EP2743782A1 - Device for assembly by deformation of resilient arms - Google Patents

Device for assembly by deformation of resilient arms Download PDF

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Publication number
EP2743782A1
EP2743782A1 EP13193509.0A EP13193509A EP2743782A1 EP 2743782 A1 EP2743782 A1 EP 2743782A1 EP 13193509 A EP13193509 A EP 13193509A EP 2743782 A1 EP2743782 A1 EP 2743782A1
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EP
European Patent Office
Prior art keywords
assembly system
opening
level
intermediate portion
inside diameter
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.)
Granted
Application number
EP13193509.0A
Other languages
German (de)
French (fr)
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EP2743782B1 (en
Inventor
Pierre Cusin
Marc Stranczl
Daniel Mallet
Emmanuel Graf
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.)
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Publication date
Application filed by Nivarox Far SA, Nivarox SA filed Critical Nivarox Far SA
Priority to EP13193509.0A priority Critical patent/EP2743782B1/en
Publication of EP2743782A1 publication Critical patent/EP2743782A1/en
Application granted granted Critical
Publication of EP2743782B1 publication Critical patent/EP2743782B1/en
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Anticipated expiration legal-status Critical

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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
    • G04B13/00—Gearwork
    • G04B13/02—Wheels; Pinions; Spindles; Pivots
    • G04B13/021—Wheels; Pinions; Spindles; Pivots elastic fitting with a spindle, axis or shaft
    • G04B13/022—Wheels; Pinions; Spindles; Pivots elastic fitting with a spindle, axis or shaft with parts made of hard material, e.g. silicon, diamond, sapphire, quartz and the like
    • G—PHYSICS
    • G04—HOROLOGY
    • G04D—APPARATUS OR TOOLS SPECIALLY DESIGNED FOR MAKING OR MAINTAINING CLOCKS OR WATCHES
    • G04D3/00—Watchmakers' or watch-repairers' machines or tools for working materials
    • G04D3/0002—Watchmakers' or watch-repairers' machines or tools for working materials for mechanical working other than with a lathe
    • G04D3/0028—Watchmakers' or watch-repairers' machines or tools for working materials for mechanical working other than with a lathe for components of the escape mechanism
    • 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
    • G—PHYSICS
    • G04—HOROLOGY
    • G04C—ELECTROMECHANICAL CLOCKS OR WATCHES
    • G04C3/00—Electromechanical clocks or watches independent of other time-pieces and in which the movement is maintained by electric means
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/53—Means to assemble or disassemble

Definitions

  • the invention relates to a system for assembling a workpiece whose material has little or no plastic domain (that is to say with a very limited plastic domain) with a member comprising another type of material .
  • the document EP 1 850 193 discloses a first piece made of silicon which is assembled on a metal shaft with a metal intermediate piece.
  • the form variants proposed in this document are not satisfactory and either cause the breakage of the silicon-based part during its assembly, or insufficiently solidarity parts between them.
  • the object of the present invention is to overcome all or part of the disadvantages mentioned above by proposing a glueless assembly capable of securing a part whose material has no or only a usable plastic domain with a member comprising a ductile material such as, for example , a metal or a metal alloy.
  • the invention relates to a system for assembling an element made of a first material in the opening of a part in a second material having no or little plastic domain usable by means of an intermediate portion of a third material mounted between said member and said piece characterized in that the piece is arranged to be received against a first level of the intermediate portion and to be locked elastically on a second level of the intermediate portion by driving the member, the second level of the intermediate portion comprises at least one resilient locking device comprising an arm cantilevered from an attached base at the first level of the intermediate part in order to make the whole organ - intermediate part - part.
  • This configuration advantageously makes it possible to secure the whole piece - intermediate part - body without bonding with a usual member to the precision controlled while ensuring that the part does not undergo destructive efforts even if it is formed, for example, based on silicon.
  • the invention relates to a timepiece characterized in that it comprises at least one assembly system according to one of the preceding variants, the part having no or little usable plastic field that can be, for example, a wheel, an anchor or a hairspring.
  • the invention relates to an assembly system for securing a fragile material, that is to say having no or little usable plastic field (that is to say with a very small plastic domain) as a silicon-based material, with a ductile material such as a metal or a metal alloy.
  • this assembly is made necessary by the growing share held by fragile materials such as those based on silicon such as quartz, crystalline silicon, silicon carbide, silicon nitride or silicon oxide, based on corundum or more generally based on ceramics.
  • fragile materials such as those based on silicon such as quartz, crystalline silicon, silicon carbide, silicon nitride or silicon oxide, based on corundum or more generally based on ceramics.
  • the invention relates to an assembly system 1 of a member 3 made of a first material in the opening 4 of a part 5 made of a second material having no or little plastic domain which can be used at using an intermediate portion 7 in a third material mounted between the member 3 and the part 5.
  • the part 5 is received against a first level 6 of the intermediate part 7 and is resiliently locked on a second level 8 of the intermediate part 7 by the member 3 in order to make integral the entire body 3 - part Intermediate 7 - Exhibit 5.
  • the piece 5 in a second material having no or little usable plastic field is represented in annular form.
  • this annular shape is only part of the part 5 intended to explain the assembly system 1.
  • the part 5 has a substantially circular opening 4.
  • the opening 4 of the part 5 has a section whose maximum width is between 0.2 mm and 2 mm.
  • the inside diameter of the opening 4 of the part 5 has recesses 2 intended to allow the intermediate part 7 to be secured against the part 5.
  • the member 3 comprises an axis 9 extended by a shoulder 10 for axially locking the part 5 and the intermediate portion 7 against the member 3.
  • the section of the axis 9 is smaller than that of the opening 4 so that the piece 5 can slide there without greasy friction.
  • the first level 6 of the intermediate portion 7 comprises a peripheral surface 11 allowing to receive at least one part of the part 5.
  • the first level 6 of the intermediate portion 7 comprises at least three studs 12 for driving the axis 9 of the member 3 on the intermediate portion 7.
  • the first level 6 of the intermediate portion 7 comprises lights 13 making visible a portion of the second level 8 of the intermediate portion 7 in particular to control the proper locking of the assembly system 1.
  • the second level 8 of the intermediate portion 7 comprises at least one elastic locking device 15 (three devices 15 are shown in the figures) comprising an arm 17 mounted cantilevered of a base 19 attached at the first level 6 of the intermediate portion 7.
  • the free section formed between the bases 19 is larger than that formed between the studs 12 so as to drive the axis 9 of the member 3 in priority against the first level 6 of the intermediate portion 7.
  • the first 6 and second 8 levels of the intermediate portion 7 are preferably formed form by manufacture, for example, using an electroforming process .
  • each elastic locking device 15 comprises a blade bent elastically by the member 3 and a part 16 of which cooperates with a portion of corresponding geometry formed on the inside diameter of the opening 4 of the part 5 in order to secure the intermediate part 7 against the part 5.
  • the part 16 cooperating with a portion of corresponding geometry formed on the inside diameter of the opening 4 of the part 5 is formed on the free end of each arm 17.
  • the part 16 can be formed at another place on each arm 17.
  • each arm 17 forms a peg which cooperates with one of the recesses 2 forming mortise formed on the inside diameter of the opening 4 of the part 5.
  • one of the elastic locking devices 15 could, unlike the others, comprise a mortise formed on a median part of an arm and which cooperates with a peg formed on the inside diameter of the opening of the part. .
  • the displacement of the arm 17' due to bending, the position of the portion 16 'on the arm 17' and the distance from the point of contact of the member 3 on the arm 17 'relative to its associated base 19, the distance of approaching the portion 16' to the inside diameter of the opening 4 of the part 5 can be selectively adapted.
  • the displacement of the portion 16 ' may be greater or smaller than the displacement of the arm 17' due to bending by contact with the member 3.
  • the anchor 25 for example, comprises two assembling systems 21, 41 according to the invention intended respectively to secure the stinger 23 and the pivot axis 43, with its rod 45.
  • each assembly system 21, 41 has an intermediate portion 27, 47 cooperating between the stinger 23 or the axis 43 and the rod 45 of the anchor 25. It is thus clear that each assembly system 21, 41 is sufficiently resistant so as not to generate relative movements between its constituents.
  • the escape wheel and more generally the wheel 65, comprises, by way of example, an assembly system 61 for securing a pivot axis 63, with the wheel 65.
  • the assembly system 61 has an intermediate portion 67 cooperating between the axis 63 and the wheel 65.
  • the assembly system example 61 can be applied to any type of mobile.
  • the axis 63 may comprise in one piece a pinion to form a finished mobile.
  • the present invention is not limited to the illustrated example but is susceptible of various variations and modifications that will occur to those skilled in the art.
  • the opening 4, 84 can not be limited to a circular section.
  • other shapes are conceivable such as, for example, polygonal or asymmetrical.
  • the second level 8 and / or both levels 6, 8 together can also be used to chase the organ 3 on the intermediate part 7.

Abstract

The assembly system (1) has a portion (5) accommodated against the first level (6) of an intermediate portion (7) and resiliently locked on the second level of the intermediate portion by driving on a component (3). The second level (8) of the intermediate portion has a resilient locking device with the cantilever arm of a base attached to the first level of the intermediate portion to secure together a unit comprising the intermediate portion, the component and the portion.

Description

Domaine de l'inventionField of the invention

L'invention se rapporte à un système d'assemblage d'une pièce dont le matériau ne comporte pas ou peu de domaine plastique (c'est-à-dire avec un domaine plastique très restreint) avec un organe comportant un autre type de matériau.The invention relates to a system for assembling a workpiece whose material has little or no plastic domain (that is to say with a very limited plastic domain) with a member comprising another type of material .

Arrière-plan de l'inventionBackground of the invention

Les assemblages actuels comportant une pièce à base de silicium sont généralement solidarisés par collage. Une telle opération nécessite une extrême finesse d'application ce qui la rend coûteuse.Current assemblies comprising a silicon-based part are generally bonded together. Such an operation requires extreme finesse of application which makes it expensive.

Le document EP 1 850 193 divulgue une première pièce faite à base silicium qui est assemblée sur un axe en métal à l'aide d'une pièce intermédiaire métallique. Toutefois, les variantes de forme proposées dans ce document ne sont pas satisfaisantes et, soit, entraînent le bris de la pièce à base de silicium lors de son assemblage, soit, solidarisent insuffisamment les pièces entre elles.The document EP 1 850 193 discloses a first piece made of silicon which is assembled on a metal shaft with a metal intermediate piece. However, the form variants proposed in this document are not satisfactory and either cause the breakage of the silicon-based part during its assembly, or insufficiently solidarity parts between them.

Résumé de l'inventionSummary of the invention

Le but de la présente invention est de pallier tout ou partie les inconvénients cités précédemment en proposant un assemblage sans colle capable de solidariser une pièce dont le matériau ne comporte pas ou peu de domaine plastique utilisable avec un organe comportant un matériau ductile comme, par exemple, un métal ou un alliage métallique.The object of the present invention is to overcome all or part of the disadvantages mentioned above by proposing a glueless assembly capable of securing a part whose material has no or only a usable plastic domain with a member comprising a ductile material such as, for example , a metal or a metal alloy.

A cet effet, l'invention se rapporte à un système d'assemblage d'un organe en un premier matériau dans l'ouverture d'une pièce en un deuxième matériau ne comportant pas ou peu de domaine plastique utilisable à l'aide d'une partie intermédiaire en un troisième matériau montée entre ledit organe et ladite pièce caractérisé en ce que la pièce est agencée pour être reçue contre un premier niveau de la partie intermédiaire et pour être verrouillée élastiquement sur un deuxième niveau de la partie intermédiaire par chassage de l'organe, le deuxième niveau de la partie intermédiaire comporte au moins un dispositif élastique de verrouillage comportant un bras monté en porte-à-faux d'une base attachée au premier niveau de la partie intermédiaire afin de rendre solidaire l'ensemble organe - partie intermédiaire - pièce.For this purpose, the invention relates to a system for assembling an element made of a first material in the opening of a part in a second material having no or little plastic domain usable by means of an intermediate portion of a third material mounted between said member and said piece characterized in that the piece is arranged to be received against a first level of the intermediate portion and to be locked elastically on a second level of the intermediate portion by driving the member, the second level of the intermediate portion comprises at least one resilient locking device comprising an arm cantilevered from an attached base at the first level of the intermediate part in order to make the whole organ - intermediate part - part.

Cette configuration permet avantageusement de solidariser l'ensemble pièce - partie intermédiaire - organe sans collage avec un organe habituel à la précision maîtrisée tout en garantissant que la pièce ne subisse pas d'efforts destructifs même si elle est formée, par exemple, à base de silicium.This configuration advantageously makes it possible to secure the whole piece - intermediate part - body without bonding with a usual member to the precision controlled while ensuring that the part does not undergo destructive efforts even if it is formed, for example, based on silicon.

Conformément à d'autres caractéristiques avantageuses de l'invention :

  • le bras de chaque dispositif élastique de verrouillage comporte une lame fléchie élastiquement par l'organe et dont une partie coopère avec une portion de géométrie correspondante formée sur le diamètre intérieur de l'ouverture de la pièce afin de solidariser la partie intermédiaire contre la pièce ;
  • la partie coopérant avec une portion de géométrie correspondante formée sur le diamètre intérieur de l'ouverture de la pièce forme un tenon, ou évidement formant mortaise, qui coopère avec un évidement formant mortaise, ou un tenon, réalisé sur le diamètre intérieur de l'ouverture de la pièce ;
  • la partie coopérant avec une portion de géométrie correspondante formée sur le diamètre intérieur de l'ouverture de la pièce est formée sur l'extrémité libre de chaque bras ;
  • le deuxième niveau comporte trois dispositifs élastiques de verrouillage ;
  • le premier niveau de la partie intermédiaire comporte une portée périphérique permettant de recevoir la pièce et au moins trois plots permettant de chasser l'organe sur la partie intermédiaire ;
  • l'organe comporte un axe prolongé par un épaulement permettant de bloquer axialement la pièce et la partie intermédiaire contre l'organe ;
  • l'ouverture de la pièce comporte une section dont la largeur maximale est comprise entre 0,2 mm et 2 mm ;
  • l'ouverture de la pièce comporte une section circulaire, polygonale ou asymétrique ;
  • le deuxième matériau est à base de silicium ;
  • le troisième matériau est formé à base d'un métal ou d'un alliage métallique.
According to other advantageous features of the invention:
  • the arm of each resilient locking device comprises a blade bent elastically by the member and a part of which cooperates with a portion of corresponding geometry formed on the inside diameter of the opening of the part to secure the intermediate portion against the workpiece;
  • the part cooperating with a portion of corresponding geometry formed on the inside diameter of the opening of the piece forms a tenon, or recess forming mortise, which cooperates with a recess forming mortise, or tenon, made on the inner diameter of the opening of the room;
  • the portion cooperating with a corresponding geometry portion formed on the inside diameter of the opening of the workpiece is formed on the free end of each arm;
  • the second level comprises three elastic locking devices;
  • the first level of the intermediate portion comprises a peripheral surface for receiving the workpiece and at least three studs for driving the organ on the intermediate portion;
  • the member comprises an axis extended by a shoulder for axially locking the workpiece and the intermediate portion against the member;
  • the opening of the piece has a section whose maximum width is between 0.2 mm and 2 mm;
  • the opening of the piece has a circular, polygonal or asymmetrical section;
  • the second material is silicon-based;
  • the third material is formed based on a metal or a metal alloy.

De plus, l'invention se rapporte à une pièce d'horlogerie caractérisée en ce qu'elle comporte au moins un système d'assemblage selon l'une des variantes précédentes, la pièce ne comportant pas ou peu de domaine plastique utilisable pouvant être, par exemple, une roue, une ancre ou un spiral.In addition, the invention relates to a timepiece characterized in that it comprises at least one assembly system according to one of the preceding variants, the part having no or little usable plastic field that can be, for example, a wheel, an anchor or a hairspring.

Description sommaire des dessinsBrief description of the drawings

D'autres particularités et avantages ressortiront clairement de la description qui en est faite ci-après, à titre indicatif et nullement limitatif, en référence aux dessins annexés, dans lesquels :

  • la figure 1 est une vue en éclatée d'un système d'assemblage selon l'invention ;
  • la figure 2 est une vue partielle en perspective d'un système d'assemblage monté selon l'invention ;
  • les figures 3 et 4 sont des vues en perspective d'une partie intermédiaire selon l'invention ;
  • la figure 5 est une vue partielle montrant le verrouillage d'un système d'assemblage selon l'invention ;
  • la figure 6 est une vue schématique partielle d'un mouvement horloger comportant trois systèmes d'assemblage selon l'invention ;
  • la figure 7 est une vue schématique partielle d'un spiral horloger comportant un système d'assemblage selon l'invention.
Other particularities and advantages will emerge clearly from the description which is given hereinafter, by way of indication and in no way limiting, with reference to the appended drawings, in which:
  • the figure 1 is an exploded view of an assembly system according to the invention;
  • the figure 2 is a partial perspective view of an assembly system mounted according to the invention;
  • the Figures 3 and 4 are perspective views of an intermediate portion according to the invention;
  • the figure 5 is a partial view showing the locking of an assembly system according to the invention;
  • the figure 6 is a partial schematic view of a watch movement comprising three assembly systems according to the invention;
  • the figure 7 is a partial schematic view of a watch hairspring comprising an assembly system according to the invention.

Description détaillée des modes de réalisation préférésDetailed Description of the Preferred Embodiments

Comme expliqué ci-dessus, l'invention se rapporte à un système d'assemblage destiné à solidariser un matériau fragile, c'est-à-dire ne comportant pas ou peu de domaine plastique utilisable (c'est-à-dire avec un domaine plastique très restreint) comme un matériau à base de silicium, avec un matériau ductile comme un métal ou un alliage métallique.As explained above, the invention relates to an assembly system for securing a fragile material, that is to say having no or little usable plastic field (that is to say with a very small plastic domain) as a silicon-based material, with a ductile material such as a metal or a metal alloy.

Ce système d'assemblage a été imaginé pour des applications dans le domaine horloger. Toutefois, d'autres domaines peuvent parfaitement être imaginés comme notamment l'aéronautique, la bijouterie, l'automobile ou les arts de la table.This assembly system has been devised for applications in the watchmaking field. However, other areas can perfectly be imagined as including aeronautics, jewelry, automotive or the arts of the table.

Dans le domaine horloger, cet assemblage est rendu nécessaire par la part croissante que tiennent les matériaux fragiles comme ceux à base de silicium tels que le quartz, le silicium cristallin, le carbure de silicium, le nitrure de silicium ou l'oxyde de silicium, à base de corindon ou plus généralement à base de céramiques. On peut, à titre d'exemple, envisager de former le spiral, le balancier, l'ancre, les ponts ou même les mobiles comme les roues d'échappement totalement ou partiellement à base de matériaux fragiles.In the watchmaking sector, this assembly is made necessary by the growing share held by fragile materials such as those based on silicon such as quartz, crystalline silicon, silicon carbide, silicon nitride or silicon oxide, based on corundum or more generally based on ceramics. One can, for example, consider forming the hairspring, the balance, anchor, bridges or even mobiles such as exhaust wheels totally or partially based on fragile materials.

Toutefois, le fait de toujours pouvoir utiliser des axes habituels en acier dont la fabrication est maîtrisée, est une contrainte qui est difficile à concilier avec l'utilisation de pièces ne comportant pas ou peu de domaine plastique utilisable. En effet, lors de tests effectués, le chassage d'un axe en acier est impossible et brise systématiquement les pièces fragiles, c'est-à-dire ne comportant pas ou peu de domaine plastique utilisable. Par exemple, il est apparu que le cisaillement généré par l'entrée de l'axe métallique dans l'ouverture d'une pièce en silicium brise systématique cette dernière.However, the fact of always being able to use usual steel axes whose manufacture is controlled, is a constraint that is difficult to reconcile with the use of parts with no or little usable plastic field. Indeed, during tests carried out, the driving of a steel shaft is impossible and systematically breaks the fragile parts, that is to say, with no or little plastic field usable. For example, it appeared that the shear generated by the input of the axis metal in the opening of a piece of silicon breaks the latter.

C'est pourquoi, l'invention se rapporte à un système d'assemblage 1 d'un organe 3 en un premier matériau dans l'ouverture 4 d'une pièce 5 en un deuxième matériau ne comportant pas ou peu de domaine plastique utilisable à l'aide d'une partie intermédiaire 7 en un troisième matériau montée entre l'organe 3 et la pièce 5.This is why the invention relates to an assembly system 1 of a member 3 made of a first material in the opening 4 of a part 5 made of a second material having no or little plastic domain which can be used at using an intermediate portion 7 in a third material mounted between the member 3 and the part 5.

Selon l'invention, la pièce 5 est reçue contre un premier niveau 6 de la partie intermédiaire 7 et est verrouillée élastiquement sur un deuxième niveau 8 de la partie intermédiaire 7 par l'organe 3 afin de rendre solidaire l'ensemble organe 3 - partie intermédiaire 7 - pièce 5.According to the invention, the part 5 is received against a first level 6 of the intermediate part 7 and is resiliently locked on a second level 8 of the intermediate part 7 by the member 3 in order to make integral the entire body 3 - part Intermediate 7 - Exhibit 5.

Comme illustré aux figures 1 et 2, la pièce 5 en un deuxième matériau ne comportant pas ou peu de domaine plastique utilisable est représentée sous forme annulaire. Toutefois, comme illustré aux figures 6 et 7, cette forme annulaire n'est qu'une partie de la pièce 5 destinée à expliquer le système d'assemblage 1. Comme illustré aux figures 1 et 2, la pièce 5 comporte une ouverture 4 sensiblement circulaire. Préférentiellement, l'ouverture 4 de la pièce 5 comporte une section dont la largeur maximale est comprise entre 0,2 mm et 2 mm.As illustrated in Figures 1 and 2 , the piece 5 in a second material having no or little usable plastic field is represented in annular form. However, as illustrated in figures 6 and 7 this annular shape is only part of the part 5 intended to explain the assembly system 1. As illustrated in FIGS. Figures 1 and 2 , the part 5 has a substantially circular opening 4. Preferably, the opening 4 of the part 5 has a section whose maximum width is between 0.2 mm and 2 mm.

De plus, comme visible aux figures 1 et 2, préférentiellement, le diamètre intérieur de l'ouverture 4 de la pièce 5 comporte des évidements 2 destinés à permettre la solidarisation de la partie intermédiaire 7 contre la pièce 5.Moreover, as visible Figures 1 and 2 preferentially, the inside diameter of the opening 4 of the part 5 has recesses 2 intended to allow the intermediate part 7 to be secured against the part 5.

A la figure 1, on peut voir un organe 3 selon l'invention. L'organe 3 comporte un axe 9 prolongé par un épaulement 10 permettant de bloquer axialement la pièce 5 et la partie intermédiaire 7 contre l'organe 3. Préférentiellement, la section de l'axe 9 est inférieure à celle de l'ouverture 4 afin que la pièce 5 puisse y coulisser sans frottement gras.To the figure 1 we can see an organ 3 according to the invention. The member 3 comprises an axis 9 extended by a shoulder 10 for axially locking the part 5 and the intermediate portion 7 against the member 3. Preferably, the section of the axis 9 is smaller than that of the opening 4 so that the piece 5 can slide there without greasy friction.

Selon l'invention, le premier niveau 6 de la partie intermédiaire 7 comporte une portée périphérique 11 permettant de recevoir au moins une partie de la pièce 5. De plus, le premier niveau 6 de la partie intermédiaire 7 comprend au moins trois plots 12 permettant de chasser l'axe 9 de l'organe 3 sur la partie intermédiaire 7. Enfin, préférentiellement, le premier niveau 6 de la partie intermédiaire 7 comporte des lumières 13 rendant visibles une partie du deuxième niveau 8 de la partie intermédiaire 7 afin notamment de contrôler le bon verrouillage du système d'assemblage 1.According to the invention, the first level 6 of the intermediate portion 7 comprises a peripheral surface 11 allowing to receive at least one part of the part 5. In addition, the first level 6 of the intermediate portion 7 comprises at least three studs 12 for driving the axis 9 of the member 3 on the intermediate portion 7. Finally, preferably, the first level 6 of the intermediate portion 7 comprises lights 13 making visible a portion of the second level 8 of the intermediate portion 7 in particular to control the proper locking of the assembly system 1.

Selon l'invention, le deuxième niveau 8 de la partie intermédiaire 7 comporte au moins un dispositif élastique de verrouillage 15 (trois dispositifs 15 sont montrés dans les figures) comportant un bras 17 monté en porte-à-faux d'une base 19 attachée au premier niveau 6 de la partie intermédiaire 7. Préférentiellement selon l'invention, la section libre formée entre les bases 19 est plus grande que celle formée entre les plots 12 de manière à chasser l'axe 9 de l'organe 3 prioritairement contre le premier niveau 6 de la partie intermédiaire 7. De plus, les premier 6 et deuxième 8 niveaux de la partie intermédiaire 7 sont, de manière préférée, venus de forme par fabrication, par exemple, à l'aide d'un procédé d'électroformage.According to the invention, the second level 8 of the intermediate portion 7 comprises at least one elastic locking device 15 (three devices 15 are shown in the figures) comprising an arm 17 mounted cantilevered of a base 19 attached at the first level 6 of the intermediate portion 7. Preferably according to the invention, the free section formed between the bases 19 is larger than that formed between the studs 12 so as to drive the axis 9 of the member 3 in priority against the first level 6 of the intermediate portion 7. In addition, the first 6 and second 8 levels of the intermediate portion 7 are preferably formed form by manufacture, for example, using an electroforming process .

Préférentiellement selon l'invention, comme mieux visible aux figures 2 et 5, le bras 17 de chaque dispositif élastique de verrouillage 15 comporte une lame fléchie élastiquement par l'organe 3 et dont une partie 16 coopère avec une portion de géométrie correspondante formée sur le diamètre intérieur de l'ouverture 4 de la pièce 5 afin de solidariser la partie intermédiaire 7 contre la pièce 5.Preferably according to the invention, as better visible figures 2 and 5 the arm 17 of each elastic locking device 15 comprises a blade bent elastically by the member 3 and a part 16 of which cooperates with a portion of corresponding geometry formed on the inside diameter of the opening 4 of the part 5 in order to secure the intermediate part 7 against the part 5.

Dans l'exemple des figures 2 et 5, la partie 16 coopérant avec une portion de géométrie correspondante formée sur le diamètre intérieur de l'ouverture 4 de la pièce 5 est formée sur l'extrémité libre de chaque bras 17. Bien entendu, la partie 16 peut être formée à un autre endroit sur chaque bras 17.In the example of figures 2 and 5 the part 16 cooperating with a portion of corresponding geometry formed on the inside diameter of the opening 4 of the part 5 is formed on the free end of each arm 17. Of course, the part 16 can be formed at another place on each arm 17.

Dans l'exemple illustré aux figures 1 et 2, la partie 16 de chaque bras 17 forme un tenon qui coopère avec un des évidements 2 formant mortaise réalisé sur le diamètre intérieur de l'ouverture 4 de la pièce 5. Bien évidemment, d'autres formes et/ou d'autres types d'emboîtements et/ou un emboîtement inversé et/ou des emboîtements différents alternés peuvent être envisagés sans que les effets techniques soient perdus. A titre d'exemple, un des dispositifs élastique de verrouillage 15 pourrait, au contraire des autres, comporter une mortaise formée sur une partie médiane d'un bras et qui coopère avec un tenon formé sur le diamètre intérieur de l'ouverture de la pièce.In the example shown in Figures 1 and 2 the part 16 of each arm 17 forms a peg which cooperates with one of the recesses 2 forming mortise formed on the inside diameter of the opening 4 of the part 5. Of course, other shapes and / or other types of interlocking and / or Inverted interlocking and / or alternate interlocking can be envisaged without the technical effects being lost. By way of example, one of the elastic locking devices 15 could, unlike the others, comprise a mortise formed on a median part of an arm and which cooperates with a peg formed on the inside diameter of the opening of the part. .

Dans l'exemple des figures 2 et 5, on comprend mieux comment la lame de chaque bras 17 est fléchie par l'organe 3. En traits continus, on peut voir un bras 17' et sa partie 16' d'un dispositif élastique de verrouillage 15 lorsque le bras 17 n'est pas fléchi par l'organe 3. On remarque qu'une partie de la lame du bras 17' dépasse de la section libre formée entre les plots 12 du premier niveau 6 de la partie intermédiaire 7.In the example of figures 2 and 5 it is better understood how the blade of each arm 17 is bent by the member 3. In continuous lines, we can see an arm 17 'and its portion 16' of a resilient locking device 15 when the arm 17 is not bent by the member 3. Note that a portion of the blade of the arm 17 'protrudes from the free section formed between the pads 12 of the first level 6 of the intermediate portion 7.

On comprend donc que, quand l'organe 3 est, de manière préférée, chassé contre les plots 12, la lame de chaque bras 17' est fléchie par le passage de l'organe 3 obligeant chaque bras 17' à se déplacer vers le diamètre intérieur de l'ouverture 4 de la pièce 5. A la figure 5, le déplacement du bras 17' est montré par la référence 17 en traits interrompus. De manière analogue, la partie 16' est référencée 16 et est logée dans l'évidement 2 formé sur le diamètre intérieur de l'ouverture 4 de la pièce 5.It is thus understood that, when the member 3 is, preferably, driven against the studs 12, the blade of each arm 17 'is bent by the passage of the member 3 forcing each arm 17' to move towards the diameter inside the opening 4 of the room 5. At the figure 5 , the displacement of the arm 17 'is shown by the reference 17 in broken lines. Similarly, the part 16 'is referenced 16 and is housed in the recess 2 formed on the inside diameter of the opening 4 of the part 5.

Bien entendu, suivant la courbure du bras 17' au repos, le déplacement du bras 17' dû au fléchissement, la position de la partie 16' sur le bras 17' et la distance du point de contact de l'organe 3 sur le bras 17' par rapport à sa base 19 associée, la distance de rapprochement de la partie 16' vers le diamètre intérieur de l'ouverture 4 de la pièce 5 peut être sélectivement adaptée. Ainsi, à titre d'exemple, le déplacement de la partie 16' peut être plus grand ou plus petit que le déplacement du bras 17' dû au fléchissement par contact avec l'organe 3.Of course, according to the curvature of the arm 17 'at rest, the displacement of the arm 17' due to bending, the position of the portion 16 'on the arm 17' and the distance from the point of contact of the member 3 on the arm 17 'relative to its associated base 19, the distance of approaching the portion 16' to the inside diameter of the opening 4 of the part 5 can be selectively adapted. Thus, by way of example, the displacement of the portion 16 'may be greater or smaller than the displacement of the arm 17' due to bending by contact with the member 3.

Par conséquent, une fois les trois dispositifs élastiques de verrouillage 15 montés sur la partie intermédiaire 7 activés, l'organe 3, la partie intermédiaire 7 et pièce 5 forment un ensemble solidaire.Therefore, once the three resilient locking devices 15 mounted on the intermediate portion 7 activated, the member 3, the intermediate portion 7 and part 5 form an integral assembly.

Les figures 6 et 7 montrent des exemples d'applications dans le domaine de l'horlogerie. Dans le cas de la figure 6, l'ancre 25, à titre d'exemple, comporte deux systèmes d'assemblages 21, 41 selon l'invention destinés respectivement à solidariser le dard 23 et l'axe de pivotement 43, avec sa baguette 45.The figures 6 and 7 show examples of applications in the field of watchmaking. In the case of figure 6 , the anchor 25, for example, comprises two assembling systems 21, 41 according to the invention intended respectively to secure the stinger 23 and the pivot axis 43, with its rod 45.

Comme visible à la figure 6, chaque système d'assemblage 21, 41 comporte une partie intermédiaire 27, 47 coopérant entre le dard 23 ou l'axe 43 et la baguette 45 de l'ancre 25. On comprend donc que chaque système d'assemblage 21, 41 est suffisamment résistant pour ne pas générer de mouvements relatifs entre ses constituants.As visible at figure 6 each assembly system 21, 41 has an intermediate portion 27, 47 cooperating between the stinger 23 or the axis 43 and the rod 45 of the anchor 25. It is thus clear that each assembly system 21, 41 is sufficiently resistant so as not to generate relative movements between its constituents.

La roue d'échappement, et plus généralement la roue 65, comporte, à titre d'exemple, un système d'assemblage 61 destiné à solidariser un axe de pivotement 63, avec la roue 65. Comme visible à la figure 6, le système d'assemblage 61 comporte une partie intermédiaire 67 coopérant entre l'axe 63 et la roue 65.The escape wheel, and more generally the wheel 65, comprises, by way of example, an assembly system 61 for securing a pivot axis 63, with the wheel 65. As visible in FIG. figure 6 , the assembly system 61 has an intermediate portion 67 cooperating between the axis 63 and the wheel 65.

On comprend donc immédiatement que l'exemple de système d'assemblage 61 peut s'appliquer à tout type de mobile. De plus, l'axe 63 peut comporter en une seule pièce un pignon afin de former un mobile fini.It is therefore immediately understood that the assembly system example 61 can be applied to any type of mobile. In addition, the axis 63 may comprise in one piece a pinion to form a finished mobile.

Comme illustré à la figure 7, il est possible de fixer un spiral 85 sur un axe 83 de balancier, à l'aide d'un système d'assemblage 81 selon l'invention. Pour ce faire, une partie intermédiaire 87 est montée dans l'ouverture 84 de la virole 88 de manière similaire aux explications ci-dessus.As illustrated in figure 7 it is possible to fix a hairspring 85 on an axis 83 of a beam, with the aid of an assembly system 81 according to the invention. To do this, an intermediate portion 87 is mounted in the opening 84 of the ferrule 88 in a manner similar to the explanations above.

Bien entendu, la présente invention ne se limite pas à l'exemple illustré mais est susceptible de diverses variantes et modifications qui apparaîtront à l'homme de l'art. En particulier, l'ouverture 4, 84 ne saurait se limiter à une section circulaire. Ainsi, d'autres formes sont envisageables comme, par exemple, polygonale ou asymétrique.Of course, the present invention is not limited to the illustrated example but is susceptible of various variations and modifications that will occur to those skilled in the art. In particular, the opening 4, 84 can not be limited to a circular section. Thus, other shapes are conceivable such as, for example, polygonal or asymmetrical.

De plus, même si la partie intermédiaire 7 est prioritairement chassée sur le premier niveau 6, le deuxième niveau 8 et/ou les deux niveaux 6, 8 ensemble peuvent également être utilisés pour chasser l'organe 3 sur la partie intermédiaire 7.Moreover, even if the intermediate part 7 is primarily driven on the first level 6, the second level 8 and / or both levels 6, 8 together can also be used to chase the organ 3 on the intermediate part 7.

Claims (15)

Système d'assemblage (1, 21, 41, 61, 81) d'un organe (3, 23, 43, 63, 83) en un premier matériau dans l'ouverture (4, 84) d'une pièce (5, 25, 65, 85) en un deuxième matériau ne comportant pas de domaine plastique utilisable à l'aide d'une partie intermédiaire (7, 27, 47, 67, 87) en un troisième matériau montée entre ledit organe et ladite pièce caractérisé en ce que la pièce (5, 25, 65, 85) est agencée pour être reçue contre un premier niveau (6) de la partie intermédiaire (7, 27, 47, 67, 87) et pour être verrouillée élastiquement sur un deuxième niveau (8) de la partie intermédiaire (7, 27, 47, 67, 87) par chassage de l'organe (3, 23, 43, 63, 83), le deuxième niveau (8) de la partie intermédiaire (7, 27, 47, 67, 87) comportant au moins un dispositif élastique de verrouillage (15) comportant un bras (17) monté en porte-à-faux d'une base (19) attachée au premier niveau (6) de la partie intermédiaire (7, 27, 47, 67, 87) afin de rendre solidaire l'ensemble organe (3, 23, 43, 63, 83) - partie intermédiaire (7, 27, 47, 67, 87) - pièce (5, 25, 65, 85).Assembly system (1, 21, 41, 61, 81) of a member (3, 23, 43, 63, 83) of a first material in the opening (4, 84) of a workpiece (5, 25, 65, 85) in a second material having no plastic range usable by means of an intermediate portion (7, 27, 47, 67, 87) of a third material mounted between said member and said piece characterized by that the part (5, 25, 65, 85) is arranged to be received against a first level (6) of the intermediate portion (7, 27, 47, 67, 87) and to be elastically locked to a second level ( 8) of the intermediate portion (7, 27, 47, 67, 87) by driving the member (3, 23, 43, 63, 83), the second level (8) of the intermediate portion (7, 27, 47, 67, 87) comprising at least one resilient locking device (15) having an arm (17) cantilevered from a base (19) attached to the first level (6) of the intermediate portion (7). , 27, 47, 67, 87) in order to make the whole org ane (3, 23, 43, 63, 83) - intermediate part (7, 27, 47, 67, 87) - part (5, 25, 65, 85). Système d'assemblage (1, 21, 41, 61, 81) selon la revendication précédente, caractérisé en ce que le bras (17) de chaque dispositif élastique de verrouillage (15) comporte une lame fléchie élastiquement par l'organe (3, 23, 43, 63, 83) et dont une partie (16) coopère avec une portion de géométrie correspondante formée sur le diamètre intérieur de l'ouverture (4, 84) de la pièce (5, 25, 65, 85) afin de solidariser la partie intermédiaire (7, 27, 47, 67, 87) contre la pièce (5, 25, 65, 85).Assembly system (1, 21, 41, 61, 81) according to the preceding claim, characterized in that the arm (17) of each elastic locking device (15) comprises a blade flexed elastically by the member (3, 23, 43, 63, 83) and a part (16) of which cooperates with a portion of corresponding geometry formed on the inside diameter of the opening (4, 84) of the part (5, 25, 65, 85) in order to secure the intermediate part (7, 27, 47, 67, 87) against the part (5, 25, 65, 85). Système d'assemblage (1, 21, 41, 61, 81) selon la revendication précédente, caractérisé en ce que la partie (16) coopérant avec une portion de géométrie correspondante formée sur le diamètre intérieur de l'ouverture (4, 84) de la pièce (5, 25, 65, 85) forme un tenon qui coopère avec un évidement (2) formant mortaise réalisé sur le diamètre intérieur de l'ouverture de la pièce.Assembly system (1, 21, 41, 61, 81) according to the preceding claim, characterized in that the portion (16) cooperating with a portion of corresponding geometry formed on the inside diameter of the opening (4, 84) piece (5, 25, 65, 85) forms a tenon which cooperates with a recess (2) forming mortise formed on the inside diameter of the opening of the workpiece. Système d'assemblage (1, 21, 41, 61, 81) selon la revendication 2, caractérisé en ce que la partie (16) coopérant avec une portion de géométrie correspondante formée sur le diamètre intérieur de l'ouverture (4, 84) de la pièce (5, 25, 65, 85) forme un évidement formant mortaise qui coopère avec un tenon réalisé sur le diamètre intérieur de l'ouverture de la pièce.Assembly system (1, 21, 41, 61, 81) according to claim 2, characterized in that the portion (16) cooperating with a corresponding geometry portion formed on the inside diameter of the opening (4, 84) the part (5, 25, 65, 85) forms a mortise recess which cooperates with a stud made on the inside diameter of the opening of the part. Système d'assemblage (1, 21, 41, 61, 81) selon l'une des revendications 2 à 4, caractérisé en ce que la partie (16) coopérant avec une portion de géométrie correspondante formée sur le diamètre intérieur de l'ouverture (4, 84) de la pièce (5, 25, 65, 85) est formée sur l'extrémité libre de chaque bras (17).Assembly system (1, 21, 41, 61, 81) according to one of claims 2 to 4, characterized in that the portion (16) cooperating with a corresponding geometry portion formed on the inside diameter of the opening (4, 84) of the workpiece (5, 25, 65, 85) is formed on the free end of each arm (17). Système d'assemblage (1, 21, 41, 61, 81) selon l'une des revendications précédentes, caractérisé en ce que le deuxième niveau (8) comporte trois dispositifs élastiques de verrouillage (15).Assembly system (1, 21, 41, 61, 81) according to one of the preceding claims, characterized in that the second level (8) comprises three resilient locking devices (15). Système d'assemblage (1, 21, 41, 61, 81) selon l'une des revendications précédentes, caractérisé en ce que le premier niveau (6) de la partie intermédiaire (7, 27, 47, 67, 87) comporte une portée périphérique (11) permettant de recevoir la pièce (5, 25, 65, 85) et au moins trois plots (12) permettant de chasser l'organe (3, 23, 43, 63, 83) sur la partie intermédiaire (7, 27, 47, 67, 87).Assembly system (1, 21, 41, 61, 81) according to one of the preceding claims, characterized in that the first level (6) of the intermediate part (7, 27, 47, 67, 87) comprises a peripheral bearing (11) for receiving the part (5, 25, 65, 85) and at least three studs (12) for driving the member (3, 23, 43, 63, 83) on the intermediate part (7). , 27, 47, 67, 87). Système d'assemblage (1, 21, 41, 61, 81) selon l'une des revendications précédentes, caractérisé en ce que l'organe (3, 23, 43, 63, 83) comporte un axe (9) prolongé par un épaulement (10) permettant de bloquer axialement la pièce (5, 25, 65, 85) et la partie intermédiaire (7, 27, 47, 67, 87) contre l'organe (3, 23, 43, 63, 83).Assembly system (1, 21, 41, 61, 81) according to one of the preceding claims, characterized in that the member (3, 23, 43, 63, 83) comprises an axis (9) extended by a shoulder (10) for axially locking the workpiece (5, 25, 65, 85) and the intermediate part (7, 27, 47, 67, 87) against the member (3, 23, 43, 63, 83). Système d'assemblage (1, 21, 41, 61, 81) selon l'une des revendications précédentes, caractérisé en ce que l'ouverture (4, 84) de la pièce (5, 25, 65, 85) comporte une section dont la largeur maximale est comprise entre 0,2 mm et 2 mm.Assembly system (1, 21, 41, 61, 81) according to one of the preceding claims, characterized in that the opening (4, 84) of the piece (5, 25, 65, 85) has a section whose maximum width is between 0.2 mm and 2 mm. Système d'assemblage (1, 21, 41, 61, 81) selon l'une des revendications précédentes, caractérisé en ce que l'ouverture (4, 84) de la pièce (5, 25, 65, 85) comporte une section circulaire.Assembly system (1, 21, 41, 61, 81) according to one of the preceding claims, characterized in that the opening (4, 84) of the part (5, 25, 65, 85) has a section circular. Système d'assemblage (1, 21, 41, 61, 81) selon l'une des revendications 1 à 9, caractérisé en ce que l'ouverture (4, 84) de la pièce (5, 25, 65, 85) comporte une section polygonale ou asymétrique.Assembly system (1, 21, 41, 61, 81) according to one of claims 1 to 9, characterized in that the opening (4, 84) of the workpiece (5, 25, 65, 85) comprises a polygonal or asymmetrical section. Système d'assemblage (1, 21, 41, 61, 81) selon l'une des revendications précédentes, caractérisé en ce que le deuxième matériau est à base de silicium.Assembly system (1, 21, 41, 61, 81) according to one of the preceding claims, characterized in that the second material is based on silicon. Système d'assemblage (1, 21, 41, 61, 81) selon l'une des revendications précédentes, caractérisé en ce que le troisième matériau est formé à base d'un métal ou d'un alliage métallique.Assembly system (1, 21, 41, 61, 81) according to one of the preceding claims, characterized in that the third material is formed based on a metal or a metal alloy. Pièce d'horlogerie caractérisée en ce qu'elle comporte au moins un système d'assemblage (1, 21, 41, 61, 81) selon l'une des revendications précédentes.Timepiece characterized in that it comprises at least one assembly system (1, 21, 41, 61, 81) according to one of the preceding claims. Pièce d'horlogerie selon la revendication précédente, caractérisée en ce que la pièce ne comportant pas de domaine plastique utilisable est une roue (65), une ancre (25) ou un spiral (85).Timepiece according to the preceding claim, characterized in that the part having no usable plastic field is a wheel (65), an anchor (25) or a spiral (85).
EP13193509.0A 2012-12-11 2013-11-19 Device for assembly by deformation of resilient arms Active EP2743782B1 (en)

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EP3176650A1 (en) * 2015-12-02 2017-06-07 Nivarox-FAR S.A. Protection of a timepiece component with micro-machinable material
US10496038B2 (en) 2015-12-02 2019-12-03 Nivarox-Far S.A. Protection of a timepiece component made of micromachinable material
EP3955064A1 (en) * 2020-08-12 2022-02-16 Patek Philippe SA Genève Timepiece component comprising an opening designed for insertion of an axis
EP4123391A1 (en) * 2021-07-22 2023-01-25 Dubois & Depraz S.A. Timepiece component to be attached to a shaft and its assembly process

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JP5763739B2 (en) 2015-08-12
TW201441778A (en) 2014-11-01
CN103869677A (en) 2014-06-18
HK1199113A1 (en) 2015-06-19
RU2638091C2 (en) 2017-12-11
US20140160901A1 (en) 2014-06-12
EP2743782B1 (en) 2016-02-03
US8845184B2 (en) 2014-09-30
RU2013154778A (en) 2015-06-20
TWI606319B (en) 2017-11-21
JP2014115293A (en) 2014-06-26
CN103869677B (en) 2017-09-22

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