Tire

Abstract

The utility model provides a tire which comprises a bonding layer, at least part of the bonding layer wraps the outer side of a steel wire ring, the bonding layer is provided with a first bonding surface and a second bonding surface which are oppositely arranged in the radial direction of the steel wire ring, and the first bonding surface is close to the steel wire ring relative to the second bonding surface; the end of the transition layer and the end of the airtight layer are both connected with the bonding layer, and the transition layer is located on the side, close to the steel wire ring, of the airtight layer; in the radial direction of the steel wire ring, a first connecting face, connected with the transition layer, on the bonding layer and a second connecting face, connected with the airtight layer, on the bonding layer are both located between the first bonding face and the second bonding face. According to the utility model, the problem that bubbles are easy to appear at the seam allowance part of the tire in the prior art is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of tires, in particular to a tire. Background Art

[0002] The tire bead corresponds to the position of the steel rim body inside the tire. During the tire processing, the steel rim body is wrapped by the carcass body, the bead cover, and the inner liner composite. The outside of the bead cover is adhered with wear-resistant rubber. The inner liner composite includes a transition layer and an airtight layer. One side of the transition layer is connected to the wear-resistant rubber, and one side of the airtight layer is connected to the wear-resistant rubber. The transition layer is located on the upper surface of the airtight layer, and the airtight layer and the transition layer are connected into one piece up and down. Since the distance between the connecting surface between the transition layer and the wear-resistant rubber and the connecting surface between the airtight layer and the wear-resistant rubber is large, a large closed gap is formed between the airtight layer, the transition layer and the wear-resistant rubber. It is easy for more air to remain between the closed gap, which makes it easy to form bubbles at the tire bead. Once there are bubbles in this area, the vehicle will generate heat due to long-term wear during driving, which can easily cause the tire steel rim body to separate from the rim, resulting in a huge risk of tire debonding or even tire blowout. Utility Model Content

[0003] The main purpose of the utility model is to provide a tire to solve the problem that air bubbles are easily generated at the tire mouth in the prior art.

[0004] In order to achieve the above-mentioned purpose, the utility model provides a tire, comprising: an adhesive layer, at least a portion of the adhesive layer is wrapped around the outside of a steel wire ring, the adhesive layer having a first adhesive surface and a second adhesive surface arranged opposite to each other along the radial direction of the steel wire ring, the first adhesive surface being arranged close to the steel wire ring relative to the second adhesive surface; an airtight layer and a transition layer, the end of the transition layer and the end of the airtight layer are both connected to the adhesive layer, and the transition layer is located on the side of the airtight layer close to the steel wire ring; wherein, along the radial direction of the steel wire ring, the first connecting surface on the adhesive layer connected to the transition layer, and the second connecting surface on the adhesive layer connected to the airtight layer are both located between the first bonding surface and the second bonding surface.

[0005] Furthermore, the adhesive layer has a first adhesive surface, a second adhesive surface, a third adhesive surface and a fourth adhesive surface which are connected to each other, the third adhesive surface and the fourth adhesive surface are respectively arranged on both sides of the first adhesive surface, the third adhesive surface and the fourth adhesive surface are both arranged between the first adhesive surface and the second adhesive surface, and the first connecting surface and the second connecting surface are both arranged on the fourth adhesive surface.

[0006] Furthermore, the first bonding surface and the second bonding surface are both planes, and the first bonding surface and the second bonding surface are arranged in parallel. Along the distribution direction of the first bonding surface and the second bonding surface, the distance between the first bonding surface and the second bonding surface is d1, and the minimum distance between the first connecting surface and the first bonding surface is d2; wherein, 0.1d1≤d2≤0.3d1.

[0007] Furthermore, the first connecting surface is arranged close to the third bonding surface relative to the second connecting surface, and along the extension direction of the second bonding surface, the distance between the first connecting line of the first connecting surface closest to the first bonding surface and the second connecting line of the second connecting surface closest to the first bonding surface is d3; wherein, 0.2d1≤d3≤0.4d1.

[0008] Furthermore, the transition layer has a first transition surface and a second transition surface arranged opposite to each other along the radial direction of the wire ring, the first transition surface is arranged close to the wire ring relative to the second transition surface, the distance between the first transition surface and the second transition surface is the thickness of the transition layer, the thickness of the transition layer is the same at all locations, and the maximum thickness of the transition layer is equal to 0.05d1.

[0009] Furthermore, the airtight layer has a first airtight surface and a second airtight surface arranged relatively to each other along the radial direction of the steel wire ring. The first airtight surface is arranged close to the steel wire ring relative to the second airtight surface. The distance between the first airtight surface and the second airtight surface is the thickness of the airtight layer. The thickness of the airtight layer is the same at all places, and the maximum thickness of the airtight layer is equal to 0.05d1.

[0010] Furthermore, the transition layer includes a first transition section and a second transition section connected to each other, the first transition section and the fourth bonding surface are tightly fitted, and along the distribution direction of the first bonding surface and the second bonding surface, the distance between the end of the first transition section away from the second transition section and the first bonding surface is the minimum distance between the first connecting surface and the first bonding surface.

[0011] Furthermore, the extension direction of the second transition section may intersect with the extension direction of the first transition section, and the first airtight surface and the second airtight surface of at least part of the airtight layer are connected to the second transition section and the adhesive layer respectively.

[0012] Furthermore, the transition layer, the adhesive layer and the airtight layer together form a closed gap, and an exhaust hole is provided on the second transition section. The exhaust hole runs through the second transition section and is connected to the closed gap so that the gas in the closed gap can be discharged from the exhaust hole.

[0013] Furthermore, the tire has two steel rings arranged opposite to each other in the axial direction of the tire, the projection point of the connecting line between the first bonding surface and the fourth bonding surface on the preset plane is the first projection point, the projection point of the axis of the steel ring on the preset plane is the second projection point, and the value range of the angle θ between the connecting line between the first projection point and the second projection point and the axial direction of the tire is 0<θ≤45°; wherein the preset plane is the axial section of the steel ring.

[0014] By applying the technical solution of the present invention, the tire includes an adhesive layer, an airtight layer and a transition layer. The adhesive layer has a first adhesive surface and a second adhesive surface that are relatively arranged along the radial direction of the wire ring. The first connecting surface on the adhesive layer connected to the transition layer and the second connecting surface on the adhesive layer connected to the airtight layer are both located between the first adhesive surface and the second adhesive surface, so that the distance between the first connecting surface and the second connecting surface in the distribution direction of the first adhesive surface and the second adhesive surface is small, resulting in a smaller closed gap formed between the airtight layer, the transition layer and the adhesive layer, and less air remaining between the closed gaps, so that bubbles are not easily formed in the tire mouth, thereby solving the problem of bubbles easily occurring in the tire mouth in the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The drawings constituting part of this application are provided to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are provided to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0016] Figure 1 A schematic structural diagram showing an angle of an embodiment of a tire mouth portion according to the present utility model;

[0017] Figure 2 Shown Figure 1 A local enlarged schematic diagram of point A in FIG;

[0018] Figure 3 A structural schematic diagram of a tire mouth portion according to an embodiment of the present invention is shown from another angle.

[0019] The above drawings include the following reference numerals:

[0020] 8. Awl; 10. Adhesive layer; 20. Airtight layer; 30. Transition layer; 11. First bonding surface; 12. Second bonding surface; 13. Third bonding surface; 14. Fourth bonding surface; 1. First connecting line; 2. Second connecting line; 31. First transition surface; 32. Second transition surface; 22. Second airtight surface; 33. First transition section; 34. Second transition section; 3. Confined gap; 4. First projection point; 5. Second projection point. DETAILED DESCRIPTION

[0021] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, they indicate the presence of features, steps, operations, devices, components and / or combinations thereof.

[0022] Unless otherwise specifically stated, the relative arrangement of the parts and steps, numerical expressions and numerical values ​​set forth in these embodiments do not limit the scope of the present application. At the same time, it should be understood that, for ease of description, the sizes of the various parts shown in the drawings are not drawn according to actual proportional relationships. The techniques, methods and equipment known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, the techniques, methods and equipment should be considered as part of the authorization specification. In all examples shown and discussed here, any specific values ​​should be interpreted as being merely exemplary and not as limitations. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that similar numbers and letters represent similar items in the following figures, and therefore, once an item is defined in one figure, it does not need to be further discussed in subsequent figures.

[0023] In the description of this application, it should be understood that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "horizontal, vertical, vertical, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of this application; the directional words "inside and outside" refer to the inside and outside relative to the outline of each component itself.

[0024] Please refer to Figures 1 to 3 The utility model provides a tire, comprising: an adhesive layer 10, at least a portion of the adhesive layer 10 is wrapped around the outside of a steel bead ring, the adhesive layer 10 having a first adhesive surface 11 and a second adhesive surface 12 arranged opposite to each other in the radial direction of the steel bead ring, the first adhesive surface 11 being arranged closer to the steel bead ring relative to the second adhesive surface 12; an airtight layer 20 and a transition layer 30, the end of the transition layer 30 and the end of the airtight layer 20 are both connected to the adhesive layer 10, and the transition layer 30 is located on the side of the airtight layer 20 close to the steel bead ring; wherein, along the radial direction of the steel bead ring, the first connecting surface on the adhesive layer 10 connected to the transition layer 30 and the second connecting surface on the adhesive layer 10 connected to the airtight layer 20 are both located between the first adhesive surface 11 and the second adhesive surface 12.

[0025] The tire of the present invention includes an adhesive layer 10, an airtight layer 20 and a transition layer 30. The adhesive layer 10 has a first adhesive surface 11 and a second adhesive surface 12 which are arranged relatively to each other along the radial direction of the wire ring. The first connecting surface on the adhesive layer 10 connected to the transition layer 30 and the second connecting surface on the adhesive layer 10 connected to the airtight layer 20 are both located between the first adhesive surface 11 and the second adhesive surface 12, so that the distance between the first connecting surface and the second connecting surface in the distribution direction of the first adhesive surface 11 and the second adhesive surface 12 is small, resulting in a smaller closed gap formed between the airtight layer 20, the transition layer 30 and the adhesive layer 10, and less air remaining between the closed gaps, so that bubbles are not easily formed at the tire mouth, thereby solving the problem of bubbles easily occurring at the tire mouth in the prior art.

[0026] In this embodiment, the adhesive layer 10 has a first adhesive surface 11, a second adhesive surface 12, a third adhesive surface 13 and a fourth adhesive surface 14 which are connected to each other. The third adhesive surface 13 and the fourth adhesive surface 14 are respectively arranged on both sides of the first adhesive surface 11, and the third adhesive surface 13 and the fourth adhesive surface 14 are both arranged between the first adhesive surface 11 and the second adhesive surface 12. The first connecting surface and the second connecting surface are both arranged on the fourth adhesive surface 14.

[0027] Specifically, the fourth bonding surface 14 is used to bond the airtight layer 20 and the transition layer 30 .

[0028] In this embodiment, the first bonding surface 11 and the second bonding surface 12 are both planes, and the first bonding surface 11 and the second bonding surface 12 are arranged in parallel. Along the distribution direction of the first bonding surface 11 and the second bonding surface 12, the distance between the first bonding surface 11 and the second bonding surface 12 is d1, and the minimum distance between the first connecting surface and the first bonding surface 11 is d2; wherein, 0.1d1≤d2≤0.3d1.

[0029] Specifically, such a setting ensures that the point on the first connecting surface closest to the first bonding surface 11 is located below the first bonding surface 11, and further ensures that the distance between the first connecting surface and the second connecting surface in the distribution direction of the first bonding surface 11 and the second bonding surface 12 is small, resulting in a smaller closed gap formed between the airtight layer 20, the transition layer 30 and the bonding layer 10.

[0030] Optionally, d1 is 100 mm.

[0031] In this embodiment, the first connecting surface is arranged close to the third bonding surface 13 relative to the second connecting surface. Along the extension direction of the second bonding surface 12, the distance between the first connecting line 1 of the first connecting surface closest to the first bonding surface 11 and the second connecting line 2 of the second connecting surface closest to the first bonding surface 11 is d3; wherein 0.2d1≤d3≤0.4d1.

[0032] Specifically, such a configuration ensures that the transition layer 30 can cover the airtight layer 20, ensuring that the transition layer 30 can fully play a transition role, thereby avoiding loose connection between the airtight layer 20 and other components of the tire, which may cause damage to the tire.

[0033] In this embodiment, the transition layer 30 has a first transition surface 31 and a second transition surface 32 arranged opposite to each other along the radial direction of the wire ring. The first transition surface 31 is arranged close to the wire ring relative to the second transition surface 32. The distance between the first transition surface 31 and the second transition surface 32 is the thickness of the transition layer 30. The thickness of the transition layer 30 is the same at all locations, and the maximum thickness of the transition layer 30 is equal to 0.05d1.

[0034] Specifically, such a setting can avoid the thickness of the transition layer 30 being too large, resulting in a larger distance between the first connecting surface and the second connecting surface in the distribution direction of the first bonding surface 11 and the second bonding surface 12, thereby ensuring that the closed gap formed between the airtight layer 20, the transition layer 30 and the bonding layer 10 is small.

[0035] In this embodiment, the airtight layer 20 has a first airtight surface and a second airtight surface 22 which are arranged relatively to each other along the radial direction of the wire ring. The first airtight surface is arranged close to the wire ring relative to the second airtight surface 22. The distance between the first airtight surface and the second airtight surface 22 is the thickness of the airtight layer 20. The thickness of the airtight layer 20 is the same at all places, and the maximum thickness of the airtight layer 20 is equal to 0.05d1.

[0036] Specifically, such a setting can avoid the thickness of the airtight layer 20 being too large, resulting in a larger distance between the first connecting surface and the second connecting surface in the distribution direction of the first bonding surface 11 and the second bonding surface 12, thereby ensuring that the closed gap formed between the airtight layer 20, the transition layer 30 and the bonding layer 10 is small.

[0037] In this embodiment, the transition layer 30 includes a first transition section 33 and a second transition section 34 connected to each other. The first transition section 33 and the fourth bonding surface 14 are tightly fitted. Along the distribution direction of the first bonding surface 11 and the second bonding surface 12, the distance between the end of the first transition section 33 away from the second transition section 34 and the first bonding surface 11 is the minimum distance between the first connecting surface and the first bonding surface 11.

[0038] Specifically, the first transition section 33 and the fourth bonding surface 14 are tightly fitted together to avoid a large closed gap formed between the airtight layer 20, the transition layer 30 and the bonding layer 10 due to the shape mismatch between the first transition section 33 and the fourth bonding surface 14.

[0039] In this embodiment, the extension direction of the second transition section 34 may intersect with the extension direction of the first transition section 33 , and at least part of the first airtight surface and the second airtight surface 22 of the airtight layer 20 are connected to the second transition section 34 and the adhesive layer 10 respectively.

[0040] Specifically, by connecting the first airtight surface and the second airtight surface 22 of at least part of the airtight layer 20 to the second transition section 34 and the bonding layer 10 respectively, the shape mismatch between the airtight layer 20 and the fourth bonding surface 14 is avoided, resulting in a larger closed gap formed between the airtight layer 20, the transition layer 30 and the bonding layer 10.

[0041] In this embodiment, the transition layer 30, the adhesive layer 10 and the airtight layer 20 together form a closed gap 3. An exhaust hole is provided on the second transition section 34. The exhaust hole is provided through the second transition section 34. The exhaust hole is connected to the closed gap 3 so that the gas in the closed gap 3 can be discharged from the exhaust hole.

[0042] Specifically, an exhaust hole can be pierced on the second transition section 34 by an awl 8, and the gas in the closed gap 3 is discharged from the exhaust hole, further reducing the residual air between the closed gaps 3, so that bubbles are not easily formed at the tire mouth.

[0043] In this embodiment, the tire has two steel rings arranged opposite to each other in the axial direction of the tire, the projection point of the connecting line between the first bonding surface 11 and the fourth bonding surface 14 on the preset plane is the first projection point 4, the projection point of the axis of the steel ring on the preset plane is the second projection point 5, and the value range of the angle θ between the connecting line between the first projection point 4 and the second projection point 5 and the axial direction of the tire is 0<θ≤45°; wherein the preset plane is the axial section of the steel ring.

[0044] Specifically, such an arrangement ensures that the first connection surface of the adhesive layer 10 connected to the transition layer 30 and the second connection surface of the adhesive layer 10 connected to the airtight layer 20 are both located between the first adhesive surface 11 and the second adhesive surface 12 .

[0045] From the above description, it can be seen that the above embodiments of the present invention achieve the following technical effects:

[0046] The tire of the present invention includes an adhesive layer 10, an airtight layer 20 and a transition layer 30. The adhesive layer 10 has a first adhesive surface 11 and a second adhesive surface 12 which are arranged relatively to each other along the radial direction of the wire ring. The first connecting surface on the adhesive layer 10 connected to the transition layer 30 and the second connecting surface on the adhesive layer 10 connected to the airtight layer 20 are both located between the first adhesive surface 11 and the second adhesive surface 12, so that the distance between the first connecting surface and the second connecting surface in the distribution direction of the first adhesive surface 11 and the second adhesive surface 12 is small, resulting in a smaller closed gap formed between the airtight layer 20, the transition layer 30 and the adhesive layer 10, and less air remaining between the closed gaps, so that bubbles are not easily formed at the tire mouth, thereby solving the problem of bubbles easily occurring at the tire mouth in the prior art.

[0047] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used herein to describe the spatial positional relationship of a device or feature to other devices or features as shown in the figures. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figures. For example, if the device in the drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0048] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of this application.

[0049] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that the present invention is susceptible to various modifications and variations. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A tire, characterized in that: include: an adhesive layer (10), at least a portion of the adhesive layer (10) being wrapped around the outer side of the wire ring, the adhesive layer (10) having a first adhesive surface (11) and a second adhesive surface (12) being arranged opposite to each other in a radial direction of the wire ring, the first adhesive surface (11) being arranged closer to the wire ring relative to the second adhesive surface (12); An airtight layer (20) and a transition layer (30), wherein an end of the transition layer (30) and an end of the airtight layer (20) are both connected to the bonding layer (10), and the transition layer (30) is located on a side of the airtight layer (20) close to the wire ring; Wherein, along the radial direction of the wire ring, the first connection surface on the bonding layer (10) connected to the transition layer (30) and the second connection surface on the bonding layer (10) connected to the airtight layer (20) are both located between the first bonding surface (11) and the second bonding surface (12).

2. The tire according to claim 1, wherein The adhesive layer (10) comprises a first adhesive surface (11), a second adhesive surface (12), a third adhesive surface (13) and a fourth adhesive surface (14) which are connected to each other; the third adhesive surface (13) and the fourth adhesive surface (14) are respectively arranged on both sides of the first adhesive surface (11); the third adhesive surface (13) and the fourth adhesive surface (14) are both arranged between the first adhesive surface (11) and the second adhesive surface (12); and the first connecting surface and the second connecting surface are both arranged on the fourth adhesive surface (14).

3. The tire according to claim 1, wherein The first bonding surface (11) and the second bonding surface (12) are both planes. The first bonding surface (11) and the second bonding surface (12) are arranged in parallel. Along the distribution direction of the first bonding surface (11) and the second bonding surface (12), the distance between the first bonding surface (11) and the second bonding surface (12) is d1, and the minimum distance between the first connecting surface and the first bonding surface (11) is d2; wherein 0.1d1≤d2≤0.3d1.

4. The tire according to claim 2, characterized in that Along the extension direction of the second bonding surface (12), the distance between the first connection line (1) of the first connection surface closest to the first bonding surface (11) and the second connection line (2) of the second connection surface closest to the first bonding surface (11) is d3; wherein 0.2d1≤d3≤0.4d1.

5. The tire according to claim 1, wherein The transition layer (30) has a first transition surface (31) and a second transition surface (32) which are arranged relative to each other in the radial direction of the wire ring. The first transition surface (31) is arranged close to the wire ring relative to the second transition surface (32). The distance between the first transition surface (31) and the second transition surface (32) is the thickness of the transition layer (30). The thickness of the transition layer (30) is the same at all locations, and the maximum thickness of the transition layer (30) is equal to 0.05d1.

6. The tire according to claim 1, wherein The airtight layer (20) has a first airtight surface and a second airtight surface (22) arranged relative to each other in the radial direction of the wire ring, the first airtight surface is arranged close to the wire ring relative to the second airtight surface (22), the distance between the first airtight surface and the second airtight surface (22) is the thickness of the airtight layer (20), the thickness of the airtight layer (20) is the same at all locations, and the maximum thickness of the airtight layer (20) is equal to 0.05d1.

7. The tire according to claim 2, wherein: The transition layer (30) comprises a first transition section (33) and a second transition section (34) connected to each other, the first transition section (33) and the fourth bonding surface (14) are in close contact with each other, and along the distribution direction of the first bonding surface (11) and the second bonding surface (12), the distance between the end of the first transition section (33) away from the second transition section (34) and the first bonding surface (11) is the minimum distance between the first connecting surface and the first bonding surface (11).

8. The tire according to claim 7, characterized in that The extension direction of the second transition section (34) and the extension direction of the first transition section (33) can be arranged to intersect, and at least part of the first airtight surface and the second airtight surface (22) of the airtight layer (20) are connected to the second transition section (34) and the adhesive layer (10) respectively.

9. The tire according to claim 1, wherein The transition layer (30), the adhesive layer (10) and the airtight layer (20) together form a closed gap (3); an exhaust hole is provided on the second transition section (34); the exhaust hole is provided through the second transition section (34); the exhaust hole is communicated with the closed gap (3), so that the gas in the closed gap (3) is discharged from the exhaust hole.

10. The tire according to claim 2, wherein: The tire has two wire rings arranged opposite to each other along the axial direction of the tire, the projection point of the connecting line between the first bonding surface (11) and the fourth bonding surface (14) on a preset plane is a first projection point (4), the projection point of the axis of the wire ring on the preset plane is a second projection point (5), and the value range of the angle θ between the connecting line between the first projection point (4) and the second projection point (5) and the axial direction of the tire is 0<θ≤45°; wherein the preset plane is an axial cross-section of the wire ring.

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