EP3752024A1 - Device for adjusting the length of a bracelet - Google Patents
Device for adjusting the length of a braceletInfo
- Publication number
- EP3752024A1 EP3752024A1 EP19702931.7A EP19702931A EP3752024A1 EP 3752024 A1 EP3752024 A1 EP 3752024A1 EP 19702931 A EP19702931 A EP 19702931A EP 3752024 A1 EP3752024 A1 EP 3752024A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- bracelet
- indexing
- guide
- cover
- extension device
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000000463 material Substances 0.000 claims description 32
- 229920006260 polyaryletherketone Polymers 0.000 claims description 30
- 239000011248 coating agent Substances 0.000 claims description 10
- 238000000576 coating method Methods 0.000 claims description 10
- 210000000707 wrist Anatomy 0.000 claims description 7
- 230000001939 inductive effect Effects 0.000 claims description 3
- 239000002861 polymer material Substances 0.000 claims description 3
- 229920002530 polyetherether ketone Polymers 0.000 description 21
- 239000004696 Poly ether ether ketone Substances 0.000 description 20
- 229920000642 polymer Polymers 0.000 description 11
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 7
- 238000000034 method Methods 0.000 description 7
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 6
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 6
- 239000004810 polytetrafluoroethylene Substances 0.000 description 6
- 229920000049 Carbon (fiber) Polymers 0.000 description 5
- 239000004917 carbon fiber Substances 0.000 description 5
- 230000000295 complement effect Effects 0.000 description 4
- 239000000835 fiber Substances 0.000 description 4
- 229910002804 graphite Inorganic materials 0.000 description 4
- 239000010439 graphite Substances 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 3
- 239000000919 ceramic Substances 0.000 description 3
- 238000006073 displacement reaction Methods 0.000 description 3
- 239000000945 filler Substances 0.000 description 3
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 3
- 229910052737 gold Inorganic materials 0.000 description 3
- 239000010931 gold Substances 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 229910052697 platinum Inorganic materials 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 2
- 239000000654 additive Substances 0.000 description 2
- 239000004760 aramid Substances 0.000 description 2
- 229920006231 aramid fiber Polymers 0.000 description 2
- 229910052796 boron Inorganic materials 0.000 description 2
- 239000002041 carbon nanotube Substances 0.000 description 2
- 229910021393 carbon nanotube Inorganic materials 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 239000000314 lubricant Substances 0.000 description 2
- 229920001652 poly(etherketoneketone) Polymers 0.000 description 2
- 229920013689 Akrotek Polymers 0.000 description 1
- 229910000497 Amalgam Inorganic materials 0.000 description 1
- 229910052582 BN Inorganic materials 0.000 description 1
- PZNSFCLAULLKQX-UHFFFAOYSA-N Boron nitride Chemical compound N#B PZNSFCLAULLKQX-UHFFFAOYSA-N 0.000 description 1
- 206010010904 Convulsion Diseases 0.000 description 1
- 208000002513 Flank pain Diseases 0.000 description 1
- 229920008285 Poly(ether ketone) PEK Polymers 0.000 description 1
- 229930182556 Polyacetal Natural products 0.000 description 1
- 239000004642 Polyimide Substances 0.000 description 1
- 239000004734 Polyphenylene sulfide Substances 0.000 description 1
- 229920004708 VICTREX® PEEK 450FC30 Polymers 0.000 description 1
- 229920004695 VICTREX™ PEEK Polymers 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 238000004026 adhesive bonding Methods 0.000 description 1
- 238000005219 brazing Methods 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000003486 chemical etching Methods 0.000 description 1
- 238000004040 coloring Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 239000010432 diamond Substances 0.000 description 1
- 229910003460 diamond Inorganic materials 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000007590 electrostatic spraying Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 229910021389 graphene Inorganic materials 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000005459 micromachining Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000002113 nanodiamond Substances 0.000 description 1
- 239000002105 nanoparticle Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 229920001721 polyimide Polymers 0.000 description 1
- 229920006324 polyoxymethylene Polymers 0.000 description 1
- 229920000069 polyphenylene sulfide Polymers 0.000 description 1
- 229920000734 polysilsesquioxane polymer Polymers 0.000 description 1
- -1 polytetrafluoroethylene Polymers 0.000 description 1
- 239000012783 reinforcing fiber Substances 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- PTISTKLWEJDJID-UHFFFAOYSA-N sulfanylidenemolybdenum Chemical compound [Mo]=S PTISTKLWEJDJID-UHFFFAOYSA-N 0.000 description 1
- 210000004243 sweat Anatomy 0.000 description 1
- ITRNXVSDJBHYNJ-UHFFFAOYSA-N tungsten disulfide Chemical compound S=[W]=S ITRNXVSDJBHYNJ-UHFFFAOYSA-N 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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
- A44C5/0053—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
-
- 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
-
- 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 device for adjusting the length of a bracelet, comprising a particular guiding and fastening system for a bracelet, particularly adapted to a bracelet for a wristwatch provided with an extension device and / or provided with a clasp with folding blades disposed between two ends of the bracelet. It also relates to a clasp and a bracelet as such, incorporating such a device for adjusting the length of a bracelet, as well as on a wristwatch as such comprising such a device. State of the art
- a folding blade clasp of the state of the art intended to hang the two strands of a watch strap around the wrist of its wearer, comprises several articulated blades, which can occupy a first closed position, and a second position opening, in which the blades are no longer hung and allow the insertion or removal of the bracelet.
- Such a clasp is generally provided with a first adjustment of its positioning relative to the bracelet, said conventional setting.
- the final length obtained is often not optimal.
- a general object of the invention is to further improve the approval of the adjustment of the length of a bracelet.
- the invention proposes a solution for adjusting the length of a bracelet, whose operation is reliable and the intuitive and user-friendly operation.
- the mobile components of a watch device in particular a device for adjusting the length of a bracelet, are equipped with guide elements that are subject to numerous constraints, among which:
- the second objective of the invention is to provide a solution that makes it possible to best meet the aforementioned constraints.
- a second object of the invention is to provide a guiding solution for mobile components of a clock device, to limit the wear of the guiding elements, to reduce their friction, to reduce the risk of seizure and their corrosion, to limit or even prevent the deposition and / or amalgam of soiling in the guide elements.
- the invention is based on a bracelet extension device, comprising at least one movable adjustment assembly relative to a clasp cover, the adjustment assembly and the cover being respectively provided with a first and a second fixing elements for their respective fixing according to several positions capable of inducing different lengths of bracelet, characterized in that the adjustment assembly and the lid are further provided respectively with a first and a second indexing elements.
- Figure 1 shows a perspective view of a clasp cover incorporating a device for adjusting the length of a bracelet according to one embodiment of the invention.
- Figure 2 shows a sectional view along a longitudinal plane of a clasp cover incorporating the device for adjusting the length of a bracelet according to the embodiment of the invention.
- FIG 3 shows a sectional view along a transverse plane of the clasp cover at the level of the length adjustment device of the bracelet according to the embodiment of the invention.
- FIG. 4 represents a perspective view of a clasp cover incorporating the device for adjusting the length of a bracelet according to the embodiment of the invention in a phase of handling a link of the adjustment device.
- FIG. 5 represents a perspective view of a guide element of the device for adjusting the length of a bracelet according to the embodiment of the invention.
- FIG. 6 represents a sectional view of a first embodiment of the guiding element of the device for adjusting the length of a bracelet according to the embodiment of the invention.
- FIG. 7 shows a sectional view of a second embodiment of the guide element of the length adjustment device of a bracelet according to the embodiment of the invention.
- FIG. 8 represents a variant embodiment of a sub-part of the device for adjusting the length of a bracelet according to the embodiment of the invention.
- FIG. 9 represents another alternative embodiment of a sub-part of the device for adjusting the length of a bracelet according to the embodiment of the invention.
- Such a device for adjusting the length of a bracelet comprises two side mesh 2 extension arranged around a bar 3, and a mesh 1 mounted rotatably around this bar 3.
- the two side mesh 2 extension are movable relative to a lid 21 of the clasp.
- This set comprising the mesh 1 and the two side stitches 2 arranged on a bar 3 forms a set of adjustment of the device for adjusting the length of a bracelet.
- the adjustment assembly may take another form than that of this embodiment. It can be monoblock, in a single component, or advantageously include an assembly of several components.
- the cover 21 comprises two lateral walls 22 each comprising a slideway. Each slide forms a second guide element 30, which cooperates with a first guide element 10 positioned at the ends of the web 3.
- the adjustment assembly also comprises a first guide element 10.
- the first guide element 10 is advantageously in the form of a shoe or a roller or a ball and the second guide element 30 in the form of a slide or a slide, or a bore, or a cutout, or a groove, shaped to receive such a pad or such a roller or such a ball.
- the pads or rollers or balls arranged at each end of the bar 3 thus slide parallel, in their respective opposite rails, in a movement substantially corresponding to a translation.
- the first guide element 10 is in the form of an element distinct from the meshes 1, 2.
- two pads with slightly arched profiles are arranged respectively on either side of the two lateral meshes 2, and are assembled to these side meshes 2 through the bar 3.
- the pads comprise a central bore 11 provided for their positioning around a cylindrical receiving member 4 at the end of the bar 3, as is particularly visible in Figure 3.
- the bar 3 comprises an annular central portion 33 in which is arranged a spring 34, which exerts an elastic thrust force on the cylindrical receiving elements 4 positioned at the end of the bar 3, and indirectly on the first guide elements 10 in the direction of the cover 21, and more precisely towards the side walls 22 of the cover 21.
- the first guide elements 10 that is to say the pads or rollers or balls, are monobloc.
- they are entirely composed of a high performance polymer, belonging to the family of polyaryletherketones (PAEK), especially polyetheretherketone (PEEK).
- PAEK polyaryletherketones
- PEEK polyetheretherketone
- the first guide elements 10 could only comprise a portion of a high performance polymer, belonging to the family of polyaryletherketones (PAEK), including PEEK.
- this portion could be at a guiding surface intended to come into contact with the second guiding element 30, that is to say the slide or the slide.
- This portion can thus take the form of a surface coating at the contact zones or friction zones.
- a PEEK conformation may be formed around a pad, in particular overmolded on a pad.
- 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.
- these guide elements 10 could be in another material, for example metal.
- FIG. 8 shows an alternative embodiment in which the first guide element 10 is directly attached to a lateral mesh 2.
- fixing studs 12 are provided on a lateral face of the first guide element 10 to be driven into bores of an extensional side mesh 2.
- This attachment can, for example, be implemented by driving, riveting, gluing, welding or brazing.
- the guide element 10 comprises a guide surface 13 on its second lateral face.
- a lateral mesh 2 may comprise a projection, in particular a circular or oblong protrusion, which acts as a pad.
- This projection is formed on a flank of said mesh 2 and forms the element of guide 10 of the adjustment assembly.
- the mesh 2 is monoblock. It can be made of a high performance polymer, especially a polymeric material belonging to the family of polyaryletherketones (PAEK), in particular PEEK.
- PAEK polyaryletherketones
- the projection may be overmolded on one side of the side mesh 2.
- the projection may be coated with PEAK, for example PEEK, over all or part of its surface.
- a guide member 30 of the cover 21 could also include a material belonging to the polyaryletherketone (PAEK) family.
- PAEK polyaryletherketone
- any one of the two guiding elements 10, 30 may comprise all or part of a material belonging to the family of polyaryletherketones (PAEK) on all or part of its guiding surface.
- the two guide elements may comprise such a material or any other material.
- the second guide member 30 may be made of steel or precious material, such as gold or platinum.
- the second guide member 30 may be made of ceramic. More particularly, it may come from material with a ceramic or steel lid or precious material, such as gold or platinum.
- the second guide element 30 may alternatively be made of a high performance polymer, in particular a polymeric material belonging to the family of polyaryletherketones (PAEK), in particular PEEK. More particularly, it can come from material with the lid of the clasp entirely made of PEEK.
- PAEK polyaryletherketones
- the second guide member 30 may be attached to the cover preferably made of steel or precious material, such as gold or platinum.
- the second guide member 30 may be attached to a ceramic cover.
- the clasp cover is provided with slides disposed in side walls formed on either side of said cover.
- the lid is in one piece. It can be entirely composed of a high performance polymer, in particular PEEK.
- the slides may be coated with a polymer material belonging to the family of polyaryletherketones (PAEK), including PEEK, on all or part of their surface.
- PAEK polyaryletherketones
- the entire cover may be of another material, for example a metal.
- the selected material may 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, especially for the purpose of coloring the component.
- the material chosen will be PEAK, in particular PEEK, polyetheretheretherketone (PEEEK), polyetherketone (PEK), polyetherketoneketone (PEKK) or a co-polymer thereof and / or a mixture of polymers.
- this polymeric material may advantageously comprise at least one filler of polytetrafluoroethylene (PTFE), molybdenum sulphide, tungsten disulphide, hexagonal boron nitride, carbon fibers, aramid fibers and fibers.
- PTFE polytetrafluoroethylene
- the material is PEEK which contains 20% PTFE, for example Victrex® 450FE20.
- the material is PEEK which contains 30% of 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 the PEEK may be aramid fibers or boron fibers.
- PEAK or PEEK that can be used include: Victrex® PEEK 450FC30, Ketron® HPV, Tekapeek® PVX, KetaSpire® KT-820 SL30, AKROTEK® PEAK CF30, AvaSpire® AV-651 CF30, AvaSpire® AV -722 SL30, AvaSpire® AV-755 SL45.
- the PEEK polymer can be replaced by any other polymer of the PEAK family.
- the component comprises 65% of PEEK, 15% of carbon fibers, 10% of PTFE, 8% of carbon nanotubes, and 2% of nano-diamond.
- the element or portion of the material element belonging to the family of polyaryletherketones (PAEK) is manufactured by any method or combination of methods known to those skilled in the art.
- the surface of the component or component part made of material belonging to the family of polyaryletherketones (PAEK) can be structured, in particular micro-structured, in particular with the aim of shaping a first element in the to further optimize the tribological behavior and / or wear of the PEAK surface or to allow a better distribution of a lubricant.
- This structuring can be obtained directly during the molding of the part or later by machining or micromachining, 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 may be a piece of polymer or metal, is coated at least partially with a coating comprising a material belonging to the family of polyaryletherketones (PAEK), in particular PEEK.
- PAEK polyaryletherketones
- the coating can be applied using conventional dispersion spraying techniques, electrostatic spraying techniques or overmolding.
- a coating may 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 suitable coating technique. Micro-structuring of the surface can also be performed after application of the coating.
- the relative displacement of the mesh 1 and the side mesh 2 of extension relative to the clasp comprises an indexing device which makes it possible to predetermine certain relative stable positions of this adjustment assembly relative to the clasp.
- an indexing device is implemented by means of indexing elements respectively of the adjustment assembly on the one hand and the clasp on the other hand.
- the first guide element 10 comprises a first indexing element 15.
- FIG. 5 illustrates a guide element 10 that comprises an indexing element 15 that is under the form of several protrusions directly practiced on the guide element, in particular a monoblock pad. These projections may have a hemispherical conformation. Alternatively, these projections may have any other geometry, such as rectangular and / or elongated geometry. These projections are provided to cooperate with a second indexing element 35 in the form of a succession of notches arranged within a slide forming the second guide element 30 of a clasp cover, as represented by the Figures 1 and 2.
- the projections are made in the material of the first guide element, for example PEAK, including PEEK, if the assembly is monobloc.
- the projections may be made of another material, and may in particular be formed on a pad of which at least a portion is made or is coated with PEAK.
- FIG. 6 represents a guiding element 10 in the form of a shoe, comprising a cylindrical opening in which is mounted an indexing element 15, distinct from the guiding element, advantageously by driving.
- This cylindrical opening 1 1 may be in line with that provided for mounting the guide member at the end of the bar 3, or a separate opening.
- FIG. 7 illustrates another variant in which a guide element 10, in the form of a pad, is formed, in particular overmoulded, around an indexing element 15, distinct from the guide element. This results in a result similar to that of Figure 6.
- the indexing element 15 may be implemented by a cylindrical receiving element 4 of the bar 3, in particular by an end of a cylindrical receiving element 4 of the bar 3, as represented by FIG. 9. To do this, the cylindrical receiving element 4 through the guide member 10 from one side to the other, in particular through a central bore 1 1 provided for the positioning of said guide member, in order to cooperate with the second indexing element 35.
- the first element The indexing 15 may be distinct from the guide element 10.
- the first indexing element 15 may be implemented by the bar 3.
- the indexing device described above can be combined with an indexing device complementary to a bracelet mesh with respect to a clasp cover, that is to say that it can be complementary to a conventional indexing system, such as a bar indexing system or a ball indexing system including implementing a toothing 35 'such as that shown in Figures 1 and 2.
- This indexing device Conventional actually performs the function of fastening device, movable in the longitudinal direction of the clasp, the adjustment assembly of the wrist length adjustment device.
- this movable fixing device is able to induce different lengths of bracelet.
- This fixing device may thus comprise a tooth 23 arranged on the mesh 1, subjected to a spring 24 exerting a force holding the tooth 23 against the corresponding toothing 35 'of the lid.
- the toothing 35 ' is arranged on the inner face of the top wall of the cover 21, perpendicular to the side walls 22 which comprise the second guiding devices 30 of the adjustment assembly, as well as the second element of the The tooth 23 and the toothing 35 'form fixing elements of the fixing device, respectively of the adjustment assembly and the cover.
- the second attachment element 35 'of the clasp cover 21 and the second indexing element 35 of the clasp cover 21 are arranged on two distinct faces of the cover 21. Any other arrangement could be conceivable. , preferably with the second fastener 35 'and the second indexing element 35 arranged in two different zones of the lid.
- the invention also relates to a bracelet extension device, comprising a mesh comprising a first guide element 10 and a clasp cover 21 comprising a second guide element 30, the mesh and the cover being linked together in a manner movable by a cooperation of their respective guide elements 10, 30, and characterized in that the mesh comprises a first indexing element 15 which cooperates with a second indexing element 35 of the cover 21.
- the notch forming a second indexing element complements the notching known from the state of the art, for example the notching 35 'particularly visible in Figure 2, forming a fixing device.
- the indexing device can thus form a prepositioning element, which assists the user during adjustment by allowing proper positioning of the adjustment assembly, in particular to act adequately on the fixing device.
- This indexing device is not sufficient for fixing the adjustment assembly, which can easily escape the various notches to allow adjustment. It does not fulfill a fixation function. It comes in addition to a separate fixing device, as described above.
- An indexing member may form a one-piece assembly with a guide member, or a separate member, arranged near or through a guide member.
- the indexing element may also be in the form of an assembly, such as a ball pawl comprising a ball resiliently biased by a spring, the latter being able in particular to complement or be able to replace the spring 34 of the bar 3 more particularly visible in Figure 3.
- the spring 34 cooperates with the first indexing element 15 so as to exert an elastic thrust force on the first indexing element 15 in the direction of a second indexing element 35 and to allow the release of the first and second indexing elements 15, 35 in the adjustment phase of the length of said bracelet.
- indexing elements are subject to constraints very close to those experienced by the guide elements.
- they can advantageously also include a polymeric material belonging to the family of polyaryletherketones (PAEK).
- PAEK polyaryletherketones
- they may include other materials.
- the first indexing element 15 may be implemented independently of the first guide element 10.
- the invention also relates to a bracelet extension device, comprising at least one mesh linked to a clasp cover, the mesh comprising a first indexing element 15 and the lid 21 of the clasp comprising a second indexing element 35, the two components being movably connected to each other, and characterized in that the first indexing element 15 and / or the second indexing element 35 comprises a contact surface, comprising a polymeric material belonging to the family of polyaryletherketones (PAEK).
- PAEK polyaryletherketones
- a user proceeds to the rotation of the mesh 1 of the adjustment assembly, in order to release the tooth 23 of a notch of the notch 35 'of the clasp, thus opening the fixing device of the adjustment set.
- This action can be performed by pulling on a bracelet strand in a suitable direction.
- the adjustment assembly thus reaches an open position allowing it to move longitudinally relative to the clasp, through the guide elements 10, 30 explained above.
- the adjustment assembly is successively positioned automatically in the different stable positions predefined by the indexing elements.
- These indexing elements are advantageously distributed in a step equal to the pitch of the fixing device, and in correspondence, so that each indexing element corresponds to a fixing position.
- the adjustment assembly is automatically positioned in the positions predefined by the indexing elements during its longitudinal movement, under the effect of an elastic element of the adjustment assembly, which facilitates the positioning. of the adjustment set at the different longitudinal locations possible, corresponding to different length settings allowed.
- the adjustment of the length of a bracelet thus becomes assisted and very user-friendly. If the user wishes to continue the adjustment, he continues the displacement of the adjustment assembly, and its effort allows the release of intermediate indexing elements encountered, against the force of the elastic element of the set of adjustment.
- the invention also relates to a bracelet and / or a clasp and / or a wristwatch, which incorporates (s) a bracelet extension device as described above.
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Adornments (AREA)
- Electric Clocks (AREA)
- Buckles (AREA)
- Bearings For Parts Moving Linearly (AREA)
- Lubricants (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
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 |
PCT/EP2019/053281 WO2019158471A1 (en) | 2018-02-16 | 2019-02-11 | Device for adjusting the length of a bracelet |
Publications (1)
Publication Number | Publication Date |
---|---|
EP3752024A1 true EP3752024A1 (en) | 2020-12-23 |
Family
ID=61231093
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
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 |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP18157057.3A Active EP3527101B1 (en) | 2018-02-16 | 2018-02-16 | Timepiece device such as a cover with movable components |
Country Status (5)
Country | Link |
---|---|
US (2) | US20190254391A1 (en) |
EP (2) | EP3527101B1 (en) |
JP (3) | JP2019166308A (en) |
CN (2) | CN111726998B (en) |
WO (1) | WO2019158471A1 (en) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
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-
2018
- 2018-02-16 EP EP18157057.3A patent/EP3527101B1/en active Active
-
2019
- 2019-02-04 US US16/266,449 patent/US20190254391A1/en active Pending
- 2019-02-06 JP JP2019019240A patent/JP2019166308A/en active Pending
- 2019-02-11 US US16/963,619 patent/US11388961B2/en active Active
- 2019-02-11 WO PCT/EP2019/053281 patent/WO2019158471A1/en unknown
- 2019-02-11 JP JP2020543532A patent/JP7527963B2/en active Active
- 2019-02-11 CN CN201980013465.1A patent/CN111726998B/en active Active
- 2019-02-11 EP EP19702931.7A patent/EP3752024A1/en active Pending
- 2019-02-15 CN CN201910117654.5A patent/CN110150805A/en active Pending
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- 2024-01-23 JP JP2024008094A patent/JP2024038465A/en active Pending
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US11388961B2 (en) | 2022-07-19 |
CN110150805A (en) | 2019-08-23 |
WO2019158471A1 (en) | 2019-08-22 |
US20210059363A1 (en) | 2021-03-04 |
JP7527963B2 (en) | 2024-08-05 |
JP2024038465A (en) | 2024-03-19 |
US20190254391A1 (en) | 2019-08-22 |
EP3527101A1 (en) | 2019-08-21 |
CN111726998A (en) | 2020-09-29 |
JP2021513885A (en) | 2021-06-03 |
JP2019166308A (en) | 2019-10-03 |
CN111726998B (en) | 2023-11-21 |
EP3527101B1 (en) | 2024-03-06 |
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