WO2011004988A2 - 무체인 자전거용 동력전달장치 - Google Patents

무체인 자전거용 동력전달장치 Download PDF

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Publication number
WO2011004988A2
WO2011004988A2 PCT/KR2010/004348 KR2010004348W WO2011004988A2 WO 2011004988 A2 WO2011004988 A2 WO 2011004988A2 KR 2010004348 W KR2010004348 W KR 2010004348W WO 2011004988 A2 WO2011004988 A2 WO 2011004988A2
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WO
WIPO (PCT)
Prior art keywords
gear
shaft
bevel gear
power transmission
gears
Prior art date
Application number
PCT/KR2010/004348
Other languages
English (en)
French (fr)
Korean (ko)
Other versions
WO2011004988A3 (ko
Inventor
윤근수
Original Assignee
Yun Keun Soo
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Yun Keun Soo filed Critical Yun Keun Soo
Priority to CN201080030918.0A priority Critical patent/CN102470911B/zh
Priority to JP2012519466A priority patent/JP5716252B2/ja
Publication of WO2011004988A2 publication Critical patent/WO2011004988A2/ko
Publication of WO2011004988A3 publication Critical patent/WO2011004988A3/ko

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62M—RIDER PROPULSION OF WHEELED VEHICLES OR SLEDGES; POWERED PROPULSION OF SLEDGES OR SINGLE-TRACK CYCLES; TRANSMISSIONS SPECIALLY ADAPTED FOR SUCH VEHICLES
    • B62M11/00—Transmissions characterised by the use of interengaging toothed wheels or frictionally-engaging wheels
    • B62M11/04—Transmissions characterised by the use of interengaging toothed wheels or frictionally-engaging wheels of changeable ratio
    • B62M11/14—Transmissions characterised by the use of interengaging toothed wheels or frictionally-engaging wheels of changeable ratio with planetary gears
    • B62M11/145—Transmissions characterised by the use of interengaging toothed wheels or frictionally-engaging wheels of changeable ratio with planetary gears built in, or adjacent to, the bottom bracket
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62M—RIDER PROPULSION OF WHEELED VEHICLES OR SLEDGES; POWERED PROPULSION OF SLEDGES OR SINGLE-TRACK CYCLES; TRANSMISSIONS SPECIALLY ADAPTED FOR SUCH VEHICLES
    • B62M11/00—Transmissions characterised by the use of interengaging toothed wheels or frictionally-engaging wheels
    • B62M11/04—Transmissions characterised by the use of interengaging toothed wheels or frictionally-engaging wheels of changeable ratio
    • B62M11/10—Transmissions characterised by the use of interengaging toothed wheels or frictionally-engaging wheels of changeable ratio with bevel gear wheels
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62K—CYCLES; CYCLE FRAMES; CYCLE STEERING DEVICES; RIDER-OPERATED TERMINAL CONTROLS SPECIALLY ADAPTED FOR CYCLES; CYCLE AXLE SUSPENSIONS; CYCLE SIDE-CARS, FORECARS, OR THE LIKE
    • B62K19/00—Cycle frames
    • B62K19/30—Frame parts shaped to receive other cycle parts or accessories
    • B62K19/34—Bottom brackets
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62M—RIDER PROPULSION OF WHEELED VEHICLES OR SLEDGES; POWERED PROPULSION OF SLEDGES OR SINGLE-TRACK CYCLES; TRANSMISSIONS SPECIALLY ADAPTED FOR SUCH VEHICLES
    • B62M11/00—Transmissions characterised by the use of interengaging toothed wheels or frictionally-engaging wheels
    • B62M11/04—Transmissions characterised by the use of interengaging toothed wheels or frictionally-engaging wheels of changeable ratio
    • B62M11/14—Transmissions characterised by the use of interengaging toothed wheels or frictionally-engaging wheels of changeable ratio with planetary gears
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62M—RIDER PROPULSION OF WHEELED VEHICLES OR SLEDGES; POWERED PROPULSION OF SLEDGES OR SINGLE-TRACK CYCLES; TRANSMISSIONS SPECIALLY ADAPTED FOR SUCH VEHICLES
    • B62M17/00—Transmissions characterised by use of rotary shaft, e.g. cardan shaft
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62M—RIDER PROPULSION OF WHEELED VEHICLES OR SLEDGES; POWERED PROPULSION OF SLEDGES OR SINGLE-TRACK CYCLES; TRANSMISSIONS SPECIALLY ADAPTED FOR SUCH VEHICLES
    • B62M23/00—Transmissions characterised by use of other elements; Other transmissions
    • B62M23/02—Transmissions characterised by use of other elements; Other transmissions characterised by the use of two or more dissimilar sources of power, e.g. transmissions for hybrid motorcycles

Definitions

  • the present invention relates to a non-chain bicycle, and more particularly, by using a planetary gear device having a multi-gear train, it is possible to implement a variety of speed ratio, not only easy shifting, but also reliable transmission of power, and also detachable rear wheels. It relates to an easy chainless power transmission device for bicycles.
  • Bicycles are used for various purposes such as transportation, leisure, sports, etc. as a means of transportation driven by manpower. Recently, bicycles have been relighted as an eco-friendly means of transportation that can actively cope with problems such as environmental pollution and high oil prices. In addition, the bicycle is an easy means of access for modern people who are absolutely lacking in exercise.
  • a bicycle generally has a structure in which power transmission is performed by connecting a pedal side sprocket and a rear wheel sprocket by a chain.
  • Such a chain-type bicycle is configured with a multi-stage pedal and rear wheel sprocket for shifting, and can realize various speed ratios by moving the chain on the sprocket.
  • the conventional chain bicycle has a problem that the oil applied to the chain is attached to the clothes or the body is not hygienic.
  • the chain is liable to break away from the sprocket and, in severe cases, to break. This causes a problem that often occurs safety accidents.
  • the chain-type bicycle has a problem in that the power transmission efficiency is lowered and noise is generated because the friction loss due to the engagement of the chain and the sprocket is relatively large.
  • the shift of the bicycle is continuously performed while driving, there is a problem that the shift of the bicycle cannot be performed when the bicycle is stopped.
  • a chainless bicycle has been developed that enables efficient power transmission without using a chain.
  • a typical example is a chainless bicycle using bevel gears.
  • the power transmission shaft takes the place of the chain. That is, the rear wheel is driven by orthogonally converting the rotational force of the pedal shaft using a bevel gear to the power transmission shaft, and converting the rotational force of the power transmission shaft orthogonally using a bevel gear.
  • Such a conventional chainless bicycle has an advantage in that the power transmission structure is relatively simple as compared with the existing chain bicycle, and the power transmission efficiency can be improved by reducing the friction of the bevel gear and the power transmission shaft.
  • the conventional chainless bicycle is not easy to implement a variety of speed ratio, like the existing chain-type bicycle, there is a problem that it is difficult to replace or repair the rear wheel is also not easy to attach or detach the rear wheel. This is pointed out as the biggest problem in the popularization of chainless bicycles.
  • the present invention is to solve the above problems, the object of the present invention is to implement a variety of speed ratio with a relatively simple structure, easy transmission and reliable power transmission, further removable body of the rear wheel It is to provide a power transmission device for a bicycle.
  • a power transmission device for a chainless bicycle is installed on the pedal shaft 100, the first transmission portion to increase the rotation speed of the pedal shaft 100 to output 200;
  • a first bevel gear 300 installed on the pedal shaft 100 and rotating at a speed output by the first transmission part 200;
  • a power transmission shaft 400 having one end of a second bevel gear 420 engaged with the first bevel gear 300;
  • a fourth bevel gear 500 meshed with a third bevel gear 440 provided at the other end of the power transmission shaft 400;
  • a rear wheel shaft 700 that rotates at a speed output by the second transmission unit 600.
  • the first and second transmission units 200 and 600 may include a pedal shaft 100 and a fourth bevel gear, respectively. At least three pairs are installed so that the carriers 210 and 610 fixedly connected to the 500 and at least three supports 212 and 612 are protruded on a virtual circumference of one surface of the carriers 210 and 610 so as to be independently freely rotated.
  • Planetary gear groups 220 and 620 made up of at least three other planetary gears 220a, 220b, 220c, 620a, 620b, and 620c, and internal planets 220a, 220b, 220c, 620a, 620b and 620c, respectively.
  • Ring gear groups 230 and 630 formed of ring gears 230a, 230b, 230c, 630a, 630b and 630c which are engaged with each other and are freely rotatable, and respective planetary gears 220a, 220b, 220c, 620a, 620b and 620c.
  • Solar gear groups 240 and 640 each of which is externally engaged and are integrally formed with different diameters of sun gears 240a, 240b, 240c, 640a, 640b, and 640c.
  • the output shafts 250 and 650 fixedly connected to the sun gear groups 240 and 640 and the shift lock means 270 and 670 to selectively fix any one of the ring gears 230a, 230b, 230c, 630a, 630b and 630c. .
  • the first transmission portion 200 and the first bevel gear 300 is built in the first housing 10, the pedal shaft 100 is supported,
  • the fourth bevel gear 500 and the second transmission portion 600 are installed in the second housing 20 on which the rear wheel shaft shaft 800 is supported, and
  • the power transmission shaft 400 is formed of the first housing 10 and the first housing 10. It is installed in a pipe-shaped horizontal frame 32 connecting the two housings 20, and the first and second housings 10 and 20 are provided with an openable cover 12 and 810.
  • the first transmission part 200 is connected to the pedal shaft to which the support shaft 212 and the pedal shaft 100 are inserted and fixed to support each planetary gear group 220.
  • a pipe 214 is formed on one surface of the carrier 210
  • a pipe-shaped output shaft 250 is formed on one side of the sun gear group 240 to support the pedal shaft connecting pipe 214, and the support 212. It is fastened to the gear group (220, 230, 240) to prevent the separation of each other so as to be well engaged with each other, the output shaft support plate 260 for supporting the output shaft 250 is further provided, the first bevel gear 300 is the output shaft 250 Is fixedly connected).
  • the second transmission unit 600 is a support 612 for supporting each planetary gear group 620 is formed on one surface of the carrier 610, the fourth A fourth bevel gear fixing member 614, to which the bevel gear 500 is fixedly connected, is formed on the other surface of the carrier 610, and is engaged with the support 612 to prevent separation of the gear groups 620, 630, and 640, thereby engaging each other.
  • the output shaft support plate 660 is further provided to support the other side of the output shaft 650, and the pipe-shaped output shaft 650 is inserted into the fourth bevel gear fixing member 614 to be supported. Extended to 640.
  • each of the planetary gear groups 220a, 220b, 220c, 620a, 620b, and 620c of the first and second transmission parts 200 and 600 may be arranged in an order of increasing radius from the inside of the carriers 210 and 610.
  • the sun gears 240a, 240b, 240c, 640a, 640b, and 640c and the planetary gears 220a, 220b, 220c, 620a, 620b, and 620c preferably have a gear ratio of 1: 0.2 to 3.
  • the ring gear groups 230 and 630 have the same diameter of the outer circumferential surface of each ring gear 230a, 230b, 230c, 630a, 630b, 630c, and the outer circumferential surface of each ring gear 230a, 230b, 230c, 630a, 630b, 630c.
  • There are a plurality of locking projections (232,632) are formed at equal intervals.
  • the shift lock means (270, 670) is moved with elastic support along the guide grooves (14, 24) formed in the first and second housing (10, 20) And stoppers 272 and 672 selectively locked to any one of the engaging protrusions 232a, 232b, 232c, 632a, 632b, 632c formed in each of the ring gears 230a, 230b, 230c, 630a, 630b, 630c; Bodies 274 and 674 formed in the first and second housings 10 and 20 so as to surround the moving paths of the stoppers 272 and 672 and having lids 275 and 675 that can be opened and closed; And wires 276 and 676 for adjusting the positions of the stoppers 272 and 672.
  • the covers 275 and 675 are further provided with guides 275a and 675a inserted into the stoppers 272 and 672 to guide the stoppers 272 and 672 to be slid
  • the power transmission device for an autonomous bicycle includes a first and second transmission parts using a planetary gear device having a multi-gear train to provide various speed ratios as in a conventional chain bicycle.
  • a planetary gear device having a multi-gear train to provide various speed ratios as in a conventional chain bicycle.
  • the relatively simple structure has the advantage of excellent durability as well as reliable power transmission.
  • the power transmission device for a chainless bicycle of the present invention can be utilized as an electric bicycle or a motor-drive bicycle by being provided with a battery and an electric motor or an internal combustion engine for rotating the pedal shaft.
  • FIG. 1 is a perspective view showing a chainless bicycle having a power transmission device according to an embodiment of the present invention.
  • Figure 2 is a perspective view showing a frame of the powertrain for a chainless bicycle.
  • Figure 3 is an exploded perspective view showing the pedal side of the powertrain for a chainless bicycle.
  • FIG. 4 is a cross-sectional view showing the assembled state of FIG.
  • Figure 5 is an exploded perspective view showing the rear wheel side of the power transmission device for a chainless bicycle.
  • FIG. 6 is a cross-sectional view showing the assembled state of FIG.
  • Figure 7 is an exploded perspective view showing a shift lock means of the present invention.
  • FIG. 1 is a perspective view showing a chainless bicycle having a power transmission device according to an embodiment of the present invention.
  • the power transmission device 2 according to an embodiment of the present invention drives the rear wheel 3 by converting the rotational speed of the pedal shaft 100.
  • the pedal 102 is connected to the pedal shaft 100 by the arm 101, as shown in Figure 1, by pressing the pedal 102 to rotate the pedal shaft 100 of the power transmission device (2). do.
  • a battery not shown
  • an electric motor not shown
  • prime mover not shown
  • the prime mover bicycle refers to a two-wheeled vehicle (e.g., a motorcycle, a scooter, etc.) having a displacement of 125 cc or less among two-wheeled vehicles according to Article 3 of the Automobile Management Act.
  • a two-wheeled vehicle e.g., a motorcycle, a scooter, etc.
  • FIG. 2 is a perspective view showing a frame of a power transmission device for a chainless bicycle.
  • Power transmission device according to an embodiment of the present invention is installed on a frame as shown in FIG.
  • the frame is composed entirely of horizontal frames 32 and 34 and inclined frames 40 and 50.
  • the horizontal frame (32, 34) has a pipe shape, it is preferable that a pair is provided so as to be located on the left and right sides of the bicycle (1).
  • a cylindrical first housing 10 is formed at the connecting portion of the first horizontal frame 32 and the first tilting frame 40, and at the connecting portion of the first horizontal frame 32 and the second tilting frame 50.
  • the cylindrical second housing 20 is formed.
  • a pedal shaft 100, a first transmission part 200, a first bevel gear 300, and a second bevel gear 420 are installed in the first housing 10, and a third bevel is installed in the second housing 20.
  • the gear 440, the fourth bevel gear 500, and the second transmission part 600 are installed.
  • the power transmission shaft 400 is installed inside the first horizontal frame 32.
  • the first housing 10 and the second housing 20 are provided with a cover 12, 810, respectively.
  • FIG. 3 is an exploded perspective view showing the pedal side of the powertrain for a chainless bicycle
  • Figure 4 is a cross-sectional view showing the assembled state of Figure 3
  • Figure 5 is an exploded perspective view showing the rear wheel side of the powertrain for a chainless bicycle.
  • 6 is a cross-sectional view showing the assembled state of FIG. 3 to 6
  • the power transmission device according to an embodiment of the present invention is roughly the pedal shaft 100, the first transmission portion 200, the first bevel gear 300, the second and the second A power transmission shaft 400 having three bevel gears 420 and 440, a fourth bevel gear 500, a second transmission 600, and a rear wheel shaft 700.
  • the pedal shaft 100 is rotatably installed in the first housing 10.
  • the first transmission unit 200 is installed in the first housing 10, and serves to increase and output the rotation speed of the pedal shaft 100 by using a planetary gear device having a multiple gear train.
  • the first shifting unit 200 includes a carrier 210, a planetary gear group 220, a ring gear group 230, a sun gear group 240, an output shaft 250, and a shift lock means 270. It consists of
  • the carrier 210 has a body 211 which forms a circular plate body as a whole.
  • a pedal shaft connecting pipe 214 is formed at the center of the carrier 210 to which the pedal shaft 100 is fitted.
  • the carrier 210 rotates together with the pedal shaft 100.
  • a support 212 for installing the planetary gear group 220 on a virtual circumference centering on the pedal shaft connecting pipe 214 is formed on one surface of the carrier 210. At this time, at least three support members 212 are formed at equal intervals. Meanwhile, a one-way clutch bearing (not shown) may be provided between the pedal shaft connector 214 and the pedal shaft 100.
  • One-way clutch bearing (not shown) rotates the carrier 210 only when the pedal shaft 100 is rotated forward, and when the pedal shaft 100 is rotated in reverse, the one-way clutch bearing is idle without rotating the carrier 210. . Therefore, power is transmitted to the rear wheel 3 only at the forward rotation of the pedal shaft 100.
  • the planetary gear group 220 is rotatably installed on the support 212 of the carrier 210.
  • the planetary gear group 220 is provided with at least three pairs of planetary gears 220a, 220b, and 220c to be rotatable independently of each other.
  • each planetary gear (220a, 220b, 220c) is composed of a different diameter, and when mounted on each support 212 is fitted in order from the larger diameter.
  • the planetary gear group 220 has three planetary gears 220a, 220b, and 220c as an example, but the number of planetary gears includes four or five shift gears of the first transmission unit 200. It is also possible to configure the four or five stages.
  • the ring gear group 230 is composed of three ring gears 230a, 230b, and 230c. At this time, each ring gear (230a, 230b, 230c) is engaged to be in contact with each of the planetary gear (220a, 220b, 220c) of each planetary gear group 220 is rotatable independently. That is, the first ring gear 230a is meshed with the first planetary gear 220a, the second ring gear 230b is meshed with the second planetary gear 220b, and the third ring gear 230c is third It is meshed with the planetary gear 220c.
  • each ring gear 230a, 230b, 230c is provided with engaging projections 232a, 232b, 232c on the outer circumferential surface at equal intervals.
  • each ring gear 230a, 230b, 230c is preferably formed with the same diameter of the outer peripheral surface so that the tip portion 273 of the stopper 272 to be described later smoothly mesh.
  • the sun gear group 240 is composed of three sun gears 240a, 240b and 240c so as to be externally engaged with the three pairs of planetary gear groups 220, and each of the sun gears 240a, 240b and 240c is different from each other. Have a diameter. At this time, each sun gear (240a, 240b, 240c) is formed integrally to rotate.
  • each of the sun gears (240a, 240b, 240c) and the planetary gears (220a, 220b, 220c) described above is configured so that the gear ratio is 1: 0.2 to 3. This will be described in detail later.
  • the output shaft 250 has a pipe shape and is fixedly connected to one side of the third sun gear 240c of the sun gear group 240. At this time, the pedal shaft connecting pipe 214 of the carrier 210 is fitted to the output shaft 250, it is installed so as not to contact each other with the bearing (B).
  • the output shaft support plate 260 is a circular plate formed with the output shaft insertion hole 262 in the center, is fastened to the support 212 of the carrier 210, prevents the separation of each gear group (220, 230, 240) is made good mutually Ring-shaped support protrusions 264 protruding to correspond to the gear groups 220, 230, and 240 are provided on one surface thereof to support the output shaft 250.
  • a bearing B is installed between the output shaft 250 and the output shaft insertion hole 262.
  • the shift lock means 270 provided in the first shift portion 200 is the same in configuration and operation as the shift lock means 670 provided in the second shift portion 600 will be described at a time.
  • the first bevel gear 300 is fixedly connected to the end of the output shaft 250, and rotates at a speed output by the first transmission portion 200.
  • the first housing 10 is provided with a cover 12 so that the first transmission portion 200 and the first bevel gear 300 is not exposed to the outside.
  • the power transmission shaft 400 includes a second bevel gear 420 and a third bevel gear 440 at both ends, and the second bevel gear 420 and the third bevel gear 440 are respectively disposed in the first housing 10. ) And the first horizontal frame 32 to be positioned in the second housing 20. At this time, it is preferable to install a bearing (not shown) between the power transmission shaft 400 and the first horizontal frame 32 to minimize energy loss due to frictional force. Then, the second bevel gear 420 of the power transmission shaft 400 is meshed with the first bevel gear 300, the rotational force of the first bevel gear 300 is orthogonal transformation.
  • the fourth bevel gear 500 has a key coupled to the carrier 610 of the second transmission portion 600, and is engaged with the third bevel gear 440 of the power transmission shaft 400 to rotate the rotational force of the power transmission shaft 400. Is orthogonally transformed to provide to the second transmission unit 600.
  • the second transmission part 600 is installed in the second housing 20 and serves to increase and output the rotation speed of the fourth bevel gear 500 by using a planetary gear device having a multi-gear train.
  • the carrier 610, the planetary gear group 620, the ring gear group 630, the sun gear group 640, the output shaft 650, and the shift lock means 670 of the second shift part 600 are generally formed of the first shift part ( 200 is the same as the configuration.
  • the features will be described mainly.
  • the carrier 610 has a support 612 for supporting each planetary gear group 620 on one surface of the body 611, and the fourth bevel gear fixing member 614 on which the fourth bevel gear 500 is fixedly connected. ) Is formed.
  • the output shaft 650 has a pipe shape, is formed long to one side of the sun gear group 640 so as to be fitted into the fourth bevel gear fixing member 614 and is extended to be short to the other side.
  • the output shaft support plate 660 is a circular plate having an output shaft insertion hole 662 at the center thereof, and is coupled to the support 612 of the carrier 610, and prevents the gear group 620, 630 and 640 from being separated from each other, thereby making it well engaged with each other.
  • a ring-shaped support protrusion 664 protruding to correspond to each gear group 620, 630, 640 is provided on one surface thereof, and serves to support the other side of the output shaft 650.
  • the rear wheel shaft 700 is fitted to the hub shaft (not shown) of the rear wheel 3 is formed integrally with the rear wheel (3). Accordingly, when the output shaft 650 rotates with the key coupled to the rear wheel shaft 700, the rear wheel 3 is driven at the speed output by the second transmission unit 600.
  • the one-way clutch bearing (not shown) is preferably installed between the rear wheel shaft 700 and the hub shaft (not shown). This is to prevent the impact on the second transmission part 600 by allowing the rear wheel 3 to idle when the forward rotation of the rear wheel 3 is faster than the rotation speed of the output shaft 650 of the second transmission part 600. to be.
  • the rear wheel shaft shaft 800 has a cover 810 integrally formed at one end thereof to open and close the other side of the second housing 20, and is fitted to the output shaft 650.
  • the rear wheel shaft shaft 800 supports the output shaft 650, rear wheel shaft 700 and the rear wheel (3), and the end of the rear wheel shaft shaft core 800 is screwed into the fastening hole 60 shown in FIG.
  • the rear wheels 3 do not depart from the frame.
  • the devices of the gear groups 620, 630, and 640 including the output shaft 650 are integrated by the output shaft support plate 660 that is engaged with the support 612 of the carrier 610.
  • the rear wheel 3 can be easily attached and detached from the frame.
  • the shift lock means 270 and 670 are installed in the first housing 10 and the second housing 20, respectively, and serve to adjust the output speeds of the first transmission part 200 and the second transmission part 600. . Since the configuration and operation of the first shift lock means 270 and the second shift lock means 670 are the same, only the first shift lock means 270 will be described below. As illustrated in FIG. 7, the first shift locking means 270 includes a stopper 272, a body 274, and a wire 276.
  • the stopper 272 has a tip portion 273 at a lower end thereof, and the tip portion 273 is installed to move along the guide groove 14 formed along the width direction of the first housing 10. At this time, the tip portion 273 has a cylindrical shape as a whole, and the lower end portion has a conical shape.
  • the stopper 272 is selectively caught by any one of the protrusions 232a, 232b, and 232c in which the tip portion 273 is formed in the first to third ring gears 230a, 230b, and 230c of the first shifting portion 200. It serves to fix the ring gear (230a, 230b, 230c) does not rotate.
  • the body 274 has a space part to surround the trajectory of the stopper 272 moving along the guide groove 14, and is formed on the outer surface of the first housing 10. And, one side of the body 274 is equipped with an openable cover 275. In particular, at least one guide 275a is formed in the lid 275 so that the stopper 272 is fitted to slide in the longitudinal direction. At this time, a spring 278 for elastically supporting the stopper 272 is fitted into the guide 275a. When the spring 278 is released as shown in FIG. 4, the stopper 272 is not engaged with any of the ring gears 230a, 230b, and 230c of the first shifting portion 200, that is, the stepless state. The first transmission portion 200 is idle. This is more useful for electric or prime mover bicycles connected to an electric motor or prime mover.
  • One end of the wire 276 is fixed to the stopper 272, and the other end thereof is connected to a shift lever (not shown) installed on the handle of the bicycle 1 through the cover 275.
  • the wire 276 moves along the guide groove 14 while the stopper 272 receives the elastic support of the spring 278 according to the operation of the shift lever (not shown).
  • the first shifting unit 200 and the second shifting unit 600 perform the following shifting operations by using a planetary gear device having a multi-gear train.
  • each of the planetary gears 220a, 220b, 220c, 620a, 620b, and 620c is rotated at the rotational speed of the pedal shaft 100 or the fourth bevel gear 500, respectively. It rotates about the rear wheel shaft axial center (800).
  • any one of the ring gears 230a, 230b, 230c, 630a, 630b, 630c which is internally engaged with each of the planetary gears 220a, 220b, 220c, 620a, 620b, and 620c is fixed by the stoppers 272 and 672.
  • the planetary gears and the sun gears corresponding thereto rotate. At this time, the remaining ring gear is idle.
  • the output shafts 250 and 650 fixed to the sun gear groups 240 and 640 rotate, thereby shifting.
  • the first transmission unit 200 and the second transmission unit 600 is the sun gear (240a, 240b, 240c, 640a, 640b, 640c) and the gear ratio of the planetary gear geared to each of the pedal shaft 100 of the Output by increasing the rotation speed.
  • the gear ratio of the first sun gears 240a and 640a and the first planetary gears 220a and 620a is 1: 1.5
  • the output shaft 250 rotates at four times the rotation speed of the pedal shaft 100.
  • the gear ratio of the second sun gears 240b and 640b and the second planetary gears 220b and 620b is 1: 1
  • the output shaft 250 is rotated at three times the rotation speed of the pedal shaft 100.
  • the output shaft 250 rotates at twice the rotation speed of the pedal shaft 100. Accordingly, the first shifting unit 200 and the second shifting unit 600 may be shifted three speeds, respectively. At this time, since the first transmission unit 200 and the second transmission unit 600 are connected by the power transmission shaft 400, the power transmission device 2 for a chainless bicycle can be shifted a total of nine steps. In addition, as the number of gears of the planetary gear groups 220 and 620, the ring gear groups 230 and 630, and the sun gear groups 240 and 640 of the first shifting unit 200 and the second shifting unit 600 is increased, more than 9 speeds may be realized. have.
  • the power transmission device 2 for a chainless bicycle may include various first and second transmission parts 200 and 600 using planetary gears, thereby realizing various transmission ratios as in a conventional chain bicycle.
  • the relatively simple structure has the advantage of excellent durability and reliable power transmission.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Structure Of Transmissions (AREA)
  • Retarders (AREA)
  • Transmission Devices (AREA)
  • Gear Transmission (AREA)
PCT/KR2010/004348 2009-07-08 2010-07-05 무체인 자전거용 동력전달장치 WO2011004988A2 (ko)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN201080030918.0A CN102470911B (zh) 2009-07-08 2010-07-05 无链条自行车用动力传递装置
JP2012519466A JP5716252B2 (ja) 2009-07-08 2010-07-05 無チェーン自転車用動力伝達装置

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR10-2009-0061998 2009-07-08
KR1020090061998A KR101135884B1 (ko) 2009-07-08 2009-07-08 무체인 자전거용 동력전달장치

Publications (2)

Publication Number Publication Date
WO2011004988A2 true WO2011004988A2 (ko) 2011-01-13
WO2011004988A3 WO2011004988A3 (ko) 2011-04-07

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103708368A (zh) * 2013-12-17 2014-04-09 中联重科股份有限公司 用于起升机构的变速比装置、起升机构和起重机
US10000255B2 (en) 2015-03-31 2018-06-19 Shimano Inc. Bicycle drive unit and bicycle equipped with the drive unit
CN109278932A (zh) * 2017-07-19 2019-01-29 罗伯特·博世有限公司 自行车的脚踏轴承驱动装置
WO2019086064A1 (de) * 2017-11-02 2019-05-09 Wilfried Donner Antriebsstrang mit zwei separaten, mittels zwischengetriebe gekoppelten schaltbaren getrieben
CN113028021A (zh) * 2021-02-26 2021-06-25 苏州市职业大学 一种无链式多级变速机构
CN114148444A (zh) * 2021-10-29 2022-03-08 上海第二工业大学 一种自行车三档变速无链传动轴
WO2022248135A1 (en) * 2021-05-28 2022-12-01 Classified Cycling Bv Transmission system for a vehicle, preferably a bicycle

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101498923B1 (ko) * 2013-05-02 2015-03-12 (주)일지테크 다단기어 변속장치
KR20170036189A (ko) * 2015-09-23 2017-04-03 주식회사 아덴 자전거용 무체인 구동계
US20190359288A1 (en) * 2016-12-29 2019-11-28 Tae Hwan Ha Multi-stage transmission bicycle
CN109591943A (zh) * 2017-09-28 2019-04-09 罗伯特·博世有限公司 用于车辆的驱动组件
CN110282067A (zh) * 2019-08-12 2019-09-27 苏州万佳电器有限公司 一种中置驱动机构及具有该中置驱动机构的助力自行车
CN111071383B (zh) * 2020-01-09 2022-02-22 浙江大学 自行车轴传动多级变速装置
TWI763313B (zh) * 2021-02-18 2022-05-01 明揚創意科技有限公司 適用於自行車的軸傳動裝置

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5622081A (en) * 1995-12-29 1997-04-22 Clements; Thomas M. Multiple speed shaft drive for a bicycle
KR200380269Y1 (ko) * 2004-05-24 2005-03-29 테 유 페릉 전동자전차의 동력장치

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02164685A (ja) * 1988-12-20 1990-06-25 Oriental Kanzai Kk 自転車用自動変速装置
JP3156790B2 (ja) * 1990-11-13 2001-04-16 ヤマハ発動機株式会社 自転車用変速装置
JPH06227477A (ja) * 1993-02-04 1994-08-16 Bridgestone Cycle Co 自転車用変速機の変速切換装置
JPH06263080A (ja) * 1993-03-12 1994-09-20 Bridgestone Cycle Co 自転車用変速装置
JPH07205874A (ja) * 1994-01-26 1995-08-08 Bridgestone Cycle Co 自転車用変速装置
JPH10194186A (ja) * 1997-01-13 1998-07-28 Yamaha Motor Co Ltd 電動自転車
JP2000095175A (ja) * 1998-09-22 2000-04-04 Yoshinori Noguchi 遊星歯車をペダル部ギアーに使用した自転車
JP2000316914A (ja) * 1999-05-10 2000-11-21 Yasuyuki Yamamoto 車椅子変速装置
CN2425849Y (zh) * 2000-05-09 2001-04-04 孟晓峰 齿轮传动变速自行车
US6558288B2 (en) * 2001-05-18 2003-05-06 Shimano, Inc. Internal transmission device with automatic shift mechanism for a bicycle
US6685205B1 (en) 2002-10-09 2004-02-03 Blaze L. Weaver Multi-speed inline bicycle transmission
TWM257327U (en) * 2004-05-24 2005-02-21 De-You Peng Improved power-driven structure for electric bicycle
KR20060028101A (ko) * 2004-09-24 2006-03-29 전인숙 자전거 변속 장치
CN101274659A (zh) * 2007-03-26 2008-10-01 郭生文 一种中轴无级自动变速器

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5622081A (en) * 1995-12-29 1997-04-22 Clements; Thomas M. Multiple speed shaft drive for a bicycle
KR200380269Y1 (ko) * 2004-05-24 2005-03-29 테 유 페릉 전동자전차의 동력장치

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103708368A (zh) * 2013-12-17 2014-04-09 中联重科股份有限公司 用于起升机构的变速比装置、起升机构和起重机
US10000255B2 (en) 2015-03-31 2018-06-19 Shimano Inc. Bicycle drive unit and bicycle equipped with the drive unit
CN109278932A (zh) * 2017-07-19 2019-01-29 罗伯特·博世有限公司 自行车的脚踏轴承驱动装置
CN109278932B (zh) * 2017-07-19 2022-04-22 罗伯特·博世有限公司 自行车的脚踏轴承驱动装置
WO2019086064A1 (de) * 2017-11-02 2019-05-09 Wilfried Donner Antriebsstrang mit zwei separaten, mittels zwischengetriebe gekoppelten schaltbaren getrieben
CN113028021A (zh) * 2021-02-26 2021-06-25 苏州市职业大学 一种无链式多级变速机构
CN113028021B (zh) * 2021-02-26 2024-05-17 苏州市职业大学 一种无链式多级变速机构
WO2022248135A1 (en) * 2021-05-28 2022-12-01 Classified Cycling Bv Transmission system for a vehicle, preferably a bicycle
CN114148444A (zh) * 2021-10-29 2022-03-08 上海第二工业大学 一种自行车三档变速无链传动轴
CN114148444B (zh) * 2021-10-29 2023-03-24 上海第二工业大学 一种自行车三档变速无链传动轴

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KR101135884B1 (ko) 2012-04-17
CN102470911B (zh) 2014-04-02
JP2012532789A (ja) 2012-12-20
CN102470911A (zh) 2012-05-23
TWI403431B (zh) 2013-08-01
KR20110004539A (ko) 2011-01-14
WO2011004988A3 (ko) 2011-04-07
TW201116447A (en) 2011-05-16

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