EP0285560A1 - Chronograph watch - Google Patents

Chronograph watch 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Withdrawn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)
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/en
Withdrawn legal-status Critical Current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.

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

Abstract

The chronograph watch comprises at B the spindle of a seconds counter and at C the spindle of a minutes counter. The link between the seconds runner and that for the minutes is produced by a cam (H) located on the spindle B controlling, by means of a fork (I), the displacement in rotation of a rocker (J) about a spindle (K). The end of the rocker (J) comprises a ratchet blade (M) driving the toothing of a wheel (N) integral with the spindle C of the minutes counter. A mechanism of this type is simple to construct and does not interfere with the chronograph mechanism. <IMAGE>

Description

La présente invention concerne une montre chronographe à quartz comportant au moins une aiguille de comptage des secondes et une aiguille de comptage des minutes.The present invention relates to a quartz chronograph watch comprising at least one second counting hand and one minute counting hand.

Les montres chronographes connues comportent habituelle­ment une aiguille de comptage des secondes située au centre de la montre et des aiguilles de comptage des minutes, voire des heures, excentrées par rapport au centre de la montre. L'aiguille des secondes située au centre de la montre trouve sa raison d'être surtout dans le cas où elle a un mouvement pseudo-continu. Dans le cas des montres électroniques dans lesquelles les sauts de l'aiguille sont des secondes entières, il n'est plus nécessaire d'avoir une longue aiguille destinée à faciliter la lecture. Cette situation nouvel­le permet de déplacer l'aiguille de comptage des secon­des en un autre endroit du cadran, par exemple similaire aux compteurs des minutes ou des heures. Le déplacement de l'axe du compteur de secondes conduit à des modifica­tions dans la conception des mécanismes du chronographe.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. In the case of electronic watches in which 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.

Par exemple, le fait d'excentrer ledit axe offre la possibilité de le rapprocher du moteur de commande du chronographe. Mais d'autre part, cette disposition excentrée pose des problèmes de liaison entre l'axe du compteur des secondes et l'axe du compteur des minutes, car la distance entre ces axes se trouve sérieusement augmentée selon la position de ceux-ci.For example, the fact of offsetting said axis offers the possibility of bringing it closer to the chronograph control motor. But on the other hand, this eccentric arrangement poses connection problems between the axis of the second counter and the axis of the minute counter, because the distance between these axes is seriously increased depending on the position of these.

En conséquence, le but de la présente invention est de réaliser une montre chronographe électronique dans laquelle, indépendamment des positions relatives des axes des compteurs, la liaison entre les compteurs des secondes et des minutes est assurée par des moyens simples sans train d'engrenages. Pour atteindre ce but, la montre chronographe selon l'invention est réalisée comme décrit dans la revendication 1.Consequently, the aim of the present invention is to produce an electronic chronograph watch in which, independently of the relative positions of the axes of the counters, the connection between the seconds and minutes counters is ensured by simple means without gear train. To achieve this Aim, the chronograph watch according to the invention is produced as described in claim 1.

Sans le dispositif à came et bascule selon l'invention, la liaison et la démultiplication du mouvement entre les axes des deux compteurs mentionnés devrait se faire par un train d'engrenages très encombrant et gênant con­sidérablement le mécanisme du chronographe.Without the cam and tilt device according to the invention, the connection and the reduction of the movement between the axes of the two counters mentioned should be done by a very cumbersome train of gears which considerably interferes with the chronograph mechanism.

La figure unique montre une réalisation non exclusive de l'invention. Pour des raisons de clarté et de compré­hension du dessin, les éléments usuels du mécanisme chronographe ne sont pas représentés.The single figure shows a non-exclusive embodiment of the invention. For reasons of clarity and understanding of the drawing, the usual elements of the chronograph mechanism are not shown.

Soit A le centre de la montre, B le centre du compteur de secondes, C le centre du compteur de minutes. La distance entre les axes B et C est grande, sensiblement le double de ce qu'elle serait si le compteur de secon­des B était situé au centre de la montre. L'axe du compteur de secondes B est entraîné par un train d'en­grenages D - E, F - G, l'axe du pignon G étant l'axe d'un micromoteur non représenté. Si le micromoteur est du type pas à pas et qu'il effectue un pas par secondes, le train d'engrenages est réalisé de manière que l'axe B du compteur de secondes fasse un tour en 60 secondes, soit une minute. Sur cet axe B est fixée une came H commandant par une fourchette I le déplacement en rotation d'une bascule J pivotée en K. Sur l'extrémité L de cette bascule est fixée une lame-cliquet M entraî­nant la denture d'une roue N solidaire de l'axe C du compteur de minutes. Une lame-cliquet O, solidaire du bâti de la montre (non représenté), empêche un mou­vement rétrograde de la roue N. La valeur de l'excentri­cité de la came H et le rapport des bras de levier de la bascule J sont calculés de manière que la roue N avan­ce d'une dent par rotation de la roue D, soit d'une dent par minute. Le nombre de dents de la roue N détermine le nombre de minutes que l'on désire compter par tour de la roue N.Let A be the center of the watch, B the center of the seconds counter, C the center of the minutes counter. The distance between axes B and C is large, roughly double what it would be if the second counter B was located in the center of the watch. The axis of the second counter B is driven by a gear train D - E, F - G, the axis of the pinion G being the axis of a micromotor not shown. If the micromotor is of the step-by-step type and it performs one step per second, the gear train is produced so that the axis B of the second counter makes one revolution in 60 seconds, ie one minute. On this axis B is fixed a cam H controlling by a fork I the rotational movement of a rocker J pivoted in K. On the end L of this rocker is fixed 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.

Comme dans tout chronographe habituel, des coeurs (non représentés) sont fixés sur les axes B et C des comp­teurs, ces coeurs permettant par l'action de bascules, la remise à zéro des compteurs. Cette remise à zéro peut se faire dans les deux directions. Il est clair que les cliquets M et O doivent être en mesure de libérer la roue N dans le sens rétrograde, le cliquet O assurant cependant la retenue de la roue lorsque le cliquet M recule sur la denture.As in any usual chronograph, hearts (not shown) are fixed on the axes B and C of the counters, these hearts allowing by the action of rockers, the resetting of the counters. This reset can be done in both directions. It is clear that the pawls M and O must be able to release the wheel N in the retrograde direction, the pawl O however ensuring the retention of the wheel when the pawl M backs up on the teeth.

Une variante de l'invention consiste à réaliser la came H en forme de colimaçon sur 360°, ce qui nécessite un ressort de rappel de la bascule tout en assurant une progression continue de l'aiguille du compteur de minutes.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.

Une autre variante de l'invention consiste à réaliser des cliquets articulés en lieu et place des lames-­cliquet M et O.Another variant of the invention consists in making articulated pawls in place of the ratchet blades M and O.

Il est clair que le dispositif décrit peut s'appliquer identiquement pour assurer le comptage des heures à partir du compteur de minutes.It is clear that the device described can be applied identically to count the hours from the minute counter.

Claims (9)

1. Montre chronographe à quartz comportant au moins une aiguille de comptage des secondes et une aiguille de comptage des minutes, caractérisée en ce que les mobiles affichant les secondes et les minutes sont situés dans des endroits (B,C) quelconques du mouvement et que le mobile des secondes commande l'entraînement du mobile des minutes à l'aide d'une came (H) liée à une bascule (J) porteuse d'un élément d'entraînement (M) d'une roue (N) du mobile des minutes.1. Quartz chronograph watch comprising at least one second counting hand and one minute counting hand, characterized in that the mobiles displaying the seconds and the minutes are located in any places (B, C) of the movement and that the seconds mobile controls the driving of the minutes mobile using a cam (H) linked to a rocker (J) carrying a drive element (M) of a wheel (N) of the mobile minutes. 2. Montre selon la revendication 1, caractérisée en ce que ladite came (H) du mobile des secondes est un excentrique coopérant avec une fourchette (I) de la bascule (J) portant l'élément d'entraînement (M).2. Watch according to claim 1, characterized in that said cam (H) of the seconds mobile is an eccentric cooperating with a fork (I) of the rocker (J) carrying the drive element (M). 3. Montre selon la revendication 1, caractérisée en ce que ladite came (H) du mobile des secondes est un colimaçon coopérant avec la bascule (J) de l'élément d'entraînement (M) afin de déplacer la bascule (J) progressivement dans un sens pendant sa rotation sur un angle d'environ 360° et de relâcher brusquement la bascule après une rotation d'un tour, la bascule (J) étant soumise à l'action d'un élément élastique de rappel.3. Watch according to claim 1, characterized in that said cam (H) of the seconds mobile is a spiral cooperating with the rocker (J) of the drive element (M) in order to move the rocker (J) gradually in one direction during its rotation over an angle of approximately 360 ° and abruptly releasing the rocker after a rotation of one revolution, the rocker (J) being subjected to the action of an elastic return element. 4. Montre selon l'une des revendications 1 à 3, carac­térisée en ce que les mobiles d'affichage des secondes et des minutes forment sur le cadran avec le centre de la montre un angle d'environ 180°.4. Watch according to one of claims 1 to 3, characterized in that the mobile seconds and minutes display form on the dial with the center of the watch an angle of about 180 °. 5. Montre selon l'une des revendications 1 à 3, carac­térisée en ce que les mobiles d'affichage des secondes et des minutes forment sur le cadran avec le centre de la montre un angle d'environ 90°.5. Watch according to one of claims 1 to 3, characterized in that the mobile display seconds and minutes form on the dial with the center of the watch an angle of about 90 °. 6. Montre selon l'une des revendications 1 à 3, carac­térisée en ce que les mobiles d'affichage des secondes et des minutes forment sur le cadran avec le centre de la montre un angle d'environ 120°.6. Watch according to one of claims 1 to 3, characterized in that the mobile seconds and minutes display form on the dial with the center of the watch an angle of about 120 °. 7. Montre selon l'une des revendications 1 à 3, carac­térisée en ce que le mobile d'affichage des secondes est situé au centre de la montre.7. Watch according to one of claims 1 to 3, characterized in that the second display mobile is located in the center of the watch. 8. Montre selon l'une des revendications 1 à 7, carac­térisée en ce que l'élément d'entraînement (M) de la roue (N) du mobile des minutes, solidaire de la bascule (J), est une lame élastique, une seconde lame élastique (O) solidaire du bâti de la montre assurant le posi­tionnement et la retenue de ladite roue (N).8. Watch according to one of claims 1 to 7, characterized in that the drive element (M) of the wheel (N) of the minute wheel, secured to the rocker (J), is an elastic blade, a second elastic blade (O) integral with the frame of the watch ensuring the positioning and the retention of said wheel (N). 9. Montre selon l'une des revendications 1 à 7, carac­térisée en ce que l'élément d'entraînement (M) de la roue (N) du mobile des minutes, solidaire de la bascule, est un cliquet pivotant soumis à l'action d'une lame élastique de rappel, un second cliquet pivotant solidai­re du bâti de la montre et soumis à l'action d'une seconde lame élastique assurant le positionnement et la retenue de la roue (N).9. Watch according to one of claims 1 to 7, characterized in that the drive element (M) of the wheel (N) of the minute wheel, secured to the rocker, is a pivoting pawl subjected to the action of an elastic return blade, a second pivoting pawl secured to the watch frame and subjected to the action of a second elastic blade ensuring the positioning and retention of the wheel (N).
EP88810170A 1987-04-02 1988-03-17 Chronograph watch Withdrawn EP0285560A1 (en)

Applications Claiming Priority (2)

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

Publications (1)

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EP0285560A1 true EP0285560A1 (en) 1988-10-05

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ID=4206229

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Application Number Title Priority Date Filing Date
EP88810170A Withdrawn EP0285560A1 (en) 1987-04-02 1988-03-17 Chronograph watch

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EP (1) EP0285560A1 (en)
CH (1) CH671492B5 (en)

Cited By (1)

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

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH54709A (en) * 1911-02-13 1912-06-17 Robert Cart Device for actuating a toothed wheel by a swivel lever
CH318231A (en) * 1954-02-10 1957-02-15 Bulova Watch Co Inc Snap-in to transform the vibrations of a mechanical vibrator into a rotary movement to control a clockwork mechanism
CH497725A (en) * 1962-01-31 1964-12-31 Straumann Inst Ag Drive for a timing device driven by audio-frequency, translational oscillations
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 (en) * 1911-02-13 1912-06-17 Robert Cart Device for actuating a toothed wheel by a swivel lever
CH318231A (en) * 1954-02-10 1957-02-15 Bulova Watch Co Inc Snap-in to transform the vibrations of a mechanical vibrator into a rotary movement to control a clockwork mechanism
CH497725A (en) * 1962-01-31 1964-12-31 Straumann Inst Ag Drive for a timing device driven by audio-frequency, translational oscillations
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 (en) 2002-10-04 2010-07-28 에타 쏘시에떼 아노님 마누팍투레 홀로게레 스위세 Chronograph coupling mechanism

Also Published As

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

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