EP1984794B1 - Stossdämpferspiralrolle - Google Patents

Stossdämpferspiralrolle Download PDF

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Publication number
EP1984794B1
EP1984794B1 EP07704349A EP07704349A EP1984794B1 EP 1984794 B1 EP1984794 B1 EP 1984794B1 EP 07704349 A EP07704349 A EP 07704349A EP 07704349 A EP07704349 A EP 07704349A EP 1984794 B1 EP1984794 B1 EP 1984794B1
Authority
EP
European Patent Office
Prior art keywords
collet
balance
spring set
set according
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
EP07704349A
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English (en)
French (fr)
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EP1984794A1 (de
Inventor
Thierry Hessler
Jean-Jacques Born
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.)
Swatch Group Research and Development SA
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Swatch Group Research and Development SA
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Filing date
Publication date
Application filed by Swatch Group Research and Development SA filed Critical Swatch Group Research and Development SA
Priority to EP07704349A priority Critical patent/EP1984794B1/de
Publication of EP1984794A1 publication Critical patent/EP1984794A1/de
Application granted granted Critical
Publication of EP1984794B1 publication Critical patent/EP1984794B1/de
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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
    • G04B17/00—Mechanisms for stabilising frequency
    • G04B17/04—Oscillators acting by spring tension
    • G04B17/06—Oscillators with hairsprings, e.g. balance
    • 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
    • G04B17/32—Component parts or constructional details, e.g. collet, stud, virole or piton
    • G04B17/34—Component parts or constructional details, e.g. collet, stud, virole or piton for fastening the hairspring onto the balance
    • G04B17/345—Details of the spiral roll

Definitions

  • the present invention relates to a ferrule, made in one piece with the spiral of a balance-spiral regulating system of a clockwork mechanical movement, and whose shape has been studied to minimize the risk of breakage at the ferrule-spiral junction. case of shock.
  • the balance-sprung adjusting system constitutes one of the most fragile parts of the mechanism, in particular in the event of shocks that can cause the tigerons of the balance shaft to rupture, or even the rupture of the spiral at the level of the junction ferrule-spiral.
  • shock absorbing bearings such as the landing called "Incabloc”.
  • Such damping bearings also help to protect the hairspring but are insufficient when an impact causes a large clearance of the hairspring and creates a tension at the junction ferrule-curve inside the hairspring.
  • the risk of breakage at this junction is greater when the curve inside is of the Grossmann type with a ring-shaped shell, that is to say when the first turn of the curve inside has a no larger than that of the following turns, making the space between this first turn and the ferrule is relatively large.
  • the risk of rupture is further increased when the hairspring is made of a brittle material, such as silicon, monocrystalline quartz or glass, and / or when it is made in one piece at the same time as the ferrule by techniques of micromachining techniques or by photolithography and galvanic growth, as described in the patent EP 1 445 670 .
  • the present invention therefore aims at overcoming the drawbacks of the aforementioned prior art by providing, for a spiral balance adjusting system, a ferrule-spiral assembly whose contour of the ferrule makes it possible to minimize the risk of rupture at the ferrule-spiral junction by case of violent shocks.
  • the subject of the invention is an anti-shock spiral-shroud assembly formed of a plate having an opening for fixing it to a balance shaft of a balance-spring balance system and means for securing a spiral to the ferrule.
  • Said assembly is characterized in that the ferrule has a non-circular asymmetrical contour which follows, from its junction point with the hairspring at least in place at a substantially constant distance d , the contour of the first turn of the curve inside.
  • the outline of the shell may be continuous or scalloped. In the latter case the distance d is the distance between the first turn of the ends of the festoon teeth.
  • This construction has the advantage of limiting the deflection of the first turn during violent shocks, and thereby significantly reduce the risk of rupture at the junction ferrule-spiral, especially when the ferrule is made of a sensitive brittle material impact, which will be more particularly illustrated in the following description by a material such as silicon, quartz or glass,
  • Virollage can be achieved by any known means such as a pin-like flange or laser welding.
  • the ferrule and the spiral are made in one piece.
  • the plate forming the ferrule comprises recesses whose surfaces and distribution are chosen to reposition said center of gravity on the balance shaft. These recesses can further communicate with the hunting opening to give it a certain elasticity.
  • the ferrule and the spiral form a single piece made of the same material Recent technologies well known to those skilled in the art allow in fact to achieve almost any contour with great precision and with a high aspect ratio. If the material used is a metal or an alloy, the technique of photolithography and electroforming will be used. If the material used is an amorphous or crystalline material, such as glass, quartz or silicon, it will be used by adapting a micromachining process, already used for example in the manufacture of integrated circuits.
  • the figure 1 represents a first embodiment of a ferrule made in one piece at the same time as the spiral 7, that is to say without discontinuity of material at the junction 2 between the plate 1 of the ferrule and the first turn 11 of the curve inside.
  • the plate 1 has an opening 3 for fixing the ferrule on the balance shaft 5.
  • contour 9 follows at a substantially constant distance d the inner contour of the first turn 11, that is to say the turn which starts from the junction 2 and which makes a complete turn to find itself radially at the same level that said junction 2.
  • the outline of the shell is not continuous and has a scalloped shape having a succession of recesses 10 and teeth 12 whose ends are at the distance d from the first turn 11.
  • the figure 3 shows how it is possible to eliminate the aforementioned drawback. It can be seen that the center of gravity g can be repositioned on the balance shaft 5 by forming in the plate 1 of the ferrule recesses 13 whose surfaces decrease in the opposite direction of the coil winding. According to another embodiment not shown, these recesses 13 may also be joined. The distribution and surfaces of these recesses are computational those skilled in the art since we defined the shape of the ferrule and the place where it is desired to have the center of gravity of the ferrule or the ferrule-spiral assembly.
  • the figure 4 shows a third embodiment which differs from the previous embodiment in that the recesses 13 communicate through through passages 15 with the opening 3, recesses and passages being further distributed to refocus the center of gravity of the ferrule-spiral assembly on the
  • This construction also has the advantage of giving a certain elasticity to the driving opening, which is particularly useful when the material used to make the ferrule-spiral assembly is a brittle material, such as the glass, quartz or silicon.
  • the ferrule when the ferrule has a scalloped contour, it is possible to reposition the center of gravity g of the ferrule or the ferrule-spiral assembly on the balance shaft by progressively increasing the depth of the hollow 12 between the teeth 10 as one moves away from the function 2 between the hairspring and the shell.

Claims (8)

  1. Stossfeste Spiralrolle-Spiralfeder-Einheit, die von einer Platte (1) gebildet ist, die eine Spiralrolle umfasst, die eine Öffnung (3) für die Befestigung eines Unruh-Spiralfeder-Reguliersystems eines mechanischen Uhrwerks auf einer Unruhwelle (5) aufweist, wobei die Spiralrolle aus einem Stück und ohne Werkstoffunterbrechung mit der Spiralfeder (7) ausgeführt ist, dadurch gekennzeichnet, dass die Spiralrolle (1) einen asymmetrischen Umriss (9) aufweist, der ausgehend von ihrer Verbindungsstelle (2) mit der Spiralfeder (7) wenigstens stellenweise in merklich konstantem Abstand d dem Umriss der ersten Windung (11) der Innenkurve folgt.
  2. Spiralrolle-Spiralfeder-Einheit nach Anspruch 1, dadurch gekennzeichnet, dass der Umriss der Spiralrolle eine fortlaufende Kurve ist.
  3. Spiralrolle-Spiralfeder-Einheit nach Anspruch 1, dadurch gekennzeichnet, dass der Umriss der Spiralrolle eine gewellte Kurve ist, die eine Folge von Ausnehmungen (10) und von Zähnen (12), deren Ränder in einem Abstand d zu der ersten Windung (11) angeordnet sind, aufweist.
  4. Spiralrolle-Spiralfeder-Einheit nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die die Spiralrolle bildende Platte (1) Aussparungen (13) umfasst, deren Flächen und Verteilung derart gewählt werden, dass der Schwerpunkt der Spiralrolle oder der Spiralrolle-Spiralfeder-Einheit wieder auf der Unruhwelle (5) positioniert wird.
  5. Spiralrolle-Spiralfeder-Einheit nach Anspruch 4, dadurch gekennzeichnet, dass die Aussparungen (13) durch Durchgänge (15) verlängert sind, die mit der für die Befestigung auf der Welle (5) bestimmten Einpressöffnung (3) in Verbindung stehen.
  6. Spiralrolle-Spiralfeder-Einheit nach Anspruch 3, dadurch gekennzeichnet, dass die Tiefe der Ausnehmungen (10) zwischen den Zähnen (12) allmählich in dem Masse zunimmt, wie man sich von der Verbindungsstelle (2) zwischen der Spiralrolle und der Spiralfeder (7) entfernt, um den Schwerpunkt der Spiralrolle-Spiralfeder-Einheit wieder auf der Unruhwelle (5) zu positionieren.
  7. Spiralrolle-Spiralfeder-Einheit nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass der Werkstoff unter Glas, Quarz und Silizium gewählt wird.
  8. Spiralrolle-Spiralfeder-Einheit nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, dass der Werkstoff ein Metall oder eine Metalllegierung ist.
EP07704349A 2006-02-09 2007-02-05 Stossdämpferspiralrolle Active EP1984794B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP07704349A EP1984794B1 (de) 2006-02-09 2007-02-05 Stossdämpferspiralrolle

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP06002642A EP1818736A1 (de) 2006-02-09 2006-02-09 Stossfeste Spiralrolle
EP07704349A EP1984794B1 (de) 2006-02-09 2007-02-05 Stossdämpferspiralrolle
PCT/EP2007/051065 WO2007090806A1 (fr) 2006-02-09 2007-02-05 Virole anti-choc

Publications (2)

Publication Number Publication Date
EP1984794A1 EP1984794A1 (de) 2008-10-29
EP1984794B1 true EP1984794B1 (de) 2009-10-07

Family

ID=37451076

Family Applications (2)

Application Number Title Priority Date Filing Date
EP06002642A Withdrawn EP1818736A1 (de) 2006-02-09 2006-02-09 Stossfeste Spiralrolle
EP07704349A Active EP1984794B1 (de) 2006-02-09 2007-02-05 Stossdämpferspiralrolle

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP06002642A Withdrawn EP1818736A1 (de) 2006-02-09 2006-02-09 Stossfeste Spiralrolle

Country Status (10)

Country Link
US (1) US8047705B2 (de)
EP (2) EP1818736A1 (de)
JP (1) JP5243272B2 (de)
KR (1) KR20080092921A (de)
CN (1) CN101379445B (de)
AT (1) ATE445177T1 (de)
DE (1) DE602007002695D1 (de)
HK (1) HK1129468A1 (de)
TW (1) TWI374344B (de)
WO (1) WO2007090806A1 (de)

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EP1445670A1 (de) * 2003-02-06 2004-08-11 ETA SA Manufacture Horlogère Suisse Spiralfeder der Resonatorunruh und Fabrikationsmethode
EP1857891A1 (de) * 2006-05-17 2007-11-21 Patek Philippe Sa Spiralfeder-Spiralrollegesamtheit für ein Uhrwerk
EP2105807B1 (de) * 2008-03-28 2015-12-02 Montres Breguet SA Monoblockspirale zur Erhöhung der Kurve und ihr Herstellungsverfahren
EP2184653A1 (de) * 2008-11-06 2010-05-12 Montres Breguet S.A. Spiralfeder mit Endkurvenerhöhung aus mikro-bearbeitbarem Material
US8147127B2 (en) * 2008-12-18 2012-04-03 Manufacture Roger Dubuis S.A. Fixation of a spiral spring in a watch movement
CH701783B1 (fr) * 2009-09-07 2015-01-30 Manuf Et Fabrique De Montres Et Chronomètres Ulysse Nardin Le Locle S A Ressort spiral de mouvement de montre.
EP2317407A1 (de) * 2009-10-29 2011-05-04 Nivarox-FAR S.A. System zum Befestigen eines Teils ohne Eintreiben oder Kleben
CH703172B1 (fr) 2010-05-18 2014-11-14 Montres Breguet Sa Spiral à élévation de courbe en silicium.
US8562206B2 (en) * 2010-07-12 2013-10-22 Rolex S.A. Hairspring for timepiece hairspring-balance oscillator, and method of manufacture thereof
EP2761380B1 (de) * 2011-09-29 2023-05-31 Rolex S.A. Einteilige anordnung aus einer spiralfeder und spannzange
EP2607974A1 (de) * 2011-12-22 2013-06-26 The Swatch Group Research and Development Ltd. Verfahren zur Herstellung eines Resonators
EP2607971A1 (de) * 2011-12-22 2013-06-26 The Swatch Group Research and Development Ltd. Verfahren zur Herstellung eines Bauteils
EP2690507B1 (de) * 2012-07-26 2014-12-31 Nivarox-FAR S.A. Spiralfeder einer Uhr
EP2796940A3 (de) * 2013-04-23 2016-05-04 Rolex Sa Uhrkomponente zur Aufnahme eines Organs durch Einpressen
JP6199114B2 (ja) * 2013-08-14 2017-09-20 シチズン時計株式会社 時計用ぜんまい装置
EP2952977A1 (de) * 2014-06-03 2015-12-09 Nivarox-FAR S.A. Uhrkomponente aus geschweißten Materialien
EP3106929A1 (de) * 2015-06-16 2016-12-21 Nivarox-FAR S.A. Werkstück mit verbesserter schweissoberfläche
WO2017163148A1 (fr) * 2016-03-23 2017-09-28 Patek Philippe Sa Geneve Oscillateur balancier-spiral pour piece d'horlogerie
EP3913441B1 (de) * 2020-05-22 2024-05-01 Patek Philippe SA Genève Oszillator für eine uhr

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Also Published As

Publication number Publication date
JP2009526215A (ja) 2009-07-16
CN101379445B (zh) 2010-09-29
DE602007002695D1 (de) 2009-11-19
WO2007090806A1 (fr) 2007-08-16
US20100061192A1 (en) 2010-03-11
ATE445177T1 (de) 2009-10-15
TW200801868A (en) 2008-01-01
EP1984794A1 (de) 2008-10-29
JP5243272B2 (ja) 2013-07-24
EP1818736A1 (de) 2007-08-15
CN101379445A (zh) 2009-03-04
KR20080092921A (ko) 2008-10-16
TWI374344B (en) 2012-10-11
HK1129468A1 (en) 2009-11-27
US8047705B2 (en) 2011-11-01

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