EP1351105B1 - Uhr mit ewigem Kalender - Google Patents

Uhr mit ewigem Kalender Download PDF

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Publication number
EP1351105B1
EP1351105B1 EP02076291A EP02076291A EP1351105B1 EP 1351105 B1 EP1351105 B1 EP 1351105B1 EP 02076291 A EP02076291 A EP 02076291A EP 02076291 A EP02076291 A EP 02076291A EP 1351105 B1 EP1351105 B1 EP 1351105B1
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EP
European Patent Office
Prior art keywords
date
month
disc
graduation
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.)
Expired - Lifetime
Application number
EP02076291A
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English (en)
French (fr)
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EP1351105A1 (de
Inventor
Ludwig Oechslin
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.)
Manufacture et Fabrique de Montres et Chronometres Ulysse Nardin Le Locle SA
Original Assignee
Manufacture et Fabrique de Montres et Chronometres Ulysse Nardin Le Locle SA
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Application filed by Manufacture et Fabrique de Montres et Chronometres Ulysse Nardin Le Locle SA filed Critical Manufacture et Fabrique de Montres et Chronometres Ulysse Nardin Le Locle SA
Priority to DE60230113T priority Critical patent/DE60230113D1/de
Priority to EP02076291A priority patent/EP1351105B1/de
Priority to AT02076291T priority patent/ATE416402T1/de
Priority to CH00587/03A priority patent/CH696947A5/fr
Publication of EP1351105A1 publication Critical patent/EP1351105A1/de
Application granted granted Critical
Publication of EP1351105B1 publication Critical patent/EP1351105B1/de
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Classifications

    • G—PHYSICS
    • G04—HOROLOGY
    • G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
    • G04B19/00—Indicating the time by visual means
    • G04B19/24—Clocks or watches with date or week-day indicators, i.e. calendar clocks or watches; Clockwork calendars
    • G04B19/241—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
    • 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
    • G04B19/25306—Independent date indicating devices activated by hand or by clockwork, e.g. calendar watches
    • G04B19/25313—Independent date indicating devices activated by hand or by clockwork, e.g. calendar watches driven or released by a steady movement
    • G04B19/2532—Independent date indicating devices activated by hand or by clockwork, e.g. calendar watches driven or released by a steady movement automatically corrected at the end of mounths having less than 31 days

Definitions

  • the present invention relates to a timepiece equipped with a clockwork movement and a calendar display comprising: a dial having a fixed graduation in days of whole weeks which extends over the entire circumference of the dial , date indicator means, driven in rotation in steps and having at least one date scale in correspondence with the graduation of the days, and a movable calendar index rotated by the watch movement against the graduations of the days and dates.
  • the patent FR884544 discloses a calendar watch for displaying with a single hand the day of the week and the date.
  • the patent application EP 285 881 describes a perpetual calendar electronic wristwatch of this kind, in which central hour, minute and second hands are driven by a first motor to indicate the time, a fourth central hand is driven from that motor to 1/35 of a turn per day to indicate the date, while another off-center hand is driven by a second motor to indicate the month.
  • the date is indicated by the fourth hand on two concentric graduations, namely a fixed graduation of days which is divided into thirty-five equal sectors bearing the names of the days of five consecutive weeks, and a graduation of the dates carried by a rotating disk and divided equally into thirty-five equal sectors of which thirty-one consecutive fields bear the dates from 1 to 31, the other four sectors being virgin.
  • the date disc is moved by a third motor to place the next month's calendars in correspondence of the graduation of the days.
  • the user can see at any time the complete calendar of the current month, while the fourth hand indicates the date and the day on the graduations matched.
  • a disadvantage of this way of displaying the date is that, until the evening of the last day of the month, the user can not see the calendar of the beginning of the following month.
  • the design of a mechanism causing such a date display would be very difficult.
  • a mechanical calendar has been proposed in which the seven calendars of a whole week are visible in a window beside which are inscribed the names of the days of the week.
  • the mechanism comprises two concentric date discs each having a semicircular sector which carries the dates of a first part or a second part of the month, the ends of these sectors overlapping over one, two or three days, alternatively to place the next month's date 1 after the last date of the previous month, then to restore the continuous continuation of the calendars around the middle of the month.
  • the rotation of the two date discs is operated once a week by means of a manual control or a clockwork movement.
  • the relative movements of one of these disks relative to the other are determined by a cam mechanism carried by one of the disks and representing the different lengths of the months.
  • This mechanical calendar has the disadvantage of not indicating the current date because it can not be combined with a rotary indicator such as a needle driven by a clockwork movement.
  • the observer must therefore know a priori what is the day of the week to be able to read the date or vice versa. In addition, he can only read the calendar for one week at a time.
  • Another disadvantage is that when the week extends to the end of a month and the beginning of the following month, the observer does not know whether the name of the month displayed in the window provided for this purpose corresponds to the beginning or the weekend.
  • a primary object of the present invention is to overcome the aforementioned drawbacks by a date display mode allowing a global view of the calendar not only on the current week, but also on one or more weeks to come, whatever the number of days in the current month.
  • the calendar will be of the perpetual type, that is to say taking into account leap years.
  • An additional object of the invention is to allow the indication of the date by means of a single moving index indicating not only the day and the date, but also the month and possibly the year.
  • Another object of the invention is to design a calendar mechanism capable of causing such a calendar display from the watch movement.
  • the calendar display always shows a correspondence between the calendars and the days over a period of several weeks that includes the current week and one or more weeks that follow, which helps the user to choose dates in this calendar. period, for example to schedule appointments.
  • this period spans the entire month in progress.
  • the second part of the month which can start at any date chosen by the manufacturer, preferably between 15 and 20, the first date disk is moved while the second disk remains stationary, so that the date of the month 1 next month takes place just after the last day of the current month. Consequently, the correspondence between dates and days is established not only for the end of the current month, but also for the first part of the following month.
  • the mobile calendar index is driven to move forward one day in 24 hours next to the fixed graduation of days. It indicates at the same time the day and the date on the respective graduations matched one of the other.
  • the graduation of the days comprises 28 days on the turn of the dial, so that N is always positive and that the movements of the date discs take place in the increasing direction of the graduations of the days and the calendars.
  • the calendar display always shows a correspondence between the calendars and the days over a period of four weeks.
  • the mobile calendar index is driven in this case so as to take a turn in 28 days next to the fixed graduation of the days.
  • the graduation of the days comprises 35 days on the turn of the dial, so that N is always negative and that the movements of the date discs are made in the decreasing direction of the graduations of the days and the calendars.
  • the calendar display always shows a correspondence between the calendars and the days over a period of more than four weeks.
  • the mobile calendar index is driven in this case so as to take a turn in 35 days next to the fixed graduation of the days.
  • the calendar display may be advantageously completed by a disc of the months, divided into twelve sectors, each bearing the name of a month and concentrically arranged with date discs, next to calendar mobile index, this record of the months being driven so as to perform, relative to the moving index, a relative rotation of a turn in one year.
  • This relative rotation is preferably in the opposite direction to that of the rotation of the index, so that the increasing order of months is arranged in the same direction as the increasing order of days and dates.
  • the perpetual type calendar display may further include a year disk, preferably divided into four sectors corresponding to the four years of a leap year cycle, this disk being driven in continuous relative rotation with respect to the index of calendar so as to perform a four-year turn against this index.
  • the display members of the watch comprise conventional analog time indication members, comprising a hour hand 41 and a minute hand 42 which turn in front of a dial 43 bearing for example twelve fixed hourly markers 44.
  • needles 41 and 42 are conventionally driven by a clockwork movement to rotate about the central axis 45 of the watch.
  • a calendar index 46 is driven by the watch movement of the watch so as to perform a complete revolution around the axis 45 in 28 days, preferably clockwise, with respect to a graduation of the days 47 which is fixed on the dial 43.
  • the graduation 47 which extends over the entire round of the dial, is divided into twenty-eight equal sectors bearing the names of the days of four consecutive weeks.
  • the index 46 is carried by an annular disc 48 which can be driven either continuously or by 1/28 turn to place the index 46 always in front of the middle of a sector of the fixed graduation 47.
  • the calendars 1 to 31 are distributed on respective sectors of two date discs 51 and 52, next to the graduation of the days 47. Each sector carrying a date extends over 1/28 of a turn, so that it can to be placed in exact correspondence of a sector of the graduation of days 47.
  • the first date disc 51 carries a graduation 53 having the dates of a first part of the month, for example in this case the dates of 1 to 15 on fifteen consecutive sectors.
  • the second date disc 52 carries a graduation 54 comprising the calendars of the second part of the month, that is to say in the present case from 16 to 31 out of sixteen consecutive sectors.
  • the second disc 52 is located behind the first disc 51 and has a larger diameter, so that its graduation 54, disposed on a circular arc of greater radius than the graduation 53, is always visible along the periphery of the first 51 and that three sectors of the respective ends of the two graduations 53 and 54 can be juxtaposed, as seen in FIG. figure 1 for the dates 13 to 18.
  • the index 46 facing one of the sectors of the graduation 47 indicates at the same time the date corresponding to this sector. If the index was in a zone where the two graduations 53 and 54 overlap (a circumstance which does not occur in the examples described here), the observer should by convention read the nearest date of the index, c that is to say on the first graduation 53.
  • the perpetual calendar display comprises an annular disk of the months 56, bearing a graduation of the months 57 composed of twelve sectors whose respective angles are proportional to the length of the months that they represent.
  • the disk 56 is driven by the clockwork movement so as to follow the disk 48 and its index finger 46, but with relative retrograde rotation to delay one revolution per year.
  • Inside the disc 56 is an annular disc of the years 58 bearing a graduation 59 composed of four equal sectors, corresponding to the Julian cycle of four years, the last of which is leap and indicated by the Roman numeral IV.
  • the 58-year-old disc is driven by the watch movement so as to follow the disc 48 carrying the index finger 46, but with relative retrograde rotation to delay by one revolution in four years relative to the disc 48.
  • the index 46 analogically indicates the current month on the graduation 57 and the number of the year in the quadrennial cycle on the graduation 59, besides the day of the week and the date.
  • the date displayed is Wednesday, January 31, 2001, which is the first year of a quadrennial cycle.
  • Its date 16 is then in the wake of the date 15 of the first disc 51.
  • the display shows the correspondence between the days and the calendars over the entire month now in progress (February). The user notices this because the two date scales succeed one another in the middle of the month.
  • said predetermined date is the 5th of each month, but the manufacturer may choose another date if he deems it appropriate.
  • the figure 3 for example, represents the state of the calendar display on February 19, 2001.
  • the date of the 19 is chosen here for moving the first disk because it is the first that avoids the presence of the index 46 in front of the zone of overlap of the two date scales, for example in their position represented in figure 1 .
  • This state is represented in figure 6 .
  • the same pair of operations is carried out during the successive months, with the appropriate values of N.
  • the Figures 7 and 8 show the transition from February to March in a leap year.
  • Correspondence between days and dates is then established for the second part of February and the first part of March.
  • the part of the first disc 51 which is not covered by the graduation 53 could be removed and the portion bearing this graduation could cover the edge of the second disc 52, so that the two graduations 53 and 54 could be arranged on arcs of equal radius and that the ends of the first graduation 53 could be superimposed on those of the second graduation 54 instead of being juxtaposed.
  • the Figures 9 and 10 show a second embodiment which avoids this last disadvantage. Only here will be described what differs from the first embodiment.
  • the watch also includes the time display members 41 to 44 shown in FIG. figure 1 but these are omitted in the Figures 9 and 10 to clarify the drawing.
  • the fixed graduation 47 days is divided in this case into thirty-five equal sectors and thus covers five weeks.
  • the calendar index 46 is driven in the increasing direction of the graduation 47, in this case clockwise, so as to take a turn in 35 days.
  • the edge zone carrying the graduation 53 covers the second date disk 52 and is indented on the rest of the circumference to show the graduation 54 of the second disc, except that it will hide the dates 29, 30 and / or 31 at the end of the months of less than thirty-one days thanks to the relative movements of the disks 51 and 52.
  • the figure 9 represents the state of the calendar display on Thursday, April 19, 2001, so on the same date as in the figure 5 .
  • the position of the first disk 51 was such that its date 15 was next to the date 16, the two graduations 53 and 54 thus being connected to display the complete calendar of the month of February.
  • the display thus shows the correspondence between days and calendars for the second part of April and the first part of May.
  • the absolute value of the number N is equal to minus the number of days in the current month.
  • the calendar display is put in the position represented in figure 10 by a decline of the same number of five steps of the second disc 52 to bring the date 16 after the 15 and then show the correspondence between days and calendars throughout the month of May.
  • the first disc 51 will have to move back four steps to place its date 1 after 31, June 1, 2001 being a Friday.
  • a first difference is that the index 46 and the disc 48 carrying it in the first embodiment are replaced by a central hand which constitutes the calendar index 46. It also makes a turn in 28 days in the increasing direction of the graduation of the days 47. To be well distinguished from the hands of the hours 41 and minutes 42, the hand of the calendar index 46 may for example have a particular color.
  • a second difference is that the fixed graduation of days 47 is arranged around the annular date disks 51 and 52, that is to say directly on the dial of the watch. This avoids interposing a fixed element between the different disks of the calendar mechanism.
  • a third difference lies in the display of years.
  • the annular disk of the years 58 performs a revolution in ten years with respect to the index 46, its graduation 59 bearing the numbers of 0 to 9.
  • a central disc of the decades 60 is arranged concentrically at center of the calendar display and carries an index of decades 61 next to the graduation of the 59s.
  • the record of decades is driven so as to perform a lap in a hundred years compared to the record of the 58 years.
  • index 61 indicates on the graduation 59 the number of tens of the current year. This can be recalled to the user by means of an inscription such as "x 10" on the index of decades 61.
  • the calendar display members of the examples described above may be actuated by any appropriate means, at times determined by the mechanical, electromechanical or electronic movement of any timepiece, be it a watch or a clock. They can in particular be operated by one or more electric motors dedicated to them.
  • the figures 12 and 13 represent a calendar mechanism capable of operating the display represented in the figure 11 from the watch movement of the analog watch, more precisely from a central wheel hours 99 which is integral with the hour hand 42 and which obviously takes a turn in twelve hours.
  • the numbers written in italics represent the numbers of mobile teeth that will be described below.
  • the hour wheel 99 meshes with a wheel 101 having a pinion 102 which meshes with a wheel 103 having a pinion 104, which meshes with a wheel 105 integral with two other wheels 106 and 107.
  • the wheel 105 s meshes with a wheel 108 fixed on a barrel 109 which surrounds the axes of the needles 41, 42 and which carries the calendar index needle 46.
  • the index finger 46 rotates clockwise in exactly 28 days.
  • the wheel 107 meshes with a central wheel 110 secured to the disk of the years 58.
  • the wheel 106 meshes with a wheel 111 secured to the disc of the 60s.
  • the index of decades 61 takes a hundred years to go through the entire graduation of the 59s and indicates the decade on this graduation.
  • a driving wheel 112 which meshes with a wheel 113 integral with a wheel 114, which meshes with a central wheel 115 secured to the disc of the month 56.
  • the driving wheel 112 drives the date discs 51 and 52 by means of a perpetual calendar mechanism 120 shown in the right part of the drawings. figures 12 and 13 .
  • the wheel 112 meshes with a wheel 121 integral with a wheel 122 which meshes with a wheel 123, itself secured to a wheel 124 to a tooth 125.
  • the wheels 123 and 124 are driven by the barrel 109 at the rate of 12 rounds clockwise per average year, which is apparent from the following formula in which R i is given by formula (1): 2 ⁇ R i ⁇ 67 ⁇ 12 46 ⁇ 19 ⁇ 365 , 25 ⁇ 12 t / year
  • Two program wheels 126 and 127 are arranged on either side of the wheel 124, so that the single tooth 125 of the latter alternately drives the two program wheels counterclockwise, each once a month with a shift of half a month between one and the other. Note that this offset can be changed by slightly moving the wheel to a tooth relative to the program wheel pair.
  • Each program wheel 126 and 127 takes one complete turn per calendar year, regardless of the number of days this year.
  • the first program wheel 126 stepping a pinion 130 integral with a wheel 131 which meshes with an internal toothing 132 of the first date disk 51.
  • the second program wheel 127 drives step by step a pinion 134 integral with a wheel 135 which meshes with an internal toothing 136 of the second date disk 52.
  • the second program wheel 127 is omitted to clarify the drawing.
  • Table I shows more precisely the number of revolutions made by the main rotary mobiles of the calendar mechanism represented in FIG. figure 13 , in an average year of the Julian cycle.
  • Table I Reference number Designation Number of laps in 365.25 days 99 Hour wheel 730.5 46 Calendar Index 13.04464 56 Disc of the months 12.04467 58 Record of the years 12.94468 60 Record of decades 12.95468 124 One-tooth wheel 11.99988
  • the value indicated in the last line of Table I has a relative error of -10 -6 compared to the ideal value of 12, so that the moment when the one-tooth wheel 124 controls the advance of a date disc will be around 5 minutes a year, which is better than the accuracy of a good mechanical watch.
  • the timing mechanism were to be driven not by the watch movement, but by a clean electric motor, the wheels 101 to 104 could be removed and the motor could be controlled by the watch movement to drive once per day the mobile formed wheels 105 to 107.
  • the figures 14 and 16 represent the program wheel 126 in two situations which correspond respectively to the month of April of a normal year (to reach the state of the display according to the figure 5 ) and at the end of February of a leap year (display status according to the figure 7 ).
  • the program wheel 126 is a composite wheel that rotates on a fixed axis 139 provided with a fixed wheel 140 with six teeth. It comprises a first board 141 provided with an input toothing with twenty-four teeth 142 regularly spaced, a second board 143 provided with an output toothing 144 which will be described later, two eight-toothed planet wheels 145 and 146 which meshes with the fixed wheel 140, and a sliding movable member 147 provided with a single tooth 148 preceded by a hollow 149 itself preceded by a shoulder 150 in an arc.
  • the elements 140, 145, 146 and 147 which are drawn in bold lines to facilitate the reading of the drawing, are housed between the boards 141 and 143, in a recess 152 of the second board 143.
  • the side wall of this recess presents two shoulders 153 and 154 forming stops which define the two functional positions of the sliding element 147.
  • the planet wheels 145 and 146 are rotatable about respective pins 155 and 156 secured to the second board 143. With the fixed wheel 140, they constitute a control mechanism of the sliding element 147, as will be described later.
  • the exit gear 144 of the program wheel is a toothing with thirty-six modules, but has only twenty-four teeth 158 and twenty-nine recesses 159 adjacent to these teeth, the teeth and the recesses being arranged in groups which are separated by five gaps corresponding to months of less than 31 days. These gaps are occupied by respective shoulders 160 to 164 in an arc, respectively corresponding to the months of February, April, June, September and November.
  • the shoulders 161 to 164 correspond to the removal of two teeth and a hollow between them, for the months of 30 days, while the shoulder 160 corresponds to the removal of three teeth and two recesses therebetween, for a month of February of 29 days.
  • the shoulder 150 of the sliding element 147 extends the shoulder 160 of a module, so that these two shoulders combined correspond to the removal of four teeth and three recesses therebetween for a normal February of 28 days.
  • the height of the shoulders 150 and 160 to 164 is sufficient so that two successive teeth of the pinion 130 can slide while leaning against the shoulder , thus blocking the position of the pinion 130, of the wheel 131 ( figure 12 ) and the date disk 51 associated with the latter.
  • the successive positions of the date disk are indexed by the output teeth of the program wheel, without the need for a jumper spring. Indexing of this kind and its advantages are described in the patent Swiss no. 688,671 from the same applicant.
  • each shoulder 160 to 164 in front of the pinion 130 rotates it one step, so finally has the same effect as the passage of one of the teeth 158.
  • Each revolution of the wheel 124 with a tooth 125 produces a two-step advance of the entry gear 142 of the program wheel, that is to say a twelfth of a turn. Between these operations in advance, the program wheel is stopped by the circular periphery 176 of the wheel 124, which is supported by sliding against the head of the teeth 142. The program wheel, thus driven twelve times a year, makes a full tour per year. In the figures 14 and 16 , the circumference of the program wheel is subdivided into twelve sectors equal to 30 degrees, numbered by the Roman numerals I to XII and corresponding to the twelve months of the year.
  • the number of troughs 159 associated with each month determines the number of steps of the advance made this month by the pinion 130, the wheel 131 and the date disc 51. This number is 0, 1, 2 or 3 depending on whether the month corresponds to twenty-eight, twenty-nine, thirty or thirty-one days, as explained above.
  • the sliding element 147 and its control mechanism are intended to change the number of steps of the advance corresponding to the month of February, depending on whether this month is twenty-eight or twenty-nine days.
  • the element 147 In the position shown in figure 14 , which corresponds to a month of February of 28 days, the element 147 is in the retracted position and its additional tooth 148 is superimposed on a tooth 158a of the second board 143.
  • the thickness of the tooth 158a corresponds to half
  • the two teeth 148 and 158a having exactly the same shape, the additional tooth 148 is somehow retracted and has no particular effect.
  • the hollow 149 which precedes it is opposite a wider recess 166 of the board 143, which is otherwise covered by the shoulder 150 of the element 147.
  • the pinion 130 will remain blocked by sliding on the shoulders 160 and 150 during the twelfth of a turn corresponding to the month of February of a normal year, and no step in advance of the date disc will be made, as described with reference to the figure 3 .
  • the sliding element 147 In the leap position represented in figure 16 , which corresponds to a month of February of 29 days, the sliding element 147 is moved temporarily to the left with respect to the preceding figure, so that its additional tooth 148 is moved one module relative to the toothing 144, while the adjacent hollow 149 of the sliding element is always facing the wider hollow 166 of the toothing 144.
  • the shoulder 150 of the element 147 is then superimposed on the shoulder 160 of the board 143.
  • the tooth 148 and the hollow 149 thus determine the unique pitch of the advance of the first date disk at the end of February of a leap year, as described with reference to the figure 7 .
  • each satellite wheel rotates three quarters of a year in the direction of the arrow that it carries. In other words, from February to the next, it is shifted a quarter of a turn in the opposite direction to the arrow.
  • the wheel 145 has a long tooth 171 and seven short teeth 172, so that its long tooth 171 will push the sliding member 147 in February only one year out of four, which will put the element 147 in the leap position shown in FIG. figure 16 .
  • the satellite wheel 146 has five long teeth 173 that support each other. against the edge 169 of the element 147 to hold it in the position of the figure 14 , while the short teeth 172 of the other satellite wheel 145 pass along the opposite edge 168 of this element. The latter is retained by abutment against the shoulder 153.
  • the element 147 has a curved inner edge 170 who can lean against the head of the teeth of the fixed wheel 140.
  • the second program wheel 127 is identical to the first one 126 and operates in exactly the same way, to drive the second date disk 52 with the same number of steps as the first, but with a half-month lag. If necessary, another value of this offset can be chosen by modifying the mutual positions of the axes of the program wheels and the wheel 124 which drives them.
  • the figures 17 and 18 are similar to figures 12 and 13 and represent a calendar mechanism capable of operating the display shown in Figures 1 to 8 from the watch movement of the analog watch, more precisely from a central wheel of the hours 99.
  • the numbers written in italics represent the numbers of mobile teeth that will be described below.
  • the index finger 46 rotates clockwise in exactly 28 days.
  • the wheel 173 which is represented twice in the figure 18 to clarify the diagram, is integral with another central wheel 174 which meshes with a return formed of two wheels 175 and 176.
  • the wheel 176 meshes with a central wheel 177 integral with the disc of the months 56 and a other central wheel 178.
  • the latter involves, via a two-wheel return 180 and 181, a central wheel 182 secured to the disk of the years 58.
  • the central wheel 174 to sixty-seven teeth plays the same role of driving wheel that the wheel 112 of the example of figures 12 and 13 , to drive in the same way the date discs 51 and 52 via the perpetual calendar mechanism 120 comprising in particular the two program wheels 126 and 127, this mechanism being identical to that of the example mentioned above.
  • the program wheels 126 and 127 of the perpetual calendar mechanism may have a relatively simple construction of small thickness.
  • the modules of the teeth are sufficiently large, which contributes to reducing the cost of manufacture.
  • the entire calendar device described above is devoid of return springs or jumper springs, which have the disadvantage of creating friction, therefore wear and an adverse influence. on the watch.

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

Claims (16)

  1. Uhr, die mit einem Uhrwerk und einer Kalenderanzeige ausgestattet ist, umfassend:
    ein Zifferblatt (43), das mit einer festen Teilung (47) in Tage mehrerer ganzer Wochen ausgestattet ist, die sich über den gesamten Umfang des Zifferblatts erstreckt,
    Mittel zur Datumanzeige (51, 52), die schrittweise rotierend angetrieben werden und mindestens eine Datumteilung in Übereinstimmung mit der Tagteilung haben,
    und einen bewegbaren Kalenderindex (46), der vom Uhrwerk gegenüber den Tag- und Datumteilungen rotierend angetrieben wird,
    dadurch gekennzeichnet, dass die Mittel zur Datumanzeige zwei konzentrische Datumscheiben (51, 52) umfassen, die winklig zueinander verschiebbar sind, nämlich eine erste Scheibe (51), deren Teilung (53) die Daten (1 bis 15) eines ersten Abschnitts eines Monats umfasst und eine zweite Scheibe (52), deren Teilung (54) die anderen Daten bis 31 umfasst und einem zweiten Abschnitt eines Monats entspricht,
    dadurch, dass die erste Datumscheibe (51) ausgebildet ist, um um N Schritte im zweiten Abschnitt eines Monats verschoben zu werden, wobei N der Anzahl der Tage des Monats abzüglich der Tage der Tagteilung entspricht, so dass auf das letzte Datum des Monats auf der Teilung der zweiten Scheibe das erste Datum des folgenden Monats auf der Teilung der ersten Scheibe folgt,
    und dadurch, dass die zweite Datumscheibe (52) ausgebildet ist, um um dieselbe Anzahl N von Schritten im ersten Abschnitt des folgenden Monats verschoben zu werden, wodurch die kontinuierliche Abfolge der Daten auf der Gruppe, die von den zwei Datumteilungen gebildet wird, wiederhergestellt ist.
  2. Uhr nach Anspruch 1, dadurch gekennzeichnet, dass die Tagteilung (47) achtundzwanzig Tage auf dem Umfang des Zifferblatts umfasst, so dass N immer größer oder gleich Null ist und dass die Verschiebungen der Datumscheiben in aufsteigender Richtung der Tag- und Datumteilungen erfolgen.
  3. Uhr nach Anspruch 1, dadurch gekennzeichnet, dass die Tagteilung (47) fünfunddreißig Tage auf dem Umfang des Zifferblatts umfasst, so dass N immer negativ ist und dass die Verschiebungen der Datumscheiben in absteigender Richtung der Tag- und Datumteilungen erfolgen.
  4. Uhr nach Anspruch 1, dadurch gekennzeichnet, dass die Kalenderanzeige eine zu den Datumscheiben konzentrische Monatsscheibe (56) umfasst, die eine kreisrunde Monatsteilung (57) trägt, wobei diese Monatsscheibe derart angetrieben wird, dass sie in einem Jahr im Verhältnis zum bewegbaren Kalenderindex (46) eine einer Umdrehung entsprechende Rotation durchführt.
  5. Uhr nach Anspruch 1, dadurch gekennzeichnet, dass die Kalenderanzeige eine zu den Datumscheiben konzentrische Jahresscheibe (58) umfasst, die eine kreisrunde Jahresteilung (59) trägt, wobei diese Jahresscheibe derart angetrieben wird, dass sie in einer ganzen Zahl von Jahren im Verhältnis zum bewegbaren Kalenderindex (46) eine Umdrehung durchführt.
  6. Uhr nach Anspruch 5, dadurch gekennzeichnet, dass die Jahresscheibe (58) in zehn Jahren im Verhältnis zum Index eine Umdrehung durchführt, wobei ihre Teilung (59) die Ziffern von 0 bis 9 trägt, und dadurch, dass die Kalenderanzeige weiterhin eine Jahrzehntscheibe (60) umfasst, die derart angetrieben wird, dass sie im Verhältnis zum Index in einhundert Jahren eine Umdrehung durchführt und gegenüber der Jahresteilung (59) einen Jahrzehnteindex (61) trägt.
  7. Uhr nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, dass die zwei Datumteilungen (53, 54) auf Kreisbögen verschiedener Radien angeordnet sind, so dass sie teilweise nebeneinander liegen können.
  8. Uhr nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, dass die zwei Datumteilungen (53, 54) auf Kreisbögen gleicher Radien angeordnet sind, so dass sie teilweise übereinander liegen können.
  9. Uhr nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, dass sie einen vom Uhrwerk angetriebenen Kalendermechanismus (120) umfasst und zum Antreiben der ersten Datumscheibe (51) ein erstes Programmrad (126) hat, das einmal pro Monat vom Uhrwerk angetrieben wird, so dass es eine Umdrehung pro Jahr absolviert und mit einer Ausgangszahnung (144) mit fünf Lücken ausgestattet ist, die den Monaten mit weniger als einunddreißig Tagen entsprechen, und einem Räderwerk (130, 131), das die Ausgangszahnung dieses Programmrads mit einer Zahnung (132) der ersten Datumscheibe (51) verbindet.
  10. Uhr nach Anspruch 9, dadurch gekennzeichnet, dass der Kalendermechanismus (120) zum Antreiben der zweiten Datumscheibe (52) ein zweites Programmrad (127) umfasst, das dem ersten ähnelt und vom Uhrwerk einmal pro Monat angetrieben wird, so dass es eine Umdrehung pro Jahr absolviert, und ein Räderwerk (134, 135), das die Ausgangszahnung des zweiten Programmrads mit einer Zahnung (136) der zweiten Datumscheibe (52) verbindet, und dadurch, dass die zwei Programmräder (126, 127) mit einem Rad (124) mit einem Zahn (125) angetrieben werden, das pro Jahr zwölf Umdrehungen absolviert, wobei die zwei Programmräder auf der einen und der anderen Seite des Rades mit einem Zahn angeordnet sind, um von dem Zahn (125) abwechselnd im ersten Abschnitt und im zweiten Abschnitt jedes Monats angetrieben zu werden.
  11. Uhr nach Anspruch 9 oder 10, dadurch gekennzeichnet, dass das oder jedes Programmrad (126, 127) ein bewegbares Element (147) trägt, das mit einem zusätzlichen Zahn (148) ausgestattet ist und einem Steuermechanismus (140, 145, 146), wobei das bewegbare Element eine Schaltjahrposition hat, in der der zusätzliche Zahn (148) in der Lücke, die dem Monat Februar entspricht, der Ausgangszahnung (144) hinzugefügt wird, und eine Rückzugposition, in der der zusätzliche Zahn (148) eingezogen ist, wobei der Steuermechanismus derart ausgebildet ist, um das bewegbare Element (147) in jedem Monat Februar in Positionen des Programmrads, die um eine Viertelumdrehung eines Jahres zum nächsten versetzt sind, zeitweise in die Schaltjahrposition zu setzen, so dass der zusätzliche Zahn (148) das Räderwerk nur in einem von vier Jahren antreibt.
  12. Uhr nach Anspruch 11, dadurch gekennzeichnet, dass der Steuermechanismus zwei Planetenräder (145, 146) umfasst, die rotierend auf dem Programmrad befestigt sind und in ein festes Rad (140) eingreifen, das konzentrisch zum Programmrad ist, so dass jedes Planetenrad um eine Viertelumdrehung pro Jahr im Verhältnis zum Programmrad versetzt wird, wobei diese Planetenräder Kurvenscheibenflächen haben, die am bewegbaren Element (147) anschlagen, um es zu positionieren.
  13. Uhr nach Anspruch 12, dadurch gekennzeichnet, dass das feste Rad (140) sechs Zähne hat und jedes Planetenrad (145, 146) acht Zähne hat.
  14. Uhr nach Anspruch 12, dadurch gekennzeichnet, dass das mobile Element (147) ausgebildet ist, um um die Mitte des Programmrads zu drehen und dadurch, dass sein zusätzlicher Zahn (148) in seiner Rückzugposition über einem Zahn (158a) der Zähne der Ausgangszahnung (144) des Programmrads liegt.
  15. Uhr nach Anspruch 10, dadurch gekennzeichnet, dass jedes Programmrad (126, 127) federlos ist.
  16. Uhr nach Anspruch 10, dadurch gekennzeichnet, dass der Kalendermechanismus federlos ist.
EP02076291A 2002-04-02 2002-04-02 Uhr mit ewigem Kalender Expired - Lifetime EP1351105B1 (de)

Priority Applications (4)

Application Number Priority Date Filing Date Title
DE60230113T DE60230113D1 (de) 2002-04-02 2002-04-02 Uhr mit ewigem Kalender
EP02076291A EP1351105B1 (de) 2002-04-02 2002-04-02 Uhr mit ewigem Kalender
AT02076291T ATE416402T1 (de) 2002-04-02 2002-04-02 Uhr mit ewigem kalender
CH00587/03A CH696947A5 (fr) 2002-04-02 2003-04-02 Pièce d'horlogerie ayant un affichage à calendrier perpétuel.

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EP02076291A EP1351105B1 (de) 2002-04-02 2002-04-02 Uhr mit ewigem Kalender

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EP1351105B1 true EP1351105B1 (de) 2008-12-03

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Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1471396A1 (de) * 2003-04-25 2004-10-27 Frédéric Crettex Datumanzeigemechanismus für eine Uhr
CH701830B1 (fr) * 2010-03-18 2011-03-31 Cyrus Watches Rl Sa Dispositif d'affichage d'un mouvement horloger.
EP2447788B1 (de) 2010-11-02 2013-08-07 Société anonyme de la Manufacture d'Horlogerie Audemars Piguet & Cie Kalenderanzeigevorrichtung und Kalenderuhr
CH707014B1 (fr) * 2012-09-28 2017-03-15 Mft Et Fabrique De Montres Et Chronomètres Ulysse Nardin Le Locle Sa Mécanisme de quantième.
US9733618B2 (en) 2015-10-15 2017-08-15 Stephen Mansfield Timepiece with a single hand for simultaneously indicating both hours and minutes
CN109283824B (zh) * 2017-07-19 2023-11-07 天津海鸥表业集团有限公司 一种手表大日历显示机构
EP3705951A1 (de) * 2019-03-07 2020-09-09 Patek Philippe SA Genève Mechanismus zur anzeige der wochennummer fur einen uhrzeug
IT201900004735A1 (it) * 2019-03-29 2020-09-29 La Vallee S R L Dispositivo indicatore per orologeria

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE626045C (de) 1934-07-17 1936-02-19 Alois Mendl Immerwaehrender Kalender
FR884544A (fr) 1941-10-07 1943-08-19 Fontainemelon Horlogerie Montre-calendrier
CH667965GA3 (de) 1987-03-23 1988-11-30

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EP1351105A1 (de) 2003-10-08
ATE416402T1 (de) 2008-12-15
DE60230113D1 (de) 2009-01-15

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