GB2372486A - Bicycle drive mechanism - Google Patents

Bicycle drive mechanism Download PDF

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Publication number
GB2372486A
GB2372486A GB0104659A GB0104659A GB2372486A GB 2372486 A GB2372486 A GB 2372486A GB 0104659 A GB0104659 A GB 0104659A GB 0104659 A GB0104659 A GB 0104659A GB 2372486 A GB2372486 A GB 2372486A
Authority
GB
United Kingdom
Prior art keywords
oil pressure
oil
drive mechanism
pressure motor
way pipe
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.)
Withdrawn
Application number
GB0104659A
Other versions
GB0104659D0 (en
Inventor
Gin-Lian Cheng
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 GB0104659A priority Critical patent/GB2372486A/en
Publication of GB0104659D0 publication Critical patent/GB0104659D0/en
Publication of GB2372486A publication Critical patent/GB2372486A/en
Withdrawn legal-status Critical Current

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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
    • B62M19/00—Transmissions characterised by use of non-mechanical gearing, e.g. fluid gearing

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Motor Power Transmission Devices (AREA)

Abstract

A bicycle drive mechanism has an oil pressure pump (21), two crank arms (20) disposed on the oil pressure pump (21), a first three-way pipe (211) connected to the oil pressure pump (21), a second three-way pipe (211a) connected to the oil pressure pump (21), a first oil pressure motor (22), a second oil pressure motor (22a), a first oil pipe (210) connected to the first three-way pipe (211) and the first oil pressure motor (22), a second oil pipe (210a) connected to the second three-way pipe (211a) and the first oil pressure motor (22), a third oil pipe (210b) connected to the first three-way pipe (211) and the second oil pressure motor (22a), and a fourth oil pipe (210c) connected to the second three-way pipe (211a) and the second oil pressure motor (22a).

Description

TITLE : BICYCLE DRIVE MECHANISM BACKGROUND OF THE INVENTION The present invention relates to a bicycle drive mechanism, and more particularly to a bicycle drive mechanism which has an oil pressure pump and two oil pressure motors to drive a bicycle.
Referring to FIG. 1, a conventional bicycle drive mechanism has a chain wheel 13, a sprocket wheel 15, a drive chain 14 surrounding the chain wheel 13 and the sprocket wheel 15, and a crank arm 12 connected to the chain wheel 13. The structure of the conventional bicycle drive mechanism is complex and the drive chain 14 is easily broken.
SUMMARY OF THE INVENTION An object of the present invention is to provide a bicycle drive mechanism which has an oil pressure pump and two oil pressure motors to drive a bicycle.
Another object of the present invention is to provide a bicycle drive mechanism which has two speed variators to change a speed of a bicycle.
BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view of a conventional bicycle drive mechanism of the prior art disposed on a bicycle; FIG. 2 is a perspective view of a bicycle drive
mechanism of a preferred embodiment disposed on a bicycle ; and FIG. 3 is a perspective assembly view of a bicycle drive mechanism of a preferred embodiment in accordance with the present invention.
DETAILED DESCRIPTION OF THE INVENTION Referring to FIGS. 2 and 3, a bicycle drive mechanism comprises an oil pressure pump 21, two crank arms 20 disposed on the oil pressure pump 21, a first three-way pipe 211 connected to the oil pressure pump 21, a second three-way pipe 211a connected to the oil pressure pump 21, a first oil pressure motor 22, a second oil pressure motor 22ar a first oil pipe 210 connected to the first three-way pipe 211 and the first oil pressure motor 22, a second oil pipe 210a connected to the second three-way pipe 211a and the first oil pressure motor 22, a third oil pipe 210b connected to the first three-way pipe 211 and the second oil pressure motor 22a, and a fourth oil pipe 210c connected to the second three-way pipe 211a and the second oil pressure motor 22a.
A first speed variator 24 engages with the first oil pressure motor 22.
A second speed variator 24a engages with the second oil pressure motor 22a.

Claims (4)

  1. I CLAIM : 1. A bicycle drive mechanism comprises : an oil pressure pump, two crank arms disposed on the oil pressure pump, a first three-way pipe connected to the oil pressure pump, a second three-way pipe connected to the oil pressure pump, a first oil pressure motor, a second oil pressure motor, a first oil pipe connected to the first three-way pipe and the first oil pressure motor, a second oil pipe connected to the second three-way pipe and the first oil pressure motor, a third oil pipe connected to the first three-way pipe and the second oil pressure motor, and a fourth oil pipe connected to the second three-way pipe and the second oil pressure motor.
  2. 2. A bicycle drive mechanism as claimed in claim 1, wherein a first speed variator engages with the first oil pressure motor.
  3. 3. A bicycle drive mechanism as claimed in claim 2, wherein a second speed variator engages with the second oil pressure motor.
  4. 4. A bicycle drive mechanism substantially as herein described and illustrated with reference to the accompanying drawings.
GB0104659A 2001-02-24 2001-02-24 Bicycle drive mechanism Withdrawn GB2372486A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB0104659A GB2372486A (en) 2001-02-24 2001-02-24 Bicycle drive mechanism

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB0104659A GB2372486A (en) 2001-02-24 2001-02-24 Bicycle drive mechanism

Publications (2)

Publication Number Publication Date
GB0104659D0 GB0104659D0 (en) 2001-04-11
GB2372486A true GB2372486A (en) 2002-08-28

Family

ID=9909483

Family Applications (1)

Application Number Title Priority Date Filing Date
GB0104659A Withdrawn GB2372486A (en) 2001-02-24 2001-02-24 Bicycle drive mechanism

Country Status (1)

Country Link
GB (1) GB2372486A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2395696A (en) * 2002-11-27 2004-06-02 Marcus Lotinga Bicycle with fluid power augmentation of pedal drive
GB2430241A (en) * 2005-09-20 2007-03-21 David Thomson Wallace Conical gearing and all wheel drive bicycle
GB2514807A (en) * 2013-06-04 2014-12-10 Genius Ip Ltd Hydraulic and pneumatic drive system

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB817538A (en) * 1957-03-09 1959-07-29 John Issac George Improvements in and relating to cycles and the like machines
GB2102747A (en) * 1981-05-29 1983-02-09 Harold William Lamberth Hydraulic transmission for bicycle
US4684143A (en) * 1985-04-05 1987-08-04 Yasunori Sato Two-wheeled vehicle with hydraulic transmission
US4688815A (en) * 1984-03-27 1987-08-25 Lectrolarm Custom Systems, Inc. Hydraulically driven bicycle
WO1991017913A1 (en) * 1990-05-18 1991-11-28 Eckehart Schulze Bicycle with hydraulic driving device
CN1081418A (en) * 1992-07-22 1994-02-02 董云彪 Hydraulic transmission gear for bicycle
GB2318102A (en) * 1996-10-08 1998-04-15 Terry Thomas Cook Human powered hydraulic drive system

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB817538A (en) * 1957-03-09 1959-07-29 John Issac George Improvements in and relating to cycles and the like machines
GB2102747A (en) * 1981-05-29 1983-02-09 Harold William Lamberth Hydraulic transmission for bicycle
US4688815A (en) * 1984-03-27 1987-08-25 Lectrolarm Custom Systems, Inc. Hydraulically driven bicycle
US4684143A (en) * 1985-04-05 1987-08-04 Yasunori Sato Two-wheeled vehicle with hydraulic transmission
WO1991017913A1 (en) * 1990-05-18 1991-11-28 Eckehart Schulze Bicycle with hydraulic driving device
CN1081418A (en) * 1992-07-22 1994-02-02 董云彪 Hydraulic transmission gear for bicycle
GB2318102A (en) * 1996-10-08 1998-04-15 Terry Thomas Cook Human powered hydraulic drive system

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2395696A (en) * 2002-11-27 2004-06-02 Marcus Lotinga Bicycle with fluid power augmentation of pedal drive
GB2430241A (en) * 2005-09-20 2007-03-21 David Thomson Wallace Conical gearing and all wheel drive bicycle
GB2514807A (en) * 2013-06-04 2014-12-10 Genius Ip Ltd Hydraulic and pneumatic drive system

Also Published As

Publication number Publication date
GB0104659D0 (en) 2001-04-11

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Legal Events

Date Code Title Description
WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)