EP0363821A1 - Calendar watch with a central date display - Google Patents

Calendar watch with a central date display Download PDF

Info

Publication number
EP0363821A1
EP0363821A1 EP89118479A EP89118479A EP0363821A1 EP 0363821 A1 EP0363821 A1 EP 0363821A1 EP 89118479 A EP89118479 A EP 89118479A EP 89118479 A EP89118479 A EP 89118479A EP 0363821 A1 EP0363821 A1 EP 0363821A1
Authority
EP
European Patent Office
Prior art keywords
wheel
date
song
toothing
calendar watch
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
EP89118479A
Other languages
German (de)
French (fr)
Other versions
EP0363821B1 (en
Inventor
Cyril Vuilleumier
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.)
ETA SA Manufacture Horlogere Suisse
Ebauchesfabrik ETA AG
Original Assignee
Ebauchesfabrik ETA AG
Eta SA Fabriques dEbauches
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 Ebauchesfabrik ETA AG, Eta SA Fabriques dEbauches filed Critical Ebauchesfabrik ETA AG
Publication of EP0363821A1 publication Critical patent/EP0363821A1/en
Application granted granted Critical
Publication of EP0363821B1 publication Critical patent/EP0363821B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

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
    • G04B19/00—Indicating the time by visual means
    • G04B19/24—Clocks or watches with date or week-day indicators, i.e. calendar clocks or watches; Clockwork calendars
    • 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
    • G04B19/00—Indicating the time by visual means
    • G04B19/26—Clocks or watches with indicators for tides, for the phases of the moon, or the like
    • G04B19/268—Clocks or watches with indicators for tides, for the phases of the moon, or the like with indicators for the phases of the moon

Definitions

  • the present invention relates to a calendar watch comprising a movement making it possible to display at least the hour, the minute and a date by means of indicators evolving on a dial and rotating in the center of the movement, and a song wheel integral with the date indicator, the toothing of said wheel forming a circular crown disposed perpendicularly to a face of said wheel.
  • the arrangement described uses a mechanism arranged entirely above the dial, which has the disadvantage of considerably increasing the thickness of the watch.
  • This same arrangement also uses an elastic blade secured to the barrel of the hour wheel which, every twelve hours, is raised by a cleat secured to the dial to bring the free end of said blade into engagement with the teeth of the wheel. edge, which advances by one step said edge wheel which is integral with the date indicator.
  • This mechanism requires a significant torque when the indicator is driven, which is unwelcome for watches driven by a stepping motor, itself controlled by a battery. On the other hand we can fear a jamming of the song wheel on the barrel of the hour wheel at the time of the advance of the indicator.
  • the calendar watch of the present invention is also constructed from a date window mechanism where the date ring is removed and is somehow replaced by the teeth of a song wheel.
  • the watch is characterized by the fact that said toothing is periodically driven by a finger moving in a plane cutting the circular crown formed by the toothing in the direction of its height, said finger being integral with a date driving wheel having a parallel axis to the axis of said edge wheel and that a jumper is placed between two teeth adjacent to said toothing to position the date indicator when said indicator is at rest
  • FIG. 1 shows a calendar watch 1 with hour 2 and minute hands 3 and a date hand 4 moving opposite date marks 5 affixed to a dial 6.
  • Indicators 2, 3 , 4 rotate in the center of a movement placed under the dial.
  • FIG. 2 shows the hour hand 2 and the minute hand 3.
  • a second hand, not shown, can complete the display system.
  • FIG. 2 also shows a date indicator or hand 4 rotating at the center of the movement and driven by a mechanism which is the subject of the present invention.
  • the date indicator 4 is integral with a song wheel 9.
  • the toothing 11 of the song wheel 9 is periodically driven by a finger 14 which moves in a plane which cuts the crown 12 in the direction of the height of this crown.
  • the finger 14 remains confined inside the cup formed by the face 13 and the crown 12 of the wheel 9.
  • the finger 14 is integral with a date driving wheel 15, which has an axis 16 which is parallel to the axis 17 of the song wheel 9.
  • a date driving wheel 15 which has an axis 16 which is parallel to the axis 17 of the song wheel 9.
  • the song wheel 9 has 31 teeth 11. If the drive wheel 15 makes one revolution in 24 hours, it will be understood that the date indicator will indicate the date or, in other words , the serial number of each day in the month. However, the invention is not limited to indicating the date. It could be the days of the week, the month, the year, the phases of the moon or even the signs of the zodiac.
  • the calendar watch comprises a plate 20, which is only sketched in FIG. 2, this plate carries the mechanism of the watch and in particular the driving wheel 15 with its finger 14, and the hour wheel 7.
  • the hour wheel could directly drive the driving wheel.
  • a reference consisting of two integral and coaxial gears, referenced 21 and 22, is interposed between the barrel wheel 7 and the date driving wheel 15.
  • FIGS. 4 and 5 are respectively a section and a plan view in a different location than that illustrated in FIG. 2, a figure which was mainly intended to explain how the song wheel was driven.
  • Figure 4 shows the channel 23 which was used to accommodate a date ring in a watch.
  • the channel is formed in the plate 20 and is covered by the dial 6.
  • This channel penetrates the toothing 11 of the song wheel 9.
  • the toothing 11 is freely adjusted on the edge 24 of small diameter presented by said channel. This adjustment allows the centering and guiding of the edge wheel relative to the center of the movement.
  • Figure 5 which is a plan view along arrow V of Figure 4 (the dial is removed) shows the circular shape of the channel 23 and how the inner edge of the teeth 11 rests on the edge 24 of said channel.
  • the hour wheel 7 is provided with a first barrel 25 on which the hour hand 2 is fitted.
  • the barrel 25 rotates freely on the roadway 8 which carries the 'minute hand 3.
  • the wheel 7 and the roadway 8 are coupled together by means of a conventional timer not shown.
  • the song wheel 9 is located immediately under the dial 6 and is equipped with a second barrel 10 raised in its center, and on which the date indicator 4 is driven.
  • the figure shows that a clearance 26 is formed between the first and second guns. This play makes it possible to avoid any jamming between said barrels, especially when the song wheel is driven.
  • This game is made possible thanks to the fact that it is the teeth of the song wheel which is used to center the wheel, as mentioned above.
  • Figures 2 to 5 show that the song wheel 9 has a plurality of tabs 27 which extend beyond the peripheral ring 12 presented by the toothing 11.
  • Figures 2, 4 and 5 also show a cover 28 which covers the periphery of the plate 20 extending partially on the circular channel 23 to the inner edge 29 of said cap.
  • the cover will preferably be shaped in such a way that it clamps on the plate by its rim 30.
  • the figures show that the cover 28 forms with the channel 23 an annular housing in which the legs move 27 of the song wheel.
  • This construction makes it possible to fulfill several functions at the same time: the cover serves as a spacer between the plate and the dial, and the legs maintain the song wheel in height by preventing it from touching the dial. Finally, this arrangement makes it possible to offer a complete movement, even before the dial is placed, which facilitates handling.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Astronomy & Astrophysics (AREA)
  • Electromechanical Clocks (AREA)
  • Electric Clocks (AREA)

Abstract

A calendar watch includes a central date indicator (4). The indicator is united with a crown wheel (9) comprising teeth (11) forming a circular crown (12) arranged to be perpendicular to a face (13) of said wheel. The teeth (12) are driven by a finger (14) rotating in a plane intersecting said crown in its height. The finger is united with a date driving wheel (15). The invention permits easy transformation of a watch having its date display in a dial aperture to a watch having a date indicator rotating about the center of the movement.

Description

La présente invention est relative à une montre calendrier comportant un mouvement permettant d'afficher au moins l'heure, la minute et un quantième au moyen d'indicateurs évoluant sur un cadran et tournant au centre du mouvement, et une roue de chant solidaire de l'indicateur de quantième, la denture de ladite roue formant une couronne circulaire disposée perpendiculairement à une face de ladite roue.The present invention relates to a calendar watch comprising a movement making it possible to display at least the hour, the minute and a date by means of indicators evolving on a dial and rotating in the center of the movement, and a song wheel integral with the date indicator, the toothing of said wheel forming a circular crown disposed perpendicularly to a face of said wheel.

On a déjà proposé d'entraîner un indicateur de quantième au centre par une roue de chant grâce à laquelle on peut adjoindre une indication de la date à une montre ordinaire, sans devoir apporter d'importantes modifications au mouvement existant. Le document CH-A-332 898 montre une telle construction.It has already been proposed to drive a date indicator in the center by a song wheel thanks to which it is possible to add an indication of the date to an ordinary watch, without having to make significant modifications to the existing movement. Document CH-A-332 898 shows such a construction.

L'arrangement décrit fait appel à un mécanisme disposé entière­ment au-dessus du cadran, ce qui a pour inconvénient d'augmenter considérablement l'épaisseur de la montre. Ce même arrangement fait aussi appel à une lame élastique solidaire du canon de la roue des heures qui, toutes les douze heures, est soulevée par un taquet solidaire du cadran pour amener l'extrémité libre de ladite lame en prise avec la denture de la roue de chant, ce qui fait avancer d'un pas ladite roue de chant de laquelle est solidaire l'indicateur de quantième. Ce mécanisme exige un couple important au moment de l'entraînement de l'indicateur, ce qui est malvenu pour montre entraînée par un moteur pas à pas, lui-même commandé par une pile. D'autre part on peut craindre un coincement de la roue de chant sur le canon de la roue des heures au moment de l'avance de l'indica­teur.The arrangement described uses a mechanism arranged entirely above the dial, which has the disadvantage of considerably increasing the thickness of the watch. This same arrangement also uses an elastic blade secured to the barrel of the hour wheel which, every twelve hours, is raised by a cleat secured to the dial to bring the free end of said blade into engagement with the teeth of the wheel. edge, which advances by one step said edge wheel which is integral with the date indicator. This mechanism requires a significant torque when the indicator is driven, which is unwelcome for watches driven by a stepping motor, itself controlled by a battery. On the other hand we can fear a jamming of the song wheel on the barrel of the hour wheel at the time of the advance of the indicator.

Dans les montres calendrier modernes, le quantième est indiqué le plus souvent au moyen d'un anneau sur lequel sont inscrits les chiffres de 1 à 31 apparaissant dans un guichet pratiqué dans le cadran. Or, la demande est forte aujourd'hui qui réclame à nouveau l'affichage du quantième au moyen d'une aiguille centrale évoluant sur un tour d'heures présentant trente et une divisions comme cela était le cas des anciennes montres calendrier. On peut donc être tenté d'adapter un mécanisme prévu pour entraîner un anneau de quantième de telle façon qu'il puisse entraîner une aiguille centra­le et ceci en apportant au mécanisme un minimum de modification.In modern calendar watches, the date is most often indicated by means of a ring on which the numbers 1 to 31 appearing appearing in a window in the dial. However, demand is high today which again calls for the display of the date by means of a central hand evolving over a lap of hours with thirty-one divisions as was the case with the old calendar watches. So we can be attempted to adapt a mechanism designed to drive a date ring so that it can drive a central hand and this by making the mechanism a minimum of modification.

Une telle tentative est décrite dans le document CH-A-661 170. Dans ce document, l'aiguille indiquant les quantièmes en regard d'un tour de quantièmes fixe apparaissant à la périphérie du cadran, est portée par un canon d'un plateau coaxial au centre du mouvement, sur lequel est sertie une pièce de liaison présentant trois bras élasti­ques engagés à cran sur des têtes de plots portés par l'anneau de quantième.Such an attempt is described in document CH-A-661 170. In this document, the hand indicating the dates opposite a fixed date turn appearing at the periphery of the dial, is carried by a barrel of a plate coaxial in the center of the movement, on which is set a connecting piece having three elastic arms engaged to notch on the heads of studs carried by the date ring.

La construction qui vient d'être brièvement décrite maintient l'utilisation de l'anneau de quantième (par ailleurs entraîné de façon classique) ce qui nécessite, outre la fabrication de la pièce de liaison à trois bras, une préparation spéciale de l'anneau, ainsi que la fabrication de plots relativement compliqués pour relier cet anneau à la pièce de liaison. De plus, la présence même des plots mentionnés amène à une construction qui prend une certaine épais­seur, en plus de l'épaisseur nécessaire à l'évolution de la pièce de liaison qui est surajoutée.The construction which has just been briefly described maintains the use of the date ring (otherwise conventionally driven) which requires, in addition to the manufacture of the three-link connecting piece, special preparation of the ring , as well as the manufacture of relatively complicated studs to connect this ring to the connecting piece. In addition, the very presence of the studs mentioned leads to a construction which takes a certain thickness, in addition to the thickness necessary for the evolution of the connecting piece which is added.

La montre calendrier de la présente invention est également construite à partir d'un mécanisme de quantième à guichet où l'an­neau de quantième est supprimé et est remplacé en quelque sorte par la denture d'une roue de chant. La montre est caractérisée par le fait que ladite denture est entraînée périodiquement par un doigt évoluant dans un plan coupant la couronne circulaire formée par le denture dans le sens de sa hauteur, ledit doigt étant solidaire d'une roue entraîneuse de quantième présentant un axe parallèle à l'axe de ladite roue de chant et qu'un sautoir est disposé entre deux dents voisines de ladite denture pour positionner l'indicateur de quantième lorsque ledit indicateur est au reposThe calendar watch of the present invention is also constructed from a date window mechanism where the date ring is removed and is somehow replaced by the teeth of a song wheel. The watch is characterized by the fact that said toothing is periodically driven by a finger moving in a plane cutting the circular crown formed by the toothing in the direction of its height, said finger being integral with a date driving wheel having a parallel axis to the axis of said edge wheel and that a jumper is placed between two teeth adjacent to said toothing to position the date indicator when said indicator is at rest

Les avantages d'une telle construction apparaîtront à la lecture de la description qui suit, description illustrée à titre d'exemple par le dessin dans lequel :

  • - la figure 1 est une vue en plan d'une montre calendrier avec indicateur de quantième central,
  • - la figure 2 est une coupe partielle dans la montre calen­drier selon l'invention où apparaît l'indicateur de quantième et son mécanisme d'entraînement, coupe pratiquée selon la ligne II-II de la figure 3,
  • - la figure 3 est une vue en plan partielle selon la flèche III de la figure 2.
  • - la figure 4 est une coupe partielle de la montre calendrier selon l'invention, coupe pratiquée à un endroit différent que celui illustré en figure 2 et selon la ligne IV-IV de la figure 5, et
  • - la figure 5 est une vue en plan partielle selon la flèche V de la figure 4.
The advantages of such a construction will appear on reading the following description, description illustrated by way of example by the drawing in which:
  • FIG. 1 is a plan view of a calendar watch with a central date indicator,
  • - Figure 2 is a partial section in the calendar watch according to the invention where the date indicator and its drive mechanism, cut made along line II-II of FIG. 3,
  • FIG. 3 is a partial plan view along arrow III in FIG. 2.
  • FIG. 4 is a partial section of the calendar watch according to the invention, section made at a different location than that illustrated in FIG. 2 and along the line IV-IV of FIG. 5, and
  • FIG. 5 is a partial plan view according to arrow V in FIG. 4.

La vue en plan de la figure 1 présente une montre calendrier 1 avec des aiguilles d'heures 2 et de minutes 3 et une aiguille de quantième 4 se déplaçant en regard de repères de quantième 5 apposés sur un cadran 6. Les indicateurs 2, 3, 4 tournent au centre d'un mouvement placé sous le cadran.The plan view of FIG. 1 shows a calendar watch 1 with hour 2 and minute hands 3 and a date hand 4 moving opposite date marks 5 affixed to a dial 6. Indicators 2, 3 , 4 rotate in the center of a movement placed under the dial.

La coupe de la figure 2 montre l'aiguille des heures 2 et l'aiguille des minutes 3. Une aiguille des secondes, non représen­tée, peut compléter le système d'affichage. La figure 2 montre encore un indicateur ou aiguille de quantième 4 tournant au centre du mouvement et entraînée par un mécanisme qui fait l'objet de la présente invention.The section of Figure 2 shows the hour hand 2 and the minute hand 3. A second hand, not shown, can complete the display system. FIG. 2 also shows a date indicator or hand 4 rotating at the center of the movement and driven by a mechanism which is the subject of the present invention.

L'indicateur de quantième 4 est solidaire d'une roue de chant 9. La roue de chant 9, qui est vue en plan sur la figure 3 selon la flèche III de la figure 2, comporte une denture 11 qui forme une couronne circulaire 12, ladite couronne étant disposée perpendicu­lairement à la face 13 de la roue de chant 9.The date indicator 4 is integral with a song wheel 9. The song wheel 9, which is seen in plan in FIG. 3 according to arrow III in FIG. 2, has a toothing 11 which forms a circular crown 12 , said crown being arranged perpendicular to the face 13 of the song wheel 9.

Comme on le voit aux figures 2 et 3 et selon une caractéristique importante de l'invention, la denture 11 de la roue de chant 9 est entraînée périodiquement par un doigt 14 qui évolue dans un plan qui coupe la couronne 12 dans le sens de la hauteur de cette couronne. Ainsi, comme cela apparaît clairement à la figure 2, le doigt 14 reste confiné à l'intérieur de la cuvette formée par la face 13 et la couronne 12 de la roue 9.As can be seen in FIGS. 2 and 3 and according to an important characteristic of the invention, the toothing 11 of the song wheel 9 is periodically driven by a finger 14 which moves in a plane which cuts the crown 12 in the direction of the height of this crown. Thus, as is clearly shown in FIG. 2, the finger 14 remains confined inside the cup formed by the face 13 and the crown 12 of the wheel 9.

Le doigt 14 est solidaire d'une roue entraîneuse de quantième 15, laquelle présente un axe 16 qui est parallèle à l'axe 17 de la roue de chant 9. Ainsi quand le doigt 14 entraîne une dent 11 dans le sens de la flèche 18, la roue de chant 9 et avec elle l'indica­teur 4, sont entraînés d'un pas dans le même sens, l'angle de déplacement correspondant à 360° divisé par le nombre de dents que comporte la roue de chant. Un sautoir 19, appuyé au repos sur deux dents successives, impose à la roue des positions équidistantes de repos.The finger 14 is integral with a date driving wheel 15, which has an axis 16 which is parallel to the axis 17 of the song wheel 9. Thus when the finger 14 drives a tooth 11 in the direction of the arrow 18 , the edge wheel 9 and with it the indicator 4, are driven by a step in the same direction, the angle of displacement corresponding to 360 ° divided by the number of teeth that the edge wheel comprises. A jumper 19, supported at rest on two successive teeth, imposes equidistant positions of rest on the wheel.

Dans l'exemple donné à la figure 3, la roue de chant 9 comporte 31 dents 11. Si la roue entraîneuse 15 fait un tour en 24 heures, on comprendra que l'indicateur de quantième indiquera la date ou, en d'autres termes, le numéro d'ordre de chaque jour dans le mois. Cependant l'invention n'est pas limitée à l'indication de la date. Ce pourrait être les jours de la semaine, le mois, l'année, les phases de la lune ou encore les signes du zodiaque.In the example given in FIG. 3, the song wheel 9 has 31 teeth 11. If the drive wheel 15 makes one revolution in 24 hours, it will be understood that the date indicator will indicate the date or, in other words , the serial number of each day in the month. However, the invention is not limited to indicating the date. It could be the days of the week, the month, the year, the phases of the moon or even the signs of the zodiac.

Dans le cas où la montre calendrier comporte une platine 20, qui n'est qu'esquissée en figure 2, cette platine porte le mécanisme de la montre et notamment la roue entraîneuse 15 avec son doigt 14, et la roue des heures 7. La roue des heures pourrait entraîner directe­ment la roue entraîneuse. Dans l'exemple montré en figures 2 et 3 cependant, un renvoi composé de deux engrenages solidaires et coaxiaux, référencés 21 et 22, est interposé entre la roue à canon 7 et la roue entraîneuse de quantième 15.In the case where the calendar watch comprises a plate 20, which is only sketched in FIG. 2, this plate carries the mechanism of the watch and in particular the driving wheel 15 with its finger 14, and the hour wheel 7. The hour wheel could directly drive the driving wheel. In the example shown in FIGS. 2 and 3, however, a reference consisting of two integral and coaxial gears, referenced 21 and 22, is interposed between the barrel wheel 7 and the date driving wheel 15.

Dans les montres calendrier à quantième apparaissant dans un guichet, l'anneau de quantième est logé dans un canal circulaire pratiqué à la périphérie de la platine. Dans le mode d'exécution de la présente invention, le canal est maintenu mais l'anneau de quantième est supprimé. Cela apparaît mieux aux figures 4 et 5 qui sont respectivement une coupe et une vue en plan à un endroit différent que celui illustré à la figure 2, figure qui avait surtout pour but d'expliquer comment la roue de chant était entraînée.In calendar calendar watches appearing in a window, the date ring is housed in a circular channel made at the periphery of the plate. In the embodiment of the present invention, the channel is maintained but the date ring is deleted. This appears better in FIGS. 4 and 5 which are respectively a section and a plan view in a different location than that illustrated in FIG. 2, a figure which was mainly intended to explain how the song wheel was driven.

La figure 4 montre le canal 23 qui servait à loger un anneau de quantième dans une montre à guichet. Le canal est pratiqué dans la platine 20 et est recouvert par le cadran 6. Dans ce canal pénètre la denture 11 de la roue de chant 9. La denture 11 est ajustée librement sur le bord 24 de petit diamètre présenté par ledit canal. Cet ajustement permet le centrage et le guidage de la roue de chant par rapport au centre du mouvement. La figure 5 qui est une vue en plan selon la flèche V de la figure 4 (le cadran est enlevé) montre bien l'allure circulaire du canal 23 et comment le bord intérieur des dents 11 repose sur le bord 24 dudit canal.Figure 4 shows the channel 23 which was used to accommodate a date ring in a watch. The channel is formed in the plate 20 and is covered by the dial 6. In this channel penetrates the toothing 11 of the song wheel 9. The toothing 11 is freely adjusted on the edge 24 of small diameter presented by said channel. This adjustment allows the centering and guiding of the edge wheel relative to the center of the movement. Figure 5 which is a plan view along arrow V of Figure 4 (the dial is removed) shows the circular shape of the channel 23 and how the inner edge of the teeth 11 rests on the edge 24 of said channel.

Si l'on revient maintenant à la figure 2, on voit que la roue des heures 7 est munie d'un premier canon 25 sur lequel est emman­chée l'aiguille des heures 2. Le canon 25 tourne librement sur la chaussée 8 qui porte l'aiguille des minutes 3. La roue 7 et la chaussée 8 sont couplées ensemble au moyen d'une minuterie classique non représentée. La roue de chant 9 est située immédiatement sous le cadran 6 et est équipée d'un second canon 10 levé en son centre, et sur lequel est chassé l'indicateur de quantième 4. La figure montre qu'un jeu 26 est ménagé entre les premier et second canons. Ce jeu permet d'éviter tout coincement entre lesdits canons, surtout au moment où la roue de chant est entraînée. Ce jeu est rendu possible grâce au fait que c'est la denture de la roue de chant qui sert à centrer la roue, comme on l'a dit ci-dessus.Returning now to FIG. 2, it can be seen that the hour wheel 7 is provided with a first barrel 25 on which the hour hand 2 is fitted. The barrel 25 rotates freely on the roadway 8 which carries the 'minute hand 3. The wheel 7 and the roadway 8 are coupled together by means of a conventional timer not shown. The song wheel 9 is located immediately under the dial 6 and is equipped with a second barrel 10 raised in its center, and on which the date indicator 4 is driven. The figure shows that a clearance 26 is formed between the first and second guns. This play makes it possible to avoid any jamming between said barrels, especially when the song wheel is driven. This game is made possible thanks to the fact that it is the teeth of the song wheel which is used to center the wheel, as mentioned above.

Ainsi, d'après la description qui vient d'être faite de l'inven­tion, il est très aisé de transformer un mouvement présentant un quantième à guichet en un mouvement présentant un quantième à aiguille au centre. Après avoir débarassé le mouvement de l'anneau de quantième, on pose la roue de chant sur la roue à canon des heures, puis on remet en place le cadran en disposant, entre le cadran et la platine, une entretoise dont la hauteur sera légère­ment supérieure à l'épaisseur de la roue de chant. A remarquer que la roue entraîneuse de quantième avec son doigt n'ont pas à être modifiés si la denture de la roue de chant tombe au même endroit que la denture de l'anneau quantième. On s'arrangera aussi pour que la forme de cette denture soit la même.Thus, according to the description which has just been made of the invention, it is very easy to transform a movement having a date window at one into a movement presenting a date with needle in the center. After removing the movement from the date ring, the song wheel is placed on the hour wheel, then the dial is replaced by placing a spacer between the dial and the plate, the height of which will be slightly greater than the thickness of the edge wheel. Note that the date driving wheel with his finger need not be modified if the teeth of the song wheel fall in the same place as the teeth of the date ring. We will also arrange for the shape of this toothing to be the same.

Reste à décrire une caractéristique non essentielle à l'inven­tion, mais qui tend cependant à l'améliorer encore.It remains to describe a characteristic which is not essential to the invention, but which nevertheless tends to improve it further.

Les figures 2 à 5 montrent que la roue de chant 9 comporte une pluralité de pattes 27 qui s'étendent au-delà de la couronne péri­phérique 12 présentée par la denture 11. Les figures 2, 4 et 5 montrent aussi un couvercle 28 qui coiffe la périphérie de la platine 20 en s'étendant partiellement sur le canal circulaire 23 jusqu'au bord intérieur 29 de ladite coiffe. Le couvercle sera préférablement façonné de telle façon qu'il serre sur la platine par son rebord 30. Les figures montrent que le couvercle 28 forme avec le canal 23 un logement annulaire dans lequel se meuvent les pattes 27 de la roue de chant. Cette construction permet de remplir plu­sieurs fonctions à la fois : le couvercle sert d'entretoise entre la platine et le cadran, et les pattes maintiennent la roue de chant en hauteur en évitant qu'elle ne vienne toucher le cadran. Enfin, cette disposition permet d'offrir un mouvement complet, avant même que le cadran ne soit posé, ce qui facilite la manutention.Figures 2 to 5 show that the song wheel 9 has a plurality of tabs 27 which extend beyond the peripheral ring 12 presented by the toothing 11. Figures 2, 4 and 5 also show a cover 28 which covers the periphery of the plate 20 extending partially on the circular channel 23 to the inner edge 29 of said cap. The cover will preferably be shaped in such a way that it clamps on the plate by its rim 30. The figures show that the cover 28 forms with the channel 23 an annular housing in which the legs move 27 of the song wheel. This construction makes it possible to fulfill several functions at the same time: the cover serves as a spacer between the plate and the dial, and the legs maintain the song wheel in height by preventing it from touching the dial. Finally, this arrangement makes it possible to offer a complete movement, even before the dial is placed, which facilitates handling.

La description qui vient d'être faite se base sur une montre calendrier pourvue d'une platine présentant elle-même un canal circulaire dans lequel on a disposé la denture d'une roue de chant à la place d'un anneau de quantième. On connait cependant des montres dépourvues de platine mais équipées d'un quantième avec anneau. On comprendra que la présente invention s'applique également à ces montres par analogie.The description which has just been made is based on a calendar watch provided with a plate itself having a circular channel in which the teeth of a song wheel have been placed in place of a date ring. However, we know watches without platinum but equipped with a date with ring. It will be understood that the present invention also applies to these watches by analogy.

Claims (5)

1. Montre calendrier (1) comportant un mouvement permettant d'afficher au moins l'heure, la minute et un quantième au moyen d'indicateurs (2, 3, 4) évoluant sur un cadran (6) et tournant au centre du mouvement, et une roue de chant (9) solidaire de l'indi­cateur de quantième, la denture (11) de ladite roue formant une couronne circulaire (12) disposée perpendiculairement à une face (13) de ladite roue, caractérisée par le fait que ladite denture est entraînée périodiquement par un doigt (14) évoluant dans un plan coupant ladite couronne dans le sens de sa hauteur, ledit doigt étant solidaire d'une roue entraîneuse de quantième (15) présentant un axe (16) parallèle à l'axe (17) de ladite roue de chant et qu'un sautoir (19) est disposé entre deux dents voisines de ladite denture pour positionner l'indicateur de quantième lorsque ledit indicateur est au repos.1. Calendar watch (1) comprising a movement making it possible to display at least the hour, the minute and a date by means of indicators (2, 3, 4) evolving on a dial (6) and rotating in the center of the movement , and a song wheel (9) integral with the date indicator, the toothing (11) of said wheel forming a circular crown (12) disposed perpendicularly to a face (13) of said wheel, characterized in that said toothing is periodically driven by a finger (14) moving in a plane cutting said crown in the direction of its height, said finger being integral with a date driving wheel (15) having an axis (16) parallel to the axis ( 17) of said song wheel and that a jumper (19) is disposed between two teeth adjacent to said toothing to position the date indicator when said indicator is at rest. 2. Montre calendrier selon la revendication 1, caractérisée par le fait que la roue de chant (9) comporte 31 dents et que la roue entraîneuse de quantième (15) fait un tour en 24 heures.2. Calendar watch according to claim 1, characterized in that the song wheel (9) has 31 teeth and that the date driving wheel (15) makes one revolution in 24 hours. 3. Montre calendrier selon la revendication 1, caractérisée par le fait que le mouvement comporte une platine (20), un canal circu­laire (23) pratiqué à la périphérie de la platine et dans lequel pénètre la denture (11) de la roue de chant, ladite denture étant ajustée librement sur le bord (24) de petit diamètre dudit canal pour centrer et guider la roue de chant par rapport au centre du mouvement et que la platine porte un mécanisme comprenant entre autres une roue des heures (7) portant un premier canon (25) sur lequel est emmanchée une aiguille des heures (2), ladite roue de chant étant située immédiatement sous le cadran et étant pourvue en son centre d'un second canon (10) tournant avec jeu (26) autour dudit premier canon, une aiguille de quantième (4) étant emmanchée sur ledit second canon.3. Calendar watch according to claim 1, characterized in that the movement comprises a plate (20), a circular channel (23) formed at the periphery of the plate and into which the toothing (11) of the song wheel penetrates. , said toothing being freely adjusted on the edge (24) of small diameter of said channel to center and guide the song wheel relative to the center of the movement and the plate carries a mechanism comprising inter alia an hour wheel (7) carrying a first barrel (25) on which an hour hand (2) is fitted, said song wheel being located immediately under the dial and being provided in its center with a second barrel (10) rotating with clearance (26) around said first barrel, a date hand (4) being fitted on said second barrel. 4. Montre calendrier selon la revendication 3, caractérisée par le fait que la roue de chant (9) comporte une pluralité de pattes (27) s'étendant au-delà de ladite couronne périphérique (12) et qu'un couvercle (28) coiffe la périphérie de la platine en s'éten­dant partiellement sur ledit canal circulaire pour former un logement annulaire dans lequel se meuvent lesdites pattes pour maintenir en hauteur ladite roue de chant.4. Calendar watch according to claim 3, characterized in that the song wheel (9) has a plurality of lugs (27) extending beyond said peripheral ring (12) and that a cover (28) covers the periphery of the plate, extending partially over said circular channel to form a annular housing in which move said legs to maintain said song wheel in height. 5. Montre calendrier selon la revendication 3, caractérisée par le fait que la roue entraîneuse de quantième (15) est entraînée par la roue des heures (7) par l'intermédiaire d'un renvoi (21, 22).5. Calendar watch according to claim 3, characterized in that the date driving wheel (15) is driven by the hour wheel (7) by means of a reference (21, 22).
EP89118479A 1988-10-10 1989-10-05 Calendar watch with a central date display Expired - Lifetime EP0363821B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH3771/88 1988-10-10
CH3771/88A CH673371B5 (en) 1988-10-10 1988-10-10

Publications (2)

Publication Number Publication Date
EP0363821A1 true EP0363821A1 (en) 1990-04-18
EP0363821B1 EP0363821B1 (en) 1992-06-17

Family

ID=4263137

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89118479A Expired - Lifetime EP0363821B1 (en) 1988-10-10 1989-10-05 Calendar watch with a central date display

Country Status (6)

Country Link
US (1) US4974242A (en)
EP (1) EP0363821B1 (en)
JP (1) JP2852769B2 (en)
CH (1) CH673371B5 (en)
DE (1) DE68901844T2 (en)
HK (1) HK191796A (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0312186U (en) * 1989-06-22 1991-02-07
CH681128B5 (en) * 1990-10-02 1993-07-30 Ebauchesfabrik Eta Ag
CH686106B5 (en) * 1993-03-23 1996-07-15 Ebauchesfabrik Eta Ag Chronograph watch with date indicator.
CH684815B5 (en) * 1993-07-15 1995-07-14 Longines Montres Comp D Mechanism annual calendar timepiece.
SG96702A1 (en) * 2001-11-13 2003-06-16 Glashuetter Uhrenbetrieb Gmbh Device for winding and setting the time of a timepiece such as a date-watch including a date disc
US8842499B2 (en) * 2011-11-18 2014-09-23 DS Zodiac, Inc. Devices for quantifying the passage of time
US20130128705A1 (en) * 2011-11-18 2013-05-23 John David Jones Devices for quantifying the passage of time
US9740172B2 (en) 2015-01-30 2017-08-22 Seiko Epson Corporation Timepiece
CH715809A1 (en) * 2019-02-01 2020-08-14 Mft D'horlogerie Audemars Piguet Sa Timepiece comprising a variable pitch display.

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH31566A (en) * 1904-06-11 1905-04-15 Fritz Blumer Device to facilitate the detection of broken chain threads for looms with chain guard sinkers
GB168382A (en) * 1920-05-27 1921-08-29 James Johnson Improvements in calendar clocks
FR1031926A (en) * 1950-02-16 1953-06-29 Rolex Montres Calendar timepiece
EP0165455A1 (en) * 1984-05-18 1985-12-27 Omega SA Calendar time piece

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH315A (en) * 1889-01-07 1889-03-08 Arnold Korff Device for automatic, electrical disengagement, respectively. Notification of thread breaks on warping machines, resp. Hand shear frame
CH35166A (en) * 1905-12-16 1906-07-15 Emil Mueller Magazine holder with billboard
JPS484926Y1 (en) * 1969-07-23 1973-02-07
US3628322A (en) * 1970-04-30 1971-12-21 Samuel E Mcduffee Biblical timepiece
CH573137B5 (en) * 1973-06-05 1976-02-27 Ebauchesfabrik Eta Ag
US3859783A (en) * 1974-04-08 1975-01-14 Timex Corp Day-date calendar mechanism
US4443112A (en) * 1982-09-29 1984-04-17 Timex Corporation Planetary gear for date mechanism in a wristwatch
JPS63115781U (en) * 1987-01-22 1988-07-26

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH31566A (en) * 1904-06-11 1905-04-15 Fritz Blumer Device to facilitate the detection of broken chain threads for looms with chain guard sinkers
GB168382A (en) * 1920-05-27 1921-08-29 James Johnson Improvements in calendar clocks
FR1031926A (en) * 1950-02-16 1953-06-29 Rolex Montres Calendar timepiece
EP0165455A1 (en) * 1984-05-18 1985-12-27 Omega SA Calendar time piece

Also Published As

Publication number Publication date
JP2852769B2 (en) 1999-02-03
CH673371GA3 (en) 1990-03-15
DE68901844D1 (en) 1992-07-23
HK191796A (en) 1996-10-25
JPH02156188A (en) 1990-06-15
CH673371B5 (en) 1990-09-14
DE68901844T2 (en) 1993-01-14
EP0363821B1 (en) 1992-06-17
US4974242A (en) 1990-11-27

Similar Documents

Publication Publication Date Title
EP0634711B1 (en) Annual calendar mechanism for timepieces
CH684618B5 (en) Timepiece for simultaneous display of the time for at least two time zones.
EP1916575A1 (en) Annual calendar mechanism for timepiece
EP0363821B1 (en) Calendar watch with a central date display
EP0756217A1 (en) Annual calendar mechanism for timepieces
CH695798A5 (en) An analog display timepiece.
EP1666991B1 (en) Annual calendar mechanism for a timepiece
EP1978420B1 (en) Gear wheel for a timepiece and device for correction of a display mechanism for a timepiece incorporating such a wheel
EP0218926B1 (en) Intermittent driving device for a time piece
EP1536300B1 (en) Calendar mechanism for a watch comprising two superposed date annuli
EP0135823A1 (en) Perpetual calender comprising a quadrennial cycle indicator
EP0029204B1 (en) Mechanism for positioning a centre wheel
EP3776095A1 (en) Annual calendar mechanism
EP2477080B1 (en) Timepiece showing the time zone corresponding to a selected time
EP4113218A1 (en) Mechanism for combined display of a lunar calendar and the phases of the moon for a timepiece movement
CH367760A (en) Calendar watch
CH689601A5 (en) Day of the month mechanism for timepiece
CH708166A2 (en) Process and display mechanism of the week number in the year.
EP1251412A1 (en) Calendar mechanism
WO2006108878A1 (en) Jumping hour display mechanism for timepiece
EP2156250B1 (en) Device for correction of a display mechanism for a timepiece
EP1353244B1 (en) Timepiece with oblong shaped case
CH660440GA3 (en) Perpetual calendar mechanism
CH718804B1 (en) Perpetual or annual calendar mechanism.
CH715471B1 (en) Clockwork mechanism for calendar, in particular for perpetual calendar.

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): DE FR GB

17P Request for examination filed

Effective date: 19900502

17Q First examination report despatched

Effective date: 19910621

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): DE FR GB

REF Corresponds to:

Ref document number: 68901844

Country of ref document: DE

Date of ref document: 19920723

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)
PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
REG Reference to a national code

Ref country code: GB

Ref legal event code: IF02

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20030929

Year of fee payment: 15

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20041005

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20041005

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20050831

Year of fee payment: 17

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20051004

Year of fee payment: 17

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20070501

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

Effective date: 20070629

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20061031