CN114312167A - Support integrated configuration and run-flat tire - Google Patents
Support integrated configuration and run-flat tire Download PDFInfo
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- CN114312167A CN114312167A CN202210099461.3A CN202210099461A CN114312167A CN 114312167 A CN114312167 A CN 114312167A CN 202210099461 A CN202210099461 A CN 202210099461A CN 114312167 A CN114312167 A CN 114312167A
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- end point
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- rubber
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- 239000004744 fabric Substances 0.000 claims abstract description 25
- 239000003292 glue Substances 0.000 claims abstract description 20
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 14
- 239000010959 steel Substances 0.000 claims abstract description 14
- 239000002657 fibrous material Substances 0.000 claims description 4
- 239000002131 composite material Substances 0.000 claims description 2
- 239000000853 adhesive Substances 0.000 claims 1
- 230000001070 adhesive effect Effects 0.000 claims 1
- 230000032798 delamination Effects 0.000 abstract description 5
- 238000005336 cracking Methods 0.000 abstract description 2
- 238000004880 explosion Methods 0.000 abstract 1
- 239000011324 bead Substances 0.000 description 16
- 238000000034 method Methods 0.000 description 12
- 239000000945 filler Substances 0.000 description 9
- 238000004026 adhesive bonding Methods 0.000 description 4
- 238000005452 bending Methods 0.000 description 4
- 238000013461 design Methods 0.000 description 4
- 238000000926 separation method Methods 0.000 description 4
- 239000011248 coating agent Substances 0.000 description 3
- 238000000576 coating method Methods 0.000 description 3
- 230000006835 compression Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- 239000011159 matrix material Substances 0.000 description 3
- 238000007306 functionalization reaction Methods 0.000 description 2
- 238000011056 performance test Methods 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 229920000297 Rayon Polymers 0.000 description 1
- -1 apex Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 239000002964 rayon Substances 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 238000013316 zoning Methods 0.000 description 1
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Abstract
The invention discloses a support combination structure and an explosion-proof tire, and belongs to the field of explosion-proof tires. The support combined structure comprises triangular glue and a steel wire ring attached to the lower part of the triangular glue; the height of the apex is 20% -30% of the height of the lower section of the tire; the triangular rubber and the steel wire ring are coated with a No. 1 carcass cord fabric and a No. 2 carcass cord fabric; triangular rubber is arranged between the No. 1 tire body cord fabric and the No. 2 tire body cord fabric on the outer side of the triangular rubber; the first end point of the triangular glue is 10-20mm below the horizontal axis of the section, the second end point is level with the upper end point of the triangular glue, and the third end point is 5-10mm above the horizontal position of the steel wire ring; and arranging support rubber on the inner side of the No. 2 carcass ply. The support combination structure and the anti-explosion tire provided by the invention can ensure the super-strong support property and reduce the occurrence of cracking and delamination of each component.
Description
Technical Field
The invention belongs to the field of run-flat tires, and particularly relates to a supporting combined structure and a run-flat tire.
Background
In recent years, drivers and passengers have paid more and more attention to the driving safety of vehicles, and run flat tires have become the first choice for more and more vehicle owners. The run-flat tire can guarantee that the vehicle still can support the vehicle and go after the problem such as blow out appears in the driving process.
Traditional run-flat tire, bead, apex, matrix, side wall outer jacket, reinforcing layer and support the combination of gluing provide superstrong support nature in the bead, the vehicle is shown to be the superstrong support nature of rim in the run-flat driving process bead position, nevertheless because bead position part is too much, each part is tensile and compression modulus diverse, forms a plurality of stress concentration points easily, has each part delaminating fracture's important risk at the actual in-process of traveling.
Disclosure of Invention
The invention provides a support combination structure and an explosion-proof tire, which can reduce and reduce the occurrence of cracking and delamination of each part and improve the durability of the tire while ensuring the super-strong support performance.
The invention provides a support combined structure, which comprises a bead filler and a steel wire ring attached to the lower part of the bead filler; the height of the apex is 20% -30% of the height of the lower section of the tire; the triangular rubber and the steel wire ring are coated with a No. 1 carcass cord fabric and a No. 2 carcass cord fabric; triangular rubber is arranged between the No. 1 tire body cord fabric and the No. 2 tire body cord fabric on the outer side of the triangular rubber; the first end point of the triangular glue is 10-20mm below the horizontal axis of the section, the second end point is level with the upper end point of the triangular glue, and the third end point is 5-10mm above the horizontal position of the steel wire ring; and arranging support rubber on the inner side of the No. 2 carcass ply.
Preferably, the hardness of the apex is HS88-HS 92.
Preferably, the elastic modulus of the apex is 6.8-7.2 MPa.
Preferably, the thickness of the thickest point of the support glue is 6-10 mm.
Preferably, the horizontal distance between the upper end point of the support rubber and the end point of the running surface is 10-15mm, and the vertical distance between the lower end point of the support rubber and the bead heel point is 10-15 mm.
Preferably, the outer end point of the No. 1 carcass ply is 10-20mm above the horizontal axis of the section.
Preferably, the outer end point of the No. 2 carcass ply is 20-30mm below the outer end point of the No. 1 carcass ply.
Preferably, the 2# carcass ply is made of fiber materials.
The invention also provides a run-flat tire which comprises the support combination structure.
Preferably, the run flat tire further comprises a tread, a cap ply, a belt, a sidewall and an inner liner.
Compared with the prior art, the invention has the beneficial effects that:
the invention provides a support combination structure and an explosion-proof tire, wherein the height of a bead filler is limited to be 20% -30% of the height of a lower section of the tire, and compared with a common explosion-proof tire, the bead filler provided by the invention is smaller in design size, so that the bead filler is positioned below a rim protection position, and because the bead filler is positioned below the rim protection position, the deflection point position of the rim protection position of the tire is avoided, the durability of run-flat is greatly enhanced, the support performance below the rim protection position is enhanced, and the stress of a seam allowance part is more uniform during run-flat.
Set up triangle-shaped type and glue between 1# matrix curtain cloth and 2# matrix curtain cloth outside the apex, and limited the position of triangle-shaped type three extreme point of gluing, the support nature of the side wall below the horizontal axis above the rim has been guaranteed, make rim tire cooperation department, when can guarantee the deflection, avoid tire and rim to throw off when making the tire run flat, more can guarantee that the side wall has certain bending deformation elasticity, when satisfying the support nature in the driving process, make the side wall overall deformation comparatively slick and sly, the distribution of atress flexure point is more even, avoid each position to throw off because each position that the different deformation of atress leads to.
According to the invention, the 2# tire body cord fabric is coated outside the triangular rubber, the bead ring, the 1# tire body cord fabric and the triangular rubber, and the lower tire side support assembly is integrally coated, so that the parts of the comprehensive support body are relatively independent and have certain relevance, the independent deformation of each part is changed into mutual traction deformation when each part deforms, the parts are changed into systematization under the condition of partition functionalization, the lower part of the seam allowance part has ultrahigh support performance, the upper part of the seam allowance part has stronger bending resistance, and the phenomenon that the compression and stretching deformation amount of each part is different to cause mutual separation of each part and cause delamination of the seam allowance part due to different stretching and elastic modulus of each part is avoided.
Furthermore, a No. 1 tire body cord fabric is coated outside the apex, the reverse coating end point of the cord fabric is positioned 10-20mm above the horizontal axis of the cross section, and the high reverse coating tire body cord fabric is coated, so that the deformation of the apex end point is greatly reduced due to the clamping of an inner layer of line and an outer layer of line in the stress process, and the durability of the run-flat tire is favorably improved.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and not to limit the invention. In the drawings:
FIG. 1 is a schematic structural view of a run-flat tire according to an embodiment of the present invention;
FIG. 2 is a schematic view of a support assembly structure in a deformed state, wherein FIG. 2-a is a schematic view of a prior art deformation; FIG. 2-b is a schematic view in the present embodiment;
wherein: 1-tire tread, 2-cap ply, 3-belt ply, 4-tire side, 5-11 # tire cord fabric, 5-22 # tire cord fabric, 6-triangular glue, 7-triangular glue, 8-steel wire ring, 9-inner liner and 10-support glue.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described and illustrated below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments provided by the present invention, belong to the protection scope of the present invention.
It is obvious that the drawings in the following description are only examples or embodiments of the invention, from which it is possible for a person skilled in the art, without inventive effort, to apply the invention also in other similar contexts. Moreover, it should be appreciated that in the development of any such actual implementation, as in any engineering or design project, numerous implementation-specific decisions must be made to achieve the developers' specific goals, such as compliance with system-related and business-related constraints, which may vary from one implementation to another.
Reference in the specification to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the invention. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. It is explicitly and implicitly understood by one of ordinary skill in the art that the described embodiments of the present invention can be combined with other embodiments without conflict.
Unless defined otherwise, technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this invention belongs. The use of the terms "a" and "an" and "the" and similar referents in the context of describing the invention are not to be construed as limiting in number, and may be construed to cover both the singular and the plural. The present invention relates to the terms "comprises," "comprising," "includes," "including," "has," "having" and any variations thereof, which are intended to cover non-exclusive inclusions; for example, a process, method, system, article, or apparatus that comprises a list of steps or modules (elements) is not limited to the listed steps or elements, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus. The terms "connected," "coupled," and the like in the description of the invention are not restricted to physical or mechanical connections, but may include electrical connections, whether direct or indirect. The term "plurality" as used herein means two or more. "and/or" describes an association relationship of associated objects, meaning that three relationships may exist, for example, "A and/or B" may mean: a exists alone, A and B exist simultaneously, and B exists alone. The character "/" generally indicates that the former and latter associated objects are in an "or" relationship. The terms "first," "second," "third," and the like in reference to the present invention are used merely to distinguish between similar objects and not necessarily to represent a particular ordering for the objects.
The embodiment of the invention provides a support combination structure and an explosion-proof tire, and referring to fig. 1, the support combination structure provided by the embodiment of the invention comprises a bead filler 7 and a steel wire ring 8 attached to the lower part of the bead filler 7; the height of the apex 7 is 20% -30% of the height of the lower section of the tire; the bead filler 7 and the steel wire ring 8 are coated with a No. 1 carcass ply 5-1 and a No. 2 carcass ply 5-2; a triangular rubber 6 is arranged between the No. 1 carcass ply 5-1 and the No. 2 carcass ply 5-2 outside the triangular rubber 7; the first end point of the triangular glue 6 is 10-20mm below the horizontal axis of the cross section, the second end point is level with the upper end point of the triangular glue 7, and the third end point is 5-10mm above the horizontal position of the steel wire ring 8; and supporting rubber 10 is arranged on the inner side of the No. 2 carcass ply 5-2.
In the invention, the height of the apex 7 is limited to be 20-30% of the height of the lower section of the tire, compared with the common run-flat tire, the apex 7 has smaller design size, so that the apex 7 is positioned below the rim protection position, and because the apex is positioned below the rim protection position, the deflection point position of the tire rim protection position is avoided, the durability of run-flat running is greatly enhanced, the support performance below the rim protection position is enhanced, and the stress of the seam allowance part is more uniform during run-flat running.
In the invention, the hardness of the apex 7 is HS90-HS 110. In this embodiment, the triangular rubber 7 with super-strong support property is used, so that the support property of the seam allowance part can be improved, and the durability of run-flat running is improved.
In the invention, furthermore, the elastic modulus of the apex 7 is 6.8-7.2 MPa. In the embodiment, the elastic modulus of the apex 7 is limited, so that the apex 7 is close to the deformation of the tire body when stressed, and the problem of delamination of the seam allowance part caused by asynchronous deformation of the tire body and the apex 7 due to stress concentration is avoided.
In the invention, the triangular rubber 6 is arranged between the No. 1 tire body cord fabric 5-1 and the No. 2 tire body cord fabric 5-2 outside the triangular rubber 7, the positions of three end points of the triangular rubber 6 are limited, the thickest point is positioned at the rim protection position, the support property of the tire side 4 below a horizontal shaft above the rim is ensured, the tire side 4 is matched with the rim tire, the deformation is ensured, the separation of the tire and the rim is avoided when the tire runs in a short of air, the certain bending deformation elasticity of the tire side 4 is ensured, the support property is met during the running process, the integral deformation of the tire side 4 is smooth, the distribution of stress deflection points is more uniform, and the separation of each position caused by different deformation under different stress is avoided. In the invention, further, the thickness of the thickest point of the triangular glue 6 is 4-5 mm.
In the invention, the No. 2 carcass ply 5-2 is coated outside the triangular rubber 7, the steel wire ring 8, the No. 1 carcass ply 5-1 and the triangular rubber 6, the integral coating of the lower sidewall 4 supporting assembly enables the parts of the comprehensive supporting body to be relatively independent and have certain relevance, the deformation of each part is changed from independent deformation to mutual traction deformation, so that the part is changed into systematization under the condition of zoning functionalization, so that the deformation is as shown in fig. 2, from the pattern of fig. 2-a to the pattern of fig. 2-b, the lower part of the seam allowance part has ultrahigh support performance, the upper part of the seam allowance part has stronger bending resistance, and delamination caused by mutual separation of all parts due to different compression and tension deformation quantities caused by different tensile and elastic moduli of all parts is avoided.
In the present invention, the # 2 carcass ply 5-2 is made of a fiber material, and further made of polyester fiber or rayon. In the embodiment, the 2# carcass ply 5-2 made of the fiber material can realize flexible transition with the seam allowance part, so that the stress dispersion effect is achieved, and the comfort performance is improved to a certain extent.
In the invention, the outer end point of the No. 1 carcass ply 5-1 is 10-20mm above the horizontal axis of the cross section. In the embodiment, the end point of the No. 1 tire body cord fabric 5-1 is limited, so that the reverse wrapping end point position of the No. 1 tire body is 10-20mm above the horizontal axis of the cross section, and the tire body cord fabric with high reverse wrapping is wrapped, so that the deformation amount is greatly reduced due to the clamping of an inner layer and an outer layer of connecting lines in the stress process of the end point position of the apex 7, and the durability of the run-flat tire is favorably improved.
In the present invention, further, the thickness of the support glue 10 at the thickest point is 6-10 mm. The horizontal distance between the upper end point of the support rubber 10 and the end point of the running surface is 10-15mm, and the vertical distance between the lower end point of the support rubber 10 and the bead heel point is 10-15 mm. In this embodiment, support 10 lower part position thickness of gluing and support 3-5mm thinner than traditional 10 thickness of gluing, the design is glued to the comparatively thin and long support in bottom, 6 uses are glued to the cooperation triangle-shaped type, make the size that supports and glue 10 reduce greatly, the themogenesis is lower, the position is glued more to the outer in the position of rim of a mouth position, make the heat that produces at the warping in-process give off to the external world rather than giving off to the tire cavity, strengthen the heat-sinking capability at rim of a mouth position greatly, prevent that the high rim of a mouth position themogenesis of tire from resulting in the rim of a mouth position to damage, promote tire durability greatly.
The invention also provides a run-flat tire which comprises the support combination structure.
Preferably, the run flat tire further comprises a tread 1, a cap ply 2, a belt 3, a sidewall 4, and an inner liner 9.
Performance testing
1. Support composite structure and run-flat tire performance data
Taking 235/55R19 as an example, the specific scheme is shown in Table 1, and the performance test results are shown in Table 2.
TABLE 1 test protocol
Table 2 performance test data
As can be seen from table 2, the support assembly structure provided by the invention in the scheme 1 has higher tire zero-air-pressure durability than that of a common run-flat tire, meanwhile, the tire damage condition is that the support rubber 10 is broken, the damage of a traditional run-flat tire is that the apex 7 is broken and delaminated, and the support assembly structure provided by the invention has higher durability.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (10)
1. A support composite structure is characterized by comprising triangular glue and a steel wire ring attached to the lower part of the triangular glue; the height of the apex is 20% -30% of the height of the lower section of the tire; the triangular rubber and the steel wire ring are coated with a No. 1 carcass cord fabric and a No. 2 carcass cord fabric; triangular rubber is arranged between the No. 1 tire body cord fabric and the No. 2 tire body cord fabric on the outer side of the triangular rubber; the first end point of the triangular glue is 10-20mm below the horizontal axis of the section, the second end point is level with the upper end point of the triangular glue, and the third end point is 5-10mm above the horizontal position of the steel wire ring; and arranging support rubber on the inner side of the No. 2 carcass ply.
2. The support assembly structure of claim 1, wherein the apex has a durometer of HS88-HS 92.
3. The support assembly structure of claim 1, wherein the apex has a modulus of elasticity of 6.8-7.2 Mpa.
4. The support assembly structure of claim 1, wherein the support adhesive thickest point has a thickness of 6-10 mm.
5. The support assembly structure according to claim 1, wherein the horizontal distance between the upper end point of the support rubber and the end point of the running surface is 10-15mm, and the vertical distance between the lower end point and the heel point is 10-15 mm.
6. The support assembly structure of claim 1, wherein the outer end points of the # 1 carcass ply are located 10-20mm above the horizontal axis of the cross-section.
7. The support assembly structure of claim 1, wherein the outboard end point of the # 2 carcass ply is 20-30mm below the outboard end point of the # 1 carcass ply.
8. The support assembly structure of claim 1, wherein said # 2 carcass ply is a fibrous material.
9. A run flat tire characterized by: comprising the support assembly structure of any one of claims 1 to 8.
10. A run-flat tire according to claim 9, characterized in that it further comprises a tread, a cap ply, a belt, sidewalls and an inner liner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210099461.3A CN114312167B (en) | 2022-01-27 | 2022-01-27 | Support combined structure and explosion-proof tire |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210099461.3A CN114312167B (en) | 2022-01-27 | 2022-01-27 | Support combined structure and explosion-proof tire |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114312167A true CN114312167A (en) | 2022-04-12 |
| CN114312167B CN114312167B (en) | 2024-03-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210099461.3A Active CN114312167B (en) | 2022-01-27 | 2022-01-27 | Support combined structure and explosion-proof tire |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009126347A (en) * | 2007-11-22 | 2009-06-11 | Sumitomo Rubber Ind Ltd | Run flat tire |
| JP2010111172A (en) * | 2008-11-04 | 2010-05-20 | Sumitomo Rubber Ind Ltd | Run-flat tire |
| JP2016107847A (en) * | 2014-12-08 | 2016-06-20 | 住友ゴム工業株式会社 | Pneumatic tire |
| US20160236521A1 (en) * | 2013-11-18 | 2016-08-18 | Sumitomo Rubber Industries, Ltd. | Pneumatic tire |
| CN108995482A (en) * | 2018-09-05 | 2018-12-14 | 江苏通用科技股份有限公司 | The all-steel load-bearing radial tire structure of the double-deck body cord |
| CN209776052U (en) * | 2018-12-21 | 2019-12-13 | 安徽佳通乘用子午线轮胎有限公司 | novel tire bead reinforcing structure |
| CN111775637A (en) * | 2020-07-14 | 2020-10-16 | 江苏通用科技股份有限公司 | All-steel load-bearing radial tire bead structure |
-
2022
- 2022-01-27 CN CN202210099461.3A patent/CN114312167B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009126347A (en) * | 2007-11-22 | 2009-06-11 | Sumitomo Rubber Ind Ltd | Run flat tire |
| JP2010111172A (en) * | 2008-11-04 | 2010-05-20 | Sumitomo Rubber Ind Ltd | Run-flat tire |
| US20160236521A1 (en) * | 2013-11-18 | 2016-08-18 | Sumitomo Rubber Industries, Ltd. | Pneumatic tire |
| JP2016107847A (en) * | 2014-12-08 | 2016-06-20 | 住友ゴム工業株式会社 | Pneumatic tire |
| CN108995482A (en) * | 2018-09-05 | 2018-12-14 | 江苏通用科技股份有限公司 | The all-steel load-bearing radial tire structure of the double-deck body cord |
| CN209776052U (en) * | 2018-12-21 | 2019-12-13 | 安徽佳通乘用子午线轮胎有限公司 | novel tire bead reinforcing structure |
| CN111775637A (en) * | 2020-07-14 | 2020-10-16 | 江苏通用科技股份有限公司 | All-steel load-bearing radial tire bead structure |
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| Publication number | Publication date |
|---|---|
| CN114312167B (en) | 2024-03-01 |
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