CN114312150A

CN114312150A - Non-inflatable tyre

Info

Publication number: CN114312150A
Application number: CN202210137945.2A
Authority: CN
Inventors: 刘晓玉; 朱亮亮; 徐婷
Original assignee: Ji Hua Laboratory
Current assignee: Ji Hua Laboratory
Priority date: 2022-02-15
Filing date: 2022-02-15
Publication date: 2022-04-12

Abstract

The disclosure relates to the technical field of tires, in particular to an inflation-free tire. The inflation-free tire comprises an inner ring, a support body, an outer ring and a tread which are coaxially arranged; the inner ring is sleeved on the hub; the supporting body is used for connecting the outer surface of the inner ring and the inner surface of the outer ring, and communicated pore channels are arranged at the connecting part of the supporting body and the outer ring and the side surface of the supporting body; the tread is arranged on the outer surface of the outer ring, and a longitudinal groove arranged along the circumferential direction of the tire is arranged on the tread; and the outer ring is provided with a drain hole for connecting the pore canal and the longitudinal pattern groove. According to the non-pneumatic tire, through the arrangement of the longitudinal groove, the drain hole and the pore canal on the tread, when the tire encounters a waterway, the accumulated water on the road surface sequentially passes through the longitudinal groove and the drain hole and then flows to the side surface of the tire from the pore canal, so that the drainage capacity and the wet skid resistance of the tire are remarkably improved.

Description

Non-inflatable tyre

Technical Field

The disclosure relates to the technical field of tires, in particular to an inflation-free tire.

Background

At present, most of tires in use are pneumatic tires, and the pneumatic tires bear the load of a vehicle by using high pressure of compressed air in the tires, so that the tires have good riding comfort. However, when the pneumatic tire is punctured, air leakage is easy to occur, the bearing capacity of the tire is weakened, the tire tread is subjected to aggravation or irregular wear, and tire burst is easy to occur in high-temperature weather, overlarge inflation pressure, long-time continuous running or impact, so that the running safety of the vehicle is affected. The non-pneumatic tire has no risk of air leakage and tire burst and is free of maintenance.

However, the existing non-pneumatic tire and pneumatic tire extrude the accumulated water on the road surface at the middle position of the tire to the side surface of the tire through the transverse groove on the tread, thereby preventing the tire from skidding, but the transverse groove can only play a role of preventing the skidding under the condition that a small amount of accumulated water exists on the road surface, and when the water of the road area is too deep, the situations of the tire skidding and the like still occur due to the restriction of the drainage capacity of the transverse groove.

Disclosure of Invention

In order to solve the technical problem, the present disclosure provides a non-pneumatic tire.

The present disclosure provides a non-pneumatic tire, comprising an inner ring, a support body, an outer ring and a tread, which are coaxially arranged;

the inner ring is sleeved on the hub;

the supporting body is used for connecting the outer surface of the inner ring and the inner surface of the outer ring, and communicated pore channels are arranged at the connecting part of the supporting body and the outer ring and the side surface of the supporting body;

the tread is arranged on the outer surface of the outer ring, and a longitudinal groove arranged along the circumferential direction of the tire is arranged on the tread;

and the outer ring is provided with a drain hole for connecting the pore canal and the longitudinal pattern groove.

Optionally, the support body is of a hollow structure.

Optionally, the support body includes a plurality of plate-shaped structures uniformly arranged along the circumferential direction of the tire, two ends of each plate-shaped structure are correspondingly connected with the inner ring and the outer ring, and a gap between two adjacent plate-shaped structures forms the duct.

Optionally, the drain hole includes a square hole and a circular hole.

Optionally, the axis of the drainage hole is perpendicular to the axis of the inner ring.

Optionally, the openings at two sides of the drainage hole are provided with chamfer or fillet structures.

Optionally, the tread is provided with a transverse groove, and the transverse groove extends from the middle position of the tread to the side wall of the tread.

Optionally, the tread comprises a plurality of tread strips, the plurality of tread strips being evenly arranged on the outer ring in an axial direction of the inner ring, a gap between two of the tread strips forming the longitudinal groove.

Optionally, the inner ring and/or the outer ring comprises a fibrous layer; the fiber layer is composed of continuous long fibers, and the continuous long fibers are selected from one or more of glass fibers, glass fiber filaments, carbon fibers, metal fibers, polyester, rayon, aromatic polyamide, nylon and cotton.

Optionally, the longitudinal grooves are of a wave-shaped groove-like structure.

Compared with the prior art, the technical scheme provided by the embodiment of the disclosure has the following advantages:

according to the inflation-free tire provided by the disclosure, through the arrangement of the longitudinal groove, the drain hole and the pore canal on the tire surface, when the tire encounters a road involved surface, the accumulated water on the road surface sequentially passes through the longitudinal groove and the drain hole and then flows to the side surface of the tire from the pore canal, so that the drainage capacity and the wet skid resistance of the tire are remarkably improved; meanwhile, the drainage mode can prevent the situation that the tread is worn in daily use to cause the shallow longitudinal groove, thereby reducing the drainage capacity.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and together with the description, serve to explain the principles of the disclosure.

In order to more clearly illustrate the embodiments or technical solutions in the prior art of the present disclosure, the drawings used in the description of the embodiments or prior art will be briefly described below, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without inventive exercise.

FIG. 1 is a schematic structural view of a support body for a portion of a non-pneumatic tire removal unit according to an embodiment of the present disclosure;

FIG. 2 is a schematic structural view of a non-pneumatic tire according to an embodiment of the present disclosure;

FIG. 3 is a schematic structural view of a transverse groove in a non-pneumatic tire according to an embodiment of the present disclosure;

FIG. 4 is a schematic structural diagram of a circular hole-shaped drain hole for a non-pneumatic tire according to an embodiment of the present disclosure;

FIG. 5 is a schematic structural view of a wave-shaped longitudinal groove in a non-pneumatic tire according to an embodiment of the present disclosure;

FIG. 6 is a schematic structural diagram of a fiber layer in a non-pneumatic tire according to an embodiment of the present disclosure;

fig. 7 is a schematic view of the structure of the longitudinal fibers and the transverse fibers of fig. 6.

Wherein, 1, an inner ring; 2. a support body; 3. an outer ring; 31. a drain hole; 4. a tread; 41. a longitudinal groove; 42. fetal noodles; 43. a transverse groove; 51. longitudinal fibers; 52. transverse fibers.

Detailed Description

In order that the above objects, features and advantages of the present disclosure may be more clearly understood, aspects of the present disclosure will be further described below. It should be noted that the embodiments and features of the embodiments of the present disclosure may be combined with each other without conflict.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present disclosure, but the present disclosure may be practiced in other ways than those described herein; it is to be understood that the embodiments disclosed in the specification are only a few embodiments of the present disclosure, and not all embodiments.

Based on this, the present embodiment provides a non-pneumatic tire, which can make accumulated water on a road surface flow to the side surface of the tire from the pore canal after being pressed by the tire through the arrangement of the longitudinal groove, the drainage hole and the pore canal on the tread, so as to significantly improve the drainage capacity and the wet skid resistance of the tire; meanwhile, the drainage mode can prevent the situation that the tread is worn in daily use to cause the shallow longitudinal groove, thereby reducing the drainage capacity. This is illustrated in detail by the following specific examples:

referring to fig. 1 and 2, the present embodiment provides a non-pneumatic tire including an inner ring 1, a support body 2, an outer ring 3, and a tread 4, which are coaxially disposed; the inner ring 1 is sleeved on the hub; the support body 2 is used for connecting the outer surface of the inner ring 1 and the inner surface of the outer ring 3, and communicated pore channels are arranged at the connecting part of the support body 2 and the outer ring 3 and the side surface of the support body 2; a tread 4 is arranged on the outer surface of the outer ring 3, and a longitudinal groove 41 arranged along the circumferential direction of the tire is arranged on the tread 4; the outer ring 3 is provided with a drain hole 31 for connecting the hole and the longitudinal groove 41.

Through the arrangement of the longitudinal grooves 41, the drain holes 31 and the pore canals on the tread 4, when the tire encounters a road surface, the accumulated water on the road surface sequentially passes through the longitudinal grooves 41 and the drain holes 31 and then flows to the side surface of the tire from the pore canals, so that the drainage capacity and the wet skid resistance of the tire are remarkably improved; at the same time, with this drainage method, it is possible to prevent the tread 4 from becoming shallower due to the longitudinal grooves 41 being worn in daily use, thereby reducing the drainage ability.

The outer ring 3 is made of an elastomer material including a polymer such as rubber, polyurethane, or resin.

In some embodiments, the support body 2 is a hollow structure.

In a further embodiment, the support body 2 comprises a plurality of plate-shaped structures uniformly arranged along the circumferential direction of the tire, two ends of each plate-shaped structure are correspondingly connected with the inner ring 1 and the outer ring 3, and a gap between two adjacent plate-shaped structures forms a pore channel; it should be noted that, the supporting body 2 may also be in other shapes having structures such as micro-holes, honeycomb, etc., as long as it can ensure sufficient supporting strength and help the tire to drain, and through the arrangement of the supporting body 2 with a hollow structure, it can ensure that the tire has good drainage and simultaneously does not reduce other performances of the tire.

As shown with continued reference to fig. 2 to 5, the drain hole 31 includes a square hole and a circular hole; wherein the round holes can reduce stress concentration and improve the durability of the outer ring 3 and the corresponding tread 4; the square holes can improve the hollowed-out area in the range of the longitudinal grooves 41 so as to improve the drainage. Other suitable shapes and sizes can be selected according to actual use conditions.

It should be understood that, by the arrangement of the support body 2, the tread 4 and the longitudinal grooves 41, the wet skid resistance of the tire can be improved without reducing the rolling resistance and wear resistance of the tire.

In a further embodiment, the axis of the drainage hole 31 is perpendicular to the axis of the inner ring 1; the arrangement enables the orientation of the drain hole 31 to be matched with the pressure direction of the tire to the ground, so that the accumulated water on the ground can conveniently directly pass through the drain hole 31 to a pore passage, and the accumulated water can be drained; it should be understood that the axial direction of the drain hole 31 may also have an angle with the radial direction of the inner ring 1, as long as the drain hole 31 can perform the draining action.

In some embodiments, the openings at both sides of the drainage hole 31 are provided with a chamfer or fillet structure; the chamfered structure can make the water and gas flow more smoothly when the drain hole 31 drains and exhausts water, thereby achieving the purpose of reducing noise.

Continuing to refer to fig. 3, the tread 4 is provided with a transverse groove 43, and the transverse groove 43 extends from the middle position of the tread 4 to the side wall of the tread 4; the arrangement of the transverse groove 43 enables the accumulated water in the middle of the tire to be rapidly discharged to the side surface of the tire through the extrusion of the tire, and meanwhile, the transverse groove 43 can also play a role in cutting a water film and improving the driving performance and the ground gripping performance of the vehicle.

In some embodiments, the tread 4 comprises a plurality of tread strips 42, the plurality of tread strips 42 being arranged uniformly on the outer ring 3 in the axial direction of the inner ring 1, the gap between two tread strips 42 forming a longitudinal groove 41; the mode of dividing the tread 4 into a plurality of independent tread strips 42 can reduce the total thickness of the tread 4, and when one of the tread strips 42 is damaged, the maintenance and the replacement are convenient, the maintenance cost in the later period is reduced, meanwhile, the tread strips 42 are more convenient to produce and process, and the production cost can be effectively reduced.

Referring to fig. 6 and 7, the inner ring 1 and/or the outer ring 3 includes a fiber layer; the fiber layer is composed of continuous long fibers, and the continuous long fibers are selected from one or more of glass fibers, glass fiber filaments, carbon fibers, metal fibers, polyester, rayon, aromatic polyamide, nylon and cotton; the fiber layer comprises longitudinal fibers 51 arranged along the circumferential direction and transverse fibers 52 arranged along the width direction of the tire, and the longitudinal fibers 51 and the transverse fibers 52 are arranged at positions avoiding the drain holes 31; the fiber layer may have a multi-layer fiber composite structure or a single-layer fiber structure.

With continued reference to FIG. 5, the longitudinal grooves 41 are of a wave-like groove-like configuration; wherein, the wave shape can be a curve shape or a broken line shape.

The specific implementation manner and implementation principle are the same as those of the above-mentioned embodiment, and can bring about the same or similar technical effects, and therefore, detailed descriptions are not repeated herein, and specific reference can be made to the description of the above-mentioned embodiment of the non-pneumatic tire.

It should be noted that, in this document, terms such as "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

The foregoing are merely exemplary embodiments of the present disclosure, which enable those skilled in the art to understand or practice the present disclosure. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the disclosure. Thus, the present disclosure is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. The non-pneumatic tire is characterized by comprising an inner ring (1), a support body (2), an outer ring (3) and a tread (4) which are coaxially arranged;

the inner ring (1) is sleeved on the hub;

the supporting body (2) is used for connecting the outer surface of the inner ring (1) and the inner surface of the outer ring (3), and communicated pore channels are arranged at the connecting part of the supporting body (2) and the outer ring (3) and the side surface of the supporting body (2);

the tread (4) is arranged on the outer surface of the outer ring (3), and a longitudinal groove (41) arranged along the circumferential direction of the tire is arranged on the tread (4);

and the outer ring (3) is provided with a drain hole (31) for connecting the pore canal and the longitudinal pattern groove (41).

2. The tyre according to claim 1, wherein the support body (2) is of hollowed-out construction.

3. The tyre according to claim 2, wherein the support body (2) comprises a plurality of plate-like structures arranged uniformly in the circumferential direction of the tyre, the plate-like structures being connected to the inner ring (1) and to the outer ring (3) at respective ends thereof, the gap between two adjacent plate-like structures forming the aperture.

4. The non-pneumatic tire according to claim 1, wherein the drain hole (31) includes a square hole and a circular hole.

5. The tyre according to claim 1, wherein the axis of the drainage holes (31) is perpendicular to the axis of the inner ring (1).

6. The non-pneumatic tire as claimed in claim 1, wherein the openings at both sides of the drainage hole (31) are provided with a chamfer or fillet structure.

7. The non-pneumatic tire according to claim 1, wherein the tread (4) is provided with transverse grooves (43), the transverse grooves (43) extending from a middle position of the tread (4) to the side walls of the tread (4).

8. The non-pneumatic tire according to claim 1, wherein the tread (4) comprises a plurality of tread strips (42), the plurality of tread strips (42) being arranged uniformly on the outer ring (3) in the axial direction of the inner ring (1), the gap between two tread strips (42) forming the longitudinal groove (41).

9. Tyre according to claim 1, characterized in that said inner ring (1) and/or said outer ring (3) comprise a layer of fibres.

10. The non-pneumatic tire according to claim 1, wherein the longitudinal grooves (41) are of a wave-like groove-like structure.