FR2968054A1 - Cyclovariator for varying speed of bicycle, has set of front cones, and set of rear cones that function in symmetry, drive nut that is tightened against frame of bicycle, and spring pushing one of rear cones towards another rear cone - Google Patents

Cyclovariator for varying speed of bicycle, has set of front cones, and set of rear cones that function in symmetry, drive nut that is tightened against frame of bicycle, and spring pushing one of rear cones towards another rear cone Download PDF

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Publication number
FR2968054A1
FR2968054A1 FR1004608A FR1004608A FR2968054A1 FR 2968054 A1 FR2968054 A1 FR 2968054A1 FR 1004608 A FR1004608 A FR 1004608A FR 1004608 A FR1004608 A FR 1004608A FR 2968054 A1 FR2968054 A1 FR 2968054A1
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FR
France
Prior art keywords
cones
bicycle
cone
cyclovariator
symmetry
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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Withdrawn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
FR1004608A
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French (fr)
Inventor
Regis Machicote
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Individual
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Individual
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Publication date
Application filed by Individual filed Critical Individual
Priority to FR1004608A priority Critical patent/FR2968054A1/en
Publication of FR2968054A1 publication Critical patent/FR2968054A1/en
Withdrawn legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H9/00—Gearings for conveying rotary motion with variable gear ratio, or for reversing rotary motion, by endless flexible members
    • F16H9/02—Gearings for conveying rotary motion with variable gear ratio, or for reversing rotary motion, by endless flexible members without members having orbital motion
    • F16H9/04—Gearings for conveying rotary motion with variable gear ratio, or for reversing rotary motion, by endless flexible members without members having orbital motion using belts, V-belts, or ropes
    • F16H9/12—Gearings for conveying rotary motion with variable gear ratio, or for reversing rotary motion, by endless flexible members without members having orbital motion using belts, V-belts, or ropes engaging a pulley built-up out of relatively axially-adjustable parts in which the belt engages the opposite flanges of the pulley directly without interposed belt-supporting members
    • F16H9/16—Gearings for conveying rotary motion with variable gear ratio, or for reversing rotary motion, by endless flexible members without members having orbital motion using belts, V-belts, or ropes engaging a pulley built-up out of relatively axially-adjustable parts in which the belt engages the opposite flanges of the pulley directly without interposed belt-supporting members using two pulleys, both built-up out of adjustable conical parts
    • F16H9/18—Gearings for conveying rotary motion with variable gear ratio, or for reversing rotary motion, by endless flexible members without members having orbital motion using belts, V-belts, or ropes engaging a pulley built-up out of relatively axially-adjustable parts in which the belt engages the opposite flanges of the pulley directly without interposed belt-supporting members using two pulleys, both built-up out of adjustable conical parts only one flange of each pulley being adjustable
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H9/00—Gearings for conveying rotary motion with variable gear ratio, or for reversing rotary motion, by endless flexible members
    • F16H9/02—Gearings for conveying rotary motion with variable gear ratio, or for reversing rotary motion, by endless flexible members without members having orbital motion
    • F16H9/04—Gearings for conveying rotary motion with variable gear ratio, or for reversing rotary motion, by endless flexible members without members having orbital motion using belts, V-belts, or ropes
    • F16H9/12—Gearings for conveying rotary motion with variable gear ratio, or for reversing rotary motion, by endless flexible members without members having orbital motion using belts, V-belts, or ropes engaging a pulley built-up out of relatively axially-adjustable parts in which the belt engages the opposite flanges of the pulley directly without interposed belt-supporting members
    • F16H9/16—Gearings for conveying rotary motion with variable gear ratio, or for reversing rotary motion, by endless flexible members without members having orbital motion using belts, V-belts, or ropes engaging a pulley built-up out of relatively axially-adjustable parts in which the belt engages the opposite flanges of the pulley directly without interposed belt-supporting members using two pulleys, both built-up out of adjustable conical parts
    • F16H9/20—Gearings for conveying rotary motion with variable gear ratio, or for reversing rotary motion, by endless flexible members without members having orbital motion using belts, V-belts, or ropes engaging a pulley built-up out of relatively axially-adjustable parts in which the belt engages the opposite flanges of the pulley directly without interposed belt-supporting members using two pulleys, both built-up out of adjustable conical parts both flanges of the pulleys being adjustable

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Transmissions By Endless Flexible Members (AREA)

Abstract

The variator has a set of front cones (3, 4) and a set of rear cones (7, 8), that functions in symmetry. A drive nut (2) is tightened against a frame (1) of a bicycle. A spring (10) pushes one of the rear cones towards another rear cone that is interdependent of an axis (9) of a wheel of the bicycle. The drive nut is loosened by a control unit that is provided in a handlebar for allowing the bicycle to move in a higher speed.

Description

Le cyclovariateur est conçu dans un premier temps pour les bicyclettes. Mais il pourra par la suite être appliqué à tout mécanisme nécessitant une variation de vitesse. The cyclovariator is initially designed for bicycles. But it can subsequently be applied to any mechanism requiring a variation of speed.

Dans les vélos à vitesse classiques on change de rapport en changeant de plateau à l'avant ou de pignon à l'arrière, ce qui nécessite deux commandes. Pour les débutants, la première confusion est laquelle actionner et dans quel sens. En effet pour augmenter la vitesse on doit passer à un plateau plus grand ou un pignon plus petit. Ensuite, chaque changement de braquet provoque un choc dans les jambes dû au changement de résistance en montant les rapport et la sensation de vide en les descendant. Pour réduire ses acoups déséquilibrants on augmente généralement le nombre de plateaux et de pignons. Mais certains rapports font double emploi et d'autres sont fortement déconseillés car ils risquent de rompre la chaîne à cause du croisement. Ou bien simplement de dérailler. In conventional speed bikes you change gear by changing the front or rear sprocket, which requires two controls. For beginners, the first confusion is which to operate and in which direction. Indeed to increase the speed one has to move to a bigger plateau or a smaller gear. Then, each change of gear causes a shock in the legs due to the change of resistance by raising the report and the sensation of emptiness by descending them. To reduce its imbalancing wolves, the number of trays and gables is generally increased. But some reports are duplicative and others are strongly discouraged because they may break the chain because of the crossing. Or simply to derail.

Dans le cyclovariateur, une seule commande permet de changer de vitesse. Les mécanismes à cônes en tête-bêche permettent une variation très fluide et un très grand nombre de rapports utilisables dans sa totalité. La transmission de la force du mécanisme variateur avant au variateur arrière sera une courroie ou un câble gainé ou pas suivant les utilisations : piste, route, tout-terrain, ... Cette transmission reste tout le temps alignée aux variateurs grâce à leur fonctionnement symétrique. Puis elle reste tendue grâce au ressort du variateur arrière. In the cyclovariator, a single command can change speed. The mechanisms with cone head-to-tail allow a very fluid variation and a very large number of usable reports in its entirety. The transmission of the force of the front variator mechanism to the rear variator will be a belt or cable sheathed or not according to the uses: track, road, off-road, ... This transmission remains all the time aligned with the variators thanks to their symmetrical operation . Then it stays taut thanks to the spring of the rear variator.

Les dessins annexés illustrent l'invention : - La figure 1 représente le dispositif en petite vitesse. - La figure 2 représente le dispositif en grande vitesse. The accompanying drawings illustrate the invention: - Figure 1 shows the device in low speed. - Figure 2 shows the device in high speed.

En référence à la figure 1, en petite vitesse, l'écrou de commande (2) est serré contre le cadre (1) du vélo. Le cône (3) est éloigné du cône (4) qui est solidaire de l'axe (5) du pédalier. La transmission (6) passe donc au petit diamètre du variateur avant (3,4). Cette transmission (6) passe donc au grand diamètre du variateur arrière (7,8) puisque le ressort (10) pousse le cône (7) vers le cône (8) qui est solidaire de l'axe (9) de la roue. Pour passer vers une plus grande vitesse comme sur la figure 2 on desserre l'écrou (2) du cadre (1) par une commande au guidon non représentée. L'écrou (2) pousse alors le cône (3) vers le cône (4). Ceci amène la transmission (6) à passer au grand diamètre du variateur avant (3,4). La transmission (6) ainsi tirée vers l'avant écarte le cône (7) du cône (8) en comprimant le ressort (10). Pour redescendre de rapport, on resserre l'écrou (2). Le ressort (10) se détend alors progressivement. Referring to Figure 1, at low speed, the control nut (2) is tight against the frame (1) of the bicycle. The cone (3) is remote from the cone (4) which is integral with the axis (5) of the crankset. The transmission (6) therefore goes to the small diameter of the front variator (3,4). This transmission (6) therefore goes to the large diameter of the rear variator (7,8) since the spring (10) pushes the cone (7) to the cone (8) which is integral with the axis (9) of the wheel. To move to a higher speed as in Figure 2 is loosened the nut (2) of the frame (1) by a control handlebar not shown. The nut (2) then pushes the cone (3) towards the cone (4). This causes the transmission (6) to pass to the large diameter of the front variator (3,4). The transmission (6) thus pulled forward spreads the cone (7) of the cone (8) by compressing the spring (10). To lower the ratio, tighten the nut (2). The spring (10) then relaxes gradually.

Grâce à sa simplicité et au nombre réduits de pièces mécaniques, le cyclovariateur aura un coût de fabrication, d'entretien, de maintenance et de réparation nettement inférieur aux autres systèmes du marché. Les dimensions des pièces et les matériaux dont elles seront fabriquées varieront en fonction des domaines d'application destinés : les différentes disciplines cyclistes, mais aussi des cyclomoteurs ou des moteurs à boîte de vitesse. Le cyclovariateur est une boîte de vitesses parmi les plus souples, sinon la plus souple. Thanks to its simplicity and reduced number of mechanical parts, the cyclovariator will have a cost of manufacturing, maintenance, maintenance and repair much lower than other systems on the market. The dimensions of the parts and the materials they will be manufactured will vary according to the intended application areas: the different cycling disciplines, but also mopeds or gearbox motors. The cyclovariator is one of the most flexible gearboxes, if not the most flexible.

Claims (2)

REVENDICATIONS1) Dispositif de variation caractérisé en ce qu'il comporte deux variateurs avant (3,4) et arrière (7,8) fonctionnant en symétrie. CLAIMS1) Variation device characterized in that it comprises two front drives (3,4) and rear (7,8) operating symmetry. 2) Dispositif de variation selon la revendication 1 caractérisé en ce que les variateurs comportent chacun deux cônes en tête-bêche. 2) Variation device according to claim 1 characterized in that the drives each comprise two cones head to tail.
FR1004608A 2010-11-29 2010-11-29 Cyclovariator for varying speed of bicycle, has set of front cones, and set of rear cones that function in symmetry, drive nut that is tightened against frame of bicycle, and spring pushing one of rear cones towards another rear cone Withdrawn FR2968054A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR1004608A FR2968054A1 (en) 2010-11-29 2010-11-29 Cyclovariator for varying speed of bicycle, has set of front cones, and set of rear cones that function in symmetry, drive nut that is tightened against frame of bicycle, and spring pushing one of rear cones towards another rear cone

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1004608A FR2968054A1 (en) 2010-11-29 2010-11-29 Cyclovariator for varying speed of bicycle, has set of front cones, and set of rear cones that function in symmetry, drive nut that is tightened against frame of bicycle, and spring pushing one of rear cones towards another rear cone

Publications (1)

Publication Number Publication Date
FR2968054A1 true FR2968054A1 (en) 2012-06-01

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
FR1004608A Withdrawn FR2968054A1 (en) 2010-11-29 2010-11-29 Cyclovariator for varying speed of bicycle, has set of front cones, and set of rear cones that function in symmetry, drive nut that is tightened against frame of bicycle, and spring pushing one of rear cones towards another rear cone

Country Status (1)

Country Link
FR (1) FR2968054A1 (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2141209A5 (en) * 1971-06-07 1973-01-19 Instrument Systems Corp
GB1541282A (en) * 1976-01-23 1979-02-28 Gilbert R B Encapsulated transmission unit
FR2759665A1 (en) * 1997-02-14 1998-08-21 Hotel Francois L Automatic transmission for bicycle
JP2010164096A (en) * 2009-01-14 2010-07-29 Mitsuboshi Belting Ltd Automatic transmission device

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2141209A5 (en) * 1971-06-07 1973-01-19 Instrument Systems Corp
GB1541282A (en) * 1976-01-23 1979-02-28 Gilbert R B Encapsulated transmission unit
FR2759665A1 (en) * 1997-02-14 1998-08-21 Hotel Francois L Automatic transmission for bicycle
JP2010164096A (en) * 2009-01-14 2010-07-29 Mitsuboshi Belting Ltd Automatic transmission device

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Effective date: 20150731