FR2259739A1 - Adjustable leverage bicycle pedal - has varying effective crank length when pedal is tilted to improve effort - Google Patents

Adjustable leverage bicycle pedal - has varying effective crank length when pedal is tilted to improve effort

Info

Publication number
FR2259739A1
FR2259739A1 FR7403583A FR7403583A FR2259739A1 FR 2259739 A1 FR2259739 A1 FR 2259739A1 FR 7403583 A FR7403583 A FR 7403583A FR 7403583 A FR7403583 A FR 7403583A FR 2259739 A1 FR2259739 A1 FR 2259739A1
Authority
FR
France
Prior art keywords
pedal
tilted
crank length
varying effective
roller
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
FR7403583A
Other languages
French (fr)
Other versions
FR2259739B3 (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.)
HUAT EUGENE
Original Assignee
HUAT EUGENE
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 HUAT EUGENE filed Critical HUAT EUGENE
Priority to FR7403583A priority Critical patent/FR2259739A1/en
Publication of FR2259739A1 publication Critical patent/FR2259739A1/en
Application granted granted Critical
Publication of FR2259739B3 publication Critical patent/FR2259739B3/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
    • B62M3/00—Construction of cranks operated by hand or foot
    • B62M3/02—Construction of cranks operated by hand or foot of adjustable length
    • B62M3/04—Construction of cranks operated by hand or foot of adjustable length automatically adjusting

Landscapes

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

Abstract

When the pedal is titled, the distance of application of force by the ball of the foot from the pivot point on the crank can be varied to vary the force exerted on the pedal. An eccentric boss (7) on the crank pivot is held against a smaller roller (9) and a larger one (8) mounted on a U-shaped arm (10) attached to the side of the pedal frame (1) so that when the pedal is tilted, this arm can slide, so that a spindle through the larger roller (8) swings a curved arm (13) so that a horizontal finger (18) travels in an arc, and a roller on a peg (20) extending from this finger travels in a cam slot in a boss (21) mounted on a spindle (2) passing through the crank pivot.
FR7403583A 1974-02-04 1974-02-04 Adjustable leverage bicycle pedal - has varying effective crank length when pedal is tilted to improve effort Granted FR2259739A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7403583A FR2259739A1 (en) 1974-02-04 1974-02-04 Adjustable leverage bicycle pedal - has varying effective crank length when pedal is tilted to improve effort

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7403583A FR2259739A1 (en) 1974-02-04 1974-02-04 Adjustable leverage bicycle pedal - has varying effective crank length when pedal is tilted to improve effort

Publications (2)

Publication Number Publication Date
FR2259739A1 true FR2259739A1 (en) 1975-08-29
FR2259739B3 FR2259739B3 (en) 1977-01-07

Family

ID=9134415

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7403583A Granted FR2259739A1 (en) 1974-02-04 1974-02-04 Adjustable leverage bicycle pedal - has varying effective crank length when pedal is tilted to improve effort

Country Status (1)

Country Link
FR (1) FR2259739A1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1997036779A1 (en) * 1996-03-29 1997-10-09 Javier Moresco Suarez Semi-articulated crank pedal for bicycles
FR3021621A1 (en) * 2014-06-02 2015-12-04 Stephane Aupy DEVICE FOR EXCENTING A PEDAL AXIS OF A PEDAL AND PEDAL EQUIPPED WITH SAID DEVICE
EP2934996B1 (en) * 2012-12-21 2020-05-06 Proto Fab Inc. Crankset and method for transfering power in a crankset

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1997036779A1 (en) * 1996-03-29 1997-10-09 Javier Moresco Suarez Semi-articulated crank pedal for bicycles
EP2934996B1 (en) * 2012-12-21 2020-05-06 Proto Fab Inc. Crankset and method for transfering power in a crankset
US10710673B2 (en) 2012-12-21 2020-07-14 Proto Fab Inc. Crankset and method for transfering power in a crankset
FR3021621A1 (en) * 2014-06-02 2015-12-04 Stephane Aupy DEVICE FOR EXCENTING A PEDAL AXIS OF A PEDAL AND PEDAL EQUIPPED WITH SAID DEVICE

Also Published As

Publication number Publication date
FR2259739B3 (en) 1977-01-07

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