EP0479147B1 - Pièce d'horlogerie du type mécanique et/ou électromécanique - Google Patents

Pièce d'horlogerie du type mécanique et/ou électromécanique Download PDF

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Publication number
EP0479147B1
EP0479147B1 EP91116519A EP91116519A EP0479147B1 EP 0479147 B1 EP0479147 B1 EP 0479147B1 EP 91116519 A EP91116519 A EP 91116519A EP 91116519 A EP91116519 A EP 91116519A EP 0479147 B1 EP0479147 B1 EP 0479147B1
Authority
EP
European Patent Office
Prior art keywords
wheel
mechanisms
display
timepiece according
timepiece
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.)
Expired - Lifetime
Application number
EP91116519A
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German (de)
English (en)
French (fr)
Other versions
EP0479147A1 (fr
Inventor
Laszlo Ferenczy
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.)
ETA SA Manufacture Horlogere Suisse
Ebauchesfabrik ETA AG
Original Assignee
Ebauchesfabrik ETA AG
Eta SA Fabriques dEbauches
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 Ebauchesfabrik ETA AG, Eta SA Fabriques dEbauches filed Critical Ebauchesfabrik ETA AG
Publication of EP0479147A1 publication Critical patent/EP0479147A1/fr
Application granted granted Critical
Publication of EP0479147B1 publication Critical patent/EP0479147B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • 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
    • 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 a timepiece of the mechanical and / or electromechanical type, and in particular a timepiece known as the calendar and moon phase.
  • this invention relates to timepieces, such as wristwatches or horometric movements, which are small and which include a date display, that is to say a date display, associated a moon phase display to inform the user of the synodic revolution of the moon, called lunation.
  • timepieces such as wristwatches or horometric movements, which are small and which include a date display, that is to say a date display, associated a moon phase display to inform the user of the synodic revolution of the moon, called lunation.
  • this invention relates to a timepiece with dates and moon phases in which the date wheel, which supports a date display means and which conventionally comprises 31 teeth, is arranged at the center of this part, coaxially with the hour and minute canons.
  • timepieces comprising displays of the date and moon phases
  • the essential problem in timepieces is to provide the user with means of rapid correction of these two displays to compensate for this, ie an interruption of the current supply in the case of an electromechanical part, i.e. the absence of actuation of the winder for parts of the purely mechanical type.
  • a first method for modifying the display of the date and moon phases consists in using the winding stem in its position and its function for resetting the hour of the hour and minute indicator means, then rotating these indicator means as many times as it is necessary to spend several days, even several weeks.
  • the wheels of the date and moon phases respectively are made up of stars, that is to say discs with triangular teeth, which must be driven by an organ which is not in constant grip with these stars but which, over a predetermined period, namely every 24 hours, comes to actuate successively or simultaneously these two stars.
  • This drive member can be constituted, for example, by a pin which is integral with a wheel and which meshes with a reference of the horometric movement.
  • the period of time during which the pin is engaged with the corresponding star is relatively long, so that this probability is far from negligible.
  • Timepieces generally cannot withstand the reversible action of the stars and in this case, one of the components would block or break.
  • Patent CH no. 4542 which dates from 1891 proposes an improved date mechanism which addresses this problem.
  • This mechanism therefore conventionally includes a date star for displaying the dates, as well as a so-called moon star for displaying the moon phases.
  • These two stars are successively driven by a single driving member which is linked to a reference of the horometric movement and which is equipped, on its side, with a bracket subjected to the action of a spring. This square comes into engagement, sometimes with the date star, sometimes with the moon phase star to cause their advance in combination with jumper springs.
  • this date mechanism includes discounts, namely elongated levers pivotally mounted on the movement plate, a first free end of which actuates one of the corresponding stars, while a second end is available outside the box of the watch.
  • the user by pressing these discounts directly solicits the date or lunar stars, and he can therefore modify the display in a corresponding manner.
  • the bracket of the driving member is elastically connected to the wheel which carries it, this bracket by a ratcheting phenomenon supports the action of the rebates without passing it on the wheel, therefore on the other components of the movement. .
  • this mechanism can hardly be fitted to a timepiece in which the date star is centered on the movement since, in such a case, the moon phase star should be placed even more outside the movement. , given that the axes, respectively of the date star, of the moon phase star and the driving organ are arranged on a line.
  • this driving member comprises a cam mounted freely on a wheel which is driven by the time movement. On this cam are arranged two fingers, one being intended to successively drive the date star, the other that of the moon phases.
  • This cam is driven by the wheel of which it is integral, by means of a pin housed in a partial clearance formed at the periphery of the cam. In this clearance are formed two shoulders capable of abutting against the pin.
  • the cam can leave the pin which pushes it since this cam is mounted free relative to the drive wheel.
  • document CH 671 317 describes a timepiece comprising a display of the moon phases as well as a display of the day and night periods.
  • this arrangement includes a driving member making it possible to control the two displays of the moon phases and of the day and night periods respectively, this cannot absorb the displacement of either of the display mechanisms indifferently above when this driving member is engaged with one of these mechanisms while the other undergoes the action of correction means. Thus, this arrangement can be damaged during manual correction actions performed by the user.
  • this arrangement is complex since it comprises two separate devices for meshing the two display mechanisms, and not just one for these two mechanisms.
  • document EP 0 308 793 describes a watch movement comprising a display of the moon phases and a display of the dates carried by an internally toothed ring.
  • These two displays are driven by a common driving member constituted by a wheel which is carried by an axis of particular shape.
  • the correction of the central display of the moon phases is done by a pin carried by the driving member, the correction of the date being done by this same member or by another mechanism controlled by the setting crown. hour.
  • This arrangement is also very complex in its form and in its operation.
  • the invention aims to remedy these drawbacks by proposing a timepiece of the mechanical and / or electromechanical type, and in particular a timepiece providing displays in particular calendars and moon phases, which is small, achievable at a very low cost and which includes means for rapid correction of these displays, simple and not altering the compactness of the whole.
  • a timepiece which comprises a first display mechanism 1, in particular a date display, as well as a second display mechanism 2, such as a display of the moon phases.
  • this timepiece comprises, on the one hand, means 4 for rapid correction of the two display mechanisms 1 and 2 respectively, and on the other hand, a driving member 6 which is shaped to be able to cause successively the displacements of these mechanisms.
  • the date display mechanism 1 comprises a date wheel 8, of the barrel wheel type, the barrel 9 of which is mounted to rotate freely on a central barrel 11 of a wheel hours 10.
  • the central hours 11 gun is itself mounted coaxially on a 12 minutes gun, this assembly being able to pivot around an axis of rotation Z1.
  • the barrel 9 of the date wheel 8, as well as the cannons 11 and 12 respectively of the hours and the minutes are intended to receive indicator hands generally evolving above a dial on which are entered appropriate indications (not shown).
  • the date wheel 8 is disposed in axial support freely on a reference 14 driven out on the hour-barrel wheel 10.
  • the reference 14 is arranged directly below the date wheel 8, and it is sandwiched between the latter and the 10 hour cannon wheel.
  • the driving member 6 comprises a wheel 16 whose external peripheral toothing 28 meshes and is in permanent engagement with the reference 14.
  • the reference 14 has 12 teeth and rotates over 12 hours, while the wheel 16 of the driving member 6 has 24 teeth and rotates over 24 hours.
  • the wheel 16 is mounted to rotate freely, about a geometric axis Z2, on a pivot 18 driven into a plate 20. This wheel 16 is also in axial support, by its rear flank, on the plate 20. On this wheel 16 is formed a single drive finger 22 which is shaped to mesh successively with the two display mechanisms 1 and 2, and more particularly, on the one hand, directly with the date wheel 8 of the first mechanism 1, thus on the other hand, directly with a moon phase wheel 24 of the second mechanism 2.
  • the drive finger 22 is integral with an elastic arm 26 with which it preferably comes from one material.
  • the elastic arm 26 is formed directly in the body or plate C of the wheel 16, and it therefore preferably also comes from the material with this wheel 16.
  • the body or plate C of the wheel 16 is partially hollowed out around the pivot 18, between the latter and the outer peripheral toothing 28 of the wheel 16.
  • the opening or recess thus produced, referenced 30, extends partially curved and centered on the axis of rotation Z2 of the wheel 16.
  • the elastic arm 26 is essentially housed in this opening 30.
  • the base of the elastic arm 26 extends and projects coplanarly with the wheel 16 from an extreme edge 31 of the opening 30, in the direction of the other extreme edge 33 of this opening and following an arc centered on the axis of rotation Z2.
  • the arm 26 is formed essentially in the thickness of the wheel 16.
  • the arm 26 is substantially formed in the same plane as the body or plate C of the wheel 16, and therefore in the same plane as the toothing 28, the arm 26 which is essentially retracted can move at any time and in all directions to the interior of the opening or recess 30.
  • the drive finger 22 which is formed at the free end of the elastic arm 26, in the extension of the latter, rises substantially normal with respect to the wheel 16 and to the arm 26 to mesh successively with the moon phase wheel 24, then with the date wheel 8 and vice versa.
  • the arm 26 and the drive finger 22, which are formed between the teeth 28 of the wheel 16 and its axis of rotation Z2, are advantageously produced by stamping in the body C of the wheel 16, by operations common to the operations of toothing 28.
  • the wheel 16 being mechanically driven by the reference 14, it can cause the displacement of the two wheels respectively of the moon phases 24 and of the dates 8, at a frequency set over a predetermined period of time, namely every 24 hours, and this by means of the drive finger 22 which meshes with the external teeth of these wheels. Since the drive finger 22 is elastically linked to the wheel 16 which carries it via the arm 26, it is understood that it is possible to act externally on the two display mechanisms 1 and 2, in particular by the intermediary of the correction means 4 without there being any repercussion, that is to say a reversible action, on the other organs of the timepiece, for example on the reference 14.
  • the elastic arm 26 indifferently absorbs the displacement of one or the other of the display mechanism 1 or 2 when the driving member 6, and in particular the drive finger 22 of the wheel 16, is engaged with the one of these two mechanisms 1 or 2 and that the mechanism with which this driving member 6 meshes, simultaneously undergoes the action of the correction means 4.
  • the drive finger 22 thanks to its freedom of radial movement, in addition to its freedom of tangential movement, can go to the bottom of the toothing of one of the wheels 8 or 24 without blocking in the meshing between the driving member 6 and these wheels 8 and 24.
  • the axial clearance of the wheel 16 is limited by the two wheels 8 and 24 under which this wheel moves.
  • the two wheels of the dates 8 and of the moon phases 24 are respectively associated with elastic extensions 32 and 34.
  • One of the sides, known as the inner side, bent free ends of these extensions snap onto the external teeth of the two wheels 8 and 24.
  • the jumper spring 36 therefore comprises a base 38 in the central region which is arranged a fixing screw 40 engaged in the plate 20.
  • Two positioning pads 42 and 44 are engaged in corresponding orifices provided in the end regions or wings of the base 38 to allow, before final fixing by the screw 40 , the relative positioning of the elastic extensions 32 and 34 relative to the wheels 8 and 24 with which they cooperate.
  • the two extensions 32 and 34 which rise normally from the base 38 extend relative to each other by forming a V in which the driving member 6 is advantageously housed.
  • the moon phase wheel 24 is pivotally mounted on a drop 50 formed in the plate 20, and in which is engaged a fixing screw 52 whose head axially maintains the wheel 24 which is mounted free in rotation relative to the plate 20 , around an axis of rotation Z3.
  • the moon phase wheel 24 can be actuated by the correction means 4, preferably using a pinion intermediate 60 in constant engagement with the moon phase wheel 24.
  • This intermediate pinion 60 is mounted to rotate freely on a pivot 62 driven into the plate 20 and it makes it possible to rotate the two wheels 8 and 24 in the same direction.
  • the means 4 for rapid correction of the two display mechanisms 1 and 2 comprise a pinion 64 of the sliding pinion type.
  • This sliding pinion 64 is a stepped pinion, a first stage, said upper, is constituted by a wheel 66 adapted to come to mesh, either with the date wheel 8 ( Figure 4), or indirectly, that is to say via the pinion 60, with the moon phase wheel 24 ( Figure 3).
  • no intermediate pinion 60 is provided, so that the wheel 66 can mesh directly with the wheel of the moon phases 24.
  • the second, called lower stage, of the sliding pinion 64 is constituted by a pinion 68 which meshes permanently with a correcting wheel 70 (FIG. 4) which is kinematically connected, preferably by mechanical means not shown, to control means. unique components formed by a crown 72 - winding stem 74 assembly shown in FIG. 1.
  • the connection between the corrective wheel 70 and the external control means 72, 74 being conventional, it has not been shown here in detail.
  • the sliding pinion 64 also comprises a stepped pivot 76, the upper part of which receives, driven onto it, the wheel 66, while the pinion 68 which is driven mechanically by the drive, is driven onto the lower part of this pivot 76 corrective wheel 70.
  • the wheel 66 and the pinion 68 are separated axially by means of a collar 78 formed directly on the pivot 76.
  • the lower part of the pivot 76 is mounted free in rotation and in translation inside a guide groove 80 to allow the sliding pinion 64 to move freely in translation relative to the plate 20.
  • the groove 80 is straight or substantially curved.
  • the sliding pinion 64 constitutes meshing means common to the two display mechanisms 1 and 2, mounted in rotation and capable of acting alternately, under the action of the control means 72, 74, on the one or the other of these two mechanisms 1 and 2.
  • axis of rotation Z4 of the pinion 64 is displaceable in translation relative to the plate 20.
  • the timepiece according to the invention further comprises a support flange 90 ( Figures 1 and 5) whose base 92 is fixedly held on the plate 20 by means of a fixing screw 94 engaged in the plate .
  • the base 92 is arranged in the vicinity of the periphery of the timepiece according to the invention. From this base 92 extends a covering part 96 which covers, at least in part, the intermediate pinion 60, the sliding pinion 64, as well as the date wheel 8.
  • This covering part 96 comes to rest at its end free on a pin 98 driven into the plate 20 and making it possible to define a fixed height between this covering part 96 and the upper surface of the plate 20.
  • a tongue 100 which is cut out by stamping and which is slightly curved in the direction of the plate 20 to come to bear on the upper surface of the sliding pinion 64, and in particular on its wheel 66. This pressing facilitates the translational movement of the sliding pinion 64 by creating a pressure causing a resistant moment when the corrective wheel 70 is actuated.
  • the axis of rotation Z1 of the date wheel 8 coincides with the central axis of the timepiece according to the invention.
  • the two axes of rotation respectively Z1 of the day wheel 8 and Z3 of the moon phase wheel 24 can be joined by a normal geometric axis X1, constituting one of the spokes of the timepiece according to the invention.
  • the rapid correction means 4 and the driving member 6 are arranged on either side of the geometric axis X1 joining the two axes of rotation Z1 and Z3.
  • the engagement means 64 are arranged in a manner substantially opposite to the driving member 6 and substantially in line with the latter relative to the geometric axis X1.
  • the extensions 32 and 34 are arranged on either side of the geometric axis Y1, the single and common jumper spring 36 being substantially centered relative to this geometric axis Y1.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Astronomy & Astrophysics (AREA)
  • Electromechanical Clocks (AREA)
  • Pens And Brushes (AREA)
EP91116519A 1990-10-02 1991-09-27 Pièce d'horlogerie du type mécanique et/ou électromécanique Expired - Lifetime EP0479147B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH3171/90A CH681128B5 (xx) 1990-10-02 1990-10-02
CH3171/90 1990-10-02

Publications (2)

Publication Number Publication Date
EP0479147A1 EP0479147A1 (fr) 1992-04-08
EP0479147B1 true EP0479147B1 (fr) 1995-11-22

Family

ID=4250161

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91116519A Expired - Lifetime EP0479147B1 (fr) 1990-10-02 1991-09-27 Pièce d'horlogerie du type mécanique et/ou électromécanique

Country Status (5)

Country Link
US (1) US5367504A (xx)
EP (1) EP0479147B1 (xx)
JP (1) JPH04340493A (xx)
CH (1) CH681128B5 (xx)
DE (1) DE69114809D1 (xx)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ATE500537T1 (de) * 2007-07-13 2011-03-15 Omega Sa Augenblicklicher anzeigemechanismus für uhr
EP2453322B1 (fr) 2010-11-16 2013-07-17 Omega SA Correcteur rapide d'indicateur d'une grandeur temporelle pour pièce d'horlogerie
CN102608901B (zh) * 2011-01-19 2013-10-23 天津海鸥表业集团有限公司 一种机械手表的万年历机构
EP3396472B1 (fr) * 2017-04-28 2020-05-27 ETA SA Manufacture Horlogère Suisse Mécanisme de quantième et d'affichage de phase de lune pour montre

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1988782A (en) * 1931-11-13 1935-01-22 Canepa Christopher Electric calendar clock
JPS5517353B1 (xx) * 1970-03-11 1980-05-10
FR2283477A1 (fr) * 1974-08-27 1976-03-26 Ebauches Sa Mouvement de montre-calendrier a dispositif correcteur du quantieme et du jour
CH622923B (fr) * 1977-02-22 Ebauches Sa Montre electromecanique.
CH617815GA3 (xx) * 1978-09-04 1980-06-30
DE3505733C1 (de) * 1985-02-20 1986-10-23 IWC International Watch Co AG, Schaffhausen Uhr
CH663313GA3 (xx) * 1986-01-14 1987-12-15
CH668884GA3 (xx) * 1987-09-24 1989-02-15
CH673371B5 (xx) * 1988-10-10 1990-09-14 Ebauchesfabrik Eta Ag

Also Published As

Publication number Publication date
DE69114809D1 (de) 1996-01-04
CH681128B5 (xx) 1993-07-30
CH681128GA3 (xx) 1993-01-29
EP0479147A1 (fr) 1992-04-08
JPH04340493A (ja) 1992-11-26
US5367504A (en) 1994-11-22

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