CH718698B1 - Watch mechanism for correcting multiple displays. - Google Patents

Abstract

The invention relates to a watch mechanism (1) comprising a first correction device (10) for a first display, a second correction device (20) for a second display and a control member (30) operable by a user to control said first and second correction devices. The control member (30) is able to move along a predefined trajectory between a rest position and an extreme position under the effect of a force exerted by the user and to return to its rest position after cessation of this force under the effect of an elastic return member. In addition, during its movement from its rest position to its extreme position, the control member (30) successively travels a first part of travel in which it actuates the first display correction device (10) then a second stroke part in which it actuates the second display correction device (20). The invention also relates to a timepiece comprising a first and a second display member as well as such a watch mechanism making it possible to correct the position of said display members.

Description

[0001] The present invention relates to a watch mechanism comprising a first device for correcting a first display, a second device for correcting a second display and a control member operable by a user to control said first and second correction devices . The invention also relates to a timepiece comprising a first and a second display member as well as a watch mechanism according to the invention making it possible to correct the position of said display members.

[0002] Watches including a date display generally have a date display correction device making it possible to manually advance the thirty-one star, the positioning of which is ensured by a jumper. Such a correction device typically comprises a stroller or corrector adjusted freely to the middle and operable using a pointed tool or a push button driven into the middle. Pressing this corrector or this push button causes the thirty-one star to rotate one step. One tooth of the thirty-one star lifts the necklace which falls between the next two teeth of the thirty-one star to hold it in its new rest position. The same type of correction device can be used for correcting the display of the days of the week by acting on a star of seven (days), for correcting the display of the month by acting on a star of twelve (months) or for the correction of any other display.

[0003] A disadvantage of such correction mechanisms lies in the fact that each of them requires its own push button or corrector for its actuation. This can quickly become cumbersome in a timepiece displaying a lot of information, particularly in a watch such as a pocket watch or wristwatch in which space considerations are particularly limiting. In addition, increasing the number of push buttons and/or correctors inevitably increases costs and constraints, particularly to guarantee watertightness.

[0004] Watch mechanisms comprising several display devices operable by means of the same control member are known. For example, we know of timepieces making it possible to display both the day of the week and the date and comprising a winding stem allowing the choice of correcting the display of the date or that of the day of the week. Some of them include a winding stem capable of taking several distinct axial positions, intermediate between the winding position (rest) and the time setting position (pulled), and allowing in one of these axial positions to correct the date and in another to correct the day of the week. Others include a winding stem allowing the date to be corrected by pivoting in one direction and the day of the week to be corrected by pivoting in the other direction.

[0005] An aim of the present invention is to propose a watch mechanism, alternative to those known, which comprises several correction devices, each of them controlling the correction of a display, and a single control means allowing the control of these correction devices.

[0006] To this end, the present invention relates to a watch mechanism comprising a first device for correcting a first display, a second device for correcting a second display and a control member operable by a user to control said first and second correction devices.

[0007] According to the invention, the control member of the watch mechanism is able to move along a predefined trajectory between a rest position and an extreme position under the effect of a force exerted by the user and to return in its rest position after the cessation of this force under the effect of an elastic return member. During its movement from its rest position to its extreme position, the control member successively travels through a first part of travel in which it activates the first correction device then a second part of travel in which it activates the second correction device. correction. Thus, the user can, depending on the force he exerts, stop the movement of the control member from its rest position towards its extreme position in an intermediate position, located between the rest position and the extreme position, of so as to only activate the function(s) associated with the fully completed part(s) of the race. More generally, the user can adapt the intensity of the force as well as the way in which he applies it (successions of pressures and releases, complete or partial) depending on the correction(s) he wishes to make. .

[0008] The user can typically exert a force causing the control member to move from its rest position to a position in which it will have completely covered the first part of the stroke and will not have or at least have not completely covered the second part of the stroke then completely stop the application of this force. Such a maneuver will have the effect of correcting the display associated with the first correction device without correcting that associated with the second correction device.

[0009] Alternatively, the user can exert a force causing the control member to move from its rest position to a position in which it will have completely covered the first part of travel then the second part of travel then stop completely the application of this force. Such a maneuver will have the effect of successively correcting the display associated with the first correction device (without correcting that associated with the second correction device) then correcting that associated with the second correction device (without again correcting that associated with the first correction device). correction).

[0010] After correcting the display associated with the second correction device, instead of completely stopping the application of the force pushing the control member towards its extreme position, the user can adapt the force he applies to control the movement of this organ so as to let it return to its resting position without reaching it. Thus it is able to correct again only the display associated with the second correction device.

[0011] In the context of the present invention the expression “correct a display” typically means moving a display member or indicator such as a disk, a needle or an index.

Advantageously, the control member is guided in translation between the rest position and the extreme position.

[0013] Preferably, each of the first and second displays can be a display of the date, the month, the day of the week, the number of the week, the year, a time display (typically hour or minute) which can be the main time display or a secondary time display associated for example with an additional time zone, an alarm clock, sunrise, sunset, tides or a chronograph, a moon phase display or a time display countdown.

[0014] Advantageously, the first and second display correction devices respectively comprise a first and a second control cam, each of these control cams being intended to pivot consecutively to the actuation of the display correction device to which it belongs.

[0015] Preferably, said first and second control cams are a first and a second control star, each of them being intended to pivot by one step following the actuation of the display correction device to which it belongs. .

[0016] The control member of the mechanism according to the invention typically comprises a first stop intended to cooperate with an actuating member of the first correction device and a second stop intended to cooperate with an actuating member of the second correction device. display correction.

[0017] Preferably, each of said actuating members is pivotable and cooperates with the control cam of its display correction device.

[0018] Typically, when the control member travels the first part of travel, it pivots the actuating member of the first display correction device from a rest position to an actuation position causing the pivoting of the first control cam or, in the particular case where this cam is a star, the advancement of one step of the first control star. Likewise, when the control member travels the second part of travel, it pivots the actuating member of the second display correction device from a rest position towards an actuation position causing the pivoting of the second control cam or, in the particular case where this cam is a star, the advancement of one step of the second control star.

[0019] Advantageously, the actuation of the second display correction device requires a significant increase in the force to be exerted by the user compared to that necessary for the actuation of the first correction device, that is to say say that this increase in force must be perceptible to the user. Typically, the mechanism according to the invention comprises an additional elastic return member opposing the pivoting of the actuating member of the second display correction device.

[0020] The invention also relates to a timepiece, typically a watch such as a pocket watch or a wristwatch, comprising a watch mechanism according to the invention. Such a timepiece typically comprises a first and a second display member as well as a watch mechanism according to the invention making it possible to correct the position of said display members.

[0021] The actuation of the control member of such a timepiece by the user can be done from outside the watch case in which the mechanism is housed. It is typically done under the effect of pressure on an actuating means such as a pusher. It can for example be a corrector embedded in the middle part or a push button protruding outside the middle part. Alternatively, we can envisage that a part coming from a part with the control member is directly accessible from outside the watch case.

[0022] Other characteristics and advantages of the present invention will appear on reading the following detailed description made with reference to the appended drawings in which: - Figure 1 illustrates in top view, partially by transparency, part of a timepiece comprising a mechanism according to a particular embodiment of the invention; – Figures 2 to 8 illustrate in top view, partially by transparency, the mechanism illustrated in Figure 1 in successive configurations reached when a control member that it comprises is moved from a rest position to a extreme position.

[0023] Figure 1 illustrates a part of a timepiece such as a wristwatch or a pocket watch according to a particular embodiment of the invention. This timepiece comprises a frame, typically a plate 100, on which a watch mechanism 1 is mounted according to a particular embodiment of the invention.

The watch mechanism 1 comprises a first correction device 10 for a first display, a second correction device 20 for a second display and a control member 30 operable by a user to control said first and second correction devices .

The control member 30 is intended to move in translation between a rest position illustrated in Figure 1 and an extreme position illustrated in Figure 8 under the effect of a force F exerted by a user from the outside of the watch box. This force F is illustrated in Figure 1. It is applied by pressure on a control pusher (not illustrated) cooperating with the control member 30. This control pusher is typically a corrector embedded in the middle, a push button projecting outside the middle or simply a part of the control member 30 accessible directly from outside the watch case.

The control member 30 is also capable of returning to its rest position after the cessation of this force F under the effect of an elastic return member (not illustrated) which is armed when the control member control 30 moves from its rest position to its extreme position.

[0027] When moving from its rest position to its extreme position, the control member 30 travels through a first part of travel illustrated in Figures 2 to 4 during which it actuates the first correction device 10 so as to correct the first display then a second part of travel illustrated in Figures 5 to 8 during which it activates the second correction device 20 so as to correct the second display.

The first correction device 10 of the mechanism 1 comprises a five-star 11 mounted freely in rotation on the plate 100, a jumper 12 positioning said five-star and a pawl 13. The pawl 13 comprises a nozzle 131 capable of penetrating in the teeth of the five star 11 and a protuberance 132 arranged between two stops 311, 312 of the control member 30.

Thus, when the control member 30 travels through said first part of travel, a first 311 of said two stops pushes the protuberance 132 of the pawl 13 and causes it to pivot counterclockwise. The nose 131 of the pawl 13 then acts on the five star 11 and causes it to pivot one step clockwise. Figure 2 illustrates the contacting of the nozzle 131 on a tooth of the five star 11, Figure 3 illustrates the lifting of the jumper 12 under the effect of the pivoting of the five star 11 and Figure 4 illustrates the mechanism once said tooth has passed.

[0030] The five star 11 typically controls a date display. As illustrated in Figures 1 to 4, it is mounted coaxially and integral in rotation with a wheel 14 with wide teeth. This wheel 14 typically meshes with the internal teeth of a display crown (not shown) with thirty-one teeth carrying on its upper face a graduation for displaying the date provided so that the date is readable through a aperture of the timepiece or on a revealer under an indicator (skeletonized, openwork, transparent or other...)

[0031] Thus, each time the wearer of a watch comprising a watch mechanism such as mechanism 1 presses the control pusher and causes the control member 30 to travel through at least its first part of the stroke, he makes advance the associated date display one step.

Then, when the control pusher is completely released, the control member 30 returns to its initial position under the effect of the force generated by the elastic return member (not illustrated) mentioned above. The protuberance 132 of the pawl 13 then cooperates with the second 312 of the stops of the control member 30 and returns the pawl 13 to its rest position.

[0033] During this return, the nose of the pawl 13 slightly rotates the five star 11 in the counterclockwise direction but not enough to move it back one step. This then re-stabilizes in its corrected position thanks to the jumper 12. To avoid this recoil, although it has no impact, the pawl 13 could be replaced by a retractable pawl when it pivots in the anti direction. -hourly.

[0034] As a variant, one could imagine removing the second stop 312 of the control member 30 and adding a spring maintaining the protuberance 132 of the pawl 13 resting against the stop 311 of the control member 30.

As can be seen in Figure 8, the stops as well as the pawl 13 are arranged so that, even in the extreme position of the control member 30, the protuberance 132 remains between the stops 311 and 312. This is necessary for the return to the rest position of the pawl 13 if the latter is not itself directly subjected to a restoring force.

The second correction device 20 of the mechanism 1 comprises a star of twelve 21 mounted freely in rotation on the plate 100 and positioned by a jumper 22. It also comprises a pawl 23 comprising a nose 231 capable of penetrating the teeth of the star of twelve 21 and a support portion 232 intended to cooperate with a third stop 32 of the control member 30. In the rest position, the pawl 23 is held in abutment against a first pin 241 fixedly mounted on the plate 100. It further comprises a notch 233 connected to the rest of the pawl 23 by an elastic arm 234. The notch 233 comprises two inclined planes 2331, 2332 intended to cooperate with a second pin 242 fixedly mounted on the plate 100 and tensioning, under the effect of the elastic return force of the elastic arm 234, to maintain the pawl 23 in its rest position, resting against the first pin 241. When the control member 30 travels the second part of travel, its third stop 32 pushes the support portion 232 of the pawl 23 and causes the latter to rotate in the counterclockwise direction. Its beak 231 cooperates with the teeth of the twelve star 21 and rotates it one step clockwise.

[0037] The twelve star 21 typically controls a display of the months. To this end, it is typically mounted coaxially and rotationally with a month display disc (not shown). This month display disc bears on its upper face a graduation of the months designed so that the current month can be read through an aperture of the timepiece or on a revealer under an indicator (skeletonized, perforated, transparent, or other).

[0038] Thus, each time the wearer of a watch comprising a watch mechanism such as mechanism 1 presses the control pusher and causes the control member 30 to travel through its second part of travel, typically when it continues to press the control button after correcting the date display, it advances the associated month display by one step.

[0039] After the control member 30 has traveled the second part of the stroke, if the user completely releases the control pusher, the control member 30 returns to its initial position under the effect of the force generated by the elastic return member (not illustrated) mentioned previously in two stages: – In a first stage, the system comprising the notch 233, the elastic arm 234 and the pin 242 returns the pawl 23 to its rest position. As with the return of the pawl 13, during this return, the nose of the pawl 231 slightly rotates the twelve star 21 counterclockwise but not enough to move it back one step. This then re-stabilizes in its corrected position thanks to the jumper 22. To avoid this recoil, although it has no impact, the pawl 23 could be replaced by a retractable pawl when it pivots in the anti direction. -hourly. – In a second step, the protuberance 132 of the pawl 13 cooperates with the second 312 of the stops of the control member 30 and returns the pawl 13 to its rest position, as described previously.

Alternatively, after the control member 30 has traveled the second part of the stroke, the user can choose to only partially release the control button to allow only the first of said two stages to occur. Then from there (the mechanism 1 then being in a configuration close to that illustrated in Figure 4), the user can push the control pusher again to correct the month display again. Repeating such a maneuver will allow several corrections to be made to the month display without impacting the date display.

[0041] The user of a timepiece according to the present invention can, thanks to the watch mechanism 1 which it comprises, activate, as desired, only the first correction device 10, the first 10 then the second device 20 correction then possibly only the second correction device 20. In fact, it can, depending on the force it exerts on the control pusher, cause the control member 30 to travel only the first part of the stroke to correct only the date display, make it go through the first part of the stroke then the second part of the stroke to correct the date display and the month display then possibly make it go through only the second part of the stroke several times to correct display the month several times in a row.

[0042] In the example illustrated, the arrangement of the elastic arm 234 and the notch 233 bearing against the pin 242 is such that a peak of force is necessary to release the first inclined plane 2331 from the pin 242 and bring the second inclined plane 2332 against the pin 242. This is not essential but advantageous in that it allows the user on the one hand to confirm that he has activated the first correction device (which he can also see thanks to the display) and on the other hand to make him feel that if he continues to push the pusher (to overcome this force peak) he will activate the second correction device and correct the second display.

Other means of indicating to the user the progress of the control member 30 are possible, in particular sound means.

As illustrated in Figures 1 to 8, the control member 30 is typically guided in translation by means of a slide system. For this purpose it comprises two oblong holes 33 in which two pins 34 fixed on the plate 100 slide. Those skilled in the art will obviously be able to replace this guiding system with another equivalent while remaining within the framework defined by the present invention. Alternatively, the control member 30 could also be guided in rotation or follow a trajectory that is neither completely rectilinear nor completely circular.

The preceding 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 characteristics which have just been described, such as for example the number of displays that the mechanism can correct. Indeed, in variants, one could very well imagine a mechanism using the principle of the invention and still defining a third stroke part and a third display correction device. The principle of the invention could also be extended to an even greater number of display corrections. Thus, the watch mechanism according to the invention can comprise n correction devices (d1, d2, ..., dn) allowing the correction of n respective displays (a1, a2, ..., an), n being a higher integer or equal to 3. In this case, it is arranged so that, during its movement from its rest position to its extreme position, the control member 30 successively travels through n parts of travel (c1, c2, .. ., cn) which respectively correspond to the n correction devices (d1, d2, ..., dn) and actuates, at the end of each part of the stroke traveled, the corresponding display device.

The watch mechanism 1 illustrated typically makes it possible to correct a date display and a month display. It could for example be used in a mechanism such as that described in the European patent application published under number EP 3 644 130 A1. However, as indicated previously, displays correctable via this mechanism could be chosen from other types of displays.

[0047] A person skilled in the art will know how to adapt the correction device to the display that it is intended to correct. Indeed, if the mechanism 1 includes a five 11 star controlling a date display and a twelve 21 star controlling a month display, each of these stars could be replaced, depending on the type of display it controls, by another type of cam. For example, in the case of a device for correcting a chronograph display, the star could be replaced by a reset core.

[0048] Finally, it is obvious that the shape of the different organs can vary infinitely as long as their functions are ensured.

Claims (14)

1. Watch mechanism (1) comprising a first correction device (10) of a first display, a second correction device (20) of a second display and a control member (30) operable by a user to control said first and second correction devices, characterized in that the control member (30) is capable of moving along a predefined trajectory between a rest position and an extreme position under the effect of a force exerted by the user and to return to its rest position after the cessation of this force under the effect of an elastic return member, and in that during its movement from its rest position towards its extreme position, the control member (30) successively travels through a first part of travel in which it actuates the first display correction device (10) then a second part of travel in which it actuates the second display correction device (20). 2. Watch mechanism (1) according to claim 1, characterized in that said transmission member (30) is guided in translation between the rest position and the extreme position. 3. Watch mechanism (1) according to claim 1 or 2, characterized in that each of the first and second display correction devices is chosen from a device for correcting a display of the date, month, day of the week, week number, year, hours, minutes, moon phase, time zone, alarm, sunrise and sunset or tide times, countdown . 4. Watch mechanism (1) according to any one of the preceding claims, characterized in that the first and second display correction devices (10; 20) respectively comprise a first (11) and a second (21) cam. control, each of these control cams (11; 21) being intended to pivot consecutively to the actuation of the display correction device (10; 20) to which it belongs. 5. Watch mechanism (1) according to claim 4, characterized in that said first and second control cams are control stars, each of them being intended to pivot by one step following the actuation of the correction device display (10; 20) to which it belongs. 6. Watch mechanism (1) according to one of the preceding claims, characterized in that the control member (30) comprises a first stop (311) intended to cooperate with an actuating member (13) of the first control device. display correction (10) and a second stop (32) intended to cooperate with an actuating member (23) of the second display correction device (20). 7. Watch mechanism (1) according to claims 5 and 6, characterized in that each of said actuating members (13; 23) is pivotable and cooperates with a tooth of the control star (11; 21) of its device display correction (10; 20). 8. Watch mechanism (1) according to any one of the preceding claims, characterized in that the actuation of the second display correction device (20) requires a significant increase in the force to be exerted by the user relative to that necessary for actuation of the first correction device (10). 9. Watch mechanism (1) according to any one of the preceding claims, characterized in that it is arranged so that the user can correct the display associated with the first correction device (10) then that associated with the second device correction device (20) and then carry out successive corrections of the display associated with the second correction device (20) without again correcting the display associated with the first correction device (10). 10. Watch mechanism (1) according to any one of claims 7 to 9 and according to claim 6, characterized in that it comprises an additional elastic return member opposing the pivoting of the actuating member (23 ) of the second display correction device (20). 11. Watch mechanism (1) according to any one of the preceding claims, characterized in that it comprises n correction devices allowing the correction of n respective displays, n being an integer greater than or equal to 3, and in that, during its movement from its rest position to its extreme position, the control member successively travels through n parts of travel which correspond respectively to the n correction devices and activates, at the end of each part of travel, the display device corresponding. 12. Timepiece comprising a first and a second display members as well as a watch mechanism (1) according to one of the preceding claims making it possible to correct the position of said display members. 13. Timepiece according to claim 12, characterized in that it comprises a box and means for actuating said watch mechanism (1), accessible from outside the box. 14. Timepiece according to claim 13, characterized in that said actuation means is a pusher projecting from the periphery of the middle part or embedded in the middle part and cooperating with the control member.