EP2320280A1 - Anker für Hemmungssystem eines Uhrwerks - Google Patents

Anker für Hemmungssystem eines Uhrwerks Download PDF

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Publication number
EP2320280A1
EP2320280A1 EP09175274A EP09175274A EP2320280A1 EP 2320280 A1 EP2320280 A1 EP 2320280A1 EP 09175274 A EP09175274 A EP 09175274A EP 09175274 A EP09175274 A EP 09175274A EP 2320280 A1 EP2320280 A1 EP 2320280A1
Authority
EP
European Patent Office
Prior art keywords
fork
anchor
rod
silicon
exhaust system
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.)
Withdrawn
Application number
EP09175274A
Other languages
English (en)
French (fr)
Inventor
Raymond Gabus
Marco Verardo
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 CH01720/09A priority Critical patent/CH702202B1/fr
Priority to EP09175274A priority patent/EP2320280A1/de
Publication of EP2320280A1 publication Critical patent/EP2320280A1/de
Withdrawn legal-status Critical Current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
    • 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
    • G04B15/00—Escapements
    • G04B15/14—Component parts or constructional details, e.g. construction of the lever or the escape wheel

Definitions

  • the invention relates to an exhaust system of a timepiece and, more specifically, to such a system comprising an anchor whose function of the rod and that of the fork can be decoupled.
  • the Swiss-anchor type free-escapement systems are difficult to develop because they are the compromise between the lowest possible inertia and a pallet and fork tribology, the best possible. Thus, it is difficult to avoid snags between the plateau pin and the horns of the fork while preserving minimal inertia and even insensitivity to magnetic fields.
  • the object of the present invention is to overcome all or part of the disadvantages mentioned above by proposing an alternative solution for constructing an anchor that avoids compromises.
  • the invention relates to an escapement system comprising an anchor provided with a fork intended to cooperate with an anchor mounted on a plate, characterized in that the rod of the anchor comprises a dart coming from a first material and that the fork is formed by a second material and is attached to the rod of the anchor to optimize the respective functions of the fork and the rod.
  • the mechanical characteristics provided by the material of the rod are no longer tributary those of the fork. Therefore, by way of example, the inertial function of the rod and the tribological function of the fork can, advantageously according to the invention, be decoupled.
  • the invention also relates to a timepiece characterized in that it comprises an exhaust system according to one of the preceding variants.
  • the exhaust system 1 for a timepiece.
  • the exhaust system 1 comprises in particular an anchor 3 and a plate 5.
  • the plate 5 is preferably driven on the balance shaft 2 and comprises a small plate 4 provided with a notch 6 and a large plate 8 provided with ankle 7.
  • the anchor 3 preferably comprises a rod 9 formed by a first material which can be selected according to its desired sensitivity to the magnetic fields and / or its inertia and / or machinability and / or appearance.
  • the material of the rod 9 will preferably have a density of less than 8 ⁇ 10 3 kg.m -3 .
  • the material of the rod 9 is also paramagnetic in order to reduce the sensitivity of the anchor 3 to the magnetic fields.
  • Such a strip material 9 may be, for example, coated or uncoated silicon, titanium, aluminum, magnesium, steel, a copper alloy, an austenitic cobalt alloy or an austenitic nickel alloy. .
  • the rod 9 may also be formed by a precious metal such as gold or platinum or one of their alloys.
  • the rod 9 comprises arms 11 and 13 intended to receive pallets 10 and 12 in order to cooperate with at least one escape wheel (not shown) Between these two arms 11 and 13, is mounted the anchor rod 14 to pivotally mount the anchor 3.
  • the rod 14 can be made, for example, in a material such as steel, brass or aluminum. nickel.
  • the rod 9 comprises a dart 15 and a fork 17.
  • the dart 15 has come in shape with the rod 9 and, preferably, an extension of the latter.
  • the dart 15 is intended to cooperate with the small plate 4 to prevent accidental movements of the fork 17.
  • the fork 17 preferably comprises a board 19 formed by a second material, preferably different from the first material of the rod 9 and intended to allow the improvement of the tribological qualities of the fork 17 while avoiding to impair the overall inertia of the anchor 3.
  • the material of the fork 17 is also paramagnetic in order to reduce the sensitivity of the anchor 3 to the magnetic fields.
  • the material of the fork 17 is ideally a material having a low wear and a low coefficient of friction in association with the pin 7 of the large plate 8.
  • a material may be for example silicon, silicon coated with a layer of dioxide silicon, silicon coated with a diamond layer, Cu-Be alloy or a metal in amorphous form.
  • the fork 17 is preferably mounted directly above the stinger 15 and comprises two horns 16 and 18 intended to come into contact with the pin 7 of the large plate 8 so that, following the rotation of the pin 7, the anchor 3 pivoting about its rod 14 in a back and forth motion.
  • the optimization of the anchor 3 is allowed. between the desired sensitivity to the magnetic fields and / or the desired inertia and / or machinability and / or the appearance of the rod 9, on the one hand, and the low wear and the low coefficient of friction in association with the ankle 7, of the fork 17.
  • the rod 9 could be obtained using a method whose accuracy is less than that used to achieve the fork 17.
  • the fork 17 could, for example, be obtained by etching a silicon wafer or electroforming LIGA type or even formatting mechanics of a metal in amorphous form.
  • the fork 17 is attached to the rod 9 by means of a tenon 20 in order to raise the board of said fork relative to the plane of the rod 9.
  • the post 20 may be made of a material such as steel, brass or nickel silver and be, for example, driven out and / or glued and / or welded in the rod 9 and the fork 17.
  • the shapes of the anchor 3 and / or the plate 5 may be different.
  • the anchor 3 may thus comprise, for example, at least a third arm for receiving at least a third pallet for the application of the invention to a coaxial type exhaust system.
  • the first and second different materials can also be understood as a difference in external coating while their soul is identical.
  • the rod 9 could thus be formed of silicon-coated silicon and the diamond-coated silicon fork 17 without departing from the fact that the first material of the rod 9 is different from the second material of the fork 17.
  • the same reflection also applies to one of the materials whose nature is identical to the core of the other material, the other material being the only one to be coated.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Micromachines (AREA)
  • Laminated Bodies (AREA)
EP09175274A 2009-11-06 2009-11-06 Anker für Hemmungssystem eines Uhrwerks Withdrawn EP2320280A1 (de)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CH01720/09A CH702202B1 (fr) 2009-11-06 2009-11-06 Echappement à ancre.
EP09175274A EP2320280A1 (de) 2009-11-06 2009-11-06 Anker für Hemmungssystem eines Uhrwerks

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP09175274A EP2320280A1 (de) 2009-11-06 2009-11-06 Anker für Hemmungssystem eines Uhrwerks

Publications (1)

Publication Number Publication Date
EP2320280A1 true EP2320280A1 (de) 2011-05-11

Family

ID=41786319

Family Applications (1)

Application Number Title Priority Date Filing Date
EP09175274A Withdrawn EP2320280A1 (de) 2009-11-06 2009-11-06 Anker für Hemmungssystem eines Uhrwerks

Country Status (2)

Country Link
EP (1) EP2320280A1 (de)
CH (1) CH702202B1 (de)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2557461A1 (de) * 2011-08-12 2013-02-13 Nivarox-FAR S.A. Metallanker mit Polymer-Hörnern
EP2631721A1 (de) * 2012-02-23 2013-08-28 Richemont International S.A. Uhrkomponenten aus diamantverkleidetem Titan
EP2952971A1 (de) 2014-06-05 2015-12-09 Nivarox-FAR S.A. Anker für Hemmungsmechanismus eines Uhrwerks
CN109814364A (zh) * 2017-11-22 2019-05-28 尼瓦罗克斯-法尔股份公司 用于钟表机芯的擒纵机构的擒纵叉

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2813906A1 (de) * 2013-06-12 2014-12-17 Nivarox-FAR S.A. Bauteil für Uhrwerk

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US179769A (en) * 1876-07-11 champod
CH125519A (fr) * 1927-01-15 1928-04-16 Ditisheim & Cie Fabriques Vulc Ancre avec fourchette et dard pour échappement à double plateau.
FR2203104A1 (de) * 1972-10-12 1974-05-10 Favre Et Cie Sa Marc
EP0732635A1 (de) * 1995-03-17 1996-09-18 C.S.E.M. Centre Suisse D'electronique Et De Microtechnique Sa Mikromechanischer Teil und Verfahren zur dessen Herstellung

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US179769A (en) * 1876-07-11 champod
CH125519A (fr) * 1927-01-15 1928-04-16 Ditisheim & Cie Fabriques Vulc Ancre avec fourchette et dard pour échappement à double plateau.
FR2203104A1 (de) * 1972-10-12 1974-05-10 Favre Et Cie Sa Marc
EP0732635A1 (de) * 1995-03-17 1996-09-18 C.S.E.M. Centre Suisse D'electronique Et De Microtechnique Sa Mikromechanischer Teil und Verfahren zur dessen Herstellung

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2557461A1 (de) * 2011-08-12 2013-02-13 Nivarox-FAR S.A. Metallanker mit Polymer-Hörnern
EP2557460A1 (de) * 2011-08-12 2013-02-13 Nivarox-FAR S.A. Metallanker mit Polymer-Hörnern
CN102955418A (zh) * 2011-08-12 2013-03-06 尼瓦洛克斯-法尔股份有限公司 带聚合物叉口的金属擒纵叉
US9015921B2 (en) 2011-08-12 2015-04-28 Nivarox-Far S.A. Metal pallets with polymer horns
CN102955418B (zh) * 2011-08-12 2015-06-10 尼瓦洛克斯-法尔股份有限公司 带聚合物叉口的金属擒纵叉
EP2631721A1 (de) * 2012-02-23 2013-08-28 Richemont International S.A. Uhrkomponenten aus diamantverkleidetem Titan
EP2952971A1 (de) 2014-06-05 2015-12-09 Nivarox-FAR S.A. Anker für Hemmungsmechanismus eines Uhrwerks
JP2015230309A (ja) * 2014-06-05 2015-12-21 ニヴァロックス−ファー ソシエテ アノニム 時計ムーブメントの脱進機構のためのアンクル
CN105319938A (zh) * 2014-06-05 2016-02-10 尼瓦洛克斯-法尔股份有限公司 用于手表机芯的擒纵机构的擒纵叉
US9575465B2 (en) 2014-06-05 2017-02-21 Nivarox-Far S.A. Pallet lever for the escapement mechanism of a watch movement
CN105319938B (zh) * 2014-06-05 2018-02-13 尼瓦洛克斯-法尔股份有限公司 用于手表机芯的擒纵机构的擒纵叉
CN109814364A (zh) * 2017-11-22 2019-05-28 尼瓦罗克斯-法尔股份公司 用于钟表机芯的擒纵机构的擒纵叉
EP3489763A1 (de) 2017-11-22 2019-05-29 Nivarox-FAR S.A. Anker für die bewegungshemmung eines uhrwerks
US11073795B2 (en) 2017-11-22 2021-07-27 Nivarox-Far S.A. Pallets for the escapement of a clock movement

Also Published As

Publication number Publication date
CH702202B1 (fr) 2014-11-28
CH702202A2 (fr) 2011-05-13

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