EP0772104A1 - Uhr mit Chronographmechanismus - Google Patents

Uhr mit Chronographmechanismus Download PDF

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Publication number
EP0772104A1
EP0772104A1 EP96810711A EP96810711A EP0772104A1 EP 0772104 A1 EP0772104 A1 EP 0772104A1 EP 96810711 A EP96810711 A EP 96810711A EP 96810711 A EP96810711 A EP 96810711A EP 0772104 A1 EP0772104 A1 EP 0772104A1
Authority
EP
European Patent Office
Prior art keywords
mobile
clutch
wheel
chronograph
seconds
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
EP96810711A
Other languages
English (en)
French (fr)
Other versions
EP0772104B1 (de
Inventor
Marc Schmidt
Michel Sintes
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.)
Rolex SA
Original Assignee
Montres Rolex 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 Montres Rolex SA filed Critical Montres Rolex SA
Publication of EP0772104A1 publication Critical patent/EP0772104A1/de
Application granted granted Critical
Publication of EP0772104B1 publication Critical patent/EP0772104B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • G04F7/0842—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
    • G04F7/0804—Watches or clocks with stop devices, e.g. chronograph with reset mechanisms
    • G04F7/0814—Watches or clocks with stop devices, e.g. chronograph with reset mechanisms with double hammer, i.e. one hammer acts on two counters
    • 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
    • G04F7/0823—Watches or clocks with stop devices, e.g. chronograph with couplings between the chronograph mechanism and the base movement
    • G04F7/0828—Watches or clocks with stop devices, e.g. chronograph with couplings between the chronograph mechanism and the base movement acting in the plane of the movement

Definitions

  • the present invention relates to a timepiece with a chronograph mechanism, comprising seconds, minutes and hour counters, having three respective indicator members each secured to a rotary mobile, clutch means for selectively setting engaged these rotary mobiles with a drive train for this timepiece, a device for controlling these clutch means and a mechanism for resetting these indicator members to zero.
  • the place taken by these gear mechanisms is important and the surface occupied can be evaluated in general at 50% respectively 30% for these first and second gear mechanisms.
  • the arrangement of the two sides of the movement also takes up space, so that such chronographs either increase the general volume of the timepiece or reduce the volume available for the other vital elements of this timepiece , that is to say, the barrel, the balance and the automatic winding mechanism.
  • the volume of the barrel determines the power reserve of the watch and the diameter of the balance determines its precision.
  • the toothing of a clutch wheel mounted on a rocker engages the toothing of the drive wheel. Since during the stop it continued to rotate, the two teeth are not necessarily in the engagement position when they engage with each other. Since the drive wheel is under the tension of the barrel spring acting on the entire kinematic chain between the barrel and the escapement, it is the gear mechanism of the chronograph counter which undergoes a slight angular movement to allow the penetration of the toothed wheels into one another. This slight rotation is imperceptible for the train of minute and second counters, given the large number of teeth which is precisely chosen high to reduce the angular displacement following the clutch. On the other hand, the toothing of the hour meter train is necessarily less fine, so that the angular offset is more noticeable. In the case of cumulative timings, the angular offsets can add up and eventually produce a visible and annoying difference between the position of the hand of the minute counter and that of the hour counter.
  • this finger When the counters are reset, this finger returns to its starting position by cutting the path of the teeth of the wheel that this finger normally drives. At the same time, this wheel, driven by the minutes mobile also returned to its starting position, turns in the opposite direction to return to its zero position. Therefore, during this double rotation in opposite directions, this finger can meet up to 15 teeth of this wheel and must retract with each tooth thus causing wear of both the teeth and the finger.
  • the object of the present invention is to remedy, at least in part, the above-mentioned drawbacks.
  • the subject of this invention is a timepiece with a chronograph mechanism according to claim 1.
  • the simplification of the chronograph mechanism also goes in the direction of an increase in its reliability.
  • the periodic drive of the indicator members of the hour and minute counters by the gear train of the timepiece also makes it possible to reduce the energy taken from this gear train for driving the chronograph mechanism.
  • only one indexing member is necessary, also reducing the energy required to drive this transmission.
  • timepiece could also be an electronic timepiece, in particular a quartz watch with rotary display, in particular with analog display.
  • a mechanical timepiece it may or may not be automatic.
  • FIG. 1 illustrates the plate 1 with the location of the barrel core 2 and that of the balance wheel 3. It also illustrates the location of the winding stem fixed to the winding crown 4 as well as that of the two chronograph pushers 5 and 6 controlling the starting and stopping respectively the resetting of the chronograph.
  • FIG. 3 illustrates the same members with, in addition, the mean wheel 14, the pinion 14 'of which meshes with the center wheel 8.
  • This mean wheel 14 meshes with the pinion 15' of the seconds wheel 15 carrying the needle of seconds off-center 16.
  • the axis of the seconds wheel 15 carries a pinion 15 "which meshes with a pinion 17 'pivoted freely on the axis of a clutch wheel 17 of the chronograph, this wheel 17 being integral with its axis 17a.
  • the detail of the clutch mechanism associated with this clutch wheel 17 will be described below.
  • the gear ratio between the pinions 15 "and 17 ' is 1/1, so that the speed of rotation of the clutch wheel 17 is identical to that of the seconds wheel 15.
  • the clutch wheel 17 meshes with a wheel 18 which constitutes the second chronograph wheel and which has the same number of teeth as the clutch wheel 17, so that it rotates at the same speed as the clutch wheel 17 and, consequently, that the seconds wheel 15.
  • the chronograph seconds wheel 18 Given the reversal of the direction of rotation of two wheels meshing with each other, the chronograph seconds wheel 18 therefore rotates in the same direction as the wheel 15 seconds from the work of the timepiece.
  • the axis 18a of this second chronograph wheel 18 carries the second chronograph hand 19 and crosses the tubular axis 9 of the center wheel 8 with respect to which it pivots freely in bearings 20, 21, 22 secured respectively, of a bridge 23 carrying the chronograph train, of a bridge 24 of the train of the timepiece fixed on one face of the plate 1, the opposite face of which carries the dial 25, and of the tubular axis 9 of the wheel center 8.
  • the clutch wheel 17 also carries a second annular drive member in the form of an open ring 26, comprising a retractable finger 27 in the shape of a triangle projecting radially towards the outside of the ring (FIGS. 3 and 5). .
  • This annular drive member 26 is pivotally mounted on a pin 28 driven into the clutch wheel 17. From this pin, the drive member 26 tapers to form a return spring 26a of the retractable finger 27 integrated into this member 26. Part 26a of the drive member 26 is housed in a recess 29 in the clutch wheel 17.
  • the retractable finger 27 cuts the path of a first wheel 35 of the train of chronograph counters , so as to drive the latter at each revolution of the clutch wheel 17.
  • the column wheel 50 is integral and coaxial with a ratchet wheel 52 (FIG. 1) engaged with a pawl 53 secured to one end of a rocker 54 pivoted about an axis 55.
  • This rocker 54 is controlled by the chronograph on-off push-button 5.
  • a return spring 56 is disposed under the rocker 54 and serves to return the latter to the rest position.
  • the lever 54 has a clearance 54a in which a stop 57 is engaged and serves to limit the stroke of the lever 54 and therefore the angular displacement of the ratchet wheel 52, which is positioned by a spring pawl 58.
  • the other has an inclination such that it tends to constantly bring the pin 60 back into this same position as soon as pressure ceases to be exerted on the pusher 6, the elongated opening allowing this rocker 59 to return to the rest position independently of the rocker 62.
  • This rocker 62 also carries a dowel 65 (FIG. 4) engaged in an opening 66 of a reset member 67 carrying three hammers 68, 69, 70.
  • This dowel 65 serves to drive this reset member 67, as will be explained below.
  • a positioning spring 71 of the pin 65 ends in two inclined planes, one of which tends to maintain the rocker 62 in the rest position, illustrated in FIG. 1, while the other tends to keep it in the position engaged in the column wheel 50, position corresponding to the resetting to zero and the locking of the indicator members of the chronograph counters by the hammers 68, 69, 70 in engagement with the cams 42, 34 and 43 respectively, as illustrated in phantom in the figure 4.
  • the chronograph mechanism In the position illustrated in solid lines in FIGS. 1 to 5, the chronograph mechanism is in operation. In this position, the clutch wheel 17 is engaged with the second chronograph wheel 18, while the retractable finger 27 meets the teeth of the first wheel 35 of the chronograph train once per revolution, that is to say say, once a minute, and spin it one step. Driven by the reference 37, the minute counter wheel 38 therefore also rotates one step, in the same direction as the wheel 35. Thanks to the reduction ratio due to the pinion 35 'to the wheel 40 and to the pinion 40 ', the wheel 41 of the hour counter also rotates in the same direction as the wheel 35, but by an angle 24 times smaller. Since the wheel of the minute counter 38 and that 41 of the hour counter are connected by a kinematic transmission, no offset can occur between them.
  • the spring 64 pushes back the pin 60 and the rocker 59 independently of the rocker 62, thanks to the elongated opening 61 in which the pin 60 is engaged .
  • the rocker 62 is kept engaged in the column wheel 50 by the spring 71 acting on the pin 65 until the start button 5 is actuated again.
  • the column wheel pushes the rocker 62 backwards.
  • the rockers 44 and 45, the column wheel 50 of which unlocks the finger 44b, are separated from the clutch ring 33 by the spring 48.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Measurement Of Unknown Time Intervals (AREA)
  • Electromechanical Clocks (AREA)
EP96810711A 1995-10-31 1996-10-24 Uhr mit Chronographmechanismus Expired - Lifetime EP0772104B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
CH307795 1995-10-31
CH03077/95A CH690524A5 (fr) 1995-10-31 1995-10-31 Pièce d'horlogerie à mécanisme de chronographe.
CH3077/95 1995-10-31

Publications (2)

Publication Number Publication Date
EP0772104A1 true EP0772104A1 (de) 1997-05-07
EP0772104B1 EP0772104B1 (de) 1999-08-25

Family

ID=4248123

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96810711A Expired - Lifetime EP0772104B1 (de) 1995-10-31 1996-10-24 Uhr mit Chronographmechanismus

Country Status (8)

Country Link
US (1) US5793708A (de)
EP (1) EP0772104B1 (de)
JP (1) JP3316147B2 (de)
CN (1) CN1084490C (de)
CH (1) CH690524A5 (de)
DE (1) DE69603927T2 (de)
ES (1) ES2136381T3 (de)
HK (1) HK1000560A1 (de)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1136894A1 (de) * 2000-03-20 2001-09-26 DTH Dubois Technique Horlogère SA Vorrichtung für Nullrückstellung in einer Chronographenuhr
EP1826639A1 (de) * 2006-02-22 2007-08-29 Seiko Epson Corporation Uhr mit kumulativer Antreibezeit
EP2068211A1 (de) * 2007-12-07 2009-06-10 Omega SA Chronograph-Steuervorrichtung
EP2073078A1 (de) * 2007-12-21 2009-06-24 Omega SA Bistabiler hammer für chronographenmechanismus
EP3147728A1 (de) * 2015-09-24 2017-03-29 Harry Winston SA Mechanismus zum positionieren eines zahnrads in einem uhrwerk
EP3825786A1 (de) * 2019-11-21 2021-05-26 Patek Philippe SA Genève Anzeigemechanismus einer uhr
EP3944026A1 (de) 2020-07-21 2022-01-26 Rolex Sa Uhrwerkmechanismus mit zählkette

Families Citing this family (33)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19707528C1 (de) * 1997-02-25 1998-08-13 Reinhausen Maschf Scheubeck Stellungsanzeige
JP3568763B2 (ja) * 1997-12-22 2004-09-22 セイコーインスツルメンツ株式会社 発停レバー及びクロノグラフ受を備えたクロノグラフ時計
JPH11183652A (ja) * 1997-12-22 1999-07-09 Seiko Instruments Inc クロノグラフ時計
EP1239419A1 (de) * 2001-03-08 2002-09-11 Asthagiri Raman Krishnamani Mechanische Uhr mit Anzeige der Wochenzyklen
DE60137113D1 (de) * 2001-03-21 2009-02-05 Chronoswiss Uhren Gmbh Uhrwerk
US6761478B2 (en) * 2001-03-21 2004-07-13 Glashütter Uhrenbetrieb GmbH Chronograph with two rotational directions
DE10135110B4 (de) * 2001-07-19 2004-05-27 Lange Uhren Gmbh Chronograph
EP1296205A1 (de) * 2001-09-24 2003-03-26 Girard-Perregaux S.A. Chronographmechanismus
EP1333345B1 (de) 2002-02-01 2008-03-26 TAG Heuer SA Vorrichtung mit Uhrwerk und Chronographenmodul
JP2004020422A (ja) * 2002-06-18 2004-01-22 Seiko Instruments Inc 規正レバーを有するアナログ電子時計
JP4820522B2 (ja) * 2002-07-11 2011-11-24 セイコーインスツル株式会社 機械式クロノグラフ時計
AU2003219413A1 (en) * 2002-10-07 2004-04-23 Vaucher Manufacture Fleurier S.A. Display device for watch
JP2004294278A (ja) * 2003-03-27 2004-10-21 Seiko Instruments Inc クロノグラフユニットに配置されたクロノグラフ輪列を含むクロノグラフ時計
JP4296019B2 (ja) * 2003-03-27 2009-07-15 セイコーインスツル株式会社 帰零構造を有するクロノグラフ時計
JP2006170762A (ja) * 2004-12-15 2006-06-29 Seiko Instruments Inc 扇形運針輪列を備えた多機能時計および扇形運針輪列装置
EP1746471B1 (de) * 2005-07-20 2019-09-18 Breitling AG Null-Rückstellungsvorrichtung für zwei Zeitzähler
DE05405596T1 (de) * 2005-10-21 2007-10-11 Rolex Sa Uhr mit einem Mechanismus zur Messung von einstellbaren vorbestimmten Zeitdauern
US7597471B2 (en) * 2005-11-24 2009-10-06 Vaucher Manufacture Fleurier S.A. Time piece chronograph clockwork movement
EP1791038A1 (de) * 2005-11-24 2007-05-30 Vaucher Manufacture Fleurier SA Uhrwerk
JP5168843B2 (ja) * 2006-03-03 2013-03-27 セイコーエプソン株式会社 クロノグラフ時計
EP2045672B1 (de) * 2007-10-02 2014-02-26 Omega SA Vorrichtung zur Nullrückstellung für zwei Zeitgeber
CH704304B1 (fr) * 2007-12-21 2012-06-29 Frank Mueller Watchland S A Mécanisme de chronographe, mouvement horloger et pièce d'horlogerie comprenant un tel mécanisme.
EP2221676B1 (de) * 2009-02-24 2011-07-20 Montres Breguet SA Uhr bestehend aus einem Chronographen und einem Uhrwerk
JP2011013119A (ja) * 2009-07-02 2011-01-20 Seiko Instruments Inc クロノグラフ時計
JP2011022042A (ja) * 2009-07-16 2011-02-03 Seiko Instruments Inc クロノグラフ時計
JP5536623B2 (ja) * 2010-02-03 2014-07-02 セイコーインスツル株式会社 クロノグラフ時計
EP2362277B1 (de) * 2010-02-25 2012-10-31 Montres Breguet SA Zeitzone auf Wunsch auf den Hauptzeigern einer Uhr
EP2362276B1 (de) * 2010-02-25 2012-10-31 Montres Breguet SA Programmierbares und umprogrammierbares mechanisches Speicherrad für Uhr
CH708999A1 (fr) * 2013-12-16 2015-06-30 Société Anonyme De La Manufacture D Horlogerie Audemars Piguet & Cie Dispositif de remise à zéro avec marteaux indépendants.
EP3324249A1 (de) * 2016-11-17 2018-05-23 Nogerah SA Kupplungssystem für chronograph
DE202017107668U1 (de) * 2017-12-18 2018-01-19 Uwe Heinz Nullstellvorrichtung für Minutenzeiger eines Chronographen und Chronograph
CN111409848B (zh) * 2020-01-16 2021-09-28 中国商用飞机有限责任公司 襟翼作动器的零位调节装置
CN115453843B (zh) * 2022-08-29 2023-08-22 中国计量大学 一种带复位功能的计时机械结构

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Publication number Priority date Publication date Assignee Title
GB1257455A (de) * 1969-04-10 1971-12-22
FR2176158A1 (de) * 1972-03-15 1973-10-26 Ebauches Sa
CH623980GA3 (en) * 1979-01-19 1981-07-15 Timepiece with chronograph

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Publication number Priority date Publication date Assignee Title
CH584937B5 (de) * 1973-07-10 1977-02-15 Suisse Horlogerie
JPS55152487A (en) * 1979-05-16 1980-11-27 Seiko Epson Corp Crystal wrist watch
DE8027665U1 (de) * 1980-10-16 1981-02-26 Revue Thommen Ag, Waldenburg (Schweiz) Uhr mit einem durch einen elektrischen Oszillator steuerbaren Motor
CH649189GA3 (de) * 1981-12-28 1985-05-15
CH678911B5 (de) * 1990-04-12 1992-05-29 Ebauchesfabrik Eta Ag
DE69217036T2 (de) * 1991-09-13 1997-06-12 Citizen Watch Co Ltd Analoger uhr mit mehrfachen zeitangaben

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1257455A (de) * 1969-04-10 1971-12-22
FR2176158A1 (de) * 1972-03-15 1973-10-26 Ebauches Sa
CH623980GA3 (en) * 1979-01-19 1981-07-15 Timepiece with chronograph

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1136894A1 (de) * 2000-03-20 2001-09-26 DTH Dubois Technique Horlogère SA Vorrichtung für Nullrückstellung in einer Chronographenuhr
EP1826639A1 (de) * 2006-02-22 2007-08-29 Seiko Epson Corporation Uhr mit kumulativer Antreibezeit
CN101452256B (zh) * 2007-12-07 2012-05-16 奥米加股份有限公司 计时器控制装置
EP2068211A1 (de) * 2007-12-07 2009-06-10 Omega SA Chronograph-Steuervorrichtung
US8235584B2 (en) 2007-12-07 2012-08-07 Omega S.A. Chronograph control device
EP2073078A1 (de) * 2007-12-21 2009-06-24 Omega SA Bistabiler hammer für chronographenmechanismus
CN101504532B (zh) * 2007-12-21 2012-01-04 奥米加股份有限公司 用于计时机构的双稳态击锤
US7918602B2 (en) 2007-12-21 2011-04-05 Omega S.A. Bistable hammer for a chronograph mechanism
EP3147728A1 (de) * 2015-09-24 2017-03-29 Harry Winston SA Mechanismus zum positionieren eines zahnrads in einem uhrwerk
WO2017050888A1 (fr) * 2015-09-24 2017-03-30 Harry Winston Sa Mécanisme de positionnement d'une roue dentée dans un mouvement horloger
US10365613B2 (en) 2015-09-24 2019-07-30 Harry Winston Sa Positioning mechanism for a toothed wheel in a watch movement
EP3825786A1 (de) * 2019-11-21 2021-05-26 Patek Philippe SA Genève Anzeigemechanismus einer uhr
EP3944026A1 (de) 2020-07-21 2022-01-26 Rolex Sa Uhrwerkmechanismus mit zählkette

Also Published As

Publication number Publication date
EP0772104B1 (de) 1999-08-25
DE69603927D1 (de) 1999-09-30
JP3316147B2 (ja) 2002-08-19
ES2136381T3 (es) 1999-11-16
JPH09178868A (ja) 1997-07-11
CN1154498A (zh) 1997-07-16
DE69603927T2 (de) 2000-01-13
HK1000560A1 (en) 2002-09-13
CN1084490C (zh) 2002-05-08
CH690524A5 (fr) 2000-09-29
US5793708A (en) 1998-08-11

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