JPH02310188A - Crank-driven bicycle - Google Patents

Crank-driven bicycle

Info

Publication number
JPH02310188A
JPH02310188A JP12946089A JP12946089A JPH02310188A JP H02310188 A JPH02310188 A JP H02310188A JP 12946089 A JP12946089 A JP 12946089A JP 12946089 A JP12946089 A JP 12946089A JP H02310188 A JPH02310188 A JP H02310188A
Authority
JP
Japan
Prior art keywords
crank
rear wheel
gear
pedal
rotated
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.)
Pending
Application number
JP12946089A
Other languages
Japanese (ja)
Inventor
Naomasa Nomura
野村　直正
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to JP12946089A priority Critical patent/JPH02310188A/en
Publication of JPH02310188A publication Critical patent/JPH02310188A/en
Pending legal-status Critical Current

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  • Transmission Devices (AREA)

Abstract

PURPOSE:To surely transmit power to a rear wheel by transmitting the depressing force of a pedal to a crank gear via a crank bar, and engaging a rear wheel gear provided on a rear wheel shaft with the crank gear. CONSTITUTION:One end of a crank bar 2 is pivotally fitted to the middle of a crank rotated around a pedal shaft 6 by the depression of a pedal 5, and the other end is pivotally fitted to part of the outer periphery of a crank gear 3 engaged with a rear wheel gear 4 provided on a rear wheel shaft. The crank gear 3 and the rear wheel gear 4 engaged with it are rotated by the depressing force of the pedal 5 via the crank bar 2, and a rear wheel is rotated.

Description

【発明の詳細な説明】 （産業上の利用分野） 自転車産業 （従来の技術） チェーン又はベルト駆動であった （発明が解決しようとする課題） より的確に速く自転車を走らせる （課題を解決するための手段） 自転車の前ギアをなくしペダルのアームを後部にクラン
クを設けて連結し後輪のギアを駆動するににクランクギ
アを通してペダルの動力を伝達する様にする。尚この際
ペダル部にフットカバーを設ける（実施例） 簡単な図面で説明致します （発明の効果・作用） ・動力が正確に伝達する様になる ・チェーン、ベルトの様に動力にロスがなくなる・自転
車の技術及び自転車産業が発展する・自転車のコストダ
ウン[Detailed description of the invention] (Industrial field of application) Bicycle industry (prior art) Chain or belt drive (problem to be solved by the invention) Making a bicycle run more accurately and faster (problem to be solved) (Means for achieving this) Eliminate the front gear of the bicycle, connect the pedal arm with a crank at the rear, and transmit the pedal power through the crank gear to drive the rear wheel gear. At this time, a foot cover is provided on the pedal part (example).I will explain with a simple drawing (effects and functions of the invention) - Power will be transmitted accurately - There will be no power loss like with chains and belts.・Development of bicycle technology and bicycle industry ・Cost reduction of bicycles

【図面の簡単な説明】[Brief explanation of the drawing]

第１図はクランク駆動にした自転車の正面図である ペダルに伝わった動力はクランクによって逆方向の回転
でクランクギアに伝達されクランクギアとかみ合ってい
る後輪ギアに正回転で動力が伝わり後輪が駆動する。 第２図はペダルのクランク部を詳細に表わした図である ペダル軸をペダルの間にクランク軸を１つ設けてペダル
に伝わった動力をクランクを通して後輪に伝える。この
際足の保護を目的としてフットカバーを設けるFigure 1 is a front view of a crank-driven bicycle.The power transmitted to the pedals is rotated in the opposite direction by the crank and transmitted to the crank gear, which is then transmitted to the rear wheel gear meshed with the crank gear in the forward direction, and the power is transmitted to the rear wheel. is driven. FIG. 2 is a detailed view of the crank part of the pedal.One crankshaft is provided between the pedals, and the power transmitted to the pedals is transmitted to the rear wheel through the crank. At this time, provide foot covers to protect the feet.

Claims (1)

【特許請求の範囲】[Claims] 自転車の駆動をクランク伝達にし前ギアをなくし後輪軸
のギアにクランクギアを取り付けて駆動させる。尚この
際ペダル部にフットカバーを設けるThe bicycle is driven by crank transmission, eliminating the front gear and attaching the crank gear to the gear on the rear axle. In this case, provide a foot cover on the pedal part.
JP12946089A 1989-05-23 1989-05-23 Crank-driven bicycle Pending JPH02310188A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12946089A JPH02310188A (en) 1989-05-23 1989-05-23 Crank-driven bicycle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12946089A JPH02310188A (en) 1989-05-23 1989-05-23 Crank-driven bicycle

Publications (1)

Publication Number Publication Date
JPH02310188A true JPH02310188A (en) 1990-12-25

Family

ID=15010042

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12946089A Pending JPH02310188A (en) 1989-05-23 1989-05-23 Crank-driven bicycle

Country Status (1)

Country Link
JP (1) JPH02310188A (en)

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