EP2406690A1 - Column wheel for a chronograph, chronograph, and chronograph-watch including such a wheel - Google Patents

Column wheel for a chronograph, chronograph, and chronograph-watch including such a wheel

Info

Publication number
EP2406690A1
EP2406690A1 EP10709199A EP10709199A EP2406690A1 EP 2406690 A1 EP2406690 A1 EP 2406690A1 EP 10709199 A EP10709199 A EP 10709199A EP 10709199 A EP10709199 A EP 10709199A EP 2406690 A1 EP2406690 A1 EP 2406690A1
Authority
EP
European Patent Office
Prior art keywords
wheel
chronograph
column
columns
angle
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
EP10709199A
Other languages
German (de)
French (fr)
Other versions
EP2406690B1 (en
Inventor
Olivier Mertenat
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.)
Compagnie des Montres Longines Francillon SA
Original Assignee
ETA SA Manufacture Horlogere Suisse
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 ETA SA Manufacture Horlogere Suisse filed Critical ETA SA Manufacture Horlogere Suisse
Priority to EP10709199.3A priority Critical patent/EP2406690B1/en
Publication of EP2406690A1 publication Critical patent/EP2406690A1/en
Application granted granted Critical
Publication of EP2406690B1 publication Critical patent/EP2406690B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • G—PHYSICS
    • G04—HOROLOGY
    • G04F—TIME-INTERVAL MEASURING
    • G04F7/00—Apparatus for measuring unknown time intervals by non-electric means
    • G04F7/04—Apparatus for measuring unknown time intervals by non-electric means using a mechanical oscillator
    • G04F7/08—Watches or clocks with stop devices, e.g. chronograph
    • G04F7/0842—Watches or clocks with stop devices, e.g. chronograph with start-stop control mechanisms
    • G04F7/0847—Watches or clocks with stop devices, e.g. chronograph with start-stop control mechanisms with column wheel
    • 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
    • G04B13/00—Gearwork
    • G04B13/02—Wheels; Pinions; Spindles; Pivots
    • G04B13/027—Wheels; Pinions; Spindles; Pivots planar toothing: shape and design
    • 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
    • G04B13/00—Gearwork
    • G04B13/02—Wheels; Pinions; Spindles; Pivots
    • G04B13/028—Wheels; Pinions; Spindles; Pivots wheels in which the teeth are conic, contrate, etc; also column wheels construction
    • G—PHYSICS
    • G04—HOROLOGY
    • G04F—TIME-INTERVAL MEASURING
    • G04F7/00—Apparatus for measuring unknown time intervals by non-electric means
    • G04F7/04—Apparatus for measuring unknown time intervals by non-electric means using a mechanical oscillator
    • G04F7/08—Watches or clocks with stop devices, e.g. chronograph
    • G04F7/0842—Watches or clocks with stop devices, e.g. chronograph with start-stop control mechanisms
    • G04F7/0857—Watches or clocks with stop devices, e.g. chronograph with start-stop control mechanisms with single push-button or actuation member for start-stop and reset

Definitions

  • the invention relates to a chronograph column wheel comprising columns whose shape is optimized. It also relates to a chronograph control mechanism and a chronograph watch comprising such a column wheel.
  • An object of the present invention is to overcome the aforementioned drawbacks of the prior art by providing a column wheel for a better distribution of forces on the levers and a higher level of precision in the management of chronograph functions. She achieved by providing a column wheel according to the appended claim 1.
  • the characteristics of the invention make it possible to optimize the general mechanical characteristics of the levers cooperating with the columns: for example, a reduction in friction, wear and energy losses, and a better accuracy of the arrangements of parts and functions are obtained. resulting, etc. This results in better management of the chronograph functions.
  • An advantage of the present invention is that the geometry of the columns makes it possible to precisely define the direction of the force vectors necessary for lifting the levers. This results in a reduction of the forces involved, a better performance, a decrease in wear and increased control of the force to exert on the command "start / stop”.
  • the hub and the arms have a height of between 10% and 50% of the height of the columns; in other words, from a certain height, the rear part of the columns is disengaged.
  • the base is convex so as to be substantially parallel to the circumference of the column wheel.
  • the angle ⁇ is advantageously less than the angle ⁇ of at least 10% and preferably at least 20%. Moreover, the angle ⁇ is preferably between 50 and 53 degrees. It will be understood on the one hand that by choosing a sufficiently salient angle ⁇ ( ⁇ ⁇ 53 °) it is possible to maximize the length of the spout stroke, which allows either to increase the lever lift angle or to increase the length of the lever arm while maintaining the same lift angle. On the other hand, if the angle ⁇ is too salient ( ⁇ ⁇ 50 °), the efforts are concentrated on the angle ⁇ , which can result in an undesirable increase of the losses and the force necessary to actuate a ordered.
  • the invention also provides a chronograph control mechanism comprising a column wheel as previously described and at least one rocker lever whose beak is likely to cooperate with the columns of the column wheel.
  • the invention furthermore provides a chronograph watch comprising a column wheel as previously described and at least one rocking lever whose beak is capable of cooperating with the columns of the column wheel.
  • the lever may for example be a clutch rocker, a hammer or a blocker.
  • FIG. 1 shows a perspective view of a column wheel of known type
  • FIG. 2 is a schematic top view in cross section of a column of a column wheel according to a particular embodiment of the present invention
  • FIG. 3 is a perspective view of the column wheel of FIG. 2; - AT -
  • FIG. 4 is a top view of the column wheel of Figures 2 and 3;
  • FIG. 5 is a side view showing an exemplary integration in a chronograph watch of a column wheel according to a particular embodiment of the present invention
  • FIGS. 6a and 7 to 12 correspond to seven successive snapshots describing the "start" function, that is to say the sequence during which a pressure of the user on a pusher advances by a step of 30 ° the column wheel mounted in a chronograph watch. Advancing the column wheel to raise a hammer to release the chronograph hearts and also actuate the clutch rocker to start the chronograph hand. The seven "snapshots" are taken every 5 °;
  • Figure 1 shows a perspective view of a known type of column wheel.
  • the columns are evenly distributed around the rim.
  • a symmetrical profile is obtained, substantially in the form of a truncated triangle, or a trapezium, whose large base is parallel to the circumference of the column wheel and turned towards the outside of the column. the teeth of the ratchet.
  • Such a symmetrical arrangement has advantages in terms of design and especially the manufacture of columns.
  • Figure 3 shows a perspective view of a column wheel 1 according to a particular embodiment of the invention.
  • Figure 4 shows a top view of the same column wheel.
  • the ratchet 2 is pierced at its center so to provide an assembly element for mounting the wheel 1 in a chronograph device.
  • the ratchet 2 is capped with a superstructure constituted by a hub 21, by arms 20 and by columns 10.
  • the six columns 10 are arranged symmetrically on the periphery of the ratchet 2 thus giving the superstructure 10, 20, 21 a symmetry of rotation of order 6.
  • the ratchet 2 has 12 teeth regularly spaced from each other by 30 °.
  • the column wheel of the present example is a two-stroke column wheel.
  • the arrow R in FIG. 4 illustrates the direction of rotation of the column wheel 1, ie the clockwise direction.
  • Figure 2 shows a cross section of a column 10. It is observed that the section of the column generally has a non-isosceles triangle shape truncated in the area of the summit. The three sides of the triangle are the large base 14, located near the edge of the ratchet 2, the leading edge 12, and the trailing edge 13. The leading edge 12 is so designated because it is the first to come into contact with the spout of the lever (s) of the chronograph mechanism during the rotation of the wheel 1. The trailing edge 13 designates the last face to contact the lever before the latter plunges into the inter column space 22 and is free.
  • the two angles ⁇ and ⁇ adjacent to the large base 14 are rounded. As will be seen below, this feature facilitates the progression of the nozzle of the lever cooperating with the column during operation of the chronograph.
  • the truncated or trapezoidal triangle shape of the cross section of a column is asymmetrical, with an angle ⁇ less than the angle ⁇ , where the angle ⁇ represents the angle formed between the large base 14 and the leading edge 12, while the angle ⁇ represents the angle formed between the large base 14 and the edge of According to such an arrangement, the leading edge 12 is substantially projected forward (in the direction of rotation R) in comparison with a conventional symmetrical arrangement as shown in FIG.
  • the angles ⁇ and ⁇ are 51, 5 degrees and 69.5 degrees respectively. According to various alternative embodiments, the angle ⁇ may vary, but it is preferably between 50 and 53 degrees. In the present example, the angle ⁇ is about 26% lower than the angle ⁇ . According to various embodiments, the distance between the two angles is preferably between 23 and 28%.
  • FIGS. 2, 3 and 4 also make it possible to clearly visualize the hub 21 and the arms 20 serving to reinforce the columns 10.
  • the arms 20 extend between the columns and the hub 21 which is centered on the axis of the wheel. The arms and the hub make it possible to stiffen the construction of the wheel in general, and the columns in particular. This stiffening of the columns allows operation with a particularly high level of precision.
  • the hub 21 and the arms 20 have a height less than that of the columns 10, so that the upper part of the columns protrudes above the rest of the superstructure.
  • the height of the hub and the arms will preferably be between 10% and 50% of the height of the columns.
  • the column wheel according to the invention is preferably manufactured entirely on a lathe. A manufacture without recovery on a lathe allows to give the piece a remarkable precision.
  • FIG. 5 shows an exemplary implementation of a column wheel 1 according to the invention in a chronograph control mechanism.
  • FIG. 5 shows a shuttle, or ratchet,
  • Figures 6a and 6b are top views which correspond to the perspective view of Figure 5.
  • Figure 6b is more general than Figure 6a to show also other elements of a chronograph. These elements include a jumper 26 whose spout is intended to cooperate with the teeth of the ratchet 2.
  • Figure 6b also shows that the blocking lever 30 is integral with a shoe 32 and that it is arranged to cooperate with the column wheel to alternately brake and release the chronograph mobile (referenced 5).
  • the hammer lever 40 it is seen that it is provided with a spout 41 capable of cooperating with the columns of the column wheel.
  • the hammer 40 is provided for acting on the cores 43 to control and manage the chronograph return to zero function.
  • FIG. 6b shows the hammer 40 in a lowered position where it co-operates with the cores 43. It can still be seen in FIG. 6b that the lowered position of the hammer corresponds to a position of the column wheel which allows the spout 41 of the hammer lever 40 that plunges in the gap between two columns 10. This position of the column wheel, identified as 0 degrees, serves as a reference.
  • Figures 6a and 7 to 12 show the evolution of the position of the wheel, in steps of 5 degrees, to a position of 30 degrees ( Figure 12).
  • the snapshot shown in FIG. 6a corresponds to the 0 ° position of the column wheel.
  • the hammer is lowered against the cores and the hammer beak 41 is positioned freely between two columns 10.
  • the spout 51 of the latch clutch 50 is in abutment against the outer face of a column 10.
  • the clutch rocker is thus lifted which has the effect of maintaining a reference 28 spaced apart from the chronograph wheel 5, and thus to disengage the latter.
  • the hammer 40 and the blocking lever 30 are shaped to cooperate with each other. so that the blocker is held up regardless of the position of the column wheel as long as the hammer is lowered against the cores 43.
  • the snapshot shown in FIG. 7 corresponds to the 5 ° position of the column wheel.
  • the hammer 40 and always lowered against the cores 43 and the blocker 30 is always lifted.
  • the hammer nose 41 initiates contact with the leading edge of a column A.
  • the spout 41 is substantially tangent to the leading edge, and the tip of the spout is behind the column; above the arm connecting the column to the hub.
  • This position is made possible by the fact that, on the one hand, the hub and the arms of the column wheel have a height less than that of the columns and, on the other hand, that the hammer lever 40 is placed above other levers, high enough to allow the passage of its beak over the arms.
  • the snapshot shown in Figure 9 corresponds to the 15 ° position of the column wheel. It can be seen that in this position the lifting of the hammer beak 41 is accentuated by the action of the column A. The hammer has now completely released the cores 43. It can also be seen that the clutch lever 51 arrives near the rear area of the large base 14 of the column A. On the other hand, the hammer 40 is release the blocker 31, but simultaneously the blocker beak 31 initiates contact with the outer face of the column B.
  • the snapshot shown in FIG. 11 corresponds to the 25 ° position of the column wheel. It can be seen that in this position, the hammer nose 41 bears against the large base 14 of the column A. The clutch rocker nose 51 has plunged between two columns, but the chronograph mobile 5 is not yet engaged. The blocker nose 31 is still resting against the large base 14 of the column B.
  • the snapshot shown in Figure 12 corresponds to the 30 ° position of the column wheel. It can be seen that in this position, the clutch lever 51 is always lowered between two columns and the gear 28 now meshes with the chronograph mobile which is thus engaged, which corresponds to the start ("start") of the chronograph.
  • the blocking nose 31 remains resting against the large base 14 of the column B. It can be seen from the foregoing, and more particularly from FIGS. 7 to 11, that the stroke made by the hammer lever's nose along the edge
  • the driving force of a column is larger than if the leading edge 12 and the trailing edge 13 were symmetrical. This spreading of the displacement over a greater distance makes it possible to reduce the applied force.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Measurement Of Unknown Time Intervals (AREA)

Abstract

The invention relates to a column wheel (1) for a chronograph, comprising: a ratchet (2) provided with a plurality of teeth (3), the shape of which defines a rotational axis for the column wheel; a superstructure coaxial to the wheel and having rotation symmetry of around n >= 3, the peripheral portion of the superstructure defining n columns (10) parallel to the wheel axis and arranged substantially along the edge of the ratchet (2), each column having an outer portion with a cross-section substantially shaped like a truncated triangle with a base substantially parallel to the circumference of the wheel and a front side (12), referred to as a leading edge, and a rear side (13), referred to as a trailing edge, extending from the base towards the inside of the wheel. The column wheel is characterised in that said cross-section is asymmetrical, with a first angle α between the leading edge (12) and the base (14) being lower than a second angle β between the base and the trailing edge (13).

Description

ROU E A COLON N ES POU R CH RONOG RAPH E, COLON N OUS R RONOG RAPH E,
CH RONOG RAP H E ET MONTRE-CH RONOG RAPH ECH RONOG RAP H E AND WATCH-CH RONOG RAPH E
COM PORTANT U N E TELLE ROU ECOMBUSTING A N EAR WHEEL
DOMAINE TECHNIQUE DE L'INVENTIONTECHNICAL FIELD OF THE INVENTION
L'invention se rapporte à une roue à colonnes pour chronographe comportant des colonnes dont la forme est optimisée. Elle concerne également un mécanisme de commande pour chronographe ainsi qu'une montre-chronographe comportant une telle roue à colonnes.The invention relates to a chronograph column wheel comprising columns whose shape is optimized. It also relates to a chronograph control mechanism and a chronograph watch comprising such a column wheel.
ETAT DE LA TECHNIQUE ANTERIEURESTATE OF THE PRIOR ART
Dans une montre-chronographe, afin de commander et de gérer les différentes fonctions du chronographe, il est connu d'utiliser une roue à colonnes. Les colonnes de la roue à colonnes présentent classiquement une section transversale souvent sensiblement en forme de triangle tronqué (voir figure 1 ). Ce type de forme permet de fabriquer la roue et les colonnes de façon simple et peu coûteuse. Cependant, les différents leviers soumis à l'action des colonnes sont soumis à des efforts parfois trop importants, augmentant ainsi les niveaux de friction et d'usure. De plus, le niveau de précision, lors de la mise en œuvre des différentes fonctions du chronographe, n'est pas toujours optimal.In a chronograph watch, in order to control and manage the various functions of the chronograph, it is known to use a column wheel. Column columns of the column wheel typically have a cross section often substantially shaped truncated triangle (see Figure 1). This type of shape makes it possible to manufacture the wheel and the columns in a simple and inexpensive way. However, the various levers subjected to the action of the columns are subjected to efforts sometimes too important, thus increasing the levels of friction and wear. In addition, the level of precision, when implementing the various functions of the chronograph, is not always optimal.
EXPOSE DE L'INVENTIONSUMMARY OF THE INVENTION
Un but de la présente invention est de remédier aux inconvénients susmentionnés de l'art antérieur en fournissant une roue à colonnes permettant une meilleure répartition des efforts sur les leviers et un niveau de précision supérieur dans la gestion des fonctions chronographes. Elle atteint ce but en fournissant une roue à colonnes conforme à la revendication 1 annexée.An object of the present invention is to overcome the aforementioned drawbacks of the prior art by providing a column wheel for a better distribution of forces on the levers and a higher level of precision in the management of chronograph functions. She achieved by providing a column wheel according to the appended claim 1.
On comprendra que c'est par rapport au sens de rotation de la roue à colonnes que sont définis un côté avant et un côté arrière de la section transversale en forme de triangle tronqué.It will be understood that it is with respect to the direction of rotation of the column wheel that a front side and a rear side of the truncated triangle shaped cross-section are defined.
Les caractéristiques de l'invention permettent d'optimiser les caractéristiques mécaniques générales des leviers coopérant avec les colonnes: on obtient par exemple une réduction du frottement, de l'usure et des pertes énergétiques, et une meilleure précision des agencements de pièces et des fonctions résultantes, etc. On obtient de ce fait une meilleure gestion des fonctions du chronographe.The characteristics of the invention make it possible to optimize the general mechanical characteristics of the levers cooperating with the columns: for example, a reduction in friction, wear and energy losses, and a better accuracy of the arrangements of parts and functions are obtained. resulting, etc. This results in better management of the chronograph functions.
Un avantage de la présente invention est que la géométrie des colonnes permet de définir précisément la direction des vecteurs de force nécessaires à la levée des leviers. Il en résulte une diminution des efforts mis en jeu, un meilleur rendement, une diminution de l'usure ainsi qu'une maîtrise accrue de la force à exercer sur la commande « start/stop ».An advantage of the present invention is that the geometry of the columns makes it possible to precisely define the direction of the force vectors necessary for lifting the levers. This results in a reduction of the forces involved, a better performance, a decrease in wear and increased control of the force to exert on the command "start / stop".
De plus, selon la présente invention, le moyeu et les bras ont une hauteur comprise entre 10% et 50% de la hauteur des colonnes ; autrement dit, à partir d'une certaine hauteur, la partie arrière des colonnes est dégagée. Un avantage de cette caractéristique est qu'elle permet d'allonger la course du bec d'un levier en plongée comme en levée, pour autant que ce levier soit monté suffisamment haut pour permettre le passage du bec au dessus des bras et du moyeu de la roue à colonnes.In addition, according to the present invention, the hub and the arms have a height of between 10% and 50% of the height of the columns; in other words, from a certain height, the rear part of the columns is disengaged. An advantage of this feature is that it allows to lengthen the stroke of the nose of a lever in diving as in lifting, provided that the lever is mounted high enough to allow the passage of the spout over the arms and the hub of the column wheel.
Selon un mode de réalisation avantageux, la base est convexe de manière à être sensiblement parallèle à la circonférence de la roue à colonne.According to an advantageous embodiment, the base is convex so as to be substantially parallel to the circumference of the column wheel.
L'angle α est avantageusement inférieur à l'angle β d'au moins 10% et de préférence d'au moins 20 %. Par ailleurs, l'angle α est de préférence compris entre 50 et 53 degrés. On comprendra d'une part qu'en choisissant un angle α suffisamment saillant (α < 53°) il est possible de maximiser la longueur de la course du bec, ce qui permet soit d'augmenter l'angle de levée des leviers soit d'augmenter la longueur du bras de levier tout en gardant le même angle de levée. En revanche, si l'angle α est trop saillant (α < 50°), les efforts se concentrent sur la pointe de l'angle α, ce qui peut se traduire par une augmentation indésirable des pertes et de la force nécessaire pour actionner une commande.The angle α is advantageously less than the angle β of at least 10% and preferably at least 20%. Moreover, the angle α is preferably between 50 and 53 degrees. It will be understood on the one hand that by choosing a sufficiently salient angle α (α <53 °) it is possible to maximize the length of the spout stroke, which allows either to increase the lever lift angle or to increase the length of the lever arm while maintaining the same lift angle. On the other hand, if the angle α is too salient (α <50 °), the efforts are concentrated on the angle α, which can result in an undesirable increase of the losses and the force necessary to actuate a ordered.
L'invention prévoit également un mécanisme de commande pour chronographe comportant une roue à colonnes telle que préalablement décrite et au moins un levier basculant dont le bec est susceptible de coopérer avec les colonnes de la roue à colonnes.The invention also provides a chronograph control mechanism comprising a column wheel as previously described and at least one rocker lever whose beak is likely to cooperate with the columns of the column wheel.
L'invention prévoit par ailleurs une montre-chronographe comportant une roue à colonnes telle que préalablement décrite et au moins un levier basculant dont le bec est susceptible de coopérer avec les colonnes de la roue à colonnes. Le levier peut par exemple être une bascule d'embrayage, un marteau ou un bloqueur.The invention furthermore provides a chronograph watch comprising a column wheel as previously described and at least one rocking lever whose beak is capable of cooperating with the columns of the column wheel. The lever may for example be a clutch rocker, a hammer or a blocker.
BREVE DESCRIPTION DES DESSINSBRIEF DESCRIPTION OF THE DRAWINGS
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 :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:
- la figure 1 montre une vue en perspective d'une roue à colonnes de type connu ;- Figure 1 shows a perspective view of a column wheel of known type;
- la figure 2 est une vue schématique de dessus en section transversale d'une colonne d'une roue à colonnes selon un mode de réalisation particulier de la présente invention ;FIG. 2 is a schematic top view in cross section of a column of a column wheel according to a particular embodiment of the present invention;
- la figure 3 est une vue en perspective de la roue à colonne de la figure 2 ; - A -FIG. 3 is a perspective view of the column wheel of FIG. 2; - AT -
- la figure 4 est une vue de dessus de la roue à colonnes des figures 2 et 3 ;- Figure 4 is a top view of the column wheel of Figures 2 and 3;
- la figure 5 est une vue côté rouage présentant un exemple d'intégration dans une montre-chronographe d'une roue à colonne selon un mode de réalisation particulier de la présente invention ;FIG. 5 is a side view showing an exemplary integration in a chronograph watch of a column wheel according to a particular embodiment of the present invention;
- les figures 6a et 7 à 12 correspondent à sept instantanés successifs décrivant la fonction « start », c'est-à-dire la séquence durant laquelle une pression de l'usager sur un poussoir fait avancer d'un pas de 30° la roue à colonnes montée dans une montre-chronographe. L'avance de la roue à colonnes faisant se soulever un marteau pour libérer les cœurs du chronographe et en actionnant également la bascule d'embrayage pour faire démarrer l'aiguille de chronographe. Les sept « instantanés » sont pris tous les 5° ;FIGS. 6a and 7 to 12 correspond to seven successive snapshots describing the "start" function, that is to say the sequence during which a pressure of the user on a pusher advances by a step of 30 ° the column wheel mounted in a chronograph watch. Advancing the column wheel to raise a hammer to release the chronograph hearts and also actuate the clutch rocker to start the chronograph hand. The seven "snapshots" are taken every 5 °;
- la figure 6b décrit le même instant que la figure 6a, mais montre l'ensemble du mécanisme.- Figure 6b describes the same time as Figure 6a, but shows the entire mechanism.
DESCRIPTION DETAILLEE D'UN MODE DE REALISATIONDETAILED DESCRIPTION OF AN EMBODIMENT
La figure 1 montre une vue en perspective d'une roue à colonnes de type connu. Les colonnes sont réparties uniformément sur le pourtour du rochet. En considérant une coupe transversale d'une colonne, on obtient un profil symétrique, sensiblement en forme de triangle tronqué, ou de trapèze, dont la grande base est parallèle à la circonférence de la roue à colonnes et tournée vers l'extérieur du côté de la denture du rochet. Une telle disposition symétrique présente des avantages au niveau de la conception et surtout de la fabrication des colonnes.Figure 1 shows a perspective view of a known type of column wheel. The columns are evenly distributed around the rim. Considering a cross section of a column, a symmetrical profile is obtained, substantially in the form of a truncated triangle, or a trapezium, whose large base is parallel to the circumference of the column wheel and turned towards the outside of the column. the teeth of the ratchet. Such a symmetrical arrangement has advantages in terms of design and especially the manufacture of columns.
La figure 3 présente une vue en perspective d'une roue à colonnes 1 selon un mode de réalisation particulier de l'invention. La figure 4 présente une vue de dessus de la même roue à colonnes. Ces deux figures permettent de bien visualiser le rochet 2 pourvu de dents 3 réparties symétriquement sur son pourtour. Le rochet 2 est percé en son centre afin de prévoir un élément d'assemblage pour montage de la roue 1 dans un dispositif chronographe. Le rochet 2 est coiffé d'une superstructure constituée par un moyeu 21 , par des bras 20 et par des colonnes 10. Les six colonnes 10 sont disposées symétriquement sur le pourtour du rochet 2 donnant ainsi à la superstructure 10, 20, 21 une symétrie de rotation d'ordre 6. On peut également vérifier sur la figure 4 que le rochet 2 compte 12 dents régulièrement espacées les unes des autres de 30°. L'homme du métier comprendra donc que la roue à colonnes du présent exemple est une roue à colonne à deux temps. Toutefois, la présente invention s'applique naturellement tout aussi bien aux roues à colonnes à trois temps. La flèche R sur la figure 4 illustre le sens de rotation de la roue à colonnes 1 , soit le sens horaire.Figure 3 shows a perspective view of a column wheel 1 according to a particular embodiment of the invention. Figure 4 shows a top view of the same column wheel. These two figures make it possible to clearly view the ratchet 2 provided with teeth 3 distributed symmetrically around its periphery. The ratchet 2 is pierced at its center so to provide an assembly element for mounting the wheel 1 in a chronograph device. The ratchet 2 is capped with a superstructure constituted by a hub 21, by arms 20 and by columns 10. The six columns 10 are arranged symmetrically on the periphery of the ratchet 2 thus giving the superstructure 10, 20, 21 a symmetry of rotation of order 6. It can also be verified in Figure 4 that the ratchet 2 has 12 teeth regularly spaced from each other by 30 °. Those skilled in the art will understand that the column wheel of the present example is a two-stroke column wheel. However, the present invention naturally applies equally well to three-stroke column wheels. The arrow R in FIG. 4 illustrates the direction of rotation of the column wheel 1, ie the clockwise direction.
La figure 2 montre une section transversale d'une colonne 10. On y observe que la section de la colonne présente de façon générale une forme de triangle non isocèle tronqué dans la zone du sommet. Les trois côtés du triangle sont la grande base 14, située à proximité du rebord du rochet 2, le bord d'attaque 12, et le bord de fuite 13. Le bord d'attaque 12 est ainsi désigné du fait qu'il est le premier à entrer en contact avec le bec du ou des leviers du mécanisme chronographe lors de la rotation de la roue 1. Le bord de fuite 13 désigne quant à lui la dernière face à contacter le bec de levier avant que ce dernier plonge dans l'espace inter colonnes 22 et se retrouve libre.Figure 2 shows a cross section of a column 10. It is observed that the section of the column generally has a non-isosceles triangle shape truncated in the area of the summit. The three sides of the triangle are the large base 14, located near the edge of the ratchet 2, the leading edge 12, and the trailing edge 13. The leading edge 12 is so designated because it is the first to come into contact with the spout of the lever (s) of the chronograph mechanism during the rotation of the wheel 1. The trailing edge 13 designates the last face to contact the lever before the latter plunges into the inter column space 22 and is free.
Les deux angles α et β adjacents à la grande base 14 sont arrondis. Comme on le verra plus loin, cette caractéristique permet de faciliter la progression du bec du levier coopérant avec la colonne lors du fonctionnement du chronographe.The two angles α and β adjacent to the large base 14 are rounded. As will be seen below, this feature facilitates the progression of the nozzle of the lever cooperating with the column during operation of the chronograph.
En se référant aux figures, on remarque que la forme en triangle tronqué ou en trapèze de la section transversale d'une colonne est asymétrique, avec un angle α inférieur à l'angle β, où l'angle α représente l'angle formé entre la grande base 14 et le bord d'attaque 12, tandis que l'angle β représente l'angle formé entre la grande base 14 et le bord de fuite 13. Selon un tel agencement, le bord d'attaque 12 est sensiblement projeté vers l'avant (selon le sens de rotation R) en comparaison avec un agencement symétrique classique tel que représenté à la figure 1.Referring to the figures, it is noted that the truncated or trapezoidal triangle shape of the cross section of a column is asymmetrical, with an angle α less than the angle β, where the angle α represents the angle formed between the large base 14 and the leading edge 12, while the angle β represents the angle formed between the large base 14 and the edge of According to such an arrangement, the leading edge 12 is substantially projected forward (in the direction of rotation R) in comparison with a conventional symmetrical arrangement as shown in FIG.
Dans l'exemple illustré, les angles α et β valent respectivement 51 ,5 degrés et 69,5 degrés. Selon diverses variantes de réalisation, l'angle α peut varier, mais il est de préférence compris entre 50 et 53 degrés. Dans le présent exemple, l'angle α est inférieur d'environ 26% à l'angle β. Selon diverses variantes de réalisation, l'écart entre les deux angles se cantone de préférence entre 23 et 28%. Les figures 2, 3 et 4 permettent également de bien visualiser le moyeu 21 et les bras 20 servant à renforcer les colonnes 10. Les bras 20 s'étendent entre les colonnes et le moyeu 21 qui est centré sur l'axe de la roue. Les bras et le moyeu permettent de rigidifier la construction de la roue en général, et les colonnes en particulier. Cette rigidification des colonnes permet un fonctionnement avec un niveau de précision particulièrement élevé. Conformément à l'invention, le moyeu 21 et les bras 20 ont une hauteur inférieure à celle des colonnes 10, de sorte que la partie supérieure des colonnes fait saillie au dessus du reste de la superstructure. La hauteur du moyeu et des bras sera de préférence comprise entre 10% et 50% de la hauteur des colonnes. On fabrique de préférence entièrement la roue à colonnes selon l'invention sur une décolleteuse. Une fabrication sans reprise sur une décolleteuse permet de donner à la pièce une précision remarquable.In the illustrated example, the angles α and β are 51, 5 degrees and 69.5 degrees respectively. According to various alternative embodiments, the angle α may vary, but it is preferably between 50 and 53 degrees. In the present example, the angle α is about 26% lower than the angle β. According to various embodiments, the distance between the two angles is preferably between 23 and 28%. FIGS. 2, 3 and 4 also make it possible to clearly visualize the hub 21 and the arms 20 serving to reinforce the columns 10. The arms 20 extend between the columns and the hub 21 which is centered on the axis of the wheel. The arms and the hub make it possible to stiffen the construction of the wheel in general, and the columns in particular. This stiffening of the columns allows operation with a particularly high level of precision. According to the invention, the hub 21 and the arms 20 have a height less than that of the columns 10, so that the upper part of the columns protrudes above the rest of the superstructure. The height of the hub and the arms will preferably be between 10% and 50% of the height of the columns. The column wheel according to the invention is preferably manufactured entirely on a lathe. A manufacture without recovery on a lathe allows to give the piece a remarkable precision.
La figure 5 montre un exemple d'implémentation d'une roue à colonne 1 selon l'invention dans un mécanisme de commande de chronographe. Outre les composants de la roue à colonnes déjà décrits en relation avec les figures 3 et 4, la figure 5 montre une navette, ou cliquet,FIG. 5 shows an exemplary implementation of a column wheel 1 according to the invention in a chronograph control mechanism. In addition to the components of the column wheel already described in connection with FIGS. 3 and 4, FIG. 5 shows a shuttle, or ratchet,
24 qui est arrangée pour être actionnée par un poussoir (non représenté) et pour agir par son bec 25 sur une dent dur rochet 2 de manière à faire avancer la roue à colonne de la valeur angulaire d'une dent de rochet, un levier 40 de marteau secondes/minutes monté pour pivoter autour d'un axe 42, une bascule d'embrayage 50 avec un bec 51 et, enfin, un levier de bloqueur 30.24 which is arranged to be actuated by a pusher (not shown) and to act by its spout 25 on a ratchet hard tooth 2 so as to advance the column wheel by the angular value of a ratchet tooth, a lever 40 hammer seconds / minutes mounted to rotate around an axis 42, a clutch rocker 50 with a spout 51 and, finally, a clutch lever 30.
Les figures 6a et 6b sont des vues de dessus qui correspondent à la vue en perspective de la figure 5. La figure 6b est plus générale que la figure 6a de manière montrer également d'autres éléments d'un chronographe. Ces éléments sont notamment un sautoir 26 dont le bec est prévu pour coopérer avec les dents du rochet 2. D'autre part, la figure 6b montre également que le levier de bloqueur 30 est solidaire d'un sabot 32 et qu'il est agencé pour coopérer avec la roue à colonnes pour alternativement freiner et libérer le mobile de chronographe (référencé 5). Quant au levier de marteau 40, on voit qu'il est muni d'un bec 41 susceptible de coopérer avec les colonnes de la roue à colonnes. Le marteau 40 est prévu pouragir sur les cœurs 43 pour commander et gérer la fonction de retour à zéro du chronographe. La figure 6b représente le marteau 40 dans une position abaissée où il coopère avec les cœurs 43. On voit encore sur la figure 6b que la position abaissée du marteau correspond à une position de la roue à colonnes qui permet au bec 41 du levier de marteau 40 de plongé dans l'intervalle existant entre deux colonnes 10. Cette position de la roue à colonnes, identifiée comme 0 degré, sert de référence. Les figures 6a, et 7 à 12 montrent l'évolution de la position de la roue, par pas de 5 degrés, jusqu'à une position de 30 degrés (figure 12).Figures 6a and 6b are top views which correspond to the perspective view of Figure 5. Figure 6b is more general than Figure 6a to show also other elements of a chronograph. These elements include a jumper 26 whose spout is intended to cooperate with the teeth of the ratchet 2. On the other hand, Figure 6b also shows that the blocking lever 30 is integral with a shoe 32 and that it is arranged to cooperate with the column wheel to alternately brake and release the chronograph mobile (referenced 5). As for the hammer lever 40, it is seen that it is provided with a spout 41 capable of cooperating with the columns of the column wheel. The hammer 40 is provided for acting on the cores 43 to control and manage the chronograph return to zero function. FIG. 6b shows the hammer 40 in a lowered position where it co-operates with the cores 43. It can still be seen in FIG. 6b that the lowered position of the hammer corresponds to a position of the column wheel which allows the spout 41 of the hammer lever 40 that plunges in the gap between two columns 10. This position of the column wheel, identified as 0 degrees, serves as a reference. Figures 6a and 7 to 12 show the evolution of the position of the wheel, in steps of 5 degrees, to a position of 30 degrees (Figure 12).
L'instantané représenté à la figure 6a correspond à la position 0° de la roue à colonnes. Dans cette position, comme déjà mentionné, le marteau est abaissé contre les cœurs et le bec de marteau 41 est positionné librement entre deux colonnes 10. On voit encore sur la figure 6a qu'en position 0°, le bec 51 de la bascule d'embrayage 50 est en appui contre la face extérieur d'une colonne 10. La bascule d'embrayage est donc levée ce qui a pour effet de maintenir un renvoi 28 écarté de la roue de chronographe 5, et donc de débrayer cette dernière. Précisons encore que le marteau 40 et le levier de bloqueur 30 sont conformés pour coopérer de façon à ce que le bloqueur soit maintenu levé indépendamment de la position de la roue à colonnes tant que le marteau est abaissé contre les cœurs 43.The snapshot shown in FIG. 6a corresponds to the 0 ° position of the column wheel. In this position, as already mentioned, the hammer is lowered against the cores and the hammer beak 41 is positioned freely between two columns 10. It is still seen in FIG. 6a that in the 0 ° position, the spout 51 of the latch clutch 50 is in abutment against the outer face of a column 10. The clutch rocker is thus lifted which has the effect of maintaining a reference 28 spaced apart from the chronograph wheel 5, and thus to disengage the latter. It should be further specified that the hammer 40 and the blocking lever 30 are shaped to cooperate with each other. so that the blocker is held up regardless of the position of the column wheel as long as the hammer is lowered against the cores 43.
L'instantané représenté à la figure 7 correspond à la position 5° de la roue à colonnes. On voit que dans cette position, le marteau 40 et toujours abaissé contre les cœurs 43 et le bloqueur 30 est donc toujours levé. Toutefois, on voit que le bec de marteau 41 amorce un contact avec le bord d'attaque d'une colonne A. Le bec 41 est pratiquement tangent au bord d'attaque, et la pointe du bec se trouve derrière la colonne ; au dessus du bras reliant la colonne au moyeu. Cette position est rendue possible par le fait, d'une part, que le moyeu et les bras de la roue à colonnes ont une hauteur inférieure à celle des colonnes et, d'autre part, que le levier de marteau 40 est placé au dessus des autres leviers, suffisamment haut pour permettre le passage de son bec au dessus des bras. On comprend donc que la forme des colonnes et de la superstructure selon l'invention permet de répartir le plus possible les forces agissant sur le bec 41. Enfin, comme c'était déjà le cas à la figure 6a, le bec 51 de la bascule d'embrayage 50 est en appui contre la face extérieure de la colonne A.The snapshot shown in FIG. 7 corresponds to the 5 ° position of the column wheel. We see that in this position, the hammer 40 and always lowered against the cores 43 and the blocker 30 is always lifted. However, it is seen that the hammer nose 41 initiates contact with the leading edge of a column A. The spout 41 is substantially tangent to the leading edge, and the tip of the spout is behind the column; above the arm connecting the column to the hub. This position is made possible by the fact that, on the one hand, the hub and the arms of the column wheel have a height less than that of the columns and, on the other hand, that the hammer lever 40 is placed above other levers, high enough to allow the passage of its beak over the arms. It is therefore understood that the shape of the columns and the superstructure according to the invention allows to distribute as much as possible the forces acting on the spout 41. Finally, as was already the case in Figure 6a, the spout 51 of the rocker clutch 50 is in abutment against the outer face of the column A.
L'instantané représenté à la figure 8 correspond à la position 10° de la roue à colonnes. On voit que dans cette position, le bec de marteau 41 est légèrement repoussé par le bord d'attaque de la colonne A et le marteau s'est légèrement détaché des cœurs 43. On voit également que le bec de bascule d'embrayage 51 glisse toujours contre la grande base de cette même colonne. Le bec de bloqueur 31 est sur le point d'amorcer un contact avec la colonne B.The snapshot shown in Figure 8 corresponds to the 10 ° position of the column wheel. It can be seen that in this position, the hammer nose 41 is slightly pushed back by the leading edge of the column A and the hammer has slightly detached from the cores 43. It can also be seen that the clutch rocker nose 51 slides. always against the great base of this same column. Blocker beak 31 is about to initiate contact with column B.
L'instantané représenté à la figure 9 correspond à la position 15° de la roue à colonnes. On voit que dans cette position, la levée du bec de marteau 41 s'accentue grâce à l'action de la colonne A. Le marteau à maintenant complètement libéré les cœurs 43. On voit également que le bec de bascule d'embrayage 51 arrive à proximité de la zone arrière de la grande base 14 de la colonne A. D'autre part, le marteau 40 est entrain de libérer le bloqueur 31 , mais simultanément le bec de bloqueur 31 amorce un contact avec la face extérieure de la colonne B.The snapshot shown in Figure 9 corresponds to the 15 ° position of the column wheel. It can be seen that in this position the lifting of the hammer beak 41 is accentuated by the action of the column A. The hammer has now completely released the cores 43. It can also be seen that the clutch lever 51 arrives near the rear area of the large base 14 of the column A. On the other hand, the hammer 40 is release the blocker 31, but simultaneously the blocker beak 31 initiates contact with the outer face of the column B.
L'instantané représenté à la figure 10 correspond à la position 20° de la roue à colonnes. On voit que dans cette position, la levée du bec de marteau 41 est presque achevée. On voit également que le bec de bascule d'embrayage 51 est sur le point de plonger. D'autre part, le bec de bloqueurThe snapshot shown in Figure 10 corresponds to the 20 ° position of the column wheel. We see that in this position, the lifting of the hammer beak 41 is almost completed. It is also seen that the clutch rocker nose 51 is about to plunge. On the other hand, the blocker's beak
31 est maintenant bien en appui contre la grande base 14 de la colonne B.31 is now in support against the large base 14 of column B.
L'instantané représenté à la figure 1 1 correspond à la position 25° de la roue à colonnes. On voit que dans cette position, le bec de marteau 41 est en appui contre la grande base 14 de la colonne A. Le bec de bascule d'embrayage 51 a plongé entre deux colonnes, mais le mobile de chronographe 5 n'est pas encore embrayé. Le bec de bloqueur 31 est toujours en appui contre la grande base 14 de la colonne B.The snapshot shown in FIG. 11 corresponds to the 25 ° position of the column wheel. It can be seen that in this position, the hammer nose 41 bears against the large base 14 of the column A. The clutch rocker nose 51 has plunged between two columns, but the chronograph mobile 5 is not yet engaged. The blocker nose 31 is still resting against the large base 14 of the column B.
L'instantané représenté à la figure 12 correspond à la position 30° de la roue à colonnes. On voit que dans cette position, le bec de bascule d'embrayage 51 est toujours abaissé entre deux colonnes et le renvoi 28 engrène maintenant avec le mobile de chronographe qui est donc embrayé, ce qui correspond au départ (« start ») du chronographe. Le bec de bloqueur 31 reste en appui contre la grande base 14 de la colonne B. On constate de ce qui précède, et tout particulièrement des figures 7 à 1 1 , que la course effectuée par le bec du levier de marteau le long du bord d'attaque d'une colonne est plus grande que si le bord d'attaque 12 et le bord de fuite 13 était symétrique. Cet étalement du déplacement sur une plus grande distance permet de réduire la force appliquée. Ces caractéristiques permettent d'optimiser les caractéristiques mécaniques générales des leviers: on obtient par exemple une réduction du frottement, de l'usure et des pertes énergétiques, et une meilleure précision des agencements de pièces et des fonctions résultantes, etc. En particulier, l'exécution de la levée et de la plongée des leviers 30, 40 et 50 par les colonnes asymétriques avec bord d'attaque avancé sont réalisées de façon très précise avec une synchronisation optimisée des déplacements respectifs des pièces pendant la réalisation des fonctions du chronographe. On obtient de ce fait une meilleure gestion des fonctions du chronographe. Cette géométrie des colonnes permet de définir précisément la direction des vecteurs de forces nécessaires à la levée des leviers. On obtient ainsi une diminution des efforts mis en jeu, un meilleur rendement, une diminution de l'usure ainsi qu'une maîtrise accrue de la force à exercer sur la commande « start/stop ».The snapshot shown in Figure 12 corresponds to the 30 ° position of the column wheel. It can be seen that in this position, the clutch lever 51 is always lowered between two columns and the gear 28 now meshes with the chronograph mobile which is thus engaged, which corresponds to the start ("start") of the chronograph. The blocking nose 31 remains resting against the large base 14 of the column B. It can be seen from the foregoing, and more particularly from FIGS. 7 to 11, that the stroke made by the hammer lever's nose along the edge The driving force of a column is larger than if the leading edge 12 and the trailing edge 13 were symmetrical. This spreading of the displacement over a greater distance makes it possible to reduce the applied force. These characteristics make it possible to optimize the general mechanical characteristics of the levers: for example, a reduction in friction, wear and energy losses, and a better accuracy of the arrangements of parts and the resulting functions, etc. are obtained. In particular, the execution of the lifting and the dive of the levers 30, 40 and 50 by asymmetric columns with advanced leading edge are carried out very precisely with optimized synchronization of displacements respective parts during the performance of the chronograph functions. This results in better management of the chronograph functions. This geometry of the columns makes it possible to precisely define the direction of the vectors of forces necessary for the lifting of the levers. A reduction in the forces involved, a better efficiency, a reduction in wear and an increased control of the force to be exerted on the "start / stop" command are thus obtained.
On comprendra en outre 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'invention et ses différentes variantes viennent d'être décrites en relation avec un exemple particulier avec six colonnes. Néanmoins, il est évident pour un homme du métier que l'invention peut être étendue à un mode de réalisation avec un nombre différent de colonnes, notamment avec huit colonnes. It will be further understood that various modifications and / or improvements obvious to those 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 invention and its various variants have just been described in connection with a particular example with six columns. Nevertheless, it is obvious to a person skilled in the art that the invention can be extended to an embodiment with a different number of columns, in particular with eight columns.

Claims

REVEN D I CATIONS REVEN DI CATIONS
1. Roue à colonnes (1 ) pour chronographe comportant :1. Column wheel (1) for a chronograph comprising:
- un rochet (2) pourvu d'une pluralité de dents (3) dont la forme définit un sens de rotation pour la roue à colonnes ;- a ratchet (2) provided with a plurality of teeth (3) whose shape defines a direction of rotation for the column wheel;
- une superstructure co-axiale à la roue et présentant une symétrie de rotation d'ordre n >=3, la partie périphérique de la superstructure formant n colonnes (10) parallèles à l'axe de la roue et disposées sensiblement le long du pourtour du rochet (2), chaque colonne comportant une partie extérieure dont la section transversale présente sensiblement la forme d'un triangle tronqué avec une base sensiblement parallèle à la circonférence de la roue et un côté avant (12), dit bord d'attaque, et un côté arrière (13), dit bord de fuite, s'étendant à partir de la base en direction de l'intérieur de la roue ; caractérisée en ce que ladite section transversale est asymétrique, un premier angle α entre le bord d'attaque (12) et la base (14) étant inférieur à un second angle β entre la base et le bord de fuite (13) ; et en ce que la superstructure comprend un moyeu (21 ) relié aux colonnes (10) par des bras (20) de manière à les renforcer, le moyeu et les bras ayant une hauteur comprise entre 10% et 50% de la hauteur des colonnes. a coaxial superstructure at the wheel and having a symmetry of rotation of order n> = 3, the peripheral part of the superstructure forming n columns (10) parallel to the axis of the wheel and arranged substantially along the periphery ratchet (2), each column having an outer portion whose cross section has substantially the shape of a truncated triangle with a base substantially parallel to the circumference of the wheel and a front side (12), said leading edge, and a trailing edge (13), said trailing edge, extending from the base towards the inside of the wheel; characterized in that said cross-section is asymmetrical, a first angle α between the leading edge (12) and the base (14) being less than a second angle β between the base and the trailing edge (13); and in that the superstructure comprises a hub (21) connected to the columns (10) by arms (20) so as to reinforce them, the hub and the arms having a height of between 10% and 50% of the height of the columns .
2. Roue à colonnes (1 ) pour chronographe selon la revendication2. Column wheel (1) for chronograph according to the claim
1 , dans laquelle la base (14) est sensiblement arrondie convexe.1, wherein the base (14) is substantially rounded convex.
3. Roue à colonnes (1 ) pour chronographe selon la revendication 1 ou 2, dans laquelle l'angle α est inférieur à l'angle β d'au moins 10% et de préférence d'au moins 20 %. 3. Chronograph column wheel (1) according to claim 1 or 2, wherein the angle α is less than the angle β of at least 10% and preferably at least 20%.
4. Roue à colonnes (1 ) pour chronographe selon la revendication4. Column wheel (1) for chronograph according to the claim
1 , 2 ou 3 dans laquelle l'angle α est compris entre 50 degrés et 53 degrés.1, 2 or 3 wherein the angle α is between 50 degrees and 53 degrees.
5. Mécanisme de commande pour chronographe comportant une roue à colonnes (1 ) selon l'une quelconque des revendications 1 à 4, et au moins un levier pivotant (30, 40 ,50) dont le bec est susceptible de coopérer avec les colonnes (10) de la roue à colonnes.5. Chronograph control mechanism comprising a column wheel (1) according to any one of claims 1 to 4, and less a pivoting lever (30, 40, 50) whose beak is likely to cooperate with the columns (10) of the column wheel.
6. Mécanisme de commande pour chronographe selon la revendication 5, dans lequel un levier est une bascule d'embrayage (50). The chronograph control mechanism according to claim 5, wherein a lever is a clutch rocker (50).
7. Mécanisme de commande pour chronographe selon la revendication 5 ou 6, dans lequel un levier est un marteau (40).7. chronograph control mechanism according to claim 5 or 6, wherein a lever is a hammer (40).
8. Mécansime de commande pour chronographe selon l'une des revendications 5, 6 Ou 7, dans lequel un levier est un bloqueur (30).8. Chronograph control mechanism according to one of claims 5, 6 or 7, wherein a lever is a blocker (30).
9. Montre-chronographe comportant un mécanisme de commande pour chronographe selon l'une des revendications 5 à 8. 9. Chronograph watch comprising a chronograph control mechanism according to one of claims 5 to 8.
EP10709199.3A 2009-03-12 2010-03-11 Column wheel for a chronograph, chronograph and chronograph timepiece comprising such a wheel Active EP2406690B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP10709199.3A EP2406690B1 (en) 2009-03-12 2010-03-11 Column wheel for a chronograph, chronograph and chronograph timepiece comprising such a wheel

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP09155010A EP2228692A1 (en) 2009-03-12 2009-03-12 Column wheel for a chronograph, chronograph and chronograph timepiece comprising such a wheel
EP10709199.3A EP2406690B1 (en) 2009-03-12 2010-03-11 Column wheel for a chronograph, chronograph and chronograph timepiece comprising such a wheel
PCT/EP2010/053073 WO2010103060A1 (en) 2009-03-12 2010-03-11 Column wheel for a chronograph, chronograph, and chronograph-watch including such a wheel

Publications (2)

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EP2406690A1 true EP2406690A1 (en) 2012-01-18
EP2406690B1 EP2406690B1 (en) 2014-05-07

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EP10709199.3A Active EP2406690B1 (en) 2009-03-12 2010-03-11 Column wheel for a chronograph, chronograph and chronograph timepiece comprising such a wheel

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EP (2) EP2228692A1 (en)
JP (1) JP5548708B2 (en)
CN (1) CN102405445B (en)
RU (1) RU2523750C2 (en)
WO (1) WO2010103060A1 (en)

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EP2228692A1 (en) 2010-09-15
US8529121B2 (en) 2013-09-10
JP2012520447A (en) 2012-09-06
WO2010103060A1 (en) 2010-09-16
JP5548708B2 (en) 2014-07-16
RU2523750C2 (en) 2014-07-20
EP2406690B1 (en) 2014-05-07
CN102405445A (en) 2012-04-04
RU2011141296A (en) 2013-04-20
US20120069717A1 (en) 2012-03-22
CN102405445B (en) 2014-07-02

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