FR2765548A1 - Bicycle for prone user - Google Patents
Bicycle for prone user Download PDFInfo
- Publication number
- FR2765548A1 FR2765548A1 FR9708531A FR9708531A FR2765548A1 FR 2765548 A1 FR2765548 A1 FR 2765548A1 FR 9708531 A FR9708531 A FR 9708531A FR 9708531 A FR9708531 A FR 9708531A FR 2765548 A1 FR2765548 A1 FR 2765548A1
- Authority
- FR
- France
- Prior art keywords
- wheel
- rear wheel
- handlebar
- axis
- frame
- 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- Withdrawn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
- B62K—CYCLES; CYCLE FRAMES; CYCLE STEERING DEVICES; RIDER-OPERATED TERMINAL CONTROLS SPECIALLY ADAPTED FOR CYCLES; CYCLE AXLE SUSPENSIONS; CYCLE SIDE-CARS, FORECARS, OR THE LIKE
- B62K3/00—Bicycles
- B62K3/005—Recumbent-type bicycles
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Steering Devices For Bicycles And Motorcycles (AREA)
Abstract
Description
La présente invention concerne une nouvelle architecture de bicyclette et en précise les caractéristiques techniques. The present invention relates to a new bicycle architecture and specifies its technical characteristics.
En effet, les bicyclettes actuelles concilient très mal les problèmes de transmission de l'énergie a la roue, de l'ergonomie du vélo (qui limite la facilité respiratoire et fatigue le dos), et de l'aérodynamique du cycliste. D'autre part, pour le cas particulier de la transmission de l'énergie à la roue, on constate que celle-ci nécessite une chaine qui absorbe une fraction de l'énergie et introduit un poids supplémentaire. De plus, le point d'application du couple moteur se situe sur le cadre dont la déformation détourne aussi une partie de l'énergie. Indeed, current bicycles very poorly reconcile the problems of transmission of energy to the wheel, ergonomics of the bicycle (which limits breathing ease and tires the back), and aerodynamics of the cyclist. On the other hand, for the particular case of the transmission of energy to the wheel, it can be seen that the latter requires a chain which absorbs a fraction of the energy and introduces an additional weight. In addition, the point of application of the engine torque is located on the frame, the deformation of which also diverts part of the energy.
Face à ces problèmes, certains concepteurs ont proposé de modifier diverses caractéristiques des bicyclettes, en particulier la position habituelle du cycliste: il prendrait une position plus ou moins couchée vers l'arrière, jambes devant lui. Faced with these problems, some designers have proposed to modify various characteristics of bicycles, in particular the usual position of the cyclist: he would take a position more or less lying backwards, legs in front of him.
Néanmoins, si cette configuration est susceptible d'apporter quelque avantage, par exemple ergonomique, elle est mécaniquement très complexe.However, if this configuration is likely to bring some advantage, for example ergonomic, it is mechanically very complex.
La présente invention permet de remédier à ces problèmes en définissant, d'une part, une position plus ergonomique et aérodynamique que sur un vélo classique et, d'autre part, en rationnalisant la transmission. The present invention overcomes these problems by defining, on the one hand, a more ergonomic and aerodynamic position than on a conventional bicycle and, on the other hand, by streamlining the transmission.
La présente invention décrit une nouvelle architecture de vélo dans laquelle le cycliste est allongé vers l'avant sur le vélo, ses épaules à la hauteur de la roue avant, ses bras de chaque côté de la roue avant, ses jambes de chaque côté de la roue arrière. The present invention describes a new bicycle architecture in which the cyclist is lying forward on the bicycle, his shoulders at the height of the front wheel, his arms on each side of the front wheel, his legs on each side of the rear wheel.
Dans cette position, le mouvement des jambes est transmis directement à la roue arrière par l'intermédiaire des pédales et bielles habituelles, mais sans utiliser de chaîne; et l'axe autour duquel tournent les pieds du cycliste est confondu avec l'axe de la roue arrière. La transmission du mouvement du pédalier à la roue arrière ainsi que la modification des rapports de vitesse sont réalisés à l'aide d'un ensemble d'engrenages situés dans le périmètre de la roue arrière. In this position, the movement of the legs is transmitted directly to the rear wheel via the usual pedals and connecting rods, but without using a chain; and the axis around which the cyclist's feet rotate is coincident with the axis of the rear wheel. The transmission of the movement from the crankset to the rear wheel as well as the modification of the gear ratios are carried out using a set of gears located in the perimeter of the rear wheel.
Le cycliste repose alors sur les appuis suivants: les deux pédales, une selle, deux appui-coudes; et ses mains tiennent les cornes du guidon. The cyclist then rests on the following supports: the two pedals, a saddle, two elbow pads; and his hands hold the horns of the handlebars.
La particularité du guidon est de se situer à proximité de l'axe de la roue avant, et chaque branche de ce guidon est solidaire d'une branche de la fourche. C'est sur ce guidon que sont placés les appui-coudes ainsi que, classiquement, les commandes des freins et de changement des rapports de vitesse. The special feature of the handlebars is that they are located near the axis of the front wheel, and each branch of this handlebar is integral with a branch of the fork. It is on this handlebar that the elbow rests are placed as well as, conventionally, the brake controls and the change of gear ratios.
Les dessins annexés illustrent l'invention. La figure 1 présente une vue de profil du vélo et la figure 2 précise la position du cycliste sur ce vélo. The accompanying drawings illustrate the invention. Figure 1 shows a profile view of the bike and Figure 2 specifies the position of the cyclist on this bike.
En référence à ces dessins, le vélo dispose de deux roues, la roue avant étant maintenue au cadre (1) par une fourche pivotante (2) dont l'extrémité supérieure ne dépasse pas du cadre. Le cadre (1) est constitué, dans son principe, d'un tube qui relie directement le pivot de la fourche avant (2) à l'axe de la roue arrière. Le cadre se dédouble à proximité de cette roue pour prendre la forme d'un "U" (3). With reference to these drawings, the bicycle has two wheels, the front wheel being held at the frame (1) by a pivoting fork (2) whose upper end does not protrude from the frame. The frame (1) consists, in principle, of a tube which directly connects the pivot of the front fork (2) to the axis of the rear wheel. The frame splits close to this wheel to take the form of a "U" (3).
A ce cadre est simplement ajoutée une selle (4) dont le dessin particulier permet de maintenir confortablement le cycliste dans la position décrite, c'est à dire presque horizontale. To this frame is simply added a saddle (4) whose particular design makes it possible to comfortably maintain the cyclist in the position described, that is to say almost horizontal.
Sur chaque barre de la fourche est fixé un demi-guidon (5). Chaque demi-guidon comprend un tube principal (6) recourbé à sa partie avant pour assurer la prise en main. A l'arrière de ce tube principal est ajusté un appui-coude (7). Le tube (6) est relié à la fourche (2) au moyen d'une entretoise métallique qui permet d'assurer l'aplomb du coude à l'épaule. On each fork bar is fixed a half handlebar (5). Each half-handlebar includes a main tube (6) curved at its front part to ensure grip. At the rear of this main tube is adjusted an elbow support (7). The tube (6) is connected to the fork (2) by means of a metal spacer which ensures the plumb from the elbow to the shoulder.
Les fixations de la selle (4) et du guidon (5) permettent un réglage des différentes distances afin de les adapter aux gabarits de chaque personne. The saddle (4) and handlebar (5) attachments allow adjustment of the different distances in order to adapt them to the size of each person.
L'énergie musculaire est directement transmise à la roue arrière par l'intermédiaire d'un pédalier (8) dont l'axe de rotation sera celui de la roue arrière. The muscular energy is directly transmitted to the rear wheel via a pedal (8) whose axis of rotation will be that of the rear wheel.
Pour permettre la transmission du mouvement ainsi que la modification des rapports de vitesse, la présente invention prévoit un ensemble d'engrenages placés dans le périmètre de la roue arrière. Le mécanisme de ces engrenages permet aussi la fonction de "roue libre". To allow the transmission of movement as well as the modification of the speed ratios, the present invention provides a set of gears placed in the perimeter of the rear wheel. The mechanism of these gears also allows the function of "free wheel".
Les freins avant et arrière restent présents dans cette architecture, contrôlés à partir de manettes (9) au guidon (5). The front and rear brakes remain present in this architecture, controlled from levers (9) on the handlebars (5).
Les manettes de changement des vitesses seront aussi placées au guidon.The shifters will also be placed on the handlebars.
Selon un mode de réalisation, la roue avant peut recevoir une protection circulaire de manière à éviter que le cycliste ne prenne ses doigts dans les rayons. Selon un autre mode de réalisation, le système de transmission pourra être sans roue libre et avec une seule vitesse. According to one embodiment, the front wheel can receive circular protection so as to prevent the cyclist from taking his fingers in the spokes. According to another embodiment, the transmission system can be without free wheel and with a single speed.
Selon un troisième mode de réalisation, le cadre sera constitué d'une barre de section avantageusement ovale; et un point d'appui de la poitrine pourra être placé à l'avant du cadre. According to a third embodiment, the frame will consist of a bar of advantageously oval section; and a chest support point can be placed in front of the frame.
Claims (9)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9708531A FR2765548A1 (en) | 1997-07-04 | 1997-07-04 | Bicycle for prone user |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9708531A FR2765548A1 (en) | 1997-07-04 | 1997-07-04 | Bicycle for prone user |
Publications (1)
Publication Number | Publication Date |
---|---|
FR2765548A1 true FR2765548A1 (en) | 1999-01-08 |
Family
ID=9508895
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR9708531A Withdrawn FR2765548A1 (en) | 1997-07-04 | 1997-07-04 | Bicycle for prone user |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR2765548A1 (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2904961A1 (en) * | 2006-08-21 | 2008-02-22 | Gilles Lalanne | Bicycle, has pelvis support to receive front portion of pelvis and placed above top of front and rear wheels, pedal assembly located behind or above axle of rear wheel, and chest support to receive sternum and collar-bones |
ITMO20130346A1 (en) * | 2013-12-17 | 2015-06-18 | Andrea Lusetti | VARIABLE BICYCLE |
WO2021062502A1 (en) * | 2019-10-03 | 2021-04-08 | Pascoal Da Silva Morgado | Improved reclining bicycle frame |
JP2023520242A (en) * | 2020-10-20 | 2023-05-16 | キム,ミンホ | bicycle |
-
1997
- 1997-07-04 FR FR9708531A patent/FR2765548A1/en not_active Withdrawn
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2904961A1 (en) * | 2006-08-21 | 2008-02-22 | Gilles Lalanne | Bicycle, has pelvis support to receive front portion of pelvis and placed above top of front and rear wheels, pedal assembly located behind or above axle of rear wheel, and chest support to receive sternum and collar-bones |
ITMO20130346A1 (en) * | 2013-12-17 | 2015-06-18 | Andrea Lusetti | VARIABLE BICYCLE |
WO2021062502A1 (en) * | 2019-10-03 | 2021-04-08 | Pascoal Da Silva Morgado | Improved reclining bicycle frame |
JP2023520242A (en) * | 2020-10-20 | 2023-05-16 | キム,ミンホ | bicycle |
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ST | Notification of lapse |