EP4383014A1 - Clock device for transforming a first movement into a second movement - Google Patents

Clock device for transforming a first movement into a second movement Download PDF

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Publication number
EP4383014A1
EP4383014A1 EP22212420.8A EP22212420A EP4383014A1 EP 4383014 A1 EP4383014 A1 EP 4383014A1 EP 22212420 A EP22212420 A EP 22212420A EP 4383014 A1 EP4383014 A1 EP 4383014A1
Authority
EP
European Patent Office
Prior art keywords
movable
cam follower
watchmaking
output member
rotation
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.)
Pending
Application number
EP22212420.8A
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German (de)
French (fr)
Inventor
Mathieu MARANGÉ
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.)
Patek Philippe SA Geneve
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Patek Philippe SA Geneve
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 Patek Philippe SA Geneve filed Critical Patek Philippe SA Geneve
Priority to EP22212420.8A priority Critical patent/EP4383014A1/en
Publication of EP4383014A1 publication Critical patent/EP4383014A1/en
Pending legal-status Critical Current

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    • 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
    • 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

Definitions

  • a continuously driven seconds wheel meshes with an intermediate wheel which itself meshes with a jumping seconds wheel.
  • the intermediate wheel is carried by a rocker whose nose cooperates with a locking wheel to immobilize it.
  • This locking wheel is attached to a pinion which meshes with the jumping wheel.
  • the continuously driven seconds wheel transmits its rotation to the wheel intermediate. As long as the jumping seconds wheel is blocked by the action of the tip of the lever on the locking wheel, the rotation of the intermediate wheel causes the rotation of the lever until the tip leaves the tooth of the wheel. blockage against which he was leaning.
  • the device described in the patent application CH 709375 comprises a continuously driven seconds wheel and a pawl holder coaxial with this seconds wheel.
  • a ratchet is articulated around a pin.
  • the pawl holder is connected to the seconds wheel by a spiral spring.
  • the ratchet comprises a nose engaged in internal teeth of a fixed crown.
  • it carries a pin engaged in an oblong hole in the seconds wheel, allowing the pawl to oscillate when the seconds wheel turns.
  • the seconds wheel rotating continuously, arms the balance spring and at the same time activates the pawl.
  • the ratchet leaves one tooth on the ring gear, it jumps and stops against the next tooth.
  • the ratchet holder thus moves in jumps.
  • This device is bulky both in height and in projection in a plane perpendicular to the height.
  • the present invention aims to propose a watchmaking device for transforming a first movement into a second movement which is relatively space-saving, at least in projection in a plane perpendicular to the height.
  • the present invention also proposes a timepiece, for example a watch, more particularly a wristwatch, comprising such a timepiece device.
  • two elements are said to be coplanar when they have substantially the same thickness (height) and substantially the same median plane perpendicular to this thickness.
  • a watchmaking device 1a for transforming a first rotation into a second rotation, at least partly jerky, according to a first embodiment of the invention.
  • This device 1a is intended to be integrated into a movement of a timepiece, typically a watch. It comprises a rotating input member 2, a rotating output member 3, a fixed crown 4 having internal teeth 5, a lever 6 and a member intermediate 7 movable relative to the rotary input and output members 2, 3 and to the crown 4.
  • the rotating input member 2, the rotating output member 3, the crown 4 and the intermediate member 7 are coaxial.
  • the output rotating member 3, the lever 6 and the intermediate member 7 are part of a monolithic part which is coplanar with the input rotating member 2 and the crown 4, the input rotating member 2 being located in the center of the device 1 and the crown 4 constituting the periphery of the device 1a.
  • the lever 6 is connected, in the monolithic part, to the intermediate member 7 by a first flexible guide 8, here a simple elastic blade.
  • the rotating output member 3 and the intermediate member 7 are connected, in the monolithic part, by a second flexible guide 9, here consisting of two elastic RCC blades (“Remote Center Compliance”; flexible guide with offset center of rotation) .
  • the lever 6 can pivot relative to the intermediate member 7 around a pivot point P, which is located approximately one third of the length of the blade 8 measured from the lever 6, and the intermediate member 7 can pivot around the imaginary axis A common to the members 2, 3, 4, 7 while being guided by the rotating output member 3.
  • the rotating output member 3 is integral with a display disc (for example of the type of disk 17 illustrated on the figure 2 ) which is guided in rotation around the axis A by the shaft on which the rotating input member 2 is mounted.
  • the rotating output member 3 has ears 10 adapted to receive pins glued, soldered or otherwise attached to the display disc.
  • the rotary input member 2 is continuously rotated around the axis A in a clockwise direction by the movement motor member.
  • the rotary input member 2 is integral with a pinion or a wheel (not shown) kinematically connected to the gear train. finishing of the movement.
  • the rotary input member 2 comprises two meshing teeth 11 which accommodate between them a first meshing tooth 12 of the lever 6.
  • a second meshing tooth 13 of the lever 6, diametrically opposed to the first with respect to the point pivot P, is engaged between two meshing teeth 14 of the rotating output member 3.
  • the internal teeth 5 are composed of wave-shaped teeth each comprising a stopping flank 15 against which a nose 16 of the lever 6 can rest under the action of the flexible guides 8, 9.
  • the rotation of the rotating member input 2 slides the nozzle 16 on the stopping side 15 on which it is located and pivots the lever 6 around its pivot point P in the counterclockwise direction by deforming the flexible guides 8, 9 until the nose 16 comes out of the teeth 5.
  • the lever 6 is released and the return force of the flexible guides 8, 9 causes it to fall onto the stopping side 15 of the next tooth , driving with it the output member 3 by its second meshing tooth 13.
  • the output member 3 and the display disc thus move in jumps, which makes it possible, for example, to digitally display the current time, the units and tens of the current minutes (see the display of the units of the minutes by disk 17 on the figure 2 ), a timed time, a countdown, the date, the day, the week, the power reserve, or other.
  • the pivot point P of the lever 6 moves relative to the crown 4, to the output member 3 and to the frame on which the device 1a is mounted during the sliding of the nozzle 16 on the stopping side 15.
  • the pivot point P which allows the lever 6 to escape from the stopping flank 15.
  • This makes it possible to reduce the amplitude of rotation of the lever 6 around the pivot point P, therefore the height of the teeth of the internal teeth 5, therefore the size of the device 1a in its plane.
  • a reduced amplitude of rotation of the lever 6 also reduces the energy consumption of the device 1a.
  • the mobility of the point of pivoting P also makes it possible to reduce the stresses applied in the return spring of the lever 6, namely here the first flexible guide 8, or to reduce the dimensions of the return spring without increasing the stresses it undergoes.
  • This device 1a is compact, whether in its plan or in height.
  • this device 1a offers great freedom as to the movement that we wish to produce at the output.
  • Device 1a can be considered as a differential in which one of the two inputs controls the other to authorize only one rotation scenario.
  • the input rotating member 2 is a differential input sun gear
  • the lever 6 is a satellite
  • the intermediate member 7 is the planet carrier
  • the output rotating member 3 is the output sun gear.
  • the crown 4 is typically fixed, as already indicated, but it could be rotated to, for example, vary the display speed and/or the stopping positions of the lever 6.
  • the stopping flanks 15 of the teeth of the crown 4 together form a cam surface which is followed by a cam follower, in this case the lever 6 with its beak 16, and which surrounds the cam follower, the rotating member d the inlet 2, the rotating output member 3 and the intermediate member 7.
  • a second embodiment of the watchmaking device according to the invention is illustrated in figure 2 and designated by reference 1b. It differs from the first embodiment essentially in that the rotary input member 2 and the lever 6 mesh via two toothed sectors and in that the lever 6 and the rotary output member 3 also mesh via two toothed sectors.
  • the display disc 17 is replaced by a needle 18, for example a dead seconds hand, secured to the rotating output member 3 and guided in rotation around the axis A by the shaft of the rotating input member 2.
  • the watchmaking device 1d comprises two levers 6a, 6b controlled by the organ rotary input 2 and the rotary output member 3 is in two parts 3a, 3b secured by the display disk or other display member.
  • Two monolithic parts coplanar and symmetrical with respect to the axis A each comprise one of the two levers 6a, 6b, one of the two parts 3a, 3b of the rotating output member 3, an intermediate member 7a, 7b, an elastic blade 8a , 8b articulating the lever 6a, 6b to the intermediate member 7a, 7b and an elastic blade 9a, 9b connecting the intermediate member 7a, 7b to the rotating output member 3 for guiding the intermediate member 7a in rotation , 7b.
  • the levers 6a, 6b cooperate with the internal teeth 5 out of phase.
  • a larger number of levers and corresponding monolithic parts can of course be provided.
  • Providing several levers makes it possible to reduce the number of teeth of the crown 4 and to guarantee good repositioning of the levers on the stopping sides 15.
  • the assembly comprising the lever 6, the intermediate member 7 and the rotating output member 3 is no longer monolithic.
  • the lever 6 and the intermediate member 7 are here distinct parts articulated together by a pivot connection 19 and the intermediate member 7 is guided in rotation around the axis A by a slide in an arc of a circle 20 which the rotating output member 3.
  • the spring of the lever 6, constituted by the first and second flexible guides 8, 9 in the previous embodiments, is here formed by a blade 21, one end of which is joined to the rotating input member 2 and the other end, free, rests on the back of the lever 6.
  • the rotating input member 2, the rotating output member 3, the crown 4, the lever 6, the intermediate member 7 and the blade 21 are coplanar.
  • FIG. 6 A sixth embodiment is illustrated in Figure 6 .
  • the watch device 1f according to this sixth embodiment is similar to the watch device 1a according to the first embodiment.
  • the intermediate member 7 comprises a guide arm 22 which matches a curved portion 23 of the lever 6 concentric with the pivot point P of the lever 6 relative to the member intermediate 7 to guarantee precise rotational guidance of the lever 6 relative to the intermediate member 7.
  • This guide arm 22 may comprise projecting parts 24 forming guide pads in contact with the curved portion 23.
  • the internal teeth 5 of the crown 4 extend over less than 360°, being interrupted by a connecting surface 25.
  • the lever 6 causes the rotating output member 3 to make a series of short jumps (when the lever 6 cooperates with the teeth 5) followed by a long jump (when the lever 6 moves facing the surface of connection 25).
  • the stopping flanks 15 of the teeth 5 together constitute a cam surface with which a cam follower cooperates, namely the lever 6 and its beak 16.
  • This sixth embodiment can be modified by making the connecting surface 25 concentric with the axis A so as to transform it into a sliding surface with which the nose 16 of the lever 6 can cooperate to cause the rotating member to perform output 3 a continuous movement after the series of jumps caused by the teeth 5.
  • the cam surface is constituted by the stopping flanks 15 and by the surface 25.
  • a 1g watch device differs from the watchmaking device 1f according to the sixth embodiment in that the cam surface with which the nose 16 cooperates is constituted by a sliding surface 26 whose distance from the axis A varies. The cooperation between the nozzle 16 and this sliding surface 26 produces a continuous movement, but at variable speed, of the rotating output member 3.
  • FIG. 8 shows a 1 hour watch device according to an eighth embodiment of the invention. Unlike previous embodiments, this 1 hour watch device is not planar. It extends over several levels and is made up of an assembly of parts.
  • the rotating input member 2 is here a toothed wheel mounted around a shaft A'.
  • the rotating output member 3 is a crown with internal teeth coaxial with the shaft A' and guided in rotation by the top teeth of the internal teeth 5 of the crown 4.
  • the intermediate member 7 is a cage mounted around the shaft A' in a free rotating manner relative to the rotary input member 2 and carrying the lever 6, the latter being articulated to the intermediate member 7 by a shaft B.
  • the 1h watch device operates according to the same principle as the devices 1a, 1b, 1c and 1e to produce a jerky movement at the output. It is more bulky in height but, like the previous embodiments, is compact in projection in a plane perpendicular to the height thanks to the mobility of the intermediate member 7 which makes it possible to reduce the height of the teeth of the internal teeth 5 of the crown 4 by reducing the amplitude of rotation of the lever 6.
  • the mobility of the intermediate member 7 also makes it possible to reduce the stresses inside the return spring 28 or to reduce the dimensions of the return spring 28 without increase the constraints it undergoes.
  • a watchmaking device 1i according to a ninth embodiment is illustrated in the Figure 9 . It differs from device 1h in that the internal teeth 5 of the crown 4 are replaced by a sliding surface 29 of generally triangular shape with which the nose 16 of the lever 6 cooperates to cause the rotating output member 3 to move continuous but at variable speed.
  • the mobility of the intermediate member 7 makes it possible to obtain the desired movement of the rotating output member 3 with reduced bulk in projection in a plane perpendicular to the height since the differences in distance between the different points of the sliding surface 29 and the axis of the shaft A' can be reduced.
  • a watchmaking device 1j according to a tenth embodiment of the invention.
  • the cam surface 29' with which the lever or cam follower 6 cooperates to produce a continuous movement at output but at variable speed is an exterior surface and not an interior as in the device 1i.
  • This cam surface 29' is defined by a cam 30 fixed and coaxial with the rotating input member 2 and the intermediate member 7.
  • FIG. 11 shows a 1k watch device according to an eleventh embodiment of the invention.
  • the cam surface designated here by 31 is an exterior surface.
  • this cam surface 31 is of the snail type, that is to say it is shaped to make the lever or cam follower 6, therefore the rotary output member 3, perform one jump per revolution of rotation of the input rotating member 2, the lever or cam follower 6 and the output rotating member 3 moving continuously the rest of the time.
  • the input and output members, 2' and 3' are here with linear rather than rotary movement, guided by flexible or rigid guides.
  • the intermediate member 7' also has linear movement, guided by flexible or rigid guidance.
  • the cam follower 6' is integral in rotation with the satellite wheel 27' carried by the intermediate member 7'.
  • the cam follower 6' cooperates with the cam surface 26' under the action of a spring 8' to transform the constant linear movement of the input member 2' into a linear movement at variable speed, of the output member 3'.
  • the cam surface is toothed to produce a jerky linear movement at the output member 3'.

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Abstract

Le dispositif horloger selon l'invention comprend un organe mobile d'entrée (2), un organe mobile de sortie (3), une surface de came (15) fixe ou mobile, un organe élastique (8), un suiveur de came (6) agencé pour être commandé par l'organe mobile d'entrée (2) et pour coopérer avec la surface de came (15) sous l'action de l'organe élastique (8) pour entraîner l'organe mobile de sortie (3) et un organe intermédiaire (7) mobile par rapport à l'organe mobile d'entrée (2), à l'organe mobile de sortie (3) et à la surface de came (15) et auquel est articulé le suiveur de came (6), cette articulation définissant un point de pivotement (P) mobile du suiveur de came (6) dans le dispositif horloger.The watchmaking device according to the invention comprises a movable input member (2), a movable output member (3), a fixed or movable cam surface (15), an elastic member (8), a cam follower ( 6) arranged to be controlled by the movable input member (2) and to cooperate with the cam surface (15) under the action of the elastic member (8) to drive the movable output member (3 ) and an intermediate member (7) movable relative to the movable input member (2), to the movable output member (3) and to the cam surface (15) and to which the cam follower is articulated (6), this articulation defining a movable pivot point (P) of the cam follower (6) in the watchmaking device.

Description

La présente invention concerne un dispositif horloger de transformation d'un premier mouvement en un deuxième mouvement, par exemple de transformation d'une première rotation en une deuxième rotation, au moins en partie saccadée. Un tel dispositif peut être utilisé par exemple pour l'affichage sautant d'une grandeur temporelle du type heure, minute, seconde, quantième, jour, semaine ou autre ou pour l'entraînement d'un automate.The present invention relates to a watchmaking device for transforming a first movement into a second movement, for example transforming a first rotation into a second rotation, at least partly jerky. Such a device can be used for example for the jumping display of a temporal quantity of the hour, minute, second, date, day, week or other type or for driving a automaton.

Il est bien connu dans l'horlogerie (cf. par exemple le brevet CH 702137 ) de transformer une rotation continue en une rotation saccadée en entraînant continûment une came escargot sur laquelle s'appuie une bascule sous l'action d'un ressort, cette bascule portant un cliquet qui fait avancer d'un pas une roue sautante à chaque fois que la bascule tombe de la partie haute à la partie basse de la came escargot. Un sautoir agit sur la roue sautante pour la maintenir angulairement entre deux actionnements par le cliquet. Un inconvénient de ce type de dispositif est qu'il existe un risque de double saut, c'est-à-dire que sous l'effet de son inertie la roue sautante peut se déplacer d'un pas supplémentaire après son actionnement par le cliquet.It is well known in watchmaking (see for example the patent CH 702137 ) to transform a continuous rotation into a jerky rotation by continuously driving a snail cam on which a rocker rests under the action of a spring, this rocker carrying a pawl which moves a jumping wheel one step each time that the rocker falls from the upper part to the lower part of the snail cam. A jumper acts on the jumping wheel to hold it angularly between two actuations by the pawl. A disadvantage of this type of device is that there is a risk of double jumping, that is to say that under the effect of its inertia the jumping wheel can move an additional step after its actuation by the pawl .

Des dispositifs horlogers de transformation d'une rotation continue en une rotation saccadée qui remédient à cet inconvénient ont été proposés dans les brevets CH 707181 , CH 707182 et CH 707183 du présent déposant et dans la demande de brevet CH 709375 .Watchmaking devices for transforming a continuous rotation into a jerky rotation which overcome this drawback have been proposed in the patents CH 707181 , CH 707182 And CH 707183 of this applicant and in the patent application CH 709375 .

Dans le dispositif selon les trois brevets précités, une roue de seconde entraînée continûment engrène avec une roue intermédiaire qui elle-même engrène avec une roue de seconde sautante. La roue intermédiaire est portée par une bascule dont un bec coopère avec une roue de blocage pour l'immobiliser. Cette roue de blocage est solidaire d'un pignon qui engrène avec la roue sautante. La roue de seconde entraînée continûment transmet sa rotation à la roue intermédiaire. Tant que la roue de seconde sautante est bloquée par l'action du bec de la bascule sur la roue de blocage, la rotation de la roue intermédiaire provoque la rotation de la bascule jusqu'à ce que le bec quitte la dent de la roue de blocage contre laquelle il s'appuyait. Chaque fois que le bec quitte une dent de la roue de blocage, cette dernière devient libre et la bascule revient dans sa position initiale sous l'action d'un ressort de rappel, ce qui ramène la roue intermédiaire dans sa position initiale et fait faire un saut à la roue de seconde sautante, le saut s'arrêtant lorsque le bec de la bascule rencontre la dent suivante de la roue de blocage. Ce dispositif est performant mais il est encombrant à la fois en hauteur (parallèlement aux axes de rotation) et en projection dans un plan perpendiculaire à la hauteur.In the device according to the three aforementioned patents, a continuously driven seconds wheel meshes with an intermediate wheel which itself meshes with a jumping seconds wheel. The intermediate wheel is carried by a rocker whose nose cooperates with a locking wheel to immobilize it. This locking wheel is attached to a pinion which meshes with the jumping wheel. The continuously driven seconds wheel transmits its rotation to the wheel intermediate. As long as the jumping seconds wheel is blocked by the action of the tip of the lever on the locking wheel, the rotation of the intermediate wheel causes the rotation of the lever until the tip leaves the tooth of the wheel. blockage against which he was leaning. Each time the beak leaves a tooth of the locking wheel, the latter becomes free and the rocker returns to its initial position under the action of a return spring, which brings the intermediate wheel back to its initial position and causes a jump to the jumping seconds wheel, the jump stopping when the nose of the lever meets the next tooth of the locking wheel. This device is efficient but it is bulky both in height (parallel to the axes of rotation) and in projection in a plane perpendicular to the height.

Le dispositif décrit dans la demande de brevet CH 709375 comprend une roue de seconde entraînée continûment et un porte-cliquet coaxial à cette roue de seconde. Sur ce porte-cliquet est articulé un cliquet autour d'une goupille. Le porte-cliquet est relié à la roue de seconde par un ressort-spiral. A l'une de ses deux extrémités, le cliquet comprend un bec engagé dans une denture intérieure d'une couronne fixe. A son autre extrémité, il porte une goupille engagée dans un trou oblong de la roue de seconde, permettant au cliquet d'osciller lorsque la roue de seconde tourne. La roue de seconde, tournant de façon continue, arme le ressort-spiral et en même temps actionne le cliquet. Lorsque le cliquet quitte une dent de la couronne, il saute et s'arrête contre la dent suivante. Le porte-cliquet se déplace ainsi par sauts. Ce dispositif est encombrant à la fois en hauteur et en projection dans un plan perpendiculaire à la hauteur.The device described in the patent application CH 709375 comprises a continuously driven seconds wheel and a pawl holder coaxial with this seconds wheel. On this ratchet holder a ratchet is articulated around a pin. The pawl holder is connected to the seconds wheel by a spiral spring. At one of its two ends, the ratchet comprises a nose engaged in internal teeth of a fixed crown. At its other end, it carries a pin engaged in an oblong hole in the seconds wheel, allowing the pawl to oscillate when the seconds wheel turns. The seconds wheel, rotating continuously, arms the balance spring and at the same time activates the pawl. When the ratchet leaves one tooth on the ring gear, it jumps and stops against the next tooth. The ratchet holder thus moves in jumps. This device is bulky both in height and in projection in a plane perpendicular to the height.

La présente invention vise à proposer un dispositif horloger de transformation d'un premier mouvement en un deuxième mouvement qui soit relativement peu encombrant, au moins en projection dans un plan perpendiculaire à la hauteur.The present invention aims to propose a watchmaking device for transforming a first movement into a second movement which is relatively space-saving, at least in projection in a plane perpendicular to the height.

A cette fin, il est proposé un dispositif horloger selon la revendication 1, des modes de réalisation particuliers étant définis dans les revendications dépendantes.To this end, there is proposed a watchmaking device according to claim 1, particular embodiments being defined in the dependent claims.

La présente invention propose également une pièce d'horlogerie, par exemple une montre, plus particulièrement une montre-bracelet, comprenant un tel dispositif horloger.The present invention also proposes a timepiece, for example a watch, more particularly a wristwatch, comprising such a timepiece device.

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 :

  • les figures 1 à 6 montrent, en vue plane de dessus, des dispositifs horlogers selon respectivement des premier à sixième modes de réalisation de l'invention ; ces dispositifs horlogers sont à structure plane et transforment une première rotation, continue, en une deuxième rotation, au moins en partie saccadée ;
  • la figure 7 montre en vue plane de dessus un dispositif horloger selon un septième mode de réalisation de l'invention ; ce dispositif horloger est à structure plane et transforme une première rotation, continue, en une deuxième rotation, continue mais à vitesse variable ;
  • la figure 8 montre en vue en perspective un dispositif horloger selon un huitième mode de réalisation de l'invention ; ce dispositif horloger s'étend en hauteur sur plusieurs niveaux et transforme une première rotation, continue, en une deuxième rotation, au moins en partie saccadée ;
  • la figure 9 montre en vue en perspective un dispositif horloger selon un neuvième mode de réalisation de l'invention ; ce dispositif horloger s'étend en hauteur sur plusieurs niveaux et transforme une première rotation, continue, en une deuxième rotation, continue mais à vitesse variable ;
  • la figure 10 montre en vue en perspective un dispositif horloger selon un dixième mode de réalisation de l'invention ; ce dispositif horloger s'étend en hauteur sur plusieurs niveaux et transforme une première rotation, continue, en une deuxième rotation, continue mais à vitesse variable ; contrairement aux modes de réalisation des figures 1 à 9, ce dispositif horloger utilise une surface de came extérieure et non pas intérieure ;
  • la figure 11 montre en vue en perspective un dispositif horloger selon un onzième mode de réalisation de l'invention ; ce dispositif horloger s'étend en hauteur sur plusieurs niveaux et transforme une première rotation, continue, en une deuxième rotation, constituée d'une alternance d'une rotation continue et d'un saut de rotation ; contrairement aux modes de réalisation des figures 1 à 9, ce dispositif horloger utilise une surface de came extérieure et non pas intérieure ;
  • la figure 12 montre schématiquement un dispositif horloger selon un douzième mode de réalisation de de l'invention ; ce dispositif horloger transforme une première translation, continue, en une deuxième translation, continue mais à vitesse variable.
Other characteristics and advantages of the present invention will appear on reading the following detailed description given with reference to the appended drawings in which:
  • THE figures 1 to 6 show, in plan view from above, watchmaking devices according to respectively first to sixth embodiments of the invention; these watchmaking devices have a planar structure and transform a first, continuous rotation into a second rotation, at least partly jerky;
  • there Figure 7 shows in plan view from above a watchmaking device according to a seventh embodiment of the invention; this watchmaking device has a planar structure and transforms a first, continuous rotation into a second rotation, continuous but at variable speed;
  • there figure 8 shows in perspective view a watchmaking device according to an eighth embodiment of the invention; this watchmaking device extends in height over several levels and transforms a first, continuous rotation into a second rotation, at least partly jerky;
  • there Figure 9 shows in perspective view a watchmaking device according to a ninth embodiment of the invention; this watchmaking device extends in height over several levels and transforms a first, continuous rotation into a second rotation, continuous but at variable speed;
  • there Figure 10 shows in perspective view a watchmaking device according to a tenth embodiment of the invention; this watchmaking device extends in height over several levels and transforms a first, continuous rotation into a second rotation, continuous but at variable speed; unlike the embodiments of figures 1 to 9 , this watchmaking device uses an exterior cam surface and not an interior cam surface;
  • there Figure 11 shows in perspective view a watchmaking device according to an eleventh embodiment of the invention; this watchmaking device extends in height over several levels and transforms a first, continuous rotation into a second rotation, consisting of an alternation of a continuous rotation and a jump in rotation; unlike the embodiments of figures 1 to 9 , this watchmaking device uses an exterior and not an interior cam surface;
  • there Figure 12 schematically shows a watchmaking device according to a twelfth embodiment of the invention; this watchmaking device transforms a first, continuous translation into a second, continuous translation but at variable speed.

Dans les différents modes de réalisation décrits ci-dessous et illustrés sur les dessins, les mêmes repères sont utilisés pour désigner des éléments similaires.In the different embodiments described below and illustrated in the drawings, the same references are used to designate similar elements.

Dans le contexte de la présente invention, deux éléments sont dits coplanaires lorsqu'ils ont sensiblement la même épaisseur (hauteur) et sensiblement le même plan médian perpendiculaire à cette épaisseur.In the context of the present invention, two elements are said to be coplanar when they have substantially the same thickness (height) and substantially the same median plane perpendicular to this thickness.

A la figure 1 est représenté un dispositif horloger 1a de transformation d'une première rotation en une deuxième rotation, au moins en partie saccadée, selon un premier mode de réalisation de l'invention. Ce dispositif 1a est destiné à être intégré dans un mouvement d'une pièce d'horlogerie, typiquement une montre. Il comprend un organe rotatif d'entrée 2, un organe rotatif de sortie 3, une couronne 4 fixe présentant une denture intérieure 5, un levier 6 et un organe intermédiaire 7 mobile par rapport aux organes rotatif d'entrée et de sortie 2, 3 et à la couronne 4.To the figure 1 is shown a watchmaking device 1a for transforming a first rotation into a second rotation, at least partly jerky, according to a first embodiment of the invention. This device 1a is intended to be integrated into a movement of a timepiece, typically a watch. It comprises a rotating input member 2, a rotating output member 3, a fixed crown 4 having internal teeth 5, a lever 6 and a member intermediate 7 movable relative to the rotary input and output members 2, 3 and to the crown 4.

L'organe rotatif d'entrée 2, l'organe rotatif de sortie 3, la couronne 4 et l'organe intermédiaire 7 sont coaxiaux. L'organe rotatif de sortie 3, le levier 6 et l'organe intermédiaire 7 font partie d'une pièce monolithique qui est coplanaire avec l'organe rotatif d'entrée 2 et la couronne 4, l'organe rotatif d'entrée 2 étant situé au centre du dispositif 1 et la couronne 4 constituant la périphérie du dispositif 1a.The rotating input member 2, the rotating output member 3, the crown 4 and the intermediate member 7 are coaxial. The output rotating member 3, the lever 6 and the intermediate member 7 are part of a monolithic part which is coplanar with the input rotating member 2 and the crown 4, the input rotating member 2 being located in the center of the device 1 and the crown 4 constituting the periphery of the device 1a.

Le levier 6 est relié, dans la pièce monolithique, à l'organe intermédiaire 7 par un premier guidage flexible 8, ici une simple lame élastique. L'organe rotatif de sortie 3 et l'organe intermédiaire 7 sont reliés, dans la pièce monolithique, par un deuxième guidage flexible 9, constitué ici de deux lames élastiques RCC (« Remote Center Compliance » ; guidage flexible à centre de rotation déporté). Ainsi, le levier 6 peut pivoter par rapport à l'organe intermédiaire 7 autour d'un point de pivotement P, qui est situé à environ un tiers de la longueur de la lame 8 mesurée depuis le levier 6, et l'organe intermédiaire 7 peut pivoter autour de l'axe imaginaire A commun des organes 2, 3, 4, 7 en étant guidé par l'organe rotatif de sortie 3. L'organe rotatif de sortie 3 est solidaire d'un disque d'affichage (par exemple du type du disque 17 illustré sur la figure 2) qui est guidé en rotation autour de l'axe A par l'arbre sur lequel est monté l'organe rotatif d'entrée 2. Pour son assemblage avec le disque d'affichage, l'organe rotatif de sortie 3 comporte des oreilles 10 aptes à recevoir des goupilles collées, soudées ou fixées d'une autre manière au disque d'affichage.The lever 6 is connected, in the monolithic part, to the intermediate member 7 by a first flexible guide 8, here a simple elastic blade. The rotating output member 3 and the intermediate member 7 are connected, in the monolithic part, by a second flexible guide 9, here consisting of two elastic RCC blades (“Remote Center Compliance”; flexible guide with offset center of rotation) . Thus, the lever 6 can pivot relative to the intermediate member 7 around a pivot point P, which is located approximately one third of the length of the blade 8 measured from the lever 6, and the intermediate member 7 can pivot around the imaginary axis A common to the members 2, 3, 4, 7 while being guided by the rotating output member 3. The rotating output member 3 is integral with a display disc (for example of the type of disk 17 illustrated on the figure 2 ) which is guided in rotation around the axis A by the shaft on which the rotating input member 2 is mounted. For its assembly with the display disk, the rotating output member 3 has ears 10 adapted to receive pins glued, soldered or otherwise attached to the display disc.

L'organe rotatif d'entrée 2 est entraîné continûment en rotation autour de l'axe A dans le sens horaire par l'organe moteur du mouvement. Une rotation qui est cadencée au rythme des oscillations de l'organe réglant du mouvement, comme c'est le cas ici, est en effet considérée comme continue dans la présente invention. Pour son entraînement, l'organe rotatif d'entrée 2 est solidaire d'un pignon ou d'une roue (non représenté) relié cinématiquement au rouage de finissage du mouvement. L'organe rotatif d'entrée 2 comprend deux dents d'engrènement 11 qui accueillent entre elles une première dent d'engrènement 12 du levier 6. Une deuxième dent d'engrènement 13 du levier 6, diamétralement opposée à la première par rapport au point de pivotement P, est engagée entre deux dents d'engrènement 14 de l'organe rotatif de sortie 3.The rotary input member 2 is continuously rotated around the axis A in a clockwise direction by the movement motor member. A rotation which is timed to the rhythm of the oscillations of the movement regulating member, as is the case here, is in fact considered as continuous in the present invention. For its drive, the rotary input member 2 is integral with a pinion or a wheel (not shown) kinematically connected to the gear train. finishing of the movement. The rotary input member 2 comprises two meshing teeth 11 which accommodate between them a first meshing tooth 12 of the lever 6. A second meshing tooth 13 of the lever 6, diametrically opposed to the first with respect to the point pivot P, is engaged between two meshing teeth 14 of the rotating output member 3.

La denture intérieure 5 est composée de dents en forme de vagues comprenant chacune un flanc d'arrêt 15 contre lequel peut s'appuyer un bec 16 du levier 6 sous l'action des guidages flexibles 8, 9. La rotation de l'organe rotatif d'entrée 2 fait glisser le bec 16 sur le flanc d'arrêt 15 sur lequel il se trouve et pivoter le levier 6 autour de son point de pivotement P dans le sens antihoraire en déformant les guidages flexibles 8, 9 jusqu'à ce que le bec 16 sorte de la denture 5. Dès que le bec 16 sort de la denture 5, le levier 6 est libéré et la force de rappel des guidages flexibles 8, 9 le fait tomber sur le flanc d'arrêt 15 de la dent suivante, entraînant avec lui l'organe de sortie 3 par sa deuxième dent d'engrènement 13. L'organe de sortie 3 et le disque d'affichage se déplacent ainsi par sauts, ce qui permet par exemple d'afficher de manière digitale l'heure courante, les unités et les dizaines des minutes courantes (cf. l'affichage des unités des minutes par le disque 17 sur la figure 2), un temps chronométré, un compte à rebours, le quantième, le jour, la semaine, la réserve de marche, ou autre.The internal teeth 5 are composed of wave-shaped teeth each comprising a stopping flank 15 against which a nose 16 of the lever 6 can rest under the action of the flexible guides 8, 9. The rotation of the rotating member input 2 slides the nozzle 16 on the stopping side 15 on which it is located and pivots the lever 6 around its pivot point P in the counterclockwise direction by deforming the flexible guides 8, 9 until the nose 16 comes out of the teeth 5. As soon as the nose 16 comes out of the teeth 5, the lever 6 is released and the return force of the flexible guides 8, 9 causes it to fall onto the stopping side 15 of the next tooth , driving with it the output member 3 by its second meshing tooth 13. The output member 3 and the display disc thus move in jumps, which makes it possible, for example, to digitally display the current time, the units and tens of the current minutes (see the display of the units of the minutes by disk 17 on the figure 2 ), a timed time, a countdown, the date, the day, the week, the power reserve, or other.

Grâce à l'organe flottant que constitue l'organe intermédiaire 7, le point de pivotement P du levier 6 se déplace par rapport à la couronne 4, à l'organe de sortie 3 et au bâti sur lequel est monté le dispositif 1a pendant le glissement du bec 16 sur le flanc d'arrêt 15. Ainsi, ce n'est pas seulement la rotation du levier 6 autour du point de pivotement P mais également le déplacement du point de pivotement P qui permet au levier 6 de s'échapper du flanc d'arrêt 15. Cela permet de réduire l'amplitude de rotation du levier 6 autour du point de pivotement P, donc la hauteur des dents de la denture intérieure 5, donc l'encombrement du dispositif 1a dans son plan. Une amplitude de rotation réduite du levier 6 diminue aussi la consommation énergétique du dispositif 1a. La mobilité du point de pivotement P permet en outre de diminuer les contraintes appliquées dans le ressort de rappel du levier 6, à savoir ici le premier guidage flexible 8, ou diminuer les dimensions du ressort de rappel sans augmenter les contraintes qu'il subit.Thanks to the floating member that constitutes the intermediate member 7, the pivot point P of the lever 6 moves relative to the crown 4, to the output member 3 and to the frame on which the device 1a is mounted during the sliding of the nozzle 16 on the stopping side 15. Thus, it is not only the rotation of the lever 6 around the pivot point P but also the movement of the pivot point P which allows the lever 6 to escape from the stopping flank 15. This makes it possible to reduce the amplitude of rotation of the lever 6 around the pivot point P, therefore the height of the teeth of the internal teeth 5, therefore the size of the device 1a in its plane. A reduced amplitude of rotation of the lever 6 also reduces the energy consumption of the device 1a. The mobility of the point of pivoting P also makes it possible to reduce the stresses applied in the return spring of the lever 6, namely here the first flexible guide 8, or to reduce the dimensions of the return spring without increasing the stresses it undergoes.

On notera par ailleurs que, par des rapports d'engrenage adaptés entre l'organe rotatif d'entrée 2 et le levier 6 et entre le levier 6 et l'organe rotatif de sortie 3, l'engrènement entre le levier 6 et l'organe rotatif de sortie 3 peut être assimilé à un simple roulement du levier 6 sur l'organe rotatif de sortie 3 (mouvement hypocycloïdal) qui maintient ce dernier immobile. La coopération entre la deuxième dent d'engrènement 13 du levier 6 et les deux dents d'engrènement 14 de l'organe de sortie 3 immobilise donc l'organe rotatif de sortie 3 entre deux sauts et permet l'entraînement de l'organe rotatif de sortie 3 par le levier 6 pendant chaque saut.It will also be noted that, by adapted gear ratios between the rotating input member 2 and the lever 6 and between the lever 6 and the rotating output member 3, the meshing between the lever 6 and the rotating output member 3 can be compared to a simple rolling of the lever 6 on the rotating output member 3 (hypocycloidal movement) which keeps the latter immobile. The cooperation between the second meshing tooth 13 of the lever 6 and the two meshing teeth 14 of the output member 3 therefore immobilizes the rotating output member 3 between two jumps and allows the driving of the rotating member output 3 by lever 6 during each jump.

On appréciera qu'avec un tel dispositif, tout double saut ou saut incomplet du levier 6 est évité.It will be appreciated that with such a device, any double jump or incomplete jump of lever 6 is avoided.

Ce dispositif 1a est peu encombrant, que ce soit dans son plan ou en hauteur. En outre, le caractère monolithique de l'ensemble levier 6 - organe intermédiaire 7 - organe rotatif de sortie 3 - guidages flexibles 8, 9, ensemble qui peut être fabriqué par exemple par le procédé LIGA ou DRIE, permet une grande précision de fonctionnement.This device 1a is compact, whether in its plan or in height. In addition, the monolithic nature of the lever assembly 6 - intermediate member 7 - rotating output member 3 - flexible guides 8, 9, an assembly which can be manufactured for example by the LIGA or DRIE process, allows great operating precision.

Un autre avantage important de ce dispositif 1a est qu'il offre une grande liberté quant au mouvement que l'on souhaite produire en sortie. En jouant sur le profil de la denture intérieure 5 et sur les rapports d'engrenage entre l'organe rotatif d'entrée 2 et le levier 6 et entre le levier 6 et l'organe rotatif de sortie 3, il est en effet possible de déplacer l'organe rotatif de sortie 3 selon une rotation purement saccadée (sauts uniquement) ou partiellement saccadée (combinaison, par exemple alternance, de rotations continues et de sauts). On peut ainsi afficher une information de manière instantanée, comme décrit ci-dessus, ou semi-traînante. On peut également piloter un automate selon un schéma de rotation irrégulier.Another important advantage of this device 1a is that it offers great freedom as to the movement that we wish to produce at the output. By varying the profile of the internal teeth 5 and the gear ratios between the input rotary member 2 and the lever 6 and between the lever 6 and the output rotary member 3, it is in fact possible to move the rotating output member 3 according to a purely jerky rotation (jumps only) or partially jerky (combination, for example alternation, of continuous rotations and jumps). Information can thus be displayed instantaneously, as described above, or semi-trailingly. It is also possible to control an automaton according to an irregular rotation pattern.

Le dispositif 1a peut être considéré comme un différentiel dans lequel une des deux entrées commande l'autre pour n'autoriser qu'un seul scénario de rotation. L'organe rotatif d'entrée 2 est un planétaire d'entrée du différentiel, le levier 6 est un satellite, l'organe intermédiaire 7 est le porte-satellite et l'organe rotatif de sortie 3 est le planétaire de sortie. L'avantage ici est que le différentiel est plat et qu'il n'existe pas d'élément pouvant se mettre de biais et gripper le système.Device 1a can be considered as a differential in which one of the two inputs controls the other to authorize only one rotation scenario. The input rotating member 2 is a differential input sun gear, the lever 6 is a satellite, the intermediate member 7 is the planet carrier and the output rotating member 3 is the output sun gear. The advantage here is that the differential is flat and there is no element that could get sideways and seize the system.

En considérant un tel différentiel, il est aussi possible de rapprocher ou d'éloigner du point de pivotement P l'engrènement entre le levier 6 et l'organe rotatif de sortie 3 pour donner au levier 6 la fonction d'un satellite roue-pignon.By considering such a differential, it is also possible to bring the meshing between the lever 6 and the rotating output member 3 closer to or further from the pivot point P to give the lever 6 the function of a wheel-pinion satellite. .

La couronne 4 est typiquement fixe, comme déjà indiqué, mais elle pourrait être entraînée en rotation pour par exemple faire varier la vitesse d'affichage et/ou les positions d'arrêt du levier 6.The crown 4 is typically fixed, as already indicated, but it could be rotated to, for example, vary the display speed and/or the stopping positions of the lever 6.

Les flancs d'arrêt 15 des dents de la couronne 4 forment ensemble une surface de came que suit un suiveur de came, en l'occurrence le levier 6 avec son bec 16, et qui entoure le suiveur de came, l'organe rotatif d'entrée 2, l'organe rotatif de sortie 3 et l'organe intermédiaire 7.The stopping flanks 15 of the teeth of the crown 4 together form a cam surface which is followed by a cam follower, in this case the lever 6 with its beak 16, and which surrounds the cam follower, the rotating member d the inlet 2, the rotating output member 3 and the intermediate member 7.

Un deuxième mode de réalisation du dispositif horloger selon l'invention est illustré à la figure 2 et désigné par le repère 1b. Il diffère du premier mode de réalisation essentiellement en ce que l'organe rotatif d'entrée 2 et le levier 6 s'engrènent par deux secteurs dentés et en ce que le levier 6 et l'organe rotatif de sortie 3 s'engrènent également par deux secteurs dentés.A second embodiment of the watchmaking device according to the invention is illustrated in figure 2 and designated by reference 1b. It differs from the first embodiment essentially in that the rotary input member 2 and the lever 6 mesh via two toothed sectors and in that the lever 6 and the rotary output member 3 also mesh via two toothed sectors.

Selon un troisième mode de réalisation du dispositif horloger selon l'invention, représenté à la figure 3 et désigné par le repère 1c, le disque d'affichage 17 est remplacé par une aiguille 18, par exemple une aiguille de seconde morte, solidaire de l'organe rotatif de sortie 3 et guidée en rotation autour de l'axe A par l'arbre de l'organe rotatif d'entrée 2.According to a third embodiment of the watchmaking device according to the invention, represented in Figure 3 and designated by the mark 1c, the display disc 17 is replaced by a needle 18, for example a dead seconds hand, secured to the rotating output member 3 and guided in rotation around the axis A by the shaft of the rotating input member 2.

Selon un quatrième mode de réalisation, représenté à la figure 4, le dispositif horloger 1d comprend deux leviers 6a, 6b commandés par l'organe rotatif d'entrée 2 et l'organe rotatif de sortie 3 est en deux parties 3a, 3b solidarisées par le disque d'affichage ou autre organe d'affichage. Deux pièces monolithiques coplanaires et symétriques par rapport à l'axe A comprennent chacune un des deux leviers 6a, 6b, une des deux parties 3a, 3b de l'organe rotatif de sortie 3, un organe intermédiaire 7a, 7b, une lame élastique 8a, 8b articulant le levier 6a, 6b à l'organe intermédiaire 7a, 7b et une lame élastique 9a, 9b reliant l'organe intermédiaire 7a, 7b à l'organe rotatif de sortie 3 pour le guidage en rotation de l'organe intermédiaire 7a, 7b. Les leviers 6a, 6b coopèrent avec la denture interne 5 de manière déphasée. Un plus grand nombre de leviers et de pièces monolithiques correspondantes peuvent bien entendu être prévus. Prévoir plusieurs leviers permet de réduire le nombre de dents de la couronne 4 et de garantir un bon repositionnement des leviers sur les flancs d'arrêt 15.According to a fourth embodiment, represented in Figure 4 , the watchmaking device 1d comprises two levers 6a, 6b controlled by the organ rotary input 2 and the rotary output member 3 is in two parts 3a, 3b secured by the display disk or other display member. Two monolithic parts coplanar and symmetrical with respect to the axis A each comprise one of the two levers 6a, 6b, one of the two parts 3a, 3b of the rotating output member 3, an intermediate member 7a, 7b, an elastic blade 8a , 8b articulating the lever 6a, 6b to the intermediate member 7a, 7b and an elastic blade 9a, 9b connecting the intermediate member 7a, 7b to the rotating output member 3 for guiding the intermediate member 7a in rotation , 7b. The levers 6a, 6b cooperate with the internal teeth 5 out of phase. A larger number of levers and corresponding monolithic parts can of course be provided. Providing several levers makes it possible to reduce the number of teeth of the crown 4 and to guarantee good repositioning of the levers on the stopping sides 15.

Selon un cinquième mode de réalisation du dispositif horloger selon l'invention, illustré à la figure 5 et désigné par le repère 1e, l'ensemble comprenant le levier 6, l'organe intermédiaire 7 et l'organe rotatif de sortie 3 n'est plus monolithique. Le levier 6 et l'organe intermédiaire 7 sont ici des pièces distinctes articulées entre elles par une liaison pivot 19 et l'organe intermédiaire 7 est guidé en rotation autour de l'axe A par une glissière en arc de cercle 20 que comporte l'organe rotatif de sortie 3. Le ressort du levier 6, constitué par les premier et deuxième guidages flexibles 8, 9 dans les modes de réalisation précédents, est ici formé par une lame 21 dont une extrémité est jointe à l'organe rotatif d'entrée 2 et l'autre extrémité, libre, s'appuie sur le dos du levier 6. L'organe rotatif d'entrée 2, l'organe rotatif de sortie 3, la couronne 4, le levier 6, l'organe intermédiaire 7 et la lame 21 sont coplanaires.According to a fifth embodiment of the watchmaking device according to the invention, illustrated in Figure 5 and designated by the reference 1e, the assembly comprising the lever 6, the intermediate member 7 and the rotating output member 3 is no longer monolithic. The lever 6 and the intermediate member 7 are here distinct parts articulated together by a pivot connection 19 and the intermediate member 7 is guided in rotation around the axis A by a slide in an arc of a circle 20 which the rotating output member 3. The spring of the lever 6, constituted by the first and second flexible guides 8, 9 in the previous embodiments, is here formed by a blade 21, one end of which is joined to the rotating input member 2 and the other end, free, rests on the back of the lever 6. The rotating input member 2, the rotating output member 3, the crown 4, the lever 6, the intermediate member 7 and the blade 21 are coplanar.

Un sixième mode de réalisation est illustré à la figure 6. Le dispositif horloger 1f selon ce sixième mode de réalisation est similaire au dispositif horloger 1a selon le premier mode de réalisation. Cependant, l'organe intermédiaire 7 comprend un bras de guidage 22 qui épouse une portion courbe 23 du levier 6 concentrique avec le point de pivotement P du levier 6 par rapport à l'organe intermédiaire 7 pour garantir un guidage en rotation précis du levier 6 par rapport à l'organe intermédiaire 7. Ce bras de guidage 22 peut comprendre des parties saillantes 24 formant des patins de guidage en contact avec la portion courbe 23.A sixth embodiment is illustrated in Figure 6 . The watch device 1f according to this sixth embodiment is similar to the watch device 1a according to the first embodiment. However, the intermediate member 7 comprises a guide arm 22 which matches a curved portion 23 of the lever 6 concentric with the pivot point P of the lever 6 relative to the member intermediate 7 to guarantee precise rotational guidance of the lever 6 relative to the intermediate member 7. This guide arm 22 may comprise projecting parts 24 forming guide pads in contact with the curved portion 23.

Une autre caractéristique du dispositif horloger 1f est que la denture intérieure 5 de la couronne 4 s'étend sur moins de 360°, étant interrompue par une surface de liaison 25. Ainsi, sur un tour de rotation de l'organe rotatif d'entrée 2, le levier 6 fait faire à l'organe rotatif de sortie 3 une série de sauts courts (lorsque le levier 6 coopère avec la denture 5) suivie d'un saut long (lorsque le levier 6 se déplace en regard de la surface de liaison 25). Les flancs d'arrêt 15 de la denture 5 constituent ensemble une surface de came avec laquelle coopère un suiveur de came, à savoir le levier 6 et son bec 16.Another characteristic of the watchmaking device 1f is that the internal teeth 5 of the crown 4 extend over less than 360°, being interrupted by a connecting surface 25. Thus, on one revolution of rotation of the rotating input member 2, the lever 6 causes the rotating output member 3 to make a series of short jumps (when the lever 6 cooperates with the teeth 5) followed by a long jump (when the lever 6 moves facing the surface of connection 25). The stopping flanks 15 of the teeth 5 together constitute a cam surface with which a cam follower cooperates, namely the lever 6 and its beak 16.

Ce sixième mode de réalisation peut être modifié en rendant la surface de liaison 25 concentrique avec l'axe A de sorte à la transformer en une surface de glissement avec laquelle peut coopérer le bec 16 du levier 6 pour faire effectuer à l'organe rotatif de sortie 3 un déplacement continu après la série de sauts causée par la denture 5. Dans ce cas, la surface de came est constituée par les flancs d'arrêt 15 et par la surface 25.This sixth embodiment can be modified by making the connecting surface 25 concentric with the axis A so as to transform it into a sliding surface with which the nose 16 of the lever 6 can cooperate to cause the rotating member to perform output 3 a continuous movement after the series of jumps caused by the teeth 5. In this case, the cam surface is constituted by the stopping flanks 15 and by the surface 25.

Un dispositif horloger 1g selon un septième mode de réalisation de l'invention, illustré à la figure 7, diffère du dispositif horloger 1f selon le sixième mode de réalisation en ce que la surface de came avec laquelle coopère le bec 16 est constituée par une surface de glissement 26 dont la distance à l'axe A varie. La coopération entre le bec 16 et cette surface de glissement 26 produit un déplacement continu, mais à vitesse variable, de l'organe rotatif de sortie 3.A 1g watch device according to a seventh embodiment of the invention, illustrated in Figure 7 , differs from the watchmaking device 1f according to the sixth embodiment in that the cam surface with which the nose 16 cooperates is constituted by a sliding surface 26 whose distance from the axis A varies. The cooperation between the nozzle 16 and this sliding surface 26 produces a continuous movement, but at variable speed, of the rotating output member 3.

La figure 8 montre un dispositif horloger 1h selon un huitième mode de réalisation de l'invention. A la différence des modes de réalisation précédents, ce dispositif horloger 1h n'est pas plan. Il s'étend en effet sur plusieurs niveaux et est formé d'un assemblage de pièces. L'organe rotatif d'entrée 2 est ici une roue dentée montée autour d'un arbre A'. L'organe rotatif de sortie 3 est une couronne à denture intérieure coaxiale avec l'arbre A' et guidée en rotation par le sommet des dents de la denture intérieure 5 de la couronne 4. L'organe intermédiaire 7 est une cage montée autour de l'arbre A' de manière libre en rotation par rapport à l'organe rotatif d'entrée 2 et portant le levier 6, ce dernier étant articulé à l'organe intermédiaire 7 par un arbre B. Le levier 6 est solidaire en rotation d'une roue satellite 27 qui engrène à la fois avec la denture intérieure de l'organe rotatif de sortie 3 et avec l'organe rotatif d'entrée 2. Une lame ressort 28 est fixée à l'une de ses extrémités à l'organe intermédiaire 7 et jointe à son autre extrémité au levier 6 pour faire office de ressort de rappel maintenant le bec 16 du levier 6 contre le flanc d'arrêt 15 des dents de la couronne 4.There figure 8 shows a 1 hour watch device according to an eighth embodiment of the invention. Unlike previous embodiments, this 1 hour watch device is not planar. It extends over several levels and is made up of an assembly of parts. The rotating input member 2 is here a toothed wheel mounted around a shaft A'. The rotating output member 3 is a crown with internal teeth coaxial with the shaft A' and guided in rotation by the top teeth of the internal teeth 5 of the crown 4. The intermediate member 7 is a cage mounted around the shaft A' in a free rotating manner relative to the rotary input member 2 and carrying the lever 6, the latter being articulated to the intermediate member 7 by a shaft B. The lever 6 is integral in rotation with a satellite wheel 27 which meshes both with the internal teeth of the rotating output member 3 and with the member rotary input 2. A leaf spring 28 is fixed at one of its ends to the intermediate member 7 and joined at its other end to the lever 6 to act as a return spring holding the nozzle 16 of the lever 6 against the stopping flank 15 of the teeth of the crown 4.

Le dispositif horloger 1h fonctionne selon le même principe que les dispositifs 1a, 1b, 1c et 1e pour produire un mouvement saccadé en sortie. Il est plus encombrant en hauteur mais, comme les modes de réalisation précédents, est peu encombrant en projection dans un plan perpendiculaire à la hauteur grâce à la mobilité de l'organe intermédiaire 7 qui permet de réduire la hauteur des dents de la denture intérieure 5 de la couronne 4 en réduisant l'amplitude de rotation du levier 6. La mobilité de l'organe intermédiaire 7 permet en outre de diminuer les contraintes à l'intérieur du ressort de rappel 28 ou de diminuer les dimensions du ressort du rappel 28 sans augmenter les contraintes qu'il subit.The 1h watch device operates according to the same principle as the devices 1a, 1b, 1c and 1e to produce a jerky movement at the output. It is more bulky in height but, like the previous embodiments, is compact in projection in a plane perpendicular to the height thanks to the mobility of the intermediate member 7 which makes it possible to reduce the height of the teeth of the internal teeth 5 of the crown 4 by reducing the amplitude of rotation of the lever 6. The mobility of the intermediate member 7 also makes it possible to reduce the stresses inside the return spring 28 or to reduce the dimensions of the return spring 28 without increase the constraints it undergoes.

Un dispositif horloger 1i selon un neuvième mode de réalisation est illustré à la figure 9. Il diffère du dispositif 1h en ce que la denture intérieure 5 de la couronne 4 est remplacée par une surface de glissement 29 de forme générale triangulaire avec laquelle coopère le bec 16 du levier 6 pour faire effectuer à l'organe rotatif de sortie 3 un déplacement continu mais à vitesse variable. Comme dans le dispositif 1g, la mobilité de l'organe intermédiaire 7 permet d'obtenir le mouvement souhaité de l'organe rotatif de sortie 3 avec un encombrement réduit en projection dans un plan perpendiculaire à la hauteur puisque les différences de distance entre les différents points de la surface de glissement 29 et l'axe de l'arbre A' peuvent être réduites.A watchmaking device 1i according to a ninth embodiment is illustrated in the Figure 9 . It differs from device 1h in that the internal teeth 5 of the crown 4 are replaced by a sliding surface 29 of generally triangular shape with which the nose 16 of the lever 6 cooperates to cause the rotating output member 3 to move continuous but at variable speed. As in the device 1g, the mobility of the intermediate member 7 makes it possible to obtain the desired movement of the rotating output member 3 with reduced bulk in projection in a plane perpendicular to the height since the differences in distance between the different points of the sliding surface 29 and the axis of the shaft A' can be reduced.

A la figure 10 est représenté un dispositif horloger 1j selon un dixième mode de réalisation de l'invention. Dans ce dispositif 1j, la surface de came 29' avec laquelle coopère le levier ou suiveur de came 6 pour produire en sortie un mouvement continu mais à vitesse variable est une surface extérieure et non pas intérieure comme dans le dispositif 1i. Cette surface de came 29' est définie par une came 30 fixe et coaxiale à l'organe rotatif d'entrée 2 et à l'organe intermédiaire 7.To the Figure 10 is shown a watchmaking device 1j according to a tenth embodiment of the invention. In this device 1j, the cam surface 29' with which the lever or cam follower 6 cooperates to produce a continuous movement at output but at variable speed is an exterior surface and not an interior as in the device 1i. This cam surface 29' is defined by a cam 30 fixed and coaxial with the rotating input member 2 and the intermediate member 7.

La figure 11 montre un dispositif horloger 1k selon un onzième mode de réalisation de l'invention. Comme dans le dispositif 1j, la surface de came, désignée ici par 31, est une surface extérieure. Cependant, cette surface de came 31 est de type limaçon, c'est-à-dire qu'elle conformée pour faire effectuer au levier ou suiveur de came 6, donc à l'organe rotatif de sortie 3, un saut par tour de rotation de l'organe rotatif d'entrée 2, le levier ou suiveur de came 6 et l'organe rotatif de sortie 3 se déplaçant continûment le reste du temps.There Figure 11 shows a 1k watch device according to an eleventh embodiment of the invention. As in device 1j, the cam surface, designated here by 31, is an exterior surface. However, this cam surface 31 is of the snail type, that is to say it is shaped to make the lever or cam follower 6, therefore the rotary output member 3, perform one jump per revolution of rotation of the input rotating member 2, the lever or cam follower 6 and the output rotating member 3 moving continuously the rest of the time.

Enfin, un douzième mode de réalisation de l'invention est illustré schématiquement à la figure 12 et désigné par 1m. Les organes d'entrée et de sortie, 2' et 3', sont ici à déplacement linéaire plutôt que rotatif, guidé par des guidages flexibles ou rigides. L'organe intermédiaire 7' est lui aussi à déplacement linéaire, guidé par un guidage flexible ou rigide. Le suiveur de came 6' est solidaire en rotation de la roue satellite 27' portée par l'organe intermédiaire 7'. Le suiveur de came 6' coopère avec la surface de came 26' sous l'action d'un ressort 8' pour transformer le mouvement linéaire, constant, de l'organe d'entrée 2' en un mouvement linéaire, à vitesse variable, de l'organe de sortie 3'. Dans une variante (non représentée), la surface de came est dentée pour produire au niveau de l'organe de sortie 3' un déplacement linéaire saccadé.Finally, a twelfth embodiment of the invention is illustrated schematically in the Figure 12 and designated by 1m. The input and output members, 2' and 3', are here with linear rather than rotary movement, guided by flexible or rigid guides. The intermediate member 7' also has linear movement, guided by flexible or rigid guidance. The cam follower 6' is integral in rotation with the satellite wheel 27' carried by the intermediate member 7'. The cam follower 6' cooperates with the cam surface 26' under the action of a spring 8' to transform the constant linear movement of the input member 2' into a linear movement at variable speed, of the output member 3'. In a variant (not shown), the cam surface is toothed to produce a jerky linear movement at the output member 3'.

Les modes de réalisation ci-dessus ont été décrits à titre d'exemple seulement. Il va de soi que des modifications pourraient être faites dans chacun d'entre eux sans sortir du cadre de l'invention revendiquée. Par exemple :

  • les engrènements entre le levier ou suiveur de came 6 et les organes rotatif d'entrée et de sortie 2, 3, en particulier l'engrènement entre le levier ou suiveur de came 6 et l'organe rotatif d'entrée 2, pourraient être remplacés par des systèmes à goupilles et trous oblongs ;
  • le premier guidage flexible 8 reliant le levier 6 à l'organe intermédiaire 7 pourrait être sous la forme de deux lames croisées, séparées ou non, c'est-à-dire situées dans deux plans parallèles différents ou dans le même plan ;
  • le deuxième guidage flexible 9, par exemple de type RCC, pourrait être placé entre l'organe intermédiaire 7 et l'organe rotatif d'entrée 2 plutôt qu'entre l'organe intermédiaire 7 et l'organe rotatif de sortie 3 ;
  • le deuxième guidage flexible 9 pourrait relier l'organe intermédiaire 7 et l'organe rotatif de sortie 3 et un troisième guidage flexible, qui pourrait aussi être du type RCC, pourrait relier l'organe intermédiaire 7 à l'organe rotatif d'entrée 2 ;
  • l'organe intermédiaire 7 pourrait être guidé en rotation non coaxialement à l'organe rotatif d'entrée 2 ou même être guidé en translation ;
  • la rotation de l'organe rotatif d'entrée 2 pourrait être saccadée plutôt que continue, le dispositif selon l'invention servant alors à transformer, par exemple, une première rotation saccadée en une deuxième rotation saccadée, différente de la première.
The above embodiments have been described by way of example only. It goes without saying that modifications could be made in each of them without departing from the scope of the claimed invention. For example :
  • the meshing between the lever or cam follower 6 and the rotary input and output members 2, 3, in particular the meshing between the lever or cam follower 6 and the rotary input member 2, could be replaced by systems with pins and oblong holes;
  • the first flexible guide 8 connecting the lever 6 to the intermediate member 7 could be in the form of two crossed blades, separated or not, that is to say located in two different parallel planes or in the same plane;
  • the second flexible guide 9, for example of the RCC type, could be placed between the intermediate member 7 and the rotating input member 2 rather than between the intermediate member 7 and the rotating output member 3;
  • the second flexible guide 9 could connect the intermediate member 7 and the rotating output member 3 and a third flexible guide, which could also be of the RCC type, could connect the intermediate member 7 to the rotating input member 2 ;
  • the intermediate member 7 could be guided in rotation not coaxially with the rotating input member 2 or even be guided in translation;
  • the rotation of the rotary input member 2 could be jerky rather than continuous, the device according to the invention then serving to transform, for example, a first jerky rotation into a second jerky rotation, different from the first.

Claims (15)

Dispositif horloger (1a-1m) comprenant - un organe mobile d'entrée (2 ; 2'), - un organe mobile de sortie (3 ; 3a ; 3'), - une surface de came (15 ; 26 ; 29 ; 29' ; 31 ; 26') fixe ou mobile, - un organe élastique (8, 9 ; 8a, 9a ; 21 ; 28 ; 8'), et - un suiveur de came (6 ; 6a ; 6') agencé pour être commandé par l'organe mobile d'entrée (2 ; 2') et pour coopérer avec la surface de came (15 ; 26 ; 29 ; 29' ; 31 ; 26') sous l'action de l'organe élastique (8, 9 ; 8a, 9a ; 21 ; 28 ; 8') pour entraîner l'organe mobile de sortie (3 ; 3a ; 3'), caractérisé en ce qu'il comprend en outre un organe intermédiaire (7 ; 7a ; 7') mobile par rapport à l'organe mobile d'entrée (2 ; 2'), à l'organe mobile de sortie (3 ; 3a ; 3') et à la surface de came (15 ; 26 ; 29 ; 29' ; 31 ; 26') et auquel est articulé le suiveur de came (6 ; 6a ; 6'), cette articulation définissant un point de pivotement (P) mobile du suiveur de came (6 ; 6a ; 6') dans le dispositif horloger (1a-1m).Watchmaking device (1a-1m) including - a mobile input member (2; 2'), - a mobile output member (3; 3a; 3'), - a fixed or movable cam surface (15; 26; 29; 29';31;26'), - an elastic member (8, 9; 8a, 9a; 21; 28; 8'), and - a cam follower (6; 6a; 6') arranged to be controlled by the movable input member (2; 2') and to cooperate with the cam surface (15; 26; 29; 29'; 31 26') under the action of the elastic member (8, 9; 8a, 9a; 21; 28; 8') to drive the movable output member (3; 3a; 3'), characterized in that it further comprises an intermediate member (7; 7a; 7') movable relative to the movable input member (2; 2'), to the movable output member (3; 3a; 3') and to the cam surface (15; 26; 29; 29';31;26') and to which the cam follower (6; 6a; 6') is articulated, this articulation defining a pivot point (P ) mobile of the cam follower (6; 6a; 6') in the watchmaking device (1a-1m). Dispositif horloger selon la revendication 1, caractérisé en ce que le suiveur de came (6 ; 6a ; 6') coopère avec l'organe mobile d'entrée (2 ; 2') par engrènement.Watchmaking device according to claim 1, characterized in that the cam follower (6; 6a; 6') cooperates with the mobile input member (2; 2') by meshing. Dispositif horloger selon la revendication 1 ou 2, caractérisé en ce que le suiveur de came (6 ; 6a ; 6') coopère avec l'organe mobile de sortie (3 ; 3a ; 3') par engrènement.Watchmaking device according to claim 1 or 2, characterized in that the cam follower (6; 6a; 6') cooperates with the movable output member (3; 3a; 3') by meshing. Dispositif horloger selon les revendications 2 et 3, caractérisé en ce que la surface de came (15) comprend des flancs d'arrêt d'une denture (5) sur chacun desquels peut glisser un bec (16) du suiveur de came (6 ; 6a) avant de sauter sur le flanc d'arrêt suivant pour faire effectuer un saut à l'organe mobile de sortie (3), et en ce que l'engrènement du suiveur de came (6 ; 6a) avec l'organe mobile d'entrée (2) et avec l'organe mobile de sortie (3) est tel que, entre deux sauts du suiveur de came (6 ; 6a), ce dernier maintient l'organe mobile de sortie (3) immobile.Watchmaking device according to claims 2 and 3, characterized in that the cam surface (15) comprises stopping flanks of a toothing (5) on each of which can slide a beak (16) of the cam follower (6; 6a) before jumping onto the next stopping flank to cause the movable output member (3) to jump, and in that the meshing of the cam follower (6; 6a) with the movable input member (2) and with the movable output member (3) is such that, between two jumps of the cam follower (6; 6a), this the latter keeps the movable output member (3) immobile. Dispositif horloger selon l'une quelconque des revendications 1 à 4, caractérisé en ce que l'organe mobile d'entrée (2) et l'organe mobile de sortie (3 ; 3a) sont rotatifs.Watchmaking device according to any one of claims 1 to 4, characterized in that the movable input member (2) and the movable output member (3; 3a) are rotatable. Dispositif horloger selon la revendication 5, caractérisé en ce que la surface de came (15 ; 26 ; 29) entoure le suiveur de came (6 ; 6a).Watchmaking device according to claim 5, characterized in that the cam surface (15; 26; 29) surrounds the cam follower (6; 6a). Dispositif horloger selon la revendication 5 ou 6, caractérisé en ce que l'organe mobile de sortie (3 ; 3a), le suiveur de came (6 ; 6a) et l'organe intermédiaire (7) sont coplanaires.Watchmaking device according to claim 5 or 6, characterized in that the movable output member (3; 3a), the cam follower (6; 6a) and the intermediate member (7) are coplanar. Dispositif horloger selon l'une quelconque des revendications 5 à 7, caractérisé en ce que l'organe mobile de sortie (3 ; 3a), le suiveur de came (6 ; 6a) et l'organe intermédiaire (7 ; 7a) font partie d'une même pièce monolithique.Watchmaking device according to any one of claims 5 to 7, characterized in that the movable output member (3; 3a), the cam follower (6; 6a) and the intermediate member (7; 7a) form part of the same monolithic part. Dispositif horloger selon l'une quelconque des revendications 5 à 8, caractérisé en ce que le suiveur de came (6 ; 6a) est articulé à l'organe intermédiaire (7 ; 7a) par un premier guidage flexible (8 ; 8a).Watchmaking device according to any one of claims 5 to 8, characterized in that the cam follower (6; 6a) is articulated to the intermediate member (7; 7a) by a first flexible guide (8; 8a). Dispositif horloger selon la revendication 9, caractérisé en ce que le premier guidage flexible (8 ; 8a) est une simple lame élastique.Watchmaking device according to claim 9, characterized in that the first flexible guide (8; 8a) is a simple elastic blade. Dispositif horloger selon l'une quelconque des revendications 5 à 10, caractérisé en ce que l'organe intermédiaire (7 ; 7a) est guidé par un deuxième guidage flexible (9 ; 9a).Watchmaking device according to any one of claims 5 to 10, characterized in that the intermediate member (7; 7a) is guided by a second flexible guide (9; 9a). Dispositif horloger selon la revendication 11, caractérisé en ce que le deuxième guidage flexible (9) est du type à centre de rotation déporté.Watchmaking device according to claim 11, characterized in that the second flexible guide (9) is of the type with an offset center of rotation. Dispositif horloger selon l'une quelconque des revendications 5 à 12, caractérisé en ce que l'organe intermédiaire (7 ; 7a) est guidé en rotation coaxialement à l'organe mobile d'entrée (2) et à l'organe mobile de sortie (3).Watchmaking device according to any one of claims 5 to 12, characterized in that the intermediate member (7; 7a) is guided in rotation coaxially with the movable input member (2) and the movable output member (3). Dispositif horloger selon l'une quelconque des revendications 1 à 13, caractérisé en ce qu'il comprend un organe d'affichage (17 ; 18) solidaire de l'organe mobile de sortie (3).Watchmaking device according to any one of claims 1 to 13, characterized in that it comprises a display member (17; 18) integral with the movable output member (3). Pièce d'horlogerie, par exemple montre, comprenant un dispositif horloger selon l'une quelconque des revendications 1 à 14.Timepiece, for example a watch, comprising a timepiece device according to any one of claims 1 to 14.
EP22212420.8A 2022-12-09 2022-12-09 Clock device for transforming a first movement into a second movement Pending EP4383014A1 (en)

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EP22212420.8A EP4383014A1 (en) 2022-12-09 2022-12-09 Clock device for transforming a first movement into a second movement

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH348362A (en) * 1959-02-21 1960-08-15 Gigandet Charles Jumping needle mechanism for timepiece
CH702137B1 (en) 2007-02-05 2011-05-13 Patek Philippe Sa Geneve Device for driving and setting an instantaneous counter and timepiece including such a device.
CH707183A2 (en) 2012-11-14 2014-05-15 Patek Philippe Sa Geneve Clockwork device for use in movement of e.g. wrist watch, has stop pin for blocking jumping wheel and releasing wheel at determined instant to allow pivoting element to be returned to initial position by return spring
CH707181A2 (en) 2012-11-14 2014-05-15 Patek Philippe Sa Geneve Clockwork device for use in clockwork movement of e.g. wristwatch, has control unit kinematically connected to jumping wheel and arranged to start action in minute jumping display mechanism at instants corresponding to jumps
CH707182A2 (en) 2012-11-14 2014-05-15 Patek Philippe Sa Geneve Clockwork device for use in movement of wrist watch, has cam controlling displacement jump at rockers to release minute wheel so as to return pivoting element into initial position, and pin and opening returning rockers into position
CH709375A1 (en) 2014-01-28 2015-08-28 Jérôme De Witt Device for jumping indication of a timepiece.

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH348362A (en) * 1959-02-21 1960-08-15 Gigandet Charles Jumping needle mechanism for timepiece
CH702137B1 (en) 2007-02-05 2011-05-13 Patek Philippe Sa Geneve Device for driving and setting an instantaneous counter and timepiece including such a device.
CH707183A2 (en) 2012-11-14 2014-05-15 Patek Philippe Sa Geneve Clockwork device for use in movement of e.g. wrist watch, has stop pin for blocking jumping wheel and releasing wheel at determined instant to allow pivoting element to be returned to initial position by return spring
CH707181A2 (en) 2012-11-14 2014-05-15 Patek Philippe Sa Geneve Clockwork device for use in clockwork movement of e.g. wristwatch, has control unit kinematically connected to jumping wheel and arranged to start action in minute jumping display mechanism at instants corresponding to jumps
CH707182A2 (en) 2012-11-14 2014-05-15 Patek Philippe Sa Geneve Clockwork device for use in movement of wrist watch, has cam controlling displacement jump at rockers to release minute wheel so as to return pivoting element into initial position, and pin and opening returning rockers into position
CH709375A1 (en) 2014-01-28 2015-08-28 Jérôme De Witt Device for jumping indication of a timepiece.

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