EP1461667A2 - Mechanically driven timepiece component associated with a chronograph - Google Patents

Mechanically driven timepiece component associated with a chronograph

Info

Publication number
EP1461667A2
EP1461667A2 EP02769838A EP02769838A EP1461667A2 EP 1461667 A2 EP1461667 A2 EP 1461667A2 EP 02769838 A EP02769838 A EP 02769838A EP 02769838 A EP02769838 A EP 02769838A EP 1461667 A2 EP1461667 A2 EP 1461667A2
Authority
EP
European Patent Office
Prior art keywords
wheel
chronograph
clutch
timepiece
finishing
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
EP02769838A
Other languages
German (de)
French (fr)
Other versions
EP1461667B1 (en
Inventor
Carlos Dias
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.)
Manufacture Roger Dubuis SA
Original Assignee
Manufacture Roger Dubuis 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 Manufacture Roger Dubuis SA filed Critical Manufacture Roger Dubuis SA
Priority to EP02769838A priority Critical patent/EP1461667B1/en
Publication of EP1461667A2 publication Critical patent/EP1461667A2/en
Application granted granted Critical
Publication of EP1461667B1 publication Critical patent/EP1461667B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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
    • 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
    • G04F7/0804—Watches or clocks with stop devices, e.g. chronograph with reset mechanisms
    • G04F7/0814—Watches or clocks with stop devices, e.g. chronograph with reset mechanisms with double hammer, i.e. one hammer acts on two counters
    • 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
    • G04F7/0823—Watches or clocks with stop devices, e.g. chronograph with couplings between the chronograph mechanism and the base movement
    • G04F7/0828—Watches or clocks with stop devices, e.g. chronograph with couplings between the chronograph mechanism and the base movement acting in the plane of the movement
    • 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

Definitions

  • the present invention relates to a timepiece mechanically driven associated with a chronograph mechanism, comprising a column wheel for controlling the rockers, in particular a clutch rocker carrying a clutch mobile between the gear train of finishing the timepiece and the chronograph train, the pivot axis of this clutch lever being substantially coaxial with that of a drive wheel secured to the axis of a wheel of said finishing train.
  • the present invention relates to a timepiece mechanically driven associated with a chronograph mechanism, as defined by claim 1.
  • This solution has many advantages, in particular that of having two separate mechanisms, that of watchmaking and chronographs, while allowing integration of the latter mechanism into the clockwork mechanism, leading to a particularly judicious use of the space available both on the surface and at height.
  • FIG. 1 is a plan view on the bridge side of the movement of this timepiece;
  • Figure 2 is a view similar to Figure 1 partially broken away to show the train of the watch movement;
  • Figure 3 is a view of the only chronograph mechanism in the rest position;
  • Figure 4 is a view similar to Figure 3 showing the mechanism during start-up;
  • FIG. 5 is a view similar to FIG.
  • Figures 13 and 14 are diagrams of the gear train indicator power reserve during winding, respectively during the disarming of the mainspring.
  • FIG. 1 shows in particular a chronograph mechanism, a control lever 1 pivotally mounted around a screw carried by the screwed into the barrel bridge B and one end lb of which is intended to be connected to a single pusher (not shown) coaxial with the winding stem T.
  • the end lb of the lever 1 could also be located opposite “2 hours ".
  • the other end of this control lever 1 ends with a pawl 2 engaged with a ratchet toothing 4a (FIG. 3) of a column wheel 4.
  • a return spring ri tends to bring the control lever 1 back into a rest position illustrated in FIG. 1, against a stopper ld working with the edge of an oval opening le, thus delimiting two limit positions.
  • Another return spring r 2 tends to keep the pawl 2 constantly engaged with the ratchet teeth 4a.
  • This column wheel 4 is selectively in direct contact with all the rockers of the chronograph mechanism.
  • One of these rockers is the rocker 5 of the reset hammers carrying two hammers 5a, 5b and pivoted around an axis 5c secured to the barrel bridge B.
  • This rocker 5 is engaged with a return spring r 5 which presses it constantly towards the column wheel 4.
  • Another lever constitutes a brake 6 constantly pushed against the column wheel 4 by an elastic arm 6a stamped with the brake 6 and bearing against a stop 6c.
  • This brake 6 is pivotally mounted around a bearing screw 6b screwed into the barrel bridge B.
  • a third lever is the clutch lever 10 which has a semi-circular mobile pivoting opening 10a pivotally mounted around a circular surface 14a a pivoting plate 14, itself pivotally mounted around a screw 14b screwed into a bridge S of the seconds wheel 15a ( Figure 11).
  • the angular position of this pivoting plate 14 is adjustable around the axis of this screw 14b using an eccentric 13.
  • the semi-circular mobile pivoting opening 10a has a range which opens onto the upper face of the scale 10. This range serves to retain the scale 10 between the seconds bridge S and a bearing surface surrounding the circular surface 14b of the pivoting plate 14, opening onto the underside of this pivoting plate 14 and adjusting to the complementary surface of the semi-circular mobile pivoting opening 10a of the rocker 10 .
  • the clutch lever 10 has two upper parts 10s and lower lOi assembled by a screw lOv ( Figure 11) between which a clutch wheel 16 is pivotally mounted. This clutch wheel 16 is constantly engaged with a driving wheel 15 secured to the axis of the seconds wheel 15a.
  • the seconds bridge S is higher than the bridge of the gear train R.
  • the difference in height is chosen so as to allow the driving wheel 15 and the clutch lever 10 to pass over the bridge of the gear train R. Thanks to this arrangement and to the pivoting system of the clutch lever 10 along an axis coaxial with that of the seconds wheel 15a and the driving wheel 15, the extra thickness due the chronograph mechanism is reduced to a minimum. Only the axis of the seconds wheel 15a carrying the driving wheel requires a modification of the clockwork movement, all the rest of the chronograph mechanism being located outside the watch movement does not generate any modification of this movement.
  • a return spring rio pushes the clutch lever 10 clockwise around the circular pivoting surface 14, so that the end of this clutch lever 10 is constantly in contact with the column wheel 4.
  • a last lever, called inter-meter lever 21 is pivotally mounted around a bearing screw 21a.
  • a return spring r 2 ⁇ pushes this lever 21 clockwise and presses one of its ends against the column wheel 4 (FIG. 3).
  • the other end of this lever 21 carries an intermediate wheel 18 of the minute counter which is constantly engaged with a wheel 8 of the minute counter whose pivot axis 8a (FIG. 10) crosses the entire movement to exit from the dial side movement to carry a minute counter hand (not shown).
  • This wheel 8 of the minute counter still carries a heart-shaped cam 9 (FIG. 3) intended to cooperate with the arm 5a of the hammer 5 for resetting to zero during the resetting of the minute counter.
  • a chronograph wheel 19 is still pivoted in the center of the movement and its axis crosses the entire movement to exit the dial side of the movement to carry a hand (not shown) of the seconds counter.
  • This chronograph wheel 19 carries a drive finger 17 of the intermediate wheel 18 of the minute counter (FIGS. 5 and 9) driving the wheel 8 of this counter at each rotation, that is to say once per minute.
  • This chronograph wheel also carries a heart-shaped reset cam 20 (FIG. 3) intended to cooperate with the arm 5b of the reset hammer 5.
  • a jumper spring 3 is engaged with the ratchet teeth 4a of the column wheel and a jumper spring 7 is engaged with the wheel 8 of the minute counter.
  • the penetration of the clutch wheel 16 carried by the clutch lever 10 is adjustable by means of a stop 11 constituted by an eccentric, serving to limit the pivoting of the clutch lever 10 in the clockwise direction. a watch, thus making it possible to adjust the penetration of the teeth of the clutch wheel into that of the chronograph wheel 19.
  • Another eccentric stop 12 serves to limit the pivoting of the intermediate lever 21 in a clockwise direction and consequently the penetration of the drive finger 17 into the teeth of the intermediate wheel 18.
  • FIG. 2 shows the cog of the watch movement.
  • this movement includes an additional mobile 24 between the teeth of the barrel 22 enclosing the mainspring (not shown) and the pinion 23a of the center wheel 23.
  • This additional mobile 24 increases the reduction ratio between the barrel 22 and the center wheel 23, so that the barrel 22 rotates more slowly than in a classic movement, which makes it possible to increase the power reserve of the watch from around two days for a classic watch to around ten days in this case, ie 8 useful days.
  • the cog of the power reserve indicator is essentially on the dial side of the movement ( Figures 13 and 14).
  • this train comprises a gear 37 engaged on the one hand with the ratchet 36 of the barrel 22 and on the other hand with a differential wheel 38, the shaft 38a of which crosses the movement and includes a square 38b engaged with a reference 31 meshing with a satellite 32 pivotally mounted on a rod 30a of a crown 30 carrying the differential.
  • This crown 30 is engaged with a reference 29 which meshes with a pinion 28a of a wheel 28 coaxial with the barrel 22 and which is in kinematic connection with the barrel 22 by means of a double pinion 39 meshing simultaneously with the teeth of the barrel 22 and that of the wheel 28.
  • the pinion 32a of the satellite 32 meshes with an intermediate wheel 33 which meshes with a drive wheel 34 whose pinion 34a meshes with a toothed sector 35 carrying the power reserve indicator (not shown) which moves over an angle of 90 ° for example, between the winding and winding up of the mainspring contained in the barrel 22.
  • FIG. 13 indicates by arrows the respective directions of rotation of the various moving parts of the gear train indicating the power reserve during the winding phase of the barrel spring.
  • the mobiles without arrows correspond to those which are fixed, that is to say the barrel 22, the double pinion 39, the wheel 28 coaxial with the barrel 22, the reference 29 and the differential crown 30.
  • FIG. 14 indicates by of arrows the respective directions of rotation of the moving gears of the power reserve indicator during the disarming phase of the barrel spring.
  • the mobiles which remain stationary during this phase have no arrows, these are the ratchet 36, the reference 37, the differential wheel 38 and the satellite drive return 31 secured to the differential wheel 38.
  • Figures 3 to 8 show the only chronograph mechanism during the different phases of a complete cycle of operation.
  • Figure 3 shows this mechanism reset.
  • the arrows indicate which are the moving parts and the respective directions of movement. All the organs of the mechanism are at rest except for the drive wheel 15 and the clutch wheel 16 which are in kinematic connection with the gear train 22-27 of the watch movement.
  • FIG 4 illustrates the start-up phase of the chronograph mechanism.
  • the arrows show which are the moving parts and their respective directions of movement.
  • This start-up is controlled by the lever 1 following a pressure exerted on its end adjacent to the winding stem T ( Figure 1).
  • This pressure turns the column wheel 4 by 20 ° clockwise and this rotation causes the rocker 5 to move in the direction of the arrows and release the hammers 5a, 5b, as well as the movement of the clutch shoes 10 and inter counter 21 in the respective directions of the arrows.
  • Figure 5 shows the chronograph running.
  • the levers engaged with the columns of the column wheel 4 are in the same positions as above, and all the wheels of the chronograph mechanism are in movement in the respective directions indicated by the arrows.
  • the control lever 1 is returned to the rest position.
  • the intermediate wheel 18 and the minute counter wheel 8 are driven step by step by the finger 17 of the chronograph wheel 19, once per revolution of this wheel 19, that is to say a times per minute.
  • the transition from the phase of FIG. 5 to that of FIG. 6 corresponds to the passage of the stopping of the chronograph train following a new actuation of the control lever 1.
  • the brake 6 moves in the direction of the arrow and bears against the chronograph wheel 19 which it immobilizes.
  • the clutch lever 10 moves in the direction of the arrow separating the clutch wheel 16 from the counter wheel 19.
  • FIG. 7 shows the chronograph stopped, that is to say that with respect to FIG. 6, pressure on the control lever 1 has ceased to be applied, so that it has returned to the rest position under the pressure of the return spring laughed, thus putting the pawl 2 in the ready position for actuating the column wheel in a new step of 20 °.
  • the brake 6 retains the chronograph wheel 19 in the position in which the chronograph mechanism has been stopped, allowing the time measured by this mechanism to be read between its start and stop.
  • the last function is to reset the hands of the second and minute counter. It is illustrated by FIG. 8 in which it can be seen that the hammer 5 is pushed against the cams with cores 9 and 20. Simultaneously, the brake 6 releases the chronograph wheel 19, the rocker 21 releases the finger 17, thus allowing delivery at zero of the minutes and seconds counters.
  • FIG. 3 shows the respective positions of the components of the chronograph mechanism after resetting to zero, once the control lever 1 has been returned to the rest position by the return spring ri.

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

Abstract

Timepiece has a mechanical mechanism with two distinct mechanisms: a timekeeping mechanism and a chronograph mechanism together with an indicator mechanism showing the remaining reserve. <??>Mechanically driven timepiece component associated with a chronograph comprises a column wheel (4) for controlling levers, in particular a clutch lever (10) bearing a clutch mobile (16) between the finishing wheel of the timepiece component and the chronograph gear train. The bridges of the gear train are used for mounting members of the chronograph mechanism and the clutch lever has a pivoting surface (10a) enclosed by concentric seat on the upper side and associated with complementary pivot surface integral with the bridge of the finish gear train, which is surrounded by a concentric seat on its lower side, complementary to the seat of the pivoting surface and retaining the clutch lever of the finishing bridge.

Description

PIECE D'HORLOGERIE ENTRAINEE MECANIQUEMENT ASSOCIEE A UN MECHANICALLY DRIVEN WATCHMAKING PIECE ASSOCIATED WITH A
CHRONOGRAPHECHRONOGRAPH
La présente invention se rapporte à une pièce d'horlo- gerie entraînée mécaniquement associée à un mécanisme de chronographe, comprenant une roue à colonnes pour commander des bascules, notamment une bascule d'embrayage portant un mobile d'embrayage entre le rouage de finissage de la pièce d'horlogerie et le rouage de chronographe, l'axe de pivote- ment de cette bascule d'embrayage étant sensiblement coaxial à celui d'une roue d'entraînement solidaire de l'axe d'une roue dudit rouage de finissage.The present invention relates to a timepiece mechanically driven associated with a chronograph mechanism, comprising a column wheel for controlling the rockers, in particular a clutch rocker carrying a clutch mobile between the gear train of finishing the timepiece and the chronograph train, the pivot axis of this clutch lever being substantially coaxial with that of a drive wheel secured to the axis of a wheel of said finishing train.
Les mécanismes de chronographes dans lesquels la liaison entre le rouage de finissage du mouvement d'horlogerie et celui du mécanisme de chronographe est obtenue par le déplacement d'une roue d'embrayage portée par une bascule dans son plan est connu. Ce type de solution est généralement utilisé dans le cas où le mécanisme de chronographe forme un module distinct porté par une platine rapportée sur le mouvement d'horlogerie. Ce type de liaison présente l'avantage que le mécanisme de chronographe n'interfère pas avec le mouvement d'horlogerie. C'est la raison pour laquelle il peut exister d'autres applications dans lesquelles cette conception est avantageuse. C'est le cas en particulier lorsque la place disponible est particulièrement réduite .The mechanisms of chronographs in which the connection between the gear train of the clockwork movement and that of the chronograph mechanism is obtained by the displacement of a clutch wheel carried by a rocker in its plane is known. This type of solution is generally used in the case where the chronograph mechanism forms a separate module carried by a plate attached to the watch movement. This type of link has the advantage that the chronograph mechanism does not interfere with the watch movement. This is the reason why there may be other applications in which this design is advantageous. This is particularly the case when the space available is particularly reduced.
Par contre, la présence d'un module distinct pour le mécanisme de chronographe est toujours un facteur augmentant la hauteur du mouvement étant donné que l'épaisseur de la platine qui le porte s'ajoute à celle des ponts.On the other hand, the presence of a separate module for the chronograph mechanism is always a factor increasing the height of the movement since the thickness of the plate carrying it adds to that of the bridges.
Un autre problème posé par ce type de liaison vient du fait que la bascule qui porte la roue d'embrayage du chronographe doit tourner autour d'un axe concentrique à l'axe de la roue d'entraînement normalement solidaire de l'axe de la roue de secondes du rouage de finissage. Si ce problème peut être résolu de manière assez évidente dans le cas où le mécanisme de chronographe est porté par un module indépendant, le problème devient relativement complexe avec un mécanisme de chronographe intégré au mouvement d'horlogerie.Another problem posed by this type of link comes from the fact that the lever which carries the clutch wheel of the chronograph must rotate around an axis concentric with the axis of the drive wheel normally integral with the axis of the seconds wheel of the gear train. If this problem can be resolved quite clearly in the case where the chronograph mechanism is carried by an independent module, the problem becomes relatively complex with a chronograph mechanism integrated into the watch movement.
Ce problème est encore accru dans le cas où le mouvement de la montre est un mouvement à huit jours de réserve de marche, ce qui nécessite un mobile supplémentaire entre le barillet et la roue de centre. Or un tel mouvement rend un indicateur de réserve de marche pratiquement indispensable, l'utilisateur, avec une réserve de marche aussi longue, pouvant difficilement se souvenir quand il a remonté sa montre pour la dernière fois. Si, en plus de ces difficultés, on se propose d'associer ces mécanismes à un mouvement de forme non circulaire, réduisant ainsi- la place disponible d'environ 10% à 15%, la complexité du problème posé est évidente.This problem is further increased in the case where the watch movement is an eight-day power reserve movement, which requires an additional mobile between the barrel and the center wheel. However, such a movement makes a power reserve indicator practically essential, the user, with such a long power reserve, having difficulty remembering when he wound his watch for the last time. If, in addition to these difficulties, it is proposed to associate these mechanisms with a movement of non-circular shape, thereby reducing the available space by approximately 10% to 15%, the complexity of the problem posed is obvious.
Le but de la présente est précisément d' apporter une solution aux problèmes susmentionnés.The purpose of this is precisely to provide a solution to the above problems.
A cet effet, la présente invention a pour objet une pièce d'horlogerie entraînée mécaniquement associée à un mécanisme de chronographe, tel que définie par la revendication 1. Cette solution présente de nombreux avantages, notamment celui d'avoir deux mécanismes distincts, celui d'horlogerie et celui de chronographe, tout en permettant une intégration de ce dernier mécanisme au mécanisme d'horlogerie, conduisant à une utilisation particulièrement judicieuse de l'espace disponible aussi bien en surface qu'en hauteur.To this end, the present invention relates to a timepiece mechanically driven associated with a chronograph mechanism, as defined by claim 1. This solution has many advantages, in particular that of having two separate mechanisms, that of watchmaking and chronographs, while allowing integration of the latter mechanism into the clockwork mechanism, leading to a particularly judicious use of the space available both on the surface and at height.
Différents perfectionnement de l'objet de l'invention ainsi que les avantages qui en découlent apparaîtront au fur et à mesure de la description qui va suivre. Le dessin annexé illustre, schématiquement et à titre d'exemple, une forme d'exécution ainsi que différents perfectionnement de la pièce d'horlogerie objet de la présente invention. La figure 1 est une vue en plan côté ponts du mouvement de cette pièce d'horlogerie; la figure 2 est une vue semblable à la figure 1 avec arrachement partiel pour montrer le rouage du mouvement de montre; la figure 3 est une vue du seul mécanisme de chronographe en position de repos; la figure 4 est une vue semblable à la figure 3 montrant le mécanisme lors de la mise en marche; la figure 5 est une vue semblable à la figure 3 du mé- canisme en marche; la figure 6 est une vue semblable à la figure 3 du mécanisme lors de la mise en arrêt ; la figure 7 est une vue semblable à la figure 3 du mécanisme arrêté; la figure 8 est une vue semblable à la figure 3 du mécanisme lors de la remise à zéro; la figure 9 est une vue en coupe partielle selon la ligne IX-IX de la figure 1; la figure 10 est une vue en coupe partielle selon la ligne X-X de la figure 1; la figure 11 est une vue en coupe partielle selon la ligne XI-XI de la figure 1; la figure 12 est une vue en coupe partielle selon la ligne XII-XII de la figure 1; les figures 13 et 14 sont des schémas du rouage indicateur de réserve de marche pendant l'armage, respectivement pendant le désarmage du ressort moteur. Le mouvement de montre de forme non circulaire illustré par la figure 1 montre en particulier un mécanisme de chronographe, une bascule de commande 1 montée pivotante autour d'une vis à portée la vissée dans le pont de barillet B et dont une extrémité lb est destinée à être reliée à un poussoir unique (non représenté) coaxial à la tige de remontoir T. En variante, comme illustré en traits pointillés sur la figure 3, l'extrémité lb de la bascule 1 pourrait aussi se situer en face de « 2 heures ». L'autre extrémité de cette bascule de commande 1 se termine par un cliquet 2 en prise avec une denture à rochet 4a (figure 3) d'une roue à colonnes 4.Different refinements of the subject of the invention as well as the advantages which result therefrom will become apparent as the description follows. The attached drawing illustrates, schematically and by way of example, an embodiment as well as various improvements to the timepiece subject of the present invention. FIG. 1 is a plan view on the bridge side of the movement of this timepiece; Figure 2 is a view similar to Figure 1 partially broken away to show the train of the watch movement; Figure 3 is a view of the only chronograph mechanism in the rest position; Figure 4 is a view similar to Figure 3 showing the mechanism during start-up; FIG. 5 is a view similar to FIG. 3 of the mechanism in operation; Figure 6 is a view similar to Figure 3 of the mechanism during shutdown; Figure 7 is a view similar to Figure 3 of the stopped mechanism; Figure 8 is a view similar to Figure 3 of the mechanism upon reset; Figure 9 is a partial sectional view along the line IX-IX of Figure 1; Figure 10 is a partial sectional view along line XX of Figure 1; Figure 11 is a partial sectional view along the line XI-XI of Figure 1; Figure 12 is a partial sectional view along line XII-XII of Figure 1; Figures 13 and 14 are diagrams of the gear train indicator power reserve during winding, respectively during the disarming of the mainspring. The non-circular watch movement illustrated by FIG. 1 shows in particular a chronograph mechanism, a control lever 1 pivotally mounted around a screw carried by the screwed into the barrel bridge B and one end lb of which is intended to be connected to a single pusher (not shown) coaxial with the winding stem T. As a variant, as illustrated in dotted lines in FIG. 3, the end lb of the lever 1 could also be located opposite “2 hours ". The other end of this control lever 1 ends with a pawl 2 engaged with a ratchet toothing 4a (FIG. 3) of a column wheel 4.
Un ressort de rappel ri tend à ramener la bascule de commande 1 dans une position de repos illustrée par la figure 1, contre une butée ld travaillant avec le bord d'une ouverture ovale le, délimitant ainsi deux positions limites. Un autre ressort de rappel r2 tend à maintenir le cliquet 2 constamment en prise avec la denture à rochet 4a.A return spring ri tends to bring the control lever 1 back into a rest position illustrated in FIG. 1, against a stopper ld working with the edge of an oval opening le, thus delimiting two limit positions. Another return spring r 2 tends to keep the pawl 2 constantly engaged with the ratchet teeth 4a.
Cette roue à colonnes 4 est sélectivement en prise directe avec l'ensemble des bascules du mécanisme de chronographe. L'une de ces bascules est la bascule 5 des marteaux de remise à zéro portant deux marteaux 5a, 5b et pivotée autour d'un axe 5c solidaire du pont de barillet B. Cette bascule 5 est en prise avec un ressort de rappel r5 qui la presse constamment en direction de la roue à colonnes 4.This column wheel 4 is selectively in direct contact with all the rockers of the chronograph mechanism. One of these rockers is the rocker 5 of the reset hammers carrying two hammers 5a, 5b and pivoted around an axis 5c secured to the barrel bridge B. This rocker 5 is engaged with a return spring r 5 which presses it constantly towards the column wheel 4.
Une autre bascule constitue un frein 6 poussé constamment contre la roue à colonnes 4 par un bras élastique 6a venu d' étampage avec le frein 6 et prenant appui contre une butée 6c. Ce frein 6 est monté pivotant autour d'une vis à portée 6b vissée dans le pont de barillet B.Another lever constitutes a brake 6 constantly pushed against the column wheel 4 by an elastic arm 6a stamped with the brake 6 and bearing against a stop 6c. This brake 6 is pivotally mounted around a bearing screw 6b screwed into the barrel bridge B.
Une troisième bascule est la bascule d'embrayage 10 qui présente une ouverture de pivotement mobile semi-circulaire 10a montée pivotante autour d'une surface circulaire 14a d'une plaquette de pivotement 14, elle-même montée pivotante autour d'une vis 14b vissée dans un pont S de la roue de secondes 15a (figure 11) . La position angulaire de cette plaquette de pivotement 14 est réglable autour de l'axe de cette vis 14b à l'aide d'un excentrique 13.A third lever is the clutch lever 10 which has a semi-circular mobile pivoting opening 10a pivotally mounted around a circular surface 14a a pivoting plate 14, itself pivotally mounted around a screw 14b screwed into a bridge S of the seconds wheel 15a (Figure 11). The angular position of this pivoting plate 14 is adjustable around the axis of this screw 14b using an eccentric 13.
Comme on peut le constater sur la coupe de la figure 11, l'ouverture de pivotement mobile semi-circulaire 10a présente une portée qui débouche sur la face supérieure de la bascule 10. Cette portée sert à retenir la bascule 10 entre le pont de secondes S et une portée entourant la surface circulaire 14b de la plaquette de pivotement 14, débouchant sur la face inférieure de cette plaquette de pivotement 14 et s' ajustant sur la portée complémentaire de l'ouverture de pivotement mobile semi-circulaire 10a de la bascule 10.As can be seen in the section of FIG. 11, the semi-circular mobile pivoting opening 10a has a range which opens onto the upper face of the scale 10. This range serves to retain the scale 10 between the seconds bridge S and a bearing surface surrounding the circular surface 14b of the pivoting plate 14, opening onto the underside of this pivoting plate 14 and adjusting to the complementary surface of the semi-circular mobile pivoting opening 10a of the rocker 10 .
La bascule d'embrayage 10 comporte deux parties supérieure 10s et inférieure lOi assemblées par une vis lOv (figure 11) entre lesquelles une roue d'embrayage 16 est montée pivotante. Cette roue d'embrayage 16 est constamment en prise avec une roue entraîneuse 15 solidaire de l'axe de la roue de secondes 15a.The clutch lever 10 has two upper parts 10s and lower lOi assembled by a screw lOv (Figure 11) between which a clutch wheel 16 is pivotally mounted. This clutch wheel 16 is constantly engaged with a driving wheel 15 secured to the axis of the seconds wheel 15a.
Comme on le voit sur la figure 11, le pont de secondes S est plus haut que le pont du rouage de finissage R. La différence de hauteur est choisie de manière à permettre à la roue entraîneuse 15 et à la bascule d'embrayage 10 de passer au-dessus du pont du rouage de finissage R. Grâce à cette disposition et au système de pivotement de la bascule d'embrayage 10 selon un axe coaxial à celui de la roue de secondes 15a et de la roue entraîneuse 15, la surépaisseur due au mécanisme de chronographe est ramenée à un minimum. Seul l'axe de la roue de secondes 15a portant la roue entraîneuse nécessite une modification du mouvement d'horlogerie, tout le reste du mécanisme de chronographe se situant hors du mouvement d'horlogerie ne génère aucune modification de ce mouvement .As seen in FIG. 11, the seconds bridge S is higher than the bridge of the gear train R. The difference in height is chosen so as to allow the driving wheel 15 and the clutch lever 10 to pass over the bridge of the gear train R. Thanks to this arrangement and to the pivoting system of the clutch lever 10 along an axis coaxial with that of the seconds wheel 15a and the driving wheel 15, the extra thickness due the chronograph mechanism is reduced to a minimum. Only the axis of the seconds wheel 15a carrying the driving wheel requires a modification of the clockwork movement, all the rest of the chronograph mechanism being located outside the watch movement does not generate any modification of this movement.
Un ressort de rappel rio (figure 1) pousse la bascule d'embrayage 10 dans le sens des aiguilles d'une montre au- tour de la surface circulaire de pivotement 14, de sorte que l'extrémité de cette bascule d'embrayage 10 est constamment en contact avec la roue à colonnes 4.A return spring rio (FIG. 1) pushes the clutch lever 10 clockwise around the circular pivoting surface 14, so that the end of this clutch lever 10 is constantly in contact with the column wheel 4.
Une dernière bascule, dite bascule inter compteurs 21 est montée pivotante autour d'une vis à portée 21a. Un res- sort de rappel r2ι pousse cette bascule 21 dans le sens des aiguilles de la montre et presse une de ses extrémités contre la roue à colonnes 4 (figure 3) . L'autre extrémité de cette bascule 21 porte une roue intermédiaire 18 du compteur des minutes qui est constamment en prise avec une roue 8 du compteur des minutes dont l'axe de pivotement 8a (figure 10) traverse tout le mouvement pour sortir du côté cadran du mouvement pour porter une aiguille (non représentée) du compteur des minutes. Cette roue 8 du compteur des minutes porte encore une came en forme de cœur 9 (figure 3) destinée à coopérer avec le bras 5a du marteau 5 de remise à zéro lors de la remise à zéro du compteur des minutes.A last lever, called inter-meter lever 21 is pivotally mounted around a bearing screw 21a. A return spring r 2 ι pushes this lever 21 clockwise and presses one of its ends against the column wheel 4 (FIG. 3). The other end of this lever 21 carries an intermediate wheel 18 of the minute counter which is constantly engaged with a wheel 8 of the minute counter whose pivot axis 8a (FIG. 10) crosses the entire movement to exit from the dial side movement to carry a minute counter hand (not shown). This wheel 8 of the minute counter still carries a heart-shaped cam 9 (FIG. 3) intended to cooperate with the arm 5a of the hammer 5 for resetting to zero during the resetting of the minute counter.
Une roue de chronographe 19 est encore pivotée au centre du mouvement et son axe traverse tout le mouvement pour sortir du côté cadran du mouvement pour porter une aiguille (non représentée) du compteur des secondes. Cette roue de chronographe 19 porte un doigt d'entraînement 17 de la roue intermédiaire 18 du compteur des minutes (figures 5 et 9) entraînant la roue 8 de ce compteur à chaque rotation, c'est-à-dire une fois par minute. Cette roue de chronographe porte aussi une came de remise à zéro en forme de cœur 20 (figure 3) destinée à coopérer avec le bras 5b du marteau de remise à zéro 5. Un ressort sautoir 3 est en prise avec la denture à rochet 4a de la roue à colonnes et un ressort sautoir 7 est en prise avec la roue 8 du compteur des minutes.A chronograph wheel 19 is still pivoted in the center of the movement and its axis crosses the entire movement to exit the dial side of the movement to carry a hand (not shown) of the seconds counter. This chronograph wheel 19 carries a drive finger 17 of the intermediate wheel 18 of the minute counter (FIGS. 5 and 9) driving the wheel 8 of this counter at each rotation, that is to say once per minute. This chronograph wheel also carries a heart-shaped reset cam 20 (FIG. 3) intended to cooperate with the arm 5b of the reset hammer 5. A jumper spring 3 is engaged with the ratchet teeth 4a of the column wheel and a jumper spring 7 is engaged with the wheel 8 of the minute counter.
La pénétration de la roue d'embrayage 16 portée par la bascule d'embrayage 10 est réglable au moyen d'une butée 11 constituée par un excentrique, servant à limiter le pivotement de la bascule d'embrayage 10 dans le sens des aiguilles d'une montre, permettant ainsi de régler la pénétration de la denture de la roue d' embrayage dans celle de la roue de chronographe 19.The penetration of the clutch wheel 16 carried by the clutch lever 10 is adjustable by means of a stop 11 constituted by an eccentric, serving to limit the pivoting of the clutch lever 10 in the clockwise direction. a watch, thus making it possible to adjust the penetration of the teeth of the clutch wheel into that of the chronograph wheel 19.
Une autre butée excentrique 12 sert à limiter le pivotement de la bascule intermédiaire 21 dans le sens des aiguilles d'une montre et par conséquent la pénétration du doigt d' entraînement 17 dans la denture de la roue intermé- diaire 18.Another eccentric stop 12 serves to limit the pivoting of the intermediate lever 21 in a clockwise direction and consequently the penetration of the drive finger 17 into the teeth of the intermediate wheel 18.
La figure 2 montre le rouage du mouvement de la montre. Outre les roues habituelles que l'on retrouve dans tous les mouvements d'horlogerie mécaniques, à savoir, les roues de centre 23 de moyenne 25 de seconde 26 et d'échappement 27, ce mouvement comporte un mobile supplémentaire 24 entre la denture du barillet 22 renfermant le ressort moteur (non représenté) et le pignon 23a de la roue de centre 23. Ce mobile supplémentaire 24 augmente la démultiplication entre le barillet 22 et la roue de centre 23, de sorte que le baril- let 22 tourne plus lentement que dans un mouvement classique, ce qui permet d'augmenter la réserve de marche de la montre d'environ deux jours pour une montre classique à environ dix jours dans ce cas, soit 8 jours utiles.Figure 2 shows the cog of the watch movement. In addition to the usual wheels that are found in all mechanical watch movements, namely, the center wheels 23 with an average 25 of a second 26 and an escapement 27, this movement includes an additional mobile 24 between the teeth of the barrel 22 enclosing the mainspring (not shown) and the pinion 23a of the center wheel 23. This additional mobile 24 increases the reduction ratio between the barrel 22 and the center wheel 23, so that the barrel 22 rotates more slowly than in a classic movement, which makes it possible to increase the power reserve of the watch from around two days for a classic watch to around ten days in this case, ie 8 useful days.
Etant donné l'importance de la réserve de marche, il est utile d'avoir un indicateur de réserve de marche pour que l'utilisateur sache quand il doit remonter sa montre. Le rouage de l'indicateur de réserve de marche se trouve essentiellement du côté cadran du mouvement (figures 13 et 14). De l'autre côté, ce rouage comporte un renvoi 37 en prise d'une part avec le rochet 36 du barillet 22 et d'autre part avec une roue de différentiel 38, dont l'arbre 38a traverse le mouvement et comporte un carré 38b en prise avec un renvoi 31 engrenant avec un satellite 32 monté pivotant sur une tige 30a d'une couronne 30 portant le différentiel. Cette couronne 30 est en prise avec un renvoi 29 qui engrène avec un pignon 28a d'une roue 28 coaxiale au barillet 22 et qui est en liaison cinématique avec le barillet 22 grâce à un double pignon 39 engrenant simultanément avec la denture du barillet 22 et celle de la roue 28.Given the importance of the power reserve, it is useful to have a power reserve indicator so that the user knows when he has to wind his watch. The cog of the power reserve indicator is essentially on the dial side of the movement (Figures 13 and 14). On the other side, this train comprises a gear 37 engaged on the one hand with the ratchet 36 of the barrel 22 and on the other hand with a differential wheel 38, the shaft 38a of which crosses the movement and includes a square 38b engaged with a reference 31 meshing with a satellite 32 pivotally mounted on a rod 30a of a crown 30 carrying the differential. This crown 30 is engaged with a reference 29 which meshes with a pinion 28a of a wheel 28 coaxial with the barrel 22 and which is in kinematic connection with the barrel 22 by means of a double pinion 39 meshing simultaneously with the teeth of the barrel 22 and that of the wheel 28.
Le pignon 32a du satellite 32 engrène avec une roue intermédiaire 33 qui engrène avec une roue d'entraînement 34 dont le pignon 34a engrène avec un secteur denté 35 portant l'indicateur de réserve de marche (non représenté) qui se déplace sur un angle de 90° par exemple, entre l'armage et le désarmage du ressort moteur contenu dans le barillet 22.The pinion 32a of the satellite 32 meshes with an intermediate wheel 33 which meshes with a drive wheel 34 whose pinion 34a meshes with a toothed sector 35 carrying the power reserve indicator (not shown) which moves over an angle of 90 ° for example, between the winding and winding up of the mainspring contained in the barrel 22.
La figure 13 indique par des flèches les sens de rotations respectifs des différents mobiles du rouage indicateur de réserve de marche durant la phase d' armage du ressort de barillet. Les mobiles sans flèches correspondent à ceux qui sont fixes, c'est-à-dire le barillet 22, le double pignon 39, la roue 28 coaxiale au barillet 22, le renvoi 29 et la couronne de différentiel 30. La figure 14 indique par des flèches les sens de rotations respectifs des mobiles du rouage indicateur de réserve de marche durant la phase de désarmage du ressort de barillet. Les mobiles qui restent immobiles durant cette phase n'ont pas de flèches, il s'agit du rochet 36, du renvoi 37, de la roue de différentiel 38 et du renvoi entraîneur de satellite 31 solidaire de la roue de différentiel 38.FIG. 13 indicates by arrows the respective directions of rotation of the various moving parts of the gear train indicating the power reserve during the winding phase of the barrel spring. The mobiles without arrows correspond to those which are fixed, that is to say the barrel 22, the double pinion 39, the wheel 28 coaxial with the barrel 22, the reference 29 and the differential crown 30. FIG. 14 indicates by of arrows the respective directions of rotation of the moving gears of the power reserve indicator during the disarming phase of the barrel spring. The mobiles which remain stationary during this phase have no arrows, these are the ratchet 36, the reference 37, the differential wheel 38 and the satellite drive return 31 secured to the differential wheel 38.
Les figures 3 à 8 montrent le seul mécanisme de chronographe au cours des différentes phases d'un cycle complet de fonctionnement. La figure 3 montre ce mécanisme remis à zéro. Les flèches indiquent quels sont les organes en mouvement et les sens respectifs des déplacements. Tous les organes du mécanisme sont au repos à l'exception de la roue d'entraînement 15 et de la roue d'embrayage 16 qui sont en liaison cinématique avec le rouage 22-27 du mouvement de la montre .Figures 3 to 8 show the only chronograph mechanism during the different phases of a complete cycle of operation. Figure 3 shows this mechanism reset. The arrows indicate which are the moving parts and the respective directions of movement. All the organs of the mechanism are at rest except for the drive wheel 15 and the clutch wheel 16 which are in kinematic connection with the gear train 22-27 of the watch movement.
La figure 4 illustre la phase de mise en marche du mécanisme de chronographe. Les flèches montrent quels sont les organes en mouvement et leurs sens de déplacements respectifs. Cette mise en marche est commandée par la bascule 1 consécutivement à une pression exercée sur son extrémité adjacente à la tige de remontoir T (figure 1) . Cette pression fait tourner de 20° la roue à colonnes 4 dans le sens des aiguilles d'une montre et cette rotation provoque le déplacement de la bascule 5 dans le sens des flèches et la libération des marteaux 5a, 5b, ainsi que le déplacement des bascules d'embrayage 10 et inter compteur 21 dans les sens respectifs des flèches. La figure 5 montre le chronographe en marche. Les leviers en prise avec les colonnes de la roue à colonnes 4 sont dans les mêmes positions que précédemment, et toutes les roues du mécanisme chronographe sont en mouvement dans les sens respectifs indiqués par les flèches. La bascule de commande 1 est ramenée dans la position de repos. En ce qui concerne la roue intermédiaire 18 et la roue du compteur de minutes 8 elles sont entraînées pas à pas par le doigt 17 de la roue de chronographe 19, une fois par révolution de cette roue 19, c'est-à-dire une fois par minute. Le passage de la phase de la figure 5 à celle de la figure 6 correspond au passage de la mise en arrêt du rouage de chronographe consécutivement à un nouvel actionnement de la bascule de commande 1. Au cours de cette phase, le frein 6 se déplace dans le sens de la flèche et vient en appui contre la roue de chronographe 19 qu'il immobilise. Simultanément, la bascule d'embrayage 10 se déplace dans le sens de la flèche séparant la roue d'embrayage 16 de la roue de compteur 19.Figure 4 illustrates the start-up phase of the chronograph mechanism. The arrows show which are the moving parts and their respective directions of movement. This start-up is controlled by the lever 1 following a pressure exerted on its end adjacent to the winding stem T (Figure 1). This pressure turns the column wheel 4 by 20 ° clockwise and this rotation causes the rocker 5 to move in the direction of the arrows and release the hammers 5a, 5b, as well as the movement of the clutch shoes 10 and inter counter 21 in the respective directions of the arrows. Figure 5 shows the chronograph running. The levers engaged with the columns of the column wheel 4 are in the same positions as above, and all the wheels of the chronograph mechanism are in movement in the respective directions indicated by the arrows. The control lever 1 is returned to the rest position. As regards the intermediate wheel 18 and the minute counter wheel 8, they are driven step by step by the finger 17 of the chronograph wheel 19, once per revolution of this wheel 19, that is to say a times per minute. The transition from the phase of FIG. 5 to that of FIG. 6 corresponds to the passage of the stopping of the chronograph train following a new actuation of the control lever 1. During this phase, the brake 6 moves in the direction of the arrow and bears against the chronograph wheel 19 which it immobilizes. Simultaneously, the clutch lever 10 moves in the direction of the arrow separating the clutch wheel 16 from the counter wheel 19.
La figure 7 montre le chronographe arrêté, c'est-à-dire que par rapport à la figure 6, on a cessé d'exercer une pression sur la bascule de commande 1 , de sorte qu'elle est revenue en position de repos sous la pression du ressort de rappel ri, mettant ainsi le cliquet 2 en position prête pour actionner la roue à colonnes d'un nouveau pas de 20°. Dans cette position, le frein 6 retient la roue de chronographe 19 dans la position dans laquelle le mécanisme de chronographe a été arrêté, permettant la lecture du temps mesuré par ce mécanisme entre sa mise en marche et son arrêt.FIG. 7 shows the chronograph stopped, that is to say that with respect to FIG. 6, pressure on the control lever 1 has ceased to be applied, so that it has returned to the rest position under the pressure of the return spring laughed, thus putting the pawl 2 in the ready position for actuating the column wheel in a new step of 20 °. In this position, the brake 6 retains the chronograph wheel 19 in the position in which the chronograph mechanism has been stopped, allowing the time measured by this mechanism to be read between its start and stop.
La dernière fonction consiste à remettre à zéro les aiguilles du compteur de secondes et de celui des minutes. Elle est illustrée par la figure 8 dans laquelle on voit que le marteau 5 est poussé contre les cames en cœurs 9 et 20. Simultanément, le frein 6 libère la roue de chronographe 19, la bascule 21 libère le doigt 17, permettant ainsi la remise à zéro des aiguilles des compteurs de minutes et de secondes .The last function is to reset the hands of the second and minute counter. It is illustrated by FIG. 8 in which it can be seen that the hammer 5 is pushed against the cams with cores 9 and 20. Simultaneously, the brake 6 releases the chronograph wheel 19, the rocker 21 releases the finger 17, thus allowing delivery at zero of the minutes and seconds counters.
La figure 3 montre les positions respectives des orga- nés du mécanisme de chronographe après la remise à zéro, une fois que la bascule de commande 1 a été ramenée en position de repos par le ressort de rappel ri. FIG. 3 shows the respective positions of the components of the chronograph mechanism after resetting to zero, once the control lever 1 has been returned to the rest position by the return spring ri.

Claims

REVENDICATIONS
1. Pièce d'horlogerie entraînée mécaniquement associée à un mécanisme de chronographe comprenant une roue à colon- nés (4) pour commander des bascules, notamment une bascule d'embrayage (10) portant un mobile d'embrayage (16) entre le rouage de finissage de la pièce d'horlogerie et le rouage de chronographe, l'axe de pivotement de cette bascule d'embrayage (10) étant sensiblement coaxial à celui d'une roue d' en- traînement (15) solidaire de l'axe d'une roue dudit rouage de finissage, caractérisée en ce que les ponts dudit rouage de finissage servent au montage des organes dudit mécanisme de chronographe et que ladite bascule d'embrayage (10) comporte une surface de pivotement mobile (10a) entourée d'une portée concentrique débouchant sur sa face supérieure et associée à une surface de pivotement complémentaire (14a), solidaire d'un pont (S) du rouage de finissage et sensiblement coaxiale à l'axe de la roue de secondes, cette surface de pivotement complémentaire (14a) étant entourée d'une portée concentrique débouchant sur sa face inférieure, complémentaire de la portée de ladite surface de pivotement mobile (10a) et servant à retenir ladite bascule d'embrayage (10) sur ledit pont de finissage (S) .1. Mechanically driven timepiece associated with a chronograph mechanism comprising a column wheel (4) for controlling the rockers, in particular a clutch rocker (10) carrying a clutch mobile (16) between the gear train for finishing the timepiece and the chronograph train, the pivot axis of this clutch lever (10) being substantially coaxial with that of a drive wheel (15) integral with the axis of a wheel of said finishing train, characterized in that the bridges of said finishing train are used for mounting the members of said chronograph mechanism and that said clutch lever (10) comprises a movable pivoting surface (10a) surrounded by a concentric bearing opening on its upper face and associated with a complementary pivoting surface (14a), integral with a bridge (S) of the gear train and substantially coaxial with the axis of the seconds wheel, this complementary pivoting surface e (14a) being surrounded by a concentric bearing opening on its underside, complementary to the bearing of said movable pivoting surface (10a) and serving to retain said clutch lever (10) on said finishing bridge (S) .
2. Pièce d'horlogerie selon la revendication 1, dans laquelle ledit pont de finissage (S) solidaire de ladite surface de pivotement complémentaire (14a) est plus haut que le pont de finissage adjacent (R) , la différence de hauteur étant choisie pour permettre à ladite roue d' entraînement (15) et à ladite roue d'embrayage (16) portée par ladite bascule d'embrayage (10) de s'étendre au-dessus du niveau dudit pont de finissage adjacent (R) .2. Timepiece according to claim 1, wherein said finishing bridge (S) integral with said complementary pivoting surface (14a) is higher than the adjacent finishing bridge (R), the difference in height being chosen for allowing said drive wheel (15) and said clutch wheel (16) carried by said clutch lever (10) to extend above the level of said adjacent finishing bridge (R).
3. Pièce d'horlogerie selon l'une des revendications précédentes, dans laquelle ladite surface de pivotement mo- bile (10a) de ladite bascule d'embrayage (10) est solidaire d'un organe réglable angulairement autour d'un axe situé sur une droite le reliant à l'axe de ladite roue d'entraînement3. Timepiece according to one of the preceding claims, wherein said pivoting surface mo- bile (10a) of said clutch lever (10) is integral with an angularly adjustable member about an axis located on a straight line connecting it to the axis of said drive wheel
(15) et formant un angle < 180° par rapport à la droite joi- gnant les axes de ladite roue d'entraînement (15) et dudit mobile d'embrayage (16), de manière à permettre de régler la pénétration entre les dentures de ladite roue d'entraînement(15) and forming an angle <180 ° with respect to the straight line joining the axes of said drive wheel (15) and said clutch mobile (16), so as to allow the penetration between the teeth to be adjusted of said drive wheel
(15) et dudit mobile d'embrayage (16) .(15) and said clutch mobile (16).
4. Pièce d'horlogerie selon l'une des revendications précédentes, dans laquelle toutes les bascules (5, 6, 10,4. Timepiece according to one of the preceding claims, in which all the latches (5, 6, 10,
21) dudit mécanisme de chronographe sont en prise directe avec ladite roue à colonnes (4) sous la pression d'éléments élastiques de rappel, de sorte que tous les déplacements desdites bascules (5, 6, 10, 21) résultent du mouvement pas à pas de ladite roue à colonnes (4) actionnée par un poussoir de commande unique (1) .21) of said chronograph mechanism are in direct engagement with said column wheel (4) under the pressure of elastic return elements, so that all the movements of said rockers (5, 6, 10, 21) result from the stepwise movement step of said column wheel (4) actuated by a single control button (1).
5. Pièce d'horlogerie selon l'une des revendications précédentes, dans laquelle tous les organes mobiles composant ledit mécanisme de chronographe s'étendent à un niveau situé au-dessus des organes mobile du mouvement de ladite pièce d'horlogerie.5. Timepiece according to one of the preceding claims, wherein all the movable members composing said chronograph mechanism extend at a level located above the movable members of the movement of said timepiece.
6. Pièce d'horlogerie selon l'une des revendications précédentes comportant un mouvement de forme non circulaire de montre-bracelet. 6. Timepiece according to one of the preceding claims comprising a non-circular movement of wristwatch.
7. Pièce d'horlogerie selon l'une des revendications précédentes comprenant un rouage de finissage comportant un mobile démultiplicateur supplémentaire (24) entre la roue de centre (23) et le barillet moteur (22) pour permettre de disposer dans ledit barillet (22) un ressort moteur suscep- tible d'emmagasiner une réserve de marche de l'ordre de dix ours . 7. Timepiece according to one of the preceding claims comprising a gear train comprising an additional reduction gear (24) between the center wheel (23) and the motor barrel (22) to allow to have in said barrel (22 ) a mainspring capable of storing a power reserve of the order of ten bears.
8. Pièce d'horlogerie selon la revendication 7, dont le mouvement d'horlogerie est muni d'un mécanisme indicateur de réserve de marche. 8. Timepiece according to claim 7, the timepiece movement is provided with a power reserve indicator mechanism.
EP02769838A 2001-11-09 2002-11-06 Mechanically driven timepiece associated with a chronograph Expired - Lifetime EP1461667B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP02769838A EP1461667B1 (en) 2001-11-09 2002-11-06 Mechanically driven timepiece associated with a chronograph

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
EP01811078A EP1310840A1 (en) 2001-11-09 2001-11-09 Mechanically driven time piece associated with a chronograph
EP01811078 2001-11-09
PCT/CH2002/000597 WO2003040834A2 (en) 2001-11-09 2002-11-06 Mechanically driven timepiece component associated with a chronograph
EP02769838A EP1461667B1 (en) 2001-11-09 2002-11-06 Mechanically driven timepiece associated with a chronograph

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EP1461667A2 true EP1461667A2 (en) 2004-09-29
EP1461667B1 EP1461667B1 (en) 2010-01-06

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EP02769838A Expired - Lifetime EP1461667B1 (en) 2001-11-09 2002-11-06 Mechanically driven timepiece associated with a chronograph

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AT (1) ATE454653T1 (en)
AU (1) AU2002336025A1 (en)
DE (1) DE60235042D1 (en)
WO (1) WO2003040834A2 (en)

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Publication number Priority date Publication date Assignee Title
CH698758B1 (en) * 2005-11-07 2009-10-15 Maurice Lacroix Sa chronograph movement.
EP2503408B1 (en) 2011-03-22 2014-10-15 De Grisogono S.A. Control device for clock movement

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Publication number Priority date Publication date Assignee Title
FR671111A (en) * 1929-03-08 1929-12-09 Mathias Et Edmond Ulmann Chronograph. - simplified counter

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Title
See references of WO03040834A2 *

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WO2003040834A3 (en) 2004-05-13
ATE454653T1 (en) 2010-01-15
EP1461667B1 (en) 2010-01-06
WO2003040834A2 (en) 2003-05-15
DE60235042D1 (en) 2010-02-25
EP1310840A1 (en) 2003-05-14
AU2002336025A1 (en) 2003-05-19

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