[go: up one dir, main page]

EP4474920A1 - Timepiece mechanism comprising a jumping disc - Google Patents

Timepiece mechanism comprising a jumping disc Download PDF

Info

Publication number
EP4474920A1
EP4474920A1 EP23178191.5A EP23178191A EP4474920A1 EP 4474920 A1 EP4474920 A1 EP 4474920A1 EP 23178191 A EP23178191 A EP 23178191A EP 4474920 A1 EP4474920 A1 EP 4474920A1
Authority
EP
European Patent Office
Prior art keywords
jumping
rotation
disk
drive member
phase
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.)
Pending
Application number
EP23178191.5A
Other languages
German (de)
French (fr)
Inventor
Sébastien LOPEZ
Marc Lemonnier
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.)
Manufacture dHorlogerie Audemars Piguet SA
Original Assignee
Manufacture dHorlogerie Audemars Piguet SA
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Manufacture dHorlogerie Audemars Piguet SA filed Critical Manufacture dHorlogerie Audemars Piguet SA
Priority to EP23178191.5A priority Critical patent/EP4474920A1/en
Priority to PCT/EP2024/065255 priority patent/WO2024251693A1/en
Publication of EP4474920A1 publication Critical patent/EP4474920A1/en
Pending legal-status Critical Current

Links

Images

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
    • 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
    • G04B19/25333—Driving or releasing mechanisms wherein the date indicators are driven or released mechanically by a clockwork movement
    • G04B19/25373—Driving or releasing mechanisms wherein the date indicators are driven or released mechanically by a clockwork movement driven or released stepwise by an energy source which is released at determined moments by the clockwork movement

Definitions

  • the present invention relates to a clockwork mechanism comprising a jumping disk arranged to be able to jump by one step in a direction of rotation, a device for driving the jumping disk comprising a rotary drive member arranged to be, with the jumping disk, fixed during a rest phase, and to, during a jump phase, drive the jumping disk by one step in a jumping manner in said direction of rotation, and a device for blocking the jumping disk arranged to allow rotation of the jumping disk in said direction of rotation during the jump phase and to prevent rotation of the jumping disk at least in said direction of rotation during the rest phase.
  • the present invention also relates to a timepiece comprising such a timepiece mechanism.
  • Such a mechanism is described for example in the patent application CH 717 262 .
  • This mechanism is more specifically dedicated to a date disk coupled to a drive device comprising a control element mounted movably between a rest position not coupled with the date disk and an increment position coupled with the date disk.
  • the control element is mounted on a pivoting frame in order to be able to switch between its two positions.
  • the mechanism comprises a blocking device for preventing any accidental incrementation such as during an impact.
  • the blocking device comprises a pin mounted on the pivoting frame and arranged to engage between two edge teeth provided on the outer periphery of the date disk when the pivoting frame is in the rest position. This blocking device presents the risk of not functioning if the pivoting frame is not in a correct rest position so that the pin will be incorrectly positioned.
  • Another possibility known to those skilled in the art for immobilizing a jumping disk is to provide, in a conventional manner, a jumper.
  • a jumper is arranged to lift against a restoring force exerted by a spring associated with the jumper during the jumping phase in order to allow the rotation of the disk to perform its jump.
  • a spring associated with the jumper In order to prevent rotation in the direction of the jump in the event of an impact for example, it is possible to increase the force of the spring of the jumper.
  • the present invention aims to remedy at least in part these drawbacks by proposing a watch mechanism comprising a device for blocking a jumping disk making it possible to prevent an untimely jump under particular conditions, for example in the event of an impact to the timepiece at rest, as well as to prevent a double jump of the jumping disk during a jump phase.
  • the invention relates to a timepiece mechanism comprising a jumping disk arranged to be able to jump by one step in a direction of rotation, a device for driving the jumping disk comprising a rotary drive member arranged to be, with the jumping disk, fixed during a rest phase, and to, during a jump phase, drive the jumping disk by one step in a jumping manner in said direction of rotation, and a device for blocking the jumping disk arranged to allow rotation of the jumping disk in said direction of rotation during the jump phase and to prevent rotation of the jumping disk at least in said direction of rotation during the rest phase.
  • said locking device comprises a locking rocker positioned between the jumping disk and the drive member, and preferably mounted free to rotate, said locking rocker comprising a head and being arranged to be able to move between a high locking position in which said head is held by an outer peripheral edge of the drive member while being able to constitute a rotation stop in said direction of rotation for the jumping disk during the rest phase, and a low release position in which said head is engaged in a notch provided on said outer peripheral edge of the drive member in order to be released from the jumping disk, said notch being arranged to be at least partly positioned opposite the head of the locking lever at the start of the jumping phase so that the jumping disk is free to rotate, and to no longer be opposite said head of the locking lever after the jumping phase, or preferably before the end of the jumping phase, so that the locking lever returns to its high locking position.
  • the jumping disk is free to rotate in one direction during the jumping phase, and is blocked in rotation in the same direction at least during the rest phase, preventing any untimely jump in said direction in the event of an impact for example.
  • the blocking device is active before the end of the jumping phase, once a jump has been performed, so that a double jump of the jumping disk is impossible.
  • the blocking device according to the invention acts as both an anti-double jump and an anti-shock device.
  • the jumping disc is an hour disc and the drive member is driven via an hour wheel.
  • the present invention relates to a jumping disc clock mechanism and will be described below with reference to a clock mechanism intended to be implemented more particularly in a jumping hour mechanism.
  • this mechanism shown in its position in the rest phase, comprises a jumping hour disk 1 partially shown in the figures and arranged to be able to jump one step in a direction of rotation during a jump phase, i.e. here to jump one hour clockwise.
  • the jumping disk 1 has the shape of a ring with center A, empty in its center, defining an inner periphery 1a and on which the twelve hour digits from 1 to 12 are distributed in a regular and orderly manner.
  • the jumping disk 1 On its inner periphery 1a, there are provided at least as many notches 2 as jumps to be made in one revolution. Preferably, there are as many notches 2 as there are jumps to be made in one revolution, i.e. here 12 notches 2, a notch 2 corresponding to a time displayed on the jumping disk 1.
  • the jumping disk 1 is mounted on a frame of the mechanism, free to rotate with center A. It is guided in rotation for example by rollers 4. Any other means of guidance can be used.
  • a drive device 5 of the jumping disk 1 which comprises a drive pinion 6 meshing with an hour wheel 7 of the movement of the timepiece and a drive star 8 secured to said drive pinion 6.
  • the drive star 8 comprises teeth 8a, here four in number, the role of which will be described below.
  • the hour wheel 7 makes one revolution in 12 hours, or in 24 hours according to another variant, and slowly drives the drive pinion 6 and therefore the drive star 8 so that it rotates 45° per hour in the counterclockwise direction.
  • the drive device 5 also comprises a rotary drive member 10, free to rotate about center A.
  • the drive member 10 is mounted on the frame of the mechanism at the same level as the jumping disk 1 and concentrically with said jumping disk 1.
  • the drive member 10 is guided in rotation for example by rollers 12. Any other guiding means can be used.
  • the drive member 10 has the general form of a ring defining an inner peripheral edge 10a and an outer peripheral edge 10b.
  • the drive member 10 is associated with an elastic return member 11, such as a return spring, said drive member 10 being arranged to be driven in rotation in the other direction of rotation, here the counterclockwise direction, by arming its return member 11 during an arming phase, independently of the jumping disk 1, and to, during the jumping phase, rotate in the direction of rotation of the jump, here the clockwise direction, under the effect of its return member 11 by driving the jumping disk 1 by one step in a jumping manner in said direction of rotation of the jump.
  • an elastic return member 11 such as a return spring
  • a lug 14 arranged to be able to be engaged with a tooth 8a of the drive star 8.
  • the teeth 8a of the drive star 8 and the lug 14 are configured so that once the counterclockwise rotation necessary for winding the return member 11 has been performed, the tooth 8a continues to rotate counterclockwise while no longer being engaged with the lug 14.
  • the drive member 10 is released for the jump phase and its return member 11 releases all of its energy by instantly returning the drive member 10 in a clockwise rotation so that it returns to its position during the rest phase.
  • the teeth 8a are also configured so as not to drive the drive member 10 during the rest phase, said drive member 10 being fixed during said rest phase.
  • the jumping disk 1 is fixed during the rest and winding phases.
  • a flexible finger 16 is provided on the outer peripheral edge 10b of the drive member 10, for example a finger mounted on a spring blade secured to the drive member 10.
  • the flexible finger 16 is arranged to retract upon contact with a notch 2' of the jumping disk 1 when the drive member 10 is driven in the other direction of rotation, here the counterclockwise direction, during the winding phase, and to drive the jumping disk 1 by one step in the direction of rotation of the jump, here the clockwise direction, by pushing said notch 2' of the jumping disk 1 in said direction of rotation, here the clockwise direction, when the drive member 10 rotates in said clockwise direction during the winding phase, returned to its rest position by its return member 11.
  • the flexible finger 16 has at its rear end, in the clockwise direction, an inclined plane to facilitate its passage behind the notch 2' during the winding phase, and at its front end, a straight face configured to come opposite the notch 2' at the start of the winding phase.
  • the sudden rotation of the drive member 10, released from the star 8 and returned by its return member 11 causes a sudden rotation of the jumping disk 1 pushed by the flexible finger 16, thus achieving a jump of the hour.
  • the latter is arranged to move between two stops, one of which corresponds to the position of the drive member 10 during the rest phase and the other corresponds to the position of the drive member 10 at the end of the arming phase.
  • the drive member 10 has an oblong opening 18 in which a pin 20 integral with the frame circulates.
  • the rear edge 18a in the clockwise direction of the opening 18 constitutes a stop for the pin 20 when the drive member 10 reaches its position during the rest phase and the front edge 18b in the clockwise direction could constitute a stop for the pin 20 when the drive member 10 reaches its position at the end of the arming phase.
  • the front stop 18b determines a clearance with the position of the drive member 10 at the end of the arming phase. Due to such a clearance, the front stop 18b could only come into contact with the pin 20 in the event of impacts during the arming phase. Thus, the drive member 10 is limited in movement by at least one of the two stops 18a, 18b.
  • the clockwork mechanism also comprises a device for blocking the jumping disc 1 arranged to allow the rotation of the jumping disc 1 in the direction of rotation of the jump, i.e. clockwise, during the jump phase and to prevent rotation of the jumping disk 1 at least in said direction of rotation during the rest phase in order to prevent any untimely jump, such as a jump in the event of impacts or a double jump.
  • said locking device comprises a locking lever 22 mounted between the jumping disk 1 and the drive member 10 on a single level in the example shown.
  • the locking lever is mounted to rotate freely about the axis B and is arranged to be able to move freely between a locking position, called the high locking position, in which the locking lever 22, in particular its head 25, is held by the outer peripheral edge 10b of the drive member 10 while being able to constitute a rotation stop in the direction of rotation of the jump, here the clockwise direction, for the jumping disk 1 during the rest phase, and a release position, called the low release position, in which the locking lever 22, in particular its head 25, is engaged in a notch 24 provided on said outer peripheral edge 10b of the drive member 10 so that said locking lever, in particular its head 25, is disengaged from the jumping disk 1 at least at the start of the jump phase.
  • a locking position called the high locking position
  • the locking lever 22, in particular its head 25 is held by the outer peripheral edge 10b of the drive member 10 while being able to constitute a rotation stop in the direction of rotation
  • said notch 24 is arranged so that, during rotation of the drive member 10 in the other direction of rotation, here the counterclockwise direction, it is at least partly positioned opposite the head 25 of the locking lever 22 at the start of the jump phase so that the jumping disk 1 is free to rotate, and so that, following rotation of the drive member 10 in the direction of rotation of the jump, here the clockwise direction, it is no longer opposite the head 25 of the locking lever 22 after the jump phase, or preferably before the end of the jump phase and after the start of the jump phase, so that the locking lever 22 returns to its high locking position.
  • the notch 24 is not opposite the head 25 of the locking lever 22 during the rest phase before or after the jump phase, or preferably during the rest phase and after the start of the jump phase until the end of the jump phase, the notch 24 being opposite the head 25 at the start of the jump phase.
  • the locking lever 22 is positioned between the inner periphery 1a of the jumping disk 1 and the outer peripheral edge 10b of the drive member 10, the arm of the locking lever 22 extending approximately concentrically to the jumping disk 1 and to the drive member 10.
  • the locking lever 22 comprises a head 25 having a heel 26 arranged to be able to cooperate with one of the notches 2 of the jumping disk 1 when it is in its high locking position.
  • the head 25 also comprises, opposite the heel 26, a beak 28 arranged to cooperate with the outer peripheral edge 10b of the drive member 10 when the locking lever 22 is in its high position and to cooperate with the notch 24 of the drive member 10 when the locking lever 22 is in its low release position.
  • the notches 2 of the jumping disk 1, the heel 26 and the beak 28 of the locking lever are dimensioned so that, when the locking lever 22 is in its high locking position, a notch 2 of the jumping disk 1 abuts against the heel 26 in the event of rotation of the jumping disk while the beak 28 is held in position by the outer peripheral edge 10b of the drive member 10, and so that, when the locking lever 22 is in its low release position, the engagement of the beak 28 in the notch 24 allows the locking lever 22 to pivot sufficiently about its axis B so as to move its heel 26 away from the notches 2 of the jumping disk 1. In this position, said jumping disk 1, in particular each of its notches 2, can pass above the locking lever 22 and can rotate freely.
  • the notch 24 is sized and positioned on the outer peripheral edge 10b of the drive member 10 so that the beak 28 of the head 25 of the locking lever 22 falls into the notch 24 during the arming phase, for example at the start of the arming phase, and arrives substantially at the front end of said notch 24 in the direction of rotation of the jump, here the clockwise direction, at the end of the arming phase, so that the heel 26 of the head 25 of the locking lever 22 is at a distance of a notch 2 during the arming phase, and so that the beak 28 of the head 25 of the locking lever 22 is positioned substantially at the rear end of the notch 24 in said direction of rotation, here the clockwise direction, as soon as the notch 2 which was blocked by the locking lever 22 has passed.
  • the locking lever 22 quickly leaves the notch 24 and returns to its high locking position during the jump phase in order to be able to lock the next notch 2 before the drive member 10 reaches its position corresponding to the rest phase.
  • a pin 30 is provided on the frame near the head 25 of the locking lever 22.
  • Said pin 30 may be intended to receive, at its free end, a member of a diameter making it possible to at least partially cover the head 25 of the locking lever 22 in order to prevent the locking lever 22 from lifting and to keep it in its working plane.
  • the pin 30 has, at its free end, the aforementioned diameter.
  • the locking device also comprises a jumper 32 arranged to allow the jumping disk 1 to rotate freely in the direction of rotation of the jump, here the clockwise direction, during the jump phase and to block said jumping disk 1 in the other direction of rotation, here the counterclockwise direction, during the rest phase.
  • a jumper 32 arranged to allow the jumping disk 1 to rotate freely in the direction of rotation of the jump, here the clockwise direction, during the jump phase and to block said jumping disk 1 in the other direction of rotation, here the counterclockwise direction, during the rest phase.
  • said jumper 32 is mounted, pivoting at C, on the frame. It is associated with a return spring 34.
  • the jumper 32 has at the front, in the direction of rotation of the jump, here the clockwise direction, a front flank 36 which is cut to be substantially perpendicular to the notch 2" of the jumping disk 1 located at the front of the jumper 32 in said direction of rotation.
  • the jumper 32 makes it possible to prevent rotation of the jumping disk 1 in the counterclockwise direction, the notch 2" being blocked by its front flank 36.
  • the jumper 32 also has a rising flank 38 and a falling flank 40 formed by inclined planes which allow the movement of the jumper 32 by the notches 2 of the jumping disk 1.
  • the rising flank 38 allows, by means of the notch 2" of the jumping disk 1 which comes into contact with the jumper 32 at the start of the jumping phase, to move said jumper 32, against its return spring 34, by moving it away from the jumping disk 1, authorizing the rotation of the jumping disk 1 in the clockwise direction.
  • the falling flank 40 allows the rotation of the jumping disk 1 to be completed by using the elastic energy of the return spring of the jumper 34 when the latter returns to the rest position.
  • the jumper 32 is configured so that, in the position corresponding to the rest phase, its front flank 36 is in contact with a flank of a notch 2", and so that the notch 2 which will follow, in the direction of rotation of the jump, here the clockwise direction, is substantially in contact with the rising flank 38.
  • the drive member 10 and the jumping disk 1 are fixed.
  • the pin 20 abuts against the rear edge 18a of the opening 18 of the drive member 10.
  • the jumper 32 immobilizes the jumping disk 1 under normal conditions of use of the mechanism.
  • the locking lever 22 is held in its high locking position by its beak 28 resting on the outer peripheral edge 10b of the drive member 10, its heel 26 preventing the notch 2 of the jumping disk 1 from passing above the locking lever 22.
  • a tooth 8a of the drive star 8 driven by the hour wheel approaches the lug 14 of the drive member 10 to initiate the winding phase, shown in the figure 2 .
  • the drive member 10 is driven, via its lug 14, by the tooth 8a of the drive star 8 in the direction of rotation opposite to the direction of rotation of the jump, i.e. here in the counterclockwise direction.
  • This has the effect of arming its elastic return member 11.
  • Its flexible finger 16 retracts upon contact with a notch 2' of the jumping disk 1 which remains fixed during the arming phase.
  • the latter then has the possibility of tilting in direction of the notch 24 in its low release position, for example by gravity, so that its heel 26 moves away from the notch 2 of the jumping disk 1.
  • the jumping disk 1 is no longer blocked by the blocking lever 22.
  • the beak 28 of the blocking lever 22 is located opposite the notch 24, in a clockwise direction, and the pin 20 is, preferably, close to the front edge 18b of the opening 18 of the drive member 10 so as to leave a clearance between the pin and the front edge 18b of the opening 18 when the drive member 10 is fully armed.
  • the tooth 8a of the star 8 continues its rotation in the counterclockwise direction so that it can no longer drive the lug 14 of the drive member 10. The latter is then released and turns in the clockwise direction, brought back by its elastic return member 11 so that its flexible finger 16 drives the notch 2' of the jumping disk 1 in the clockwise direction. If the locking lever 22 has already fallen into the notch 24 during the winding phase, the jumping disk 1 can rotate freely in the clockwise direction, moving the jumper 32 by its notch 2" resting on the rising flank 38.
  • the notch 2 of the jumping disk 1 driven in the clockwise direction by the drive member 10 moves the locking lever 22 by its heel 26, the beak 28 of said locking lever 22 being opposite the notch 24 no longer being held by the outer peripheral edge 10b of the drive member 10.
  • the notch 2 of the jumping disk 1, having caused the locking lever 22 to fall into the notch 24, can pass over said locking lever 22 which has pivoted sufficiently around its axis B to allow free rotation of the jumping disk 1 in a clockwise direction.
  • the jumping phase continues, the drive member 10 still rotating clockwise under the effect of its elastic return member 11. Its flexible finger 16 still drives the notch 2' of the jumping disk 1 so that the jumping disk 1 continues its rotation clockwise while continuing to move the jumper 32 against the return spring 34 tending to return it to its rest position.
  • the jumping phase continues, the drive member 10 still rotating clockwise under the effect of its elastic return member 11. Its flexible finger 16 still drives the notch 2' of the jumping disk 1 so that the jumping disk 1 continues its rotation clockwise.
  • the jumper 32 passes the jumping moment, the notch 2" of the jumping disk 1 engaging on the descending flank 40.
  • the drive member 10 having rotated clockwise, the locking lever 22 has come out of the notch 24 and has returned to its high locking position, so that the next notch 2'" of the jumping disk 1 will be blocked by the heel 26 of the locking lever 22. Thus, a double jump is impossible.
  • the jumping phase ends, the rear edge 18a of the opening 18 of the drive member 10 preferably comes into abutment against the pin 20 so that the drive member 10 can no longer continue its rotation.
  • the flexible finger 16 can no longer drive the notch 2' of the jumping disk 1.
  • the descending flank 40 of the jumper 32 returned to its rest position by its spring 34, pushes the notch 2" of the jumping disk 1 so that the latter completes its rotation in the clockwise direction.
  • the locking lever 22 is in its high locking position, preventing any double jump.
  • the jumping phase is over and the mechanism has returned to its rest phase.
  • the rear edge 18a of the opening 18 of the drive member 10 is preferably in abutment against the pin 20, the jumper 32 has repositioned the jumping disk 1, the notch 2" being in contact with its front flank 36.
  • the locking lever 22 is in its high locking position, its beak 28 being held by the outer peripheral edge 10b of the drive member 10. The mechanism is ready for the next jump.
  • the mechanism according to the invention makes it possible to have a device for blocking the jumping disk which prevents any untimely jump in the direction of rotation of the jump, whether it is a double jump or in the event of an impact.
  • the mechanism according to the invention prevents any untimely jump in the opposite direction of rotation to that of the jump, or even in both directions of rotation if the force of the return spring 34 is oversized and thus contributes to the notch 2 not being able to rise along the rising flank 38.
  • the mechanism according to the invention uses in a particularly advantageous manner a locking lever without a return spring. This makes it possible in particular to overcome problems linked to gravity, energy consumption and to simplify the mechanism.
  • the energy source comes from the hour wheel.
  • This has the advantage of having twelve times more torque than if one were engaged with a minute wheel, which is conventionally done in jumping hour mechanisms.
  • the jumping disk and the drive member may not be concentric.
  • this mechanism can advantageously be arranged on a single level to benefit from a minimum thickness, it is also possible to provide an arrangement of this mechanism on several levels, where typically at least two members among the jumping disk 1, the locking lever 22 and the drive member 10 are on the same level.
  • the locking device can be on another level.
  • the locking lever can cooperate with the drive member and the jumping disk by means of pins secured to the drive member, respectively to the jumping disk. This embodiment can be implemented if the mechanism cannot be produced on a single level for reasons of space for example.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Transmission Devices (AREA)

Abstract

La présente invention concerne un mécanisme horloger comprenant un disque sautant (1) agencé pour pouvoir sauter d'un pas dans un sens de rotation, un dispositif d'entrainement du disque sautant comprenant un organe entraîneur (10) rotatif agencé pour être, avec le disque sautant (1), fixe lors d'une phase de repos, et pour, lors d'une phase de saut, entraîner le disque sautant (1) d'un pas de manière sautante dans ledit sens de rotation, et un dispositif de blocage du disque sautant agencé pour autoriser la rotation du disque sautant (1) dans ledit sens de rotation lors de la phase de saut et pour empêcher une rotation du disque sautant (1) au moins dans ledit sens de rotation lors de la phase de repos. Ledit dispositif de blocage comprend une bascule de blocage (22) montée entre le disque sautant (1) et l'organe entraîneur (10) et comprenant une tête (25), ladite bascule de blocage (22) étant agencée pour pouvoir évoluer entre une position haute de blocage dans laquelle ladite tête (25) est maintenue par un bord périphérique extérieur (10b) de l'organe entraîneur (10) tout en étant apte à constituer une butée en rotation dans ledit sens de rotation pour le disque sautant (1) lors de la phase de repos, et une position basse de libération dans laquelle ladite tête (25) est engagée dans une encoche (24) prévue sur ledit bord périphérique extérieur (10b) de l'organe entraîneur (10) afin d'être dégagée du disque sautant (1), ladite encoche (24) étant agencée pour être au moins en partie positionnée en vis-à-vis de la bascule de blocage (22) au début de la phase de saut de sorte que le disque sautant (1) est libre en rotation, et pour ne plus être en vis-à-vis de ladite tête (25) après la phase de saut, ou de préférence avant la fin de la phase de saut, afin que la bascule de blocage (22) retrouve sa position haute de blocage pour empêcher tout double saut ou tout saut intempestif dans le sens de rotation du saut en cas de choc.The present invention relates to a clockwork mechanism comprising a jumping disc (1) arranged to be able to jump by one step in a direction of rotation, a device for driving the jumping disc comprising a rotary drive member (10) arranged to be, with the jumping disc (1), fixed during a rest phase, and to, during a jump phase, drive the jumping disc (1) by one step in a jumping manner in said direction of rotation, and a device for blocking the jumping disc arranged to allow rotation of the jumping disc (1) in said direction of rotation during the jump phase and to prevent rotation of the jumping disc (1) at least in said direction of rotation during the rest phase. Said locking device comprises a locking lever (22) mounted between the jumping disk (1) and the drive member (10) and comprising a head (25), said locking lever (22) being arranged to be able to move between a high locking position in which said head (25) is held by an outer peripheral edge (10b) of the drive member (10) while being able to constitute a rotation stop in said direction of rotation for the jumping disk (1) during the rest phase, and a low release position in which said head (25) is engaged in a notch (24) provided on said outer peripheral edge (10b) of the drive member (10) in order to be released from the jumping disk (1), said notch (24) being arranged to be at least partly positioned opposite the locking lever (22) at the start of the jumping phase so that the jumping disk (1) is free to rotate, and to no longer be in opposite said head (25) after the jump phase, or preferably before the end of the jump phase, so that the locking lever (22) returns to its high locking position to prevent any double jump or any untimely jump in the direction of rotation of the jump in the event of an impact.

Description

Domaine techniqueTechnical field

La présente invention concerne un mécanisme horloger comprenant un disque sautant agencé pour pouvoir sauter d'un pas dans un sens de rotation, un dispositif d'entrainement du disque sautant comprenant un organe entraineur rotatif agencé pour être, avec le disque sautant, fixe lors d'une phase de repos, et pour, lors d'une phase de saut, entraîner le disque sautant d'un pas de manière sautante dans ledit sens de rotation, et un dispositif de blocage du disque sautant agencé pour autoriser la rotation du disque sautant dans ledit sens de rotation lors de la phase de saut et pour empêcher une rotation du disque sautant au moins dans ledit sens de rotation lors de la phase de repos.The present invention relates to a clockwork mechanism comprising a jumping disk arranged to be able to jump by one step in a direction of rotation, a device for driving the jumping disk comprising a rotary drive member arranged to be, with the jumping disk, fixed during a rest phase, and to, during a jump phase, drive the jumping disk by one step in a jumping manner in said direction of rotation, and a device for blocking the jumping disk arranged to allow rotation of the jumping disk in said direction of rotation during the jump phase and to prevent rotation of the jumping disk at least in said direction of rotation during the rest phase.

La présente invention concerne également une pièce d'horlogerie comprenant un tel mécanisme horloger.The present invention also relates to a timepiece comprising such a timepiece mechanism.

Etat de la techniqueState of the art

Un tel mécanisme est décrit par exemple dans la demande de brevet CH 717 262 . Ce mécanisme est plus spécifiquement dédié à un disque de quantième couplé à un dispositif d'entrainement comprenant un élément de commande monté mobile entre une position de repos non couplé avec le disque de quantième et une position d'incrémentation couplé avec le disque de quantième. L'élément de commande est monté sur un cadre pivotant afin de pouvoir basculer entre ses deux positions. Le mécanisme comprend un dispositif de blocage permettant d'empêcher toute incrémentation accidentelle comme lors d'un choc. Le dispositif de blocage comprend une cheville montée sur le cadre pivotant et agencée pour s'engager entre deux dents de chant prévues à la périphérie extérieure du disque de quantième lorsque le cadre pivotant est en position de repos. Ce dispositif de blocage présente le risque de ne pas fonctionner si le cadre pivotant ne se retrouve pas dans une position de repos correcte de sorte que la cheville sera mal positionnée. De plus, le dispositif de blocage étant actif seulement lorsque le cadre pivotant est en position de repos, il y a un risque d'un double saut si le cadre pivotant ne retrouve pas sa position de repos à temps. Par ailleurs, cela oblige à concevoir un disque de quantième spécifique comprenant des dents de chant sur tout sa périphérie extérieure.Such a mechanism is described for example in the patent application CH 717 262 . This mechanism is more specifically dedicated to a date disk coupled to a drive device comprising a control element mounted movably between a rest position not coupled with the date disk and an increment position coupled with the date disk. The control element is mounted on a pivoting frame in order to be able to switch between its two positions. The mechanism comprises a blocking device for preventing any accidental incrementation such as during an impact. The blocking device comprises a pin mounted on the pivoting frame and arranged to engage between two edge teeth provided on the outer periphery of the date disk when the pivoting frame is in the rest position. This blocking device presents the risk of not functioning if the pivoting frame is not in a correct rest position so that the pin will be incorrectly positioned. In addition, since the blocking device is active only when the pivoting frame is in the rest position, there is a risk of a double jump if the pivoting frame does not return to its rest position at time. Furthermore, this requires the design of a specific date disc comprising edge teeth around its entire outer periphery.

Une autre possibilité connue de l'homme du métier pour immobiliser un disque sautant est de prévoir, d'une manière classique, un sautoir. Un tel sautoir est agencé pour se soulever à l'encontre d'une force de rappel exercée par un ressort associé au sautoir lors de la phase de saut afin d'autoriser la rotation du disque pour effectuer son saut. Afin d'empêcher une rotation dans le sens du saut en cas de choc par exemple, il est possible d'augmenter la force du ressort du sautoir. Toutefois, cela aurait pour inconvénient de nécessiter une force importante et donc une grande consommation d'énergie pour soulever le sautoir lors de la phase de saut.Another possibility known to those skilled in the art for immobilizing a jumping disk is to provide, in a conventional manner, a jumper. Such a jumper is arranged to lift against a restoring force exerted by a spring associated with the jumper during the jumping phase in order to allow the rotation of the disk to perform its jump. In order to prevent rotation in the direction of the jump in the event of an impact for example, it is possible to increase the force of the spring of the jumper. However, this would have the disadvantage of requiring a significant force and therefore a large consumption of energy to lift the jumper during the jumping phase.

La présente invention vise à remédier au moins en partie à ces inconvénients en proposant un mécanisme horloger comprenant un dispositif de blocage d'un disque sautant permettant d'empêcher un saut intempestif dans des conditions particulières, par exemple en cas de choc de la pièce d'horlogerie au repos, ainsi que d'empêcher un double saut du disque sautant lors d'une phase de saut.The present invention aims to remedy at least in part these drawbacks by proposing a watch mechanism comprising a device for blocking a jumping disk making it possible to prevent an untimely jump under particular conditions, for example in the event of an impact to the timepiece at rest, as well as to prevent a double jump of the jumping disk during a jump phase.

Divulgation de l'inventionDisclosure of the invention

A cet effet, l'invention concerne un mécanisme horloger comprenant un disque sautant agencé pour pouvoir sauter d'un pas dans un sens de rotation, un dispositif d'entrainement du disque sautant comprenant un organe entraineur rotatif agencé pour être, avec le disque sautant, fixe lors d'une phase de repos, et pour, lors d'une phase de saut, entraîner le disque sautant d'un pas de manière sautante dans ledit sens de rotation, et un dispositif de blocage du disque sautant agencé pour autoriser la rotation du disque sautant dans ledit sens de rotation lors de la phase de saut et pour empêcher une rotation du disque sautant au moins dans ledit sens de rotation lors de la phase de repos.For this purpose, the invention relates to a timepiece mechanism comprising a jumping disk arranged to be able to jump by one step in a direction of rotation, a device for driving the jumping disk comprising a rotary drive member arranged to be, with the jumping disk, fixed during a rest phase, and to, during a jump phase, drive the jumping disk by one step in a jumping manner in said direction of rotation, and a device for blocking the jumping disk arranged to allow rotation of the jumping disk in said direction of rotation during the jump phase and to prevent rotation of the jumping disk at least in said direction of rotation during the rest phase.

Selon l'invention, ledit dispositif de blocage comprend une bascule de blocage positionnée entre le disque sautant et l'organe entraîneur, et de préférence montée libre en rotation, ladite bascule de blocage comprenant une tête et étant agencée pour pouvoir évoluer entre une position haute de blocage dans laquelle ladite tête est maintenue par un bord périphérique extérieur de l'organe entraineur tout en étant apte à constituer une butée en rotation dans ledit sens de rotation pour le disque sautant lors de la phase de repos, et une position basse de libération dans laquelle ladite tête est engagée dans une encoche prévue sur ledit bord périphérique extérieur de l'organe entraineur afin d'être dégagée du disque sautant, ladite encoche étant agencée pour être au moins en partie positionnée en vis-à-vis de la tête de la bascule de blocage au début de la phase de saut de sorte que le disque sautant est libre en rotation, et pour ne plus être en vis-à-vis de ladite tête de la bascule de blocage après la phase de saut, ou de préférence avant la fin de la phase de saut, afin que la bascule de blocage retrouve sa position haute de blocage.According to the invention, said locking device comprises a locking rocker positioned between the jumping disk and the drive member, and preferably mounted free to rotate, said locking rocker comprising a head and being arranged to be able to move between a high locking position in which said head is held by an outer peripheral edge of the drive member while being able to constitute a rotation stop in said direction of rotation for the jumping disk during the rest phase, and a low release position in which said head is engaged in a notch provided on said outer peripheral edge of the drive member in order to be released from the jumping disk, said notch being arranged to be at least partly positioned opposite the head of the locking lever at the start of the jumping phase so that the jumping disk is free to rotate, and to no longer be opposite said head of the locking lever after the jumping phase, or preferably before the end of the jumping phase, so that the locking lever returns to its high locking position.

Ainsi, le disque sautant est libre en rotation dans un sens le temps de la phase de saut, et est bloqué en rotation dans le même sens au moins lors de la phase de repos, empêchant tout saut intempestif dans ledit sens en cas de choc par exemple. De plus, dans un mode de réalisation préférée, le dispositif de blocage est actif avant la fin de la phase de saut, une fois un saut effectué, de sorte qu'un double saut du disque sautant est impossible. Ainsi, le dispositif de blocage selon l'invention fait office à la fois d'anti-double saut et de dispositif antichoc.Thus, the jumping disk is free to rotate in one direction during the jumping phase, and is blocked in rotation in the same direction at least during the rest phase, preventing any untimely jump in said direction in the event of an impact for example. Furthermore, in a preferred embodiment, the blocking device is active before the end of the jumping phase, once a jump has been performed, so that a double jump of the jumping disk is impossible. Thus, the blocking device according to the invention acts as both an anti-double jump and an anti-shock device.

Selon un mode de réalisation préféré, le disque sautant est un disque des heures et l'organe entraineur est entraîné via une roue des heures.According to a preferred embodiment, the jumping disc is an hour disc and the drive member is driven via an hour wheel.

Brève description des dessinsBrief description of the drawings

D'autres caractéristiques et avantages de la présente invention apparaîtront à la lecture de la description détaillée suivante d'un mode de réalisation de l'invention, donné à titre d'exemple non limitatif, et faite en référence aux dessins annexés dans lesquels :

  • les figures 1 à 7 représentent une vue de dessus d'un mécanisme horloger selon l'invention dans différentes positions sur un cycle entre deux phases de repos ; et
  • la figure 8 est une vue de dessus du mécanisme horloger selon l'invention en cas de choc susceptible d'entraîner une rotation du disque sautant dans un sens et dans l'autre.
Other features and advantages of the present invention will become apparent upon reading the following detailed description of an embodiment of the invention, given as a non-limiting example, and made with reference to the appended drawings in which:
  • THE Figures 1 to 7 represent a top view of a clock mechanism according to the invention in different positions on a cycle between two rest phases; and
  • there figure 8 is a top view of the clock mechanism according to the invention in the event of an impact likely to cause the jumping disk to rotate in one direction and then the other.

Modes de réalisation de l'inventionEmbodiments of the invention

La présente invention concerne un mécanisme horloger à disque sautant et sera décrite ci-dessous en référence à un mécanisme horloger destiné à être mis en oeuvre plus particulièrement dans un mécanisme d'heures sautantes. En référence à la figure 1, ce mécanisme, représenté dans sa position en phase de repos, comprend un disque des heures sautant 1 représenté partiellement sur les figures et agencé pour pouvoir sauter d'un pas dans un sens de rotation lors d'une phase de saut, soit ici pour sauter d'une heure dans le sens horaire. Plus spécifiquement, le disque sautant 1 présente la forme d'un anneau de centre A, vide en son centre, définissant une périphérie intérieure 1a et sur lequel sont répartis de manière régulière et ordonnée les douze chiffres des heures de 1 à 12. Sur sa périphérie intérieure 1a, sont prévus au moins autant de crans 2 que de sauts à effectuer sur un tour. De préférence, il est prévu autant de crans 2 que de sauts à effectuer sur un tour soit ici 12 crans 2, un cran 2 correspondant à une heure affichée sur le disque sautant 1. Le disque sautant 1 est monté sur un bâti du mécanisme, libre en rotation de centre A. Il est guidé en rotation par exemple par des galets 4. Toute autre moyen de guidage peut être utilisé.The present invention relates to a jumping disc clock mechanism and will be described below with reference to a clock mechanism intended to be implemented more particularly in a jumping hour mechanism. With reference to the figure 1 , this mechanism, shown in its position in the rest phase, comprises a jumping hour disk 1 partially shown in the figures and arranged to be able to jump one step in a direction of rotation during a jump phase, i.e. here to jump one hour clockwise. More specifically, the jumping disk 1 has the shape of a ring with center A, empty in its center, defining an inner periphery 1a and on which the twelve hour digits from 1 to 12 are distributed in a regular and orderly manner. On its inner periphery 1a, there are provided at least as many notches 2 as jumps to be made in one revolution. Preferably, there are as many notches 2 as there are jumps to be made in one revolution, i.e. here 12 notches 2, a notch 2 corresponding to a time displayed on the jumping disk 1. The jumping disk 1 is mounted on a frame of the mechanism, free to rotate with center A. It is guided in rotation for example by rollers 4. Any other means of guidance can be used.

Au centre du disque sautant 1 est positionné un dispositif d'entrainement 5 du disque sautant 1 qui comprend un pignon d'entrainement 6 en prise avec une roue des heures 7 du mouvement de la pièce d'horlogerie et une étoile d'entrainement 8 solidaire dudit pignon d'entrainement 6. L'étoile d'entrainement 8 comprend des dents 8a, ici au nombre de quatre, dont le rôle sera décrit ci-après. La roue des heures 7 fait un tour en 12 heures, ou en 24h selon une autre variante, et entraine lentement le pignon d'entrainement 6 et donc l'étoile d'entrainement 8 pour qu'elle tourne de 45° par heure dans le sens antihoraire.At the center of the jumping disk 1 is positioned a drive device 5 of the jumping disk 1 which comprises a drive pinion 6 meshing with an hour wheel 7 of the movement of the timepiece and a drive star 8 secured to said drive pinion 6. The drive star 8 comprises teeth 8a, here four in number, the role of which will be described below. The hour wheel 7 makes one revolution in 12 hours, or in 24 hours according to another variant, and slowly drives the drive pinion 6 and therefore the drive star 8 so that it rotates 45° per hour in the counterclockwise direction.

Le dispositif d'entrainement 5 comprend également un organe entraineur 10 rotatif, libre en rotation de centre A. L'organe entraineur 10 est monté sur le bâti du mécanisme au même niveau que le disque sautant 1 et concentriquement audit disque sautant 1. L'organe entraineur 10 est guidé en rotation par exemple par des galets 12. Toute autre moyen de guidage peut être utilisé.The drive device 5 also comprises a rotary drive member 10, free to rotate about center A. The drive member 10 is mounted on the frame of the mechanism at the same level as the jumping disk 1 and concentrically with said jumping disk 1. The drive member 10 is guided in rotation for example by rollers 12. Any other guiding means can be used.

L'organe entraineur 10 se présente sous la forme générale d'un anneau définissant un bord périphérique intérieur 10a et un bord périphérique extérieur 10b.The drive member 10 has the general form of a ring defining an inner peripheral edge 10a and an outer peripheral edge 10b.

L'organe entraineur 10 est associé à un organe de rappel 11 élastique, tel qu'un ressort de rappel, ledit organe entraineur 10 étant agencé pour être entraîné en rotation dans l'autre sens de rotation, ici le sens antihoraire, en armant son organe de rappel 11 lors d'une phase d'armage, indépendamment du disque sautant 1, et pour, lors de la phase de saut, tourner dans le sens de rotation du saut, ici le sens horaire, sous l'effet de son organe de rappel 11 en entrainant le disque sautant 1 d'un pas de manière sautante dans ledit sens de rotation du saut.The drive member 10 is associated with an elastic return member 11, such as a return spring, said drive member 10 being arranged to be driven in rotation in the other direction of rotation, here the counterclockwise direction, by arming its return member 11 during an arming phase, independently of the jumping disk 1, and to, during the jumping phase, rotate in the direction of rotation of the jump, here the clockwise direction, under the effect of its return member 11 by driving the jumping disk 1 by one step in a jumping manner in said direction of rotation of the jump.

A cet effet, pour l'entrainement de l'organe entraineur 10 dans le sens antihoraire pour la phase d'armage, il est prévu, sur le bord périphérique intérieur 10a de l'organe entraineur 10, un ergot 14 agencé pour pouvoir être en prise avec une dent 8a de l'étoile d'entrainement 8. Ainsi, une rotation de l'étoile d'entrainement 8 dans l'autre sens de rotation, ici dans le sens antihoraire, entraine, via un contact entre une dent 8a et l'ergot 14, une rotation de l'organe entraineur 10 dans ledit sens antihoraire au cours de laquelle son organe de rappel 11 élastique est progressivement armé. Cette phase correspond à la phase d'armage.For this purpose, for driving the drive member 10 in the counterclockwise direction for the winding phase, there is provided, on the inner peripheral edge 10a of the drive member 10, a lug 14 arranged to be able to be engaged with a tooth 8a of the drive star 8. Thus, a rotation of the drive star 8 in the other direction of rotation, here in the counterclockwise direction, causes, via a contact between a tooth 8a and the lug 14, a rotation of the drive member 10 in said counterclockwise direction during which its elastic return member 11 is progressively wound. This phase corresponds to the winding phase.

Les dents 8a de l'étoile d'entrainement 8 et l'ergot 14 sont configurés de sorte qu'une fois la rotation dans le sens antihoraire nécessaire à l'armage de l'organe de rappel 11 effectuée, la dent 8a continue à tourner dans le sens antihoraire en n'étant plus en prise avec l'ergot 14. Ainsi, l'organe entraineur 10 est libéré pour la phase de saut et son organe de rappel 11 libère toute son énergie en rappelant instantanément l'organe entraineur 10 dans une rotation dans le sens horaire afin qu'il retrouve sa position lors de la phase de repos. Les dents 8a sont également configurées pour ne pas entraîner l'organe entraineur 10 lors de la phase de repos, ledit organe entraineur 10 étant fixe lors de ladite phase de repos. Le disque sautant 1 est fixe lors des phases de repos et d'armage.The teeth 8a of the drive star 8 and the lug 14 are configured so that once the counterclockwise rotation necessary for winding the return member 11 has been performed, the tooth 8a continues to rotate counterclockwise while no longer being engaged with the lug 14. Thus, the drive member 10 is released for the jump phase and its return member 11 releases all of its energy by instantly returning the drive member 10 in a clockwise rotation so that it returns to its position during the rest phase. The teeth 8a are also configured so as not to drive the drive member 10 during the rest phase, said drive member 10 being fixed during said rest phase. The jumping disk 1 is fixed during the rest and winding phases.

Pour l'entrainement du disque sautant 1 d'un pas de manière sautante dans le sens de rotation du saut lors de la phase de saut, il est prévu, sur le bord périphérique extérieur 10b de l'organe entraineur 10, un doigt flexible 16, par exemple un doigt monté sur une lame ressort solidaire de l'organe entraineur 10. Le doigt flexible 16 est agencé pour s'escamoter au contact d'un cran 2' du disque sautant 1 lorsque l'organe entraineur 10 est entraîné dans l'autre sens de rotation, ici le sens antihoraire, lors de la phase d'armage, et pour entraîner le disque sautant 1 d'un pas dans le sens de rotation du saut, ici le sens horaire, en poussant ledit cran 2' du disque sautant 1 dans ledit sens de rotation, ici le sens horaire, lorsque l'organe entraineur 10 tourne dans ledit sens horaire pendant la phase de saut, rappelé dans sa position de repos par son organe de rappel 11. Avantageusement, le doigt flexible 16 présente à son extrémité arrière, dans le sens horaire, un plan incliné pour faciliter son passage derrière le cran 2' pendant la phase d'armage, et à son extrémité avant, une face droite configurée pour venir en regard du cran 2' au début de la phase de saut. Lors de la phase de saut, la rotation soudaine de l'organe entraineur 10, libéré de l'étoile 8 et ramené par son organe de rappel 11, entraine une rotation soudaine du disque sautant 1 poussé par le doigt flexible 16, en réalisant ainsi un saut de l'heure.For driving the jumping disk 1 by one step in a jumping manner in the direction of rotation of the jump during the jumping phase, a flexible finger 16 is provided on the outer peripheral edge 10b of the drive member 10, for example a finger mounted on a spring blade secured to the drive member 10. The flexible finger 16 is arranged to retract upon contact with a notch 2' of the jumping disk 1 when the drive member 10 is driven in the other direction of rotation, here the counterclockwise direction, during the winding phase, and to drive the jumping disk 1 by one step in the direction of rotation of the jump, here the clockwise direction, by pushing said notch 2' of the jumping disk 1 in said direction of rotation, here the clockwise direction, when the drive member 10 rotates in said clockwise direction during the winding phase, returned to its rest position by its return member 11. Advantageously, the flexible finger 16 has at its rear end, in the clockwise direction, an inclined plane to facilitate its passage behind the notch 2' during the winding phase, and at its front end, a straight face configured to come opposite the notch 2' at the start of the winding phase. During the jump phase, the sudden rotation of the drive member 10, released from the star 8 and returned by its return member 11, causes a sudden rotation of the jumping disk 1 pushed by the flexible finger 16, thus achieving a jump of the hour.

Afin de limiter la rotation de l'organe entraineur 10, ce dernier est agencé pour se déplacer entre deux butées dont l'une correspond à la position de l'organe entraineur 10 lors de la phase de repos et l'autre correspond à la position de l'organe entraineur 10 à la fin de la phase d'armage. A cet effet, l'organe entraineur 10 présente une ouverture oblongue 18 dans laquelle circule une goupille 20 solidaire du bâti. Le bord arrière 18a dans le sens horaire de l'ouverture 18 constitue pour la goupille 20 une butée lorsque l'organe entraineur 10 arrive dans sa position lors de la phase de repos et le bord avant 18b dans le sens horaire pourrait constituer pour la goupille 20 une butée lorsque l'organe entraineur 10 arrive dans sa position à la fin de la phase d'armage. De préférence, la butée avant 18b détermine un jeu avec la position de l'organe entraineur 10 à la fin de la phase d'armage. En raison d'un tel jeu, la butée avant 18b pourrait n'entrer en contact avec la goupille 20 qu'en cas de chocs lors de la phase d'armage. Ainsi, l'organe entraineur 10 est limité en déplacement par au moins une parmi les deux butées 18a, 18b.In order to limit the rotation of the drive member 10, the latter is arranged to move between two stops, one of which corresponds to the position of the drive member 10 during the rest phase and the other corresponds to the position of the drive member 10 at the end of the arming phase. For this purpose, the drive member 10 has an oblong opening 18 in which a pin 20 integral with the frame circulates. The rear edge 18a in the clockwise direction of the opening 18 constitutes a stop for the pin 20 when the drive member 10 reaches its position during the rest phase and the front edge 18b in the clockwise direction could constitute a stop for the pin 20 when the drive member 10 reaches its position at the end of the arming phase. Preferably, the front stop 18b determines a clearance with the position of the drive member 10 at the end of the arming phase. Due to such a clearance, the front stop 18b could only come into contact with the pin 20 in the event of impacts during the arming phase. Thus, the drive member 10 is limited in movement by at least one of the two stops 18a, 18b.

Le mécanisme horloger comprend également un dispositif de blocage du disque sautant 1 agencé pour autoriser la rotation du disque sautant 1 dans le sens de rotation du saut, soit le sens horaire, lors de la phase de saut et pour empêcher une rotation du disque sautant 1 au moins dans ledit sens de rotation lors de la phase de repos afin d'empêcher tout saut intempestif, tel qu'un saut en cas de chocs ou un double saut.The clockwork mechanism also comprises a device for blocking the jumping disc 1 arranged to allow the rotation of the jumping disc 1 in the direction of rotation of the jump, i.e. clockwise, during the jump phase and to prevent rotation of the jumping disk 1 at least in said direction of rotation during the rest phase in order to prevent any untimely jump, such as a jump in the event of impacts or a double jump.

Conformément à la présente invention, ledit dispositif de blocage comprend une bascule de blocage 22 montée entre le disque sautant 1 et l'organe entraineur 10 sur un seul et même niveau dans l'exemple représenté. La bascule de blocage est montée libre en rotation autour de l'axe B et est agencée pour pouvoir évoluer librement entre une position de blocage, dite position haute de blocage, dans laquelle la bascule de blocage 22, en particulier sa tête 25, est maintenue par le bord périphérique extérieur 10b de l'organe d'entraineur 10 tout en étant apte à constituer une butée en rotation dans le sens de rotation du saut, ici le sens horaire, pour le disque sautant 1 lors de la phase de repos, et une position de libération, dite position basse de libération, dans laquelle la bascule de blocage 22, en particulier sa tête 25 est engagée dans une encoche 24 prévue sur ledit bord périphérique extérieur 10b de l'organe entraineur 10 de sorte que ladite bascule de blocage, en particulier sa tête 25, est dégagée du disque sautant 1 au moins au début de la phase de saut. A cet effet, ladite encoche 24 est agencée pour, lors de la rotation de l'organe entraineur 10 dans l'autre sens de rotation, ici le sens antihoraire, être au moins en partie positionnée en vis-à-vis de la tête 25 de la bascule de blocage 22 au début de la phase de saut de sorte que le disque sautant 1 est libre en rotation, et pour, suite à la rotation de l'organe entraineur 10 dans le sens de rotation du saut, ici le sens horaire, ne plus être en vis-à-vis de la tête 25 de la bascule de blocage 22 après la phase de saut, ou de préférence avant la fin de la phase de saut et après le début de la phase de saut, afin que la bascule de blocage 22 retrouve sa position haute de blocage. Cela signifie que l'encoche 24 n'est pas en vis-à-vis de la tête 25 de la bascule de blocage 22 lors de la phase de repos avant ou après la phase de saut, ou de préférence lors de la phase de repos et après le début de la phase de saut jusqu'à la fin de la phase de saut, l'encoche 24 étant en vis-à-vis de la tête 25 au début de la phase de saut.According to the present invention, said locking device comprises a locking lever 22 mounted between the jumping disk 1 and the drive member 10 on a single level in the example shown. The locking lever is mounted to rotate freely about the axis B and is arranged to be able to move freely between a locking position, called the high locking position, in which the locking lever 22, in particular its head 25, is held by the outer peripheral edge 10b of the drive member 10 while being able to constitute a rotation stop in the direction of rotation of the jump, here the clockwise direction, for the jumping disk 1 during the rest phase, and a release position, called the low release position, in which the locking lever 22, in particular its head 25, is engaged in a notch 24 provided on said outer peripheral edge 10b of the drive member 10 so that said locking lever, in particular its head 25, is disengaged from the jumping disk 1 at least at the start of the jump phase. For this purpose, said notch 24 is arranged so that, during rotation of the drive member 10 in the other direction of rotation, here the counterclockwise direction, it is at least partly positioned opposite the head 25 of the locking lever 22 at the start of the jump phase so that the jumping disk 1 is free to rotate, and so that, following rotation of the drive member 10 in the direction of rotation of the jump, here the clockwise direction, it is no longer opposite the head 25 of the locking lever 22 after the jump phase, or preferably before the end of the jump phase and after the start of the jump phase, so that the locking lever 22 returns to its high locking position. This means that the notch 24 is not opposite the head 25 of the locking lever 22 during the rest phase before or after the jump phase, or preferably during the rest phase and after the start of the jump phase until the end of the jump phase, the notch 24 being opposite the head 25 at the start of the jump phase.

De préférence, la bascule de blocage 22 est positionnée entre la périphérie intérieure 1a du disque sautant 1 et le bord périphérique extérieur 10b de l'organe entraineur 10, le bras de la bascule de blocage 22 s'étendant approximativement concentriquement au disque sautant 1 et à l'organe entraineur 10.Preferably, the locking lever 22 is positioned between the inner periphery 1a of the jumping disk 1 and the outer peripheral edge 10b of the drive member 10, the arm of the locking lever 22 extending approximately concentrically to the jumping disk 1 and to the drive member 10.

A son extrémité libre, la bascule de blocage 22 comprend une tête 25 présentant un talon 26 agencé pour pouvoir coopérer avec l'un des crans 2 du disque sautant 1 lorsqu'elle est dans sa position haute de blocage. La tête 25 comprend également à l'opposé du talon 26, un bec 28 agencé pour coopérer avec le bord périphérique extérieur 10b de l'organe entraineur 10 lorsque la bascule de blocage 22 est dans sa position haute et pour coopérer avec l'encoche 24 de l'organe entraineur 10 lorsque la bascule de blocage 22 est dans sa position basse de libération.At its free end, the locking lever 22 comprises a head 25 having a heel 26 arranged to be able to cooperate with one of the notches 2 of the jumping disk 1 when it is in its high locking position. The head 25 also comprises, opposite the heel 26, a beak 28 arranged to cooperate with the outer peripheral edge 10b of the drive member 10 when the locking lever 22 is in its high position and to cooperate with the notch 24 of the drive member 10 when the locking lever 22 is in its low release position.

Les crans 2 du disque sautant 1, le talon 26 et le bec 28 de la bascule de blocage sont dimensionnés pour que, lorsque la bascule de blocage 22 est dans sa positon haute de blocage, un cran 2 du disque sautant 1 bute contre le talon 26 en cas de rotation du disque sautant tandis que le bec 28 est maintenu en position par le bord périphérique extérieur 10b de l'organe entraineur 10, et pour que, lorsque la bascule de blocage 22 est dans sa position basse de libération, l'engagement du bec 28 dans l'encoche 24 permet à la bascule de blocage 22 de pivoter suffisamment autour de son axe B de manière à éloigner son talon 26 des crans 2 du disque sautant 1. Dans cette position, ledit disque sautant 1, en particulier chacun de ses crans 2, peut passer au-dessus de la bascule de blocage 22 et peut tourner librement.The notches 2 of the jumping disk 1, the heel 26 and the beak 28 of the locking lever are dimensioned so that, when the locking lever 22 is in its high locking position, a notch 2 of the jumping disk 1 abuts against the heel 26 in the event of rotation of the jumping disk while the beak 28 is held in position by the outer peripheral edge 10b of the drive member 10, and so that, when the locking lever 22 is in its low release position, the engagement of the beak 28 in the notch 24 allows the locking lever 22 to pivot sufficiently about its axis B so as to move its heel 26 away from the notches 2 of the jumping disk 1. In this position, said jumping disk 1, in particular each of its notches 2, can pass above the locking lever 22 and can rotate freely.

De préférence, l'encoche 24 est dimensionnée et positionnée sur le bord périphérique extérieur 10b de l'organe entraineur 10 afin que le bec 28 de la tête 25 de la bascule de blocage 22 tombe dans l'encoche 24 lors de la phase d'armage, par exemple au début de la phase d'armage, et arrive sensiblement à l'extrémité avant de ladite encoche 24 dans le sens de rotation du saut, ici le sens horaire, à la fin de la phase d'armage, de sorte que le talon 26 de la tête 25 de la bascule de blocage 22 est à distance d'un cran 2 pendant la phase d'armage, et afin que le bec 28 de la tête 25 de la bascule de blocage 22 soit positionné sensiblement à l'extrémité arrière de l'encoche 24 dans ledit sens de rotation, ici le sens horaire, dès que le cran 2 qui était bloqué par la bascule de blocage 22 est passé. Ainsi, la bascule de blocage 22 sort rapidement de l'encoche 24 et retrouve sa position haute de blocage au cours de la phase de saut afin de pouvoir bloquer le cran 2 suivant avant que l'organe entraineur 10 n'atteigne sa position correspondant à la phase de repos.Preferably, the notch 24 is sized and positioned on the outer peripheral edge 10b of the drive member 10 so that the beak 28 of the head 25 of the locking lever 22 falls into the notch 24 during the arming phase, for example at the start of the arming phase, and arrives substantially at the front end of said notch 24 in the direction of rotation of the jump, here the clockwise direction, at the end of the arming phase, so that the heel 26 of the head 25 of the locking lever 22 is at a distance of a notch 2 during the arming phase, and so that the beak 28 of the head 25 of the locking lever 22 is positioned substantially at the rear end of the notch 24 in said direction of rotation, here the clockwise direction, as soon as the notch 2 which was blocked by the locking lever 22 has passed. Thus, the locking lever 22 quickly leaves the notch 24 and returns to its high locking position during the jump phase in order to be able to lock the next notch 2 before the drive member 10 reaches its position corresponding to the rest phase.

Cela permet de garantir d'une part que la bascule de blocage 22 est dans sa position basse à la fin de la phase d'armage, avant le début de la phase de saut, de manière à assurer la libre rotation du disque sautant 1 pour la phase de saut. D'autre part, cela permet de s'assurer que la bascule de blocage 22 a repris sa position haute de blocage une fois le cran 2 concerné passé afin de bloquer le cran 2 suivant et empêcher tout double saut.This ensures on the one hand that the locking lever 22 is in its low position at the end of the arming phase, before the start of the jump phase, so as to ensure free rotation of the jumping disk 1 for the jump phase. On the other hand, this ensures that the locking lever 22 has returned to its high locking position once the relevant notch 2 has been passed in order to block the next notch 2 and prevent any double jump.

Une goupille 30 est prévue sur le bâti à proximité de la tête 25 de la bascule de blocage 22. Ladite goupille 30 peut être destinée à recevoir, à son extrémité libre, un organe d'un diamètre permettant de recouvrir au moins partiellement la tête 25 de la bascule de blocage 22 afin d'empêcher la bascule de blocage 22 de se soulever et de la maintenir dans son plan de travail. De préférence, la goupille 30 présente, en son extrémité libre, le diamètre précité.A pin 30 is provided on the frame near the head 25 of the locking lever 22. Said pin 30 may be intended to receive, at its free end, a member of a diameter making it possible to at least partially cover the head 25 of the locking lever 22 in order to prevent the locking lever 22 from lifting and to keep it in its working plane. Preferably, the pin 30 has, at its free end, the aforementioned diameter.

D'une manière avantageuse, le dispositif de blocage comprend également un sautoir 32 agencé pour laisser libre en rotation le disque sautant 1 dans le sens de rotation du saut, ici le sens horaire, lors de la phase de saut et pour bloquer ledit disque sautant 1 dans l'autre sens de rotation, ici le sens antihoraire, lors de la phase de repos.Advantageously, the locking device also comprises a jumper 32 arranged to allow the jumping disk 1 to rotate freely in the direction of rotation of the jump, here the clockwise direction, during the jump phase and to block said jumping disk 1 in the other direction of rotation, here the counterclockwise direction, during the rest phase.

A cet effet, ledit sautoir 32 est monté, pivotant en C, sur le bâti. Il est associé à un ressort de rappel 34. Le sautoir 32 présente à l'avant, dans le sens de rotation du saut, ici le sens horaire, un flanc avant 36 qui est taillé pour être sensiblement perpendiculaire au cran 2" du disque sautant 1 situé à l'avant du sautoir 32 dans ledit sens de rotation. En cas de choc, le sautoir 32 permet d'empêcher une rotation du disque sautant 1 dans le sens antihoraire, le cran 2" étant bloqué par son flanc avant 36.For this purpose, said jumper 32 is mounted, pivoting at C, on the frame. It is associated with a return spring 34. The jumper 32 has at the front, in the direction of rotation of the jump, here the clockwise direction, a front flank 36 which is cut to be substantially perpendicular to the notch 2" of the jumping disk 1 located at the front of the jumper 32 in said direction of rotation. In the event of an impact, the jumper 32 makes it possible to prevent rotation of the jumping disk 1 in the counterclockwise direction, the notch 2" being blocked by its front flank 36.

Le sautoir 32 présente également un flanc montant 38 et un flanc descendant 40 formés de plans inclinés qui permettent le déplacement du sautoir 32 par les crans 2 du disque sautant 1. En particulier, le flanc montant 38 permet, par le biais du cran 2" du disque sautant 1 qui vient au contact du sautoir 32 au début de la phase de saut de déplacer ledit sautoir 32, à l'encontre de son ressort de rappel 34, en l'écartant du disque sautant 1, autorisant la rotation du disque sautant 1 dans le sens horaire. Le flanc descendant 40 permet de terminer la rotation du disque sautant 1 en utilisant l'énergie élastique du ressort de rappel du sautoir 34 lorsque ce dernier revient en position de repos. Plus précisément, lorsque le cran 2" du disque sautant 1 qui a déplacé le sautoir 32 arrive au contact du flanc descendant 40 du sautoir 32, ledit flanc descendant 40, remontant en position de repos sous l'effet de la force de rappel du ressort du sautoir, pousse le disque sautant 1 par glissement de son plan incliné avec le cran 2" du disque sautant 1. De ce fait, le flanc descendant 40 permet de terminer la rotation horaire du disque sautant 1 afin de le repositionner dans sa position de repos, le flanc du cran 2" étant alors au contact du flanc avant 36.The jumper 32 also has a rising flank 38 and a falling flank 40 formed by inclined planes which allow the movement of the jumper 32 by the notches 2 of the jumping disk 1. In particular, the rising flank 38 allows, by means of the notch 2" of the jumping disk 1 which comes into contact with the jumper 32 at the start of the jumping phase, to move said jumper 32, against its return spring 34, by moving it away from the jumping disk 1, authorizing the rotation of the jumping disk 1 in the clockwise direction. The falling flank 40 allows the rotation of the jumping disk 1 to be completed by using the elastic energy of the return spring of the jumper 34 when the latter returns to the rest position. More precisely, when the notch 2" of the jumping disk 1 which has moved the jumper 32 comes into contact with the descending flank 40 of the jumper 32, said descending flank 40, rising to the rest position under the effect of the return force of the jumper spring, pushes the jumping disk 1 by sliding its inclined plane with the notch 2" of the jumping disk 1. As a result, the descending flank 40 makes it possible to complete the clockwise rotation of the jumping disk 1 in order to reposition it in its rest position, the flank of the notch 2" then being in contact with the front flank 36.

Le sautoir 32 est configuré pour que, dans la position correspondant à la phase de repos , son flanc avant 36 soit au contact d'un flanc d'un cran 2", et pour que le cran 2 qui va suivre, dans le sens de rotation du saut, ici le sens horaire, soit sensiblement au contact du flanc montant 38.The jumper 32 is configured so that, in the position corresponding to the rest phase, its front flank 36 is in contact with a flank of a notch 2", and so that the notch 2 which will follow, in the direction of rotation of the jump, here the clockwise direction, is substantially in contact with the rising flank 38.

Le fonctionnement standard du mécanisme horloger selon l'invention est décrit en relation avec les figures 1 à 7.The standard operation of the clock mechanism according to the invention is described in relation to the Figures 1 to 7 .

Lors d'une phase de repos illustrée par la figure 1, l'organe entraineur 10 et le disque sautant 1 sont fixes. La goupille 20 est en butée contre le bord arrière 18a de l'ouverture 18 de l'organe entraineur 10. Le sautoir 32 immobilise le disque sautant 1 dans des conditions normales d'utilisation du mécanisme. La bascule de blocage 22 est maintenue dans sa position haute de blocage par son bec 28 en appui sur le bord périphérique extérieur 10b de l'organe entraineur 10, son talon 26 empêchant le cran 2 du disque sautant 1 de passer au-dessus de la bascule de blocage 22. Une dent 8a de l'étoile d'entrainement 8 entrainée par la roue des heures s'approche de l'ergot 14 de l'organe entraineur 10 pour enclencher la phase d'armage, représentée sur la figure 2.During a rest phase illustrated by the figure 1 , the drive member 10 and the jumping disk 1 are fixed. The pin 20 abuts against the rear edge 18a of the opening 18 of the drive member 10. The jumper 32 immobilizes the jumping disk 1 under normal conditions of use of the mechanism. The locking lever 22 is held in its high locking position by its beak 28 resting on the outer peripheral edge 10b of the drive member 10, its heel 26 preventing the notch 2 of the jumping disk 1 from passing above the locking lever 22. A tooth 8a of the drive star 8 driven by the hour wheel approaches the lug 14 of the drive member 10 to initiate the winding phase, shown in the figure 2 .

Lors de la phase d'armage, l'organe entraineur 10 est entraîné, via son ergot 14, par la dent 8a de l'étoile d'entrainement 8 dans le sens de rotation contraire au sens de rotation du saut, soit ici dans le sens antihoraire. Cela a pour effet d'armer son organe de rappel 11 élastique. Son doigt flexible 16 s'escamote au contact d'un cran 2' du disque sautant 1 qui reste fixe pendant la phase d'armage. Du fait de la rotation dans le sens antihoraire de l'organe entraineur 10, son encoche 24 vient en vis-à-vis du bec 28 de la bascule de blocage 22. Celle-ci a alors la possibilité de basculer en direction de l'encoche 24 dans sa position basse de libération, par exemple par gravité, de sorte que son talon 26 s'éloigne du cran 2 du disque sautant 1. Le disque sautant 1 n'est plus bloqué par la bascule de blocage 22. A la fin de la phase d'armage, le bec 28 de la bascule de blocage 22 se situe en vis-à-vis de l'encoche 24, dans le sens horaire, et la goupille 20 est, de préférence, à proximité du bord avant 18b de l'ouverture 18 de l'organe entraineur 10 de manière à laisser un jeu entre la goupille et le bord avant 18b de l'ouverture 18 lorsque l'organe entraineur 10 est complètement armé.During the arming phase, the drive member 10 is driven, via its lug 14, by the tooth 8a of the drive star 8 in the direction of rotation opposite to the direction of rotation of the jump, i.e. here in the counterclockwise direction. This has the effect of arming its elastic return member 11. Its flexible finger 16 retracts upon contact with a notch 2' of the jumping disk 1 which remains fixed during the arming phase. Due to the counterclockwise rotation of the drive member 10, its notch 24 comes opposite the beak 28 of the locking lever 22. The latter then has the possibility of tilting in direction of the notch 24 in its low release position, for example by gravity, so that its heel 26 moves away from the notch 2 of the jumping disk 1. The jumping disk 1 is no longer blocked by the blocking lever 22. At the end of the arming phase, the beak 28 of the blocking lever 22 is located opposite the notch 24, in a clockwise direction, and the pin 20 is, preferably, close to the front edge 18b of the opening 18 of the drive member 10 so as to leave a clearance between the pin and the front edge 18b of the opening 18 when the drive member 10 is fully armed.

Au début de la phase de saut, en référence à la figure 3, la dent 8a de l'étoile 8 poursuit sa rotation dans le sens antihoraire de sorte qu'elle ne peut plus entraîner l'ergot 14 de l'organe entraineur 10. Celui-ci est alors libéré et tourne dans le sens horaire, ramené par son organe de rappel 11 élastique de sorte que son doigt flexible 16 entraine le cran 2' du disque sautant 1 dans le sens horaire. Si la bascule de blocage 22 est déjà tombée dans l'encoche 24 pendant la phase d'armage, le disque sautant 1 peut tourner librement dans le sens horaire, en déplaçant le sautoir 32 par son cran 2" en appui sur le flanc montant 38. Si la bascule de blocage 22 n'était pas encore tombée dans l'encoche 24 par gravité, le cran 2 du disque sautant 1 entraîné dans le sens horaire par l'organe entraineur 10 déplace la bascule de blocage 22 par son talon 26, le bec 28 de ladite bascule de blocage 22 se trouvant en vis-à-vis de l'encoche 24 n'étant plus maintenu par le bord périphérique extérieur 10b de l'organe entraineur 10. Le cran 2 du disque sautant 1, ayant fait tomber la bascule de blocage 22 dans l'encoche 24, peut passer au-dessus de ladite bascule de blocage 22 qui a suffisamment pivoté autour de son axe B pour laisser libre la rotation du disque sautant 1 dans le sens horaire.At the beginning of the jump phase, in reference to the figure 3 , the tooth 8a of the star 8 continues its rotation in the counterclockwise direction so that it can no longer drive the lug 14 of the drive member 10. The latter is then released and turns in the clockwise direction, brought back by its elastic return member 11 so that its flexible finger 16 drives the notch 2' of the jumping disk 1 in the clockwise direction. If the locking lever 22 has already fallen into the notch 24 during the winding phase, the jumping disk 1 can rotate freely in the clockwise direction, moving the jumper 32 by its notch 2" resting on the rising flank 38. If the locking lever 22 has not yet fallen into the notch 24 by gravity, the notch 2 of the jumping disk 1 driven in the clockwise direction by the drive member 10 moves the locking lever 22 by its heel 26, the beak 28 of said locking lever 22 being opposite the notch 24 no longer being held by the outer peripheral edge 10b of the drive member 10. The notch 2 of the jumping disk 1, having caused the locking lever 22 to fall into the notch 24, can pass over said locking lever 22 which has pivoted sufficiently around its axis B to allow free rotation of the jumping disk 1 in a clockwise direction.

En référence à la figure 4, la phase de saut se poursuit, l'organe entraineur 10 tournant toujours dans le sens horaire sous l'effet de son organe de rappel 11 élastique. Son doigt flexible 16 entraine toujours le cran 2' du disque sautant 1 de sorte que le disque sautant 1 poursuit sa rotation dans le sens horaire en continuant à déplacer le sautoir 32 à l'encontre du ressort de rappel 34 tendant à le ramener dans sa position de repos. L'organe entraineur 10 ayant tourné dans le sens horaire, le bec 28 de la bascule de blocage 22 arrive à l'arrière de l'encoche 24, dans le sens horaire, prêt à sortir de ladite encoche 24.In reference to the figure 4 , the jumping phase continues, the drive member 10 still rotating clockwise under the effect of its elastic return member 11. Its flexible finger 16 still drives the notch 2' of the jumping disk 1 so that the jumping disk 1 continues its rotation clockwise while continuing to move the jumper 32 against the return spring 34 tending to return it to its rest position. The drive member 10 having rotated clockwise, the beak 28 of the locking lever 22 arrives at the rear of the notch 24, in a clockwise direction, ready to come out of said notch 24.

En référence à la figure 5, la phase de saut se poursuit, l'organe entraineur 10 tournant toujours dans le sens horaire sous l'effet de son organe de rappel 11 élastique. Son doigt flexible 16 entraine toujours le cran 2' du disque sautant 1 de sorte que le disque sautant 1 poursuit sa rotation dans le sens horaire. Le sautoir 32 passe le moment de saut, le cran 2" du disque sautant 1 s'engageant sur le flanc descendant 40. L'organe entraineur 10 ayant tourné dans le sens horaire, la bascule de blocage 22 est sortie de l'encoche 24 et a retrouvé sa position haute de blocage, de sorte que le cran 2'" suivant du disque sautant 1 sera bloqué par le talon 26 de la bascule de blocage 22. Ainsi, un double saut est impossible.In reference to the figure 5 , the jumping phase continues, the drive member 10 still rotating clockwise under the effect of its elastic return member 11. Its flexible finger 16 still drives the notch 2' of the jumping disk 1 so that the jumping disk 1 continues its rotation clockwise. The jumper 32 passes the jumping moment, the notch 2" of the jumping disk 1 engaging on the descending flank 40. The drive member 10 having rotated clockwise, the locking lever 22 has come out of the notch 24 and has returned to its high locking position, so that the next notch 2'" of the jumping disk 1 will be blocked by the heel 26 of the locking lever 22. Thus, a double jump is impossible.

En référence à la figure 6, la phase de saut se termine, le bord arrière 18a de l'ouverture 18 de l'organe entraineur 10 arrive de préférence en butée contre la goupille 20 de sorte que l'organe entraineur 10 ne peut plus poursuivre sa rotation. Le doigt flexible 16 ne peut plus entraîner le cran 2' du disque sautant 1. Le flanc descendant 40 du sautoir 32, ramené dans sa position de repos par son ressort 34, pousse le cran 2" du disque sautant 1 de sorte que ce dernier termine sa rotation dans le sens horaire. La bascule de blocage 22 est dans sa position haute de blocage, empêchant tout double saut.In reference to the figure 6 , the jumping phase ends, the rear edge 18a of the opening 18 of the drive member 10 preferably comes into abutment against the pin 20 so that the drive member 10 can no longer continue its rotation. The flexible finger 16 can no longer drive the notch 2' of the jumping disk 1. The descending flank 40 of the jumper 32, returned to its rest position by its spring 34, pushes the notch 2" of the jumping disk 1 so that the latter completes its rotation in the clockwise direction. The locking lever 22 is in its high locking position, preventing any double jump.

En référence à la figure 7, la phase de saut est terminée et le mécanisme a retrouvé sa phase de repos. Le bord arrière 18a de l'ouverture 18 de l'organe entraineur 10 est de préférence en butée contre la goupille 20, le sautoir 32 a repositionné le disque sautant 1, le cran 2" étant au contact de son flanc avant 36. La bascule de blocage 22 est dans sa position haute de blocage, son bec 28 étant maintenu par le bord périphérique extérieur 10b de l'organe entraineur 10. Le mécanisme est prêt pour le prochain saut.In reference to the figure 7 , the jumping phase is over and the mechanism has returned to its rest phase. The rear edge 18a of the opening 18 of the drive member 10 is preferably in abutment against the pin 20, the jumper 32 has repositioned the jumping disk 1, the notch 2" being in contact with its front flank 36. The locking lever 22 is in its high locking position, its beak 28 being held by the outer peripheral edge 10b of the drive member 10. The mechanism is ready for the next jump.

En cas de choc par exemple, en référence à la figure 8, une rotation intempestive du disque sautant 1 dans le sens antihoraire n'est pas possible car le disque sautant 1 est bloqué du fait de son cran 2" verrouillé par le flanc avant 36 du sautoir 32. Une rotation dans le sens horaire n'est pas possible non plus, car le disque sautant 1 est verrouillé par le talon 26 de la bascule de blocage 22 elle-même verrouillée dans sa position haute de blocage par son bec 28 maintenu par le bord périphérique extérieur 10b de l'organe entraineur 10.In the event of a shock, for example, with reference to the figure 8 , an untimely rotation of the jumping disk 1 in the counterclockwise direction is not possible because the jumping disk 1 is blocked due to its notch 2" locked by the front flank 36 of the jumper 32. A rotation in the clockwise direction is also not possible, because the jumping disk 1 is locked by the heel 26 of the locking lever 22 itself. locked in its high blocking position by its beak 28 held by the outer peripheral edge 10b of the drive member 10.

Ainsi, le mécanisme selon l'invention permet d'avoir un dispositif de blocage du disque sautant qui empêche tout saut intempestif dans le sens de rotation du saut, que ce soit un double saut ou en cas de choc. Avec le sautoir, le mécanisme selon l'invention empêche tout saut intempestif dans le sens de rotation inverse de celui du saut, voire dans les deux sens de rotation si la force du ressort de rappel 34 est surdimensionnée et contribue ainsi à ce que le cran 2 ne puisse pas monter le long du flanc montant 38.Thus, the mechanism according to the invention makes it possible to have a device for blocking the jumping disk which prevents any untimely jump in the direction of rotation of the jump, whether it is a double jump or in the event of an impact. With the jumper, the mechanism according to the invention prevents any untimely jump in the opposite direction of rotation to that of the jump, or even in both directions of rotation if the force of the return spring 34 is oversized and thus contributes to the notch 2 not being able to rise along the rising flank 38.

De plus, le mécanisme selon l'invention utilise d'une manière particulièrement avantageuse une bascule de blocage sans ressort de rappel. Cela permet notamment de s'affranchir des problèmes liés à la gravité, à la consommation d'énergie et de simplifier le mécanisme.In addition, the mechanism according to the invention uses in a particularly advantageous manner a locking lever without a return spring. This makes it possible in particular to overcome problems linked to gravity, energy consumption and to simplify the mechanism.

Par ailleurs, d'une manière avantageuse dans le cas d'un disque des heures sautantes, la source d'énergie provient de la roue des heures. Cela a pour avantage d'avoir douze fois plus de couple que si l'on était en prise avec une roue des minutes, ce qui se fait classiquement dans les mécanismes à heure sautante.Furthermore, advantageously in the case of a jumping hour disc, the energy source comes from the hour wheel. This has the advantage of having twelve times more torque than if one were engaged with a minute wheel, which is conventionally done in jumping hour mechanisms.

L'invention n'est pas limitée à l'exemple décrit. Par exemple, le disque sautant et l'organe entraineur peuvent ne pas être concentriques. Bien que ce mécanisme puisse avantageusement être agencé sur un seul niveau pour bénéficier d'une épaisseur minimale, il est également possible de prévoir un agencement de ce mécanisme sur plusieurs niveaux, où typiquement au moins deux organes parmi le disque sautant 1, la bascule de blocage 22 et l'organe entraineur 10 sont sur un même niveau. Par exemple on peut disposer seulement l'organe entraineur et le disque sautant sur un même niveau, le dispositif de blocage pouvant être sur un autre niveau. Par exemple, la bascule de blocage peut coopérer avec l'organe entraineur et le disque sautant par le biais de goupilles solidaires de l'organe entraîneur, respectivement du disque sautant. Ce mode de réalisation peut être mis en oeuvre si le mécanisme n'est pas réalisable sur un seul niveau pour des questions d'encombrement par exemple.The invention is not limited to the example described. For example, the jumping disk and the drive member may not be concentric. Although this mechanism can advantageously be arranged on a single level to benefit from a minimum thickness, it is also possible to provide an arrangement of this mechanism on several levels, where typically at least two members among the jumping disk 1, the locking lever 22 and the drive member 10 are on the same level. For example, only the drive member and the jumping disk can be arranged on the same level, the locking device can be on another level. For example, the locking lever can cooperate with the drive member and the jumping disk by means of pins secured to the drive member, respectively to the jumping disk. This embodiment can be implemented if the mechanism cannot be produced on a single level for reasons of space for example.

Claims (15)

Mécanisme horloger comprenant un disque sautant (1) agencé pour pouvoir sauter d'un pas dans un sens de rotation, un dispositif d'entrainement du disque sautant comprenant un organe entraineur (10) rotatif agencé pour être, avec le disque sautant (1), fixe lors d'une phase de repos, et pour, lors d'une phase de saut, entraîner le disque sautant (1) d'un pas de manière sautante dans ledit sens de rotation, et un dispositif de blocage du disque sautant agencé pour autoriser la rotation du disque sautant (1) dans ledit sens de rotation lors de la phase de saut et pour empêcher une rotation du disque sautant (1) au moins dans ledit sens de rotation lors de la phase de repos, caractérisé en ce que ledit dispositif de blocage comprend une bascule de blocage (22) montée entre le disque sautant (1) et l'organe entraineur (10) et comprenant une tête (25), ladite bascule de blocage (22) étant agencée pour pouvoir évoluer entre une position haute de blocage dans laquelle ladite tête (25) est maintenue par un bord périphérique extérieur (10b) de l'organe entraineur (10) tout en étant apte à constituer une butée en rotation dans ledit sens de rotation pour le disque sautant (1) lors de la phase de repos, et une position basse de libération dans laquelle ladite tête (25) est engagée dans une encoche (24) prévue sur ledit bord périphérique extérieur (10b) de l'organe entraineur (10) afin d'être dégagée du disque sautant (1), ladite encoche (24) étant agencée pour être au moins en partie positionnée en vis-à-vis de la tête (25) de la bascule de blocage (22) au début de la phase de saut de sorte que le disque sautant (1) est libre en rotation, et pour ne plus être en vis-à-vis de ladite tête (25) après la phase de saut, ou de préférence avant la fin de la phase de saut, afin que la bascule de blocage (22) retrouve sa position haute de blocage.Clock mechanism comprising a jumping disk (1) arranged to be able to jump by one step in a direction of rotation, a device for driving the jumping disk comprising a rotary drive member (10) arranged to be, with the jumping disk (1), fixed during a rest phase, and to, during a jump phase, drive the jumping disk (1) by one step in a jumping manner in said direction of rotation, and a device for blocking the jumping disk arranged to allow the rotation of the jumping disk (1) in said direction of rotation during the jump phase and to prevent rotation of the jumping disk (1) at least in said direction of rotation during the rest phase, characterized in that said blocking device comprises a blocking lever (22) mounted between the jumping disk (1) and the drive member (10) and comprising a head (25), said blocking lever (22) being arranged to be able to move between a high blocking position in which said head (25) is held by an outer peripheral edge (10b) of the drive member (10) while being able to constitute a rotation stop in said direction of rotation for the jumping disk (1) during the rest phase, and a low release position in which said head (25) is engaged in a notch (24) provided on said outer peripheral edge (10b) of the drive member (10) in order to be released from the jumping disk (1), said notch (24) being arranged to be at least partly positioned opposite the head (25) of the locking lever (22) at the start of the jumping phase so that the jumping disk (1) is free to rotate, and to no longer be opposite said head (25) after the jumping phase, or preferably before the end of the jumping phase, so that the locking lever (22) returns to its high locking position. Mécanisme horloger selon la revendication 1, caractérisé en ce que le disque sautant (1) et l'organe entraineur (10) sont concentriques.Clock mechanism according to claim 1, characterized in that the jumping disc (1) and the drive member (10) are concentric. Mécanisme horloger selon l'une des revendications précédentes, caractérisé en ce qu'au moins deux organes parmi le disque sautant (1), la bascule de blocage (22) et l'organe entraineur (10) sont sur un même niveau.Clock mechanism according to one of the preceding claims, characterized in that at least two members among the jumping disc (1), the blocking lever (22) and the drive member (10) are on the same level. Mécanisme horloger selon l'une des revendications précédentes, caractérisé en ce que la bascule de blocage (22) est positionnée entre la périphérie intérieure (1a) du disque sautant (1) et le bord périphérique extérieur (1 0b) de l'organe entraineur (10).Clock mechanism according to one of the preceding claims, characterized in that the locking lever (22) is positioned between the inner periphery (1a) of the jumping disc (1) and the outer peripheral edge (10b) of the drive member (10). Mécanisme horloger selon l'une des revendications précédentes, caractérisé en ce que le disque sautant (1) comprend sur sa périphérie intérieure (1a) au moins autant de crans (2, 2', 2", 2'") que de sauts à effectuer sur un tour et en ce que la tête (25) de la bascule de blocage (22) comprend un talon (26) agencé pour pouvoir coopérer avec l'un des crans (2, 2'") lorsque la bascule de blocage (22) est dans sa position haute de blocage.Clock mechanism according to one of the preceding claims, characterized in that the jumping disk (1) comprises on its inner periphery (1a) at least as many notches (2, 2', 2", 2'") as there are jumps to be made on one revolution and in that the head (25) of the blocking lever (22) comprises a heel (26) arranged to be able to cooperate with one of the notches (2, 2'") when the blocking lever (22) is in its high blocking position. Mécanisme horloger selon l'une des revendications précédentes, caractérisé en ce que la tête (25) de la bascule de blocage (22) comprend un bec (28) agencé pour coopérer avec le bord périphérique extérieur (10b) de l'organe entraineur (10) lorsque la bascule de blocage (22) est dans sa position haute de blocage et pour coopérer avec l'encoche (24) de l'organe entraineur (10) lorsque la bascule de blocage (22) est dans sa position basse de libération.Clock mechanism according to one of the preceding claims, characterized in that the head (25) of the locking lever (22) comprises a beak (28) arranged to cooperate with the outer peripheral edge (10b) of the drive member (10) when the locking lever (22) is in its high locking position and to cooperate with the notch (24) of the drive member (10) when the locking lever (22) is in its low release position. Mécanisme horloger selon l'une des revendications précédentes, caractérisé en ce que l'organe entraineur (10) est associé à un organe de rappel (11) élastique, ledit organe entraineur (10) étant agencé pour être entraîné en rotation dans l'autre sens de rotation en armant son organe de rappel (11) lors d'une phase d'armage, indépendamment du disque sautant (1) et pour, lors de la phase de saut, tourner dans ledit sens de rotation sous l'effet de son organe de rappel (11) en entrainant le disque sautant (1) d'un pas de manière sautante dans ledit sens de rotation.Clock mechanism according to one of the preceding claims, characterized in that the drive member (10) is associated with an elastic return member (11), said drive member (10) being arranged to be driven in rotation in the other direction of rotation by winding its return member (11) during a winding phase, independently of the jumping disk (1) and to, during the jumping phase, rotate in said direction of rotation under the effect of its return member (11) by driving the jumping disk (1) one step in a jumping manner in said direction of rotation. Mécanisme horloger selon la revendication 7, caractérisé en ce que l'encoche (24) est dimensionnée et positionnée sur le bord périphérique extérieur (10b) de l'organe entraineur (10) de sorte que la tête (25) de la bascule de blocage (22) est positionnée dans l'encoche (24) sensiblement à une extrémité avant dans ledit sens de rotation à la fin de la phase d'armage et de sorte que la tête (25) de la bascule de blocage (22) est positionnée sensiblement à une extrémité arrière de l'encoche (24) dans ledit sens de rotation dès que le cran (2) qui était bloqué est passé.Clock mechanism according to claim 7, characterized in that the notch (24) is sized and positioned on the outer peripheral edge (10b) of the drive member (10) so that the head (25) of the blocking lever (22) is positioned in the notch (24) substantially at a front end in said direction of rotation at the end of the winding phase and so that the head (25) of the blocking lever (22) is positioned substantially at a rear end of the notch (24) in said direction of rotation as soon as the notch (2) which was blocked has passed. Mécanisme horloger selon l'une des revendications 7 et 8, caractérisé en ce que le dispositif d'entrainement du disque sautant (1) comprend une étoile d'entrainement (8) comprenant des dents (8a) agencées pour pouvoir être en prise avec un ergot (14) de l'organe entraineur (10) pour l'entrainer en rotation dans l'autre sens de rotation lors de la phase d'armage.Clock mechanism according to one of claims 7 and 8, characterized in that the device for driving the jumping disk (1) comprises a drive star (8) comprising teeth (8a) arranged to be able to be engaged with a lug (14) of the drive member (10) to drive it in rotation in the other direction of rotation during the winding phase. Mécanisme horloger selon l'une des revendications 7 à 9, caractérisé en ce que l'organe entraineur (10) du disque sautant (1) comprend un doigt flexible (16) agencé pour s'escamoter au contact du disque sautant (1) lorsque l'organe entraineur (10) est entraîné dans l'autre sens de rotation lors de la phase d'armage et pour entraîner le disque sautant (1) d'un pas dans le sens de rotation lorsque l'organe entraineur (10) tourne dans le sens de rotation pendant la phase de saut.Clock mechanism according to one of claims 7 to 9, characterized in that the drive member (10) of the jumping disc (1) comprises a flexible finger (16) arranged to retract into contact with the jumping disc (1) when the drive member (10) is driven in the other direction of rotation during the winding phase and to drive the jumping disc (1) by one step in the direction of rotation when the drive member (10) turns in the direction of rotation during the jumping phase. Mécanisme horloger selon l'une des revendications 7 à 10, caractérisé en ce que l'organe entraineur (10) est limité en déplacement par au moins une parmi deux butées (18a, 18b) dont l'une correspond à la position de l'organe entraineur (10) lors de la phase de repos et l'autre correspond à la position de l'organe entraineur (10) à la fin de la phase d'armage ou détermine un jeu avec la position de l'organe entraineur (10) à la fin de la phase d'armage.Clock mechanism according to one of claims 7 to 10, characterized in that the drive member (10) is limited in movement by at least one of two stops (18a, 18b), one of which corresponds to the position of the drive member (10) during the rest phase and the other corresponds to the position of the drive member (10) at the end of the winding phase or determines a clearance with the position of the drive member (10) at the end of the winding phase. Mécanisme horloger selon l'une des revendications précédentes, caractérisé en ce que le dispositif de blocage comprend un sautoir (32) agencé pour laisser libre en rotation le disque sautant (1) dans le sens de rotation lors de la phase de saut et pour bloquer ledit disque sautant (1) dans l'autre sens de rotation lors de la phase de repos.Clock mechanism according to one of the preceding claims, characterized in that the blocking device comprises a jumper (32) arranged to allow the jumping disc (1) to rotate freely in the direction of rotation during the jumping phase and to block said jumping disc (1) in the other direction of rotation during the rest phase. Mécanisme horloger selon la revendication précédente, caractérisé en ce que le sautoir (32) comprend un flanc descendant (40) configuré pour terminer la rotation du disque sautant (1) en utilisant l'énergie élastique d'un ressort de rappel (34) du sautoir (32) lorsque ce dernier revient en position de reposClock mechanism according to the preceding claim, characterized in that the jumper (32) comprises a descending flank (40) configured to terminate the rotation of the jumping disk (1) by using the elastic energy of a return spring (34) of the jumper (32) when the latter returns to the rest position. Mécanisme horloger selon l'une des revendications précédentes, caractérisé en ce que le disque sautant (1) est un disque des heures et en ce que l'organe entraineur (10) est entraîné via une roue des heures (7).Clock mechanism according to one of the preceding claims, characterized in that the jumping disc (1) is an hour disc and in that the drive member (10) is driven via an hour wheel (7). Pièce d'horlogerie comprenant un mécanisme horloger selon l'une des revendications 1 à 14.Timepiece comprising a clock mechanism according to one of claims 1 to 14.
EP23178191.5A 2023-06-08 2023-06-08 Timepiece mechanism comprising a jumping disc Pending EP4474920A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP23178191.5A EP4474920A1 (en) 2023-06-08 2023-06-08 Timepiece mechanism comprising a jumping disc
PCT/EP2024/065255 WO2024251693A1 (en) 2023-06-08 2024-06-04 Timepiece mechanism comprising a jumping disc

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP23178191.5A EP4474920A1 (en) 2023-06-08 2023-06-08 Timepiece mechanism comprising a jumping disc

Publications (1)

Publication Number Publication Date
EP4474920A1 true EP4474920A1 (en) 2024-12-11

Family

ID=86732943

Family Applications (1)

Application Number Title Priority Date Filing Date
EP23178191.5A Pending EP4474920A1 (en) 2023-06-08 2023-06-08 Timepiece mechanism comprising a jumping disc

Country Status (2)

Country Link
EP (1) EP4474920A1 (en)
WO (1) WO2024251693A1 (en)

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1035295A (en) * 1964-03-24 1966-07-06 Smiths Industries Ltd Improvements in or relating to clocks and watches having date indicators
CH454039A (en) * 1965-02-18 1968-06-14 Felsa S A Calendar timepiece
FR2021421A2 (en) * 1968-10-24 1970-07-24 Pforzhetmer Uhren Rohwer
FR1602910A (en) * 1968-10-16 1971-02-22
CH553441A (en) * 1971-06-17 1974-08-30
GB2042225A (en) * 1979-02-27 1980-09-17 Nii Chasovoi Promysh Instantaneous calendar device for timepieces
US20020080686A1 (en) * 2000-12-22 2002-06-27 Eta Sa Fabriques D'ebauches Instantaneous drive mechanism for a date indicator
CH715979A1 (en) * 2019-03-19 2020-09-30 Richemont Int Sa Date display mechanism for a watch movement.
US20210208538A1 (en) * 2020-01-08 2021-07-08 Seiko Epson Corporation Movement and watch
CH717262A1 (en) 2020-03-26 2021-09-30 Officine Panerai Ag Date display system preventing any accidental incrementation such as during an impact.

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1035295A (en) * 1964-03-24 1966-07-06 Smiths Industries Ltd Improvements in or relating to clocks and watches having date indicators
CH454039A (en) * 1965-02-18 1968-06-14 Felsa S A Calendar timepiece
FR1602910A (en) * 1968-10-16 1971-02-22
FR2021421A2 (en) * 1968-10-24 1970-07-24 Pforzhetmer Uhren Rohwer
CH553441A (en) * 1971-06-17 1974-08-30
GB2042225A (en) * 1979-02-27 1980-09-17 Nii Chasovoi Promysh Instantaneous calendar device for timepieces
US20020080686A1 (en) * 2000-12-22 2002-06-27 Eta Sa Fabriques D'ebauches Instantaneous drive mechanism for a date indicator
CH715979A1 (en) * 2019-03-19 2020-09-30 Richemont Int Sa Date display mechanism for a watch movement.
US20210208538A1 (en) * 2020-01-08 2021-07-08 Seiko Epson Corporation Movement and watch
CH717262A1 (en) 2020-03-26 2021-09-30 Officine Panerai Ag Date display system preventing any accidental incrementation such as during an impact.

Also Published As

Publication number Publication date
WO2024251693A1 (en) 2024-12-12

Similar Documents

Publication Publication Date Title
EP2085832B1 (en) Chronograph device with friction coupling
EP1335253B1 (en) Annual calendar mechanism for clockwork-movement
EP2407833B1 (en) Clearance compensation mechanism for clock movement
EP3483663B1 (en) Drive device for clock calendar system
EP3403143B1 (en) Horology movement with jumping display mechanism
EP3584643B1 (en) Instantaneous command device for date display of timepieces
CH713209B1 (en) Display mechanism for timepiece.
EP4474920A1 (en) Timepiece mechanism comprising a jumping disc
EP1857890B1 (en) Device for triggering a pulse
EP1801671B1 (en) Calendar watch provided with blocking means
CH691086A5 (en) clockwork perpetual calendar.
EP1416342B1 (en) Timepiece with an alarm provided with surprise-piece lifting lever
CH524847A (en) Calendar watch
EP4321939B1 (en) Device for instant triggering for a timepiece mechanism
EP1558971B1 (en) Date indicator mechanism for watch movement
EP0871095B1 (en) Display device with jumping seconds
CH715723B1 (en) Instant jump mechanism of a display mobile.
CH714728B1 (en) Striking mechanism for watch movement.
EP3686694B1 (en) Alarm clock mechanism and timepiece comprising such a mechanism
EP4312087A1 (en) Annual calendar mechanism for timepiece movement
EP3845973A1 (en) Timepiece mechanism intended to be driven according to a variable number of pitches
EP3904963A1 (en) Timepiece movement comprising an auxiliary mechanism driven by an auxiliary power source
WO2025016871A1 (en) Mechanism for a timepiece movement comprising a device for locking a mobile
CH715980A1 (en) Jumping mechanism for watch movement.
CH705710B1 (en) An actuator in the fall of great control rocker displaying an instantaneous a timepiece equipped with a perpetual calendar mechanism or secular.

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION HAS BEEN PUBLISHED

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC ME MK MT NL NO PL PT RO RS SE SI SK SM TR