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FR2409183A1 - Bicycle drive with spring assist - has springs acting on crank and extension, with force adjusted by screws - Google Patents

Bicycle drive with spring assist - has springs acting on crank and extension, with force adjusted by screws

Info

Publication number
FR2409183A1
FR2409183A1 FR7734978A FR7734978A FR2409183A1 FR 2409183 A1 FR2409183 A1 FR 2409183A1 FR 7734978 A FR7734978 A FR 7734978A FR 7734978 A FR7734978 A FR 7734978A FR 2409183 A1 FR2409183 A1 FR 2409183A1
Authority
FR
France
Prior art keywords
crank
screws
extension
bicycle drive
springs acting
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.)
Granted
Application number
FR7734978A
Other languages
French (fr)
Other versions
FR2409183B3 (en
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 FR7734978A priority Critical patent/FR2409183A1/en
Publication of FR2409183A1 publication Critical patent/FR2409183A1/en
Application granted granted Critical
Publication of FR2409183B3 publication Critical patent/FR2409183B3/fr
Granted legal-status Critical Current

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
    • B62M1/10—Rider propulsion of wheeled vehicles involving devices which enable the mechanical storing and releasing of energy occasionally, e.g. arrangement of flywheels
    • B62M1/105—Rider propulsion of wheeled vehicles involving devices which enable the mechanical storing and releasing of energy occasionally, e.g. arrangement of flywheels using elastic elements

Landscapes

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

Abstract

The bicycle drive has a crank (1) and a sprocket (2). The crank carries an arm (6) and a stop (7) and the wheel has two stops (8) for receiving the ends of springs (5). The wheel also has a double bearing part (9) with two screws (10, 11). The first screw (10) adjusts spring force for weight and muscle power and the second (11) limits the crank travel, and hence the spring force. Varying forces exerted on the pedals vary the drive forces.
FR7734978A 1977-11-22 1977-11-22 Bicycle drive with spring assist - has springs acting on crank and extension, with force adjusted by screws Granted FR2409183A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7734978A FR2409183A1 (en) 1977-11-22 1977-11-22 Bicycle drive with spring assist - has springs acting on crank and extension, with force adjusted by screws

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7734978A FR2409183A1 (en) 1977-11-22 1977-11-22 Bicycle drive with spring assist - has springs acting on crank and extension, with force adjusted by screws

Publications (2)

Publication Number Publication Date
FR2409183A1 true FR2409183A1 (en) 1979-06-15
FR2409183B3 FR2409183B3 (en) 1980-08-01

Family

ID=9197861

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7734978A Granted FR2409183A1 (en) 1977-11-22 1977-11-22 Bicycle drive with spring assist - has springs acting on crank and extension, with force adjusted by screws

Country Status (1)

Country Link
FR (1) FR2409183A1 (en)

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2516886A2 (en) * 1981-11-23 1983-05-27 Cubizolles Alexis Spring assisted bicycle crank - has each crank mounted for limited rotation relative to shaft to compress or tension spring
US4753127A (en) * 1985-08-12 1988-06-28 Ernst Baumann Pedal crank mechanism comprising a sprocket wheel
US4898047A (en) * 1987-09-14 1990-02-06 Cropek Douglas A Crank and sprocket drive
US5060536A (en) * 1990-03-05 1991-10-29 Boys Donald R Flexible crank drive
US5157988A (en) * 1991-06-11 1992-10-27 Pinkstock Donald H Elastic crank for bicycles
WO1994027860A1 (en) * 1993-06-01 1994-12-08 Henry Arthur Hopgood Rotary drive mechanism
FR2724360A1 (en) * 1994-09-08 1996-03-15 Gignoux Pierre SUSPENSION DEVICE FOR PEDAL CYCLES
WO1999022981A1 (en) * 1997-10-30 1999-05-14 Haaheim Oeyvind Cycle crank
WO2003000542A1 (en) 2001-06-26 2003-01-03 Gerhard Hilber Pedal crank drive mechanism for a bicycle
JP2013112331A (en) * 2011-11-25 2013-06-10 Norimasa Sasaki Bicycle
JP5871351B1 (en) * 2015-08-17 2016-03-01 謙二 船木 Wheel drive structure and bicycle
IT202000030344A1 (en) * 2020-12-10 2022-06-10 Ochain S R L BICYCLE WITH REAR SUSPENSION AND RELATIVE DEVICE FOR COMPENSATION OF THE TRAVEL OF SUCH SUSPENSION
IT202100001331A1 (en) * 2021-01-25 2022-07-25 Ochain S R L BICYCLE WITH REAR SUSPENSION AND RELATIVE DEVICE FOR COMPENSATION OF THE TRAVEL OF SUCH SUSPENSION
WO2024018493A1 (en) * 2022-07-21 2024-01-25 Ochain S.R.L. Bicycle with rear suspension and related compensating device of the travel of said suspension

Cited By (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2516886A2 (en) * 1981-11-23 1983-05-27 Cubizolles Alexis Spring assisted bicycle crank - has each crank mounted for limited rotation relative to shaft to compress or tension spring
US4753127A (en) * 1985-08-12 1988-06-28 Ernst Baumann Pedal crank mechanism comprising a sprocket wheel
US4898047A (en) * 1987-09-14 1990-02-06 Cropek Douglas A Crank and sprocket drive
US5060536A (en) * 1990-03-05 1991-10-29 Boys Donald R Flexible crank drive
US5157988A (en) * 1991-06-11 1992-10-27 Pinkstock Donald H Elastic crank for bicycles
GB2294015B (en) * 1993-06-01 1997-02-26 Henry Arthur Hopgood Rotary drive mechanism
WO1994027860A1 (en) * 1993-06-01 1994-12-08 Henry Arthur Hopgood Rotary drive mechanism
GB2294015A (en) * 1993-06-01 1996-04-17 Henry Arthur Hopgood Rotary drive mechanism
US5653150A (en) * 1994-09-08 1997-08-05 Gignoux; Pierre Pedalling device with suspension for cycles
EP0700824A3 (en) * 1994-09-08 1996-08-14 Pierre Gignoux Suspension pedaling device for bicycles
FR2724360A1 (en) * 1994-09-08 1996-03-15 Gignoux Pierre SUSPENSION DEVICE FOR PEDAL CYCLES
WO1999022981A1 (en) * 1997-10-30 1999-05-14 Haaheim Oeyvind Cycle crank
WO2003000542A1 (en) 2001-06-26 2003-01-03 Gerhard Hilber Pedal crank drive mechanism for a bicycle
AT410533B (en) * 2001-06-26 2003-05-26 Hilber Gerhard Ing CRANKSET FOR A BICYCLE
JP2013112331A (en) * 2011-11-25 2013-06-10 Norimasa Sasaki Bicycle
JP5871351B1 (en) * 2015-08-17 2016-03-01 謙二 船木 Wheel drive structure and bicycle
WO2017030042A1 (en) * 2015-08-17 2017-02-23 謙二 船木 Wheel driving structure, and bicycle
IT202000030344A1 (en) * 2020-12-10 2022-06-10 Ochain S R L BICYCLE WITH REAR SUSPENSION AND RELATIVE DEVICE FOR COMPENSATION OF THE TRAVEL OF SUCH SUSPENSION
IT202100001331A1 (en) * 2021-01-25 2022-07-25 Ochain S R L BICYCLE WITH REAR SUSPENSION AND RELATIVE DEVICE FOR COMPENSATION OF THE TRAVEL OF SUCH SUSPENSION
WO2024018493A1 (en) * 2022-07-21 2024-01-25 Ochain S.R.L. Bicycle with rear suspension and related compensating device of the travel of said suspension

Also Published As

Publication number Publication date
FR2409183B3 (en) 1980-08-01

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Legal Events

Date Code Title Description
ST Notification of lapse