EP1666990A2 - Vorrichtung zum Galoppschutz für Uhrenhemmung - Google Patents

Vorrichtung zum Galoppschutz für Uhrenhemmung Download PDF

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Publication number
EP1666990A2
EP1666990A2 EP05020554A EP05020554A EP1666990A2 EP 1666990 A2 EP1666990 A2 EP 1666990A2 EP 05020554 A EP05020554 A EP 05020554A EP 05020554 A EP05020554 A EP 05020554A EP 1666990 A2 EP1666990 A2 EP 1666990A2
Authority
EP
European Patent Office
Prior art keywords
balance
finger
spiral
bridge
locking arm
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
EP05020554A
Other languages
English (en)
French (fr)
Other versions
EP1666990A3 (de
EP1666990B1 (de
Inventor
Raymond Gabus
Thierry Conus
Alain Zaugg
Andrés Cabezas Jurin
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.)
Montres Breguet SA
Original Assignee
Montres Breguet 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
Priority claimed from EP04023667A external-priority patent/EP1645918A1/de
Application filed by Montres Breguet SA filed Critical Montres Breguet SA
Priority to EP20050020554 priority Critical patent/EP1666990B1/de
Publication of EP1666990A2 publication Critical patent/EP1666990A2/de
Publication of EP1666990A3 publication Critical patent/EP1666990A3/de
Application granted granted Critical
Publication of EP1666990B1 publication Critical patent/EP1666990B1/de
Active legal-status Critical Current
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
    • G04B43/00—Protecting clockworks by shields or other means against external influences, e.g. magnetic fields
    • G04B43/002—Component shock protection arrangements
    • 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
    • G04B17/20—Compensation of mechanisms for stabilising frequency
    • G04B17/26—Compensation of mechanisms for stabilising frequency for the effect of variations of the impulses

Definitions

  • the present invention relates to an anti-gallop device for a clock escapement, this escapement comprising, inter alia, a spiral composed of several turns and a rocker provided with at least one arm, the rocker being pivotally mounted between a plate and a bridge, said device comprising a finger fixed on the balance arm, at least one column next to which can pass the finger when the balance is moving, this column being secured to the bridge of said balance, and a locking arm fixed on the outer coil of the spiral, this locking arm being capable of being interposed between said column and said finger to prevent rotation of the balance beyond an angle exceeding its normal operating angle.
  • This device is implemented in so-called expansion escapements that are suitable for large timepieces such as marine chronometers. These parts are appreciated for their great precision, which is why it is very often used a relaxation exhaust itself renowned for its high accuracy. This exhaust, however, has an important defect, namely its sensitivity to shocks. Because of this, it is considered not to be well suited to wristwatches. Indeed a shock applied to the timepiece can cause the pendulum to rotate beyond a normal operating angle. It then occurs a gallop because two clearances and two pulses occur during the same alternation.
  • the present invention besides it obeys the generic definition in the first paragraph of this description, is remarkable in that the locking arm is a clamp attached to the outer coil of the spiral.
  • FIGS. 1 and 2 show only the elements necessary for the understanding of the invention namely a spiral 1 composed of several turns 9 and 10 and a rocker 2 provided with at least one arm 3 and pivotally mounted between a plate (not shown) and a bridge 4.
  • the detent escapement further comprises the following elements not shown in the drawings, namely: an escape wheel provided with generally pointed teeth which rest in turn on a pallet of rest, a rocker blocker recalled by a spring, this blocker carrying at its first end said pallet rest and at its second end a first actuating finger capable of being actuated by a second actuating finger carried by a plate integral with the balance, this plate also carrying a pallet of pulses adapted to receive pulses from the teeth of the escape wheel.
  • the rest pallet is disengaged from the tooth of the escape wheel and one and other teeth of the same wheel, acting on the impulse pallet gives a pulse to the pendulum.
  • the second actuating finger is arranged so as to actuate the first finger of the blocker only in a direction of rotation of the balance, that is to say during the first alternation of the oscillation then what takes place the impulse.
  • the first finger of the blocker is not actuated because the second finger carried by the plate is arranged for s' then hide from what no impulse occurs.
  • the anti-gallop device proposed in the work cited above and illustrated in Figures 1 and 2 of the present invention comprises a finger 5 fixed on the arm of the balance 2 and two columns 6 and 7 between which can pass the finger when the pendulum is moving, these columns being secured to the bridge 4 of the pendulum.
  • the device also comprises a locking arm 8 fixed on the outer turn 10 of the hairspring 1. As shown particularly in FIG. 2, this locking arm 8 comes to interpose between the columns 6 and 7 and the finger 5 to prevent the rotation of the balance 2 beyond an angle exceeding its normal angle of rotation.
  • the present invention is remarkable in that the locking arm 8 is a clamp attached to the outer turn 10 of the hairspring 1.
  • This method is perfectly adapted to small spirals that we meet in wristwatches for example.
  • the system envisaged does not require any complicated preparation and machining of the locking arm as is the case of the arm in the cited work.
  • the clamp can be placed on the outer turn without difficulty, at the desired location, without the need to put on the spiral and fix it on the latter as provided in the same book.
  • the clamp 8 can be in various forms including that which is illustrated in Figures 2 and 3.
  • the clamp has the shape of an X whose upper branches 11 and 12 are shaped to hug the spiral.
  • Figure 3 shows particularly that the upper branches are cut in the form of beveled jaws to tighten well on the spiral.
  • the lower branches 13 and 14 are arranged to serve as means for gripping and placing the clamp.
  • a tool specially designed for this gripping and positioning will allow gripping the gripper by its branches 13 and 14 and then bringing them together to elastically separate the upper branches 11 and 12 to install them on the hairspring. It will be understood that this clamp 8 can be made from a blade by simple stamping or chemical etching.
  • the two columns 6 and 7 integral with the bridge 4 could consist of two pins driven in this bridge.
  • the present invention however provides for simplifying this passage by proposing, as shown in Figures 1 and 2, a gantry 15 whose two columns 6 and 7 are connected by a cross member 16, this cross member carrying a rod 17 driven into the bridge 4 of the pendulum 2.
  • the device of the invention can be envisaged with a single column secured to the bridge 4.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Micromachines (AREA)
  • Springs (AREA)
  • Electromechanical Clocks (AREA)
EP20050020554 2004-10-05 2005-09-21 Vorrichtung zum Galoppschutz für Uhrenhemmung Active EP1666990B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP20050020554 EP1666990B1 (de) 2004-10-05 2005-09-21 Vorrichtung zum Galoppschutz für Uhrenhemmung

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP04023667A EP1645918A1 (de) 2004-10-05 2004-10-05 Vorrichtung zum Galoppschutz für Uhrenhemmung
EP20050020554 EP1666990B1 (de) 2004-10-05 2005-09-21 Vorrichtung zum Galoppschutz für Uhrenhemmung

Publications (3)

Publication Number Publication Date
EP1666990A2 true EP1666990A2 (de) 2006-06-07
EP1666990A3 EP1666990A3 (de) 2010-07-28
EP1666990B1 EP1666990B1 (de) 2011-12-28

Family

ID=36242499

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20050020554 Active EP1666990B1 (de) 2004-10-05 2005-09-21 Vorrichtung zum Galoppschutz für Uhrenhemmung

Country Status (1)

Country Link
EP (1) EP1666990B1 (de)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2450757A1 (de) * 2010-11-04 2012-05-09 Nivarox-FAR S.A. Antischwingungsvorrichtung für Uhrenhemmungsmechanismus
EP2690506A1 (de) 2012-07-25 2014-01-29 Nivarox-FAR S.A. Antischwingungsspirale für Uhr
WO2014072317A2 (fr) 2012-11-09 2014-05-15 Nivarox-Far S.A. Procédé de réalisation d'un élément flexible multistable
RU2545486C2 (ru) * 2009-11-13 2015-04-10 Ниварокс-Фар С.А. Резонатор часов с подпружиненным балансом

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US361850A (en) * 1886-06-12 1887-04-26 A Van Strait Regulator pin for watches
AT225624B (de) * 1961-04-04 1963-01-25 Alfred Frick Vorrichtung zur Sicherung der Spiralfeder von Unruhuhren gegen das Überspringen
DE1206811B (de) * 1962-04-11 1965-12-09 Lars Aadnesen Loege Sicherungsvorrichtung gegen das UEberspringen der Breguet-Spiralfeder bei Unruhuhren

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US361850A (en) * 1886-06-12 1887-04-26 A Van Strait Regulator pin for watches
AT225624B (de) * 1961-04-04 1963-01-25 Alfred Frick Vorrichtung zur Sicherung der Spiralfeder von Unruhuhren gegen das Überspringen
DE1206811B (de) * 1962-04-11 1965-12-09 Lars Aadnesen Loege Sicherungsvorrichtung gegen das UEberspringen der Breguet-Spiralfeder bei Unruhuhren

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2545486C2 (ru) * 2009-11-13 2015-04-10 Ниварокс-Фар С.А. Резонатор часов с подпружиненным балансом
EP2450757A1 (de) * 2010-11-04 2012-05-09 Nivarox-FAR S.A. Antischwingungsvorrichtung für Uhrenhemmungsmechanismus
US8556499B2 (en) 2010-11-04 2013-10-15 Nivarox-Far S.A. Anti-trip device for an escape mechanism
EP2690506A1 (de) 2012-07-25 2014-01-29 Nivarox-FAR S.A. Antischwingungsspirale für Uhr
US9016934B2 (en) 2012-07-25 2015-04-28 Nivarox—FAR S.A. Anti-trip balance spring for a timepiece
WO2014072317A2 (fr) 2012-11-09 2014-05-15 Nivarox-Far S.A. Procédé de réalisation d'un élément flexible multistable
US9310771B2 (en) 2012-11-09 2016-04-12 Nivarox-Far S.A. Pallet lever mechanism for timepiece escapement
US9317015B2 (en) 2012-11-09 2016-04-19 Nivarox-Far S.A. Timepiece anti-trip mechanism
US9778620B2 (en) 2012-11-09 2017-10-03 Nivarox-Far S.A. Method for creating a flexible, multistable element

Also Published As

Publication number Publication date
EP1666990A3 (de) 2010-07-28
EP1666990B1 (de) 2011-12-28

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