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EP1944662A1 - Hour chiming mechanism - Google Patents

Hour chiming mechanism Download PDF

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Publication number
EP1944662A1
EP1944662A1 EP07100554A EP07100554A EP1944662A1 EP 1944662 A1 EP1944662 A1 EP 1944662A1 EP 07100554 A EP07100554 A EP 07100554A EP 07100554 A EP07100554 A EP 07100554A EP 1944662 A1 EP1944662 A1 EP 1944662A1
Authority
EP
European Patent Office
Prior art keywords
mechanism according
wheel
gear train
variator
speed
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.)
Withdrawn
Application number
EP07100554A
Other languages
German (de)
French (fr)
Inventor
Alberto Papi
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.)
Girard Perregaux SA
Vaucher Manufacture Fleurier SA
Original Assignee
Girard Perregaux SA
Vaucher Manufacture Fleurier 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 Girard Perregaux SA, Vaucher Manufacture Fleurier SA filed Critical Girard Perregaux SA
Priority to EP07100554A priority Critical patent/EP1944662A1/en
Priority to US12/523,120 priority patent/US7965584B2/en
Priority to PCT/EP2008/050302 priority patent/WO2008090041A1/en
Priority to CN2008800022906A priority patent/CN101595435B/en
Priority to JP2009545189A priority patent/JP2010515908A/en
Priority to EP08701442A priority patent/EP2102718A1/en
Publication of EP1944662A1 publication Critical patent/EP1944662A1/en
Withdrawn legal-status Critical Current

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Classifications

    • 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
    • G04B21/00—Indicating the time by acoustic means
    • G04B21/02—Regular striking mechanisms giving the full hour, half hour or quarter hour
    • G04B21/06—Details of striking mechanisms, e.g. hammer, fan governor
    • 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
    • G04B21/00—Indicating the time by acoustic means
    • G04B21/02—Regular striking mechanisms giving the full hour, half hour or quarter hour
    • G04B21/12—Reiterating watches or clocks

Definitions

  • the present invention relates to the striking mechanisms of the hours, either by passing or by repetition type.
  • Such ringtones are well known to those skilled in the art. They allow to indicate the time of sound, by a succession of notes struck on stamps.
  • Such watches include a power source and a striking device and are, for example, described in the book entitled “Complicated watches” by Institut Lecoultre, Watchmaking Editions, Bienne, 1951.
  • the regulator comprises a recoil anchor cooperating with a ratchet wheel whose working conditions define the frequency of the ring.
  • the amplitude of the anchor is defined by an eccentric mounted to hard friction on the frame. The greater the amplitude, the lower the frequency of hits. The adjustment of the frequency is therefore at the end of the kinematic chain, on the member ensuring the stability of the frequency of the sound signal.
  • This adjustment is made by a watchmaker, during manufacture, and involves relatively delicate operations. If the wearer wants a slower or faster signal, or if other factors have led to a change in the signal frequency, then it is necessary to call in a specialist.
  • the object of the present invention is to overcome these disadvantages.
  • This object is achieved by virtue of the fact that the mechanism furthermore comprises a speed variator integrated in this wheel, and control means cooperating with the variable speed drive so as to allow the change of the driving speed of the device. of ringtone.
  • the drive controller can be integrated in the train between the power source and the speed controller as well as between the energy source and the buzzer.
  • variable speed drive comprises two kinematic chains.
  • control means comprise a movable member movable from one to the other of two stable positions and cooperating with a mobile of the train, moved to make active one or the other of these chains.
  • control means comprise a member coupled to the cage for moving it along the axis of the shaft.
  • the balls move radially, changing the ratio of speeds between the input wheel and the output wheel.
  • the present invention also relates to a striking watch movement equipped with a mechanism according to the invention, and a watch provided with such a movement.
  • This watch further comprises a box provided with a control member accessible from the outside and cooperating with the control means. In this way, the user can himself change the frequency of the ring, without having to open the box.
  • the barrel 12 includes ( figure 2 ) a drum 12a, a shaft 12b pivotally mounted on the frame and on which the drum 12a can rotate, and a spring 12c housed in the drum 12a and connected thereto by its outer end and the shaft by its inner end.
  • the shaft 12b carries, integral in rotation, a wheel 18 provided with wolf teeth.
  • a wheel 20 is mounted idle on the shaft 12b. It carries a spring pawl 22 engaged in the teeth of the wheel 18. It is provided with an external toothing 20a, forming the first wheel of the train 10 and intended to cooperate with the device 16, as will be explained later.
  • the variator 16 comprises a mobile 24 pivotally mounted on the frame and a rocker 26 integral with the shaft of the mobile 24 and can pass from one to the other of the two positions shown in FIGS. figures 1 and 3 .
  • Flip-flop 26 carries, in addition, two mobiles 28 and 30 each comprising a wheel and a pinion. These mobiles mesh permanently with their wheel with the mobile 24, while the pinions of the mobiles 28 and 30 mesh respectively with the wheel 20 as the lever 26 occupies the positions shown on the figures 1 and 3 .
  • the number of teeth that comprise the wheels of the mobiles 28 and 30 are different.
  • the wheel of the mobile 28 has twenty-four teeth, that of the mobile twenty-seven.
  • the ratio of gears between the configurations illustrated respectively on the figures 1 and 3 is 9/8.
  • the gear train 10 further comprises three mobiles 32, 34 and 36.
  • the pinion of the mobile 32 is driven by the wheel of the mobile 24, while the wheel of the mobile 36 drives the steering wheel 14.
  • the wheel 10 further comprises at least one not shown movable meshing with the wheel 20 and connected to a control device actuating a hammer for striking a stamp, at given times.
  • This part of the mechanism is well known to those skilled in the art. It is particularly described in the previously mentioned work.
  • the frame carries two abutment members 38 cooperating with a positioning member 40 to allow the lever 26 to occupy two stable positions, respectively illustrated in FIGS. figures 1 and 3 . Without the need to describe them further, those skilled in the art will be able to choose a suitable technical solution for producing the abutment elements and the positioning member.
  • the ringing has a duration of approximately 18 seconds when the gear train 28 is engaged with the wheel 20, and of 20 seconds, when it is gear wheel 30 which meshes with wheel 20, a gap of about two seconds between the two positions.
  • the Figures 4 to 6 represent another type of drive 42, ball bearing, to replace the drive 16 described above.
  • the mechanism of Figures 1 to 3 equipped with such a member corresponds to a second embodiment.
  • This drive is, as shown on the figure 5 , adjusted so that the steering wheel 14 has a maximum speed, and on the figure 4 a minimum speed.
  • the ring 62 is pivotally and slidably mounted on the cylindrical portions 46a and 48a. It angularly positions the balls 58 relative to each other, while allowing them to roll and move radially.
  • the conical surface 46b has a different apex angle than that of the conical surface 48b.
  • the apex angle defined by the surface 46b is smaller than that defined by the surface 48b.
  • the conical surfaces 46b, 48b and 60a respectively form first, second and third bearing surfaces for the balls 58.
  • the conditions of friction between the balls and the rolling surfaces must allow the balls to roll and not to slide on the surfaces 46b, 48b and 60a. In this way, the input wheel drives the output wheel. Due to the fact that the angles of the conical surfaces are different, the points of contact of the balls with the conical surfaces 46b and 48b are located at different distances from the axis AA, the raceways of these balls do not make the same length. This induces a speed differential between the input wheel and the output wheel, variable as a function of the position of the respective contact points of the balls with the conical surfaces 46b and 48b and also according to the apex angles defined by these surfaces.
  • the cage 60 By acting on the control member so that the steering wheel reaches its maximum speed and therefore, the duration of the ring is minimal, the cage 60 is moved in a direction parallel to the axis of the shaft 44, in the direction of the wheel 48. The wheel 48 is then pushed back, the spring 54 being compressed. This situation is illustrated in figure 5 . For a medium winding of the spring of the barrel, the ringing then has a duration of approximately 15 seconds.
  • the spring 54 By acting on the control member so that the steering wheel reaches its minimum speed and therefore, the duration of the ringing is maximum, the spring 54 makes the cylindrical portion 48a enter the cylindrical portion 46a, radially pushing the balls 58 to the outside, which increases the relationship between speed of the input wheel 48 and the output wheel 46.
  • This situation is illustrated in FIG. figure 4 .
  • the ringing For an average winding of the spring of the barrel, the ringing then has a duration of approximately 17 seconds, or 2 seconds more than in the position of the figure 5 .
  • control member can be stabilized at each position between the first and second extreme positions.
  • duration of the ringing sequence can be adjusted continuously between the maximum and minimum periods.
  • the control member may, for example, be an endless screw accessible from the inside of the watch case, in order to be able, by means of a screwdriver, to adjust the duration and frequency of the hour ringing. .
  • control member could also act on the position of one of the input or output wheels, an elastic member holding the conical surface of the cage 60 in contact with the balls.
  • the figure 7 illustrates schematically the manner in which the variable speed drive can be integrated into the gear train 10, in a watch equipped with a speed regulator, such as a flywheel type for example.
  • a speed regulator such as a flywheel type for example.
  • the energy source 12 the speed regulator 14 and the striking device 68 schematically represented by rectangles. They are interconnected by the gear train 10, which comprises three branches 10a, 10b and 10c, respectively connected to the power source 12, the speed regulator 14 and the striking device 68.
  • the speed variator 16 may be placed in one or the other of the three locations, identified 16a, 16b and 16c, or on the branch 10a, on the branch 10c and at the point of intersection of the three branches.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Transmission Devices (AREA)
  • Springs (AREA)
  • Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
  • Friction Gearing (AREA)

Abstract

The mechanism has a gear-train (10) connecting a barrel (12) to a fly-wheel (14) and a chiming device. An isochronous speed regulator (16) is integrated with the gear-train between the barrel and fly-wheel, and a controlling unit comprises a lever (26) cooperated with the speed regulator to change the driving speed of the chiming device and cooperated with mobiles (28, 30). The speed regulator is integrated in the gear-train between the barrel and chiming device.

Description

Domaine techniqueTechnical area

La présente invention se rapporte aux mécanismes de sonnerie des heures, soit en passant, soit de type répétition.The present invention relates to the striking mechanisms of the hours, either by passing or by repetition type.

Etat de la techniqueState of the art

De telles sonneries sont bien connues de l'homme du métier. Elles permettent d'indiquer l'heure de manière sonore, par une succession de notes frappées sur des timbres. De telles montres comportent une source d'énergie et un dispositif de sonnerie et sont, par exemple, décrite dans l'ouvrage intitulé "Les montres compliquées" de François Lecoultre, Editions horlogères, Bienne, 1951.Such ringtones are well known to those skilled in the art. They allow to indicate the time of sound, by a succession of notes struck on stamps. Such watches include a power source and a striking device and are, for example, described in the book entitled "Complicated watches" by François Lecoultre, Watchmaking Editions, Bienne, 1951.

De tels mécanismes nécessitent des réglages importants, pour assurer une qualité sonore élevée tout en ne requérant qu'une énergie très faible. L'un des réglages les plus délicats concerne l'ajustement de la fréquence des coups frappés. Ce réglage est obtenu par un régulateur de vitesse relié à la source d'énergie par un rouage. Dans les systèmes connus, le régulateur comporte une ancre à recul coopérant avec une roue à rochet dont les conditions de travail définissent la fréquence de la sonnerie. L'amplitude de l'ancre est définie par un excentrique monté à frottement dur sur le bâti. Plus l'amplitude est grande, plus la fréquence des coups frappés est basse. Le réglage de la fréquence se fait donc en fin de chaîne cinématique, sur l'organe assurant la stabilité de la fréquence du signal sonore.Such mechanisms require significant adjustments, to ensure high sound quality while requiring only very low energy. One of the most delicate settings is the adjustment of the frequency of the hits. This adjustment is obtained by a speed controller connected to the energy source by a gear train. In known systems, the regulator comprises a recoil anchor cooperating with a ratchet wheel whose working conditions define the frequency of the ring. The amplitude of the anchor is defined by an eccentric mounted to hard friction on the frame. The greater the amplitude, the lower the frequency of hits. The adjustment of the frequency is therefore at the end of the kinematic chain, on the member ensuring the stability of the frequency of the sound signal.

Ce réglage s'effectue par un horloger, en cours de fabrication, et implique des opérations relativement délicates. Si le porteur souhaite un signal plus lent ou plus rapide, ou si d'autres facteurs ont conduit à une modification de la fréquence du signal, il est alors nécessaire de faire appel à un spécialiste.This adjustment is made by a watchmaker, during manufacture, and involves relatively delicate operations. If the wearer wants a slower or faster signal, or if other factors have led to a change in the signal frequency, then it is necessary to call in a specialist.

Divulgation de l'inventionDisclosure of the invention

Le but de la présente invention est de pallier ces inconvénients. Ce but est atteint grâce au fait que le mécanisme comporte, en outre, un variateur de vitesse, intégré à ce rouage, et des moyens de commande coopérant avec le variateur de vitesse de manière à permettre le changement de la vitesse d'entraînement du dispositif de sonnerie.The object of the present invention is to overcome these disadvantages. This object is achieved by virtue of the fact that the mechanism furthermore comprises a speed variator integrated in this wheel, and control means cooperating with the variable speed drive so as to allow the change of the driving speed of the device. of ringtone.

Grâce à cela, la fréquence des coups frappés peut être réglée de façon aisée et plus précise.With this, the frequency of hits can be adjusted easily and more accurately.

Le variateur de vitesse peut être intégré dans le rouage aussi bien entre la source d'énergie et le régulateur de vitesse qu'entre la source d'énergie et le dispositif de sonnerie.The drive controller can be integrated in the train between the power source and the speed controller as well as between the energy source and the buzzer.

Dans un premier mode de réalisation, le variateur de vitesse comporte deux chaînes cinématiques. En outre, les moyens de commande comprennent un organe mobile pouvant être déplacé de l'une à l'autre de deux positions stables et coopérant avec un mobile du rouage, déplacé pour rendre active l'une ou l'autre de ces chaînes.In a first embodiment, the variable speed drive comprises two kinematic chains. In addition, the control means comprise a movable member movable from one to the other of two stable positions and cooperating with a mobile of the train, moved to make active one or the other of these chains.

Dans un deuxième mode de réalisation, le variateur est à réglage continu, par exemple de type à roulement à billes. Il comporte avantageusement :

  • une roue d'entrée munie d'une première surface conique,
  • une roue de sortie coaxiale à la roue d'entrée et munie d'une deuxième surface conique,
  • un arbre portant ces deux roues et sur lequel elles peuvent se mouvoir librement l'une par rapport à l'autre,
  • un organe élastique coopérant avec l'arbre et tendant à rapprocher ces roues l'une de l'autre,
  • une cage comportant une troisième surface conique coaxiale aux roues, et
  • des billes en appui contre ces surfaces coniques.
In a second embodiment, the drive is continuously adjustable, for example ball bearing type. It advantageously comprises:
  • an input wheel provided with a first conical surface,
  • an output wheel coaxial with the input wheel and provided with a second conical surface,
  • a tree carrying these two wheels and on which they can move freely relative to each other,
  • an elastic member cooperating with the shaft and tending to bring these wheels closer to one another,
  • a cage having a third conical surface coaxial with the wheels, and
  • balls bearing against these conical surfaces.

En outre, les moyens de commande comprennent un organe couplé à la cage pour la déplacer selon l'axe de l'arbre. Ainsi, en déplaçant axialement la cage, les billes se déplacent radialement, modifiant le rapport des vitesses entre la roue d'entrée et la roue de sortie.In addition, the control means comprise a member coupled to the cage for moving it along the axis of the shaft. Thus, by moving axially the cage, the balls move radially, changing the ratio of speeds between the input wheel and the output wheel.

La présente invention concerne également un mouvement de montre à sonnerie équipé d'un mécanisme selon l'invention, ainsi qu'une montre munie d'un tel mouvement. Cette montre comporte, en outre, une boîte munie d'un organe de commande accessible de l'extérieur et coopérant avec les moyens de commande. De la sorte, l'utilisateur peut lui-même changer la fréquence de la sonnerie, sans devoir ouvrir la boîte.The present invention also relates to a striking watch movement equipped with a mechanism according to the invention, and a watch provided with such a movement. This watch further comprises a box provided with a control member accessible from the outside and cooperating with the control means. In this way, the user can himself change the frequency of the ring, without having to open the box.

Brève description des dessinsBrief description of the drawings

L'invention sera mieux comprise à la lecture de la description qui va suivre, donnée à titre d'exemple et faite en référence au dessin annexé dans lequel :

  • les figures 1 et 2 représentent, respectivement vu en plan et en coupe, le schéma de principe d'un premier mode de réalisation d'un mécanisme selon l'invention, dans une première position de travail ;
  • la figure 3 est une vue en plan du mécanisme des figures 1 et 2, dans une deuxième position de travail,
  • les figures 4 et 5, illustrent, vu en coupe, un organe de changement de vitesse selon un deuxième mode de réalisation, dans deux positions extrêmes, alors que la figure 6 montre cet organe vu de dessus, dans la position correspondant à la figure 5, et
  • la figure 7 montre schématiquement différentes configurations envisageables pour assurer le changement de fréquence de la sonnerie.
The invention will be better understood on reading the description which follows, given by way of example and with reference to the appended drawing in which:
  • the figures 1 and 2 are respectively seen in plan and in section, the block diagram of a first embodiment of a mechanism according to the invention, in a first working position;
  • the figure 3 is a plan view of the mechanism of figures 1 and 2 in a second work position,
  • the figures 4 and 5 , illustrate, in section, a gearshift member according to a second embodiment, in two extreme positions, while the figure 6 shows this organ seen from above, in the position corresponding to the figure 5 , and
  • the figure 7 schematically shows different configurations possible to ensure the frequency change of the ring.

Mode(s) de réalisation de l'inventionMode (s) of realization of the invention

Le premier mode de réalisation du mécanisme selon l'invention est représenté sur les figures 1 à 3, il comporte essentiellement, disposés sur un bâti non représenté et qui porte des paliers destinés à permettre le pivotement des pièces mobiles :

  • un rouage 10, monté pivotant sur le bâti,
  • une source d'énergie formée d'un barillet 12,
  • un volant à inertie 14 relié au barillet 12 par le rouage 10 dont il assure la régulation du mouvement de rotation, et
  • un variateur de vitesse 16 intégré au rouage 10.
The first embodiment of the mechanism according to the invention is represented on the Figures 1 to 3 , it essentially comprises, arranged on a not shown frame and bearing bearings intended to allow the pivoting of moving parts:
  • a gear train 10, pivotally mounted on the frame,
  • an energy source formed of a cylinder 12,
  • an inertial flywheel 14 connected to the cylinder 12 by the gear 10 which it regulates the rotational movement, and
  • a speed variator 16 integrated in the gear train 10.

Le barillet 12 comprend (figure 2) un tambour 12a, un arbre 12b monté pivotant sur le bâti et sur lequel peut tourner le tambour 12a, et un ressort 12c logé dans le tambour 12a et relié à ce dernier par son extrémité extérieure et à l'arbre par son extrémité intérieure.The barrel 12 includes ( figure 2 ) a drum 12a, a shaft 12b pivotally mounted on the frame and on which the drum 12a can rotate, and a spring 12c housed in the drum 12a and connected thereto by its outer end and the shaft by its inner end.

L'arbre 12b porte, solidaire en rotation, une roue 18 munie de dents de loup. Une roue 20 est montée folle sur l'arbre 12b. Elle porte un cliquet à ressort 22 engagé dans la denture de la roue 18. Elle est munie d'une denture extérieure 20a, formant la première roue du rouage 10 et destinée à coopérer avec le dispositif 16, comme cela sera expliqué plus loin.The shaft 12b carries, integral in rotation, a wheel 18 provided with wolf teeth. A wheel 20 is mounted idle on the shaft 12b. It carries a spring pawl 22 engaged in the teeth of the wheel 18. It is provided with an external toothing 20a, forming the first wheel of the train 10 and intended to cooperate with the device 16, as will be explained later.

Le variateur 16 comprend un mobile 24 monté pivotant sur le bâti et une bascule 26 solidaire de l'arbre du mobile 24 et pouvant passer de l'une à l'autre des deux positions représentées aux figures 1 et 3. La bascule 26 porte, en outre, deux mobiles 28 et 30 comprenant chacun une roue et un pignon. Ces mobiles engrènent en permanence par leur roue avec le mobile 24, tandis que les pignons des mobiles 28 et 30 engrènent respectivement avec la roue 20 selon que le levier 26 occupe les positions représentées sur les figures 1 et 3.The variator 16 comprises a mobile 24 pivotally mounted on the frame and a rocker 26 integral with the shaft of the mobile 24 and can pass from one to the other of the two positions shown in FIGS. figures 1 and 3 . Flip-flop 26 carries, in addition, two mobiles 28 and 30 each comprising a wheel and a pinion. These mobiles mesh permanently with their wheel with the mobile 24, while the pinions of the mobiles 28 and 30 mesh respectively with the wheel 20 as the lever 26 occupies the positions shown on the figures 1 and 3 .

Le nombre de dents que comportent les roues des mobiles 28 et 30 sont différents. Dans l'exemple représenté au dessin, la roue du mobile 28 comporte vingt-quatre dents, celle du mobile 30 vingt-sept. Comme tous les autres constituants de la chaîne cinématique comprise entre le barillet 12 et le volant 14 ne changent pas, le rapport d'engrenages entre les configurations illustrées respectivement sur les figures 1 et 3 est de 9/8.The number of teeth that comprise the wheels of the mobiles 28 and 30 are different. In the example shown in the drawing, the wheel of the mobile 28 has twenty-four teeth, that of the mobile twenty-seven. Like all the other components of the kinematic chain comprised between the barrel 12 and the flywheel 14 do not change, the ratio of gears between the configurations illustrated respectively on the figures 1 and 3 is 9/8.

Le rouage 10 comporte, en outre, trois mobiles 32, 34 et 36. Le pignon du mobile 32 est entraîné par la roue du mobile 24, alors que la roue du mobile 36 entraîne le volant 14.The gear train 10 further comprises three mobiles 32, 34 and 36. The pinion of the mobile 32 is driven by the wheel of the mobile 24, while the wheel of the mobile 36 drives the steering wheel 14.

Le rouage 10 comprend, en outre, au moins un mobile non représenté engrenant avec la roue 20 et relié à un dispositif de commande actionnant un marteau destiné à frapper sur un timbre, à des instants donnés. Cette partie du mécanisme est bien connue de l'homme du métier. Elle est notamment décrite dans l'ouvrage mentionné précédemment.The wheel 10 further comprises at least one not shown movable meshing with the wheel 20 and connected to a control device actuating a hammer for striking a stamp, at given times. This part of the mechanism is well known to those skilled in the art. It is particularly described in the previously mentioned work.

Le bâti porte deux éléments de butée 38 coopérant avec un organe de positionnement 40 pour permettre au levier 26 de pouvoir occuper deux positions stables, respectivement illustrées aux figures 1 et 3. Sans qu'il soit besoin de les décrire davantage, l'homme du métier saura choisir une solution technique adéquate pour réaliser les éléments de butée et l'organe de positionnement.The frame carries two abutment members 38 cooperating with a positioning member 40 to allow the lever 26 to occupy two stable positions, respectively illustrated in FIGS. figures 1 and 3 . Without the need to describe them further, those skilled in the art will be able to choose a suitable technical solution for producing the abutment elements and the positioning member.

Ainsi, pour un armage moyen du ressort du barillet, la sonnerie a une durée d'environ 18 secondes lorsque le rouage 28 est en prise avec la roue 20, et de 20 secondes, lorsque c'est le rouage 30 qui engrène avec la roue 20, soit un écart d'environ deux secondes entre les deux positions.Thus, for an average winding of the spring of the barrel, the ringing has a duration of approximately 18 seconds when the gear train 28 is engaged with the wheel 20, and of 20 seconds, when it is gear wheel 30 which meshes with wheel 20, a gap of about two seconds between the two positions.

Les figures 4 à 6, représentent un autre type de variateur 42, à roulement à billes, destiné à remplacer le variateur 16 décrit précédemment. Le mécanisme des figures 1 à 3 équipé d'un tel organe correspond à un deuxième mode de réalisation. Ce variateur est, comme représenté sur la figure 5, ajusté de manière à ce que le volant 14 ait une vitesse maximale, et sur la figure 4 une vitesse minimale.The Figures 4 to 6 , represent another type of drive 42, ball bearing, to replace the drive 16 described above. The mechanism of Figures 1 to 3 equipped with such a member corresponds to a second embodiment. This drive is, as shown on the figure 5 , adjusted so that the steering wheel 14 has a maximum speed, and on the figure 4 a minimum speed.

Le variateur 42 comprend :

  • un arbre 44 monté pivotant sur le bâti, définissant un axe AA et muni d'une collerette 44a à l'une de ses extrémités,
  • une roue de sortie 46 en prise avec le rouage 32, fixée rigidement sur l'arbre 44 et munie d'une première portion cylindrique 46a dont l'extrémité libre est tronquée pour former une première surface conique 46b,
  • une roue d'entrée 48 en prise avec la roue 20, montée pivotante et coulissante sur l'arbre 44, munie d'une deuxième portion cylindrique 48a orientée vers la roue 46 et de même dimension extérieure que la portion cylindrique 46a, et formant une deuxième surface conique 48b,
  • une pierre intercalaire 50, en appui contre la collerette 44a,
  • une douille 52 montée pivotante sur l'arbre 44, en appui contre la pierre 50,
  • un ressort 54 disposé entre la douille 52 et la coupelle 48a, et tendant à pousser la roue 48 en direction de la roue 46,
  • un roulement à billes 56 comportant des billes 58, une cage 60 munie d'une troisième surface conique 60a, et une bague 62 dans laquelle sont engagées la coupelle 48a et la portion cylindrique 46a, les billes 58 étant disposées de manière à être en contact avec les surfaces coniques 46b, 48b et 60a, et positionnées par la bague 62,
  • un chariot de commande 64 relié à la cage 60 et monté sur le bâti de manière à pouvoir se déplacer selon une direction parallèle à l'axe AA,
  • un organe de commande agencé de manière à permettre le déplacement du chariot 64 entre une première et une deuxième positions extrêmes, définies respectivement par des butées et correspondant aux durées maximum et minimum de déroulement de la sonnerie.
The variator 42 comprises:
  • a shaft 44 pivotally mounted on the frame, defining an axis AA and provided with a flange 44a at one of its ends,
  • an output wheel 46 in engagement with gear train 32, rigidly fixed to shaft 44 and provided with a first cylindrical portion 46a whose free end is truncated to form a first conical surface 46b,
  • an input wheel 48 in engagement with the wheel 20, pivotally and slidably mounted on the shaft 44, provided with a second cylindrical portion 48a facing the wheel 46 and of the same external dimension as the cylindrical portion 46a, and forming a second conical surface 48b,
  • an intermediate stone 50, bearing against the flange 44a,
  • a sleeve 52 pivotally mounted on the shaft 44, bearing against the stone 50,
  • a spring 54 disposed between the sleeve 52 and the cup 48a, and tending to push the wheel 48 towards the wheel 46,
  • a ball bearing 56 comprising balls 58, a cage 60 provided with a third conical surface 60a, and a ring 62 in which are engaged the cup 48a and the cylindrical portion 46a, the balls 58 being arranged so as to be in contact with the conical surfaces 46b, 48b and 60a, and positioned by the ring 62,
  • a control carriage 64 connected to the cage 60 and mounted on the frame so as to be able to move in a direction parallel to the axis AA,
  • a control member arranged so as to allow the carriage 64 to move between a first and a second extreme positions, respectively defined by stops and corresponding to the maximum and minimum periods of unwinding of the ring.

Comme on peut le voir plus particulièrement sur les figures 4 et 5, la bague 62 est montée pivotante et coulissante sur les portions cylindriques 46a et 48a. Elle positionne angulairement les billes 58 les unes par rapport aux autres, tout en leur permettant de rouler et de se déplacer radialement.As can be seen more particularly on figures 4 and 5 the ring 62 is pivotally and slidably mounted on the cylindrical portions 46a and 48a. It angularly positions the balls 58 relative to each other, while allowing them to roll and move radially.

La surface conique 46b présente un angle au sommet différent de celui de la surface conique 48b. Dans l'exemple, l'angle au sommet défini par la surface 46b est plus faible que celui défini par la surface 48b.The conical surface 46b has a different apex angle than that of the conical surface 48b. In the example, the apex angle defined by the surface 46b is smaller than that defined by the surface 48b.

Les surfaces coniques 46b, 48b et 60a forment respectivement des première, deuxième et troisième surfaces de roulement pour les billes 58. A la différence d'un roulement à billes conventionnel, on notera que les conditions de frottement entre les billes et les surfaces de roulement doivent permettre aux billes de rouler et non de glisser sur les surfaces 46b, 48b et 60a. De la sorte, la roue d'entrée entraîne la roue de sortie. Grâce au fait que les angles des surfaces coniques sont différents, les points de contact des billes avec les surfaces coniques 46b et 48b sont situés à des distances différentes de l'axe AA, les chemins de roulement de ces billes ne font donc pas la même longueur. Cela induit un différentiel de vitesse entre la roue d'entrée et la roue de sortie, variable en fonction de la position des points de contact respectifs des billes avec les surfaces coniques 46b et 48b et également fonction des angles au sommet définis par ces surfaces.The conical surfaces 46b, 48b and 60a respectively form first, second and third bearing surfaces for the balls 58. Unlike a conventional ball bearing, it will be noted that the conditions of friction between the balls and the rolling surfaces must allow the balls to roll and not to slide on the surfaces 46b, 48b and 60a. In this way, the input wheel drives the output wheel. Due to the fact that the angles of the conical surfaces are different, the points of contact of the balls with the conical surfaces 46b and 48b are located at different distances from the axis AA, the raceways of these balls do not make the same length. This induces a speed differential between the input wheel and the output wheel, variable as a function of the position of the respective contact points of the balls with the conical surfaces 46b and 48b and also according to the apex angles defined by these surfaces.

En agissant sur l'organe de commande pour que le volant atteigne sa vitesse maximale et donc, que la durée de la sonnerie soit minimale, la cage 60 est déplacée selon une direction parallèle à l'axe de l'arbre 44, en direction de la roue 48. La roue 48 est alors repoussée, le ressort 54 étant compressé. Cette situation est illustrée à la figure 5. Pour un armage moyen du ressort du barillet, la sonnerie a alors une durée d'environ 15 secondes.By acting on the control member so that the steering wheel reaches its maximum speed and therefore, the duration of the ring is minimal, the cage 60 is moved in a direction parallel to the axis of the shaft 44, in the direction of the wheel 48. The wheel 48 is then pushed back, the spring 54 being compressed. This situation is illustrated in figure 5 . For a medium winding of the spring of the barrel, the ringing then has a duration of approximately 15 seconds.

En agissant sur l'organe de commande pour que le volant atteigne sa vitesse minimale et donc, que la durée de la sonnerie soit maximale, le ressort 54 fait pénétrer la portion cylindrique 48a dans la portion cylindrique 46a, repoussant radialement les billes 58 vers l'extérieur, ce qui accroît le rapport entre la vitesse de la roue d'entrée 48 et de la roue de sortie 46. Cette situation est illustrée à la figure 4. Pour un armage moyen du ressort du barillet, la sonnerie a alors une durée d'environ 17 secondes, soit 2 secondes de plus que dans la position de la figure 5.By acting on the control member so that the steering wheel reaches its minimum speed and therefore, the duration of the ringing is maximum, the spring 54 makes the cylindrical portion 48a enter the cylindrical portion 46a, radially pushing the balls 58 to the outside, which increases the relationship between speed of the input wheel 48 and the output wheel 46. This situation is illustrated in FIG. figure 4 . For an average winding of the spring of the barrel, the ringing then has a duration of approximately 17 seconds, or 2 seconds more than in the position of the figure 5 .

De manière avantageuse, l'organe de commande peut être stabilisé à chaque position comprise entre les première et deuxième positions extrêmes. De la sorte, la durée du déroulement de la sonnerie peut être réglée en continu, entre les durées maximale et minimale.Advantageously, the control member can be stabilized at each position between the first and second extreme positions. In this way, the duration of the ringing sequence can be adjusted continuously between the maximum and minimum periods.

L'organe de commande peut, par exemple, être une vis sans fin accessible de l'intérieur de la boîte de la montre, pour pouvoir, au moyen d'un tournevis, ajuster la durée et la fréquence de la sonnerie de l'heure.The control member may, for example, be an endless screw accessible from the inside of the watch case, in order to be able, by means of a screwdriver, to adjust the duration and frequency of the hour ringing. .

On notera que l'organe de commande pourrait aussi agir sur la position de l'une des roues d'entrée ou de sortie, un organe élastique maintenant la surface conique de la cage 60 au contact des billes.It will be noted that the control member could also act on the position of one of the input or output wheels, an elastic member holding the conical surface of the cage 60 in contact with the balls.

La figure 7 illustre schématiquement la manière dont le variateur de vitesse peut être intégré dans le rouage 10, dans une montre équipée d'un régulateur de vitesse, de type à volant d'inertie par exemple. Sur ce schéma, on peut voir la source d'énergie 12, le régulateur de vitesse 14 et le dispositif de sonnerie 68 schématiquement représentés par des rectangles. Ils sont reliés entre eux par le rouage 10, qui comporte trois branches 10a, 10b et 10c, respectivement reliées à la source d'énergie 12, au régulateur de vitesse 14 et au dispositif de sonnerie 68. Dans ce mécanisme, le variateur de vitesse 16 peut être placé en l'un ou l'autre des trois endroits, identifiés 16a, 16b et 16c, soit sur la branche 10a, sur la branche 10c et au point d'intersection des trois branches.The figure 7 illustrates schematically the manner in which the variable speed drive can be integrated into the gear train 10, in a watch equipped with a speed regulator, such as a flywheel type for example. In this diagram, one can see the energy source 12, the speed regulator 14 and the striking device 68 schematically represented by rectangles. They are interconnected by the gear train 10, which comprises three branches 10a, 10b and 10c, respectively connected to the power source 12, the speed regulator 14 and the striking device 68. In this mechanism, the speed variator 16 may be placed in one or the other of the three locations, identified 16a, 16b and 16c, or on the branch 10a, on the branch 10c and at the point of intersection of the three branches.

Si le mécanisme selon l'invention était muni d'un régulateur de vitesse sensiblement isochrone, il serait alors possible de placer le variateur aux positions 16b ou 16c, ou encore sur la branche 10b.If the mechanism according to the invention was provided with a substantially isochronous speed controller, it would then be possible to place the drive at positions 16b or 16c, or on the branch 10b.

Ainsi sont proposées deux réalisations permettant de faire varier la vitesse du déroulement d'une sonnerie de montre, l'une offrant deux vitesses, l'autre permettant un réglage continu de cette vitesse. Bien entendu, la description ci-dessus n'a été donnée qu'à titre d'illustration non limitative de l'invention et l'homme du métier pourra prévoir diverses variantes sans sortir du cadre de l'invention, particulièrement concernant les rapports de vitesse ou d'engrenage. Les surfaces de roulement pour les billes peuvent aussi ne pas être parfaitement coniques mais présenter une certaine concavité ou convexité.Thus two embodiments are proposed to vary the speed of the running of a watch ring, one offering two speeds, the other allowing a continuous adjustment of this speed. Of course, the description above has been given by way of non-limiting illustration of the invention and the skilled person can provide various variants without departing from the scope of the invention, particularly concerning the reports of speed or gear. The bearing surfaces for the balls may also not be perfectly conical but have a certain concavity or convexity.

Claims (8)

Mécanisme de sonnerie comportant : - une source d'énergie (12), - un régulateur de vitesse (14), - un dispositif de sonnerie (68), et - un rouage (10) reliant la source d'énergie (12) d'une part audit régulateur (14), d'autre part audit dispositif (68), caractérisé en ce qu'il comporte, en outre, un variateur de vitesse (16, 42) intégré audit rouage (10) et des moyens de commande (26, 64) coopérant avec le variateur de vitesse (16) de manière à permettre le changement de la vitesse d'entraînement du dispositif de sonnerie (68).Ringing mechanism comprising: a source of energy (12), a speed controller (14), a ringing device (68), and - a gear train (10) connecting the energy source (12) on the one hand to said regulator (14), on the other hand to said device (68), characterized in that it further comprises a speed variator (16, 42) integrated with said gear train (10) and control means (26, 64) cooperating with the variable speed drive (16) so as to enable the changing the driving speed of the striking device (68). Mécanisme selon la revendication 1, caractérisé en ce que ledit variateur de vitesse (16, 42) est intégré dans le rouage (10) entre la source d'énergie (12) et le régulateur de vitesse (14).Mechanism according to claim 1, characterized in that said variable speed drive (16, 42) is integrated in the gear train (10) between the energy source (12) and the speed regulator (14). Mécanisme selon la revendication 1, caractérisé en ce que ledit variateur de vitesse (16, 42) est intégré dans le rouage entre la source d'énergie (12) et le dispositif de sonnerie (68).Mechanism according to claim 1, characterized in that said variable speed drive (16, 42) is integrated in the gear train between the energy source (12) and the striking device (68). Mécanisme selon l'une des revendications 1 à 3, caractérisé en ce que le variateur de vitesse (16) comporte deux chaînes cinématiques (28, 26/30, 26) et en ce que les moyens de commande comprennent un organe mobile (26) pouvant être déplacé de l'une à l'autre de deux positions stables et coopérant avec des mobiles (28, 30) dudit rouage (10), déplacés pour rendre active l'une ou l'autre de ces chaînes.Mechanism according to one of Claims 1 to 3, characterized in that the variable speed drive (16) has two kinematic chains (28, 26/30, 26) and in that the control means comprise a movable member (26). can be moved from one to the other of two stable positions and cooperating with mobiles (28, 30) of said train (10), moved to make active one or the other of these chains. Mécanisme selon l'une des revendications 1 à 3, caractérisé en ce que ledit variateur (42) est à réglage continue.Mechanism according to one of claims 1 to 3, characterized in that said variator (42) is continuously adjustable. Mécanisme selon la revendication 5, caractérisé en ce que ledit variateur (42) est de type à roulement à billes.Mechanism according to claim 5, characterized in that said variator (42) is of the ball bearing type. Mécanisme selon la revendication 6, caractérisé en ce que le variateur comporte : - une roue d'entrée (48) munie d'une première surface conique (48b), - une roue de sortie (46) coaxiale à la roue d'entrée (48) et munie d'une deuxième surface conique (46b), - un arbre (44) portant lesdites roues (46, 48) et sur lequel elles peuvent se mouvoir l'une par rapport à l'autre, - une cage (60) comportant une troisième surface conique (60a) coaxiale auxdites roues (46, 48), et - des billes (58) maintenues en appui contre lesdites surfaces coniques (46b, 48b, 60a) par un organe élastique (54), et en ce que lesdits moyens de commande comprennent un organe (64) agencé pour éloigner ou rapprocher lesdites billes de l'axe dudit arbre (44).Mechanism according to claim 6, characterized in that the variator comprises: an input wheel (48) provided with a first conical surface (48b), - an output wheel (46) coaxial with the input wheel (48) and provided with a second conical surface (46b), - a shaft (44) carrying said wheels (46, 48) and on which they can move relative to each other, a cage (60) having a third conical surface (60a) coaxial with said wheels (46, 48), and balls (58) held in abutment against said conical surfaces (46b, 48b, 60a) by an elastic member (54), and in that said control means comprise a member (64) arranged to move said balls away from or closer to the axis of said shaft (44). Mouvement de montre à sonnerie, caractérisé en ce qu'il comporte un mécanisme selon l'une des revendications 1 à 7.Ring watch movement, characterized in that it comprises a mechanism according to one of claims 1 to 7.
EP07100554A 2007-01-15 2007-01-15 Hour chiming mechanism Withdrawn EP1944662A1 (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
EP07100554A EP1944662A1 (en) 2007-01-15 2007-01-15 Hour chiming mechanism
US12/523,120 US7965584B2 (en) 2007-01-15 2008-01-11 Hour indicating ringing mechanism
PCT/EP2008/050302 WO2008090041A1 (en) 2007-01-15 2008-01-11 Hour indicating ringing mechanism
CN2008800022906A CN101595435B (en) 2007-01-15 2008-01-11 Hour indicating ringing mechanism
JP2009545189A JP2010515908A (en) 2007-01-15 2008-01-11 Happening bell mechanism
EP08701442A EP2102718A1 (en) 2007-01-15 2008-01-11 Hour indicating ringing mechanism

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP07100554A EP1944662A1 (en) 2007-01-15 2007-01-15 Hour chiming mechanism

Publications (1)

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EP1944662A1 true EP1944662A1 (en) 2008-07-16

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EP07100554A Withdrawn EP1944662A1 (en) 2007-01-15 2007-01-15 Hour chiming mechanism
EP08701442A Withdrawn EP2102718A1 (en) 2007-01-15 2008-01-11 Hour indicating ringing mechanism

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EP08701442A Withdrawn EP2102718A1 (en) 2007-01-15 2008-01-11 Hour indicating ringing mechanism

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US (1) US7965584B2 (en)
EP (2) EP1944662A1 (en)
JP (1) JP2010515908A (en)
CN (1) CN101595435B (en)
WO (1) WO2008090041A1 (en)

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CH703247B1 (en) * 2010-06-04 2014-12-15 Milus Internat Sa acoustic indicator of reserve of a timepiece.
CH704457B1 (en) * 2011-02-11 2020-07-15 Montres Breguet Sa Watchmaking set including a mobile and a speed regulator
EP3547045B1 (en) * 2018-03-26 2022-05-04 Montres Breguet S.A. Timepiece transmission mechanism having reduced clutching effort

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Also Published As

Publication number Publication date
CN101595435B (en) 2011-12-21
US7965584B2 (en) 2011-06-21
JP2010515908A (en) 2010-05-13
CN101595435A (en) 2009-12-02
WO2008090041A1 (en) 2008-07-31
US20100046330A1 (en) 2010-02-25
EP2102718A1 (en) 2009-09-23

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