Stone clamping prevention asymmetric pattern tread and new energy vehicle tire
By using anti-stone asymmetric pattern tread on the tires, combined with wavy convex strips and diamond plaid design, the problem of insufficient performance of existing tires in complex driving scenarios is solved, achieving better stone protection and multi-scene adaptability.
Patent Information
- Application Number
- CN202421962233.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-13
- Publication Date
- 2025-06-06
- Estimated Expiration
- 2034-08-13
AI Technical Summary
When facing complex driving scenarios, existing anti-stone tires are difficult to meet the needs of urban traffic and non-paved roads at the same time, and the structure is complex or performance is insufficient.
An anti-scratched stone asymmetric pattern tread is used, and wavy convex strips and intersecting linear cutters are provided through longitudinal blocks and longitudinal grooves alternately distributed along the axial direction to form a diamond lattice to improve deformation ability.
Effectively prevent stone clamping to cause damage to tires, improve the performance of paved and non-paved roads, enhance the tire's stone discharge and drainage capabilities, and reduce noise.
Smart Images
Figure CN222946476U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to an anti-stone pinching asymmetric pattern tread and a tire for new energy vehicles, belonging to the technical field of tires. Background Art
[0002] With the booming development of the new energy vehicle market, the demand for supporting tire supply is also expanding.
[0003] Compared with fuel vehicles, traditional new energy vehicles have shorter range and imperfect charging facilities, which leads to range anxiety, so new energy vehicles are mostly used on urban asphalt roads. Due to the continuous development of new energy vehicle technology and the continuous improvement of charging facilities, the range limitations of new energy vehicles have been broken, which also means that the application scenarios of new energy vehicles are no longer limited to urban commuting and short-distance transportation. The application scenarios have been further expanded, and there are needs for use in tourism, long-distance transportation, and other non-paved road driving.
[0004] Different from driving on paved roads, unpaved roads often have sand, gravel and other road conditions, especially gravel, which can cause damage to vehicle tires. This requires the tires of new energy vehicles to have anti-stone pinching, anti-puncture or stone removal performance. Existing anti-stone pinching tires usually use a straight groove bottom to add a stone removal platform, a stepped groove or a variable angle design, or use a complex structure to clean up the gravel. The former is prone to entrainment of smaller sand and gravel and has a complex structure, while the latter is not conducive to meeting the multiple needs of new energy vehicle users in urban transportation and driving on unpaved roads. Utility Model Content
[0005] In order to solve the above problems, the present application proposes an anti-stone pinching asymmetric pattern tread and a new energy vehicle tire, so that when new energy vehicles face more complex driving application scenarios, they can not only prevent the damage to the tires caused by stones pinching when driving on unpaved roads, but also provide superior performance on paved and unpaved roads.
[0006] According to one aspect of the present application, there is provided an anti-stone pinching asymmetric pattern tread, the asymmetric pattern tread comprising: longitudinal pattern blocks and longitudinal grooves alternately distributed along the axial direction;
[0007] The longitudinal pattern blocks include an outer shoulder pattern block, a first longitudinal pattern block, a central pattern block, a second longitudinal pattern block and an inner shoulder pattern block in sequence, and the longitudinal pattern blocks are all provided with transverse grooves;
[0008] The longitudinal grooves include a first longitudinal groove, a second longitudinal groove, a third longitudinal groove and a fourth longitudinal groove; the bottoms of the longitudinal grooves are all provided with wavy convex strips;
[0009] The first longitudinal groove is located between the outer shoulder block and the first longitudinal block, the second longitudinal groove is located between the first longitudinal block and the central block, the third longitudinal transverse groove is located between the central block and the second longitudinal block, and the fourth longitudinal groove is located between the second longitudinal block and the inner shoulder block;
[0010] The first longitudinal pattern block, the central pattern block and the second longitudinal pattern block are all provided with first slits and second slits, the first slits and the second slits are intersecting straight line slits, and the first slits and the second slits form a diamond checkered pattern on the first longitudinal pattern block, the central pattern block and the second longitudinal pattern block.
[0011] Optionally, the height of the wavy convex strip is H1, the maximum depth of the longitudinal groove is H2, and the relationship between H1 and H2 is
[0012] Optionally, the cross-section of the wavy convex strip is spike-shaped, and the connection between the wavy convex strip and the groove bottom is an arc connection.
[0013] Optionally, the maximum depth of the transverse groove is H3, and the relationship between H3 and H2 is H3 <H2。
[0014] Optionally, the first longitudinal pattern block is provided with a first transverse groove, and the first transverse groove is a streamlined groove penetrating on both sides.
[0015] Optionally, the central pattern block is provided with a second transverse groove and a third transverse groove, and the second transverse groove and the third transverse groove are alternately arranged on the central pattern block and are both single-sided closed structures.
[0016] Optionally, a fourth transverse groove is provided on the second longitudinal pattern block, and the fourth transverse groove is an arc-shaped groove which is closed on the outside.
[0017] Optionally, a fifth through transverse groove is provided on the outer shoulder pattern block, and an outer closed third sipe is provided between adjacent grooves. A fourth circumferential sipe is also provided on the outer shoulder pattern block away from the shoulder end.
[0018] Optionally, the inner shoulder pattern block is provided with a sixth transverse groove which is closed on the outside, and a through fifth sipe is provided between adjacent grooves.
[0019] According to another aspect of the present application, a tire for new energy vehicles is provided, comprising the above-mentioned anti-stone pinch asymmetric pattern tread.
[0020] The beneficial effects of this application include but are not limited to:
[0021] 1. According to the anti-stone pinching asymmetric tread provided by the present application, by providing wavy convex strips, on the one hand, sand and stones that enter the groove bottom during driving can be effectively ejected to prevent the tire groove bottom from being scratched or punctured by sand and stones, especially sharp stones; on the other hand, the convex strips are provided in a wavy shape, and the sand and stones of different particle sizes can be prevented from being pinched by the change in the distance between the convex strips and the two walls of the longitudinal groove;
[0022] By setting the intersecting first knife grooves and the second knife grooves, a diamond pattern is formed on the first longitudinal pattern block, the second longitudinal pattern block and the central pattern block, so that the longitudinal pattern blocks have stronger deformation ability, and provide elastic margin when stones are embedded in the grooves, which is beneficial to the discharge of the stones; at the same time, because both the diamond pattern and the wave convex strips can provide a large deformation amount, when the car is driving on a gravel road, the stones entering the longitudinal grooves are more difficult to be clamped due to the combined action of the two structures.
[0023] 2. According to the anti-stone pinching asymmetric pattern tread provided by the present application, by setting the wavy convex strips to be in the shape of spikes, the wavy convex strips can not only provide sufficient protection for the groove bottom in terms of thickness, but also have greater flexibility and deformation, which is conducive to the discharge of stones; the wavy convex strips are connected to the groove bottom in an arc shape to prevent small-sized sand and stones from being embedded and damaging the tire groove bottom.
[0024] 3. According to the anti-stone pinching asymmetric pattern tread provided by the present application, by setting the proportional relationship between the height of the wavy ribs and the maximum depth of the longitudinal grooves, the wavy ribs will not be worn out as the tire tread is worn during driving due to their excessive height, thereby losing the shape characteristic of providing a high deformation amount; nor will they be difficult to protect the groove bottom due to their too low height, thereby ensuring that the wavy ribs can effectively play a role while preventing damage to the structural characteristics of the wavy ribs due to wear of the tread.
[0025] 4. According to the anti-stone pinching asymmetric pattern tread provided in the present application, a multi-pitch design is performed on the tread to improve the drainage performance and wet grip, and effectively reduce the noise during driving; the combination of grooves and sipes on the shoulder pattern blocks improves the steering control performance and drainage and anti-skid ability of the tire, and can be used as an ultra-high performance tire tread with anti-stone pinching function. BRIEF DESCRIPTION OF THE DRAWINGS
[0026] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:
[0027] Figure 1 This is an overall schematic diagram of a tire with the anti-stone pinching asymmetric pattern tread according to an embodiment of the present application;
[0028] Figure 2 This is a schematic diagram of the tread pattern structure involved in the embodiment of the present application;
[0029] Figure 3 This is a schematic diagram of an axial cross-section of a tread involved in an embodiment of the present application;
[0030] Figure 4 For this application Figure 3 A schematic diagram of the enlarged structure in the middle.
[0031] Reference numerals:
[0032] 1 tire; 2 outer shoulder pattern block; 3 first longitudinal pattern block; 4 central pattern block; 5 second longitudinal pattern block; 6 inner shoulder pattern block; 7 first longitudinal groove; 8 second longitudinal groove; 9 third longitudinal groove; 10 fourth longitudinal groove; 11 wavy ridge; 12 first sipe; 13 second sipe; 14 first transverse groove; 15 second transverse groove; 16 third transverse groove; 17 fourth transverse groove; 18 fifth transverse groove; 19 third sipe; 20 fourth sipe; 21 sixth transverse groove; 22 fifth sipe. DETAILED DESCRIPTION
[0033] In order to more clearly illustrate the overall concept of the present application, a detailed description is given below in an illustrative manner in conjunction with the accompanying drawings.
[0034] In order to more clearly understand the above-mentioned purposes, features and advantages of the present application, the present application is further described in detail below in conjunction with the accompanying drawings and specific implementation methods. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.
[0035] In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application may also be implemented in other ways different from those described herein. Therefore, the scope of protection of the present application is not limited to the specific embodiments disclosed below.
[0036] In addition, in the description of the present application, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.
[0037] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.
[0038] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or a communication; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.
[0039] In the present application, unless otherwise clearly specified and limited, a first feature "above" or "below" a second feature may be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in an appropriate manner in any one or more embodiments or examples.
[0040] refer to Figure 1 The embodiment of the present application discloses a tire for new energy vehicles, including an anti-stone pinching asymmetric pattern tread.
[0041] refer to Figure 2-Figure 3 The embodiment of the present application discloses an anti-stone pinching asymmetric pattern tread, comprising: longitudinal pattern blocks and longitudinal grooves alternately distributed along the axial direction; the longitudinal pattern blocks sequentially comprise an outer shoulder pattern block 2, a first longitudinal pattern block 3, a central pattern block 4, a second longitudinal pattern block 5 and an inner shoulder pattern block 6, and transverse grooves are provided on the longitudinal pattern blocks;
[0042] The longitudinal grooves include a first longitudinal groove 7, a second longitudinal groove 8, a third longitudinal groove 9, and a fourth longitudinal groove 10; corrugated ridges 11 are provided at the bottoms of the longitudinal grooves. On the one hand, the corrugated ridges 11 can effectively eject the sand and stones that enter the groove bottom during driving, preventing the tire groove bottom from being scratched or punctured by sand and stones, especially sharp stones. On the other hand, the ridges are set in a wave shape, and the varying distance between the ridges and the grooves can prevent different particle sizes of sand and stones from being夹入 (it seems there is a wrong word here, maybe "夹入" should be "夹入", and the correct expression might be "夹入" or "夹入"), and at the same time, the corrugated ridges can laterally truncate the noise airflow generated in the longitudinal grooves, reducing the noise generated during vehicle driving.
[0043] The first longitudinal groove 7 is located between the outer shoulder tread block 2 and the first longitudinal tread block 3, the second longitudinal groove 8 is located between the first longitudinal tread block 3 and the central tread block 4, the third longitudinal groove is located between the central tread block 4 and the second longitudinal tread block 5, and the fourth longitudinal groove 10 is located between the second longitudinal tread block 5 and the inner shoulder tread block 6;
[0044] First knife grooves 12 and second knife grooves 13 are provided on the first longitudinal tread block 3, the central tread block 4, and the second longitudinal tread block 5. The first knife grooves 12 and the second knife grooves 13 are intersecting straight knife grooves, and the first knife grooves 12 and the second knife grooves 13 form a diamond grid pattern on the first longitudinal tread block 3, the central tread block 4, and the second longitudinal tread block 5, making the above longitudinal tread blocks have higher flexibility and providing more elastic allowance when stones are embedded in the grooves, thus being more conducive to the discharge of stones.
[0045] Reference Figure 4 , the height of the corrugated ridge 11 is H1, the maximum depth of the longitudinal groove is H2, and the relationship between H1 and H2 is If the height of the corrugated ridge 11 is too low, it is difficult to play the role of discharging sand and stones, and if it is too high, it is easily worn and affects the stone discharging effect; specifically, the maximum depth H2 of the longitudinal groove is 5.5 - 8.5 mm, preferably 7 mm, and the height H1 of the corrugated ridge 11 is 5.8 mm.
[0046] Specifically, the cross-section of the corrugated ridge 11 is spiky, which can not only provide sufficient protection for the groove bottom in terms of thickness, but also has greater flexibility and deformation, being conducive to the discharge of stones; the connection between the corrugated ridge 11 and the groove bottom is arc-shaped, avoiding small particle size sand and stones from being embedded and damaging the connection between the corrugated ridge 11 and the groove bottom of the tire groove bottom.
[0047] Specifically, the maximum depth of the transverse groove is H3, and the relationship between H3 and H2 is H3 < H2. Specifically, the maximum depth H2 of the longitudinal groove is preferably 7 mm, and the maximum depth H3 of the transverse groove is preferably 5.5 mm.
[0048] As an implementation mode, the first longitudinal pattern block 3 is provided with a first transverse groove 14. The first transverse groove 14 is a streamlined groove penetrating on both sides, thereby ensuring the drainage performance of the tire when driving in rainy days.
[0049] As an embodiment, the central pattern block 4 is provided with a second transverse groove 15 and a third transverse groove 16, which are alternately arranged on the central pattern block 4 and are both single-sided closed structures. The arrangement of the second transverse groove 15 and the third transverse groove 16 makes the groove distribution on the central pattern block 4 and the tread force more uniform, so that the tread has better wear resistance while effectively dissipating heat.
[0050] As an implementation mode, a fourth transverse groove 17 is provided on the second longitudinal pattern block 5. The fourth transverse groove 17 is an arc-shaped groove closed on the outside, has low penetration, and has better anti-wear performance, grip and handling performance.
[0051] As an implementation mode, a fifth lateral groove 18 is provided on the outer shoulder pattern block 2, which has good drainage performance. At the same time, the fifth lateral groove 18 divides the outer shoulder pattern block 2 into large pattern blocks, which can provide good grip and control performance for driving; an outer closed third sipe 19 is provided between adjacent grooves, and a circumferential fourth sipe 20 is also provided on the outer shoulder pattern block 2 away from the shoulder end; the circumferential sipe cooperates with the fifth lateral groove 18 to further improve the water-breaking and drainage performance of the tire, making new energy vehicles more adaptable in heavy rain or wading areas.
[0052] As an implementation mode, a sixth transverse groove 21 closed on the outside is provided on the inner shoulder tread block 6, and a through fifth sipe 22 is provided between adjacent grooves; the multi-pitch pattern design reduces the impact generated when the tire contacts the ground and improves riding comfort.
[0053] Each embodiment in this specification is described in a progressive manner, and the same or similar parts between the embodiments can be referred to each other, and each embodiment focuses on the differences from other embodiments. In particular, for the system embodiment, since it is basically similar to the method embodiment, the description is relatively simple, and the relevant parts can be referred to the partial description of the method embodiment.
[0054] The above is only an embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various changes and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the scope of the claims of the present application.
Claims
1. An anti-stone asymmetric pattern tread, characterized in that: include: Longitudinal blocks and longitudinal grooves are distributed alternately along the axial direction; The longitudinal pattern blocks include an outer shoulder pattern block, a first longitudinal pattern block, a central pattern block, a second longitudinal pattern block and an inner shoulder pattern block in sequence, and the longitudinal pattern blocks are all provided with transverse grooves; The longitudinal grooves include a first longitudinal groove, a second longitudinal groove, a third longitudinal groove and a fourth longitudinal groove; the bottoms of the longitudinal grooves are all provided with wavy convex strips; The first longitudinal groove is located between the outer shoulder block and the first longitudinal block, the second longitudinal groove is located between the first longitudinal block and the central block, the third longitudinal groove is located between the central block and the second longitudinal block, and the fourth longitudinal groove is located between the second longitudinal block and the inner shoulder block; The first longitudinal pattern block, the central pattern block and the second longitudinal pattern block are all provided with first slits and second slits, the first slits and the second slits are intersecting straight line slits, and the first slits and the second slits form a diamond checkered pattern on the first longitudinal pattern block, the central pattern block and the second longitudinal pattern block.
2. The anti-stone asymmetric pattern tread according to claim 1, characterized in that: The height of the wavy convex strip is H1, the maximum depth of the longitudinal groove is H2, and the relationship between H1 and H2 is:
3. The anti-stone asymmetric pattern tread according to claim 1, characterized in that: The cross section of the wavy convex strip is spike-shaped, and the connection between the wavy convex strip and the groove bottom is an arc connection.
4. The anti-stone asymmetric pattern tread according to claim 1, characterized in that: The maximum depth of the transverse groove is H3, and the relationship between H3 and H2 is H3 <H2。 5. The anti-stone asymmetric pattern tread according to claim 1, characterized in that: The first longitudinal pattern block is provided with a first transverse groove, and the first transverse groove is a streamlined groove penetrating on both sides.
6. The anti-stone asymmetric pattern tread according to claim 1, characterized in that: The central pattern block is provided with a second transverse groove and a third transverse groove, and the second transverse groove and the third transverse groove are alternately arranged on the central pattern block and are both single-side closed structures.
7. The anti-stone asymmetric pattern tread according to claim 1, characterized in that: The second longitudinal pattern block is provided with a fourth transverse groove, and the fourth transverse groove is an arc-shaped groove with an outer side closed.
8. The anti-stone pinching asymmetric pattern tread according to claim 1, characterized in that: The outer shoulder pattern block is provided with a through fifth transverse groove, and an outer closed third sipe is provided between adjacent grooves. The outer shoulder pattern block is also provided with a circumferential fourth sipe away from the shoulder end.
9. The anti-stone asymmetric pattern tread according to claim 1, characterized in that: The inner shoulder pattern block is provided with a sixth transverse groove which is closed on the outside, and a through fifth sipe is provided between adjacent grooves.
10. A tire for a new energy vehicle, comprising a tread, characterized in that: The tread is an anti-stone pinching asymmetric pattern tread according to any one of claims 1 to 9.