principles and embodiments of the present invention have been explained herein using specific examples, which are presented only to assist in understanding the methods and concepts of the present invention. It should be noted that, for those skilled in the art, without departing from the principle of the present invention, the present invention can be subject to several improvements and modifications, which also fall within the scope of the claims of the present invention.

Claims (7)

1. A tire pattern having a tread portion, characterized by: the tire tread part is provided with a broken line-shaped transverse groove extending from the tire tread end to the inner side of the tire axial direction and a plurality of longitudinal fine grooves continuously extending along the tire circumferential direction, each transverse groove is provided with a main body part and a turning part, an obtuse angle is formed between each main body part and the turning part, a transverse fine groove is arranged between two adjacent transverse grooves in the tire axial direction, two ends of each transverse fine groove are connected with the corresponding turning parts of the two transverse grooves, a double-broken line-shaped fine groove is arranged between the adjacent transverse fine grooves in the tire circumferential direction, and the plurality of longitudinal fine grooves positioned in the center position of the tire tread part, the transverse fine grooves and the double-broken line-shaped fine grooves form a radiating groove in a shape like a Chinese character 'tian'.

2. A tread band as claimed in claim 1, wherein: the double-fold line-shaped narrow groove comprises a straight line part and a fold line part, wherein the fold line part intersects with the adjacent longitudinal narrow groove and is interrupted after passing through the longitudinal narrow groove.

3. A tread band as claimed in claim 1, wherein: the width of the longitudinal fine groove from the tire equator line to the tire tread end is gradually reduced, the depth of the longitudinal fine groove is 1/3-1/2 of the depth of the transverse groove, the groove bottom is a full-arc round corner groove bottom, and the groove wall of the longitudinal fine groove is vertical to the tire tread.

4. A tread band as claimed in claim 1, wherein: the depth of the transverse slot is 1/5-1/4 of the depth of the transverse groove, the groove bottom is a full-arc round corner groove bottom, and the groove wall is vertical to the tread of the tire.

5. A tread band as claimed in claim 1, wherein: the tire shoulder land portion of tread portion still has rhombus radiating groove, the contained angle between the adjacent cell wall limit of rhombus radiating groove is 60-80.

6. Tyre pattern as claimed in claim 5, wherein: rhombus radiating groove have the opening with set up in the radial inboard deepening portion of tire of opening, the opening with add between the deep and connect through the arc surface, the opening with the cell wall slope that adds the deep is the same, is 20-30 with the radial contained angle between the tire, the opening with the degree of depth that adds the deep is the same, is 1/3 of horizontal decorative pattern degree of depth.

7. A tread band as claimed in claim 1, wherein: the land-sea ratio of the tread portion is 80%.

Images