EP2498142A2 - Calendar mechanism for mechanical timepiece - Google Patents
Calendar mechanism for mechanical timepiece Download PDFInfo
- Publication number
- EP2498142A2 EP2498142A2 EP12405025A EP12405025A EP2498142A2 EP 2498142 A2 EP2498142 A2 EP 2498142A2 EP 12405025 A EP12405025 A EP 12405025A EP 12405025 A EP12405025 A EP 12405025A EP 2498142 A2 EP2498142 A2 EP 2498142A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- month
- program
- month wheel
- control
- wheel
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- G—PHYSICS
- G04—HOROLOGY
- G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
- G04B19/00—Indicating the time by visual means
- G04B19/24—Clocks or watches with date or week-day indicators, i.e. calendar clocks or watches; Clockwork calendars
- G04B19/241—Clocks or watches with date or week-day indicators, i.e. calendar clocks or watches; Clockwork calendars the date is indicated by one or more hands
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- G—PHYSICS
- G04—HOROLOGY
- G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
- G04B15/00—Escapements
- G04B15/06—Free escapements
- G04B15/08—Lever escapements
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- G—PHYSICS
- G04—HOROLOGY
- G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
- G04B15/00—Escapements
- G04B15/14—Component parts or constructional details, e.g. construction of the lever or the escape wheel
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- G—PHYSICS
- G04—HOROLOGY
- G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
- G04B19/00—Indicating the time by visual means
- G04B19/24—Clocks or watches with date or week-day indicators, i.e. calendar clocks or watches; Clockwork calendars
- G04B19/243—Clocks or watches with date or week-day indicators, i.e. calendar clocks or watches; Clockwork calendars characterised by the shape of the date indicator
- G04B19/247—Clocks or watches with date or week-day indicators, i.e. calendar clocks or watches; Clockwork calendars characterised by the shape of the date indicator disc-shaped
- G04B19/253—Driving or releasing mechanisms
- G04B19/25333—Driving or releasing mechanisms wherein the date indicators are driven or released mechanically by a clockwork movement
- G04B19/25353—Driving or releasing mechanisms wherein the date indicators are driven or released mechanically by a clockwork movement driven or released stepwise by the clockwork movement
- G04B19/2536—Driving or releasing mechanisms wherein the date indicators are driven or released mechanically by a clockwork movement driven or released stepwise by the clockwork movement automatically corrected at the end of months having less than 31 days
Definitions
- the invention relates to the field of watchmaking. It relates to a calendar circuit according to the preamble of patent claim 1.
- Calendar circuits are known, for example CH 680 640 B5 and CH696861 A5 ,
- the month wheel and the control perform continuous rotational movements.
- the month wheel makes one revolution in one month and the control one revolution in one year or four years.
- the control may have several parts whose configuration repeats every four years.
- control is arranged on the month wheel and moved with the month wheel.
- control system has a control cam which is fixedly arranged on the month wheel and which, when being indexed by the sensing element, respectively controls an indexing by one day.
- control cam has a gap in which the control is scanned by the sensing element.
- control is a round program disk which is rotatably mounted on the month wheel and at its periphery program elements, in particular cuts in the radial direction, which encode the indexing by one, two, three or four days.
- This coding causes, for example, that the scanning element moves into the incisions during scanning and, according to the depth of an incision, a hook of the scanning element moves over one to four teeth of the month wheel.
- the current sector is at the end of the month in the area of the gap of the control cam and is scanned by the sensing element.
- the switching can be coded at the end of each month for a whole year (for the annual calendar) or for four years (for the perpetual calendar) by program elements or cuts in the size of the program disk. There is no incision for a month with 31 days, for months with 30, 28 and 29 days there are correspondingly deeper incisions, which cause a progression of 2, 3, and 4 days.
- the program disk rotates once a year and has another control which, every four years when scanning the program disk cut corresponding to February 28, limits the scanning motion of the scanning element, thereby advancing the scanning element by only one day , For the following day (29th of February) there is another incision in this sector of the program disk, which triggers a three-day switch. This further incision will be skipped in normal years because it will trigger a 4-day advance on February 28th. Sectors for the remaining months have a cut only for the 30-day months.
- the further control element can be arranged to rotate on the program disk and with the program disk, whereby its rotation with respect to the program disk is stifled, in particular by a factor of four.
- the reduction can be continuous, by means of gears.
- the further control element can be incrementally indexed by means of a four-armed star wheel, preferably at a season removed from February. Alternatively, it can be indexed with a four-armed Maltese cross gear.
- the program elements are arranged in different levels of the program disk, and is determined by the current day of a month, which plane is scanned by the scanning element.
- the current day corresponds to the rotational position of the month wheel with respect to the "fixed world", typically a clock board, and thus also with respect to the storage of the Abtastriches. This can be avoided that even with larger tolerances of parts an incision, for example, belongs to the 30th of a month, due to the relative rotation of the program disk with respect to the month wheel on the 28th or 29th of another month is met by the sensing element.
- the three days (28th to 30th), in which the program disc is scanned can each be assigned to a separate level. In practice, however, it is sufficient to avoid overlaps if all program elements of the 28th and 29th - four in four years - are arranged in a first level and all program elements of the 30th - sixteen in four years - in a second level.
- the program disc with its two planes can be arranged with the same diameter and coaxial with the control cam.
- the control curve corresponds to a third level, parallel to the first two levels, for all days except the 28th to 30th day, where there is a gap.
- This third level limits the movement of the sample element on these remaining days to the one-day handoff, only between the 28th to 30th the gap allows for a wider sweep.
- the first level is always scanned on the 28th and 29th, with 11 of 12 months being incremented by one day only.
- the second level is always scanned. The cuts for the 30-day months do not conflict with the scans for the 28th and 29th in other months because they are in a different level.
- the program disc may have an internal toothing for driving, or a coaxial gear with a smaller diameter.
- the mechanism can be easily equipped with an additional indexing element, which, for example, manually operated with a pusher.
- the shift lever itself can be actuated with a pusher, in addition to the operability by the switching spring.
- the shift lever can be actuated with an actuating element, which on the one hand lifts the hook radially and allows a stepwise or continuous turning of the month wheel in both directions.
- an adjusting device may be provided which lifts the gear lever from the month wheel, the scanning picks up the control system and an actuator with the calendar mechanism, in particular the month wheel, engages, thereby enabling manual adjustment of the calendar mechanism.
- FIG. 1 shows a calendar circuit.
- a month wheel 1 with a toothing 17 with 31 peripheral teeth carries a first and second gear 2, 3 and a program disc 4, which acts as a control.
- the first gear 2 rotates the month wheel 1 and rolls on a fixed gear, which is coaxial with the axis of the month wheel 1, from, and is reduced in the ratio 1/3.
- the direction of rotation of the wheels is indicated by arrows.
- the second gear 3 is driven by the first gear 2, reduced in the ratio 1 ⁇ 4, and performs one revolution per year.
- the program disk 4 is driven by the second gear 3 and reduced in the ratio 1 ⁇ 4, so performs a revolution in four years.
- the teeth of these translation gears is not shown here as well as in the other figures, the gears are shown only by circles.
- the month wheel 1 has a circumferential cam 5, axially offset from the teeth (the cam can also be referred to as a rim or as a hoop).
- Program disk 4 and control cam 5 together form a control system which is scanned by a scanning element once every 24 hours.
- Month wheel 1 is incremented by one tooth every 24 hours and one, two, three or four teeth at the end of the month.
- the handover is done by a preferably resilient shift lever 6, which drives by a lever 8 drives around this number of teeth and then recoils.
- the number of teeth is determined by a sensing element in the form of a Abtastriches 7, which retracts against the control cam 5 or in cuts 13 of the program disk 4: Depending on the depth of the incision a corresponding number of teeth is bypassed.
- the drive of the lever 8 is done via a spring lever 11, which in turn is driven by a worm wheel 12, which rotates once every 24 hours.
- the sensing pin 7 scans the control cam 5 and therefore switches on by one day or one tooth of the month wheel 1 on. At the end of the month, however, it scans the program disk 4, which protrudes with its circumference into a gap 5 'of the control cam 5.
- the program disk 4 rotates (with respect to the month wheel) only by 0.246 ° per day, which is why it is difficult to read different information from the disc from day to day. But by the program disk 4 is rotated with the month wheel 1, the angle difference from day to day at the end of the month is much larger and the cuts of the different days can be easily scanned separately from each other.
- FIG. 2 shows the calendar circuit in a different position. For clarity, only the cuts 13 for February are shown in the program disk 4. The three deeper cuts correspond to a February 28 (4 day advancement), the less deep incision, which is active only every four years, February 29 (3 day advancement), and the uncut scope of the program disc 4 corresponds to a progression for one day, for a month with 31 days.
- the in the FIG. 1 shown position thus corresponds to the 29th of February a leap year, after which at midnight, the indexing by 3 teeth happens.
- the state after switching is in FIG. 2 shown, it corresponds to the announcement of March 1; the month wheel 1 indicates the first day of the month.
- the sensing pin 7 abuts against the cam 5, so that the handover is again limited to a day.
- FIG. 3 schematically shows the full program disk 4 of the calendar circuit.
- the incision on February 29 is not exactly offset from one of the incisions on February 28, but offset by about 11.6 °, as it has to be activated one day later.
- the radius of the program disk 4 can be varied according to the size of the gap in the control cam and to avoid that the control sections (with and without cuts) of individual days of adjacent months overlap each other.
- FIG. 4 shows an exemplary display for calendar switching.
- the month wheel 1, the second gear 3 and the program disk 4 are each assigned a pointer for displaying days (1-31), months (Jan-Dec) and Wegjahresindikation (1-4).
- some or all of the displays may be realized by other means, such as dials behind a window, and / or with non-coaxial hands.
- the transmission of the movement of the respective wheel 1, 3, 4 to the coaxial pointer takes place, for example, in each case by means of two wheels with the same diameter, one of which about the axis of the respective wheel with the wheel, and the other with the pointer to the common central
- the axis of the display turns. Since the construction of the calendar circuit is simple and can be realized small, the display with the whole calendar circuit can be arranged eccentrically in a partial area of the bezel as shown.
- FIG. 5a -c shows a variant of the calendar circuit.
- the program disk 4 is also here on the month wheel 1 and with the month wheel rotating over a fourth gear 2 'over the month wheel 1 stocked by a factor of 12, so turns once a year about its axis.
- Each month is assigned a sector of the scope of the program disk of 30 °.
- the diameter of the program disk 4 is chosen so that such a sector on the circumference of the program disk 4 in about the Gap of the cam 5 corresponds.
- the gap lies with the sampling points for the 28th, 29th and 30th day of each month. For months less than 31 days, then the sector of the program disk 4 which is in the gap encodes which day is advanced by how many days.
- the operation is thus the same as in the embodiment of Figures 1-3 , with the difference that the angles of the sectors here are larger and the program disk encodes only the months of a single year.
- this variant can be operated without further elements and thus realizes a calendar circuit which switches correctly in all months with the exception of leap years ("annual calendar").
- another control 14 may be provided, which prevents every four years that the sensing pin 7 dips into the recess 13 of the 28th February.
- This further control element 14 is here a protruding cam, which is rotatably arranged on the program disk 4 and rotates once every four years. During three years the incision 13 of the 28th of February is free, in one leap year it is blocked.
- FIG. 5a shows the elements that work together on February 28th of a leap year: the cam prevents it from plunging into the 28th of February cut, it only switches on by one day, the next day the stylus 7 plunges into the (less deep) cut February 29, and continues for three days.
- FIG. 5b shows a section with the programming disk 4 without the further control element 14.
- FIG. 5c shows the further control element 14 with the protruding cam alone.
- the further control element 14 has in this embodiment, a star wheel, which by another cam (not shown) on the month wheel 1 once a year is actuated when the program disk 4 performs its annual revolution with respect to the month wheel 1. This happens at a sufficient distance from the month of February.
- a locking spring 19 holds the further control element 14, if it is not rotated by the further cam, in a defined position.
- FIG. 6a -b shows another variant of the calendar circuit.
- the cuts 13 of the program disk 4 and the operating principle regarding the handover in normal years and leap years are the same as in the embodiment of FIG. 5a c.
- the further control element 14 is not rotated via a star wheel but continuously via gears respectively a toothing with a reduction of 1/4 with respect to the programming disk 4.
- the further control element 14 has an external toothing which rolls on a fifth toothed wheel 20 about the axis of rotation of the programming disk 4, the fifth toothed wheel 20 being fixed with respect to the month wheel.
- FIG. 6b shows the further control element 14, also with a protruding cam 18 by itself, wherein the protruding cam is located in a different plane than the gear.
- the sensing pin 7 thus acts only in the plane of the cam 18 and the program disc 4 and the control cam 5, but not the gear of the further control 14th
- FIGS. 5a and 6a the respective embodiment of the further control element 14 is shown drawn out for the sake of better illustration. It is, however, preferably arranged between month wheel 1 and program disk 4, so that the drive via the cam or the gearwheel on the month wheel can be realized.
- the fourth gear 2 'below that can be arranged on the side opposite the program disc 4 side of the month wheel 1. There it rolls off at a further gear fixed with respect to the board.
- FIG. 7 is also schematically indicated how various pointers 21 (or discs) for displaying day, month and leap year can be arranged coaxially.
- FIG. 8 shows elements of a variant of the calendar circuit.
- the teeth of the month wheel 1 not a larger radius so the control cam, but are arranged as a toothing 17 on a cylindrical portion of the month wheel 1 with a smaller radius. Accordingly, the lever 6 can be made smaller and only have to cover smaller paths when moving forward.
- This variant of the toothing 17 can of course be combined with all variants of program discs (four-year disc, annual disc with and without further control).
- FIG. 9 shows the function of a control device.
- This is actuated by an actuating element, for example a pusher or a crown (not shown), whereby the lever 6 and the sensing pin 7 are lifted so that the teeth of the month wheel and the control cam respectively the program disk 4 are released with cuts 13 and adjusted can.
- an actuator 15 is brought into engagement with gears with, for example, a toothing of the month wheel 1 and thus allows an adjustment of the month wheel and coupled thereto further elements, in particular the month disc, for example via the winding shaft of the clock.
- gears may also be present only one control element, which switches the month wheel 1 by one day with each operation (forward or backward).
- a detent spring 16 may be present, which engages resiliently in the toothing 17 (1 tooth per day) of the month wheel.
- a blocking circuit which blocks the actuation of the actuating device during corresponding times of the day.
- the blocking device to scan the worm wheel 12, or one with the Worm disc connected control disc (not shown) which also rotates once in 24 hours.
- FIG. 10 shows a variant of a program disk 4 as a control element of the calendar circuit, together with a disc which forms the control cam 5.
- the other elements such as reduction (to one revolution per four years), shifter, feeler pin, gearing, etc. are not shown, but work together in the same manner as already described, with the difference that the stylus on the day of the month by different Levels of program disk is controlled.
- the program disc has a first plane 4a and a second plane 4b.
- the program disc can be made in one piece or from two superimposed, preferably firmly connected discs with notches 13.
- the program disk 4a, 4b axially along its axis of rotation displaced (indicated by double arrow).
- the FIG. 10 shows the program disc 4a, 4b in a first position, with a distance 4d to the disc with the control cam 5. In a second position, the distance 4d is smaller or zero.
- This shift can be done by means of a cam or link ("disc control curve", not shown), which is firmly connected to the program disc 4a, 4b, rotates with it and engages in a fixed cam, or vice versa with a cam on the program disc 4a, 4b and a fixed disc control curve.
- control system is designed so that on all days of a month with the exception of the 28th, 29th and 30th day the control curve 5 limits the sampling, on the 28th and 29th the first plane is scanned by the scanning pin 7 , and on the 30th day the second level.
- the program disk 4a, 4b is brought to the second position on the 30th day with the disk control cam and is on the 28th and 29th in the first position.
- For the shift from the second to the first position is available the whole time from the 1st to the 28th, accordingly several individual indexing movements, since in this time the control cam is authoritative and the program disc is not scanned.
- the shift from the first to the second position must occur between the 29th and the 30th day.
- FIGS 11-12 show schematically a scan of this program disk to different data.
- the scanning pin 7 has two scanning areas or scanning fingers, of which a first 7a always acts in the plane of the control cam, and a second 7b in the plane in which each one of the two levels of the program disc 4a, 4b - depending on their axial position - lies.
- a first 7a always acts in the plane of the control cam
- a second 7b in the plane in which each one of the two levels of the program disc 4a, 4b - depending on their axial position - lies.
- the movement of the scanning pin 7 on the first finger 7a is limited by the cam 5 and thus advances only by one day. Only on the said three days does the first finger 7a strike the gap 5 'of the control cam and the second finger 7b becomes authoritative.
- the second finger 7b strikes the first level 4a. There is no cut except in February and it will be switched on by one day. In February, the second finger 7b strikes one of the four first-level incisions on the 28th or 29th, and continues for four or three days according to the depth of the incision.
- the program disk 4a, 4b in the second position, so that the second finger 7b scans the second level 4b.
- the control curve 5 is again decisive. The in the FIGS.
- 11 and 12 situation illustrated corresponds to the sample 29 ( Fig. 11 ) and on 30 June ( Fig. 12 ):
- the program disk On June 29, the program disk is in the first position, the distance 4d is greater, and the second finger 7b scans the first plane 4a. If the planes were not separated, that is, all the incisions were on one plane, then it could be a problem that in the second plane 4b about this position along the circumference, a cut for 30 April (with "30.4.” ) is present.
- the program disk is in the second position, the distance 4d is smaller, and the second finger 7b scans the second level 4b. He enters the recess for the 30th of June and continues for two days.
- the program disk 4a, 4b has the same diameter on the peripheral surface, which is scanned by the Abtastrich, for simplicity, the same diameter as the control cam 5, but it can also have a smaller diameter and be mounted eccentrically on the month wheel 1, analogous to the program discs. 4 the other embodiments. In the latter case, the axial displacement of the two planes 4a, 4b with disk control cam and cam with respect to the month wheel 1 happens.
- the arrangement of the two levels 4a, 4b of the program disc can also be reversed, ie adjacent to the second level with the coding for the 30th of the control cam 5. Then the pulley control cam or generally the pulley control is adapted to have the program disc 4a, 4b on the 28th and 29th in the position closer to the control cam and on the 30th in the remote position.
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Abstract
Description
Die Erfindung bezieht sich auf das Gebiet der Uhrenmacherei Sie bezieht sich auf eine Kalenderschaltung gemäss dem Oberbegriff des Patentanspruchs 1.The invention relates to the field of watchmaking. It relates to a calendar circuit according to the preamble of
Kalenderschaltungen sind beispielsweise bekannt aus
Bekannte Kalenderschaltungen für ewige Kalender sind komplex.Known calendar circuits for perpetual calendars are complex.
Es ist deshalb Aufgabe der Erfindung, eine mechanische Kalenderschaltung für einen Jahreskalender, d.h. mit Berücksichtigung der unterschiedlichen Längen der Monate eines Jahres, oder einen ewigen Kalender, d.h. zusätzlich mit Berücksichtigung der Schaltjahre, zu schaffen, welche einfach aufgebaut und herzustellen ist.It is therefore an object of the invention to provide a mechanical calendar circuit for an annual calendar, i. considering the different lengths of the months of a year, or a perpetual calendar, i. in addition, taking into account leap years, which is simple to design and manufacture.
Diese Aufgabe löst eine Kalendermechanik mit den Merkmalen des Patentanspruchs 1.This object is achieved by a calendar mechanism having the features of
Es liegt also eine Kalendermechanik zur mechanischen Realisierung eines ewigen Kalenders unter Berücksichtigung von Schaltjahren, vorzugsweise in einer Taschen- oder Armbanduhr, vor. Diese weist auf:
- ein Monatsrad, welches vorzugsweise mechanisch mit einer Anzeige des Tages eines Monats gekoppelt ist,
- einen Schalthebel mit einem Abtastelement, wobei bei Betätigung des Schalthebels das Abtastelement bis zu einem Anschlag gegen ein Steuersystem gedrückt wird, wobei die Tiefe des Anschlages bestimmt, ob der Schalthebel das Monatsrad um einen oder mehrere Tage weiterschaltet,
- wobei das Steuersystem ein bezüglich des Monatsrades beweglich angeordnetes Steuerelement aufweist, und
- die Bewegung des Monatsrades und die Bewegung des Steuerelements mechanisch miteinander gekoppelt sind, wodurch
- jeweils zu Ende eines Monats ein Bereich des Steuerelements durch das Abtastelement abgetastet wird und damit das Steuerelement das Weiterschalten des Monatsrades um einen oder mehrere Tage bestimmt,
- und eine Untersetzung der Bewegung des Monatsrades auf die Bewegung des Steuerelementes jeweils einen Abschnitt des Steuerelements zur Abtastung bringt, welcher das Weiterschalten für den entsprechenden Monat hervorruft.
- a month wheel , which is preferably mechanically linked to an indication of the day of a month,
- a shift lever with a sensing element, wherein upon actuation of the shift lever, the sensing element is pressed to a stop against a control system , wherein the depth of the stop determines whether the shift lever advances the month wheel one or more days,
- wherein the control system has a with respect to the month wheel movably arranged control , and
- the movement of the month wheel and the movement of the control element are mechanically coupled together, thereby
- at the end of a month, an area of the control is scanned by the scanning element and thus the control determines the indexing of the month wheel by one or more days,
- and a reduction of the movement of the month wheel to the movement of the control each brings a portion of the control to the scan, which causes the indexing for the corresponding month.
In einer Ausführungsform führen das Monatsrad und das Steuerelement kontinuierliche Drehbewegungen aus. Alternativ sind aber auch rückspringende Ausführungsformen und/oder stufenweises Weiterschalten bei der Untersetzung möglich. Typischerweise führt das Monatsrad in einem Monat eine Umdrehung durch und das Steuerelement in einem Jahr oder in vier Jahren eine Umdrehung. Das Steuerelement kann mehrere Teile aufweisen, deren Konfiguration sich alle vier Jahre wiederholt.In one embodiment, the month wheel and the control perform continuous rotational movements. Alternatively, however, also receding embodiments and / or stepwise indexing in the reduction are possible. Typically, the month wheel makes one revolution in one month and the control one revolution in one year or four years. The control may have several parts whose configuration repeats every four years.
Vorzugsweise ist das Steuerelement auf dem Monatsrad und mit dem Monatsrad mitbewegt angeordnet.Preferably, the control is arranged on the month wheel and moved with the month wheel.
In einer Ausführungsform weist das Steuersystem eine fest auf dem Monatsrad angeordnete Steuerkurve auf, welche beim Weiterschalten durch das Abtastelement jeweils eine Weiterschaltung um einen Tag steuert. Vorzugsweise weist die Steuerkurve eine Lücke auf, in welcher das Steuerelement vom Abtastelement abgetastet wird.In one embodiment, the control system has a control cam which is fixedly arranged on the month wheel and which, when being indexed by the sensing element, respectively controls an indexing by one day. Preferably, the control cam has a gap in which the control is scanned by the sensing element.
In einer Ausführungsform ist das Steuerelement eine runde Programmscheibe, welche auf dem Monatsrad drehend angeordnet ist und an ihrem Umfang Programmelemente, insbesondere Einschnitte in radialer Richtung aufweist, welche das Weiterschalten um einen, zwei, drei oder vier Tage codieren. Diese Codierung bewirkt beispielsweise, dass das Abtastelement beim Abtasten in die Einschnitte einfährt und entsprechend der Tiefe eines Einschnittes ein Haken des Abtastelements einen bis vier Zähne des Monatsrades überfährt.In one embodiment, the control is a round program disk which is rotatably mounted on the month wheel and at its periphery program elements, in particular cuts in the radial direction, which encode the indexing by one, two, three or four days. This coding causes, for example, that the scanning element moves into the incisions during scanning and, according to the depth of an incision, a hook of the scanning element moves over one to four teeth of the month wheel.
Jedem Kalendermonat kann ein Sektor des Umfangs der Programmscheibe zugeordnet werden. Wenn die Untersetzung zwischen Monatsrad und Programmscheibe derart ist, dass sich die Programmscheibe einmal im Jahr dreht, also eine Untersetzung um den Faktor 12, beträgt dieser Sektor 360°/12 = 30°. Wenn die Untersetzung zwischen Monatsrad und Programmscheibe derart ist, dass sich die Programmscheibe einmal in vier Jahren dreht, also eine Untersetzung um den Faktor 48, beträgt dieser Sektor 360°/48 = 7.5° (Der Durchmesser der Programmscheibe kann entsprechend angepasst werden, so dass die Umfangslänge eines Sektors jeweils zu den Fortschaltintervallen respektive Abtastintervallen des Monatsrades passt, und insbesondere so dass vermieden wird, dass Abtaststellen verschiedener Monate einander tangieren). In beiden Fällen befindet sich der aktuelle Sektor zum Monatsende im Bereich der Lücke der Steuerkurve und wird vom Abtastelement abgetastet. Damit kann die Umschaltung zu Ende jedes Monats für ein ganzes Jahr (beim Jahreskalender) respektive für vier Jahre (beim ewigen Kalender) durch Programmelemente oder Einschnitte am Umfang der Programmscheibe codiert werden. Für einen Monat mit 31 Tagen liegt kein Einschnitt vor, für Monate mit 30, 28 und 29 Tagen liegen entsprechend tiefere Einschnitte vor, welche ein Weiterschalten um 2, 3, und 4 Tage bewirken.Each calendar month can be assigned a sector of the scope of the program disk. If the reduction between monthly wheel and program disk is such that the program disk rotates once a year, ie a reduction by a factor of 12, this sector is 360 ° / 12 = 30 °. If the reduction between month wheel and program disk is such that the program disk rotates once in four years, ie a reduction by a factor of 48, this sector is 360 ° / 48 = 7.5 ° (The diameter of the program disk can be adjusted accordingly, so that the circumferential length of a sector matches the progression intervals or sampling intervals of the month wheel, respectively, and in particular so as to avoid that sampling points of different months affect each other). In both cases, the current sector is at the end of the month in the area of the gap of the control cam and is scanned by the sensing element. Thus, the switching can be coded at the end of each month for a whole year (for the annual calendar) or for four years (for the perpetual calendar) by program elements or cuts in the size of the program disk. There is no incision for a month with 31 days, for months with 30, 28 and 29 days there are correspondingly deeper incisions, which cause a progression of 2, 3, and 4 days.
Dreht sich die Programmscheibe einmal pro Jahr, so ist ohne weitere Elemente ein Jahreskalender realisiert.If the program disk rotates once a year, an annual calendar is realized without any further elements.
In einer weitere Ausführungsform dreht sich die Programmscheibe einmal pro Jahr und liegt ein weiteres Steuerelement vor, welches alle vier Jahre bei der Abtastung des zum 28. Februar korrespondierenden Einschnitts der Programmscheibe die Abtast-Bewegung des Abtastelementes begrenzt, wodurch das Abtastelement nur um einen Tag weiterschaltet. Für den nachfolgenden Tag (29. Februar) ist in diesem Sektor der Programmscheibe ein weiterer Einschnitt angeordnet, welcher ein Weiterschalten um drei Tage auslöst. Dieser weitere Einschnitt wird in normalen Jahren übersprungen, weil bereits am 28. Februar eine Fortschaltung um 4 Tage ausgelöst wird. Die Sektoren für die übrigen Monate weisen nur für die Monate mit 30 Tagen einen Einschnitt auf.In another embodiment, the program disk rotates once a year and has another control which, every four years when scanning the program disk cut corresponding to February 28, limits the scanning motion of the scanning element, thereby advancing the scanning element by only one day , For the following day (29th of February) there is another incision in this sector of the program disk, which triggers a three-day switch. This further incision will be skipped in normal years because it will trigger a 4-day advance on February 28th. Sectors for the remaining months have a cut only for the 30-day months.
Das weitere Steuerelement kann auf der Programmscheibe und mit der Programmscheibe drehend angeordnet sein, wobei seine Drehung bezüglich der Programmscheibe untersetzt ist, insbesondere um den Faktor vier. Die Untersetzung kann kontinuierlich, mittels Zahnrädern, sein. Alternativ kann das weitere Steuerelement mittels eines vierarmigen Sternrades, vorzugsweise zu einer vom Februar entfernten Jahreszeit, schrittartig weitergeschaltet werden. Alternativ kann es mit einem vierarmigen Malteserkreuzgetriebe weitergeschaltet werden.The further control element can be arranged to rotate on the program disk and with the program disk, whereby its rotation with respect to the program disk is stifled, in particular by a factor of four. The reduction can be continuous, by means of gears. Alternatively, the further control element can be incrementally indexed by means of a four-armed star wheel, preferably at a season removed from February. Alternatively, it can be indexed with a four-armed Maltese cross gear.
Gemäss weiteren Ausführungsformen sind die Programmelemente in verschiedenen Ebenen der Programmscheibe angeordnet, und ist durch den aktuellen Tag eines Monats bestimmt, welche Ebene durch das Abtastelement abgetastet wird. Der aktuelle Tag entspricht der Drehstellung des Monatsrades bezüglich der "festen Welt", typischerweise einer Uhrenplatine, und damit auch bezüglich der Lagerung des Abtaststiftes. Damit kann vermieden werden, dass auch bei grösseren Toleranzen der Teile ein Einschnitt, der z.B. zum 30. eines Monats gehört, aufgrund der relativen Verdrehung des Programmscheibe bezüglich des Monatsrades am 28. oder 29. eines anderen Monates vom Abtastelement getroffen wird.According to further embodiments, the program elements are arranged in different levels of the program disk, and is determined by the current day of a month, which plane is scanned by the scanning element. The current day corresponds to the rotational position of the month wheel with respect to the "fixed world", typically a clock board, and thus also with respect to the storage of the Abtaststiftes. This can be avoided that even with larger tolerances of parts an incision, for example, belongs to the 30th of a month, due to the relative rotation of the program disk with respect to the month wheel on the 28th or 29th of another month is met by the sensing element.
Grundsätzlich können den drei Tagen (28. bis 30.), in denen die Programmscheibe abgetastet wird, jeweils einer eigenen Ebene zugeordnet werden. Praktisch ist zur Vermeidung von Überschneidungen aber ausreichend, wenn alle Programmelemente des 28. und 29. - vier in vier Jahren - in einer ersten Ebene und alle Programmelemente des 30. - sechzehn in vier Jahren - in einer zweiten Ebene angeordnet sind.In principle, the three days (28th to 30th), in which the program disc is scanned, can each be assigned to a separate level. In practice, however, it is sufficient to avoid overlaps if all program elements of the 28th and 29th - four in four years - are arranged in a first level and all program elements of the 30th - sixteen in four years - in a second level.
Die Programmscheibe mit ihren beiden Ebenen kann mit dem gleichen Durchmesser und koaxial zur Steuerkurve angeordnet sein. Die Steuerkurve entspricht dabei einer dritten Ebene, parallel zu den ersten beiden Ebenen, für alle Tage ausser dem 28. bis 30. Tag, wo eine Lücke vorliegt. Diese dritte Ebene begrenzt die Bewegung des Abtastelementes an diesen übrigen Tagen auf die Weiterschaltung um einen Tag, nur zwischen am 28. bis 30. lässt die Lücke eine weiter gehende Abtastung zu. Bei dieser wird am 28. und 29. immer die erste Ebene abgetastet, wobei in 11 von 12 Monaten jeweils nur um einen Tag weitergeschaltet wird. Am 30. wird immer die zweite Ebene abgetastet. Die Einschnitte für die Monate mit 30 Tagen führen nicht zu Konflikten mit den Abtastungen für den 28. und 29. in anderen Monaten, weil sie in einer anderen Ebene sind.The program disc with its two planes can be arranged with the same diameter and coaxial with the control cam. The control curve corresponds to a third level, parallel to the first two levels, for all days except the 28th to 30th day, where there is a gap. This third level limits the movement of the sample element on these remaining days to the one-day handoff, only between the 28th to 30th the gap allows for a wider sweep. In this case, the first level is always scanned on the 28th and 29th, with 11 of 12 months being incremented by one day only. On the 30th, the second level is always scanned. The cuts for the 30-day months do not conflict with the scans for the 28th and 29th in other months because they are in a different level.
Dabei kann die entsprechend dem Tag gesteuerte, selektive Abtastung der ersten und zweiten Ebene (oder auch mehrere Ebenen) in verschiedener Weise realisiert sein:
- • Der Abtaststift kann biegbar oder schwenkbar sein durch eine am Monatsrad angeordnete Auslenkung in die eine oder andere Ebene der Programmscheibe geführt werden.
- • Ein Stück der Programmscheibe kann durch eine feststehende Steuerkurve verschoben werden, um je nach Tag (28./29./30.) unter dem Abtaststift zu liegen, wobei je nach Tag verschieden tiefe Einschnitte vorliegen.
- • Es können drei Zwischentaster zwischen Abtaststift und Programmscheibe vorliegen, welche am 28. und 29. die Abtastbewegung auf die erste Ebene und am 30. auf die zweite Ebene lenken. Die drei Zwischentaster laufen mit dem Monatsrad mit, drücken bei Betätigung gegen die jeweilige Ebene der Programmscheibe und werden jeweils, an den unterschiedlichen Tagen, durch den eigentlichen Abtaststift betätigt.
- • Es kann die Programmierscheibe als ganzes parallel zu ihrer Drehachse verschoben werden, gesteuert durch eine Kulisse oder Scheiben-Steuerkurve, welche bezüglich der festen Welt fix ist. Diese kann z.B.
auf den 28. hin die Programmscheibe in eine erste Stellung schieben, in welcher die Ebene fürden 28.und 29. abgetastet wird. In dieser Stellung wird für jeden Monat ausser Februar an diesen beiden Tagen um jeweils nur einen Tag weitergeschaltet.Zwischen dem 29.und 30. wird die Programmscheibe in eine zweite Stellung geschoben, in welcher die Ebene fürden 30. abgetastet wird. Die Scheibensteuerkurve kann in beide Richtungen aktiv die Programmscheibe verschieben, also zwangsweise führen, oder nur in eine Richtung, entgegen einer Kraft einer Rückstellfeder. Letzteres erlaubt, dass dieProgrammscheibe zwischen dem 29.und 30. relativ rasch in die neue Position schnappt. Bei der Realisierung mit Zwangsführung und ohne Feder ist vorteilhaft, die Programmscheibe koaxial zum Monatsrad anzuordnen (wobei sie zumindest annähernd denselben Durchmesser wie die Steuerkurve aufweisen kann). Dann dreht sich die Programmscheibe bezüglich der festen Welt um eine stationäre Achse, und eine kreisförmige Kulisse an der Programmscheibe kann mit einem Nocken an der festen Welt (oder umgekehrt) verschoben werden.
- • The sensing pin can be bendable or swiveled through a deflection located on the month wheel in one or the other plane of the program disc.
- • A piece of program disk can be moved through a fixed cam to lie below the pickup pin, depending on the day (28/29/30), with different depths depending on the day.
- • There may be three intermediate buttons between the stylus and the program disk, which on the 28th and 29th move the scanning movement to the first level and to the 30th to the second level. The three intermediate buttons run with the month wheel, press when pressed against the respective level of Program disc and are each, on different days, actuated by the actual sensing pin.
- • The programming disk can be moved as a whole parallel to its axis of rotation, controlled by a link or disk cam, which is fixed with respect to the fixed world. For example, on the 28th, this can move the program disk to a first position in which the plane for the 28th and 29th is scanned. In this position, for each month except February, on these two days, only one day will be incremented. Between the 29th and 30th, the program disk is slid to a second position in which the plane for the 30th is scanned. The disk control cam can actively move the program disk in both directions, ie force it, or only in one direction, against a force of a return spring. The latter allows the program disk to snap relatively quickly to the new position between the 29th and 30th. In the implementation with positive guidance and without spring is advantageous to arrange the program disc coaxial with the month wheel (where they may have at least approximately the same diameter as the control cam). Then, with respect to the fixed world, the program disk rotates about a stationary axis, and a circular backdrop on the program disk can be shifted with a cam on the fixed world (or vice versa).
Die Programmscheibe kann zum Antrieb eine Innenverzahnung aufweisen, oder ein koaxiales Zahnrad mit kleinerem Durchmesser.The program disc may have an internal toothing for driving, or a coaxial gear with a smaller diameter.
Zur Einstellung des Datums: Die Mechanik kann ohne weiteres mit einem zusätzlichen Fortschaltelement ausgerüstet werden, welches beispielsweise manuell mit einem Drücker betätigbar ist. Alternativ kann auch der Schalthebel selber mit einem Drücker betätigbar sein, zusätzlich zur Betätigbarkeit durch die Schaltfeder. In einer weiteren Ausführungsform ist der Schalthebel mit einem Betätigungselement betätigbar, welches einerseits den Haken radial abhebt und ein schrittweises oder kontinuierliches Drehen des Monatsrades in beide Richtungen erlaubt. Dazu kann eine Stellvorrichtung vorgesehen sein, welche den Schalthebel vom Monatsrad abhebt, das Abtastelement vom Steuersystem abhebt und einen Stellantrieb mit der Kalendermechanik, insbesondere dem Monatsrad, in Eingriff bringt und dadurch ein manuelles Einstellen der Kalendermechanik ermöglicht. Dabei kann zusätzlich eine Blockiervorrichtung vorliegen, welche die Betätigung der Stellvorrichtung blockiert, wenn sich die Kalendermechanik in einem vorgegebenen Zustand befindet, insbesondere in einem Zustand, in welchem das Abtastelement gegen das Steuersystem gedrückt ist.To set the date: The mechanism can be easily equipped with an additional indexing element, which, for example, manually operated with a pusher. Alternatively, the shift lever itself can be actuated with a pusher, in addition to the operability by the switching spring. In a further embodiment, the shift lever can be actuated with an actuating element, which on the one hand lifts the hook radially and allows a stepwise or continuous turning of the month wheel in both directions. For this purpose, an adjusting device may be provided which lifts the gear lever from the month wheel, the scanning picks up the control system and an actuator with the calendar mechanism, in particular the month wheel, engages, thereby enabling manual adjustment of the calendar mechanism. In this case, there may additionally be a blocking device which blocks the actuation of the adjusting device when the calendar mechanism is in a predetermined state, in particular in a state in which the scanning element is pressed against the control system.
Im folgenden wird der Erfindungsgegenstand anhand von bevorzugten Ausfiihrungsbeispielen, welche in den beiliegenden Zeichnungen dargestellt sind, näher erläutert. Es zeigen jeweils schematisch:
Figur 1- eine Kalenderschaltung;
Figur 2- die Kalenderschaltung in einer anderen Stellung;
Figur 3- eine Programmscheibe der Kalenderschaltung;
Figur 4- eine beispielhafte Anzeige zur Kalenderschaltung;
- Figur 5a-c
- eine Variante der Kalenderschaltung;
- Figur 6a-b
- eine weitere Variante der Kalenderschaltung;
Figur 7- einen Querschnitt durch einen Variante zum Antrieb einzelner Elemente der Kalenderschaltung:
Figur 8- Elemente einer Variante der Kalenderschaltung;
- Figur 9
- die Funktion einer Stelleinrichtung;
Figur 10- eine Variante einer Programmscheibe der Kalenderschaltung; und
- Figuren 11-12
- eine Abtastung dieser Programmscheibe zu verschiedenen Daten.
- FIG. 1
- a calendar circuit;
- FIG. 2
- the calendar circuit in a different position;
- FIG. 3
- a program disk of the calendar circuit;
- FIG. 4
- an exemplary display for calendar switching;
- Figure 5a-c
- a variant of the calendar circuit;
- Figure 6a-b
- another variant of the calendar circuit;
- FIG. 7
- a cross section through a variant for driving individual elements of the calendar circuit:
- FIG. 8
- Elements of a variant of the calendar circuit;
- FIG. 9
- the function of a setting device;
- FIG. 10
- a variant of a program disk of the calendar circuit; and
- Figures 11-12
- a scan of this program disk to different data.
Das Monatsrad 1 wird alle 24 Stunden um einen Zahn weitergeschaltet, am Monatsende um einen, zwei, drei oder vier Zähne. Die Weiterschaltung geschieht durch einen vorzugsweise federnden Schalthebel 6, welcher durch einen Hebel 8 angetrieben diese Anzahl von Zähnen umfährt und dann zurückschnellt. Die Anzahl von Zähnen ist durch ein Abtastelement in Form eines Abtaststiftes 7 bestimmt, welches gegen die Steuerkurve 5 oder in Einschnitte 13 der Programmscheibe 4 einfährt: Je nach Tiefe des Einschnittes wird eine entsprechende Anzahl Zähne umfahren. Der Antrieb des Hebels 8 geschieht über einen Federhebel 11, der wiederum durch eine Schneckenscheibe 12 angetrieben ist, welches sich einmal in 24 Stunden dreht. Dieses drückt den Federhebel 11 und dadurch den Schalthebel 6 und einen Haken 9 am Ende des Schalthebels 6 langsam (im Verlauf eines Tages) um die Zähne des Monatsrades 1 und wird dabei gegen eine Konterfeder 10 vorgespannt, bis die Bewegung des Schalthebels 6 durch den Abtaststift 7 gestoppt wird, wonach die weitere Bewegung durch die Elastizität des Federhebels 11 aufgenommen wird. Einmal in 24 h, sinnvollerweise um Mitternacht, fällt der Federhebel 11 in die Unstetigkeit der Schneckenscheibe 12 und gibt den Schalthebel 6 frei, welcher durch die Konterfeder 10 ruckartig zurück bewegt wird und dabei mit dem Haken 9 das Monatsrad 1 entsprechend der Anzahl der auf dem Hinweg umfahrenen Zähne weiterschaltet.
An den meisten Tagen, vorzugsweise an 27 Tagen, des Monats tastet der Abtaststift 7 die Steuerkurve 5 ab und schaltet deshalb um einen Tag respektive um einen Zahn des Monatsrades 1 weiter. Am Monatsende tastet er jedoch die Programmscheibe 4 ab, welche mit ihrem Umfang in eine Lücke 5' der Steuerkurve 5 ragt.On most days, preferably on 27 days of the month, the
Beim Fortschalten um einen Tag dreht sich das Monatsrad 1 um 360°/31=11.61° weiter. Die Programmscheibe 4 dreht sich (bezüglich des Monatsrades) lediglich um 0.246° pro Tag, weshalb es schwierig ist, von Tag zu Tag unterschiedliche Information von der Scheibe abzulesen. Indem aber die Programmscheibe 4 mit dem Monatsrad 1 mitgedreht wird, ist der Winkel-Unterschied von Tag zu Tag am Monatsende viel grösser und die Einschnitte der verschiedenen Tage können problemlos separat voneinander abgetastet werden.When shifting by one day, the
Einerseits kann diese Variante ohne weitere Elemente betrieben werden und realisiert so eine Kalenderschaltung, welche in alle Monaten mit Ausnahme von Schaltjahren korrekt schaltet ("Jahreskalender"). Andererseits kann, wie in der
Das weitere Steuerelement 14 weist in dieser Ausführungsform ein Sternrad auf, welches durch eine weitere Nocke (nicht gezeichnet) am Monatsrad 1 einmal im Jahr betätigt wird, wenn die Programmscheibe 4 ihre jährliche Umdrehung bezüglich des Monatsrades 1 vollführt. Dies geschieht in ausreichender Entfernung vom Monat Februar. Eine Sicherungsfeder 19 hält das weitere Steuerelement 14, wenn es nicht durch die weitere Nocke gedreht wird, in einer definierten Position.The
In den
Um zu verhindern, dass der Mechanismus während eines Abtastvorganges verstellt wird, kann eine Blockierschaltung vorliegen, welche die Betätigung der Stelleinrichtung während entsprechenden Tageszeiten blockiert. Beispielsweise kann die Blockiervorrichtung dazu die Schneckenscheibe 12 abtasten, oder eine mit der Schneckenscheibe verbundene Steuerscheibe (nicht gezeichnet) welche sich ebenfalls in 24 Stunden einmal dreht.In order to prevent the mechanism from being displaced during a scanning operation, there may be a blocking circuit which blocks the actuation of the actuating device during corresponding times of the day. For example, the blocking device to scan the
In der gezeigten Variante ist das Steuersystem dazu ausgelegt, dass an allen Tagen eines Monats mit Ausnahme des 28., 29. und 30. Tages die Steuerkurve 5 die Abtastung begrenzt, am 28. und 29. die erste Ebene durch den Abtaststift 7 abgetastet wird, und am 30. Tag die zweite Ebene. Dazu wird mit der Scheibensteuerkurve die Programmscheibe 4a, 4b am 30. Tag in die zweite Stellung gebracht und ist am 28. und 29. in der ersten Stellung. Für die Verschiebung von der zweiten in die erste Stellung steht die ganze Zeit vom 1. bis zum 28. zur Verfügung, entsprechend mehreren einzelnen Fortschaltbewegungen, da in dieser Zeit die Steuerkurve massgebend ist und die Programmscheibe nicht abgetastet wird. Die Verschiebung von der ersten in die zweite Stellung muss zwischen dem 29. und dem 30. Tag geschehen.In the variant shown, the control system is designed so that on all days of a month with the exception of the 28th, 29th and 30th day the
Es liegen in der ersten Scheibe 4a vier Einschnitte vor, drei mal für den 28. und einmal für den 29. Februar (zwei dieser Einschnitte sind in der
Die Programmscheibe 4a, 4b weist an der Umfangsfläche, die durch den Abtaststift abgetastet wird, der Einfachheit halber denselben Durchmesser auf wie die Steuerkurve 5, sie kann aber auch einen kleineren Durchmesser aufweisen und exzentrisch auf dem Monatsrad 1 gelagert sein, analog zu den Programmscheiben 4 der anderen Ausführungsformen. Im letzten Fall geschieht die axiale Verschiebung der beiden Ebenen 4a, 4b mit Scheibensteuerkurve und Nocke bezüglich des Monatsrades 1.The
Die Anordnung der beiden Ebenen 4a, 4b der Programmscheibe kann auch vertauscht sein, also mit der zweiten Ebene mit der Codierung für den 30. der Steuerkurve 5 benachbart. Dann die Scheibensteuerkurve oder allgemein die Scheibensteuerung dazu ausgebildet, dass die Programmscheibe 4a, 4b am 28. und 29. in der Stellung näher bei der Steuerkurve und am 30. in der entfernten Stellung ist.The arrangement of the two
Claims (13)
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CH00382/11A CH704611B1 (en) | 2011-03-07 | 2011-03-07 | Escapement and oscillator device for a mechanical watch. |
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EP2498142A2 true EP2498142A2 (en) | 2012-09-12 |
Family
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EP12405024A Withdrawn EP2498141A2 (en) | 2011-03-07 | 2012-03-07 | Escapement for mechanical timepiece |
EP12405025A Withdrawn EP2498142A2 (en) | 2011-03-07 | 2012-03-07 | Calendar mechanism for mechanical timepiece |
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EP12405024A Withdrawn EP2498141A2 (en) | 2011-03-07 | 2012-03-07 | Escapement for mechanical timepiece |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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DE102016125650A1 (en) * | 2016-12-23 | 2018-06-28 | Lange Uhren Gmbh | Mechanical annual calendar |
Families Citing this family (2)
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EP2790067A1 (en) * | 2013-04-12 | 2014-10-15 | Montres Breguet SA | Escapement system for a balance-hairspring resonator |
EP3147725B1 (en) * | 2015-09-28 | 2018-04-04 | Nivarox-FAR S.A. | Oscillator with rotary detent |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH680640A5 (en) | 1989-10-02 | 1992-10-15 | Intercollection Dev S A | Office chair with retractable arm rests |
CH696861A5 (en) | 2002-04-02 | 2007-12-31 | Nardin Ulysse Sa | Device program wheel for perpetual calendar mechanism, and a timepiece including such a mechanism. |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6877893B2 (en) | 1998-07-14 | 2005-04-12 | Elmar Mock | Timepiece with mechanical regulation |
EP1097408B1 (en) | 1998-07-14 | 2005-05-04 | Watch-U-License AG | Timepiece with mechanical regulation |
WO2001059529A1 (en) | 2000-02-08 | 2001-08-16 | Wacht-U-License Ag | Mechanically regulated time indicator |
-
2011
- 2011-03-07 CH CH00382/11A patent/CH704611B1/en unknown
-
2012
- 2012-03-07 EP EP12405024A patent/EP2498141A2/en not_active Withdrawn
- 2012-03-07 EP EP12405025A patent/EP2498142A2/en not_active Withdrawn
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH680640A5 (en) | 1989-10-02 | 1992-10-15 | Intercollection Dev S A | Office chair with retractable arm rests |
CH696861A5 (en) | 2002-04-02 | 2007-12-31 | Nardin Ulysse Sa | Device program wheel for perpetual calendar mechanism, and a timepiece including such a mechanism. |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102016125650A1 (en) * | 2016-12-23 | 2018-06-28 | Lange Uhren Gmbh | Mechanical annual calendar |
DE102016125650B4 (en) | 2016-12-23 | 2018-10-31 | Lange Uhren Gmbh | Mechanical annual calendar |
Also Published As
Publication number | Publication date |
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CH704611A2 (en) | 2012-09-14 |
CH704611B1 (en) | 2020-02-28 |
EP2498141A2 (en) | 2012-09-12 |
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