EP4202577A1 - Wippevorrichtung eines uhrwerks - Google Patents

Wippevorrichtung eines uhrwerks Download PDF

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Publication number
EP4202577A1
EP4202577A1 EP21216291.1A EP21216291A EP4202577A1 EP 4202577 A1 EP4202577 A1 EP 4202577A1 EP 21216291 A EP21216291 A EP 21216291A EP 4202577 A1 EP4202577 A1 EP 4202577A1
Authority
EP
European Patent Office
Prior art keywords
rocker
chronograph
wheel
main
main rocker
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.)
Withdrawn
Application number
EP21216291.1A
Other languages
English (en)
French (fr)
Inventor
Olivier GUMY
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 EP21216291.1A priority Critical patent/EP4202577A1/de
Priority to PCT/IB2022/062283 priority patent/WO2023119079A1/fr
Priority to CN202280085208.0A priority patent/CN118475885A/zh
Publication of EP4202577A1 publication Critical patent/EP4202577A1/de
Withdrawn legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G04—HOROLOGY
    • G04F—TIME-INTERVAL MEASURING
    • G04F7/00—Apparatus for measuring unknown time intervals by non-electric means
    • G04F7/04—Apparatus for measuring unknown time intervals by non-electric means using a mechanical oscillator
    • G04F7/08—Watches or clocks with stop devices, e.g. chronograph
    • G04F7/0823—Watches or clocks with stop devices, e.g. chronograph with couplings between the chronograph mechanism and the base movement
    • G04F7/0833—Watches or clocks with stop devices, e.g. chronograph with couplings between the chronograph mechanism and the base movement acting perpendicular to the plane of the movement
    • G—PHYSICS
    • G04—HOROLOGY
    • G04F—TIME-INTERVAL MEASURING
    • G04F7/00—Apparatus for measuring unknown time intervals by non-electric means
    • G04F7/04—Apparatus for measuring unknown time intervals by non-electric means using a mechanical oscillator
    • G04F7/08—Watches or clocks with stop devices, e.g. chronograph
    • G04F7/0823—Watches or clocks with stop devices, e.g. chronograph with couplings between the chronograph mechanism and the base movement
    • G04F7/0828—Watches or clocks with stop devices, e.g. chronograph with couplings between the chronograph mechanism and the base movement acting in the plane of the movement

Definitions

  • the present invention relates to a device for rocking a watch mechanism.
  • the rocker device can be used in particular to actuate a clutch of a chronograph.
  • Conventional chronographs generally have a column wheel which is the control center of the chronograph mechanism for starting, stopping and resetting the measurement functions.
  • the column wheel is adapted to manage the movement of the rockers and other levers which are held against the column wheel by springs to actuate a clutch either of the vertical type or of the horizontal/lateral type.
  • a clutch shoe In a vertical-type gear chronograph, a clutch shoe is arranged to occupy a disengaged position, corresponding to the stop position of the chronograph, and an engaged position, corresponding to the running position of the chronograph, where the clutch shoe he clutch is engaged with a mobile second.
  • the latter meshes directly or indirectly with a gear train of the watch movement in order to transmit the movement to the chronograph axis which carries the chronograph seconds hand.
  • EP2015145 discloses a chronograph having a vertical type clutch.
  • the chronograph has a clamp consisting of two branches forming an integral part of a main rocker and a secondary rocker.
  • the gripper is intended to move the clutch shoe of the clutch wheel set axially so that the latter changes from a clutched configuration, in which the chronograph wheel set is driven by the seconds wheel via the clutch to a disengaged configuration, in which the clutch pad is separated from the clutch wheel.
  • the main rocker controls the secondary rocker and cooperates with a column wheel through a beak.
  • the column wheel is controlled by an on/off push button of the chronograph.
  • Each press of the push button rotates the column wheel one step, which closes or opens the gripper depending on the position of the main rocker beak relative to the columns.
  • the beak bears against an outer flank of a column of the wheel against the action of a return spring of the clamp, which keeps the clamp in its position. closed.
  • the action of the return spring maintains the clamp in its open position.
  • the force exerted by the return spring of the clamp poses several drawbacks.
  • the torque induced by the pressure of the beak on the column wheel is significant, which can cause significant wear of the mechanism in the long term.
  • a relatively high pressure must be exerted on the pusher for starting and stopping the chronograph.
  • An object of the present invention is therefore to provide a rocker device for a watch mechanism, in particular a chronograph, free from the aforementioned drawbacks.
  • an object of the present invention is to propose a tilting device subjected to reduced forces when the device is actuated in order to limit premature wear of the parts of the device.
  • Another object of the present invention is to provide a rocker device locked in one and the other of two states or configuration of the start/stop or on/off type in order to minimize the impact of shocks on the parts. of the device.
  • An additional object of the present invention is to provide a rocker device whose actuation requires less pressure on the push-button in order to improve the comfort of use.
  • a complementary object of the present invention is to propose a simplified tilting device with a limited number of parts in order to reduce production costs.
  • the rocker device includes a column wheel and a main rocker.
  • the main rocker includes a portion arranged to be actuated by rotation of the column wheel from a first position, wherein a distal portion of the main rocker is in a first location, to a second position, wherein the distal portion of the main rocker is in a second location.
  • the main rocker also comprises a first and a second beak arranged to cooperate with the columns of the wheel with columns in order to bring the main rocker into one or the other of said first and second positions.
  • the first beak is in contact with the outer flank of a column while the second beak is arranged between two other columns when the main rocker is in one of said first and second positions.
  • the second beak is in contact with the outer flank of a column while the first beak is arranged between two other columns when the main rocker is in the other of said first and second positions.
  • the first and second slats of the main rocker are arranged on either side of the column wheel and form an angle (a) between them, relative to the axis of rotation of the column wheel.
  • columns between 90° and 270°, preferably between 120° and 180°, ideally between 140° and 160.
  • the main rocker comprises an edge in the form of an arc of a circle extending between the first and second beaks, substantially along an arc of a circle defined by the outer sides of the columns of the column wheel .
  • a clearance exists between said edge and the arc of a circle defined by the external sides of said columns so that only the first and the second nose are in contact with the columns of the column wheel when the main rocker pivots into either of said first and second positions.
  • the main rocker is in a locked configuration in one and the other of said first and second positions.
  • the latch device further comprises a secondary latch arranged to cooperate with the main latch.
  • the secondary rocker has a distal portion to form a clamp with the distal portion of the primary rocker.
  • the respective distal portions of the main rocker and of the secondary rocker approach each other when the main rocker is brought into one of the first and second positions.
  • the distal portions moving away from each other when the main rocker is moved into the other of the first and second positions.
  • Another aspect of the invention relates to a watch movement comprising a watch mechanism comprising the rocker device according to the invention.
  • the watch mechanism is a chronograph comprising a pusher control arranged to actuate in rotation the column wheel of the rocker device, preferably by means of a pawl cooperating with a ratchet of the column wheel , in order to switch the main rocker into one or the other of said first and second positions.
  • a pusher control arranged to actuate in rotation the column wheel of the rocker device, preferably by means of a pawl cooperating with a ratchet of the column wheel , in order to switch the main rocker into one or the other of said first and second positions.
  • the chronograph is a lateral type clutch chronograph.
  • the chronograph comprises a chronograph wheel and a clutch wheel pivotally mounted on the distal part of the main rocker so as to engage with the second wheel of the watch movement.
  • the clutch wheel is arranged so as to be remote from the chronograph wheel when the rocker main is in one of the first and second positions in order to maintain the chronograph in a disengaged configuration.
  • the clutch wheel is further arranged to come into engagement with the chronograph wheel when the main rocker is brought into the other of the first and second positions in order to bring the chronograph into a clutched configuration.
  • the chronograph includes a vertical clutch chronograph mobile.
  • the chronograph runner comprises a second runner engaged with a gear train of the watch movement, a chronograph axle on which the second runner is mounted in free pivoting, a clutch pad mounted on the chronograph axle and a clutch spring cooperating with the clutch shoe.
  • the latch device further comprises a secondary latch arranged to cooperate with the main latch.
  • the secondary rocker has a distal portion to form a clamp with the distal portion of the primary rocker.
  • the respective distal portions of the main rocker and of the secondary rocker approach each other when the main rocker is brought into one of said first and second positions so as to cooperate with the clutch shoe in order to maintain the latter at a distance from the second mobile so that the chronograph mobile is in a disengaged configuration.
  • the respective distal parts of the main rocker and of the secondary rocker move away from each other when the main rocker is brought into the other of said first and second positions in order to bring the chronograph wheel set into a clutched configuration in which the clutch pad is held against the second wheel set, under the action of the clutch spring, to be driven by the second wheel set by friction.
  • the clutch pad is in the form of a cup.
  • the cup comprises a lower surface intended to come into contact with the second mobile in the engaged configuration of the chronograph mobile.
  • the cup also comprises the clutch spring which is in contact with a shoulder or a collar of the chronograph axis in order to press the cup against the second mobile.
  • an upper part of the cup has an annular edge.
  • the respective distal parts of the main rocker and of the secondary rocker are housed under the annular edge in order to move the clutch pad axially so that the latter is separated from the second mobile when the chronograph mobile is brought into the disengaged configuration .
  • Another aspect of the invention relates to a timepiece, in particular a wristwatch, comprising the rocker device.
  • the rocker device 10 is used to control the start and stop of a chronograph comprising a mobile chronograph with vertical clutch 40.
  • the rocker device 10 comprises a push-button control 12 operable by a push-button (not shown) located for example at 2H.
  • the pusher control 12 is arranged to rotate a column wheel 16 by means of a pawl 14 cooperating with the ratchet 18 of the column wheel whose angular position at rest is maintained by a blade - spring 19.
  • the pawl 14 is typically pivotally mounted on an axis by means of a bayonet system 15 providing the mechanical connection between the pusher control 12 and the pawl 14.
  • the rocker device 10 further comprises a main rocker 20 mounted in free pivoting on a first pivot axis 24 as well as a secondary rocker 30 mounted in free pivoting on a second pivot axis 31.
  • Each of the rockers 20, 30 comprises a distal part 26, 32 arranged on either side of the chronograph mobile 40 in order to form a clamp.
  • the main rocker 20 cooperates with the secondary rocker 30 in order to move the distal parts 26, 32 one against the other or in an opposite direction in order to fulfill the clamp function capable of bringing the chronograph mobile 40 from one configuration engaged to a configuration disengaged and vice versa according to the detailed description which will be made later.
  • the main rocker 20 comprises a first and a second beak 21a, 21b arranged to cooperate with the columns 17 of the column wheel 16, like an escape anchor. This makes it possible to bring the main rocker 20 into a first locked angular position, in which the distal parts 26, 32 hold the chronograph wheel set 40 in the disengaged configuration, to a second locked angular position, so as to disengage the distal parts 26 , 32 of the mobile chronograph 40 so that it passes from the disengaged configuration to the engaged configuration.
  • first and second beaks 21a, 21b are located at the ends of an edge 23 of the main rocker in the shape of an arc of a circle extending substantially along part of a circle defined by the flanks external columns 17 so that the two spouts are arranged on either side of the column wheel 16.
  • the two spouts 21a, 21b form an angle ⁇ between them ( figure 7a ), relative to the axis of rotation of the column wheel, between 90° and 270°, preferably between 120° and 180°, ideally between 140° and 160°.
  • a clearance is provided between the edge 23 and the arc of a circle defined by the outer sides of said columns 17 so that only the first and the second nose 21a, 21b are in contact with the columns 17 of the column wheel when the main rocker 20 pivots into one or the other of the first and second locked angular positions.
  • the rocker device thus makes it possible to minimize, in an advantageous manner, the impact of shocks on the parts of the device since the main rocker ensures a stable position in one and the other of the two angular positions.
  • Each beak 21a, 21b of the main flip-flop 20 comprises a pulse plane 22 ( figure 7b And 7d ) intended to cooperate with the columns 17 of the column wheel, according to the description of the sequence of movements illustrated by the figures 7a to 7d detailed below, in order to actuate the main rocker 20 in one or the other of the first and second positions.
  • the chronograph wheel set 40 comprises a second wheel set 44 in direct or indirect engagement with the gear train (not shown) of the watch movement, a chronograph axis 41 on which the second wheel set 44 is mounted in free pivoting, a shoe clutch 46 mounted on the chronograph axis 41 and a clutch spring 52 arranged to cooperate with the clutch pad 46.
  • the latter is preferably in the form of a cup.
  • the cup 46 further includes the clutch spring 52 resting against a shoulder or a collar 42 made on the chronograph axis 41.
  • the clutch spring 52 can be fixed or free to rotate on the chronograph axis 41.
  • the mobile chronograph 40 according to the figure 4 is in a disengaged configuration in which the ends of the respective distal parts 26, 32 of the main rocker 20 and of the secondary rocker 30 are in contact with the annular edge 48 of the clutch shoe 46 so as to keep the latter at a distance from the moving second 44.
  • the chronograph axis 41 is separated from the mobile second 44. The chronograph is therefore stopped.
  • the mobile chronograph 40 further comprises a cam 54 for resetting the chronograph secured to the axis of the chronograph 41.
  • This cam 54 is arranged to be actuated by a rocker (not shown) in order to reset the chronograph to zero.
  • This rocker is actuated by a pusher located for example at 4 o'clock.
  • a finger 56 preferably having elastic properties, is also integral with the chronograph axis 41 in order to actuate the rotation of a minute wheel of the chronograph by an angle defined according to the display of the number of minutes.
  • the rocker device 10 maintains the mobile chronograph 40 in a disengaged configuration.
  • the tip of the first beak 21a of the main rocker 20 bears against the outer side of a column 17 of the column wheel 16.
  • the tip of the second beak 21b of the main rocker is located between two other columns 17. This makes it possible to guarantee an angular position of the main rocker 20 and of the secondary rocker 30 in which their distal parts 26, 32 hold the clutch shoe 46 of the chronograph wheel set 40 at a distance from the second wheel set 44 ( figure 4 ). The chronograph is therefore stopped.
  • the pivoting of the main rocker 20 causes, via a mechanical connection, the pivoting of the secondary rocker 30 in the clockwise direction around its pivot axis 31.
  • the rocker main 20 comprises a main coupling part 28 coupled to a secondary coupling part 34 of the secondary rocker 30.
  • the latter may for example comprise a finger, one end of which is arranged in a cutout made on the main or secondary rocker.
  • the main rocker 20 and/or the secondary rocker 30 may further comprise a leaf spring 36 in order to exert a stress on the mechanical connection thus ensuring permanent contact between the two rockers.
  • the main rocker 20 is therefore always in contact with the outer flank of a column 17 of the column wheel 16, which makes it possible to dispense with a return spring which is necessary, according to the rockers of chronographs of the state of the art, to allow the beak of the rocker to cooperate with the columns of the column wheel.
  • the rocker device 10 is adapted to control the start and the stop of a lateral type clutch chronograph.
  • a clutch wheel 61 is pivotally mounted on a distal part 29 of the main rocker 20.
  • This comprises, like the main rocker according to the first embodiment which has just been described, a first and a second beak 21a, 21b arranged to cooperate with the columns 17 of the column wheel 16 to induce the pivoting of the main rocker 20 about its pivot axis 24 according to the description which has been made of it with reference to the figures 7a to 7d .
  • the clutch wheel 61 meshes with the second wheel 60 of the movement watchmaker, is remote from the chronograph wheel 62.
  • the pusher control (not shown) is actuated, the pawl 14 rotates the column wheel 16 in order to pivot the main rocker 20 about its pivot axis 24 so so that the clutch wheel 61 engages with the chronograph wheel 62 as shown in figure 8b .
  • a flexible main rocker 20 and/or a clutch wheel 61 comprising elastic toothing in order to avoid or, at the very least, minimize premature wear caused by the repeated impacts of the clutch wheel 61 against the chronograph wheel 62.
  • the latch device 10 could include a column wheel 16 and at least one second main latch identical or similar to the first main latch 20.
  • each of the main latches could be used to control the start and stopping a distinct mechanism such as a horological complication.
  • the latch device 10 could comprise a column wheel 16 and at least a second pair of main latch 20 and secondary latch 30. Each of the pairs of main and secondary latches could then control the start and the stopping a separate mechanism such as the one mentioned above.
  • the rocker device according to the invention is not limited to controlling the starting and stopping of a chronograph mechanism. It can be adapted to any type of watch mechanism provided with two states or configurations of the start/stop type or on/off, in order to bring it into one or the other of these configurations.
  • Such a mechanism can for example be a display mechanism making it possible to display successively, through a window for example, a first and a second element of different visual appearance according to the actuation of the tilting device.
  • the rocker device according to the invention can also be used to release a train under tension, to correct a mechanism or to select functions.
  • the rocker device can be adapted for continuous training in order to display, for example, a day/night indication.
  • the rocker device is devoid of a pusher control, a pawl and a ratchet, the columns being integral with a wheel set engaged with the gear train of the watch movement.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Measurement Of Unknown Time Intervals (AREA)
EP21216291.1A 2021-12-21 2021-12-21 Wippevorrichtung eines uhrwerks Withdrawn EP4202577A1 (de)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP21216291.1A EP4202577A1 (de) 2021-12-21 2021-12-21 Wippevorrichtung eines uhrwerks
PCT/IB2022/062283 WO2023119079A1 (fr) 2021-12-21 2022-12-15 Dispositif de bascule d'un mécanisme horloger
CN202280085208.0A CN118475885A (zh) 2021-12-21 2022-12-15 用于表机构的杠杆装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP21216291.1A EP4202577A1 (de) 2021-12-21 2021-12-21 Wippevorrichtung eines uhrwerks

Publications (1)

Publication Number Publication Date
EP4202577A1 true EP4202577A1 (de) 2023-06-28

Family

ID=78957421

Family Applications (1)

Application Number Title Priority Date Filing Date
EP21216291.1A Withdrawn EP4202577A1 (de) 2021-12-21 2021-12-21 Wippevorrichtung eines uhrwerks

Country Status (3)

Country Link
EP (1) EP4202577A1 (de)
CN (1) CN118475885A (de)
WO (1) WO2023119079A1 (de)

Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0490285A1 (de) * 1990-12-11 1992-06-17 Eta SA Fabriques d'Ebauches Uhr vom Typ eines Einholzeigerchronographs mit einer Vorrichtung zum Anhalten und Starten eines Einholzeigers
EP1791043A1 (de) * 2005-11-24 2007-05-30 Vaucher Manufacture Fleurier SA Chronographenwerk für Uhr
US20080043576A1 (en) * 2006-08-15 2008-02-21 Karl-Friedrich Scheufele Zero-resetting device for a timepiece
EP2015145A1 (de) 2007-06-11 2009-01-14 Chopard Manufacture SA Vertikale Kupplungsvorrichtung für Uhr
EP2085832A1 (de) * 2008-02-04 2009-08-05 Frédéric Piguet S.A. Chronographenvorrichtung mit Reibungskupplung
CH700080A2 (de) * 2008-12-08 2010-06-15 Seiko Instr Inc Chronographen-Mechanismus und Chronograph mit diesem Mechanismus.
EP2249215A2 (de) * 2003-05-09 2010-11-10 Audemars Piguet (Renaud et Papi) SA Chronographuhr mit sofortiger Anzeige von Sekunden-Bruchteilen
EP2811348A2 (de) * 2013-05-31 2014-12-10 Rolex Sa Uhrmechanismus zur Speicherung und Anzeige einer Zeitanzeige
EP3182229B1 (de) * 2015-12-17 2018-04-25 Breitling AG Chronographenmechanismus mit isoliertem schleppzeigermechanismus
EP3495898A1 (de) * 2017-12-05 2019-06-12 Guenat SA Montres Valgine Mechanismus für uhrwerk eines chronographs
WO2021219646A1 (fr) * 2020-04-29 2021-11-04 Patek Philippe Sa Genève Mouvement horloger comprenant un mécanisme de chronographe compte à rebours et un mécanisme de sonnerie

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH623980GA3 (en) * 1979-01-19 1981-07-15 Timepiece with chronograph
EP3904967B1 (de) * 2020-04-29 2022-09-28 Patek Philippe SA Genève Steuervorrichtung eines uhrwerkmechanismus

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0490285A1 (de) * 1990-12-11 1992-06-17 Eta SA Fabriques d'Ebauches Uhr vom Typ eines Einholzeigerchronographs mit einer Vorrichtung zum Anhalten und Starten eines Einholzeigers
EP2249215A2 (de) * 2003-05-09 2010-11-10 Audemars Piguet (Renaud et Papi) SA Chronographuhr mit sofortiger Anzeige von Sekunden-Bruchteilen
EP1791043A1 (de) * 2005-11-24 2007-05-30 Vaucher Manufacture Fleurier SA Chronographenwerk für Uhr
US20080043576A1 (en) * 2006-08-15 2008-02-21 Karl-Friedrich Scheufele Zero-resetting device for a timepiece
EP2015145A1 (de) 2007-06-11 2009-01-14 Chopard Manufacture SA Vertikale Kupplungsvorrichtung für Uhr
EP2085832A1 (de) * 2008-02-04 2009-08-05 Frédéric Piguet S.A. Chronographenvorrichtung mit Reibungskupplung
CH700080A2 (de) * 2008-12-08 2010-06-15 Seiko Instr Inc Chronographen-Mechanismus und Chronograph mit diesem Mechanismus.
EP2811348A2 (de) * 2013-05-31 2014-12-10 Rolex Sa Uhrmechanismus zur Speicherung und Anzeige einer Zeitanzeige
EP3182229B1 (de) * 2015-12-17 2018-04-25 Breitling AG Chronographenmechanismus mit isoliertem schleppzeigermechanismus
EP3495898A1 (de) * 2017-12-05 2019-06-12 Guenat SA Montres Valgine Mechanismus für uhrwerk eines chronographs
WO2021219646A1 (fr) * 2020-04-29 2021-11-04 Patek Philippe Sa Genève Mouvement horloger comprenant un mécanisme de chronographe compte à rebours et un mécanisme de sonnerie

Also Published As

Publication number Publication date
WO2023119079A1 (fr) 2023-06-29
CN118475885A (zh) 2024-08-09

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