CN106697171A - Chainless planetary gear type bicycle and transmission mechanism thereof - Google Patents
Chainless planetary gear type bicycle and transmission mechanism thereof Download PDFInfo
- Publication number
- CN106697171A CN106697171A CN201710003949.0A CN201710003949A CN106697171A CN 106697171 A CN106697171 A CN 106697171A CN 201710003949 A CN201710003949 A CN 201710003949A CN 106697171 A CN106697171 A CN 106697171A
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- CN
- China
- Prior art keywords
- gear
- bicycle
- planetary gear
- transmission mechanism
- chain
- Prior art date
- Legal status (The legal status 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 status listed.)
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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
- B62M11/02—Transmissions characterised by the use of interengaging toothed wheels or frictionally-engaging wheels of unchangeable ratio
-
- 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
- B62M15/00—Transmissions characterised by use of crank shafts and coupling rods
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Transmission Devices (AREA)
- Retarders (AREA)
Abstract
The invention discloses a transmission mechanism of a chainless planetary gear type bicycle. The transmission mechanism comprises a frame and wheels fixed on the frame, a planetary gear system is arranged on the frame and comprises a sun gear driven by external force and meshing with a planetary gear, the planetary gear meshes with internal teeth of a gear ring fixed on the frame, a planet carrier is arranged on the planetary gear and is connected with a transmission crank through a hinge, the tail end of the transmission crank is fixedly connected with a transmission rod through a hinge and is connected with a translational motion mechanism through a transmission connection rod, the translational motion mechanism is connected with a drive connection rod which is connected with a drive crank through a hinge, and the drive crank is used for driving the rear wheel of the bicycle. The bicycle adopting the transmission mechanism is labor saving and high in speed. The transmission mechanism has the advantages that an annular rack substitutes for chain-wheel transmission to avoid chain falling; the transmission mechanism is easy to refit, high in universality and transmission efficiency and accurate in transmission and is applicable to racing bicycles or tourist bicycles.
Description
Technical field
The present invention relates to bicycle repacking field, specifically a kind of transmission mechanism without chain planetary gear bicycle and
Its bicycle.
Background technology
Bicycle is the vehicles of common of people's daily life, and its energy-conserving and environment-protective has certain body-building function, big at present
The transmission mechanism of most bicycles is all chain drive, and manpower is stepped on the rotation of footboard drives chain wheel, reached power by chain
The flywheel of bicycle rear, drives bicycle rear to rotate by flywheel, and has no and set up other effort-saving mechanisms, suitably reduces
Ride intensity.This chain-wheel bicycle advantage is simple and practical, low cost；Have the disadvantage chain-wheel bicycle in ride
Have drag chain, chain rupture, clamp trousers and lubricating oil make dirty trousers the problems such as.
Therefore, a kind of high speed and labour-saving bicycle are designed, this cycling is lighter, and capacity of road is more
By force, speed is some higher, and change chain-wheel bicycle drag chain, chain rupture, clamp trousers and make dirty trousers the problems such as, be designed with one
Fixed practical value.
The content of the invention
It is an object of the present invention to provide a kind of transmission mechanism without chain planetary gear bicycle, with avoiding hanging
Chain, easily repacking, highly versatile, transmission efficiency, be driven it is accurate the advantages of；Another purpose is to provide one kind without chain planet tooth
Wheel bicycle, fireballing effect light with riding.
To achieve the above object, a kind of transmission mechanism without chain planetary gear bicycle of the present invention, including vehicle frame, with
And the wheel being fixed on vehicle frame, planetary gear system is additionally provided with the vehicle frame, the planetary gear system includes receiving external force
The sun gear of driving, the sun gear is engaged with planetary gear, and planetary gear is engaged with the internal tooth of the gear ring being fixed on vehicle frame,
Planet carrier is provided with the planetary gear, the planet carrier hinge-coupled has driving crank；The end hinge of driving crank
Chain is fixedly connected kinematic link, and is coupled with parallel moving mechanism by kinematic link, and the parallel moving mechanism couples drive link, institute
Drive link hinge is stated to couple with the driving crank of bicycle rear is driven.
Bicycle crank arm is installed with the sun gear, and the end of bicycle crank arm is provided with pedal.
The parallel moving mechanism is made up of gear and the annular rack engaged with gear, kinematic link and drive link and tooth
Wheel connection.
The parallel moving mechanism is made up of sliding block and the slideway being engaged with sliding block, kinematic link and drive link and sliding block
Connection.
A kind of transmission mechanism without chain planetary gear bicycle of the present invention, including vehicle frame, and be fixed on vehicle frame
Wheel, be additionally provided with planetary gear system on the vehicle frame, the planetary gear system includes the sun gear driven by external force, institute
State sun gear to be engaged with planetary gear, the planetary gear is installed on planet carrier, gear ring is fixed with the vehicle frame；Planet tooth
Wheel is engaged with the internal tooth of gear ring, and the sun gear hinge has driving crank, and the driving crank moves in a circle with sun gear；Pass
Dynamic crank is connected by kinematic link with parallel moving mechanism；The parallel moving mechanism passes through drive link hinge and is fixed on driving cog
The driving crank I for driving travelling gear in wheel frame is coupled；Travelling gear and the drive gear for driving bicycle rear
Engagement.
Be installed with bicycle crank arm on the sun gear, and bicycle crank arm both ends be provided with it is foot-operated
Plate.
The parallel moving mechanism is made up of gear and the annular rack engaged with gear, kinematic link and drive link and tooth
Wheel connection.
The parallel moving mechanism is made up of sliding block and the slideway being engaged with sliding block, kinematic link and drive link and sliding block
Connection.
A kind of bicycle of the present invention, it is characterised in that use above-mentioned transmission mechanism.
Design theory：
Planetary gear mechanism typical case and simple structure, if the one of element of fixation, one work of two other element
It is input, another output, this planetary gears can reach the effect of variable-speed torque-converting.
This planetary gears kinetic characteristic equation is：
nt-(1+α)nh+αnq=0 (formula 1)
If the ratio between the gear ring number of teeth and sun gear number of teeth are α=Zq/Zt。nt- sun wheel speed, nq- gear ring rotating speed, nh- planet
Frame rotating speed
From formula 1 as can be seen that if gear ring is fixed, planet carrier input, sun gear output, then the rotating speed of planetary gears
1+ α times are increased after sun gear is exported.
Design
Using the transmission mechanism of bicycle sketch of this technology as shown in Fig. 2 gear ring 3 and bicycle apparatus in planetary gears
Frame is consolidated, and planet carrier 11 and bicycle crank arm 2 are connected, and people drives planet carrier to rotate, planet by stepping on bicycle pedal 1
Frame drives sun gear 12 to rotate by planetary gear 14, and driving crank 4 is provided with sun gear, and it does circumference and transports with sun gear
It is dynamic, and linear reciprocating motion is done in annular rack with moving gear by kinematic link 5, drive link is again connected to gear
On, drive crank and bicycle rear synchronously to link, drive bicycle rear to rotate by drive link.
Transmission mechanism analysis contrast
The trailing wheel of chain-wheel bicycle is driven by flywheel, as long as shown in figure 3, effect is big with chain pull torque on flywheel
In ground drag square, bicycle can be with advance.Similarly, driven by driving crank using the bicycle rear of this technology, as long as
Acting on driving crank A points (Fig. 2) pull-up torque can drive bicycle to advance more than ground drag square.
(1) bicycle rear drives pulling force contrast
The chain-wheel bicycle transmission mechanism tables of data of table 1, table 2 uses the transmission mechanism of bicycle tables of data of this technology.
The chain-wheel bicycle transmission mechanism tables of data of table 1
| Title | The chain wheel number of teeth | The flywheel number of teeth | Centre-to-centre spacing | Trailing wheel radius | Chain pitch (p) | Chain number |
| Numerical value | 32 | 16 | 430 | 300mm | 12.7 | 96 |
Table 2 uses the transmission mechanism of bicycle tables of data of this technology
| Title | Driving crank | Kinematic link | Drive link | Drive crank | Sun gear | Gear ring | Planetary gear | Module | Gear |
| Numerical value | 36mm | 132mm | 360.25mm | 98.25mm | 25 teeth | 59 teeth | 17 teeth | 2 | 17 teeth |
According to the force diagram of bicycle rear in Fig. 3, the driving element of chain-wheel bicycle trailing wheel is flywheel, and uses this skill
The driving element of the bicycle rear of art is to drive crank, by chain-wheel bicycle and the respective drive of bicycle using this technology
Dynamic pulling force formula calculates two kinds of required driving pulling force of bicycle rear.
Formula 2 is that chain-wheel bicycle drives pulling force computing formula, wherein FZ- ground drag, RC- bicycle rear radius, p- chains
Wheel pitch, the z- flywheel numbers of teeth.
Formula 3 is to drive pulling force computing formula, wherein L using the bicycle of this technologyq- drive crank length, FZAnd RCMeaning
With formula 2.
(2) rotating speed contrast
Bring the parameter of Tables 1 and 2 into formula 4 and formula 7, the rotating ratio of chain-wheel bicycle is calculated respectively and using this technology
The rotating ratio of bicycle.
Formula 4 is chain-wheel bicycle speed ratio calculation formula, ny、nfRespectively chain wheel and Speed of Reaction Wheels, Zy、ZfRespectively tooth
Disk and the flywheel number of teeth.
Use the transmission mechanism of bicycle of this technology for typical double to innermost being handle parallel moving mechanism, traditional song is replaced with gear
Sliding block in handle slide block mechanism reduces friction and wear, and the translational speed of gear 10 is：
Using the bicycle of this technology by after optimization design, driving crank and kinematic link are with driving crank and the company of driving
The relation of bar is as follows：
Show that the angular speed of driving crank is identical with the angular speed of crank is driven by above formula, as long as learning the angle of driving crank
Speed just can obtain driving the angular speed of crank, therefore it is the value of formula 7 to use the input and output rotating ratio of the bicycle of this technology：
N in formulat、Zt- the sun wheel speed number of teeth, nx- planet carrier rotating speed, Zq- gear ring the number of teeth.
Assuming that ground drag is 3kg, manpower drives pedal to rotate a circle, and brings the data of Tables 1 and 2 into above each public affairs
Formula obtains the driving pulling force and rotating ratio of chain-wheel bicycle, and using this technology bicycle driving pulling force and rotating speed such as
Shown in following table.
The conclusion contrast table of table 3
| Title | FL1 | FL2 | i1 | i2 |
| Numerical value | 27.65kg | 18.32kg | 0.5 | 0.298 |
Be can be seen that under conditions of road resistance is constant from the data of table 3, using the bicycle of this technology than sprocket wheel
Bicycle is more laborsaving.In the case that manpower pedal plate equally steps on a circle, rotated 2 weeks after chain-wheel bicycle, and use this
The bicycle of technology turns 3.36 weeks, and the transmission mechanism of bicycle of the use this technology designed by above-mentioned 2 conclusions are found out is more
It is superior.
Without chain planetary gear bicycle and its transmission system, its advantage is one kind of the present invention：
(1) on the basis of chain-wheel bicycle, after improving transmission mechanism, bicycle is more laborsaving, and speed is improved；
(2) cancel chain, replace chain gear transmission using annular rack, this avoid chain sling, chain rupture, clamp trousers etc. lack
Point, using more cleaning；
(3) repacking is also easier, with stronger versatility；
(4) transmission efficiency is higher, is driven more accurate；
(5) installing the bicycle speed of this transmission mechanism, to be higher by chain-wheel bicycle a lot, thus can be used for racing car or
Person's bicycle for tourist.
Brief description of the drawings
Fig. 1 is planetary gears sketch；
Fig. 2 uses the transmission mechanism of bicycle front view of this technology；
Fig. 3 bicycle rear force diagrams；
The transmission mechanism structure diagram of Fig. 4 alternative solutions；
Fig. 5 uses the force bike transmission mechanism top view of this technology；
In figure：1- pedals, 2- bicycle crank arms, 3- gear rings, 4- driving cranks, 5- kinematic links, 6- annular racks,
7- drive links, 8- drive crank, 9- bicycle rears, 10- gears, 11- planet carriers, 12- sun gears, 13- planetary gear shafts,
14- planetary gears, 15- travelling gears, 16- drive crank I, 17- travelling gear frame, 18- drive gears, 19- flywheels, 20-
Chain, 21- ground.
Specific embodiment
Embodiment 1
As shown in Fig. 1,2,5, a kind of transmission mechanism without chain planetary gear bicycle, including vehicle frame, and it is fixed on car
Wheel on frame, is additionally provided with planetary gear system on the vehicle frame, the planetary gear system includes the sun driven by external force
Wheel 12, the sun gear 12 is engaged with planetary gear 14, and planetary gear (14) is nibbled with the internal tooth of the gear ring 3 being fixed on vehicle frame
Close, planet carrier 11 is provided with the planetary gear 14, the hinge-coupled of the planet carrier 11 has driving crank 4；Driving crank 4
End hinge be fixedly connected and have kinematic link 5, and coupled with parallel moving mechanism by kinematic link 5, the parallel moving mechanism connection
Drive link 7 is connect, the drive link 7 is coupled with hinge with the driving crank 8 of bicycle rear is driven；On the sun gear 12
Bicycle crank arm 2 is installed with, and the end of bicycle crank arm 2 is provided with pedal 1；Parallel moving mechanism by gear 10 with
And the annular rack 6 engaged with gear 10 is constituted, kinematic link 5 and drive link 7 couple with gear 10.
When in use, people drives sun gear 12 to rotate by stepping on bicycle pedal 1, and sun gear 12 drives and engages
Planetary gear 14, planetary gear 14 is installed on planet carrier 11, and planetary gear 14 is engaged with the internal tooth of gear ring 3, planetary gear
14 rotate drive planet carrier 11 is rotated, and driving crank 4 is provided with planet carrier 11, and the driving crank 4 is transported with planet carrier 11
Dynamic to drive the gear 10 being connected with kinematic link 5 that linear reciprocating motion is done in annular rack 6, gear 10 passes through drive link 7
Link with the driving crank 8 on bicycle rear 9, drive bicycle rear 9 to rotate.
Embodiment 2
As shown in Fig. 1,2,5, a kind of transmission mechanism without chain planetary gear bicycle, parallel moving mechanism by sliding block and with cunning
The slideway that block is engaged is constituted, and kinematic link 5 and drive link 7 couple with sliding block, and remaining is with embodiment 1.
Embodiment 3
As shown in Fig. 1,4, a kind of transmission mechanism without chain planetary gear bicycle, including vehicle frame, and it is fixed on vehicle frame
On wheel, be additionally provided with planetary gear system on the vehicle frame, the planetary gear system includes the sun gear driven by external force
12, the sun gear 12 is engaged with planetary gear 14, and the planetary gear 14 is installed on planet carrier 11, fixed on the vehicle frame
There is gear ring 3；Planetary gear 14 is engaged with the internal tooth of gear ring 3, and the hinge of the sun gear 12 has driving crank 4, the driving crank 4
Moved in a circle with sun gear 12；Driving crank 4 is connected by kinematic link 5 with parallel moving mechanism；The parallel moving mechanism is by driving
Dynamic connecting rod 7 is coupled with hinge with crank I 16 is driven；The parallel moving mechanism is same with bicycle rear 9 by travelling gear frame 17
The hinge of drive gear 18 that axle is installed；Travelling gear 15 is engaged with drive gear 18；Bicycle is installed with sun gear 12
Crank arm 2, and the both ends of bicycle crank arm 2 are provided with pedal 1；The parallel moving mechanism by gear 10 and with gear 10
The annular rack 6 of engagement is constituted, and kinematic link 5 and drive link 7 couple with gear 10.
When in use, people drives sun gear 12 to rotate by stepping on bicycle pedal 1, and sun gear 12 drives and engages
Planetary gear 14, planetary gear 14 is installed on planet carrier 11, and planetary gear 14 is engaged with the internal tooth of gear ring 3, planetary gear
14 rotate drive planet carrier 11 is rotated, and driving crank 4 is provided with planet carrier 11, and the driving crank 4 is transported with planet carrier 11
Dynamic to drive the gear 10 being connected with kinematic link 5 that linear reciprocating motion is done in annular rack 6, gear 10 passes through drive link 7
Rotated with nutating gear 15 with crank I 16 is driven；The parallel moving mechanism passes through the hinge of drive link 7 and is fixed on transmission
On pinion stand 17；Travelling gear 15 is engaged with the drive gear 18 of bicycle rear 9 is driven, therefore drive drive gear 18 makes
Bicycle rear 9 is obtained to rotate.
Claims (9)
1. a kind of transmission mechanism without chain planetary gear bicycle, including vehicle frame, and the wheel being fixed on vehicle frame, the vehicle frame
On be additionally provided with planetary gear system, it is characterised in that：The planetary gear system includes the sun gear (12) driven by external force,
The sun gear (12) is engaged with planetary gear (14), and planetary gear (14) is nibbled with the internal tooth of the gear ring (3) being fixed on vehicle frame
Close, planet carrier (11) is provided with the planetary gear (14), the planet carrier (11) has driving crank (4) with hinge-coupled；
The end hinge of driving crank (4) is fixedly connected kinematic link (5), and is coupled with parallel moving mechanism by kinematic link (5),
The parallel moving mechanism couples drive link (7), and the drive link (7) uses hinge and drives the driving crank of bicycle rear
(8) couple.
2. as claimed in claim 1 a kind of transmission mechanism without chain planetary gear bicycle, it is characterised in that：The sun gear
(12) bicycle crank arm (2) is installed with, and the end of bicycle crank arm (2) is provided with pedal (1).
3. as claimed in claim 1 or 2 a kind of transmission mechanism without chain planetary gear bicycle, it is characterised in that：The translation
Mechanism is made up of gear (10) and the annular rack (6) engaged with gear (10), kinematic link (5) and drive link (7) with
Gear (10) couples.
4. as claimed in claim 1 or 2 a kind of transmission mechanism without chain planetary gear bicycle, it is characterised in that：The translation
Mechanism is made up of sliding block and the slideway being engaged with sliding block, and kinematic link (5) and drive link (7) couple with sliding block.
5. a kind of transmission mechanism without chain planetary gear bicycle, including vehicle frame, and the wheel being fixed on vehicle frame, the vehicle frame
On be additionally provided with planetary gear system, it is characterised in that：The planetary gear system includes the sun gear (12) driven by external force,
The sun gear (12) is engaged with planetary gear (14), and the planetary gear (14) is installed on planet carrier (11), the vehicle frame
On be fixed with gear ring (3)；Planetary gear (14) is engaged with the internal tooth of gear ring (3), and sun gear (12) hinge has driving crank
(4), the driving crank (4) moves in a circle with sun gear (12)；Driving crank (4) is by kinematic link (5) and translation machine
Structure is connected；The parallel moving mechanism passes through drive link (7) hinge and is fixed in travelling gear frame (17) for driving
Driving crank I (16) of travelling gear (15) is coupled；Travelling gear (15) and the drive gear (18) for driving bicycle rear (9)
Engagement.
6. as claimed in claim 5 a kind of transmission mechanism without chain planetary gear bicycle, it is characterised in that：The sun gear
(12) bicycle crank arm (2) is installed with, and the both ends of bicycle crank arm (2) are provided with pedal (1).
7. a kind of transmission mechanism without chain planetary gear bicycle as described in claim 5 or 6, it is characterised in that：The translation
Mechanism is made up of gear (10) and the annular rack (6) engaged with gear (10), kinematic link (5) and drive link (7) with
Gear (10) couples.
8. a kind of transmission mechanism without chain planetary gear bicycle as described in claim 5 or 6, it is characterised in that：The translation
Mechanism is made up of sliding block and the slideway being engaged with sliding block, and kinematic link (5) and drive link (7) couple with sliding block.
9. a kind of bicycle, it is characterised in that any one transmission mechanism of usage right requirement 1 to claim 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710003949.0A CN106697171A (en) | 2017-01-04 | 2017-01-04 | Chainless planetary gear type bicycle and transmission mechanism thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710003949.0A CN106697171A (en) | 2017-01-04 | 2017-01-04 | Chainless planetary gear type bicycle and transmission mechanism thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106697171A true CN106697171A (en) | 2017-05-24 |
Family
ID=58905868
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710003949.0A Withdrawn CN106697171A (en) | 2017-01-04 | 2017-01-04 | Chainless planetary gear type bicycle and transmission mechanism thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106697171A (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2124863U (en) * | 1992-03-08 | 1992-12-16 | 李国忠 | Front pedal chainless bicycle |
| CN2379387Y (en) * | 1998-11-26 | 2000-05-24 | 鲁立平 | Satellite wheel transmission type pedal lever bicycle |
| CN201575108U (en) * | 2009-01-14 | 2010-09-08 | 余俊均 | Power conversion equipment |
| EP2762397A1 (en) * | 2013-02-04 | 2014-08-06 | Alfonso Micheli | Bicycle for riding equipped with a continuously variable transmission |
| KR20140109163A (en) * | 2013-03-05 | 2014-09-15 | 신석주 | Power transmission device of chainless bicycle |
| CN204713284U (en) * | 2015-05-26 | 2015-10-21 | 王晓宁 | The reciprocal bicycle of arm-chair type |
| CN105752261A (en) * | 2016-04-07 | 2016-07-13 | 常州大学 | Chainless bicycle based on cam-crank-slide bar transmission |
| CN106114744A (en) * | 2016-08-18 | 2016-11-16 | 杨锡辉 | A kind of labour-saving new bicycle |
| CN206528587U (en) * | 2017-01-04 | 2017-09-29 | 兰州工业学院 | A kind of transmission mechanism and its bicycle without chain planetary gear bicycle |
-
2017
- 2017-01-04 CN CN201710003949.0A patent/CN106697171A/en not_active Withdrawn
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2124863U (en) * | 1992-03-08 | 1992-12-16 | 李国忠 | Front pedal chainless bicycle |
| CN2379387Y (en) * | 1998-11-26 | 2000-05-24 | 鲁立平 | Satellite wheel transmission type pedal lever bicycle |
| CN201575108U (en) * | 2009-01-14 | 2010-09-08 | 余俊均 | Power conversion equipment |
| EP2762397A1 (en) * | 2013-02-04 | 2014-08-06 | Alfonso Micheli | Bicycle for riding equipped with a continuously variable transmission |
| KR20140109163A (en) * | 2013-03-05 | 2014-09-15 | 신석주 | Power transmission device of chainless bicycle |
| CN204713284U (en) * | 2015-05-26 | 2015-10-21 | 王晓宁 | The reciprocal bicycle of arm-chair type |
| CN105752261A (en) * | 2016-04-07 | 2016-07-13 | 常州大学 | Chainless bicycle based on cam-crank-slide bar transmission |
| CN106114744A (en) * | 2016-08-18 | 2016-11-16 | 杨锡辉 | A kind of labour-saving new bicycle |
| CN206528587U (en) * | 2017-01-04 | 2017-09-29 | 兰州工业学院 | A kind of transmission mechanism and its bicycle without chain planetary gear bicycle |
Non-Patent Citations (1)
| Title |
|---|
| 冯永亮，徐家顺: "《汽车自动变速器检修一体化项目教程》", 31 January 2012, 上海交通大学出版社 * |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20170524 |