FR2867445A1 - Vertical pedal assembly for bicycle, has two carriages, one having ratchets driving chain using toothed wheels, where one wheel is integrated to flanges and force is vertically exerted on carriages through cranks fixed on carriages - Google Patents
Vertical pedal assembly for bicycle, has two carriages, one having ratchets driving chain using toothed wheels, where one wheel is integrated to flanges and force is vertically exerted on carriages through cranks fixed on carriages Download PDFInfo
- Publication number
- FR2867445A1 FR2867445A1 FR0402573A FR0402573A FR2867445A1 FR 2867445 A1 FR2867445 A1 FR 2867445A1 FR 0402573 A FR0402573 A FR 0402573A FR 0402573 A FR0402573 A FR 0402573A FR 2867445 A1 FR2867445 A1 FR 2867445A1
- Authority
- FR
- France
- Prior art keywords
- carriages
- carriage
- rail
- chain
- flanges
- 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- Withdrawn
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
- B62M1/24—Rider propulsion of wheeled vehicles with reciprocating levers, e.g. foot levers
Abstract
Description
La présente invention concerne un dispositif de pédalier vertical pourThe present invention relates to a vertical pedal device for
bicyclette.bicycle.
Le pédalier traditionnel est rotatif or, le poids s'exerce verticalement. Il n'est donc pleinement propulsif que sur une portion de cycle ( lorsque l'angle formé par la manivelle en appui et l'horizontale est proche de zéro). The traditional pedal is rotating gold, the weight is exercised vertically. It is therefore fully propulsive on a portion of the cycle (when the angle formed by the crank support and the horizontal is close to zero).
Le pédalier de l'invention demeure pleinement propulsif durant tout le cycle. The pedal of the invention remains fully propulsive throughout the cycle.
Selon une première caractéristique, il comporte deux rails opposés, parallèles et solidaires où sur l'extrémité de l'un se trouvent un ou plusieurs plateaux possédant en plus une roue dentée solidaire, de même axe de rotation et dont le diamètre est proche de la largeur du rail. A l'autre extrémité du même rail se trouve une autre roue dentée similaire. Elles sont reliées par une chaîne tendue grâce au canal et à un axe fileté aux extrémités, pourvu d'écrous pour le serrage. Entre les deux roues dentées circule un chariot captif du rail. Ce chariot comporte sur chacun de ses deux bords une rangée de cliquets entrainant alternativement la chaîne. Ce chariot est relié à un autre chariot se trouvant sur l'autre rail par une corde qui traverse les rails sur une poulie sous les plateaux. L'ensemble est tenu dans les hauts d'un cadre de vélo par le même axe que celui des plateaux de façon à ce qu'un basculement longitudinal soit possible. Chaque chariot possède une manivelle fixe orientée verticalement vers le bas et voit sa course limitée par des butées au bas de chaque rail. En réalisant un appui sur la pédale de droite, le cycliste lève ainsi celle de gauche par l'intermédiaire de la corde et entraîne directement la chaîne tendue. En réalisant un appui sur la pédale de gauche, la chaîne est entraînée par l'intermédiaire de la corde. Selon un mode particulier de réalisation, le réglage de tension de chaîne se fait grâce à un axe fileté vertical ayant prise sur l'axe de la roue dentée seule. According to a first feature, it comprises two opposite rails, parallel and integral where on the end of one are one or more trays having in addition a toothed wheel integral with the same axis of rotation and whose diameter is close to the width of the rail. At the other end of the same rail is another similar gear wheel. They are connected by a chain tensioned through the channel and a threaded shaft at the ends, provided with nuts for tightening. Between the two gears circulates a trolley captive of the rail. This carriage has on each of its two edges a row of ratchets alternately driving the chain. This carriage is connected to another carriage on the other rail by a rope which crosses the rails on a pulley under the trays. The assembly is held in the upper part of a bicycle frame by the same axis as the trays so that a longitudinal tilting is possible. Each carriage has a fixed crank oriented vertically downwards and sees its limited travel by stops at the bottom of each rail. By pressing the pedal on the right, the cyclist lifts the left one by means of the rope and directly drives the tensioned chain. By pressing the left pedal, the chain is driven through the rope. According to a particular embodiment, the chain tension adjustment is done through a vertical threaded shaft having taken on the axis of the toothed wheel alone.
Les dessins annexés illustrent l'invention: La figure 1 représente en vue de côté le dispositif de l'invention. The accompanying drawings illustrate the invention: FIG. 1 is a side view of the device of the invention.
La figure 2 le représente en coupe. Figure 2 shows it in section.
La figure 3 représente sans couvercle et vu de dessus le chariot pourvu de cliquets. Figure 3 shows without cover and seen from above the carriage provided with pawls.
2867445 2 En référence à ces dessins, le dispositif de l'invention comporte deux rails opposés, parallèles et solidaires (1) (2) mais percés, à l'une des extrémités, d'un trou qui les traverse de part en part perpendiculairement (3). A l'autre extrémité se trouve un canal de largeur correspondant au diamètre du trou précédent et long de quelques centimètres (4). Sur l'extrémité au trou simple de l'un des rails se trouvent un ou plusieurs plateaux (5) possédant en plus une roue dentée solidaire (6), de même axe de rotation, dont le diamètre est proche de la largeur du rail. La rotation s'effectue sur roulements. A l'autre extrémité du même rail se trouve une roue dentée libre (7). Elle est absolument identique et dans le même plan que la précédente. Ces deux roues dentées sont liées par une chaîne tendue (8) grâce à la roue dentée inférieure dont la distance à l'autre est réglable grâce au canal, un axe fileté aux extrémitées muni d'écrous assurant le maintient de la distance adéquate par serrage (non représenté). Entre les deux roues dentées montées sur roulement circule un chariot captif du rail (9). Ce chariot comporte sur chacun de ses deux bords une rangée de cliquets (10) (11) dans le même plan que les roues dentées et dans un alignement parallèle à la chaîne pour ne permettre à celle-ci qu'un seul sens d'évolution. La distance entre deux cliquets est identique à celle qui existe entre les deux points de rotation que comporte un maillon de la chaîne. Referring to these drawings, the device of the invention comprises two opposite rails, parallel and integral (1) (2) but drilled, at one end, of a hole which passes right through perpendicularly (3). At the other end is a channel of width corresponding to the diameter of the previous hole and a few centimeters long (4). On the single-hole end of one of the rails are one or more plates (5) having in addition a toothed gear (6) of the same axis of rotation, whose diameter is close to the width of the rail. The rotation is done on bearings. At the other end of the same rail is a free gear (7). It is absolutely identical and in the same plane as the previous one. These two toothed wheels are connected by a chain tensioned (8) thanks to the lower gear whose distance to the other is adjustable through the channel, a threaded shaft at the ends provided with nuts ensuring the maintenance of the proper distance by clamping (not shown) Between the two bearing-mounted gears circulates a towing carriage of the rail (9). This carriage has on each of its two edges a row of pawls (10) (11) in the same plane as the toothed wheels and in an alignment parallel to the chain to allow it only one direction of evolution . The distance between two pawls is identical to that between the two points of rotation that comprises a link in the chain.
L'orientation des cliquets est telle que les plateaux ne peuvent tourner que pour entraîner la roue arrière du vélo pour une marche en avant et chaque cliquet est pourvu d'un ressort qui l'amène en butée horizontale (12). Ce chariot est relié à un autre chariot (13) se trouvant sur l'autre rail par une corde (14) qui traverse les deux rails juste au- dessous des plateaux, sur une poulie (15). La corde est sertie à ses extrémitées et une cavité communicant avec un trou de vis perpendiculaire dans chaque chariot assure la fixation par pression (16) (17). La longueur de cette corde est telle que lorsqu'un des chariots se trouve à mi-course, l'autre s'y trouve également. L'ensemble est tenu dans les hauts d'un cadre de vélo par le même axe que celui des plateaux de façon à ce qu'un basculement longitudinal soit possible. Chaque chariot possède une 2867445 3 manivelle fixe orientée verticalement vers le bas (18) (19). Des butées (20) (21) sont matérialisées en bas de chaque rail. Les chariots sont munis de dispositifs de roulement (rouleaux, aiguilles ou billes) pour un travail en appui ou en traction. La corde sera préférentiellement en fibres exotiques (Kevlar, vectran...) pour limiter l'allongement. Elle pourra aussi être fixée aux chariots par deux simples noeuds. Le diamètre des plateaux est réduit par rapport à celui des pédaliers traditionnels en raison de la contre-démultiplication qu'opère le dispositif de l'invention au niveau desdits plateaux. The orientation of the pawls is such that the trays can rotate only to drive the rear wheel of the bike for a step forward and each pawl is provided with a spring which brings it in horizontal stop (12). This carriage is connected to another carriage (13) on the other rail by a rope (14) which passes through the two rails just below the trays on a pulley (15). The rope is crimped at its ends and a cavity communicating with a perpendicular screw hole in each carriage provides pressure attachment (16) (17). The length of this rope is such that when one of the trolleys is halfway, the other is also there. The assembly is held in the upper part of a bicycle frame by the same axis as the trays so that a longitudinal tilting is possible. Each carriage has a 2867445 3 fixed crank oriented vertically downward (18) (19). Stoppers (20) (21) are materialized at the bottom of each rail. The trolleys are equipped with rolling devices (rollers, needles or balls) for work in support or traction. The rope will preferably be in exotic fibers (Kevlar, Vectran ...) to limit elongation. It can also be fixed to the carriages by two simple knots. The diameter of the trays is reduced compared to that of the traditional cranks because of the counter-multiplication that operates the device of the invention at said trays.
A titre d'exemple non limitatif, le pédalier aura une longueur hors déploiement de 35 cm. Les matériaux sont ceux des autres pédaliers. By way of non-limiting example, the pedal will have a length off deployment of 35 cm. The materials are those of other cranks.
Le pédalier de l'invention est destiné à améliorer les 15 performances et le confort en cyclisme. The pedal of the invention is intended to improve performance and comfort in cycling.
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0402573A FR2867445A1 (en) | 2004-03-11 | 2004-03-11 | Vertical pedal assembly for bicycle, has two carriages, one having ratchets driving chain using toothed wheels, where one wheel is integrated to flanges and force is vertically exerted on carriages through cranks fixed on carriages |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0402573A FR2867445A1 (en) | 2004-03-11 | 2004-03-11 | Vertical pedal assembly for bicycle, has two carriages, one having ratchets driving chain using toothed wheels, where one wheel is integrated to flanges and force is vertically exerted on carriages through cranks fixed on carriages |
Publications (1)
Publication Number | Publication Date |
---|---|
FR2867445A1 true FR2867445A1 (en) | 2005-09-16 |
Family
ID=34896475
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR0402573A Withdrawn FR2867445A1 (en) | 2004-03-11 | 2004-03-11 | Vertical pedal assembly for bicycle, has two carriages, one having ratchets driving chain using toothed wheels, where one wheel is integrated to flanges and force is vertically exerted on carriages through cranks fixed on carriages |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR2867445A1 (en) |
-
2004
- 2004-03-11 FR FR0402573A patent/FR2867445A1/en not_active Withdrawn
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |
Effective date: 20051130 |