EP2804054B1 - Dispositif anti-adhésion d'un spiral sur un pont - Google Patents

Dispositif anti-adhésion d'un spiral sur un pont Download PDF

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Publication number
EP2804054B1
EP2804054B1 EP14164648.9A EP14164648A EP2804054B1 EP 2804054 B1 EP2804054 B1 EP 2804054B1 EP 14164648 A EP14164648 A EP 14164648A EP 2804054 B1 EP2804054 B1 EP 2804054B1
Authority
EP
European Patent Office
Prior art keywords
bridge
timepiece movement
hairspring
series
balance spring
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
EP14164648.9A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP2804054A1 (fr
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/fr
Publication of EP2804054A1 publication Critical patent/EP2804054A1/fr
Application granted granted Critical
Publication of EP2804054B1 publication Critical patent/EP2804054B1/fr
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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
    • 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 balance spring on a bridge and more particularly a balance spring belonging to a balance resonator - balance spring.
  • Insulating materials such as silicon and its compounds, quartz, diamond, glass, ceramic or others are increasingly used to produce parts of watchmaking micromechanics. As visible to figures 2 and 3 , it has been observed, in particular on a hairspring 7, in particular after an impact, the turns tend to stick to the bridge 2, which is detrimental to the isochronism of the oscillator.
  • the aim of the present invention is to alleviate all or part of the drawbacks mentioned above by providing an anti-sticking device for a balance spring on a bridge.
  • the invention relates to a horological movement as defined in independent claim 1.
  • Preferred embodiments are defined in the dependent claims.
  • the balance springs obtained by etching a silicon or quartz wafer have particularly smooth faces conducive to adhesions. It is therefore understood, advantageously according to the invention, that, thanks to the anti-adhesion device, the faces of the balance-spring and of the bridge which are facing 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 horological movement according to one of the preceding variants.
  • the movement 1 preferably comprises a resonator 3 comprising a balance 5 and a hairspring 7 intended to regulate the movement 1.
  • the resonator 3 is, preferably, mounted to pivot between a bridge 2 and another part 4 such as a bridge or a plate.
  • the hairspring 7 comprises in particular a ferrule 10 whether or not integrally.
  • the movement 1 preferably comprises an escape 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 hairspring 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 hairspring 7, 7', 7" against the bridge 2, 2 ', 2 "comprising means 23, 23 ', 25, 25' of surface reduction between the faces of the hairspring 7, 7 ', 7 “and of the bridge 2, 2', 2" which are opposite to avoid variations in the rate of the movement 1.
  • the surface reduction means 23, 23 ', 25, 25' can be formed on the hairspring 7, 7 ', 7 "and / or on the bridge 2, 2', 2".
  • the watch movement comprises a first example of an 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 figure 4 comprise at least one recess 16 relative to the face 18 of the bridge 2 '.
  • each recess 16 can 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 sunrays or a knurling.
  • the watch movement comprises a second example of an 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 hairspring 7 '.
  • the surface reduction means 23 'in the example of figure 5 comprise at least one protuberance 18 'relative to the face 16' of the bridge 2 ".
  • each protuberance 18 ' can form one or more series of ribs.
  • a single spiral-shaped rib is formed on the face 16 'of the bridge 2 ".
  • the ribs can thus form sunrays or knurling.
  • the surface reduction means 25 in the example of figure 5 comprise at least one recess 15 relative to the face 17 of the hairspring 7 '.
  • each recess 15 can form one or more series of grooves.
  • multiple parallelepiped-shaped grooves are formed on the face 17 of the hairspring 7 '.
  • a single groove can run over all or part of the face of the hairspring or at least two series of grooves formed can intersect.
  • a single groove can be at a certain depth of the height over only a part of the thickness in order to form a groove on the face of the hairspring 7 'or series of grooves can form a knurling.
  • the watch movement comprises a third example of an 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 7 "hairspring.
  • the surface reduction means 23 in the example of figure 4 comprise at least one recess 16 relative to the face 18 of the bridge 2 '.
  • each recess 16 can 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 sunrays or a knurling.
  • the surface reduction means 25 'in the example of figure 6 comprise at least one protuberance 17 'relative to the face 15' of the hairspring 7 ".
  • multiple parallelepiped-shaped grooves are formed on the face 15 'of the hairspring 7 ".
  • a single rib may run on all or part of the face of the hairspring 7" or at least two series of ribs formed may intersect.
  • a single rib may be at a certain elevation from height over only part of the thickness in order to form a double shoulder on the face of the hairspring 7 "or series of ribs may form a knurling. .
  • the present invention is not limited to the example illustrated but is susceptible of various variants and modifications which will appear to those skilled in the art.
  • the anti-adhesion devices can take other forms, in particular geometric.
  • the embodiments and / or the alternatives can be combined with one another depending on the configurations of the movement used. It will be understood in particular that either the bridge or the balance spring or both are modified in order to reduce their potential contact surface.

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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 Dispositif anti-adhésion d'un spiral sur un pont Active EP2804054B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP14164648.9A EP2804054B1 (fr) 2013-05-17 2014-04-14 Dispositif anti-adhésion d'un spiral sur un pont

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP13168277 2013-05-17
EP14164648.9A EP2804054B1 (fr) 2013-05-17 2014-04-14 Dispositif anti-adhésion d'un spiral sur un pont

Publications (2)

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

Family

ID=48430587

Family Applications (1)

Application Number Title Priority Date Filing Date
EP14164648.9A Active EP2804054B1 (fr) 2013-05-17 2014-04-14 Dispositif anti-adhésion d'un spiral sur un pont

Country Status (5)

Country Link
US (1) US9348313B2 (ja)
EP (1) EP2804054B1 (ja)
JP (1) JP6067617B2 (ja)
CN (2) CN204241841U (ja)
HK (2) HK1193712A2 (ja)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2804054B1 (fr) * 2013-05-17 2020-09-23 ETA SA Manufacture Horlogère Suisse Dispositif anti-adhésion d'un spiral sur un pont
WO2017191533A1 (fr) * 2016-05-02 2017-11-09 Patek Philippe Sa Geneve Spiral d'horlogerie

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT296182A (ja)
EP1445670A1 (fr) * 2003-02-06 2004-08-11 ETA SA Manufacture Horlogère Suisse Spiral de résonateur balancier-spiral et son procédé de fabrication
EP1791039A1 (fr) * 2005-11-25 2007-05-30 The Swatch Group Research and Development Ltd. Spiral en verre athermique pour mouvement d'horlogerie et son procédé de fabrication
EP1837721A1 (fr) * 2006-03-24 2007-09-26 ETA SA Manufacture Horlogère Suisse Pièce de micro-mécanique en matériau isolant et son procédé de fabrication
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
US8562206B2 (en) 2010-07-12 2013-10-22 Rolex S.A. Hairspring for timepiece hairspring-balance oscillator, and method of manufacture thereof
EP2434353B1 (fr) * 2010-09-28 2018-01-10 Montres Breguet SA Spiral anti-galop pour échappement d'horlogerie
CH704906B1 (fr) * 2011-05-09 2020-06-30 Lvmh Swiss Mft Sa C/O Zenith Succursale De Lvmh Swiss Mft Sa Ressort spiral en silicium pour montre mécanique.
EP2735921B1 (fr) * 2011-08-29 2017-10-04 ETA SA Manufacture Horlogère Suisse Porte-échappement d'horlogerie
EP2804054B1 (fr) * 2013-05-17 2020-09-23 ETA SA Manufacture Horlogère Suisse Dispositif anti-adhésion d'un spiral sur un pont

Non-Patent Citations (1)

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

Also Published As

Publication number Publication date
US9348313B2 (en) 2016-05-24
HK1193712A2 (en) 2014-09-26
JP2014228542A (ja) 2014-12-08
JP6067617B2 (ja) 2017-01-25
CN204241841U (zh) 2015-04-01
EP2804054A1 (fr) 2014-11-19
CN104166337B (zh) 2017-05-17
CN104166337A (zh) 2014-11-26
US20140341000A1 (en) 2014-11-20
HK1204498A1 (en) 2015-11-20

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