WO2011021834A2

WO2011021834A2 - Vehicle wheel having multiple rims and multiple tires

Info

Publication number: WO2011021834A2
Application number: PCT/KR2010/005422
Authority: WO
Inventors: 강흥묵
Original assignee: Kang Heung Mook
Priority date: 2009-08-19
Filing date: 2010-08-17
Publication date: 2011-02-24
Also published as: WO2011021834A3; KR100982601B1

Abstract

Provided is a vehicle wheel having multiple rims and multiple tires. The present invention provides a vehicle wheel which is connected to an axle of a vehicle to contact a road surface and to rotate along the road surface while supporting the weight of the vehicle, wherein the vehicle wheel comprises: an inner rim connected to an end of the axle and the outer surface of which has a first bead base, and which has at least one air injection valve; a first tire which has a first inner bead portion formed at an inner end thereof corresponding to the first bead base, and which is mounted at the first bead base of the inner rim; an outer rim having a second inner bead base arranged at an inner surface thereof corresponding to a first outer bead portion formed at an outer end of the first tire, such that the first outer bead portion of the first tire is mounted at the second inner bead base of the outer rim; and a second tire having a second bead portion formed at an inner end thereof corresponding to a second outer bead base arranged at an outer surface of the outer rim, such that the second bead portion is mounted at the second outer bead base of the outer rim, wherein the second tire has a tread portion formed at an outer surface thereof contacting the road surface. The vehicle wheel of the present invention has an inner air chamber formed by the inner rim, the first tire and the outer rim, and an outer air chamber formed by the outer rim and the second tire.

Description

Wheels with multiple rims and multiple tires

The present invention relates to a wheel mounted on the axle of a vehicle, and more particularly, to adjust the air pressure to double or triple, respectively, so as to selectively adopt a traction force and a ride comfort in accordance with the driver's preferences and habits, It is possible to minimize the standing wave phenomenon generated, minimize the heat generation, and reuse the wheels by replacing only the outer tires, thereby reducing the vehicle maintenance cost. will be.

In general, the axle of the vehicle traveling on the road is provided with a wheel that is rotated by receiving the driving force generated when the engine is driven.

The wheels are provided with tires that support the load of the vehicle, alleviate the impact generated on the road surface, and transmit engine power, braking force, steering force, and the like to the road surface to maintain the movement of the vehicle.

These tires are made of a resilient air container, and are classified into tube-built tires and tubeless tires in which tubes are built in to maintain air pressure.

However, such a tire suddenly loses its balance and steering ability in the event of punctures or tears that occur while driving a vehicle, leaving the lane causing a crash or overturning, causing a large accident.

In addition, when the vehicle is running at high speed, the crushed tire lacks the return force to its original shape, causing a standing wave phenomenon in which the rear of the tire shakes like a wave, which not only impairs the ride quality of the vehicle but also keeps the frictional heat of the tire running continuously without reducing the speed of the vehicle. As they get bigger and beyond their limits, the tires finally burst.

In addition, the tire is designed to have abrasion resistance due to friction with the road surface, but when the tire reaches a predetermined life cycle, the braking force may be lost due to its wear and the tire may be ruptured due to loss of durability. Tires are incinerated or recycled. Accordingly, tire replacement acted as a factor causing a lot of economic burden and environmental pollution.

In addition, if the tire pressure is high, the ground area of the tire in contact with the road surface is small, resulting in less ride comfort and braking force. On the other hand, the tire wears less, while in contrast, if the tire pressure is low, the ground area of the tire in contact with the road surface is increased, resulting in increased ride comfort and braking force. On the other hand, tire wear increases and heat generation increases, causing problems in safety during vehicle casting.

Accordingly, the present invention is to solve the above problems, the object of the tire is to ensure the running stability of the vehicle even in the puncture or tear generated during the vehicle running, multiple rims and multiple that can minimize the standing wave phenomenon An object is to provide a wheel with a tire.

Another object of the present invention is to provide a wheel having multiple rims and multiple tires capable of dissipating heat generated during high-speed driving to the outside to prevent overheating of tires.

Another object of the present invention is to provide a wheel having multiple rims and multiple tires that can be used semi-permanently and wear only the outer tire in contact with the road surface, thereby reducing the economic burden and environmental pollution due to tire replacement.

Another object of the present invention is to separate the air chamber of the wheel into the inner and outer with multiple rims to inject air to have different air pressures, so that the wheels with multiple rims and multiple tires that can increase both grip, ride comfort, wear resistance and safety To provide.

As a specific means for achieving the above object, the present invention is connected to the axle of the vehicle in contact with the road surface to support the weight of the vehicle running along the road surface, is connected to the end of the axle, the first outer peripheral surface An inner rim having a bead base and having at least one air injection valve; A first tire mounted on a first bead base of the inner rim by having a first inner bead portion at an inner end corresponding to the first bead base; An outer rim provided with a second inner bead base on an inner circumferential surface corresponding to a first outer bead portion provided at an outer end of the first tire to mount the first outer bead portion of the first tire; A second bead portion at an inner end corresponding to a second outer bead base provided on an outer circumferential surface of the outer rim, mounted to a second outer bead base of the outer rim, and having a tread portion on an outer surface of the outer rim that is in contact with the road surface And an inner air chamber by the inner rim, the first tire and the outer rim, and an outer air chamber by the outer rim and the second tire. It provides a wheel having.

Preferably, the internal air chamber and the external air chamber are filled with air such that the first tire and the second tire have the same air pressure or filled with air.

Preferably, the outer rim has at least one connection hole to communicate the internal air chamber and the external air chamber with each other.

More preferably, the connection hole is provided with a closure member to selectively open and close the air connection passage.

Preferably, the height of the external air chamber including the second tire in contact with the road surface is the same as or different from the height of the internal air chamber including the first tire.

Preferably, the inner rim includes an air injection valve for injecting air into the internal air chamber and another air injection valve for injecting air into the external air chamber, respectively.

Preferably, the inner rim includes at least one air injection valve for injecting air into the internal air chamber, and the outer rim includes at least one other air injection valve for injecting air into the external air chamber.

Preferably, the internal air chamber or the external air chamber includes a tube which is inflated by the air is injected by the air injection valve.

Preferably, the outer rim includes a protruding jaw so that the first outer bead portion of the first tire is fitted between the second inner bead base and an inner surface corresponding to the inner air chamber.

Preferably, the outer rim includes a plurality of protrusions to be in close contact with the outer surface of the tire connecting portion connecting between the pair of first outer bead portions facing each other on the inner air chamber and the corresponding inner surface.

Preferably, the outer rim has an extension extending radially from the second inner bead base to cover the outer surface of the first tire.

Preferably, the outer rim has at least one groove between the second inner bead base and the second outer bead base.

Preferably, the outer rim of the second outer bead base is bent at the end of the second inner bead base on which the first outer bead portion of the first tire is disposed or the second outer bead base on which the second bead portion of the second tire is disposed. An end portion has a bent portion that is bent toward the outside air chamber or the inner rim has a bend portion that is bent toward the inner air chamber side at an end of the first bead base on which the first inner bead portion of the first tire is disposed.

Preferably, the outer rim includes a reinforcing part having an inclined surface and a protruding surface to protrude toward the inner air chamber or the outer air chamber at a boundary portion that bisects the inner air chamber and the outer air chamber.

Preferably, the outer rim is inclined at an angle at a boundary portion that bisects the internal air chamber and the external air chamber.

Preferably, the outer rim includes a second outer bead base provided at an end portion of the extension part which extends a predetermined length outward to be disposed outside the second inner bead base.

More preferably, the second outer bead base is formed in a cross-section open to the outer side and the upper side to be located in the upper side or parallel to the first outer bead portion of the first tire and open to the lower portion of the second tire portion of the second tire It includes a fitting portion that is disposed.

Preferably, the outer rim includes a second inner bead base provided at an end portion of the extension part which extends a predetermined length outward to be disposed outside the second outer bead base.

Preferably, the external air chamber is filled with a porous shock absorbing member.

Preferably, an intermediate air chamber is provided between the internal air chamber and the external air chamber, wherein the intermediate air chamber is an intermediate rim disposed between the internal rim and the external rim, and a third tire coupled between the external rim and the intermediate rim. And an outer rim.

Preferably, the outer rim includes an opening and closing portion for opening and closing the connection hole formed to communicate with the internal air chamber and the external air chamber on the outer surface, the opening and closing portion is the connection to the boundary partitioning between the internal air chamber and the external air chamber A guide part formed to be deeply intersecting with the ball, a guide bar slidably assembled to the guide part, and having a through hole coinciding with the connecting hole in the middle of the length, and one end connected to the guide part and the other end to the guide bar. Is connected to include a resilient member for returning the guide bar pulled outward to match the through hole and the connection hole.

Preferably, the outer rim includes an opening and closing portion for opening and closing the connection hole formed to communicate with the internal air chamber and the external air chamber on the outer surface, the opening and closing portion is the connection to the boundary partitioning between the internal air chamber and the external air chamber Opening and closing control bar is rotatably assembled in the through-hole assembly hole formed so as to communicate with the ball, and is provided at the front end of the opening and closing control bar rotatably disposed in the connection hole, and includes a vertical through hole.

According to the present invention, an interior air chamber is provided by an inner rim connected to an axle, a first tire, and an outer rim, and an outside air chamber is provided by an outer rim and a second tire disposed outside the first tire. Since the tire shape can be maintained even when puncture or tear occurs in the second tire that is in contact with the road surface while driving, vehicle stability can be guaranteed, and the height of the sidewall of the second tire that is in contact with the road surface is shorter than that of a single tire. The standing wave phenomenon can be minimized because it can improve the original force of the tire which is deformed at the time.

In addition, since the heat generated from the tire during high-speed driving can be released to the outside through the outer rim to prevent overheating of the inside of the tire, it is possible to reduce the wear of the tire.

In addition, since it is possible to replace only the second tire in contact with the road surface at the time of regular replacement of the tire, the economic burden and environmental pollution can be reduced, while the internal air chamber and the second tire of the first tire are reduced. As the air pressure of the outside air chamber can be adjusted differently, the ride comfort, safety and road shock absorbency, road grounding performance and wear resistance can be improved.

In addition, by dividing the height of the existing tire into two to three equally, the first outer rim and the second outer rim are horizontally reinforced, so that the effect of reducing or reducing the phenomenon caused when the vehicle is turned is obtained.

1 is a cross-sectional view showing a wheel having multiple rims and multiple tires according to a first embodiment of the present invention.

2 is a cross-sectional view showing a wheel having multiple rims and multiple tires according to a second embodiment of the present invention.

3 and 4 are cross-sectional views showing wheels having multiple rims and multiple tires according to a third embodiment of the present invention.

5 is a cross-sectional view showing a wheel having multiple rims and multiple tires according to a fourth embodiment of the present invention.

6 is a cross-sectional view showing a wheel having multiple rims and multiple tires according to a fifth embodiment of the present invention.

7 is a cross-sectional view showing a wheel having multiple rims and multiple tires according to a sixth embodiment of the present invention.

8 is a cross-sectional view of a wheel having multiple rims and multiple tires according to a seventh embodiment of the present invention.

9 is a cross-sectional view showing a wheel having multiple rims and multiple tires according to an eighth embodiment of the present invention.

10 and 11 are cross-sectional views showing wheels having multiple rims and multiple tires according to a ninth embodiment of the present invention.

12 is a cross-sectional view showing a wheel having multiple rims and multiple tires according to a tenth embodiment of the present invention.

13 is a sectional view showing a wheel having multiple rims and multiple tires according to an eleventh embodiment of the present invention.

14 is a cross-sectional view showing a wheel having multiple rims and multiple tires according to a twelfth embodiment of the present invention.

15 is a sectional view showing a wheel having multiple rims and multiple tires according to a thirteenth embodiment of the present invention.

16 is a cross-sectional view showing a wheel having multiple rims and multiple tires according to a fourteenth embodiment of the present invention.

17 is a cross-sectional view showing a wheel having multiple rims and multiple tires according to a fifteenth embodiment of the present invention.

18 is a sectional view showing a wheel having multiple rims and multiple tires according to a sixteenth embodiment of the present invention.

19 and 20 are sectional views showing a wheel having multiple rims and multiple tires according to a seventeenth embodiment of the present invention.

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

The wheel 100 having multiple rims and multiple tires according to the first embodiment of the present invention is connected to the axle of a vehicle having an engine as shown in FIG. The driving force is received and travels along the road surface, and includes an inner rim 110, a first tire 120, an outer rim 130, and a second tire 140.

The inner rim 110 may be formed in a substantially cylindrical shape connected through a hub and a hub of a vehicle, not shown, and may be formed of a rigid structure such as an aluminum metal material or an engineering plastic material.

The inner rim 110 has a pair of left and right first bead base 111 is mounted on the outer circumferential end of the first tire 120, the outside air between the first tire 120 and the second tire At least one air injection valve 119 is provided to force the injection into the 140.

The air injection valve 119 may include a first inlet 119a for injecting external air into the internal air chamber 101 formed by the inner rim 110, the first tire 120, and the outer rim 130. A second inlet 119b for injecting external air into the external air chamber 102 formed by the outer rim 130 and the second tire 140 may be provided.

In this case, the second inlet 119b extending from the air inlet valve 119 may be fixed to the outer rim 130, and the air inlet valve 119 may be the first inlet 119a and the second. Two injection lines each connected to the injection hole 119b may be provided or may be provided with a Y-shaped injection line to be connected at the same time.

Accordingly, since the air can be injected or selectively injected into the internal air chamber 101 and the external air chamber 102 simultaneously through the air injection valve 119, the internal air chamber 101 and the external air chamber 102 may be filled by injecting air so that the first tire 110 and the second tire 130 have the same air pressure or filled with air to have different air pressures.

The first tire 120 includes the first inner bead part 121 at an inner end corresponding to the first bead base 111 provided at both ends of the outer circumferential surface of the inner rim 110. The inner end is mounted to the first bead base 111 of the ().

Accordingly, the first tire 120 and the inner rim 110 form an inner air chamber 101 in which air is filled by the combination of the outer rim 130.

A core wound around one end of the bead wire 123 may be wound around the end portion of the cord paper and the first tire 110 may be mounted on the inner rim 110 without external detachment. 123a).

The outer rim 130 has a substantially cylindrical shape in which the first and

second tires

120 and 140 are mounted while dividing them disposed between the first tire 120 and the second tire 140. Or it may be made of a rigid structure such as engineering plastics material.

The second inner bead base 131 on which the first tire 120 is mounted and the second outer bead base 132 on which the second tire 140 is mounted are formed at the outer and outer ends of the outer circumferential surface of the outer rim 130. Each is provided.

Although the second inner bead base 131 and the second outer bead base 132 are illustrated and described as being provided in a left-right symmetrical structure with respect to the boundary of the outer rim 130, the present invention is not limited thereto. Can be.

The first tire 120 is attached to the second inner bead base 131 formed on the inner circumferential surface of the outer rim 130 so as to correspond to the first outer bead portion 122 provided at the outer end of the first tire 120. The first outer bead portion 122 of is mounted.

Similarly to the first inner bead part 121, the first outer bead part 122 also winds up the end of the cord and allows the first tire 110 to be mounted on the outer rim 130 without external detachment. The core 123a wound around the other end of 123 is provided.

In addition, the outer rim 130 may include at least one connection hole 135 to communicate the internal air chamber 101 and the external air chamber 102 with each other, and the connection hole 135 has an air connection. It is preferable to include a stopper member 135a to selectively open and close the passage, and the connection hole 135 is provided at a boundary portion 136 partitioning between the inner air chamber 101 and the outer air chamber 102. It is preferably formed.

The second tire 140 is mounted to the outside of the outer rim 130 having a tread portion 145 to induce frictional resistance on the outer surface in contact with the road surface.

The second tire 140 is provided with a second bead portion 141 at the inner end corresponding to the second outer bead base 132 provided in a pair left and right on the outer peripheral surface of the outer rim of the outer rim 130 The second outer bead base 132 is mounted so that external detachment is difficult.

The second bead portion 141 is wound around both ends of the bead wire 143 disposed to cross the tread portion 145 so that the second tire 130 can be mounted on the outer rim 130 without external detachment.

Cores

143a and 143b are provided.

Accordingly, the wheel 100 includes an inner air chamber 101 formed by the inner rim 110, the first tire 120, and the outer rim 130, the outer rim 130, and the second tire. The external air chamber 102 formed by the 140 may be provided in a double structure, each provided in one rotating body.

Here, the first tire 120 and the second tire 140 is shown and described that the width of the inner air chamber 101 and the outer air chamber 102 are the same size, but is not limited to this, but It may be provided in other width sizes.

In addition, the height of the external air chamber 102 including the second tire 140 in contact with the road surface may be the same as or different from the height of the internal air chamber 101 including the first tire 120.

FIG. 2 is a longitudinal sectional view of a wheel having multiple rims and multiple tires according to a second embodiment of the present invention. The wheel 100a is a first inlet 117a for injecting air into the internal air chamber 101. The inner rim 110 is provided with an air injection valve 117 having a) and another air injection valve 118 having a second inlet 118a for injecting air into the external air chamber 102. . At this time, the second inlet 118a is preferably fixed to the outer rim 130 as described above.

In this case, the air is injected or different from each other so that the air pressure of the internal air chamber 101 and the air pressure of the external air chamber 102 are equal to each other through the

air injection valves

117 and 118 provided in the inner rim 110, respectively. The air can be injected to have air pressure.

Figure 3 (a) (b) is a longitudinal cross-sectional view showing a wheel having a multiple rim and multiple tires according to a third embodiment of the present invention, the wheel 100b is air injection provided in the inner rim 110 The internal air chamber 101 includes a tube 116 in which air is injected and expanded by the valve 119.

Accordingly, when the tube 116 is expanded, the first tire 120 is in close contact with the inner rim 110 and the outer rim 130 by the expanded tube to increase the adhesion between the first tire and the inner and outer rims. It is.

Here, as shown in FIG. 3, the external air chamber 102 is an injection port 119b of another air injection valve 119 ′ provided in the outer rim 140 similarly to the air injection valve provided in the inner rim. Air may be injected and filled through, but is not limited thereto. As shown in FIG. 4, the first tire 120 and the tube may extend from the air injection valve 119 provided in the inner rim 110. Air may be injected and filled through the inlet 119b disposed between the 116 and then penetrating the boundary portion 136 partitioning between the inner air chamber 101 and the outer air chamber 102.

FIG. 5 is a longitudinal sectional view showing a wheel having multiple rims and multiple tires according to a fourth embodiment of the present invention, wherein the wheel 100c has an interior of the outer rim 130 corresponding to the internal air chamber 101. FIG. The protrusion 133 is provided on the surface such that the first outer bead portion 122 of the first tire 110 is fitted between the second inner bead base 131, and the protrusion 133 is external. It may be provided in an annular ring shape that continues in the circumferential direction along the inner surface of the rim (130).

Accordingly, the first outer bead portion 122 of the first tire 110 is sandwiched between the second inner bead base 131 and the protruding jaw 133 so that the first tire 120 and the outer rim ( 130) can increase the bonding strength and adhesion between.

FIG. 6 is a longitudinal sectional view showing a wheel having multiple rims and multiple tires according to a fifth embodiment of the present invention, wherein the wheel 100d has an interior of an outer rim 130 corresponding to the internal air chamber 101. FIG. A plurality of protrusions 134 are provided to be in close contact with the outer surface of the tire connecting portion 125 connecting the pair of first outer bead portions 122 facing each other on the surface.

Accordingly, when the inner air chamber 101 is inflated, the first tire (by contacting the tire connecting portion 125 and the outer rim 130 connecting between the pair of first outer bead portions 122 facing each other) 120) and the bonding force between the outer rim 130 and the adhesion can be increased.

7 is a longitudinal sectional view showing a wheel having multiple rims and multiple tires according to a sixth embodiment of the present invention, wherein the wheel 100e includes a first outer bead portion 122 of the first tire 120. It is provided with an extension portion 131a extending in a radial direction to cover the whole or part of the outer surface of the first tire 120 from the second inner bead base 131 of the outer rim 130 is disposed.

Accordingly, the outer surface of the first tire 120 is covered and protected by the expansion portion 131a extending radially from the second inner bead base 131 of the outer rim 130 by the external environment. It is possible to prolong the service life by preventing the external surface of the first tire 120 from being damaged in advance.

FIG. 8 is a longitudinal sectional view of a wheel having multiple rims and multiple tires according to a seventh embodiment of the present invention, wherein the wheel 100f includes a first outer bead portion 122 of the first tire 120. In the region corresponding to the second inner bead base 131 of the outer rim 130 is disposed and the second outer bead base 132 of the second tire 140 is disposed; At least one groove 136a is provided to widen the surface area of the outer rim 130.

These grooves 136a may be provided continuously or discontinuously in the circumferential direction along the outer surface of the outer rim 130.

Accordingly, the internal air chamber during driving by widening the external surface area of the outer rim 130 exposed by the groove 136a recessed between the second inner bead base 131 and the second outer bead base 132. The heat dissipation efficiency of dissipating heat generated from the 101 and the outside air chamber 102 to the outside can be improved, thereby preventing the first tire and the second tire from being overheated while traveling.

FIG. 9 is a longitudinal sectional view of a wheel having multiple rims and multiple tires according to an eighth embodiment of the present invention, wherein the wheel 100g includes a first outer bead portion 122 of the first tire 120. A bent portion 131a that is bent toward the inner air chamber 101 is provided at an end portion of the second inner bead base 131 to be disposed.

The bent portion 131a is illustrated and described as being bent in a substantially perpendicular direction with respect to the vertical second inner base 131, but is not limited thereto and induces a locking force with the first outer bead portion 122. It may be provided to be inclined so as to make it.

Here, the bent portion 131a is illustrated and described as being formed at an end portion of the second inner bead base 131 of the outer rim 120, but is not limited thereto. The second bead of the second tire 140 may be described. The first bead base 111 of the inner rim 110 formed at the end of the second outer bead base 132 in which the portion 141 is disposed or bent toward the outside air chamber or in which the first inner bead portion of the first tire is disposed. It may be formed to be bent toward the inner air chamber 101 at the end of the bent portion 131a may be provided continuously or discontinuously in the circumferential direction along the outer rim or the inner rim.

Accordingly, the second inner bead base 131 may be formed by a bent portion 131a formed at an end portion of the second inner bead base 131 or a bent portion formed at an end portion of the first bead base 111. The first outer bead portion 122 of the first tire 120 is disposed in the engaging position to provide a locking force when the air pressure of the inner air chamber 101 is lowered when the first tire 120 from the outer rim 130 Separation can be prevented.

10 and 11 are longitudinal cross-sectional views showing wheels having multiple rims and multiple tires according to a ninth embodiment of the present invention, wherein the wheel 100h is shown in FIG. ) And a reinforcing part having an inclined surface 137a and a protruding surface 137b so as to protrude a predetermined height toward the inner air chamber 101 at the boundary portion 136 of the outer rim 130 disposed to bisect the outer air chamber 102. It is provided with 137

The reinforcement part 137 is shown and described as having a connection hole 135 at the same time the second inlet 119b of the air injection valve 119 and the stopper member 135a on the protruding surface 137b. The second injection hole 119b and the connection hole 135 may be provided at different positions.

Accordingly, the second surface contacting the road surface by relatively expanding the internal volume of the external air chamber 102 by the reinforcing portion 137 protruding from the inner air chamber 101 to the boundary 136 of the outer rim 130. The air cushioning effect of the tire 140 may be improved.

In addition, the load is transmitted to the outer rim 130 by the reinforcing portion 137 consisting of the inclined surface 137a and the protruding surface 137b continuously or discontinuously provided along the outer surface of the outer rim 140. By dispersing to both sides to increase the structural strength of the outer rim can extend the service life of the outer rim 130.

And, as shown in Figure 11, the wheel (100h) is the outer air chamber at the boundary 136 of the outer rim 130 which is arranged to bisect the inner air chamber 101 and the outer air chamber 102 And a reinforcing portion 137 'having an inclined surface 137a' and a protruding surface 137b 'so as to protrude a predetermined height toward the 102 side.

Accordingly, the inner rim and the outside by relatively expanding the inner volume of the inner air chamber 101 by the reinforcing portion 137 ′ protruding from the outer air chamber 102 to the boundary 136 of the outer rim 130. It is possible to improve the air buffering effect of the first tire 110 provided between the rim.

In addition, the inclined surface 137a 'and the protruding surface 137' are transmitted to the outer rim 130 by the reinforcement portion 137 'provided continuously or discontinuously along the outer surface of the outer rim 130. While increasing the structural strength of the outer rim while distributing the load to both sides, it is possible to extend the service life of the outer rim 130, while the reinforcing portion 137 'which is convex downward when the second tire 140 is punctured. Since the shape of the second tire 140 in contact with the road surface may be maintained, driving instability due to the puncture generated during driving may be temporarily prevented.

12 is a longitudinal sectional view showing a wheel having multiple rims and multiple tires according to a tenth embodiment of the present invention, wherein the wheel 100i divides the internal air chamber 101 and the external air chamber 102. The boundary 136 of the outer rim 130 is disposed to be inclined at a predetermined angle.

Accordingly, the boundary portion 136 is provided to be inclined at a predetermined angle toward the center of the vehicle, so that the boundary portion 136 is provided in a conical shape to ensure stability when turning the vehicle.

FIG. 13 is a longitudinal sectional view showing a wheel having multiple rims and multiple tires according to an eleventh embodiment of the present invention, wherein the wheel 100j is disposed by the second bead part 141 of the second tire 140. The second outer bead base 132 is provided at an end portion of the extension portion 132b extending a predetermined length outward from the second outer bead base 132 so as to be disposed outside the second inner bead base 131.

Accordingly, the second outer bead base 132 of the outer rim 130 to which the second bead part 141 of the second tire 140 is coupled is disposed outside the second inner bead base, thereby forming a second tire ( The width of the 140 is relatively wider than the width of the first tire 120, so that the ground area with the road surface is expanded, thereby improving the braking force of the vehicle.

14 is a longitudinal sectional view showing a wheel having multiple rims and multiple tires according to a twelfth embodiment of the present invention, in which the wheel 100k is disposed by the second bead part 141 of the second tire 140. An extension portion 132b extending outwardly from the second inner bead base so that the second outer bead base 132 is disposed outside the second inner bead base 131, and the second tire 140. The second bead portion 141 is provided with a fitting portion (132a) on the cross section opened to the bottom to be inserted arrangement.

In addition, since the second bead portion of the second tire is positioned parallel to or above the first outer bead portion of the first tire, the height of the first tire 120 can be lowered, so that the first tire 120 and the first tire Since the overall height of the wheel 100j including the two tires 140 may be lowered, the height of the garage may be lowered.

15 is a longitudinal sectional view showing a wheel having multiple rims and multiple tires according to a thirteenth embodiment of the present invention, wherein the wheel 100l is disposed by the second bead part 141 of the second tire 140. Out of the second inner bead base out of the pair of second outer bead base 132 so as to place only the second outer bead base corresponding to the outer side (left side in the drawing) of the wheel outside the second inner bead base 131 It is provided in the extension portion 132b extending a predetermined length.

Accordingly, the second outer bead base 132 of the outer rim 130 to which the second bead part 141 of the second tire 140 is coupled is disposed outside the second inner bead base to form a second tire ( The width of the 140 may be relatively wider than the width of the first tire 120 so that the ground area with the road surface may be expanded to improve the braking force of the vehicle and to secure stability when turning the vehicle.

FIG. 16 is a longitudinal sectional view showing a wheel having multiple rims and multiple tires according to a fourteenth embodiment of the present invention, wherein the wheel 100m includes a first inner bead portion 122 of the first tire 120. The second inner bead base 131 is disposed at an end portion of the extension part 131b extending a predetermined length outward from the second outer bead base 132 so as to be disposed outside the second outer bead base 132. .

Accordingly, the second outer bead base 132 of the outer rim 130 to which the second bead part 141 of the second tire 140 is coupled is disposed outside the second inner bead base to form a second tire ( The width of the 140 is relatively narrower than the width of the first tire 120, while the internal volume of the internal air chamber is enlarged to increase the amount of injected air and to obtain a spring buffer effect when the vehicle is driven.

17 is a longitudinal sectional view showing a wheel having multiple rims and multiple tires according to a fifteenth embodiment of the present invention, wherein the wheel 100o is formed by the outer rim 130 and the second tire 140. The porous shock absorbing member 149 may be filled in the inner space of the external air chamber 102, and the shock absorbing member 149 may be made of porous sponge, urethane, or silicon material.

Accordingly, the second tire shape can be maintained even when the second tire is in contact with the road surface by the shock absorbing member 149 filled in the external air chamber 120 to ensure driving safety of the vehicle traveling on the road. Can be.

18 is a longitudinal sectional view showing a wheel having multiple rims and multiple tires according to a sixteenth embodiment of the present invention, wherein the wheel 100p includes an intermediate air chamber 103 between the internal air chamber and the external air chamber. The intermediate air chamber 103 may include a middle rim 150 disposed between the inner rim 110 and an outer rim 130, and a coupling between the outer rim 130 and the intermediate rim 150. The three tires 160 and the outer rim 130 are provided.

The intermediate rim 150 is provided in the same cross section as the outer rim 130, and the third inner bead base 151 in which the first tire 120 is mounted on the outer and outer ends of the outer circumferential surface of the intermediate rim 150. ) And a third outer bead base 152 on which the third tire 160 is mounted.

The third tire 160 is provided in the same cross-sectional shape as the first tire 120, and is formed at an inner end corresponding to the third inner bead base 151 provided at both ends of the outer circumferential surface of the intermediate rim 150. The inner end is attached to the third inner bead base 151 of the intermediate rim 150 by providing the inner bead 161.

In addition, the second inner bead of the outer rim 130 is provided with a third outer bead portion 162 at an outer end corresponding to the second inner bead base 131 provided at both ends of the inner circumferential surface of the outer rim 130. The outer end is mounted to the bead base 131.

The intermediate rim 150, the outer rim 130 and the third tire 160 are combined to form an intermediate air chamber 103 filled with air through the third inlet 119c extending from the air injection valve. do.

The third inner bead 161 and the third outer bead 162 are wound around the end of the cord, and the third tire 110 is wound on the intermediate rim 150 and the outer rim 130 without external separation. A core 163a wound around both ends of the bead wire 163 is provided for mounting.

Accordingly, the internal air chamber 101 and the external air chamber 102 together with the intermediate air chamber 103 are provided therebetween, and the impact generated when the vehicle is driven by forming different air pressures of the air chambers filled with air. It can maximize the buffering effect of absorbing.

19 and 20 are longitudinal cross-sectional views showing wheels having multiple rims and multiple tires according to a seventeenth embodiment of the present invention, wherein the wheel 100p is shown in FIG. Opening portion 170 for opening and closing the connection hole 135 formed to communicate with the inner air chamber 101 and the outer air chamber 102 to each other on the outer surface of the.

The opening and closing portion 170 is a guide portion 171 is formed in a predetermined depth to intersect the connection hole 135 in the boundary portion 136 that partitions between the internal air chamber 101 and the external air chamber 102, and the One end portion is connected to the guide bar 173 and the guide portion 171 which are assembled to slide in the guide portion 171 and are formed in the length of the through hole 172 coinciding with the connection hole 135. The other end is connected to the guide bar 173 includes an elastic member 174 which provides a restoring force for returning the guide bar pulled outward to match the through hole and the connection hole.

Accordingly, in order to open the connection hole 135 to communicate between the internal air chamber 101 and the external air chamber 102, the guide bar is pulled outward (left side in the drawing), and the guide part 171 The through-hole 172 of the guide bar 173, which was pulled outward along the (1) coincides with the connection hole 135 of the boundary portion 136 to open the air connection passage connecting the internal air chamber and the external air chamber to each other As a result, the internal air chamber and the external air chamber have the same air pressure.

On the other hand, when releasing the external force to pull the guide bar to the outside, the elastic member 174 is extended to the outside to have an elastic restoring force when pulled out as the guide bar 173 along the guide portion 171 to the inside While moving, the connection hole 135 of the boundary part 136 is blocked by the guide bar to close the air connection passage connecting the internal air chamber and the external air chamber to each other.

As shown in FIG. 20, the opening / closing portion 170a is formed in a through-hole formed so as to communicate with the connection hole 135 at a boundary portion 136 partitioning between the inner air chamber 101 and the outer air chamber 102. Opening and closing bar 175 is rotatably assembled to the 176, and is provided at the front end of the opening and closing control bar 175 rotatably disposed in the connecting hole 135, and has a vertical through hole (177a) It includes a ball member 177.

Accordingly, in order to open the connection hole 135 to communicate between the internal air chamber 101 and the external air chamber 102, when the opening / closing adjustment bar 175 is rotated at a predetermined angle in the forward or reverse direction, As the opening and closing bar 175 is rotated in the assembly hole, the ball member 177 disposed in the connection hole 135 can also be rotated by a predetermined angle, so that the vertical through hole 177a of the ball member is connected to the connection hole. Located on the same virtual vertical axis to open the air connection passage for communicating the internal air chamber and the external air chamber with each other, thereby having the same air pressure between the internal air chamber and the external air chamber.

On the other hand, when the connection hole and the through hole is matched by rotating the opening and closing adjustment bar 175 by a predetermined angle 90 degrees in the forward or reverse direction, the ball member 177 is rotated together with the opening and closing adjustment bar 175 and the ball member As the outer surface is in close contact with the connection hole, the connection hole 135 of the boundary portion 136 is blocked by the ball member, thereby closing the air connection passage connecting the internal air chamber and the external air chamber to each other.

While the invention has been shown and described with respect to particular embodiments, it will be understood that various changes and modifications can be made in the art without departing from the spirit or scope of the invention as set forth in the claims below. It will be appreciated that those skilled in the art can easily know.

Claims

In the wheel connected to the axle of the vehicle and running along the road surface while supporting the vehicle weight in contact with the road surface,

An inner rim connected to an end of the axle and having a first bead base on an outer circumferential surface and having at least one air injection valve;

A first tire mounted on a first bead base of the inner rim by having a first inner bead portion at an inner end corresponding to the first bead base;

An outer rim provided with a second inner bead base on an inner circumferential surface corresponding to a first outer bead portion provided at an outer end of the first tire to mount the first outer bead portion of the first tire;

A second bead portion at an inner end corresponding to a second outer bead base provided on an outer circumferential surface of the outer rim, mounted to a second outer bead base of the outer rim, and having a tread portion on an outer surface of the outer rim that is in contact with the road surface Tire;

And an inner air chamber provided by the inner rim, the first tire and the outer rim, and an outer air chamber provided by the outer rim and the second tire.
The method of claim 1,

The internal air chamber and the external air chamber are multiple wheels having multiple rims and multiple tires, characterized in that the air is filled so that the first tire and the second tire have the same air pressure or different air pressure.
The method of claim 1,

The outer rim is a wheel having multiple rims and multiple tires, characterized in that it comprises at least one connection hole to communicate the internal air chamber and the external air chamber with each other.
The method of claim 3,

The connection hole is a wheel having multiple rims and multiple tires, characterized in that it is provided with a closure member to selectively open and close the air connection passage.
The method of claim 1,

The height of the external air chamber having a second tire in contact with the road surface is the same or different from the height of the internal air chamber having the first tire, the wheel having multiple rims and multiple tires.
The method of claim 1,

The inner rim of the wheel having multiple rims and multiple tires, characterized in that each having an air injection valve for injecting air into the internal air chamber, and another air injection valve for injecting air into the external air chamber.
The method of claim 1,

The inner rim includes at least one air injection valve for injecting air into the internal air chamber, and the outer rim includes at least one other air injection valve for injecting air into the external air chamber. Wheels with multiple rims and multiple tires.
The method of claim 1,

The inner air chamber or the outer air chamber is a wheel having a multiple rim and multiple tires, characterized in that the air is injected by the air injection valve and the tube is expanded.
The method of claim 1,

The outer rim has multiple rims and multiple tires on the inner surface corresponding to the inner air chamber and having a protruding jaw so that the first outer bead portion of the first tire is fitted between the second inner bead base. Wheels.
The method of claim 1,

The outer rim has a plurality of rims and multiple tires, characterized in that it has a plurality of projections to be in close contact with the outer surface of the tire connecting portion connecting between the pair of first outer bead facing each other in the inner air chamber and the corresponding inner surface Wheels.
The method of claim 1,

And said outer rim has an extension extending radially from said second inner bead base to cover an outer surface of said first tire.
The method of claim 1,

And the outer rim has at least one recess between the second inner bead base and the second outer bead base.
The method of claim 1,

The outer rim is bent toward the inner air chamber side at the end of the second inner bead base on which the first outer bead portion of the first tire is disposed or is external to the end of the second outer bead base on which the second bead portion of the second tire is disposed. The inner rim has a bent portion that is bent toward the air chamber side, or the inner rim includes a bent portion that is bent toward the inner air chamber side at the end of the first bead base on which the first inner bead portion of the first tire is disposed. Wheel with tires.
The method of claim 1,

The outer rim is a wheel having multiple rims and multiple tires, characterized in that the reinforcing portion having an inclined surface and a protruding surface so as to protrude toward the internal air chamber or the external air chamber at the boundary portion that divides the internal air chamber and the external air chamber.
The method of claim 1,

The outer rim is a wheel having multiple rims and multiple tires, characterized in that the boundary portion for dividing the internal air chamber and the external air chamber is inclined at a predetermined angle.
The method of claim 1,

And the outer rim includes a second outer bead base provided at an end portion of the extension part which extends a predetermined length outward to be disposed outside the second inner bead base.
The method of claim 16,

The second outer bead base is formed in the cross-sectional shape is extended to the outer side and the upper side to open to the lower side so as to be parallel to the first outer bead portion of the first tire or located on the upper side, the fitting portion in which the second bead portion of the second tire is disposed A wheel having multiple rims and multiple tires, characterized in that it comprises.
The method of claim 1,

And the outer rim includes a second inner bead base provided at an end portion of the extension part which extends a predetermined length outward to be disposed outside the second outer bead base.
The method of claim 1,

The outer air chamber is a wheel having multiple rims and multiple tires, characterized in that filled with a porous shock absorbing member.
The method of claim 1,

An intermediate air chamber is provided between the internal air chamber and the external air chamber, and the intermediate air chamber includes an intermediate rim disposed between the internal rim and the external rim, and a third tire and an external rim coupled between the external rim and the intermediate rim. A wheel having multiple rims and multiple tires, characterized in that it is provided by.
The method of claim 1,

The outer rim includes an opening and closing portion for opening and closing the connection hole formed to communicate with the inner air chamber and the outer air chamber on the outer surface,

The opening and closing portion includes a guide portion formed at a predetermined depth so as to intersect the connection hole at a boundary portion that divides between the internal air chamber and the external air chamber, and a through hole that is slidably assembled to the guide portion and coincides with the connection hole. One guide bar and one end portion is connected to the guide portion and the other end is connected to the guide bar multiple rim characterized in that it comprises an elastic member for returning the guide bar pulled outward to match the through hole and the connection hole to the original state; Wheels with multiple tires.
The method of claim 1,

The outer rim includes an opening and closing portion for opening and closing the connection hole formed to communicate with the inner air chamber and the outer air chamber on the outer surface,

The opening and closing part is provided on the front end of the opening and closing adjustment bar rotatably assembled in the assembly hole formed so as to communicate with the connecting hole in the boundary that partitions between the internal air chamber and the external air chamber, rotatably disposed in the connection hole And a ball member having a vertical through hole.