阅读说明：本技术 轮胎结构体以及其结合结构 (Tire structure and connection structure thereof ) 是由 李荣起 于 2018-11-06 设计创作，主要内容包括：本发明涉及一种轮胎结构体,其可以与轮缘相结合,所述胎结构体,包括：内胎、设置于所述内胎上的胎圈芯、及设置于所述胎圈芯上的外胎,所述胎圈芯包括：位于所述内胎的水平长径的上方的主胎体、及位于下方的翼部,所述翼部的下端可布置于所述轮缘上面的下方。(The present invention relates to a tire structure which can be combined with a rim, the tire structure comprising: inner tube, set up in bead core on the inner tube and set up in cover tire on the bead core, the bead core includes: the tire comprises a main tire body positioned above the horizontal long diameter of the inner tire and a wing part positioned below the main tire body, wherein the lower end of the wing part can be arranged below the upper surface of the wheel rim.)

1. A tire coupling structure formed by coupling a tire structure body and a rim including two hooks, wherein the tire structure body includes:

an inner tube;

a bead core disposed on the inner tube; and

an outer tire arranged on the bead core,

wherein the bead core comprises a main tire body positioned above the horizontal major diameter of the inner tube and a wing positioned below the horizontal major diameter of the inner tube, the lower end of the wing is arranged below the upper surface of the rim,

a ratio of a horizontal major diameter (A) of the tube to a distance (B) between the hooks when the tube is inflated is 0.75 or less,

the ratio of the length (C) from the upper end of the tube to the boundary corresponding to the horizontal major axis to the length (D) from the boundary to the lower end of the tube is 3.3 or less.

2. The tire bonding structure of claim 1, wherein a compressibility of a main carcass thickness of the bead core upon inflation of the inner tube is 10% to 50% or less.

3. The tire bonding structure of claim 1, wherein the main carcass compressed thickness upon inflation of the inner tube comprises a length range of 70% or less of a horizontal outer diameter of the tire structure.

4. The tire bonding structure of claim 1, wherein the Shore C hardness of the bead core is 20 to 80.

5. The tire bonding structure of claim 1, wherein the ratio of the shore C hardness of the bead core and the outer tire is 0.2 to 1.

6. The tire coupling structure of claim 1, wherein the thickness of the wing at the contact of the rim hook and the tire casing is 3% to 30% of the distance between the two hooks of the rim.

7. The tire coupling structure according to claim 1, wherein an angle formed by a perpendicular extension of the wall surface of the rim and a tangent line at a contact point thereof with the tire casing in a state where the inner tube is inflated is in a range of 20 ° to 80 °.

8. The tire bonding structure according to claim 1, wherein a contact portion with which all of the outer tire, the bead core, and the inner tire are in contact is present in a lower space of an upper face of the rim.

9. A bicycle comprising the tire coupling structure of claim 1.

Technical Field

The present invention relates to a tire structure and a coupling structure thereof.

Background

Recently, as the awareness of environmental protection and low-carbon exercise is improved, the popularization of urban bicycles, mountain bicycles, and the like has spread widely. A general air tire with an inner tube has a high possibility of being punctured, and air injected into the inner tube leaks with time and has to be re-injected. In particular, when a tire is broken by a nail or such sharp object, the driving ability of the tire may be lost, which causes a very dangerous accident.

To solve the problems, recently, solid tires (solid tires) are increasingly required instead of air injection tires. A solid tire is made of only rubber without injecting air, and thus can be used for a long time as compared with an air injection type tire, which is attached (or mounted, fixed) to a rim by fixing pins (also referred to as a rim fixing portion, a coupling unit, etc.), and has an advantage of not being punctured.

However, the solid tire has a disadvantage that the solid tire is heavier than the air-injected tire and has a large rotation resistance because the inside of the solid tire is made of only rubber.

Disclosure of Invention

Technical problem

The present invention has been made to solve the above-described problems of the prior art, and an object of the present invention is to provide a tire structure and a coupling structure thereof.

However, the technical problem to be achieved by the embodiments of the present invention is not limited to the above technical problem, and other technical problems may be present.

Technical scheme

As a means for achieving the above technical object, according to a first aspect of the present invention, there is provided a tire structure which can be coupled to a rim, the tire structure comprising: the inner tube, set up in bead core on the inner tube and set up in cover tire on the bead core, the bead core is including being located the main tyre body of the top of the horizontal major axis of inner tube and the alar part that is located the below, the lower extreme of alar part arrange in the below above the rim.

According to an embodiment of the present invention, when the inner tube is expanded, the compression ratio of the main carcass thickness of the bead core may be 10% to 50% or less, but is not limited thereto.

According to an embodiment of the present invention, when the inner tube is expanded, the main tire body is compressed to a thickness in a length range including 70% or less of a horizontal outer diameter of the tire structure, but not limited thereto.

According to an exemplary embodiment of the present invention, the shore C hardness of the bead core may be 20 to 80, but is not limited thereto.

According to an embodiment of the present invention, the shore C hardness ratio of the bead core and the outer tire can be, but is not limited to, 0.2 to 1.

The second side of the present invention provides the tire structure and a tire coupling structure in which a rim including two hooks is coupled.

According to an embodiment of the present invention, when the tube is inflated, a ratio (B/a) of a horizontal major axis a of the tube to a distance B between the hooks may be 0.75 or less, and a ratio (D/C) of a length C from an upper end of the tube to a boundary corresponding to the horizontal major axis to a length D from the boundary to a lower end of the tube may be 3.3 or less.

According to an embodiment of the present invention, the thickness of the wing part at the contact portion of the hooks of the rim and the tire casing may be 3% to 30% of the distance between the two hooks of the rim, but is not limited thereto.

According to an embodiment of the present invention, in the inflated state of the tire tube, an angle formed by a vertical extension of the wall surface of the rim and a tangent line at a contact point of the vertical extension and the tire casing may be in a range of 20 ° to 80 °, but is not limited thereto.

According to an embodiment of the present invention, there may be a contact portion in the lower space of the upper face of the rim, which the tire casing, the bead core, and the inner tube all contact, but not limited thereto.

The invention of claim 3 provides a bicycle comprising the tire coupling structure.

The means for solving the problems are merely examples and are not to be construed as limiting the present invention. In addition to the above-described exemplary embodiments, there may be additional embodiments to those illustrated in the drawings and described in the detailed description of the invention.

Effects of the invention

According to the tire structure of the present invention, since the inner tire has the bead core, it is possible to prevent the tire from being damaged and punctured by an external stimulus such as a sharp nail on the ground contact surface during running. Further, since the tire structure includes the inner tube, the tire structure has advantages of light weight and excellent rolling resistance as compared with a conventional solid tire.

The existing tire of triple structure is completely free from problems caused by the shape of the bead core disposed on the inner tube. The above problem is, for example, that the inner tube is caught between the bead core and the outer tube when the tire rolls during running, and the inner tube is torn to cause a tire burst. The tire structure of the present invention solves the above-described problems by disposing the wing portion of the bead core below the upper face of the rim.

According to an embodiment of the present invention, since the tire structure has a shape in which a ratio (B/a) of a horizontal major axis a of the tire to a distance B between hooks when the tire inflates is 0.75 or less, and a ratio (D/C) of a length C from an upper end of the tire to a boundary corresponding to the horizontal major axis to a length D from the boundary to a lower end of the tire is 3.3 or less, the tire structure can be driven by a run flat tire when the tire bursts due to an external force applied to a side surface of the tire structure.

However, the effects obtainable by the present invention are not limited to the above-described effects, and other effects may be present.

Drawings

Fig. 1 is a diagram showing a tire structural body according to an embodiment of the present invention.

Fig. 2 is a diagram showing a tire structural body according to a comparative example of the present invention.

Fig. 3 is a graph showing the rolling resistance and the running distance of the compression rate of the main carcass of the tire structure according to the embodiment of the present invention.

Fig. 4 (a) is a diagram showing a tire structure according to an embodiment of the present invention before main carcass compression, and fig. 4 (B) is a diagram showing a tire structure according to an embodiment of the present invention after main carcass compression.

Fig. 5 is a graph showing rolling resistance and vibration displacement of the hardness of a bead core of a tire structural body according to an embodiment of the present invention.

Fig. 6 is a view showing a tire coupling structure according to an integrated example of the present invention.

Fig. 7 is a view showing a tire coupling structure according to an integrated example of the present invention.

Fig. 8 is a view showing a tire coupling structure according to an integrated example of the present invention.

Fig. 9 is a view showing a tire coupling structure according to an integrated example of the present invention.

Detailed Description

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art to which the present invention pertains can easily carry out the invention.

However, the present invention may be embodied in different forms and is not limited to the embodiments described herein. In the drawings, for the purpose of clearly explaining the present invention, portions not related to the present description are omitted, and like reference numerals are given to like portions throughout the specification.

Throughout the specification of the present invention, when a certain portion is "connected" to another portion, it is intended to include not only the case of "directly connecting" but also the case of "electrically connecting" or "indirectly connecting" with another element interposed therebetween.

In the present invention, when a certain member is located at "upper", "lower" and "lower" positions of other members throughout the specification, the case where the certain member is in contact with other members is included, and the case where other members are present between the two members is also included.

In the case where a certain component is included in a certain part of the specification of the present invention, unless otherwise specified, it is intended that the component includes not only other components but also other components.

The terms of degree such as "about", "substantially" and the like used throughout the specification are used in the sense of referring to the numerical value or a meaning close to the numerical value when inherent manufacturing and material tolerance errors are disclosed in the meaning, and are used in order to help understanding the present invention and prevent an accurate or absolute numerical value from being illegally used by an illegal person to refer to the disclosure. The term "step" or "step" used throughout the description of the present invention does not mean "step for".

Throughout the specification of the present invention, the term of combination of these included in the expression of markush form means that one or more mixtures or combinations selected from the group consisting of the structural elements described in the expression of markush form include one or more selected from the group consisting of the structural elements described above.

Throughout the description of the present invention, the description of "a" and/or "B" means "a or B" or "a and B".

The tire structure and the coupling structure thereof of the present invention will be specifically described below with reference to the embodiments and examples and the accompanying drawings. The invention is not limited to these embodiments and examples and the drawings.

A first aspect according to the present invention relates to a tire structure which is combinable with a rim, the tire structure comprising: the inner tube, set up in bead core on the inner tube and set up in cover tire on the bead core, the bead core is including being located the main tyre body of the horizontal major axis top of inner tube and the alar part that is located the below, the lower extreme of alar part arrange in the below above the rim.

Fig. 1 shows a diagram of a tire structure according to an embodiment of the present invention.

Specifically, fig. 1 shows a plan view of a tire structure 100 according to an embodiment of the present invention.

Referring to fig. 1, a tire structure 100 capable of being combined with a rim 200 includes an inner tube 110, a bead core 120 disposed on the inner tube 110, and an outer tire 130 disposed on the bead core 120, wherein the bead core 120 includes a main tire body 121 located above a horizontal major axis of the inner tube and a wing 122 located below the main tire body, and a lower end of the wing 122 is disposed below an upper surface of the rim 200.

The inner tube 110 may be a generally used commercial inner tube, but is not limited thereto. For example, the material of the inner tube may be, but is not limited to, synthetic rubber, natural rubber, and a combination thereof.

The bead core 120 may be a material selected from the group consisting of, for example, natural rubber, synthetic rubber, thermosetting resin, thermoplastic resin, and combinations thereof, but is not limited thereto.

According to the tire structure 100 of an embodiment of the present invention, since the bead core 120 is provided on the inner tube 110, the tire can be prevented from being damaged and blown out by an external stimulus such as a sharp nail on a ground contact surface during running. Further, since the tire structure 100 includes the inner tube 110, it has advantages of light weight and excellent rolling resistance as compared with a conventional solid tire.

Fig. 2 is a diagram of a tire structure according to a comparative example of the present invention.

Specifically, fig. 2 is a diagram showing a problem point occurring when the wing portion 122 of the tire structural body 100 is not present or the lower end of the wing portion 122 is disposed above the rim.

Referring to fig. 2, in the case where the wing portion 122 is not present or the lower end of the wing portion 122 is disposed above the rim, when the tire structure 100 rolls during running, the inner tube 110 is caught between the main tire body 121 and the outer tire 130 (a portion indicated by a circle in fig. 2), and the inner tube 110 is torn, and a tire burst may occur.

The present invention is described in more detail by the following examples, which are provided for illustration only and do not limit the scope of the present invention.

[ example 1]