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EP3324245A1 - System zum sofortantrieb und chronographenmechanismus, der mit einem solchen system ausgestattet ist - Google Patents

System zum sofortantrieb und chronographenmechanismus, der mit einem solchen system ausgestattet ist Download PDF

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Publication number
EP3324245A1
EP3324245A1 EP16199406.6A EP16199406A EP3324245A1 EP 3324245 A1 EP3324245 A1 EP 3324245A1 EP 16199406 A EP16199406 A EP 16199406A EP 3324245 A1 EP3324245 A1 EP 3324245A1
Authority
EP
European Patent Office
Prior art keywords
wheel
cam
drive system
drive
probe
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Withdrawn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
EP16199406.6A
Other languages
English (en)
French (fr)
Inventor
Jean-Marc Wiederrecht
Laurent Wiederrecht
Maximilien Di Blasi
Guy Dubois-Ferrière
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.)
Nogerah SA
Original Assignee
Nogerah 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 Nogerah SA filed Critical Nogerah SA
Priority to EP16199406.6A priority Critical patent/EP3324245A1/de
Priority to EP17807783.0A priority patent/EP3542223B1/de
Priority to JP2019527157A priority patent/JP7042821B2/ja
Priority to CN201780075904.2A priority patent/CN110050236A/zh
Priority to US16/461,020 priority patent/US11300927B2/en
Priority to PCT/EP2017/079695 priority patent/WO2018091696A1/fr
Publication of EP3324245A1 publication Critical patent/EP3324245A1/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Withdrawn legal-status Critical Current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
    • G04B19/00—Indicating the time by visual means
    • G04B19/02—Back-gearing arrangements between gear train and hands
    • G04B19/025—Back-gearing arrangements between gear train and hands for simultaneous indicating on several dials
    • 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
    • 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
    • G04F7/0804—Watches or clocks with stop devices, e.g. chronograph with reset mechanisms
    • 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

Definitions

  • the present invention relates to the field of watchmaking. It relates, more particularly, an instant drive system and a chronograph mechanism equipped with such a system.
  • the second chronograph wheel is arranged so as to be driven by the second wheel of the movement through a clutch mechanism, when it is engaged.
  • the second chronograph wheel carries the second hand of the chronograph.
  • the minute counter hand it is driven by a finger carried by the second chronograph wheel, which requires to have a further reference so that the minute counter hand rotates in the same direction than the second hand. It is the same for the relationship between the minutes counter mobile and the hours counter mobile.
  • the hour meter can be driven directly from the barrel, without going through the minute counter.
  • the mobiles of the minutes and hours counters are also positioned by jumpers, to maintain their position when they are not under the action of their respective drive system.
  • Instant jump counters are also known in which a cam is mounted integral with a second chronograph wheel. A rocker is held in abutment on this cam and is connected to a pawl, which allows to steer the minute counter with each drop of the rocker. A jumper also ensures the positioning of the needle.
  • the counters are each associated with a core cam, with which a hammer can cooperate during the resetting of the counters, in order to return the hands to a predefined position.
  • the object of the present invention is to propose a new chronograph construction, making it possible to avoid the complex synchronization adjustments of the various elements for actuating the hammers.
  • the invention also relates to a chronograph mechanism implementing such a drive system.
  • the invention also relates to a chronograph mechanism comprising a first drive system as mentioned above, in which a second chronograph mobile forms the driving wheel and a minute counter mobile forms the driven wheel.
  • the chronograph mechanism according to the invention also comprises a second drive system as mentioned above, in which the minute counter wheel forms the drive wheel of the second drive system and in which the driven wheel of the second drive system forms an hours counter mobile.
  • this drive system is implemented in a chronograph, for driving a minute counter mobile 140 by a second chronograph mobile 110, on the one hand ( figures 1 and 2 ), and for driving an hours counter mobile 180 by the minutes counter mobile 140 ( figures 3 and 4 ).
  • the elements identical to the drive systems will have the same numbers for the tens and units, with respectively the number 1 for the hundreds of elements involved in the driving of the mobile minute counter and the number 2 for the hundreds of elements involved in the training of the hours counter.
  • the driving wheel is the mobile second chronograph 110, engageable with a wheel of a second, by a clutch not shown.
  • the second chronograph mobile 110 is positioned by a brake, which may be of conventional type, and which has not been shown either.
  • the second chronograph mobile 110 is secured in rotation with a spiral cam 112, whose different roles will appear later.
  • the cam 112 is in the shape of a "simple" spiral, but one could also consider having several spiral portions, distributed at 360 ° / N, where N is the number of spiral portions.
  • Each spiral portion defines at its respective ends an area of minimum radius and a zone of maximum radius. In the direction of rotation of the cam, the transition from a zone of minimum radius to a zone of maximum radius is progressive, and the transition from a zone of maximum radius to the zone of minimum radius is sudden, operating on a fraction of a degree, and defining a threshold 114.
  • a first probe 116 is pivotally mounted along an axis of rotation and held in abutment against the cam by a first spring 117.
  • the first spring is in the form of a spiral, without this being limiting.
  • the first probe 116 is able to move between a first position when it bears on a minimum radius portion of the cam 112 and a second position when it bears on a portion of maximum radius of the cam 112.
  • the spiral cam 112 and the probe 116 are sized and arranged so that a pressure exerted by the probe 116 in the direction of the cam 112, has a non-radial component, able to drive the cam 112 in rotation in the opposite direction of its normal drive by the movement, until the stop of the probe 116 against the threshold 114 or one of the thresholds of the cam.
  • the feeler 116 On its axis of rotation, the feeler 116 carries a winding arm 118, integral in rotation with the feeler 116.
  • the arming wheel 118 could also be pivotally mounted on another axis, being rotated by a toothing integral with the feeler 116.
  • the armoring mobile 118 comprises a first pinion 120, disposed solidly on a shaft 122 coaxial with the axis of rotation, of a first side of the feeler 116.
  • a second pinion 124 is also arranged integrally on the shaft 122, on the other side of the feeler 116 with reference to the first pinion 120.
  • a pin 126 can be fixed on the feeler 116, in the toothing of the second pinion 124, to make the mobile device 118 rotatably integral with it of the probe. When the pin 126 is not in place, it is easy to adjust the indexing of the armature 118 relative to the probe 116.
  • the pin and the second pinion form indexing means of the position of the mobile arming 118 and more particularly the first gear 120 with reference to the probe 116.
  • the drive system further comprises a driving wheel 130, in kinematic connection with the armoring wheel 118.
  • the driving wheel 130 comprises a board 132 provided with a set of teeth. 134 engaged with the first pinion 120 of the armature mobile 118.
  • this toothing 134 is not complete in order to limit the stroke of the driving wheel 130.
  • the driving wheel 130 also comprises a driving finger 136 able to cooperate with the driven wheel (in this case the minutes counter mobile 140) to drive it.
  • the gearing of the driven wheel is intended to optimize a transfer torque transmitted by the drive finger 130.
  • the latter is rotatably mounted on the board 132, being pressed against a stop 138 by an elastic member 139.
  • the drive finger 136 is thus able to lead the wheel driven in the opposite direction of clockwise with reference to the figures which are seen from the bottom of the movement, or in the clockwise direction on the dial side, the drive finger 136 then being in abutment against the stop 138.
  • the finger 136 is retractable by moving against the elastic member 139, when the wheel the driven wheel rotates in the direction of clockwise.
  • the sudden drop of the probe 116 rotates the armature mobile 118 and consequently the driving wheel 130.
  • the driving finger 136 makes a stroke around the axis of rotation of the driving wheel 130, at the during which he drives the wheel steered, preferably.
  • Those skilled in the art can adapt the penetration of the drive finger and its stroke to determine the number of steps performed by the wheel driven at each fall of the probe 116.
  • the cam is integral with the second chronograph mobile 110 and the minute counter mobile 140 is driven one step at each revolution of the cam, ie every minute.
  • the probe has a notch 116a allowing the passage of the axis of rotation of the armature mobile 118 during movement of the probe.
  • a safety pawl 142 is advantageously added, also participating in the angular positioning of the counter wheel. minutes 140, particularly when the drive finger 136 is no longer in the toothing of the driven wheel, when the probe 116 is in the vicinity of its first position ( Fig. 1 ).
  • the chronograph described in the figures comprises a second drive system, for driving an hours counter mobile 150 by the minutes counter mobile 140 ( figures 3 and 4 ).
  • the operation of the second drive system being similar to the first, similar elements will be described more quickly.
  • the driving wheel is the minute counter wheel 140, which is also the driven wheel of the first drive system.
  • the minute counter wheel 140 is secured in rotation with a second winding cam 212.
  • the cam 212 is in the form of a "simple" spiral and has only one threshold.
  • a second probe 216 is pivotally mounted along a second axis of rotation, distinct from the first in the example, and held in abutment against the periphery of the second cam 212 by a second spring 217, also spiral in the example.
  • the second probe 216 is able to move between a first position when it bears on a minimum radius portion of the cam and a second position when it bears against a portion of maximum radius of the cam.
  • the second spiral cam 212 and the second probe 216 are dimensioned and arranged so that a pressure exerted by the second probe 216 towards the second cam 212 has a non-radial component capable of driving the cam 212 into position. rotation in the opposite direction of its normal drive by the movement, until the stop of the second probe 216 against the threshold 214 of the second cam.
  • the second probe 216 On its axis of rotation, the second probe 216 carries a second armature mobile 218, rotatably connected to the second sensor 216.
  • the second armature mobile 218 also comprises two coaxial gears, of which only one positioned by its pin, is visible in the figures.
  • the second drive system further comprises a second driving wheel 230, in kinematic connection with the second mobile arming 218.
  • the second drive mobile 230 is essentially hidden in the figures, but is similar to the first, visible on the figures 1 and 2 . It thus comprises a second driving finger 236, retractable, adapted to cooperate with the second driven wheel to drive it.
  • the second driven wheel is the hour wheel counter of the chronograph 180.
  • the various cams 112, 212 and movable chronograph 110, 140, 180 are arranged coaxially, to provide a coaxial display information timed time, the seconds, minutes and hours according to the example.
  • the angular position of the hours counter mobile 180 is also secured by a second safety pawl 242 disposed on the same axis as the first one 142.
  • the two safety pawls 142, 242 are interconnected with play by a pin 246 secured to each other.
  • the drive system according to the invention is particularly advantageous when it is implemented in a chronograph, as illustrated and described in the present application. Indeed, as will be explained below, the feeler of each drive system can be used also to bring a meter mobile to its Zero position, in the example of figures 1 and 2 , the seconds mobile chronograph 110 and in the example of figures 3 and 4 , the minutes counter mobile 140.
  • the profile of the cams 112 and 212 is arranged in such a way that a support of its respective probe 116, 216 in the direction of the cam makes it possible to drive the cam in rotation, as far as the stop of the probe against the march 114, 214 of the spiral.
  • the action of the spring 117 is efficient when the mobile 110 is disengaged and is no longer subject to a driving torque transmitted by the movement. Indeed, the force exerted by the spring 117 is of course less than the driving force of the movement, so that the chronograph works properly.
  • the clutch may be conventional and need not be described in this application.
  • the chronograph mechanism comprises a clutch release lever 50 that can be moved by a reset command 52.
  • the release lever 50 comprises a first functional zone 54 arranged to cooperate with the driving wheel 130.
  • the first functional zone 54 is advantageously disposed at the end of a flexible arm 56, said end being able to comprise several levels to reach the
  • the force exerted by the disengaging lever 50 on the driving wheel 130 makes it possible to provide additional torque on the probe 116, against the cam 112, accelerating and facilitating thus resetting the second chronograph mobile 110.
  • the spring 117 may be relatively small, because the force exerted by the user on the reset control makes it possible to have a fast return of the second chronograph mobile 110.
  • the friction of the probe 116 on the cam 112 therefore disturbs weakly the movement during operation of the chronograph.
  • the minutes counter mobile 140 must also be reset to zero.
  • the second probe 216 subjected to the action of its spring 217, is arranged to cooperate with the second cam 212 and reduce the minute counter mobile 140 to zero.
  • the release lever 50 is shaped to perform these functions. Firstly, the first functional zone 54 is arranged, cooperating with the driving wheel 130, to release the driving finger 136 from the toothing of the minute counter mobile 140.
  • the release lever 50 also comprises a second functional zone 58, rigid, arranged to cooperate with the safety pawl 142 and put it out of the toothing of the minute counter mobile 140. It is then free to be reset to zero by the action of the second probe 216.
  • the action of the second probe 216 is also reinforced by an actuation of the control 52 of reset.
  • the clutch release lever 50 comprises a third functional zone 60 arranged to cooperate with the second drive wheel 230.
  • the third functional zone 60 is advantageously arranged at the end of an additional flexible arm 62, said end being comprise several levels to reach the second drive wheel 230.
  • the force exerted by the release lever 50 on the second drive wheel 230 makes it possible to provide additional torque on the second probe 216, to the against the second cam 212, thus accelerating and facilitating the resetting of the minute counter wheel 140.
  • the spring 217 can be relatively weak, because the force exerted by the user on the reset command makes it possible to have a rapid return of the minutes counter wheel 140.
  • the hours counter mobile 150 must also be reset to zero.
  • the hour meter mobile 150 is not integral with a cam that could ensure its return to zero.
  • the hour meter wheel 180 is associated with a return spring 182, here taking the form of a spiral spring, arranged to return the mobile to its initial position, which can be defined by a stop. It will be noted that the hours counter mobile 180 is arranged to perform a maximum rotation of 360 °. It comprises in fact a truncated tooth 184, preventing the second drive finger 236 to advance it when the truncated tooth 184 comes opposite the second drive wheel 230.
  • the second functional zone 58 of the clutch lever 50 makes it possible to act simultaneously and in synchronism with the two safety pawls 142 and 242, which are connected to each other by the pin 246 and the clutch.
  • the release lever 50 makes the mobile of the hour counter 180 free of the second safety pawl 242
  • the return spring 182 brings it back to its initial zero position.
  • the present application proposes an original jumping drive system that is particularly suitable for a chronograph mechanism, in which the feeler makes it possible both to connect the driving wheel to the driven wheel for driving it, but also to participate resetting the counter, cooperating with its cam. This avoids the use of traditional hammers.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Measurement Of Unknown Time Intervals (AREA)
EP16199406.6A 2016-11-17 2016-11-17 System zum sofortantrieb und chronographenmechanismus, der mit einem solchen system ausgestattet ist Withdrawn EP3324245A1 (de)

Priority Applications (6)

Application Number Priority Date Filing Date Title
EP16199406.6A EP3324245A1 (de) 2016-11-17 2016-11-17 System zum sofortantrieb und chronographenmechanismus, der mit einem solchen system ausgestattet ist
EP17807783.0A EP3542223B1 (de) 2016-11-17 2017-11-17 System zum sofortantrieb und chronographenmechanismus, der mit einem solchen system ausgestattet ist
JP2019527157A JP7042821B2 (ja) 2016-11-17 2017-11-17 ゼロリセット機能付き表示機構
CN201780075904.2A CN110050236A (zh) 2016-11-17 2017-11-17 具有零重置功能的显示机构
US16/461,020 US11300927B2 (en) 2016-11-17 2017-11-17 Display mechanism with zero reset function
PCT/EP2017/079695 WO2018091696A1 (fr) 2016-11-17 2017-11-17 Mecanisme d'affichage avec fonction de remise a zero

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP16199406.6A EP3324245A1 (de) 2016-11-17 2016-11-17 System zum sofortantrieb und chronographenmechanismus, der mit einem solchen system ausgestattet ist

Publications (1)

Publication Number Publication Date
EP3324245A1 true EP3324245A1 (de) 2018-05-23

Family

ID=57345822

Family Applications (2)

Application Number Title Priority Date Filing Date
EP16199406.6A Withdrawn EP3324245A1 (de) 2016-11-17 2016-11-17 System zum sofortantrieb und chronographenmechanismus, der mit einem solchen system ausgestattet ist
EP17807783.0A Active EP3542223B1 (de) 2016-11-17 2017-11-17 System zum sofortantrieb und chronographenmechanismus, der mit einem solchen system ausgestattet ist

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP17807783.0A Active EP3542223B1 (de) 2016-11-17 2017-11-17 System zum sofortantrieb und chronographenmechanismus, der mit einem solchen system ausgestattet ist

Country Status (5)

Country Link
US (1) US11300927B2 (de)
EP (2) EP3324245A1 (de)
JP (1) JP7042821B2 (de)
CN (1) CN110050236A (de)
WO (1) WO2018091696A1 (de)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3486735B1 (de) * 2017-11-20 2020-09-30 Montres Breguet S.A. Uhrwerksmechanismus zur nullrückstellung der sekunde mit schneckennocken
EP4307052A1 (de) 2022-07-14 2024-01-17 Manufacture d'Horlogerie Audemars Piguet SA Chronographenmechanismus für uhrwerk

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0788036A2 (de) * 1996-02-01 1997-08-06 Gerald Genta S.A. Uhr, insbesondere Armbanduhr
CH690630A5 (fr) * 1997-03-24 2000-11-15 Leschot Sa Montre comportant un dispositif d'affichage rétrograde du quantième.
EP1408383A1 (de) * 2002-10-07 2004-04-14 Vaucher Manufacture Fleurier SA Chronographenuhrwerk
CH699143B1 (fr) * 2005-02-14 2010-01-29 Mct Holding S A Mécanisme d'affichage.
CH703361A2 (fr) * 2010-06-22 2011-12-30 Artisans Horlogers Sarl Mouvement horloger presentant des fonctions de chronographe et de compte-a-rebours.
CH704915A2 (fr) * 2011-05-11 2012-11-15 Manuf La Joux Perret Sa Dispositif d'affichage sautant amélioré.
US20160011568A1 (en) * 2013-03-28 2016-01-14 Uwe Heinz Chronograph

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE40770C (de) * E. HEUER in Biel, Schweiz Neuerung an Chronograph-Taschenuhren
DE701496C (de) * 1938-05-25 1941-01-17 Ebauches A G Stoppuhrwerk
DE19852347C2 (de) * 1998-11-13 2001-02-08 Lange Uhren Gmbh Minutenzähler einer Uhr
DE10200284C1 (de) * 2002-01-07 2003-01-02 Walter Haselberger Uhrenanzeigevorrichtung mit springender Stundenanzeige
US6975561B2 (en) * 2002-06-13 2005-12-13 Vaucher Manufacture Fleurier S.A. Chronograph mechanism
CH702137B1 (fr) * 2007-02-05 2011-05-13 Patek Philippe Sa Geneve Dispositif d'entraînement et de réglage d'un compteur instantané et pièce d'horlogerie comportant un tel dispositif.
EP1978424B1 (de) * 2007-04-04 2011-11-02 Montres Journe S.A. Chronograph
CH700302A2 (de) * 2009-01-21 2010-07-30 Montblanc Simplo Gmbh Chronograph.
CH700753B1 (fr) 2009-04-15 2014-03-14 Patek Philippe Sa Geneve Mécanisme de compteur instantané et came escargot pour un tel mécanisme.
CH707163A2 (fr) * 2012-11-06 2014-05-15 Montres Breguet Sa Montre astronomique.
CH707233A1 (de) * 2012-11-22 2014-05-30 Eterna Ag Uhrenfabrik Minutzenzähler einer Uhr, insbesondere eines Chronographen.
EP2881810B1 (de) * 2013-12-03 2021-02-24 ETA SA Manufacture Horlogère Suisse Verfahren für die anzeige von tendenzen bei der zeitmessung, und entsprechende uhr
JP3192199U (ja) * 2014-05-22 2014-07-31 昭安 宮澤 時計機構
EP3015927B1 (de) * 2014-10-30 2018-01-31 Société anonyme de la Manufacture d'Horlogerie Audemars Piguet & Cie Uhrmechanismus und Uhr, bei der dieser zur Anwendung kommt

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0788036A2 (de) * 1996-02-01 1997-08-06 Gerald Genta S.A. Uhr, insbesondere Armbanduhr
CH690630A5 (fr) * 1997-03-24 2000-11-15 Leschot Sa Montre comportant un dispositif d'affichage rétrograde du quantième.
EP1408383A1 (de) * 2002-10-07 2004-04-14 Vaucher Manufacture Fleurier SA Chronographenuhrwerk
CH699143B1 (fr) * 2005-02-14 2010-01-29 Mct Holding S A Mécanisme d'affichage.
CH703361A2 (fr) * 2010-06-22 2011-12-30 Artisans Horlogers Sarl Mouvement horloger presentant des fonctions de chronographe et de compte-a-rebours.
CH704915A2 (fr) * 2011-05-11 2012-11-15 Manuf La Joux Perret Sa Dispositif d'affichage sautant amélioré.
US20160011568A1 (en) * 2013-03-28 2016-01-14 Uwe Heinz Chronograph

Also Published As

Publication number Publication date
JP2020500312A (ja) 2020-01-09
JP7042821B2 (ja) 2022-03-28
US11300927B2 (en) 2022-04-12
EP3542223A1 (de) 2019-09-25
US20190271948A1 (en) 2019-09-05
EP3542223B1 (de) 2022-03-02
WO2018091696A1 (fr) 2018-05-24
CN110050236A (zh) 2019-07-23

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