Flexible flange with rim protection function

Abstract

The invention relates to the field of tire manufacturing, and discloses a flexible flange with a rim protection function, the flexible flange comprises a tire and a rim, a protection assembly is erected between the tire and the rim, the protection assembly comprises a flexible flange, the two ends of the flexible flange are connected with a connecting part on the rim and a tire bead part on the tire respectively, and the flexible flange is connected with the rim. The flexible flange is annularly arranged; reinforcing ribs are annularly arranged in the middle of the flexible flange, a buffering cavity is formed between the waist portion of the flexible flange and the reinforcing ribs, and compressed air is injected into the buffering cavity. According to the flexible flange, the bearing capacity of the rim 2 can be enhanced, the rim 2 can support larger weight, meanwhile, good toughness is kept, the buffering cavity can absorb and disperse impact and vibration from the road surface, vibration transmitted to a vehicle suspension system and a vehicle body is reduced, and therefore the driving comfort of a vehicle is improved.

Description

Technical Field

[0001] The present invention relates to the field of tire manufacturing, and particularly to a flexible flange with a rim protection function. Background Art

[0002] The wheel rim, commonly known as the rim, is a component that mounts and supports the tire on the periphery of the wheel and forms a wheel together with the wheel spokes. The wheel rim and the wheel spokes can be integral, permanently connected, or detachable. During daily driving, when passing through a large pit or a pothole with a sharp edge at a high speed, the tire collides with the pit. Since the tire does not have enough buffer space, the tire is severely squeezed, and finally the sidewall of the tire is cut and the tire bulges. In severe cases, it will burst, and the rim will also be deformed and worn. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to provide a flexible flange with a rim protection function to solve the problem that the rim is easily deformed and worn.

[0004] A flexible flange with a rim protection function according to the present invention includes a tire and a rim. A protection component is provided between the tire and the rim. The protection component includes a flexible flange. The two ends of the flexible flange respectively receive the connecting portion on the rim and the bead portion on the tire. The flexible flange is annularly arranged.

[0005] The flexible flange includes a first connecting portion, a waist portion connected to the first connecting portion, and a second connecting portion connected to the waist portion.

[0006] Reinforcing ribs are annularly arranged in the middle of the flexible flange. A buffer cavity is formed between the waist portion of the flexible flange and the reinforcing ribs. Compressed air is filled in the buffer cavity.

[0007] A flexible flange with a rim protection function according to the present invention, wherein the outer contour of the first connecting portion includes a first contact portion facing the outside in the radial direction of the tire, a second contact portion connected to the first contact portion, and a third contact portion, and also includes the outer surface and the first horizontal surface of the first connecting portion.

[0008] A flexible flange with a rim protection function according to the present invention, wherein the first contact portion is a convex arc shape, and its curvature is the same as the curvature of the inner surface of the sidewall portion.

[0009] A flexible flange with a rim protection function according to the present invention, wherein the second contact portion and the third contact portion extend from the outside in the radial direction of the tire to the end of the bead portion, and are generally C-shaped, and they cover the outside of the bead portion.

[0010] The present invention relates to a flexible flange with a rim protection function, wherein the contour of the waist is generally butterfly-shaped, and the two side waistlines are symmetrically arranged arcs, and the waist connects the first connecting portion and the second connecting portion.

[0011] The present invention relates to a flexible flange with a rim protection function, wherein the second connecting portion has the same contour as the first connecting portion and the opening directions are opposite.

[0012] The present invention relates to a flexible flange with a rim protection function, wherein the thickness of the first contact portion is M1, the thickness of the side wall portion is M2, M1 is twice M2, the distance between the outermost side of the second connecting portion in the tire radius direction and the axial outer end of the first connecting portion is M3, M3 is equal to M2, and M3 is 1.5 mm.

[0013] The present invention relates to a flexible flange with a rim protection function, wherein the radius ra of the buffer cavity is 1 mm, and the internal air pressure G1 therein is 0.8 times the standard internal pressure G.

[0014] The present invention relates to a flexible flange with a rim protection function, wherein the reinforcing rib is arranged in a regular trapezoid shape, its height is h, h is equal to M2, and the angle between the reinforcing rib and the first horizontal table surface is θ, and θ is 110°.

[0015] The present invention relates to a flexible flange with a rim protection function, wherein the maximum separation distance w in the tire radius direction between the side wall portion and the outer surface is 1.3 mm.

[0016] The difference between the flexible flange with a rim protection function of the present invention and the prior art lies in that a protection component is installed between the tire of the flexible flange with a rim protection function of the present invention and the rim. The flexible flange can enhance the load-bearing capacity of the rim 2, enabling it to support a greater weight, while maintaining good toughness. Moreover, the buffer cavity can absorb and disperse the impacts and vibrations from the road surface, reducing the vibrations transmitted to the vehicle suspension system and the body, thereby improving the driving comfort of the vehicle.

[0017] The following further describes a flexible flange with a rim protection function of the present invention with reference to the accompanying drawings. Description of the Drawings

[0018] Figure 1 is the tire meridian sectional view of a flexible flange with a rim protection function;

[0019] Figure 2 is Figure 1 the partial enlarged view of a flexible flange with a rim protection function shown;

[0020] Figure 3 is Figure 2Partial enlarged view.

[0021] Description of main components in the figure:

[0022] Tire - 1, Rim - 2, Protection assembly - 3, Flexible flange - 3a, Reinforcing rib - 4, Buffer cavity - 6a. Specific implementation mode

[0023] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0024] Please refer to Figures 1 to 3 , which specifically includes the following embodiments:

[0025] Embodiment 1:

[0026] A flexible flange with a rim protection function includes a tire 1 and a rim 2. A protection assembly 3 is installed between the tire 1 and the rim 2. The protection assembly 3 includes a flexible flange 3a. The two ends of the flexible flange 3a respectively connect to the connecting part 2b on the rim 2 and the bead part 1c on the tire 1;

[0027] The flexible flange 3a is annularly arranged. A reinforcing rib 4 is annularly arranged in the middle of the flexible flange 3a. A buffer cavity 6a is formed between the waist 6 of the flexible flange 3a and the reinforcing rib 4, and compressed air is filled in the buffer cavity 6a;

[0028] The flexible flange 3a includes a first connecting part 5, a waist 6 connected to the first connecting part 5, and a second connecting part 7 connected to the waist 6;

[0029] The first connecting part 5 is attached to the bead part 1c. Specifically, in this embodiment, the outer contour of the first connecting part 5 includes a first contact part 5a facing the outside in the radial direction of the tire, a second contact part 5b connected to the first contact part 5a, and a third contact part 5c, and also includes the outer surface 5d and the first horizontal surface 5e of the first connecting part 5;

[0030] The first contact portion 5a is an outwardly convex arc, and its curvature is the same as that of the inner side surface of the sidewall portion 1b, ensuring that when the tire 1 is subjected to force extrusion, the first contact portion 5a also bears the same pressure, avoiding stress concentration, and is equivalent to thickening the sidewall portion 1b. Among them, the thickness of the first contact portion 5a is M1, and the thickness of the sidewall portion 1b is M2. Preferably, M1 is the distance from the center point of the first contact portion 5a to the axial outer end 5re of the first connection portion 5, that is, the maximum thickness. The first contact portion 5a has the same curvature as the axial outer end 5re. M2 is the average thickness of the sidewall portion 1b. According to the above view, the greater the thickness of M1, the greater the load-bearing capacity, but the wind resistance will increase. Preferably, M1 is twice that of M2.

[0031] The second contact portion 5b and the third contact portion 5c extend from the outer side in the radial direction of the tire to the end of the bead portion 1c and are generally C-shaped, covering the outside of the bead portion 1c. The second contact portion 5b and the third contact portion 5c are the first support points after the tire 1 is deformed. The C-shaped contour surface can effectively increase the contact area and improve the sealing performance. The third contact portion 5c extends to the lowest end of the waist portion 6. The contour of the waist portion 6 is generally butterfly-shaped, and its two side waistlines are symmetrically arranged arcs. The waist portion 6 connects the first connection portion 5 and the second connection portion 7. When the tire 1 is subjected to extrusion, the rim 2 can bear the load through the rebound of the waist portion 6 and avoid contacting the ground. The second connection portion 7 has a tendency to move inward in the radial direction of the tire as a whole. The waist portion 6 plays a good role in promoting deformation and avoids the rim 2 moving outward in the axial direction of the tire and contacting the road shoulder or the high part of the pothole and being damaged.

[0032] The second connection portion 7 has the same contour as the first connection portion 5, but the opening direction is opposite. The second connection portion 7 covers the connection portion 2b. The distance between the outermost side in the radial direction of the tire of the second connection portion 7 and the axial outer end 5re of the first connection portion 5 is M3. Preferably, M3 is equal to M2. Specifically, M3 is 1-2 mm. The greater M3 is, the stronger the tendency of the waist portion 6 to move inward in the radial direction of the tire and the greater the elastic displacement variable. Therefore, M3 is preferably 1.5 mm.

[0033] The reinforcing rib 4 is arranged in a positive trapezoid shape, with a height of h, and h is equal to M2, which can maintain the same elastic modulus. And the angle between the reinforcing rib 4 and the first horizontal table surface 5e is θ, and θ is preferably 100° to 120°, specifically, θ is preferably 110°. The present invention can disperse the force transmission, and the elastic deformation accumulated due to the extrusion of the tire 1. The bottom area of the reinforcing rib 4 is larger than the top, and the pressure gradually increases, so that it will not undergo rapid elastic deformation and will be slowly released. The force transmission is linear, so that the second connecting portion 7 protects the rim 2 from rigid fracture. Moreover, the reinforcing rib 4 arranged in a positive trapezoid shape can adapt to various forms of loads such as tension, compression, bending, and torsion, and improve the performance of the structural member under complex stress conditions.

[0034] The radius ra of the buffer cavity 6a is preferably 1 to 2 mm, specifically 1 mm. As an elastic cavity, it has the ability to resist deformation, making the flexible flange 3a have the characteristics of shock absorption and comfort, equivalent to having an additional pneumatic tire, and further reducing noise. And during the force application process, the reinforcing rib 4 will be stretched and thinned. In extreme cases, after the tire 1 bursts, the buffer cavity 6a can act as the tire body for a period of time, avoiding the contact between the rim 2 and the ground in extreme environments and protecting it from damage. The buffer cavity 6a can increase the heat dissipation area of the rim 2, promote air flow, thereby improving the heat dissipation efficiency, reducing the temperature of the rim 2 and the side of the tire 1, and improving the driving safety of the vehicle.

[0035] The air pressure G1 of the air filled in the buffer cavity 6a is less than the standard internal pressure G. The standard internal pressure G is the air pressure specified for each tire in the specification system to which the tire 1 belongs. The standard state is the state in which the tire 1 is assembled on the standard rim 2, filled with the standard internal pressure and without load. In this specification, unless otherwise specified, the dimensions of each part of the flexible flange 3a are measured values in the standard state.

[0036] Preferably, the air pressure G1 is 0.8 times the standard internal pressure G. When the tire 1 contacts the ground, it acts as the main shock absorber, and the buffer cavity 6a acts as an auxiliary shock absorber. The buffer cavity 6a can absorb and disperse the impact and vibration from the road surface.

[0037] The tire 1 includes a tread portion 1a in contact with the road surface, a sidewall portion 1b extending from both ends of the tread portion 1a to the inner side in the tire radius direction, and a bead portion 1c connected to the sidewall portion 3 and embedded with a bead core.

[0038] The rim 2 includes a pair of support portions 2a for receiving the flexible flange 3a, and a pair of connecting portions 2b connected to the outer ends of the support portions 2a in the tire axial direction and extending outward in the tire radius direction.

[0039] Among them, the tire 1 also has existing structures such as a tire body and a belt layer, which will not be elaborated here.

[0040] The maximum separation distance w in the tire radial direction between the side wall portion 1b and the outer facade 5d is 1.5 mm or less, suppressing the flow of air passing through the surface of the flexible flange 3a between the side wall portion 1b and the outer facade 5d, and thus maintaining the air resistance. Thereby, the cooperation of the buffer cavity 6a and the maximum separation distance w in the present embodiment can reduce the resistance of the air flowing on the surface of the flexible flange 3a and improve the protection of the rim 2. Furthermore, when the maximum separation distance w is too small, during driving, the flexible flange 3a is in close contact with the side wall portion 1b, and the flexible flange 3a is damaged. The maximum separation distance w is preferably 1.3 mm.

Claims

1. A flexible flange with a rim protection function, characterized in that: including a tire and a rim, with a protection component installed between the tire and the rim. The protection component includes a flexible flange. The two ends of the flexible flange respectively connect to the connecting part on the rim and the bead part on the tire. The flexible flange is arranged in a ring shape; the flexible flange includes a first connecting part, a waist connected to the first connecting part, and a second connecting part connected to the waist; a reinforcing rib is arranged in a ring shape in the middle of the flexible flange. A buffer cavity is formed between the waist of the flexible flange and the reinforcing rib, and compressed air is filled in the buffer cavity.

2. The flexible flange with a rim protection function according to claim 1, characterized in that: The outer contour of the first connecting part includes a first contact part facing the outer side in the radial direction of the tire, a second contact part connected to the first contact part, and a third contact part. It also includes the outer surface of the first connecting part and a first horizontal surface.

3. The flexible flange with a rim protection function according to claim 2, characterized in that: The first contact part is a convex arc shape, and its curvature is the same as that of the inner surface of the sidewall part.

4. A flexible flange with a rim protection function according to claim 3, characterized in that: The second contact part and the third contact part extend from the outer side in the radial direction of the tire to the end of the bead part, and are roughly C-shaped, covering the outside of the bead part.

5. A flexible flange with a rim protection function according to claim 4, characterized in that: The contour of the waist is roughly butterfly-shaped, and its two side waistlines are symmetrically arranged arcs. The waist connects the first connecting part and the second connecting part.

6. A flexible flange with a rim protection function according to claim 5, characterized in that: The second connecting part has the same contour as the first connecting part, but the opening direction is opposite.

7. The flexible flange with a rim protection function according to claim 6, characterized in that: The thickness of the first contact part is M1, the thickness of the sidewall part is M2, M1 is twice that of M2. The distance between the outermost side of the second connecting part in the radial direction of the tire and the axial outer end of the first connecting part is M3, M3 is equal to M2, and M3 is 1.5 mm.

8. The flexible flange with a rim protection function according to claim 7, characterized in that: The radius ra of the buffer cavity is 1 mm, and the internal air pressure G1 is 0.8 times the standard internal pressure G.

9. The flexible flange with a rim protection function according to claim 8, characterized in that: The reinforcing rib is arranged in a regular trapezoid shape, its height is h, h is equal to M2, and the angle between the reinforcing rib and the first horizontal surface is θ, θ is 110°.

10. A flexible flange with a rim protection function according to claim 9, characterized in that: The maximum separation distance w in the radial direction of the tire between the sidewall part and the outer surface is 1.3 mm.

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