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Bicycle derailleur mechanism |
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Structure of mechanism |
| Function |
The aim of this system is to propose a simple shifting track mechanism, being used as well as back shifting track as front shifting track, whose cost price would be better and the assembly facilitates because of a reduced number of parts compare to conventionals shifting track systems. The actuator part (mobile) is link on the one hand by a connection pivot on a rod (mobile) actionnee by cable (not representee in CFAO), and on the other hand, via a pin has a hole pertaining circular hops has a fixed part of the mechanism, link to the bicycle. By default a spring (not represents in CFAO) locates between the rod and this fixed part makes raise the commandee part of the rod, reserve actually by the cable in tension. To tend of advantage the cable brings back the lever of the rod to the bottom, drawing aside the actuator which switches the chain on a larger plate (or a smaller pinion) |
| Comment |
Author : Marc Tabouret
Modified by : Khaled-Assad ARROUK
IFMA (French Institute for Advanced Mechanics) - http://www.ifma.fr
Clermont-Ferrand, France
This model was generated to explain a certain patent in more detail.
The model and all attached items were made within this context. |
| Dimension of mechanism |
planar |
| Number of links |
13 |
| Drive movement |
Rotation superposed by rectilinear translation |
| Degree of freedom |
2 |
| Fundamental mechanism |
 Link containing mechanism |
| Number of inputs |
1 |
| Number of followers |
2 |
| Revolution ability |
yes |
| Revolution ability of input link |
yes |
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Application |
| Application area |
Transport/Traffic |
| Examples of application |
Bicycle shifting track |
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| Permanent links |
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| Data provider |
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| Administration |
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| Location |
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IFMA (French Institute for Advanced Mechanics) |
| Producer |
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Marc Tabouret |
| Persons |
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editor: Cousturier, Richard (Ed.)
creator: Tabouret, Marc |
| Date of production |
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September 2010 - January 2011 |
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| Further media formats |
 Animations |
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 CAX files |
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 Documents |
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 Videos |
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 Images |
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Newsletter
DMG-Lib
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IFMA
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