EP3879354A1 - Masse de remontage oscillante munie d'un element decoratif pour mouvement automatique de pièce d'horlogerie - Google Patents

Masse de remontage oscillante munie d'un element decoratif pour mouvement automatique de pièce d'horlogerie Download PDF

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Publication number
EP3879354A1
EP3879354A1 EP20161893.1A EP20161893A EP3879354A1 EP 3879354 A1 EP3879354 A1 EP 3879354A1 EP 20161893 A EP20161893 A EP 20161893A EP 3879354 A1 EP3879354 A1 EP 3879354A1
Authority
EP
European Patent Office
Prior art keywords
mass
decorative element
winding
main element
movement
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.)
Pending
Application number
EP20161893.1A
Other languages
German (de)
English (en)
French (fr)
Inventor
Loïc OBERSON
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.)
Swatch Group Research and Development SA
Original Assignee
Swatch Group Research and Development 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 Swatch Group Research and Development SA filed Critical Swatch Group Research and Development SA
Priority to EP20161893.1A priority Critical patent/EP3879354A1/fr
Priority to US17/161,008 priority patent/US11927921B2/en
Priority to JP2021020605A priority patent/JP7143459B2/ja
Priority to CN202110251350.5A priority patent/CN113448235B/zh
Publication of EP3879354A1 publication Critical patent/EP3879354A1/fr
Pending legal-status Critical Current

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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
    • G04B5/00—Automatic winding up
    • G04B5/02—Automatic winding up by self-winding caused by the movement of the watch
    • G04B5/16—Construction of the weights
    • G04B5/165—Weights consisting of 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
    • G04B5/00—Automatic winding up
    • G04B5/02—Automatic winding up by self-winding caused by the movement of the watch
    • G04B5/16—Construction of the weights
    • 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
    • G04B5/00—Automatic winding up
    • G04B5/02—Automatic winding up by self-winding caused by the movement of the watch

Definitions

  • the present invention relates to an oscillating winding mass provided with a decorative element for a movement of a timepiece with automatic movement. More particularly, the invention relates to such a winding mass intended to equip a wristwatch comprising a transparent back.
  • Wristwatches are already known which have cases with a transparent bottom to allow their movement to be observed. However, when these watches have a self-winding movement, the oscillating winding mass hides a movement part.
  • the aesthetics of such oscillating masses are not always pleasant, even if it is possible to engrave the material forming the oscillating weight to make it more attractive. It is possible, for example, to engrave a decorative element, such as a logo representing the brand of the watch. But this logo is generally not visible enough for the result to be aesthetically convincing. In addition, a simple coloring of the logo is not enough to make the mass more aesthetic, besides that the color can be degrade over time. In addition, the observation of the movement is always truncated by the presence of the oscillating winding weight, which prevents comfortable observation of the movement.
  • the object of the present invention is to remedy the drawbacks of the prior art by proposing an oscillating winding mass for a timepiece comprising a particular decorative element.
  • the decorative element makes it possible in particular to distinguish the movement.
  • the invention relates to an oscillating winding mass of a movement of a timepiece, said oscillating winding mass being intended to be mounted to rotate on an axis of the movement, said mass comprising an element. principal giving the general shape of the oscillating winding mass, a heavy part allowing the oscillation of the mass in response to the movement of the timepiece and to the force of gravity.
  • the invention is remarkable in that it comprises a decorative element, for example a logo or an acronym, the decorative element being fixed to the main element, the decorative element being held by at least one end imbricated in the material. of the main element.
  • a decorative element for example a logo or an acronym
  • the winding mass has a more attractive aesthetic rendering than a conventional winding mass known from the state of the art.
  • the decorative element which may represent a logo or an acronym of a brand, gives more cachet to the winding mass and therefore to the timepiece.
  • the main element comprising two superimposed parts assembled together, the decorative element is held by the end between the superimposed parts of the main element.
  • the main element is in one piece.
  • the main element comprises a through opening, the decorative element being arranged at least in part in said opening.
  • the main element comprises amorphous or at least partially amorphous metal, preferably entirely.
  • the decorative element comprises amorphous or at least partially amorphous metal, preferably entirely.
  • the decorative element comprises metallic foam.
  • the heavy part comprises amorphous or at least partially amorphous metal of high density, preferably in its entirety.
  • the heavy part is an insert molded into the main element.
  • the main element has the shape of a ring.
  • the decorative element comprises a second end held between the two parts.
  • the decorative element at least partially crosses the ring.
  • the main element comprises a fastener for fixing to the movement.
  • the invention also relates to a timepiece comprising a case formed of a middle part closed by a crystal and an at least partially transparent back and in which is housed a self-winding timepiece movement, said movement being equipped with an oscillating winding mass according to the invention.
  • the invention also relates to a method of manufacturing an oscillating winding mass, said oscillating winding mass being intended to be mounted for rotation on an axis of the movement, said mass comprising a main element giving the general shape of the mass. of oscillating winding, a heavy part allowing the oscillation of the mass in response to the movement of the timepiece and to the force of gravity, characterized in that the method comprises a first step of manufacturing a main element of the mass in two superimposable parts, a second step of manufacturing a decorative element, for example a logo or an acronym, and a third step of assembling the main element and the decorative element, the decorative element being maintained between the two parts by at least one end.
  • the method comprises a step in which a metallic foam is formed to obtain the decorative element, the decorative element being made of amorphous or at least partially amorphous metal.
  • the method comprises a forming step in which a plate is formed metallic provided with an open pattern to obtain the decorative element, the decorative element being made of amorphous or at least partially amorphous metal.
  • the two parts of the main element and the decorative element are assembled by a hot thermoforming process of the “hot-forming” type, or by overmolding.
  • FIG. 1 a first embodiment of an oscillating winding mass according to the invention, designated by the general reference 1.
  • This mass 1 is intended conventionally to equip the automatic winding movement of a timepiece, the part comprising in particular a case formed of a middle part closed by a crystal and an at least partially transparent back to make the movement visible from the back, and which are not shown in the figures.
  • the winding mass 1 comprises a main element 2 giving the general shape of the oscillating winding mass 1.
  • the main element 2 is formed of a ring.
  • the main element 2 has a through opening 9 formed by the ring.
  • the main element 2 comprises a first material, preferably all of it.
  • the first material is amorphous metal or at least partially amorphous metal, because it makes it possible to use a hot thermoforming process of the “hot-forming” type.
  • the main element 2 is connected to the movement mechanism 5 by an axis around which it can rotate. To this end, it comprises a fastening clip 6 on the movement, which is for example formed of a small ring arranged in the opening 9 of the ring of the main element 2.
  • the clip 6 is thus composed of the same material as the main element and is arranged in the same plane. Thanks to the clip 6, the winding mass can perform a circular movement around the axis, when it oscillates.
  • a part of the winding mass forms a heavy part allowing the oscillation of the mass in response to the movement of the timepiece and to the force of gravity.
  • the heavy part comprises a second material with a density greater than 10, preferably greater than or equal to 20.
  • the third material comprises tungsten or a tungsten alloy with a density substantially equal to 20, preferably entirely.
  • the heavy part is for example an insert molded into the main element.
  • the main element 2 comprises two superimposed parts 4, 5 assembled together.
  • the upper part 4 and the lower part 5 here have identical shapes. In the split position, the ring is cut in the plane.
  • each part 4, 5 has a substantially identical flat ring shape, the thickness of which is less than the total thickness of the ring, preferably substantially equal to half.
  • the winding mass 1 comprises a decorative element 3, for example a logo or an acronym, the decorative element 3 being fixed to the main element 2 of the mass 1.
  • the decorative element 3 is here a logo in anchor shape having a substantially straight segment 7 and a curved segment 8, the straight segment 7 being connected to the curved segment 8 in its middle, on the inner side of the curvature.
  • the decorative element 3 is held by at least one end 11, 12 between the superimposed parts of the main element.
  • the ends 11, 12 are nested in the material of the main element 2.
  • the decorative element is held by the end 11 of the straight segment 7 and by the outer side 12 of the curved segment 8.
  • the assembly is carried out for example by an overmolding process, or by a hot thermoforming process of the “hot-forming” type.
  • the ends 11, 12 of the decorative element 3 are embedded in the material of the main element 2.
  • the decorative element 3 is flat to allow the two parts 4, 5 to be assembled more easily.
  • the decorative element 3 here has a length greater than the diameter of the opening 9 in order to be able to be fixed to the main element by its two ends 11, 12. Thus, the decorative element 3 at least partially passes through the ring.
  • the decorative element 3 preferably has a width less than that of the opening 9 to facilitate vision through the winding mass.
  • the decorative element 3 is formed from a third material, preferably in its entirety.
  • the third material is for example amorphous metal or partially amorphous metal.
  • the production method comprises a first step of manufacturing a main element 2 of the mass 1 in two superimposable parts 4, 5.
  • the method comprises a second step of manufacturing a decorative element, for example a logo or an acronym.
  • the material of the decorative element 3 is structured to allow the mechanism to be seen through the decorative element 3.
  • the decorative element 3 is perforated according to a predefined pattern.
  • the decorative element 3 is formed in a sheet by laser cutting.
  • the openwork pattern is drawn on the sheet metal by the laser.
  • the sheet is then cut to obtain the overall shape of the decorative element 3.
  • stamping or machining can be used to form the decorative element.
  • a second embodiment consists in making the decorative element 3 in a metal foam.
  • a mold is formed, for example in salt, the mold being a negative of the foam that is to be produced.
  • Amorphous metal is used, which is infiltrated or injected into the mold.
  • the foam obtained is then sectioned into plates, which are cut to the dimensions of the decorative element.
  • the two parts 4, 5 of the main element 2 and the decorative element 3 are assembled by a “hot-forming” type hot thermoforming process.
  • the decorative element 3 is arranged between the two parts 4, 5 of the main element 2, then the assembly is heated to mold the two parts on the decorative element 3.
  • This type of production can be done thanks to the material in amorphous metal of the main element 2 and / or of the decorative element 3.
  • the decorative element is held between the two parts by at least one end, here two.
  • the decorative element can be overmolded on the main element, or else the main element can be overmolded on the decorative element.
  • a main element formed of the same material that is to say which is in one piece.
  • the invention also relates to a second embodiment of an automatic winding mass, not shown in the figures.
  • the winding mass comprises a main element formed from the same material, and a decorative element identical to that of the first embodiment.
  • the winding mass is similar to that of the first embodiment, except that the main element is in one piece and not in two parts.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electric Clocks (AREA)
  • Toys (AREA)
EP20161893.1A 2020-03-09 2020-03-09 Masse de remontage oscillante munie d'un element decoratif pour mouvement automatique de pièce d'horlogerie Pending EP3879354A1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
EP20161893.1A EP3879354A1 (fr) 2020-03-09 2020-03-09 Masse de remontage oscillante munie d'un element decoratif pour mouvement automatique de pièce d'horlogerie
US17/161,008 US11927921B2 (en) 2020-03-09 2021-01-28 Oscillating winding mass provided with a decorative element for automatic timepiece movement
JP2021020605A JP7143459B2 (ja) 2020-03-09 2021-02-12 自動式計時器用ムーブメントのための装飾性要素を備える振動巻き錘
CN202110251350.5A CN113448235B (zh) 2020-03-09 2021-03-08 用于自动钟表机芯的带装饰元件的振荡上条质量块

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP20161893.1A EP3879354A1 (fr) 2020-03-09 2020-03-09 Masse de remontage oscillante munie d'un element decoratif pour mouvement automatique de pièce d'horlogerie

Publications (1)

Publication Number Publication Date
EP3879354A1 true EP3879354A1 (fr) 2021-09-15

Family

ID=69845839

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20161893.1A Pending EP3879354A1 (fr) 2020-03-09 2020-03-09 Masse de remontage oscillante munie d'un element decoratif pour mouvement automatique de pièce d'horlogerie

Country Status (4)

Country Link
US (1) US11927921B2 (ja)
EP (1) EP3879354A1 (ja)
JP (1) JP7143459B2 (ja)
CN (1) CN113448235B (ja)

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH288208A (de) * 1951-01-23 1953-01-15 Berthoud Robert Schwungkörper, insbesondere für selbstaufziehende Armband-Uhrwerke.
FR2312809A1 (fr) * 1975-05-30 1976-12-24 Ebauchesfabrik Eta Ag Procede de fabrication d'une masse de remontage pour mouvement de montre a remontage automatique et masse de remontage fabriquee selon ce procede
EP1918789A1 (fr) * 2006-10-31 2008-05-07 The Swatch Group Management Services AG Masse oscillante pour recharger la source d'énergie d'un instrument portable
CH703577A2 (fr) * 2011-03-23 2012-01-13 Christian Dior Couture Sa Masse oscillante pour montre automatique et montre automatique comportant une telle masse.
CN202472252U (zh) * 2012-01-13 2012-10-03 杭州正驰达精密机械有限公司 高比重合金自动锤
WO2014114379A1 (fr) * 2013-01-25 2014-07-31 Isa France Sas Pièce d'horlogerie oscillante
CH712108A1 (fr) * 2016-02-11 2017-08-15 Décovi S A Masse oscillante, notamment pour pièce d'horlogerie.

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH329806A (fr) * 1956-02-28 1958-05-15 Piquerez Sa Ervin Pièce d'horlogerie à remontage automatique par masse tournant autour d'un axe
JPS5828682A (ja) 1981-08-14 1983-02-19 Seiko Instr & Electronics Ltd 腕時計ケ−ス
ATE52462T1 (de) * 1986-11-03 1990-05-15 Asulab Sa Verbundmaterial.
CH690520A5 (fr) * 1995-12-20 2000-09-29 Delaneau Montres Dispositif de store mobile pour pièce d'horlogerie.
DE69811338T2 (de) * 1998-05-07 2003-12-11 Janvier S.A., Sainte-Croix Schwungmasse für Uhren mit selbstaufziehendem Uhrwerk und damit ausgestattete Uhr
CH695394A5 (fr) * 2002-03-15 2006-04-28 Zenith Internat S A Masse oscillante pour mouvement horloger automatique.
EP1445668B1 (fr) * 2003-02-04 2009-07-15 Vaucher Manufacture Fleurier SA Masse oscillante
JP2006038713A (ja) 2004-07-28 2006-02-09 Seiko Epson Corp 時計
EP2180385A1 (fr) * 2008-10-21 2010-04-28 The Swatch Group Research and Development Ltd. Procédé de fabrication d'une platine de montre
EP2482142B1 (fr) * 2011-01-27 2013-08-28 ETA SA Manufacture Horlogère Suisse Masse oscillante
JP5828682B2 (ja) 2011-06-06 2015-12-09 キヤノン株式会社 液体吐出ヘッドの製造方法
EP2551731A1 (fr) * 2011-07-28 2013-01-30 Cartier Création Studio S.A. Masse oscillante pivotée sur l'extérieur d'un mouvement d'horlogerie et mouvement d'horlogerie équipé d'une telle masse oscillante.
CH706000B1 (fr) 2012-01-13 2023-09-15 Christian Dior Couture Sa Masse de remontage.
CH707582B1 (fr) * 2013-02-04 2018-12-14 Montres Breguet Sa Sous-ensemble horloger à pivotement magnétique ou électrostatique.
WO2014154705A2 (fr) 2013-03-28 2014-10-02 Eta Sa Manufacture Horlogère Suisse Procede de fabrication d'une masse oscillante en materiaux composites
DE212014000245U1 (de) * 2014-01-20 2016-08-24 The Swatch Group Research And Development Ltd. Uhr mit mindestens einer Photolumineszenz-Komponente
EP3428737B1 (fr) * 2017-07-11 2021-04-07 ETA SA Manufacture Horlogère Suisse Masse de remontage oscillante pour pièce d'horlogerie à mouvement automatique et pièce d'horlogerie équipée d'une telle masse de remontage

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH288208A (de) * 1951-01-23 1953-01-15 Berthoud Robert Schwungkörper, insbesondere für selbstaufziehende Armband-Uhrwerke.
FR2312809A1 (fr) * 1975-05-30 1976-12-24 Ebauchesfabrik Eta Ag Procede de fabrication d'une masse de remontage pour mouvement de montre a remontage automatique et masse de remontage fabriquee selon ce procede
EP1918789A1 (fr) * 2006-10-31 2008-05-07 The Swatch Group Management Services AG Masse oscillante pour recharger la source d'énergie d'un instrument portable
CH703577A2 (fr) * 2011-03-23 2012-01-13 Christian Dior Couture Sa Masse oscillante pour montre automatique et montre automatique comportant une telle masse.
CN202472252U (zh) * 2012-01-13 2012-10-03 杭州正驰达精密机械有限公司 高比重合金自动锤
WO2014114379A1 (fr) * 2013-01-25 2014-07-31 Isa France Sas Pièce d'horlogerie oscillante
CH712108A1 (fr) * 2016-02-11 2017-08-15 Décovi S A Masse oscillante, notamment pour pièce d'horlogerie.

Also Published As

Publication number Publication date
CN113448235A (zh) 2021-09-28
JP7143459B2 (ja) 2022-09-28
CN113448235B (zh) 2023-04-07
JP2021139888A (ja) 2021-09-16
US11927921B2 (en) 2024-03-12
US20210278804A1 (en) 2021-09-09

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