EP4581427A1 - Dispositif de correction bidirectionnelle et mouvement horloger comportant un tel dispositif - Google Patents
Dispositif de correction bidirectionnelle et mouvement horloger comportant un tel dispositifInfo
- Publication number
- EP4581427A1 EP4581427A1 EP23749120.4A EP23749120A EP4581427A1 EP 4581427 A1 EP4581427 A1 EP 4581427A1 EP 23749120 A EP23749120 A EP 23749120A EP 4581427 A1 EP4581427 A1 EP 4581427A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- correction
- wheel
- display device
- date
- control
- 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
- 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
- G04B19/25—Devices for setting the date indicators manually
-
- 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
- G04B27/00—Mechanical devices for setting the time indicating means
- G04B27/004—Mechanical devices for setting the time indicating means having several simultaneous functions, e.g. stopping or starting the clockwork or the hands
Definitions
- the present invention relates to a bidirectional correction device for a watch movement allowing the correction of at least two displays of a calendar display device.
- correction mechanisms have already been proposed making it possible to correct, for example, the date display using a crown, pusher or corrector type control member.
- correction mechanisms include a train that meshes or engages with the finishing train of the watch movement. Examples of such mechanisms are disclosed in documents EP 3 333 642, EP 2 945 024, EP 1 043 634 and CH 703 451.
- a calendar module When a calendar module is used, it is generally in order to be able to adapt to several different watch movements while allowing a sophisticated calendar display such as an annual or perpetual calendar and/or with other displays such as day of the week, week number, month, year and/or moon phase.
- the date control finger can be arranged elastically in the force transmission mechanism so as to be able to elastically retract from the date wheel when the latter is moved by the correction wheel while the date control finger date is on the path of the date wheel.
- This configuration ensures that the correction is not prevented between 11 p.m. and 1 a.m. each day.
- this function is not essential because it is rare for corrections to be made at this time of the night, it is proposed as an advantageous option of the invention, to avoid, for example, desynchronization of the displays and also to protect the other teeth in contact.
- the correction device does not act on the transmission mechanism of force coupled to the watch movement in the usual way but has its own kinematic chain acting on the calendar display device in order to be able to adapt to a very wide variety of calendar display devices.
- the correction device makes it possible to increase or decrease the value of the day of the week display at the same time as that of the date display.
- the day control finger can be arranged elastically in the force transmission mechanism so as to be able to elastically retract from the day wheel when the latter is moved by the correction gear while the day control finger day is on the path of the day wheel.
- This configuration ensures that the correction is not prevented between 11 p.m. and 1 a.m. each day.
- this function is not essential because, as mentioned above, it is rare for corrections to be made at this time of the night, it is offered as an advantageous option of the invention.
- the force transmission mechanism may comprise a wheel end of month control arranged to control an end of month wheel of the calendar display device to increment the date display by at least one additional unit as a function of the number of days in the month, the correction gear of the bidirectional correction device being arranged to control the end of month wheel of the calendar display device independently of the force transmission mechanism so as not to disturb the latter during the correction phases.
- Figure 1 is a schematic view of an example of a timepiece according to the invention
- Figure 2 is a perspective view of a calendar module comprising an example of a correction device according to the invention
- Figure 3 is a view similar to Figure 2 in which elements have been removed for a better understanding of the invention
- Figure 4 is a perspective view of the example of correction device according to the invention
- Figure 5 is a top perspective view of an end-of-month control wheel superimposed on an element of an example of correction gear according to the invention
- Figure 6 is a perspective view from below of an end-of-month control wheel with an elastic control finger superimposed on an element of the example of correction cog according to the invention
- Figure 7 is a bottom perspective view of an example of a correction mobile according to the invention.
- orientations are the orientations of the figures.
- the terms “upper”, “lower”, “left”, “right”, “above”, “below”, “forward” and “backward” generally mean in relation to the meaning of representation of the figures.
- the term “horizontal” is therefore understood as a direction parallel to the main section of the plate of the watch movement and the term “vertical” is understood as a direction perpendicular to the horizontal direction and parallel to the thickness of the plate of the watch movement. watch movement.
- the axes (A1, A2, etc.) are arbitrarily declared as a first axis, a second axis, etc. It is a simple nomenclature to differentiate and name non-identical geometric elements. This nomenclature does not imply a priority of one axis over another and one can easily interchange such designations without departing from the scope of this description. This nomenclature does not imply an order either, that is to say that a third axis could be used without a first axis and/or a second axis being necessary for the implementation of the invention.
- fixed part we mean all the elements or bodies fixed in relation to the given frame of reference such as for example in relation to the calendar module or the watch movement, that is to say static in relation to the board of the calendar module (or the board itself of the calendar module) or static in relation to the plate of the watch movement (or the plate itself of the watch movement).
- bidirectional correction device 21 all types of devices capable of modifying at least two calendar displays at the same time both to increase their value and to decrease their value. This device is very advantageous because, depending on the moment of the correction, it can be quicker to reduce the days, date and month of the display device than the reverse.
- the correction control member 4 can be of different types such as a rod (which can be the same as for the time correction and the winder) extended by a crown as in the example in the figure 1, a rotating bezel, two pushers (one to increase the display value and the other to decrease its display value) or a rotating back.
- a rod which can be the same as for the time correction and the winder
- a crown as in the example in the figure 1
- a rotating bezel two pushers (one to increase the display value and the other to decrease its display value) or a rotating back.
- calendar module 1 we mean a subassembly intended to be fixed on a watch movement 3 to add at least one additional calendar display function.
- the calendar module 1 may include several components allowing a calendar display from the simplest to the most sophisticated such as a simple, annual, perpetual or secular calendar and/or with other displays such as the day of the week, the number of the week, the month, the year, the day-night or morning/afternoon display and/or the moon phase of all types (display of the moon seen from the northern or southern hemisphere, or even the 'moon display for the northern and southern hemisphere).
- the invention relates to a correction device 21 mounted in a calendar module 1 intended to be mounted on a watch movement 3 in a timepiece 2.
- the correction device 21 according to the invention can be applied, more generally, to any watch movement 3 without departing from the scope of the invention and not only to a calendar module 1.
- the explanation of the invention is made below in the particular embodiment where the correction device 21 is installed in a calendar module 1.
- the calendar module 1 is coupled at the center of its board 7 to an output shaft (not shown) of the watch movement 3 such as that secured, preferably, to the wheel hours.
- the output shaft (not shown) of the watch movement 3 is thus permanently coupled to a force transmission mechanism 5 intended to drive the calendar display device 11.
- a force transmission mechanism 5 intended to drive the calendar display device 11.
- other output shafts of the watch movement 3 centered or not on the board 7 can be chosen without departing from the scope of the invention.
- the calendar module 1 can also be coupled to a return of a clutch mechanism of the watch movement 3 in order to be able to couple the correction of the time display 17 (usually last notch taken from the crown 4) and the correction of at least one of the displays 16A, 16B, 16C, 16D, 16E of the calendar display device 11 (usually an intermediate notch taken from the crown 4).
- the correction of at least one of the displays 16A, 16B, 16C, 16D, 16E of the calendar display device 11 may include dedicated elements mounted only in the calendar module 1.
- the correction device 21 makes it possible to maintain synchronization between the different displays 16A, 16B, 16C, 16D, 16E, while a correction of only one would risk losing this synchronization.
- the timepiece 2 comprises a calendar display device 11 comprising a display with a date hand 16A, a display with a month hand 16B, a display with year discs 16C, a day of the week needle display 16D and a moon phase disc display 16E.
- the timepiece 2 further comprises a time hand display 17 (hours and minutes) mounted in the usual manner on the watch movement 3.
- the force transmission mechanism 5 mainly comprises a reduction mechanism 8, a gear train 9, a date control finger 6A, a day control finger 6B and a wheel 6C end of month order.
- the reduction mechanism 8 is formed of internal teeth 8A of the end-of-month control wheel 6C forming an external sun gear permanently coupled with three satellites 8B pivotally mounted on the board 7.
- the three satellites 8B are coupled permanently to a pinion forming a central sun gear of an output shaft (not shown) of the watch movement 3 secured to the hour wheel.
- the reduction mechanism 8 thus makes it possible to impose a rotation of the end-of-month control wheel 6C every twenty-four hours around the first axis A1 in the center of board 7 of calendar module 1.
- the end-of-month control wheel 6C is therefore the mechanical element which distributes the force received from the watch movement 3 to the rest of the force transmission mechanism 5.
- the date control finger 6A is formed in the board of the wheel 9A of the cog 9 which is integral in movement with the end of month control wheel 6C.
- the wheels 9A and 6C are stacked one on top of the other.
- the date control finger 6A is intended, depending on its angle of rotation relative to the first axis A1, to be temporarily coupled once a day with the date wheel 12 of a calendar display device 11 to increment by one unit on the date display 16A every twenty-four hours during normal operation of the watch.
- the date control finger 6A is arranged elastically on the wheel 9A in the force transmission mechanism 5 so as to be able to retract elastically towards the first axis A1 when subjected to a stress greater than a predetermined value.
- the date control finger 6A thus comprises a body 6A1 oriented substantially radially and arranged in the wheel 9A using two flexible rods 6A2 substantially perpendicular on either side of the body 6A1.
- the date control finger 6A projects from the periphery of the wheel 9A and is capable, when subjected to a stress greater than a predetermined value (which is greater than the stress necessary to drive the wheel 12 of date in normal operation) to retract elastically (by deformation of the rods 6A2) towards the first axis A1.
- a predetermined value which is greater than the stress necessary to drive the wheel 12 of date in normal operation
- the finger 6A (and therefore the body 6A1), the flexible rods 6A2 and the wheel 9A are made in a single piece obtained by addition of material (three-dimensional printing, growth in a mold, etc.) or by removal of material (mechanical machining, chemical engraving, etc.).
- the date display 16A is of the perpetual type, that is to say it changes by two date units at the end of the month of April, June, of September and November but also of four or three calendar units at the end of the month of February depending on whether the current year is a leap year or not.
- the calendar display device 11 is also capable of managing the movements of the month 16B and year 16C displays by coupling the date wheel 12 with a dedicated cog which will not be explained in more detail because using reduction gears, of known parameter setting from a three hundred and sixty degree rotation of the date wheel 12 each month.
- the calendar display device 11 is also capable of managing the movements of the moon phase display 16E by coupling the wheel 9B with a dedicated cog which will not be explained in more detail because it uses cogs. reduction, parameterization known per se from a rotation of three hundred and sixty degrees of the wheel 9B each day.
- the day control finger 6B is arranged elastically on the wheel 9B in the force transmission mechanism 5 of so as to be able to retract elastically towards the second axis A2 when it is subjected to a stress greater than a predetermined value.
- the day control finger 6B thus comprises a body 6B1 oriented substantially radially and arranged in the wheel 9B using four flexible rods 6B2 substantially perpendicular on either side of the body 6B1.
- the day control finger 6B projects from the periphery of the wheel 9B and is capable, when subjected to a stress greater than a predetermined value (which is greater than the stress necessary to drive the day star 10 in normal operation) to retract elastically (by deformation of the rods 6B2) towards the second axis A2.
- a predetermined value which is greater than the stress necessary to drive the day star 10 in normal operation
- the finger 6B (and therefore the body 6B1), the flexible rods 6B2 and the wheel 9B are made in a single piece obtained by addition of material (three-dimensional printing, growth in a mold, etc.) or by removal of material (mechanical machining, chemical engraving, etc.).
- the calendar module 1 comprises a device 21 for bidirectional correction of at least two of the displays 16A, 16B, 16C, 16D, 16E and comprising the date display 16A of the device 11 display.
- the bidirectional correction device 21 comprises at least one correction mobile 22, arranged to control the date wheel 12 of the calendar display device 11 independently in relation to to the force transmission mechanism 5 so as not to disturb the latter during the correction phases.
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Electromechanical Clocks (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP22192702 | 2022-08-29 | ||
| PCT/EP2023/071974 WO2024046724A1 (fr) | 2022-08-29 | 2023-08-08 | Dispositif de correction bidirectionnelle et mouvement horloger comportant un tel dispositif |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP4581427A1 true EP4581427A1 (fr) | 2025-07-09 |
Family
ID=83151932
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP23749120.4A Pending EP4581427A1 (fr) | 2022-08-29 | 2023-08-08 | Dispositif de correction bidirectionnelle et mouvement horloger comportant un tel dispositif |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP4581427A1 (fr) |
| JP (1) | JP2025527587A (fr) |
| CN (1) | CN119816787A (fr) |
| WO (1) | WO2024046724A1 (fr) |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11183649A (ja) | 1997-12-25 | 1999-07-09 | Seiko Instruments Inc | 表示修正装置付き時計 |
| CH703451B1 (fr) | 2010-07-21 | 2015-03-13 | Blancpain Sa | Mécanisme de quantième avec correcteur de date bidirectionnel et pièce d'horlogerie comportant un tel mécanisme de quantième. |
| EP2945024B1 (fr) | 2014-05-14 | 2017-07-12 | ETA SA Manufacture Horlogère Suisse | Bascule d'horlogerie |
| EP3333642B1 (fr) | 2016-12-06 | 2019-08-21 | ETA SA Manufacture Horlogère Suisse | Mécanisme horloger de correction bidirectionnel d'une pluralité d'affichages |
-
2023
- 2023-08-08 EP EP23749120.4A patent/EP4581427A1/fr active Pending
- 2023-08-08 JP JP2025509173A patent/JP2025527587A/ja active Pending
- 2023-08-08 CN CN202380062868.1A patent/CN119816787A/zh active Pending
- 2023-08-08 WO PCT/EP2023/071974 patent/WO2024046724A1/fr not_active Ceased
Also Published As
| Publication number | Publication date |
|---|---|
| JP2025527587A (ja) | 2025-08-22 |
| WO2024046724A1 (fr) | 2024-03-07 |
| CN119816787A (zh) | 2025-04-11 |
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