WO1998000331A1 - Bicycle - Google Patents

Bicycle Download PDF

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Publication number
WO1998000331A1
WO1998000331A1 PCT/JP1997/002281 JP9702281W WO9800331A1 WO 1998000331 A1 WO1998000331 A1 WO 1998000331A1 JP 9702281 W JP9702281 W JP 9702281W WO 9800331 A1 WO9800331 A1 WO 9800331A1
Authority
WO
WIPO (PCT)
Prior art keywords
wheel
bicycle
rear wheel
chain
pedal
Prior art date
Application number
PCT/JP1997/002281
Other languages
French (fr)
Japanese (ja)
Inventor
Eiji Kawakami
Original Assignee
Eiji Kawakami
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 Eiji Kawakami filed Critical Eiji Kawakami
Priority to AU33578/97A priority Critical patent/AU3357897A/en
Publication of WO1998000331A1 publication Critical patent/WO1998000331A1/en

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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
    • B62M1/00—Rider propulsion of wheeled vehicles
    • B62M1/36—Rider propulsion of wheeled vehicles with rotary cranks, e.g. with pedal cranks
    • B62M1/38—Rider propulsion of wheeled vehicles with rotary cranks, e.g. with pedal cranks for directly driving the wheel axle
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62K—CYCLES; CYCLE FRAMES; CYCLE STEERING DEVICES; RIDER-OPERATED TERMINAL CONTROLS SPECIALLY ADAPTED FOR CYCLES; CYCLE AXLE SUSPENSIONS; CYCLE SIDE-CARS, FORECARS, OR THE LIKE
    • B62K1/00—Unicycles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62K—CYCLES; CYCLE FRAMES; CYCLE STEERING DEVICES; RIDER-OPERATED TERMINAL CONTROLS SPECIALLY ADAPTED FOR CYCLES; CYCLE AXLE SUSPENSIONS; CYCLE SIDE-CARS, FORECARS, OR THE LIKE
    • B62K3/00—Bicycles

Definitions

  • the present invention relates to a two-wheeled bicycle
  • a bicycle generally has a front wheel 1 at the front of a frame 25 and a rear wheel 2 at the rear, and a handle 13 for steering the front wheel 1 is provided at the front end of the frame 25, and a front wheel 1 is provided.
  • a saddle 4 is provided at the upper rear end of the frame 25 between the front wheel 2 and the rear wheel 2
  • a chain wheel 26 is attached to the lower end of the frame 25 between the front wheel 1 and the rear wheel 2 and a chain wheel 2 is provided.
  • 6 is assembled by attaching a crank 22 with a pedal 6 to the rear wheel 2 and suspending a chain 28 between a rear wheel 27 and a chain wheel 26 provided on the shaft of the rear wheel 2. ing.
  • the bicycle is formed by assembling a large number of parts, so that the weight becomes heavy, and the chain 28 is suspended between the chain wheel 26 and the rear chain wheel 27 of the rear wheel 2, so that Power is transmitted to the rear wheel 2 by the chain 28 by rotating the chain wheel 26 by turning the chain wheel 6, and the chain wheel is rotated.
  • the chain wheel 26 and the chain 2 are connected between the front wheel 1 and the rear wheel 2. Because of the necessity of providing eight, the distance between the front wheel 1 and the rear wheel 2 (wheel base) becomes longer, and the entire bicycle becomes larger.
  • the conventional bicycle is formed in a heavy and large form, and there is a problem that it is difficult to store the bicycle in a small house such as an apartment house.
  • the present invention has been made in view of the above points, and an object of the present invention is to provide a bicycle that can be formed to be lightweight and small, and that can be used to practice safe riding on a unicycle. It is.
  • the bicycle according to the present invention is a two-wheeled bicycle having a front wheel 1 and a rear wheel 2, wherein a rear wheel 2 is pivotally supported at a lower end of a seat column 3 having an upper end provided with a saddle 4, and a shaft 5 of the rear wheel 2 is provided. It is characterized in that the pedal 6 is attached.
  • This allows the rear wheel to be rotated directly by pedaling, eliminating the need for a power transmission mechanism such as a chain wheel or chain between the front and rear wheels as in a conventional bicycle. It is possible to reduce the size of the bicycle and make it compact and lightweight, and it is easy to store it even in a narrow house such as an apartment house, so it is difficult to store bicycles. Such a thing disappears.
  • the structure of the rear part of the bicycle is similar to that of a unicycle, and it is possible to ride with the same kind of feeling as riding a unicycle, and there is a front wheel in front of the rear wheel, so the unicycle is As shown in the figure, there is little danger of falling down in the front-rear direction, and it is possible to practice riding a unicycle safely.
  • the saddle at the upper end of the seat pillar is located slightly forward of the rear wheel axis, and the center of gravity when sitting on the saddle is slightly ahead of the rear wheel axis. Is to be located closer to the front, The bicycle can be driven stably without falling over.
  • FIG. 1 is a front view showing a bicycle according to one embodiment of the present invention.
  • FIG. 2 is a perspective view showing an example of a conventional bicycle.
  • a general bicycle has an inverted triangular frame as a skeleton, but in the bicycle of the present invention, the skeleton is formed by only one rod 10 made of a metal pipe or the like.
  • the head pipe 11 is attached to the front end by welding or the like, and the column 3 is attached to the rear end of the rod 10.
  • a handle stem 12 is attached to the head pipe 11 at the front end so as to be freely rotated in the horizontal direction.
  • a handlebar 13 having grips at both ends is attached to an upper end of the handle stem 12, and a forked front fork 14 is attached to a lower end of the handle stem 12.
  • the front wheel 1 has a shaft 15 pivotally attached to a lower end of the front fork 14.
  • Reference numeral 16 denotes a brake lever attached to the handlebar 13, which is connected to a brake device 17 provided on the front wheel 1 via a wire 18, and the brake device 17 is pulled by pulling the brake lever 16. When activated, the front wheel 1 can be controlled.
  • the seat post 3 has a rear pipe 19 attached to the rear end of the rod 10 by welding, a forked rear fork 20 attached to the lower end of the rear pipe 19, and a seat with a lower part inserted in the rear pipe 19.
  • the seat post 21 has a saddle 4 attached to an upper end thereof. The seat post 21 is inserted into the rear pipe 19 so that the height can be adjusted freely.
  • the seat post 21 is fixed to the rear pipe 19 with bolts or the like.
  • the rear wheel 2 is formed with a larger diameter than the front wheel 1, and its shaft 5 is pivotally supported at the lower end of the rear fork 20.
  • the rear wheel 2 is thus pivotally attached to the lower end of the column 3, but the column 3 is slightly inclined forward so that the saddle 4 at the upper end of the column 3 is attached to the rear wheel 2. It is located slightly ahead of axis 5 of the camera.
  • a pedal 6 is provided at each end of the shaft 5 of the rear wheel 2.
  • the pedal 6 is attached to the tip of the crank 22, and the pedal 6 is attached to the shaft 5 by connecting and fixing the base of the crank 22 to the shaft 5.
  • the two-wheeled bicycle according to the present invention can be formed.
  • To drive this bicycle sit on the saddle 4, hold the grip of the handle 13 with both hands, and hold the pedal 6.
  • the rear wheels 2 By running the bicycle with the feet, the rear wheels 2 can be rotated to run the bicycle, and the steering direction of the front wheels 1 can be operated by operating the handles 13 to change the traveling direction.
  • the diameter of the rear wheel 2 is formed larger than that of the front wheel 1 as described above, when the pedal 6 is rowed and the rear wheel 2 is directly rotated to travel, a high traveling speed can be obtained. It is.
  • the saddle 4 when riding on the bicycle, the saddle 4 is slightly inclined forward so that the saddle 4 is positioned slightly forward of the shaft 5 of the rear wheel 2.
  • the center of gravity When sitting on a bicycle, the center of gravity will be located slightly forward of the axis 5 of the rear wheel 2, so that the center of gravity will not be backward and the bicycle will stably ride backwards without falling backwards You can do that.
  • the pedal 6 is directly connected to the rear wheel 2, and since the rear wheel 2 can be directly driven to rotate by pedaling the pedal 6, a chain wheel or a chain is provided like a conventional bicycle. There is no need to transmit power to the rear wheels.
  • the saddle 4 is provided at the upper end of the column 3, the rear wheel 2 is pivotally supported at the lower end of the column 3, and the pedal 6 is attached to the shaft 5 of the rear wheel 2.
  • the rear part of the bicycle has a structure similar to a unicycle.
  • the unicycle is configured such that the unicycle is seated on the saddle above the wheel and the wheel is rotated by a pedal provided directly on the shaft of the wheel.
  • the rear wheel 2 is rotated by a pedal 6 provided directly on the shaft 5 of the rear wheel 2.
  • the column 3 will be in a substantially vertical state and the vehicle can be driven by one wheel of the rear wheel 2. In this state, the vehicle can be driven in the same manner as a unicycle.
  • the rider can perform an acrobatic riding by lifting the steering wheel 13 and riding with the front wheel 1 largely lifted.
  • the bicycle of the present invention is used for a competition in which the rider performs a riding performance. It can also be.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Automatic Cycles, And Cycles In General (AREA)

Abstract

A bicycle having a front wheel and a rear wheel is such that a seat post provided at an upper end thereof with a saddle pivotally supports the rear wheel at a lower end thereof, and the rear wheel axle mounts thereto a pedal. Pedaling directly revolves the rear wheel, and there is no need of providing a power transmitting mechanism such as a chain wheel and a chain between the front wheel and the rear wheel as in conventional bicycles. Also, a rear portion of the bicycle is constructed in the same manner as a monocycle, and it is possible to ride the bicycle in a similar sense to a monocycle.

Description

明細書  Specification
自転車  Bicycle
技術分野 Technical field
本発明は、 二輪の自転車に関するものである  The present invention relates to a two-wheeled bicycle
背景技術 Background art
自転車は一般に図 2に示すように、 フレーム 2 5の前部に前輪 1を、 後部に後輪 2をそれぞれ取り付け、 フレーム 2 5の前端に前輪 1の操舵 をするハンドル 1 3を設けると共に前輪 1と後輪 2の間においてフレー ム 2 5の後部の上端にサドル 4を設け、 また前輪 1と後輪 2の間におい てフレーム 2 5の下端部にチェーンホイール 2 6を取り付けると共にチ エーンホイール 2 6にべダル 6を設けたクランク 2 2を取り付け、 そし て後輪 2の軸に設けたリアチヱ一ンホイール 2 7とチェーンホイル 2 6 との間にチェーン 2 8を懸架することによって、 組み立てられている。 このように自転車は多数の部品を組み立てて形成されているために、 重量が重くなり、 またチェーンホイール 2 6と後輪 2のリアチェーンホ ィール 2 7の間にチェーン 2 8を懸架し、 ベダル 6をこいでチェーンホ ィール 2 6を回転させることによってチェーン 2 8で動力を後輪 2に伝 達して回転させる構造になっており、 前輪 1と後輪 2の間にチェーンホ ィール 2 6やチェーン 2 8を設ける必要があるために、 前輪 1と後輪 2 との間の間隔 （ホイールベース） が長くなり、 自転車の全体が大型化す るものであった。  As shown in Fig. 2, a bicycle generally has a front wheel 1 at the front of a frame 25 and a rear wheel 2 at the rear, and a handle 13 for steering the front wheel 1 is provided at the front end of the frame 25, and a front wheel 1 is provided. A saddle 4 is provided at the upper rear end of the frame 25 between the front wheel 2 and the rear wheel 2, and a chain wheel 26 is attached to the lower end of the frame 25 between the front wheel 1 and the rear wheel 2 and a chain wheel 2 is provided. 6 is assembled by attaching a crank 22 with a pedal 6 to the rear wheel 2 and suspending a chain 28 between a rear wheel 27 and a chain wheel 26 provided on the shaft of the rear wheel 2. ing. In this way, the bicycle is formed by assembling a large number of parts, so that the weight becomes heavy, and the chain 28 is suspended between the chain wheel 26 and the rear chain wheel 27 of the rear wheel 2, so that Power is transmitted to the rear wheel 2 by the chain 28 by rotating the chain wheel 26 by turning the chain wheel 6, and the chain wheel is rotated.The chain wheel 26 and the chain 2 are connected between the front wheel 1 and the rear wheel 2. Because of the necessity of providing eight, the distance between the front wheel 1 and the rear wheel 2 (wheel base) becomes longer, and the entire bicycle becomes larger.
このように従来の自転車は重量が重く大きな形態に形成されるもので あり、 マンションなどの集合住宅のように狭い住宅では収納することが 困難になるという問題があつた。  As described above, the conventional bicycle is formed in a heavy and large form, and there is a problem that it is difficult to store the bicycle in a small house such as an apartment house.
また最近では小学生を中心に一輪車に乗ることが広まっている。 一輪 車は車輪の真上のサドルに腰掛け、 車輪の軸に直接設けたペダルを漕い で車輪を回転させることによって走行するようにしたものであるが、 一 輪車は前後方向に倒れる危険性が高く、 安全に練習することが難しいも のであった。 Recently, the use of unicycles by elementary school children has been widespread. One wheel A car is seated on the saddle just above the wheels, and the vehicle is run by turning the wheels by pedaling directly on the wheel shaft.However, unicycles have a high risk of falling in the front-rear direction. It was difficult to practice safely.
発明の開示 Disclosure of the invention
本発明は上記の点に鑑みてなされたものであり、 軽量で且つ小型に形 成することができ、 加えて一輪車に乗る安全な練習をすることもできる 自転車を提供することを目的とするものである。  The present invention has been made in view of the above points, and an object of the present invention is to provide a bicycle that can be formed to be lightweight and small, and that can be used to practice safe riding on a unicycle. It is.
本発明に係る自転車は、 前輪 1と後輪 2を有する二輪の自転車におい て、 上端にサドル 4を設けた座柱体 3の下端に後輪 2を枢支し、 後輪 2 の軸 5にペダル 6を取り付けて成ることを特徴とするものである。 この ため、 ペダルを漕ぐことによって後輪を直接回転させることができ、 従 来の自転車のようにチェーンホイールやチェーンのような動力伝達機構 を前輪と後輪の間に設ける必要がなくなり、 ホイールベースを短くして 小型に形成することができると共に軽量に形成することができるもので あり、 マンションなどの集合住宅のように狭い住宅においても収納する ことが容易になって、 自転車の置場に困るというようなことがなくなる ものである。 また、 自転車の後部の構造は一輪車と同じような構造であ つて、一輪車に乗るのと同じような感党で乗ることができるものであり、 しかも後輪の前方には前輪があるために一輪車のように前後方向に倒れ るような危険性が少なく、 安全に一輪車に乗る練習をすることができる ものである。  The bicycle according to the present invention is a two-wheeled bicycle having a front wheel 1 and a rear wheel 2, wherein a rear wheel 2 is pivotally supported at a lower end of a seat column 3 having an upper end provided with a saddle 4, and a shaft 5 of the rear wheel 2 is provided. It is characterized in that the pedal 6 is attached. This allows the rear wheel to be rotated directly by pedaling, eliminating the need for a power transmission mechanism such as a chain wheel or chain between the front and rear wheels as in a conventional bicycle. It is possible to reduce the size of the bicycle and make it compact and lightweight, and it is easy to store it even in a narrow house such as an apartment house, so it is difficult to store bicycles. Such a thing disappears. Also, the structure of the rear part of the bicycle is similar to that of a unicycle, and it is possible to ride with the same kind of feeling as riding a unicycle, and there is a front wheel in front of the rear wheel, so the unicycle is As shown in the figure, there is little danger of falling down in the front-rear direction, and it is possible to practice riding a unicycle safely.
また上記の座柱体 3を前方へ傾斜させているので、 座柱体の上端のサ ドルは後輪の軸よりやや前方に位置し、 サドルに腰掛けたときの重心は 後輪の軸よりやや前寄りに位置することになるものであって、 後方へ仰 向けに転倒するようなことなく、 安定して自転車を運転することができ るものである。 Also, since the above-mentioned seat pillar 3 is inclined forward, the saddle at the upper end of the seat pillar is located slightly forward of the rear wheel axis, and the center of gravity when sitting on the saddle is slightly ahead of the rear wheel axis. Is to be located closer to the front, The bicycle can be driven stably without falling over.
図面の簡単な説明 BRIEF DESCRIPTION OF THE FIGURES
図 1は本発明の一実施例に係る自転車を示す正面図である。 FIG. 1 is a front view showing a bicycle according to one embodiment of the present invention.
図 2は従来の自転車の一例を示す斜視図である。 FIG. 2 is a perspective view showing an example of a conventional bicycle.
発明を実施するための最良の形態 BEST MODE FOR CARRYING OUT THE INVENTION
以下、 本発明の実施の形態を図 1に基づいて説明する。 Hereinafter, an embodiment of the present invention will be described with reference to FIG.
—般の自転車は逆三角形のフレームを骨格として有するが、 本発明の 自転車では、 金属パイプ等で作製される一本のロッド 1 0のみで骨格を 形成するようにしてあり、 このロッド 1 0の前端にヘッドパイプ 1 1を 溶接等で取り付け、 またロッド 1 0の後端に座柱体 3が取り付けてある。 前端のへッドパイプ 1 1にはハンドルステム 1 2が水平方向に回動自 在に揷着してある。 ハンドルステム 1 2の上端には両端にグリップを設 けたハンドルバ一 1 3が取り付けてあり、 またハンドルステム 1 2の下 端には二股のフロントフォーク 1 4が取り付けてある。 前輪 1はその軸 1 5をこのフロントフォーク 1 4の下端に枢支して取り付けてある。 1 6はハンドル 1 3に取り付けたブレーキレバーであって、 前輪 1に設け たブレーキ装置 1 7にワイヤ一 1 8を介して接続してあり、 ブレーキレ バー 1 6を引くことによってブレーキ装置 1 7を作動させて前輪 1を制 動できるようにしてある。  A general bicycle has an inverted triangular frame as a skeleton, but in the bicycle of the present invention, the skeleton is formed by only one rod 10 made of a metal pipe or the like. The head pipe 11 is attached to the front end by welding or the like, and the column 3 is attached to the rear end of the rod 10. A handle stem 12 is attached to the head pipe 11 at the front end so as to be freely rotated in the horizontal direction. A handlebar 13 having grips at both ends is attached to an upper end of the handle stem 12, and a forked front fork 14 is attached to a lower end of the handle stem 12. The front wheel 1 has a shaft 15 pivotally attached to a lower end of the front fork 14. Reference numeral 16 denotes a brake lever attached to the handlebar 13, which is connected to a brake device 17 provided on the front wheel 1 via a wire 18, and the brake device 17 is pulled by pulling the brake lever 16. When activated, the front wheel 1 can be controlled.
また座柱体 3はロッド 1 0の後端に溶接等で取り付けられるリアパイ プ 1 9と、 リアパイプ 1 9の下端に取り付けた二股のリアフォーク 2 0 と、 リァパイプ 1 9に下部を挿着したシートポスト 2 1から成るもので あり、 シートポスト 2 1の上端にはサドル 4が取り付けてある。 シ一卜 ポスト 2 1はリアパイプ 1 9に高さ調整自在に差し込んで挿着してあり、 ボルト等でリアパイプ 1 9にシートボスト 2 1を固定するようにしてあ る。 The seat post 3 has a rear pipe 19 attached to the rear end of the rod 10 by welding, a forked rear fork 20 attached to the lower end of the rear pipe 19, and a seat with a lower part inserted in the rear pipe 19. The seat post 21 has a saddle 4 attached to an upper end thereof. The seat post 21 is inserted into the rear pipe 19 so that the height can be adjusted freely. The seat post 21 is fixed to the rear pipe 19 with bolts or the like.
後輪 2は前輪 1よりも大きな直径に形成してあり、 その軸 5をリアフ オーク 2 0の下端に枢支してある。 後輪 2はこのように座柱体 3の下端 に枢支して取り付けてあるが、座柱体 3を前方へ向けて若干傾斜させて、 座柱体 3の上端のサドル 4が後輪 2の軸 5よりやや前方に位置するよう にしてある。 またこの後輪 2の軸 5の両端にはそれぞれペダル 6が設け てある。 ペダル 6はクランク 2 2の先端部に取り付けてあり、 このクラ ンク 2 2の基部を軸 5に結合固定することによって、 軸 5にペダル 6を 取り付けるようにしてある。  The rear wheel 2 is formed with a larger diameter than the front wheel 1, and its shaft 5 is pivotally supported at the lower end of the rear fork 20. The rear wheel 2 is thus pivotally attached to the lower end of the column 3, but the column 3 is slightly inclined forward so that the saddle 4 at the upper end of the column 3 is attached to the rear wheel 2. It is located slightly ahead of axis 5 of the camera. A pedal 6 is provided at each end of the shaft 5 of the rear wheel 2. The pedal 6 is attached to the tip of the crank 22, and the pedal 6 is attached to the shaft 5 by connecting and fixing the base of the crank 22 to the shaft 5.
上記のようにして本発明に係る二輪の自転車を形成することができる ものであり、 この自転車を運転するにあたっては、 サドル 4に跨いで腰 掛け、 両手でハンドル 1 3のグリップを握ってペダル 6を足で漕ぐこと によって、 後輪 2を回転させて自転車を走行させると共に、 ハンドル 1 3を操作して前輪 1の向きを操作することによって、 進行方向を変更す ることができるものである。 ここで、 上記のように後輪 2の直径を前輪 1よりも大きく形成してあるので、 ペダル 6を漕いで後輪 2を直接回転 させて走行するにあたって、 速い走行速度を出すことができるものであ る。  As described above, the two-wheeled bicycle according to the present invention can be formed. To drive this bicycle, sit on the saddle 4, hold the grip of the handle 13 with both hands, and hold the pedal 6. By running the bicycle with the feet, the rear wheels 2 can be rotated to run the bicycle, and the steering direction of the front wheels 1 can be operated by operating the handles 13 to change the traveling direction. Here, since the diameter of the rear wheel 2 is formed larger than that of the front wheel 1 as described above, when the pedal 6 is rowed and the rear wheel 2 is directly rotated to travel, a high traveling speed can be obtained. It is.
このように自転事に乗るにあたって、 上記のように座柱体 3を前方へ 向けて若干傾斜させてサドル 4が後輪 2の軸 5よりやや前方に位置する ようにしてあるために、 サドル 4に腰掛けたときの重心は後輪 2の軸 5 よりやや前寄りに位置することになり、 重心が後寄りになって後方へ仰 向けに転倒するようなことがなく、 安定して自転車を運転することがで きるものである。 そして上記のように、 ペダル 6は後輪 2に直結させてあり、 ペダル 6 を漕ぐことによって後輪 2を直接回転駆動させることができるために、 従来の自転車のようにチヱーンホイールやチェーンを設けて動力を後輪 に伝達させるような必要がなくなる。 従ってチヱ一ンホイールやチヱ一 ンを前輪 1と後輪 2の間に設ける必要がなくなって前輪 1と後輪 2との 間の間隔 （ホイールべ一ス） を短くすることができ、 自転車の全長を短 くして小型に形成することが容易になり、 またチェーンホイールやチェ ーンなどの動力伝達機構が不要である結果、 部品点数を少なくして自転 車を軽量に形成することができるものである。 そしてこのように小型で 且つ軽量に自転車を形成することができるために、 マンションなどの集 合住宅のように狭い住宅においても収納することが容易になり、 自転車 の置場に困るというようなことがなくなるものである。 As described above, when riding on the bicycle, the saddle 4 is slightly inclined forward so that the saddle 4 is positioned slightly forward of the shaft 5 of the rear wheel 2. When sitting on a bicycle, the center of gravity will be located slightly forward of the axis 5 of the rear wheel 2, so that the center of gravity will not be backward and the bicycle will stably ride backwards without falling backwards You can do that. And, as described above, the pedal 6 is directly connected to the rear wheel 2, and since the rear wheel 2 can be directly driven to rotate by pedaling the pedal 6, a chain wheel or a chain is provided like a conventional bicycle. There is no need to transmit power to the rear wheels. Therefore, it is not necessary to provide a chain wheel or a chain between the front wheel 1 and the rear wheel 2, and the distance (wheel base) between the front wheel 1 and the rear wheel 2 can be shortened. Shorter overall length makes it easier to reduce the size, and eliminates the need for a power transmission mechanism such as a chain wheel or chain, thereby reducing the number of parts and making the bicycle lighter. It is. And since the bicycle can be made small and lightweight in this way, it is easy to store it even in a small house such as a condominium or other condominium, which may make it difficult to place a bicycle. Will be gone.
また本発明に係る自転車は、 座柱体 3の上端にサドル 4を設けると共 に座柱体 3の下端に後輪 2を枢支し、 後輪 2の軸 5にペダル 6を取り付 けた構造になっているために、 自転車の後部は一輪車と同じような構造 になっている。 すなわち、 一輪車は車輪の上方のサドルに腰掛け、 車輪 の軸に直接設けたペダルで車輪を回転させるようにしたものであるが、 本発明の自転車においても、 後輪 2の上方のサドル 4に腰掛け、 後輪 2 の軸 5に直接設けたペダル 6で後輪 2を回転させるようになつている。 従って、 本発明の自転車に一輪車に乗るのと同じような感覚で乗ること ができるものであり、 しかも後輪 2の前方には前輪 1があるために一輪 車のように前後方向に倒れるような危険性は少なく、 本発明の自転車に よって一輪車に乗る練習を安全に行なうことができるものである。  Further, in the bicycle according to the present invention, the saddle 4 is provided at the upper end of the column 3, the rear wheel 2 is pivotally supported at the lower end of the column 3, and the pedal 6 is attached to the shaft 5 of the rear wheel 2. Due to the structure, the rear part of the bicycle has a structure similar to a unicycle. In other words, the unicycle is configured such that the unicycle is seated on the saddle above the wheel and the wheel is rotated by a pedal provided directly on the shaft of the wheel. The rear wheel 2 is rotated by a pedal 6 provided directly on the shaft 5 of the rear wheel 2. Therefore, it is possible to ride the bicycle of the present invention with the same feeling as riding a unicycle, and since the front wheel 1 is located in front of the rear wheel 2, the bicycle falls down in the front-rear direction like a unicycle. There is little danger, and the ride of the unicycle can be safely performed by the bicycle of the present invention.
尚、 ハンドル 1 3を持ち上げて前輪 1を若干浮かすようにすると、 座 柱体 3が略垂直状態になって後輪 2の一輪で走行することができるもの であり、 この状態では一輪車と同じように運転することができるもので ある。 また、 ハンドル 1 3を持ち上げて前輪 1を大きく浮かした状態で 乗るなどすることによって、 ァクロバット的な曲乗りを行なうことがで きるものであり、 本発明の自転車を曲乗りの演技を競う競技に使用する こともできるものである。 If the front wheel 1 is lifted slightly by lifting the handle 13, the column 3 will be in a substantially vertical state and the vehicle can be driven by one wheel of the rear wheel 2. In this state, the vehicle can be driven in the same manner as a unicycle. In addition, the rider can perform an acrobatic riding by lifting the steering wheel 13 and riding with the front wheel 1 largely lifted.The bicycle of the present invention is used for a competition in which the rider performs a riding performance. It can also be.

Claims

請求の範囲 The scope of the claims
1 . 前輪と後輪を有する二輪の自転車において、 上端にサドルを設けた 座柱体の下端に後輪を枢支し、 後輪の軸にペダルを設けて成ることを特 徴とする自転車。 1. A two-wheeled bicycle with front and rear wheels, characterized in that the rear wheel is pivotally supported at the lower end of a seat column with a saddle at the upper end and a pedal is provided on the shaft of the rear wheel.
2 . 座柱体を前方へ傾斜させて成ることを特徴とする請求項 1に記載の 自転車。 2. The bicycle according to claim 1, wherein the seat pillar is inclined forward.
PCT/JP1997/002281 1996-07-02 1997-07-02 Bicycle WO1998000331A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU33578/97A AU3357897A (en) 1996-07-02 1997-07-02 Bicycle

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP8/172561 1996-07-02
JP17256196A JPH1016855A (en) 1996-07-02 1996-07-02 Bicycle

Publications (1)

Publication Number Publication Date
WO1998000331A1 true WO1998000331A1 (en) 1998-01-08

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AU (1) AU3357897A (en)
WO (1) WO1998000331A1 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2387823A (en) * 2002-04-16 2003-10-29 Chih Yang Yu Unicycle assembly with auxiliary wheel device
WO2004033282A1 (en) * 2002-09-13 2004-04-22 Wilhelm Alfred A Bicycle
DE102011055748A1 (en) 2011-10-17 2013-04-18 Karsten Bettin Compact collapsible bicycle
CN109436164A (en) * 2018-12-17 2019-03-08 东北大学秦皇岛分校 Foldable multimode list two-wheel can be changed bicycle

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20020024167A (en) * 2002-01-30 2002-03-29 이광섭 Bike which pedal is located in back wheel
CA2629637A1 (en) 2005-11-17 2007-05-24 Hideo Hotoda Bicycle
CN106043537A (en) * 2016-06-24 2016-10-26 朴成哲 Mountain type and leisure type dual-purpose bicycle

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Publication number Priority date Publication date Assignee Title
JPS60144588U (en) * 1984-03-07 1985-09-25 宮田工業株式会社 bicycle
JPH02200589A (en) * 1989-01-28 1990-08-08 Akitoshi Ishikawa Frame for bicycle
JPH0526777U (en) * 1991-09-19 1993-04-06 隆志 羽田 High-speed cruising bicycle

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Publication number Priority date Publication date Assignee Title
JPS60144588U (en) * 1984-03-07 1985-09-25 宮田工業株式会社 bicycle
JPH02200589A (en) * 1989-01-28 1990-08-08 Akitoshi Ishikawa Frame for bicycle
JPH0526777U (en) * 1991-09-19 1993-04-06 隆志 羽田 High-speed cruising bicycle

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2387823A (en) * 2002-04-16 2003-10-29 Chih Yang Yu Unicycle assembly with auxiliary wheel device
GB2387823B (en) * 2002-04-16 2004-03-03 Chih Yang Yu Unicycle assembly having auxiliary wheel device
WO2004033282A1 (en) * 2002-09-13 2004-04-22 Wilhelm Alfred A Bicycle
DE102011055748A1 (en) 2011-10-17 2013-04-18 Karsten Bettin Compact collapsible bicycle
DE102011122836A1 (en) 2011-10-17 2013-04-18 Karsten Bettin Compact, collapsible bike
WO2013056702A1 (en) 2011-10-17 2013-04-25 Bettin Karsten Compact, collapsible bicycle
US9051021B2 (en) 2011-10-17 2015-06-09 Karsten Bettin Compact, collapsible bicycle
CN109436164A (en) * 2018-12-17 2019-03-08 东北大学秦皇岛分校 Foldable multimode list two-wheel can be changed bicycle

Also Published As

Publication number Publication date
JPH1016855A (en) 1998-01-20
AU3357897A (en) 1998-01-21

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