CN214112190U

CN214112190U - All-terrain off-road tire

Info

Publication number: CN214112190U
Application number: CN202023204224.4U
Authority: CN
Inventors: 王锡寅; 张烩; 邢程; 蔡莹莹
Original assignee: Anhui Giti Radial Tire Co Ltd
Current assignee: Anhui Giti Radial Tire Co Ltd
Priority date: 2020-12-25
Filing date: 2020-12-25
Publication date: 2021-09-03
Anticipated expiration: 2030-12-25

Abstract

The utility model discloses a full road condition cross-country tire, which comprises a tire tread with tire tread patterns arranged in the circumferential direction, wherein the tire tread patterns comprise an upper mold pattern and a lower mold pattern which are arranged in central symmetry; the upper decorative pattern comprises a first longitudinal groove extending along the circumferential direction of the tire, a first middle decorative pattern block positioned between the first longitudinal groove and the center line of the tire, and a decorative pattern unit arranged on the first middle decorative pattern block along the circumferential direction; the plough pattern unit comprises a first groove which extends from the first longitudinal groove to the center line of the tire in a gradually narrowing mode, a second groove which extends from the inner end of the first groove of the adjacent plough pattern unit to the middle of the first groove of the plough pattern unit in a gradually narrowing mode, and a third groove which penetrates through the second groove and is arranged in the same direction as the first groove.

Description

All-terrain off-road tire

Technical Field

The utility model relates to a tire technical field, concretely relates to all road conditions cross country tire.

Background

All terrain off-road tires are required to provide good performance to the vehicle under a variety of road conditions. The overall design of all-road-condition off-road tire patterns is block-shaped, the noise and the oil saving performance of the tire are generally poor, and meanwhile, the tire needs to have good ground holding power and self-cleaning performance when running on a bad road condition; the national standard puts higher requirements on environmental protection and noise, and the noise and rolling resistance performance of the all-road-condition off-road tire need to be optimally designed.

In the prior art, the comprehensive consideration of the noise performance, the ground gripping performance, the self-cleaning performance and the drainage performance of the tire is lacked, so that certain performance is improved while the other performances are obviously reduced.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model provides a full road conditions cross country tire.

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

a kind of all road conditions cross country tire, including its circumference arranges the tread of the tread pattern, the said tread pattern includes taking the form of upper mold pattern and lower mold pattern that the centre is symmetrical to arrange; the upper decorative pattern comprises a first longitudinal groove extending along the circumferential direction of the tire, a first middle decorative pattern block positioned between the first longitudinal groove and the center line of the tire, and a decorative pattern unit arranged on the first middle decorative pattern block along the circumferential direction; the plough pattern unit comprises a first groove which extends from the first longitudinal groove to the center line of the tire in a gradually narrowing mode, a second groove which extends from the inner end of the first groove of the adjacent plough pattern unit to the middle of the first groove of the plough pattern unit in a gradually narrowing mode, and a third groove which penetrates through the second groove and is arranged in the same direction as the first groove.

Further, an included angle α between a tangent of the center line of the first groove at the starting point thereof and the center line of the first longitudinal groove satisfies: alpha is more than or equal to 30 degrees and less than or equal to 60 degrees.

Further, the upper die pattern further comprises a first shoulder pattern block arranged on the outer side of the first longitudinal groove, and an S-shaped steel sheet pattern is transversely arranged on the first shoulder pattern block.

Furthermore, a spine-shaped bulge is fixedly arranged at the bottom of the first longitudinal groove.

Further, the height H of the spine-shaped protrusion and the height GD of the first longitudinal groove have the following relationship: H/GD is 0.21-0.31.

Further, the included angle a1 between the first longitudinal groove outer side wall and the vertical direction and the included angle a2 between the first longitudinal groove inner side wall and the vertical direction have the following relations: a1-a2 is 2-4 degrees.

Furthermore, gear-shaped bulges are arranged at the junction of the groove bottom and the outer side wall of the first longitudinal groove at equal intervals along the circumferential direction of the tire.

Compared with the prior art, the utility model has the advantages that:

through carrying out bionic design, size optimal design to the decorative pattern, the ground gripping performance, the noise performance and the drainage performance of tire have been improved in the synthesis.

Drawings

FIG. 1 is a schematic structural diagram of the tread pattern of the present invention;

FIG. 2 is a sectional view taken at Da-Db in FIG. 1;

FIG. 3 is a schematic structural view of the gear-shaped protrusions of the present invention;

fig. 4 is a cross-sectional view taken at N-N of fig. 3.

Detailed Description

A preferred embodiment of the present invention will be described in detail below with reference to the accompanying drawings.

As shown in fig. 1, an all terrain off-road tire comprises a tread having a tread pattern circumferentially arranged thereon, the tread pattern comprising an upper pattern 1 and a lower pattern 2 arranged in central symmetry; the upper decorative pattern comprises a first longitudinal groove 12 extending along the circumferential direction of the tire, a first middle decorative pattern block 11 positioned between the first longitudinal groove and the center line of the tire, and a decorative pattern unit arranged on the first middle decorative pattern block along the circumferential direction; the plough pattern unit comprises a first groove 14 which extends from the first longitudinal groove to the central line of the tyre in a gradually narrowing mode, a second groove 15 which extends from the inner end of the first groove of the adjacent plough pattern unit to the middle part of the first groove of the plough pattern unit in a gradually narrowing mode, and a third groove 16 which penetrates through the second groove and is arranged in the same direction as the first groove.

The first groove and the second groove are similar in shape, are sickle-shaped, and have a certain radian from wide to narrow.

The utility model discloses in, go up mould decorative pattern and lower mould decorative pattern centrosymmetric, the slot that goes up the mould decorative pattern promptly can coincide with the corresponding slot of lower mould decorative pattern after central symmetric transform.

Off-road all-terrain tires need to have sufficient grip to allow normal travel on muddy roads and snow, with the center and shoulder positions of the tire providing the primary grip.

As shown in the position A of fig. 1, the first groove, the second groove and the third groove are surrounded to form a plough shape, the first middle pattern block adopts the plough-shaped block-shaped bionic design to simulate the plough generated in ploughing, so that the middle part of the tread can deeply grab into mud, and the tire is ensured to have enough ground grabbing force on muddy roads and snowy lands.

All terrain off-road tires are required to have good stability on good road conditions. When the horse runs quickly, people can sit on the horse stably without jolting; the position in the tire for ensuring the stability of the tire is the central position of the tire, the utility model adopts the bionic design of horseshoe shape and simulates the crescent arc of the horseshoe shape; as shown in the position B in fig. 1, the central pattern block of the tire adopts a horseshoe-shaped crescent design, so that the tire has sufficient grip and the stability of the tire in high-speed running is improved.

The first longitudinal groove and the second longitudinal groove are arranged on the shoulder of the tire, so that the drainage performance of the tire surface is improved, the tire has enough grip on a water accumulation road surface, and the running safety of a vehicle is ensured.

As shown in fig. 1, an included angle α between a tangent of the center line of the first groove at the starting point thereof and the center line of the first longitudinal groove satisfies: alpha is more than or equal to 30 degrees and less than or equal to 60 degrees.

The main source of noise is cavity resonance sound and the air pump effect that produce when tread and road surface contact, and for the noise that reduces the air pump effect and produce, mainly starts through optimizing horizontal ditch angle or reasonable tread pattern shape, the utility model provides an angle interval of first slot is 30 ~ 60, can effectively reduce the noise that tire air pump effect produced.

As shown in fig. 1, the upper pattern further includes a first shoulder block 13 disposed outside the first longitudinal groove, and the first shoulder block is transversely provided with an S-shaped steel sheet pattern 131.

When a vehicle runs on the ice surface, a layer of water film can be formed between the tire and the ice, so that the surface of the tire can not be in direct contact with the ice surface, the ground grabbing force of the vehicle is insufficient, and a fine cutter groove design is adopted; the steel sheet decorative pattern can adsorb the water that the ice surface melts to the sword inslot, adopts S-shaped sword groove design main objective to increase the interior water storage space of tire, and the water film that effectual absorption ice surface produced increases the area of contact of tire and ice surface, promotes tire ice ground and grabs the land fertility.

The addition of the bump blocks on the groove bottom and the groove wall can effectively improve the noise of the tire, but the addition of the bump blocks on the groove wall can affect the drainage performance of the tire; in order to ensure the drainage of the tire, the height of the protruding blocks is reasonable, and the arrangement of the protruding blocks is reasonable.

As shown in figure 1, a spine-shaped bulge 17 is fixedly arranged at the bottom of the first longitudinal groove.

As shown in fig. 2, the height H of the spine-shaped protrusion and the height GD of the first longitudinal groove have the following relationship: H/GD is 0.21-0.31.

The cross section of spine shape protruding piece is like figure 2, and spine shape protruding piece can be in the same place with earth interlocking, improves the land fertility of grabbing of tire, and spine shape protruding piece height is reasonable, can not occupy too much longitudinal furrow space to influence the drainage of tire, its reasonable height range: H/GD is 0.21-0.31; the grip of the muddy road condition of the tire is improved to the maximum extent while the drainage of the tire is ensured.

The tire noise can be reduced by changing the resonance frequency of the tire, and the cavity resonance sound of the tire can be reduced by adding the spine-shaped convex blocks at the bottom of the longitudinal groove of the tire.

As shown in fig. 2, the included angle a1 between the first longitudinal groove outer side wall and the vertical direction and the included angle a2 between the first longitudinal groove inner side wall and the vertical direction have the following relationships: a1-a2 is 2-4 degrees.

The off-road tire is frequently used on a sand and stone road surface, and has higher requirements on the self-cleaning performance of the tire; the utility model discloses a change the angle of indulging ditch both sides wall and change the atress condition of indulging the interior stone of ditch, make and indulge ditch both sides wall and to the stone applied force difference, indulge the interior stone of pressing from both sides of ditch then more easily with the tire separation, for reaching above-mentioned effect, the both sides wall angle difference value should satisfy certain relation, in this embodiment, a1-a2 is 2 ~ 4.

As shown in fig. 3 and 4, gear-shaped protrusions 18 are arranged at the interface of the groove bottom and the outer side wall of the first longitudinal groove at equal intervals along the circumferential direction of the tire.

The gear-shaped protrusions comprise upper teeth and lower teeth, and the upper teeth are connected with the lower teeth through gear arcs.

In order to improve the grip force of the road condition of the mud and snow of the tire, the bulge is required to be arranged in the longitudinal ditch, the existing design only adds one bulge, the too large bulge can influence the drainage performance of the tire, and the too small bulge cannot increase the grip force effect; the grip force is increased, and the drainage performance is kept.

The prior art has not taken into account the overall performance of the tire in a comprehensive and systematic manner, but rather has taken into account changes in individual factors that result in some performance improvements while others degrade. The utility model discloses a take into account in the whole, the improvement tire each item performance of reasonable system.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein, and any reference signs in the claims are not intended to be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. A full road condition off-road tyre comprises a tread with a tread pattern arranged on the circumference, and is characterized in that the tread pattern comprises an upper mold pattern (1) and a lower mold pattern (2) which are arranged in central symmetry; the upper decorative pattern comprises a first longitudinal groove (12) extending along the circumferential direction of the tire, a first middle decorative block (11) positioned between the first longitudinal groove and the center line of the tire, and a decorative pattern unit arranged on the first middle decorative block along the circumferential direction; the plough pattern unit comprises a first groove (14) which extends from the first longitudinal groove to the central line of the tire in a gradually narrowing mode, a second groove (15) which extends from the inner end of the first groove of the adjacent plough pattern unit to the middle part of the first groove of the plough pattern unit in a gradually narrowing mode, and a third groove (16) which penetrates through the second groove and is arranged in the same direction as the first groove.

2. The all terrain off-road tire of claim 1, wherein: an included angle alpha between a tangent of the center line of the first groove at the starting point and the center line of the first longitudinal groove satisfies the following condition: alpha is more than or equal to 30 degrees and less than or equal to 60 degrees.

3. The all terrain off-road tire of claim 1, wherein: the upper die pattern further comprises a first shoulder pattern block (13) arranged on the outer side of the first longitudinal groove, and an S-shaped steel sheet pattern (131) is transversely arranged on the first shoulder pattern block.

4. The all terrain off-road tire of claim 1, wherein: the bottom of the first longitudinal groove is fixedly provided with a spine-shaped bulge (17).

5. The all terrain off-road tire of claim 4, wherein: the height H of the spine-shaped protrusion and the height GD of the first longitudinal groove have the following relationship: H/GD is 0.21-0.31.

6. The all terrain off-road tire of claim 1, wherein: the included angle a1 between the outer side wall of the first longitudinal groove and the vertical direction and the included angle a2 between the inner side wall of the first longitudinal groove and the vertical direction have the following relations: a1-a2 is 2-4 degrees.

7. The all terrain off-road tire of claim 1, wherein: gear-shaped bulges (18) are arranged at the junction of the groove bottom and the outer side wall of the first longitudinal groove at equal intervals along the circumferential direction of the tire.