EP3527101B1 - Timepiece device such as a cover with movable components - Google Patents

Timepiece device such as a cover with movable components Download PDF

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Publication number
EP3527101B1
EP3527101B1 EP18157057.3A EP18157057A EP3527101B1 EP 3527101 B1 EP3527101 B1 EP 3527101B1 EP 18157057 A EP18157057 A EP 18157057A EP 3527101 B1 EP3527101 B1 EP 3527101B1
Authority
EP
European Patent Office
Prior art keywords
component
watch device
guiding element
watch
guiding
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.)
Active
Application number
EP18157057.3A
Other languages
German (de)
French (fr)
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EP3527101A1 (en
Inventor
Benjamin Celant
Martin Christian
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.)
Rolex SA
Original Assignee
Rolex 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 Rolex SA filed Critical Rolex SA
Priority to EP18157057.3A priority Critical patent/EP3527101B1/en
Priority to US16/266,449 priority patent/US20190254391A1/en
Priority to JP2019019240A priority patent/JP2019166308A/en
Priority to CN201980013465.1A priority patent/CN111726998B/en
Priority to PCT/EP2019/053281 priority patent/WO2019158471A1/en
Priority to JP2020543532A priority patent/JP2021513885A/en
Priority to EP19702931.7A priority patent/EP3752024A1/en
Priority to US16/963,619 priority patent/US11388961B2/en
Priority to CN201910117654.5A priority patent/CN110150805A/en
Publication of EP3527101A1 publication Critical patent/EP3527101A1/en
Priority to JP2024008094A priority patent/JP2024038465A/en
Application granted granted Critical
Publication of EP3527101B1 publication Critical patent/EP3527101B1/en
Active legal-status Critical Current
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Classifications

    • A—HUMAN NECESSITIES
    • A44—HABERDASHERY; JEWELLERY
    • A44C—PERSONAL ADORNMENTS, e.g. JEWELLERY; COINS
    • A44C5/00—Bracelets; Wrist-watch straps; Fastenings for bracelets or wrist-watch straps
    • A44C5/02—Link constructions
    • A—HUMAN NECESSITIES
    • A44—HABERDASHERY; JEWELLERY
    • A44C—PERSONAL ADORNMENTS, e.g. JEWELLERY; COINS
    • A44C5/00—Bracelets; Wrist-watch straps; Fastenings for bracelets or wrist-watch straps
    • A44C5/18—Fasteners for straps, chains or the like
    • A44C5/22—Fasteners for straps, chains or the like for closed straps
    • A44C5/24—Fasteners for straps, chains or the like for closed straps with folding devices
    • A44C5/246—Fasteners for straps, chains or the like for closed straps with folding devices having size adjusting means
    • A—HUMAN NECESSITIES
    • A44—HABERDASHERY; JEWELLERY
    • A44C—PERSONAL ADORNMENTS, e.g. JEWELLERY; COINS
    • A44C5/00—Bracelets; Wrist-watch straps; Fastenings for bracelets or wrist-watch straps
    • A44C5/0053—Flexible straps
    • A—HUMAN NECESSITIES
    • A44—HABERDASHERY; JEWELLERY
    • A44C—PERSONAL ADORNMENTS, e.g. JEWELLERY; COINS
    • A44C5/00—Bracelets; Wrist-watch straps; Fastenings for bracelets or wrist-watch straps
    • A44C5/02—Link constructions
    • A44C5/04—Link constructions extensible
    • A44C5/08—Link constructions extensible having separate links
    • 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
    • G04B37/00—Cases
    • G04B37/22—Materials or processes of manufacturing pocket watch or wrist watch cases
    • G04B37/225—Non-metallic cases
    • 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
    • G04B37/00—Cases
    • G04B37/0008—Cases for pocket watches and wrist watches

Definitions

  • the present invention relates to a watch device comprising at least two components movable relative to each other.
  • This watchmaking device can be a clasp for a bracelet or a bracelet or any watchmaking device.
  • the invention also relates to a watch as such comprising such a watchmaking device.
  • a clasp is generally equipped with a device for adjusting the length of a bracelet.
  • a device for adjusting the length of a bracelet can include a link or a movable mesh relative to a cover of the clasp, which can occupy several different stable positions within the clasp, corresponding to different bracelet lengths.
  • a bracelet link is adjustable thanks to a structure of two half links movable relative to each other.
  • a watch dressing device often includes two moving components.
  • the document EP1908366 describes a watchmaking device according to the preamble of claim 1.
  • the intermediate document EP3287855A1 describes a crown of a watchmaking device, comprising two components linked together, the first component comprising a first guide element and the second component comprising a second guide element, the two components being linked together in a movable manner by a cooperation of their respective guide elements, the first guide element comprising a guide surface in contact at least partially with the second guide element and the two respective guide elements of the two components being capable of allowing relative sliding of the two components, this surface guide comprising a polymer material belonging to the family of polyaryletherketones (polyetheretherketone).
  • the general objective of the invention is to offer a solution which makes it possible to best respond to the aforementioned constraints.
  • a first object of the invention is to offer a guiding solution for moving components of a watchmaking device, making it possible to limit the wear of the guiding elements, to reduce their friction, to reduce the risk of seizure and their corrosion.
  • a second object of the invention is to offer a guiding solution for moving components of a watchmaking device making it possible to limit, or even prevent, the deposit and/or amalgamation of dirt in the guiding elements. .
  • a third object of the invention is to offer a guiding solution for moving components of a watch device which improves user comfort.
  • the invention is based on a watchmaking device according to claim 1.
  • the first embodiment of the invention is based on a watchmaking device allowing the length of a bracelet to be adjusted within a clasp, as represented by the figures 1 and 2 .
  • a watch device comprises a first component 1, which is a link in this first embodiment, mounted movably relative to a second component 21, which is a clasp cover.
  • the first component 1 of the watchmaking device comprises two lateral extension links 2, arranged to move in rotation around a bar 3.
  • the ends of this bar 3 comprise first guide elements 10, which are positioned in a clasp cover slide.
  • the second component 21 of the watchmaking device according to this first embodiment is a clasp cover comprising two side walls 22 each comprising a slide, as mentioned above. Each slide forms a second guide element 30, which cooperates with a first guide element 10.
  • the first guide element 10 is advantageously in the form of a pad or a roller and the second guide element 30 in the form of a slide or slide, or 'a bore, shaped to receive such a pad.
  • the pads arranged at each end of the bar 3 thus slide parallel, in their respective opposite slides, in a movement corresponding substantially to a translation.
  • the first guide element 10 is in the form of an element distinct from the first component 1.
  • two pads with slightly arched profiles are arranged respectively on either side of the link comprising two lateral extension links 2, and are assembled to these extension links via the bar 3.
  • the pads comprise a central bore 11 provided for their positioning around a cylindrical receiving zone 4 at the end of the bar 3, as is particularly visible on the figure 2 .
  • the first guide elements 10, that is to say the pads or rollers, are in one piece.
  • they are entirely composed of a high-performance polymer, belonging to the polyaryletherketone (PAEK) family, in particular polyetheretherketone (PEEK).
  • PAEK polyaryletherketone
  • PEEK polyetheretherketone
  • the first guide elements 10 could only comprise a portion made of a high-performance polymer, belonging to the polyaryletherketone (PAEK) family, in particular PEEK.
  • this portion could be at the level of a guide surface, intended to come into contact with the second guide element 30, that is to say the slide.
  • This portion can thus take the form of a surface coating at the level of the contact zones or the friction zones.
  • a PEEK conformation can be overmolded on a skate.
  • the first guide element 10 may comprise a core covered with a coating comprising the polymer material belonging to the PEAK family, forming all or part of the guide surface.
  • FIG. 3 represents a variant embodiment in which a component comprising the first guide element 10 is directly fixed on the first component 1.
  • this component comprises fixing studs 12 on a side face, intended to be driven into bores of a side mesh 2 for extending the first component 1.
  • This attachment can, for example, be implemented by driving, riveting, bonding, welding or brazing.
  • This component comprises the guide element 10, which comprises a guide surface 13, on its second side face.
  • FIG. 5 illustrates a first component 1 according to an alternative embodiment.
  • This first component 1 comprises a mesh 2 which comprises a projection, in particular a circular or oblong projection, which acts as a pad.
  • This circular projection is formed on one side of said mesh 2 and forms the guide element 10 of the first component.
  • the mesh 2 is in one piece, namely that it is made of a high-performance polymer, in particular of a polymer material belonging to the polyaryletherketone (PAEK) family, in particular of PEEK.
  • PAEK polyaryletherketone
  • the projection can be overmolded on one side of the mesh 2.
  • the projection can be coated with PEAK, for example PEEK, over all or part of its surface.
  • the first embodiment has been described based on a first component 1 comprising a guide element 10 at least partially composed of a material belonging to the polyaryletherketone (PAEK) family.
  • a guide element 30 of the second component 21 could also comprise a material belonging to the polyaryletherketone (PAEK) family.
  • any of the two moving components of the watch device may comprise in whole or in part a material belonging to the polyaryletherketone (PAEK) family on all or part of its guide surface.
  • the two moving components of the watch device may comprise such a material.
  • the second guide element 30 can be made of steel or of a precious material, such as gold or platinum.
  • the second guide element 30 can be made of ceramic. More particularly, it may have come from material with a component made of ceramic or steel or of a precious material, such as gold or platinum.
  • the second guide element 30 may alternatively be manufactured from a high-performance polymer, in particular from a polymer material belonging to the polyaryletherketone (PAEK) family, in particular from PEEK. More particularly, it may be made of material with a second mobile component entirely made of PEEK.
  • PAEK polyaryletherketone
  • the second guide element 30 can be attached to a component preferably made of steel or a precious material such as gold or platinum.
  • the second guide element 30 can be attached to a component made of ceramic.
  • the Figure 6 illustrates a clasp cover provided with slides arranged in side walls formed on either side of said cover, in a manner similar to the first embodiment described previously.
  • the cover is one-piece, entirely composed of a high-performance polymer, notably PEEK.
  • the slides can be coated with a polymer material belonging to the polyaryletherketone (PAEK) family, in particular PEEK, on all or part of their surface.
  • PAEK polyaryletherketone
  • the watchmaking device is a bracelet extension device for a clasp. It applies to any watchmaking device, in particular watch dressing, in which a second component is shaped to accommodate within it a guiding element of a first component, such as a roller or a pad.
  • a second component can thus, for example, include a cutout, such as a bore or a groove. This cutout can be open or not.
  • the relative movement of the two components of the watch device is advantageously a translation, possibly a slightly curved sliding, which can in particular correspond to the curvature of a clasp cover.
  • this movement could be an articulation such as a rotation for example.
  • a guiding element of a mobile component can be any means allowing the relative movement of a first component 1 relative to a second component 21.
  • the first component 1 can be a clasp blade, arranged to move substantially in translation relative to a second clasp blade, representing a second component 21, like the clasp blades described within the document EP0350785 .
  • the first component 1 can be in the form of a half-mesh of a mesh intended to move relative to a second half-mesh of said mesh, representing a second component 21, in a manner similar to the half-mesh described in the document WO2014114404 .
  • the material chosen can be unfilled or charged.
  • a load makes it possible to optimize, among other things, the tribological and mechanical characteristics of the component.
  • the filler may comprise at least reinforcing fibers and/or a lubricating agent and/or graphite.
  • the filler may also comprise at least one pigment, in particular for the purpose of coloring the component.
  • the material chosen will be PEAK, in particular PEEK, polyetheretherketone (PEEEK), polyetherketone (PEK), polyetherketoneketone (PEKK) or a copolymer of the latter and/or a mixture of polymers.
  • PEAK polyetheretherketone
  • PEK polyetherketone
  • PEKK polyetherketoneketone
  • this polymer material can advantageously comprise at least one filler of polytetrafluoroethylene (PTFE), molybdenum sulfide, tungsten disulfide, hexagonal boron nitride, carbon fibers, aramid fibers, fibers glass, graphite, graphene, carbon nanotubes, polyimides, polyphenylene sulfide, diamond nanoparticles, polysilsesquioxanes, boron fibers or a combination of two or more of these.
  • PTFE polytetrafluoroethylene
  • molybdenum sulfide molybdenum sulfide
  • tungsten disulfide hexagonal boron nitride
  • carbon fibers aramid fibers
  • fibers glass graphite, graphene, carbon nanotubes
  • polyimides polyphenylene sulfide
  • diamond nanoparticles polysilsesquioxanes
  • the material is PEEK which contains 20% PTFE, for example Victrex ® 450FE20.
  • the material is PEEK which contains 30% additive, in particular carbon fibers and/or graphite and/or PTFE.
  • the material is PEEK which contains 30% of carbon fibers and additional additives, in particular graphite and/or PTFE.
  • the fibers contained within PEEK can be aramid fibers or boron fibers.
  • PEAK or PEEK examples include, among others: Victrex ® PEEK 450FC30, Ketron ® HPV, Tekapeek ® PVX, KetaSpire ® KT-820 SL30, AKROTEKO PEAK CF30, AvaSpire ® AV-651 CF30, AvaSpire ® AV- 722 SL30, AvaSpire® AV-755 SL45.
  • the PEEK polymer can be replaced by any other polymer from the PEAK family.
  • the component comprises 65% PEEK, 15% carbon fibers, 10% PTFE, 8% carbon nanotubes, and 2% nano-diamond.
  • the element or part of the element made of material belonging to the polyaryletherketone (PAEK) family is manufactured by any process or combination of processes known to those skilled in the art.
  • the surface of the component or part of a component made of material belonging to the polyaryletherketone (PAEK) family can be structured, in particular micro-structured, in particular with the aim of shaping a first element in the aim of optimizing the tribological and/or wear behavior of the PEAK surface or allowing better distribution of a lubricant.
  • This structuring can be obtained directly during molding of the part or subsequently by machining or micro-machining, for example by laser texturing (in English laser surface texturing or LST) or by chemical etching. Any other technique or combination of techniques can also be implemented to obtain structuring or micro-structuring.
  • the guide element or the part of the guide element which can be a part made of polymer or metal, is coated at least partially with a coating comprising a material belonging to the polyaryletherketone (PAEK) family, in particular PEEK.
  • PAEK polyaryletherketone
  • the coating may be applied using conventional dispersion spray techniques, electrostatic spray techniques or overmolding.
  • a coating can also be applied to an element according to one of the preceding embodiments with or without micro-structuring of the surface of said component: for example a DLC coating or any other appropriate coating technique. Micro-structuring of the surface can also be carried out after application of the coating.
  • the relative movement of two mobile components of a watch device also advantageously requires an indexing device, which makes it possible to predetermine certain relative stable positionings of said two mobile components.
  • an indexing device is implemented via indexing elements of each of the two mobile components. A technical problem which arises is to be able to best combine this indexing device with the guiding device of the two moving components.
  • a guide element 10 of the first component 1 comprises at least a first indexing element 15, which is intended to cooperate with a second indexing element 35 of the second component 21.
  • This fourth embodiment concerns a device for extending a bracelet, similar to that of the first embodiment, but comprising an indexing device.
  • an extension mesh 2 of a first component 1 is movable relative to a cover of clasp. Elastically recalled balls are provided at the end of the links to cooperate with notches adjoining a slide of the clasp cover; each notch, due to its possibility of temporarily housing an elastic ball, corresponds to a predefined position of an adjustment mesh relative to the cover.
  • This device therefore effectively implements indexing of the position of the two components.
  • a PEEK pad always forms a guiding element of the first component.
  • This pad is in the shape of a U, the two sides of which are respectively designed to move in two upper and lower portions of a slide in the form of two parallel upper and lower grooves.
  • the balls forming the indexing element are arranged between the two sides of the U, and are able to be housed in notches arranged between the two grooves forming the second guide element 30. These notches form the second indexing element.
  • the indexing elements are arranged near the guide elements, in a combined but relatively independent manner.
  • the first indexing element 15 can be supported by the first guide element 10.
  • the Figure 11 illustrates a guide element 10 of the first component 1 which comprises indexing elements 15 in the form of projections directly made on the guide element, in particular a one-piece pad.
  • these projections can have a hemispherical conformation.
  • these projections may have any other geometry, such as a rectangular and/or elongated geometry.
  • These projections are intended to cooperate with a second indexing element 35 in the form of a succession of notches arranged within a slide of a cover of clasp, as shown by the Figure 12 .
  • the projections are made from the material of the guide element, for example PEAK, particularly PEEK, since the assembly is in one piece.
  • the projections can be made of another material, and can in particular be formed on a pad of which at least a portion is made or is coated with PEAK.
  • the indexing device described above can be combined with a complementary indexing device of a bracelet link relative to a clasp cover, that is to say it can complement 'a conventional indexing system, such as a bar indexing system or a ball indexing system using in particular a toothing 35' such as that shown in the Figure 12 .
  • the invention also relates to a watch device, in particular a watch dressing device, comprising two components 1, 21 linked together, the first component 1 comprising a first guide element 10 and the second component 21 comprising a second element guide 30, the two components being linked together in a movable manner by cooperation of their respective guide elements 10, 30, and characterized in that the first component 1 comprises a first indexing element 15 which cooperates with a second element indexing of the second component 21.
  • the notching forming a first indexing element comes in addition to or as an alternative to the notching known from the state of the art, for example the notching 35' of the Figure 10 .
  • An indexing element can form a single piece assembly with a guide element, or a separate element arranged near an element guide, for example by an elastic ball or projection placed between two guide ribs.
  • indexing elements are subject to stresses very close to those experienced by the guide elements.
  • they can also advantageously comprise a polymer material belonging to the polyaryletherketone (PAEK) family.
  • PAEK polyaryletherketone
  • the first indexing element 15 can be implemented independently of the first guide element 10.
  • the invention also relates to a watch device, in particular a watch dressing device, comprising two components 1, 21 linked together, the first component 1 comprising a first indexing element 15 and the second component 21 comprising a second indexing element 35, the two components being linked together in a movable manner, and characterized in that the first indexing element 15 and/or the second indexing element 35 comprises a contact surface, comprising a polymer material belonging to to the polyaryletherketone (PAEK) family.
  • PAEK polyaryletherketone
  • the first guide element 10 may comprise at least one channeling element 17 of a lubricant.
  • the Figure 13 represents a view of a side face of a guide element 10 of a first component according to a fifth embodiment of the invention, comprising channels or grooves intended to be filled with a lubricant: these grooves thus form a pipe element 17 of a lubricant.
  • these channels are machined directly on a pad forming a guide element of the first component, and therefore are at least partially made of PEEK or coated at least partially with PEEK.
  • these channels can be obtained differently, and can be arranged on a guide element made of any other material.
  • a guide element according to the invention can be lubricated or not.
  • a perfluorinated lubricant can be used.
  • the invention also relates to a watch device, in particular a watch dressing device, comprising two components 1, 21 linked together, the first component 1 comprising a first guide element 10 and the second component 21 comprising a second element guide 30, the two components being linked together in a movable manner by cooperation of their respective guide elements 10, 30, and characterized in that the guide element 10 of the first component 1 comprises a channeling element 17 of a lubricant.
  • the invention has been described based on a bracelet extension device. As has been mentioned, it naturally applies to any watch device comprising two moving components.
  • the invention also relates to a bracelet and/or a clasp and/or a wristwatch and/or a watch dressing device, which integrate(s) at least one watch device as described above.

Description

IntroductionIntroduction

La présente invention concerne un dispositif horloger comprenant au moins deux composants mobiles l'un par rapport à l'autre. Ce dispositif horloger peut être un fermoir pour bracelet ou un bracelet ou tout dispositif d'habillage horloger. L'invention porte aussi sur une montre en tant que telle comprenant un tel dispositif horloger.The present invention relates to a watch device comprising at least two components movable relative to each other. This watchmaking device can be a clasp for a bracelet or a bracelet or any watchmaking device. The invention also relates to a watch as such comprising such a watchmaking device.

Etat de l'ArtState of the art

En dehors des mouvements horlogers et des nombreux engrenages et mécanismes qu'un tel mouvement horloger peut comprendre, il existe plusieurs autres situations dans lesquelles un dispositif horloger comprend deux composants mobiles l'un par rapport à l'autre.Apart from watch movements and the numerous gears and mechanisms that such a watch movement may include, there are several other situations in which a watch device includes two components that move relative to each other.

Par exemple, un fermoir est en général doté d'un dispositif de réglage de la longueur d'un bracelet. Pour cela, il peut comprendre un maillon ou une maille mobile relativement à un couvercle du fermoir, qui peut occuper plusieurs positions stables différentes au sein du fermoir, correspondant à différentes longueurs de bracelet.For example, a clasp is generally equipped with a device for adjusting the length of a bracelet. For this, it can include a link or a movable mesh relative to a cover of the clasp, which can occupy several different stable positions within the clasp, corresponding to different bracelet lengths.

Dans un autre exemple décrit dans le document WO2014114404 , une maille de bracelet est réglable grâce à une structure en deux demi mailles mobiles l'une par rapport à l'autre.In another example described in the document WO2014114404 , a bracelet link is adjustable thanks to a structure of two half links movable relative to each other.

Plus généralement, un dispositif d'habillage horloger comprend souvent deux composants mobiles. Le document EP1908366 décrit un dispositif horloger selon le préambule de la revendication 1.More generally, a watch dressing device often includes two moving components. The document EP1908366 describes a watchmaking device according to the preamble of claim 1.

Le document intermédiaire EP3287855A1 décrit une couronne d'un dispostif horloger, comprenant deux composants liés entre eux, le premier composant comprenant un premier élément de guidage et le deuxième composant comprenant un deuxième élément de guidage, les deux composants étant liés entre eux de manière mobile par une coopération de leurs éléments de guidage respectifs, le premier élément de guidage comprenant une surface de guidage en contact au moins partiellement avec le deuxième élément de guidage et les deux éléments de guidage respectifs des deux composants étant aptes à permettre un coulissement relatif des deux composants, cette surface de guidage comprenant un matériau polymère appartenant à la famille des polyaryléthercétones (du polyétheréthercétone).The intermediate document EP3287855A1 describes a crown of a watchmaking device, comprising two components linked together, the first component comprising a first guide element and the second component comprising a second guide element, the two components being linked together in a movable manner by a cooperation of their respective guide elements, the first guide element comprising a guide surface in contact at least partially with the second guide element and the two respective guide elements of the two components being capable of allowing relative sliding of the two components, this surface guide comprising a polymer material belonging to the family of polyaryletherketones (polyetheretherketone).

Dans tous les cas, les composants mobiles d'un dispositif horloger sont équipés d'éléments de guidage qui sont soumis à de nombreuses contraintes parmi lesquelles :

  • une contrainte mécanique lors de leur fonction de guidage du déplacement d'un composant ;
  • une contrainte mécanique exceptionnelle lors d'un événement particulier, comme une chute, un choc, un arrachement, une torsion, etc. ;
  • des contraintes environnementales comme la pollution ou la sueur de l'utilisateur, qui pourraient éventuellement générer une dégradation par corrosion ou oxydation.
In all cases, the moving components of a watch device are equipped with guide elements which are subject to numerous constraints including:
  • a mechanical constraint during their function of guiding the movement of a component;
  • exceptional mechanical stress during a particular event, such as a fall, shock, tearing, twisting, etc. ;
  • environmental constraints such as pollution or user sweat, which could possibly generate degradation through corrosion or oxidation.

L'invention a pour objectif général d'offrir une solution qui permet de répondre au mieux aux contraintes susmentionnées.The general objective of the invention is to offer a solution which makes it possible to best respond to the aforementioned constraints.

Plus particulièrement, un premier objet de l'invention est d'offrir une solution de guidage pour composants mobiles d'un dispositif horloger, permettant de limiter l'usure des éléments de guidage, de réduire leurs frottements, de diminuer le risque de grippage et leur corrosion.More particularly, a first object of the invention is to offer a guiding solution for moving components of a watchmaking device, making it possible to limit the wear of the guiding elements, to reduce their friction, to reduce the risk of seizure and their corrosion.

En complément, un deuxième objet de l'invention est d'offrir une solution de guidage pour composants mobiles d'un dispositif horloger permettant de limiter, voire d'empêcher, le dépôt et/ou l'amalgame de salissures dans les éléments de guidage.In addition, a second object of the invention is to offer a guiding solution for moving components of a watchmaking device making it possible to limit, or even prevent, the deposit and/or amalgamation of dirt in the guiding elements. .

Un troisième objet de l'invention est d'offrir une solution de guidage pour composants mobiles d'un dispositif horloger qui améliore le confort de l'utilisateur.A third object of the invention is to offer a guiding solution for moving components of a watch device which improves user comfort.

Brève description de l'inventionBrief description of the invention

A cet effet, l'invention repose sur un dispositif horloger selon la revendication 1.For this purpose, the invention is based on a watchmaking device according to claim 1.

L'invention est plus précisément définie par les revendications.The invention is more precisely defined by the claims.

Brève description des figuresBrief description of the figures

Ces objets, caractéristiques et avantages de l'invention seront exposés en détail dans la description suivante de modes de réalisation particuliers faits à titre non-limitatif en relation avec les figures jointes parmi lesquelles :

  • La figure 1 représente une vue en perspective d'un couvercle de fermoir intégrant un dispositif de réglage de la longueur d'un bracelet selon un premier mode de réalisation de l'invention.
  • La figure 2 représente une vue en coupe selon un plan transversal du couvercle de fermoir au niveau du dispositif de réglage de la longueur du bracelet selon le premier mode de réalisation de l'invention.
  • La figure 3 représente une variante de réalisation d'un premier composant d'un dispositif horloger selon le premier mode de réalisation de l'invention.
  • La figure 4 représente une variante de réalisation d'un deuxième composant d'un dispositif horloger selon le premier mode de réalisation de l'invention.
  • La figure 5 illustre un premier composant d'un dispositif horloger selon une variante du premier mode de réalisation.
  • La figure 6 représente un deuxième composant d'un dispositif horloger selon une variante du premier mode de réalisation de l'invention.
  • La figure 7 représente un dispositif horloger selon un deuxième mode de réalisation de l'invention.
  • La figure 8 représente un dispositif horloger selon un troisième mode de réalisation de l'invention.
  • La figure 9 représente une vue en coupe selon un plan transversal d'un couvercle de fermoir au niveau d'un dispositif de réglage de la longueur d'un bracelet selon un quatrième mode de réalisation de l'invention.
  • La figure 10 représente une vue en perspective d'un couvercle de fermoir intégrant le dispositif de réglage de la longueur d'un bracelet selon le quatrième mode de réalisation de l'invention.
  • La figure 11 représente une vue en perspective d'un élément de guidage d'un dispositif de réglage de la longueur d'un bracelet selon un cinquième mode de réalisation de l'invention.
  • La figure 12 représente une vue en coupe selon un plan longitudinal d'un couvercle de fermoir du dispositif de réglage de la longueur d'un bracelet selon le cinquième mode de réalisation de l'invention.
  • La figure 13 représente une vue de côté d'un élément de guidage intégrant un élément de canalisation d'un lubrifiant selon un mode de réalisation de l'invention.
These objects, characteristics and advantages of the invention will be explained in detail in the following description of particular embodiments made on a non-limiting basis in relation to the attached figures among which:
  • There figure 1 represents a perspective view of a clasp cover incorporating a device for adjusting the length of a bracelet according to a first embodiment of the invention.
  • There figure 2 represents a sectional view along a transverse plane of the clasp cover at the level of the device for adjusting the length of the bracelet according to the first embodiment of the invention.
  • There Figure 3 represents an alternative embodiment of a first component of a watch device according to the first embodiment of the invention.
  • There Figure 4 represents an alternative embodiment of a second component of a watch device according to the first embodiment of the invention.
  • There Figure 5 illustrates a first component of a watchmaking device according to a variant of the first embodiment.
  • There Figure 6 represents a second component of a watchmaking device according to a variant of the first embodiment of the invention.
  • There Figure 7 represents a watchmaking device according to a second embodiment of the invention.
  • There figure 8 represents a watchmaking device according to a third embodiment of the invention.
  • There Figure 9 represents a sectional view along a transverse plane of a clasp cover at the level of a device for adjusting the length of a bracelet according to a fourth embodiment of the invention.
  • There Figure 10 represents a perspective view of a clasp cover integrating the device for adjusting the length of a bracelet according to the fourth embodiment of the invention.
  • There Figure 11 represents a perspective view of a guide element of a device for adjusting the length of a bracelet according to a fifth embodiment of the invention.
  • There Figure 12 represents a sectional view along a longitudinal plane of a clasp cover of the device for adjusting the length of a bracelet according to the fifth embodiment of the invention.
  • There Figure 13 represents a side view of a guide element integrating a lubricant channeling element according to one embodiment of the invention.

Le premier mode de réalisation de l'invention repose sur un dispositif horloger permettant le réglage de la longueur d'un bracelet au sein d'un fermoir, tel que représenté par les figures 1 et 2. Un tel dispositif horloger comprend un premier composant 1, qui est un maillon dans ce premier mode de réalisation, monté mobile relativement à un deuxième composant 21, qui est un couvercle de fermoir.The first embodiment of the invention is based on a watchmaking device allowing the length of a bracelet to be adjusted within a clasp, as represented by the figures 1 and 2 . Such a watch device comprises a first component 1, which is a link in this first embodiment, mounted movably relative to a second component 21, which is a clasp cover.

Le premier composant 1 du dispositif horloger selon ce mode de réalisation comprend deux mailles 2 latérales de rallonge, agencées mobiles en rotation autour d'une barrette 3. Les extrémités de cette barrette 3 comprennent des premiers éléments de guidage 10, qui sont positionnés dans une glissière du couvercle du fermoir.The first component 1 of the watchmaking device according to this embodiment comprises two lateral extension links 2, arranged to move in rotation around a bar 3. The ends of this bar 3 comprise first guide elements 10, which are positioned in a clasp cover slide.

Le deuxième composant 21 du dispositif horloger selon ce premier mode de réalisation, plus particulièrement représenté par la figure 1, est un couvercle de fermoir comprenant deux parois latérales 22 comprenant chacune une glissière, comme mentionné ci-dessus. Chaque glissière forme un deuxième élément de guidage 30, qui coopère avec un premier élément de guidage 10.The second component 21 of the watchmaking device according to this first embodiment, more particularly represented by the figure 1 , is a clasp cover comprising two side walls 22 each comprising a slide, as mentioned above. Each slide forms a second guide element 30, which cooperates with a first guide element 10.

Dans ce premier mode de réalisation, le premier élément de guidage 10 se présente avantageusement sous la forme d'un patin ou d'un galet et le deuxième élément de guidage 30 sous la forme d'une glissière ou d'une coulisse, ou d'un alésage, conformée pour recevoir un tel patin. Les patins agencés à chaque extrémité de la barrette 3 coulissent ainsi parallèlement, dans leurs glissières opposées respectives, selon un mouvement correspondant sensiblement à une translation.In this first embodiment, the first guide element 10 is advantageously in the form of a pad or a roller and the second guide element 30 in the form of a slide or slide, or 'a bore, shaped to receive such a pad. The pads arranged at each end of the bar 3 thus slide parallel, in their respective opposite slides, in a movement corresponding substantially to a translation.

Dans ce premier mode de réalisation, le premier élément de guidage 10 se présente sous la forme d'un élément distinct du premier composant 1. Dans cette construction particulière, deux patins aux profils légèrement arqués sont disposés respectivement de part et d'autre du maillon comportant deux mailles 2 latérales de rallonge, et sont assemblés à ces mailles de rallonge par le biais de la barrette 3. Pour ce faire, les patins comportent un alésage central 11 prévu pour leur positionnement autour d'une zone cylindrique de réception 4 à l'extrémité de la barrette 3, comme cela est particulièrement visible sur la figure 2.In this first embodiment, the first guide element 10 is in the form of an element distinct from the first component 1. In this particular construction, two pads with slightly arched profiles are arranged respectively on either side of the link comprising two lateral extension links 2, and are assembled to these extension links via the bar 3. To do this, the pads comprise a central bore 11 provided for their positioning around a cylindrical receiving zone 4 at the end of the bar 3, as is particularly visible on the figure 2 .

Dans ce mode de réalisation, les premiers éléments de guidage 10, c'est-à-dire les patins ou galets, sont monoblocs. De plus, ils sont entièrement composés en un polymère haute performance, appartenant à la famille des polyaryléthercétones (PAEK), notamment en polyétheréthercétone (PEEK).In this embodiment, the first guide elements 10, that is to say the pads or rollers, are in one piece. In addition, they are entirely composed of a high-performance polymer, belonging to the polyaryletherketone (PAEK) family, in particular polyetheretherketone (PEEK).

Les études de la demanderesse ont montré qu'un tel polymère a notamment pour avantage d'optimiser la fiabilité et la durabilité des composants avec une meilleure résistance à l'usure et à l'abrasion. En particulier, les performances en termes de glissement et de durabilité sont supérieures, entre autres, à celles des polymères de la famille des polyacétals.The applicant's studies have shown that such a polymer has the particular advantage of optimizing the reliability and durability of the components with better resistance to wear and abrasion. In particular, the performances in terms of sliding and durability are superior, among others, to those of polymers from the polyacetal family.

Alternativement, les premiers éléments de guidage 10 pourraient seulement comporter une portion en un polymère haute performance, appartenant à la famille des polyaryléthercétones (PAEK), notamment en PEEK. Notamment, cette portion pourrait être au niveau d'une surface de guidage, destinée à venir en contact avec le deuxième élément de guidage 30, c'est-à-dire la glissière. Cette portion peut ainsi prendre la forme d'un revêtement de surface au niveau des zones de contact ou des zones de frottement. Notamment, une conformation en PEEK peut être surmoulée sur un patin. A titre d'exemple, le premier élément de guidage 10 peut comprendre une âme recouverte d'un revêtement comprenant le matériau polymère appartenant à la famille des PEAK, formant tout ou partie de la surface de guidage.Alternatively, the first guide elements 10 could only comprise a portion made of a high-performance polymer, belonging to the polyaryletherketone (PAEK) family, in particular PEEK. In particular, this portion could be at the level of a guide surface, intended to come into contact with the second guide element 30, that is to say the slide. This portion can thus take the form of a surface coating at the level of the contact zones or the friction zones. In particular, a PEEK conformation can be overmolded on a skate. By way of example, the first guide element 10 may comprise a core covered with a coating comprising the polymer material belonging to the PEAK family, forming all or part of the guide surface.

La figure 3 représente une variante de réalisation dans laquelle un composant comprenant le premier élément de guidage 10 est directement fixé sur le premier composant 1. Dans cette variante, ce composant comprend des plots de fixation 12 sur une face latérale, prévus pour être chassés dans des alésages d'une maille 2 latérale de rallonge du premier composant 1. Cette fixation peut, par exemple, être mise en oeuvre par chassage, rivetage, collage, soudage ou brasage. Ce composant comprend l'élément de guidage 10, qui comprend une surface de guidage 13, sur sa deuxième face latérale.There Figure 3 represents a variant embodiment in which a component comprising the first guide element 10 is directly fixed on the first component 1. In this variant, this component comprises fixing studs 12 on a side face, intended to be driven into bores of a side mesh 2 for extending the first component 1. This attachment can, for example, be implemented by driving, riveting, bonding, welding or brazing. This component comprises the guide element 10, which comprises a guide surface 13, on its second side face.

La figure 5 illustre un premier composant 1 selon une variante de réalisation. Ce premier composant 1 comprend une maille 2 qui comprend une saillie, notamment une saillie circulaire ou oblongue, qui fait office de patin. Cette saillie circulaire est formée sur un flanc de ladite maille 2 et forme l'élément de guidage 10 du premier composant. Dans ce cas particulier, la maille 2 est monobloc, à savoir qu'elle est faite en un polymère haute performance, notamment en un matériau polymère appartenant à la famille des polyaryléthercétones (PAEK), en particulier en PEEK. Alternativement, la saillie peut être surmoulée sur un flanc de la maille 2. Alternativement encore, la saillie peut être revêtue de PEAK, par exemple de PEEK, sur tout ou partie de sa surface.There Figure 5 illustrates a first component 1 according to an alternative embodiment. This first component 1 comprises a mesh 2 which comprises a projection, in particular a circular or oblong projection, which acts as a pad. This circular projection is formed on one side of said mesh 2 and forms the guide element 10 of the first component. In this particular case, the mesh 2 is in one piece, namely that it is made of a high-performance polymer, in particular of a polymer material belonging to the polyaryletherketone (PAEK) family, in particular of PEEK. Alternatively, the projection can be overmolded on one side of the mesh 2. Alternatively, the projection can be coated with PEAK, for example PEEK, over all or part of its surface.

Le premier mode de réalisation a été décrit à partir d'un premier composant 1 comprenant un élément de guidage 10 au moins partiellement composé d'un matériau appartenant à la famille des polyaryléthercétones (PAEK). Naturellement, un élément de guidage 30 du deuxième composant 21 pourrait aussi comprendre un matériau appartenant à la famille des polyaryléthercétones (PAEK). Autrement dit, n'importe lequel des deux composants mobiles du dispositif horloger peut comprendre en tout ou partie un matériau appartenant à la famille des polyaryléthercétones (PAEK) sur tout ou partie de sa surface de guidage. Alternativement, les deux composants mobiles du dispositif horloger peuvent comprendre un tel matériau.The first embodiment has been described based on a first component 1 comprising a guide element 10 at least partially composed of a material belonging to the polyaryletherketone (PAEK) family. Naturally, a guide element 30 of the second component 21 could also comprise a material belonging to the polyaryletherketone (PAEK) family. In other words, any of the two moving components of the watch device may comprise in whole or in part a material belonging to the polyaryletherketone (PAEK) family on all or part of its guide surface. Alternatively, the two moving components of the watch device may comprise such a material.

Le deuxième élément de guidage 30 peut être fabriqué en acier ou en matière précieuse, telle que l'or ou le platine. En alternative, le deuxième élément de guidage 30 peut être fabriqué en céramique. Plus particulièrement, il peut être venu de matière avec un composant fabriqué en céramique ou en acier ou en matière précieuse, telle que l'or ou le platine. Comme mentionné ci-dessus, le deuxième élément de guidage 30 peut en variante être fabriqué en un polymère haute performance, notamment en un matériau polymère appartenant à la famille des polyaryléthercétones (PAEK), en particulier en PEEK. Plus particulièrement, il peut être venu de matière avec un deuxième composant mobile entièrement fabriqué en PEEK. Alternativement, comme représenté sur la figure 4, le deuxième élément de guidage 30 peut être rapporté sur un composant préférentiellement fabriqué en acier ou en matière précieuse telle que l'or ou le platine. Alternativement encore, le deuxième élément de guidage 30 peut être rapporté sur un composant fabriqué en céramique.The second guide element 30 can be made of steel or of a precious material, such as gold or platinum. Alternatively, the second guide element 30 can be made of ceramic. More particularly, it may have come from material with a component made of ceramic or steel or of a precious material, such as gold or platinum. As mentioned above, the second guide element 30 may alternatively be manufactured from a high-performance polymer, in particular from a polymer material belonging to the polyaryletherketone (PAEK) family, in particular from PEEK. More particularly, it may be made of material with a second mobile component entirely made of PEEK. Alternatively, as shown in the Figure 4 , the second guide element 30 can be attached to a component preferably made of steel or a precious material such as gold or platinum. Alternatively, the second guide element 30 can be attached to a component made of ceramic.

A titre d'exemple, la figure 6 illustre un couvercle de fermoir doté de coulisses disposées dans des parois latérales formées de part et d'autre dudit couvercle, de manière similaire au premier mode de réalisation décrit précédemment. Dans ce cas particulier, le couvercle est monobloc, entièrement composé d'un polymère haute performance, notamment de PEEK. Alternativement, seules les coulisses peuvent être revêtues d'un matériau polymère appartenant à la famille des polyaryléthercétones (PAEK), notamment de PEEK, sur tout ou partie de leur surface.As an example, the Figure 6 illustrates a clasp cover provided with slides arranged in side walls formed on either side of said cover, in a manner similar to the first embodiment described previously. In this particular case, the cover is one-piece, entirely composed of a high-performance polymer, notably PEEK. Alternatively, only the slides can be coated with a polymer material belonging to the polyaryletherketone (PAEK) family, in particular PEEK, on all or part of their surface.

L'invention ne se limite pas au mode de réalisation décrit dans lequel le dispositif horloger est un dispositif de rallonge de bracelet pour fermoir. Elle s'applique à tout dispositif horloger, notamment d'habillage horloger, dans lequel un deuxième composant est conformé pour accueillir en son sein un élément de guidage d'un premier composant, tel qu'un galet ou un patin. Un tel deuxième composant peut ainsi, par exemple, comporter une découpe, comme un alésage ou une rainure. Cette découpe peut être débouchante ou non.The invention is not limited to the embodiment described in which the watchmaking device is a bracelet extension device for a clasp. It applies to any watchmaking device, in particular watch dressing, in which a second component is shaped to accommodate within it a guiding element of a first component, such as a roller or a pad. Such a second component can thus, for example, include a cutout, such as a bore or a groove. This cutout can be open or not.

De plus, le déplacement relatif des deux composants du dispositif horloger est avantageusement une translation, éventuellement un coulissement légèrement courbe, qui peut notamment correspondre à la courbure d'un couvercle de fermoir. En variante, ce déplacement pourrait être une articulation comme une rotation par exemple.In addition, the relative movement of the two components of the watch device is advantageously a translation, possibly a slightly curved sliding, which can in particular correspond to the curvature of a clasp cover. Alternatively, this movement could be an articulation such as a rotation for example.

Ainsi, un élément de guidage d'un composant mobile peut être tout moyen permettant le déplacement relatif d'un premier composant 1 relativement à un deuxième composant 21.Thus, a guiding element of a mobile component can be any means allowing the relative movement of a first component 1 relative to a second component 21.

Selon un deuxième mode de réalisation représenté par la figure 7, le premier composant 1 peut être une lame de fermoir, agencée pour se déplacer sensiblement en translation relativement à une deuxième lame de fermoir, représentant un deuxième composant 21, à l'instar des lames de fermoir décrites au sein du document EP0350785 .According to a second embodiment represented by the Figure 7 , the first component 1 can be a clasp blade, arranged to move substantially in translation relative to a second clasp blade, representing a second component 21, like the clasp blades described within the document EP0350785 .

Selon un troisième mode de réalisation représenté par la figure 8, le premier composant 1 peut se présenter sous la forme d'une demi-maille d'une maille prévue pour se déplacer relativement à une deuxième demi-maille de ladite maille, représentant un deuxième composant 21, de manière similaire aux demi-mailles décrites dans le document WO2014114404 .According to a third embodiment represented by the figure 8 , the first component 1 can be in the form of a half-mesh of a mesh intended to move relative to a second half-mesh of said mesh, representing a second component 21, in a manner similar to the half-mesh described in the document WO2014114404 .

Les modes de réalisation précédents permettent finalement d'atteindre les objets recherchés par l'utilisation d'un matériau appartenant à la famille des polyaryléthercétones (PAEK) sur tout ou partie d'un élément de guidage, comme cela a été décrit.The preceding embodiments ultimately make it possible to achieve the desired objects by using a material belonging to the polyaryletherketone (PAEK) family on all or part of a guide element, as has been described.

Dans cette famille des polyaryléthercétones (PAEK), le matériau choisi peut être non chargé ou chargé. Une charge permet d'optimiser, entre autres, les caractéristiques tribologiques et mécaniques du composant. A titre d'exemple, la charge peut comprendre au moins des fibres de renfort et/ou un agent lubrifiant et/ou du graphite. En variante, la charge peut également comprendre au moins un pigment, notamment dans un but de coloration du composant.In this family of polyaryletherketones (PAEK), the material chosen can be unfilled or charged. A load makes it possible to optimize, among other things, the tribological and mechanical characteristics of the component. For example, the filler may comprise at least reinforcing fibers and/or a lubricating agent and/or graphite. Alternatively, the filler may also comprise at least one pigment, in particular for the purpose of coloring the component.

Selon des exemples de réalisation, le matériau choisi sera du PEAK, notamment du PEEK, du polyétherétheréthercétone (PEEEK), du polyéthercétone (PEK), du polyéthercétonecétone (PEKK) ou un copolymère de ces derniers et/ou un mélange de polymères. D'autre part, ce matériau polymère peut avantageusement comprendre au moins une charge de polytétrafluoroéthylène (PTFE), de sulfure de molybdène, de disulfure de tungstène, de nitrure de bore hexagonal, de fibres de carbone, de fibres d'aramide, de fibres de verre, de graphite, de graphène, de nanotubes de carbone, de polyimides, de sulfure de polyphénylène, de nanoparticules de diamant, de polysilsesquioxanes, de fibres de bore ou une combinaison de deux ou plusieurs de ces derniers. La liste précédente est naturellement non limitative.According to exemplary embodiments, the material chosen will be PEAK, in particular PEEK, polyetheretherketone (PEEEK), polyetherketone (PEK), polyetherketoneketone (PEKK) or a copolymer of the latter and/or a mixture of polymers. On the other hand, this polymer material can advantageously comprise at least one filler of polytetrafluoroethylene (PTFE), molybdenum sulfide, tungsten disulfide, hexagonal boron nitride, carbon fibers, aramid fibers, fibers glass, graphite, graphene, carbon nanotubes, polyimides, polyphenylene sulfide, diamond nanoparticles, polysilsesquioxanes, boron fibers or a combination of two or more of these. The preceding list is naturally non-limiting.

Selon un exemple de réalisation particulier, le matériau est du PEEK qui contient 20% de PTFE, par exemple du Victrex® 450FE20. Selon un autre exemple de réalisation, le matériau est du PEEK qui contient 30 % d'additif, notamment des fibres de carbone et/ou du graphite et/ou du PTFE. Selon un autre mode de réalisation, le matériau est du PEEK qui contient 30 % de fibres de carbone et des additifs additionnels, notamment du graphite et/ou du PTFE. En alternative ou en complément aux fibres de carbone, les fibres contenues au sein du PEEK peuvent être des fibres d'aramide ou des fibres de bore. Des exemples de PEAK ou de PEEK pouvant être utilisés sont, entre autres : Victrex® PEEK 450FC30, Ketron® HPV, Tekapeek® PVX, KetaSpire® KT-820 SL30, AKROTEKO PEAK CF30, AvaSpire® AV-651 CF30, AvaSpire® AV-722 SL30, AvaSpire® AV-755 SL45. En remarque, dans tous les cas, et notamment dans tous les modes de réalisation décrits, le polymère PEEK peut être remplacé par tout autre polymère de la famille PEAK.According to a particular embodiment, the material is PEEK which contains 20% PTFE, for example Victrex ® 450FE20. According to another embodiment, the material is PEEK which contains 30% additive, in particular carbon fibers and/or graphite and/or PTFE. According to another embodiment, the material is PEEK which contains 30% of carbon fibers and additional additives, in particular graphite and/or PTFE. As an alternative or in addition to carbon fibers, the fibers contained within PEEK can be aramid fibers or boron fibers. Examples of PEAK or PEEK that can be used are, among others: Victrex ® PEEK 450FC30, Ketron ® HPV, Tekapeek ® PVX, KetaSpire ® KT-820 SL30, AKROTEKO PEAK CF30, AvaSpire ® AV-651 CF30, AvaSpire ® AV- 722 SL30, AvaSpire® AV-755 SL45. As a note, in all cases, and in particular in all the embodiments described, the PEEK polymer can be replaced by any other polymer from the PEAK family.

Selon un mode particulier de réalisation, le composant comprend 65% de PEEK, 15% de fibres de carbone, 10% de PTFE, 8% de nanotubes de carbone, et 2% de nano-diamant.According to a particular embodiment, the component comprises 65% PEEK, 15% carbon fibers, 10% PTFE, 8% carbon nanotubes, and 2% nano-diamond.

L'élément ou la partie de l'élément en matériau appartenant à la famille des polyaryléthercétones (PAEK) est fabriqué par tout procédé ou combinaison de procédés connu de l'homme du métier. Selon une variante de réalisation, la surface du composant ou de la partie de composant en matériau appartenant à la famille des polyaryléthercétones (PAEK) peut être structurée, en particulier micro-structurée, notamment dans le but de mettre en forme un premier élément dans le but d'optimiser le comportement tribologique et/ou à l'usure de la surface en PEAK ou de permettre une meilleure distribution d'un lubrifiant. Cette structuration peut être obtenue directement lors du moulage de la pièce ou ultérieurement par usinage ou micro-usinage, par exemple par texturation laser (en anglais laser surface texturing ou LST) ou par gravure chimique. Toute autre technique ou combinaison de techniques peut aussi être mise en oeuvre pour obtenir une structuration ou une micro-structuration.The element or part of the element made of material belonging to the polyaryletherketone (PAEK) family is manufactured by any process or combination of processes known to those skilled in the art. According to an alternative embodiment, the surface of the component or part of a component made of material belonging to the polyaryletherketone (PAEK) family can be structured, in particular micro-structured, in particular with the aim of shaping a first element in the aim of optimizing the tribological and/or wear behavior of the PEAK surface or allowing better distribution of a lubricant. This structuring can be obtained directly during molding of the part or subsequently by machining or micro-machining, for example by laser texturing (in English laser surface texturing or LST) or by chemical etching. Any other technique or combination of techniques can also be implemented to obtain structuring or micro-structuring.

Selon une réalisation particulière de l'invention, il a été vu que l'élément de guidage ou la partie de l'élément de guidage, qui peut être une pièce en polymère ou en métal, est revêtue au moins partiellement avec un revêtement comprenant un matériau appartenant à la famille des polyaryléthercétones (PAEK), notamment du PEEK. Dans une telle réalisation, le revêtement peut être appliqué en utilisant des techniques de pulvérisation par dispersion conventionnelles, des techniques de projection électrostatiques ou du surmoulage. Un revêtement peut également être appliqué sur un élément selon l'un des modes de réalisation précédents avec ou sans micro-structuration de la surface dudit composant : par exemple un revêtement DLC ou toute autre technique de revêtement appropriée. Une micro-structuration de la surface peut également être effectuée après application du revêtement.According to a particular embodiment of the invention, it has been seen that the guide element or the part of the guide element, which can be a part made of polymer or metal, is coated at least partially with a coating comprising a material belonging to the polyaryletherketone (PAEK) family, in particular PEEK. In such an embodiment, the coating may be applied using conventional dispersion spray techniques, electrostatic spray techniques or overmolding. A coating can also be applied to an element according to one of the preceding embodiments with or without micro-structuring of the surface of said component: for example a DLC coating or any other appropriate coating technique. Micro-structuring of the surface can also be carried out after application of the coating.

En complément, le déplacement relatif de deux composants mobiles d'un dispositif horloger nécessite aussi avantageusement un dispositif d'indexation, qui permet de prédéterminer certains positionnements stables relatifs desdits deux composants mobiles. Un tel dispositif d'indexation est mis en oeuvre par l'intermédiaire d'éléments d'indexation de chacun des deux composants mobiles. Un problème technique qui se pose est de pouvoir combiner au mieux ce dispositif d'indexation avec le dispositif de guidage des deux composants mobiles.In addition, the relative movement of two mobile components of a watch device also advantageously requires an indexing device, which makes it possible to predetermine certain relative stable positionings of said two mobile components. Such an indexing device is implemented via indexing elements of each of the two mobile components. A technical problem which arises is to be able to best combine this indexing device with the guiding device of the two moving components.

Les figures 9 et 10 décrivent ainsi un quatrième mode de réalisation de l'invention, dans lequel un élément de guidage 10 du premier composant 1 comporte au moins un premier élément d'indexation 15, qui est prévu pour coopérer avec un deuxième élément d'indexation 35 du deuxième composant 21. Ce quatrième mode de réalisation concerne un dispositif de rallonge d'un bracelet, semblable à celui du premier mode de réalisation, mais comprenant un dispositif d'indexation. Pour cela, une maille de rallonge 2 d'un premier composant 1 est mobile relativement à un couvercle de fermoir. Des billes rappelées élastiquement sont prévues à l'extrémité des mailles pour coopérer avec des crans jouxtant une glissière du couvercle de fermoir ; chaque cran, de par sa possibilité de loger temporairement une bille élastique, correspond à une position prédéfinie d'une maille de réglage relativement au couvercle. Ce dispositif met donc bien en oeuvre une indexation de la position des deux composants.THE figures 9 and 10 thus describe a fourth embodiment of the invention, in which a guide element 10 of the first component 1 comprises at least a first indexing element 15, which is intended to cooperate with a second indexing element 35 of the second component 21. This fourth embodiment concerns a device for extending a bracelet, similar to that of the first embodiment, but comprising an indexing device. For this, an extension mesh 2 of a first component 1 is movable relative to a cover of clasp. Elastically recalled balls are provided at the end of the links to cooperate with notches adjoining a slide of the clasp cover; each notch, due to its possibility of temporarily housing an elastic ball, corresponds to a predefined position of an adjustment mesh relative to the cover. This device therefore effectively implements indexing of the position of the two components.

Dans ce mode de réalisation, un patin en PEEK forme toujours un élément de guidage du premier composant. Ce patin se présente en forme de U, dont les deux flancs sont respectivement prévus pour se déplacer dans deux portions haute et basse d'une glissière se présentant sous la forme de deux rainures parallèles haute et basse. Les billes formant l'élément d'indexation sont agencées entre les deux flancs du U, et sont aptes à se loger dans des crans agencés entre les deux rainures formant le deuxième élément de guidage 30. Ces crans forment le deuxième élément d'indexation.In this embodiment, a PEEK pad always forms a guiding element of the first component. This pad is in the shape of a U, the two sides of which are respectively designed to move in two upper and lower portions of a slide in the form of two parallel upper and lower grooves. The balls forming the indexing element are arranged between the two sides of the U, and are able to be housed in notches arranged between the two grooves forming the second guide element 30. These notches form the second indexing element.

On note que dans ce mode de réalisation, les éléments d'indexation sont agencés à proximité des éléments de guidage, de manière combinée mais relativement indépendante.Note that in this embodiment, the indexing elements are arranged near the guide elements, in a combined but relatively independent manner.

Alternativement ou complémentairement, le premier élément d'indexation 15 peut être supporté par le premier élément de guidage 10. A titre d'exemple, la figure 11 illustre un élément de guidage 10 du premier composant 1 qui comprend des éléments d'indexation 15 se présentant sous la forme de saillies directement pratiquées sur l'élément de guidage, notamment un patin monobloc. Comme représenté sur la figure 9, ces saillies peuvent présenter une conformation hémisphérique. En alternative, ces saillies peuvent présenter toute autre géométrie, telle qu'une géométrie rectangulaire et/ou allongée. Ces saillies sont prévues pour coopérer avec un deuxième élément d'indexation 35 se présentant sous la forme d'une succession de crans disposés au sein d'une glissière d'un couvercle de fermoir, comme représenté par la figure 12. Dans ce mode de réalisation, les saillies sont réalisées dans le matériau de l'élément de guidage, par exemple en PEAK, notamment en PEEK, puisque l'ensemble est monobloc. Alternativement, les saillies peuvent être faites dans un autre matériau, et peuvent notamment être formées sur un patin dont au moins une portion est faite ou est revêtue de PEAK.Alternatively or complementary, the first indexing element 15 can be supported by the first guide element 10. For example, the Figure 11 illustrates a guide element 10 of the first component 1 which comprises indexing elements 15 in the form of projections directly made on the guide element, in particular a one-piece pad. As shown on the Figure 9 , these projections can have a hemispherical conformation. Alternatively, these projections may have any other geometry, such as a rectangular and/or elongated geometry. These projections are intended to cooperate with a second indexing element 35 in the form of a succession of notches arranged within a slide of a cover of clasp, as shown by the Figure 12 . In this embodiment, the projections are made from the material of the guide element, for example PEAK, particularly PEEK, since the assembly is in one piece. Alternatively, the projections can be made of another material, and can in particular be formed on a pad of which at least a portion is made or is coated with PEAK.

En remarque, le dispositif d'indexation décrit ci-dessus peut être combiné à un dispositif d'indexation complémentaire d'une maille de bracelet relativement à un couvercle de fermoir, c'est-à-dire qu'il peut venir en complément d'un système d'indexation conventionnel, tel qu'un système d'indexation à barrette ou un système d'indexation à billes mettant notamment en oeuvre une denture 35' telle que celle représentée sur la figure 12.As a note, the indexing device described above can be combined with a complementary indexing device of a bracelet link relative to a clasp cover, that is to say it can complement 'a conventional indexing system, such as a bar indexing system or a ball indexing system using in particular a toothing 35' such as that shown in the Figure 12 .

Ainsi, l'invention porte aussi sur un dispositif horloger, notamment un dispositif d'habillage horloger, comprenant deux composants 1, 21 liés entre eux, le premier composant 1 comprenant un premier élément de guidage 10 et le deuxième composant 21 comprenant un deuxième élément de guidage 30, les deux composants étant liés entre eux de manière mobile par une coopération de leurs éléments de guidage 10, 30 respectifs, et caractérisé en ce que le premier composant 1 comprend un premier élément d'indexation 15 qui coopère avec un deuxième élément d'indexation du deuxième composant 21.Thus, the invention also relates to a watch device, in particular a watch dressing device, comprising two components 1, 21 linked together, the first component 1 comprising a first guide element 10 and the second component 21 comprising a second element guide 30, the two components being linked together in a movable manner by cooperation of their respective guide elements 10, 30, and characterized in that the first component 1 comprises a first indexing element 15 which cooperates with a second element indexing of the second component 21.

En remarque, le crantage formant un premier élément d'indexation vient en complément ou en alternative au crantage connu de l'état de l'art, par exemple le crantage 35' de la figure 10.As a note, the notching forming a first indexing element comes in addition to or as an alternative to the notching known from the state of the art, for example the notching 35' of the Figure 10 .

Un élément d'indexation peut former un ensemble monobloc avec un élément de guidage, ou un élément distinct agencé à proximité d'un élément de guidage, par exemple par une bille élastique ou saillie disposée entre deux nervures de guidage.An indexing element can form a single piece assembly with a guide element, or a separate element arranged near an element guide, for example by an elastic ball or projection placed between two guide ribs.

Il apparaît que ces éléments d'indexation sont soumis à des contraintes très proches de celles subies par les éléments de guidage. Ainsi, ils peuvent avantageusement eux aussi comprendre un matériau polymère appartenant à la famille des polyaryléthercétones (PAEK).It appears that these indexing elements are subject to stresses very close to those experienced by the guide elements. Thus, they can also advantageously comprise a polymer material belonging to the polyaryletherketone (PAEK) family.

En variante, le premier élément d'indexation 15 peut être mis en oeuvre indépendamment du premier élément de guidage 10.Alternatively, the first indexing element 15 can be implemented independently of the first guide element 10.

Ainsi, l'invention porte aussi sur un dispositif horloger, notamment un dispositif d'habillage horloger, comprenant deux composants 1, 21 liés entre eux, le premier composant 1 comprenant un premier élément d'indexation 15 et le deuxième composant 21 comprenant un deuxième élément d'indexation 35, les deux composants étant liés entre eux de manière mobile, et caractérisé en ce que le premier élément d'indexation 15 et/ou le deuxième élément d'indexation 35 comprend une surface de contact, comprenant un matériau polymère appartenant à la famille des polyaryléthercétones (PAEK).Thus, the invention also relates to a watch device, in particular a watch dressing device, comprising two components 1, 21 linked together, the first component 1 comprising a first indexing element 15 and the second component 21 comprising a second indexing element 35, the two components being linked together in a movable manner, and characterized in that the first indexing element 15 and/or the second indexing element 35 comprises a contact surface, comprising a polymer material belonging to to the polyaryletherketone (PAEK) family.

En complément des solutions précédentes, le premier élément de guidage 10 peut comporter au moins un élément de canalisation 17 d'un lubrifiant. A titre d'exemple, la figure 13 représente une vue d'une face latérale d'un élément de guidage 10 d'un premier composant selon un cinquième mode de réalisation de l'invention, comprenant des canaux ou rainures prévues pour être gorgées d'un lubrifiant : ces rainures forment ainsi un élément de canalisation 17 d'un lubrifiant. Selon ce mode de réalisation, ces canaux sont usinés directement sur un patin formant un élément de guidage du premier composant, et de ce fait sont au moins partiellement en PEEK ou revêtus au moins partiellement de PEEK. Alternativement, ces canaux peuvent être obtenus différemment, et peuvent être agencés sur un élément de guidage en tout autre matériau. Finalement, un élément de guidage selon l'invention peut être lubrifié ou non. Avantageusement, si le moyen de guidage est lubrifié, un lubrifiant perfluoré peut être utilisé.In addition to the previous solutions, the first guide element 10 may comprise at least one channeling element 17 of a lubricant. As an example, the Figure 13 represents a view of a side face of a guide element 10 of a first component according to a fifth embodiment of the invention, comprising channels or grooves intended to be filled with a lubricant: these grooves thus form a pipe element 17 of a lubricant. According to this embodiment, these channels are machined directly on a pad forming a guide element of the first component, and therefore are at least partially made of PEEK or coated at least partially with PEEK. Alternatively, these channels can be obtained differently, and can be arranged on a guide element made of any other material. Finally, a guide element according to the invention can be lubricated or not. Advantageously, if the guide means is lubricated, a perfluorinated lubricant can be used.

Ainsi, l'invention porte aussi sur un dispositif horloger, notamment un dispositif d'habillage horloger, comprenant deux composants 1, 21 liés entre eux, le premier composant 1 comprenant un premier élément de guidage 10 et le deuxième composant 21 comprenant un deuxième élément de guidage 30, les deux composants étant liés entre eux de manière mobile par une coopération de leurs éléments de guidage 10, 30 respectifs, et caractérisé en ce que l'élément de guidage 10 du premier composant 1 comprend un élément de canalisation 17 d'un lubrifiant.Thus, the invention also relates to a watch device, in particular a watch dressing device, comprising two components 1, 21 linked together, the first component 1 comprising a first guide element 10 and the second component 21 comprising a second element guide 30, the two components being linked together in a movable manner by cooperation of their respective guide elements 10, 30, and characterized in that the guide element 10 of the first component 1 comprises a channeling element 17 of a lubricant.

L'invention a été décrite à partir d'un dispositif de rallonge de bracelet. Comme cela a été mentionné, elle s'applique naturellement à tout dispositif horloger comprenant deux composants mobiles.The invention has been described based on a bracelet extension device. As has been mentioned, it naturally applies to any watch device comprising two moving components.

De plus, l'invention porte aussi sur un bracelet et/ou un fermoir et/ou une montre bracelet et/ou un dispositif d'habillage horloger, qui intègre(nt) au moins un dispositif horloger tel que décrit précédemment.In addition, the invention also relates to a bracelet and/or a clasp and/or a wristwatch and/or a watch dressing device, which integrate(s) at least one watch device as described above.

Claims (16)

  1. A watch device, more particularly an external watch device, excepted a crown, comprising two external components (1, 21) linked to one another, the first component (1) comprising a first guiding element (10) and the second component (21) comprising a second guiding element (30), the two components being linked to one another in a movable manner by the cooperation of their respective guiding elements (10, 30), the first guiding element (10) comprising a guiding surface in contact at least partially with the second guiding element (30), the two respective guiding elements (10, 30) of said two components being adapted to permit relative sliding of the two components, more particularly according to a translational movement or a substantially translational movement, characterized in that said guiding surface comprises a polymer material belonging to the family of polyaryl ether ketones (PAEK).
  2. The watch device as claimed in the preceding claim, characterized in that the first guiding element is in the form of a roller or a shoe, cooperating with the second guiding element in the form of a slide, a runner, a cutout, a bore or a groove, or in that the first guiding element is in the form of a slide, a runner, a cutout, a bore or a groove, cooperating with the second guiding element in the form of a roller or a shoe.
  3. The watch device as claimed in one of the preceding claims, characterized in that the first guiding element is in a single piece, formed integrally from a polymer material belonging to the PAEK family.
  4. The watch device as claimed in one of claims 1 or 2, characterized in that the first guiding element (10) comprises a core covered with a coating comprising the polymer material belonging to the PEAK family forming said guiding surface.
  5. The watch device according to claim 3, characterized in that the first component (1) and the first guiding element (10) form an assembly in a single piece, in a polymer material belonging to the PAEK family.
  6. The watch device as claimed in one of claims 1 to 4, characterized in that the first component (1) and the first guiding element (10) are two separate elements.
  7. The watch device as claimed in one of the preceding claims, characterized in that the second guiding element (30) also comprises a guiding surface comprising a polymer material belonging to the PAEK family in contact at least partially with the first guiding element (10).
  8. The watch device as claimed in one of the preceding claims, characterized in that the first guiding element (10) and/or the first component (1) comprises a first indexing element (15) adapted to cooperate with a second indexing element (35) of the second component.
  9. The watch device as claimed in the preceding claim, characterized in that the first guiding element (10) and the first indexing element (15) form an assembly in a single piece.
  10. The watch device as claimed in one of the preceding claims, characterized in that the first guiding element (10) comprises an element for channeling a lubricant (17), more particularly in the form of grooves positioned in the guiding surface of the first guiding element.
  11. The watch device, characterized in that:
    - the watch device is an extension device for a watch bracelet the first component being an extension link and the second component being a cover or a component of a clasp, or vice versa; or
    - the watch device is a link, the first component being a first half-link of said link and the second component being a second half-link of said link; or
    - the watch device is an external watch device for a wristwatch, the first component being a first external element of a watch and the second component being a second external element of a watch.
  12. The watch device as claimed in one of the preceding claims, characterized in that the polymer material belonging to the PEAK family is made from PEEK, and/or in that the PEAK polymer material comprises a filler charge, said filler charge comprising at least reinforcement fibers and/or a lubricating agent and/or graphite.
  13. The watch device as claimed in one of the preceding claims, characterized in that the second component (21) and/or the second guiding element (30) is made from a ceramic material or from a metallic material or a metallic alloy, more particularly from steel, from gold or from platinum.
  14. A clasp having deployant blades for a watch bracelet, characterized in that it comprises a watch device as claimed in one of the preceding claims.
  15. A bracelet, characterized in that it comprises a watch device as claimed in one of claims 1 to 13.
  16. A timepiece, more particularly a wristwatch, characterized in that it comprises a watch device as claimed in one of claims 1 to 13.
EP18157057.3A 2018-02-16 2018-02-16 Timepiece device such as a cover with movable components Active EP3527101B1 (en)

Priority Applications (10)

Application Number Priority Date Filing Date Title
EP18157057.3A EP3527101B1 (en) 2018-02-16 2018-02-16 Timepiece device such as a cover with movable components
US16/266,449 US20190254391A1 (en) 2018-02-16 2019-02-04 Watch device having movable components
JP2019019240A JP2019166308A (en) 2018-02-16 2019-02-06 Watch device having movable components
PCT/EP2019/053281 WO2019158471A1 (en) 2018-02-16 2019-02-11 Device for adjusting the length of a bracelet
JP2020543532A JP2021513885A (en) 2018-02-16 2019-02-11 Bracelet length adjustment device
EP19702931.7A EP3752024A1 (en) 2018-02-16 2019-02-11 Device for adjusting the length of a bracelet
CN201980013465.1A CN111726998B (en) 2018-02-16 2019-02-11 Device for adjusting the length of a wristband
US16/963,619 US11388961B2 (en) 2018-02-16 2019-02-11 Device for adjusting the length of a bracelet
CN201910117654.5A CN110150805A (en) 2018-02-16 2019-02-15 Meter apparatus with movable link
JP2024008094A JP2024038465A (en) 2018-02-16 2024-01-23 Small clock device with moving parts

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP18157057.3A EP3527101B1 (en) 2018-02-16 2018-02-16 Timepiece device such as a cover with movable components

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EP3527101A1 EP3527101A1 (en) 2019-08-21
EP3527101B1 true EP3527101B1 (en) 2024-03-06

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EP18157057.3A Active EP3527101B1 (en) 2018-02-16 2018-02-16 Timepiece device such as a cover with movable components
EP19702931.7A Pending EP3752024A1 (en) 2018-02-16 2019-02-11 Device for adjusting the length of a bracelet

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EP19702931.7A Pending EP3752024A1 (en) 2018-02-16 2019-02-11 Device for adjusting the length of a bracelet

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EP (2) EP3527101B1 (en)
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CN110150805A (en) 2019-08-23
WO2019158471A1 (en) 2019-08-22
EP3527101A1 (en) 2019-08-21
JP2021513885A (en) 2021-06-03
CN111726998B (en) 2023-11-21
US20190254391A1 (en) 2019-08-22
US11388961B2 (en) 2022-07-19
CN111726998A (en) 2020-09-29
US20210059363A1 (en) 2021-03-04
JP2019166308A (en) 2019-10-03
EP3752024A1 (en) 2020-12-23
JP2024038465A (en) 2024-03-19

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