EP3570119B1 - Mecanisme d'affichage d'un evenement periodique et piece d'horlogerie comportant un tel mecanisme - Google Patents

Mecanisme d'affichage d'un evenement periodique et piece d'horlogerie comportant un tel mecanisme Download PDF

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Publication number
EP3570119B1
EP3570119B1 EP18173028.4A EP18173028A EP3570119B1 EP 3570119 B1 EP3570119 B1 EP 3570119B1 EP 18173028 A EP18173028 A EP 18173028A EP 3570119 B1 EP3570119 B1 EP 3570119B1
Authority
EP
European Patent Office
Prior art keywords
dial
moon
periodic event
index
displaying
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.)
Active
Application number
EP18173028.4A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP3570119A1 (fr
Inventor
Guy Bove
Léna PIZZOLON
Pierre GEROLD
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.)
Chronometrie Ferdinand Berthoud SA
Original Assignee
Chronometrie Ferdinand Berthoud 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 Chronometrie Ferdinand Berthoud SA filed Critical Chronometrie Ferdinand Berthoud SA
Priority to EP18173028.4A priority Critical patent/EP3570119B1/fr
Priority to CN201910398415.1A priority patent/CN110501893B/zh
Publication of EP3570119A1 publication Critical patent/EP3570119A1/fr
Application granted granted Critical
Publication of EP3570119B1 publication Critical patent/EP3570119B1/fr
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Classifications

    • G—PHYSICS
    • G04—HOROLOGY
    • G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
    • 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
    • G04B19/02—Back-gearing arrangements between gear train and hands
    • 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
    • G04B19/06—Dials
    • G04B19/16—Shiftable dials, e.g. indicating alternately from 1 to 12 and from 13 to 24
    • 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
    • G04B19/26—Clocks or watches with indicators for tides, for the phases of the moon, or the like
    • G04B19/268—Clocks or watches with indicators for tides, for the phases of the moon, or the like with indicators for the phases of the moon

Definitions

  • the present invention relates to the field of watchmaking. It relates more particularly to a mechanism for displaying a periodic event such as the phases of the moon or a date indication.
  • the invention also relates to a timepiece comprising such a mechanism for displaying a periodic event.
  • Astronomical clocks and date watches have been well known since the 16th and 17th centuries, respectively, and numerous mechanisms intended for displaying periodic calendar events have been proposed in the state of the art.
  • the most common in wristwatches are the simple or perpetual calendar, as well as the phases of the moon.
  • these different mechanisms include a date or moon gear train comprising a star wheel with the number of teeth (7 for the weekly calendar, 12 for the months, 31 for the days, 59 for the moons, etc. ) is arranged in a kinematic connection on the one hand with the hours mobile of the finishing gear of a watch movement, a date or moon phase indicator with a disc or star being integral in rotation with the star wheel.
  • the cog is designed to take the star wheel one step per day to follow the normal calendar evolution and display the corresponding information on or in the face of the watch.
  • the object of the present invention is to provide a mechanism for retrograde display of a periodic event which is simpler to produce, more reliable in its operation and more precise than the mechanisms known from the prior art.
  • Such a display mechanism has the advantage of being of an extremely simple structure, not necessarily compact, and applicable both for the display of a date and of phases of the moon, while offering an additional playful character. for the user by functional mobility of the second part of the dial relative to the first part while providing a facility of greater display precision by an increased diameter of the toothed crown compared to conventional date gear wheels, and therefore to work on finer gear ratios.
  • the first and the second part of the dial are coplanar, each having an upper face called the display and a lower face called the gear train, the cam path and the index representative of a periodic event. to be displayed being arranged on said display faces of the second and first parts respectively.
  • said toothed crown is formed or fixed on the gear face of the second part of the dial.
  • the cam track comprises n identical and consecutive sections on the display face of the second part of the dial; preferably n is equal to 12.
  • the cam track consists of a projecting wall or a slide hollowed out in the display face of the second part of the dial.
  • said wall or slide is formed by plastic deformation, molding, deposition, removal of material, assembly or machining of the second part of the dial.
  • the follower member is a linear feeler movable in translation in a direction radial to the second part of the dial, said feeler comprising a rack arranged in engagement with a pinion integral with the indicator member.
  • the follower member is a movable finger rotatably secured to the indicator member about an axis of rotation perpendicular to the plane of the dial.
  • the follower is held in permanent support in the cam track by a spring.
  • the first part of the dial is circular and concentric with the second part of the dial.
  • the periodic event is a phase of the moon, said index representing the different phases of the moon over a lunation of 29.53 days and the cam path being configured such that the indicator member indicates continuously follows the representations of the consecutive phases of a lunation and returns to a so-called “new moon” position at the end of a lunation.
  • said index representing the different phases of the moon over a half-moon
  • the cam track being configured such that the indicator member runs through said index in a direction of rotation over a half-moon from a so-called “new moon” position up to a so-called full moon position, then traverses said index in the opposite direction over the following half-moon.
  • a moon phase display mechanism comprises a second index indicating the increasing or decreasing nature of a moon phase positioned on one of the first and second parts of the dial. and a cursor positioned on the other of the first and second parts of the dial, said index being configured so that the cursor is positioned opposite the appropriate index indication during the entire period of growth, respectively decrease of the moon on a lunation.
  • the periodic event can also be a date.
  • the index will include indices of the days of the month and the toothed crown could for example be a date crown.
  • the subject of the invention is also a timepiece comprising a mechanical or quartz watch movement and a display mechanism as defined above, the display gear of which is coupled to the mobile of the hours of the watch movement by said toothed crown.
  • Such a display mechanism is in particular intended to be mounted in a timepiece such as a watch, in kinematic connection with a watch movement, in particular a mechanical movement, of the timepiece, both not shown on the figures.
  • This mechanism comprises in the first place, as shown in the figure 1 , a display dial C of a timepiece such as a watch in top view, on which the visible elements of the display mechanism of the invention are visible.
  • These elements include in particular in the example shown a first part of dial C1, of substantially circular shape, and a second part of dial C2, in the form of a ring arranged concentrically and coplanar with the first part C1.
  • Each of the parts C1, C2 of the dial C has an upper face called the display and a lower face called the gear train.
  • the dial ring C2 is advantageously arranged to be movable in rotation around the first part C1 by means of a display gear R, shown in FIG.
  • figure 2 providing a kinematic connection of the ring C2, provided with an internal toothed ring 1, formed or fixed on the gear face of the ring C2 of the dial. with the hour wheel 3 of the finishing gear of a watch movement via a pinion 2 driven on the axis of rotation of the hour wheel 3.
  • the first part C1 of the dial C comprises on its display face a main moon index 14 representative of a periodic event to be displayed, in this case the phases of the moon over a complete lunation.
  • said main moon index 14 comprises a circular track 14a indicating the days on an increasing phase of a lunation from a position "0", called “new moon” to a position called full. moon, indicated by a number 14, associated with a graduated scale 14b representative of the evolution of the moon's luminosity on this increasing phase, said graduated scale 14b being composed of segments of increasing and progressive lengths, the largest of which is arranged opposite the runway sector 14a corresponding to the fourteenth day of lunation.
  • An indicator member consisting of a so-called moon hand 8 is associated with the main moon index 14 in order to progressively indicate, in the manner of a conventional hourly date indication, on which day of the lunation we are.
  • This moon hand 8 is mounted to be movable in rotation with respect to the fixed part of the dial C1 so as to be able to pivot on its axis above the dial C or, where appropriate below the latter, in particular if the fixed part C1 of said dial C is transparent.
  • Said moon hand 8 is furthermore arranged in a kinematic connection ( fig.
  • the cam follower member 7 advantageously bears in abutment at the level of a contact end 71 on a cam track 13 formed on the display face of the movable ring C2 of the dial C.
  • Said cam track 13 is advantageously made up of n identical and consecutive sections 13s, in this case of twelve sections 13s each composed of two successive and consecutive cam segments 13a, 13b such that the contact end 71 of the cam follower 7 slides through the entire d 'a section 13s over a complete lunation, and therefore traverses a said cam segment 13a, 13b over a period equal to half a lunation during the rotation of the ring C2 of the dial C under the effect of the display gear R via its toothed ring 1 as will be described below.
  • the number of sections 13s of the cam path 13 is determined by the periodic event to be displayed by the display mechanism of the invention. In this case, 12 sections 13s are used to display the 12 complete lunations of a 12-month calendar year.
  • the cam track 13 is preferably made of a projecting wall or of a slide hollowed out in the display face of the second part C2 of the dial, in particular for example by plastic deformation, molding, deposition, removal of material, assembly or machining of the second part C2 of the dial C.
  • the moon hand 8 is advantageously rotated vis-à-vis the main moon index 14 in a retrograde rotational movement, traversing on a first half-moon the entire track 14a of the index of main moon 14 in one direction while the contact end 71 of the cam follower 7 slides on a first cam segment 13a, 13b, then on the next half-moon doing the reverse traversing in the other direction while the follower cam 7 slides on the other cam sector 13b, 13a respectively.
  • the cam track 13 is advantageously configured in the embodiment shown so that the sliding of the contact end 71 of the cam follower 7 on a segment 13b of the cam track 13 induces a sinister translational movement of the cam follower 7 in the slot 17 and a sliding on a segment 13a a dextral translational movement, respectively a clockwise rotation movement and a counterclockwise rotation movement of the needle 8 vis-à-vis the index 14.
  • the segments 13a, 13b are oriented relative to each other successively to form the cam path 13 over the entire upper surface of the ring C2 at an obtuse angle ⁇ open towards the center of the dial C of between 110 ° and 135 °, thus giving the cam track 13 a serrated shape.
  • a leaf spring 10 is advantageously arranged integral with a first end of the pinion 9 carrying the needle 8 and fixed to a second end on the fixed part C1 of the dial C, or as a variant on a plate of the watch movement associated with the display device of the invention.
  • the display mechanism of the invention also comprises a secondary index 15 indicating the increasing or decreasing character of the moon.
  • This secondary index 15 simply comprises two contiguous sectors 15a, 15b respectively bearing a "+” sign and a "-" sign and of equal length arranged on a edge of the fixed part C1 of the dial C such that the middle 15m of the two sectors 15a, 15b is aligned radially with a moon cursor 18 on the mobile ring C2 of the dial C when, as shown in figure 1 , the contact end 71 of the cam follower 7 is located in the angle ⁇ between two segments 13a, 13b of the cam track 13, the needle 8 then being facing the graduation "14", that is to say - say mid-month and full moon.
  • the C2 ring carries 12 moon sliders 18 distributed regularly on the periphery
  • the dial C of the display mechanism of the invention finally comprises, in the example shown, but in an accessory manner and not essential to the display mechanism of the invention, a secondary dial 16 for displaying the time located at 12 o'clock. and above the main dial C, this secondary display dial 16 being associated with hour and minute hands respectively driven on a barrel integral with the hour wheel 3 ( fig.2 ) and on the roadway coaxial with the barrel of the hour hand in a conventional manner.
  • the figure 2 shows in detail the constitution of the display gear R of the display mechanism of the invention making it possible to achieve the kinematic connection between the hours wheel 2 of a watch movement and the ring C2 of the display dial C of the mechanism display, which carries the cam path 13 actuating via the cam follower the movement of the needle 8 with respect to the index 14 and moving the cursor 18 opposite the secondary index 15 to indicate the increasing or decreasing nature of the moon over a half-lunation indicated by index 14 and hand 8.
  • the moon display gear R is thus arranged such that the first moon wheel 4 meshes through its toothing z2 the toothing z1 of the hours pinion 2 on the one hand and the first moon pinion 5 meshes via its toothing z3 with the first intermediate wheel 6, which itself meshes with the 2nd wheel groups 12 arranged in kinematic connection with the moon pinion 11 with the ring C2 moon via the ring gear 1.
  • This kinematic chain thus makes it possible to drive with a suitable reduction the ring C2 in rotation in a counterclockwise direction from the hour wheel 3, this rotation allowing through the cam track 13 on which the cam follower 7 is supported to move the moon hand 8 , coupled by its pinion 9 to the rack of the cam follower 7, vis-à-vis the main moon index 14.
  • the display mechanism of the present invention thus advantageously provides an original moon phase display with a hand moving in a retrograde movement, without a schematic visual representation of the moon, as provided by an overwhelming majority of displays of the moon.
  • moon phases of the prior art It also does not require any moon disc, and uses a mobile part of the dial C2 as an actuating cam of the moon hand 8, which provides a simplification of the display mechanism, as well as a double animation. in the dial by displacement of the ring C2 around the fixed central part C1 which causes the displacement of the moon hand 8 vis-à-vis the main moon index 14 and the moon cursors 18 vis-à-vis -vis of the secondary index 15.
  • Another major advantage of the display mechanism of the invention is its increased precision compared to known moon phase display mechanisms, conferred in particular by the large toothing z6 of the ring gear 1 of the ring C2.
  • the figure 3A represents the display of a waxing moon on the 8th day of the lunar month.
  • the crescent character of the moon is then indicated by the radial alignment of a cursor 18 on the ring C2 with the sector 15a bearing the indication “+” on the secondary index 15.
  • the C2 ring continues to rotate counterclockwise so that the cam follower 7 slides on the segment 13b of the cam track until it reaches a position of equilibrium. between said segment 13b and the consecutive sector 13a, in the angle ⁇ , as shown in figure 3B .
  • the moon hand 8 is then in a substantially horizontal position pointing towards the upper end of the track 14a of the main moon index 14, facing the graduation 14 and the largest luminosity segment. So it's the full moon, and the middle marker 15m of the secondary index 15 is then aligned with a cursor 18 on the ring C2, as shown figure 4B .
  • the figure 3C finally represents the display of a waning moon on the 22nd day of the lunation.
  • the moon hand 8 is then in its retrograde movement back to "0" of track 14a of the main moon index 14.
  • the decreasing character of the moon is then indicated by l radial alignment of a cursor 18 on the ring C2 with the sector 15b bearing the indication "-" on the secondary index 15, as shown in Fig. 4C .
  • the display mechanism of the invention thus allows by its configuration a simplified and animated representation of a new kind of a periodic event such as the phases of the moon as previously described or even according to a similar mechanism for the display of dates.
  • an annual calendar can be displayed simultaneously with the moon phases, for example, by means of a month disc carried on a date star with 12 teeth rotatably mounted on the fixed part. of the dial C, a sensor movable in translation in a manner analogous to the cam follower 7 of the moon hand 8 being arranged and biased by a spring between the cam path 13 and the date star so as to make said star pivot by one step each time the probe passes from a section 13s of the cam track 13 to a consecutive section 13s.
  • the date of the date can then be displayed where appropriate by a hand actuated in a manner substantially identical to the moon hand 8, or a date disc in accordance with the conventional date mechanisms of the prior art.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Astronomy & Astrophysics (AREA)
  • Electromechanical Clocks (AREA)
EP18173028.4A 2018-05-17 2018-05-17 Mecanisme d'affichage d'un evenement periodique et piece d'horlogerie comportant un tel mecanisme Active EP3570119B1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP18173028.4A EP3570119B1 (fr) 2018-05-17 2018-05-17 Mecanisme d'affichage d'un evenement periodique et piece d'horlogerie comportant un tel mecanisme
CN201910398415.1A CN110501893B (zh) 2018-05-17 2019-05-14 用于显示周期性事件的显示机构和包含显示机构的钟表

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP18173028.4A EP3570119B1 (fr) 2018-05-17 2018-05-17 Mecanisme d'affichage d'un evenement periodique et piece d'horlogerie comportant un tel mecanisme

Publications (2)

Publication Number Publication Date
EP3570119A1 EP3570119A1 (fr) 2019-11-20
EP3570119B1 true EP3570119B1 (fr) 2021-02-24

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EP18173028.4A Active EP3570119B1 (fr) 2018-05-17 2018-05-17 Mecanisme d'affichage d'un evenement periodique et piece d'horlogerie comportant un tel mecanisme

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EP (1) EP3570119B1 (zh)
CN (1) CN110501893B (zh)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111338200A (zh) * 2020-03-27 2020-06-26 飞亚达精密科技股份有限公司 一种中心指针式日历和大月相显示机构
EP4113218A1 (fr) * 2021-07-02 2023-01-04 Jean-Marc Wiederrecht Mécanisme d'affichage combiné d'un quantième lunaire et des phases de la lune pour mouvement horloger
CN113376997A (zh) * 2021-07-13 2021-09-10 布加迪(广州)贸易有限公司 一种定时启动的动偶结构

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CH690630A5 (fr) * 1997-03-24 2000-11-15 Leschot Sa Montre comportant un dispositif d'affichage rétrograde du quantième.
JP3165070B2 (ja) * 1997-04-25 2001-05-14 セイコーインスツルメンツ株式会社 カレンダ付電子時計
CH696218A5 (fr) * 2001-08-07 2007-02-15 Piguet Frederic Sa Pièce d'horlogerie à quantième comprenant un dispositif d'équation du temps marchante.
CH703546B1 (fr) 2001-12-20 2012-02-15 Piguet Frederic Sa Pièce d'horlogerie comprenant un mécanisme indicateur des phases de lune à retour rétrograde.
EP1406131A1 (fr) * 2002-10-01 2004-04-07 Manufacture Roger Dubuis S.A. Dispositif mécanique d'affichage des heures et des minutes
CN2613793Y (zh) * 2003-04-14 2004-04-28 上海伯利恒钟厂 附加于机械报时摆钟上的短秒针机构
CH701836B1 (fr) 2004-11-12 2011-03-31 Jerome De Witt Dispositif d'affichage du quantième et pièce d'horlogerie comportant un tel dispositif d'affichage.
EP1677165B1 (fr) * 2004-12-30 2011-11-02 Asulab S.A. Pièce d'horlogerie à calendrier mécanique chinois
US7961560B2 (en) * 2005-01-24 2011-06-14 Seiko Epson Corporation Display device for timepiece, movement, and timepiece
CH703800B1 (de) * 2006-03-30 2012-03-30 Ronda Ag Mechanismus zur Bewegung eines Anzeigers einer Uhr.
JP2012013457A (ja) * 2010-06-29 2012-01-19 Techno Ark Company Limited 暦時計
EP2503410B1 (fr) * 2011-03-22 2014-05-21 Montres Breguet SA Mecanisme de calendrier comportant un correcteur rapide de mois
EP2869139B1 (fr) * 2013-11-04 2020-02-05 Chronométrie Ferdinand Berthoud Mécanisme de tourbillon
EP3070538B1 (fr) * 2015-03-18 2020-03-11 Nogerah SA Mecanisme d'affichage retrograde pour mouvement horloger

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Publication number Publication date
CN110501893A (zh) 2019-11-26
CN110501893B (zh) 2022-03-04
EP3570119A1 (fr) 2019-11-20

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