EP3008523B1 - Kalendermechanismus für ein uhrwerk - Google Patents

Kalendermechanismus für ein uhrwerk Download PDF

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Publication number
EP3008523B1
EP3008523B1 EP14729694.1A EP14729694A EP3008523B1 EP 3008523 B1 EP3008523 B1 EP 3008523B1 EP 14729694 A EP14729694 A EP 14729694A EP 3008523 B1 EP3008523 B1 EP 3008523B1
Authority
EP
European Patent Office
Prior art keywords
wheel
mobile
platform
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.)
Active
Application number
EP14729694.1A
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English (en)
French (fr)
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EP3008523A2 (de
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
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Publication date
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Priority to EP14729694.1A priority Critical patent/EP3008523B1/de
Publication of EP3008523A2 publication Critical patent/EP3008523A2/de
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Publication of EP3008523B1 publication Critical patent/EP3008523B1/de
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Classifications

    • G—PHYSICS
    • G04—HOROLOGY
    • G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
    • G04B19/00—Indicating the time by visual means
    • G04B19/24—Clocks or watches with date or week-day indicators, i.e. calendar clocks or watches; Clockwork calendars
    • G04B19/243—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

  • Additional mobiles carried by the first board, are arranged to ensure the training of the program mobile with 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 of these components being carried by the program mobile. Therefore, the program mobile necessarily has a substantial diameter as well as a large thickness.
  • the patent application CH 699 102 A2 in the name of the present Applicant, describes an annual calendar mechanism, for a watch movement, comprising a construction program mobile similar to that of the program mobile of the preceding document, the latter also being 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 gear trains, of conventional type, to correct the display of the date at the end of the short month.
  • This mechanism also allows a bidirectional manual correction of the date value.
  • Each gear train drives a correction toothed wheel, most of the teeth of which are truncated.
  • the two correction wheels are superimposed on each other, while having offset axes of rotation, which makes it difficult to assemble the program mobile.
  • this construction is relatively complex and also presents a significant bulk due to the high number of wheels carried by the program mobile.
  • the assembly of this mechanism is also complex.
  • the mechanism is arranged to introduce, as a first step, an offset between the two date wheels at the start of the short months, this offset corresponding to the difference between 31 and the number of days in the month concerned.
  • This offset amounts to programming the second date wheel so that its angular orientation is representative of the actual number of days in 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 up with the angular orientation of the second date wheel and directly ensure the display from the first day of the following month.
  • This mechanism is however very complex to produce and develop and has a relatively large size in terms of surface occupied in the plane of the watch movement.
  • This request relates to an annual or perpetual calendar mechanism for a watch movement, comprising a program mobile arranged in particular to drive a calendar display mobile.
  • the program mobile has three tracks, the shape of which depends on the number of days in the months of the year, and each of which is associated with a retractable tooth.
  • the program mobile is associated with a reduction mobile designed to provide differentiated rotation training for the different tracks.
  • Each retractable tooth is housed in a radial groove and carries a stud engaged in the corresponding track, in such a way that the tooth is guided to move in a radial direction, in order to complete a drive toothing for the display mobile. the date when necessary.
  • this mechanism has a space requirement, in terms of surface, similar to that described above, due to the need to have a mobile adjacent to the program mobile.
  • a main object of the present invention is to overcome the drawbacks of the counting devices known from the prior art, by proposing an alternative construction, less complex and less bulky but making it possible 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 month mobile, rotatably mounted on the first board, comprising a 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 define the position, retracted or extracted, according to the angular orientation of the first cam and with the implementation of a essentially radial guidance.
  • the control mechanism comprises a month mobile, rotatably mounted on the first board, comprising a 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 define the position, retracted or extracted, according to the angular orientation of the first cam and with the implementation of a essentially radial guidance.
  • 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 or perpetual calendar mechanism with a watch movement.
  • 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 teeth 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 its position.
  • the counting system also takes into account the reduced number of days in the month of February, without taking leap years into account in the case of an annual calendar and, with their taking into account in the case of a perpetual calendar.
  • the short month correction device comprises a first elastic member arranged to act on the tooth or teeth mobile and define at least one of the first and second positions.
  • the first elastic member may comprise an arm which is elastically deformable by 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 the general shape of an open ring 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 include a second elastic member, of 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 also being arranged to define the position of the third tooth.
  • a second elastic member of leap correction
  • the second satellite wheel is arranged in engagement with an additional toothing of the month mobile.
  • first and second satellite wheels are arranged coaxially, which makes it possible to further reduce 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 also include an additional board, integral with 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 can also have a kinematic link with a display device for the day of the week and / or with a display device for the month and / or with a display device for leap years.
  • the invention also relates to a timepiece movement comprising such a counting device as well as a timepiece comprising such a timepiece movement.
  • the figure 1 shows a general simplified front view of part of a watch movement, according to a first preferred embodiment of the invention, comprising members for displaying information relating to a calendar, preferably of the annual or perpetual type.
  • this watch movement includes 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 number of days between leap years and non-leap years for the month of February.
  • the watch movement illustrated here by way of non-limiting indication is of the perpetual type, although the subject of the present invention is also applicable to an annual calendar, subject to some adaptations of the present teaching, within the reach of those skilled in the art. .
  • the watch movement includes a counting device 200 which will be described in detail in relation to the figures 2 and 3 and which is arranged to ensure correct training of a train for displaying the days of the week 400, described in relation to the figures 4 and 5 , a gear train for the date 500, visible on the figures 1 and 4 , and a cog of the month 600 display, described in relation to the figure 6 .
  • the watch movement of the figure 1 also includes a cog of the leap years 700, driven from the cog display of the months 600 and, which will not be described in detail.
  • this cog in leap years simply comprises a plurality of mobiles arranged to introduce the correct reduction ratio to be applied to a display device for leap years, from a wheel carrying information relating to the months.
  • This comprises a 24-hour mobile 201 intended to be driven in rotation from the hour wheel (not shown) of the watch movement, to make a complete revolution on itself in 24 hours.
  • the 24-hour mobile comprises a first wheel 202 having three superimposed levels of teeth.
  • a first level of teeth 204 to 24 teeth is intended to mesh with the hour wheel.
  • teeth of the first teeth 204 have a thickness greater than the other teeth to extend into a second level of teeth 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 into a third level of toothing 208, therefore comprising only one tooth.
  • the 24-hour mobile also includes an additional board 210 for driving the cog displaying 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 toothing which 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 program mobile 222 in such a way that the number of days in the different months is taken into account to control the display of the calendar.
  • the movements of the program mobile 222 are transmitted to the date display disc 1, in a conventional manner, via the date train 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, for correcting 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 form of a portion of a circle and carrying, each at its end, a movable tooth.
  • the first elastic member 227 comprises two portions that are distinct from one another 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 opposite the teeth 228, 229 and, intended to cooperate with the side walls a slot 232 formed in the first board 224 to ensure 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 plate has first and second annular housings 236, 237 juxtaposed, at different levels of depth and, intended to accommodate a mobile of the months 238.
  • the mobile of months 238 has the general shape of a crown on two levels.
  • 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 single 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 other three. The function of the cam will be explained later, in relation to the figure 3 .
  • the internal 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 month mobile 238 has an internal toothing 245 intended to be housed in the second housing 237.
  • the first board 224 also includes a finger 246 intended to serve as a support for first and second satellite wheels 248 and 249.
  • a fixed toothed member 250 is arranged in the center of the first board 224, the latter being assembled to a frame element of the watch movement not shown.
  • the toothed organ carries a single tooth 251 arranged to cooperate with the first satellite wheel 248 and rotate it on itself when it passes in front of it.
  • the rotation of the first satellite wheel 248 causes the mobile of the months 238 to rotate with reference to the first board 224, by cooperation with its internal toothing 245.
  • the rotation of the month mobile 238 causes that of the second satellite wheel 249 by cooperation of the latter with the tooth 244.
  • a second intermediate board 252 is made integral with the first board 224 by means of screws 254, in particular to keep the assembly which has just been described assembled.
  • the second board 252 has a support surface 256 on which is arranged a second elastic member 257, of 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 opposite 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 radial guidance of the tooth when it is 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 to the latter, in particular to ensure axial maintenance of the second member 257.
  • the internal 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 internal face of the third board also carries a second cam 270 (visible in transparency), similar to the first cam 240 and, the periphery of which 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 opposite and the third is located in between, at 90 degrees. An inactive portion 272 is diametrically opposite 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 certain 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 found on February 28.
  • the first of the teeth 206 of the 24-hour mobile 201 extending on the second level is located within reach of the program mobile 222.
  • the 24-hour mobile rotates clockwise in the illustration of the figure 3 .
  • the month of February has 28 days, which means that the program mobile 222 must turn four steps to indicate 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 position to cooperate with the first tooth 206 of the 24-hour mobile.
  • the bosses 271 of the second cam 270 are intended to exert pressure on the third movable tooth 258, the last day of February in non-leap years, to place the latter in its extracted position.
  • the inactive portion 272 is arranged opposite the third movable tooth to allow the latter to be positioned in its retracted position.
  • the first tooth 206 drives the mobile program 222 by one step anti-clockwise, via the third movable tooth 258.
  • the date display changes 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 mobile tooth 228 and causes an additional rotation of one step of the program mobile 222.
  • the display of the date then goes from 29 to 30.
  • the third tooth 206 of the second level meets the second mobile tooth 229 and causes an additional rotation of one step of the program mobile 222.
  • the date display then changes from 30 to 31.
  • the fourth tooth 208 extending to the third level meets a tooth of the first toothing 225 of the program mobile and causes an additional rotation of one step of the latter.
  • the date display then changes from 31 to 1.
  • the movable teeth 228, 229 and 258 are no longer in the position of meshing with the 24-hour mobile for at least 28 days.
  • the third mobile tooth 258 is in its retracted position, that is to say beyond the 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 mobile 222 without driving it, 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 by one step.
  • the date display then changes from 28 to 29.
  • the 24-hour mobile 201 then continues to rotate on itself for 20 hours without coming into contact with the program mobile 222.
  • the first tooth 206 extending to the second level meets the first mobile tooth 228 and causes a rotation of one step of the program mobile 222.
  • the date display then changes from 29 to 30.
  • the second tooth 206 of the second level meets the second mobile tooth 229 and causes an additional rotation of one step of the program mobile 222.
  • the date display passes then from 30 to 31.
  • the third tooth 206 of the second level passes opposite the program mobile 222 but does not drive it since the first toothing 225 is located on the third level, ie out of reach of this tooth 206.
  • the date display then remains unchanged.
  • the fourth tooth 208 extending to the third level meets a tooth of the first toothing 225 of the program mobile and causes an additional rotation of one step of the latter.
  • the date display then changes from 31 to 1.
  • the rotation of the program mobile 222 on itself causes the two satellite wheels 248 and 249 to rotate around the fixed toothed member 250, because the finger 246 is integral with the first board 224 of the mobile 222.
  • the toothing of the first satellite wheel 248 slides over the periphery of the toothed member 250, in a similar manner to a Maltese cross type transmission, generally implemented in certain date mechanisms.
  • the first satellite wheel 248 rotates around the toothed member 250 without being able to rotate 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.
  • This connection between the first satellite wheel 248 and the toothed member 250 causes at the same time the locking of the mobile of the months 238, the toothing of which 245 is engaged with that of the first satellite wheel 248, with reference to the first board 224 .
  • the mobile program 222 making a turn on itself in a month (that is to say in a number of days varying 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 the latter advances by a twelfth of a turn, counterclockwise on the figure 3 , each time the first satellite wheel turns two steps.
  • the finger 246 and the tooth 251 of the fixed toothed member 250 are positioned relative to one another in such a way that the rotation of the month mobile 238 occurs each month before the mobile teeth reach the range of the mobile. 24 hours 201.
  • the inactive portion of the cam 240 situated to the right of the double boss 242 is positioned opposite the first and second mobile teeth 228 and 229.
  • the latter take then their retracted position under the effect of the elastic portions which 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 emerge from subsequent explanations.
  • the single boss 241 located to the right of the above-mentioned inactive portion comes to be positioned opposite the second movable tooth 229 to push it back to its extracted position.
  • the first movable tooth 228 itself 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 different 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 movable 222 by one step.
  • the date display then changes from 30 to 31.
  • the next two teeth 206 pass in front of the program mobile without driving it, during the following 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, an hour later, to drive the program mobile with an additional step.
  • the date display then changes from 31 (April) to 1 st ( May).
  • cam 240 corresponds to the months of July-August and December-January, each of these months counting 31 days.
  • the month mobile 238 also makes a full revolution 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 internal periphery of the cam 240 to lock the satellite wheel by a type of connection Maltese cross, as underlined above in relation to the first satellite wheel 248 and the fixed toothed member 250.
  • the tooth 244 of the months mobile engages with the second satellite wheel 249 and rotates it by two steps, i.e. a quarter turn here.
  • the gear ratio between the second satellite wheel 249 and the pinion 268 of the third board 266 is such that the latter performs a quarter-turn rotation when the second satellite wheel 249 rotates a quarter of a turn, i.e. 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 to let it assume 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 gear train for displaying 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 input mobile 401 of the train of the days of the week to each complete revolution of the 24-hour mobile on itself.
  • the input mobile 401 has 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 mobile 407, an example of preferred structure of which will be described below. in relation to the figure 5 .
  • connection between the reference 402 and the plate 210 of the 24-hour mobile 201 is here again of the Maltese cross type, that is to say that the teeth of the reference 402 slide on the periphery of the plate 210 except when the tooth 211 rotates it once a day.
  • the rotation of the first wheel 406 here causes that of a second wheel 408 of the friction mobile.
  • the latter is engaged with a pinion 410 of a reduction gear, the wheel 412 of which is arranged in engagement with the teeth of the disc 3 for displaying the days of the week.
  • each day when the 24-hour mobile 201 makes a turn on itself, it causes the counter 4 to display the days of the week to advance one step.
  • a jumper 413 is arranged to ensure the correct positioning of the wheel 412 of the reduction 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 element of the corresponding watch movement by means of a shaft (not shown) cooperating with a hole 416 in the lever.
  • a non-visible push button is intended to act on a receiving surface 418 to rotate the lever counterclockwise on the figure 4 .
  • the lever 414 carries a leaf spring 420 leaning 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 pressure on a twelve-pointed star 423 carried by a day correction mobile 424, by means of the spring blade 420, to rotate it d 'one step clockwise.
  • the day correction mobile comprises a wheel 426 having a kinematic connection with the second wheel 408 of the friction mobile 407, by through a reference 428. Therefore, each pressure exerted on the control lever 414 has the effect of advancing the disc 3 for displaying the 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 day correction mobile 424 is also driven in the clockwise direction on the figure 4 .
  • the leaf spring 420 is arranged to deform elastically to allow the branch concerned with 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 mobile 407.
  • the first and second wheels 406, 408 of the friction mobile are coupled by means of a crown 430, substantially in the shape of a star and integral in rotation with the first wheel 406, and with 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 arms 434 in the shape of an S carrying, in pairs and between them, spouts 436 intended to cooperate with the crown 430 to define stable relative angular positions between the two wheels 406 and 408 .
  • Each of the spouts 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 spouts 436 while maintaining the angular positioning of the spring relative to the second wheel 408.
  • the crown 430 exerts a force on the spouts 436 of the spring 432 to drive this last in rotation and drive the second wheel 408 at the same time.
  • the day of the week display is then changed.
  • the second wheel 408 In 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 for 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 turns, it causes deformation of the arms 434 of the spring 432 to allow the spouts 436 to pass through the teeth of the crown 430.
  • the second wheel 408 turns on itself while the first wheel 406 remains stationary.
  • the input mobile 401 is arranged in direct engagement with the day correction mobile 424, the latter being engaged with the disc 3 for displaying the days of the week by the intermediate of the pinion 410 and the wheel 412 of the reduction gear.
  • the Maltese cross type connection as described above between the plate 210 of the 24-hour mobile and the input mobile 401, 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 gear carries a 7-pointed star arranged to cooperate with a positioning jumper, to ensure the correct positioning of the disc 3 for displaying the days of the week.
  • the latter comprises a sliding pinion 450 mounted on a rocker 452 capable of being moved between first and second angular positions as a function of the axial positions of the winding stem.
  • the rocker 452 pivots clockwise to place the sliding pinion 450 in engagement with the teeth 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 in partial transparency illustrating the transmission planned between the date display disc 1 and the month display disc 2.
  • the date display disc 1 carries a month drive ring 601, visible in transparency under the disc 1 on the figure 6 .
  • This ring 601 cooperates with the pinion 602 of a reduction gear 604 in the form of a Maltese cross type connection as described above. It indeed has a periphery of constant radius such that the pinion cannot 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 counterclockwise rotation direction of two steps per month, by way of nonlimiting illustration.
  • the reduction gear further comprises a wheel 610 secured to the pinion 602 in rotation and arranged in engagement with the month display disc 2.
  • a wheel 610 secured to the pinion 602 in rotation and arranged in engagement with the month display disc 2.
  • the angular position of the reduction gear 604 is further reinforced here by an optional jumper 612.
  • this cog comprises a number of mobiles adapted to allow the multiplication of information relating to the change of month until an indication of leap years which are spread over 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 522 program mobile in such a way that the number of days in different months is taken into account to control the display of the calendar, in a similar way to what has been described in relation to the first embodiment.
  • the program mobile 522 has 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 for correcting 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 form 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 formed in the corresponding movable tooth.
  • the elastic member is produced 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 ensure 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 intended to accommodate a mobile 538 months.
  • the 538 months mobile presents the general shape of a crown on 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 single 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 other three.
  • the function of the cam 540 is similar to that of the cam 240 described above, in relation to 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 month mobile 538 has an internal toothing 545.
  • the first board 524 also includes first and second fingers 546, 547 intended to serve as support, respectively, for first and second satellite 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 element of the watch movement not shown.
  • the toothed member carries a single tooth 551 arranged to cooperate with the first satellite wheel 548 and to rotate it on itself when it passes in front of it.
  • the rotation of the first satellite wheel 548 causes a rotation of the month mobile 538 with reference to the first plate 524, by cooperation with its internal toothing 545.
  • the rotation of the month 538 mobile 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 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 made integral with the first board 524 by means of screws 554, in particular to keep the assembly which has just been described assembled.
  • 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 of 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, the free end of which is housed in a suitable slot of 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, made in the second board, to ensure radial guidance of the tooth when it is 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 to the latter.
  • a first level of the correction mobile 566 comprises a toothing 568 intended to mesh with the second satellite wheel 549 to induce a rotation of the correction mobile 566 relative to the first board 524.
  • a second level of the correction mobile 566 comprises a second cam 570, similar to the first cam 540 and, the periphery of which has a variable external radius. More specifically, the periphery of the cam 570 has six bosses 571, with reference to a base radius, diametrically opposite in pairs, and arranged in such a way that two inactive portions 572, diametrically opposite from each other, are provided to define two series of three successive bosses.
  • a closing cover 574 is provided to hold the assembled assembly, being made integral with the first board 524 by means of the screws 554.
  • the figure 8 shows a top view illustrating the nature of the cooperation between some of the components which have just been described, in a similar manner 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 non-limiting illustration, while the mechanism according to the first embodiment is arranged to such that the cam 270 has cycles of 4 years with reference to the second plate 252.
  • a counting device for calendar mechanism comprising a control mechanism comprising a month mobile, rotatably mounted on a first board of a mobile program and carrying a cam of variable radius arranged to cooperate with a mobile tooth to define the position, according to the number of days in the current month, without departing from the scope of the present invention.
  • the shapes illustrated and described for the cams 240, 270, 540 and 570 are only illustrative, as is 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 of constant thickness and that this ring is engaged in a groove formed transversely in each tooth instead of simply being disposed at the rear of the movable tooth concerned to push it.
  • the cam when the cam turns 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, that is to say in both directions.
  • the cam could have alternating hollows and columns, like 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 produced in one or in several parts without affecting the implementation of the present invention, the movable teeth being able in particular to be produced in one piece with it or not. .

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

Claims (18)

  1. Zählvorrichtung für einen Kalendermechanismus eines Uhrwerks, umfassend ein ortsfestes gezahntes Element (250, 550) und ein Programmdrehteil (222, 522), die koaxial sind, wobei Letzteres umfasst:
    eine erste drehende Platte (224, 524), die eine Außenzahnung (225, 525) aufweist,
    eine Vorrichtung zur Korrektur kurzer Monate, die von der ersten Platte (224, 524) getragen wird und mindestens einen ersten Zahn (228, 528) umfasst, der in Bezug auf die erste Platte zwischen einer ersten eingefahrenen Position und einer zweiten ausgefahrenen Position, in der er zu der Zahnung (225, 525) der ersten Platte durch Aneinanderreihung oder Überlagerung hinzugefügt wird, beweglich ist, und
    einen Steuermechanismus (238, 248, 538, 548), der dazu ausgebildet ist, die Position des ersten beweglichen Zahns (228, 528) zu definieren, und mindestens ein erstes Rad umfasst (248, 548), das in Eingriff mit dem ortsfesten gezahnten Element (250, 550) steht,
    wobei der Steuermechanismus ein Drehteil für die Monate (238, 538) umfasst, das drehbar auf der ersten Platte (224, 524) gelagert ist, das eine Zahnung (245, 545) umfasst, die eine kinematische Verbindung mit dem ersten Rad (248, 548) aufweist, und das einen ersten Nocken (240, 540) mit veränderlichem Radius trägt, der dazu ausgebildet ist, mit dem ersten beweglichen Zahn (228, 528) zusammenzuwirken und dessen eingefahrene oder ausgefahrene Position in Abhängigkeit von der Winkelausrichtung des ersten Nockens (240, 540) und unter Einsatz einer im Wesentlichen radialen Führung zu definieren.
  2. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, dass das erste Rad (248, 548) ein Satellitenrad ist, das drehbar entlang einer mit der ersten Platte (224, 524) fest verbundenen Achse (246, 546) gelagert ist, und dass die Zahnung (245, 545) des Drehteils für die Monate (238, 538) eine Innenzahnung ist.
  3. Vorrichtung nach Anspruch 1 oder 2, insbesondere für einen Mechanismus eines Jahreskalenders oder ewigen Kalenders eines Uhrwerks, dadurch gekennzeichnet,
    dass sie einen zweiten Zahn (229, 529) umfasst, der in Bezug auf die erste Platte (224, 524) zwischen einer ersten eingefahrenen Position und einer zweiten ausgefahrenen Position, in der er zu der Zahnung (225, 525) der ersten Platte durch Aneinanderreihung oder Überlagerung hinzugefügt wird, beweglich ist, und
    dass der erste Nocken (240, 540) dazu ausgebildet ist, mit dem zweiten beweglichen Zahn (229, 529) derart zusammenzuwirken, dass er auch dessen Position definiert.
  4. Vorrichtung nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass die Vorrichtung zur Korrektur kurzer Monate ein erstes elastisches Element (227, 527) umfasst, das dazu ausgebildet ist, auf den oder die beweglichen Zähne (228, 229, 528, 529) einzuwirken und mindestens eine der ersten und zweiten Positionen zu definieren.
  5. Vorrichtung nach Anspruch 4, dadurch gekennzeichnet, dass das erste elastische Element (227, 527) einen elastisch verformbaren Arm je beweglichem Zahn (228, 229, 528, 529) umfasst, von denen jeder einen Endabschnitt aufweist, der dem entsprechenden beweglichen Zahn (228, 229, 528, 529) zugeordnet ist.
  6. Vorrichtung nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, dass der erste Nocken (240, 540) einen Umfang aufweist, der derart ausgebildet ist, dass er bei Bedarf auf den ersten beweglichen Zahn (228, 528) oder auf den ersten und den zweiten beweglichen Zahn (228, 229, 528, 529) derart einwirkt, dass er einen Druck auf sie ausübt und sie in Richtung ihrer ausgefahrenen Position drückt.
  7. Vorrichtung nach einem der Ansprüche 4 bis 6, dadurch gekennzeichnet, dass das erste elastische Element (227) eine Grundform eines offenen Rings aufweist, der eine Nase (230) umfasst, die dazu ausgebildet ist, mit Anschlagflächen (232) zusammenzuwirken, die in der ersten Platte (224) angeordnet sind, um das elastische Element (227) drehfest mit der ersten Platte (224) zu verbinden.
  8. Vorrichtung nach einem der Ansprüche 4 bis 7, dadurch gekennzeichnet, dass sie ein zweites elastisches Element (257, 557) zur Schaltjahreskorrektur umfasst, das drehfest mit der ersten Platte (224, 524) verbunden ist und auf einen dritten Zahn (258, 558) einwirkt, der in Bezug auf die erste Platte zwischen einer ersten eingefahrenen Position und einer zweiten ausgefahrenen Position, in der er zu der Zahnung (225, 525) der ersten Platte (224, 524) durch Aneinanderreihung oder Überlagerung hinzugefügt wird, beweglich ist, wobei der Steuermechanismus auch dazu ausgebildet ist, die Position des dritten beweglichen Zahns (258, 558) zu definieren.
  9. Vorrichtung nach Anspruch 8, dadurch gekennzeichnet, dass der Steuermechanismus umfasst:
    ein zweites Rad (249, 549), das eine kinematische Verbindung mit dem Drehteil für die Monate (238, 538) aufweist,
    ein Drehteil zur Schaltjahreskorrektur (266, 566), das drehbar auf der ersten Platte (224, 524) gelagert ist und eine Zahnung (268, 568) umfasst, die eine kinematische Verbindung mit dem zweiten Rad (249, 549) aufweist, und
    einen zweiten Nocken (270, 570) mit variablem Radius trägt, der dazu ausgebildet ist, mit dem dritten beweglichen Zahn (258, 558) zusammenzuwirken und dessen Position zu definieren.
  10. Vorrichtung nach Anspruch 9, dadurch gekennzeichnet, dass das zweite Rad (249, 549) ein Satellitenrad ist, das drehbar entlang einer mit der ersten Platte (224, 524) fest verbundenen Achse (246, 547) gelagert ist.
  11. Vorrichtung nach Anspruch 9 oder 10, dadurch gekennzeichnet, dass das zweite Rad (249, 549) in Eingriff mit einer zusätzlichen Zahnung (244, 544) des Drehteils für die Monate (238, 538) steht.
  12. Vorrichtung nach einem der Ansprüche 8 bis 11, dadurch gekennzeichnet, dass das zweite elastische Element (257, 557) mindestens einen Arm umfasst, der elastisch verformbar ist und einen Endabschnitt aufweist, der mit dem dritten beweglichen Zahn (258, 558) fest verbunden ist.
  13. Vorrichtung nach einem der Ansprüche 8 bis 12, dadurch gekennzeichnet, dass sie ferner eine zusätzliche Platte (252, 552) umfasst, die mit der ersten Platte (224, 524) fest verbunden ist und eine Aufnahme (256, 262, 556) für das zweite elastische Element (257, 557) derart aufweist, dass Letzteres drehfest mit der zusätzlichen Platte verbunden ist.
  14. Vorrichtung nach einem der Ansprüche 8 bis 13, dadurch gekennzeichnet,
    dass sie ein Antriebsdrehteil (201) für das Programmdrehteil (222, 522), das eine erste Zahnung (204) aufweist, die eine erste Ebene definiert und dazu bestimmt ist, seinen Antrieb ausgehend von einem Drehteil eines Uhrwerks zu ermöglichen, mindestens erste, zweite und dritte Zähne (206), die in mindestens einer zweiten Ebene gelegen sind, und mindestens einen vierten Zahn (208) umfasst, der eine dritte Ebene entlang der axialen Richtung des Antriebsdrehteils (201) definiert, und dass zum einen der erste (228, 528), der zweite (229, 529) und der dritte (258, 558) bewegliche Zahn und zum anderen die Zahnung (225, 525) der ersten Platte (224, 524) gegenüber der zweiten bzw. der dritten Ebene angeordnet sind,
    wobei der erste, der zweite und der dritte Zahn (206) des Antriebsdrehteils (201) außerhalb der Reichweite der Zahnung (225, 525) der ersten Platte (224, 524) gelegen sind.
  15. Vorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass das Programmdrehteil (222, 522) eine kinematische Verbindung mit einem Datumsanzeigeelement (1) aufweist.
  16. Vorrichtung nach Anspruch 15, dadurch gekennzeichnet, dass das Programmdrehteil (222, 522) auch eine kinematische Verbindung mit einem Wochentaganzeigeelement (3) und/oder mit einem Monatsanzeigeelement (2) und/oder mit einem Schaltjahranzeigeelement aufweist.
  17. Uhrwerk mit einer Zählvorrichtung nach einem der vorhergehenden Ansprüche.
  18. Uhr mit einem Uhrwerk nach Anspruch 17.
EP14729694.1A 2013-06-14 2014-06-13 Kalendermechanismus für ein uhrwerk Active EP3008523B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP14729694.1A EP3008523B1 (de) 2013-06-14 2014-06-13 Kalendermechanismus für ein uhrwerk

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP13172171.4A EP2813902A1 (de) 2013-06-14 2013-06-14 Kalendermechanismus für Uhrwerk
PCT/EP2014/062484 WO2014198954A2 (fr) 2013-06-14 2014-06-13 Mecanisme de calendrier pour mouvement horloger
EP14729694.1A EP3008523B1 (de) 2013-06-14 2014-06-13 Kalendermechanismus für ein uhrwerk

Publications (2)

Publication Number Publication Date
EP3008523A2 EP3008523A2 (de) 2016-04-20
EP3008523B1 true EP3008523B1 (de) 2020-01-22

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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.
EP3608729A1 (de) * 2018-08-09 2020-02-12 Rolex Sa Kalendervorrichtung für uhr
CH715471B1 (fr) * 2018-10-25 2023-02-28 Lvmh Swiss Mft Sa Mécanisme horloger pour quantième, notamment pour quantième perpétuel.
IT201900004735A1 (it) * 2019-03-29 2020-09-29 La Vallee S R L Dispositivo indicatore per orologeria
JP2022099297A (ja) * 2020-12-22 2022-07-04 ロレックス・ソシエテ・アノニム ノッチシステム用ばね及び時計ノッチシステム
CH718699A1 (fr) * 2021-06-01 2022-12-15 Richemont Int Sa Système d'affichage de quantième perpétuel à correction séculaire.

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Publication number Priority date Publication date Assignee Title
CH684815B5 (fr) * 1993-07-15 1995-07-14 Longines Montres Comp D Mécanisme de quantième annuel pour pièce d'horlogerie.
DE60230011D1 (de) * 2002-04-02 2009-01-08 Nardin Ulysse Sa Vorrichtung mit Programmrad für den Mechanismus eines ewigen Kalenders sowie Uhr mit solchem Mechanismus
CN100395672C (zh) * 2004-03-16 2008-06-18 伍凌宇 手表万年历机构
EP1868047A1 (de) * 2006-06-12 2007-12-19 Vaucher Manufacture Fleurier SA Uhr mit einem Kalendarmechanismus
CH699102B1 (fr) * 2008-07-10 2015-03-31 Richemont Int Sa Mobile d'entraînement bidirectionnel, pièce d'horlogerie le comportant et mécanisme indicateur de quantième ou de mois.

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Also Published As

Publication number Publication date
CN105683844A (zh) 2016-06-15
WO2014198954A3 (fr) 2016-01-14
EP3008523A2 (de) 2016-04-20
CN105683844B (zh) 2019-03-19
EP2813902A1 (de) 2014-12-17
WO2014198954A2 (fr) 2014-12-18

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