CN219838390U - High-performance tire pattern - Google Patents
High-performance tire pattern Download PDFInfo
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- CN219838390U CN219838390U CN202321230201.1U CN202321230201U CN219838390U CN 219838390 U CN219838390 U CN 219838390U CN 202321230201 U CN202321230201 U CN 202321230201U CN 219838390 U CN219838390 U CN 219838390U
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- tread
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- 238000005452 bending Methods 0.000 claims description 2
- 238000013461 design Methods 0.000 description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
Classifications
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- 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
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- Tires In General (AREA)
Abstract
The utility model provides a high-performance tire pattern, which belongs to the field of tire pattern structures, and comprises pattern longitudinal grooves extending along the circumferential direction of a tread, wherein the tread is divided into a plurality of pattern block groups by the pattern longitudinal grooves, each pattern block group comprises a first shoulder pattern group positioned at the inner shoulder, a plurality of first shoulder transverse grooves and second shoulder transverse grooves which are semi-closed structures are alternately arranged on the first shoulder pattern group along the circumferential direction of the tread, and the included angles of the first shoulder transverse grooves, the second shoulder transverse grooves and the tire movement direction are all 115 degrees; the first shoulder fine grooves and the second shoulder fine grooves are alternately arranged between the adjacent first shoulder transverse grooves and the second shoulder transverse grooves, wherein the first shoulder fine grooves are of semi-closed structures, the second shoulder fine grooves are of three-dimensional groove structures and are of V-shaped, and two ends of each V-shape are respectively communicated with the middle part of each first shoulder transverse groove and the adjacent pattern longitudinal grooves. The high-performance tire pattern has the advantages of safety, control stability, high wear resistance, wet land grabbing property and excellent drainage performance.
Description
Technical Field
The utility model belongs to the field of tire pattern structures, and particularly relates to a high-performance tire pattern.
Background
In recent years, the domestic tire industry develops rapidly, the competitiveness of the tire industry is changed from the competition of traditional products to the competition of technological innovation capability, the structure of the tire directly influences the service performance of the tire, the service performance of the tire plays a very important role in the drivability of vehicles, and the high-performance tire becomes the research and development hot spot direction of the current tire industry.
At present, the existing tire can only meet basic performance requirements, and has the problems of unsatisfactory drainage performance, poor grip strength, poor control stability, insufficient wet grip performance and the like during running, so that the driving safety is seriously influenced. In order to ensure the safety, the control stability, the high wear resistance, the wet land grasping property and the excellent drainage performance of an automobile in the running process, and enable the tire to better cope with complex road conditions, a high-performance tire tread structure with good comprehensive performance is necessary to be designed. Compared with a common tire, the tread of the tire has wider pattern ground contact surface, and the pattern has stronger drainage performance and grip performance.
Disclosure of Invention
The details of one or more embodiments of the utility model are set forth in the accompanying drawings and the description below to provide a more thorough understanding of the other features, objects, and advantages of the utility model.
The utility model provides a high-performance tire pattern, which is an asymmetric pattern structure, and solves the problems that the existing tire can only meet basic performance requirements, the drainage performance is not ideal during running, the grip is not strong, the control stability is poor, the wet grip is insufficient, the driving safety is seriously affected, and the tire pattern has the safety, the control stability, the high wear resistance, the wet grip and the excellent drainage performance.
The utility model discloses a high-performance tire pattern, which comprises pattern longitudinal grooves extending along the circumferential direction of a tire tread, wherein the pattern longitudinal grooves divide the tire tread into a plurality of pattern block groups, the pattern block groups comprise first shoulder pattern groups positioned at inner shoulder, a plurality of first shoulder transverse grooves and second shoulder transverse grooves which are semi-closed structures are alternately arranged on the first shoulder pattern groups along the circumferential direction of the tire tread, and the included angles between the first shoulder transverse grooves, the second shoulder transverse grooves and the tire movement direction are 115 degrees; the first shoulder fine grooves and the second shoulder fine grooves are alternately arranged between the adjacent first shoulder transverse grooves and the second shoulder transverse grooves, wherein the first shoulder fine grooves are of semi-closed structures, the second shoulder fine grooves are of three-dimensional groove structures and are of V-shaped, and two ends of each V-shape are respectively communicated with the middle part of each second shoulder transverse groove and the adjacent pattern longitudinal grooves.
In some embodiments, the block set further includes a second shoulder pattern set located at the outer shoulder, and third shoulder lateral grooves and fourth shoulder lateral grooves are alternately disposed on the second shoulder pattern set, wherein the third shoulder lateral grooves are centrally symmetrical with the first shoulder lateral grooves, and the fourth shoulder lateral grooves are centrally symmetrical with the second shoulder lateral grooves.
In some embodiments, third shoulder fine grooves and fourth shoulder fine grooves are alternately arranged between adjacent third shoulder transverse grooves and fourth shoulder transverse grooves, wherein the third shoulder fine grooves are centrosymmetric with the second shoulder fine grooves, and the fourth shoulder fine grooves are centrosymmetric with the first shoulder fine grooves.
In some embodiments, the closed end of the third shoulder lateral groove is provided with a first auxiliary lateral groove, and one end of the first auxiliary lateral groove away from the third shoulder lateral groove is communicated with an adjacent pattern longitudinal groove; the closed end of the fourth shoulder transverse groove is provided with a second auxiliary transverse groove, and one end of the second auxiliary transverse groove, which is far away from the fourth shoulder transverse groove, is communicated with the adjacent pattern longitudinal groove.
In some embodiments, the block set further includes a first middle pattern set located in the middle of the tread, the first middle pattern set having a plurality of inclined first middle lateral grooves disposed thereon, the first middle lateral grooves having a width that narrows from the tread edge to the tread centerline, and the first middle lateral grooves having a radius of curvature of 65-75mm.
In some of these embodiments, the first intermediate tread group is further provided with a first intermediate sipe extending in the tread circumferential direction, the first intermediate sipe communicating with the narrower end of the first intermediate sipe.
In some embodiments, the block set further includes a second middle pattern set located in the middle of the tread, and a plurality of second middle transverse grooves are disposed on the second middle pattern set along the tread circumference, the second middle transverse grooves are in an i-shaped structure, and adjacent second middle transverse grooves are communicated through second middle fine grooves.
In some of these embodiments, the second middle transverse groove has two ends of the i-shaped bottom edge respectively connected to the adjacent groove, and one end of the i-shaped top edge near the tread center line is a closed structure, and the other end is connected to the adjacent groove.
In some of these embodiments, one end of the second middle fine groove is communicated with the closed end of the I-shaped top edge of the second middle transverse groove, and an included angle formed by the second middle fine groove and the I-shaped top edge of the second middle transverse groove is 35 ° -65 °; the other end of the second middle fine groove is connected with the middle part of the H-shaped bottom edge of the second middle transverse groove, and an included angle formed by the second middle fine groove and the H-shaped bottom edge of the second middle transverse groove is 15-35 degrees.
In some of these embodiments, the tire tread block area is 60% of the tire tread area.
Compared with the prior art, the utility model has the beneficial effects that:
(1) The grounding area of the first shoulder pattern group positioned on the inner shoulder is larger than that of the second shoulder pattern group positioned on the outer shoulder, so that the grip and the handling performance of the tire are greatly improved; the large shoulder block structure improves the rigidity of the shoulder, reduces the pattern deformation during turning and improves the steering response; the transverse grooves of the inner shoulder pattern groups and the outer shoulder pattern groups are centrosymmetric, and the transverse grooves of the outer shoulder pattern groups are also provided with auxiliary transverse grooves, so that good drainage performance is provided on the basis of keeping excellent ground grabbing performance of the tire; the arrangement of the shoulder fine grooves is beneficial to improving the drainage performance, effectively preventing the water film phenomenon and ensuring the driving safety.
(2) The first middle pattern group is provided with the first middle fine grooves and the first middle transverse grooves, and is divided into two parts of independent middle pattern ribs and a plurality of independent middle pattern blocks, wherein the independent middle pattern ribs improve the straight running stability of the tire; the first middle fine groove is matched with the first middle transverse groove, so that the water film can be effectively cut off when the tire runs on a wet road surface, and the wet skid resistance of the tire is greatly improved.
(3) The second middle pattern group is provided with the plurality of H-shaped second middle transverse grooves, the adjacent second middle transverse grooves are communicated through the second middle fine grooves, and the second middle fine grooves and the H-shaped two sides of the second middle transverse grooves form a certain included angle, so that the tread friction and the tyre pattern control performance can be improved.
(4) The tread pattern block area of the tire is 60% of the running surface area of the tire, and the tire tread pattern block area is matched with the staggered structure of a plurality of transverse pattern grooves and a plurality of longitudinal pattern grooves of the tread and the stable large pattern block design, so that the tire tread pattern block can provide strong ground grabbing performance and wear resistance, greatly reduce the damage to a soft foundation road surface and ensure high passing performance when running on a non-paved road surface.
Drawings
The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model and do not constitute a limitation on the utility model. In the drawings:
FIG. 1 is a schematic view of a high performance tire pattern provided in an embodiment of the present utility model;
in the accompanying drawings: 1. the first shoulder pattern group, 2, the first side longitudinal groove, 3, the first middle pattern group, 4, the middle longitudinal groove, 5, the second middle pattern group, 6, the second side longitudinal groove, 7, the second shoulder pattern group, 8, the first shoulder transverse groove, 9, the second shoulder transverse groove, 10, the first shoulder thin groove, 11, the second shoulder thin groove, 12, the first middle transverse groove, 13, the first middle thin groove, 14, the second middle transverse groove, 15, the second middle thin groove, 16, the first auxiliary transverse groove, 17, the third shoulder transverse groove, 18, the second auxiliary transverse groove, 19, the fourth shoulder transverse groove, 20, the third shoulder thin groove, 21, the fourth shoulder thin groove.
Detailed Description
The present utility model will be described and illustrated with reference to the accompanying drawings and examples in order to make the objects, technical solutions and advantages of the present utility model more apparent.
The terms "a," "an," "the," and similar referents in the context of the utility model are not to be construed as limiting the quantity, but rather as singular or plural. The terms "comprising," "including," "having," and any variations thereof, are intended to cover a non-exclusive inclusion. The term "plurality" as used herein means two or more. The terms "first," "second," "third," and the like, as used herein, are merely distinguishing between similar objects and not representing a particular ordering of objects.
The embodiment of the utility model provides a high-performance tire pattern, which adopts an asymmetric pattern design, improves the grip and control stability of the tire, and ensures that the tight turning and braking are more accurate. Fig. 1 is a schematic structural view of a high performance tire pattern according to an embodiment of the present utility model. Referring to fig. 1, the high performance tire pattern includes: and the tread is divided into a plurality of pattern block groups by the pattern grooves, wherein the pattern block groups comprise a first shoulder pattern group 1 positioned at an inner shoulder, a second shoulder pattern group 7 positioned at an outer shoulder, and a first middle pattern group 3 and a second middle pattern group 5 positioned at the middle of the tread.
The first shoulder pattern group 1 is designed as a semi-closed whole block, and compared with the second shoulder pattern group 7, the grounding area of the inner side of the tire is improved by 15%, so that the grip and the handling performance of the tire are greatly improved; and the closed tire shoulder design effectively reduces the pumping air formed by the shoulder air flow, and reduces the tire noise when the vehicle runs. The first shoulder pattern group 1 adopts a large-block shoulder structure, so that the rigidity of the shoulder is improved, the pattern deformation during turning is reduced, and the steering response is improved. A plurality of shoulder transverse grooves are formed in the first shoulder pattern group 1 along the circumferential direction of the tread, one ends of the shoulder transverse grooves extend to the edge of the tread, and the other ends of the shoulder transverse grooves are arranged in a closed mode. The shoulder transverse grooves comprise first shoulder transverse grooves 8 and second shoulder transverse grooves 9 which are alternately arranged, the first shoulder transverse grooves 8 and the second shoulder transverse grooves 9 are of inclined V-shaped structures, and inclined included angles between the first shoulder transverse grooves 8 and the second shoulder transverse grooves 9 and the movement direction of the tire are 115 degrees. Wherein, the one end that is close to the tread edge of first shoulder lateral groove 8 sets up the first supplementary longitudinal groove of reverse V font, and the top of first supplementary longitudinal groove reverse V font is linked together with first shoulder lateral groove 8, and the both sides of first supplementary longitudinal groove reverse V font all are linked together with first shoulder lateral groove 8. The end of the second shoulder transverse groove 9 near the tread edge is provided with a second auxiliary longitudinal groove which comprises grooves with different lengths. A first shoulder thin groove 10 and a second shoulder thin groove 11 are alternately arranged between the adjacent first shoulder transverse groove 8 and the second shoulder transverse groove 9, wherein one end of the first shoulder thin groove 10 close to the tread edge is of a closed structure, and the other end is communicated with the adjacent pattern longitudinal groove; the second shoulder fine groove 11 is of a three-dimensional groove structure and is in a V shape, one end of the V shape is communicated with the middle part of the first shoulder transverse groove 8, and the other end of the V shape is communicated with the adjacent pattern longitudinal groove; the arrangement of the second shoulder fine grooves 11 improves the drainage performance of the tire pattern, effectively prevents the water film phenomenon, ensures the safety of tire running, and also has good heat dissipation effect.
The second shoulder pattern group 7 of the high-performance tire pattern is provided with a third shoulder transverse groove 17 and a fourth shoulder transverse groove 19 at intervals along the circumferential direction of the tire surface, wherein the third shoulder transverse groove 17 is in central symmetry with the first shoulder transverse groove 8, and the fourth shoulder transverse groove 19 is in central symmetry with the second shoulder transverse groove 9. Third shoulder fine grooves 20 and fourth shoulder fine grooves 21 are alternately arranged between the adjacent third shoulder transverse grooves 17 and fourth shoulder transverse grooves 19, wherein the third shoulder fine grooves 20 are centrosymmetric with the second shoulder fine grooves 11, and the fourth shoulder fine grooves 21 are centrosymmetric with the first shoulder fine grooves 10. In addition, in order to further improve the grip performance and drainage performance of the tire, a first auxiliary lateral groove 16 is provided at the closed end of the third shoulder lateral groove 17, and one end of the first auxiliary lateral groove 16 away from the third shoulder lateral groove 17 communicates with an adjacent pattern longitudinal groove; the closed end of the fourth shoulder transverse groove 19 is provided with a second auxiliary transverse groove 18, and one end of the second auxiliary transverse groove 18 far away from the fourth shoulder transverse groove 19 is communicated with an adjacent pattern longitudinal groove.
The first middle pattern group 3 of the high-performance tire pattern is provided with a first middle fine groove 13 and a plurality of inclined first middle transverse grooves 12 which extend along the circumferential direction of the tire tread, one end of each first middle transverse groove 12 is communicated with an adjacent pattern longitudinal groove, and the other end of each first middle transverse groove is communicated with each first middle fine groove 13; the first middle transverse groove 12 and the first middle fine groove 13 divide the first middle pattern group 3 into two parts, wherein the part close to the inner tire shoulder comprises a plurality of independent middle pattern blocks, the part close to the tread central line is an independent middle pattern rib, and the arrangement of the middle pattern ribs improves the straight running stability of the tire. The width of the first middle transverse groove 12 gradually narrows from the tread edge to the tread central line and is in a certain radian, the radius of the bending radian of the first middle transverse groove 12 is 65-75mm, and the combined structure of the first middle transverse groove 12 and the first middle fine groove 13 enables the tire to effectively cut off a water film when the tire runs on a wet road surface, so that the wet skid resistance of the tire is greatly improved.
The second middle pattern group 5 of the high-performance tire pattern is provided with a plurality of second middle transverse grooves 14 along the circumferential direction of the tire tread, the second middle transverse grooves 14 are of an I-shaped structure, two ends of the I-shaped bottom edge are respectively communicated with adjacent pattern longitudinal grooves, one end of the I-shaped top edge, which is close to the outer tire shoulder, is communicated with the adjacent pattern longitudinal grooves, and the other end of the I-shaped top edge is of a closed structure. The adjacent second middle transverse grooves 14 are communicated through a second middle fine groove 15, wherein one end of the second middle fine groove 15 is communicated with the closed end of the I-shaped top edge of the second middle transverse groove 14, and an included angle formed by the second middle fine groove 15 and the I-shaped top edge of the second middle transverse groove 14 is 35-65 degrees; the other end of the second middle fine groove 15 is connected with the middle part of the H-shaped bottom edge of the second middle transverse groove 14, and an included angle formed by the second middle fine groove 15 and the H-shaped bottom edge of the second middle transverse groove 14 is 15-35 degrees. Through the structural design, the friction performance of the tire tread can be improved, and the control performance of tire patterns is further improved.
The pattern longitudinal groove of the high-performance tire pattern comprises a middle longitudinal groove 4 positioned on the center line of the tire tread, a first side longitudinal groove 2 positioned on one side of the middle longitudinal groove 4 and a second side longitudinal groove 6 positioned on the other side of the middle longitudinal groove 4, and the drainage performance of the tire is greatly improved through the arrangement of three wide longitudinal grooves.
The area of the pattern block of the high-performance tire pattern is 60% of the area of the tire running surface, and the high-pass performance of the tire in running on a non-paved road surface is ensured by arranging a plurality of staggered structures of the transverse pattern grooves and the longitudinal pattern grooves and the stable large pattern block design, so that the high-performance tire pattern can provide strong ground grabbing performance and wear resistance, greatly reduce the damage of the tire to the soft foundation road surface and reduce the wear resistance of the tire. And through the design of multi-frequency combined pattern block optimal arrangement, pattern block noise resonance phenomenon is effectively reduced, and product noise is reduced.
The above examples merely represent a few embodiments of the present utility model, and it should be noted that it is possible for a person skilled in the art to make several variations and modifications without departing from the scope of the present utility model.
Claims (10)
1. A high performance tire tread characterized by: the tire tread comprises a pattern longitudinal groove extending along the circumferential direction of the tread, wherein the pattern longitudinal groove divides the tread into a plurality of pattern block groups, the pattern block groups comprise a first shoulder pattern group positioned at the inner shoulder, a plurality of first shoulder transverse grooves and second shoulder transverse grooves which are semi-closed structures are alternately arranged on the first shoulder pattern group along the circumferential direction of the tread, and the included angles between the first shoulder transverse grooves, the second shoulder transverse grooves and the tire movement direction are 115 degrees; the first shoulder fine grooves and the second shoulder fine grooves are alternately arranged between the adjacent first shoulder transverse grooves and the second shoulder transverse grooves, wherein the first shoulder fine grooves are of semi-closed structures, the second shoulder fine grooves are of three-dimensional groove structures and are of V-shaped, and two ends of each V-shape are respectively communicated with the middle part of each first shoulder transverse groove and the adjacent pattern longitudinal grooves.
2. The high performance tire tread of claim 1 wherein: the pattern block group further comprises a second shoulder pattern group positioned on the outer shoulder, and a third shoulder transverse groove and a fourth shoulder transverse groove are alternately arranged on the second shoulder pattern group, wherein the third shoulder transverse groove is in central symmetry with the first shoulder transverse groove, and the fourth shoulder transverse groove is in central symmetry with the second shoulder transverse groove.
3. The high performance tire tread of claim 2 wherein: and a third shoulder thin groove and a fourth shoulder thin groove are alternately arranged between the adjacent third shoulder transverse groove and fourth shoulder transverse groove, wherein the third shoulder thin groove and the second shoulder thin groove are in central symmetry, and the fourth shoulder thin groove and the first shoulder thin groove are in central symmetry.
4. The high performance tire tread of claim 2 wherein: the closed end of the third shoulder transverse groove is provided with a first auxiliary transverse groove, and one end of the first auxiliary transverse groove, which is far away from the third shoulder transverse groove, is communicated with the adjacent pattern longitudinal groove; the closed end of the fourth shoulder transverse groove is provided with a second auxiliary transverse groove, and one end of the second auxiliary transverse groove, which is far away from the fourth shoulder transverse groove, is communicated with the adjacent pattern longitudinal groove.
5. The high performance tire tread of claim 1 wherein: the pattern block group also comprises a first middle pattern group positioned in the middle of the tread, a plurality of inclined first middle transverse grooves are arranged on the first middle pattern group, the width of each first middle transverse groove gradually narrows from the edge of the tread to the central line of the tread, and the radius of the bending radian of each first middle transverse groove is 65-75mm.
6. The high performance tire tread of claim 5, wherein: the first middle pattern group is further provided with a first middle fine groove extending along the circumferential direction of the tread, and the first middle fine groove is communicated with one narrower end of the first middle transverse groove.
7. The high performance tire tread of claim 1 wherein: the pattern block group also comprises a second middle pattern group positioned in the middle of the tread, a plurality of second middle transverse grooves are arranged on the second middle pattern group along the circumferential direction of the tread, the second middle transverse grooves are of an I-shaped structure, and the adjacent second middle transverse grooves are communicated through second middle fine grooves.
8. The high performance tire tread of claim 7, wherein: the two ends of the I-shaped bottom edge of the second middle transverse groove are respectively communicated with the adjacent pattern longitudinal grooves, one end of the I-shaped top edge, which is close to the tread center line, is of a closed structure, and the other end of the I-shaped top edge is communicated with the adjacent pattern longitudinal grooves.
9. The high performance tire tread of claim 7, wherein: one end of the second middle fine groove is communicated with the closed end of the I-shaped top edge of the second middle transverse groove, and an included angle formed by the second middle fine groove and the I-shaped top edge of the second middle transverse groove is 35-65 degrees; the other end of the second middle fine groove is connected with the middle part of the H-shaped bottom edge of the second middle transverse groove, and an included angle formed by the second middle fine groove and the H-shaped bottom edge of the second middle transverse groove is 15-35 degrees.
10. The high performance tire tread of claim 1 wherein: the tire tread block area is 60% of the tire running surface area.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321230201.1U CN219838390U (en) | 2023-05-18 | 2023-05-18 | High-performance tire pattern |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321230201.1U CN219838390U (en) | 2023-05-18 | 2023-05-18 | High-performance tire pattern |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219838390U true CN219838390U (en) | 2023-10-17 |
Family
ID=88298420
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321230201.1U Active CN219838390U (en) | 2023-05-18 | 2023-05-18 | High-performance tire pattern |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219838390U (en) |
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2023
- 2023-05-18 CN CN202321230201.1U patent/CN219838390U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20240415 Address after: 266400 66 Gang Xing Road, POI Town, Huangdao District, Qingdao, Shandong Patentee after: QINGDAO DOUBLESTAR TIRE INDUSTRIAL Co.,Ltd. Country or region after: China Address before: No.12 Guangrui Road, Guangrao Economic Development Zone, Guangrao County, Dongying City, Shandong Province Patentee before: Guangrao Jixing Tire Co.,Ltd. Country or region before: China |
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| TR01 | Transfer of patent right |