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EP2260355A1 - Timepiece with dial having a rotary index - Google Patents

Timepiece with dial having a rotary index

Info

Publication number
EP2260355A1
EP2260355A1 EP09728877A EP09728877A EP2260355A1 EP 2260355 A1 EP2260355 A1 EP 2260355A1 EP 09728877 A EP09728877 A EP 09728877A EP 09728877 A EP09728877 A EP 09728877A EP 2260355 A1 EP2260355 A1 EP 2260355A1
Authority
EP
European Patent Office
Prior art keywords
dial
timepiece according
index
display surface
control member
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.)
Granted
Application number
EP09728877A
Other languages
German (de)
French (fr)
Other versions
EP2260355B1 (en
Inventor
André Saunier
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP2260355A1 publication Critical patent/EP2260355A1/en
Application granted granted Critical
Publication of EP2260355B1 publication Critical patent/EP2260355B1/en
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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
    • G04B45/00—Time pieces of which the indicating means or cases provoke special effects, e.g. aesthetic effects
    • G04B45/003—Inscriptions and pictures moved by hand
    • 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

Definitions

  • the present invention relates to the field of watchmaking. It relates more particularly to a timepiece comprising: a frame defining a housing for receiving a watch movement, and a dial disposed on the frame and defining a plane, the dial having at least one opening, dimensioned so as to leave visible at least one index rotatably mounted on the frame.
  • the document CH684814 discloses a timepiece as defined above, wherein the rotary indexes are pivotally mounted along axes arranged in parallel with reference to the plane defined by the dial.
  • the indexes are of the prismatic type and have several faces, intended to be either displayed or hidden. When displayed, one face of the prism is fully visible in the opening of the dial.
  • This device has the particular disadvantage of requiring a relatively large thickness, so that the prism can be housed and can rotate.
  • the openings of the dial may be partially gaping, depending on the shape of the prisms, which can be considered unattractive.
  • the present invention aims to propose a timepiece whose dial allows to present several visual aspects, a user can make appear at will, while solving the aforementioned drawbacks.
  • the invention relates to a timepiece as defined in the first paragraph above, characterized in that the index is rotatably mounted along an axis substantially perpendicular to the plane of the dial and having a display surface located on the side of the dial, oriented in a plane substantially parallel to that of the dial.
  • a cover is positioned to partially cover the display surface, sharing said display surface in a first hidden portion and a second visible portion.
  • the timepiece further comprises a control member that can be actuated by a user, associated with kinematic transmission means connecting the control member and the index, so that an action on the organ control causes rotation of the rotary index, so that the visible portion becomes hidden and at least the bulk of the hidden portion becomes visible.
  • FIG. 1 is a top view of a part timepiece according to a first embodiment
  • - Figures 2, 3 and 4 are sectional views, along different axes, of the timepiece of Figure 1
  • Figures 5 and 6 are respectively views from above and in section of a timepiece according to a second embodiment
  • - Figure 7 is a sectional view of a timepiece according to a third embodiment.
  • FIG. 1 schematically shows a timepiece according to the invention, with a frame 10 defining a housing for receiving a clockwork movement 12, positioned by a flange 13, visible in the sectional figures. Fixing the movement to the frame 10 is done in a conventional manner, for example by a fastening key system, not shown.
  • a dial 14 defining a plane is disposed on the frame 10 so that the movement 12 is not visible and to provide markers for displaying time information in cooperation with moving elements driven by the movement , such as needles.
  • the dial 14 comprises twelve openings 16, preferably of circular shape, centered on the spokes on which are usually placed the indexes.
  • the openings 16 are dimensioned so as to leave visible at least one index 18, provided with a display surface 20, rotatably mounted on the frame as will be described later.
  • the openings 16 allow the passage of the entire display surface 20 of the index.
  • these indexes 18 are rotatably mounted along an axis substantially perpendicular to the plane of the dial.
  • Their display surface 20 is located on the side of the dial and is oriented in a plane substantially parallel to that of the dial 14.
  • Each index comprises an axis 22 provided, jointly with a first of its ends, a board 24 whose surface located on the side opposite the axis forms the display surface 20.
  • the shaft 22 is still provided, integrally at its second end, a pinion 26 The latter is substantially parallel to the board 24 and these two elements are perpendicular to the axis 22.
  • This axis 22 is disposed in a bore 28 formed in the thickness of the frame 10, so as to rotate freely.
  • the axis 22 is dimensioned so that the display surface 20 is flush with the upper surface of the dial 14, visible to the user.
  • the board 24, on the one hand, and the pinion 26, on the other hand, sandwich the frame 10, thus ensuring the positioning of the display surface.
  • a cover 30 is positioned so as to partially cover the display surface 20 of the indexes 18.
  • This cover 30 shares the display surface 20 in a first hidden portion 20a and a second portion 20b visible .
  • the cover 30 is obtained by a rim that presents the watch case 32, typically its middle. The rim passes substantially through the center of the display surface 20, the two portions 20a and 20b being substantially equal. It can be made of a piece or attached to the middle part.
  • the object of the invention is to allow to appear at the envi, one or the other portions 20a and 20b, the other being hidden.
  • the indexes can thus evolve between a first position, in which the portion 20b of their display surface is visible, the other 20a being hidden, and a second position, in which the portion 20b visible in the first position is hidden, and the portion 20a hidden in the first position is essentially visible.
  • the hidden portion in the first position is only visible because, for the timepiece retains a normal appearance, the cache 30 is circular in shape, the like a normal bezel of a round watch case. Therefore, there is an area of the display surface 20, substantially located on a diameter of the surface separating the two portions, which remains hidden in the two positions that the indexes 18 can take.
  • This arrangement can allow particularly interesting sets of designs, in particular by showing numerical indexes or making them disappear in order to have a more harmonious design on the dial, without the index disturbs it.
  • the timepiece offers a control member, visible in Figure 3, accessible from outside the timepiece by the wearer of the watch, and kinematically connected. to the indexes by kinematic transmission means. It will be noted that Figure 3 is a section along an axis passing through the control member.
  • control member takes the form of a knob 34 which can be rotated, like a winding stem crown.
  • the button 34 is mounted on a rod 36 parallel to the plane of the dial 14 and passing through the watch case. The end of the stem
  • the 36 located inside the box carries a toothed wheel 38, meshing with a first toothing 40a of a ring 40.
  • the latter is disposed around the movement 12, parallel to the frame 10 and is capable of rotate around the movement 12.
  • the ring 40 is guided in rotation and is positioned through a groove 42 that includes the frame 10, formed on an extension 10a of the frame, extending towards the bottom of the movement.
  • the first toothing 40a of the ring gear 40 is formed horizontally with reference to FIG. 2, on a first edge 40b of the ring gear 40.
  • the meshing conditions of the first toothing 40a with the gear wheel 38 are thus optimal.
  • a perpendicular gear could also be used.
  • the ring 40 also has a second flange 40c, located on the side of the crown 40 of smaller radius. This second flange 40c has a second toothing 4Od, arranged vertically, with reference to FIG.
  • This second set of teeth 4Od is engaged with the gears 26 of the indexes.
  • the ring 40 thus has a first 40a and a second 4Od teeth, located on either side of a bottom 40e, which can advantageously participate in the positioning and guidance of the index 18.
  • the bottom 40 of the crown can serve as support for the axis 22 of the indexes, as can be seen in Figure 2.
  • the rotation of the indexes 18 it is advantageous to control or even limit the rotation of the indexes 18 so that the portions 20a and 20b defined by the cache 30 pass alternately the hidden position in the visible position, avoiding being in intermediate positions.
  • the rotation of the indexes 18 being controlled by the control member via the rotation of the ring 40, it is advantageous to control the rotation of all the indexes 18 by acting on the rotation of the ring 40, which is easier than act on the rotation of the button 34.
  • the ring therefore comprises limiting members of the rotation of the indexes.
  • the rotation of the ring 40 is controlled, as shown in FIG. 4, thanks to an element 44, such as a pin, disposed projecting on the frame 10 and cooperating with a recess 46 formed in the bottom 40 the crown 40, the recess 46 having an arcuate shape, concentric with the ring 40.
  • the length of the recess 46 is defined so as to have a desired rotation of the indexes 18, the element 44 being unable to move within the hollow 46.
  • the rotation of the indexes 18 is close to 180 °.
  • the skilled person may also provide a notch, allowing the user to feel when the controlled positions of the indexes are reached.
  • the element 44 can mount the element 44 on a spring system, to achieve the notch by cooperating with a relief of the recess.
  • the element can then be a spring ball, mounted movably at the end of a tube.
  • a friction or torque limiting system may be interposed between the button 34 and the ring gear 40 so that, when the ring gear is locked in rotation, any breakage is avoided if the carrier forces on the button.
  • the indexes 18 are capable of changing between - a first position, in which a portion 20b of their display surface is visible, the other 20a being hidden, and a second position, in which the portion 20b visible in the first position is hidden, and the portion 20a hidden in the first position is essentially visible.
  • the wearer can operate the button 34 by rotating in a first direction.
  • the toothed wheel 38 will then cause the rotation of the ring 40, via the first toothing 40a.
  • the ring gear 40 then causes the indexes 18 to rotate, by meshing the second set of teeth 4Od with the pinion 26 of each index finger 18.
  • the indexes have reached their second position when the movable element takes place in the relief of the recess.
  • the return of the indexes to their first position can be to do either by a reverse rotation of the button 34, or by continuing the rotation of the button in the same direction and bringing the movable element in a subsequent relief that includes the recess.
  • Figures 5 and 6 propose a second embodiment, distinguished from the first by the embodiment of the cover 30.
  • the openings 16 formed in the dial 14 are dimensioned so as to leave visible each index 18, but only partially, of so that the dial 14 itself defines the cache 30.
  • This arrangement has the advantage of allowing more latitude in the shape of the openings 16 and covers 30, without harming the overall aesthetics of the room.
  • the openings 18 may be perfectly semi-circular, sharing the display area 20 in two equal half-circles.
  • This embodiment can also make it possible to envisage that the cover 30 covers only a sector of 360 / N degrees, the display surface 20 being divided into N equal portions, appearing successively or not on the dial. In this case, the display surfaces may not even be circular and may be in the shape of a regular polygon.
  • the notch marking of the different positions of the ring 40 is then very useful for marking the successive positions taken by the indexes 18.
  • the display surface 20 is located at a slightly lower level for reference. on the surface of the dial.
  • FIG. 7 shows a further variant, in which the surface of Index display 18 is located at a slightly higher level with reference to the surface of the dial. It is, just as in the first embodiment described, elements of the box 32 which constitute the cache 30.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electromechanical Clocks (AREA)
  • Measurement Of Predetermined Time Intervals (AREA)

Abstract

The invention relates to a timepiece comprising: a frame (10) defining a housing designed to accommodate a timepiece movement; and a dial (14) positioned on the frame and defining a plane, the dial comprising at least one opening (16) whose dimensions are such as to allow at least one index (18) mounted rotationally on the frame to be seen.

Description

Description Description
PIECE D'HORLOGERIE MUNIE D'UN CADRAN A INDEX ROTATIF Domaine techniqueTIMEPIECE WITH ROTARY INDEX DIALER Technical field
[0001] La présente invention se rapporte au domaine de l'horlogerie. Elle concerne plus particulièrement une pièce d'horlogerie comprenant : un bâti définissant un logement destiné à recevoir un mouvement d'horlogerie, et un cadran disposé sur le bâti et définissant un plan, le cadran comportant au moins une ouverture, dimensionnée de manière à laisser visible au moins un index monté rotatif sur le bâti.The present invention relates to the field of watchmaking. It relates more particularly to a timepiece comprising: a frame defining a housing for receiving a watch movement, and a dial disposed on the frame and defining a plane, the dial having at least one opening, dimensioned so as to leave visible at least one index rotatably mounted on the frame.
Etat de la techniqueState of the art
[0002] Le document CH684814 divulgue une pièce d'horlogerie tel que définie ci- dessus, dans laquelle les index rotatifs sont montés pivotants selon des axes disposés parallèlement en référence au plan défini par le cadran. Selon ce document, les index sont de type prismatique et présentent plusieurs faces, destinées à être soit affichées, soit cachées. Lorsqu'elle est affichée, une face du prisme est entièrement visible dans l'ouverture du cadran. Ce dispositif présente notamment l'inconvénient de nécessiter une épaisseur relativement importante, de manière à ce que le prisme puisse être logé et puisse pivoter. En outre, lors du pivotement des prismes, les ouvertures du cadran peuvent être partiellement béantes, selon la forme des prismes, ce qui peut être considéré comme peu esthétique.The document CH684814 discloses a timepiece as defined above, wherein the rotary indexes are pivotally mounted along axes arranged in parallel with reference to the plane defined by the dial. According to this document, the indexes are of the prismatic type and have several faces, intended to be either displayed or hidden. When displayed, one face of the prism is fully visible in the opening of the dial. This device has the particular disadvantage of requiring a relatively large thickness, so that the prism can be housed and can rotate. In addition, during the pivoting of the prisms, the openings of the dial may be partially gaping, depending on the shape of the prisms, which can be considered unattractive.
[0003] La présente invention a pour but de proposer une pièce d'horlogerie dont le cadran permet de présenter plusieurs aspects visuels, qu'un utilisateur peut faire apparaître à volonté, tout en résolvant les inconvénients précités.The present invention aims to propose a timepiece whose dial allows to present several visual aspects, a user can make appear at will, while solving the aforementioned drawbacks.
Divulgation de l'inventionDisclosure of the invention
[0004] De manière plus précise, l'invention porte sur une pièce d'horlogerie telle que définie au premier paragraphe ci-dessus, caractérisée en ce que l'index est monté rotatif selon un axe essentiellement perpendiculaire au plan du cadran et présentant une surface d'affichage située du côté du cadran, orientée selon un plan sensiblement parallèle à celui du cadran. Un cache est positionné de manière à recouvrir partiellement la surface d'affichage, partageant ladite surface d'affichage en une première portion cachée et une deuxième portion visible. La pièce d'horlogerie comprend encore un organe de commande susceptible d'être actionné par un utilisateur, associé à des moyens de transmission cinématique reliant l'organe de commande et l'index, de manière à ce qu'une action sur l'organe de commande entraîne la rotation de l'index rotatif, pour que la portion visible devienne cachée et qu'au moins l'essentiel de la portion cachée devienne visible. [0005] D'autres caractéristiques avantageuses de l'invention sont définies dans les revendications dépendantes. Brève description des dessins [0006] D'autres caractéristiques de la présente invention apparaîtront plus clairement à la lecture de la description qui va suivre, faite en référence au dessin annexé, dans lequel: la figure 1 est une vue de dessus d'une pièce d'horlogerie selon un premier mode de réalisation, - les figures 2, 3 et 4 sont des vues en coupe, selon différents axes, de la pièce d'horlogerie de la figure 1 , les figures 5 et 6 sont respectivement des vues de dessus et en coupe d'une pièce d'horlogerie selon un deuxième mode de réalisation, et - la figure 7 est une vue en coupe d'une pièce d'horlogerie selon un troisième mode de réalisation. Mode(s) de réalisation de l'inventionMore specifically, the invention relates to a timepiece as defined in the first paragraph above, characterized in that the index is rotatably mounted along an axis substantially perpendicular to the plane of the dial and having a display surface located on the side of the dial, oriented in a plane substantially parallel to that of the dial. A cover is positioned to partially cover the display surface, sharing said display surface in a first hidden portion and a second visible portion. The timepiece further comprises a control member that can be actuated by a user, associated with kinematic transmission means connecting the control member and the index, so that an action on the organ control causes rotation of the rotary index, so that the visible portion becomes hidden and at least the bulk of the hidden portion becomes visible. [0005] Other advantageous features of the invention are defined in the dependent claims. BRIEF DESCRIPTION OF THE DRAWINGS [0006] Other features of the present invention will emerge more clearly on reading the description which follows, made with reference to the appended drawing, in which: FIG. 1 is a top view of a part timepiece according to a first embodiment, - Figures 2, 3 and 4 are sectional views, along different axes, of the timepiece of Figure 1, Figures 5 and 6 are respectively views from above and in section of a timepiece according to a second embodiment, and - Figure 7 is a sectional view of a timepiece according to a third embodiment. Mode (s) of realization of the invention
[0007] La figure 1 représente schématiquement une pièce d'horlogerie selon l'invention, dotée d'un bâti 10 définissant un logement destiné à recevoir un mouvement d'horlogerie 12, positionné par un rebord 13, visible sur les figures en coupe. La fixation du mouvement au bâti 10 se fait de manière conventionnelle, par exemple par un système de clés de fixation, non représenté.Figure 1 schematically shows a timepiece according to the invention, with a frame 10 defining a housing for receiving a clockwork movement 12, positioned by a flange 13, visible in the sectional figures. Fixing the movement to the frame 10 is done in a conventional manner, for example by a fastening key system, not shown.
[0008] De manière courante, un cadran 14 définissant un plan est disposé sur le bâti 10 pour que le mouvement 12 ne soit pas visible et pour fournir des repères permettant d'afficher des informations horaires en coopération avec des éléments mobiles entraînés par le mouvement, tels que des aiguilles.Currently, a dial 14 defining a plane is disposed on the frame 10 so that the movement 12 is not visible and to provide markers for displaying time information in cooperation with moving elements driven by the movement , such as needles.
Dans des cadrans conventionnels, il est habituel d'avoir douze index, régulièrement répartis à la périphérie du cadran, afin de permettre la lecture de l'heure en référence à la position des éléments mobiles.In conventional dials, it is usual to have twelve indexes, regularly distributed around the periphery of the dial, to allow the reading of the time with reference to the position of the moving elements.
[0009] Selon l'invention, le cadran 14 comporte douze ouvertures 16, de préférence de forme circulaire, centrées sur les rayons sur lesquels sont habituellement posés les index. Les ouvertures 16 sont dimensionnées de manière à laisser visible au moins un index 18, muni d'une surface d'affichage 20, monté rotatif sur le bâti comme on le décrira plus loin. Ainsi qu'on peut le voir sur la figure 2, dans ce mode de réalisation, les ouvertures 16 permettent le passage de toute la surface d'affichage 20 de l'index. [0010] En référence à la figure 2 montrant une coupe passant par le centre de la surface d'affichage 20 d'un index, ces index 18 sont montés rotatifs selon un axe essentiellement perpendiculaire au plan du cadran. Leur surface d'affichage 20 est située du côté du cadran et est orientée selon un plan sensiblement parallèle à celui du cadran 14. [0011] Nous allons maintenant décrire le pivotement des index 18. Chaque index comporte un axe 22 doté, solidairement à une première de ses extrémités, d'une planche 24 dont la surface située du côté opposé à l'axe forme la surface d'affichage 20. L'axe 22 est encore doté, solidairement au niveau de sa deuxième extrémité, d'un pignon 26. Ce dernier est sensiblement parallèle à la planche 24 et ces deux éléments sont perpendiculaires à l'axe 22. Cet axe 22 est disposé dans un alésage 28 ménagé dans l'épaisseur du bâti 10, de manière à pouvoir y tourner librement. Dans ce mode de réalisation, l'axe 22 est dimensionné de manière à ce que la surface d'affichage 20 affleure avec la surface supérieure du cadran 14, visible par l'utilisateur. La planche 24, d'une part, et le pignon 26, d'autre part, prennent en sandwich le bâti 10, assurant ainsi le positionnement de la surface d'affichage.According to the invention, the dial 14 comprises twelve openings 16, preferably of circular shape, centered on the spokes on which are usually placed the indexes. The openings 16 are dimensioned so as to leave visible at least one index 18, provided with a display surface 20, rotatably mounted on the frame as will be described later. As can be seen in Figure 2, in this embodiment, the openings 16 allow the passage of the entire display surface 20 of the index. Referring to Figure 2 showing a section through the center of the display surface 20 of an index, these indexes 18 are rotatably mounted along an axis substantially perpendicular to the plane of the dial. Their display surface 20 is located on the side of the dial and is oriented in a plane substantially parallel to that of the dial 14. [0011] We will now describe the pivoting of the indexes 18. Each index comprises an axis 22 provided, jointly with a first of its ends, a board 24 whose surface located on the side opposite the axis forms the display surface 20. The shaft 22 is still provided, integrally at its second end, a pinion 26 The latter is substantially parallel to the board 24 and these two elements are perpendicular to the axis 22. This axis 22 is disposed in a bore 28 formed in the thickness of the frame 10, so as to rotate freely. In this embodiment, the axis 22 is dimensioned so that the display surface 20 is flush with the upper surface of the dial 14, visible to the user. The board 24, on the one hand, and the pinion 26, on the other hand, sandwich the frame 10, thus ensuring the positioning of the display surface.
[0012] Selon l'invention, un cache 30 est positionné de manière à recouvrir partiellement la surface d'affichage 20 des index 18. Ce cache 30 partage la surface d'affichage 20 en une première portion 20a cachée et une deuxième portion 20b visible. Dans le mode de réalisation de la figure 2, le cache 30 est obtenu par un rebord que présente la boîte de montre 32, typiquement sa carrure. Le rebord passe sensiblement par le centre de la surface d'affichage 20, les deux portions 20a et 20b étant sensiblement égales. Il peut être réalisé d'une pièce ou rapporté sur la carrure.According to the invention, a cover 30 is positioned so as to partially cover the display surface 20 of the indexes 18. This cover 30 shares the display surface 20 in a first hidden portion 20a and a second portion 20b visible . In the embodiment of Figure 2, the cover 30 is obtained by a rim that presents the watch case 32, typically its middle. The rim passes substantially through the center of the display surface 20, the two portions 20a and 20b being substantially equal. It can be made of a piece or attached to the middle part.
[0013] Le but de l'invention est de permettre de faire apparaître à l'envi, l'une ou l'autre des portions 20a et 20b, l'autre étant cachée. Les index peuvent donc évoluer entre une première position, dans laquelle la portion 20b de leur surface d'affichage est visible, l'autre 20a étant cachée, et une deuxième position, dans laquelle la portion 20b visible dans la première position est cachée, et la portion 20a cachée dans la première position est essentiellement visible. [0014] On notera que, dans la deuxième position, la portion cachée dans la première position n'est qu'essentiellement visible car, pour que la pièce d'horlogerie conserve une apparence normale, le cache 30 est de forme circulaire, à l'instar d'une lunette normale d'une boite de montre ronde. De ce fait, il y a une zone de la surface d'affichage 20, sensiblement située sur un diamètre de la surface séparant les deux portions, qui reste cachée dans les deux positions que peuvent prendre les index 18.The object of the invention is to allow to appear at the envi, one or the other portions 20a and 20b, the other being hidden. The indexes can thus evolve between a first position, in which the portion 20b of their display surface is visible, the other 20a being hidden, and a second position, in which the portion 20b visible in the first position is hidden, and the portion 20a hidden in the first position is essentially visible. Note that in the second position, the hidden portion in the first position is only visible because, for the timepiece retains a normal appearance, the cache 30 is circular in shape, the like a normal bezel of a round watch case. Therefore, there is an area of the display surface 20, substantially located on a diameter of the surface separating the two portions, which remains hidden in the two positions that the indexes 18 can take.
[0015] Cette disposition peut permettre des jeux de designs particulièrement intéressants, notamment en faisant apparaître des index numériques ou en les faisant disparaître afin d'avoir un dessin plus harmonieux sur le cadran, sans que les index le perturbe.This arrangement can allow particularly interesting sets of designs, in particular by showing numerical indexes or making them disappear in order to have a more harmonious design on the dial, without the index disturbs it.
[0016] Pour entraîner la rotation de ces index 18, la pièce d'horlogerie propose un organe de commande, visible sur la figure 3, accessible depuis l'extérieur de la pièce d'horlogerie par le porteur de la montre, et reliés cinématiquement aux index par des moyens de transmission cinématique. On relèvera que la figure 3 est une coupe selon un axe passant par l'organe de commande.To cause the rotation of these indexes 18, the timepiece offers a control member, visible in Figure 3, accessible from outside the timepiece by the wearer of the watch, and kinematically connected. to the indexes by kinematic transmission means. It will be noted that Figure 3 is a section along an axis passing through the control member.
Selon le mode de réalisation illustré sur les figures, l'organe de commande prend la forme d'un bouton 34 susceptible d'être entraînée en rotation, à l'instar d'une couronne de tige de remontoir.According to the embodiment illustrated in the figures, the control member takes the form of a knob 34 which can be rotated, like a winding stem crown.
[0017] De manière plus détaillée, le bouton 34 est monté sur une tige 36 parallèle au plan du cadran 14 et traversant la boite de montre. L'extrémité de la tigeIn more detail, the button 34 is mounted on a rod 36 parallel to the plane of the dial 14 and passing through the watch case. The end of the stem
36 située à l'intérieur de la boite porte une roue dentée 38, engrenant avec une première denture 40a d'une couronne 40. Cette dernière est disposée autour du mouvement 12, parallèlement au bâti 10 et est susceptible de pivoter autour du mouvement 12. La couronne 40 est guidée en rotation et est positionnée grâce à une gorge 42 que comporte le bâti 10, ménagée sur une extension 10a du bâti, s'étendant en direction du fond du mouvement. [0018] De préférence, la première denture 40a de la couronne 40 est ménagée horizontalement en référence à la figure 2, sur un premier rebord 40b de la couronne 40. Les conditions d'engrènement de la première denture 40a avec la roue dentée 38 sont ainsi optimales. On notera qu'un engrenage perpendiculaire pourrait également être utilisé. [0019] La couronne 40 comporte également un deuxième rebord 40c, situé du côté de la couronne 40 de plus petit rayon. Ce deuxième rebord 40c présente une deuxième denture 4Od, disposée verticalement, en référence à la figure 3.36 located inside the box carries a toothed wheel 38, meshing with a first toothing 40a of a ring 40. The latter is disposed around the movement 12, parallel to the frame 10 and is capable of rotate around the movement 12. The ring 40 is guided in rotation and is positioned through a groove 42 that includes the frame 10, formed on an extension 10a of the frame, extending towards the bottom of the movement. Preferably, the first toothing 40a of the ring gear 40 is formed horizontally with reference to FIG. 2, on a first edge 40b of the ring gear 40. The meshing conditions of the first toothing 40a with the gear wheel 38 are thus optimal. Note that a perpendicular gear could also be used. The ring 40 also has a second flange 40c, located on the side of the crown 40 of smaller radius. This second flange 40c has a second toothing 4Od, arranged vertically, with reference to FIG.
Cette deuxième denture 4Od est en prise avec les pignons 26 des index.This second set of teeth 4Od is engaged with the gears 26 of the indexes.
[0020] La couronne 40 présente donc une première 40a et une deuxième 4Od dentures, situées de part et d'autre d'un fond 40e, qui peut avantageusement participer au positionnement et au guidage des index 18. Ainsi, le fond 40e de la couronne peut servir d'appui pour l'axe 22 des index, comme on peut le voir sur la figure 2.The ring 40 thus has a first 40a and a second 4Od teeth, located on either side of a bottom 40e, which can advantageously participate in the positioning and guidance of the index 18. Thus, the bottom 40 of the crown can serve as support for the axis 22 of the indexes, as can be seen in Figure 2.
[0021] Pour optimiser le fonctionnement d'une pièce d'horlogerie selon l'invention, il est avantageux de contrôler, voire de limiter la rotation des index 18 afin que, les portions 20a et 20b définies par le cache 30 passent bien alternativement de la position cachée à la position visible, en évitant de se retrouver dans des positions intermédiaires. La rotation des index 18 étant commandée par l'organe de commande via la rotation de la couronne 40, il est avantageux de contrôler la rotation de tous les index 18 en agissant sur la rotation de la couronne 40, ce qui est plus aisé que d'agir sur la rotation du bouton 34.To optimize the operation of a timepiece according to the invention, it is advantageous to control or even limit the rotation of the indexes 18 so that the portions 20a and 20b defined by the cache 30 pass alternately the hidden position in the visible position, avoiding being in intermediate positions. The rotation of the indexes 18 being controlled by the control member via the rotation of the ring 40, it is advantageous to control the rotation of all the indexes 18 by acting on the rotation of the ring 40, which is easier than act on the rotation of the button 34.
[0022] Pour ce faire, la couronne comporte donc des organes de limitation de la rotation des index. Dans ce but, la rotation de la couronne 40 est contrôlée, comme le montre la figure 4, grâce à un élément 44, tel qu'une goupille, disposé en saillie sur le bâti 10 et coopérant avec une creusure 46 ménagée dans le fond 40e de la couronne 40, la creusure 46 ayant une forme d'arc de cercle, concentrique à la couronne 40. La longueur de la creusure 46 est définie de manière à avoir une rotation voulue des index 18, l'élément 44 ne pouvant se déplacer qu'à l'intérieur de la creusure 46. De préférence, comme dans le mode de réalisation représenté, la rotation des index 18 est voisine de 180°. L'homme du métier peut également prévoir de réaliser un cran, permettant à l'utilisateur de sentir quand les positions contrôlées des index sont atteintes. Par exemple, il peut monter l'élément 44 sur un système ressort, permettant de réaliser le cran en coopérant avec un relief de la creusure. L'élément peut alors être une bille à ressort, monté mobile à l'extrémité d'un tube. Dans ce cas, il est possible de permettre à l'utilisateur de tourner le bouton 34 sans limitation, dans un sens ou dans l'autre, celui-ci sentant simplement les crans lorsque les index sont dans la position souhaitée. On notera que, par sécurité, un système de friction ou de limitation de couple peut être interposé entre le bouton 34 et la couronne 40 de manière à ce que, lorsque la couronne est bloquée en rotation, toute casse soit évitée si le porteur force sur le bouton.To do this, the ring therefore comprises limiting members of the rotation of the indexes. For this purpose, the rotation of the ring 40 is controlled, as shown in FIG. 4, thanks to an element 44, such as a pin, disposed projecting on the frame 10 and cooperating with a recess 46 formed in the bottom 40 the crown 40, the recess 46 having an arcuate shape, concentric with the ring 40. The length of the recess 46 is defined so as to have a desired rotation of the indexes 18, the element 44 being unable to move within the hollow 46. Preferably, as in the embodiment shown, the rotation of the indexes 18 is close to 180 °. The skilled person may also provide a notch, allowing the user to feel when the controlled positions of the indexes are reached. For example, it can mount the element 44 on a spring system, to achieve the notch by cooperating with a relief of the recess. The element can then be a spring ball, mounted movably at the end of a tube. In this case, it is possible to allow the user to turn the knob 34 without limitation, in one direction or the other, the latter simply feeling the notches when the indexes are in the desired position. It should be noted that, for safety reasons, a friction or torque limiting system may be interposed between the button 34 and the ring gear 40 so that, when the ring gear is locked in rotation, any breakage is avoided if the carrier forces on the button.
[0023] Ainsi, en fonctionnement, les index 18 sont susceptibles d'évoluer entre - une première position, dans laquelle une portion 20b de leur surface d'affichage est visible, l'autre 20a étant cachée, et une deuxième position, dans laquelle la portion 20b visible dans la première position est cachée, et la portion 20a cachée dans la première position est essentiellement visible. [0024] Lorsque les index 18 sont dans leur première position, le porteur peut actionner le bouton 34 en le faisant pivoter dans une première direction. La roue dentée 38 va alors entraîner la rotation de la couronne 40, via la première denture 40a. La couronne 40 entraîne alors la rotation des index 18, par l'engrènement de la deuxième denture 4Od avec le pignon 26 de chaque index 18.Thus, in operation, the indexes 18 are capable of changing between - a first position, in which a portion 20b of their display surface is visible, the other 20a being hidden, and a second position, in which the portion 20b visible in the first position is hidden, and the portion 20a hidden in the first position is essentially visible. When the indexes 18 are in their first position, the wearer can operate the button 34 by rotating in a first direction. The toothed wheel 38 will then cause the rotation of the ring 40, via the first toothing 40a. The ring gear 40 then causes the indexes 18 to rotate, by meshing the second set of teeth 4Od with the pinion 26 of each index finger 18.
[0025] Lorsque l'élément en saillie 44 a atteint l'extrémité de la creusure 46, les index 18 ont pivoté de manière à se trouver dans la deuxième position ci- dessus. La rotation de la couronne 40 est ainsi stoppée. Un actionnement inverse sur le bouton 34 permet de ramener les index 18 de leur deuxième à leur première position.When the projecting element 44 has reached the end of the recess 46, the indexes 18 have pivoted so as to be in the second position above. The rotation of the crown 40 is thus stopped. Inverse operation on the button 34 makes it possible to return the indexes 18 of their second to their first position.
[0026] Alternativement, avec un système de positionnement à cran, les index ont atteint leur deuxième position lorsque l'élément mobile prend place dans le relief de la creusure. Le retour des index à leur première position peut se faire soit par une rotation inverse du bouton 34, soit en poursuivant la rotation du bouton dans le même sens et en amenant l'élément mobile dans un relief suivant que comporte la creusure.Alternatively, with a notch positioning system, the indexes have reached their second position when the movable element takes place in the relief of the recess. The return of the indexes to their first position can be to do either by a reverse rotation of the button 34, or by continuing the rotation of the button in the same direction and bringing the movable element in a subsequent relief that includes the recess.
[0027] Les figures 5 et 6 proposent un deuxième mode de réalisation, se distinguant du premier par la réalisation du cache 30. Les ouvertures 16 ménagées dans le cadran 14 sont dimensionnées de manière à laisser visible chaque index 18, mais seulement partiellement, de sorte que le cadran 14 définit lui-même le cache 30. Cette disposition a l'avantage de permettre plus de latitude au niveau de la forme des ouvertures 16 et des caches 30, sans nuire à l'esthétisme global de la pièce. Ainsi, les ouvertures 18 peuvent être parfaitement semi-circulaires, partageant la zone d'affichage 20 en deux demi-cercles égaux. Ce mode de réalisation peut également permettre d'envisager que le cache 30 ne recouvre qu'un secteur de 360/N degrés, la surface d'affichage 20 étant divisée en N portions égales, apparaissant successivement ou non sur le cadran. Dans ce cas, les surfaces d'affichage peuvent même ne pas être circulaires et être en forme de polygone régulier. Le marquage par cran des différentes positions de la couronne 40 est alors fort utile pour marquer les positions successives prises par les index 18. Dans ce mode de réalisation, on relèvera que la surface d'affichage 20 est située à un niveau légèrement inférieur en référence à la surface du cadran.Figures 5 and 6 propose a second embodiment, distinguished from the first by the embodiment of the cover 30. The openings 16 formed in the dial 14 are dimensioned so as to leave visible each index 18, but only partially, of so that the dial 14 itself defines the cache 30. This arrangement has the advantage of allowing more latitude in the shape of the openings 16 and covers 30, without harming the overall aesthetics of the room. Thus, the openings 18 may be perfectly semi-circular, sharing the display area 20 in two equal half-circles. This embodiment can also make it possible to envisage that the cover 30 covers only a sector of 360 / N degrees, the display surface 20 being divided into N equal portions, appearing successively or not on the dial. In this case, the display surfaces may not even be circular and may be in the shape of a regular polygon. The notch marking of the different positions of the ring 40 is then very useful for marking the successive positions taken by the indexes 18. In this embodiment, it will be noted that the display surface 20 is located at a slightly lower level for reference. on the surface of the dial.
Ce dernier peut présenter un épaulement recouvrant légèrement l'index, afin de participer à son positionnement. On notera également que, pour optimiser l'épaisseur occupée par les index, la planche 24 peut être disposée, partiellement ou totalement dans l'épaisseur du cadran 14. [0028] La figure 7 montre une variante supplémentaire, dans laquelle la surface d'affichage 20 des index 18 est située à un niveau légèrement supérieur en référence à la surface du cadran. C'est, tout comme dans le premier mode de réalisation décrit, des éléments de la boite 32 qui constituent le cache 30.The latter may have a shoulder slightly covering the index, to participate in its positioning. Note also that, to optimize the thickness occupied by the indexes, the board 24 may be arranged, partially or totally in the thickness of the dial 14. FIG. 7 shows a further variant, in which the surface of Index display 18 is located at a slightly higher level with reference to the surface of the dial. It is, just as in the first embodiment described, elements of the box 32 which constitute the cache 30.
[0029] La description ci-dessus a été donnée à titre d'illustration non limitative de l'invention. Ainsi, il n'est évidemment pas nécessaire d'avoir douze index rotatifs. Il peut très bien n'y en avoir qu'un ou un nombre indifférent. Par ailleurs, les illustrations représentent des cadrans circulaires, ce qui est effectivement avantageux pour la réalisation de l'invention. On notera toutefois que le deuxième mode de réalisation permet d'avoir un cadran ou une boite de forme carrée ou rectangulaire, sous laquelle prend place la bague. En outre, l'organe de commande de la rotation des index peut ne pas être un bouton susceptible d'être entraîné en rotation. L'homme du métier saura agencer d'autres organes de commandes capables de mettre la couronne en rotation. Cette rotation peut être obtenue par un verrou coulissant dans le bord de la boite, le verrou étant associé à un secteur denté. Un poussoir coopérant avec un râteau ou une crémaillère peut également être utilisé. The above description has been given by way of non-limiting illustration of the invention. Thus, it is obviously not necessary to have twelve rotary indexes. There may very well be one or an indifferent number. Furthermore, the illustrations represent circular dials, which is indeed advantageous for the realization of the invention. We will note however, the second embodiment makes it possible to have a dial or box of square or rectangular shape, under which the ring takes place. In addition, the control member for the rotation of the indexes may not be a button capable of being rotated. Those skilled in the art will be able to arrange other control members capable of rotating the crown. This rotation can be obtained by a sliding latch in the edge of the box, the latch being associated with a toothed sector. A pusher cooperating with a rake or a rack can also be used.

Claims

Revendications claims
1. Pièce d'horlogerie comprenant1. Timepiece comprising
- un bâti (10) définissant un logement destiné à recevoir un mouvement d'horlogerie, - un cadran (14) disposé sur le bâti et définissant un plan, le cadran comportant au moins une ouverture (16), dimensionnée de manière à laisser visible au moins un index (18) monté rotatif sur le bâti, caractérisée en ce que :- a frame (10) defining a housing for receiving a watch movement, - a dial (14) disposed on the frame and defining a plane, the dial having at least one opening (16), dimensioned so as to leave visible at least one index (18) rotatably mounted on the frame, characterized in that:
- l'index (18) est monté rotatif selon un axe (22) essentiellement perpendiculaire au plan du cadran et présentant une surface d'affichage (20) située du côté du cadran, orientée selon un plan sensiblement parallèle à celui du cadran, un cache (30) positionné de manière à recouvrir partiellement la surface d'affichage (20) et à la partager en une première portion (20a) cachée et une deuxième portion (20b) visible,- The index (18) is rotatably mounted along an axis (22) substantially perpendicular to the plane of the dial and having a display surface (20) located on the dial side, oriented in a plane substantially parallel to that of the dial, a cover (30) positioned to partially cover the display surface (20) and divide it into a first hidden portion (20a) and a second visible portion (20b),
- la pièce d'horlogerie comprend un organe de commande, associé à des moyens de transmission cinématique reliant l'organe de commande et l'index (18), de manière à ce qu'une action sur l'organe de commande entraîne la rotation de l'index rotatif, pour que la première portion (20a) devienne cachée et qu'au moins l'essentiel de la deuxième portion (20b) devienne visible.- The timepiece comprises a control member, associated with kinematic transmission means connecting the control member and the index (18), so that an action on the control member causes the rotation. the rotary index, so that the first portion (20a) becomes hidden and at least the bulk of the second portion (20b) becomes visible.
2. Pièce d'horlogerie selon la revendication 1 , caractérisée en ce que la surface d'affichage (20) de l'index (18) affleure avec la surface supérieure du cadran (14).2. Timepiece according to claim 1, characterized in that the display surface (20) of the index (18) is flush with the upper surface of the dial (14).
3. Pièce d'horlogerie selon la revendication 1 , caractérisée en ce que le cadran (14) définit lui-même le cache (30).3. Timepiece according to claim 1, characterized in that the dial (14) itself defines the cover (30).
4. Pièce d'horlogerie selon la revendication précédente, caractérisée en ce que le cache recouvre un secteur de 360/N degrés, la surface d'affichage (20) étant divisée en N portions égales.4. Timepiece according to the preceding claim, characterized in that the cover covers a sector of 360 / N degrees, the display surface (20) being divided into N equal portions.
5. Pièce d'horlogerie selon la revendication 1 , caractérisée en ce que la surface d'affichage (20) des index (18) est située à un niveau légèrement supérieur en référence à la surface du cadran (14). 5. Timepiece according to claim 1, characterized in that the display surface (20) of the indexes (18) is located at a slightly higher level with reference to the surface of the dial (14).
6. Pièce d'horlogerie selon l'une des revendications précédentes, caractérisée en ce que les moyens de transmission cinématique comprennent une couronne (40) présentant une première (40a) et une deuxième (4Od) dentures, engrenant respectivement avec une roue dentée (38) entraînée en rotation par l'organe de commande, et avec un pignon (26) solidaire en rotation de la surface d'affichage.6. Timepiece according to one of the preceding claims, characterized in that the kinematic transmission means comprise a ring gear (40) having a first (40a) and a second (40d) set of teeth meshing respectively with a toothed wheel ( 38) driven in rotation by the control member, and with a pinion (26) integral in rotation with the display surface.
7. Pièce d'horlogerie selon l'une des revendications précédentes, caractérisée en ce que les moyens de transmission cinématique comportent des organes de limitation de la rotation des index.7. Timepiece according to one of the preceding claims, characterized in that the kinematic transmission means comprise members for limiting the rotation of the indexes.
8. Pièce d'horlogerie selon les revendications 6 et 7, caractérisée en ce qu'un élément (44) est disposé en saillie sur le bâti (10) et est agencé de manière à coopérer avec une creusure (46) ménagée dans la couronne (40), ladite creusure (46) ayant une forme d'arc de cercle, concentrique à la couronne (40).8. Timepiece according to claims 6 and 7, characterized in that a member (44) is arranged projecting on the frame (10) and is arranged to cooperate with a recess (46) in the crown (40), said recess (46) having an arcuate shape, concentric with the ring (40).
9. Pièce d'horlogerie selon l'une des revendications précédentes, caractérisée en ce que l'organe de commande est susceptible d'être actionné par un utilisateur, de manière à ce qu'une action manuelle sur l'organe de commande entraîne la rotation de l'index rotatif.9. Timepiece according to one of the preceding claims, characterized in that the control member is operable by a user, so that a manual action on the control member causes the rotation of the rotary index.
10. Pièce d'horlogerie selon la revendication 9, caractérisée en ce que l'organe de commande est un bouton monté mobile en rotation selon un axe parallèle au plan du cadran. 10. Timepiece according to claim 9, characterized in that the control member is a knob mounted to rotate about an axis parallel to the plane of the dial.
11. Pièce d'horlogerie selon l'une des revendications 6 à 10, caractérisée en ce que l'index comporte axe (22) doté, solidairement à une première de ses extrémités, d'une planche (24) dont la surface située du côté opposé à l'axe forme la surface d'affichage (20), ledit axe (22) étant encore doté, solidairement au niveau de sa deuxième extrémité, dudit pignon (26) engrenant avec la deuxième denture (4Od).11. Timepiece according to one of claims 6 to 10, characterized in that the index comprises axis (22) provided, integrally at a first end thereof, a board (24) whose surface located from opposite side to the axis forms the display surface (20), said axis (22) being further provided, solidarily at its second end, said pinion (26) meshing with the second toothing (4Od).
12. Pièce d'horlogerie selon l'une des revendications précédentes, caractérisée en ce qu'elle comprend une pluralité d'index (18) rotatifs, associés chacun à un cache (30), entraînés par ledit organe de commande, via les moyens de transmission cinématique. 12. Timepiece according to one of the preceding claims, characterized in that it comprises a plurality of rotary indexes (18), each associated with a cover (30), driven by said control member, via the means of kinematic transmission.
EP09728877A 2008-04-01 2009-03-30 Timepiece with dial having a rotary index Not-in-force EP2260355B1 (en)

Applications Claiming Priority (2)

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CH4902008 2008-04-01
PCT/EP2009/053762 WO2009121851A1 (en) 2008-04-01 2009-03-30 Timepiece with dial having a rotary index

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EP2260355A1 true EP2260355A1 (en) 2010-12-15
EP2260355B1 EP2260355B1 (en) 2012-07-04

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US (1) US8213269B2 (en)
EP (1) EP2260355B1 (en)
CN (1) CN101999098B (en)
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WO (1) WO2009121851A1 (en)

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WO2009121851A1 (en) 2009-10-08
US20110013495A1 (en) 2011-01-20
CN101999098A (en) 2011-03-30
US8213269B2 (en) 2012-07-03
CN101999098B (en) 2013-05-01
EP2260355B1 (en) 2012-07-04

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