EP2804054A1 - Antihaftvorrichtung einer Spiralfeder auf einer Brücke - Google Patents

Antihaftvorrichtung einer Spiralfeder auf einer Brücke Download PDF

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Publication number
EP2804054A1
EP2804054A1 EP14164648.9A EP14164648A EP2804054A1 EP 2804054 A1 EP2804054 A1 EP 2804054A1 EP 14164648 A EP14164648 A EP 14164648A EP 2804054 A1 EP2804054 A1 EP 2804054A1
Authority
EP
European Patent Office
Prior art keywords
bridge
spiral
movement
series
surface reduction
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
EP14164648.9A
Other languages
English (en)
French (fr)
Other versions
EP2804054B1 (de
Inventor
Laurent Klinger
Thierry Conus
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.)
ETA SA Manufacture Horlogere Suisse
Original Assignee
ETA SA Manufacture Horlogere Suisse
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 ETA SA Manufacture Horlogere Suisse filed Critical ETA SA Manufacture Horlogere Suisse
Priority to EP14164648.9A priority Critical patent/EP2804054B1/de
Publication of EP2804054A1 publication Critical patent/EP2804054A1/de
Application granted granted Critical
Publication of EP2804054B1 publication Critical patent/EP2804054B1/de
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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
    • G04B17/00—Mechanisms for stabilising frequency
    • G04B17/04—Oscillators acting by spring tension
    • G04B17/06—Oscillators with hairsprings, e.g. balance
    • G04B17/066—Manufacture of the spiral spring
    • 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
    • G04B29/00—Frameworks
    • G04B29/02—Plates; Bridges; Cocks
    • G04B29/025—Cocks

Definitions

  • the invention relates to an anti-adhesion device of a spiral on a bridge and more particularly to a spiral belonging to a balance-spring resonator.
  • Insulating materials such as silicon and its compounds, quartz, diamond, glass, ceramics or others are increasingly used to make parts of micromechanical watchmaking. As visible to Figures 2 and 3 , it has been observed, in particular on a spiral 7, in particular after an impact, turns tend to stick to the bridge 2 which affects the isochronism of the oscillator.
  • the object of the present invention is to overcome all or part of the disadvantages mentioned above by proposing an anti-adhesion device of a spiral on a bridge.
  • the invention relates to a watch movement comprising a resonator formed by the cooperation of a balance with a hairspring, said resonator being pivotally mounted between one bridge and another characterized in that the watch movement further comprises an anti-adhesion device of said spring against said bridge comprising surface reduction means formed on the bridge to limit the contact surface when the faces of said spiral and said bridge touching.
  • the spirals obtained by etching a wafer of silicon or quartz have particularly smooth faces conducive to adhesions. Therefore, advantageously according to the invention, it can be understood that, thanks to the anti-adhesion device, the faces of the spiral and the bridge which face each other offer a potential adhesion surface which is much more limited, which makes it possible to limit these phenomena.
  • the invention relates to a timepiece characterized in that it comprises a watch movement according to one of the preceding variants.
  • the movement 1 preferably comprises a resonator 3 comprising a rocker 5 and a spiral 7 for regulating the movement 1.
  • the resonator 3 is preferably pivotally mounted between a bridge 2 and another part 4 as a bridge or a plate.
  • the spiral 7 comprises in particular a ferrule 10 made of material or not.
  • the movement 1 preferably comprises an exhaust system 9 comprising an anchor 11 of the Swiss type and an escape wheel 13 intended to distribute the movements of the resonator but also to maintain it.
  • the exhaust system 9 is preferably mounted between two bridges 6, 8 and a plate 4.
  • the spiral 7 and, optionally, its ferrule 10 can be formed from any material and in particular from silicon and its compounds, quartz, diamond, glass, ceramic, metal or metal alloy.
  • the bridge 2 can also be formed from any material and in particular from a metal or a metal alloy.
  • the movement 1, preferably according to the invention further comprises an anti-adhesion device 19, 19 ', 19 "of the spiral 7, 7', 7" against the bridge 2, 2 ', 2 "comprising means 23, 23 ', 25, 25' of surface reduction between the faces of the spiral 7, 7 ', 7 "and the bridge 2, 2', 2" which are vis-à-vis to avoid the variations in operation of the movement 1.
  • the surface reduction means 23, 23 ', 25, 25' may be formed on the spiral 7, 7 ', 7 "and / or on the bridge 2, 2', 2".
  • the watch movement comprises a first example of anti-adhesion device 19.
  • the anti-adhesion device 19 comprises surface reduction means 23 formed on the bridge 2 '.
  • the surface reduction means 23 in the example of the figure 4 comprise at least one recess 16 with respect to the face 18 of the bridge 2 '.
  • each recess 16 may form one or more series of grooves.
  • a single spiral-shaped groove is formed on the face 18 of the bridge 2 '.
  • the grooves can thus form sun rays or knurling.
  • the watch movement comprises a second example of anti-adhesion device 19 '.
  • the anti-adhesion device 19 ' comprises first surface reduction means 23' formed on the bridge 2 'and second surface reduction means 25 formed on the spiral 7'.
  • the surface reduction means 23 'in the example of the figure 5 comprise at least one protuberance 18 'with respect to the face 16' of the bridge 2.
  • figure 5 a single spiral-shaped rib is formed on the face 16 'of the bridge 2.
  • they may be intersecting or not, for example the ribs. can thus form sun rays or knurling.
  • the surface reduction means 25 in the example of the figure 5 comprise at least one recess 15 with respect to the face 17 of the spiral 7 '.
  • each recess 15 may form one or more series of grooves.
  • multiple parallelepiped shaped grooves are formed on the face 17 of the spiral 7 '.
  • a single groove can run on all or part of the face of the spiral or at least two sets of grooves formed can be intersecting.
  • a single groove may be at a certain depth of the height over only a portion of the thickness to form a groove on the face of the hairspring 7 'or series of grooves may form a knurling.
  • the clock movement comprises a third example of anti-adhesion device 19.
  • the anti-adhesion device 19 “comprises first surface reduction means 23 formed on the bridge 2 'and second surface reduction means 25' formed on the spiral 7 ".
  • the surface reduction means 23 in the example of the figure 4 comprise at least one recess 16 with respect to the face 18 of the bridge 2 '.
  • each recess 16 may form one or more series of grooves.
  • a single spiral-shaped groove is formed on the face 18 of the bridge 2 '.
  • the grooves can thus form sun rays or knurling.
  • the surface reduction means 25 'in the example of the figure 6 comprise at least one protuberance 17 'with respect to the face 15' of the spiral 7.
  • figure 6 multiple parallelepiped-shaped grooves are formed on the face 15 'of the hairspring 7.
  • only one rib may run over all or part of the face of the hairspring 7 "or at least two sets of formed ribs may be intersecting.
  • a single rib may be at a certain height elevation over only a portion of the thickness to form a double shoulder on the face of the spiral 7 "or series of ribs may form a knurling .
  • anti-adhesion devices can take other forms, including geometric.
  • the embodiments and / or the alternatives may be combined with one another according to the configurations of the movement used. It is understood in particular that either the bridge or the spiral, or both are modified to reduce their potential contact area.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Micromachines (AREA)
  • Springs (AREA)
  • Jigs For Machine Tools (AREA)
EP14164648.9A 2013-05-17 2014-04-14 Antihaftvorrichtung einer Spiralfeder auf einer Brücke Active EP2804054B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP14164648.9A EP2804054B1 (de) 2013-05-17 2014-04-14 Antihaftvorrichtung einer Spiralfeder auf einer Brücke

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP13168277 2013-05-17
EP14164648.9A EP2804054B1 (de) 2013-05-17 2014-04-14 Antihaftvorrichtung einer Spiralfeder auf einer Brücke

Publications (2)

Publication Number Publication Date
EP2804054A1 true EP2804054A1 (de) 2014-11-19
EP2804054B1 EP2804054B1 (de) 2020-09-23

Family

ID=48430587

Family Applications (1)

Application Number Title Priority Date Filing Date
EP14164648.9A Active EP2804054B1 (de) 2013-05-17 2014-04-14 Antihaftvorrichtung einer Spiralfeder auf einer Brücke

Country Status (5)

Country Link
US (1) US9348313B2 (de)
EP (1) EP2804054B1 (de)
JP (1) JP6067617B2 (de)
CN (2) CN104166337B (de)
HK (2) HK1193712A2 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3452874B1 (de) * 2016-05-02 2020-06-10 Patek Philippe SA Genève Spiralfeder einer uhr

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2804054B1 (de) * 2013-05-17 2020-09-23 ETA SA Manufacture Horlogère Suisse Antihaftvorrichtung einer Spiralfeder auf einer Brücke

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1837721A1 (de) * 2006-03-24 2007-09-26 ETA SA Manufacture Horlogère Suisse Mikromechanisches Bauteil aus Isoliermaterial und Herstellungsverfahren dafür
EP2407831A1 (de) * 2010-07-12 2012-01-18 Rolex Sa Spirale für Unruh-Oszillator einer Uhr, und ihr Herstellungsverfahren
WO2012152843A1 (fr) * 2011-05-09 2012-11-15 Lvmh Swiss Manufactures Sa Ressort spiral en silicium pour montre mecanique

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT296182A (de)
EP1445670A1 (de) * 2003-02-06 2004-08-11 ETA SA Manufacture Horlogère Suisse Spiralfeder der Resonatorunruh und Fabrikationsmethode
EP1791039A1 (de) * 2005-11-25 2007-05-30 The Swatch Group Research and Development Ltd. Spiralfeder aus athermisches Glas für ein Uhrwerk und Herstellungsverfahren dafür
TWI438588B (zh) * 2006-03-24 2014-05-21 Eta Sa Mft Horlogere Suisse 由絕緣材料製成的微機械零件及其製造方法
EP2434353B1 (de) * 2010-09-28 2018-01-10 Montres Breguet SA Antischwingungsspirale für Uhrenhemmungen
EP2565730B1 (de) * 2011-08-29 2017-11-01 ETA SA Manufacture Horlogère Suisse Uhren-Hemmungsteilwerk
EP2804054B1 (de) * 2013-05-17 2020-09-23 ETA SA Manufacture Horlogère Suisse Antihaftvorrichtung einer Spiralfeder auf einer Brücke

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1837721A1 (de) * 2006-03-24 2007-09-26 ETA SA Manufacture Horlogère Suisse Mikromechanisches Bauteil aus Isoliermaterial und Herstellungsverfahren dafür
EP2407831A1 (de) * 2010-07-12 2012-01-18 Rolex Sa Spirale für Unruh-Oszillator einer Uhr, und ihr Herstellungsverfahren
WO2012152843A1 (fr) * 2011-05-09 2012-11-15 Lvmh Swiss Manufactures Sa Ressort spiral en silicium pour montre mecanique

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3452874B1 (de) * 2016-05-02 2020-06-10 Patek Philippe SA Genève Spiralfeder einer uhr

Also Published As

Publication number Publication date
HK1193712A2 (en) 2014-09-26
CN204241841U (zh) 2015-04-01
HK1204498A1 (en) 2015-11-20
US20140341000A1 (en) 2014-11-20
JP2014228542A (ja) 2014-12-08
US9348313B2 (en) 2016-05-24
JP6067617B2 (ja) 2017-01-25
EP2804054B1 (de) 2020-09-23
CN104166337B (zh) 2017-05-17
CN104166337A (zh) 2014-11-26

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