EP2813902A1 - Kalendermechanismus für Uhrwerk - Google Patents

Kalendermechanismus für Uhrwerk Download PDF

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Publication number
EP2813902A1
EP2813902A1 EP13172171.4A EP13172171A EP2813902A1 EP 2813902 A1 EP2813902 A1 EP 2813902A1 EP 13172171 A EP13172171 A EP 13172171A EP 2813902 A1 EP2813902 A1 EP 2813902A1
Authority
EP
European Patent Office
Prior art keywords
board
wheel
toothing
mobile
movable tooth
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.)
Withdrawn
Application number
EP13172171.4A
Other languages
English (en)
French (fr)
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 Creation Studio SA
Original Assignee
Cartier Creation Studio SA
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 Creation Studio SA filed Critical Cartier Creation Studio SA
Priority to EP13172171.4A priority Critical patent/EP2813902A1/de
Priority to EP14729694.1A priority patent/EP3008523B1/de
Priority to CN201480033834.0A priority patent/CN105683844B/zh
Priority to PCT/EP2014/062484 priority patent/WO2014198954A2/fr
Publication of EP2813902A1 publication Critical patent/EP2813902A1/de
Withdrawn legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G04—HOROLOGY
    • G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
    • G04B19/00—Indicating the time by visual means
    • G04B19/24—Clocks or watches with date or week-day indicators, i.e. calendar clocks or watches; Clockwork calendars
    • G04B19/243—Clocks or watches with date or week-day indicators, i.e. calendar clocks or watches; Clockwork calendars characterised by the shape of the date indicator
    • G04B19/247—Clocks or watches with date or week-day indicators, i.e. calendar clocks or watches; Clockwork calendars characterised by the shape of the date indicator disc-shaped
    • 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 coaxial fixed gear and a program gear, 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 with reference to the first board between a first retracted position and a second extracted position in which it is added to the toothing of the first board by juxtaposition or superimposition , 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.
  • Additional mobiles carried by the first board, are arranged to ensure the training of the mobile program an additional step at the end of the months of 29 and 30 days.
  • this device is complex because it comprises 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.
  • a main object of the present invention is to overcome the drawbacks of counting devices known from the prior art, by proposing an alternative construction, less complex and less cumbersome but to obtain the same result, with 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 an additional toothing having a kinematic connection with the first wheel and carrying a first cam of variable radius arranged to cooperate with the first movable tooth and to define the position thereof.
  • the counting device has a limited space in the plane of the corresponding watch movement, as well as in the axial direction of the program mobile.
  • the displacement of 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 satellite wheel rotatably mounted along an axis integral with the first board, the additional toothing 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 makes it possible to take 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 taking into account in the case of a perpetual calendar.
  • the device for correcting the short months comprises a first elastic 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 so as 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 push them back. direction of 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 with the first board.
  • the calendar mechanism When the calendar mechanism is of the perpetual type, it may comprise a second elastic member, leap-correction, fixed 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 leaking correction mobile mounted rotatably 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.
  • 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 leaking correction mobile mounted rotatably 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 toothing 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
  • the figure 2 represents an exploded perspective view of a portion of the construction presented on the figure 1 ;
  • FIG. 3 represents a simplified front view of certain elements illustrated on the figure 2 , when assembled;
  • the figure 4 represents a simplified perspective view of the watch movement of the figure 1 ;
  • the figure 5 represents an exploded perspective view of a construction detail of the watchmaking movement of the figure 1 ;
  • the figure 6 represents a simplified front view of certain elements of the watchmaking movement of the figure 1 , isolated;
  • FIG. 7 represents an exploded perspective view similar to that of the figure 2 in connection with a second preferred embodiment of the invention.
  • the figure 8 represents a simplified front view of certain elements illustrated on the figure 7 , when assembled.
  • the figure 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 of 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 illustrated) bearing indications, respectively, of the date, the month and the day of the week.
  • 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 nonlimiting indicative is of the perpetual type, although the object of the present invention is also applicable to an annual type 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 relation to the figures 2 and 3 and, which is arranged to ensure proper training of a display gear of days of the week 400, described in connection with the figures 4 and 5 , a display gear of the date 500, visible on the figures 1 and 4 , and a display gear of 600 months, described in connection with the figure 6 .
  • the watch movement of the figure 1 also features a 700 leap years cog, driven from the 600 month display gear 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.
  • This comprises a 24-hour mobile 201 intended to be rotated from the hour wheel (not shown) of the watch movement, to make a complete turn on itself in 24 hours.
  • the 24-hour mobile comprises a first wheel 202 having three superimposed levels of teeth.
  • a first level of 204 teeth to 24 teeth is intended to mesh with the hour wheel.
  • teeth of the first toothing 204 have a greater thickness than the other teeth to extend into a second level of toothing 206, the function of which 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 level of toothing 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 211, while the rest of its periphery has a greater radius to that which would have the bottom of a complete dentition that would correspond to tooth 211.
  • 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 24-hour mobile is intended to train 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 toothing 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 each carrying at its end a movable tooth.
  • the first elastic member 227 comprises two portions that are distinct from one another and substantially symmetrical so as 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 member 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 the maintenance of 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 mobile of the months 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 fulfills 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 by compared to the other three. The function of the cam will be explained later, in relation to the figure 3 .
  • the inner periphery of the cam 240 has a tooth 244 directed towards its center and the function of which will also be explained later.
  • the second level of the mobile of the months 238 has an internal toothing 245 intended to be housed in the second housing 237.
  • the first board 224 also includes a finger 246 for supporting 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 rotation of the mobile of the months 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 the assembly which has just been described.
  • the second board 252 has a support surface 256 on which is disposed 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, elastically 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 maintaining the second elastic member on the second board and, to ensure radial guidance of the tooth when moved between a first position, retracted, and a second position, extracted.
  • a correction mobile comprising a third board 266 is assembled on the second board 252, so as to be free to rotate relative thereto, in particular to ensure axial retention of the second member 257.
  • the inner face of the third board carries a gear 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 program mobile 222, in a conventional manner.
  • the figure 3 illustrates some details of operation of the program mobile 222 which has just been described.
  • FIG 3 illustrates the configuration of certain components of the counting device according to the present invention as they are on February 28th.
  • the first of the teeth 206 of the 24-hour mobile 201 extending on the second level is located within range of the program mobile 222.
  • the month of February has 28 days, which implies that the mobile program 222 must turn four steps to indicate then the first day of the following month.
  • the third movable tooth 258 (not visible on the 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 24-hour mobile 201 When the 24-hour mobile 201 is driven at a first step by the hour wheel (by means of a reduction gear for example, these elements being well known and not shown), the first tooth 206 drives the moving wheel.
  • 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 the 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.
  • the display of the The date then passes from the 29th to the 30th.
  • the third tooth 206 of the second level meets the second movable tooth 229 and causes a additional rotation of a step of the program mobile 222.
  • the display of the date then changes from 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 pitch 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 a position to mesh with the 24-hour mobile for at least 28 days.
  • the month of February has 29 days, which implies that the mobile program 222 must turn three steps only to then indicate the first day of the following month.
  • 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 opposite the third movable tooth 258.
  • the first three teeth 206 extending at the second level pass in front of the program wheel 222 without driving, while the fourth tooth 208 extending at the third level comes into contact with a tooth of the first toothing 225 to make turn the program mobile one step.
  • the display of the date then changes from 28 to 29.
  • the 24-hour mobile 201 then continues to turn on itself for 20 hours without coming into contact with the program mobile 222.
  • the first tooth 206 extending at the second level meets the first movable tooth 228 and causes a rotation of a step of the program mobile 222.
  • the display of the date then changes from 29 to 30.
  • the second tooth 206 of the second level meets the second movable tooth 229 and causes an additional rotation of a step of the program mobile 222.
  • the display of the date then changes from 30 to 31.
  • the third tooth 206 of the second level passes next to the mobile program 222 but does not lead to it since the first set of teeth 225 is located at the third level, out of reach of this tooth 206.
  • the date display remains unchanged.
  • 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 pitch 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 toothed member 250, because the finger 246 is secured to the first board 224 of the 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 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 next to the tooth 251 of the fixed toothed member 250.
  • the gear ratio between the first satellite wheel 248 and the mobile of the months 238 is such that this last advance of a twelfth of a turn, counter-clockwise on the figure 3 every time the first satellite wheel turns two steps.
  • 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 reach within range of the moving wheel. 24 hours 201.
  • the inactive portion of the cam 240 located 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 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.
  • the third tooth 258 is also retracted in this configuration, as will be apparent from subsequent explanations.
  • the simple boss 241 located to the right of the inactive portion mentioned above is positioned opposite the second movable tooth 229 to push it towards 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 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.
  • the two following teeth 206 pass in front of the program mobile without driving it, during the next two hours, since the latter no longer has a tooth located in this level.
  • 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).
  • cam 240 corresponds to the months of July-August and December-January, each month having 31 days.
  • 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 tooth 244 of the months mobile meshes with the second satellite wheel 249 and rotates two steps, a quarter turn here.
  • the gear ratio between the second planet wheel 249 and the pinion 268 of the third plate 266 is such that the latter is rotated by a quarter of a turn when the second planet wheel 249 rotates a quarter of a turn, ie a times 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 for let it take its retracted position, under the effect of the forces exerted by the elastic portions 259 and 260.
  • the figure 4 represents a perspective view of the elements already illustrated on the figure 1 .
  • the components of the display gear of the days of the week 400 are more particularly visible in this figure.
  • the tooth 211 of the board 210 of the 24-hour mobile is arranged to drive an incoming mobile 401 of the wheel of the weekdays each complete turn of the mobile 24 hours on itself.
  • the input mobile 401 comprises a reference 402, arranged to cooperate with the tooth 211 and, integral with a pinion 404 meshing with a first wheel 406 of a friction wheel 407, an example of a preferred structure will be described later in relation to the figure 5 .
  • the link between the reference 402 and the board 210 of the 24-hour mobile 201 is 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 He rotates it once a day.
  • 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 4 of the display window 4 days of the week.
  • a jumper 413 is arranged to ensure the correct positioning of the wheel 412 of the mobile gear.
  • a mechanism for correcting the display of the days of the week is provided so as to act directly on the gear train 400.
  • This correction mechanism comprises a control lever 414 intended to be pivotally mounted on a frame member of the corresponding watch movement 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 rotate the lever counterclockwise on the figure 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 day correction wheel 424, by means of the leaf spring 420, to rotate it one step in the direction of clockwise rotation.
  • the correction mobile days comprises 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 for effect of advancing the display disk 3 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 of the days 424 is also driven in the clockwise rotation direction. figure 4 .
  • the leaf spring 420 is arranged to elastically deform to allow the relevant branch of the star 423 to pass in front of it.
  • the 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 rotatably connected to the first wheel 406, and a spring 432, integral with the second wheel 408 and fulfilling a function similar to that of a jumper.
  • the spring 432 has a generally circular shape and comprises four S-shaped arms 434 carrying, in pairs 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 bearing 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 the second wheel 408.
  • the crown 430 exerts a force on the nozzles 436 of the spring 432 to drive the latter in rotation and drive the second wheel 408 at the same time.
  • the day of the week display is changed.
  • the second wheel 408 In correction mode, it is the second wheel 408 that is driven as a result of user action on the control lever 414, which also causes 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 by the intermediate pinion 410 and the wheel 412 of the mobile gear.
  • the Maltese cross link as described above between the board 24 of the mobile 24 hours and the mobile 401 input, must be removed to allow correction of the day of the week, via the control lever 414, without affecting the operation of the calendar mechanism.
  • 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 latch 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 date display disc 1.
  • 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.
  • the figure 6 represents a simplified front view and partial transparency illustrating the transmission provided between the date display disc 1 and the month display disc 2.
  • the display disk of the date 1 carries a ring 601 driving months, visible in transparency under the disk 1 on the figure 6 .
  • This ring 601 cooperates with the pinion 602 of a reduction mobile 604 in the form of a Maltese cross type connection 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 intended to drive the pinion 602 in the direction of rotation anti-clockwise two steps per month, by way of non-limiting illustration.
  • the reduction mobile further comprises a wheel 610 integral with the pinion 602 in rotation and arranged in engagement with the display disk of the months 2.
  • a wheel 610 integral with the pinion 602 in rotation and arranged in engagement with the display disk 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 return 701 constituting the entry point of the cog in the 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.
  • the figures 7 and 8 illustrate partial views of a watch movement according to a second preferred embodiment of the present invention.
  • the 24-hour mobile 201 is unchanged with reference to the first embodiment. It is intended to train a program mobile 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 includes a first board 524 having a first toothing 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 keep 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 shape of a portion of a circle whose free end of each is associated with the one of the movable teeth, being housed in a suitable 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 as they are moved between a first retracted position and a second retracted position.
  • the first board has an annular housing 536 for housing a mobile 538 months.
  • the mobile of the months 538 has the general shape of a crown with two levels.
  • 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 538 months has internal teeth 545.
  • the first board 524 also includes first and second fingers 546, 547 for supporting, respectively, first and second planet wheels 548 and 549.
  • a toothed member 550 fixed, is arranged in the center of the first board 524, the latter being assembled to a frame member of the watch movement not shown.
  • the toothed organ carries a single tooth 551 arranged to cooperate with the first satellite wheel 548 and rotate it on itself as it passes in front of him.
  • the rotation of the first satellite wheel 548 causes rotation of the mobile of the months 538 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 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 the assembly which 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 maintain this last in a retracted configuration.
  • the frame also has holes 561 intended to cooperate 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 provide radial guidance of the tooth when moved between a first retracted position and a second retracted position.
  • 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 wheel 566 includes a toothing 568 for meshing with the second planet wheel 549 to induce a rotation of the correction wheel 566 relative to the first board 524.
  • a second level of the correction mobile 566 includes 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 each other, are provided. to define two series of three successive bosses.
  • a closure cover 574 is provided to hold the assembly together, being secured to the first board 524 by means of the screws 554.
  • the figure 8 represents a view from above illustrating the nature of the cooperation intervening between some of the components which have just been described, in a manner similar to the view of the 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 nonlimiting illustration, while the mechanism according to the first embodiment is arranged in such a way that the cam 270 has 4-year cycles with reference to the second board 252.
  • a counting device for a calendar mechanism comprising a control mechanism comprising a moving month, rotatably mounted 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 only illustrative as well as their mode of cooperation with the corresponding moving 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.
  • the cam 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.
  • 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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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electromechanical Clocks (AREA)
EP13172171.4A 2013-06-14 2013-06-14 Kalendermechanismus für Uhrwerk Withdrawn EP2813902A1 (de)

Priority Applications (4)

Application Number Priority Date Filing Date Title
EP13172171.4A EP2813902A1 (de) 2013-06-14 2013-06-14 Kalendermechanismus für Uhrwerk
EP14729694.1A EP3008523B1 (de) 2013-06-14 2014-06-13 Kalendermechanismus für ein uhrwerk
CN201480033834.0A CN105683844B (zh) 2013-06-14 2014-06-13 时钟机芯的日历机构
PCT/EP2014/062484 WO2014198954A2 (fr) 2013-06-14 2014-06-13 Mecanisme de calendrier pour mouvement horloger

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP13172171.4A EP2813902A1 (de) 2013-06-14 2013-06-14 Kalendermechanismus für Uhrwerk

Publications (1)

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EP2813902A1 true EP2813902A1 (de) 2014-12-17

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EP14729694.1A Active EP3008523B1 (de) 2013-06-14 2014-06-13 Kalendermechanismus für ein uhrwerk

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EP14729694.1A Active EP3008523B1 (de) 2013-06-14 2014-06-13 Kalendermechanismus für ein uhrwerk

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EP (2) EP2813902A1 (de)
CN (1) CN105683844B (de)
WO (1) WO2014198954A2 (de)

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Publication number Priority date Publication date Assignee Title
CH715119A1 (fr) * 2018-06-22 2019-12-30 Montblanc Montre Sa Mécanisme de quantième perpétuel pour pièce d'horlogerie.
US20200050152A1 (en) * 2018-08-09 2020-02-13 Rolex Sa Timepiece calendar device
CH715471A1 (fr) * 2018-10-25 2020-04-30 Lvmh Swiss Mft Sa Mécanisme horloger pour quantième perpétuel.
IT201900004735A1 (it) * 2019-03-29 2020-09-29 La Vallee S R L Dispositivo indicatore per orologeria
EP4020097A1 (de) * 2020-12-22 2022-06-29 Rolex Sa Feder für ein rastungssystem und rastungssystem eines uhrwerks
WO2022253603A1 (fr) * 2021-06-01 2022-12-08 Richemont International Sa Systeme d'affichage de quantieme perpetuel a correction seculaire

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Publication number Priority date Publication date Assignee Title
EP1351104A1 (de) * 2002-04-02 2003-10-08 Ulysse Nardin S.A. Vorrichtung mit Programmrad für den Mechanismus eines ewigen Kalenders sowie Uhr mit solchem Mechanismus
EP1868047A1 (de) * 2006-06-12 2007-12-19 Vaucher Manufacture Fleurier SA Uhr mit einem Kalendarmechanismus
CH699102A2 (fr) * 2008-07-10 2010-01-15 Richemont Int Sa Mobile d'entraînement bidirectionnel et pièce d'horlogerie à indicateur de quantième ou de mois.

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CH684815B5 (fr) * 1993-07-15 1995-07-14 Longines Montres Comp D Mécanisme de quantième annuel pour pièce d'horlogerie.
CN100395672C (zh) * 2004-03-16 2008-06-18 伍凌宇 手表万年历机构

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1351104A1 (de) * 2002-04-02 2003-10-08 Ulysse Nardin S.A. Vorrichtung mit Programmrad für den Mechanismus eines ewigen Kalenders sowie Uhr mit solchem Mechanismus
EP1868047A1 (de) * 2006-06-12 2007-12-19 Vaucher Manufacture Fleurier SA Uhr mit einem Kalendarmechanismus
CH699102A2 (fr) * 2008-07-10 2010-01-15 Richemont Int Sa Mobile d'entraînement bidirectionnel et pièce d'horlogerie à indicateur de quantième ou de mois.

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH715119A1 (fr) * 2018-06-22 2019-12-30 Montblanc Montre Sa Mécanisme de quantième perpétuel pour pièce d'horlogerie.
EP3588201A1 (de) * 2018-06-22 2020-01-01 Montblanc Montre SA Jahreskalendermechanismus für uhrwerk
US20200050152A1 (en) * 2018-08-09 2020-02-13 Rolex Sa Timepiece calendar device
US11921462B2 (en) * 2018-08-09 2024-03-05 Rolex Sa Timepiece calendar device
CH715471A1 (fr) * 2018-10-25 2020-04-30 Lvmh Swiss Mft Sa Mécanisme horloger pour quantième perpétuel.
IT201900004735A1 (it) * 2019-03-29 2020-09-29 La Vallee S R L Dispositivo indicatore per orologeria
WO2020201917A1 (en) * 2019-03-29 2020-10-08 La Vallee S.R.L. Indicator device for watchmaking
EP4020097A1 (de) * 2020-12-22 2022-06-29 Rolex Sa Feder für ein rastungssystem und rastungssystem eines uhrwerks
US11977355B2 (en) 2020-12-22 2024-05-07 Rolex Sa Spring for a notching system and timepiece notching system
WO2022253603A1 (fr) * 2021-06-01 2022-12-08 Richemont International Sa Systeme d'affichage de quantieme perpetuel a correction seculaire
CH718699A1 (fr) * 2021-06-01 2022-12-15 Richemont Int Sa Système d'affichage de quantième perpétuel à correction séculaire.

Also Published As

Publication number Publication date
EP3008523B1 (de) 2020-01-22
CN105683844B (zh) 2019-03-19
WO2014198954A2 (fr) 2014-12-18
WO2014198954A3 (fr) 2016-01-14
EP3008523A2 (de) 2016-04-20
CN105683844A (zh) 2016-06-15

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