JP2016030590A - Elliptical gear and crank of bicycle - Google Patents

Elliptical gear and crank of bicycle Download PDF

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JP2016030590A
JP2016030590A JP2014180636A JP2014180636A JP2016030590A JP 2016030590 A JP2016030590 A JP 2016030590A JP 2014180636 A JP2014180636 A JP 2014180636A JP 2014180636 A JP2014180636 A JP 2014180636A JP 2016030590 A JP2016030590 A JP 2016030590A
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crank
gear
diameter
pedal
elliptical
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JP5827389B1 (en
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敏 結城
Satoshi Yuki
敏 結城
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Abstract

PROBLEM TO BE SOLVED: To provide a mechanism to reduce fatigue of feet, muscle power of which is required to rotate a pedal crank, in conventional circular gear and crank, continuously with no variation in intensity during constant rotation to make the feet tired due to no variation in diameter.SOLUTION: A set of circular gear and crank may cause variation in muscle power required to rotate a foot pedal and a crank 3. Accordingly, a set of elliptical gear and crank 2 is used instead of the conventional set of circular gear and crank to reduce a diameter of the gear to 1/3 twice in one rotation so that the foot muscle power required to rotate the gear will be also reduced to 1/3 twice in one rotation.SELECTED DRAWING: Figure 2

Description

本発明は、従来の自転車の円形ギア、クランク１を楕円形に変形して、脚の筋力を軽減する装置に関するものである。The present invention relates to an apparatus for reducing leg muscle strength by deforming a conventional bicycle circular gear, crank 1, into an elliptical shape.

従来の自転車の円形ギア、クランク１と後方Ｒハブ、ギア６の段差（ギア数）を利用した、各段変速機付自転車は、現存しているが、円形ギア、クランク１を楕円形に変える技術はなかった。Bicycles with conventional gearboxes that use a conventional bicycle circular gear, crank 1 and rear R hub, and gear 6 steps (number of gears) currently exist, but the circular gear crank 1 is changed to an elliptical shape. There was no technology.

従来の自転車の円形ギア、クランク１はペダル、クランク３を何回漕ぎ回しても、直径の変化はなく、均等な筋力が要求され、脚の筋力の負担は変らず、疲れる。No matter how many times a conventional bicycle circular gear, crank 1 is pedaled, and crank 3 is turned, there is no change in diameter, and even muscle strength is required, the burden of leg muscle strength is not changed, and tiredness.

従来の円形ギア、クランク１を、楕円形ギア、クランク２に変形してペダルクランク３回転による楕円形ギア、クランク２の直径が、長、短相互の繰り返し（一回転毎に２回ずつ）の変化を利用した。例へば楕円形ギア、クランク２が回転により水平の位置に来た場合、直径は短くなり、楕円形ギア、クランク２が垂直の位置に来た場合は、直径は長くなる（図面［図４］［図５］［図６］提示）。
以上の様な楕円形ギア、クランク２の回転により直径変化の特徴を解決の手段とした。The conventional circular gear, crank 1 is transformed into an elliptical gear, crank 2, and the elliptical gear is produced by rotating the pedal crank 3 times. The diameter of the crank 2 is long and short (repeated twice per rotation). Utilized change. For example, when the elliptical gear, crank 2 comes to a horizontal position by rotation, the diameter becomes shorter, and when the elliptical gear, crank 2 comes to a vertical position, the diameter becomes longer (drawing [FIG. 4] [ [Fig. 5] [Fig. 6]).
The feature of the diameter change by the rotation of the elliptical gear and the crank 2 as described above was used as a solution.

従来の自転車円形ギア、クランク１ではペダル、クランク３を何回漕ぎ回しても直径の変化はなく、脚の負担は変らず疲れる。本発明は円形ギア、クランク１を楕円形に変える事によりペダル、クランク３回転により生ずる楕円形ギア、クランク２の位置（垂直、水平）の交互直径（長、短）の変化により、脚の筋力は一回転毎に二回ずつ強弱リズミカルに軽減される。
又従来のあらゆる自転車（例へばスポーツ車、トライアル、ロード、タウン三輪車、電動アシスト車、各種の各段変速車、等にも併用可能。No matter how many times the conventional bicycle circular gear, crank 1 pedal, and crank 3 are turned, there is no change in diameter, and the load on the legs remains unchanged and the tires are tired. The present invention is based on a circular gear, a pedal by changing the crank 1 to an elliptical shape, an elliptical gear generated by the rotation of the crank 3, and a change in the alternate diameter (long and short) of the position of the crank 2 (vertical and horizontal). Is rhythmically reduced twice or twice per rotation.
It can also be used with all conventional bicycles (eg sports cars, trials, roads, town tricycles, electric assist vehicles, various speed-change vehicles, etc.).

本発明の楕円形ギア、クランク２は円形ギア、クランク１の直径の１／３細めの楕円形ギア、クランク２（図面［図２］）にするのと、それに取付固定するペダル、クランク３はその角度（３６０°内は自由選定可能）こゝでは楕円形ギア、クランク２の垂直時左側に４５°傾斜角度（図面［図３］）にするのが最良の形態。The oval gear of the present invention, the crank 2 is a circular gear, the oval gear is 1/3 narrower than the diameter of the crank 1, and the crank 2 (drawing [Fig. 2]) is attached to the pedal, and the crank 3 is The angle is freely selectable within 360 °. In this case, it is best to make an elliptical gear, 45 ° inclined angle (drawing [Fig. 3]) on the left side when the crank 2 is vertical.

各ギア、クランクの側面概略図
従来の円形ギア、クランク１とペダル、クランク３チェーン５ 従来の円形ギア、クランク１の直径を１／３に圧縮した楕円形ギア、クランク２とペダル、クランク３とガイド、ギア４チェーン５ 楕円形ギア、クランク２のペダル、クランク３の取付固定位置（こゝでは４５°）とガイド、ギア４チェーン５ 楕円形ギア、クランク２の垂直時直径７（最長）とガイド、ギア４チェーン５ 楕円形ギア、クランク２の６０°傾斜時直径７（中間）とガイドギア４チェーン５ 楕円形ギア、クランク２の水平時直径７（最短）とガイドギア４チェーン５Ｒハブギア６。尚［図４］［図５］［図６］はペダル、クランク３を抜き図にしました。 Side view of each gear and crank
Conventional circular gear, crank 1 and pedal, crank 3 chain 5 Conventional circular gear, elliptical gear with 1/3 reduced diameter of crank 1, crank 2 and pedal, crank 3 and guide, gear 4 chain 5 Oval gear, crank 2 pedal, crank 3 mounting and fixing position (45 ° in this case) and guide, gear 4 chain 5 Oval gear, crank 2 vertical diameter 7 (longest) and guide, gear 4 chain 5 Oval gear, crank 2 diameter 7 (middle) at 60 ° tilt and guide gear 4 chain 5 Oval gear, crank 2 horizontal diameter 7 (shortest) and guide gear 4 chain 5R hub gear 6. In addition, in [Fig. 4], [Fig. 5] and [Fig. 6], the pedal and crank 3 are removed.

１ 従来の円形ギア、クランク ２ 楕円形ギア、クランク
３ ペダル、クランク ４ ガイド、ギア ５ チェーン ６ Ｒ、ハブ、ギア
７ 直径1 conventional circular gear, crank 2 oval gear, crank 3 pedal, crank 4 guide, gear 5 chain 6 R, hub, gear 7 Diameter

Claims (1)

従来の自転の円形ギア、クランク１を、楕円形に変形してそれに付随した角度任意（３６０°内は自由選定可能）の固定ペダル、クランク３とチェーン５弛み防止用ガイド、ギア４付楕円形ギア、クランク２。Conventional rotating circular gear, crank 1 is deformed into an elliptical shape, and a fixed pedal of any angle (within 360 ° can be freely selected), crank 3 and chain 5 slack prevention guide, elliptical shape with gear 4 Gear, crank 2.
JP2014180636A 2014-07-29 2014-07-29 Bicycle oval gear, crank Expired - Fee Related JP5827389B1 (en)

Priority Applications (1)

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JP2014180636A JP5827389B1 (en) 2014-07-29 2014-07-29 Bicycle oval gear, crank

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JP2014180636A JP5827389B1 (en) 2014-07-29 2014-07-29 Bicycle oval gear, crank

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JP5827389B1 JP5827389B1 (en) 2015-12-02
JP2016030590A true JP2016030590A (en) 2016-03-07

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Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08142969A (en) * 1994-11-18 1996-06-04 Hiroshi Hikata Oval crank gear
US9169903B2 (en) * 2012-12-18 2015-10-27 Tai-Her Yang Transmission wheel system series with periodically varied speed ratio and having reciprocally displacing auxiliary pulley for storing/releasing kinetic energy

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