EP2221678A1 - Vorrichtung zum Blockieren eines Resonators in einer Uhr - Google Patents

Vorrichtung zum Blockieren eines Resonators in einer Uhr Download PDF

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Publication number
EP2221678A1
EP2221678A1 EP09153516A EP09153516A EP2221678A1 EP 2221678 A1 EP2221678 A1 EP 2221678A1 EP 09153516 A EP09153516 A EP 09153516A EP 09153516 A EP09153516 A EP 09153516A EP 2221678 A1 EP2221678 A1 EP 2221678A1
Authority
EP
European Patent Office
Prior art keywords
shaft
balance
cam
lever
heart
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Withdrawn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
EP09153516A
Other languages
English (en)
French (fr)
Inventor
Dominique Léchot
Alain Zaugg
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Montres Breguet SA
Original Assignee
Montres Breguet 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 Breguet SA filed Critical Montres Breguet SA
Priority to EP09153516A priority Critical patent/EP2221678A1/de
Publication of EP2221678A1 publication Critical patent/EP2221678A1/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Withdrawn legal-status Critical Current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
    • G04B27/00—Mechanical devices for setting the time indicating means
    • G04B27/004—Mechanical devices for setting the time indicating means having several simultaneous functions, e.g. stopping or starting the clockwork or the hands
    • 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
    • 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

Definitions

  • the present invention relates to a device for blocking a resonator of a timepiece, this resonator being composed of a balance associated with a spiral spring.
  • Such a device can also be envisaged if it is desired to set the second hand of a simple mechanical watch by means of the top diffused by the time signal. In this case we stop the second hand at noon and we release the arrival of the top time.
  • the blocking devices which have just been mentioned have at least two disadvantages.
  • the first drawback is that the rocker can be stopped by the pin in a random angular position including a position for which the spiral is in neutral, that is to say fully relaxed and thus having no contraction or expansion.
  • This situation is usually present when the rocker is immobilized with a plateau pin located on the exhaust line, that is to say located on a straight line connecting the shaft of which is equipped with the balance and the shaft bearing the escape wheel.
  • the spiral has zero potential energy and it will be understood that it is then unable to drive the pendulum when the pin is released from said beam. There is therefore a risk of not starting the mechanism.
  • the second disadvantage also stems from the random angular position taken by the pendulum at the time of its stop. If the spiral has at this moment a non-zero potential energy, this energy will depend on the angular position of the balance when it stops. Thus when starting said pendulum its amplitude will be variable and not constant in time from which it may result in inaccuracies in the running of the timepiece.
  • the present invention in addition to that which is explained in the first paragraph of this description is original in that a shape cam is mounted integral with a shaft which carries the pendulum and in that a lever, when actuated manually, is supported on the flanks that the cam has to cause the rocker to stop in a predetermined angular position for which the spiral has a potential energy non-zero.
  • FIGS. 1 to 3 show according to which principle device a resonator 1 can be blocked.
  • This resonator is composed of a rocker 2 associated with a spiral spring 3, this spiral is not shown in the drawings so as not to overload the figures.
  • a cam 4 of form is mounted integral with a shaft 5 which carries the rocker 2 and a lever 6, when manually actuated, bears on the flanks 7 that the cam 4 to bring the balance to stopping in a specific angular position for which the spiral 3 has a potential energy non-zero.
  • the rocker 3 oscillates freely, the lever 6 being out of reach of the cam 4.
  • the lever 6 bears on the cam 4 and causes this cam and the pendulum which is linked to it to stop in the determined position shown in FIG. figure 3 .
  • the shape cam 4 is a core 8 and the lever 6 which acts on the core 8 is a hammer 9, core 8 and hammer 9 being of common use in the chronograph mechanisms.
  • a shaft 5 carries the balance 2.
  • the shaft 5 also carries a plate 10 which in turn carries a pin 11 arranged as is well known, to cooperate with an anchor 12 which cooperates with an escape wheel 13.
  • the wheel 13 is carried by a shaft 14.
  • the hairspring 3 has zero potential energy if the rocker 2 is immobilized when the peg 11 of the plate is on a straight line starting from the shaft 5 of the rocker 2 and ending in the shaft 14 of the escape wheel 13. At this time and as stated in the introductory paragraphs of this description, the hairspring 3 is completely relaxed and shows neither expansion nor contraction. It is therefore necessary to bring the balance to stop in an angular position to which the spiral has a potential energy non-zero, position for which the reboot of the balance is ensured.
  • the balance 2 is in a situation which is opposed to the critical situation which is that of an ankle 11 located on the exhaust line that is that is to say on a straight line from the shaft 5 of the balance wheel to the shaft 14 of the escape wheel.
  • the blocking sought therefore occurs for an anchor 11 of the plate being shifted more or less 180 degrees from this critical situation, that is to say when the spiral 3 is respectively in contraction or expansion.
  • the figure 1 shows a rocker 2 oscillating freely, the hammer 9 being spaced from the trajectory of the heart 8.
  • the hammer 9 is articulated on an axis 20 and is controlled via a toggle joint 23 by a lever 24 articulated on an axis 25.
  • the end of the lever 24 cooperates for example with a column wheel (not shown) and is supported on one of the columns of said wheel.
  • a new pressing on the pusher of the timepiece will turn the column wheel so that the end of the lever 24 will be positioned on one of the columns of said wheel to rotate said lever 24 in the direction of the arrow 29 shown in figure 1 .
  • the hammer 9 will then rotate in the direction of the arrow 30 to release the heart 8 and the pendulum 2 which is related thereto.
  • the device described in detail above can be used in a chronograph and more particularly in a sports counter called three times. Instead of a column wheel can be implemented a cam.
  • This same device can also be used in an ordinary watch having a second hand.
  • the device allows setting the time to the nearest second of this watch. Indeed, the second hand can be stopped on the zero division of the dial for example by pulling the winding stem, then restarting by pushing the rod at the arrival of the top emitted by the time signal.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Measurement Of Unknown Time Intervals (AREA)
EP09153516A 2009-02-24 2009-02-24 Vorrichtung zum Blockieren eines Resonators in einer Uhr Withdrawn EP2221678A1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP09153516A EP2221678A1 (de) 2009-02-24 2009-02-24 Vorrichtung zum Blockieren eines Resonators in einer Uhr

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP09153516A EP2221678A1 (de) 2009-02-24 2009-02-24 Vorrichtung zum Blockieren eines Resonators in einer Uhr

Publications (1)

Publication Number Publication Date
EP2221678A1 true EP2221678A1 (de) 2010-08-25

Family

ID=40933642

Family Applications (1)

Application Number Title Priority Date Filing Date
EP09153516A Withdrawn EP2221678A1 (de) 2009-02-24 2009-02-24 Vorrichtung zum Blockieren eines Resonators in einer Uhr

Country Status (1)

Country Link
EP (1) EP2221678A1 (de)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020152578A1 (fr) 2019-01-23 2020-07-30 Patek Philippe Sa Geneve Mouvement de piece d'horlogerie
CN114290268A (zh) * 2021-12-11 2022-04-08 中航洛阳光电技术有限公司 一种光学元件自动装配的快装零点定位装置与方法
EP4296793A1 (de) * 2022-06-20 2023-12-27 Montres Breguet S.A. Stoppmechanismus zum anhalten oder freigeben eines beweglichen teils eines reguliermechanismus für uhren oder chronographen

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB262426A (de) * 1925-12-04 1927-03-17 Adamir Marchand
US3034285A (en) * 1959-02-09 1962-05-15 Hamilton Watch Co Balance wheel actuating mechanism
GB1013919A (en) * 1962-02-20 1965-12-22 Seiko Instr & Electronics Stopwatch or the like
DE1923890A1 (de) 1968-05-10 1970-02-12 Charier Vadrot Pierre Aromatische Substanzen
US3667212A (en) * 1970-04-20 1972-06-06 Citizen Watch Co Ltd Resetting-to-zero mechanisms for seconds, minute, and hour hands
US3817024A (en) * 1971-12-13 1974-06-18 Citizen Watch Co Ltd Time-setter for an electronic timepiece

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB262426A (de) * 1925-12-04 1927-03-17 Adamir Marchand
US3034285A (en) * 1959-02-09 1962-05-15 Hamilton Watch Co Balance wheel actuating mechanism
GB1013919A (en) * 1962-02-20 1965-12-22 Seiko Instr & Electronics Stopwatch or the like
DE1923890A1 (de) 1968-05-10 1970-02-12 Charier Vadrot Pierre Aromatische Substanzen
US3667212A (en) * 1970-04-20 1972-06-06 Citizen Watch Co Ltd Resetting-to-zero mechanisms for seconds, minute, and hour hands
US3817024A (en) * 1971-12-13 1974-06-18 Citizen Watch Co Ltd Time-setter for an electronic timepiece

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
B. HUMBERT: "Le Chronographe", 1990, SCRIPTAR SA, LA CONVERSION, pages: 143

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020152578A1 (fr) 2019-01-23 2020-07-30 Patek Philippe Sa Geneve Mouvement de piece d'horlogerie
CN114290268A (zh) * 2021-12-11 2022-04-08 中航洛阳光电技术有限公司 一种光学元件自动装配的快装零点定位装置与方法
CN114290268B (zh) * 2021-12-11 2023-05-02 中航洛阳光电技术有限公司 一种光学元件自动装配的快装零点定位装置与方法
EP4296793A1 (de) * 2022-06-20 2023-12-27 Montres Breguet S.A. Stoppmechanismus zum anhalten oder freigeben eines beweglichen teils eines reguliermechanismus für uhren oder chronographen

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