EP3008523A2 - Calendar mechanism for a clock movement - Google Patents

Calendar mechanism for a clock movement

Info

Publication number
EP3008523A2
EP3008523A2 EP14729694.1A EP14729694A EP3008523A2 EP 3008523 A2 EP3008523 A2 EP 3008523A2 EP 14729694 A EP14729694 A EP 14729694A EP 3008523 A2 EP3008523 A2 EP 3008523A2
Authority
EP
European Patent Office
Prior art keywords
board
wheel
mobile
tooth
toothing
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
EP14729694.1A
Other languages
German (de)
French (fr)
Other versions
EP3008523B1 (en
Inventor
Armando Valente
Carole Kasapi
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.)
Cartier International AG
Original Assignee
Cartier International AG
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 Cartier International AG filed Critical Cartier International AG
Priority to EP14729694.1A priority Critical patent/EP3008523B1/en
Publication of EP3008523A2 publication Critical patent/EP3008523A2/en
Application granted granted Critical
Publication of EP3008523B1 publication Critical patent/EP3008523B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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
    • 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
    • G04B19/2534—Driving or releasing mechanisms wherein the date indicators are driven or released mechanically by a clockwork movement driven or released continuously by the clockwork movement
    • 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 present invention relates to a counting device, for a watch movement calendar mechanism, comprising a fixed gear member and a program mobile, coaxial, the latter comprising a first rotary board having an external toothing, a device for correcting short months, supported by the first board and having at least a first movable tooth in reference to the first board between a first position, retracted, and a second position, extracted, in which it is added to the toothing of the first board, by juxtaposition or superimposition,
  • control mechanism arranged to define the position of the first movable tooth and comprising at least a first wheel arranged in engagement with the fixed toothed member.
  • Additional mobile worn by the first board, are arranged to ensure the training of the mobile program an additional step at the end of the month of 29 and 30 days.
  • this device is complex because it has a large number of wheels, some of which are stacked on top of each other, in addition to the sliding element, all these components being carried by the program mobile.
  • the program mobile necessarily has a large diameter as well as a large thickness.
  • the patent application CH 699102 A2 in the name of the present Applicant, describes an annual calendar mechanism, for a watch movement, comprising a program mobile of construction similar to that of the program mobile of the preceding document, that it being also coaxial with a fixed toothed member.
  • This program mobile carries a first wheel arranged in engagement with the fixed toothed member and arranged in simultaneous engagement with two conventional gear trains of conventional type, to correct the display of the date at the end of the short month.
  • This mechanism also makes it possible to perform a bidirectional manual correction of the date value.
  • Each gear train drives a correction gear, most of whose teeth are truncated.
  • the two correction wheels are superimposed on one another, while having offset axes of rotation, which renders the assembly of the program mobile unclear.
  • this construction is relatively complex and also has a large footprint because of the high number of wheels carried by the mobile program .
  • the assembly of this mechanism is also complex.
  • the mechanism is arranged to introduce, at first, an offset between the two date wheels at the beginning of the short months, this difference corresponding to the difference between 31 and the number of days of the month concerned. This offset amounts to programming the second date wheel so that its angular orientation is representative of the effective number of days of the current month.
  • the mechanism is released, at the end of the month, to allow the first date wheel carrying the display member to catch the angular orientation of the second date wheel and directly display the display. the first day of the following month.
  • This mechanism is however very complex to achieve and develop and has a relatively large footprint in terms of the area occupied in the plane of the watch movement.
  • This application relates to an annual or perpetual calendar mechanism, for a watch movement, comprising a program mobile arranged to train in particular a date display mobile.
  • the program mobile has three tracks, the shape of which depends on the number of days in the months of the year, each of which is associated with a retractable tooth.
  • the program mobile is associated with a gear reduction gear arranged to provide a differentiated rotation training of the different tracks.
  • Each retractable tooth is housed in a radial groove and carries a pin engaged in the corresponding track, so that the tooth is guided to move in a radial direction, for the purpose of complete a drive tooth of the date display mobile when necessary.
  • a main object of the present invention is to overcome the disadvantages of counting devices known from the prior art, by proposing a alternative construction, less complex and less cumbersome but allowing to obtain the same result, with a total reliability.
  • the present invention relates more particularly to a counting device of the type indicated above, characterized in that the control mechanism comprises a moving month, rotatably mounted on the first board, comprising a toothing having a kinematic connection with the first wheel and, carrying a first variable radius cam arranged to cooperate with the first movable tooth and define its position.
  • the counting device has a limited size in the plane of the corresponding watch movement, as well as in the axial direction of the program mobile.
  • Moving the movable tooth between its two positions makes it possible to take into account the difference in duration between the months of 30 days and the months of 31 days.
  • the first wheel is a rotary wheel mounted according to an axis integral with the first board, the additional teeth of the first board being an internal toothing.
  • the counting device can equip an annual calendar or perpetual calendar movement mechanism.
  • it advantageously comprises a second movable tooth with reference to the first board between a first position, retracted, and a second position, extracted, in which it is added to the toothing of the first board, by juxtaposition or superposition.
  • the first cam is arranged to cooperate with the second movable tooth so as to also define the position.
  • the counting device also takes into account the reduced number of days in February, without taking into account leap years in the case of an annual calendar and, with their inclusion in the case of a perpetual calendar.
  • the correction device short months comprises a first resilient member arranged to act on the movable tooth or teeth and define at least one of the first and second positions.
  • the first elastic member comprises an elastically deformable arm movable tooth, each of which has an end portion associated with the corresponding movable tooth.
  • the first cam has a periphery arranged to act, if necessary, on the first movable tooth or on the first and second movable teeth so as to exert pressure on them and to push them towards their extracted position.
  • the first elastic member has a generally open ring shape comprising a lug arranged to cooperate with abutment surfaces formed in the first board to make the elastic member integral in rotation of the first board.
  • the calendar mechanism When the calendar mechanism is of the perpetual type, it may comprise a second elastic member, leap correction, integral in rotation with the first board and acting on a third movable tooth with reference to the first board between a first position, retracted, and a second position, extracted, in which it is added to the teeth of the first board, by juxtaposition or superposition, the control mechanism being also arranged to define the position of the third tooth.
  • control mechanism preferably comprises
  • a second wheel preferably a satellite wheel, having a kinematic link with the mobile of the months and rotatably mounted along an axis integral with the first board,
  • a bilextile correction device rotatably mounted on the first board and comprising a toothing having a kinematic connection with the second wheel and carrying a second variable radius cam arranged to cooperate with the third movable tooth and define its position.
  • the second satellite wheel is arranged in engagement with an additional gear of the months mobile.
  • first and second planet wheels are arranged coaxially, which further reduces the number of components and the size of the counting device according to the invention.
  • the second elastic member comprises at least one elastically deformable arm and having an end portion associated with the third movable tooth.
  • the device may further comprise an additional board, secured to the first board and having a housing for the second member so that the latter is secured to the additional board in rotation.
  • the program mobile has a kinematic connection with a date display member.
  • it may also have a kinematic link with a display member of the day of the week and / or with a display member of the month and / or with a display member leap years.
  • the invention also relates to a watch movement comprising such a counting device and a timepiece comprising such a watch movement.
  • FIG. 1 represents a simplified front view of a part of a watch movement comprising a counting device according to a first preferred embodiment of the present invention
  • FIG. 2 shows an exploded perspective view of a portion of the construction shown in Figure 1;
  • Figure 3 shows a simplified front view of some elements shown in Figure 2, when assembled
  • Figure 4 shows a simplified perspective view of the watch movement of Figure 1;
  • Figure 5 shows an exploded perspective view of a construction detail of the watch movement of Figure 1;
  • Figure 6 shows a simplified front view of some elements of the watch movement of Figure 1, isolated
  • FIG. 7 represents an exploded perspective view similar to that of FIG. 2, in relation to a second preferred embodiment of the invention.
  • Figure 8 shows a simplified front view of some elements illustrated in Figure 7, when assembled.
  • FIG. 1 represents a simplified front view of a part of a watch movement, according to a first preferred embodiment of the invention, comprising display members for information relating to a calendar, preferably annual or perpetual type.
  • this watch movement comprises three toothed discs 1, 2 and 3 each carrying a window 4 intended to cooperate with a ring (not shown) bearing indications, respectively, the date, the month and the day of the week.
  • the calendar When the calendar is of the annual type, it is necessary to provide a specific counting device capable of taking into account the difference in duration between the months of 30 days and the months of 31 days. In addition, an annual calendar is usually scheduled considering that the month of February has 29 days. Thus, a correction of the date is necessary at the end of February of non-leap years which counts only 28 days.
  • the calendar When the calendar is of the perpetual type, it is programmed to take into account the difference in the number of days between leap years and non-leap years for the month of February.
  • the watch movement illustrated here as a non-limiting indicative is of the perpetual type, although the object of the present invention is also applicable to an annual type of calendar, with some adaptations of the present teaching, within the scope of the skilled person.
  • the watch movement comprises a counting device 200 which will be described in detail in connection with FIGS. 2 and 3 and which is arranged to ensure correct training of a display gear of the days of the week. 400, described with reference to FIGS. 4 and 5, of a date display gear wheel 500, visible in FIGS. 1 and 4, and of a month display gear train 600, described with reference to FIG. .
  • the watch movement of FIG. 1 also comprises a cogwheel year 700, driven from the display gear of the months 600 and which will not be described in detail. Indeed, this cog in leap years simply comprises a plurality of mobile arranged to introduce the correct gearing to be applied to a display member leap years, from a wheel bearing information on the months.
  • FIGS. 1 and 4 mechanisms for correcting the information to be displayed by the calendar have been represented in FIGS. 1 and 4, in the region of implantation of the winding stem 5.
  • the 24-hour mobile comprises a first wheel 202 having three superimposed levels of teeth.
  • a first level of toothing 204 to 24 teeth is intended to mesh with the hour wheel.
  • Four teeth of the first toothing 204 have a thickness greater than the other teeth to extend into a second level of toothing 206, whose function will be explained later.
  • the fourth of these four teeth has a thickness greater than that of the first three to extend in a third gear level 208, thus having only one tooth.
  • the 24-hour mobile further comprises an additional board 210 for driving the display gear of the days of the week 400.
  • the board 210 has only one tooth 21 1, while the rest of its periphery has a radius greater than that which would have the bottom of a complete toothing that would correspond to the tooth 21 1.
  • the first wheel 202 carries two fingers 212 and 214, intended to cooperate respectively with holes 216 and 218 of the additional board, to ensure the correct angular positioning of the latter on the first wheel.
  • the additional board is here assembled to the first wheel by means of screws 220 by way of nonlimiting illustration.
  • the mobile 24 hours is intended to ensure the training of a mobile program 222 so that the number of days of the different months is taken into account to control the display of the calendar.
  • the motions of the program mobile 222 are transmitted to the display disc 1 of the date, in a conventional manner, by means of the date wheel 500.
  • the program mobile 222 comprises a first board 224 having a first gear 225 of 31 teeth.
  • the first board has a first support surface 226 on which is arranged a first elastic member 227, correction of short months, carrying first and second movable teeth 228 and 229.
  • the first member 227 has the general shape of an open ring comprising a frame having two arms in the shape of a portion of a circle and carrying, each at its end, a movable tooth.
  • the first elastic member 227 has two portions distinct from each other and substantially symmetrical to define two independent arms, without departing from the scope of the present invention.
  • the frame also has a lug 230, here substantially diametrically opposed to the teeth 228, 229 and intended to cooperate with the side walls of a slot 232 formed in the first board 224 to ensure the correct positioning and maintenance of the first organ 227 on the first board.
  • Each of the teeth 228, 229 is arranged in an additional slot 234, formed in the first board, to contribute to maintaining the first elastic member on the first board and, to ensure radial guidance of the teeth when they are moved between a first position, retracted, and a second position, extracted.
  • the first board has first and second annular housing 236, 237 juxtaposed at different depth levels and intended to house a moving month 238.
  • the mobile of the month 238 has the general shape of a two-level crown.
  • a first level, intended to be housed in the first housing 236, performs the function of a cam 240 whose periphery has a variable external radius. More specifically, the periphery of the cam 240 has five inactive portions, of the same radius, separated from each other by four simple bosses 241, associated with the months of April, June, September and November, and a double boss 242 associated with the February. It will be noted that two inactive portions, associated respectively with the months of July-August and December-January, have a double length compared to the three others. The function of the cam will be explained later, in connection with FIG.
  • the inner periphery of the cam 240 has a tooth 244 directed towards its center and whose function will also be explained later.
  • the second level of the mobile of the month 238 has an internal toothing 245 intended to be housed in the second housing 237.
  • the first board 224 also comprises a finger 246 intended to serve as a support for first and second planet wheels 248 and 249.
  • a toothed member 250 fixed, is arranged in the center of the first board 224, the latter being assembled to a frame member of the watch movement not shown.
  • the toothed member carries a single tooth 251 arranged to cooperate with the first satellite wheel 248 and rotate it on itself as it passes in front of it.
  • the rotation of the first satellite wheel 248 causes a rotation of the mobile of the month 238 with reference to the first plate 224, by cooperation with its internal toothing 245.
  • a second intermediate board 252 is secured to the first board 224 by means of screws 254, in particular to maintain assembled all that has just been described.
  • the second board 252 has a support surface 256 on which is arranged a second elastic member 257, leap correction, carrying a third movable tooth 258.
  • the second member 257 comprises a frame having a generally annular shape and comprising first and second portions 259, 260, resiliently deformable, each of which is connected to one side of the third movable tooth 258.
  • the frame also has a lug 261, here substantially diametrically opposed to the tooth 258 and intended to cooperate with a slot 262 formed in the second board 252 to ensure the correct positioning and maintenance of the second member 257 on the second board .
  • the third tooth 258 is arranged in an additional slot 264, formed in the second board, to contribute to the maintenance of the second elastic member on the second board and, to ensure a radially guiding the tooth when moved between a first retracted position and a second retracted position.
  • a mobile correction comprising a third board 266 is assembled on the second board 252, so as to be free to rotate relative to the latter, in particular to ensure an axial retention of the second member 257.
  • the inner face of the third board carries a pinion 268 coaxial with the board.
  • This pinion 268 is intended to mesh with the second satellite wheel 249 to induce a rotation of the third board 266 relative to the first board 224.
  • the inner face of the third board also carries a second cam 270 (visible in transparency), similar to the first cam 240 and whose periphery has a variable external radius. More specifically, the periphery of the cam 270 has three bosses 271, with reference to a base radius, two of which are diametrically opposed and the third is situated between the two, at 90 degrees. An inactive portion 272 is diametrically opposed to the third boss.
  • a jumper 274 cooperates with the toothing 204 to ensure the angular positioning of the mobile program 222, in a conventional manner.
  • Figure 3 illustrates some details of operation of the program mobile 222 which has just been described.
  • Figure 3 illustrates the configuration of certain components of the counting device according to the present invention as they are a February 28.
  • the first of the teeth 206 of the mobile 24 hours 201 extending on the second level is located within range of the program mobile 222.
  • the mobile 24 hours rotates clockwise in the illustration of Figure 3.
  • the month of February has 28 days, which implies that the mobile program 222 must turn four steps to ind iquer then the first day of the following month.
  • the third movable tooth 258 (not visible in Figure 3) is in its extracted position, that is to say in the position to cooperate with the first tooth 206 of the mobile 24 hours.
  • the bosses 271 of the second cam 270 are intended to exert pressure on the third movable tooth 258, the last day of February non-leap years, to place it in its extracted position.
  • the inactive portion 272 is disposed opposite the third movable tooth to allow it to position itself in its retracted position.
  • the first tooth 206 drives the mobile program 222 a step in the counterclockwise direction, through the third movable tooth 258.
  • the date display is increased from 28 to 29.
  • the first cam 240 is arranged in such a way that its double boss 242 is located opposite the first two movable teeth 228 and 229 to place them both in their extracted position (although they are shown slightly recessed on the Figure 3 to facilitate understanding of the mechanism).
  • the second tooth 206 of the second level meets the first movable tooth 228 and causes an additional rotation of a step of the mobile program 222.
  • L display of the date then changes from 29 to 30.
  • the third tooth 206 of the second level meets the second movable tooth 229 and causes an additional rotation of a step of the program mobi 212.
  • the display of the date then passes the 30 to 31.
  • the fourth tooth 208 extending at the third level meets a tooth of the first toothing 225 of the program mobile and causes an additional rotation of a step of the latter.
  • the display of the date then changes from 31 to 1.
  • the movable teeth 228, 229 and 258 are no longer in position to mesh with the mobile 24 hours for at least 28 days.
  • the third movable tooth 258 is in its retracted position, that is to say out of reach of the first tooth 206 of the 24-hour mobile, the inactive portion 272 of the cam 270 being located in look at the third movable tooth 258.
  • the first three teeth 206 extending at the second level pass the mobile program 222 without driving, while the fourth tooth 208 extending at the third level comes into contact with a tooth of the first gear 225 to rotate the program mobile one step.
  • the display of the date then changes from 28 to 29.
  • the mobile 24 hours 201 then continues to turn on itself for 20 hours without contacting the mobile program
  • the first tooth 206 extending at the second level meets the first movable tooth 228 and causes a rotation of a step of the mobile program 222.
  • the display of the date passes then from the 29th to the 30th.
  • the second tooth 206 of the second level meets the second movable tooth 229 and causes an additional rotation of a step of the mobile program 222.
  • the display The date then goes from 30 to 31.
  • the third tooth 206 of the second level passes next to the program mobile 222 but does not lead to it since the first set of teeth 225 is located at the third level, ie out of reach of this tooth 206.
  • the date display remains unchanged.
  • the fourth tooth 208 extending at the third level encounters a tooth of the first toothing 225 of the program mobile and causes an additional rotation of a step of the latter.
  • the display of the date then changes from 31 to 1.
  • the rotation of the mobile program 222 on itself causes a rotation of the two planet wheels 248 and 249 around the fixed tooth member 250, because the finger 246 is integral with the first board 224 of the program mobile 222.
  • the toothing of the first satellite wheel 248 slides on the periphery of the toothed member 250, similarly to a transmission of the Maltese cross type, generally implemented in certain date mechanisms.
  • the first satellite wheel 248 rotates around the toothed member 250 without being able to turn on itself.
  • This type of construction advantageously makes it possible to do without jumpers to ensure the angular positioning of certain wheels of the mechanism.
  • the simple boss 241 located to the right of the inactive portion mentioned above is positioned next to the second movable tooth 229 to push back to its extracted position.
  • the first movable tooth 228 remains in the retracted position since it is always located opposite a portion of the cam 240 of reduced radius.
  • the respective roles of the first and second movable teeth can here be reversed depending on the arrangement of the various bosses on the cam 240, without departing from the scope of the invention.
  • the first tooth 206 located at the second level cooperates with the second movable tooth 229 to advance the program mobile 222 by one step.
  • the display of the date then changes from 30 to
  • the mobile of the month 238 also makes a complete turn in one year compared to the second satellite wheel 249 which is pivoted on the rod 246, integral with the first board 224.
  • the toothing of the second satellite wheel 249 slides on the inner periphery of the cam 240 to lock the satellite wheel by a Maltese cross type connection, as outlined above in relation to the first satellite wheel 248 and the fixed toothed member 250.
  • the gear ratio between the second planet wheel 249 and the pinion 268 of the third plate 266 is such that the latter rotates a quarter turn when the second satellite wheel 249 rotates a quarter turn. once a year.
  • a boss 271 of the cam 270 is located opposite the third movable tooth 258 to position it in its extracted position.
  • the inactive portion 272 of the cam 270 is located opposite the third movable tooth 258 to let it take its retracted position, under the effect of the forces exerted by the elastic portions 259 and 260.
  • FIG. 4 represents a perspective view of the elements already illustrated in FIG. 1.
  • the components of the display gear of the days of the week 400 are more particularly visible in this figure.
  • the tooth 21 1 of the board 210 of the 24-hour mobile is arranged to drive a 401 input mobile of the wheels of the week at each complete turn of the mobile 24 hours on itself.
  • the mobile input 401 comprises a reference 402, arranged to cooperate with the tooth 21 1 and secured to a pinion 404 meshing with a first wheel 406 of a friction wheel 407, including an example of a preferred structure will be described later in connection with Figure 5.
  • the link between the reference 402 and the board 210 of the 24-hour mobile 201 is here again of the Maltese cross type, that is to say that the toothing of the reference 402 slides on the periphery of the board 210 except when the tooth
  • the rotation of the first wheel 406 here causes that of a second wheel 408 of the friction wheel.
  • the latter is engaged with a pinion 410 of a reduction gear wheel whose wheel 412 is arranged in engagement with the toothing of the display disc 3 days of the week.
  • each day when the 24-hour mobile 201 performs a turn on itself, it causes the advancement of a step of the window 4 display days of the week.
  • a jumper 413 is arranged to ensure the proper positioning of the wheel 412 of the mobile gear.
  • a correction mechanism of the display of the days of the week is provided so as to act directly on the wheel 400.
  • This correction mechanism comprises a control lever 414 intended to be pivotally mounted on a frame element of the movement.
  • watchmaker corresponding by means of a shaft (not shown) cooperating with a hole 416 of the lever.
  • a non-visible pusher is adapted to act on a receiving surface 418 to pivot the lever counterclockwise in FIG. 4.
  • the lever 414 carries a spring blade 420 backed against a spout 422 at the free end of the lever.
  • the lever is arranged in such a way that, when it pivots, it exerts a pressure on a star 423 with twelve branches carried by a correction mobile of the days 424, by means of the leaf spring 420, for the rotate one step in the clockwise direction.
  • the correction mobile days includes a wheel 426 having a kinematic connection with the second wheel 408 of the friction wheel 407, through a reference 428. Therefore, each pressure exerted on the control lever 414 has the effect of advancing step 3 of displaying days of the week by one step.
  • the input mobile 401 is held in a fixed angular position by the cooperation of the reference 402 with the periphery of the board 210.
  • a friction mechanism is provided between these two wheels.
  • the correction mobile 424 days is also driven in the clockwise rotation direction in FIG. 4.
  • the blade spring 420 is arranged to elastically deform to allow the relevant branch of star 423 to pass in front of it.
  • Figure 5 illustrates a preferred embodiment, without limitation, of such a friction mechanism, in an exploded perspective view of the friction wheel 407.
  • the first and second wheels 406, 408 of the friction wheel are coupled via a ring 430, substantially star-shaped and rotationally fixed to the first wheel 406, and a spring 432, integral with the second wheel 408 and performing a function similar to that of a jumper.
  • the spring 432 has a generally circular shape and comprises four S-shaped arms 434 carrying, two by two and between them, nozzles 436 intended to cooperate with the crown 430 to define stable relative angular positions between the two wheels. 406 and 408.
  • Each of the nozzles 436 is carried by a frame 438 carrying a lug 440 intended to cooperate with a radial slot 442 formed in the second wheel 408, to ensure radial guidance of the nozzles 436 while maintaining the angular positioning of the spring relative to at the second wheel 408.
  • the second wheel 408 which is driven, as a consequence of an action of a user on the control lever 414, which also causes a rotation of the display disc of the days of the week.
  • the first wheel 406 is locked in rotation by the Maltese cross type connection made between the board 210 and the input mobile 401.
  • the second wheel 408 rotates, it causes a deformation of the arms 434 of the spring 432 to allow the nozzles 436 to cross the teeth of the crown 430.
  • the second wheel 408 rotates on itself while the first wheel 406 remains stationary.
  • the mobile input 401 is arranged in direct contact with the correction mobile days 424, the latter being engaged with the display disc 3 days of the week through the pinion 410 and the wheel 412 of the mobile gear.
  • the Maltese cross connection as described above between the board 210 of the 24-hour mobile and the mobile input 401, must be removed to allow correction of the day of the week, via the control lever 414, without affecting the operation of the mechanism of calendar.
  • the reduction mobile carries a star with 7 branches arranged to cooperate with a positioning jumper, to ensure the correct positioning of the display disc 3 days of the week.
  • the date-related information can be corrected by action on the winding stem 5, via a suitable date correction mechanism.
  • the latter comprises a sliding pinion 450 mounted on a rocker 452 can be moved between first and second angular positions depending on the axial positions of the winding stem.
  • the rocker 452 pivots clockwise to place the sliding pinion 450 in engagement with the toothing of the display disc 1 of the date.
  • the sliding pinion is also placed in engagement with a correction wheel 454 having a kinematic connection with a sliding pinion 456, integral in rotation with the winding stem, in a conventional manner.
  • Figure 6 shows a simplified front view and partial transparency illustrating the transmission provided between the date display disc 1 and the display disc months 2.
  • the display disk of the date 1 carries a ring 601 driving months, visible in transparency under the disk 1 in Figure 6.
  • This ring 601 cooperates with the pinion 602 of a mobile gear 604 under the form of a Maltese cross type as described above. It has indeed a periphery of constant radius such that the pinion can rotate most of the time, its teeth sliding on the periphery of the ring.
  • the latter also has two teeth 606 and 608 for driving the pinion 602 in the anti-clockwise rotation of two steps per month, by way of non-limiting illustration.
  • the reduction gear further comprises a wheel 610 integral with the gear 602 in rotation and arranged in engagement with the display disc of the months 2.
  • a wheel 610 integral with the gear 602 in rotation and arranged in engagement with the display disc of the months 2.
  • the angular position of the reduction gear 604 is further enhanced here by an optional jumper 612.
  • the wheel 610 is engaged with a reference 701 constituting the entry point of the cog in leap years 700 which will not be described in detail. Indeed, this wheel has a number of mobile adapted to allow the multiplication of information relating to the change of months to an indication of leap years that spanned a cycle of 48 months.
  • Figures 7 and 8 illustrate partial views of a watch movement according to a second preferred embodiment of the present invention.
  • the unchanged components compared to the first embodiment which has just been described bear the same numerical references to facilitate understanding of the mechanism according to the second embodiment.
  • the 24-hour mobile 201 is unchanged with reference to the first embodiment. It is intended to train a mobile program 522 in such a way that the number of days of the different months is taken into account to control the display of the calendar, similarly to what has been described in relation with the first embodiment.
  • the program mobile 522 comprises a first board 524 having a first gear 525 of 31 teeth.
  • the first board has a first support surface 526 on which is arranged a first elastic member 527 associated with first and second movable teeth 528 and 529 correction of short months, so as to act on them and maintain them in a retracted configuration.
  • the elastic member 527 has the general shape of an open ring comprising a frame 530, intended to be assembled to the first board 524 and having two arms in the form of a portion of a circle whose free end of each is associated with one of the movable teeth, being housed in a fitted slot in the corresponding movable tooth.
  • the frame 530 here substantially diametrically opposed to the teeth 528, 529, has two holes intended to cooperate with the fingers 532, carried by the first board 524, to ensure the correct positioning and maintenance of the elastic member 527 on the first board.
  • the elastic member is made in two substantially symmetrical parts, without departing from the scope of the invention.
  • Each of the teeth 528, 529 is arranged in a slot 534, formed in the first board, to provide radial guidance of the teeth when they are moved between a first position, retracted, and a second position, extracted.
  • the first board has an annular housing 536 for housing a mobile 538 months.
  • the mobile 538 months has the general shape of a two-level crown.
  • a first level, intended to be placed in the housing 536, fulfills the function of a cam 540 whose periphery has a variable external radius. More specifically, the periphery of the cam 540 has five inactive portions, of the same radius, separated from each other by four simple bosses 541, associated with the months of April, June, September and November, and a double boss 542 associated with the February. It will be noted that two inactive portions, associated respectively with the months of July-August and December-January, have a double length compared to the three others.
  • the function of the cam 540 is similar to that of the cam 240 described above, in connection with the first embodiment.
  • the periphery of the cam 540 has a tooth 544 arranged projecting and whose function will also be explained later.
  • the second level of the mobile of the months 538 has an internal toothing 545.
  • the first board 524 also includes first and second fingers 546, 547 intended to serve as a support, respectively, for first and second planet wheels 548 and 549.
  • a fixed toothed member 550 is arranged in the center of the first board 524, the latter being assembled to a frame member of the non-illustrated watch movement.
  • the toothed organ carries a single tooth
  • the rotation of the first satellite wheel 548 causes a rotation of the mobile 538 months with reference to the first board 524, by cooperation with its internal toothing 545.
  • the rotation of the mobile 538 months causes that of the second satellite wheel 549 by cooperation of the latter with the tooth 544.
  • the second satellite wheel 549 advantageously comprises a Maltese cross 553 (distinguishable in transparency) which cooperates with the bottom of the toothing 545 to lock the second wheel 549 as long as the tooth 544 does not engage in the Maltese cross 553 to rotate it.
  • a second intermediate board 552 is secured to the first board 524 by means of screws 554, in particular to maintain assembled all that has just been described.
  • the second board 552 has a support surface 556 on which is arranged a second elastic member 557, arranged to act on a third movable tooth 558 leap correction.
  • the second elastic member 557 comprises a frame 559 from which extends an elastic finger 560, substantially in the form of a portion of a circle and whose free end is housed in a slot adapted to the third movable tooth 558, to keep the latter in a retracted configuration.
  • the frame also has holes 561 for cooperating with fingers 562 formed on the second board 552 to ensure the correct positioning and maintenance of the second elastic member 557 on the second board.
  • the third tooth 558 is arranged in an additional slot 564, formed in the second board, to ensure radial guidance of the tooth when moved between a first position, retracted, and a second position, extracted.
  • a correction mobile 566 is supported by the second board 552, so as to be free to rotate relative thereto.
  • a first level of the correction mobile 566 includes a set of teeth
  • a second level of the correction mobile 566 comprises a second cam 570, similar to the first cam 540, and whose periphery has a variable external radius. More specifically, the periphery of the cam 570 has six bosses 571, with reference to a base radius, diametrically opposed in pairs and arranged in such a way that two inactive portions 572, diametrically opposite one another, are provided to define two series of three successive bosses.
  • a closure cover 574 is provided to hold the assembled assembly, being secured to the first board 524 by means of the screws 554.
  • Figure 8 shows a top view illustrating the nature of the cooperation between some of the components just described, similar to the view of Figure 3 for the first embodiment.
  • the second cam 570 here has cycles of 8 years with reference to the second plate 552, by way of non-limiting illustration, while the mechanism according to the first embodiment is arranged in such a way that the cam 270 presents 4-year cycles with reference to the second board 252.
  • a counting device for a calendar mechanism comprising a control mechanism comprising a mobile months, mounted rotating on a first board of a mobile program and carrying a variable radius cam arranged to cooperate with a movable tooth to define the position, according to the number of days of the current month, without departing from the scope of the present invention.
  • the forms illustrated and described for the cams 240, 270, 540 and 570 are illustrative as well as their mode of cooperation with the corresponding movable teeth.
  • at least one of the cams has the shape of an irregular ring but constant thickness and that this ring is engaged in a groove formed transversely in each tooth corresponding instead of being simply arranged at the rear of the movable tooth concerned to push it.
  • the cam rotates and its portion engaged in a tooth sees its radius vary, it causes a radial displacement of the movable tooth between its first and second positions, or in both directions.
  • the cam could have alternating recesses and columns, in the manner of a column wheel, in the case of a simple or annual calendar, without departing from the scope of the invention.
  • the first elastic member 227, 527 can be made in one or more parts without affecting the implementation of the present invention, the movable teeth can in particular be made in one piece with him or not.

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

Abstract

The present invention relates to a counting device, for a calendar mechanism of a clock movement, comprising a stationary toothed part (250, 550) and a program train (222, 522) which are coaxial, the latter comprising a first rotary plate (224, 524) having outer teeth (225, 525), a device for correcting short months which includes at least one tooth (228, 528) that is movable between a retracted position and an extracted position, in which said tooth is added to the teeth (225, 525) of the first plate, and a control mechanism (238, 248, 538, 548) arranged such as to define the position of the movable tooth (228, 528) and including at least one wheel (248, 548) arranged such as to engage with the stationary toothed part (250, 550). Said device is characterized in that the control mechanism comprises a train for the months (238, 538), which is rotatably mounted on the first plate (224, 524), which includes teeth (245, 545) that have a kinematic connection with the wheel (248, 548), and which supports a cam (240, 540) that is arranged such as to engage with the movable tooth (228, 528) and define the position thereof.

Description

Description  Description
MECANISME DE CALENDRIER POUR MOUVEMENT HORLOGER  CALENDAR MECHANISM FOR WATCHMAKING MOVEMENT
Domaine technique Technical area
[0001] La présente invention concerne un dispositif de comptage, pour mécanisme de calendrier de mouvement horloger, comportant un organe denté fixe et un mobile de programme, coaxiaux, ce dernier comportant une première planche rotative présentant une denture externe, un dispositif de correction des mois courts, supporté par la première planche et présentant au moins une première dent mobile en référence à la première planche entre une première position, escamotée, et une seconde position, extraite, dans laquelle elle est ajoutée à la denture de la première planche, par juxtaposition ou superposition,  The present invention relates to a counting device, for a watch movement calendar mechanism, comprising a fixed gear member and a program mobile, coaxial, the latter comprising a first rotary board having an external toothing, a device for correcting short months, supported by the first board and having at least a first movable tooth in reference to the first board between a first position, retracted, and a second position, extracted, in which it is added to the toothing of the first board, by juxtaposition or superimposition,
ainsi qu'un mécanisme de commande agencé pour définir la position de la première dent mobile et comprenant au moins une première roue agencée en prise avec l'organe denté fixe.  and a control mechanism arranged to define the position of the first movable tooth and comprising at least a first wheel arranged in engagement with the fixed toothed member.
Etat de la technique  State of the art
[0002] De tels dispositifs ont déjà été divulgués, comme notamment dans le brevet EP 1351 104 B1 , délivré le 26 novembre 2008 au nom de Ulysse Nardin S.A.. Ce brevet décrit un mécanisme de calendrier perpétuel répondant aux caractéristiques énoncées c i-dessus, dans lequel le premier organe portant la dent mobile est réalisé sous la forme d'un élément coulissant, monté sur la première planche de manière à pouvoir cou lisser entre des positions active et inactive. Le mécanisme de commande associé comprend une pluralité de roues satellites agencées en liaison cinématique avec une roue fixe et, dont au moins l'une agit sur l'élément coulissant pour le déplacer entre ses positions active et inactive. Lorsque l'élément coulissant est dans sa position active, sa dent engrène avec la roue de 24 heures qui commande les rotations du mobile de programme, pour permettre l'entraînement de cette dernière d'un pas supplémentaire à la fin des mois de février des années non bissextiles.  [0002] Such devices have already been disclosed, such as in particular in the patent EP 1351 104 B1, issued on November 26, 2008 in the name of Ulysse Nardin SA This patent describes a perpetual calendar mechanism meeting the characteristics set out above, wherein the first member carrying the movable tooth is in the form of a sliding member, mounted on the first board so as to be able to smooth between active and inactive positions. The associated control mechanism comprises a plurality of planet wheels arranged in kinematic connection with a fixed wheel and, of which at least one acts on the sliding element to move it between its active and inactive positions. When the sliding element is in its active position, its tooth meshes with the 24-hour wheel which controls the rotations of the program wheel, to allow the training of the latter to take an additional step at the end of February non-leap years.
[0003] Des mobiles supplémentaires, portés par la première planche, sont agencés pour assurer l'entraînement du mobile de programme d'un pas supplémentaire à la fin des mois de 29 et de 30 jours. [0004] Ainsi, ce dispositif est complexe car il comporte un nombre important de roues dont certaines, sont empilées les unes sur les autres, en plus de l'élément coulissant, tous ces composants étant portés par le mobile de programme. De ce fait, le mobile de programme présente nécessairement un diamètre conséquent de même qu'une épaisseur importante. Additional mobile, worn by the first board, are arranged to ensure the training of the mobile program an additional step at the end of the month of 29 and 30 days. Thus, this device is complex because it has a large number of wheels, some of which are stacked on top of each other, in addition to the sliding element, all these components being carried by the program mobile. As a result, the program mobile necessarily has a large diameter as well as a large thickness.
[0005] La dema nde de brevet CH 699102 A2, au nom de la présente Demanderesse, décrit un mécanisme de calendrier annuel, pour mouvement horloger, comprenant un mobile de programme de construction similaire à celle du mobile de programme du document précédent, celui-ci étant également coaxial à un organe denté fixe. Ce mobile de programme porte une première roue agencée en prise avec l'organe denté fixe et agencée en prise simultanée avec deux trains d'engrenages, d e type convention nel, pour corriger l'affichage du quantième en fin de mois court. Ce mécanisme permet également d'effectuer une correction manuelle bidirectionnelle de la valeur du quantième. Chaque train d'engrenage assure l'entraînement d'une roue dentée de correction, dont la majeure partie des dents sont tronquées. Les deux roues de correction sont superposées l'une à l'autre, tout en ayant des axes de rotation décalés, ce qu i rend l'assemblage du mobile de programme peu évident.  [0005] The patent application CH 699102 A2, in the name of the present Applicant, describes an annual calendar mechanism, for a watch movement, comprising a program mobile of construction similar to that of the program mobile of the preceding document, that it being also coaxial with a fixed toothed member. This program mobile carries a first wheel arranged in engagement with the fixed toothed member and arranged in simultaneous engagement with two conventional gear trains of conventional type, to correct the display of the date at the end of the short month. This mechanism also makes it possible to perform a bidirectional manual correction of the date value. Each gear train drives a correction gear, most of whose teeth are truncated. The two correction wheels are superimposed on one another, while having offset axes of rotation, which renders the assembly of the program mobile unclear.
[0006] Ainsi, bien qu'elle ne permette pas la prise en compte de la durée plus courte du mois de février, cette construction est relativement complexe et présente également un encombrement important du fait du nombre élevé de roues portées par le mobile de programme. De plus, l'assemblage de ce mécanisme est également complexe.  Thus, although it does not allow the taking into account of the shorter duration of the month of February, this construction is relatively complex and also has a large footprint because of the high number of wheels carried by the mobile program . In addition, the assembly of this mechanism is also complex.
[0007] D'autres constructions de mécanismes de calendrier pour mouvement horloger sont connues, dans lesquelles aucun organe denté fixe n'est prévu.  [0007] Other constructions of calendar mechanisms for a watch movement are known, in which no fixed toothed member is provided.
[0008] Une telle approche est par exemple exposée dans la demande de brevet EP 1868047 A1 , au nom de Vaucher Manufacture Fleurier, qui concerne un mécanisme de calendrier annuel ou perpétuel. La construction de ce mécanisme prévoit des première et seconde roues de quantième superposées l'une à l'autre et indexées l'une par rapport à l'autre au moyen d'un ressort. Les deux roues de quantième sont entraînées par une roue de 24 heures, tandis qu'une première d'entre elles est destinée à porter un organe d'affichage du quantième. Par ailleurs, les deux roues de quantième engrènent respectivement avec des première et seconde roues de correction d'un mobile de correction comportant en outre trois couronnes de correction pour les mois courts et un engrenage différentiel intercalé entre les deux roues de correction. Le mécanisme est agencé pour introduire, dans un premier temps, un décalage entre les deux roues de quantième au début des mois courts, ce décalage correspondant à la différence entre 31 et le nombre de jours du mois concerné. Ce décalage revient à programmer la seconde roue de quantième pour que son orientation angulaire soit représentative du nombre de jours effectif du mois en cours. Dans un second temps, le mécanisme est libéré, en fin de mois, pour permettre à la première roue de quantième, portant l'organe d'affichage, de rattraper l'orientation angulaire de la seconde roue de quantième et assurer directement l'affichage du premier jour du mois suivant. Such an approach is for example set forth in patent application EP 1868047 A1, in the name of Vaucher Manufacture Fleurier, which concerns an annual or perpetual calendar mechanism. The construction of this mechanism provides first and second date wheels superimposed on each other and indexed with respect to each other at the same time. means of a spring. The two date wheels are driven by a wheel of 24 hours, while a first of them is intended to carry a date display member. Furthermore, the two date wheels mesh respectively with first and second correction wheels of a correction wheel further comprising three correction crowns for the short months and a differential gear interposed between the two correction wheels. The mechanism is arranged to introduce, at first, an offset between the two date wheels at the beginning of the short months, this difference corresponding to the difference between 31 and the number of days of the month concerned. This offset amounts to programming the second date wheel so that its angular orientation is representative of the effective number of days of the current month. In a second step, the mechanism is released, at the end of the month, to allow the first date wheel carrying the display member to catch the angular orientation of the second date wheel and directly display the display. the first day of the following month.
[0009] Ce mécanisme est cependant très complexe à réaliser et à mettre au point et présente un encombrement relativement important en termes de surface occupée dans le plan du mouvement horloger.  This mechanism is however very complex to achieve and develop and has a relatively large footprint in terms of the area occupied in the plane of the watch movement.
[0010] Une autre approche est proposée dans la demande de brevet WO 2013/068519 A1 , au nom de GFPI S.A.. Cette demande concerne un mécanisme de calendrier annuel ou perpétuel, pour mouvement horloger, comprenant un mobile de programme agencé pour entraîner notamment un mobile d'affichage du quantième. Le mobile de programme comporte trois pistes, dont la forme est fonction des nombres de jours des mois de l'année, et dont chacune est associée à une dent rétractable. Le mobile de programme est associé à un mobile démultiplicateur agencé pour assurer un entraînement en rotation différencié des différentes pistes. Chaque dent rétractable est logée dans une rainure radiale et porte un téton engagé dans la piste correspondante, de telle manière que la dent soit guidée pour se déplacer suivant une direction radiale, dans le but de compléter une denture d'entraînement du mobile d'affichage du quantième lorsque c'est nécessaire. Another approach is proposed in the patent application WO 2013/068519 A1, in the name of GFPI SA. This application relates to an annual or perpetual calendar mechanism, for a watch movement, comprising a program mobile arranged to train in particular a date display mobile. The program mobile has three tracks, the shape of which depends on the number of days in the months of the year, each of which is associated with a retractable tooth. The program mobile is associated with a gear reduction gear arranged to provide a differentiated rotation training of the different tracks. Each retractable tooth is housed in a radial groove and carries a pin engaged in the corresponding track, so that the tooth is guided to move in a radial direction, for the purpose of complete a drive tooth of the date display mobile when necessary.
[001 1] Par conséquent, ce mécanisme présente un encombrement, en termes de surface, similaire à celui décrit précédemment, du fait de la nécessité d'avoir un mobile adjacent au mobile de programme. [001 1] Therefore, this mechanism has a size, in terms of area, similar to that described above, because of the need to have a mobile adjacent to the mobile program.
[0012] Par ailleurs, on note que non seulement la réalisation pratique des pistes, en tant que telles, est délicate, mais ces pistes sont portées par des roues dentées et leur positionnement en référence aux dentures correspondantes est également délicat. De plus le mode de coopération entre ces pistes et les tétons portés par les dents doit donner lieu à une usure des pistes et/ou des tétons au fil du temps, conduisant à terme à un dysfonctionnement du mécanisme. De manière similaire, les rainures de guidage des dents rétractables peuvent également présenter une usure à terme, qui risque d'être accélérée dès le moment où la coopération entre les tétons et les pistes devient moins précise. Enfin, l'assemblage du mobile de programme est complexe du point de vue des positionnements relatifs entre ses différents constituants.  Furthermore, it is noted that not only the practical realization of the tracks, as such, is delicate, but these tracks are carried by gear wheels and their positioning with reference to the corresponding teeth is also delicate. In addition the mode of cooperation between these tracks and the pins carried by the teeth must give rise to wear of the tracks and / or pins over time, eventually leading to a malfunction of the mechanism. Similarly, the guide grooves of the retractable teeth may also exhibit a term wear, which may be accelerated as soon as the cooperation between the pins and the tracks becomes less precise. Finally, the assembly of the program mobile is complex from the point of view of the relative positioning between its different constituents.
[0013] De manière générale, il ressort de la présentation qui précède, de mécanismes de calendrier connus de l'état de la technique, que plusieurs approches de construction sont possibles pour parvenir au même résultat, en termes d'affichage. Il en ressort également que les constructions correspondantes sont relativement com plexes et présentent donc forcément un grand nombre de caractéristiques qui leur sont spécifiques, de telle manière qu'il est quasiment impossible d'imaginer ne serait ce que des variantes de réalisation de ces mécanismes sans nécessairement faire preuve d'activité inventive. In general, it follows from the above presentation of calendar mechanisms known from the state of the art, that several construction approaches are possible to achieve the same result, in terms of display. It also appears that the corresponding constructs are relatively complex and therefore necessarily have a large number of characteristics which are specific to them, in such a way that it is almost impossible to imagine any variant of these mechanisms without necessarily demonstrate inventive activity.
[0014] Ainsi, il serait avantageux pour les fabricants de mouvements horlogers de pouvoir disposer d'une nouvelle construction pour les mécanismes de calendrier du type mentionné plus haut, qui serait plus simple que les constructions connues et, donc, nécessairement plus fiable dans le temps.Thus, it would be advantageous for watch movement manufacturers to have a new construction for calendar mechanisms of the type mentioned above, which would be simpler than known constructions and, therefore, necessarily more reliable in the time.
Divulgation de l'invention Disclosure of the invention
[0015] Un but principal de la présente invention est de pallier les inconvénients des dispositifs de comptage connus de l'art antérieur, en proposant une construction alternative, moins complexe et moins encombrante mais permettant d'obtenir le même résultat, avec une fiabilité totale. A main object of the present invention is to overcome the disadvantages of counting devices known from the prior art, by proposing a alternative construction, less complex and less cumbersome but allowing to obtain the same result, with a total reliability.
[0016] A cet effet, la présente invention concerne plus particulièrement un dispositif de comptage du type indiqué plus haut, caractérisé par le fait que le mécanisme de commande comporte un mobile des mois, monté rotatif sur la première planche, comprenant une denture présentant une liaison cinématique avec la première roue et, portant une première came de rayon variable agencée pour coopérer avec la première dent mobile et en définir la position. For this purpose, the present invention relates more particularly to a counting device of the type indicated above, characterized in that the control mechanism comprises a moving month, rotatably mounted on the first board, comprising a toothing having a kinematic connection with the first wheel and, carrying a first variable radius cam arranged to cooperate with the first movable tooth and define its position.
[0017] Grâce à ces caractéristiques, le dispositif de comptage selon la présente invention présente un encombrement limité dans le plan du mouvement horloger correspondant, de même que suivant la direction axiale du mobile de programme. With these features, the counting device according to the present invention has a limited size in the plane of the corresponding watch movement, as well as in the axial direction of the program mobile.
[0018] Le déplacement de la dent mobile entre ses deux positions permet de prendre en compte la différence de durée entre les mois de 30 jours et les mois de 31 jours.  Moving the movable tooth between its two positions makes it possible to take into account the difference in duration between the months of 30 days and the months of 31 days.
[0019] On peut prévoir que la première roue est une roue satellite montée rotative suivant un axe solidaire de la première planche, la denture supplémentaire de la première planche étant une denture interne.  It can be provided that the first wheel is a rotary wheel mounted according to an axis integral with the first board, the additional teeth of the first board being an internal toothing.
[0020] Selon u n mode de réalisation préféré, le dispositif de comptage selon l'invention peut équiper un mécanisme de calendrier annuel ou perpétuel de mouvement horloger. Dans ce cas, il comporte avantageusement une seconde dent mobile en référence à la première planche entre une première position, escamotée, et une seconde position, extraite, dans laquelle elle est ajoutée à la denture de la première planche, par juxtaposition ou superposition. En outre, la première came est agencée pour coopérer avec la seconde dent mobile de manière à en définir également la position. According to a preferred embodiment, the counting device according to the invention can equip an annual calendar or perpetual calendar movement mechanism. In this case, it advantageously comprises a second movable tooth with reference to the first board between a first position, retracted, and a second position, extracted, in which it is added to the toothing of the first board, by juxtaposition or superposition. In addition, the first cam is arranged to cooperate with the second movable tooth so as to also define the position.
[0021] Ainsi, le dispositif de comptage permet de prendre en compte également le nombre de jours réduit du mois de février, sans prise en compte des années bissextiles dans le cas d'un calendrier annuel et, avec leur prise en compte dans le cas d'un calendrier perpétuel. [0022] De manière avantageuse, le dispositif de correction des mois courts comprend un premier organe élastique agencé pour agir sur la ou les dents mobiles et définir au moins l'une des première et seconde positions. Dans ce cas, on peut prévoir que le premier organe élastique comprend un bras élastiquement déformable par dent mobile, dont chacun présente une portion terminale associée à la dent mobile correspondante. Thus, the counting device also takes into account the reduced number of days in February, without taking into account leap years in the case of an annual calendar and, with their inclusion in the case of a perpetual calendar. Advantageously, the correction device short months comprises a first resilient member arranged to act on the movable tooth or teeth and define at least one of the first and second positions. In this case, it can be provided that the first elastic member comprises an elastically deformable arm movable tooth, each of which has an end portion associated with the corresponding movable tooth.
[0023] Il est alors possible de prévoir que la première came présente une périphérie agencée de manière à agir, en cas de besoin, sur la première dent mobile ou sur les première et seconde dents mobiles de manière à exercer une pression sur elles et à les repousser en direction de leur position extraite.  It is then possible to provide that the first cam has a periphery arranged to act, if necessary, on the first movable tooth or on the first and second movable teeth so as to exert pressure on them and to push them towards their extracted position.
[0024] Suivant une variante de réalisation préférée, le premier organe élastique présente une forme générale d'anneau ouvert comprenant un ergot agencé pour coopérer avec des surfaces de butée ménagées dans la première planche pour rendre l'organe élastique solidaire en rotation de la première planche.  According to a preferred embodiment, the first elastic member has a generally open ring shape comprising a lug arranged to cooperate with abutment surfaces formed in the first board to make the elastic member integral in rotation of the first board.
[0025] Lorsque le mécanisme de calendrier est du type perpétuel, il peut comporter un second organe élastique, de correction bissextile, solidaire en rotation de la première planche et agissant sur une troisième dent mobile en référence à la première planche entre une première position, escamotée, et une seconde position, extraite, dans laquelle elle est ajoutée à la denture de la première planche, par juxtaposition ou superposition, le mécanisme de commande étant également agencé pour définir la position de la troisième dent.  When the calendar mechanism is of the perpetual type, it may comprise a second elastic member, leap correction, integral in rotation with the first board and acting on a third movable tooth with reference to the first board between a first position, retracted, and a second position, extracted, in which it is added to the teeth of the first board, by juxtaposition or superposition, the control mechanism being also arranged to define the position of the third tooth.
[0026] Grâce à ces caractéristiques, la prise en compte de la différence de durée du mois de février entre les années bissextiles et les années non bissextiles est possible.  With these characteristics, taking into account the difference in duration of the month of February between leap years and non-leap years is possible.
[0027] Dans ce cas, le mécanisme de commande comprend préférablement  In this case, the control mechanism preferably comprises
une seconde roue, préférablement une roue satellite, présentant une liaison cinématique avec le mobile des mois et montée rotative suivant un axe solidaire de la première planche,  a second wheel, preferably a satellite wheel, having a kinematic link with the mobile of the months and rotatably mounted along an axis integral with the first board,
un mobile de correction bissextile monté rotatif sur la première planche et comprenant une denture présentant une liaison cinématique avec la seconde roue et portant une seconde came de rayon variable agencée pour coopérer avec la troisième dent mobile et en définir la position. a bilextile correction device rotatably mounted on the first board and comprising a toothing having a kinematic connection with the second wheel and carrying a second variable radius cam arranged to cooperate with the third movable tooth and define its position.
[0028] De manière préférée, la seconde roue satellite est agencée en prise avec une denture supplémentaire du mobile des mois.  Preferably, the second satellite wheel is arranged in engagement with an additional gear of the months mobile.
[0029] Il est possible de prévoir que les première et seconde roues satellites sont agencées de manière coaxiale, ce qui permet de réduire davantage le nombre de composants et l'encombrement du dispositif de comptage selon l'invention. It is possible to provide that the first and second planet wheels are arranged coaxially, which further reduces the number of components and the size of the counting device according to the invention.
[0030] Par ailleurs, on peut avantageusement prévoir que le second organe élastique comporte au moins un bras élastiquement déformable et présentant une portion terminale associée à la troisième dent mobile.  Furthermore, it is advantageous that the second elastic member comprises at least one elastically deformable arm and having an end portion associated with the third movable tooth.
[0031] Le dispositif peut en outre comporter une planche supplémentaire, solidaire de la première planche et, présentant un logement pour le second organe de telle manière que ce dernier est solidaire de la planche supplémentaire en rotation.  The device may further comprise an additional board, secured to the first board and having a housing for the second member so that the latter is secured to the additional board in rotation.
[0032] Suivant un mode de réalisation préféré de la présente invention, le mobile de programme présente une liaison cinématique avec un organe d'affichage du quantième. De manière complémentaire, il peut présenter également une liaison cinématique avec un organe d'affichage du jour de la semaine et/ou avec un organe d'affichage du mois et/ou avec un organe d'affichage des années bissextiles.  According to a preferred embodiment of the present invention, the program mobile has a kinematic connection with a date display member. In a complementary manner, it may also have a kinematic link with a display member of the day of the week and / or with a display member of the month and / or with a display member leap years.
[0033] L'invention concerne également un mouvement horloger comportant un tel dispositif de comptage ainsi qu'une pièce d'horlogerie comportant un tel mouvement horloger.  The invention also relates to a watch movement comprising such a counting device and a timepiece comprising such a watch movement.
Brève description des dessins  Brief description of the drawings
[0034] D'autres caractéristiques et avantages de la présente invention apparaîtront plus clairement à la lecture de la description détaillée d'un mode de réalisation préféré qui suit, faite en référence aux dessins annexés donnés à titre d'exemples non limitatifs et dans lesquels:  Other features and advantages of the present invention will appear more clearly on reading the detailed description of a preferred embodiment which follows, with reference to the accompanying drawings given by way of non-limiting examples and in which :
[0035] - la figure 1 représente une vue générale de face simplifiée d'une partie d'un mouvement horloger comportant un dispositif de comptage selon un premier mode de réalisation préféré de la présente invention; [0036] - la figure 2 représente une vue en perspective éclatée d'une partie de la construction présentée sur la figure 1 ; [0035] FIG. 1 represents a simplified front view of a part of a watch movement comprising a counting device according to a first preferred embodiment of the present invention; [0036] - Figure 2 shows an exploded perspective view of a portion of the construction shown in Figure 1;
[0037] - la figure 3 représente une vue de face simplifiée de certains éléments illustrés sur la figure 2, lorsqu'ils sont assemblés; [0037] - Figure 3 shows a simplified front view of some elements shown in Figure 2, when assembled;
[0038] - la figure 4 représente une vue en perspective simplifiée du mouvement horloger de la figure 1 ; [0038] - Figure 4 shows a simplified perspective view of the watch movement of Figure 1;
[0039] - la figure 5 représente une vue en perspective éclatée d'un détail de construction du mouvement horloger de la figure 1 ; [0039] - Figure 5 shows an exploded perspective view of a construction detail of the watch movement of Figure 1;
[0040] - la figure 6 représente une vue de face simplifiée de certains éléments du mouvement horloger de la figure 1 , isolés; [0040] - Figure 6 shows a simplified front view of some elements of the watch movement of Figure 1, isolated;
[0041] - la figure 7 représente une vue en perspective éclatée similaire à celle de la figure 2, en relation avec un second mode de réalisation préféré de l'invention, et  [0041] FIG. 7 represents an exploded perspective view similar to that of FIG. 2, in relation to a second preferred embodiment of the invention, and
[0042] - la figure 8 représente une vue de face simplifiée de certains éléments illustrés sur la figure 7, lorsqu'ils sont assemblés. [0042] - Figure 8 shows a simplified front view of some elements illustrated in Figure 7, when assembled.
Mode(s) de réalisation de l'invention  Mode (s) of realization of the invention
[0043] La figure 1 représente une vue générale de face simplifiée d'une partie d'un mouvement horloger, selon un premier mode de réalisation préféré de l'invention, comportant des organes d'affichage d'informations relatives à un calendrier, préférablement de type annuel ou perpétuel.  FIG. 1 represents a simplified front view of a part of a watch movement, according to a first preferred embodiment of the invention, comprising display members for information relating to a calendar, preferably annual or perpetual type.
[0044] Plus précisément, il est prévu que ce mouvement horloger comporte trois disques dentés 1 , 2 et 3 portant chacun un guichet 4 destiné à coopérer avec un anneau (non illustré) portant des indications, respectivement, du quantième, du mois et du jour de la semaine.  More specifically, it is expected that this watch movement comprises three toothed discs 1, 2 and 3 each carrying a window 4 intended to cooperate with a ring (not shown) bearing indications, respectively, the date, the month and the day of the week.
[0045] Lorsque le calendrier est du type annuel, il est nécessaire de prévoir un dispositif de comptage spécifique capable de prendre en compte la différence de durée entre les mois de 30 jours et les mois de 31 jours. En outre, un calendrier annuel est généralement programmé en considérant que le mois de février comporte 29 jours. Ainsi, une correction du quantième est nécessaire à la fin du mois de février des années non bissextiles qui ne compte que 28 jours. [0046] Lorsque le calendrier est du type perpétuel, il est programmé pour prendre en compte la différence de nombre de jours entre les années bissextiles et les années non bissextiles pour le mois de février. When the calendar is of the annual type, it is necessary to provide a specific counting device capable of taking into account the difference in duration between the months of 30 days and the months of 31 days. In addition, an annual calendar is usually scheduled considering that the month of February has 29 days. Thus, a correction of the date is necessary at the end of February of non-leap years which counts only 28 days. When the calendar is of the perpetual type, it is programmed to take into account the difference in the number of days between leap years and non-leap years for the month of February.
[0047] Le mouvement horloger illustré ici à titre indicatif non limitatif est du type perpétuel, bien que l'objet de la présente invention soit également applicable à un calendrier de type annuel, moyennant quelques adaptations du présent enseignement, à la portée de l'homme du métier.  The watch movement illustrated here as a non-limiting indicative is of the perpetual type, although the object of the present invention is also applicable to an annual type of calendar, with some adaptations of the present teaching, within the scope of the skilled person.
[0048] En particulier, le mouvement horloger comporte un dispositif de comptage 200 qui sera décrit en détail en relation avec les figures 2 et 3 et, qui est agencé pour assurer un entraînement correct d'un rouage d'affichage des jours de la semaine 400, décrit en relation avec les figures 4 et 5, d'un rouage d'affichage du quantième 500, visible sur les figures 1 et 4, et d'un rouage d'affichage des mois 600, décrit en relation avec la figure 6.  In particular, the watch movement comprises a counting device 200 which will be described in detail in connection with FIGS. 2 and 3 and which is arranged to ensure correct training of a display gear of the days of the week. 400, described with reference to FIGS. 4 and 5, of a date display gear wheel 500, visible in FIGS. 1 and 4, and of a month display gear train 600, described with reference to FIG. .
[0049] Le mouvement horloger de la figure 1 comporte également un rouage des années bissextiles 700, entraîné à partir du rouage d'affichage des mois 600 et, qui ne sera pas décrit en détail. En effet, ce rouage des années bissextiles comporte simplement une pluralité de mobiles agencés pour introduire la démultiplication correcte à appliquer à un organe d'affichage des années bissextiles, à partir d'une roue portant une information relative aux mois.  The watch movement of FIG. 1 also comprises a cogwheel year 700, driven from the display gear of the months 600 and which will not be described in detail. Indeed, this cog in leap years simply comprises a plurality of mobile arranged to introduce the correct gearing to be applied to a display member leap years, from a wheel bearing information on the months.
[0050] En outre, des mécanismes de correction des informations à afficher par le calendrier ont été représentés sur les figures 1 et 4, dans la région d'implantation de la tige de remontoir 5.  In addition, mechanisms for correcting the information to be displayed by the calendar have been represented in FIGS. 1 and 4, in the region of implantation of the winding stem 5.
[0051] Le cœur du dispositif de comptage 200 va être décrit maintenant en relation avec les figures 2 et 3. The heart of the counting device 200 will now be described in relation to FIGS. 2 and 3.
[0052] Celui-ci comporte un mobile de 24 heures 201 destiné à être entraîné en rotation à partir de la roue des heures (non représentée) du mouvement horloger, pour faire un tour complet sur lui-même en 24 heures. This includes a mobile 24 hours 201 to be rotated from the hour wheel (not shown) of the watch movement, to make a complete turn on itself in 24 hours.
[0053] A cet effet, le mobile de 24 heures comprend une première roue 202 présentant trois niveaux superposés de dentures. For this purpose, the 24-hour mobile comprises a first wheel 202 having three superimposed levels of teeth.
[0054] Un premier niveau de denture 204 à 24 dents est destiné à engrener avec la roue des heures. [0055] Quatre dents de la première denture 204 présentent une épaisseur supérieure aux autres dents pour s'étendre dans un second niveau de denture 206, dont la fonction sera exposée ultérieurement. A first level of toothing 204 to 24 teeth is intended to mesh with the hour wheel. Four teeth of the first toothing 204 have a thickness greater than the other teeth to extend into a second level of toothing 206, whose function will be explained later.
[0056] La quatrième de ces quatre dents présente une épaisseur supérieure à celle des trois premières pour s'étendre dans un troisième niveau de denture 208, ne comportant donc qu'une seule dent.  The fourth of these four teeth has a thickness greater than that of the first three to extend in a third gear level 208, thus having only one tooth.
[0057] Le mobile de 24 heures comprend en outre une planche supplémentaire 210 d'entraînement du rouage d'affichage des jours de la semaine 400. La planche 210 ne comporte qu'une seule dent 21 1 , tandis que le reste de sa périphérie présente un rayon supérieur à celui que présenterait le fond d'une denture complète qui correspondrait à la dent 21 1.  The 24-hour mobile further comprises an additional board 210 for driving the display gear of the days of the week 400. The board 210 has only one tooth 21 1, while the rest of its periphery has a radius greater than that which would have the bottom of a complete toothing that would correspond to the tooth 21 1.
[0058] La première roue 202 porte deux doigts 212 et 214, destinés à coopérer respectivement avec des trous 216 et 218 de la planche supplémentaire, pour assurer le bon positionnement angulaire de cette dernière sur la première roue. La planche supplémentaire est ici assemblée à la première roue au moyen de vis 220 à titre illustratif non limitatif.  The first wheel 202 carries two fingers 212 and 214, intended to cooperate respectively with holes 216 and 218 of the additional board, to ensure the correct angular positioning of the latter on the first wheel. The additional board is here assembled to the first wheel by means of screws 220 by way of nonlimiting illustration.
[0059] Le mobile de 24 heures est destiné à assurer l'entraînement d'un mobile de programme 222 de telle manière que le nombre de jours des différents mois est pris en compte pour commander l'affichage du calendrier. Les mouvements du mobile de programme 222 sont transmis au disque d'affichage 1 du quantième, de manière conventionnelle, par l'intermédiaire du rouage de quantième 500.  The mobile 24 hours is intended to ensure the training of a mobile program 222 so that the number of days of the different months is taken into account to control the display of the calendar. The motions of the program mobile 222 are transmitted to the display disc 1 of the date, in a conventional manner, by means of the date wheel 500.
[0060] Le mobile de programme 222 comporte une première planche 224 présentant une première denture 225 de 31 dents.  The program mobile 222 comprises a first board 224 having a first gear 225 of 31 teeth.
[0061] La première planche présente une première surface de support 226 sur laquelle est agencé un premier organe élastique 227, de correction des mois courts, portant des première et seconde dents mobiles 228 et 229.  The first board has a first support surface 226 on which is arranged a first elastic member 227, correction of short months, carrying first and second movable teeth 228 and 229.
[0062] Le premier organe 227 présente la forme générale d'un anneau ouvert comprenant un bâti présentant deux bras en formes de portion de cercle et portant, chacun à son extrémité, une dent mobile.  The first member 227 has the general shape of an open ring comprising a frame having two arms in the shape of a portion of a circle and carrying, each at its end, a movable tooth.
[0063] Bien entendu, il est possible de prévoir, en alternative, que le premier organe élastique 227 comporte deux portions distinctes l'une de l'autre et sensiblement symétriques pour définir deux bras indépendants, sans sortir du cadre de la présente invention. Of course, it is possible to provide, alternatively, that the first elastic member 227 has two portions distinct from each other and substantially symmetrical to define two independent arms, without departing from the scope of the present invention.
[0064] Le bâti présente également un ergot 230, ici sensiblement diamétralement opposé aux dents 228, 229 et, destiné à coopérer avec les parois latérales d'une fente 232 ménagée dans la première planche 224 pour assurer le positionnement correct et le maintien du premier organe 227 sur la première planche. The frame also has a lug 230, here substantially diametrically opposed to the teeth 228, 229 and intended to cooperate with the side walls of a slot 232 formed in the first board 224 to ensure the correct positioning and maintenance of the first organ 227 on the first board.
[0065] Chacune des dents 228, 229 est agencée dans une fente supplémentaire 234, ménagée dans la première planche, pour contribuer au maintien du premier organe élastique sur la première planche et, pour assurer un guidage radial des dents lorsqu'elles sont déplacées entre une première position, escamotée, et une seconde position, extraite.  Each of the teeth 228, 229 is arranged in an additional slot 234, formed in the first board, to contribute to maintaining the first elastic member on the first board and, to ensure radial guidance of the teeth when they are moved between a first position, retracted, and a second position, extracted.
[0066] La première planche présente des premier et second logements annulaires 236, 237 juxtaposés, à des niveaux de profondeur différents et, destinés à loger un mobile des mois 238.  The first board has first and second annular housing 236, 237 juxtaposed at different depth levels and intended to house a moving month 238.
[0067] Le mobile des mois 238 présente la forme générale d'une couronne à deux niveaux.  The mobile of the month 238 has the general shape of a two-level crown.
[0068] Un premier niveau, destiné à être logé dans le premier logement 236, remplit la fonction d'une came 240 dont la périphérie présente un rayon externe variable. Plus précisément, la périphérie de la came 240 présente cinq portions inactives, de même rayon, séparées les unes des autres par quatre bossages simples 241 , associés aux mois d'avril, juin, septembre et novembre, et un bossage double 242, associé au mois de février. On notera que deux portions inactives, associées respectivement aux mois de juillet-août et décembre-janvier, présentent une longueur double par rapport aux trois autres. La fonction de la came sera exposée ultérieurement, en relation avec la figure 3.  A first level, intended to be housed in the first housing 236, performs the function of a cam 240 whose periphery has a variable external radius. More specifically, the periphery of the cam 240 has five inactive portions, of the same radius, separated from each other by four simple bosses 241, associated with the months of April, June, September and November, and a double boss 242 associated with the February. It will be noted that two inactive portions, associated respectively with the months of July-August and December-January, have a double length compared to the three others. The function of the cam will be explained later, in connection with FIG.
[0069] La périphérie interne de la came 240 présente une dent 244 dirigée vers son centre et dont la fonction sera également exposée ultérieurement.  The inner periphery of the cam 240 has a tooth 244 directed towards its center and whose function will also be explained later.
[0070] Le second niveau du mobile des mois 238 comporte une denture interne 245 destinée à être logée dans le second logement 237. [0071] La première planche 224 comprend également un doigt 246 destiné à servir de support pour des première et seconde roues satellites 248 et 249. The second level of the mobile of the month 238 has an internal toothing 245 intended to be housed in the second housing 237. The first board 224 also comprises a finger 246 intended to serve as a support for first and second planet wheels 248 and 249.
[0072] Par ailleurs, un organe denté 250, fixe, est agencé au centre de la première planche 224, celui-ci étant assemblé à un élément de bâti du mouvement horloger non illustré. L'organe denté porte une dent unique 251 agencée pour coopérer avec la première roue satellite 248 et la faire tourner sur elle-même lorsqu'elle passe devant lui.  Furthermore, a toothed member 250, fixed, is arranged in the center of the first board 224, the latter being assembled to a frame member of the watch movement not shown. The toothed member carries a single tooth 251 arranged to cooperate with the first satellite wheel 248 and rotate it on itself as it passes in front of it.
[0073] La rotation de la première roue satellite 248 entraîne une rotation du mobile des mois 238 en référence à la première planche 224, par coopération avec sa denture interne 245.  The rotation of the first satellite wheel 248 causes a rotation of the mobile of the month 238 with reference to the first plate 224, by cooperation with its internal toothing 245.
[0074] La rotation du mobile des mois 238 entraîne celle de la seconde roue satellite 249 par coopération de cette dernière avec la dent 244.  The rotation of the mobile of the months 238 causes that of the second satellite wheel 249 by cooperation of the latter with the tooth 244.
[0075] Une seconde planche intermédiaire 252 est rendue solidaire de la première planche 224 au moyen de vis 254, notamment pour maintenir assemblé l'ensemble qui vient d'être décrit.  A second intermediate board 252 is secured to the first board 224 by means of screws 254, in particular to maintain assembled all that has just been described.
[0076] En outre, la seconde planche 252 présente une surface de support 256 sur laquelle est agencé un second organe élastique 257, de correction bissextile, portant une troisième dent mobile 258.  In addition, the second board 252 has a support surface 256 on which is arranged a second elastic member 257, leap correction, carrying a third movable tooth 258.
[0077] Le second organe 257 comporte un bâti présentant une forme générale annulaire et comprenant des première et seconde portions 259, 260, élastiquement déformables, dont chacune est reliée à un côté de la troisième dent mobile 258.  The second member 257 comprises a frame having a generally annular shape and comprising first and second portions 259, 260, resiliently deformable, each of which is connected to one side of the third movable tooth 258.
[0078] Le bâti présente également un ergot 261 , ici sensiblement diamétralement opposée à la dent 258 et, destinée à coopérer avec une fente 262 ménagée dans la seconde planche 252 pour assurer le positionnement correct et le maintien du second organe 257 sur la seconde planche.  The frame also has a lug 261, here substantially diametrically opposed to the tooth 258 and intended to cooperate with a slot 262 formed in the second board 252 to ensure the correct positioning and maintenance of the second member 257 on the second board .
[0079] Bien entendu, l'homme du métier pourra mettre en œuvre toute autre forme adaptée pour le second organe élastique, en fonction de ses propres besoins, sans sortir du cadre de la présente invention.  Of course, the skilled person can implement any other form suitable for the second elastic member, according to its own needs, without departing from the scope of the present invention.
[0080] La troisième dent 258 est agencée dans une fente supplémentaire 264, ménagée dans la seconde planche, pour contribuer au maintien du second organe élastique sur la seconde planche et, pour assurer un guidage radial de la dent lorsqu'elle est déplacée entre une première position, escamotée, et une seconde position, extraite. The third tooth 258 is arranged in an additional slot 264, formed in the second board, to contribute to the maintenance of the second elastic member on the second board and, to ensure a radially guiding the tooth when moved between a first retracted position and a second retracted position.
[0081] U n mobile de correction comprenant une troisième planche 266 est assemblé sur la seconde planche 252, de manière à être libre de tourner par rapport à cette dernière, notamment pour assurer un maintien axial du second organe 257. A mobile correction comprising a third board 266 is assembled on the second board 252, so as to be free to rotate relative to the latter, in particular to ensure an axial retention of the second member 257.
[0082] La face interne de la troisième planche porte un pignon 268 coaxial à la planche. Ce pignon 268 est destiné à engrener avec la seconde roue satellite 249 pour induire une rotation de la troisième planche 266 relativement à la première planche 224.  The inner face of the third board carries a pinion 268 coaxial with the board. This pinion 268 is intended to mesh with the second satellite wheel 249 to induce a rotation of the third board 266 relative to the first board 224.
[0083] La face interne de la troisième planche porte également une seconde came 270 (visible en transparence), similaire à la première came 240 et, dont la périphérie présente un rayon externe variable. Plus précisément, la périphérie de la came 270 présente trois bossages 271 , en référence à un rayon de base, dont deux sont diamétralement opposés et le troisième est situé entre les deux, à 90 degrés. Une portion inactive 272 est diamétralement opposée au troisième bossage.  The inner face of the third board also carries a second cam 270 (visible in transparency), similar to the first cam 240 and whose periphery has a variable external radius. More specifically, the periphery of the cam 270 has three bosses 271, with reference to a base radius, two of which are diametrically opposed and the third is situated between the two, at 90 degrees. An inactive portion 272 is diametrically opposed to the third boss.
[0084] Un sautoir 274 coopère avec la denture 204 pour assurer le positionnement angulaire du mobile de programme 222, de manière conventionnelle.  A jumper 274 cooperates with the toothing 204 to ensure the angular positioning of the mobile program 222, in a conventional manner.
[0085] La figure 3 illustre certains détails de fonctionnement du mobile de programme 222 qui vient d'être décrite.  [0085] Figure 3 illustrates some details of operation of the program mobile 222 which has just been described.
[0086] Plus précisément, la figure 3 illustre la configuration de certains composants du dispositif de comptage selon la présente invention tels qu'ils se trouvent un 28 février. More specifically, Figure 3 illustrates the configuration of certain components of the counting device according to the present invention as they are a February 28.
[0087] La première des dents 206 du mobile de 24 heures 201 s'étendant sur le second niveau est située à portée du mobile de programme 222. Le mobile de 24 heures tourne dans le sens horaire sur l'illustration de la figure 3. The first of the teeth 206 of the mobile 24 hours 201 extending on the second level is located within range of the program mobile 222. The mobile 24 hours rotates clockwise in the illustration of Figure 3.
[0088] Dans le cas où l'année en cours est non bissextile, le mois de février compte 28 jours, ce qui implique que le mobile de programme 222 doit tourner de quatre pas pour ind iquer ensuite le prem ier jour du mois suivant. [0089] Dans ce cas, la troisième dent mobile 258 (non visible sur la figure 3) est dans sa position extraite, c'est-à-dire en position de coopérer avec la première dent 206 du mobile de 24 heures. [0088] In the case where the current year is non-leap year, the month of February has 28 days, which implies that the mobile program 222 must turn four steps to ind iquer then the first day of the following month. In this case, the third movable tooth 258 (not visible in Figure 3) is in its extracted position, that is to say in the position to cooperate with the first tooth 206 of the mobile 24 hours.
[0090] En effet, les bossages 271 de la seconde came 270 sont destinés à exercer une pression sur la troisième dent mobile 258, le dernier jour du mois de février des années non bissextiles, pour placer celle-ci dans sa position extraite. A chaque fin de mois de février des années bissextiles, la portion inactive 272 est disposée en regard de la troisième dent mobile pour permettre à cette dernière de se positionner dans sa position escamotée.  Indeed, the bosses 271 of the second cam 270 are intended to exert pressure on the third movable tooth 258, the last day of February non-leap years, to place it in its extracted position. At the end of February leap years, the inactive portion 272 is disposed opposite the third movable tooth to allow it to position itself in its retracted position.
[0091] Lorsque le mobile de 24 heures 201 est entraîné d'un premier pas par la roue des heures (par l'intermédiaire d'un mobile réducteur par exemple, ces éléments étant bien connus et non représentés), la première dent 206 entraîne le mobile de programme 222 d'un pas dans le sens anti-horaire, par l'intermédiaire de la troisième dent mobile 258. L'affichage du quantième passe de 28 à 29.  When the mobile 24 hours 201 is driven by a first step by the hour wheel (for example, by means of a reducing gear, these elements being well known and not shown), the first tooth 206 drives the mobile program 222 a step in the counterclockwise direction, through the third movable tooth 258. The date display is increased from 28 to 29.
[0092] La première came 240 est agencée de telle manière que son bossage double 242 est situé en regard des deux premières dents mobiles 228 et 229 pour les placer toutes deux dans leur position extraite (bien qu'elles soient représentées légèrement en retrait sur la figure 3 pour faciliter la compréhension du mécanisme).  The first cam 240 is arranged in such a way that its double boss 242 is located opposite the first two movable teeth 228 and 229 to place them both in their extracted position (although they are shown slightly recessed on the Figure 3 to facilitate understanding of the mechanism).
[0093] Ainsi, au pas suivant du mobile de 24 heures 201 , soit une heure plus tard, la seconde dent 206 du second niveau rencontre la première dent mobile 228 et entraîne une rotation supplémentaire d'un pas du mobile de programme 222. L'affichage du quantième passe alors du 29 au 30.  Thus, at the next step of the mobile 24 hours 201, one hour later, the second tooth 206 of the second level meets the first movable tooth 228 and causes an additional rotation of a step of the mobile program 222. L display of the date then changes from 29 to 30.
[0094] Au pas suivant du mobile de 24 heures 201 , la troisième dent 206 du second niveau rencontre la seconde dent mobile 229 et entraîne une rotation supplémentaire d'un pas d u mobi le de programme 222. L'affichage du quantième passe alors du 30 au 31.  At the next step of the mobile 24 hours 201, the third tooth 206 of the second level meets the second movable tooth 229 and causes an additional rotation of a step of the program mobi 212. The display of the date then passes the 30 to 31.
[0095] Au pas suivant du mobile de 24 heures 201 , la quatrième dent 208 s'étendant au troisième niveau rencontre une dent de la première denture 225 du mobile de programme et entraîne une rotation supplémentaire d'un pas de ce dernier. L'affichage du quantième passe alors du 31 au 1. [0096] Ensuite, les dents mobiles 228, 229 et 258 ne se trouvent plus en position d'engrener avec le mobile de 24 heures pendant au moins 28 jours. At the next step of the mobile 24 hours 201, the fourth tooth 208 extending at the third level meets a tooth of the first toothing 225 of the program mobile and causes an additional rotation of a step of the latter. The display of the date then changes from 31 to 1. Then, the movable teeth 228, 229 and 258 are no longer in position to mesh with the mobile 24 hours for at least 28 days.
[0097] Ainsi, lorsque le mobile de 24 heures 201 effectue un tour complet sur lui- même à partir de ce moment, seule la quatrième dent 208 s'étendant au troisième niveau rencontre une dent de la première denture 225 du mobile de programme 222 pour faire avancer ce dernier d'un pas.  Thus, when the 24-hour mobile 201 performs a complete turn on itself from this moment, only the fourth tooth 208 extending at the third level encounters a tooth of the first toothing 225 of the program mobile 222 to move this last one step.
[0098] Dans le cas où l'année en cours est bissextile, le mois de février compte 29 jours, ce qui implique que le mobile de programme 222 doit tourner de trois pas seulement pour indiquer ensuite le premier jour du mois suivant.  In the case where the current year is leap, the month of February has 29 days, which implies that the mobile program 222 must turn three steps only to indicate the first day of the following month.
[0099] Dans ce cas, la troisième dent mobile 258 est dans sa position escamotée, c'est-à-dire hors de portée de la première dent 206 du mobile de 24 heures, la portion inactive 272 de la came 270 étant située en regard de la troisième dent mobile 258. In this case, the third movable tooth 258 is in its retracted position, that is to say out of reach of the first tooth 206 of the 24-hour mobile, the inactive portion 272 of the cam 270 being located in look at the third movable tooth 258.
[00100] Ainsi, les trois premières dents 206 s'étendant au second niveau passent devant le mobile de programme 222 sans l'entraîner, tandis que la quatrième dent 208 s'étendant au troisième niveau entre en contact avec une dent de la première denture 225 pour faire tourner le mobile de programme d'un pas. L'affichage du quantième passe alors du 28 au 29.  Thus, the first three teeth 206 extending at the second level pass the mobile program 222 without driving, while the fourth tooth 208 extending at the third level comes into contact with a tooth of the first gear 225 to rotate the program mobile one step. The display of the date then changes from 28 to 29.
[00101 ] Le mobile de 24 heures 201 continue ensuite de tourner sur lui-même pendant 20 heures sans entrer en contact avec le mobile de programme The mobile 24 hours 201 then continues to turn on itself for 20 hours without contacting the mobile program
222. 222.
[00102] Au tour suivant du mobile de 24 heu res 201 , la première dent 206 s'étendant au second niveau rencontre la première dent mobile 228 et entraîne une rotation d'un pas du mobile de programme 222. L'affichage du quantième passe alors du 29 au 30.  On the next turn of the mobile 24 hours 201 res, the first tooth 206 extending at the second level meets the first movable tooth 228 and causes a rotation of a step of the mobile program 222. The display of the date passes then from the 29th to the 30th.
[00103] Au pas suivant du mobile de 24 heures 201 , soit une heure plus tard, la seconde dent 206 du second niveau rencontre la seconde dent mobile 229 et entraîne une rotation supplémentaire d'un pas du mobile de programme 222. L'affichage du quantième passe alors du 30 au 31 .  At the next step of the mobile 24 hours 201, one hour later, the second tooth 206 of the second level meets the second movable tooth 229 and causes an additional rotation of a step of the mobile program 222. The display The date then goes from 30 to 31.
[00104] Au pas suivant du mobile de 24 heures, la troisième dent 206 du second niveau passe en regard du mobile de programme 222 mais ne l'entraîne pas puisque la première denture 225 est située au troisième niveau, soit hors de portée de cette dent 206. L'affichage du quantième reste alors inchangé. [00104] At the next step of the mobile 24 hours, the third tooth 206 of the second level passes next to the program mobile 222 but does not lead to it since the first set of teeth 225 is located at the third level, ie out of reach of this tooth 206. The date display remains unchanged.
[00105] Au pas suivant du mobile de 24 heures 201 , la quatrième dent 208 s'étendant au troisième niveau rencontre une dent de la première denture 225 du mobile de programme et entraîne une rotation supplémentaire d'un pas de ce dernier. L'affichage du quantième passe alors du 31 au 1 .  At the next step of the mobile 24 hours 201, the fourth tooth 208 extending at the third level encounters a tooth of the first toothing 225 of the program mobile and causes an additional rotation of a step of the latter. The display of the date then changes from 31 to 1.
[00106] Dans le même temps, la rotation du mobile de programme 222 sur lui- même entraîne une rotation des deux roues satellites 248 et 249 autour de l'organe denté fixe 250, du fait que le doigt 246 est solidaire de la première planche 224 du mobile de programme 222.  At the same time, the rotation of the mobile program 222 on itself causes a rotation of the two planet wheels 248 and 249 around the fixed tooth member 250, because the finger 246 is integral with the first board 224 of the program mobile 222.
[00107] La denture de la première roue satellite 248 glisse sur la périphérie de l'organe denté 250, de manière similaire à une transmission du type croix de Malte, généralement mise en œuvre dans certains mécanismes de quantième.  The toothing of the first satellite wheel 248 slides on the periphery of the toothed member 250, similarly to a transmission of the Maltese cross type, generally implemented in certain date mechanisms.
[00108] Ainsi, la première roue satellite 248 tourne autour de l'organe denté 250 sans pouvoir tourner sur elle-même. Ce type de construction permet avantageusement de se passer de sautoirs pour assurer le positionnement angulaire de certaines roues du mécanisme. Thus, the first satellite wheel 248 rotates around the toothed member 250 without being able to turn on itself. This type of construction advantageously makes it possible to do without jumpers to ensure the angular positioning of certain wheels of the mechanism.
[00109] Cette liaison entre la première roue satellite 248 et l'organe denté 250 entraîne dans le même temps le verrouillage du mobile des mois 238, dont la denture 245 est en prise avec celle de la première roue satellite 248, en référence à la première planche 224. This connection between the first satellite wheel 248 and the toothed member 250 at the same time causes the locking of the mobile of the months 238, the toothing 245 is engaged with that of the first satellite wheel 248, with reference to the first board 224.
[001 10] Le mobile de programme 222 faisant un tour sur lui-même en un mois (soit en un nombre de jours variant entre 28 et 31 ), la première roue satellite 248 tourne de deux pas une fois par mois, en passant en regard de la dent 251 de l'organe denté fixe 250. Le rapport d'engrenage entre la première roue satellite 248 et le mobile des mois 238 est tel que ce dernier avance d'un douzième de tour, dans le sens anti-horaire sur la figure 3, à chaque fois que la première roue satellite tourne de deux pas. [001 10] The program mobile 222 taking a turn on itself in one month (or in a number of days between 28 and 31), the first satellite wheel 248 rotates two steps once a month, passing through 251 of the toothed fixed member 250. The gear ratio between the first satellite wheel 248 and the moving month 238 is such that the latter advances a twelfth of a turn, in the counterclockwise direction. Figure 3, each time the first satellite wheel rotates two steps.
[001 1 1 ] Le doigt 246 et la dent 251 de l'organe denté fixe 250 sont positionnés l'un relativement à l'autre de telle manière que la rotation du mobile des mois 238 intervient chaque mois avant que les dents mobiles ne parviennent à portée du mobile de 24 heures 201 . [001 12] Revenant à la configuration illustrée sur la figure 3, en relation avec la description qui précède, une fois que le mobile de programme a avancé jusqu'à ce que l'affichage du quantième indique le 1er du mois de mars, il continue de tourner d'un pas par jour jusqu'au 30 mars. Entretemps, la première roue satellite 248 passe en regard de la dent 251 et tourne de deux pas, soit un quart de tour ici, entraînant une rotation du mobile des mois 238 d'un douzième de tour dans le sens anti-horaire. [001 1 1] The finger 246 and the tooth 251 of the stationary toothed member 250 are positioned relative to each other in such a way that the rotation of the mobile of the months 238 occurs each month before the movable teeth arrive. within range of the 24 hours 201 mobile. [001 12] Returning to the configuration illustrated in Figure 3, in connection with the above description, once the mobile program has advanced until the display of the date indicates the 1 st of March, he continues to walk one step a day until March 30th. Meanwhile, the first satellite wheel 248 passes next to the tooth 251 and turns two steps, a quarter turn here, causing a rotation of the mobile of the month 238 of a twelfth of a turn in the counterclockwise direction.
[001 13] Après une telle rotation du mobile des mois 238, la portion inactive de la came 240 située à droite du bossage double 242 est positionnée en regard des première et seconde dents mobiles 228 et 229. Ces dernières prennent alors leur position escamotée sous l'effet des portions élastiques qui les relient au bâti du premier organe 227. Dans cette position, elles sont toutes deux hors de portée des dents du mobile de 24 heures 201. [001 13] After such a rotation of the mobile of the month 238, the inactive portion of the cam 240 to the right of the double boss 242 is positioned opposite the first and second movable teeth 228 and 229. The latter then take their retracted position under the effect of the elastic portions that connect them to the frame of the first member 227. In this position, they are both out of reach of the teeth of the 24-hour mobile 201.
[001 14] La troisième dent 258 est également escamotée dans cette configuration, comme cela ressortira d'explications ultérieures. [001 14] The third tooth 258 is also retracted in this configuration, as will be apparent from subsequent explanations.
[001 15] Ainsi, à la fin du mois de mars, celui-ci comptant 31 jours, seule la quatrième dent 208 située au troisième niveau peut engrener avec le mobile de programme 222 pour faire avancer ce dernier d'un pas. L'affichage du quantième passe alors du 31 (mars) au 1er (avril). [001 15] Thus, at the end of March, the latter having 31 days, only the fourth tooth 208 located at the third level can mesh with the program mobile 222 to advance the latter by one step. The date display will change from 31 (March) to 1 (April).
[001 16] Au tour suivant, le bossage simple 241 situé à droite de la portion inactive mentionnée ci-dessus vient se positionner en regard de la seconde dent mobile 229 pour la repousser vers sa position extraite. La première dent mobile 228 reste, elle, en position escamotée puisque toujours située en regard d'une portion de la came 240 de rayon réduit. Bien entendu, les rôles respectifs des première et seconde dents mobiles peuvent ici être inversés en fonction de la disposition des différents bossages sur la came 240, sans sortir du cadre de l'invention. [001 16] In the next turn, the simple boss 241 located to the right of the inactive portion mentioned above is positioned next to the second movable tooth 229 to push back to its extracted position. The first movable tooth 228 remains in the retracted position since it is always located opposite a portion of the cam 240 of reduced radius. Of course, the respective roles of the first and second movable teeth can here be reversed depending on the arrangement of the various bosses on the cam 240, without departing from the scope of the invention.
[001 17] Dans ce cas, le 30 (avril), la première dent 206 située au second niveau coopère avec la seconde dent mobile 229 pour faire avancer le mobile de programme 222 d'un pas. L'affichage du quantième passe alors du 30 auIn this case, on April 30, the first tooth 206 located at the second level cooperates with the second movable tooth 229 to advance the program mobile 222 by one step. The display of the date then changes from 30 to
31. Les deux dents 206 suivantes passent devant le mobile de programme sans l'entraîner, au cours des deux heures qui suivent, puisque ce dernier ne présente plus de dent située dans ce niveau. Enfin, la quatrième dent 208, s'étendant dans le troisième niveau, rencontre une dent de la denture 225, une heure plus tard, pour entraîner le mobile de programme d'un pas supplémentaire. L'affichage du quantième passe alors du 31 (avril) au 1 er (mai). 31. The two following 206 teeth pass in front of the program wheel without driving it, during the two following hours, since the latter no longer has a tooth located in this level. Finally, the fourth tooth 208, extending in the third level, encounters a tooth of the toothing 225, one hour later, to drive the program wheel by one additional step. The display of the pass then 31 (April) to 1 (May).
[001 18] On comprend que le mobile des mois 238 fait un tour complet par rapport à la première planche 224 en une année. Les deux portions inactives de la came 240 correspondent aux mois de juillet-août et décembre-janvier, chacun de ces mois comptant 31 jours. [001 18] It is understood that the mobile of the month 238 makes a complete turn compared to the first board 224 in one year. The two inactive portions of cam 240 correspond to the months of July-August and December-January, each month having 31 days.
[001 19] Dans le même temps, le mobile des mois 238 fait également un tour complet en un an par rapport à la seconde roue satellite 249 qui est pivotée sur la tige 246, solidaire de la première planche 224. La majeure partie du temps, au cours d'une année, la denture de la seconde roue satellite 249 glisse sur la périphérie interne de la came 240 pour verrouiller la roue satellite par une liaison de type croix de Malte, comme souligné plus haut en relation avec la première roue satellite 248 et l'organe denté fixe 250. [001 19] At the same time, the mobile of the month 238 also makes a complete turn in one year compared to the second satellite wheel 249 which is pivoted on the rod 246, integral with the first board 224. Most of the time during a year, the toothing of the second satellite wheel 249 slides on the inner periphery of the cam 240 to lock the satellite wheel by a Maltese cross type connection, as outlined above in relation to the first satellite wheel 248 and the fixed toothed member 250.
[00120] Une fois par an, la dent 244 du mobile des mois engrène avec la seconde roue satellite 249 et la fait tourner de deux pas, soit un quart de tour ici.  [00120] Once a year, the tooth 244 of the moving month meshes with the second satellite wheel 249 and rotates two steps, a quarter turn here.
[00121 ] Le rapport d'engrenage entre la seconde roue satellite 249 et le pignon 268 de la troisième planche 266 est tel que cette dernière effectue une rotation d'un quart de tour lorsque la seconde roue satellite 249 tourne d'un quart de tour, soit une fois par année.  The gear ratio between the second planet wheel 249 and the pinion 268 of the third plate 266 is such that the latter rotates a quarter turn when the second satellite wheel 249 rotates a quarter turn. once a year.
[00122] Ainsi, trois années de suite, un bossage 271 de la came 270 est situé en regard de la troisième dent mobile 258 pour la positionner dans sa position extraite. Une année (bissextile) sur quatre, la portion inactive 272 de la came 270 est située en regard de la troisième dent mobile 258 pour la laisser prendre sa position escamotée, sous l'effet des forces exercées par les portions élastiques 259 et 260.  Thus, three years in a row, a boss 271 of the cam 270 is located opposite the third movable tooth 258 to position it in its extracted position. One year (leap) out of four, the inactive portion 272 of the cam 270 is located opposite the third movable tooth 258 to let it take its retracted position, under the effect of the forces exerted by the elastic portions 259 and 260.
[00123] A présent que le dispositif de comptage selon la présente invention a été décrit en détail, notamment comment il permet de prendre en compte la durée des différents mois de l'année et des cycles des années bissextiles, les figures 4 à 6 vont permettre d'exposer comment l'information correspondante est transmise aux différents organes d'affichage du calendrier perpétuel. Now that the counting device according to the present invention has been described in detail, including how it allows to take into account the duration of the different months of the year and leap years cycles, Figures 4 to 6 will to expose how information Correspondence is transmitted to the different display units of the perpetual calendar.
[00124] La figure 4 représente une vue en perspective des éléments déjà illustrés sur la figure 1. En particulier, les composants du rouage d'affichage des jours de la semaine 400 sont plus particulièrement visibles sur cette figure.  FIG. 4 represents a perspective view of the elements already illustrated in FIG. 1. In particular, the components of the display gear of the days of the week 400 are more particularly visible in this figure.
[00125] La dent 21 1 de la planche 210 du mobile de 24 heures est agencée pour entraîner un mobile d'entrée 401 du rouage des jours de la semaine à chaque tour complet du mobile de 24 heures sur lui-même.  The tooth 21 1 of the board 210 of the 24-hour mobile is arranged to drive a 401 input mobile of the wheels of the week at each complete turn of the mobile 24 hours on itself.
[00126] Le mobile d'entrée 401 comporte un renvoi 402, agencé pour coopérer avec la dent 21 1 et, solidaire d'un pignon 404 engrenant avec une première roue 406 d'un mobile à friction 407, dont un exemple de structure préférée sera décrit plus loin en relation avec la figure 5.  The mobile input 401 comprises a reference 402, arranged to cooperate with the tooth 21 1 and secured to a pinion 404 meshing with a first wheel 406 of a friction wheel 407, including an example of a preferred structure will be described later in connection with Figure 5.
[00127] La liaison entre le renvoi 402 et la planche 210 du mobile de 24 heures 201 est ici encore de type croix de Malte, c'est-à-dire que la denture du renvoi 402 glisse sur la périphérie de la planche 210 sauf lorsque la dent The link between the reference 402 and the board 210 of the 24-hour mobile 201 is here again of the Maltese cross type, that is to say that the toothing of the reference 402 slides on the periphery of the board 210 except when the tooth
21 1 le fait pivoter, une fois par jour. 21 1 rotates it once a day.
[00128] La rotation de la première roue 406 entraîne ici celle d'une seconde roue 408 du mobile à friction. Cette dernière est en prise avec un pignon 410 d'un mobile de démultiplication dont la roue 412 est agencée en prise avec la denture du disque 3 d'affichage des jours de la semaine.  The rotation of the first wheel 406 here causes that of a second wheel 408 of the friction wheel. The latter is engaged with a pinion 410 of a reduction gear wheel whose wheel 412 is arranged in engagement with the toothing of the display disc 3 days of the week.
[00129] Ainsi, chaque jour, lorsque le mobile de 24 heures 201 effectue un tour sur lui-même, il entraîne l'avancement d'un pas du guichet 4 d'affichage des jours de la semaine.  Thus, each day, when the 24-hour mobile 201 performs a turn on itself, it causes the advancement of a step of the window 4 display days of the week.
[00130] On notera que l'entraînement du rouage d'affichage des jours de la semaine est réalisé directement à partir du mobile de 24 heures, c'est-à- dire sans passer par le mobile de programme 222, dans la mesure où la durée des mois n'intervient pas sur le rythme de leur changement.  It will be noted that the training of the display gear of the days of the week is performed directly from the mobile 24 hours, that is to say without going through the mobile program 222, to the extent that the duration of the months does not affect the rhythm of their change.
[00131] Un sautoir 413 est agencé pour assurer le bon positionnement de la roue 412 du mobile de démultiplication.  A jumper 413 is arranged to ensure the proper positioning of the wheel 412 of the mobile gear.
[00132] Un mécanisme de correction de l'affichage des jours de la semaine est prévu de manière à agir directement sur le rouage 400. A correction mechanism of the display of the days of the week is provided so as to act directly on the wheel 400.
[00133] Ce mécanisme de correction comprend un levier de commande 414 destiné à être monté pivotant sur un élément de bâti du mouvement horloger correspondant au moyen d'un arbre (non représenté) coopérant avec un trou 416 du levier. Un poussoir non visible est destiné à agir sur une surface de réception 418 pour faire pivoter le levier dans le sens antihoraire sur la figure 4. This correction mechanism comprises a control lever 414 intended to be pivotally mounted on a frame element of the movement. watchmaker corresponding by means of a shaft (not shown) cooperating with a hole 416 of the lever. A non-visible pusher is adapted to act on a receiving surface 418 to pivot the lever counterclockwise in FIG. 4.
[00134] Le levier 414 porte une lame ressort 420 adossée contre un bec 422 à l'extrémité libre du levier. The lever 414 carries a spring blade 420 backed against a spout 422 at the free end of the lever.
[00135] Le levier est agencé de telle manière que, lorsqu'il pivote, il exerce une pression sur une étoile 423 à douze branches portée par un mobile de correction des jours 424, par l'intermédiaire de la lame ressort 420, pour la faire tourner d'un pas dans le sens de rotation horaire. The lever is arranged in such a way that, when it pivots, it exerts a pressure on a star 423 with twelve branches carried by a correction mobile of the days 424, by means of the leaf spring 420, for the rotate one step in the clockwise direction.
[00136] Le mobile de correction des jours comprend une roue 426 présentant une liaison cinématique avec la seconde roue 408 du mobile à friction 407, par l'intermédiaire d'un renvoi 428. De ce fait, chaque pression exercée sur le levier de commande 414 a pour effet de faire avancer le d isque 3 d'affichage des jours de la semaine d'un pas.  The correction mobile days includes a wheel 426 having a kinematic connection with the second wheel 408 of the friction wheel 407, through a reference 428. Therefore, each pressure exerted on the control lever 414 has the effect of advancing step 3 of displaying days of the week by one step.
[00137] Il convient de noter que le mobile d'entrée 401 est maintenu dans une position angulaire fixe par la coopération du renvoi 402 avec la périphérie de la planche 210. Ainsi, pour permettre une rotation de la seconde roue 408 du mobile de friction 407 sans entraîner systématiquement une rotation de la première roue 406, un mécanisme de friction est prévu entre ces deux roues.  It should be noted that the input mobile 401 is held in a fixed angular position by the cooperation of the reference 402 with the periphery of the board 210. Thus, to allow rotation of the second wheel 408 of the friction wheel 407 without systematically rotating the first wheel 406, a friction mechanism is provided between these two wheels.
[00138] Inversement, lors de l'entraînement normal de l'affichage des jours de la semaine, le mobile de correction des jours 424 est également entraîné dans le sens de rotation horaire sur la figure 4. Toutefois, dans ce cas, la lame ressort 420 est agencée pour se déformer de manière élastique pour permettre à la branche concernée de l'étoile 423 de passer devant elle.  Conversely, during the normal training of the display of the days of the week, the correction mobile 424 days is also driven in the clockwise rotation direction in FIG. 4. However, in this case, the blade spring 420 is arranged to elastically deform to allow the relevant branch of star 423 to pass in front of it.
[00139] La figure 5 illustre un mode de réalisation préféré, à titre non limitatif, d'un tel mécanisme de friction, dans une vue en perspective éclatée du mobile de friction 407.  [00139] Figure 5 illustrates a preferred embodiment, without limitation, of such a friction mechanism, in an exploded perspective view of the friction wheel 407.
[00140] Les première et seconde roues 406, 408 du mobile à friction sont accouplées par l'intermédiaire d'une couronne 430, sensiblement en forme d'étoile et solidaire en rotation de la première roue 406, et d'un ressort 432, solidaire de la seconde roue 408 et remplissant une fonction similaire à celle d'un sautoir. [00140] The first and second wheels 406, 408 of the friction wheel are coupled via a ring 430, substantially star-shaped and rotationally fixed to the first wheel 406, and a spring 432, integral with the second wheel 408 and performing a function similar to that of a jumper.
[00141] Le ressort 432 présente une forme générale circulaire et comporte quatre bras 434 en forme de S portant, deux à deux et entre eux, des becs 436 destinés à coopérer avec la couronne 430 pour définir des positions angulaires relatives stables entre les deux roues 406 et 408.  The spring 432 has a generally circular shape and comprises four S-shaped arms 434 carrying, two by two and between them, nozzles 436 intended to cooperate with the crown 430 to define stable relative angular positions between the two wheels. 406 and 408.
[00142] Chacun des becs 436 est porté par un bâti 438 portant un ergot 440 destiné à coopérer avec une fente radiale 442 ménagée dans la seconde roue 408, pour assurer un guidage radial des becs 436 tout en maintenant le positionnement angulaire du ressort par rapport à la seconde roue 408.  Each of the nozzles 436 is carried by a frame 438 carrying a lug 440 intended to cooperate with a radial slot 442 formed in the second wheel 408, to ensure radial guidance of the nozzles 436 while maintaining the angular positioning of the spring relative to at the second wheel 408.
[00143] Grâce à cette structure, lors d u fonctionnement normal, lorsque la première roue 406 est entraînée à partir du mobile de 24 heures 201 , la couronne 430 exerce une force sur les becs 436 du ressort 432 pour entraîner ce dernier en rotation et entraîner la seconde roue 408 du même coup. L'affichage du jour de la semaine est alors modifié.  With this structure, during normal operation, when the first wheel 406 is driven from the mobile 24 hours 201, the crown 430 exerts a force on the nozzles 436 of the spring 432 to drive the latter in rotation and cause the second wheel 408 at the same time. The day of the week display is changed.
[00144] En mode de correction, c'est la seconde roue 408 qui est entraînée, comme conséquence d'une action d'un utilisateur sur le levier de commande 414, ce qui entraîne également une rotation du disque d'affichage des jours de la semaine. Toutefois, dans ce cas, la première roue 406 est verrouillée en rotation par la liaison de type croix de Malte réalisée entre la planche 210 et le mobile d'entrée 401. Aussi, lorsque la seconde roue 408 tourne, elle provoque une déformation des bras 434 du ressort 432 pour permettre aux becs 436 de franchir les dents de la couronne 430. Dans ce cas, la seconde roue 408 tourne sur elle-même tandis que la première roue 406 reste immobile.  In the correction mode, it is the second wheel 408 which is driven, as a consequence of an action of a user on the control lever 414, which also causes a rotation of the display disc of the days of the week. However, in this case, the first wheel 406 is locked in rotation by the Maltese cross type connection made between the board 210 and the input mobile 401. Also, when the second wheel 408 rotates, it causes a deformation of the arms 434 of the spring 432 to allow the nozzles 436 to cross the teeth of the crown 430. In this case, the second wheel 408 rotates on itself while the first wheel 406 remains stationary.
[00145] Bien entendu, la présence du mobile à friction 407 n'est pas absolument nécessaire pour mettre en œuvre le mécanisme selon la présente invention.  Of course, the presence of the friction wheel 407 is not absolutely necessary to implement the mechanism according to the present invention.
[00146] On peut en effet prévoir, en alternative, que le mobile d'entrée 401 est agencé en prise directe avec le mobile de correction des jours 424, ce dernier étant en prise avec le disque 3 d'affichage des jours de la semaine par l'intermédiaire du pignon 410 et de la roue 412 du mobile de démultiplication. Dans ce cas, toutefois, la liaison de type croix de Malte, telle que décrite plus haut entre la planche 210 du mobile de 24 heures et le mobile d'entrée 401 , doit être supprimée pour permettre une correction du jour de la semaine, via le levier de commande 414, sans incidence sur le fonctionnement du mécanisme de calendrier. En outre, on peut avantageusement prévoir que le mobile de démultiplication porte une étoile à 7 branches agencée pour coopérer avec un sautoir de positionnement, pour assurer le bon positionnement du disque 3 d'affichage des jours de la semaine. [00146] It can indeed provide, alternatively, that the mobile input 401 is arranged in direct contact with the correction mobile days 424, the latter being engaged with the display disc 3 days of the week through the pinion 410 and the wheel 412 of the mobile gear. In this case, however, the Maltese cross connection, as described above between the board 210 of the 24-hour mobile and the mobile input 401, must be removed to allow correction of the day of the week, via the control lever 414, without affecting the operation of the mechanism of calendar. In addition, it can advantageously be provided that the reduction mobile carries a star with 7 branches arranged to cooperate with a positioning jumper, to ensure the correct positioning of the display disc 3 days of the week.
[00147] Revenant à la figure 4, il convient de relever que les informations autres que le jour de la semaine peuvent être corrigées préférablement de manière distincte par rapport à ce qui vient d'être décrit. [00147] Returning to Figure 4, it should be noted that the information other than the day of the week can be corrected preferably distinctly from what has just been described.
[00148] En effet, selon le présent mode de réalisation préféré illustré, il est prévu que l'information relative au quantième peut être corrigée par action sur la tige de remontoir 5, via un mécanisme de correction du quantième adapté. Indeed, according to the present preferred embodiment illustrated, it is expected that the date-related information can be corrected by action on the winding stem 5, via a suitable date correction mechanism.
[00149] Plus précisément, ce dernier comporte un pignon baladeur 450 monté sur une bascule 452 susceptible d'être déplacée entre des première et seconde positions angulaires en fonction des positions axiales de la tige de remontoir. Lorsque, partant de la configuration de la figure 4, la tige de remontoir 5 est tirée vers l'extérieur du mouvement, la bascule 452 pivote dans le sens horaire pour placer le pignon baladeur 450 en prise avec la denture du disque 1 d'affichage du quantième. Dans le même temps, le pignon baladeur est également placé en prise avec une roue de correction 454 présentant une liaison cinématique avec un pignon coulant 456, solidaire en rotation de la tige de remontoir, de manière conventionnelle. More specifically, the latter comprises a sliding pinion 450 mounted on a rocker 452 can be moved between first and second angular positions depending on the axial positions of the winding stem. When, starting from the configuration of FIG. 4, the winding stem 5 is pulled outwards from the movement, the rocker 452 pivots clockwise to place the sliding pinion 450 in engagement with the toothing of the display disc 1 of the date. At the same time, the sliding pinion is also placed in engagement with a correction wheel 454 having a kinematic connection with a sliding pinion 456, integral in rotation with the winding stem, in a conventional manner.
[00150] Ainsi, dans cette position tirée de la tige de remontoir 5, une rotation de cette dernière entraîne une rotation du disque d'affichage du quantième 1 dans un sens ou dans l'autre, par l'intermédiaire notamment de la roue de correction 454 et du pignon baladeur 450. [00150] Thus, in this position taken from the winding stem 5, a rotation of the latter causes a rotation of the display disc of the date 1 in one direction or the other, particularly through the wheel of correction 454 and the sliding gear 450.
[00151] Comme cela va ressortir de la description qui va suivre de la figure 6, la rotation du disque d'affichage du quantième 1 va également entraîner celle du disque d'affichage des mois 2. [00152] La figure 6 représente une vue de face simplifiée et en transparence partielle illustrant la transmission prévue entre le disque d'affichage du quantième 1 et le disque d'affichage des mois 2. As will be apparent from the following description of FIG. 6, the rotation of the display disc of the date 1 will also cause that of the display disc of the months 2. [00152] Figure 6 shows a simplified front view and partial transparency illustrating the transmission provided between the date display disc 1 and the display disc months 2.
[00153] Le disque d'affichage du quantième 1 porte un anneau 601 d'entraînement des mois, visible en transparence sous le disque 1 sur la figure 6. Cet anneau 601 coopère avec le pignon 602 d'un mobile de démultiplication 604 sous la forme d'une liaison de type croix de Malte tel que décrit plus haut. Il présente en effet une périphérie de rayon constant telle que le pignon ne peut tourner la plupart du temps, ses dents glissant sur la périphérie de l'anneau.  The display disk of the date 1 carries a ring 601 driving months, visible in transparency under the disk 1 in Figure 6. This ring 601 cooperates with the pinion 602 of a mobile gear 604 under the form of a Maltese cross type as described above. It has indeed a periphery of constant radius such that the pinion can rotate most of the time, its teeth sliding on the periphery of the ring.
[00154] Ce dernier présente également deux dents 606 et 608 destinées à assurer l'entraînement du pignon 602 dans le sens de rotation anti-horaire de deux pas par mois, à titre illustratif non limitatif.  The latter also has two teeth 606 and 608 for driving the pinion 602 in the anti-clockwise rotation of two steps per month, by way of non-limiting illustration.
[00155] Le mobile de démultiplication comporte en outre une roue 610 solidaire du pignon 602 en rotation et agencée en prise avec le disque d'affichage des mois 2. Ainsi, ce dernier est entraîné de deux pas une fois par mois, soit à chaque fois que le disque d'affichage du quantième 1 a effectué un tour complet sur lui-même.  The reduction gear further comprises a wheel 610 integral with the gear 602 in rotation and arranged in engagement with the display disc of the months 2. Thus, the latter is driven two steps once a month, or at each time that the display disc of the date 1 has performed a complete turn on itself.
[00156] La position angulaire du mobile de démultiplication 604 est en outre renforcée ici par un sautoir 612 optionnel.  The angular position of the reduction gear 604 is further enhanced here by an optional jumper 612.
[00157] En référence à la figure 4, il ressort également que la roue 610 est en prise avec un renvoi 701 constituant le point d'entrée du rouage des années bissextiles 700 qui ne sera pas décrit en détail. En effet, ce rouage comporte un nombre de mobiles adapté pour permettre la démultiplication de l'information relative au changement de mois jusqu'à une indication des années bissextiles qui s'étalent sur un cycle de 48 mois.  Referring to Figure 4, it also appears that the wheel 610 is engaged with a reference 701 constituting the entry point of the cog in leap years 700 which will not be described in detail. Indeed, this wheel has a number of mobile adapted to allow the multiplication of information relating to the change of months to an indication of leap years that spanned a cycle of 48 months.
[00158] On notera que la construction qui vient d'être décrite permet avantageusement de réaliser un ajustement dans les deux sens de la valeur du quantième qui est affichée, voire de celle du mois et de celle de l'année bissextile, pa r act io n su r l a tige d e com m a n d e 5 et par l'intermédiaire du mobile de programme 222.  It will be noted that the construction which has just been described advantageously makes it possible to achieve an adjustment in both directions of the value of the calendar that is displayed, or even that of the month and that of the leap year, par It is on the control rod 5 and via the program mobile 222.
[00159] Les figures 7 et 8 illustrent des vues partielles d'un mouvement horloger selon un second mode de réalisation préféré de la présente invention. [00160] Les composants inchangés par rapport au premier mode de réalisation qui vient d'être décrit portent les mêmes références numériques pour faciliter la compréhension du mécanisme selon le second mode de réalisation. [00159] Figures 7 and 8 illustrate partial views of a watch movement according to a second preferred embodiment of the present invention. The unchanged components compared to the first embodiment which has just been described bear the same numerical references to facilitate understanding of the mechanism according to the second embodiment.
[00161 ] Le mobile de 24 heures 201 est inchangé en référence au premier mode de réalisation. Il est destiné à assurer l'entraînement d'u n mobile de programme 522 de telle manière que le nombre de jours des différents mois est pris en compte pour commander l'affichage du calendrier, de manière similaire à ce qui a été décrit en relation avec le premier mode de réalisation.  The 24-hour mobile 201 is unchanged with reference to the first embodiment. It is intended to train a mobile program 522 in such a way that the number of days of the different months is taken into account to control the display of the calendar, similarly to what has been described in relation with the first embodiment.
[00162] Le mobile de programme 522 comporte une première planche 524 présentant une première denture 525 de 31 dents. The program mobile 522 comprises a first board 524 having a first gear 525 of 31 teeth.
[00163] La première planche présente une première surface de support 526 sur laquelle est agencé un premier organe élastique 527 associé à des première et seconde dents mobiles 528 et 529 de correction des mois courts, de manière à agir sur elles et les maintenir dans une configuration escamotée. The first board has a first support surface 526 on which is arranged a first elastic member 527 associated with first and second movable teeth 528 and 529 correction of short months, so as to act on them and maintain them in a retracted configuration.
[00164] L'organe élastique 527 présente la forme générale d'un anneau ouvert comprenant un bâti 530, destiné à être assemblé à la première planche 524 et, présentant deux bras en formes de portion de cercle dont l'extrémité libre de chacu n est associée à l'une des dents mobiles, en étant logée dans une fente adaptée ménagée dans la dent mobile correspondante.  [00164] The elastic member 527 has the general shape of an open ring comprising a frame 530, intended to be assembled to the first board 524 and having two arms in the form of a portion of a circle whose free end of each is associated with one of the movable teeth, being housed in a fitted slot in the corresponding movable tooth.
[00165] Le bâti 530, ici sensiblement diamétralement opposé aux dents 528, 529, présente deux trous destinés à coopérer avec des doigts 532, portés par la première planche 524, pour assurer le positionnement correct et le maintien de l'organe élastique 527 sur la première planche.  The frame 530, here substantially diametrically opposed to the teeth 528, 529, has two holes intended to cooperate with the fingers 532, carried by the first board 524, to ensure the correct positioning and maintenance of the elastic member 527 on the first board.
[00166] De même que dans le premier mode de réalisation, il est possible de prévoir, en alternative, que l'organe élastique est réalisé en deux parties sensiblement symétriques, sans sortir du cadre de l'invention. As in the first embodiment, it is possible to provide, alternatively, that the elastic member is made in two substantially symmetrical parts, without departing from the scope of the invention.
[00167] Chacune des dents 528, 529 est agencée dans une fente 534, ménagée dans la première planche, pour assurer un guidage radial des dents lorsqu'elles sont déplacées entre une première position, escamotée, et une seconde position, extraite. [00168] La première planche présente un logement annulaire 536 destiné à loger un mobile des mois 538. Each of the teeth 528, 529 is arranged in a slot 534, formed in the first board, to provide radial guidance of the teeth when they are moved between a first position, retracted, and a second position, extracted. The first board has an annular housing 536 for housing a mobile 538 months.
[00169] Le mobile des mois 538 présente la forme générale d'une couronne à deux niveaux. The mobile 538 months has the general shape of a two-level crown.
[00170] Un premier niveau, destiné à être placé dans le logement 536, remplit la fonction d'une came 540 dont la périphérie présente un rayon externe variable. Plus précisément, la périphérie de la came 540 présente cinq portions inactives, de même rayon, séparées les unes des autres par quatre bossages simples 541 , associés aux mois d'avril, juin, septembre et novembre, et un bossage double 542, associé au mois de février. On notera que deux portions inactives, associées respectivement aux mois de juillet-août et décembre-janvier, présentent une longueur double par rapport aux trois autres. La fonction de la came 540 est similaire à celle de la came 240 décrite précédemment, en relation avec le premier mode de réalisation. A first level, intended to be placed in the housing 536, fulfills the function of a cam 540 whose periphery has a variable external radius. More specifically, the periphery of the cam 540 has five inactive portions, of the same radius, separated from each other by four simple bosses 541, associated with the months of April, June, September and November, and a double boss 542 associated with the February. It will be noted that two inactive portions, associated respectively with the months of July-August and December-January, have a double length compared to the three others. The function of the cam 540 is similar to that of the cam 240 described above, in connection with the first embodiment.
[00171 ] La périphérie de la came 540 présente une dent 544 agencée en saillie et dont la fonction sera également exposée ultérieurement.  The periphery of the cam 540 has a tooth 544 arranged projecting and whose function will also be explained later.
[00172] Le second niveau du mobile des mois 538 comporte une denture interne 545. The second level of the mobile of the months 538 has an internal toothing 545.
[00173] La première planche 524 comprend également des prem ier et second doigts 546, 547 destinés à servir de support, respectivement, pour des première et seconde roues satellites 548 et 549. The first board 524 also includes first and second fingers 546, 547 intended to serve as a support, respectively, for first and second planet wheels 548 and 549.
[00174] Par ailleurs, u n organe denté 550, fixe, est agencé au centre de la première planche 524, celui-ci étant assemblé à un élément de bâti du mouvement horloger non illustré. L'organe denté porte une dent uniqueFurthermore, a fixed toothed member 550 is arranged in the center of the first board 524, the latter being assembled to a frame member of the non-illustrated watch movement. The toothed organ carries a single tooth
551 agencée pour coopérer avec la première roue satellite 548 et la faire tourner sur elle-même lorsqu'elle passe devant lui. 551 arranged to cooperate with the first satellite wheel 548 and rotate it on itself as it passes in front of him.
[00175] La rotation de la première roue satellite 548 entraîne une rotation du mobile des mois 538 en référence à la première planche 524, par coopération avec sa denture interne 545. The rotation of the first satellite wheel 548 causes a rotation of the mobile 538 months with reference to the first board 524, by cooperation with its internal toothing 545.
[00176] La rotation du mobile des mois 538 entraîne celle de la seconde roue satellite 549 par coopération de cette dernière avec la dent 544. Plus précisément, la seconde roue satellite 549 comprend avantageusement une croix de Malte 553 (distinguable en transparence) qui coopère avec le fond de la denture 545 pour verrouiller la seconde roue 549 tant que la dent 544 ne s'engage pas dans la croix de Malte 553 pour la faire tourner. The rotation of the mobile 538 months causes that of the second satellite wheel 549 by cooperation of the latter with the tooth 544. More specifically, the second satellite wheel 549 advantageously comprises a Maltese cross 553 (distinguishable in transparency) which cooperates with the bottom of the toothing 545 to lock the second wheel 549 as long as the tooth 544 does not engage in the Maltese cross 553 to rotate it.
[00177] Une seconde planche intermédiaire 552 est rendue solidaire de la première planche 524 au moyen de vis 554, notamment pour maintenir assemblé l'ensemble qui vient d'être décrit.  A second intermediate board 552 is secured to the first board 524 by means of screws 554, in particular to maintain assembled all that has just been described.
[00178] En outre, la seconde planche 552 présente une surface de support 556 sur laquelle est agencé un second organe élastique 557, agencé pour agir sur une troisième dent mobile 558 de correction bissextile.  In addition, the second board 552 has a support surface 556 on which is arranged a second elastic member 557, arranged to act on a third movable tooth 558 leap correction.
[00179] Le second organe élastique 557 comporte un bâti 559 à partir duquel s'étend un doigt élastique 560, sensiblement en forme de portion de cercle et, dont l'extrémité libre est logée dans une fente adaptée de la troisième dent mobile 558, pour maintenir cette dernière dans une configuration escamotée. The second elastic member 557 comprises a frame 559 from which extends an elastic finger 560, substantially in the form of a portion of a circle and whose free end is housed in a slot adapted to the third movable tooth 558, to keep the latter in a retracted configuration.
[00180] Le bâti présente également des trous 561 destinés à coopérer avec des doigts 562 ménagés sur la seconde planche 552 pour assurer le positionnement correct et le maintien du second organe élastique 557 sur la seconde planche. The frame also has holes 561 for cooperating with fingers 562 formed on the second board 552 to ensure the correct positioning and maintenance of the second elastic member 557 on the second board.
[00181 ] La troisième dent 558 est agencée dans une fente supplémentaire 564, ménagée dans la seconde planche, pour assurer un guidage radial de la dent lorsqu'elle est déplacée entre une première position, escamotée, et une seconde position, extraite.  The third tooth 558 is arranged in an additional slot 564, formed in the second board, to ensure radial guidance of the tooth when moved between a first position, retracted, and a second position, extracted.
[00182] Un mobile de correction 566 est supporté par la seconde planche 552, de manière à être libre de tourner par rapport à cette dernière. A correction mobile 566 is supported by the second board 552, so as to be free to rotate relative thereto.
[00183] Un premier niveau du mobile de correction 566 comprend une dentureA first level of the correction mobile 566 includes a set of teeth
568 destinée à engrener avec la seconde roue satellite 549 pour induire une rotation du mobi le de correction 566 relativement à la première planche 524. 568 for meshing with the second satellite wheel 549 to induce rotation of the correction vehicle 566 relative to the first board 524.
[00184] Un second niveau du mobile de correction 566 comprend une seconde came 570, similaire à la première came 540 et, dont la périphérie présente un rayon externe variable. Plus précisément, la périphérie de la came 570 présente six bossages 571 , en référence à un rayon de base, diamétralement opposés deux à deux et agencés de telle manière que deux portions inactives 572, diamétralement opposées l'une de l'autre, sont prévues pour définir deux séries de trois bossages successifs. A second level of the correction mobile 566 comprises a second cam 570, similar to the first cam 540, and whose periphery has a variable external radius. More specifically, the periphery of the cam 570 has six bosses 571, with reference to a base radius, diametrically opposed in pairs and arranged in such a way that two inactive portions 572, diametrically opposite one another, are provided to define two series of three successive bosses.
[00185] Un couvercle de fermeture 574 est prévu pour maintenir l'ensemble assemblé, en étant rendu solidaire de la première planche 524 au moyen des vis 554.  A closure cover 574 is provided to hold the assembled assembly, being secured to the first board 524 by means of the screws 554.
[00186] La figure 8 représente une vue de dessus illustrant la nature de la coopération intervenant entre certains des composants qui viennent d'être décrits, de manière similaire à la vue de la figure 3 pour le premier mode de réalisation.  [00186] Figure 8 shows a top view illustrating the nature of the cooperation between some of the components just described, similar to the view of Figure 3 for the first embodiment.
[00187] Globalement, le fonctionnement du mobile de programme 522 représenté sur les figures 7 et 8 ne sera pas décrit en détail dans la mesure où il est similaire à celui du mobi le de programme 222 du premier mode de réalisation. [00187] Overall, the operation of the program mobile 522 shown in FIGS. 7 and 8 will not be described in detail to the extent that it is similar to that of the program bus 222 of the first embodiment.
[00188] On notera toutefois que la seconde came 570 présente ici des cycles de 8 ans en référence à la seconde planche 552, à titre illustratif non limitatif, alors que le mécanisme selon le premier mode de réalisation est agencé de telle manière que la came 270 présente des cycles de 4 ans en référence à la seconde planche 252.  However, it will be noted that the second cam 570 here has cycles of 8 years with reference to the second plate 552, by way of non-limiting illustration, while the mechanism according to the first embodiment is arranged in such a way that the cam 270 presents 4-year cycles with reference to the second board 252.
[00189] La description qui précède s'attache à décrire un mode de réalisation particulier à titre d'illustration non limitative et, l'invention n'est pas limitée à la mise en œuvre de certaines caractéristiques particulières qui viennent d'être décrites, comme par exemple l'application du dispositif de comptage à la mise en œuvre d'un calendrier perpétuel. En effet, comme mentionné précédemment, ce dispositif de comptage est également adapté à la mise en œuvre d'un calendrier annuel sans sortir du cadre de la présente invention, voire un calendrier simple ne prenant en compte que les mois de 30 et de 31 jours. The foregoing description attempts to describe a particular embodiment by way of non-limiting illustration and, the invention is not limited to the implementation of certain particular features which have just been described, as for example the application of the counting device to the implementation of a perpetual calendar. Indeed, as mentioned above, this counting device is also adapted to the implementation of an annual calendar without departing from the scope of the present invention, or even a simple calendar taking into account only the months of 30 and 31 days .
[00190] L'homme du métier ne rencontrera pas de difficulté particulière pour adapter le contenu de la présente divulgation à ses propres besoins et mettre en œuvre un dispositif de comptage pour mécanisme de calendrier comportant un mécanisme de commande comprenant un mobile des mois, monté rotatif sur une première planche d'un mobile de programme et portant une came de rayon variable agencée pour coopérer avec une dent mobile pour en définir la position, en fonction du nombre de jours du mois en cours, sans sortir du cadre de la présente invention. [00190] The skilled person will not encounter any particular difficulty to adapt the content of the present disclosure to his own needs and implement a counting device for a calendar mechanism comprising a control mechanism comprising a mobile months, mounted rotating on a first board of a mobile program and carrying a variable radius cam arranged to cooperate with a movable tooth to define the position, according to the number of days of the current month, without departing from the scope of the present invention.
[00191] A titre d'exemple, les formes illustrées et décrites pour les cames 240, 270, 540 et 570 ne sont qu'illustratives de même que leur mode de coopération avec les dents mobiles correspondantes. En effet, il est possible d'envisager en alternative, par exemple, que l'une au moins des cames présente la forme d'un anneau irrégulier mais d'épaisseur constante et que cet anneau est engagé dans une gorge ménagée transversalement dans chaque dent correspondante au lieu d'être simplement disposé à l'arrière de la dent mobile concernée pour la pousser. Ainsi, lorsque la came tourne et que sa portion engagée dans une dent voit son rayon varier, elle entraîne un déplacement radial de la dent mobile entre ses première et seconde positions, soit dans les deux sens. De manière alternative, la came pourrait présenter des alternances de creux et de colonnes, à la façon d'une roue à colonnes, dans le cas d'un calendrier simple ou annuel, sans sortir du cadre de l'invention.  By way of example, the forms illustrated and described for the cams 240, 270, 540 and 570 are illustrative as well as their mode of cooperation with the corresponding movable teeth. Indeed, it is possible to consider as an alternative, for example, that at least one of the cams has the shape of an irregular ring but constant thickness and that this ring is engaged in a groove formed transversely in each tooth corresponding instead of being simply arranged at the rear of the movable tooth concerned to push it. Thus, when the cam rotates and its portion engaged in a tooth sees its radius vary, it causes a radial displacement of the movable tooth between its first and second positions, or in both directions. Alternatively, the cam could have alternating recesses and columns, in the manner of a column wheel, in the case of a simple or annual calendar, without departing from the scope of the invention.
[00192] Par ailleurs, comme déjà mentionné, le premier organe élastique 227, 527 peut être réalisé en une ou en plusieurs parties sans incidence sur la mise en œuvre de la présente invention, les dents mobiles pouvant notamment être réalisées d'une pièce avec lui ou non.  Furthermore, as already mentioned, the first elastic member 227, 527 can be made in one or more parts without affecting the implementation of the present invention, the movable teeth can in particular be made in one piece with him or not.

Claims

Dispositif de comptage, pour mécanisme de calendrier de mouvement horloger, comportant un organe denté fixe (250, 550) et un mobile de programme (222, 522), coaxiaux, ce dernier comportant Counting device, for a watch movement calendar mechanism, comprising a coaxial fixed gear (250, 550) and a program gear (222, 522), the latter comprising
une première planche rotative (224, 524) présentant une denture externe (225, 525),  a first rotary board (224, 524) having external toothing (225, 525),
un dispositif de correction des mois courts, supporté par ladite première planche (224, 524) et comprenant au moins une première dent mobile (228, 528) en référence à ladite première planche entre une première position, escamotée, et une seconde position, extraite, dans laquelle elle est ajoutée à la denture (225, 525) de ladite première planche, par juxtaposition ou superposition, et  a short month correction device, supported by said first board (224, 524) and comprising at least a first movable tooth (228, 528) with reference to said first board between a first retracted position and a second position, extracted , in which it is added to the toothing (225, 525) of said first board, by juxtaposition or superposition, and
un mécanisme de commande (238, 248, 538, 548) agencé pour définir la position de ladite première dent mobile (228, 528) et comprenant au moins une première roue (248, 548) agencée en prise avec ledit organe denté fixe (250, 550),  a control mechanism (238, 248, 538, 548) arranged to define the position of said first movable tooth (228, 528) and comprising at least a first wheel (248, 548) arranged in engagement with said stationary gear (250 , 550),
caractérisé en ce que ledit mécanisme de commande comporte un mobile des mois (238, 538), monté rotatif sur ladite première planche (224, characterized in that said control mechanism comprises a month moving member (238, 538) rotatably mounted on said first board (224,
524) , comprenant une denture (245, 545) présentant une liaison cinématique avec ladite première roue (248, 548) et, portant une première came (240, 540) de rayon variable agencée pour coopérer avec ladite première dent mobile (228, 528) et en définir la position. 524), comprising a toothing (245, 545) having a kinematic connection to said first wheel (248, 548) and carrying a first cam (240, 540) of variable radius arranged to cooperate with said first movable tooth (228, 528). ) and define the position.
Dispositif selon la revendication 1 , caractérisé en ce que la première roue (248, 548) est une roue satellite montée rotative suivant un axe (246, 546) solidaire de ladite première planche (224, 524), et en ce que la denture (245, 545) dudit mobile des mois (238, 538) est une denture interne.  Device according to claim 1, characterized in that the first wheel (248, 548) is a satellite wheel rotatably mounted along an axis (246, 546) integral with said first plate (224, 524), and in that the toothing ( 245, 545) of said mobile months (238, 538) is an internal toothing.
Dispositif selon la revendication 1 ou 2, en particulier pour mécanisme de calendrier annuel ou perpétuel de mouvement horloger, caractérisé Device according to claim 1 or 2, in particular for annual or perpetual calendar movement mechanism, characterized
en ce qu'il comporte une seconde dent mobile (229, 529) en référence à ladite première planche (224, 524) entre une première position, escamotée, et une seconde position, extraite, dans laquelle elle est ajoutée à la denture (225, in that it comprises a second movable tooth (229, 529) with reference to said first board (224, 524) between a first position, retracted, and a second position, extracted, in which it is added to the toothing (225 ,
525) de ladite première planche, par juxtaposition ou superposition, et 525) of said first board, by juxtaposition or superposition, and
en ce que ladite première came (240, 540) est agencée pour coopérer avec ladite seconde dent mobile (229, 529) de manière à en définir également la position. in that said first cam (240, 540) is arranged to cooperate with said second movable tooth (229, 529) so as to also define its position.
Dispositif selon l'une quelconque des revendications 1 à 3, caractérisé en ce que ledit dispositif de correction des mois courts comprend un premier organe élastique (227, 527) agencé pour agir sur ladite ou lesdites dents mobiles (228, 229, 528, 529) et définir au moins l'une desdites première et seconde positions.  Device according to any one of claims 1 to 3, characterized in that said device for correcting short months comprises a first elastic member (227, 527) arranged to act on said one or more movable teeth (228, 229, 528, 529 ) and define at least one of said first and second positions.
Dispositif selon la revendication 4, caractérisé en ce que ledit premier organe élastique (227, 527) comprend un bras élastiquement déformable par dent mobile (228, 229, 528, 529), dont chacun présente une portion terminale associée à ladite dent mobile (228, 229, 528, 529) correspondante.  Device according to claim 4, characterized in that said first elastic member (227, 527) comprises an elastically deformable movable tooth arm (228, 229, 528, 529), each of which has an end portion associated with said movable tooth (228). , 229, 528, 529).
Dispositif selon l'une quelconque des revendications 1 à 5, caractérisé en ce que ladite première came (240, 540) présente une périphérie agencée de manière à agir, en cas de besoin, sur ladite première dent mobile (228, 528) ou sur lesdites première et seconde dents mobiles (228, 229, 528, 529) de manière à exercer une pression sur elles et à les repousser en direction de leur position extraite. Device according to any one of claims 1 to 5, characterized in that said first cam (240, 540) has a periphery arranged to act, if necessary, on said first movable tooth (228, 528) or on said first and second movable teeth (228, 229, 528, 529) so as to exert pressure on them and push them towards their extracted position.
Dispositif selon l'une quelconque des revendications 4 à 6, caractérisé en ce que led it prem ier organe élastique (227) présente une forme générale d'anneau ouvert comprenant un ergot (230) agencé pour coopérer avec des surfaces de butée (232) ménagées dans ladite première planche (224) pour rendre ledit organe élastique (227) solidaire en rotation de ladite première planche (224).  Device according to any one of claims 4 to 6, characterized in that led it first elastic member (227) has a generally open ring shape comprising a lug (230) arranged to cooperate with abutment surfaces (232) arranged in said first board (224) to make said resilient member (227) integral in rotation with said first board (224).
Dispositif selon l'une quelconque des revendications 4 à 7, caractérisé en ce qu'il comporte un second organe élastique (257, 557), de correction bissextile, solidaire en rotation de ladite première planche (224, 524) et agissant sur une troisième dent mobile (258, 558) en référence à ladite première planche entre une première position, escamotée, et une seconde position, extraite, dans laquelle elle est ajoutée à la denture (225, 525) de ladite première planche (224, 524), par juxtaposition ou superposition, ledit mécanisme de commande étant également agencé pour définir la position de ladite troisième dent mobile (258, 558). Device according to any one of claims 4 to 7, characterized in that it comprises a second resilient member (257, 557), a leap-correction device, integral in rotation with said first board (224, 524) and acting on a third movable tooth (258, 558) with reference to said first board between a first retracted position and a second extracted position in which it is added to the toothing (225, 525) of said first board (224, 524), by juxtaposition or superposition, said control mechanism being also arranged to define the position of said third movable tooth (258, 558).
9. Dispositif selon la revendication 8, caractérisé en ce que ledit mécanisme de commande comprend 9. Device according to claim 8, characterized in that said control mechanism comprises
une seconde roue (249, 549) présentant une liaison cinématique avec ledit mobile des mois (238, 538),  a second wheel (249, 549) having a kinematic connection with said month wheel (238, 538),
u n mobile de correction bissexti le (266, 566) monté rotatif sur ladite première planche (224, 524) et comprenant une denture (268, 568) présentant une liaison cinématique avec ladite seconde roue (249, 549) et portant une seconde came (270, 570) de rayon variable agencée pour coopérer avec ladite troisième dent mobile (258, 558) et en définir la position.  a bissexti correction device (266, 566) rotatably mounted on said first board (224, 524) and having a toothing (268, 568) having a kinematic connection to said second wheel (249, 549) and carrying a second cam ( 270, 570) of variable radius arranged to cooperate with said third movable tooth (258, 558) and define its position.
10. Dispositif selon la revendication 9, caractérisé en ce que la seconde roue (249, 549) est une roue satellite montée rotative suivant un axe (246, 547) solidaire de ladite première planche (224, 524). 10. Device according to claim 9, characterized in that the second wheel (249, 549) is a satellite wheel rotatably mounted along an axis (246, 547) integral with said first board (224, 524).
1 1 . Dispositif selon la revendication 9 ou 10, caractérisé en ce que ladite seconde roue (249, 549) est agencée en prise avec une denture supplémentaire (244, 544) dudit mobile des mois (238, 538).  1 1. Device according to claim 9 or 10, characterized in that said second wheel (249, 549) is arranged in engagement with an additional toothing (244, 544) of said month wheel (238, 538).
12. Dispositif selon l'une quelconque des revendications 8 à 1 1 , caractérisé en ce que ledit second organe élastique (257, 557) comporte au moins un bras élastiquement déformable et présentant une portion terminale solidaire de ladite troisième dent mobile (258, 558).  12. Device according to any one of claims 8 to 1 1, characterized in that said second elastic member (257, 557) comprises at least one elastically deformable arm and having a terminal portion integral with said third movable tooth (258, 558). ).
13. Dispositif selon l'une quelconque des revendications 8 à 12, caractérisé en ce qu'il comporte en outre une planche supplémentaire (252, 552), solidaire de ladite première planche (224, 524) et, présentant un logement (256, 262, 556) pour ledit second organe élastique (257, 557) de telle manière que ce dernier est solidaire de ladite planche supplémentaire en rotation. 13. Device according to any one of claims 8 to 12, characterized in that it further comprises an additional board (252, 552) integral with said first board (224, 524) and having a housing (256, 262, 556) for said second elastic member (257, 557) so that the latter is secured to said additional plank in rotation.
14. Dispositif selon l'une quelconque des revendications 8 à 13, caractérisé en ce qu'il comporte un mobile d'entraînement (201 ) dudit mobile de programme (222, 522) présentant une première denture (204), définissant un premier niveau et, destinée à permettre son entraînement à partir d'un mobile d'un mouvement horloger, au moins des première, seconde et troisième dents (206) situées dans au moins un second niveau et au moins une quatrième dent (208) définissant un troisième niveau, suivant la direction axiale dudit mobile d'entraînement (201 ), et 14. Device according to any one of claims 8 to 13, characterized in that it comprises a driving wheel (201) of said mobile program (222, 522) having a first toothing (204), defining a first level and, for driving from a watch movement mobile, at least first, second and third teeth (206) in at least a second level and at least a fourth tooth (208) defining a third level, in the axial direction of said driving wheel (201), and
en ce que, d'une part, lesdites première (228, 528), seconde (229, 529) et troisième (258, 558) dents mobiles et, d'autre part, la denture (225, 525) de ladite première planche (224, 524), sont agencées respectivement en regard dudit second niveau et dudit troisième niveau, in that, on the one hand, said first (228, 528), second (229, 529) and third (258, 558) movable teeth and, on the other hand, the toothing (225, 525) of said first board (224, 524) are respectively arranged opposite said second level and said third level,
lesdites première, seconde et troisième dents (206) dudit mobile d'entraînement (201) étant situées hors de portée de la denture (225, 525) de ladite première planche (224, 524).  said first, second and third teeth (206) of said drive wheel (201) being located out of range of the toothing (225, 525) of said first board (224, 524).
15. Dispositif selon l'une quelconque des revendications précédentes, caractérisé en ce q u e ledit mobile de programme (222, 522) présente une liaison cinématique avec un organe d'affichage du quantième (1 ).  15. Device according to any one of the preceding claims, characterized in that said mobile program (222, 522) has a kinematic connection with a date display member (1).
16. Dispositif selon la revendication 15, caractérisé en ce que ledit mobile de programme (222, 522) présente également une liaison cinématique avec un organe d'affichage du jour de la semaine (3) et/ou avec un organe d'affichage du mois (2) et/ou avec un organe d'affichage des années bissextiles.  16. Device according to claim 15, characterized in that said program mobile (222, 522) also has a kinematic connection with a display member of the day of the week (3) and / or with a display member of the month (2) and / or with a leap year display.
17. Mouvement horloger comportant un dispositif de comptage selon l'une quelconque des revendications précédentes.  17. Watch movement comprising a counting device according to any one of the preceding claims.
18. Pièce d'horlogerie comportant un mouvement horloger selon la revendication 17.  18. Timepiece comprising a watch movement according to claim 17.
EP14729694.1A 2013-06-14 2014-06-13 Calendar mechanism for a clock movement Active EP3008523B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP14729694.1A EP3008523B1 (en) 2013-06-14 2014-06-13 Calendar mechanism for a clock movement

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP13172171.4A EP2813902A1 (en) 2013-06-14 2013-06-14 Calendar mechanism for a clockwork
EP14729694.1A EP3008523B1 (en) 2013-06-14 2014-06-13 Calendar mechanism for a clock movement
PCT/EP2014/062484 WO2014198954A2 (en) 2013-06-14 2014-06-13 Calendar mechanism for a clock movement

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EP3008523A2 true EP3008523A2 (en) 2016-04-20
EP3008523B1 EP3008523B1 (en) 2020-01-22

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EP13172171.4A Withdrawn EP2813902A1 (en) 2013-06-14 2013-06-14 Calendar mechanism for a clockwork
EP14729694.1A Active EP3008523B1 (en) 2013-06-14 2014-06-13 Calendar mechanism for a clock movement

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EP13172171.4A Withdrawn EP2813902A1 (en) 2013-06-14 2013-06-14 Calendar mechanism for a clockwork

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CN (1) CN105683844B (en)
WO (1) WO2014198954A2 (en)

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Publication number Priority date Publication date Assignee Title
CH715119A1 (en) * 2018-06-22 2019-12-30 Montblanc Montre Sa Perpetual calendar mechanism for a timepiece.
EP3608729B1 (en) * 2018-08-09 2024-07-31 Rolex Sa Clock calendar device
CH715471B1 (en) * 2018-10-25 2023-02-28 Lvmh Swiss Mft Sa Clockwork mechanism for calendar, in particular for perpetual calendar.
IT201900004735A1 (en) * 2019-03-29 2020-09-29 La Vallee S R L Indicator device for watchmaking
JP2022099297A (en) * 2020-12-22 2022-07-04 ロレックス・ソシエテ・アノニム Spring for notching system and timepiece notching system
CH718699A1 (en) * 2021-06-01 2022-12-15 Richemont Int Sa Perpetual calendar display system with secular correction.

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Publication number Priority date Publication date Assignee Title
CH684815B5 (en) * 1993-07-15 1995-07-14 Longines Montres Comp D Mechanism annual calendar timepiece.
DE60230011D1 (en) * 2002-04-02 2009-01-08 Nardin Ulysse Sa Device with program wheel for the mechanism of a perpetual calendar as well as clock with such mechanism
CN100395672C (en) * 2004-03-16 2008-06-18 伍凌宇 Permanent calendar device for watches
EP1868047A1 (en) * 2006-06-12 2007-12-19 Vaucher Manufacture Fleurier SA Timepiece with a calendar mechanism
CH699102B1 (en) * 2008-07-10 2015-03-31 Richemont Int Sa Mobile two-way drive, timepiece and having the indicator mechanism or months.

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Title
See references of WO2014198954A3 *

Also Published As

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CN105683844A (en) 2016-06-15
WO2014198954A2 (en) 2014-12-18
CN105683844B (en) 2019-03-19
EP3008523B1 (en) 2020-01-22
WO2014198954A3 (en) 2016-01-14
EP2813902A1 (en) 2014-12-17

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