EP2701015B1 - Device for correcting functions displayed by a timepiece - Google Patents

Description

The present invention relates to a correction device for modifying the data of a plurality N of time functions displayed by a timepiece.

In order to carry out these corrections, a crown rod which can be placed in the first and second drawn positions for selecting the date and the time setting is used in most timepieces, the correction being effected by the rotation of the crown. The advantage of this system lies in the bidirectional correction of the data to be modified but limits the choice to two functions that can be corrected. If other functions, for example the day of the week and the month must be corrected, we could add on the middle of the timepiece a second stem crown with the technical complications and the lack of aesthetics that this solution lead.

The corrections to be made may also be implemented by push buttons, each of which corrects a displayed time data. Often, these pushers are correctors embedded in the middle part, which does not affect the aesthetics of the whole. On the other hand, the main disadvantage of this solution lies in its unidirectional operation to which will be added the possible breakage of the mechanism if two pushers are activated at the same time.

The watchmaker therefore feels the need to design a system that combines pusher and stem-crown, the pusher allowing the choice of the function among several available and the stem-crown allowing correction in both directions of the chosen function.

A draft of the system mentioned above is proposed in the patent application CH 700 531 A2 . In this application are provided a function change button and a correction rod of the selected function, this rod being rotated by a serrated ring manually movable around the middle part of the timepiece. The pusher allows each punctual support (that is to say a support followed by a loosening) to change the function to be corrected by the ring. For example, starting from a winding function, a first one-time press selects the time-setting function, a second one-time press selects the date-setting function, a third one-time press will again select the winding function. The presented system provides a display device of the function filled by the ring during rotation. This system is reminiscent of the control of a classic watch since it uses, mounted on the stem, a sliding pinion. It will be understood therefore that the number of functions displayed by the watch is limited to two units, namely setting the time and date.

The documents EP 2 367 074 , EP 2,444,861 and EP 2,214,066 all describe correction devices for modifying a plurality N of time functions displayed by a timepiece in which the pusher acting on the selection control ring of the function to be corrected and the rod are combined and coaxial and in which the Control rod is still engaged with the control crown of function selection.

If it is therefore to set up a correction system capable of correcting in both directions more than two time data displayed by the timepiece, but keeping the idea of a push to select the displayed data and a rod for correcting said datum, a path different from that of the sliding pinion will have to be found, this path being that proposed by the present invention which is remarkable in that it comprises a function change pushbutton whose actuation moves a control wheel to bring it into engagement with a correcting gear of the selected function, and a crown rod with a rotation in one direction or the other rotates said control wheel which in turn drives one of said correction gears for correcting in more or less the data of said selected function, the pusher and the rod extending along two separate or distinct rays of the movement.

• la figure 1 est une vue en plan de l'ensemble de la présente invention dans laquelle la pièce d'horlogerie est munie d'un poussoir 1 de changement de fonction, cette fonction étant munie d'un premier pignon correcteur 4 engrenant avec une roue de commande 2, et d'une tige de correction 7 de la fonction choisie, cette tige se trouvant en première position axiale tirée T2,
• la figure 2 est une vue en coupe selon la ligne A-A de la figure 1,
• la figure 3 est une vue en coupe selon la ligne A-A de la figure 1, la tige se trouvant en position axiale poussée T1,
• la figure 4 est une vue en coupe selon la ligne A-A de la figure 1, la tige se trouvant en seconde position axiale tirée T3,
• la figure 5 montre une vue en plan d'un premier stade de changement de fonction quand le poussoir 1 commence à être activé, la roue de commande 1 engrenant encore avec le pignon correcteur 4,
• la figure 6 montre une vue en plan d'un deuxième stade de changement de fonction, le poussoir 1 continuant à être activé, la roue de commande 2 se trouvant à mi-chemin entre deux pignons correcteurs 4 et 3 correspondant à deux fonctions différentes,
• la figure 7 est une vue en coupe selon la ligne B-B de la figure 6,
• la figure 8 montre une vue en plan d'un troisième stade de changement de fonction, le poussoir finissant d'être activé, la roue de commande 2 se trouvant proche de la fin d'engrènement avec le nouveau pignon correcteur 3,
• la figure 9 est une vue en coupe du dispositif selon l'invention, la roue de commande 2 se trouvant entre les pignons correcteurs 4 et 3, la tige étant mise en rotation par inadvertance lors d'un changement de fonction,
• la figure 10 montre la chaîne cinématique existante quand le poussoir 1 est activé, et
• la figure 11 est une vue en plan de la pièce d'horlogerie où apparaissent à travers des guichets une donnée fonctionnelle et l'affichage écrit de cette donnée.

The features and advantages of the present invention will emerge from the description which follows, made with reference to the drawings attached and giving by way of an explanatory example, but in no way limiting a preferred embodiment of the invention, drawings in which:

• the figure 1 is a plan view of the assembly of the present invention in which the timepiece is provided with a pushbutton 1 for changing the function, this function being provided with a first correction gear 4 meshing with a control wheel 2 , and a correction rod 7 of the chosen function, this rod being in first axial position drawn T2,
• the figure 2 is a sectional view along line AA of the figure 1 ,
• the figure 3 is a sectional view along line AA of the figure 1 , the rod being in the axial thrust position T1,
• the figure 4 is a sectional view along line AA of the figure 1 , the rod being in the second axial position drawn T3,
• the figure 5 shows a plan view of a first stage of change of function when the pusher 1 starts to be activated, the control wheel 1 still meshing with the correction pinion 4,
• the figure 6 shows a plan view of a second stage of change of function, the pusher 1 continuing to be activated, the control wheel 2 being halfway between two corrective gears 4 and 3 corresponding to two different functions,
• the figure 7 is a sectional view along line BB of the figure 6 ,
• the figure 8 shows a plan view of a third stage of change of function, the pusher ending to be activated, the control wheel 2 being close to the end of meshing with the new correction gear 3,
• the figure 9 is a sectional view of the device according to the invention, the control wheel 2 being between the corrective gears 4 and 3, the stem being inadvertently rotated during a change of function,
• the figure 10 shows the existing driveline when push-button 1 is activated, and
• the figure 11 is a plan view of the timepiece in which wickets display functional data and the written display of this data.

The general principle of the present invention is shown in figure 1 . The timepiece is equipped with a correction device for modifying the data of a plurality N of time functions displayed by said timepiece. The invention is remarkable in that the device comprises on the one hand a pushbutton 1 of change of function whose actuation, that is to say a support followed by a release of said pusher 1, moves a control wheel 2. The timepiece having a plurality N of time functions, each of these is equipped with a correction gear of the selected function referenced respectively 3, 4, 5 or 6 on the figure 1 . These correction gears are linked to the function with a view to its correction by a mechanism not described here but adapted to correct the function chosen, for example the date, the day of the week, the month, the time setting or the moon phase. The device of the invention further comprises a rod 7 capped with a ring 8 whose rotation in one direction or the other rotates the control wheel 2 which in turn drives one of the correct gears 3 , 4, 5 or 6 to correct more or less the data of the selected function. In a very simplified version of the invention, one can imagine a rod not provided with axial displacement, the reassembly being provided by an oscillating mass and setting time by the device of the present invention.

In a more elaborate version of the present invention and as shown in figure 1 , the rod 7 can assume three axial positions, a the so-called "walking" position in which manual winding of the timepiece is possible, a first pulled position T2 allowing the correction of the data of the time function chosen according to the present invention, and a second drawn position T3 allowing the setting time of the timepiece by known means.

Finally, in a preferred version of the invention, the figure 1 shows that the actuation of the pusher 1 travels to the axis 19 that has the control wheel 2 a circular path. Here each of the correcting pinions 3, 4, 5, 6 is arranged around said trajectory, the pitch radius of each of said correction gears being sized to mesh with the pitch radius of the control wheel 2. Note that the correction pinion 6 is not represented in figure 1 not to complicate said figure. This pinion 6 however appears in figure 10 which allows this representation.

In addition, in the preferred version described in the above paragraph, the device of the invention is designed such that, when the pusher 1 is actuated, the control wheel 2 simultaneously moves its axis 19 in accordance with a circular path, rotates on itself so as not to cause the function correction pinion (3, 4, 5, 6) with which it has engaged.

• un système de leviers composé de deux éléments 11 et 35 et rappelé par un premier ressort 15. Ce système est équipé d'un talon 12 sur lequel s'appuie le poussoir de changement de fonction 1 et d'un bec 13. Ce bec 13 est arrangé pour actionner les dents 30 d'une étoile 14. L'étoile 14 présente un nombre N de dents 30 égal au nombre de fonctions temporelles à corriger. Entre deux dents 30 de l'étoile 14 prend place un sautoir 22 quand le système de levier 11 et 35 n'est pas activé par le poussoir 1. Le sautoir 22 est rappelé par un second ressort 23,
• une roue d'étoile 16 fixée coaxialement à l'étoile 14 pour former un premier ensemble qui tourne librement sur un premier arbre 17. Autour de ce premier arbre 17 tourne librement un deuxième ensemble formé d'une roue centrale 24 sur laquelle est fixé coaxialement un pignon central 18,
• un second arbre 19 fixé excentriquement sur la roue d'étoile 16 pour servir d'axe de rotation autour duquel tourne librement la roue de commande 2. La roue de commande 2 engrène, à la manière d'un satellite, sur le pignon central 18. Ladite roue de commande 2 est en prise avec l'un desdits pignons correcteurs de fonction 3, 4, 5, 6, ici avec le pignon correcteur 4,
• un troisième ensemble formé d'une roue de renvoi principal 20 sur laquelle est fixé coaxialement un pignon de renvoi principal 21. Le pignon de renvoi principal 21 engrène avec la roue d'étoile 16 par l'entremise d'un premier renvoi intermédiaire 40, et
• un second renvoi intermédiaire 41 engrenant en permanence avec la roue centrale 24. Ce second renvoi intermédiaire 41 est susceptible d'être entraîné soit par la roue de renvoi principal 20 comme montré en figure 7, soit par un dernier mobile 46 d'un train d'engranges 47, 43, 44, 45, 46 commandé par la tige 7, comme montré en figures 1 et 2.

We will now describe in detail what is composed of the device of the invention executed according to the preferred version mentioned above, and according to the more elaborate version where the rod 7 can be arranged on three different axial positions. For this we will mainly refer to the figure 1 which is a plan view and to figures 2 and 7 which are representations in section of the device according to the invention, the rod 7 being in first axial position drawn T2. The device comprises:

• a system of levers composed of two elements 11 and 35 and recalled by a first spring 15. This system is equipped with a heel 12 on which rests the change of function pusher 1 and a spout 13. This spout 13 is arranged to actuate the teeth 30 of a star 14. The star 14 has a number N of teeth 30 equal to the number of temporal functions to be corrected. Between two teeth 30 of the star 14 takes place a jumper 22 when the lever system 11 and 35 is not activated by the pusher 1. The jumper 22 is recalled by a second spring 23,
• a star wheel 16 fixed coaxially with the star 14 to form a first assembly which freely rotates on a first shaft 17. Around this first shaft 17 freely rotates a second assembly formed of a central wheel 24 on which is fixed coaxially a central gear 18,
• a second shaft 19 eccentrically fixed to the star wheel 16 to serve as an axis of rotation around which the control wheel 2 rotates freely. The control wheel 2 meshes, in the manner of a satellite, with the central pinion 18 Said control wheel 2 is engaged with one of said function correcting gears 3, 4, 5, 6, here with the correction pinion 4,
• a third assembly formed by a main return wheel 20 on which is fixed coaxially a main gear 21. The main gear 21 meshes with the star wheel 16 via a first intermediate gear 40, and
• a second intermediate gear 41 meshing permanently with the central wheel 24. This second intermediate gear 41 can be driven either by the main gear wheel 20 as shown in FIG. figure 7 or by a last mobile 46 of a gear train 47, 43, 44, 45, 46 controlled by the rod 7, as shown in FIG. figures 1 and 2 .

To make possible the meshing of the second intermediate return 41 on the main return wheel 20, or on the last mobile 46 controlled by the rod 7, this second intermediate return 41 is mounted on a disengaging arm 42 pivoting around the first shaft 17 on which the first and second sets freely rotate. The disengaging arm 42 is controlled by a control lever 50 recalled by a third spring 51, this latch 50 being controlled itself by the system of levers 11 and 35 actuated by the pusher 1.

In the particular case shown in the figures, the star 14 has not a number N of teeth 30 but a number N + 1 of teeth 30, this to provide an additional so-called rest function in which the control wheel 2 is engaged with no correction gear. Thus in the case presented the star 14 is provided with five teeth 30 arranged at 72 ° to each other, the correction gears being reduced to the number of four always arranged at 72 ° from each other.

As can be seen on the figure 2 and better on the figure 11 the first set composed of the star 14 and the star wheel 16 carries a disk 48 in which are written the various functions 49 that can be corrected, the function 53 that can be corrected appearing in a window 52 pierced in the dial 55 that carries the timepiece.

As shown in figure 2 which is a section along line AA of the figure 1 , the second intermediate return 41 is kinematically connected to the rod 7 by a gear train comprising the mobiles 47, 43, 44, 45 and 46, the rod 7 being in the first drawn position T2. More particularly, this gear train has a sliding pinion 60 sliding on the rod 7, sliding pinion 60 and rod 7 being connected by a drawbar system 61 and latch 62 known from the state of the art. When the rod 7 is rotated, it causes a first return 43 which in turn causes a second return 44 which is engaged with a return wheel 45 actuating a platinum-plate return 46, the latter meshing finally with the second return intermediate 41. In this situation and if the control wheel 2 is oriented towards the additional function said rest in which said control wheel 2 is not engaged with any correction gear, situation not shown here, the jumper 22 locks star 14 and a rotational movement of the rod 7 transmits this movement to the control wheel 2 which rotates empty.

The figure 3 presents the situation of the sponsorship defined with regard to figure 2 in the case where the rod 7 is in the pushed position T1. In this case, any connection of the sliding pinion 47 with the rest of the gear train is interrupted, the sliding pinion causing the unrepresented winding of the barrel of the timepiece. In this case the control wheel 2 can be oriented towards any function.

The figure 4 presents the situation of the mechanism defined for the figure 2 in the case where the rod 7 is in the second drawn position T3. The sliding pinion 47 is engaged with the first return 43 which in turn causes the time setting mechanism not shown. In this case the connection of the first reference 43 with the second reference 44 is interrupted. As in situation T1, the control wheel 2 can be directed towards any function.

The change of function is achieved by pressing the pushbutton 1, support followed by a complete release. We will now explain different stages of this change by referring to Figures 5 to 10 , the figures 5 , 6 , 7 , 8 and 10 being drawings showing the elements necessary for this change, excluding the elements necessary for the correction of the chosen function that is to say the rod and the gear train which is related thereto.

The figure 5 is a plan view of a first stage of function change. A beginning of pressing on the pusher 1 makes contact the spout 13 of the lever system 11, 35 with a tooth 30 of the star 14. The star 14 is still immobile. In conjunction with this, the lever system 11, 35 acts on the control latch 50 which pivots the disengaging arm 42 and the second intermediate link 41 which is connected thereto. This second return 41 then leaves the last mobile 46 of the gear train which links it to the rod 7 to mesh with the main return wheel 20. At this time the axis 19 of the control wheel 2 connected to the wheel of 'star 16 is likely to move in a circular trajectory at the same time as it turns on itself by virtue of its meshing with the central pinion 18.

The figure 6 is a plan view of a second stage of change of function where the pusher 1 continues to be activated and the figure 7 is a section along the line BB of the figure 6 . In this situation the spout 13 drives the star 14 by a flank of its tooth 30, then the star wheel 16 which is linked to it, the latter driving in a circular path the axis 19 of the control wheel 2 which is is about halfway between two corrective gears 4 and 3.

The figure 8 is a plan view of a third stage of change of function where the pusher is towards the end of its activation. In this situation the control wheel is close to the complete meshing with the new correction gear 3, the complete meshing taking place at the moment of release of the pusher 1. When the pusher 1 is released we find the situation presented to the figures 1 and 2 . The jumper 22 blocks the star between two of its teeth and the second intermediate return 41, by the action of the release arm 42, left the main return wheel 20 to mesh again with the last mobile 46 of the train of gearing that binds it to the rod 7. From this moment, the driving of the wheel of the control 2 and the new correction pinion 3 is done by the rotation of the rod 7.

It has been explained above the important role played by the second intermediate return 41 meshing on the one hand permanently in the manner of a satellite with the central wheel 24 and on the other hand with the main return wheel 20 when the Pusher 1 is activated to perform a change of function, either with the last mobile 46 of the gear train leading to the rod to make a correction of the chosen function.

The figure 9 is a sectional view of the mechanism being changed function, the control wheel 2 located between two gears of function 4 and 3. At this time the last mobile 46 of the gear train controlled by the rod 7 is meshes more with the second intermediate referral 41, the latter mobile 46 rotating empty, even if, inadvertently, the rod 7 is rotated during a function change operation performed by the pusher.

The figure 10 is a schematic view of the drive train taken into account when the pushbutton 1 is activated. From this moment the star 14 (not shown) rotates the star wheel 16 in the direction of the arrow 60. The axis 19 of the control wheel 2 fixed to the star wheel 16 progresses in the direction of the arrow 61 in a circular path as seen above. The control wheel 2 passes from the correction gear 4 to the correction gear 3 during the pushing and release of the pusher 1. Simultaneously with this movement, the control wheel 2 will turn on itself in the direction of the arrow 70 in such a way that its rotation leaves still first the corrector pinion 4 it leaves then the 3 with which it engages. This precaution is essential because without it the functions displayed would be totally out of order. It will be understood that to obtain this stationary hold, the control wheel 2 must rotate in a direction 70 opposite to that 60 of the star wheel 16 which is the same as that of the direction of rotation 61 of the axis 19 of the wheel 2. The rotation and the direction of rotation of the control wheel 2 are governed in the order and from the star wheel 16 which rotates in the direction of the arrow 60, by the following mobiles driven by said star wheel 16: the first intermediate gear 40 (direction of the arrow 62), the main gear 21 (arrow 63), the main gear 20 (arrow 64), the second intermediate gear 41 (arrow 65) , the central wheel 24 (arrow 66), the central gear 18 (arrow 67) and the control wheel 2 (arrow 70).

et $$\mathrm{R}\left(24\right)+\mathrm{R}\left(20\right)=\mathrm{R}\left(21\right)+\mathrm{R}\left(16\right)$$

Since the direction of rotation 70 of the control wheel 2 is opposite to the direction of rotation 60 of the star wheel, it is now a matter of sizing the pitch radii of the mobiles, constituting the kinematic chain mentioned above for the angular displacement. of the wheel of control 2 is such that it leaves still the correction pinion (3, 4) it leaves or with which it is engaged. Mathematical developments have established two equations which, if satisfied, provide the desired result, either $$2+2\frac{R\left(18\right)}{R\left(2\right)}-\frac{\mathrm{<figure-callout\; id="16"\; label="R"\; filenames="imgf0001.png,imgf0002.png"\; state="\{\{state\}\}">R</figure-callout>}\left(16\right)\cdot \mathrm{<figure-callout\; id="20"\; label="R"\; filenames="imgf0001.png,imgf0003.png"\; state="\{\{state\}\}">R</figure-callout>}\left(20\right)\cdot R\left(18\right)}{\mathrm{<figure-callout\; id="21"\; label="R"\; filenames="imgf0001.png,imgf0003.png"\; state="\{\{state\}\}">R</figure-callout>}\left(21\right)\cdot \mathrm{<figure-callout\; id="24"\; label="R"\; filenames="imgf0001.png,imgf0002.png"\; state="\{\{state\}\}">R</figure-callout>}\left(24\right)\cdot \mathrm{<figure-callout\; id="2"\; label="R"\; filenames="imgf0001.png,imgf0002.png"\; state="\{\{state\}\}">R</figure-callout>}\left(2\right)}=0$$

and $$\mathrm{<figure-callout\; id="24"\; label="R"\; filenames="imgf0001.png,imgf0002.png"\; state="\{\{state\}\}">R</figure-callout>}\left(24\right)+\mathrm{<figure-callout\; id="20"\; label="R"\; filenames="imgf0001.png,imgf0003.png"\; state="\{\{state\}\}">R</figure-callout>}\left(20\right)=\mathrm{<figure-callout\; id="21"\; label="R"\; filenames="imgf0001.png,imgf0003.png"\; state="\{\{state\}\}">R</figure-callout>}\left(21\right)+\mathrm{<figure-callout\; id="16"\; label="R"\; filenames="imgf0001.png,imgf0002.png"\; state="\{\{state\}\}">R</figure-callout>}\left(16\right)$$

It can be seen that the primitive rays of the corrective gears (3 to 6) as well as the rays of the first and second intermediate returns do not appear in these equations and are therefore free of choice. In addition, the table below gives an example of practical realization: Primitive radius R (mm) Module m (mm) Number of Z teeth R (18) 1.21 0.11 22 R (24) 2.25 0,075 60 R (16) 3.6 0,075 96 R (2) 1.21 0.11 22 R (4) 0.66 0.11 12 R (21) 0.9 0,075 24 R (20) 2.25 0,075 60 R (41) 1.05 0,075 28 R (40) 0.9 0,075 24

As soon as the pusher 1 is released, the driving of the control wheel 2 is done by the rotation of the rod 7 which is able to correct more or less the data displayed by the time function chosen by the 1. This situation is the same as this shown in figure 1 except for the control wheel 2 which is aligned now with the correction pinion 3. The figure 2 also presents a sectional view of the new situation except for the correction pinion bearing the reference 3.

The rotation of the rod 7 drives the gear train 47, 43, 44, 45, 46, the last mobile, the platinum-plate return 46, finally meshes with the central wheel 24 via the second intermediate return 41. The central wheel 24 drives the central pinion 18 which is attached to it coaxially, this central pinion 18 in turn driving the control wheel 2 which ultimately causes in one direction or the other, in the direction of rotation printed on the ring 8 styling the rod 7, the new function correction gear 3.

It will be noted in conclusion that the present invention is not limited to the particular embodiment of the preferred method described in detail above.

For example, the second intermediate gear 41, and consequently the first intermediate gear 40, could be removed, if the third set consisted of a main gear 20 mounted frictionally on the main gear 21, the pinion 21 meshing directly with the star wheel 16 and the wheel 20 meshing with both the second assembly consisting of the central wheel 24 and the central gear 18 and with the gear train connected with the rod 7, this train having a radial disengagement means controlled by the pusher during its activation.

In this derivative version, the rest of the mechanism remains the same as that mentioned with respect to the preferred version, the main idea of the present invention consisting in the fact that a pusher 1 of change of function moves a control wheel 2 to bring it into engagement with a correction gear of the chosen function and that a rod 7, rotated in one direction or the other, in turn drives the correction gear selected for correct in more or less the displayed data of said selected function.

Claims (10)

1. Correction device for modifying the data of a plurality N of time-related functions displayed by a timepiece including a timepiece movement, characterized in that the device includes a pusher (1) for changing function, whose actuation moves a control wheel (2) and meshes said wheel with a corrector pinion (3, 4, 5, 6) for the selected function, and a stem (7) covered with a crown (8) whose rotation in one direction or the other pivots said control wheel (2), which in turn drives one of said corrector pinions (3, 4, 5, 6) to correct the data of said selected function by adding or subtracting and characterized in that the pusher and the stem are arranged along two separate and distinct radii of the timepiece movement.
2. Device according to claim 1, characterized in that the stem (7) can take three axial positions, a pushed-in operating position (T1) in which it is possible to manually wind the timepiece, a first pulled-out position (T2) for correcting the data of the selected time-related function, and a second pulled-out position (T3) for setting the time of the timepiece.
3. Device according to any of claims 1 and 2, characterized in that actuation of the pusher (1) causes the arbour (19) of the control wheel (2) to cover a circular trajectory, each of the corrector pinions (3, 4, 5, 6) being arranged around said trajectory, the primitive radius of each of said corrector pinions being dimensioned to mesh with the primitive radius of said control wheel.
4. Device according to claim 3, characterized in that, when the pusher (1) is actuated, the control wheel (2), simultaneously with the movement of the arbour (19) thereof on a circular trajectory, rotates on itself so as to hold immobile the corrector pinion (4) that the control wheel leaves and then the corrector pinion (3) with which the control wheel engages.
5. Device according to claim 3, characterized in that it includes:

   - a lever system (11, 35) returned by a first spring (15), said system being provided with a heel (12), on which the pusher (1) can abut, and with a beak (13) arranged to actuate the teeth (30) of a star (14), said star having a number N of teeth equal to the number of time-related functions to be corrected, a jumper spring (22) returned by a second spring (23) occupying the space between said teeth,

   - a star wheel (16) coaxially fixed to the star (14) to form a first assembly rotating freely on a first arbour (17) about which a second assembly, formed of a central wheel (24) on which there is fixed a central pinion (18), rotates freely,

   - a second arbour (19) fixed to the star wheel (16) acting as an axis of rotation about which the control wheel (2) rotates freely, meshing, like a planetary wheel, about said central pinion (18), the control wheel (3) meshing with one of said function corrector pinions (3, 4, 5, 6),

   - a third assembly formed of a main intermediate wheel (20) to which there is fixed a main intermediate pinion (21), said intermediate pinion meshing with the star wheel (16) via a first intermediate wheel (40),

   - a second intermediate wheel (41) permanently meshing with the central wheel (24) and being able to be driven either by the main intermediate wheel (20), or by a last wheel set (46) of a gear train (47, 43, 44, 45, 46) controlled by the stem (7).
6. Device according to claim 5, characterized in that the second intermediate wheel (41) is mounted on an uncoupling arm (42) pivoting about the first arbour (17) carrying the central wheel (24), said uncoupling arm (42) being controlled by a control lever (50) returned by a third spring (51), said lever (50) being controlled in turn by the lever system (11, 35) actuated by the pusher (1).
7. Device according to claim 5, characterized in that the star (14) includes N+1 teeth (30) to provide an additional rest function where the control wheel (2) is not meshed with any of the corrector pinions (3, 4, 5, 6).
8. Device according to claim 5, characterized in that the first assembly formed of the star (14) and the star wheel (16) carries a disc (48) where the various correctable functions (49) are inscribed, the correctable function (53) appearing in an aperture (52) made in the dial (55) of the timepiece.
9. Device according to claim 5, characterized in that a press on the pusher (1) on the one hand moves the control wheel (2) from one function corrector pinion (4) to another function corrector pinion (3), said pusher (1) advancing the star (14) through one step via the beak (13) of the lever system (11, 35) pressing on one of the teeth (30) of said star (14), said advancement causing the star wheel (16) and the control wheel (2) carried thereby, to advance to the new position thereof, and, on the other hand, simultaneously with the circular motion of the arbour (19) of the control wheel (2), rotates said control wheel (2) on itself so that the rotation leaves immobile the corrector pinion (4) that the control wheel leaves and the corrector pinion (3) with which the control wheel engages, the second intermediate wheel (41) being meshed with the main intermediate wheel (20), and the primitive radii forming the kinematic chain comprising the control wheel (2), the central pinion (18), the central wheel (24), the main intermediate wheel (20), the main intermediate pinion (21), and the star wheel (16) being dimensioned to ensure this rotation.
10. Device according to claim 5, characterized in that the rotation of the stem (7) in one direction or the other corrects, by adding or subtracting, the data displayed by the time-related function selected by the pusher (1), said pusher being released, said rotation causing the gear train (47, 43, 44, 45, 46) whose last wheel set (46) drives the central wheel (24) via the second intermediate wheel (41) meshing therewith, said central wheel (24) driving the central pinion (18) which is connected thereto, said central pinion in turn driving the control wheel (2) which finally drives the function corrector pinion (3) in one direction or the other.

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