EP2924517B1 - Pièce composite monobloc cheville- petit plateau - Google Patents

Pièce composite monobloc cheville- petit plateau Download PDF

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Publication number
EP2924517B1
EP2924517B1 EP15155596.8A EP15155596A EP2924517B1 EP 2924517 B1 EP2924517 B1 EP 2924517B1 EP 15155596 A EP15155596 A EP 15155596A EP 2924517 B1 EP2924517 B1 EP 2924517B1
Authority
EP
European Patent Office
Prior art keywords
component
single hole
electroformed portion
silicon
functional
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.)
Active
Application number
EP15155596.8A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP2924517A1 (fr
Inventor
Pierre Cusin
Raphaël Garret
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.)
Nivarox Far SA
Nivarox SA
Original Assignee
Nivarox Far SA
Nivarox 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 Nivarox Far SA, Nivarox SA filed Critical Nivarox Far SA
Priority to EP15155596.8A priority Critical patent/EP2924517B1/fr
Publication of EP2924517A1 publication Critical patent/EP2924517A1/fr
Application granted granted Critical
Publication of EP2924517B1 publication Critical patent/EP2924517B1/fr
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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
    • G04B15/00—Escapements
    • G04B15/14—Component parts or constructional details, e.g. construction of the lever or the escape wheel
    • 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
    • G04B15/00—Escapements
    • G04B15/06—Free escapements
    • G04B15/08—Lever escapements
    • 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
    • G04B17/00—Mechanisms for stabilising frequency
    • G04B17/04—Oscillators acting by spring tension
    • G04B17/06—Oscillators with hairsprings, e.g. balance
    • G04B17/063—Balance construction

Definitions

  • the invention relates to a one-piece composite timepiece and, more specifically, to such a piece intended to replace a small tray-large plate-ankle assembly.
  • FIG. figure 1 In the Swiss anchor type escapement systems, it is known to use a double-tray-ankle assembly as illustrated in FIG. figure 1 .
  • This set includes a large plate B which carries an A pin and a small plate C with notch E which works with the dart of an anchor.
  • Ankle A is fixed under the large plate B and works with the fork of the same anchor.
  • the document EP2075652 discloses a composite exhaust plate having a first functional level comprising a peg of a first material arranged to cooperate with an anchor.
  • the first functional level also comprises electroformed pads made of a second metallic material partially covering with said pin and a second functional level comprising only said electroformed part forming a plate.
  • the plate of level 2 is not arranged to cooperate also with the anchor, and the ankle is not monoblock with the tray.
  • the object of the present invention is to overcome all or part of the disadvantages mentioned above by providing a part, alternative to a double-plate-ankle assembly, which is more compact and more accurate without tribological deterioration.
  • the invention relates to a one-piece composite micromechanical timepiece comprising a first functional level comprising a peg of a first material arranged to cooperate with a member, the first functional level also comprising an electroformed part made of a second metallic material. in partially covering with said pin and a second functional level comprising only said electroformed portion forming a plate arranged to cooperate also with said member, said first material being different from said second metal material.
  • the piece according to the invention is much more compact without loss in the quality of fixing or tribology of the ankle while ensuring better positioning between levels and functions.
  • the invention relates to a watch assembly comprising a balance-spring resonator mounted on an axis, characterized in that it further comprises a monobloc composite micromechanical component, according to one of the preceding variants, mounted on said axis by driving against said electroformed portion, and arranged to cooperate with an exhaust system.
  • the invention relates to a one-piece composite micromechanical watchmaking piece 1, that is to say having several different materials, that is to say of different nature, and integral with each other.
  • the piece 1 preferably comprises at least two distinct functional levels N 1 , N 2 .
  • a first functional level N 1 comprises a pin 3 in a first material arranged to cooperate with a member such as a fork of an anchor.
  • the first functional level N 1 also comprises an electroformed part 5 made of a second metallic material. It is immediately understood that the part 5 is made integral because it is electroformed over the ankle 3 during an electroplating process. Therefore, the electroformed portion 5 is partially overlapping with the ankle 3
  • the part 1 comprises a second functional level N 2 comprising only the electroformed portion 5 forming a plate arranged to cooperate also with the same organ such as the stinger of an anchor. It is realized immediately that the piece thus formed is much more compact than the double-plate-dowel assembly illustrated in FIG. figure 1 .
  • the part 5 being electroformed over the peg 3 during an electroplating process, the positioning between each level N 1 , N 2 is intrinsically very accurate.
  • the pin 3 comprises a lug 7 not covered by the electroformed portion 5.
  • the free end of the lug 7 narrows to a base 9 from which extends substantially symmetrically at least two blades 6, 8 partially covered by the electroformed portion 5.
  • the base 9 and / or the blades 6, 8 could alternatively be entirely covered by the electroformed portion 5. Indeed, for a better visualization at the figure 2 of the ankle 3, its upper part has not been covered by the electroformed part 5.
  • said at least two blades 6, 8 of the ankle 3 each extend in a circular arc but do not meet so as to leave some elasticity of the first material relative to the second metal material.
  • the first and second functional levels N 1 , N 2 are, preferably according to the invention, traversed by a single hole 11 in order to be able to adjust there for example an axis or a rod.
  • the single hole 11 has a circular section.
  • other section shapes are also conceivable such clover-shaped, polygon or ellipse.
  • the section of the single hole 11 is substantially constant for each of the first and second functional levels N 1 , N 2 in order to adjust the part 1 in the two planes of the first and second functional levels N 1 , N 2 .
  • the section of the single hole 11 is different between each of the first and second levels N 1 , N 2 so as to adjust the workpiece 1 preferably in the plane of one of the first and second functional levels N 1 , N 2 .
  • the wall 10 of the part 1 surrounding the single hole 11 is formed solely by the electroformed portion 5 to allow the part 1 to be driven for example against an axis or a rod. It is then understood that the electroformed part 5 is plastically deformed to make integral piece 1 against a for example an axis or a rod. It is also realized that said at least two blades 6, 8 of the ankle 3 can leave some elasticity in order to follow the deformation of the wall 10.
  • the electroformed part 5 forms at the second level N 2 two notches 13 , 15, the notch 13 may have the same function as the notch E of the usual double-plate-ankle assembly, that is to say for example cooperate with a sting of an anchor.
  • the first material of the peg 3 may be formed of monocrystalline doped silicon or not, polycrystalline silicon doped or not, silicon oxide, quartz, silica, monocrystalline corundum, polycrystalline corundum, alumina, ruby , made of silicon nitride or silicon carbide.
  • the first material may even be at least partially coated, in particular at the pin 7, silicon oxide, silicon nitride, silicon carbide or a carbon allotrope to improve its tribology.
  • the electroformed part 5 made of metallic material may comprise nickel, a nickel-cobalt alloy or a nickel-phosphorus alloy.
  • the invention also relates to a watch assembly 21 comprising a resonator 23 balancing 25 - spiral 27 mounted on an axis 29.
  • the assembly 21 further comprises a piece of micromechanical composite monoblock 1 according to the invention which is mounted on the 29 axis for example to cooperate with a Swiss anchor type exhaust system.
  • the present invention is not limited to the illustrated example but is susceptible of various variations and modifications that will occur to those skilled in the art.
  • the part 1 may comprise more than two functional levels N 1 , N 2 .
  • the hole 11 is open, that is to say have a slot, for example, in the direction of the notch 15 in order to be able to elastically mount the part 1 on an axis or a rod.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Micromachines (AREA)
  • Electromechanical Clocks (AREA)
EP15155596.8A 2014-03-24 2015-02-18 Pièce composite monobloc cheville- petit plateau Active EP2924517B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP15155596.8A EP2924517B1 (fr) 2014-03-24 2015-02-18 Pièce composite monobloc cheville- petit plateau

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP14161282 2014-03-24
EP15155596.8A EP2924517B1 (fr) 2014-03-24 2015-02-18 Pièce composite monobloc cheville- petit plateau

Publications (2)

Publication Number Publication Date
EP2924517A1 EP2924517A1 (fr) 2015-09-30
EP2924517B1 true EP2924517B1 (fr) 2016-11-09

Family

ID=50382269

Family Applications (1)

Application Number Title Priority Date Filing Date
EP15155596.8A Active EP2924517B1 (fr) 2014-03-24 2015-02-18 Pièce composite monobloc cheville- petit plateau

Country Status (7)

Country Link
US (1) US9223291B2 (ja)
EP (1) EP2924517B1 (ja)
JP (1) JP5947415B2 (ja)
CN (1) CN104950656B (ja)
HK (1) HK1215605A1 (ja)
RU (1) RU2593140C1 (ja)
TW (1) TWI551962B (ja)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3171229A1 (fr) * 2015-11-19 2017-05-24 Nivarox-FAR S.A. Composant d' horlogerie
CH716337A1 (fr) * 2019-06-19 2020-12-30 Mft Dhorlogerie Audemars Piguet Sa Ensemble pour échappement à ancre de mouvement horloger.

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH12666A (fr) * 1896-10-28 1897-05-31 Paul Perret Echappement Perret
FR1316624A (fr) * 1961-12-20 1963-02-01 Anciens Etablissements Duverdr Perfectionnements aux systèmes d'enfourchement des mouvements d'horlogerie
US3678683A (en) * 1971-02-26 1972-07-25 Gen Time Corp One-piece roller-impulse member for timepiece escapement
US3791251A (en) * 1972-06-05 1974-02-12 Bunker Ramo Timepiece escapement
CH567293B5 (fr) * 1972-07-19 1975-09-30 Far Fab Assortiments Reunies Echappament à ancre pour pièce d'horlogerie
DE602007008121D1 (de) * 2007-12-28 2010-09-09 Chopard Manufacture Sa Antriebs- und Übertragungsorgan für einen Hemmungsmechanimus, damit ausgestattete Platte und Hemmung und mit diesen ausgestattetes Uhrwerk
CH705276B1 (fr) * 2007-12-28 2013-01-31 Chopard Technologies Sa Organe d'entraînement et de transmission pour un échappement à ancre, plateau et échappement en étant équipés, et pièce d'horlogerie les comportant.
JP5462006B2 (ja) * 2009-02-17 2014-04-02 セイコーインスツル株式会社 脱進調速機、機械式時計、及びアンクル体の製造方法
CH702930A2 (fr) * 2010-04-01 2011-10-14 Patek Philippe Sa Geneve Echappement d'horlogerie à protection contre les chocs.
EP2400351B1 (fr) * 2010-06-22 2013-09-25 Omega SA Mobile monobloc pour une pièce d'horlogerie
EP2605081A1 (fr) * 2011-12-16 2013-06-19 ETA SA Manufacture Horlogère Suisse Balancier d'horlogerie surmoulé

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Also Published As

Publication number Publication date
TWI551962B (zh) 2016-10-01
TW201604666A (zh) 2016-02-01
JP2015184281A (ja) 2015-10-22
RU2593140C1 (ru) 2016-07-27
CN104950656B (zh) 2017-08-08
CN104950656A (zh) 2015-09-30
JP5947415B2 (ja) 2016-07-06
EP2924517A1 (fr) 2015-09-30
US9223291B2 (en) 2015-12-29
US20150268631A1 (en) 2015-09-24
HK1215605A1 (zh) 2016-09-02

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