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 effortInfo
- 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
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.
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)
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 |
-
1974
- 1974-02-04 FR FR7403583A patent/FR2259739A1/en active Granted
Cited By (4)
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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