EP3839647A1 - Aufzugseinheit mit moiré-effekt für automatisches uhrwerk - Google Patents

Aufzugseinheit mit moiré-effekt für automatisches uhrwerk Download PDF

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Publication number
EP3839647A1
EP3839647A1 EP19217903.4A EP19217903A EP3839647A1 EP 3839647 A1 EP3839647 A1 EP 3839647A1 EP 19217903 A EP19217903 A EP 19217903A EP 3839647 A1 EP3839647 A1 EP 3839647A1
Authority
EP
European Patent Office
Prior art keywords
winding
mass
assembly
movement
winding mass
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
EP19217903.4A
Other languages
English (en)
French (fr)
Other versions
EP3839647B1 (de
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 EP19217903.4A priority Critical patent/EP3839647B1/de
Priority to JP2020190658A priority patent/JP6902149B2/ja
Priority to US17/111,928 priority patent/US11061371B1/en
Priority to CN202011504633.8A priority patent/CN113009803B/zh
Publication of EP3839647A1 publication Critical patent/EP3839647A1/de
Application granted granted Critical
Publication of EP3839647B1 publication Critical patent/EP3839647B1/de
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
    • 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
    • G04B5/04—Automatic winding up by self-winding caused by the movement of the watch by oscillating weights the movement of which is limited
    • 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
    • G04B45/0007—Light-, colour-, line-, or spot-effects caused by parts or pictures moved by the clockwork
    • 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
    • G04B45/0015—Light-, colour-, line- or spot-effects caused by or on stationary 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
    • G04B45/02—Time pieces of which the clockwork is visible partly or wholly
    • 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
    • G04B5/10—Automatic winding up by self-winding caused by the movement of the watch by oscillating weights the movement of which is not limited

Definitions

  • the present invention relates to a moiré effect winding assembly for an automatic movement of a timepiece. More particularly, the invention relates to such a winding assembly 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 object of the present invention is to remedy the drawbacks of the prior art by proposing an oscillating winding mass with dynamic moiré effect for a timepiece.
  • the invention relates to a winding assembly with moiré effect for an automatic movement of a timepiece, the assembly comprising an oscillating winding mass movable relative to the movement, said winding mass being intended to be mounted to rotate on an axis of the movement, a part of the winding mass forming a heavy part allowing the oscillation of the mass in response to the movement of the timepiece and to the force of gravity.
  • the assembly comprises an element which is stationary relative to the movement, said stationary element being arranged under the winding mass, the mobile mass being configured to move at least in part above the element. stationary, said stationary element comprising a first relief pattern and the winding mass comprising a plurality of through openings defining a second pattern, so as to create a dynamic moiré effect when the winding mass moves above the element motionless.
  • this winding assembly a dynamic moiré effect is obtained created by the movement of the winding mass on the stationary element. Indeed, the displacement of the second openwork pattern above the first relief pattern generates an optical effect of the moiré type.
  • the moiré effect creates an impression of movement of a shape thanks to the relative displacement of the two patterns.
  • a predefined shape can be displayed, and it dynamically animates thanks to the path traveled by the mobile mass on the stationary element.
  • the movement of the winding mass has a more attractive aesthetic rendering than a conventional winding mass known from the state of the art.
  • This winding assembly gives more cachet to the winding mass and therefore to the timepiece comprising the automatic movement fitted with this assembly.
  • the winding mass comprises amorphous metal, for example a zirconium-based alloy, preferably in its entirety except for the heavy part.
  • the winding mass comprises a first perforated structure forming the second pattern.
  • the winding mass comprises a ring in which the first structure is assembled.
  • the stationary element comprises a second perforated structure forming the first pattern.
  • the first and the second structure are identical.
  • the first and the second structure have substantially equal dimensions.
  • the first and the second structure have the shape of a multi-stranded spiral.
  • the winding mass comprises a high density insert forming the heavy part of the winding mass.
  • the insert comprises a high density material, with a density greater than 10, of preferably greater than 20, for example tungsten or a tungsten alloy.
  • the insert is molded onto the ring.
  • 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 assembly as defined above.
  • FIG. 1 An embodiment of a winding assembly with dynamic moiré effect for an automatic movement of a timepiece according to the invention, designated by the general reference 1.
  • This assembly 1 is intended to equip conventionally the automatic winding movement 2 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 2 visible from the back, and which are not shown in the figure.
  • the assembly 1 comprises an oscillating winding mass 3 movable relative to the movement 2, said winding mass 3 being intended to be mounted for rotation on an axis 25 of the movement 2.
  • the winding mass 1 comprises a heavy part allowing the oscillation of the mass in response to the movement of the timepiece and to the force of gravity.
  • the assembly 1 further comprises a stationary element 4 with respect to the movement 2.
  • the stationary element 4 is arranged under the winding mass 3, so that the mobile mass 3 is configured to move above the element. motionless.
  • Said stationary element 4 comprises a first relief pattern and the winding mass 3 comprises a second perforated pattern, so as to create a dynamic moiré effect when the winding mass 3 moves on the stationary element 4.
  • the winding mass 3 is preferably circular having radial symmetry. Thus, a continuous visual effect is obtained when the winding mass 3 moves above the stationary element 4.
  • the winding mass 3 comprises a ring 5, and a first structure perforated 7 assembled to the ring 5.
  • the first structure 7 comprises a plurality of through openings 28 defining the second pattern.
  • the first perforated structure 7 is fixed inside the ring 5.
  • the ring 5 and the first structure 7 are arranged in the same plane.
  • the fixed element 4 comprises a second structure 8 in relief forming the first pattern.
  • the second structure 8 is also perforated, to form the relief of the first pattern.
  • the first 7 and the second structure 8 have a multi-stranded spiral shape 9, 11.
  • the structures each have 8 strands 9, 11, the through openings 28 being defined between two strands 11.
  • Each strand 9, 11 has a lightning bolt shape. having at least one step.
  • the strands 9, 11 have the same shape and are repeated periodically around a central element 12, 16.
  • the strands 9, 11 widen between the central element 12, 16 and the other end of the strands 9, 11.
  • the first 7 and the second structure 8 are similar.
  • the first 7 and the second structure 8 have substantially equal dimensions.
  • the first 7 and the second structure 8 are superimposed.
  • the structures 7, 8 are in the opposite position from one another.
  • the end of each strand 9, 11 of the first structure 7 is fixed inside the ring 5.
  • the ring 5 comprises a high density insert 6.
  • the insert 6 is formed from a high density material, preferably with a density greater than 10, or even 20.
  • the high density material is for example tungsten or a tungsten alloy.
  • the insert 6 is preferably overmolded on the ring 5.
  • the insert 6 has the shape of a circular arc, the thickness and height of which correspond to those of the ring, the arc forming an angle between 20 ° and 50 °. Other shapes of insert 6 are obviously possible.
  • the winding mass 3, here the first structure 7 and the ring 5, is preferably formed of an amorphous metal, except for the heavy part.
  • the amorphous metal is, for example, an alloy based on zirconium.
  • the amorphous metal is for example injected at high pressure into a mold by a method of the High Pressure Die Casting type. It is also possible to form an amorphous metal disc, which is then laser cut to form the structure.
  • the stationary element 4 can be formed from another material, depending on the visual appearance that is desired.
  • the stationary element 4 is thinner than the winding mass 3, in particular because of the insert 6 of the mass, which makes it thicker.
  • the stationary element 4 and the winding mass 3 are assembled to each other by the central elements 12, 16, which are associated around the axis 25 of the movement 2.
  • the stationary element 4 does not turn around. of the axis 25, while the winding mass 3 can rotate around the axis 25 above the stationary element 4.
  • the figure 3 shows a variant of the previous embodiment.
  • the assembly 10 comprises a winding mass 13 and a fixed element 14 which is similar to the first variant, but whose structures 17, 18 include eighteen strands 19, 21.
  • the strands 19, 21 are arcs of a circle, which widen from the central element 22, 26 to the ring 15.
  • the fixed element 14 also comprises a ring 27 in which the first structure 18 is arranged.
  • the assembly 10 is manufactured and mounted on an axis of a timepiece movement in a manner similar to the first variant embodiment.
  • the ring comprises a high density insert arranged in its mass. The other characteristics of this variant are the same as for the first variant.
  • the embodiments of the figures show exemplary embodiments of an assembly 1, 10 making it possible to obtain a dynamic moiré effect.
  • the invention is in no way limited to this example, and others embodiments are of course possible. It is for example possible to use conventional patterns of moiré effects, in which the first structure is provided with parallel ribs and the second structure comprises parallel blades. The movement of the parallel blades on the ribs makes it possible to obtain a moiré effect.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electromechanical Clocks (AREA)
  • Electric Clocks (AREA)
EP19217903.4A 2019-12-19 2019-12-19 Aufzugseinheit mit moiré-effekt für automatisches uhrwerk Active EP3839647B1 (de)

Priority Applications (4)

Application Number Priority Date Filing Date Title
EP19217903.4A EP3839647B1 (de) 2019-12-19 2019-12-19 Aufzugseinheit mit moiré-effekt für automatisches uhrwerk
JP2020190658A JP6902149B2 (ja) 2019-12-19 2020-11-17 自動計時器ムーブメントのためのモアレ効果巻上げアセンブリ
US17/111,928 US11061371B1 (en) 2019-12-19 2020-12-04 Moiré-effect winding assembly for automatic timepiece movement
CN202011504633.8A CN113009803B (zh) 2019-12-19 2020-12-18 用于自动时计机芯的莫尔效应上条组件

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP19217903.4A EP3839647B1 (de) 2019-12-19 2019-12-19 Aufzugseinheit mit moiré-effekt für automatisches uhrwerk

Publications (2)

Publication Number Publication Date
EP3839647A1 true EP3839647A1 (de) 2021-06-23
EP3839647B1 EP3839647B1 (de) 2023-10-11

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EP19217903.4A Active EP3839647B1 (de) 2019-12-19 2019-12-19 Aufzugseinheit mit moiré-effekt für automatisches uhrwerk

Country Status (4)

Country Link
US (1) US11061371B1 (de)
EP (1) EP3839647B1 (de)
JP (1) JP6902149B2 (de)
CN (1) CN113009803B (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4339714A1 (de) * 2022-09-19 2024-03-20 Omega SA Uhr, die zur erzeugung einer sequentiellen animation geeignet ist

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102019207322B4 (de) * 2019-05-20 2021-07-29 Siemens Aktiengesellschaft Optische Ablesevorrichtung für ein Zeigerinstrument

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1135725A (fr) * 1955-04-05 1957-05-03 Alduc Article d'horlogerie comprenant une décoration changeante
US5586089A (en) * 1994-03-18 1996-12-17 Mcgarvey; John D. Rotational moire timepiece
DE19647715A1 (de) * 1996-11-19 1998-05-20 Goetz Matthias Anzeigegerät
WO2008062247A1 (en) * 2006-10-27 2008-05-29 Emin Gabrielyan Display device
CH707999A1 (fr) * 2013-04-23 2014-10-31 Horlogers Dior Sa Atel Pièce horlogère, masse oscillante comprenant une telle pièce, procédé de fabrication d'une telle pièce et procédé de fabrication d'une telle masse.
EP3428737A1 (de) * 2017-07-11 2019-01-16 ETA SA Manufacture Horlogère Suisse Schwungmasse für uhr mit automatikwerk, und uhr, die mit einer solchen schwungmasse ausgestattet ist

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB0014987D0 (en) * 2000-06-19 2000-08-09 Cardbox Software Ltd Display device
US6660997B2 (en) * 2001-04-26 2003-12-09 Creo Srl Absolute position Moiré type encoder for use in a control system
US20030214885A1 (en) * 2002-05-17 2003-11-20 Summer Powell Electronic time-telling device
FR2852110A1 (fr) * 2003-03-05 2004-09-10 Emmanuel Dietrich Montre-bracelet a remontage par masselotte oscillante
JP5964089B2 (ja) * 2012-03-07 2016-08-03 セイコーインスツル株式会社 時計用回転錘および時計用回転錘を備えた時計
EP2998801A1 (de) * 2014-09-19 2016-03-23 The Swatch Group Research and Development Ltd. Magnetische Ankerhemmung, und Gangeinstellvorrichtung eines Uhrwerks
EP3407143A1 (de) * 2017-05-24 2018-11-28 Rolex Sa Mechanische verbindungsvorrichtung

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1135725A (fr) * 1955-04-05 1957-05-03 Alduc Article d'horlogerie comprenant une décoration changeante
US5586089A (en) * 1994-03-18 1996-12-17 Mcgarvey; John D. Rotational moire timepiece
DE19647715A1 (de) * 1996-11-19 1998-05-20 Goetz Matthias Anzeigegerät
WO2008062247A1 (en) * 2006-10-27 2008-05-29 Emin Gabrielyan Display device
CH707999A1 (fr) * 2013-04-23 2014-10-31 Horlogers Dior Sa Atel Pièce horlogère, masse oscillante comprenant une telle pièce, procédé de fabrication d'une telle pièce et procédé de fabrication d'une telle masse.
EP3428737A1 (de) * 2017-07-11 2019-01-16 ETA SA Manufacture Horlogère Suisse Schwungmasse für uhr mit automatikwerk, und uhr, die mit einer solchen schwungmasse ausgestattet ist

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4339714A1 (de) * 2022-09-19 2024-03-20 Omega SA Uhr, die zur erzeugung einer sequentiellen animation geeignet ist

Also Published As

Publication number Publication date
US20210191324A1 (en) 2021-06-24
US11061371B1 (en) 2021-07-13
EP3839647B1 (de) 2023-10-11
CN113009803A (zh) 2021-06-22
JP6902149B2 (ja) 2021-07-14
CN113009803B (zh) 2022-06-14
JP2021099311A (ja) 2021-07-01

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