FR2567475A1 - Differential pedal box - Google Patents

Differential pedal box Download PDF

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Publication number
FR2567475A1
FR2567475A1 FR8401082A FR8401082A FR2567475A1 FR 2567475 A1 FR2567475 A1 FR 2567475A1 FR 8401082 A FR8401082 A FR 8401082A FR 8401082 A FR8401082 A FR 8401082A FR 2567475 A1 FR2567475 A1 FR 2567475A1
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FR
France
Prior art keywords
pedal lever
pedal
fixed
lever
crankset
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Withdrawn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
FR8401082A
Other languages
French (fr)
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 FR8401082A priority Critical patent/FR2567475A1/en
Publication of FR2567475A1 publication Critical patent/FR2567475A1/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Withdrawn legal-status Critical Current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
    • B62M1/00—Rider propulsion of wheeled vehicles
    • B62M1/36—Rider propulsion of wheeled vehicles with rotary cranks, e.g. with pedal cranks
    • 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
    • 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
    • B62M2003/006—Crank arrangements to overcome dead points

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

Abstract

Differential pedal box designed for velocipedes (bikes, cycles of all types), whose movement is provided by a pedalling mechanism, which has the objective of producing less effort and obtaining greater speeds than those obtained by existing, conventional cycles. This result is obtained by automatically increasing the length of the lever arm 2 of the pedal, in the active working zone, towards the front through 90 degrees. It is composed of two sets of three elements, each comprising: a pedal lever support 1, a pedal lever 2 provided with a roller 3 and a fixed circular guide 4. The support 1 is fixed to the axis of the existing pedal box; in this support 1 there slides the pedal lever 2, held in its total movement by means of the adjoining roller 3 rolling inside the circular guide 4 which is fixed off-centre to the hub of the pedal box incorporated with the frame to be equipped.

Description

DEMANDE DE BREVET DIINVENTION
POUR
PEDALIER DIFFERENTIEL
La presente invention concerne un ensemble ds pédalier différentiel s'appliquant aux vélocipédes, 9vélos, etc...) dont le déplacement est provoqué par un mécanisme à pédalage.DIINVENTION PATENT APPLICATION
FOR
DIFFERENTIAL CRANKSET
The present invention relates to a set of differential cranks applicable to bicycles, 9 bikes, etc.) whose displacement is caused by a pedaling mechanism.

Cet ensemble est composé de deux jeux, comprenent chacun support de levier de pÉdale - 1 levier de pedale - 1 guide.This set is made up of two sets, each of which includes a pedal lever support - 1 pedal lever - 1 guide.

Il supprime les mécanismes de pedalage traditionnels. Tous les autres éléments restent inchangés, tels que z axs,plateau denté ainsi que le pignon AR avec leurs différets étages, la chaîne de commande, et le changement de vitesses.It removes traditional pedaling mechanisms. All the other elements remain unchanged, such as z axs, toothed chainring as well as the pinion AR with their different stages, the control chain, and the gear change.

Le but est de produire moine d'effort et d'obtenir des vitesses supe'- risures à celles obtenues par cycles classiques, quels qu'ils soient.The aim is to produce less effort and to obtain higher speeds than those obtained by conventional cycles, whatever they may be.

Ce résultat est obtenu par augmentation automatique da la longueur du bras de levier de pédale, pendant le moment travail effectif, depuis le point mort haut vers l'AV, jusqu'au point mort bas,depuie lEquel le le- vier diminue et devient libre, jusqu'à un nouveau point mort haut, d'oû tout recommenceL
Un support de levier se fixe sur l'axe et le plateau, le deuxieme se fixe sur l'autre extémité de leaxeSce qui équivaut au montage normal des pédales.This result is obtained by automatic increase in the length of the pedal lever arm, during the actual working moment, from top dead center towards the front, to bottom dead center, from which the lever decreases and becomes free. , to a new top dead center, from where it all starts again
A lever support is fixed on the axis and the plate, the second is fixed on the other end of the leaxeSce which is equivalent to the normal mounting of the pedals.

Le bras de levier de pédale augmente en longueur au moment de l'effort maximum,dans toute la zone AV dans 90 , il diminue sur la zone AR.The pedal lever arm increases in length at the time of maximum effort, in the entire AV zone in 90, it decreases in the AR zone.

Il coulisse dans le supportsest maintenu en position par un galet fou attenant,tournant dans un guide circulaire fixé sur le moyeu existant.It slides in the supports is held in position by an adjoining idler, rotating in a circular guide fixed on the existing hub.

Les FIGURES.I.2.3. de la planche unique annexée,sont données schémati- quement à titre d'exemple non limitatif pour mieux suivre le fonctionnement.FIGURES.I.2.3. of the attached single plate, are given diagrammatically by way of nonlimiting example for better monitoring of the operation.

FIGUE. I. Montre le bras de levier de pédale fixe tel que monté habituellement,partant du centre de rotation du pédalier, pour une force F donnée au moment travail effectif.FIG. I. Shows the fixed pedal lever arm as usually mounted, starting from the center of rotation of the crankset, for a force F given at the time of actual work.

FIGURE.2. Montre la même position que la Figure.I,le bras de levier augmenté, avec la même force F,et le gain obtenu par le pédalier dif
férentiel représenté par la surface hachurée.FIGURE. 2. Shows the same position as Figure.I, the lever arm increased, with the same force F, and the gain obtained by the crankset differs
ferential represented by the hatched area.

FIGURE. 3. Dans le support (i),coulisse le levier de pédale (2),positionpé dans son déplacement par l'intermédiaire du galet (3), attenant et roulant dans le guide circulaire fixe (4), monté excentré a@utour du moyeu de rotation faisant corps avec le cadre ossature du cycle a équi-
per. FIGURE. 3. In the support (i), slide the pedal lever (2), positioned in its movement through the roller (3), adjoining and rolling in the fixed circular guide (4), mounted eccentrically around the rotation hub integral with the framework frame of the equilibrium cycle
per.

Claims (5)

REVENDICATIONS 1 - Pédalier différentiel appliquable aux vélocipédes (vélos, etc..)1 - Differential crankset applicable to velocipeds (bikes, etc.) dont le déplacement est provoqué par un mécanisme à pédalage, et the displacement of which is caused by a pedaling mechanism, and caractérisé par le fait qu'il comporte un bras de levier de pé- characterized by the fact that it comprises a lever for dale augmentant automatiquement an longueur pendant le temps dale automatically increasing in length over time travail actif. active work. - Pédalier différentiel, selon revendication 1, caractérisé en ce- Differential crankset, according to claim 1, characterized in que le bras de levier de pédale (2), a pour but da produire that the pedal lever arm (2) aims to produce moins d'effort, et d'obtenir des vitesses supérieures à celles less effort, and get higher speeds than those obtenues par les cycles classiques, quels qu'ils scient, déplacés obtained by conventional cycles, whatever they are, displaced par pédalage. by pedaling. 3 - Pédalier différentiel, selon revendications 1 et 2, caractérisé3 - Differential crankset, according to claims 1 and 2, characterized par le fait que le bras de levier de pédale (2), doit san dé by the fact that the pedal lever arm (2) must be placement avec l'augmentation de longueur, a un guide circu placement with increasing length, has a guide circu laire (4), fixé sur le cadre du vole ou autre,plac4 autour du area (4), fixed on the frame of the fly or other, placed around the moyeu du pédalier. bottom bracket. 4 - Selon revendications 2 et 3, caractérisé par le fait que l'en-4 - According to claims 2 and 3, characterized in that the semble est constitué par deux jeux d'éléments oomprenant cha seems consists of two sets of elements including cha cun : Un support (1), de levier de pédale, Un levier de pédals cun: A support (1), pedal lever, A pedal lever (2), Un guide (4). L'ensemble n'antraîne aucune modification à la conception traditionnelle des vélos, stc.....  (2), A guide (4). The set does not cause any modification to the traditional design of bikes, stc ..... 5 - Selon revendication 4, caractérisé par le fait, que dans le sup5 - According to claim 4, characterized in that in the sup port de levier (1), coulisse le levier de pédale (2),qui. est lever port (1), slide the pedal lever (2), which. East positionné dans son déplacement, par un galet ou (3),attenant  positioned in its movement, by a roller or (3), adjoining roulant à l'intérieur du guide fixe circulaire (4), excentré rolling inside the circular fixed guide (4), eccentric par rapport à l'axe de rotation du pédalier. relative to the axis of rotation of the crankset. 6 - Selon revendication 5, caractérisé par le fait que, le guide (4),6 - According to claim 5, characterized in that, the guide (4), est fixe,mais peut être réglablatatin d'obtenir la variation is fixed, but can be adjustable to get the variation voulue sur l'excentration, par exemple avec une ouverture allon wanted on the offset, for example with an allon opening gée se déplaçant sur le moyeu. Cêtte excentration permet de do moving on the hub. This eccentricity allows you to do ser l'allongement du levier de pédale (2), pour le moment tighten the extension of the pedal lever (2), for the moment travail actif dans la zone AV comprise dans 90 degrés.  active work in the AV zone within 90 degrees.
FR8401082A 1984-01-18 1984-01-18 Differential pedal box Withdrawn FR2567475A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR8401082A FR2567475A1 (en) 1984-01-18 1984-01-18 Differential pedal box

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8401082A FR2567475A1 (en) 1984-01-18 1984-01-18 Differential pedal box

Publications (1)

Publication Number Publication Date
FR2567475A1 true FR2567475A1 (en) 1986-01-17

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
FR8401082A Withdrawn FR2567475A1 (en) 1984-01-18 1984-01-18 Differential pedal box

Country Status (1)

Country Link
FR (1) FR2567475A1 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1993021058A1 (en) * 1992-04-10 1993-10-28 Jacques Andre Dual-action device for cranksets
WO1997029009A1 (en) * 1996-02-08 1997-08-14 BRIERE, Véronique Power boosting crank gear for bicycles
GB2336140A (en) * 1998-04-08 1999-10-13 John Brian Dixon Pedelty Variable length bicycle crank
FR2824042A1 (en) 2001-04-30 2002-10-31 Joel Kerjean ENDLESS TRANSMISSION, ESPECIALLY FOR BICYCLES AND VEHICLES OR WINCHES EQUIPPED WITH SUCH TRANSMISSION

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1993021058A1 (en) * 1992-04-10 1993-10-28 Jacques Andre Dual-action device for cranksets
WO1997029009A1 (en) * 1996-02-08 1997-08-14 BRIERE, Véronique Power boosting crank gear for bicycles
FR2744691A1 (en) * 1996-02-08 1997-08-14 Briere Jean BICYCLE OVERHEAD CRANKSET
GB2336140A (en) * 1998-04-08 1999-10-13 John Brian Dixon Pedelty Variable length bicycle crank
GB2336140B (en) * 1998-04-08 2002-08-28 John Brian Dixon Pedelty Automatic variable length crank assembly
FR2824042A1 (en) 2001-04-30 2002-10-31 Joel Kerjean ENDLESS TRANSMISSION, ESPECIALLY FOR BICYCLES AND VEHICLES OR WINCHES EQUIPPED WITH SUCH TRANSMISSION
WO2002087956A1 (en) 2001-04-30 2002-11-07 Kerjean Joel Endless transmission, in particular for bicycle or vehicle or winch equipped with same

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