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EP0548659B1 - Pièce d'horlogerie du type mécanique ou électromécanique comportant une roue d'entraînement pilotant au moins un système d'affichage, tel qu'un affichage des quantièmes - Google Patents

Pièce d'horlogerie du type mécanique ou électromécanique comportant une roue d'entraînement pilotant au moins un système d'affichage, tel qu'un affichage des quantièmes Download PDF

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Publication number
EP0548659B1
EP0548659B1 EP92120899A EP92120899A EP0548659B1 EP 0548659 B1 EP0548659 B1 EP 0548659B1 EP 92120899 A EP92120899 A EP 92120899A EP 92120899 A EP92120899 A EP 92120899A EP 0548659 B1 EP0548659 B1 EP 0548659B1
Authority
EP
European Patent Office
Prior art keywords
hub
arm
elastic arm
drive wheel
wheel
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
EP92120899A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0548659A1 (fr
Inventor
Ferenczy Laszlo
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 EP0548659A1 publication Critical patent/EP0548659A1/fr
Application granted granted Critical
Publication of EP0548659B1 publication Critical patent/EP0548659B1/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
    • G04B11/00—Click devices; Stop clicks; Clutches
    • G04B11/001—Clutch mechanism between two rotating members with transfer of movement in both directions, possibly with limitation on the transfer of power
    • 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
    • G04B19/253—Driving or releasing mechanisms
    • G04B19/25333—Driving or releasing mechanisms wherein the date indicators are driven or released mechanically by a clockwork movement
    • G04B19/25353—Driving or releasing mechanisms wherein the date indicators are driven or released mechanically by a clockwork movement driven or released stepwise by the clockwork movement

Definitions

  • the invention relates to a timepiece of the mechanical or electromechanical type, comprising an internally toothed crown associated with a display system, such as a date display.
  • the present invention further relates to a timepiece comprising a first display system of the type mentioned above, associated with a second display system, such as a day display, this second display system comprising a star which carries and drives a disc or average day indicator, centered on the part.
  • a timepiece provided with two date and day display systems respectively is described in French patent application No. 2 311 342.
  • This piece comprises a centrally disposed hour wheel, meshing with an intermediate mobile itself in engagement with a training mobile or coach which controls, on the one hand, a star carrying the day indicator disc, and on the other hand, an internally toothed crown forming a ring of the dates
  • the date ring and the day star are respectively indexed, that is to say brought and maintained in a predetermined angular position stably by indexing means and in particular by jumper springs.
  • the drive wheel of the corresponding mobile has a board which is internally hollowed out around its axis of rotation.
  • the recess thus formed makes it possible to release a central hub which remains linked to said drive wheel by means of a single arm elastic of essentially rectilinear shape in the rest position, formed along a radius of this wheel.
  • a stop which is capable of coming to bear radially on the aforementioned hub in particular to ensure the transmission of a normal drive movement to the date ring and the day star, movement d 'training which is received, from a reference to the central hour wheel, via the intermediate mobile.
  • the drive wheel comprises, on the one hand, a prominent tooth which is capable of coming to mesh with the date ring, and on the other hand, a protruding finger which is shaped to come to pilot the star. days at the same time as the said prominent tooth advances the ring by the date by one step.
  • the date ring and the day star simultaneously advance one step, thanks to the combined action of the drive wheel and the jumper springs, and this in a way classic.
  • the date ring can be adjusted conventionally, manually by the user, by means of an action on an outer crown after the latter has been brought into a predetermined pulled position.
  • the drive wheel is pushed by one of the teeth of the date ring via the ramp provided on the prominent tooth, this pushing causing a translational movement in a substantially radial direction, that is to say -to say towards the reference on the central hour wheel, displacement which is absorbed by the elastic link arm arranged between the central hub and the toothing of the drive wheel.
  • the stop therefore leaves its radial contact with the hub and the drive wheel can "fade” elastically without causing damage.
  • the user may also wish, at any time, to modify the time displayed by the timepiece, and no longer only the date.
  • the displayed time is adjusted clockwise, a normal advance of the date ring and the day star occurs (as at midnight), as in the classical operation of the coin d watchmaking, as explained above.
  • the drive wheel moves, thanks to the elastic arm, radially in the direction of the central axis of the part, which tends to cause the protruding finger to penetrate further into the teeth of the day star.
  • the present invention first aims to provide a timepiece comprising an internally toothed peripheral crown or ring, possibly associated with a day star centered on the part, and which can be overcome by an intermediate mobile between an elastic displacement drive wheel and its drive wheel formed in particular by a gear.
  • the present invention also aims to provide a timepiece such as that mentioned above which cannot be damaged regardless of the type of external adjustment carried out by the user.
  • FIG. 1 to describe a timepiece according to a first embodiment of the invention, an embodiment which includes a display of the date with a single system, and in particular a system of display of dates.
  • the timepiece according to the invention comprises a horometric movement, identified by the general reference 1, which is of the mechanical or electromechanical type.
  • This horometric movement is not shown in detail because its components, other than those which constitute the invention, are conventional and their realization is within the reach of the skilled person.
  • the horometric movement 1 comprises a driving pinion or gear 2 which is centered on the movement 1 around an axis called the central axis referenced X1, and which is mounted on a barrel 4 supported by the plate (not shown) of the horometric movement 1.
  • the movement 1 also includes an internally toothed crown 6 which is associated with a first display system, such as a date display.
  • This crown 6 is guided in rotation relative to the horometric movement 1 by conventional means, not shown. It is also held axially by a PM retaining plate, of the same conventional type, shown here partially for a better understanding of the invention.
  • This system may include inscriptions made directly on the crown 6 which, in this case, constitutes a date ring. In an alternative embodiment, it may include an additional disc fixed directly to the crown 6, this disc being not shown here.
  • the crown 6 has internally a number of teeth (in this case 31) which cooperate with a jumper spring 8 secured to the PM retaining plate and forming an angular indexing means.
  • this internally toothed crown 6 is indexed and can occupy different stable and predetermined angular positions which allow the date inscription to appear opposite a window of a dial (not shown).
  • the timepiece according to the invention also comprises a driving mobile 10 carrying a driving wheel or driver 12 which meshes directly with the driving pinion or gear 2 and which is therefore driven by the latter.
  • This drive wheel 12 has a prominent tooth 14 which, every 24 hours, transmits to the crown 6 a driving torque, in particular received from the driving pinion or gear 2, to advance the recording of the dates by one step.
  • the driving mobile 10 further comprises a hub 16 which is mounted to rotate freely around a geometric axis of rotation X2 which is parallel to the central axis X1 and substantially offset towards the outside relative to the latter.
  • the hub 16 is engaged on a stud 20 secured to a plate (not shown) of the horometric movement 1.
  • the hub 16 is housed inside a board 18 of the drive wheel 12, this board 18 being internally hollowed out to form in its center a substantially annular recess, referenced E. It will be noted that the drive wheel 12 is cut so that it has an externally toothed crown shape.
  • the hub 16 which is mounted to rotate freely relative to the time movement 1, elastically supports the drive wheel 12 by means of an elastic arm 22, called the first elastic arm.
  • This elastic arm 22 is anchored, on the one hand, on the hub 16 at the first anchoring point 24, and on the other hand part, on the hollowed out board or crown 18 at a second anchor point 26.
  • the first anchoring point 24 is defined by another protuberance bearing the reference 25, which extends radially outward from the outer periphery of the hub 16.
  • These two protrusions which respectively form the first point d anchor 24 and the second 26, carry the essentially elastic part of the arm 22 on a geometric circle C1 which is in its rest position here shown perfectly concentric with the drive wheel 12, as well as the hub 16 and its axis of rotation X2.
  • the elastic arm 22 has an essentially circular shape and that it extends over a determined arc length represented by the angel A.
  • the value of this angle varies between 225 ° and 240 ° and it has preferably a value of 230 °.
  • This elastic arm 22 which consequently supports the drive wheel 12, and more particularly its plate or crown 18 on the hub 16, has a shape essentially in "C" winding around the hub 16.
  • this first elastic arm 22 is open in a direction (or direction) S1 oriented in a manner substantially opposite to the prominent tooth 14.
  • the timepiece according to the invention comprises a mechanism for setting the time and for rapid correction of the date, referenced M.
  • This mechanism M which is conventional, comprises a crown for setting the time CO which can control a sliding pinion 28, via a correction pinion 29.
  • the drive pinion or gear 2 is rotated by the time movement 1 in a direction of rotation SH corresponding to the clockwise direction, which brings teeth for example 2a and 12a respectively of the pinion 2 and of the drive wheel 12 in contact.
  • the drive wheel 12 is therefore in turn driven in rotation by the drive pinion or return 2 in an opposite direction of rotation SA (anti-clockwise) until its prominent tooth 14 comes into contact with one teeth, for example 6a, belonging to the indexed and internally toothed crown 6.
  • the elastic arm 22 and the jumper spring 8 are calculated so that the crown 6 is released from the action of the jumper spring when the wheel drive 12 rotates the internally toothed crown 6 counterclockwise, without the elastic arm 22 bending too much.
  • the elastic arm 22 is oriented from its first anchor point 24 on the hub 16, towards its second anchor point 26 on the board 18 of the drive wheel 12, in a direction S2 which is the same as the normal direction of rotation of this wheel, corresponding to the counterclockwise direction SA.
  • the advance of the internally toothed crown 6 is conventional, and will not be described here in more detail.
  • the timepiece according to the invention is shown during the rapid adjustment of the indexed and internally toothed crown 6.
  • This adjustment which is also known as date correction, is carried out in particular by the 'through the manual control crown CO.
  • the crown CO being brought into a predetermined pulled position P1 by the user, it is then rotated in a direction of rotation S3, which controls via the pinion 29 the movement in translation of the sliding pinion 28, towards the internally toothed crown 6.
  • the sliding pinion 28 is therefore brought into the position shown in FIG. 2, position in which it causes (still under the action of the control crown CO) the rotation of the internally toothed crown 6 in the counterclockwise direction of rotation SA.
  • the ramp 15 of the protruding tooth 14 slides on the tooth 6b of the crown 6 and causes a displacement of the drive wheel 12 around the drive pinion or gear 2.
  • the elastic arm 22 by deforming allows the aforementioned movement of the drive wheel 12.
  • the protruding tooth 14 retracts relative to the tooth 6b in order to return to a rest situation corresponding to that of FIG. 1, except that the tooth 6b is then positioned in front the prominent tooth 14 and that the crown 6 has advanced one step. It therefore appears on the not shown dial of the timepiece according to the invention, an indication of the dates corresponding to the following day.
  • FIG. 3 represents another critical operating situation, which corresponds to the manual adjustment in the anti-clockwise direction SA of the hour and minute indicators, not shown.
  • the crown CO is pulled into another position, referenced P2, and it is rotated by the user in a direction of rotation S4, opposite to the direction of rotation S3.
  • this operation causes the motor pinion or gear 2 to rotate over a fraction of an angle in a counterclockwise direction SA since gear 2 is kinematically linked, in a conventional manner, to the hour wheel, this rotation causing a tooth of the driving pinion or return 2, referenced 2b, to actuate a tooth 12b of the wheel 12.
  • the timepiece further comprises a star 30 which is centered on the axis X1 and which is mounted to rotate freely on a barrel, not shown.
  • the star 30 is also indexed since it cooperates with a second jumper spring 32 which is fixedly mounted on the plate PM carrying the jumper spring 8 previously described.
  • the star 30 is associated with a second display system, such as a day display, the latter being able to be constituted by a disc on which the different days of the week are written. The arrangement of this disc on the star 30 being conventional, it is therefore not shown here.
  • the driving mobile 10 further comprises a driving finger 34 which is mounted integral in rotation with this mobile 10, and therefore with the driving wheel 12, by means of a second elastic arm 36.
  • the finger drive 34 thus rises out of the plane in which the elastic arm 36 is formed to come and control the rotation movement of the star 30.
  • this second elastic arm 36 is anchored directly on the hub 16, and in particular on its outer periphery to allow the finger 34 to move elastically and independently relative to the board 18 of the wheel d 'drive 12.
  • the second elastic arm 36 has, like the first 22, a C shape winding around the hub 16. More particularly, the second elastic arm 36 extends from a protrusion 37 projecting radially from the outer periphery of the hub 16 and carrying the elastic arm 36 on a geometric circle C2 which is, in a rest position, centered on the axis of rotation X2 of the hub 16 and substantially coaxial with the circle C1 carrying the first arm 22.
  • This second elastic arm 36 is therefore anchored on the hub 16 at a third anchor point referenced 38, this anchor point 38 being inscribed in the geometric circle C1 of the first elastic arm 22 so that the second elastic arm 36 s' extends partly into the C of the first arm 22.
  • the second elastic arm 36 extends from its anchoring point 38 on the hub 16, at an angle B of approximately 180 °. It will also be noted that a middle part or head of this second arm 36, referenced 40, is disposed substantially opposite the anchoring point 26 of the first arm 22.
  • This arrangement allows, during normal drive of the crown internally 6 and of the star 30 by the drive wheel 12, a stiffening of the second elastic arm 36 by a reduction in its boom length by a value substantially equal to two, since the anchor point 26 of the first elastic arm 22 presses on the inflection zone which forms the middle part 40 of the second elastic arm 36.
  • FIG. 5 represents the timepiece according to the second embodiment of the invention, during a rapid correction of the days.
  • control crown CO is pulled into its position P1 and it rotated in a direction of rotation S4, opposite to the direction of rotation S3 (FIG. 2) which allows the correction of the dates.
  • the sliding pinion 28 is moved, via the pinion 29, in the opposite direction to the crown 6, towards a day correction mobile 40 with which the sliding pinion 28 engages.
  • the day star 30 is therefore rotated clockwise SH to allow the display of the following day which incidentally causes the displacement of the finger 34 towards the hub 16, thanks to the second elastic arm 36. It will be noted that this movement has no influence on the position of the board 18 and therefore on that of the wheel 12 which in position remains stable.
  • FIG. 6 represents the timepiece according to this second embodiment during a time setting operation, in the counterclockwise direction.
  • control or setting crown CO being pulled into its position P2, it is rotated by the user in the direction of rotation S4, which causes, by a conventional mechanism not shown, the subsequent movement in rotation of the deflection 2 counterclockwise SA.
  • the drive wheel 12 is rotated clockwise SH which is opposite to the direction of rotation in normal operation.
  • the projecting finger 34 which has just pushed the star 30 is moved in the rear direction, and it in turn is retracted on one of the teeth, for example 2b, of the star 30.
  • this configuration allows direct driving of the drive wheel 12 by the drive pinion or gear 2, without the provision of an intermediate mobile.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electromechanical Clocks (AREA)
EP92120899A 1991-12-20 1992-12-08 Pièce d'horlogerie du type mécanique ou électromécanique comportant une roue d'entraînement pilotant au moins un système d'affichage, tel qu'un affichage des quantièmes Expired - Lifetime EP0548659B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH3807/91 1991-12-20
CH3807/91A CH682285B5 (fr) 1991-12-20 1991-12-20 Pièce d'horlogerie du type mécanique ou électromécanique comportant une roue d'entraînement pilotant au moins un dispositif d'affichage, tel qu'un affichage des quantièmes.

Publications (2)

Publication Number Publication Date
EP0548659A1 EP0548659A1 (fr) 1993-06-30
EP0548659B1 true EP0548659B1 (fr) 1995-09-27

Family

ID=4263882

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92120899A Expired - Lifetime EP0548659B1 (fr) 1991-12-20 1992-12-08 Pièce d'horlogerie du type mécanique ou électromécanique comportant une roue d'entraînement pilotant au moins un système d'affichage, tel qu'un affichage des quantièmes

Country Status (8)

Country Link
US (1) US5384755A (ru)
EP (1) EP0548659B1 (ru)
JP (1) JP3254022B2 (ru)
CN (1) CN1040477C (ru)
CH (1) CH682285B5 (ru)
DE (1) DE69205136T2 (ru)
HK (1) HK1007202A1 (ru)
RU (1) RU2081445C1 (ru)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2721106B1 (fr) * 1994-06-10 1996-09-13 Step Compteur de doses pour inhalateurs.
JP3732281B2 (ja) * 1996-08-30 2006-01-05 シチズン時計株式会社 多機能時計
JP2004534211A (ja) * 2001-03-21 2004-11-11 グラスヒュッター・ウーレンベトリープ・ゲーエムベーハー 時間表示器調整装置
JP2004170271A (ja) * 2002-11-20 2004-06-17 Seiko Instruments Inc カレンダ付き時計
ATE518168T1 (de) * 2003-01-07 2011-08-15 Eta Sa Mft Horlogere Suisse Kalendarmechanismus zur darstellung des wochentages und des monatstages in einer uhr
CH697018A5 (fr) * 2004-12-03 2008-03-14 Christophe Claret Sa Pièce d'horlogerie à animation.
CH699831B1 (fr) * 2006-11-06 2010-05-14 Eta Sa Mft Horlogere Suisse Dispositif de correction d'un mécanisme d'affichage pour pièce d'horlogerie.
EP2015146B1 (fr) * 2007-07-13 2011-03-02 Omega SA Mécanisme d'affichage instantané pour pièce d'horlogerie
JP5831705B2 (ja) * 2012-03-06 2015-12-09 カシオ計算機株式会社 指針時計
EP2919076A1 (fr) * 2014-03-10 2015-09-16 ETA SA Manufacture Horlogère Suisse Dispositif d'entraînement d'un indicateur analogique, notamment d'un anneau des quantièmes
DE102016111464B3 (de) * 2016-06-22 2017-08-31 Lange Uhren Gmbh Datumschaltung eines Kalenders einer Uhr
EP3667435B1 (fr) 2018-12-10 2022-06-01 Montres Breguet S.A. Systeme de reglage de la position d'un premier mobile dente par rapport a un support sur lequel le premier mobile dente est monte pivotant et piece d'horlogerie comprenant un tel systeme

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH446198A (de) * 1965-04-20 1968-03-15 Ebauchesfabrik Eta Ag Datumuhr mit ruckartigem Datumwechsel
JPS5149971Y2 (ru) * 1971-02-17 1976-12-02
JPS5241424Y2 (ru) * 1972-04-19 1977-09-19
US3875739A (en) * 1973-08-08 1975-04-08 Fontainemelon Horlogerie Control mechanism of at least one element of a timepiece which is running step by step
CH583933B5 (ru) * 1974-11-01 1977-01-14 Schild Sa A
CH599588B5 (ru) * 1975-05-16 1978-05-31 Ebauchesfabrik Eta Ag
CH610482B (fr) * 1976-06-16 Schild Sa A Mouvement de montre-calendrier.
SU794596A1 (ru) * 1978-06-23 1981-01-07 Научно-Исследовательскийинститут Часовой Промышленности Календарное устройствоМгНОВЕННОгО дЕйСТВи
CN2064074U (zh) * 1989-08-25 1990-10-17 天津手表厂 手表日历机构

Also Published As

Publication number Publication date
CH682285B5 (fr) 1994-02-28
RU2081445C1 (ru) 1997-06-10
CN1074295A (zh) 1993-07-14
CN1040477C (zh) 1998-10-28
DE69205136T2 (de) 1996-05-09
US5384755A (en) 1995-01-24
DE69205136D1 (de) 1995-11-02
JPH05273357A (ja) 1993-10-22
HK1007202A1 (en) 1999-04-01
CH682285GA3 (ru) 1993-08-31
EP0548659A1 (fr) 1993-06-30
JP3254022B2 (ja) 2002-02-04

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