EP1158374B1 - Calendar display mechanism - Google Patents

Calendar display mechanism Download PDF

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Publication number
EP1158374B1
EP1158374B1 EP00111224A EP00111224A EP1158374B1 EP 1158374 B1 EP1158374 B1 EP 1158374B1 EP 00111224 A EP00111224 A EP 00111224A EP 00111224 A EP00111224 A EP 00111224A EP 1158374 B1 EP1158374 B1 EP 1158374B1
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EP
European Patent Office
Prior art keywords
units
date
equal
tens
drive
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.)
Expired - Lifetime
Application number
EP00111224A
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German (de)
French (fr)
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EP1158374A1 (en
Inventor
M. Vincent Berard
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.)
Vaucher Manufacture Fleurier SA
Original Assignee
Vaucher Manufacture Fleurier SA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority to DE60040330T priority Critical patent/DE60040330D1/en
Application filed by Vaucher Manufacture Fleurier SA filed Critical Vaucher Manufacture Fleurier SA
Priority to EP00111224A priority patent/EP1158374B1/en
Priority to CNB018099505A priority patent/CN100367135C/en
Priority to JP2001586532A priority patent/JP4675540B2/en
Priority to PCT/IB2001/000814 priority patent/WO2001090825A1/en
Priority to US10/296,017 priority patent/US6711098B2/en
Priority to MYPI20012250A priority patent/MY127604A/en
Priority to TW090111817A priority patent/TW480373B/en
Publication of EP1158374A1 publication Critical patent/EP1158374A1/en
Priority to HK01108926A priority patent/HK1039379A1/en
Application granted granted Critical
Publication of EP1158374B1 publication Critical patent/EP1158374B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • G—PHYSICS
    • G04—HOROLOGY
    • G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
    • 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

Definitions

  • the present invention relates to date display devices for equipping timepieces of the type comprising a movement and hands driven by this movement and displaying the time.
  • One solution to this problem is to provide the device with first and second display members rotatably mounted on the movement, arranged under a dial provided with cutouts. These organs are respectively intended to display the units and tens of the date by means of numbers, visible through these cuts.
  • the device further comprises a movement-controlled drive and positioning mechanism arranged to blow one and / or the other of the organs once a day.
  • Such a device is, for example, described in the patent CH 310,559 .
  • This device is controlled by a clockwork movement, by means of a wheel performing a turn in 24 hours.
  • the latter causes 1 / 31st of a turn, and once a day, a mobile with two superimposed wheels.
  • the display members are formed of two disks arranged side by side, one displaying the tens of the date and the other the units, the current date appearing in a cutout of the dial.
  • the mobile and the disks are arranged so that, when the number of the units of the date displayed is equal to 0 or between 2 and 8, only the disk of the units is driven, when the number of the units is equal to 9, the units and tens disks are both driven, when the units digit equals 1 and the tens digit is 0, 1 or 2, only the drive disk is driven, and when the units digit equals 1 and the tens digit to 3, only the tens disk is driven.
  • Such a device makes it possible to display the date by means of large numbers.
  • EP 0 619 035 Another solution is described in the EP 0 619 035 . It relates to an electronic watch of analog type, in which the date is displayed by means of two needles. The first indicates the tens, in four positions making an angle of 90 ° between them, while the second displays the units, in ten positions equally distributed on a turn.
  • This solution can be considered only to the extent that numbers are in front of the position of the needles. This is necessary to enable reading because the hands do not occupy a usual position for a given value, as is the case with the display of the hour and the minute.
  • the purpose of the present invention is to allow a display of the calendar in a particularly readable manner while participating in the aesthetics of the room.
  • the display device which is intended to equip a timepiece of the type comprising a movement, a dial and hands, the latter being driven by the movement and displaying the time, comprises first and second display members, rotated by the movement, for respectively displaying the date units and tens, and a movement-controlled driving and positioning mechanism arranged to blow the one and / or the other display organs once a day.
  • the first member is mounted on the movement, pivoting about an axis which is perpendicular to it and carries an index, and in that the mechanism and the first member are arranged so that when the mechanism passes the display date units of a value n to n + 1, n being an integer between 1 and 9, the first member traverses, in the clockwise direction, an angle equal to 30 °, and that when n is equal to 1, the index is in a position corresponding to the position with respect to said dial, which would occupy an hour hand, pivoting about the axis of the first member, when it is one hour.
  • the mechanism and the first member are arranged so that the latter performs a jump of 90 ° when n is equal to 0, so that the index passes from the "nine o'clock position. "at the" noon "position, by the shortest way.
  • the first member is formed of a disc bearing the index and placed under the dial.
  • the latter comprises nine cuts arranged in a circular arc substantially concentric with the disc, the first cut occupying a position corresponding to "1 hour” and the following making an angle of 30 ° relative to each other, with reference to the central point of the arc, so that the last cut is in position "9 hours", all so that the index of the first member is visible through the cuts.
  • the second display member is also formed of a disk mounted pivotally on the movement and which carries three indexes arranged in an arc, and the dial comprises three cuts also arranged in an arc. and of the same radius as the arch formed by the indexes.
  • the tens display member and the drive and positioning mechanism are arranged so that zero, one, two or three indexes are visible through the three cutouts, depending on whether the tens number is equal to 0, 1, 2 or 3.
  • the mechanism and the display members are arranged so that, when the number of the units of the date is equal to 0 or between 2 and 8, only the disk of the units is driven, when the number of the units is equal to 9, the disks of the units and tens are both driven, when the number of the units is equal to 1 and the number of the units is tens to 0, 1 or 2, only the drive disk is driven, and when the units digit is 1 and the tens digit is 3, only the tens disk is driven.
  • the watches comprise, in a conventional manner, a dial 10 and, placed at the front of this dial, needles 12 and 14 respectively displaying the hours and minutes.
  • the watch is barrel-shaped. Its dial carries a 16-hour clock formed of numbers from 1 to 12, excluding 6. It is furthermore provided with a set of nine cutouts 20 intended to display the date units, and of a set of three cutouts 22 for displaying the tens of the date, respectively arranged on two concentric circles occupying the space between the center and the 6 o'clock position of the dial.
  • the display of the date is done by means of an index 24, intended to indicate the value of the units digit by its position and three indexes 26, intended to display the number of tens, the latter being equal to the number of visible indexes.
  • the cuts 20 define between them an angle of 30 °, the angle that the hour hand travels in one hour. In other words, if an hour hand were pivoted in the center of the concentric circles, it would be next to the first blank 20a at 1 o'clock, the second 20b at 2 o'clock, and so on.
  • the index 24 appears through one of the cutouts 20 and indicates the number of the date units by its position, it is equal to 3 on the figure 1 .
  • Two of the indexes 26 are visible through the first two cuts 22a and 22b, to signify that the tens digit is equal to 2. In other words, the current date is equal to 23.
  • the cutouts 20 are next to the digits 1 to 9 of the hour circle 16, the cut 20f, close to the number 6, flanking the index 24.
  • the units digit is therefore equal to 6.
  • the cutouts 22 are arranged in the zone between 11 hours and 1 hour, two indexes 26 appearing in the cutouts 22a and 22b.
  • the tens digit is therefore equal to 2.
  • the displayed date is equal to 26.
  • cutouts 20 and 22 are round. It is obvious that they can present other forms. So, in the case of the example of the figure 2 these cutouts could also, advantageously, have the shape of the digit corresponding to its position and, thus, replace the hour turn 16.
  • the figures 3 and 4 represent a watch movement, displaying the date according to the embodiment of the figure 1 , whose components occupy their position corresponding to the 29th of the month. These figures are distinguished by masking or tearing all or part of some parts.
  • the movement comprises a plate 28 on which is mounted a driving mechanism 30, and disks 32 and 34 concentric, represented in dotted line on the figure 3 and bearing respectively the index 24 and the three indexes 26, which are not shown in this figure.
  • the watch movement further comprises a time base and a gear train, which are not visible in the drawing, since they are on the other side of the plate 28, with the exception of the hour wheel 36 disposed at center of the movement and intended to carry the hour hand 12.
  • the mechanism 30 is connected to the hour wheel 36 by a "24 hours" wheel 38, rotating once a day and pivotally mounted on the plate 28, on a pin that is not visible in the drawing, and held axially by means of a screw 40.
  • a finger 42 coaxial with the wheel 38, is made integral, in rotation, with the wheel 38, by a pin 38a driven into the plate of the wheel 38 and resting against the finger 42.
  • the mechanism 30 comprises, distributed around the periphery of the plate and considered clockwise, from the "midi” position, a rocker 44 pivotally mounted and fixed in the vicinity of "noon” by means of a screw 46, a mobile date 48 disposed in the vicinity of "3 hours", a retrograde block tens placed at about “4 hours”, a mobile units 54 and a mobile 56 coaxial, and located at "6 o'clock", and a block of tens 52, which is in the vicinity of "8 hours”.
  • the latch 44 comprises a bulge 44a pierced with a hole in which the screw 46 is engaged. It is formed of first and second arms 44b and 44c, arranged on either side of the bulge 44a.
  • the arm 44b forms, at its free end, a finger 44d intended to cooperate with the block 52.
  • the second arm 44c is provided with a fork with two teeth 44e and 44f.
  • the tooth 44e ends with a finger 44g intended to cooperate with the mobile 48.
  • the tooth 44f comprises, in its median part, a lug 44h intended to cooperate with the calendar mobile 48. It forms, at its free end, a finger 44i intended to cooperate with the mobile unit 54 and carries, in addition, a drive lever 58.
  • the latter is pivotally mounted by means of a screw 60 and provided with a spring 58a bearing against a pin 62 disposed on the tooth 44f.
  • the spring 58a generates a force tending to apply the lever 58 against the mobile units 54, as will be specified below.
  • the latch 44 must be held in place so that it remains in a plane perpendicular to the pivot axis.
  • the arm 44b has a cutout 44k, in an arc, the center of which coincides with the axis of the screw 46; a span screw 64 is engaged therein and limits the axial displacements.
  • a latch spring 66 fixed by means of a screw 67 on the periphery of the plate, in the vicinity of "1 hour", cooperates with a pin 68 fixed on the tooth 44f and generates a torque tending to turn the latch 44 into meaning schedule. The latter is thus maintained in the rest position, as shown on the figures 3 and 4 the finger 44g being in abutment against the date mobile 48.
  • the date mobile 48 comprises, superimposed, a star with 31 teeth 70 and a cam 72, integral in rotation. It pivots on a tenon of the plate 28, not visible in the drawing, on which it is held axially by means of a screw 74.
  • the star 70 is provided with a toothing with a triangular profile, arranged in the same plane as the ergot 44h and on its course, so that every day at midnight, this pin advances, one step, the mobile 48. The latter thus performs one turn per month.
  • a jumper spring 76 fixed by means of a screw 78 on the periphery of the plate 28, in the vicinity of "2 hours", cooperates with the toothing of the star 70 to position the mobile 48.
  • the cam 72 has three radial levels, with three cutouts 72a, 72b and 72c defining a lower level, corresponding to the passages of the date to ten higher, a protrusion 72d defining a higher level and corresponding to the passage from 31 to the 1st of the month, and four surfaces in a 72th to 72h circle portion, disposed between the cutouts and the protuberance and defining an intermediate level, corresponding to the other days of the date. It is at the same level as the finger 44g and serves as a support for the rocker 44 in the rest position.
  • the retrograde block of tens 50 comprises a 31 teeth star 80 provided with a triangular profile toothing in engagement with the toothing of the star 70, and a cam 82 disposed over the star 80. Like the mobile 48, it therefore performs one round per month. It pivots on a tenon of the plate 28, not visible in the drawing, on which it is held axially by means of a screw 84 defining its pivot axis.
  • the cam 82 is formed of a spiral 86 and a finger 88 superimposed and secured to one another in rotation.
  • the spiral 86 has a cutout circular 90, in which is engaged a pin 92 integral with the star 80.
  • the pin 92 provides the connection between the star 80 and the cam 82, so that each time the star 80 advance, it causes with it, the cam 82. Because of the cut 90, in which is engaged the pin 92, the finger 88 and the spiral 86 may have a relative movement of about 45 °.
  • the retrograde block tens 50 cooperates with a jumper 94 and a whip 95, respectively fixed by means of screws 96 and 97, between "5 hours” and "6 hours".
  • the jumper 94 is engaged in the toothing of the star 80, to position it.
  • the whip 95 is in abutment against the spiral 86, to control the decline of tens, as will be explained later.
  • the tens block 52 comprises a star with ten teeth 98 and a cam 100.
  • the star 98 has a triangular toothing arranged at the same height as the finger 44d with which it cooperates, so as to advance one step each day . She thus makes a turn in ten days.
  • the block 52 is pivotally mounted on a tenon of the plate 28, not visible in the drawing, on which it is held axially by means of a screw 102.
  • the cam 100 is formed of a spiral 104 and a finger 106 superimposed and secured to one another in rotation.
  • the star 98 has a circular cutout 108, in which is engaged a pin 110 integral with the spiral 104.
  • the pin 110 provides the connection between the star 98 and the cam 100, so that, whenever the star In advance, it drives with it the cam 100. Because of the cut 108, in which the pin 110 is engaged, the finger 106 and the spiral 104 may have a relative movement of about 45 °.
  • the block of tens 52 cooperates with a jumper 112 and a whip 113, respectively fixed to the periphery of the plate, in the vicinity of "7 hours", by means of screws 114 and 115.
  • the jumper 112 is engaged in the teeth of the 'star 98 and intended to position it.
  • the whip 113 is in abutment against the spiral 104, to control the jump tens, as will be explained later.
  • FIGS. 5 and 6 show in detail the mobiles 54 and 56, as well as, on the figure 6 only the disks 32 and 34 respectively associated with them. More specifically, the figure 5 is a view from above and the figure 6 a section along line VI-VI of the figure 5 .
  • the mobiles 54 and 56 are coaxial, pivotally mounted on a post 116 driven into the plate 28. They are arranged so that they can freely rotate relative to each other. the other.
  • the mobile units 54 comprises a star with twelve teeth 118 and a spiral 120 superimposed, which are connected to each other and with the disk units 32, arranged over the spiral 120, by means of two screws 122.
  • the star 118 has a triangular profile toothing disposed in the same plane as the finger 44i and on its path, so as to be driven one step per day.
  • the spiral 120 is in the same plane as the drive lever 58, with which it cooperates at the end of each day whose date ends with "9", as will be explained later.
  • the star 118, the spiral 120 and the disc 32 are pierced with central holes, circular and of the same diameter, which together constitute a bearing 123.
  • the mobile tens 56 which carries the disc 34, is formed of a gun 124, pivotally mounted on the post 116, a twelve-toothed star 126, triangular profile, riveted to the barrel 124, and a rake 127, integral in rotation with the star 126.
  • the disk 34 comprises, on its lower face, a sleeve 34a engaged in the bearing 123.
  • the barrel 124 comprises three cylindrical portion 124a, 124b and 124c.
  • the portion 124a adjacent to the plate 28, carries the star 126.
  • the portion 124b intermediate and larger diameter is pivotal to the bearing 123. It is of the same diameter as the sleeve 34a.
  • the portion 124c is driven into the bush 34a, to rigidly attach to each other the disc 34 and the mobile 56, the assembly formed by the disc 32 and the mobile 54 being trapped therein.
  • a spring 128 and a jumper 129 cooperate with the mobile 56. They are respectively fixed to the periphery of the plate by means of screws 130 and 131, the spring 128 in the vicinity of "4 hours", the jumper 129 in the vicinity of " 7 hours”.
  • the star 126 carries a pin 132, disposed at the same height as the spring 128 and resting against its end 128a.
  • a pin 134, driven into the plate 28 serves as a stop rake 127 when it reaches the end of the race.
  • the jumper 129 is engaged in the toothing of the star 126. It is extended by a rod 129a which is in the space swept by the finger 88.
  • the jumper 136 is fixed to the plate 28 by means of a screw 138 disposed in the vicinity of 6 hours.
  • the mechanism 30, as just described, comprises three operating sequences, defined by the initial position of the rocker 44, bearing against the cam 72.
  • the "24 hours" wheel 38 rotates freely, driving the finger 42, via the pin 38a. Meanwhile, the latch 44 is in the rest position, defined by the support of the finger 44g against the cam 72. The mechanism 30 is then stationary.
  • the finger 42 comes into contact with the rocker 44, bearing in the area of duplication of the arm 44c, and more particularly on the wall of the tooth 44f.
  • the rocker then pivots slowly in 44a, counterclockwise, arming the spring 66, so that it exerts a force of feedback on the finger 42.
  • the disc 32 Since the disc 32 is integral in rotation with the star 118, it follows that the index 24, carried by the disc 32, passes from one cutout 20 to the other at a rate of one step per day, up to to reach the cutout 20i, located at 9 o'clock, and which indicates that the units of the date are equal to 9.
  • the feedback force After the feedback force has exceeded the axis of the screw 40, it generates a torque on the finger 42 tending to move away from the pin 38a.
  • the latch 44 then rotates clockwise, driven by the force exerted by the spring 66, until the finger 44g resumes contact with the cam 72. If the next day's date is different from 9, 19, 29 or 31, the finger comes to bear in the middle part of the cam 72. In this way, some 20 hours later, the same sequence is reproduced.
  • the finger 44g engages in one of the lower cutouts 72a, 72b or 72c. Furthermore, the mobile unit 54 has rotated so that the drive lever 58 hooks on the connection plane 120a of both ends of the spiral spiral 120.
  • the lug 44h causes, as explained above, the toothing of the star 70, while the finger 44d advances the toothing of the star 98 of a step also, and with it, the cam 100.
  • the latter is arranged so that the whip 113 then protrudes from the outer end of the spiral 104 and causes the cam 100 to move suddenly, so that the finger 106 drives a tooth of the rake 127. thus advance one step and an additional index 26 is visible through the cuts of tens 22.
  • the latch 44 drops and comes to bear on a middle portion of the cam 72.
  • the operation corresponds to what has been described above.
  • the device according to the invention can, of course, be the subject of numerous variants.
  • a fast correction mechanism conventionally controlled by a time-setting rod.
  • the month may be indicated by another index, advantageously less apparent than the index of the first organ, moving next to the circle of hours. In this way, this other index would be next to 1 in January, 2 in February, etc.

Description

La présente invention se rapporte aux dispositifs d'affichage de quantième destinés à équiper les pièces d'horlogerie du type comprenant un mouvement et des aiguilles entraînées par ce mouvement et affichant l'heure.The present invention relates to date display devices for equipping timepieces of the type comprising a movement and hands driven by this movement and displaying the time.

Dans les premières montres de ce type, le quantième était affiché par une aiguille supplémentaire faisant un tour en 31 jours. L'une d'elle, datant du 18ème siècle, est décrite en page 156 du catalogue d'oeuvres choisies du Musée international d'horlogerie à La Chaux-de-Fonds (ISBN 2-940088-07-1). Il s'agissait donc d'un affichage de type analogique. Une telle solution est simple, mais de lecture approximative, car l'angle que parcourt chaque jour cette aiguille est insuffisant pour permettre, en un coup d'oeil, de différencier deux positions voisines.In the first watches of this type, the date was displayed by an additional hand taking a turn in 31 days. One of them, dating from the 18th century, is described on page 156 of the catalog of selected works of the International Watchmaking Museum in La Chaux-de-Fonds (ISBN 2-940088-07-1). It was therefore an analog type display. Such a solution is simple, but approximate reading, because the angle that travels every day this needle is insufficient to allow, at a glance, to differentiate two neighboring positions.

Dans la plupart des montres actuellement commercialisées, par exemple celles représentées en page 281 du catalogue mentionné plus haut, l'affichage se fait de manière numérique, au moyen d'un disque portant les nombres de 1 à 31 et sautant chaque jour. Le quantième apparaît dans un guichet pratiqué dans le cadran. Les chiffres affichant cette information sont obligatoirement de petites dimensions, donc peu lisibles.In most watches currently marketed, for example those shown on page 281 of the catalog mentioned above, the display is done numerically, using a disc bearing the numbers from 1 to 31 and jumping each day. The date appears in a window practiced in the dial. The figures displaying this information are necessarily small, and therefore not very readable.

Une solution à ce problème consiste à munir le dispositif de premier et deuxième organes d'affichage montés mobiles en rotation sur le mouvement, disposés sous un cadran muni de découpes. Ces organes sont respectivement destinés à afficher les unités et les dizaines du quantième au moyen de chiffres, visibles au travers de ces découpes. Le dispositif comporte, en outre, un mécanisme d'entraînement et de positionnement commandé par le mouvement et agencé de manière à faire sauter l'un et/ou l'autre des organes une fois par jour.One solution to this problem is to provide the device with first and second display members rotatably mounted on the movement, arranged under a dial provided with cutouts. These organs are respectively intended to display the units and tens of the date by means of numbers, visible through these cuts. The device further comprises a movement-controlled drive and positioning mechanism arranged to blow one and / or the other of the organs once a day.

Un tel dispositif est, par exemple, décrit dans le brevet CH 310 559 . Ce dispositif est commandé par un mouvement d'horlogerie, au moyen d'une roue effectuant un tour en 24 heures. Cette dernière entraîne de 1/31ème de tour, et une fois par jour, un mobile comportant deux roues superposées. Les organes d'affichage sont formés de deux disques disposés côte à côte, l'un affichant les dizaines du quantième et l'autre les unités, le quantième courant apparaissant dans une découpe du cadran.Such a device is, for example, described in the patent CH 310,559 . This device is controlled by a clockwork movement, by means of a wheel performing a turn in 24 hours. The latter causes 1 / 31st of a turn, and once a day, a mobile with two superimposed wheels. The display members are formed of two disks arranged side by side, one displaying the tens of the date and the other the units, the current date appearing in a cutout of the dial.

Le mobile et les disques sont agencés de manière à ce que, lorsque le chiffre des unités du quantième affiché est égal à 0 ou compris entre 2 et 8, seul le disque des unités est entraîné, lorsque le chiffre des unités est égal à 9, les disques des unités et des dizaines sont tous deux entraînés, lorsque le chiffre des unités est égal à 1 et le chiffre des dizaines à 0, 1 ou 2, seul le disque des unités est entraîné, et lorsque le chiffre des unités est égal à 1 et le chiffre des dizaines à 3, seul le disque des dizaines est entraîné. Un tel dispositif permet d'afficher le quantième au moyen de chiffres de grandes dimensions.The mobile and the disks are arranged so that, when the number of the units of the date displayed is equal to 0 or between 2 and 8, only the disk of the units is driven, when the number of the units is equal to 9, the units and tens disks are both driven, when the units digit equals 1 and the tens digit is 0, 1 or 2, only the drive disk is driven, and when the units digit equals 1 and the tens digit to 3, only the tens disk is driven. Such a device makes it possible to display the date by means of large numbers.

Il est évident que le quantième est d'autant plus lisible, mais aussi plus inesthétique, qu'il est apparent, les chiffres chargeant le cadran.It is obvious that the date is all the more readable, but also more unsightly, than it is apparent, the figures loading the dial.

Une autre solution est décrite dans le brevet EP 0 619 035 . Elle se rapporte à une montre électronique de type analogique, dans laquelle le quantième est affiché au moyen de deux aiguilles. La première indique les dizaines, dans quatre positions faisant un angle de 90° entre elles, alors que la deuxième affiche les unités, dans dix positions réparties également sur un tour.Another solution is described in the EP 0 619 035 . It relates to an electronic watch of analog type, in which the date is displayed by means of two needles. The first indicates the tens, in four positions making an angle of 90 ° between them, while the second displays the units, in ten positions equally distributed on a turn.

Cette solution ne peut être envisagée que dans la mesure où des chiffres se trouvent en face de la position des aiguilles. Cela est nécessaire pour permettre la lecture, car les aiguilles n'occupent pas une position habituelle pour une valeur donnée, comme c'est le cas de l'affichage de l'heure et de la minute.This solution can be considered only to the extent that numbers are in front of the position of the needles. This is necessary to enable reading because the hands do not occupy a usual position for a given value, as is the case with the display of the hour and the minute.

Cette solution charge donc considérablement le cadran, sans pour autant proposer une lecture simple.This solution therefore considerably loads the dial, without offering a simple reading.

Le but de la présente invention est de permettre un affichage du quantième de manière particulièrement lisible tout en participant à l'esthétique de la pièce.The purpose of the present invention is to allow a display of the calendar in a particularly readable manner while participating in the aesthetics of the room.

A cet effet, le dispositif d'affichage selon l'invention, qui est destiné à équiper une pièce d'horlogerie du type comprenant un mouvement, un cadran et des aiguilles, ces dernières étant entraînées par le mouvement et affichant l'heure, comporte des premier et deuxième organes d'affichage, entraînés en rotation par le mouvement, destinés à afficher respectivement les unités et les dizaines du quantième, et un mécanisme d'entraînement et de positionnement commandé par le mouvement et agencé de manière à faire sauter l'un et/ou l'autre des organes d'affichage une fois par jour. Le premier organe est monté sur le mouvement, pivotant autour d'un axe qui lui est perpendiculaire et porte un index, et en ce que le mécanisme et le premier organe sont agencés de manière à ce que, lorsque le mécanisme fait passer l'affichage des unités du quantième d'une valeur n à n+1, n étant un nombre entier compris entre 1 et 9, le premier organe parcourt, dans le sens horaire, un angle égal à 30°, et que, lorsque n est égal à 1, l'index se trouve dans une position correspondant à la position par rapport audit cadran, qu'occuperait une aiguilles des heures, pivotant autour de l'axe du premier organe, lorsqu'il est une heure.For this purpose, the display device according to the invention, which is intended to equip a timepiece of the type comprising a movement, a dial and hands, the latter being driven by the movement and displaying the time, comprises first and second display members, rotated by the movement, for respectively displaying the date units and tens, and a movement-controlled driving and positioning mechanism arranged to blow the one and / or the other display organs once a day. The first member is mounted on the movement, pivoting about an axis which is perpendicular to it and carries an index, and in that the mechanism and the first member are arranged so that when the mechanism passes the display date units of a value n to n + 1, n being an integer between 1 and 9, the first member traverses, in the clockwise direction, an angle equal to 30 °, and that when n is equal to 1, the index is in a position corresponding to the position with respect to said dial, which would occupy an hour hand, pivoting about the axis of the first member, when it is one hour.

Pour assurer le passage de 9 à 0, le mécanisme et le premier organe sont agencés de manière à ce que ce dernier effectue un saut de 90° lorsque n est égal à 0, de sorte que l'index passe de la position "neuf heures" à la position "midi", par le plus court chemin.To ensure the passage from 9 to 0, the mechanism and the first member are arranged so that the latter performs a jump of 90 ° when n is equal to 0, so that the index passes from the "nine o'clock position. "at the" noon "position, by the shortest way.

Dans un mode de réalisation particulièrement avantageux, le premier organe est formé d'un disque, portant l'index, et placé sous le cadran. Ce dernier comporte neuf découpes disposées en un arc de cercle sensiblement concentrique au disque, la première découpe occupant une position correspondant à "1 heure" et les suivantes faisant un angle de 30° les unes par rapport aux autres, en référence au point central de l'arc de cercle, de manière à ce que la dernière découpe se trouve en position "9 heures", le tout de façon que l'index du premier organe soit visible au travers des découpes.In a particularly advantageous embodiment, the first member is formed of a disc bearing the index and placed under the dial. The latter comprises nine cuts arranged in a circular arc substantially concentric with the disc, the first cut occupying a position corresponding to "1 hour" and the following making an angle of 30 ° relative to each other, with reference to the central point of the arc, so that the last cut is in position "9 hours", all so that the index of the first member is visible through the cuts.

Si, pour afficher les unités, il est apparu intéressant d'utiliser un index dont la position correspond à celle d'une aiguille des heures, la situation est différente pour l'indication des dizaines. En effet, la perception d'un nombre d'objets compris entre 0 et 3 se fait sans problème et du premier coup d'oeil. C'est pourquoi, de façon avantageuse, le second organe d'affichage est également formé d'un disque monté pivotant sur le mouvement et qui porte trois index disposés en arc de cercle, et le cadran comprend trois découpes également disposées en arc de cercle et de même rayon que l'arc que forment les index. En outre, l'organe d'affichage des dizaines et le mécanisme d'entraînement et de positionnement sont agencés de manière à ce que zéro, un, deux ou les trois index sont visibles au travers des trois découpes, selon que le chiffre des dizaines est égal à 0, 1, 2 ou 3.If, to display the units, it appeared interesting to use an index whose position corresponds to that of an hour hand, the situation is different for the indication of tens. Indeed, the perception of a number of objects between 0 and 3 is without problem and at first glance. This is why, advantageously, the second display member is also formed of a disk mounted pivotally on the movement and which carries three indexes arranged in an arc, and the dial comprises three cuts also arranged in an arc. and of the same radius as the arch formed by the indexes. In addition, the tens display member and the drive and positioning mechanism are arranged so that zero, one, two or three indexes are visible through the three cutouts, depending on whether the tens number is equal to 0, 1, 2 or 3.

Un affichage esthétique nécessite un positionnement précis des disques, C'est pourquoi il est avantageux que le mécanisme comporte deux étoiles à douze dents, respectivement solidaires des premier et des deuxième organes et coopérant chacune avec un sautoir pour la positionner.An aesthetic display requires precise positioning of the disks, which is why it is advantageous for the mechanism to comprise two twelve-toothed stars respectively integral with the first and second members and each cooperating with a jumper to position it.

Pour permettre un entraînement optimum et ne nécessitant de correction que pour les mois de moins de 31 jours, le mécanisme et les organes d'affichage sont agencés de manière à ce que, lorsque le chiffre des unités du quantième est égal à 0 ou compris entre 2 et 8, seul le disque des unités est entraîné, lorsque le chiffre des unités est égal à 9, les disques des unités et des dizaines sont tous deux entraînés, lorsque le chiffre des unités est égal à 1 et le chiffre des dizaines à 0, 1 ou 2, seul le disque des unités est entraîné, et lorsque le chiffre des unités est égal à 1 et le chiffre des dizaines à 3, seul le disque des dizaines est entraîné.To allow optimum training and requiring correction only for months of less than 31 days, the mechanism and the display members are arranged so that, when the number of the units of the date is equal to 0 or between 2 and 8, only the disk of the units is driven, when the number of the units is equal to 9, the disks of the units and tens are both driven, when the number of the units is equal to 1 and the number of the units is tens to 0, 1 or 2, only the drive disk is driven, and when the units digit is 1 and the tens digit is 3, only the tens disk is driven.

Pour assurer un entraînement optimal du dispositif, le mécanisme comporte, en outre:

  • une roue "24 heures", effectuant un tour par jour, entraînée par ledit mouvement, et portant un doigt d'entraînement,
  • une bascule, montée pivotante sur le mouvement, activée par ledit doigt d'entraînement et coopérant avec un ressort de rappel, munie de premiers, deuxièmes, troisièmes et quatrièmes moyens d'entraînement et de moyens de positionnement, les premiers moyens d'entraînement coopérant avec l'étoile à douze dents solidaire du premier organe et la faisant avancer de un pas chaque jour,
  • un mobile de quantième comportant une étoile de quantième, de 31 dents, effectuant un pas par jour sous l'action des deuxièmes moyens d'entraînement, et une came des jours, coopérant avec les moyens de positionnement de la bascule et définissant trois niveaux, le premier niveau, supérieur, correspondant à la position qu'occupe le mobile de quantième le 31 du mois, le deuxième niveau, médian, correspondant aux positions qu'occupe le mobile de quantième lorsque le chiffre des unités du quantième est égal à zéro, ou compris entre 2 et 8, ou encore que le chiffre des unités est égal à 1 et le chiffre des dizaines à 0, 1 ou 2, et le troisième niveau, inférieur, correspondant à la position qu'occupe le mobile de quantième lorsque le chiffre des unités est égal à 9,
  • un fouet d'entraînement de l'étoile à douze dents solidaire du deuxième organe, muni d'une étoile à dix dents et entraîné de un pas par jour par les troisièmes moyens d'entraînement de la bascule, à l'exception du jour
  • où les moyens de positionnement sont en appui sur le niveau supérieur de la came, et agencé de manière que le fouet est libéré lorsque le chiffre des unités du quantième est égal à 9,
  • un bloc rétrograde des dizaines comportant une étoile à 31 dents, reliée cinématiquement avec l'étoile à 31 dents du mobile de quantième, libéré lorsque les moyens de positionnement de la bascule sont en appui sur le niveau supérieur de ladite came,
  • un ressort de rappel du deuxième organe, armé chaque fois que le fouet d'entraînement fait avancer le deuxième organe et désarmé lorsque le bloc rétrograde est libéré, et
  • une bascule d'entraînement, solidaire en rotation du premier organe et coopérant avec les quatrièmes moyens d'entraînement, pour faire avancer de trois pas l'étoile à douze dents solidaire du premier organe chaque fois que les moyens de positionnement de la bascule sont en appui sur le niveau inférieur de la came.
To ensure optimal drive of the device, the mechanism further comprises:
  • a wheel "24 hours", performing one turn per day, driven by said movement, and carrying a drive finger,
  • a rocker, pivotally mounted on the movement, activated by said drive finger and cooperating with a return spring, provided with first, second, third and fourth drive means and positioning means, the first cooperating driving means with the star with twelve teeth attached to the first organ and advancing it one step every day,
  • a date mobile comprising a 31-tooth date star, taking one step per day under the action of the second drive means, and a day cam, cooperating with the positioning means of the rocker and defining three levels, the first level, higher, corresponding to the position occupied by the calendar mobile on the 31st of the month, the second median level, corresponding to the positions occupied by the date mobile when the date units' number is equal to zero, or between 2 and 8, or that the number of units is equal to 1 and the number of tens to 0, 1 or 2, and the third level, lower, corresponding to the position occupied by the mobile date when the number of units is equal to 9,
  • a driving whip of the star with twelve teeth integral with the second member, provided with a star with ten teeth and driven one step per day by the third driving means of the rocker, except the day
  • where the positioning means bear on the upper level of the cam, and arranged so that the whip is released when the number of the date units is equal to 9,
  • a retrograde block of tens comprising a 31-tooth star, kinematically connected to the 31-tooth star of the date mobile, released when the positioning means of the rocker are resting on the upper level of said cam,
  • a return spring of the second member, armed each time the driving whip advances the second member and disarmed when the retrograde block is released, and
  • a drive rocker, integral in rotation with the first member and cooperating with the fourth drive means, to advance three steps the star with twelve teeth secured to the first member each time the positioning means of the rocker are in press on the lower level of the cam.

D'autres avantages et caractéristiques de l'invention ressortiront de la description qui va suivre, faite en regard du dessin annexé, dans lequel:

  • Les figures 1 et 2 représentent deux variantes de disposition des organes d'affichage,
  • Les figures 3 et 4 montrent le mécanisme d'entraînement pour un affichage du 29 du mois, certaines pièces ayant été enlevées sur la figure 4, pour faciliter la compréhension de l'invention, et
  • Les figures 5 et 6 sont respectivement des vues en plan et en coupe d'une partie de ce mécanisme.
Other advantages and features of the invention will emerge from the description which follows, given with reference to the appended drawing, in which:
  • The figures 1 and 2 represent two variants of layout of the display members,
  • The figures 3 and 4 show the drive mechanism for a display of the 29th of the month, some parts having been removed on the figure 4 , to facilitate understanding of the invention, and
  • The Figures 5 and 6 are respectively plan and sectional views of part of this mechanism.

Les montres, représentées schématiquement aux figures 1 et 2, comportent, de manière classique, un cadran 10 et, placé à l'avant de ce cadran, des aiguilles 12 et 14 affichant respectivement les heures et les minutes.The watches, schematically represented figures 1 and 2 , comprise, in a conventional manner, a dial 10 and, placed at the front of this dial, needles 12 and 14 respectively displaying the hours and minutes.

Sur la figure 1, la montre est de forme tonneau. Son cadran porte un tour d'heures 16 formé des nombres de 1 à 12, à l'exclusion du 6. Il est, en outre, muni d'un ensemble de neuf découpes 20 destinées à afficher les unités de quantième, et d'un ensemble de trois découpes 22 pour l'affichage des dizaines du quantième, respectivement disposés sur deux cercles concentriques occupant l'espace compris entre le centre et la position 6 heures du cadran.On the figure 1 , the watch is barrel-shaped. Its dial carries a 16-hour clock formed of numbers from 1 to 12, excluding 6. It is furthermore provided with a set of nine cutouts 20 intended to display the date units, and of a set of three cutouts 22 for displaying the tens of the date, respectively arranged on two concentric circles occupying the space between the center and the 6 o'clock position of the dial.

Dans cette montre, l'affichage du quantième se fait au moyen d'un index 24, destiné à indiquer la valeur du chiffre des unités par sa position et de trois index 26, destinés à afficher le chiffre des dizaines, celui-ci étant égal au nombre d'index visibles.In this watch, the display of the date is done by means of an index 24, intended to indicate the value of the units digit by its position and three indexes 26, intended to display the number of tens, the latter being equal to the number of visible indexes.

Les découpes 20 définissent entre elles un angle de 30°, soit l'angle que parcourt l'aiguille des heures en une heure. En d'autres termes, si une aiguille des heures pivotait au centre des cercles concentriques, elle se trouverait, en regard de la première découpe 20a, à 1 heure, de la deuxième 20b, à 2 heures, etc.The cuts 20 define between them an angle of 30 °, the angle that the hour hand travels in one hour. In other words, if an hour hand were pivoted in the center of the concentric circles, it would be next to the first blank 20a at 1 o'clock, the second 20b at 2 o'clock, and so on.

L'index 24 apparaît au travers de l'une des découpes 20 et indique le chiffre des unités de quantième par sa position, celui-ci est égal à 3 sur la figure 1. Deux des index 26 sont visibles au travers des deux premières découpes 22a et 22b, pour signifier que le chiffre des dizaines est égal à 2. En d'autres termes, le quantième courant est égal à 23.The index 24 appears through one of the cutouts 20 and indicates the number of the date units by its position, it is equal to 3 on the figure 1 . Two of the indexes 26 are visible through the first two cuts 22a and 22b, to signify that the tens digit is equal to 2. In other words, the current date is equal to 23.

Dans le mode de réalisation de la figure 2, les découpes 20 se trouvent en regard des chiffres 1 à 9 du tour d'heures 16, la découpe 20f, voisine du chiffre 6, encadrant l'index 24. Le chiffre des unités est donc égal à 6.In the embodiment of the figure 2 , the cutouts 20 are next to the digits 1 to 9 of the hour circle 16, the cut 20f, close to the number 6, flanking the index 24. The units digit is therefore equal to 6.

Les découpes 22 sont disposées dans la zone comprise entre 11 heures et 1 heure, deux index 26 apparaissant dans les découpes 22a et 22b. Le chiffre des dizaines est donc égal à 2. Dans ce cas, le quantième affiché est donc égal à 26.The cutouts 22 are arranged in the zone between 11 hours and 1 hour, two indexes 26 appearing in the cutouts 22a and 22b. The tens digit is therefore equal to 2. In this case, the displayed date is equal to 26.

Dans les deux exemples décrits ci-dessus, les découpes 20 et 22 sont rondes. Il est bien évident qu'elles peuvent présenter d'autres formes. Ainsi, dans le cas de l'exemple de la figure 2, ces découpes pourraient aussi, avantageusement, avoir la forme du chiffre correspondant à sa position et, ainsi, remplacer le tour d'heures 16.In the two examples described above, the cutouts 20 and 22 are round. It is obvious that they can present other forms. So, in the case of the example of the figure 2 these cutouts could also, advantageously, have the shape of the digit corresponding to its position and, thus, replace the hour turn 16.

Les figures 3 et 4 représentent un mouvement de montre, affichant le quantième selon le mode de réalisation de la figure 1, dont les composants occupent leur position correspondant au 29 du mois. Ces figures se différencient par le masquage ou l'arrachage de tout ou partie de certaines pièces.The figures 3 and 4 represent a watch movement, displaying the date according to the embodiment of the figure 1 , whose components occupy their position corresponding to the 29th of the month. These figures are distinguished by masking or tearing all or part of some parts.

Le mouvement comporte une platine 28 sur laquelle est monté un mécanisme d'entraînement 30, et des disques 32 et 34 concentriques, représentés en pointillé sur la figure 3 et portant respectivement l'index 24 et les trois index 26, qui ne sont pas représentés sur cette figure.The movement comprises a plate 28 on which is mounted a driving mechanism 30, and disks 32 and 34 concentric, represented in dotted line on the figure 3 and bearing respectively the index 24 and the three indexes 26, which are not shown in this figure.

Le mouvement de montre comporte, en outre, une base de temps et un rouage, qui ne sont pas visibles au dessin, car se trouvant de l'autre côté de la platine 28, à l'exception de la roue des heures 36 disposée au centre du mouvement et destiné à porter l'aiguille des heures 12.The watch movement further comprises a time base and a gear train, which are not visible in the drawing, since they are on the other side of the plate 28, with the exception of the hour wheel 36 disposed at center of the movement and intended to carry the hour hand 12.

Le mécanisme 30 est relié à la roue des heures 36 par une roue "24 heures" 38, effectuant un tour par jour et montée pivotante sur la platine 28, sur un tenon non visible au dessin, et maintenue axialement au moyen d'une vis 40. Un doigt 42, coaxial à la roue 38, est rendu solidaire, en rotation, de la roue 38, par une goupille 38a chassée dans la planche de la roue 38 et en appui contre le doigt 42.The mechanism 30 is connected to the hour wheel 36 by a "24 hours" wheel 38, rotating once a day and pivotally mounted on the plate 28, on a pin that is not visible in the drawing, and held axially by means of a screw 40. A finger 42, coaxial with the wheel 38, is made integral, in rotation, with the wheel 38, by a pin 38a driven into the plate of the wheel 38 and resting against the finger 42.

Le mécanisme 30 comporte, répartis sur le pourtour de la platine et considérés dans le sens horaire, à partir de la position "midi", une bascule 44 montée pivotante et fixée au voisinage de "midi" au moyen d'une vis 46, un mobile de quantième 48 disposé au voisinage de "3 heures", un bloc rétrograde des dizaines 50 placé aux environ de "4 heures", un mobile des unités 54 et un mobile des dizaines 56, coaxiaux et situés à "6 heures", et un bloc des dizaines 52, qui se trouve au voisinage de "8 heures".The mechanism 30 comprises, distributed around the periphery of the plate and considered clockwise, from the "midi" position, a rocker 44 pivotally mounted and fixed in the vicinity of "noon" by means of a screw 46, a mobile date 48 disposed in the vicinity of "3 hours", a retrograde block tens placed at about "4 hours", a mobile units 54 and a mobile 56 coaxial, and located at "6 o'clock", and a block of tens 52, which is in the vicinity of "8 hours".

Plus précisément, la bascule 44 comporte un renflement 44a percé d'un trou dans lequel la vis 46 est engagée. Elle est formée de premier et second bras 44b et 44c, disposés de part et d'autre du renflement 44a. Le bras 44b forme, à son extrémité libre, un doigt 44d destiné à coopérer avec le bloc 52.More specifically, the latch 44 comprises a bulge 44a pierced with a hole in which the screw 46 is engaged. It is formed of first and second arms 44b and 44c, arranged on either side of the bulge 44a. The arm 44b forms, at its free end, a finger 44d intended to cooperate with the block 52.

Le second bras 44c est muni d'une fourche à deux dents 44e et 44f. La dent 44e se termine par un doigt 44g destiné à coopérer avec le mobile 48. La dent 44f comporte, dans sa partie médiane, un ergot 44h destiné à coopérer avec le mobile de quantième 48. Elle forme, à son extrémité libre, un doigt 44i destiné à coopérer avec le mobile des unités 54 et porte, en outre, un levier d'entraînement 58. Ce dernier est monté pivotant au moyen d'une vis 60 et muni d'un ressort 58a en appui contre une goupille 62 disposée sur la dent 44f. Le ressort 58a engendre une force tendant à appliquer le levier 58 contre le mobile des unités 54, comme cela sera précisé plus loin.The second arm 44c is provided with a fork with two teeth 44e and 44f. The tooth 44e ends with a finger 44g intended to cooperate with the mobile 48. The tooth 44f comprises, in its median part, a lug 44h intended to cooperate with the calendar mobile 48. It forms, at its free end, a finger 44i intended to cooperate with the mobile unit 54 and carries, in addition, a drive lever 58. The latter is pivotally mounted by means of a screw 60 and provided with a spring 58a bearing against a pin 62 disposed on the tooth 44f. The spring 58a generates a force tending to apply the lever 58 against the mobile units 54, as will be specified below.

La bascule 44 doit être maintenue en place de façon qu'elle reste dans un plan perpendiculaire à l'axe de pivotement. A cet effet, le bras 44b comporte une découpe 44k, en arc de cercle, dont le centre coïncide avec l'axe de la vis 46; une vis à portée 64 y est engagée et limite les déplacements axiaux.The latch 44 must be held in place so that it remains in a plane perpendicular to the pivot axis. For this purpose, the arm 44b has a cutout 44k, in an arc, the center of which coincides with the axis of the screw 46; a span screw 64 is engaged therein and limits the axial displacements.

Un ressort de bascule 66, fixé au moyen d'une vis 67 sur la périphérie de la platine, au voisinage de "1heure", coopère avec une goupille 68 fixée sur la dent 44f et génère un couple tendant à faire tourner la bascule 44 dans le sens horaire. Cette dernière est ainsi maintenue en position de repos, comme représenté sur les figures 3 et 4, le doigt 44g étant en appui contre le mobile de quantième 48.A latch spring 66, fixed by means of a screw 67 on the periphery of the plate, in the vicinity of "1 hour", cooperates with a pin 68 fixed on the tooth 44f and generates a torque tending to turn the latch 44 into meaning schedule. The latter is thus maintained in the rest position, as shown on the figures 3 and 4 the finger 44g being in abutment against the date mobile 48.

Le mobile de quantième 48 comporte, superposées, une étoile à 31 dents 70 et une came 72, solidaires en rotation. Il pivote sur un tenon de la platine 28, non visible au dessin, sur lequel il est maintenu axialement au moyen d'une vis 74. L'étoile 70 est munie d'une denture à profil triangulaire, disposée dans le même plan que l'ergot 44h et sur son parcours, de sorte que, chaque jour à minuit, cet ergot fait avancer, de un pas, le mobile 48. Ce dernier effectue donc un tour par mois. Un ressort sautoir 76, fixé au moyen d'une vis 78 sur la périphérie de la platine 28, au voisinage de "2 heures", coopère avec la denture de l'étoile 70 pour positionner le mobile 48.The date mobile 48 comprises, superimposed, a star with 31 teeth 70 and a cam 72, integral in rotation. It pivots on a tenon of the plate 28, not visible in the drawing, on which it is held axially by means of a screw 74. The star 70 is provided with a toothing with a triangular profile, arranged in the same plane as the ergot 44h and on its course, so that every day at midnight, this pin advances, one step, the mobile 48. The latter thus performs one turn per month. A jumper spring 76, fixed by means of a screw 78 on the periphery of the plate 28, in the vicinity of "2 hours", cooperates with the toothing of the star 70 to position the mobile 48.

La came 72 présente trois niveaux radiaux, avec trois découpes 72a, 72b et 72c définissant un niveau inférieur, correspondant aux passages du quantième à une dizaine supérieure, une protubérance 72d définissant un niveau supérieur et correspondant au passage du 31 au 1er du mois, et quatre surfaces en portion de cercle 72e à 72h, disposées entre les découpes et la protubérance et définissant un niveau intermédiaire, correspondant aux autres jours du quantième. Elle se trouve au même niveau que le doigt 44g et sert d'appui à la bascule 44 en position de repos.The cam 72 has three radial levels, with three cutouts 72a, 72b and 72c defining a lower level, corresponding to the passages of the date to ten higher, a protrusion 72d defining a higher level and corresponding to the passage from 31 to the 1st of the month, and four surfaces in a 72th to 72h circle portion, disposed between the cutouts and the protuberance and defining an intermediate level, corresponding to the other days of the date. It is at the same level as the finger 44g and serves as a support for the rocker 44 in the rest position.

Le bloc rétrograde des dizaines 50 comporte une étoile à 31 dents 80 munie d'une denture à profil triangulaire en prise avec la denture de l'étoile 70, et une came 82 disposée par dessus l'étoile 80. Comme le mobile 48, il effectue donc un tour par mois. Il pivote sur un tenon de la platine 28, non visible au dessin, sur lequel il est maintenu axialement au moyen d'une vis 84 définissant son axe de pivotement.The retrograde block of tens 50 comprises a 31 teeth star 80 provided with a triangular profile toothing in engagement with the toothing of the star 70, and a cam 82 disposed over the star 80. Like the mobile 48, it therefore performs one round per month. It pivots on a tenon of the plate 28, not visible in the drawing, on which it is held axially by means of a screw 84 defining its pivot axis.

La came 82 est formée d'un colimaçon 86 et d'un doigt 88 superposés et solidaires l'un de l'autre en rotation. Le colimaçon 86 comporte une découpe circulaire 90, dans laquelle est engagée une goupille 92 solidaire de l'étoile 80. La goupille 92 assure la liaison entre l'étoile 80 et la came 82, de manière à ce que, chaque fois que l'étoile 80 avance, elle entraîne, avec elle, la came 82. A cause de la découpe 90, dans laquelle est engagée la goupille 92, le doigt 88 et le colimaçon 86 peuvent avoir un mouvement relatif d'environ 45°.The cam 82 is formed of a spiral 86 and a finger 88 superimposed and secured to one another in rotation. The spiral 86 has a cutout circular 90, in which is engaged a pin 92 integral with the star 80. The pin 92 provides the connection between the star 80 and the cam 82, so that each time the star 80 advance, it causes with it, the cam 82. Because of the cut 90, in which is engaged the pin 92, the finger 88 and the spiral 86 may have a relative movement of about 45 °.

Le bloc rétrograde des dizaines 50 coopère avec un sautoir 94 et un fouet 95, fixés respectivement au moyen de vis 96 et 97, entre "5 heures" et "6 heures". Le sautoir 94 est engagé dans la denture de l'étoile 80, pour la positionner. Le fouet 95 est en appui contre le colimaçon 86, pour commander le recul des dizaines, comme cela sera expliqué plus loin.The retrograde block tens 50 cooperates with a jumper 94 and a whip 95, respectively fixed by means of screws 96 and 97, between "5 hours" and "6 hours". The jumper 94 is engaged in the toothing of the star 80, to position it. The whip 95 is in abutment against the spiral 86, to control the decline of tens, as will be explained later.

Le bloc des dizaines 52 comporte une étoile à dix dents 98 et une came 100. L'étoile 98 comporte une denture triangulaire disposée à la même hauteur que le doigt 44d avec lequel elle coopère, de manière à la faire avancer de un pas chaque jour. Elle effectue donc un tour en dix jours. Le bloc 52 est monté pivotant sur un tenon de la platine 28, non visible au dessin, sur lequel il est maintenu axialement au moyen d'une vis 102.The tens block 52 comprises a star with ten teeth 98 and a cam 100. The star 98 has a triangular toothing arranged at the same height as the finger 44d with which it cooperates, so as to advance one step each day . She thus makes a turn in ten days. The block 52 is pivotally mounted on a tenon of the plate 28, not visible in the drawing, on which it is held axially by means of a screw 102.

La came 100 est formée d'un colimaçon 104 et d'un doigt 106 superposés et solidaires l'un de l'autre en rotation. L'étoile 98 comporte une découpe circulaire 108, dans laquelle est engagée une goupille 110 solidaire du colimaçon 104. La goupille 110 assure la liaison entre l'étoile 98 et la came 100, de manière à ce que, chaque fois que l'étoile 98 avance, elle entraîne, avec elle, la came 100. A cause de la découpe 108, dans laquelle est engagée la goupille 110, le doigt 106 et le colimaçon 104 peuvent avoir un mouvement relatif d'environ 45°.The cam 100 is formed of a spiral 104 and a finger 106 superimposed and secured to one another in rotation. The star 98 has a circular cutout 108, in which is engaged a pin 110 integral with the spiral 104. The pin 110 provides the connection between the star 98 and the cam 100, so that, whenever the star In advance, it drives with it the cam 100. Because of the cut 108, in which the pin 110 is engaged, the finger 106 and the spiral 104 may have a relative movement of about 45 °.

Le bloc des dizaines 52 coopère avec un sautoir 112 et un fouet 113, fixés respectivement à la périphérie de la platine, au voisinage de "7 heures", au moyen de vis 114 et 115. Le sautoir 112 est engagé dans la denture de l'étoile 98 et destiné à la positionner. Le fouet 113 est en appui contre le colimaçon 104, pour commander le saut des dizaines, comme cela sera expliqué plus loin.The block of tens 52 cooperates with a jumper 112 and a whip 113, respectively fixed to the periphery of the plate, in the vicinity of "7 hours", by means of screws 114 and 115. The jumper 112 is engaged in the teeth of the 'star 98 and intended to position it. The whip 113 is in abutment against the spiral 104, to control the jump tens, as will be explained later.

Les figures 5 et 6 montrent, de manière détaillée, les mobiles 54 et 56, ainsi que, sur la figure 6 uniquement, les disques 32 et 34 qui leur sont respectivement associés. Plus précisément, la figure 5 est une vue de dessus et la figure 6 une coupe selon la ligne VI-VI de la figure 5.The Figures 5 and 6 show in detail the mobiles 54 and 56, as well as, on the figure 6 only the disks 32 and 34 respectively associated with them. More specifically, the figure 5 is a view from above and the figure 6 a section along line VI-VI of the figure 5 .

Ainsi qu'on peut le voir sur ces figures, les mobiles 54 et 56 sont coaxiaux, montés pivotant sur un tenon 116 chassé dans la platine 28. Ils sont agencés de manière à ce qu'ils puissent tourner librement l'un par rapport à l'autre.As can be seen in these figures, the mobiles 54 and 56 are coaxial, pivotally mounted on a post 116 driven into the plate 28. They are arranged so that they can freely rotate relative to each other. the other.

Plus précisément, le mobile des unités 54 comporte une étoile à douze dents 118 et un colimaçon 120 superposés, qui sont reliés l'un à l'autre et avec le disque des unités 32, disposé par-dessus le colimaçon 120, au moyen de deux tenons à vis 122.More specifically, the mobile units 54 comprises a star with twelve teeth 118 and a spiral 120 superimposed, which are connected to each other and with the disk units 32, arranged over the spiral 120, by means of two screws 122.

L'étoile 118 comporte une denture à profil triangulaire disposée dans le même plan que le doigt 44i et sur son parcours, de manière à être entraînée de un pas par jour.The star 118 has a triangular profile toothing disposed in the same plane as the finger 44i and on its path, so as to be driven one step per day.

Le colimaçon 120 se trouve dans le même plan que le levier d'entraînement 58, avec lequel il coopère à la fin de chaque jour dont le quantième se termine par "9", comme cela sera expliqué plus loin.The spiral 120 is in the same plane as the drive lever 58, with which it cooperates at the end of each day whose date ends with "9", as will be explained later.

L'étoile 118, le colimaçon 120 et le disque 32 sont percés de trous centraux, circulaires et de même diamètre, qui constituent ensemble un palier 123.The star 118, the spiral 120 and the disc 32 are pierced with central holes, circular and of the same diameter, which together constitute a bearing 123.

Le mobile des dizaines 56, qui porte le disque 34, est formé d'un canon 124, monté pivotant sur le tenon 116, d'une étoile à douze dents 126, à profil triangulaire, rivée sur le canon 124, et d'un râteau 127, solidaire en rotation de l'étoile 126.The mobile tens 56, which carries the disc 34, is formed of a gun 124, pivotally mounted on the post 116, a twelve-toothed star 126, triangular profile, riveted to the barrel 124, and a rake 127, integral in rotation with the star 126.

Pour assurer sa fixation sur le canon 124, le disque 34 comporte, sur sa face inférieure, une douille 34a engagée dans le palier 123.To ensure its fixing on the barrel 124, the disk 34 comprises, on its lower face, a sleeve 34a engaged in the bearing 123.

Le canon 124 comprend trois portion cylindrique 124a, 124b et 124c. La portion 124a, attenante à la platine 28, porte l'étoile 126. La portion 124b, intermédiaire et de plus grand diamètre sert de pivotement au palier 123. Elle est de même diamètre que la douille 34a. Enfin, la portion 124c est chassée dans la douille 34a, pour fixer rigidement l'un à l'autre le disque 34 et le mobile 56, l'ensemble formé par le disque 32 et le mobile 54 y étant emprisonné.The barrel 124 comprises three cylindrical portion 124a, 124b and 124c. The portion 124a, adjacent to the plate 28, carries the star 126. The portion 124b, intermediate and larger diameter is pivotal to the bearing 123. It is of the same diameter as the sleeve 34a. Finally, the portion 124c is driven into the bush 34a, to rigidly attach to each other the disc 34 and the mobile 56, the assembly formed by the disc 32 and the mobile 54 being trapped therein.

Comme le montre la figure 4, un ressort 128 et un sautoir 129 coopèrent avec le mobile 56. Ils sont respectivement fixés à la périphérie de la platine au moyen de vis 130 et 131, le ressort 128 au voisinage de "4 heures", le sautoir 129 au voisinage de "7heures". L'étoile 126 porte une goupille 132, disposée à la même hauteur que le ressort 128 et en appui contre son extrémité 128a.As shown in figure 4 a spring 128 and a jumper 129 cooperate with the mobile 56. They are respectively fixed to the periphery of the plate by means of screws 130 and 131, the spring 128 in the vicinity of "4 hours", the jumper 129 in the vicinity of " 7 hours". The star 126 carries a pin 132, disposed at the same height as the spring 128 and resting against its end 128a.

Une goupille 134, chassée dans la platine 28, sert de butée au râteau 127 lorsque celui-ci arrive en fin de course.A pin 134, driven into the plate 28 serves as a stop rake 127 when it reaches the end of the race.

Le sautoir 129 est engagé dans la denture de l'étoile 126. Il est prolongé par une tige 129a qui se trouve dans l'espace balayé par le doigt 88.The jumper 129 is engaged in the toothing of the star 126. It is extended by a rod 129a which is in the space swept by the finger 88.

Pour comprendre comment le mobile 54 est positionné, il faut se référer à la figure 3 sur laquelle on peut voir un sautoir 136 en prise avec la denture de l'étoile 118. Le sautoir 136 est fixé à la platine 28 au moyen d'une vis 138 disposée au voisinage de 6 heures.To understand how the mobile 54 is positioned, one must refer to the figure 3 on which we can see a jumper 136 engaged with the teeth of the star 118. The jumper 136 is fixed to the plate 28 by means of a screw 138 disposed in the vicinity of 6 hours.

Dans la description qui précède, les différents sautoirs et fouets ont été décrits comme fixés sur la platine au moyen de vis. Il va de soi que, pour garantir une position précise, il est avantageux de disposer des goupilles dans la platine et de munir chacun des sautoirs et des fouets de trous dans lesquels s'engagent les goupilles. Ce mode de faire est bien connu de l'homme du métier, c'est pourquoi il n'a pas été représenté, pour éviter de surcharger le dessin.In the above description, the various jumpers and whips have been described as fixed on the plate by means of screws. It goes without saying that, to guarantee a precise position, it is advantageous to have the pins in the plate and to provide each of the jumpers and whips holes in which engage the pins. This mode of doing is well known to those skilled in the art, that is why it has not been shown, to avoid overloading the drawing.

Le mécanisme 30, tel qu'il vient d'être décrit, comporte trois séquences de fonctionnement, définies par la position initiale de la bascule 44, en appui contre la came 72.The mechanism 30, as just described, comprises three operating sequences, defined by the initial position of the rocker 44, bearing against the cam 72.

Tous les jours, à l'exception des 9, 19, 29 et 31 du mois, le doigt 44g de la bascule 44 repose sur le niveau médian de la came, définit par les secteurs 72e à 72h. Les 9, 19 et 29, il est engagé respectivement dans les découpes 72a, 72b et 72c. Enfin, le 31, le doigt 44g est en appui sur la protubérance 72d. Ces différentes situations seront examinées successivement ci-après.Every day, with the exception of 9, 19, 29 and 31 of the month, the finger 44g of the rocker 44 rests on the median level of the cam, defined by sectors 72e to 72h. On 9, 19 and 29, it is respectively engaged in the cutouts 72a, 72b and 72c. Finally, the 31, the finger 44g bears on the protuberance 72d. These different situations will be examined successively below.

Durant plus de vingt heures, la roue "24 heures" 38 tourne librement, entraînant le doigt 42, par l'intermédiaire de la goupille 38a. Pendant ce temps, la bascule 44 est en position de repos, définie par l'appui du doigt 44g contre la came 72. Le mécanisme 30 est alors immobile.For more than twenty hours, the "24 hours" wheel 38 rotates freely, driving the finger 42, via the pin 38a. Meanwhile, the latch 44 is in the rest position, defined by the support of the finger 44g against the cam 72. The mechanism 30 is then stationary.

Aux environs de 22 heures, le doigt 42 entre en contact avec la bascule 44, prenant appui dans la zone de dédoublement du bras 44c, et plus particulièrement sur la paroi de la dent 44f. La bascule pivote alors lentement en 44a, dans le sens anti-horaire, armant le ressort 66, de telle sorte qu'elle exerce une force de contre-réaction sur le doigt 42.At around 22 hours, the finger 42 comes into contact with the rocker 44, bearing in the area of duplication of the arm 44c, and more particularly on the wall of the tooth 44f. The rocker then pivots slowly in 44a, counterclockwise, arming the spring 66, so that it exerts a force of feedback on the finger 42.

Lorsque le doigt 44g est en appui sur la portion médiane de la came 72, et peu avant que la force contre-réaction ne passe par l'axe de la vis 40, les doigts 44d, 44i et l'ergot 44h entrent respectivement en contact avec les dentures des étoiles 70, 98 et 118, les faisant toutes les trois avancer d'un pas.When the finger 44g is resting on the middle portion of the cam 72, and shortly before the negative feedback force passes through the axis of the screw 40, the fingers 44d, 44i and the pin 44b respectively come into contact with each other. with the teeth of the stars 70, 98 and 118, making all three advance one step.

Le disque 32 étant solidaire en rotation de l'étoile 118, il en résulte que l'index 24, porté par le disque 32, passe d'une découpe 20 à l'autre à raison d'un pas par jour, jusqu'à atteindre la découpe 20i, située à 9 heures, et qui indique que les unités du quantième sont égales à 9.Since the disc 32 is integral in rotation with the star 118, it follows that the index 24, carried by the disc 32, passes from one cutout 20 to the other at a rate of one step per day, up to to reach the cutout 20i, located at 9 o'clock, and which indicates that the units of the date are equal to 9.

Après que la force de contre-réaction a dépassé l'axe de la vis 40, elle engendre un couple sur le doigt 42 tendant à l'éloigner de la goupille 38a. La bascule 44 pivote alors dans le sens horaire, entraînée par la force exercée par le ressort 66, jusqu'à ce que le doigt 44g reprenne contact avec la came 72. Si le quantième du jour suivant est différent de 9, 19, 29 ou 31, le doigt vient prendre appui dans la partie médiane de la came 72. De la sorte, quelque 20 heures plus tard, le même enchaînement se reproduit.After the feedback force has exceeded the axis of the screw 40, it generates a torque on the finger 42 tending to move away from the pin 38a. The latch 44 then rotates clockwise, driven by the force exerted by the spring 66, until the finger 44g resumes contact with the cam 72. If the next day's date is different from 9, 19, 29 or 31, the finger comes to bear in the middle part of the cam 72. In this way, some 20 hours later, the same sequence is reproduced.

Si, par contre, le chiffre des unités du quantième du jour suivant est égal à 9, le doigt 44g s'engage alors dans l'une des découpes inférieures 72a, 72b ou 72c. Par ailleurs, le mobile des unités 54 a tourné de manière à ce que le levier d'entraînement 58 s'accroche sur le plan de raccordement 120a des deux extrémités de la spirale du colimaçon 120.If, on the other hand, the number of the units of the day of the next day is equal to 9, the finger 44g then engages in one of the lower cutouts 72a, 72b or 72c. Furthermore, the mobile unit 54 has rotated so that the drive lever 58 hooks on the connection plane 120a of both ends of the spiral spiral 120.

Lorsque le doigt 42 entre en contact avec la bascule 44 se trouvant dans cette position, son mouvement commence par faire tourner le mobile 54, successivement de trois fois 30°, de manière à ce que l'index des unités 24 se trouve en position du midi du cadran. Comme ce dernier ne comporte pas de découpe en cet endroit-là, l'index est donc masqué, indiquant, par là que le chiffre des unités est égal à 0.When the finger 42 comes into contact with the latch 44 in this position, its movement begins by rotating the mobile 54, successively by three times 30 °, so that the index of the units 24 is in position of the midi of the dial. As the latter does not include a cutout in this place, the index is hidden, indicating that the number of units is equal to 0.

En outre, l'ergot 44h entraîne, comme expliqué précédemment, la denture de l'étoile 70, alors que le doigt 44d fait avancer la denture de l'étoile 98 de un pas également, et, avec elle, la came 100.In addition, the lug 44h causes, as explained above, the toothing of the star 70, while the finger 44d advances the toothing of the star 98 of a step also, and with it, the cam 100.

Cette dernière est disposée de manière à ce qu'alors le fouet 113 dépasse l'extrémité extérieure du colimaçon 104 et provoque le déplacement brusque de la came 100, de sorte que le doigt 106 entraîne une dent du râteau 127. Le mobile des dizaines 56 avance donc de un pas et un index 26 supplémentaire est visibles au travers des découpes des dizaines 22.The latter is arranged so that the whip 113 then protrudes from the outer end of the spiral 104 and causes the cam 100 to move suddenly, so that the finger 106 drives a tooth of the rake 127. thus advance one step and an additional index 26 is visible through the cuts of tens 22.

Après que la force de contre-réaction a dépassé l'axe de la vis 40, la bascule 44 retombe et vient prendre appui sur une portion médiane de la came 72. Le jour suivant, le fonctionnement correspond donc à ce qui a été décrit précédemment, l'index réapparaissant dans la découpe 20a pour indiquer que le chiffre des unités est égal à 1.After the feedback force has exceeded the axis of the screw 40, the latch 44 drops and comes to bear on a middle portion of the cam 72. The following day, the operation corresponds to what has been described above. , the index reappearing in the cutout 20a to indicate that the number of the units is equal to 1.

Lors du passage du 31 au premier du mois suivant, il faut que le disque des unités 32 et que le bloc des dizaines 52 restent dans les positions qu'ils occupent et que le disque des dizaines recule pour que disparaissent les index des dizaines 26.During the passage from 31 to the first of the following month, it is necessary for the disk of the units 32 and the block of the tens 52 to remain in the positions they occupy and for the tens disk to move back so that the indexes of the tens 26 disappear.

Ces conditions sont satisfaites grâce au fait que l'amplitude du mouvement de la bascule 44 est réduite, le doigt 44g étant en appui sur la protubérance 72d. De la sorte, le mouvement des doigts 44d et 44i est insuffisant pour entraîner les dentures des étoile 98 et 118. En d'autres termes, seul l'ergot 44h travaille normalement et fait sauter de un pas la denture de l'étoile 70. Cette denture entraîne, avec elle, l'étoile 80 et le colimaçon 86, lequel atteint une position telle que le fouet 95 dépasse l'extrémité supérieure du colimaçon 86.These conditions are satisfied thanks to the fact that the amplitude of the movement of the rocker 44 is reduced, the finger 44g being in abutment on the protuberance 72d. In this way, the movement of the fingers 44d and 44i is insufficient to drive the teeth of the star 98 and 118. In other words, only the pin 44h normally works and jumps a step of the toothing of the star 70. This toothing causes, with it, the star 80 and the spiral 86, which reaches a position such that the whip 95 exceeds the upper end of the spiral 86.

Il en résulte un couple qui provoque une brusque rotation du colimaçon 86 et du doigt 88. Ce dernier soulève la tige 129a. Le sautoir 129 est alors dégagé de l'étoile 126. Le ressort 128 n'est plus retenu, de sorte qu'il fait tourner l'étoile 126 dans le sens anti-horaire, sur un angle de 90°. Dans cette position, les trois index 22 sont masqués par le cadran, le chiffre des dizaines du quantième étant donc égal à zéro.This results in a torque that causes a sudden rotation of the spiral 86 and the finger 88. The latter raises the rod 129a. The jumper 129 is then released from the star 126. The spring 128 is no longer held, so that it rotates the star 126 in the counterclockwise direction, at an angle of 90 °. In this position, the three indexes 22 are masked by the dial, the number of tens of the date being therefore equal to zero.

Le dispositif selon l'invention peut, bien entendu, faire l'objet de nombreuses variantes. Il est notamment possible de lui associer un mécanisme de correction rapide, commandé, de manière classique, par une tige de mise à l'heure.The device according to the invention can, of course, be the subject of numerous variants. In particular, it is possible to associate a fast correction mechanism, conventionally controlled by a time-setting rod.

Il est également possible de lui associer des moyens de commande du type équipant les montres à calendrier perpétuel. Dans ce cas, le mois pourra être indiqué par un autre index, avantageusement moins apparent que l'index du premier organe, se déplaçant en regard du cercle des heures. De la sorte, cet autre index se trouverait en regard du 1 en janvier, du 2 en février, etc.It is also possible to associate with it control means of the type equipping perpetual calendar watches. In this case, the month may be indicated by another index, advantageously less apparent than the index of the first organ, moving next to the circle of hours. In this way, this other index would be next to 1 in January, 2 in February, etc.

Claims (7)

  1. Date display device, intended to be fitted to a timepiece provided with a movement, a dial (10) and hands (12, 14) driven by said movement and displaying the time, which includes first (32) and second (34) display members, mounted to move in rotation on the movement, intended to display respectively the units and the tens of the date, and a drive and positioning mechanism (30) controlled by said movement and arranged so as to cause one or the other or both of said display members to jump forward once a day,
    characterized in that the first member (32) bears an index (24), and in that said mechanism (30) and the first member (32) are arranged so that, when said mechanism causes the display of the units of the date to pass from a value n to n+1, n being an integer number comprised between 1 and 9, said first member (32) travels, in the clockwise direction, through an angle equal to 30°, and in that, when n is equal to 1, the index (24) is located in a position with respect to said dial (10) corresponding to the position which an hour hand would occupy, when it is one o'clock.
  2. Device according to claim 1, characterized in that said mechanism (30) and the first member (32) are arranged so that the latter makes a jump of 90° when n is equal to 9, so that said index (24) passes from the «nine o'clock» position to the «midday» position.
  3. Device according to claim 2, characterized in that the first member is formed of a disc (32) bearing said index (24) and placed behind the dial (10), and in that the latter includes nine apertures (20a - 20i) disposed in an arc of a circle substantially concentric with the disc (32), the first aperture (20a) occupying a position corresponding to «1 o'clock» and the others making an angle of 30° with respect to each other, with reference to the central point of the arc of a circle, so that the last aperture (20i) is located at the «9 o'clock» position, so that altogether the index (24) of the first member is visible through the apertures (20).
  4. Device according to claim 3, characterized in that the second display member is formed of a second disc (34), carrying three indices (26) disposed in an arc of a circle, in that the dial (10) further includes three apertures (22a - 22c), also disposed in an arc of a circle concentric with and of the same radius as the arc formed by the indices (26) and in that the second display member and the drive and positioning mechanism (30) are arranged so that none, one, two or three of the indices (26) are visible through three apertures (22), according to whether the tens figure of the date is equal to 0, 1, 2 or 3.
  5. Device according to claim 4, characterized in that said mechanism (30) and said members (32, 34) are arranged so that, when the units figure of the date displayed is equal to 0 or comprised between 2 and 8, only the units disc (32) is driven, when the units figure is equal to 9, the units disc (32) and the tens disc (34) are both driven, when the units figure is equal to 1, and the tens figure to 0, 1 or 2, only the units disc (32) is driven, and when the units figure is equal to 1 and the tens figure to 3, only the tens disc (34) is driven.
  6. Device according to any of claims 1 to 5, characterized in that said mechanism (30) includes two wheels with twelve teeth (126, 118) respectively secured to the first (32) and second (34) members and each cooperating with a jumper spring (129, 136) to position it.
  7. Device according to claim 6, characterized in that said mechanism further includes:
    • a «24 hour» wheel (38), completing one revolution per day, driven by said movement, and carrying a drive finger (42),
    • a lever (44), mounted so as to pivot on the movement, actuated by said drive finger (42) and cooperating with a return spring (66), provided with first (44i), second (44h), third (44d) and fourth (58) drive means and positioning means (44g), the first drive means cooperating with the wheel (118) with twelve teeth secured to the first member (32) and causing it to move forward by one step each day,
    • a date wheel assembly (48) including a date wheel (70), with 31 teeth, making one step per day via the action of second drive means (44h), and a day cam (72), cooperating with the lever positioning means (44g) and defining three levels, the first, upper, level, corresponding to the position occupied by the date wheel assembly on the 31 st of the month, the second, median, level corresponding to the positions occupied by the date wheel assembly when the units figure of the date is equal to zero, or comprised between 2 and 8, or when the units figure is equal to 1 and the tens figure to 0, 1 or 2, and the third, lower, level, corresponding to the position occupied by the date wheel assembly when the units figure is equal to 9.
    • a drive unit (52) for the wheel (126) with twelve teeth secured to the second member (34), provided with a drive finger (106) and a wheel with ten teeth (98) and driven by one step per day by the third drive means (44d) of the lever (44), with the exception of the day when the positioning means (44g) abut against the upper level (72d) of said cam (72), and arranged so that the finger (106) drives the wheel (126) with twelve teeth secured to the second member (34) when the units figure of the date is equal to 9,
    • a retrograde unit (50) for the tens including a wheel with 31 teeth (80), kinematically connected to the wheel with 31 teeth (70) of the date wheel assembly (48), actuated when the lever positioning means (44g) abut against the upper level (72d) of said cam (72),
    • a return spring (128) of said second member (34), wound each time that the drive unit (52) moves the second member (34) forward and let down when the retrograde unit (50) is actuated, and
    • a drive member (120), secured in rotation to the first member (32) and cooperating with the fourth drive means (58), to cause the wheel with twelve teeth (118) secured to the first member (32) to move forward three steps each time that the positioning means (44g) of the lever (44) abut against the lower level (71 a, 71 b, 71 c) of said cam (72).
EP00111224A 2000-05-25 2000-05-25 Calendar display mechanism Expired - Lifetime EP1158374B1 (en)

Priority Applications (9)

Application Number Priority Date Filing Date Title
EP00111224A EP1158374B1 (en) 2000-05-25 2000-05-25 Calendar display mechanism
DE60040330T DE60040330D1 (en) 2000-05-25 2000-05-25 Date display device for a clock
JP2001586532A JP4675540B2 (en) 2000-05-25 2001-05-11 Date display device
PCT/IB2001/000814 WO2001090825A1 (en) 2000-05-25 2001-05-11 Device displaying calendar date
CNB018099505A CN100367135C (en) 2000-05-25 2001-05-11 Device displaying calendar date
US10/296,017 US6711098B2 (en) 2000-05-25 2001-05-11 Device displaying calendar date
MYPI20012250A MY127604A (en) 2000-05-25 2001-05-14 Device displaying calendar date
TW090111817A TW480373B (en) 2000-05-25 2001-05-17 Date display device
HK01108926A HK1039379A1 (en) 2000-05-25 2001-12-20 Calendar display mechanism

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP00111224A EP1158374B1 (en) 2000-05-25 2000-05-25 Calendar display mechanism

Publications (2)

Publication Number Publication Date
EP1158374A1 EP1158374A1 (en) 2001-11-28
EP1158374B1 true EP1158374B1 (en) 2008-09-24

Family

ID=8168835

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00111224A Expired - Lifetime EP1158374B1 (en) 2000-05-25 2000-05-25 Calendar display mechanism

Country Status (9)

Country Link
US (1) US6711098B2 (en)
EP (1) EP1158374B1 (en)
JP (1) JP4675540B2 (en)
CN (1) CN100367135C (en)
DE (1) DE60040330D1 (en)
HK (1) HK1039379A1 (en)
MY (1) MY127604A (en)
TW (1) TW480373B (en)
WO (1) WO2001090825A1 (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1416340A1 (en) * 2002-10-30 2004-05-06 Zenith International SA Calendar mechanism for a timepiece
EP1507179A1 (en) * 2003-08-12 2005-02-16 Frédéric Crettex Date corrector
GB2452045A (en) * 2007-08-21 2009-02-25 Richard Palmer A watch or clock with a date function
JP2011128027A (en) * 2009-12-18 2011-06-30 Techno Ark Co Ltd Calendar timepiece
EP2428856B1 (en) * 2010-11-03 2014-01-22 Rolex Sa Timepiece
EP3330809B1 (en) * 2016-12-01 2019-10-16 Omega SA Watch comprising a date display device
EP3667434B1 (en) * 2018-12-10 2021-08-04 Montres Breguet S.A. Large date mechanism and timepiece comprising such a mechanism
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HK1039379A1 (en) 2002-04-19
EP1158374A1 (en) 2001-11-28
WO2001090825A1 (en) 2001-11-29
JP4675540B2 (en) 2011-04-27
CN1430737A (en) 2003-07-16
US20030112707A1 (en) 2003-06-19
DE60040330D1 (en) 2008-11-06
JP2003534557A (en) 2003-11-18
TW480373B (en) 2002-03-21
US6711098B2 (en) 2004-03-23
CN100367135C (en) 2008-02-06
MY127604A (en) 2006-12-29

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