WO2019179824A1 - Chronograph for a timepiece - Google Patents

Chronograph for a timepiece Download PDF

Info

Publication number
WO2019179824A1
WO2019179824A1 PCT/EP2019/056129 EP2019056129W WO2019179824A1 WO 2019179824 A1 WO2019179824 A1 WO 2019179824A1 EP 2019056129 W EP2019056129 W EP 2019056129W WO 2019179824 A1 WO2019179824 A1 WO 2019179824A1
Authority
WO
WIPO (PCT)
Prior art keywords
clutch
wheel
chronograph
mobile
seconds
Prior art date
Application number
PCT/EP2019/056129
Other languages
French (fr)
Inventor
Christophe Lyner
Original Assignee
Hublot Sa, Genève
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 Hublot Sa, Genève filed Critical Hublot Sa, Genève
Priority to JP2020550662A priority Critical patent/JP7269949B2/en
Priority to CN201980019902.0A priority patent/CN112204476B/en
Priority to EP19712150.2A priority patent/EP3769164B1/en
Publication of WO2019179824A1 publication Critical patent/WO2019179824A1/en

Links

Classifications

    • G—PHYSICS
    • G04—HOROLOGY
    • G04F—TIME-INTERVAL MEASURING
    • G04F7/00—Apparatus for measuring unknown time intervals by non-electric means
    • G04F7/04—Apparatus for measuring unknown time intervals by non-electric means using a mechanical oscillator
    • G04F7/08—Watches or clocks with stop devices, e.g. chronograph
    • G04F7/0823—Watches or clocks with stop devices, e.g. chronograph with couplings between the chronograph mechanism and the base movement
    • G04F7/0838—Watches or clocks with stop devices, e.g. chronograph with couplings between the chronograph mechanism and the base movement involving a tilting movement
    • 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
    • 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
    • G04B35/00—Adjusting the gear train, e.g. the backlash of the arbors, depth of meshing of the gears

Definitions

  • the invention relates to a chronograph for a watch movement.
  • the invention also relates to a watch movement and a timepiece including such a chronograph. Finally, it relates to a clutch as such for a watch movement.
  • a timepiece chronograph typically includes a clutch to allow its operation and shutdown.
  • the operation of a chronograph hand results from a complex gear train including this clutch.
  • a first technical problem found in existing solutions is the bucking of such a chronograph hand, because of this complex cog.
  • a second technical problem noted in the existing solutions is the departure jump of a chronograph hand, which results from the implementation of the clutch, which is manifested by a sudden displacement of the chronograph hand at the start of the chronograph . This departure jump gives an impression of dysfunction of the chronograph to its user.
  • the object of the invention is to provide a chronograph remedying the problems mentioned above and improving the known solutions of the state of the art.
  • a first object of the invention is to provide a chronograph which minimizes, or even eliminates, any jerk of a chronograph hand.
  • a second object of the invention is to provide a chronograph which minimizes or even eliminates the starting jump of a chronograph hand.
  • the invention relates to a chronograph for a watch movement, characterized in that it comprises a chronograph axis capable of carrying a chronograph second hand on which is mounted a chronograph wheel and in that it comprises a mobile second clutch wheel comprising a lower second clutch wheel capable of meshing a seconds wheel driving a second watch movement mobile and a second seconds clutch wheel, this seconds clutch mobile which can occupy two positions by a rotation about an axis of oscillation, corresponding on the one hand to an engaged configuration of the chronograph in which the upper seconds clutch wheel of the seconds clutch mobile meshes the chronograph wheel and on the other hand to a disengaged configuration in which said upper second clutch wheel of the seconds clutch mobile no longer meshes with the chronograph wheel, and characterized in that e at least one of the two upper and lower second clutch wheels of the second clutch mobile is a game-catching wheel.
  • the second clutch mover may comprise a second clutch axis, on which are arranged the two upper and lower second clutch wheels, which is pivotable about an axis of oscillation perpendicular to the axis of the clutch.
  • second clutch positioned at its lower pivot, to enable it to occupy respectively its two configurations engaged and disengaged.
  • the upper second clutch wheel may be a game-catching wheel.
  • the two upper and lower second clutch wheels of the seconds clutch mobile can be wheels to catch up games.
  • the seconds clutch axis of the second clutch mobile can oscillate between two positions defined by two axes distributed on either side of a vertical axis.
  • the upper second clutch wheel can be positioned in the upper half of the height of the seconds clutch axis of the seconds clutch mobile or from the two-thirds inclusive of this height, this height being measured from its oscillation axis and / or the lower second clutch wheel can be positioned in the lower half of the height of the seconds clutch axis of the seconds clutch mobile, or in the included lower third of this height.
  • the upper second clutch wheel may include pennant-shaped teeth with a rounded end.
  • the lower second clutch wheel may comprise slotted teeth catching play.
  • the invention also relates to a watch movement, characterized in that it comprises a chronograph as described above.
  • the watch movement may comprise a seconds wheel comprising a driving second wheel which meshes permanently with the lower seconds clutch wheel of the chronograph second clutch wheel.
  • the invention also relates to a timepiece, including a wristwatch, characterized in that it comprises a chronograph as described above.
  • the invention also relates to a clutch for watch movement, which includes the features explained above.
  • Figure 1 is a schematic sectional view along a plane passing through an axis of a second clutch mobile of a chronograph in an engaged position according to one embodiment of the invention.
  • Figure 2 is a schematic sectional view of the chronograph in a disengaged position according to the embodiment of the invention.
  • Figure 3 shows a view of an upper second clutch wheel of a second clutch mobile according to the embodiment of the invention.
  • FIG. 4 shows a view of a second seconds clutch wheel of a seconds clutch mobile according to the embodiment of the invention.
  • the vertical direction as the direction of the axis of rotation of a needle a timepiece and a chronograph.
  • the horizontal direction is perpendicular to the vertical direction.
  • a chronograph according to an embodiment of the invention is partially illustrated in Figures 1 and 2.
  • This chronograph comprises a first member comprising a driving seconds wheel 1 secured to the mobile seconds.
  • the chronograph comprises a third member which comprises a chronograph wheel 31 intended to drive in rotational movement a chronograph axis 32 carrying a chronograph second hand, not shown.
  • the chronograph according to the embodiment further comprises a second intermediate member in the form of an oscillating seconds clutch mobile.
  • This seconds clutch mobile comprises a second clutch axis 22, which can be driven by a low amplitude rotation about a substantially horizontal axis positioned at its lower pivot 23, an axis perpendicular to the clutch. second clutch axis 22. Its upper pivot 24 can thus occupy two positions.
  • the second clutch axis 22 In a first position corresponding to the engaged configuration of the chronograph shown in FIG. 1, the second clutch axis 22 is inclined at a first side along a first axis Ci relative to a vertical axis C, and in a second axis corresponding to the disengaged configuration of the chronograph shown in FIG. 2, the second clutch axis 22 is inclined by a second opposite side along a second axis C2 with respect to the vertical axis C, its upper pivot 24 is finding discarded. Note, the lower pivot 23 of the second clutch axis 22 remains fixed.
  • the seconds clutch shaft 22 of the second clutch mobile carries two seconds clutch wheels and rotates continuously. Indeed, a lower second clutch wheel 21 meshes with Permanently the seconds wheel 1 which performs one revolution per minute around its axis B.
  • An upper seconds clutch wheel 25 is intended to cooperate with the chronograph wheel 31: in the engaged configuration of the chronograph, it meshes with the wheel of chronograph 31.
  • the oscillating seconds clutch mobile then causes the chronograph wheel 31 to rotate about its axis D.
  • the second clutch axis 22 In the disengaged configuration, the second clutch axis 22 is inclined in a direction that moves the wheel away from the wheel. upper seconds clutch 25 of the chronograph wheel 31, so that their respective teeth are no longer in mesh. In this disengaged configuration, the second clutch axis 22 no longer causes the chronograph wheel 31 to rotate and the chronograph second hand is not rotated.
  • the seconds clutch mobile thus fulfills the clutch function of the chronograph. It can be controlled during the various functions of the chronograph (start, stop for example) by rotating the clutch rocker seconds 4 around its axis A.
  • Figure 3 shows more particularly the upper seconds clutch wheel 25 of the seconds clutch mobile. It is positioned substantially at two thirds of the height of the second clutch axis 22, and more generally in the upper half of the height of the second clutch axis 22 and more precisely from the two-thirds included of this height, this height being measured from its lower axis of rotation.
  • this upper seconds clutch wheel 25 is a game-catching wheel. It comprises elastic flag-shaped teeth 26. Each elastic flag 26 is in the form of an elastic blade. extending rearward with respect to the direction of rotation of the wheel. Such a blade has a slight curvature, the center of curvature is positioned on the side of the wheel. Each flag further comprises a rounded end 27.
  • This rounded end is similar to a small sphere whose center is not in line with the flag 26, but positioned in front of this extension.
  • These elastic flag-shaped teeth 26 with rounded end 27 cooperate with conventional triangular teeth of the chronograph wheel 31.
  • This geometry of the teeth of the upper second clutch wheel 25 enables it to achieve a smooth clutch with the wheel chronograph, in addition to the oscillation movement or slight rotation of a few degrees of the second clutch axis 22 which is favorable to a smooth clutch.
  • Each end 27 comes to take position between two triangular teeth, its rounded shape allows it not to hit a tip of a tooth of the chronograph wheel but to insert sliding between two points of two teeth, in a continuous movement.
  • the elasticity of the flags makes it possible to engage the bottom of the toothing to eliminate any game of meshing and to absorb the concentricity defects of the mobiles.
  • Figure 4 shows more particularly the lower second clutch wheel 21 of the seconds clutch mobile. It is positioned substantially at one third of the height of the second clutch axis 22, or in the lower third of this height, and more generally in the lower half of the height of the second clutch axis 22. , this height being measured from its lower axis of rotation. This position close to the axis of rotation induces a low amplitude movement of this lower second clutch wheel 21, which is similar to a weak translation. Due to this slight translational movement during the oscillation of the mobile clutch second, the meshing between the second wheel 1, which is fixed, and the lower seconds clutch wheel 21 is undisturbed and the implementation of the clutch function does not induce or almost no starting jump of the chronograph hand, unlike what would occur with a horizontal clutch of the state of the art.
  • this lower second clutch wheel 21 is a clearance wheel. It comprises split teeth 28, formed of two elastic blades distributed on either side of an opening.
  • the two second clutch wheels 21, 25 could have other geometries, as long as they implement the catch-up function games.
  • the catching of the games can be implemented by elastic arms associated with the serge, the teeth can then take a conventional form.
  • the clutch can be made with only one of the two wheels comprising teeth with catch-up profiles, which would already improve the operation of the chronograph, particularly vis-à-vis the jump start .
  • the chronograph according to the embodiment is intended for a watch movement and a timepiece.
  • the timepiece is for example a watch, in particular a wristwatch.
  • the timepiece may include a mechanical watch movement. This watch movement is for example manual winding type or self-winding type.
  • the clutch mechanism has been described in the previous embodiment within a watch movement chronograph. Such a mechanism may, however, be implemented to form more generally a clutch between any two mobiles of a watch movement.
  • the invention also relates to a clutch for a watch movement, characterized in that it comprises a clutch mobile comprising a lower clutch wheel capable of meshing with a first driving wheel of a first mobile of a watch movement.
  • this clutch mobile can occupy two positions by a rotation about an axis of oscillation, corresponding on the one hand to an engaged configuration of the clutch in which the upper clutch wheel the clutch mobile is adapted to mesh a second wheel of a second mobile of a watch movement and secondly to a disengaged configuration in which said upper clutch wheel of the clutch mobile is no longer able to meshing the second wheel of the second mobile of a watch movement, and characterized in that at least one of the two upper and lower clutch wheels of the mobile clutch is a wheel to catch up games.
  • This clutch may comprise all or some of the features described above in connection with the seconds clutch mobile for a chronograph.

Abstract

The invention relates to a chronograph for a timepiece, characterised in that it comprises a chronograph axle (32) that can carry a chronograph sweep hand and on which a chronograph wheel (31) is mounted, and in that it comprises a seconds clutch moving part comprising a lower seconds clutch wheel (21) that can mesh with a driving seconds wheel (1) of a seconds moving part of a clockwork movement and an upper seconds clutch wheel (25), said seconds clutch moving part being able to occupy two positions by means of rotation about an oscillation axis, corresponding to an engaged configuration of the chronograph in which the upper seconds clutch wheel (25) of the seconds clutch moving part meshes with the chronograph wheel (31), and a disengaged configuration in which said upper seconds clutch wheel (25) of the seconds clutch moving part no longer meshes with the chronograph wheel (31), and characterised in that at least one of the two upper (25) and lower (21) seconds clutch wheels of the seconds clutch moving part is a play take-up wheel.

Description

Chronoqraphe pour pièce d’horlogerie  Chronoqraphe for timepiece
L’invention concerne un chronographe pour mouvement horloger. L’invention concerne encore un mouvement horloger et une pièce d’horlogerie comprenant un tel chronographe. Elle concerne enfin en embrayage en tant que tel pour mouvement horloger. The invention relates to a chronograph for a watch movement. The invention also relates to a watch movement and a timepiece including such a chronograph. Finally, it relates to a clutch as such for a watch movement.
Un chronographe de pièce d’horlogerie comprend généralement un embrayage pour permettre son fonctionnement et son arrêt. Le fonctionnement d’une aiguille de chronographe résulte d’un rouage complexe incluant cet embrayage. Un premier problème technique constaté dans les solutions existantes est le chevrotement d’une telle aiguille de chronographe, du fait de ce rouage complexe. Un deuxième problème technique constaté dans les solutions existantes est le saut de départ d’une aiguille de chronographe, qui résulte de la mise en œuvre de l’embrayage, qui se manifeste par un déplacement brutal de l’aiguille de chronographe au démarrage du chronographe. Ce saut de départ donne une impression de disfonctionnement du chronographe à son utilisateur. A timepiece chronograph typically includes a clutch to allow its operation and shutdown. The operation of a chronograph hand results from a complex gear train including this clutch. A first technical problem found in existing solutions is the bucking of such a chronograph hand, because of this complex cog. A second technical problem noted in the existing solutions is the departure jump of a chronograph hand, which results from the implementation of the clutch, which is manifested by a sudden displacement of the chronograph hand at the start of the chronograph . This departure jump gives an impression of dysfunction of the chronograph to its user.
Le but de l’invention est de proposer un chronographe remédiant aux problèmes évoqués ci-dessus et améliorant les solutions connues de l’état de la technique. The object of the invention is to provide a chronograph remedying the problems mentioned above and improving the known solutions of the state of the art.
Plus précisément, un premier objet de l’invention est de proposer un chronographe qui minimise, voire supprime, tout chevrotement d’une aiguille de chronographe. More specifically, a first object of the invention is to provide a chronograph which minimizes, or even eliminates, any jerk of a chronograph hand.
Un deuxième objet de l’invention est de proposer un chronographe qui minimise, voire supprime, le saut de départ d’une aiguille de chronographe. A cet effet, l’invention porte sur un chronographe pour mouvement horloger, caractérisé en ce qu’il comprend un axe de chronographe apte à porter une trotteuse de chronographe sur lequel est montée une roue de chronographe et en ce qu’il comprend un mobile d’embrayage de secondes comprenant une roue d’embrayage de secondes inférieure apte à engrener une roue de secondes menante d’un mobile de secondes d’un mouvement horloger et une roue d’embrayage de secondes supérieure, ce mobile d’embrayage de secondes pouvant occuper deux positions par une rotation autour d’un axe d’oscillation, correspondant d’une part à une configuration embrayée du chronographe dans laquelle la roue d’embrayage de secondes supérieure du mobile d’embrayage de secondes engrène la roue de chronographe et d’autre part à une configuration débrayée dans laquelle ladite roue d’embrayage de secondes supérieure du mobile d’embrayage de secondes n’engrène plus la roue de chronographe, et caractérisé en ce qu’au moins une des deux roues d’embrayage de secondes supérieure et inférieure du mobile d’embrayage de secondes est une roue à rattrapage des jeux. Le mobile d’embrayage de secondes peut comprendre un axe d’embrayage de secondes, sur lequel sont agencées les deux roues d’embrayage de secondes supérieure et inférieure, qui peut pivoter autour d’un axe d’oscillation perpendiculaire à l’axe d’embrayage de secondes positionné au niveau de son pivot inférieur, pour lui permettre d’occuper respectivement ses deux configurations embrayée et débrayée. A second object of the invention is to provide a chronograph which minimizes or even eliminates the starting jump of a chronograph hand. For this purpose, the invention relates to a chronograph for a watch movement, characterized in that it comprises a chronograph axis capable of carrying a chronograph second hand on which is mounted a chronograph wheel and in that it comprises a mobile second clutch wheel comprising a lower second clutch wheel capable of meshing a seconds wheel driving a second watch movement mobile and a second seconds clutch wheel, this seconds clutch mobile which can occupy two positions by a rotation about an axis of oscillation, corresponding on the one hand to an engaged configuration of the chronograph in which the upper seconds clutch wheel of the seconds clutch mobile meshes the chronograph wheel and on the other hand to a disengaged configuration in which said upper second clutch wheel of the seconds clutch mobile no longer meshes with the chronograph wheel, and characterized in that e at least one of the two upper and lower second clutch wheels of the second clutch mobile is a game-catching wheel. The second clutch mover may comprise a second clutch axis, on which are arranged the two upper and lower second clutch wheels, which is pivotable about an axis of oscillation perpendicular to the axis of the clutch. second clutch positioned at its lower pivot, to enable it to occupy respectively its two configurations engaged and disengaged.
La roue d’embrayage de secondes supérieure peut être une roue à rattrapage des jeux. Les deux roues d’embrayage de secondes supérieure et inférieure du mobile d’embrayage de secondes peuvent être des roues à rattrapage des jeux. The upper second clutch wheel may be a game-catching wheel. The two upper and lower second clutch wheels of the seconds clutch mobile can be wheels to catch up games.
L’axe d’embrayage de secondes du mobile d’embrayage de secondes peut osciller entre deux positions définies par deux axes répartis de part et d’autre d’un axe vertical. The seconds clutch axis of the second clutch mobile can oscillate between two positions defined by two axes distributed on either side of a vertical axis.
La roue d’embrayage de secondes supérieure peut être positionnée dans la moitié supérieure de la hauteur de l’axe d’embrayage de secondes du mobile d’embrayage de secondes ou à partir des deux tiers inclus de cette hauteur, cette hauteur étant mesurée depuis son axe d’oscillation et/ou la roue d’embrayage de secondes inférieure peut être positionnée dans la moitié inférieure de la hauteur de l’axe d’embrayage de secondes du mobile d’embrayage de secondes, ou dans le tiers inférieur inclus de cette hauteur. The upper second clutch wheel can be positioned in the upper half of the height of the seconds clutch axis of the seconds clutch mobile or from the two-thirds inclusive of this height, this height being measured from its oscillation axis and / or the lower second clutch wheel can be positioned in the lower half of the height of the seconds clutch axis of the seconds clutch mobile, or in the included lower third of this height.
La roue d’embrayage de secondes supérieure peut comprendre des dents en forme de fanion doté d’une extrémité arrondie. The upper second clutch wheel may include pennant-shaped teeth with a rounded end.
La roue d’embrayage de secondes inférieure peut comprendre des dents fendues à rattrapage de jeu. The lower second clutch wheel may comprise slotted teeth catching play.
L’invention porte aussi sur un mouvement horloger, caractérisé en ce qu’il comprend un chronographe tel que décrit précédemment. The invention also relates to a watch movement, characterized in that it comprises a chronograph as described above.
Le mouvement horloger peut comprendre un mobile des secondes comprenant une roue de secondes menante qui engrène en permanence avec la roue d’embrayage de secondes inférieure du mobile d’embrayage de secondes du chronographe. L’invention porte aussi sur une pièce d’horlogerie, notamment une montre bracelet, caractérisée en ce qu’elle comprend un chronographe tel que décrit précédemment. The watch movement may comprise a seconds wheel comprising a driving second wheel which meshes permanently with the lower seconds clutch wheel of the chronograph second clutch wheel. The invention also relates to a timepiece, including a wristwatch, characterized in that it comprises a chronograph as described above.
Plus généralement, l’invention porte aussi sur un embrayage pour mouvement horloger, qui comprend les caractéristiques explicitées précédemment. More generally, the invention also relates to a clutch for watch movement, which includes the features explained above.
Ces objets, caractéristiques et avantages de l’invention seront exposés en détail dans la description suivante d’un mode de réalisation particulier fait à titre non-limitatif en relation avec les figures jointes parmi lesquelles: These objects, features and advantages of the invention will be described in detail in the following description of a particular embodiment made in a non-limiting manner with reference to the appended figures among which:
La figure 1 est une vue schématique en coupe, selon un plan passant par un axe d’un mobile d’embrayage de secondes d’un chronographe dans une position embrayée selon un mode de réalisation de l’invention. Figure 1 is a schematic sectional view along a plane passing through an axis of a second clutch mobile of a chronograph in an engaged position according to one embodiment of the invention.
La figure 2 est une vue schématique en coupe du chronographe dans une position débrayée selon le mode de réalisation de l’invention. Figure 2 is a schematic sectional view of the chronograph in a disengaged position according to the embodiment of the invention.
La figure 3 représente une vue d’une roue d’embrayage de secondes supérieure d’un mobile d’embrayage de secondes selon le mode de réalisation de l’invention. Figure 3 shows a view of an upper second clutch wheel of a second clutch mobile according to the embodiment of the invention.
La figure 4 représente une vue d’une roue d’embrayage de secondes inférieure d’un mobile d’embrayage de secondes selon le mode de réalisation de l’invention. FIG. 4 shows a view of a second seconds clutch wheel of a seconds clutch mobile according to the embodiment of the invention.
Pour simplifier la description, nous choisissons par convention la direction verticale comme la direction de l’axe de rotation d’une aiguille d’une pièce d’horlogerie et d’un chronographe. La direction horizontale est donc perpendiculaire à la direction verticale. To simplify the description, we choose by convention the vertical direction as the direction of the axis of rotation of a needle a timepiece and a chronograph. The horizontal direction is perpendicular to the vertical direction.
Un chronographe selon un mode de réalisation de l’invention est illustré partiellement sur les figures 1 et 2. Ce chronographe comprend un premier organe comprenant une roue de secondes menante 1 solidaire du mobile des secondes. Le chronographe comprend un troisième organe qui comprend une roue de chronographe 31 destinée à entraîner en mouvement de rotation un axe de chronographe 32 portant une trotteuse de chronographe, non représentée. A chronograph according to an embodiment of the invention is partially illustrated in Figures 1 and 2. This chronograph comprises a first member comprising a driving seconds wheel 1 secured to the mobile seconds. The chronograph comprises a third member which comprises a chronograph wheel 31 intended to drive in rotational movement a chronograph axis 32 carrying a chronograph second hand, not shown.
Le chronographe selon le mode de réalisation comprend de plus un deuxième organe intermédiaire sous la forme d’un mobile d’embrayage de secondes oscillant. Ce mobile d’embrayage de secondes comprend un axe d’embrayage de secondes 22, qui peut être animé d’une rotation de faible amplitude autour d’un axe sensiblement horizontal positionné au niveau de son pivot inférieur 23, soit un axe perpendiculaire à l’axe d’embrayage de secondes 22. Son pivot supérieur 24 peut ainsi occuper deux positions. Dans une première position correspondant à la configuration embrayée du chronographe représentée par la figure 1 , l’axe d’embrayage de secondes 22 est incliné d’un premier côté selon un premier axe Ci par rapport à un axe vertical C, et dans une deuxième position correspondant à la configuration débrayée du chronographe représentée par la figure 2, l’axe d’embrayage de secondes 22 est incliné d’un deuxième côté opposé selon un deuxième axe C2 par rapport à l’axe vertical C, son pivot supérieur 24 se trouvant écarté. En remarque, le pivot inférieur 23 de l’axe d’embrayage de secondes 22 reste fixe. The chronograph according to the embodiment further comprises a second intermediate member in the form of an oscillating seconds clutch mobile. This seconds clutch mobile comprises a second clutch axis 22, which can be driven by a low amplitude rotation about a substantially horizontal axis positioned at its lower pivot 23, an axis perpendicular to the clutch. second clutch axis 22. Its upper pivot 24 can thus occupy two positions. In a first position corresponding to the engaged configuration of the chronograph shown in FIG. 1, the second clutch axis 22 is inclined at a first side along a first axis Ci relative to a vertical axis C, and in a second axis corresponding to the disengaged configuration of the chronograph shown in FIG. 2, the second clutch axis 22 is inclined by a second opposite side along a second axis C2 with respect to the vertical axis C, its upper pivot 24 is finding discarded. Note, the lower pivot 23 of the second clutch axis 22 remains fixed.
L’axe d’embrayage de secondes 22 du mobile d’embrayage de secondes porte deux roues d’embrayage de secondes et tourne en permanence. En effet, une roue d’embrayage de secondes inférieure 21 engrène en permanence la roue de secondes 1 qui effectue un tour par minute autour de son axe B. Une roue d’embrayage de secondes supérieure 25 est destinée à coopérer avec la roue de chronographe 31 : dans la configuration embrayée du chronographe, elle engrène la roue de chronographe 31. Le mobile d’embrayage de secondes oscillant entraîne alors la roue de chronographe 31 en rotation autour de son axe D. Dans la configuration débrayée, l’axe d’embrayage de secondes 22 est incliné dans une direction qui éloigne la roue d’embrayage de secondes supérieure 25 de la roue de chronographe 31 , de sorte que leurs dents respectives ne sont plus engrenées. Dans cette configuration débrayée, l’axe d’embrayage de secondes 22 n’entraîne plus la roue de chronographe 31 en rotation et la trotteuse de chronographe n’est pas mise en rotation. The seconds clutch shaft 22 of the second clutch mobile carries two seconds clutch wheels and rotates continuously. Indeed, a lower second clutch wheel 21 meshes with Permanently the seconds wheel 1 which performs one revolution per minute around its axis B. An upper seconds clutch wheel 25 is intended to cooperate with the chronograph wheel 31: in the engaged configuration of the chronograph, it meshes with the wheel of chronograph 31. The oscillating seconds clutch mobile then causes the chronograph wheel 31 to rotate about its axis D. In the disengaged configuration, the second clutch axis 22 is inclined in a direction that moves the wheel away from the wheel. upper seconds clutch 25 of the chronograph wheel 31, so that their respective teeth are no longer in mesh. In this disengaged configuration, the second clutch axis 22 no longer causes the chronograph wheel 31 to rotate and the chronograph second hand is not rotated.
Le mobile d’embrayage de secondes remplit donc la fonction d’embrayage du chronographe. Il pourra être commandé lors des différentes fonctions du chronographe (départ, arrêt par exemple) par rotation de la bascule d’embrayage de secondes 4 autour de son axe A. The seconds clutch mobile thus fulfills the clutch function of the chronograph. It can be controlled during the various functions of the chronograph (start, stop for example) by rotating the clutch rocker seconds 4 around its axis A.
La figure 3 représente plus particulièrement la roue d’embrayage de secondes supérieure 25 du mobile d’embrayage de secondes. Elle est positionnée sensiblement aux deux tiers de la hauteur de l’axe d’embrayage de secondes 22, et plus généralement dans la moitié supérieure de la hauteur de l’axe d’embrayage de secondes 22 et plus précisément à partir des deux tiers inclus de cette hauteur, cette hauteur étant mesurée depuis son axe de rotation inférieur. Selon le mode de réalisation, cette roue d’embrayage de secondes supérieure 25 est une roue à rattrapage de jeu. Elle comprend des dents en forme de fanions élastiques 26. Chaque fanion élastique 26 se présente sous la forme d’une lame élastique s’étendant vers l’arrière par rapport au sens de rotation de la roue. Une telle lame présente une légère courbure, dont le centre de courbure est positionné du côté de la roue. Chaque fanion comprend de plus une extrémité arrondie 27. Cette extrémité arrondie s’apparente à une petite sphère dont le centre n’est pas dans le prolongement du fanion 26, mais positionné en avant de ce prolongement. Ces dents en forme de fanions élastiques 26 avec extrémité arrondie 27 coopèrent avec des dents triangulaires conventionnelles de la roue de chronographe 31. Cette géométrie des dents de la roue d’embrayage de secondes supérieure 25 lui permet de réaliser un embrayage sans heurt avec la roue de chronographe, en complément du mouvement d’oscillation ou légère rotation de quelques degrés de l’axe d’embrayage de secondes 22 qui est favorable à un embrayage en douceur. Chaque extrémité 27 vient prendre position entre deux dents triangulaires, sa forme arrondie lui permet de ne pas heurter une pointe d’une dent de la roue de chronographe mais de s’insérer en glissant entre deux pointes de deux dents, dans un mouvement continu. L’élasticité des fanions permet d’embrayer en fond de denture pour supprimer tout jeu d’engrènement et d’absorber les défauts de concentricité des mobiles. D’autre part, il est important de prévoir un nombre de dents important sur la roue de chronographe, par exemple supérieur ou égal à 180. Figure 3 shows more particularly the upper seconds clutch wheel 25 of the seconds clutch mobile. It is positioned substantially at two thirds of the height of the second clutch axis 22, and more generally in the upper half of the height of the second clutch axis 22 and more precisely from the two-thirds included of this height, this height being measured from its lower axis of rotation. According to the embodiment, this upper seconds clutch wheel 25 is a game-catching wheel. It comprises elastic flag-shaped teeth 26. Each elastic flag 26 is in the form of an elastic blade. extending rearward with respect to the direction of rotation of the wheel. Such a blade has a slight curvature, the center of curvature is positioned on the side of the wheel. Each flag further comprises a rounded end 27. This rounded end is similar to a small sphere whose center is not in line with the flag 26, but positioned in front of this extension. These elastic flag-shaped teeth 26 with rounded end 27 cooperate with conventional triangular teeth of the chronograph wheel 31. This geometry of the teeth of the upper second clutch wheel 25 enables it to achieve a smooth clutch with the wheel chronograph, in addition to the oscillation movement or slight rotation of a few degrees of the second clutch axis 22 which is favorable to a smooth clutch. Each end 27 comes to take position between two triangular teeth, its rounded shape allows it not to hit a tip of a tooth of the chronograph wheel but to insert sliding between two points of two teeth, in a continuous movement. The elasticity of the flags makes it possible to engage the bottom of the toothing to eliminate any game of meshing and to absorb the concentricity defects of the mobiles. On the other hand, it is important to provide a large number of teeth on the chronograph wheel, for example greater than or equal to 180.
La figure 4 représente plus particulièrement la roue d’embrayage de secondes inférieure 21 du mobile d’embrayage de secondes. Elle est positionnée sensiblement au tiers de la hauteur de l’axe d’embrayage de secondes 22, ou dans le tiers inférieur inclus de cette hauteur, et plus généralement dans la moitié inférieure de la hauteur de l’axe d’embrayage de secondes 22, cette hauteur étant mesurée depuis son axe de rotation inférieur. Cette position proche de l’axe de rotation induit un mouvement de faible amplitude de cette roue d’embrayage de secondes inférieure 21 , qui s’apparente à une faible translation. Du fait de ce faible mouvement de translation lors de l’oscillation du mobile d’embrayage de secondes, l’engrènement entre la roue de seconde 1 , qui est fixe, et la roue d’embrayage de secondes inférieure 21 est peu perturbé et la mise en oeuvre de la fonction d’embrayage n’induit pas ou presque pas de saut de départ de l’aiguille de chronographe, au contraire de ce qui se produirait avec un embrayage horizontal de l’état de la technique. De plus, le fait de très peu modifier l’engrènement entre la roue de seconde 1 et la roue d’embrayage de secondes inférieure 21 lors de l’embrayage rend la solution compatible avec l’utilisation de profils de denture à rattrapage de jeu, ce qui est favorable à la réduction, voire la suppression, de tout chevrotement de l’aiguille de chronographe. Ainsi, selon le mode de réalisation, cette roue d’embrayage de secondes inférieure 21 est une roue à rattrapage de jeu. Elle comprend des dents fendues 28, formées de deux lames élastiques réparties de part et d’autre d’une ouverture. En remarque, dans le cas d’un embrayage qui induirait un déplacement plus important de la roue d’embrayage de secondes inférieure 21 relativement à la roue de seconde 1 , comme dans un embrayage horizontal de l’état de la technique, le fait d’utiliser une roue à rattrapage de jeu amplifierait le défaut de saut de départ. Figure 4 shows more particularly the lower second clutch wheel 21 of the seconds clutch mobile. It is positioned substantially at one third of the height of the second clutch axis 22, or in the lower third of this height, and more generally in the lower half of the height of the second clutch axis 22. , this height being measured from its lower axis of rotation. This position close to the axis of rotation induces a low amplitude movement of this lower second clutch wheel 21, which is similar to a weak translation. Due to this slight translational movement during the oscillation of the mobile clutch second, the meshing between the second wheel 1, which is fixed, and the lower seconds clutch wheel 21 is undisturbed and the implementation of the clutch function does not induce or almost no starting jump of the chronograph hand, unlike what would occur with a horizontal clutch of the state of the art. In addition, the fact of very little change in the meshing between the second wheel 1 and the lower second clutch wheel 21 during the clutch makes the solution compatible with the use of teeth gears recoil profiles, which is favorable to the reduction, or even the suppression, of any kinking of the chronograph hand. Thus, according to the embodiment, this lower second clutch wheel 21 is a clearance wheel. It comprises split teeth 28, formed of two elastic blades distributed on either side of an opening. As a remark, in the case of a clutch which would induce a greater displacement of the lower second clutch wheel 21 relative to the second wheel 1, as in a horizontal clutch of the state of the art, the fact of using a game-catching wheel would boost the starting jump fault.
Il apparaît ainsi que le fait d’utiliser un mobile d’embrayage de secondes, remplissant la fonction d’embrayage par une faible rotation ou oscillation autour d’un axe, combinée à l’utilisation de roue(s) à rattrapage de jeux, permet de fortement réduire, voire même supprimer, à la fois tout chevrotement et tout saut de départ. It thus appears that the fact of using a second clutch mobile, fulfilling the clutch function by a small rotation or oscillation about an axis, combined with the use of wheel (s) catch-up games, allows to greatly reduce, or even eliminate, both any jump and jump starting.
Naturellement, l’invention ne se limite pas au mode de réalisation décrit. Notamment, les deux roues d’embrayage de secondes 21 , 25 pourraient présenter d’autres géométries, du moment qu’elles mettent en oeuvre la fonction de rattrapage des jeux. Par exemple, le rattrapage des jeux peut être mis en oeuvre par des bras élastiques associés à la serge, les dents pouvant alors prendre une forme conventionnelle. Selon un autre mode de réalisation non représenté, l’embrayage peut être réalisé avec une seule des deux roues comprenant des dents à profils à rattrapage de jeu, ce qui améliorerait déjà le fonctionnement du chronographe, particulièrement vis-à-vis du saut de départ. Naturally, the invention is not limited to the embodiment described. In particular, the two second clutch wheels 21, 25 could have other geometries, as long as they implement the catch-up function games. For example, the catching of the games can be implemented by elastic arms associated with the serge, the teeth can then take a conventional form. According to another embodiment not shown, the clutch can be made with only one of the two wheels comprising teeth with catch-up profiles, which would already improve the operation of the chronograph, particularly vis-à-vis the jump start .
Le chronographe selon le mode de réalisation est destiné à un mouvement horloger et à une pièce d’horlogerie. La pièce d’horlogerie est par exemple une montre, en particulier une montre bracelet. La pièce d’horlogerie peut comprendre un mouvement horloger mécanique. Ce mouvement horloger est par exemple du type à remontage manuel ou du type à remontage automatique. The chronograph according to the embodiment is intended for a watch movement and a timepiece. The timepiece is for example a watch, in particular a wristwatch. The timepiece may include a mechanical watch movement. This watch movement is for example manual winding type or self-winding type.
Le mécanisme d’embrayage a été décrit dans le mode de réalisation précédent au sein d’un chronographe de mouvement horloger. Un tel mécanisme peut toutefois être implémenté pour former plus généralement un embrayage entre deux mobiles quelconques d’un mouvement horloger. Ainsi, l’invention porte aussi sur un embrayage pour mouvement horloger, caractérisé en ce qu’il comprend un mobile d’embrayage comprenant une roue d’embrayage inférieure apte à engrener une première roue menante d’un premier mobile d’un mouvement horloger et une roue d’embrayage supérieure, ce mobile d’embrayage pouvant occuper deux positions par une rotation autour d’un axe d’oscillation, correspondant d’une part à une configuration embrayée de l’embrayage dans laquelle la roue d’embrayage supérieure du mobile d’embrayage est apte à engrener une deuxième roue d’un deuxième mobile d’un mouvement horloger et d’autre part à une configuration débrayée dans laquelle ladite roue d’embrayage supérieure du mobile d’embrayage n’est plus apte à engrener la deuxième roue du deuxième mobile d’un mouvement horloger, et caractérisé en ce qu’au moins une des deux roues d’embrayage supérieure et inférieure du mobile d’embrayage est une roue à rattrapage des jeux. Cet embrayage peut comprendre tout ou partie des caractéristiques décrites précédemment en rapport avec le mobile d’embrayage de secondes pour un chronographe. The clutch mechanism has been described in the previous embodiment within a watch movement chronograph. Such a mechanism may, however, be implemented to form more generally a clutch between any two mobiles of a watch movement. Thus, the invention also relates to a clutch for a watch movement, characterized in that it comprises a clutch mobile comprising a lower clutch wheel capable of meshing with a first driving wheel of a first mobile of a watch movement. and an upper clutch wheel, this clutch mobile can occupy two positions by a rotation about an axis of oscillation, corresponding on the one hand to an engaged configuration of the clutch in which the upper clutch wheel the clutch mobile is adapted to mesh a second wheel of a second mobile of a watch movement and secondly to a disengaged configuration in which said upper clutch wheel of the clutch mobile is no longer able to meshing the second wheel of the second mobile of a watch movement, and characterized in that at least one of the two upper and lower clutch wheels of the mobile clutch is a wheel to catch up games. This clutch may comprise all or some of the features described above in connection with the seconds clutch mobile for a chronograph.

Claims

Revendications claims
1. Chronographe pour mouvement horloger, caractérisé en ce qu’il comprend un axe de chronographe (32) apte à porter une trotteuse de chronographe sur lequel est montée une roue de chronographe1. Chronograph for a watch movement, characterized in that it comprises a chronograph pin (32) capable of carrying a chronograph second hand on which is mounted a chronograph wheel
(31 ) et en ce qu’il comprend un mobile d’embrayage de secondes comprenant une roue d’embrayage de secondes inférieure (21 ) apte à engrener une roue de secondes menante (1 ) d’un mobile de secondes d’un mouvement horloger et une roue d’embrayage de secondes supérieure (25), ce mobile d’embrayage de secondes pouvant occuper deux positions par une rotation autour d’un axe d’oscillation, correspondant d’une part à une configuration embrayée du chronographe dans laquelle la roue d’embrayage de secondes supérieure (25) du mobile d’embrayage de secondes engrène la roue de chronographe (31 ) et d’autre part à une configuration débrayée dans laquelle ladite roue d’embrayage de secondes supérieure (25) du mobile d’embrayage de secondes n’engrène plus la roue de chronographe (31 ), caractérisé en ce qu’au moins une des deux roues d’embrayage de secondes supérieure (25) et inférieure (21 ) du mobile d’embrayage de secondes est une roue à rattrapage des jeux, et caractérisé en ce que le mobile d’embrayage de secondes comprend un axe d’embrayage de secondes (22), sur lequel sont agencées les deux roues d’embrayage de secondes supérieure (25) et inférieure (21 ), qui peut pivoter autour d’un axe d’oscillation perpendiculaire à l’axe d’embrayage de secondes (22) positionné au niveau de son pivot inférieur (23), pour lui permettre d’occuper respectivement ses deux configurations embrayée et débrayée. (31) and in that it comprises a seconds clutch mobile comprising a lower second clutch wheel (21) adapted to mesh a driving seconds wheel (1) of a mobile of seconds of a movement watchmaker and an upper second clutch wheel (25), this second clutch mobile can occupy two positions by a rotation about an axis of oscillation, corresponding on the one hand to an engaged configuration of the chronograph in which the upper second clutch wheel (25) of the second clutch mobile engages the chronograph wheel (31) and the other a disengaged configuration in which said upper second clutch wheel (25) of the mobile second clutch wheel no longer meshes with the chronograph wheel (31), characterized in that at least one of the two upper (25) and lower (21) second clutch wheels of the second clutch mobile is a wheel to catch up games, and characterized in the second clutch gear comprises a second clutch shaft (22), on which are arranged the two upper (25) and lower (21) second clutch wheels, which are pivotable about a second clutch axle (22); oscillation axis perpendicular to the second clutch axis (22) positioned at its lower pivot (23), to enable it to occupy respectively its two configurations engaged and disengaged.
2. Chronographe (1 ) selon la revendication précédente, caractérisé en ce que la roue d’embrayage de secondes supérieure (25) est une roue à rattrapage des jeux. 3. Chronographe (1 ) selon l’une des revendications précédentes, caractérisé en ce que les deux roues d’embrayage de secondes supérieure (25) et inférieure (21 ) du mobile d’embrayage de secondes sont des roues à rattrapage des jeux. 4. Chronographe (1 ) selon l’une des revendications précédentes, caractérisé en ce que l’axe d’embrayage de secondes (22) du mobile d’embrayage de secondes oscille entre deux positions définies par deux axes (Ci ; C2) répartis de part et d’autre d’un axe vertical (C). 2. Chronograph (1) according to the preceding claim, characterized in that the upper second clutch wheel (25) is a wheel to catch games. 3. Chronograph (1) according to one of the preceding claims, characterized in that the two upper clutch wheels (25) and lower (21) of the second clutch mobile wheels are catch-up games. 4. Chronograph (1) according to one of the preceding claims, characterized in that the second clutch axis (22) of the seconds clutch mobile oscillates between two positions defined by two axes (Ci; C2) distributed on both sides of a vertical axis (C).
5. Chronographe (1 ) selon l’une des revendications précédentes, caractérisé en ce que la roue d’embrayage de secondes supérieure (25) est positionnée dans la moitié supérieure de la hauteur de l’axe d’embrayage de secondes (22) du mobile d’embrayage de secondes ou à partir des deux tiers inclus de cette hauteur, cette hauteur étant mesurée depuis son axe d’oscillation et/ou en ce que la roue d’embrayage de secondes inférieure (21 ) est positionnée dans la moitié inférieure de la hauteur de l’axe d’embrayage de secondes (22) du mobile d’embrayage de secondes, ou dans le tiers inférieur inclus de cette hauteur. Chronograph (1) according to one of the preceding claims, characterized in that the upper second clutch wheel (25) is positioned in the upper half of the height of the second clutch axis (22). of the clutch mobile of seconds or from two thirds inclusive of this height, this height being measured from its axis of oscillation and / or in that the lower seconds clutch wheel (21) is positioned in the half lower the height of the seconds clutch shaft (22) of the second clutch mobile, or in the lower third inclusive of this height.
6. Chronographe (1 ) selon l’une des revendications précédentes, caractérisé en ce que la roue d’embrayage de secondes supérieure (25) comprend des dents en forme de fanion (26) doté d’une extrémité (27) arrondie. 6. Chronograph (1) according to one of the preceding claims, characterized in that the upper seconds clutch wheel (25) comprises flag-shaped teeth (26) having a rounded end (27).
7. Chronographe (1 ) selon l’une des revendications précédentes, caractérisé en ce que la roue d’embrayage de secondes inférieure (21 ) comprend des dents fendues (28) à rattrapage de jeu. 8. Mouvement horloger, caractérisé en ce qu’il comprend un chronographe selon l’une des revendications précédentes. 7. Chronograph (1) according to one of the preceding claims, characterized in that the lower second clutch wheel (21) comprises slit teeth (28) catch-up play. 8. Watch movement, characterized in that it comprises a chronograph according to one of the preceding claims.
9. Mouvement horloger selon la revendication précédente, caractérisé en ce qu’il comprend un mobile des secondes comprenant une roue de secondes menante (1 ) qui engrène en permanence avec la roue d’embrayage de secondes inférieure (21 ) du mobile d’embrayage de secondes du chronographe. 9. Watch movement according to the preceding claim, characterized in that it comprises a seconds mobile comprising a driving seconds wheel (1) which meshes permanently with the lower seconds clutch wheel (21) of the clutch mobile seconds of the chronograph.
10. Pièce d’horlogerie, notamment montre bracelet, caractérisée en ce qu’elle comprend un chronographe selon l’une des revendications 1 à 7. 10. Timepiece, in particular wristwatch, characterized in that it comprises a chronograph according to one of claims 1 to 7.
1 1 . Embrayage pour mouvement horloger, caractérisé en ce qu’il comprend un mobile d’embrayage comprenant une roue d’embrayage inférieure apte à engrener une première roue menante d’un premier mobile d’un mouvement horloger et une roue d’embrayage supérieure, ce mobile d’embrayage pouvant occuper deux positions par une rotation autour d’un axe d’oscillation, correspondant d’une part à une configuration embrayée de l’embrayage dans laquelle la roue d’embrayage supérieure du mobile d’embrayage est apte à engrener une deuxième roue d’un deuxième mobile d’un mouvement horloger et d’autre part à une configuration débrayée dans laquelle ladite roue d’embrayage supérieure du mobile d’embrayage n’est plus apte à engrener la deuxième roue du deuxième mobile d’un mouvement horloger, et caractérisé en ce qu’au moins une des deux roues d’embrayage supérieure et inférieure du mobile d’embrayage est une roue à rattrapage des jeux. 1 1. Clutch for watch movement, characterized in that it comprises a clutch mobile comprising a lower clutch wheel capable of meshing with a first driving wheel of a first mobile of a watch movement and an upper clutch wheel, this movable clutch can occupy two positions by a rotation about an axis of oscillation, corresponding on the one hand to an engaged configuration of the clutch in which the upper clutch wheel of the clutch mobile is adapted to mesh a second wheel of a second mobile of a watch movement and secondly a disengaged configuration in which said upper clutch wheel of the clutch mobile is no longer able to mesh the second wheel of the second mobile of a watch movement, and characterized in that at least one of the two clutch wheels upper and lower of the clutch mobile is a wheel to catch games.
PCT/EP2019/056129 2018-03-19 2019-03-12 Chronograph for a timepiece WO2019179824A1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP2020550662A JP7269949B2 (en) 2018-03-19 2019-03-12 watch chronograph
CN201980019902.0A CN112204476B (en) 2018-03-19 2019-03-12 Timepiece for a timepiece
EP19712150.2A EP3769164B1 (en) 2018-03-19 2019-03-12 Chronograph for a timepiece

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH00347/18A CH714798B1 (en) 2018-03-19 2018-03-19 Chronograph mechanism for a timepiece.
CH00347/18 2018-03-19

Publications (1)

Publication Number Publication Date
WO2019179824A1 true WO2019179824A1 (en) 2019-09-26

Family

ID=61971874

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2019/056129 WO2019179824A1 (en) 2018-03-19 2019-03-12 Chronograph for a timepiece

Country Status (5)

Country Link
EP (1) EP3769164B1 (en)
JP (1) JP7269949B2 (en)
CN (1) CN112204476B (en)
CH (1) CH714798B1 (en)
WO (1) WO2019179824A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4092491A1 (en) * 2021-05-19 2022-11-23 Patek Philippe SA Genève Timepiece movement with clutch

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1288743A1 (en) * 2001-08-30 2003-03-05 Isa Swiss SA Clutching device for timepiece
EP2112567A1 (en) * 2008-04-21 2009-10-28 Rolex Sa Gear with backlash compensation for a timepiece mechanism
EP3032358A1 (en) * 2014-12-12 2016-06-15 Richemont International S.A. Chronograph mechanism for a clock movement

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH288211A (en) * 1950-12-15 1953-01-15 Le Coultre & Cie Chronograph watch movement.
JP2001349966A (en) * 2001-04-09 2001-12-21 Seiko Epson Corp Pointer type portable watch
EP1316863A1 (en) * 2001-11-09 2003-06-04 Manufacture Roger Dubuis S.A. Shaped watch-movement with chronograph
EP1445669A1 (en) * 2003-02-10 2004-08-11 Richemont International S.A. Constant force escapement mechanism for a timepiece with indirect seconds
EP1555584A1 (en) * 2004-01-13 2005-07-20 Rolex S.A. Toothed wheel for the removal of play, gear, and the use of this gear
CH708339B1 (en) * 2013-07-04 2018-01-31 Mft La Joux-Perret Sa Timepiece comprising a second dead mechanism and a chronograph mechanism integrated into a basic movement.
CH709162B1 (en) * 2014-01-20 2017-11-30 De Bethune Sa Clutch device for watch movement.
EP2945029B1 (en) * 2014-05-15 2017-05-31 Patek Philippe SA Genève Chronograph locking device (Device for a clock piece)
EP3264199A1 (en) * 2016-07-01 2018-01-03 Montres Breguet S.A. Timepiece comprising a switching device of a clockwork mechanism

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1288743A1 (en) * 2001-08-30 2003-03-05 Isa Swiss SA Clutching device for timepiece
EP2112567A1 (en) * 2008-04-21 2009-10-28 Rolex Sa Gear with backlash compensation for a timepiece mechanism
EP3032358A1 (en) * 2014-12-12 2016-06-15 Richemont International S.A. Chronograph mechanism for a clock movement

Also Published As

Publication number Publication date
JP2021518538A (en) 2021-08-02
CN112204476B (en) 2022-09-27
EP3769164A1 (en) 2021-01-27
CN112204476A (en) 2021-01-08
JP7269949B2 (en) 2023-05-09
CH714798B1 (en) 2022-03-31
CH714798A1 (en) 2019-09-30
EP3769164B1 (en) 2023-10-25

Similar Documents

Publication Publication Date Title
EP2115536B1 (en) Watch movement
EP2062102B1 (en) Timepiece movement for driving a display element along a complex path and timepiece comprising such a movement
EP3026504B1 (en) Annual or perpetual calendar mechanism and timepiece comprising the use thereof
EP3029530B1 (en) Tourbillon mechanism
CH708390B1 (en) Escapement comprising an anchor, timepiece movement and timepiece comprising such an escapement.
EP2397921A1 (en) Mechanism for a jumping tourbillon cage
EP3070537A1 (en) Time base comprising an escapement with direct pulse and constant force
EP3769164A1 (en) Chronograph for a timepiece
CH711594B1 (en) Anchor, regulator escapement, tourbillon, movement, and timepiece.
EP3382468B1 (en) Movement with extension of running reserve
EP3671363B1 (en) Clockwork and timepiece comprising such a clockwork
CH705086B1 (en) Calendar mechanism and timepiece including such mechanism.
CH697781B1 (en) timepiece provided with a tourbillon.
CH715052A2 (en) Constant torque mechanism, timepiece movement, and timepiece.
EP3026505A1 (en) Annual or perpetual calendar mechanism and timepiece comprising the use thereof
EP3779606B1 (en) Self-winding watch
WO2013104941A1 (en) Timepiece with automatic winding
EP2735920B1 (en) Timepiece movement provided with a rotary, hollow, three-dimensional element
CH680034B5 (en)
CH714795A1 (en) Timepiece comprising a mechanism for correcting indications provided by a first and second display member.
EP3627232B1 (en) Self-winding watch movement with time display hands located on the rotor side
CH707439B1 (en) Anti-retrograde display mechanism for a timepiece.
EP2264550A1 (en) Wheel for a reverser device, method for manufacturing such a wheel and reverser devices for a timepiece movement comprising such a wheel
CH713966B1 (en) Oscillating winding weight for timepiece with automatic movement and timepiece fitted with such a winding weight.
CH710487B1 (en) Tourbillon mechanism for watch movement.

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 19712150

Country of ref document: EP

Kind code of ref document: A1

ENP Entry into the national phase

Ref document number: 2020550662

Country of ref document: JP

Kind code of ref document: A

NENP Non-entry into the national phase

Ref country code: DE

ENP Entry into the national phase

Ref document number: 2019712150

Country of ref document: EP

Effective date: 20201019