EP1593005B1 - Kalendarmechanismus zur darstellung des wochentages und des monatstages in einer uhr - Google Patents

Kalendarmechanismus zur darstellung des wochentages und des monatstages in einer uhr Download PDF

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Publication number
EP1593005B1
EP1593005B1 EP03799584A EP03799584A EP1593005B1 EP 1593005 B1 EP1593005 B1 EP 1593005B1 EP 03799584 A EP03799584 A EP 03799584A EP 03799584 A EP03799584 A EP 03799584A EP 1593005 B1 EP1593005 B1 EP 1593005B1
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EP
European Patent Office
Prior art keywords
day
wheel
tooth
date
drive
Prior art date
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Expired - Lifetime
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EP03799584A
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English (en)
French (fr)
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EP1593005A1 (de
Inventor
Marc KÜPFER
Marco Bettelini
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ETA SA Manufacture Horlogere Suisse
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ETA SA Manufacture Horlogere Suisse
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Priority to EP03799584A priority Critical patent/EP1593005B1/de
Publication of EP1593005A1 publication Critical patent/EP1593005A1/de
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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
    • G04B19/253—Driving or releasing mechanisms
    • G04B19/25333—Driving or releasing mechanisms wherein the date indicators are driven or released mechanically by a clockwork movement
    • G04B19/25353—Driving or releasing mechanisms wherein the date indicators are driven or released mechanically by a clockwork movement driven or released stepwise by the clockwork movement
    • G04B19/25366—Driving or releasing mechanisms wherein the date indicators are driven or released mechanically by a clockwork movement driven or released stepwise by the clockwork movement manually corrected at the end of months having less than 31 days
    • 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
    • G04B19/253—Driving or releasing mechanisms
    • G04B19/25333—Driving or releasing mechanisms wherein the date indicators are driven or released mechanically by a clockwork movement
    • 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
    • G04B19/253—Driving or releasing mechanisms
    • G04B19/25333—Driving or releasing mechanisms wherein the date indicators are driven or released mechanically by a clockwork movement
    • G04B19/2534—Driving or releasing mechanisms wherein the date indicators are driven or released mechanically by a clockwork movement driven or released continuously by the clockwork movement
    • 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
    • G04B19/253—Driving or releasing mechanisms
    • G04B19/25333—Driving or releasing mechanisms wherein the date indicators are driven or released mechanically by a clockwork movement
    • G04B19/2534—Driving or releasing mechanisms wherein the date indicators are driven or released mechanically by a clockwork movement driven or released continuously by the clockwork movement
    • G04B19/25346—Driving or releasing mechanisms wherein the date indicators are driven or released mechanically by a clockwork movement driven or released continuously by the clockwork movement manually corrected at the end of months having less than 31 days
    • 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
    • G04B19/253—Driving or releasing mechanisms
    • G04B19/25333—Driving or releasing mechanisms wherein the date indicators are driven or released mechanically by a clockwork movement
    • G04B19/25353—Driving or releasing mechanisms wherein the date indicators are driven or released mechanically by a clockwork movement driven or released stepwise by the clockwork movement
    • 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
    • G04B19/253—Driving or releasing mechanisms
    • G04B19/25333—Driving or releasing mechanisms wherein the date indicators are driven or released mechanically by a clockwork movement
    • G04B19/25353—Driving or releasing mechanisms wherein the date indicators are driven or released mechanically by a clockwork movement driven or released stepwise by the clockwork movement
    • G04B19/2536—Driving or releasing mechanisms wherein the date indicators are driven or released mechanically by a clockwork movement driven or released stepwise by the clockwork movement automatically corrected at the end of months having less than 31 days

Definitions

  • the subject of the present invention is a calendar mechanism for displaying the date and the day of the week in a timepiece, comprising a date indicator in the form of an internally toothed ring gear, means for driving this date indicator comprising a first drive wheel having an external toothing to be driven about an axis of rotation by a mobile integral with a wheel hours of the timepiece and this toothing comprising a protruding tooth, longer than the others , which comes to rest on a tooth of the internal toothing of the date indicator to advance it by one day in a time interval situated around a given time of the day, this mechanism also comprising an indicator of the day of the week, means for training this weekday indicator to advance it one day during said time interval and means for positioning said indicators.
  • a mechanism of this kind represented by the document CH 684 980G , and similar to that which is part of certain movements of watches already manufactured and marketed by the applicant is represented, seen in exploded perspective at the figure 1 , at the same time as other elements of the movement which have a direct relation with this mechanism.
  • this barrel 4 can rotate a barrel 6 of a minute wheel itself surrounding an axis 8 of a wheel of seconds, this barrel 6 and this axis 8 being provided to respectively carry a minute hand and a second hand also not shown.
  • This drive wheel which pivots on a fixed shaft 14 of the movement and which has twelve teeth 18, in order to perform a turn in 24 hours, is alone responsible for driving both a disc of the days of the week 20 integral with a star of the days 22 and a date crown 24, a way that will be explained in detail later.
  • a plate 26 partially shown which comprises an upper flange 28 provided to support a dial 30 provided with a window 32.
  • This plate 26 which allows axially positioning the dial 30 also serves to position it angularly by means not shown, so that its window 32 is at 3 o'clock to allow the user of the watch containing the movement to read correctly the day of the week and the date of this day through this window.
  • the plate 26 also serves as a support for the date ring 24 which is surrounded and held in place radially by the rim 28 of this plate.
  • the day 20 disc which has two abbreviations of the seven days of the week in one language and the day star 22 which consequently comprises fourteen teeth 34 are mounted so as to be pivotable around the mouth. 4 of the hour wheel 2 and held in place axially by a key 36, the assembly of the disc 20 and the star 22 can be done for example by riveting or laser welding.
  • the date ring 24 which can be obtained by cutting and folding from a sheet metal or a thin metal strip, it has a stair-shaped profile and comprises three concentric annular parts 38, 40 and 42 whose level is decreasing from outside to inside.
  • the first annular portion 38 whose contour corresponds to that of the crown carries numbers from 1 to 31 regularly distributed over its surface.
  • the second part 40 which receives the disc of the days 20 has a diameter barely greater than that of this disc so as not to hinder its rotation and the difference in level between this second part and the first is such that the day of the week and the date and date appear substantially in the same plane and close to one another in the window 32 of the dial 30.
  • the third portion 42 it has an internal toothing which comprises 31 radial and isosceles-shaped teeth 44 which correspond to the 31 days the longest months.
  • the calendar mechanism of the movement of the figure 1 also comprises a holding plate 46 interposed between the day disc 20 and the third portion 42 of the date ring 24, which is fixed by means of screws 48 to a fixed part of the movement.
  • This plate 46 has three functions. The first and the second consist in axially holding the drive wheel 16 and the date ring 24 without impairing their mobility. The third function is to serve as spring-jumpers for the date crown 24 and for the star of the days 22.
  • the plate 46 is cut and folded so as to form a first elastic tongue 50 which extends below of the plane of the main part of this plate and which ends with a V-shaped end, pointing outwards of the movement to engage between the teeth 44 of the date ring 24 and a second elastic tongue 52 s' extending above the plane of the same plate 46 and which also terminates in a V-shaped end but pointing inwardly to engage between the teeth 34 of the star of the days 22 which are at the both radial and isosceles.
  • This wheel 16 comprises a hub 54 through which it is mounted on the shaft 14 and which is connected by a radius-shaped connection element 56 to a ring 58 which carries the teeth 18 mentioned above.
  • this tooth 18 is a protruding tooth 18 'which extends radially beyond the others so as to be the only one able to engage between the teeth 44 of the date ring 24 while being able to engage the same the others between the teeth 12 of the pinion 10.
  • this tooth 18 ' has a side called "front flank” 60 of the same inclination as the flanks of other teeth that is to say say substantially radial and a “trailing edge” 62 which, at the end of this tooth intended to engage between the teeth 44 of the ring 58 has an oblique face 64 of lower inclination to form an acute angle with the flank before 60.
  • the wheel 16 also comprises a resilient arm 66 roughly in the shape of an arc of a circle, made of a piece with the other elements of the wheel 16, attached to the hub 54 and extending inside of the ring gear 58.
  • This arm has at its free end a first tongue of substantially rectangular shape and bent at 90 ° in the direction of the front of the movement so as to form a drive finger 68 engageable between the teeth 34 Moreover, the arm 66 and the orientation of the drive finger 68 relative to the flanks of the teeth 34 are provided so that the arm deforms significantly only when it is forced to away from the hub 54 of the wheel 16 and very little in the opposite direction.
  • the wheel 16 also comprises a second tongue 70 of substantially rectangular shape, made of a piece with the elastic arm 66, located in the plane of the wheel, at a distance from the end of this arm and extending towards the crown 58.
  • This second tab which does not interfere in the operation of the calendar mechanism of the figures 1 and 2 will be specified later.
  • This calendar mechanism of figures 1 and 2 and trailing type that is to say that the advance of the calendar of a unit and the passage from one day of the week to the next are made during a time interval of about four hours around midnight.
  • the drive wheel 16 is designed so that there is a certain phase shift, for example about half an hour, between the start of training the disc 20 days and that of the date ring 24 or vice versa. Then it is in the first of these situations that we will set our to describe the functioning of the calendar mechanism of figures 1 and 2 and a variant also known from the latter as well as that of the mechanism according to the invention.
  • the front flank 60 of the tooth 18 'of the wheel 16 comes into contact with the rear flank of a tooth 44 of the crown of date 24 and then begins to slide on this rear flank and to rotate the date crown in the direction of the arrow F3 that is to say in the same direction as the drive wheel 16 and in the opposite direction to that in which the disc rotates days 20.
  • the end of the jumper spring 50 begins to out of the hollow between two teeth 18 of the date ring in which it was, this spring begins to stretch and the torque exerted by the tooth 18 'on the tooth 44 with which it is in contact begins to increase.
  • the wheel 16 simultaneously drives the day star 22 and the date ring 24 by providing a torque greater than that the sum of the resistant torques exerted by the jump springs 50 and 52 respectively on the tooth 34 of the day star 22 and that 44 of the date ring 24 with which the tooth 18 'and the tooth 34 of the tooth are in contact with each other; star of days 22, these couples continuing to increase until the end of spring-jumper 52 reaches the top of tooth 34 of the star of days 22.
  • the spring 52 relaxes when its tip descends into the hollow of the star of the days 22 following that between the teeth of which it was previously, in the direction of the arrow F2.
  • the drive finger 68 of the arm 16 is ejected from the toothing of the star of days 22 while it exerted on it a maximum torque and the day of the week indicated by the disk 20 ends move on to the next day.
  • the total torque supplied by the drive wheel 16 never reaches the sum of the maximum torques exerted by this wheel on the star of days. and the date crown, which makes it possible to prevent a blocking of the drive motor of the movement or at least a return back of this disc and / or this crown.
  • control rod is a rod that can be placed in three axial positions, a neutral or reassembled thrust position, a first drawn position in which the display The date can be modified by turning the rod in one direction and that of the day of the week by turning the rod in the other direction and a second drawn position reserved for setting the time of the hands of the watch.
  • the mechanism for correcting the date not shown acts on the teeth 44 of the date ring 24 so as to turn the latter in the direction of the arrow F3, against spring-jumper 50 and each time that the leading edge of a tooth 44 comes into contact with the oblique face 64 of the trailing edge 62 of the tooth 18 'of the drive wheel 16, this leading edge of a tooth 44 slides on this oblique face of the tooth 18 'without substantially modifying the angular position of this tooth 18' and this thanks to a clean elasticity of the drive wheel 16 which then deforms very slightly and against the resisting torque then exerted on this wheel 16 by the pinion 10 which rotates in the opposite direction at a much lower speed, which can even be considered as zero.
  • the correction mechanism causes the star of the days 22 in the direction of the arrow F2 by blowing the end of the spring-jumper 52 of a hollow between two teeth 34 to the next.
  • a leading edge of a tooth of the star of the days 22 comes into contact with the drive finger 68, it forces the elastic arm 66 to curve very slightly towards the hub 54 of the wheel 16 and then to resume its initial position after passing to the top of this tooth 22 by the finger 68.
  • FIGS. 3 and 4 illustrate a variant of the calendar mechanism represented on the figures 1 and 2 , which corresponds to a mechanism used in other movements also manufactured and marketed by the plaintiff.
  • this star As shown in figure 3 which is a top view of the disc of the days of the week and the star of days, this star always designated by the reference number 22 remains unchanged and still has fourteen teeth 34.
  • the disc of the days 20 'no longer bears twice the abbreviations of the successive days of the week in the same language, as the disc 20 of the figure 1 , but alternatively the abbreviations of days in two languages, in this case in English and French.
  • the star and disc of the days should no longer rotate normally one fourteenth of a turn per day but one seventh. For this it is sufficient to bend at 90 ° the second tongue 70 of the drive wheel 16 shown on the figures 1 and 2 to make it a second driving finger 70 ', as shown in FIG. figure 4 .
  • the second finger 70' acts in the same way on the next tooth 34 to rotate the disc again a fourteenth of a turn in the same direction.
  • the action of the second finger 70 ' is synchronized with that of the tooth 18' so that the total torque that must exercise at the same time the drive wheel 16 on the star of days 22 and the date ring 24 never reaches the sum of the maximum torques necessary to turn this star and this crown.
  • the second finger 70 acts as the first 68, that is to say that it forces the elastic arm 66 to curve to allow the 'star 22 and the 20 day disc' to switch from displaying the same day from one language to another or from one day to the next in the same language.
  • the wheel 16 made in one piece in the same material does not provide an optimization of the training of both the star of day and the crown of date according to the materials of which can be constituted, for example when the date ring is made of copper alloy and beryllium while the star of the day is steel to allow welding on this star a disc of days by laser.
  • the sign and the value of the phase difference between the drive of the day disc and that of the date crown are determined during the design and manufacture of the drive wheel 16. For a variety of reasons, it may be best to start with the date crown instead of the star and disc of the days and not necessarily with the same lead. In the case of known mechanisms Figures 1 to 4 this can only be done by replacing wheel 16 with another.
  • the object of the invention is to provide a calendar mechanism capable of indicating both the date and the day of the week that does not have these disadvantages.
  • the mechanism according to the invention which corresponds to the definition given in the first paragraph above is remarkable in that the drive means of the indicator of the day of the week comprise a second wheel. with the outer teeth, superimposed and coaxial with the first drive wheel and in that said first and second drive wheels have the same diameter and the same number of teeth and are driven by the same mobile. in solidarity with the hour wheel.
  • said drive wheel is constituted by a pinion fixed on a barrel of said hour wheel and having a number of teeth equal to half that of said first and second drive wheels.
  • the embodiment of the mechanism according to the invention shown in the figure 5 is distinguished from the variant in question by the fact that the single drive wheel 16 of this variant is replaced by two superimposed coaxial wheels 76 and 76 ', having the same diameter and the same number of teeth, respectively 78 and 78', in this case twelve teeth, which are both mounted on the same shaft 14 secured to the frame of the movement and driven by the same pinion gear with six teeth integral with the barrel 4 of the hour wheel 2 of this movement.
  • the height of the shaft 24 and the thickness of the pinion 10 may be greater than those they had in the embodiment and variant known previously described.
  • the exact shape of the plate 46 which keeps these two wheels in place could be slightly modified, at least locally.
  • the wheel 76 which is responsible for driving the date ring 24 has, like the wheel 16 of the Figures 1 to 4 , a hub, a spoke and a ring gear not referenced.
  • the wheel 76 no longer includes elastic arms or fingers for training the star 22 and the disc of the days 20, which means that it could be made in another form provided that it continues to present, d on the one hand, a tooth 78 'longer than the others and of the same shape as before to be able to drive the date crown and, on the other hand, a sufficient elasticity to allow a manual modification of the display of this calendar of days. the same way as with the single drive wheel 16.
  • the wheel 76 ' which is above the date drive wheel and whose role is to drive the star 22 and the disk 20 of the days of the week, it is identical to the wheel 16 of the figure 2 except that it does not have a particular tooth and that its twelve teeth 78 'are identical.
  • parameters of each of the wheels 76 and 76 ' can be determined separately according to the structural characteristics and methods of making the mobiles that they cause to optimize the operation of the calendar mechanism of which they are part.
  • the mechanism according to the invention comprises two superimposed coaxial wheels 80 and 80 'having the same diameter and the same number of teeth, respectively 82 and 82', also twelve in number, mounted on the same shaft 14 secured to the frame movement and driven by the same pinion gear with six teeth integral with the hour wheel 2 of this movement.
  • the wheel 80 intended to drive the date ring 24, comprises a hub 84 from which a broad, substantially radial arm 86 extends. From the end of this radial arm 86, in turn, a resiliently deformable arm 88 is substantially shaped. of arc of circle, which extends in the normal direction of rotation of the wheel 80, indicated by the arrow F1, and which surrounds for the most part the hub 84 to be connected from the inside and by a connecting part substantially radial and rigid 90 to a ring 92 which carries the teeth 82 of the wheel.
  • the crown 92 has a particular prominent tooth 82 "longer than the others to be able to engage between the teeth 44 of the date crown 24 (see figure 6 ) and which has the same orientation and the same shape as the prominent teeth of the drive wheels of the date crowns that have been discussed so far.
  • this tooth 82 is no longer attached to the normal tooth 82 which precedes it when the wheel 80 rotates in the direction of arrow F1 but separated from it by a cut 94.
  • the mechanism according to the invention is no longer of the trailing but semi-trailing type or which amounts to the same semi-instantaneous, which means that the change of the date indication is faster than in the execution form of the figure 5 , the time of this change being roughly halved.
  • the wheel 80 'for driving the star 22 and the disc 20 of the days of the week comprises a hub 106, a ring 108 bearing the teeth 82' and connected to the hub 106 by a radius 110, a resilient arm 112 substantially shaped a circular arc which surrounds a portion of the hub 106 and which carries two driving fingers 112 and 114 formed and arranged in the same way as the driving fingers 68 and 70 'of the drive wheel 16 shown in FIG. figure 4 and that is part of the variant of the known calendar mechanism of the figure 1 .
  • the elastic arm 112 of the drive wheel 80 'shown in FIG. figure 8 also carries a substantially radial bearing pin 118 located in the plane of this wheel which extends towards the crown 108 and which ends with a rounded end 120.
  • the finger 118 also serves as a stop for the ring 92 of the drive wheel 80 of the date ring 24 disposed below the drive wheel 80 'of the star 22 and this in order to avoid a possible wedging between these two wheels which are very thin and which can deform while it turns.
  • the disc of the days in two languages could be replaced by a disc in one language like that of the figure 1 .
  • the drive wheel of this disc would have more than one drive tooth.
  • this disc of the days could only wear once the days of the week and the star of days have only seven teeth.

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

Claims (12)

  1. Kalendermechanismus zum Anzeigen des Datums und des Wochentags in einem Zeitmessgerät, umfassend einen Datumsanzeiger (24) in Form einer innen gezahnten Krone, wobei Mittel (10, 76; 10, 80) zum Antreiben dieses Datumsanzeigers ein erstes Antriebsrad (76; 80) umfassen, das eine Aussenzahnung (78; 82) aufweist, um von einem mit einem Stundenrad (2) des Zeitmessgeräts fest verbundenen Drehteil (10) um eine Drehachse angetrieben zu werden, und welche Zahnung einen vorspringenden Zahn (78"; 82"), der länger ist als die anderen, umfasst, welcher Zahn sich gegen einen Zahn der Innenzahnung (44) des Datumsanzeigers anlegt, um ihn in einem um eine bestimmte Stunde des Tages liegenden Zeitabschnitt um einen Tag vorrücken zu lassen, wobei dieser Mechanismus ebenfalls einen Wochentaganzeiger (20), Mittel (10, 76', 22; 10, 80', 22) zum Antreiben dieses Wochentaganzeigers und Mittel (50, 52) zum Positionieren der Anzeiger (24, 20) umfasst und welcher Mechanismus dadurch gekennzeichnet ist, dass die Mittel zum Antreiben des Wochentaganzeigers ein zweites mit einer Aussenzahnung (78'; 82') versehenes Antriebsrad (76'; 80'), das dem ersten Antriebsrad (76; 80) überlagert ist und koaxial zu diesem Letzteren angeordnet ist, umfassen und dass das erste und das zweite Antriebsrad (76, 76'; 80, 80') den gleichen Durchmesser sowie die gleiche gerade Zahl von Zähnen (78, 78'; 82, 82') aufweisen und vom gleichen mit dem Stundenrad (2) fest verbundenen Drehteil (10) angetrieben werden.
  2. Kalendermechanismus nach Anspruch 1, dadurch gekennzeichnet, dass der Antriebsdrehteil aus einem Trieb (10) besteht, der auf einem Rohr (4) des Stundenrades (2) befestigt ist und eine Zahl von Zähnen (12) umfasst, die der Hälfte der Zähnezahl des ersten und des zweiten Antriebrades (76, 76'; 80, 80') entspricht.
  3. Kalendermechanismus nach Anspruch 2, dadurch gekennzeichnet, dass der Wochentaganzeiger aus einer koaxial zum Datumsanzeiger (24) angeordneten Scheibe (20) besteht und dass die Mittel zum Antreiben dieser Scheibe einen Tagesstern (22) umfassen, der mit dieser Scheibe fest verbunden ist und vom zweiten Antriebsrad (76'; 80') angetrieben wird.
  4. Kalendermechanismus nach Anspruch 3, dadurch gekennzeichnet, dass das zweite Antriebsrad (76'; 80') um eine ortsfeste Welle (14) dreht und eine Nabe (106), mittels derer es auf dieser Welle montiert ist und die mit einer die Zähne (78'; 82') tragenden Krone (108) verbunden ist, und einen merklich kreisbogenförmigen elastischen Arm (112) umfasst, der wenigstens indirekt mit der Nabe verbunden ist und diese Letztere teilweise umgibt, und dass der elastische Arm an seinem freien Ende einen ersten merklich senkrecht auf die Ebene des zweiten Rades stehenden Antriebsfinger (114) aufweist, der sich zwischen die Zähne (34) des Tagessterns (22) einfügt, um die Wochentaganzeigescheibe (20) um einen Tag vorrücken zu lassen, wenn der Kalendermechanismus normal funktioniert.
  5. Kalendermechanismus nach Anspruch 4, dadurch gekennzeichnet, dass die Wochentaganzeigescheibe (20) wechselweise Abkürzungen der Namen der Wochentage in zwei verschiedenen Sprachen trägt, dass der Tagesstern (22) vierzehn Zähne (34) umfasst, dass der elastische Arm (112) einen zweiten ebenfalls merklich senkrecht auf die Ebene des zweiten Antriebsrades (76'; 80') stehenden Antriebsfinger (116) aufweist und dass der zweite Antriebsfinger (116) im Verhältnis zum Ersten (114) derart angeordnet ist, dass diese Antriebsfinger nacheinander auf zwei aufeinanderfolgende Zähne (34) des Tagessterns einwirken, um die Wochentagscheibe während des um eine bestimmte Stunde des Tages liegende Zeitabschnitts zweimal um eine vierzehntel Umdrehung in der gleichen Richtung drehen zu lassen.
  6. Kalendermechanismus nach Anspruch 4 oder 5, dadurch gekennzeichnet, dass der elastische Arm (112) ebenfalls einen Auflagefinger (118) trägt, der merklich radial ist und in der Ebene des zweiten Antriebsrades (80') angeordnet ist und der ein Ende (120) aufweist, das gegen die Krone (108) des zweiten Antriebsrades (80') stösst, wenn der elastische Arm in Richtung der Krone deformiert wird, nämlich praktisch in dem Moment, wo diese Deformierung ausreichend ist, um dem ersten Antriebsfinger (114) zu ermöglichen, die Wochentaganzeigescheibe (20) entgegen den Positionierungsmitteln (52) um einen Tag vorrücken zu lassen.
  7. Kalendermechanismus nach Anspruch 4 oder 5, dadurch gekennzeichnet, dass der elastische Arm (112), der erste Antriebsfinger (114), die Zähne (34) des Tagessterns (22) und die Mittel (52) zum Positionieren dieses Sterns derart beschaffen sind, dass der erste Antriebsfinger auf einem der Zähne (34) gleitet, und dies ohne erhebliche Deformierung des elastischen Arms (112) in Richtung Nabe (106) und dank einer eigenen elastischen Deformierung der Krone (108), damit die Anzeige der Wochentage nicht verändert wird, wenn der Trieb (10) in einer Richtung dreht, die derjenigen, die ihm ermöglicht, das zweite Antriebsrad (76'; 80') und den Tagesstern in ihrer normalen Drehrichtung (F1 bzw. F2) anzutreiben, entgegengesetzt ist.
  8. Kalendermechanismus nach Anspruch 2, dadurch gekennzeichnet, dass das erste Antriebsrad (76) um eine ortsfeste Welle (14) dreht und eine Nabe umfasst, mittels derer es auf dieser Welle montiert ist und die über einen radialen Arm mit einer die Zähne (78) tragenden Krone verbunden ist.
  9. Kalendermechanismus nach Anspruch 8, dadurch gekennzeichnet, dass der vorspringende Zahn (78") des ersten Antriebsrades (76) eine vordere Flanke aufweist, die merklich radial ist wie die anderen Zähne (78) dieses Rades (76) und die jedes Mal auf einen Zahn (44) der Datumskrone (24) einwirkt, um die Datumsanzeige um einen Tag vorrücken zu lassen, wenn der Mechanismus normal funktioniert, und welcher vorspringende Zahn eine hintere Flanke aufweist, die am Ende dieses vorspringenden Zahns, der vorgesehen ist, um sich zwischen die Zähne (44) der Datumskrone einzufügen, eine schiefe Fläche mit geringerer Neigung aufweist, um mit der vorderen Flanke einen spitzen Winkel zu bilden und dem ersten Antriebsrad (76), das sich dann elastisch deformiert, zu ermöglichen, in der Richtung, die seiner normalen Drehrichtung (F1) entgegengesetzt ist, zu drehen, ohne die Datumsangabe zu verändern, wenn es durch den Trieb (10) in dieser entgegengesetzten Richtung angetrieben wird.
  10. Kalendermechanismus nach Anspruch 2, dadurch gekennzeichnet, dass das erste Antriebsrad (80) um eine ortsfeste Welle (14) dreht und eine Nabe (84), von der ein breiter radialer Arm (86) ausgeht, einen merklich kreisbogenförmigen elastisch verformbaren Arm (88), der von einem freien Ende des Arms (86) ausgeht und sich in der normalen Drehrichtung (F1) des ersten Antriebsrades ersteckt, wobei dieser elastisch verformbare Arm grossenteils die Nabe (84) umgibt, um sich übers Innere anzuschliessen, und einen merklich radialen und starren Anschlussteil (90) an eine die Zähne (82) tragende Krone (92) umfasst, welcher Mechanismus auch dadurch gekennzeichnet ist, dass der vorspringende Zahn (82") des ersten Antriebsrades (80) von dem Zahn (82), der ihm vorangeht, wenn dieses Rad in seiner normalen Drehrichtung (F1) dreht, durch einen Schlitz (94) der Krone (92) getrennt ist und dass der vorspringende Zahn, wenn dieses Rad in dieser normalen Richtung dreht und wenn der vorspringende Zahn (82") mit einem Zahn (44) der Datumskrone (24) in Kontakt gelangt, um diese Letztere anzutreiben, zuerst unbeweglich bleibt, während sich der elastisch verformbare Arm (88) in die Richtung, die ihn an die Nabe (84) heranrückt, spannt und während die Breite des Schlitzes (94) zunimmt, und dies bis eine vordere Flanke (102) des Anschlussteils (90) mit einer hinteren Flanke (104) des radialen Arms (86) in Kontakt gelangt und der vorspringende Zahn (82") mit dem ihm vorangehenden Zahn (82) in Kontakt gelangt, woraufhin der vorspringende Zahn die Datumskrone antreibt, um sie um einen Tag vorrücken zu lassen und dann dem ersten Antriebsrad (80) zu ermöglichen, wieder seine ursprüngliche Form anzunehmen.
  11. Kalendermechanismus nach Anspruch 10, dadurch gekennzeichnet, dass der vorspringende Zahn (82") des ersten Antriebsrades (80) eine vordere Flanke (96), die merklich radial ist wie die anderen Zähne (82), aufweist, um die Datumsanzeige um einen Tag vorrücken zu lassen, wenn der Mechanismus normal funktioniert, und welcher vorspringende Zahn eine hintere Flanke (98) aufweist, die am Ende dieses vorspringenden Zahns, der vorgesehen ist, um sich zwischen die Zähne (44) der Datumskrone (24) einzufügen, eine schiefe Fläche (100) mit geringerer Neigung aufweist, um einen spitzen Winkel mit der vorderen Flanke (96) zu bilden, und dass dieser Zahn (44), wenn das erste Antriebsrad (80) in der seiner normalen Drehrichtung (F1) entgegengesetzten Richtung angetrieben wird und wenn die schiefe Fläche (100) des vorstehenden Zahns (82") mit einem Zahn (44) der Datumskrone (24) in Kontakt gelangt, auf der schiefen Fläche gleitet, was eine leichte Spannung des elastischen Arms (88) und eine geringe Verminderung der Breite des Schlitzes (94) der Krone (92) des ersten Antriebsrades (80) bewirkt, jedoch ohne die Datumsanzeige zu verändern.
  12. Kalendermechanismus nach Anspruch 1, dadurch gekennzeichnet, dass der Antrieb des Datumsanzeigers (24), wenn dieser Mechanismus normal funktioniert, im Verhältnis zu demjenigen des Wochentaganzeigers (20) zeitlich verschoben ist, damit die für den Antrieb dieser Anzeiger nötigen Momente ihre Maximalwerte nicht praktisch gleichzeitig erreichen und um eine Funktionsstörung des Zeitmessgeräts, wozu sie gehören, zu vermeiden.
EP03799584A 2003-01-07 2003-12-18 Kalendarmechanismus zur darstellung des wochentages und des monatstages in einer uhr Expired - Lifetime EP1593005B1 (de)

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EP03075060 2003-01-07
EP03075060 2003-01-07
PCT/EP2003/051044 WO2004066039A1 (fr) 2003-01-07 2003-12-18 Mecanisme de calendrier pour afficher le quantieme et le jour de la semaine dans une piece d'horlogerie
EP03799584A EP1593005B1 (de) 2003-01-07 2003-12-18 Kalendarmechanismus zur darstellung des wochentages und des monatstages in einer uhr

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EP1593005B1 true EP1593005B1 (de) 2011-07-27

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US20090003139A1 (en) 2009-01-01
AU2003299250A1 (en) 2004-08-13
ATE518168T1 (de) 2011-08-15
JP2006513426A (ja) 2006-04-20
US7433271B2 (en) 2008-10-07
JP4239099B2 (ja) 2009-03-18
EP1593005A1 (de) 2005-11-09
US7522476B2 (en) 2009-04-21
US20060221773A1 (en) 2006-10-05
CN100435046C (zh) 2008-11-19
WO2004066039A1 (fr) 2004-08-05
HK1084194A1 (zh) 2006-07-21
CN1735844A (zh) 2006-02-15

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