EP3295260B1 - Annual calendar for mechanical watches - Google Patents

Annual calendar for mechanical watches Download PDF

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Publication number
EP3295260B1
EP3295260B1 EP16723240.4A EP16723240A EP3295260B1 EP 3295260 B1 EP3295260 B1 EP 3295260B1 EP 16723240 A EP16723240 A EP 16723240A EP 3295260 B1 EP3295260 B1 EP 3295260B1
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EP
European Patent Office
Prior art keywords
wheel
date
driving device
month
driver
Prior art date
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Application number
EP16723240.4A
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German (de)
French (fr)
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EP3295260A1 (en
Inventor
Joachim Mutrux
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.)
Bucherer AG
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Bucherer AG
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Publication of EP3295260A1 publication Critical patent/EP3295260A1/en
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    • GPHYSICS
    • G04HOROLOGY
    • G04BMECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
    • G04B19/00Indicating the time by visual means
    • G04B19/24Clocks or watches with date or week-day indicators, i.e. calendar clocks or watches; Clockwork calendars
    • G04B19/243Clocks or watches with date or week-day indicators, i.e. calendar clocks or watches; Clockwork calendars characterised by the shape of the date indicator
    • G04B19/247Clocks 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
    • G04B19/253Driving or releasing mechanisms
    • G04B19/25333Driving or releasing mechanisms wherein the date indicators are driven or released mechanically by a clockwork movement
    • G04B19/25353Driving or releasing mechanisms wherein the date indicators are driven or released mechanically by a clockwork movement driven or released stepwise by the clockwork movement
    • G04B19/2536Driving 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 invention relates to the field of date display devices for mechanical watches and in particular to an annual calendar.
  • JP 2651150 shows an annual calendar in which a mechanism causes a wheel carrying the date display to be advanced by two units only at the end of a short month.
  • a drive wheel provided for this purpose which carries a driver, is arranged in a stationary manner.
  • US 2,886,910 shows a calendar mechanism in which a lever at the end of each month reads the information coded by a wheel via a pin, whether the month in question is long or short.
  • a driver which is firmly screwed onto a gearwheel with a specified axis of rotation, actuates the calendar mechanism.
  • CH 705901 shows different annual calendars.
  • a driver causes a wheel carrying the date display to switch directly from the 30th to the 1st day at the end of a short month.
  • the date display device has a drive wheel which is coupled to the clockwork of the mechanical watch.
  • the device is driven via this coupling and thus a time signal is also introduced into the device.
  • a device Connected to and driven by the drive wheel is a device which in turn interacts with a date wheel at regular intervals and drives it.
  • This device is referred to below as a "driver deviceā€.
  • the device has a monthly wheel which interacts directly or via intermediate wheels with the date wheel and which assumes an angular position representing the month of the year.
  • the coupling of the drive wheel to the clockwork is particularly fixed in the sense that movement of the clockwork causes a corresponding movement of the drive wheel at all times - in particular, the drive wheel is coupled to the clockwork via a gear connection.
  • the angular position of the date wheel - which can be a date gear - is characteristic of the date, which can be used directly or indirectly, via an element coupled to the date wheel, for the date display.
  • the entraining device has a unit called a "entrainer" which, for example, comes into direct contact with the date wheel, and an axis of rotation about which the entrainer rotates.
  • the path on which the driver moves about the axis of rotation is designed, for example, but not necessarily, as a circular path.
  • the driver can also interact indirectly with the date wheel, for example via intermediate wheels and / or pins.
  • the driving device can assume at least two positions, which differ by their position relative to the date wheel or the axis of rotation of the date wheel, and consequently by the angle by which the driving device rotates the date wheel per interaction. If the entraining device rotates the date wheel per interaction in a first position by one unit, it rotates the date wheel per interaction in a second position by a plurality of units. The device is set up at a predetermined angular position of the date wheel (corresponding to the end of the month, in particular the 30th of the month) or not to bring the driving device from the first to the second position depending on a state of the month wheel.
  • the fact that the entrainment device can assume two positions relative to the date wheel means that the entrainment device as a whole can assume two positions relative to the date wheel, ie in particular also to the Axis of rotation of the driving device - ie the two positions differ in particular not only by different rotating positions of the driving devices.
  • a monthly cam disk which may encode the length of the month and, depending on its angular position, may or may not move to the second position, may also be coupled to the monthly wheel.
  • Date display devices of the type claimed herein are often considered examples of so-called complications. In the present case, however, this should not constitute a statement about the complexity of the device; rather, the approach according to the invention enables a particularly simple and, if necessary, a particularly well integrated structure in the clockwork.
  • the same mechanism is used both for advancing the date wheel by one day on a regular date change and for advancing the date wheel by more than one day at the end of a shorter month ,
  • the difference between advancing by one or more days is therefore not caused by different mechanisms as known from the prior art and also not by drive paths of different widths (e.g. rotations of different sizes) of the driving mechanism, but by setting a relative position of the driving mechanism Mechanism (driving device) and the date wheel.
  • the relative movement between the first and the second position is, for example, a movement of the driving device relative to the other parts of the device, so the date wheel is then fixed in its position.
  • the reverse movement of the date wheel with, for example, a fixed path of the driving device is not excluded.
  • the first of the two positions corresponds to the normal position, which is constantly occupied with the exception of the end of the month.
  • the second position is taken in short months at the end of the month, so that the date wheel skips a day in its movement when interacting with the driving device.
  • the positions of the driving device and date wheel can change both in their horizontal, i.e. distinguish in a plane parallel to the plane of the date wheel, as well as vertical positions.
  • the axis of rotation of the driving device in the second position, can be closer to the axis of rotation of the date wheel than in the first position.
  • the different relative positions can also be realized differently, for example by different positions perpendicular to the plane.
  • the date wheel has means to position the driver in each position with the driver in a position-dependent manner Way to interact.
  • a change in the angle by which the date wheel rotates per interaction with the driving device can be realized, for example, in that the overlap between the path on which the teeth of the date wheel move and the path of the driver increases accordingly.
  • the rotation of the date wheel is realized, for example, in that the driver hooks with the teeth of the date wheel and pulls it with it before the driver and date wheel decouple due to their different paths. If the axis of rotation of the driver in the second position is closer to the axis of rotation of the date device, the latter attacks and is in engagement with the date wheel over a longer distance than in the first position. In order to compensate for the unequal distances, the driver can be radially resilient.
  • the driver is designed as a driver head or driver pin. This can move on a circular path around its axis of rotation.
  • the driver and the axis of rotation are preferably connected such that the driver is spring-mounted radially to its path.
  • this connection is designed, for example, in such a way that the driver is rigidly connected directly or indirectly tangentially to the track with the drive wheel. This can be achieved, for example, by the driver being held on a resilient arm running approximately in the circumferential direction.
  • the connection between the driver and its axis of rotation can be configured in a spiral.
  • the driver device can also have optional stops, which define a maximum radial and / or tangential deflection of the driver. These can be designed in such a way that they define different positions which the driver can assume. Alternatively or in addition, they can also protect against excessive mechanical action, which could result in damage to the driving device.
  • the axis of rotation of the driving device is identical to that of the drive wheel driving the driving device.
  • the axis of the drive wheel is not fixed, for example, but can be moved between different positions - in particular according to the positions of the driving device.
  • the driver device can be designed such that the driver interacts with the date wheel once per complete revolution of the drive wheel.
  • the driver device can be fixedly connected to the drive wheel, for example by the rotational axes of the drive wheel and driver device being coupled in a rotationally fixed manner.
  • the driver can directly, i.e. without any intervening elements, contact the date wheel.
  • the shape of the teeth of the date wheel and the shape of the driver are coordinated with one another in such a way that they engage in one another with a precise fit. Furthermore, these can be designed such that small angular position errors that occur are automatically corrected. The fault tolerance is further increased by a radially resilient, tangentially rigid mounting of the driver.
  • An embodiment for realizing at least two different positions of the driving device relative to the date wheel additionally has a coupling rocker on which the axis of rotation of the driving device sits.
  • the axis of rotation of the driver device does not coincide with that of the coupling rocker.
  • the at least two positions of the driving device are given by at least two states of the coupling rocker, which differ in the orientation of the coupling rocker.
  • the coupling rocker can have a spring leaf and one or more coupling parts, for example each in the form of a coupling pin, a roller, a stop surface, etc.
  • the spring leaf presses the coupling part (s) in a certain direction against one or more components of the device or the watch. This makes it possible for the state of the coupling rocker to be dependent on the position, orientation and / or on the state of other components.
  • the date wheel or a separate element coupled to it can have a track, for example above or below the toothing, which has a recess in the angular position of the date wheel that identifies the 30th day of the month. If the one coupling part - for example a coupling part designed as a roller - is pressed into the recess, the coupling rocker changes to the second position.
  • the spring leaf also presses a second coupling part present on the coupling rocker - for example a pin against the monthly cam and at the same time the first coupling part against the running track.
  • the first coupling section e.g. roller
  • the second coupling section e.g. pen
  • the coupling rocker it becomes possible for the coupling rocker to switch to a second state, in which the driving device is in the second position, if the first coupling section identifies the 30th day of the month and at the same time the second coupling section identifies a month with only 30 days. This can be done in such a way that in a month with 30 or fewer days, the second coupling section does not lie on the monthly cam disc and therefore does not prevent the second coupling section from running into the recess in the track.
  • a monthly cam disc of the type mentioned can be arranged above or below the monthly wheel, the axis of rotation of the monthly cam disc being identical to that of the monthly wheel and connected to it in a rotationally fixed manner.
  • Monthly cam and monthly wheel can also be made from one piece.
  • the axis of rotation of a gearwheel which interacts with the clockwork on the one hand and with the drive wheel on the other hand, coincides with the axis of rotation of the coupling rocker. This ensures that this gear remains connected to both the drive wheel and the movement regardless of the position assumed by the coupling rocker or the driving device.
  • angular positions for the date wheel 31 which are defined by 31 equidistantly spaced teeth.
  • the driver device rotates the date wheel per day and interaction around a tooth in a first position relative to the date wheel. If the driver device is in a second position relative to the date wheel, two teeth are propelled during an interaction. In particular, in the second position, the driver device will be closer to the date wheel and the driver will engage a tooth that is further forward in relation to the direction of rotation.
  • the date wheel can also have n ā‡ 31 teeth, where n is an integer.
  • the driving device in the first position rotates the date wheel by 360 / (31 ā‡ n ) degrees and by 2 ā‡ 360 / (31 ā‡ n ) degrees if the driving device is in a second Position.
  • Embodiments are also conceivable in which the driver device rotates several times per day about its own axis or in which the driver device has at least two drivers.
  • the above in particular the doubling of the angle by which the date wheel rotates per interaction, is implemented analogously.
  • the date wheel interacts directly, i.e. without intermediate gears, with the monthly wheel.
  • the monthly wheel and the date wheel have means which enable the monthly wheel to be rotated by the date wheel.
  • the date wheel can have a monthly wheel driving pin, which is arranged such that by itself or in combination with other monthly wheel driving pins, after a month has passed, the monthly wheel has turned to the angular position characteristic of the beginning of the month.
  • the monthly bicycle driving pin can in particular engage directly in the toothing of the monthly bicycle.
  • the monthly wheel 12 can assume defined angular positions, which are defined, for example, by 12 equidistantly spaced teeth. If the date wheel also rotates about its own axis once a month, an interaction between the date wheel and the monthly wheel on the last day of each month is sufficient for the monthly wheel to take the correct angular position for the beginning of the month.
  • the device has means which enable the user to visually read, preferably the complete date, consisting of the current day of the month, the day of the week and the current month, or at least the current day of the month, on the dial of the watch.
  • the date wheel 31 and the monthly wheel 12 can assume defined angular positions, this can be done by means of visualization which are coupled directly to the corresponding gear wheel.
  • a corresponding day wheel which can assume seven defined angular positions and interacts once a day with the drive wheel or date wheel, can be implemented in a manner known per se.
  • the device can have lever springs which engage with the various gear wheels, in particular with the date wheel and / or the monthly wheel, when these assume a predetermined, defined angular position.
  • the accuracy of the angular position taken up by the various gears can be increased and, at the same time, they can be locked.
  • the latter increases the reliability of the watch against external disturbances, for example due to shocks.
  • the date display device has a device with which the date can be easily moved back and forth by the user.
  • This is realized in that the axis of rotation of the driving device relative to the date wheel can assume a further position, hereinafter referred to as "third", in which the driving device does not interact with the date wheel. Switching to this The third position is initiated by the user by actuating (for example pulling out) a crown attached to the outside of the watch case. As soon as the driver device is in this third position, the date can be set via the crown attached to the housing, for example by rotating the crown. It is possible to move the date back and forth.
  • Embodiments can be based on the coupling rocker described above, the crown attached to the outside of the housing and a gearwheel which is coupled to the crown and begins to interact directly or indirectly with the date wheel as soon as the switching to the third position of the driving device has been initiated via the crown ,
  • the coupling between this gear and the crown is designed so that the date is simple, e.g. by turning the crown.
  • the coupling rocker has at least one decoupling section, for example in the form of a decoupling pin. This serves to translate the position of the crown relative to the housing of the watch into an alignment of the coupling rocker. For example. pulling out the crown is implemented via the decoupling section in such a way that the axis of rotation of the driving device assumes the third position. In this third position, the path of the driver does not overlap with that of the teeth of the date wheel. Consequently, the date wheel, monthly wheel and all other elements of the device, which lead to a date indicated on the dial, are decoupled from the drive wheel and thus from the clockwork itself.
  • decoupling section for example in the form of a decoupling pin.
  • the device can furthermore have a decoupling rocker with at least two defined states.
  • the decoupling rocker which in turn has a spring leaf, an axis of rotation and elements can have, with which different states of the decoupling rocker can be defined and which enable switching between the different states.
  • the decoupling rocker interacts directly or indirectly with the crown and the coupling rocker, or the decoupling part, and ensures that a change in the relative position of the crown attached outside the housing leads to a corresponding change in the alignment of the coupling rocker and thus the position of the axis of rotation of the driving device leads.
  • the gearwheel which can be switched on and then interacts with the crown and the date wheel, can be arranged on such a decoupling rocker but not on its axis of rotation.
  • the entraining device can assume other positions in addition to the discussed first, second and possibly third position.
  • the embodiment just described for positioning the driver device is in fact a mechanical implementation of the principle of classic AND logic. This is the case because each button queries information relevant to the date and, via its rigid connection to the coupling rocker, allows the rocker to switch if the queried date state arrives. However, the rocker switches to a different position only if all queries of the date status relevant for this position deliver a corresponding result. Based on this, extensions of the annual calendar according to the invention, for example in the direction of a perpetual calendar, are conceivable.
  • a mechanical watch is also part of the subject of the invention.
  • a device also has a clockwork and a time display with at least two hands and a dial, all of which can be designed in a manner known per se.
  • Figures 1a and 1b show an outdoor ( Fig. 1a ) and an inside view ( Fig. 1b ) a mechanical watch 100 with an annual calendar, in which the day of the month and the month itself are displayed in addition to the time.
  • a mechanical watch 100 with an annual calendar, in which the day of the month and the month itself are displayed in addition to the time.
  • Such a watch has the following elements: a dial 12, on which devices (for example indices) are attached which, in combination with hands or other visualization methods, make it possible to read the time, the day of the month and the month.
  • a minute 102, hour 103 and month hand 104 as well as a day display 105 attached radially on the outside of the dial in the embodiment shown.
  • the clock shown has a setting device 13 and a complication for displaying the moon phase (moon phase clock 101 ) with an associated pointer 106.
  • the setting device can be closed at its end located outside the clock by a crown (not shown), the crown being, for example, firmly connected to the setting plate.
  • the mechanics of the annual calendar include the following in Fig. 1b Easily recognizable elements on: idler gear 2, transfer date gear 3, monthly gear 5, axis of rotation 7.4 of the drive wheel 8, which in the embodiment shown is identical to the axis of rotation 8.3 of the driver 8.1, a gear 15 for coupling the annual calendar to the mechanical watch and its Axis of rotation 7.8. Furthermore, the pointers for reading are also in the interior view for better orientation Minutes 102, hours 103, month 104 and moon phase 106 added.
  • the watch itself is closed by a housing 14.
  • FIG. 2 shows the components required for the implementation of the annual calendar and their interaction.
  • the annual calendar is driven by the drive wheel 8 which is connected to the clockwork via the gear wheel 15.
  • the axis of rotation 7.4 of the drive wheel is mounted on a coupling rocker 7 and is designed such that the drive wheel rotates once a day, ie by 360 Ā°, about the axis of rotation 7.4 given by the position of the coupling rocker.
  • a drive device is connected to the drive wheel, which has a drive designed as a drive head 8.1 and an axis of rotation 8.3.
  • the axis of rotation 8.3 of the driver head 8.1 coincides with the axis of rotation 7.4 of the drive wheel 8, these two axes of rotation being connected to one another in a rotationally fixed manner.
  • the driver head 8.1 also rotates completely around its axis 8.3 once a day.
  • the driver head 8.1 is designed such that it interacts with a date wheel 4 once a day.
  • the date wheel 4 is designed as a toothed wheel with 31 teeth arranged equidistantly on a given radius.
  • the date wheel also has a track 4.2 and a monthly wheel driving pin 4.1.
  • Figure 5 shows a detailed view of an exposed date wheel 4.
  • the track 4.2 is designed as a circular disc which has a semicircular recess 4.3 at one point radially on the outside.
  • the date wheel 4 interacts with a month wheel 5 via the monthly wheel driving pin 4.1.
  • the monthly wheel 5 has twelve teeth arranged equidistantly on a given radius.
  • a monthly cam 6 is firmly connected to the monthly wheel.
  • Figure 6 shows a detailed view of an exposed monthly wheel with monthly cam.
  • the month wheel driving pin 4.1 is arranged on the date wheel 4 in such a way that it hooks with a jag of the month wheel once per complete rotation of the date wheel 4 and pulls it one position further as it progresses on its circular path. This ensures that after twelve complete rotations of the date wheel, the monthly wheel has rotated once completely, ie by 360 Ā°, around its axis.
  • the reference symbol 5.1 denotes a fixing opening 5.1 which penetrates the monthly cam disc centrally, the center of which coincides with the axes of rotation of the monthly wheel and the monthly cam disc.
  • Lever springs 16 ensure that the gears assume only well-defined angular positions and that they remain in these angular positions until the next interaction takes place with another element of the device or the watch.
  • the lever springs also prevent external influences from causing malfunctions.
  • the coupling rocker 7 and thus the axes of rotation 7.4 / 8.3 of the drive wheel 8 or the driver head 8.1 take two positions.
  • the coupling rocker 7 is designed in a Y-shape, the three ends of the coupling rocker given by the Y-shape having elements for interaction with other components of the annual calendar.
  • FIG. 7 Shows for better visualization Figure 7 a detailed view of an exposed coupling rocker.
  • the head end 7.6 of the coupling rocker has a roller 7.2 and a coupling pin 7.1.
  • the coupling pin 7.1 scans the monthly cam 6, which is divided into twelve segments. These segments are arranged in such a way that they are clearly related to the positions of the months given by the gear wheels of the monthly wheel 5, in that the monthly cam 6 is connected to the monthly wheel 5 in a rotationally fixed manner. Furthermore, the segments differ in their radii in that they have one of two possible radii. The larger of the two radii encodes a month with 31 days, while the smaller of the two radii stands for a month with 30 days.
  • the coupling rocker 7 is pressed due to a spring force generated by a spring leaf 7.3 in the direction of the date wheel 4, so that the roller 7.2 rolls on the track 4.2.
  • the roller 7.2 reaches a recess 4.3, as a result of which the track cannot prevent the coupling rocker from moving towards the date wheel.
  • the coupling pin 7.1 is now in the region of a segment which has the larger of the two radii, then the coupling pin 7.1 in contact with the corresponding segment of the monthly cam disc prevents the roller from being pressed into the recess 4.3.
  • the coupling rocker and thus the axes of rotation 7.4 / 8.3 of the drive wheel or the driving head therefore remain in the first position, which means that the driving head 8.1 continues to pro complete circulation pulls the date wheel 4 by exactly one position, as if the roller 7.2 is not in the recess 4.3 of the track 4.2.
  • the coupling pin 7.1 lies in the area of a segment which has the smaller of the two radii, the coupling pin cannot prevent a change in position of the coupling rocker 7 as soon as the roller comes into the area of the recess 4.3 of the track 4.2.
  • the coupling rocker rotates about its axis of rotation 7.8, and the axes of rotation 7.4 / 8.3 of the drive wheel or the driving head move in the direction of the date wheel 4. The latter leads to the overlap of the path on which the driving head and the path move which the 31 teeth of the date wheel are arranged enlarged.
  • a fixing opening 7.8 and a further coupling pin 7.9 are also shown.
  • the axis of the fixing opening coincides with the axis of rotation of the coupling rocker and with that of, for example, in Figure 2 shown gear 15 together, which accomplishes the coupling of the annual calendar with the clockwork.
  • This construction ensures that the gear 15 has an interaction on the one hand with the clockwork itself and on the other hand with the drive wheel, which is independent of the position of the coupling rocker 7.
  • the interaction between the driving head 8.1 and the date wheel 4 occurs in that the circle on which the driving head moves and the circle on which the 31 teeth of the date wheel are arranged partially overlap in such a way that the driving head hooks with a tooth of the date wheel and this entails as it progresses on its circular path. If the overlap of the webs is greater in the second position of the driving device, enlarged the distance over which the date wheel is taken also changes accordingly: the date wheel is adjusted by two units.
  • the recess 4.3 and the roller 7.2 are designed by this mechanism in such a way that at the end of the 30th day of a month, which is identified as 30 days with the monthly cam 6, the driving head pulls the date wheel by two units with it. After this one day, the roller leaves the recess 4.3 again, as a result of which the driving head again assumes the position retracted relative to the date wheel. As a result, when it subsequently interacts with the date wheel, the driving head pulls it back only by one position.
  • the driver head is supported in a radially resilient manner.
  • this is realized in that the connection between the driver head 8.1 and the axis of rotation 8.4 of the driver head is designed to be elastically deformable. This enables the driver head to temporarily shift its position in the direction of its axis of rotation if a correspondingly directed force is exerted on the driver head by the date wheel.
  • the driver head can be designed in such a way that an alignment of the driver head caused by the position of its axis of rotation, which is changed relative to the teeth of the date wheel, cannot lead to tilting.
  • a further advantage of a radially resilient mounting of the driving head is that the driving head is designed accordingly is pressed between the teeth of the date wheel.
  • the mechanism on which the device is based is drawn step by step.
  • the length of the month is encoded by segmenting cam 6.
  • a segment with a larger radius corresponds to a month with 31 days and a segment with a smaller radius corresponds to a month with 30 days.
  • H the larger radius
  • L the smaller radius
  • the monthly cam disc has the following sequence of radii for the months January to December: HLHLHLHHLHLH.
  • Figure 4a shows the starting position on the 29th day of a month with 30 days.
  • the roller 7.2 is still in front of the recess 4.3, which prevents switching of the coupling rocker, although the coupling pin 7.1 would not prevent it.
  • the axis of rotation 8.3 of the driver head 8.1 remains in the retracted position with respect to the date wheel 4 and the driver head pulls the date wheel by only one position in the upcoming interaction.
  • Figure 4b shows the situation on the 30th day of a month with 30 days. Since the coupling pin 7.1 is located over a segment of the cam plate 6 which has a small radius, running of the roller 7.2 into the recess 4.3 is not prevented. As a result, the coupling rocker rotates and the axis of rotation 8.3 of the driving device changes to the position closer to the date wheel. As a result, the driver head pulls the date wheel by two positions in the upcoming interaction.
  • Figure 4c shows the situation on the first day of the following month.
  • the roller 7.2 has left the recess 4.3 again.
  • the coupling rocker has turned back into its original position, whereby the axis of rotation 8.3 of the driving device again assumes the position retracted from the date wheel.
  • Figure 4d shows the situation on the 30th day of a month with 31 days. Since it is a month with 31 days, the coupling pin 7.1 is located over a segment of the cam 6, which has a large radius. By the coupling pin resting on the segment, switching of the coupling rocker and thus the axis of rotation of the driving device is prevented.
  • Figure 4e shows the situation on the 31st day of a month with 31 days.
  • Both the coupling pin 7.1 and the roller 7.2 now prevent switching of the coupling rocker, as a result of which the axis of rotation 8.4 of the driving device remains in the position retracted from the date wheel.
  • the driving head 8.1 pulls the date wheel 4 only on this day by one position to the first day of the following month.
  • the watch has a mechanism that enables the date display to be uncoupled and driven by the clockwork.
  • the elements which, in an exemplary embodiment, transfer control of the date display from the drive wheel 8 to the setting gear 11 are also shown in FIG Fig. 2 shown. This mechanism is now described in the Figures 3a - 3c detailed views shown explained.
  • the mechanism is based on a decoupling rocker 9 ( Figure 3a ), which has two mutually angled surfaces at the end 9.1 lying against the coupling rocker 7.
  • a decoupling rocker 9 Figure 3a
  • the decoupling rocker has a coupling pin 9.3 located against an adjusting device 13, a spring leaf 9.2 on the side and a fixing opening 9.7, the center of the fixing opening coinciding with the axis of rotation of the decoupling rocker.
  • the mechanism has a deflection element 10.
  • Figure 3b shows the situation in which the date is controlled by the mechanical annual calendar.
  • the adjusting device 13 is in its maximum basic position let into the housing. In this position, the deflection element 10 and the decoupling rocker 9 assume an alignment, which leads to the fact that a decoupling pin 7.5 attached to the underside of a foot part 7.7 of the coupling rocker 7 rests on the coupling surface 9.5 (see also Figures 7 and 3.c ).
  • Figure 3c shows the mechanism which causes the control over the date display to change from the clockwork to the setting device 13.
  • the arrows shown denote directions of movements which can be carried out by the corresponding elements during steps i to vi.
  • Pulling the setting device 13 (step i) out of the housing 14 in the radial direction up to a stop or locking point (not shown) leads to the deflecting element 10 pushing the coupling pin 9.3 towards the center of the watch (step ii) and that end 9.1 of the decoupling rocker, which is located towards the coupling rocker, rotates radially outward (step iii).
  • the decoupling pin 7.5 changes from the coupling surface 9.5 to the decoupling surface 9.6, which leads to the fact that the axis of rotation 8.3 located on the coupling rocker 7 of the driving head 8.1 from the date wheel 4 so far (step iv) that the path on which the driving head moves and the circle on which the 31 teeth of the date wheel are arranged no longer overlap.
  • the date display is decoupled from the drive wheel and thus from the clockwork. This occurs simultaneously with the decoupling of the date display and drive wheel Fig. 2 shown setting gear 11 in contact with the display ring gear 1 and with the thread of the adjusting device 13. This makes it possible to turn the date by rotating the adjusting device (step v) both forward and backward (step vi).

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  • Electromechanical Clocks (AREA)

Description

Die Erfindung betrifft das Gebiet der Datumsanzeige-Vorrichtungen fĆ¼r mechanische Uhren und insbesondere einen Jahreskalender.The invention relates to the field of date display devices for mechanical watches and in particular to an annual calendar.

Komplikationen, welche dazu dienen, auf dem Zifferblatt einer von einem mechanischen Uhrwerk angetriebenen Uhr das Datum anzuzeigen, sind weit verbreitet. Dabei wird unter anderem zwischen einfachen Kalendern mit Datumsanzeigen ohne besondere Vorkehrungen fĆ¼r Unterschiede der MonatslƤngen, Jahreskalendern und ewigen Kalendern unterschieden. Bei Jahreskalendern wird der aktuelle Monat angezeigt oder zumindest dessen LƤnge (30 oder 31 Tage) kodiert und das Datum dementsprechend geschaltet, indem die Anzeige des 31. Tages eines Monats bei Monaten mit nur 30 Tagen automatisch Ć¼bersprungen wird. Jahreskalender benƶtigen einmal pro Jahr (Ende Februar) eine manuelle Korrektur des Datums, um dem Umstand Rechnung zu tragen, dass der Monat Februar nur 28 oder 29 Tage hat.Complications that serve to indicate the date on the dial of a clock driven by a mechanical clockwork are widespread. A distinction is made, among other things, between simple calendars with date displays without special provisions for differences in the length of the month, annual calendar and perpetual calendar. For annual calendars, the current month is displayed or at least its length (30 or 31 days) is encoded and the date is switched accordingly by automatically skipping the display of the 31st day of a month for months with only 30 days. Annual calendars need a manual correction of the date once a year (end of February) to take into account the fact that the month of February only has 28 or 29 days.

Diverse Mechanismen wurden vorgeschlagen und realisiert, um einen Jahreskalender ausgehend von einem vom Uhrwerk stammenden Zeitsignal zu realisieren. Beispiele dazu kƶnnen den Dokumenten CH 684 815 , EP 1 115 1879 , EP 2 479 622 und CH 705 144 entnommen werden. Allen gemeinsam ist, dass sie am Ende des 30. Tages eines Monats bei Bedarf eine zusƤtzliche Drehung des den Tag des Monats kodierenden Datumsrads bewirken. Die AnsƤtze, wie diese zusƤtzliche Drehung erzeugt wird und wie sichergestellt wird, dass diese nur bei Monaten mit 30 Tagen zugeschaltet wird, sind sehr unterschiedlich. Sie basieren aber alle darauf, dass neben dem das Datumsrad einmal pro Tag antreibenden Mechanismus ein zusƤtzlicher Mechanismus in das Uhrwerk integriert ist, welcher sich bei Bedarf am Monatsende zuschaltet und auf das Datumsrad einwirkt. Je nach Realisierungsart dieses zusƤtzlichen Mechanismus werden KomplexitƤt, Platzbedarf und auch Energieverbrauch des Jahreskalenders mehr oder weniger stark erhƶht. Ferner hƤngt es von der konkreten Realisierung dieses Mechanismus ab, ob ein einfaches Korrigieren des Datums durch Vor- und/oder ZurĆ¼ckstellen mƶglich ist, was insbesondere bei lƤngerem Nichtgebrauch von Vorteil ist.Various mechanisms have been proposed and implemented in order to implement an annual calendar based on a time signal from the clockwork. Examples of this can be found in the documents CH 684 815 . EP 1 115 1879 . EP 2 479 622 and CH 705 144 be removed. What they all have in common is that at the end of the 30th day of a month they cause the date wheel encoding the day of the month to be rotated if necessary. The approaches like this extra rotation generated and how it is ensured that this is only switched on for months with 30 days are very different. However, they are all based on the fact that, in addition to the mechanism that drives the date wheel once a day, an additional mechanism is integrated into the clockwork, which switches on at the end of the month as required and acts on the date wheel. Depending on how this additional mechanism is implemented, the complexity, space requirements and energy consumption of the annual calendar are increased to a greater or lesser extent. Furthermore, it depends on the concrete implementation of this mechanism whether a simple correction of the date is possible by moving it forward and / or back, which is particularly advantageous if it is not used for a long time.

JP 2651150 zeigt einen Jahreskalender, bei welchem ein Mechanismus bewirkt, dass nur am Ende eines kurzen Monats ein die Datumsanzeige tragendes Rad um zwei Einheiten vorangerĆ¼ckt wird. Ein dafĆ¼r vorgesehenes Antriebsrad, welches einen Mitnehmer trƤgt, ist ortsfest angeordnet. JP 2651150 shows an annual calendar in which a mechanism causes a wheel carrying the date display to be advanced by two units only at the end of a short month. A drive wheel provided for this purpose, which carries a driver, is arranged in a stationary manner.

US 2,886,910 zeigt einen Kalendermechanismus, bei welchem ein Hebel jeweils am Monatsende Ć¼ber einen Pin die von einem Rad kodierte Information ausliest, ob der betreffende Monat lang oder kurz ist. Ein fest auf einem Zahnrad mit vorgegebener Drehachse angeschraubter Mitnehmer betƤtigt den Kalendermechanismus. US 2,886,910 shows a calendar mechanism in which a lever at the end of each month reads the information coded by a wheel via a pin, whether the month in question is long or short. A driver, which is firmly screwed onto a gearwheel with a specified axis of rotation, actuates the calendar mechanism.

CH 705901 zeigt verschiedene Jahreskalender. Am Ende eines kurzen Monats bewirkt ein Mitnehmer in einigen AusfĆ¼hrungsformen, dass am Ende eines kurzen Monats ein die Datumsanzeige tragendes Rad direkt vom 30. auf den 1. Tag schaltet. CH 705901 shows different annual calendars. At the end of a short month, in some embodiments, a driver causes a wheel carrying the date display to switch directly from the 30th to the 1st day at the end of a short month.

Es ist eine Aufgabe der Erfindung, eine Datumsanzeige-Vorrichtung fĆ¼r einen Jahreskalender fĆ¼r eine mechanischen Uhr zur VerfĆ¼gung zu stellen, welche im Vergleich zu bestehenden Jahreskalender-Komplikationen eine reduzierte KomplexitƤt aufweist und welche die Mƶglichkeit bietet, weitgehend auf zusƤtzliche Ɯbertragungsmechanismen zwischen den mechanischen Antrieb und dem Datumsrad zu verzichten.It is an object of the invention to provide a date display device for an annual calendar for a mechanical watch which is used in the Compared to existing annual calendar complications has a reduced complexity and which offers the possibility to largely dispense with additional transmission mechanisms between the mechanical drive and the date wheel.

Es ist ferner eine Aufgabe der Erfindung, eine Datumsanzeige-Vorrichtung zur VerfĆ¼gung zu stellen, welche die Benutzerfreundlichkeit erhƶht.It is also an object of the invention to provide a date display device which increases user friendliness.

Diese Aufgaben werden durch die Erfindung gelƶst, wie sie in den PatentansprĆ¼chen definiert ist.These objects are achieved by the invention as defined in the claims.

GemƤss einem Aspekt der Erfindung weist die Datumsanzeige-Vorrichtung ein Antriebsrad auf, welches an das Uhrwerk der mechanischen Uhr gekoppelt ist. Ɯber diese Kopplung wird die Vorrichtung angetrieben und damit auch ein Zeitsignal in die Vorrichtung eingeleitet. Mit dem Antriebsrad verbunden und durch dieses angetrieben ist eine Vorrichtung, welche ihrerseits in regelmƤssigen AbstƤnden mit einem Datumsrad interagiert und dieses antreibt. Diese Vorrichtung wird nachfolgend als "Mitnahmevorrichtung" bezeichnet. Ferner weist die Vorrichtung ein Monatsrad auf, welches direkt oder Ć¼ber ZwischenrƤder mit dem Datumsrad interagiert und welches eine den Monat des Jahres reprƤsentierende Winkelposition einnimmt.According to one aspect of the invention, the date display device has a drive wheel which is coupled to the clockwork of the mechanical watch. The device is driven via this coupling and thus a time signal is also introduced into the device. Connected to and driven by the drive wheel is a device which in turn interacts with a date wheel at regular intervals and drives it. This device is referred to below as a "driver device". Furthermore, the device has a monthly wheel which interacts directly or via intermediate wheels with the date wheel and which assumes an angular position representing the month of the year.

Die Kopplung des Antriebsrads an das Uhrwerk ist insbesondere fest in dem Sinn, dass eine Bewegung des Uhrwerks jederzeit eine entsprechende Bewegung des Antriebsrads verursacht - insbesondere ist das Antriebsrad Ć¼ber eine Zahnradverbindung ans Uhrwerk gekoppelt.The coupling of the drive wheel to the clockwork is particularly fixed in the sense that movement of the clockwork causes a corresponding movement of the drive wheel at all times - in particular, the drive wheel is coupled to the clockwork via a gear connection.

Die Winkelposition des Datumsrads - das ein Datums-Zahnrad sein kann - ist charakteristisch fĆ¼r das Datum, was direkt oder indirekt, Ć¼ber ein mit dem Datumsrad gekoppeltes Element, fĆ¼r die Datumsanzeige verwendet werden kann.The angular position of the date wheel - which can be a date gear - is characteristic of the date, which can be used directly or indirectly, via an element coupled to the date wheel, for the date display.

Die Mitnahmevorrichtung weist eine als "Mitnehmer" bezeichnete Einheit auf, welche mit dem Datumsrad bspw. direkt in Kontakt tritt, sowie eine Drehachse, um welche sich der Mitnehmer dreht. Die Bahn, auf welcher sich der Mitnehmer um die Drehachse bewegt, ist dabei beispielsweise, aber nicht zwingend, als Kreisbahn ausgelegt.The entraining device has a unit called a "entrainer" which, for example, comes into direct contact with the date wheel, and an axis of rotation about which the entrainer rotates. The path on which the driver moves about the axis of rotation is designed, for example, but not necessarily, as a circular path.

In einer alternativen AusfĆ¼hrungsform kann der Mitnehmer auch indirekt, beispielsweise Ć¼ber ZwischenrƤder und/oder Stifte, mit dem Datumsrad interagieren.In an alternative embodiment, the driver can also interact indirectly with the date wheel, for example via intermediate wheels and / or pins.

Die Mitnahmevorrichtung kann mindestens zwei Positionen einnehmen, welche sich durch ihre relative Position zum Datumsrad, beziehungsweise zur Drehachse des Datumsrades, und als Folge davon durch den Winkel, um welchen die Mitnahmevorrichtung das Datumsrad pro Interaktion dreht, unterscheiden. Dreht die Mitnahmevorrichtung das Datumsrad pro Interaktion in einer ersten Position um eine Einheit, so dreht diese das Datumsrad pro Interaktion in einer zweiten Position um eine Mehrzahl von Einheiten. Die Vorrichtung ist eingerichtet, bei einer vorgegebenen Winkelposition des Datumsrads (entsprechend dem Monatsende, insbesondere dem 30. des Monats) abhƤngig von einem Zustand des Monatsrads die Mitnahmevorrichtung von der ersten in die zweite Position zu bringen oder nicht.The driving device can assume at least two positions, which differ by their position relative to the date wheel or the axis of rotation of the date wheel, and consequently by the angle by which the driving device rotates the date wheel per interaction. If the entraining device rotates the date wheel per interaction in a first position by one unit, it rotates the date wheel per interaction in a second position by a plurality of units. The device is set up at a predetermined angular position of the date wheel (corresponding to the end of the month, in particular the 30th of the month) or not to bring the driving device from the first to the second position depending on a state of the month wheel.

Der Umstand, dass die Mitnahmevorrichtung relativ zum Datumsrad zwei Positionen einnehmen kann, bedeutet, dass die Mitnahmevorrichtung als Ganze relativ zum Datumsrad zwei Positionen einnehmen kann, d.h. insbesondere auch auf die Drehachse der Mitnahmevorrichtung - d.h. die zwei Positionen unterscheiden sich insbesondere nicht bloss durch verschiedene Drehpositionen der Mitnahmevorrichtungen..The fact that the entrainment device can assume two positions relative to the date wheel means that the entrainment device as a whole can assume two positions relative to the date wheel, ie in particular also to the Axis of rotation of the driving device - ie the two positions differ in particular not only by different rotating positions of the driving devices.

An das Monatsrad kann eine - unter UmstƤnden auch mit diesem einstĆ¼ckige - Monatskurvenscheibe gekoppelt sein, welche die LƤnge des Monats kodiert und abhƤngig von ihrer Winkelposition eine Bewegung in die zweite Position zulƤsst oder nicht.A monthly cam disk, which may encode the length of the month and, depending on its angular position, may or may not move to the second position, may also be coupled to the monthly wheel.

Datumsanzeige-Vorrichtungen der vorliegend beanspruchten Art werden oft als Beispiele fĆ¼r sogenannte Komplikationen angesehen. Das soll vorliegend jedoch keine Aussage Ć¼ber die KomplexitƤt der Vorrichtung darstellen; vielmehr ermƶglicht der erfindungsgemƤsse Ansatz einen besonders einfachen und bei Bedarf auch einen besonders gut in das Uhrwerk integrierten Aufbau.Date display devices of the type claimed herein are often considered examples of so-called complications. In the present case, however, this should not constitute a statement about the complexity of the device; rather, the approach according to the invention enables a particularly simple and, if necessary, a particularly well integrated structure in the clockwork.

GemƤss dem Aspekt der Erfindung ist es also mƶglich und vorgesehen, dass ein- und derselbe Mechanismus sowohl fĆ¼r das Vortreiben des Datumsrads um einen Tag an einem regulƤren Datumswechsel als auch fĆ¼r das Vortreibens des Datumsrads um mehr als einen Tag am Ende eines kĆ¼rzeren Monats verwendet wird. Der Unterschied zwischen dem Vortreiben um einen oder mehrere Tage wird also nicht durch verschiedene Mechanismen wie aus dem Stand der Technik bekannt und auch nicht durch unterschiedlich weite Antriebswege (bspw. unterschiedlich grosse Drehungen) des antreibenden Mechanismus bewirkt, sondern durch das Einstellen einer Relativposition des antreibenden Mechanismus (Mitnahmevorrichtung) und des Datumsrads. Das ermƶglicht eine im Vergleich zum Stand der Technik markant vereinfachte Konstruktion mit nur wenigen fĆ¼r die Jahreskalenderfunktion notwendigen zusƤtzlichen Elementen und fast ohne zusƤtzlichen PlatzbedarfAccording to the aspect of the invention it is therefore possible and provided that the same mechanism is used both for advancing the date wheel by one day on a regular date change and for advancing the date wheel by more than one day at the end of a shorter month , The difference between advancing by one or more days is therefore not caused by different mechanisms as known from the prior art and also not by drive paths of different widths (e.g. rotations of different sizes) of the driving mechanism, but by setting a relative position of the driving mechanism Mechanism (driving device) and the date wheel. This enables a significantly simplified design compared to the prior art with only a few additional elements necessary for the annual calendar function and almost no additional space requirement

Die Relativbewegung zwischen der ersten und der zweiten Position ist beispielsweise eine Bewegung der Mitnahmevorrichtung relativ zu den anderen Teilen der Vorrichtung, das Datumsrad ist dann also in seiner Lage fix. Das Umgekehrte (Bewegung des Datumsrads bei bspw. fixer Bahn der Mitnahmevorrichtung) ist jedoch nicht ausgeschlossen.The relative movement between the first and the second position is, for example, a movement of the driving device relative to the other parts of the device, so the date wheel is then fixed in its position. The reverse (movement of the date wheel with, for example, a fixed path of the driving device) is not excluded.

Die erste der zwei Positionen entspricht der Normalposition, die mit Ausnahme des Monatsendes stƤndig eingenommen wird. Die zweite Position wird in kurzen Monaten am Monatsende eingenommen, damit das Datumsrad in seiner Bewegung bei der Interaktion mit der Mitnahmevorrichtung einen Tag Ć¼berspringt.The first of the two positions corresponds to the normal position, which is constantly occupied with the exception of the end of the month. The second position is taken in short months at the end of the month, so that the date wheel skips a day in its movement when interacting with the driving device.

Die Positionen von Mitnahmevorrichtung und Datumsrad kƶnnen sich dabei sowohl in ihren horizontalen, d.h. in einer Ebene parallel zur Ebene des Datumsrades, als auch vertikalen Lagen unterscheiden. Insbesondere kann in der zweiten Position die Drehachse der Mitnahmevorrichtung nƤher bei der Drehachse des Datumsrads sein als in der ersten Position.The positions of the driving device and date wheel can change both in their horizontal, i.e. distinguish in a plane parallel to the plane of the date wheel, as well as vertical positions. In particular, in the second position, the axis of rotation of the driving device can be closer to the axis of rotation of the date wheel than in the first position.

Anstatt Ć¼ber eine unterschiedliche Lage parallel zur Datumsrad-Ebene kƶnnen die unterschiedlichen relativen Positionen auch anders realisiert sein, bspw. durch Unterschiedliche Lagen senkrecht zur Ebene, In dieser AusfĆ¼hrungsform weist das Datumsrad Mittel auf, um in jeder Position der Mitnahmevorrichtung mit dem Mitnehmer in einer positionsabhƤngigen Art und Weise zu interagieren.Instead of using a different position parallel to the date wheel plane, the different relative positions can also be realized differently, for example by different positions perpendicular to the plane. In this embodiment, the date wheel has means to position the driver in each position with the driver in a position-dependent manner Way to interact.

Eine VerƤnderung des Winkels, um welchen sich das Datumsrad pro Interaktion mit der Mitnahmevorrichtung dreht, kann beispielsweise dadurch realisiert werden, dass sich der Ɯberlapp zwischen der Bahn, auf welcher sich die ZƤhne des Datumsrades bewegen, und der Bahn des Mitnehmers dementsprechend erhƶht. Bei einer solchen AusfĆ¼hrungsform wird die Drehung des Datumsrades beispielsweise dadurch realisiert, dass der Mitnehmer mit den ZƤhnen des Datumsrades verhakt und dieses mit sich zieht, bevor Mitnehmer und Datumsrad aufgrund ihrer unterschiedlichen Bahnen wieder entkoppeln. Wenn die Drehachse des Mitnehmers in der zweiten Position nƤher bei der Drehachse der Datumsvorrichtung ist, greift der vorher an und steht Ć¼ber eine lƤngere Strecke in Eingriff mit dem Datumsrad als in der ersten Position. Um die ungleichen AbstƤnde auszugleichen, kann der Mitnehmer radial federnd gelagert sein.A change in the angle by which the date wheel rotates per interaction with the driving device can be realized, for example, in that the overlap between the path on which the teeth of the date wheel move and the path of the driver increases accordingly. With one Embodiment, the rotation of the date wheel is realized, for example, in that the driver hooks with the teeth of the date wheel and pulls it with it before the driver and date wheel decouple due to their different paths. If the axis of rotation of the driver in the second position is closer to the axis of rotation of the date device, the latter attacks and is in engagement with the date wheel over a longer distance than in the first position. In order to compensate for the unequal distances, the driver can be radially resilient.

In AusfĆ¼hrungsformen ist der Mitnehmer als Mitnehmerkopf oder Mitnehmerstift ausgelegt. Dieser kann sich auf einer Kreisbahn um seine Drehachse bewegen.In embodiments, the driver is designed as a driver head or driver pin. This can move on a circular path around its axis of rotation.

Mitnehmer und Drehachse sind wie erwƤhnt vorzugsweise so verbunden, dass der Mitnehmer radial zu seiner Bahn federnd gelagert ist. Ferner ist diese Verbindung bspw. so ausgelegt, dass der Mitnehmer tangential zur Bahn starr direkt oder indirekt mit dem Antriebsrad verbunden ist. Dies kann beispielsweise dadurch realisiert werden, dass der Mitnehmer an einem federnden, ungefƤhr in Umfangrichtung laufenden Arm gehalten ist. In einer AusfĆ¼hrungsform kann die Verbindung zwischen dem Mitnehmer und seiner Drehachse spiralfƶrmig ausgestaltet sein.As mentioned, the driver and the axis of rotation are preferably connected such that the driver is spring-mounted radially to its path. Furthermore, this connection is designed, for example, in such a way that the driver is rigidly connected directly or indirectly tangentially to the track with the drive wheel. This can be achieved, for example, by the driver being held on a resilient arm running approximately in the circumferential direction. In one embodiment, the connection between the driver and its axis of rotation can be configured in a spiral.

Die Mitnahmevorrichtung kann ferner optionale AnschlƤge aufweisen, welche eine maximale radiale und/oder tangentiale Auslenkung des Mitnehmers festlegen. Diese kƶnnen so ausgebildet sein, dass sie verschiedene Positionen, welche der Mitnehmer einnehmen kann, definieren. Alternativ oder ergƤnzend kƶnnen diese auch vor einer zu grossen mechanischen Einwirkung schĆ¼tzen, welche die BeschƤdigung der Mitnahmevorrichtung nach sich ziehen kƶnnte.The driver device can also have optional stops, which define a maximum radial and / or tangential deflection of the driver. These can be designed in such a way that they define different positions which the driver can assume. Alternatively or in addition, they can also protect against excessive mechanical action, which could result in damage to the driving device.

In einer AusfĆ¼hrungsform ist die Drehachse der Mitnahmevorrichtung mit derjenigen des die Mitnahmevorrichtung antreibenden Antriebsrades identisch. In diesem Fall - und ganz allgemein als Option - ist die Achse des Antriebsrads beispielsweise nicht fest sondern zwischen verschiedenen Positionen - insbesondere entsprechend den Positionen der Mitnahmevorrichtung bewegbar.In one embodiment, the axis of rotation of the driving device is identical to that of the drive wheel driving the driving device. In this case - and quite generally as an option - the axis of the drive wheel is not fixed, for example, but can be moved between different positions - in particular according to the positions of the driving device.

Ferner kann die Mitnahmevorrichtung so ausgelegt sein, dass der Mitnehmer einmal pro vollstƤndige Umdrehung des Antriebsrades mit dem Datumsrad interagiert. Dazu kann die Mitnahmevorrichtung fest mit dem Antriebsrad verbunden sein, beispielsweise indem die Drehachsen von Antriebsrad und Mitnahmevorrichtung drehfest gekoppelt sind. Ferner kann der Mitnehmer direkt, d.h. ohne dazwischen geschaltete Elemente, mit dem Datumsrad in Kontakt treten.Furthermore, the driver device can be designed such that the driver interacts with the date wheel once per complete revolution of the drive wheel. For this purpose, the driver device can be fixedly connected to the drive wheel, for example by the rotational axes of the drive wheel and driver device being coupled in a rotationally fixed manner. Furthermore, the driver can directly, i.e. without any intervening elements, contact the date wheel.

In AusfĆ¼hrungsformen sind die Form der ZƤhne des Datumsrades und die Form des Mitnehmers so aufeinander abgestimmt, dass diese passgenau ineinander greifen. Ferner kƶnnen diese so ausgelegt sein, dass auftretende, kleine Winkelpositionsfehler automatisch korrigiert werden. Die Fehlertoleranz wird durch eine radial federnde, tangential starre Lagerung des Mitnehmers weiter erhƶht.In embodiments, the shape of the teeth of the date wheel and the shape of the driver are coordinated with one another in such a way that they engage in one another with a precise fit. Furthermore, these can be designed such that small angular position errors that occur are automatically corrected. The fault tolerance is further increased by a radially resilient, tangentially rigid mounting of the driver.

Eine AusfĆ¼hrungsform zur Realisierung von mindestens zwei unterschiedlichen Positionen der Mitnahmevorrichtung relativ zum Datumsrad weist zusƤtzlich eine Kopplungswippe auf, auf welcher die Drehachse der Mitnahmevorrichtung sitzt. Dabei fƤllt die Drehachse der Mitnahmevorrichtung nicht mit derjenigen der Kopplungswippe zusammen. Die mindestens zwei Positionen der Mitnahmevorrichtung sind dabei durch mindestens zwei ZustƤnde der Kopplungswippe gegeben, welche sich in der Ausrichtung der Kopplungswippe unterscheiden.An embodiment for realizing at least two different positions of the driving device relative to the date wheel additionally has a coupling rocker on which the axis of rotation of the driving device sits. The axis of rotation of the driver device does not coincide with that of the coupling rocker. The at least two positions of the driving device are given by at least two states of the coupling rocker, which differ in the orientation of the coupling rocker.

Ferner kann die Kopplungswippe ein Federblatt sowie eine oder mehrere Kopplungspartien, bspw. jeweils in Form eines Kopplungsstifts, einer Laufrolle, einer AnschlagflƤche etc. aufweisen. Das Federblatt drĆ¼ckt dabei die Kopplungspartie(n) in eine bestimmte Richtung gegen ein oder mehrere Bauteile der Vorrichtung oder der Uhr. Dadurch wird es mƶglich, dass der Zustand der Kopplungswippe von der Position, Ausrichtung und/oder vom Zustand anderer Bauteile abhƤngig ist.Furthermore, the coupling rocker can have a spring leaf and one or more coupling parts, for example each in the form of a coupling pin, a roller, a stop surface, etc. The spring leaf presses the coupling part (s) in a certain direction against one or more components of the device or the watch. This makes it possible for the state of the coupling rocker to be dependent on the position, orientation and / or on the state of other components.

In einer beispielhaften AusfĆ¼hrungsform mit Kopplungswippe kann das Datumsrad oder ein mit diesem gekoppeltes separates Element eine bspw. ober- oder unterhalb der Verzahnung angebrachte Laufspur aufweisen, welche in derjenigen Winkelposition des Datumsrades, welches den 30. Tag des Monats identifiziert, eine Aussparung aufweist. Wenn die eine Kopplungspartie - bspw. eine als Laufrolle ausgebildete Kopplungspartie - in die Aussparung gedrĆ¼ckt wird, wechselt die Kopplungswippe in die zweite Position.In an exemplary embodiment with a coupling rocker, the date wheel or a separate element coupled to it can have a track, for example above or below the toothing, which has a recess in the angular position of the date wheel that identifies the 30th day of the month. If the one coupling part - for example a coupling part designed as a roller - is pressed into the recess, the coupling rocker changes to the second position.

Das Federblatt drĆ¼ckt in AusfĆ¼hrungsformen ausserdem eine an der Kopplungswippe vorhandene zweite Kopplungspartie - bspw. einen Stift gegen die Monatskurvenscheibe und gleichzeitig die erste Kopplungspartie gegen die Laufspur. Dadurch lƤuft die erste Kopplungspartie (bspw. Laufrolle) die Laufspur ab und die zweite Kopplungspartie (bspw. Stift) liest die LƤnge (28-30 oder 31 Tage) des Monats aus. Folglich wird es mƶglich, dass die Kopplungswippe in einen zweiten Zustand schaltet, in welchem die Mitnahmevorrichtung an der zweiten Position ist, falls die erste Kopplungspartie den 30. Tag des Monats identifiziert und gleichzeitig die zweite Kopplungspartie einen Monat mit nur 30 Tagen identifiziert. Dies kann so geschehen, dass in einem Monat mit 30 oder weniger Tagen die zweite Kopplungspartie nicht auf der Monatskurvenscheibe aufliegt und dadurch ein Reinlaufen der zweiten Kopplungspartie in die Aussparung der Laufspur nicht verhindert.In embodiments, the spring leaf also presses a second coupling part present on the coupling rocker - for example a pin against the monthly cam and at the same time the first coupling part against the running track. As a result, the first coupling section (e.g. roller) runs off the track and the second coupling section (e.g. pen) reads out the length (28-30 or 31 days) of the month. As a result, it becomes possible for the coupling rocker to switch to a second state, in which the driving device is in the second position, if the first coupling section identifies the 30th day of the month and at the same time the second coupling section identifies a month with only 30 days. This can be done in such a way that in a month with 30 or fewer days, the second coupling section does not lie on the monthly cam disc and therefore does not prevent the second coupling section from running into the recess in the track.

Eine Monatskurvenschcibc der erwƤhnten Art kann ober- oder unterhalb des Monatsrades angeordnet sein, wobei die Drehachse der Monatskurvenscheibe identisch mit derjenigen des Monatsrades ist und mit dieser drehfest verbunden ist. Monatskurvenscheibe und Monatsrad kƶnnen auch aus einem StĆ¼ck gefertigt sein.A monthly cam disc of the type mentioned can be arranged above or below the monthly wheel, the axis of rotation of the monthly cam disc being identical to that of the monthly wheel and connected to it in a rotationally fixed manner. Monthly cam and monthly wheel can also be made from one piece.

Mit Hilfe einer solchen Kopplungswippe und zusƤtzlichen Positionierungselementen kƶnnen noch weitere Positionen der Mitnahmevorrichtung definiert werden.With the aid of such a coupling rocker and additional positioning elements, further positions of the driving device can be defined.

In AusfĆ¼hrungsformen fƤllt die Drehachse eines Zahnrades, welches einerseits mit dem Uhrwerk und andererseits mit dem Antriebsrad interagiert, mit der Drehachse der Kopplungswippe zusammen. Damit wird gewƤhrleistet, dass dieses Zahnrad unabhƤngig von der von der Kopplungswippe, beziehungsweise der Mitnahmevorrichtung, eingenommenen Position sowohl mit dem Antriebsrad als auch mit dem Uhrwerk verbunden bleibt.In embodiments, the axis of rotation of a gearwheel, which interacts with the clockwork on the one hand and with the drive wheel on the other hand, coincides with the axis of rotation of the coupling rocker. This ensures that this gear remains connected to both the drive wheel and the movement regardless of the position assumed by the coupling rocker or the driving device.

In AusfĆ¼hrungsformen gibt es fĆ¼r das Datumsrad 31 definierte Winkelpositionen, welche durch 31 Ƥquidistant beabstandete ZƤhne definiert sind. In diesen AusfĆ¼hrungsformen dreht die Mitnahmevorrichtung in einer relativ zum Datumsrad ersten Position das Datumsrad pro Tag und Interaktion um einen Zahn. Wenn sich die Mitnahmevorrichtung relativ zum Datumsrad in einer zweiten Position befindet, erfolgt bei einer Interaktion ein Vortrieb um zwei ZƤhne. Insbesondere wird in der zweiten Position die Mitnahmevorrichtung nƤher beim Datumsrad sein und der Mitnehmer an einem in Bezug auf die Drehrichtung weiter vorne liegenden Zahn angreifen.In embodiments, there are defined angular positions for the date wheel 31, which are defined by 31 equidistantly spaced teeth. In these embodiments, the driver device rotates the date wheel per day and interaction around a tooth in a first position relative to the date wheel. If the driver device is in a second position relative to the date wheel, two teeth are propelled during an interaction. In particular, in the second position, the driver device will be closer to the date wheel and the driver will engage a tooth that is further forward in relation to the direction of rotation.

In einer alternativen AusfĆ¼hrungsform, kann das Datumsrad auch n āˆ—31 ZƤhne aufweisen, wobei n eine ganze Zahl ist. Falls sich der Mitnehmer einmal pro Tag um seine eigene Achse dreht und dabei einmal mit dem Datumsrad interagiert, dreht die Mitnahmevorrichtung in der ersten Position das Datumsrad um 360/(31āˆ— n) Grad und um 2āˆ—360/(31āˆ— n) Grad, wenn sich die Mitnahmevorrichtung in einer zweiten Position befindet.In an alternative embodiment, the date wheel can also have n āˆ— 31 teeth, where n is an integer. In case the driver turns around once a day its own axis rotates and interacts once with the date wheel, the driving device in the first position rotates the date wheel by 360 / (31 āˆ— n ) degrees and by 2 āˆ— 360 / (31 āˆ— n ) degrees if the driving device is in a second Position.

Es sind ferner AusfĆ¼hrungsformen denkbar, in welchen sich die Mitnahmevorrichtung pro Tag mehrmals um die eigene Achse dreht oder in welchen die Mitnahmevorrichtung mindestens zwei Mitnehmer aufweist. In solchen AusfĆ¼hrungsformen wird obiges, insbesondere die Verdoppelung des Winkels, um welchen sich das Datumsrad pro Interaktion dreht, sinngemƤss umgesetzt.Embodiments are also conceivable in which the driver device rotates several times per day about its own axis or in which the driver device has at least two drivers. In such embodiments, the above, in particular the doubling of the angle by which the date wheel rotates per interaction, is implemented analogously.

In AusfĆ¼hrungsformen interagiert das Datumsrad direkt, d.h. ohne zwischengeschaltete ZahnrƤder, mit dem Monatsrad. Dazu weisen Monatsrad und Datumsrad Mittel auf, die ein vom Datumsrad initiiertes Drehen des Monatsrades ermƶglichen. Beispielsweise kann das Datumsrad einen Monatsrad-Mitnahmestift aufweisen, welcher so angeordnet ist, dass dieser fĆ¼r sich alleine oder in Kombination mit anderen Monatsrad-Mitnahmestiften nach Ablauf eines Monats das Monatsrad auf die fĆ¼r den beginnenden Monat charakteristische Winkelposition gedreht hat. Dazu kƶnnen die Monatsrad-Mitnahmestift insbesondere direkt in die Verzahnung des Monatsrades greifen.In embodiments, the date wheel interacts directly, i.e. without intermediate gears, with the monthly wheel. For this purpose, the monthly wheel and the date wheel have means which enable the monthly wheel to be rotated by the date wheel. For example, the date wheel can have a monthly wheel driving pin, which is arranged such that by itself or in combination with other monthly wheel driving pins, after a month has passed, the monthly wheel has turned to the angular position characteristic of the beginning of the month. For this purpose, the monthly bicycle driving pin can in particular engage directly in the toothing of the monthly bicycle.

In AusfĆ¼hrungsformen kann das Monatsrad 12 definierte Winkelpositionen, welche bspw. durch 12 Ƥquidistant beabstandete ZƤhne definiert sind, einnehmen. Dreht sich zudem das Datumsrad einmal pro Monat um die eigene Achse, so reicht eine Interaktion zwischen Datumsrad und Monatsrad am letzten Tag jedes Monats aus, damit das Monatsrad, die fĆ¼r den beginnenden Monat korrekte Winkelposition einnimmt.In embodiments, the monthly wheel 12 can assume defined angular positions, which are defined, for example, by 12 equidistantly spaced teeth. If the date wheel also rotates about its own axis once a month, an interaction between the date wheel and the monthly wheel on the last day of each month is sufficient for the monthly wheel to take the correct angular position for the beginning of the month.

In weiteren AusfĆ¼hrungsformen weist die Vorrichtung Mittel auf, welche ein visuelles Ablesen vorzugsweise des vollstƤndigen Datums bestehend aus dem aktuellen Tag des Monats, dem Wochentag und dem aktuellen Monat, zumindest aber des aktuellen Monatstages durch den Benutzer Ć¼ber das Zifferblatt der Uhr ermƶglichen.In further embodiments, the device has means which enable the user to visually read, preferably the complete date, consisting of the current day of the month, the day of the week and the current month, or at least the current day of the month, on the dial of the watch.

In AusfĆ¼hrungsformen, in welchen das Datumsrad 31 und das Monatsrad 12 definierte Winkelpositionen einnehmen kann, kann dies durch Mittel zur Visualisierung geschehen, welche direkt an das entsprechende Zahnrad gekoppelt sind. Ein entsprechendes Tagesrad, welches sieben definierte Winkelpositionen einnehmen kann und einmal pro Tag mit dem Antriebsrad oder Datumsrad interagiert, kann in einer an und fĆ¼r sich bekannten Weise realisiert werden.In embodiments in which the date wheel 31 and the monthly wheel 12 can assume defined angular positions, this can be done by means of visualization which are coupled directly to the corresponding gear wheel. A corresponding day wheel, which can assume seven defined angular positions and interacts once a day with the drive wheel or date wheel, can be implemented in a manner known per se.

Wie an sich fĆ¼r Komplikationen bekannt kann die Vorrichtung Hebelfedern aufweisen, welche mit den verschiedenen ZahnrƤdern, insbesondere mit dem Datumsrad und/oder dem Monatsrad, verrasten, wenn dieses eine vorgegebene definierte Winkelposition einnehmen. Auf diese Weise kann die Genauigkeit der von den verschiedenen ZahnrƤdern eingenommen Winkelposition erhƶhen und gleichzeitig fĆ¼r eine Arretierung derselben gesorgt werden. Letzteres erhƶht die ZuverlƤssigkeit der Uhr gegenĆ¼ber Stƶrungen von aussen, beispielsweise durch Stƶsse.As is known per se for complications, the device can have lever springs which engage with the various gear wheels, in particular with the date wheel and / or the monthly wheel, when these assume a predetermined, defined angular position. In this way, the accuracy of the angular position taken up by the various gears can be increased and, at the same time, they can be locked. The latter increases the reliability of the watch against external disturbances, for example due to shocks.

Weiter weist die erfindungsgemƤsse Datumsanzeige-Vorrichtung eine Vorrichtung auf, mit welcher das Datum durch den Benutzer auf einfache Weise vor- und zurĆ¼ckgestellt werden kann. Dies wird dadurch realisiert, dass die Drehachse der Mitnahmevorrichtung relativ zum Datumsrad eine weitere, nachfolgend "dritte" genannte, Position einnehmen kann, in welcher die Mitnahmevorrichtung nicht mit dem Datumsrad interagiert. Das Schalten auf diese dritte Position wird durch den Benutzer durch BetƤtigung (bspw. Herausziehen) einer aussen am GehƤuse der Uhr angebrachten Krone initiiert. Sobald die Mitnahmevorrichtung in dieser dritten Position ist, kann das Datum Ć¼ber die am GehƤuse angebrachte Krone eingestellt werden, bspw. durch Drehung der Krone. Dabei ist ein Vor- und ZurĆ¼ckstellen des Datums mƶglich.Furthermore, the date display device according to the invention has a device with which the date can be easily moved back and forth by the user. This is realized in that the axis of rotation of the driving device relative to the date wheel can assume a further position, hereinafter referred to as "third", in which the driving device does not interact with the date wheel. Switching to this The third position is initiated by the user by actuating (for example pulling out) a crown attached to the outside of the watch case. As soon as the driver device is in this third position, the date can be set via the crown attached to the housing, for example by rotating the crown. It is possible to move the date back and forth.

AusfĆ¼hrungsformen kƶnnen auf der oben beschriebenen Kopplungswippe, der aussen am GehƤuse angebrachten Krone und einem Zahnrad basieren, welches mit der Krone gekoppelt ist und direkt oder indirekt mit dem Datumsrad zu interagieren beginnt, sobald Ć¼ber die Krone das Schalten auf die dritte Position der Mitnahmevorrichtung initiiert wurde. Die Kopplung zwischen diesem Zahnrad und der Krone ist dabei so ausgelegt, dass das Datum auf einfache Weise, z.B. durch Drehen der Krone, verstellt werden kann.Embodiments can be based on the coupling rocker described above, the crown attached to the outside of the housing and a gearwheel which is coupled to the crown and begins to interact directly or indirectly with the date wheel as soon as the switching to the third position of the driving device has been initiated via the crown , The coupling between this gear and the crown is designed so that the date is simple, e.g. by turning the crown.

In AusfĆ¼hrungsformen weist die Kopplungswippe mindestens eine Entkopplungspartie, bspw. in der Form eines Entkopplungsstifts auf. Diese dient dazu, die zum GehƤuse der Uhr relative Lage der Krone in eine Ausrichtung der Kopplungswippe zu Ć¼bersetzen. Bspw. ein Herausziehen der Krone wird via die Entkopplungspartie so umgesetzt, dass die Drehachse der Mitnahmevorrichtung die dritte Position einnimmt. In dieser dritten Position Ć¼berlappt sich die Bahn des Mitnehmers nicht mit derjenigen der ZƤhne des Datumsrades. Folglich sind Datumsrad, Monatsrad und alle weiteren Elemente der Vorrichtung, welche zu einer auf dem Zifferblatt visualisierten Datumsangabe fĆ¼hren, vom Antriebsrad und damit vom Uhrwerk selbst entkoppelt.In embodiments, the coupling rocker has at least one decoupling section, for example in the form of a decoupling pin. This serves to translate the position of the crown relative to the housing of the watch into an alignment of the coupling rocker. For example. pulling out the crown is implemented via the decoupling section in such a way that the axis of rotation of the driving device assumes the third position. In this third position, the path of the driver does not overlap with that of the teeth of the date wheel. Consequently, the date wheel, monthly wheel and all other elements of the device, which lead to a date indicated on the dial, are decoupled from the drive wheel and thus from the clockwork itself.

In AusfĆ¼hrungsform dieser Gruppe kann die Vorrichtung ferner eine Entkopplungswippe mit mindestens zwei definierten ZustƤnden aufweisen. Die Entkopplungswippe welche ihrerseits ein Federblatt, eine Drehachse sowie Elemente aufweisen kann, mit welchen verschiedene ZustƤnde der Entkopplungswippe definiert werden kƶnnen und welche ein Schalten zwischen den verschiedenen ZustƤnden ermƶglichen. Die Entkopplungswippe interagiert dabei direkt oder indirekt mit der Krone und der Kopplungswippe, beziehungsweise der Entkopplungspartie, und stellt sicher, dass eine VerƤnderung der relativen Lage der ausserhalb des GehƤuses angebrachten Krone zu einer entsprechenden VerƤnderung der Ausrichtung der Kopplungswippe und damit der Position der Drehachse der Mitnahmevorrichtung fĆ¼hrt.In an embodiment of this group, the device can furthermore have a decoupling rocker with at least two defined states. The decoupling rocker which in turn has a spring leaf, an axis of rotation and elements can have, with which different states of the decoupling rocker can be defined and which enable switching between the different states. The decoupling rocker interacts directly or indirectly with the crown and the coupling rocker, or the decoupling part, and ensures that a change in the relative position of the crown attached outside the housing leads to a corresponding change in the alignment of the coupling rocker and thus the position of the axis of rotation of the driving device leads.

Beispielsweise kann das Zahnrad, welches zugeschaltet werden kann und dann mit der Krone und dem Datumsrad interagiert, auf einer solchen Entkopplungswippe aber nicht auf dessen Drehachse angeordnet sein.For example, the gearwheel, which can be switched on and then interacts with the crown and the date wheel, can be arranged on such a decoupling rocker but not on its axis of rotation.

Es ist nicht ausgeschlossen, dass die Mitnahmevorrichtung neben der diskutierten ersten, zweiten und ggf. dritten Position noch weitere Positionen einnehmen kann.It is not excluded that the entraining device can assume other positions in addition to the discussed first, second and possibly third position.

Die eben beschriebene AusfĆ¼hrungsform fĆ¼r die Positionierung der Mitnahmevorrichtung ist faktisch eine mechanische Umsetzung des Prinzips der klassischen AND-Logik. Dies ist deshalb der Fall, weil jeder Taster einen fĆ¼r das Datum relevante Information abfragt und Ć¼ber seine starre Verbindung mit der Kopplungswippe ein Schalten der Wippe zulƤsst, falls der abgefragte Datumszustand eintrifft. Die Wippe schaltet allerdings nur dann in eine andere Position, wenn alle fĆ¼r diese Position relevanten Abfragen des Datumszustandes ein entsprechendes Ergebnis liefern. Darauf basierend sind erfindungsgemƤsse Erweiterungen des Jahreskalenders, beispielsweise in Richtung eines ewigen Kalenders, denkbar.The embodiment just described for positioning the driver device is in fact a mechanical implementation of the principle of classic AND logic. This is the case because each button queries information relevant to the date and, via its rigid connection to the coupling rocker, allows the rocker to switch if the queried date state arrives. However, the rocker switches to a different position only if all queries of the date status relevant for this position deliver a corresponding result. Based on this, extensions of the annual calendar according to the invention, for example in the direction of a perpetual calendar, are conceivable.

Nebst der Datumsanzeige-Vorrichtung, die wie erwƤhnt als Komplikation aufgefasst werden kann, gehƶrt auch eine mechanische Uhr zum Gegenstand der Erfindung. Eine solche weist nebst der Datumsanzeige-Vorrichtung auch ein Uhrwerk und eine Zeitanzeige mit mindestens zwei Zeigern und einem Zifferblatt auf, welche alle in an sich bekannter Art ausgestaltet sein kƶnnen.In addition to the date display device, which, as mentioned, can be regarded as a complication, a mechanical watch is also part of the subject of the invention. In addition to the date display device, such a device also has a clockwork and a time display with at least two hands and a dial, all of which can be designed in a manner known per se.

Die nachfolgenden Zeichnungen stellen beispielhafte AusfĆ¼hrungsformen der Erfindung dar, anhand welcher die Erfindung im Detail beschrieben wird. In den Zeichnungen bezeichnen gleiche Bezugszeichen gleiche oder analoge Elemente. Die Zeichnungen zeigen:

Figur 1a-1b
Je eine Aussen- und eine Innenansicht einer Uhr, welche einen Jahreskalender der erfindungsgemƤssen Art aufweist;
Figur 2
Aufbau einer AusfĆ¼hrungsform des Jahreskalenders;
Figuren 3a-3c
Eine AusfĆ¼hrungsform zur Datumskorrektur durch den Benutzer;
Figuren 4a-4f
Eine AusfĆ¼hrungsform einer automatischen BerĆ¼cksichtigung von Monaten mit 30 und 31 Tagen;
Figur 5
Eine beispielhafte AusfĆ¼hrungsform des Datumsrades;
Figur 6
Eine beispielhafte AusfĆ¼hrungsform des Monatsrades und der Monatskurvenscheibe; und
Figur 7
Eine beispielhafte AusfĆ¼hrungsform einer Koppelungswippe.
The following drawings represent exemplary embodiments of the invention, on the basis of which the invention is described in detail. In the drawings, the same reference numerals designate the same or analogous elements. The drawings show:
Figure 1a-1b
One outside and one inside view of a clock, which has an annual calendar of the type according to the invention;
Figure 2
Structure of an embodiment of the annual calendar;
Figures 3a-3c
An embodiment for date correction by the user;
Figures 4a-4f
An embodiment of automatic consideration of months with 30 and 31 days;
Figure 5
An exemplary embodiment of the date wheel;
Figure 6
An exemplary embodiment of the monthly wheel and the monthly cam; and
Figure 7
An exemplary embodiment of a coupling rocker.

Nachfolgend wird die Funktionsweise und Umsetzung der Erfindung anhand verschiedener beispielhafter AusfĆ¼hrungsformen gezeigt. Es versteht sich, dass die Erfindung nicht auf diese AusfĆ¼hrungsformen beschrƤnkt ist, sondern auch andere mit den AnsprĆ¼chen in Einklang stehende AusfĆ¼hrungsformen umfasst.The mode of operation and implementation of the invention is shown below using various exemplary embodiments. It goes without saying that the invention is not restricted to these embodiments, but also encompasses other embodiments which are consistent with the claims.

Figuren 1a und 1b zeigen eine Aussen- (Fig. 1a) und eine Innenansicht (Fig. 1b) einer mechanischen Uhr 100 mit Jahreskalender, bei welcher neben der Uhrzeit der Monatstag und der Monat selbst angezeigt werden. Eine solche Uhr weist folgende Elemente auf: ein Zifferblatt 12, auf welchem Vorrichtungen (beispielsweise Indizes) angebracht sind, welche in Kombination mit Zeigern oder anderen Visualisierungsmethoden das Ablesen der Uhrzeit, des Monatstages und des Monats ermƶglichen. Weiter sieht man einen Minuten- 102, Stunden- 103 und Monatszeiger 104 sowie eine in der gezeigten AusfĆ¼hrungsform radial-aussenseitig am Zifferblatt angebrachte Tagesanzeige 105. Ferner weist die gezeigte Uhr eine Einstellvorrichtung 13 sowie eine hier nicht erfindungswesentliche Komplikation zur Anzeige der Mondphase (Mondphasenuhr 101) mit einem dazugehƶrigen Zeiger 106 auf. Die Einstellvorrichtung kann an ihrem ausserhalb der Uhr gelegenen Ende durch eine Krone (nicht gezeigt) abgeschlossen sein, wobei die Krone bspw. fest mit der Einstellschreibe verbunden ist. Figures 1a and 1b show an outdoor ( Fig. 1a ) and an inside view ( Fig. 1b ) a mechanical watch 100 with an annual calendar, in which the day of the month and the month itself are displayed in addition to the time. Such a watch has the following elements: a dial 12, on which devices (for example indices) are attached which, in combination with hands or other visualization methods, make it possible to read the time, the day of the month and the month. Furthermore, one sees a minute 102, hour 103 and month hand 104 as well as a day display 105 attached radially on the outside of the dial in the embodiment shown. Furthermore, the clock shown has a setting device 13 and a complication for displaying the moon phase (moon phase clock 101 ) with an associated pointer 106. The setting device can be closed at its end located outside the clock by a crown (not shown), the crown being, for example, firmly connected to the setting plate.

Die Mechanik des Jahreskalenders weist u.a. die folgenden in Fig. 1b gut erkennbaren Elemente auf: Zwischenrad 2, Transfer-Datumszahnrad 3, Monatsrad 5, Drehachse 7.4 des Antriebsrades 8, welche in der gezeigten AusfĆ¼hrungsform mit der Drehachse 8.3 des Mitnehmers 8.1 identisch ist, ein Zahnrad 15 zur Kopplung des Jahreskalenders an die mechanische Uhr sowie dessen Drehachse 7.8. Ferner sind auch in der Innenansicht zur besseren Orientierung die Zeiger zum Ablesen von Minuten 102, Stunden 103, Monat 104 und Mondphase 106 ergƤnzt. Die Uhr selbst wird durch ein GehƤuse 14 abgeschlossen.The mechanics of the annual calendar include the following in Fig. 1b Easily recognizable elements on: idler gear 2, transfer date gear 3, monthly gear 5, axis of rotation 7.4 of the drive wheel 8, which in the embodiment shown is identical to the axis of rotation 8.3 of the driver 8.1, a gear 15 for coupling the annual calendar to the mechanical watch and its Axis of rotation 7.8. Furthermore, the pointers for reading are also in the interior view for better orientation Minutes 102, hours 103, month 104 and moon phase 106 added. The watch itself is closed by a housing 14.

Die Funktionen dieser und weiterer Elemente eines auf der Erfindung beruhenden Jahreskalenders und deren Zusammenspiel werden anhand der nachfolgenden Figuren beschrieben.The functions of these and other elements of an annual calendar based on the invention and their interaction are described with reference to the following figures.

Figur 2 zeigt die zur Realisierung des Jahreskalenders benƶtigten Bauteile sowie deren Zusammenwirken. Der Jahreskalender wird durch das mit dem Uhrwerk Ć¼ber das Zahnrad 15 in Verbindung stehenden Antriebsrad 8 angetrieben. Die Drehachse 7.4 des Antriebsrades ist auf einer Kopplungswippe 7 gelagert und so ausgelegt, dass sich das Antriebsrad pro Tag einmal vollstƤndig, d.h. um 360Ā°, um die durch die Position der Kopplungswippe gegebene Drehachse 7.4 dreht. Figure 2 shows the components required for the implementation of the annual calendar and their interaction. The annual calendar is driven by the drive wheel 8 which is connected to the clockwork via the gear wheel 15. The axis of rotation 7.4 of the drive wheel is mounted on a coupling rocker 7 and is designed such that the drive wheel rotates once a day, ie by 360 Ā°, about the axis of rotation 7.4 given by the position of the coupling rocker.

Mit dem Antriebsrad steht eine Mitnahmevorrichtung in Verbindung, welche eine als Mitnehmerkopf 8.1 ausgelegte Mitnahme und eine Drehachse 8.3 aufweist. Die Drehachse 8.3 des Mitnehmerkopfes 8.1 fƤllt mit der Drehachse 7.4 des Antriebsrades 8 zusammen, wobei diese beiden Drehachsen drehfest miteinander verbunden sind. Dadurch dreht sich der Mitnehmerkopf 8.1 ebenfalls pro Tag einmal vollstƤndig um seine Achse 8.3.A drive device is connected to the drive wheel, which has a drive designed as a drive head 8.1 and an axis of rotation 8.3. The axis of rotation 8.3 of the driver head 8.1 coincides with the axis of rotation 7.4 of the drive wheel 8, these two axes of rotation being connected to one another in a rotationally fixed manner. As a result, the driver head 8.1 also rotates completely around its axis 8.3 once a day.

Der Mitnehmerkopf 8.1 ist so ausgelegt, dass er einmal pro Tag mit einem Datumsrad 4 interagiert. Das Datumsrad 4 ist als Zahnrad mit 31 Ƥquidistant auf einem gegebenen Radius angeordneten ZƤhnen ausgebildet. Das Datumsrad weist ferner eine Laufspur 4.2 und einen Monatsrad-Mitnahmestift 4.1 auf. Figur 5 zeigt eine Detailansicht eines freigelegten Datumsrades 4. Nebst den erwƤhnten Elementen erkennt man eine Fixierƶffnung 4.4, deren Zentrum mit der Drehachse des Datumsrades zusammenfƤllt. Die Laufspur 4.2 ist als eine kreisrunde Scheibe ausgelegt, die an einer Stelle radial-aussen eine halbkreisfƶrmige Aussparung 4.3 aufweist.The driver head 8.1 is designed such that it interacts with a date wheel 4 once a day. The date wheel 4 is designed as a toothed wheel with 31 teeth arranged equidistantly on a given radius. The date wheel also has a track 4.2 and a monthly wheel driving pin 4.1. Figure 5 shows a detailed view of an exposed date wheel 4. In addition to the elements mentioned, you can see a fixing opening 4.4, the center of which with the axis of rotation of the Date wheel coincides. The track 4.2 is designed as a circular disc which has a semicircular recess 4.3 at one point radially on the outside.

Das Datumsrad 4 seinerseits steht Ć¼ber den Monatsrad-Mitnahmestift 4.1 in Wechselwirkung mit einem Monatsrad 5. Das Monatsrad 5 weist zwƶlf Ƥquidistant auf einem gegebenen Radius angeordnete Zacken auf. it dem Monatsrad fest verbunden ist eine Monatskurvenscheibe 6. Figur 6 zeigt eine Detailansicht eines freigelegten Monatsrades mit Monatskurvenscheibe. Der Monatsrad-Mitnahmestift 4.1 ist so auf dem Datumsrad 4 angeordnet, dass dieser einmal pro vollstƤndige Umdrehung des Datumsrades 4 mit einem Zacken des Monatsrades verhakt und dieses durch sein weiteres Fortschreiten auf seiner Kreisbahn um eine Position weiterzieht. Dadurch wird gewƤhrleistet, dass sich das Monatsrad nach zwƶlf vollstƤndigen Umdrehungen des Datumsrades einmal vollstƤndig, d.h. um 360Ā°, um seine Achse gedreht hat. Das Bezugszeichen 5.1 bezeichnet eine die Monatskurvenscheibe zentral durchstossende Fixierƶffnung 5.1, deren Zentrum mit den Drehachsen von Monatsrad und Monatskurvenscheibe zusammenfƤllt.The date wheel 4, in turn, interacts with a month wheel 5 via the monthly wheel driving pin 4.1. The monthly wheel 5 has twelve teeth arranged equidistantly on a given radius. A monthly cam 6 is firmly connected to the monthly wheel. Figure 6 shows a detailed view of an exposed monthly wheel with monthly cam. The month wheel driving pin 4.1 is arranged on the date wheel 4 in such a way that it hooks with a jag of the month wheel once per complete rotation of the date wheel 4 and pulls it one position further as it progresses on its circular path. This ensures that after twelve complete rotations of the date wheel, the monthly wheel has rotated once completely, ie by 360 Ā°, around its axis. The reference symbol 5.1 denotes a fixing opening 5.1 which penetrates the monthly cam disc centrally, the center of which coincides with the axes of rotation of the monthly wheel and the monthly cam disc.

Hebelfedern 16 sorgen dafĆ¼r, dass die ZahnrƤder nur wohldefinierte Winkelpositionen einnehmen und dass sie in diesen Winkelpositionen verharren, bis die nƤchste Wechselwirkung mit einem anderen Element der Vorrichtung oder der Uhr stattfindet. Ferner verhindern die Hebelfedern, dass Ƥussere EinflĆ¼sse zu Fehlfunktionen fĆ¼hren.Lever springs 16 ensure that the gears assume only well-defined angular positions and that they remain in these angular positions until the next interaction takes place with another element of the device or the watch. The lever springs also prevent external influences from causing malfunctions.

Um eine korrekte Unterscheidung zwischen Monaten mit 30 und 31 Tagen zu gewƤhrleisten und damit eine Datumsfehlanzeige sowie die Notwendigkeit eines Nachstellens des Datums von Hand (ausser Ende Februar) zu vermeiden, kann die Kopplungswippe 7 und damit die Drehachsen 7.4/8.3 des Antriebsrades 8 beziehungsweise des Mitnehmerkopfes 8.1 zwei Positionen einnehmen. Die Kopplungswippe 7 ist Y-fƶrmig ausgelegt, wobei die drei durch die Y-Form gegebenen Enden der Kopplungswippc Elemente zur Interaktion mit weiteren Bauteilen des Jahreskalenders aufweisen.In order to ensure a correct distinction between months with 30 and 31 days and thus to avoid an incorrect display of the date and the need to readjust the date manually (except at the end of February), the coupling rocker 7 and thus the axes of rotation 7.4 / 8.3 of the drive wheel 8 or the driver head 8.1 take two positions. The coupling rocker 7 is designed in a Y-shape, the three ends of the coupling rocker given by the Y-shape having elements for interaction with other components of the annual calendar.

Zur besseren Visualisierung zeigt Figur 7 eine Detailansicht einer freigelegte Kopplungswippe. Das kopfseitige Ende 7.6 der Kopplungswippe weist eine Laufrolle 7.2 sowie ein Kopplungsstift 7.1 auf. Der Kopplungsstift 7.1 tastet die Monatskurvenscheibe 6 ab, weiche in zwƶlf Segmente unterteilt ist. Diese Segmente sind so angeordnet, dass sie in eindeutiger Relation zu den durch die ZahnrƤder des Monatsrades 5 gegebenen Positionen der Monate stehen, indem die Monatskurvenscheibe 6 drehfest mit dem Monatsrad 5 verbunden ist. Ferner unterscheiden sich die Segmente in ihren Radii, indem sie einen von zwei mƶglichen Radii aufweisen. Der grƶssere der beiden Radii kodiert dabei einen Monat mit 31 Tagen, wƤhrend der kleinere der beiden Radii fĆ¼r einen Monat mit 30 Tagen steht.Shows for better visualization Figure 7 a detailed view of an exposed coupling rocker. The head end 7.6 of the coupling rocker has a roller 7.2 and a coupling pin 7.1. The coupling pin 7.1 scans the monthly cam 6, which is divided into twelve segments. These segments are arranged in such a way that they are clearly related to the positions of the months given by the gear wheels of the monthly wheel 5, in that the monthly cam 6 is connected to the monthly wheel 5 in a rotationally fixed manner. Furthermore, the segments differ in their radii in that they have one of two possible radii. The larger of the two radii encodes a month with 31 days, while the smaller of the two radii stands for a month with 30 days.

Die Kopplungswippe 7 wird aufgrund einer durch ein Federblatt 7.3 erzeugten Federkraft in Richtung zum Datumsrad 4 gedrĆ¼ckt, so, dass die Laufrolle 7.2 auf der Laufspur 4.2 abrollt. Jeweils am Monatsende erreicht die Laufrolle 7.2 eine Aussparung 4.3, wodurch die Laufspur eine Bewegung der Kopplungswippe zum Datumrsad hin nicht verhindern kann.The coupling rocker 7 is pressed due to a spring force generated by a spring leaf 7.3 in the direction of the date wheel 4, so that the roller 7.2 rolls on the track 4.2. At the end of each month, the roller 7.2 reaches a recess 4.3, as a result of which the track cannot prevent the coupling rocker from moving towards the date wheel.

Liegt nun der Kopplungsstift 7.1 im Bereich eines Segmentes, welches den grƶsseren der beiden Radii aufweist, so verhindert ein Anstehen der Kopplungsstifts 7.1 am entsprechenden Segment der Monatskurvenscheibe, dass die Laufrolle in die Aussparung 4.3 reingedrĆ¼ckt wird. Die Kopplungswippe und damit die Drehachsen 7.4/8.3 des Antriebsrades beziehungsweise des Mitnehmerkopfes verbleiben daher an der ersten Position, was dazu fĆ¼hrt, dass der Mitnehmerkopf 8.1 weiterhin pro vollstƤndigem Umlauf das Datumsrad 4 um genau eine Position mit sich zieht, wie wenn sich die Laufrolle 7.2 nicht bei der Aussparung 4.3 der Laufspur 4.2 befindet.If the coupling pin 7.1 is now in the region of a segment which has the larger of the two radii, then the coupling pin 7.1 in contact with the corresponding segment of the monthly cam disc prevents the roller from being pressed into the recess 4.3. The coupling rocker and thus the axes of rotation 7.4 / 8.3 of the drive wheel or the driving head therefore remain in the first position, which means that the driving head 8.1 continues to pro complete circulation pulls the date wheel 4 by exactly one position, as if the roller 7.2 is not in the recess 4.3 of the track 4.2.

Liegt hingegen der Kopplungsstift 7.1 im Bereich eines Segmentes, welches den kleineren der beiden Radii aufweist, so kann der Kopplungsstift eine PositionsƤnderung der Kopplungswippe 7 nicht verhindern, sobald die Laufrolle in das Gebiet der Aussparung 4.3 der Laufspur 4.2 kommt. Dadurch dreht die Kopplungswippe um ihre Drehachse 7.8, und die Drehachsen 7.4/8.3 des Antriebsrades beziehungsweise des Mitnehmerkopfes verschieben sich in Richtung des Datumsrades 4. Letzteres fĆ¼hrt dazu, dass sich der Ɯberlapp der Bahn, auf welchem sich der Mitnehmerkopf bewegt und der Bahn, auf welcher die 31 ZƤhne des Datumsrades angeordnet sind, vergrƶssert.If, however, the coupling pin 7.1 lies in the area of a segment which has the smaller of the two radii, the coupling pin cannot prevent a change in position of the coupling rocker 7 as soon as the roller comes into the area of the recess 4.3 of the track 4.2. As a result, the coupling rocker rotates about its axis of rotation 7.8, and the axes of rotation 7.4 / 8.3 of the drive wheel or the driving head move in the direction of the date wheel 4. The latter leads to the overlap of the path on which the driving head and the path move which the 31 teeth of the date wheel are arranged enlarged.

In Fig. 7 sind ausserdem eine Fixierƶffnung 7.8 und ein weiterer Kopplungsstift 7.9 dargestellt. Die Achse der Fixierƶffung fƤllt mit der Drehachse der Kopplungswippe und mit derjenigen des z.B. in Figur 2 gezeigten Zahnrades 15 zusammen, welches die Kopplung des Jahreskalenders mit dem Uhrwerk bewerkstelligt. Durch diese Konstruktion wird gewƤhrleistet, dass das Zahnrad 15 eine Interaktion einerseits mit dem Uhrwerk selbst und andererseits mit dem Antriebsrad aufweist, welche unabhƤngig von der eingenommenen Position der Kopplungswippe 7 ist.In Fig. 7 a fixing opening 7.8 and a further coupling pin 7.9 are also shown. The axis of the fixing opening coincides with the axis of rotation of the coupling rocker and with that of, for example, in Figure 2 shown gear 15 together, which accomplishes the coupling of the annual calendar with the clockwork. This construction ensures that the gear 15 has an interaction on the one hand with the clockwork itself and on the other hand with the drive wheel, which is independent of the position of the coupling rocker 7.

Die Interaktion zwischen Mitnehmerkopf 8.1 und Datumsrad 4 geschieht dadurch, dass sich der Kreis, auf welchem sich der Mitnehmerkopf bewegt und der Kreis, auf welchem die 31 ZƤhne des Datumsrades angeordnet sind, partial so Ć¼berlappen, dass der Mitnehmerkopf mit einem Zahn des Datumsrades verhakt und dieses bei seinem weiteren Fortschreiten auf seiner Kreisbahn mit sich zieht. Wenn in der zweiten Position der Mitnahmevorrichtung der Ɯberlapp der Bahnen grƶsser ist, vergrƶssert sich auch die Strecke, Ć¼ber welche das Datumsrad mitgenommen wird, entsprechend: das Datumsrad wird um zwei Einheiten verstellt.The interaction between the driving head 8.1 and the date wheel 4 occurs in that the circle on which the driving head moves and the circle on which the 31 teeth of the date wheel are arranged partially overlap in such a way that the driving head hooks with a tooth of the date wheel and this entails as it progresses on its circular path. If the overlap of the webs is greater in the second position of the driving device, enlarged the distance over which the date wheel is taken also changes accordingly: the date wheel is adjusted by two units.

Die Aussparung 4.3 und die Laufrolle 7.2 sind durch diesen Mechanismus so ausgelegt, dass der Mitnehmerkopf am Ende des 30. Tages eines Monates, welcher Ć¼ber die Monatskurvenscheibe 6 als Monat mit 30 Tagen identifiziert wird, das Datumsrad um zwei Einheiten mit sich zieht. Nach diesem einen Tag, verlƤsst die Laufrolle die Aussparung 4.3 wieder, wodurch der Mitnehmerkopf wieder die gegenĆ¼ber dem Datumsrad zurĆ¼ckgezogene Position einnimmt. Dadurch zieht der Mitnehmerkopf bei seiner darauffolgenden Wechselwirkung mit dem Datumsrad dieses wieder nur um eine Position mit sich.The recess 4.3 and the roller 7.2 are designed by this mechanism in such a way that at the end of the 30th day of a month, which is identified as 30 days with the monthly cam 6, the driving head pulls the date wheel by two units with it. After this one day, the roller leaves the recess 4.3 again, as a result of which the driving head again assumes the position retracted relative to the date wheel. As a result, when it subsequently interacts with the date wheel, the driving head pulls it back only by one position.

Um die unterschiedlichen AbstƤnde zum Datumsrad in der ersten und zweiten Position auszugleichen, ist der Mitnehmerkopf radial federnd gelagert. In der gezeigten AusfĆ¼hrungsform wird dies dadurch realisiert, dass die Verbindung zwischen dem Mitnehmerkopf 8.1 und der Drehachse 8.4 des Mitnehmerkopfes elastisch deformierbar ausgelegt ist. Dies ermƶglicht es dem Mitnehmerkopf, seine Position vorĆ¼bergehend in Richtung seiner Drehachse zu verschieben, sollte durch das Datumsrad eine entsprechend gerichtete Kraft auf den Mitnehmerkopf ausgeĆ¼bt werden.In order to compensate for the different distances to the date wheel in the first and second position, the driver head is supported in a radially resilient manner. In the embodiment shown, this is realized in that the connection between the driver head 8.1 and the axis of rotation 8.4 of the driver head is designed to be elastically deformable. This enables the driver head to temporarily shift its position in the direction of its axis of rotation if a correspondingly directed force is exerted on the driver head by the date wheel.

Ferner kann der Mitnehmerkopf so ausgestaltet sein, dass eine durch die Position seiner Drehachse verursachte relativ zu den ZƤhnen des Datumsrads verƤnderte Ausrichtung des Mitnehmerkopfes zu keiner Verkantung fĆ¼hren kann.Furthermore, the driver head can be designed in such a way that an alignment of the driver head caused by the position of its axis of rotation, which is changed relative to the teeth of the date wheel, cannot lead to tilting.

Ein weiterer Vorteil einer radial federnden Lagerung des Mitnehmerkopfes ist, dass durch entsprechende Auslegung der federnden Lagerung der Mitnehmerkopf zwischen die ZƤhne des Datumsrades hineingedrĆ¼ckt wird. Dadurch kƶnnen relative Positionsfehler zwischen Datumsrad und Mitnahmevorrichtung, sowohl was die relative Lage ihrer Drehachsen als auch die Winkelpositionen von Datumsrad und Mitnehmerkopf betrifft, korrigiert werden.A further advantage of a radially resilient mounting of the driving head is that the driving head is designed accordingly is pressed between the teeth of the date wheel. As a result, relative position errors between the date wheel and driving device, both with regard to the relative position of their axes of rotation and the angular positions of the date wheel and driving head, can be corrected.

In den Figuren 4a-4f ist der eben beschriebene, der Vorrichtung zu Grunde liegende Mechanismus Schritt fĆ¼r Schritt gezeichnet. Wie bereits erwƤhnt, wird die LƤnge des Monats wird durch eine Segmentierung der Kurvenscheibe 6 kodiert. In der gezeigten AusfĆ¼hrungsform entspricht ein Segment mit grƶsserem Radius einem Monat mit 31 Tagen und ein Segment mit kleinerem Radius einem Monat mit 30 Tagen. Wird der grƶsseren Radius mit H und den kleineren Radius mit L bezeichnet, weist die Monatskurvenscheibe folgende Radii-Abfolge fĆ¼r die Monate Januar bis Dezember auf: HLHLHLHHLHLH.In the Figures 4a-4f the mechanism on which the device is based is drawn step by step. As already mentioned, the length of the month is encoded by segmenting cam 6. In the embodiment shown, a segment with a larger radius corresponds to a month with 31 days and a segment with a smaller radius corresponds to a month with 30 days. If the larger radius is denoted by H and the smaller radius by L, the monthly cam disc has the following sequence of radii for the months January to December: HLHLHLHHLHLH.

Figur 4a zeigt die Ausgangslage am 29. Tag eines Monats mit 30 Tagen. Die Laufrolle 7.2 befindet sich noch vor der Aussparung 4.3, wodurch ein Schalten der Kopplungswippe verhindert wird, obwohl der Kopplungsstift 7.1 ein solches nicht verhindern wĆ¼rde. Dadurch bleibt die Drehachse 8.3 des Mitnehmerkopfes 8.1 in der gegenĆ¼ber dem Datumsrad 4 zurĆ¼ckgezogenen Position und der Mitnehmerkopf zieht das Datumsrad in der bevorstehenden Interaktion nur um eine Position mit sich. Figure 4a shows the starting position on the 29th day of a month with 30 days. The roller 7.2 is still in front of the recess 4.3, which prevents switching of the coupling rocker, although the coupling pin 7.1 would not prevent it. As a result, the axis of rotation 8.3 of the driver head 8.1 remains in the retracted position with respect to the date wheel 4 and the driver head pulls the date wheel by only one position in the upcoming interaction.

Figur 4b zeigt die Situation am 30. Tag eines Monats mit 30 Tagen. Da sich der Kopplungsstift 7.1 Ć¼ber einem Segment der Kurvenscheibe 6 befindet, welches einen kleinen Radius aufweist, wird ein Reinlaufen der Laufrolle 7.2 in die Aussparung 4.3 nicht verhindert. Folglich dreht sich die Kopplungswippe, und die Drehachse 8.3 der Mitnahmevorrichtung wechselt in die dem Datumsrad nƤhergelegene Position. Dies fĆ¼hrt dazu, dass der Mitnehmerkopf das Datumsrad in der bevorstehenden Interaktion um zwei Positionen mit sich zieht. Figure 4b shows the situation on the 30th day of a month with 30 days. Since the coupling pin 7.1 is located over a segment of the cam plate 6 which has a small radius, running of the roller 7.2 into the recess 4.3 is not prevented. As a result, the coupling rocker rotates and the axis of rotation 8.3 of the driving device changes to the position closer to the date wheel. As a result, the driver head pulls the date wheel by two positions in the upcoming interaction.

Figur 4c zeigt die Situation am ersten Tag des nachfolgenden Monats. Die Laufrolle 7.2 hat die Aussparung 4.3 wieder verlassen. Folglich hat sich die Kopplungswippe wieder in seine ursprĆ¼ngliche Position zurĆ¼ckgedreht, wodurch die Drehachse 8.3 der Mitnahmevorrichtung wieder die dem Datumsrad zurĆ¼ckgezogene Position einnimmt. Figure 4c shows the situation on the first day of the following month. The roller 7.2 has left the recess 4.3 again. As a result, the coupling rocker has turned back into its original position, whereby the axis of rotation 8.3 of the driving device again assumes the position retracted from the date wheel.

Figur 4d zeigt die Situation am 30. Tag eines Monats mit 31 Tagen. Da es sich um einen Monat mit 31 Tagen handelt, befindet sich der Kopplungsstift 7.1 Ć¼ber einem Segment der Kurvenscheibe 6, welches einen grossen Radius aufweist. Durch das Aufliegen des Kopplungsstiftes auf dem Segment wird ein Schalten der Kopplungswippe und damit der Drehachse der Mitnahmevorrichtung verhindert. Figure 4d shows the situation on the 30th day of a month with 31 days. Since it is a month with 31 days, the coupling pin 7.1 is located over a segment of the cam 6, which has a large radius. By the coupling pin resting on the segment, switching of the coupling rocker and thus the axis of rotation of the driving device is prevented.

Figur 4e zeigt die Situation am 31. Tag eines Monats mit 31 Tagen. Sowohl Kopplungsstift 7.1 als auch die Laufrolle 7.2 verhindern nun ein Schalten der Kopplungswippe, wodurch die Drehachse 8.4 der Mitnahmevorrichtung in der dem Datumsrad zurĆ¼ckgezogenen Position verharrt. Somit zieht der Mitnahmekopf 8.1 das Datumsrad 4 auch an diesem Tag nur um eine Position auf den ersten Tag des nachfolgenden Monats weiter. Figure 4e shows the situation on the 31st day of a month with 31 days. Both the coupling pin 7.1 and the roller 7.2 now prevent switching of the coupling rocker, as a result of which the axis of rotation 8.4 of the driving device remains in the position retracted from the date wheel. Thus, the driving head 8.1 pulls the date wheel 4 only on this day by one position to the first day of the following month.

Zum erstmaligen Einstellen des Datums, beziehungsweise zum Wiedereinstellen des Datums z.B. nach langem Nichtgebrauch der Uhr, sowie zur Datumseinstellung Ende Februar durch den Benutzer, weist die Uhr einen Mechanismus auf, welcher ein Entkoppeln von Datumsanzeige und dessen Antrieb durch das Uhrwerk ermƶglicht. Die Elemente, welche in einer beispielhaften AusfĆ¼hrungsform die Ɯbergabe der Kontrolle Ć¼ber die Datumsanzeige vom Antriebsrad 8 zum Einstellzahnrad 11 bewirken, sind ebenfalls in Fig. 2 dargestellt. Dieser Mechanismus wird nun anhand der in den Figuren 3a - 3c gezeigten Detailansichten erklƤrt.To set the date for the first time, or to reset the date, e.g. after a long period of non-use of the watch, as well as to set the date by the user at the end of February, the watch has a mechanism that enables the date display to be uncoupled and driven by the clockwork. The elements which, in an exemplary embodiment, transfer control of the date display from the drive wheel 8 to the setting gear 11 are also shown in FIG Fig. 2 shown. This mechanism is now described in the Figures 3a - 3c detailed views shown explained.

In der gezeigten AusfĆ¼hrungsform basiert der Mechanismus auf einer Entkopplungswippe 9 ( Figur 3a ), welche am gegen die Kopplungswippe 7 hin gelegenen Ende 9.1 zwei gegeneinander abgewinkelte FlƤchen aufweist. Eine dieser beiden FlƤchen wird nachfolgend in Anlehnung an ihre Funktion als KopplungsflƤche 9.5, die andere als EntkopplungsflƤche 9.6 bezeichnet. Ferner weist die Entkopplungswippe einen gegen eine Einstellvorrichtung 13 hin gelegenen Kopplungsstift 9.3, seitlich ein Federblatt 9.2 und eine Fixierƶffnung 9.7 auf, wobei das Zentrum der Fixierƶffnung mit der Drehachse der Entkopplungswippe zusammenfƤllt. Schliesslich weist der Mechanismus ein Umlenkelement 10 auf.In the embodiment shown, the mechanism is based on a decoupling rocker 9 ( Figure 3a ), which has two mutually angled surfaces at the end 9.1 lying against the coupling rocker 7. One of these two areas is referred to below on the basis of its function as a coupling area 9.5, the other as a decoupling area 9.6. Furthermore, the decoupling rocker has a coupling pin 9.3 located against an adjusting device 13, a spring leaf 9.2 on the side and a fixing opening 9.7, the center of the fixing opening coinciding with the axis of rotation of the decoupling rocker. Finally, the mechanism has a deflection element 10.

Figur 3b zeigt die Situation, in welcher die Datumsangabe durch den mechanischen Jahreskalender gesteuert wird. Die Einstellvorrichtung 13 ist dabei in ihrer maximal in das GehƤuse eingelassenen Grundposition. In dieser Position nehmen Umlenkelement 10 und Entkopplungswippe 9 eine Ausrichtung ein, welche dazu fĆ¼hrt, dass ein auf der Unterseite eines Fussteils 7.7 der Kopplungswippe 7 angebrachter Entkopplungsstift 7.5 auf der KopplungsflƤche 9.5 aufliegt (siehe auch Figuren 7 und 3.c). Figure 3b shows the situation in which the date is controlled by the mechanical annual calendar. The adjusting device 13 is in its maximum basic position let into the housing. In this position, the deflection element 10 and the decoupling rocker 9 assume an alignment, which leads to the fact that a decoupling pin 7.5 attached to the underside of a foot part 7.7 of the coupling rocker 7 rests on the coupling surface 9.5 (see also Figures 7 and 3.c ).

Figur 3c zeigt den Mechanismus, welcher dazu fĆ¼hrt, dass die Kontrolle Ć¼ber die Datumsanzeige vom Uhrwerk auf die Einstellvorrichtung 13 wechselt. Die in Fig. 3c gezeigten Pfeile bezeichnen dabei Richtungen von Bewegungen, welche von den entsprechenden Elementen wƤhrend der Schritte i bis vi vorgenommen werden kƶnnen. Das Herausziehen der Einstellvorrichtung 13 (Schritt i) aus dem GehƤuse 14 in radiale Richtung bis zu einem Anschlag oder Rastpunkt (nicht gezeigt), fĆ¼hrt dazu, dass das Umlenkelement 10 den Kopplungsstift 9.3 in Richtung zum Zentrum der Uhr drĆ¼ckt (Schritt ii) und dass das zur Kopplungswippe hin gelegene Ende 9.1 der Entkopplungswippe radial nach aussen dreht (Schritt iii). Dadurch wechselt der Entkopplungsstift 7.5 von der KopplungsflƤche 9.5 auf die EntkopplungsflƤche 9.6, was dazu fĆ¼hrt, dass sich die auf der Kopplungswippe 7 befindliche Drehachse 8.3 des Mitnehmerkopfes 8.1 vom Datumsrad 4 so weit entfernt (Schritt iv), dass sich die Bahn, auf welchem sich der Mitnehmerkopf bewegt und der Kreis, auf welchem die 31 ZƤhne des Datumsrades angeordnet sind, nicht mehr Ć¼berlappen. Als Folge davon ist die Datumsanzeige vom Antriebsrad und somit vom Uhrwerk entkoppelt. Gleichzeitig mit der Entkopplung von Datumsanzeige und Antriebsrad tritt das in Fig. 2 gezeigte Einstellzahnrad 11 in Kontakt mit dem Anzeige-Zahnkranz 1 und mit dem Gewinde der Einstellvorrichtung 13. Dadurch wird es mƶglich, durch Drehen der Einstellvorrichtung (Schritt v) das Datum sowohl vor- als auch zurĆ¼ckzudrehen (Schritt vi). Figure 3c shows the mechanism which causes the control over the date display to change from the clockwork to the setting device 13. In the Fig. 3c The arrows shown denote directions of movements which can be carried out by the corresponding elements during steps i to vi. Pulling the setting device 13 (step i) out of the housing 14 in the radial direction up to a stop or locking point (not shown) leads to the deflecting element 10 pushing the coupling pin 9.3 towards the center of the watch (step ii) and that end 9.1 of the decoupling rocker, which is located towards the coupling rocker, rotates radially outward (step iii). As a result, the decoupling pin 7.5 changes from the coupling surface 9.5 to the decoupling surface 9.6, which leads to the fact that the axis of rotation 8.3 located on the coupling rocker 7 of the driving head 8.1 from the date wheel 4 so far (step iv) that the path on which the driving head moves and the circle on which the 31 teeth of the date wheel are arranged no longer overlap. As a result, the date display is decoupled from the drive wheel and thus from the clockwork. This occurs simultaneously with the decoupling of the date display and drive wheel Fig. 2 shown setting gear 11 in contact with the display ring gear 1 and with the thread of the adjusting device 13. This makes it possible to turn the date by rotating the adjusting device (step v) both forward and backward (step vi).

Claims (14)

  1. A date display device for a watch (100), wherein the device is equipped for realising an annual calendar function and comprises the following elements:
    - a drive wheel (8) which is coupled to a mechanical movement;
    - a driving device which is driven by the drive wheel (8);
    - a date wheel (4) which periodically interacts with the driving device and is driven by said driving device and whose angular position is characteristic of the date; and
    - a month wheel (5) which is periodically driven in a manner depending on a state of the date wheel,
    wherein the driving device comprises a driver (8.1) and a rotation axis (8.3), wherein the driver moves on a path about the rotation axis (8.3) and the driving device adopts at least two different positions relative to the date wheel (4), wherein given the periodic interaction with the date wheel, the driving device in a first position advances the date wheel by a single unit and in a second position by a plurality of units and wherein the device is configured, given a predefined angular position of the date wheel, to bring the driving device from the first into the second position or not depending on a state of the month wheel,
    characterised in that the rotation axis (8.3) of the driving device adopts a third position relative to the date wheel (4), in which third position
    - the driving device does not interact with the date wheel; and in which
    - the date can be set via a crown which is arranged at the outside of a casing (14) of the watch,
    - wherein the driving device can be brought into the third position by way of actuating the crown.
  2. A device according to claim 1, wherein the driver is designed as a driver head (8.1).
  3. A device according to one of the preceding claims, wherein the driver is connected to the rotation axis (8.3) such that the driver is resiliently mounted in the direction which is radial with respect to its path.
  4. A device according to one of the preceding claims, wherein the rotation axis (8.3) of the driving device is identical to the rotation axis (7.4) of the drive wheel and is fixedly connected to this.
  5. A device according to one of the preceding claims, wherein in the first of the at least two positions of the driving device, the driver per complete revolution about its rotation axis rotates the date wheel by about 360/(31āˆ— n) degrees and in the second of the at least two positions of the driving device, the driver per complete revolution about its rotation axis rotates the date wheel by about 2āˆ—360/(31āˆ— n) degrees, wherein n is an integer.
  6. A device according to claim 5, wherein the date wheel is designed as a date gear wheel with 31āˆ— n teeth.
  7. A device according to one of the preceding claims, wherein the driving device via the driver interacts with the date wheel in a direct manner, i.e. without using an intermediate wheel.
  8. A device according to one of the preceding claims, wherein the position of the rotation axis (8.3) of the driving device differs between the first and the second position.
  9. A device according to claim 8, comprising a coupling lever (7), on which the rotation axis (8.3) of the driving device is seated, wherein the coupling lever for its part comprises a coupling lever rotation axis (7.8) which does not coincide with the rotation axis of the driving device, and wherein a movement between the first and the second position entails a rocking movement of the coupling lever about the coupling lever rotation axis.
  10. A device according to claim 9, wherein the coupling between the movement and the drive wheel (8) is effected via a gear wheel (15), whose rotation axis is seated on the rotation axis (7.8) of the coupling lever.
  11. A device according to one of the claims 9 or 10, wherein the coupling lever (7) comprises a first coupling portion in the form of a roller (7.2) which moves on a running track (4.2) which is fixedly connected to the date wheel (4) and which has a recess (4.3), wherein a movement of the roller (7.2) into the recess (4.3) corresponds to a transition from the first into the second position.
  12. A device according to one of the claims 9 to 11, comprising a month cam disk (6) which is coupled onto the month wheel (5) or is formed by this, wherein the coupling lever comprises a second coupling portion which interacts with the month cam disc such that the month cam disc permits or prevents a movement into the second position depending on its angular position.
  13. A device according to one of the preceding claims, comprising a month cam disc (6) which is coupled onto the month wheel (5) or is formed by this, wherein the month cam disc codes a month length and permits or prevents a movement into the second position depending on its angular position.
  14. A watch, comprising a device according to one of the preceding claims.
EP16723240.4A 2015-05-08 2016-05-04 Annual calendar for mechanical watches Active EP3295260B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH00638/15A CH711049A1 (en) 2015-05-08 2015-05-08 Year calendar for mechanical watches.
PCT/CH2016/000076 WO2016179714A1 (en) 2015-05-08 2016-05-04 Annual calendar for mechanical watches

Publications (2)

Publication Number Publication Date
EP3295260A1 EP3295260A1 (en) 2018-03-21
EP3295260B1 true EP3295260B1 (en) 2020-02-12

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ID=53269283

Family Applications (1)

Application Number Title Priority Date Filing Date
EP16723240.4A Active EP3295260B1 (en) 2015-05-08 2016-05-04 Annual calendar for mechanical watches

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US (1) US10317844B2 (en)
EP (1) EP3295260B1 (en)
JP (1) JP6609325B2 (en)
KR (1) KR102089631B1 (en)
CN (1) CN107580689B (en)
CH (1) CH711049A1 (en)
HK (1) HK1246409A1 (en)
SG (1) SG11201708693TA (en)
WO (1) WO2016179714A1 (en)

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EP3722890A1 (en) * 2019-04-10 2020-10-14 ETA SA Manufacture HorlogĆØre Suisse Device for displaying a series of periodic events that form an annual cycle and timepiece comprising such a display device

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Also Published As

Publication number Publication date
CH711049A1 (en) 2016-11-15
US10317844B2 (en) 2019-06-11
JP2018514778A (en) 2018-06-07
US20180095423A1 (en) 2018-04-05
HK1246409A1 (en) 2018-09-07
EP3295260A1 (en) 2018-03-21
CN107580689A (en) 2018-01-12
WO2016179714A1 (en) 2016-11-17
CN107580689B (en) 2020-04-07
SG11201708693TA (en) 2017-11-29
KR102089631B1 (en) 2020-03-17
JP6609325B2 (en) 2019-11-20
KR20180002697A (en) 2018-01-08

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