EP4453666A1 - Dispositif de bascule d'un mécanisme horloger - Google Patents
Dispositif de bascule d'un mécanisme horlogerInfo
- Publication number
- EP4453666A1 EP4453666A1 EP22829906.1A EP22829906A EP4453666A1 EP 4453666 A1 EP4453666 A1 EP 4453666A1 EP 22829906 A EP22829906 A EP 22829906A EP 4453666 A1 EP4453666 A1 EP 4453666A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- rocker
- chronograph
- wheel
- clutch
- main
- 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
Links
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
-
- 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
- G04F7/0842—Watches or clocks with stop devices, e.g. chronograph with start-stop control mechanisms
- G04F7/0847—Watches or clocks with stop devices, e.g. chronograph with start-stop control mechanisms with column wheel
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 include a column wheel which constitutes 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 pad engages with a second mobile.
- 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 comprising a clutch of the vertical type.
- the chronograph has a clamp made up of two arms forming an integral part of a main rocker and a rocker secondary.
- the clamp is intended to axially move the clutch pad of the clutch wheel set 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.
- EP0490285 relates to a control device for a chronograph and which comprises a clamp, a moving part arranged between the free ends of the two arms of the clamp, two fixed reaction members against which a connecting portion is pressed between the two arms of the gripper and deformation means generating a force acting against the reaction members on the connecting portion to deform the latter.
- This control device has several drawbacks, in particular due to its complexity and its operating principle, which can have an impact on its long-term reliability.
- This device in fact comprises a two-stage mobile, a pushing and positioning member arranged to cooperate with the mobile, a control lever for actuating the mobile in rotation in order to actuate the pushing and positioning member and a clamp arranged to cooperate with a mobile of the chronograph.
- This clamp comprises an elastic strip intended to deform under the action of the thrust member for the opening of the clamp in order to control the start of the chronograph.
- the elastic properties of the lamella can deteriorate over time, which can modify the positioning of the gripper arms.
- An object of the present invention is therefore to provide a rocker device for a watch mechanism, in particular a chronograph, free of the aforementioned drawbacks.
- an object of the present invention is to provide 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 type or on / off in order to minimize the impact to 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 to improve ease of use.
- a complementary object of the present invention is to provide a simplified tilting device with a limited number of parts in order to reduce production costs and increase the reliability of the device.
- a rocker device of a watch mechanism comprising a column wheel and a main rocker mounted pivoting, about a first pivot axis, alternating between two positions stable.
- the main rocker comprises an anchor provided with two slats which, in each of the two stable positions, are alternately located for one between two columns and for the other in contact with a peripheral flank of another column.
- the main rocker further comprises a distal part for controlling the watch mechanism.
- the anchor and the distal part of the rocker are arranged to pivot around the first pivot axis.
- the main latch is rigid.
- the main flip-flop is in one piece.
- the first and second beaks of the anchor are arranged on either side of the column wheel. These beaks form an angle between them, relative to the axis of rotation of the column wheel, of between 90° and 270°, preferably between 120° and 180°, ideally between 140° and 160°.
- the main lever has an edge extending between the first and second beaks substantially along an arc of a circle defined by the peripheral sides of the columns of the column wheel.
- a clearance exists between the edge and the arc of a circle defined by the peripheral sides of said columns so that only the first and second beaks are in contact with the columns of the column wheel. when the main rocker pivots into either of two stable positions.
- the main rocker is in a locked configuration in one and the other of the two stable 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 two stable positions.
- the distal parts move away from each other when the main rocker is brought into the other of the two stable positions.
- Another aspect of the invention relates to a watch movement comprising the aforementioned rocker device.
- the watch mechanism is a chronograph comprising a push-button control arranged to actuate in rotation the column wheel of the rocker device.
- the rotation of the column wheel is preferably done by means of a pawl cooperating with a ratchet of this column wheel. This rotation makes it possible to tilt the main rocker into one or the other of the two stable positions in order to bring the distal part into one or the other of a first and a second location corresponding respectively to a configuration engaged and disengaged from the chronograph.
- the chronograph is a lateral clutch chronograph comprising a chronograph wheel and a clutch wheel pivotally mounted on the distal part of the main rocker so as to engage with a second wheel of the watch movement.
- the clutch wheel is arranged to be remote from the chronograph wheel when the main rocker is in one of the two stable positions in order to maintain the chronograph in a disengaged configuration.
- the clutch wheel is also arranged to come into engagement with the chronograph wheel when the main lever is brought into the other of the two stable positions in order to bring the chronograph into a clutched configuration.
- the chronograph comprises a vertical clutch chronograph mobile comprising a second mobile engaged with a gear train of the watch movement, a chronograph axis on which the second mobile is mounted in free pivoting , a clutch pad mounted on the chronograph axis, and a clutch spring cooperating with the clutch pad.
- the respective distal parts of the main rocker and of the secondary rocker of the rocker device according to the embodiment mentioned above approach each other when the main rocker is brought into one of the two stable positions so 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 distal parts move away from each other when the main rocker is moved into the other of the two stable positions in order to bring the chronograph wheel set into a clutched configuration in which the clutch pad is held against the wheel set second, under the action of the clutch spring, to be driven by the mobile second by friction.
- the clutch pad is in the form of a cup comprising a lower surface intended to come into contact with the second mobile in the engaged configuration of the chronograph mobile.
- the clutch spring is in contact with a shoulder or a flange 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 arranged to be 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.
- FIG. 1 illustrates a perspective view of the rocker device arranged to control the start and stop of a vertical-type clutch chronograph mobile of a chronograph according to a preferred embodiment of the invention
- FIG. 2 illustrates a top view of the rocker device and the mobile chronograph of Figure 1;
- FIG. 3 illustrates a top view of the mobile chronograph of Figure 2 with the clamp formed by the distal portions of the main and secondary rockers in engagement with the clutch pad of the mobile chronograph;
- FIG. 4 illustrates a sectional view of Figure 3 according to A-A
- FIG. 5 illustrates a view similar to Figure 3 when the chronograph is running
- FIG. 6 illustrates a sectional view of Figure 5 according to A-A
- FIGS. 7a-7d illustrate different sequences of movements of the rocker device of Figure 1 when the chronograph changes from a disengaged configuration to an engaged configuration and vice versa;
- FIG. 8a illustrates a top view of the rocker device, according to another embodiment, arranged to control the start and stop of a lateral type clutch chronograph, when the latter is in a disengaged configuration
- - Figure 8b illustrates a view similar to Figure 8a when the chronograph is in a clutched configuration.
- the rocker device 10 is used to control the start and stop of a chronograph comprising a mobile chronograph vertical clutch 40.
- the rocker device 10 comprises a push-button control 12 operable by a push-button (not shown) located for example at 2 o'clock.
- 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 leaf 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 levers 20, 30 comprises a distal part 26, 32 arranged on either side of the chronograph mobile 40 in order to form a clip.
- the main and secondary rockers are each integral and rigid.
- 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 an engaged configuration to a disengaged configuration and vice versa according to the detailed description which will be given later.
- the main rocker 20 comprises a part resembling an anchor provided with a first and a second beak 21a , 21b arranged to cooperate with the columns 17 of the column wheel 16, like an escapement lever.
- the anchor and the distal part 26 of the main rocker 20 are arranged on either side of the first pivot axis 24. 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 mobile 40 in the disengaged configuration, in a second locked angular position, so as to disengage the distal parts 26, 32 of the chronograph mobile 40 so that the latter passes from the disengaged configuration to the engaged configuration.
- the 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 peripheral flanks of the 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 a between them (FIG. 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.
- Each beak 21a, 21b of the main rocker 20 comprises an impulse plane 22 (FIGS. 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 FIGS. 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 mobile chronograph 40 includes a mobile second 44 in direct or indirect engagement with the gear train (not shown) of the watch movement, a chronograph axis 41 on which is mounted in free pivoting the second mobile 44, a clutch pad 46 mounted on the chronograph axis 41 as well as a clutch spring 52 arranged to cooperate with the clutch pad 46.
- the latter is preferably under the shape of a cup.
- the cup 46 further comprises the clutch spring 52 resting against a shoulder or a flange 42 made on the chronograph axis 41.
- the spring clutch 52 can be fixed or free to rotate on the chronograph axis 41.
- the mobile chronograph 40 further comprises a cam 54 for resetting the chronograph integral with the axis of the chronograph 41.
- This cam 54 is arranged to be actuated by a rocker (not shown ) 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 anchor of the main lever 20 bears against the peripheral side of a column 17 of the column wheel 16.
- the tip of the second beak 21b of the anchor 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 pad 46 of the chronograph mobile 40 at distance from the second mobile 44 (FIG. 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 clockwise around its pivot axis 31.
- the main latch 20 comprises a main coupling part 28 coupled to a secondary coupling part 34 of the secondary latch 30.
- This may for example comprise a finger, one end of which is arranged in a cutout made on the primary 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 peripheral side 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 state-of-the-art chronographs, 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 be described, an anchor provided with 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 around its pivot axis 24 according to the description which has been given with reference to FIGS. 7a to 7d.
- the clutch wheel 61 engaged with the second wheel 60 of the watch movement, 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 that the clutch wheel 61 engages with the chronograph wheel 62 as illustrated 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 repeated impacts of the wheel. clutch 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 stop of 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 the control of the start and the stop 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.
- 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 device of seesaw.
- 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.
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Measurement Of Unknown Time Intervals (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP21216291.1A EP4202577A1 (fr) | 2021-12-21 | 2021-12-21 | Dispositif de bascule d'un mécanisme horloger |
| PCT/IB2022/062283 WO2023119079A1 (fr) | 2021-12-21 | 2022-12-15 | Dispositif de bascule d'un mécanisme horloger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP4453666A1 true EP4453666A1 (fr) | 2024-10-30 |
Family
ID=78957421
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP21216291.1A Withdrawn EP4202577A1 (fr) | 2021-12-21 | 2021-12-21 | Dispositif de bascule d'un mécanisme horloger |
| EP22829906.1A Pending EP4453666A1 (fr) | 2021-12-21 | 2022-12-15 | Dispositif de bascule d'un mécanisme horloger |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP21216291.1A Withdrawn EP4202577A1 (fr) | 2021-12-21 | 2021-12-21 | Dispositif de bascule d'un mécanisme horloger |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US20240419127A1 (fr) |
| EP (2) | EP4202577A1 (fr) |
| JP (1) | JP2024545892A (fr) |
| CN (1) | CN118475885A (fr) |
| WO (1) | WO2023119079A1 (fr) |
Family Cites Families (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4825155Y1 (fr) * | 1969-05-09 | 1973-07-23 | ||
| CH623980GA3 (en) * | 1979-01-19 | 1981-07-15 | Timepiece with chronograph | |
| CH679969B5 (fr) * | 1990-12-11 | 1992-11-30 | Ebauchesfabrik Eta Ag | |
| US6975561B2 (en) * | 2002-06-13 | 2005-12-13 | Vaucher Manufacture Fleurier S.A. | Chronograph mechanism |
| EP2249215B1 (fr) * | 2003-05-09 | 2017-07-19 | Audemars Piguet (Renaud et Papi) SA | Montre-chronographe à affichage instantané de fractions de seconde |
| US7597471B2 (en) * | 2005-11-24 | 2009-10-06 | Vaucher Manufacture Fleurier S.A. | Time piece chronograph clockwork movement |
| CH698827B1 (fr) * | 2006-08-15 | 2009-11-13 | Chopard Manufacture Sa | Dispositif de remise à zéro pour une pièce d'horlogerie. |
| EP2015145B1 (fr) * | 2007-06-11 | 2013-05-01 | Chopard Manufacture SA | Dispositif d'embrayage vertical pour pièce d'horlogerie |
| EP2085832B1 (fr) * | 2008-02-04 | 2013-04-10 | Blancpain SA. | Dispositif de chronographe avec embrayage à friction |
| JP2010181396A (ja) * | 2008-12-08 | 2010-08-19 | Seiko Instruments Inc | クロノグラフ機構及びこれを備えたクロノグラフ時計 |
| JP6564561B2 (ja) * | 2013-05-31 | 2019-08-21 | ロレックス・ソシエテ・アノニムRolex Sa | 時間情報を記憶及び表示するための時計機構 |
| EP3182229B1 (fr) * | 2015-12-17 | 2018-04-25 | Breitling AG | Mécanisme de chronographe à rattrapante à isolateur |
| CH714406A1 (fr) * | 2017-12-05 | 2019-06-14 | Guenat Sa Montres Valgine | Mécanisme pour mouvement de montre chronographe. |
| JP7692435B2 (ja) * | 2020-04-29 | 2025-06-13 | パテック フィリップ ソシエテ アノニム ジュネーブ | カウントダウン・クロノグラフ機構及びストライク機構を備える時計ムーブメント |
| EP3904967B1 (fr) * | 2020-04-29 | 2022-09-28 | Patek Philippe SA Genève | Dispositif de commande d'un mécanisme horloger |
-
2021
- 2021-12-21 EP EP21216291.1A patent/EP4202577A1/fr not_active Withdrawn
-
2022
- 2022-12-15 US US18/722,405 patent/US20240419127A1/en active Pending
- 2022-12-15 WO PCT/IB2022/062283 patent/WO2023119079A1/fr not_active Ceased
- 2022-12-15 JP JP2024537427A patent/JP2024545892A/ja active Pending
- 2022-12-15 EP EP22829906.1A patent/EP4453666A1/fr active Pending
- 2022-12-15 CN CN202280085208.0A patent/CN118475885A/zh active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| US20240419127A1 (en) | 2024-12-19 |
| CN118475885A (zh) | 2024-08-09 |
| WO2023119079A1 (fr) | 2023-06-29 |
| EP4202577A1 (fr) | 2023-06-28 |
| JP2024545892A (ja) | 2024-12-13 |
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