EP0579093A1 - Universal watch - Google Patents

Universal watch Download PDF

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Publication number
EP0579093A1
EP0579093A1 EP93110831A EP93110831A EP0579093A1 EP 0579093 A1 EP0579093 A1 EP 0579093A1 EP 93110831 A EP93110831 A EP 93110831A EP 93110831 A EP93110831 A EP 93110831A EP 0579093 A1 EP0579093 A1 EP 0579093A1
Authority
EP
European Patent Office
Prior art keywords
wheel
hour
display
rotary ring
correction
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
EP93110831A
Other languages
German (de)
French (fr)
Other versions
EP0579093B1 (en
Inventor
Frank Vaucher
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Compagnie des Montres Longines Francillon SA
Original Assignee
Compagnie des Montres Longines Francillon SA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Compagnie des Montres Longines Francillon SA filed Critical Compagnie des Montres Longines Francillon SA
Publication of EP0579093A1 publication Critical patent/EP0579093A1/en
Application granted granted Critical
Publication of EP0579093B1 publication Critical patent/EP0579093B1/en
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Classifications

    • G—PHYSICS
    • G04—HOROLOGY
    • G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
    • 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
    • G04B19/243—Clocks or watches with date or week-day indicators, i.e. calendar clocks or watches; Clockwork calendars characterised by the shape of the date indicator
    • G04B19/247—Clocks or watches with date or week-day indicators, i.e. calendar clocks or watches; Clockwork calendars characterised by the shape of the date indicator disc-shaped
    • G04B19/25—Devices for setting the date indicators manually
    • 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
    • G04B19/22—Arrangements for indicating different local apparent times; Universal time pieces
    • G04B19/221—Arrangements for indicating different local apparent times; Universal time pieces mechanisms for correcting the hours hand only, i.e. independently for minutes and seconds hands
    • 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
    • G04B19/22—Arrangements for indicating different local apparent times; Universal time pieces
    • G04B19/223—Arrangements for indicating different local apparent times; Universal time pieces with rotary disc, rotary bezel, or rotary dial

Definitions

  • the present invention relates to a timepiece providing a universal display of the time, that is to say capable of giving the current time of the different time zones, in particular in combination with the local time instead of the wearer.
  • the parts of this type generally comprise, inside a box housing a classic horometric movement, a rotating crown or ring which performs a complete rotation in twenty-four hours and which is kinematically linked to an hour wheel driven by the movement.
  • This rotary ring comprises, in a particular embodiment, a twenty-four hour hour turn, while a bezel, on which are registered geographical indications corresponding to the various time zones and which in this example is controlled by the rod , is mounted externally in rotation on the box.
  • This piece has many drawbacks.
  • this maneuver can cause a false display of the universal time, if, by turning the bezel the user is mistaken in the angular positioning of the geographical indications.
  • the present invention aims to provide a timepiece with universal time display which is of simple design and in which the current displayed time can be changed without influence on the universal time.
  • the present invention also aims to provide a timepiece of the aforementioned type, provided with a date display.
  • the timepiece P comprises a box B on which are conventionally provided CN horns (a only being referenced) allowing the subjugation of a conventional bracelet (not referenced).
  • the part P comprises, in this example, two display hands, namely a 2 minute hand and a 4 hour hand, both evolving opposite a dial CA to provide analog time information, generally corresponding to the local time of the location of the bearer of the piece P.
  • the part P includes a first display means 3, called the twenty-four hour display means, comprising a twenty-four hour clock (same reference) represented here conventionally by a group of Arabic numerals 1 to 24.
  • the room P also comprises a second display means 5 which includes geographical indications (here names of cities) relating respectively to the various time zones.
  • the minute hand 2, the hour hand 4 and, in the embodiment shown, the first display means 3 are kinematically linked to a conventional horometric movement M (FIGS. 2 and 6 to 8) housed in the box B.
  • the hour hand 4 performs, in this example and in a conventional manner, one revolution in twelve hours, while the display means 3 makes one revolution every twenty-four hours, counterclockwise.
  • the display means 5 comprising the geographical indications are, in this embodiment, advantageously arranged on the part P, preferably fixedly, for example on the box B or on a glass, not shown.
  • the display means 3 and 5 provide, in combination and in a conventional manner, the time in different places of the globe on the twenty-four time zones, this time being called universal time.
  • a correction mechanism MC will be described below making it possible to correct the position of the hour hand 4, without disrupt the time information provided by the display means 3 and 5.
  • the correction mechanism MC comprises a first barrel 4a, called the inner barrel, intended to be conventionally mounted for rotation about an axis of rotation X, on a carriageway C controlled by the horometric movement M , both shown schematically in broken lines broken in Figure 2.
  • the inner barrel 4a carries the hour hand 4 which is driven outwardly on a free end of this barrel, projecting above the dial CA.
  • the inner barrel 4a therefore forms an hour barrel, and it supports a first externally toothed wheel 6, called the lower wheel, comprising a plate 7. It will be specified here that advantageously this lower wheel 6 forms an hour wheel, and it meshes with a timer pinion 8 ( Figures 5 and 7) here partially shown, forming part of a timer of the movement M.
  • this hour wheel 6 receives time information delivered by the timer pinion 8, information which it transmits, as will be understood below, indirectly to the inner hours barrel 4a and to the corresponding indicator hand 4 .
  • the lower hour wheel 6 is mounted to rotate freely on the hour barrel 4a.
  • the hours cannon 4a comprises at its end opposite its free end carrying the hand 4, a collar 10 forming a shoulder freely supporting a star 12 on which the wheel 6 is fixedly held.
  • the star 12 comprises a board 13, an external toothing 14 and a circular collar 16 formed on the edge adjacent to the toothing 14, behind and coaxially with it, under the board 13.
  • the hour wheel 6 is fixedly held on the star 12 on the side, against its teeth 14.
  • the hour wheel 6 by means of the part center of its board 7 which has a through bore, is force engaged externally on the collar 16, by driving and / or by riveting.
  • the star 12 and the hour wheel 6 are therefore directly integral in rotation and, in this example, they only form, thanks to their mounting, a single piece attached to the hours cannon 4a.
  • the star 12 and the hour wheel 6 can therefore move together concomitantly under the effect of the timer pinion 8.
  • the part according to the invention further comprises two drive rollers 20 which are stepped and which each have a cylindrical base 22 from which a stud 24 extends in a normal manner.
  • the rollers are both engaged at rest, by their base 22, in the toothing 14 of the star 12 and they rest freely and laterally by this base against the sidewall, not referenced, of the plate 7 of the hour wheel 6. This rest position is likewise shown in view from above in Figure 3.
  • the rollers 20 are moreover maintained in this rest position, in the teeth 14, elastically by elastic return means 26 which are formed here by a closed annular spring, mounted coaxial with the star 12 and acting radially on the outer periphery bases 22 of the rollers 20.
  • elastic return means 26 which are formed here by a closed annular spring, mounted coaxial with the star 12 and acting radially on the outer periphery bases 22 of the rollers 20.
  • the spring 26 is mounted freely against the drive rollers 20, without any fixed attachment on the mechanism MC.
  • the spring 26 rests more freely against, and more particularly on the board 7 of the hour wheel 6. This spring is therefore self-supporting and self-centered
  • the correction mechanism MC further comprises a second barrel 30, called the outer barrel, which has a guide bore 31 and which is mounted externally, by this bore 31, on the first barrel 4a.
  • This second barrel 30 supports a second externally toothed wheel 32 disposed above the wheel lower of 6 hours and said upper wheel. It will be specified here that the upper and lower positions of the wheels 6 and 32 are taken with reference to the drawing in FIG. 2 which represents the part according to the invention in its position of use when worn, that is to say with the upward facing switch.
  • the upper wheel 32 comprises a board 33 and it meshes by its external toothing with a corrective wheel 34 (Figures 5 and 8) which can be conventionally driven by a rod T (shown schematically in Figure 5), associated with a crown CO time setting ( Figure 1).
  • the upper wheel 32 therefore forms a correction wheel making it possible, as will be understood, to directly correct the position of the hour barrel 4a and that of the indicator hand 4, without acting on the timer and therefore without disturbing the other time information, such as for example the minute and the second, but also without disturbing the time information provided by the means 3 and 5 for displaying the universal time.
  • the outer barrel 30 is forcibly mounted by driving outwardly on the inner hour barrel 4a and they are therefore fixed thereto.
  • the correction of the hours, via the corrective wheel 34, is therefore done on the inner hours barrel 4a via the outer barrel 30.
  • the hours cannon 4a is moreover driven in normal operation by the timer of the movement M, and in particular by the timer pinion 8, also thanks to the outer barrel 30.
  • the rollers 20 can therefore rotate the correction wheel 32, and the two barrels 4a and 30, when the star 12 is itself driven by the hour wheel 6.
  • the radial grooves 36 extend from the external toothing of the correction wheel 32 as far as the body of the external barrel 30 and open internally therein, more particularly in its bore 31.
  • the grooves 36 can therefore be produced at the same time, using a milling cutter, not shown, which is plunged into the plate 33 of the wheel 32 and into the barrel 30.
  • the correction mechanism MC can be controlled directly by the ring gear CO / rod T which conventionally controls a sliding pinion 40 slidably mounted in a plate PT of the movement M.
  • the sliding pinion 40 meshes with a reference 42 engaged with an intermediate wheel 44 linked to the corrective wheel 34.
  • the wheels 34 and 44 form a corrective mobile which , with the reference 42, are supported free in rotation on an auxiliary plate PTA (visible in Figure 6) attached to the plate PT.
  • the timepiece is shown in Figure 3 (without the elements C, M, 8 and 34) in a display position corresponding to one of the time zones.
  • FIG. 4 represents the part according to the invention in an intermediate position when passing over another time zone. It is therefore noted that during the rotation of the corrective wheel 34, the rollers 20 are angularly displaced and (while the star 12 and the hour wheel 6 remain stationary because of their drive by the timer) these rollers 20 jump in the toothing 14 of the star 12 by ovalizing the spring 26.
  • the structure which has just been described forms a disengageable coupling mechanism interposed between the hour wheel 6 and the inner hours barrel 4a, which allows the step-by-step correction of the hours display according to indexed positions corresponding to an integer fraction of the number of hours, without modifying the relative position of the means 3 and 5 for displaying the universal time.
  • this structure of which the hours wheel 6 and the hours cannon 4a are part, forms a unit which can be easily removed from the timepiece and which can be easily transportable without the risk of inadvertent dissociation of its components.
  • rollers 20 are kept trapped between the correction wheel 32 and the hour wheel 6 which is itself held by the two guns 4a and 30.
  • rollers 20 are moreover held in place radially by the spring 26 which is also trapped between the two upper 32 and lower 6 wheels.
  • the disassembly of this unitary structure can be carried out simply (after it has been removed from the part P), by pressing on the face at the end of the collar 16 and by releasing the inner barrel 4a by an action according to arrow D , on its end face projecting from the side of the switch.
  • rollers 20 remain supported by the plate 7 of the hour wheel 6 and the hours barrel 4a can be replaced without the other components having been dissociated.
  • the display means 3 is formed on a rotary ring 48 (partially shown in FIG. 5) which is mounted and guided in rotation on the auxiliary plate PTA by guide means 51 comprising bearings 52.
  • the rotary ring 48 which is arranged coaxially with the dial CA, around the latter, has at its periphery an external radial groove 50 in which the bearings 52 are engaged (only one being shown here) constituted in particular by a ruby.
  • the guide bearing 52 is mounted to rotate freely on a stud 54 driven into the auxiliary plate PTA and in which is fixedly engaged a retaining screw 56 retaining the bearing 52 which here has the shape of a perforated disc.
  • the part according to the invention preferably comprises three bearings of the type of that mentioned above, capable of guiding and maintaining the rotary ring 48, both axially and radially.
  • This rotary ring 48 meshes with a drive train 58 ( Figure 5) which controls its rotation.
  • the drive train 58 is constituted by a driving mobile 60 essentially carried by the auxiliary plate PTA.
  • the mobile 60 comprises a wheel 62 which is engaged with the rotary ring 48 and which is linked in rotation with a pinion 64 by means of an axis 66 driven on this pinion and on this wheel.
  • the wheel 62 is housed inside the auxiliary plate PTA, in an unreferenced recess formed therein, and it is disposed directly under the dial CA which completely covers it.
  • the pinion 64 for its part, is housed under the auxiliary plate PTA and it meshes with a wheel 68 mounted freely on an axis 70 driven into the plate PT.
  • the wheel 68 is part of a mobile 72, known as the date mobile, moreover comprising a driving wheel 74 shaped to be able to drive in the conventional manner, a date disk 76, shown partially in FIG. 1, through a window 78 provided in the dial CA.
  • the date driving wheel 74 rotates freely around the axis 70, while a spacer 80 driven on the axis 70 and supporting the wheel 68 rests thereon.
  • the drive train 58 also includes a reference 82 which comprises, as will be understood, two independent groups of mobiles, nested one in the other and mounted free in rotation relative to each other.
  • One of the above-mentioned mobiles, referenced 84, comprises a first wheel 88 - pinion 86 assembly.
  • the wheel 88 which is fixedly linked to the pinion 86 and which is arranged directly under the latter, meshes with the hour wheel 6 of the correction mechanism MC, while the pinion 86 meshes, with regard to the rotary ring 48, by being engaged directly with the wheel 68. It will be specified here that the pinion 86 and the wheel 88 form a mobile mounted idly on an axis 90 driven into the plate PT.
  • the other mobile of the reference 82, referenced 94, comprises a second wheel 98 - pinion 96 assembly.
  • the first mobile 84 formed by the wheel 88 - pinion 86 assembly is mounted idly on the axis 90 mechanically connecting the pinion 96 and the wheel 98 of the second mobile 94.
  • first mobile 84 is mounted between the pinion 96 and the wheel 98 of the second mobile 94, these two mobile 84 and 94 being able to pivot independently.
  • first and second wheels of the correction mechanism MC are linked respectively to the rotary ring 48 and to the date display formed by the disc 76, via the common reference 82. It can also be seen that the display of the dates formed by the disc 76 is controlled by the correction wheel or second wheel 32 of the correction mechanism MC.
  • the first wheel or hour wheel 6 of this correction mechanism MC which is mounted to rotate freely on the hour barrel 4a, is shaped to drive the rotary ring 48 at the rate of one revolution in twenty-four hours, counterclockwise. More particularly, the correction mechanism MC is interposed between the timer wheel 34 (FIG. 5) and the drive train 58 which controls the rotation of the rotary ring 48. Thanks to this arrangement, it can be seen that the correction mechanism MC is likely to act on the hour hand 4 independently of the drive of the rotary ring 48.
  • Figure 6 also shows the mounting of the display means 5 on a bezel 92 mounted on the box B in a conventional manner, at the periphery and on the upper part thereof.
  • the display means 3 comprising the twenty-four hour hour turn are provided on the rotary ring 48
  • the display means 5 comprising the geographical indications are provided on the outer screen 92 and are in this example fixed
  • a reverse arrangement (not shown) can be provided, in which the display means 3 are provided on the outer screen 92 and the means of display 5 on the inner rotating ring 48.

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

Abstract

The invention relates to a watch including: - a watch movement (M) including a minute gear (8, 46), - at least one hour hand (4) mounted on an hour pipe (4a) driven by the minute gear, - a rotary ring (48) driven by the hour pipe (4a) in order to make one revolution every twenty-four hours, - a first display means (3) including a twenty-four-hour hour circle, and - a second display means (5) including geographical indications respectively indicating various time zones, one (3) of the display means being accommodated on the rotary ring (48) so as to move opposite the other (15) and provide with the latter the universal time display, characterised in that it includes a correction mechanism (MC) capable of acting on the hour hand (4) independently of the driving of the rotary ring (48). <IMAGE>

Description

La présente invention concerne une pièce d'horlogerie fournissant un affichage universel de l'heure, c'est-à-dire capable de donner l'heure courante des différents fuseaux horaires, notamment en combinaison avec l'heure local au lieu du porteur.The present invention relates to a timepiece providing a universal display of the time, that is to say capable of giving the current time of the different time zones, in particular in combination with the local time instead of the wearer.

Les pièces de ce type, telles que par exemple celle décrite dans le document CH-A-662 234, comportent généralement, à l'intérieur d'une boîte logeant un mouvement horométrique classique, une couronne ou bague rotative qui effectue une rotation complète en vingt-quatre heures et qui est liée cinématiquement à une roue des heures entraînée par le mouvement. Cette bague rotative comporte, dans un mode de réalisation particulier, un tour d'heures vingt-quatre heures, tandis qu'une lunette, sur laquelle sont inscrites des indications géographiques correspondants aux divers fuseaux horaires et qui dans cet exemple est pilotée par la tige, est montée extérieurement à rotation sur la boîte.The parts of this type, such as for example that described in the document CH-A-662 234, generally comprise, inside a box housing a classic horometric movement, a rotating crown or ring which performs a complete rotation in twenty-four hours and which is kinematically linked to an hour wheel driven by the movement. This rotary ring comprises, in a particular embodiment, a twenty-four hour hour turn, while a bezel, on which are registered geographical indications corresponding to the various time zones and which in this example is controlled by the rod , is mounted externally in rotation on the box.

Cette pièce présente de nombreux inconvénients.This piece has many drawbacks.

En effet, lorsque le porteur est amené à voyager et qu'il doit modifié l'heure affichée au passage d'un fuseau horaire, la correction de l'heure qui est effectuée classiquement sur la roue des heures, provoque une rotation subséquente de la bague rotative et du tour d'heures vingt-quatre heures porté par celle-ci. L'information horaire attachée aux divers fuseaux marqués sur la lunette est alors fausse, si bien que cette dernière doit être tournée, notamment par une action sur la tige, pour de nouveau placer les indications géographiques en regard des chiffres appropriés de la bague rotative, pour fournir une information "d'heure universelle" exacte.In fact, when the wearer is required to travel and has to change the time displayed when passing through a time zone, the correction of the time which is conventionally carried out on the hour wheel, causes a subsequent rotation of the rotating ring and the twenty-four hour hour circle worn by the latter. The time information attached to the various time zones marked on the bezel is then false, so that the latter must be turned, in particular by an action on the rod, to again place the geographical indications next to the appropriate figures on the rotating ring, to provide accurate "world time" information.

On comprend que cette manoeuvre peut provoquer un affichage erroné de l'heure universelle, si, en tournant la lunette l'utilisateur se trompe dans le positionnement angulaire des indications géographiques.It is understood that this maneuver can cause a false display of the universal time, if, by turning the bezel the user is mistaken in the angular positioning of the geographical indications.

Qui plus est, on comprend que cet agencement entraîne obligatoirement la disposition d'une lunette présentant une structure tournante, ce qui complique la structure de la pièce et en élève sensiblement son coût.What is more, it is understood that this arrangement necessarily involves the provision of a telescope having a rotating structure, which complicates the structure of the part and significantly increases its cost.

On remarque aussi qu'avec cette structure, l'indication géographique indiquant le fuseau horaire sous lequel se trouve l'utilisateur ne peut être placée, sur la pièce, en une position angulaire fixe, car la lunette en tournant est obligatoirement amenée à se placer en n'importe quelle position angulaire sur la pièce.We also note that with this structure, the geographical indication indicating the time zone under which the user is located cannot be placed, on the workpiece, in a fixed angular position, because the bezel by turning is necessarily forced to be placed in any angular position on the workpiece.

Ainsi, la présente invention a-t-elle pour but de fournir une pièce d'horlogerie à affichage de l'heure universelle qui soit de conception simple et dans laquelle l'heure courante affichée puisse être modifiée sans influence sur l'heure universelle.Thus, the present invention aims to provide a timepiece with universal time display which is of simple design and in which the current displayed time can be changed without influence on the universal time.

La présente invention a aussi pour but de fournir une pièce d'horlogerie du type susmentionné, munie d'un affichage des quantièmes.The present invention also aims to provide a timepiece of the aforementioned type, provided with a date display.

A cet effet, l'invention a pour objet une pièce d'horlogerie comportant:

  • un mouvement horométrique comportant au moins minuterie,
  • au moins une aiguille des heures qui est montée sur un canon des heures entraîné par la dite minuterie,
  • une bague rotative entraînée par le canon des heures pour effectuer un tour par vingt-quatre heures,
  • un premiers moyen d'affichage comportant un tour d'heures vingt-quatre heures,et
  • un second moyen d'affichage comportant des indications géographiques indiquant respectivement divers fuseaux horaires, l'un desdits moyens d'affichage étant ménagé sur la bague rotative pour se déplacer en regard de l'autre et pour fournir avec celui-ci ledit affichage universel de l'heure, caractérisée en ce qu'elle comporte un mécanisme de correction susceptible d'agir sur ladite aiguille des heures indépendamment de l'entraînement de ladite bague rotative.
To this end, the invention relates to a timepiece comprising:
  • a horometric movement comprising at least a timer,
  • at least one hour hand which is mounted on an hour cannon driven by said timer,
  • a rotating ring driven by the hour cannon to make a revolution every twenty-four hours,
  • a first display means comprising a twenty-four hour hour tour, and
  • a second display means comprising geographical indications respectively indicating various time zones, one of said display means being arranged on the rotary ring to move opposite the other and to provide therewith said display universal time, characterized in that it includes a correction mechanism capable of acting on said hour hand independently of the drive of said rotary ring.

D'autres caractéristiques et avantages de l'invention apparaîtront à la lecture de la description détaillée qui suit, faite en référence aux dessins annexés qui sont donnés uniquement à titre d'exemple, et dans lesquels:

  • la figure 1 est une vue de dessus d'une pièce d'horlogerie selon l'invention,
  • la figure 2, qui est une vue faite selon la ligne II-II des figures 3 et 5, représente en coupe longitudinale un mécanisme de correction équipant la pièce selon l'invention ;
  • la figure 3, qui est une vue de dessus faite selon la ligne III-III de la figure 2, représente partiellement en coupe et dans une première position le mécanisme de la figure 2 ;
  • la figure 4 est une vue similaire à la figure 3, mais représentant le mécanisme de la pièce selon l'invention dans une deuxième position, lors du passage sur un autre fuseau horaire,
  • la figure 5 est une vue de dessus très schématique de différents mobiles d'entraînement de la pièce selon l'invention, et
  • les figures 6, 7 et 8 sont des vues schématiques en coupe de la pièce selon l'invention, faites respectivement selon les lignes VI-VI, VII-VII et VIII-VIII de la figure 5, et dans lesquelles le mécanisme de correction des figures 1 à 3, bien que vu selon différents plans de coupe, a été représenté d'une façon identique dans un but de simplification des dessins.
Other characteristics and advantages of the invention will appear on reading the detailed description which follows, given with reference to the appended drawings which are given solely by way of example, and in which:
  • FIG. 1 is a top view of a timepiece according to the invention,
  • Figure 2, which is a view taken along the line II-II of Figures 3 and 5, shows in longitudinal section a correction mechanism fitted to the part according to the invention;
  • Figure 3, which is a top view taken along line III-III of Figure 2, partially shows in section and in a first position the mechanism of Figure 2;
  • FIG. 4 is a view similar to FIG. 3, but showing the mechanism of the part according to the invention in a second position, when passing over another time zone,
  • FIG. 5 is a very schematic top view of various mobile drives for the part according to the invention, and
  • Figures 6, 7 and 8 are schematic sectional views of the part according to the invention, taken respectively along lines VI-VI, VII-VII and VIII-VIII of Figure 5, and in which the mechanism for correcting Figures 1 to 3, although seen according to different cutting planes, has been shown in an identical manner for the purpose of simplifying the drawings.

En se référant tout d'abord à la figure 1, on décrira ci-après une pièce d'horlogerie selon l'invention qui est désignée par la référence générale P.
   la pièce d'horlogerie P comporte une boîte B sur laquelle sont ménagées classiquement des cornes CN (une seule étant référencée) permettant l'assujettissement d'un bracelet classique (non référencé).Referring first to Figure 1, there will be described below a timepiece according to the invention which is designated by the general reference P.
the timepiece P comprises a box B on which are conventionally provided CN horns (a only being referenced) allowing the subjugation of a conventional bracelet (not referenced).

La pièce P comporte, dans cet exemple, deux aiguilles d'affichage, à savoir une aiguille 2 des minutes et une aiguille 4 des heures, évoluant toutes deux en regard d'un cadran CA pour fournir une information horaire analogique, correspondant généralement à l'heure locale du lieu où se trouve le porteur de la pièce P.The part P comprises, in this example, two display hands, namely a 2 minute hand and a 4 hour hand, both evolving opposite a dial CA to provide analog time information, generally corresponding to the local time of the location of the bearer of the piece P.

La pièce P comporte un premier moyen d'affichage 3, dit moyen d'affichage vingt-quatre heures, comprenant un tour d'heures vingt-quatre heures (même référence) représenté ici classiquement par un groupe de chiffres arabes 1 à 24. La pièce P comporte en outre un second moyen d'affichage 5 qui comprend des indications géographiques (ici des noms de villes) se rapportant respectivement aux divers fuseaux horaires.The part P includes a first display means 3, called the twenty-four hour display means, comprising a twenty-four hour clock (same reference) represented here conventionally by a group of Arabic numerals 1 to 24. The room P also comprises a second display means 5 which includes geographical indications (here names of cities) relating respectively to the various time zones.

L'aiguille des minutes 2, l'aiguille des heures 4 et, dans le mode de réalisation représenté, le premier moyen d'affichage 3 sont liés cinématiquement à un mouvement horométrique classique M (figures 2 et 6 à 8) logé dans la boîte B. L'aiguille des heures 4 effectue, dans cet exemple et de façon classique, un tour en douze heures, tandis que le moyen d'affichage 3 effectue un tour toutes les vingt-quatre heures, dans le sens anti-horaire.The minute hand 2, the hour hand 4 and, in the embodiment shown, the first display means 3 are kinematically linked to a conventional horometric movement M (FIGS. 2 and 6 to 8) housed in the box B. The hour hand 4 performs, in this example and in a conventional manner, one revolution in twelve hours, while the display means 3 makes one revolution every twenty-four hours, counterclockwise.

Comme on le comprendra de la description qui suit, les moyens d'affichage 5 comportant les indications géographiques sont, dans ce mode de réalisation, avantageusement ménagés sur la pièce P, de préférence fixement, par exemple sur la boîte B ou sur une glace, non représentée. Les moyens d'affichage 3 et 5 fournissent, en combinaison et de façon classique, l'heure à différents endroits du globe sur les vingt-quatre fuseaux horaires, cette heure étant dite heure universelle.As will be understood from the following description, the display means 5 comprising the geographical indications are, in this embodiment, advantageously arranged on the part P, preferably fixedly, for example on the box B or on a glass, not shown. The display means 3 and 5 provide, in combination and in a conventional manner, the time in different places of the globe on the twenty-four time zones, this time being called universal time.

En se référant désormais aux figures 2 à 4, on décrira ci-après un mécanisme de correction MC permettant de corriger la position de l'aiguille des heures 4, sans perturber l'information horaire fournie par les moyens d'affichage 3 et 5.Referring now to FIGS. 2 to 4, a correction mechanism MC will be described below making it possible to correct the position of the hour hand 4, without disrupt the time information provided by the display means 3 and 5.

Comme on le voit sur la figure 2, Le mécanisme de correction MC comporte un premier canon 4a, dit canon intérieur, destiné à être monté classiquement à rotation autour d'un axe de rotation X, sur une chaussée C pilotée par le mouvement horométrique M, tous deux représentés de façon schématique en traits mixtes interrompus sur la figure 2. Le canon intérieur 4a porte l'aiguille des heures 4 qui est chassée extérieurement sur une extrémité libre de ce canon, faisant saillie au-dessus du cadran CA.As can be seen in FIG. 2, the correction mechanism MC comprises a first barrel 4a, called the inner barrel, intended to be conventionally mounted for rotation about an axis of rotation X, on a carriageway C controlled by the horometric movement M , both shown schematically in broken lines broken in Figure 2. The inner barrel 4a carries the hour hand 4 which is driven outwardly on a free end of this barrel, projecting above the dial CA.

Le canon intérieur 4a forme donc un canon des heures, et il supporte une première roue extérieurement dentée 6, dite roue inférieure, comportant une planche 7. On précisera ici que de façon avantageuse cette roue inférieure 6 forme une roue des heures, et elle engrène avec un pignon de minuterie 8 (figures 5 et 7) ici partiellement représentée, faisant partie d'une minuterie du mouvement M.The inner barrel 4a therefore forms an hour barrel, and it supports a first externally toothed wheel 6, called the lower wheel, comprising a plate 7. It will be specified here that advantageously this lower wheel 6 forms an hour wheel, and it meshes with a timer pinion 8 (Figures 5 and 7) here partially shown, forming part of a timer of the movement M.

En fonctionnement normal, cette roue des heures 6 reçoit une information horaire délivrée par le pignon de minuterie 8, information qu'elle transmet, comme on le comprendra ci-après, indirectement au canon intérieur des heures 4a et à l'aiguille indicatrice correspondante 4.In normal operation, this hour wheel 6 receives time information delivered by the timer pinion 8, information which it transmits, as will be understood below, indirectly to the inner hours barrel 4a and to the corresponding indicator hand 4 .

En effet, la roue inférieure des heures 6 est montée libre en rotation sur le canon des heures 4a. Pour cela, le canon des heures 4a comporte à son extrémité opposée à son extrémité libre portant l'aiguille 4, une collerette 10 formant un épaulement supportant librement une étoile 12 sur laquelle est maintenue fixement la roue 6. L'étoile 12 comporte une planche 13, une denture extérieure 14 et un collet circulaire 16 ménagé à chant de façon adjacente à la denture 14, derrière et de façon coaxiale à celle-ci, sous la planche 13.Indeed, the lower hour wheel 6 is mounted to rotate freely on the hour barrel 4a. For this, the hours cannon 4a comprises at its end opposite its free end carrying the hand 4, a collar 10 forming a shoulder freely supporting a star 12 on which the wheel 6 is fixedly held. The star 12 comprises a board 13, an external toothing 14 and a circular collar 16 formed on the edge adjacent to the toothing 14, behind and coaxially with it, under the board 13.

La roue des heures 6 est maintenue fixement sur l'étoile 12 à flanc, contre sa denture 14. En effet, la roue des heures 6 par l'intermédiaire de la partie centrale de sa planche 7 qui présente un alésage débouchant, est engagée à force extérieurement sur le collet 16, par chassage et/ou par rivetage.The hour wheel 6 is fixedly held on the star 12 on the side, against its teeth 14. In fact, the hour wheel 6 by means of the part center of its board 7 which has a through bore, is force engaged externally on the collar 16, by driving and / or by riveting.

L'étoile 12 et la roue des heures 6 sont donc directement solidaires en rotation et, dans cet exemple, elles ne forment, grâce à leur montage, qu'une seule pièce rapportée sur le canon des heures 4a.The star 12 and the hour wheel 6 are therefore directly integral in rotation and, in this example, they only form, thanks to their mounting, a single piece attached to the hours cannon 4a.

L'étoile 12 et la roue des heures 6 peuvent donc se déplacer ensemble de façon concomitante sous l'effet du pignon de minuterie 8.The star 12 and the hour wheel 6 can therefore move together concomitantly under the effect of the timer pinion 8.

La pièce selon l'invention comporte de plus deux galets d'entraînement 20 qui sont étagés et qui présentent chacun une embase cylindrique 22 à partir de laquelle s'étend de façon normale un tenon 24. Les galets sont engagés tous deux au repos, par leur embase 22, dans la denture 14 de l'étoile 12 et ils reposent librement et latéralement par cette embase contre le flanc, non référencé, de la planche 7 de la roue des heures 6. Cette position de repos est de même représentée en vue de dessus à la figure 3.The part according to the invention further comprises two drive rollers 20 which are stepped and which each have a cylindrical base 22 from which a stud 24 extends in a normal manner. The rollers are both engaged at rest, by their base 22, in the toothing 14 of the star 12 and they rest freely and laterally by this base against the sidewall, not referenced, of the plate 7 of the hour wheel 6. This rest position is likewise shown in view from above in Figure 3.

Les galets 20 sont de plus maintenus dans cette position de repos, dans la denture 14, élastiquement par des moyens élastiques de rappel 26 qui sont formés ici par un ressort annulaire fermé, monté coaxial à l'étoile 12 et agissant radialement sur le pourtour extérieur des embases 22 des galets 20. On remarquera ici que le ressort 26 est monté librement contre les galets d'entraînement 20, sans aucune attache fixe sur le mécanisme MC. Le ressort 26 repose de plus librement contre, et plus particulièrement sur la planche 7 de la roue des heures 6. Ce ressort est donc auto-porté et auto-centréThe rollers 20 are moreover maintained in this rest position, in the teeth 14, elastically by elastic return means 26 which are formed here by a closed annular spring, mounted coaxial with the star 12 and acting radially on the outer periphery bases 22 of the rollers 20. It will be noted here that the spring 26 is mounted freely against the drive rollers 20, without any fixed attachment on the mechanism MC. The spring 26 rests more freely against, and more particularly on the board 7 of the hour wheel 6. This spring is therefore self-supporting and self-centered

Le mécanisme de correction MC selon l'invention comporte de plus un second canon 30, dit canon extérieur, qui comporte un alésage de guidage 31 et qui est monté extérieurement, par cette alésage 31, sur le premier canon 4a. Ce second canon 30 supporte une seconde roue extérieurement dentée 32 disposée au dessus de la roue inférieure des heures 6 et dite roue supérieure. On précisera ici que les positions supérieure et inférieure des roues 6 et 32 sont prises en référence au dessin de la figure 2 qui représente la pièce selon l'invention dans sa position d'utilisation au porter, c'est-à-dire avec l'aiguillage orienté vers le haut.The correction mechanism MC according to the invention further comprises a second barrel 30, called the outer barrel, which has a guide bore 31 and which is mounted externally, by this bore 31, on the first barrel 4a. This second barrel 30 supports a second externally toothed wheel 32 disposed above the wheel lower of 6 hours and said upper wheel. It will be specified here that the upper and lower positions of the wheels 6 and 32 are taken with reference to the drawing in FIG. 2 which represents the part according to the invention in its position of use when worn, that is to say with the upward facing switch.

La roue supérieure 32 comporte une planche 33 et elle engrène par sa denture extérieure avec une roue correctrice 34 (figures 5 et 8) qui peut être pilotée classiquement par une tige T (représentée de façon schématique à la figure 5), associée à une couronne de mise à l'heure CO (figure 1).The upper wheel 32 comprises a board 33 and it meshes by its external toothing with a corrective wheel 34 (Figures 5 and 8) which can be conventionally driven by a rod T (shown schematically in Figure 5), associated with a crown CO time setting (Figure 1).

La roue supérieure 32 forme donc une roue de correction permettant, comme on le comprendra, de corriger directement la position du canon des heures 4a et celle de l'aiguille indicatrice 4, sans agir sur la minuterie et donc sans perturber les autres informations horaires, telles que par exemple la minute et la seconde, mais aussi sans perturber les informations horaires fournies par les moyens 3 et 5 d'affichage de l'heure universelle.The upper wheel 32 therefore forms a correction wheel making it possible, as will be understood, to directly correct the position of the hour barrel 4a and that of the indicator hand 4, without acting on the timer and therefore without disturbing the other time information, such as for example the minute and the second, but also without disturbing the time information provided by the means 3 and 5 for displaying the universal time.

De façon avantageuse, le canon extérieur 30 est monté à force par chassage extérieurement sur le canon intérieure des heures 4a et ils est donc fixé à celui-ci.Advantageously, the outer barrel 30 is forcibly mounted by driving outwardly on the inner hour barrel 4a and they are therefore fixed thereto.

Ces deux canons sont donc solidaires en rotation et ils peuvent se déplacer ensemble de façon concomitante.These two guns are therefore integral in rotation and they can move together concomitantly.

La correction des heures, via la roue correctrice 34, se fait donc sur le canon intérieur des heures 4a par l'intermédiaire du canon extérieur 30.The correction of the hours, via the corrective wheel 34, is therefore done on the inner hours barrel 4a via the outer barrel 30.

On précisera que le canon des heures 4a est de plus entraîné en fonctionnement normal par la minuterie du mouvement M, et notamment par le pignon de minuterie 8, aussi grâce au canon extérieur 30.It will be noted that the hours cannon 4a is moreover driven in normal operation by the timer of the movement M, and in particular by the timer pinion 8, also thanks to the outer barrel 30.

C'est pourquoi dans la planche 33 de la roue de correction 32 sont ménagées des rainures radiales 36 dans lesquelles sont engagés librement les tenons 24 qui peuvent se translater radialement dans celles-ci.This is why in the plate 33 of the correction wheel 32 are formed radial grooves 36 in which are freely engaged the pins 24 which can translate radially therein.

Les galets 20 peuvent donc entraîner en rotation la roue de correction 32, et les deux canons 4a et 30, lorsque l'étoile 12 est elle même entraînée par la roue des heures 6.The rollers 20 can therefore rotate the correction wheel 32, and the two barrels 4a and 30, when the star 12 is itself driven by the hour wheel 6.

On remarquera que les rainures radiales 36 s'étendent depuis la denture extérieure de la roue de correction 32 jusque dans le corps du canon extérieur 30 et débouchent intérieurement dans celui-ci, plus particulièrement dans son alésage 31.It will be noted that the radial grooves 36 extend from the external toothing of the correction wheel 32 as far as the body of the external barrel 30 and open internally therein, more particularly in its bore 31.

Les rainures 36 peuvent donc être réalisées en même temps, à l'aide d'une fraise de forme, non représentée, que l'on fait plonger dans la planche 33 de la roue 32 et dans le canon 30.The grooves 36 can therefore be produced at the same time, using a milling cutter, not shown, which is plunged into the plate 33 of the wheel 32 and into the barrel 30.

On remarquera aussi que l'étoile 12 est maintenue axialement entre le canon extérieur 30 et la collerette 10 du canon des heures 4a. Ces deux canons qui sont chassés l'un dans l'autre forment donc une gorge 38 permettant le guidage en rotation et le maintien axial de l'ensemble rapporté constitué par l'étoile 12 et la roue des heures 6.It will also be noted that the star 12 is held axially between the outer barrel 30 and the collar 10 of the hour barrel 4a. These two guns which are driven one into the other therefore form a groove 38 allowing the guiding in rotation and the axial maintenance of the attached assembly constituted by the star 12 and the hour wheel 6.

Comme on le voit sur les figures 5 et 8, le mécanisme de correction MC peut être piloté directement par l'ensemble couronne CO/tige T qui commande classiquement un pignon baladeur 40 monté coulissant dans une platine PT du mouvement M. Lorsque la couronne CO est tournée dans un premier sens de rotation pour effectuer une correction rapide des heures, le pignon baladeur 40 vient engrener avec un renvoi 42 en prise avec une roue intermédiaire 44 liée à la roue correctrice 34. Les roues 34 et 44 forment un mobile correcteur qui, avec le renvoi 42, sont supportés libres en rotation sur une platine auxiliaire PTA (visible sur la figure 6) rapportée sur la platine PT.As can be seen in FIGS. 5 and 8, the correction mechanism MC can be controlled directly by the ring gear CO / rod T which conventionally controls a sliding pinion 40 slidably mounted in a plate PT of the movement M. When the ring CO is rotated in a first direction of rotation to effect a rapid correction of the hours, the sliding pinion 40 meshes with a reference 42 engaged with an intermediate wheel 44 linked to the corrective wheel 34. The wheels 34 and 44 form a corrective mobile which , with the reference 42, are supported free in rotation on an auxiliary plate PTA (visible in Figure 6) attached to the plate PT.

Par ailleurs, en se reportant désormais aux figures 5 et 7, on notera que, lorsque la couronne CO est tournée dans un deuxième sens de rotation, le pignon baladeur 40 vient engrener avec une roue de minuterie 46 qui est liée au pignon de minuterie 8 et qui est en prise de façon classique avec la chaussée C (non représenté). Ainsi, lors de la mise à l'heure classique des heures et des minutes, la rotation de la couronne CO provoque le déplacement en rotation du pignon baladeur 40, mais aussi du mobile de minuterie 8,46; ce qui provoque le déplacement en rotation du mécanisme de correction MC dans son ensemble (roues 6 et 32).Furthermore, with reference now to FIGS. 5 and 7, it will be noted that, when the crown CO is turned in a second direction of rotation, the sliding pinion 40 meshes with a timer wheel 46 which is linked to the timer pinion 8 and that is engaged so classic with pavement C (not shown). Thus, during the conventional setting of the hours and minutes, the rotation of the crown CO causes the sliding pinion 40, but also the timer mobile 8,46 to rotate; which causes the entire MC correction mechanism to move in rotation (wheels 6 and 32).

La pièce d'horlogerie est représentée sur la figure 3 (sans les éléments C, M, 8 et 34) dans une position d'affichage correspondant à l'un des fuseaux horaires.The timepiece is shown in Figure 3 (without the elements C, M, 8 and 34) in a display position corresponding to one of the time zones.

La figure 4 représente la pièce selon l'invention dans une position intermédiaire lors du passage sur un autre fuseau horaire. On remarque donc que lors de la mise en rotation de la roue correctrice 34, les galets 20 sont déplacés angulairement et (alors que l'étoile 12 et la roue des heures 6 restent immobiles à cause de leur entraînement par la minuterie) ces galets 20 sautent dans la denture 14 de l'étoile 12 en ovalisant le ressort 26.FIG. 4 represents the part according to the invention in an intermediate position when passing over another time zone. It is therefore noted that during the rotation of the corrective wheel 34, the rollers 20 are angularly displaced and (while the star 12 and the hour wheel 6 remain stationary because of their drive by the timer) these rollers 20 jump in the toothing 14 of the star 12 by ovalizing the spring 26.

Les galets 20 reviennent ensuite dans la denture 14 de l'étoile 12, en position de repos, mais de façon décalée par rapport à leur position initiale (figure 3). L'aiguille 4 indique alors un autre fuseau horaire. On précisera que bien que la denture de l'étoile 12 comporte 12 dents sur les figures (pour positionner l'aiguille 4 sur les 12 heures), cette denture pourrait en comporter 24 pour une application à une pièce d'horlogerie à affichage du type 24 heures.The rollers 20 then return to the teeth 14 of the star 12, in the rest position, but offset from their initial position (Figure 3). Hand 4 then indicates another time zone. It will be noted that although the toothing of the star 12 has 12 teeth in the figures (to position the hand 4 over the 12 hours), this toothing could have 24 for application to a timepiece with display of the type 24 hours.

On comprend que la structure qui vient d'être décrite forme un mécanisme d'accouplement débrayable interposé entre la roue des heures 6 et le canon intérieur des heures 4a, qui permet la correction pas-à-pas de l'affichage des heures selon des positions indexées correspondant à une fraction entière du nombre d'heures, sans modification de la position relative des moyens 3 et 5 d'affichage de l'heure universelle.It is understood that the structure which has just been described forms a disengageable coupling mechanism interposed between the hour wheel 6 and the inner hours barrel 4a, which allows the step-by-step correction of the hours display according to indexed positions corresponding to an integer fraction of the number of hours, without modifying the relative position of the means 3 and 5 for displaying the universal time.

On remarquera aussi que cette structure, dont font partie la roue des heures 6 et le canon des heures 4a, forme une unité qui peut être facilement sortie de la pièce d'horlogerie et qui peut être facilement transportable sans risque de dissociation intempestive de ses composants.It will also be noted that this structure, of which the hours wheel 6 and the hours cannon 4a are part, forms a unit which can be easily removed from the timepiece and which can be easily transportable without the risk of inadvertent dissociation of its components.

En effet, les galets 20 sont maintenus emprisonnés entre la roue de correction 32 et la roue des heures 6 qui est elle même maintenue par les deux canons 4a et 30.Indeed, the rollers 20 are kept trapped between the correction wheel 32 and the hour wheel 6 which is itself held by the two guns 4a and 30.

Les galets 20 sont de plus maintenus en place radialement par le ressort 26 qui est aussi emprisonné entre les deux roues supérieure 32 et inférieure 6.The rollers 20 are moreover held in place radially by the spring 26 which is also trapped between the two upper 32 and lower 6 wheels.

Le démontage de cette structure unitaire peut s'effectuer simplement (après qu'elle ait été sortie de la pièce P), en prenant appui sur la face en bout du collet 16 et en dégageant le canon intérieur 4a par une action selon la flèche D, sur sa face en bout faisant saillie du côté de l'aiguillage.The disassembly of this unitary structure can be carried out simply (after it has been removed from the part P), by pressing on the face at the end of the collar 16 and by releasing the inner barrel 4a by an action according to arrow D , on its end face projecting from the side of the switch.

Dans ce cas, les galets 20 restent supportés par la planche 7 de la roue des heures 6 et le canon des heures 4a peut être remplacé sans que les autres composants n'aient été dissociés.In this case, the rollers 20 remain supported by the plate 7 of the hour wheel 6 and the hours barrel 4a can be replaced without the other components having been dissociated.

En se référant désormais aux figures 5 et 6 on décrira ci-après la structure des moyens d'affichage 3 et 5 (figure 1) et leur liaison avec les autres composants de la pièce d'horlogerie P selon l'invention.Referring now to Figures 5 and 6 will be described below the structure of the display means 3 and 5 (Figure 1) and their connection with the other components of the timepiece P according to the invention.

Dans l'exemple représenté, le moyen d'affichage 3 est ménagé sur une bague rotative 48 (représentée partiellement sur la figure 5) qui est montée et guidée en rotation sur la platine auxiliaire PTA par des moyens de guidage 51 comportant des paliers 52. La bague rotative 48 qui est disposée de façon coaxiale au cadran CA, autour de celui-ci, présente à sa périphérie une gorge radiale extérieure 50 dans laquelle sont engagés les paliers 52 (un seul étant ici représenté) constitués notamment par un rubis. Le palier de guidage 52 est monté libre en rotation sur un plot 54 chassé dans la platine auxiliaire PTA et dans lequel est engagé fixement une vis de maintien 56 retenant le palier 52 qui a ici la forme d'un disque ajouré.In the example shown, the display means 3 is formed on a rotary ring 48 (partially shown in FIG. 5) which is mounted and guided in rotation on the auxiliary plate PTA by guide means 51 comprising bearings 52. The rotary ring 48 which is arranged coaxially with the dial CA, around the latter, has at its periphery an external radial groove 50 in which the bearings 52 are engaged (only one being shown here) constituted in particular by a ruby. The guide bearing 52 is mounted to rotate freely on a stud 54 driven into the auxiliary plate PTA and in which is fixedly engaged a retaining screw 56 retaining the bearing 52 which here has the shape of a perforated disc.

La pièce selon l'invention comporte de préférence trois paliers du type de celui susmentionné, capables d'assurer le guidage et le maintien de la bague rotative 48, aussi bien axialement que radialement.The part according to the invention preferably comprises three bearings of the type of that mentioned above, capable of guiding and maintaining the rotary ring 48, both axially and radially.

Cette bague rotative 48 engrène avec un train d'entraînement 58 (figure 5) qui commande sa rotation.This rotary ring 48 meshes with a drive train 58 (Figure 5) which controls its rotation.

Le train d'entraînement 58 est constitué par un mobile d'entraînement 60 essentiellement porté par la platine auxiliaire PTA. Le mobile 60 comporte une roue 62 qui est en prise avec la bague rotative 48 et qui est liée en rotation avec un pignon 64 par l'intermédiaire d'un axe 66 chassé sur ce pignon et sur cette roue. La roue 62 est logée à l'intérieur de la platine auxiliaire PTA, dans une creusure non référencée ménagée dans celle-ci, et elle est disposée directement sous le cadran CA qui la recouvre entièrement.The drive train 58 is constituted by a driving mobile 60 essentially carried by the auxiliary plate PTA. The mobile 60 comprises a wheel 62 which is engaged with the rotary ring 48 and which is linked in rotation with a pinion 64 by means of an axis 66 driven on this pinion and on this wheel. The wheel 62 is housed inside the auxiliary plate PTA, in an unreferenced recess formed therein, and it is disposed directly under the dial CA which completely covers it.

On remarquera que cette roue 62 est rapportée sur la figure 6 dans la vue en coupe de bague 48 pour une meilleure compréhension du dessin.It will be noted that this wheel 62 is reported in FIG. 6 in the section view of the ring 48 for a better understanding of the drawing.

Le pignon 64, quant à lui, est logé sous la platine auxiliaire PTA et il engrène avec une roue 68 montée libre sur un axe 70 chassé dans la platine PT.The pinion 64, for its part, is housed under the auxiliary plate PTA and it meshes with a wheel 68 mounted freely on an axis 70 driven into the plate PT.

On notera ici que la roue 68 fait partie d'un mobile 72, dit mobile des quantièmes, comprenant par ailleurs une roue entraîneuse 74 conformée pour pouvoir piloter de façon classique, un disque des quantièmes 76, représenté de façon partielle sur la figure 1, au travers d'un guichet 78 ménagé dans le cadran CA. La roue entraîneuse des quantièmes 74 tourne de façon libre autour de l'axe 70, tandis que repose sur celle-ci un espaceur 80 chassé sur l'axe 70 et supportant la roue 68.It will be noted here that the wheel 68 is part of a mobile 72, known as the date mobile, moreover comprising a driving wheel 74 shaped to be able to drive in the conventional manner, a date disk 76, shown partially in FIG. 1, through a window 78 provided in the dial CA. The date driving wheel 74 rotates freely around the axis 70, while a spacer 80 driven on the axis 70 and supporting the wheel 68 rests thereon.

Le train d'entraînement 58 comporte par ailleurs un renvoi 82 qui comporte, comme on le comprendra, deux groupes indépendants de mobiles, imbriqués l'un dans l'autre et montés libres en rotation l'un par rapport à l'autre.The drive train 58 also includes a reference 82 which comprises, as will be understood, two independent groups of mobiles, nested one in the other and mounted free in rotation relative to each other.

L'un des mobiles précités, référencé 84, comporte un premier ensemble roue 88 - pignon 86.One of the above-mentioned mobiles, referenced 84, comprises a first wheel 88 - pinion 86 assembly.

La roue 88 qui est liée fixement au pignon 86 et qui est disposée directement sous celui-ci, engrène avec la roue des heures 6 du mécanisme de correction MC, tandis que le pignon 86 engrène, quant à lui, avec la bague rotative 48, en étant en prise directement avec la roue 68. On précisera ici que le pignon 86 et la roue 88 forment un mobile monté fou sur un axe 90 chassé dans la platine PT.The wheel 88 which is fixedly linked to the pinion 86 and which is arranged directly under the latter, meshes with the hour wheel 6 of the correction mechanism MC, while the pinion 86 meshes, with regard to the rotary ring 48, by being engaged directly with the wheel 68. It will be specified here that the pinion 86 and the wheel 88 form a mobile mounted idly on an axis 90 driven into the plate PT.

L'autre mobile du renvoi 82, référencé 94, comporte quant à lui un second ensemble roue 98 - pignon 96.The other mobile of the reference 82, referenced 94, comprises a second wheel 98 - pinion 96 assembly.

La roue 98 qui est chassée sur l'axe commun 90, directement au-dessus du pignon 86, engrène directement avec la roue de correction 32 du mécanisme de correction MC, tandis que le pignon 96, qui est lui aussi chassé sur l'axe commun 90, mais qui est disposé sous la roue 88 du mobile 84, engrène directement avec l'entraîneur des quantièmes 74.The wheel 98 which is driven on the common axis 90, directly above the pinion 86, meshes directly with the correction wheel 32 of the correction mechanism MC, while the pinion 96, which is also driven on the axis common 90, but which is arranged under the wheel 88 of the mobile 84, meshes directly with the date trainer 74.

Ainsi, le premier mobile 84 formé par l'ensemble roue 88 - pignon 86 est monté fou sur l'axe 90 reliant mécaniquement le pignon 96 et la roue 98 du second mobile 94.Thus, the first mobile 84 formed by the wheel 88 - pinion 86 assembly is mounted idly on the axis 90 mechanically connecting the pinion 96 and the wheel 98 of the second mobile 94.

On notera ici que le premier mobile 84 est monté entre le pignon 96 et la roue 98 du second mobile 94, ces deux mobiles 84 et 94 pouvant pivoter de façon indépendante.It will be noted here that the first mobile 84 is mounted between the pinion 96 and the wheel 98 of the second mobile 94, these two mobile 84 and 94 being able to pivot independently.

On constate aussi que la première et la seconde roue du mécanisme de correction MC, respectivement 6 et 32, sont liées de façon respective à la bague rotative 48 et à l'affichage des quantièmes formé par le disque 76, via le renvoi commun 82. On constate par ailleurs que l'affichage des quantièmes formé par le disque 76 est piloté par la roue de correction ou seconde roue 32 du mécanisme de correction MC. On précisera de plus que la première roue ou roue des heures 6 de ce mécanisme de correction MC qui est montée libre en rotation sur le canon des heures 4a, est conformée pour entraîner la bague rotative 48 à raison d'un tour en vingt-quatre heures, dans le sens antihoraire. Plus particulièrement, le mécanisme de correction MC est interposé entre la roue de minuterie 34 (figure 5) et le train d'entraînement 58 qui commande la rotation de la bague rotative 48. Grâce à cette disposition, on constate que le mécanisme de correction MC est susceptible d'agir sur l'aiguille des heures 4 indépendamment de l'entraînement de la bague rotative 48.It can also be seen that the first and second wheels of the correction mechanism MC, respectively 6 and 32, are linked respectively to the rotary ring 48 and to the date display formed by the disc 76, via the common reference 82. It can also be seen that the display of the dates formed by the disc 76 is controlled by the correction wheel or second wheel 32 of the correction mechanism MC. We will further specify that the first wheel or hour wheel 6 of this correction mechanism MC which is mounted to rotate freely on the hour barrel 4a, is shaped to drive the rotary ring 48 at the rate of one revolution in twenty-four hours, counterclockwise. More particularly, the correction mechanism MC is interposed between the timer wheel 34 (FIG. 5) and the drive train 58 which controls the rotation of the rotary ring 48. Thanks to this arrangement, it can be seen that the correction mechanism MC is likely to act on the hour hand 4 independently of the drive of the rotary ring 48.

On observe en effet que lorsque la roue de correction 32 est pilotée par la couronne CO, comme on l'a expliqué ci-avant, le déplacement angulaire de l'aiguille des heures 4 se produit sans provoquer d'entraînement subséquent de la roue des heures 6 puisque cette roue de correction 32 ne fait pas partie du train d'entraînement 58, étant donné qu'elle n'engrène uniquement qu'avec la roue 98 qui pilote indirectement l'entraîneur des quantièmes 74.It is observed in fact that when the correction wheel 32 is driven by the crown CO, as explained above, the angular displacement of the hour hand 4 occurs without causing subsequent driving of the wheel of the hours 6 since this correction wheel 32 is not part of the drive train 58, since it only meshes with the wheel 98 which indirectly drives the date trainer 74.

On précisera aussi ici que grâce à cette disposition, lors du passage sur un autre fuseau horaire, et notamment lors du passage à minuit, le disque des quantièmes 76 est entraîné en rotation, ce qui permet le passage au jour suivant. On constate par ailleurs que lors de l'entraînement normal les roues 6 et 32 du mécanisme de correction MC tournant à la même vitesse, les deux mobiles 94 et 84 sont aussi entraînés à la même vitesse et se déplacent donc de façon concomitance avec l'axe 90, sans provoquer de frottement sur celui-ci. Dans cet agencement on précisera aussi que les roues 6 et 32 présentent le même nombre de dents, ce qui est aussi le cas pour les deux roues 88 et 98 et pour les deux pignons 86 et 96.It will also be specified here that, thanks to this arrangement, when switching to another time zone, and in particular when switching to midnight, the date disc 76 is rotated, which allows the passage to the next day. We also note that during normal drive the wheels 6 and 32 of the MC correction mechanism rotating at the same speed, the two mobiles 94 and 84 are also driven at the same speed and therefore move concomitantly with the axis 90, without causing friction thereon. In this arrangement, it will also be specified that the wheels 6 and 32 have the same number of teeth, which is also the case for the two wheels 88 and 98 and for the two pinions 86 and 96.

La figure 6 montre par ailleurs le montage des moyens d'affichage 5 sur une lunette 92 montée sur la boîte B de façon classique, à la périphérie et sur la partie supérieure de celle-ci.Figure 6 also shows the mounting of the display means 5 on a bezel 92 mounted on the box B in a conventional manner, at the periphery and on the upper part thereof.

On précisera encore que, bien que dans le mode de réalisation qui vient d'être décrit, les moyens d'affichage 3 comportant le tour d'heure vingt-quatre heures sont ménagés sur la bague rotative 48, alors que les moyens d'affichage 5 comportant les indications géographiques sont ménagés sur la lunette extérieure 92 et sont dans cet exemple fixes, une disposition inverse (non représentée) peut être prévue, dans laquelle les moyens d'affichage 3 sont ménagés sur la lunette extérieure 92 et les moyens d'affichage 5 sur la bague intérieure rotative 48.It will also be specified that, although in the embodiment which has just been described, the display means 3 comprising the twenty-four hour hour turn are provided on the rotary ring 48, while the display means 5 comprising the geographical indications are provided on the outer screen 92 and are in this example fixed, a reverse arrangement (not shown) can be provided, in which the display means 3 are provided on the outer screen 92 and the means of display 5 on the inner rotating ring 48.

Claims (7)

Pièce d'horlogerie à affichage universel de l'heure comportant: - un mouvement horométrique (M) comportant au moins une minuterie (8,46), - au moins une aiguille des heures (4) qui est montée sur un canon des heures (4a) entraîné par la dite minuterie (8,46), - une bague rotative (48) entraînée par le canon des heures (4a) pour effectuer un tour par vingt-quatre heures, - un premiers moyen d'affichage (3) comportant un tour d'heures vingt-quatre heures,et - un second moyen d'affichage (5) comportant des indications géographiques indiquant respectivement divers fuseaux horaires, l'un (3) desdits moyens d'affichage étant ménagé sur la bague rotative (48) pour se déplacer en regard de l'autre (15) et pour fournir avec celui-ci ledit affichage universel de l'heure, caractérisée en ce qu'elle comporte un mécanisme de correction (MC) susceptible d'agir sur ladite aiguille des heures (4) indépendamment de l'entraînement de ladite bague rotative (48). Timepiece with universal time display comprising: - a horometric movement (M) comprising at least one timer (8,46), - at least one hour hand (4) which is mounted on an hour cannon (4a) driven by said timer (8,46), - a rotating ring (48) driven by the hour cannon (4a) to make one revolution per twenty-four hours, - a first display means (3) comprising a twenty-four hour clock, and - a second display means (5) comprising geographical indications respectively indicating various time zones, one (3) of said display means being arranged on the rotary ring (48) to move opposite the other ( 15) and to provide therewith said universal time display, characterized in that it comprises a correction mechanism (MC) capable of acting on said hour hand (4) independently of the training of said rotating ring (48). Pièce d'horlogerie selon la revendication 1, caractérisée en ce que ledit mécanisme de correction (MC) est interposé entre la minuterie (8,46) et un train d'entraînement (58) commandant la rotation de ladite bague rotativeTimepiece according to claim 1, characterized in that said correction mechanism (MC) is interposed between the timer (8,46) and a drive train (58) controlling the rotation of said rotary ring Pièce d'horlogerie selon la revendication 1 ou 2, caractérisée en ce que ledit mécanisme (MC) comporte deux roues extérieurement dentées (6,32) montées de façon coaxiale, la première (6) qui est en prise avec la minuterie (8,46) étant montée libre en rotation sur le canon des heures (4a), tandis qu'elle est conformée pour entraîner ladite bague rotative (48).Timepiece according to claim 1 or 2, characterized in that said mechanism (MC) comprises two externally toothed wheels (6,32) mounted coaxially, the first (6) which is engaged with the timer (8, 46) being mounted free in rotation on the hour barrel (4a), while it is shaped to drive said rotary ring (48). Pièce d'horlogerie selon l'une des revendications 1 à 3, caractérisée en ce qu'elle comporte un affichage des quantièmes (76), cet affichage étant piloté par une roue de correction (32) dudit mécanisme de correction, dite seconde roue.Timepiece according to one of claims 1 to 3, characterized in that it comprises a date display (76), this display being controlled by a correction wheel (32) of said correction mechanism, called the second wheel. Pièce d'horlogerie selon la revendication 4, caractérisée en ce que les première et seconde roues (6,32) du mécanisme de correction sont respectivement liées à la bague rotative (48) et à l'affichage des quantième (76), via un renvoi commun (82).Timepiece according to claim 4, characterized in that the first and second wheels (6,32) of the correction mechanism are respectively linked to the rotary ring (48) and to the date display (76), via a common reference (82). Pièce d'horlogerie selon la revendication 5, caractérisée en ce que ledit renvoi commun (82) comporte deux mobiles (84,94) imbriqués l'un dans l'autre et montés mobiles en rotation l'un par rapport à l'autre.Timepiece according to claim 5, characterized in that said common reference (82) comprises two mobiles (84, 94) nested one inside the other and mounted movable in rotation relative to one another. Pièce d'horlogerie selon la revendication 6, caractérisée en ce que l'un des mobiles (84) comporte un premier ensemble roue (88)-pignon (86) engrenant avec la roue des heures (6) du mécanisme de correction (MC) et avec la bague rotative (48), tandis que l'autre mobile (94) comporte un second ensemble roue (98)-pignon (96) engrenant avec la roue de correction (32) dudit mécanisme (MC) et avec l'affichage des quantièmes (76), le premier ensemble (86,88) étant monté fou sur un axe (90) du second ensemble (96,98), entre le pignon (96) et la roue (98) de celui-ci.Timepiece according to claim 6, characterized in that one of the mobiles (84) comprises a first wheel (88)-pinion (86) assembly meshing with the hour wheel (6) of the correction mechanism (MC) and with the rotary ring (48), while the other mobile (94) comprises a second wheel (98)-pinion (96) assembly meshing with the correction wheel (32) of said mechanism (MC) and with the display dates (76), the first assembly (86,88) being mounted idly on an axis (90) of the second assembly (96,98), between the pinion (96) and the wheel (98) thereof.
EP93110831A 1992-07-17 1993-07-07 Universal watch Expired - Lifetime EP0579093B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH2266/92A CH684619B5 (en) 1992-07-17 1992-07-17 Timepiece universal time display.
CH2266/92 1992-07-17

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EP0579093A1 true EP0579093A1 (en) 1994-01-19
EP0579093B1 EP0579093B1 (en) 1996-11-20

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JP (1) JP3316602B2 (en)
CN (1) CN1041244C (en)
CH (1) CH684619B5 (en)
DE (1) DE69306054T2 (en)
HK (1) HK1007604A1 (en)
SG (1) SG91236A1 (en)

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Also Published As

Publication number Publication date
CN1083229A (en) 1994-03-02
DE69306054D1 (en) 1997-01-02
CN1041244C (en) 1998-12-16
JPH06207989A (en) 1994-07-26
US5383165A (en) 1995-01-17
JP3316602B2 (en) 2002-08-19
DE69306054T2 (en) 1997-06-05
CH684619B5 (en) 1995-05-15
EP0579093B1 (en) 1996-11-20
SG91236A1 (en) 2002-09-17
HK1007604A1 (en) 1999-04-16
CH684619GA3 (en) 1994-11-15

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