CH711679A2 - Mobile programming for watch movement. - Google Patents

Abstract

The present invention relates to a programming mobile, for watch movement, comprising main input (50) and output (56) boards as well as input (68) and output (70) tooth sectors associated with the main boards. (50, 56) and arranged to be rotatable by a programmable number of steps each turn of the main boards without driving the latter, the movements of the output tooth sector (70) being dictated by those of the tooth sector input (68). ). The programming mobile can thus cause a watch mechanism of a variable number of steps during each of the turns it performs on itself.

Description

TECHNICAL FIELD [0001] The present invention relates to a programming mobile, for watch movement, comprising a first board, input, having a toothing intended to cooperate with an actuating member of a watch movement, to allow the driving in rotation of the first board in a predefined direction of rotation, a second board, of output, coaxial with the first board being integral in rotation with the latter and, having a toothing intended to actuate a mechanism of the watch movement, a first sector toothed, input, pivotable with reference to the first board and having n + 1 teeth, with n equal to or greater than 1, through which it is intended to cooperate with the actuating member, the first toothed sector being able to take n + 1 different angular positions, with reference to the first board.

State of the art [0002] Mobiles of this type have already been disclosed, as in particular in the patent EP 1 351 104 B1, issued on November 26, 2008 in the name of Ulysse Nardin SA This patent describes a perpetual calendar mechanism meeting the characteristics stated above, wherein a program mobile comprises a first toothed plate, driven by a 24-hour wheel, and a second toothed board arranged to drive a date display mobile. This program mobile further comprises two eccentric planet wheels with reference to the boards, and relative to each other, both arranged in engagement with the same fixed central wheel. The gear ratios in play are such that the satellite wheels are likely to have teeth of sufficient length to cooperate with the 24-hour wheel and advance the first board one or two additional steps at the end of the month counting respectively 30 or 29 days.

An additional sliding finger is arranged to cooperate with the 24-hour wheel at the end of each month of February of 28 days to advance the first board an additional step, in addition to the two steps planned at the end of the month of 29 days . A gear train, with wheels having truncated teeth to fulfill the role of cams, is provided to control the position of the sliding finger.

This device is complex because it has a large number of wheels, some of which are stacked on top of each other, in addition to the sliding element, all these components being carried by the program mobile. Even though this invention aims to provide a simpler construction than the known mechanisms of the prior art, in particular by avoiding the need to use springs and latches, it is nonetheless complex to build and to adjust given the many axes necessary to ensure the mounting of different wheels.

[0004] Other types of complex programming mobiles have been described in relation to perpetual calendar mechanisms, some of which use planetary gear trains. By way of example, patent application EP 1 868 047 A1 describes a programming mobile of this type.

DISCLOSURE OF THE INVENTION [0005] A main object of the present invention is to propose a different approach, and therefore an equally different construction, from those known from the prior art, by proposing a robust, uncomplicated structure programming mobile. , and whose operation is simple and relatively flexible.

For this purpose, the present invention relates more particularly to a programming mobile of the type indicated above, characterized in that the toothing of the first board has an inactive space corresponding to at least one step, the first gear sector being capable of cooperating with the actuating member when the first board has the inactive space facing the drive member, the n + 1 angular positions of the first tooth sector are distributed on either side of the inactive space and comprise a first abutment position, in which a rotation of the toothed sector, in the predefined direction of rotation, causes a rotation of the first plank, and n programmed positions in which the toothed sector is likely to be positioned to be rotated between 0 and n additional steps without driving the first board, and that the mobile programming has o a second output tooth sector, comprising at least n + 1 teeth, arranged to pivot with reference to the second board according to the rotational movements of the first tooth sector and intended to cooperate with the mechanism of the watch movement to actuate it between 0 and n times more each complete turn of the first board.

With these features, the mobile programming according to the present invention can be constructed in such a way that it can transmit a preset number of steps for each complete revolution of its first board, from an actuating member of a movement to a mechanism to be actuated, while the first and second sectors toothed can transmit up to a number n of additional steps each turn, this number of additional steps can be preferably programmed to take a different value each turn of the mobile.

Indeed, once per turn, the first board has its inactive space opposite the actuating member. At this time, the first toothed sector has its teeth facing the actuating member. Or, the first toothed sector is in its abutment position and it drives the first board a step when it is itself driven by the actuating member, or it has been programmed beforehand to be driven until The first board is driven without causing the first board to be driven until the first tooth sector is returned to its abutment position. The watchmaking mechanism will have been driven up to n additional steps when the first board has finalized its turn.

Many applications are conceivable for the mobile programming according to the present invention, such as the realization of a calendar mechanism, including annual, perpetual or secular, or for the realization of a mechanism of account-to -revours whose duration is programmable by a user. Indeed, the programming mobile can advantageously be programmed either manually by a user, or automatically by a specific clock mechanism.

According to a preferred embodiment, the first and second sectors toothed can be directly integral with each other. They can thus have a common axis of rotation to further simplify the assembly of the mobile programming according to the invention.

Furthermore, it can be provided that the toothing of the second board also comprises an inactive space corresponding to at least one step, the respective inactive spaces of the first and second boards being arranged in a predefined relative angular position, and that the second sector toothed is arranged in such a way that it is capable of taking n + 1 different angular positions, with reference to the second board, respectively associated with the n + 1 angular positions of the first toothed sector and distributed on either side of the Inactive space of the teeth of the second board.

Advantageously, it can be provided that the inactive space of the toothing of the second board corresponds to at least three steps, in particular when the actuated clock mechanism is engaged with the programming mobile via a gear wheel possibly having a retrograde movement.

In general, it can be provided that the assembly comprising the first toothed sector and the second toothed sector has a portion arranged in abutment against a blocking surface secured to the first board or the second board in the abutment position. of the first toothed sector. This abutment portion can be made directly as a part of one of the toothed sectors or, alternatively or additionally, a specific component can be provided, integral with one of the toothed sectors, to fulfill the stop function cooperating with at least one of the boards.

According to a preferred embodiment, it can be provided that each of the first and second planks comprises a recess, of depth at least equal to the thickness, respectively, of the first toothed sector and the second toothed sector, and extending in particular up to the corresponding toothing, such that the toothing of each of the first and second planks has at least one tooth, on each side of the corresponding inactive space, the height of which is reduced with reference to its other teeth, and that the first and second sectors toothed can be accommodated in the thickness, respectively, of the first board and the second board.

With these additional features, the size of the mobile programming according to the present invention can be limited significantly.

According to an alternative embodiment of the present invention, it can be provided that the programming mobile comprises a pawl, integral in rotation with one of the first and second boards and arranged to cooperate with one of the first and second sectors. toothed to define the n + 1 angular positions of the first toothed sector.

In general, the mobile according to the invention may advantageously comprise an actuating surface secured to one of the first and second tooth sectors, intended to be actuated by a programming member of the watch movement to position the first and second toothed sectors in one of their n + 1 angular positions with reference to the first and second planks, as well as a release surface secured to one of the first and second planks and intended to allow the triggering of the organ programming at a predefined opportune time. The triggering surface may incidentally allow locking of the first and second boards when the actuating surface is actuated.

In this case, it can be provided that the triggering surface is formed in an additional board integral in rotation of the first and second boards.

The invention also relates to a programming clock mechanism comprising a programming mobile according to the characteristics described above, the mechanism advantageously comprising a programming member arranged to act, periodically or on demand, on at least one first and second tooth sectors for positioning the first toothed sector in one of the n + 1 angular positions with reference to the first and second planks during a programming operation.

According to an alternative embodiment, the mechanism may comprise a release member secured to the programming member and arranged to cooperate with the triggering surface and trigger the action of the programming member on the actuating surface .

Furthermore, when the triggering surface is formed in an additional board integral in rotation of the first and second boards, it can be provided that the additional board has substantially the shape of a disc in which is formed a slot opening to the periphery of the disk to define the trigger surface, and that the mechanism comprises an elastic member arranged to maintain the trigger member bearing against the periphery of the additional board so that it enters the slot when positioned in front of him, to ensure the triggering of the action of the programming member and, at the same time, the locking of the first and second boards.

The programming and triggering members may advantageously be provided on a rocker whose amplitude of rotation can be controlled by the cooperation between a probe and a programming cam during the programming operation at each complete turn of the first board.

According to a preferred embodiment, it is also possible that the rocker carries a first surface, intended to be actuated by a drive member of the watch movement to rotate the rocker in the direction of rotation opposite to that in which it rotates during the implementation of the programming operation, and a second surface, defining the actuating member, intended to act on the toothing of the first board and / or on the first toothed sector when the Toggle pivots in this direction of opposite rotation. The first and second surfaces can in particular take the form of fingers and / or beaks.

The present invention also relates to a watch movement comprising such a programming mechanism and a timepiece comprising such a watch movement.

BRIEF DESCRIPTION OF THE DRAWINGS [0025] Other features and advantages of the present invention will become more apparent upon reading the detailed description of a preferred embodiment which follows, with reference to the accompanying drawings given by way of non-limiting examples. in which: FIG. 1 is a simplified front view of a portion of a watch movement comprising a programming mechanism comprising a programming mobile according to a preferred embodiment of the present invention; figs. 2a and 2b show exploded perspective views of the programming mobile according to a preferred embodiment of the present invention, with opposite respective viewing angles; fig. 2c represents a simplified perspective view of the programming wheel of FIGS. 2a and 2b, when assembled; fig. 3 is a simplified perspective view of a component of the programming mechanism of FIG. 1, according to a preferred embodiment; fig. 4 is a simplified front view of a first detail of FIG. 1; fig. 5 shows a simplified front view of a second detail of FIG. 1, and FIGS. 6a to 6e are views similar to the view of FIG. 5, the components being in respective different configurations to illustrate the kinematics of the operation of the mechanism of FIG. 1.

Embodiment (s) of the Invention [0026] FIG. 1 represents a simplified front view of a part of a watch movement 1 comprising a programming mechanism comprising a programming mobile according to a preferred embodiment of the present invention.

More specifically, the watch movement 1 comprises here, by way of non-limiting example, a display mechanism of information relating to a calendar, preferably annual or perpetual type.

For this purpose, the watch movement 1 conventionally comprises a time base and a power source not shown. A gear train 2 transmits a driving torque from the source of mechanical energy to a roadway 4 and an hour wheel 6 to display the current time by means of hands 8 and 10.

The hour wheel 6 is arranged in engagement with a wheel 24 hours 12 performing a turn on itself in 24 hours.

The 24-hour wheel carries a finger 14 for driving the calendar mechanism intended to cooperate with a rocker 16.

The latch 16 is in turn arranged to drive in rotation a mobile display of the date 18, of the retrograde type here by way of non-limiting example, via a programming mobile 20 as celava out of the following description.

The programming mobile 20 is arranged, at the same time, to drive in rotation a display mobile months 22. For this purpose, the programming mobile 20 is arranged in engagement with a wheel 24 months of such so that it performs a complete turn on itself in one month, regardless of the duration of the month. The wheel of the months 24 carries a spiral cam 26 with which cooperates a probe 28 of a flip-flop of months 30. Once a month, the probe 28 falls from the point of the cam 26 of greater radius on the point of smaller radius, rotating the latch 30 months in the anticlockwise rotation direction. In this movement, a spout (not visible) of the latch 30 months acts on the mobile display month 22 to advance one step in the direction of clockwise rotation. The mobile display month 22 may advantageously carry a display member of the month, as shown in FIG. 1 as an example with a display hand of the month 34.

The mobile display months 22 also carries a cam of the months 36 having the general shape of a disc on the periphery of which are formed notches associated with certain months of the year and whose depth is function the number of days in the corresponding month. Specifically, the regions of the cam of the months 36 located at its periphery are associated here in February of leap years, that is to say, counting 29 days, while notches having a first intermediate level of depth are associated with the 30-day months and maximum depth notches are associated with the 31-day months.

An additional mobile arranged to be active in February non-leap years, that is to say, counting only 28 days, can be provided in the case of a perpetual calendar, but was not represented in FIG. 1 for the sake of clarity and to the extent that its implementation does not present any particular difficulty for the skilled person.

A programming latch 38 is intended to be pivotally mounted on a frame member of the watch movement, near the wheel of the month 24.

The programming latch 38 comprises a first probe 40 arranged to cooperate with the periphery of the cam of the months 36 when the latch 38 pivots in the clockwise direction of rotation. The latch 38 comprises a second probe 42 intended to cooperate with the additional mobile not shown at the end of the month of 28 days, as will be explained below. Furthermore, the flip-flop 38 is arranged to cooperate with the flip-flop 16 and implement a programming operation of the programming mobile 20, in a manner to be described below, so that the date display mobile 18 can to be actuated a variable number of times each complete revolution of the mobile programming 20, depending on the number of days of the corresponding month.

Other components such as jumpers 44, 46 or a safety lever 48 are illustrated in FIG. 1 but will not be described in more detail to the extent that they play only a secondary role in the practice of the present invention.

The structure of the mobile programming 20 will now be described in more detail in connection with the illustrations of Figs. 2a, 2b and 2c.

The mobile is illustrated in exploded perspective with two opposite respective viewing angles in FIGS. 2a and 2b and is illustrated assembled in FIG. 2c.

The programming mobile 20 comprises a first toothed plate 50 whose toothing has an inactive space 52 corresponding to a pitch of the toothing. It is also apparent from FIG. 2a that four teeth 54, on either side of the inactive space 52, have a reduced height relative to the height of the other teeth of the first board.

The programming mobile 20 also comprises a second toothed plate 56 whose teeth has an inactive space 58, corresponding to three steps of the toothing. It is more particularly apparent from FIG. 2b that four teeth 60, one side of the inactive space 58, and two teeth 62, on the other side of the inactive space 58, have a reduced height relative to the height of the other teeth of the second board.

An additional board 64 is also provided, the latter having a generally disc shape in which is formed a trigger slot 66, slightly curved and opening to the periphery of the disc.

Finally, first and second toothed sectors 68 and 70 are interposed between the first and second planks 50 and 56. Each toothed sector 68, 70 comprises a tooth of five teeth here and is housed in a recess 72, 74 of one of the boards 50, 56 so that it does not exceed the corresponding board in the direction of the thickness.

The two toothed sectors 68, 70 are held integral in rotation by means of a pin 76 secured to one of the sectors, being driven, or possibly glued or welded, into a hole adapted to this sector, and arranged through a hole adapted from the other sector, preferably being adjusted thereto.

All these elements are held coaxial by a central shaft 78 for assembly to the frame of the watch movement while leaving them free to rotate.

In addition, two screws 80 pass through the first and second boards 50, 56, and the additional board 64, to ensure that these three members are integral in rotation.

Each toothed sector 68, 70 carries an additional pin 82, 84 extending through a suitable slot 86, 88 of the second plate 56.

It is more particularly apparent from FIG. 2a that the pin 76 further extends through a curved slot 90 of the second board 56 and a hole in a toothed ring 92 carried by the second board 56 and pivoted on the central shaft 78, in such a way that the toothed ring 92 is made integral in rotation with the two toothed sectors 68 and 70.

The second board 56 also carries a pawl 94 maintained in abutment against the toothing of the toothed ring 92 by a spring 96, to define discrete angular positions of the toothed sectors 68, 70 with reference to the first and second boards 50, 56. The pawl 94 and the spring 96 are secured to the second board 56 by screws 98 and 100.

The operation of the programming mobile 20 can now be presented in relation to FIG. 2c.

It appears that the first toothed sector 68 is in a first abutment position in the configuration illustrated in FIG. 2c which corresponds to that which is also illustrated in FIG. 2a. In this abutment position, the side of an end tooth of the first toothed sector 68 is positioned in abutment against an abutment surface 102 of the first plank 50. In this position, the first toothed sector 68 can not rotate in the anti-clockwise rotation direction than by driving the first board 50 with him.

Still in this position, it is found that the other end tooth of the first toothed sector 68 is positioned opposite the inactive space 52, while the other teeth (including the first) are retracted by being substantially aligned with teeth 54 of reduced height of the first board 50.

From this abutment position, the first toothed sector 68 can be rotated in the clockwise direction in the view of FIG. 2c to take up to four other angular positions with reference to the first board 50, these positions being marked by the cooperation of the pawl 94 with the toothing of the toothed ring 92. It will be noted that the pawl 94 must preferably be separated from the ring 92 to allow the ring to rotate in the clockwise direction in the view of FIG. 2c. This operation may for example be performed by the exercise of pressure on the tail 104 secured to the pawl 94 to lift the latter.

Advantageously, it is possible to provide an additional abutment surface (not visible) in the recess 72 to define a maximum amplitude of pivoting of the first toothed sector 68.

The first toothed sector 68 can thus take five different angular positions with reference to the first plate 50, in the context of a programming operation of the programming mobile 20.

Note that in the last position, when the first toothed sector 68 abuts against the additional abutment surface, the end tooth which was initially located against the abutment surface 102 is this time opposite the inactive space 52 of the toothing of the first board 50.

From this position, the first toothed sector 68 can be rotated four times, in the anti-clockwise direction in the view of FIG. 2c, before being again abutted on the other side, as illustrated in FIG. 2c. These rotations in the anti-clockwise direction are freely made with reference to the first board 50, that is to say without the latter being driven with the first gear sector 68. On the other hand, once the first gear sector 68 has resumed its stop position of FIG. 2c, an action on its tooth located opposite the inactive space 52 to rotate it in the counterclockwise direction necessarily causes a simultaneous rotation of the first board 50, by action on the abutment surface 102.

It will be noted that the second toothed sector 70, integral in rotation with the first toothed sector 68, has similar simultaneous movements. Indeed, the second toothed sector 70 is, in the position illustrated in FIG. 2c, in abutment against a first abutment surface 106 (visible in FIG 2b), optional, formed in the recess 74 of the second plate 56. If the first toothed sector 68 is driven to move to its stop opposite, the second toothed sector 70 does the same, to be in abutment against a second abutment surface 108 (visible in Figure 2b), optional, formed in the recess 74 of the second plate 56.

In the initial position of FIG. 2c, the second toothed sector 70 presents a single tooth opposite the inactive space 58 of the second plate 56, its four other teeth being retracted under the four teeth 60 of reduced height. When the first toothed sector 68 pivots to its second stop position, the second toothed sector 70 presents three of its teeth opposite the inactive space 58, its two other teeth then being retracted under the two teeth 62 of reduced height. .

When the first sector gear 68 is in its first stop position as illustrated in FIG. 2c, its tooth located opposite the inactive space 52 of the first board 50 fulfills the same role as would play the missing tooth of the first board, to ensure a rotation of a pitch of the entire programming mobile 20. The second toothed sector 70, meanwhile, reserves an inactive sector corresponding to two steps to allow a return to zero of the display mobile retrograde date 18.

If, for example, the first sector gear 68 is pivoted by one step in the direction of clockwise rotation, with reference to the stop position illustrated in FIG. 2c, its second tooth is then located opposite the inactive space 52 and the rocker 16 can act on the latter to rotate the first toothed sector 68, in the anti-clockwise direction of rotation, without causing the first board 50. The second toothed sector 70 then drives the display mobile of the date 18 by one additional step. After this movement, the first sector gear 68 has resumed its stop position of FIG. 2c and, on the next turn of the 24-hour wheel, when the rocker 16 acts on the first tooth of the first toothed sector 68, to drive the latter tooth in counter-clockwise rotation, the first plate 50 is also driven by a step to start a ride again. At the same time, the display mobile of the date 18 resets to zero since no tooth no longer ensures its locking.

Thus, the programming mobile 20 according to the present preferred construction is arranged in such a way that it allows, at the base, to drive the display mobile 18 of 26 steps each turn (from 1 to 27 of current month). Then, it can be programmed to train it for 1 additional step for the purposes of 28 days, 2 steps for the month ends of 29 days, 3 steps for the ends of 30 days and 4 days. not during 31-day month ends.

Of course, it is conceivable to provide that the programming mobile cooperates with another mechanism that would not necessarily retrograde and, in this case, it could be expected that the programming mobile is programmable to give rise to no steps additional during certain tours, without departing from the scope of the present invention. In addition, the inactive space 58 of the second board 56 could thus correspond to only one step instead of three.

FIG. 3 represents a simplified perspective view of the flip-flop 16 and in particular makes it possible to better understand how it cooperates with the programming mobile 20.

By way of non-limiting illustrative example, the latch 16 here has substantially three different levels.

From top to bottom on the view of FIG. 3, the rocker 16 has on its first level a first input member having the shape of a finger 110 to be actuated by the drive finger 14 of the 24-hour wheel to rotate the entire rocker 16. The latter is intended to fulfill the role of programming device in relation to the programming mobile 20. Also, it comprises an actuating finger 112 intended to cooperate with the programming mobile 20, to program the number of steps to be implemented at each complete revolution to take into account the number of days of the corresponding month.

In a second level, the flip-flop 16 comprises an actuating nose 114 arranged to retransmit the programming mobile operations that the latch 16 undergoes the finger 14 of the wheel 24 hours, once every 24 hours. The actuating spout 114 is pivotally mounted on an arm 116 of the rocker 16 while being held in its default position by a straight spring 118 in a conventional manner.

Substantially in the same second level, the flip-flop 16 comprises a trigger member, having the shape of a slightly curved arm 120 and intended to be inserted periodically into the trigger slot 66 of the programming mobile 20, during the programming operations.

Finally, the latch comprises, in a third level, a second input member having the form of a toothed rake 122, by which information relating to the number of additional steps to be programmed each month is transmitted to the latch 16 , in charge of transmitting it to the programming mobile 20.

All these elements are rigidly assembled to each other (with the exception of the actuating spout that can rotate) and the corresponding assembly is intended to be pivotally mounted on the frame of the watch movement via a tree 124.

FIG. 4 represents a simplified front view illustrating the cooperation of the flip-flop 16 with the programming flip-flop 38 and making it possible to understand how the flip-flop 16 acts on the programming mobile to program it with a number of additional steps corresponding to the number of days from of 28 each month.

The programming latch 38 comprises a rake 130 arranged in permanent engagement with the rake 122 of the latch 16.

Once a month, the 25 in the preferred embodiment illustrated here as a non-limiting indicative, the trigger slot 66 of the additional board 64 is positioned opposite the trigger arm 120 of the rocker 16, that- ci being held in abutment against the periphery of the additional board 64 the rest of the time by a not shown elastic member. This elastic member can indifferently be arranged to act directly on the flip-flop 16 or on the programming flip-flop 38.

The arm 120 then enters the trigger slot 66 to actuate the programming operation of the programming mobile 20. Note that, at the same time, the arm 120 performs a locking function by preventing any rotation of the additional board 64, and the first and second boards 50 and 56 connected thereto.

In this movement, the first and second feelers 40 and 42 of the programming latch 38 descend in the direction, respectively, of the cam of the months 36 and the additional mobile non-leap years (not shown).

When the month has 29 days, a region of the cam months of maximum radius is positioned next to the probe 40 which is placed in support against it. When the month has 30 days, a notch of the cam months of intermediate radius is positioned next to the probe 40 which is placed in support against it. When the month has 31 days, a notch of the cam months of minimum radius is positioned next to the probe 40 which is placed in support against it. When the month has 28 days, the additional mobile non-leap years fulfills the role of a stop for the probe 42 which stops the stroke of the programming lever 38 before the probe 40 could come into contact with the cam months 36.

Thus, the longer the month counts a significant number of days, the greater the amplitude of rotation of the programming flip-flop 38 is large.

Note that, advantageously, if the programming operation is performed just after the step of the programming mobile 20 driving the date display mobile to display the 25, the latch 16 is extracted from the slot of trigger 66 a few moments before the next step of 26. Indeed, when the trigger member 120 is located in the trigger slot 66, the finger 110 is on the passage of the drive finger 14 less than 24 hours after the pitch of the programming mobile 20 which led the rocker 16 to lock the latter. The trigger member 120 is thus extracted, by action of the drive finger 14 on the finger 110, this action continuing after the extraction of the trigger member 120 to proceed to the transition from 25 to 26 of the current month .

FIG. 5 illustrates how the flip-flop 16 retransmits to the programming mobile 20 the rotation it undergoes the programming flip-flop 38 during programming operations.

When the latch 16 pivots in such a way that its trigger member 120 enters the trigger slot 66 of the programming wheel 20, its actuating finger 112 exerts a pressure on the tail 104 of the pawl 94 to lift the last, then continues its course to abut the pin 82 and move it in reference to the boards 50, 56 and 64. As stated above, the more days in the current month, the greater the amplitude of rotation of the pin 82 is large . The first and second tooth sectors 68, 70 being integral with the pin 82, they are simultaneously rotated with reference to the boards 50, 56 and 64. The pin 82 thus acts as an actuating surface to allow the programming of the position of toothed sectors 68 and 70.

Figs. 6a-6e illustrate the chronological behavior of the mechanism just described during the last days of a 30-day month.

The programming mobile 20 was programmed on the 25th, as described above. The illustrated month comprising 30 days, the first toothed sector 68 was shifted three steps to a maximum of four compared to the boards 50 and 56, to move the display mobile of the date 18 from 27 to 28, from 28 to 29 and 29 to 30. The second toothed sector 70 is therefore shifted by the same number of steps. This number of steps is visible by reading the position of the ring 92 with reference to the pawl 94. Indeed, in the abutment position, the pawl 94 is engaged in the end notch of the top of the ring 92, in the view of fig. 6a while it is here three notches further.

It will be noted that the teeth of the second toothed sector 70 have been blackened in FIGS. 6a to 6e to facilitate understanding of the mechanism.

In the configuration of FIG. 6a, the first board 50 has its inactive space 52 facing the actuating nose 114 of the flip-flop 16, while the second board 56 has its inactive space 58 facing the date display mobile 18. It can be seen that the first sector toothed 68 has a tooth directly in contact with the actuating nose 114 and three teeth located upstream of the actuating nose, so intended to be actuated successively at a rate of one per day.

Like the first toothed sector 68, the second toothed sector 70 has been shifted by three steps out of four possible. H therefore has three of its teeth facing the inactive space 58, one of the end teeth being further located beyond the inactive space 58, retracted under one of the teeth 62 of reduced height of the second plate 56.

The first and second boards 50, 56 are held permanently in their angular position under the effect of the action of the jumper 44.

When, starting from the configuration illustrated in FIG. 6a, the drive finger 14 acts on the finger 110 of the rocker 16, typically around midnight, the rocker 16 pivots in the clockwise direction in the view of FIG. 6a. Its actuating nose 114 then acts on the tooth of the first toothed sector 68 against which it is supported, to rotate the first toothed sector 68 by one step in the anti-clockwise direction of rotation.

The inactive space 52 being located opposite the actuating nose 114, the first board 50 remains stationary during this operation. The ring 92 is driven one step in the anti-clockwise direction simultaneously with the first toothed sector 68, causing the pawl 94 to move one step to the next. Of course, the force exerted by the spring 96 on the pawl 94 is advantageously calibrated, with reference to that of the jumper 44, so that the first plate 50 is not driven via the pawl 94 at this time.

At the same time, the second toothed sector 70 is also rotated in the anti-clockwise direction of rotation and rotates the date display mobile 18 with a pitch, as shown in FIG. 6b, to indicate the 28th day of the current month. The second board 56, meanwhile, also remains immobile during this operation.

The same operation is repeated to go from the display of 28, in FIG. 6b, in the display of 29, in FIG. 6c, then to switch from the display 29 to 30, in fig. 6d.

The second toothed sector 70 has three teeth facing the inactive space 58 in the configuration of FIG. 6b, then two in that of fig. 6c and only one in the configuration of FIG. 6d.

The two toothed sectors 68 and 70 are found in their initial position in the configuration of FIG. 6d, that is to say in the position they occupy prior to programming. This is also apparent from the position of the pin 82 in the slot 86 that it travels, insofar as it reaches, at this stage, the end of the slot 86 that it occupies when the first toothed sector 68 is in its abutment position, as illustrated in FIG. 2c.

On the next turn of the 24-hour wheel, when the actuating nose 114 acts on the first toothed sector 68 to rotate a step in the anti-clockwise direction in the view of FIG. 6d, the first toothed sector 68 drives the first plank 50 with it, as well as the second plank 56 and the second toothed sector 70.

In this movement, the last tooth of the second toothed sector 70 releases the date display mobile 18 opposite which is still a gap corresponding to two steps. The date display mobile 18 can then perform its retrograde movement under the effect of the action of a spiral spring 132 here, by way of non-limiting illustration, to display the 1st day of the following month, as shown in FIG. . 6th.

The first board 50 having this time turned a step, it presents again a tooth within range of the actuating nose 114, ready to receive a pulse on the next turn of the wheel 24 hours.

Similarly, the second board 56 having advanced a step, it also has a tooth 62 within range of the first tooth 134 of the teeth of the date display mobile 18, the tooth 134 having dimensions greater than those of the other teeth of the mobile 18 to define a stop for the mobile, when returning to the 1st of the following month, while allowing the other teeth to pass opposite the first tooth 62 of the second board 56.

The movements of this mechanism thus resume normally until the 25th day of the month which has just begun, at which time the next programming operation will take place.

It will be noted that the mobile programming 20 performs a complete turn on itself in a period of one month, regardless of the duration of each month, and it is the same for the wheel of the months 24 which controls the movements of the display mobile of the months 22 carrying the cam of the months 36 which defines the programming of the mobile programming 20 each month.

It will also be noted that the cooperation between the triggering member 120 and the periphery of the additional board 64 defines a stop in the counterclockwise direction, when the flip-flop 16 is returned to its position after each change of date (unless the 25th).

With the construction which has just been described by way of non-limiting example of a preferred embodiment, there is obtained a programming mobile relatively simple to build and adjust and offering great flexibility of use, allowing to put it implemented in relation to a large number of applications, for example in a countdown mechanism.

Indeed, the programming operation of this programming mobile can be performed automatically, controlled by the watch movement, as has been described in the context of its application to a calendar mechanism, or so manual.

For example, it is possible to manually define the orientation of a cam that would replace the cam of months 36 of the embodiment that has been described to manually control the programming of the mobile programming according to the present invention. Thus, in the context of an application to a countdown mechanism, a basic duration could be provided for any count to which the user could add an additional duration when he wishes, by operating the programming cam commander the amplitude of rotation of the flip-flop 16 during programming operations.

The foregoing description attempts to describe a particular embodiment by way of non-limiting illustration and the invention is not limited to the implementation of certain particular features which have just been described, as for example the application of the mobile programming to the implementation of a perpetual calendar. Indeed, as mentioned above, this counting device is also adapted to the implementation of an annual calendar without departing from the scope of the present invention, or even a simple calendar taking into account only the months of 30 and 31 days .

The skilled person will not encounter any particular difficulty to adapt the content of the present disclosure to his own needs and implement a programming mobile comprising main boards of entry and

Claims (18)

output and input and output tooth sectors associated with the main boards and arranged to rotate a predefined number of steps each turn of the main boards without driving the latter, without departing from the scope of the present invention. For example, the forms illustrated and described for the latches 16 and 38 and their mode of cooperation are not limiting and the skilled person will not encounter any particular difficulty to adapt the described construction according to its own needs, without departing from the scope of the present invention. Moreover, a certain number of abutment surfaces that have been described and illustrated are optional and those skilled in the art will be able to provide as many as necessary according to their needs. In addition, it may be noted that the first and second sectors toothed are not necessarily integral insofar as it is sufficient that the movements of the second tooth sector, output, are dictated by those of the first gear sector, input. claims 1. Programming mobile (20), for watch movement (1), comprising a first board (50) having a toothing intended to cooperate with an actuating member (114), to allow the rotational drive of said first board (50) in a predefined direction of rotation, a second board (56), coaxial with said first board (50) being integral in rotation with the latter and having a toothing for actuating a mechanism (18) of the watch movement ( 1), a first sector toothed (68) pivotable with reference to said first board (50) and having n + 1 teeth, with n equal to or greater than 1, through which it is intended to cooperate with the actuating member (114), said first sector gear (68) being capable of taking n + 1 different angular positions, with reference to said first board (50), characterized in that the toothing of said first board (5) 0) comprises an inactive space (52) corresponding to at least one step, said first toothed sector (68) being able to cooperate with the actuating member (114) when said first board (50) has said inactive space (52). ) opposite the actuating member (114), in that said n + 1 angular positions of said first tooth sector (68) are distributed on either side of said inactive space (52) and comprise a first position of stopper, wherein a rotation of said first toothed sector (68) in said predefined direction of rotation causes a rotation of said first plank (50), and n programmed positions in which said first toothed sector (68) is capable of being positioned to be rotated between 0 and n additional steps without driving said first board (50), and in that the programming wheel (20) further comprises a second gear sector (70) having at least n + 1 of nts, arranged to pivot with reference to said second board (56) according to the rotational movements of said first sector gear (68) and intended to cooperate with the mechanism (18) of the watch movement (1) to actuate between 0 and n additional times each complete revolution of said first board (50). 2. Mobile (20) according to claim 1, characterized in that said first and second sectors toothed (68, 70) are integral with each other. 3. Mobile (20) according to claim 1 or 2, characterized in that the toothing of said second board (56) also comprises an inactive space (58) corresponding to at least one step, the inactive spaces (52,58) respectively said first and second boards (50,56) being arranged in a predefined relative angular position, and in that said second sector gear (70) is arranged such that it is capable of taking n + 1 different angular positions, reference to said second board (56), respectively associated with the n + 1 angular positions of said first tooth sector (68) and distributed on either side of the inactive space (58) of the toothing of said second board (56) . 4. Mobile (20) according to claim 3, characterized in that the inactive space (58) of the toothing of said second board (56) corresponds to at least three steps. 5. Mobile (20) according to one of the preceding claims, characterized in that the assembly comprising said first sector gear (68) and said second sector gear (70) has a portion arranged in abutment against a locking surface (102). ) secured to said first board (50) or said second board (56) in said abutment position of said first gear sector (68). 6. Mobile (20) according to one of claims 3 to 5, characterized in that each of said first and second boards (50, 56) comprises a recess (72, 74) of depth at least equal to the thickness, respectively, of said first toothed sector (68) and said second toothed sector (70), and extending in particular to the corresponding toothing, such that the toothing of each of said first and second planks (50, 56) is at least one tooth, on each side of the corresponding inactive space (52, 58), whose height is reduced with reference to its other teeth, and that said first and second tooth sectors (68, 70) can be accommodated in the thickness, respectively, of said first board (50) and said second board (56). 7. Mobile (20) according to one of the preceding claims, characterized in that it comprises a pawl (94), integral in rotation with one of said first and second boards (50, 56) and arranged to cooperate with the one of said first and second toothed sectors (68, 70) for defining said n + 1 angular positions of said first toothed sector (68). 8. Mobile (20) according to one of the preceding claims, characterized in that it comprises an actuating surface (82) integral with one of said first and second sectors (68, 70) to be actuated by a programming member (112) of the watch movement (1) for positioning said first and second tooth sectors (68, 70) in one of their n + 1 angular positions with reference to said first and second boards (50, 56) , and a trigger surface (66) integral with one of said first and second boards (50, 56) and intended to allow the triggering of the programming member. 9. Mobile (20) according to claim 8, characterized in that said triggering surface (66) is formed in an additional board (64) integral in rotation with said first and second boards (50, 56). 10. Clockmaking programming mechanism comprising a programming mobile (20) according to one of claims 1 to 9, characterized in that it comprises a programming member (112) arranged to act, periodically or on demand, on at least one of said first and second toothed sectors (68, 70) for positioning said first toothed sector (68) in one of said n + 1 angular positions with reference to said first and second planks (50, 56) in a programming operation. 11. Mechanism according to claim 10, said programming wheel (20) having an actuating surface (82) integral with one of said first and second tooth sectors (68, 70) and intended to be actuated by said actuating member. programming (112), and a trigger surface (66) secured to one of said first and second boards (50, 56), characterized in that it further comprises a trigger member (120) integral with said member programming device (112) and arranged to cooperate with said trigger surface (66) and trigger the action of said programming member (112) on said actuating surface (82). 12. Mechanism according to claim 11, said trigger surface (66) being formed in an additional board (64) integral in rotation with said first and second boards (50, 56), characterized in that said additional board (64) has substantially the shape of a disk in which is formed a slot opening at the periphery of the disk to define said trigger surface (66), and in that the mechanism comprises an elastic member arranged to maintain said trigger member (120) in support against the periphery of said additional board (64) so that it enters said trigger slot (66) when positioned opposite it, to trigger the action of said programming member. 13. Mechanism according to claim 12, characterized in that said programming elements (112) and tripping (120) are provided on a rocker (16), and in that it further comprises a sensor (40) arranged to cooperating with a programming cam (36) arranged to define the amplitude of rotation of said flip-flop (16) during said programming operation at each complete revolution of said first board (50). 14. Mechanism according to claim 13, said flip-flop (16) pivoting in a first direction of rotation during said programming operation, characterized in that said flip-flop (16) carries a first surface (110) intended to be actuated by a driving member (14) of the watch movement for pivoting said rocker (16) in the direction of rotation opposite to that of said programming operation, and a second surface defining said actuating member (114) for acting on the toothing of said first board (50) and / or on said first sector gear (68) when said flip-flop (16) pivots in said opposite direction of rotation. 15. Watch movement comprising a drive member (14) arranged to actuate a display unit (18) via a programming mechanism according to one of claims 10 to 14. 16. Movement according to claim 15, wherein the toothing of said second board (56) comprises an inactive space (58) corresponding to at least three steps, characterized in that said display unit (18) is of the retrograde type. 17. Movement according to claim 15 or 16, characterized in that said mobile display is a date display mobile or counting a time duration. 18. Movement according to claim 15 or 16, characterized in that said mechanism is arranged such that said display mobile (18) can display a perpetual calendar.