JP2009166814A - Portable bicycle - Google Patents

Portable bicycle Download PDF

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JP2009166814A
JP2009166814A JP2008029660A JP2008029660A JP2009166814A JP 2009166814 A JP2009166814 A JP 2009166814A JP 2008029660 A JP2008029660 A JP 2008029660A JP 2008029660 A JP2008029660 A JP 2008029660A JP 2009166814 A JP2009166814 A JP 2009166814A
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wheel
rope
handle
stay
handle stay
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JP5163942B2 (en
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Toshinori Iwasaki
利宣 岩崎
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a foldaway bicycle which can be brought in public transportation simply. <P>SOLUTION: This bicycle is contracted by folding so as to wind a frame and a rear wheel around a front wheel in folding it by simplifying the frame and the rear wheel not using a conventional rear wheel driving method but using a new front wheel driving method to make a handlebar rotary shaft hollow and to rotate the front wheel by drawing up a rope for driving passed through the shaft by force of a pedal. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

本発明は、自転車の前輪駆動方式の改良とそれに伴う折り畳み時の軽量縮小化に関する  The present invention relates to an improvement in the front wheel drive system of a bicycle and the accompanying reduction in weight at the time of folding.

従来折り畳み自転車は多数市場に出ているが一般交通機関に簡単に持ち込める商品はあまり見られない、原因として折り畳み工程と折り畳んだあとの重量容積にある、駅などにある放置自転車や、駐輪自転車の盗難を防ぐためにも携帯性の高い自転車が望まれる。  Many folding bicycles have been put on the market in the past, but there are not many products that can be easily brought into general transportation. The reason is that the folding process and the weight volume after folding, the parked bicycles and parking bicycles in the station etc. In order to prevent theft of a bicycle, a portable bicycle is desired.

現在折り畳み自転車の多くは後輪駆動自転車を折り畳む方式が一般的である、それには完成度の高い各部品、例えば必要速度を出す為の大径の後車輪、かつ走行性を安定させる為の大径の前車輪、また前車輪と後車輪の中間にある駆動用ペダル支持用の補強されたフレーム、チエーンの駆動装置など形の定まっている後輪駆動自転車を折り畳むのは難点が多い、しかも複雑な工程で折り畳み縮小しても重量は軽くならず後輪駆動自転車の軽量化には限界がある。  Most of the current folding bicycles have a method of folding a rear-wheel drive bicycle, which includes highly complete parts such as a large-diameter rear wheel for achieving the required speed, and a large size for stabilizing the running performance. It is difficult and complicated to fold a rear wheel drive bicycle with a fixed shape, such as a front wheel of a diameter, a reinforced frame for supporting a drive pedal in the middle of the front wheel and the rear wheel, a chain drive device, etc. Even if it is folded and reduced in a complicated process, the weight is not reduced and the weight reduction of the rear wheel drive bicycle is limited.

ここで自転車の前輪駆動化を考えると軽量縮小化に近づく、前例の必要速度を出すための大径の後車輪が前車輪に兼用できフレームは後車輪連結の役割のみで後車輪も小径で簡素化でき駆動装置も前輪付近に集約できる。  Considering the front wheel drive of the bicycle here, it approaches the reduction in weight, the large-diameter rear wheel to give the required speed of the previous example can also be used as the front wheel, the frame is only the role of the rear wheel connection and the rear wheel is also small and simple And the drive unit can be concentrated near the front wheels.

前輪駆動自転車で市場に出ている製品は、ほとんど見あたらないが特許又は出願例が数件ある、例えば、前フォークに直接ペダルを取り付け駆動力を伝える方式がある、特開平09−272485、しかしこの方式は進行角度によっては両足をペダルに置きにくく駆動出来ない場合がある、この問題解決にはユニバーサルジョイントの駆動伝達方式もある、例えば特開平09−104385、しかしこの方式は部品点数が後輪駆動車より多く必要で折り畳み自転車として考えらえていない。  There are almost no products on the market for front-wheel drive bicycles, but there are several patents or application examples. For example, there is a method in which a pedal is directly attached to the front fork to transmit the driving force, Japanese Patent Laid-Open No. 09-272485, but this Depending on the angle of travel, there are cases where both feet cannot be placed on the pedal and cannot be driven. To solve this problem, there is a universal joint drive transmission system, for example, Japanese Patent Application Laid-Open No. 09-104385, but this system has rear wheel drive. It needs more than a car and is not considered a folding bike.

上記の問題点を解決する課題としてハンドル操作によりペダル位置が影響されない事と、折り畳み工程を簡素化し、一般交通機関に持ち込めるよう軽量縮小化する事が課題である。  Problems to solve the above problems are that the pedal position is not affected by the steering wheel operation, and that the folding process is simplified and the weight is reduced so that it can be brought into general transportation.

上記課題の、前輪駆動方式として、ハンドル操作時におけるハンドルステー回転中心線を駆動力の通路とし、その通路に駆動力を通す為に、ハンドルステー回転部のハンドルステー回転中心線を含みハンドル側より前記ハンドルステー回転部を貫通して前ホークステーに抜ける駆動力伝達用空間を作り、この空間を利用し駆動力を伝達する、このハンドルステー回転中心線に駆動用ロープを通しロープを引き上げる力により駆動を伝達する。  As the front wheel drive system of the above problem, the handle stay rotation center line at the time of handle operation is used as a drive force passage, and the handle stay rotation part includes the handle stay rotation center line from the handle side so that the drive force passes through the passage. By creating a drive force transmission space that passes through the handle stay rotating part and escapes to the front fork stay, the drive force is transmitted using this space, and the force that pulls the rope through the drive stay rotation center line Transmit drive.

この駆動用ロープにより駆動力がハンドル回転におけるねじれに影響されずに伝わり、前車輪タイヤ軸に平行でベルト車大を固着しロープ車をフリーホイールで連結し前車輪タイヤ上部の前ホークに回転可能にかつ前記ロープ車のロープ巻き込み部が前記ハンドルステー回転中心線に一致する位置で取り付けられた中間軸を回し、この中間軸の回転力が、前記前車輪軸ハブに固着されたベルト車小と前期ベルト車大を連結するベルトにより前車輪に伝達される、駆動力は、伝達用ロープを前期ロープ車に端部を固定し、1回以上巻き付け、前期ハンドルステー回転中心線を通り前記駆動力伝達用空間上部より出て固定滑車で下方向に曲げ、端部を動滑車に固着し前記動滑車で二本に振り分け、前期ハンドル支持部に支点を持つ一対のペダルに各々固定しそのペダルを踏み込むことにより中間軸に伝わる、ロープ車は駆動用ロープを巻き込む方向にスプリングが加勢され巻き込み巻き戻しを繰り返す、この駆動力は歩く動きの様に片足ごとの踏み込みを繰り返す動作によって発生する。  This driving rope transmits the driving force without being affected by the twisting of the steering wheel rotation, and the belt wheel size is fixed parallel to the front wheel tire axis, and the rope wheel can be connected with the freewheel to rotate to the front fork above the front wheel tire. And the rope entrainment portion of the rope wheel rotates an intermediate shaft attached at a position coinciding with the handle stay rotation center line, and the rotational force of the intermediate shaft is a belt wheel small fixed to the front wheel shaft hub. The driving force transmitted to the front wheels by the belt connecting the previous belt belt size is fixed at the end of the rope for transmission and wrapped once or more, and the driving force passes through the center line of the previous steering wheel stay. From the upper part of the transmission space, bend downward with a fixed pulley, fix the end to the moving pulley, distribute it into two with the moving pulley, and pair the pedals with the fulcrum on the handle support part in the previous period The rope car is transmitted to the intermediate shaft by stepping on the pedal and the rope is energized, and the spring is urged in the direction to wind the driving rope and repeats winding and rewinding. This driving force repeats stepping on each foot like walking Caused by.

請求項3は駆動力が走る足の動きに合わせた伝達方法で、ハンドルステー回転支持部に取り付けられた一対のペダルにより発生した駆動力は、二列の固定滑車で駆動力伝達用空間を通りフリーホイールの連結された二列のロープ車を個々回し中間軸よりベルト車大、ベルト、ベルト車小を経て前車輪に伝わる。According to a third aspect of the present invention, the driving force is generated by a pair of pedals attached to the handle stay rotation support portion through the space for driving force transmission in two rows of fixed pulleys. Two rows of rope wheels connected with freewheels are individually rotated and transmitted from the intermediate shaft to the front wheels through the belt car large, belt, and belt car small.

請求項4は折り畳み縮小をおこなう為の、弓状であって端部に後車輪ホークと後車輪を備え他端を前記ハンドルステー回転支持部に弓状面に平行に回動可能に取り付け、略中央部にサドルをスライド可能に取り付け、前記後車輪ホークを内側のみ回動可能に接合し、前記後車輪ホークから前記ハンドルステー回転支持部まで張られたフレーム支持用ロープにより形状を保持された軽量を考慮したフレームで、折り畳み時は前記フレームが回動し、前車輪を包み込む形状となり、前輪駆動折り畳み自転車の軽量縮小された携帯自転車が可能になる。A fourth aspect of the present invention is an arcuate shape for performing folding reduction, and has a rear wheel fork and a rear wheel at an end portion, and the other end is attached to the handle stay rotation support portion so as to be rotatable in parallel with the arcuate surface. A lightweight saddle that is slidably attached to the center, the rear wheel hawk is pivotably joined only inside, and the shape is held by a frame support rope stretched from the rear wheel hawk to the handle stay rotation support part. The frame rotates in the folding state and wraps around the front wheels, so that the front-wheel drive folding bicycle can be reduced in weight and portable.

この発明によりハンドルとペダルの独立した操作性と、軽量で折り畳み縮小可能な前輪駆動自転車を提供できる、また駆動伝達手段がベルトとロープであって金属を使用しないことにより僅かであるが軽量化され金属チエインに必要な潤滑油が不要であり折り畳み時又は携帯時に潤滑油による汚れがない、また携帯性が優れているので交通手段として一般交通機関と併用でき放置や盗難の解決に効果を発揮するものである。  According to the present invention, an independent operability of the handle and the pedal, a lightweight and foldable front wheel drive bicycle can be provided, and the drive transmission means is a belt and a rope, and the weight is slightly reduced by not using metal. Lubricant required for metal chain is unnecessary, and there is no dirt due to lubricant when folded or carried, and because it is highly portable, it can be used together with general transportation as a means of transportation and is effective in solving neglect and theft Is.

本発明の実施の形態を図1〜図4に基づいて説明する。  An embodiment of the present invention will be described with reference to FIGS.

1はフレームでハンドルステー回転支持部10上部にピン結合され、その支持にロープ4が二列ハンドルステー回転支持部10下部と、後ホークの間に止められている、2は後車輪、5は後ホーク7が内側のみに曲がるような接合部である、サドル3は前後に移動可能でペダル25とサドルの間隔を調整する。  Reference numeral 1 denotes a frame, which is pin-coupled to the upper portion of the handle stay rotation support portion 10, and the rope 4 is fixed between the lower portion of the double row handle stay rotation support portion 10 and the rear fork. The saddle 3, which is a joint where the rear fork 7 bends only inward, is movable back and forth, and adjusts the distance between the pedal 25 and the saddle.

ハンドルステー回転中心線30はハンドル回転に対して動かない仮想線であるこの線が通るようハンドルステー回転部11は円筒空洞の駆動力伝達用空間15を備えハンドル12と前ホーク13が取り付けてありハンドルを回すと前ホークが動き前車輪20が進行方向を向く、外部はベアリングを介してハンドルステー回転支持部10に取り付けてある。  The handle stay rotating center 11 is provided with a drive space 15 for transmitting a driving force of a cylindrical cavity, and the handle 12 and the front fork 13 are attached so that the handle stay rotating center line 30 passes through a virtual line that does not move with respect to the handle rotation. When the handle is turned, the front fork moves and the front wheel 20 faces in the traveling direction, and the outside is attached to the handle stay rotation support portion 10 via a bearing.

請求項2のロープ車による駆動方式は図3表記で、ロープ車23と固定滑車26のピッチ円をハンドル回転中心線30に合わせると駆動用ロープ14はハンドル回転時に引き上と戻しを行っても、ロープがねじれるのみでロープ車や固定滑車から外れない。  The drive system by the rope wheel of claim 2 is shown in FIG. 3, and if the pitch circle of the rope wheel 23 and the fixed pulley 26 is matched with the handle rotation center line 30, the drive rope 14 can be pulled up and returned when the handle is rotated. The rope can only be twisted and cannot be removed from the rope or fixed pulley.

駆動用ロープ14は片端をロープ車に固着し約一回以上巻き込みハンドルステー回転中心線30に沿い固定滑車で折り曲げ動滑車28により二分し端部を各々ペダル25に固着する。  The drive rope 14 is fixed to the rope wheel at one end, is wound about once or more times, is bent by a fixed pulley along the handle stay rotation center line 30, and is divided into two by a moving pulley 28, and the ends are fixed to the pedals 25 respectively.

ペダル25は端部をハンドルステー回転支持部10にピン結合しアームにて連結され最下部で停止出来るようストッパーを付け両足で最下部まで踏み込み歩くように片足ごと上げ下げの往復動作を行う。  The pedal 25 is reciprocally moved up and down with one foot so that the end of the pedal 25 is pin-coupled to the handle stay rotation support portion 10 and connected with an arm, and a stopper is attached so that the foot can be stopped at the bottom.

また請求項3に記載した様に、ロープ車を二列にし両足で個々に駆動する方法は図4表記で、ロープ車のピッチ円とハンドルステー回転中心線30が外れるのでロープ車の溝を深くする。  Further, as described in claim 3, the method of driving the rope wheels in two rows and individually driving with both feet is shown in FIG. 4, and the pitch circle of the rope wheels and the handle stay rotation center line 30 are separated, so that the grooves of the rope wheels are deepened. To do.

中間軸との間にフリーホイールを連結したロープ車23は前ホークに取り付けられたねじりバネにより絶えずロープを巻き込んでいるのでペダルの往復により中間軸27が回転しベルト車大を駆動し、その駆動がベルトに伝わり、ベルト車小21に伝えられ前車輪20を駆動する。  Since the rope wheel 23 having a free wheel connected to the intermediate shaft continuously entrains the rope by a torsion spring attached to the front fork, the intermediate shaft 27 is rotated by the reciprocation of the pedal to drive the belt wheel size, and the drive Is transmitted to the belt and is transmitted to the small belt wheel 21 to drive the front wheel 20.

ベルト車大とベルト車小の直径の比で、ペダル一回の踏み込みによる前車輪の回転を調整する。  The ratio of the diameter of the belt car large and the belt car small adjusts the rotation of the front wheel by a single depression of the pedal.

ロープは化学繊維、ロープ車やベルト車はプラスチック製で軽量化し、ベルトとベルト車には歯付きベルトを使用し、スリップの無いようにする。  The ropes are made of chemical fiber, and the ropes and belts are made of plastic to reduce the weight. Toothed belts are used for the belts and belts to prevent slipping.

折り畳みは、フレーム1とハンドルステー回転支持部10を折り曲げ、フレームが前輪の外周を包み込む様な形状で折り畳み、接合部5をさらに内側に折り込むと前輪をカバーできタイヤの汚れが他の物に付きにくい、またフレーム内側と後輪にタイヤカバー6を付けるとなお良い、  Folding frame 1 and handle stay rotation support 10 is folded so that the frame wraps around the outer periphery of the front wheel, and when the joint 5 is further folded inward, the front wheel can be covered and dirt on the tire is attached to other things. It is difficult, and it is even better to attach the tire cover 6 to the inside and rear wheels

長距離携帯の場合はハンドルを閉じて前下に折り曲げペダルを内側に折り曲げる、この形状であれば一般交通機関を利用する旅行にも携帯可能である。  In the case of long-distance carrying, the handle is closed and the pedal is folded inward and bent inward, so that this shape can be carried for travel using general transportation.

本発明の実施形態を示す携帯自転車の側面図で、部分断面はA視、想像線は折り畳み時の形状BRIEF DESCRIPTION OF THE DRAWINGS In the side view of the portable bicycle which shows embodiment of this invention, a partial cross section is A view and an imaginary line is the shape at the time of folding 同平面図Plan view 同請求項2の駆動方法図Driving method diagram of claim 2 同請求項3の駆動方法図Driving method diagram of claim 3

記号の説明Explanation of symbols

1 フレーム
2 後車輪
3 サドル
4 フレーム支持用ロープ
5 接合部
6 タイヤカバー
7 後ホーク
10 ハンドルステー回転支持部
11 ハンドルステー回転部
12 ハンドル
13 前ホーク
14 駆動用ロープ
15 駆動力伝達用空間
20 前車輪
21 ベルト車小
22 ベルト車大
23 ロープ車
24 ベルト
25 ペダル
26 固定滑車
27 中間軸
28 動滑車
30 ハンドルステー回転中心線
DESCRIPTION OF SYMBOLS 1 Frame 2 Rear wheel 3 Saddle 4 Frame support rope 5 Joint part 6 Tire cover 7 Rear fork 10 Handle stay rotation support part 11 Handle stay rotation part 12 Handle 13 Front fork 14 Drive rope 15 Driving force transmission space 20 Front wheel 21 Belt car small 22 Belt car large 23 Rope car 24 Belt 25 Pedal 26 Fixed pulley 27 Intermediate shaft 28 Moving pulley 30 Handle stay rotation center line

Claims (4)

自転車のハンドルステーのハンドルステー回転部とハンドルステー回転支持部と前ホークステーと前ホークと前車輪と、において前記ハンドルステー回転部のハンドルステー回転中心線を含みハンドル側より前記ハンドルステー回転部を貫通して前ホークステーに抜ける駆動力伝達用空間を設ける事と、前記ハンドルステー回転支持部側に具備された駆動力として往復運動を発生させるペダルと、その往復運動を前記駆動力伝達空間の前記ハンドルステー回転中心線を通り前記前ホークステムを抜けるまで伝達する動力伝達手段と、前記前ホークに具備された往復運動を回転運動に変換する機構と、前記回転運動を前記前車輪に伝達する手段と、からなる前輪駆動の特徴を持つ携帯用自転車。  A handle stay rotating portion of a bicycle handle stay, a handle stay rotating support portion, a front fork stay, a front fork and a front wheel including the handle stay rotating center line of the handle stay rotating portion including the handle stay rotating portion from the handle side. A driving force transmission space penetrating through the front fork stay, a pedal for generating a reciprocating motion as a driving force provided on the handle stay rotating support side, and the reciprocating motion of the driving force transmitting space Power transmission means for transmitting until passing through the handle stay rotation center line through the front fork stem, a mechanism for converting reciprocating motion provided in the front fork into rotational motion, and transmitting the rotational motion to the front wheels And a portable bicycle having front-wheel drive characteristics. 前車輪タイヤ軸に平行でベルト車大を固着しロープ車をフリーホイールで連結し前記前車輪タイヤ上部の前ホークに回転可能にかつ前記ロープ車のロープ巻き込み部が前記ハンドルステー回転中心線に一致する位置で取り付けられた中間軸と、前記ロープ車の巻き込み方向に加勢されたスプリングと、前記前車輪軸ハブに固着されたベルト車小と前期ベルト車大を連結するベルトと、前期ロープ車に端部を固定し1回以上巻き付け、前期ハンドルステー回転中心線を通り前期駆動力伝達用空間上部より出て固定滑車で下方向に曲げ、端部を動滑車軸に固着し前記動滑車で二本に振り分け、前期ハンドルステー支持部に支点を持つ一対のペダルに各々固定する駆動用ロープとを、特徴とする請求項1における携帯用自転車。  Parallel to the front wheel tire axis, the belt wheel size is fixed, the rope wheel is connected with the free wheel, the front wheel tire can be rotated to the front fork, and the rope winding part of the rope wheel coincides with the handle stay rotation center line An intermediate shaft attached at a position where the rope wheel is entrained, a spring urged in the winding direction of the rope wheel, a belt connecting the small belt wheel fixed to the front wheel shaft hub and the previous belt wheel size, and the first rope vehicle Fix the end and wind it at least once, pass through the center line of the previous stay stay rotation, exit from the upper part of the previous drive force transmission space, bend downward with a fixed pulley, and fix the end to the moving pulley shaft and fix it with the moving pulley. 2. The portable bicycle according to claim 1, further comprising: a drive rope that is distributed to a book and fixed to a pair of pedals each having a fulcrum at a handle stay support portion in the previous period. 前記ロープ車と、前記フリーホイールと、前記スプリングと、前記駆動用ロープと、前記固定滑車とを、前記ハンドルステー回転中心線を中心に、二列備えた事を特徴とする請求項1,請求項2における携帯用自転車。  2. The rope wheel, the free wheel, the spring, the driving rope, and the fixed pulley are provided in two rows around the handle stay rotation center line. The portable bicycle according to Item 2. 弓状であって、端部に後車輪ホークと後車輪を備え、他端を前記ハンドルステー回転支持部に弓状面に平行に回動可能に取り付け、略中央部にサドルをスライド可能に取り付け、前記後車輪ホークを内側のみ回動可能に接合部し、前記後車輪ホークから前記ハンドルステー回転支持部まで張られたロープにより形状を保持されたフレームと、折り畳み時は前記フレームが前記前車輪を包み込む形状に回動する事を特徴とする請求項1、請求項2、請求項3における携帯用自転車。  It is arcuate and has a rear wheel fork and a rear wheel at the end, and the other end is attached to the handle stay rotation support part so as to be able to rotate parallel to the arcuate surface, and a saddle is attached to the substantially central part so as to be slidable. A frame in which the rear wheel fork is rotatably joined only inside, and a shape is held by a rope stretched from the rear wheel fork to the handle stay rotation support portion, and when folded, the frame is the front wheel The portable bicycle according to any one of claims 1, 2, and 3, wherein the portable bicycle is rotated into a shape that wraps the bicycle.
JP2008029660A 2008-01-10 2008-01-10 Portable bicycle Active JP5163942B2 (en)

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JPH0366887A (en) * 1989-08-04 1991-03-22 Iida Tsusho Kk Facial decorating method for building shutter surface, wall surface, etc.
CN102514665A (en) * 2011-11-21 2012-06-27 张建民 Lightweight portable bicycle with small wheel diameters and capable of being folded vertically
JP2014151737A (en) * 2013-02-07 2014-08-25 Kenichi Hotta Cycle
CN107458523A (en) * 2016-06-06 2017-12-12 岑海 The wheel Liang Zhou parallel folds mechanism of bicycle
KR20190140395A (en) * 2018-06-11 2019-12-19 이종호 Three-wheeled boarding apparatus capable of tilting
WO2019240403A1 (en) * 2018-06-11 2019-12-19 이종호 Three-wheeled riding device
CN114715324A (en) * 2022-03-31 2022-07-08 鲍国明 Double-rope reciprocating wheel disc transmission device for bicycle

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Publication number Priority date Publication date Assignee Title
JPS58133986A (en) * 1982-01-30 1983-08-09 末次 靖幸 Revolution transmission motion of wheel
JPH0516574U (en) * 1991-08-15 1993-03-02 晴雄 北村 Bicycle pedal crank device
JPH0699871A (en) * 1992-09-17 1994-04-12 Fuji Heavy Ind Ltd Portable bicycle
JPH06135368A (en) * 1992-10-28 1994-05-17 Glory Kiki Kk Manual traveling vehicle and its wheel driving mechanism
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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0366887A (en) * 1989-08-04 1991-03-22 Iida Tsusho Kk Facial decorating method for building shutter surface, wall surface, etc.
CN102514665A (en) * 2011-11-21 2012-06-27 张建民 Lightweight portable bicycle with small wheel diameters and capable of being folded vertically
CN102514665B (en) * 2011-11-21 2013-04-17 张建民 Lightweight portable bicycle with small wheel diameters and capable of being folded vertically
JP2014151737A (en) * 2013-02-07 2014-08-25 Kenichi Hotta Cycle
CN107458523A (en) * 2016-06-06 2017-12-12 岑海 The wheel Liang Zhou parallel folds mechanism of bicycle
KR20190140395A (en) * 2018-06-11 2019-12-19 이종호 Three-wheeled boarding apparatus capable of tilting
WO2019240403A1 (en) * 2018-06-11 2019-12-19 이종호 Three-wheeled riding device
KR102304459B1 (en) 2018-06-11 2021-10-13 이종호 Three-wheeled boarding apparatus capable of tilting
CN114715324A (en) * 2022-03-31 2022-07-08 鲍国明 Double-rope reciprocating wheel disc transmission device for bicycle

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