EP2508953A2 - Chronographenmechanismus - Google Patents

Chronographenmechanismus Download PDF

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Publication number
EP2508953A2
EP2508953A2 EP12002080A EP12002080A EP2508953A2 EP 2508953 A2 EP2508953 A2 EP 2508953A2 EP 12002080 A EP12002080 A EP 12002080A EP 12002080 A EP12002080 A EP 12002080A EP 2508953 A2 EP2508953 A2 EP 2508953A2
Authority
EP
European Patent Office
Prior art keywords
mobile
chronograph
chronograph mechanism
mechanism according
board
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
EP12002080A
Other languages
English (en)
French (fr)
Other versions
EP2508953B1 (de
EP2508953A3 (de
Inventor
Alain Girardbille
Hugo Lopez
Demetrio Cabiddu
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.)
Montblanc Montre SA
Original Assignee
Richemont International 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 Richemont International SA filed Critical Richemont International SA
Publication of EP2508953A2 publication Critical patent/EP2508953A2/de
Publication of EP2508953A3 publication Critical patent/EP2508953A3/de
Application granted granted Critical
Publication of EP2508953B1 publication Critical patent/EP2508953B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • G—PHYSICS
    • G04—HOROLOGY
    • G04F—TIME-INTERVAL MEASURING
    • G04F7/00—Apparatus for measuring unknown time intervals by non-electric means
    • G04F7/04—Apparatus for measuring unknown time intervals by non-electric means using a mechanical oscillator
    • G04F7/08—Watches or clocks with stop devices, e.g. chronograph
    • G04F7/0866—Special arrangements
    • G04F7/088—Special arrangements with display of fraction of seconds, e.g. foudroyante
    • 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
    • G04B35/00—Adjusting the gear train, e.g. the backlash of the arbors, depth of meshing of the gears
    • G—PHYSICS
    • G04—HOROLOGY
    • G04F—TIME-INTERVAL MEASURING
    • G04F7/00—Apparatus for measuring unknown time intervals by non-electric means
    • G—PHYSICS
    • G04—HOROLOGY
    • G04F—TIME-INTERVAL MEASURING
    • G04F7/00—Apparatus for measuring unknown time intervals by non-electric means
    • G04F7/04—Apparatus for measuring unknown time intervals by non-electric means using a mechanical oscillator
    • G04F7/06—Apparatus for measuring unknown time intervals by non-electric means using a mechanical oscillator running only during the time interval to be measured, e.g. stop-watch
    • G—PHYSICS
    • G04—HOROLOGY
    • G04F—TIME-INTERVAL MEASURING
    • G04F7/00—Apparatus for measuring unknown time intervals by non-electric means
    • G04F7/04—Apparatus for measuring unknown time intervals by non-electric means using a mechanical oscillator
    • G04F7/08—Watches or clocks with stop devices, e.g. chronograph
    • G—PHYSICS
    • G04—HOROLOGY
    • G04F—TIME-INTERVAL MEASURING
    • G04F7/00—Apparatus for measuring unknown time intervals by non-electric means
    • G04F7/04—Apparatus for measuring unknown time intervals by non-electric means using a mechanical oscillator
    • G04F7/08—Watches or clocks with stop devices, e.g. chronograph
    • G04F7/0842—Watches or clocks with stop devices, e.g. chronograph with start-stop control mechanisms
    • G04F7/0847—Watches or clocks with stop devices, e.g. chronograph with start-stop control mechanisms with column wheel
    • G—PHYSICS
    • G04—HOROLOGY
    • G04F—TIME-INTERVAL MEASURING
    • G04F7/00—Apparatus for measuring unknown time intervals by non-electric means
    • G04F7/04—Apparatus for measuring unknown time intervals by non-electric means using a mechanical oscillator
    • G04F7/08—Watches or clocks with stop devices, e.g. chronograph
    • G04F7/0842—Watches or clocks with stop devices, e.g. chronograph with start-stop control mechanisms
    • G04F7/0857—Watches or clocks with stop devices, e.g. chronograph with start-stop control mechanisms with single push-button or actuation member for start-stop and reset
    • G—PHYSICS
    • G04—HOROLOGY
    • G04F—TIME-INTERVAL MEASURING
    • G04F7/00—Apparatus for measuring unknown time intervals by non-electric means
    • G04F7/04—Apparatus for measuring unknown time intervals by non-electric means using a mechanical oscillator
    • G04F7/08—Watches or clocks with stop devices, e.g. chronograph
    • G04F7/0866—Special arrangements
    • G—PHYSICS
    • G04—HOROLOGY
    • G04F—TIME-INTERVAL MEASURING
    • G04F7/00—Apparatus for measuring unknown time intervals by non-electric means
    • G04F7/04—Apparatus for measuring unknown time intervals by non-electric means using a mechanical oscillator
    • G04F7/08—Watches or clocks with stop devices, e.g. chronograph
    • G04F7/0866—Special arrangements
    • G04F7/0871—Special arrangements with multiple chronograph functions, i.e. to count multiple running times
    • G—PHYSICS
    • G04—HOROLOGY
    • G04F—TIME-INTERVAL MEASURING
    • G04F7/00—Apparatus for measuring unknown time intervals by non-electric means
    • G04F7/04—Apparatus for measuring unknown time intervals by non-electric means using a mechanical oscillator
    • G04F7/08—Watches or clocks with stop devices, e.g. chronograph
    • G04F7/0866—Special arrangements
    • G04F7/0876—Split-time function, e.g. rattrappante
    • G—PHYSICS
    • G04—HOROLOGY
    • G04F—TIME-INTERVAL MEASURING
    • G04F7/00—Apparatus for measuring unknown time intervals by non-electric means
    • G04F7/04—Apparatus for measuring unknown time intervals by non-electric means using a mechanical oscillator
    • G04F7/08—Watches or clocks with stop devices, e.g. chronograph
    • G04F7/0866—Special arrangements
    • G04F7/0895—Special arrangements with a separate barrel for the chronograph functions
    • 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
    • G04B19/04—Hands; Discs with a single mark or the like

Definitions

  • the present invention relates to chronograph mechanisms and more particularly to chronograph mechanisms for equipping mechanical timepieces.
  • the object of the present invention is the production of a fully mechanical chronograph mechanism making it possible to measure durations with a high precision and preferably a precision greater than one hundredth of a second, for example to one thousandth of a second, while maximizing the reserve of mechanism and avoiding premature wear of its components.
  • the Tag Heuer brand presented a mechanical chronograph concept (called the Mikrotimer Flying 1000) known to measure and display thousandths of a second.
  • this chronograph mechanism comprises a spiral-shaped regulator that oscillates at a frequency of 500 Hz, or 3'600'000 vibrations per hour.
  • the chronograph display includes two central hands. The first needle performs 10 rotations per second, indicating the thousandths and hundredths of a second on a scale of 100 graduations over 360 °. A second, smaller central hand indicates minutes and twelfths of a minute on a 150-second scale.
  • This chronograph mechanism is however very complicated because it deviates from the conventional clock regulator in the form of sprung balance. Also, because of the high frequency of the oscillator, the chronograph mechanism is energy intensive reason why it has a power reserve of only 150 seconds. This high frequency can also cause premature wear of the components of the chronograph mechanism. Moreover, since the display of the chronograph counter is not made entirely on a decimal basis, it is difficult for the user to easily and immediately read the elapsed time.
  • the subject of the present invention is a chronograph mechanism comprising a control device and a chronograph gear train intended to be driven directly or mediately by a barrel, this chronograph wheel comprising a seconds counter wheel and a chronograph wheel.
  • this chronograph mechanism also comprising at least one indicator displaying the seconds and the first fractions of a second of the measured duration;
  • the chronograph train comprises an additional mobile of a second precision corresponding to a second fraction of a second driven by the mobile of the first fraction of a second by means of a mobile game catch; and in that the chronograph mechanism further comprises an indicator of the second fractions of a second, less than the first fractions of a second, of the measured duration actuated by said additional mobile.
  • the present invention also relates to a mechanical timepiece, for example a pocket watch or a wristwatch, provided with a chronograph mechanism according to that described in claim 1.
  • the present chronograph mechanism comprising a control device with one or two pushers for controlling the functions "start”, “stop”, and “reset” and a chronograph train driving the various counters, minutes, seconds counters etc.
  • this chronograph mechanism can be provided to equip either a conventional timepiece, in this case the chronograph wheel is driven mediately, or indirectly by the engine cylinder of the timepiece, or a timepiece such as as described for example in the document CH 697433 in this case the chronograph wheel is driven directly by a chronograph cylinder separate from the engine cylinder of the timepiece.
  • the present chronograph mechanism is distinguished from the existing chronograph mechanisms in that it is arranged to be able to measure and display durations with a first precision corresponding to a first fraction of a second (for example, to one hundredth of second) and with a second precision corresponding to a second fraction of a second smaller than the first (for example, to thousandth of a second), the mobile used to count the first fractions controlling an additional mobile used to count the second fractions by through a mobile catch-up.
  • the mechanism can include a regulating member oscillating at a frequency corresponding to the first accuracy without the need for a regulating member oscillating at a higher frequency.
  • a preferred embodiment of the chronograph mechanism makes it possible to measure durations with a precision of one thousandth of a second on the basis of a hundredth of a second counter.
  • the present chronograph mechanism differs from known chronograph mechanisms in that its gear and control device have novel and original features.
  • the chronograph wheel of the present chronograph mechanism is illustrated in its entirety more particularly to figures 3 and 4 .
  • This chronograph wheel comprises a seconds counter mobile 1 comprising, mounted on an axis 1.1 and secured thereto, a board 1.2, a pinion 1.3 and a reset heart 1.4.
  • This seconds counter mobile 1 is intended to be kinematically connected by its pinion 1.3 directly to a chronograph mechanism cylinder or mediately indirectly to the engine cylinder of a timepiece.
  • This chronograph wheel also comprises a small medium wheel 2 whose pinion 2.1 is engaged with the toothing of the board 1.2 of the seconds counter mobile 1.
  • the board 2.2 of this small medium mobile 2 meshes with the pinion 3.1.
  • This mobile of hundredth 3 comprises a board 3.2.
  • the multiplication ratios of this chronograph wheel are such that if the mobile counter seconds 1 is driven at a rate of one revolution per minute, the hundredth mobile 3 performs one revolution per second.
  • the essential and new feature of the present chronograph wheel lies in the fact that it still includes a game-changing wheel 4 connecting cinematically the board 3.2 of the mobile hundredth pinion 5.1 of an additional mobile or fast 5.
  • This additional mobile 5 (sometimes called a thousandths mobile) has an axis 5.2 secured to the pinion 5.1 and a board 5.3 of this additional mobile or fast.
  • the multiplication ratio between the board 3.2 of the hundredth mobile and the board 5.3 of the thousandth mobile is such that this additional mobile performs one revolution in one-tenth of a second, or ten revolutions per second, in the illustrated example.
  • the plate 5.3 of the additional mobile 5 has a toothing of one hundred teeth in the illustrated example.
  • the axis 5.2 of the additional mobile 5 carries a needle 6 cooperating with a graduation 7 of the dial, this graduation 7 having a hundred divisions corresponding to thousandths of a second.
  • this display 6, 7 makes it possible to display the hundredths and thousandths of a second as can be seen on the figures 1 and 7 .
  • a center hand 16 indicates the hundredths (and tenths) of a second
  • a two-headed hand 17 indicates the seconds at the 6H position of the dial
  • a hand 18 indicates the minutes.
  • the figures 5 and 6 illustrate a particular embodiment of the gaming catch-up mobile 4.
  • This reclining gaming device 4 comprises a central axis 4.1 secured to a support pinion 4.2 and a support board 4.3.
  • the free pinion 4.4 has dimensions and a number of teeth identical to the support pinion 4.2 as well as the free board 4.5 has dimensions and a number of teeth identical to the support board 4.3.
  • the free pinion 4.4 is secured to a balance 4.6 while the free board 4.5 is secured to a hub 4.7.
  • a spiral spring 4.8 is fixed by its inner end to the hub 4.7 and its outer end to the balance 4.6.
  • the free pinion 4.4 and the support pinion 4.2 mesh both with the toothing of the board 3.2 of the mobile of 100th 3 while the free board 4.5 and the support board 4.3 both mesh with the pinion 5.1 of the additional mobile 5 .
  • This game-changing mobile 4 has three precise functions.
  • the first function is useful when stopping the chronograph mechanism. Indeed, as the additional mobile 5 can be stopped between two steps, an additional voltage to the normal voltage can appear in the chronograph wheel. As the reclining game wheel 4 allows a certain angular offset, at least the value of a pitch of the pinion 5.2 of the additional mobile 5, the additional tension can be avoided.
  • the second as the additional mobile 5 is at the end of the train and without constraint, it is important that it is meshed with a mobile game catching otherwise uncontrollable jumps would occur due to the games of the wheel, stopping the additional mobile 5 would then be random.
  • the third function is to convert the jerky rotation, due to the exhaust, into continuous rotation; thanks to the inertia of the additional mobile 5 and complementarily with the first function of the mobile game catchup 4. This third function results in the fact that the thousandth (in this embodiment) will be regulated between each step.
  • the chronometry of a high-precision chronograph is based on a regulating organ oscillating at a lower frequency, for example 18000 to 400000), which increases the power reserve of the mechanism.
  • the power reserve of the chronograph mechanism is at least 15 minutes, despite its precision to the thousandth of a second.
  • the catch-up could be made differently than the one described above.
  • the chronograph train it can be arranged to display using the needle 6 and the graduation 7 a different value than thousandths of a second; that is, the second fraction of a second measured and displayed by the chronograph mechanism is other than a thousandth of a second.
  • the multiplication ratio between the hundredth mobile 3 and the additional mobile 5 so that the latter rotates at a speed different from ten revolutions per second, for example five or twenty revolutions per second; the fraction of a second displayed by the graduation 6, 7 will no longer be the thousandth of a second but another value.
  • the catch-up mobile 4 can be positioned between the additional mobile 5 and a first mobile used to count a first fraction of a second different from the hundredth of a second.
  • the first fraction may be the tenth of a second and the second fraction may be the hundredth of a second, the catch-up mobile being positioned between a mobile tenth and an additional mobile hundredth.
  • a chronograph mechanism according to the present invention can employ a regulating member making 36,000 alternations per hour whereas the prior mechanical counters capable of giving hundredths of a second precision typically use a regulating member making 360,000 vibrations per hour. Therefore, for a given accuracy, the power reserve of a chronograph of the present invention can be increased significantly while avoiding premature wear of its components.
  • a single hundredths hand can display the first and second fractions of a second.
  • the display of the second fraction of a second could be sectoral.
  • the thousandth of a second is displayed using a snail of ten arms 8, each having ten levels.
  • the snail 8 is assembled in solidarity with the axis 5.2 of the additional mobile or fast 5 in addition to the board 5.3 of one hundred teeth.
  • a probe 9 falls on the snail 8 thus indicating the precise position.
  • the arms of the snail 8 are not divided into ten levels but they are smooth, which makes it possible to display precisions still less than one thousandth of a second.
  • the chronograph mechanism further comprises a control device with one or two pushers controlling the starting, stopping and resetting of the chronograph mechanism.
  • This control device is conventional and can be column wheel or cam.
  • this control device also comprises tongs 13, 14 pivoted at O and each having a control probe 13.1, 14.1 cooperating with the column wheel 15 or the cam of the control device and a beak of retaining 13.2, 14.2 cooperating with the teeth of plate 5.3 of the additional mobile to keep it stationary in a stable and determined position.
  • the figure 9 illustrates the clamps 13, 14 in the "start” position of the chronograph.
  • the figure 10 illustrates the clamps 13, 14 in the "stop” position of the chronograph and the figure 11 illustrates the position of the clamps 13, 14 in the reset position of the chronograph.
  • the column wheel 15 may be the same as that of the chronograph mechanism or be an independent column wheel, but in this case actuated by the same pusher of the control device.
  • clamps 13, 14 can be replaced by a blocker controlled by the column wheel 15.
  • the additional mobile 5, or fast mobile returns to the zero position thanks to the ratio between the mobile hundredth 3 and the additional mobile 5 and the fact that the gear Chronograph rotates to reset to zero.
  • the game-changing mobile 4 and the additional mobile 5 can be assembled with a conventional chronograph wheel but in this case it will be necessary to add a lanterned heart on the additional mobile to ensure its reset by a hammer.
  • a retrofit mobile as described above could also be used in other applications where it is desired to eliminate a game and / or to avoid additional tension in a train of a watch movement.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Measurement Of Unknown Time Intervals (AREA)
  • Measurement Of Predetermined Time Intervals (AREA)
EP12002080.5A 2011-04-08 2012-03-23 Chronographenmechanismus Active EP2508953B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH00641/11A CH704775A2 (fr) 2011-04-08 2011-04-08 Mécanisme de chronographe.

Publications (3)

Publication Number Publication Date
EP2508953A2 true EP2508953A2 (de) 2012-10-10
EP2508953A3 EP2508953A3 (de) 2017-10-04
EP2508953B1 EP2508953B1 (de) 2019-09-04

Family

ID=45939093

Family Applications (1)

Application Number Title Priority Date Filing Date
EP12002080.5A Active EP2508953B1 (de) 2011-04-08 2012-03-23 Chronographenmechanismus

Country Status (4)

Country Link
US (1) US9075397B2 (de)
EP (1) EP2508953B1 (de)
CN (1) CN102736502B (de)
CH (1) CH704775A2 (de)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2666046T3 (es) * 2014-10-30 2018-04-30 Société Anonyme de la Manufacture d'Horlogerie Audemars Piguet & Cie Mecanismo de cronógrafo y pieza de relojería que comprende su aplicación
JP1569509S (de) * 2015-10-05 2017-02-13
USD792245S1 (en) * 2015-12-01 2017-07-18 Montblanc-Simplo Gmbh Watch
JP1582295S (de) * 2015-12-21 2017-07-24
EP3185090B1 (de) * 2015-12-23 2019-10-23 Rolex Sa Zähler- und anzeigevorrichtung einer fraktion einer zeiteinheit
USD866382S1 (en) * 2018-04-24 2019-11-12 Richemont International Sa Watch dial
USD866383S1 (en) * 2018-04-24 2019-11-12 Richemont International Sa Watch dial
HK1252182A2 (zh) * 2018-07-06 2019-05-17 Pengelly Co Ltd 有幾何代碼的手錶
JP7393418B2 (ja) * 2018-08-28 2023-12-06 パテック フィリップ ソシエテ アノニム ジュネーブ 時計用の表示装置及びこのような装置を備えた時計
JP1642666S (de) * 2018-09-28 2019-09-30
USD949027S1 (en) * 2020-08-06 2022-04-19 Sowind SA Watch

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Publication number Priority date Publication date Assignee Title
CH697433B1 (fr) 2007-04-04 2008-10-15 D Horlogerie Minerva Sa Fab Pièce d'horlogerie avec mécanisme chronographe.

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CH679823B5 (de) * 1990-10-22 1992-10-30 Ebauchesfabrik Eta Ag
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EP1475682B1 (de) * 2003-05-09 2011-07-13 Audemars Piguet (Renaud et Papi) SA Chronographuhr mit sofortiger Anzeige von Sekunden-Bruchteilen
CH698826B1 (fr) * 2006-03-29 2009-11-13 Girard Perregaux Sa Mouvement pour pièce d'horlogerie à affichage rétrograde.
ATE465438T1 (de) * 2006-11-06 2010-05-15 Longines Montres Comp D UHR, DIE EINEN KORREKTURMECHANISMUS FÜR EINE VORRICHTUNG ZUR ANZEIGE EINER ZEITGRÖßE UMFASST
EP1921524A1 (de) * 2006-11-07 2008-05-14 Manufacture Roger Dubuis S.A. Mechanical timepiece equipped with a chronograph mechanism
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EP2053474B1 (de) * 2007-10-22 2012-12-12 Omega SA Chronographenuhr
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CH704637B1 (fr) * 2007-11-14 2012-09-28 Frank Mueller Watchland S A Roue dentée, engrenage, mouvement horloger et pièce d'horlogerie correspondants.
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Publication number Priority date Publication date Assignee Title
CH697433B1 (fr) 2007-04-04 2008-10-15 D Horlogerie Minerva Sa Fab Pièce d'horlogerie avec mécanisme chronographe.

Also Published As

Publication number Publication date
US20120257480A1 (en) 2012-10-11
US9075397B2 (en) 2015-07-07
CN102736502B (zh) 2016-07-13
CN102736502A (zh) 2012-10-17
EP2508953B1 (de) 2019-09-04
EP2508953A3 (de) 2017-10-04
CH704775A2 (fr) 2012-10-15

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