EP3712712A1 - Dial for a timepiece provided with a three-dimensional decoration - Google Patents

Dial for a timepiece provided with a three-dimensional decoration Download PDF

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Publication number
EP3712712A1
EP3712712A1 EP19163395.7A EP19163395A EP3712712A1 EP 3712712 A1 EP3712712 A1 EP 3712712A1 EP 19163395 A EP19163395 A EP 19163395A EP 3712712 A1 EP3712712 A1 EP 3712712A1
Authority
EP
European Patent Office
Prior art keywords
base plate
decoration
dial
fixing screw
dial 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.)
Granted
Application number
EP19163395.7A
Other languages
German (de)
French (fr)
Other versions
EP3712712B1 (en
Inventor
David Hurni
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.)
Montres Jaquet Droz SA
Original Assignee
Montres Jaquet Droz SA
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 Montres Jaquet Droz SA filed Critical Montres Jaquet Droz SA
Priority to EP19163395.7A priority Critical patent/EP3712712B1/en
Priority to JP2020022232A priority patent/JP6888134B2/en
Priority to CN202010182367.5A priority patent/CN111708266B/en
Priority to US16/819,369 priority patent/US11644796B2/en
Publication of EP3712712A1 publication Critical patent/EP3712712A1/en
Application granted granted Critical
Publication of EP3712712B1 publication Critical patent/EP3712712B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • G04B47/00—Time-pieces combined with other articles which do not interfere with the running or the time-keeping of the time-piece
    • G04B47/04—Time-pieces combined with other articles which do not interfere with the running or the time-keeping of the time-piece with attached ornaments or amusement apparatus
    • G04B47/044—Movable decorations and parts thereof
    • 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
    • G04B19/10—Ornamental shape of the graduations or the surface of the dial; Attachment of the graduations to the dial
    • G04B19/103—Ornamental shape of the graduations or the surface of the dial; Attachment of the graduations to the dial attached or inlaid numbers
    • 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
    • G04B19/065—Dials with several parts
    • 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
    • G04B45/0076—Decoration of the case and of parts thereof, e.g. as a method of manufacture thereof
    • 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
    • G04B47/00—Time-pieces combined with other articles which do not interfere with the running or the time-keeping of the time-piece
    • G04B47/04—Time-pieces combined with other articles which do not interfere with the running or the time-keeping of the time-piece with attached ornaments or amusement apparatus

Definitions

  • the present invention relates to the field of watch-making trim components, more particularly to timepieces comprising a dial which supports a three-dimensional decoration.
  • certain timepieces include, between the base plate of the dial and the crystal, a decoration giving a particular personality to the timepiece.
  • the decoration comprises, as the case may be, an automaton, a relief motif, or a combination of both.
  • the decorations can be made with precious and fragile materials, such as glass or mother-of-pearl or with heavier materials such as metal.
  • the document EP-A-3339979 describes a dial provided with a three-dimensional decoration, offset remote from the base plate of the dial and fixed to the base plate via at least one foot.
  • the decoration is mounted on said foot using a cannon designed to be driven out on an upper range of the foot and resting on a shoulder of said foot.
  • This type of fixing is stable but for decorative pieces of significant weight and dimensions, a plurality of feet is necessary, which increases the complexity of the dial.
  • the present invention aims to provide a dial provided with a three-dimensional decoration fixed to the dial by a fixing means which increases the mechanical stability as well as the resistance of the decoration to shocks and vibrations, compared to existing solutions.
  • a base plate 1 of a watch dial according to one embodiment is shown.
  • This is a plate which forms only part of the dial, the latter being produced by assembling the plate 1 with one or more additional plates.
  • the dial comprises a single base plate.
  • a three-dimensional decoration 2 is fixed to the base plate and deported at a distance above the plate.
  • the decoration 2 can be a decorative element made of a rigid material such as a metal of mother-of-pearl or any other material.
  • the decoration 2 comprises an upper surface 3 intended to be placed facing the watch crystal and a lower surface 4 intended to be placed on the side of the dial.
  • the decoration 2 is held in a fixed position relative to the base plate 1, by means of an assembly elements which has only one point of attachment to the base plate 1, produced by a fixing screw 5 screwed into a threaded hole 6 made in the base plate 1.
  • the other elements of the assembly are visible to figures 2a and 2b .
  • the decoration 2 is supported at two separate support points 10 and 11, respectively by a support bridge 12 and by a support foot 13 ( fig.1 ).
  • the support points 10 and 11 are defined as points situated on vertical lines which pass through the center of the means for fixing the foot 13 and the bridge 12 to the decoration 2, means of which examples will be described in detail below.
  • the support bridge 12 is a part which comprises at least one central portion that is inclined or curved, so that the projection of the support point 10 in the plane of the base plate 1 is away from the fixing screw 5.
  • the support bridge 12 is a rigid part which has the shape of an inclined arm 18 comprising at its proximal end a first plate 14 provided with a through hole 15 and at its distal end a second plate 16 also provided with a through hole 17.
  • the first plate 14 is inserted or, in other words, embedded in a cavity 20 of the base plate 1, at the bottom of which is the threaded hole 6.
  • the fixing screw 5 passes through the hole 15 of the first plate 14.
  • the second plate 16 is preferably parallel to the first plate 14.
  • the second plate 16 is inserted or, in other words, embedded in a cavity 21 made in the lower surface 4 of the decoration 2. Said cavity 21 is in. urvue of a central rod 22 which passes through the hole 17 of the second plate 16.
  • the second plate 16 is fixed to the decoration 2 by gluing or welding.
  • the inclination of the arm 18 is such that the support bridge 12 maintains a fixed distance between the base plate 1 and the lower surface 4 of the decoration 2.
  • the support foot 13 comprises a proximal end maintained at a fixed position in the plane of the base plate 1 and a distal end attached to the lower surface 4 of the decoration 2, at the second support point 11, the projection from the second point 11 in the plane of the base plate 1 being distant from the fixing screw 5 and from the projection of the first point 10.
  • the two projections of the points 10 and 11 and the center of the fixing screw 5 form a triangle.
  • the foot 13 comprises a rod 23 which takes the form of an auxiliary screw 23 screwed at its distal end into a threaded hole 24 provided in the lower surface 4 of the decoration 2, said hole 24 being preferably not opening onto the upper surface 3 of the decoration.
  • the auxiliary screw 23 comprises at its proximal end a screw head 25 which is embedded in a cavity 26 provided in the base plate 1, which immobilizes the rod in the plane of the base plate 1, with a silicone washer 27 installed. between the bottom of the cavity 26 and the screw head 25.
  • the auxiliary screw 23 and the fixing screw 5 are linked laterally to each other by a spacer 30, mounted above the first plate 14 of the support bridge 12.
  • the spacer 30 comprises a first through hole 31 allowing the insertion of the fixing screw 5 from above the spacer 30 and a second through hole 32 next to the first hole 31, the second hole 32 allowing the insertion of the auxiliary screw 23 from below the spacer 30.
  • the screw fixing 5 When the screw fixing 5 is tight, it secures the support bridge 12 and the spacer 30 to the base plate 1 of the dial.
  • the spacer 30 maintains the head 25 of the auxiliary screw 23 in the cavity 26, while providing a lateral connection between the fixing screw 5 and the support foot 13 (in this case the auxiliary screw 23).
  • a rigid tube 33 surrounds a portion of the auxiliary screw 23, the tube 33 being pressed between the lower surface 4 of the decoration 2 and the spacer 30, when the auxiliary screw 23 is tightened.
  • a cavity 35 is provided in the lower surface 4 of the decoration, to receive the end of the tube 33.
  • the threaded hole 24 which receives the end of the auxiliary screw 23 is located at the bottom of the cavity 35.
  • the fixing screw 5 is not covered by the decoration 2. This makes the fixing screw 5 easily accessible for tightening the screw. Forms in which the fixing screw 5 is partially or totally covered by the decoration 2 are nevertheless not excluded from the scope of the invention. In these cases, tightening the fixing screw 5 requires lateral access to the head of the screw 5 by means of pliers or a wrench of small dimensions.
  • the fixing of the decoration 2 to the base plate 1 is carried out by the following steps which begin with the assembly of the various elements.
  • the auxiliary screw 23 is inserted into the hole 32 of the spacer 30 and into the tube 33.
  • the support bridge 12 is attached to the lower surface 4 of the decor 2 at point 11 and the auxiliary screw 23 is screwed into said lower surface. 4 at point 10.
  • the tube 33 guarantees that when the auxiliary screw 23 is tightened, the decoration 2 is kept at a fixed distance from the spacer 30.
  • the decoration 2 provided with the assembly of elements is mounted on the plate base 1 by placing the screw head 25 in the cavity 26 comprising the silicone washer 27 at the bottom of said cavity 26.
  • the silicone washer has a function of absorbing shocks and vibrations, and it makes it possible to compensate for the differences tolerances of the stacking of the elements while ensuring a support on the dial.
  • This assembly makes it possible, by means of the spacer 30, to distribute the shocks and / or vibrations between the fixing screw 5, the support bridge 12, and the support foot 13 with an absorption of vibrations and shocks by the silicone washer 27.
  • This system also makes it possible to distribute the weight of the decoration 2 on these same elements. As a result, in both cases, the load on the fixing screw 5 is reduced and this makes the fixing of a heavy decoration 2 more reliable.
  • the foot 13 can have a different shape and be attached to the decoration 2 and / or to the base plate 1 in an alternative way, for example by welding or gluing. It may be a rod glued or welded to the lower surface 4 of the decoration 2 and provided with a portion of increased section which performs the same function as the screw head 25 of the auxiliary screw 23.
  • the tube 33 can be omitted in the latter case.
  • the silicone washer 27 can be made of another material having shockproof properties. Washer 27 may not be required for certain decor weights and / or materials.
  • the fixing of the support bridge 12 to the lower surface 4 of the decoration can be achieved by means other than by the plate 16.
  • the plate 14 can also be replaced by an equivalent element which allows the fixing by screwing of the support bridge 12 with the spacer 30 to the base plate 1.

Abstract

L'invention concerne un cadran pour une pièce d'horlogerie telle qu'une montre. Le cadran comprend au moins un décor tridimensionnel (2) déporté distant d'une plaque de base (1) qui fait partie du cadran. Le décor est monté sur la plaque de base par un assemblage d'éléments comprenant une vis de fixation (5) vissée dans un trou fileté (6) pourvu dans la plaque de base (1), un pont de soutien (12) comprenant une extrémité proximale solidarisée à la plaque de base (1) par la vis de fixation (5) et une extrémité distale attachée à un premier point (10) de la surface inférieure (4) du décor (2), la projection du premier point (10) dans le plan de la plaque de base étant éloignée de la vis de fixation (5), un pied de support (13) comprenant une extrémité proximale maintenue à une position fixe dans le plan de la plaque de base (1), et une extrémité distale attachée à un deuxième point (11) de la surface inférieure (4) du décor (2), la projection du deuxième point (11) dans le plan de la plaque de base (1) étant éloignée de la vis de fixation (5) et de la projection du premier point (10) et une entretoise (30) qui réalise une liaison latérale entre la vis de fixation (5) et le pied de support (13), l'entretoise (30) étant solidarisée avec le pont de soutien (12) à la plaque de base (1) par la vis de fixation (5).The invention relates to a dial for a timepiece such as a watch. The dial comprises at least one three-dimensional decoration (2) remote from a base plate (1) which is part of the dial. The decor is mounted on the base plate by an assembly of elements comprising a fixing screw (5) screwed into a threaded hole (6) provided in the base plate (1), a support bridge (12) comprising a proximal end secured to the base plate (1) by the fixing screw (5) and a distal end attached to a first point (10) of the lower surface (4) of the decoration (2), the projection of the first point ( 10) in the plane of the base plate being spaced from the fixing screw (5), a support leg (13) comprising a proximal end held at a fixed position in the plane of the base plate (1), and a distal end attached to a second point (11) of the lower surface (4) of the decoration (2), the projection of the second point (11) in the plane of the base plate (1) being remote from the fixing screw (5) and the projection of the first point (10) and a spacer (30) which provides a lateral connection between the fixing screw (5) and the support foot (13), the spacer (30) being secured with the support bridge (12) to the base plate (1) by the fixing screw (5).

Description

Domaine techniqueTechnical area

La présente invention se rapporte au domaine des composants d'habillage en horlogerie, plus particulièrement à des pièces d'horlogerie comprenant un cadran qui supporte un décor tridimensionnel.The present invention relates to the field of watch-making trim components, more particularly to timepieces comprising a dial which supports a three-dimensional decoration.

État de la techniqueState of the art

Pour mettre en valeur les composants d'affichage classiques, certaines pièces d'horlogerie comportent, entre la plaque de base du cadran et la glace, un décor donnant une personnalité particulière à la pièce d'horlogerie. Le décor comporte, selon le cas, un automate, un motif en relief, ou la combinaison de l'un et de l'autre. Les décors peuvent être réalisés avec des matériaux précieux et fragiles, tels que le verre ou la nacre ou avec des matériaux plus lourds tels que le métal.To highlight the classic display components, certain timepieces include, between the base plate of the dial and the crystal, a decoration giving a particular personality to the timepiece. The decoration comprises, as the case may be, an automaton, a relief motif, or a combination of both. The decorations can be made with precious and fragile materials, such as glass or mother-of-pearl or with heavier materials such as metal.

Le document EP-A-3339979 décrit un cadran pourvu d'un décor tridimensionnel, déporté distant de la plaque de base du cadran et fixé à la plaque de base via au moins un pied. Le décor est monté sur ledit pied à l'aide d'un canon agencé pour être chassé sur une portée supérieure du pied et en appui sur un épaulement dudit pied. Ce type de fixation est stable mais pour des pièces de décoration de poids et dimensions importantes, une pluralité de pieds est nécessaire, ce qui augmente la complexité du cadranThe document EP-A-3339979 describes a dial provided with a three-dimensional decoration, offset remote from the base plate of the dial and fixed to the base plate via at least one foot. The decoration is mounted on said foot using a cannon designed to be driven out on an upper range of the foot and resting on a shoulder of said foot. This type of fixing is stable but for decorative pieces of significant weight and dimensions, a plurality of feet is necessary, which increases the complexity of the dial.

Résumé de l'inventionSummary of the invention

La présente invention vise à fournir un cadran pourvu d'un décor tridimensionnel fixé au cadran par un moyen de fixation qui augmente la stabilité mécanique ainsi que la résistance du décor aux chocs et vibrations, par rapport à des solutions existantes.The present invention aims to provide a dial provided with a three-dimensional decoration fixed to the dial by a fixing means which increases the mechanical stability as well as the resistance of the decoration to shocks and vibrations, compared to existing solutions.

Ce but est atteint par un cadran ainsi que par une pièce d'horlogerie selon les revendications annexées.This object is achieved by a dial as well as by a timepiece according to the appended claims.

D'autres caractéristiques et avantages de la présente invention apparaîtront dans la description suivante de modes de réalisation préférés, présentés à titre d'exemple non limitatif en référence aux dessins annexés.Other characteristics and advantages of the present invention will appear in the following description of preferred embodiments, presented by way of non-limiting example with reference to the accompanying drawings.

Brève description des figuresBrief description of the figures

  • La figure 1 représente en perspective une plaque de base d'un cadran, pourvue d'un décor tridimensionnel selon l'invention.The figure 1 shows in perspective a base plate of a dial, provided with a three-dimensional decoration according to the invention.
  • Les figures 2a et 2b représentent deux vues éclatées de l'ensemble des éléments qui permettent la fixation du décor à la plaque de base représentée à la figure 1.The figures 2a and 2b show two exploded views of all the elements which allow the decoration to be attached to the base plate shown figure 1 .
  • La figure 3a est une vue en plan du décor fixé à la plaque de base. Les figures 3b et 3c présentent des vues en coupe selon les sections A-A et B-B indiquées à la figure 3a.The figure 3a is a plan view of the decor attached to the base plate. The figures 3b and 3c show sectional views according to sections AA and BB indicated in figure 3a .
Description détaillée de formes d'exécution de l'inventionDetailed description of embodiments of the invention

A la figure 1 et dans les vues éclatées des figures 2a et 2b, une plaque de base 1 d'un cadran de montre selon une forme d'exécution est représentée. Il s'agit d'une plaque qui ne forme qu'une partie du cadran, celui-ci étant réalisé par assemblage de la plaque 1 avec une ou plusieurs plaques additionnelles. Selon d'autres formes d'exécution, le cadran comprend une seule plaque de base. Un décor tridimensionnel 2 est fixé à la plaque de base et déporté à distance au-dessus de la plaque. Le décor 2 peut être un élément décoratif réalisé dans un matériau rigide tel qu'un métal de la nacre ou tout autre matériau. Le décor 2 comporte une surface supérieure 3 destinée à être disposée en regard de la glace de montre et une surface inférieure 4 destinée à être disposée du côté du cadran.To the figure 1 and in the exploded views of figures 2a and 2b , a base plate 1 of a watch dial according to one embodiment is shown. This is a plate which forms only part of the dial, the latter being produced by assembling the plate 1 with one or more additional plates. According to other embodiments, the dial comprises a single base plate. A three-dimensional decoration 2 is fixed to the base plate and deported at a distance above the plate. The decoration 2 can be a decorative element made of a rigid material such as a metal of mother-of-pearl or any other material. The decoration 2 comprises an upper surface 3 intended to be placed facing the watch crystal and a lower surface 4 intended to be placed on the side of the dial.

De manière caractéristique pour l'invention, le décor 2 est maintenu en position fixe par rapport à la plaque de base 1, au moyen d'un assemblage d'éléments qui ne comporte qu'un seul point d'attachement à la plaque de base 1, réalisé par une vis de fixation 5 vissée dans un trou fileté 6 ménagé dans la plaque de base 1. Les autres éléments de l'assemblage sont visibles aux figures 2a et 2b. On voit que le décor 2 est supporté en deux points de support distincts 10 et 11, respectivement par un pont de soutien 12 et par un pied de support 13 (fig.1). Les points de support 10 et 11 sont définis comme des points situés sur des lignes verticales qui passent par le centre des moyens de fixation du pied 13 et du pont 12 au décor 2, moyens dont des exemples seront décrits en détail ci-après.Characteristically for the invention, the decoration 2 is held in a fixed position relative to the base plate 1, by means of an assembly elements which has only one point of attachment to the base plate 1, produced by a fixing screw 5 screwed into a threaded hole 6 made in the base plate 1. The other elements of the assembly are visible to figures 2a and 2b . It can be seen that the decoration 2 is supported at two separate support points 10 and 11, respectively by a support bridge 12 and by a support foot 13 ( fig.1 ). The support points 10 and 11 are defined as points situated on vertical lines which pass through the center of the means for fixing the foot 13 and the bridge 12 to the decoration 2, means of which examples will be described in detail below.

Le pont de soutien 12 est une pièce qui comprend au moins une portion centrale inclinée ou courbée, de manière à ce que la projection du point de support 10 dans le plan de la plaque de base 1 soit éloignée de la vis de fixation 5. Selon la forme d'exécution représentée dans les figures, le pont de soutien 12 est une pièce rigide qui a la forme d'un bras incliné 18 comportant à son extrémité proximale un premier plateau 14 pourvu d'un trou traversant 15 et à son extrémité distale un deuxième plateau 16 également pourvu d'un trou traversant 17. Le premier plateau 14 est inséré ou, en d'autres mots, noyé dans une cavité 20 de la plaque de base 1, au fond de laquelle se trouve le trou fileté 6. La vis de fixation 5 passe à travers le trou 15 du premier plateau 14. Le deuxième plateau 16 est de préférence parallèle au premier plateau 14. Le deuxième plateau 16 est inséré ou, en d'autres mots, noyé dans une cavité 21 pratiquée dans la surface inférieure 4 du décor 2. Ladite cavité 21 est pourvue d'une tige centrale 22 qui passe à travers le trou 17 du deuxième plateau 16. Le deuxième plateau 16 est fixé au décor 2 par collage ou soudage. L'inclinaison du bras 18 est telle que le pont de soutien 12 maintient une distance fixe entre la plaque de base 1 et la surface inférieure 4 du décor 2.The support bridge 12 is a part which comprises at least one central portion that is inclined or curved, so that the projection of the support point 10 in the plane of the base plate 1 is away from the fixing screw 5. According to the embodiment shown in the figures, the support bridge 12 is a rigid part which has the shape of an inclined arm 18 comprising at its proximal end a first plate 14 provided with a through hole 15 and at its distal end a second plate 16 also provided with a through hole 17. The first plate 14 is inserted or, in other words, embedded in a cavity 20 of the base plate 1, at the bottom of which is the threaded hole 6. The fixing screw 5 passes through the hole 15 of the first plate 14. The second plate 16 is preferably parallel to the first plate 14. The second plate 16 is inserted or, in other words, embedded in a cavity 21 made in the lower surface 4 of the decoration 2. Said cavity 21 is in. urvue of a central rod 22 which passes through the hole 17 of the second plate 16. The second plate 16 is fixed to the decoration 2 by gluing or welding. The inclination of the arm 18 is such that the support bridge 12 maintains a fixed distance between the base plate 1 and the lower surface 4 of the decoration 2.

De manière générale, le pied de support 13 comprend une extrémité proximale maintenue à une position fixe dans le plan de la plaque de base 1 et une extrémité distale attachée à la surface inférieure 4 du décor 2, au deuxième point de support 11, la projection du deuxième point 11 dans le plan de la plaque de base 1 étant éloignée de la vis de fixation 5 et de la projection du premier point 10. De préférence, les deux projections des points 10 et 11 et le centre de la vis de fixation 5 forment un triangle. Dans la forme d'exécution représentée dans les figures, le pied 13 comprend une tige 23 qui prend la forme d'une vis auxiliaire 23 vissée à son extrémité distale dans un trou fileté 24 pourvu dans la surface inférieure 4 du décor 2, ledit trou 24 étant préférentiellement non débouchant sur la surface supérieure 3 du décor. La vis auxiliaire 23 comprend à son extrémité proximale une tête de vis 25 qui est noyée dans une cavité 26 pourvue dans la plaque de base 1, qui immobilise la tige dans le plan de la plaque de base 1, avec une rondelle en silicone 27 installée entre le fond de la cavité 26 et la tête de vis 25.In general, the support foot 13 comprises a proximal end maintained at a fixed position in the plane of the base plate 1 and a distal end attached to the lower surface 4 of the decoration 2, at the second support point 11, the projection from the second point 11 in the plane of the base plate 1 being distant from the fixing screw 5 and from the projection of the first point 10. Preferably, the two projections of the points 10 and 11 and the center of the fixing screw 5 form a triangle. In the embodiment shown in the figures, the foot 13 comprises a rod 23 which takes the form of an auxiliary screw 23 screwed at its distal end into a threaded hole 24 provided in the lower surface 4 of the decoration 2, said hole 24 being preferably not opening onto the upper surface 3 of the decoration. The auxiliary screw 23 comprises at its proximal end a screw head 25 which is embedded in a cavity 26 provided in the base plate 1, which immobilizes the rod in the plane of the base plate 1, with a silicone washer 27 installed. between the bottom of the cavity 26 and the screw head 25.

La vis auxiliaire 23 et la vis de fixation 5 sont liées latéralement entre elles par une entretoise 30, montée au-dessus du premier plateau 14 du pont de soutien 12. L'entretoise 30 comprend un premier trou traversant 31 permettant l'insertion de la vis de fixation 5 par le dessus de l'entretoise 30 et un deuxième trou traversant 32 à côté du premier trou 31, le deuxième trou 32 permettant l'insertion de la vis auxiliaire 23 par le dessous de l'entretoise 30. Lorsque la vis de fixation 5 est serrée, elle solidarise le pont de support 12 et l'entretoise 30 à la plaque de base 1 du cadran. En même temps, l'entretoise 30 maintient la tête 25 de la vis auxiliaire 23 dans la cavité 26, tout en réalisant une liaison latérale entre la vis de fixation 5 et le pied de support 13 (dans ce cas la vis auxiliaire 23). Un tube rigide 33 entoure une portion de la vis auxiliaire 23, le tube 33 étant pressé entre la surface inférieure 4 du décor 2 et l'entretoise 30, lorsque la vis auxiliaire 23 est serrée. Une cavité 35 est pourvue dans la surface inférieure 4 du décor, pour recevoir l'extrémité du tube 33. Le trou fileté 24 qui reçoit l'extrémité de la vis auxiliaire 23 se trouve au fond de la cavité 35.The auxiliary screw 23 and the fixing screw 5 are linked laterally to each other by a spacer 30, mounted above the first plate 14 of the support bridge 12. The spacer 30 comprises a first through hole 31 allowing the insertion of the fixing screw 5 from above the spacer 30 and a second through hole 32 next to the first hole 31, the second hole 32 allowing the insertion of the auxiliary screw 23 from below the spacer 30. When the screw fixing 5 is tight, it secures the support bridge 12 and the spacer 30 to the base plate 1 of the dial. At the same time, the spacer 30 maintains the head 25 of the auxiliary screw 23 in the cavity 26, while providing a lateral connection between the fixing screw 5 and the support foot 13 (in this case the auxiliary screw 23). A rigid tube 33 surrounds a portion of the auxiliary screw 23, the tube 33 being pressed between the lower surface 4 of the decoration 2 and the spacer 30, when the auxiliary screw 23 is tightened. A cavity 35 is provided in the lower surface 4 of the decoration, to receive the end of the tube 33. The threaded hole 24 which receives the end of the auxiliary screw 23 is located at the bottom of the cavity 35.

Aux figures 3a-3c, les éléments décrits ci-dessus sont visualisés dans des vues en coupe. Dans la forme d'exécution représentée dans les figures, la vis de fixation 5 n'est pas couverte par le décor 2. Ceci rend la vis de fixation 5 facilement accessible pour serrer la vis. Des formes dans lesquelles la vis de fixation 5 est partiellement ou totalement couverte par le décor 2 ne sont néanmoins pas exclues de la portée de l'invention. Dans ces cas, le serrage de la vis de fixation 5 requiert un accès latéral à la tête de la vis 5 par une pince ou clé de petites dimensions.To the figures 3a-3c , the elements described above are visualized in section views. In the embodiment shown in the figures, the fixing screw 5 is not covered by the decoration 2. This makes the fixing screw 5 easily accessible for tightening the screw. Forms in which the fixing screw 5 is partially or totally covered by the decoration 2 are nevertheless not excluded from the scope of the invention. In these cases, tightening the fixing screw 5 requires lateral access to the head of the screw 5 by means of pliers or a wrench of small dimensions.

La solidarisation du décor 2 à la plaque de base 1 est effectuée par les étapes suivantes qui commencent par l'assemblage des différents éléments. La vis auxiliaire 23 est insérée dans le trou 32 de l'entretoise 30 et dans le tube 33. Le pont de soutien 12 est attaché à la surface inférieure 4 du décor 2 au point 11 et la vis auxiliaire 23 est vissée dans ladite surface inférieure 4 au point 10. Le tube 33 garantit que lorsque la vis auxiliaire 23 est serrée, le décor 2 est maintenu à une distance fixe de l'entretoise 30. Puis le décor 2 pourvu de l'assemblage d'éléments est monté sur la plaque de base 1 par placement de la tête de vis 25 dans la cavité 26 comprenant la rondelle en silicone 27 au fond de ladite cavité 26. La rondelle en silicone a une fonction d'absorption de chocs et vibrations, et elle permet de compenser les différences de tolérances de l'empilement des éléments en assurant un appui sur le cadran. Finalement, la vis de fixation 5 est insérée dans les trous 31 et 15 et serrée par vissage dans le trou fileté 6 de la plaque de base 1.The fixing of the decoration 2 to the base plate 1 is carried out by the following steps which begin with the assembly of the various elements. The auxiliary screw 23 is inserted into the hole 32 of the spacer 30 and into the tube 33. The support bridge 12 is attached to the lower surface 4 of the decor 2 at point 11 and the auxiliary screw 23 is screwed into said lower surface. 4 at point 10. The tube 33 guarantees that when the auxiliary screw 23 is tightened, the decoration 2 is kept at a fixed distance from the spacer 30. Then the decoration 2 provided with the assembly of elements is mounted on the plate base 1 by placing the screw head 25 in the cavity 26 comprising the silicone washer 27 at the bottom of said cavity 26. The silicone washer has a function of absorbing shocks and vibrations, and it makes it possible to compensate for the differences tolerances of the stacking of the elements while ensuring a support on the dial. Finally, the fixing screw 5 is inserted into the holes 31 and 15 and tightened by screwing into the threaded hole 6 of the base plate 1.

Cet assemblage permet, par l'intermédiaire de l'entretoise 30, de répartir les chocs et/ou vibrations entre la vis de fixation 5, le pont de soutien 12, et le pied de support 13 avec une absorption des vibrations et chocs par la rondelle en silicone 27. Ce système permet aussi de répartir le poids du décor 2 sur ces mêmes éléments. De ce fait, dans les deux cas, la charge sur la vis de fixation 5 est diminuée et cela fiabilise la fixation d'un décor 2 lourd.This assembly makes it possible, by means of the spacer 30, to distribute the shocks and / or vibrations between the fixing screw 5, the support bridge 12, and the support foot 13 with an absorption of vibrations and shocks by the silicone washer 27. This system also makes it possible to distribute the weight of the decoration 2 on these same elements. As a result, in both cases, the load on the fixing screw 5 is reduced and this makes the fixing of a heavy decoration 2 more reliable.

Plusieurs détails techniques décrits pour la forme d'exécution représentée dans les figures ne sont pas limitatifs pour la portée de l'invention. Par exemple, le pied 13 peut avoir une forme différente et être attaché au décor 2 et/ou à la plaque de base 1 d'une manière alternative, par exemple par soudage ou collage. Il peut s'agir d'une tige collée ou soudée à la surface inférieure 4 du décor 2 et pourvue d'une portion à section augmentée qui remplit la même fonction que la tête de vis 25 de la vis auxiliaire 23. Le tube 33 peut être supprimé dans le dernier cas.La rondelle en silicone 27 peut être fabriquée en un autre matériau ayant des propriétés antichocs. La rondelle 27 peut ne pas être requise pour certains poids et/ou matériaux du décor. La fixation du pont de soutien 12 à la surface inférieure 4 du décor peut être réalisée par des moyens autres que par le plateau 16. Le plateau 14 peut également être remplacé par un élément équivalent qui permet la solidarisation par vissage du pont de soutien 12 avec l'entretoise 30 à la plaque de base 1.Several technical details described for the embodiment shown in the figures are not limiting for the scope of the invention. For example, the foot 13 can have a different shape and be attached to the decoration 2 and / or to the base plate 1 in an alternative way, for example by welding or gluing. It may be a rod glued or welded to the lower surface 4 of the decoration 2 and provided with a portion of increased section which performs the same function as the screw head 25 of the auxiliary screw 23. The tube 33 can be omitted in the latter case. The silicone washer 27 can be made of another material having shockproof properties. Washer 27 may not be required for certain decor weights and / or materials. The fixing of the support bridge 12 to the lower surface 4 of the decoration can be achieved by means other than by the plate 16. The plate 14 can also be replaced by an equivalent element which allows the fixing by screwing of the support bridge 12 with the spacer 30 to the base plate 1.

Claims (15)

Un cadran pour une pièce d'horlogerie, le cadran comportant une plaque de base (1) pourvue d'au moins un décor tridimensionnel (2) déporté distant de la plaque de base (1), le décor comprenant une surface inférieure (4) disposée du côté de la plaque de base (1) et une surface supérieure (3) opposée à la surface inférieure (4), caractérisé en ce que le décor (2) est monté sur la plaque de base (1) par un assemblage d'éléments comprenant : - Une vis de fixation (5) vissée dans un trou fileté (6) ménagé dans la plaque de base (1), - Un pont de soutien (12) comprenant une extrémité proximale solidarisée à la plaque de base (1) par la vis de fixation (5) et une extrémité distale attachée à un premier point (10) de la surface inférieure (4) du décor (2), la projection du premier point (10) dans le plan de la plaque de base (1) étant éloignée de la vis de fixation (5), - Un pied de support (13) comprenant une extrémité proximale maintenue à une position fixe dans le plan de la plaque de base (1) et une extrémité distale attachée à un deuxième point (11) de la surface inférieure (4) du décor (2), la projection du deuxième point (11) dans le plan de la plaque de base (1) étant éloignée de la vis de fixation (5) et de la projection du premier point (10), - Une entretoise (30) qui réalise une liaison latérale entre la vis de fixation (5) et le pied de support (13), l'entretoise (30) étant solidarisée avec le pont de soutien (12) à la plaque de base (1) par la vis de fixation (5). A dial for a timepiece, the dial comprising a base plate (1) provided with at least one three-dimensional decoration (2) remote from the base plate (1), the decoration comprising a lower surface (4) arranged on the side of the base plate (1) and an upper surface (3) opposite the lower surface (4), characterized in that the decoration (2) is mounted on the base plate (1) by an assembly of 'elements comprising: - A fixing screw (5) screwed into a threaded hole (6) made in the base plate (1), - A support bridge (12) comprising a proximal end secured to the base plate (1) by the fixing screw (5) and a distal end attached to a first point (10) of the lower surface (4) of the decoration (2), the projection of the first point (10) in the plane of the base plate (1) being away from the fixing screw (5), - A support foot (13) comprising a proximal end maintained at a fixed position in the plane of the base plate (1) and a distal end attached to a second point (11) of the lower surface (4) of the decoration ( 2), the projection of the second point (11) in the plane of the base plate (1) being remote from the fixing screw (5) and the projection of the first point (10), - A spacer (30) which provides a lateral connection between the fixing screw (5) and the support foot (13), the spacer (30) being secured with the support bridge (12) to the base plate ( 1) by the fixing screw (5). Cadran selon la revendication 1, dans lequel les positions de la vis de fixation (5) et des projections des premier et deuxième points (10,11) forment un triangle dans le plan de la plaque de base (1).Dial according to Claim 1, in which the positions of the fixing screw (5) and of the projections of the first and second points (10,11) form a triangle in the plane of the base plate (1). Cadran selon la revendication 1 ou 2, dans lequel le pied de support (13) comprend une tige (23) dont l'extrémité distale est attachée à la surface inférieure (4) du décor (2), et dans lequel l'entretoise (30) est pourvue d'un trou traversant (32) qui permet le passage de la tige (23).A dial according to claim 1 or 2, wherein the support leg (13) comprises a rod (23) whose distal end is attached to the lower surface (4) of the decoration (2), and in which the spacer (30) is provided with a through hole (32) which allows the passage of the rod (23). Cadran selon la revendication 3, dans lequel l'extrémité proximale de la tige (23) est formée d'une portion à section augmentée (25) qui est noyée dans une cavité (26) pratiquée dans la plaque de base (1), de manière à maintenir la portion à section augmentée (25) à une position fixe dans le plan de la plaque de base (1).Dial according to Claim 3, in which the proximal end of the rod (23) is formed of a portion with increased section (25) which is embedded in a cavity (26) made in the base plate (1), of so as to maintain the increased section portion (25) at a fixed position in the plane of the base plate (1). Cadran selon la revendication 4, dans lequel l'entretoise (30) maintient la portion à section augmentée (25) dans la cavité (26).Dial according to Claim 4, in which the spacer (30) maintains the increased section portion (25) in the cavity (26). Cadran selon la revendication 4 ou 5, dans lequel l'assemblage comprend en outre une pièce (27) réalisée dans un matériau antichoc entre la portion à section augmentée (25) et le fond de la cavité (26).Dial according to claim 4 or 5, in which the assembly further comprises a part (27) made of an impact-resistant material between the increased section portion (25) and the bottom of the cavity (26). Cadran selon l'une quelconque des revendications 3 à 6, dans lequel la tige (23) est essentiellement perpendiculaire par rapport au plan de la plaque de base (1).A dial according to any one of claims 3 to 6, in which the rod (23) is substantially perpendicular to the plane of the base plate (1). Cadran selon la revendication 7, dans lequel la tige est une vis auxiliaire (23) dont la portion à section augmentée forme une tête de vis (25), et dans lequel le deuxième point (11) de la surface inférieure (4) du décor (2) est pourvu d'un trou fileté (24) dans lequel l'extrémité distale de la vis auxiliaire (23) est vissée.Dial according to Claim 7, in which the shank is an auxiliary screw (23) the portion of which has an increased section forms a screw head (25), and in which the second point (11) of the lower surface (4) of the decoration (2) is provided with a threaded hole (24) into which the distal end of the auxiliary screw (23) is screwed. Cadran selon la revendication 8, dans lequel le pied de support (13) comprend en outre un tube (33) qui entoure une portion de la vis auxiliaire (23) et dans lequel le tube (33) est serré entre l'entretoise (30) et la surface inférieure (4) du décor (2) par la force exercée par l'engagement de la vis auxiliaire (23) dans le trou fileté (24) pourvu dans la surface inférieure (4) du décor (2).A dial according to claim 8, wherein the support leg (13) further comprises a tube (33) which surrounds a portion of the auxiliary screw (23) and wherein the tube (33) is clamped between the spacer (30). ) and the lower surface (4) of the decoration (2) by the force exerted by the engagement of the auxiliary screw (23) in the threaded hole (24) provided in the lower surface (4) of the decoration (2). Cadran selon l'une quelconque des revendications précédentes, dans lequel le pont de soutien (12) comporte un bras (18) incliné par rapport au plan de la plaque de base (1).Dial according to any one of the preceding claims, in which the support bridge (12) has an arm (18) inclined with respect to the plane of the base plate (1). Cadran selon l'une quelconque des revendications précédentes, dans lequel l'extrémité proximale du pont de soutien (12) comprend un premier plateau (14) noyé dans une première cavité (20) pratiquée dans la plaque de base (1), le trou fileté (6) ménagé dans la plaque de base (1) se trouvant au fond de ladite première cavité (20) dans laquelle le premier plateau (14) est noyé.A dial according to any preceding claim, wherein the proximal end of the support bridge (12) comprises a first plate (14) embedded in a first cavity (20) made in the base plate (1), the threaded hole (6) made in the base plate (1) being at the bottom of said first cavity (20) in which the first plate (14) is embedded. Cadran selon l'une quelconque des revendications précédentes, dans lequel l'extrémité distale du pont de soutien (12) comprend un deuxième plateau (16) noyé dans une deuxième cavité (21) pratiquée dans la surface inférieure (4) du décor (2).Dial according to any one of the preceding claims, in which the distal end of the support bridge (12) comprises a second plate (16) embedded in a second cavity (21) formed in the lower surface (4) of the decoration (2) ). Cadran selon l'une quelconque des revendications précédentes, dans lequel l'extrémité distale du pont de soutien (12) est attachée à la surface inférieure (4) du décor (2) par soudage ou collage.Dial according to any one of the preceding claims, in which the distal end of the support bridge (12) is attached to the lower surface (4) of the decoration (2) by welding or gluing. Pièce d'horlogerie comprenant un cadran selon l'une quelconque des revendications précédentes.Timepiece comprising a dial according to any one of the preceding claims. Pièce d'horlogerie selon la revendication 14, dans laquelle la pièce d'horlogerie est une montre.Timepiece according to claim 14, wherein the timepiece is a watch.
EP19163395.7A 2019-03-18 2019-03-18 Dial for a timepiece provided with a three-dimensional decoration Active EP3712712B1 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
EP19163395.7A EP3712712B1 (en) 2019-03-18 2019-03-18 Dial for a timepiece provided with a three-dimensional decoration
JP2020022232A JP6888134B2 (en) 2019-03-18 2020-02-13 Timekeeper table with three-dimensional decoration
CN202010182367.5A CN111708266B (en) 2019-03-18 2020-03-16 Timepiece dial provided with a three-dimensional decoration
US16/819,369 US11644796B2 (en) 2019-03-18 2020-03-16 Timepiece dial provided with a three-dimensional decoration

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP19163395.7A EP3712712B1 (en) 2019-03-18 2019-03-18 Dial for a timepiece provided with a three-dimensional decoration

Publications (2)

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EP3712712A1 true EP3712712A1 (en) 2020-09-23
EP3712712B1 EP3712712B1 (en) 2021-10-20

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US (1) US11644796B2 (en)
EP (1) EP3712712B1 (en)
JP (1) JP6888134B2 (en)
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EP3712712B1 (en) * 2019-03-18 2021-10-20 Montres Jaquet Droz SA Dial for a timepiece provided with a three-dimensional decoration
EP3872577A1 (en) * 2020-02-26 2021-09-01 ETA SA Manufacture Horlogère Suisse Mechanical timepiece bearing equipped with a damping part

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Also Published As

Publication number Publication date
US20200301368A1 (en) 2020-09-24
JP2020153971A (en) 2020-09-24
CN111708266A (en) 2020-09-25
CN111708266B (en) 2021-08-13
US11644796B2 (en) 2023-05-09
JP6888134B2 (en) 2021-06-16
EP3712712B1 (en) 2021-10-20

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