EP0285560A1 - Montre chronographe - Google Patents

Montre chronographe Download PDF

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Publication number
EP0285560A1
EP0285560A1 EP88810170A EP88810170A EP0285560A1 EP 0285560 A1 EP0285560 A1 EP 0285560A1 EP 88810170 A EP88810170 A EP 88810170A EP 88810170 A EP88810170 A EP 88810170A EP 0285560 A1 EP0285560 A1 EP 0285560A1
Authority
EP
European Patent Office
Prior art keywords
watch
rocker
mobile
seconds
wheel
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Withdrawn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
EP88810170A
Other languages
German (de)
English (en)
French (fr)
Inventor
Norbert Perucchi
André Cachin
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.)
Roventa-Henex SA
Roventa Henex SA
Original Assignee
Roventa-Henex SA
Roventa Henex 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 Roventa-Henex SA, Roventa Henex SA filed Critical Roventa-Henex SA
Publication of EP0285560A1 publication Critical patent/EP0285560A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G04—HOROLOGY
    • G04F—TIME-INTERVAL MEASURING
    • G04F8/00—Apparatus for measuring unknown time intervals by electromechanical means
    • G04F8/003—Apparatus for measuring unknown time intervals by electromechanical means using continuously running driving means
    • 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
    • G04B11/02—Devices allowing the motion of a rotatable part in only one direction
    • G04B11/04—Pawl constructions therefor, e.g. pawl secured to an oscillating member actuating a ratchet
    • 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

Definitions

  • the present invention relates to a quartz chronograph watch comprising at least one second counting hand and one minute counting hand.
  • Known chronograph watches usually include a second counting hand located in the center of the watch and minute or even hour counting hands, offset from the center of the watch.
  • the seconds hand located in the center of the watch finds its reason for being especially in the case where it has a pseudo-continuous movement.
  • the jumps of the hand are whole seconds, it is no longer necessary to have a long hand intended to facilitate reading.
  • This new situation makes it possible to move the second counting hand to another place on the dial, for example similar to the minute or hour counters.
  • the displacement of the seconds counter axis leads to modifications in the design of the chronograph mechanisms.
  • a ratchet blade M driving the teeth of a wheel N secured to axis C of the minute counter.
  • a ratchet blade O integral with the watch frame (not shown), prevents retrograde movement of the wheel N.
  • the value of the cam eccentricity H and the ratio of the lever arms of the rocker J are calculated from so that the wheel N advances by one tooth per rotation of the wheel D, or one tooth per minute. The number of teeth on wheel N determines the number of minutes you want to count per revolution of wheel N.
  • a variant of the invention consists in making the cam H in the shape of a spiral on 360 °, which requires a return spring of the rocker while ensuring a continuous progression of the hand of the minute counter.
  • Another variant of the invention consists in making articulated pawls in place of the ratchet blades M and O.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Measurement Of Unknown Time Intervals (AREA)
EP88810170A 1987-04-02 1988-03-17 Montre chronographe Withdrawn EP0285560A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH1260/87 1987-04-02
CH1260/87A CH671492B5 (enrdf_load_stackoverflow) 1987-04-02 1987-04-02

Publications (1)

Publication Number Publication Date
EP0285560A1 true EP0285560A1 (fr) 1988-10-05

Family

ID=4206229

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88810170A Withdrawn EP0285560A1 (fr) 1987-04-02 1988-03-17 Montre chronographe

Country Status (2)

Country Link
EP (1) EP0285560A1 (enrdf_load_stackoverflow)
CH (1) CH671492B5 (enrdf_load_stackoverflow)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100972914B1 (ko) 2002-10-04 2010-07-28 에타 쏘시에떼 아노님 마누팍투레 홀로게레 스위세 크로노그래프 연결기구

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH54709A (fr) * 1911-02-13 1912-06-17 Robert Cart Dispositif pour l'actionnement d'une roue dentée par un levier pivotant
CH318231A (fr) * 1954-02-10 1957-02-15 Bulova Watch Co Inc Encliquetage pour transformer les vibrations d'un vibreur mécanique en mouvement rotatoire pour la commande d'un mécanisme d'horlogerie
CH497725A (de) * 1962-01-31 1964-12-31 Straumann Inst Ag Antrieb für ein mit tonfrequenten, translatorischen Oszillationen angetriebenes Zeitmessgerät
US3504206A (en) * 1968-08-27 1970-03-31 Hamilton Watch Co Indexing mechanism

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH54709A (fr) * 1911-02-13 1912-06-17 Robert Cart Dispositif pour l'actionnement d'une roue dentée par un levier pivotant
CH318231A (fr) * 1954-02-10 1957-02-15 Bulova Watch Co Inc Encliquetage pour transformer les vibrations d'un vibreur mécanique en mouvement rotatoire pour la commande d'un mécanisme d'horlogerie
CH497725A (de) * 1962-01-31 1964-12-31 Straumann Inst Ag Antrieb für ein mit tonfrequenten, translatorischen Oszillationen angetriebenes Zeitmessgerät
US3504206A (en) * 1968-08-27 1970-03-31 Hamilton Watch Co Indexing mechanism

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100972914B1 (ko) 2002-10-04 2010-07-28 에타 쏘시에떼 아노님 마누팍투레 홀로게레 스위세 크로노그래프 연결기구

Also Published As

Publication number Publication date
CH671492GA3 (enrdf_load_stackoverflow) 1989-09-15
CH671492B5 (enrdf_load_stackoverflow) 1990-03-15

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