EP3779608A1 - Elastic holding member for a timepiece component on a support element - Google Patents

Elastic holding member for a timepiece component on a support element Download PDF

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Publication number
EP3779608A1
EP3779608A1 EP19192159.2A EP19192159A EP3779608A1 EP 3779608 A1 EP3779608 A1 EP 3779608A1 EP 19192159 A EP19192159 A EP 19192159A EP 3779608 A1 EP3779608 A1 EP 3779608A1
Authority
EP
European Patent Office
Prior art keywords
support element
timepiece
assembly
arms
retaining member
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
EP19192159.2A
Other languages
German (de)
French (fr)
Inventor
Romain Le Moal
Frédéric Vaucher
Pierre Cusin
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.)
Nivarox Far SA
Nivarox SA
Original Assignee
Nivarox Far SA
Nivarox SA
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 Nivarox Far SA, Nivarox SA filed Critical Nivarox Far SA
Priority to EP19192159.2A priority Critical patent/EP3779608A1/en
Priority to US16/904,655 priority patent/US11573533B2/en
Priority to JP2020109325A priority patent/JP2021032878A/en
Priority to RU2020122431A priority patent/RU2769231C2/en
Priority to KR1020200089099A priority patent/KR20210021264A/en
Priority to CN202010818622.0A priority patent/CN112394627A/en
Publication of EP3779608A1 publication Critical patent/EP3779608A1/en
Priority to KR1020220164909A priority patent/KR20220163341A/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
    • G04B1/00—Driving mechanisms
    • 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
    • G04B29/00—Frameworks
    • G04B29/04—Connecting or supporting parts
    • 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
    • G04B17/32—Component parts or constructional details, e.g. collet, stud, virole or piton
    • G—PHYSICS
    • G04—HOROLOGY
    • G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
    • G04B13/00—Gearwork
    • G04B13/02—Wheels; Pinions; Spindles; Pivots
    • G—PHYSICS
    • G04—HOROLOGY
    • G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
    • G04B13/00—Gearwork
    • G04B13/02—Wheels; Pinions; Spindles; Pivots
    • G04B13/021—Wheels; Pinions; Spindles; Pivots elastic fitting with a spindle, axis or shaft
    • 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
    • G04B17/06—Oscillators with hairsprings, e.g. balance
    • G04B17/063—Balance construction
    • G—PHYSICS
    • G04—HOROLOGY
    • G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
    • G04B5/00—Automatic winding up
    • 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
    • G04B15/14—Component parts or constructional details, e.g. construction of the lever or the escape wheel

Definitions

  • the invention relates to a member for resiliently holding a timepiece component on a support member.
  • the invention also relates to an elastic holding member - timepiece component assembly and to an assembly comprising such an assembly and this support element.
  • the invention relates to a timepiece movement comprising this assembly as well as to a timepiece comprising such a movement.
  • elastic retaining members such as watch ferrules, generally made of so-called fragile materials such as silicon which participate in assemblies of balance springs on balance shafts of members. of regulation such as resonators of clockwork movements and this, by a coupling of the elastic clamping type produced from a coupling system comprising deformable arms such as elastic blades which are conventionally biased in bending.
  • the aim of the invention is to provide an alternative to the existing holding members.
  • the invention relates to an elastic retaining member for fixing a timepiece component to a support element, comprising a rigid portion comprising an inner face comprising at least three deformable arms provided with free ends defining a opening into which said support element is capable of being inserted, the arms being configured to produce a coupling with the support element by elastic clamping in compression of this support element in the opening.
  • the invention also relates to an elastic retaining member - timepiece component assembly for a timepiece movement of a timepiece comprising such a retaining member.
  • the invention also relates to an assembly for a timepiece movement of a timepiece comprising an elastic retaining member - timepiece component assembly and a support element, said assembly being coupled by elastic clamping in compression with the 'support element.
  • the invention also relates to a timepiece movement comprising at least one such assembly.
  • the invention also relates to a timepiece comprising such a timepiece movement.
  • the figures 1 to 5 present different variants of the elastic retaining member 1a, 1b, 1c for fixing a timepiece component 2 on a support element 3.
  • the elastic retaining member 1a, 1b, 1c may be a ring or else a ferrule or any parts suitable for securing the timepiece component 2 such as a balance spring or even a wheel, to a support element 3 such as a shaft.
  • This elastic retaining member 1a, 1b, 1c is made of a so-called “fragile” material, preferably a micromachinable material. Such material may include silicon, quartz, corundum, silicon and silicon dioxide, DLC, metallic glass, ceramic, other at least partially amorphous material, or the like.
  • this retaining member 1a, 1b, 1c can be included in an assembly 120 elastic retaining member - timepiece component.
  • Such an assembly 120 is intended to be arranged in a timepiece movement 110 of a timepiece 100 visible on the figure 3 , and also intended to be mounted on a support element 3.
  • Such an assembly 120 can be a single piece and be made of a “fragile” material similar to that of the holding member 1. It will be noted that in a variant of this assembly 120, only the elastic retaining member 1a, 1b, 1c can be made of such a so-called “fragile” material, the timepiece component 2 then being made of another material.
  • This assembly 120 can form part of an assembly 130 for the watch movement 110.
  • Such an assembly 130 has been devised here for applications in the watchmaking field.
  • this assembly 130 can perfectly well be implemented in other fields such as aeronautics, jewelry, or even the automobile.
  • Such a holding member 1a, 1b, 1c is preferably a single piece which comprises an upper face and a lower face which are preferably planar, which are both respectively included in first and second planes P1 and P2.
  • This member 1a, 1b, 1c also has a thickness which extends from the upper face to the lower face.
  • Such a retaining member 1a, 1b, 1c also comprises a rigid portion 7 provided with an inner face 6. This rigid portion 7 corresponds to the part of the retaining member 1a, 1b, 1c which comprises the largest volume. of matter.
  • the retaining member 1a, 1b, 1c may also include an outer face or outer peripheral wall, in particular when it is a ferrule which is in particular intended to be connected to the timepiece component 2 by means of at least one attachment point arranged in this outer face.
  • the holding member 1 may be integral with the timepiece component 2 when the latter is a wheel visible on the figures 1 and 2 .
  • this retaining member 1a, 1b, 1c the inner face 6 participates in defining a volume 5 in which are arranged at least three deformable arms 4 provided with free ends 9.
  • this member 1a, 1b , 1c comprises six arms 4 shown on the figures 1 and 2 . It will be noted that this volume 5 is only partially occupied by these deformable arms 4. Such arms 4 are included in the inner face 6 and extend radially from this face 6 towards a central axis A of said holding member 1a, 1b. , 1 C.
  • these deformable arms 4 consist essentially of a main part 8 full / non-perforated, comprising a quantity of material which decreases regularly in a direction extending from this inner face 6 towards the central axis A.
  • the deformable arms 4 consist essentially of a main part 8 perforated, with a perforation 14 more important in the third variant than that 13 of the second variant.
  • the quantity of material also decreases regularly in a direction extending from this inner face 6 towards the central axis A.
  • the quantity of material in the main part 8 of each arm 4 of the third variant is less than that of each arm 4 of the second and even less than that of each arm 4 of the first variant.
  • each of these arms 4 preferably has an essentially trapezoidal shape.
  • These deformable arms 4 each comprise two ends, a first end connected to the inner face 6 of the retaining member 1a, 1b, 1c and a second end which is the free end 9 visible on the figure 1 .
  • This free end 9 comprises a contact face 10 having a shape configured / adapted to cooperate with a mounting zone of the support element 3 intended to cooperate with this contact face 10.
  • the contact face 10 has a compatible shape able to match this cylindrical shape by being for example a curved contact face 10.
  • the free ends 9 of these arms 4 together define an opening 12 into which said support element 3 can be inserted.
  • This opening 12 defines a volume in the holding member 1a, 1b, 1c which is smaller than that of the mounting zone included in one end of the support element 3 which is intended to be arranged there.
  • the mounting zone of the support element 3 comprises all or part of the contact portions 13 of this support element 3 with the holding member 1a, 1b, 1c which are defined on a peripheral wall of this support element 3 and which are intended in particular to cooperate with the arms 4 of this retaining member 1a, 1b, 1c.
  • this support element 3 comprises at least as many portions 10 as the holding member 1a, 1b, 1c comprises arms 4.
  • each arm 4 is able to be deformed in compression, that is to say radially relative to the central axis A of the retaining member which coincides with that of the axis of the opening 5.
  • each of these arms 4 when subjected to a stress induced by the support element 3 as will be seen subsequently, is capable of being deformed by passing from a rest configuration to a constrained configuration.
  • the arrangement of the deformable arms 4 in the holding member 1a, 1b, 1c allows, during insertion with clamping, a deformation of each arm 4 making it possible to accommodate the deformation of the holding member 1a, 1b , 1c with the geometry of the mounting area of the support element 3.
  • this mounting area which comprises the contact portions 13 of this support element 3 is preferably arranged coaxially with the opening 12 and this, around the central axis A which is common to this mounting zone and to this opening 12 of the 'retaining member 1. Such an arrangement around this common axis A participates in an indexing of this mounting zone relative to the opening 12 during this insertion.
  • Such a deformation contributes in particular to the holding member 1a, 1b, 1c to store a large quantity of elastic energy which contributes to giving it a substantial holding torque, in particular allowing optimum holding by elastic clamping in compression.
  • an elastic member 1a, 1b, 1c allows the clamping force to be increased significantly in comparison with the elastic members of the state of the art, in fact this clamping force is here approximately twice as large as that of the components of the state of the art for the same configuration.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Adornments (AREA)
  • Clamps And Clips (AREA)
  • Prostheses (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Metallurgy (AREA)
  • Micromachines (AREA)

Abstract

L'invention concerne un organe de maintien élastique (1) pour la fixation d'un composant d'horlogerie (2) sur un élément de support (3), comportant une portion rigide (7) pourvue d'une face intérieure (6) comprenant au moins trois bras déformables (4) pourvus d'extrémités libres (9) définissant une ouverture (12) dans laquelle est susceptible d'être inséré ledit élément de support (3), les bras (4) étant configuré pour réaliser un accouplement avec l'élément de support (3) par un serrage élastique en compression de cet élément de support (3) dans l'ouverture (12).The invention relates to an elastic retaining member (1) for fixing a timepiece component (2) to a support element (3), comprising a rigid portion (7) provided with an inner face (6). comprising at least three deformable arms (4) provided with free ends (9) defining an opening (12) in which said support element (3) can be inserted, the arms (4) being configured to provide a coupling with the support element (3) by elastic clamping in compression of this support element (3) in the opening (12).

Description

Domaine techniqueTechnical area

L'invention porte sur un organe de maintien élastique d'un composant d'horlogerie sur un élément de support.The invention relates to a member for resiliently holding a timepiece component on a support member.

L'invention porte aussi sur un ensemble organe de maintien élastique - composant d'horlogerie et un assemblage comprenant un tel ensemble et cet élément de support.The invention also relates to an elastic holding member - timepiece component assembly and to an assembly comprising such an assembly and this support element.

L'invention porte enfin sur un mouvement d'horlogerie comprenant cet assemblage ainsi que sur une pièce d'horlogerie comprenant un tel mouvement.Finally, the invention relates to a timepiece movement comprising this assembly as well as to a timepiece comprising such a movement.

Arrière-plan technologiqueTechnological background

Dans l'état de la technique, on connait des organes de maintien élastique, tels que des viroles d'horlogerie, réalisés généralement en des matériaux dits fragiles tels que le silicium qui participent à des assemblages de spiraux sur des arbres de balancier d'organes de régulation tels que des résonateurs de mouvements d'horlogerie et ce, par un accouplement du type serrage élastique réalisé à partir d'un système d'accouplement comprenant des bras déformables tels que des lames élastiques qui sont sollicités classiquement en flexion.In the state of the art, elastic retaining members are known, such as watch ferrules, generally made of so-called fragile materials such as silicon which participate in assemblies of balance springs on balance shafts of members. of regulation such as resonators of clockwork movements and this, by a coupling of the elastic clamping type produced from a coupling system comprising deformable arms such as elastic blades which are conventionally biased in bending.

Toutefois, un des inconvénients majeurs de ces organes de maintien est lié au fait que le système d'accouplement qu'ils mettent en oeuvre ne permet d'obtenir qu'une faible force de serrage élastique dans les encombrements donnés du fait que la contrainte limite de rupture de la matière constituant ces organes de maintien est souvent atteinte rapidement.However, one of the major drawbacks of these retaining members is linked to the fact that the coupling system which they use only makes it possible to obtain a low elastic clamping force in the given dimensions due to the fact that the limiting stress rupture of the material constituting these retaining members is often reached quickly.

Le but de l'invention est de proposer une alternative aux organes de maintien existants.The aim of the invention is to provide an alternative to the existing holding members.

Résumé de l'inventionSummary of the invention

Dans ce dessein, l'invention concerne un organe de maintien élastique pour la fixation d'un composant d'horlogerie sur un élément de support, comportant une portion rigide comprenant une face intérieure comprenant au moins trois bras déformables pourvus d'extrémités libres définissant une ouverture dans laquelle est susceptible d'être inséré ledit élément de support, les bras étant configuré pour réaliser un accouplement avec l'élément de support par un serrage élastique en compression de cet élément de support dans l'ouverture.With this in mind, the invention relates to an elastic retaining member for fixing a timepiece component to a support element, comprising a rigid portion comprising an inner face comprising at least three deformable arms provided with free ends defining a opening into which said support element is capable of being inserted, the arms being configured to produce a coupling with the support element by elastic clamping in compression of this support element in the opening.

Ainsi de telles caractéristiques participent à l'obtention d'un organe de maintien apte à réaliser un accouplement par serrage élastique en compression qui est élevé et ce, sans dépasser la contrainte limite de rupture de la matière constituant cet organe de maintien.Thus, such characteristics participate in obtaining a retaining member capable of producing a coupling by elastic clamping in compression which is high, without exceeding the ultimate breaking stress of the material constituting this retaining member.

Dans d'autres modes de réalisation :

  • chaque bras déformable s'étend radialement de la face intérieure vers un axe central dudit organe ;
  • les bras déformables sont constitués essentiellement d'une partie principale comportant une quantité de matière qui décroit régulièrement d'une direction allant de cette face intérieure vers l'axe centrale ;
  • chaque bras présente une forme essentiellement trapézoïdale ;
  • la face intérieure définie un volume dans ledit organe partiellement occupé par les bras déformables ;
  • l'extrémité libre de chaque bras déformable comprend une face de contact ayant une forme configurée pour coopérer avec une zone de montage de l'élément de support ;
  • l'organe comprend six bras déformables ;
  • l'organe est fabriqué en une matière fragile notamment une matière micro-usinable.
In other embodiments:
  • each deformable arm extends radially from the inner face towards a central axis of said member;
  • the deformable arms consist essentially of a main part comprising a quantity of material which decreases regularly in a direction going from this inner face towards the central axis;
  • each arm has an essentially trapezoidal shape;
  • the inner face defines a volume in said member partially occupied by the deformable arms;
  • the free end of each deformable arm comprises a contact face having a shape configured to cooperate with a mounting zone of the support element;
  • the member comprises six deformable arms;
  • the member is made of a fragile material, in particular a micro-machinable material.

L'invention concerne aussi un ensemble organe de maintien élastique - composant d'horlogerie pour un mouvement d'horlogerie d'une pièce d'horlogerie comprenant un tel organe de maintien.The invention also relates to an elastic retaining member - timepiece component assembly for a timepiece movement of a timepiece comprising such a retaining member.

L'invention concerne également un assemblage pour un mouvement d'horlogerie d'une pièce d'horlogerie comprenant un ensemble organe de maintien élastique - composant d'horlogerie et un élément de support, ledit ensemble étant accouplé par un serrage élastique en compression avec l'élément de support.The invention also relates to an assembly for a timepiece movement of a timepiece comprising an elastic retaining member - timepiece component assembly and a support element, said assembly being coupled by elastic clamping in compression with the 'support element.

L'invention concerne aussi un mouvement d'horlogerie comprenant au moins un tel assemblage.The invention also relates to a timepiece movement comprising at least one such assembly.

L'invention concerne aussi une pièce d'horlogerie comprenant un tel mouvement d'horlogerie.The invention also relates to a timepiece comprising such a timepiece movement.

Brève description des figuresBrief description of the figures

L'invention sera décrite ci-après de manière plus détaillée à l'aide des dessins annexés, donnés à titre d'exemples nullement limitatifs, dans lesquels :

  • la figure 1 représente une vue en coupe d'une première variante de l'organe de maintien dans une configuration de repos, selon un mode de réalisation de l'invention ;
  • la figure 2 représente une vue en coupe de la première variante de l'organe de maintien dans une configuration de contrainte, monté sur un élément de support, selon le mode de réalisation de l'invention ;
  • la figure 3 représente une vue en coupe d'une deuxième variante de l'organe de maintien dans une configuration de repos, selon le mode de réalisation de l'invention ;
  • la figure 4 représente une vue en coupe d'une troisième variante de l'organe de maintien dans une configuration de repos, selon le mode de réalisation de l'invention, et
  • la figure 5 est une vue schématique d'une pièce d'horlogerie comprenant l'assemblage comportant l'ensemble organe de maintien élastique - composant d'horlogerie accouplé à l'élément de support, selon le mode de réalisation de l'invention.
The invention will be described below in more detail with the aid of the appended drawings, given by way of non-limiting examples, in which:
  • the figure 1 shows a sectional view of a first variant of the holding member in a rest configuration, according to one embodiment of the invention;
  • the figure 2 shows a sectional view of the first variant of the holding member in a constrained configuration, mounted on a support element, according to the embodiment of the invention;
  • the figure 3 shows a sectional view of a second variant of the holding member in a rest configuration, according to the embodiment of the invention;
  • the figure 4 shows a sectional view of a third variant of the holding member in a rest configuration, according to the embodiment of the invention, and
  • the figure 5 is a schematic view of a timepiece comprising the assembly comprising the elastic holding member - timepiece component assembly coupled to the support element, according to the embodiment of the invention.

Description détaillée de l'inventionDetailed description of the invention

Les figures 1 à 5 présentent différentes variantes de l'organe de maintien élastique 1a, 1b, 1c pour la fixation d'un composant d'horlogerie 2 sur un élément de support 3. À titre d'exemple, l'organe de maintien élastique 1a, 1b, 1c peut être une bague ou encore une virole ou toutes pièces aptes à assurer la fixation du composant d'horlogerie 2 tel qu'un spiral ou encore une roue, à un élément de support 3 tel qu'un arbre. Cet organe de maintien élastique 1a, 1b, 1c est réalisé en une matière dite « fragile » de préférence une matière micro-usinable. Une telle matière peut comprendre du silicium, du quartz, du corindon, du silicium et du dioxyde de silicium, DLC, verre métallique, de la céramique, autre matériau au moins partiellement amorphe, ou similaire.The figures 1 to 5 present different variants of the elastic retaining member 1a, 1b, 1c for fixing a timepiece component 2 on a support element 3. By way of example, the elastic retaining member 1a, 1b, 1c may be a ring or else a ferrule or any parts suitable for securing the timepiece component 2 such as a balance spring or even a wheel, to a support element 3 such as a shaft. This elastic retaining member 1a, 1b, 1c is made of a so-called “fragile” material, preferably a micromachinable material. Such material may include silicon, quartz, corundum, silicon and silicon dioxide, DLC, metallic glass, ceramic, other at least partially amorphous material, or the like.

Dans ce mode de réalisation, cet organe de maintien 1a, 1b, 1c peut être compris dans un ensemble 120 organe de maintien élastique - composant d'horlogerie. Un tel ensemble 120 est prévu pour être agencé dans un mouvement d'horlogerie 110 d'une pièce d'horlogerie 100 visible sur la figure 3, et également prévu pour être monté sur un élément de support 3. Un tel ensemble 120 peut être une pièce monobloc et être réalisé dans une matière « fragile » similaire à celle de l'organe de maintien 1. On notera que dans une variante de cet ensemble 120, seul l'organe de maintien élastique 1a, 1b, 1c peut être réalisé en une telle matière dite « fragile », le composant d'horlogerie 2 étant alors fabriqué en une autre matière.In this embodiment, this retaining member 1a, 1b, 1c can be included in an assembly 120 elastic retaining member - timepiece component. Such an assembly 120 is intended to be arranged in a timepiece movement 110 of a timepiece 100 visible on the figure 3 , and also intended to be mounted on a support element 3. Such an assembly 120 can be a single piece and be made of a “fragile” material similar to that of the holding member 1. It will be noted that in a variant of this assembly 120, only the elastic retaining member 1a, 1b, 1c can be made of such a so-called “fragile” material, the timepiece component 2 then being made of another material.

Cet ensemble 120 peut faire partie d'un assemblage 130 pour le mouvement horlogerie 110. Un tel assemblage 130 a ici été imaginé pour des applications dans le domaine horloger. Toutefois, cet assemblage 130 peut parfaitement être mis en oeuvre dans d'autres domaines tels que l'aéronautique, la bijouterie, ou encore l'automobile.This assembly 120 can form part of an assembly 130 for the watch movement 110. Such an assembly 130 has been devised here for applications in the watchmaking field. However, this assembly 130 can perfectly well be implemented in other fields such as aeronautics, jewelry, or even the automobile.

Un tel organe de maintien 1a, 1b, 1c est de préférence une pièce monobloc qui comprend une face supérieure et une face inférieure de préférence planes qui sont toutes deux comprises respectivement dans des premier et deuxième plans P1 et P2. Cet organe 1a, 1b, 1c présente aussi une épaisseur qui s'étend de la face supérieure à la face inférieure. Un tel organe de maintien 1a, 1b, 1c comprend également une portion rigide 7 pourvue d'une face intérieure 6. Cette portion rigide 7 correspond à la partie de l'organe de maintien 1a, 1b, 1c qui comprend le volume le plus important de matière. L'organe de maintien 1a, 1b, 1c peut aussi comprendre une face extérieure ou paroi périphérique externe notamment lorsqu'il s'agit d'une virole qui est notamment destinée à être reliée au composant d'horlogerie 2 par l'intermédiaire d'au moins un point d'attache agencé dans cette face extérieure. Dans une variante une telle face extérieure, et donc l'organe de maintien 1, peut être venue de matière avec le composant d'horlogerie 2 lorsque ce dernier est une roue visible sur les figures 1 et 2.Such a holding member 1a, 1b, 1c is preferably a single piece which comprises an upper face and a lower face which are preferably planar, which are both respectively included in first and second planes P1 and P2. This member 1a, 1b, 1c also has a thickness which extends from the upper face to the lower face. Such a retaining member 1a, 1b, 1c also comprises a rigid portion 7 provided with an inner face 6. This rigid portion 7 corresponds to the part of the retaining member 1a, 1b, 1c which comprises the largest volume. of matter. The retaining member 1a, 1b, 1c may also include an outer face or outer peripheral wall, in particular when it is a ferrule which is in particular intended to be connected to the timepiece component 2 by means of at least one attachment point arranged in this outer face. In a variant such an outer face, and therefore the holding member 1, may be integral with the timepiece component 2 when the latter is a wheel visible on the figures 1 and 2 .

Dans cette organe de maintien 1a, 1b, 1c, la face intérieure 6 participe à définir un volume 5 dans lequel sont agencés au moins trois bras déformables 4 pourvus d'extrémités libres 9. Dans le présent mode de réalisation, cet organe 1a, 1b, 1c comprend six bras 4 représentés sur les figures 1 et 2. On remarquera que ce volume 5 n'est que partiellement occupé par ces bras déformables 4. De tels bras 4 sont compris dans la face intérieure 6 et s'étendent radialement de cette face 6 vers un axe central A dudit organe de maintien 1a, 1b, 1c. Dans la première variante illustrée sur les figures 1 et 2, ces bras déformables 4 sont constitués essentiellement d'une partie principale 8 pleine/non-ajourée, comportant une quantité de matière qui décroit régulièrement selon une direction s'étendant de cette face intérieure 6 vers l'axe central A. Dans les deuxième et troisième variantes visibles sur les figures 3 et 4, les bras déformables 4 sont constitués essentiellement d'une partie principale 8 ajourée, avec un ajourage 14 plus important dans la troisième variante que celui 13 de la deuxième variante. Dans ces deuxième et troisième variantes, la quantité de matière décroit aussi régulièrement selon une direction s'étendant de cette face intérieure 6 vers l'axe central A. En complément, on comprend donc que la quantité de matière dans la partie principale 8 de chaque bras 4 de la troisième variante est moindre que dans celle de chaque bras 4 de la deuxième et encore moindre que dans celle de chaque bras 4 de la première variante.In this retaining member 1a, 1b, 1c, the inner face 6 participates in defining a volume 5 in which are arranged at least three deformable arms 4 provided with free ends 9. In this embodiment, this member 1a, 1b , 1c comprises six arms 4 shown on the figures 1 and 2 . It will be noted that this volume 5 is only partially occupied by these deformable arms 4. Such arms 4 are included in the inner face 6 and extend radially from this face 6 towards a central axis A of said holding member 1a, 1b. , 1 C. In the first variant illustrated on figures 1 and 2 , these deformable arms 4 consist essentially of a main part 8 full / non-perforated, comprising a quantity of material which decreases regularly in a direction extending from this inner face 6 towards the central axis A. In the second and third variants visible on the figures 3 and 4 , the deformable arms 4 consist essentially of a main part 8 perforated, with a perforation 14 more important in the third variant than that 13 of the second variant. In these second and third variants, the quantity of material also decreases regularly in a direction extending from this inner face 6 towards the central axis A. In addition, it is therefore understood that the quantity of material in the main part 8 of each arm 4 of the third variant is less than that of each arm 4 of the second and even less than that of each arm 4 of the first variant.

On notera que chacun de ces bras 4 présente de préférence une forme essentiellement trapézoïdale.It will be noted that each of these arms 4 preferably has an essentially trapezoidal shape.

Ces bras déformables 4 comprennent chacun deux extrémités, une première extrémité reliée à la face intérieure 6 de l'organe de maintien 1a, 1 b, 1c et une deuxième extrémité qui est l'extrémité libre 9 visible sur la figure 1. Cette extrémité libre 9 comprend une face de contact 10 ayant une forme configurée/adaptée pour coopérer avec une zone de montage de l'élément de support 3 destinée à coopérer avec cette face de contact 10. A titre d'exemple dans ces variantes, lorsque cette zone de montage est définie sur une partie de forme cylindrique de l'élément de support 3 alors la face de contact 10 présente une forme compatible apte à épouser cette forme cylindrique en étant par exemple une face de contact courbée 10. Les extrémités libres 9 de ces bras 4 définissent ensemble une ouverture 12 dans laquelle est susceptible d'être inséré ledit élément de support 3. Cette ouverture 12 définit un volume dans l'organe de maintien 1a, 1b, 1c qui est inférieur à celui de la zone de montage comprise dans une extrémité de l'élément de support 3 qui est prévue pour y être agencée.These deformable arms 4 each comprise two ends, a first end connected to the inner face 6 of the retaining member 1a, 1b, 1c and a second end which is the free end 9 visible on the figure 1 . This free end 9 comprises a contact face 10 having a shape configured / adapted to cooperate with a mounting zone of the support element 3 intended to cooperate with this contact face 10. By way of example in these variants, when this mounting zone is defined on a part of cylindrical shape of the support element 3 then the contact face 10 has a compatible shape able to match this cylindrical shape by being for example a curved contact face 10. The free ends 9 of these arms 4 together define an opening 12 into which said support element 3 can be inserted. This opening 12 defines a volume in the holding member 1a, 1b, 1c which is smaller than that of the mounting zone included in one end of the support element 3 which is intended to be arranged there.

Dans ce contexte, la zone de montage de l'élément de support 3, comprend en tout ou partie des portions de contact 13 de cet élément de support 3 avec l'organe de maintien 1a, 1b, 1c qui sont définies sur une paroi périphérique de cet élément de support 3 et qui sont prévues notamment pour coopérer avec les bras 4 de cet organe de maintien 1a, 1b, 1c. On notera que cet élément de support 3 comprend au moins autant de portions 10 que l'organe de maintien 1a, 1b, 1c comprend de bras 4.In this context, the mounting zone of the support element 3 comprises all or part of the contact portions 13 of this support element 3 with the holding member 1a, 1b, 1c which are defined on a peripheral wall of this support element 3 and which are intended in particular to cooperate with the arms 4 of this retaining member 1a, 1b, 1c. It will be noted that this support element 3 comprises at least as many portions 10 as the holding member 1a, 1b, 1c comprises arms 4.

Dans cet organe de maintien 1, chaque bras 4 est apte à être déformé en compression c'est-à-dire radialement relativement à l'axe central A de l'organe de maintien qui est confondu avec celui de l'axe de l'ouverture 5. Autrement dit, chacun de ces bras 4 lorsqu'il est soumis à une contrainte induite par l'élément de support 3 comme on le verra par la suite, est apte à être déformé en passant d'une configuration de repos à une configuration de sous contrainte. Dans ce contexte, en passant de cette configuration de repos à la configuration sous contrainte, tout ou partie de ce bras 4 est alors comprimée radialement relativement à l'axe centrale A et ce, vers la face intérieure 6 de l'organe de maintien 1. De tels bras 4 exercent une force contre l'élément de support permettant ainsi d'assurer un accouplement par serrage élastique de l'élément de support 3 dans l'ouverture 12 en étant configuré pour être comprimé/déformé radialement relativement à l'axe central A de ladite ouverture 5.In this retaining member 1, each arm 4 is able to be deformed in compression, that is to say radially relative to the central axis A of the retaining member which coincides with that of the axis of the opening 5. In other words, each of these arms 4 when subjected to a stress induced by the support element 3 as will be seen subsequently, is capable of being deformed by passing from a rest configuration to a constrained configuration. In this context, by passing from this rest configuration to the constrained configuration, all or part of this arm 4 is then compressed radially relative to the central axis A and this, towards the inner face 6 of the holding member 1 Such arms 4 exert a force against the support element thus making it possible to provide a resilient clamping coupling of the support element 3 in the opening 12 while being configured to be compressed / deformed radially relative to the axis. central A of said opening 5.

On notera que la disposition des bras déformables 4 dans l'organe de maintien 1a, 1b, 1c permet lors d'une insertion avec serrage, une déformation de chaque bras 4 permettant d'accommoder la déformation de l'organe de maintien 1a, 1b, 1c avec la géométrie de la zone de montage de l'élément de support 3.It will be noted that the arrangement of the deformable arms 4 in the holding member 1a, 1b, 1c allows, during insertion with clamping, a deformation of each arm 4 making it possible to accommodate the deformation of the holding member 1a, 1b , 1c with the geometry of the mounting area of the support element 3.

Ainsi, lors du montage de cet organe de maintien 1a, 1b, 1c sur l'élément de support 3, une extrémité de cet élément de support 3 comprenant la zone de montage est alors insérée dans l'ouverture 12 définie dans l'organe de maintien 1. Dans ce contexte, cette zone de montage qui comprend les portions de contact 13 de cet élément de support 3, est de préférence agencée de manière coaxiale avec l'ouverture 12 et ce, autour de l'axe central A qui est commun à cette zone de montage et à cette ouverture 12 de l'organe de maintien 1. Un tel agencement autour de cette axe commun A participe à un indexage de cette zone de montage par rapport à l'ouverture 12 durant cette insertion. Plus précisément, lors de cette insertion, les faces de contact 10 subissent une déformation radiale donc les bras 4 subissent alors une déformation élastique sous l'effet de l'application sur les faces de contact 10 des bras 4 par les portions de contact 13 de la zone de montage de l'élément de support 3, d'une force de compression F illustrée sur la figure 2. Une telle force de compression F engendre une déformation élastique en compression de chaque bras 4 dans une direction radiale par rapport à l'axe central A et ce, vers la première extrémité du bras 4 reliée à la face intérieure 6 de l'organe de maintien 1a, 1b, 1c. Une telle déformation participe notamment à ce que l'organe de maintien 1a, 1b, 1c emmagasine une quantité importante d'énergie élastique qui contribue à lui conférer un couple de tenue conséquent autorisant notamment une tenue optimale par serrage élastique en compression. On notera de plus, qu'un tel organe élastique 1a, 1b, 1c permet d'augmenter de manière conséquente la force de serrage en comparaison avec les organes élastiques de l'état de la technique, en effet cette force de serrage est ici environ deux fois plus importante que celle des organes de l'état de la technique pour une même configuration.Thus, when mounting this retaining member 1a, 1b, 1c on the support element 3, one end of this support element 3 comprising the mounting zone is then inserted into the opening 12 defined in the support member. hold 1. In this context, this mounting area which comprises the contact portions 13 of this support element 3, is preferably arranged coaxially with the opening 12 and this, around the central axis A which is common to this mounting zone and to this opening 12 of the 'retaining member 1. Such an arrangement around this common axis A participates in an indexing of this mounting zone relative to the opening 12 during this insertion. More precisely, during this insertion, the contact faces 10 undergo a radial deformation therefore the arms 4 then undergo an elastic deformation under the effect of the application on the contact faces 10 of the arms 4 by the contact portions 13 of the mounting area of the support element 3, with a compressive force F shown in the figure figure 2 . Such a compressive force F generates an elastic deformation in compression of each arm 4 in a radial direction with respect to the central axis A and this, towards the first end of the arm 4 connected to the inner face 6 of the holding member. 1a, 1b, 1c. Such a deformation contributes in particular to the holding member 1a, 1b, 1c to store a large quantity of elastic energy which contributes to giving it a substantial holding torque, in particular allowing optimum holding by elastic clamping in compression. It will also be noted that such an elastic member 1a, 1b, 1c allows the clamping force to be increased significantly in comparison with the elastic members of the state of the art, in fact this clamping force is here approximately twice as large as that of the components of the state of the art for the same configuration.

Claims (12)

Organe de maintien élastique (1) pour la fixation d'un composant d'horlogerie (2) sur un élément de support (3), comportant une portion rigide (7) comprenant une face intérieure (6) comprenant au moins trois bras déformables (4) pourvus d'extrémités libres (9) définissant une ouverture (12) dans laquelle est susceptible d'être inséré ledit élément de support (3), les bras (4) étant configuré pour réaliser un accouplement avec l'élément de support (3) par un serrage élastique en compression de cet élément de support (3) dans l'ouverture (12).Elastic retaining member (1) for fixing a timepiece component (2) on a support element (3), comprising a rigid portion (7) comprising an inner face (6) comprising at least three deformable arms ( 4) provided with free ends (9) defining an opening (12) into which said support element (3) can be inserted, the arms (4) being configured to achieve coupling with the support element ( 3) by elastic clamping in compression of this support element (3) in the opening (12). Organe (1) selon la revendication précédente, caractérisé en ce que chaque bras déformable (4) s'étend radialement de la face intérieure (6) vers un axe central (A) dudit organe (1).Body (1) according to the preceding claim, characterized in that each deformable arm (4) extends radially from the inner face (6) towards a central axis (A) of said member (1). Organe (1) selon l'une quelconque des revendications précédentes, caractérisé en ce que les bras déformables (4) sont constitués essentiellement d'une partie principale (8) comportant une quantité de matière qui décroit régulièrement d'une direction allant de cette face intérieure (6) vers l'axe centrale (4).Body (1) according to any one of the preceding claims, characterized in that the deformable arms (4) consist essentially of a main part (8) comprising a quantity of material which decreases regularly in a direction going from this face interior (6) towards the central axis (4). Organe (1) selon l'une quelconque des revendications précédentes, caractérisé en ce que chaque bras (4) présente une forme essentiellement trapézoïdale.Body (1) according to any one of the preceding claims, characterized in that each arm (4) has an essentially trapezoidal shape. Organe (1) selon l'une quelconque des revendications précédentes, caractérisé en ce que la face intérieure (6) définie un volume (5) dans ledit organe (1) partiellement occupé par les bras déformables (4).Body (1) according to any one of the preceding claims, characterized in that the internal face (6) defines a volume (5) in said body (1) partially occupied by the deformable arms (4). Organe (1) selon l'une quelconque des revendications précédentes, caractérisé en ce que l'extrémité libre (9) de chaque bras déformable (4) comprend une face de contact (10) ayant une forme configurée pour coopérer avec une zone de montage de l'élément de support (3).Member (1) according to any one of the preceding claims, characterized in that the free end (9) of each deformable arm (4) comprises a contact face (10) having a shape configured to cooperate with a mounting zone of the support element (3). Organe (1) selon l'une quelconque des revendications précédentes, caractérisé en ce qu'il comprend six bras déformables (4).Body (1) according to any one of the preceding claims, characterized in that it comprises six deformable arms (4). Organe (1) selon l'une quelconque des revendications précédentes, caractérisé en ce qu'il est fabriqué en une matière fragile notamment une matière micro-usinable.Body (1) according to any one of the preceding claims, characterized in that it is made of a fragile material, in particular a micro-machinable material. Ensemble (120) organe de maintien élastique - composant d'horlogerie pour un mouvement d'horlogerie (110) d'une pièce d'horlogerie (100) comprenant un organe de maintien (1) selon l'une quelconque des revendications précédentes.Assembly (120) elastic retaining member - timepiece component for a timepiece movement (110) of a timepiece (100) comprising a retaining member (1) according to any one of the preceding claims. Assemblage (130) pour un mouvement d'horlogerie (110) d'une pièce d'horlogerie (100) comprenant un ensemble (120) organe de maintien élastique - composant d'horlogerie selon la revendication précédente et un élément de support (3), ledit ensemble (120) étant accouplé par un serrage élastique en compression avec l'élément de support (3).Assembly (130) for a timepiece movement (110) of a timepiece (100) comprising an assembly (120) elastic retaining member - timepiece component according to the preceding claim and a support element (3) , said assembly (120) being coupled by elastic clamping in compression with the support member (3). Mouvement d'horlogerie (110) comprenant au moins un assemblage (130) selon la revendication précédente.Watch movement (110) comprising at least one assembly (130) according to the preceding claim. Pièce d'horlogerie (100) comprenant un mouvement d'horlogerie (110) selon la revendication précédente.Timepiece (100) comprising a timepiece movement (110) according to the preceding claim.
EP19192159.2A 2019-08-16 2019-08-16 Elastic holding member for a timepiece component on a support element Pending EP3779608A1 (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
EP19192159.2A EP3779608A1 (en) 2019-08-16 2019-08-16 Elastic holding member for a timepiece component on a support element
US16/904,655 US11573533B2 (en) 2019-08-16 2020-06-18 Organ for elastically holding a timepiece component on a support element
JP2020109325A JP2021032878A (en) 2019-08-16 2020-06-25 Mechanism for elastically holding timepiece component on support element
RU2020122431A RU2769231C2 (en) 2019-08-16 2020-07-07 Means for resilient retention of clock component on support element
KR1020200089099A KR20210021264A (en) 2019-08-16 2020-07-17 Organ for elastically holding a timepiece component on a support element
CN202010818622.0A CN112394627A (en) 2019-08-16 2020-08-14 Movement for elastically holding a timepiece component on a support element
KR1020220164909A KR20220163341A (en) 2019-08-16 2022-11-30 Organ for elastically holding a timepiece component on a support element

Applications Claiming Priority (1)

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EP19192159.2A EP3779608A1 (en) 2019-08-16 2019-08-16 Elastic holding member for a timepiece component on a support element

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EP3779608A1 true EP3779608A1 (en) 2021-02-17

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US (1) US11573533B2 (en)
EP (1) EP3779608A1 (en)
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KR (2) KR20210021264A (en)
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RU (1) RU2769231C2 (en)

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US11573533B2 (en) 2023-02-07
CN112394627A (en) 2021-02-23
RU2020122431A3 (en) 2022-01-10
JP2021032878A (en) 2021-03-01
KR20220163341A (en) 2022-12-09
RU2769231C2 (en) 2022-03-29
RU2020122431A (en) 2022-01-10
US20210048781A1 (en) 2021-02-18

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