WO2015005757A1 - Electric friction bicycle drive - Google Patents

Electric friction bicycle drive Download PDF

Info

Publication number
WO2015005757A1
WO2015005757A1 PCT/LT2014/000010 LT2014000010W WO2015005757A1 WO 2015005757 A1 WO2015005757 A1 WO 2015005757A1 LT 2014000010 W LT2014000010 W LT 2014000010W WO 2015005757 A1 WO2015005757 A1 WO 2015005757A1
Authority
WO
WIPO (PCT)
Prior art keywords
drive
mounting unit
unit
bicycle
drive mechanism
Prior art date
Application number
PCT/LT2014/000010
Other languages
French (fr)
Inventor
Gediminas NEMANIS
Original Assignee
Uab "Elinta"
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 Uab "Elinta" filed Critical Uab "Elinta"
Publication of WO2015005757A1 publication Critical patent/WO2015005757A1/en

Links

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
    • B62M13/00—Transmissions characterised by use of friction rollers engaging the periphery of the ground wheel
    • B62M13/04—Transmissions characterised by use of friction rollers engaging the periphery of the ground wheel with means for moving roller into driving contact with ground wheel
    • 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
    • B62M6/00—Rider propulsion of wheeled vehicles with additional source of power, e.g. combustion engine or electric motor
    • B62M6/40—Rider propelled cycles with auxiliary electric motor
    • B62M6/75—Rider propelled cycles with auxiliary electric motor power-driven by friction rollers or gears engaging the ground wheel

Definitions

  • the invention relates to bicycle techniques and is assigned to additional electric bicycle gears when the bicycle is additionally powered by the shaft of electric actuator mechanism, pressed to the bicycle wheel tire.
  • a drive mechanism usually a DC electric motor
  • a drive roller clamped to the front wheel or rear wheel tire of the bike
  • mounted units to the bicycle frame pipe
  • power source battery
  • electronics and control units Requirements for this type of drives are: they have to be compact, easy to install, have simple controls and be universal.
  • the drawback of this invention is that the attachment and adjustment units have a complex structure.
  • Patent US20040251068 describes an electric friction bicycle drive mounted in the easily removable unit and consisting of the driving and the fastening mechanisms.
  • the invention describes the drive mounting, locking and control units, but does not describe the guide mechanism design.
  • the prototype of this invention is patent US201 10232985, in Which the bicycle drive consists of the attachment to the bicycle frame assembly, the unit for clamping to the bicycle wheel tire and the drive mechanism.
  • the battery and the electronics unit are attached to the bicycle frame separately.
  • the described bicycle drive cannot be used on bicycles with shock absorbers where the bicycle wheel tire position is moving in respect of the frame in a wide range while driving.
  • the proposed design of the drive is complex in that it consists of two units and requires the external electrical connection of the units.
  • the invention offers electrical friction drive of the bicycle which has no drawbacks mentioned above.
  • Electric friction bicycle drive consists of a housing, a mounting unit, a drive mechanism, a clamping unit, an additionally built-in battery and an electronics unit.
  • the retainers of the mounting unit and the driving mechanism are attached in the ends of the housing and the battery and the electronics unit are inserted inside the housing.
  • the drive mechanism consists of an electric motor with an external rotor, the guide shaft and the cylindrical enclosure, inside of which the outer rotor is rigidly mounted and the drive shaft is mounted on the outside.
  • the drive mechanism is mounted within the cylindrical enclosure with rolling bearings in the housing of the drive mechanism.
  • the mounting unit consists of the connecting and the clamping parts interconnected with a hinge, and the lock unit.
  • the holder of the mounting unit has the axis on which the connecting part of the mounting unit is assembled.
  • the lock unit consists of bushing with a screw hole perpendicular to the axis of the cylinder, and the screw with the hinge for the attachment of the handle in the end.
  • the mounting unit holder and the connecting part of the mounting unit have cavities upon alignment of which it is possible to insert the locking pin to capture the bicycle drive in the disconnected position.
  • the connecting and the clamping parts of the mounting unit have the superposed cutouts through which the screw is inserted in the threaded hole of the bushing.
  • the screw together with the bushing can turn up to 90°.
  • the mounting unit holder has a cutout which coincides with the cut-outs in the connecting and the clamping parts of the mounting unit when the bicycle drive is in off position.
  • the clamping unit is designed as a gas spring with the ends attached through hinges to the connecting part of the mounting unit and the housing.
  • the bushing is inserted into the hole made in the connecting part of the mounting unit.
  • the bicycle gear has a handle for carrying, the electrical connection is mounted in the housing for the drive connection with the control elements and battery charging, the housing with the mounting unit and driving mechanism holders can be made as a solid piece, the drive shaft surface in contact with the bicycle tire is concave.
  • Fig. 1 shows the electric actuator of the bicycle mounted on the bicycle
  • Fig. 2 shows the drive mechanism design
  • Fig. 3 shows the design of the mounting unit.
  • Fig. 1 shows the electric actuator of the bicycle mounted on the bicycle.
  • the drive consists of the housing 1, the mounting unit 2, suppression unit 3, and the driving mechanism 4.
  • the two retainers 5, 6 are attached in the end of the housing 1.
  • the retainers are used for the attachment of the mounting unit 2 and the driving mechanism 4, respectively.
  • the clamping unit 3 is made as a gas spring 7 which is pivotally attached at one end to the mounting unit 2, and with the other end - to the housing 1.
  • the housing 1 has a handle 8.
  • the housing 1 also has the electronics unit 9 and the battery 10.
  • the electrical connection 1 1 is mounted in the housing 1 to connect the control elements to the electronic unit 9 of the drive.
  • the drive is mounted on the pipe 12 of the bicycle seat 1 1 and pressed to the tire 13 of the bicycle rear wheel.
  • Fig. 2 shows the design of the drive mechanism 4. Its main component is the electric motor 14, with the stator 15 attached to a wall 6a of the holder 6.
  • the cylindrical enclosure 17 is Fitted on the outer rotor 16.
  • the cylindrical enclosure 17 is attached via rolling bearings in the walls 6a and 6b of the retainer 6.
  • the drive rollerl8 is mounted on the cylindrical enclosure 17.
  • Fig. 3 shows the mounting unit 2.
  • the mounting unit 2 is mounted in the holder 5.
  • the mounting unit 2 consists of the connecting 19 and the clamping 20 parts interconnected with the hinge 21 , and the lock unit 22.
  • the connecting part 19 is connected with the holder 5 of the mounting unit 2 with an axis 23.
  • the lock unit 22 consists of the bushing 24 inserted into the hole made in the connecting part 1 , and the screw 25 with the hinge attachment of the handle 26.
  • the bushing 24 is made perpendicular to its axis in the threaded hole.
  • the connected 19 and the clamping 20 part of the lock unit 2 have cut-outs through which the screw 25 with the hinge attachment of the handle 26 is screwed in within the threaded hole of the bushing 24.
  • the holder 5 of the mounting unit 2 has a hole, and a similar hole is in the connecting part 19. Upon aligning them, the locking pin 27 can be inserted. It fixes the drive mechanism in the off position (the drive mechanism is raised and the drive shaft 18 is not in contact with the tire 13).
  • the drive has two fixed positions - the working position when the drive shaft 18 of the gear is pressed to the bicycle tire 13, and the off position when the gear is raised and the drive shaft 18 is not in contact with the tire 13.
  • the locking pin 27 Before installation, the locking pin 27 must be inserted into the holes in the holder 5 and the connecting part 19.
  • the screw 25 is partially unscrewed and is turned at an angle of 90°, releasing the clamping part 20. It is folded back, the connecting part 19 of the drive is clamped to the pipe of the bicycle seat 1 1 , the clamping parts 20 is folded, the screw 25 with handle 26 is turned backwards, namely inserting into the cut-out in the connecting 19 and the clamping parts 20, and by turning the handle 26 the pipe 12 is pressed.
  • the pipe 12 is pressed.
  • the drive is dismounted from the bicycle in the reverse order: the drive is raised (shifted) from tire 13, upon aligning the holes in the holder 5, the locking pin 27 is inserted in the connecting part 19, by turning the handle 26 the connecting 19 and the clamping 20 parts are released and the drive is dismounted from the bicycle.
  • the steering wheel must be additionally fitted with an engine power throttle (accelerator) (not shown in the drawings and not mentioned in the description) and connected via a cable to the connector 1 1 with an electric drive.
  • engine power throttle accelerelerator
  • the electrical motor 14 When the thottle is pressed or turned, power is supplied from the battery 10 through the electronic unit 9 to the electrical motor 14 which turns and passes the torque through the driving roller 18 and the bicycle tire 13 to the bicycle wheel, and the bicycle becomes an electric vehicle.
  • the battery 10 can be charged after removing or not removing the drive from the bicycle.
  • the charger plug-in is connected to the electric actuator's connector 1 1.
  • the drive has a solid design with all necessary components and elements in it;
  • the drive can be mounted to the bicycle of any design
  • the gas spring 7 is used for suppression to the bicycle tire 13.
  • the spring has stable clamping characteristics within the wide range of motion, therefore the drive can be mounted on bicycles with shock absorbers;
  • the drive mounting on the bicycle is very simple.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Arrangement Or Mounting Of Propulsion Units For Vehicles (AREA)
  • Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)

Abstract

The invention relates to bicycle machinery and is assigned to additional electric bicycle gears when the bicycle is additionally powered by the roller of the electric drive mechanism, pressed to the bicycle wheel tire. The drive consists of the housing (1), the mounting unit (2), the drive mechanism (4), the suppression unit (3) and the additionally built-in battery (10), and the electronics unit (9). The drive mechanism (4) consists of the electric motor (14) with the external rotor (15), the drive roller (18) and the cylindrical enclosure (17), inside of which the outer rotor (15) is rigidly mounted and the drive roller(18) is mounted on the outside. The drive mechanism (4) is mounted within the cylindrical enclosure (17) with rolling bearings in the retainer (6) of the drive mechanism (4). The mounting unit (2) consists of the connecting (19) and the clamping (20) parts interconnected with the hinge (21), and the lock unit (22). The holder (5) of the mounting unit (2) has the axis (23) on which the connecting part (19) of the mounting unit (2) is assembled. The lock unit (22) consists of the sleeve (24) with a screw hole perpendicular to the axis of the cylinder, and the screw (25) with the hinge for the attachment of the handle (26). The clamping unit (3) is designed as a gas spring (7) with the ends attached by hinges to the connecting part (19) of the mounting unit (2) and the housing (1). ˙

Description

ELECTRIC FRICTION BICYCLE DRIVE
The invention relates to bicycle techniques and is assigned to additional electric bicycle gears when the bicycle is additionally powered by the shaft of electric actuator mechanism, pressed to the bicycle wheel tire.
Recently, the bicycle has become a popular eco-friendly vehicle. In order to expand the standard possibilities of using a bicycle, the compact, mostly electrical and easy to mount drives are used. The present invention analyses and offers this type of gear. Main components of such gears are: a drive mechanism, usually a DC electric motor, a drive roller, clamped to the front wheel or rear wheel tire of the bike, mounted units to the bicycle frame pipe, unit for the clamping of the guide roller to the tire, power source (battery), and the electronics and control units. Requirements for this type of drives are: they have to be compact, easy to install, have simple controls and be universal.
There is a known electric friction drive removable from the bicycle (see patent US20050269146), consisting of a drive and an attachment mechanism mounted in the housing. The patent describes in sufficient detail the methods and means for the attachment of removable drive to the connection of the bicycle frame pipe, position adjustment and means allowed to use a particular drive in the bicycles of various size and configuration.
The drawback of this invention is that the attachment and adjustment units have a complex structure.
Patent US20040251068 describes an electric friction bicycle drive mounted in the easily removable unit and consisting of the driving and the fastening mechanisms.
The invention describes the drive mounting, locking and control units, but does not describe the guide mechanism design.
The prototype of this invention is patent US201 10232985, in Which the bicycle drive consists of the attachment to the bicycle frame assembly, the unit for clamping to the bicycle wheel tire and the drive mechanism. The battery and the electronics unit are attached to the bicycle frame separately.
The described bicycle drive cannot be used on bicycles with shock absorbers where the bicycle wheel tire position is moving in respect of the frame in a wide range while driving. The proposed design of the drive is complex in that it consists of two units and requires the external electrical connection of the units.
The invention offers electrical friction drive of the bicycle which has no drawbacks mentioned above.
The main features of the proposed invention.
Electric friction bicycle drive consists of a housing, a mounting unit, a drive mechanism, a clamping unit, an additionally built-in battery and an electronics unit.
The retainers of the mounting unit and the driving mechanism are attached in the ends of the housing and the battery and the electronics unit are inserted inside the housing.
The drive mechanism consists of an electric motor with an external rotor, the guide shaft and the cylindrical enclosure, inside of which the outer rotor is rigidly mounted and the drive shaft is mounted on the outside. The drive mechanism is mounted within the cylindrical enclosure with rolling bearings in the housing of the drive mechanism.
The mounting unit consists of the connecting and the clamping parts interconnected with a hinge, and the lock unit. The holder of the mounting unit has the axis on which the connecting part of the mounting unit is assembled. The lock unit consists of bushing with a screw hole perpendicular to the axis of the cylinder, and the screw with the hinge for the attachment of the handle in the end.
The mounting unit holder and the connecting part of the mounting unit have cavities upon alignment of which it is possible to insert the locking pin to capture the bicycle drive in the disconnected position. The connecting and the clamping parts of the mounting unit have the superposed cutouts through which the screw is inserted in the threaded hole of the bushing. The screw together with the bushing can turn up to 90°. The mounting unit holder has a cutout which coincides with the cut-outs in the connecting and the clamping parts of the mounting unit when the bicycle drive is in off position.
The clamping unit is designed as a gas spring with the ends attached through hinges to the connecting part of the mounting unit and the housing. The bushing is inserted into the hole made in the connecting part of the mounting unit.
Additional features of the proposed invention. The bicycle gear has a handle for carrying, the electrical connection is mounted in the housing for the drive connection with the control elements and battery charging, the housing with the mounting unit and driving mechanism holders can be made as a solid piece, the drive shaft surface in contact with the bicycle tire is concave.
The essence of the invention is explained in the drawings:
Fig. 1 shows the electric actuator of the bicycle mounted on the bicycle,
Fig. 2 shows the drive mechanism design,
Fig. 3 shows the design of the mounting unit.
Description of the design of electric friction drive of the bicycle.
Fig. 1 shows the electric actuator of the bicycle mounted on the bicycle. The drive consists of the housing 1, the mounting unit 2, suppression unit 3, and the driving mechanism 4. The two retainers 5, 6 are attached in the end of the housing 1. The retainers are used for the attachment of the mounting unit 2 and the driving mechanism 4, respectively. The clamping unit 3 is made as a gas spring 7 which is pivotally attached at one end to the mounting unit 2, and with the other end - to the housing 1. For convenience of carrying the drive, the housing 1 has a handle 8. The housing 1 also has the electronics unit 9 and the battery 10. The electrical connection 1 1 is mounted in the housing 1 to connect the control elements to the electronic unit 9 of the drive. The drive is mounted on the pipe 12 of the bicycle seat 1 1 and pressed to the tire 13 of the bicycle rear wheel.
Fig. 2 shows the design of the drive mechanism 4. Its main component is the electric motor 14, with the stator 15 attached to a wall 6a of the holder 6. The cylindrical enclosure 17 is Fitted on the outer rotor 16. The cylindrical enclosure 17 is attached via rolling bearings in the walls 6a and 6b of the retainer 6. The drive rollerl8 is mounted on the cylindrical enclosure 17.
Fig. 3 shows the mounting unit 2. The mounting unit 2 is mounted in the holder 5. The mounting unit 2 consists of the connecting 19 and the clamping 20 parts interconnected with the hinge 21 , and the lock unit 22. The connecting part 19 is connected with the holder 5 of the mounting unit 2 with an axis 23.
The lock unit 22 consists of the bushing 24 inserted into the hole made in the connecting part 1 , and the screw 25 with the hinge attachment of the handle 26. The bushing 24 is made perpendicular to its axis in the threaded hole. The connected 19 and the clamping 20 part of the lock unit 2 have cut-outs through which the screw 25 with the hinge attachment of the handle 26 is screwed in within the threaded hole of the bushing 24. The holder 5 of the mounting unit 2 has a hole, and a similar hole is in the connecting part 19. Upon aligning them, the locking pin 27 can be inserted. It fixes the drive mechanism in the off position (the drive mechanism is raised and the drive shaft 18 is not in contact with the tire 13). There is also a cut-out next to the cut- outs 2 in the connecting 19 and the clamping 20 parts in the holder 5. When the locking pin 27 is in place, all positions of cut-outs are aligned, allowing the screw 25 to turn up to 90° angle with the clamping part 20 during the drive installation or removal from the bicycle.
The drive has two fixed positions - the working position when the drive shaft 18 of the gear is pressed to the bicycle tire 13, and the off position when the gear is raised and the drive shaft 18 is not in contact with the tire 13.
Drive installation.
Before installation, the locking pin 27 must be inserted into the holes in the holder 5 and the connecting part 19. When turning the handle 26, the screw 25 is partially unscrewed and is turned at an angle of 90°, releasing the clamping part 20. It is folded back, the connecting part 19 of the drive is clamped to the pipe of the bicycle seat 1 1 , the clamping parts 20 is folded, the screw 25 with handle 26 is turned backwards, namely inserting into the cut-out in the connecting 19 and the clamping parts 20, and by turning the handle 26 the pipe 12 is pressed. Thus secured drive will be in off position. To put the drive into the working position, one has to remove the locking pin 27. Then, under the pressure of the gas spring 7, the housing 1 with the driving mechanism 4 rotates around the axis 23, and the driving roller 18 is pressed to the tire 13.
The drive is dismounted from the bicycle in the reverse order: the drive is raised (shifted) from tire 13, upon aligning the holes in the holder 5, the locking pin 27 is inserted in the connecting part 19, by turning the handle 26 the connecting 19 and the clamping 20 parts are released and the drive is dismounted from the bicycle.
Drive operation in the working position. To use the electrical drive, it must be mounted on the bicycle. The steering wheel must be additionally fitted with an engine power throttle (accelerator) (not shown in the drawings and not mentioned in the description) and connected via a cable to the connector 1 1 with an electric drive. When the thottle is pressed or turned, power is supplied from the battery 10 through the electronic unit 9 to the electrical motor 14 which turns and passes the torque through the driving roller 18 and the bicycle tire 13 to the bicycle wheel, and the bicycle becomes an electric vehicle.
Charging the battery 10. The battery 10 can be charged after removing or not removing the drive from the bicycle. To charge the battery 10, the charger plug-in is connected to the electric actuator's connector 1 1.
The proposed electric bicycle drive has the following advantages:
The drive has a solid design with all necessary components and elements in it;
The drive can be mounted to the bicycle of any design;
The gas spring 7 is used for suppression to the bicycle tire 13. The spring has stable clamping characteristics within the wide range of motion, therefore the drive can be mounted on bicycles with shock absorbers;
The drive mounting on the bicycle is very simple.

Claims

1. Electric friction bicycle drive, comprising the housing (1), the mounting unit (2),
the drive mechanism (4) and the pressure unit (3), characterized in that:
the drive mechanism (4) consists of the electric motor (14) with the external rotor (16), the guide roller (18) and the cylindrical enclosure (17), inside of which the outer rotor (16) is rigidly mounted and the drive roller (18) is mounted on the outside;
the retainers (5, 6) of the mounting unit (2), and the drive mechanism (4) are attached in the ends of the body (1);
the mounting unit (2) consists of the connecting ( 19) and the clamping (20) parts are interconnected with the hinge (21), and the lock unit (22);
the mounting unit (2) of the holder (5) has the axis (23) on which the connecting part (19) of the mounting unit (2) is assembled;
the drive mechanism (4) is mounted within the cylindrical enclosure (17) with rolling bearings in the retainer (6) of the drive mechanism (4);
the clamping unit (3) is designed as a gas spring (7) with the ends attached with hinges to the connecting part (19) of the mounting unit (2), and the housing (1);
the housing (1 ) also has the electronics unit (9) and the battery ( 10).
2. The drive according to claim 1, characterized in that:
the lock unit (22) consists of the bushing (24) with a screw hole perpendicular to the axis of the cylinder, and the screw (25) with the hinge for the attachment of the handle (26) in the end; the bushing (24) is inserted into the hole made in the connecting part (19) of the mounting unit
(2);
the connecting (19) and the clamping (20) parts of the mounting unit (2) have superposed cut outs through which the screw (25) is screwed into the threaded hole of the bushing (24).
3. The drive according to claims 1,2, characterized in that the mounting unit (2) holder (5) and the connecting part (19) of the mounting unit have cavities, upon alignment of which it is possible to insert the locking pin (27) to capture the bicycle drive in the disconnected position, the mounting unit (2) holder (5) has a cut-out which coincides with the cut-outs in the connecting (19) and the clamping (20) parts of the mounting unit (2) when the bicycle drive is in off position, which allows to turn the bushing (24) with the screw (25) and the handle (26) at an angle of 90°.
4. The drive according to claim 1, characterized in that the housing (1) has the electrical connector (1 1) and the carrying handle (8) mounted on it.
5. The drive according to claims 1-3, characterized in that the housing (1), the mounting unit (2), and the holders (5, 6) of the drive mechanism (4) are designed as a single piece.
6. The drive according to claim 1 , characterized in that the surface of the drive roller ( 18) in contact with the bicycle tire ( 13) is concave.
PCT/LT2014/000010 2013-07-11 2014-07-11 Electric friction bicycle drive WO2015005757A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
LT2013071 2013-07-11
LT2013071A LT6125B (en) 2013-07-11 2013-07-11 Electric friction bicycle drive

Publications (1)

Publication Number Publication Date
WO2015005757A1 true WO2015005757A1 (en) 2015-01-15

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ID=51493001

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/LT2014/000010 WO2015005757A1 (en) 2013-07-11 2014-07-11 Electric friction bicycle drive

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WO (1) WO2015005757A1 (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105000124A (en) * 2015-08-12 2015-10-28 杨挺 Bicycle booster
CN105501365A (en) * 2015-12-11 2016-04-20 苏州速蝶科技有限公司 Folding frame and electric folding vehicle
CN105501364A (en) * 2015-12-11 2016-04-20 苏州速蝶科技有限公司 Folding electric bicycle provided with cushioning rear frame
CN106143778A (en) * 2015-04-01 2016-11-23 鸿富锦精密工业（深圳）有限公司 Bicycle and electric booster thereof
CN107521608A (en) * 2017-08-29 2017-12-29 黄大成 A kind of Accelarators for bicycles controlled based on wireless controller and the bicycle for assembling the booster
WO2018004462A1 (en) * 2016-06-29 2018-01-04 Tum Create Limited Electric drive unit for a bicycle
WO2020177279A1 (en) * 2019-03-04 2020-09-10 深圳市正祥科技实业有限公司 Electric scooter having replaceable battery

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
LT6268B (en) 2014-09-16 2016-05-10 Uab "Elinta" Electrical friction drive of bicycle

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5423393A (en) * 1993-11-12 1995-06-13 Felt; Robert M. Auxiliary engine assembly for a bicycle
US20040251068A1 (en) 2003-06-11 2004-12-16 Razor Usa Llc Drive mechanism for use in a man-driven vehicle
US20050269146A1 (en) 2002-09-12 2005-12-08 Motte Dit Falisse Gilles Jacqu Member for fixing a bicycle driving device
US20110232985A1 (en) 2010-03-26 2011-09-29 Chih Hsing Lee Power drive assistant system for bicycle
EP2447145A1 (en) * 2010-10-29 2012-05-02 Günther Hirn Electric drive for a bicycle
KR101249809B1 (en) * 2012-05-17 2013-04-02 강문규 The detachable power unit for a bike

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5423393A (en) * 1993-11-12 1995-06-13 Felt; Robert M. Auxiliary engine assembly for a bicycle
US20050269146A1 (en) 2002-09-12 2005-12-08 Motte Dit Falisse Gilles Jacqu Member for fixing a bicycle driving device
US20040251068A1 (en) 2003-06-11 2004-12-16 Razor Usa Llc Drive mechanism for use in a man-driven vehicle
US20110232985A1 (en) 2010-03-26 2011-09-29 Chih Hsing Lee Power drive assistant system for bicycle
EP2447145A1 (en) * 2010-10-29 2012-05-02 Günther Hirn Electric drive for a bicycle
KR101249809B1 (en) * 2012-05-17 2013-04-02 강문규 The detachable power unit for a bike

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106143778A (en) * 2015-04-01 2016-11-23 鸿富锦精密工业（深圳）有限公司 Bicycle and electric booster thereof
CN105000124A (en) * 2015-08-12 2015-10-28 杨挺 Bicycle booster
CN105501365A (en) * 2015-12-11 2016-04-20 苏州速蝶科技有限公司 Folding frame and electric folding vehicle
CN105501364A (en) * 2015-12-11 2016-04-20 苏州速蝶科技有限公司 Folding electric bicycle provided with cushioning rear frame
CN105501364B (en) * 2015-12-11 2018-06-26 苏州速蝶科技有限公司 Electric motor bicycle with folding with bradyseism Rear frame
WO2018004462A1 (en) * 2016-06-29 2018-01-04 Tum Create Limited Electric drive unit for a bicycle
CN107521608A (en) * 2017-08-29 2017-12-29 黄大成 A kind of Accelarators for bicycles controlled based on wireless controller and the bicycle for assembling the booster
CN107521608B (en) * 2017-08-29 2023-03-31 黄大成 Bicycle booster based on wireless handle control and bicycle equipped with booster
WO2020177279A1 (en) * 2019-03-04 2020-09-10 深圳市正祥科技实业有限公司 Electric scooter having replaceable battery

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Publication number Publication date
LT6125B (en) 2015-03-25
LT2013071A (en) 2015-01-26

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