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République Algérienne Démocratique et Populaire
Ecole Nationale Supérieure De Technologie
Etude technique d’un vélo
Réalisé par:
BOULENOUAR Ichraf (G6)
Professeur : BELOUCHRANI.M
Année Universitaire:2020/2021
Un vélo:
ou bien un bicyclette est un
véhicule
terrestre constitué de deux
roues alignées, une à l'avant, une à l'arrière.
La roue avant est celle qui dirige l'engin,
grâce au guidon, alors que la roue arrière est
la roue motrice, c'est-à-dire celle qui fait
avancer la bicyclette.
Analyse fonctionnelle externe:
Le vélo doit être :
-Esthétique
-Manipulable guidé
-Résister aux obstacles
-Supporter des accessoires
-Résister au agressions du milieu ambiant
A un prix modéré
-Permettre au cycliste de se déplacer par rapport
au sol
Schéma de fonctionnement:
Généralement la fonction technique est:
+ « freiner »
«
« avancer »+ « diriger
Les composantes d’un vélo:
Le cadre.
Le guidon.
Le cintre.
La transmission.
la selle.
Roues et pneus
Les composantes de vélo:
Le cadre:
est le squelette du vélo, la partie qui en tient tous les
principaux éléments. Il est traditionnellement constitué de deux
triangles.
Le triangle avant :dans lequel on retrouve le tube supérieur, le
tube de selle, le tube diagonal et le boîtier de pédalier.
Le triangle arrière: qui relie le pédalier et la selle à la roue arrière
grâce aux haubans. On y retrouve également les bases, les butées
de gaine et les pattes de cadre
Le guidon
est l’organe de direction du vélo. Il est
formé par le cintre et la potence.
Le cintre :
est la partie allongée qui, une fois associée
à la potence, forme le guidon du vélo. Il existe
différents types de cintre selon l'utilisation que
l'on veut donner à son vélo.
Le freinage:
Les vélos et bicyclettes doivent être munis d’au
moins deux systèmes de freinage indépendants
agissant chacun sur une roue différente
La selle de vélo:
Roues et pneus:
Tube courbé refermé sur lui-même composé de
gomme et de divers matériaux qui encadre la jante
et permet le contact entre le sol et le vélo. Les
matériaux composant un pneu :
Agents anti-vieillissement ; Huile et graisse; Soufre ;
Pigments et colorants ; Caoutchouc

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presentation d'un vélo avec les fonctionnalitées.pptx

  • 1. République Algérienne Démocratique et Populaire Ecole Nationale Supérieure De Technologie Etude technique d’un vélo Réalisé par: BOULENOUAR Ichraf (G6) Professeur : BELOUCHRANI.M Année Universitaire:2020/2021
  • 2. Un vélo: ou bien un bicyclette est un véhicule terrestre constitué de deux roues alignées, une à l'avant, une à l'arrière. La roue avant est celle qui dirige l'engin, grâce au guidon, alors que la roue arrière est la roue motrice, c'est-à-dire celle qui fait avancer la bicyclette.
  • 3. Analyse fonctionnelle externe: Le vélo doit être : -Esthétique -Manipulable guidé -Résister aux obstacles -Supporter des accessoires -Résister au agressions du milieu ambiant A un prix modéré -Permettre au cycliste de se déplacer par rapport au sol
  • 4. Schéma de fonctionnement: Généralement la fonction technique est: + « freiner » « « avancer »+ « diriger
  • 5. Les composantes d’un vélo: Le cadre. Le guidon. Le cintre. La transmission. la selle. Roues et pneus
  • 6. Les composantes de vélo: Le cadre: est le squelette du vélo, la partie qui en tient tous les principaux éléments. Il est traditionnellement constitué de deux triangles. Le triangle avant :dans lequel on retrouve le tube supérieur, le tube de selle, le tube diagonal et le boîtier de pédalier. Le triangle arrière: qui relie le pédalier et la selle à la roue arrière grâce aux haubans. On y retrouve également les bases, les butées de gaine et les pattes de cadre
  • 7. Le guidon est l’organe de direction du vélo. Il est formé par le cintre et la potence.
  • 8. Le cintre : est la partie allongée qui, une fois associée à la potence, forme le guidon du vélo. Il existe différents types de cintre selon l'utilisation que l'on veut donner à son vélo.
  • 9. Le freinage: Les vélos et bicyclettes doivent être munis d’au moins deux systèmes de freinage indépendants agissant chacun sur une roue différente
  • 10. La selle de vélo:
  • 11. Roues et pneus: Tube courbé refermé sur lui-même composé de gomme et de divers matériaux qui encadre la jante et permet le contact entre le sol et le vélo. Les matériaux composant un pneu : Agents anti-vieillissement ; Huile et graisse; Soufre ; Pigments et colorants ; Caoutchouc