KR19990071896A - Power inverter of bicycle - Google Patents

Abstract

The present invention relates to a two-way forward traveling device of the bicycle is configured between the pedal shaft 20 and the drive sprocket 73 and the present invention is largely the shaft housing 30, the conversion ring 40, the carrier 50, the sun The gear 60 and the sprocket cover 70 may be divided. The shaft housing 30 supports the rotating shaft and a plurality of reversing stoppers 32 are installed on the inner surface of the right cap rim to control the carrier 50 when driving the pedal backward, and the conversion ring 40 ) Serves to open and close the reversing stopper in the shaft housing 30 when the pedal is driven backward, and the carrier 50 has ratchetes 51 and 52 formed at one end of the inner and outer surfaces thereof, and at the other end. A plurality of planetary gears 54 are rotatably attached to transmit the sprocket 70 by the same or changing the direction of power transmission from the pedal shaft 20, the sun gear 60 is coupled to the pedal shaft 20 Then, the driving force of the pedal shaft is transmitted to the carrier 50. And the sprocket cover 70 is formed on the inner surface of the cap rim to receive power from the carrier 50 serves to always rotate the front only the pedal regardless of the front, rear driving direction. When the pedal of the bicycle is driven forward in the state in which the "power conversion device of the bicycle" according to the present invention is mounted on the existing bicycle, the bicycle is driven forward, and the bicycle is driven forward, even when driven backward. It is an accessory to the bicycle that can idle at the option of the child.

Description

Power inverter of bicycle

The average bike has wheels in front of and behind the bike frame, with a pair of pedals positioned between the wheels to act as a power source. The propulsion power of the bike is obtained by stepping on the pedals and transferred to the driving sprockets, chains and homogeneous sprockets to propel the rear wheels. Such a bicycle is configured to idle by a one-way ratchet of the rear wheel hub when the rider drives the pedal forward and the bicycle runs forward.

Various inventions have been disclosed for the development of a bicycle accessory for driving a general bicycle which can be driven only in one direction in both directions. Among them, Mantzoursos et al. And Foster's invention are representative.

Mantzoutsos et al. (EPO publication No. 0,369,925) are designed to install two gears on a pedal shaft and to attach or detach an auxiliary gear between them. In the present invention, when the pedal is driven while the auxiliary gear is detached, the bicycle travels like a normal bicycle. However, when the pedal is driven backward by attaching the auxiliary gear, the rotation direction is changed by the auxiliary gear, and the bicycle is driven forward.

Forster's invention (US Pat. No. 5,435,583) consists of a gearbox mounted on a pedal shaft, a clutch on the shaft between two gears and both gears in the gearbox, and a bevel gear between the gears. . In the present invention, when the bicycle is driven while the clutch is coupled to the right gear side, the bicycle runs like a normal bicycle, but when the bicycle pedal is driven backward while the clutch is coupled to the left gear side, the rotation direction is changed by the bevel gear, and the bicycle is driven forward. .

The above two inventions have the meaning in that they are bidirectional driving devices that allow the bicycle to run forward even when the pedal is driven backward by installing the intermediate gear, but the power transfer is concentrated in a specific part when the direction is changed. The service life of the drive is short, it is inconvenient to operate the redirection device, and these devices are not exquisitely exposed to the outside and are not aesthetically pleasing.

The two-way driving traveling device to compensate for this disadvantage is Korean Patent Application No. 94-13391. This invention forms a constant closed space between one end of the pedal shaft and the drive sprocket, and installs two one-way ratchets below and above the space within the space, and a ratchet wheel in which a plurality of planetary gears are rotatably fixed. And a conversion lever configured to lock and unlock the ratchet in one of the upper directions of the ratchet. The mechanism by which the bicycle can be driven in both directions is as follows.

When the pedal is driven forward, the pedal, the ratchet wheel, and the driving sprocket are integrally rotated by the lower one-way ratchet to drive the bicycle forward. On the other hand, when driving the pedal backward, it can be divided into the case of hanging the upper ratchet and the case of releasing by the operation of the conversion lever. If the pedal is driven backwards while the upper ratchet is engaged, the planetary gear will rotate in place. As a result, the pedal will change direction of rotation and transmit it to the drive sprocket, so the bicycle will run forward. When the pedal is driven backward while the upper ratchet is released, the planetary gear rotates and rotates around the pedal shaft with the ratchet wheel. As a result, the pedal shaft power is not transmitted to the drive sprocket, and the pedal is idle.

The 94-13391 invention, which is operated in this way, allows the use of a plurality of planetary gears to disperse the concentration of the force in accordance with the change of direction to use for a long time, and to easily change the rotational direction of the pedal shaft by using a conversion lever. It is evaluated as a new bicycle drive that miniaturizes and refines parts so that the two-way drive can operate smoothly.

However, the invention of 94-13391 is difficult to manufacture parts for mass production, it is difficult to assemble work between each part, there is a need to improve some components, such as can not be installed directly on the existing bicycle. In addition, each component may be damaged by the reverse load generated when the bicycle is pulled back.

The present invention relates to a power converter of a bicycle, in particular, even if the bicycle pedal is driven forward or backward by adjusting the conversion lever mounted on the pedal shaft hub of the bicycle, the bicycle can always travel forward and at the same time pedal When driving the back is related to the power converter of the bicycle to allow idle idling according to the choice of the bicycle rider.

1 is a cross-sectional view showing a bicycle power converter according to the present invention,

2 is an exploded perspective view of the present invention,

3 is a right side view showing an embodiment of a sun gear used in the present invention,

4A is a cross-sectional view taken along the line A-A of FIG. 1, and is an operating state diagram when the conversion ring is terminated.

4B is a cross-sectional view taken along the line A-A of FIG. 1, and is an operating state diagram when the conversion ring is inserted;

5 is a cross-sectional view taken along the line B-B of FIG.

6 is a cross-sectional view showing a first embodiment of the present invention;

7 is a right side view of the shaft housing used in Example 1,

8 is a left side view of a carrier used in Example 1,

9 is a left side view of the sprocket cover used in Example 1,

10 is a right side view showing a conversion ring control means of Embodiment 2 of the present invention;

11 is a sectional view showing a state in which Example 3 of the present invention is installed on a bicycle.

<Explanation of Signs of Major Parts of Drawings>

10, 110: bicycle frame, 11, 111: pedal shaft hub, 15: connector,

20, 120: pedal shaft, 30, 130: shaft housing, 32: reversing stopper 1,

33,133: hole, 40, 140: conversion ring, 4: gear 2,

50, 150: carrier, 51: ratchet 1, 52: ratchet 2,

54, 154: planetary gears, 60, 160: sun gears, 61: gears 3,

62: reversing stopper 2, 70, 170: sprocket cover, 71: gear 4,

72: bracket, 73: drive sprocket, 80: conversion lever,

81: gear 1, 90: fixing nut, 132: reversing lock 3,

141: gear 5, 151: ratchet 3, 152: reversal stop 4,

161: gear 6, 171: gear 7, 172: ratchet 4,

Best Example

Referring to the present invention in more detail with reference to Figures 1 to 5 as follows.

As shown in FIG. 1 and FIG. 2, in the present invention, the shaft housing 30, the conversion ring 40, the carrier 50, the sun gear 60, and the sprocket cover 70 are sequentially rotated on the bicycle pedal shaft 20. Combining and fixing the outside of the sprocket cover 70 with a fixing nut 90 constitutes a whole device. The composition of each part and its role are explained in order as follows.

The shaft housing 30 in the present invention supports the pedal shaft 20 to be rotated, and the groove 31 is dug so that a plurality of reversing stoppers 1 32 can be installed on the inner surface of the right cap rim. In the side wall, a hole 33 is drilled in order to install the gear 1 81 for adjusting the conversion ring 40. The shaft housing 30 of this type accommodates the conversion ring 40, the carrier 50, and the sun gear 60, and at the same time the pedal is turned back by the reversing stopper 1 32 at the edge of the shaft housing 30. When driving it serves to hinder the rotation of the carrier 50 or to enable rotation. Here, a spring is mounted between the housing 30 and the reversing stopper 1 (32) so that the reversing stopper 1 (32) always maintains elasticity.

In the conversion ring 40 of the present invention, the gear 2 41 is formed on one side toward the center of the shaft, and a plurality of grooves 42 are dug in the curved portion. Gear 2 (41) meshes with gear 1 (81) to rotate conversion ring (40) and groove (42) serves to intercept reversal lock (32). When the reversing stopper 1 (32) is pulled out between the grooves 42, the carrier 50 cannot rotate, and in the state where the conversion ring 40 blocks the reversing stopper 1 (32), Rotation is possible.

Carrier 50 of the present invention is a hollow cylindrical shape, the ratchet 1 (51) on the outside of the left side, the ratchet 2 (52) is formed on the inside, the right side of the ring 53 is a plurality of holes ) Is integrally coupled to the left side, and a plurality of planetary gears 54 are rotatably fixed by the planetary gear shaft 55 in the ring. The ratchet 1 51 of the carrier 50 thus configured is engaged with the reversal clamp 1 32 of the shaft housing 30, and the ratchet 2 52 is the reversal clamp of the sun gear 60 which will be described later. Meshes with 2 (62). On the other hand, the planetary gear 54 of the carrier 50 has a gear 4 (71) on the inner surface of the sprocket cover 70, the lower portion of which is engaged with the gear 3 61 of the sun gear 60 and the upper portion thereof will be described next. Meshes with

In the present invention, the carrier 50 is most important in the present invention to serve to maintain or convert the power direction from the pedal shaft 20 to the sprocket cover 70. And the planetary gear of the carrier 50 (54) disperses the concentration of force due to the change of direction and the number is preferably eight.

In the present invention, the sun gear 60 has a stepped cylindrical shape, the left side of which is small in diameter, a plurality of grooves 63 are dug so that the reversing stopper 2 62 is installed on the outside thereof, and the inner side of the pedal shaft 20 is provided. It is made in the form of a hexagon or a spline so that it can be fixed integrally with a), and the right part having a large diameter is formed with a gear 3 (61) on the outside thereof. In the sun gear 60 configured as described above, the reversing stopper 2 62 is engaged with the ratchet 2 52 of the carrier 50 and the gear 3 61 is engaged with the planetary gear 54 of the carrier 50. In addition, four reversing stoppers 2 (62) are preferable.

Here, the method of applying elasticity to the reversing clamp 1 (32) and the reversing clamp 2 (62) is a method of installing a coil or a leaf spring under the reversing clamp, and as shown in FIG. There is a method using a line tension by installing a single circular wire spring 65 to dig a flute or slot at an angle and connect them.

And in the present invention, the reversing stopper 1 (32) and the conversion ring 40 is located outside the carrier 50 serves to intercept the carrier 50 only when the pedal shaft 20 is reverse rotation, reverse The stopper 2 62 is positioned inside the carrier 50 and serves to rotate the carrier in one direction in the forward rotation.

In the present invention, since the sun gear 60 is integrally coupled with the pedal shaft 20, the sun gear 60 serves to transmit the power of the pedal shaft to the carrier 50 while always rotating in the same direction as the rotation direction of the pedal shaft 20.

In the present invention, the sprocket cover 70 has a gear 4 (71) formed on the right side of the inner surface of the cover rim, and a plurality of brackets (72) are installed on the outer surface of the rim to drive the sprocket 73 of the multi-stage. ) Can be combined. The bearing 74 is fixed to the center of the sprocket cover 70 so that the sprocket cover 70 can be freely rotated by being separated from the pedal shaft 20. The gear 4 71 of the sprocket cover 70 is meshed with the planetary gear 54 of the carrier 50 to receive the power of the pedal shaft 20 via the carrier 50.

In the present invention, the sprocket cover 70 always rotates forward only regardless of the rotational direction of the pedal shaft 20.

In FIG. 1, reference numeral 10 denotes a bicycle frame, 11 a pedal shaft hub, 21 a shaft bearing, and 22 a washer.

When the shaft housing 30 and the sprocket cover 70 are coupled to the pedal shaft 20 of the bicycle, a sealed space is formed between the shaft housing 30 and the sprocket cover 70 and the conversion ring 40 therein. The carrier 50 and the sun gear 60 are assembled with each other and fasten the fixing nut 90 to the outside of the sprocket cover 70 to form an overall device.

The assembly sequence of the present invention is to rotate the pedal shaft 20 in the shaft housing 30 in a rotatable manner and the pedal shaft 20 and the shaft housing 30 in a state in which the concentric housing around the pedal shaft 20 In order to assemble the conversion ring 40, the carrier 50, the sun gear 60 and the sprocket cover 70 in the order of 30, and then fix the outside of the sprocket cover 70 with the fixing nut 90 to fix one product. Make.

In the present invention, the conversion lever 80 for adjusting the conversion ring 40 is installed on the side wall of the shaft housing 30 and engaged with the gear 1 81 to move the conversion ring 40 through the gear 1 81.

Referring to the operation and effects of the present invention configured as described above are as follows.

For convenience of description, according to the operating method of the present invention will be divided into "forward driving by forward drive", "forward driving by backward drive" and "idling by reverse drive" will be described.

First, "forward driving by forward drive" refers to the progress of the bicycle when the pedal shaft 20 is driven clockwise (as seen from the right side of the bicycle traveling direction and used in the following) as shown in FIGS. 4 and 5. It refers to a case in which the direction is moving forward and the power transmission process according to the present invention is as follows.

When the pedal shaft 20 is rolled clockwise, the sun gear 60 rotates clockwise together. At this time, since the reversing stopper 2 62 hangs the ratchet 2 52, the carrier 50 is rotated in the same direction as the pedal shaft 20. In this case, the planetary gear 54 does not rotate itself, but rotates the gear 4 71 of the sprocket cover 70 engaged with it clockwise, so that the pedal shaft 20 and the sprocket cover 70 in the same direction. By turning, the bicycle moves forward.

Next "forward driving by reverse drive" refers to a case in which the driving direction of the bicycle proceeds forward when the pedal shaft 20 is driven counterclockwise, and the power transmission process according to the present invention is as follows. In order to operate in this way, as shown in Figure 4a by adjusting the conversion ring 40, the reversing stopper 1 (32) and ratchet 1 (51) must be engaged with each other.

When the pedal shaft 20 is rolled counterclockwise in this state, the sun gear 60 rotates counterclockwise together. When the sun gear 60 rotates in reverse, the reversing stopper 2 62 slips without being caught by the ratchet 2 52, and thus, power cannot be transmitted to the carrier 50. Meanwhile, as shown in FIG. 5, the gear 3 61 of the sun gear 60 transmits power to the planetary gear 54 engaged therewith to rotate the planetary gear 54 in a clockwise direction. At this time, the movement of the planetary gear 54 is subjected to the force to rotate the carrier integrally therein counterclockwise, but as shown in FIG. 4A, the reversing stopper 1 32 moves the ratchet 1 51 of the carrier 50. Since the carrier 50 is held, the carrier 50 cannot be rotated counterclockwise. Therefore, as shown in FIG. 5, the planetary gear 54 rotates clockwise while being engaged with the planetary gear 54 in a clockwise direction. By this action, the driving force input to the pedal shaft 20 in the counter-clockwise direction changes the power transmission direction while passing through the apparatus and is output clockwise to the sprocket cover 70.

Lastly, "idle rotation by reverse drive" refers to a case in which power is not transmitted to the sprocket cover 70 when the pedal shaft 20 is driven counterclockwise. The power transmission process according to the present invention is as follows. . In order to operate in this way, as shown in FIG. 4B, first, the conversion ring 40 is adjusted so that the reversing stopper 1 of the celebration housing 30 and the ratchet 1 51 of the carrier 50 are not engaged with each other.

In this case, the power transmission process is the same as the "forward driving by reverse drive" state until the carrier 50 is rotated counterclockwise by the planetary gear 54, except that the reversal lock 1 Since 32 does not hold the ratchet 1 51, the planetary gear 54 rotates and the carrier 50 itself revolves around the pedal shaft 20 counterclockwise. Therefore, the power of the pedal shaft 20 is transmitted only to the carrier 50 and not to the sprocket cover 70 so that the bicycle cannot be driven.

The difference between the "idle by reverse drive" and the "idle by reverse drive" of the present invention is as follows. That is, the driving sprocket and the chain is reversely rotated together with the pedal shaft in the "idle drive by the reverse drive" of the general bicycle, but the drive sprocket and the chain does not move in the "idle drive by the reverse drive" of the present invention.

As described above, the present invention, which is one of the two-way forward traveling devices, constitutes and manufactures a new component unlike the existing device, and power is transmitted in a completely different method from the existing device. In addition, the present invention has optimized the shape of each component to prevent the load from being concentrated on a specific portion, and to simplify the assembly work by integrating the parts. In addition, as will be described below, in another embodiment of the present invention, the lever is attached to simplify the operation of the device, and the structure of the shaft housing is modified to be directly mounted to the existing bicycle.

Hereinafter, the invention carried out by reversing the position of the one-way ratchet acting at the time of the forward rotation and the ratchet intermittent the reverse rotation based on the invention disclosed above (Example 1), the embodiment in which the conversion lever is replaced by a line instead of a gear. (Example 2) Next, the Example (Example 3) which changed the shape of the shaft housing so that the present invention can be directly combined without changing an ordinary bicycle is demonstrated.

<Example 1>

This embodiment is illustrated in FIGS. 6 to 9. The basic feature of the present embodiment is that the one-way ratchet applied at the time of forward rotation and the position of the ratchet for intermittent reverse rotation are interchanged. That is, the ratchet applied at the time of forward rotation was installed inside the carrier outside the carrier, and the ratchet which intermittent reverse rotation was installed inside the carrier outside the carrier.

Due to this change, the shape of each component is made different from the present invention as follows, but the number of components is the same as the present invention, and its operation method is similar to the present invention. The shape of the changed part is as follows.

As shown in FIGS. 6 and 7, the shaft housing 130 of the present embodiment first has a plurality of grooves 131 in which a cylindrical protrusion is formed on the right side, and a plurality of reversing stoppers 3 132 may be installed on the outside thereof. Is formed, the edge portion of the shaft housing 30 of the present invention, on which the reversing stopper 1 32 is mounted, is removed, and the side wall is disc-shaped, and the hole 133 for installing the gear 1 81 is It is perforated near the center of the pedal shaft 120.

The conversion ring 140 in the present embodiment is different from the conversion ring 40 in the present invention in that the gear 5 141 is formed on the side of the pedal shaft 120 outward. In the present embodiment, the conversion ring 140 is located between the reversing stop 3 (132) and the ratchet 3 (151) of the carrier 150.

As shown in FIGS. 6 and 8, the carrier 150 of the present embodiment has a plurality of grooves 153 having a ratchet 3 151 therein so that the reversing stopper 4 152 may be installed on the outside of the left portion. Is formed and the right part thereof is the same as the carrier 50 of the present invention. The carrier 150 configured as described above has a reversal stop 4 152 engaged with the ratchet 4 172 of the sprocket cover 170 and the ratchet 3 151 has a reversal stop 3 132 of the celebration housing 130. To interlock.

In the present embodiment, the sun gear 160 has an inner side fixed to the pedal shaft 120, and a gear 6 161 is formed on the outer side so that the sun gear 160 meshes only with the planetary gear 154 of the carrier 150.

6 and 9, the sprocket cover 170 is formed with gear 7 171 on the right side of the inner surface of the rim, and ratchet 4 172 on the left side. The planetary gear 154 of the carrier 150 is engaged and the ratchet 4 172 is engaged with the reversal stop 4 152 of the carrier 150.

Other components are the same as the present invention, and reference numeral 110 denotes a bicycle frame, 111 a pedal shaft hub, 153 a carrier ring, 155 a planetary gear shaft, and 173 a bracket.

Actions and effects of the present embodiment configured as described above are as follows.

First, when the pedal shaft 120 rotates in the clockwise direction, the sun gear 160 also rotates in the same direction and the planetary gear 154 rotates counterclockwise, but the carrier 150 itself It rotates clockwise at a different rotation ratio than the pedal shaft 120 and the reversal stopper 4 152 of the carrier 150 hangs the ratchet 4 172 of the sprocket cover 170 and eventually sprocket cover 170 ) Will be rotated clockwise.

Next, "forward driving by the reverse drive" is operated when the conversion ring 140 is terminated so that the reversing stopper 3 132 of the shaft housing 130 hangs the ratchet 3 151 of the carrier 150. This means that the carrier is fixed. Therefore, the planetary gear 154 rotates in place and transfers the power direction of the sun gear 160 to the sprocket cover 170.

Finally, "idle rotation by reverse drive" is the sun ring 160 because the conversion ring 140 blocks the reversal stop 3 (132) so that the carrier 150 rotates in the same direction as the pedal shaft 120. Power cannot be transferred to the sprocket cover.

<Example 2>

Embodiment 2 of the present invention relates to the adjustment of the conversion ring 40.

In the present invention, the conversion ring 40 is configured to open and close the reversing stopper 1 32 by the gear 1 81 (see FIGS. 1 and 2) provided on the side wall of the shaft housing 30. In order to adjust the gear 1 81 in the shaft housing 30 from the outside, the shaft housing 30 must be drilled and a conversion lever 80 is installed outside the shaft housing 30. The operation method is that when the conversion lever 80 rotates left and right, the gear 1 81 also rotates together, and the conversion ring 40 meshed with the rotation lever rotates in the same direction as the conversion lever 80, thereby preventing the reversal lock 1 (32). Open and close the).

The conversion lever 80 is protruded out of the shaft housing 30, so that when the present invention is coupled to the existing bicycle, the protrusion interferes with the coupling.

Therefore, the present embodiment 2 is to improve this point to remove the protrusion so that the present invention can be easily coupled to the existing bicycle and to control the conversion ring 40 by the steel wire.

As shown in FIG. 10, the control means of the conversion ring 43 according to the second embodiment forms a ring 44 at one end of the conversion ring 43 in which a plurality of grooves 45 are recessed, and the outer side of the shaft housing 30. The conversion ring 43 is controlled by the steel wire 46 inserted through the hole. That is, when pulling the steel wire 46, the conversion ring 43 closes the reversing stopper 1 (32), and when the steel wire 46 is pushed, the conversion ring 43 opens the reversing stopper 1 (32).

<Example 3>

In the third embodiment, the shape of the shaft housing 30 is changed so that the present invention can be directly coupled without changing the ordinary bicycle.

11 shows a state in which the present invention is installed on an existing bicycle. Embodiment 3 relates to an improvement in the shape of the cylindrical outer side engaging with the shaft of the celebration housing 30 of the present invention.

The shaft housing 34 in this embodiment is formed so that its outer surface is stepped to the left, and the left outer surface is smaller in diameter than the right outer surface. And in order to maintain compatibility when combined with the pedal hub (11) of the existing bike made a connection pipe (15). The outer surface of the connection pipe 15 forms a right screw 35, the outer diameter of which is the same as the pedal hub 11, and the inner diameter of the connection tube 15 is the same as the outer diameter of the shaft housing 34. Meanwhile, a separate nut 36 was produced as follows. That is, the left side screw 37 was formed in the outer surface of the nut 36, and the left inner surface of the nut 36 was tapered.

In order to install the shaft housing 34 according to the present embodiment as described above on an existing bicycle, first, the connecting pipe 15 is coupled to the pedal 35 with the right screw 35 and the shaft housing 34 is connected to the connecting pipe ( After spline coupling in 15), tighten the nut 36 with the left screw coupling on the opposite side and final tighten with a washer 39.

When the device according to the present embodiment is fastened to the existing bicycle, the right screw 35 and the nut of the connection pipe 15 are pulled back even when the reverse load is applied to the device according to the present invention via the drive sprocket. Since the left screw 37 of the 36 is fastened in the opposite direction to each other, the shaft housing 34 is more tightly coupled to the pedal hub 11 by the taper 38 of the inner surface of the nut as the load is received in reverse. .

In addition, the coupling between the shaft housing 30 and the pedal hub 11 may be tightly coupled to the shaft housing 30 and the side of the pedal hub 11 by uneven processing.

The present invention is an improved invention of 94-13391, the object of which is to improve the shape of each component and to facilitate the production and assembly of parts to mass production, to improve the parts and to develop auxiliary means The present invention provides a bicycle power converter that enables the device to be installed directly on the bicycle and at the same time prevents damage to the components due to the reverse load.

The present invention is a component that is used in a conventional bicycle power transmission device, that is, the pedal shaft, the drive sprocket formed and rotated on the pedal shaft, the chain connecting the drive sprocket and the driven sprocket, and the driving force of the drive sprocket to be transmitted to the rear wheel The driven sprocket, and the rear wheel is basically provided in the characteristics of the bicycle, the basic feature of the present invention is in the "power conversion device of the bicycle" configured in a closed space between the pedal shaft and the drive sprocket and used in the present invention They are usually cylindrical or in the form of rings or gears.

The present invention constituted between the pedal shaft and the drive sprocket can be largely divided into an axial housing, a change ring, a carrier, a sun gear, and a sprocket cap. The role of these parts is as follows.

The shaft housing supports the rotating shaft and accommodates the conversion ring, the carrier and the sun gear, and a number of pawls are installed on the inner surface of the right cap rim to control the carrier when the pedal is driven backward. When the pedal is driven backwards, the conversion ring opens and closes the inversion lock in the shaft housing, and the carrier has a ratchet formed at one end of the inner and outer surfaces thereof, and a plurality of planetary gears are rotatably attached to the other end thereof. Then, the direction of power transmission from the pedal shaft is transmitted to the sprocket in the same or changed direction, and the sun gear is coupled to the pedal shaft to transmit the driving force of the pedal shaft to the carrier. And the sprocket cover is formed on the inner surface of the cap rim to receive power from the carrier serves to always rotate the front of the pedal regardless of the front, rear driving direction.

When the pedal of the bicycle is driven forward in a state in which the "power converter of the bicycle" according to the present invention is mounted on an existing bicycle, the bicycle is driven forward, and the bicycle is driven forward even when driven backward. As such, the present invention is one of the "bidirectional forward traveling device" and the biggest difference among the differences from the conventional "bidirectional forward traveling device" is that the components are manufactured differently and operated by different mechanisms than the existing devices. Is the point. In addition, the present invention is different from the other "bidirectional forward traveling device" is that by optimizing the shape of each component to prevent the concentration of load on a specific site, the assembly work is simplified by integrating the parts. In addition, a conversion lever is installed to simplify the operation of the device according to the present invention, and another feature of the present invention is that an auxiliary ring for mounting the device according to the present invention is attached to the existing bicycle without changing.

When the pedal of the bicycle is driven forward in a state in which the "power converter of the bicycle" according to the present invention is mounted on an existing bicycle, the bicycle is driven forward, and the bicycle is driven forward even when driven backward. In addition, if the pedal of the bicycle is driven backward while the "power converter of the bicycle" is mounted on the bicycle, the pedal may be in an idle state as necessary. As such, the present invention is one of the "bidirectional forward traveling device" and the biggest difference among the differences from the conventional "bidirectional forward traveling device" is that the components are manufactured differently and operated by different mechanisms than the existing devices. Is the point. In addition, the present invention is different from the other "bidirectional forward traveling device" is that by optimizing the shape of each component to prevent the concentration of load on a specific site, the assembly work is simplified by integrating the parts. In addition, a conversion lever is installed to simplify the operation of the device according to the present invention, and another feature of the present invention is that an auxiliary ring for mounting the device according to the present invention is attached to the existing bicycle without changing.

Claims (16)

In the bi-directional forward traveling device of the bicycle consisting of a sprocket formed with a carrier and an internal gear fixed to the solar gear and the planetary gear rotatably coupled to the pedal shaft, It supports the rotating pedal shaft and at least one groove is dug in the inner surface of the right cap rim, and the hole is perforated in the side wall. The reversing stopper 1 includes a shaft housing engaged with the ratchet 1 of the carrier; Gear 2 is formed on one side toward the center of the shaft, and at least one groove is dug in the curved portion, so that the gear 2 is engaged with the conversion ring adjusting means to control the reversing stopper 1, A conversion ring located between the ratchet 1; A ratchet 1 is formed on the outside of the left side of the cylinder, and a ratchet 2 is formed on the inside, and at least one planetary ring is integrally coupled to the left side of the ring, and at least one planetary gear is formed inside the ring. It is fixed rotatably by a planetary gear shaft, and the ratchet 2 is engaged with the reversal stopper 2 of the sun gear, the inner gear of which is the gear 3 of the sun gear and the outer part of the gear on the inner surface of the sprocket cover. A carrier engaged with the four; The left hollow portion having a stepped hollow cylindrical shape has at least one groove on the outside thereof, and the inside thereof is engaged with the pedal shaft, and the right portion having the large diameter has a gear 3 formed on the outside thereof. A sun gear having a reversal stopper 2 coupled thereto; Gear 4 is formed on the right inner surface of the cover rim is separated from the pedal shaft can be freely rotated, the sprocket cover for fixing the outside on the pedal shaft with a fixed nut; The power converter of the bicycle, characterized in that configured between the pedal shaft and the drive sprocket. 2. The power converter of a bicycle according to claim 1, wherein eight reversing stoppers are provided in a groove of said shaft housing. The power converter of claim 1, wherein the conversion ring adjusting means of the shaft housing is gear 1. 4. The power converter of claim 3, wherein the gear 1 is installed by adjusting a conversion lever outside the celebration housing. 4. The power converter of claim 3, wherein the conversion ring adjusting means of the shaft housing forms a ring at one end of the conversion ring and controls the conversion ring by a steel wire inserted through a hole from outside the shaft housing. . The power converter of claim 1, wherein the groove of the conversion ring is eight. The power converter of claim 1, wherein the planetary gear of the carrier is eight. The power converter of claim 1, wherein four of the reversing stoppers 2 are provided in the grooves of the sun gear. The power converter for a bicycle according to claim 2 or 8, wherein a spring device is provided between said groove and said reversing stopper. 10. The power converter of claim 9, wherein the spring device comprises one circular line spring connecting the longitudinal grooves of the reversing stopper. The power converter of claim 1, wherein the sun gear has a hexagonal shape at an inner side thereof. The power converter of claim 1, wherein the sun gear has a spline form inside. The power converter of claim 1, wherein a screw is formed on the left outer surface of the sprocket cover frame and at least one bracket is installed on the right outer surface to couple the driving sprockets. The power converter of claim 13, wherein a bearing is fixed to a shaft center of the sprocket cover. In the bi-directional forward traveling device of the bicycle consisting of a sprocket formed with a carrier and an internal gear fixed to the solar gear and the planetary gear rotatably coupled to the pedal shaft, A shaft supporting the rotating pedal shaft and having a cylindrical protrusion formed on the right side thereof, having at least one reversing stopper 3 installed on the outside thereof, and having a side wall formed in a disk shape, and having a hole for installing a conversion ring adjusting means. A housing; Gear 5 is formed on one side of the pedal shaft to the outside and at least one groove is dug in the curved portion, the gear 5 is coupled to the conversion ring adjusting means to control the reversing lock 3, the reversing lock A conversion ring located between 3 and the ratchet 3 of the carrier; At least one reverse stopper 4 is provided on the outside of the left portion, and a ratchet 3 is formed on the inside thereof, and a ring having at least one hole is integrally coupled to the left portion at the right side thereof, At least one planetary gear is rotatably fixed by the planetary gear shaft, the reversing stopper 4 is engaged with the ratchet 4 of the sprocket cover and the ratchet 3 is engaged with the reversing stopper 3 of the celebration housing, the planetary gear A carrier whose inner part is engaged with gear 6 of the sun gear and the outer part thereof with gear 7 of the inner surface of the sprocket cover; A sun gear having an inner side fixed to the pedal shaft and a gear 6 formed outside; Gears 7 are formed on the inner side of the inner edge of the rim, respectively, and ratchets 4 are formed on the outside thereof, and are separated from the pedal shaft so as to be free to rotate, and a sprocket cover fixing the outside on the pedal shaft with a fixing nut; The power converter of the bicycle, characterized in that configured between the pedal shaft and the drive sprocket. 16. The connecting tube according to claim 1 and 15, wherein the outer surface of the shaft housing is stepped to the left, the outer surface is right-threaded, and the outer diameter thereof is the same as the inner diameter of the pedal hub, and the inner diameter thereof is the same as that of the outer shaft housing. And forming a left screw on the outer surface and installing the shaft housing to be compatible with the existing bicycle pedal hub by using a nut tapered on the left inner surface thereof.