FR2483349A1 - Short wheel base competition bicycle - has wheels of 580 milli-metre dia. and reduced overall wheelbase with shorter chain - Google Patents

Short wheel base competition bicycle - has wheels of 580 milli-metre dia. and reduced overall wheelbase with shorter chain Download PDF

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Publication number
FR2483349A1
FR2483349A1 FR8011768A FR8011768A FR2483349A1 FR 2483349 A1 FR2483349 A1 FR 2483349A1 FR 8011768 A FR8011768 A FR 8011768A FR 8011768 A FR8011768 A FR 8011768A FR 2483349 A1 FR2483349 A1 FR 2483349A1
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FR
France
Prior art keywords
wheels
bicycle
milli
metre
dia
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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Withdrawn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
FR8011768A
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French (fr)
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DIET FRANCIS
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DIET FRANCIS
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Publication date
Application filed by DIET FRANCIS filed Critical DIET FRANCIS
Priority to FR8011768A priority Critical patent/FR2483349A1/en
Publication of FR2483349A1 publication Critical patent/FR2483349A1/en
Withdrawn legal-status Critical Current

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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

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Nitrogen Condensed Heterocyclic Rings (AREA)

Abstract

The competition bicycle has two wheels of 580mm diameter. This has a suitable frame and all the equipment of a traditional bicycle. The weight is reduced due to the use of less material. The machine has better aerodynamics due to the shorter wheelbase. The reduced size also enables cyclists of small stature to adopt a riding position normally only achieved on normal bicycles by riders of large stature. The distance between the pedal shaft and the front and rear axles are both reduced, resulting in overall shortening.

Description

La pressente invention concerne les instruments du type - bicyclette vésicule à deux roues d'égal diamètre, dent la roue arrière est actionnée par un système de pédales agissant sur une chaine, permettant un ment à plus ou moins rande vitesse et étant utilisé en compétitions spor- tives. The present invention relates to instruments of the type - bicycle vesicle with two wheels of equal diameter, tooth the rear wheel is actuated by a system of pedals acting on a chain, allowing a more or less high speed and being used in sports competitions - tives.

Dans le montage de bicyclettes de compétition connues de ce genre et traditionnelles, le diametre des roues utilises est de 680 millimètres. In the assembly of known and traditional competition bicycles, the diameter of the wheels used is 680 millimeters.

Beaucoup de recherches actuelles pour leamélioration de différents atouts de rentabilité des bicyclettes sportives, se trouvent bloquées de par l'utilisation même de ce diamètre de roues.Many current researches for the improvement of various advantages of profitability of sports bicycles, are blocked by the very use of this diameter of wheels.

La bicyclette, selon l'invention, permet de solutionner aisément ces problèmes de rendement de l'utilisation du véhicule en compétition. Elle est, en effet, montée sur deux roues d'un diamètre de 580 millimètres le cadre étant adapté à ce diamètre. The bicycle according to the invention makes it possible to easily resolve these problems of efficiency in the use of the vehicle in competition. It is, in fact, mounted on two wheels with a diameter of 580 millimeters, the frame being adapted to this diameter.

Selon une première variante, le diamètre des roues de cette bicyclet- te étant de 580 millimètres, les deux entres-axes : axe de pédalier/axes de roues, se trouvent diminués, d'ou une meilleure pénétration dans l'air et un rendement meilleur, dû à la position du cycliste, raprochée de l'axe de la roue arrière.  According to a first variant, the diameter of the wheels of this bicycle being 580 millimeters, the two inter-axes: bottom bracket / wheel axles, are reduced, resulting in better penetration in the air and a yield better, due to the position of the cyclist, close to the axis of the rear wheel.

De plus, selon cette variante, le poids, des roues moins grandes, et du cadre lui aussi ramené à une taille inférieure, se trouve largement di- minué. In addition, according to this variant, the weight, of the smaller wheels, and of the frame, also reduced to a smaller size, is greatly reduced.

Le montage de la bidyclette, tel qu'il est présenté selon l'invention, permet en outre aux cyclistes de petite taille de trouver la même position aérodynamique idéale à laquelle ne parviennent actuellement que les cyclistes de grande taille. The mounting of the bidyclette, as presented according to the invention, also allows small cyclists to find the same ideal aerodynamic position which only large cyclists currently achieve.

Les applications particulièrement intéressantes peuvent entre l1utili- sation de cette bicyclette dans le cadre de compétitions -contre la montre- ou - de montagne-.  Particularly interesting applications can between the use of this bicycle in the context of competitions - against the clock - or - in the mountains.

Claims (4)

REVENDICATIONS 1. Bicyclette de compétition conçue avec deux roues d'un diar..re.de 580 millimètres, un cadre adapté, et tout l'équipement d'une bicyclette traditionnelle. 1. Competition bicycle designed with two wheels of a diameter of 580 millimeters, a suitable frame, and all the equipment of a traditional bicycle. 2. Bicyclette selon la revendication 1 caractérisée par le gain de poids dû au moins de matière. 2. Bicycle according to claim 1 characterized by the weight gain due to at least material. 3. Bicyclette d'une meilleure pénétration dans l'air de part la diminution de l'entre-axe : axe de pédalier/axe de roue avant. 3. A bicycle with better air penetration due to the reduction in the center distance: bottom bracket axle / front wheel axle. 4. Bicyclette d'un meilleur rendement de part la diminution de ltencre- axe : axe de pédalier/axe de roue arrière.  4. A bicycle with better performance due to the reduction in axle-axle: crankset axle / rear wheel axle.
FR8011768A 1980-05-27 1980-05-27 Short wheel base competition bicycle - has wheels of 580 milli-metre dia. and reduced overall wheelbase with shorter chain Withdrawn FR2483349A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR8011768A FR2483349A1 (en) 1980-05-27 1980-05-27 Short wheel base competition bicycle - has wheels of 580 milli-metre dia. and reduced overall wheelbase with shorter chain

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8011768A FR2483349A1 (en) 1980-05-27 1980-05-27 Short wheel base competition bicycle - has wheels of 580 milli-metre dia. and reduced overall wheelbase with shorter chain

Publications (1)

Publication Number Publication Date
FR2483349A1 true FR2483349A1 (en) 1981-12-04

Family

ID=9242385

Family Applications (1)

Application Number Title Priority Date Filing Date
FR8011768A Withdrawn FR2483349A1 (en) 1980-05-27 1980-05-27 Short wheel base competition bicycle - has wheels of 580 milli-metre dia. and reduced overall wheelbase with shorter chain

Country Status (1)

Country Link
FR (1) FR2483349A1 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0142848A2 (en) * 1983-11-18 1985-05-29 Fami S.R.L. Process for framing bicycles
WO1998009866A1 (en) * 1996-09-05 1998-03-12 Ernesto Farina Bicycle and the like with chain transmission, multiple gears and pedal unit placed on the outside of the rear wheel
US6086079A (en) * 1996-09-05 2000-07-11 Farina; Ernesto Bicycle and the like with chain transmission, multiple gears and pedal unit placed on the outside of the rear wheel
US6595535B2 (en) 1998-07-22 2003-07-22 E.R.L. Invenzioni S.R.L. Bicycle or the like

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0142848A2 (en) * 1983-11-18 1985-05-29 Fami S.R.L. Process for framing bicycles
EP0142848A3 (en) * 1983-11-18 1985-07-03 Fami S.R.L. Process for framing bicycles
WO1998009866A1 (en) * 1996-09-05 1998-03-12 Ernesto Farina Bicycle and the like with chain transmission, multiple gears and pedal unit placed on the outside of the rear wheel
US6086079A (en) * 1996-09-05 2000-07-11 Farina; Ernesto Bicycle and the like with chain transmission, multiple gears and pedal unit placed on the outside of the rear wheel
US6595535B2 (en) 1998-07-22 2003-07-22 E.R.L. Invenzioni S.R.L. Bicycle or the like

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