EP3040785A1 - Datumsanzeigevorrichtung für eine Uhr - Google Patents

Datumsanzeigevorrichtung für eine Uhr Download PDF

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Publication number
EP3040785A1
EP3040785A1 EP14200612.1A EP14200612A EP3040785A1 EP 3040785 A1 EP3040785 A1 EP 3040785A1 EP 14200612 A EP14200612 A EP 14200612A EP 3040785 A1 EP3040785 A1 EP 3040785A1
Authority
EP
European Patent Office
Prior art keywords
mobile
display
date
gear
indications
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.)
Granted
Application number
EP14200612.1A
Other languages
English (en)
French (fr)
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EP3040785B1 (de
Inventor
Stefan Rombach
Benoît Gilligmann
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.)
ETA SA Manufacture Horlogere Suisse
Original Assignee
ETA SA Manufacture Horlogere Suisse
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by ETA SA Manufacture Horlogere Suisse filed Critical ETA SA Manufacture Horlogere Suisse
Priority to EP14200612.1A priority Critical patent/EP3040785B1/de
Priority to HK15112764.2A priority patent/HK1212550A2/xx
Priority to CN201521145482.6U priority patent/CN205608405U/zh
Publication of EP3040785A1 publication Critical patent/EP3040785A1/de
Application granted granted Critical
Publication of EP3040785B1 publication Critical patent/EP3040785B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • G—PHYSICS
    • G04—HOROLOGY
    • G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
    • G04B19/00—Indicating the time by visual means
    • G04B19/24—Clocks or watches with date or week-day indicators, i.e. calendar clocks or watches; Clockwork calendars
    • G04B19/243—Clocks or watches with date or week-day indicators, i.e. calendar clocks or watches; Clockwork calendars characterised by the shape of the date indicator
    • G04B19/247—Clocks or watches with date or week-day indicators, i.e. calendar clocks or watches; Clockwork calendars characterised by the shape of the date indicator disc-shaped
    • G—PHYSICS
    • G04—HOROLOGY
    • G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
    • G04B19/00—Indicating the time by visual means
    • G04B19/24—Clocks or watches with date or week-day indicators, i.e. calendar clocks or watches; Clockwork calendars
    • G04B19/243—Clocks or watches with date or week-day indicators, i.e. calendar clocks or watches; Clockwork calendars characterised by the shape of the date indicator
    • G04B19/247—Clocks or watches with date or week-day indicators, i.e. calendar clocks or watches; Clockwork calendars characterised by the shape of the date indicator disc-shaped
    • G04B19/253—Driving or releasing mechanisms
    • G04B19/25333—Driving or releasing mechanisms wherein the date indicators are driven or released mechanically by a clockwork movement
    • G04B19/25373—Driving or releasing mechanisms wherein the date indicators are driven or released mechanically by a clockwork movement driven or released stepwise by an energy source which is released at determined moments by the clockwork movement
    • G04B19/25386—Driving or releasing mechanisms wherein the date indicators are driven or released mechanically by a clockwork movement driven or released stepwise by an energy source which is released at determined moments by the clockwork movement manually corrected at the end of months having less than 31 days

Definitions

  • the present invention relates to a date display mechanism, and in particular a date display mechanism of the "big date” type.
  • the conventional date display devices for timepieces, and in particular portable wristwatches most often use an annular annular disk comprising 31 regularly distributed display sectors, each of the sectors comprising an indication corresponding to the one of the possible dates of the month.
  • the date disc is indexed by one position every day, so as to show through a window the date value corresponding to each day, which is formed of one or more digits.
  • the angular sector occupied by each indexing position is thus relatively small (360/31 is a little less than 12 degrees), which greatly limits the maximum size of the numbers that can be displayed.
  • a "big date" type display mechanism comprising a ring of units comprising the sequence 0-9 of the units is known, and a tens disk comprising a sequence of 4 digits 0-3 distributed over sectors of about 90 degrees each, like the one described in the patent EP2490083 .
  • a disadvantage of this type of calendar mechanism is to require a very large number of parts, which are dissociated for the control mechanism and display, and thus greatly encumber the platen. Moreover, the cross associated with the tens disk has a very small number of teeth, which is detrimental to the gear reliability because of the large angular steps required at each indexing.
  • An object of the present invention is to provide a date display mechanism free of these known limitations.
  • Another object of the present invention is to provide a new type of date-type date display mechanism by combining two mobiles for at least some dates, using original display indication sequences.
  • a date display device of the big date type comprising a first mobile for displaying the units and a second mobile for displaying the tens, the first and second mobiles being arranged to display the date values by combination of indications carried by the first mobile and indications carried by the second mobile, characterized in that the first mobile carries a first series of indications of consecutive unit numbers on ten first display segments regularly distributed over angular sectors of said first mobile, and that the second mobile carries a second series of indications for displaying tens of said calendar on ten second display segments regularly distributed over angular sectors of said second mobile.
  • An advantage of the present invention is to allow a better balance between the indications carried by the two mobiles, by increasing the number of display segments of the tens disk.
  • the number of display segments being identical for each of the two mobiles, the display indications carried by each of them are regularly distributed equally, which allows to better adjust the size of the characters for a combined display.
  • the increase in the sequence of indications carried by the tens display disc makes it easier and more reliable to index each index.
  • Another advantage of the proposed solution is that it makes it possible to reduce the number of parts necessary for producing the display device, by incorporating into the display mobiles functional parts for programming the indexing sequences in cycles equal to 10.
  • the two display mobiles are formed by rotary elements of substantially annular shape, that is to say whose display indications sweep a complete annular segment extending over 360 degrees during a cycle, typically monthly.
  • the indications of the two mobiles are arranged to cover the same annular surface and are superimposed on each other at least for certain calendars, the display is confined in a reduced space and the control mechanism can even advantageously be integrated in the center of the ring to gain compactness.
  • the fact that the display cycles are both equal for each of the two mobiles makes it possible to facilitate mutual programming with the aid of superposed gear segments.
  • FIGS. 1A and 1B respectively illustrate two mobiles used for the large date type display according to a preferred embodiment of the invention.
  • the first mobile M1 of the Figure 1A consists of a mobile units conventionally provided with 10 first display segments respectively referenced S10, S11, S12, S13, S14, S15, S16, S17, S18 and S19, regularly spaced and preferably arranged at the periphery of the first mobile M1 , each corresponding to one of the numbers U of a first series of indications I1 , corresponding here to the complete series of the ten units 0-9.
  • All the indications i1 of the first set of indications I1 are preferably mutually separated from one another by recesses V, in order to facilitate the display by combination with a digit from tens to at least on certain dates, and especially for allow the juxtaposition of a unit digit U to a digit tens of d in a window, the number of tens d then taking the location left free by the recess V. It will be understood however that for such a radial display, the V recesses could also be replaced by any type of spacing allowing a combination display by transparency through this mobile.
  • the second mobile M2 consists of a mobile "tens""modified", in that it is also provided with second segments of displays referenced S20, S21, S22, S23, S24, S25, S26, S27, S28 and S29, regularly distributed angularly, and preferably arranged at its periphery.
  • Each of the second display segments is associated with a second indication i2 of a second series of indications I2 each comprising about ten calendar days d.
  • the number of indications of the 2nd series I2 directions is thus not equal to 4 as in the display solutions Big traditional date, but equal to that of the first mobile M1, and the number of segments of This arrangement is particularly advantageous for setting up a control device with superposed gear sectors, which allows significant gains in space requirements, especially when each of two mobile M1, M2 display has a substantially annular shape, that is to say whose geometric shape obtained by scanning all indications during a display cycle corresponds to a ring, releasing space in its center to place a control mechanism for scheduling dates.
  • the first mobile display M1 and the second display mobile M2 can advantageously be arranged in the form of concentric rings.
  • the first mobile M1 is provided at its inner periphery with a first main gear D1 provided for the gearing with a drive wheel, as typically a 24-hour drive wheel R, illustrated later on in FIG. figure 1C , as well as the second mobile M2, which comprises a second main gear D2 also on its inner periphery for the gear with the same drive wheel R.
  • the gear teeth may also be located on their outer periphery, or on the outer periphery of one and the inner periphery of the other.
  • each of the first and second mobiles uses exactly the same number of display indications, i.e. the number of first indications i1 of the first set of indications I1 of the first mobile M1 is identical to the number of second indications i2 of the second set of indications I2 of the second mobile M2, both equal to 10.
  • These two sets of indications are, moreover, distributed over the same number of display segments, which means that each indication is not never repeated more than once during each cycle, and maximizes the size of each display segment and therefore the size of the displayed numbers.
  • the sizes of the first, second and third spacings V0, V1, V2 after the figures of the tens, and the recesses V between the numbers of the units u are preferably all identical, both in size. and angular sector occupation which makes the display particularly homogeneous and reliable for indexing.
  • some calendars will then no longer require a combination with the first mobile M1, and we can refer to such date values as "second date" Q2, c that is to say the values of full calendar displayed by the second mobile M2, as opposed to the first calendars Q1 whose display is achieved by combination indications of the first mobile 1 and indications of the 2nd mobile M2.
  • the figure 1C illustrates a top view of a drive mechanism intended to be integrated inside the space released in the center of the two mobiles M1, M2 display. It distinguishes the road M0 movement, which drives, through a gear ratio appropriate, a driving wheel R 24 hours so that the latter makes exactly one full turn each day.
  • This driving wheel R furthermore comprises a daily gear sector Re in which are preferably arranged two teeth in two different gear planes, that is to say the first gear tooth Rd1 and the second gear tooth.
  • a correction mobile B commonly called a "walkman"
  • a correction mobile B comprises a series of four correction teeth of identical profile - first correction tooth b1, second correction tooth b2, third correction tooth b3 and fourth correction tooth b4 - mutually spaced 90 degrees, to provide a good gear safety and a sufficiently fast scrolling when it is actuated, for example by means of a ring.
  • These teeth of the corrector mobile B are intended to drive respectively with a first auxiliary toothing D1 'of the first mobile M1, and a second auxiliary toothing D2' of the second mobile M2, located in gear planes separate from those of the main teeth, as illustrated. further using pairs of Figures 3A-3B and 4A, 4B .
  • the direct connection of the corrective mobile B to the first auxiliary toothing D1 'of the first mobile M1, and respectively to the second auxiliary toothing D2' of the second mobile M2 form a first auxiliary kinematic chain C1 'and a second auxiliary kinematic chain C2' completely disjointed main cinematic chains, also illustrated on the figure 10 described in detail below, corresponding to each mobile display.
  • the proposed arrangement has the same advantage of saving parts as for the driving wheel R since the connection is direct between the corrective mobile B and each mobile, without requiring any intermediate part.
  • the corrective mobile B can be located in any angular sector inside the space released in the center of the display rings of the first mobile M1 and the second mobile M2, which leaves a great flexibility of arrangement among the other 9 possible angular positions, each corresponding to another display segment that used by the drive wheel R.
  • the auxiliary teeth can then be obtained by simple circular rotation relative to the main teeth.
  • the diametrically opposite position of the correction mobile B and the driving wheel R of 24 hours corresponds to a particular case but is not an essential configuration for carrying out the invention; a particular case where the driving wheel R and the corrector mobile B are coaxial, rotating around two dissociated guns, would be even possible, to the extent that the gear planes of each of the 4 teeth mentioned above are completely dissociated.
  • a first jumper J1 and a second jumper J2 mutually superimposed but dissociated from each other are planned; they are arranged for example at the same given display segment and are interposed between two teeth of the teeth of each mobile.
  • each jumper preferably extends over the main gear planes and auxiliary gear of each mobile, so that the holding in an indexed position can always be performed for each mobile, that is to say say the first mobile M1 and the second mobile M2, in the proposed configuration with a driving wheel R of 24 hours and a correction mobile B diametrically opposed, because the jumper of each mobile (J1 for M1, and J2 for M2) will come always supported, between two consecutive display segments, on at least a first tooth of a main or auxiliary gear plane of this mobile and a second tooth of a main gear plane or auxiliary of this mobile.
  • the main and auxiliary teeth of each mobile simultaneously present two toothless gear sectors consecutive with such a 24-hour drive wheel arrangement R and correction mobile B.
  • the figure 1D shows a preferred version of a holding plate P for the drive elements illustrated in FIG. figure 1C previously described. Dotted lines are arrows pointing on the axes of the correction mobile B, the roadway M0, and the driving wheel R of 24 hours.
  • the holding plate P contains, according to this preferred embodiment, a fixed gear sector K extending substantially over the width of a display segment and which is intended, as will be seen with the aid of FIG. sequence of gear illustrated on the series of figures 6 following, in particular to allow the passage of the date to the top ten thanks to a clutch element preferably consisting of a flexible blade of the type of the first L1 shells illustrated on the Figure 1A .
  • the angular positioning of the drive pins depends on the relative position between the window, the fixed gear sector K, and the first flexible lamina L1 on which the latter acts to rotate the 2nd mobile M2, pushing this first lamella L1 radially outward in an active position "PE" said driving position, illustrated in detail by the figure 6G ;
  • the configuration proposed corresponds to that of a gear sector positioned at about 11 o'clock, and a first lamella L1 disposed at the level of the display segments corresponding to those of the unit unit "0" truncated for a window of display arranged at 9 o'clock on the dial;
  • FIGS 2C and 2D show respectively a bottom and top view of the first mobile M1 of the units in which, apart from the sequence of the 10 unit U numbers of units 0-9, there is also a first plate L1 for driving the unit.
  • second M2 mobile using tenons T1, T2, T3 described above, integral with the mobile e 2, and according to the same principle as for Figures 2A and 2B previous, a main and auxiliary toothing arranged on the same gear segments superimposed but intended to mesh in separate planes respectively with the drive wheel R of 24 hours for a daily gear, and with a correction mobile B for a correction manual date on request.
  • the first main gear D1 is identical to that shown on the Figure 1A with 10 evenly distributed display segments of the same angular value, for meshing in a first main gear plane P1 with the driving wheel R of 24 hours.
  • this first gear main plane P1 there are a main toothless sector referenced a1, shown in Black for reasons of clarity as opposed to other sectors 9, which aims to enable the indexing of mobile e 2 while leaving 1 st mobile immobile M1.
  • This type of indexing is in the preferred embodiment described, essential for the passage of the 31 th calendar one month at 1 day of the following month.
  • the first auxiliary toothing D1 ' is intended to mesh in a first auxiliary plane P1 with the corrective mobile B, and there is a corresponding auxiliary tooth sector a1', also shown in black.
  • the first mobile M1 comprises three notches, for the training of the date ending "1" to the date ending in "2" according to the preferred embodiment described. More specifically, the first notch E1, E2 2nd notch and the third notch E3 are distributed over a ring 10 of gear segments distributed regularly here at its inner circumference, which may correspond to the first display segments S10- S19 or slightly offset from them.
  • the first notch E1 and the third notch E2 are spaced apart by 3 segments, the second notch E2 and the third notch E3 are equally spaced by 3 segments, and therefore the third notch E3 and the first notch E1 being spaced apart by 4 segments.
  • the positioning of this series of notches depends on the position of the 2nd strip L2 on the 2nd mobile M2 and also to that of the dial of the display window.
  • the first notch E1 must be, according to the preferred embodiment described where the second lamella L2 is positioned at the level of the display segment S22 of FIG.
  • Figure 1B Corresponding to the indication "0X" associated with 3rd V2 spacing configured to drive the first mobile M1 when passes from 01-02, such that the second L2 lamina then cooperates with the 2nd notch E2 for the date passes from the 11 and 12, and finally with the 3rd notch E3 for the date passes from the 21 to 22.
  • the second blade L2 when switching from the 31st day of the month to 1 of the following month, the second blade L2 will be located offset from a segment relative to the first E1 and notch in such a configuration, due to the edentation 1 mobile M1 - main toothless sector referenced a1 - unlike other calendars ending with "1" preceding the 1 mobile M1 will not be driven by mobile e 2 to complete the cycle of 31 days of the month.
  • the Figures 3A and 3B respectively illustrate a three-dimensional view of the gear mechanism of the different teeth of the first and second movable with the driving wheel R 24 hours and in particular the first main gear D1 meshing in the first main gear plane P1 and the second main gear D2 meshing in the second main gear plane.
  • the sectional view of the figure 3B showing the particular arrangement of all gear planes, including auxiliary gear planes of each mobile, referenced P1 'for the 1 st mobile and P2' respectively for the two mobile e, with each of the drive teeth in the passage 31 e of the month to 1 day of the next month.
  • the first main D1 of the 1 st mobile tooth is supposed to present a toothless sector a1, while the main set of teeth D2 of the 2nd mobile tooth, therefore, the first gear tooth Rd1 the driving wheel R in the first main plane P1 does not allow to drive the first mobile M1, while the second Rd2 tooth gear engages the drive wheel R in the second principal plane P2 with a tooth of the teeth D2 of the 2nd mobile M2.
  • the first auxiliary toothing D1 'does not present a tooth on this gear sector either, which makes it possible to separate the different gear planes, which succeed one another in the following order, from high to high.
  • FIGS. 4A and 4B similarly illustrate respectively a three-dimensional view of the gear mechanism of the different teeth of the first and second mobile M1, M2 with the corrector mobile B, and in particular the auxiliary toothings for the same example of the passage 31 e of the month to 1 1st calendar of the following month.
  • the corrective mobile B meshes not in the first and second main gear planes P1, P2 of each mobile, but in a first and a second auxiliary gear plane P1 ', P2', which are affixed to one another and respectively sandwiched between the first and second main gear planes P1, P2, which makes it possible to machine the corrector mobile B with a certain thickness of toothing allowing the joint drive of the two mobiles in two adjacent planes, thus avoiding machining two teeth of the same profile, but meshing in two non-adjacent disjoint planes, like the first and second gear tooth Rd1 and Rd2 of the drive wheel R.
  • Such an arrangement therefore reduces production costs.
  • the teeth are four in number and mutually spaced by 90 degrees, but it will be understood that adjusting the number of teeth at the periphery of the corrective mobile B will determine the speed of correction: the greater the number of teeth. teeth will be high, more correction operations will be fast.
  • One of the four teeth b1-b4 of the corrective mobile B thus meshes with the two auxiliary gear teeth, whose profile is identical, for a given gear sector, to that of the main teeth with which meshes, at the same time. moment, the driving wheel R 24 hours.
  • each of the first and second movable M1, M2 respectively has a first and a second main gear D1, D2 daily gear meshing selectively with a driving wheel R 24 hours depending on the date, that is to say the current date value, depending on the presence or absence of a tooth or not.
  • the entrainment wheel R so is the starting point of the first main driveline C1 for driving the first mobile M1, and also the starting point of the 2nd main driveline C2 for driving the 2nd mobile M2.
  • the different teeth thus form a first part of a global programming mechanism, for the respective direct drive of each of the two display mobiles.
  • the scheduling mechanism of the date display is then completed by the second part consisting of the mutual and bidirectional clutch mechanism between the first and the second mobile at certain dates, or according to the preferred example described and illustrated by the figures. , for the tens of dates (09-> 10, 19-> 20, 29-> 30) and the calendars whose units go from 1 to 2 (01-> 02, 11-> 12, 21-> 22).
  • the figure 10 is a schematic view explaining the principle of operation of the bi-directional clutch mechanism between the two display mobiles according to the invention, preferably the first illustrated mobile M1 to the Figure 1A 2 and the mobile e illustrated in Figure 1B , according to which the control mechanism starts from the base movement driving in rotation a road M0, meshing directly with a driving wheel R performing a complete rotation every 24 hours for an indexing display device proposed once every day, as well as an independent corrective unit B, actuated in rotation for example by an external control rod, such as that illustrated in FIG. figure 1C previous.
  • the first mobile M1 is thus selectively driven, directly or indirectly, and according to the value of the current date, by the driving wheel R 24 hours via a first kinematic chain, while the second mobile M2 is also selectively driven, directly or indirectly and according to the value of the current date, by the same driving wheel R of 24 hours via a second separate and independent kinematic chain, as according to some mechanisms of the prior art mentioned above.
  • a first clutch mechanism 120 of the first mobile M1 to the second M2 mobile can drive the 2nd mobile M2 by the first mobile M1, without that the latter is directly driven by the driving wheel R 24 hours, and conversely, for the passage of 1 to 2 nd, 11 th 12 th, and finally the 21 st to 22 th day of the month, a second clutch mechanism 210 of the second mobile M2 to the 1st mobile M1 allows involve the 1 st mobile M1 M2 by the second mobile, without the latter being directly driven by the driving wheel R 24 hours.
  • the figure 10 refers to the two sets of two main kinematic chains C1 / C2 and auxiliary C1 '/ C2', and two series of corresponding gear planes P1 / P2 and P1 '/ P2', previously described in connection with the Figures 3A-B and 4A-B
  • the first plane P1 of the main corresponds to the gear wherein the drive wheel meshes with the main D1 1 of the first mobile toothing era M1 via the first gear tooth of Rd1
  • the second main gear plane P2 is one in which engages the 2nd main set of teeth D2 of the 2nd mobile M2 meshes with a 2nd Rd2 gear tooth of the entrainment wheel A.
  • 1 auxiliary gear plane P1 ' is one in which engages the 1 auxiliary toothing era D1 '1 mobile M1 with one of the teeth of the corrector mobile B
  • the 2nd auxiliary gear plane P2' refers to one in which engages the 2nd auxiliary teeth D2 'of the 2 nd mobile M2 with one of the teeth of the movable checker B.
  • the 1 st and 2 nd main kinematic chains C1 / C2 depart from the entrainment wheel R to respectively the 1 st and 2 nd mobile M1 / M2, and the 1 st and 2 th auxiliary kinematic chains C1 '/ C2' depart mobil e corrector B respectively to the 1 st and 2 mobile e M1 / M2.
  • no intermediate gear mobile is required in each of the kinematic chains between respectively the driving wheel R, the corrective mobile B, and each of the display mobiles, which allows a significant saving of number of parts to implement for the realization of the proposed display device.
  • the first clutch mechanism 120 of the first mobile M1 to the second mobile M2 is preferably constituted, according to the preferred embodiment described, by driving tenons (respectively first, second and third post T1, T2, T3) by the first lamella L1 3 times during a cycle of a month of 31 days, the first lamella L1 itself being secured to the first mobile M1 having 10 display segments and therefore having a smaller cycle of 10 positions indexed to the maximum.
  • An active position of the lamella L1 - referenced “PE” for "driving position” on the figure 6G - is determined by the fixed gear sector K, arranged on the plate P, which extends at least over the width of a display segment and shall allow at least the drive of the 2 nd mobile M2 for the passage tens upper, that is to say the transition from the 9th to the 10th calendar of 19 th to 20 th calendar, and 29 th to 30 th calendar.
  • this fixed gear sector K could extend over a greater width and thus maintain the driving position "PE" of the first lamella L1 not only for the passages at the top ten elicited , but also the transition from "0" to "1" which follows, that is to say for indexing corresponding to the 3rd indexing sequence described below in view of the series of Figures 7A-F .
  • the second clutch mechanism 210 of the second mobile unit M2 towards the first mobile unit M1 consists, as for it, according to the preferred embodiment described, in a drive of oriented notches (respectively first, second and third notches E1, E2, E3 ) by a second blade L2, integral with the second mobile M2, and arranged obliquely toward the inner perimeter of the 1st mobile M1.
  • the presence of three predefined spaced notches is necessary to allow the gear from 1 to 2 e and 11 e to 12 e, and finally from the 21 st to the 22 nd date, then not to train for the last day of the month, that is to say the 31 th which ends nevertheless also by the number "1".
  • first and second clutch mechanisms 120,210 between the two display mobiles use flexible strips cooperating respectively with tenons and notches, it will be understood that other variants are possible, using other types of drive elements and in particular double teeth having a suitable profile.
  • a pivoting retractable tooth could replace the first flexible lamella L1 and still be actuated in the active position by means of the fixed gear sector K; it could also be replaced by a long tooth, and also mesh with another type of drive element, such as for example a radial advance in the gear plane of the pivoting tooth replacing the tenons, which functionally represent only stop members, and therefore do not necessarily consist of pins arranged along the common axis of rotation of the two mobiles, perpendicular to their display plane, as in the preferred embodiment illustrated.
  • other drive members and stops could be employed for the second clutch mechanism 210, which does not necessarily require a flexible member.
  • a double toothing with a profile arranged on the first mobile M1 cooperate with another profile arranged on the 2nd mobile M2 could also be suitable for the implementation of the desired clutch mechanism.
  • the advantage of the preferred embodiment illustrated is that the manufacturing mode of the drive elements, flexible or not, can be achieved by stamping and thus results in significant cost savings.
  • FIG. 5A , 6A , 7A , 8A and 9A show the date of the current displayed through a window practiced in a dial C, and which is formed here by a first window F1 for displaying the digit of the tens of d and a second window F2 for displaying the digit of the U units, respectively before and after an indexing step.
  • the dates displayed through the window can theoretically correspond either to a first date Q1, when a first digit u1 is displayed using indications carried by the first mobile M1, or to a second date Q2, when the number of units is a second truncated u2 digit of the units of the first date M1, here "0" carried by the second mobile M2, but in what follows, for the sake of simplification all the calendars will be systematically displayed by a combination of a tens digit d carried by the 2 nd mobile M2 tens, and a number of units U carried by the mobile M1 1.
  • Figures 5A-F illustrates a first indexing sequence for date values whose units are between 2 and 9, ie a total of 7 indexations for the passages: 2-3, 3-4, 4-5, 5-6, 6-7, 7-8 and 8-9. This sequence of indexings is repeated 3 times on a monthly cycle, with the number of units " d " which can be equal to 0, 1 or 2.
  • Figure 5A illustrates the date "02" displayed through a window of the dial C, before indexing, and the Figures 5A and 5B respectively and the relative positions of the first and second mobiles M1, M2, seen from above and from below.
  • the driving wheel R of 24 hours is opposite the first toothed sector a21 of the second toothing D2 of the second mobile, visible on the Figure 5B , which is thus not rotated, while the first set of teeth D1 of the first mobile M1 comprises a tooth to be driven by the driving wheel R for each of the dates from 2 to 8.
  • the Figures 6A and 6D illustrate the passage of the 9th to the 10th calendar day of the month, and generally aim to explain the operation of a 2nd indexing sequence for the shift to a higher multiple, that is to say in the 9th 10th of the month, and the 19 th to 20 th, and 29 th to 30 th.
  • this 2nd indexing sequence the two mobile rotate together because the mobile 1 M1 drives the 2nd mobile M2.
  • the era 1 L1 lamella is pushed outwardly in the active position by the fixed gear sector K of the holding plate P, that is to say the drive position referenced "PE" such that it entails, for the transition to the 1 st ten, 1 tenon T1.
  • the first clutch mechanism 120 of the 2 nd mobile M2 by 1 mobile M1 through the tenon 1 T1 driven by the one lamella era L1 can drive together in rotation the 2nd mobile M2 and 1 mobile M1 of a display segment in the direction of rotation indicated on the Figures 6B and 6C .
  • the 3 rd sequence illustrated by the series of Figures 7A to 7F shows passage of the 10th of the month to the 11th of the month, and more generally aims to explain the indexing of a day ending in "0" to a calendar ending in the number "1" or the passages of the 10th to 11th day of the month, the 20th to 21st of the month, and the 30 th to 31 th day of the month.
  • the drive mode of the 1st and the 2nd mobile M1, M2 is very simple, since the main set of teeth era 1 D1 1 st mobile M1 and the 2nd main set of teeth D2 of the 2nd mobile M2 each contain a tooth which meshes with the driving wheel R, so that the clutch mechanism according to the invention is not solicited.
  • the 1 st and 2 nd auxiliary teeth D1 'and D2' will be adjusted depending on the profile of the 1 st and 2 nd main teeth D1 and D2 changed.
  • the Figures 7B and 7C show respectively a top view and from below, the relative positions of the 1st and the 2nd mobile M1 and M2, with the direction of rotation of the two movable which rotate simultaneously during indexing.
  • the Figures 7E and 7D indicate the indexed position of an additional display segment each of the two mobile M1, M2, with the 2nd strip L2 which is still in engagement with the 2nd notch but now two display segments formed below the window by the 1 st F1 display and 2nd display window F2.
  • the angular position of the first mobile M1 would be unchanged, but the 2nd strip of the 2nd mobile M2 would be positioned approximately 3 o'clock on the dial, and in the 3rd notch E3, as if on the figure 7F Only 2nd lamella L2 had been moved to position in the 3rd notch E3.
  • the position of 1st mobile would be identical M1 to that of Figures 7B / 7C before indexing and 7E / 7F after indexation, and the position of the 2nd mobile M2 is the same as it occupies on Figures 9B and 9C .
  • the fourth indexing sequence illustrated by the Figures 8A-8F is the indexing of dates whose units end in "1" to the calendars whose units end in "2" or passages from 1st to 2nd of the month and the 11th to the 12th, and 21 e to 22 e.
  • 1 mobile M1 For these calendars on 1 mobile M1 is positioned such that the one toothing era D1 has a main toothless sector a1, registered in the Figure 8B
  • the 2nd strip L2 of the 2nd mobile M2 is engaged in the 2nd slot E2 1 st mobile, so that even in the absence of the tooth on one main tooth era D1 1 mobile M1, the latter is driven in rotation by the second mobile M2, driven by the driving wheel R 24 hours of a further display segment in the direction of rotation indicated by the arrows in Figures 8B and 8C .
  • the 2nd strip L2 will engage the 3rd notch E3, and the angular position of the 2nd strip L2 will change from a substantially placement to 3 hours on the dial, at a position at 2 o'clock on the dial.
  • the driving wheel R changes from a display segment where the first main set of teeth D1 of the first mobile M1 is provided with a sector main edent a1, to a next display segment where the second main gear D2 is in turn provided with a toothless sector, namely: the first edentulous sector referenced a21 for the 2 nd calendar of the month (see Figure 5B ), the 2 nd edentulous sector referenced a22 on the figure 8E for the 12 of the month and finally the 3rd toothless sector referenced a23 to the 22nd of the month.
  • the series of Figures 9A-9F concerning the 5 th and last indexing sequence which, unlike the four indexing sequences previously described, is performed only once a month, unlike the other four previously described, which are performed 3 times each during each month.
  • the 5 th index sequence is a particular case of the 4 th index sequence in the particular case where the 2nd mobile M2 is driven only by one tooth of the toothing 2 e main D2, while the absence of tooth at the level of the first main dentition D1 - main edentulous sector referenced a1 on the Figure 9B - and no clutch mechanism between the 2nd and 1 st mobile display that the 2nd mobile M2 rotates alone without 1 mobile M1.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electromechanical Clocks (AREA)
  • Mobile Radio Communication Systems (AREA)
EP14200612.1A 2014-12-30 2014-12-30 Datumsanzeigevorrichtung für eine Uhr Active EP3040785B1 (de)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP14200612.1A EP3040785B1 (de) 2014-12-30 2014-12-30 Datumsanzeigevorrichtung für eine Uhr
HK15112764.2A HK1212550A2 (en) 2014-12-30 2015-12-28 Calendar display device for a timepiece
CN201521145482.6U CN205608405U (zh) 2014-12-30 2015-12-29 用于钟表机芯的大日期型日期显示装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP14200612.1A EP3040785B1 (de) 2014-12-30 2014-12-30 Datumsanzeigevorrichtung für eine Uhr

Publications (2)

Publication Number Publication Date
EP3040785A1 true EP3040785A1 (de) 2016-07-06
EP3040785B1 EP3040785B1 (de) 2017-08-02

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EP (1) EP3040785B1 (de)
CN (1) CN205608405U (de)
HK (1) HK1212550A2 (de)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE20103818U1 (de) * 2001-03-06 2001-06-13 Paap Karl Ludwig Zweistellige mechanische Datumsanzeige
GB2369897A (en) * 2000-12-06 2002-06-12 Souza Paul Gerard D Large date display mechanism for clocks & watches
GB2383143A (en) * 2001-12-12 2003-06-18 Souza Paul Gerard D Large date display mechanism
EP1426836A2 (de) * 2002-12-02 2004-06-09 Technotime Holding S.A.- Datumanzeigemechanismus für Uhren
EP1609028A2 (de) * 2003-04-02 2005-12-28 Ronda Ag Monatstaganzeigemechanismus für uhrenbewegung
EP2490083A1 (de) 2011-02-17 2012-08-22 Glashütter Uhrenbetrieb GmbH Programmrädchen eines Datumsmechanismus

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2369897A (en) * 2000-12-06 2002-06-12 Souza Paul Gerard D Large date display mechanism for clocks & watches
DE20103818U1 (de) * 2001-03-06 2001-06-13 Paap Karl Ludwig Zweistellige mechanische Datumsanzeige
GB2383143A (en) * 2001-12-12 2003-06-18 Souza Paul Gerard D Large date display mechanism
EP1426836A2 (de) * 2002-12-02 2004-06-09 Technotime Holding S.A.- Datumanzeigemechanismus für Uhren
EP1609028A2 (de) * 2003-04-02 2005-12-28 Ronda Ag Monatstaganzeigemechanismus für uhrenbewegung
EP2490083A1 (de) 2011-02-17 2012-08-22 Glashütter Uhrenbetrieb GmbH Programmrädchen eines Datumsmechanismus

Also Published As

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CN205608405U (zh) 2016-09-28
HK1212550A2 (en) 2016-06-10
EP3040785B1 (de) 2017-08-02

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