EP2503407B1 - Uhrwerk, das einen über die Bewegung gesteuerten Schnellauslöser umfasst - Google Patents

Uhrwerk, das einen über die Bewegung gesteuerten Schnellauslöser umfasst Download PDF

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Publication number
EP2503407B1
EP2503407B1 EP12160160.3A EP12160160A EP2503407B1 EP 2503407 B1 EP2503407 B1 EP 2503407B1 EP 12160160 A EP12160160 A EP 12160160A EP 2503407 B1 EP2503407 B1 EP 2503407B1
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EP
European Patent Office
Prior art keywords
eccentric
projecting portion
trailing wheel
pivoting
wheel set
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
EP12160160.3A
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English (en)
French (fr)
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EP2503407A3 (de
EP2503407A2 (de
Inventor
Eric Goeller
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
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Montres Breguet SA
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Filing date
Publication date
Priority claimed from EP11159387.7A external-priority patent/EP2503412B1/de
Application filed by Montres Breguet SA filed Critical Montres Breguet SA
Priority to EP12160160.3A priority Critical patent/EP2503407B1/de
Publication of EP2503407A2 publication Critical patent/EP2503407A2/de
Publication of EP2503407A3 publication Critical patent/EP2503407A3/de
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    • 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
    • G04B13/00—Gearwork
    • G04B13/002—Gearwork where rotation in one direction is changed into a stepping movement
    • G04B13/003—Gearwork where rotation in one direction is changed into a stepping movement with a step for each complete revolution
    • 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
    • G04B19/00—Indicating the time by visual means
    • G04B19/22—Arrangements for indicating different local apparent times; Universal time pieces
    • G04B19/23—Arrangements for indicating different local apparent times; Universal time pieces by means of additional hands or additional pairs of hands
    • 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
    • G04B19/00—Indicating the time by visual means
    • G04B19/24—Clocks or watches with date or week-day indicators, i.e. calendar clocks or watches; Clockwork calendars
    • G04B19/243—Clocks or watches with date or week-day indicators, i.e. calendar clocks or watches; Clockwork calendars characterised by the shape of the date indicator
    • G04B19/247—Clocks or watches with date or week-day indicators, i.e. calendar clocks or watches; Clockwork calendars characterised by the shape of the date indicator disc-shaped
    • G04B19/253—Driving or releasing mechanisms
    • G04B19/25333—Driving or releasing mechanisms wherein the date indicators are driven or released mechanically by a clockwork movement
    • G04B19/25373—Driving or releasing mechanisms wherein the date indicators are driven or released mechanically by a clockwork movement driven or released stepwise by an energy source which is released at determined moments by the clockwork movement

Definitions

  • the present invention generally relates to a complication timepiece movement comprising a motion-controlled instantaneous actuator and arranged to actuate a movement mechanism by abruptly pushing an element of said mechanism from an initial position, the actuator comprising a trailing wheel driven in rotation about its axis by the movement, an eccentric free to rotate coaxially with the trailing wheel and arranged to abut against the trailing wheel so as to be rotated by the latter, a hammer recalled by a spring against the periphery of the eccentric and arranged to cooperate with the curve of the eccentric so as to rotate the eccentric relative to the trailing wheel, a pivoting mobile having a projecting portion free to rotate coaxially with the trailing wheel, the pivoting mobile being arranged to be rotated by the eccentric, and the projecting portion of the swivel member being provided to urge said element of the mechanism to pass, so as to change suddenly, and virtually without transition, the state of a movement mechanism or display.
  • the present invention relates in particular to a movement comprising such an actuator
  • the patent application EP 2,503,412 filed March 23, 2011 describes a watch movement comprising a device with equation of walking time provided to drive a minute hand of true solar time in rotation coaxially with the hands of minutes and hours of civil time.
  • This time equation device comprises in particular a correction mechanism comprising a locking clip provided to maintain the minute hand of the solar time integral with the minute hand of the civil time.
  • the locking clamp is equipped with a control lever which is provided to move the jaws away from the clamp when it is actuated, and to let the clamp close when it stops being actuated.
  • the function of the clamp can be likened to that of a disengaging mechanism acting on the minute hand of solar time, a correction of the position of the latter being possible only when the jaws of the clamp are spaced apart.
  • a motion-controlled actuator is further provided to exert, at regular intervals, pressure on the control lever of the locking clamp of the walking time equation device.
  • the correction means can recall the latter to the angular position which is correct at this time. Then, after a few moments, the actuator stops actuating the control lever and the jaws of the clamp close again. From this moment, the angle between the minute hand of the solar time and the minute hand of the civil time is frozen until the next actuation.
  • a problem that arises more generally with timepieces complication relates to manipulations performed by the user including the delivery on time, or date, the timepiece . Indeed, if the user performs a time setting or other manipulation on the mechanism, while the complication is in operation, this manipulation may cause breakage. For this reason, the instructions for use of calendar watches in particular often indicate that no adjustment should be made between 10 pm and 1 am. A need is therefore felt to have an instantaneous actuator to minimize the time during which a complication is in operation. Particularly, with the aforementioned walking time equation device, there is a need to minimize the length of time the clip is open and the minute hand of the solar time disengaged.
  • Watch movements are known which comprise an instantaneous actuator and which correspond to the definition given in the preamble.
  • the patent FR 2 232 788 describes a watch movement comprising an instantaneous advance calendar mechanism.
  • This calendar mechanism is controlled by an instantaneous actuator arranged to provide advance jump indication of the date and that of the day of the week.
  • the actuator described in this document is intended to trigger almost instantaneously the jump of the calendar from one day to the next.
  • This actuator is therefore not suitable for controlling a transient actuation, that is to say a time-limited actuation and in which the actuated mechanism suddenly resumes its initial position.
  • the document FR 2,165,705 discloses an instant date and date mechanism comprising a driving wheel on which are mounted free rotation of the drive members of a date ring and a star, coupled to the drive wheel by a drive finger.
  • a cam actuated by a pusher can move the drive members to advance the date ring and the star of a step.
  • the document EP 1 746 470 describes a date mechanism comprising a date mobile, a driving wheel, an instant jump cam, a finger in kinematic connection with the cam for driving the date wheel.
  • Such mechanisms do not correspond to an actuator arranged to actuate a mechanism by pushing a control element of said mechanism from an initial position, and to stop actuating said mechanism when said control element is returned to its initial position.
  • An object of the present invention is therefore to overcome the disadvantages just mentioned.
  • the present invention achieves this goal by providing a watch movement comprising a movement-controlled instant actuator and which is in accordance with the appended claim 1.
  • the duration of the period during which the actuator pushes the element of the mechanism to be actuated is not determined by the speed of rotation of the trailing wheel, but by a double relaxation.
  • the first one relaxation is the fact of the spring that reminds the hammer against the periphery of the eccentric, while the second trigger involves said restoring force.
  • the clockwork of the present example includes a calendar mechanism and a walking time equation device. Note, however, that the present invention is not limited only to such watch movements. On the contrary, the present invention generally relates to complicated watch movements.
  • the walking time equation device also comprises a pivoted lever 103.
  • This lever is subjected to a return action of a spring (not shown) tending to apply the probe 104 forming the distal end of the lever. against the periphery of the time equation cam 101.
  • the pivoted lever 103 is rotationally integral with a first gear sector 105 which constitutes the first element of a gear wheel actuated by the time equation cam 101.
  • first gear sector, the gear train comprises a toothed wheel 111 pivotally mounted concentrically to the switch of the movement, and a first mobile 107, formed of a pinion and a toothed sector, and a second mobile 109 also formed of a pinion and a toothed sector.
  • the first and the second mobile are interposed between the first toothed sector and the toothed wheel 111.
  • the first toothed sector 105 meshes with the pinion of the first mobile 107
  • the toothed sector of the first mobile meshes with the pinion of the second mobile 109
  • the toothed sector of the second mobile meshes with the toothed wheel 111.
  • the gear ratio of the gear is selected according to the dimensions of the equation cam of the time 101, so that a variation of one minute of the Equation of time is ultimately translated by a rotation of 6 ° degrees of the toothed wheel 111. It will therefore be understood, in particular, that the angular position of the wheel 111 is representative of the difference between the civil time and the solar time.
  • the movement further comprises a mobile 125 whose axis 126 carries the minute hand of the civil time (not shown).
  • the mobile 125 will be called hereinafter "the false floor”.
  • the walking time equation device further comprises a gun 113 freely fitted on the axis 126 and carrying the minute hand of the solar time (not shown).
  • a locking clamp 121 surrounds the barrel 113. This clamp is articulated on a pivot 122 which is fixed in an eccentric position on the board of the false floor 125.
  • a double spring 120 recalls the jaws of the locking clamp against the outside of the barrel 113.
  • a small T-shaped lever 124 is pivoted at the base of the T on the board of the false floor 125.
  • the small lever 124 is arranged in such a way that a force exerted on a first end 126 of the T bar lead the other end 128 to be inserted between the jaws of the clamp 121 and serve as a wedge to spread them. It will be understood that when the jaws of the locking clamp 121 are closed, the barrel 113 is integral with the false floor 125 which drives it in rotation. Thus, the angle made by the minute hand of the solar time with the minute hand of the civil time can not be modified as long as no force is exerted on the end 126 of the small control lever 124.
  • the walking time equation device further comprises a core 119 which is driven on the barrel 113 and a time equation lever 115 whose end is biased against the periphery of the core by a spring 123.
  • a radial arm referenced 112 is fixed on the toothed wheel 111. It can be seen on the figure 2 that the arm 112 extends first radially beyond the teeth of the false floor 125, to then curve upwards and end approximately opposite the heart 119. The end of the arm 112 form a small off-center support 116, and it will be understood that the function of the toothed wheel 111 with its arm 112 is that of a rotating frame.
  • the small support 116 serves both anchor point for the spring 123 and pivot point for the time equation lever 115.
  • the time equation lever 115 carries at its end a roll 117 and that this roll is pressed against the periphery of the heart 119 by the spring 123.
  • the force exerted by the roller 117 on the heart has a tangential component which tends to recall the heart in direction of its stable equilibrium angular position, or in other words, towards the position where the roller is in the tick of the heart.
  • the walking time equation device is associated with an instantaneous actuator specifically covered by the present invention. This instantaneous actuator which will be described in detail later is driven by the movement.
  • the operation of the walking time equation device will now be described.
  • the barrel 113 and the core 119 are integral with the false floor 125 which drives them in rotation.
  • the instantaneous actuator is arranged to press the end 126 of the small lever 124 once every 3 hours. The instantaneous actuator thus forces the jaws of the locking clamp 121 to open and release their pressure on the barrel 113. Released by the clamp, the barrel pivots driven by the core until the roller 117 s' immobilize in the check of the heart.
  • the position occupied by the minute hand of the solar time at this precise moment depends on the angular position of the frame 111 and therefore of that of the time equation cam 101.
  • the actuator instantaneous stops pressing the control lever 124 and the jaws of the clamp 121 are closed on the barrel 113 freezing for the next 3 hours the angle between the two minute hands.
  • the angle between the two minute hands at the instant when the clamp 121 closes on the barrel 113 is determined, on the one hand, by the position of the equation cam of the time, and on the other hand, by the position occupied by the minute hand of the civil time at this moment.
  • the position occupied by the minute hand of the civil time, at the moment when the locking means are closed again, is therefore critical for the operation of a device with a walking time equation such as that of the present example.
  • the instantaneous actuator comprises a trailing wheel 205, a pivoting mobile having a protruding portion, or finger, 213 ( figure 3 ) which is mounted idly on the axis of the trailing wheel, an eccentric 207 ( figure 4 ) which is also mounted idle on the axis of the trailing wheel and, on the opposite side with respect to the finger, a hammer, or lever, 217 terminating in a wheel 219 ( Figures 5 and 6 ), a spring (not shown) arranged to recall the wheel of the hammer against the periphery of the eccentric, and finally a rocker 209.
  • the drag wheel 205 is driven by the timer of the motion (not shown) at the substantially constant rate of one revolution every 3 hours.
  • the trailing wheel will henceforth be called "the 3-hour wheel”.
  • the wheel 205 could be driven at any speed. Note, however, that for the time equation device of this example to work, the wheel 205 must perform exactly one revolution in N hours, the parameter "N" being any integer greater than or equal to 1. It will be understood that On the other hand, the driveline that drives the trailing wheel does not necessarily go through the timer.
  • the shape of the eccentric 207 is doubly asymmetrical.
  • the distance separating its periphery from its center of rotation is not constant, and on the other hand, it is also observed that the vertex of the curve (that is to say the point the farther from the center of rotation) is not situated opposite the birth of the curve (that is, from the point closest to the center of rotation).
  • the radius leading to the top of the curve (referenced u) ( figure 7 ) and the radius leading to the birth of the curve (referenced v) thus share the area enclosed by the curve in two unequal sectors.
  • the low tilt sector 223 The largest of these areas will be referred to hereafter as the low tilt sector 223, and the smaller one will be called the high tilt sector 225.
  • the board of the 3 o'clock wheel 205 is pierced with an oblong 206 which defines an arc of a circle, and that the eccentric 207 carries a pin 215 which is arranged to slide in this oblong.
  • the presence of the oblong allows the eccentric to pivot relative to the 3-hour wheel within a sector whose extent is limited by the two ends of the oblong.
  • the pin 215 is shown abutting against one end of the oblong 206.
  • the 3 hour wheel 205 drives the eccentric 207 in rotation through the pin.
  • the rotation of the eccentric further constrains the wheel 219 to roll on the periphery of the latter.
  • the direction of rotation of the wheel 3 hours is such that the wheel rises along the curve, away from the center of rotation, when it crosses the low inclination sector 223, and goes down again, recalled by the spring (not shown) in the direction of the center of rotation, as it passes through the high inclination sector 225.
  • the length of the pin 215 is such that its end protrudes from the oblong 206, so that it can push the finger 213.
  • the finger 213 is shown abutting against the pin.
  • the eccentric 207 drives the finger 213 in rotation through the pin.
  • the instantaneous actuator is arranged so that the finger meets the rocker approximately at the moment when the wheel 219 begins to roll down the inclined periphery of the eccentric.
  • the spring will preferably be arranged to exert as strong a thrust as possible, so that the pivoting movement of the eccentric and the finger is very fast.
  • the actuator of this example is said to be "instantaneous". Indeed, according to the invention, the duration of the period during which the actuator presses on the lever 124 is not determined by the speed of rotation of the trailing wheel, but by a double trigger involving the first powerful hammer return spring 217 and then the double spring 120. On the other hand, as explained above, the instantaneous actuator also determines when the blocking means release the barrel 113 and when they block it again. The revolutions of the trailing wheel 205 taking exactly 3 hours, the position of the minute hand of the civil time at the moment when the locking means are actuated is always the same.
  • the walking time equation device is preferably arranged so that the minute hand of the civil time occupies the "12 o'clock" position at the moment when the locking means once again block the barrel after leaving it free. moments.
  • rocker 209 is not essential to the invention. Indeed, even if, in the present example, the protruding part (the finger) 213 pushes back the element of the mechanism (the control lever 124 of the equation device of the walking time) via the rocker arm 209, the protruding part could just as easily come into contact with the element of the mechanism to repel it.

Claims (10)

  1. Uhrwerk, umfassend einen Augenblicksantrieb, der durch das Werk betätigt wird und dafür ausgelegt ist, einen Mechanismus des Werks zu betätigen, indem ein Betätigungselement (124) des Mechanismus aus einer Anfangsposition momentan zurückgedrängt wird, wobei der Antrieb umfasst: ein Schlepprad (205), das durch das Werk um seine Achse in Drehung versetzt wird, einen Exzenter (207), der sich koaxial zu dem Schlepprad frei drehen kann und dafür ausgelegt ist, gegen das Schlepprad gedrückt anzuliegen, derart, dass er durch dieses Letztere in Drehung versetzt wird, einen Hammer (217), der gegen den Umfang des Exzenters mittels einer Feder zurückgefahren wird und dafür ausgelegt ist, mit der Exzenterkurve zusammenzuwirken, derart, dass der Exzenter in Bezug auf das Schlepprad gedreht wird, und ein Drehteil, das einen vorstehenden Teil (213) aufweist, der sich koaxial zu dem Schlepprad frei drehen kann, wobei das Drehteil dafür ausgelegt ist, durch den Exzenter in Drehung versetzt zu werden, und wobei der vorstehende Teil (213) des Drehteils vorgesehen ist, das Betätigungselement des Mechanismus in die Bahn zurückzudrängen, dadurch gekennzeichnet, dass der vorstehende Teil (213) des Drehteils dafür ausgelegt ist, das Betätigungselement (124) des Mechanismus entgegen einer Rückstellkraft vorübergehend von seiner Anfangsposition zu verdrängen, dass die Rückstellkraft vorgesehen ist, um anschließend das Betätigungselement des Mechanismus in seine Anfangsposition zurückzustellen, und dass das Drehteil in Bezug auf den Exzenter um einen begrenzten Winkel frei drehbar ist, damit der vorstehende Teil (213) durch Drehen des Drehteils in Bezug auf den Exzenter (207) ausgeworfen wird, um die Betätigung des Mechanismus durch den Antrieb zu beenden, wenn das Betätigungselement des Mechanismus durch die Rückstellkraft in seine Anfangsposition zurückgestellt worden ist.
  2. Uhrwerk nach Anspruch 1, dadurch gekennzeichnet, dass der Hammer (217) in einer Rolle (219) endet, die dafür ausgelegt ist, auf dem Umfang des Exzenters zu rollen.
  3. Uhrwerk nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass der Exzenter (207) durch das Schlepprad (205) über einen Zapfen (215), der dafür ausgelegt ist, in einem Langloch (206) zu gleiten, angetrieben wird, derart, dass dem Exzenter ermöglicht wird, sich in Bezug auf das Schlepprad um einen bestimmten Winkel frei zu drehen, wobei ein Ende des Langlochs und der Zapfen außerdem dafür ausgelegt sind, gegenseitig in Anschlag gelangen zu können.
  4. Uhrwerk nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass das Drehteil, das einen vorstehenden Teil (213) aufweist, durch den Exzenter (207) über einen Zapfen (215) angetrieben wird, wobei der vorstehende Teil und der Zapfen dafür ausgelegt sind, gegenseitig in Anschlag gelangen zu können.
  5. Uhrwerk nach den Ansprüchen 3 und 4, dadurch gekennzeichnet, dass der Exzenter (207) durch das Schlepprad (205) über denselben Zapfen (215) angetrieben wird, der auch das Drehteil, das den vorstehenden Teil (213) aufweist, antreibt.
  6. Uhrwerk nach Anspruch 3, dadurch gekennzeichnet, dass das Langloch (206) in der Fläche des Schlepprades (205) ausgebildet ist und dass der Zapfen (215) mit dem Exzenter (207) fest verbunden ist.
  7. Uhrwerk nach Anspruch 4, dadurch gekennzeichnet, dass der vorstehende Teil in Form eines Fingers (213) ausgebildet ist und dass der Zapfen (215) mit dem Exzenter fest verbunden ist.
  8. Uhrwerk nach den Ansprüchen 6 und 7, dadurch gekennzeichnet, dass der Exzenter (207) durch das Schlepprad (205) über denselben Zapfen (215) angetrieben wird, der auch den Finger (213) des Drehteils antreibt.
  9. Uhrwerk nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass das Drehteil, das einen vorstehenden Teil (213) aufweist, und der Exzenter (207) beiderseits des Schlepprades (205) angeordnet sind.
  10. Uhrwerk nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass der Augenblickantrieb ferner einen Kipphebel (209) umfasst und dass der vorstehende Teil (213) des Drehteils dafür ausgelegt ist, das Betätigungselement (124) eines Mechanismus über den Kipphebel zurückzudrängen.
EP12160160.3A 2011-03-23 2012-03-19 Uhrwerk, das einen über die Bewegung gesteuerten Schnellauslöser umfasst Active EP2503407B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP12160160.3A EP2503407B1 (de) 2011-03-23 2012-03-19 Uhrwerk, das einen über die Bewegung gesteuerten Schnellauslöser umfasst

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP11159387.7A EP2503412B1 (de) 2011-03-23 2011-03-23 Timepiece movement comprising a device with running time equation
EP11159422 2011-03-23
EP12160160.3A EP2503407B1 (de) 2011-03-23 2012-03-19 Uhrwerk, das einen über die Bewegung gesteuerten Schnellauslöser umfasst

Publications (3)

Publication Number Publication Date
EP2503407A2 EP2503407A2 (de) 2012-09-26
EP2503407A3 EP2503407A3 (de) 2016-03-30
EP2503407B1 true EP2503407B1 (de) 2017-06-28

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US (1) US8953415B2 (de)
EP (1) EP2503407B1 (de)
JP (1) JP5346103B2 (de)
CN (1) CN102692865B (de)
HK (1) HK1177003A1 (de)

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EP2820486B1 (de) * 2012-02-27 2016-02-17 Blancpain SA Universeller laufzeitgleichungsmechanismus und verfahren zum einstellen eines solchen mechanismus
EP2778800B1 (de) * 2013-03-12 2016-02-24 Blancpain SA. Mechanismus einer universellen fortschreitenden Zeitgleichung und Regulierungsverfahren eines solchen Mechanismus
EP3007012B1 (de) 2014-10-07 2017-08-16 The Swatch Group Research and Development Ltd. Uhr, die den Sonnenauf- und -untergang an jedem Punkt der Erde anzeigen kann
EP3270236B1 (de) * 2016-07-15 2020-02-12 Montres Breguet S.A. Mechanismus der zeitgleichung, der durch eine differenzialvorrichtung gesteuert wird
EP3339971B1 (de) * 2016-12-23 2019-08-28 The Swatch Group Research and Development Ltd Uhr, die mit einer tag/nachtanzeige ausgestattet ist, die die jahreszeitlichen änderungen berücksichtigt
EP3339972B1 (de) * 2016-12-23 2020-01-01 The Swatch Group Research and Development Ltd Uhr, die mit einer tag-/nachtanzeige ausgestattet ist und die jahreszeitlichen änderungen berücksichtigt
EP3671366B1 (de) 2018-12-21 2022-04-20 ETA SA Manufacture Horlogère Suisse Vorrichtung zur anzeige einer folge von periodischen ereignissen, die einen jahreszyklus bilden, und eine solche anzeigevorrichtung umfassende uhr

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EP2407833B1 (de) * 2010-07-14 2013-03-13 Breitling AG Spielausgleichsmechanismus für Uhrwerk

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HK1177003A1 (en) 2013-08-09
US20120243388A1 (en) 2012-09-27
US8953415B2 (en) 2015-02-10
CN102692865A (zh) 2012-09-26
CN102692865B (zh) 2014-11-12
JP2012202998A (ja) 2012-10-22
JP5346103B2 (ja) 2013-11-20
EP2503407A3 (de) 2016-03-30
EP2503407A2 (de) 2012-09-26

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