EP3526645B1 - Method for manufacturing a raised pattern provided with a fastener - Google Patents

Method for manufacturing a raised pattern provided with a fastener Download PDF

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Publication number
EP3526645B1
EP3526645B1 EP17768161.6A EP17768161A EP3526645B1 EP 3526645 B1 EP3526645 B1 EP 3526645B1 EP 17768161 A EP17768161 A EP 17768161A EP 3526645 B1 EP3526645 B1 EP 3526645B1
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EP
European Patent Office
Prior art keywords
envelope
decoration
fastener
substrate
forms
Prior art date
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Application number
EP17768161.6A
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German (de)
French (fr)
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EP3526645A1 (en
Inventor
Pierry Vuille
Yves Winkler
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Swatch Group Research and Development SA
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Swatch Group Research and Development SA
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Publication of EP3526645A1 publication Critical patent/EP3526645A1/en
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    • 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
    • G04B19/12—Selection of materials for dials or graduations markings
    • 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
    • G04B19/04—Hands; Discs with a single mark or the like
    • G04B19/042—Construction and manufacture of the hands; arrangements for increasing reading accuracy
    • 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
    • G04D—APPARATUS OR TOOLS SPECIALLY DESIGNED FOR MAKING OR MAINTAINING CLOCKS OR WATCHES
    • G04D3/00—Watchmakers' or watch-repairers' machines or tools for working materials
    • G04D3/0002—Watchmakers' or watch-repairers' machines or tools for working materials for mechanical working other than with a lathe
    • G04D3/0043—Watchmakers' or watch-repairers' machines or tools for working materials for mechanical working other than with a lathe for components of the time-indicating mechanisms
    • G04D3/0051—Watchmakers' or watch-repairers' machines or tools for working materials for mechanical working other than with a lathe for components of the time-indicating mechanisms for time markers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B44—DECORATIVE ARTS
    • B44C—PRODUCING DECORATIVE EFFECTS; MOSAICS; TARSIA WORK; PAPERHANGING
    • B44C1/00—Processes, not specifically provided for elsewhere, for producing decorative surface effects
    • B44C1/28—Uniting ornamental elements on a support, e.g. mosaics
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B44—DECORATIVE ARTS
    • B44C—PRODUCING DECORATIVE EFFECTS; MOSAICS; TARSIA WORK; PAPERHANGING
    • B44C5/00—Processes for producing special ornamental bodies

Definitions

  • the invention relates to a relief decoration provided with a fastener allowing it to be fixed to a part.
  • the document CH 201 862 A discloses, for example, a method of manufacturing a decoration provided with at least one fastener and comprising the steps of forming an envelope of material, the outer surface of which forms the visible part in relief of the decoration, and in forming said at least a clip.
  • the aim of the present invention is to overcome all or part of the drawbacks mentioned above by proposing an automatable manufacturing process which uses less material, makes possible a greater variety of materials while guaranteeing colors and finish which are suitable for reducing the rate of scum.
  • the process allows the manufacture of a relief decoration provided with at least one fastener whose envelope forms a "skin" of material, that is to say a predetermined thickness of material, the rest of the material. volume being hollowed out of said material, which makes it possible to very appreciably reduce the cost of the material and the mass of the decoration.
  • the material used for said at least one fastener can be, advantageously according to the invention, completely independent of the material used for the envelope. It is thus possible, by way of example, to manufacture a fastener in a more usual metal such as brass or in a polymer material allowing varied shaping.
  • the process comprising fewer steps, it can be automated, that is to say that the manufacture can be partially or totally carried out using automatic devices in order to lower the cost of the decorations.
  • the present process comprises a first step a) intended to form an envelope of material, the external surface S E of which forms the visible part in relief of the decoration.
  • the decoration comprises an envelope in relief which forms a "skin" of material, that is to say a predetermined thickness of material, the rest of the volume being hollowed out of said material, which makes it possible to reduce very substantially the cost of the material and the mass of the decor. It is thus possible, for example, to manufacture a wall lamp whose visible surface in relief is formed from a precious metal, such as gold, while limiting its intrinsic cost by not using the material to precious metal base only for the thickness of the envelope and not the entire decor.
  • the first step a) 2 comprises a first phase a1) intended to form an imprint 3 of said decoration in a substrate 1 as visible at the figure 1A .
  • the substrate 1 can be of various kinds, for example based on silicon, ceramic or metal.
  • the layer of material 7 can, for example, be deposited by galvanic growth, by physical vapor deposition (known by the English abbreviation "PVD”), by chemical vapor deposition (known by the English abbreviation “CVD” ), by atomic layer deposition (known by the English abbreviation "ALD”) or by any other additive method.
  • the second phase a2) can comprise a preparation of the substrate 1 and then, only afterwards, the deposition of the material 7 of the envelope 9.
  • the preparation of the substrate 1 is intended to make possible the adhesion of the material 7 on the substrate 1.
  • the preparation can thus consist in making at least a part of the upper surface of the substrate 1 rougher and / or depositing a layer of bonding on at least part of the upper surface of substrate 1 and / or depositing a technical layer on at least part of the upper surface of substrate 1 allowing the deposition of material 7 as illustrated in figure 1C .
  • the layer 7 can be deposited on all or part of the upper surface of the substrate 1 and at least so as to cover without necessarily completely filling the imprint 3 with the future decoration 15.
  • the example of figures 1B to 1D proposes to deposit an electrically conductive layer 5 on the entire upper surface of the substrate 1 by physical vapor deposition, to deposit the layer 7 by galvanic growth from the layer 5, that is to say on the entire upper surface of the substrate 1 then to leave the layer 7 only in the imprint 3 in order to form the envelope 9.
  • This example makes it possible to make several different or identical envelopes 9 on the same substrate 1, that is to say to manufacture in series of envelopes 9.
  • step a) comprises a first phase a4) intended to be provided with a sheet of the material intended to form the envelope 9 of the decoration 15.
  • the step could then continue with the second phase a5) intended to deform the sheet of material so as to form said envelope of material.
  • several different or identical envelopes 9 could be produced on the same sheet of material, that is to say mass-produced envelopes 9.
  • the sheet could also be advantageously used as a support.
  • a sheet of amorphous metal alloy based on a precious metal such as based on palladium or platinum
  • amorphous metal alloy is easy to deform when it is heated between its glass transition temperature and its crystallization temperature.
  • it advantageously comprises a very high elastic limit making it possible to be particularly indicated for an application to a covering part.
  • the second phase a5) could, for example, be obtained by stamping (also known under the English term “stamping”) or by blow molding (also known under the English terms " blow molding ”).
  • step a) comprises a first phase a7) intended to form a mold of said decoration such as for example by means of photolithography in order to form several levels of photosensitive resin structured according to the pattern of the future decor.
  • This third embodiment could be a positive alternative of the first embodiment, that is to say instead of creating an imprint 3 destructively, it is formed additively, for example by photolithography.
  • step a) comprises a second phase a8) intended to cover the mold with material in order to form one directly or indirectly the envelope 9 of material.
  • the mold is covered with the layer 7 in a manner similar to the first embodiment, or the mold is filled to form a massive blank which is subsequently hollowed out to indirectly obtain the envelope.
  • the method makes it possible to form an outer surface S E of envelope 9 which will have a color and a finish which will depend on the deposition method, the material deposited and the roughness. of the substrate 1, of the sheet or of the mold, in a very reproducible manner.
  • the method continues with the second step b) intended to mount, against the internal surface Si of the casing 9, at least one fastener 13 arranged to fix the decoration 15 .
  • the material used for said at least one fastener 13 can be completely independent of the material used for the casing 9. It is thus possible, by way of example, to manufacture a fastener 13 in a more metal. usual such as brass or polymer material allowing varied shaping without modifying either the color or the finish of the outer surface S E of the casing 9.
  • step b) comprises a first phase b1) intended to form said at least one fastener 13 then a second phase b2) intended to secure said at least one fastener against the internal surface Si of the casing 9 formed during step a) as illustrated in figure 2B .
  • Phase b1) can, advantageously according to the invention, be carried out according to any type of preferred process. Indeed, the clip (or clips) provided not being dependent (s) on the material chosen for the casing 9, no restriction as to the material of said at least one clip 13 or as to the method of manufacturing said at least one fastener 13, is not to be deplored.
  • the figure 2B has a clip in the form of a prismatic volume with a circular section.
  • several fasteners 13 could alternately be formed during phase b1) in one piece or not.
  • Phase b2) can, advantageously according to the invention, be carried out according to several types of preferred process.
  • several types of connection can be envisaged.
  • the example of figures 2B to 2D proposes to deposit a securing material 11, such as glue, against the internal surface Si of the casing 9 and then adjusting said at least one fastener 13 via the layer of securing material 11 against the internal surface Si of the envelope 9.
  • a securing material 11 such as glue
  • step a Note that this advantage is retained even for the other two embodiments of step a), that is to say respectively by using the same sheet or the same mold.
  • step b) may alternatively comprise a phase b3) intended to fill the internal surface Si of the casing 9 with a material, forming said at least a fastener 13.
  • a phase b3) intended to fill the internal surface Si of the casing 9 with a material, forming said at least a fastener 13.
  • said at least one fastener 13 can be obtained by using a die over the casing 9 making it possible to give a predetermined shape for injection.
  • a decoration 15 is obtained formed by an envelope 9 in relief formed for example based on gold, the outer surface S E of which determines the visible part of the decoration 15. It is apparent that a recess 17 can be provided in order to receive, for example, a luminescent substance such as superluminova or create a particular aesthetic form.
  • the decoration 15 further comprises a fastener 13 secured against the internal surface Si of the casing 9 using an adhesive 11.
  • the fastener 13, once fixed, for example by riveting in the hole of a dial , will be completely hidden and only the external surface S E will remain visible without being able to differentiate the decoration 15 from a traditional wall light as regards its color and its finish.
  • the present invention is not limited to the example illustrated but is susceptible of various variants and modifications which will appear to those skilled in the art.
  • the envelope 9 could be removed from the substrate 1, from the sheet or from the mold before performing step b).
  • the internal surface S I of the casing 9 could also have a shape, such as a groove or a rib, intended to improve the adhesion and / or the positioning of said at least one fastener.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Adornments (AREA)

Description

Domaine de l'inventionField of the invention

L'invention se rapporte à un décor en relief muni d'une attache permettant d'être fixé à une pièce.The invention relates to a relief decoration provided with a fastener allowing it to be fixed to a part.

Arrière-plan de l'inventionBackground of the invention

Il est connu de fabriquer des heures index sous forme d'appliques, c'est-à-dire des pièces massives qui sont usinées puis rapportées sur le cadran par exemple par rivetage des pieds de chaque applique dans le corps du cadranIt is known to manufacture hour markers in the form of appliques, that is to say massive parts which are machined and then attached to the dial, for example by riveting the feet of each applique in the body of the dial.

Le document CH 201 862 A divulgue, par exemple, un procédé de fabrication d'un décor muni d'au moins une attache et comportant les étapes consistant à former une enveloppe de matière dont la surface externe forme la partie visible en relief du décor, et à former ladite au moins une attache.The document CH 201 862 A discloses, for example, a method of manufacturing a decoration provided with at least one fastener and comprising the steps of forming an envelope of material, the outer surface of which forms the visible part in relief of the decoration, and in forming said at least a clip.

La fabrication nécessairement à l'unité de telles appliques est compliquée notamment à cause des difficultés de mise en couleur et de finition des faces visibles.The manufacture, necessarily individually, of such appliques is complicated in particular because of the difficulties in coloring and finishing the visible faces.

Résumé de l'inventionSummary of the invention

Le but de la présente invention est de pallier tout ou partie les inconvénients cités précédemment en proposant un procédé de fabrication automatisable qui utilise moins de matière, rend possible une plus grande variété de matériaux tout en garantissant des couleurs et finition propres à diminuer le taux de rebut.The aim of the present invention is to overcome all or part of the drawbacks mentioned above by proposing an automatable manufacturing process which uses less material, makes possible a greater variety of materials while guaranteeing colors and finish which are suitable for reducing the rate of scum.

A cet effet, l'invention se rapporte à un procédé de fabrication d'un décor muni d'une attache comportant les étapes suivantes :

  1. a) former une enveloppe de matière dont la surface externe forme la partie visible en relief du décor , ladite étape comportant les phases suivantes :
    • a1 ) former une empreinte (3) dudit décor dans un substrat (1);
    • a2) recouvrir ladite empreinte d'une couche de matière (7) ;
  2. b) former ladite au moins une attache ;
  3. c) solidariser ladite au moins une attache directement contre la surface interne (Si) de l'enveloppe (9) du décor (15) formé lors de l'étape a) avant un remplissage du volume de la cavité définie par l'enveloppe.
To this end, the invention relates to a method of manufacturing a decoration provided with a fastener comprising the following steps:
  1. a) forming an envelope of material, the outer surface of which forms the visible part in relief of the decoration, said step comprising the following phases:
    • a1) forming an imprint (3) of said decoration in a substrate (1);
    • a2) covering said imprint with a layer of material (7);
  2. b) forming said at least one fastener;
  3. c) securing said at least one fastener directly against the internal surface (Si) of the envelope (9) of the decoration (15) formed during step a) before filling the volume of the cavity defined by the envelope.

On comprend donc que le procédé autorise la fabrication d'un décor en relief muni d'au moins une attache dont l'enveloppe forme une « peau » de matière, c'est-à-dire une épaisseur prédéterminée de matière, le reste du volume étant évidé de ladite matière, ce qui permet de diminuer très sensiblement le coût de la matière et la masse du décor.It is therefore understood that the process allows the manufacture of a relief decoration provided with at least one fastener whose envelope forms a "skin" of material, that is to say a predetermined thickness of material, the rest of the material. volume being hollowed out of said material, which makes it possible to very appreciably reduce the cost of the material and the mass of the decoration.

Il est ainsi possible, à titre d'exemple, de fabriquer une applique dont la surface visible en relief est formée à base d'un métal précieux, comme de l'or, tout en limitant son cout intrinsèque en n'utilisant la matière à base de métal précieux que pour l'épaisseur de l'enveloppe et non l'ensemble du décor.It is thus possible, for example, to manufacture a wall lamp whose visible surface in relief is formed from a precious metal, such as gold, while limiting its intrinsic cost by not using the material to precious metal base only for the thickness of the envelope and not the entire decor.

De plus, le matériau utilisé pour ladite au moins une attache peut être, avantageusement selon l'invention, totalement indépendant de la matière utilisée pour l'enveloppe. Il est ainsi possible, à titre d'exemple, de fabriquer une attache en un métal plus usuel comme du laiton ou en matériau polymère permettant une mise en forme variée.In addition, the material used for said at least one fastener can be, advantageously according to the invention, completely independent of the material used for the envelope. It is thus possible, by way of example, to manufacture a fastener in a more usual metal such as brass or in a polymer material allowing varied shaping.

Enfin, le procédé comportant moins d'étapes, il est automatisable, c'est-à-dire que la fabrication peut être partiellement ou totalement réalisée à l'aide d'automates afin de baisser le cout des décors.Finally, the process comprising fewer steps, it can be automated, that is to say that the manufacture can be partially or totally carried out using automatic devices in order to lower the cost of the decorations.

Conformément à d'autres variantes avantageuses de l'invention :

  • l'étape a) comporte , en outre, la phase : retirer le substrat afin d'obtenir une enveloppe de matière dont la surface externe forme la partie visible en relief dudit décor ;
  • l'étape a) comporte les phases a4) : se munir d'une feuille de matière puis a5) : déformer la feuille de matière de façon à former une enveloppe de matière et, éventuellement, a6) : retirer ladite enveloppe du reste de la feuille afin d'obtenir une enveloppe dont la surface externe forme la partie visible en relief dudit décor ;
  • l'étape a) comporte les phases a7) : former un moule dudit décor puis a8) : recouvrir le moule de matière afin de former une enveloppe de matière et, éventuellement, a9) : retirer le moule afin d'obtenir une enveloppe dont la surface externe forme la partie visible en relief dudit décor ;
  • l'étape b) comporte les phases b1) : former ladite au moins une attache puis b2) : solidariser ladite au moins une attache contre la surface interne de l'enveloppe du décor formé lors de l'étape a) ;
  • l'étape b) comporte la phase b3) : remplir d'un matériau la surface interne de l'enveloppe du décor formé lors de l'étape a), en formant ladite au moins une attache ;
  • la matière de l'enveloppe comporte un métal précieux ;
  • le décor forme tout ou partie d'un réhaut, d'un cadran, d'une applique ou d'une aiguille de pièce d'horlogerie.
In accordance with other advantageous variants of the invention:
  • step a) further comprises the phase: removing the substrate in order to obtain an envelope of material, the outer surface of which forms the visible part in relief of said decoration;
  • step a) comprises phases a4): provide a sheet of material then a5): deform the sheet of material so as to form an envelope of material and, optionally, a6): remove said envelope from the rest of the sheet in order to obtain an envelope, the outer surface of which forms the visible part in relief of said decoration;
  • step a) comprises phases a7): forming a mold of said decoration then a8): covering the mold with material in order to form an envelope of material and, optionally, a9): removing the mold in order to obtain a envelope, the outer surface of which forms the visible part in relief of said decoration;
  • step b) comprises phases b1): forming said at least one fastener then b2): securing said at least one fastener against the internal surface of the envelope of the decoration formed during step a);
  • step b) comprises phase b3): filling the internal surface of the envelope with the decoration formed during step a) with a material, forming said at least one fastener;
  • the material of the envelope comprises a precious metal;
  • the decoration forms all or part of a flange, a dial, an applique or a timepiece needle.

Description sommaire des dessinsBrief description of the drawings

D'autres particularités et avantages ressortiront clairement de la description qui en est faite ci-après, à titre indicatif et nullement limitatif, en référence aux dessins annexés, dans lesquels :

  • la figure 1 est une représentation d'une étape a) selon l'invention ;
  • la figure 2 est une représentation d'une étape b) selon l'invention ;
  • les figures 3 et 4 sont des représentations d'un décor selon l'invention.
Other features and advantages will emerge clearly from the description which is given below, by way of indication and in no way limiting, with reference to the accompanying drawings, in which:
  • the figure 1 is a representation of a step a) according to the invention;
  • the figure 2 is a representation of a step b) according to the invention;
  • the figures 3 and 4 are representations of a decoration according to the invention.

Description détaillée des modes de réalisation préférésDetailed description of the preferred embodiments

L'invention se rapporte à un procédé de fabrication d'un décor en relief muni d'une attache pouvant, par exemple, former tout ou partie d'un réhaut, d'un cadran, d'une applique ou d'une aiguille d'une pièce d'horlogerie. En effet, pour des raisons esthétiques et de tenue dans le temps, ces décors sont généralement réalisés à partir de matériaux peu sensibles à l'atmosphère oxydante de l'air. Il est assez fréquent pour les pièces d'horlogerie haut de gamme que les heures index, le cadran ou les aiguilles soient formés à partir de métal précieux, comme de l'or, ce qui rend très couteux l'habillage des pièces d'horlogerie.The invention relates to a method of manufacturing a relief decoration provided with a fastener which can, for example, form all or part of a flange, a dial, an applique or a needle. 'a timepiece. Indeed, for aesthetic and durability reasons, these decorations are generally made from materials that are not very sensitive to the oxidizing atmosphere of the air. It is quite common for high-end timepieces that the hour markers, dial or hands are formed from precious metal, such as gold, which makes it very expensive to dress the timepieces. .

Dans le but de rendre plus abordables les décors même à base de métal précieux, le présent procédé comporte une première étape a) destinée à former une enveloppe de matière dont la surface externe SE forme la partie visible en relief du décor.With the aim of making the decorations even based on precious metal more affordable, the present process comprises a first step a) intended to form an envelope of material, the external surface S E of which forms the visible part in relief of the decoration.

On comprend donc que le décor comporte une enveloppe en relief qui forme une « peau » de matière, c'est-à-dire une épaisseur prédéterminée de matière, le reste du volume étant évidé de ladite matière, ce qui permet de diminuer très sensiblement le coût de la matière et la masse du décor. Il est ainsi possible, à titre d'exemple, de fabriquer une applique dont la surface visible en relief est formée à base d'un métal précieux, comme de l'or, tout en limitant son cout intrinsèque en n'utilisant la matière à base de métal précieux que pour l'épaisseur de l'enveloppe et non l'ensemble du décor.It is therefore understood that the decoration comprises an envelope in relief which forms a "skin" of material, that is to say a predetermined thickness of material, the rest of the volume being hollowed out of said material, which makes it possible to reduce very substantially the cost of the material and the mass of the decor. It is thus possible, for example, to manufacture a wall lamp whose visible surface in relief is formed from a precious metal, such as gold, while limiting its intrinsic cost by not using the material to precious metal base only for the thickness of the envelope and not the entire decor.

Selon invention, la première étape a) 2. comporte une première phase a1) destinée à former une empreinte 3 dudit décor dans un substrat 1 comme visible à la figure 1A. Le substrat 1 peut être de natures diverses comme par exemple à base de silicium, de céramique ou de métal.According to the invention, the first step a) 2 comprises a first phase a1) intended to form an imprint 3 of said decoration in a substrate 1 as visible at the figure 1A . The substrate 1 can be of various kinds, for example based on silicon, ceramic or metal.

L'étape a), selon l'invention, se poursuit avec une deuxième phase a2) destinée à recouvrir l'empreinte 3 d'une couche de matière 7 destinée à former l'enveloppe 9 du futur décor. La couche de matière 7 peut, par exemple, être déposée par croissance galvanique, par dépôt physique en phase vapeur (connu sous l'abréviation anglaise « P.V.D. »), par dépôt chimique en phase vapeur (connu sous l'abréviation anglaise « C.V.D. »), par dépôt en couche atomique (connu sous l'abréviation anglaise « A.L.D. ») ou par toute autre méthode additive.Step a), according to the invention, continues with a second phase a2) intended to cover the imprint 3 with a layer of material 7 intended to form the envelope 9 of the future decoration. The layer of material 7 can, for example, be deposited by galvanic growth, by physical vapor deposition (known by the English abbreviation "PVD"), by chemical vapor deposition (known by the English abbreviation "CVD" ), by atomic layer deposition (known by the English abbreviation "ALD") or by any other additive method.

Comme illustré aux figure 1B et 1C suivant la nature de l'enveloppe 9 désirée, celle du substrat 1 et le procédé de déposition, la deuxième phase a2) peut comporter une préparation du substrat 1 puis, seulement après, le dépôt de la matière 7 de l'enveloppe 9.As shown in figure 1B and 1C depending on the nature of the envelope 9 desired, that of the substrate 1 and the deposition process, the second phase a2) can comprise a preparation of the substrate 1 and then, only afterwards, the deposition of the material 7 of the envelope 9.

Comme illustré à la figure 1B, la préparation du substrat 1 est destinée à rendre possible l'adhérence de la matière 7 sur le substrat 1. La préparation peut ainsi consister à rendre plus rugueuse au moins une partie de la surface supérieure du substrat 1 et/ou déposer une couche de liaison sur au moins une partie de la surface supérieure du substrat 1 et/ou déposer une couche technique sur au moins une partie de la surface supérieure du substrat 1 permettant le dépôt de la matière 7 comme illustré à la figure 1C.As shown in figure 1B , the preparation of the substrate 1 is intended to make possible the adhesion of the material 7 on the substrate 1. The preparation can thus consist in making at least a part of the upper surface of the substrate 1 rougher and / or depositing a layer of bonding on at least part of the upper surface of substrate 1 and / or depositing a technical layer on at least part of the upper surface of substrate 1 allowing the deposition of material 7 as illustrated in figure 1C .

Bien entendu, suivant la méthode de déposition, la couche 7 peut être déposée sur tout ou partie de la surface supérieure du substrat 1 et au minimum de manière à recouvrir sans forcément totalement remplir l'empreinte 3 du futur décor 15.Of course, depending on the deposition method, the layer 7 can be deposited on all or part of the upper surface of the substrate 1 and at least so as to cover without necessarily completely filling the imprint 3 with the future decoration 15.

De manière non limitative, l'exemple des figures 1B à 1D propose de déposer une couche électriquement conductrice 5 sur toute la surface supérieure du substrat 1 par dépôt physique en phase vapeur, de déposer la couche 7 par croissance galvanique à partir de la couche 5, c'est-à-dire sur toute la surface supérieure du substrat 1 puis de ne laisser la couche 7 que dans l'empreinte 3 afin de former l'enveloppe 9. Cet exemple permet de réaliser plusieurs enveloppes 9 différentes ou identiques sur le même substrat 1, c'est-à-dire fabriquer en série des enveloppes 9.In a non-limiting manner, the example of figures 1B to 1D proposes to deposit an electrically conductive layer 5 on the entire upper surface of the substrate 1 by physical vapor deposition, to deposit the layer 7 by galvanic growth from the layer 5, that is to say on the entire upper surface of the substrate 1 then to leave the layer 7 only in the imprint 3 in order to form the envelope 9. This example makes it possible to make several different or identical envelopes 9 on the same substrate 1, that is to say to manufacture in series of envelopes 9.

Bien entendu, comme expliqué ci-dessus, d'autres types de dépôt peuvent être mis en oeuvre que la croissance galvanique. De plus ; alternativement, il est également possible de déposer directement et uniquement dans chaque empreinte 3, la couche 7, c'est-à-dire passer directement de la figure 1A à la figure 1D.Of course, as explained above, other types of deposit can be used than galvanic growth. Furthermore ; alternatively, it is also possible to deposit directly and only in each cavity 3, the layer 7, that is to say to pass directly from the figure 1A to the figure 1D .

A titre d'exemple, il est ainsi possible d'utiliser une couche sacrificielle ne recouvrant pas l'empreinte 3 qui, après le dépôt de la couche 7, serait retirée en ne laissant la couche 7 que dans l'empreinte 3. Cette technique est connue sous les termes anglais « lift-off ». Une autre technique alternative peut être l'utilisation d'un masque pochoir sur la trajectoire de la matière à déposer parfois appelé en anglais « stencil lithography ».By way of example, it is thus possible to use a sacrificial layer not covering the impression 3 which, after the deposition of the layer 7, would be removed leaving the layer 7 only in the impression 3. This technique is known by the English terms "lift-off". Another alternative technique can be the use of a stencil mask on the trajectory of the material to be deposited, sometimes called “stencil lithography”.

Selon un deuxième mode de réalisation, l'étape a) comporte une première phase a4) destinée à se munir d'une feuille de la matière destinée à former l'enveloppe 9 du décor 15. L'étape pourrait alors se poursuivre avec la deuxième phase a5) destinée à déformer la feuille de matière de façon à former ladite enveloppe de matière. De manière similaire au premier mode de réalisation, plusieurs enveloppes 9 différentes ou identiques pourraient être réalisées sur une même feuille de matière, c'est-à-dire fabriquer en série des enveloppes 9. La feuille pourrait également être avantageusement utilisée comme support.According to a second embodiment, step a) comprises a first phase a4) intended to be provided with a sheet of the material intended to form the envelope 9 of the decoration 15. The step could then continue with the second phase a5) intended to deform the sheet of material so as to form said envelope of material. Similarly to the first embodiment, several different or identical envelopes 9 could be produced on the same sheet of material, that is to say mass-produced envelopes 9. The sheet could also be advantageously used as a support.

A titre d'exemple, une feuille en alliage métallique amorphe à base de métal précieux, comme à base de palladium ou de platine, peut être utilisée. En effet, un tel alliage métallique amorphe est facile à déformer lorsqu'il est chauffé entre sa température de transition vitreuse et sa température de cristallisation. De plus, il comporte avantageusement une très haute limite élastique permettant d'être particulièrement indiqué pour une application à une pièce d'habillage.For example, a sheet of amorphous metal alloy based on a precious metal, such as based on palladium or platinum, can be used. Indeed, such an amorphous metal alloy is easy to deform when it is heated between its glass transition temperature and its crystallization temperature. In addition, it advantageously comprises a very high elastic limit making it possible to be particularly indicated for an application to a covering part.

Ainsi, dans le cas d'un alliage métallique amorphe, la deuxième phase a5) pourrait, par exemple, être obtenue par matriçage (également connu sous le terme anglais « stamping ») ou par moulage par soufflage (également connu sous les termes anglais « blow molding »).Thus, in the case of an amorphous metal alloy, the second phase a5) could, for example, be obtained by stamping (also known under the English term "stamping") or by blow molding (also known under the English terms " blow molding ”).

Enfin, selon un troisième mode de réalisation, l'étape a) comporte une première phase a7) destinée à former un moule dudit décor comme par exemple à l'aide d'une photolithographie afin de former plusieurs niveaux de résine photosensible structurée selon le motif du futur décor. Ce troisième mode de réalisation pourrait être une alternative en positif du premier mode de réalisation, c'est-à-dire au lieu de créer une empreinte 3 de manière destructive, elle est formée de manière additive par exemple par photolithographie.Finally, according to a third embodiment, step a) comprises a first phase a7) intended to form a mold of said decoration such as for example by means of photolithography in order to form several levels of photosensitive resin structured according to the pattern of the future decor. This third embodiment could be a positive alternative of the first embodiment, that is to say instead of creating an imprint 3 destructively, it is formed additively, for example by photolithography.

Selon le troisième mode de réalisation, l'étape a) comporte une deuxième phase a8) destinée à recouvrir le moule de matière afin de former une directement ou indirectement l'enveloppe 9 de matière. En effet, suivant la forme du décor 15, soit le moule est recouvert de la couche 7 de manière similaire au premier mode de réalisation, soit le moule est rempli pour former une ébauche massive qui est par la suite creusée pour obtenir indirectement l'enveloppe 9.According to the third embodiment, step a) comprises a second phase a8) intended to cover the mold with material in order to form one directly or indirectly the envelope 9 of material. In fact, depending on the shape of the decoration 15, either the mold is covered with the layer 7 in a manner similar to the first embodiment, or the mold is filled to form a massive blank which is subsequently hollowed out to indirectly obtain the envelope. 9.

Quel que soit le mode de réalisation de la première étape a), le procédé permet de former une surface externe SE d'enveloppe 9 qui aura une couleur et une finition qui dépendront de la méthode de déposition, du matériel déposé et de la rugosité du substrat 1, de la feuille ou du moule, de manière très reproductible.Whatever the embodiment of the first step a), the method makes it possible to form an outer surface S E of envelope 9 which will have a color and a finish which will depend on the deposition method, the material deposited and the roughness. of the substrate 1, of the sheet or of the mold, in a very reproducible manner.

Quel que soit le mode de réalisation de la première étape a), le procédé se poursuit avec la deuxième étape b) destinée à monter, contre la surface interne Si de l'enveloppe 9, au moins une attache 13 agencée pour fixer le décor 15.Whatever the embodiment of the first step a), the method continues with the second step b) intended to mount, against the internal surface Si of the casing 9, at least one fastener 13 arranged to fix the decoration 15 .

Avantageusement selon l'invention, le matériau utilisé pour ladite au moins une attache 13 peut être totalement indépendant de la matière utilisée pour l'enveloppe 9. Il est ainsi possible, à titre d'exemple, de fabriquer une attache 13 en un métal plus usuel comme du laiton ou en matériau polymère permettant une mise en forme variée sans modifier ni la couleur et ni la finition de la surface externe SE de l'enveloppe 9.Advantageously according to the invention, the material used for said at least one fastener 13 can be completely independent of the material used for the casing 9. It is thus possible, by way of example, to manufacture a fastener 13 in a more metal. usual such as brass or polymer material allowing varied shaping without modifying either the color or the finish of the outer surface S E of the casing 9.

Selon un premier mode de réalisation, l'étape b) comporte une première phase b1) destinée à former ladite au moins une attache 13 puis une deuxième phase b2) destinée à solidariser ladite au moins une attache contre la surface interne Si de l'enveloppe 9 formée lors de l'étape a) comme illustrée à la figure 2B.According to a first embodiment, step b) comprises a first phase b1) intended to form said at least one fastener 13 then a second phase b2) intended to secure said at least one fastener against the internal surface Si of the casing 9 formed during step a) as illustrated in figure 2B .

La phase b1) peut, avantageusement selon l'invention, être réalisée selon tout type de procédé préféré. En effet, l'attache (ou les attaches) prévue(s) n'étant pas dépendante(s) de la matière choisie pour l'enveloppe 9, aucune restriction quant au matériau de ladite au moins une attache 13 ou quant à la méthode de fabrication de ladite au moins une attache 13, n'est à déplorer.Phase b1) can, advantageously according to the invention, be carried out according to any type of preferred process. Indeed, the clip (or clips) provided not being dependent (s) on the material chosen for the casing 9, no restriction as to the material of said at least one clip 13 or as to the method of manufacturing said at least one fastener 13, is not to be deplored.

A titre d'exemple, la figure 2B présente une attache sous forme d'un volume prismatique à section circulaire. Bien entendu, plusieurs attaches 13 pourraient être alternativement formées lors de la phase b1) de manière monobloc ou non. En effet, on peut imaginer à la manière d'une agrafe que deux attaches 13 soient raccordées à l'aide d'une base en formant un élément monobloc ou que plusieurs attaches 13 indépendantes soient formées.For example, the figure 2B has a clip in the form of a prismatic volume with a circular section. Of course, several fasteners 13 could alternately be formed during phase b1) in one piece or not. Indeed, one can imagine in the manner of a clip that two fasteners 13 are connected with the aid of a base forming a single-piece element or that several independent fasteners 13 are formed.

La phase b2) peut, avantageusement selon l'invention, être réalisée selon plusieurs types de procédé préféré. En effet, suivant l'attache (ou les attaches) prévue(s) et l'enveloppe 9 prévues, il peut être envisagé plusieurs types de solidarisation. De manière non limitative, il peut être envisagé un collage, un soudage ou un brasage de chaque attache 13 contre la surface interne Si de l'enveloppe 9.Phase b2) can, advantageously according to the invention, be carried out according to several types of preferred process. In fact, depending on the attachment (or attachments) provided and the envelope 9 provided, several types of connection can be envisaged. In a nonlimiting manner, it is possible to envisage gluing, welding or brazing each clip 13 against the internal surface Si of the casing 9.

De manière non limitative, l'exemple des figures 2B à 2D propose de déposer un matériau de solidarisation 11, comme de la colle, contre la surface interne Si de l'enveloppe 9 puis d'ajuster ladite au moins une attache 13 via la couche de matériau de solidarisation 11 contre la surface interne Si de l'enveloppe 9. Cet exemple permet de réaliser plusieurs décors 15 différents ou identiques sur le même substrat 1, c'est-à-dire, une fois libérés du substrat 1, fabriquer en série des décors 15.In a non-limiting manner, the example of figures 2B to 2D proposes to deposit a securing material 11, such as glue, against the internal surface Si of the casing 9 and then adjusting said at least one fastener 13 via the layer of securing material 11 against the internal surface Si of the envelope 9. This example makes it possible to produce several different or identical decorations 15 on the same substrate 1, that is to say, once released from the substrate 1, to manufacture decorations 15 in series.

On remarque que cet avantage est conservé même pour les deux autres modes de réalisation de l'étape a), c'est-à-dire respectivement en utilisant une même feuille ou un même moule.Note that this advantage is retained even for the other two embodiments of step a), that is to say respectively by using the same sheet or the same mold.

Selon un mode de réalisation ne faisant pas partie de l'invention telle que revendiquée, l'étape b) peut comporter alternativement une phase b3) destinée à remplir d'un matériau la surface interne Si de l'enveloppe 9 en formant ladite au moins une attache 13. En effet, il peut être imaginé, par exemple, l'injection d'un matériau polymère adhérant contre la surface interne Si de l'enveloppe 9 et dont la (ou les) carotte(s) d'injection permet(tent) de former ladite au moins une attache 13. Bien entendu, ladite au moins une attache 13 peut être obtenue par l'utilisation d'une matrice par-dessus l'enveloppe 9 permettant de donner une forme prédéterminée à l'injection.According to an embodiment not forming part of the invention as claimed, step b) may alternatively comprise a phase b3) intended to fill the internal surface Si of the casing 9 with a material, forming said at least a fastener 13. Indeed, it can be imagined, for example, the injection of a polymer material adhering against the internal surface Si of the casing 9 and of which the (or them) injection core (s) make it possible to form said at least one fastener 13. Of course, said at least one fastener 13 can be obtained by using a die over the casing 9 making it possible to give a predetermined shape for injection.

On remarque donc que le procédé comporte moins d'étapes que la fabrication d'une applique traditionnelle. Il est également immédiat que l'utilisation respectivement du substrat 1, de la feuille ou du moule, rend le procédé automatisable, c'est-à-dire que la fabrication peut être partiellement ou totalement réalisée à l'aide d'automates afin de baisser le cout des décors 15.We therefore notice that the process has fewer steps than the manufacture of a traditional wall light. It is also immediate that the use respectively of the substrate 1, of the sheet or of the mold, makes the process automatable, that is to say that the manufacture can be partially or totally carried out using automatons in order to lower the cost of decorations 15.

De manière non limitative, dans l'exemple des figures 2C, 3 et 4, on obtient un décor 15 formé par une enveloppe 9 en relief formée par exemple à base d'or dont la surface externe SE détermine la partie visible du décor 15. Il est apparent qu'un évidement 17 peut être prévu afin de recevoir, par exemple, une substance luminescente comme du superluminova ou créer une forme esthétique particulière.In a non-limiting manner, in the example of figures 2C, 3 and 4 , a decoration 15 is obtained formed by an envelope 9 in relief formed for example based on gold, the outer surface S E of which determines the visible part of the decoration 15. It is apparent that a recess 17 can be provided in order to receive, for example, a luminescent substance such as superluminova or create a particular aesthetic form.

Le décor 15 comporte en outre une attache 13 solidarisée contre la surface interne Si de l'enveloppe 9 à l'aide d'une colle 11. L'attache 13, une fois fixée, par exemple par rivetage dans le trou d'un cadran, sera totalement masquée et seule la surface externe SE restera visible sans pouvoir différentier le décor 15 d'une applique traditionnelle quant à sa couleur et sa finition.The decoration 15 further comprises a fastener 13 secured against the internal surface Si of the casing 9 using an adhesive 11. The fastener 13, once fixed, for example by riveting in the hole of a dial , will be completely hidden and only the external surface S E will remain visible without being able to differentiate the decoration 15 from a traditional wall light as regards its color and its finish.

Bien entendu, la présente invention ne se limite pas à l'exemple illustré mais est susceptible de diverses variantes et modifications qui apparaîtront à l'homme de l'art. En particulier, à la fin de l'étape a), l'enveloppe 9 pourrait être retirée du substrat 1, de la feuille ou le moule avant d'effectuer l'étape b).Of course, the present invention is not limited to the example illustrated but is susceptible of various variants and modifications which will appear to those skilled in the art. In particular, at the end of step a), the envelope 9 could be removed from the substrate 1, from the sheet or from the mold before performing step b).

De plus, la surface interne SI de l'enveloppe 9 pourrait également comporter une forme, telle qu'une rainure ou une nervure, destinée à améliorer l'adhérence et/ou le positionnement de ladite au moins une attache.In addition, the internal surface S I of the casing 9 could also have a shape, such as a groove or a rib, intended to improve the adhesion and / or the positioning of said at least one fastener.

Enfin, dans le cas d'un recouvrement comme illustré à la figure 1C, il peut également être envisagé de retirer le surplus de matière 7 non pas lors de l'étape a) mais à la fin de l'étape b) sans perdre les avantages de l'invention.Finally, in the case of a recovery as illustrated in figure 1C , it can also be envisaged to remove the excess material 7 not during step a) but at the end of step b) without losing the advantages of the invention.

Claims (8)

  1. Method of fabricating a decoration (15) provided with at least one attachment (13) including the following steps:
    a) forming an envelope (9) of material (7) the external surface (SE) of which forms the visible embossed part of the decoration (15), said step comprising the following phases:
    a1) forming an imprint (3) of said decoration in a substrate (1);
    a2) covering said imprint with a layer of material (7).
    b) forming said at least one attachment;
    c) fastening said at least one attachment directly against the internal surface (SI) of the envelope (9) of the decoration (15) formed during step a) before filling the volume of the cavity defined by the envelope.
  2. Method according to the preceding claim, characterized in that step a) further includes the following final phase:
    a3) removing the substrate (1) in order to obtain an envelope (9) of material (7) the external surface (SE) of which forms the visible embossed part of said decoration.
  3. Method according to Claim 1, characterized in that step a) includes alternately to the phases a1), a2) the following phases:
    a4) obtaining a sheet of material (7);
    a5) deforming the sheet of material (7) in order to form an envelope (9) of material (7).
  4. Method according to the preceding claim, characterized in that step a) further includes the following final phase:
    a6) removing said envelope from the rest of the sheet in order to obtain an envelope (9) the external surface (SE) of which forms the visible embossed part of said decoration.
  5. Method according to Claim 1, characterized in that step a) includes the following phases alternative to the phases a1), a2):
    a7) forming a mould for said decoration;
    a8) covering the mould with material (7) in order to form an envelope (9) of material (9).
  6. Method according to the preceding claim, characterized in that step a) further includes the following final phase:
    a9) removing the mould in order to obtain an envelope (9) the external surface (SE) of which forms the visible embossed part of said decoration.
  7. Method according to any one of the preceding claims, characterized in that the material (7) of the envelope (9) includes a precious metal.
  8. Method according to any one of the preceding claims, characterized in that the decoration (15) forms all or part of a bezel, a dial, an applique or a hand of a timepiece.
EP17768161.6A 2016-10-13 2017-09-22 Method for manufacturing a raised pattern provided with a fastener Active EP3526645B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP16193773.5A EP3309626A1 (en) 2016-10-13 2016-10-13 Method for manufacturing a raised pattern provided with a fastener
PCT/EP2017/074084 WO2018069023A1 (en) 2016-10-13 2017-09-22 Method for the production of a relief decoration equipped with an attachment

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EP3526645B1 true EP3526645B1 (en) 2021-02-17

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EP (2) EP3309626A1 (en)
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EP3712713A1 (en) * 2019-03-19 2020-09-23 Rolex Sa Clock dial device
EP3989010A1 (en) * 2020-10-21 2022-04-27 Rolex Sa Applique for a timepiece dial and manufacturing process of such an applique

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CH260124A (en) * 1947-06-09 1949-02-28 Stern Freres Sa Process for manufacturing metal signs for dials, and tools for implementing this process.
US3410699A (en) * 1964-10-21 1968-11-12 Peters Leo Method of and means for embossment and packaging of cold butter
JPS60235086A (en) * 1984-05-08 1985-11-21 Citizen Watch Co Ltd Display piece for clock dial
JPH06342086A (en) * 1993-06-02 1994-12-13 Mitsubishi Materials Corp Time piece frame and its production method
CH690029A5 (en) * 1995-10-11 2000-03-31 Bloesch W Ag Fusible substrate coating, especially for producing liquid- and gas-tight brazed joints in the watch and jewelry industries, comprises layers of different elements and-or alloys which form an eutectic melt
JP2005201789A (en) * 2004-01-16 2005-07-28 Seiko Epson Corp Molding method for member, time piece facing component, and decorative accessories
JP2006029976A (en) * 2004-07-15 2006-02-02 Seiko Epson Corp Time indicating member, its manufacturing method, and timepiece
CN100429068C (en) * 2006-05-26 2008-10-29 李鉴明 Process for making disposable milk bottle inner tube
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EP3309626A1 (en) 2018-04-18
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WO2018069023A1 (en) 2018-04-19
CN109804322A (en) 2019-05-24
CN109804322B (en) 2021-06-15
JP2019530874A (en) 2019-10-24
EP3526645A1 (en) 2019-08-21
US11077704B2 (en) 2021-08-03

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