KR19990031521U - Forward and reverse drive inverter of bicycle hub by intermittent friction method - Google Patents

Abstract

The present invention relates to a forward and reverse drive conversion device of a magnet hub based on an intermittent friction method. More specifically, a reverse drive speed conversion unit and a drive conversion unit are installed in the rear hub hub shell of a bicycle to rotate the bicycle forward and backward as in the prior art. It is equipped with a lever that can move forward by idling, and it is a power converter that outputs power in one direction at all times as the reverse driving force of the pedal shaft is input. This hub power transmission device has a built-in transmission using planetary gears. A bicycle rear wheel hub, comprising: a driven sprocket housing (20) movably coupled to the hub shaft (100); An idle gear 400 which meshes with and rotates in coordination with a gear 21 formed at the tip of the driven sprocket housing 20; A ring gear 500 and a first ratchet member 510 meshed with the idle gear 400; A third pole 630 installed on the outer circumferential surfaces of the ring gear 500 and the first ratchet member 510 to transmit power by contact or non-contact with the third ratchet member 530 of the hub shell 200; A driving unit (A) including a first carrier (300) for rotatably supporting the idle gear (400) with a pivot (40) as a support point; Reverse drive conversion unit installed at one end of the first carrier 300 to allow the driving of the drive unit (A) to idle and reverse rotation by the operation of the lever 800 slidably installed on the hub shaft (100) (B); It consists of a second ratchet member 520 for supporting the reverse drive converter (B).

Description

Forward and reverse drive inverter of bicycle hub by intermittent friction method

The present invention relates to a forward and reverse drive conversion device of a bicycle hub by an intermittent friction method. 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 general bicycle which can be driven only in one direction in both directions.

The two-way driving devices developed so far can be divided into sub-gear method, bevel gear method, and planetary gear method.

Representative of the two-way 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), using planetary gears A representative invention is Korean Patent Application No. 95-47910 by the 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 external transmissions and internal transmissions.

In other words, the external transmission refers to a device that directly changes gear ratios by changing chains 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.

The internal transmission can be further miniaturized compared to the external transmission, can block the inflow of dust or foreign matter, and is installed inside the hub shell so that it 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, there is a patent application No. 97-25869 of the present applicant filed in Korea recently.

The basic configuration of the present invention is a cylindrical driven sprocket housing rotatably mounted on the hub shaft of the rear wheel and whose elasticity in the circumferential direction is maintained in the circumferential direction at regular intervals, and can be combined with the forward pole of the driven sprocket housing. A drive converting unit configured of a latching ring of the hub shell and a latching ring that is engageable with a reverse pole of the driven sprocket housing, to which the forward and reverse driving force of the driven sprocket is input; The ratchet ring is coupled to the first carrier and the planetary gears and the planetary gears and the planetary gears of the first carrier, the first sun gear and the cloud-driven first gear, and the first sun gear and planetary gears are clouded And a second sun gear which is operably fixed to the hub shaft, and a second pole gear mounted with planetary gears of the second carrier and a forward pole which is cloud-driven and elastically protrudes in a circumferential direction on one side. 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 that can be coupled with a fixed latch fixed to the hub shell, an integral gear of the hub shaft, the third sun gear and planetary gears; And a clutch which is slidably movable between the third carrier and the inner diameter of the second carrier and the third carrier which can be slidably mounted by an external lever. It consists of reverse drive speed conversion part that can reduce forward and idle rotation.

In other words, the above-described configuration includes 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 is connected in parallel by the drive means of the drive conversion unit is configured in parallel, when the reverse rotation is applied to the reverse, the reverse pole of the driven sprocket housing drives the carrier means, and the carrier means It is to be transmitted to the reverse drive speed conversion part which is connected and driven.

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 converted to idle.

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

The present invention is to solve the above-mentioned shortcomings, and 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, 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 is a bicycle rear wheel hub with a transmission using a planetary gear, driven 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; A ring gear meshed with the idle gears; A third pole provided on an outer circumferential surface of the ring gear; A driving part comprising 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 second ratchet member for supporting the reverse drive converting portion B is provided with its technical constructional features.

Therefore, 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 can be freely performed 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 of the present invention is briefly explained by dividing into lever operation and lever release.

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 present invention via the crank, the drive sprocket and the chain in turn.

The driven sprocket is transferred to the driven sprocket housing, idle gear and the first carrier, which is fluidly coupled to the hub shaft, 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, driven sprocket housing, idle gear and the first carrier, and idling is performed when the pedal is rotated in reverse.

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 engaged with the carrier.

b) driving forward when the pedal is reversed

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 part of the bicycle hub according to the intermittent friction method of the present invention, the reverse drive driving device is shown in a partially cut state in the state operated 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,

Figure 4 is a part of the front and reverse drive conversion device of the bicycle hub by the intermittent friction method of the present invention is shown partially cut in the state when the lever release,

Figure 5 is an enlarged cross-sectional view b-b line of the present invention Figure 4,

Figure 6 is a longitudinal cross-sectional view showing another embodiment of the forward and reverse drive conversion device of the bicycle hub according to the intermittent friction method of the present invention,

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. 6.

* Explanation of symbols for main parts of the drawings

10: driven sprocket 20: driven sprocket housing

30: leisure 40: rotation axis

100: hub shaft 101: nut

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

201: coupling member 300: first carrier

310: second carrier 400: children gear

410: first children gear 420: second children gear

500: ring gear 510: first ratchet member

511,521,531,202: Ratchet 520: Second ratchet member

530: the third ratchet member 610: the first pole

620: second pole 630: third pole

640: direction transfer member 700: friction ring

810: pressing member 820: inclined member

830: pressing member A: driving part

B: reverse drive converter

Example 1

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

According to the present invention, as shown in FIG. 1, the hub shell 200 that is rotatably mounted to the hub shaft 100 by a bearing or the like has an inverted drive conversion which is formed in an H shape and is described later on the side thereof. The driven sprocket housing 20 is fixed to the side (B) and the driving unit (A), and is fixed to the side of its driven sprocket 10, which is driven by a pedal shaft and a chain (not shown). .

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 a spline, the hub shaft 100 is across the center of the hub shell 200, as shown in Figure 1, the left and right nuts It is attached by the fixing means, such as the 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 having a driven sprocket 10 integrally formed 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, a gear 21 is formed at the outer periphery of the distal end of the driven sprocket housing 20, and the idle gear 400 meshed with the gear 21 is pivoted to 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, the research dynamic 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 under the pivot as a 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 opposite to the second ratchet member by the reversing member 640 having the elastic force. It is configured to mesh with the second ratchet 521 of the 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, a push pin 830 for releasing engagement of the second pole 620 from the second ratchet 521 of the second ratchet member 520 is installed at the lower portion of the second pole 620. The pin 830 is operable up and down by the pressing member 810 installed at one end of the lever 30 slidable to the hub shaft 100 and the inclined member 820 operated by the pressing member 810. Is installed.

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

ㅇ The state of operating the lever 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 it progresses in the direction, the push pin 830 located on the inclined member 820 is raised 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 illustrated in FIG. 1, the idle gear 400 rotates through the gear 21 formed at the outer circumference of the driven sprocket housing 20, and the first carrier () is rotated by the rotation of the idle gear 400. 300 turns.

Next, the rotational force of the first carrier 300 is 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. ), And the hub shell 200 is forwardly rotated through the third ratchet member 530 temporarily engaged with the third pole 630 to drive the rear wheel, thereby driving the bicycle 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 the pedal, driven sprocket 10, and driven sprocket housing 20.

Next, the idle gear 400 rotates through the gear 21 formed at 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 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, 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 rotating 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, the bicycle travels forward.

b) driving forward when the pedal is reversed

As shown in FIG. 4 or FIG. 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, 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 coupled to 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 and reverse drive conversion device of the bicycle hub according to the 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 driven sprocket housing 20 fluidly coupled to the hub shaft 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 intermittently engaged with the second ratchet member 520 and intermittently engaged with the second ratchet 521 of the second ratchet member 520 to change a direction; A second carrier 310 for rotatably supporting the first idler gear 410 with the pivot shaft 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 one end of the third pole 630.

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 driven to the driven sprocket 10 around the hub shaft 100 The sprocket housing 20 is integrally formed, and the first ratchet member 510 is coupled to the coupling member 201 formed inside the hub shell 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 provided on the outer periphery of the third carrier 320, the first carrier 300 is operated to be relatively relative to each other with the pivot 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.

Also, as shown in FIG. 6 or FIG. 7, the friction ring 700 has a second ratchet member 520 to hold a portion where the first pole and the second pole are positioned while the driven sprocket housing 20 is rotated at an angle. It is installed between the inner peripheral surface of the first carrier and the first carrier (300).

Next, as shown in FIG. 6 or FIG. 8, the first idler gear rotatably installed on the first carrier 310 at the gear 502 formed at the front end of the second ratchet member 520 to support the pivot shaft 40. At the same time as the 410 is engaged, the first idle gear 410 is installed to be engaged with the inner gear 303 of the second carrier 310.

Next, as illustrated in FIG. 6 or 9, the second idler gear 420 is disposed between the gear 302 formed at the front end of the second carrier 301 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 a support point, and intermittently on the ratchet 202 formed inside the hub shell 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 (not shown), a drive sprocket, and a chain 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 illustrated in FIG. 7, the first carrier 300 formed at the outer circumference of the driven sprocket housing 20 is formed while the driven sprocket housing 20 is rotated by an angle by the friction force of the friction ring 700. The first pole 610 is engaged with the ratchet 511 of the first ratchet member 510 at the same time as the noise of the first carrier 300, and the rotational force of the first ratchet member 510 is the hub shell 200. By turning the wheel forward and driving the rear wheel, the bicycle will move 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 is reversed

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 first engagement is released from the ratchet 511 of the 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 idle gear 410 meshed with the gear 502 formed at the tip of the second ratchet member 520, and the first idle gear ( The rotational force of the 410 reverses the rotation of the ring carrier combined three carriers 320, and finally rotates the second idle gear 420 formed on the outer circumference of the second carrier 310 to thereby rotate the second idle gear ( 420 rotates the ring gear 500 engaged with the ring gear 500, and the rotational force of the ring gear 500 is a third pole 630 formed at the outer periphery of the front end of the ring gear 500. By being engaged with the ratchet (202) formed within the beusyel 200, sikimeuroseo rotated forward to the hub cell 200 jeonggudong the rear wheel, the bicycle is the forward travel.

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 provides the following effects by installing a reverse drive conversion unit for idling and forward rotation of the driving unit on the outside and the inside of the carrier so as to convert the forward and reverse driving 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 by 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 as a support point; A ring gear meshed with the idle gears; A third pole provided on an outer circumferential surface of the ring gear; A driving part comprising 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; 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; First and second poles 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 for intermittently engaging the ratchet of the first ratchet member and the second ratchet member formed integrally with the ring gear. Hub forward and reverse drive inverter. According to claim 2, Between the first and the second pole is provided with a redirection member, 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 provided 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 relatively operated by the turning member, and the first pole is formed of the first ratchet member. A first idler gear on the first ratchet to be 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 with the rotational axis as a supporting point; 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 rotational axis as a supporting point; The front and rear drive conversion device of the bicycle hub according to the intermittent friction method, characterized in that the ring gear is installed to surround the outer circumferential surface of the second children 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.