CN111439070A - Electric automobile tire with low rolling resistance noise - Google Patents
Electric automobile tire with low rolling resistance noise Download PDFInfo
- Publication number
- CN111439070A CN111439070A CN202010242006.5A CN202010242006A CN111439070A CN 111439070 A CN111439070 A CN 111439070A CN 202010242006 A CN202010242006 A CN 202010242006A CN 111439070 A CN111439070 A CN 111439070A
- Authority
- CN
- China
- Prior art keywords
- tire
- tread
- pitch
- low rolling
- rolling resistance
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000005096 rolling process Methods 0.000 title claims abstract description 17
- 239000011324 bead Substances 0.000 claims abstract description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 7
- 239000011295 pitch Substances 0.000 claims description 34
- 239000010410 layer Substances 0.000 claims description 23
- 150000001875 compounds Chemical class 0.000 claims description 12
- 230000002787 reinforcement Effects 0.000 claims description 9
- 239000002344 surface layer Substances 0.000 claims description 5
- 239000000203 mixture Substances 0.000 claims description 2
- 238000004513 sizing Methods 0.000 claims description 2
- 230000003014 reinforcing effect Effects 0.000 abstract description 4
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 238000013433 optimization analysis Methods 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
- B60C11/00—Tyre tread bands; Tread patterns; Anti-skid inserts
- B60C11/01—Shape of the shoulders between tread and sidewall, e.g. rounded, stepped or cantilevered
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
- B60C11/00—Tyre tread bands; Tread patterns; Anti-skid inserts
- B60C11/03—Tread patterns
- B60C11/032—Patterns comprising isolated recesses
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
- B60C11/00—Tyre tread bands; Tread patterns; Anti-skid inserts
- B60C11/03—Tread patterns
- B60C11/12—Tread patterns characterised by the use of narrow slits or incisions, e.g. sipes
- B60C11/1236—Tread patterns characterised by the use of narrow slits or incisions, e.g. sipes with special arrangements in the tread pattern
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
- B60C11/00—Tyre tread bands; Tread patterns; Anti-skid inserts
- B60C11/03—Tread patterns
- B60C2011/0337—Tread patterns characterised by particular design features of the pattern
- B60C2011/0339—Grooves
- B60C2011/0341—Circumferential grooves
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
- B60C11/00—Tyre tread bands; Tread patterns; Anti-skid inserts
- B60C11/03—Tread patterns
- B60C2011/0337—Tread patterns characterised by particular design features of the pattern
- B60C2011/0339—Grooves
- B60C2011/0358—Lateral grooves, i.e. having an angle of 45 to 90 degees to the equatorial plane
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
- B60C2200/00—Tyres specially adapted for particular applications
- B60C2200/04—Tyres specially adapted for particular applications for road vehicles, e.g. passenger cars
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/80—Technologies aiming to reduce greenhouse gasses emissions common to all road transportation technologies
- Y02T10/86—Optimisation of rolling resistance, e.g. weight reduction
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Tires In General (AREA)
Abstract
The invention discloses a low rolling resistance noise electric vehicle tire, which comprises a tire body and a tire crown reinforcing part, wherein the tire body and the tire crown reinforcing part form a tire main body; two beads in contact with the mounting rim for securing the tire to the rim; the tire comprises two tire shoulders, wherein the tire shoulders extend outwards from the tire bead to the tire crown in the radial direction, and when the tire shoulders are arranged at each pitch in the circumferential direction, a multi-level variable-pitch arrangement mode is adopted, wherein the arrangement mode comprises two middle pattern block parts II and a tire shoulder part I positioned between the two middle pattern block parts II; the tread is divided into a plurality of pattern blocks by the longitudinal grooves and the transverse grooves, and a plurality of narrow grooves are distributed on the circumferential surface of each pattern block and used for breaking a water film and improving the grip of the tire.
Description
Technical Field
The invention relates to the technical field of tire equipment, in particular to an electric automobile tire with low rolling resistance noise.
Background
Generally, a tire comprises: a tread cap comprising a tread rubber layer and a tread cap reinforcement. The crown reinforcement is covered by steel wires and nylon fibers along the circumferential direction of the tire; two sidewalls extending radially outward from the bead to a crown; two beads intended to come into contact with a mounting rim for fixing the tyre to the rim; at least one carcass reinforcement is anchored to each bead, usually by winding around a reinforcing structure of a circumferential steel wire.
With the increasing exhaustion of petroleum energy, the automobile industry is more and more developing towards the aspect of new energy electric automobiles. The limitation of the battery technology of the electric automobile often cannot provide higher endurance mileage. In order to ensure the high mileage of a vehicle, the tire which is the only tire of the whole vehicle and is in contact with the ground needs to have the performance requirement of low rolling resistance, and the electric vehicle instantly reaches the maximum torque when being started, so that the used tire needs higher ground holding force, but the performance of the existing tire cannot meet the requirement.
In view of the above problems, a low rolling resistance noise electric vehicle tire is now provided.
Disclosure of Invention
The invention aims to provide an electric vehicle tire with low rolling resistance noise to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme:
a low rolling resistance noise electric vehicle tyre comprises a tyre body and a tyre crown reinforcing member, wherein the tyre body comprises a main tyre surface layer, a secondary tyre surface layer and a bottom tyre surface layer;
two beads in contact with the mounting rim for securing the tire to the rim;
the tire shoulder extends outwards from the tire bead to the tire crown in the radial direction, and when the tire shoulders are distributed at each pitch in the circumferential direction, a multi-level variable-pitch arrangement mode is adopted, wherein the arrangement mode comprises two middle pattern block parts II and a tire shoulder part I positioned between the two middle pattern block parts II;
the tire tread is circumferentially covered by a rubber layer stretching across the whole axial width of the crown reinforcement and is composed of multiple layers of composite rubber materials in the radial direction, tread patterns are arranged on the tire tread and are composed of a plurality of longitudinal grooves and a plurality of transverse grooves, the tire tread is cut into a plurality of pattern blocks by the longitudinal grooves and the transverse grooves, and a plurality of narrow grooves used for breaking water films to enhance the grip force of the tire are distributed on the circumferential surface of each pattern block.
As a further scheme of the invention: the radial depth of the groove is not more than 1 mm.
As a still further scheme of the invention: the main tread layer is made of a first rubber compound having tan no less than 1.0 at 0 ℃ and has a radial thickness setting in the range of 0.1mm to 15 mm.
As a still further scheme of the invention: the sub tread layer is made of a second rubber compound having tan of not more than 0.1 at 60 ℃, and its radial thickness setting value is in the range of 0.1mm to 15 mm.
As a still further scheme of the invention: the bottom tread layer is made of a third rubber compound of extremely strong viscosity, with a set value of radial thickness in the range of 0.1mm to 15 mm.
As a still further scheme of the invention: the tire shoulder part I adopts an arrangement mode that the total pitch number is not less than sixty and the pitch type is not less than three, and the middle pattern block part II adopts an arrangement mode that the total pitch number is not less than forty and the pitch type is not less than three.
As a still further scheme of the invention: the total number of the tire shoulder parts I is sixty-four pitches, the types of the pitches are four, the total number of the pitches of the middle pattern block parts II is forty-five, and the types of the pitches are three.
Compared with the prior art, the invention has the beneficial effects that: when the tire tread is distributed at each pitch in the circumferential direction, a multi-level variable pitch arrangement mode is adopted, and the low-noise characteristic of the tire is realized through simulation optimization analysis; the tread is divided into a plurality of pattern blocks by the longitudinal grooves and the transverse grooves, and a plurality of narrow grooves are distributed on the circumferential surface of each pattern block and used for breaking a water film and improving the grip of the tire.
Drawings
Fig. 1 is a front view of a tire for an electric vehicle according to a preferred embodiment of the present invention;
FIG. 2-1 is an enlarged top view of the block shown in FIG. 1;
FIG. 2-2 is a schematic view of the narrow groove of FIG. 2 during vehicle travel;
FIG. 3 is a radial cross-sectional view of a multi-level tread;
fig. 4 is a pitch arrangement explanatory diagram.
Wherein: carcass 10, main tread layer 11, one secondary tread layer 12, one bottom tread layer 13, blocks 20, longitudinal grooves 31, lateral grooves 32, grooves 40.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
Referring to fig. 1-4, in the embodiment of the invention, the electric vehicle tire with low rolling resistance noise comprises a tire casing 10 and a crown reinforcement which form a tire main body, wherein the surface layer of the tire casing 10 comprises a main tread layer 11, a secondary tread layer 12 and a bottom tread layer 13; the main tread layer 11 is made of a first rubber compound having tan no less than 1.0 at 0 ℃ and a radial thickness set in the range of 0.1mm to 15mm, the sub-tread layer 12 is made of a second rubber compound having tan no greater than 0.1 at 60 ℃ and a radial thickness set in the range of 0.1mm to 15mm, and the bottom tread layer 13 is made of a third rubber compound having a very high viscosity for preventing separation of the sub-tread layer from the crown reinforcement and a radial thickness set in the range of 0.1mm to 15 mm;
it should be noted that: "tan" is a dynamic property well known to those skilled in the art to characterize a sizing formulation;
two beads in contact with the mounting rim for securing the tire to the rim;
the tire comprises two tire shoulders, wherein the tire shoulders extend outwards from the tire bead to the tire crown in the radial direction, when the tire shoulders are arranged at each pitch in the circumferential direction, a multi-level variable-pitch arrangement mode is adopted, the arrangement mode comprises two middle pattern block parts II and a tire shoulder part I positioned between the two middle pattern block parts, the tire shoulder part I adopts an arrangement mode that the total pitch number is not less than sixty and the pitch type is not less than three, and the middle pattern block parts II adopt an arrangement mode that the total pitch number is not less than forty and the pitch type is not less than three, so that the noise of the tire can be;
the tread, the tread is crossed the rubber layer that the whole axial width of crown reinforcement extends and covered circumferentially, and radially by the compound rubber compound of the multilayer, there are tread patterns on the tread, the said tread pattern is formed by a plurality of longitudinal grooves 31 and a plurality of horizontal grooves 32, longitudinal grooves 31 and horizontal grooves 32 cut the tire tread into a plurality of pattern blocks 20, distribute a plurality of narrow grooves 40 used for destroying the water film in order to strengthen the grip of the tire on the circumferential surface of pattern block 20, each groove 40 radial depth is not greater than 1mm, as shown in figure 2-2, when the vehicle is running on the wet slippery road surface, the said narrow groove 40 can destroy the water film fully in the preferred embodiment, thus strengthen the grip of the tire, keep the vehicle safe in running.
The Pass By Noise performance of the 205/55R16 standard product adopting the pattern of the invention is 65dB, reaches the 1 grade of European Union labels, and is 3dB lower than the common product. The rolling resistance coefficient test result is 6.5, reaches A grade of European Union labels, is reduced by 20 percent compared with common products, and the wet skid test result is 1.53.
Example 2
The difference from example 1 is: the total number of the tire shoulder parts I is sixty-four pitches, the types of the pitches are four, the total number of the pitches of the middle pattern block parts II is forty-five, and the types of the pitches are three.
The working principle of the invention is as follows: by providing a tread pattern consisting of a plurality of longitudinal grooves 31 and a plurality of transverse grooves 32; the tire tread is cut into a plurality of pattern blocks 20 by the longitudinal grooves 31 and the transverse grooves 32, a plurality of thin and narrow grooves 40 are distributed on the circumferential surface of each pattern block 20, and the narrow grooves 40 can fully damage a water film, so that the ground gripping force of the tire is enhanced, the running safety of a vehicle is kept, and the noise of the tire can be effectively reduced by adopting a multi-level variable pitch arrangement mode.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. 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. Any reference sign in a claim should not 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 (7)
1. A low rolling resistance noise motor vehicle tyre, characterized by comprising a carcass (10) and a crown reinforcement forming the main body of the tyre, the surface layer of the carcass (10) comprising a main tread layer (11), a secondary tread layer (12) and a bottom tread layer (13);
two beads in contact with the mounting rim for securing the tire to the rim;
the tire shoulder extends outwards from the tire bead to the tire crown in the radial direction, and when the tire shoulders are distributed at each pitch in the circumferential direction, a multi-level variable-pitch arrangement mode is adopted, wherein the arrangement mode comprises two middle pattern block parts II and a tire shoulder part I positioned between the two middle pattern block parts II;
the tread, the tread is crossed the rubber layer that the whole axial width of crown reinforcement extends and covers circumferentially, and radially by the compound sizing composition of multilayer, be equipped with the tread pattern on the tread, the tread pattern comprises a plurality of longitudinal grooves (31) and a plurality of horizontal grooves (32), and longitudinal grooves (31) and horizontal grooves (32) cut into a plurality of decorative pattern blocks (20) with the tire tread, distribute many thin narrow grooves (40) that are used for destroying the water film in order to strengthen the grip of tire on the block (20) circumferential surface.
2. The low rolling noise electric vehicle tire according to claim 1, wherein the radial depth of the grooves (40) is not greater than 1 mm.
3. The low rolling resistance noise electric vehicle tire according to claim 1, wherein the main tread layer (11) is made of a first rubber compound having tan no less than 1.0 at 0 ℃ and a radial thickness setting in the range of 0.1mm to 15 mm.
4. The low rolling resistance noise electric vehicle tire according to claim 1, wherein the secondary tread layer (12) is made of a second rubber compound having tan no greater than 0.1 at 60 ℃, and its radial thickness setting is in the range of 0.1mm to 15 mm.
5. Motor vehicle tyre with low rolling resistance noise according to claim 1, characterized in that the bottom tread layer (13) is made of a third rubber compound with very high viscosity, with a radial thickness setting in the range of 0.1mm to 15 mm.
6. The electric vehicle tire with low rolling resistance noise according to claim 1, wherein the tire shoulder portion I adopts an arrangement mode that the total pitch number is not less than sixty and the pitch type is not less than three, and the middle pattern block portion II adopts an arrangement mode that the total pitch number is not less than forty and the pitch type is not less than three.
7. The low rolling resistance noise electric vehicle tire according to claim 1, wherein the total number of the tire shoulder portion i is sixty-four pitches, the pitch types are four, and the total pitch number of the middle block portion ii is forty-five, and the pitch types are three.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010242006.5A CN111439070B (en) | 2020-03-31 | 2020-03-31 | Electric automobile tire of low resistance to rolling noise |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010242006.5A CN111439070B (en) | 2020-03-31 | 2020-03-31 | Electric automobile tire of low resistance to rolling noise |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111439070A true CN111439070A (en) | 2020-07-24 |
| CN111439070B CN111439070B (en) | 2024-05-14 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010242006.5A Active CN111439070B (en) | 2020-03-31 | 2020-03-31 | Electric automobile tire of low resistance to rolling noise |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111439070B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112895812A (en) * | 2021-03-24 | 2021-06-04 | 山东玲珑轮胎股份有限公司 | Winter tire with tire shoulder provided with flower |
| CN113427951A (en) * | 2021-07-26 | 2021-09-24 | 安徽佳通乘用子午线轮胎有限公司 | Radial tire with ultralow noise |
| WO2024098798A1 (en) * | 2022-11-09 | 2024-05-16 | 山东玲珑轮胎股份有限公司 | Automobile tire having low rolling resistance and low electrical resistance structure |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4815511A (en) * | 1986-03-18 | 1989-03-28 | The Goodyear Tire & Rubber Company | All-season high-performance radial-ply passenger pneumatic tire |
| US5309965A (en) * | 1991-08-20 | 1994-05-10 | General Tire, Inc. | Multiple pitch sequence optimization |
| CA2119658A1 (en) * | 1993-03-29 | 1994-09-30 | Thomas Alan Williams | Multiple tread geometries for reduced tire tread noise |
| JPH07132709A (en) * | 1993-11-10 | 1995-05-23 | Toyo Tire & Rubber Co Ltd | Low noise heavy load use pneumatic tire |
| JPH10157415A (en) * | 1996-12-02 | 1998-06-16 | Sumitomo Rubber Ind Ltd | Pneumatic tire |
| JP2000043507A (en) * | 1998-07-30 | 2000-02-15 | Toyo Tire & Rubber Co Ltd | Pneumatic tire |
| DE10128591A1 (en) * | 2000-06-14 | 2001-12-20 | Goodyear Tire & Rubber | Tread pattern for a pneumatic vehicle tire has a specified segment factor and lamellae density in the raised tread areas |
| US20140283966A1 (en) * | 2013-03-19 | 2014-09-25 | Sumitomo Rubber Industries, Ltd. | Pneumatic tire |
| JP2017061215A (en) * | 2015-09-24 | 2017-03-30 | 横浜ゴム株式会社 | Pneumatic tire |
| WO2018002487A1 (en) * | 2016-06-27 | 2018-01-04 | Compagnie Generale Des Etablissements Michelin | Tyre with a tread comprising reinforcing elements |
| CN212529202U (en) * | 2020-03-31 | 2021-02-12 | 山东玲珑轮胎股份有限公司 | Electric automobile tire with low rolling resistance noise |
-
2020
- 2020-03-31 CN CN202010242006.5A patent/CN111439070B/en active Active
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4815511A (en) * | 1986-03-18 | 1989-03-28 | The Goodyear Tire & Rubber Company | All-season high-performance radial-ply passenger pneumatic tire |
| US5309965A (en) * | 1991-08-20 | 1994-05-10 | General Tire, Inc. | Multiple pitch sequence optimization |
| CA2119658A1 (en) * | 1993-03-29 | 1994-09-30 | Thomas Alan Williams | Multiple tread geometries for reduced tire tread noise |
| JPH07132709A (en) * | 1993-11-10 | 1995-05-23 | Toyo Tire & Rubber Co Ltd | Low noise heavy load use pneumatic tire |
| JPH10157415A (en) * | 1996-12-02 | 1998-06-16 | Sumitomo Rubber Ind Ltd | Pneumatic tire |
| JP2000043507A (en) * | 1998-07-30 | 2000-02-15 | Toyo Tire & Rubber Co Ltd | Pneumatic tire |
| DE10128591A1 (en) * | 2000-06-14 | 2001-12-20 | Goodyear Tire & Rubber | Tread pattern for a pneumatic vehicle tire has a specified segment factor and lamellae density in the raised tread areas |
| US20140283966A1 (en) * | 2013-03-19 | 2014-09-25 | Sumitomo Rubber Industries, Ltd. | Pneumatic tire |
| JP2017061215A (en) * | 2015-09-24 | 2017-03-30 | 横浜ゴム株式会社 | Pneumatic tire |
| WO2018002487A1 (en) * | 2016-06-27 | 2018-01-04 | Compagnie Generale Des Etablissements Michelin | Tyre with a tread comprising reinforcing elements |
| CN212529202U (en) * | 2020-03-31 | 2021-02-12 | 山东玲珑轮胎股份有限公司 | Electric automobile tire with low rolling resistance noise |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112895812A (en) * | 2021-03-24 | 2021-06-04 | 山东玲珑轮胎股份有限公司 | Winter tire with tire shoulder provided with flower |
| CN112895812B (en) * | 2021-03-24 | 2024-05-14 | 山东玲珑轮胎股份有限公司 | Winter tyre with shoulder having flower |
| CN113427951A (en) * | 2021-07-26 | 2021-09-24 | 安徽佳通乘用子午线轮胎有限公司 | Radial tire with ultralow noise |
| WO2024098798A1 (en) * | 2022-11-09 | 2024-05-16 | 山东玲珑轮胎股份有限公司 | Automobile tire having low rolling resistance and low electrical resistance structure |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111439070B (en) | 2024-05-14 |
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