EP3196710A1 - Timepiece movement comprising an analogue display - Google Patents

Timepiece movement comprising an analogue display Download PDF

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Publication number
EP3196710A1
EP3196710A1 EP16203432.6A EP16203432A EP3196710A1 EP 3196710 A1 EP3196710 A1 EP 3196710A1 EP 16203432 A EP16203432 A EP 16203432A EP 3196710 A1 EP3196710 A1 EP 3196710A1
Authority
EP
European Patent Office
Prior art keywords
indicator
pinion
pins
toothing
movement according
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP16203432.6A
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German (de)
French (fr)
Other versions
EP3196710B1 (en
Inventor
Daniel Gruenig
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ETA SA Manufacture Horlogere Suisse
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ETA SA Manufacture Horlogere Suisse
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Application filed by ETA SA Manufacture Horlogere Suisse filed Critical ETA SA Manufacture Horlogere Suisse
Publication of EP3196710A1 publication Critical patent/EP3196710A1/en
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Publication of EP3196710B1 publication Critical patent/EP3196710B1/en
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Classifications

    • G—PHYSICS
    • G04—HOROLOGY
    • G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
    • G04B31/00—Bearings; Point suspensions or counter-point suspensions; Pivot bearings; Single parts therefor
    • G04B31/02—Shock-damping bearings
    • G—PHYSICS
    • G04—HOROLOGY
    • G04C—ELECTROMECHANICAL CLOCKS OR WATCHES
    • G04C3/00—Electromechanical clocks or watches independent of other time-pieces and in which the movement is maintained by electric means
    • G04C3/16—Electromechanical clocks or watches independent of other time-pieces and in which the movement is maintained by electric means incorporating an electro-dynamic continuously rotating motor
    • G—PHYSICS
    • G04—HOROLOGY
    • G04C—ELECTROMECHANICAL CLOCKS OR WATCHES
    • G04C17/00—Indicating the time optically by electric means
    • G04C17/005—Indicating the time optically by electric means by discs
    • G04C17/0058—Indicating the time optically by electric means by discs with date indication
    • G04C17/0066—Indicating the time optically by electric means by discs with date indication electromagnetically driven, e.g. intermittently
    • G—PHYSICS
    • G04—HOROLOGY
    • G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
    • G04B19/00—Indicating the time by visual means
    • G04B19/24—Clocks or watches with date or week-day indicators, i.e. calendar clocks or watches; Clockwork calendars
    • G04B19/243—Clocks or watches with date or week-day indicators, i.e. calendar clocks or watches; Clockwork calendars characterised by the shape of the date indicator
    • G—PHYSICS
    • G04—HOROLOGY
    • G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
    • G04B19/00—Indicating the time by visual means
    • G04B19/24—Clocks or watches with date or week-day indicators, i.e. calendar clocks or watches; Clockwork calendars
    • G04B19/243—Clocks or watches with date or week-day indicators, i.e. calendar clocks or watches; Clockwork calendars characterised by the shape of the date indicator
    • G04B19/24306—Clocks or watches with date or week-day indicators, i.e. calendar clocks or watches; Clockwork calendars characterised by the shape of the date indicator combination of different shapes, e.g. bands and discs, discs and drums
    • G—PHYSICS
    • G04—HOROLOGY
    • G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
    • G04B19/00—Indicating the time by visual means
    • G04B19/24—Clocks or watches with date or week-day indicators, i.e. calendar clocks or watches; Clockwork calendars
    • G04B19/243—Clocks or watches with date or week-day indicators, i.e. calendar clocks or watches; Clockwork calendars characterised by the shape of the date indicator
    • G04B19/247—Clocks or watches with date or week-day indicators, i.e. calendar clocks or watches; Clockwork calendars characterised by the shape of the date indicator disc-shaped
    • G—PHYSICS
    • G04—HOROLOGY
    • G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
    • G04B19/00—Indicating the time by visual means
    • G04B19/24—Clocks or watches with date or week-day indicators, i.e. calendar clocks or watches; Clockwork calendars
    • G04B19/243—Clocks or watches with date or week-day indicators, i.e. calendar clocks or watches; Clockwork calendars characterised by the shape of the date indicator
    • G04B19/247—Clocks or watches with date or week-day indicators, i.e. calendar clocks or watches; Clockwork calendars characterised by the shape of the date indicator disc-shaped
    • G04B19/253—Driving or releasing mechanisms
    • G—PHYSICS
    • G04—HOROLOGY
    • G04C—ELECTROMECHANICAL CLOCKS OR WATCHES
    • G04C17/00—Indicating the time optically by electric means
    • G—PHYSICS
    • G04—HOROLOGY
    • G04C—ELECTROMECHANICAL CLOCKS OR WATCHES
    • G04C17/00—Indicating the time optically by electric means
    • G04C17/005—Indicating the time optically by electric means by discs
    • G04C17/0058—Indicating the time optically by electric means by discs with date indication

Definitions

  • the invention relates to the field of watch movements having an analog display. It relates in particular to the impact resistance of a drive mechanism of an analog indicator, in particular a disk bearing calendar data and in particular a date ring.
  • the invention relates first of all electromechanical movements provided with an electromagnetic motor as a driving source for the drive mechanism of the analog indicator. However, it can also apply to purely mechanical movements.
  • the invention finds a specific application in an electromechanical movement having two analog indicators driven by a single motor and arranged so that at least one of the two indicators can be actuated to display its function without the other indicator be trained.
  • the pins penetrate without risk of blockage in the hollows of the toothing. To ensure this function, the pins have even been truncated on the side of the axis of rotation. It will be noted that the toothing has depressions with flanks which close towards the bottom of the toothing.
  • the analog display includes a chronograph hand, in particular a minute hand of the timed time interval, associated with a 360 ° circular graduation, and a date display (date) using a date ring, the displayed date appearing conventionally in a window of the dial.
  • first mechanism the driving mechanism of the chronograph hand
  • second mechanism the drive mechanism of the date ring
  • the first mechanism comprises an intermediate wheel driven directly by the rotor of the engine and a chronograph wheel which meshes with the intermediate wheel.
  • the second mechanism also comprises said intermediate wheel and further an auxiliary wheel meshing with this intermediate wheel.
  • the auxiliary wheel is secured to a periodic actuating wheel of a drive wheel of the date ring, the mobile having an actuating finger of the drive wheel.
  • the periodic actuating wheel and the driving wheel together form a Geneva mechanism, known for the periodic drive of a ring / date disc.
  • the finger drives the drive wheel of the date ring, which is rotated over an angular distance corresponding to the passage of a date to the next date in the window of the dial provided. for displaying the date.
  • the Geneva mechanism is therefore characterized by a periodic drive of the drive wheel of the date ring, the periodic actuating wheel meshing with this drive wheel only on an angular sector less than 360 °, while this mobile locks the drive wheel on the complementary angular sector. So, as long as the periodic actuating wheel rotates while it is positioned in the complementary angular sector, the rotational movement of the rotor is not transmitted to the date ring.
  • the document US 6,185,158 uses the Geneva mechanism to allow the engine used for the training of the date to perform an additional function, namely the driving of a chrono hand.
  • the method consists in driving the chronograph hand when said periodic operating wheel is in its non-actuation zone, that is to say in said complementary angular sector, and at the end of the interval. of time timed a reset in reverse to return the periodic actuating mobile to a predefined initial position.
  • the Geneva mechanism or a similar Maltese cross mechanism is relatively complex for training a date ring. They require low tolerances for such a mechanism to be effective and there is a risk of blockage. In addition, they are relatively bulky.
  • a first object of the invention is to propose a watch movement equipped with an analogue display device for information whose value varies periodically or intermittently, and in which the periodic or intermittent drive mechanism of the indicator of this display device is relatively inexpensive, simple to mount and limits the space required in the watch movement, while having a shockproof function and a good positioning of the indicator in the plurality of discrete positions of the display device analog.
  • periodic training is meant training which occurs only periodically, i.e. training takes place periodically during a limited period of time and no training occurs between the limited time intervals.
  • 'intermittent drive' is understood a discontinuous drive which stops and resumes according to the control of the intermittent drive mechanism without this drive necessarily intervenes at regular intervals.
  • a second object of the invention is to provide a watch movement responding to the aforementioned first purpose and of which said drive mechanism allows an effective positioning of the indicator in a plurality of discrete positions without the need for a jumper, in particular by ensuring such positioning. over a certain angular range of a rotating mobile actuating the indicator, so as to allow some tolerance to the mounting of the rotating mobile relative to its initial angular positioning and also to ensure a good positioning of the indicator even in case of not missed during an actuation of the drive mechanism by a stepper motor causing a variation of the angular position of the mobile rotating in its rest positions.
  • a third object of the invention is to provide a watch movement responding to the above-mentioned second purpose and wherein said rotating mobile has at least a certain blind spot for driving the indicator of the aforementioned display device, the anti-shock function and the positioning of the indicator being ensured during a rotation of this rotating mobile in the dead angular zone defined by this dead angle.
  • Such a watch movement makes it possible to fulfill a fourth purpose of the invention of arranging a second analog display, comprising a second indicator kinematically linked to said drive mechanism, so that the second indicator is driven by the drive mechanism for indicate a second piece of information while the rotating wheel remains in the dead angular zone.
  • this display device analog device comprising an indicator of this information provided with a toothing and a periodic or intermittent drive mechanism of this indicator, this mechanism comprising a rotating mobile whose pinion, in meshing relation with the toothing of the indicator, is formed two pins which are diametrically opposed relative to the axis of rotation of the pinion, these two pins being configured to penetrate alternately into successive recesses of the toothing and to form a self-locking system in the event of shocks to the watch movement at least when the pinion is in any of the two tangential positions where the two pins are substantially oriented tangentially to the toothing.
  • Each of the two pins has, in a general plane of the toothing perpendicular to the axis of rotation of the rotating mobile, a transverse profile whose first outer portion is substantially circular arc centered on the axis of rotation of the rotating mobile.
  • the two pins of the pinion are configured relative to the toothing of the indicator so that there is a dead angle ( ⁇ ) for the driving of this indicator by the pinion in at least one direction of rotation from each of the two positions tangential of the pinion, the arc of the transverse profile of the two pins extending over an angular distance substantially equal to or greater than the dead angle.
  • the circular arc of the transverse profile of the two pins extends over an angular distance ( ⁇ ) of between 3/2 multiplied by the abovementioned dead angle and substantially twice this dead angle (3 ⁇ / 2 ⁇ ⁇ ⁇ 2 ⁇ ).
  • This watch movement 2 comprises a first display formed by a date ring 4 comprising an internal toothing 5, this ring being driven periodically (normally once a day) by a drive mechanism 8 which comprises a rotating wheel 10 whose pinion 12 meshes with the toothing 5.
  • This drive mechanism is actuated by a drive source which is formed by a bidirectional electric motor 16 controlled by an electronic unit, in particular of the step-by-step type.
  • the pinion 12 is formed of two pins 22 and 23 which, during a driving the ring 4, penetrate alternately into successive recesses 7 of the toothing 5.
  • the pinion pinion 12 is remarkable in that it forms with the toothing 5, in the event of shocks to the watch movement, a system self-locking for the date ring at least when the pinion is in any of two tangential positions where the two pins are substantially oriented tangentially to the circular toothing 5 (parallel to the direction T).
  • a positioning jumper 14 is provided. This jumper is arranged so that it fits stably between two adjacent teeth of the toothing in each of the plurality of distinct positions of the ring 4. This jumper is preferably dimensioned to ensure accurate positioning of the ring 4, given the large clearance between the two pins 22, 23 and the toothing 5 and also the relatively high dead angle ⁇ for the pinion 12 during its rotation from its two tangential positions.
  • the jumper is not provided here for shockproof function so that the elastic constant may be less than in conventional devices.
  • the watch movement 2 further comprises a second indicator 18 kinematically connected to the driving mechanism 8 of the first indicator 4, this second display being arranged so that the second indicator 18 can be driven by this drive mechanism to indicate a second information. , especially in relation to a timed interval of time, while the rotating wheel 10 remains in one or the other of two dead angular zones for the driving of the first indicator.
  • the two pins of the pinion 12 are configured with respect to the toothing 5 of the date ring so that there is a dead angle ⁇ for the driving of this indicator by this pinion in at least one direction of rotation from each of the two tangential positions of the pinion, the rotating wheel thus not causing the ring of dates in two dead angular zones defined in an angular reference linked to the watch movement and centered on the axis of rotation A10 of the rotating wheel, these two dead angular zones comprising minus the dead angle indicated since respectively the two tangential positions of the pinion.
  • the second analog display and its drive mechanism which here consists of a part of the mobiles of the driving mechanism 8 are arranged in a manner that the second indicator 18 can rotate at least 360 ° while the pinion is rotated within the dead angle ⁇ from any of its two tangential positions.
  • the indicator 18 is activated, a periodic reset or reset of this indicator is provided as long as the pinion remains angularly in a dead angular zone. It is thus possible to independently display two pieces of information with a single drive mechanism and in particular a single electric motor 16.
  • the watch movement 2 has several advantages, particularly in relation to the training of the two indicators providing independent information (date and time interval timed) by means of a single driving source and with the anti-shock function obtained by a relatively simple, inexpensive and easy to mount in the watch movement.
  • this watch movement has certain disadvantages.
  • the pins are relatively small. There is therefore a real risk that they are damaged during an impact suffered by the watch movement, in particular that they deform durably by folding under the force exerted by the toothing on these pins during some shocks. It is possible to increase the cross section of the pins a little, but then the dead angular areas are reduced. It is also possible to take a known toothing with recesses having parallel flanks, as shown in FIG.
  • FIG. 3 To the Figure 3 is shown a variant of the watch movement 2 in which various parameters have been improved, starting from a configuration similar to that known from the prior art.
  • Only the pinion pin 12A of the drive mechanism of the watch movement 2A has been shown, the other parts being identical to those of the watch movement 2.
  • This pinion 12A comprises two pins 24 and 25 of cylindrical shape with a diameter D.
  • the troughs 7A of the teeth 5A of the date ring 4A have a substantially rectangular profile and therefore flanks (side walls) parallel.
  • the width L of the hollows is approximately equal to the width of the teeth at half height.
  • the diameter D of the pins, so as to ensure sufficient mechanical strength, is greater than half the width L of the recesses 7A.
  • the pins have been arranged so as to leave, in the two tangential positions mentioned above, a relatively small clearance between these and the two teeth defining the outer flanks 28 and 29 of the two respective recesses opposite the two pins, so that the date ring has a relatively small angular play when the pinion is in one or other of the two tangential positions.
  • the pinion is in one of its two tangential positions in the rest periods where neither the date ring nor the second indicator are driven. These rest positions are preferred because they provide the best protection against shock. It will be noted that as soon as it deviates from it, the locking torque operated by the pinion decreases. Finally, it should be noted that the preferred rest positions are not always those that occur for a variety of reasons, the first being that the pinion 12A can be initially mounted with angular positioning having some variation, and the second that the the motor may miss some steps so that the angular position of the pinion is not precisely known. Therefore, even when the drive mechanism is inactive in periods of rest, the positioning jumper provided in the prior art is necessary to overcome this problem. However, the invention resolves these problems effectively by proposing the solution which will be explained below.
  • the pinion 32 comprises two pins 34 and 36 which each have, in a general plane of the toothing 5A perpendicular to the axis of rotation A10 of the rotating wheel comprising the pinion 32, a transverse profile of which a first outer portion 38 is substantially arcuate. circle centered on the axis of rotation.
  • the rear portion 40 of each pin is rounded and substantially corresponds to the portion back of the pins 24 and 25 of the Figure 3 .
  • a circle having the diameter of the pins 24 and 25 is inscribed inside each pin 36, 38.
  • These pins 36 and 38 are symmetrical relative to a plane comprising the axis of rotation A10. so as to exhibit the same behavior regardless of the direction of rotation of the pinion 32.
  • the tangential length T of these pins, perpendicular to said plane of symmetry, is greater than the diameter D of the pins 24, 25 and the radial dimension R of pins 36, 38.
  • the outer portion in a circular arc advantageously extends over the entire tangential length. Note that in order to drive the ring 4A, the tangential length T is less than the width L of the recesses 7A.
  • the dead angle is substantially equal to that involved in the realization of the Figure 3 .
  • the outer arc of the transverse profile of the two pins extends over an angular distance ⁇ which is, in the example shown, substantially equal to the dead angle.
  • the angular distance ⁇ is greater than this dead angle.
  • the pinion and the toothing are arranged in such a way that the calendar indicator exhibits, when the rotating wheel rotates over the whole of any one of the two dead angular zones, an angular clearance which remains lower or substantially equal to forty microns (40 microns).
  • the pins are more massive than in the case of the Figure 3 . They are therefore stronger and resistant to shocks. Then, the dead angle and thus the dead angular zone can remain significant, especially as large as for an embodiment with conventional cylindrical pins.
  • the anti-shock function is greatly improved because, in the event of shocks, the points of application of the strength of the date ring on the pins remain on a tangent intercepting the axis of rotation A10 for the entire angular distance of rotation. constant play. Thus, not only for its two tangential positions but throughout this angular distance, no torque is exerted on the pinion 32 in the event of external shocks generating an angular acceleration of the date ring.
  • each hollow 7B, respectively 7C of the toothing 5B, 5C has, at the ends 48 of two adjacent teeth 6B, 6C, an opening which has a dimension L1 less than the width of this hollow at its region of contact with the two pins, during a training of the calendar indicator by the rotating mobile comprising these two pins, and in particular less than the maximum width L2 in the bottom of teeth.
  • the aforementioned contact region extends for a certain distance along the lateral walls 50, 62 respectively of the teeth, beyond the tangent 42 to the circular toothing towards the bottom of the toothing.
  • each pin 46, respectively 56 has a radial dimension R relative to the axis of rotation A10 of the rotating wheel and a tangential dimension T, perpendicular to the radial dimension, the value of this tangential dimension being substantially equal to twice that of radial dimension or higher.
  • the dimension L1 is greater than the radial dimension R and the dimension L2 is greater than the tangential dimension T, otherwise the meshing of the pinion gear with the toothing of the calendar indicator can not be functional since it will block quickly.
  • the lateral profile 50 of the teeth 6B, respectively of the lateral edges of the recesses 7B is substantially rectilinear from the tangent line 42 to the bottom of the toothing.
  • Each hollow 7B is flared in the direction of the bottom of teeth and therefore each tooth 6B is flared towards its end region 48.
  • the profile of the teeth substantially follows a circular arc centered on the axis A10.
  • the pins 46 also have a flared shape radially away from the axis of rotation A10. They have a large opening so as to considerably increase the angular distance ⁇ of the arc defined by the external part of the tooth.
  • each of the two pins 56 has a profile also in an arc so as to increase the tangential dimension T of these pins without increasing their radial dimension R.
  • This increases the angular opening pins and thus the angular distance defined by the outer circular arc 38.
  • the teeth 6C have a corresponding profile which is arranged to obtain a larger blind spot while having a substantially constant low clearance on the dead angular distance resulting from this blind spot.
  • Each tooth has a foot 58 with side walls 62 substantially parallel. Then, the width of the teeth increases with a circular profile section 64 centered on the axis A10, the radius of this circular profile being provided a little lower than that defined by the inner circular portion of the pins.
  • the teeth have in the end region of their end a profile section 66 which curves towards the axis A10, so as to enlarge the opening between two adjacent teeth at their ends.
  • the length of the section 66 can here be relatively large and extend beyond the tangent 42 without impairing the low play on the large dead angular distance which has a value between 35 ° and 40 ° in the example shown.
  • each calendar indicator 4A, 4B and 4C is a first information.
  • the analog display is a first analog display and the calendar indicator is a first indicator.
  • the watch movement 44, respectively 54 of these two embodiments further comprises a second analog display (not shown but similar to that of the Figures 1 & 2 ) comprising a second indicator which is kinematically linked to the driving mechanism of the first indicator.
  • This second display is arranged so that the second indicator is driven by the drive mechanism to indicate a second information independent of the first information while the rotating mobile remains in one or the other of the two dead angular zones defined by the dead angle ⁇ from the two possible tangential positions of the pinion gear.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Electromechanical Clocks (AREA)

Abstract

Le mouvement horloger (44) est équipé d'un dispositif d'affichage analogique d'une information dont la valeur varie périodiquement ou par intermittence, ce dispositif d'affichage analogique comprenant un indicateur (4B) de ladite information muni d'une denture (5B) et un mécanisme d'entraînement périodique ou intermittent de cet indicateur, ce mécanisme comprenant un mobile tournant dont le pignon, en relation d'engrènement avec la denture, est formé de deux goupilles (46) qui sont diamétralement opposées relativement à l'axe de rotation (A10) du mobile tournant, ces deux goupilles étant configurées pour pénétrer alternativement dans des creux successifs (7B) de la denture et pour former un système autobloquant en cas de chocs subis par le mouvement horloger. Chacune des deux goupilles présente, dans un plan général de la denture perpendiculaire à l'axe de rotation du mobile tournant, un profil transversal dont une première partie extérieure (38) est sensiblement en arc de cercle centré sur l'axe de rotation.The watch movement (44) is equipped with an analogue display device for information whose value varies periodically or intermittently, this analog display device comprising an indicator (4B) of said information provided with a set of teeth ( 5B) and a mechanism for periodic or intermittent drive of this indicator, this mechanism comprising a rotating mobile whose pinion, in meshing relationship with the toothing, is formed of two pins (46) which are diametrically opposed relative to the axis of rotation (A10) of the mobile rotating, these two pins being configured to penetrate alternately in successive recesses (7B) of the toothing and to form a self-locking system in case of shocks to the watch movement. Each of the two pins has, in a general plane of the toothing perpendicular to the axis of rotation of the rotating mobile, a transverse profile of which a first outer portion (38) is substantially in a circular arc centered on the axis of rotation.

Description

Domaine de l'inventionField of the invention

L'invention concerne le domaine des mouvements horlogers ayant un affichage analogique. Elle concerne en particulier la résistance aux chocs d'un mécanisme d'entrainement d'un indicateur analogique, notamment d'un disque portant des données de calendrier et en particulier d'un anneau des quantièmes. L'invention concerne en premier lieu des mouvements électromécaniques munis d'un moteur électromagnétique comme source motrice pour le mécanisme d'entrainement de l'indicateur analogique. Cependant, elle peut également s'appliquer à des mouvements purement mécaniques.The invention relates to the field of watch movements having an analog display. It relates in particular to the impact resistance of a drive mechanism of an analog indicator, in particular a disk bearing calendar data and in particular a date ring. The invention relates first of all electromechanical movements provided with an electromagnetic motor as a driving source for the drive mechanism of the analog indicator. However, it can also apply to purely mechanical movements.

En particulier l'invention trouve une application spécifique dans un mouvement électromécanique ayant deux indicateurs analogiques entraînés par un seul et même moteur et agencés de manière qu'au moins un des deux indicateurs puisse être actionné pour afficher sa fonction sans que l'autre indicateur ne soit entraîné.In particular the invention finds a specific application in an electromechanical movement having two analog indicators driven by a single motor and arranged so that at least one of the two indicators can be actuated to display its function without the other indicator be trained.

Arrière-plan de l'inventionBackground of the invention

Dans la plupart des dispositifs d'affichage du quantième connus, le positionnement de l'anneau des quantièmes dans les positions d'affichage successives est généralement assuré par un sautoir associé à la denture de cet anneau. Les systèmes d'entrainement classiques n'assurent pas une retenue suffisante de l'anneau des quantièmes en cas de chocs et donc généralement aucun blocage. Ainsi, c'est le sautoir qui doit assurer cette fonction de blocage ; raison pour laquelle il présente alors une constante élastique élevée. On notera que pour vaincre la force élastique du sautoir, il est nécessaire de fournir un couple élevé au niveau de l'anneau des quantièmes.In most known date display devices, the positioning of the date ring in the successive display positions is generally provided by a jumper associated with the teeth of this ring. Conventional drive systems do not provide sufficient retention of the date ring in case of shocks and therefore generally no blockage. Thus, it is the jumper that must provide this blocking function; This is why it has a high elastic constant. Note that to overcome the elastic force of the jumper, it it is necessary to provide a high torque at the date ring.

Cependant, pour remédier au problème du sautoir de positionnement ayant en outre une fonction antichoc, il a été proposé dans la demande de brevet EP 2 927 756 un mécanisme d'entrainement de l'anneau des quantièmes comprenant un système à transmission irréversible capable d'assurer la fonction antichoc alors que le positionnement de l'anneau des quantièmes continue d'être assuré par un sautoir, lequel présente alors une constante élastique moindre. Ce document propose notamment un mode de réalisation avec un pignon formé de deux goupilles diamétralement opposées relativement à l'axe de rotation de ce pignon. Dans ce document, on a prévu un jeu important entre les goupilles et la denture de l'anneau des quantièmes pour assurer un entrainement sans perturbation, en particulier sans blocage. Le sautoir de positionnement maintenant ou ramenant l'anneau dans une position où l'axe de rotation du pignon intercepte sensiblement l'axe central de la dent insérée entre les goupilles, les goupilles pénètrent sans risque de blocage dans les creux de la denture. Pour assurer cette fonction, les goupilles ont même été tronquées du côté de l'axe de rotation. On remarquera que la denture présente des creux avec des flancs qui se referment en direction du fond de denture.However, to overcome the problem of the positioning jumper further having a shockproof function, it has been proposed in the patent application EP 2 927 756 a mechanism for driving the date ring comprising an irreversible transmission system capable of providing the anti-shock function whereas the positioning of the date ring continues to be ensured by a jumper, which then has a lower elastic constant . This document proposes in particular an embodiment with a pinion formed of two pins diametrically opposite relative to the axis of rotation of this pinion. In this document, there is provided a large clearance between the pins and the teeth of the date ring to ensure training without disturbance, especially without blocking. Locating the jumper now or bringing the ring in a position where the axis of rotation of the pinion substantially intercept the central axis of the tooth inserted between the pins, the pins penetrate without risk of blockage in the hollows of the toothing. To ensure this function, the pins have even been truncated on the side of the axis of rotation. It will be noted that the toothing has depressions with flanks which close towards the bottom of the toothing.

Un problème avec le mode de réalisation représenté aux figures 3A et 3B du document EP 2 927 756 provient du fait que les goupilles ont un faible diamètre et en plus elles sont tronquées, de sorte qu'elles sont fragiles et qu'elles risquent d'être endommagées, en particulier d'être pliées en cas de chocs. Ensuite, cette réalisation nécessite un sautoir de positionnement, ce qui augmente l'encombrement du dispositif d'affichage du quantième et également le coût du mouvement horloger.A problem with the embodiment shown in Figures 3A and 3B of the document EP 2 927 756 It is due to the fact that the pins have a small diameter and in addition they are truncated, so that they are fragile and that they risk being damaged, in particular being folded in case of shocks. Then, this embodiment requires a positioning jumper, which increases the size of the date display device and also the cost of the watch movement.

Par ailleurs, on connaît du document US 6,185,158 une montre électronique équipée d'un affichage analogique de plusieurs paramètres temporelles, en particulier de l'heure, de la minute et de la seconde au moyen de trois aiguilles coaxiales situées au centre du cadran de la montre. En outre, l'affichage analogique comprend une aiguille de chrono, en particulier une aiguille des minutes de l'intervalle de temps chronométré, associée à une graduation circulaire sur 360°, ainsi qu'un affichage du quantième (date) à l'aide d'un anneau des quantièmes, le quantième affiché apparaissant classiquement dans une fenêtre du cadran. Ce document propose d'actionner le mécanisme d'entraînement de l'aiguille de chrono (ci-après premier mécanisme) et le mécanisme d'entraînement de l'anneau des quantièmes (ci-après second mécanisme) par un seul et même moteur électromécanique.Moreover, we know of the document US 6,185,158 an electronic watch equipped with an analog display of several temporal parameters, in particular the hour, minute and second by means of three coaxial hands located in the center of the watch face. In addition, the analog display includes a chronograph hand, in particular a minute hand of the timed time interval, associated with a 360 ° circular graduation, and a date display (date) using a date ring, the displayed date appearing conventionally in a window of the dial. This document proposes to actuate the driving mechanism of the chronograph hand (hereinafter first mechanism) and the drive mechanism of the date ring (hereinafter second mechanism) by a single electromechanical motor. .

Le premier mécanisme comprend une roue intermédiaire entraînée directement par le rotor du moteur et une roue de chrono qui engrène avec la roue intermédiaire. Le second mécanisme comprend également ladite roue intermédiaire et en outre une roue auxiliaire engrenant avec cette roue intermédiaire. La roue auxiliaire est solidaire d'un mobile d'actionnement périodique d'une roue d'entraînement de l'anneau de quantième, ce mobile présentant un doigt d'actionnement de cette roue d'entraînement. Le mobile d'actionnement périodique et la roue d'entraînement forment ensemble un mécanisme de Genève, connu pour l'entraînement périodique d'un anneau / disque de quantième. A chaque tour du mobile d'actionnement périodique, le doigt entraîne la roue d'entraînement de l'anneau des quantièmes, lequel est entraîné en rotation sur une distance angulaire correspondant au passage d'un quantième au quantième suivant dans la fenêtre du cadran prévue pour l'affichage du quantième.The first mechanism comprises an intermediate wheel driven directly by the rotor of the engine and a chronograph wheel which meshes with the intermediate wheel. The second mechanism also comprises said intermediate wheel and further an auxiliary wheel meshing with this intermediate wheel. The auxiliary wheel is secured to a periodic actuating wheel of a drive wheel of the date ring, the mobile having an actuating finger of the drive wheel. The periodic actuating wheel and the driving wheel together form a Geneva mechanism, known for the periodic drive of a ring / date disc. At each revolution of the periodic actuation wheel, the finger drives the drive wheel of the date ring, which is rotated over an angular distance corresponding to the passage of a date to the next date in the window of the dial provided. for displaying the date.

Le mécanisme de Genève est donc caractérisé par un entraînement périodique de la roue d'entraînement de l'anneau des quantièmes, le mobile d'actionnement périodique engrenant avec cette roue d'entraînement seulement sur un secteur angulaire inférieur à 360°, alors que ce mobile bloque la roue d'entraînement sur le secteur angulaire complémentaire. Ainsi, tant que le mobile d'actionnement périodique tourne alors qu'il se trouve positionné dans le secteur angulaire complémentaire, le mouvement de rotation du rotor n'est pas transmis à l'anneau des quantièmes.The Geneva mechanism is therefore characterized by a periodic drive of the drive wheel of the date ring, the periodic actuating wheel meshing with this drive wheel only on an angular sector less than 360 °, while this mobile locks the drive wheel on the complementary angular sector. So, as long as the periodic actuating wheel rotates while it is positioned in the complementary angular sector, the rotational movement of the rotor is not transmitted to the date ring.

Le document US 6,185,158 utilise le mécanisme de Genève pour permettre au moteur utilisé pour l'entraînement du quantième d'exercer une fonction supplémentaire, à savoir l'entraînement d'une aiguille chrono. En résumé, la méthode consiste à entraîner l'aiguille chrono lorsque ledit mobile d'actionnement périodique est dans sa zone de non actionnement, c'est-à-dire dans ledit secteur angulaire complémentaire, et de faire à la fin de l'intervalle de temps chronométré un reset en marche arrière pour ramener le mobile d'actionnement périodique dans une position initiale prédéfinie.The document US 6,185,158 uses the Geneva mechanism to allow the engine used for the training of the date to perform an additional function, namely the driving of a chrono hand. In summary, the method consists in driving the chronograph hand when said periodic operating wheel is in its non-actuation zone, that is to say in said complementary angular sector, and at the end of the interval. of time timed a reset in reverse to return the periodic actuating mobile to a predefined initial position.

Le mécanisme de Genève ou un mécanisme à croix de Malte similaire sont relativement complexes pour un entrainement d'un anneau des quantièmes. Ils nécessitent de faibles tolérances pour qu'un tel mécanisme soit efficace et il existe un risque de blocage. De plus, ils sont relativement encombrants.The Geneva mechanism or a similar Maltese cross mechanism is relatively complex for training a date ring. They require low tolerances for such a mechanism to be effective and there is a risk of blockage. In addition, they are relatively bulky.

Résumé de l'inventionSummary of the invention

Un premier but de l'invention est de proposer un mouvement horloger équipé d'un dispositif d'affichage analogique d'une information dont la valeur varie périodiquement ou par intermittence, et dans lequel le mécanisme d'entraînement périodique ou intermittent de l'indicateur de ce dispositif d'affichage est relativement peu onéreux, simple à monter et limite l'encombrement nécessaire dans le mouvement horloger, tout en ayant une fonction antichoc et un bon positionnement de l'indicateur dans la pluralité de positions discrètes du dispositif d'affichage analogique.A first object of the invention is to propose a watch movement equipped with an analogue display device for information whose value varies periodically or intermittently, and in which the periodic or intermittent drive mechanism of the indicator of this display device is relatively inexpensive, simple to mount and limits the space required in the watch movement, while having a shockproof function and a good positioning of the indicator in the plurality of discrete positions of the display device analog.

Par 'entraînement périodique' on comprend un entraînement qui intervient seulement périodiquement, c'est-à-dire que l'entraînement a lieu périodiquement durant un intervalle de temps limité et qu'aucun entraînement n'intervient entre les intervalles de temps limités. De même, par 'entraînement intermittent' on comprend un entraînement discontinu qui s'arrête et reprend en fonction de la commande du mécanisme d'entraînement intermittent sans que cet entraînement n'intervienne nécessairement à intervalles réguliers.By "periodic training" is meant training which occurs only periodically, i.e. training takes place periodically during a limited period of time and no training occurs between the limited time intervals. Similarly, by 'intermittent drive' is understood a discontinuous drive which stops and resumes according to the control of the intermittent drive mechanism without this drive necessarily intervenes at regular intervals.

Un deuxième but de l'invention est de fournir un mouvement horloger répondant au premier but susmentionné et dont ledit mécanisme d'entraînement permet un positionnement efficace de l'indicateur dans une pluralité de positions discrètes sans nécessiter de sautoir, notamment en assurant un tel positionnement sur une certaine plage angulaire d'un mobile tournant actionnant l'indicateur, de manière à permettre une certaine tolérance au montage de ce mobile tournant relativement à son positionnement angulaire initial et également à assurer un bon positionnement de l'indicateur même en cas de pas manqués lors d'un actionnement du mécanisme d'entrainement par un moteur pas-à-pas engendrant une variation de la position angulaire du mobile tournant dans ses positions de repos.A second object of the invention is to provide a watch movement responding to the aforementioned first purpose and of which said drive mechanism allows an effective positioning of the indicator in a plurality of discrete positions without the need for a jumper, in particular by ensuring such positioning. over a certain angular range of a rotating mobile actuating the indicator, so as to allow some tolerance to the mounting of the rotating mobile relative to its initial angular positioning and also to ensure a good positioning of the indicator even in case of not missed during an actuation of the drive mechanism by a stepper motor causing a variation of the angular position of the mobile rotating in its rest positions.

Un troisième but de l'invention est de fournir un mouvement horloger répondant au deuxième but susmentionné et dans lequel ledit mobile tournant présente au moins un certain angle mort pour l'entrainement de l'indicateur du dispositif d'affichage mentionné, la fonction antichoc et le positionnement de l'indicateur étant assurés lors d'une rotation de ce mobile tournant dans la zone angulaire morte définie par cet angle mort. Un tel mouvement horloger permet de répondre à un quatrième but de l'invention consistant à agencer un deuxième affichage analogique, comprenant un deuxième indicateur lié cinématiquement audit mécanisme d'entrainement, de manière que le deuxième indicateur est entraîné par le mécanisme d'entrainement pour indiquer une deuxième information alors que le mobile tournant reste dans la zone angulaire morte.A third object of the invention is to provide a watch movement responding to the above-mentioned second purpose and wherein said rotating mobile has at least a certain blind spot for driving the indicator of the aforementioned display device, the anti-shock function and the positioning of the indicator being ensured during a rotation of this rotating mobile in the dead angular zone defined by this dead angle. Such a watch movement makes it possible to fulfill a fourth purpose of the invention of arranging a second analog display, comprising a second indicator kinematically linked to said drive mechanism, so that the second indicator is driven by the drive mechanism for indicate a second piece of information while the rotating wheel remains in the dead angular zone.

Ces divers buts sont atteints par le mouvement horloger de l'invention qui est équipé d'un dispositif d'affichage analogique d'une information dont la valeur varie périodiquement ou par intermittence, ce dispositif d'affichage analogique comprenant un indicateur de cette information muni d'une denture et un mécanisme d'entraînement périodique ou intermittent de cet indicateur, ce mécanisme comprenant un mobile tournant dont le pignon, en relation d'engrènement avec la denture de l'indicateur, est formé de deux goupilles qui sont diamétralement opposées relativement à l'axe de rotation de ce pignon, ces deux goupilles étant configurées pour pénétrer alternativement dans des creux successifs de la denture et pour former un système autobloquant en cas de chocs subis par le mouvement horloger au moins lorsque le pignon est dans une quelconque des deux positions tangentielles où les deux goupilles sont sensiblement orientées tangentiellement à la denture. Chacune des deux goupilles présente, dans un plan général de la denture perpendiculaire à l'axe de rotation du mobile tournant, un profil transversal dont une première partie extérieure est sensiblement en arc de cercle centré sur l'axe de rotation du mobile tournant. Les deux goupilles du pignon sont configurées par rapport à la denture de l'indicateur de manière qu'il existe un angle mort (α) pour l'entrainement de cet indicateur par ce pignon dans au moins un sens de rotation depuis chacune des deux positions tangentielles du pignon, l'arc de cercle du profil transversal des deux goupilles s'étendant sur une distance angulaire sensiblement égale ou supérieure à l'angle mort.These various aims are achieved by the watch movement of the invention which is equipped with an analogue display device for information whose value varies periodically or intermittently, this display device analog device comprising an indicator of this information provided with a toothing and a periodic or intermittent drive mechanism of this indicator, this mechanism comprising a rotating mobile whose pinion, in meshing relation with the toothing of the indicator, is formed two pins which are diametrically opposed relative to the axis of rotation of the pinion, these two pins being configured to penetrate alternately into successive recesses of the toothing and to form a self-locking system in the event of shocks to the watch movement at least when the pinion is in any of the two tangential positions where the two pins are substantially oriented tangentially to the toothing. Each of the two pins has, in a general plane of the toothing perpendicular to the axis of rotation of the rotating mobile, a transverse profile whose first outer portion is substantially circular arc centered on the axis of rotation of the rotating mobile. The two pins of the pinion are configured relative to the toothing of the indicator so that there is a dead angle (α) for the driving of this indicator by the pinion in at least one direction of rotation from each of the two positions tangential of the pinion, the arc of the transverse profile of the two pins extending over an angular distance substantially equal to or greater than the dead angle.

Dans une première variante, l'angle mort est sensiblement égal ou supérieur à quinze degrés (15°= < α) et dans une deuxième variante avantageuse sensiblement égal ou supérieur à vingt-cinq degrés (25° = < α).In a first variant, the dead angle is substantially equal to or greater than fifteen degrees (15 ° = <α) and in a second advantageous variant substantially equal to or greater than twenty-five degrees (25 ° = <α).

Dans une variante préférée, l'arc de cercle du profil transversal des deux goupilles s'étend sur une distance angulaire (β) comprise entre 3/2 multiplié par l'angle mort susmentionné et sensiblement deux fois cet angle mort (3α/2 < β < 2α).In a preferred variant, the circular arc of the transverse profile of the two pins extends over an angular distance (β) of between 3/2 multiplied by the abovementioned dead angle and substantially twice this dead angle (3α / 2 < β <2α).

Brève description des dessinsBrief description of the drawings

L'invention sera décrite ci-après à l'aide de dessins annexés, donnés à titre d'exemples nullement limitatifs, dans lesquels :

  • La Figure 1 montre un mouvement électromécanique, du type d'un mode de réalisation principal de la présente invention, dans lequel est implémenté un pignon à goupilles connu pour l'actionnement d'un disque des quantièmes;
  • La Figure 2 est une vue partielle agrandie de la Figure 1 ;
  • La Figure 3 montre une variante du mouvement de la Figure 1 sur la base duquel la problématique à la base de la présente invention est exposée plus en détails;
  • Les Figures 4A et 4B sont des vues partielles d'un premier mode de réalisation de l'invention;
  • La Figure 5 est un vue partielle de dessus d'un deuxième mode de réalisation de l'invention; et
  • La Figure 6 est une variante sophistiquée du deuxième mode de réalisation.
The invention will be described hereinafter with the aid of annexed drawings, given by way of non-limiting examples, in which:
  • The Figure 1 shows an electromechanical movement, of the type of a main embodiment of the present invention, in which is implemented a pinion pinion known for the actuation of a date disc;
  • The Figure 2 is an enlarged partial view of the Figure 1 ;
  • The Figure 3 shows a variant of the movement of the Figure 1 on the basis of which the problem underlying the present invention is explained in more detail;
  • The Figures 4A and 4B are partial views of a first embodiment of the invention;
  • The Figure 5 is a partial view from above of a second embodiment of the invention; and
  • The Figure 6 is a sophisticated variant of the second embodiment.

Description détaillée de l'inventionDetailed description of the invention

En référence aux Figures 1 et 2, on décrira ci-après un mouvement électromécanique 2 du type d'un mode de réalisation principal de l'invention avec un entrainement d'un anneau des quantièmes par un pignon à goupilles connu en soit. Ce mouvement horloger 2 comprend un premier affichage formé par un anneau des quantièmes 4 comprenant une denture intérieure 5, cet anneau étant entraîné périodiquement (normalement une fois par jour) par un mécanisme d'entrainement 8 qui comprend un mobile tournant 10 dont le pignon 12 engrène avec la denture 5. Ce mécanisme d'entrainement est actionné par une source motrice qui est formée par un moteur électrique bidirectionnel 16 commandé par une unité électronique, en particulier du type pas-à-pas. Le pignon 12 est formé de deux goupilles 22 et 23 qui, lors d'un entrainement de l'anneau 4, pénètrent alternativement dans des creux successifs 7 de la denture 5. Le pignon à goupilles 12 est remarquable par le fait qu'il forme avec la denture 5, en cas de chocs subis par le mouvement horloger, un système autobloquant pour l'anneau des quantièmes au moins lorsque le pignon est dans une quelconque des deux positions tangentielles où les deux goupilles sont sensiblement orientées tangentiellement à la denture circulaire 5 (parallèlement à la direction T).With reference to Figures 1 and 2 , hereinafter will be described an electromechanical movement 2 of the type of a main embodiment of the invention with a drive of a date ring by a pinion pinion known in itself. This watch movement 2 comprises a first display formed by a date ring 4 comprising an internal toothing 5, this ring being driven periodically (normally once a day) by a drive mechanism 8 which comprises a rotating wheel 10 whose pinion 12 meshes with the toothing 5. This drive mechanism is actuated by a drive source which is formed by a bidirectional electric motor 16 controlled by an electronic unit, in particular of the step-by-step type. The pinion 12 is formed of two pins 22 and 23 which, during a driving the ring 4, penetrate alternately into successive recesses 7 of the toothing 5. The pinion pinion 12 is remarkable in that it forms with the toothing 5, in the event of shocks to the watch movement, a system self-locking for the date ring at least when the pinion is in any of two tangential positions where the two pins are substantially oriented tangentially to the circular toothing 5 (parallel to the direction T).

Pour maintenir l'anneau des quantièmes dans une pluralité de positions distinctes dans lesquelles il demeure stationnaire durant des périodes successives d'affichage du quantième, un sautoir de positionnement 14 est prévu. Ce sautoir est agencé de manière qu'il s'insère de manière stable entre deux dents adjacentes de la denture dans chacune de la pluralité de positions distinctes de l'anneau 4. Ce sautoir est de préférence dimensionné pour assurer un positionnement précis de l'anneau 4, étant donné le jeu important entre les deux goupilles 22, 23 et la denture 5 et également l'angle mort α relativement important pour le pignon 12 lors de sa rotation depuis ses deux positions tangentielles. Toutefois, le sautoir n'est pas prévu ici pour une fonction antichoc de sorte que la constante élastique peut être moindre que dans des dispositifs classiques.To maintain the date ring in a plurality of distinct positions in which it remains stationary during successive periods of date display, a positioning jumper 14 is provided. This jumper is arranged so that it fits stably between two adjacent teeth of the toothing in each of the plurality of distinct positions of the ring 4. This jumper is preferably dimensioned to ensure accurate positioning of the ring 4, given the large clearance between the two pins 22, 23 and the toothing 5 and also the relatively high dead angle α for the pinion 12 during its rotation from its two tangential positions. However, the jumper is not provided here for shockproof function so that the elastic constant may be less than in conventional devices.

Le mouvement horloger 2 comprend en outre un deuxième indicateur 18 lié cinématiquement au mécanisme d'entrainement 8 du premier indicateur 4, ce deuxième affichage étant agencé de manière que le deuxième indicateur 18 peut être entraîné par ce mécanisme d'entrainement pour indiquer une deuxième information, notamment en relation avec un intervalle de temps chronométré, alors que le mobile tournant 10 reste dans une ou l'autre de deux zones angulaires mortes pour l'entrainement du premier indicateur. En effet, les deux goupilles du pignon 12 sont configurées par rapport à la denture 5 de l'anneau des quantièmes de manière qu'il existe un angle mort α pour l'entrainement de cet indicateur par ce pignon dans au moins un sens de rotation depuis chacune des deux positions tangentielles du pignon, le mobile tournant n'entraînant ainsi pas l'anneau des quantièmes dans deux zones angulaires mortes définies dans un repère angulaire lié au mouvement horloger et centré sur l'axe de rotation A10 du mobile tournant, ces deux zones angulaires mortes comprenant au moins l'angle mort indiqué depuis respectivement les deux positions tangentielles du pignon. Comme représenté à la Figure 2 où le pignon 12 est dans une position angulaire située en fin d'une zone angulaire morte, le deuxième affichage analogique et son mécanisme d'entrainement, lequel est ici constitué par une partie des mobiles du mécanisme d'entrainement 8, sont agencés de manière que le deuxième indicateur 18 peut effectuer une rotation d'au moins 360° alors que le pignon subit une rotation à l'intérieur de l'angle mort α depuis l'une quelconque de ses deux positions tangentielles. Lors d'une activation de l'indicateur 18, il est prévu un reset ou un retour en arrière périodique de cet indicateur tant que le pignon demeure angulairement dans une zone angulaire morte. On peut ainsi afficher de manière indépendante deux informations avec un seul mécanisme d'entrainement et en particulier un seul moteur électrique 16.The watch movement 2 further comprises a second indicator 18 kinematically connected to the driving mechanism 8 of the first indicator 4, this second display being arranged so that the second indicator 18 can be driven by this drive mechanism to indicate a second information. , especially in relation to a timed interval of time, while the rotating wheel 10 remains in one or the other of two dead angular zones for the driving of the first indicator. Indeed, the two pins of the pinion 12 are configured with respect to the toothing 5 of the date ring so that there is a dead angle α for the driving of this indicator by this pinion in at least one direction of rotation from each of the two tangential positions of the pinion, the rotating wheel thus not causing the ring of dates in two dead angular zones defined in an angular reference linked to the watch movement and centered on the axis of rotation A10 of the rotating wheel, these two dead angular zones comprising minus the dead angle indicated since respectively the two tangential positions of the pinion. As represented in Figure 2 where the pinion 12 is in an angular position at the end of a dead angular zone, the second analog display and its drive mechanism, which here consists of a part of the mobiles of the driving mechanism 8, are arranged in a manner that the second indicator 18 can rotate at least 360 ° while the pinion is rotated within the dead angle α from any of its two tangential positions. When the indicator 18 is activated, a periodic reset or reset of this indicator is provided as long as the pinion remains angularly in a dead angular zone. It is thus possible to independently display two pieces of information with a single drive mechanism and in particular a single electric motor 16.

Le mouvement horloger 2 présente plusieurs avantages, notamment en relation avec l'entrainement des deux indicateurs fournissant des informations indépendantes (quantième et intervalle de temps chronométré) au moyen d'une seule et même source motrice et avec la fonction antichoc obtenue par un système relativement simple, peu onéreux et facile à monter dans le mouvement horloger. Cependant, ce mouvement horloger présente certains inconvénients. Premièrement, les goupilles sont relativement petites. Il y a donc un risque réel qu'elles soient endommagées lors d'un choc subi par le mouvement horloger, notamment qu'elles se déforment durablement en pliant sous la force exercée par la denture sur ces goupilles lors de certains chocs. On peut certes augmenter un peu la section transversale des goupilles, mais alors on diminue les zones angulaires mortes. On peut également prendre une denture connue avec des creux ayant des flancs parallèles, comme représenté à la Figure 3, pour augmenter les zones angulaires mortes. Toutefois, même dans un tel cas, il est prévu un sautoir de positionnement qui est encombrant et qui demande une certaine énergie lors d'un changement de quantième. De plus, la fonction antichoc perd en efficacité lorsque le pignon 12 est situé dans la région terminale d'une zone angulaire morte, de sorte qu'en cas de chocs dans une telle situation, on ne peut pas assurer un blocage suffisant de l'anneau des quantièmes.The watch movement 2 has several advantages, particularly in relation to the training of the two indicators providing independent information (date and time interval timed) by means of a single driving source and with the anti-shock function obtained by a relatively simple, inexpensive and easy to mount in the watch movement. However, this watch movement has certain disadvantages. First, the pins are relatively small. There is therefore a real risk that they are damaged during an impact suffered by the watch movement, in particular that they deform durably by folding under the force exerted by the toothing on these pins during some shocks. It is possible to increase the cross section of the pins a little, but then the dead angular areas are reduced. It is also possible to take a known toothing with recesses having parallel flanks, as shown in FIG. Figure 3 , to increase the areas angular dead. However, even in such a case, there is provided a positioning jumper which is bulky and which requires some energy during a change of date. In addition, the anti-shock function loses efficiency when the pinion 12 is located in the end region of a dead angular zone, so that in case of shocks in such a situation, it can not ensure a sufficient blockage of the date ring.

A la Figure 3 est représenté une variante du mouvement horloger 2 dans lequel divers paramètres ont été améliorés, en partant d'une configuration similaire à celle connue de l'art antérieur. On n'a représenté que le pignon à goupilles 12A du mécanisme d'entrainement du mouvement horloger 2A, les autres parties étant identiques à celles du mouvement horloger 2. Ce pignon 12A comprend deux goupilles 24 et 25 de forme cylindrique avec un diamètre D. Les creux 7A de la denture 5A de l'anneau des quantièmes 4A ont un profil sensiblement rectangulaire et donc des flancs (parois latérales) parallèles. La largeur L des creux est environ égale à la largeur des dents à mi-hauteur. Le diamètre D des goupilles, de manière à garantir une résistance mécanique suffisante, est supérieur à la moitié de la largeur L des creux 7A.To the Figure 3 is shown a variant of the watch movement 2 in which various parameters have been improved, starting from a configuration similar to that known from the prior art. Only the pinion pin 12A of the drive mechanism of the watch movement 2A has been shown, the other parts being identical to those of the watch movement 2. This pinion 12A comprises two pins 24 and 25 of cylindrical shape with a diameter D. The troughs 7A of the teeth 5A of the date ring 4A have a substantially rectangular profile and therefore flanks (side walls) parallel. The width L of the hollows is approximately equal to the width of the teeth at half height. The diameter D of the pins, so as to ensure sufficient mechanical strength, is greater than half the width L of the recesses 7A.

Pour obtenir un angle mort α qui soit maximal pour une telle configuration, les goupilles ont été agencées de manière à laisser, dans les deux positions tangentielles mentionnées précédemment, un relativement petit jeu entre celles-ci et les deux dents définissant les flancs extérieurs 28 et 29 des deux creux respectifs en regard des deux goupilles, de sorte que l'anneau des quantièmes présente un relativement petit jeu angulaire lorsque le pignon est dans l'une ou l'autre des deux positions tangentielles. Ainsi, en ajustant au mieux les dimensions de la denture 5A et des goupilles, on pourrait se passer d'un sautoir de positionnement dans ces deux postions tangentielles, ce qui est un des buts de l'invention. Toutefois, comme on peut le voir à la Figure 3, lorsque le pignon 12A tourne dans une zone angulaire morte, par exemple lors d'un actionnement du deuxième indicateur, le jeu angulaire augmente et dès que la goupille sortante n'est plus en prise avec la denture, ce jeu devient important avec une valeur E1 égale à la différence entre la largeur L des creux et le diamètre des goupilles. Ainsi, on ne peut se passer d'un sautoir de positionnement dans le mouvement 2A.To obtain a dead angle α which is maximum for such a configuration, the pins have been arranged so as to leave, in the two tangential positions mentioned above, a relatively small clearance between these and the two teeth defining the outer flanks 28 and 29 of the two respective recesses opposite the two pins, so that the date ring has a relatively small angular play when the pinion is in one or other of the two tangential positions. Thus, by optimally adjusting the dimensions of the toothing 5A and the pins, one could dispense with a jumper positioning in these two tangential positions, which is one of the aims of the invention. However, as can be seen in Figure 3 when the pinion 12A rotates in a dead angular zone, for example during an actuation of the second indicator, the game angular increases and as soon as the outgoing pin is no longer in contact with the toothing, this game becomes important with a value E1 equal to the difference between the width L of the recesses and the diameter of the pins. Thus, one can not do without a jumper positioning in the movement 2A.

On notera qu'il est prévu généralement que le pignon soit dans l'une de ses deux positions tangentielles dans les périodes de repos où ni l'anneau des quantièmes, ni le deuxième indicateur ne sont entraînés. Ces positions de repos sont préférées car elles assurent la meilleure protection antichoc. On remarquera que dès qu'on s'en écarte, le couple de blocage opéré par le pignon diminue. Finalement, on notera que les positions de repos préférées ne sont pas toujours celles qui interviennent pratiquement pour diverses raisons, la première venant du fait que le pignon 12A peut être monté initialement avec un positionnement angulaire présentant une certaine variation, et la deuxième du fait que le moteur peut manquer certains pas de sorte que la position angulaire du pignon n'est pas connue précisément. Par conséquent, même lorsque le mécanisme d'entrainement est inactif dans des périodes de repos, le sautoir de positionnement prévu dans l'art antérieur s'avère nécessaire pour pallier ce problème. Cependant, l'invention résout ces problèmes de manière efficace en proposant la solution qui sera exposée ci-après.Note that it is generally expected that the pinion is in one of its two tangential positions in the rest periods where neither the date ring nor the second indicator are driven. These rest positions are preferred because they provide the best protection against shock. It will be noted that as soon as it deviates from it, the locking torque operated by the pinion decreases. Finally, it should be noted that the preferred rest positions are not always those that occur for a variety of reasons, the first being that the pinion 12A can be initially mounted with angular positioning having some variation, and the second that the the motor may miss some steps so that the angular position of the pinion is not precisely known. Therefore, even when the drive mechanism is inactive in periods of rest, the positioning jumper provided in the prior art is necessary to overcome this problem. However, the invention resolves these problems effectively by proposing the solution which will be explained below.

A l'aide des Figures 4A et 4B, on décrira un premier mode de réalisation d'un mouvement horloger 30. A l'exception du pignon 32, le mécanisme d'entrainement de l'anneau des quantièmes 4A et ce dernier sont identiques à ceux implémentés dans le mouvement 2A de la Figure 3. Ainsi, ils ne seront pas à nouveau décrits ici. Le pignon 32 comprend deux goupilles 34 et 36 qui présentent chacune, dans un plan général de la denture 5A perpendiculaire à l'axe de rotation A10 du mobile tournant comprenant le pignon 32, un profil transversal dont une première partie extérieure 38 est sensiblement en arc de cercle centré sur l'axe de rotation. La partie arrière 40 de chaque goupille est arrondie et correspond sensiblement à la partie arrière des goupilles 24 et 25 de la Figure 3. De fait, dans l'exemple représenté, un cercle ayant le diamètre des goupilles 24 et 25 est inscrit à l'intérieur de chaque goupille 36, 38. Ces goupilles 36 et 38 sont symétriques relativement à un plan comprenant l'axe de rotation A10 de manière à présenter un même comportement quel que soit le sens de rotation du pignon 32. La longueur tangentielle T de ces goupilles, perpendiculairement audit plan de symétrie, est prévue supérieure au diamètre D des goupilles 24, 25 et à la dimension radiale R des goupilles 36, 38. La partie extérieure en arc de cercle s'étend avantageusement sur toute cette longueur tangentielle. On notera que pour pouvoir entraîner l'anneau 4A, la longueur tangentielle T est inférieure à la largeur L des creux 7A.With the help of Figures 4A and 4B a first embodiment of a watch movement 30 is described. With the exception of the pinion 32, the drive mechanism of the date ring 4A and the latter are identical to those implemented in the movement 2A of FIG. Figure 3 . Thus, they will not be described again here. The pinion 32 comprises two pins 34 and 36 which each have, in a general plane of the toothing 5A perpendicular to the axis of rotation A10 of the rotating wheel comprising the pinion 32, a transverse profile of which a first outer portion 38 is substantially arcuate. circle centered on the axis of rotation. The rear portion 40 of each pin is rounded and substantially corresponds to the portion back of the pins 24 and 25 of the Figure 3 . In fact, in the example shown, a circle having the diameter of the pins 24 and 25 is inscribed inside each pin 36, 38. These pins 36 and 38 are symmetrical relative to a plane comprising the axis of rotation A10. so as to exhibit the same behavior regardless of the direction of rotation of the pinion 32. The tangential length T of these pins, perpendicular to said plane of symmetry, is greater than the diameter D of the pins 24, 25 and the radial dimension R of pins 36, 38. The outer portion in a circular arc advantageously extends over the entire tangential length. Note that in order to drive the ring 4A, the tangential length T is less than the width L of the recesses 7A.

A la Figure 4B, le pignon 32 a été tourné de l'angle mort α, l'anneau des quantièmes étant resté dans la même position angulaire durant cette rotation. On observe premièrement que l'angle mort est sensiblement égal à celui intervenant dans la réalisation de la Figure 3. De manière générale, il est prévu que l'angle mort est sensiblement égal ou supérieur à quinze degrés (15°= < α). On notera que dans une variante préférée, l'angle mort est sensiblement égal ou supérieur à vingt-cinq degrés (25°= < α). On observe ensuite que l'arc de cercle extérieur du profil transversal des deux goupilles s'étend sur une distance angulaire β qui est, dans l'exemple représenté, sensiblement égale à l'angle mort. De préférence, il est prévu dans d'autres variantes que la distance angulaire β soit supérieure à cet angle mort. On observe un bénéfice direct de l'invention à la Figure 4B, à savoir que le jeu maximal E2 d'une goupille configurée selon l'invention est bien inférieur au jeu maximal E1 de la réalisation de la Figure 3, alors que le jeu du pignon 32 dans ses deux positions tangentielles, correspondant à la situation de la Figure 4A, est identique dans les deux mouvements horlogers 2A et 30. Dans une variante avantageuse, le pignon et la denture sont agencés de manière que l'indicateur de calendrier présente, lorsque le pignon est dans une quelconque de ses deux positions tangentielles, un jeu angulaire qui est inférieur ou sensiblement égal à trente-cinq micronsTo the Figure 4B the pinion 32 has been rotated from the dead angle α, the date ring having remained in the same angular position during this rotation. It is first observed that the dead angle is substantially equal to that involved in the realization of the Figure 3 . In general, it is expected that the dead angle is substantially equal to or greater than fifteen degrees (15 ° = <α). Note that in a preferred embodiment, the dead angle is substantially equal to or greater than twenty-five degrees (25 ° = <α). It is then observed that the outer arc of the transverse profile of the two pins extends over an angular distance β which is, in the example shown, substantially equal to the dead angle. Preferably, it is provided in other variants that the angular distance β is greater than this dead angle. There is a direct benefit of the invention to the Figure 4B that is, the maximum clearance E2 of a pin configured according to the invention is much lower than the maximum clearance E1 of the embodiment of the invention. Figure 3 , while the play of pinion 32 in its two tangential positions, corresponding to the situation of the Figure 4A is identical in both watch movements 2A and 30. In an advantageous variant, the pinion and the toothing are arranged so that the calendar indicator has, when the pinion is in any of its two tangential positions, an angular clearance which is less than or substantially equal to thirty-five microns

(35 µm). De plus, dans une partie initiale de la zone angulaire morte définie par l'angle mort α, depuis la direction tangente 42 à la denture circulaire 5A, le jeu angulaire de l'anneau des quantièmes ne varie pas. Ceci résulte du fait que l'arc de cercle 38 a un rayon centré sur l'axe de rotation A10 du pignon 32. On notera que cette partie initiale s'étend ici environ sur la moitié de la distance angulaire β (correspondant dans cet exemple à l'ouverture angulaire des goupilles). En ajustant le profil de l'extrémité des dents, la distance angulaire de rotation à jeu constant est même supérieure. Dans une variante avantageuse, le pignon et la denture sont agencés de manière que l'indicateur de calendrier présente, lorsque le mobile tournant subit une rotation sur l'entier d'une quelconque des deux zones angulaires mortes, un jeu angulaire qui reste inférieur ou sensiblement égal à quarante microns (40 µm).(35 μm). In addition, in an initial part of the dead angular zone defined by the dead angle α, from the tangent direction 42 to the circular toothing 5A, the angular clearance of the date ring does not vary. This results from the fact that the arc of circle 38 has a radius centered on the axis of rotation A10 of the pinion 32. It will be noted that this initial part extends here about half of the angular distance β (corresponding in this example at the angular opening of the pins). By adjusting the profile of the end of the teeth, the angular distance of rotation to constant play is even greater. In an advantageous variant, the pinion and the toothing are arranged in such a way that the calendar indicator exhibits, when the rotating wheel rotates over the whole of any one of the two dead angular zones, an angular clearance which remains lower or substantially equal to forty microns (40 microns).

Grâce au profil des goupilles selon l'invention, en prévoyant un faible jeu dans les deux positions tangentielles du pignon, on peut donc éliminer le sautoir de positionnement tout en assurant un positionnement correct de l'anneau des quantièmes. D'autres avantages résultent de cette invention. Premièrement, pour une largeur L des creux de la denture 5A, les goupilles sont plus massives que dans le cas de la Figure 3. Elles sont donc plus solides et résistantes aux chocs. Ensuite, l'angle mort et donc la zone angulaire morte peuvent rester importante, notamment aussi grande que pour une réalisation avec des goupilles cylindriques classiques. Finalement, la fonction antichoc est grandement améliorée car, en cas de chocs, les points d'application de la force de l'anneau des quantièmes sur les goupilles demeurent sur une tangente interceptant l'axe de rotation A10 pour toute la distance angulaire de rotation à jeu constant. Ainsi, non seulement pour ses deux positions tangentielles mais sur toute cette distance angulaire, aucun couple n'est exercé sur le pignon 32 en cas de chocs extérieurs engendrant une accélération angulaire de l'anneau des quantièmes.Thanks to the profile of the pins according to the invention, by providing a small clearance in the two tangential positions of the pinion, we can eliminate the positioning jumper while ensuring a correct positioning of the date ring. Other advantages result from this invention. First, for a width L of the troughs of the toothing 5A, the pins are more massive than in the case of the Figure 3 . They are therefore stronger and resistant to shocks. Then, the dead angle and thus the dead angular zone can remain significant, especially as large as for an embodiment with conventional cylindrical pins. Finally, the anti-shock function is greatly improved because, in the event of shocks, the points of application of the strength of the date ring on the pins remain on a tangent intercepting the axis of rotation A10 for the entire angular distance of rotation. constant play. Thus, not only for its two tangential positions but throughout this angular distance, no torque is exerted on the pinion 32 in the event of external shocks generating an angular acceleration of the date ring.

A l'aide des Figures 5 et 6, on décrira ci-après deux variantes d'un deuxième mode de réalisation particulier dans lequel non seulement les goupilles présentes un profil spécifique propre à l'invention, mais également la denture de l'indicateur de calendrier. Dans ces deux variantes, l'arc de cercle 38 du profil transversal des deux goupilles s'étend sur une distance angulaire β comprise entre 3/2 multiplié par l'angle mort α et sensiblement deux fois cet angle mort (3α/2 < β < 2α). On rappellera que cet arc de cercle est centré sur l'axe de rotation A10 du mobile tournant qui est formé par les deux goupilles. Ensuite, dans ces deux variantes, chaque creux 7B, respectivement 7C de la denture 5B, 5C présente, au niveau des extrémités 48 de deux dents adjacentes 6B, 6C, une ouverture qui a une dimension L1 inférieure à la largeur de ce creux au niveau de sa région de contact avec les deux goupilles, lors d'un entrainement de l'indicateur de calendrier par le mobile tournant comprenant ces deux goupilles, et en particulier inférieure à la largeur maximale L2 en fond de denture. La région de contact susmentionnée s'étend sur une certaine distance le long des parois latérales 50, respectivement 62 des dents, au-delà de la tangente 42 à la denture circulaire en direction du fond de la denture.With the help of Figures 5 and 6 two variants of a second particular embodiment will be described below, in which not only the pins have a specific profile specific to the invention, but also the teeth of the calendar indicator. In these two variants, the arc 38 of the transverse profile of the two pins extends over an angular distance β between 3/2 multiplied by the dead angle α and substantially twice this dead angle (3α / 2 <β <2α). It will be recalled that this arc is centered on the axis of rotation A10 of the rotating wheel which is formed by the two pins. Then, in these two variants, each hollow 7B, respectively 7C of the toothing 5B, 5C has, at the ends 48 of two adjacent teeth 6B, 6C, an opening which has a dimension L1 less than the width of this hollow at its region of contact with the two pins, during a training of the calendar indicator by the rotating mobile comprising these two pins, and in particular less than the maximum width L2 in the bottom of teeth. The aforementioned contact region extends for a certain distance along the lateral walls 50, 62 respectively of the teeth, beyond the tangent 42 to the circular toothing towards the bottom of the toothing.

Ensuite, chaque goupille 46, respectivement 56 présente une dimension radiale R relativement à l'axe de rotation A10 du mobile tournant et une dimension tangentielle T, perpendiculaire à la dimension radiale, la valeur de cette une dimension tangentielle étant sensiblement égale à deux fois celle de la dimension radiale ou supérieure. On remarquera encore que la dimension L1 est prévue supérieure à la dimension radiale R et la dimension L2 est prévue supérieure à la dimension tangentielle T, faute de quoi l'engrènement du pignon à goupilles avec la denture de l'indicateur de calendrier ne peut être fonctionnel puisqu'il bloquera rapidement.Then, each pin 46, respectively 56 has a radial dimension R relative to the axis of rotation A10 of the rotating wheel and a tangential dimension T, perpendicular to the radial dimension, the value of this tangential dimension being substantially equal to twice that of radial dimension or higher. It will again be noted that the dimension L1 is greater than the radial dimension R and the dimension L2 is greater than the tangential dimension T, otherwise the meshing of the pinion gear with the toothing of the calendar indicator can not be functional since it will block quickly.

Dans la variante de la Figure 5, le profil latéral 50 des dents 6B, respectivement des bords latéraux des creux 7B est sensiblement rectiligne depuis la droite tangente 42 jusqu'au fond de la denture. Chaque creux 7B est évasé en direction du fond de denture et donc chaque dent 6B est évasée en direction de sa région d'extrémité 48. Au niveau des extrémités des dents, le profil des dents suit sensiblement un arc de cercle centré sur l'axe A10. Les goupilles 46 ont également une forme évasée en s'éloignant radialement de l'axe de rotation A10. Elles présentent une grande ouverture de manière à augmenter considérablement la distance angulaire β de l'arc de cercle défini par la partie extérieure de la dent. Ainsi, un faible jeu sensiblement constant est obtenu pour quasi l'ensemble de la distance angulaire morte, laquelle s'étend environ sur l'angle mort α dont la valeur est environ égale à 30° pour l'exemple représenté. Ainsi, les deux goupilles du pignon bloquent, en cas d'un choc extérieur, le premier indicateur lorsque le mobile tournant est angulairement dans une quelconque des deux zones angulaires mortes.In the variant of the Figure 5 , the lateral profile 50 of the teeth 6B, respectively of the lateral edges of the recesses 7B is substantially rectilinear from the tangent line 42 to the bottom of the toothing. Each hollow 7B is flared in the direction of the bottom of teeth and therefore each tooth 6B is flared towards its end region 48. At the ends of the teeth, the profile of the teeth substantially follows a circular arc centered on the axis A10. The pins 46 also have a flared shape radially away from the axis of rotation A10. They have a large opening so as to considerably increase the angular distance β of the arc defined by the external part of the tooth. Thus, a substantially constant low clearance is obtained for almost the entire dead angular distance, which extends approximately to the dead angle α whose value is approximately equal to 30 ° for the example shown. Thus, the two pins of the pinion block, in case of an external shock, the first indicator when the rotating wheel is angularly in any of the two dead angular zones.

Dans la variante de la Figure 6, la partie intérieure de chacune des deux goupilles 56 présente un profil également en arc de cercle de manière à permettre d'augmenter la dimension tangentielle T de ces goupilles sans pour autant augmenter leur dimension radiale R. Ceci permet d'augmenter l'ouverture angulaire des goupilles et ainsi de la distance angulaire définie par l'arc de cercle extérieur 38. Les dents 6C présentent un profil correspondant qui est agencé de manière à permettre d'obtenir un plus grand angle mort tout en ayant un faible jeu sensiblement constant sur la distance angulaire morte résultant de cet angle mort. Chaque dent possède un pied 58 avec des parois latérales 62 sensiblement parallèles. Ensuite, la largeur des dents augmente avec une section de profil circulaire 64 centrée sur l'axe A10, le rayon de ce profil circulaire étant prévu un peu inférieur à celui défini par la partie circulaire intérieure des goupilles. Finalement, pour faciliter la pénétration des goupilles dans la denture et éviter un blocage de l'engrenage, les dents présentent dans la région terminale de leur extrémité une section de profil 66 qui s'incurve vers l'axe A10, de manière à agrandir l'ouverture entre deux dents adjacentes au niveau de leurs extrémités. La longueur de la section 66 peut être ici relativement importante et s'étendre au-delà de la tangente 42 sans nuire au faible jeu sur la grande distance angulaire morte qui a une valeur entre 35° et 40° dans l'exemple représenté.In the variant of the Figure 6 , the inner part of each of the two pins 56 has a profile also in an arc so as to increase the tangential dimension T of these pins without increasing their radial dimension R. This increases the angular opening pins and thus the angular distance defined by the outer circular arc 38. The teeth 6C have a corresponding profile which is arranged to obtain a larger blind spot while having a substantially constant low clearance on the dead angular distance resulting from this blind spot. Each tooth has a foot 58 with side walls 62 substantially parallel. Then, the width of the teeth increases with a circular profile section 64 centered on the axis A10, the radius of this circular profile being provided a little lower than that defined by the inner circular portion of the pins. Finally, to facilitate the penetration of the pins in the toothing and prevent a locking of the gear, the teeth have in the end region of their end a profile section 66 which curves towards the axis A10, so as to enlarge the opening between two adjacent teeth at their ends. The length of the section 66 can here be relatively large and extend beyond the tangent 42 without impairing the low play on the large dead angular distance which has a value between 35 ° and 40 ° in the example shown.

De manière similaire à ce qui a été exposé précédemment en référence aux Figures 1 et 2, dans les premier et deuxième mode de réalisation, l'information de chaque indicateur de calendrier 4A, 4B et 4C, montrés respectivement aux Figures 4, 5 et 6, est une première information. Ainsi, l'affichage analogique est un premier affichage analogique et l'indicateur de calendrier est un premier indicateur. Ensuite, le mouvement horloger 44, respectivement 54 de ces deux modes de réalisation comprend en outre un deuxième affichage analogique (non représenté mais similaire à celui des Figures 1 & 2) comprenant un deuxième indicateur qui est lié cinématiquement au mécanisme d'entrainement du premier indicateur. Ce deuxième affichage est agencé de manière que le deuxième indicateur est entraîné par le mécanisme d'entrainement pour indiquer une deuxième information indépendante de la première information alors que le mobile tournant reste dans une ou l'autre des deux zones angulaires mortes définies par l'angle mort α depuis les deux positions tangentielles possibles du pignon à goupilles.In a manner similar to that described above with reference to Figures 1 and 2 in the first and second embodiments, the information of each calendar indicator 4A, 4B and 4C, respectively shown to Figures 4 , 5 and 6 , is a first information. Thus, the analog display is a first analog display and the calendar indicator is a first indicator. Next, the watch movement 44, respectively 54 of these two embodiments further comprises a second analog display (not shown but similar to that of the Figures 1 & 2 ) comprising a second indicator which is kinematically linked to the driving mechanism of the first indicator. This second display is arranged so that the second indicator is driven by the drive mechanism to indicate a second information independent of the first information while the rotating mobile remains in one or the other of the two dead angular zones defined by the dead angle α from the two possible tangential positions of the pinion gear.

Claims (14)

Mouvement horloger (2A,30,44,54) équipé d'un dispositif d'affichage analogique d'une information dont la valeur varie périodiquement ou par intermittence, ce dispositif d'affichage analogique comprenant un indicateur (4A,4B,4C) de ladite information muni d'une denture (5A,5B,5C) et un mécanisme d'entraînement périodique ou intermittent de cet indicateur, ce mécanisme comprenant un mobile tournant dont le pignon (32), en relation d'engrènement avec ladite denture, est formé de deux goupilles (34,36,46,56) qui sont diamétralement opposées relativement à l'axe de rotation (A10) du mobile tournant, ces deux goupilles étant configurées pour pénétrer alternativement dans des creux successifs (7A,7B,7C) de ladite denture et pour former un système autobloquant en cas de chocs subis par le mouvement horloger au moins lorsque le pignon est dans une quelconque des deux positions tangentielles où les deux goupilles sont sensiblement orientées tangentiellement à la denture de l'indicateur, chacune des deux goupilles présentant, dans un plan général de ladite denture perpendiculaire à l'axe de rotation du mobile tournant, un profil transversal dont une première partie extérieure (38) est sensiblement en arc de cercle centré sur l'axe de rotation, les deux goupilles dudit pignon étant configurées par rapport à ladite denture de l'indicateur de manière qu'il existe un angle mort (α) pour l'entrainement de cet indicateur par ce pignon dans au moins un sens de rotation depuis chacune desdites deux positions tangentielles du pignon, ledit mobile tournant n'entraînant ainsi pas l'indicateur dans deux zones angulaires mortes définies dans un repère angulaire lié au mouvement horloger et centré sur l'axe de rotation du mobile tournant, ces deux zones angulaires mortes comprenant au moins ledit angle mort depuis respectivement les deux positions tangentielles du pignon, la première partie extérieure du profil transversal des deux goupilles s'étendant sur une distance angulaire (β) sensiblement égale ou supérieure audit angle mort.Watchmaking movement (2A, 30,44,54) equipped with an analogue display device for a piece of information whose value varies periodically or intermittently, this analog display device comprising an indicator (4A, 4B, 4C) of said information provided with a toothing (5A, 5B, 5C) and a periodic or intermittent drive mechanism of this indicator, this mechanism comprising a rotating mobile whose pinion (32), in meshing relation with said toothing, is formed of two pins (34,36,46,56) which are diametrically opposed relative to the axis of rotation (A10) of the rotating wheel, these two pins being configured to penetrate alternately in successive recesses (7A, 7B, 7C) of said toothing and to form a self-locking system in the event of shocks to the watch movement at least when the pinion is in any of the two tangential positions where the two pins are substantially oriented tangentially to the teeth of the indicator, each of the two pins having, in a general plane of said toothing perpendicular to the axis of rotation of the rotating mobile, a transverse profile of which a first outer portion (38) is substantially in a circular arc centered on the axis of rotation , the two pins of said pinion being configured with respect to said toothing of the indicator so that there is a dead angle (α) for the drive of this indicator by this pinion in at least one direction of rotation from each of said two tangential positions of the pinion, said mobile rotating thus not causing the indicator in two dead angular zones defined in an angular reference linked to the watch movement and centered on the axis of rotation of the rotating mobile, these two dead angular zones comprising at least said dead angle from respectively the two tangential positions of the pinion, the first outer portion of the transverse profile of the two pins extendsan t over an angular distance (β) substantially equal to or greater than said dead angle. Mouvement horloger selon la revendication 1, caractérisé en ce que ledit angle mort est sensiblement égal ou supérieur à quinze degrés (15°= < α)Clock movement according to claim 1, characterized in that said dead angle is substantially equal to or greater than fifteen degrees (15 ° = <α) Mouvement horloger selon la revendication 1, caractérisé en ce que ledit angle mort est sensiblement égal ou supérieur à vingt-cinq degrés (250 = < α).Clock movement according to claim 1, characterized in that said dead angle is substantially equal to or greater than twenty-five degrees (250 = <α). Mouvement horloger selon la revendication 2 ou 3, caractérisé en ce que la première partie extérieure du profil transversal des deux goupilles s'étend sur une distance angulaire (β) comprise entre 3/2 multiplié par ledit angle mort et sensiblement deux fois cet angle mort (3α/2 < β < 2α).Clock movement according to claim 2 or 3, characterized in that the first outer portion of the transverse profile of the two pins extends over an angular distance (β) between 3/2 multiplied by said dead angle and substantially twice this blind spot (3α / 2 <β <2α). Mouvement horloger selon la revendication 4, caractérisé en ce que chaque creux (7B,7C) de ladite denture présente une ouverture, au niveau des extrémités des deux dents adjacentes, ayant une dimension (L1) inférieure à la largeur (L2) de ce creux au niveau de sa région de contact avec les deux goupilles lors d'un entrainement dudit indicateur par le mobile tournant.Clock movement according to claim 4, characterized in that each recess (7B, 7C) of said toothing has an opening, at the ends of the two adjacent teeth, having a dimension (L1) smaller than the width (L2) of this hollow at its region of contact with the two pins during a drive of said indicator by the rotating wheel. Mouvement horloger selon la revendication 5, caractérisé en ce que chaque goupille présente une dimension radiale (R) relativement à l'axe de rotation dudit mobile tournant et une dimension tangentielle (T), perpendiculaire à la dimension radiale, dont la valeur est sensiblement égale à deux fois celle de la dimension radiale ou supérieure.Clock movement according to claim 5, characterized in that each pin has a radial dimension (R) relative to the axis of rotation of said rotating wheel and a tangential dimension (T), perpendicular to the radial dimension, whose value is substantially equal to twice that of the radial or superior dimension. Mouvement horloger selon l'une quelconque des revendications 2 à 6, dans lequel ladite information est une première information, ledit affichage analogique est un premier affichage analogique et ledit indicateur est un premier indicateur, caractérisé en ce que ce mouvement horloger comprend un deuxième affichage analogique comprenant un deuxième indicateur (18) lié cinématiquement audit mécanisme d'entrainement du premier indicateur, ce deuxième affichage étant agencé de manière que le deuxième indicateur est entraîné par le mécanisme d'entrainement pour indiquer une deuxième information alors que le mobile tournant reste dans une ou l'autre des deux zones angulaires mortes.Clock movement according to any one of claims 2 to 6, wherein said information is a first information, said analog display is a first analog display and said indicator is a first indicator, characterized in that this watch movement comprises a second analog display comprising a second indicator (18) kinematically connected to said drive mechanism of the first indicator, said second display being arranged so that the second indicator is driven by the drive mechanism for indicate a second piece of information while the rotating wheel remains in one or the other of the two dead angular zones. Mouvement horloger selon la revendication 7, caractérisé en ce que les deux goupilles dudit pignon bloquent, en cas d'un choc, ledit premier indicateur lorsque le mobile tournant est angulairement dans une quelconque des deux zones angulaires mortes.Clock movement according to claim 7, characterized in that the two pins of said pinion block, in case of shock, said first indicator when the rotating wheel is angularly in any of the two dead angular zones. Mouvement horloger selon la revendication 7 ou 8, caractérisé en ce que le deuxième affichage analogique et son mécanisme d'entrainement sont agencés de manière que le deuxième indicateur peut effectuer une rotation d'au moins 360° alors que ledit pignon subit une rotation à l'intérieur dudit angle mort depuis l'une quelconque de ses deux positions tangentielles.Clock movement according to claim 7 or 8, characterized in that the second analog display and its drive mechanism are arranged in such a way that the second indicator can rotate at least 360 ° while said pinion is rotated at the same time. interior of said blind spot from any one of its two tangential positions. Mouvement horloger selon la revendication 9, caractérisé en ce que le deuxième affichage analogique est un affichage d'un intervalle de temps chronométré.Clock movement according to claim 9, characterized in that the second analog display is a display of a timed time interval. Mouvement horloger selon l'une quelconque des revendications 1 à 6 ou 7 à 10, caractérisé en ce que ledit indicateur, respectivement le premier indicateur est un anneau des quantièmes.Clock movement according to any one of claims 1 to 6 or 7 to 10, characterized in that said indicator, respectively the first indicator is a calendar ring. Mouvement horloger selon l'une quelconque des revendications 1 à 6 ou 7 à 10, caractérisé en ce que ledit pignon et ladite denture sont agencés de manière que ledit indicateur, respectivement ledit premier indicateur présente, lorsque ledit pignon est dans une quelconque de ses deux positions tangentielles, un jeu angulaire qui est inférieur ou sensiblement égal à trente-cinq microns (35 µm).Clock movement according to any one of claims 1 to 6 or 7 to 10, characterized in that said pinion and said toothing are arranged so that said indicator, respectively said first indicator, when said pinion is in any of its two tangential positions, an angular clearance that is less than or substantially equal to thirty-five microns (35 microns). Mouvement horloger selon l'une quelconque des revendications 1 à 6 ou 7 à 10, caractérisé en ce que ledit pignon et ladite denture sont agencés de manière que ledit indicateur, respectivement ledit premier indicateur présente, lorsque le mobile tournant subit une rotation sur l'entier d'une quelconque des deux zones angulaires mortes, un jeu angulaire qui reste inférieur ou sensiblement égal à quarante microns (40 µm).Clock movement according to any one of claims 1 to 6 or 7 to 10, characterized in that said pinion and said toothing are arranged so that said indicator, respectively said first indicator, when the rotating mobile is rotated on the full of any of the two dead angular zones, an angular clearance that remains less than or substantially equal to forty microns (40 microns). Mouvement horloger selon l'une quelconque des revendications précédentes, caractérisé en ce que ledit mécanisme d'entrainement comprend une source motrice (16) qui est formée par un moteur électrique bidirectionnel commandé par une unité électronique.Clock movement according to any one of the preceding claims, characterized in that said drive mechanism comprises a power source (16) which is formed by a bidirectional electric motor controlled by an electronic unit.
EP16203432.6A 2016-01-18 2016-12-12 Timepiece movement comprising an analogue display Active EP3196710B1 (en)

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EP4194958A1 (en) * 2021-12-10 2023-06-14 Blancpain SA Timepiece movement comprising a movable member provided with a means for variable adjustment of the inclination

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EP2927756A1 (en) 2014-04-03 2015-10-07 ETA SA Manufacture Horlogère Suisse Clock movement provided with a drive mechanism for an analogue indicator with periodic or intermittent movement

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US10054907B2 (en) 2018-08-21
CN106990704B (en) 2019-06-14
JP6316461B2 (en) 2018-04-25
CN106990704A (en) 2017-07-28
EP3193217A1 (en) 2017-07-19
US20170205769A1 (en) 2017-07-20
JP2017129575A (en) 2017-07-27

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