KR102421559B1 - Non-pneumatic tire capable of replacing tread easily - Google Patents

Abstract

One embodiment of the present invention includes a wheel, a main body forming a press-fit hole in the center, forming a frame, a tread attached to a surface forming a circumference of the main body, and disposed in the center of the main body, a button method Provided is a non-pneumatic tire with easy tread replacement including a center cap that moves the connected wheel as it is press-fitted into the press-in hole located in the inner direction by pressure from the outside and separates the tread.

Description

NON-PNEUMATIC TIRE CAPABLE OF REPLACING TREAD EASILY

The present invention relates to a non-pneumatic tire, and more particularly, to a non-pneumatic tire with easy tread replacement.

To replace a tire, the entire wheel must be removed from the vehicle, and then the tire must be removed from the wheel and replaced with a new tire. In the related art, as shown in (a) of FIG. 1, after removing the bolts fastened to the wheel in order to separate the tire to be replaced from the wheel, a tire changer as shown in (b) of FIG. 1 is used. Since the wheel and tire were separated using

The currently most used tire is a tubeless tire, which has been in use for about 110 years. Recently, with the development of airless or non-pneumatic tires, new tires A system is being built, and accordingly, the method of replacing tires is also changing.

An object of the present invention is to provide an environmentally friendly and sustainable non-pneumatic tire since only a tread part can be replaced without replacing the entire tire.

In addition, since the non-pneumatic structure (spoke) serves as the air layer of the existing tire, the side wheel of the existing tire is not required, so the separated tread can be reprocessed, it is effective for recycling, and the raw material required for processing can be significantly reduced. is to provide

The technical problems to be achieved by the present invention are not limited to the technical problems mentioned above, and other technical problems not mentioned can be clearly understood by those of ordinary skill in the art to which the present invention belongs from the description below. There will be.

In order to achieve the above technical problem, an embodiment of the present invention includes a wheel, a main body forming a press-fitting hole in the center, forming a frame, a tread attached to a surface forming a periphery of the main body, and the main body It is disposed in the center of the body and moves the connected wheel as it is press-fitted into the press-in hole located in the inner direction by pressing from the outside in a button manner, and it is easy to replace the tread including a center cap for separating the tread One non-pneumatic tire is provided.

In an embodiment of the present invention, a spoke formed on the edge of the main body and serving as a structural support between the tread and the center cap press-fitted into the press-in hole may be further included.

In an embodiment of the present invention, the wheel includes a second wheel member including a fastening protrusion member formed on one side for fastening with the center cap and a fastening groove member formed on the other side, and one end of the second wheel The first wheel member is fastened through the fastening groove member of the member, and the other end is in contact with the one end region of the tread.

In an embodiment of the present invention, the center cap includes a pressing part to which pressure from the outside is applied, and a fastening insertion groove formed on the rear surface of the pressing part, into which the fastening protrusion member of the second wheel member can be inserted, , a movement inducing part for guiding the movement of the second wheel member and the first wheel member, and a central shaft member that forms an axis of the center cap and is inserted into the press-in hole of the main body by the pressure applied to the pressing part. may include

In an embodiment of the present invention, a spring positioned in a region of the front surface of the main body extending from one side of the second wheel member and positioned at the rear surface of the movement inducing part, a spring formed to surround the central shaft member may include more.

In an embodiment of the present invention, in the initial state, the one end region of the tread is fixed to the surface forming the circumference of the main body by the other end of the first wheel member, and is arranged in a press-fitting operation of the center cap. Accordingly, as the first wheel member moves in the direction in which the press-in hole is located, the one end area of the tread protrudes forward, so that the first wheel member may be separated from the main body.

In an embodiment of the present invention, at least a portion of the first wheel member may be disposed to overlap at least a portion of the front surface of the slope hole according to the press-in operation of the center cap, so that the overall length of the wheel may be reduced.

In an embodiment of the present invention, it is disposed on the inside of the tread, further comprising a spoke formed on the edge of the main body, and the spoke is located inside the tread as the tread is separated from the main body can be replaced

According to an embodiment of the present invention, since only the tread part can be replaced without replacing the entire tire, it is environmentally friendly and sustainable. In addition, since the non-pneumatic structure (spoke) acts as an air layer of the existing tire, the side wheel of the existing tire is not required, so the separated tread can be reprocessed, it is effective for recycling, and the raw material required for processing can be significantly reduced.

It should be understood that the effects of the present invention are not limited to the above-described effects, and include all effects that can be inferred from the configuration of the invention described in the description or claims of the present invention.

1 is a reference diagram illustrating a conventional tire replacement method.
2 is a reference diagram illustrating a conventional replacement method for replacing a tread portion of a non-pneumatic tire.
3 is a view showing a non-pneumatic tire with easy tread replacement according to an embodiment of the present invention.
4 is a view showing a cross-sectional side view of a non-pneumatic tire according to an embodiment of the present invention.
5 is a diagram illustrating in more detail a non-pneumatic tire according to an embodiment of the present invention.
6 is a view illustrating a change of a wheel according to operation of a non-pneumatic tire according to an embodiment of the present invention.
7 is a view illustrating a tread compound pattern according to an embodiment of the present invention.
8 is a view showing an operation change for replacing a tread of a non-pneumatic tire according to an embodiment of the present invention.

Hereinafter, the present invention will be described with reference to the accompanying drawings. However, the present invention may be embodied in several different forms, and thus is not limited to the embodiments described herein. And in order to clearly explain the present invention in the drawings, parts irrelevant to the description are omitted, and similar reference numerals are attached to similar parts throughout the specification.

Throughout the specification, when a part is "connected (connected, contacted, coupled)" with another part, it is not only "directly connected" but also "indirectly connected" with another member interposed therebetween. "Including cases where In addition, when a part "includes" a certain component, this means that other components may be further provided without excluding other components unless otherwise stated.

The terms used herein are used only to describe specific embodiments, and are not intended to limit the present invention. The singular expression includes the plural expression unless the context clearly dictates otherwise. In the present specification, terms such as “comprise” or “have” are intended to designate that a feature, number, step, operation, component, part, or combination thereof described in the specification exists, but one or more other features It is to be understood that this does not preclude the possibility of the presence or addition of numbers, steps, operations, components, parts, or combinations thereof.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

A non-pneumatic tire with easy tread replacement according to an embodiment of the present invention, which will be described below, is a non-pneumatic tire in which air is not injected, unlike a conventional pneumatic tire in which air is compressed and inflated, and the tread in contact with the ground Except for the (tread) part, it can be used for a long time. Accordingly, it is good for long-term use through the re-tread method in which only the tread portion of the non-pneumatic tire is replaced.

As shown in FIG. 2, the currently used re-treading technology proceeds by grinding the tread remaining in the tire to flatten the surface and then rolling up the tread, while replacing the tread according to the embodiment of the present invention The easy-to-use non-pneumatic tire is provided with a structure in which the round tread can be replaced and inserted immediately without additional bonding and processing.

3 is a view showing a non-pneumatic tire with easy tread replacement according to an embodiment of the present invention.

A non-pneumatic tire 10 as shown in FIG. 3 according to an embodiment of the present invention includes a main body 100 , a wheel 200 , a center cap 300 , a tread 400 , and a spoke 500 . may be included.

The non-pneumatic tire 10 of the present invention is provided with a tread 400 in the form of enclosing the shock mitigating structure mounted on the main body 100, which is coupled in the same form as a cog wheel, so that the vehicle is driven while the vehicle is driving. Disassembly of the tread 400 is possible because it is implemented in the form of sliding only to the side without departing in the direction. Normally, the wheel 200 leading from the center cap 300 wraps around the side of the tread 400 to prevent separation, and when the center cap 300 is pressed when replacing, all the wheels 200 are gathered inward and the tread 400 It is a principle that can separate the tread 400 from the main body 100 by creating a space in which the is separated.

4 is a view showing a cross-sectional side view of a non-pneumatic tire according to an embodiment of the present invention.

Referring to FIGS. 3 and 4 , the main body 100 according to the embodiment of the present invention is a configuration that forms the frame of the non-pneumatic tire 10 , and the press-in hole 110 may be formed in the center portion. According to the present embodiment, as shown in FIG. 4 , the main body 100 may be formed in a slope shape that is curved concavely from the edge toward the portion in which the central press-in hole 110 is located.

In addition, the wheel 200 is a configuration disposed on the front surface of the main body 100 , and may include a first wheel member 210 and a second wheel member 230 .

The first wheel member 210 according to the present embodiment may be positioned such that one end is connected to the second wheel member 230 and the other end is in contact with one end area of the tread 400 .

In addition, the second wheel member 230 is disposed between the center cap 300 and the first wheel member 210 , and as shown in FIG. 4 , the front area of the main body 100 is curved in a concave shape. can be located in

According to a more specific embodiment, the second wheel member 230 includes a fastening protrusion member 231 formed on one side for fastening with the center cap 300 and a second fastening protrusion member 231 for fastening with the first wheel member 210 . It may be configured to include a fastening groove member 233 formed on the other side of the wheel member 230 .

In addition, the first wheel member 210 may have a fastening protrusion 211 that is inserted and fastened into the fastening groove member 233 of the second wheel member 230 as described above and formed at one end thereof. In addition, the other end of the first wheel member 210 may be implemented so as to be in contact with an area of one end of the tread 400 .

5 is a diagram illustrating in more detail a non-pneumatic tire according to an embodiment of the present invention.

As described above, a plurality of wheels 200 according to an embodiment of the present invention including the first wheel member 210 and the second wheel member 230 may be formed on the front surface of one non-pneumatic tire 10 . And, according to FIG. 5, which is an embodiment of the present invention, the six wheels 200 on the front surface of the non-pneumatic tire 10 may be implemented to be spaced apart from each other by a predetermined distance. However, it is apparent that the number of wheels 200 is not limited thereto, and can be freely changed and designed by those skilled in the art.

Reference is again made to FIG. 4 .

The center cap 300 according to the embodiment of the present invention is disposed in the central portion of the main body 100, and is press-fitted into the press-in hole 110 located in the inner direction by pressing from the outside in a button manner. Accordingly, the connected wheel 200 may be moved, and thus the tread 400 may be separated.

The center cap 300 of the present invention may include a pressing unit 310 , a movement inducing unit 330 , and a central shaft member 350 .

The pressing unit 310 is a configuration that receives pressure from the outside. For example, when a user wants to replace the tread 400 and the spoke 500 of the non-pneumatic tire 10 as in the present invention, the pressing unit 310 . By pressing , the tread can be replaced as the center cap 300 is inserted into the press-in hole 110 .

The movement guide part 330 is formed on the rear surface of the pressing part 310 and may include a fastening insertion groove A into which the fastening protrusion member 231 of the second wheel member 230 can be inserted.

And, the central shaft member 350 forms the central axis of the center cap 300, and is located at the center of the main body 100 as shown in (b) of FIG. 4 by the external pressure applied to the pressing part 310. It may be inserted into the formed press-in hole 110 .

The tread 400 according to the embodiment of the present invention may be attached to the surface of the main body 100 forming the circumference of the main body 100 .

The spoke 500 according to the embodiment of the present invention is formed on the edge of the main body 100 , as shown in FIGS. 3 and 4 , and is press-fitted into the tread 400 and the press-in hole 110 . It may serve as a structural support between the caps 300 .

The spokes 500 according to an embodiment are formed by arranging a plurality of spokes 500 radially extending radially with respect to the press-in hole 110 in a circumferential direction. It is disposed at the outer end and may be provided in a form in which a plurality of spokes 500 are integrally connected and supported by a rim.

The tread 400 of the non-pneumatic tire 10 of the present invention forms a circumference of the main body 100 by the other end of the first wheel member 210 in the initial state, as shown in FIG. 4A . It is disposed in a fixed state on the surface, and when the user presses the pressing part 310 of the center cap 300, the first wheel according to the press-in operation of the center cap 300 as shown in FIG. 4(b). As the member 210 moves in the direction in which the press-in hole 110 is located, one end area of the tread 400 protrudes forward, so that the tread 400 is separated from the main body 100 and the wheel 200 . .

Referring to FIG. 4 , the non-pneumatic tire 10 according to the embodiment of the present invention may further include a spring 600 . The spring 600 may be located in one area of the front surface of the main body 100 extending from one side of the second wheel member 230 . More specifically, it is located on the rear surface of the movement guide part 330 , and may be formed to surround the central shaft member 350 of the center cap 300 .

The spring 600 as described above usually supports the pressing part 310, the movement inducing part 330, and the wheel 200 as shown in FIG. When external pressure is applied to the pressing unit 310 , the volume is reduced by the elastic force, so that the pressing unit 310 and the movement inducing unit 330 can move to the region where the spring 600 was originally located.

Referring to (b) of FIG. 5 , as the user presses the pressing unit 310 in the movement inducing unit 330 , the volume of the spring 600 is reduced and thus the center cap 300 is inserted into the press-in hole 110 . while being inserted into the , the second wheel member 230 fastened through the fastening protrusion member 231 is moved in the direction of the press-in hole 110 , and accordingly, the first wheel member connected to the second wheel member 230 . It moves in the center direction of the main body 100 up to 210 . Accordingly, the tread 400 may be separated from the main body 100 and the wheel 200 by the movement of the first wheel member 210 that is in contact with one end of the tread 400 .

In the non-pneumatic tire 10 according to the embodiment of the present invention, the tread 400 is separated from the main body 100 and the wheel 200 according to the operation principle as described above, so that the user can easily operate the tread 400 . There is an advantage that not only can be replaced, but also the spokes 500 located inside the tread 400 can be conveniently replaced together.

6 is a view illustrating a change in a wheel for each operation of a non-pneumatic tire according to an embodiment of the present invention.

6, (a) is a view showing the wheel 200 and the center cap 300 in an initial state in which no pressure is applied to the center cap 300, (b) is a center cap It is a view showing the appearance of the wheel 200 and the center cap 300 in a state in which external pressure is applied to ( 300 ), (c) is the center of the center cap 300 by the pressure applied to the center cap 300 . It is a view showing the appearance of the wheel 200 and the center cap 300 according to a state in which the shaft member 350 is completely press-fitted into the press-in hole 110 formed in the center of the main body 100 .

First, referring to FIG. 6A , the first wheel member 210 and the second wheel member 230 of the wheel 200 are connected to the fastening protrusion 211 of the first wheel member 210 and the second wheel. While the fastening groove member 233 of the member 230 is fastened, it may be formed to cover the entire front surface of the main body 100 .

And referring to FIG. 6 (b) in which the pressing part 310 is in a state in which external pressure is applied, the fastening protrusion 211 of the first wheel member 210 as the center cap 300 is press-fitted in the inward direction. With the fastening groove member 233 of the second wheel member 230 being fastened to each other, one end of the first wheel member 210 on which the fastening protrusion 211 is positioned overlaps the front part of the second wheel member 230 . It can be arranged so as to

Referring to FIG. 6 (c) in which the central shaft member 350 of the center cap 300 is completely press-fitted into the press-in hole 110, the center cap 300 is completely press-fitted in the inward direction, so that the first wheel While the fastening protrusion 211 of the member 210 and the fastening groove member 233 of the second wheel member 230 are fastened, the first wheel member 210 covers most of the front surface of the second wheel member 230 . In order to do so, the first wheel member 210 and the second wheel member 230 may be implemented in an overlapping form.

For example, only the tread 400 may be separated in a state as shown in (b) of FIG. 6, which is an embodiment, and not only the tread 400 but also the spokes 500 may be separated in a state as shown in FIG. 6(c). .

As described above, the wheel 200 according to the embodiment of the present invention is the wheel 200 formed by the first wheel member 210 and the second wheel member 230 according to the press-in operation of the center cap 300 . It can be deformed so that the overall length of the is gradually reduced.

7 is a view illustrating a tread compound pattern according to an embodiment of the present invention.

A tread compound refers to a material used for a tread part, and the tread 400 of the present invention may be implemented to have various tread compound patterns as shown in FIGS. 7A and 7B. have.

8 is a view showing an operation change for replacing a tread of a non-pneumatic tire according to an embodiment of the present invention.

Figure 8 (a) is a state of the initial state of the non-pneumatic tire of the present invention, Figure 8 (b) is a state of the non-pneumatic tire in the initial state without the tread 400, Figure 8 (c) is The center cap 300 is a non-pneumatic tire according to a state in which the center cap 300 is completely press-fitted into the press-in hole 110 , and FIG. It is a diagram showing a state in which 500 is separated.

The non-pneumatic tire 10 of the present invention does not require electric power to move the plurality of wheels 200 and is driven by an external physical force. However, the spring 600 located inside the center cap 300 pushes the center cap 300 outward so that opening and closing does not occur while driving, and is pressed only when necessary to replace the tread 400 .

The non-pneumatic tire 10 of the present invention is an eco-friendly and sustainable tire because only a portion of the tread 400 can be replaced without replacing the entirety. Since the non-pneumatic structure (spoke) acts as an air layer of the existing tire, the side wheel of the existing tire is not required, so the separated tread can be reprocessed and recycled, and the raw material required for processing can be significantly reduced.

Since the non-pneumatic tire 10 according to the present invention is not a pneumatic type, it is not necessary to separately provide an air pressure measuring sensor. On the other hand, if a sensor for measuring temperature, acceleration, and tread depth is provided, the sensor can be attached to the inside of the spoke on the tread and the grounded part, which improves the accuracy of the measured data value by locating it close to the road and grounding. It is attached to the inside of the spoke, so it is easy to maintain and repair the sensor.

The foregoing description of the present invention is for illustration, and those of ordinary skill in the art to which the present invention pertains can understand that it can be easily modified into other specific forms without changing the technical spirit or essential features of the present invention. will be. Therefore, it should be understood that the embodiments described above are illustrative in all respects and not restrictive. For example, each component described as a single type may be implemented in a dispersed form, and likewise components described as distributed may also be implemented in a combined form.

The scope of the present invention is indicated by the following claims, and all changes or modifications derived from the meaning and scope of the claims and their equivalents should be construed as being included in the scope of the present invention.

10: non-pneumatic tire
100: main body
110: press-in hole
200: wheel
210: first wheel member
230: second wheel member
300: center cap
310: pressurized part
330: movement guide unit
350: central axis member
400: tread
500: spoke

Claims (8)

wheel and
A main body forming a press-in hole in the center and forming a frame;
a tread attached to the surface forming the circumference of the main body;
A tread disposed in the center of the main body and including a center cap for moving the connected wheel and separating the tread as it is press-fitted into the press-in hole located in the inward direction by pressing from the outside in a button manner Easy-to-replace non-pneumatic tires.
According to claim 1,
The non-pneumatic tire that is formed on the edge of the main body and further comprises a spoke that serves as a structural support between the tread and the center cap press-fitted into the press-in hole.
According to claim 1,
The wheel is
a second wheel member including a fastening protrusion member formed on one side for fastening with the center cap and a fastening groove member formed on the other side;
and a first wheel member having one end fastened through the fastening groove member of the second wheel member and the other end contacting the one end region of the tread.
4. The method of claim 3,
The center cap is
A pressurizing part to which pressure from the outside is applied, and
a movement inducing part formed on the rear surface of the pressing part and including a fastening insertion groove into which the fastening protruding member of the second wheel member can be inserted, and guiding the movement of the second wheel member and the first wheel member;
and a central shaft member that forms an axis of the center cap and is inserted into the press-in hole of the main body by the pressure applied to the pressing unit.
5. The method of claim 4,
The tread, which is located in a region of the front surface of the main body extending from one side of the second wheel member, is located at the rear side of the movement guide part, and further includes a spring formed to surround the central shaft member. Easy-to-replace pneumatic tires.
4. The method of claim 3,
In the initial state, the one end region of the tread is disposed in a state of being fixed to the surface forming the circumference of the main body by the other end of the first wheel member,
Easy to replace a tread, characterized in that the first wheel member moves in a direction in which the press-in hole is located according to the press-in operation of the center cap, and is separated from the main body as one end area of the tread protrudes forward One pneumatic tire.
4. The method of claim 3,
According to the press-fitting operation of the center cap, at least a portion of the first wheel member is disposed to overlap at least a portion of the front surface of the second wheel member, so that the overall length of the wheel is reduced. Fill in tires.
7. The method of claim 6,
Doedoe disposed on the inside of the tread, further comprising a spoke formed on the edge of the main body,
A non-pneumatic tire with easy tread replacement, characterized in that the spokes located inside the tread can be replaced as the tread is separated from the main body.

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