Classifications

• • G—PHYSICS
  • G04—HOROLOGY
  • G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
  • G04B19/00—Indicating the time by visual means
  • G04B19/24—Clocks or watches with date or week-day indicators, i.e. calendar clocks or watches; Clockwork calendars
  • G04B19/243—Clocks or watches with date or week-day indicators, i.e. calendar clocks or watches; Clockwork calendars characterised by the shape of the date indicator
  • G04B19/247—Clocks or watches with date or week-day indicators, i.e. calendar clocks or watches; Clockwork calendars characterised by the shape of the date indicator disc-shaped
• • G—PHYSICS
  • G04—HOROLOGY
  • G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
  • G04B19/00—Indicating the time by visual means
  • G04B19/24—Clocks or watches with date or week-day indicators, i.e. calendar clocks or watches; Clockwork calendars
  • G04B19/243—Clocks or watches with date or week-day indicators, i.e. calendar clocks or watches; Clockwork calendars characterised by the shape of the date indicator
  • G04B19/247—Clocks or watches with date or week-day indicators, i.e. calendar clocks or watches; Clockwork calendars characterised by the shape of the date indicator disc-shaped
  • G04B19/253—Driving or releasing mechanisms
  • G04B19/25333—Driving or releasing mechanisms wherein the date indicators are driven or released mechanically by a clockwork movement
  • G04B19/2534—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

Definitions

• the present invention relates to a display mechanism for a timepiece, more particularly a mechanism for displaying in a window of a timepiece.
• the invention also relates to a timepiece movement comprising such a display mechanism as well as a timepiece such as a wristwatch, a pocket watch, a pendulum, or a pendulum comprising such a movement.
• An object of the invention is to provide a display mechanism which at least partially overcomes the aforementioned drawbacks.
• the invention provides a display mechanism for a timepiece comprising a frame, a stationary window relative to the frame and a first and a second display disc each carrying indications, characterized in that it allows display the indications of the first and second discs alternately through said window.
• the invention also provides a timepiece movement comprising such a mechanism as well as a timepiece comprising such a timepiece movement.
• the mechanism comprises a control means which can be actuated manually by the user of said timepiece to change the disc, at least one indication of which can be read through said window.
• said control means can typically be actuated from outside the case of said timepiece.
• the mechanism according to the invention allows the display of information carried by different discs alternately through the same window. This alternation of the disc readable through the window is typically done manually, at the request of the user.
• the information carried by the different disks is typically different indications, for example different time quantities.
• the discs are movable relative to each other and each of the first and second discs is rotated around its center of rotation at its own pace, typically different from that of the other disc.
• Figures 1 a to 1 c show, in top view and by transparency, part of a mechanism according to a first embodiment of the invention in successive configurations reached during its operation, said mechanism being adjusted to display the calendar of the month;
• Figures 2a to 2c show, in top view and by transparency, a part of the mechanism shown in Figures 1 a to 1 c in successive configurations during its operation during an adjustment allowing to pass from the display of the calendar of the month to the display of the day of the week;
• FIG. 3 illustrates in top view and by transparency a mechanism according to a second embodiment of the invention
• Figure 4 illustrates in perspective and in bottom view a section along the axis l-l of the mechanism illustrated in Figure 3;
• FIG. 5a to 5c show, in top view and by transparency the mechanism illustrated in Figure 3 in successive configurations achieved when an actuating means which it comprises is activated;
• FIG. 6a to 6c illustrate a top view and by transparency the mechanism illustrated in Figure 3 in successive configurations achieved during its operation, said mechanism being adjusted to display the calendar of the month;
• Figure 7 illustrates in top view and by transparency the mechanism illustrated in Figure 3 in a configuration taken during the correction of the date of the month;
• FIGS. 8a and 8b illustrate a top view of a part of a mechanism according to a third embodiment of the invention in two different configurations reached when an actuating means which it comprises is activated;
• FIG. 9a and 9b illustrate a top view of part of a mechanism according to a fourth embodiment of the invention in two different configurations reached when an actuating means which it comprises is activated;
• FIG. 10a and 10b illustrate a top view of a part of a mechanism according to a fifth embodiment of the invention in two different configurations reached when an actuating means which it comprises is activated;
• FIGS 11 a and 1 1 b illustrate a top view of a part of a mechanism according to a sixth embodiment of the invention in two different configurations reached when an actuating means which it comprises is activated.
• a display mechanism 1 according to a first embodiment of the invention comprises a plate 100, a rocker 101, a date disc 1051, a day disc 1052, and a means of control of said flip-flop 101.
• Such a mechanism 1 is typically integrated into a watch movement, for example in a timepiece such as a pocket watch, a wrist watch, a pendulum or a pendulum.
• the date disc 1051 typically an annular disc, has a graduation 1061 comprising thirty-one indications, corresponding to the dates of the months, uniformly distributed over a circumference of its upper surface. These indications are arranged in ascending order in the opposite direction to the direction of rotation of the date disc 1051, that is to say counterclockwise, and are intended to move opposite a window 107 typically produced in a dial of a timepiece in which the display mechanism 1 is integrated. In Figures 1 a to 1 c, the dial is not shown but the position of the window 107 is materialized.
• the date disc 1051 is typically carried by a ring 1021 with internal toothing comprising thirty-one teeth and called the date ring 1021.
• the day disc 1052 has a graduation 1062 comprising seven indications corresponding to the names of the days of the week, these indications being uniformly distributed over a circumference of its upper surface. These indications 1062 are arranged in chronological order of the days in the opposite direction to the direction of rotation of the days 1052 disc, that is to say clockwise and are intended to be read through the window 107 previously mentioned.
• the day disc 1052 is typically carried by a toothed wheel 1022 called the day wheel 1022. It is for example glued, driven out, screwed or brazed thereon. Alternatively, the day disc could directly include the toothing.
• the 1051 date disc and the 1052 day disc allow the display of different time quantities and therefore have different rotation rhythms: a thirty-first revolution per day for the 1051 date disc and a sixth of a revolution per day for the 1052 days record.
• the rocker 101 is intended to pivot around an axis of rotation A1, fixed relative to the plate 100. It is rotated around this axis A1 by means of an actuating mechanism 108 comprising a pinion actuation 108a and an actuation wheel 108b, as shown in FIGS. 1 a to 2c.
• the actuating pinion 108a is integral with the rocker 101 and meshes with the actuating wheel 108b whose rotational movements are controlled by the user by means of an actuation means not illustrated such as a rod one end of which is accessible from the outside of the timepiece in which the mechanism 1 is integrated and the other end of which carries a rack meshing with the actuating wheel 108b.
• the assembly comprising said actuating mechanism 108 and actuating means constitutes the "control means" of the display mechanism 1.
• the rocker 101 Independently of the actuating pinion 108a, the rocker 101 carries a driving mobile 1031 comprising a first toothed wheel 1031 a with sixty teeth and a second toothed wheel 1031 b with six coaxial teeth, these wheels being integral in rotation with one the other and free to rotate around the axis A1.
• the first 1031 has cogwheels of this driving mobile 1031 is kinematically connected to the gear train of the clockwork movement to which the display mechanism 1 is integrated so that the two wheels 1031 a, 1031 b of this mobile typically perform a sixth of a turn every 24 hours.
• the second 1031 b of the toothed wheels of this driving mobile 1031 meshes with the internal toothing of the date ring 1021. It takes one step every 24 hours and rotates said ring 1021 by one step every 24 hours, thereby passing the date display from one indication to the next each day.
• the first 1031 has wheels of said mobile 1031 meshes with the day wheel 1022 which is carried by the rocker 101.
• This day wheel 1022 is mobile in rotation around an axis of rotation A2 distinct from the axis A1 and typically parallel to this axis A1, the axis A2 being fixed relative to the rocker 101 and movable in rotation relative to the plate 100.
• the gear ratio between this day wheel 1022 and the second wheel 1031 b of the driving mobile 1031 is such that this day wheel 1022 is rotated at a rate of one seventh of a revolution per day.
• FIGS. 2a to 2c illustrate the passage from the first of said extreme positions to the second of said extreme positions when the actuating mechanism 108 is actuated via the actuation means.
• FIG. 2b represents an intermediate position between said two extreme positions.
• the two extreme positions that the rocker 101 takes during the operation of the display mechanism 1 define its angular movement. In this example, it is around 30 °. These extreme positions are reached at each alternation of the direction of rotation of the rocker 101.
• the display mechanism 1 is designed so that the relative position of the lever 101 relative to the plate 100 does not affect either the rotation of the day disc 1052 or that of the date disc 1051. Indeed, the position of the center of rotation A1 is fixed during the pivoting of the rocker 101 so that the first wheel 1031 a of the driving mobile 1031 can be driven in rotation continuously by the gear train.
• the second wheel 1031 b of the driving mobile 1031 being integral with it, it is permanently able to drive the date disc 1051 in rotation.
• the day wheel 1022 and its axis of rotation A2 move with the rocker 101, this wheel 1022 therefore meshes with the first toothed wheel 1031 at whatever the position of the rocker 101.
• the day disc 1052 is therefore driven in rotation at a rate of one seventh of a day, regardless of the position of the scale 101.
• the display mechanism 1 operates in a trailing manner but it could easily be modified to operate instantaneously (by jumps), that is to say typically in a few milliseconds.
• the driving mobile 1031 could comprise an additional six-tooth star coaxial and integral in rotation with the first 1031 a and second 1031 b toothed wheels of the driving mobile 1031, this star being driven in instantaneous rotation by one step every 24 hours under the effect of a finger carried by a rocker carrying a feeler, said feeler being held against a spiral kinematically connected to the gear train of the watch movement in which said display mechanism 1 is integrated and suddenly falling every 24 hours.
• the actuating means is typically designed to allow the display of the day of the week, either when it is held down or when it is held down.
• the actuating means may be designed to return automatically to its initial position or may, on the contrary, remain locked in the position which the user has just imposed on it until it does not activate it again.
• the actuating means could be other than a rack rod as described above.
• this rack rod could for example be replaced by a connecting rod system.
• a connecting rod system would typically comprise a rod, one end of which would be accessible from outside the watch case and the other end of which would pivot freely around a pin fixed eccentrically on the actuating wheel 108b of the actuating mechanism 108 so as to cause the latter to rotate in one direction then in the other during its back-and-forth movements
• the rack rod could be replaced by a rod, one end of which would be accessible from outside the watch case and the other end of which would be fixed to a first end of a spring cable wrapped around the axis of rotation of the actuating wheel 108b.
• the second end of this spring cable would be fixed to said axis of rotation so that the reciprocating movements of said rod would cause the wheel 108b to rotate alternately in one direction and then in the other.
• Such a display mechanism 1 has the advantage of allowing the display of two different pieces of information, here different time quantities, alternately in the same window, the user being able, simply by acting on an actuating means, to command the flip-flop 101 to choose the information (date or day of the week) that he wishes to be able to read through the window 107. This allows, while offering the user the possibility of learning about different information, do not overload the dial with multiple windows.
• a display mechanism 3 according to a second embodiment of the invention comprises a plate 300, a drive pinion 303 comprising twenty teeth pivoted on this plate and a support 301 on which are pivoted a date display disc 3051 secured to a date ring 3021 comprising three hundred and ten teeth, a day display disc 3052 secured to a day ring 3022 comprising one hundred and forty teeth, a mobile for driving calendar 3041 and a training mobile for days 3042.
• the display mechanism 3 also includes a correction wheel
• Such a display mechanism 3 is typically integrated into a watch movement, for example of a timepiece such as a pocket watch, a wrist watch, a pendulum or a pendulum.
• the date disc 3051 is typically an annular disc. It includes a graduation 3061 comprising thirty-one indications corresponding to the dates of the months ranging from 1 to 31, these indications being uniformly distributed over a circumference of its upper surface and intended to be read through a window 307 whose position is fixed relative to the plate 300.
• the window 307 is typically produced in a dial positioned above the display discs 3051, 3052. In FIGS. 3 and 5a to 7, the dial is not shown but the position of window 307 is materialized.
• the day disc 3052 is typically an annular disc. It comprises a graduation 3062 comprising fourteen indications corresponding to two series of the seven days of the week, these indications being uniformly distributed over a circumference of its upper surface and intended to be read through the window 307.
• the date disc 3051 and the day disc 3052 allow the display of different time quantities and therefore have different rotation rhythms: a thirty-first turn per day for the date disc 3051 and a fourteenth turn per day for the 1052 days record. They rotate here in opposite directions.
• the date disks 3051 and days 3052 are concentric.
• the day disc has a diameter smaller than the diameter of the date disc and is arranged inside the latter.
• the day and date discs are therefore in the same plane, typically parallel to the stage 300.
• the display mechanism 3 makes it possible, at the command of a user, to manually change the disc 3051, 3052, the information of which can be read through the window 307.
• the support 301 and the driving mobiles 3041, 3042, the discs d display 3051, 3052 and the toothed rings 3021, 3022 which it carries are intended to pivot around an axis of rotation A7, coincident with the axis of rotation of the drive pinion 303, between two extreme positions, thus changing the indication readable through the window 307. In this way, it can alternately display the day or the date.
• actuation means (not shown) which controls an actuation mechanism which includes the display mechanism 3.
• This actuation mechanism comprises an actuation lever 309, first 310 and second 312 mobile and a jumper 31 1, pivoted in the frame 300.
• the first mobile 310 comprises a star of seven teeth 310a and an actuating wheel with seventy teeth 310b coaxial and integral in rotation with one another. It is positioned by the jumper 31 1, the spout of which is held in abutment against the teeth of the star 310a by a spring (also not shown).
• the second mobile 312 comprises for its part a pinion with twenty teeth 312a coaxial with axis A10 and integral in rotation with a circular board 312b carrying an eccentric stud 312c.
• the actuation of the actuation means causes the rocker 309 to pivot in the counterclockwise direction.
• the torque exerted by the lever 309 on the star 310a causes the jumper 31 1 to be raised, which lets a tooth pass through the star 310a and then reposition it.
• the actuation of the actuation means causes the pivoting of one step of the star 310a and ten steps of the actuation wheel 310b in the clockwise direction.
• the actuating wheel 310b meshing with the pinion 312a of the second mobile 312, this causes a half-turn of the second mobile 312 and its stud 312c to rotate around the axis A10.
• the support 301 comprises an oblong slot 301 a in which slides the stud 312c of the second mobile 312.
• This support 301 is also guided in rotation around the axis A7. It is typically able to pivot around the axis A7 when the pin 312c moves in the oblong slot 301 a, so that it only pivots when the second mobile 312 rotates, that is to say when the actuating means is actuated.
• the support 301 as well as the driving mobiles 3041, 3042, display discs 3051, 3052 and toothed rings 3021, 3022 which it door pivot around the A7 axis in one direction then in the other between two extreme positions.
• the first of these extreme positions corresponds to the position illustrated in particular in FIG. 5a.
• part of the date disc 3051 is located opposite the window 307 so that one of the indications of the graduation 3061 corresponding to a date number, typically the indication "1", can be fully readable through this window 307.
• This first extreme position of the support 301 corresponds to a “reading position of the date disc”.
• the second of these extreme positions corresponds to the position illustrated in particular in FIG. 5c.
• part of the disc of days 3052 is located opposite the window 307 so that one of the indications of the graduation 3062 corresponding to a day of the week can be fully readable through this window 307, typically the 'LUN indication.
• This second extreme position of the support 301 corresponds to a "reading position of the days disc”.
• FIG. 5b illustrates one of the configurations in which the display mechanism 3 is found when the support 301 switches between its two reading positions.
• the axes of rotation of the various members of the actuation mechanism are fixed with respect to the plate 300 when passing from one reading position to another.
• the assembly comprising the actuation mechanism and the actuation means constitutes a "control means" of the mechanism 3.
• the display mechanism 3 is designed so that, regardless of the reading position in which it is located, each day, typically instantaneously at midnight, the date disc 3051 performs a thirty-first revolution in the clockwise and the day display disc 3052 performs a fourteenth of a turn counterclockwise around a common axis of rotation A6 fixed relative to the support 301 and corresponding to the common center of the date discs 3051 and of the days 3052 considered in top view.
• This axis A6 being fixed relative to the support 301 it is obviously movable relative to the plate 300 when the user acts on the actuating means to change the reading position.
• the drive pinion 303 is kinematically connected to the finishing train (not shown) of the watch movement in which the display mechanism 3 is integrated so as to instantaneously make a half-turn counterclockwise (seen from above) ) every day at midnight, as illustrated in Figures 6a to 6c. The rest of the time, the pinion 303 is stationary relative to the plate 300.
• the drive pinion 303 When it rotates, the drive pinion 303 simultaneously drives the date drive mobiles 3041 and days 3042 which in turn drive the date display discs 3051 and days 3052 via their toothed rings 3021, 3022.
• the date training mobile 3041 includes a lower date wheel 3041 a, an upper date wheel 3041 b and a coaxial star 3041 c with axis A8 as well as a jumper 3041 d (embedded) fixed to the upper date wheel 3041 b and positioning the latter relative to the star 3041 c.
• the star 3041 c of this mobile 3041 comprises eight teeth and is integral with the lower date wheel 3041 a which comprises eighty teeth.
• the upper wheel 3041 b is identical to the lower wheel 3041 a and therefore also includes eighty teeth. It is free to rotate relative to the lower wheel 3041 a and typically meshes with the teeth of the date ring 3021.
• the day training mobile 3042 is identical to the date training mobile 3041, it includes a lower date wheel 3042a, an upper date wheel 3042b and a coaxial star 3042c of axis A9 as well as '' a jumper 3042d (on-board) fixed to the upper date wheel 3042b and positioning the latter relative to the star 3042c.
• the star 3042c of this mobile 3042 includes eight teeth and is integral with the wheel lower date 3042b which includes eighty teeth.
• the upper wheel 3042b is identical to the lower wheel 3042a and therefore also includes eighty teeth. It is free to rotate relative to the lower wheel 3042a and meshes with the teeth of the day ring 3022.
• the drive pinion 303 simultaneously meshes with the lower wheels 3041a, 3042a of the display mobiles 3041, 3042, respectively.
• the drive pinion 303 Insofar as the drive pinion 303 is stationary during this pivoting, it causes a slight rotation of each of the display discs 3051, 3052 relative to the support 301 around the axis A6. This slight rotation is of course taken into account in the arrangement of the display disks 3051, 3052 relative to the window 307 so that, whatever the reading position of the display mechanism 3, a date indication 3061 or an indication of the days 3062 is fully legible through the window 307.
• the display mechanism 3 allows the date of the month and the day of the week to be corrected independently, that is to say it allows the date to be corrected without impacting the day of the week and vice versa.
• the star 3041 c is integral with the lower date wheel 3041 a which meshes with the drive pinion 303 which is then stationary, the rotation of the upper date wheel 3041 b does not cause the rotation of the 'star 3041 c nor of the wheel 3041 a to which it is integral.
• the display mechanism 3 makes it possible to correct the date without correcting the day.
• the correction wheel 308 meshes with the day ring 3022 and makes it possible, in the same way, to correct the day without correcting the date.
• the correction wheel 308 can typically be actuated from outside the timepiece in which the mechanism 3 is integrated, for example using a rod, one end of which is accessible from the outside of said timepiece. timepieces and the other end of which carries a gear wheel meshing when the user wishes, for example in a pulled position, with the correction wheel 308.
• the assembly comprising the eight star 3041 c and the jumper 3041 d of the date driving mobile 3041 ensures the positioning of the upper wheel 3041 b of this mobile and of the date disc 3051 to which it is connected by gear with the toothed ring 3021 in an angular position in which a date indication can be fully visible through the window 307.
• a shock of low intensity that is to say a shock generating a torque generating a low rotation of the date disc 3051, typically a rotation of an angle corresponding to less than five teeth of the ring 2021 associated with the date disc , would ultimately have no impact. Indeed, such a low rotation of the date disc 3051 would generate a rotation of the upper date wheel 3041 b which would be insufficient for the jumper 3041 d which it carries to jump a tooth of the date star 3041 c. Under the effect of the spring force of the jumper spring 3041 d, the upper wheel of date 3041 b and the date disc 3051 would resume the place they occupied before the impact.
• the assembly comprising the eight star 3041 c and the jumper 3041 d of the mobile 3041 make it possible to ensure displacements of the date disc multiple by an angle of one thirty and -th of a turn, so that an indication of the date graduation 3061 is fully readable through the window 307.
• a violent shock that is to say a shock generating a torque generating a strong rotation of the upper date wheel 3041 b, typically a rotation of an angle corresponding to more than five teeth of the ring 2021 associated with the disc of date, could impact the display.
• a strong rotation of the date disc 3051 could cause a rotation of the upper date wheel 3041 b sufficient for the jumper 3041 d that it carries to jump a tooth of the date star 3041 c, in which case a change of the date display would occur similarly to what happens during a voluntary date correction.
• the indication to be displayed remains centered in the window (no de-indexing).
• the date training mobiles 3041 and days 3042 being identical, the assembly comprising the eight star 3042c and the jumper 3042d of the days training mobile 3042 ensures the positioning of the upper wheel 3042b of this mobile and of the day disc 3052 to which it is connected via the day ring 3022 in an angular position in which an indication of the graduation of days 3062 can be fully visible through the window 307.
• the display mechanism 3 according to the second embodiment of the invention has the advantage of not requiring the superposition of the discs. This allows them to be positioned as close as possible under the dial for a better aesthetic appearance.
• Such a display mechanism 3 could typically be used for the realization of a display with change of the reading disc spontaneously several times during the day, to display a first piece of information on predefined time slots and another piece of information the rest of the time, or for a large date display with spontaneous change of the reading disc, for example alternately after twelve days and then after nineteen days, in the case of an inner disc bearing twelve graduations and an outer disc bearing nineteen graduations. It would suffice for that to make automatic the actuation of the rocker 309.
• the date drive mobile 3041 of the display mechanism 3 according to the second embodiment of the invention could be different from that presented with reference to FIGS. 3 to 7.
• the star 3041 c could be secured to the upper date wheel 3041 b instead of being secured to the lower date wheel 3041 a.
• the jumper 3041 d, engaged in the toothing of the star 3041 c would be fixed on the lower date wheel 3041 a and not on the upper date wheel 3041 b.
• the training mobile for days 3042 could be modified in the same way.
• the display mechanism 3 illustrated in FIGS. 3 to 7 comprises:
• At least two driving mobiles 3041, 3042 each of them comprising a first coaxial toothed wheel integral in rotation with a star and a second coaxial toothed wheel of the first toothed wheel and carrying a jumper engaged in the teeth of the star ; and - First 3051 and second 3052 concentric and coplanar display discs, respectively integral with an inner toothing ring 3021 and an outer toothing ring 3022, the second disc 3052 typically having a diameter smaller than the first disc 3051 and being typically arranged inside the first, the whole being arranged so that said drive pinion 303 meshes simultaneously with one of the first and second toothed wheels of each of said mobiles 3041, 3042, the other toothed wheel of each of these mobiles one meshing with the internal toothing of the ring 3021 associated with said first display disc 3051 and the other with the external toothing of the ring 3022 associated with said second display disc 3052.
• this mechanism can be used as a drive mechanism for two discs simultaneously, independently of its ability to allow the disc to be changed, the information of which can be read through the window, that is to say typically without the need for support.
• mobile such as support 301 or control means for moving such support.
• the toothed wheels of the driving mobiles which mesh respectively with the rings with internal or external teeth are coplanar.
• they are located in the same plane as these rings, and in a space situated between these rings 3021, 3022.
• a display mechanism 4 according to a third embodiment of the invention comprises a plate 400, a date disc 4051 and a day disc 4052, coaxial with axis A1 1 fixed with respect to plate 400.
• a mechanism 4 is typically integrated into a watch movement, for example in a timepiece such as a pocket watch, a wrist watch, a pendulum or a pendulum.
• the date disc 4051 is typically an annular disc. It includes a graduation 4061 comprising thirty-one indications corresponding to the dates of the months ranging from 1 to 31, these indications being uniformly distributed over a circumference of its upper surface and intended to be read through a main window 407, the position is fixed relative to the plate 400. Its upper surface is therefore divided into thirty-one identical angular sectors typically of approximately 11 °, 60 °, each comprising an indication of the date graduation 4061.
• the main window 407 is typically produced in a dial positioned over the discs 4051, 4052. In FIGS. 8a and 8b, the dial is not shown but the position of the window 407 is materialized.
• the day disc 4052 covers the date disc 4051. It is typically an annular disc. Its upper surface is divided into twenty-eight identical angular sectors 4022, typically around 12.85 ° each. Every second angular sector 4022 includes an indication corresponding to a day of the week and each of the angular sectors 4022 which does not include any indication comprises a secondary window 401 1.
• the indications carried by the day disc form the graduation 4062 of the disc of the days 4052 and are partly visible through said secondary windows 401 1.
• the day display disk 4052 therefore comprises a total of fourteen indications forming the scale 4062, said indications being uniformly distributed over its upper surface and forming, in the chronological order of days and counterclockwise, two series of indications of the seven days of the week, two consecutive indications of the days being separated by one of said secondary counters 401 1.
• the main window 407 reveals a date indication or an indication of the day of the week.
• the display mechanism 4 comprises two types of reading positions: a first grouping together the reading positions of the date disc 4051 in which a secondary window 401 1 of the days disc 4051 is aligned under the main window 407 so that a indication of the graduation 4061 of the date disc 4051 is fully readable through the window 407, as in the example illustrated in FIG. 8a and a second grouping together the reading positions of the disc of the days 4052 in which an indication of the graduation 4062 of the days disc 4052 is fully readable through the window 407, as in the example illustrated in FIG. 8b.
• the display mechanism 4 allows, on command of a user, to manually change the disc 4051, 4052, the information of which can be read through the window 407 by rotating the day disc 4052 to change from one type of position of reading to another.
• the display mechanism 4 comprises a control means (not shown), typically accessible from outside the timepiece in which it is integrated, and allowing, when actuated, to rotate twenty-eighth of a turn the day display disc 4052 alternately in one direction then in the other.
• Such a control means allows, for example during a first actuation, the passage of the display mechanism 4 from the position illustrated in FIG. 8a to the position illustrated in FIG. 8b by rotating the day display disk. a twenty-eighth of a turn clockwise then during a second actuation, the return of the mechanism 4 from the position illustrated in FIG. 8b to that illustrated in FIG. 8a by rotating the day display disc twenty-eighth of a turn counterclockwise.
• the mechanism 4 is designed so that, whatever the type of reading position in which it is located, each day, typically instantaneously at midnight, the date display disc 4051 performs a thirty-first turn clockwise and the 4052 day display disc performs a fourteenth of a turn clockwise.
• a display mechanism 5 comprises a plate 500, a date disc 5051 and a concentric day disc 5052 with center A12 bearing indications forming respectively a graduation of date 5061 and a graduation of the days 5062, said graduations 5061, 5062 being intended to be read through a window 507 fixed relative to the plate 500.
• This window 507 is typically produced in a dial positioned above the disks display 5051, 5052. In FIGS. 9a to 9b, this dial is not shown but the position of the window 507 is materialized.
• the date disks 5051 and days 5052 are located in the same plane parallel to the plate 500. They are two annular disks.
• the day disc 5052 has a diameter smaller than the diameter of the date disc 5051 and is arranged inside the latter. The day and date discs are therefore in the same plane, typically parallel to the stage 500.
• Such a mechanism 5 is typically integrated into a watch movement, for example in a timepiece such as a pocket watch, a wrist watch, a pendulum or a pendulum.
• the display mechanism 5 allows, on command of a user, by means of a control means, to manually change the display disc 5051, 5052, the information of which can be read through the window 507 by driving in translation the set including the date discs 5051 and days 5052 as well as their axis A12 parallel to the plate 500, between two extreme positions.
• the day disc 5052 is positioned outside the field visible through the window 507. It is typically intended to be almost completely or even completely under the dial.
• the date disc 5051 is in turn positioned with a part opposite the window 507 so that, when the relative position of the date disc 5051 relative to the window 507 allows it, an indication of the graduation 5061 corresponding to the date of the month is fully readable through this window 507.
• This first extreme position corresponds to that illustrated in FIG. 9a and will be called "reading position of the date disc" in the following description of this embodiment.
• the date disc 5051 is positioned outside the field visible through the window 507. It is typically intended to be almost completely or completely under the dial.
• the day disc 5052 is in turn positioned partly opposite the window 507 so that, when the relative position of the day disc 5052 relative to the window 507 allows it, an indication of the graduation 5062 corresponding to the day of the week is fully readable through this window 507.
• This second extreme position corresponds to that of FIG. 9b and will be called “reading position of the day disc” in the following description of this embodiment.
• the control means (not shown) of the mechanism 5 is typically accessible from the outside of the timepiece in which it is integrated. It allows for example during a first actuation the translational drive of the assembly comprising the date disks 5051 and days 5052 as well as their axis A12 from the position illustrated in FIG. 9a to the position illustrated in FIG. 9b , then during a second actuation, the return of the mechanism 5 from the position illustrated in Figure 9b to that illustrated in Figure 9a by reverse translation.
• the display mechanism 5 is designed so that, regardless of the reading position in which it is located (reading position of the date disc or reading position of the day disc), each day, typically instantaneously at midnight , the date display disc 5051 performs a thirty-first turn clockwise and the day display disc 5052 performs a fourteenth turn counterclockwise around the axis A12.
• the display mechanism 5 is also designed so that the relative position of the set of discs 5051, 5052 relative to the plate 500 does not affect either the daily rotation of the day disc 5052 or that of the date disc 5051.
• the date display discs 5051 and day 5052 could typically be rotated by a mechanism similar to that according to the second embodiment of the invention.
• such a display mechanism 5 could typically be used for the production of a display with change of the reading disc spontaneously.
• Still other display mechanisms for a timepiece comprising several disks bearing indications intended to be read through a fixed window and allowing a user to manually change the disk whose information can be read through said window are possible. Examples of such mechanisms will be described below with reference to Figures 10a to 11b.
• FIGS 10a to 10b and 1 1 a to 1 1 b respectively illustrate display mechanisms 6, 7 according to a fifth and a sixth embodiment of the invention.
• Each of the mechanisms 6, 7 according to the fifth and sixth embodiments comprises a plate 600, 700, a date disc 6051, 7051 comprising thirty-one indications corresponding to the number of dates and forming a graduation 6061, 7061, and a day disc 6052, 7052 comprising seven indications corresponding to the days of the week and forming a graduation 6062, 7062, said graduations 6061, 7061 being intended to be read through a window 607, 707 fixed relative to the stage 600, 700.
• Each of the windows 607, 707 is typically produced in a dial positioned above the display disks of the mechanism 6, 7 concerned.
• the dials are not shown but the position of the windows 607, 707 is materialized.
• the date disc 6051, 7051 and the day disc 6052, 7052 lie in the same plane, parallel to the plate 600, 700.
• the day disc 6052, 7052 and the date disc 6051, 7051 are able to move, at the command of a user, together in translation in the case of mechanism 6 or separately in rotation around separate centers of rotation in the case of mechanism 7, so as to make apparent through said window 607, 707, as desired, an indication of a graduation 6061, 7061 corresponding to the calendar of the current month or an indication of a graduation 6062, 7062 corresponding to the current day of the week.
• FIGS. 10a and 10b respectively illustrate the two extreme positions that the day disc 6052 and the date disc 6051 can take when they move in translation, FIG. 10a illustrating the reading position of the date disc 6051 and FIG. 10b the disc playback position of days 6052.
• Figures 1 1 a and 1 1 b respectively illustrate the two extreme positions that can take the date disc 7051 and the day disc 7052 when they move in rotation respectively around axes A15 and A16, FIG. 11 a illustrating the reading position of the date disc 7051 and FIG. 11 b the reading position of the day disc 7052.
• Each of the display mechanisms 6, 7 is typically integrated into a watch movement, for example in a timepiece such as a pocket watch, a wrist watch, a pendulum or a pendulum.
• the display mechanism 6 is designed so that, regardless of the reading position in which it is located, each day, typically instantaneously at midnight, the date display disc 6051 performs a thirty-first of clockwise around its axis of rotation A13 and the day display disc 6052 makes a seventh of a turn counterclockwise around its axis of rotation A14.
• the display mechanism 7 is designed so that, whatever the reading position in which it is located, each day, typically instantaneously at midnight, the date display disc 7051 performs thirty-one -th of a turn clockwise around its axis of rotation A17 and the day display disc 7052 performs one-seventh of a turn counterclockwise around its axis of rotation A18. It will be clear to those skilled in the art that the present invention is in no way limited to the embodiments presented above and illustrated in the figures.
• the display disks of the display mechanism according to the invention can allow the display of information different from the date or the day of the week. For example, the names of the current day of the week and month, the day of the week and the week number, the day of the week and the moon age, the day of the week and the information that it is morning or afternoon (AM / PM), the day of the week and a second time zone, the calendar of the month and the indication if the year is a leap year or not, any indication and its translation into another language or any other combination of this information. It is also possible to envisage displaying chronograph information, an equation of time, a power reserve, information relating to an alarm such as for example the ON and OFF information, all information relating to the date and its derivatives or else to a second or third time zone.
• more than two different pieces of information could be displayed alternately in the same window.
• the display mechanism according to the invention allows the display of at least two different pieces of information alternately in the same window. This allows, while offering the user the possibility to learn about different information, not to overload the dial with multiple windows.
• control means When the control means is manually actuable by the user, the latter is able, by actuating this control means, to change the information readable through the window at any time, at least punctually.
• a mechanism can be particularly useful for displaying at least one additional information, for example necessary for the operation of a perpetual calendar mechanism with a simple display (which only displays the calendar), for correction purposes only. The mechanism would then allow, for example, the display of the current month during its correction, this information being visible through the window only for its correction.
• the plate can be replaced by another frame, fixed or mobile, for example a bridge.

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• 2018
  • 2018-09-26 EP EP18196793.6A patent/EP3629102B1/de active Active
• 2019
  • 2019-09-26 EP EP19784144.8A patent/EP3857313B1/de active Active
  • 2019-09-26 US US17/279,992 patent/US20210397132A1/en active Pending
  • 2019-09-26 WO PCT/IB2019/058176 patent/WO2020065574A2/fr unknown
  • 2019-09-26 CN CN201980063729.4A patent/CN112805634B/zh active Active
  • 2019-09-26 EP EP23207985.5A patent/EP4293431A3/de active Pending
  • 2019-09-26 JP JP2021516767A patent/JP2022502640A/ja active Pending

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