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Mecanismo de bicicletas para alta superposición de los períodos de potencia de pedaleo y eliminación completa de los centros muertos superior e inferior del recorrido del pedal

Resumen

Tipo:
Oferta Tecnológica
Referencia:
TOGR20180619001
Publicado:
16/07/2018
Caducidad:
17/07/2019
Resumen:
Un laboratorio griego especializado en mecanismos mecánicos puros ha desarrollado un mecanismo de transmisión de potencia para bicicletas que elimina completamente los centros muertos superior e inferior del recorrido del pedal y permite una alta superposición de los períodos de potencia del pedaleo. Este mecanismo puede adaptarse a cualquier tipo de bicicleta, tanto existentes como de nuevo diseño. También ha desarrollado una nueva metodología de construcción geométrica y fabricación mediante CNC de los piñones, que se traduce en un aumento de la eficiencia. El laboratorio busca un fabricante de bicicletas con el fin de establecer acuerdos de financiación o licencia.

Details

Tittle:
Bicycle mechanism for high overlapping of pedal power periods and complete elimination of top and bottom dead centres of pedal stroke.
Summary:
A Greek laboratory has developed a bicycle mechanism, by which they are achieved the complete elimination of top and bottom dead centers of the pedal stroke and a significant overlapping of the pedal power periods. This bicycle mechanism can be adapted within any bicycle type (existing or designed from the beginning). The Greek laboratory is looking for manufacturer in bike industry to reach a financial or license agreement.
Description:
A Greek laboratory specialized in pure mechanical mechanisms, has developed a power transmission mechanism with a large number of applications. A first field of application is cycling. The Greek laboratory is trying to deal with the cycling challenges of the classic type bicycle like the delay until bicycle begins to generate torque when the pedal is at the uppermost position of its stroke and the bone, tendon and muscle strain that occurs in such a procedure. Additionally, the lack of helpful overlapping of the pedal power periods.

The new proposed mechanism developed solves most of the problems of cycling. The mechanism completely eliminates the top and bottom dead centers (TDC and BDC) when using the pedals. Not the simple shifting of these, as happens using a non-circular sprocket. Additionally, a significant overlapping of the pedal power periods is also achieved, resulting in that the fluctuation of the torque which finally moves the bicycle is drastically reduced or even rendered negligible.

It is also developed an innovative methodology for geometric construction and computerized numerical control (CNC) manufacturing of toothing, resulting in high efficiency. This methodology is directly applied on the special toothings of this bicycle mechanism.

Although this bicycle mechanism is purely mechanical, with efficiency very close to 100%, it can cooperate with an electric motor or any type of engine in general, which assists the motion of the bicycle, providing further arrangements for an even higher exploitation of the work that the cyclist produces.

This bicycle mechanism can be adapted within any existing bicycle type. In the case of designing a bicycle from the beginning, which includes this mechanism, it is achieved a better combination than the case of existing bicycle, regarding the functional ergonomics, aesthetic appearance and cost of production. In both cases there is also available a version with removable mechanism.

A personalized bicycle design is carried out, taking into account particularities like sex, age, use, as well as personal parameters and differentiations between the right foot/hand and the left foot/hand etc.

The Greek laboratory is looking for partners for manufacturing, purchasing, assembling and packaging the single mechanism or the whole bicycle with this mechanism. In addition, license agreement is sought with companies interested in further exploit the mechanism.
Advantages and Innovations:
The new proposed mechanism, has the following characteristics:
1. The mechanism completely eliminates the top and bottom dead centers (TDC and BDC) when using the pedals. Not the simple shifting of these, as happens using a non-circular sprocket.
2. A significant overlapping of the pedal power periods is also achieved, resulting in that the fluctuation of the torque which finally moves the bicycle is drastically reduced or even rendered negligible.
3. Although this bicycle mechanism is purely mechanical, with efficiency very close to 100%, it can cooperate with an electric motor or any type of engine in general, which assists the motion of the bicycle, providing further arrangements for an even higher exploitation of the work that the cyclist produces.
4. This bicycle mechanism can be adapted within any existing bicycle type.
5. In the case of designing a bicycle from the beginning, it is achieved a better combination than the case of existing bicycle, regarding the functional ergonomics, aesthetic appearance and cost of production.
6. Both in the case of designing a bicycle from the beginning and in the case of adaptation of the mechanism to an existing bicycle, there is available a version with removable mechanism.
7. The bicycle design is personalized, taking into account particularities like sex, age, use, as well as personal parameters and differentiations between the right foot/hand and the left foot/hand etc, resulting in maximum ergonomics and minimum stress and wear of cyclist´s body.
8. Bicycle bearing this mechanism can be used for medical purposes by people with temporary or even permanent problems in their limbs or other body parts that are involved in cycling, and
9. It is easy for the end user, as only a few minutes of cycling are required until the average cyclist adjusts their behaviour to the new type of cycling.
Stage of Development:
Prototype available for demonstration
IPs:
Secret Know-how,Patents granted

Partner sought

Type and Role of Partner Sought:
¿he sought partner could be a manufacturer being involved in bicycle industry, with experience in stamping (pressing) metalworking, or/and metal die casting process, and automated (CNC) metal machining. The partner should be interested to provide financial means for the costs of the process (out of design and engineering), which means manufacturing, purchasing of necessary spare parts, assembling and packaging. This is a requirement for both cases: (a) the single bicycle mechanism as a retrofitting kit (adaptation of the mechanism to an existing bicycle) and/or (b) the whole bicycle that includes the bicycle mechanism (designing a bicycle from the beginning).

Client

Type and Size of Client:
R&D Institution
Already Engaged in Trans-National Cooperation:
No
Languages Spoken:
English
Greek

Keywords

Technology Keywords:
02002009 Machine Tools