EP1605322A2 - Verbindung der Baueinheit Virole-Spiral an der Unruhwelle eines mechanischen Uhrwerks - Google Patents

Verbindung der Baueinheit Virole-Spiral an der Unruhwelle eines mechanischen Uhrwerks Download PDF

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Publication number
EP1605322A2
EP1605322A2 EP05405215A EP05405215A EP1605322A2 EP 1605322 A2 EP1605322 A2 EP 1605322A2 EP 05405215 A EP05405215 A EP 05405215A EP 05405215 A EP05405215 A EP 05405215A EP 1605322 A2 EP1605322 A2 EP 1605322A2
Authority
EP
European Patent Office
Prior art keywords
balance
spiral
ferrule
virole
connection
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Withdrawn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
EP05405215A
Other languages
English (en)
French (fr)
Other versions
EP1605322A3 (de
Inventor
Henri-Michel Guignard
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.)
Coredem SA
Original Assignee
Coredem 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 Coredem SA filed Critical Coredem SA
Publication of EP1605322A2 publication Critical patent/EP1605322A2/de
Publication of EP1605322A3 publication Critical patent/EP1605322A3/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Withdrawn legal-status Critical Current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
    • 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
    • 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

Definitions

  • the present invention relates to a method of connecting the balance spring and balance shaft for mechanical clockwork characterized by the fact that this connection is not obtained by driving the ferrule on the axis of the balance, the ferrule being axially free on this axis.
  • the sprung-balance pair constitutes the regulating organ, this assembly and a mechanical resonator oscillating at a frequency of, for example, 4 Hz.
  • the accuracy of the watch depends on its isochronism.
  • Figures 1, 2 and 3 represent by way of example a balance-spiral assembly of a traditional clockwork movement partially shown.
  • Figure 1 is a perspective view from above, Figure 2 a section and Figure 3 a view of the sprung balance assembly.
  • the section of a spiral has a height of about 0.12 mm and a thickness of about 0.03 mm. It is easy to understand the difficulties relating to the series production of spirals whose elastic constant of each piece produced is within a usable tolerance range and that the same is true for rockers whose inertia is also variable because of dimensional differences due to production. To meet the very precise criteria defined by theories relating to the tuning of mechanical watches; same reference as above, chapter 5, pages 88 to 142, professionals proceed by pairing: for the spirals, a measurement is made by putting each spiral in oscillation with a standard balance; this makes it possible to distribute the spirals in traditionally 20 classes of elastic constants.
  • the procedure is identical, after balancing, a measurement is made by comparison with a standard spiral; they are also divided into 20 classes of inertia. Then a sprung-balance pairing takes place and the hairspring becomes permanently attached to the pendulum which is attributed to it. At this stage, numerous and delicate operations have yet to be carried out so that the sprung-balance pair can fulfill its function of regulating the clock mechanism.
  • the assembly thus formed can then be assembled with the rest of the movement. during a complex operation called startup.
  • the present invention aims to simplify these procedures while facilitating the start-up and adjustment of motion accuracy watchmaking.
  • the invention is based on the fact that no reason justifies the necessity to drive the shell 4 on the axis of pendulum 2. Indeed it is sufficient that the ferrule 4 is radially integral with the balance shaft so that the assembly can operate.
  • the ferrule 4 and the balance shaft 2 each of a plate 10 and 10 'which allow the ferrule 4 to drive radially axis balance 2, and vice versa. This knowing that the ferrule 4 is free to slide axially on the axis 2 and that its position on the latter is defined by the rigidity of the hairspring 3.
  • This execution has the advantage, although not not eliminating the measuring operations respectively of the elastic constant of spirals and inertia of the pendulums, to facilitate assembly.
  • the spiral 3 can be assembled beforehand on the balance bridge 5, a centering and flattening said spiral can be achieved at this stage, the contribution of pendulum 1 being done during the assembly of everything with the watch movement.
  • this way of proceeding has the advantage of allowing the exchange of balance 1 and therefore adjusting the frequency without changing the geometry of the whole.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
  • Screw Conveyors (AREA)
  • Mechanical Coupling Of Light Guides (AREA)
  • Springs (AREA)
EP05405215A 2004-04-08 2005-03-01 Verbindung der Baueinheit Virole-Spiral an der Unruhwelle eines mechanischen Uhrwerks Withdrawn EP1605322A3 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH6162004 2004-04-08
CH6162004A CH697208A5 (fr) 2004-04-08 2004-04-08 Ensemble balancier-spiral pour mouvement d'horlogerie mécanique.

Publications (2)

Publication Number Publication Date
EP1605322A2 true EP1605322A2 (de) 2005-12-14
EP1605322A3 EP1605322A3 (de) 2006-07-12

Family

ID=35115907

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05405215A Withdrawn EP1605322A3 (de) 2004-04-08 2005-03-01 Verbindung der Baueinheit Virole-Spiral an der Unruhwelle eines mechanischen Uhrwerks

Country Status (2)

Country Link
EP (1) EP1605322A3 (de)
CH (1) CH697208A5 (de)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2063325A2 (de) 2007-11-20 2009-05-27 Richemont International S.A. Mechanisches uhrwerk
CN103376728A (zh) * 2012-04-20 2013-10-30 尼瓦洛克斯-法尔股份有限公司 固定由晶体硅制成的两个部件的方法
EP2874019A1 (de) 2013-11-15 2015-05-20 Richemont International S.A. Endkurve für eine Spiralfeder, die über ihr äußeres Ende angetrieben wird

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH703935B1 (en) * 2010-10-04 2017-04-13 Rolex Sa Balance-spiral regulating organ, watch movement and timepiece comprising such a regulating organ.

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE7112818U (de) * 1971-04-02 1973-04-19 Haas C Spiralfeder

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE7112818U (de) * 1971-04-02 1973-04-19 Haas C Spiralfeder

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
ERICH MARX: "Das Arbeiten an der Spiralfeder f}r die Pr{zisionsreglage" NEUE UHRMACHER-ZEITUNG, no. 23, 15 décembre 1965 (1965-12-15), pages 24-27, XP001219446 *

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2063325A2 (de) 2007-11-20 2009-05-27 Richemont International S.A. Mechanisches uhrwerk
EP2485096A1 (de) 2007-11-20 2012-08-08 Richemont International S.A. Mechanisches Uhrwerk
CN103376728A (zh) * 2012-04-20 2013-10-30 尼瓦洛克斯-法尔股份有限公司 固定由晶体硅制成的两个部件的方法
EP2874019A1 (de) 2013-11-15 2015-05-20 Richemont International S.A. Endkurve für eine Spiralfeder, die über ihr äußeres Ende angetrieben wird

Also Published As

Publication number Publication date
EP1605322A3 (de) 2006-07-12
CH697208A5 (fr) 2008-06-25

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