CORRECTION DEVICE FOR AT LEAST ONE COMPLICATION OF A CLOCK

Description

[0001] The present invention relates to a device for correcting a number N of complications of a timepiece, N being an integer greater than or equal to 2, comprising a mechanism for selecting the complication to be corrected arranged to be actuated by a first selection control member, a correcting gear train comprising at least one correcting wheel, arranged to be actuated by a second correction control member to correct the selected complication to be corrected, and N complication correction mechanisms arranged to be able to cooperate with the correcting gear train to correct their respective complication.

[0002] Such correction devices are used in complicated watches to correct the information displayed by these various complications. By definition, a complication is a function other than displaying the hours, minutes, and seconds. The complications to be corrected in connection with the present invention relate more specifically to "astronomical" complications, such as the indication of the date, day, month, or moon phase.

[0003] Traditionally, a watch is equipped with a winding stem, which can be in a neutral position for winding, a pulled-out position for setting the time, and a pulled-out position for correcting the date, for example. Therefore, only one complication can generally be corrected using the winding stem. To correct other complications, various pushers must be provided and distributed around the watch case, the number of pushers corresponding to the number of complications to be corrected. These various pushers on the watch case, dictated by the number of complications, can be considered somewhat unsightly.

[0004] To solve this problem, patent EP 2 701 015, for example, proposed a device for correcting a plurality N of time functions displayed by a timepiece. This correction device comprises a pusher for selecting the complication to be corrected, the actuation of which rotates a selection wheel carrying a correcting wheel. This wheel engages the correcting wheel with a correcting pinion for the selected complication. The correcting wheel is also rotated by the winding stem, in one of its two pulled positions, by means of a suitable gear train, which in turn rotates the correcting pinion to correct the complication.

[0005] Such a device makes it possible to eliminate all correction pushers, retaining only one pusher to select the complication to be corrected and the winding stem to perform the correction.

[0006] However, this device is not suitable if one wishes to eliminate the use of any pusher, and to be able to select the complication to be corrected and correct said complication only by rotational movements of two control organs.

[0007] This device is also unsuitable if one wishes to eliminate the use of any pusher, and retain only a single control rod, such as the winding stem, to both select the complication to be corrected and correct said complication.

[0008] Patent application WO 2019 / 175687 describes a timepiece comprising a correction mechanism for correcting both a first indication, for example the time in a second time zone, and a second indication, for example the date. The correction mechanism includes a winding stem and a sliding element that moves into a first position where it drives a display element for the first indication when the winding stem is turned in a first direction of rotation, and which moves into a second position where it drives a display element for the second indication when the winding stem is turned in a second direction of rotation opposite to the first.

[0009] We also know of patent CH 702803, which describes a mechanism for correcting at least two displayed pieces of information other than the current time. This correction mechanism comprises a push-button crown, a control lever on which an arm is articulated, and correction levers. Depending on the crown's rotation, the arm is positioned at different angles and can be aligned with either of the correction levers. Pressing the push-button actuates the control lever, which, via the arm, actuates the correction lever opposite the arm to correct the corresponding information.

[0010] The present invention aims to remedy the aforementioned drawbacks by proposing a correction device that allows one complication to be selected and corrected from among a plurality of complications solely by rotational movements of two selection and correction control organs, eliminating any selection and / or correction pusher.

[0011] More particularly, the present invention proposes a correction device allowing the selection and correction of a complication from among a plurality of complications solely by rotational movements of a single control organ, and in particular to perform the correction of all complications by the single winding stem.

[0012] To this end, the present invention relates to a device for correcting a number N of complications of a timepiece, N being an integer greater than or equal to 2, comprising a mechanism for selecting the complication to be corrected arranged to be actuated by a first selection control member, a correcting gear train comprising at least one correcting wheel, arranged to be actuated by a second correction control member to correct the selected complication to be corrected, and N complication correction mechanisms arranged to be able to cooperate with the correcting gear train to correct their respective complication.

[0013] According to the invention, the correcting gear train is mounted freely for rotation on a frame, and the selection mechanism comprises a selection wheel mounted movably for rotation on said frame, said selection wheel comprising rotational drive means arranged to cooperate with the first selection control member to drive said selection wheel in rotation and at least one activation member for the correction mechanism of the selected complication to be corrected, arranged to be moved with the selection wheel so as to cooperate with the correction mechanism of the selected complication to be corrected in order to move it from a passive position, in which said correction mechanism does not cooperate with the selection wheel, the correcting gear train, or its respective complication.to an active position in which said correction mechanism of the selected complication to be corrected can cooperate with the correcting gear train to be actuated when said correcting gear train is activated by the second correction control organ, in order to cooperate with said selected complication to be corrected to perform its correction.

[0014] According to a preferred embodiment, a correction mechanism for a complication includes at least one rocker arranged to have a first selector arm arranged to cooperate with the activation member of the selection wheel when it is in its travel in order to rock, once, into the active position, and a second corrector arm arranged to cooperate with the corrector gear train when the correction mechanism is in the active position, in order to rock a second time when the corrector gear train is actuated, as well as a third actuator arm arranged to rock with said second corrector arm in order to actuate said complication to correct it.

[0015] Advantageously, the first selection control element and the second correction control element consist of rods arranged to be actuated by rotational movements given by a user.

[0016] According to a preferred embodiment, the first selection control organ and the second correction control organ are constituted by a single control rod, said control rod being for example the winding stem.

[0017] Thus, the correction device of the invention allows for a system of correction of all complications solely by the winding stem, the selection and correction of the complication to be corrected being carried out solely by rotational movements of the winding stem given by a user.

[0018] The present invention also relates to a timepiece comprising a correction device as described above.

[0019] Other features and advantages of the present invention will become apparent from the following detailed description of an embodiment of the invention, given by way of non-limiting example, and made with reference to the accompanying drawings in which: there figure 1 is a top view of a timepiece comprising various complications and a correcting device according to the invention, in a neutral position; the figure 2 is a view of the device figure 1 with the selection mechanism activated and all correction mechanisms in the passive position; figure 3 is a view of the device of the figure 1 the mechanism for correcting the selected complication being in the active position; the figure 4 is a view of the device of the figure 3 , the correcting gear being activated and the correction mechanism being in the active position after having tilted once; the figure 5 is a view of the device of the figure 4 , the correcting gear being activated and the correction mechanism being in the active position and having tilted a second time to perform the correction; and the figure 6 is a view of the device of the figure 5 , the correcting gear being activated and the correction mechanism being in the active position and cooperating with its complication to perform its correction.

[0020] With reference to the figure 1 A timepiece 1, such as a wristwatch, is shown, traditionally comprising a case 2, such as a mainplate, on which is mounted a movement comprising N complications, where N is an integer greater than or equal to 2. In the example shown, the timepiece 1 comprises four complications: the date indicator by means of a date star 4, the day indicator by means of a day star 6, the month indicator by means of a month indicator wheel 8, and the moon phase indicator by means of a moon star 10. The mechanism of each of these complications is known to those skilled in the art and does not require a detailed description here. It is understood that other complications may be included or that some complications may not be shown.

[0021] Each complication includes a correction mechanism allowing manual correction of its indication, if necessary, for example after stopping the watch.

[0022] To this end, a mechanism is provided for selecting the complication to be corrected, said selection mechanism being arranged to be actuated by a first selection control organ in order to choose and activate the correction mechanism of the complication which must be corrected.

[0023] A correcting gear train is also provided, comprising at least one correcting wheel. This correcting gear train is fixed relative to the frame 2 and mounted to rotate freely on said frame 2. The correcting gear train is arranged to be actuated by a second correction control organ to correct the selected complication via the correction mechanisms. The correcting gear train includes at least one correcting wheel with which the complication correction mechanisms are capable of cooperating, as will be described later.In the embodiment shown, the correction gear train comprises one correction wheel per complication, and therefore four correction wheels 12, 14, 16, 18, as well as the linkages 20a, 20b, 20c, 20d necessary to kinematically link all the correction wheels together to the second correction control member. The correction wheels 12, 14, 16, 18, and the linkages 20a, 20b, 20c, 20d are fixed to the frame 2 and mounted freely to rotate about their respective axes on said frame 2. The actuation of the second correction control member will therefore cause a simultaneous rotation of all the linkages 20a, 20b, 20c, 20d and the correction wheels 12, 14, 16, 18. Each correction wheel 12, 14, 16, 18 have on their board, for example, pins arranged to be able to cooperate with the correction mechanism during correction, as will be detailed below.The number of pins is adjusted according to the frequency of correction for one revolution of the corresponding correcting wheel. It is clear that the number of correcting wheels may be less than the number of complications to be corrected, as a single correcting wheel can be configured to work with several correction mechanisms.

[0024] Advantageously, the first selection control element and the second correction control element consist of control rods arranged to be actuated by rotational movements of a user. These control rods may be separate or form a single control rod, with selection and correction being performed by means of the same control rod.

[0025] In the embodiment shown, the first selection control member consists of a control rod positioned in a selection / correction position and actuated in one direction of rotation to perform the selection of the complication to be corrected, and the second correction control member consists of said control rod positioned in said selection / correction position and actuated in the other direction of rotation to perform the correction of the selected complication to be corrected.

[0026] More specifically, said control stem is the winding stem of the movement, schematically represented by reference numeral 22. This winding stem 22 can conventionally occupy a pushed-in position for winding, a first pulled-out position for setting the time, and a second pulled-out position for selection / correction. The winding stem 22 includes, as is known, a winding pinion (not shown) arranged to cooperate with a main gear 24 when the winding stem 22 is in its second pulled-out position for selection / correction, and whose role will be described below.

[0027] In another embodiment not shown, the first selection control element consists of a control rod positioned in a first selection position, and the second correction control element consists of said control rod positioned in a second correction position, different from the first selection position. This single control rod can advantageously be the winding stem, which will then be arranged to have four positions: a pushed-in position for winding, a first pulled-out position for setting the time, a second pulled-out position for selecting the complication to be corrected, and a third pulled-out position for correcting said complication.The main linkage 24 will be replaced by a linkage arranged to kinematically connect the winding stem to the selection mechanism when the winding stem is in its selection position, and by another linkage arranged to kinematically connect the winding stem to the correcting gear train when the winding stem is in its correction position. This construction advantageously allows the complication to be selected and corrected by rotating the winding stem in either direction for each of its selection and correction positions.

[0028] According to the invention, the selection mechanism comprises a selection wheel 26 mounted for rotation on the frame 2, held and guided in rotation by pins 28 mounted on said frame 2 and arranged tangentially to the selection wheel 26. Advantageously, the selection wheel 26 is arranged to present an internal space in which all the complications, their correction mechanisms, and the correcting gear train are positioned. The selection wheel may be in the form of a ring surrounding the movement, and in particular the complications, their correction mechanisms, and the correcting gear train, said ring being free to rotate about the central axis of the movement. The selection wheel 26 and the correcting gear train are therefore independent of each other.

[0029] The selection wheel 26 includes rotational drive means arranged to cooperate with the first selection control member to rotate said selection wheel 26. A jumper 29 is provided for holding the selection wheel 26 in position.

[0030] More specifically, the selector wheel 26 includes a first stage carrying the drive means. Advantageously, the drive means comprise a regular internal toothing 30 arranged to cooperate with the first control member, and more particularly with the main linkage 24 and the winding stem 22. The drive means also include a two-armed hook 32, pivotally mounted on the plate 2 and integral with a coaxial pinion 34. The arms of the hook 32 are arranged to actuate the teeth of the internal toothing 30 when the selector control member, here the winding stem 22, is actuation, so as to drive the selector wheel 26 in a clockwise direction, for example, by rotating the winding stem 22.For this purpose, a sliding pinion 36 is provided, arranged to cooperate with the control stem, here the winding stem 22, and to move into a first selection position in which it cooperates with the drive means for rotating the selector wheel 26 when the control stem is actuated in one direction of rotation, and into a second correction position in which it cooperates with the correcting gear train when the control stem is actuated in the other direction of rotation. More specifically, the sliding pinion 36 is arranged to mesh with the main linkage 24 and to move, when the winding stem 22 is actuated, from its first selection position, in which it cooperates with the pinion 34 of the hook 32 via a linkage 38, to its second correction position, in which it cooperates with the first linkage 20a of the correcting gear train. In the neutral position as shown in the figure. figure 1 , the sliding pinion 36 does not cooperate with the return 20a of the correcting gear nor with the return 38 of the drive means of the selection wheel 26.

[0031] The number of arms of the hook 32 and the dimensions of the sliding pinion 36, the linkage 38, the pinion 34 and the teeth 30 are adapted according to the rotational speed that we want to give to the selection wheel 26 when the winding stem 22 is operated in rotation.

[0032] The selection wheel 26 also includes at least one activation member 40 of the correction mechanism of the selected complication to be corrected, arranged to be moved with the selection wheel 26, when it rotates, so as to cooperate with the correction mechanism of the selected complication to be corrected in order to move it by tilting it from a passive position, in which said correction mechanism does not cooperate with the selection wheel, the correcting gear train, or its respective complication, to an active position in which said correction mechanism of the selected complication to be corrected can cooperate with the correcting gear train to be actuated when said correcting gear train is activated by the second correction control member, here the winding stem 22, in order to cooperate with said selected complication to be corrected to perform its correction.

[0033] Preferably, the selection wheel 26 includes at least two activation organs 40 for the correction mechanisms, said activation organs 40 being arranged on the selection wheel 26 so that when one of the correction mechanisms is in the active position, the correction mechanisms for the other complications are in the passive position.

[0034] Advantageously, the selection wheel 26 includes a second stage carrying said at least one activation member 40. These activation members 40 are constituted, for example, by protrusions or bumps distributed on the inner periphery of the second stage of the selection wheel 26 and projecting towards the interior of the separation wheel 26, the correction mechanisms being arranged to be positioned in the stroke of the protrusion(s) 40 so as to be able to cooperate with it or one of them during the rotation of the selection wheel 26 and to move, by tilting, from their inactive positions to their active positions, and return to their inactive positions when the correction is finished.

[0035] The protrusions 40 are distributed around the periphery of the selection wheel 26 relative to the positioning of the correction mechanisms so that no correction mechanism is in the active position when the correction device is in the neutral rest position, as shown in the figure 1 , and so that only the correction mechanism for the selected complication to be corrected is in the active position, the correction mechanisms for the other complications remaining in the passive position, as shown in the figures 3 à 6 .

[0036] Selection indicators may be provided to show the user which correction mechanism is selected and attached to the complication to be corrected.

[0037] Each of the correction mechanisms is arranged to correct the complication associated with it when said correction mechanism is activated.

[0038] Furthermore, in order to be able to be selected and moved into the active position on the one hand and to be able to correct the corresponding selected complication on the other hand, each correction mechanism is also arranged to cooperate on the one hand with the selection mechanism to be moved by a first tilt in order to be activated, and on the other hand with the correcting gear to carry out the correction via a second tilt, once activated.

[0039] To this end, each correction mechanism for a complication comprises at least one rocker 42, 44, 46, or 48, which may be single or multiple to accommodate the directions of rotation. It is arranged to present, overall, a first selector arm configured to cooperate with the activation member 40 of the selection wheel 26 when it is in its travel, in order to rock it once to the active position; a second corrector arm configured to cooperate with the corrector gear train when the correction mechanism is in the active position, in order to rock it a second time when the corrector gear train is activated; and a third actuator arm configured to rock with said second corrector arm to activate said complication. At least the second and third arms are fixed in rotation if the rocker is multiple. If the rocker is single, its three arms are fixed in rotation.More specifically, each second correcting arm is arranged to cooperate with the pins provided on the associated correcting wheel 12, 18, 14, 16, so that when the correction mechanism is in the active position, the second correcting arm of the rocker is in the travel of the pin of the associated correcting wheel. The rotation of said correcting wheel causes the second correcting arm, pushed by said pin, to rock, and thus causes the third actuating arm to rock to correct the complication. When the pin leaves the second correcting arm, the rocker returns to its active position that it had before the correction.

[0040] It is possible that a correction mechanism may require additional tilting to move certain elements of the complication before making the correction. The 40 protrusions are then arranged accordingly to allow these tilting mechanisms to be simultaneously moved into the active position.

[0041] Thus, the correction of the months indicated by means of the month indicator wheel 8 is carried out by means of the month correction mechanism, which includes the rocker 48, associated with the correction wheel 16, as well as another rocker 49 used to lift the large rocker 54 before carrying out the correction of the months, as will be specified below.

[0042] The correction of the day indicated by the day star 6 is carried out by means of the day correction mechanism, which includes the rocker 46, associated with the correcting wheel 14.

[0043] The correction of the moon phase indicated by the moon star 10 is carried out by means of the moon correction mechanism which includes the rocker 44, associated with the correcting wheel 18.

[0044] The correction of the date indicated by the date star 4, described in detail below in relation to the figures 2 à 6 , is carried out by means of the date correction mechanism, which includes the simple rocker 42, associated with the correcting wheel 12. The rocker 42 is pivotally mounted on an axis 50 and has a first selector arm 42a arranged to be lifted by one of the protuberances 40 to rotate the rocker 42 around its axis 50 into the active position, a second correcting arm 42b arranged to cooperate with one of the pins 52 of the correcting wheel 12 when the rocker 42 is in the active position and the correcting gear is actuated, and a third actuating arm 42c arranged to pivot with the second correcting arm 42b in order to actuate the large rocker 54 to actuate and correct the date star 4 by means of its beak 54a. The three arms 42a, 42b and 42c are fixed together in rotation, around axis 50.

[0045] The date correction is performed as follows: the correction device being in its neutral rest position according to the figure 1 The user operates the winding stem 22 in one direction to rotate the main linkage 24, the sliding pinion 36 which is in its selection position, the linkage 38 and the pinion 34 so as to rotate the hook 32 to actuate the teeth of the internal teeth 30 of the selection wheel 26 as shown in the figure 2 in order to rotate said selector wheel 26 around the central axis of the movement in a clockwise direction. The user rotates the winding stem 22 until the protrusion 40 reaches the level of the first selector arm 42a of the rocker 42, said rocker 42 being then in the passive position. The first selector arm 42a, being in the path of the protrusion 40, is lifted by said protrusion 40 so as to pivot the rocker 42 for the first time around its axis 50, into its active position, as shown in the figure. figure 3 The second and third arms 42b, 42c, which are fixed to the first arm 42a, have also tilted around the axis 50. The rocker 42 is held tilted in its active position by the protrusion 40, so that the second corrector arm 42b is in the stroke of the pins 52 of the corrector wheel 12 and the third actuator arm 42c has moved closer to the large rocker 54.

[0046] Once the complication to be corrected has been selected, the user makes the correction by turning the winding stem 22 in the opposite direction, rotating the sliding pinion 36 into its correction position, in which it engages with the corrector gear train 20a, as shown in the figure 4 . Actuating the winding stem 22 causes the rotation of the main gear 24, the sliding pinion 36, and all the gears 20a to 20d and the corrector wheels 12, 14, 16, 18 of the corrector train. When the corrector wheel 12, associated with the date correction mechanism, rotates counterclockwise, one of its pins 52 drives the second corrector arm 42b, which is in its path, causing it to pivot further, a second time, around the axis 50. The third actuator arm 42c pivots around the axis 50 with the second corrector arm 42b to cooperate with the large rocker 54, causing it to rotate around its axis 56, as shown in the diagram. figure 5 . The other correction mechanisms having remained in their passive position, not activated by one of the protuberances, the corresponding correction wheels 14, 16, 18 rotate without actuating them.

[0047] The correcting wheel 12 and the arms of the rocker 42 are dimensioned so that the pin 52 causes the rocker 42 and its third actuating arm 42c to rock until the beak 54a of the large rocker 54, pushed by said third actuating arm 42c, engages with the teeth of the date star 4, advancing it by one step, as shown in the figure 6 The pin 52, continuing to rotate with the correcting wheel 12 still operated by the user via the winding stem 22, leaves the second correcting arm 42b so that the rocker 42 is returned to its active position that it had before the correction by a return spring 58, the first selector arm 42a returning to rest on the protrusion 40, as shown in the figure 4 The user can continue to operate the winding stem 22 to operate the correcting gear train and perform a new date correction by a new tilting of the second correcting arm 42b, driven by one of the pins 52 of the correcting wheel 12, and therefore of the third actuating arm 42c.

[0048] If another complication needs to be corrected, the user again turns the winding stem 22 in the first direction to move the selector wheel 26 until one of the protrusions 40 reaches the first selector arm of the rocker of the correction mechanism associated with the complication to be corrected.

[0049] When the selection wheel continues its rotation, the rocker 42 leaves the protuberance 40 on which it rested so that it is returned to its passive position by its return spring 58.

[0050] The other complications are corrected in the same way. For example, with reference again to the figure 1 The moon phase correction is carried out in a similar manner to the date correction described above by means of the simple rocker 44 which has a first selector arm 44a, a second corrector arm 44b arranged to cooperate with one of the pins 60 of the corrector wheel 18 and a third actuator arm 44c arranged to rock with the second corrector arm 44b in order to actuate the moon star 10 to correct the moon when the second arm 44b is in the travel of one of said pins 60. The three arms 44a, 44b and 44c are fixed in rotation, about the axis 62.

[0051] The month correction is achieved by means of the multiple rocker 48, which comprises a first rocker element 48' with a first selector arm 48a, and a second rocker element 48" with a second corrector arm 48b arranged to cooperate with one of the pins 64 of the corrector wheel 16, and a third actuator arm 48c arranged to pivot with the second corrector arm 48b in order to actuate the month indicator wheel 8 to correct the month. The two arms 48b and 48c are rotationally fixed about the axis 68.The first selector arm 48a carried by the first rocker element 48' is arranged to pivot around its axis 70 when it is moved into active position by one of the protrusions 40 so as to pivot in turn, by means of an intermediate beak 71, the second rocker element 48" and therefore the second and third arms 48b and 48c around their axis 68 to allow the correction of the month, via a new pivoting, when the second arm 48b is in the stroke of one of the pins 64 of the correcting wheel 16.Furthermore, the protrusions 40 are arranged on the selection wheel 26 so that when one protrusion 40 actuates the rocker 48 to move it into the active position, another protrusion 40 actuates the additional rocker 49 at the time of selection of the complication indicating the month, to rock it in order to lift the large rocker 54 by pressing on the pin 72 and move it away from the month cam 73 carried by the month indicator wheel 8. This allows the month cam 73 to be released before making the correction.

[0052] The day correction is achieved by means of the multiple rocker 46, which comprises a first rocker element 46' with a first selector arm 46a, and a second rocker element 46" with a second corrector arm 46b arranged to cooperate with one of the pins 74 of the corrector wheel 14, and a third actuator arm 46c arranged to pivot with the second corrector arm 46b in order to actuate the day star 6 to correct the day. The two arms 46b and 46c are rotationally fixed about the axis 76.The first selector arm 46a carried by the first rocker element 46' is arranged to pivot around its axis 78 when it is moved into active position by one of the protrusions 40 so as to pivot in turn, by means of an intermediate profile 79, the second rocker element 46" and therefore the second and third arms 46b and 46c around their axis 76 to allow the correction of the day, via a new pivoting, when the second arm 46b is in the stroke of one of the pins 74 of the correcting wheel 14.

[0053] Different return springs are provided to return the different rockers to their active position after each correction and to the passive position after leaving one of the protrusions 40.

[0054] The correction device according to the invention makes it possible to correct different complications by means of a single control element, and in particular by means of a winding stem.

[0055] It is simple to implement, as it requires few modifications to an existing movement, the components of existing complications requiring few modifications to be adapted to the correction device of the invention.

Claims

1. Device (1) for correction of a number N of complications of a timepiece, N being an integer greater than or equal to 2, comprising a mechanism for selection of the complication to be corrected, arranged to be actuated by rotation of a first selection control member (22), a correcting gear train comprising at least one correcting wheel (12, 14, 16, 18), arranged to be actuated by rotation of a second correction control member in order to correct the selected complication to be corrected, and N mechanisms for correction of the complications, arranged to be able to cooperate with the correcting gear train in order to correct their respective complication, the correcting gear train being mounted to rotate freely on a frame (2), the selection mechanism comprising a selection wheel (26) mounted to move in rotation on said frame (2), said selection wheel (26) comprising rotational drive means (30), arranged to cooperate with the first selection control member (22) in order to rotationally drive said selection wheel (26), in which correction device the selection wheel (26) also comprises at least one member (40) for activation of the mechanism for correction of the selected complication to be corrected, arranged to be moved with the selection wheel (26) so as to come into cooperation with the mechanism for correction of the selected complication to be corrected in order to move it from a passive position in which said correction mechanism does not cooperate with either the selection wheel (26) nor with the correcting gear train nor with its respective complication, to an active position in which said mechanism for correction of the selected complication to be corrected can cooperate with the correcting gear train in order to be actuated when said correcting gear train is activated by the second correction control member, in order to cooperate with said selected complication to be corrected in order to effect its correction.

2. Correction device as claimed in claim 1, characterised in that the selection wheel (26) comprises at least two members (40) for activation of the correction mechanisms, said activation members (40) being arranged on the selection wheel (26) so that when one of the correction mechanisms is in the active position, the correction mechanisms of the other complications are in the passive position.

3. Correction device as claimed in any one of the preceding claims, characterised in that the selection wheel (26) comprises a first stage bearing the drive means (30) and a second stage bearing said at least one activation member (40).

4. Correction device as claimed in any one of the preceding claims, characterised in that the means for driving the selection wheel comprise toothing (30) arranged to cooperate with the first selection control member (22).

5. Correction device as claimed in any one of the preceding claims, characterised in that the at least one activation member is formed by a projection (40) and in that the correction mechanisms are arranged to be disposed in the path of the projection (40) in order to be able to cooperate therewith upon rotation of the selection wheel (26) and to pass from their inactive positions to their active positions, and to return to their inactive positions when the correction is completed.

6. Correction device as claimed in any one of the preceding claims, characterised in that the mechanism for correction of a complication comprises at least one lever (42, 44, 46, 48) arranged to have a first selecting arm (42a, 44a, 46a, 48a) arranged to be able to cooperate with the activation member (40) of the selection wheel (26) when it is located on its path in order to tilt, a first time, into the active position, and a second correcting arm (42b, 44b, 46b, 48b) arranged to be able to cooperate with the correcting gear train when the correction mechanism is in the active position, in order to tilt a second time when the correcting gear train is actuated, as well as a third actuating arm (42c, 44c, 46c, 48c) arranged to tilt with said second correcting arm (42b, 44b, 46b, 48b) in order to actuate said complication to correct it.

7. Correction device as claimed in any one of the preceding claims, characterised in that the selection wheel (26) is arranged to have an internal space, in which the correction mechanisms, the correcting gear train and the complications are positioned.

8. Correction device as claimed in any one of the preceding claims, characterised in that the first selection control member and the second correction control member are formed by control stems arranged to be actuated by rotational movements.

9. Correction device as claimed in any one of claims 1 to 7, characterised in that the first selection control member is formed by a control stem positioned in a first selection position and in that the second correction control member is formed by said control stem positioned in a second correction position, different from the first selection position.

10. Correction device as claimed in any one of claims 1 to 7, characterised in that the first selection control member is formed by a control stem positioned in a selection / correction position and actuated in one direction of rotation in order to effect the selection of the complication to be corrected and in that the second correction control member is formed by said control stem positioned in said selection / correction position and actuated in the other direction of rotation in order to effect the correction of the selected complication to be corrected.

11. Correction device as claimed in claim 10, characterised in that it comprises a sliding gear (36) arranged to cooperate with the control stem and to move into a first selection position in which it cooperates with the means (30) for rotationally driving the selection wheel (26) when the control stem is actuated in one direction of rotation, and into a second correction position in which it cooperates with the correcting gear train when the control stem is actuated in the other direction of rotation.

12. Correction device as claimed in any one of claims 9 to 11, characterised in that the control stem is a winding stem (22).

13. Timepiece comprising a correction device as claimed in any one of the preceding claims.