EP0531895A1 - One-way correcting means for a time display device - Google Patents

One-way correcting means for a time display device Download PDF

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Publication number
EP0531895A1
EP0531895A1 EP92115127A EP92115127A EP0531895A1 EP 0531895 A1 EP0531895 A1 EP 0531895A1 EP 92115127 A EP92115127 A EP 92115127A EP 92115127 A EP92115127 A EP 92115127A EP 0531895 A1 EP0531895 A1 EP 0531895A1
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EP
European Patent Office
Prior art keywords
finger
coil spring
cylindrical element
rod
tooth
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
EP92115127A
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German (de)
French (fr)
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EP0531895B1 (en
Inventor
Laurent Kaelin
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ETA SA Manufacture Horlogere Suisse
Ebauchesfabrik ETA AG
Original Assignee
Ebauchesfabrik ETA AG
Eta SA Fabriques dEbauches
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Publication of EP0531895A1 publication Critical patent/EP0531895A1/en
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    • G—PHYSICS
    • G04—HOROLOGY
    • G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
    • G04B27/00—Mechanical devices for setting the time indicating means
    • G04B27/02—Mechanical devices for setting the time indicating means by making use of the winding means
    • G04B27/04—Mechanical devices for setting the time indicating means by making use of the winding means with clutch wheel
    • G—PHYSICS
    • G04—HOROLOGY
    • G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
    • G04B11/00—Click devices; Stop clicks; Clutches
    • G04B11/02—Devices allowing the motion of a rotatable part in only one direction

Definitions

  • the present invention relates to a unidirectional correction device for at least one time display member of a timepiece, said display member having a circular element provided with teeth.
  • One-way correction systems for a time display member are known.
  • document EP-B-O 173 230 (US-A-4 634 287) describes a universal timepiece comprising a date ring and a disc making a step in twenty-four hours.
  • the mechanism used is a sliding gear which has a toothing and a three-tooth pinion. If the rod is actuated in one direction, the gear returns to a first position where the teeth are in engagement with the disc. If the rod is actuated in the opposite direction, the gear returns to a second position where the pinion is engaged with the ring.
  • several mobiles are interposed between the control rod and the time indicator which must be corrected, which leads to a relatively complicated and expensive construction.
  • the document CH-A-607 556 aims to suppress such mobiles and to directly correct a date ring from a sliding pinion sliding on the time-setting rod.
  • the sliding pinion has an annular groove in which is frictionally mounted a wire spring surrounding the groove on a little more than three quarters of its periphery.
  • a free end of the wire spring protrudes radially from the periphery of the sliding pinion and serves directly as a drive finger for advancing or reversing the date ring by turning the rod respectively in one direction or the other.
  • this construction does not lead to the solution proposed by the present invention, namely a unidirectional correction device, since the spring of the cited document acts on the date ring in both directions of correction. It is a bidirectional device.
  • the document CH-A-290 100 describes a unidirectional control system for the reassembly of an alarm clock.
  • On the axis of the winding rod are mounted, one after the other, two sockets of the same diameter on which a coil spring is wound.
  • One of the sockets is integral with the rod while the other is free on the same rod.
  • the free socket is integral with a toothed wheel itself integral with a barrel spring.
  • this is a coupling system where the coil spring can only act if it encloses two elements (two sockets) placed one next to the other, which has nothing in common with the present invention where the coil spring encloses only one element (a sliding pinion) and where said spring has a raised end which drives a second element (a date disc).
  • the unidirectional correction device of the present invention is characterized in that it comprises a cylindrical element around which is wound with a slight tightening a coil spring, one end of which is raised. radially to serve finger capable of coming into contact with a tooth of the circular element and rotating it when said cylindrical element is rotated in a direction in which the force exerted on the finger by the tooth is directed in a direction tending to wind the coil spring around the cylindrical element and tightening it around it, said circular element remaining stationary when the cylindrical element is rotated in a direction for which the force exerted on the finger by the tooth is directed in a steering tending to open the coil spring and to release it from said cylindrical element.
  • Figures 1 and 4 show a unidirectional correction device 1 capable of correcting a time display member having a circular element 2 provided with teeth 3.
  • the correction device 1 comprises a cylindrical element 4 around which is wound with a slight tightening, a coil spring 5. One end of this spring is raised radially to serve as a control finger 6.
  • this finger 6 is capable of coming into contact with a tooth 3 of the circular element 2 and rotating this element in the direction of the arrow E when the cylindrical element 4 is driven in rotation in the direction of arrow A. Indeed, the resistance presented by tooth 3 against finger 6 develops a reaction force F1 which tends to wind the coil spring 5 around the cylindrical element 4 and hug him around him. We can say that the coil spring is locked around the cylindrical element of which it becomes integral.
  • a unidirectional correction system has therefore been produced since the time indicator 2 is advanced if the device 1 is turned in one direction, this indicator remaining stationary if the device is turned in the direction reverse.
  • the principle of the invention is very general and can be very simply verified by introducing a coil spring on a rod, the internal diameter of which is very slightly less than the diameter of the rod and one end of which is raised along a radius of the rod to form a control finger.
  • the device can be used in a timepiece, in particular for manual correction of various time indicators. It is clear however that it could be used wherever a one-way control is desired.
  • the cylindrical element 4 around which is wound the coil spring 5 is carried by a sliding pinion 8, cooperating with a time-setting rod 9.
  • the relative movement of the rod 9 relative to the sliding pinion 8 is ensured by a mechanism known elsewhere, and comprising in particular a pull tab 10 and a rocker 11.
  • the sliding pinion comprises a toothing 12 in engagement here with a reference 13, the latter meshing with a timer wheel 14.
  • the rod 9 is extended as far as possible and occupies a second pulled position which allows the hour and minute hands of the timepiece to be set to the time.
  • the finger 6 of the coil spring 5 is not engaged in the teeth 3 of the circular element 2 which is here a date ring with internal teeth well known from the state of the art.
  • Figure 4 shows a rod 9 occupying a first pulled position which allows the correction of the date ring 2.
  • the finger 6 of the coil spring 5 is engaged in the teeth 3 of the ring.
  • FIG. 5 which is a section along the line V-V in FIG. 4.
  • Figure 3 shows the rod 9 in the neutral, pushed position. Here no correction is made because the finger 6 is not engaged in the toothing 3 of the ring 2 and the toothing 12 of the sliding pinion 8 does not mesh with the reference 13.
  • FIG. 3 will also explain the way in which the sliding pinion 8 is executed.
  • the first part comprises a hub 20 in which slides a square 21 ending the rod 9.
  • the first part also carries a flange 22 preferably made in one piece with the hub.
  • the second part comprises the toothed pinion 24 proper carrying the edge teeth 12.
  • This pinion is extended by a neck 23 which forms the cylindrical element 4, which in turn carries the coil spring 5.
  • FIG. 3 shows that the outer diameter of the neck 23 is smaller than the diameter of the toothed pinion 24 and the flange 22 so that the coil spring 5 is held in place axially between the two parts forming the sliding pinion.
  • This construction by driving is especially advantageous to allow the mounting of the coil spring 5 which is slid over the neck 23 before the two parts in question are assembled.
  • the coil spring 5 is wound with a slight tightening around the cylindrical element 4. This tightening is obtained by providing a spring whose internal diameter is slightly less than the diameter of the cylindrical element.
  • the outside diameter of the neck 23 is 3.6 mm while the diameter of the coil spring 5 is 3.5 mm before mounting on the neck.
  • the locking torque of the coil spring on the cylindrical element depends on the number of turns making up the spring and, to a certain extent, on the diameter of the wire used to make the spring.
  • a spring made with 0.15 mm wire and comprising three turns gave excellent results.
  • the correction device according to the invention acting in a unidirectional manner, it is possible to design a double device which, for a position taken from the rod, corrects two different time indicators indicating for example, one the date and the other the day of the week and this following the direction of rotation of the rod. It is enough to have two coil springs, one wound in one direction and correcting the date and the other wound in the opposite direction and correcting the day of the week.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electromechanical Clocks (AREA)
  • Electric Clocks (AREA)
  • Adornments (AREA)
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  • Orthopedics, Nursing, And Contraception (AREA)
  • Purses, Travelling Bags, Baskets, Or Suitcases (AREA)

Abstract

This unidirectional correction arrangement (1) for a display device exhibiting a circular element (2) provided with teeth (3) includes a cylindrical element (4) around which is wrapped a helical spring (5), one of the ends of which serves as a finger (6) adapted to come into contact with a tooth (3). When the cylindrical element (4) is driven in rotation in a sense (A) for which the force (F1) exerted on the finger by the tooth is directed in a sense tending to wrap the spring around the cylindrical element and to tighten it therearound, the circular element (2) rotates. Such circular element (2) will not be driven when the cylindrical element (4) is driven so as to rotate in a sense (B) for which the force (F2) exerted on the finger by the tooth is directed in a sense tending to open the helical spring.

Description

La présente invention concerne un dispositif de correction unidirectionnel d'au moins un organe d'affichage horaire d'une pièce d'horlogerie, ledit organe d'affichage présentant un élément circulaire pourvu de dents.The present invention relates to a unidirectional correction device for at least one time display member of a timepiece, said display member having a circular element provided with teeth.

Des systèmes de correction unidirectionnel d'un organe d'affichage horaire sont connus. Par exemple, le document EP-B-O 173 230 (US-A-4 634 287) décrit une pièce d'horlogerie universelle comportant un anneau de quantième et un disque faisant un pas en vingt-quatre heures. Selon qu'on tourne la tige de mise à l'heure dans un sens ou dans l'autre, on corrige soit les indications données par l'anneau, soit les indications données par le disque. Le mécanisme utilisé est un renvoi baladeur qui comporte une denture et un pignon à trois dents. Si l'on actionne la tige dans un sens, le renvoi se met dans une première position où la denture est en prise avec le disque. Si l'on actionne la tige dans le sens opposé, le renvoi se met dans une seconde position où le pignon est en prise avec l'anneau. Dans une telle construction plusieurs mobiles sont interposés entre la tige de commande et l'indicateur horaire qu'il faut corriger, ce qui conduit à une construction relativement compliquée et onéreuse.One-way correction systems for a time display member are known. For example, document EP-B-O 173 230 (US-A-4 634 287) describes a universal timepiece comprising a date ring and a disc making a step in twenty-four hours. Depending on whether the time-setting rod is turned in one direction or the other, either the indications given by the ring or the indications given by the disc are corrected. The mechanism used is a sliding gear which has a toothing and a three-tooth pinion. If the rod is actuated in one direction, the gear returns to a first position where the teeth are in engagement with the disc. If the rod is actuated in the opposite direction, the gear returns to a second position where the pinion is engaged with the ring. In such a construction, several mobiles are interposed between the control rod and the time indicator which must be corrected, which leads to a relatively complicated and expensive construction.

Le document CH-A-607 556 a pour but de supprimer de tels mobiles et de corriger directement un anneau de quantième à partir d'un pignon coulant coulissant sur la tige de mise à l'heure. Pour cela, le pignon coulant présente une gorge annulaire dans laquelle est monté à friction un ressort-fil entourant la gorge sur un peu plus des trois quarts de sa périphérie. Une extrémité libre du ressortfil dépasse radialement la périphérie du pignon coulant et sert directement de doigt d'entraînement pour avancer ou reculer l'anneau de quantième en tournant la tige respectivement dans un sens ou dans l'autre. Pour intéressante qu'elle soit, cette construction ne conduit pas à la solution que propose la présente invention, à savoir un dispositif de correction unidirectionnel, puisque le ressort-fil du document cité agit sur l'anneau de quantième dans les deux sens de correction. C'est un dispositif bidirectionnel.The document CH-A-607 556 aims to suppress such mobiles and to directly correct a date ring from a sliding pinion sliding on the time-setting rod. For this, the sliding pinion has an annular groove in which is frictionally mounted a wire spring surrounding the groove on a little more than three quarters of its periphery. A free end of the wire spring protrudes radially from the periphery of the sliding pinion and serves directly as a drive finger for advancing or reversing the date ring by turning the rod respectively in one direction or the other. However interesting it may be, this construction does not lead to the solution proposed by the present invention, namely a unidirectional correction device, since the spring of the cited document acts on the date ring in both directions of correction. It is a bidirectional device.

Le document CH-A-290 100 décrit un système de commande unidirectionnel pour le remontage d'un réveil. Sur l'axe de la tige de remontage sont montées, l'une à la suite de l'autre, deux douilles de même diamètre sur lesquelles est bobiné un ressort à boudin. L'une des douilles est solidaire de la tige alors que l'autre est libre sur la même tige. La douille libre est solidaire d'une roue dentée elle-même solidaire d'un ressort de barillet. Quand la tige est entraînée en rotation dans un sens, le ressort à boudin se resserre autour des deux douilles pour les coupler ensemble et remonter ainsi le ressort de barillet. Quand la tige est entraînée en rotation dans l'autre sens, le ressort à boudin se desserre et la douille libre n'est pas entraînée. Il s'agit cependant là d'un système de couplage où le ressort à boudin ne peut agir que s'il enserre deux éléments (deux douilles) placés l'un à côté de l'autre, ce qui n'a rien de commun avec la présente invention où le ressort à boudin n'enserre qu'un seul élément (un pignon coulant) et où ledit ressort présente une extrémité relevée qui entraîne un second élément (un disque de quantième).The document CH-A-290 100 describes a unidirectional control system for the reassembly of an alarm clock. On the axis of the winding rod are mounted, one after the other, two sockets of the same diameter on which a coil spring is wound. One of the sockets is integral with the rod while the other is free on the same rod. The free socket is integral with a toothed wheel itself integral with a barrel spring. When the rod is rotated in one direction, the coil spring tightens around the two sockets to couple them together and thus reassemble the barrel spring. When the rod is rotated in the other direction, the coil spring loosens and the free sleeve is not driven. However, this is a coupling system where the coil spring can only act if it encloses two elements (two sockets) placed one next to the other, which has nothing in common with the present invention where the coil spring encloses only one element (a sliding pinion) and where said spring has a raised end which drives a second element (a date disc).

L'intérêt d'un système de correction unidirectionnel peut être vu dans l'économie des moyens mis en oeuvre lorsqu'il s'agit de corriger toute une série d'indicateurs horaires, comme cela est évoqué dans le premier document cité ci-dessus: quand on tourne la tige dans un sens, on corrige les données d'un indicateur et quand on tourne la tige dans l'autre sens, on corrige les données d'un autre indicateur. Un autre intérêt peut être vu tout simplement par la simplification qu'il apporte au mécanisme d'entraînement horaire de l'indicateur en question. On sait par exemple que ce mécanisme d'entraînement peut poser des problèmes de bon fonctionnement si l'indicateur horaire peut être corrigé manuellement dans les deux sens.The advantage of a unidirectional correction system can be seen in the economy of the means used when it comes to correcting a whole series of hourly indicators, as mentioned in the first document cited above. : when we turn the rod in one direction, we correct the data of one indicator and when we turn the rod in the other direction, we correct the data of another indicator. Another advantage can be seen quite simply by the simplification which it brings to the hourly drive mechanism of the indicator in question. We know, for example, that this drive mechanism can cause problems with proper operation if the time indicator can be corrected manually in both directions.

Pour répondre à ces questions et pour éviter les inconvénients cités, le dispositif de correction unidirectionnel de la présente invention est caractérisé en ce qu'il comporte un élément cylindrique autour duquel est enroulé avec un léger serrage un ressort à boudin dont une des extrémités est relevée radialement pour servir de doigt susceptible d'entrer en contact avec une dent de l'élément circulaire et le faire tourner quand ledit élément cylindrique est entraîné en rotation dans un sens pour lequel la force exercée sur le doigt par la dent est dirigée dans une direction tendant à enrouler le ressort à boudin autour de l'élément cylindrique et à le serrer autour de lui, ledit élément circulaire restant immobile quand l'élément cylindrique est entraîné en rotation dans un sens pour lequel la force exercée sur le doigt par la dent est dirigée dans une direction tendant à ouvrir le ressort à boudin et à le libérer dudit élément cylindrique.To answer these questions and to avoid the cited drawbacks, the unidirectional correction device of the present invention is characterized in that it comprises a cylindrical element around which is wound with a slight tightening a coil spring, one end of which is raised. radially to serve finger capable of coming into contact with a tooth of the circular element and rotating it when said cylindrical element is rotated in a direction in which the force exerted on the finger by the tooth is directed in a direction tending to wind the coil spring around the cylindrical element and tightening it around it, said circular element remaining stationary when the cylindrical element is rotated in a direction for which the force exerted on the finger by the tooth is directed in a steering tending to open the coil spring and to release it from said cylindrical element.

L'invention sera expliquée maintenant à l'aide de la description qui suit, donnée à titre d'exemple, et en s'aidant du dessin qui l'illustre et dans lequel:

  • la figure 1 est une vue en plan du dispositif selon l'invention, tige et pignon coulant étant représentés en position de mise à l'heure des indicateurs d'heure et de minute, la tige étant disposée en seconde position tirée,
  • la figure 2 est une coupe selon la ligne II-II de la figure 1,
  • la figure 3 est une coupe selon la ligne II-II de la figure 1 en supposant la tige et le pignon coulant en position neutre, la tige se trouvant en position poussée,
  • la figure 4 est une coupe selon la ligne II-II de la figure 1 en supposant la tige et le pignon coulant en position de correction de l'indicateur de quantième, la tige se trouvant en première position tirée,
  • la figure 5 est une coupe selon la ligne V-V de la figure 4,
  • la figure 6 montre le déplacement du dispositif de la figure 5 dans le sens de la flèche A,
  • la figure 7 montre le déplacement du dispositif de la figure 5 dans le sens de la flèche B.
The invention will now be explained with the aid of the description which follows, given by way of example, and with the aid of the drawing which illustrates it and in which:
  • FIG. 1 is a plan view of the device according to the invention, rod and sliding pinion being represented in the time setting position of the hour and minute indicators, the rod being arranged in the second pulled position,
  • FIG. 2 is a section along line II-II of FIG. 1,
  • FIG. 3 is a section along line II-II of FIG. 1, assuming the rod and the pinion flowing in the neutral position, the rod being in the pushed position,
  • FIG. 4 is a section along line II-II of FIG. 1 assuming the rod and the sliding pinion in the position for correcting the date indicator, the rod being in the first drawn position,
  • FIG. 5 is a section along the line VV in FIG. 4,
  • FIG. 6 shows the movement of the device of FIG. 5 in the direction of the arrow A,
  • Figure 7 shows the movement of the device of Figure 5 in the direction of arrow B.

Les figures 1 et 4 montrent un dispositif de correction unidirectionnel 1 apte à corriger un organe d'affichage horaire présentant un élément circulaire 2 pourvu de dents 3. Selon l'invention, le dispositif de correction 1 comporte un élément cylindrique 4 autour duquel est enroulé avec un léger serrage, un ressort à boudin 5. Une des extrémités de ce ressort est relevée radialement pour servir de doigt de commande 6.Figures 1 and 4 show a unidirectional correction device 1 capable of correcting a time display member having a circular element 2 provided with teeth 3. According to the invention, the correction device 1 comprises a cylindrical element 4 around which is wound with a slight tightening, a coil spring 5. One end of this spring is raised radially to serve as a control finger 6.

Comme on le voit sur la figure 6, ce doigt 6 est susceptible d'entrer en contact avec une dent 3 de l'élément circulaire 2 et faire tourner cet élément dans le sens de la flèche E quand l'élément cylindrique 4 est entraîné en rotation dans le sens de la flèche A. En effet, la résistance présentée par la dent 3 à l'encontre du doigt 6 développe une force de réaction F1 qui tend à enrouler le ressort à boudin 5 autour de l'élément cylindrique 4 et à le serrer autour de lui. On peut dire que le ressort à boudin se vérouille autour de l'élément cylindrique dont il devient solidaire.As can be seen in FIG. 6, this finger 6 is capable of coming into contact with a tooth 3 of the circular element 2 and rotating this element in the direction of the arrow E when the cylindrical element 4 is driven in rotation in the direction of arrow A. Indeed, the resistance presented by tooth 3 against finger 6 develops a reaction force F1 which tends to wind the coil spring 5 around the cylindrical element 4 and hug him around him. We can say that the coil spring is locked around the cylindrical element of which it becomes integral.

Si l'on considère maintenant la figure 7 et qu'on actionne l'élément cylindrique 4 dans le sens de la flèche B, c'est-à-dire dans le sens opposé à celui considéré en figure 6, on voit que lorsque le doigt 6 appuie sur la dent 3, la force de réaction F2 développée sur le doigt 6 a tendance à ouvrir le ressort à boudin 5 et à le libérer de l'élément cylindrique 4, une telle situation étant symbolisée par l'espace 7 qu'on a dessiné entre l'élément 4 et le ressort à boudin 5. Le ressort 5 patine alors sur l'élément 4 et l'élément circulaire 2 reste immobile.If we now consider FIG. 7 and actuate the cylindrical element 4 in the direction of arrow B, that is to say in the opposite direction to that considered in FIG. 6, we see that when the finger 6 presses on tooth 3, the reaction force F2 developed on finger 6 tends to open the coil spring 5 and to release it from the cylindrical element 4, such a situation being symbolized by the space 7 that we drew between the element 4 and the coil spring 5. The spring 5 then slips on the element 4 and the circular element 2 remains stationary.

En conclusion de ce qui vient d'être dit, on a donc réalisé un système unidirectionnel de correction puisque l'indicateur horaire 2 est avancé si le dispositif 1 est tourné dans un sens, cet indicateur restant immobile si le dispositif est tourné dans le sens inverse. Le principe de l'invention est très général et peut être très simplement vérifié en introduisant sur une tige, un ressort à boudin dont le diamètre intérieur est très légèrement inférieur au diamètre de la tige et dont une des extrémités est relevée selon un rayon de la tige pour former un doigt de commande. Le dispositif peut être mis à profit dans une pièce d'horlogerie notamment pour la correction manuelle de divers indicateurs horaires. Il est clair cependant qu'il pourrait être utilisé partout où une commande unidirectionnelle est souhaitée.In conclusion of what has just been said, a unidirectional correction system has therefore been produced since the time indicator 2 is advanced if the device 1 is turned in one direction, this indicator remaining stationary if the device is turned in the direction reverse. The principle of the invention is very general and can be very simply verified by introducing a coil spring on a rod, the internal diameter of which is very slightly less than the diameter of the rod and one end of which is raised along a radius of the rod to form a control finger. The device can be used in a timepiece, in particular for manual correction of various time indicators. It is clear however that it could be used wherever a one-way control is desired.

On va maintenant donner un exemple d'application de l'invention à un dispositif de correction d'un anneau de quantième portant des indications de dates, lesquelles apparaissent à travers un guichet percé dans un cadran.We will now give an example of application of the invention to a device for correcting a date ring bearing date indications, which appear through a window pierced in a dial.

Si l'on se reporte aux figures 1 et 2, on s'aperçoit que l'élément cylindrique 4 autour duquel est enroulé le ressort à boudin 5, est porté par un pignon coulant 8, coopérant avec une tige de mise à l'heure 9. Le mouvement relatif de la tige 9 par rapport au pignon coulant 8 est assuré par un mécanisme connu par ailleurs, et comportant notamment une tirette 10 et une bascule 11. Le pignon coulant comprend une denture de chant 12 en prise ici avec un renvoi 13, ce dernier engrenant avec une roue de minuterie 14. La tige 9 est sortie au maximum et occupe une seconde position tirée qui permet la mise à l'heure des aiguilles d'heure et de minute de la pièce d'horlogerie. Le doigt 6 du ressort à boudin 5 n'est pas engagé dans la denture 3 de l'élément circulaire 2 qui est ici un anneau de quantième à denture intérieure bien connu de l'état de l'art.If we refer to Figures 1 and 2, we see that the cylindrical element 4 around which is wound the coil spring 5, is carried by a sliding pinion 8, cooperating with a time-setting rod 9. The relative movement of the rod 9 relative to the sliding pinion 8 is ensured by a mechanism known elsewhere, and comprising in particular a pull tab 10 and a rocker 11. The sliding pinion comprises a toothing 12 in engagement here with a reference 13, the latter meshing with a timer wheel 14. The rod 9 is extended as far as possible and occupies a second pulled position which allows the hour and minute hands of the timepiece to be set to the time. The finger 6 of the coil spring 5 is not engaged in the teeth 3 of the circular element 2 which is here a date ring with internal teeth well known from the state of the art.

La figure 4 montre une tige 9 occupant une première position tirée qui permet la correction de l'anneau de quantième 2. Pour cela le doigt 6 du ressort à boudin 5 est engagé dans la denture 3 de l'anneau. Cette situation est aussi représentée en figure 5 qui est une coupe selon la ligne V-V de la figure 4.Figure 4 shows a rod 9 occupying a first pulled position which allows the correction of the date ring 2. For this the finger 6 of the coil spring 5 is engaged in the teeth 3 of the ring. This situation is also represented in FIG. 5 which is a section along the line V-V in FIG. 4.

A partir de la situation montrée en figure 5, si l'on tourne le dispositif de correction 1 dans le sens de la flèche A, le dos 15 du doigt 6 viendra heurter la dent 3 sur son flanc 16 et entraînera ladite dent jusqu'à ce qu'elle atteigne la position illustrée en figure 6 et cela grâce au principe de serrage du ressort à boudin expliqué plus haut. A partir de ce moment l'anneau 2 n'aura pas encore progressé d'un pas entier mais, dans la construction adoptée ici, aura parcouru environ les trois quarts du chemin. Comme cela apparaît en figure 1 la dent 3 se sera déplacée en 3', le reste du parcours, de 3' à 3'' étant accompli grâce à la présence d'un sautoir 17.From the situation shown in FIG. 5, if the correction device 1 is turned in the direction of the arrow A, the back 15 of the finger 6 will strike the tooth 3 on its side 16 and will drive said tooth up to what it reaches the position illustrated in Figure 6 and this thanks to the principle of tightening the coil spring explained above. From this moment the ring 2 will not have yet progressed by a whole step but, in the construction adopted here, will have traversed approximately three quarters of the way. As shown in Figure 1 tooth 3 will have moved in 3 ', the rest of the route, from 3' to 3 '' being accomplished thanks to the presence of a jumper 17.

De même, à partir de la situation montrée en figure 5, si l'on tourne le dispositif 1 dans le sens de la flèche B, le front 18 du doigt 6 viendra heurter la dent 3 sur son flanc 19 comme cela est représenté en figure 7. Dans ce cas le ressort 5 s'ouvre et l'anneau reste immobile comme expliqué plus haut.Similarly, from the situation shown in Figure 5, if we turn the device 1 in the direction of arrow B, the front 18 of the finger 6 will strike the tooth 3 on its side 19 as shown in Figure 7. In this case the spring 5 opens and the ring remains stationary as explained above.

La figure 3 montre la tige 9 en position neutre, poussée. Ici aucune correction ne s'opère car le doigt 6 n'est pas engagé dans la denture 3 de l'anneau 2 et la denture 12 du pignon coulant 8 n'engrène pas avec le renvoi 13.Figure 3 shows the rod 9 in the neutral, pushed position. Here no correction is made because the finger 6 is not engaged in the toothing 3 of the ring 2 and the toothing 12 of the sliding pinion 8 does not mesh with the reference 13.

La figure 3 permettra d'expliquer aussi la façon dont est exécuté le pignon coulant 8. Celui-ci est réalisé en deux parties chassées l'une dans l'autre. La première partie comporte un moyeu 20 dans lequel coulisse un carré 21 terminant la tige 9. La première partie porte encore un flasque 22 préférablement fait d'une pièce avec le moyeu. La seconde partie comporte le pignon denté 24 proprement dit portant la denture de chant 12. Ce pignon est prolongé par un col 23 qui forme l'élément cylindrique 4, qui porte à son tour le ressort à boudin 5. La figure 3 montre que le diamètre extérieur du col 23 est plus petit que le diamètre du pignon denté 24 et du flasque 22 de sorte que le ressort à boudin 5 est maintenu en place axialement entre les deux parties formant le pignon coulant. Cette construction par chassage est surtout intéressante pour permettre le montage du ressort à boudin 5 qui est glissé sur le col 23 avant que les deux parties en question soient assemblées.FIG. 3 will also explain the way in which the sliding pinion 8 is executed. This is made in two parts driven one inside the other. The first part comprises a hub 20 in which slides a square 21 ending the rod 9. The first part also carries a flange 22 preferably made in one piece with the hub. The second part comprises the toothed pinion 24 proper carrying the edge teeth 12. This pinion is extended by a neck 23 which forms the cylindrical element 4, which in turn carries the coil spring 5. FIG. 3 shows that the outer diameter of the neck 23 is smaller than the diameter of the toothed pinion 24 and the flange 22 so that the coil spring 5 is held in place axially between the two parts forming the sliding pinion. This construction by driving is especially advantageous to allow the mounting of the coil spring 5 which is slid over the neck 23 before the two parts in question are assembled.

Selon une caractéristique de l'invention, le ressort à boudin 5 est enroulé avec un léger serrage autour de l'élément cylindrique 4. Ce serrage est obtenu en fournissant un ressort dont le diamètre intérieur est légèrement inférieur au diamètre de l'élément cylindrique. Dans la construction montrée en exemple à la figure 3, le diamètre extérieur du col 23 est de 3,6 mm alors que le diamètre du ressort à boudin 5 est de 3,5 mm avant montage sur le col.According to a characteristic of the invention, the coil spring 5 is wound with a slight tightening around the cylindrical element 4. This tightening is obtained by providing a spring whose internal diameter is slightly less than the diameter of the cylindrical element. In the construction shown as an example in FIG. 3, the outside diameter of the neck 23 is 3.6 mm while the diameter of the coil spring 5 is 3.5 mm before mounting on the neck.

On notera encore que le couple de verrouillage du ressort à boudin sur l'élément cylindrique dépend du nombre de spires composant le ressort et, dans une certaine mesure, du diamètre du fil utilisé pour confectionner le ressort. Un ressort réalisé avec du fil de 0,15 mm et comportant trois spires a donné d'excellents résultats.It will also be noted that the locking torque of the coil spring on the cylindrical element depends on the number of turns making up the spring and, to a certain extent, on the diameter of the wire used to make the spring. A spring made with 0.15 mm wire and comprising three turns gave excellent results.

Le dispositif de correction selon l'invention agissant de manière unidirectionnelle, il est possible de concevoir un dispositif double qui, pour une position tirée de la tige, corrige deux indicateurs horaires différents indiquant par exemple, l'un le quantième et l'autre le jour de la semaine et cela suivant le sens de rotation de la tige. Il suffit pour cela de disposer de deux ressorts à boudin, l'un enroulé dans un sens et corrigeant le quantième et l'autre enroulé dans l'autre sens et corrigeant le jour de la semaine.The correction device according to the invention acting in a unidirectional manner, it is possible to design a double device which, for a position taken from the rod, corrects two different time indicators indicating for example, one the date and the other the day of the week and this following the direction of rotation of the rod. It is enough to have two coil springs, one wound in one direction and correcting the date and the other wound in the opposite direction and correcting the day of the week.

Claims (7)

Dispositif de correction unidirectionnel (1) d'au moins un organe d'affichage horaire d'une pièce d'horlogerie, ledit organe d'affichage présentant un élément circulaire (2) pourvu de dents (3), caractérisé par le fait que ledit dispositif de correction comporte un élément cylindrique (4) autour duquel est enroulé avec un léger serrage un ressort à boudin (5) dont une des extrémités est relevée radialement pour servir de doigt (6) susceptible d'entrer en contact avec une dent de l'élément circulaire et le faire tourner quand ledit élément cylindrique est entraîné en rotation dans un sens (A) pour lequel la force (F1) exercée sur le doigt par la dent est dirigée dans une direction tendant à enrouler le ressort à boudin autour de l'élément cylindrique et à le serrer autour de lui, ledit élément circulaire restant immobile quand l'élément cylindrique est entraîné en rotation dans un sens (B) pour lequel la force (F2) exercée sur le doigt par la dent est dirigée dans une direction tendant à ouvrir le ressort à boudin et à le libérer dudit élément cylindrique.Unidirectional correction device (1) of at least one time display member of a timepiece, said display member having a circular element (2) provided with teeth (3), characterized in that said correction device comprises a cylindrical element (4) around which is wound with a slight tightening a coil spring (5) one end of which is raised radially to serve as a finger (6) capable of coming into contact with a tooth of the circular element and rotate it when said cylindrical element is rotated in a direction (A) for which the force (F1) exerted on the finger by the tooth is directed in a direction tending to wind the coil spring around the cylindrical element and tightening it around it, said circular element remaining stationary when the cylindrical element is rotated in a direction (B) for which the force (F2) exerted on the finger by the tooth is d irrigated in a direction tending to open the coil spring and to release it from said cylindrical element. Dispositif selon la revendication 1, caractérisé par le fait que l'élément cylindrique est porté par un pignon coulant (8) coopérant avec une tige de mise à l'heure (9), le mouvement relatif de la tige par rapport au pignon coulant étant assuré par un mécanisme comportant notamment une tirette (10) et une bascule (11).Device according to Claim 1, characterized in that the cylindrical element is carried by a sliding pinion (8) cooperating with a time-setting rod (9), the relative movement of the rod with respect to the sliding pinion provided by a mechanism comprising in particular a pull tab (10) and a rocker (11). Dispositif selon la revendication 2, caractérisé par le fait que la tige (9) peut être positionnée axialement au moins dans une position tirée par rapport à une position de repos poussée, la position tirée engageant le doigt (6) du ressort à boudin (5) dans la denture (3) de l'élément circulaire.Device according to claim 2, characterized in that the rod (9) can be positioned axially at least in a pulled position relative to a pushed rest position, the pulled position engaging the finger (6) of the coil spring (5 ) in the teeth (3) of the circular element. Dispositif selon la revendication 2, caractérisé par le fait que le pignon coulant (8) est réalisé en deux parties chassées l'une dans l'autre, la première partie comportant un moyeu (20) dans lequel coulisse la tige (9) et un flasque (22) fait d'une pièce avec le moyeu, la seconde partie comportant le pignon denté proprement dit (24) prolongé par un col (23) formant ledit élément cylindrique, le diamètre extérieur dudit col étant plus petit que le diamètre dudit pignon denté et dudit flasque pour permettre le montage dudit ressort à boudin (5) et le maintenir axialement en place quand lesdites deux parties sont chassées l'une dans l'autre.Device according to claim 2, characterized in that the sliding pinion (8) is produced in two parts driven one inside the other, the first part comprising a hub (20) in which the rod (9) slides and a flange (22) made in one piece with the hub, the second part comprising the toothed pinion proper (24) extended by a neck (23) forming said cylindrical element, the outside diameter of said neck being smaller than the diameter of said pinion toothed and said flange to allow mounting of said coil spring (5) and hold it axially in place when said two parts are driven into one another. Dispositif selon la revendication 1, caractérisé par le fait que l'élément circulaire (2) est un anneau pourvu d'une denture intérieure (3) sur laquelle agit ledit doigt (6), ledit anneau portant des indications de dates visibles à travers un guichet.Device according to claim 1, characterized in that the circular element (2) is a ring provided with internal toothing (3) on which said finger (6) acts, said ring bearing indications of dates visible through a counter. Dispositif selon la revendication 5, caractérisé par le fait qu'un sautoir (17) coopère avec ladite denture intérieure (3) pour achever la rotation de l'anneau (2) une fois que la dent sur laquelle agit le doigt n'est plus entraîné par ledit doigt.Device according to claim 5, characterized in that a jumper (17) cooperates with said internal toothing (3) to complete the rotation of the ring (2) once the tooth on which the finger acts is no longer driven by said finger. Dispositif selon la revendication 1, caractérisé par le fait que le ressort à boudin (5) compte au moins trois spires.Device according to claim 1, characterized in that the coil spring (5) has at least three turns.
EP92115127A 1991-09-11 1992-09-04 One-way correcting means for a time display device Expired - Lifetime EP0531895B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH2671/91A CH681191B5 (en) 1991-09-11 1991-09-11
CH2671/91 1991-09-11

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EP0531895A1 true EP0531895A1 (en) 1993-03-17
EP0531895B1 EP0531895B1 (en) 1995-04-12

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US (1) US5303213A (en)
EP (1) EP0531895B1 (en)
JP (1) JP3223332B2 (en)
CN (1) CN1033767C (en)
CH (1) CH681191B5 (en)
DE (1) DE69202030T2 (en)
HK (1) HK1007201A1 (en)
SG (1) SG71660A1 (en)
TW (1) TW202505B (en)

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* Cited by examiner, † Cited by third party
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DE60227640D1 (en) * 2002-04-09 2008-08-28 Girard Perregaux Sa Actuation mechanism for a clock
JP4462606B2 (en) * 2004-01-27 2010-05-12 セイコーインスツル株式会社 Clock with display correction mechanism
EP1978419B1 (en) * 2007-04-04 2010-07-21 ETA SA Manufacture Horlogère Suisse Winding device comprising a unidirectional coupling
ATE487962T1 (en) * 2007-04-04 2010-11-15 Eta Sa Mft Horlogere Suisse GEAR FOR A CLOCK MOVEMENT AND DEVICE FOR CORRECTING A DISPLAY MECHANISM FOR A WATCH HAVING SUCH A GEAR
EP2871534B1 (en) * 2013-11-06 2017-01-04 ETA SA Manufacture Horlogère Suisse Timepiece mobile with unidirectional wheels
EP3454137B1 (en) * 2017-09-07 2024-03-06 Montres Breguet S.A. Hand tool for actuating a push-button corrector provided in a watch
EP3489761B1 (en) * 2017-11-24 2020-05-06 Blancpain SA Timepiece mobile with unidirectional wheel
EP3832400B1 (en) * 2019-12-04 2022-06-22 ETA SA Manufacture Horlogère Suisse Device and method for measuring the play of a timepiece element

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2633950A (en) * 1949-09-21 1953-04-07 Gen Electric Spring type one-way drive
CH290100A (en) * 1950-03-13 1953-04-15 Narodni Podnik Chronotechna Locking and driving mechanism for driving alarm clocks, clockworks and similar spring-driven works.
DE6600930U (en) * 1966-07-22 1969-02-13 Wehrle Uhrenfabrik Gmbh SUPPORT OF VALVE SHAFT
FR2135362A1 (en) * 1971-05-05 1972-12-15 Ebauches Sa
CH607556GA3 (en) * 1974-11-06 1978-08-31 Bulova Watch Co Inc Device for rapid manual correction of the date indicator in a watch
FR2447053A1 (en) * 1979-01-17 1980-08-14 Vdo Schindling ADJUSTING DEVICE FOR AN AUTOMOTIVE WATCH WITH ANALOG DISPLAY
GB2095438A (en) * 1981-03-25 1982-09-29 Sefea Soc Europ De Fabrication Timepiece having an auxiliary indicating member for supplementary data

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH657007GA3 (en) * 1984-08-23 1986-08-15 Tissot Sa

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2633950A (en) * 1949-09-21 1953-04-07 Gen Electric Spring type one-way drive
CH290100A (en) * 1950-03-13 1953-04-15 Narodni Podnik Chronotechna Locking and driving mechanism for driving alarm clocks, clockworks and similar spring-driven works.
DE6600930U (en) * 1966-07-22 1969-02-13 Wehrle Uhrenfabrik Gmbh SUPPORT OF VALVE SHAFT
FR2135362A1 (en) * 1971-05-05 1972-12-15 Ebauches Sa
CH607556GA3 (en) * 1974-11-06 1978-08-31 Bulova Watch Co Inc Device for rapid manual correction of the date indicator in a watch
FR2447053A1 (en) * 1979-01-17 1980-08-14 Vdo Schindling ADJUSTING DEVICE FOR AN AUTOMOTIVE WATCH WITH ANALOG DISPLAY
GB2095438A (en) * 1981-03-25 1982-09-29 Sefea Soc Europ De Fabrication Timepiece having an auxiliary indicating member for supplementary data

Also Published As

Publication number Publication date
CH681191B5 (en) 1993-08-13
DE69202030T2 (en) 1995-11-30
JP3223332B2 (en) 2001-10-29
CN1033767C (en) 1997-01-08
JPH05203766A (en) 1993-08-10
US5303213A (en) 1994-04-12
EP0531895B1 (en) 1995-04-12
CH681191GA3 (en) 1993-02-15
DE69202030D1 (en) 1995-05-18
CN1070492A (en) 1993-03-31
SG71660A1 (en) 2000-04-18
TW202505B (en) 1993-03-21
HK1007201A1 (en) 1999-04-01

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