KR20100036571A - Bicycle using flywheel - Google Patents

Abstract

PURPOSE: A bicycle using an inertial rotor is provided to reduce manpower for the initial move of a back wheel by delivering spin energy to the back wheel. CONSTITUTION: A bicycle using an inertial rotor comprises a driving shaft, a first rotary shaft(51), an inertial rotor and a second rotary shaft(81). The driving shaft is driven with a pedal(23) and is mounted on a frame to rotate. The first rotary shaft is installed on the frame in order to be possible to rotate. The first rotary shaft is connected to the driving shaft and the first power transmission. The inertial rotor stores the spin energy and is installed in the first rotary shaft. The bicycle includes a first power transmission member and transfers the power of the inertial rotor to the second rotary shaft.

Description

Bicycle using inertial rotating body {Bicycle using flywheel}

The present invention relates to a bicycle using an inertial rotating body, and more particularly, to a bicycle that can reduce the manpower of the driver by storing the rotating energy in the inertial rotating body and using the stored rotating energy when starting or climbing uphill. .

In general, bicycles are widely used by the public as low cost, low maintenance costs and effective means of aerobic exercise. In the conventional bicycle, two or more wheels are fastened on a frame, and a sprocket that rotates as a force is applied to a pedal, a chain fastened to the sprocket, and a handle are attached.

These bicycles are operated by kinetic manpower, which pedals human legs to continue muscle contraction movements, which rotates the rear wheels with the force that changes human energy into mechanical energy.

Therefore, the bicycle moves by stepping on the moon with pure manpower without extra power, and requires considerable energy in maneuvering the rear wheel under the load of the bicycle and the human body. In addition, even when braking or decelerating as necessary, the kinetic energy of the wheel is transformed into thermal energy, thereby avoiding unnecessary waste of force. In addition, even after restarting or speeding up after braking, there is a problem in that energy is consumed again, and energy is wasted in duplicate.

Several attempts have been made to reduce this energy consumption. Korean Patent Publication No. 10-0254595 discloses a braking device consisting of a friction drum, two planetary gears, and an elastic body.

The braking device is a device in which elastic energy is accumulated in the elastic body during braking using the elastic body and then replenishes the elastic energy from the elastic body when the bicycle is started. However, the braking device has a disadvantage in that the structure is very complicated because the planetary gear is used as the direction switching device and the working point and the fixed point are always fixed.

The present invention has been made to improve the above problems, the object of the present invention is to provide a bicycle that can be easily driven by reducing the manpower by using the rotational energy stored in the inertial rotating body during the initial startup or driving uphill with a simple structure. .

Another object of the present invention is to provide a bicycle that can use the energy stored in the inertial rotating body at the time of restart or acceleration by storing the energy dissipated by thermal energy due to friction during braking as the rotating energy in the inertial rotating body.

A bicycle using the inertial rotating body of the present invention for achieving the above object is provided to be rotatable in the frame and driven by a closed moon; A first rotating shaft rotatably installed on the frame and connected to the driving shaft and a first power transmission unit; An inertial rotating body installed on the first rotating shaft to store rotational energy; A second rotating shaft rotatably mounted to the frame and having a driving wheel mounted thereon; And first power transmission means for transmitting power of the inertial rotating body to the second rotation shaft and intermittently transmitting power.

The first power transmission means is connected to or separated from the inertial rotating body and connects the first clutch portion to transfer power to the first clutch shaft when connected to the inertial rotating body, and connects the first clutch shaft and the second rotating shaft. It characterized in that it comprises a second power transmission unit.

And a second power transmission means for transferring power from the second rotation shaft that is opposite to the power transmission direction of the first power transmission means to the inertial rotating body and intermittently transmitting power. .

The second power transmission means is connected to or separated from the inertial rotating body, and the second clutch portion for transmitting power from the second clutch shaft to the inertial rotating body when connected to the inertial rotating body, the second clutch shaft and the And a third power transmission unit connecting the second rotation shaft.

The first power transmission unit is provided with a first sprocket installed on the drive shaft, an auxiliary drive shaft rotatably installed on the frame so as to be located between the drive shaft and the first rotation shaft, and installed on one side of the auxiliary drive shaft. A first auxiliary sprocket connected to the sprocket and the first chain, a second auxiliary sprocket installed on the other side of the auxiliary driving shaft, and a second auxiliary sprocket connected to the second chain by the second chain and installed on the first rotating shaft. A first one-way installed between the sprocket and the first rotation shaft and the second sprocket, the power being transmitted from the second sprocket to the first rotation shaft only when the second sprocket rotates in a direction in which the driving wheel is advanced; It is characterized by including a clutch.

The second power transmission unit includes a third sprocket and a fourth sprocket installed on the first clutch shaft and the second rotation shaft, and a third chain mounted to connect the third sprocket and the fourth sprocket, and the third sprocket. The second one-way clutch is installed between the first clutch shaft and the third sprocket, and the power is transmitted from the first clutch shaft to the third sprocket only when the first clutch shaft rotates in the direction in which the driving wheel moves forward. It is characterized by including.

The third power transmission unit includes a fifth sprocket and a sixth sprocket installed on the second clutch shaft and the second rotation shaft, and a fourth chain mounted to connect the fifth sprocket and the sixth sprocket; And a third one-way clutch installed between the second clutch shaft and the fifth sprocket to transmit power from the fifth sprocket to the second clutch shaft only when the fifth sprocket rotates in the direction in which the driving wheel moves forward. It is characterized by.

As described above, the bicycle using the inertial rotating body of the present invention rotates the inertial rotating body that is not loaded at initial startup, stores constant rotational energy, and transfers rotational energy to the rear wheel by operating the clutch. Reduce manpower for initial maneuvers

The energy dissipated by thermal energy due to friction during braking during driving may be stored in the inertial rotating body as rotational energy.

In addition, even when driving uphill, the rotational energy stored in the inertial rotating body is used to facilitate the driving.

Hereinafter, a bicycle using an inertial rotating body according to a preferred embodiment of the present invention with reference to the accompanying drawings will be described in detail.

1 is a perspective view of a bicycle according to an embodiment of the present invention, Figure 2 is a cross-sectional view of the inertial rotating body showing the first clutch portion applied to Figure 1, Figure 3 is a conceptual diagram showing the configuration of the bicycle of Figure 1, Figure 4 is a conceptual diagram showing the configuration of a bicycle according to another embodiment of the present invention.

Referring to Figures 1 to 3, the bicycle 10 of the present invention, unlike the conventional bicycle to transmit the driving force generated by the manpower by pedaling the driver's leg to the rear wheel through the chain driving force generated from the lung moon 23 Is transmitted to the inertial rotating body (110, 120) through the chain (37, 47), the rotational force of the inertial rotating body (110, 120) is transmitted to the driving wheel (95), which is the rear wheel by the chain (87) By driving

In addition, the bicycle 10 of the present invention may be configured so that power can be transmitted from the driving wheel 95 toward the inertial rotating body 110 and 120.

Looking specifically at the bicycle 10 of the present invention as described above, the handle 12 and the front wheel 11 that can be steered by manipulation of the handle 12 is installed on the front of the frame 5 constituting the skeleton. do. The drive shaft 31 is rotatably installed on the frame 5 spaced apart from the front wheel by a predetermined distance, and the closing moon 23 connected by the crank 25 is mounted at both ends of the drive shaft 31.

On the frame 5 spaced rearward from the drive shaft 31, the auxiliary drive shaft 41, the first rotation shaft 51, and the second rotation shaft 81 are rotatably installed so as to be parallel to the drive shaft 31. The driving wheel 95 is mounted on the second rotary shaft 81.

In the present invention, there is shown a three-wheeled bicycle in which two driving wheels 95 are respectively provided at both ends of the second rotary shaft 81, of course, a conventional two-wheeled bicycle can be used.

The drive shaft 31 generates a driving force that can be rolled by the drive wheel 95 by the driver sitting on the saddle 21 by rolling the lung moon 23 with his feet. The driving force generated in the drive shaft 31 is transmitted to the first rotation shaft 51 by the first power transmission unit.

The first power transmission unit has a first sprocket 35, an auxiliary drive shaft 41, first and second auxiliary sprockets 43 and 45, first and second chains 37 and 47, and It is provided with two sprockets 53 and a first one-way clutch (not shown).

The first sprocket 35 is installed on one side of the drive shaft 31. The auxiliary drive shaft 41 is rotatably installed in the frame 5 between the drive shaft 31 and the first rotation shaft 51. The auxiliary drive shaft 41 is for transmitting the power generated in the drive shaft 31 to the first rotating shaft 51 at a large gear ratio. First and second auxiliary sprockets 43 and 45 are mounted on both sides of the auxiliary drive shaft 41, and the first auxiliary sprocket 43 is connected by the first sprocket 35 and the first chain 37. do. The second auxiliary sprocket 45 is connected to the second sprocket 53 by the second chain 47. The first and second auxiliary sprockets 43 and 45 have a plurality of gears having different gear ratios in multiple stages, and the chains 37 and 47 are coupled to a specific gear by a conventional transmission (not shown). To adjust the gear ratio. In addition, the second sprocket 53 is also the same, and the third to sixth sprockets to be described later are the same. And each sprocket can be made of only one gear, unlike that shown.

Meanwhile, in the bicycle 10 of the present invention, the first sprocket 35 of the drive shaft 31 is the second sprocket of the first rotation shaft 51 by the first chain 37 while the auxiliary drive shaft 41 is omitted. 53).

The first one-way clutch is installed between the first rotary shaft 51 and the second sprocket 53. The first one-way clutch transmits power from the second sprocket 53 to the first rotation shaft 51 only when the second sprocket 53 rotates in the direction in which the driving wheel 95 moves forward. In addition, a first one-way clutch may be installed between the first driving shaft 31 and the driving sprocket 35 or may be installed between the auxiliary driving shaft 41 and the first auxiliary sprocket 43. The first one-way clutch has a one-way clutch applied to a conventional bicycle.

As described above, the power generated from the drive shaft 31 is transmitted to the first rotation shaft 51 by the first power transmission unit. Power transmitted to the first rotating shaft 51 rotates the inertial rotating bodies 110 and 120 installed on the first rotating shaft 51.

In the illustrated example, two inertial rotating bodies 110 and 120 are installed at left and right sides of the first rotation shaft 51. The inertial rotor (flywheel) 110, 120 is to store the power transmitted from the drive shaft 31 as the rotational energy is transmitted to the drive wheel 95 by the first power transmission means if necessary. In addition, in the present invention, when the surplus energy is generated during the running of the bicycle 10, the power is transmitted in the opposite direction to the power transmission direction described above may be stored as rotation energy. That is, the power generated as the driving wheel 95 rolls is transmitted to the inertial rotating bodies 110 and 120 by the second power transmission means. The inertial rotating bodies 110 and 120 are formed in a cylindrical shape of a metal material having a predetermined weight. Since the rotational energy of the inertial rotating bodies 110 and 120 is proportional to the angular acceleration and the mass, the inertial rotating bodies 110 and 120 are preferably formed of a metal material having a large specific gravity.

It looks at the first power transmission means for transmitting the rotational energy stored in the inertial rotating body (110) (120) to the second rotating shaft 81 is installed drive wheel (95).

The first power transmission means is connected to or separated from the inertial rotating body 110 installed on the left side of the first rotating shaft, and connected to the inertial rotating body 110 to transmit power to the first clutch shaft 79 (the first clutch part ( 70) and a second power transmission unit connecting the first clutch shaft 79 and the second rotation shaft 81 to each other. In this case, one end of the first clutch shaft 79 is installed to be rotatable in the frame 5.

The first clutch portion 70 has a structure of a conventional friction clutch. For example, the release fork 76 connected by the clutch lever 14 installed on the handle 12 and a cable (not shown), the release bearing 75 and the release lever 74 which are moved by the operation of the release fork 76. Composed or separated by the pressure plate 72 and the clutch plate 71 is to transmit or block the power to the first clutch shaft (79). When the driver pulls the clutch lever 14, the pressure plate 72 is separated from the clutch plate 71, and power is cut off. When the clutch lever 14 is released, the pressure plate 72 is pulled out by the tension of the spring 73. 71 is pressed onto the inertial rotating body 110 to transmit power to the first clutch shaft 79.

The second power transmission unit for transmitting the power of the first clutch shaft 79 to the second rotary shaft 81 is connected to the third sprocket 55 and the second rotary shaft 81 installed on the first clutch shaft 79. Between the fourth sprocket 83 to be installed, the third chain 87 connecting the third sprocket 55 and the fourth sprocket 83, and between the first clutch shaft 79 and the third sprocket 55 A second one-way clutch (not shown) in which power is transmitted from the first clutch shaft 79 to the third sprocket 55 only when the first clutch shaft 79 rotates in the direction in which the driving wheel 95 moves forward. ). The second one-way clutch has a one-way clutch applied to a conventional bicycle.

And it looks at with respect to the second power transmission means for transmitting power in a direction opposite to the power transmission direction of the first power transmission means.

The second power transmission means generates an inertia rotating body 110 when driving energy of the driving wheel 95 is required when deceleration or deceleration is required, such as when the bicycle 10 of the present invention runs downhill, or when driving at a constant speed. It is possible to decelerate the bicycle by transferring to 120 and storing it as rotational energy.

The second power transmission means is connected to or separated from the inertial rotating body 120 installed on the right side of the first rotating shaft, and when connected to the inertial rotating body 120, power is transferred from the second clutch shaft 69 to the inertial rotating body 120. The second clutch unit 60 to be transmitted, and the third power transmission unit connecting the second clutch shaft 69 and the second rotary shaft 81 are provided. In this case, the second clutch shaft 69 is rotatably installed in the frame 5. In addition, since the second clutch portion 60 has the structure of a conventional friction clutch and the same configuration as that of the first clutch portion 70 described above, a detailed description thereof will be omitted. However, the second clutch portion 60 and the first clutch portion 70 may be selectively operated by the clutch lever 14. That is, when the first clutch unit 70 is in a power connection state, the second clutch unit 60 is in a power interruption state, and when the first clutch unit 70 is in a power off state, the second clutch unit 60 is in power connection. Can be a condition. For example, in a state in which the driver releases the clutch lever 14, the first clutch unit 70 is in a power connection state, and the second clutch unit 60 is in a power off state. When the driver pulls the clutch lever 14, the first clutch unit 70 is in a power cut state and the second clutch unit 60 is in a power connection state.

The third power transmission unit is provided with the fifth sprocket 57 and the sixth sprocket 85 and the fifth sprocket 57 and the sixth sprocket 85 which are installed on the second clutch shaft 69 and the second rotation shaft 81, respectively. ) Is installed between the fourth chain 89 and the second clutch shaft 69 and the fifth sprocket 57 so that the fifth sprocket 57 rotates in the direction in which the driving wheel 95 moves forward. And a third one-way clutch (not shown) in which power is transmitted from the fifth sprocket 57 to the second clutch shaft 69. The third one-way clutch has a one-way clutch applied to a conventional bicycle. The third one-way clutch is a one-way clutch that transmits power in a direction opposite to the second one-way clutch.

Although not shown, a brake drum provided on the second rotation shaft 81 as a braking means for stopping the second rotation shaft 81 and a brake band connected to the brake lever 15 through a cable and installed inside the brake drum. Is done. In addition, the brake lever 15 may be connected to the first clutch unit 70 to increase braking efficiency during sudden braking, and may have a structure that blocks power transmission from the first rotating shaft 51 to the second rotating shaft 81 during sudden braking. have.

The operation of the bicycle 10 using the inertial rotating body according to an embodiment of the present invention configured as described above will be briefly described.

First, when the driver starts to pull the clutch lever 14 at the initial start, power is not transmitted to the first clutch shaft 79, that is, the inertia rotating body 110 and the first clutch by the first clutch unit 70. By removing the shaft 79, the inertial rotating bodies 110 and 120 are not loaded. In this state, when the driver steps on the closing moon 23, the driving force generated in the driving shaft 31 is transmitted to the first rotation shaft 51 by the first power transmission unit. As the first rotary shaft 51 rotates, the inertial rotating bodies 110 and 120 also rotate, so that the driving force generated first is stored as rotational energy in the inertial rotating bodies 110 and 120. At this time, the second clutch portion 60 is in a state of connecting the inertial rotating body 120 and the second clutch shaft 69, but power is not transmitted to the fifth sprocket 57 by the second one-way clutch.

When the driver releases the clutch lever 14 while the inertial rotating bodies 110 and 120 rotate at a constant speed, the first clutch unit 70 is in a power connection state. The two clutch portion 60 is in a power interruption state. Therefore, the rotational energy of the inertial rotating body 110 and 120 is the first clutch shaft 79, the second one-way clutch, the third sprocket 55, the fourth chain 87, the fourth sprocket 83, the third It is transmitted to the two rotation shaft 81 in turn to provide the driving force to the drive wheel (95). Thus, the present invention can greatly reduce the manpower of the driver during the initial start to start from the stationary state to facilitate the start. This effect can be especially useful for drivers without power, such as the elderly and children. This can greatly reduce the manpower compared to a normal bicycle that starts the wheel while the weight of the bicycle and the weight of the driver at the initial start.

As described above, when the bicycle 10 is started and the flat driving power is transmitted from the driving shaft 31 through the first power transmission unit, the first rotating shaft 51, and the inertial rotating body 70, the driving wheel 95. Roll.

When the driver does not step on the lung moon 23 while driving at a constant speed, the bicycle 10 is driven by inertia. In this case, the rotational force of the first rotary shaft 51 is not transmitted to the second sprocket 53 by the first one-way clutch. In addition, power is not transmitted from the second rotary shaft 81 to the first clutch shaft 79 by the second one-way clutch.

And when the clutch lever 14 is pulled down for deceleration when driving downhill, the second clutch part 60 is in a power connection state. Therefore, the power generated from the driving wheel 95 is the second rotation shaft 81, the sixth sprocket 85, the fourth chain 89, the fifth sprocket 57, the third one-way clutch, the second clutch shaft ( 69 is sequentially transmitted, and power is transmitted to the inertial rotating body 120 by the second clutch unit 60 to rotate the inertial rotating body 110 and 120 and the first rotating shaft 51. At this time, since the first clutch portion 70 is in a power cut state, power is not transmitted to the inertial rotating body 110 by the first power transmission means. In this way, by storing a portion of the power generated from the drive wheel 95 as the rotational energy in the inertial rotating body 110, 120 can be decelerated at a constant speed. Therefore, unlike a conventional bicycle that consumes a part of the power as thermal energy by the braking means during deceleration, the present invention can be stored and used again as rotational energy.

When the clutch lever 14 is released when the vehicle descends downhill and falls back on a flat or uphill road, the second clutch part 60 becomes a power cut state and the first clutch part 70 becomes a power connection state. Therefore, the rotational energy stored in the entire inertia rotation 110, 120 is transmitted to the driving wheel 95 through the first power transmission means, thereby reducing the manpower of the driver.

When the brake lever 15 is pulled at the time of sudden braking, the brake band installed inside the brake drum is pulled through the cable. In this case, the brake lever is pressed against the inner circumferential surface of the brake drum to stop the second rotating shaft 81. At the same time, the brake lever 15 may operate the first clutch unit 70 to block power transmission from the inertia rotating body 110 to the first clutch shaft 79 to increase braking efficiency.

In the above, only the rapid braking is mentioned, which operates the clutch lever 14 so that the second clutch part 60 connects the inertia rotating body 120 and the second clutch shaft 69 by the clutch lever 14. Because it can have.

On the other hand, the present invention has been described with reference to the embodiment having both the first power transmission means and the second power transmission means, it can be realized that the bicycle having only the first power transmission means. In addition, according to the present invention, only one inertial rotating body may be provided on the first rotating shaft 51, and the first clutch portion and the second clutch portion may be provided on the left and right sides of the first rotating shaft 51.

In another embodiment of the present invention, the chain and the bevel gear are used as power transmission means. The configuration of such a bicycle is schematically shown in FIG. Referring to FIG. 4, the bicycle of the present invention transmits power generated from the drive shaft 231 to the drive wheel 290 through a plurality of chains, sprockets, and bevel gears.

Briefly, in the present invention, the rear wheel acts as the driving wheel 290, and the front wheel 207 is mounted on the sixth rotation shaft 206 rotatably installed on the left and right sides of the frame 205, respectively. Therefore, the three-wheeled bicycle with two front wheels is described as an example.

The driving force generated in the driving shaft 231 connected to the crank shaft 225 by rolling the closing moon 223 is the second sprocket 241 installed on the first rotating shaft 243 through the first sprocket 235 and the first chain 236. To pass. A first one-way clutch (not shown) is installed between the drive shaft 231 and the first sprocket 235 to transmit power only from the drive shaft 231 toward the first sprocket 235. The first rotating shaft 243 is rotatably installed coaxially to the frame 205. The third sprocket 245 installed on the first rotation shaft 243 is connected to the second chain 247, and the second chain 247 is connected to the fourth sprocket 249 installed on the second rotation shaft 251. The second rotating shaft 251 is installed to the frame 205 to be rotated coaxially.

The first bevel gear 253 is installed on the other side of the second rotary shaft 251. The first bevel gear 253 is meshed with the second bevel gear 255 provided on the third rotation shaft 257 perpendicular to the second rotation shaft 251. The third rotating shaft 257 is provided coaxially to the frame 205. An inertial rotating body 210 is coupled to one end of the third rotating shaft 257, and the inertial rotating body 210 is connected to or separated from the clutch shaft 217 by the first clutch part 215. The clutch shaft 217 is rotatably mounted coaxially to the frame 205.

The third bevel gear 261 is installed on the clutch shaft 217, and the third bevel gear 261 is the fourth bevel gear 263 provided on the fourth rotation shaft 267 perpendicular to the third rotation shaft 257. Is matched with. The fourth rotating shaft 267 is rotatably installed coaxially with the frame 205. The fifth sprocket 265 installed on the fourth rotary shaft 267 is connected by the sixth sprocket 271 and the third chain 269. The sixth sprocket 271 is installed on the fifth rotation shaft 270. The fifth rotating shaft 270 is rotatably supported by the frame 205, and the driving wheel 290 is axially coupled to the center of the fifth rotating shaft 270. In addition, a second one-way clutch (not shown) is installed between the fifth rotation shaft 270 and the sixth sprocket 271 so that power is transmitted only from the sixth sprocket 271 toward the fifth rotation shaft 270.

A second clutch 280 is installed on one side of the fifth rotation shaft 270 to be coaxial with the fifth rotation shaft 270 and connected to and separated from the fifth rotation shaft 270 while sliding left and right. The second clutch portion 280 uses a conventional engagement clutch. A seventh sprocket 275 is installed in the second clutch portion 280. The second clutch part 280 is connected to the fifth rotating shaft 270 only when power is transmitted from the driving wheel 290 to the inertial rotating body 210. In addition to the above-described configuration, the bevel gear can be used to configure the power transmission in various ways.

On the other hand, in the above-described embodiments may further include a power generation system. Due to the characteristics of the conventional bicycle, sufficient rotational force required for power generation cannot be secured, and there is little effect even when a power generation system is installed. However, the present invention can secure a sufficient high-speed rotational force required for power generation using the inertial rotating body to build a self-powered system on the bicycle. The electric energy generated by this power generation system can be used to drive the devices necessary for the operation of the bicycle, for example, electric devices such as headlights and turn signals. It can also be used to drive an electric motor installed on a bicycle as an auxiliary power to roll the drive wheels.

As an example of the power generation system, a generator is installed on one side of the frame, and the generator is connected to power generation means such as a rotating shaft and a belt in which the entire inertia is installed. The electricity generated by the generator is stored in a battery installed in the frame. The electrical energy stored in this way is used to operate electric motors or electric devices.

Although the present invention has been described with reference to the embodiments illustrated in the drawings, this is merely exemplary, and it will be understood by those skilled in the art that various modifications and equivalent embodiments thereof are possible.

Therefore, the true scope of protection of the present invention should be defined only by the appended claims.

1 is a perspective view of a bicycle according to an embodiment of the present invention,

2 is a cross-sectional view of an inertial rotating body showing a first clutch part applied to FIG. 1;

3 is a conceptual diagram illustrating a configuration of the bicycle of FIG. 1;

4 is a conceptual diagram illustrating a configuration of a bicycle according to another embodiment of the present invention.

<Description of the symbols for the main parts of the drawings>

23: closed moon 31: drive shaft

35: First Sprocket 37: First Chain

41: auxiliary drive shaft 51: first rotating shaft

60: second clutch portion 70: first clutch portion

81: second rotating shaft 95: drive wheel

110: inertial rotating body

Claims (7)

A drive shaft rotatably mounted to the frame and driven by a closed moon; A first rotating shaft rotatably installed on the frame and connected to the driving shaft and a first power transmission unit; An inertial rotating body installed on the first rotating shaft to store rotational energy; A second rotating shaft rotatably mounted to the frame and having a driving wheel mounted thereon; And a first power transmission means for transmitting power of the inertial rotating body to the second rotating shaft and intermittently transmitting power. According to claim 1, wherein the first power transmission means is connected to or separated from the inertial rotating body and the first clutch portion for transmitting power to the first clutch shaft when connected to the inertial rotating body, and the first clutch shaft and And a second power transmission unit connecting the second rotation shaft. According to claim 1, The second power transmission means for transmitting power to the inertial rotating body from the second rotation shaft in the opposite direction of the power transmission direction of the first power transmission means for intermittent transmission of power; Bicycle using an inertial rotating body characterized in that it is provided. The method of claim 3, wherein the second power transmission means is connected to or separated from the inertial rotating body and the second clutch portion for transmitting power from the second clutch shaft to the inertial rotating body when connected to the inertial rotating body, And a third power transmission unit for connecting the second clutch shaft and the second rotation shaft to the bicycle. According to claim 1, wherein the first power transmission portion is a first sprocket installed on the drive shaft, an auxiliary drive shaft rotatably installed on the frame so as to be located between the drive shaft and the first rotation shaft, and one side of the auxiliary drive shaft A first auxiliary sprocket installed on the first sprocket and connected to the first chain, a second auxiliary sprocket installed on the other side of the auxiliary driving shaft, and connected by the second auxiliary sprocket and the second chain and connected to the first chain. Power is supplied from the second sprocket to the first rotation shaft only when the second sprocket is installed between the second sprocket installed on the rotation shaft and the first rotation shaft and the second sprocket in the direction in which the driving wheel moves forward. Bicycle using an inertial rotating body characterized in that it comprises a first one-way clutch to be transmitted. 3. The second power transmission unit of claim 2, wherein the second power transmission unit is mounted to connect the third sprocket and the fourth sprocket respectively installed on the first clutch shaft and the second rotation shaft, and the third sprocket and the fourth sprocket. A third chain installed between the first clutch shaft and the third sprocket, wherein power is transmitted from the first clutch shaft to the third sprocket only when the first clutch shaft rotates in a direction in which the driving wheel is advanced; Bicycle using an inertial rotating body characterized in that it comprises a two-way clutch. The third power transmission unit of claim 4, wherein the third power transmission unit is mounted to connect the fifth sprocket and the sixth sprocket respectively installed on the second clutch shaft and the second rotation shaft, and the fifth sprocket and the sixth sprocket. A third chain installed between the four chains and the second clutch shaft and the fifth sprocket, the power being transmitted from the fifth sprocket to the second clutch shaft only when the fifth sprocket rotates in a direction in which the driving wheel is advanced; Bicycle using an inertial rotating body characterized in that it is provided with a one-way clutch.

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