EP1243984A1 - Clockwork - Google Patents

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Publication number
EP1243984A1
EP1243984A1 EP01107013A EP01107013A EP1243984A1 EP 1243984 A1 EP1243984 A1 EP 1243984A1 EP 01107013 A EP01107013 A EP 01107013A EP 01107013 A EP01107013 A EP 01107013A EP 1243984 A1 EP1243984 A1 EP 1243984A1
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EP
European Patent Office
Prior art keywords
mobile
movement
chronograph
seconds
frame
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
EP01107013A
Other languages
German (de)
French (fr)
Other versions
EP1243984B1 (en
Inventor
Gerd-Rüdiger M.Lang
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.)
Chronoswiss Uhren GmbH
Original Assignee
Chronoswiss Uhren GmbH
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 Chronoswiss Uhren GmbH filed Critical Chronoswiss Uhren GmbH
Priority to AT01107013T priority Critical patent/ATE418752T1/en
Priority to EP01107013A priority patent/EP1243984B1/en
Priority to DE60137113T priority patent/DE60137113D1/en
Priority to PCT/IB2002/000591 priority patent/WO2002075460A1/en
Priority to US10/472,371 priority patent/US7085199B2/en
Priority to JP2002574005A priority patent/JP4351448B2/en
Publication of EP1243984A1 publication Critical patent/EP1243984A1/en
Application granted granted Critical
Publication of EP1243984B1 publication Critical patent/EP1243984B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • G04B31/00—Bearings; Point suspensions or counter-point suspensions; Pivot bearings; Single parts therefor
    • G04B31/004—Bearings; Point suspensions or counter-point suspensions; Pivot bearings; Single parts therefor characterised by the material used
    • G04B31/012—Metallic bearings
    • G04B31/0123—Metallic bearings with metallic ball bearings and metallic roller bearings
    • 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
    • G04B19/00—Indicating the time by visual means
    • G04B19/02—Back-gearing arrangements between gear train and 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
    • G04F7/0823—Watches or clocks with stop devices, e.g. chronograph with couplings between the chronograph mechanism and the base movement
    • 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
    • G04F7/0885—Modular constructions involving interchangeability with one or more chronograph modules on a single base movement

Definitions

  • the present invention relates to watch movements of the type comprising a frame and a gear train formed of movable mounted pivoting on the frame.
  • a first of these mobiles is provided with a tigeron intended to receive a first needle
  • a second of these mobile is equipped with a cannon arranged coaxially with the tigeron and intended for receive a second needle.
  • Practically all watches with display by needles have these characteristics.
  • Their movement more precisely comprises a cog formed by a timer a carriageway, a timer mobile and an hour wheel.
  • This cog ensures a division by twelve.
  • the roadway is friction mounted on a mobile minutes, performing one revolution per hour. Its end is provided with a tigeron on which it is possible to drive out a hand, intended to display the minutes.
  • the hour wheel is fitted with a barrel mounted to rotate freely on the floor. It makes a tour in twelve hours in the same direction as the floor, and carries a hand to display the hours.
  • the movement according to the invention is characterized in that the second mobile is mounted, mobile in rotation, on the frame by means of a ball bearing.
  • the bearing comprises a core, a ring and balls arranged between the core and the ring, the ring being rigidly fixed to the frame and the core to the second mobile, for example by force, by driving on the gun.
  • the movement includes a mechanism of the type chronograph with a chronograph cog comprising a mobile of seconds, formed by the second mobile.
  • the positions of the various components arranged on and next to the watch face are defined with reference to the position that would occupy an hour hand turning on an axis passing through the center of the dial.
  • the watch shown in Figure 1 includes a box 10 defining a housing in which a watch movement is arranged, which will be described in reference to figure 2.
  • This movement carries a round dial 12 and hands 14 hours, 16 minutes, 18 seconds and seconds of chronograph 20.
  • I1 is controlled by a crown 22 arranged at three o'clock and by a pusher 24 coaxial with the crown 22.
  • the 14 and 18 second hands are off-center, respectively arranged at noon and six o'clock.
  • the needles minutes 16 and chronograph seconds 20 are coaxial with the dial.
  • the movement comprises a frame, formed of a plate 26, of bridges, in particular of a bridge finishing 28, center bridge 30, timer bridge 32 and bridge chronograph 34, this frame being intended to serve as a support for the various parts movement mobiles.
  • This movement includes an energy source supplying a balance by through a gear train comprising moving bodies with center 36, average of 38 and 40 seconds in the center, and an exhaust that was not shown in that it is not part of the invention.
  • These mobiles include each a wheel identified by the reference a and a pinion bearing the reference b.
  • the center wheel 36 carries, friction mounted, a roadway 42, provided with a tigeron 42a intended to carry the minute hand 16, and which forms the first mobile of a cog timer.
  • the latter also includes a reference 44 meshing with a timer mobile, which cooperates with a cannon wheel, bearing the hour hand 14. The timer mobile, nor the cannon wheel are only visible in the drawing.
  • the cog of this movement also includes a small second gear 46, an oscillating pinion 48 and a chronograph seconds wheel 50.
  • the small second gear is engaged with the medium wheel 38a. It is for carrying the second hand 18.
  • the oscillating pinion 48 is provided with two teeth respectively identified by the letters a and b and meshing respectively with the seconds wheel 40a and with the chronograph seconds wheel 50. It is mounted in bearings which comprise the finishing bridge 28 and a rocker 52. The latter is integral with the plate 26, on which it can pivot, and controlled by a chronograph mechanism which will not be described in detail, since it is well known to those skilled in the art, itself actuated by pusher 24.
  • the lever 52 When the lever 52 pivots, it laterally drives the pinion of the pinion 48, so that, according to the direction of movement, its toothing 48b emerges from or meshes with the teeth of the wheel 50.
  • the pinion 48 and the rocker 52 form, together, a clutch connecting or not kinematically the center seconds wheel 40a to the chronograph seconds wheel 50.
  • the chronograph seconds wheel 50 is arranged coaxial with the roadway 42. It is formed by a plate identified by the letter a , which meshes with the teeth 48b, a barrel b , engaged on the roadway 42 and carrying the chronograph seconds hand 20, and a heart c , the function of which will be specified below and which, adjoining the plate 50a, is made in one piece with the barrel 50b. It is pivotally mounted on the chronograph bridge 34 by means of a ball bearing 54. The latter is formed of a ring 54a fixed on the chronograph bridge 34 by means of a key not shown in the drawing, of a core 54b, driven out of the barrel 50b, and balls 54c arranged, in a conventional manner, between the ring and the core.
  • the heart 50c is intended to cooperate with a hammer, part of the mechanism chronograph mentioned above, which ensures, in a well known manner of skilled in the art, zeroing the 20 second hand chronograph.
  • the watch movement as described above can be carried out from of a classic mechanical watch movement, of the type allowing either seconds display at six o'clock, in the center.
  • This basic movement is supplemented by a modified timer train allowing the wheel to be placed cannon at noon and a chronograph module attached to the base movement, between plate 26 and dial 12.
  • the only major change made to the basic movement refers to the addition of the oscillating pinion 48, which must reduce the movement of the seconds wheel 40a to the seconds wheel of chronograph.
  • the movement as described can be the subject of numerous variants, without so far out of the invention. It is thus entirely conceivable to carry out a watch in which the hour hand is concentric with the hand minutes. In this case, the cannon wheel would be interposed between the roadway 42 and the chronograph seconds wheel 50.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Measurement Of Unknown Time Intervals (AREA)
  • Electromechanical Clocks (AREA)
  • Magnetic Heads (AREA)

Abstract

The watch movement has wheel trains which drive an inner moving shaft (42) with spindle (42a) to bear a minute hand and a concentric member (50) with a sleeve (50b) to rotate a chronographic second hand. The concentric member is gripped within a central element (54b) which is supported by a ring (54a) and balls (54c). The ring is secured to the watch movement case by a pin

Description

La présente invention se rapporte aux mouvements de montres du type comportant un bâti et un train d'engrenages formé de mobiles montés pivotant sur le bâti. Dans ce mouvement, un premier de ces mobiles est muni d'un tigeron destiné à recevoir une première aiguille alors qu'un deuxième de ces mobiles est muni d'un canon disposé coaxialement au tigeron et destiné à recevoir une deuxième aiguille. Pratiquement toutes les montres à affichage par aiguilles présentent ces caractéristiques.The present invention relates to watch movements of the type comprising a frame and a gear train formed of movable mounted pivoting on the frame. In this movement, a first of these mobiles is provided with a tigeron intended to receive a first needle whereas a second of these mobile is equipped with a cannon arranged coaxially with the tigeron and intended for receive a second needle. Practically all watches with display by needles have these characteristics.

Leur mouvement comporte plus précisément un rouage de minuterie formé d'une chaussée, d'un mobile de minuterie et d'une roue des heures. Ce rouage assure une division par douze. La chaussée est montée à friction sur un mobile des minutes, effectuant un tour par heure. Son extrémité est munie d'un tigeron sur lequel il est possible de chasser une aiguille, destinée à afficher les minutes.Their movement more precisely comprises a cog formed by a timer a carriageway, a timer mobile and an hour wheel. This cog ensures a division by twelve. The roadway is friction mounted on a mobile minutes, performing one revolution per hour. Its end is provided with a tigeron on which it is possible to drive out a hand, intended to display the minutes.

La roue des heures est munie d'un canon monté libre en rotation sur la chaussée. Elle effectue un tour en douze heures dans le même sens que la chaussée, et porte une aiguille destinée à afficher les heures.The hour wheel is fitted with a barrel mounted to rotate freely on the floor. It makes a tour in twelve hours in the same direction as the floor, and carries a hand to display the hours.

La superposition de deux mobiles tournant à des vitesses différentes implique obligatoirement des frottements importants, qui peuvent, toutefois, être acceptés lorsque les mouvements relatifs des mobiles superposés sont lents.The superimposition of two mobiles rotating at different speeds implies obligatory significant frictions, which can, however, be accepted when the relative movements of the superimposed mobiles are slow.

Or, dans certaines applications, dans lesquelles la vitesse de rotation peut atteindre un tour par minute, par exemple, il est important de réduire au minimum les pertes par frottement.However, in certain applications, in which the speed of rotation can achieve one revolution per minute, for example, it is important to reduce the minimum friction losses.

Le but de la présente invention est de réduire ces pertes. A cet effet, le mouvement selon l'invention est caractérisé en ce que le deuxième mobile est monté, mobile en rotation, sur le bâti au moyen d'un roulement à billes. The object of the present invention is to reduce these losses. To this end, the movement according to the invention is characterized in that the second mobile is mounted, mobile in rotation, on the frame by means of a ball bearing.

De manière avantageuse, le roulement comprend un noyau, une bague et des billes disposées entre le noyau et la bague, la bague étant fixée rigidement au bâti et le noyau au deuxième mobile, par exemple à force, par chassage sur le canon.Advantageously, the bearing comprises a core, a ring and balls arranged between the core and the ring, the ring being rigidly fixed to the frame and the core to the second mobile, for example by force, by driving on the gun.

Une telle solution présente un intérêt particulier quand le deuxième mobile, lorsqu'il est en mouvement, est animé d'une vitesse angulaire supérieure à celle du premier mobile.Such a solution is of particular interest when the second mobile, when in motion, has an angular speed greater than that of the first mobile.

C'est notamment le cas lorsque le mouvement comporte un mécanisme de type chronographe avec un rouage de chronographe comportant un mobile des secondes, formé par le deuxième mobile.This is particularly the case when the movement includes a mechanism of the type chronograph with a chronograph cog comprising a mobile of seconds, formed by the second mobile.

Dans une forme de réalisation particulière, le train d'engrenages du mouvement comprend un mobile de secondes, effectuant un tour par minute, alors que le mouvement comporte, en outre:

  • un embrayage susceptible d'occuper des première et seconde positions, et muni d'un renvoi disposé sur l'embrayage et reliant cinématiquement le mobile des secondes au deuxième mobile lorsque l'embrayage occupe la seconde position, et
  • des moyens de commande pour mouvoir l'embrayage de l'une à l'autre des positions.
Grâce à cette configuration particulière, il est possible de placer le mécanisme de chronographe du côté du mouvement qui est agencé pour recevoir les aiguilles. De sorte, les mobiles de ce mécanisme ne doivent pas traverser le mouvement de part en part. Il est ainsi plus facile de réaliser un module complémentaire sur la base d'un mouvement existant. In a particular embodiment, the gear train of the movement comprises a seconds mobile, performing one revolution per minute, while the movement also comprises:
  • a clutch capable of occupying first and second positions, and provided with a reference arranged on the clutch and kinematically connecting the second mobile to the second mobile when the clutch occupies the second position, and
  • control means for moving the clutch from one to the other of the positions.
Thanks to this particular configuration, it is possible to place the chronograph mechanism on the side of the movement which is arranged to receive the hands. So the mobiles of this mechanism must not go through the movement right through. It is thus easier to make an additional module on the basis of an existing movement.

D'autres avantages et caractéristiques de l'invention ressortiront de la description qui va suivre, faite en regard du dessin annexé, dans lequel:

  • la figure 1 représente une montre équipée d'un mouvement selon l'invention, et
  • la figure 2 montre, en coupe, une partie d'un mouvement selon l'invention.
Other advantages and characteristics of the invention will emerge from the description which follows, given with reference to the appended drawing, in which:
  • FIG. 1 represents a watch equipped with a movement according to the invention, and
  • Figure 2 shows, in section, part of a movement according to the invention.

Dans la description qui suit, les positions des différents composants disposés sur et en regard du cadran de la montre sont définies en référence à la position qu'occuperait une aiguille des heures tournant sur un axe passant par le centre du cadran.In the following description, the positions of the various components arranged on and next to the watch face are defined with reference to the position that would occupy an hour hand turning on an axis passing through the center of the dial.

La montre représentée à la figure 1 comporte une boíte 10 définissant un logement dans lequel est disposé un mouvement de montre, qui sera décrit en référence à la figure 2. Ce mouvement porte un cadran rond 12 et des aiguilles des heures 14, des minutes 16, des secondes 18 et des secondes de chronographe 20. I1 est commandé par une couronne 22 disposée à trois heures et par un poussoir 24 coaxial à la couronne 22.The watch shown in Figure 1 includes a box 10 defining a housing in which a watch movement is arranged, which will be described in reference to figure 2. This movement carries a round dial 12 and hands 14 hours, 16 minutes, 18 seconds and seconds of chronograph 20. I1 is controlled by a crown 22 arranged at three o'clock and by a pusher 24 coaxial with the crown 22.

Dans cette montre, les aiguilles des heures 14 et des secondes 18 sont décentrées, respectivement disposées à midi et six heures. Les aiguilles des minutes 16 et des secondes de chronographe 20 sont coaxiales au cadran.In this watch, the 14 and 18 second hands are off-center, respectively arranged at noon and six o'clock. The needles minutes 16 and chronograph seconds 20 are coaxial with the dial.

Comme on peut le voir tout particulièrement sur la figure 2, le mouvement comporte un bâti, formé d'une platine 26, de ponts, notamment d'un pont de finissage 28, d'un pont de centre 30, d'un pont de minuterie 32 et d'un pont de chronographe 34, ce bâti étant destiné à servir de support aux différentes pièces mobiles du mouvement. As can be seen particularly in Figure 2, the movement comprises a frame, formed of a plate 26, of bridges, in particular of a bridge finishing 28, center bridge 30, timer bridge 32 and bridge chronograph 34, this frame being intended to serve as a support for the various parts movement mobiles.

Ce mouvement comporte une source d'énergie alimentant un balancier par l'intermédiaire d'un rouage de finissage comportant des mobiles de centre 36, de moyenne 38 et de secondes au centre 40, et d'un échappement qui n'a pas été représenté du fait qu'il ne fait pas partie de l'invention. Ces mobiles comportent chacun une roue identifiée par la référence a et un pignon portant la référence b.This movement includes an energy source supplying a balance by through a gear train comprising moving bodies with center 36, average of 38 and 40 seconds in the center, and an exhaust that was not shown in that it is not part of the invention. These mobiles include each a wheel identified by the reference a and a pinion bearing the reference b.

La roue de centre 36 porte, montée à friction, une chaussée 42, munie d'un tigeron 42a destiné à porter l'aiguille des minutes 16, et qui forme le premier mobile d'un rouage de minuterie. Ce dernier comporte, en outre, un renvoi 44 engrenant avec un mobile de minuterie, lequel coopère avec une roue à canon, porteuse de l'aiguille des heures 14. Le mobile de minuterie, ni la roue à canon ne sont visibles au dessin.The center wheel 36 carries, friction mounted, a roadway 42, provided with a tigeron 42a intended to carry the minute hand 16, and which forms the first mobile of a cog timer. The latter also includes a reference 44 meshing with a timer mobile, which cooperates with a cannon wheel, bearing the hour hand 14. The timer mobile, nor the cannon wheel are only visible in the drawing.

Le rouage de ce mouvement comporte, en outre, un pignon de petite seconde 46, un pignon oscillant 48 et une roue des secondes de chronographe 50. Le pignon de petite seconde est en prise avec la roue de moyenne 38a. Il est destiné à porter l'aiguille de secondes 18.The cog of this movement also includes a small second gear 46, an oscillating pinion 48 and a chronograph seconds wheel 50. The small second gear is engaged with the medium wheel 38a. It is for carrying the second hand 18.

Le pignon oscillant 48 est muni de deux dentures respectivement identifiées par les lettres a et b et engrenant respectivement avec la roue de secondes 40a et avec la roue des secondes de chronographe 50. Il est monté dans des paliers que comportent le pont de finissage 28 et une bascule 52. Cette dernière est solidaire de la platine 26, sur laquelle elle peut pivoter, et commandée par un mécanisme de chronographe qui ne sera pas décrit de manière détaillée, car bien connu de l'homme du métier, lui-même actionné par le poussoir 24.The oscillating pinion 48 is provided with two teeth respectively identified by the letters a and b and meshing respectively with the seconds wheel 40a and with the chronograph seconds wheel 50. It is mounted in bearings which comprise the finishing bridge 28 and a rocker 52. The latter is integral with the plate 26, on which it can pivot, and controlled by a chronograph mechanism which will not be described in detail, since it is well known to those skilled in the art, itself actuated by pusher 24.

Lorsque la bascule 52 pivote, elle entraíne latéralement le pivot du pignon 48, de manière à ce que, selon le sens du déplacement, sa denture 48b se dégage de ou engrène avec la denture de la roue 50. En d'autres termes, le pignon 48 et la bascule 52 forment, ensemble, un embrayage reliant ou non cinématiquement la roue de secondes au centre 40a à la roue de secondes de chronographe 50.When the lever 52 pivots, it laterally drives the pinion of the pinion 48, so that, according to the direction of movement, its toothing 48b emerges from or meshes with the teeth of the wheel 50. In other words, the pinion 48 and the rocker 52 form, together, a clutch connecting or not kinematically the center seconds wheel 40a to the chronograph seconds wheel 50.

La roue de secondes de chronographe 50 est disposée coaxiale à la chaussée 42. Elle est formée d'une planche identifié par la lettre a, qui engrène avec la denture 48b, d'un canon b, engagé sur la chaussée 42 et portant l'aiguille de secondes de chronographe 20, et d'un coeur c, dont la fonction sera précisée plus loin et qui, attenant à la planche 50a, est réalisé d'une pièce avec le canon 50b. Elle est montée pivotante sur le pont de chronographe 34 au moyen d'un roulement à billes 54. Ce dernier est formé d'une bague 54a fixée sur le pont de chronographe 34 au moyen d'une clavette non représentée au dessin, d'un noyau 54b, chassé sur le canon 50b, et de billes 54c disposées, de manière classique, entre la bague et le noyau.The chronograph seconds wheel 50 is arranged coaxial with the roadway 42. It is formed by a plate identified by the letter a , which meshes with the teeth 48b, a barrel b , engaged on the roadway 42 and carrying the chronograph seconds hand 20, and a heart c , the function of which will be specified below and which, adjoining the plate 50a, is made in one piece with the barrel 50b. It is pivotally mounted on the chronograph bridge 34 by means of a ball bearing 54. The latter is formed of a ring 54a fixed on the chronograph bridge 34 by means of a key not shown in the drawing, of a core 54b, driven out of the barrel 50b, and balls 54c arranged, in a conventional manner, between the ring and the core.

Le coeur 50c est destiné à coopérer avec un marteau, partie du mécanisme de chronographe mentionné plus haut, qui assure, de manière bien connue de l'homme du métier, la mise à zéro de l'aiguille 20 des secondes de chronographe.The heart 50c is intended to cooperate with a hammer, part of the mechanism chronograph mentioned above, which ensures, in a well known manner of skilled in the art, zeroing the 20 second hand chronograph.

Le mouvement de montre tel qu'il vient d'être décrit peut être réalisé à partir d'un mouvement de montre mécanique classique, du type permettant soit l'affichage des secondes à six heures, soit au centre. Ce mouvement de base est complété par un rouage de minuterie modifié permettant de disposer la roue à canon à midi et d'un module de chronographe fixé sur le mouvement de base, entre la platine 26 et le cadran 12. La seule modification importante apportée au mouvement de base se rapporte à l'adjonction du pignon oscillant 48, qui doit ramener le mouvement de la roue de secondes 40a à la roue de secondes de chronographe.The watch movement as described above can be carried out from of a classic mechanical watch movement, of the type allowing either seconds display at six o'clock, in the center. This basic movement is supplemented by a modified timer train allowing the wheel to be placed cannon at noon and a chronograph module attached to the base movement, between plate 26 and dial 12. The only major change made to the basic movement refers to the addition of the oscillating pinion 48, which must reduce the movement of the seconds wheel 40a to the seconds wheel of chronograph.

Une telle configuration ne nécessite donc que des modifications mineures. Elle présenterait toutefois un inconvénient majeur si le mobile des secondes de chronographe 50 devait tourner à frottement sur la chaussée 42. Il en résulterait, en effet, des frottements importants, réduisant l'amplitude du balancier et, en conséquence, la précision de la montre. Cet inconvénient peut être éviter en faisant pivoter la roue 50 sur le bâti, par l'intermédiaire du roulement à billes 54.Such a configuration therefore requires only minor modifications. She would however have a major drawback if the seconds chronograph 50 was supposed to run friction on pavement 42. It would result, in fact, significant friction, reducing the amplitude of the pendulum and, consequently, the precision of the watch. This drawback can be avoided by rotating the wheel 50 on the frame, via the ball bearing 54.

Le mouvement tel que décrit peut faire l'objet de nombreuses variantes, sans pour autant sortir de l'invention. Il est ainsi tout à fait envisageable de réaliser une montre dans laquelle l'aiguille des heures serait concentrique à l'aiguille des minutes. Dans ce cas, la roue à canon serait interposée entre la chaussée 42 et la roue des secondes de chronographe 50.The movement as described can be the subject of numerous variants, without so far out of the invention. It is thus entirely conceivable to carry out a watch in which the hour hand is concentric with the hand minutes. In this case, the cannon wheel would be interposed between the roadway 42 and the chronograph seconds wheel 50.

Il serait également possible d'associer au mouvement d'autres fonctions complémentaires que le chronographe. La présence d'un roulement à billes tel que décrit plus haut permet, ainsi, la superposition de plusieurs aiguilles centrales, l'aiguille supérieure pouvant assurer l'affichage d'une quelconque fonction impliquant un mouvement de rotation élevé sans pour autant que les pertes dues au frottement ne soient trop importantes.It would also be possible to associate other functions with the movement. complementary to the chronograph. The presence of a ball bearing such that described above thus allows the superposition of several needles central, the upper hand being able to ensure the display of any function involving a high rotational movement without the friction losses are not too great.

Cette solution serait, bien sûr, également applicable au cas où plusieurs aiguilles décentrées devaient être disposées coaxialement sur le mouvement.This solution would, of course, also be applicable in the case where several off-center hands were to be arranged coaxially on the movement.

Claims (7)

Mouvement de montre comportant un bâti (26, 28, 30, 32, 34) et un train d'engrenages formé de mobiles (36, 38, 40, 42) montés pivotant sur le bâti, dont un premier desdits mobiles (42) est muni d'un tigeron (42a) destiné à recevoir une première aiguille (16) et dont un deuxième desdits mobiles (50) est muni d'un canon (50b) disposé coaxialement audit tigeron et destiné à recevoir une deuxième aiguille (20), caractérisé en ce que le deuxième mobile (50) est monté rotatif sur ledit bâti (34) au moyen d'un roulement à billes (54).Watch movement comprising a frame (26, 28, 30, 32, 34) and a gear train formed by mobiles (36, 38, 40, 42) pivotally mounted on the frame, of which a first of said mobiles (42) is provided with a tigeron (42a) intended to receive a first needle (16) and of which a second of said mobiles (50) is provided with a barrel (50b) arranged coaxially with said tigeron and intended to receive a second needle (20) characterized in that the second mobile (50) is rotatably mounted on said frame (34) by means of a ball bearing (54). Mouvement selon la revendication 1, caractérisé en ce que ledit roulement (54) comprend un noyau (54b), une bague (54a) et des billes (54c) disposées entre le noyau (54b) et la bague (54a), et en ce que la bague (54a) est fixée rigidement audit bâti (34) et le noyau (54b) au deuxième mobile (50).Movement according to claim 1, characterized in that said bearing (54) comprises a core (54b), a ring (54a) and balls (54c) disposed between the core (54b) and the ring (54a), and in that that the ring (54a) is rigidly fixed to said frame (34) and the core (54b) to the second mobile (50). Mouvement selon la revendication 2, caractérisé en ce que ledit noyau (54b) est fixé à force sur ledit canon (50b).Movement according to claim 2, characterized in that said core (54b) is forcibly fixed to said barrel (50b). Mouvement de montre selon l'une des revendications 1 à 3, caractérisé en ce qu'il est agencé de manière à ce que le deuxième mobile (50), lorsqu'il est en mouvement, est animé d'une vitesse angulaire supérieure à celle du premier mobile (42).Watch movement according to one of claims 1 to 3, characterized in that it is arranged in such a way that the second mobile (50), when in movement, is driven by an angular speed greater than that of the first mobile (42). Mouvement de montre selon la revendication 4, caractérisé en ce qu'il comporte un mécanisme de type chronographe avec un rouage de chronographe comportant un mobile des secondes (50), formé par ledit deuxième mobile. Watch movement according to claim 4, characterized in that it includes a chronograph-type mechanism with a chronograph train comprising a seconds mobile (50), formed by said second mobile. Mouvement de montre selon la revendication 5 caractérisé en ce que son train d'engrenages comprend un mobile de secondes (40), effectuant un tour par minute et en ce qu'il comporte, en outre: un embrayage (52, 48) susceptible d'occuper des première et seconde positions et muni d'un renvoi (48) reliant cinématiquement le mobile de secondes (40) au deuxième mobile (50) lorsque l'embrayage (52, 48) occupe la seconde position, et des moyens de commande pour mouvoir ledit embrayage de l'une à l'autre desdites positions. Watch movement according to claim 5 characterized in that its gear train comprises a seconds mobile (40), performing one revolution per minute and in that it further comprises: a clutch (52, 48) capable of occupying first and second positions and provided with a reference (48) kinematically connecting the second mobile (40) to the second mobile (50) when the clutch (52, 48) occupies the second position, and control means for moving said clutch from one to the other of said positions. Mouvement selon la revendication 6, caractérisé en ce que ledit mécanisme est disposé du côté du mouvement qui est agencé pour recevoir les aiguilles.Movement according to claim 6, characterized in that said mechanism is arranged on the side of the movement which is arranged to receive the hands.
EP01107013A 2001-03-21 2001-03-21 Clockwork Expired - Lifetime EP1243984B1 (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
AT01107013T ATE418752T1 (en) 2001-03-21 2001-03-21 CLOCKWORK
EP01107013A EP1243984B1 (en) 2001-03-21 2001-03-21 Clockwork
DE60137113T DE60137113D1 (en) 2001-03-21 2001-03-21 clockwork
PCT/IB2002/000591 WO2002075460A1 (en) 2001-03-21 2002-02-27 Watch movement
US10/472,371 US7085199B2 (en) 2001-03-21 2002-02-27 Watch movement
JP2002574005A JP4351448B2 (en) 2001-03-21 2002-02-27 Watch movement

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP01107013A EP1243984B1 (en) 2001-03-21 2001-03-21 Clockwork

Publications (2)

Publication Number Publication Date
EP1243984A1 true EP1243984A1 (en) 2002-09-25
EP1243984B1 EP1243984B1 (en) 2008-12-24

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP01107013A Expired - Lifetime EP1243984B1 (en) 2001-03-21 2001-03-21 Clockwork

Country Status (6)

Country Link
US (1) US7085199B2 (en)
EP (1) EP1243984B1 (en)
JP (1) JP4351448B2 (en)
AT (1) ATE418752T1 (en)
DE (1) DE60137113D1 (en)
WO (1) WO2002075460A1 (en)

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CH706021B1 (en) * 2007-11-21 2013-07-31 Frank Mueller Watchland S A watch movement type and chronograph timepiece provided with such a movement.
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WO2013127686A1 (en) * 2012-02-29 2013-09-06 Eta Sa Manufacture Horlogère Suisse Adjusting a hand under a dial
CN103293937B (en) * 2013-05-31 2016-03-30 天王电子（深圳）有限公司 For stem-winder balance spring mechanism and there is the stem-winder of this mechanism
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Also Published As

Publication number Publication date
JP2004523761A (en) 2004-08-05
DE60137113D1 (en) 2009-02-05
US20040105346A1 (en) 2004-06-03
JP4351448B2 (en) 2009-10-28
US7085199B2 (en) 2006-08-01
WO2002075460A1 (en) 2002-09-26
EP1243984B1 (en) 2008-12-24
ATE418752T1 (en) 2009-01-15

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