CN216610755U - Tire side supporting rubber - Google Patents

Abstract

The utility model provides a tire side supporting rubber, which belongs to the technical field of tires and is in an asymmetric trapezoidal design, wherein two ends of the supporting rubber are slender, the thickness of the lower end of the supporting rubber is the thinnest, the thickness of the middle part of the supporting rubber is the thickest and is 5-10mm, the distance between the upper end point of the supporting rubber and the end point of a crown band is 15-25mm, and the vertical distance between the lower end point of the supporting rubber and the uppermost end of a bead ring is 2-5 mm. The tire side supporting rubber can solve the problem of easy delamination at the seam allowance, and has the characteristics of ensuring the supporting property, reducing the rigidity of the tire side and greatly improving the comfort.

Description

Tire side supporting rubber

Technical Field

The utility model belongs to the technical field of tires, and particularly relates to a tire side supporting rubber.

Background

Once a traditional tire is punctured or a tread is damaged, the tire can be immediately inflated and lose pressure, and the vehicle can turn over to be out of control in severe cases. According to incomplete statistics, 46% of highway traffic accidents are caused by vehicle tire failures, with tire bursts causing up to about 70% of accidents. The run-flat tire can continue to run for a period of time by depending on the rigidity of the tire side or the support body structure under the decompression state, has higher safety and controllability, and can provide safety guarantee for the running of a vehicle. In recent years, as drivers and passengers have come to pay more attention to the running safety of vehicles, the attention to run-flat tires has also become higher.

Currently, to ensure the support of the sidewall of a run-flat tire, it is generally implemented by adding a support rubber. However, the supporting rubber is thin, the sidewall supporting performance is reduced, and the supporting rubber is thick and the tensile and compressive elastic modulus is high, so that the lower end point of the supporting rubber at the seam allowance part and the end point of the apex at the bead part are separated from the cord fabric due to different deformation amounts, and the comfort of the tire is reduced.

In view of the above, there is a need in the art to provide a support cement structure that can solve the contradiction between tire comfort and support.

SUMMERY OF THE UTILITY MODEL

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 utility model.

The utility model provides a tire side supporting rubber, which solves the technical problem that the comfort and the support of a tire are contradictory, can improve the problem that a seam allowance is easy to delaminate, and has the characteristics of ensuring the support, reducing the rigidity of a tire side and greatly improving the comfort.

The utility model discloses a tire side supporting rubber, which is in an asymmetric trapezoid design, wherein two ends of the supporting rubber are slender, the thickness of the lower end of the supporting rubber is thinnest, the thickness of the middle part of the supporting rubber is thickest and is 5-10mm, the distance between the upper end point of the supporting rubber and the end point of a crown band is 15-25mm, and the vertical distance between the lower end point of the supporting rubber and the uppermost end of a steel wire ring is 2-5 mm.

In some embodiments, the vertical length of the support glue parallel to the profile cross section is divided into six equal parts from the upper end point of the support glue to the lower end point of the support glue, and the six equal parts are divided into L1, L2, L3, L4, L5 and L6, wherein the intersection point of L1 and L2 is a first equal-dividing point, the thickness H1 is 3-5mm, the intersection point of L4 and L5 is a fourth equal-dividing point, the thickness H4 is 3-5mm, the intersection point of L5 and L6 is a fifth equal-dividing point, and the thickness H5 is 1-3 mm.

In some embodiments, the intersection point of the supporting glue L2 and the supporting glue L3 is a second bisector, the intersection point of the supporting glue L3 and the supporting glue L4 is a third bisector, and the second bisector and the third bisector are equal in thickness and are both 4-10mm in thickness.

In some of these embodiments, the thickness of the support glue transitions smoothly from 1-3mm to 0mm from the fifth bisecting point to its lower end point.

In some of these embodiments, L3 located in the middle of the support gel is of a constant thickness trapezoidal design.

In some of these embodiments, the support gum is located on the inside of the sidewall, the apex is located between the lower end of the support gum and the outside of the sidewall, and the ply is located between the support gum and the apex.

In some of these embodiments, the support adhesive has a modulus of elasticity that is less than the modulus of elasticity of the apex.

Compared with the prior art, the utility model has the beneficial effects that:

(1) according to the utility model, through thinning and lengthening treatment of the lower end of the support rubber, the amount of rubber material on the inner side of the triangular rubber can be reduced, more heat generated by the tire due to shear stress deformation can be reduced, and delamination of the connection position of the support rubber and the curtain cloth caused by overhigh local temperature rise due to untimely heat dissipation of the inner side of the triangular rubber due to overhigh heat dissipation can be reduced.

(2) According to the utility model, the L3 positioned in the middle of the supporting rubber adopts an equal-thickness trapezoid design, the thicknesses of the second equant point and the third equant point are both 4-10mm, and the reduction of the overall supporting performance of the supporting rubber on a vehicle due to the reduction of the tail part of the supporting rubber is avoided by thickening the middle part of the supporting rubber at the most concentrated stress point, so that the vehicle can ensure sufficient supporting performance without side turning when running in a short-air condition, the rigidity of the side wall is reduced, and the comfort is greatly improved.

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 not to limit the utility model. In the drawings:

FIG. 1 is a schematic view of a sidewall support compound provided in an embodiment of the present invention;

wherein, 1, the crown band; 2. a sidewall; 3. supporting glue; 4. triangular glue; 5. a bead ring; A. an upper end point of the support glue; B. a lower end point of the support glue; C. end points of the crown band.

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 utility model and are not intended to limit the utility model. 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 utility model, from which it is possible for a person skilled in the art, without inventive effort, to apply the utility model 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 utility model. 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 utility model 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 utility model 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 utility model provides a sidewall supporting rubber, and fig. 1 is a schematic view of a sidewall supporting rubber structure according to the embodiment of the utility model. Referring to fig. 1, the supporting rubber 3 is located inside the sidewall 2, the apex 4 is located between the lower end of the supporting rubber 3 and the outside of the sidewall 2, the ply is located between the supporting rubber 3 and the apex 4, and the elastic modulus of the supporting rubber 3 is smaller than that of the apex 4. Wherein, the supporting rubber 3 is designed in an asymmetric trapezoid shape, two ends of the supporting rubber are slender, the thickness of the lower end of the supporting rubber is thinnest, and the thickness of the middle part of the supporting rubber is thickest and is 5-10 mm. Through the structure, the phenomenon that the lower end point of the support rubber 3 at the seam allowance part and the end point of the triangular rubber 4 are separated from the cord fabric due to different deformation quantities due to the fact that the support rubber 3 is too thick and the tensile and compressive elastic modulus is large can be avoided.

The distance between the upper end point A of the supporting glue and the end point C of the crown band strip is 15-25mm, and the vertical distance between the lower end point B of the supporting glue and the uppermost end of the steel wire ring 5 is 2-5 mm.

According to the overall vertical position of the support adhesive 3, the vertical length of the support adhesive 3 parallel to the profile section is divided into six equal parts, the support adhesive 3 is divided into six equal parts, the vertical length from the upper end point of the support adhesive to the lower end point of the support adhesive is divided into L1, L2, L3, L4, L5 and L6, the intersection point of L1 and L2 is a first equal-dividing point, the thickness H1 is 3-5mm, the intersection point of L2 and L3 is a second equal-dividing point, the thickness H2 is 4-10mm, the intersection point of L3 and L4 is a third equal-dividing point, the thickness H3 is 4-10mm, the intersection point of L4 and L5 is a fourth equal-dividing point, the thickness H4 is 3-5mm, the intersection point of L5 and L6 is a fifth equal-dividing point, the thickness H5 is 1-3mm, and the thickness of the support adhesive is gradually divided from the fifth equal-3 equal-dividing point to the lower end point of the support adhesive 3 and the thickness is 0 mm. Through the thinning and lengthening treatment of the lower end of the support rubber 3, the material consumption of the rubber material on the inner side of the triangular rubber 4 is reduced, the heat generated by the tire due to shear stress deformation is reduced, and meanwhile, the problem of delamination of the connection position of the support rubber 3 and the curtain cloth due to overhigh heat dissipation of the heat on the inner side of the triangular rubber 4 caused by local temperature rise can be reduced.

L3 located in the middle of the supporting rubber 3 is in an equal-thickness trapezoid design, the second equally-dividing point and the third equally-dividing point are in an equal-thickness design, and the thicknesses of the second equally-dividing point and the third equally-dividing point are 4-10 mm. Through thickening the most concentrated point of stress, avoid because support 3 afterbody attenuate, lead to supporting 3 whole supportability to the vehicle of gluing and reduce, make the vehicle can guarantee sufficient support nature and do not take place to turn on one's side when the tire runs in a short of air, reduce the side wall rigidity simultaneously, promote the travelling comfort greatly.

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 utility model. 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 (7)

1. The utility model provides a side wall support glue which characterized in that: the support glue (3) is designed in an asymmetric trapezoid shape, wherein two ends of the support glue (3) are slender, the thickness of the lower end of the support glue is thinnest, the thickness of the middle of the support glue is thickest and is 5-10mm, the distance between the upper end point (A) of the support glue and the end point of the crown band is 15-25mm, and the vertical distance between the lower end point (B) of the support glue and the uppermost end of the steel wire ring (5) is 2-5 mm.

2. The sidewall support gum of claim 1, wherein: according to the overall vertical position of the support glue (3), the vertical length of the support glue (3) parallel to the profile section is divided into six equal parts, and the vertical length from the upper end point (A) of the support glue to the lower end point (B) of the support glue is divided into L1, L2, L3, L4, L5 and L6, wherein the intersection point of L1 and L2 is a first equal-dividing point, the thickness H1 is 3-5mm, the intersection point of L4 and L5 is a fourth equal-dividing point, the thickness H4 is 3-5mm, the intersection point of L5 and L6 is a fifth equal-dividing point, and the thickness H5 is 1-3 mm.

3. The sidewall support gum of claim 2, wherein: the intersection point of the L2 and the L3 of the supporting glue (3) is a second bisector, the intersection point of the L3 and the L4 is a third bisector, the thicknesses of the second bisector and the third bisector are equal, and the thicknesses of the second bisector and the third bisector are both 4-10 mm.

4. The sidewall support gum of claim 2, wherein: the thickness of the supporting glue (3) is gently transited from 1-3mm to 0mm from the fifth bisector to the lower endpoint.

5. The sidewall support gum of claim 2, wherein: the L3 in the middle of the supporting rubber (3) is in a trapezoid shape with the same thickness.

6. The sidewall support gum of claim 1, wherein: the support rubber (3) is located on the inner side of the tire side (2), the apex (4) is located between the lower end of the support rubber (3) and the outer side of the tire side (2), and the cord fabric is located between the support rubber (3) and the apex (4).

7. The sidewall support gum of claim 6, wherein: the elastic modulus of the supporting rubber (3) is smaller than that of the triangular rubber (4).

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