EP1995650A1 - Timepiece movement comprising a karrusel - Google Patents

Timepiece movement comprising a karrusel Download PDF

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Publication number
EP1995650A1
EP1995650A1 EP07108771A EP07108771A EP1995650A1 EP 1995650 A1 EP1995650 A1 EP 1995650A1 EP 07108771 A EP07108771 A EP 07108771A EP 07108771 A EP07108771 A EP 07108771A EP 1995650 A1 EP1995650 A1 EP 1995650A1
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EP
European Patent Office
Prior art keywords
cage
wheel
speed
movement according
intermediate wheel
Prior art date
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.)
Granted
Application number
EP07108771A
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German (de)
French (fr)
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EP1995650B1 (en
Inventor
Vincent Calabrese
Marco M. Rochat
Sébastien M. Graf
Edmond M. Capt
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Blancpain SA
Original Assignee
Blancpain SA
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Blancpain SA filed Critical Blancpain SA
Priority to EP07108771.2A priority Critical patent/EP1995650B1/en
Priority to US12/601,418 priority patent/US8353623B2/en
Priority to CN2008800215650A priority patent/CN101720452B/en
Priority to JP2010508847A priority patent/JP5395787B2/en
Priority to PCT/EP2008/056280 priority patent/WO2008142120A1/en
Publication of EP1995650A1 publication Critical patent/EP1995650A1/en
Priority to HK10111216.3A priority patent/HK1144714A1/en
Application granted granted Critical
Publication of EP1995650B1 publication Critical patent/EP1995650B1/en
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    • G—PHYSICS
    • G04—HOROLOGY
    • G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
    • G04B17/00—Mechanisms for stabilising frequency
    • G04B17/20—Compensation of mechanisms for stabilising frequency
    • G04B17/28—Compensation of mechanisms for stabilising frequency for the effect of imbalance of the weights, e.g. tourbillon
    • G04B17/285—Tourbillons or carrousels

Definitions

  • the present invention generally relates to mechanical watch movements in which the portion of the finishing train which kinematically links an intermediate wheel to the escape wheel is mounted on a rotary platform which also carries the escapement and the balance, said platform shape being further driven by the movement to rotate about the axis of the intermediate wheel at a speed different from the speed of the intermediate wheel.
  • the patent document CH 7965 in particular describes such a movement with reference to drawings, one of which is reproduced in the figure 1 , attached to this document.
  • the described movement comprises a finishing which has been shown only the last two mobiles. This is the mobile formed by the average pinion and the average wheel (respectively referenced G and H), and the mobile formed by the pinion and the second wheel (respectively referenced A and C).
  • the document specifies that the second wheel (or intermediate wheel) C causes the exhaust (not shown) in a known manner.
  • the exhaust and the beam E are mounted on a platform F.
  • the platform F has on its underside a thick cylindrical pin B which is inserted to rotate in an opening of a board P.
  • the cylindrical pivot B is hollow and is shaped so as to pass the axis of the second mobile, so that the platform F and the second wheel rotates about the same axis.
  • the average gear G is designed to drive the platform F in rotation, via a wheel D, pierced in the middle and screwed to the platform, concentrically to the axis of rotation thereof.
  • the average wheel H is driven in a fairly conventional manner at the speed of one revolution in 7 1 ⁇ 2 minutes.
  • the average G pinion has seven times less teeth than the D wheel with which it engrains, the platform F thus performs a turn every 52 1 ⁇ 2 minutes.
  • the pinion of second A has 7 1 ⁇ 2 times less teeth than the wheel of average H.
  • the pinion of second A therefore classically performs exactly one revolution per minute.
  • the frequency of the beam E must be decreased about 2% to account for the speed of platform F.
  • An object of the present invention is therefore to provide a watch movement equipped with a carousel that has the same aesthetic qualities as a tourbillon. It achieves this goal by providing a watch movement according to claim 1.
  • the cage when the movement is running, the cage rotates at a speed of one revolution per minute.
  • the second wheel of the carousels of the prior art also performs one revolution per minute.
  • the escape wheel would not be driven.
  • the speed of the second wheel is not one revolution per minute.
  • This wheel is not strictly speaking a wheel of seconds, but a false-second wheel or, more simply, an intermediate wheel.
  • the speed of this intermediate wheel is not one revolution per minute, it can not be used to carry the seconds indicator of a timepiece.
  • the cage may advantageously be visible on the dial side and itself bear means for indicating the seconds.
  • the drive train of the cage of a carousel which is represented in figures 2 and 3 , is a cogwheel type finishing.
  • it comprises a center wheel 3 driven by a barrel (not shown) and conventionally one turn per hour.
  • the axis 5 of the center wheel is intended to carry a minute hand.
  • the wheel also comprises a moving average comprising a pinion of average 7 and a wheel of average 9, and a carousel wheel 17 integral in rotation with the cage of the carousel 16.
  • the carousel wheel 17 is driven indirectly by the wheel of average via two intermediate mobiles, namely a first intermediate mobile formed pinion 11 and the wheel 13 and a second intermediate mobile referenced 15 and serving as a reference.
  • the mobile 11, 13 is hereinafter called "mobile inter second".
  • the carousel 16 carries the balance 19 and the exhaust mechanism.
  • the escape mechanism is of the conventional type. It comprises in particular an escape wheel 27 which is visible in particular on the figure 2 (the escape mechanism is not represented in the figure 3 ).
  • the figures 4 and 5 represent the cogwheel that connects the barrel (not shown) to the escape wheel.
  • figures 4 and 5 is also of the type finishing is sharing some of its motives with the wheels of figures 2 and 3 .
  • the gear train driving the exhaust comprises the center wheel 3, the average wheel 7, 9, and the escapement consisting of an exhaust pinion 25 and the escape wheel 27.
  • the exhaust pinion is driven indirectly by the average wheel 9 via an intermediate mobile formed pinion 21 and the wheel 23.
  • the pinion 21 and the wheel 23 are respectively called hereinafter pinion wheel and "false second ".
  • one of the mobiles of the exhaust drive train is arranged to rotate coaxially with the carousel wheel 17 and thus also with the cage of the carousel 16.
  • the false second mobile 21, 23 which coaxially rotates with the carousel.
  • the escapement 25, 27 and the balance 19 are mounted in the cage 16 and thus rotate with it.
  • the gear ratio between the average pinion 7 and the center wheel 3 is 11 1 ⁇ 4.
  • the gear ratio between the false second pinion 21 and the third wheel 9 is 10 2/3. It can therefore be calculated that the false second wheel rotates 120 times faster than the center wheel.
  • a single mobile separates the false second mobile 21, 23 from the center wheel 3. Under these conditions, the false second wheel 23 rotates in the same direction as the center wheel, and therefore also rotates in the same direction. meaning that the carousel cage.
  • the carousel cage rotates at a speed of one revolution per minute.
  • the center wheel does one revolution per hour.
  • the speed of the axis 5 of the center wheel is therefore adequate to carry a minute hand.
  • the false second wheel 23 accomplishes two revolutions per minute. This last wheel rotating in the same direction as the cage 16, it follows that in the present example, the speed of the false second wheel 23 relative to the cage is one revolution per minute.
  • the arrangement of the cage is conventional.
  • This cage is pivotally mounted between the bearing 31 of the cage bridge 33 and the bearing 35 of the barrel bridge 37.
  • figure 5 allows to appreciate another feature made possible by the present invention.
  • the balance 19 is arranged coaxially with the cage of the carousel 16.
  • the balance shaft extends in the extension of the mobile (false) second 21, 23, between the dial (not shown) and the latter. It will be understood that, under these conditions, it is problematic to extend the axis of the second mobile to bring to it a visible needle dial side.
  • the figure 7 represents a carousel "steering wheel” which is an alternative embodiment of the carousel of the previous figures. According to this variant, the wheels and the escapement are identical to those described in relation to the Figures 2 to 6 . Comparing the figure 7 to the figure 5 it can be seen that a ball bearing 41 has taken the place of the bearing 31 in the cage bridge 33. As the bearing 31 of the figure 5 , the core 43 of the bearing shown in FIG. figure 7 is traversed by a vertical cylindrical opening for passing the false second mobile 21, 23. Also visible on the figure 7 that the outer ring of the ball bearing is fixed in the cage bridge 33 while the core 43 carries the carousel wheel 17 and thus also the cage as a whole.
  • the barrette bridge 37 ( figure 5 ) and the step 35 can be deleted.
  • the cage is mounted on a single pivot supporting it by the base.
  • the cage is completely free on the top. The carousel therefore gives the impression of flying above the movement, hence the name "flying carousel”.
  • the intermediate mobile can, as in the preceding example, turn faster than the cage in the same direction as that -this. However, it can just as well turn slower than the cage in the same direction as this one, or even turn in the opposite direction to that of the cage.
  • the skilled person will not encounter any problem to achieve these variants of carousels. Indeed, it knows how to manufacture rockers and / or escapements to regulate the rotation of a wheel at any speed different from one turn per minute. Moreover, he knows how to make escapements turning in one direction or the other. In this respect, it is worth noting that if the wheel 23 rotates in the same direction, but slower than the cage, its speed relative to the cage is negative. In other words, relative to the cage 16, the wheel 23 rotates in the opposite direction.
  • the mobile of (false) second 21, 23 meshing with the exhaust could be carried by the cage 16 in the eccentric position in the manner of a satellite.
  • the cage would be arranged to rotate about the axis of another intermediate mobile, for example a mobile (not shown in the figures) interposed between the mobile of average 7, 9 and the false seconds mobile 21, 23.
  • the gear ratios could for example be chosen so that the intermediate mobile rotates in the same direction as the cage but a little slower than this one (Concretely, the intermediate mobile could for example include a large pinion of 20 teeth arranged to mesh with the wheel 9, so that the mobile is driven at a speed of 54 revolutions per hour). Under these conditions, relative to the cage which performs 60 revolutions per hour, the wheel of the intermediate mobile would rotate at a reduced speed in the opposite direction (at the speed of 6 revolutions per hour, in the present example). The gear ratio between the intermediate mobile and the false second mobile 21, 23 would then be determined so that the rotational speed of the false second wheel 23 relative to the cage is adapted to the rate of escape.
  • the wheel of the intermediate mobile could for example have 90 teeth and the false second pinion 21, nine teeth). It will be understood in this new example, relative to the cage, the false second wheel 23 rotates in the direction of clockwise, which allows to use a rotating exhaust in the usual direction (the same direction as in the first example).
  • the mobile interposed between the mobile of average 7, 9 and the false second mobile 21, 23 could turn slightly faster than the cage. Under these conditions, relative to the cage, the false second wheel 23 would turn in the opposite direction of the clockwise. As we have seen, this However, this characteristic does not represent a real problem for those skilled in the art.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electromechanical Clocks (AREA)
  • Measurement Of Unknown Time Intervals (AREA)
  • Gear Transmission (AREA)

Abstract

The movement has a balance and a gear-train for transmitting the energy stored in a barrel to an escapement wheel. The gear-train has an intermediate wheel (23) kinematically connected to the barrel by a portion of the gear and kinematically connected to the escapement wheel by another portion of the gear. The latter portion and the balance are mounted in a rotary cage (16) kinematically connected to the movement and coaxially rotated about the intermediate wheel at a speed different from speed of the intermediate wheel. The movement imposes speed of one revolution per minute to the cage.

Description

La présente invention concerne généralement les mouvements horlogers mécaniques dans lesquels la portion du rouage de finissage qui relie cinématiquement une roue intermédiaire à la roue d'échappement est montée sur une plate-forme rotative qui porte également l'échappement et le balancier, ladite plate-forme étant en outre entraînée par le mouvement pour tourner autour de l'axe de la roue intermédiaire à une vitesse différente de la vitesse de la roue intermédiaire.The present invention generally relates to mechanical watch movements in which the portion of the finishing train which kinematically links an intermediate wheel to the escape wheel is mounted on a rotary platform which also carries the escapement and the balance, said platform shape being further driven by the movement to rotate about the axis of the intermediate wheel at a speed different from the speed of the intermediate wheel.

On connaît déjà des mouvements horlogers qui correspondent à la définition ci-dessus. Le document de brevet CH 7965 en particulier décrit un tel mouvement en se référant à des dessins, l'un desquels est reproduit à la figure 1, en annexe du présent document. Le mouvement décrit comporte un finissage dont on a représenté uniquement les deux derniers mobiles. Il s'agit du mobile formé par le pignon de moyenne et la roue de moyenne (respectivement référencés G et H), et du mobile formé par le pignon et la roue de seconde (respectivement référencés A et C). Le document précise que la roue de seconde (ou roue intermédiaire) C entraîne l'échappement (non représenté) de manière connue. D'autre part, l'échappement et le balancier E sont montés sur une plate-forme F. La plate-forme F présente sur sa face inférieure un pivot cylindrique épais B qui est inséré pour tourner dans une ouverture d'une planche P. Le pivot cylindrique B est creux et il est conformé de manière à laisser passer l'axe du mobile de seconde, de sorte que la plate-forme F et la roue de seconde tourne autour du même axe. Enfin, le pignon de moyenne G est prévu pour entraîner la plate-forme F en rotation, par l'intermédiaire d'une roue D, percée en son milieu et vissée à la plate-forme, concentriquement à l'axe de rotation de celle-ci.We already know watch movements that correspond to the definition above. The patent document CH 7965 in particular describes such a movement with reference to drawings, one of which is reproduced in the figure 1 , attached to this document. The described movement comprises a finishing which has been shown only the last two mobiles. This is the mobile formed by the average pinion and the average wheel (respectively referenced G and H), and the mobile formed by the pinion and the second wheel (respectively referenced A and C). The document specifies that the second wheel (or intermediate wheel) C causes the exhaust (not shown) in a known manner. On the other hand, the exhaust and the beam E are mounted on a platform F. The platform F has on its underside a thick cylindrical pin B which is inserted to rotate in an opening of a board P. The cylindrical pivot B is hollow and is shaped so as to pass the axis of the second mobile, so that the platform F and the second wheel rotates about the same axis. Finally, the average gear G is designed to drive the platform F in rotation, via a wheel D, pierced in the middle and screwed to the platform, concentrically to the axis of rotation thereof.

Dans l'exemple décrit par ce document antérieur, la roue de moyenne H est entraînée de manière assez conventionnelle à la vitesse d'un tour en 7 ½ minutes. Le pignon de moyenne G a sept fois moins de dents que la roue D avec laquelle il engraine, la plate-forme F effectue donc un tour toutes les 52 ½ minutes. D'autre part, le pignon de seconde A compte 7 ½ fois moins de dents que la roue de moyenne H. Le pignon de seconde A effectue donc classiquement exactement un tour par minute. Comme la vitesse de rotation de la roue de seconde C est déterminée par l'échappement, qui tourne lui-même, avec la plate-forme F, dans le même sens que la roue de seconde C, la fréquence du balancier E doit être diminuée d'environ 2% pour tenir compte de la vitesse de la plate-forme F.In the example described by this prior document, the average wheel H is driven in a fairly conventional manner at the speed of one revolution in 7 ½ minutes. The average G pinion has seven times less teeth than the D wheel with which it engrains, the platform F thus performs a turn every 52 ½ minutes. On the other hand, the pinion of second A has 7 ½ times less teeth than the wheel of average H. The pinion of second A therefore classically performs exactly one revolution per minute. As the rotational speed of the wheel of second C is determined by the escapement, which turns itself, with the platform F, in the same direction as the wheel of second C, the frequency of the beam E must be decreased about 2% to account for the speed of platform F.

L'homme du métier aura reconnu dans la description qui précède un carrousel. A la lecture de cette description, on comprend que le mécanisme du carrousel est tout à fait différent de celui du tourbillon. En effet, comme dans une montre ordinaire, avec un carrousel, l'énergie du barillet est transmise à la roue d'échappement par l'intermédiaire de la roue de seconde. L'entraînement de la plate-forme par le mouvement est assuré par un engrenage supplémentaire, et si l'on débraye cet engrenage, la montre peut continuer à fonctionner alors que la plate-forme ne tourne plus.The skilled person will have recognized in the foregoing description a carousel. Reading this description, it is understood that the mechanism of the carousel is quite different from that of the vortex. Indeed, as in an ordinary watch, with a carousel, the energy of the barrel is transmitted to the escape wheel via the second wheel. The drive of the platform by the movement is provided by an additional gear, and if this gear is disengaged, the watch can continue to operate while the platform is no longer running.

Selon l'ouvrage « La montre : principes et méthodes de fabrication » (pages 298-9 ), le carrousel compense aussi bien que le tourbillon les défauts d'équilibrage du balancier. De plus, il est plus facile à réaliser et à produire en quantité. Toutefois, pour les horlogers et les collectionneurs, le tourbillon est plus agréable à regarder. Un but de la présente invention est donc de fournir un mouvement horloger équipé d'un carrousel qui présente les mêmes qualités esthétiques qu'un tourbillon. Elle atteint ce but en fournissant un mouvement horloger conforme à la revendication 1.According to the book "The watch: principles and methods of manufacture" (pages 298-9 ), the carousel compensates as well as the vortex equilibrium balancing defects. In addition, it is easier to produce and produce in quantity. However, for watchmakers and collectors, the tourbillon is more pleasant to watch. An object of the present invention is therefore to provide a watch movement equipped with a carousel that has the same aesthetic qualities as a tourbillon. It achieves this goal by providing a watch movement according to claim 1.

Conformément à la présente invention, lorsque le mouvement est en marche, la cage tourne à la vitesse d'un tour par minute. La mise en oeuvre de cette caractéristique technique ne va pas de soi. En effet, la roue de seconde des carrousels de l'art antérieur accomplit également un tour par minute. Or, si la roue de seconde et la cage tournaient à la même vitesse, la roue d'échappement ne serait pas entraînée. Ainsi, selon la présente invention, la vitesse de la roue de seconde n'est pas de un tour par minute. Cette roue n'est donc pas à proprement parler une roue de seconde, mais une roue de fausse-seconde ou, dit plus simplement, une roue intermédiaire. De plus, comme la vitesse de cette roue intermédiaire n'est pas de un tour par minute, elle ne peut pas être utilisée pour porter l'indicateur de secondes d'une pièce d'horlogerie. Toutefois, dans une pièce d'horlogerie équipée d'un mouvement selon la présente invention, la cage peut, de manière avantageuse, être visible côté cadran et porter elle-même des moyens pour indiquer les secondes.According to the present invention, when the movement is running, the cage rotates at a speed of one revolution per minute. The implementation of this technical feature is not self-evident. Indeed, the second wheel of the carousels of the prior art also performs one revolution per minute. However, if the second wheel and the cage were running at the same speed, the escape wheel would not be driven. Thus, according to the present invention, the speed of the second wheel is not one revolution per minute. This wheel is not strictly speaking a wheel of seconds, but a false-second wheel or, more simply, an intermediate wheel. In addition, since the speed of this intermediate wheel is not one revolution per minute, it can not be used to carry the seconds indicator of a timepiece. However, in a timepiece equipped with a movement according to the present invention, the cage may advantageously be visible on the dial side and itself bear means for indicating the seconds.

On pourrait être tenté de résumer la revendication 1 annexée, en disant qu'elle définit un carrousel caractérisé en qu'il est prévu pour tourner à la vitesse d'un tour par minute. Toutefois, il faut préciser que la littérature horlogère contient deux définitions incompatibles pour un carrousel. La présente demande utilise le terme carrousel dans son sens traditionnel qui reprend toutes les caractéristiques du préambule de la revendication 1. Toutefois, l'ouvrage « Théorie d'horlogerie » donne une autre définition pour un carrousel. Selon cette définition plus récente, un carrousel serait simplement un tourbillon dans lequel le balancier est décentré par rapport à l'axe de rotation de la cage. Evidemment, si l'on se base sur cette seconde définition, un carrousel tournant à la vitesse d'un tour par minute est une chose bien connue de l'homme du métier.It may be tempting to summarize appended claim 1, by saying that it defines a carousel characterized in that it is intended to rotate at a speed of one revolution per minute. However, it should be noted that watchmaking literature contains two incompatible definitions for a carousel. The present application uses the term carousel in its traditional sense which includes all the features of the preamble of claim 1. However, the book "Theorie d'horlogerie" gives another definition for a carousel. According to this more recent definition, a carousel is simply a vortex in which the balance is off-center with respect to the axis of rotation of the cage. Obviously, based on this second definition, a carousel rotating at a speed of one revolution per minute is a thing well known to those skilled in the art.

D'autres caractéristiques et avantages de la présente invention apparaîtront à la lecture de la description qui va suivre, donnée uniquement à titre d'exemple non limitatif, et faite en référence aux dessins annexés dans lesquels :

  • la figure 1, reproduite du document de brevet CH 7965 , est une vue schématique en coupe du rouage d'un carrousel de l'art antérieur ;
  • la figure 2 est une vue en plan du rouage entraînant la cage du carrousel d'un mouvement horloger selon un mode de réalisation particulier de la présente invention ;
  • la figure 3 est une vue schématique en coupe selon A-A de la figure 2 ;
  • la figure 4 est une vue en plan du rouage entraînant l'échappement du mouvement horloger de la figure 2 ;
  • la figure 5 est une vue schématique en coupe selon B-B de la figure 4 ;
  • la figure 6 est une en plan du rouage complet du carrousel de la figure 2 ;
  • la figure 7 est une vue schématique en coupe illustrant une variante de réalisation de la cage du carrousel.
Other features and advantages of the present invention will appear on reading the following description, given solely by way of non-limiting example, and with reference to the appended drawings in which:
  • the figure 1 , reproduced from the patent document CH 7965 , is a schematic sectional view of the workings of a carousel of the prior art;
  • the figure 2 is a plan view of the train driving the carousel cage of a watch movement according to a particular embodiment of the present invention;
  • the figure 3 is a schematic sectional view along AA of the figure 2 ;
  • the figure 4 is a plan view of the gear train causing the escape of the watch movement from the figure 2 ;
  • the figure 5 is a schematic sectional view along BB of the figure 4 ;
  • the figure 6 is a plan of the complete carousel of the carousel of the figure 2 ;
  • the figure 7 is a schematic sectional view illustrating an alternative embodiment of the carousel cage.

Le rouage d'entraînement de la cage d'un carrousel, qui est représenté dans les figures 2 et 3, est un rouage de type finissage. Ainsi, il comporte une roue de centre 3 entraînée par un barillet (non représenté) et faisant classiquement un tour par heure. L'axe 5 de la roue de centre est prévu pour porter une aiguille des minutes. Le rouage comporte encore un mobile de moyenne comprenant une pignon de moyenne 7 et une roue de moyenne 9, et une roue de carrousel 17 solidaire en rotation de la cage du carrousel 16. La roue de carrousel 17 est entraînée indirectement par la roue de moyenne via deux mobiles intermédiaires, à savoir un premier mobile intermédiaire formé du pignon 11 et de la roue 13 et un deuxième mobile intermédiaire référencé 15 et servant de renvoi. Par analogie avec un finissage traditionnel, le mobile 11, 13 est appelé ci-après « mobile de seconde inter ».The drive train of the cage of a carousel, which is represented in figures 2 and 3 , is a cogwheel type finishing. Thus, it comprises a center wheel 3 driven by a barrel (not shown) and conventionally one turn per hour. The axis 5 of the center wheel is intended to carry a minute hand. The wheel also comprises a moving average comprising a pinion of average 7 and a wheel of average 9, and a carousel wheel 17 integral in rotation with the cage of the carousel 16. The carousel wheel 17 is driven indirectly by the wheel of average via two intermediate mobiles, namely a first intermediate mobile formed pinion 11 and the wheel 13 and a second intermediate mobile referenced 15 and serving as a reference. By analogy with a traditional finishing, the mobile 11, 13 is hereinafter called "mobile inter second".

On comprendra de ce qui précède que, dans le présent exemple, la roue de carrousel 17 étant séparée de la roue de centre 3 par un nombre impair de mobiles, ces deux roues tournent dans le même sens. D'autre part, le rapport d'engrenage entre le pignon de moyenne 7 et la roue de centre 3 est de 11 ¼, alors que le rapport d'engrenage entre le pignon de seconde inter 11 et la roue de moyenne 9 est de 9 3/5, et que le rapport d'engrenage entre la roue de carrousel 17 et la roue de seconde inter 13 est de 5/9. On peut donc calculer que le carrousel 16 tourne 60 fois plus vite que la roue de centre. Il accomplit donc 1 tour par minute.It will be understood from the foregoing that, in the present example, the carousel wheel 17 being separated from the center wheel 3 by an odd number of mobiles, these two wheels rotate in the same direction. On the other hand, the gear ratio between the average pinion 7 and the center wheel 3 is 11 ¼, while the gear ratio between the second pinion inter 11 and the average wheel 9 is 9. 3/5, and the gear ratio between the carousel wheel 17 and second wheel 13 is inter 5/9. It can therefore be calculated that the carousel 16 rotates 60 times faster than the center wheel. He thus accomplishes 1 turn per minute.

On peut voir encore sur les figures que le carrousel 16 porte le balancier 19 ainsi que le mécanisme d'échappement. Dans le présent exemple, le mécanisme d'échappement est de type classique. II comporte notamment une roue d'échappement 27 qui est visible en particulier sur la figure 2 (le mécanisme d'échappement n'est par représenté dans la figure 3).We can still see in the figures that the carousel 16 carries the balance 19 and the exhaust mechanism. In the present example, the escape mechanism is of the conventional type. It comprises in particular an escape wheel 27 which is visible in particular on the figure 2 (the escape mechanism is not represented in the figure 3 ).

Les figures 4 et 5 représentent le rouage qui relie le barillet (non représenté) à la roue d'échappement 27. Le rouage des figures 4 et 5 est également du type finissage est partage certain de ses mobiles avec le rouage des figures 2 et 3. Le rouage entraînant l'échappement comporte la roue de centre 3, le mobile de moyenne 7, 9, et le mobile d'échappement composé d'un pignon d'échappement 25 et de la roue d'échappement 27. Le pignon d'échappement est entraîné indirectement par la roue de moyenne 9 via un mobile intermédiaire formé du pignon 21 et de la roue 23. Par analogie avec un finissage traditionnel, le pignon 21 et la roue 23 sont respectivement appelés ci-après pignon et roue de « fausse seconde ».The figures 4 and 5 represent the cogwheel that connects the barrel (not shown) to the escape wheel. figures 4 and 5 is also of the type finishing is sharing some of its motives with the wheels of figures 2 and 3 . The gear train driving the exhaust comprises the center wheel 3, the average wheel 7, 9, and the escapement consisting of an exhaust pinion 25 and the escape wheel 27. The exhaust pinion is driven indirectly by the average wheel 9 via an intermediate mobile formed pinion 21 and the wheel 23. By analogy with a traditional finishing, the pinion 21 and the wheel 23 are respectively called hereinafter pinion wheel and "false second ".

Conformément à la présente invention, un des mobiles du rouage d'entraînement de l'échappement est disposé pour tourner coaxialement avec la roue de carrousel 17 et donc aussi avec la cage du carrousel 16. Comme on peut le voir sur la figure 5 notamment, dans le présent exemple, c'est le mobile de fausse seconde 21, 23 qui tourne coaxialement avec le carrousel. D'autre part, comme on l'a déjà dit, l'échappement 25, 27 et le balancier 19 sont montés dans la cage 16 et tournent donc avec celle-ci.According to the present invention, one of the mobiles of the exhaust drive train is arranged to rotate coaxially with the carousel wheel 17 and thus also with the cage of the carousel 16. As can be seen on the figure 5 particular, in this example, it is the false second mobile 21, 23 which coaxially rotates with the carousel. On the other hand, as has already been said, the escapement 25, 27 and the balance 19 are mounted in the cage 16 and thus rotate with it.

On a déjà vu que le rapport d'engrenage entre le pignon de moyenne 7 et la roue de centre 3 est de 11 ¼. D'autre part, le rapport d'engrenage entre le pignon de fausse seconde 21 et la roue de moyenne 9 est de 10 2/3. On peut donc calculer que la roue de fausse seconde tourne 120 fois plus vite que la roue de centre. De plus, un seul mobile sépare le mobile de fausse seconde 21, 23 de la roue de centre 3. Dans ces conditions, la roue de fausse seconde 23 tourne dans le même sens que la roue de centre, et tourne donc aussi dans le même sens que la cage du carrousel.We have already seen that the gear ratio between the average pinion 7 and the center wheel 3 is 11 ¼. On the other hand, the gear ratio between the false second pinion 21 and the third wheel 9 is 10 2/3. It can therefore be calculated that the false second wheel rotates 120 times faster than the center wheel. In addition, a single mobile separates the false second mobile 21, 23 from the center wheel 3. Under these conditions, the false second wheel 23 rotates in the same direction as the center wheel, and therefore also rotates in the same direction. meaning that the carousel cage.

Selon la présente invention, la cage du carrousel tourne à la vitesse d'un tour par minute. Compte tenu des rapports d'engrenages utilisés dans le présent exemple, on peut déduire que la roue de centre accomplit bien un tour par heure. La vitesse de l'axe 5 de la roue de centre est donc adéquate pour porter une aiguille des minutes. II découle également des rapports d'engrenages choisis, que la roue de fausse seconde 23 accomplit deux tours par minute. Cette dernière roue tournant dans le même sens que la cage 16, on en déduit que, dans le présent exemple, la vitesse de la roue de fausse seconde 23 relativement à la cage est d'un tour par minute.According to the present invention, the carousel cage rotates at a speed of one revolution per minute. Given the gear ratios used in this example, it can be deduced that the center wheel does one revolution per hour. The speed of the axis 5 of the center wheel is therefore adequate to carry a minute hand. It also follows from the selected gear ratios that the false second wheel 23 accomplishes two revolutions per minute. This last wheel rotating in the same direction as the cage 16, it follows that in the present example, the speed of the false second wheel 23 relative to the cage is one revolution per minute.

On comprendra de ce qui précède qu'une conséquence avantageuse des rapports d'engrenages mis en oeuvre dans le présent exemple est que le balancier et l'échappement peuvent fonctionner à la même fréquence que dans un mouvement horloger habituel. En effet, l'échappement étant monté dans la cage, il doit donc réguler la roue de fausse seconde à la vitesse usuelle d'un tour par minute. Grâce à cette caractéristique, il est possible d'utiliser un balancier et un échappement standard pour réaliser le mouvement horloger du présent exemple. On peut par exemple choisir un balancier 19 avec une fréquence de 3Hz, une roue d'échappement possédant quinze dents, et un rapport d'engrenage de douze entre le pignon d'échappement 25 et la roue de fausse seconde 23.It will be understood from the foregoing that an advantageous consequence of the gear ratios used in the present example is that the balance and the escapement can operate at the same frequency as in a usual clockwork movement. Indeed, the exhaust being mounted in the cage, it must therefore regulate the false second wheel at the usual speed of one revolution per minute. With this feature, it is possible to use a standard pendulum and exhaust to achieve the watch movement of this example. One can for example choose a balance 19 with a frequency of 3 Hz, a wheel exhaust having fifteen teeth, and a gear ratio of twelve between the exhaust pinion 25 and the false second wheel 23.

Comme on peut le voir sur la figure 5 notamment, dans le présent exemple, la disposition de la cage est classique. Cette cage est montée pivotante entre le palier 31 du pont de cage 33 et le palier 35 du pont de barrette 37. La coupe de la figure 5 permet d'apprécier une autre particularité rendue possible par la présente invention. On voit en effet que le balancier 19 est arrangé coaxialement avec la cage du carrousel 16. Bien que cette disposition soit esthétiquement avantageuse, elle pourrait entraîner certains problèmes. En effet, l'arbre de balancier s'étend dans le prolongement du mobile de (fausse) seconde 21, 23, entre le cadran (non représenté) et ce dernier. On comprendra que, dans ces conditions, il est problématique de prolonger l'axe du mobile de seconde pour faire porter à celui-ci une aiguille visible côté cadran. Toutefois, comme selon la présente invention, c'est la cage du carrousel 16 qui tourne à la vitesse d'un tour par minute, cette dernière peut se substituer au mobile de seconde pour porter l'indicateur des secondes.As can be seen on the figure 5 in particular, in the present example, the arrangement of the cage is conventional. This cage is pivotally mounted between the bearing 31 of the cage bridge 33 and the bearing 35 of the barrel bridge 37. figure 5 allows to appreciate another feature made possible by the present invention. It can be seen that the balance 19 is arranged coaxially with the cage of the carousel 16. Although this arrangement is aesthetically advantageous, it could cause some problems. Indeed, the balance shaft extends in the extension of the mobile (false) second 21, 23, between the dial (not shown) and the latter. It will be understood that, under these conditions, it is problematic to extend the axis of the second mobile to bring to it a visible needle dial side. However, as according to the present invention, it is the carousel cage 16 which rotates at the speed of one revolution per minute, the latter can be substituted for the second mobile to carry the seconds indicator.

La figure 7 représente un carrousel « volant » qui constitue une variante de réalisation du carrousel des figures précédentes. Selon cette variante, les rouages et l'échappement sont identiques à ceux décrits en relation avec les figures 2 à 6. En comparant la figure 7 à la figure 5, on peut voir qu'un roulement à billes 41 a pris la place du palier 31 dans le pont de cage 33. Comme le palier 31 de la figure 5, le noyau 43 du roulement représenté à la figure 7 est traversé par une ouverture cylindrique verticale prévue pour laisser passer le mobile de fausse seconde 21, 23. On voit également sur la figure 7 que la bague extérieure du roulement à bille est fixée dans le pont de cage 33 alors que le noyau 43 porte la roue de carrousel 17 et donc également la cage dans son ensemble. Grâce à cette disposition, le pont de barrette 37 (figure 5) et le palier 35 peuvent être supprimés. Ainsi, dans cette variante, la cage est montée sur un seul pivot supportant celle-ci par la base. De plus, la cage est entièrement libre sur le dessus. Le carrousel donne donc un peu l'impression de voler au dessus du mouvement, d'où l'appellation de « carrousel volant ».The figure 7 represents a carousel "steering wheel" which is an alternative embodiment of the carousel of the previous figures. According to this variant, the wheels and the escapement are identical to those described in relation to the Figures 2 to 6 . Comparing the figure 7 to the figure 5 it can be seen that a ball bearing 41 has taken the place of the bearing 31 in the cage bridge 33. As the bearing 31 of the figure 5 , the core 43 of the bearing shown in FIG. figure 7 is traversed by a vertical cylindrical opening for passing the false second mobile 21, 23. Also visible on the figure 7 that the outer ring of the ball bearing is fixed in the cage bridge 33 while the core 43 carries the carousel wheel 17 and thus also the cage as a whole. With this arrangement, the barrette bridge 37 ( figure 5 ) and the step 35 can be deleted. Thus, in this variant, the cage is mounted on a single pivot supporting it by the base. In addition, the cage is completely free on the top. The carousel therefore gives the impression of flying above the movement, hence the name "flying carousel".

On comprendra que diverses modifications et/ou améliorations évidentes pour un homme du métier peuvent être apportées au mode de réalisation qui fait l'objet de la présente description sans sortir du cadre de la présente invention définie par les revendications annexées. En particulier, l'homme du métier pourra modifier les rouages en enlevant ou en ajoutant des mobiles ou en changeant les rapports d'engrenages. La seule contrainte étant que la roue de carrousel 17 doit tourner dans le même sens et à une vitesse 60 fois plus élevée que l'axe des minutes 5. Il est important de comprendre notamment que la vitesse du mobile intermédiaire 21, 23 relativement à la cage 16 n'a absolument pas besoin d'être égale à un tour par minute. La présente invention n'impose, en effet, aucune contrainte pour ce qui est de la vitesse de la roue intermédiaire 23. Le mobile intermédiaire peut, comme dans l'exemple qui précède, tourner plus vite que la cage dans le même sens que celle-ci. Toutefois, il peut tout aussi bien tourner moins vite que la cage dans le même sens que celle-ci, ou même tourner dans le sens contraire de celui de la cage. L'homme du métier ne rencontrera pas de problème pour réaliser ces variantes de carrousels. En effet, il sait fabriquer des balanciers et/ou des échappements permettant de réguler la rotation d'une roue à des vitesses quelconques différentes d'un tour par minute. De plus, il sait réaliser des échappements tournant dans un sens ou dans l'autre. A cet égard, il vaut la peine de remarquer que si la roue 23 tourne dans le même sens, mais moins vite que la cage, sa vitesse relativement à la cage est négative. Autrement dit, relativement à la cage 16, la roue 23 tourne dans le sens contraire.It will be understood that various modifications and / or improvements obvious to one skilled in the art can be made to the embodiment which is the subject of the present description without departing from the scope of the present invention defined by the appended claims. In particular, the skilled person can modify the wheels by removing or adding mobiles or by changing gear ratios. The only constraint is that the carousel wheel 17 must rotate in the same direction and at a speed 60 times greater than the axis of minutes 5. It is important to understand in particular that the speed of the intermediate mobile 21, 23 relative to the cage 16 does not need to be equal to one revolution per minute. The present invention does not impose, in fact, any constraint as regards the speed of the intermediate wheel 23. The intermediate mobile can, as in the preceding example, turn faster than the cage in the same direction as that -this. However, it can just as well turn slower than the cage in the same direction as this one, or even turn in the opposite direction to that of the cage. The skilled person will not encounter any problem to achieve these variants of carousels. Indeed, it knows how to manufacture rockers and / or escapements to regulate the rotation of a wheel at any speed different from one turn per minute. Moreover, he knows how to make escapements turning in one direction or the other. In this respect, it is worth noting that if the wheel 23 rotates in the same direction, but slower than the cage, its speed relative to the cage is negative. In other words, relative to the cage 16, the wheel 23 rotates in the opposite direction.

D'autre part, selon un autre mode de réalisation de la présente invention présentant certaines similitudes avec le tourbillon qui est décrit dans le document de brevet EPO 973'076 , le mobile de (fausse) seconde 21, 23 engrenant avec l'échappement pourrait être porté par la cage 16 en position excentrée à la manière d'un satellite. Dans ces conditions, au lieu d'être coaxiale avec le mobile de fausse seconde, la cage serait arrangée pour tourner autour de l'axe d'un autre mobile intermédiaire, par exemple un mobile (non représenté sur les figures) intercalé entre le mobile de moyenne 7, 9 et le mobile de fausse seconde 21, 23. Les rapports d'engrenage pourraient par exemple être choisis de manière à ce que ce mobile intermédiaire tourne dans le même sens que la cage mais un peu moins vite que celle-ci (Concrètement, le mobile intermédiaire pourrait par exemple comporter un gros pignon de 20 dents disposé pour engrener avec la roue 9, de façon à ce que le mobile soit animé d'une vitesse de 54 tours par heure). Dans ces conditions, relativement à la cage qui accomplit 60 tours par heure, la roue du mobile intermédiaire tournerait à vitesse réduite dans le sens contraire (à la vitesse de 6 tours par heure, dans le présent exemple). Le rapport d'engrenage entre le mobile intermédiaire et le mobile de fausse seconde 21, 23 serait ensuite déterminer de façon à ce que la vitesse de rotation de la roue de fausse seconde 23 relativement à la cage soit adaptée à la cadence de l'échappement utilisé (la roue du mobile intermédiaire pourrait par exemple avoir 90 dents et le pignon de fausse seconde 21, neuf dents). On comprendra dans ce nouvel exemple, relativement à la cage, la roue de fausse seconde 23 tourne dans le sens des aiguilles d'une montre, ce qui permet d'utiliser un échappement tournant dans le sens habituel (le même sens que dans le premier exemple).On the other hand, according to another embodiment of the present invention having some similarities with the vortex which is described in the patent document EPO 973'076 , the mobile of (false) second 21, 23 meshing with the exhaust could be carried by the cage 16 in the eccentric position in the manner of a satellite. Under these conditions, instead of being coaxial with the false second mobile, the cage would be arranged to rotate about the axis of another intermediate mobile, for example a mobile (not shown in the figures) interposed between the mobile of average 7, 9 and the false seconds mobile 21, 23. The gear ratios could for example be chosen so that the intermediate mobile rotates in the same direction as the cage but a little slower than this one (Concretely, the intermediate mobile could for example include a large pinion of 20 teeth arranged to mesh with the wheel 9, so that the mobile is driven at a speed of 54 revolutions per hour). Under these conditions, relative to the cage which performs 60 revolutions per hour, the wheel of the intermediate mobile would rotate at a reduced speed in the opposite direction (at the speed of 6 revolutions per hour, in the present example). The gear ratio between the intermediate mobile and the false second mobile 21, 23 would then be determined so that the rotational speed of the false second wheel 23 relative to the cage is adapted to the rate of escape. used (the wheel of the intermediate mobile could for example have 90 teeth and the false second pinion 21, nine teeth). It will be understood in this new example, relative to the cage, the false second wheel 23 rotates in the direction of clockwise, which allows to use a rotating exhaust in the usual direction (the same direction as in the first example).

Selon une variante de ce dernier mode de réalisation de la présente invention, au lieu de tourner légèrement moins vite que la cage, le mobile intercalé entre le mobile de moyenne 7, 9 et le mobile de fausse seconde 21, 23 pourrait tourner légèrement plus vite que la cage. Dans ces conditions, relativement à la cage, la roue de fausse seconde 23 tournerait dans le sens contraire des aiguilles d'une montre. Comme on l'a vu, cette caractéristique ne représente toutefois pas un véritable problème pour l'homme du métier.According to a variant of this last embodiment of the present invention, instead of turning slightly slower than the cage, the mobile interposed between the mobile of average 7, 9 and the false second mobile 21, 23 could turn slightly faster than the cage. Under these conditions, relative to the cage, the false second wheel 23 would turn in the opposite direction of the clockwise. As we have seen, this However, this characteristic does not represent a real problem for those skilled in the art.

Claims (9)

Mouvement horloger comportant un barillet, un échappement comprenant une roue et un pignon d'échappement (27, 25), un balancier (19) et un rouage prévu pour transmettre de l'énergie emmagasinée dans le barillet à la roue d'échappement, ledit rouage comportant une roue intermédiaire (23), reliée cinématiquement au barillet par une première partie du rouage, et reliée cinématiquement à la roue d'échappement (27) par une seconde partie du rouage, la seconde partie du rouage, ainsi que l'échappement et le balancier, étant montés dans une cage rotative (16) reliée cinématiquement au mouvement et prévue pour tourner coaxialement autour de ladite roue intermédiaire (23) à une vitesse différente de la vitesse de ladite roue intermédiaire; caractérisé en ce que le mouvement est prévu pour imposer une vitesse d'un tour par minute à la cage (16).Watch movement comprising a barrel, an escapement comprising a wheel and an escape pinion (27, 25), a rocker arm (19) and a gear train designed to transmit energy stored in the barrel to the escape wheel, said wheel having an intermediate wheel (23), kinematically connected to the cylinder by a first part of the train, and kinematically connected to the escape wheel (27) by a second part of the train, the second part of the wheel, and the exhaust and the balance, being mounted in a rotary cage (16) kinematically connected to the movement and designed to rotate coaxially around said intermediate wheel (23) at a speed different from the speed of said intermediate wheel; characterized in that the movement is provided to impose a speed of one revolution per minute on the cage (16). Mouvement horloger selon la revendication 1, caractérisé en ce que la cage (16) est prévue pour tourner dans le sens de rotation des aiguilles d'une montre et en ce que la cage porte encore des moyens indicateurs des secondes.Watch movement according to Claim 1, characterized in that the cage (16) is designed to rotate in the direction of rotation of the hands of a watch and that the cage still bears means indicating the seconds. Mouvement horloger selon la revendication 2, caractérisé en ce que ladite roue intermédiaire (23) est prévue pour tourner dans le sens des aiguilles d'une montre à une vitesse supérieure à la vitesse de rotation de la cage (16).Clock movement according to claim 2, characterized in that said intermediate wheel (23) is provided for turning in the direction of clockwise at a speed greater than the rotation speed of the cage (16). Mouvement horloger selon la revendication 1, 2 ou 3, caractérisé en ce que ladite roue intermédiaire (23) engrène directement avec le pignon d'échappement (25).Clock movement according to claim 1, 2 or 3, characterized in that said intermediate wheel (23) meshes directly with the exhaust pinion (25). Mouvement horloger selon la revendication 2, caractérisé en ce que ladite roue intermédiaire (23) est prévue pour tourner dans le même sens que la cage à une vitesse inférieure à la vitesse de rotation de la cage.Clock movement according to claim 2, characterized in that said intermediate wheel (23) is designed to rotate in the same meaning that the cage at a speed lower than the rotational speed of the cage. Mouvement horloger selon la revendication 5, caractérisé en ce que la seconde partie du rouage comprend un mobile intercalé entre ladite roue intermédiaire et le pignon d'échappement, ledit mobile étant porté par la cage (16) en position excentrée.Clock movement according to claim 5, characterized in that the second part of the train comprises a mobile interposed between said intermediate wheel and the exhaust pinion, said mobile being carried by the cage (16) in the eccentric position. Mouvement horloger selon l'une des revendications précédentes, caractérisé en ce que le balancier (19) est arrangé pour osciller coaxialement avec la cage (16).Watch movement according to one of the preceding claims, characterized in that the rocker (19) is arranged to oscillate coaxially with the cage (16). Mouvement horloger selon l'une des revendications précédentes, caractérisé en ce que la cage (16) est montée sur un seul pivot (41) supportant la cage (16) par la base, la cage étant entièrement libre sur le dessus.Clock movement according to one of the preceding claims, characterized in that the cage (16) is mounted on a single pivot (41) supporting the cage (16) by the base, the cage being completely free on the top. Mouvement horloger selon la revendication 9, caractérisé en ce que ledit pivot comporte un roulement à billes (41).Clock movement according to claim 9, characterized in that said pivot comprises a ball bearing (41).
EP07108771.2A 2007-05-23 2007-05-23 Timepiece movement comprising a karrusel Active EP1995650B1 (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
EP07108771.2A EP1995650B1 (en) 2007-05-23 2007-05-23 Timepiece movement comprising a karrusel
US12/601,418 US8353623B2 (en) 2007-05-23 2008-05-21 Timepiece movement including a karussel
CN2008800215650A CN101720452B (en) 2007-05-23 2008-05-21 Timepiece movement including a carousel
JP2010508847A JP5395787B2 (en) 2007-05-23 2008-05-21 Clock including carousel
PCT/EP2008/056280 WO2008142120A1 (en) 2007-05-23 2008-05-21 Timepiece movement including a carousel
HK10111216.3A HK1144714A1 (en) 2007-05-23 2010-12-02 Timepiece movement including a carousel

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EP07108771.2A EP1995650B1 (en) 2007-05-23 2007-05-23 Timepiece movement comprising a karrusel

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EP (1) EP1995650B1 (en)
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EP2466397A1 (en) 2010-12-20 2012-06-20 Blancpain S.A. Rotating clock component with peripheral guide
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EP1995650B1 (en) 2018-03-07
US8353623B2 (en) 2013-01-15
JP5395787B2 (en) 2014-01-22
WO2008142120A1 (en) 2008-11-27
HK1144714A1 (en) 2011-03-04
CN101720452B (en) 2011-11-09
JP2011501107A (en) 2011-01-06
US20100246338A1 (en) 2010-09-30
CN101720452A (en) 2010-06-02

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