EP0397028B1 - Pièce d'horlogerie astronomique dont un organe visible simule le déplacement d'un astre - Google Patents

Pièce d'horlogerie astronomique dont un organe visible simule le déplacement d'un astre Download PDF

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Publication number
EP0397028B1
EP0397028B1 EP90108362A EP90108362A EP0397028B1 EP 0397028 B1 EP0397028 B1 EP 0397028B1 EP 90108362 A EP90108362 A EP 90108362A EP 90108362 A EP90108362 A EP 90108362A EP 0397028 B1 EP0397028 B1 EP 0397028B1
Authority
EP
European Patent Office
Prior art keywords
ring
driving wheel
satellite
wheel set
timepiece according
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
EP90108362A
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German (de)
English (en)
French (fr)
Other versions
EP0397028A1 (fr
Inventor
Jean-Philippe Rebeaud
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
Original Assignee
Eta SA Fabriques dEbauches
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Publication date
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Publication of EP0397028A1 publication Critical patent/EP0397028A1/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
    • G04B19/26—Clocks or watches with indicators for tides, for the phases of the moon, or the like

Definitions

  • the invention relates to an astronomical timepiece comprising a time reference with mechanical output having at least one driving mobile and a display device having at least one visible member simulating the movement of a star.
  • Timepieces of this kind are already known in particular from documents CH-627,042, CH-666,980 and EP-0195,742.
  • the last two documents describe timepieces which include several coaxial display members each carrying a or several marks which simulate stars describing orbits around the center.
  • the center represents the sun and the marks simulate planets while in the third document the center represents the earth and the mobile organs simulate the relative displacements of the sun, the celestial vault or the moon compared to the Earth.
  • the drive mechanisms of these different display members include gear trains, the different mobiles of which are permanently engaged with each other and are driven continuously from the hour wheel.
  • the reports are such that the duration of the sidereal periods represented: the year, the lunations, etc. are exact with very high precision.
  • timepieces designed in this way cannot be constructed in order to simulate the epicyclic movement of the moon around the earth with the sun as its center.
  • the complication of the gears results in a volume of the part incompatible with the dimensions of a portable timepiece.
  • document US 246,061 describes a timepiece comprising a display device having a visible member simulating the movement of a star.
  • This device comprises a satellite carrier having a crown actuated step by step each day by a mobile trainer, the satellite associated with the moon being driven by a drive wheel in direct engagement with a fixed sun gear.
  • nothing is planned to activate the planetary in order, if necessary, to correct the position of the moon associated with the satellite.
  • the main object of the invention is therefore to remedy the drawbacks of the prior art raised by producing an astronomical timepiece capable of being constructed in the dimensions of a wristwatch with, on the one hand, a mechanism for simple drive of a display device simulating the epicyclic movement of the moon around the earth with the sun at its center and on the other hand, a correction device allowing an independent correction of the position of the satellite carrier and the satellite itself even.
  • timepiece generally designated by the reference 1 and comprising a time reference with mechanical output of conventional type, the only ones elements different from the known elements are described in detail below.
  • the dates are marked along a graduation formed on a ring 7 at the periphery of the dial 6.
  • an earth ring 8 is rotatably mounted on the dial 6.
  • This ring 8 has an annular surface 8a comprising, for example, a decoration representing the celestial vault with certain constellations of stars.
  • the ring 8 has a circular recess in which a lunar disc 9 is mounted to rotate.
  • the lunar disc 9 coplanar with the annular surface 8a carries a decoration matching the latter and represents in its central part the terrestrial globe 10 and in the vicinity of its periphery the moon 11. It is understood that the sun is represented here by the center of the dial.
  • a driving mobile 12 actuated step by step every day is mounted on the plate 13.
  • This mobile 12 is a wheel 31 teeth directly engaged with a conventional date wheel not shown in the drawings.
  • the driving mobile 12 drives by means of a transmission train comprising two mobile 14 and 15 a crown 16 provided with an internal toothing 17.
  • This crown 16 is fixed to the earth ring 8 by means of an annular rib 18 formed on the face opposite the annular surface 8a of the ring 8 and along its outer periphery.
  • the internal toothing 17 has one hundred and forty teeth and the transmission train 14, 15 has a transmission ratio such that the crown 16 (the earth ring) performs, under normal driving conditions, one revolution for 372 steps of the mobile coach 12. In other words, the earth ring 8 makes one revolution for twelve complete turns of this mobile 12.
  • the mobile 12 directly engaged with the date wheel performing one revolution per month it follows that the earth ring 8 performs one turn per year.
  • the driving mobile 12 advantageously constitutes the driving mobile for a month indicator.
  • the driving mobile 12 further comprises a driving finger 19, for example of a conventional month disc (not shown). This finger 19 is located in a plane different from the plane of the wheel as is clearly visible in FIG. 2.
  • the lunar disc 9 rotatably mounted in the recess of the ring 8 carries on its reverse a pinion 20 which is directly engaged with the external toothing 21 of a ring 22.
  • the shape and modulus of the toothing 21 are such that in normal operation, the pinion 20 rolls on this toothing when the ring 8 is rotated.
  • the gear ratio of the pinion 20 to the toothing 21 of the ring 22 is such that the pinion 20 rotates on itself for approximately 29.5 steps of the ring 8.
  • the ring 22 includes a toothing edge 23 intended to cooperate with a correction device which will be described in more detail below.
  • the set of elements 8, 9, 20, 17, 22 thus forms a planetary gear train, the elements 8, 17 constituting the planet carrier, the elements 9, 20 the satellite, and finally the element 22 the mobile planetary.
  • the ring 22 is supported and is guided by an inner annular flange on a shoulder 24 formed at the periphery of the dial 6 and is retained by the ring 8.
  • the latter has its guided edge between two flat ribs 25, 26 and a flange 27 of a retaining ring 28 fixed to the dial 6.
  • the ribs 25 and 26 are formed respectively on the edge of the dial and on the face opposite to the toothing of fields 23 of the ring 22.
  • the retaining ring 28 is fixed by suitable means such as screws or the like (not shown) to the dial 6 and has an annular surface 29 coplanar with that 8a of the earth ring 8.
  • This surface can advantageously be used to indicate the dates or for example be divided into twelve sectors each representing a month of the year and cooperating with an index carried by the earth ring 8 to indicate the current month.
  • the timepiece according to the invention also comprises a correction device suitable for correcting the relative position of the various indicating members and in particular that of the earth ring 8 and that of the lunar disc 9.
  • This device visible in FIGS. 3, 4, 5 and 6 comprises an operating member constituted by a rod 30.
  • This rod 30 is axially movable between several positions designated by N, CI and CH in FIG. 3.
  • a second position of the rod designated by CH corresponds to the fully pulled position in the direction of arrow F2. This position allows by simple rotation of the rod in a conventional manner the correction of the hours, minutes and calendar.
  • a third position of the rod designated by CI is intermediate between the first (N) and the second (CH) position.
  • the rotation in a first direction (A) of the rod then allows the correction of the lunar disc 9 and in a second direction (B) the correction of the earth ring 8.
  • the correction device further comprises a sliding pinion 31 having axial displacements opposite to those of the rod 30.
  • this sliding pinion is engaged with a reference 32 which cooperates with the pinion 33 d 'a portable player 34 movable between two extreme positions in an oblong hole 35 formed in the plate 13.
  • this portable player comprises a three-wing disc 36 which in the first extreme position (shown in Figures 3 and 4) actuates a rocker spring 38 comprising a tongue 39 engaged with the edge teeth 23 of the ring 22.
  • the three-winged disc 36 meshes in a reference 37 directly engaged with the mobile coach 12.
  • a very simple and space-saving mechanism is thus obtained which simulates the epicyclic movement of the moon around the earth, the latter revolving around the sun.
  • the training is done step by step once a day.
  • the timepiece must be updated at the same time as the date indicator, five times a year, at the end of the 31-day months (stem in the CH position). It is then necessary to correct the position of the moon, which is done as simply as that of the date by means of the same rod 30 (position CI) by actuating the ring 22 as described above.
  • the described mechanism indicates the month by the position of the earth in its orbit and it allows to appreciate the lunar phase.
  • the drive ratio of the satellite 9, 20 could be chosen so that this satellite indicates the weeks.
  • the teeth 17 could be directly driven by a driving mobile and that the pinion 20 could be indirectly engaged with the teeth of the planetary mobile 22.

Landscapes

  • Physics & Mathematics (AREA)
  • Astronomy & Astrophysics (AREA)
  • General Physics & Mathematics (AREA)
  • Electromechanical Clocks (AREA)
  • Instructional Devices (AREA)
  • Structure Of Transmissions (AREA)
  • Gear Transmission (AREA)
EP90108362A 1989-05-08 1990-05-03 Pièce d'horlogerie astronomique dont un organe visible simule le déplacement d'un astre Expired - Lifetime EP0397028B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH1720/89 1989-05-08
CH1720/89A CH677305B5 (enrdf_load_stackoverflow) 1989-05-08 1989-05-08

Publications (2)

Publication Number Publication Date
EP0397028A1 EP0397028A1 (fr) 1990-11-14
EP0397028B1 true EP0397028B1 (fr) 1992-11-04

Family

ID=4217025

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90108362A Expired - Lifetime EP0397028B1 (fr) 1989-05-08 1990-05-03 Pièce d'horlogerie astronomique dont un organe visible simule le déplacement d'un astre

Country Status (5)

Country Link
US (1) US5345429A (enrdf_load_stackoverflow)
EP (1) EP0397028B1 (enrdf_load_stackoverflow)
JP (1) JPH0354496A (enrdf_load_stackoverflow)
CH (1) CH677305B5 (enrdf_load_stackoverflow)
DE (1) DE69000423T2 (enrdf_load_stackoverflow)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB9014213D0 (en) * 1990-06-26 1990-08-15 Talbot Edward B Astronomical clock
CH689710B5 (fr) * 1994-01-26 2000-03-15 Erard Raoul Henri Montre comprenant un organe indicateur complémentaire à l'affichage de l'heure.
EP0813124A4 (en) * 1995-12-20 1999-03-24 Kuronuma Izuru DISPLAY
PT1607807E (pt) * 2004-06-15 2008-03-17 Eta Sa Mft Horlogere Suisse Peça de relojoaria com efeitos estéticos especiais
JP2010121943A (ja) * 2008-11-17 2010-06-03 Seiko Epson Corp 時計
CH705128B1 (fr) * 2011-06-16 2015-10-15 Télôs Watch SA Dispositif d'affichage du quantième et de la phase de lune.
RU2557345C1 (ru) * 2014-02-20 2015-07-20 Общество с ограниченной ответственностью "Константин Чайкин" Часы с механическим устройством отображения движения луны вокруг земли относительно солнца
EP3040789A1 (fr) * 2014-12-31 2016-07-06 Blancpain SA. Mecanisme indicateur de phases de lune
EP3379343B1 (fr) * 2017-03-20 2020-02-19 Blancpain SA Dispositif d'affichage de phases lunaires
CN110824891B (zh) * 2019-11-15 2021-03-16 上海航天控制技术研究所 一种适用于双星编队的半物理仿真校时系统及校时方法
EP4567528A1 (fr) 2023-12-08 2025-06-11 Blancpain SA Mouvement d'horlogerie comportant un mécanisme d'affichage des périodes d'un cycle annuel animé par sauts par un mobile à 31 positions

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US246061A (en) * 1881-08-23 Astronomical clock
DE1925995A1 (de) * 1969-05-21 1970-11-26 Bayer Ag 2-Alkyloxymethyl-3-chlor-1,2,4-thiaimidazol-5-one
CH561175A4 (enrdf_load_stackoverflow) * 1975-05-01 1977-04-29
FR2365173A1 (fr) * 1976-09-15 1978-04-14 Dhelens Jean Paul Calendrier
CH657740GA3 (en) * 1984-08-13 1986-09-30 Timepiece with calendar

Also Published As

Publication number Publication date
US5345429A (en) 1994-09-06
DE69000423D1 (de) 1992-12-10
EP0397028A1 (fr) 1990-11-14
JPH0354496A (ja) 1991-03-08
CH677305B5 (enrdf_load_stackoverflow) 1991-11-15
CH677305GA3 (enrdf_load_stackoverflow) 1991-05-15
DE69000423T2 (de) 1993-05-19

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