EP3333641A1 - Clockwork mechanism for controlling a plurality of displays - Google Patents

Abstract

A control mechanism (100) for controlling a plurality of watch displays having a group with a first display (10) and a second display (20), said mechanism (100) being arranged to be driven in a period of time. reference by a driving wheel (1) of a clockwork movement (1000), and comprising, for each group of displays, a gear train (2) arranged to drive, according to a control period (TC), a wheel set control (3), this mechanism (100) comprising, for each group, a first control member, for controlling the first display (10), and a second control member, for controlling the second display (20), different times within the control period, and disengagement control means of the first control member, and the second control member.

Description

Field of the invention

The invention relates to a watchmaking mechanism for controlling a plurality of displays, said plurality of displays comprising at least one group comprising at least a first display and a second distinct display, said mechanism being arranged to be driven according to a period of time. reference by a driving wheel of a watch movement, said mechanism comprising, for each said group of displays, a gear train arranged to drive a control wheel according to a control period.

The invention also relates to a display mechanism comprising a plurality of displays controlled by such a clock control mechanism.

The invention also relates to a watch movement comprising such a display mechanism or such a watchmaking mechanism.

The invention also relates to a watch comprising such a clockwork movement, or such a display mechanism, or such a watchmaking mechanism.

The invention relates to the field of clock display mechanisms.

Background of the invention

In complicated timepieces, many functions include mobiles held in position by jumpers. The change of position often occurs during the change of date, and the motor means must provide a peak of energy consequent at this time. In addition, this time of day is not conducive to corrections, which are not recommended, between 22 hours and midnight, on many mechanisms.

Summary of the invention

It is advantageous to spread during the day energy consumption related to the periodic training of display of certain values of time.

The invention proposes to develop a single control mechanism, capable of managing multiple displays, with a simple and reliable system, It has few components, and is easy to modify at any time.

For this purpose, the invention relates to a watchmaking mechanism for controlling a plurality of displays, according to claim 1.

The invention also relates to a display mechanism comprising a plurality of displays controlled by such a clock control mechanism.

The invention also relates to a watch movement comprising such a display mechanism or such a watchmaking mechanism.

The invention also relates to a watch comprising such a clockwork movement, or such a display mechanism, or such a watchmaking mechanism.

The principle of the watchmaking mechanism according to the invention consists in oscillating a command, due to a complete cycle of oscillation for a given period, including but not limited to a period of one day. This oscillation is obtained by the combination of cams, whose extreme positions define the command times.

Brief description of the drawings

• la figure 1 représente, de façon schématisée, partielle, et en vue en plan, un mouvement d'horlogerie comportant un mécanisme d'affichage avec deux affichages distincts, de phase de lune et de quantième, commandés par un mécanisme horloger de commande selon l'invention, et un mécanisme de correction rapide agencé pour modifier les positions de ces deux affichages;
• les figures 2 à 6 représentent, en vue en plan, différentes positions remarquables du mécanisme de la figure 1 pendant une même journée, avec en figure 2 l'état du mécanisme au voisinage de minuit, en figures 3 et 4 l'entraînement d'une roue de lune pour l'affichage de phase de lune, et en figures 5 et 6 l'entraînement d'un pignon intermédiaire d'affichage du quantième ;
• la figure 7 représente le même mécanisme, en vue en coupe selon le tracé BB de la figure 1, détaillant l'entraînement de quantième et de phase de lune ;
• la figure 8 représente le même mécanisme, en vue en coupe selon le tracé EE de la figure 1, détaillant les sautoirs de quantième et de phase de lune ;
• la figure 9 représente, de façon similaire à la figure 1, le mécanisme de correction en position neutre ;
• la figure 10 représente, de façon similaire à la figure 1, le mécanisme de correction en position de correction de phase de lune;
• la figure 11 représente, de façon similaire à la figure 1, le mécanisme de correction en position de correction de quantième;
• la figure 12 représente le même mécanisme, en vue en coupe selon le tracé CC de la figure 1, détaillant la correction de phase de lune ;
• la figure 13 représente le même mécanisme, en vue en coupe selon le tracé AA de la figure 1, détaillant la correction de quantième ;
• la figure 14 est un schéma-blocs représentant une montre comportant un tel mouvement d'horlogerie, avec un tel mécanisme d'affichage, et un tel mécanisme horloger de commande de deux affichages distincts, ainsi qu'un tel mécanisme de correction de ces deux affichages.

Other features and advantages of the invention will appear on reading the detailed description which follows, with reference to the appended drawings, in which:

• the figure 1 represents, schematically, partially, and in plan view, a clockwork movement comprising a display mechanism with two distinct displays, moon phase and date, controlled by a clock control mechanism according to the invention, and a fast correction mechanism arranged to change the positions of these two displays;
• the Figures 2 to 6 represent, in plan view, different remarkable positions of the mechanism of the figure 1 during the same day, with figure 2 the state of the mechanism near midnight, in Figures 3 and 4 driving a moon wheel for moon phase display, and in Figures 5 and 6 driving an intermediate date display gear;
• the figure 7 represents the same mechanism, seen in section along the BB line of the figure 1 , detailing the date and moon phase training;
• the figure 8 represents the same mechanism, in sectional view along the EE line of the figure 1 , detailing the date and moonphase jumpers;
• the figure 9 represents, similarly to the figure 1 , the correction mechanism in the neutral position;
• the figure 10 represents, similarly to the figure 1 the correction mechanism in the moon phase correction position;
• the figure 11 represents, similarly to the figure 1 , the correction mechanism in date correction position;
• the figure 12 represents the same mechanism, in sectional view along the CC line of the figure 1 , detailing the moon phase correction;
• the figure 13 represents the same mechanism, seen in section along the AA line of the figure 1 , detailing the date correction;
• the figure 14 is a block diagram representing a watch comprising such a clockwork movement, with such a display mechanism, and such a watchmaking mechanism for controlling two distinct displays, as well as such a mechanism for correcting these two displays.

Detailed Description of the Preferred Embodiments

The invention relates to a watchmaking mechanism for controlling a plurality of displays 100. This plurality of displays comprises at least one group comprising at least a first display 10 and a second display 20 distinct.

The mechanism 100 is arranged to be driven according to a reference period TR by a driving wheel 1 of a watch movement 1000.

The invention is described here in the particular and nonlimiting case where the reference period TR is 12 hours. In this particular case, the mechanism 100 oscillates a control at a rate of one oscillation cycle per day, and it comprises two detachable pawls, each arranged to control a separate display, for orders at different times of the day, preferably in a particularly spaced-apart manner: in the particular example illustrated a first command of a first display 10 takes place in the vicinity of midday, and a second command of a second display 20 takes place around midnight.

The invention is illustrated here in a particular, nonlimiting example, with a single group of displays, where the first display is a moon phase display, and the second display is a date display. The mechanism according to the invention is sufficiently versatile to be adapted to many other watch displays.

The mechanism 100 comprises, if necessary, for each group of displays, a gear train 2 multiplier or gearbox, or inverter, arranged to drive according to a control period TC, a control mobile 3. In the illustrated example, the period TC is twice the reference period TR, ie 24 hours.

According to the invention, the mechanism 100 comprises, for each display group, a first control member, in particular a first detachable ratchet 51, for controlling the first display 10, and a second control member, in particular a second detachable ratchet 52, for the control of the second display 20, and disengagement control means of the first control member and the second control member, in particular the first detachable ratchet 51 and the second detachable ratchet 52.

More particularly, these clutch control means which comprise a pivoting control lever 5, and which is arranged to pivot a reciprocating movement, in a limited angular stroke, and which carries the first detachable ratchet 51 and said second detachable ratchet 52.

More particularly, the control wheel 3 is integral with a control cam 4, whose profile determines the control times, and which is arranged to cooperate with a receiving cam 6 that comprises the control lever 5. The profiles of the The control cam 4 and the receiving cam 6 are arranged to control a reciprocating movement, at a limited angular stroke, of the control lever 5, with a complete cycle of oscillation, and to control the disengagement or disengagement. clutch of the first detachable ratchet 51 and second detachable ratchet 52 respectively with the first display 10 and the second display 20.

The cooperation of the control cam 4 and the receiving cam 6 thus switches the control lever 5. During the complete oscillation cycle of the control lever 5, during the control period TC, the first control member, including a first detachable ratchet 51, performs a back and forth movement for the control of the first display and a return to the waiting position, and the second control member, in particular a second detachable ratchet 52, makes a movement of and-to-come for the control of the second display and a return to the waiting position, as visible on the Figures 2 to 6 showing the two control sequences of the two displays. More particularly and as shown in the figures, the control cam 4 is a male cam whose outer profile cooperates with the inner profile of the receiving cam 6 which is a female cam.

In the particular variant, not limiting, illustrated by the figures, the control lever 5 carries a first control member constituted by a first detachable ratchet 51 having a first nose 510 for the control of the first display 10 and movable according to a first limited angular stroke and against first elastic return means 5110. And, similarly, the control lever 5 carries a second control member constituted by a second detachable ratchet 52 having a second nozzle 520 for the control of the second display 20 and movable in a second limited angular stroke and against second elastic return means 5120. The stroke of each pawl is limited, in the variant illustrated, by the cooperation of abutment faces, including oblique faces in the figures, the pawl with a first locking pin 512, which carries the control lever 5, for the first pawl 5 1, a second locking pin 522 for the second pawl; other variants may include a light cooperating with a pin, or the like. The setting in abutment position and the return made by the first elastic return means 5110 or respectively second elastic return means 5120, on an arm 519 of the pawl, make it possible to disengage the one of the pawls which has just fulfilled its function. drive control, to leave the free field to the other ratchet.

The first pawl 51 and the second pawl 52 have no direct connection, even if both are carried by the same control lever 5.

The first 5110 elastic return means, like the second 5120 resilient return means, exert a return torque which is only used for disengagement during the oscillation, and this torque is very far lower, that is to say say with a lower return moment at least to the tenth of the other, the return torque of a first jumper 611 and a second jumper 621 which ensure, respectively, both the maintenance and the jump of the first display 10 and the second display 20. This return torque of the first 5110 elastic return means, as second 5120 elastic return means, is so weak that when the control lever 5, oscillates in the other direction, and when a spout 510 or 520 of a ratchet 51 or 52 touches a counter-tooth of a wheel 11 or pinion 521, this pair of reminder is not enough to oppose it. One can make the analogy with a cycle freewheel device.

In the illustrated example, the first display 10 is a moon phase display, and comprises a moonwheel 11 which carries the usual moon representations, and which is driven by the first pawl 51. The second display 20 of this example is a date display, made by a needle, not shown in the figures, mounted on a shaft 210 coaxial with this moonwheel 11, this shaft 210 is integral with a calendar plate 21 driven by an intermediate date gear 521 qu 'drives the second pawl 52.

As visible on the Figures 2 to 6 , around midnight, the beginning of training of the moon wheel 11 by the first pawl 51 is made possible by the disengagement of the second ratchet 52 of date, as visible in figure 3 , where the control cam 4 is as close as possible to an upper edge 61 of the receiving cam 6. This is the first moon phase jumper 611 that provides the energy needed to finish the jump, in figure 4 , where the second date ratchet 52 has finished disengaging on the tooth of the intermediate date gear 521. When, around noon, in figure 5 , the control cam 4 is as close as possible to a lower edge 62 of the receiving cam 6, the first moon pawl 51 starts to disengage, the second date pawl 52 still has its beak 520 in the rest position between two teeth of the intermediate date gear 521, and its second stop pin 522 prevents it from turning back, the intermediate date gear 521 rotates counterclockwise. The second date ratchet 52 thus pushes the intermediate calendar gear 521, initiating the rotation of the date plate 21 completed by the second jumper 621. figure 6 shows the date drive, just with the toothing top pass. During the oscillation in the other ses for the training of the moon phase, the second date ratchet 52 disengages.

The mechanism 100 has the advantage of continuous operation, the oscillation of the control lever 5 is permanently, and this mechanism is integral with the hour wheel, and is very rigid. It can be advantageously made with identical components for the controls of the two displays: first pawl 51 and second pawl 52 identical to each other, first elastic return means 5110 and second resilient return means 5120 identical to each other, constituted by springs on the example of the figures. In the variant illustrated, the first pawl 51 and the second pawl 52 are arranged on either side of the plane of the control lever 5.

This mechanism 100 is shown here for day-time displays. It can be implemented for other periodicities, including monthly, or other.

This mechanism 100 has the advantage of being able to be coupled with a fast correction mechanism, without having to fear any moment of impossibility of correction, because the disengagement on the control makes it possible to carry out a correction at any time.

The invention also allows the easy positioning of a complication remotely relative to the axis of the movement. In the illustrated example, the eccentric moon phase, combined with a coaxial display of the date, can occupy any free position at the dial of the watch, while remaining very visible, and constitute an easy complication to integrate into an existing movement. This dual control is very compact, and includes only components achievable in a very conventional manner, with a moderate cost.

The invention also relates to a display mechanism 200 comprising a plurality of displays, the plurality of displays comprising at least one group comprising at least a first display 10 and a second display 20 distinct, the first display 10 having a first gear 11, and the second display 20 having a second wheel 12. This display mechanism 200 comprises, for at least one group, such a control mechanism 100, the first detachable ratchet 51 is arranged to drive the first gear 11, and the second detachable ratchet 52 is arranged to drive the second gear 12, the drives of the first gear 11 and the second gear 12 being executed at different times during the control period TC.

This display mechanism 200 also advantageously comprises, for at least one display group, a bidirectional correction mechanism 300, which is arranged to be controlled by the action of a user on a setting means 301, such that a control rod or the like, acting on a correction pinion 310, to rotate it in one direction or the other. This correction mechanism 300 comprises a corrective lever 303 pivoting coaxially with the correction pinion 310, on a shaft 330 of the correction pinion 310. This corrective lever 303 carries, meshing with the correction pinion 310, a first intermediate mobile 311 arranged to drive the first gear 11, and a second intermediate mobile 312 arranged to drive the second gear 12. The correction mechanism 300 comprises at least one elastic member 305, in particular a spring 304, which is arranged to return, in the absence of action of a user on the adjusting means 301, the correction lever 303 in a neutral position in which the first intermediate mobile 311 is disengaged from the first gear 11 and the second intermediate mobile 312 is disengaged from the second gear 12.

According to the invention, this bidirectional correction mechanism 300 comprises at least one or a friction link between the correction lever 303 and the shaft 330 of the correction pinion 310, or a friction connection between the elastic element 305 on the one hand and on the other hand, a first side a first shaft 331 of the first intermediate mobile 311, and a second side a second shaft 332 of the second intermediate mobile 312.

Thanks to the friction, the first intermediate wheel 311 and the second intermediate wheel 312 rotate and move towards or away from their correction chain, according to the direction of rotation printed on the correction lever 303. In fact, the correction mechanism bidirectional 300 comprises a bridge 7, comprising oblongs 71, 72, in which are guided respectively the first shaft 331 of the first intermediate mobile 311, and the second shaft 332 of the second intermediate mobile 312, each intermediate mobile 311, 312, being in position meshing with the first gear 11, respectively the second gear 12, when its shaft 331, 332 is in abutment at the end of the oblong 71, 72 in which it flows. In this abutment position, the friction slides, it is then possible to rotate without limit, and at any time, the mobile intermediate player 311, 312.

The advantage of the return to neutral position of the correction lever 303 in the absence of action on the adjustment means 301 is to limit the friction, which would exist if the player remained in contact with a cog, another advantage is to isolating the control means 301, especially when it is constituted by the control rod of the watch, to avoid undesirable corrections.

This friction connection between the elastic element 305 and the shafts 331 and 332 can be done indirectly, as shown in FIG. figure 7 where the elastic element 305 is a spring 304 which bears on songs of the correction lever 303 so as to trigger a friction of the shafts 331 and 332 on their housing of the latch 303.

The frictional connection between the elastic element 305 and the shafts 331 and 332 can advantageously be made directly, as shown in FIG. figure 1 wherein the correcting lever 303 forms pliers at each of the three shafts 330, 331, and 332, with friction jaws 3030, 3031, 3032, or as shown in the variant of FIG. figure 8 the elastic element 305 is a spring 304 which comprises at its ends pallets bearing raised blocks 306 arranged to rub directly against the edge of the teeth of the first intermediate mobile 311, and the second intermediate mobile 312.

When the user stops his action on the adjustment means 301, the elastic member 305 returns the first intermediate mobile 311 and the second intermediate mobile 312 in the neutral position.

Such a bi-directional correction mechanism 300 is very thin, and in particular is not thicker than the moon phase or date display mechanism that it corrects. It can in particular be made in a total thickness of 1.6 mm.

The invention also relates to a watch movement 1000 comprising such a display mechanism 200 and / or such a watchmaking mechanism 100. This movement 1000 comprises motor means comprising the driving wheel 1, which is arranged to drive the watchmaking mechanism 100. It also comprises a winding and setting control rod, constituting a setting means 301, or other control means such as pusher, or bolt, or the like.

The invention also relates to a watch 2000 comprising such a watch movement 1000, and / or such a display mechanism 200, and / or such a watch mechanism 100.

Claims (12)

A control mechanism (100) for controlling a plurality of clock displays, said plurality of displays having at least one group having at least a first display (10) and a second display (20) separate, said mechanism (100) ) being arranged to be driven according to a reference period by a driving wheel (1) of a watch movement (1000), said mechanism (100) comprising, for each said group of displays, a gear train (2) ) arranged to drive according to a control period a control wheel (3), characterized in that said mechanism (100) comprises, for each said group, a first control member, for controlling said first display (10), and a second control member, for controlling said second display (20), at different times within the control period, and disengagement control means of said first control member, and said second control member. Control mechanism (100) according to claim 1, characterized in that disengagement control means comprise a pivoting control lever (5) and arranged to pivot a reciprocating movement, in a limited angular stroke, and which is carrying said first control member, and said second control member. Control mechanism (100) according to claim 2, characterized in that said control wheel (3) is integral with a control cam (4), whose profile determines the control times, and which is arranged to cooperate with a receiving cam (6) which comprises said control lever (5), the profiles of said control cam (4) and said receiving cam (6) being arranged to control a reciprocating movement, according to a race limited angle, of said control lever (5), with a complete cycle of oscillation, and controlling the disengagement or clutching of said first control member, and said second control member, with said first display (10) and said second display (20). Control mechanism (100) according to claim 3, characterized in that said control cam (4) is a male cam whose outer profile cooperates with the inner profile of said receiving cam (6) which is a female cam. Control mechanism (100) according to one of claims 1 to 4, characterized in that said first control member is a first ratchet disengageable (51) which comprises a first nose (510) for controlling said first display (10) and movable in a first limited angular stroke and against first elastic return means (5110), and in that said second control member is a second detachable ratchet (52) which has a second nose (520) for controlling said second display (20) and movable in a second limited angular stroke and against second elastic return means (5120) . Control mechanism (100) according to claim 5, characterized in that the stroke of said first pawl (51) is limited by the cooperation of stop faces of the pawl with a first locking pin (512) carried by said control latch (5), and in that the stroke of said second pawl (52) is limited by the cooperation of stop faces of the pawl with a second locking pin (522) carried by said control lever (5), the setting stop position and the return made by said first elastic return means (5110) or second elastic return means (5120) respectively, on an arm (519) of a said first pawl (51) or second pawl (52), to ensure the disengagement of the ratchet that has just fulfilled its drive control function, to leave the field free to the other pawl. Control mechanism (100) according to claim 5 or 6, characterized in that said first pawl (51) and said second pawl (52) are identical to each other, in that said first elastic return means (5110) and said second elastic return means (5120) are identical to each other, and in that said first pawl (51) and said second pawl (52) are arranged on either side of the plane of said control lever (5). A display mechanism (200) having a plurality of displays, said plurality of displays having at least one group having at least a first display (10) and a second display (20), said first display (10) comprising a first gear train (11), and said second display (20) comprising a second gear train (12), characterized in that said display mechanism (200) comprises, for at least one said group, a control mechanism (100) according to one of claims 1 to 7, wherein said first detachable ratchet (51) is arranged to drive said first gear (11), and said second detachable ratchet (52) is arranged to drive said second gear train (12), the drives said first gear train (11) and said second gear train (12) being executed at different times during said control period (TC). Display mechanism (200) according to claim 8 and including a said control mechanism (100) according to one of claims 5 to 7, characterized in that said first elastic return means (5110), as said second means of resilient return (5120), exert a return torque which is only used for disengaging during the oscillation, and whose return moment is less than one-tenth of the moment of return of a first jumper (611) and a second jumper (621) which respectively provide both the maintenance and the jump of said first display (10) and said second display (20). Display mechanism (200) according to claim 8 or 9, characterized in that said display mechanism (200) further comprises, for at least one said display group, a bidirectional correction mechanism (300) arranged to be controlled by the action of a user on a setting means (301) acting on a correction pinion (310) and having a corrective lever (303) pivoting coaxially with said correction pinion (310) on a shaft of said correction pinion (310) , and said corrective lever (303) carrying, meshing with said correction pinion (310), a first intermediate mobile (311) arranged to drive said first wheel (11) and a second intermediate wheel (312) arranged to drive said second wheel ( 12), said correction mechanism (300) comprising at least one elastic element (305) arranged to reduce, in the absence of action of a user on said adjusting means (301), said correction lever (303) in one po neutral position in which said first intermediate wheel (311) is disengaged from said first wheel (11) and said second intermediate wheel (312) is disengaged from said second wheel (12), said bidirectional correction mechanism (300) comprising at least, or a frictional connection between said corrective lever (303) and said shaft of said correction pinion (310), or a friction connection between said elastic element (305) on the one hand, and said first intermediate mobile (311) and said second intermediate mobile (312) secondly. A watch movement (1000) comprising a display mechanism (200) according to one of claims 8 to 10, and / or a watchmaking mechanism (100) according to one of claims 1 to 7, said movement (1000) comprising motor means comprising a said driving wheel (1) arranged to drive said clock control mechanism (100). Watch (2000) comprising a clockwork movement (1000) according to claim 11, and / or a display mechanism (200) according to one of claims 8 to 10, and / or a watchmaking mechanism (100) according to a Claims 1 to 7.

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