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WO1998000331A1 - Bicyclette - Google Patents

Bicyclette Download PDF

Info

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
English (en)
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/fr

Links

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.

Landscapes

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

Abstract

L'invention concerne une bicyclette pourvue d'une roue avant et d'une roue arrière et conçue de sorte qu'une tige de selle ménagée à une extrémité supérieure et dotée d'une selle supporte de manière pivotante la roue arrière au niveau d'une extrémité inférieure, l'axe de la roue arrière étant fixé à une pédale. Le pédalage fait directement tourner la roue arrière, et il n'est pas nécessaire d'installer un mécanisme de transmission tel qu'un plateau de pédalier et une chaîne entre la roue avant et la roue arrière comme dans les bicyclettes traditionnelles. D'autre part, une partie arrière de la bicyclette est conçue de la même manière qu'un monocycle et il est ainsi possible d'utiliser la bicyclette à la manière d'un monocycle.
PCT/JP1997/002281 1996-07-02 1997-07-02 Bicyclette WO1998000331A1 (fr)

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
JP17256196A JPH1016855A (ja) 1996-07-02 1996-07-02 自転車
JP8/172561 1996-07-02

Publications (1)

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

Family

ID=15944141

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP1997/002281 WO1998000331A1 (fr) 1996-07-02 1997-07-02 Bicyclette

Country Status (3)

Country Link
JP (1) JPH1016855A (fr)
AU (1) AU3357897A (fr)
WO (1) WO1998000331A1 (fr)

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 (fr) * 2002-09-13 2004-04-22 Wilhelm Alfred A Vehicule a deux roues
DE102011122836A1 (de) 2011-10-17 2013-04-18 Karsten Bettin Kompaktes, zusammenklappbares Fahrrad
CN109436164A (zh) * 2018-12-17 2019-03-08 东北大学秦皇岛分校 可折叠多状态单双轮可变自行车

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20020024167A (ko) * 2002-01-30 2002-03-29 이광섭 페달이 뒷바퀴에 있는 자전거
WO2007057992A1 (fr) * 2005-11-17 2007-05-24 Hideo Hotoda Bicyclette
CN106043537A (zh) * 2016-06-24 2016-10-26 朴成哲 一种山地式、休闲式两用自行车

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60144588U (ja) * 1984-03-07 1985-09-25 宮田工業株式会社 自転車
JPH02200589A (ja) * 1989-01-28 1990-08-08 Akitoshi Ishikawa 自転車用フレーム
JPH0526777U (ja) * 1991-09-19 1993-04-06 隆志 羽田 高速巡行用自転車

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60144588U (ja) * 1984-03-07 1985-09-25 宮田工業株式会社 自転車
JPH02200589A (ja) * 1989-01-28 1990-08-08 Akitoshi Ishikawa 自転車用フレーム
JPH0526777U (ja) * 1991-09-19 1993-04-06 隆志 羽田 高速巡行用自転車

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 (fr) * 2002-09-13 2004-04-22 Wilhelm Alfred A Vehicule a deux roues
DE102011122836A1 (de) 2011-10-17 2013-04-18 Karsten Bettin Kompaktes, zusammenklappbares Fahrrad
DE102011055748A1 (de) 2011-10-17 2013-04-18 Karsten Bettin Kompaktes zusammenklappbares Fahrrad
WO2013056702A1 (fr) 2011-10-17 2013-04-25 Bettin Karsten Bicyclette compacte pliable
US9051021B2 (en) 2011-10-17 2015-06-09 Karsten Bettin Compact, collapsible bicycle
CN109436164A (zh) * 2018-12-17 2019-03-08 东北大学秦皇岛分校 可折叠多状态单双轮可变自行车

Also Published As

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

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