KR100293323B1 - Apparatus for changing the direction of driving power of intermittent friction type for a bicycle hub - Google Patents

Abstract

PURPOSE: An apparatus for changing the driving direction of a bicycle by intermittent friction is provided to drive a bicycle by selectively using a lever, to optimize the traveling efficiency when traveling forward by backward driving, and to prevent the breakage of gear teeth by using intermittent friction. CONSTITUTION: An apparatus for changing the driving direction of a bicycle by intermittent friction comprises a driven sprocket housing(20) movably combined to a hub shaft(100), an idle gear(400) rotating by interlocking with a gear(21) formed on the front end of the driven sprocket housing, a first carrier(300) for rotatably supporting the idle gear by using a rotating shaft(40) as a supporting point, a ring gear(500) engaged with the idle gear, a third pole(630) installed on the outer face of the ring gear, a driving unit(A) consisting of a third ratchet member(530) for transmitting power to a hub shell(200), a backward driving change unit(B) for rotating the driving unit idly, backwardly and forwardly by the operation of a lever(30) slidably installed on the hub shaft, and a second ratchet member(520) for supporting the backward driving change unit.

Description

Apparatus for changing the direction of driving power of intermittent friction type for a bicycle hub}

The present invention relates to a forward and reverse drive conversion device for a bicycle hub by an intermittent friction method, and more specifically, a reverse drive speed conversion unit and a drive conversion unit are installed in the rear hub hub shell of the bicycle to rotate the bicycle forward and idle as in the prior art. In addition, the lever is installed so as to drive forward, and the reverse drive force of the input pedal shaft always relates to a power hub of the bicycle hub to output the power in the forward drive in one direction, that is, forward rotation.

In general, the bicycle can only move forward by one direction, that is, forward driving, which makes it easy to fatigue the legs of the driver when driving for a long time, and also has the problem of uneven development of the leg muscles.

Therefore, in order to improve this problem, various inventors have tried to develop a device capable of driving a conventional bicycle which can be driven only in one direction in both directions.

The bidirectional drive devices developed so far can be divided into sub-gear, bevel-gear and planetary gears.

Representative of the bidirectional drive device using the auxiliary gear is the invention of Mantzoursos et al. (EPO Publication No. 0,369,925), the invention using the bevel gear and clutch is Mr. Foster's invention (US Patent 5,435,583), representative of the planetary gear There is a domestic patent application No. 95-47910 by the present applicant.

However, all of these inventions must be attached to the outside of the pedal shaft, so when the device is mounted on the bicycle, it protrudes out of the bicycle frame, which can hinder the driving of the bicycle rider. There was a problem that it is difficult to attach to a bicycle that can be carried.

Therefore, due to these problems, a transmission apparatus for a bicycle capable of mounting the bidirectional traveling device on the rear wheel shaft has been developed.

In other words, the bicycle's transmission can reduce the fatigue of the foot when the rider rides the bicycle, and in order to efficiently use the energy applied to the pedal, the pedaling rhythm of stepping on the pedal can be evened, and the pedaling force applied to the pedal can be kept constant. As a device, the gear ratio of the drive sprocket and the driven sprocket is adjusted so that an appropriate response force can be applied to the running resistance of the bicycle.

Such transmissions include an external transmission and an internal transmission.

In other words, the external transmission refers to a device that changes gear ratios directly by changing a chain on several sprockets of different diameters installed on the pedal shaft and the hub shaft, and the internal transmission installs a planetary gear inside the rear wheel hub shell. Say the device to change the gear ratio.

Built-in transmission is more compact than the external transmission, it can block the inflow of dust or foreign matter, etc., because it is installed inside the hub shell is not easily damaged by external shocks.

Due to these advantages, the internal transmission is widely used in general bicycles. As an example of one of the inventions related to the internal transmission, Patent Application No. 97-25869 of the present applicant filed in Korea recently can be given.

The basic configuration of the present invention is a cylindrical driven sprocket housing rotatably mounted to the hub shaft of the rear wheel and at a predetermined interval in which the forward and reverse poles are elastically maintained in the circumferential direction, and a hub that can be combined with the forward pole of the driven sprocket housing. A drive converting unit configured of a latching ring of the cell and a latching ring coupled to a reverse pole of the driven sprocket housing, into which the forward and reverse driving force of the driven sprocket is input; A first carrier coupled to the ratchet ring and capable of rolling the planetary gears with respect to the hub axis, a first sun gear that is cloudable with the planetary gears of the first carrier, and the first sun gear and the planetary gears rolling; And a second sun gear equipped with a second carrier fixed to the hub shaft to be driven, and a forward pole rotatably driven with planetary gears of the second carrier and protruding elastically in a forward direction in one circumferential direction. A direction converting unit capable of converting the reverse driving force of the driving converting unit into the forward rotation; A third sun gear, which is engageable with the forward pole of the second sun gear of the directional conversion part and with the fixed latch fixed to the hub shell, the integral gear of the hub shaft, the third sun gear and the planetary gears. And a clutch which is slidable between the third carrier and the third carrier and the inner diameter of the second sun gear so as to be elastically slidable by an external lever. It consists of reverse drive speed converting part that can decelerate forward speed and idle speed.

That is, the above-described configuration comprises a drive converting unit which is equipped with a driven sprocket housing in which the forward and reverse poles are mounted in the hub shell, respectively. The drive converting unit is, for example, in accordance with the input of the forward and reverse rotations of the driven sprocket. When the rotation is input, the forward pole of the driven sprocket housing rotates the ratchet fixing ring fixed to the hub shell so that the regular driving force can be output to the hub shell.

In addition, the reverse drive speed conversion unit connected by the drive conversion unit and the carrier means is configured in parallel, when the reverse rotation is input, the reverse pole of the driven sprocket housing drives the carrier means, connected to these carrier means It is to be transmitted to the reverse drive speed converter.

In particular, the reverse drive speed converting unit may convert the reverse drive force of the drive converting unit to forward rotation by changing the position of the clutch operated by an external lever, and at the same time, input the same speed or low speed as the input speed. It can be converted and transmitted to the shell, and the input reverse driving force can be changed to idle.

However, in the above invention, since the pawls and ratchets of the shifting part and the reverse driving part are always engaged with each other, the bicycle cannot be turned back without the lever operated, and the teeth are broken or engaged by the overload during forward and reverse driving. There was a problem that noise and play caused by.

The present invention is to solve the above-described drawbacks, the reverse drive speed conversion unit and the drive conversion unit is installed in the rear wheel hub shell of the bicycle, the bicycle can be rotated forward and idle as in the conventional bicycle forward driving, and is also input By allowing the pedal shaft to output power in one direction at all times, it is possible to optimize the running efficiency when the rider drives the bicycle forward by reverse driving, while at the same time improving the balance of muscle development while reducing fatigue. It's about having it.

In order to achieve the above object, the present invention provides a bicycle rear wheel hub having a transmission using a planetary gear, driven sprocket housing coupled to the hub shaft; An idle gear that is engaged and rotated in engagement with a gear formed at the tip of the driven sprocket housing; A first carrier for rotatably supporting the idle gear as a support point of the pivot shaft; A ring gear meshed with the idle gears; A third pole provided on an outer circumferential surface of the ring gear; A drive unit including a third latch member for intermittently engaging the third pole to transmit power to the hub shell; A reverse drive converting unit installed at one end of the first carrier to allow the driving unit to idle and reverse rotate by driving the lever slidably installed on the hub shaft; The technical features are given to the second ratchet member for supporting the reverse drive converting portion B.

Accordingly, the present invention provides a reverse drive conversion drive for forward driving the bicycle while stepping on the pedal in a counterclockwise direction so that forward driving and forward driving by reverse driving are freely available according to the driver's choice. By optimizing the running efficiency while reducing fatigue, it is possible to train balanced muscle development.

That is, the power transmitted to the driving unit or the reverse drive conversion unit exits to the hub shell via various paths. In particular, the transmission of the reverse driving force to the drive may transmit the rear wheel of the bicycle to run at low speed, idling or high speed.

The power transmission path according to the present invention will be briefly explained by dividing into a lever operation and a lever release time.

1) When operating the lever

a) forward driving by forward rotation of pedal

The power generated by the pedal reaches the driven sprocket of the invention via the crank, the drive sprocket and the chain in turn.

The Middle East sprocket is transferred to a driven sprocket housing, idle gear and a first carrier which is fluidly coupled to the hub axle, and the rear wheel is rotated forward by rotating the hub shell through the first pole, ring gear and third pole engaged with the carrier. Can be driven.

b) idle when the pedal reverses

Power is cut off through the pedal, driven sprocket, coarse sprocket housing, idle gear and the first carrier to idle when the pedal is reversed.

2) Release lever

a) driving forward when the pedal is turned forward

The rear wheel can be driven by forward rotation of the hub shell through the first pole, ring gear and third pole which are transmitted to the pedal, driven sprocket, driven sprocket housing, idle gear and the first carrier and are engaged with the carrier.

b) forward to forward rotation of pedal

The pedals, driven sprockets, driven sprocket housings and idler and ring gears for diverting direction, the third pole and the hub shell can drive the bicycle forward.

1 is a forward and reverse drive conversion device of a bicycle hub according to the intermittent friction method of the present invention

A part cut away in the state actuated by the lever,

2 is an enlarged cross-sectional view taken along line a-a of FIG.

3 is a view showing a part of the first pole and the second pole of the present invention,

4 is a forward and reverse drive conversion device of the bicycle hub according to the intermittent friction method of the present invention

The part shown in a cut-off state in the state of lever release,

5 is an enlarged cross-sectional view taken along line b-b of FIG. 4 of the present invention;

6 is a forward and reverse drive conversion apparatus of a bicycle hub according to the present invention intermittent friction method

Longitudinal section showing another embodiment,

7 is an enlarged cross-sectional view taken along line c-c of FIG. 6;

8 is an enlarged cross-sectional view taken along the line d-d of FIG. 6;

9 is an enlarged cross-sectional view taken along line e-e of FIG.

<Explanation of symbols for main parts of the drawings>

10: driven sprocket 20: driven sprocket housing

30: lever 40: rotating shaft

100: hub shaft 101: nut

200: hub shell 21,302,501,502: gear

201: coupling member 300: first carrier

310; Carrier 400: Children's Gear

410: first children gear 420: second children gear

500: ring gear 510: first ratchet member

511,521,202, ratchet 520: second ratchet member

530: the third ratchet member 610: the first pole

620: second pole 630: third pole

640: direction change member 700: friction ring

810: pressing member 820: inclined member

830: push pin A: drive unit

B: reverse drive converter

Example 1

Embodiment 1 of the present invention will be described in detail with reference to the accompanying drawings.

As shown in FIG. 1, the hub shell 200 which is rotatably mounted to the hub shaft 100 by a bearing or the like is formed in a substantially 'H' shape as viewed from the side, which will be described later on its side. The driven sprocket housing 20, to which the reverse drive converter B and the drive unit A, can be mounted, and the driven sprocket 10 driven by the chain and the pedal shaft, not shown, is fixed to the side thereof. It is fixedly installed.

On the circumferential surface of the hub shell 200, a conventional multi-stage speed conversion component may be mounted to be connected to the reverse drive conversion unit B and the driving units A to be driven.

In addition, the circumferential circumferential surface of the hub shaft 100 is a rod-shaped with a screw and spline, the hub shaft 100 is across the center of the hub shell 200, as shown in Figure 1, the left and right It is attached by the fixing means, such as the nut 101 and the washer 102, and is able to maintain the airtight with the hub shell 200.

In addition, the lever 30 is provided on the hub shaft 100 so as to be slidable, and the reverse drive converting portion B which allows the driving of the driving unit A to be idled and reversed by the operation of the lever 30 is provided. Is installed.

At this time, the reverse drive conversion unit (B) is rotatably fixed by the second ratchet member (520).

In addition, a driven sprocket housing 20 in which a driven sprocket 10 is integrally installed at one side of the hub shaft 100 is rotatably installed, and a driving bearing 120 between the driven sprocket 10 and the hub shaft 100. ) Is installed.

Next, the gear 21 is formed on the outer periphery of the distal end of the driven sprocket housing 20, and the idle gear 400 meshed with the tooth gear 21 is rotated on the first carrier 300. At the same time, the idle gear 400 is engaged with the inner gear 501 of the ring gear 500.

Next, at one side of the ring gear 500, a third pole 630 is intermittently engaged with the ratchet 531 of the third latch member 530.

Next, the first ratchet member 510 is integrally formed on the other side of the ring gear 500, that is, on the outer circumference of the first carrier 300.

Next, a reverse drive conversion unit B is installed outside the first carrier 300 so as to allow the driving unit to idle and reverse rotation.

That is, as shown in FIG. 1, the reverse drive conversion unit B is provided with a second carrier 310 on the side opposite to the first carrier 300, and has a rotation shaft 40 on the second carrier 310. The first pole 610 and the second pole 620 is installed to be rotatable with the support point, and between the first pole 610 and the second pole 620, as shown in FIG. As described above, the first pole 610 is connected to the first ratchet 511 of the first ratchet member 510, and the second pole 620 is the second ratchet opposite to each other by the reversing member 640 having the elastic force. It is configured to mesh with the second ratchet 521 of the member 520, respectively.

Meanwhile, a friction ring 700 is provided between the second ratchet member 520 and the second carrier 310 to hold the first carrier 300 while being rotated at an angle.

In addition, the push pin 830 for disengaging the second pawl 620 from the second ratchet 521 of the second ratchet member 520 is one end of the lever 30 slidable to the hub shaft 100. It is installed to be operated up and down by the pressing member 810 and the inclined member 820 operated by the pressing main body 810 installed in the.

In addition, an elastic member 840 is installed between the inclined member 820 and the second ratchet member 520 so as to support the inclined member 820 with a constant elastic force toward the pressing member 810 at all times.

When explaining the action of the forward and reverse drive conversion device of the bicycle hub according to the intermittent friction method of the present invention configured as described above divided into the lever operation and the lever release time as follows.

A state in which the lever is operated to have the same function as a conventional bicycle will be described with reference to FIG. 1 as follows.

a) forward driving by forward rotation of pedal

By pressing the lever 30, the pressing member 810 receives the resistance of the elastic member 840 and proceeds in the direction of arrow X in FIG. 1, and at the same time, the inclined member 820 installed at the tip of the pressing member 810 is the same. As the direction progresses, the position pin pusher 830 rises on the inclined member 820 to raise the second pole 620, and the second pole 620 is a ratchet of the second ratchet member 520. Engagement is released from 521.

The power generated by the next pedal reaches the driven sprocket 10 via the crank, drive sprocket and chain not shown in turn.

The driven sprocket 10 transmits power to the driven sprocket housing 20 which is movably coupled to the hub shaft 100.

Next, as shown in Figure 1, the idle gear 400 is rotated through the gear 21 formed on the outer periphery of the driven sprocket housing 20, the first carrier by the rotation of the idle gear 400 300 rotates.

Next, the rotational force of the first carrier 300 is controlled by the first ratchet by the first pole 610 intermittently engaged with the ratchet 511 of the first ratchet member 510, as shown in FIG. 1 or 2. At the same time as the member 510 is rotated, the ring gear 500 integrally formed with the first ratchet member 510 is rotated, and the rotational force is the third pole 630 formed at one end of the outer circumference of the ring gear 500. ) Is forwarded by forward rotation of the hub shell 200 through the third ratchet member 530 temporarily engaged with the third pole 630, and driving the rear wheels forward.

At this time, when the driving force is transmitted as described above, the second pole 620 and the second ratchet member 620 maintain the engaged state.

b) idle when the pedal reverses

As shown in FIG. 1, power is transmitted to a pedal, a driven male prop 10, and a driven sprocket housing 20.

Next, the idle gear 400 rotates through the gear 21 formed on the outer circumference of the driven sprocket housing 20, and the power is cut off through the first carrier 300 by the rotation of the idle gear 400. When the pedal rotates in reverse, it will idle.

At this time, when the driving force is transmitted as described above, even when the bicycle is stopped because the first carrier 300 is in a no-load state, power is not transmitted to the hub shell 200.

2) Release lever

a) driving forward when the pedal is turned forward

As shown in Fig. 4, the generated ring power at the pedal reaches the driven sprocket 10 via a crank, a drive sprocket, and a chain not shown in sequence.

The driven sprocket 10 transmits power to the driven sprocket housing 20 which is movably coupled to the hub shaft 100.

Next, the idle gear 400 rotates through the gear 21 formed on the outer circumference of the driven sprocket housing 20, and the first carrier 300 rotates by the rotation of the idle gear 400.

Next, the first ratchet member 510 is rotated by the first pole 610 intermittently engaged with the first ratchet member 510, and the first ratchet member ( The ring gear 500 integrally formed with the 510 is rotated, and the rotational force is transmitted to the third pole 630 formed at one end of the outer circumference of the ring gear 500, and the third pole 630 is temporarily By rotating the hub shell 200 forward through the meshed third ratchet member 530 and driving the rear wheel forward, the bicycle travels forward.

b) driving forward when the pedal turns in reverse

As shown in FIG. 4 or 5, power is transmitted to the pedal, the driven sprocket 10, and the driven sprocket housing 20. As shown in FIG.

Next, the idle gear 400 rotates through the gear 21 formed at the outer circumference of the driven sprocket housing 20, and the rotation of the idle gear 400 is engaged with the idle gear 400. 500 and the first ratchet member 510 are rotated to change the rotation direction, and the reverse rotation is performed by the third pole 630 formed at one end of the outer circumference of the ring gear 500 of the third ratchet member 530. Simultaneously with the third ratchet 531, the power transmitted to the third ratchet member 530 rotates the hub shell 200 forward while being coupled to the coupling member 201 of the hub shell 200. By driving the rear wheels forward, the bicycle will drive forward.

At this time, the friction ring 700 is the second pole 620 is the second ratchet member 521 while the first carrier 300 moves from the point P of FIG. 5 to the point P ′ to hold the second carrier 310. It is engaged with the ratchet 511 of the first carrier 300 is fixed.

Example 2

Embodiment 2 of the present invention will be described in detail with reference to the accompanying drawings.

Figure 6 shows another embodiment of the forward, reverse drive conversion device of the bicycle hub according to the present invention intermittent friction method,

First, about the same shape and name which were described in Example 1, the same code | symbol is attached | subjected and the description is abbreviate | omitted.

Embodiment 2 includes a Middle East sprocket housing 20 fluidly coupled to the hub side 100; The first pole 610 and the second pole 620 are supported by the turning member 640 with the pivot shaft 40 as a supporting point on the first carrier 300 provided at the outer circumference of the driven sprocket housing 20. The first pole 610 is installed to operate relatively, the first ratchet 511 of the first ratchet member 510 and the second pole 620 is the second ratchet 521 of the second ratchet member 520. A first idle gear 410 installed intermittently in engagement with the first idler gear 410 to be in engagement with a gear 502 formed at the front end of the second ratchet member 520 to change direction; A second carrier 310 for rotatably supporting the first idler gear 410 with the pivot 40 as a support point; A second idle gear 420 meshed with a gear 302 formed at the tip of the second carrier 310 to increase speed; A third carrier 320 for rotatably supporting the second idler gear 420 with the pivot shaft 40 as a support point; It is installed to surround the outer circumferential surface of the second idler gear 420 and consists of a ring gear 500 having a third pole 630 installed at one end thereof.

Referring to the connection relationship between the forward and reverse drive conversion device of the bicycle hub by the intermittent friction method configured as described above, as shown in Figure 6, to the driven sprocket 10 around the hub shaft 100 The driven sprocket housing 20 is integrally formed, and the first ratchet member 510 is coupled to the coupling member 201 formed inside the hub cell 200 while surrounding the outer circumference of the driven sprocket housing 20. The first carrier 300 is installed at the tip of the driven sprocket housing 20.

Next, a second ratchet member 520 is formed at the tip of the first carrier 300, a second carrier 310 is formed at the tip of the second ratchet member 520, and a second ratchet member 520 is formed at the tip of the second carrier 310. The third carrier 320, the ring gear 500 is installed on the outer periphery of the third carrier 320, the first carrier 300 is a first operating point relative to each other by the support shaft 40 as a support point The first pole 610 and the second pole 620 are installed, and the direction switching member 640 is installed between the first pole 610 and the second pole 620 so that the first pole 610 is the first pole. The second pole 620 is installed on the ratchet 511 of the ratchet member 510 so as to be intermittently engaged with the second ratchet 521 of the second ratchet member 520.

In addition, as shown in FIG. 6 or FIG. 7 to hold a portion where the first pole and the second pole are positioned while the driven sprocket housing 20 is rotated by a predetermined angle, the friction ring 700 includes a second ratchet member ( 520 is provided between the inner circumferential surface of the first carrier 300.

Next, as shown in FIG. 6 or FIG. 8, the first rotationally installed pivot shaft 40 on the second carrier 310 as a support point on the gear 502 formed at the tip of the second ratchet member 520. As the idle gear 410 is engaged, the first idle gear 410 is installed to mesh with the inner gear 303 of the second carrier 310.

Next, as shown in FIG. 6 or 9, the second idler gear 420 between the gear 302 formed at the front end of the second carrier 310 and the ring gear 500 having the inner gear 501. Is rotatably installed on the ring gear and the third carrier 320 with the pivot 40 as the support point, and intermittently on the ratchet 202 formed inside the hub cell 200 at the tip of the ring gear 500. The third pole 630 is fitted to be installed.

Therefore, the operation of the forward and reverse drive conversion apparatus of the bicycle hub by the intermittent friction method of the second embodiment configured as described above is as follows.

a) driving forward when the pedal is turned forward

As shown in Fig. 6, the power generated by the pedal reaches the driven sprocket 10 via a crank, a drive sprocket, and a chain not shown in sequence.

The driven sprocket 10 transmits power to the driven sprocket housing 20 which is movably coupled to the hub shaft 100.

Next, as shown in FIG. 7, while the driven sprocket housing 20 is rotated at a predetermined angle by the frictional force of the friction ring 700, the first carrier 300 formed at the outer circumference of the driven sprocket housing 20 is rotated. The first pole 610 is engaged with the ratchet 511 of the first ratchet member 510 simultaneously with the noise of the first carrier 300, and the rotational force of the first ratchet member 510 is the hub cell 200. By turning forward), the bicycle moves forward.

At this time, the second pole 620 is in a state in which engagement is released from the ratchet 521 of the second ratchet member 520.

b) driving forward when the pedal turns in reverse

As shown in FIG. 6, power is transmitted to the pedal, driven sprocket 10, and driven sprocket housing 20.

Next, as the first sprocket housing 20 formed on the outer circumference of the driven sprocket housing 20 rotates the driven sprocket housing 20 at a predetermined angle by the frictional force of the friction ring 700, the first pole 610 may be formed. The disengagement is released from the ratchet 511 of the first ratchet member 510 and the second pole 620 is engaged with the ratchet 521 of the second ratchet member 520 by the redirection member 640. The second ratchet member 520 is rotated, and the rotational force rotates the first idler gear 410 meshed with the gear 502 formed at the tip of the second ratchet member 520, and the first idler gear ( The rotational force of the 410 reverses the rotation of the ring carrier mixed carrier 3, and simultaneously rotates the second idler gear 420 formed on the outer periphery of the second carrier 310 to thereby rotate the second idler gear. Rotating ring gear 500 meshed with 420, the rotational force of the ring gear 500 is formed on the outer periphery of the tip of the ring gear 500 As the third pole 630 is engaged with the ratchet 202 formed in the hub shell 200, the hub shell 200 is rotated forward to drive the rear wheels forward, thereby driving the low bicycle forward.

At this time, the speed is increased by the gear ratio of the second idle gear 420 meshed with the ring gear 500.

As described above, the present invention can provide the following effects by providing a reverse drive conversion unit for driving the drive unit in the idle and reverse rotation on the outer and inner shaft of the carrier so as to convert the forward and reverse drive force of the driven sprocket. have.

First, by selectively using the lever, the same effects as in a conventional bicycle can be obtained.

Second, the bicycle rider can optimize the running efficiency when the bicycle is running forward by reverse driving, and at the same time reduce the fatigue and train balanced muscle development.

Third, by using the intermittent friction method, it is possible to prevent the teeth from being broken due to the conventionally generated teeth, and at the same time improve the product properties due to low noise and low play.

Claims (6)

A bicycle rear wheel hub having a transmission using a planetary gear, comprising: a driven sprocket housing movably coupled to a hub shaft; An idle gear that is engaged and rotated in engagement with a gear formed at the tip of the driven sprocket housing; A first carrier for rotatably supporting the idle gear with the support shaft; A ring gear meshed with the idle gears; A third pole provided on an outer circumferential surface of the ring gear; A drive unit including a third latch member for intermittently engaging the third pole to transmit power to the hub shell; A reverse drive change unit installed at one end of the first carrier to allow the driving unit to idle and reverse rotate by driving the lever slidably installed on the hub shaft; A forward and reverse drive conversion device for a bicycle hub according to an intermittent friction method, characterized in that it is a second ratchet member for supporting the reverse drive conversion unit. According to claim 1, wherein the reverse drive conversion unit and the pressing member is installed on one end of the lever; An inclined member operated by the pressing member; An elastic member installed between the second ratchet member and the inclined member so that the inclined member has a constant elastic force at all times; A first pole and a second pole installed on the second carrier to correspond to each other by the inclined member; Bicycle according to the intermittent friction method, characterized in that the first pole and the second pole is composed of a push pin intermittently engaged with the ratchet of the first ratchet member and the second ratchet member formed integrally with the ring gear. Hub forward and reverse drive inverter. The method of claim 2, wherein the direction switching member is provided between the first and second poles, so that the first pole and the second pole opposite to each other, the first pole to the first ratchet of the first ratchet member, the second pole The forward and reverse drive conversion device of the bicycle hub by the intermittent friction method, characterized in that the second ratchet of the second ratchet member is engaged. The intermittent ring according to claim 1, wherein a friction ring is installed between the outer circumferential surface of the first carrier and the second carrier so as to hold a portion where the first pole and the second pole are positioned while the first carrier is rotated at an angle. Forward and reverse drive inverter of bicycle hub by friction method. A bicycle rear wheel hub having a transmission using a planetary gear, comprising: a driven sprocket housing movably coupled to the hub shaft; The first pole and the second pole are installed on the first carrier installed on the outer circumference of the driven sprocket housing so that the first pole and the second pole are operated relative to each other by the turning member, and the first pole is formed of the first ratchet member. A first idler gear on the first ratchet intermittently engaged with the second ratchet of the second ratchet member, and engaged with a gear formed at the tip of the second ratchet member to change direction; A second carrier for rotatably supporting the first idler gear as the support shaft; A second idle gear for meshing with a gear formed at the front end of the second carrier to increase speed; A third carrier for rotatably supporting the second idler gear with the pivot as a support point; The front and rear drive conversion device of the bicycle hub by the intermittent friction method characterized in that the ring gear is installed to surround the outer circumferential surface of the second idler gear and the third pole is installed at one end. 6. The intermittent friction according to claim 5, wherein a friction ring is installed between the second ratchet member and the first carrier to hold a portion where the first pole and the second pole are positioned while the driven sprocket housing is rotated at an angle. Forward and reverse drive inverters of bicycle hubs.