EP3489763A1 - Anker für die bewegungshemmung eines uhrwerks - Google Patents

Anker für die bewegungshemmung eines uhrwerks Download PDF

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Publication number
EP3489763A1
EP3489763A1 EP17203076.9A EP17203076A EP3489763A1 EP 3489763 A1 EP3489763 A1 EP 3489763A1 EP 17203076 A EP17203076 A EP 17203076A EP 3489763 A1 EP3489763 A1 EP 3489763A1
Authority
EP
European Patent Office
Prior art keywords
anchor
fork
horns
rod
pallet
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
EP17203076.9A
Other languages
English (en)
French (fr)
Other versions
EP3489763B1 (de
Inventor
Frédéric Vaucher
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 EP17203076.9A priority Critical patent/EP3489763B1/de
Priority to US16/164,858 priority patent/US11073795B2/en
Priority to JP2018202526A priority patent/JP6678720B2/ja
Priority to CN201811397830.7A priority patent/CN109814364B/zh
Publication of EP3489763A1 publication Critical patent/EP3489763A1/de
Application granted granted Critical
Publication of EP3489763B1 publication Critical patent/EP3489763B1/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
    • 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

Definitions

  • the present invention relates to an anchor for an escapement of a watch movement, in particular an escapement of Swiss anchor type having a one-piece body.
  • the document EP2320280 discloses an escapement anchor provided with a fork intended to cooperate with an anchor mounted on a plate.
  • the fork of the anchor is an insert, offset from the plane of the rod and the stinger.
  • the fork is attached to the rod by means of a tenon driven into respective orifices machined in the fork and the rod, the tenon also realizing the spacing between the plane of the rod and the fork.
  • the tenons are metal parts made by bar turning. A current problem with the tenons is that they have "nipples" cut.
  • EP2952971 which relates to an escapement anchor comprising a fork portion, a pallet support portion, pallets mounted on the pallet support portion, and a rod.
  • the rod is used to connect the support part of the pallets to the fork part.
  • the fork portion includes a fork, a dart and a tenon.
  • the wand and the support portion of the pallets are integral and form a monolithic body of the anchor.
  • the fork is an insert attached to the body by means of the tenon driven into a fixing hole in the body and a fixing hole in the fork.
  • the reported fork is spaced from the body.
  • the pin has the particularity of being made of a material having substantially no plastic field under stress.
  • the document CH704086 mainly relates to a method of manufacturing a metal part, in particular an anchor for an exhaust mechanism having three levels.
  • the anchor is manufactured using a first mold etched in a substrate in which is placed a stinger obtained by a LIGA process which forms the first level of the anchor.
  • the second and third levels of the anchor are made using two molds formed by two superposed layers of photoresist.
  • the anchor thus obtained comprises a monobloc rod whose end forms the two horns of the fork while a dart is attached to a post integral with the rod.
  • a major disadvantage of these anchors lies in the fact that the dart and the horns are two separate pieces resulting in inaccuracies in the positioning of the dart with respect to the horns when the fork or the dart is reported (e) on the stick, especially in the heights of separation of the dart and the horns. Moreover, the assembly of the rod of the anchor with the dart or the fork is a delicate operation.
  • the object of the present invention is to provide an anchor for an exhaust which is accurate, reliable over a long period of use and easy to manufacture.
  • the anchor comprises a pallet carrier, pallets mounted on the pallet carrier, a fork comprising first and second horns and a dart, and a rod connecting the pallet carrier to the fork.
  • the pallet support, the rod and the fork form a monolithic body of the anchor.
  • the body of the anchor is made by a lithographic and electroforming process.
  • the process is a two-level LIGA type process.
  • the pallet support, the rod and the stinger are made in a layer of constant thickness.
  • the first and second horns of the fork have a certain height and are made in the main layer as well as in a superimposed layer.
  • the main layer and the superimposed layer form the monolithic body of the anchor.
  • the ratio between the height of the first and second horns of the fork and the constant thickness of the main layer is between 1.5 and 10.
  • the first and second horns of the fork each comprise a bevelled surface extending over the entire height of said first and second horns.
  • the body of the anchor is made from a material selected from the group of materials comprising silicon, silicon nitride, silicon carbide, steel, gold or aluminum. one of its alloys, nickel, nickel-phosphorus, brass, copper-beryllium, nickel silver, polymers, ceramic and amorphous metal.
  • the invention also relates to an escapement comprising an anchor as described, and a watch movement comprising the escapement.
  • an anchor 2 for a Swiss-anchor type escapement for a watch movement comprises a fork 10, a support part of the pallets 6, pallets 14, and a rod 8 interconnecting the support part of the pallets 6 to the fork 10.
  • the rod 8 is coupled in rotation to the plate of a watch movement by means of a pivot 15.
  • the vanes 14 engage the teeth of an anchor wheel (not shown) of the exhaust which is connected to a power source providing a torque on the wheel.
  • One of the pallets constitutes the entry pallet and the other constitutes the exit pallet, that in function of the alternation of rotation of the anchor 2.
  • the fork 10 comprises a stinger 12 and a first horn 10a and a second horn 10b arranged on either side of the stinger 12.
  • the fork engages a plateau pin of a double plateau driven on the axis of a balance wheel (not shown) for regulating the frequency of rotation of the anchor wheel via the anchor.
  • the first horn 10a functions as input horn and the second horn 10b horn as output horn.
  • the functions of the first and second horns are reversed.
  • the dart 12 prevents the anchor pivots and so the fork passes the wrong side of the ankle when shock occurs.
  • the pallet support 6, the rod 8 and the fork 10 consisting of the dart 12 and the first and second horns 10a, 10b form a monolithic body 4.
  • the ratio between the height H of the first and second horns 10a, 10b and the thickness of the rod E of the body is between 1.5 and 10.
  • the first and second horns 10a, 10b of the fork 10 each comprise a bevelled surface 11a, 11b extending over the entire height H of the first and second horns and intended to cooperate with the balance plate pin.
  • the body 4 can be made of different materials including silicon, silicon nitride, and silicon carbide, steel, gold or one of its alloys, nickel, nickel-phosphorus, brass, copper -Beryllium, nickel silver, polymers, ceramic and amorphous metal.
  • the body 4 of the anchor is manufactured by a process LIGA (lithographic, galvanizing and forming) at two levels, which is an economical and precise manufacturing process for small parts.
  • the first level realized via this method is composed of the portion of the first and second horns 10a, 10b extending over the height HE.
  • the second level is composed of the other portion of the horns 10a, 10b, the fork 10, the rod 8 and the pallet support 6.
  • the invention makes it possible to reduce the manufacturing costs and increase the production yields of the anchor while avoiding inaccuracies in the positioning of the dart with respect to the horns, in particular in the heeling heights of the dart and the horns.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Micromachines (AREA)
  • Table Equipment (AREA)
  • Laminated Bodies (AREA)
  • Ceramic Products (AREA)
EP17203076.9A 2017-11-22 2017-11-22 Anker für die bewegungshemmung eines uhrwerks Active EP3489763B1 (de)

Priority Applications (4)

Application Number Priority Date Filing Date Title
EP17203076.9A EP3489763B1 (de) 2017-11-22 2017-11-22 Anker für die bewegungshemmung eines uhrwerks
US16/164,858 US11073795B2 (en) 2017-11-22 2018-10-19 Pallets for the escapement of a clock movement
JP2018202526A JP6678720B2 (ja) 2017-11-22 2018-10-29 時計ムーブメントの脱進機用パレット
CN201811397830.7A CN109814364B (zh) 2017-11-22 2018-11-22 用于钟表机芯的擒纵机构的擒纵叉

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP17203076.9A EP3489763B1 (de) 2017-11-22 2017-11-22 Anker für die bewegungshemmung eines uhrwerks

Publications (2)

Publication Number Publication Date
EP3489763A1 true EP3489763A1 (de) 2019-05-29
EP3489763B1 EP3489763B1 (de) 2021-06-16

Family

ID=60450497

Family Applications (1)

Application Number Title Priority Date Filing Date
EP17203076.9A Active EP3489763B1 (de) 2017-11-22 2017-11-22 Anker für die bewegungshemmung eines uhrwerks

Country Status (4)

Country Link
US (1) US11073795B2 (de)
EP (1) EP3489763B1 (de)
JP (1) JP6678720B2 (de)
CN (1) CN109814364B (de)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3783445B1 (de) 2019-08-22 2023-06-14 ETA SA Manufacture Horlogère Suisse Einstellmechanismus einer uhr mit hohem qualitätsfaktor und minimaler schmierung

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2320280A1 (de) 2009-11-06 2011-05-11 Nivarox-FAR S.A. Anker für Hemmungssystem eines Uhrwerks
CH704206A2 (fr) * 2010-12-14 2012-06-15 Chopard Technologies Sa Ancre et échappement muni d'une telle ancre.
EP2557461A1 (de) * 2011-08-12 2013-02-13 Nivarox-FAR S.A. Metallanker mit Polymer-Hörnern
WO2014146842A1 (fr) * 2013-03-22 2014-09-25 Omega Sa Ancre d'échappement coaxial monobloc
EP2952971A1 (de) 2014-06-05 2015-12-09 Nivarox-FAR S.A. Anker für Hemmungsmechanismus eines Uhrwerks

Family Cites Families (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1756286U (de) * 1953-09-29 1957-11-14 Gibbs Mfg And Res Corp Anordnung an hemmwerken fuer uhren oder sonstigen zeitmessvorrichtungen.
CH321184A (fr) * 1955-02-25 1957-04-30 Far Fab Assortiments Reunies Plateau de balancier pour assortiment à ancre et procédé de fabrication de ce plateau
US3335562A (en) * 1965-03-03 1967-08-15 Tissot Horlogerie Anchor escapement for timepieces
DE1756286A1 (de) * 1968-05-02 1970-03-19 Siegfried Baltzer Druckmittelbetriebener Hebebock,insbesondere Wagenheber
EP1045297B1 (de) * 1999-04-12 2003-07-02 Omega SA Koaxiale Ankerhemmung
CH696824A5 (fr) * 2003-04-01 2007-12-14 Chopard Manufacture Sa Ancre d'échappement.
DE602005023633D1 (de) * 2004-10-26 2010-10-28 Tag Heuer Sa Armbanduhr-regulierungsglied und mechanisches uhrwerk mit einem solchen regulierungsglied
DE06405114T1 (de) * 2006-03-15 2008-04-24 Doniar S.A. LIGA Verfahren zur Herstellung einer einzel- oder mehrlagigen metallischen Struktur und damit hergestellte Struktur
EP2400352A1 (de) * 2010-06-22 2011-12-28 The Swatch Group Research and Development Ltd. Hemmungssystem einer Uhr
JP2012063162A (ja) * 2010-09-14 2012-03-29 Seiko Instruments Inc 時計用歯車及び時計
CH704086B1 (fr) * 2010-11-11 2015-07-31 Mimotec S A Pièces métalliques multi-niveaux obtenues par un procédé du type LIGA et méthode de fabrication s'y référant.
JP2013545991A (ja) * 2010-12-14 2013-12-26 ショパード テクノロジーズ エスエー アンクル、およびそのようなアンクルを設けられた脱進機
US8690420B2 (en) * 2011-03-22 2014-04-08 Lvmh Swiss Manufactures Sa Mechanical watch movement
EP2706416B1 (de) * 2012-09-07 2015-11-18 The Swatch Group Research and Development Ltd Flexibler Anker mit konstanter Kraft
EP2813906A1 (de) * 2013-06-12 2014-12-17 Nivarox-FAR S.A. Bauteil für Uhrwerk
JP6206877B2 (ja) * 2014-03-06 2017-10-04 セイコーインスツル株式会社 脱進機、時計用ムーブメントおよび時計
CN104102118A (zh) * 2014-07-22 2014-10-15 福州小神龙表业技术研发有限公司 一种钟表机芯
EP3185083B1 (de) * 2015-12-23 2018-11-14 Montres Breguet S.A. Mechanischer uhrmechanismus mit einer ankerhemmung

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2320280A1 (de) 2009-11-06 2011-05-11 Nivarox-FAR S.A. Anker für Hemmungssystem eines Uhrwerks
CH704206A2 (fr) * 2010-12-14 2012-06-15 Chopard Technologies Sa Ancre et échappement muni d'une telle ancre.
EP2557461A1 (de) * 2011-08-12 2013-02-13 Nivarox-FAR S.A. Metallanker mit Polymer-Hörnern
WO2014146842A1 (fr) * 2013-03-22 2014-09-25 Omega Sa Ancre d'échappement coaxial monobloc
EP2952971A1 (de) 2014-06-05 2015-12-09 Nivarox-FAR S.A. Anker für Hemmungsmechanismus eines Uhrwerks

Also Published As

Publication number Publication date
JP6678720B2 (ja) 2020-04-08
US11073795B2 (en) 2021-07-27
EP3489763B1 (de) 2021-06-16
US20190155219A1 (en) 2019-05-23
CN109814364B (zh) 2021-02-19
JP2019095433A (ja) 2019-06-20
CN109814364A (zh) 2019-05-28

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