EP1586962B1 - Perpetual calendar mechanism - Google Patents

Perpetual calendar mechanism Download PDF

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Publication number
EP1586962B1
EP1586962B1 EP05005083.0A EP05005083A EP1586962B1 EP 1586962 B1 EP1586962 B1 EP 1586962B1 EP 05005083 A EP05005083 A EP 05005083A EP 1586962 B1 EP1586962 B1 EP 1586962B1
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EP
European Patent Office
Prior art keywords
date
wheel
pinion
month
lever
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EP05005083.0A
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English (en)
French (fr)
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EP1586962B9 (de
EP1586962A2 (de
EP1586962A3 (de
Inventor
Karl-Friedrich Scheufele
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Chopard Manufacture SA
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Chopard Manufacture SA
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Publication of EP1586962A2 publication Critical patent/EP1586962A2/de
Publication of EP1586962A3 publication Critical patent/EP1586962A3/de
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Publication of EP1586962B1 publication Critical patent/EP1586962B1/de
Publication of EP1586962B9 publication Critical patent/EP1586962B9/de
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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
    • 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
    • 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
    • G04B19/25373—Driving or releasing mechanisms wherein the date indicators are driven or released mechanically by a clockwork movement driven or released stepwise by an energy source which is released at determined moments by the clockwork movement
    • G04B19/2538—Driving or releasing mechanisms wherein the date indicators are driven or released mechanically by a clockwork movement driven or released stepwise by an energy source which is released at determined moments by the clockwork movement automatically 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
    • G04B19/26—Clocks or watches with indicators for tides, for the phases of the moon, or the like
    • G04B19/268—Clocks or watches with indicators for tides, for the phases of the moon, or the like with indicators for the phases of the moon

Definitions

  • the present invention relates to a perpetual or annual calendar mechanism for a timepiece such as a wristwatch.
  • the perpetual or annual calendar mechanisms generally comprise a drive rocker carrying a small pawl cooperating with a date wheel with 31 teeth of a date mobile for the passage from one day to the next within a month and for the passage of the last day of a month of 31 days to the first day of the following month and a large pawl cooperating with a calendar mobile snail correction cam for the correction of end-of-month days of less than 31 days .
  • the present invention aims to remedy the aforementioned drawbacks of known perpetual or annual calendar mechanisms, or at least to mitigate, and proposes for this purpose a date mechanism according to claim 1 attached, particular embodiments of this mechanism being defined in the dependent claims.
  • the perpetual calendar mechanism according to the invention is mounted on a plate 1 intended to be placed in a watch case between the movement and the dial.
  • This mechanism comprises in particular a date finger 2, a date latch 3 and a correction lever 4.
  • the latches 3, 4 are mounted around the same pivot axis 5 but are free to rotate relative to one another. 'other.
  • the date finger 2 is driven continuously counterclockwise hours and minutes of the watch at a rate of one turn per day by a pin 6 integral with a 24-hour wheel 7 meshing with a return wheel of 12 hours 8 seconds of the clock wheel.
  • the date finger 2 cooperates each day, starting at a certain time, with a finger 9 (cf. figure 4 ) of the date latch 3 and a finger 10 (cf. figure 5 ) of the correction lever 4 to lift progressively these two latches 3, 4 against the action exerted on the date latch 3, respectively on a pivoting shuttle 11 cooperating with the correction lever 4, by springs of respective booster 12, 13.
  • the calendar latch 3 comprises, in addition to the finger 9, a first small pawl 14 and a second small pawl 15 which, during the passage from one day to the next, respectively cooperate with a date star 31 teeth 16 and a star of days to seven teeth 17 to turn them instantly one step.
  • the star of days 17 carries an indicator hand 18 associated with a display area of the days of week 19 on the dial of the watch ( figure 6 ).
  • the angular position of the date star 16 and that of the star of the days 17 are indexed by jumpers 20, 21, respectively.
  • the correction lever 4 for its part, has at one of its ends a rake 22 in engagement with a corresponding rake 23 of the pivoting shuttle 11 and at another end a probe consisting of a finger 24 in which is fixed a probing pin 25 which, in the rest position of the correction lever 4, is in contact with a cam of months 26 or a leap year cam 27 ( figure 5 ).
  • Each flip-flop 3, 4 extends partly on one side of the pivot axis 5 and partly on the other side of the pivot axis 5.
  • the probe 24-25 is located on the side opposite that of the rake 22 and the finger 10.
  • the shape of each latch 3, 4 is advantageously chosen so that the center of gravity of the rocker 3, 4 is substantially on the pivot axis 5. In this way, the mechanism is made less sensitive to shocks.
  • one or more ball bearings can be associated with the pivot axis 5 of the latches 3, 4 to reduce the coefficients of friction.
  • the date star 16 is integral with a date wheel with 31 teeth 28, a wheel units 29 to 29 teeth plus an empty space 29 'occupying the place of two consecutive teeth, a wheel tens to four teeth 30 and a correction cam snail 31.
  • the assembly formed by the date star 16, the date wheel 28, the wheel units 29, the tens wheel 30 and the correction cam 31 will be called "mobile date” in the following description.
  • the wheel of the units 29 is engaged with a pinion of the units with ten teeth 32 carrying a disk of the units 33 on which is written a series of digits 0 to 9 of large format representative of the units of the date.
  • the tens wheel 30 cooperates with a pinion of tens to eight teeth 34 carrying a tens disk 35 on which are written two consecutive series of numerals 0 to 3 of large format representative of the tens of the date.
  • the pinions 32, 34 are each subjected to the action of a jumper 36, 37, respectively.
  • the records of units and tens 33, 35 are juxtaposed and allow the display of the date in two large respective windows 38, 39 formed in the dial of the watch ( figure 6 ).
  • the gear formed by the wheel of the units 29 and the pinion of the units 32 is shown in detail in FIG. figure 7 .
  • the teeth of wheel 29 and pinion 32 have an epicycloidal shape and each tooth of wheel 29, when aligned with the imaginary line passing through the respective centers of wheel 29 and pinion 32, is centered in a toothpick of pinion 32, and vice versa.
  • This arrangement of the teeth of the wheel of the units 29 and the pinion of the units 32 makes it possible at the same time to increase the depth of penetration of these toothing and to lock the date wheel 16, 28-31 in its angular position relative to the pinion.
  • Shuttle 11 ( figures 2 and 5 ) is pivotally mounted about the same axis as the tens pinion 34 and the tens disk 35, but is free to rotate relative to the pinion 34 and the disc 35.
  • a large pawl 40 articulated on the shuttle 11 cooperates with the cam correction device 31 for trailingly moving the date wheel 16, 28-31 by one or more steps depending on the angular position of the cam of the months 26 or the leap year cam 27 detected by the probe 24- 25 of the correction lever 4 when changing from the last day of a month of less than 31 days to the first day of the following month.
  • the date wheel 28 is engaged with a 31 teeth calendar intermediate wheel 41 mounted around the same axis as the gear of the units 32 and the disk of the units 33 but free to rotate with respect to this pinion 32 and this disk 33 ( figures 1 , 2 , 3 ).
  • the intermediate date wheel 41 meshes with a pinion gear 42 which itself meshes with a 31-toothed month wheel 43.
  • This wheel of the months 43 drives a month disc 44 coaxial with the wheel 43 months and having a finger 45 on its periphery, by means of a pin 46 secured to the wheel 43 and located in a hole 46 'of the disk 44 months larger than it ( figures 2 , 3 , 5 ).
  • the finger 45 of the month disc 44 cooperates at the end of each month with a pinion of months with 12 teeth 47 to drive it one step so that it performs one turn per year.
  • This pinion of the months 47 which is integral with the cam of the months 26, carries a month indication needle 48 associated with a display area of the months 49 on the dial of the watch ( figures 3 , 6 ) and is subjected to the action of a jumper 47 '(visible on the figure 2 ).
  • the pinion of the months 47 leads a 48-month-old wheel 50, with 48 teeth, mounted around the same axis as the wheel of the months 43 and the disk of the months 44 but free in rotation with respect to these, to cause it to because of a turn in four years.
  • a first 30-tooth year wheel 51 is integral with the 48-month wheel 50.
  • a second 30-tooth year wheel 52 mounted around the same axis as the month pinion 47 but free to rotate relative to this pinion 47 is driven by the first year wheel 51.
  • This second year wheel 52 which is secured to the leap year cam 27, carries a leap year indication needle 53 associated with a corresponding display area 54 on the dial of the watch.
  • the cam of the months 26 has a periphery whose radius, variable, depends on the number of days of months of the year, the angular position of this cam 26 defining the current month.
  • the periphery of the cam 26 has more precisely (cf. figure 5 ) large radius parts 55, corresponding to the months of 31 days, parts of intermediate radius 56, corresponding to the months of 30 days, and a part of small radius 57 (visible on the figure 2 ), corresponding to February of a non-leap year (28 days).
  • the leap year cam 27 has on its periphery a single hump 58 ( figure 5 ) associated with the month of February leap years.
  • the bump 58 of the leap year cam 27 occupies, during the February of each leap year, an angular position in which the angular sector defined by the hump 58 includes that defined by the lower portion 57 of the periphery of the cam of months 26 and, during the month of February of each non-leap year, an angular position in which the aforementioned angular sectors are separated.
  • the 24 hour wheel 7 carrying the pin 6 for driving the calendar finger 2 meshes with a second 24 hour wheel 59 mounted around the same axis as the star of the days 17 but free to rotate relative to this star of the days 17.
  • This second 24-hour wheel 59 carries a day / night indicator hand 60 associated with a corresponding day / night display area 61 on the dial of the watch, concentric with the display area of the days of the week. ( figure 6 ).
  • the perpetual calendar mechanism also comprises a device for displaying the moon phase.
  • This device comprises (cf. figures 1 , 2 , 9A ) a moon gear 62 driven by the date finger 2 at a rate per day and subjected to the action of a jumper 63.
  • the moon gear 62 carries a pinion gear 64 which meshes with a second pinion 65
  • a third gear 67 meshes with the second idler gear 65 and meshes with a moon wheel 68.
  • the meshing ratios between the first and second idler pinions 64, 65, between the second idler gear 65 and the box wheel 66 and between the third idler gear 67 and the moon wheel 68 are such that the box wheel 66 is driven stepwise by one step.
  • the moon wheel 68 defines a disk 69 having two diametrically opposite pellets 70 having the color, blue, of the sky, the remainder of the disk 69 having the color, yellow, moon ( Figure 9B ).
  • the window wheel 66 located above the moon wheel 68, defines a disc 71 having the blue color of the sky and having a circular aperture 72 of the same diameter as the pellets 70 ( Figure 9C ). In this device, the full moon appears through the window 72 when the latter is at the position at six o'clock and is between the two pellets 70.
  • the new moon appears, it, when the window 72 and one of the two pellets 70 are at noon. From this position at noon, the user will see the moon grow day after day in the right part of the wheels 66, 68 until the full moon and then decrease in the left part of the wheels 66, 68.
  • This display device of the moon phase is known per se. It was described by Mr. Philip Barat in his dissertation from the Engineering School of Geneva in June 1983.
  • the perpetual calendar mechanism further comprises correctors 73, 74, 75, 76 for manually correcting the angular position, respectively, of the date mobile 16, 28-31, the star of days 17, the moon gear 62 and pinion months 47.
  • These correctors 73-76 are actuated by pushbuttons (not shown) protruding from the edge of the watch.
  • Each of the correctors 73-75 is a simple pivoting member arranged to push a tooth of the date wheel 28, the star of the days 17 and the moon gear 62, respectively.
  • the corrector 76 associated with the pinion of the months 47 comprises (cf. figure 5 ) two pivoting parts 78, 79 of different pivot axes.
  • the piece 78 carries a pin 80 cooperating with a buttonhole 81 of the piece 79 and further comprises a finger 82 able to lift the correction lever 4 when it is in contact with the cam of the months 26 or the leap year cam 27 and a spout 83 able to push a tooth of the pinion 47 months after the finger 82 has raised the correction lever 4 to move the pinion of the months 47 of a step clockwise the hours and minutes of the watch.
  • the perpetual calendar mechanism according to the invention operates in the following manner.
  • the date latch 3 In the rest position, the date latch 3 is held by its return spring 12 against a stop 84 (visible on the figure 2 ) and the correction lever 4 is held by the return spring 13 acting on the shuttle 11 in a position where the feeler pin 25 bears against the periphery of the cam of the months 26 or the leap year cam 27 More specifically, in this rest position, the feeler pin 25 is in contact with an upper part 55 or an intermediate part 56 of the periphery of the cam of the months 26 when one is in a month of 31 days or of 30 days respectively, with the part of the periphery of the leap year cam 27 other than the hump 58 in the indentation corresponding to the lower part 57 of the cam of the months 26 when one is in a month of 28 days, or with the bump 58 of the leap year cam 27 when one is in a month of 29 days.
  • the angular position of the correction lever 4 in this rest position is different depending on the part of the periphery of the cam of the months 26 or of the leap year cam 27 that touches the feeler pin 25; to say according to the month where we are.
  • the time at which the date finger 2 comes into contact with the finger 10 depends on the aforementioned angular position of the correction rocker 4 in its rest position and therefore the number of days of the current month. The longer the current month has a large number of days, the more this time will be late and therefore less the amplitude of displacement of the correction lever 4 under the action of the date finger 2 will be large.
  • the rake 22 drives the shuttle 11 in rotation which causes the free end of the large pawl 40 to slide on the peripheral surface of the correction cam 31. During the days other than the last day one month less than 31 days, this sliding of the free end of the large pawl 40 has no effect on the angular position of the mobile date 16, 28-31.
  • the free end of the large pawl 40 comes into contact with the recess, designated at the figure 5 85, of the correction cam 31 and starts to push the cam 31 to move the date wheel 16, 28-31 in the clockwise direction of the hours and minutes respectively of a step, two steps or three steps so that the mobile date 16, 28-31 reaches an angular position corresponding to the date 31. Then, the correction lever 4 is released from the action of the date finger 2 and the return spring 13 make it fall so that it finds its position of rest. Because the large pawl 40 cooperates with the correction cam 31 during the progressive lifting of the correction lever 4, the movement of the date wheel 16, 28-31 by the large pawl 40 is trailing.
  • each displacement of a pitch of the date wheel 16, 28-31 by the large pawl 40 is broken down into a first slow movement, during which the large pawl 40 pushes the correction cam 31 against the action exerted by the jumper 20 until the top of a tooth of the date star 16 in contact with the jumper 20 reaches the tip, denoted by 86, of the latter and a second movement, rapid, caused by the fall of the jumper 20 on the other side of said tooth and from which the large pawl 40 momentarily loses contact with the recess 85.
  • the date finger 2 comes into contact with the finger 9 of the date latch 3, thus causing a progressive raising of this lever 3 against the action exerted by the return spring 12.
  • the end of the lifting of the date latch 3 occurs after the end of the lifting of the correction lever 4 but before the fall of the correction lever 4.
  • this lever 3 falls under the action of the return spring 12 to return to its rest position.
  • the first small pawl 14 catches a tooth of the date star 16 to move angularly and instantaneously this star 16 and therefore the mobile date 16, 28-31 of a step.
  • the second small pawl 15 catches a tooth of the star of the days 17 to angularly and instantaneously move this star 17 and thus the indicator needle of the days of the week 18 of a step for the indication of the next day.
  • This instantaneous displacement of a step of the date wheel 16, 28-31 and the star of the days 17 by the small pawls 14, 15 occurs each day, whether or not at the end of a month. less than 31 days. If the current day is the last day of a month of less than 31 days, this instantaneous displacement of a step of the date mobile 16, 28-31 will succeed the trailing displacement of this mobile by the large ratchet 40 to complete the change from the last day of the current month to the first day of the following month.
  • the large pawl 40 has no function and the instantaneous displacement of a step of the date mobile 16, 28-31 by the small pawl 14 is the only displacement that the date mobile 16, 28-31 undergoes.
  • the wheel units 29 of the date mobile 16, 28-31 moves the pinion of the units 32 one step to move the date unit displayed in the window 38 to the next unit, except once a month, when the mobile device of date 16, 28-31 is at an angular position corresponding to the date 31. In this position in fact, the teeth of the gear of the units 32 is opposite the empty space 29 'of the toothing of the wheel units 29 and is therefore not trained.
  • the disk of the units 33 remains stationary and the number 1 of the units remains displayed through the window 38.
  • the tens pinion 34 itself, is driven by the tens wheel 30 of the date wheel 16, 28-31 only four times a month, corresponding to the changes of the date ten, when the teeth of the tens pinion 34 are found in the path of one of the four teeth of the wheel dozens 30. Each time the tens pinion 34 is moved one step, the tens disk 35 secured to the pinion 34 also moves to display the tens the next date in box 39.
  • Each rotation of a step of the date wheel 16, 28-31 also causes, via the intermediate date wheel 41 and the idler gear 42, a rotation of a wheel step of the month 43 and the disk of the months. 44.
  • This rotation of a pitch of the wheel 43 and the disk 44 does however cause a rotation of the pinion of the months 47 by the finger 45 of the disk of the months 44 that when the date mobile 16, 28-31 passes from an angular position corresponding to the 31 at an angular position corresponding to the 1st , the finger 45 being the rest of the time outside the teeth of the pinion of the months 47.
  • Each rotation of a step of the pinion of the months 47 rotates a step the cam of the months 26 and the indicator hand of the month 48 located above the display area of the months 49 on the dial of the watch for the passage to the following month.
  • Each rotation of a step of the pinion of the months 47 also causes a rotation of one step of the 48-month-old wheel 50 which itself drives, by means of the wheels of year 51, 52, a rotation of a not the leap year cam 27 and the leap year indication needle 53 associated with the display area 54 on the watch face.
  • the fingers 9, 10 of the latches 3, 4 are shaped so that the fall of the date latch 3 always occurs before the fall of the correction lever 4.
  • the instantaneous movement of a step that makes the mobile every day of date 16, 28-31 during the fall of the date latch 3, displacement which, as explained above, causes a displacement of the pinion of the months 47 and the cam of the months 27 at the end of each month then occurs that the probe 24-25 of the correction lever 4 is remote from the peripheral surface of the cams 26, 27. In this way a blockage of the mechanism is avoided.
  • the angular position of the date wheel 16, 28-31, the star of the days 17, the moon gear 62 and the pinion of the months 47 can be corrected manually by means of the correctors 73-76 respectively, and this without risk of blockage.
  • Concerning more particularly the pinion of the months 47 it should be noted that a rotation of this pinion 47 by the corrector 76 never affects the angular position of the date mobile 16, 28-31. Indeed, when this rotation takes place while the finger 45 is out of the teeth of the pinion of the months 47, the disk of the months 44 can not be driven by the pinion of the months 47.
  • the present invention as described above has several advantages over and above those already mentioned.
  • One of them is that the indication of the change of date is carried out instantaneously most of the time, namely when passing from one day to the next within a month and during the passage of the last day of a month of 31 days to the first day of the following month, but with a reduced risk of seeing the mobile of date 16, 28-31 driven by its inertia in an undesired displacement, this thanks to the fact that the displacement of the date mobile 16, 28-31 during the changeover from the last day of a month of less than 31 days to the first day of the following month is made in part of trailing way. More particularly, it will be observed that, in the illustrated example, the instantaneous displacements of the date mobile 16, 28-31 are always limited to a single step.
  • Another advantage of the invention is that it allows, by the presence of the two latches 3, 4 respectively carrying the small pawl 14 and the large pawl 40, to create a sufficient displacement angle for the pawls 14, 40 while releasing space for another display device, namely, in the example illustrated, the device for displaying the moon phase 62-68, and while allowing a large format display of the date by two juxtaposed disks 33, 35
  • the mechanism according to the invention allows a user-friendly layout of different display areas that are easily readable on the dial of the watch.

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Claims (9)

  1. Ewiger oder jährlicher Kalendermechanismus, der ein Kalenderdrehteil (16, 28 bis 31) und Mittel (2, 3, 4, 14, 40) zum Antrieb des Kalenderdrehteils umfasst, wobei die Antriebsmittel (2, 3, 4, 14, 40) eine erste Wippe (3), die einen ersten Sperrkegel (14) trägt, der mit einem Kalenderrad (16) des Kalenderdrehteils (16, 28 bis 31) zusammenwirkt, um das Kalenderdrehteil (16, 28 bis 31) beim Übergang von einem Tag zum folgenden innerhalb eines Monats und beim Übergang vom letzten Tag eines Monats mit 31 Tagen zum ersten Tag des folgenden Monats augenblicklich zu verschieben, eine zweite Wippe (4), die einen zweiten Sperrkegel (40) antreibt, der mit einem Korrekturorgan (31) des Kalenderdrehteils (16, 28 bis 31) zusammenwirkt, um das Kalenderdrehteil (16, 28 bis 31) beim Übergang vom letzten Tag eines Monats mit weniger als 31 Tagen zum ersten Tag des folgenden Monats schleppend zu verschieben, bis das Kalenderdrehteil (16, 28 bis 31) eine Stellung erreicht, die dem 31. entspricht, bevor der erste Sperrkegel (14) dieses Kalenderdrehteil (16, 28 bis 31) augenblicklich um einen Schritt verschiebt, und Mittel (2) zum Antrieb der ersten und der zweiten Wippe (3, 4) umfassen, wobei die Mittel zum Antrieb der ersten und der zweiten Wippe ein Antriebsorgan (2) umfassen, das mit entsprechenden Fingern (9, 10) der ersten und der zweiten Wippe (3, 4) zusammenwirkt, um diese Wippen (3, 4) jeden Tag nach und nach gegen elastische Mittel (12, 13) anzuheben, wobei die Verschiebungen des Kalenderdrehteils (16, 28 bis 31) durch den zweiten Sperrkegel (40) beim Anheben der zweiten Wippe (4) durchgeführt werden und die Verschiebungen des Kalenderdrehteils (16, 28 bis 31) durch den ersten Sperrkegel (14) bei einem Fall der ersten Wippe (3) nach ihrem Anheben durchgeführt werden.
  2. Kalendermechanismus nach Anspruch 1, dadurch gekennzeichnet, dass die zweite Wippe (4) ein Tastorgan (25) umfasst, das in der Ruhestellung vor dem Anheben der zweiten Wippe (4) mit einer Monatskurvenscheibe (26) oder einer Schaltjahr-Kurvenscheibe (27) in Berührung ist, um eine Anhebungsweite der zweiten Wippe (4) abzugrenzen, die von der Anzahl der Tage des aktuellen Monats abhängig ist, und dadurch, dass der Fall der ersten Wippe (3) vor dem Fall der zweiten Wippe (4) erfolgt, derart, dass während der augenblicklichen Verschiebung des Kalenderdrehteils (16, 28 bis 31) durch den ersten Sperrkegel (14) beim Übergang vom letzten Tag eines Monats zum ersten Tag des folgenden Monats eine Blockierung des Mechanismus vermieden wird.
  3. Kalendermechanismus nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass die erste und die zweite Wippe (3, 4) um eine selbe Achse (5) drehbar sind.
  4. Kalendermechanismus nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass jede der ersten und der zweiten Wippe (3, 4) angepasst ist, damit ihr Schwerpunkt sich im Wesentlichen auf ihrer Schwenkachse (5) befindet.
  5. Kalendermechanismus nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, dass er ferner ein erstes und ein zweites Anzeigeorgan (33, 35) umfasst, die nebeneinander gelagert sind und jeweils Ziffern, die die Einheiten des Kalenders darstellen, und Ziffern tragen, die die Zehnerstellen des Kalenders darstellen, und dadurch, dass das erste und das zweite Anzeigeorgan (33, 35) durch einen Trieb für die Einheiten (32) beziehungsweise einen Trieb für die Zehnerstellen (34) getragen werden, die in ein Rad für die Einheiten (29) und ein Rad für die Zehnerstellen (30) des Kalenderdrehteils (16, 28 bis 31) eingreifen.
  6. Kalendermechanismus nach Anspruch 5, dadurch gekennzeichnet, dass der zweite Sperrkegel (40) durch ein Schiffchen (11) getragen wird, das um dieselbe Achse wie der Zehnerstellentrieb (34) drehbar gelagert ist und einen Rechen (22) umfasst, der mit einem Rechen (23) der zweiten Wippe (4) im Eingriff ist.
  7. Kalendermechanismus nach Anspruch 5 oder 6, dadurch gekennzeichnet, dass die Zähne des Rades (29) für die Einheiten und des Triebs (32) für die Einheiten eine epizykloide Form aufweisen und jeder Zahn des Rades für die Einheiten (29), wenn er mit der gedachten Linie fluchtet, die durch die jeweiligen Mittelpunkte des Rades (29) für die Einheiten und des Triebs (32) für die Einheiten verläuft, in einem Zahnzwischenraum des Triebs (32) für die Einheiten zentriert ist.
  8. Kalendermechanismus nach einem der Ansprüche 1 bis 7, dadurch gekennzeichnet, dass er einen Monatstrieb (47) umfasst, der ein Monatsanzeigeorgan (48) trägt, dadurch, dass dieser Monatstrieb (47) durch eine Scheibe (44) angetrieben wird, die auf ihrer Peripherie einen Finger (45) aufweist und selbst durch ein Rad (43), das koaxial mit der Scheibe (44) ist, über einen Sperrstift (46) angetrieben wird, der fest mit dem Rad (43) verbunden ist und sich in einer Öffnung (46') der Scheibe (44) befindet, wobei das Rad (43) selbst durch das Kalenderdrehteil (16, 28 bis 31) über Getriebe (41, 42) angetrieben wird, und dadurch, dass die Öffnung (46') der Scheibe (44) größer ist als diejenige des Sperrstifts (46), derart, dass bei einer Korrektur der Winkelstellung des Monatstriebs (47) durch einen Korrektor (76), der manuell betätigt werden kann, eine Verschiebung der Scheibe (44) durch den Monatstrieb (47) die Winkelstellung des Rades (43) nicht beeinträchtigt.
  9. Uhr, die einen Kalendermechanismus nach einem der Ansprüche 1 bis 8 umfasst.
EP05005083.0A 2004-04-14 2005-03-09 Perpetual calendar mechanism Active EP1586962B9 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH00648/04A CH697662B1 (fr) 2004-04-14 2004-04-14 Mécanisme de quantième perpétuel ou annuel.
CH6482004 2004-04-14

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EP1586962A2 EP1586962A2 (de) 2005-10-19
EP1586962A3 EP1586962A3 (de) 2008-09-10
EP1586962B1 true EP1586962B1 (de) 2013-07-17
EP1586962B9 EP1586962B9 (de) 2013-10-09

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EP (1) EP1586962B9 (de)
JP (1) JP4504863B2 (de)
CH (1) CH697662B1 (de)
HK (1) HK1075940A1 (de)

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Also Published As

Publication number Publication date
EP1586962B9 (de) 2013-10-09
EP1586962A2 (de) 2005-10-19
EP1586962A3 (de) 2008-09-10
CH697662B1 (fr) 2009-01-15
US20050232085A1 (en) 2005-10-20
JP4504863B2 (ja) 2010-07-14
HK1075940A1 (en) 2005-12-30
JP2005300548A (ja) 2005-10-27
US7706214B2 (en) 2010-04-27

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