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Hilo: Rueda de pilares - Foro General

  1. #1
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    Predeterminado Rueda de pilares

    Perdón si ya se ha tratado, pero...

    Seiko 6138, 6139, Venus 175... ¿Qué funcionalidad o especialidad o ventajas tiene la rueda de pilares en un mecanismo cronográfico?

    Asias
    Saludos; manoloyloles
    As long as I got rock and roll, I'm forever young.

  2. #2
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    santi está desconectado Legión de Honor Forera
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    Hola Manolo, esa pregunta me la he hecho, y la he hecho varias veces durante los ultimos años y parece que la respuesta no es en absoluto definitiva.
    De momento te pongo un link que te lleva a esenciales donde Alberto te explica cn imagenes como funciona una rueda de pilares http://www.relojes-especiales.com/fo...ead.php?t=8781

    Un fuerte abrazo en este calurosisimo verano..."pesadilla de uuna noche de verano ?? "

  3. #3
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    Predeterminado Toma y lee ... Rueda de pilares

    4.4 What is a Column-Wheel?
    As one can imagine, constructing a chronograph is fraught with the potential for inadvertently stopping or damaging the entire movement. For example, if the reset mechanism was somehow activated while the chronograph was running, large destructive forces would be applied to the entire movement train, which would at the very least jam the movement, and would likely destroy several components.

    The column wheel was one of the successful early designs to ensure that none of the above happened. If you can visualize the top of a castle turret, with tooth-like battlements, this is what a column wheel looks like. The pushers that control the chronograph rotate this wheel, and the various parts of the chronograph are controlled by fingers that fall into and out of the spaces between the teeth. This ensures that each of the chronograph parts is coordinated properly.

    Because producing and finishing a column wheel is labor-intensive, a simpler, easier method of producing chronographs was needed to keep this complication from appearing only in very expensive watches. The most common method is to use an oscillating pinion to coordinate the chronograph start, stop, and reset (i.e. a cam shaped device that rotates back and forth as the various functions are activated.) This allows for reliable operation without nearly as much fiddling and hand adjustment as a column wheel requires, and the pinion can be built using pieces of stamped metal.

    These days, relatively few column wheel designs are still being produced - the Zenith El Primero, some Lemania and F. Piguet movements, and (interestingly) a F. Piguet rattrapante mecaquartz are examples. The most common movements, such as the Valjoux 7750 and various Lemania movements (1874, 5100), are not of column wheel design.

    Walt Odets dissected a Frederick Piguet column wheel chronograph and an oscillating pinion Valjoux 7750 in the Horologium.
    4.4.1 Are Column-Wheel chronographs better than other types?
    Tough question - much like the question of which watch is the best.

    Certainly column wheels are a traditional method of coordinating the chronograph components, and tradition counts for a lot.

    On the other hand, the newer, non-column wheel movements have certainly proved themselves in a variety of demanding situations. Both the column-wheel and non-column-wheel version of the Omega Speedmaster were certified for space flight by NASA. And the non-column-wheel Lemania 5100 has been one of the few mechanical movements to be accepted as sufficiently rugged by modern military forces.

    So - much like the question of which watch is best, I suggest that one think about which factors are personally most important in a chronograph, and make the decision from there.

    Tomado de

    http://www.timezone.com/library/wwat...68591017665598

    Saludos
    La vida son dos dias y la mitad llueve ...

  4. #4
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    Gracias Rodaballo, excelente.
    Un abrazo.

  5. #5
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    menos mal que el crono hamilton no tiene eso de las ruedas de pilares, me tendria que pasar dos mese pa entender lo que es
    que la realitat et doni la raó

  6. #6
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    Many thanks, Rodaballo.

    Very intense and interesting reading. It has indeed answered most of my questions.

    ¿Pero qué me pasa en la booooooooca?
    Saludos; manoloyloles
    As long as I got rock and roll, I'm forever young.

  7. #7
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    Puess parece que aquí se despeja parte de la duda de que es mejón, no??
    S.m.s.d.s.s.s.q.e.d.d.e.s.m.

  8. #8
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    Ai dont nou!!!!
    La vida son dos dias y la mitad llueve ...