WO2024121789A1 - Timepiece device for transforming a first rotation into a second rotation - Google Patents

Timepiece device for transforming a first rotation into a second rotation Download PDF

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Publication number
WO2024121789A1
WO2024121789A1 PCT/IB2023/062352 IB2023062352W WO2024121789A1 WO 2024121789 A1 WO2024121789 A1 WO 2024121789A1 IB 2023062352 W IB2023062352 W IB 2023062352W WO 2024121789 A1 WO2024121789 A1 WO 2024121789A1
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WO
WIPO (PCT)
Prior art keywords
rotating
cam follower
watchmaking
rotation
rotating output
Prior art date
Application number
PCT/IB2023/062352
Other languages
French (fr)
Inventor
Mathieu MARANGÉ
Original Assignee
Patek Philippe Sa Geneve
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Filing date
Publication date
Application filed by Patek Philippe Sa Geneve filed Critical Patek Philippe Sa Geneve
Publication of WO2024121789A1 publication Critical patent/WO2024121789A1/en

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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
    • 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

  • Watchmaking device for transforming a first rotation into a second rotation
  • the present invention relates to a watchmaking device for transforming a first rotation into a second rotation.
  • the second rotation is for example 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.
  • 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 patent application CH 709375 comprises a continuously driven second wheel and a pawl holder coaxial with this second wheel.
  • a ratchet is articulated around a pin.
  • the pawl holder is connected to the seconds wheel by a spiral spring.
  • the ratchet includes a nose engaged in internal teeth of a fixed crown.
  • the ratchet 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 provide a watchmaking device for transforming a first rotation into a second rotation which is relatively space-saving, at least in height.
  • a watch device according to claim 1 is proposed, particular embodiments being defined in the dependent claims.
  • the present invention also proposes a timepiece, for example a watch, more particularly a wristwatch, comprising such a timepiece device.
  • FIG. 1 to 7 show in plan view from above a watchmaking device for transforming a first, continuous rotation into a second rotation, at least partly jerky, according to respectively the first to seventh embodiments of the invention
  • FIG. 8 shows in plan view from above a watchmaking device for transforming a first, continuous rotation into a second rotation, continuous but at variable speed, according to an eighth embodiment of the invention
  • FIG. 9 partially shows, in plan view from above, a watchmaking device for transforming a first rotation into a second rotation according to a ninth embodiment of the 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.
  • FIG. 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.
  • the input rotating member 2, the output rotating 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 1a 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 in Figure 2) which is guided in rotation around the axis A by the shaft on which the rotary input member 2 is mounted.
  • the The rotating output member 3 comprises ears 10 capable of receiving pins glued, welded or otherwise fixed 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 rotating output member 3 by its second meshing tooth 13.
  • the rotating output member s and the display disk thus move in jumps, which makes it possible, for example, to display digitally the current time, the units and tens of the current minutes (see the display of the units of the minutes by the disk 17 in Figure 2), a timed time, a countdown, the date, the day, the week , the power reserve, or other.
  • This device 1a is compact in height thanks to its planar structure, in particular thanks to the coplanar arrangement of the rotating output member 3 and the lever 6.
  • the pivot point P of the lever 6 moves relative to the crown 4, to the rotating 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 pivot point 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 offers great freedom as to the movement that we wish to produce at the output.
  • a purely jerky rotation jumps only
  • partially jerky combination, for example alternation, of continuous rotations and jumps
  • Device 1a can be considered as a differential in which one of the two inputs controls the other to allow 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.
  • FIG. 2 A second embodiment of the watchmaking device according to the invention is illustrated in Figure 2 and designated by the 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 hand 18, for example a dead seconds hand, integral with the the rotating output member 3 and guided in rotation around the axis A by the shaft of the rotating input member 2.
  • the watch device 1d comprises two levers 6a, 6b controlled by the rotating input member 2 and the rotating output member 3 is in two parts 3a, 3b secured by the display disc 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 in rotation 7a, 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 not more 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 organ 7 comprises a guide arm 22 which fits a curved portion 23 of the lever 6 concentric with the pivot point P of the lever 6 relative to the intermediate member 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.
  • the lever 6 therefore rotates around a pivot point which is fixed during the sliding of the nozzle 16 on the stopping flank 15 of an internal tooth of the crown 4.
  • the rotating output member 3 is driven by the lever 6 via the flexible guide 8.
  • a 1 h watch device differs from the 1 f watch device according to the sixth embodiment in that the cam surface with which the beak 16 cooperates is constituted by a sliding surface 26 coplanar with the monolithic part 3, 6, 7, 8, 9 and whose distance from 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.
  • characteristic (ii) is that, in this ninth embodiment, the The display member (disc or needle for example) integral with the rotating output member 3 is guided in rotation by the second flexible guide 9 which connects the rotating output member 3 to the intermediate member 7, and no longer directly by the shaft of the rotating input member 2.
  • the rotary input member 2 could be a wheel or pinion meshing with a drive cog, located under the lever 6 and cooperating with the latter by a pin and oblong hole system;
  • 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 display member could not be integral with the rotating output member 3 but be for example driven directly or indirectly by a wheel secured to the rotating output member 3;
  • 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.

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  • General Physics & Mathematics (AREA)
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Abstract

The invention relates to a timepiece device comprising an input rotary member (2), an output rotary member (3), a fixed or movable cam surface (15), an elastic member (8, 9) and a cam follower (6) arranged to be controlled by the input rotary member (2) and to engage with the cam surface (15) under the action of the elastic member (8) in order to drive the output rotary member (3), the output rotary member (3) and the cam follower (6) being surrounded by the cam surface (15). The output rotary member (3) and the cam follower (6) are coplanar.

Description

Dispositif horloger de transformation d’une première rotation en une deuxième rotation Watchmaking device for transforming a first rotation into a second rotation
La présente invention concerne un dispositif horloger de transformation d’une première rotation en une deuxième rotation. La deuxième rotation est par exemple 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 rotation into a second rotation. The second rotation is for example 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 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 advances a jumping wheel one step each time 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 patents CH 707181, CH 707182 and CH 707183 of the present applicant and in 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 patent application CH 709375 comprises a continuously driven second wheel and a pawl holder coaxial with this second 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 includes 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’une première rotation en une deuxième rotation qui soit relativement peu encombrant, au moins en hauteur. The present invention aims to provide a watchmaking device for transforming a first rotation into a second rotation which is relatively space-saving, at least in 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. La présente invention propose également une pièce d’horlogerie, par exemple une montre, plus particulièrement une montre-bracelet, comprenant un tel dispositif horloger. To this end, a watch device according to claim 1 is proposed, particular embodiments being defined in the dependent claims. 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 : Other characteristics and advantages of the present invention will appear on reading the following detailed description made with reference to the appended drawings in which:
- les figures 1 à 7 montrent en vue plane de dessus un dispositif horloger de transformation d’une première rotation, continue, en une deuxième rotation, au moins en partie saccadée, selon respectivement des premier à septième modes de réalisation de l’invention ; - Figures 1 to 7 show in plan view from above a watchmaking device for transforming a first, continuous rotation into a second rotation, at least partly jerky, according to respectively the first to seventh embodiments of the invention;
- la figure 8 montre en vue plane de dessus un dispositif horloger de transformation d’une première rotation, continue, en une deuxième rotation, continue mais à vitesse variable, selon un huitième mode de réalisation de l’invention ; - Figure 8 shows in plan view from above a watchmaking device for transforming a first, continuous rotation into a second rotation, continuous but at variable speed, according to an eighth embodiment of the invention;
- la figure 9 montre partiellement, en vue plane de dessus, un dispositif horloger de transformation d’une première rotation en une deuxième rotation selon un neuvième mode de réalisation de l’invention. - Figure 9 partially shows, in plan view from above, a watchmaking device for transforming a first rotation into a second rotation according to a ninth embodiment of the invention.
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. In 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 1a et la couronne 4 constituant la périphérie du dispositif 1a. The input rotating member 2, the output rotating 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 1a 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 in Figure 2) which is guided in rotation around the axis A by the shaft on which the rotary input member 2 is mounted. For its assembly with the display disk, the The rotating output member 3 comprises ears 10 capable of receiving pins glued, welded or otherwise fixed 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 rotatif de sortie 3 par sa deuxième dent d’engrènement 13. L’organe rotatif de sortie s 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 rotating output member 3 by its second meshing tooth 13. The rotating output member s and the display disk thus move in jumps, which makes it possible, for example, to display digitally the current time, the units and tens of the current minutes (see the display of the units of the minutes by the disk 17 in Figure 2), a timed time, a countdown, the date, the day, the week , the power reserve, or other.
Ce dispositif 1a est peu encombrant en hauteur grâce à sa structure plane, en particulier grâce à l’agencement coplanaire de l’organe rotatif de sortie 3 et du levier 6. 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 in height thanks to its planar structure, in particular thanks to the coplanar arrangement of the rotating output member 3 and the lever 6. In addition, the monolithic nature of the lever 6 - intermediate member assembly 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.
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 rotatif 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 rotating 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 pivot point 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 rotatif 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 rotating output member 3 therefore immobilizes the rotating output member 3 between two jumps and allows the driving of the member rotary 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.
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). We can thus display information instantly, as described above, or semi- dragging. 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 allow 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 the 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. 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 third embodiment of the watch device according to the invention, shown in Figure 3 and designated by the reference 1c, the display disc 17 is replaced by a hand 18, for example a dead seconds hand, integral with the the rotating output member 3 and guided in rotation around the axis A by the shaft of the rotating input member 2. According to a fourth embodiment, shown in Figure 4, the watch device 1d comprises two levers 6a, 6b controlled by the rotating input member 2 and the rotating output member 3 is in two parts 3a, 3b secured by the display disc 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 in rotation 7a, 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 not more 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 organ 7 comprises a guide arm 22 which fits a curved portion 23 of the lever 6 concentric with the pivot point P of the lever 6 relative to the intermediate member 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 l’organe intermédiaire 7 et l’engrènement entre le levier 6 et l’organe rotatif de sortie 3 sont supprimés, le levier 6 étant relié par le guidage flexible 8 directement à l’organe rotatif de sortie 3. Le levier 6 tourne donc autour d’un point de pivotement qui est fixe pendant le glissement du bec 16 sur le flanc d’arrêt 15 d’une dent intérieure de la couronne 4. Lors du saut du levier 6 entre deux flancs d’arrêt 15, l’organe rotatif de sortie 3 est entraîné par le levier 6 via le guidage flexible 8. Un dispositif horloger 1 h selon un huitième mode de réalisation de l’invention, illustré à la figure 8, 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 coplanaire avec la pièce monolithique 3, 6, 7, 8, 9 et 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 watchmaking device 1g 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 intermediate member 7 and the meshing between the lever 6 and the The rotating output member 3 are eliminated, the lever 6 being connected by the flexible guide 8 directly to the rotating output member 3. The lever 6 therefore rotates around a pivot point which is fixed during the sliding of the nozzle 16 on the stopping flank 15 of an internal tooth of the crown 4. When the lever 6 jumps between two stopping flanks 15, the rotating output member 3 is driven by the lever 6 via the flexible guide 8. A 1 h watch device according to an eighth embodiment of the invention, illustrated in Figure 8, differs from the 1 f watch device according to the sixth embodiment in that the cam surface with which the beak 16 cooperates is constituted by a sliding surface 26 coplanar with the monolithic part 3, 6, 7, 8, 9 and whose distance from 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.
Un dispositif horloger 1 i selon un neuvième mode de réalisation de l’invention, illustré partiellement à la figure 9, diffère du dispositif horloger 1a selon le premier mode de réalisation, du dispositif horloger 1b selon le deuxième mode de réalisation ou du dispositif horloger 1c selon le troisième mode de réalisation essentiellement en ce que (i) le premier guidage flexible 8 qui relie le levier 6 à l’organe intermédiaire 7 est de type RCC (pour garantir la position du point de pivotement du levier 6 par rapport à l’organe intermédiaire 7) et (ii) l’organe intermédiaire 7 est guidé en rotation par l’arbre de l’organe rotatif d’entrée 2. Une conséquence de la caractéristique (ii) est que, dans ce neuvième mode de réalisation, l’organe d’affichage (disque ou aiguille par exemple) solidaire de l’organe rotatif de sortie 3 est guidé en rotation par le deuxième guidage flexible 9 qui relie l’organe rotatif de sortie 3 à l’organe intermédiaire 7, et non plus directement par l’arbre de l’organe rotatif d’entrée 2. A watch device 1 i according to a ninth embodiment of the invention, partially illustrated in Figure 9, differs from the watch device 1a according to the first embodiment, from the watch device 1b according to the second embodiment or from the watch device 1c according to the third embodiment essentially in that (i) the first flexible guide 8 which connects the lever 6 to the intermediate member 7 is of the RCC type (to guarantee the position of the pivot point of the lever 6 relative to the intermediate member 7) and (ii) the intermediate member 7 is guided in rotation by the shaft of the rotary input member 2. A consequence of characteristic (ii) is that, in this ninth embodiment, the The display member (disc or needle for example) integral with the rotating output member 3 is guided in rotation by the second flexible guide 9 which connects the rotating output member 3 to the intermediate member 7, and no longer directly by the shaft of the rotating input member 2.
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 : 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 :
- l’organe rotatif d’entrée 2 pourrait être une roue ou pignon engrenant avec un rouage d’entraînement, située sous le levier 6 et coopérant avec ce dernier par un système à goupille et trou oblong ; - the rotary input member 2 could be a wheel or pinion meshing with a drive cog, located under the lever 6 and cooperating with the latter by a pin and oblong hole system;
- au lieu d’être une simple lame élastique ou deux lames élastiques RCC, 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 ; - instead of being a simple elastic blade or two RCC elastic blades, 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;
- 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 ; - 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;
- 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 ; - 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;
- l’organe intermédiaire 7 pourrait être guidé en rotation non coaxialement à l’organe rotatif d’entrée 2 ou même être guidé en translation ; - the intermediate member 7 could be guided in rotation not coaxially with the rotating input member 2 or even be guided in translation;
- l’organe d’affichage pourrait ne pas être solidaire de l’organe rotatif de sortie 3 mais être par exemple entraîné directement ou indirectement par une roue solidaire de l’organe rotatif de sortie 3 ; - the display member could not be integral with the rotating output member 3 but be for example driven directly or indirectly by a wheel secured to the rotating output member 3;
- 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 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

REVENDICATIONS Dispositif horloger (1 a-1 h) comprenant CLAIMS Watchmaking device (1 a-1 h) including
- un organe rotatif d’entrée (2), - a rotating input member (2),
- un organe rotatif de sortie (3 ; 3a), - a rotating output member (3; 3a),
- une surface de came (15 ; 26) fixe ou mobile, - a fixed or movable cam surface (15; 26),
- un organe élastique (8, 9 ; 8a ; 9a), et - an elastic organ (8, 9; 8a; 9a), and
- un suiveur de came (6 ; 6a) agencé pour être commandé par l’organe rotatif d’entrée (2) et pour coopérer avec la surface de came (15 ; 26) sous l’action de l’organe élastique (8, 9 ; 8a ; 9a) pour entraîner l’organe rotatif de sortie (3 ; 3a), l’organe rotatif de sortie (3 ; 3a) et le suiveur de came (6 ; 6a) étant entourés par la surface de came (15 ; 26), caractérisé en ce que l’organe rotatif de sortie (3 ; 3a) et le suiveur de came (6 ; 6a) sont coplanaires. Dispositif horloger selon la revendication 1 , caractérisé en ce que l’organe rotatif d’entrée (2) est coplanaire avec l’organe rotatif de sortie (3 ; 3a) et le suiveur de came (6 ; 6a). Dispositif horloger selon la revendication 1 ou 2, caractérisé en ce que le suiveur de came (6 ; 6a) est relié à l’organe rotatif de sortie (3 ; 3a) par l’intermédiaire d’au moins un guidage flexible (8, 9 ; 8a, 9a) constituant l’organe élastique (8 ; 8a). Dispositif horloger selon l’une quelconque des revendications 1 à 3, caractérisé en ce que le suiveur de came (6 ; 6a) et l’organe rotatif de sortie (3 ; 3a) font partie d’une même pièce monolithique. Dispositif horloger selon l’une quelconque des revendications 1 à 4, caractérisé en ce qu’il comprend en outre un organe intermédiaire (7 ; 7a) coplanaire avec l’organe rotatif de sortie (3 ; 3a) et le suiveur de came (6 ;- a cam follower (6; 6a) arranged to be controlled by the rotary input member (2) and to cooperate with the cam surface (15; 26) under the action of the elastic member (8, 9; 8a; 9a) to drive the output rotating member (3; 3a), the output rotating member (3; 3a) and the cam follower (6; 6a) being surrounded by the cam surface (15). ; 26), characterized in that the rotating output member (3; 3a) and the cam follower (6; 6a) are coplanar. Watchmaking device according to claim 1, characterized in that the rotating input member (2) is coplanar with the rotating output member (3; 3a) and the cam follower (6; 6a). Watchmaking device according to claim 1 or 2, characterized in that the cam follower (6; 6a) is connected to the rotating output member (3; 3a) via at least one flexible guide (8, 9; 8a, 9a) constituting the elastic member (8; 8a). Watchmaking device according to any one of claims 1 to 3, characterized in that the cam follower (6; 6a) and the rotating output member (3; 3a) form part of the same monolithic part. Watchmaking device according to any one of claims 1 to 4, characterized in that it further comprises an intermediate member (7; 7a) coplanar with the rotating output member (3; 3a) and the cam follower (6 ;
6a) et mobile par rapport à l’organe rotatif d’entrée (2), à l’organe rotatif de sortie (3 ; 3a) et à la surface de came (15 ; 26), et en ce que le suiveur de came (6 ; 6a) est articulé à cet organe intermédiaire (7 ; 7a), cette articulation définissant un point de pivotement (P) mobile du suiveur de came (6 ; 6a) dans le dispositif horloger (1a-1 h). Dispositif horloger selon la revendication 5, 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). Dispositif horloger selon la revendication 6, caractérisé en ce que le premier guidage flexible (8 ; 8a) est une simple lame élastique ou un guidage flexible du type à centre de rotation déporté. Dispositif horloger selon l’une quelconque des revendications 5 à 7, caractérisé en ce que l’organe intermédiaire (7) est guidé par un deuxième guidage flexible (9 ; 9a, 9b). Dispositif horloger selon la revendication 8, caractérisé en ce que le deuxième guidage flexible (9) est du type à centre de rotation déporté. Dispositif horloger selon l’une quelconque des revendications 5 à 9, caractérisé en ce que l’organe intermédiaire (7) est guidé en rotation coaxialement à l’organe rotatif d’entrée (2) et à l’organe rotatif de sortie (3 ; 3a). Dispositif horloger selon l’une quelconque des revendications 5 à 10, caractérisé en ce que le suiveur de came (6 ; 6a), l’organe intermédiaire (7 ; 7a) et l’organe rotatif de sortie (3 ; 3a) font partie d’une même pièce monolithique. Dispositif horloger selon l’une quelconque des revendications 5 à 11 , caractérisé en ce que le suiveur de came (6 ; 6a) coopère par engrènement avec l’organe rotatif de sortie (3 ; 3a). Dispositif horloger selon l’une quelconque des revendications 1 à 12, caractérisé en ce que le suiveur de came (6 ; 6a) coopère par engrènement avec l’organe rotatif d’entrée (2). Dispositif horloger selon les revendications 5, 12 et 13, 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 rotatif de sortie (3 ; 3a), et en ce que l’engrènement du suiveur de came (6 ; 6a) avec l’organe rotatif d’entrée (2) et avec l’organe rotatif de sortie (3 ; 3a) est tel que, entre deux sauts du suiveur de came (6 ; 6a), ce dernier maintient l’organe rotatif de sortie (3 ; 3a) immobile. Dispositif horloger selon l’une quelconque des revendications 1 à 14, caractérisé en ce qu’il comprend un organe d’affichage (17 ; 18) solidaire de l’organe rotatif de sortie (3) ou agencé pour être entraîné par l’organe rotatif de sortie (3). Pièce d’horlogerie, par exemple montre, comprenant un dispositif horloger selon l’une quelconque des revendications 1 à 15. 6a) and movable relative to the input rotating member (2), the output rotating member (3; 3a) and the cam surface (15; 26), and in that the cam follower (6; 6a) is articulated to this intermediate member (7; 7a), this articulation defining a movable pivot point (P) of the cam follower (6; 6a) in the watchmaking device (1a-1 h). Watchmaking device according to claim 5, characterized in that the cam follower (6; 6a) is articulated to the intermediate member (7; 7a) by a first flexible guide (8; 8a). Watchmaking device according to claim 6, characterized in that the first flexible guide (8; 8a) is a simple elastic blade or a flexible guide of the type with an offset center of rotation. Watchmaking device according to any one of claims 5 to 7, characterized in that the intermediate member (7) is guided by a second flexible guide (9; 9a, 9b). Watchmaking device according to claim 8, characterized in that the second flexible guide (9) is of the type with an offset center of rotation. Watchmaking device according to any one of Claims 5 to 9, characterized in that the intermediate member (7) is guided in rotation coaxially with the rotating input member (2) and the rotating output member (3). 3a). Watchmaking device according to any one of claims 5 to 10, characterized in that the cam follower (6; 6a), the intermediate member (7; 7a) and the rotating output member (3; 3a) form part of the same monolithic part. Watchmaking device according to any one of claims 5 to 11, characterized in that the cam follower (6; 6a) cooperates by meshing with the rotating output member (3; 3a). Watchmaking device according to any one of claims 1 to 12, characterized in that the cam follower (6; 6a) cooperates by meshing with the rotary input member (2). Watchmaking device according to claims 5, 12 and 13, characterized in that the cam surface (15) comprises stopping flanks of a toothing (5) on each of which a nose (16) of the cam follower ( 6; 6a) before jumping to the next stopping edge to cause the rotating output member (3; 3a) to jump, and in that the cam follower (6; 6a) meshes with the The rotating input member (2) and with the rotating output member (3; 3a) is such that, between two jumps of the cam follower (6; 6a), the latter maintains the rotating output member (3 ; 3a) motionless. Watchmaking device according to any one of claims 1 to 14, characterized in that it comprises a display member (17; 18) integral with the rotating output member (3) or arranged to be driven by the member rotary output (3). Timepiece, for example a watch, comprising a watchmaking device according to any one of claims 1 to 15.
PCT/IB2023/062352 2022-12-09 2023-12-07 Timepiece device for transforming a first rotation into a second rotation WO2024121789A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP22212415.8A EP4383013A1 (en) 2022-12-09 2022-12-09 Clock device for transforming a first rotation into a second rotation
EP22212415.8 2022-12-09

Publications (1)

Publication Number Publication Date
WO2024121789A1 true WO2024121789A1 (en) 2024-06-13

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Application Number Title Priority Date Filing Date
PCT/IB2023/062352 WO2024121789A1 (en) 2022-12-09 2023-12-07 Timepiece device for transforming a first rotation into a second rotation

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Country Link
EP (1) EP4383013A1 (en)
WO (1) WO2024121789A1 (en)

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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