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EP3555707B1 - Automatic clock winding movement - Google Patents

Automatic clock winding movement Download PDF

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Publication number
EP3555707B1
EP3555707B1 EP17817192.2A EP17817192A EP3555707B1 EP 3555707 B1 EP3555707 B1 EP 3555707B1 EP 17817192 A EP17817192 A EP 17817192A EP 3555707 B1 EP3555707 B1 EP 3555707B1
Authority
EP
European Patent Office
Prior art keywords
timepiece movement
fixed plate
time
mobile chassis
gear train
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
EP17817192.2A
Other languages
German (de)
French (fr)
Other versions
EP3555707A1 (en
Inventor
Patrick Pichot
Armando Valente
Carole Kasapi
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.)
Cartier International AG
Original Assignee
Cartier International AG
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 Cartier International AG filed Critical Cartier International AG
Publication of EP3555707A1 publication Critical patent/EP3555707A1/en
Application granted granted Critical
Publication of EP3555707B1 publication Critical patent/EP3555707B1/en
Active 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
    • G04B5/00—Automatic winding up
    • G04B5/02—Automatic winding up by self-winding caused by the movement of the watch
    • G04B5/10—Automatic winding up by self-winding caused by the movement of the watch by oscillating weights the movement of which is not limited
    • G04B5/14—Automatic winding up by self-winding caused by the movement of the watch by oscillating weights the movement of which is not limited acting in both directions
    • 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
    • G04B5/00—Automatic winding up
    • G04B5/002—Automatic winding up by moving of parts of the clockwork which are not primarily for winding up
    • 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
    • G04B45/00—Time pieces of which the indicating means or cases provoke special effects, e.g. aesthetic effects
    • G04B45/02—Time pieces of which the clockwork is visible partly or wholly
    • 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
    • G04B5/00—Automatic winding up
    • G04B5/02—Automatic winding up by self-winding caused by the movement of the watch
    • G04B5/16—Construction of the weights
    • 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
    • G04B5/00—Automatic winding up
    • G04B5/02—Automatic winding up by self-winding caused by the movement of the watch
    • G04B5/16—Construction of the weights
    • G04B5/165—Weights consisting of several parts

Definitions

  • the present invention relates to a self-winding watch movement.
  • the present invention aims to provide a self-winding horological movement having a structure very different from that of known movements and producing an attractive effect.
  • the present invention also provides a watch comprising such a watch movement.
  • a watch movement 1 intended to be mounted in a watch case, comprises a fixed plate 2 of annular shape around an imaginary axis A and on which are mounted a setting gear at hour 3, a cog timer 4 and an inertial gear 5 covered by respective bridges 3a, 4a, 5a.
  • a semi-circular mobile stage 6 and bridges 7 fixed to the mobile stage 6 constitute a rotating frame around the axis A and surrounded by the fixed stage 2.
  • the mobile stage 6 is fixed to a transparent disc 8.
  • the movable plate 6 is for example glued directly on the transparent disc 8 or assembled by screwing or the like to a metal deposit formed on the transparent disc 8.
  • the transparent disc 8 is itself fixed in the inner ring 9 of a ball bearing , for example by clamping between the ring 9 and an attached part or by screwing, clamping or driving.
  • This inner ring 9 carries a set of teeth 9a which meshes with the first mobile 5b of the inertial gear 5.
  • the outer ring 10 of the ball bearing is fixed to the fixed plate 2, under the latter, for example by screwing.
  • the time measuring mechanism 11 comprises, in a conventional manner per se, a power source 11a of the barrel type, a finishing gear train 11b driven by the barrel 11a and a regulating member 11c comprising an escapement and a sprung balance.
  • the automatic winding gear 12 for its part (cf. figure 5 ) meshes by the first of its mobile with a fixed wheel 13 and by the last of its mobile with the ratchet 11d of the barrel 11a, and comprises a reduction gear 12a and an inverter 12b as is known per se.
  • the movable frame 6, 7 is unbalanced relative to the axis A, that is to say has an unbalance, and thus constitutes with all the elements that it carries, in particular the time measuring mechanism 11 and the automatic winding gear 12, an oscillating mass M which rotates freely around the axis A under the effect of the movements of the arm of the wearer of the watch.
  • the rotations of the oscillating weight M around the axis A actuate the winding gear automatic 12 which rotates the ratchet 11d to wind up the mainspring housed in the barrel 11a.
  • the inertial gear train 5 comprises a flywheel 5c to regulate the speed of rotation of the oscillating mass M in order to prevent rebat from occurring in the regulating member 11c under the effect of strong accelerations.
  • the flywheel 5c can be of different types, for example a simple rotating mass or a rotating member comprising elastic portions carrying masses which rub against a fixed drum.
  • Two rods 14, 15 of axis A driven out or fixed in another way in the mobile plate 6 form a physical axis (cf. figure 3 ).
  • a tube 16 free to rotate with respect to the rod 14 and on which is fixed a minute wheel 17.
  • a transparent minutes disc 18 located above the oscillating mass M is made integral in rotation. of the tube 16 by a ring 19 fixed, for example driven out, in a central hole of the disc 18 and the interior surface of which has a polygonal section and cooperates with a part of the exterior surface of the tube 16 with a corresponding polygonal section.
  • This ring 19 carries a minute indicator hand 20.
  • the transparent minutes disc 18 is provided at its periphery with a toothing 21 which meshes with the first mobile 4b of the timer gear 4.
  • a transparent hours disc 23 provided with a peripheral toothing 24 which meshes with the last mobile 4c of the timer gear 4.
  • the transparent 23 hours disc is located above the oscillating mass M and leaves the said oscillating mass visible.
  • the ring 22 is fixed in a central hole of the disc 23 and carries an hour indicator hand 25.
  • the teeth 21, 24 can be attached metal teeth, as illustrated, or teeth machined directly in the material of the discs 18, 23.
  • the transparent minutes and hours discs 18, 23 are held axially by bridges 32 (visible at figures 1 and 2 ) attached to the fixed plate 2.
  • the fixed wheel 13 is mounted around the rod 15 so that the latter can rotate freely relative to the fixed wheel 13.
  • a transparent disc 26 fixed by one or more flanges 27 to a ring 2a which is itself fixed, for example. screwed to the fixed plate 2 serves to block the fixed wheel 13 in rotation relative to the fixed plate 2.
  • the outer surface of a barrel 13a of the fixed wheel 13 comprises a part with a polygonal section engaged in the hole, with a corresponding polygonal section, of a ring 28 fixed in a central hole of the transparent disc 26.
  • the fixed wheel 13 cooperates on one side with a bearing surface 15a of the rod 15 and of the the other side with a bearing 29 secured to the movable frame 6, 7 and which guides the rotation of the barrel 13a.
  • the transparent discs 8, 18, 23, 26 are typically made of sapphire, but they can be made of any other suitable transparent material.
  • the minute wheel 17, the transparent discs 8, 18, 23, 26, the minute and hour indicator hands 20, 25, the fixed wheel 13 and the rings 9, 10 of the ball bearing are coaxial with the fixed plate 2 and therefore have the axis A as a common axis.
  • the outside diameter of each of the transparent discs 8, 18, 23, 26 (not including, where applicable, their toothing) is greater than the minimum inside diameter of the fixed plate 2.
  • the movable frame 6, 7 of the oscillating mass M is preferably perforated to make visible all or part of the components of the time measuring mechanism 11 and of the automatic winding gear 12. With its time measuring mechanism 11 and its gear train. automatic winding 12 integrated into the oscillating weight M and rotating with it, the watch movement 1 exerts an attractive and surprising effect on the user.
  • the minute and hour indicator hands 20, 25 are independent of the rotation of the oscillating mass M. They turn in fact in the same way as in a traditional watch where the time measuring mechanism is mounted on a fixed plate. This allows direct and easy reading of the time by the wearer.
  • a differential 30 is mounted in the frame 6, 7 of the oscillating mass M.
  • the differential 30 comprises a first input wheel 30a coaxial and integral with an input shaft 30b.
  • the differential 30 further comprises, around the input shaft 30b, a planet carrier 30c, a second input wheel 30d integral with the planet carrier 30c, a satellite drive wheel 30e and an output mobile. 30f.
  • the planet carrier 30c, the second input wheel 30d and the output mobile 30f are free to rotate relative to the input shaft 30b.
  • the satellite drive wheel 30e is integral in rotation with the input shaft 30b.
  • the planet carrier 30c carries planet wheels 30g which each mesh, by a set of teeth, with the satellite drive wheel 30e, and by another set of teeth, with the pinion of the output wheel set 30f.
  • the wheel of the output mobile 30f meshes with the minute wheel 17 as can be seen in figures 3 and 4 .
  • the mobiles forming the satellites 30g can be one, two or three in number as in the existing differentials.
  • the first input wheel 30a is connected by a gear train (not shown) to a connecting pinion 31 which itself meshes with the barrel 11a (cf. figure 4 ).
  • This first input wheel 30a thus rotates at a speed which is representative of the time measured and which is correct with respect to the oscillating mass M but false with respect to the fixed plate 2.
  • the second input wheel 30d is connected by a gear train (not shown) to the fixed wheel 13 and thus rotates at a speed related to the rotation of the oscillating mass M.
  • the differential 30 subtracts the second speed from the first to rotate the minute wheel 17 and therefore l 'minute indicator hand 20 at the rate of one revolution per hour with respect to the fixed plate 2.
  • the minute wheel 17 rotates the transparent hours disc 23 and therefore the hour indicator hand 25 at the rate of one revolution per 12 hours in relation to the fixed plate 2.
  • the time-setting gear 3 is associated with a control rod 3b which can be actuated by the user in a conventional manner.
  • One 3c of the wheels of the time-setting train 3 meshes with the toothing 21 of the transparent minute disc 18.
  • a rotation of the control rod 3b after the latter has been pulled from a neutral position therefore rotates the transparent 18 minutes disc which, by means of the timer gear 4, rotates the transparent 23 hours disc, thus allowing adjustment of the angular position of the 20, 25 hour and minute indicator hands.
  • minutes 17 is mounted in friction around the tube 16 to be integral in rotation with the latter except when setting the time when the friction is overcome by the torque exerted by the user on the control rod 3b, which avoids the risk of breakage in the time measuring mechanism 11.
  • the figure 7 shows a variant of the watch movement 1 according to the invention, in which the timer train 4 mounted on the fixed plate 2 is replaced by a timer mobile 33 mounted in the frame 6, 7 of the oscillating mass M.
  • the transparent hour disc 23 is omitted, the pinion of the minute wheel set 33 meshes with the minute wheel 17 and the wheel of the minute wheel set 33 meshes with an hour wheel coaxial with the minute wheel 17 and carrying the indicator hand of 25 hours.

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

Description

La présente invention concerne un mouvement horloger à remontage automatique.The present invention relates to a self-winding watch movement.

De nombreux mouvements horlogers à remontage automatique sont connus dans l'état de la technique. L'un d'entre eux, décrit dans le document CH 705252 , utilise la masse oscillante du mécanisme de remontage automatique comme support pour un affichage complémentaire de l'affichage principal du mouvement. L'affichage complémentaire est entraîné par la source d'énergie du mouvement montée, comme l'organe régulateur du mouvement et le rouage du mécanisme de remontage automatique, sur un bâti fixe.Numerous self-winding watch movements are known in the state of the art. One of them, described in the document CH 705252 , uses the oscillating weight of the automatic winding mechanism as a support for a complementary display of the movement's main display. The additional display is driven by the energy source of the movement mounted, such as the movement regulator and the cog of the automatic winding mechanism, on a fixed frame.

La présente invention vise à proposer un mouvement horloger à remontage automatique ayant une structure très différente de celle des mouvements connus et produisant un effet attrayant.The present invention aims to provide a self-winding horological movement having a structure very different from that of known movements and producing an attractive effect.

A cette fin, le mouvement horloger selon l'invention comprend :

  • une platine fixe,
  • un mécanisme de mesure du temps comprenant une source d'énergie, un rouage entraîné par la source d'énergie et un organe régulateur coopérant avec le rouage,
  • au moins un indicateur horaire entraîné par le mécanisme de mesure du temps,
  • un rouage de remontage automatique, et
  • un bâti mobile monté rotatif autour d'un axe par rapport à la platine fixe, le bâti mobile avec tous les éléments qu'il porte étant déséquilibré par rapport audit axe pour former une masse oscillante, l'au moins un indicateur horaire étant indépendant des oscillations de la masse oscillante,
caractérisé en ce que le mécanisme de mesure du temps, avec sa source d'énergie, son rouage et son organe régulateur, et le rouage de remontage automatique sont montés dans le bâti mobile, et en ce qu'il comprend un organe denté fixe avec lequel engrène le rouage de remontage automatique pour recharger la source d'énergie lors des oscillations de la masse oscillante.To this end, the watch movement according to the invention comprises:
  • a fixed plate,
  • a time measuring mechanism comprising an energy source, a gear train driven by the energy source and a regulating member cooperating with the gear train,
  • at least one time indicator driven by the time measuring mechanism,
  • an automatic winding cog, and
  • a movable frame mounted to rotate about an axis relative to the fixed plate, the movable frame with all the elements that it carries being unbalanced with respect to said axis to form an oscillating mass, the at least one time indicator being independent of the oscillations of the oscillating weight,
characterized in that the time-measuring mechanism, with its energy source, its gear train and its regulating member, and the winding gear automatic are mounted in the movable frame, and in that it comprises a fixed toothed member with which the automatic winding gear engages to recharge the energy source during oscillations of the oscillating weight.

La présente invention propose également une montre comprenant un tel mouvement horloger.The present invention also provides a watch comprising such a watch movement.

D'autres caractéristiques et avantages de la présente invention apparaîtront à la lecture de la description détaillée suivante faite en référence aux dessins annexés dans lesquels :

  • la figure 1 est une vue de dessus d'un mouvement horloger selon un mode de réalisation particulier de l'invention ;
  • la figure 2 est une vue de dessus du mouvement horloger selon ledit mode de réalisation particulier, dans laquelle des ponts fixés à une platine fixe ont été retirés ;
  • la figure 3 est une vue en coupe du mouvement horloger selon ledit mode de réalisation particulier ;
  • la figure 4 est une vue de dessus d'une platine mobile faisant partie du mouvement horloger selon ledit mode de réalisation particulier et d'un mécanisme de mesure du temps porté par la platine mobile ;
  • la figure 5 est une vue de dessous de la platine mobile et d'un mécanisme de remontage automatique porté par la platine mobile ;
  • la figure 6 est une vue en coupe d'un différentiel monté sur la platine mobile ; et
  • la figure 7 est une vue de dessus d'un mouvement horloger selon un autre mode de réalisation de l'invention.
Other characteristics and advantages of the present invention will become apparent on reading the following detailed description given with reference to the appended drawings in which:
  • the figure 1 is a top view of a watch movement according to a particular embodiment of the invention;
  • the figure 2 is a top view of the watch movement according to said particular embodiment, in which bridges fixed to a fixed plate have been removed;
  • the figure 3 is a sectional view of the watch movement according to said particular embodiment;
  • the figure 4 is a top view of a movable plate forming part of the watch movement according to said particular embodiment and of a time measuring mechanism carried by the movable plate;
  • the figure 5 is a bottom view of the movable plate and of an automatic winding mechanism carried by the movable plate;
  • the figure 6 is a sectional view of a differential mounted on the movable plate; and
  • the figure 7 is a top view of a watch movement according to another embodiment of the invention.

En référence aux figures 1 à 3, un mouvement horloger 1 selon un mode de réalisation particulier de l'invention, destiné à être monté dans une boîte de montre, comprend une platine fixe 2 de forme annulaire autour d'un axe imaginaire A et sur laquelle sont montés un rouage de mise à l'heure 3, un rouage de minuterie 4 et un rouage inertiel 5 couverts par des ponts respectifs 3a, 4a, 5a. Une platine mobile 6 de forme semi-circulaire et des ponts 7 fixés à la platine mobile 6 constituent un bâti rotatif autour de l'axe A et entouré par la platine fixe 2. La platine mobile 6 est fixée sur un disque transparent 8. La platine mobile 6 est par exemple collée directement sur le disque transparent 8 ou assemblée par vissage ou autre à un dépôt métallique formé sur le disque transparent 8. Le disque transparent 8 est lui-même fixé dans la bague intérieure 9 d'un roulement à billes, par exemple par pincement entre la bague 9 et une pièce rapportée ou par vissage, bridage ou chassage. Cette bague intérieure 9 porte une denture 9a qui engrène avec le premier mobile 5b du rouage inertiel 5. La bague extérieure 10 du roulement à billes est fixée à la platine fixe 2, sous cette dernière, par exemple par vissage.With reference to figures 1 to 3 , a watch movement 1 according to a particular embodiment of the invention, intended to be mounted in a watch case, comprises a fixed plate 2 of annular shape around an imaginary axis A and on which are mounted a setting gear at hour 3, a cog timer 4 and an inertial gear 5 covered by respective bridges 3a, 4a, 5a. A semi-circular mobile stage 6 and bridges 7 fixed to the mobile stage 6 constitute a rotating frame around the axis A and surrounded by the fixed stage 2. The mobile stage 6 is fixed to a transparent disc 8. The movable plate 6 is for example glued directly on the transparent disc 8 or assembled by screwing or the like to a metal deposit formed on the transparent disc 8. The transparent disc 8 is itself fixed in the inner ring 9 of a ball bearing , for example by clamping between the ring 9 and an attached part or by screwing, clamping or driving. This inner ring 9 carries a set of teeth 9a which meshes with the first mobile 5b of the inertial gear 5. The outer ring 10 of the ball bearing is fixed to the fixed plate 2, under the latter, for example by screwing.

A l'intérieur du bâti mobile 6, 7 est monté, du côté supérieur de la platine mobile 6, le mécanisme de mesure du temps du mouvement horloger, désigné par 11, et du côté inférieur de la platine mobile 6 un rouage de remontage automatique 12. Comme montré à la figure 4, le mécanisme de mesure du temps 11 comprend, de manière classique en soi, une source d'énergie 11a du type barillet, un rouage de finissage 11b entraîné par le barillet 11a et un organe régulateur 11c comprenant un échappement et un balancier-spiral. Le rouage de remontage automatique 12 quant à lui (cf. figure 5) engrène par le premier de ses mobiles avec une roue fixe 13 et par le dernier de ses mobiles avec le rochet 11d du barillet 11a, et comprend un rouage réducteur 12a et un inverseur 12b comme cela est connu en soi.Inside the movable frame 6, 7 is mounted, on the upper side of the movable plate 6, the time-measuring mechanism of the horological movement, designated by 11, and on the lower side of the movable plate 6 an automatic winding gear 12. As shown in figure 4 , the time measuring mechanism 11 comprises, in a conventional manner per se, a power source 11a of the barrel type, a finishing gear train 11b driven by the barrel 11a and a regulating member 11c comprising an escapement and a sprung balance. The automatic winding gear 12 for its part (cf. figure 5 ) meshes by the first of its mobile with a fixed wheel 13 and by the last of its mobile with the ratchet 11d of the barrel 11a, and comprises a reduction gear 12a and an inverter 12b as is known per se.

Par sa forme le bâti mobile 6, 7 est déséquilibré par rapport à l'axe A, c'est-à-dire présente un balourd, et constitue ainsi avec tous les éléments qu'il porte, notamment le mécanisme de mesure du temps 11 et le rouage de remontage automatique 12, une masse oscillante M qui tourne librement autour de l'axe A sous l'effet des mouvements du bras du porteur de la montre. Les rotations de la masse oscillante M autour de l'axe A actionnent le rouage de remontage automatique 12 lequel fait tourner le rochet 11d pour remonter le ressort moteur logé dans le barillet 11a. Le rouage inertiel 5 comprend un volant d'inertie 5c pour réguler la vitesse de rotation de la masse oscillante M afin d'éviter que se produise du rebat dans l'organe régulateur 11c sous l'effet de fortes accélérations. Le volant d'inertie 5c peut être de différents types, par exemple une simple masse rotative ou un organe rotatif comprenant des portions élastiques portant des masses qui frottent contre un tambour fixe.By its shape, the movable frame 6, 7 is unbalanced relative to the axis A, that is to say has an unbalance, and thus constitutes with all the elements that it carries, in particular the time measuring mechanism 11 and the automatic winding gear 12, an oscillating mass M which rotates freely around the axis A under the effect of the movements of the arm of the wearer of the watch. The rotations of the oscillating weight M around the axis A actuate the winding gear automatic 12 which rotates the ratchet 11d to wind up the mainspring housed in the barrel 11a. The inertial gear train 5 comprises a flywheel 5c to regulate the speed of rotation of the oscillating mass M in order to prevent rebat from occurring in the regulating member 11c under the effect of strong accelerations. The flywheel 5c can be of different types, for example a simple rotating mass or a rotating member comprising elastic portions carrying masses which rub against a fixed drum.

Deux tiges 14, 15 d'axe A chassées ou fixées d'une autre manière dans la platine mobile 6 forment un axe physique (cf. figure 3). Autour de la tige 14 est monté un tube 16 libre en rotation par rapport à la tige 14 et sur lequel est fixée une roue des minutes 17. Un disque transparent des minutes 18 situé au-dessus de la masse oscillante M est rendu solidaire en rotation du tube 16 par une bague 19 fixée, par exemple chassée, dans un trou central du disque 18 et dont la surface intérieure est à section polygonale et coopère avec une partie de la surface extérieure du tube 16 à section polygonale correspondante. Cette bague 19 porte une aiguille indicatrice des minutes 20. Le disque transparent des minutes 18 est muni à sa périphérie d'une denture 21 qui engrène avec le premier mobile 4b du rouage de minuterie 4. Autour de la tige 14 est également monté, de manière libre en rotation et par l'intermédiaire d'une bague 22, un disque transparent des heures 23 muni d'une denture périphérique 24 qui engrène avec le dernier mobile 4c du rouage de minuterie 4. Comme le disque transparent des minutes 18, le disque transparent des heures 23 est situé au-dessus de la masse oscillante M et laisse visible ladite masse oscillante. La bague 22 est fixée dans un trou central du disque 23 et porte une aiguille indicatrice des heures 25. Les dentures 21, 24 peuvent être des dentures métalliques rapportées, comme illustré, ou des dentures usinées directement dans la matière des disques 18, 23. Les disques transparents des minutes et des heures 18, 23 sont maintenus axialement par des ponts 32 (visibles aux figures 1 et 2) fixés à la platine fixe 2.Two rods 14, 15 of axis A driven out or fixed in another way in the mobile plate 6 form a physical axis (cf. figure 3 ). Around the rod 14 is mounted a tube 16 free to rotate with respect to the rod 14 and on which is fixed a minute wheel 17. A transparent minutes disc 18 located above the oscillating mass M is made integral in rotation. of the tube 16 by a ring 19 fixed, for example driven out, in a central hole of the disc 18 and the interior surface of which has a polygonal section and cooperates with a part of the exterior surface of the tube 16 with a corresponding polygonal section. This ring 19 carries a minute indicator hand 20. The transparent minutes disc 18 is provided at its periphery with a toothing 21 which meshes with the first mobile 4b of the timer gear 4. Around the rod 14 is also mounted, with freely rotating and by means of a ring 22, a transparent hours disc 23 provided with a peripheral toothing 24 which meshes with the last mobile 4c of the timer gear 4. Like the transparent minutes disc 18, the transparent 23 hours disc is located above the oscillating mass M and leaves the said oscillating mass visible. The ring 22 is fixed in a central hole of the disc 23 and carries an hour indicator hand 25. The teeth 21, 24 can be attached metal teeth, as illustrated, or teeth machined directly in the material of the discs 18, 23. The transparent minutes and hours discs 18, 23 are held axially by bridges 32 (visible at figures 1 and 2 ) attached to the fixed plate 2.

La roue fixe 13 est montée autour de la tige 15 de telle sorte que cette dernière puisse tourner librement par rapport à la roue fixe 13. Un disque transparent 26 fixé par une ou des brides 27 à une bague 2a elle-même fixée, par exemple vissée, à la platine fixe 2 sert à bloquer en rotation la roue fixe 13 par rapport à la platine fixe 2. A cet effet, la surface extérieure d'un canon 13a de la roue fixe 13 comprend une partie à section polygonale engagée dans le trou, à section polygonale correspondante, d'une bague 28 fixée dans un trou central du disque transparent 26. Pour son blocage en translation axiale, la roue fixe 13 coopère d'un côté avec une portée 15a de la tige 15 et de l'autre côté avec un palier 29 solidaire du bâti mobile 6, 7 et qui guide la rotation du canon 13a.The fixed wheel 13 is mounted around the rod 15 so that the latter can rotate freely relative to the fixed wheel 13. A transparent disc 26 fixed by one or more flanges 27 to a ring 2a which is itself fixed, for example. screwed to the fixed plate 2 serves to block the fixed wheel 13 in rotation relative to the fixed plate 2. For this purpose, the outer surface of a barrel 13a of the fixed wheel 13 comprises a part with a polygonal section engaged in the hole, with a corresponding polygonal section, of a ring 28 fixed in a central hole of the transparent disc 26. For its locking in axial translation, the fixed wheel 13 cooperates on one side with a bearing surface 15a of the rod 15 and of the the other side with a bearing 29 secured to the movable frame 6, 7 and which guides the rotation of the barrel 13a.

Les disques transparents 8, 18, 23, 26 sont typiquement en saphir mais ils peuvent être faits en toute autre matière transparente appropriée.The transparent discs 8, 18, 23, 26 are typically made of sapphire, but they can be made of any other suitable transparent material.

La roue des minutes 17, les disques transparents 8, 18, 23, 26, les aiguilles indicatrices des minutes et des heures 20, 25, la roue fixe 13 et les bagues 9, 10 du roulement à billes sont coaxiaux avec la platine fixe 2 et ont donc pour axe commun l'axe A. Le diamètre extérieur de chacun des disques transparents 8, 18, 23, 26 (non compris, le cas échéant, leur denture) est supérieur au diamètre intérieur minimal de la platine fixe 2. Lorsque le mouvement horloger 1 est monté dans la boîte de montre, cette dernière, par sa lunette, cache les dentures 21, 24 des disques transparents des minutes et des heures 18, 23, laissant croire qu'il n'existe aucune liaison entre d'une part les aiguilles indicatrices 20, 25 et la masse oscillante M comprenant le mécanisme de mesure du temps 11 et d'autre part la platine fixe 2, donnant ainsi un aspect mystérieux à la montre. Le bâti mobile 6, 7 de la masse oscillante M est de préférence ajouré pour rendre visible tout ou partie des composants du mécanisme de mesure du temps 11 et du rouage de remontage automatique 12. Avec son mécanisme de mesure du temps 11 et son rouage de remontage automatique 12 intégrés à la masse oscillante M et tournant avec elle, le mouvement horloger 1 exerce sur l'utilisateur un effet attrayant et surprenant.The minute wheel 17, the transparent discs 8, 18, 23, 26, the minute and hour indicator hands 20, 25, the fixed wheel 13 and the rings 9, 10 of the ball bearing are coaxial with the fixed plate 2 and therefore have the axis A as a common axis. The outside diameter of each of the transparent discs 8, 18, 23, 26 (not including, where applicable, their toothing) is greater than the minimum inside diameter of the fixed plate 2. When the watch movement 1 is mounted in the watch case, the latter, by its bezel, hides the teeth 21, 24 of the transparent minutes and hours discs 18, 23, suggesting that there is no connection between on the one hand the indicator hands 20, 25 and the oscillating mass M comprising the time measuring mechanism 11 and on the other hand the fixed plate 2, thus giving a mysterious appearance to the watch. The movable frame 6, 7 of the oscillating mass M is preferably perforated to make visible all or part of the components of the time measuring mechanism 11 and of the automatic winding gear 12. With its time measuring mechanism 11 and its gear train. automatic winding 12 integrated into the oscillating weight M and rotating with it, the watch movement 1 exerts an attractive and surprising effect on the user.

Dans la présente invention les aiguilles indicatrices des minutes et des heures 20, 25 sont indépendantes de la rotation de la masse oscillante M. Elles tournent en effet de la même manière que dans une montre traditionnelle où le mécanisme de mesure du temps est monté sur une platine fixe. Cela permet une lecture directe et facile de l'heure par le porteur.In the present invention, the minute and hour indicator hands 20, 25 are independent of the rotation of the oscillating mass M. They turn in fact in the same way as in a traditional watch where the time measuring mechanism is mounted on a fixed plate. This allows direct and easy reading of the time by the wearer.

Pour ce faire, un différentiel 30 est monté dans le bâti 6, 7 de la masse oscillante M. Comme montré à la figure 6, le différentiel 30 comprend une première roue d'entrée 30a coaxiale et solidaire d'un arbre d'entrée 30b. Le différentiel 30 comprend en outre, autour de l'arbre d'entrée 30b, un porte-satellite 30c, une deuxième roue d'entrée 30d solidaire du porte-satellite 30c, une roue d'entraînement de satellite 30e et un mobile de sortie 30f. Le porte-satellite 30c, la deuxième roue d'entrée 30d et le mobile de sortie 30f sont libres en rotation par rapport à l'arbre d'entrée 30b. La roue d'entraînement de satellite 30e est solidaire en rotation de l'arbre d'entrée 30b. Le porte-satellite 30c porte des satellites 30g qui engrènent chacun, par une denture, avec la roue d'entraînement de satellite 30e, et par une autre denture, avec le pignon du mobile de sortie 30f. La roue du mobile de sortie 30f engrène avec la roue des minutes 17 comme cela est visible aux figures 3 et 4. Les mobiles formant les satellites 30g peuvent être au nombre de un, deux ou trois comme dans les différentiels existants.To do this, a differential 30 is mounted in the frame 6, 7 of the oscillating mass M. As shown in figure 6 , the differential 30 comprises a first input wheel 30a coaxial and integral with an input shaft 30b. The differential 30 further comprises, around the input shaft 30b, a planet carrier 30c, a second input wheel 30d integral with the planet carrier 30c, a satellite drive wheel 30e and an output mobile. 30f. The planet carrier 30c, the second input wheel 30d and the output mobile 30f are free to rotate relative to the input shaft 30b. The satellite drive wheel 30e is integral in rotation with the input shaft 30b. The planet carrier 30c carries planet wheels 30g which each mesh, by a set of teeth, with the satellite drive wheel 30e, and by another set of teeth, with the pinion of the output wheel set 30f. The wheel of the output mobile 30f meshes with the minute wheel 17 as can be seen in figures 3 and 4 . The mobiles forming the satellites 30g can be one, two or three in number as in the existing differentials.

La première roue d'entrée 30a est reliée par un train d'engrenages (non représenté) à un pignon de liaison 31 qui engrène lui-même avec le barillet 11a (cf. figure 4). Cette première roue d'entrée 30a tourne ainsi à une vitesse qui est représentative du temps mesuré et qui est juste par rapport à la masse oscillante M mais fausse par rapport à la platine fixe 2. La deuxième roue d'entrée 30d est reliée par un train d'engrenages (non représenté) à la roue fixe 13 et tourne ainsi à une vitesse liée à la rotation de la masse oscillante M. Le différentiel 30 soustrait la deuxième vitesse à la première pour faire tourner la roue des minutes 17 et donc l'aiguille indicatrice des minutes 20 à raison d'un tour par heure par rapport à la platine fixe 2. Par l'intermédiaire du tube 16, du disque transparent des minutes 18 et du rouage de minuterie 4, la roue des minutes 17 fait tourner le disque transparent des heures 23 et donc l'aiguille indicatrice des heures 25 à raison d'un tour par 12 heures par rapport à la platine fixe 2.The first input wheel 30a is connected by a gear train (not shown) to a connecting pinion 31 which itself meshes with the barrel 11a (cf. figure 4 ). This first input wheel 30a thus rotates at a speed which is representative of the time measured and which is correct with respect to the oscillating mass M but false with respect to the fixed plate 2. The second input wheel 30d is connected by a gear train (not shown) to the fixed wheel 13 and thus rotates at a speed related to the rotation of the oscillating mass M. The differential 30 subtracts the second speed from the first to rotate the minute wheel 17 and therefore l 'minute indicator hand 20 at the rate of one revolution per hour with respect to the fixed plate 2. Via the tube 16, the disc transparent minutes 18 and timer gear 4, the minute wheel 17 rotates the transparent hours disc 23 and therefore the hour indicator hand 25 at the rate of one revolution per 12 hours in relation to the fixed plate 2.

Pour la mise à l'heure du mouvement horloger 1 (cf. figure 2), le rouage de mise à l'heure 3 est associé à une tige de commande 3b actionnable par l'utilisateur de manière classique. L'une 3c des roues du rouage de mise à l'heure 3 engrène avec la denture 21 du disque transparent des minutes 18. Une rotation de la tige de commande 3b après que celle-ci a été tirée depuis une position neutre fait donc tourner le disque transparent des minutes 18 lequel, par l'intermédiaire du rouage de minuterie 4, fait tourner le disque transparent des heures 23, permettant ainsi un réglage de la position angulaire des aiguilles indicatrices des minutes et des heures 20, 25. La roue des minutes 17 est montée à friction autour du tube 16 pour être solidaire en rotation de ce dernier sauf lors d'une mise à l'heure où la friction est vaincue par le couple exercé par l'utilisateur sur la tige de commande 3b, ce qui évite le risque de casse dans le mécanisme de mesure du temps 11.For setting the time of watch movement 1 (cf. figure 2 ), the time-setting gear 3 is associated with a control rod 3b which can be actuated by the user in a conventional manner. One 3c of the wheels of the time-setting train 3 meshes with the toothing 21 of the transparent minute disc 18. A rotation of the control rod 3b after the latter has been pulled from a neutral position therefore rotates the transparent 18 minutes disc which, by means of the timer gear 4, rotates the transparent 23 hours disc, thus allowing adjustment of the angular position of the 20, 25 hour and minute indicator hands. minutes 17 is mounted in friction around the tube 16 to be integral in rotation with the latter except when setting the time when the friction is overcome by the torque exerted by the user on the control rod 3b, which avoids the risk of breakage in the time measuring mechanism 11.

La figure 7 montre une variante du mouvement horloger 1 selon l'invention, dans laquelle le rouage de minuterie 4 monté sur la platine fixe 2 est remplacé par un mobile de minuterie 33 monté dans le bâti 6, 7 de la masse oscillante M. Dans cette variante le disque transparent des heures 23 est supprimé, le pignon du mobile de minuterie 33 engrène avec la roue des minutes 17 et la roue du mobile de minuterie 33 engrène avec une roue des heures coaxiale à la roue des minutes 17 et portant l'aiguille indicatrice des heures 25.The figure 7 shows a variant of the watch movement 1 according to the invention, in which the timer train 4 mounted on the fixed plate 2 is replaced by a timer mobile 33 mounted in the frame 6, 7 of the oscillating mass M. In this variant the transparent hour disc 23 is omitted, the pinion of the minute wheel set 33 meshes with the minute wheel 17 and the wheel of the minute wheel set 33 meshes with an hour wheel coaxial with the minute wheel 17 and carrying the indicator hand of 25 hours.

Claims (14)

  1. Timepiece movement comprising:
    - a fixed plate (2),
    - a time-measuring mechanism (11) comprising a power source (11a), a gear train (11b) driven by the power source (11a) and a regulating member (11c) cooperating with the gear train (11b),
    - at least one time indicator (20, 25) driven by the time-measuring mechanism (11),
    - an automatic winding gear train (12), and
    - a mobile chassis (6, 7) mounted to rotate about an axis (A) with respect to the fixed plate (2), the mobile chassis (6, 7) with all the elements it bears being imbalanced with respect to said axis (A) in order to form an oscillating mass (M), the at least one time indicator (20, 25) being independent of the oscillations of the oscillating mass (M),
    characterised in that the time-measuring mechanism (11), with its power source (11a), its gear train (11b) and its regulating member (11c), and the automatic winding gear train (12) are mounted in the mobile chassis (6, 7), and in that it comprises a fixed toothed member (13) with which the automatic winding gear train (12) meshes in order to recharge the power source (11a) during the oscillations of the oscillating mass (M).
  2. Timepiece movement as claimed in claim 1, characterised in that the at least one time indicator (20, 25) is rendered independent of the oscillations of the oscillating mass (M) by a differential (30) mounted in the mobile chassis (6, 7) and one input (30a) of which is connected to the time-measuring mechanism (11) and another input (30b) of which is connected to the fixed toothed member (13).
  3. Timepiece movement as claimed in claim 1 or 2, characterised in that the fixed plate (2) surrounds the mobile chassis (6, 7).
  4. Timepiece movement as claimed in any one of claims 1 to 3, characterised in that the mobile chassis (6, 7) is borne by a transparent disc (8) which rotates about said axis (A) with respect to the fixed plate (2).
  5. Timepiece movement as claimed in any one of claims 1 to 4, characterised in that the mobile chassis (6, 7) is mounted to rotate about said axis (A) by means of a rolling bearing (9, 10).
  6. Timepiece movement as claimed in any one of claims 1 to 5, characterised in that it further comprises a regulator device (5) to regulate the oscillations of the oscillating mass (M).
  7. Timepiece movement as claimed in claim 6, characterised in that the regulating device (5) is mounted on the fixed plate (2).
  8. Timepiece movement as claimed in any one of claims 1 to 7, characterised in that the fixed toothed member (13) is connected to the fixed plate (2) by means of a transparent disc (26) coaxial to said axis (A).
  9. Timepiece movement as claimed in any one of claims 1 to 8, characterised in that it further comprises a time-setting gear train (3) mounted on the fixed plate (2) and arranged to drive a transparent disc (18) which rotates about said axis (A) and is fixedly attached to the time indicator or to one of the time indicators (20, 25).
  10. Timepiece movement as claimed in any one of claims 1 to 9, characterised in that the at least one time indicator comprises an hour indicator (25) and a minute indicator (20).
  11. Timepiece movement as claimed in claim 10, characterised in that the hour and minute indicators (25, 20) are fixedly attached to respective transparent discs (23, 18) which are connected by means of a motion-work (4) mounted on the fixed plate (2).
  12. Timepiece movement as claimed in claim 10, characterised in that the hour and minute indicators (25, 20) are connected by means of a motion-work (33) mounted in the mobile chassis (6, 7).
  13. Timepiece movement as claimed in any one of claims 1 to 12, characterised in that the mobile chassis (6, 7) is semi-circular in shape.
  14. Watch comprising a timepiece movement as claimed in any one of claims 1 to 13.
EP17817192.2A 2016-12-13 2017-12-11 Automatic clock winding movement Active EP3555707B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH01640/16A CH713222A1 (en) 2016-12-13 2016-12-13 Watch movement with automatic winding.
PCT/IB2017/057771 WO2018109629A1 (en) 2016-12-13 2017-12-11 Automatic winding timepiece movement

Publications (2)

Publication Number Publication Date
EP3555707A1 EP3555707A1 (en) 2019-10-23
EP3555707B1 true EP3555707B1 (en) 2020-11-11

Family

ID=57583010

Family Applications (1)

Application Number Title Priority Date Filing Date
EP17817192.2A Active EP3555707B1 (en) 2016-12-13 2017-12-11 Automatic clock winding movement

Country Status (3)

Country Link
EP (1) EP3555707B1 (en)
CH (1) CH713222A1 (en)
WO (1) WO2018109629A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3627232B1 (en) * 2018-09-24 2021-05-05 ETA SA Manufacture Horlogère Suisse Self-winding watch movement with time display hands located on the rotor side

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3541781A (en) * 1968-09-09 1970-11-24 Walter L Bloom Apparatus for measuring time spent standing or walking
EP2544055B1 (en) * 2011-07-07 2017-11-08 Blancpain S.A. Display of a physical magnitude on a clock display medium

Non-Patent Citations (1)

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

Also Published As

Publication number Publication date
WO2018109629A1 (en) 2018-06-21
CH713222A1 (en) 2018-06-15
EP3555707A1 (en) 2019-10-23

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