EP2945029B1 - Chronograph Verriegelung (Vorrichtung für Uhr) - Google Patents

Chronograph Verriegelung (Vorrichtung für Uhr) Download PDF

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Publication number
EP2945029B1
EP2945029B1 EP14168485.2A EP14168485A EP2945029B1 EP 2945029 B1 EP2945029 B1 EP 2945029B1 EP 14168485 A EP14168485 A EP 14168485A EP 2945029 B1 EP2945029 B1 EP 2945029B1
Authority
EP
European Patent Office
Prior art keywords
wheel
hook
coupling
clutch
hooks
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
EP14168485.2A
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English (en)
French (fr)
Other versions
EP2945029A1 (de
Inventor
Anthony Kruttli
David Chabloz
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.)
Patek Philippe SA Geneve
Original Assignee
Patek Philippe SA Geneve
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 Patek Philippe SA Geneve filed Critical Patek Philippe SA Geneve
Priority to EP14168485.2A priority Critical patent/EP2945029B1/de
Priority to US15/122,562 priority patent/US10496039B2/en
Priority to JP2016567820A priority patent/JP6527532B2/ja
Priority to PCT/EP2015/060713 priority patent/WO2015173372A2/fr
Publication of EP2945029A1 publication Critical patent/EP2945029A1/de
Application granted granted Critical
Publication of EP2945029B1 publication Critical patent/EP2945029B1/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
    • 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
    • G04B11/00—Click devices; Stop clicks; Clutches
    • 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 device for a timepiece comprising a movable member that can take several determined positions under the action of a control member. More particularly, the present invention relates to a clutch device, especially for a chronograph.
  • a clutch device makes it possible to transmit the movement of a moving body from the finishing train to the chronograph wheel carrying the chronograph hand.
  • the clutch device comprises a clutch wheel that can occupy an engaged position, corresponding to the chronograph running position, where the chronograph wheel is driven by a mobile of the work train via the clutch wheel, and a position disengaged, corresponding to the stop position of the chronograph, where the chronograph wheel is not driven by a mobile of the work train via the clutch wheel.
  • a clutch rocker carrying the clutch wheel cooperates with a control member to move the clutch wheel in its engaged and disengaged positions.
  • Jumpers, springs and stops ensure the position of the clutch device members in its engaged or disengaged position, particularly when the chronograph is running.
  • the document EP 2,228,692 describes such a clutch device.
  • the document EP 1 296 205 discloses a device for locking a mobile in case of shock.
  • This device comprises a movable member that can take at least two determined positions and a control cam cooperating with said movable member.
  • the device further comprises an organ of locking cooperating with an intermediate member controlled by the movable member for locking the movable member in case of impact.
  • the locking member is carried by a separate member of the movable member and the control cam, which increases the size of the device and requires to take into account the relative movements of these three elements (movable member , control cam, locking member) for adjusting and adjusting the device.
  • the object of the present invention is to provide a device for a timepiece comprising a movable member which can take at least two predetermined positions and which makes it possible to prevent said movable member from leaving one of its determined positions under the effect of a shock.
  • an object of the present invention is to provide a clutch device for a workpiece and especially for a chronograph to solve the problem described above and prevent clutch disengagement clutch in case of shock or sudden movement and therefore to ensure the measurement.
  • the present invention relates to a device for a timepiece comprising a movable member that can take at least two determined positions and a control cam cooperating with said movable member to define said at least two determined positions, characterized by the fact that the device further comprises a locking member secured to the control cam and an intermediate member controlled by the movable member and intended to cooperate with the locking member and the movable member to prevent or limit the movement of said mobile member under the effect of a shock when the movable member is in one of these predetermined positions, thus avoiding said movable member leaves its determined position.
  • the present invention also relates to a method of adjusting the device according to claim 11, a chronograph mechanism according to claim 12 and a timepiece according to claim 13.
  • the device for a timepiece according to the invention is a clutch device for a chronograph.
  • the clutch device comprises a clutch rocker 1 pivoted at A (for example on a bridge or on the platen of the movement comprising the chronograph mechanism) and carrying a wheel.
  • clutch 2 is permanently engaged with a mobile of the basic movement of the timepiece.
  • the driving of the clutch wheel 2 by the basic movement is via the driving wheel 3 also rotated A.
  • This driving wheel 3 is connected in a conventional manner to the work train (for example to the seconds wheel) of the movement.
  • the clutch rocker 1 pivots at A between a first position illustrated in FIG. figure 1 and wherein the clutch wheel 2 is in the engaged position engaged with a chronograph wheel 4 of the chronograph mechanism and a second position illustrated in FIG. figure 2 in which the clutch wheel 2 is in the disengaged position and is not engaged with said chronograph wheel 4.
  • the clutch rocker 1 has at one of its ends a spout 5 ( figures 3 and 4 ) for cooperating with a control member 6 of the clutch device for positioning said clutch rocker 1.
  • the control cam is a column wheel 6.
  • the column wheel 6 comprises a toothing 6a and columns 6b ( figures 3 and 4 ) arranged perpendicularly and concentrically to the toothing 6a.
  • Column wheel 8 cooperates with the toothing 6a to determine the stable and accurate positions of the column wheel 6.
  • the chronograph further comprises a chronograph control member (not shown) cooperating with the teeth 6a for training of the column wheel 6.
  • the clutch rocker 1 is subjected to the action of a rocker spring 7 which makes it possible to move the rocker 7 and which tends to keep it in contact with the column wheel 6.
  • a rocker spring 7 which makes it possible to move the rocker 7 and which tends to keep it in contact with the column wheel 6.
  • the spout 5 of the clutch rocker 1 is engaged between two columns 6b of the column wheel 6.
  • the clutch lever 1 further controls an arm 9.
  • the arm 9 is fixed on the clutch lever 1.
  • the free end of the arm 9 in the form of a first hook 10.
  • the arm 9 and the first hook 10 are arranged to cooperate with a locking member integral with the column wheel 6.
  • the locking member is a hook wheel 12 having hooks 11 radially distributed at its circumference.
  • the nose 5 of the clutch rocker 1 is engaged between two columns 6b of the column wheel 6.
  • the clutch wheel 2 is thus engaged with the chronograph wheel 4.
  • the hook wheel 12 and the arm 9 are shaped so that in this engaged position, the first hook 10 of the arm 9 cooperates with a second hook 11 of the hook wheel 12 and blocks or limits the movement of the clutch rocker 1 in its first position in which the wheel clutch 2 is in the engaged position and engaged with the chronograph wheel 4 when a shock tends to move said rocker 1 against the action of its rocking spring 7.
  • the first hook 10 of the arm 9 is also in abutment between two hooks 11 of the hook wheel 12 and precisely positions the clutch wheel 2 to engage correctly with the chronograph wheel 4.
  • the hook wheel 12 has as many second hooks 11 as there are columns 6b on the column wheel 6.
  • actuation of the chronograph control device causes the clockwise rotation of the column wheel 6.
  • the spout 5 of the clutch rocker 1 then falls in a space between two columns 6b of the wheel 6.
  • the first hook 10 of the arm 9 abuts against a second hook 11 of the hook wheel 12 which has pivoted simultaneously with the column wheel 6.
  • the first and second hooks 10, 11 each have a first inclined blank 100, 110.
  • said inclined blanks 100, 110 are shaped so that they slide on one another, causing the displacement of the first hook 10 by elastic deformation of the arm 9 until said first hook 10 finds a position in which it cooperates with the second hook 11 to retain the clutch lever 1.
  • the hook wheel 12, the arm 9 and its first hook 10 are shaped to cooperate when the clutch rocker 1 is in its first engaged position so as to limit or prevent any movement of said rocker 1 against the action of its rocking spring 7 under the effect of a shock that tends to make it reach its disengaged position.
  • the clutch rocker 1 is retained in its first position by the hook wheel 12 and the clutch wheel 2 remains in engagement with the chronograph wheel 4 without interrupting the measurement.
  • the hook wheel 12 pivots simultaneously with the column wheel 6 so as to release the first hook 10 before the column wheel 6 raises the clutch rocker 1 and thus allow the clutch lever 1 to reach its second position in which the clutch wheel 2 is in the disengaged position.
  • the second hooks 11 of the hook wheel 12 have a shape such that there is a play J A between said hooks 11 and the first hook 10 of the arm 9 when they cooperate in the engaged position of the device.
  • the parts are dimensioned so that said operating clearance J A makes it possible to guarantee the penetration of the teeth of the clutch wheel 2 relative to the teeth of the chronograph wheel 4.
  • the inner blanks 111, 101 respectively second hooks 11 of the hook wheel 12 and the first hook 10 of the arm 9 are substantially parallel.
  • the second hooks 11 of the hook wheel have a shape such that there is no set of operation between said hooks 11 and the first hook 10 of the arm 9 when they cooperate in the engaged position of the device.
  • the second hooks 11 of the hook wheel 12 and the first hook 10 of the arm 9 each have an inclined inner blank 112, 102 so that the contact between said first and second hooks 10, 11 is at all time in two points in the first engaged position of the rocker 1.
  • the impact resistance of the device depends on the inclination of the inclined inner blanks 102, 112 of the first and second hooks 10, 11.
  • the arm 9 is positioned on the clutch rocker 1 by two guide pins 16 and held by two holding screws 13 each screwed through a corresponding groove 15 in the clutch rocker 1.
  • An eccentric 14 moves the first hook 10 of the arm 9 relative to the clutch rocker 1.
  • the adjustment of the clutch device and in particular the penetration of the teeth of the clutch wheel 2 relative to the The teeth of the chronograph wheel 4 are then as follows: in the engaged position of the clutch wheel 2, the spout 5 of the clutch rocker 2 lying between two columns 6b of the column wheel 6 and the end of the arm 9 abutting on the hook wheel 12, the holding screws 13 are first loosened, the eccentric 14 is then rotated if necessary causing the movement of the arm 9 to adjust the position of the rocker 1 and therefore the clutch wheel 2. Once found the po desired position, the holding screws 13 are tightened. The clutch rocker 1 and its arm 9 are then perfectly adjusted.
  • the chronograph mechanism is well known to those skilled in the art and may include any other traditional device (control, reset ...) unrelated to the invention.
  • the invention is not limited to a clutch device for a chronograph or to a clutch mechanism.
  • the arm 9 is elastically deformable and is carried by the clutch rocker.
  • said arm could be a rigid finger rotatable and subjected to the action of a suitable elastic force such as a spring.
  • Said finger could be pivoted on the clutch rocker. It could also be pivoted elsewhere on the movement and be arranged to be controlled by said rocker and cooperate with said rocker and with the hook wheel so that when said rocker is in its engaged position said finger prevents or limits any displacement of the rocker under the effect of a shock.
  • the invention relates to a device for a timepiece comprising a movable member (1) that can take at least two determined positions and a control member (6) cooperating with said movable member (1) to define said at least two predetermined positions.
  • the device further comprises a locking member (12) integral with the control cam (6) and an intermediate member (9) controlled by the movable member (1).
  • the intermediate member (9) is intended to cooperate with the locking member (12) and the movable member (1) to prevent or limit the displacement of said movable member (1) under the effect of a shock when the movable member (1) is in one of these determined positions, thus preventing said movable member (1) from leaving its determined position.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Measurement Of Unknown Time Intervals (AREA)
  • Mechanical Operated Clutches (AREA)

Claims (13)

  1. Vorrichtung für Uhren, die ein bewegliches Organ (1), das mindestens zwei bestimmte Stellungen einnehmen kann, und eine Schaltungskurvenscheibe (6) umfasst, die mit dem beweglichen Organ (1) zusammenwirkt, um die mindestens zwei bestimmten Stellungen zu definieren, wobei die Vorrichtung ferner ein Verriegelungsorgan (12), das mit der Schaltungskurvenscheibe (6) fest verbunden ist, und ein Zwischenorgan (9) umfasst, das durch das bewegliche Organ (1) geschaltet wird, dadurch gekennzeichnet, dass das Zwischenorgan dazu bestimmt ist, mit dem Verriegelungsorgan (12) und dem beweglichen Organ (1) zusammenzuwirken, um die Verschiebung des beweglichen Organs (1) unter der Wirkung eines Stoßes zu verhindern oder zu begrenzen, wenn sich das bewegliche Organ (1) in einer von seinen bestimmten Stellungen befindet, wodurch somit vermieden wird, dass das bewegliche Organ (1) seine bestimmte Stellung verlässt.
  2. Vorrichtung für Uhren nach Anspruch 1, dadurch gekennzeichnet, dass das bewegliche Organ ein Kupplungsorgan (1) ist, das ein Kupplungsrad (2) trägt, das eine eingekuppelte Stellung und eine ausgekuppelte Stellung einnehmen kann; dadurch, dass die Schaltungskurvenscheibe eine Kupplungskurvenscheibe (6) ist, die mit dem Kupplungsorgan (1) zusammenwirkt, um die eingekuppelte Stellung und die ausgekuppelte Stellung des Kupplungsrades (2) zu definieren; dadurch, dass das Zwischenorgan (9) durch das Kupplungsorgan (1) getragen wird und mit dem Verriegelungsorgan zusammenwirkt, um die Verschiebung des Kupplungsorgans (1) unter der Wirkung eines Stoßes zu verhindern oder zu begrenzen, wenn das Kupplungsrad (2) sich in seiner eingekuppelten Stellung befindet, wodurch somit vermieden wird, dass das Kupplungsrad (2) seine eingekuppelte Stellung verlässt.
  3. Vorrichtung nach Anspruch 2, dadurch gekennzeichnet, dass die Kupplungskurvenscheibe ein Säulenrad (6) ist.
  4. Vorrichtung nach einem der Ansprüche 2 oder 3, dadurch gekennzeichnet, dass das Verriegelungsorgan (12) ein Hakenrad (12) ist.
  5. Vorrichtung nach Anspruch 4, dadurch gekennzeichnet, dass das Hakenrad (12) koaxial zur Kupplungskurvenscheibe (6) ist.
  6. Vorrichtung nach Anspruch 3 und 4, dadurch gekennzeichnet, dass das Hakenrad (12) so viele Haken (11) aufweist wie sich Säulen (6b) auf dem Säulenrad (6) befinden.
  7. Vorrichtung nach einem der Ansprüche 4 bis 6, dadurch gekennzeichnet, dass das Zwischenorgan ein Arm (9) ist, dessen Ende die Form eines Hakens (10) aufweist.
  8. Vorrichtung nach Anspruch 7, dadurch gekennzeichnet, dass der Haken (10) des Arms (9) und die Haken (11) des Hakenrads (12) derart angepasst sind, dass ein Betriebsspiel zwischen den Haken vorhanden ist, wenn sie zusammenwirken, um die Verschiebung des Kupplungsorgans (1) unter der Wirkung eines Stoßes zu begrenzen, wenn das Kupplungsrad (2) sich in seiner eingekuppelten Stellung befindet.
  9. Vorrichtung nach Anspruch 8, dadurch gekennzeichnet, dass der Haken (10) des Armes (9) und die Haken (11) des Hakenrads (12) jeweils Innenflanken (101, 111) aufweisen, die im Wesentlichen parallel sind, wenn die Haken zusammenwirken.
  10. Vorrichtung nach Anspruch 7, dadurch gekennzeichnet, dass der Haken (10) des Arms (9) und die Haken (11) des Hakenrads (12) jeweils eine Innenflanke (102, 112) aufweisen, die derart geneigt ist, dass keinerlei Betriebsspiel zwischen den Haken vorhanden ist, wenn sie zusammenwirken, um zu verhindern, dass das Kupplungsorgan (1) sich unter der Wirkung eines Stoßes bewegt.
  11. Verfahren zur Regulierung einer Vorrichtung nach einem der Ansprüche 2 bis 10, wobei das Zwischenorgan (9) durch zwei Führungssperrstifte (16) geführt wird und mittels mindestens einer Halteschraube (13), die eine Öffnung (15) des Kupplungsorgans (1) durchquert, und eines Exzenters (14) an dem Kupplungsorgan (1) befestigt ist, dadurch gekennzeichnet, dass die eingekuppelte Stellung des Kupplungsrades (2) wie folgt geregelt werden kann:
    - von der eingekuppelten Stellung des Kupplungsrades (2) wird die Halteschraube (13) gelöst;
    - der Exzenter (14) wird nach Bedarf gedreht, wodurch die Verschiebung des Zwischenorgans (9), das durch die Führungssperrstifte (16) geführt wird, angetrieben wird, bis das Kupplungsrad (2) sich in der zweckmäßigen Stellung befindet und das Zwischenorgan sich mit dem Verriegelungsorgan (12) im Anschlag befindet;
    - die Halteschraube (13) dann wieder angezogen wird.
  12. Chronographenmechanismus, der eine Kupplungsvorrichtung nach einem der Ansprüche 2 bis 10 umfasst.
  13. Uhr, die eine Vorrichtung nach einem der Ansprüche 1 bis 10 umfasst.
EP14168485.2A 2014-05-15 2014-05-15 Chronograph Verriegelung (Vorrichtung für Uhr) Active EP2945029B1 (de)

Priority Applications (4)

Application Number Priority Date Filing Date Title
EP14168485.2A EP2945029B1 (de) 2014-05-15 2014-05-15 Chronograph Verriegelung (Vorrichtung für Uhr)
US15/122,562 US10496039B2 (en) 2014-05-15 2015-05-13 Device for a timepiece
JP2016567820A JP6527532B2 (ja) 2014-05-15 2015-05-13 時計用装置
PCT/EP2015/060713 WO2015173372A2 (fr) 2014-05-15 2015-05-13 Dispositif pour pièce d'horlogerie

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP14168485.2A EP2945029B1 (de) 2014-05-15 2014-05-15 Chronograph Verriegelung (Vorrichtung für Uhr)

Publications (2)

Publication Number Publication Date
EP2945029A1 EP2945029A1 (de) 2015-11-18
EP2945029B1 true EP2945029B1 (de) 2017-05-31

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP14168485.2A Active EP2945029B1 (de) 2014-05-15 2014-05-15 Chronograph Verriegelung (Vorrichtung für Uhr)

Country Status (4)

Country Link
US (1) US10496039B2 (de)
EP (1) EP2945029B1 (de)
JP (1) JP6527532B2 (de)
WO (1) WO2015173372A2 (de)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3324249A1 (de) * 2016-11-17 2018-05-23 Nogerah SA Kupplungssystem für chronograph
CH713473A2 (fr) * 2017-02-16 2018-08-31 Patek Philippe Sa Geneve Dispositif mécanique antichoc, notamment pour l'horlogerie.
CH714798B1 (fr) * 2018-03-19 2022-03-31 Hublot Sa Geneve Mécanisme de chronographe pour pièce d'horlogerie.
EP3786725A1 (de) * 2019-08-26 2021-03-03 Blancpain SA Entkupplung von zwei übersetzungsgetrieben
WO2023223193A1 (fr) 2022-05-16 2023-11-23 Lvmh Swiss Manufactures Sa Montre-chronographe

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2504700B1 (fr) * 1981-04-23 1985-07-05 Dodane Precia Gete Montres Systeme de commande d'une roue d'entrainement en rotation d'une aiguille de chronographe
JP2899967B1 (ja) 1998-01-07 1999-06-02 セイコーインスツルメンツ株式会社 クロノグラフ時計の発停レバーばね
EP1296205A1 (de) 2001-09-24 2003-03-26 Girard-Perregaux S.A. Chronographmechanismus
US20040024682A1 (en) * 2002-07-31 2004-02-05 Popovitch Steven Gregory Method and system for providing paid notification of item availabilty in an online marketplace
EP2073077A1 (de) * 2007-12-21 2009-06-24 Omega SA Stoßsichere vorrichtung für ein antriebsorgan eines uhrwerks
EP2228692A1 (de) 2009-03-12 2010-09-15 ETA SA Manufacture Horlogère Suisse Schaltrad für Chronograph, Chronograph und Taschenchronograph, der ein solches Rad umfasst

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Also Published As

Publication number Publication date
JP6527532B2 (ja) 2019-06-05
EP2945029A1 (de) 2015-11-18
WO2015173372A2 (fr) 2015-11-19
WO2015173372A3 (fr) 2016-01-14
US10496039B2 (en) 2019-12-03
JP2017519201A (ja) 2017-07-13
US20170068223A1 (en) 2017-03-09

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