CH706748B1 - Mechanism for displaying moon phases. - Google Patents
Mechanism for displaying moon phases. Download PDFInfo
- Publication number
- CH706748B1 CH706748B1 CH01087/12A CH10872012A CH706748B1 CH 706748 B1 CH706748 B1 CH 706748B1 CH 01087/12 A CH01087/12 A CH 01087/12A CH 10872012 A CH10872012 A CH 10872012A CH 706748 B1 CH706748 B1 CH 706748B1
- Authority
- CH
- Switzerland
- Prior art keywords
- sphere
- axis
- deuxième
- kinematic chain
- lune
- Prior art date
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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
- 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
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- Physics & Mathematics (AREA)
- Astronomy & Astrophysics (AREA)
- General Physics & Mathematics (AREA)
- Gear Transmission (AREA)
- Transmission Devices (AREA)
Abstract
Representative Drawing - A single figure which represents the drawing illustrating the invention. A moon phase display mechanism comprising: a sphere (10) representing the moon, having two distinct hemispheres and pivotally mounted with reference to a support (14) along a first axis, For rotating the sphere (10) about said first axis, substantially one revolution per lunation. To correct the inclination of the representation of the moon, said sphere (10) is pivotally mounted along a second axis perpendicular to the first axis and crossing the first axis substantially at the center of said sphere (10), said mechanism comprising a second kinematic chain For rotating the sphere (10) about the second axis. The present invention relates to the field of horology.
Description
TECHNICAL FIELD [0001] The present invention relates to the field of horology. More particularly, it relates to a moon phase mechanism comprising: a sphere representing the moon and pivotally mounted with reference to a support along a first axis; and an automatic drive kinematic chain for rotating the sphere around Of this first axis, substantially at the rate of one revolution per lunation.
Etat de la technique [0002] Les mécanismes permettant l’affichage des phases de lune sont bien connus dans l’horlogerie. Généralement, ces affichages mettent en œuvre des disques qui permettent, de manière simplifiée, de représenter les phases de la lune. On a également proposé, comme dans le document EP 0 566 529, d’afficher les phases de la lune au moyen d’une lune représentée par une sphère comportant deux moitiés de couleurs différentes. La sphère est montée pivotante autour d’un premier axe passant par le centre de la sphère et pivote également autour du centre du mouvement. Les mouvements combinés de la sphère permettent d’afficher les phases de lune.
It is known that, from the earth, the moon is seen differently according to the latitude to which an observer is located or according to the hours of the day. Most watch brands offer watches displaying the phases of the moon seen from the southern hemisphere or from the northern hemisphere, giving an average representation that corresponds substantially to what an observer can see when he is Situated on a latitude of 30 ° South or North. The representation offered by a timepiece provided with a display of the phases of the moon does not therefore correspond, in most cases, to the reality observed by the wearer of this watch.
SUMMARY OF THE INVENTION The object of the present invention is to solve this problem by making it possible to display the phases of the moon in a timepiece more realistically, taking into account in particular the time of day or the latitude at which the time Bearer of this timepiece is located.
DISCLOSURE OF THE INVENTION More precisely, the invention relates to a mechanism for displaying the phases of the moon, comprising: a sphere representing the moon, comprising two distinct hemispheres and mounted pivotably with reference to a support according to A first axis, a first automatic drive system for rotating the sphere about said first axis substantially at the rate of one revolution per lunation.
[0006] Selon l’invention, la sphère est montée pivotante selon un deuxième axe perpendiculaire au premier axe et croisant le premier axe sensiblement au centre de ladite sphère. Le mécanisme comprend une deuxième chaîne cinématique d’entraînement, destinée à faire tourner la sphère autour du deuxième axe pour corriger l’inclinaison de la représentation de la lune.
[0007] D’autres caractéristiques avantageuses de l’invention sont proposées dans les revendications.
Brève description des dessins [0008] D’autres détails de l’invention apparaîtront plus clairement à la lecture de la description qui suit, faite en référence aux figures annexées, dans lesquelles: les fig. 1 et 2 sont des représentations schématiques de l’invention, et les fig. 3 et 4 sont deux vues en perspective d’un mécanisme de phases de lune selon l’invention.
Mode(s) de réalisation de l’invention [0009] On peut voir sur les figures illustrant un mode de réalisation particulier d’un mécanisme de phases de lune selon l’invention, une sphère 10 représentant la lune. Cette sphère 10 comporte deux hémisphères distincts afin de figurer la face de la lune éclairée par le soleil et la face située dans l’ombre. Ces deux hémisphères peuvent être obtenus soit en réalisant la sphère 10 sous forme de deux moitiés de couleur distincte, comme dans l’exemple proposé, soit en recouvrant la sphère 10 d’un cache hémisphérique de couleur distincte.
[0010] As shown schematically in FIGS. 1 and 2, the aim of the present invention is to pivot the sphere 10 along a first axis AA so as to display the phases of the moon during a lunar cycle while allowing the sphere 10 to be pivoted according to A second axis BB perpendicular to the first axis AA and crossing the first axis substantially at the center of said sphere 10. By pivoting the sphere 10 along this second axis BB, the inclination of the representation of the moon can be corrected so that For example as a function of latitude or as a function of time of day or as a function of a second time zone. Thus, FIGS. 1 and 2 propose two positions in which the phase of the moon is the same, but with a different inclination of the moon.
[0011] Plus précisément, la sphère 10 est montée pivotante selon le premier axe A-A, au moyen de paliers 12 agencés dans un support 14 qui définit un logement 16 à l’intérieur duquel prend place la sphère 10.
For driving the sphere 10 about the first axis AA, the mechanism according to the invention comprises a first automatic drive kinematic chain, designed to rotate the sphere around this first axis AA, substantially at right angle Of one rotation per lunation (29.5 days or, more precisely, 29.530589 days). Typically, this first kinematic chain is arranged to drive the sphere 10 from an hour wheel or from a wheel twenty-four hours of a basic movement, the gear ratios being determined to Get the desired speed. Symbolic representation is shown in FIG. 4, a display element 18 driven by the basic movement to display information relating to the current time.
In a preferred embodiment and illustrated in the drawings, the first automatic drive kinematic chain comprises a circular toothed ring 20 surrounding the sphere 10. The circular toothed ring 20 comprises a first toothing 20a to be driven by the movement Of the base via a first mobile 22 disposed on a transmission shaft 24, and a second toothing 20b meshing with a pinion 26 which the sphere 10 comprises, this pinion 26 being mounted on a shoe 27 oriented along the first axis AA.
In order to drive the sphere 10 along the second axis BB, the mechanism comprises a second drive kinematic chain, which can be either a manual drive typically in the case of a latitude adaptation, or an automatic drive in The case of an adaptation according to the time of day or a second time zone.
The second kinematic chain comprises a circular toothing 28 concentric with the circular tooth ring 20, this circular toothing 28 being arranged on the support 14. Thus, the sphere 10 and the support 14 are integral in rotation about the second axis BB.
For driving the circular toothing 28, the example shown proposes a manual drive which will be described in detail hereinafter.
Thus, it can be understood that a rotation of the sphere 10 along the first axis AA makes it possible to indicate the different phases of the moon, while a rotation of the sphere 10 along the second axis BB makes it possible to modify the inclination Of the representation of the moon.
In order to correct the indication of the phase of the moon, the mechanism according to the invention comprises a third manual drive kinematic chain for rotating the sphere about the first axis.
The third manual drive kinematic chain is arranged to drive the circular toothed ring 20 by means of a first manual control member. Typically, the first control member is a control rod 30 capable of occupying several axial positions, one of which enables it, via one or more reversals 32, to actuate a wheel 34 mounted on the shaft The control rod 30 is, for example, provided with a sliding pinion 36 actuated by a pulling system. In the figures, the sliding pinion 36 is not engaged with the return 32.
[0020] Par sécurité et pour éviter toute contrainte excessive dans les différents mobiles du mécanisme, l’homme du métier pourra prévoir un découplage de la première chaîne cinématique et de la troisième chaîne cinématique, ceci afin d’éviter de perturber le fonctionnement du mouvement lors d’une correction. On pourra ainsi intercaler une friction entre le mouvement de base et l’arbre de transmission 24. Le découplage peut aussi permettre d’éviter tout blocage lors de l’entraînement de la sphère 10 par le mouvement si la tige de commande 30 est en position de correction et que le pignon coulant 36 est en prise avec le renvoi 32. On pourra ainsi prévoir de connecter la roue 34 à l’arbre de transmission 24 au moyen d’un système de limitation de couple ou d’encliquetage, tel qu’un doigt élastique.
Thus, the second kinematic chain and the third manual drive kinematic chain are synchronized so as to cause the sphere 10 to pivot only along the first axis AA, the support 14 remaining stationary during such a correction or, It will be understood hereinafter, only along the second axis BB.
[0022] Dans le mode de réalisation illustré, la correction de l’inclinaison de la lune est faite manuellement. De préférence, cette correction se fait sans incidence sur l’indication de la phase de lune, sans quoi il faudrait ultérieurement et au surplus, corriger l’indication de la phase de lune. On comprend donc qu’il ne s’agit pas simplement de faire tourner le support 14 autour du deuxième axe B-B, car le pignon 26 porté par la sphère 10 roulerait alors sur la bague dentée circulaire 20, produisant une rotation de la sphère 10 autour du premier axe A-A.
[0023] Ainsi, il faut actionner simultanément et à la même vitesse, la bague dentée circulaire 20 et le support 14, afin de n’avoir pas de déplacement relatif entre l’une et l’autre.
[0024] Une première possibilité, non représentée, pourrait être d’avoir un organe de commande dédié à la correction de l’inclinaison de la sphère 10 et indépendant de l’organe de commande dédié à la correction de l’indication de la phase de lune. Pour la correction de l’inclinaison de la sphère 10, une tige de commande ou un poussoir peuvent être agencés de manière à actionner un mobile à deux étages, dont l’un est en prise avec la bague dentée circulaire 20 et dont l’autre est en prise avec la denture circulaire 28 du support 14, pour les entraîner simultanément et à la même vitesse.
Claims (12)
1. A moon phase display mechanism comprising: a sphere (10) representing the moon, having two distinct hemispheres and pivotally mounted with reference to a support (14) along a first axis; a first automatic drive kinematic chain , The sphere (10) being pivotally mounted along a second axis perpendicular to the first axis and intersecting the first sphere Axis substantially at the center of said sphere (10), said mechanism comprising a second drive kinematic chain for rotating the sphere (10) about the second axis to correct the inclination of the representation of the moon.
2. Moon phase display mechanism according to claim 1, characterized in that it comprises a third manual drive kinematic chain for rotating the sphere (10) about the first axis to correct the indication of The moon phase.
3. The moon phase display mechanism as claimed in claim 1, wherein the sphere and the support are integral in rotation about the second axis.
4. Moon phase display mechanism according to claim 2, characterized in that the second kinematic chain and the third manual drive kinematic chain are synchronized so as to cause the sphere (10) to pivot only According to the first or second axis.
5. Moon phase display mechanism according to claim 4, characterized in that it comprises a clutch system (40) for synchronizing the second drive kinematic chain and the third manual drive kinematic chain.
6. Moon phase display mechanism according to claim 1, characterized in that the first automatic drive train comprises a circular ring (20) concentric with the second axis and surrounding said sphere (10), The latter comprising a pinion (26) mounted on a shank (27) oriented along the first axis and meshing with said circular ring (20).
7. Moon phase display mechanism according to claims 2 and 6, characterized in that the third manual drive kinematic chain is arranged to drive said circular ring (20) by means of a first manual control member .
8. Moon phase display mechanism according to claim 6, characterized in that the support (14) comprises a circular toothing (28) concentric with said circular ring (20).
9. Moon phase display mechanism according to claims 7 and 8, characterized in that the second drive kinematic chain is arranged to drive the circular toothing (28) by means of said first manual control member or Second manual control unit.
10. Moon phase display mechanism according to claim 5, characterized in that the clutch system (40) is capable of evolving between a disengaged position in which the manual control member drives only The third manual drive kinematic chain, and an engaged position in which the manual control member simultaneously drives the second drive train and the third manual drive kinematic chain.
11. The moon phase display mechanism as claimed in claim 10, wherein the control member is a control rod (30) capable of occupying at least two axial positions, characterized in that said control member is connected To the clutch system (40) so that the clutch system (40) is in the disengaged position when the control rod (30) is in a first axial position and the clutch system (40) is in Position when the control rod is in a second axial position.
12. Mechanism for displaying moon phases according to one of claims 2 to 11, characterized in that it comprises a decoupling of the first kinematic chain and of the third kinematic chain.
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH01087/12A CH706748B1 (en) | 2012-07-17 | 2012-07-17 | Mechanism for displaying moon phases. |
EP20130175337 EP2687918B1 (en) | 2012-07-17 | 2013-07-05 | Moon phase mechanism |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH01087/12A CH706748B1 (en) | 2012-07-17 | 2012-07-17 | Mechanism for displaying moon phases. |
Publications (2)
Publication Number | Publication Date |
---|---|
CH706748A1 CH706748A1 (en) | 2014-01-31 |
CH706748B1 true CH706748B1 (en) | 2017-03-31 |
Family
ID=47278626
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH01087/12A CH706748B1 (en) | 2012-07-17 | 2012-07-17 | Mechanism for displaying moon phases. |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP2687918B1 (en) |
CH (1) | CH706748B1 (en) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
RU2559618C1 (en) * | 2014-05-08 | 2015-08-10 | Общество с ограниченной ответственностью "Константин Чайкин" | Clock having device for simultaneous display of moon phases visible from earth and earth phases visible from moon, and method for said display |
RU2559624C1 (en) * | 2014-05-30 | 2015-08-10 | Общество с ограниченной ответственностью "Константин Чайкин" | Clock having device for simultaneously displaying moon and earth phases and method for said display |
EP3483664B1 (en) * | 2017-11-10 | 2020-06-03 | Montres Breguet S.A. | Clockwork mechanism for displaying the lunar day and the phase of the moon, with correction system with dual drive train |
EP4369113A3 (en) * | 2019-12-23 | 2024-07-31 | Blancpain SA | Mechanism for displaying the phases of the moon |
RU2746157C1 (en) * | 2020-08-06 | 2021-04-08 | Константин Юрьевич Чайкин | Lunar clock |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3918647C2 (en) * | 1989-06-08 | 1997-04-17 | Bunz Montres S A | Clock with a representation of the phases of the moon |
FR2657439B1 (en) * | 1990-01-25 | 1995-11-10 | Richard Jean Pierre | DEVICE FOR REPRESENTING THE MOON, ESPECIALLY ON THE DIAL OF A WATCH. |
CH684981B5 (en) * | 1992-04-02 | 1995-08-31 | Bunz Montres S A | Means for displaying the phases of the moon and watch with such a device. |
CH697674B1 (en) * | 2004-03-11 | 2009-01-15 | Bethune Sa De | Moon phase displaying device for timepiece mechanism of mechanical watch, has rotational axle flattened below small dial in direction that driving height of small dial permits precise adjustment of vertical shake of rotational axle |
-
2012
- 2012-07-17 CH CH01087/12A patent/CH706748B1/en not_active IP Right Cessation
-
2013
- 2013-07-05 EP EP20130175337 patent/EP2687918B1/en active Active
Also Published As
Publication number | Publication date |
---|---|
CH706748A1 (en) | 2014-01-31 |
EP2687918B1 (en) | 2015-03-04 |
EP2687918A1 (en) | 2014-01-22 |
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Legal Events
Date | Code | Title | Description |
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PFA | Name/firm changed |
Owner name: LVMH SWISS MANUFACTURES SA, CH Free format text: FORMER OWNER: LVMH SWISS MANUFACTURES SA, CH |
|
NV | New agent |
Representative=s name: BOVARD SA NEUCHATEL CONSEILS EN PROPRIETE INTE, CH |
|
PL | Patent ceased |