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EP3644129A1 - Flexible guide member - Google Patents

Flexible guide member Download PDF

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Publication number
EP3644129A1
EP3644129A1 EP18202244.2A EP18202244A EP3644129A1 EP 3644129 A1 EP3644129 A1 EP 3644129A1 EP 18202244 A EP18202244 A EP 18202244A EP 3644129 A1 EP3644129 A1 EP 3644129A1
Authority
EP
European Patent Office
Prior art keywords
flexible guide
guide member
neck
axis
rotation
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
EP18202244.2A
Other languages
German (de)
French (fr)
Inventor
Frédéric Maier
James Hide
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Patek Philippe SA Geneve
Original Assignee
Patek Philippe SA Geneve
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Patek Philippe SA Geneve filed Critical Patek Philippe SA Geneve
Priority to EP18202244.2A priority Critical patent/EP3644129A1/en
Publication of EP3644129A1 publication Critical patent/EP3644129A1/en
Pending legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G04—HOROLOGY
    • G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
    • G04B21/00—Indicating the time by acoustic means
    • G04B21/02—Regular striking mechanisms giving the full hour, half hour or quarter hour
    • G04B21/06—Details of striking mechanisms, e.g. hammer, fan governor
    • 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
    • G04B15/00—Escapements
    • G04B15/06—Free escapements
    • 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
    • G04B15/00—Escapements
    • G04B15/06—Free escapements
    • G04B15/08—Lever escapements
    • 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
    • G04B17/00—Mechanisms for stabilising frequency
    • G04B17/04—Oscillators acting by spring tension
    • G04B17/045—Oscillators acting by spring tension with oscillating blade springs

Definitions

  • the present invention relates to a flexible guide member, a device comprising a component, typically a watchmaker, at least one such flexible guide member and a support, and a timepiece comprising such a device.
  • the flexible guide members are designed to pivot without a physical axis of rotation, therefore without friction, around a virtual axis of rotation, thanks to an arrangement of elastic parts.
  • Flexible guide members of the circular neck type are generally used in flexible guide systems, when the stiffness of the system must be low. These are typically beams of rectangular section and of variable thickness, the profile of which describes two concave semicircles. Such components have the advantage of having a low stiffness and of limiting the moments of elastic return, however, they have the disadvantage of not absorbing parasitic displacements.
  • FIGS. 12a and 12b represent, respectively in perspective and top view, a flexible guide member 101 of the type with circular necks according to the prior art.
  • the flexible guide member 101 extends longitudinally along an axis x. It generally has the shape of a rectangular parallelepiped of length L extending in the direction of the axis x, of width l extending in the direction of an axis y and of thickness e extending in the direction of a z axis
  • the flexible guide member 101 comprises two recesses 105a, 105b produced respectively in planar opposite surfaces F1, F2 of the flexible guide member 101, said recesses 105a, 105b facing each other so as to define between them a thinned area or neck 104 at which the width of the flexible guide member 101 is thinned over its entire thickness.
  • This neck 104 has a certain elasticity resulting from its width l neck , relatively thin.
  • the flexible guide member 101 comprises a first 102 and a second 103 rigid parts connected by said neck 104 elastically deformable so that said first 102 and second 103 rigid parts are able to pivot relative to each other around 'a virtual axis of rotation R, perpendicular to the x axis , parallel to the surfaces F1 and F2 and crossing the neck 104.
  • the recesses 105a, 105b typically take the form of half-cylinders of revolution with axes parallel to the axis z.
  • the profile of each of said recesses 105a, 105b is an arc of radius r.
  • the neck 104 in particular its width l neck , is dimensioned according to the stresses that it can bear.
  • the radius r is typically at least greater than five times the minimum width l neck , so as to avoid any concentration of stresses in the middle of the neck 104.
  • the flexible guide member 101 has a plane P 0 of vertical longitudinal symmetry including the virtual axis of rotation R and parallel to the surfaces F1 and F2.
  • any relative movement of the first part 102 with respect to the second part 103 other than a rotational movement around the virtual axis of rotation R is considered to be a parasitic movement, the parasitic movements typically including movements of torsion, stretching or transverse bending as well as shear stresses.
  • manufacture of such a flexible guide member 101 of the circular neck type is traditionally carried out by carrying out two separate machining operations, one to form each of the recesses 105a, 105b, for example from a block of material or substrate. in the shape of a rectangular parallelepiped.
  • machining faults can cause rotation of the virtual axis of rotation R in any direction, which results in the creation of a parasitic displacement.
  • a machining defect of the neck of 2 ° (typical value of the machining defect) generates a parasitic displacement of approximately 3% at the level of the guide member.
  • parasitic displacement may have no influence when considered alone.
  • the parasitic displacements can be in opposition and cause blockages or strong stiffness increases.
  • An object of the present invention is to provide a flexible guide member making it possible to overcome, at least in part, the aforementioned drawbacks.
  • the invention provides a flexible guide member extending longitudinally along an axis x and comprising first and second rigid parts connected by an elastically deformable neck, said first and second rigid parts being able to pivot one by relative to each other around a virtual axis of rotation perpendicular to the x axis by elastic deformation of said neck, said flexible guide member being characterized in that said neck is defined by a single hollow.
  • the neck is defined by a concave curve corresponding to a longitudinal section of said hollow and by a line segment located opposite this curve.
  • the profile of said recess is the same in all the cutting planes of said flexible guide member perpendicular to the virtual axis of rotation R.
  • said hollow crosses the entire thickness of the flexible guide member.
  • the flexible guide member according to the invention can be made of silicon (optionally oxidized), metal, plastic, ceramic, sapphire (aluminum oxide), beryllium or polymer.
  • the invention also provides a device comprising a component, in particular a watchmaking component, at least one flexible guide member according to the invention and a support, said at least one flexible guide member being able to guide the movements of said component relative to said support.
  • Said component can typically be a timepiece component, for example chosen from an escape anchor, a rocker, a pawl, a jumper, an oscillator and a clockwork hammer or only part of such a timepiece component.
  • clockwork hammer typically means a hammer such as a chronograph or striking hammer.
  • the device comprises at least two flexible guide members according to the invention arranged in series. These two bodies can be oriented in the same direction or be turned upside down.
  • the device according to the invention is monolithic.
  • the device according to the invention comprises at least two assemblies each comprising two flexible guide members according to the invention arranged in series, said assemblies being arranged in parallel.
  • Such a device typically allows the guiding of said component relative to the support essentially in translation.
  • the invention also provides a timepiece such as a wristwatch, a pocket watch, a pendulum or a pendulum comprising such a device.
  • flexible guide members “arranged in series” designates an arrangement in which the flexible guide members are mounted one after the other so that the second rigid part of one corresponds to the first rigid part of the other.
  • the neck of the flexible guide member according to the invention is only defined by a single hollow.
  • the machining of a single recess is sufficient to manufacture such a flexible guide member which halves the risk of machining defect compared to a flexible guide member according to the prior art with two necks. This is of great interest, in particular in cases where several guide members have to work together, typically when at least two flexible guide members work together, for example, when they are arranged in series.
  • the configuration of the flexible guide member according to the invention involves decentering the virtual axis of rotation relative to the flexible guide member.
  • the inventors have found that centering the virtual axis of rotation on the flexible guide member is not necessary even in cases where several guide members have to work together. In this case, what is important is that the different virtual rotation axes are parallel to each other.
  • a flexible guide member 1 generally has the shape of a rectangular parallelepiped of length L extending in the direction of an axis x, of width l extending in the direction of an axis y and of thickness e extending in the direction of an axis z.
  • the flexible guide member 1 comprises a first 2 and a second 3 rigid parts connected by a neck 4, corresponding to a thinned area of the flexible guide member 1, elastically deformable, said first 2 and second 3 rigid parts being suitable to pivot relative to each other about a virtual axis of rotation 100 by elastic deformation of said neck 4, said axis 100 being perpendicular to the x axis .
  • the flexible guide member 1 comprises six surfaces: F1, F2, F3, F4, F5 and F6, the surface F6 defining the top of the flexible guide member 1.
  • the surface F1 is planar and parallel to the x axis . It comprises a first surface F 1-2 of the first rigid part 2 and a first surface F 1-3 of the second rigid part 3.
  • the surface F2 is located opposite the surface F1. It typically extends in a plane parallel to that defined by the surface F1. As illustrated in figure 1a , the surface F2 comprises a second surface F 2-2 of the first rigid part 2 and a second surface F 2-3 of the second rigid part 3.
  • the faces F 2-2 and F 2-3 are plane and parallel to the flat surface F1.
  • the surface F2 also includes a recess 5. This recess 5 and a portion 6 of the surface F1 located opposite said recess 5 define between them the neck 4 at which the width " l " of the flexible guide member 1 is thinned , up to a minimum value " l col ", over its entire thickness e, as illustrated in Figures 1a and 1b .
  • This neck 4 has a certain elasticity resulting from the fineness of its minimum width l neck .
  • the width l neck is calculated so that the maximum stress exerted by the relative movements of the first 2 and second 3 parts relative to each other on said neck 4 is less than the elastic limit of the material constituting this neck 4.
  • the profile of said recess 5 is the same in all the planes of section of the flexible guide member 1 perpendicular to the virtual axis of rotation 100.
  • the hollow 5 of the flexible guide member 1 has the shape of a half-cylinder of revolution with an axis parallel to the virtual axis of rotation 100, of radius r and height e corresponding to the thickness e previously defined. .
  • the neck 4 is therefore defined, on the one hand by a concave semicircle of radius r and on the other hand by a line segment corresponding to the portion 6 of the flat surface F1.
  • the flexible guide member 1 is in particular such that in each of its cutting planes perpendicular to the virtual axis of rotation 100, the neck 4 is defined by this semicircle of radius r concave corresponding to a longitudinal section of said hollow 5 and by a line segment located opposite this curve.
  • the recess 5 and the neck 4 of the flexible guide member 1 typically comprise a plane (P) of symmetry (transverse), this plane being defined as the plane including the virtual axis of rotation 100 and being perpendicular to the first surface F1.
  • the guide member 1 according to the invention does not include a plane of vertical longitudinal symmetry such as the plane P 0 illustrated in Figures 12a and 12b , which would include the virtual axis of rotation 100 and which would be parallel to the surface F1.
  • the surfaces F3 and F4 of the flexible guide member 1 are typically planar, mutually parallel and perpendicular to the surfaces F1 and F2 as well as to the x axis and the surfaces F5 and F6 are typically planar, mutually parallel and perpendicular to surfaces F1, F2, F3 and F4.
  • a first step a) consists of providing a block of material 10 or substrate 10 whose shape is typically that shown in the figure 2 .
  • This particular substrate 10 has the shape of a rectangular parallelepiped of length L , of width l and of thickness e corresponding to the length L , width l and thickness e of the flexible guide member 1 to be produced.
  • a hollow 5 in the form of a half-cylinder of revolution with an axis parallel to the axis 100 extending over the entire width l of the substrate 10, is typically machined from the surface F2 of the substrate 10 to obtain the flexible guide member 1.
  • Such machining can typically be carried out by chip removal, but other techniques such as chemical etching or deep reactive ion etching (DRIE) are possible.
  • DRIE deep reactive ion etching
  • a flexible guide member according to the invention can also be obtained without a machining step, for example by galvanic growth, injection, molding, or forging.
  • the device 20 illustrated in figure 3 comprises a part of an escape anchor, namely a body 22 of an escape anchor, a flexible guide member 1 and a support 21 of said escape anchor.
  • the first rigid part 2 of the flexible guide member 1 is integral with the support 21 itself fixed on a frame 200 such as a plate, a bridge or a tourbillon cage for example using a screw 23; and the second rigid part 3 is integral with said body 22.
  • the flexible guide member 1 makes it possible to guide the body 22 in rotation relative to the support 21 around the axis 100.
  • the guiding in rotation of the body 22 of the exhaust anchor relative to the support 21 is typically done on angles of rotation of between 5 ° and 40 °.
  • the support 21, the flexible guide member 1 and the body 22 of the escape anchor could form a monolithic assembly.
  • the device 30 illustrated in figure 4 comprises a movable frame of an escape anchor, four flexible guide members 41, 42, 51, 52 such as the flexible guide member 1, and a support 36 of said escape anchor.
  • the movable frame 31 cooperates on the one hand with an escapement wheel 32 of a clockwork mechanism and on the other hand with the plate pin 33 of a balance plate 34.
  • the mobile frame 31 is designed to perform movements in translation in both directions indicated by arrow 35.
  • the movable frame 31 is guided in translation by a translational guide device comprising first 40 and second 50 identical assemblies, arranged in parallel and connecting the movable frame 31 to a fixed support 36 on a frame 300 such as a turntable, a bridge or a tourbillon cage, for example using screws 37.
  • a translational guide device comprising first 40 and second 50 identical assemblies, arranged in parallel and connecting the movable frame 31 to a fixed support 36 on a frame 300 such as a turntable, a bridge or a tourbillon cage, for example using screws 37.
  • first 51 and second 52 flexible guide members are mounted one after the other so that the second rigid part 53 of said first flexible guide member 51 corresponds to the first rigid part 53 of said second flexible guide member 52, it is said that they are mounted “in series”.
  • the second rigid part 43 of said first flexible guide member 41 of the first set 40 is also the first rigid part of the second flexible guide member 42 of the first set 40.
  • the first 40 and second 50 sets are arranged in parallel.
  • the movable frame 31 is integral with both the first rigid part 44 of the first flexible guide member 41 of the first assembly 40 and the first rigid part 54 of the first flexible guide member 51 of the second assembly 50; and the support 36 is in turn integral with both the second rigid part 46 of the second flexible guide member 42 of the first assembly 40 and of the second rigid part 56 of the second flexible guide member 52 of the second assembly 50.
  • the flexible guide members 41, 42, 51, 52 thus arranged form a device for guiding in translation.
  • This translational guidance device is similar to a “four-neck table” type device as defined in the book. “Design of flexible guides” Simon Henein, 2003, Meta . Note that, in general, the “circular necks” of the guide members of the circular neck type described in this work could be replaced by guide members according to the invention.
  • the four axes of rotation 401, 402, 501, 502 of the necks of the flexible guide members 41, 42, 51, 52 are substantially parallel. This has the advantage of limiting blockages and / or large increases in stiffness.
  • the support 36, the translational guide device comprising the four flexible guide members 41, 42, 51, 52 and the movable frame 31 of the exhaust anchor could form a monolithic assembly.
  • the hollow 5 could, for example, take other forms than that previously described, as illustrated in figures 6a to 6e and 7 .
  • the first and second rigid parts, the first and second surfaces, the virtual axis of rotation, the neck, the hollow and the plane (P) of the variants of flexible guide members according to the invention illustrated are designated by the same markers that in the figure 1a .
  • the recess 5 could, for example, correspond only partially, typically only at its bottom, to the surface of part of a cylinder of revolution, as illustrated in FIG. figure 6a .
  • the neck 4 would then typically be defined by two segments of straight lines which are mutually parallel, perpendicular to the plane defined by the flat surface F1 and connected by two connecting fillets to an arc of a circle.
  • the hollow 5 could be such that, in top view, the neck 4 would be defined by a portion of ellipse, as illustrated in the figure 6b .
  • the hollow 5 could also not include a rounding, and take a triangular or more generally polygonal shape, as illustrated in figures 6c and 6d .
  • the hollow and the neck of the flexible guide member according to the invention typically comprise a plane of symmetry (P) defined as the plane including the virtual axis of rotation 100 and being perpendicular to the first surface F1.
  • P plane of symmetry
  • This is particularly the case in the embodiments shown in Figures 1a and 6a to 6d .
  • they may also not include such a plane of symmetry, as in the example illustrated in the figure 6e .
  • This will not affect the orientation of the virtual axis of rotation 100 with respect to the first surface F1.
  • the virtual axis of rotation 100 will be located in the thinnest part of the neck corresponding to the area having the lowest flexural strength.
  • the flexible guide member could have an overall shape different from that of a rectangular parallelepiped. It could for example have a generally cylindrical shape, typically in the form of a straight cylinder with a convex base, for example with a circular, oval base or in the form of a deltoid involute, as illustrated respectively in the Figures 8a to 8c , 9 and 10 .
  • Such flexible guide members are typically produced simply by machining a recess on one side of a substrate in the form of a straight cylinder with a convex base.
  • the part of the hollow 5 defining the thinnest part of the neck 4 has dimensions of length, width ( l neck ) and thickness adjusted to avoid creating an overly elastic neck and / or the presence of several virtual axes of rotation.
  • the flexible guide members according to the invention When the flexible guide members according to the invention are arranged in series, they can, as illustrated in figures 4 , 5a and 5b be oriented in the same direction. Alternatively, they can also be turned upside down, as illustrated in Figures 11a and 11b .
  • the body 22 of the escape anchor of the device 20 could be replaced by all or part of the following components: a rocker, a pawl, a jumper, an oscillator or a clockwork hammer.
  • the movable frame 31 of the device 30 could be replaced by all or part of the following components: an escape anchor, a rocker, a pawl, a jumper or an oscillator.
  • a flexible guide member according to the invention can typically be used to replace a guide member in rotation in any component, typically watchmaker, guided in rotation, typically over an angular range less than 45 °, preferably less at 25 °, preferably less than 10 °, more preferably less than 2 °.
  • Translation guide devices using several flexible guide members according to the invention can typically be used to replace a translation guide device in any component, typically a watchmaker, comprising a translation guide device.
  • At least two sets each comprising a first and a second flexible guide members according to the invention are arranged in series, the first rigid parts of the first flexible members of each of said at least two sets being integral with each other and the second rigid parts of the second flexible members of each of said at least two assemblies being integral with each other.

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Abstract

L'invention concerne un organe de guidage flexible (1) s'étendant longitudinalement selon un axe x et comprenant une première (2) et une seconde (3) parties rigides reliées par un col (4) déformable élastiquement, lesdites première (2) et seconde (3) parties rigides étant aptes à pivoter l'une par rapport à l'autre autour d'un axe de rotation virtuel (100) perpendiculaire à l'axe x par déformation élastique dudit col (4), ledit organe de guidage flexible (1) étant caractérisé en ce que ledit col (4) est défini par un seul creux (5).L'invention concerne également un dispositif (20 ; 30) comprenant un composant (22 ; 31), notamment horloger, au moins un organe de guidage flexible (1 ; 41 ; 42 ; 51 ; 52) selon l'invention et un support (21 ; 36), ledit au moins un organe de guidage flexible (1 ; 41 ; 42 ; 51 ; 52) étant apte à guider les mouvements dudit composant (22 ; 31) par rapport audit support (21 ; 36).Enfin, l'invention concerne une pièce d'horlogerie telle qu'une montre bracelet, une montre de poche, une pendule ou une pendulette comprenant un tel dispositif.The invention relates to a flexible guide member (1) extending longitudinally along an x axis and comprising a first (2) and a second (3) rigid parts connected by an elastically deformable neck (4), said first (2) and second (3) rigid parts being able to pivot relative to each other about a virtual axis of rotation (100) perpendicular to the x axis by elastic deformation of said neck (4), said guide member flexible (1) being characterized in that said neck (4) is defined by a single recess (5). The invention also relates to a device (20; 30) comprising at least one component (22; 31), in particular watchmaking, a flexible guide member (1; 41; 42; 51; 52) according to the invention and a support (21; 36), said at least one flexible guide member (1; 41; 42; 51; 52) being suitable guiding the movements of said component (22; 31) relative to said support (21; 36). Finally, the invention relates to a timepiece such as a wristwatch, a pocket watch, a pendulum or a pendulum comprising such a device.

Description

La présente invention concerne un organe de guidage flexible, un dispositif comprenant un composant, typiquement horloger, au moins un tel organe de guidage flexible et un support, et une pièce d'horlogerie comprenant un tel dispositif.The present invention relates to a flexible guide member, a device comprising a component, typically a watchmaker, at least one such flexible guide member and a support, and a timepiece comprising such a device.

Les organes de guidage flexible sont conçus pour pivoter sans axe de rotation physique, donc sans frottements, autour d'un axe de rotation virtuel, grâce à un agencement de parties élastiques.The flexible guide members are designed to pivot without a physical axis of rotation, therefore without friction, around a virtual axis of rotation, thanks to an arrangement of elastic parts.

Les organes de guidage flexibles de type à cols circulaires sont généralement utilisés dans des systèmes de guidage flexibles, lorsque la raideur du système doit être faible. Il s'agit typiquement de poutres de section rectangulaire et d'épaisseur variable dont le profil décrit deux demi-cercles concaves. De tels composants présentent l'avantage d'avoir une faible raideur et de limiter les moments de rappel élastique, cependant, ils présentent l'inconvénient de ne pas absorber les déplacements parasites.Flexible guide members of the circular neck type are generally used in flexible guide systems, when the stiffness of the system must be low. These are typically beams of rectangular section and of variable thickness, the profile of which describes two concave semicircles. Such components have the advantage of having a low stiffness and of limiting the moments of elastic return, however, they have the disadvantage of not absorbing parasitic displacements.

Les figures 12a et 12b représentent, respectivement en perspective et vue de dessus, un organe de guidage flexible 101 de type à cols circulaires selon l'art antérieur.The Figures 12a and 12b represent, respectively in perspective and top view, a flexible guide member 101 of the type with circular necks according to the prior art.

L'organe de guidage flexible 101 s'étend longitudinalement selon un axe x. Il a globalement la forme d'un parallélépipède rectangle de longueur L s'étendant dans la direction de l'axe x, de largeur l s'étendant dans la direction d'un axe y et d'épaisseur e s'étendant dans la direction d'un axe z The flexible guide member 101 extends longitudinally along an axis x. It generally has the shape of a rectangular parallelepiped of length L extending in the direction of the axis x, of width l extending in the direction of an axis y and of thickness e extending in the direction of a z axis

L'organe de guidage flexible 101 comprend deux creux 105a, 105b réalisés respectivement dans des surfaces F1, F2 planes opposées de l'organe de guidage flexible 101, lesdits creux 105a, 105b se faisant face de sorte à définir entre eux une zone amincie ou col 104 au niveau duquel la largeur de l'organe de guidage flexible 101 est amincie sur toute son épaisseur. Ce col 104 présente une certaine élasticité résultant de sa largeur lcol , relativement mince.The flexible guide member 101 comprises two recesses 105a, 105b produced respectively in planar opposite surfaces F1, F2 of the flexible guide member 101, said recesses 105a, 105b facing each other so as to define between them a thinned area or neck 104 at which the width of the flexible guide member 101 is thinned over its entire thickness. This neck 104 has a certain elasticity resulting from its width l neck , relatively thin.

L'organe de guidage flexible 101 comprend une première 102 et une seconde 103 parties rigides reliées par ledit col 104 déformable élastiquement de sorte que lesdites première 102 et seconde 103 parties rigides sont aptes à pivoter l'une par rapport à l'autre autour d'un axe de rotation virtuel R, perpendiculaire à l'axe x, parallèle aux surfaces F1 et F2 et traversant le col 104.The flexible guide member 101 comprises a first 102 and a second 103 rigid parts connected by said neck 104 elastically deformable so that said first 102 and second 103 rigid parts are able to pivot relative to each other around 'a virtual axis of rotation R, perpendicular to the x axis , parallel to the surfaces F1 and F2 and crossing the neck 104.

Les creux 105a, 105b prennent typiquement la forme de demi-cylindres de révolution d'axes parallèles à l'axe z. En vue de dessus, tel que représenté à la figure 12b, le profil de chacun desdits creux 105a, 105b est un arc de cercle de rayon r.The recesses 105a, 105b typically take the form of half-cylinders of revolution with axes parallel to the axis z. In top view, as shown in figure 12b , the profile of each of said recesses 105a, 105b is an arc of radius r.

Le col 104, notamment sa largeur lcol , est dimensionné en fonction des contraintes qu'il peut supporter.The neck 104, in particular its width l neck , is dimensioned according to the stresses that it can bear.

Le rayon r est typiquement au moins supérieur à cinq fois la largeur minimale lcol , de manière à éviter toute concentration de contraintes au milieu du col 104.The radius r is typically at least greater than five times the minimum width l neck , so as to avoid any concentration of stresses in the middle of the neck 104.

L'organe de guidage flexible 101 présente un plan P0 de symétrie longitudinale vertical incluant l'axe de rotation virtuel R et parallèle aux surfaces F1 et F2.The flexible guide member 101 has a plane P 0 of vertical longitudinal symmetry including the virtual axis of rotation R and parallel to the surfaces F1 and F2.

Tout mouvement relatif de la première partie 102 par rapport à la seconde partie 103 autre qu'un mouvement de rotation autour de l'axe de rotation virtuel R est considéré comme un mouvement parasite, les mouvements parasites incluant typiquement des mouvements de torsion, d'étirement ou de flexion transversale ainsi que des contraintes de cisaillement.Any relative movement of the first part 102 with respect to the second part 103 other than a rotational movement around the virtual axis of rotation R is considered to be a parasitic movement, the parasitic movements typically including movements of torsion, stretching or transverse bending as well as shear stresses.

La fabrication d'un tel organe de guidage flexible 101 de type à cols circulaires s'effectue traditionnellement par la réalisation de deux usinages distincts, un pour former chacun des creux 105a, 105b, par exemple à partir d'un bloc de matière ou substrat en forme de parallélépipède rectangle.The manufacture of such a flexible guide member 101 of the circular neck type is traditionally carried out by carrying out two separate machining operations, one to form each of the recesses 105a, 105b, for example from a block of material or substrate. in the shape of a rectangular parallelepiped.

Un tel procédé de fabrication est intuitif pour l'homme du métier qui place ainsi l'axe de rotation virtuel R au centre de l'organe de guidage flexible 101, notamment dans le sens de sa largeur.Such a manufacturing process is intuitive for those skilled in the art, which thus places the virtual axis of rotation R at the center of the flexible guide member 101, in particular in the direction of its width.

Lors d'un tel procédé de fabrication, des défauts d'usinage peuvent entraîner une rotation de l'axe de rotation virtuel R dans n'importe quel sens, ce qui a pour conséquence la création d'un déplacement parasite.During such a manufacturing process, machining faults can cause rotation of the virtual axis of rotation R in any direction, which results in the creation of a parasitic displacement.

Un défaut d'usinage du col de 2° (valeur typique du défaut d'usinage) engendre un déplacement parasite d'environ 3% au niveau de l'organe de guidage. Un tel déplacement parasite peut ne pas avoir d'influence lorsqu'il est considéré seul. Cependant, lorsque deux ou plusieurs organes de guidage doivent travailler ensemble, typiquement lorsqu'ils sont installés en série, si les axes de rotation ne sont pas parallèles les uns aux autres, les déplacements parasites peuvent être en opposition et entraîner des blocages ou de fortes augmentations de la raideur.A machining defect of the neck of 2 ° (typical value of the machining defect) generates a parasitic displacement of approximately 3% at the level of the guide member. Such parasitic displacement may have no influence when considered alone. However, when two or more guide members have to work together, typically when they are installed in series, if the axes of rotation are not parallel to each other, the parasitic displacements can be in opposition and cause blockages or strong stiffness increases.

Un but de la présente invention est de proposer un organe de guidage flexible permettant de pallier, au moins en partie, les inconvénients précités.An object of the present invention is to provide a flexible guide member making it possible to overcome, at least in part, the aforementioned drawbacks.

L'invention propose à cette fin un organe de guidage flexible s'étendant longitudinalement selon un axe x et comprenant une première et une seconde parties rigides reliées par un col déformable élastiquement, lesdites première et seconde parties rigides étant aptes à pivoter l'une par rapport à l'autre autour d'un axe de rotation virtuel perpendiculaire à l'axe x par déformation élastique dudit col, ledit organe de guidage flexible étant caractérisé en ce que ledit col est défini par un seul creux.To this end, the invention provides a flexible guide member extending longitudinally along an axis x and comprising first and second rigid parts connected by an elastically deformable neck, said first and second rigid parts being able to pivot one by relative to each other around a virtual axis of rotation perpendicular to the x axis by elastic deformation of said neck, said flexible guide member being characterized in that said neck is defined by a single hollow.

De préférence, dans chaque plan de coupe de l'organe de guidage flexible perpendiculaire à l'axe de rotation virtuel, le col est défini par une courbe concave correspondant à une coupe longitudinale dudit creux et par un segment de droite situé en regard de cette courbe. De préférence, le profil dudit creux est le même dans tous les plans de coupe dudit organe de guidage flexible perpendiculaires à l'axe de rotation virtuel R.Preferably, in each section plane of the flexible guide member perpendicular to the virtual axis of rotation, the neck is defined by a concave curve corresponding to a longitudinal section of said hollow and by a line segment located opposite this curve. Preferably, the profile of said recess is the same in all the cutting planes of said flexible guide member perpendicular to the virtual axis of rotation R.

Avantageusement, ledit creux traverse toute l'épaisseur de l'organe de guidage flexible.Advantageously, said hollow crosses the entire thickness of the flexible guide member.

De préférence, l'organe de guidage flexible selon l'invention peut être réalisé en silicium (éventuellement oxydé), en métal, en plastique, en céramique, en saphir (oxyde d'aluminium), en béryllium ou en polymère.Preferably, the flexible guide member according to the invention can be made of silicon (optionally oxidized), metal, plastic, ceramic, sapphire (aluminum oxide), beryllium or polymer.

L'invention propose également un dispositif comprenant un composant, notamment horloger, au moins un organe de guidage flexible selon l'invention et un support, ledit au moins un organe de guidage flexible étant apte à guider les mouvements dudit composant par rapport audit support.The invention also provides a device comprising a component, in particular a watchmaking component, at least one flexible guide member according to the invention and a support, said at least one flexible guide member being able to guide the movements of said component relative to said support.

Ledit composant peut typiquement être un composant horloger, par exemple choisi parmi une ancre d'échappement, une bascule, un cliquet, un sautoir, un oscillateur et un marteau d'horlogerie ou une partie seulement d'un tel composant horloger. On entend typiquement par « marteau d'horlogerie » un marteau tel qu'un marteau de chronographe ou de sonnerie.Said component can typically be a timepiece component, for example chosen from an escape anchor, a rocker, a pawl, a jumper, an oscillator and a clockwork hammer or only part of such a timepiece component. The term “clockwork hammer” typically means a hammer such as a chronograph or striking hammer.

Dans un mode de réalisation préféré de l'invention, le dispositif comprend au moins deux organes de guidage flexible selon l'invention agencés en série. Ces deux organes peuvent être orientés dans le même sens ou être orientés tête-bêche.In a preferred embodiment of the invention, the device comprises at least two flexible guide members according to the invention arranged in series. These two bodies can be oriented in the same direction or be turned upside down.

De manière avantageuse, le dispositif selon l'invention est monolithique.Advantageously, the device according to the invention is monolithic.

Avantageusement, le dispositif selon l'invention comprend au moins deux ensembles comprenant chacun deux organes de guidage flexible selon l'invention agencés en série, lesdits ensembles étant agencés en parallèle. Un tel dispositif permet typiquement le guidage dudit composant par rapport au support essentiellement en translation.Advantageously, the device according to the invention comprises at least two assemblies each comprising two flexible guide members according to the invention arranged in series, said assemblies being arranged in parallel. Such a device typically allows the guiding of said component relative to the support essentially in translation.

Enfin, l'invention propose également une pièce d'horlogerie telle qu'une montre bracelet, une montre de poche, une pendule ou une pendulette comprenant un tel dispositif.Finally, the invention also provides a timepiece such as a wristwatch, a pocket watch, a pendulum or a pendulum comprising such a device.

Dans le cadre de la présente invention, l'expression organes de guidage flexible « agencés en série » désigne un agencement dans lequel les organes de guidage flexibles sont montés les uns à la suite des autres de sorte que la seconde partie rigide de l'un corresponde à la première partie rigide de l'autre.In the context of the present invention, the expression flexible guide members “arranged in series” designates an arrangement in which the flexible guide members are mounted one after the other so that the second rigid part of one corresponds to the first rigid part of the other.

Plusieurs ensembles comprenant chacun deux organes de guidage flexible selon l'invention agencés en série sont dits « agencés en parallèle » lorsque d'une part les premières parties rigides de leurs premiers organes de guidage flexible sont solidaires entre elles et d'autre part les secondes parties rigides de leurs seconds organes de guidage flexibles sont solidaires entre elles.Several assemblies each comprising two flexible guide members according to the invention arranged in series are said to be "arranged in parallel" when on the one hand the first rigid parts of their first flexible guide members are integral with one another and on the other hand the second rigid parts of their second flexible guide members are integral with each other.

Les inventeurs ont constaté que la raideur et la fonction de guidage de l'organe de guidage flexible selon l'invention sont au moins équivalentes à celles d'un organe de guidage flexible de type à cols circulaires selon l'art antérieur (figures 12a et 12b).The inventors have found that the stiffness and the guiding function of the flexible guide member according to the invention are at least equivalent to that of a flexible guide member of the circular neck type according to the prior art ( Figures 12a and 12b ).

De plus, le col de l'organe de guidage flexible selon l'invention n'est défini que par un seul creux. Ainsi, l'usinage d'un seul creux est suffisant pour fabriquer un tel organe de guidage flexible ce qui divise par deux le risque de défaut d'usinage par rapport à un organe de guidage flexible selon l'art antérieur à deux cols. Ceci présente un grand intérêt, en particulier dans les cas où plusieurs organes de guidage doivent travailler ensemble, typiquement lorsqu'au moins deux organes de guidage flexible travaillent ensemble, par exemple, quand ils sont agencés en série.In addition, the neck of the flexible guide member according to the invention is only defined by a single hollow. Thus, the machining of a single recess is sufficient to manufacture such a flexible guide member which halves the risk of machining defect compared to a flexible guide member according to the prior art with two necks. This is of great interest, in particular in cases where several guide members have to work together, typically when at least two flexible guide members work together, for example, when they are arranged in series.

La configuration de l'organe de guidage flexible selon l'invention implique le décentrage de l'axe de rotation virtuel par rapport à l'organe de guidage flexible. Cependant, les inventeurs ont constaté que le centrage de l'axe de rotation virtuel sur l'organe de guidage flexible n'est pas nécessaire même dans les cas où plusieurs organes de guidage doivent travailler ensemble. Dans ce cas, ce qui est important, c'est que les différents axes de rotations virtuels soient parallèles les uns aux autres.The configuration of the flexible guide member according to the invention involves decentering the virtual axis of rotation relative to the flexible guide member. However, the inventors have found that centering the virtual axis of rotation on the flexible guide member is not necessary even in cases where several guide members have to work together. In this case, what is important is that the different virtual rotation axes are parallel to each other.

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

  • Les figures 1a et 1b représentent, respectivement en perspective et en vue de dessus, un organe de guidage flexible selon un mode de réalisation particulier de l'invention.
  • La figure 2 représente un bloc de matière pouvant être utilisé comme substrat pour la réalisation de l'organe de guidage flexible des figures 1a et 1b.
  • La figure 3 représente, en vue de dessus, un dispositif comprenant une première partie constituant le corps d'une ancre d'échappement, une seconde partie constituant un support de ladite ancre d'échappement et un organe de guidage flexible tel qu'illustré aux figures 1a et 1b, ledit organe de guidage permettant le guidage en rotation de ladite ancre par rapport audit support.
  • La figure 4 représente, en vue de dessus, un dispositif comprenant un cadre mobile d'une ancre d'échappement destiné à effectuer des mouvements alternatifs en translation, deux ensembles, chacun de ces ensembles comprenant deux organes de guidage flexible tels que celui illustré aux figures 1a et 1b et un support de ladite ancre d'échappement, lesdits ensembles permettant le guidage en translation du cadre mobile par rapport audit support.
  • Les figures 5a et 5b représentent respectivement en vue de dessus et en perspective un ensemble tel que ceux de la figure 4.
  • Les figures 6a à 6e, 7, 9 et 10 représentent, en perspective, des variantes de l'organe de guidage flexible représenté aux figures 1a et 1b.
  • Les figures 8a, 8b et 8c représentent respectivement, en perspective, en vue de dessus et en vue de côté une autre variante de l'organe de guidage flexible tel qu'illustré aux figures 1a et 1b.
  • Les figures 11a et 11b représentent respectivement en vue de dessus et en perspective une variante de l'ensemble représenté aux figures 5a et 5b.
  • Les figures 12a et 12b représentent respectivement en perspective et en vue de dessus un organe de guidage flexible de type à cols circulaires selon l'art antérieur.
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:
  • The Figures 1a and 1b represent, respectively in perspective and in top view, a flexible guide member according to a particular embodiment of the invention.
  • The figure 2 represents a block of material which can be used as a substrate for the production of the flexible guide member for Figures 1a and 1b .
  • The figure 3 shows, in top view, a device comprising a first part constituting the body of an exhaust anchor, a second part constituting a support of said exhaust anchor and a flexible guide member as illustrated in Figures 1a and 1b , said guide member allowing the guiding in rotation of said anchor relative to said support.
  • The figure 4 shows, in top view, a device comprising a movable frame of an escape anchor intended to perform reciprocating movements in translation, two assemblies, each of these assemblies comprising two flexible guide members such as that illustrated in Figures 1a and 1b and a support for said exhaust anchor, said assemblies allowing the movable frame to be guided in translation relative to said support.
  • The Figures 5a and 5b respectively represent in top view and in perspective an assembly such as those of the figure 4 .
  • The figures 6a to 6e , 7 , 9 and 10 represent, in perspective, variants of the flexible guide member shown in Figures 1a and 1b .
  • The Figures 8a, 8b and 8c represent respectively, in perspective, in top view and in side view another variant of the flexible guide member as illustrated in Figures 1a and 1b .
  • The Figures 11a and 11b represent respectively in top view and in perspective a variant of the assembly shown in Figures 5a and 5b .
  • The Figures 12a and 12b respectively represent in perspective and in top view a flexible guide member of the circular neck type according to the prior art.

En référence à la figure 1a, un organe de guidage flexible 1 selon un mode de réalisation particulier de l'invention a globalement la forme d'un parallélépipède rectangle de longueur L s'étendant dans la direction d'un l'axe x, de largeur l s'étendant dans la direction d'un axe y et d'épaisseur e s'étendant dans la direction d'un axe z. With reference to the figure 1a , a flexible guide member 1 according to a particular embodiment of the invention generally has the shape of a rectangular parallelepiped of length L extending in the direction of an axis x, of width l extending in the direction of an axis y and of thickness e extending in the direction of an axis z.

L'organe de guidage flexible 1 comprend une première 2 et une seconde 3 parties rigides reliées par un col 4, correspondant à une zone amincie de l'organe de guidage flexible 1, déformable élastiquement, lesdites première 2 et seconde 3 parties rigides étant aptes à pivoter l'une par rapport à l'autre autour d'un axe de rotation virtuel 100 par déformation élastique dudit col 4, ledit axe 100 étant perpendiculaire à l'axe x. The flexible guide member 1 comprises a first 2 and a second 3 rigid parts connected by a neck 4, corresponding to a thinned area of the flexible guide member 1, elastically deformable, said first 2 and second 3 rigid parts being suitable to pivot relative to each other about a virtual axis of rotation 100 by elastic deformation of said neck 4, said axis 100 being perpendicular to the x axis .

Comme illustré à la figure 1a, l'organe de guidage flexible 1 comprend six surfaces: F1, F2, F3, F4, F5 et F6, la surface F6 définissant le dessus de l'organe de guidage flexible 1.As illustrated in figure 1a , the flexible guide member 1 comprises six surfaces: F1, F2, F3, F4, F5 and F6, the surface F6 defining the top of the flexible guide member 1.

La surface F1 est plane et parallèle à l'axe x. Elle comprend une première surface F1-2 de la première partie rigide 2 et une première surface F1-3 de la seconde partie rigide 3.The surface F1 is planar and parallel to the x axis . It comprises a first surface F 1-2 of the first rigid part 2 and a first surface F 1-3 of the second rigid part 3.

La surface F2 est située en regard de la surface F1. Elle s'étend typiquement dans un plan parallèle à celui défini par la surface F1. Comme illustré à la figure 1a, la surface F2 comprend une seconde surface F2-2 de la première partie rigide 2 et une seconde surface F2-3 de la seconde partie rigide 3. Avantageusement, les faces F2-2 et F2-3 sont planes et parallèles à la surface plane F1.The surface F2 is located opposite the surface F1. It typically extends in a plane parallel to that defined by the surface F1. As illustrated in figure 1a , the surface F2 comprises a second surface F 2-2 of the first rigid part 2 and a second surface F 2-3 of the second rigid part 3. Advantageously, the faces F 2-2 and F 2-3 are plane and parallel to the flat surface F1.

La surface F2 comprend également un creux 5. Ce creux 5 et une portion 6 de la surface F1 située en regard dudit creux 5 définissent entre eux le col 4 au niveau duquel la largeur « l » de l'organe de guidage flexible 1 est amincie, jusqu'à une valeur minimale « lcol », sur toute son épaisseur e, comme illustré aux figures 1a et 1b.The surface F2 also includes a recess 5. This recess 5 and a portion 6 of the surface F1 located opposite said recess 5 define between them the neck 4 at which the width " l " of the flexible guide member 1 is thinned , up to a minimum value " l col ", over its entire thickness e, as illustrated in Figures 1a and 1b .

Ce col 4 présente une certaine élasticité résultant de la finesse de sa largeur minimale lcol . La largeur lcol est calculée de manière à ce que la contrainte maximale exercée par les mouvements relatifs des première 2 et seconde 3 parties l'une par rapport à l'autre sur ledit col 4 soit inférieure à la limite élastique du matériau constituant ce col 4.This neck 4 has a certain elasticity resulting from the fineness of its minimum width l neck . The width l neck is calculated so that the maximum stress exerted by the relative movements of the first 2 and second 3 parts relative to each other on said neck 4 is less than the elastic limit of the material constituting this neck 4.

De préférence, le profil dudit creux 5 est le même dans tous les plans de coupe de l'organe de guidage flexible 1 perpendiculaires à l'axe de rotation virtuel 100.Preferably, the profile of said recess 5 is the same in all the planes of section of the flexible guide member 1 perpendicular to the virtual axis of rotation 100.

Le creux 5 de l'organe de guidage flexible 1 a la forme d'un demi-cylindre de révolution d'axe parallèle à l'axe de rotation virtuel 100, de rayon r et de hauteur e correspondant à l'épaisseur e précédemment définie. En vue de dessus (figure 1b), le col 4 est donc défini, d'une part par un demi-cercle concave de rayon r et d'autre part par un segment de droite correspondant à la portion 6 de la surface plane F1. L'organe de guidage flexible 1 est en particulier tel que dans chacun de ses plans de coupe perpendiculaires à l'axe de rotation virtuel 100, le col 4 est défini par ce demi-cercle de rayon r concave correspondant à une coupe longitudinale dudit creux 5 et par un segment de droite situé en regard de cette courbe.The hollow 5 of the flexible guide member 1 has the shape of a half-cylinder of revolution with an axis parallel to the virtual axis of rotation 100, of radius r and height e corresponding to the thickness e previously defined. . In top view ( figure 1b ), the neck 4 is therefore defined, on the one hand by a concave semicircle of radius r and on the other hand by a line segment corresponding to the portion 6 of the flat surface F1. The flexible guide member 1 is in particular such that in each of its cutting planes perpendicular to the virtual axis of rotation 100, the neck 4 is defined by this semicircle of radius r concave corresponding to a longitudinal section of said hollow 5 and by a line segment located opposite this curve.

Le creux 5 et le col 4 de l'organe de guidage flexible 1 comportent typiquement un plan (P) de symétrie (transversal), ce plan étant défini comme le plan incluant l'axe de rotation virtuel 100 et étant perpendiculaire à la première surface F1. Cependant, contrairement à l'organe de guidage flexible 101 illustré aux figures 12a et 12b, l'organe de guidage 1 selon l'invention ne comprend pas de plan de symétrie longitudinale vertical tel que le plan P0 illustré aux figures 12a et 12b, qui inclurait l'axe de rotation virtuel 100 et qui serait parallèle à la surface F1.The recess 5 and the neck 4 of the flexible guide member 1 typically comprise a plane (P) of symmetry (transverse), this plane being defined as the plane including the virtual axis of rotation 100 and being perpendicular to the first surface F1. However, unlike the flexible guide member 101 illustrated in Figures 12a and 12b , the guide member 1 according to the invention does not include a plane of vertical longitudinal symmetry such as the plane P 0 illustrated in Figures 12a and 12b , which would include the virtual axis of rotation 100 and which would be parallel to the surface F1.

Les surfaces F3 et F4 de l'organe de guidage flexible 1 sont typiquement planes, parallèles entres elles et perpendiculaires aux surfaces F1 et F2 ainsi qu'à l'axe x et les surfaces F5 et F6 sont typiquement planes, parallèles entre elles et perpendiculaires aux surfaces F1, F2, F3 et F4.The surfaces F3 and F4 of the flexible guide member 1 are typically planar, mutually parallel and perpendicular to the surfaces F1 and F2 as well as to the x axis and the surfaces F5 and F6 are typically planar, mutually parallel and perpendicular to surfaces F1, F2, F3 and F4.

Pour réaliser l'organe de guidage flexible 1 tel que représenté aux figures 1a et 1b, une première étape a) consiste à se munir d'un bloc de matière 10 ou substrat 10 dont la forme est typiquement celle représentée à la figure 2.To make the flexible guide member 1 as shown in Figures 1a and 1b , a first step a) consists of providing a block of material 10 or substrate 10 whose shape is typically that shown in the figure 2 .

Ce substrat 10 particulier à la forme d'un parallélépipède rectangle de longueur L, de largeur l et d'épaisseur e correspondants aux longueur L, largeur l et épaisseur e de l'organe de guidage flexible 1 à réaliser.This particular substrate 10 has the shape of a rectangular parallelepiped of length L , of width l and of thickness e corresponding to the length L , width l and thickness e of the flexible guide member 1 to be produced.

Par définition, ce bloc de matière 10 comprend six surfaces planes rectangulaires :

  • les surfaces F1 et F2, chacune étant délimitée par deux arêtes de longueur L et par deux arêtes de longueur e ;
  • les surfaces F3 et F4, chacune étant délimitée par deux arêtes de longueur l et par deux arêtes de longueur e ; et
  • les surfaces F5 et F6, chacune étant délimitée par deux arêtes de longueur L et par deux arêtes de longueur l ; ces surfaces F5, F6 définissant respectivement le dessous et le dessus dudit substrat.
By definition, this block of material 10 comprises six rectangular flat surfaces:
  • the surfaces F1 and F2, each being delimited by two edges of length L and by two edges of length e ;
  • the surfaces F3 and F4, each being delimited by two edges of length l and by two edges of length e ; and
  • the surfaces F5 and F6, each being delimited by two edges of length L and by two edges of length l ; these surfaces F5, F6 respectively defining the bottom and the top of said substrate.

Dans une étape ultérieure b) de ce procédé de fabrication, un creux 5 en forme de demi-cylindre de révolution d'axe parallèle à l'axe 100 s'étendant sur toute la largeur l du substrat 10, est typiquement usiné à partir de la surface F2 du substrat 10 pour obtenir l'organe de guidage flexible 1.In a subsequent step b) of this manufacturing process, a hollow 5 in the form of a half-cylinder of revolution with an axis parallel to the axis 100 extending over the entire width l of the substrate 10, is typically machined from the surface F2 of the substrate 10 to obtain the flexible guide member 1.

Un tel usinage peut typiquement être réalisé par enlèvement de copeaux, mais d'autres techniques telles que la gravure chimique ou gravure ionique réactive profonde (DRIE) sont envisageables.Such machining can typically be carried out by chip removal, but other techniques such as chemical etching or deep reactive ion etching (DRIE) are possible.

Un organe de guidage flexible selon l'invention peut également être obtenu sans étape d'usinage, par exemple par croissance galvanique, injection, moulage, ou forgeage.A flexible guide member according to the invention can also be obtained without a machining step, for example by galvanic growth, injection, molding, or forging.

Le dispositif 20 illustré à la figure 3 comprend une partie d'une ancre d'échappement, à savoir un corps 22 d'une ancre d'échappement, un organe de guidage flexible 1 et un support 21 de ladite ancre d'échappement.The device 20 illustrated in figure 3 comprises a part of an escape anchor, namely a body 22 of an escape anchor, a flexible guide member 1 and a support 21 of said escape anchor.

Dans le dispositif 20, la première partie rigide 2 de l'organe de guidage flexible 1 est solidaire du support 21 lui-même fixé sur un bâti 200 tel qu'une platine, un pont ou une cage de tourbillon par exemple à l'aide d'une vis 23; et la seconde partie rigide 3 est solidaire dudit corps 22. L'organe de guidage flexible 1 permet de guider en rotation le corps 22 par rapport au support 21 autour de l'axe 100.In the device 20, the first rigid part 2 of the flexible guide member 1 is integral with the support 21 itself fixed on a frame 200 such as a plate, a bridge or a tourbillon cage for example using a screw 23; and the second rigid part 3 is integral with said body 22. The flexible guide member 1 makes it possible to guide the body 22 in rotation relative to the support 21 around the axis 100.

Le guidage en rotation du corps 22 de l'ancre d'échappement par rapport au support 21 se fait typiquement sur des angles de rotation compris entre 5° et 40°.The guiding in rotation of the body 22 of the exhaust anchor relative to the support 21 is typically done on angles of rotation of between 5 ° and 40 °.

Dans un mode de réalisation particulier de l'invention, le support 21, l'organe de guidage flexible 1 et le corps 22 de l'ancre d'échappement pourraient former un ensemble monolithique.In a particular embodiment of the invention, the support 21, the flexible guide member 1 and the body 22 of the escape anchor could form a monolithic assembly.

Le dispositif 30 illustré à la figure 4 comprend quant à lui un cadre mobile d'une ancre d'échappement, quatre organes de guidage flexible 41, 42, 51, 52 tels que l'organe de guidage flexible 1, et un support 36 de ladite ancre d'échappement.The device 30 illustrated in figure 4 comprises a movable frame of an escape anchor, four flexible guide members 41, 42, 51, 52 such as the flexible guide member 1, and a support 36 of said escape anchor.

Le cadre mobile 31 coopère d'une part avec une roue d'échappement 32 d'un mécanisme horloger et d'autre part avec la cheville de plateau 33 d'un plateau de balancier 34. Le cadre mobile 31 est conçu pour effectuer des mouvements alternatifs en translation dans les deux sens indiqués par la flèche 35.The movable frame 31 cooperates on the one hand with an escapement wheel 32 of a clockwork mechanism and on the other hand with the plate pin 33 of a balance plate 34. The mobile frame 31 is designed to perform movements in translation in both directions indicated by arrow 35.

Le guidage en translation du cadre mobile 31 est assuré par un dispositif de guidage en translation comprenant des premier 40 et second 50 ensembles identiques, agencés en parallèles et reliant le cadre mobile 31 à un support 36 fixé sur un bâti 300 tel qu'une platine, un pont ou une cage de tourbillon, par exemple à l'aide de vis 37.The movable frame 31 is guided in translation by a translational guide device comprising first 40 and second 50 identical assemblies, arranged in parallel and connecting the movable frame 31 to a fixed support 36 on a frame 300 such as a turntable, a bridge or a tourbillon cage, for example using screws 37.

Les figures 5a et 5b représentent, pour la compréhension de l'invention, ledit second ensemble 50 isolé du dispositif 30.The Figures 5a and 5b represent, for understanding the invention, said second assembly 50 isolated from device 30.

Comme illustré aux figures 5a et 5b, l'ensemble 50 comprend :

  • un premier organe de guidage flexible 51 comprenant une première partie rigide 54 et une seconde partie rigide 53 reliées par un col 55 et aptes à pivoter l'une par rapport à l'autre autour d'un axe de rotation virtuel 501 ; et
  • un second organe de guidage flexible 52 comprenant comme première partie rigide ladite partie rigide 53 et une seconde partie rigide 56 reliées par un col 57 et aptes à pivoter l'une par rapport à l'autre autour d'un axe de rotation virtuel 502.
As illustrated in Figures 5a and 5b , the assembly 50 includes:
  • a first flexible guide member 51 comprising a first rigid part 54 and a second rigid part 53 connected by a neck 55 and capable of pivoting one relative to the other about a virtual axis of rotation 501; and
  • a second flexible guide member 52 comprising, as first rigid part, said rigid part 53 and a second rigid part 56 connected by a neck 57 and capable of pivoting one relative to the other about a virtual axis of rotation 502.

Au sein du second ensemble 50, les premier 51 et second 52 organes de guidage flexible sont montés l'un à la suite de l'autre de sorte que la seconde partie rigide 53 dudit premier organe de guidage flexible 51 corresponde à la première partie rigide 53 dudit second organe de guidage flexible 52, on dit qu'ils sont montés « en série ».Within the second assembly 50, the first 51 and second 52 flexible guide members are mounted one after the other so that the second rigid part 53 of said first flexible guide member 51 corresponds to the first rigid part 53 of said second flexible guide member 52, it is said that they are mounted “in series”.

Par analogie, la seconde partie rigide 43 dudit premier organe de guidage flexible 41 du premier ensemble 40 est également la première partie rigide du second organe de guidage flexible 42 du premier ensemble 40.By analogy, the second rigid part 43 of said first flexible guide member 41 of the first set 40 is also the first rigid part of the second flexible guide member 42 of the first set 40.

Dans le dispositif 30 illustré à la figure 4, les premier 40 et second 50 ensembles sont agencés en parallèle. En effet, le cadre mobile 31 est solidaire à la fois de la première partie rigide 44 du premier organe de guidage flexible 41 du premier ensemble 40 et de la première partie rigide 54 du premier organe de guidage flexible 51 du second ensemble 50 ; et le support 36 est quant à lui solidaire à la fois de la seconde partie rigide 46 du second organe de guidage flexible 42 du premier ensemble 40 et de la seconde partie rigide 56 du second organe de guidage flexible 52 du second ensemble 50.In the device 30 illustrated in the figure 4 , the first 40 and second 50 sets are arranged in parallel. Indeed, the movable frame 31 is integral with both the first rigid part 44 of the first flexible guide member 41 of the first assembly 40 and the first rigid part 54 of the first flexible guide member 51 of the second assembly 50; and the support 36 is in turn integral with both the second rigid part 46 of the second flexible guide member 42 of the first assembly 40 and of the second rigid part 56 of the second flexible guide member 52 of the second assembly 50.

Les organes de guidages flexibles 41, 42, 51, 52 ainsi agencés forment un dispositif de guidage en translation. Ce dispositif de guidage en translation s'apparente à un dispositif de type « table à quatre cols » telle que défini dans l'ouvrage « Conception des guidages flexibles » Simon Henein, 2003, Meta . Notons que, de façon générale, les « cols circulaires » des organes de guidage de type à cols circulaires décrits dans cet ouvrage pourraient être remplacés par des organes de guidage selon l'invention.The flexible guide members 41, 42, 51, 52 thus arranged form a device for guiding in translation. This translational guidance device is similar to a “four-neck table” type device as defined in the book. “Design of flexible guides” Simon Henein, 2003, Meta . Note that, in general, the “circular necks” of the guide members of the circular neck type described in this work could be replaced by guide members according to the invention.

Par analogie, on peut également envisager la réalisation de guidages en translation de type table à six ou huit cols utilisant plusieurs organes de guidage flexible 1. De manière générale, sur ce principe, des dispositifs de guidage en translation comprenant au moins deux ensembles agencés en parallèle, chacun desdits ensembles comprenant typiquement deux voire plus de deux organes de guidage flexible agencés en série, peuvent être réalisés.By analogy, one can also envisage the realization of guides in translation of the table type with six or eight necks using several flexible guide members 1. In general, on this principle, devices for guiding in translation comprising at least two assemblies arranged in parallel, each of said assemblies typically comprising two or even more than two flexible guide members arranged in series, can be produced.

Les quatre axes de rotation 401, 402, 501, 502 des cols des organes de guidage flexibles 41, 42, 51, 52 sont sensiblement parallèles. Ceci présente l'avantage de limiter les blocages et/ou de fortes augmentations de la raideur.The four axes of rotation 401, 402, 501, 502 of the necks of the flexible guide members 41, 42, 51, 52 are substantially parallel. This has the advantage of limiting blockages and / or large increases in stiffness.

De manière avantageuse, le support 36, le dispositif de guidage en translation comprenant les quatre organes de guidage flexibles 41, 42, 51, 52 et le cadre mobile 31 de l'ancre d'échappement pourraient former un ensemble monolithique.Advantageously, the support 36, the translational guide device comprising the four flexible guide members 41, 42, 51, 52 and the movable frame 31 of the exhaust anchor could form a monolithic assembly.

Il apparaîtra clairement à l'homme du métier que la présente invention n'est en aucun cas limitée aux modes de réalisation présentés ci-dessus et illustrés dans les figures.It will be clear to those skilled in the art that the present invention is in no way limited to the embodiments presented above and illustrated in the figures.

Le creux 5 pourrait par exemple prendre d'autres formes que celle précédemment décrite, comme illustré aux figures 6a à 6e et 7.The hollow 5 could, for example, take other forms than that previously described, as illustrated in figures 6a to 6e and 7 .

Dans les figures 6a à 6e, par analogie à la figure 1a, les première et seconde parties rigides, les première et seconde surfaces, l'axe de rotation virtuel, le col, le creux et le plan (P) des variantes d'organes de guidage flexible selon l'invention illustrées sont désignés par les mêmes repères que dans la figure 1a.In the figures 6a to 6e , by analogy to the figure 1a , the first and second rigid parts, the first and second surfaces, the virtual axis of rotation, the neck, the hollow and the plane (P) of the variants of flexible guide members according to the invention illustrated are designated by the same markers that in the figure 1a .

Le creux 5 pourrait par exemple correspondre uniquement en partie, typiquement uniquement en son fond, à la surface d'une partie d'un cylindre de révolution, comme illustré à la figure 6a. En vue de dessus, le col 4 serait alors typiquement défini par deux segments de droites parallèles entre eux, perpendiculaires au plan défini par la surface plane F1 et reliés par deux congés de raccordement à un arc de cercle.The recess 5 could, for example, correspond only partially, typically only at its bottom, to the surface of part of a cylinder of revolution, as illustrated in FIG. figure 6a . When viewed from above, the neck 4 would then typically be defined by two segments of straight lines which are mutually parallel, perpendicular to the plane defined by the flat surface F1 and connected by two connecting fillets to an arc of a circle.

Dans d'autres variantes, le creux 5 pourrait être tel que, en vue de dessus, le col 4 serait défini par une portion d'ellipse, comme illustré à la figure 6b.In other variants, the hollow 5 could be such that, in top view, the neck 4 would be defined by a portion of ellipse, as illustrated in the figure 6b .

Le creux 5 pourrait également ne pas comprendre d'arrondi, et prendre une forme triangulaire ou plus généralement polygonale, comme illustré aux figures 6c et 6d.The hollow 5 could also not include a rounding, and take a triangular or more generally polygonal shape, as illustrated in figures 6c and 6d .

Comme indiqué précédemment, le creux et le col de l'organe de guidage flexible selon l'invention comportent typiquement un plan de symétrie (P) défini comme le plan incluant l'axe de rotation virtuel 100 et étant perpendiculaire à la première surface F1. C'est le cas notamment dans les modes de réalisation représentés aux figures 1a et 6a à 6d. Dans d'autres variantes, ils peuvent également ne pas comprendre un tel plan de symétrie, comme dans l'exemple illustré à la figure 6e. Cela n'impactera pas l'orientation de l'axe de rotation virtuel 100 par rapport à la première surface F1. L'axe de rotation virtuel 100 se situera dans la partie la plus fine du col correspondant à la zone ayant la plus faible résistance à la flexion.As indicated previously, the hollow and the neck of the flexible guide member according to the invention typically comprise a plane of symmetry (P) defined as the plane including the virtual axis of rotation 100 and being perpendicular to the first surface F1. This is particularly the case in the embodiments shown in Figures 1a and 6a to 6d . In other variants, they may also not include such a plane of symmetry, as in the example illustrated in the figure 6e . This will not affect the orientation of the virtual axis of rotation 100 with respect to the first surface F1. The virtual axis of rotation 100 will be located in the thinnest part of the neck corresponding to the area having the lowest flexural strength.

Dans d'autres variantes, il est aussi possible, comme illustré à la figure 7, d'avoir une variation de la forme du creux 5 le long de l'axe, et donc un profil du creux 5 variant selon les plans de coupe dudit organe de guidage flexible perpendiculaires à l'axe de rotation virtuel R.In other variants, it is also possible, as illustrated in the figure 7 , to have a variation of the shape of the hollow 5 along the axis, and therefore a profile of the hollow 5 varying according to the section planes of said flexible guide member perpendicular to the virtual axis of rotation R.

Dans encore d'autres variantes, l'organe de guidage flexible pourrait posséder une forme globale différente d'un parallélépipède rectangle. Il pourrait par exemple avoir une forme globalement cylindrique, typiquement en forme de cylindre droit à base convexe, par exemple à base circulaire, ovale ou en forme de développante de deltoïde, comme illustré respectivement dans les figures 8a à 8c, 9 et 10. De tels organes de guidages flexibles sont typiquement réalisés simplement par usinage d'un creux sur un des côtés d'un substrat en forme de cylindre droit à base convexe.In still other variants, the flexible guide member could have an overall shape different from that of a rectangular parallelepiped. It could for example have a generally cylindrical shape, typically in the form of a straight cylinder with a convex base, for example with a circular, oval base or in the form of a deltoid involute, as illustrated respectively in the Figures 8a to 8c , 9 and 10 . Such flexible guide members are typically produced simply by machining a recess on one side of a substrate in the form of a straight cylinder with a convex base.

Les repères utilisés dans les variantes illustrées aux figures 7 à 10 sont les mêmes que ceux utilisés dans les figures 1a et 1b.The marks used in the variants illustrated in figures 7 to 10 are the same as those used in Figures 1a and 1b .

Quelle que soit la variante mise en oeuvre, la partie du creux 5 définissant la partie la plus amincie du col 4 a des dimensions de longueur, largeur (lcol ) et épaisseur ajustées pour éviter de créer un col trop élastique et/ou la présence de plusieurs axes de rotation virtuels.Whatever the variant used, the part of the hollow 5 defining the thinnest part of the neck 4 has dimensions of length, width ( l neck ) and thickness adjusted to avoid creating an overly elastic neck and / or the presence of several virtual axes of rotation.

En ce qui concerne le procédé précédemment décrit de fabrication d'un organe de guidage flexible selon l'invention, il est clair que l'homme du métier sera à même d'adapter la forme du substrat de départ ainsi que la forme du creux à usiner lors de l'étape b) en fonction de la forme désirée.With regard to the previously described method of manufacturing a flexible guide member according to the invention, it is clear that a person skilled in the art will be able to adapt the shape of the starting substrate as well as the shape of the hollow to machine during step b) according to the desired shape.

Lorsque les organes de guidages flexibles selon l'invention sont agencés en série, ils peuvent, comme illustré aux figures 4, 5a et 5b être orientés dans le même sens. Alternativement, ils peuvent également être orientés tête-bêche, comme illustré aux figures 11a et 11b. En variante, le corps 22 de l'ancre d'échappement du dispositif 20 pourrait être remplacé par tout ou partie des composants suivants : une bascule, un cliquet, un sautoir, un oscillateur ou un marteau d'horlogerie.When the flexible guide members according to the invention are arranged in series, they can, as illustrated in figures 4 , 5a and 5b be oriented in the same direction. Alternatively, they can also be turned upside down, as illustrated in Figures 11a and 11b . Alternatively, the body 22 of the escape anchor of the device 20 could be replaced by all or part of the following components: a rocker, a pawl, a jumper, an oscillator or a clockwork hammer.

En variante, le cadre mobile 31 du dispositif 30 pourrait être remplacé par tout ou partie des composants suivants : une ancre d'échappement, une bascule, un cliquet, un sautoir ou un oscillateur.Alternatively, the movable frame 31 of the device 30 could be replaced by all or part of the following components: an escape anchor, a rocker, a pawl, a jumper or an oscillator.

Un organe de guidage flexible selon l'invention peut typiquement être utilisé en remplacement d'un organe de guidage en rotation dans n'importe quel composant, typiquement horloger, guidé en rotation, typiquement sur une plage angulaire inférieure à 45°, de préférence inférieure à 25°, de préférence inférieure à 10°, de préférence encore inférieure à 2°.A flexible guide member according to the invention can typically be used to replace a guide member in rotation in any component, typically watchmaker, guided in rotation, typically over an angular range less than 45 °, preferably less at 25 °, preferably less than 10 °, more preferably less than 2 °.

Des dispositifs de guidage en translation utilisant plusieurs organes de guidage flexibles selon l'invention peuvent typiquement être utilisés en remplacement d'un dispositif de guidage en translation dans n'importe quel composant, typiquement horloger, comprenant un dispositif de guidage en translation.Translation guide devices using several flexible guide members according to the invention can typically be used to replace a translation guide device in any component, typically a watchmaker, comprising a translation guide device.

Pour la réalisation de tels dispositifs de guidage en translation, au moins deux ensembles comprenant chacun un premier et un second organes de guidage flexibles selon l'invention sont agencés en série, les premières parties rigides des premiers organes flexibles de chacun desdits au moins deux ensembles étant solidaires entre elles et les secondes parties rigides des seconds organes flexibles de chacun desdits au moins deux ensembles étant solidaires entre elles.For the production of such translational guidance devices, at least two sets each comprising a first and a second flexible guide members according to the invention are arranged in series, the first rigid parts of the first flexible members of each of said at least two sets being integral with each other and the second rigid parts of the second flexible members of each of said at least two assemblies being integral with each other.

Claims (14)

Organe de guidage flexible (1) s'étendant longitudinalement selon un axe x et comprenant une première (2) et une seconde (3) parties rigides reliées par un col (4) déformable élastiquement, lesdites première (2) et seconde (3) parties rigides étant aptes à pivoter l'une par rapport à l'autre autour d'un axe de rotation virtuel (100) perpendiculaire à l'axe x par déformation élastique dudit col (4), ledit organe de guidage flexible (1) étant caractérisé en ce que ledit col (4) est défini par un seul creux (5).Flexible guide member (1) extending longitudinally along an x axis and comprising a first (2) and a second (3) rigid parts connected by an elastically deformable neck (4), said first (2) and second (3) rigid parts being able to pivot with respect to each other about a virtual axis of rotation (100) perpendicular to the x axis by elastic deformation of said neck (4), said flexible guide member (1) being characterized in that said neck (4) is defined by a single recess (5). Organe de guidage flexible selon la revendication 1, caractérisé en ce que, dans chaque plan de coupe dudit organe (1) perpendiculaire à l'axe de rotation virtuel (100), le col (4) est défini par une courbe concave correspondant à une coupe longitudinale dudit creux (5) et par un segment de droite situé en regard de cette courbe.Flexible guide member according to claim 1, characterized in that , in each cutting plane of said member (1) perpendicular to the virtual axis of rotation (100), the neck (4) is defined by a concave curve corresponding to a longitudinal section of said hollow (5) and by a straight line located opposite this curve. Organe de guidage flexible (1) selon la revendication 1 ou 2 caractérisé en ce qu'il comprend une première surface (F1) plane et parallèle à l'axe x et à l'axe de rotation virtuel (100) et une seconde surface (F2) en regard de ladite première surface (F1), en ce que la première surface (F1) comprend une première surface (F1-2) de la première partie rigide (2), une première surface (F1-3) de la seconde partie rigide (3) et une surface délimitant le col (4) et en ce que la seconde surface (F2) comprend une seconde surface (F2-2) de la première partie rigide (2), une seconde surface (F2-3) de la seconde partie rigide (3) ainsi que la surface dudit creux (5).Flexible guide member (1) according to Claim 1 or 2, characterized in that it comprises a first plane surface (F1) parallel to the x axis and to the virtual axis of rotation (100) and a second surface ( F2) opposite said first surface (F1), in that the first surface (F1) comprises a first surface (F 1-2 ) of the first rigid part (2), a first surface (F 1-3 ) of the second rigid part (3) and a surface delimiting the neck (4) and in that the second surface (F2) comprises a second surface (F 2-2 ) of the first rigid part (2), a second surface (F 2-3 ) of the second rigid part (3) as well as the surface of said hollow (5). Organe de guidage flexible (1) selon la revendication 3, caractérisé en ce que lesdites seconde surface (F2-2) de la première partie rigide (2) et seconde surface (F2-3) de la seconde partie rigide (3) sont planes.Flexible guide member (1) according to claim 3, characterized in that said second surface (F 2-2 ) of the first rigid part (2) and second surface (F 2-3 ) of the second rigid part (3) are flat. Organe de guidage flexible (1) selon l'une des revendications précédentes, caractérisé en ce que le creux (5) prend, au moins en partie, la forme de la surface latérale d'un demi-cylindre de révolution d'axe parallèle à l'axe de rotation virtuel (100).Flexible guide member (1) according to one of the preceding claims, characterized in that the recess (5) takes, at least in part, the shape of the lateral surface of a half-cylinder of revolution with an axis parallel to the virtual axis of rotation (100). Dispositif (20 ; 30) comprenant un composant (22 ; 31), notamment horloger, au moins un organe de guidage flexible (1 ; 41 ; 42 ; 51 ; 52) selon l'une des revendications 1 à 5 et un support (21 ; 36), ledit au moins un organe de guidage flexible (1 ; 41 ; 42 ; 51 ; 52) étant apte à guider les mouvements dudit composant (22 ; 31) par rapport audit support (21 ; 36).Device (20; 30) comprising a component (22; 31), in particular a watchmaker, at least one flexible guide member (1; 41; 42; 51; 52) according to one of claims 1 to 5 and a support (21 ; 36), said at least one flexible guide member (1; 41; 42; 51; 52) being capable of guiding the movements of said component (22; 31) relative to said support (21; 36). Dispositif selon la revendication 6, caractérisé en ce qu'il est monolithique.Device according to claim 6, characterized in that it is monolithic. Dispositif selon la revendication 6 ou 7, caractérisé en ce que ledit au moins un organe de guidage flexible (1) guide ledit composant (22) par rapport au support (21) essentiellement en rotation.Device according to claim 6 or 7, characterized in that said at least one flexible guide member (1) guides said component (22) relative to the support (21) essentially in rotation. Dispositif selon l'une des revendications 6 à 8, caractérisé en ce qu'il comprend au moins deux organes de guidage flexible (41, 42 ; 51, 52) agencés en série.Device according to one of Claims 6 to 8, characterized in that it comprises at least two flexible guide members (41, 42; 51, 52) arranged in series. Dispositif selon la revendication 9, caractérisé en ce que lesdits au moins deux organes de guidage flexible (41, 42 ; 51, 52) sont orientés tête-bêche.Device according to claim 9, characterized in that said at least two flexible guide members (41, 42; 51, 52) are oriented head to tail. Dispositif selon la revendication 9 ou 10, caractérisé en ce qu'il comprend au moins deux ensembles (40, 50) comprenant chacun deux organes de guidage flexible (41, 42, 51, 52) selon l'une des revendications 1 à 5 agencés en série, lesdits ensembles (40, 50) étant agencés en parallèle.Device according to claim 9 or 10, characterized in that it comprises at least two assemblies (40, 50) each comprising two flexible guide members (41, 42, 51, 52) according to one of claims 1 to 5 arranged in series, said assemblies (40, 50) being arranged in parallel. Dispositif selon la revendication 11, caractérisé en ce lesdits au moins deux ensembles (40, 50) guident le composant (31) par rapport au support (36) essentiellement en translation.Device according to claim 11, characterized in that said at least two assemblies (40, 50) guide the component (31) relative to the support (36) essentially in translation. Dispositif selon l'une des revendications 6 à 12 caractérisé en ce que ledit composant comprend tout ou partie des composants suivants : une ancre d'échappement, une bascule, un cliquet, un sautoir, un oscillateur, un marteau d'horlogerie.Device according to one of claims 6 to 12 characterized in that said component comprises all or part of the following components: an escape anchor, a rocker, a pawl, a jumper, an oscillator, a clockwork hammer. Pièce d'horlogerie telle qu'une montre bracelet, une montre de poche, une pendule ou une pendulette comprenant un dispositif selon l'une des revendications 6 à 13.Timepiece such as a wristwatch, a pocket watch, a pendulum or a pendulum comprising a device according to one of claims 6 to 13.
EP18202244.2A 2018-10-24 2018-10-24 Flexible guide member Pending EP3644129A1 (en)

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Citations (4)

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Publication number Priority date Publication date Assignee Title
JPH0773483A (en) * 1993-08-31 1995-03-17 Nec Corp Device for driving objective lens for optical disk
WO2014189463A1 (en) * 2013-05-22 2014-11-27 Ismail Mohamed Sirajudeen Mohamed A mechanism for effecting a displacement output
CH712958A2 (en) * 2016-09-27 2018-03-29 Csem Ct Suisse Delectronique Microtechnique Sa Rech Developpement Oscillating element and mechanical clock oscillator comprising such an oscillating element.
CH713288A1 (en) * 2016-12-23 2018-06-29 Sa De La Manufacture Dhorlogerie Audemars Piguet & Cie Flexible monolithic component for timepiece.

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0773483A (en) * 1993-08-31 1995-03-17 Nec Corp Device for driving objective lens for optical disk
WO2014189463A1 (en) * 2013-05-22 2014-11-27 Ismail Mohamed Sirajudeen Mohamed A mechanism for effecting a displacement output
CH712958A2 (en) * 2016-09-27 2018-03-29 Csem Ct Suisse Delectronique Microtechnique Sa Rech Developpement Oscillating element and mechanical clock oscillator comprising such an oscillating element.
CH713288A1 (en) * 2016-12-23 2018-06-29 Sa De La Manufacture Dhorlogerie Audemars Piguet & Cie Flexible monolithic component for timepiece.

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RENYI YANG ET AL: "Design and characterization of a low-profile micropositioning stage", PRECISION ENGINEERING, 1 January 1996 (1996-01-01), pages 20 - 29, XP055574984, Retrieved from the Internet <URL:https://www.sciencedirect.com/science/article/pii/0141635995000321> [retrieved on 20190327], DOI: 10.1016/0141-6359(95)00032-1 *
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