TW202338236A - Freewheel adjustable wheels and fitness bike therewith - Google Patents

Abstract

A freewheel adjustable wheel of the present invention comprises: a rotary gear unit that is rotated by receiving power from a pedal part and is provided with a gear along the outer circumference thereof; a case part that supports the rotary gear unit to be rotatable; a clutch bearing that transmits the power to the case part when the rotary gear unit rotates in the forward direction; a clutch hub that rotates together with the rotary gear unit; clutch gears installed on the clutch hub and fixed to the case part; and a drive unit that supplies rotational power; and a moving gear unit moved by means of the power of the driving unit.

Description

Flywheel adjustable wheel and exercise bicycle with the wheel

The invention relates to a flywheel adjustable wheel that can automatically adjust whether to transmit the power of the pedal to the wheel when the pedal rotates in reverse direction, and an exercise bicycle having the wheel.

Generally, as indoor exercise equipment for enhancing muscle strength, weight-bearing equipment for enhancing muscle strength and aerobic exercise equipment for enhancing cardiopulmonary function are widely used as fitness equipment.

Aerobic exercise equipment can be roughly divided into treadmills that allow users to walk or run on a running belt, exercise bikes that can strengthen leg muscles through rotating pedals while performing cardiopulmonary exercise, and stair climbing equipment. Effect stepper machine, etc.

The exercise bike is installed in a designated place and can be exercised by rotating the wheels by stepping on the pedals. Such exercise bikes can be divided into spinning bicycles that can perform rotational motions and indoor bicycles that rotate the wheels by forwardly rotating pedals like a bicycle.

Spinning bicycles adopt a non-freewheel structure due to the characteristics of pedaling for exercise, while indoor bicycles adopt a freewheel structure.

The non-freewheel structure used in the spinning bicycle transmits power to the wheels when the pedals are rotated forward and reversely, so the wheels rotate.

In addition, the freewheel structure used in indoor bicycles transmits power to the wheels when the pedals are rotated in the forward direction, but does not transmit power to the wheels when the pedals are rotated in the reverse direction.

Prior Art 1 (Korean Patent No. 10-1712711 B1, invention title: fixed gear and flywheel gear freely convertible crank set for single-gear bicycle) is an invention involving a device that can convert a fixed gear and a flywheel gear. The conversion between the fixed gear and the flywheel gear through the crank set provided in the prior art 1 is performed by the combination of the crank arm.

In the prior art 1, the key and the coupling piece provided on the right crank arm are coupled to the coupling hole and the crank arm fixing part respectively, so that the crank assembly is in a fixed gear state.

In addition, by rotating the right crank arm of the prior art 1 180 degrees, the coupling between the coupling piece and the coupling hole is released, and at the same time, the crank arm fixing part on the opposite side is coupled with the key, so that the crank assembly becomes a flywheel gear.

However, in the prior art 1, switching between the fixed gear and the flywheel gear requires a manual operation of moving the crank arm in a stopped motion state, so there is a problem of increasing user inconvenience.

In addition, the problem in the prior art 1 is that when switching the operation between the flywheel mode and the non-flywheel mode, only a part of the crank arm and the arm link are connected, which increases the possibility of the durability of the components being reduced, thus reducing the operation. reliability.

In addition, the problem in the prior art 1 is that since the user directly switches the position of the crank arm to switch between the flywheel mode and the non-flywheel mode, the working time increases.

Prior Art 2 (Korean Patent No. 10-1289817 B1, invention title: pedal rotation control device) is an invention involving a device for manually switching a pedal footrest between a flywheel mode and a non-flywheel mode.

In Prior Art 2, the pedal shaft is provided through the center of the pedal footrest, and a rotatable restraining protrusion is provided between the pedal footrest and the pedal shaft. The pedal footrest is switched between the flywheel mode and the non-flywheel mode according to whether the restraining protrusion is locked on the gear provided outside the pedal shaft through the rotation of the restraining protrusion.

However, a problem in the prior art 2 is that the conversion between the flywheel mode and the non-flywheel mode is performed by manually rotating the restraining protrusion, thereby aggravating the user's inconvenience.

Furthermore, the problem in the prior art 2 is that since the two restraining protrusions are latched to the latch gear provided outside the pedal shaft, the durability of the restraining protrusions is more likely to be reduced, thereby reducing the operational reliability.

In addition, there is a problem in the prior art 2 that since the flywheel mode and the non-flywheel mode are switched by a separate operation of turning the operation lever, the operation time is increased.

"The Problems Inventions Solve"

An object of the present invention is to provide a flywheel adjustable wheel capable of automatically switching between a flywheel mode and a non-flywheel mode, and an exercise bicycle provided with the wheel.

In addition, an object of the present invention is to provide a flywheel adjustable wheel that can reduce the wear of parts by expanding the meshing area of the gear when switching between the flywheel mode and the non-flywheel mode, and improve the reliability of the operation, and a wheel with the same exercise bike.

Furthermore, an object of the present invention is to provide a flywheel adjustable wheel capable of shortening the time required for switching between a flywheel mode and a non-flywheel mode, and an exercise bicycle provided with the wheel.

The purpose of the present invention is not limited to the above-mentioned purpose, and other purposes and advantages of the present invention not mentioned can be understood from the following description, and will be understood more clearly through the embodiments of the present invention. Furthermore, it is obvious that the objects and advantages of the present invention can be achieved by means and combinations thereof shown in the claims. "Technical Means to Solve Problems"

The technical feature of the flywheel adjustable wheel of the present invention and the exercise bicycle provided with the wheel, which are used to solve the above-mentioned problems, is to automatically switch the operation between the flywheel mode and the non-flywheel mode.

Specifically, since the moving gear unit can move up and down by the operation of the driving unit using the motor and synchronize the rotations of the clutch gear and the clutch hub, operation switching between the flywheel mode and the non-flywheel mode can be automatically performed.

Furthermore, a technical feature of the present invention is to expand the meshing area of the gear when switching between the flywheel mode and the non-flywheel mode.

Specifically, a clutch gear is provided on the upper side of the clutch hub, and the second moving gear portion meshing with the clutch hub and clutch gear is formed as an annular gear, so that the area meshed with the clutch hub and clutch gear is increased. Therefore, when switching between flywheel mode and non-flywheel mode, the meshing area of each gear is larger than before, thus preventing stress from being concentrated on each gear.

Furthermore, a technical feature of the present invention is to shorten the time required for switching between the flywheel mode and the non-flywheel mode.

Specifically, when the operation is switched between the flywheel mode and the non-flywheel mode, the operation is automatically switched using the driving force of the driving unit using the motor instead of being manually switched by a person. Therefore, the time required for the operation switching can be shortened.

In addition, since the moving gear part can be moved up and down by the operation of the driving part and the rotations of the clutch gear and the clutch hub can be synchronized, the flywheel mode and the non-flywheel mode can be adjusted.

The flywheel adjustable wheel of the present invention includes: a rotating gear part that rotates by receiving power from a pedal part and is provided with gears along its outer circumference; a housing part that rotatably supports the rotating gear part; and a clutch bearing that is provided on the rotating gear part. and the housing part, and transmits power to the housing part when the rotating gear part rotates forward; the clutch hub is fixed on the outside of the rotating gear part and rotates together with the rotating gear part; the clutch gear successively rotates with the clutch hub provided and fixed to the housing part; a driving part fixed to the housing part and supplying rotational power; and a moving gear part moved by the power of the driving part and in a flywheel mode meshed with the clutch hub and with the clutch hub and the clutch gear Simultaneously engaged non-freewheel mode moves.

Furthermore, the moving gear part includes: a first moving gear part; and a second moving gear part.

The first moving gear part is annularly disposed outside the clutch hub and moves in a linear direction by receiving power from the driving part.

The first moving gear section includes: a first assembly gear; and a second assembly gear. The first assembly gear is arranged on one side of the clutch hub and moves through the action of the driving part. The first assembled gear includes a first coupling protrusion. The first coupling protrusion is located inside the first assembly gear and inserted into the coupling groove portion provided outside the second moving gear portion.

The second assembly gear is disposed on the other side of the clutch hub and connected with the first assembly gear. The second assembly gear includes a second coupling protrusion. The second coupling protrusion is located inside the second assembly gear and inserted into the coupling groove.

The second moving gear part is located inside the first moving gear part and includes a gear meshing with the clutch hub and the clutch gear. The second moving gear part includes: a second moving gear body; a coupling groove part; and an inner gear.

The second moving gear body is arranged in an annular shape. The coupling groove portion is annularly formed along the outer periphery of the second moving gear body and is coupled to a protrusion protruding inward of the moving gear portion. The inner gear protrudes toward the inner side of the second moving gear body and meshes with a gear provided on the clutch gear and a gear provided on the clutch hub.

The flywheel adjustable wheel of the present invention includes: a rotating gear part, which rotates by receiving the power of the pedal part, and is provided with gears along the outer circumference; a shaft, which penetrates the inside of the rotating gear part and is arranged in the horizontal direction, and is fixed to the frame part; The cover housing is provided with a rotating gear portion and a shaft penetrating the center and is rotatably provided; the fixed housing is provided in a shape that blocks the opening of the cover housing and is restricted in rotation; and the clutch bearing is provided on the rotating gear. between the rotating gear part and the cover shell, and transmits power to the cover shell when the rotating gear part rotates forward; the clutch hub is fixed on the outside of the rotating gear part and rotates together with the rotating gear part; the clutch gear is connected to the clutch hub. The driving part is fixed to the fixed housing and supplies rotational power; and the moving gear part moves through the power of the driving part and engages with the clutch hub in a flywheel mode and with the clutch hub and the clutch The gears mesh simultaneously in a non-freewheel mode of movement.

The exercise bicycle of the present invention includes: a frame part that supports a seat tube and a handle; a pedal part that is provided on a rotating disk that is provided on the side of the frame part; and a rotating gear part that rotates by receiving power from the pedal part, and A gear is provided along the outer circumference; the housing portion rotatably supports the rotating gear portion; the clutch bearing is provided between the rotating gear portion and the housing portion, and transmits power to the housing portion when the rotating gear portion rotates forward; the clutch The hub is fixed on the outside of the rotating gear part and rotates together with the rotating gear part; the clutch gear is provided successively with the clutch hub and is fixed on the housing part; the driving part is fixed on the housing part and supplies rotational power; and moves The gear part moves by the power of the driving part, and moves in a flywheel mode that meshes with the clutch hub and in a non-flywheel mode that meshes with the clutch hub and the clutch gear simultaneously. "Comparison of Efficacy with Prior Technology"

The flywheel adjustable wheel of the present invention and the exercise bicycle having the wheel can automatically switch between the flywheel mode and the non-flywheel mode, thereby improving user convenience.

In addition, according to the present invention, the wear of parts is reduced by enlarging the meshing area of the gear when switching between the flywheel mode and the non-flywheel mode, so maintenance costs can be reduced.

In addition, according to the present invention, since the power of the driving unit is directly transmitted to the second moving gear unit, the time required for switching the operation between the flywheel mode and the non-flywheel mode is shortened, and operation reliability can be improved.

In addition, according to the present invention, since there is no need to separately purchase sports equipment using the flywheel mode and the non-flywheel mode, the purchase cost of the sports equipment can be reduced.

In addition to the above effects, specific effects of the present invention will be described below while describing specific matters for implementing the present invention. [Simple explanation of the diagram]

Figure 1 is a perspective view of an exercise bicycle equipped with a flywheel adjustable wheel according to an embodiment of the present invention; Figure 2 is a front view showing a state where the flywheel adjustable wheel is installed inside the exercise bicycle according to one embodiment of the present invention; Figure 3 is a perspective view showing a state in which a belt is connected to a flywheel adjustable wheel according to an embodiment of the present invention; Figure 4 is an exploded perspective view of an adjustable flywheel wheel according to an embodiment of the present invention; Figure 5 is a perspective view showing a state in which the moving gear part is connected to the clutch hub according to an embodiment of the present invention; Figure 6 is a perspective view showing a state in which the flywheel adjustable wheel operates in a flywheel mode according to an embodiment of the present invention; 7 is a perspective view showing a state in which the moving gear part is located on the lower side of the clutch gear according to an embodiment of the present invention; Figure 8 is a cross-sectional view showing a state in which the flywheel adjustable wheel operates in a flywheel mode according to an embodiment of the present invention; Figure 9 is a cross-sectional view showing a state in which the flywheel adjustable wheel transmits power in the flywheel mode according to an embodiment of the present invention; Figure 10 is a perspective view showing a state in which the flywheel adjustable wheel operates in a non-flywheel mode according to an embodiment of the present invention; FIG. 11 is a perspective view showing a state in which the moving gear part and the clutch gear are connected according to an embodiment of the present invention; Figure 12 is a cross-sectional view showing a state in which the flywheel adjustable wheel operates in a non-flywheel mode according to an embodiment of the present invention; and 13 is a cross-sectional view showing a state in which the flywheel adjustable wheel transmits power in a non-flywheel mode according to an embodiment of the present invention.

The aforementioned objects, features and advantages will be described in detail later with reference to the accompanying drawings, so that those of ordinary skill in the art to which the present invention belongs will be able to easily implement the technical idea of the present invention. In describing the present invention, when it is judged that detailed description of known technologies related to the present invention may unnecessarily obscure the gist of the present invention, detailed description will be omitted. The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The same reference numerals in the drawings are used to refer to the same or similar constituent elements.

Although first, second, etc. are used to describe various constituent elements, these constituent elements are of course not limited by these terms. These terms are only used to distinguish one constituent element from other constituent elements, and unless otherwise stated to the contrary, the first constituent element may of course also be the second constituent element.

Hereinafter, the term “upper (or lower)” of a constituent element or “upper (or lower)” constituent elements means that any member is arranged other than an arbitrary member relative to the upper surface (or lower surface) of the constituent element. In addition to being arranged sequentially, there may be another member interposed between the component element and any component arranged above (or below) the component element.

In addition, when it is described that a certain structural element is "connected", "combined" or "connected" to another structural element, it should be understood that these structural elements may be directly connected or connected, but other structural elements may also be "interposed". ” Each constituent element is “connected”, “combined” or “connected” to each other or to each other through other constituent elements.

Throughout the specification, unless otherwise stated to the contrary, each component is represented by a singular number or a plural number.

Unless the context clearly defines otherwise, singular expressions used in this specification include plural expressions. In this application, terms such as "consisting of" or "comprises" should not be interpreted as necessarily including all of the plurality of constituent elements or plurality of steps described in the specification, but should be interpreted as meaning some of the constituent elements. Or some steps may not be included, or additional constituent elements or steps may be further included.

Throughout this specification, when "A and/or B" is used, unless stated otherwise, it means A, B or A and B, and when referring to "C to D", unless stated otherwise, , means above C and below D.

The flywheel adjustable wheel 200 and the exercise bicycle 1 having the wheel according to an embodiment of the present invention will be described below.

FIG. 1 is a perspective view of an exercise bicycle 1 with an adjustable flywheel wheel 200 according to an embodiment of the present invention; and FIG. 2 is a perspective view of an exercise bicycle 1 with an adjustable flywheel wheel 200 according to an embodiment of the present invention. Front view of the state.

As shown in Figures 1 and 2, the exercise bike 1 can operate in a flywheel mode and a non-flywheel mode. The motion of the exercise bicycle 1 is switched between the flywheel mode and the non-flywheel mode by the motion of the drive unit 270 using the motor.

Since the exercise bicycle 1 uses the one-way clutch bearing 240 (One way clutch Bearing), power is transmitted only when rotating in the forward direction. In addition, power is transmitted through the moving gear unit 280 operated by the driving unit 270 even during reverse rotation, so the unit operates in the non-flywheel mode.

When the exercise bicycle 1 operates in the flywheel mode, power is transmitted through the clutch bearing 240, so low-noise driving can be achieved, and the thickness and size of the product can be significantly reduced compared with previous exercise bicycles.

When the exercise bicycle 1 operates in the non-flywheel mode, the gear provided at the moving gear portion 280 connects the gear of the clutch hub 250 and the gear of the clutch gear 260 to transmit power.

Regarding the exercise bicycle, various modifications can be made within the technical idea of controlling the flywheel mode action and the non-flywheel mode action by operating the driving part 270 to move the moving gear part 280 . A flywheel adjustable wheel 200 is provided inside the exercise bicycle 1 , and a driving part 270 is provided in the flywheel adjustable wheel 200 .

The moving gear part 280 moves through the action of the driving part 270, and adjusts the transmission of power through the action of the moving gear part 280 meshing only with the clutch hub 250 or meshing with the clutch gear 260 and the clutch hub 250 simultaneously, so the flywheel mode and non-flywheel mode can be adjusted model.

The exercise bicycle 1 according to an embodiment of the present invention may include a frame part 10, a belt 20, a rotating disk 30, a pedal part 40, a rotating support shaft 50, a base part 60, a seat shell part 70, a handle 80, a display part 90, and a seat tube. 100, at least one of the seat 110 and the flywheel adjustable wheel 200.

The frame part 10 can be variously deformed within the technical idea of forming the main body of the exercise bicycle 1 . The frame part 10 according to an embodiment of the present invention includes: an outer frame 12; an inner frame 14; and a side frame 16.

As for the outer frame 12, both sides are open, located on the upper side of the base portion 60, and fixed to the seat tube 100. The inner side of the outer frame 12 is provided with a flywheel adjustable wheel 200, a rotating disk 30 and an inner disk 31.

The outer frame 12 is generally a "U"-shaped frame, and an inner frame 14 is provided inside the outer frame 12 . The inner frame 14 supports the flywheel adjustable wheel 200 on the inner side of the frame part 10 . The inner frame 14 has a shape connected with a plurality of beam members. One side of the inner frame 14 is fixed to the seat tube 100 , and the other side supports the shaft 220 of the freewheel adjustable wheel 200 .

The side frames 16 are coupled to the two open sides of the outer frame 12 . The side frames 16 are plate-shaped and are detachably provided on both sides of the outer frame 12, so that repair and replacement of parts of the exercise bicycle 1 can be easily performed.

Such frame portion 10 can be formed into various structures according to the load distribution and structure of the exercise bicycle 1 .

The rotation support shaft 50 is located inside the frame part 10 and is provided in the horizontal direction. Both sides of the rotation support shaft 50 may be connected to the inner disk 31 . Both sides of the rotation support shaft 50 in one embodiment of the present invention are connected to the center of the inner disk 31 .

The disk-shaped rotating disk 30 is fixed to the outside of the inner disk 31 , and a pedal is detachably provided on the edge of the rotating disk 30 . The pedal is fixed to the rotating plate 30 at right angles to the rotating plate 30 . Therefore, when the user steps on the pedal, the rotating disk 30 and the inner disk 31 rotate around the rotation support shaft 50 .

The rotating disk 30 is formed in the form of a circular panel. The side frame 16 has a circular hole shape to accommodate the rotating disk 30 . Since the rotating disk 30 and the inner disk 31 are provided in the circular holes provided in the side frame 16, parts located inside the frame part 10 can be shielded.

Therefore, it is possible to prevent users, young children, and pets from approaching the inside of the frame part 10 and to prevent parts located inside the frame part 10 from being pinched when the pedal is rotated.

Since the belt 20 spans the outer edge of the inner disk 31 , the rotation of the inner disk 31 causes the rotation gear portion 210 provided on the flywheel adjustable wheel 200 to rotate. One side of the belt 20 is connected to the inner disk 31 , and the other side of the belt 20 is connected to the pulley member 212 of the rotating gear portion 210 .

The pedal part 40 is rotatably provided on the rotating disk 30 installed on the side of the frame part 10 . The pedal part 40 is coupled to the rotating disk 30 by rotating and coupling to the fastening groove provided in the rotating disk 30 . In addition, the rotating disk 30 rotates together with the pedal part 40 .

The rotation support shaft 50 is provided so as to penetrate the center portions of the rotation disk 30 and the inner disk 31 that are rotated by the pedal. The rotating disk 30 and the inner disk 31 function as a driving wheel and are connected through a pulley member 212 of the rotating gear unit 210 to be described later and a power transmission member such as a belt or a chain. When the user steps on the pedal, the rotating disk 30 and the inner disk 31 rotate. As the inner disk 31 rotates, the belt 20 and the rotating gear unit 210 rotate. Since the rotating disk 30 blocks the hole provided in the side frame 16, injuries to the user or young children due to the rotation of the pedal part 40 can be reduced.

The base portion 60 is provided on the lower side of the frame portion 10 to support the frame portion 10 . The base portion 60 is spaced apart from the lower side of the frame portion 10 and is provided in a plate shape. Such base portion 60 can be formed into various shapes.

The seat shell portion 70 is provided on the upper side of the base portion 60 . The seat shell portion 70 has an angular tube shape, extends toward the upper side of the base portion 60 and penetrates the inside of the frame portion 10 . The lower side of the seat shell part 70 is fixed to the base part 60 . In addition, since the frame part 10 is fixed to the seat shell part 70 , the frame part 10 is provided on the upper side away from the base part 60 .

The seat shell part 70 may be arranged to be inclined in the up-down direction of the frame part 10 . The seat shell part 70 of the seat part 110 is provided between the rotation support shaft 50 and the shaft 220 . Such a seat shell part 70 may be formed in the form of a polygonal tube or a circular tube.

A handle 80 that a user can hold is provided on one side of the frame part 10 . A display unit 90 is provided on the upper side of the frame unit 10 adjacent to the handle 80 so that the operating state and exercise record of the exercise bicycle 1 can be easily confirmed.

The display unit 90 can output exercise information such as the speed of the exercise bicycle 1 , rotation load, and the like on the screen.

The seat tube 100 that supports the lower side of the seat portion 110 is provided on the upper side of the seat shell portion 70 . The seat tube 100 may be disposed inside the seat shell part 70 in a height-adjustable manner. Of course, the seat tube 100 can be fixed inside the seat shell part 70 . The cross section of the seat tube 100 can be formed in various shapes according to the shape of the seat shell part 70 .

Since the seat tube 100 is disposed on the seat shell 70 in a height-adjustable manner, the height of the seat 110 can be appropriately adjusted according to the user's height, physical condition, and movement tendency.

In the exercise bicycle 1 of the present invention, the flywheel adjustable wheel 200 may be provided on the rear side or the front side based on the rotation support shaft 50 . Depending on the installation position of the flywheel adjustable wheel 200, the form of the frame portion 10 changes. In addition, the positions of the rotation support shaft 50 and the shaft 220 are also changed.

FIG. 3 is a perspective view showing a state in which the belt 20 is connected to the flywheel adjustable wheel 200 according to an embodiment of the present invention; FIG. 4 is an exploded perspective view of the flywheel adjustable wheel 200 according to an embodiment of the present invention; FIG. 5 is a diagram showing A perspective view of a state in which the moving gear portion 280 is connected to the clutch hub 250 according to an embodiment of the present invention; FIG. 6 is a perspective view showing a state in which the flywheel adjustable wheel 200 operates in a flywheel mode according to an embodiment of the present invention; and FIG. 7 This is a perspective view showing a state in which the moving gear portion 280 is located on the lower side of the clutch gear 260 according to an embodiment of the present invention.

As shown in Figures 3 to 7, the flywheel adjustable wheel 200 includes: a rotating gear part 210; a shaft 220; a housing part 230; a clutch bearing 240; a clutch hub 250; a clutch gear 260; a driving part 270; a moving gear part 280; stator 310; and bearing portion 320.

The rotating gear portion 210 can be modified in various ways within the technical concept of being rotated by receiving power from the pedal portion 40 and having gears along the outer periphery. The rotating gear part 210 according to an embodiment of the present invention includes: a pulley member 212; and a rotating body 214.

The pulley member 212 is connected to the belt 20 and rotates by receiving power from the pedal portion 40 . Since gears are provided along the outer periphery of the pulley member 212, the slipping phenomenon of the pulley member 212 straddling the outside of the pulley member 212 can be reduced. The pulley component 212 is located outside the housing part 230 and receives the power of the pedal part 40 through the belt 20 .

The rotating body 214 extends from the pulley member 212 toward the inside of the housing portion 230 and rotates together with the pulley member 212 . The rotating body 214 in one embodiment of the present invention is tubular.

The rotating gear part 210 is provided in the housing part 230 so as to rotate by receiving power from the pedal part 40 . The shaft 220 is provided inside the rotation gear portion 210 . Both sides of the shaft 220 are coupled to the inner frame 14 in a non-rotational manner. The rotating gear part 210 is inserted outside the shaft 220 . The rotation gear portion 210 is provided concentrically with the shaft 220 . The shaft bearing 324 is provided between the shaft 220 and the rotating gear portion 210 . Therefore, when the rotating gear portion 210 rotates through the belt 20, the shaft 220 does not rotate.

The shaft 220 penetrates the inside of the rotating gear part 210 and is provided in the horizontal direction, and is fixed to the frame part 10 . The shaft 220 in one embodiment of the present invention has a rod shape and is disposed in a shape penetrating the rotation center of the housing portion 230 .

The housing part 230 may be deformed in various ways within the technical concept of rotatably supporting the rotating gear part 210 and being disposed inside the frame part 10 . The housing part 230 of an embodiment of the present invention includes: a cover housing 232; and a fixed housing 234.

The cover housing 232 rotates together with the clutch gear 260 and receives the rotational power generated by the forward rotation through the clutch bearing 240 . The cover housing 232 includes: a rotating cover housing 232; and a fixed housing 234, which is fixed to the frame part 10. Various modifications can be made to the cover case 232 within the technical concept of a shape provided to surround the clutch bearing 240 and the moving gear portion 280 .

The cover case 232 is provided with a rotation gear portion 210 and a shaft 220 penetrating the center thereof, and is rotatably provided. The cover housing 232 is axially coupled to the rotating gear portion 210 and rotates in a freewheel mode and a non-freewheel mode. The rotation gear part 210 is coupled to the rotation center of the cover housing 232 .

In the flywheel mode, when the rotating gear part 210 rotates forward, the cover housing 232 rotates forward; when the rotating gear part 210 rotates reversely, the cover housing 232 does not rotate. In the flywheel mode, when the rotating gear part 210 rotates reversely, the cover housing 232 does not rotate, and the rotating gear part 210 idles in the cover housing 232 .

In the non-flywheel mode, the cover housing 232 rotates in all cases where the rotating gear portion 210 rotates forward or reverse. In the non-flywheel mode, the power input through the rotating gear part 210 is transmitted through the moving gear part 280 , so the cover case 232 rotates together with the rotating gear part 210 .

The fixed housing 234 supports the driving part 270 and is provided in the opening of the cover housing 232 . Various modifications can be made to the fixed housing 234 within the technical concept of being provided in a shape that blocks the opening of the cover housing 232 and is rotationally restricted.

The cover housing 232 according to an embodiment of the present invention includes: an outer housing 233; and an inner rib 236. The rotating gear part 210 is rotatably coupled to the cover housing 232 . The cover housing 232 may be formed into a disk shape as a whole. The rotating gear part 210 penetrates the center part of the cover housing 232 . The outer case 233 may be formed around the cover case 232 so as to surround the stator 310 to be described later.

The outer housing 233 protruding in the vertical direction from the edge of the cover housing 232 is provided in an annular shape and faces the outer side of the edge of the fixed housing 234 .

The inner rib 236 is provided on the inner side of the outer housing 233 . The inner rib 236 and the outer shell 233 are arranged in an annular shape, and the diameter of the inner rib 236 is formed smaller than the diameter of the outer shell 233 . In addition, the stator 310 and the wheel bearing portion 322 are provided between the outer case 233 and the inner rib 236 . The inner rib 236 protrudes from the inner side of the cover housing 232 in the direction toward the fixed housing 234 .

The wheel bearing portion 322 is provided between the inner case 235 and the inner rib 236 of the fixed case 234 to be described later.

The fixed housing 234 is formed in a disk shape, and the inner housing 235 extending from the fixed housing 234 extends in an annular shape. The diameter of the inner shell 235 is larger than the diameter of the inner rib 236 and smaller than the diameter of the outer shell 233 .

Therefore, the stator 310 is provided between the outer case 233 and the inner case 235 , and the wheel bearing portion 322 is provided between the inner case 235 and the inner rib 236 . When the cover housing 232 rotates in a state where the rotation of the fixed housing 234 is restricted, friction is reduced by the wheel bearing portion 322 provided between the cover housing 232 and the fixed housing 234 .

The clutch bearing 240 may be deformed in various ways within the technical concept of being disposed between the rotating gear part 210 and the housing part 230 and transmitting power to the housing part 230 when the rotating gear part 210 rotates forward.

The clutch bearing 240 is provided between the cover housing 232 and the rotating gear portion 210 . In the center of the cover housing 232, an annular receiving groove for receiving the clutch bearing 240 may be formed. The seating groove is concentric with the rotating gear portion 210 and the cover housing 232 . The clutch bearing 240 is a one-way bearing that allows the rotating gear portion 210 to rotate in only one direction. The clutch bearing 240 transmits power so that the rotating gear portion 210 and the cover case 232 rotate together when the rotating gear portion 210 rotates forward. In addition, when the rotating gear part 210 rotates in the reverse direction, only the rotating gear part 210 rotates and no power is transmitted to the cover case 232 .

The clutch bearing 240 rotates the cover housing 232 only when the rotating gear portion 210 rotates forward, thereby realizing the flywheel mode of the cover housing 232 . The clutch bearing 240 has a structure in which a bearing (not shown) is interposed between an inner wheel (not shown) and an outer wheel (not shown). When the clutch bearing 240 rotates in the forward direction, the inner wheel and the outer wheel are constrained by the bearing to rotate as one. In addition, during reverse rotation, the bearing releases the constraints of the inner and outer wheels. Bearings can take various forms such as ball form and round rod form. For such a clutch bearing 240, various deformations can be made within the technical idea of rotating the cover housing 232 only when the rotating gear portion 210 rotates forward.

Various modifications can be made to the clutch hub 250 within the technical concept of being fixed to the outside of the rotating gear portion 210 and rotating together with the rotating gear portion 210 . The clutch hub 250 is coupled to the outside of the rotating gear portion 210 . The clutch hub 250 is disposed concentrically with the rotating gear portion 210 . The first outer gear 254 is formed on the circumference of the clutch hub 250 .

The first outer gear 254 is an external gear formed along the outer peripheral surface of the clutch hub 250 . The clutch hub 250 rotates together with the rotating gear portion 210 with reference to the center of the rotating gear portion 210 but is fixed to the rotating gear portion 210 so as not to move in the axial direction of the rotating gear portion 210 . At this time, the rotating gear part 210 may be pressed into the center part of the clutch hub 250 or the gear may be coupled to the center part of the clutch hub 250 . Clutch hub 250 may be formed in an annular disk form.

A clutch hub 250 according to an embodiment of the present invention includes: a hub body 252; and a first outer gear 254. The center of the hub body 252 coincides with the rotating body 214 and has a disk shape fixed to the outside of the rotating body 214 .

The first outer gear 254 is a protrusion-shaped gear provided along the outer circumference of the hub body 252 and extending in the up-down direction.

Various modifications can be made to the clutch gear 260 within the technical concept of being provided successively with the clutch hub 250 and fixed to the housing portion 230 . The clutch gear 260 according to an embodiment of the present invention is fixed to the cover housing 232 and rotates together with the cover housing 232 . The clutch gear 260 is provided in a ring shape and has the same center as the rotation gear portion 210 . Furthermore, the center of the clutch gear 260 is the same as the center of the cover housing 232 . The clutch gear 260 according to an embodiment of the present invention includes: a gear body 262; and a second outer gear 264.

The gear body 262 is annularly arranged inside the cover housing 232 and fixed to the cover housing 232 . The gear body 262 is fixed to the cover housing 232 and rotates together with the cover housing 232 .

The second outer gear 264 protrudes toward the outside of the gear body 262 and meshes with the moving gear portion 280 to receive power. The second outer gear 264 is provided with a gear with an inclined surface in the direction toward the clutch hub 250 so as to mesh with the second moving gear portion 300 provided in the moving gear portion 280 .

The second outer gear 264 according to an embodiment of the present invention includes: a first linear gear 266; and a first inclined gear 268. The first linear gear 266 is a gear that protrudes along the peripheral portion of the second outer gear 264 and extends in the up-down direction.

The first inclined gear 268 is an inclined surface formed at an end portion of the first linear gear 266 . When the first outer gear 254 of the clutch hub 250 is disposed on the lower side of the second outer gear 264 , the first inclined gear 268 is connected to the lower side of the first linear gear 266 .

The first tilt gear 268 has a normal cross-sectional shape formed in a right-angled triangle shape. The first slope gear 268 forms a slope toward the clutch hub 250 . A plurality of first inclined gears 268 are provided along the circumference of the gear body 262, and the plurality of first inclined gears 268 have the same inclination angle.

The driving part 270 can be variously modified within the technical concept of being fixed to the housing part 230 and supplying rotational power to move the moving gear part 280 . The driving part 270 according to an embodiment of the present invention includes: a driving body 272; and an output shaft 274. In addition, the driving part 270 may also include: a motor bracket 276; and a motor housing 278.

The driving body 272 is fixed to the fixed housing 234 and supplies rotational power. The driving body 272 can be directly fixed to the fixed housing 234, or can be fixed to the fixed housing 234 using the motor bracket 276 and the motor housing 278. The motor bracket 276 surrounds one side of the driving body 272 and is fixed to the fixed housing 234 . The motor housing 278 forms an inner space into which the driving body 272 is inserted and is fixed to the fixed housing 234 .

The driving body 272 operates a motor, and the output shaft 274 protruding toward the outside of the driving body 272 is rotated by the movement of the driving body 272 . The output shaft 274 protrudes toward the outside of the driving body 272 , rotates through the operation of the driving body 272 , and is connected to the moving gear portion 280 to move the moving gear portion 280 . The output shaft 274 according to an embodiment of the present invention is formed in the shape of a ball screw and is gear-coupled with the moving gear portion 280 . The moving gear unit 280 is provided in a rotation-restricted state, and therefore moves in the linear direction through the rotation of the output shaft 274 .

The moving gear portion 280 is moved by the power of the driving portion 270 and moves in a flywheel mode that engages with the clutch hub 250 and in a non-flywheel mode that engages with the clutch hub 250 and the clutch gear 260 simultaneously.

The moving gear portion 280 is disposed outside the clutch hub 250 and meshes with only the clutch hub 250 or simultaneously with the clutch hub 250 and the clutch gear 260 to transmit power.

When the moving gear part 280 only meshes with the clutch hub 250, the power of the forward rotation pedal is transmitted to the cover housing 232 through the rotating gear part 210 and the clutch bearing 240, causing the cover housing 232 to rotate. In addition, since the power of the reverse rotation pedal only rotates the rotation gear part 210, the clutch hub 250, and the second moving gear part 300 of the moving gear part 280, no rotational power is transmitted to the cover case 232. Thus, only when the rotating gear portion 210 rotates forward, the rotations of the clutch bearing 240 and the cover housing 232 are synchronized, so that the flywheel adjustable wheel 200 is driven in the flywheel mode.

Additionally, the non-flywheel mode is operated when the moving gear portion 280 is simultaneously engaged with the clutch hub 250 and clutch gear 260 to synchronize rotation. In the non-flywheel mode, the power of the pedal is transmitted in the order of the rotating gear part 210, the clutch hub 250, the second moving gear part 300, and the clutch gear 260. In addition, regarding the power of forward rotation, the power of the pedal may be transmitted in the order of the rotating gear part 210, the clutch bearing 240, and the cover case 232. Since the second moving gear portion 300 that is simultaneously meshed with the clutch hub 250 and the clutch gear 260 transmits the power of forward rotation and reverse rotation, it operates in the non-flywheel mode.

The moving gear part 280 according to an embodiment of the present invention includes: a first moving gear part 290; and a second moving gear part 300. Various modifications can be made to the first moving gear portion 290 within the technical concept of being annularly disposed outside the clutch hub 250 and moving in a linear direction by receiving power from the driving portion 270 . The first moving gear part 290 according to an embodiment of the present invention includes: a first assembly gear 292; and a second assembly gear 296.

The first assembly gear 292 and the second assembly gear 296 are assembled with each other and arranged in an annular shape. The first assembly gear 292 is provided on one side of the clutch hub 250 and moves through the action of the driving part 270 . The first assembly gear 292 extends along a curved shape, and is provided with a first coupling protrusion 294 inserted into the coupling groove portion 304 provided on the outside of the second moving gear portion 300 on the inside of the first assembly gear 292 .

In addition, an internal thread hole is provided in the extension part 295 protruding toward the outside of the first assembly gear 292, and the output shaft 274 provided in the driving part 270 is inserted into the internal thread hole provided in the extension part 295 to be connected with the gear. Therefore, the first assembly gear 292 including the extension member 295 moves upward or downward based on the rotation direction of the output shaft 274 .

The second assembly gear 296 is provided on the other side of the clutch hub 250 and connected with the first assembly gear 292 . A second coupling protrusion 298 inserted into the coupling groove portion 304 is provided on the inner side of the second assembly gear 296 extending in a curved shape.

The first assembly gear 292 and the second assembly gear 296 are combined to form a first moving gear part 290. The first moving gear part 290 moves to a position facing the clutch hub through the power of the driving part 270, or moves to a position facing the clutch hub 250. The position where the clutch gear meshes.

In addition, since the first coupling protrusion 294 protruding inward of the first assembly gear 292 and the second coupling protrusion 298 protruding inward of the second assembly gear 296 are inserted into the coupling groove portion 304 formed outside the second moving gear portion 300, Inside, the second moving gear part 300 also moves together through the action of the first moving gear part 290.

The second moving gear part 300 is located inside the first moving gear part 290 and includes a gear meshing with the clutch hub 250 and the clutch gear 260 .

The second moving gear portion 300 is formed in an annular shape concentrically with the clutch gear 260 and the clutch hub 250 . The inner peripheral surface of the second moving gear portion 300 includes an inner gear 306 formed in an internal gear form so as to mesh with the clutch hub 250 and the clutch gear 260 .

The inner gear 306 moves to one side in the axial direction of the rotating gear portion 210 and meshes with the clutch hub 250 only, or moves to the other side in the axial direction of the rotating gear portion 210 and meshes with the clutch hub 250 and the clutch gear 260 simultaneously.

The second moving gear part 300 according to an embodiment of the present invention includes: a second moving gear body 302; a coupling groove part 304; and an inner gear 306.

The second moving gear body 302 is provided in an annular shape. The outer diameter of the second moving gear body 302 is larger than the outer diameter of the clutch hub 250 . The second moving gear body 302 is provided between the clutch hub 250 and the first moving gear portion 290 .

Various modifications can be made to the coupling groove portion 304 within the technical concept of coupling with the protrusion protruding inward of the moving gear portion 280 . The coupling groove portion 304 according to an embodiment of the present invention is annularly formed along the outer periphery of the second moving gear body 302 . The coupling groove part 304 is coupled to the first coupling protrusion 294 and the second coupling protrusion 298 which are protrusions protruding inward of the first moving gear part 290 . The coupling groove portion 304 forms a groove along an arc shape, and the first coupling protrusion 294 and the second coupling protrusion 298 that are plug-fitted to the coupling groove portion 304 are also arranged along an arc shape, so the second moving gear portion 300 can be The inner side of the first moving gear portion 290 rotates. However, in a state where the first moving gear portion 290 does not move in the axial direction of the rotating gear portion 210 , the second moving gear portion 300 alone is prevented from moving in the axial direction of the rotating gear portion 210 .

As for the inner gear 306, various deformations can be made within the technical concept of a plurality of inner gears 306 protruding along the inner circumference of the second moving gear body 302 and meshing with the gear provided at the clutch gear 260 and the gear provided at the clutch hub 250. . The inner gear 306 according to an embodiment of the present invention includes: a second linear gear 308; and a second inclined gear 309.

The second linear gear 308 is a gear extending in the up-down direction along the inner circumference of the second moving gear body 302 .

The second inclined gear 309 is an inclined surface formed at the end of the second linear gear 308 . When the clutch gear 260 is provided on the clutch hub 250, the second inclined gear 309 is provided on the upper side of the second linear gear 308.

The inclined surface of the second inclined gear 309 is provided at an angle corresponding to the inclined surface of the first inclined gear 268 . The second tilt gear 309 is formed in a right triangle shape. The second inclined gear 309 forms an inclined surface toward the first inclined gear 268 . A plurality of second tilt gears 309 are provided along the inner circumference of the second moving gear portion 300, and the plurality of second tilt gears 309 have the same tilt angle.

Since the shape of the second outer gear 264 provided in the clutch gear 260 has an angle in one direction, and the shape of the corresponding inner gear 306 also has an opposite angle to the second outer gear 264 in one direction, when When the moving gear portion 280 moves upward, the inner gear 306 rotates in one direction and linearly moves in the up and down direction. Therefore, the moving inner gear 306 meshes with the fixed second outer gear 264 to transmit power quickly and accurately.

The bearing portion 320 that rotatably supports parts rotating in the flywheel adjustable wheel 200 has a plurality of bearings. The bearing part 320 according to an embodiment of the present invention includes: a wheel bearing part 322; and a shaft bearing 324.

Since the wheel bearing portion 322 is provided between the inner rib 236 of the cover case 232 and the inner case 235 of the fixed case 234, the occurrence of occurrences between the fixed case 234 whose rotation is restricted and the cover case 232 which rotates is reduced. of friction.

The shaft bearing 324 is provided between the shaft 220 and the rotating gear part 210 and reduces friction generated when the shaft 220 rotates.

The stator 310 is fixed to the fixed housing 234 and is arranged annularly along the edge of the fixed housing 234 . The stator 310 applies a magnetic force to the cover housing 232 to adjust the rotational load of the cover housing 232 . The stator 310 is fixed to the stationary housing 234 to constrain rotation. The stator 310 is an electromagnet with a coil wound around an iron core. As power is applied to the coil, magnetic force is generated in the stator 310. The magnetic strength of the stator 310 can be adjusted by adjusting the current applied to the coils of the stator 310 .

When the magnetic strength of the stator 310 increases, the rotation load of the cover case 232 increases, and therefore the pedaling force increases. When the magnetic strength of the stator 310 decreases, the rotation load of the cover case 232 decreases, and therefore the pedaling force decreases. The rotation load of the cover housing 232 can be adjusted by adjusting the magnetic strength of the stator 310 to adjust the user's pedaling force.

The stator 310 is fixed to the fixed housing 234 so as not to rotate together with the cover housing 232 , and the fixed housing 234 is fixed to the frame part 10 . The fixed housing 234 can be fixed to the frame part 10 through fastening components such as bolts and rivets. The rotating gear part 210 and the shaft 220 are provided in the center of the fixed housing 234 so as to penetrate therethrough.

Since the stator 310 is annularly disposed on the periphery of the fixed housing 234, when the radius of the stator 310 is maximized, the stator 310 can be formed to be as large as possible. In addition, as the size of the stator 310 increases, the maximum magnetic force generated in the stator 310 may further become larger, and therefore the adjustment range of the rotational load applied to the cover housing 232 may further increase.

Furthermore, when the stator 310 is disposed in the radial direction of the moving gear portion 280 and the clutch hub 250, the disposed thickness of the cover case 232 and the stator 310 can be significantly reduced. Therefore, the distance between the pedals on both sides can be reduced by making the thickness of the cover case 232 in the exercise bicycle 1 relatively thin, so the design freedom of the exercise bicycle 1 can be significantly improved.

The working state of the flywheel adjustable wheel 200 and the exercise bicycle 1 having the wheel according to an embodiment of the present invention will be described in detail below with reference to the accompanying drawings.

8 is a cross-sectional view illustrating the flywheel adjustable wheel 200 operating in the flywheel mode according to an embodiment of the present invention; and FIG. 9 is a sectional view illustrating the flywheel adjustable wheel 200 transmitting power in the flywheel mode according to an embodiment of the present invention. Cross-sectional view of the state.

As shown in FIGS. 8 and 9 , when the second moving gear portion 300 is only engaged with the clutch hub 250 , the power to rotate the clutch hub 250 is not transmitted to the cover case 232 . In addition, when the pedal is rotated in the forward direction, the rotating gear portion 210 also rotates in the forward direction. When the rotating gear part 210 rotates forward, the power to rotate the rotating gear part 210 is transmitted to the cover housing 232 through the clutch bearing 240, so the cover housing 232 rotates forward. Therefore, the freewheel adjustable wheel 200 and the exercise bike 1 having the wheel operate in the freewheel mode.

FIG. 10 is a perspective view showing a state in which the flywheel adjustable wheel 200 operates in a non-flywheel mode according to an embodiment of the present invention; FIG. 11 shows a state in which the moving gear portion 280 and the clutch gear 260 are connected according to an embodiment of the present invention. FIG. 12 is a cross-sectional view showing the flywheel adjustable wheel 200 operating in a non-flywheel mode according to an embodiment of the present invention; and FIG. 13 is a sectional view showing the flywheel adjustable wheel 200 according to an embodiment of the present invention in a non-flywheel mode. Cross-sectional view of power transmission in flywheel mode.

As shown in FIGS. 10 to 13 , when the second moving gear part 300 meshes with the clutch hub 250 and the clutch gear 260 , the power to rotate the clutch hub 250 rotates the clutch gear 260 through the second moving gear part 300 . Since the clutch gear 260 is fixed to the cover housing 232 , the cover housing 232 rotates together with the clutch gear 260 .

Therefore, when the pedal is rotated in the forward or reverse direction, the rotating gear portion 210 also rotates in the forward or reverse direction. Therefore, the freewheel adjustable wheel 200 and the exercise bike 1 having the wheel operate in a non-freewheel mode.

When the flywheel adjustable wheel 200 and the exercise bicycle 1 having the wheel are in the flywheel mode, noiselessness can be achieved through the action of the clutch bearing 240 .

When the flywheel adjustable wheel 200 and the exercise bicycle 1 having the wheel are in the flywheel mode, the clutch hub 250 and the clutch gear 260 rotate together through the second moving gear part 300, so the cover housing 232 rotates together with the rotating gear part 210 .

In addition, since the moving gear part 280 including the second moving gear part 300 and the driving part 270 that moves the moving gear part 280 are provided in one stage inside the housing part 230, the size and thickness of the housing part 230 can be reduced, and it is possible to The design freedom of the flywheel adjustable wheel 200 is increased.

In addition, since the driving part 270 using a motor is provided inside the flywheel adjustable wheel 200, the user can switch between the flywheel mode and the non-flywheel mode without getting off the exercise bicycle 1, thus improving the convenience of use.

Although the present invention has been described with reference to the illustrative drawings as described above, the present invention is not limited to the embodiments and drawings disclosed in this specification. It is obvious that those of ordinary skill in the art can work within the scope of the technical ideas of the present invention. Perform various transformations within. At the same time, in the foregoing description of the embodiments of the present invention, even if the effects brought by the configuration of the present invention are not explicitly described, it is of course recognized that the effects can be predicted from the corresponding configuration.

1: Exercise bike 10: Frame Department 12:Outer frame 14:Inside frame 16:Side frame 20: belt 30: Rotating disk 31:Inner disc 40: Pedal part 50: Rotating support shaft 60: base 70: Seat shell part 80: handle 90:Display Department 100:Seat post 110:Zabu 200: Flywheel adjustable wheel 210: Rotary gear part 212: Pulley parts 214: Rotate body 220:shaft 230: Shell part 232: cover shell 233:Outer shell 234:Fixed shell 235:Inner shell 236: Medial rib 240:Clutch bearing 250:Clutch hub 252:hub body 254:First outer gear 260:Clutch gear 262:Gear body 264:Second outer gear 266:First linear gear 268:First tilt gear 270:Drive Department 272: Drive body 274:Output shaft 276:Motor bracket 278:Motor housing 280:Mobile gear section 290: First moving gear part 292: First assembly gear 294:First binding protrusion 295:Extended parts 296: Second assembly gear 298:Second binding protrusion 300: Second moving gear unit 302: Second moving gear body 304: Combining groove part 306:Inner gear 308: Second linear gear 309: Second tilt gear 310:Stator 320:Bearing Department 322: Wheel bearing department 324: Shaft bearings

210: Rotary gear part

212: Pulley parts

214: Rotate body

220:shaft

230: Shell part

232: cover shell

233:Outer shell

234:Fixed shell

235:Inner shell

240:Clutch bearing

250:Clutch hub

252:hub body

254:First outer gear

260:Clutch gear

262:Gear body

264:Second outer gear

270:Drive Department

272: Drive body

274:Output shaft

276:Motor bracket

278:Motor housing

280:Mobile gear section

290: First moving gear part

292: First assembly gear

294:First binding protrusion

295:Extended parts

296: Second assembly gear

298:Second binding protrusion

300: Second moving gear unit

302: Second moving gear body

304: Combining groove part

306:Inner gear

310:Stator

320:Bearing Department

322: Wheel bearing department

324: Shaft bearing

Claims (20)

A flywheel adjustable wheel, including: A rotating gear part rotates by receiving power from a pedal part, and is provided with a gear along the outer periphery; a housing part to rotatably support the rotating gear part; A clutch bearing is provided between the rotating gear part and the housing part, and transmits power to the housing part when the rotating gear part rotates forward; a clutch hub, fixed on the outside of the rotating gear part and rotating together with the rotating gear part; A clutch gear is provided successively with the clutch hub and fixed to the housing part; A driving part is fixed to the housing part and supplies rotational power; and A moving gear part moves through the power of the driving part and moves in a flywheel mode engaged with the clutch hub and in a non-flywheel mode engaged with the clutch hub and the clutch gear simultaneously. The flywheel adjustable wheel according to claim 1, wherein the rotating gear part includes: A pulley component is located outside the housing part and receives the power of the pedal part through a belt; and A rotating body extends from the pulley component to the inside of the housing part and rotates together with the pulley component. The flywheel adjustable wheel according to claim 2, wherein the clutch hub includes: A disc-shaped hub body, the center of which is consistent with the rotating body, and is fixed to the outside of the rotating body; and A protruding first outer gear is arranged along the outer circumference of the hub body and extends in the up and down direction. The flywheel adjustable wheel according to claim 1, wherein the housing part includes: a cover housing that rotates together with the clutch gear and receives rotational power through the clutch bearing, and is configured to surround the clutch bearing and the moving gear portion; and A fixed housing supports the driving part and is disposed in an opening of the cover housing. The flywheel adjustable wheel according to claim 4, wherein the clutch gear includes: A gear main body is annularly arranged inside the cover housing and fixed to the cover housing; and A second outer gear protrudes toward the outside of the gear body and meshes with the moving gear portion to receive power. The flywheel adjustable wheel as described in claim 4 further includes: A stator is fixed to the fixed housing, and is arranged in an annular shape along the edge of the fixed housing, and generates magnetic force. The flywheel adjustable wheel according to claim 4, wherein the driving part includes: A driving body is fixed to the fixed housing and supplies rotational power; and An output shaft protrudes toward the outside of the driving body, rotates through the action of the driving body, and is connected with the moving gear part to move the moving gear part. The flywheel adjustable wheel according to claim 1, wherein the moving gear part includes: A first moving gear part is annularly disposed outside the clutch hub and moves in a linear direction by receiving power from the driving part; and A second moving gear part is located inside the first moving gear part and has a gear meshing with the clutch hub and the clutch gear. The flywheel adjustable wheel according to claim 8, wherein the first moving gear part includes: A first assembly gear is provided on one side of the clutch hub and moves through the action of the driving part; and a second assembly gear, disposed on the other side of the clutch hub and connected to the first assembly gear, Wherein, the inside of the first assembly gear is provided with a first coupling protrusion inserted into a coupling groove provided on the outside of the second moving gear part, and A second coupling protrusion inserted into the coupling groove is provided on the inner side of the second assembly gear. The flywheel adjustable wheel according to claim 8, wherein the second moving gear part includes: a second moving gear body, arranged in an annular shape; A coupling groove portion is formed in an annular shape along the outer circumference of the second moving gear body and is combined with a protrusion protruding inward of the moving gear portion; and An inner gear protrudes toward the inner side of the second moving gear body and meshes with a gear provided on the clutch gear and a gear provided on the clutch hub. A flywheel adjustable wheel, including: A rotating gear part rotates by receiving power from a pedal part, and is provided with a gear along the outer periphery; A shaft passes through the inside of the rotating gear part and is arranged in the horizontal direction, and is fixed to a frame part; A cover housing is provided with the rotating gear part and the shaft through the center and is rotatably provided; a fixed housing configured to block an opening of the cover housing and whose rotation is restricted; A clutch bearing is provided between the rotating gear part and the cover housing, and transmits power to the cover housing when the rotating gear part rotates forward; a clutch hub, fixed on the outside of the rotating gear part and rotating together with the rotating gear part; A clutch gear is provided successively with the clutch hub and fixed to the cover housing; A driving part is fixed to the fixed housing and supplies rotational power; and A moving gear part moves through the power of the driving part and moves in a flywheel mode engaged with the clutch hub and in a non-flywheel mode engaged with the clutch hub and the clutch gear simultaneously. The flywheel adjustable wheel according to claim 11, wherein the rotating gear part includes: A pulley component is located outside the cover housing and receives the power of the pedal part through a belt; and A rotating body extends from the pulley component to the inside of the cover housing and rotates together with the pulley component. The flywheel adjustable wheel according to claim 12, wherein the clutch hub includes: A disc-shaped hub body, the center of which is consistent with the rotating body, and is fixed to the outside of the rotating body; and A protruding first outer gear is arranged along the outer circumference of the hub body and extends in the up and down direction. The flywheel adjustable wheel according to claim 11, wherein the clutch gear includes: A gear main body is annularly arranged inside the cover housing and fixed to the cover housing; and A second outer gear protrudes toward the outside of the gear body and meshes with the moving gear portion to receive power. The flywheel adjustable wheel as described in claim 11 further includes: A stator is fixed to the fixed housing and is arranged annularly along the edge of the fixed housing, and generates magnetic force to adjust the rotation load of the cover housing. The flywheel adjustable wheel according to claim 11, wherein the driving part includes: A driving body is fixed to the fixed housing and supplies rotational power; and An output shaft protrudes toward the outside of the driving body, rotates through the action of the driving body, and is connected with the moving gear part to move the moving gear part. The flywheel adjustable wheel according to claim 11, wherein the moving gear part includes: A first moving gear part is annularly disposed outside the clutch hub and moves in a linear direction by receiving power from the driving part; and A second moving gear part is located inside the first moving gear part and has a gear meshing with the clutch hub and the clutch gear. The flywheel adjustable wheel according to claim 17, wherein the first moving gear part includes: A first assembly gear is provided on one side of the clutch hub and moves through the action of the driving part; and a second assembly gear, disposed on the other side of the clutch hub and connected to the first assembly gear, Wherein, the inside of the first assembly gear is provided with a first coupling protrusion inserted into a coupling groove provided on the outside of the second moving gear part, and A second coupling protrusion inserted into the coupling groove is provided on the inner side of the second assembly gear. The flywheel adjustable wheel according to claim 17, wherein the second moving gear part includes: a second moving gear body, arranged in an annular shape; A coupling groove portion is formed in an annular shape along the outer circumference of the second moving gear body and is combined with a protrusion protruding inward of the moving gear portion; and An inner gear protrudes toward the inner side of the second moving gear body and meshes with a gear provided on the clutch gear and a gear provided on the clutch hub. An exercise bicycle, including: A frame part supports a tube and a handle; A pedal part is provided on a rotating disk, and the rotating disk is provided on the side of the frame part; A rotating gear part rotates by receiving power from the pedal part, and is provided with a gear along the outer periphery; a housing part to rotatably support the rotating gear part; A clutch bearing is provided between the rotating gear part and the housing part, and transmits power to the housing part when the rotating gear part rotates forward; a clutch hub, fixed on the outside of the rotating gear part and rotating together with the rotating gear part; A clutch gear is provided successively with the clutch hub and fixed to the housing part; A driving part is fixed to the housing part and supplies rotational power; and A moving gear part moves through the power of the driving part and moves in a flywheel mode engaged with the clutch hub and in a non-flywheel mode engaged with the clutch hub and the clutch gear simultaneously.