CN212219801U

CN212219801U - Spare tire

Info

Publication number: CN212219801U
Application number: CN202020912888.7U
Authority: CN
Inventors: 刘坤; 张勇; 郝鹏程; 乔元梅; 苏国庆; 任振兴; 周兆刚; 尤鑫
Original assignee: Qingdao Lunyun Design And Research Institute Co ltd
Current assignee: Qingdao Lunyun Design And Research Institute Co ltd
Priority date: 2020-05-26
Filing date: 2020-05-26
Publication date: 2020-12-25
Anticipated expiration: 2030-05-26

Abstract

The utility model discloses a spare tire, which comprises a first main groove and a second main groove which are symmetrically arranged at two sides of an equator line, wherein the tread pattern is divided into a central pattern block, a first pattern block and a second pattern block by the first main groove and the second main groove; the central pattern block comprises a central groove, a central transverse groove, a first transverse groove and a second transverse groove, wherein the central groove, the central transverse groove, the first transverse groove and the second transverse groove are arranged on an equator line and are arranged along the circumferential direction of the equator line; a third transverse groove is formed in the first pattern block, and a fourth transverse groove is formed in the second pattern block; the tire body is characterized in that the central transverse groove, the first transverse groove, the second transverse groove, the third transverse groove and the fourth transverse groove are all arranged in a plurality of numbers, the first transverse groove and the second transverse groove are alternately arranged with the central transverse groove along the circumferential direction of the tire body, the first transverse groove and the third transverse groove are alternately arranged along the circumferential direction of the tire body, and the second transverse groove and the fourth transverse groove are alternately arranged along the circumferential direction of the tire body. The spare tire has good impact resistance and light weight.

Description

Spare tire

Technical Field

The utility model belongs to the technical field of the tire, concretely relates to spare tire.

Background

When the automobile runs on the road surface, the tire burst is caused by accidents due to the use reasons of road conditions, driving and the like; the driver takes out the spare tire from the trunk and replaces the spare tire on the automobile by himself. Professional spare tires are not used frequently in passenger trunks and therefore have very stringent weight requirements. Under the circumstances, how to ensure that the spare tire can meet the basic performance requirements of basically high-speed running, impact resistance and the like during temporary use and ensure the requirement of the fuel economy of the spare tire vehicle for passengers becomes the key point of the spare tire designer.

Disclosure of Invention

Not enough to prior art, the to-be-solved technical problem of the utility model is that, provide the spare tire, this spare tire has better resistant striking performance, and the security is stronger, and the quality can satisfy spare tire's lightweight requirement lighter.

In order to achieve the above object, the utility model discloses a technical scheme be:

a spare tire comprises a tread pattern, wherein the tread pattern comprises a first main groove and a second main groove which are symmetrically arranged on two sides of an equator line, and the first main groove and the second main groove are arranged along the circumferential direction of a tire body; the first main groove and the second main groove divide the tread pattern into a central pattern block, a first pattern block and a second pattern block, the central pattern block, the first pattern block and the second pattern block are all arranged along the circumferential direction of the tire body, the central pattern block is positioned between the first main groove and the second main groove, and the first pattern block and the second pattern block are arranged on two sides of the central pattern block and are respectively close to the first main groove and the second main groove; the central pattern block comprises a central groove arranged on the equator line and arranged along the circumferential direction of the equator line, a plurality of central transverse grooves arranged along the circumferential direction of the central groove, a first transverse groove communicated with the first main groove, and a second transverse groove communicated with the second main groove; a third transverse groove communicated with the first main groove is formed in the first pattern block, and a fourth transverse groove communicated with the second main groove is formed in the second pattern block; the center of the central transverse groove is located on an equator line, the first transverse groove, the second transverse groove, the third transverse groove and the fourth transverse groove are all provided in a plurality, the first transverse groove and the second transverse groove are alternately arranged with the central transverse groove along the circumferential direction of the tire body, the first transverse groove and the third transverse groove are alternately arranged along the circumferential direction of the tire body, and the second transverse groove and the fourth transverse groove are alternately arranged along the circumferential direction of the tire body.

Preferably, the first pattern block is provided with a plurality of first shoulder transverse grooves, the second pattern block is provided with a plurality of second shoulder transverse grooves, the first shoulder transverse grooves and the third transverse grooves are alternately arranged along the circumferential direction of the tire body, and the second shoulder transverse grooves and the fourth transverse grooves are alternately arranged along the circumferential direction of the tire body.

Preferably, the plurality of central transverse grooves, the plurality of first transverse grooves, the plurality of second transverse grooves, the plurality of third transverse grooves, the plurality of fourth transverse grooves, the plurality of first shoulder transverse grooves and the plurality of second shoulder transverse grooves are all uniformly arranged along the circumferential direction of the tire body.

Preferably, the first shoulder transverse groove and the second shoulder transverse groove are both arc-shaped grooves.

Preferably, the central lateral groove is inclined, and the first lateral groove, the second lateral groove, the third lateral groove, and the fourth lateral groove are inclined in the same direction as the central lateral groove.

Preferably, the first transverse grooves and the second transverse grooves are respectively arranged on two sides of an equator and are symmetrically arranged in a reverse offset mode relative to the equator, and the offset direction of the first transverse grooves and the second transverse grooves is along the circumferential direction of the tire body; the third transverse groove and the fourth transverse groove are respectively arranged on two sides of the equator and are symmetrically arranged in a reverse dislocation way relative to the equator, and the dislocation direction of the third transverse groove and the fourth transverse groove is along the circumferential direction of the tire body; the first tire shoulder transverse groove and the second tire shoulder transverse groove are arranged on two sides of the equator and are arranged oppositely and symmetrically relative to the equator in a staggered mode, and the staggered direction of the first tire shoulder transverse groove and the second tire shoulder transverse groove is along the circumferential direction of the tire body.

Preferably, main groove abrasion marks protruding out of the bottoms of the first transverse grooves and the second transverse grooves are arranged in the first transverse grooves and the second transverse grooves; the tire shoulder is provided with a tire shoulder abrasion mark protruding out of the surface of the tire shoulder.

Preferably, the spare tire is including the tread that is equipped with the tread pattern, the matrix, steel wire bead filler, the apex rubber core, belted layer and side wall, the matrix including the matrix turn-up portion that is located the innermost matrix main part of tire and outside, the matrix main part be located the tire inboard and extend to steel wire bead filler below, the matrix turn-up portion begin in the matrix main part and extend and walk around the outside of steel wire bead filler turn-up to the tire, the apex rubber core be located the matrix inside and connect in steel wire bead filler upper end, the belted layer is located between tread and the matrix.

Preferably, the carcass is a single-layer 1500D/2 carcass fiber cord, and the cord density of the carcass fiber cord is 28 epi; the belt layers were provided as two layers of 3 × 0.28ST steel cords.

Preferably, the turn-up height of the carcass turn-up portion is greater than or equal to 75mm, and the thickness of the upper portion of the sidewall is set to (3.5 ± 0.5) mm; the height of the triangular rubber core is greater than or equal to 35 mm.

Preferably, the bead ring comprises a plurality of bead ring groups, each bead ring group comprising a plurality of bead rings.

Preferably, the steel wire bead rings are formed by arranging the steel wire rings in a 3-4-3-2 steel wire ring arrangement mode.

Compared with the prior art, the utility model discloses an advantage lies in with positive effect: provided is a spare tire which has good impact resistance, is more safe, has light weight and can meet the light weight requirement of the spare tire.

Drawings

FIG. 1 is a schematic structural view of a spare tire of the present invention;

FIG. 2 is a cross-sectional view of a spare tire of the present invention;

in the above figure: 1-tread, 2-shoulder, 3-center pattern block, 4-first pattern block, 5-second pattern block, 6-first main groove, 7-second main groove, 8-center groove, 9-first shoulder transverse groove, 10-center transverse groove, 11-fourth transverse groove, 12-first transverse groove, 13-main groove abrasion mark, 14-shoulder abrasion mark, 15-second transverse groove, 16-third transverse groove, 17-second shoulder transverse groove, 18-belt layer, 19-carcass main portion, 19-2-carcass turnup portion, 20-triangular rubber core, 21-sidewall and 22-steel wire bead ring.

Detailed Description

The present invention is specifically described below by way of exemplary embodiments. It should be understood, however, that elements, structures and features of one embodiment may be beneficially incorporated in other embodiments without further recitation.

It should be noted that in the description of the present invention, the terms "inside", "outside", "upper", "lower", "left", "right", "front", "rear", etc. indicate the positional relationship based on the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention.

Example (b):

as shown in fig. 1, a spare tire includes a tread pattern including a first main groove 6 and a second main groove 7 symmetrically provided on both sides of an equator (a dotted line in fig. 1 represents the equator), the first main groove 6 and the second main groove 7 being both provided in a circumferential direction of a tire body; the first main groove 6 and the second main groove 7 divide the tread pattern into a central pattern block 3, a first pattern block 4 and a second pattern block 5, the central pattern block 3, the first pattern block 4 and the second pattern block 5 are all arranged along the circumferential direction of the tire body, the central pattern block 3 is positioned between the first main groove 6 and the second main groove 7, the first pattern block 4 and the second pattern block 5 are arranged on two sides of the central pattern block 3, and the first pattern block 4 and the second pattern block 5 are respectively arranged close to the first main groove 6 and the second main groove 7; the central pattern block 5 comprises a central groove 8 arranged on the equatorial line and arranged along the circumferential direction thereof, a plurality of central transverse grooves 10 arranged along the circumferential direction of the central groove 8, a first transverse groove 12 communicating with the first main groove 6, and a second transverse groove 15 communicating with the second main groove 7; a third transverse groove 16 communicated with the first main groove 6 is arranged on the first pattern block 4, and a fourth transverse groove 11 communicated with the second main groove 7 is arranged on the second pattern block 5; the center of the central transverse groove 10 is located on an equatorial line, the first transverse groove 12, the second transverse groove 15, the third transverse groove 16 and the fourth transverse groove 11 are provided in plurality, the first transverse groove 12 and the second transverse groove 15 are alternately arranged with the central transverse groove 10 along the circumferential direction of the tire body, the first transverse groove 12 and the third transverse groove 16 are alternately arranged along the circumferential direction of the tire body, and the second transverse groove 15 and the fourth transverse groove 11 are alternately arranged along the circumferential direction of the tire body.

Adopt above-mentioned spare tire's tread pattern design, the tread has better structural strength, makes the spare tire of this embodiment have better crashworthiness, and the security is stronger, and compares in conventional spare tire, and the pattern groove proportion of the tread of this embodiment is higher, can reduce the tire quality when guaranteeing tire structural strength, satisfies spare tire's lightweight requirement.

Specifically, a plurality of first shoulder transverse grooves 9 are formed in the first pattern block 4, a plurality of second shoulder transverse grooves 17 are formed in the second pattern block 5, the first shoulder transverse grooves 9 and the third transverse grooves 16 are alternately arranged along the circumferential direction of the tire body, and the second shoulder transverse grooves 17 and the fourth transverse grooves 11 are alternately arranged along the circumferential direction of the tire body. The design of the tire shoulder groove can enhance the anti-skid performance and the ground gripping performance of the spare tire, improve the safety performance of the spare tire, and simultaneously, the tire shoulder groove can further improve the proportion of the pattern grooves of the tire tread and further reduce the quality of the tire.

Specifically, the plurality of central transverse grooves 10 are uniformly arranged along the circumferential direction of the tire body, the plurality of first transverse grooves 12 are uniformly arranged along the circumferential direction of the tire body, the plurality of second transverse grooves 15 are uniformly arranged along the circumferential direction of the tire body, the plurality of third transverse grooves 16 are uniformly arranged along the circumferential direction of the tire body, the plurality of fourth transverse grooves 11 are uniformly arranged along the circumferential direction of the tire body, the plurality of first shoulder transverse grooves 9 are uniformly arranged along the circumferential direction of the tire body, and the plurality of second shoulder transverse grooves 17 are uniformly arranged along the circumferential direction of the tire body. The pattern grooves are uniformly distributed along the circumferential direction of the tire body, so that the structural strength of the tire tread can be better ensured, and the impact resistance of the spare tire is further improved.

Specifically, the first shoulder transverse groove 9 and the second shoulder transverse groove 17 are both arc-shaped grooves.

Specifically, the central transverse groove 10 is disposed obliquely, and the first transverse groove 12, the second transverse groove 15, the third transverse groove 16 and the fourth transverse groove 11 are all inclined in the same direction as the central transverse groove 10.

Specifically, the first transverse grooves 12 and the second transverse grooves 15 are respectively arranged on two sides of an equator, and are symmetrically arranged in a reverse offset manner relative to the equator, and the offset direction is along the circumferential direction of the tire body; the third transverse grooves 16 and the fourth transverse grooves 11 are respectively arranged on two sides of an equator, and are symmetrically arranged in a reverse dislocation way relative to the equator, and the dislocation direction is along the circumferential direction of the tire body; the first shoulder transverse groove 9 and the second shoulder transverse groove 17 are arranged on two sides of the equator, and are arranged oppositely and symmetrically relative to the equator in a staggered mode, and the staggered direction of the first shoulder transverse groove and the second shoulder transverse groove is along the circumferential direction of the tire body. The pattern grooves adopt a symmetrical structure, so that the structural strength of the tread can be better ensured, and the impact resistance of the spare tire is further improved.

Specifically, the first transverse groove 12 and the second transverse groove 15 are both provided with a main groove abrasion mark 13 protruding out of the groove bottom; the tire shoulder 2 is provided with a tire shoulder abrasion mark 14 protruding out of the surface of the tire shoulder 2. The main groove wear indicator 13 and the shoulder wear indicator 14 are arranged to facilitate observation of the wear degree of the spare tire.

Specifically, as shown in fig. 2, the spare tire includes a tread 1 provided with a tread pattern, a carcass 19, a steel bead filler 22, a bead filler 20, a belt layer 18 and a sidewall 21, the carcass 19 includes a carcass main portion 19-1 located at the innermost side of the tire and a carcass turnup portion 19-2 located at the outer side, the carcass main portion 19-1 is located at the inner side of the tire and extends to the lower side of the steel bead filler 22, the carcass turnup portion 19-2 starts from the carcass main portion 19-1 and extends to wrap around the steel bead filler 22 to the outer side of the tire, the bead filler 20 is located inside the carcass and is connected to the upper end of the steel bead filler 22, and the belt layer 18 is located between the tread 1 and the carcass 19.

Specifically, the carcass 1 is a single-layer 1500D/2 carcass fiber cord, and the cord density of the carcass fiber cord is 28 epi; the belt 18 is provided as two layers of 3 × 0.28ST steel cords. The spare tire of the embodiment adopts a 1500D/2 tire body fiber cord with the cord density of 28epi as the tire body 1, the fiber cord has the advantages of light specific material, high strength, low thermal shrinkage rate and high fatigue resistance, the 3 x 0.28ST steel cord as the belt layer 18 has the advantages of high strength and light weight, the two are respectively used as the tire body 1 and the belt layer 18, the structural strength of the spare tire can be ensured, the quality of the spare tire can be reduced, and the requirements of light weight of the whole vehicle, energy conservation, emission reduction and cost reduction are met.

Specifically, the turn-up height of the carcass turn-up portion 19-2 is greater than or equal to 75mm, and the thickness of the upper portion of the sidewall 21 is set to be (3.5 +/-0.5) mm; the height of the apex 20 is greater than or equal to 35 mm. The spare tire of this embodiment adopts the high turn-up design of matrix and side wall thickening design to make tire side wall rigidity become strong, and crashworthiness can be more excellent.

Specifically, the bead ring 22 includes a plurality of bead ring layers, and each bead ring layer includes a plurality of bead rings.

Specifically, the bead rings constituting the bead ring 22 are arranged in a 3-4-3-2 bead ring arrangement manner (i.e., as shown in fig. 2, 3, 4, 3, 2 bead rings are sequentially arranged in a multi-layer bead ring group). The spare tire is generally a high-flatness-ratio series, and the spare tire of the embodiment adopts a tire bead combination consisting of a triangle rubber with the height of more than or equal to 35mm and a 3-4-3-2 steel wire ring (the steel wire material is the steel wire ring with the diameter of 1.2 mm) in the material distribution design, so that the reasonable rigidity of the lower end of the tire side 6 can be ensured, the radial supporting force is improved, the harder tire wall design at the lower side can be ensured, the less deformation of the tire can be ensured in the violent driving, and the driving stability and the safety are improved.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in other forms, and any person skilled in the art may use the above-mentioned technical contents to change or modify the equivalent embodiment into equivalent changes and apply to other fields, but any simple modification, equivalent change and modification made to the above embodiments according to the technical matters of the present invention will still fall within the protection scope of the technical solution of the present invention.

Claims

1. A spare tire comprises a tread pattern, and is characterized in that the tread pattern comprises a first main groove and a second main groove which are symmetrically arranged on two sides of an equator line, and the first main groove and the second main groove are arranged along the circumferential direction of a tire body; the first main groove and the second main groove divide the tread pattern into a central pattern block, a first pattern block and a second pattern block, the central pattern block, the first pattern block and the second pattern block are all arranged along the circumferential direction of the tire body, the central pattern block is positioned between the first main groove and the second main groove, and the first pattern block and the second pattern block are arranged on two sides of the central pattern block and are respectively close to the first main groove and the second main groove; the central pattern block comprises a central groove arranged on the equator line and arranged along the circumferential direction of the equator line, a plurality of central transverse grooves arranged along the circumferential direction of the central groove, a first transverse groove communicated with the first main groove, and a second transverse groove communicated with the second main groove; a third transverse groove communicated with the first main groove is formed in the first pattern block, and a fourth transverse groove communicated with the second main groove is formed in the second pattern block; the center of the central transverse groove is located on an equator line, the first transverse groove, the second transverse groove, the third transverse groove and the fourth transverse groove are all provided in a plurality, the first transverse groove and the second transverse groove are alternately arranged with the central transverse groove along the circumferential direction of the tire body, the first transverse groove and the third transverse groove are alternately arranged along the circumferential direction of the tire body, and the second transverse groove and the fourth transverse groove are alternately arranged along the circumferential direction of the tire body.

2. The spare tire of claim 1, wherein the first block has a plurality of first shoulder lateral grooves and the second block has a plurality of second shoulder lateral grooves, the first shoulder lateral grooves and the third lateral grooves alternate in a circumferential direction of the tire body, and the second shoulder lateral grooves and the fourth lateral grooves alternate in the circumferential direction of the tire body.

3. The spare tire of claim 2, wherein the plurality of central transverse grooves, the plurality of first transverse grooves, the plurality of second transverse grooves, the plurality of third transverse grooves, the plurality of fourth transverse grooves, the plurality of first shoulder transverse grooves, and the plurality of second shoulder transverse grooves are all evenly circumferentially aligned along the tire body.

4. A spare tire as in claim 2, wherein said first shoulder transverse groove and said second shoulder transverse groove are each provided as an arcuate slot.

5. A spare tire according to claim 2, wherein the central lateral groove is disposed obliquely, and the first lateral groove, the second lateral groove, the third lateral groove, and the fourth lateral groove are all inclined in the same direction as the central lateral groove.

6. The spare tire of claim 5, wherein the first lateral grooves and the second lateral grooves are disposed on both sides of the equator and are symmetrically disposed with an inverted offset with respect to the equator, the offset being in a circumferential direction of the tire body; the third transverse groove and the fourth transverse groove are respectively arranged on two sides of the equator and are symmetrically arranged in a reverse dislocation way relative to the equator, and the dislocation direction of the third transverse groove and the fourth transverse groove is along the circumferential direction of the tire body; the first tire shoulder transverse groove and the second tire shoulder transverse groove are arranged on two sides of the equator and are arranged oppositely and symmetrically relative to the equator in a staggered mode, and the staggered direction of the first tire shoulder transverse groove and the second tire shoulder transverse groove is along the circumferential direction of the tire body.

7. The spare tire of claim 1 wherein the first and second lateral grooves each have a primary groove wear indicator protruding from the bottom of the groove; the tire shoulder is provided with a tire shoulder abrasion mark protruding out of the surface of the tire shoulder.

8. The spare tire of claim 1, comprising a tread having a tread pattern, a carcass, a bead ring, a bead filler, a belt and sidewalls, wherein the carcass comprises a carcass body portion located at the innermost side of the tire and a carcass turnup portion located at the outer side of the tire, the carcass body portion is located at the inner side of the tire and extends to the lower side of the bead ring, the carcass turnup portion starts from the carcass body portion and extends to the outer side of the tire around the bead ring, the bead filler is located inside the carcass and is connected to the upper end of the bead ring, and the belt is located between the tread and the carcass.

9. The spare tire of claim 8, wherein the carcass is provided as a single layer of 1500D/2 carcass fiber cords having a cord density of 28 epi; the belt layers were provided as two layers of 3 × 0.28ST steel cords.

10. The spare tire of claim 8, wherein the turn-up height of the carcass turn-up is greater than or equal to 75mm, the sidewall upper portion thickness is set to (3.5 ± 0.5) mm; the height of the triangular rubber core is greater than or equal to 35 mm; the steel wire bead ring comprises a plurality of layers of steel wire ring groups, and each layer of steel wire ring group comprises a plurality of steel wire rings.