JP2009073482A - Electric drive system for bicycle - Google Patents

Electric drive system for bicycle Download PDF

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Publication number
JP2009073482A
JP2009073482A JP2008239922A JP2008239922A JP2009073482A JP 2009073482 A JP2009073482 A JP 2009073482A JP 2008239922 A JP2008239922 A JP 2008239922A JP 2008239922 A JP2008239922 A JP 2008239922A JP 2009073482 A JP2009073482 A JP 2009073482A
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Japan
Prior art keywords
bicycle
gear
drive
motor
drive system
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Pending
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JP2008239922A
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Japanese (ja)
Inventor
George French
フレンチ ジョージ
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Bear Corp
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Bear Corp
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Publication of JP2009073482A publication Critical patent/JP2009073482A/en
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    • 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
    • B62M6/60—Rider propelled cycles with auxiliary electric motor power-driven at axle parts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62L—BRAKES SPECIALLY ADAPTED FOR CYCLES
    • B62L1/00—Brakes; Arrangements thereof

Abstract

<P>PROBLEM TO BE SOLVED: To provide a lightweight electric drive system having a simple structure and reduced manufacturing cost for a bicycle. <P>SOLUTION: The electric drive system has a drive motor 20, a brake disk 30, and a drive gear 40. A driven gear 32 is provided on a peripheral edge of the brake disk 30. The drive gear 40 connected to the drive motor 20 is engaged with the driven gear 32 on the peripheral edge of the brake disk 30, and the driven gear 32 receives a power of the drive motor 20 to rotate the brake disk 30. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

本発明は自転車に関するもので、詳細には、自転車用の電動駆動システムに関する。   The present invention relates to a bicycle, and more particularly to an electric drive system for a bicycle.

近年、自転車は現代人にとって徒歩に代わる代表的な乗り物のひとつとなった。自転車には運動効果がある以外に、環境保護、さらには省エネルギーといった利点もある。しかし一部の人達にとって、自転車をこぐことは体力的に大変なことであり、よって従来の自転車に代わって電動自転車を選択する人がでてきた。   In recent years, bicycles have become one of the representative vehicles that replaces walking for modern people. In addition to exercise effects, bicycles have other advantages such as environmental protection and energy saving. However, for some people, riding a bicycle is physically difficult, so some people have chosen an electric bicycle instead of a conventional bicycle.

電動自転車の駆動システムについて、一部の電動自転車はモーターを動力源として、ベベルギアによりモーターの動力を低速時の補助動力に利用している。また一部の電動自転車はモーターを動力源として、大きな磁石によりモーターの回転数を上げてモーターのトルクを向上させている。しかし、どちらのシステムを用いた場合でも、電動自転車の車重が増加し、車体を軽量化するという本来の設計目標が満たされていない。また、ベベルギアあるいは磁石を用いた場合、いずれも構造が複雑になり、電動自転車の製造コストが高くなるという問題がある。   Regarding electric bicycle drive systems, some electric bicycles use a motor as a power source and use the power of the motor as auxiliary power at low speed by a bevel gear. Some electric bicycles also use a motor as a power source to increase the motor torque by increasing the motor speed with a large magnet. However, whichever system is used, the original design goal of increasing the weight of the electric bicycle and reducing the weight of the vehicle body is not satisfied. In addition, when a bevel gear or a magnet is used, there is a problem that the structure becomes complicated and the manufacturing cost of the electric bicycle increases.

本発明の第一の目的は、構造が単純で、製造コストを下げることが可能な自転車用の電動駆動システムを提供することにある。
本発明の第二の目的は、軽量で、電動自転車の車体の軽量化をすることが可能な自転車用の電動駆動システムを提供することにある。 A first object of the present invention is to provide an electric drive system for a bicycle that has a simple structure and can reduce manufacturing costs.
A second object of the present invention is to provide an electric drive system for a bicycle that is lightweight and can reduce the weight of an electric bicycle.

請求項１で述べているように、前記の課題を実現するため、本発明による自転車用の電動駆動システムは駆動用モーター、ブレーキディスク、ドライブギアを有する。ブレーキディスクの周縁にはドリブンギアを有する。駆動用モーターに接合されるドライブギアは、ブレーキディスク周縁のドリブンギアとかみ合い、ドリブンギアは駆動用モーターの動力を受け、ブレーキディスクを回転させる。   As described in claim 1, in order to achieve the above object, an electric drive system for a bicycle according to the present invention includes a drive motor, a brake disk, and a drive gear. A driven gear is provided on the periphery of the brake disc. The drive gear joined to the drive motor meshes with the driven gear on the periphery of the brake disc, and the driven gear receives the power of the drive motor and rotates the brake disc.

上記のように、本発明の構造は極めて単純かつ軽量という特徴を有し、自転車の製造コストを低減しているのみならず、自転車の車体重量が増加することもなく、車体の軽量化に寄与する。   As described above, the structure of the present invention has the feature of being extremely simple and lightweight, not only reducing the manufacturing cost of the bicycle, but also contributing to the weight reduction of the vehicle without increasing the weight of the bicycle. To do.

以下、本発明の実施形態による自転車用の電動駆動システムを、図面に基づいて説明する。
図１に示すように、本発明の実施形態による自転車用の電動駆動システム１０は、駆動用モーター２０、ブレーキディスク３０、ドライブギア４０、およびブレーキキャリパー５０を含む。 Hereinafter, an electric drive system for a bicycle according to an embodiment of the present invention will be described with reference to the drawings.
As shown in FIG. 1, an electric drive system 10 for a bicycle according to an embodiment of the present invention includes a drive motor 20, a brake disk 30, a drive gear 40, and a brake caliper 50.

本発明の実施形態による駆動用モーター２０はブラシレスモーターであり、リチウム電池ユニット（図中未表示）に接続され、駆動用モーター２０は電池ユニットの電力を受けて回転する。駆動用モーター２０は出力軸（図中未表示）を有する。   The driving motor 20 according to the embodiment of the present invention is a brushless motor, and is connected to a lithium battery unit (not shown in the drawing), and the driving motor 20 rotates by receiving power from the battery unit. The drive motor 20 has an output shaft (not shown in the figure).

ブレーキディスク３０は自転車の車輪中央に装着され、ブレーキディスク３０の周縁にはドリブンギア３２を有し、ブレーキディスク３０は１枚の大きなギアとなっている。   The brake disc 30 is attached to the center of the wheel of the bicycle, and has a driven gear 32 on the periphery of the brake disc 30. The brake disc 30 is a single large gear.

ドライブギア４０は駆動用モーター２０の出力軸に接合され、ブレーキディスク３０のドリブンギア３２にかみ合い、駆動用モーター２０の動力はドライブギア４０を経てブレーキディスク３０を回転させる。ドライブギア４０とブレーキディスク３０のドリブンギア３２のギア比は１：１２である。   The drive gear 40 is joined to the output shaft of the drive motor 20 and meshes with the driven gear 32 of the brake disk 30, and the power of the drive motor 20 rotates the brake disk 30 via the drive gear 40. The gear ratio between the drive gear 40 and the driven gear 32 of the brake disc 30 is 1:12.

ブレーキキャリパー５０はブレーキレバー（図中未表示）の動きを受けてブレーキディスク３０を挟み、ブレーキディスク３０の回転を停止させる。
搭乗者が本発明の実施形態による自転車に乗る場合、制御ユニット（図中未表示）を通じ駆動用モーター２０が回転し、駆動用モーター２０はドライブギア４０を回転させ、ドライブギア４０はブレーキディスク３０を回転させる。これにより、自転車は前進する。搭乗者がブレーキをかける場合、ブレーキレバーをつかみ、ブレーキキャリパー５０でブレーキディスク３０を挟むことで、ブレーキがかかり自転車は停止する。 The brake caliper 50 receives the movement of the brake lever (not shown in the figure) and sandwiches the brake disc 30 to stop the rotation of the brake disc 30.
When a passenger rides a bicycle according to an embodiment of the present invention, the drive motor 20 rotates through a control unit (not shown), the drive motor 20 rotates the drive gear 40, and the drive gear 40 is the brake disc 30. Rotate. As a result, the bicycle moves forward. When the passenger applies the brake, the brake is applied and the bicycle is stopped by holding the brake lever and sandwiching the brake disc 30 with the brake caliper 50.

本発明で使用される駆動用モーターは、体積が小さく、高出力、低速回転、高いトルクといった特性を持つブラシレスモーターが採用され、本発明品が自転車に装着されたとき、自転車に安定して動力を提供することができ、自転車の車重が非常に重くなることがないため、車体を軽量化したいという設計目標を達成できる。また、本発明では駆動用モーターを利用してドライブギアを駆動し、ブレーキディスクを回転させており、従来の、モーターを使用、あるいは磁石でモーターのトルクを向上させた電動自転車に比べ、構造が非常に単純で、製造コストを下げることが出来る。   The drive motor used in the present invention employs a brushless motor having characteristics such as a small volume, high output, low speed rotation, and high torque. When the product of the present invention is mounted on a bicycle, the motor is stably powered. Since the weight of the bicycle does not become very heavy, the design goal of reducing the weight of the vehicle body can be achieved. Further, in the present invention, the drive gear is driven using the drive motor and the brake disc is rotated, and the structure is compared with the conventional electric bicycle using the motor or increasing the torque of the motor with a magnet. It is very simple and can reduce manufacturing costs.

本発明の構造は多くの変化があってもよく、例えばブレーキディスクとドリブンギアには平歯車に使用を限定せず、ヘリカルギア、あるいはウォームギアを採用してもよく、ドリブンギアがブレーキディスクを回転させることが出来ればよい。   The structure of the present invention may have many changes. For example, the brake disc and the driven gear are not limited to use as a spur gear, and a helical gear or a worm gear may be adopted, and the driven gear rotates the brake disc. It only has to be possible.

本発明の一実施例による自転車用の電動駆動システムを示す斜視図である。1 is a perspective view showing an electric drive system for a bicycle according to an embodiment of the present invention.

符号の説明Explanation of symbols

１０：電動駆動システム、２０：駆動用モーター、３０：ブレーキディスク、３２：ドリブンギア、４０：ドライブギア、５０：ブレーキキャリパー   10: Electric drive system, 20: Motor for drive, 30: Brake disc, 32: Driven gear, 40: Drive gear, 50: Brake caliper

Claims (3)

駆動用モーターと、
周縁にドリブンギアを有するブレーキディスクと、
前記駆動用モーターに接合され、前記ブレーキディスクの前記ドリブンギアに噛み合っているドライブギアと、
を備えることを特徴とする自転車用の電動駆動システム。 A drive motor;
A brake disc having a driven gear on the periphery;
A drive gear joined to the drive motor and meshed with the driven gear of the brake disc;
An electric drive system for a bicycle, comprising: 前記ブレーキディスクの前記ドリブンギアと前記ドライブギアのギア比は１２：１であることを特徴とする請求項１に記載の自転車用の電動駆動システム。   The electric drive system for a bicycle according to claim 1, wherein a gear ratio of the driven gear and the drive gear of the brake disc is 12: 1. 前記ブレーキディスクを挟むブレーキキャリパーを備えることを特徴とする請求項１に記載の自転車用の電動駆動システム。   The electric drive system for a bicycle according to claim 1, further comprising a brake caliper that sandwiches the brake disc.
JP2008239922A 2007-09-21 2008-09-18 Electric drive system for bicycle Pending JP2009073482A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
TW96215987U TWM333381U (en) 2007-09-21 2007-09-21 Electric driving system for bicycle

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JP2009073482A true JP2009073482A (en) 2009-04-09

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JP2008239922A Pending JP2009073482A (en) 2007-09-21 2008-09-18 Electric drive system for bicycle

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GB (1) GB2453039B (en)
TW (1) TWM333381U (en)

Cited By (1)

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Publication number Priority date Publication date Assignee Title
JP2019142322A (en) * 2018-02-19 2019-08-29 太郎 水谷 Front wheel drive device and motorcycle using the same

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DE202013001591U1 (en) * 2013-02-19 2013-03-19 Reinhold Fleiner Drive device for a bicycle with electric drive
DE102014202681A1 (en) 2014-02-14 2015-08-20 Zf Friedrichshafen Ag Electric vehicle drive for an electric bicycle or a motorcycle
US9359040B2 (en) * 2014-06-20 2016-06-07 Securience, LLC Electric bike retrofit for disc brakes bicycle
ES2597203B1 (en) * 2015-07-16 2017-10-24 Motordisc Electric Transmission, S.L. Transmission system for vehicles, and vehicle incorporating said transmission system
DE202016104737U1 (en) * 2016-07-22 2016-09-09 Aden Gmbh Drive and brake unit for a vehicle
IT201800007539A1 (en) * 2018-07-27 2020-01-27 Angelo Vincenzo Netti COMPLEMENTARY TRACTION
WO2020037088A1 (en) * 2018-08-14 2020-02-20 Neal Saiki Electric bicycle motor system
WO2021046141A1 (en) 2019-09-03 2021-03-11 Bimotal Inc. Vehicle power-assist drive systems

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US6557657B2 (en) * 2001-01-03 2003-05-06 Stephen R. Persson Add-on disc assembly for bicycle hub
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2019142322A (en) * 2018-02-19 2019-08-29 太郎 水谷 Front wheel drive device and motorcycle using the same

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TWM333381U (en) 2008-06-01
GB2453039B (en) 2012-01-04
GB2453039A (en) 2009-03-25
GB0817026D0 (en) 2008-10-22

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