EP1097408B1 - Zeitanzeigevorrichtung mit mechanischer regulierung - Google Patents

Zeitanzeigevorrichtung mit mechanischer regulierung Download PDF

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Publication number
EP1097408B1
EP1097408B1 EP99927647A EP99927647A EP1097408B1 EP 1097408 B1 EP1097408 B1 EP 1097408B1 EP 99927647 A EP99927647 A EP 99927647A EP 99927647 A EP99927647 A EP 99927647A EP 1097408 B1 EP1097408 B1 EP 1097408B1
Authority
EP
European Patent Office
Prior art keywords
escapement
balance
time indicator
point
indicator according
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.)
Expired - Lifetime
Application number
EP99927647A
Other languages
English (en)
French (fr)
Other versions
EP1097408A1 (de
Inventor
Elmar Mock
Bonny Witteveen
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.)
Watch-U-License AG
Original Assignee
Watch-U-License AG
Watch U License AG
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 PCT/CH1999/000071 external-priority patent/WO2000004425A1/fr
Application filed by Watch-U-License AG, Watch U License AG filed Critical Watch-U-License AG
Publication of EP1097408A1 publication Critical patent/EP1097408A1/de
Application granted granted Critical
Publication of EP1097408B1 publication Critical patent/EP1097408B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • G04B17/20—Compensation of mechanisms for stabilising frequency
    • G04B17/28—Compensation of mechanisms for stabilising frequency for the effect of imbalance of the weights, e.g. tourbillon
    • G04B17/285—Tourbillons or carrousels

Definitions

  • the present invention describes a time indicator with a mechanical regulator according to the definition of claims.
  • This time indicator is particularly suitable for use in wristwatches. It is of constant-torque spiral-balance type, whose oscillation is maintained through an escapement by the displacement of a point of attaching a spiral spring at the moment of passing to the pulse point of the oscillator.
  • the present invention is in the family of so-called “swirl” time indicators.
  • the classic type of such a time indicator is represented by the "Bréguet tourbillon” from 1795.
  • a balance, its spiral spring and its exhaust are assembled inside a rotating cage, the speed of rotation of the cage is 60 dry. per turn. The whole cage revolves around a gear.
  • the present invention aims to compensate for balancing errors dynamic and static of the balance-spiral-exhaust system due to the problems geometry, manufacturing or due to asymmetrical beats of the spiral spring.
  • the present invention refers to a spiral-balance type time indicator at constant torque, the oscillation of which is maintained through an escapement the displacement of a point of attachment of a spiral spring at the time of the passage to the point pulse of the oscillator.
  • the point of attachment makes a circular motion around of the axis of the oscillator, resulting in the same rotation in the time of the whole balance-spiral-escapement. Most of the energy is transmitted by the movement of the attachment point.
  • An escape anchor leans directly on a bridge exhaust.
  • Fig. 1 shows a diagram of an indicator with a regulator of the spiral-balance type traditional.
  • the oscillation of the pendulum is maintained through the exhaust by an applied F pulse force on the oscillator G at the moment of its passage at the pulse point.
  • This transmission a force of impulse to the pendulum can be alternating or unidirectional according to the
  • the time pulse must be minimal.
  • the quality factor of the oscillator is directly proportional to the frequency of said oscillator. Plus the speed of passage of the oscillator is high at the pulse point, the more difficult it is to transmit a force of constant impulse.
  • the efficiency of the exhaust may, for example, vary from 20 to 50%.
  • any variation in the drive torque at the exhaust is directly transmitted to the oscillator and can have an influence on the amplitude of the oscillation. Dynamic and static balancing errors of the balance-spiral-exhaust assembly due to geometry, manufacturing or beat problems asymmetrical spiral spring are not compensated. For all these reasons, a careful particular is necessary when manufacturing and assembling the elements constituent of the time regulator to guarantee its reliability.
  • FIGS. 2 and 3 show a diagram of a regulator indicator according to the invention with displacement of the escapement wheel in two directions during the passage of the oscillator at its pulse point (FIG 2) and with displacement of the mobile d escape in one direction when the oscillator passes at its pulse point (Fig. 3).
  • the oscillator receives a pulse for example during each passage at its pulse point or once per half period according to FIG. 2.
  • FIG. 2 shows an interval of two periods of movement of the oscillator during which it receives four pulses, represented by four arrows.
  • the oscillator receives a pulse as it approaches and receives a pulse as it moves away from its pulse point. Taking into account the mass of the oscillator, this transmission of energy shown in FIG. 2 is asymmetrical.
  • FIG. 3 shows an interval of two periods of oscillator movement during which it receives two pulses, represented by two arrows.
  • the oscillator receives a pulse as it approaches or when it moves away from its pulse point. Taking into account the mass of the oscillator, this transmission of energy shown in FIG. 3 is symmetrical. It is of course possible without departing from the scope of the invention to choose other intervals to transmit a pulse to the oscillator. It is for example possible to transmit a first pulse to the oscillator during each second pass at its pulse point and to transmit a next pulse during a third pass at its pulse point and so on. Thus it is possible to vary the number of movements of the escape mobile per interval.
  • the position of the pulse point of the oscillator can be in any point of the sine curves.
  • the pulse point corresponds to the points of inflection or points 0 of the sinus curves, where the oscillator has a maximum speed. Since the speed of the oscillator at the inflection points of its sinus curve is relatively high, the detection of the oscillator (using a drive peg, see the description below) and the displacement of the point of attachment must to be done quickly. The efficiency of the exhaust is relatively low (of the order of 20%).
  • the oscillator may receive a pulse in both directions, in the direction in which it is approaching or in the direction in which it is moving away from a point of inflection.
  • the disturbances on the oscillator during such power transmission to the oscillator at the points of inflection are minimal. It is quite possible to assign any other point of the sine curves as pulse point of the oscillator. Thus it is possible, for example, that the pulse point corresponds to the maxima of the sinus curves, where the oscillator has a minimum speed. Since the speed of the oscillator at the maxima of its sine curve is low, the detection of the oscillator and the displacement of the point of attachment must not be done quickly. The disturbances on the oscillator during such transmission of energy to the oscillator at the maxima of the sinus curves are minimal. Oscillator detection is easy to perform. The efficiency of the exhaust is very high (of the order of 50%).
  • the pulse point corresponds to a point near the maxima of the sine curves, where the oscillator already has a low velocity.
  • the efficiency when transmitting energy to the oscillator at a point near the maxima of the sinus curves is still very high. Since the speed of the oscillator at the maxima of its sine curve is low, the detection of the oscillator and the displacement of the point of attachment must not be done quickly, the disturbances on the oscillator are minimal.
  • the energy is transmitted by the movement of the point of attachment and by a movement of the exhaust anchor.
  • the distribution of this transmission depends essentially on the angle of rotation of the point of attachment.
  • a first part of the energy (ranging from 10 to 100%) is transmitted by the movement of the point of attachment by giving an impetus to the oscillator.
  • a second part of the energy (varying from 0 to 90%) is transmitted by the movement of the escape anchor by giving an impulse on an ankle training (see the description below). It is thus possible to create a realization "Pure” transmitting 100% of the energy through the movement of the point of attachment or create “mixed” achievements that transmit 10 to 100% of energy through movement from the point of attachment and 0 to 90% of the energy by the movement of the escape anchor.
  • the transmission of energy is done by moving the point of attachment of the spiral spring.
  • This displacement X induces a potential energy in the spiral spring that will maintain the oscillation of the pendulum.
  • This maintenance energy is a function dependent on several parameters. It depends in particular on the dynamic characteristics and geometry of the spiral pendulum, the angular value of the displacement of the point attaching the spiral spring, the point of application in the cycle of oscillation of said displacement and the time required for this point of attachment to carry out its displacement.
  • figs. 4 to 6 show different views of a detail of an exemplary achievement of a regulator indicator according to the invention.
  • Fig. 4 shows a top view in section
  • Fig. 5 shows a side view and in section
  • FIG. 6 shows a side view and in section an enlarged detail.
  • an intermediate wheel 1 is provided to transmit a torque driving a barrel spring to an escape wheel 2.
  • a bridge 4 can serve as a bearing for said intermediate wheel 1.
  • the bridge 4 has an escape gear 10 of special shape, recessed and concentric with a balance 7, serving as support and limitation to a rotation of the mobile exhaust 2.
  • a first end of this spiral spring 6 is fixed by a fixing bolt 5 to movable exhaust 2. Another end of this spiral spring 6 is fixed by a point 11 to the pendulum 7.
  • the escapement wheel 2 has a bearing arranged concentrically with the balance wheel 7.
  • This mobile escapement 2 integrally drives an escape anchor 3 and the mounting stud 5 of the spiral spring 6.
  • the exhaust anchor 3 can tilt around its axis, allowing rotation of the escapement mobile 2 in a single meaning.
  • the escape anchor 3 makes a rocking motion to find its way through the teeth of the exhaust bridge 4.
  • the exhaust anchor 3 is for example arranged in a low manner, to pass below the teeth of the bridge 4.
  • the exhaust gear 10 of the exhaust bridge 4 serves as the point of support at the exhaust anchor 3 and limits the rotation angle of the mobile 2 exhaust through the exhaust anchor 3.
  • the exhaust anchor 3 builds directly on the exhaust bridge 4 and releases the movement directly rotating mobile exhaust 2.
  • the mounting stud 5 of the spiral spring 6 being integral with the escapement 2. transmits to the spiral spring 6 the angular movement of which it has just been animated, storing a potential energy in the spiral spring 6 which will initiate the oscillation balance wheel 7.
  • An ankle 8 driving the exhaust anchor 3 is fixed integrally on a balance pin plate 7.
  • This pin 8 is positioned in such a way that initiates the tilting of the escapement anchor 3 at the moment of the passage of the balance 7 at the pulse point of the oscillation.
  • Said tilting of the escape anchor 3 releases the point of support on said escape gear 10 of the escape anchor 3 and allows an angular rotation of the escapement mobile 2 limited by a neighbor point of support of the exhaust anchor 3 on the exhaust gear 10.
  • the peak fastening 5 of the spiral spring 6 being secured to the escape wheel 2.
  • Said bolt 5 transfers to the spiral spring 6 the angular movement of which it has just been animated, storing a potential energy in the spiral spring 6 which will maintain the oscillation of the balance 7.
  • the oscillation frequency of the balance can be adjusted displacing at least one adjustment mass 9 being arranged for example in a gouge Oval shape machined in the balance 7. This displacement modifies the moment of inertia of the balance-mass adjustment assembly and thereby the frequency of oscillation.
  • the rotational speed of the pendulum-spiral-exhaust system 2,6,7 is very fast and between 2 to 30 seconds per turn.
  • the skilled person, knowing this invention, can of course make other balance-spiral-exhaust assemblies having higher rotational speeds, for example between 1 to 2 seconds per revolution, or lower, for example between 30 to 60 seconds per revolution.
  • the value of the rotation angle of the escape wheel 2 depends on the direction of, passage of the anchor 8 of the exhaust anchor 3, the geometry of the anchor exhaust 3, the escape gear 10 and the angle of freedom of the anchor exhaust 3 on the mobile exhaust 2. It can be variable in the direction of passage of the balance 7 during transmission of energy at the time of its passage through pulse point allowing symmetrical or asymmetrical power transmission and it can be variable according to the number of displacements of the mobile escape 2 by oscillation interval of the pendulum.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Exhaust Silencers (AREA)
  • Micromachines (AREA)
  • Springs (AREA)

Claims (13)

  1. Zeitanzeiger des Typs Unruh mit Spiralfeder mit konstantem Drehmoment mit einer Spiralfeder und einer Unruh, gekennzeichnet durch eine Schwingung der Unruh (7), aufrechterhalten mithilfe eines Hemmrades (2) durch Verlagerung eines Befestigungspunktes der Spiralfeder (6) im Augenblick des Durchlaufs durch den Impulspunkt des Oszillators, was zu einer kreisförmigen Bewegung des Befestigungspunktes der Spiralfeder (6) um die Achse des Oszillators führt und durch diese eine Drehung während der Zeit der Gesamtheit Unruh-Spiralfeder-Hemmung (2,6,7) zur Folge hat.
  2. Zeitanzeiger nach Anspruch 1, gekennzeichnet durch eine kreisförmige Bewegung des Befestigungspunktes in eine Richtung der Spiralfeder (6) um die Achse des Oszillators.
  3. Zeitanzeiger nach Anspruch 1 oder 2, gekennzeichnet durch einen Befestigungspunkt der Spiralfeder (6), der von und mit dem Hemmrad (2) angetrieben ist, so dass er auf die Spiralfeder (6) eine Drehbewegung überträgt und so eine potenzielle Energie in der Spiralfeder (6) speichert, die es ermöglicht, die Schwingung der Unruh (7) aufrechtzuerhalten.
  4. Zeitanzeiger nach einem der Ansprüche 1 bis 3, gekennzeichnet durch die Tatsache, dass ein von 10 bis 100 % variabler Teil der Energie durch die Bewegung des Befestigungspunktes übertragen wird.
  5. Zeitanzeiger nach einem der Ansprüche 1 bis 4, gekennzeichnet durch die Tatsache, dass der Wert des Drehwinkels des Rades bei einer Energieübertragung im Augenblick seines Durchlaufs durch den Impulspunkt gemäß der Richtung des Durchlaufs der Unruh variabel ist und dadurch eine symmetrische oder asymmetrische Energieübertragung ermöglicht, und dass er gemäß der Anzahl der Bewegungen des Hemmrades (2) pro Schwingungsintervall der Unruh (7) variabel ist.
  6. Zeitanzeiger nach Anspruch 1, gekennzeichnet durch einen Hemmanker (3), der sich direkt auf eine Hemmbrücke (4) stützt.
  7. Zeitanzeiger nach einem der Ansprüche 1 bis 6, gekennzeichnet durch die Tatsache, dass ein von 0 bis 90 % variabler Teil der Energie durch die Bewegung des Hemmankers übertragen ist.
  8. Zeitanzeiger nach Anspruch 6, gekennzeichnet durch die Tatsache, dass der Hemmanker (3) um seine Achse schwingt, um eine Drehung des Hemmrades (2) freizusetzen, und dass der Hemmanker (3) sich direkt auf ein Hemmgetriebe (10) der Hemmbrücke (4) stützt, um den Drehwinkel des Hemmrades (2) zu begrenzen.
  9. Zeitanzeiger nach Anspruch 6 oder 8, gekennzeichnet durch einen Hemmzapfen (8) des Hemmankers (3), der mit der Unruh (7) ortsfest verbunden und so angeordnet ist, dass er die Kippbewegung des Hemmankers (3) im Augenblick des Durchlaufs der Unruh (7) durch den Impulspunkt der Schwingung einleitet.
  10. Zeitanzeiger nach einem der Ansprüche 1 bis 9, gekennzeichnet durch eine Umdrehungsgeschwindigkeit der Einheit Unruh-Spiralfeder-Hemmung (2, 6, 7) von 2 bis 30 Sekunden pro Umdrehung.
  11. Zeitanzeiger nach einem der Ansprüche 1 bis 10, gekennzeichnet durch die Tatsache, dass sich die Position des Impulspunktes des Oszillators auf jedem Punkt der Sinuskurven befinden kann.
  12. Zeitanzeiger nach einem der Ansprüche 1 bis 11, gekennzeichnet durch mindestens eine Kompensationsmasse (9) in Form einer ovalen Rille, die in die Unruh (7) eingearbeitet ist und es ermöglicht, die Schwingungsfrequenz der Unruh (7) zu regulieren, indem sie auf letzterer verschoben wird.
  13. Verwendung einer Zeitanzeige nach Anspruch 1 als Zeitanzeige zur mechanischen Regelung in einer Armbanduhr.
EP99927647A 1998-07-14 1999-07-14 Zeitanzeigevorrichtung mit mechanischer regulierung Expired - Lifetime EP1097408B1 (de)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
CH149898 1998-07-14
CH149898 1998-07-14
PCT/CH1999/000071 WO2000004425A1 (fr) 1998-07-14 1999-02-15 Indicateur de temps a regulation mecanique
WOPCT/CH99/00071 1999-02-15
PCT/CH1999/000321 WO2000004424A1 (fr) 1998-07-14 1999-07-14 Indicateur de temps a regulation mecanique

Publications (2)

Publication Number Publication Date
EP1097408A1 EP1097408A1 (de) 2001-05-09
EP1097408B1 true EP1097408B1 (de) 2005-05-04

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EP99927647A Expired - Lifetime EP1097408B1 (de) 1998-07-14 1999-07-14 Zeitanzeigevorrichtung mit mechanischer regulierung

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EP (1) EP1097408B1 (de)
JP (1) JP2002520626A (de)
AU (1) AU4495999A (de)
DE (1) DE69925128D1 (de)
WO (1) WO2000004424A1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100412728C (zh) * 2003-07-14 2008-08-20 精工电子有限公司 时计

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU2000222749A1 (en) * 2000-02-08 2001-08-20 Wacht-U-License Ag Mechanically regulated time indicator
CH704611B1 (de) 2011-03-07 2020-02-28 Montres Breguet Sa Hemmung und Oszillatorvorrichtung für eine mechanische Uhr.
EP2874020B1 (de) 2013-11-15 2016-10-26 Rolex Sa Reguliersystem für Uhrwerk

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100412728C (zh) * 2003-07-14 2008-08-20 精工电子有限公司 时计

Also Published As

Publication number Publication date
JP2002520626A (ja) 2002-07-09
AU4495999A (en) 2000-02-07
EP1097408A1 (de) 2001-05-09
DE69925128D1 (de) 2005-06-09
WO2000004424A1 (fr) 2000-01-27

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