EP3276432B1 - Casing subassembly for a timepiece, watch or jewel - Google Patents

Casing subassembly for a timepiece, watch or jewel Download PDF

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Publication number
EP3276432B1
EP3276432B1 EP16181139.3A EP16181139A EP3276432B1 EP 3276432 B1 EP3276432 B1 EP 3276432B1 EP 16181139 A EP16181139 A EP 16181139A EP 3276432 B1 EP3276432 B1 EP 3276432B1
Authority
EP
European Patent Office
Prior art keywords
component
assembly
sub
exterior sub
ring
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
EP16181139.3A
Other languages
German (de)
French (fr)
Other versions
EP3276432A1 (en
Inventor
Pierry Vuille
Daniel Knuchel
Rocco Catanese
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.)
Omega SA
Original Assignee
Omega 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 Omega SA filed Critical Omega SA
Priority to CH00965/16A priority Critical patent/CH712740B1/en
Priority to EP16181139.3A priority patent/EP3276432B1/en
Priority to US15/654,056 priority patent/US10088806B2/en
Priority to JP2017141708A priority patent/JP6453949B2/en
Priority to CN201710610745.3A priority patent/CN107656434B/en
Publication of EP3276432A1 publication Critical patent/EP3276432A1/en
Priority to HK18109022.3A priority patent/HK1249593A1/en
Application granted granted Critical
Publication of EP3276432B1 publication Critical patent/EP3276432B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • G—PHYSICS
    • G04—HOROLOGY
    • G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
    • G04B37/00—Cases
    • G04B37/0008—Cases for pocket watches and wrist watches
    • 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
    • G04B45/00—Time pieces of which the indicating means or cases provoke special effects, e.g. aesthetic effects
    • A—HUMAN NECESSITIES
    • A44—HABERDASHERY; JEWELLERY
    • A44C—PERSONAL ADORNMENTS, e.g. JEWELLERY; COINS
    • A44C25/00—Miscellaneous fancy ware for personal wear, e.g. pendants, crosses, crucifixes, charms
    • A—HUMAN NECESSITIES
    • A44—HABERDASHERY; JEWELLERY
    • A44C—PERSONAL ADORNMENTS, e.g. JEWELLERY; COINS
    • A44C27/00—Making jewellery or other personal adornments
    • 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
    • G04B19/00—Indicating the time by visual means
    • G04B19/28—Adjustable guide marks or pointers for indicating determined points of time
    • G04B19/283—Adjustable guide marks or pointers for indicating determined points of time on rotatable rings, i.e. bezel
    • 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
    • G04B19/00—Indicating the time by visual means
    • G04B19/28—Adjustable guide marks or pointers for indicating determined points of time
    • G04B19/283—Adjustable guide marks or pointers for indicating determined points of time on rotatable rings, i.e. bezel
    • G04B19/286—Adjustable guide marks or pointers for indicating determined points of time on rotatable rings, i.e. bezel with locking means to prevent undesired rotations in both directions
    • 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
    • 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
    • G04B37/08—Hermetic sealing of openings, joints, passages or slits
    • 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
    • G04B37/08—Hermetic sealing of openings, joints, passages or slits
    • G04B37/084—Complete encasings for wrist or pocket watches without means for hermetic sealing of winding stem or crown
    • 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
    • G04B37/08—Hermetic sealing of openings, joints, passages or slits
    • G04B37/11—Hermetic sealing of openings, joints, passages or slits of the back cover of pocket or wrist watches
    • 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
    • G04B47/00—Time-pieces combined with other articles which do not interfere with the running or the time-keeping of the time-piece
    • G04B47/04—Time-pieces combined with other articles which do not interfere with the running or the time-keeping of the time-piece with attached ornaments or amusement apparatus
    • 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
    • G04B19/00—Indicating the time by visual 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
    • G04B47/00—Time-pieces combined with other articles which do not interfere with the running or the time-keeping of the time-piece

Definitions

  • the invention relates to a sub-assembly, called a covering, for a timepiece or for a watch or for jewelry, according to claim 1.
  • the invention also relates to a timepiece, in particular a watch, comprising such a covering sub-assembly.
  • the invention also relates to a jewel comprising such a sub-assembly.
  • the invention relates to the field of dressing watches, and the field of jewelry.
  • the cladding of watches and similar devices obeys many constraints, in particular sealing, robustness, appearance, and must be carried out in such a way as to prevent any involuntary disassembly resulting irreparably in an after-sales intervention for exchange of seals, cleaning, lubrication, even repair.
  • trim or control components must also be angularly indexed with respect to one another, for reference positions of original reference, rest, or actuation, or also to facilitate the reading of indications. or graduations, or to ensure the continuity of left surfaces and / or decorations. This angular indexing is often difficult to achieve well, in combination with a good tightening of the components and with a perfect seal of the joints.
  • the document EP2672331 in the name of OMEGA SA describes a timepiece assembly comprising a middle part, a timepiece box and is a bezel system comprising at least one bezel, said bezel being fixed to the middle part on a fixing zone by elastic fixing means , said middle part further comprising at least one opening, opening onto the fixing zone at the level of said elastic fixing means to allow the user to exert pressure on said elastic fixing means to deform them and separate said bezel from said middle, the fixing means comprising a male part arranged on one of the faces of said bezel, and a female part arranged on said middle, the male part cooperating elastically with the female part in order to fix said bezel, to said middle, said at least one opening, opening into the female part to allow the user to exert pressure on the male part to de securing the bezel of the middle part, the male part comprising at least two hooks, at least one of which is flexible, the female part comprising at least one groove, in which said at least two hooks are inserted in order to fix said bezel
  • the document EP2672333 in the name of OMEGA SA describes a middle part of a timepiece comprising a peripheral shoulder on which an annular rotating bezel system is mounted for rotation.
  • the rotating bezel system is formed by an independent module, said module comprising an annular bezel, an annular support element, a toothed element and spring means cooperating elastically with the toothed element, said spring means and said toothed element being maintained.
  • said rotating bezel system further comprising fixing means for fixing together the spring means, the support element and the bezel, the toothed element being angularly integral with said middle while that the spring means are angularly integral with the bezel and the support element to allow indexing of the position of the rotating bezel system relative to the middle part.
  • the invention proposes to produce a sealed and secure assembly of covering components with an easy-to-adjust angular indexing.
  • the invention relates to a covering sub-assembly for a timepiece according to claim 1.
  • the invention also relates to a timepiece comprising such a covering sub-assembly.
  • the invention also relates to a jewel comprising such a sub-assembly.
  • the invention proposes to produce a sealed and secure assembly of covering components with an easy-to-adjust angular indexing, and in a guaranteed position, and this with a minimum number of components, and moderate manufacturing costs.
  • the Figures 1 to 10 illustrate the nonlimiting example of the angular indexing of a case relative to a watch middle.
  • the invention relates to a covering sub-assembly 100 for a timepiece, and more particularly for a watch, or for a piece of jewelry, comprising a first component 1 comprising edges 2 projecting from a first skirt alternated with first clearances, and a second component 10 comprising wings 12 projecting from a second skirt 11 alternated with second clearances 13.
  • this sub-assembly may relate to the structure of the jewel, or elements added to a basic structure, or any assembly of several elementary or pre-assembled components, or even the entire jewel.
  • This covering sub-assembly 100 is arranged to pass from a first disassembled insertion position, to a second assembled and locked position.
  • the sub-assembly includes repulsion means arranged at the interface between the first component 1 and the second component 10, the latter tend to be kept at a distance from each other by means repulsion comprising at least one seal 9.
  • the transition from the first disassembled insertion position to the second assembled and locked position is carried out under the action of forces exerted by an operator: an axial force to overcome the resistant force of the repulsion means and bringing the first component 1 and the second component 10 into contact, and a torque to bring them into an angular indexing position.
  • the first component 1 and the second component 10 In the second assembled and locked position, the first component 1 and the second component 10 have, relative to each other, a second angular orientation different from the first angular orientation.
  • the first component 1 and the second component 10 are held axially against the resistant force exerted by these repulsion means, by the effect of a bayonet adjustment, achieved by the application of the axial and torque forces impressed by the operator, between at least two flanges 2 and at least two wings 12.
  • This joining of the first component 1 and the second component 10, by bayonet adjustment, in particular around an axial direction D, is reversible, and allows their disassembly.
  • this disassembly requires from an operator efforts similar to those exerted during assembly, this disassembly preferably requires the use of a tool special, cooperating for example with peripheral holes or notches, or the like, and cannot be the result of clumsiness or exposure to particular external physical factors.
  • this covering sub-assembly 100 comprises at least a third component 20, which is arranged to be interposed radially, or respectively axially, between the first component 1 and the second component 10 and fixed in rotation relative to one of them, and which comprises at least one zone 50 which is elastically deformable radially, or respectively axially.
  • This third component 20 is inserted punctually, or else at the level of extended surfaces, it can take different forms, in particular a form of annular sector or ring as in the nonlimiting variant illustrated.
  • This deformable zone 50 is arranged to oppose a resistive torque of variable moment to any relative tangential torque between the first component 1 and said second component 10.
  • This deformable zone 50 comprises at least one notch 26, which is arranged to cooperate with at least one complementary relief 18 that comprises that of the components 1, 10, with respect to which the third component 20 is free to rotate. And any passage of such a notch 26 on a complementary relief 18 generates a resistant torque which tends to oppose the relative movement of rotation between the first component 1 and the second component 10, at least one such notch 26 being arranged for the relative angular indexing between the first component 1 and the second component 10.
  • the invention relates to a covering sub-assembly 100 for a timepiece or watch, comprising at least one seal 9 between a first component 1 and a second component 10.
  • the first component 1 has flanges 2 projecting radially inward from a first skirt, which are alternated with first clearances 3.
  • the second component 10 has wings 12 projecting radially outward from a second skirt 11, which are alternated with second clearances 13.
  • This covering sub-assembly 100 is then arranged to pass from a position disassembled in an assembled position in compression of the seal 9, by the reversible connection of the first component 1 and the second component 10, by a bayonet adjustment between at least two flanges 2 and at least two wings 12, in a movement of relative rotation about an axial direction D. If the axial compression of the seal 9 is the most conventional, the invention also allows without difficulty an assembly with c radial compression of such a seal.
  • the covering sub-assembly 100 thus comprises at least a third component 20, which is arranged to be inserted radially in the variant illustrated by the figures, between the first component 1 and the second component 10.
  • This third component 20 is fixed in rotation relative to the first component 1 or to the second component 10.
  • the third component 20 which comprises at least one zone 50 which is elastically deformable, in particular radially in the variant of the figures. This deformable zone 50 is arranged to oppose a resistive torque of variable moment to any relative tangential torque between the first component 1 and the second component 10.
  • This third component 20 has the expected elastic effect, added or inserted into the first component 1 or into the second component 10.
  • it is at least partially annular, in the annular sector, or even in the form of a ring. closed as in the figures, or split ring, or the like.
  • the deformable zone 50 comprises at least one notch 26, which is arranged to cooperate with at least one complementary relief 18 that comprises that of the components 1, 10, with respect to which the third component 20 is free to rotate.
  • the relative arrangement of the components of the sub-assembly 100 is such that any passage of such a notch 26 on such a complementary relief 18 generates a resistant torque, which tends to oppose the relative movement of rotation between the first component 1 and the second component 10.
  • At least one such notch 26 is arranged to the relative angular indexing between the first component 1 and the second component 10. More particularly the couple formed by a particular notch 26 and a particular complementary relief 18 corresponds to the exercise of a maximum resistant force, and this particular couple corresponds to a preferred indexing and locking position in the indexed position.
  • this third component 20 is a closed ring, substantially toroidal.
  • the third component 20 is made completely of elastic material.
  • the first component 1 comprises at least one housing 6 for stopping an anti-rotation lug 29 that the third component 20 comprises.
  • the deformable zone 50 comprises a plurality of notches 26, which are arranged to oppose successive resistance to a complementary relief 18. More particularly still, in the same such deformable zone 50, the successive notches 26 are arranged to oppose resistance increasing to a complementary relief 18, during the growth of the relative angle between the first component 1 and the second component 10.
  • the resistant force can be all the more important as the number of notches 26 and complementary reliefs 18 in cooperation is high. It is therefore possible to play on the number of successive notches, and / or on the height of each notch, or, more exactly, the force resisting the passage of each notch.
  • the user prints a progressive torque to print the relative rotation between the first component 1 and the second component 10.
  • the operator carrying out the assembly of the sub-assembly 100 encounters a first resistance during the putting in cooperation of a first notch 26 with a first complementary relief 18. The resistive torque progresses during the relative rotation.
  • the first notch 26 and the first complementary relief 18 are unique (or are each replaced by a plurality of such couples, of identical profile and resistance, and arranged at the periphery of the profile so as to interfere with same time: which amounts to a single resulting notch, and a single relief; this possibility of duplicating profiles in phase is not explained in more detail, and is applicable to any variant of the invention).
  • the minimal applied axial force necessarily corresponds to the sealing of the seal (s) 9.
  • the first notch 26 and the first complementary relief 18 constitute the housing 6 and l pin 29 for indexing the second component 10 in angular position relative to the first component 1. For example, three notches at 120 ° cooperate with complementary reliefs also at 120 °, the operator feels a single passage of hard point when the three 120 ° notches act simultaneously.
  • the sub-assembly 100 comprises several notches 26 and several complementary reliefs 18, arranged relatively with respect to each other so that, at the start of the relative rotation, a single clearance-boss pair is in cooperation, then, after a certain angle, two clearance-boss couples are in simultaneous cooperation, and so on, the peak of cumulative resistant torque increasing with each passage of hard point, to reach, at the indexing angle, the value maximum. The operator thus encounters a feeling of increasing resistance.
  • the seal exists as soon as the bayonet is put in, and the mechanism according to the invention is arranged so that, as in the previous case of a single bump, securing the seal of the seal (s) 9 is ensured from the passage of this first bump, since then no loosening can occur without the voluntary action of an operator.
  • the figure 11 illustrates such an example, and superimposes the torque profile obtained with a particular variant of the invention, in solid lines, corresponding to the passage of three successive hard points, also called bumps, before immobilization in the indexing position at the angle ⁇ M, with, for comparison, the increase in torque in the last degrees of closure of a conventional traditional face of the prior art (which may in particular require an angular amplitude of the order of two turns), in broken lines .
  • the only resistance to rotation is the mechanical friction forces due in particular to the axial forces generated by the compression of a seal at the end of the stroke, and to the elastic deformation of the components present during the permanent mechanical blocking.
  • the angular value ⁇ V corresponding to the maximum screwing with a torque ⁇ V corresponds to the end of a torque growth curve, the slope of which becomes extremely steep in the vicinity of this value ⁇ V: which means that a subset screwed which is then subjected to a significant effort risks unscrewing, without any guardrail to prevent total unscrewing, or loss of tightness, since the torque necessary for unscrewing is then declining, and the energy to be supplied for the lower unscrewing than in the case of the invention.
  • the same hump cooperates successively with several clearances, which may each be of the same depth in a particular embodiment, thus creating a fixed resistance force value, and which must be passed repeatedly to arrive in the closed and indexed position. It is, again, possible to mix these last two variants, everything is possible, the machining to be carried out is not very complex.
  • the invention requires, during assembly, the successive crossing, in a sort of ramp, of several bumps of torque of increasing resistance, but also upon dismantling, since, from the final position indexed ⁇ M, in particular on a possible mechanical stop (which is however not necessary within the framework of the invention), any application of a sudden force results, in the worst case, by the crossing of a single bump, without total disassembly, with a visual shift, and above all without loss of tightness or risk of pollution of inside the watch.
  • the operator must successively cross three thresholds, visible optically due to the offset, before having a loss of tightness.
  • each notch is identical, and its passage opposes the same resisting torque.
  • the multiplying coefficient of resistant torque from one notch to another, can in particular be between 1.2 and 2.2.
  • the invention is advantageous because it is perfectly compatible with watchmaking dimensions, while having a capacity for a high resistant force, which can reach several N.m, for example in the case of a third component made of at least partially amorphous metallic material. Even with more common materials for the manufacture of technical rings, POM, polyurethane or similar, and axial and radial dimensions of a few tenths of a millimeter, the resistant torque easily exceeds one N.m.
  • the dismantling of the mechanism according to the invention requires the maintenance of the application of any effort of accidental origin. during a large angular stroke, from 7 to 8 ° for the crossing of a single bump in the example illustrated, the security still being ensured if several bumps succeed, while, in screwed solution of the prior art, disassembly is consumed in an angular travel of the order of only 2 °, and therefore the loss of tightness also.
  • the angular indexing can be guaranteed by a stop 28 for limiting the travel. But, preferably, it is the third component 20 which fulfills, de facto, the stop function, by the exercise of a particularly high resistant torque. Such a mechanical stop is therefore not absolutely necessary.
  • the invention thus makes it possible to prevent any unintentional and involuntary disassembly of the sub-assembly 100, for example under the effect of vibrations, of successive expansion cycles, by unfortunate use of the user, or other.
  • disassembly requires a special tool that is not sold, which ensures that maintenance is carried out by after-sales personnel with the required qualifications.
  • the Figures 1 to 7 illustrate a first variant, where the third component 20 is a ring 24 held in abutment on a flat surface 5 that includes the edges 2 of the first component 1 consisting of a middle part, and the extensions of these edges 2.
  • This ring 24 is well secured angularly with the first component 1, by anti-rotation lugs 29 whose external contours are accommodated in a complementary manner in housings 6 of the middle part.
  • the three components present here each have the same contours three times, equally distributed at 120 °.
  • the second component 10 is a bottom, manipulated by an operator, preferably using a special tool. Above the skirt 11 of this bottom 10, the rim 12 is bypassed so as to be able to gradually deform the ring 24 during its rotation (counterclockwise for these figures).
  • This rim 12 comprises in particular a ramp 18 which causes the opposing surfaces of the ring 24 to bend.
  • This ramp is here followed by a clearance 17 which allows the movement of projecting notches 27, 28, which the ring 24 has internally, the l one 27 is substantially parallel to a clearance 25 which the ring 24 has on its outer face, at the level of such a deformable zone 50, while the other 28 faces a substantially cylindrical bearing surface of the ring 24
  • a recess 26 separates these projecting notches 27 and 28 on the inside of the ring 24.
  • the figures 8 to 10 illustrate a second variant, quite similar to the previous one, also comprising a repetition at 120 °, the bottom 10 comprises here, after the ramp 18 and separated by intermediate reliefs, three clearances 171, 172, 173, which are arranged to cooperate successively with bosses 271, 272, 273 of the ring.
  • the angular reference 19 of the base 10 makes it possible to locate the relative angular position of the middle part 1 and of the base 10: 50 ° on the figure 8 , 30 ° on the figure 9 , 0 ° on the figure 10 .
  • the sub-assembly 100 comprises components 1 and 10 made of different materials, with different coefficients of expansion, or also fragile or hard materials (ceramic, sapphire), which do not not allow standard fixing methods.
  • ceramic, sapphire fragile or hard materials
  • the third component 20 is preferably a ring, which can be made of different materials, in particular POM, polyurethane, polymer-based material, or elastomer, at least partially amorphous metal alloy, the material chosen determining the maximum tightening torque, thus a amorphous alloy ring allows a tightening torque of about 3.2 Nm, similar to that usual for a bottom screwed onto a middle part, for a gasket 9 of the same size.
  • This ring can also be made of amorphous metal, stainless steel, CuBe, "Liquidmetal ⁇ ", or even be bi-material, for example with a core of plastic material with molded inserts, metallic, or ceramic, or other.
  • the advantage of such a ring, preferably in an elastic polymer material or the like, is its ease of accommodation in a volume whose free space is very limited, where it is impossible to safely implant a metallic element capable to break.
  • the material of the third component 20 can also be more complex, in particular in the form of an elastomer type material loaded with technical fibers such as “Kevlar®” or the like, or with an anti-wear additive such as said polytetrafluoroethylene. PTFE, or other.
  • An important advantage of the invention is that it requires neither drilling nor tapping, but only simple machining which can be carried out with a certain ease, thus avoiding any soiling or pollution of the watch, and allowing a moderate cost.
  • the first component 1 is a middle part and the second component 10 is a background.
  • the presence of at least one seal is required.
  • the first component 1 is a base and the second component 10 is an appearance part, such as a medallion, or the like, attached to this base, in which case a seal between them is not necessary, and the presence of a spring which may be perfectly sufficient in a variant comprising repulsion means.
  • the first component 1 is a middle part and the second component 10 is a flange or bezel, as visible on the figure 13 .
  • This case is well suited to a variant in which a first component and a second component tend to be distant from each other, by magnetic repulsion or by an elastic element such as a rod, that is to say a thin ring, not necessarily closed, or more particularly a rod comprising segments similar to a ratchet to easily authorize only a unidirectional maneuver, as in the particular case of use of the invention for a unidirectional telescope.
  • a rod may be filiform, of substantially round section, or else of rectangular section, or the like.
  • the third component 20 simply constitutes the repulsion means itself, which significantly reduces the number of components while ensuring the required maintenance very well.
  • the first component 1 is a middle part or a tube attached to a middle part
  • the second component 10 is a crown, as visible on the figure 14 .
  • the second component 10 is a crown stem or a pusher. In these cases too, the presence of at least one seal is mandatory.
  • the invention is suitable for numerous applications in watchmaking, for example for a helium valve on a diving watch, or also for covering components such as a bracelet, a buckle, a clasp, or the like. It is the same in jewelry, to close cuff links, earrings, or to fix precious stones or decorated elements removably designed.
  • the invention also relates to a timepiece or watch 1000 comprising such a covering sub-assembly 100.
  • the invention also relates to a jewel comprising such a sub-assembly 100.
  • the invention makes it possible to have a sub-assembly with bayonet assembly, with a retaining ring mounted on a first component, in particular a substantially O-ring.
  • This ring can also be opened, for example with a slot such as a circlip or the like, to facilitate mounting.
  • notches in the second component are blocked with notches in the ring. This design takes up little space, it ensures that the watch remains watertight, which it protects against accidental dismantling.
  • the invention makes it possible to ensure the perfect orientation of a component kept locked in its service position.
  • the invention also authorizes the co-operation of antagonistic components made of materials of different natures, without friction, friction, elasticity or other constraint, without the need for an external fixing element such as a screw or the like, without a screw nor machining liable to weaken particular materials such as ceramics, sapphire, and the like. It has very good resistance to accidental or even voluntary unscrewing by vibration or of the Chapuis-choc type.
  • the invention also makes it possible to ensure the interchangeability of the components, and, consequently, increased personalization of the watches or jewelry of the users.
  • This invention is applicable both to watches or jewelry made of precious materials and to mass-produced products comprising components of low unit cost, in particular plastic or similar.
  • the sub-assembly 100 comprises components 1 and 10 made of different materials, with different coefficients of expansion, or even fragile or hard materials (ceramic, sapphire, precious stones, gems , cameos), which do not allow standard mounting methods.
  • Ceramic, sapphire, precious stones, gems , cameos fragile or hard materials
  • Components 1 and 10 can thus be made of all kinds of materials: metallic alloys, in particular precious or titrated, stainless steels, metallic alloys at least partially amorphous, or “Liquidmetal ⁇ ” or similar, ceramics, sapphire, minerals, hard stones, rubber, plastics and in particular thermoplastic elastomers called TPE including in particular thermoplastic polyurethane called TPU, polycarbonates called PC, polyvinyl chlorides called PVC, polyacetals or polyoxymethylene called POM, silicone, “Nylon®”, to name, but not limited to, only materials usual in watchmaking construction and in jewelry.
  • metallic alloys in particular precious or titrated, stainless steels, metallic alloys at least partially amorphous, or “Liquidmetal ⁇ ” or similar
  • ceramics sapphire, minerals, hard stones, rubber, plastics and in particular thermoplastic elastomers called TPE including in particular thermoplastic polyurethane called TPU, polycarbonates called PC, polyvinyl chlorides called P

Description

Domaine de l'inventionField of the invention

L'invention concerne un sous-ensemble, dit d'habillage, pour pièce d'horlogerie ou pour montre ou pour bijou, selon la revendication 1.The invention relates to a sub-assembly, called a covering, for a timepiece or for a watch or for jewelry, according to claim 1.

L'invention concerne encore une pièce d'horlogerie, notamment une montre, comportant un tel sous-ensemble d'habillage.The invention also relates to a timepiece, in particular a watch, comprising such a covering sub-assembly.

L'invention concerne encore un bijou comportant un tel sous-ensemble.The invention also relates to a jewel comprising such a sub-assembly.

L'invention concerne le domaine de l'habillage des montres, et le domaine de la bijouterie et de la joaillerie.The invention relates to the field of dressing watches, and the field of jewelry.

Arrière-plan de l'inventionInvention background

L'habillage des montres et appareils similaires obéit à de nombreuses contraintes, en particulier d'étanchéité, de robustesse, d'aspect, et doit être réalisé de façon à prévenir tout démontage involontaire se traduisant irrémédiablement par une intervention d'après-vente pour échange de joints, nettoyage, lubrification, voire réparation.The cladding of watches and similar devices obeys many constraints, in particular sealing, robustness, appearance, and must be carried out in such a way as to prevent any involuntary disassembly resulting irreparably in an after-sales intervention for exchange of seals, cleaning, lubrication, even repair.

Certains composants d'habillage ou de commande doivent, encore, être indexés angulairement les uns par rapport aux autres, pour des repérages de position de référence d'origine, de repos, ou d'actionnement, ou encore pour faciliter la lecture d'indications ou de graduations, ou pour assurer la continuité de surfaces gauches et/ou de décors. Cet indexage angulaire est souvent délicat à bien réaliser, en combinaison avec un bon serrage des composants et avec une étanchéité parfaite des joints.Certain trim or control components must also be angularly indexed with respect to one another, for reference positions of original reference, rest, or actuation, or also to facilitate the reading of indications. or graduations, or to ensure the continuity of left surfaces and / or decorations. This angular indexing is often difficult to achieve well, in combination with a good tightening of the components and with a perfect seal of the joints.

Le document EP2672331 au nom de OMEGA SA décrit un ensemble horloger comprenant une carrure, de boite de pièce d'horlogerie et est un système de lunette comprenant au moins une lunette, ladite lunette étant fixée à la carrure sur une zone de fixation par des moyens de fixation élastiques, ladite carrure comprenant en outre au moins une ouverture, débouchant sur la zone de fixation au niveau desdits moyens de fixation élastique pour permettre à l'utilisateur d'exercer une pression sur lesdits moyens de fixation élastiques pour les déformer et désolidariser ladite lunette de ladite carrure, les moyens de fixation comprenant une partie mâle agencée sur l'une des faces de ladite lunette, et une partie femelle agencée sur ladite carrure, la partie mâle coopérant élastiquement avec la partie femelle afin de fixer ladite lunette, à ladite carrure, ladite au moins une ouverture, débouchant dans la partie femelle pour permettre à l'utilisateur d'exercer une pression sur la partie mâle pour désolidariser la lunette de la carrure, la partie mâle comprenant au moins deux crochets, dont au moins un est flexible, la partie femelle comprenant au moins une gorge, dans laquelle lesdits au moins deux crochets s'insèrent afin de fixer ladite lunette, à ladite carrure, ladite au moins une ouverture, permettant d'exercer une pression sur au moins un crochet flexible.The document EP2672331 in the name of OMEGA SA describes a timepiece assembly comprising a middle part, a timepiece box and is a bezel system comprising at least one bezel, said bezel being fixed to the middle part on a fixing zone by elastic fixing means , said middle part further comprising at least one opening, opening onto the fixing zone at the level of said elastic fixing means to allow the user to exert pressure on said elastic fixing means to deform them and separate said bezel from said middle, the fixing means comprising a male part arranged on one of the faces of said bezel, and a female part arranged on said middle, the male part cooperating elastically with the female part in order to fix said bezel, to said middle, said at least one opening, opening into the female part to allow the user to exert pressure on the male part to de securing the bezel of the middle part, the male part comprising at least two hooks, at least one of which is flexible, the female part comprising at least one groove, in which said at least two hooks are inserted in order to fix said bezel, to said middle part, said at least one opening, making it possible to exert pressure on at least one flexible hook.

Le document EP2672333 au nom de OMEGA SA décrit une carrure de pièce d'horlogerie comprenant un épaulement périphérique sur lequel un système de lunette tournante annulaire est monté à rotation. Le système de lunette tournante est formé d'un module indépendant, ledit module comprenant une lunette annulaire, un élément de support annulaire, un élément denté et des moyens ressorts coopérant élastiquement avec l'élément denté, lesdits moyens ressorts et ledit élément denté étant maintenus axialement par la lunette et l'élément de support, ledit système de lunette tournante comprenant en outre des moyens de fixation pour fixer ensemble les moyens ressorts, l'élément de support et la lunette, l'élément denté étant angulairement solidaire de ladite carrure tandis que les moyens ressorts sont angulairement solidaires de la lunette et de l'élément de support pour permettre une indexation de la position du système de lunette tournante par rapport à la carrure.The document EP2672333 in the name of OMEGA SA describes a middle part of a timepiece comprising a peripheral shoulder on which an annular rotating bezel system is mounted for rotation. The rotating bezel system is formed by an independent module, said module comprising an annular bezel, an annular support element, a toothed element and spring means cooperating elastically with the toothed element, said spring means and said toothed element being maintained. axially by the bezel and the support element, said rotating bezel system further comprising fixing means for fixing together the spring means, the support element and the bezel, the toothed element being angularly integral with said middle while that the spring means are angularly integral with the bezel and the support element to allow indexing of the position of the rotating bezel system relative to the middle part.

Résumé de l'inventionSummary of the invention

L'invention se propose de réaliser un assemblage étanche et sécurisé de composants d'habillage avec un indexage angulaire facile à régler.The invention proposes to produce a sealed and secure assembly of covering components with an easy-to-adjust angular indexing.

A cet effet, l'invention concerne un sous-ensemble d'habillage pour pièce d'horlogerie selon la revendication 1.To this end, the invention relates to a covering sub-assembly for a timepiece according to claim 1.

L'invention concerne encore une pièce d'horlogerie comportant un tel sous-ensemble d'habillage.The invention also relates to a timepiece comprising such a covering sub-assembly.

L'invention concerne encore un bijou comportant un tel sous-ensemble.The invention also relates to a jewel comprising such a sub-assembly.

Description sommaire des dessinsBrief description of the drawings

D'autres caractéristiques et avantages de l'invention apparaîtront à la lecture de la description détaillée qui va suivre, en référence aux dessins annexés, où :

  • la figure 1 représente, de façon schématisée, en perspective éclatée, une variante particulière d'un sous-ensemble d'habillage selon l'invention, comportant un premier composant qui est une carrure, sous laquelle est représenté un deuxième composant qui est un fond, comportant une flèche indiquant une direction d'indexage angulaire, et présenté pour sa fixation en mode baïonnette au premier composant, et un troisième composant qui est une bague élastique destiné à être inséré entre les deux autres ;
  • la figure 2 représente, de façon similaire à la figure 1, le même sous-ensemble après insertion en appui du deuxième composant sur le premier composant, avec le troisième composant monté solidaire angulairement du premier composant, dans une première orientation angulaire relative correspondant au libre passage de la baïonnette;
  • la figure 3 représente, de façon similaire à la figure 2, le même sous-ensemble, dans une position fermée suite à fermeture de la baïonnette, après une autre rotation achevée par l'indexage angulaire relatif parfait du deuxième composant par rapport au premier composant, dans une deuxième orientation angulaire ;
  • la figure 4 est une vue partielle, en perspective, dans la position de la figure 3, de ce sous-ensemble d'habillage, où un relief du deuxième composant est en appui sur une ondulation que comporte une zone déformable du troisième composant;
  • la figure 5 est une vue en plan du même sous-ensemble, dans la position indexée de la figure 3 ;
  • la figure 6 est une coupe transversale selon le plan de coupe AA de la figure 5 ;
  • la figure 7 est une coupe transversale selon le plan de coupe BB de la figure 5;
  • les figures 8 à 10 représentent, en vue en plan et de dessus, une autre variante de sous-ensemble selon l'invention :
  • la figure 8 en position d'entrée d'insertion de la baïonnette, similaire à celle de la figure 2 ;
  • la figure 9 après une première rotation relative entre le premier composant et le deuxième composant, où une rampe de ce dernier vient en appui sur une zone déformable du troisième composant, avant franchissement de trois crans;
  • la figure 10 après une deuxième rotation relative entre le premier composant et le deuxième composant, où la rampe a effectué le franchissement des trois crans, et où le premier composant et le deuxième composant sont dans leur position d'indexage, le fond étant complètement fermé sur la carrure;
  • la figure 11 est, pour une variante particulière de l'invention, un exemple de diagramme de consommation de couple en ordonnée, en fonction de l'angle relatif entre le premier composant et le deuxième composant, en abscisse, en trait fort pour la réalisation des figures 8 à 10, en comparaison avec un diagramme équivalent en trait interrompu correspondant à la fin de la course de vissage d'une fermeture usuelle non sécurisée d'un fond vissé usuel de l'art antérieur;
  • la figure 12 représente, de façon schématisée et en vue de dessous, une montre comportant un tel sous-ensemble dont une carrure constitue le premier composant, et un fond constitue le deuxième composant ;
  • la figure 13 représente, de façon schématisée et en vue de dessus, une montre comportant un tel sous-ensemble dont une carrure constitue le premier composant, et une lunette constitue le deuxième composant ;
  • la figure 14 représente, de façon schématisée et en vue de dessus, une montre comportant un tel sous-ensemble dont un tube fixé à une carrure constitue le premier composant, et une couronne constitue le deuxième composant ;
Other characteristics and advantages of the invention will appear on reading the detailed description which follows, with reference to the appended drawings, where:
  • the figure 1 shows, schematically, in exploded perspective, a particular variant of a covering sub-assembly according to the invention, comprising a first component which is a middle part, under which is represented a second component which is a base, comprising a arrow indicating an angular indexing direction, and presented for its attachment in bayonet mode to the first component, and a third component which is an elastic ring intended to be inserted between the two others;
  • the figure 2 represents, similarly to the figure 1 , the same sub-assembly after insertion in support of the second component on the first component, with the third component mounted angularly integral with the first component, in a first relative angular orientation corresponding to the free passage of the bayonet;
  • the figure 3 represents, similarly to the figure 2 , the same sub-assembly, in a closed position following closure of the bayonet, after another rotation completed by the perfect relative angular indexing of the second component relative to the first component, in a second angular orientation;
  • the figure 4 is a partial perspective view in the position of the figure 3 , of this covering sub-assembly, where a relief of the second component is supported on a corrugation that comprises a deformable zone of the third component;
  • the figure 5 is a plan view of the same subset, in the indexed position of the figure 3 ;
  • the figure 6 is a cross section along the section plane AA of the figure 5 ;
  • the figure 7 is a cross section along the section plane BB of the figure 5 ;
  • the figures 8 to 10 represent, in plan view and from above, another variant of a sub-assembly according to the invention:
  • the figure 8 in the bayonet insertion entry position, similar to that of the figure 2 ;
  • the figure 9 after a first relative rotation between the first component and the second component, where a ramp of the latter comes to bear on a deformable zone of the third component, before crossing three notches;
  • the figure 10 after a second relative rotation between the first component and the second component, where the ramp has made the crossing of the three notches, and where the first component and the second component are in their indexing position, the bottom being completely closed on the middle part ;
  • the figure 11 is, for a particular variant of the invention, an example of a diagram of consumption of torque on the ordinate, as a function of the relative angle between the first component and the second component, on the abscissa, in strong line for the realization of the figures 8 to 10 , in comparison with an equivalent dashed line diagram corresponding to the end of the screwing stroke of a usual unsecured closure of a usual screwed bottom of the prior art;
  • the figure 12 shows schematically and in bottom view, a watch comprising such a sub-assembly of which a middle part constitutes the first component, and a case back constitutes the second component;
  • the figure 13 shows, schematically and in top view, a watch comprising such a sub-assembly of which a middle part constitutes the first component, and a bezel constitutes the second component;
  • the figure 14 shows, schematically and in top view, a watch comprising such a sub-assembly of which a tube fixed to a middle part constitutes the first component, and a crown constitutes the second component;

Description détaillée des modes de réalisation préférésDetailed description of preferred embodiments

L'invention se propose de réaliser un assemblage étanche et sécurisé de composants d'habillage avec un indexage angulaire facile à régler, et dans une position garantie, et ceci avec un nombre minimal de composants, et des coûts de fabrication modérés.The invention proposes to produce a sealed and secure assembly of covering components with an easy-to-adjust angular indexing, and in a guaranteed position, and this with a minimum number of components, and moderate manufacturing costs.

Les figures 1 à 10 illustrent l'exemple non limitatif de l'indexage angulaire d'un fond par rapport à une carrure de montre.The Figures 1 to 10 illustrate the nonlimiting example of the angular indexing of a case relative to a watch middle.

L'invention concerne un sous-ensemble d'habillage 100 pour une pièce d'horlogerie, et plus particulièrement pour une montre, ou pour un bijou, comportant un premier composant 1 comportant des rebords 2 saillant d'une première jupe alternés avec des premiers dégagements, et un deuxième composant 10 comportant des ailes 12 saillant d'une deuxième jupe 11 alternées avec des deuxièmes dégagements 13.The invention relates to a covering sub-assembly 100 for a timepiece, and more particularly for a watch, or for a piece of jewelry, comprising a first component 1 comprising edges 2 projecting from a first skirt alternated with first clearances, and a second component 10 comprising wings 12 projecting from a second skirt 11 alternated with second clearances 13.

On utilise ici la dénomination générale de sous-ensemble « d'habillage » aussi bien pour une pièce d'horlogerie que pour un bijou, même si ce terme est d'emploi courant en horlogerie seulement. On comprend que, dans le cas de la bijouterie, ce sous-ensemble peut concerner la structure du bijou, ou des éléments rapportés sur une structure de base, ou tout assemblage de plusieurs composants élémentaires ou pré-assemblés, voire le bijou tout entier.We use here the general denomination of “dressing” sub-assembly for both a timepiece and a piece of jewelry, even if this term is commonly used in watchmaking only. It is understood that, in the case of jewelry, this sub-assembly may relate to the structure of the jewel, or elements added to a basic structure, or any assembly of several elementary or pre-assembled components, or even the entire jewel.

Ce sous-ensemble d'habillage 100 est agencé pour passer d'une première position démontée d'insertion, à une deuxième position assemblée et verrouillée.This covering sub-assembly 100 is arranged to pass from a first disassembled insertion position, to a second assembled and locked position.

Dans la première position démontée d'insertion, le premier composant 1 et le deuxième composant 10 ont l'un par rapport à l'autre une première orientation angulaire. Selon l'invention, le sous-ensemble comporte des moyens de répulsion agencés au niveau de l'interface entre le premier composant 1 et le deuxième composant 10, ces derniers tendent à être maintenus à distance l'un de l'autre par des moyens de répulsion comportant au moins un joint d'étanchéité 9. Le passage de la première position démontée d'insertion à la deuxième position assemblée et verrouillée est effectué sous l'action d'efforts exercés par un opérateur: un effort axial pour surmonter l'effort résistant des moyens de répulsion et mettre au contact le premier composant 1 et le deuxième composant 10, et un couple pour les amener dans une position d'indexation angulaire.In the first disassembled insertion position, the first component 1 and the second component 10 have, relative to each other, a first angular orientation. According to the invention, the sub-assembly includes repulsion means arranged at the interface between the first component 1 and the second component 10, the latter tend to be kept at a distance from each other by means repulsion comprising at least one seal 9. The transition from the first disassembled insertion position to the second assembled and locked position is carried out under the action of forces exerted by an operator: an axial force to overcome the resistant force of the repulsion means and bringing the first component 1 and the second component 10 into contact, and a torque to bring them into an angular indexing position.

Dans la deuxième position assemblée et verrouillée, le premier composant 1 et le deuxième composant 10 ont l'un par rapport à l'autre une deuxième orientation angulaire différente de la première orientation angulaire. Dans la variante particulière comportant des moyens de répulsion, le premier composant 1 et le deuxième composant 10 sont maintenus axialement à l'encontre de l'effort résistant exercé par ces moyens de répulsion, par l'effet d'un ajustement à baïonnette, réalisé par l'application des efforts axiaux et de couple imprimés par l'opérateur, entre au moins deux rebords 2 et au moins deux ailes 12.In the second assembled and locked position, the first component 1 and the second component 10 have, relative to each other, a second angular orientation different from the first angular orientation. In the variant particular comprising repulsion means, the first component 1 and the second component 10 are held axially against the resistant force exerted by these repulsion means, by the effect of a bayonet adjustment, achieved by the application of the axial and torque forces impressed by the operator, between at least two flanges 2 and at least two wings 12.

Cette solidarisation du premier composant 1 et du deuxième composant 10, par ajustement à baïonnette, notamment autour d'une direction axiale D, est réversible, et autorise leur démontage. De façon propre à l'invention et en rupture avec l'art antérieur, ce démontage nécessite de la part d'un opérateur des efforts similaires à ceux exercés lors de l'assemblage, ce démontage nécessite de préférence l'utilisation d'un outil spécial, coopérant par exemple avec des trous ou des encoches périphériques, ou similaire, et ne peut être consécutif à une maladresse ni à l'exposition à des facteurs physiques externes particuliers.This joining of the first component 1 and the second component 10, by bayonet adjustment, in particular around an axial direction D, is reversible, and allows their disassembly. Specifically to the invention and breaking with the prior art, this disassembly requires from an operator efforts similar to those exerted during assembly, this disassembly preferably requires the use of a tool special, cooperating for example with peripheral holes or notches, or the like, and cannot be the result of clumsiness or exposure to particular external physical factors.

Selon l'invention, ce sous-ensemble d'habillage 100 comporte au moins un troisième composant 20, qui est agencé pour être intercalé radialement, ou respectivement axialement, entre le premier composant 1 et le deuxième composant 10 et fixe en rotation par rapport à l'un d'entre eux, et qui comporte au moins une zone 50 déformable élastiquement radialement, ou respectivement axialement.According to the invention, this covering sub-assembly 100 comprises at least a third component 20, which is arranged to be interposed radially, or respectively axially, between the first component 1 and the second component 10 and fixed in rotation relative to one of them, and which comprises at least one zone 50 which is elastically deformable radially, or respectively axially.

Ce troisième composant 20 est inséré ponctuellement, ou bien au niveau de surfaces étendues, il peut prendre différentes formes, notamment une forme de secteur annulaire ou de bague comme dans la variante non limitative illustrée.This third component 20 is inserted punctually, or else at the level of extended surfaces, it can take different forms, in particular a form of annular sector or ring as in the nonlimiting variant illustrated.

Cette zone déformable 50 est agencée pour opposer un couple résistant de moment variable à tout couple tangentiel relatif entre le premier composant 1 et ledit deuxième composant 10. Cette zone déformable 50 comporte au moins un cran 26, qui est agencé pour coopérer avec au moins un relief complémentaire 18 que comporte celui des composants 1, 10, par rapport auquel le troisième composant 20 est libre en rotation. Et tout passage d'un tel cran 26 sur un relief complémentaire 18 génère un couple résistant qui tend à s'opposer au mouvement relatif de rotation entre le premier composant 1 et le deuxième composant 10, au moins un tel cran 26 étant agencé pour l'indexage angulaire relatif entre le premier composant 1 et le deuxième composant 10.This deformable zone 50 is arranged to oppose a resistive torque of variable moment to any relative tangential torque between the first component 1 and said second component 10. This deformable zone 50 comprises at least one notch 26, which is arranged to cooperate with at least one complementary relief 18 that comprises that of the components 1, 10, with respect to which the third component 20 is free to rotate. And any passage of such a notch 26 on a complementary relief 18 generates a resistant torque which tends to oppose the relative movement of rotation between the first component 1 and the second component 10, at least one such notch 26 being arranged for the relative angular indexing between the first component 1 and the second component 10.

Plus particulièrement, dans une variante particulière non limitative comportant des moyens de répulsion, et illustrée par les figures, l'invention concerne un sous-ensemble d'habillage 100 pour pièce d'horlogerie ou montre, comportant au moins un joint d'étanchéité 9 entre un premier composant 1 et un deuxième composant 10. Dans cette variante particulière, le premier composant 1 comporte des rebords 2 saillant radialement vers l'intérieur d'une première jupe, qui sont alternés avec des premiers dégagements 3. Le deuxième composant 10 comporte des ailes 12 saillant radialement vers l'extérieur d'une deuxième jupe 11, qui sont alternées avec des deuxièmes dégagements 13. Ce sous-ensemble d'habillage 100 est alors agencé pour passer d'une position démontée à une position assemblée en compression du joint d'étanchéité 9, par la solidarisation réversible du premier composant 1 et du deuxième composant 10, par un ajustement à baïonnette entre au moins deux rebords 2 et au moins deux ailes 12, dans un mouvement de rotation relatif autour d'une direction axiale D. Si la compression axiale du joint d'étanchéité 9 est la plus classique, l'invention permet aussi sans difficulté un assemblage avec compression radiale d'un tel joint.More particularly, in a particular non-limiting variant comprising repulsion means, and illustrated by the figures, the invention relates to a covering sub-assembly 100 for a timepiece or watch, comprising at least one seal 9 between a first component 1 and a second component 10. In this particular variant, the first component 1 has flanges 2 projecting radially inward from a first skirt, which are alternated with first clearances 3. The second component 10 has wings 12 projecting radially outward from a second skirt 11, which are alternated with second clearances 13. This covering sub-assembly 100 is then arranged to pass from a position disassembled in an assembled position in compression of the seal 9, by the reversible connection of the first component 1 and the second component 10, by a bayonet adjustment between at least two flanges 2 and at least two wings 12, in a movement of relative rotation about an axial direction D. If the axial compression of the seal 9 is the most conventional, the invention also allows without difficulty an assembly with c radial compression of such a seal.

On comprend que l'invention est illustrée ici dans une variante particulière, avec des rebords et des ailes saillant radialement. L'invention est aussi applicable à d'autres variantes où les configurations axiale et radiale sont inversées.It is understood that the invention is illustrated here in a particular variant, with edges and wings projecting radially. The invention is also applicable to other variants where the axial and radial configurations are reversed.

Le sous-ensemble d'habillage 100 comporte ainsi au moins un troisième composant 20, qui est agencé pour être intercalé radialement dans la variante illustrée par les figures, entre le premier composant 1 et le deuxième composant 10. Ce troisième composant 20 est fixe en rotation par rapport au premier composant 1 ou au deuxième composant 10. Le troisième composant 20 qui comporte au moins une zone 50 déformable élastiquement, notamment radialement dans la variante des figures. Cette zone déformable 50 est agencée pour opposer un couple résistant de moment variable à tout couple tangentiel relatif entre le premier composant 1 et le deuxième composant 10.The covering sub-assembly 100 thus comprises at least a third component 20, which is arranged to be inserted radially in the variant illustrated by the figures, between the first component 1 and the second component 10. This third component 20 is fixed in rotation relative to the first component 1 or to the second component 10. The third component 20 which comprises at least one zone 50 which is elastically deformable, in particular radially in the variant of the figures. This deformable zone 50 is arranged to oppose a resistive torque of variable moment to any relative tangential torque between the first component 1 and the second component 10.

Ce troisième composant 20 présente l'effet élastique escompté, rapporté ou inséré dans le premier composant 1 ou dans le deuxième composant 10. De façon préférée mais non limitative, il est au moins partiellement annulaire, en secteur annulaire, ou encore en forme de bague fermée comme sur les figures, ou de bague fendue, ou similaire.This third component 20 has the expected elastic effect, added or inserted into the first component 1 or into the second component 10. Preferably but not limited to, it is at least partially annular, in the annular sector, or even in the form of a ring. closed as in the figures, or split ring, or the like.

De préférence, la zone déformable 50 comporte au moins un cran 26, qui est agencé pour coopérer avec au moins un relief complémentaire 18 que comporte celui des composants 1, 10, par rapport auquel le troisième composant 20 est libre en rotation. L'agencement relatif des composants du sous-ensemble 100 est tel que tout passage d'un tel cran 26 sur un tel relief complémentaire 18 génère un couple résistant, qui tend à s'opposer au mouvement relatif de rotation entre le premier composant 1 et le deuxième composant 10. Au moins un tel cran 26 est agencé pour l'indexage angulaire relatif entre le premier composant 1 et le deuxième composant 10. Plus particulièrement le couple formé par un cran 26 particulier et un relief complémentaire 18 particulier correspond à l'exercice d'un effort résistant maximal, et ce couple particulier correspond à une position préférentielle d'indexage et de blocage en position indexée.Preferably, the deformable zone 50 comprises at least one notch 26, which is arranged to cooperate with at least one complementary relief 18 that comprises that of the components 1, 10, with respect to which the third component 20 is free to rotate. The relative arrangement of the components of the sub-assembly 100 is such that any passage of such a notch 26 on such a complementary relief 18 generates a resistant torque, which tends to oppose the relative movement of rotation between the first component 1 and the second component 10. At least one such notch 26 is arranged to the relative angular indexing between the first component 1 and the second component 10. More particularly the couple formed by a particular notch 26 and a particular complementary relief 18 corresponds to the exercise of a maximum resistant force, and this particular couple corresponds to a preferred indexing and locking position in the indexed position.

Plus particulièrement, ce troisième composant 20 est une bague fermée, sensiblement torique.More particularly, this third component 20 is a closed ring, substantially toroidal.

Dans une réalisation particulière non limitative, le troisième composant 20 est réalisé complètement en matériau élastique.In a particular nonlimiting embodiment, the third component 20 is made completely of elastic material.

Plus particulièrement, le premier composant 1 comporte au moins un logement 6 d'arrêt d'un ergot anti-rotation 29 que comporte le troisième composant 20.More particularly, the first component 1 comprises at least one housing 6 for stopping an anti-rotation lug 29 that the third component 20 comprises.

Naturellement, la configuration peut être inversée, avec un logement d'arrêt présent dans le deuxième composant 10.Naturally, the configuration can be reversed, with a stop housing present in the second component 10.

Plus particulièrement, la zone déformable 50 comporte une pluralité de crans 26, qui sont agencés pour opposer une résistance successive à un relief complémentaire 18. Plus particulièrement encore, dans une même telle zone déformable 50, les crans 26 successifs sont agencés pour opposer une résistance croissante à un relief complémentaire 18, lors de la croissance de l'angle relatif entre le premier composant 1 et le deuxième composant 10.More particularly, the deformable zone 50 comprises a plurality of notches 26, which are arranged to oppose successive resistance to a complementary relief 18. More particularly still, in the same such deformable zone 50, the successive notches 26 are arranged to oppose resistance increasing to a complementary relief 18, during the growth of the relative angle between the first component 1 and the second component 10.

On comprend que l'effort résistant peut être d'autant plus important que le nombre de crans 26 et de reliefs complémentaires 18 en coopération est élevé. Il est donc possible de jouer sur le nombre de crans successifs, et/ou sur la hauteur de chaque cran, ou, plus exactement, l'effort résistant au passage de chaque cran.It is understood that the resistant force can be all the more important as the number of notches 26 and complementary reliefs 18 in cooperation is high. It is therefore possible to play on the number of successive notches, and / or on the height of each notch, or, more exactly, the force resisting the passage of each notch.

Lors de l'assemblage, l'utilisateur imprime un couple progressif pour imprimer la rotation relative entre le premier composant 1 et le deuxième composant 10. Après l'insertion du deuxième composant 10 dans le premier composant 1 en enfermant chaque joint 9, dans la position de la figure 2, et la mise en appui des ailes 12 et des rebords 2, lors de cette rotation relative, l'opérateur effectuant l'assemblage du sous-ensemble 100 rencontre une première résistance lors de la mise en coopération d'un premier cran 26 avec un premier relief complémentaire 18. Le couple résistant progresse lors de la rotation relative.During assembly, the user prints a progressive torque to print the relative rotation between the first component 1 and the second component 10. After the insertion of the second component 10 in the first component 1 by enclosing each joint 9, in the position of the figure 2 , and the bearing of the wings 12 and the flanges 2, during this relative rotation, the operator carrying out the assembly of the sub-assembly 100 encounters a first resistance during the putting in cooperation of a first notch 26 with a first complementary relief 18. The resistive torque progresses during the relative rotation.

Dans un premier cas de figure, le premier cran 26 et le premier relief complémentaire 18 sont uniques (ou bien sont chacun remplacé par une pluralité de tels couples, de profil et de résistance identique, et disposés en périphérie du profil de façon à interférer en même temps: ce qui revient à un cran résultant unique, et un relief unique ; cette possibilité de duplication de profils en phase n'est pas exposée plus en détail, et est applicable à toute variante de l'invention). Dans ce premier cas, l'effort axial appliqué minimal correspond nécessairement à la mise en étanchéité du ou des joints d'étanchéité 9. Et cette position unique de coopération, le premier cran 26 et le premier relief complémentaire 18 constituent le logement 6 et l'ergot 29 pour l'indexage en position angulaire du deuxième composant 10 par rapport au premier composant 1. Par exemple, trois crans à 120° coopèrent avec des reliefs complémentaires eux aussi à 120°, l'opérateur ressent un seul passage de point dur lorsque les trois crans à 120° agissent simultanément.In a first case, the first notch 26 and the first complementary relief 18 are unique (or are each replaced by a plurality of such couples, of identical profile and resistance, and arranged at the periphery of the profile so as to interfere with same time: which amounts to a single resulting notch, and a single relief; this possibility of duplicating profiles in phase is not explained in more detail, and is applicable to any variant of the invention). In this first case, the minimal applied axial force necessarily corresponds to the sealing of the seal (s) 9. And this unique position of cooperation, the first notch 26 and the first complementary relief 18 constitute the housing 6 and l pin 29 for indexing the second component 10 in angular position relative to the first component 1. For example, three notches at 120 ° cooperate with complementary reliefs also at 120 °, the operator feels a single passage of hard point when the three 120 ° notches act simultaneously.

Dans un deuxième cas de figure, le sous-ensemble 100 comporte plusieurs crans 26 et plusieurs reliefs complémentaires 18, agencés relativement les uns par rapport aux autres pour que, au début de la rotation relative, un seul couple dégagement-bossage soit en coopération, puis, après un certain angle, deux couples dégagement-bossage soient en coopération simultanée, et ainsi de suite, le sommet de couple résistant cumulé augmentant lors de chaque passage de point dur, pour atteindre, à l'angle d'indexage, la valeur maximale. L'opérateur rencontre ainsi une sensation de résistance croissante.In a second case, the sub-assembly 100 comprises several notches 26 and several complementary reliefs 18, arranged relatively with respect to each other so that, at the start of the relative rotation, a single clearance-boss pair is in cooperation, then, after a certain angle, two clearance-boss couples are in simultaneous cooperation, and so on, the peak of cumulative resistant torque increasing with each passage of hard point, to reach, at the indexing angle, the value maximum. The operator thus encounters a feeling of increasing resistance.

L'étanchéité existe dès la mise en baïonnette, et le mécanisme selon l'invention est agencé pour que, comme dans le cas précédent d'une bosse unique, la mise en sécurité de l'étanchéité du ou des joints d'étanchéité 9 soit assurée dès le passage de cette première bosse, puisqu'alors aucun desserrage ne peut se produire sans action volontaire d'un opérateur.The seal exists as soon as the bayonet is put in, and the mechanism according to the invention is arranged so that, as in the previous case of a single bump, securing the seal of the seal (s) 9 is ensured from the passage of this first bump, since then no loosening can occur without the voluntary action of an operator.

Dans la pratique, de très bons résultats sont obtenus avec au moins deux, et de préférence trois, voire quatre, bosses successives, de préférence sans dépasser cinq, de façon à procurer une course angulaire élémentaire suffisante pour le passage de chaque bosse. Un bon exemple pratique comporte trois ensembles en phase, correspondant chacun à trois bosses.In practice, very good results are obtained with at least two, and preferably three, even four, successive bumps, preferably without exceeding five, so as to provide an elementary angular travel sufficient for the passage of each bump. A good practical example has three sets in phase, each corresponding to three bumps.

La figure 11 illustre un tel exemple , et superpose le profil de couple obtenu avec une variante particulière de l'invention, en trait plein, correspondant au passage de trois points durs successifs, aussi appelés bosses, avant l'immobilisation en position d'indexage à l'angle θM, avec, à titre de comparaison la montée de couple dans les derniers degrés de fermeture d'un visage traditionnel usuel de l'art antérieur (qui peut notamment nécessiter une amplitude angulaire de l'ordre de deux tours), en trait interrompu. Dans un tel vissage traditionnel, les seules résistances à la rotation sont les forces de frottement mécanique dues notamment aux efforts axiaux engendrés par la compression d'un joint d'étanchéité en fin de course, et à la déformation élastique des composants en présence lors du blocage mécanique définitif. On y voit que l'atteinte du niveau de couple garantissant l'étanchéité du ou des joints 9 n'est atteinte que pour un angle relatif beaucoup plus important, et qu'il n'y a pas d'effet de seuil au démontage, la perte d'étanchéité se faisant dans le cas du dévissage sans rencontrer d'effort résistant contrairement à l'invention.The figure 11 illustrates such an example, and superimposes the torque profile obtained with a particular variant of the invention, in solid lines, corresponding to the passage of three successive hard points, also called bumps, before immobilization in the indexing position at the angle θM, with, for comparison, the increase in torque in the last degrees of closure of a conventional traditional face of the prior art (which may in particular require an angular amplitude of the order of two turns), in broken lines . In such a traditional screwing, the only resistance to rotation is the mechanical friction forces due in particular to the axial forces generated by the compression of a seal at the end of the stroke, and to the elastic deformation of the components present during the permanent mechanical blocking. It can be seen there that reaching the level of torque guaranteeing the tightness of the joint (s) 9 is reached only for a much greater relative angle, and that there is no threshold effect on disassembly, the loss of tightness being done in the case of unscrewing without encountering any resistant force unlike the invention.

De plus, la valeur angulaire θV correspondant au vissage maximal avec un couple γV correspond à la fin d'une courbe de croissance de couple, dont la pente devient extrêmement raide au voisinage de cette valeur θV : ce qui signifie qu'un sous-ensemble vissé qui est alors soumis à un effort important risque de se dévisser, sans aucun garde-fou pour empêcher un dévissage total, ni la perte d'étanchéité, puisque le couple nécessaire au dévissage est alors dégressif, et l'énergie à fournir pour le dévissage plus faible que dans le cas de l'invention.In addition, the angular value θV corresponding to the maximum screwing with a torque γV corresponds to the end of a torque growth curve, the slope of which becomes extremely steep in the vicinity of this value θV: which means that a subset screwed which is then subjected to a significant effort risks unscrewing, without any guardrail to prevent total unscrewing, or loss of tightness, since the torque necessary for unscrewing is then declining, and the energy to be supplied for the lower unscrewing than in the case of the invention.

Dans une autre variante encore, non illustrée, une même bosse coopère successivement avec plusieurs dégagements, qui peuvent être chacun de même profondeur dans une réalisation particulière, créant alors une valeur d'effort résistant fixe, et qu'il faut passer à plusieurs reprises pour arriver en position fermée et indexée. Il est, encore, possible de panacher ces deux dernières variantes, tout est possible, les usinages à réaliser étant peu complexes.In yet another variant, not shown, the same hump cooperates successively with several clearances, which may each be of the same depth in a particular embodiment, thus creating a fixed resistance force value, and which must be passed repeatedly to arrive in the closed and indexed position. It is, again, possible to mix these last two variants, everything is possible, the machining to be carried out is not very complex.

Au contraire, l'invention nécessite, lors de l'assemblage, le franchissement successif, dans une sorte de rampe, de plusieurs bosses de couple de résistance croissante, mais aussi au démontage, car, depuis la position finale indexée θM, notamment sur une éventuelle butée mécanique (qui n'est toutefois pas nécessaire dans le cadre de l'invention), toute application d'un effort soudain se traduit, dans le pire des cas, par le franchissement d'une seule bosse, sans désassemblage total, avec un décalage visuel, et surtout sans perte d'étanchéité ni risque de pollution de l'intérieur de la montre. Dans l'exemple illustré l'opérateur doit franchir successivement trois seuils, visible optiquement en raison du décalage, avant d'avoir une perte d'étanchéité.On the contrary, the invention requires, during assembly, the successive crossing, in a sort of ramp, of several bumps of torque of increasing resistance, but also upon dismantling, since, from the final position indexed θM, in particular on a possible mechanical stop (which is however not necessary within the framework of the invention), any application of a sudden force results, in the worst case, by the crossing of a single bump, without total disassembly, with a visual shift, and above all without loss of tightness or risk of pollution of inside the watch. In the example illustrated the operator must successively cross three thresholds, visible optically due to the offset, before having a loss of tightness.

Dans un cas particulier, chaque cran est identique, et son passage oppose un même couple résistant.In a particular case, each notch is identical, and its passage opposes the same resisting torque.

Dans une variante avantageuse, plusieurs crans se succèdent, et l'opérateur doit appliquer un couple croissant, comme dans l'exemple des trois crans de la figure 11. Le coefficient multiplicateur de couple résistant, d'un cran à l'autre, peut notamment être compris entre 1,2 et 2,2.In an advantageous variant, several notches follow one another, and the operator must apply an increasing torque, as in the example of the three notches of the figure 11 . The multiplying coefficient of resistant torque, from one notch to another, can in particular be between 1.2 and 2.2.

L'invention est avantageuse car parfaitement compatible avec des dimensions horlogères, tout en ayant une capacité d'un effort résistant élevé, qui peut atteindre plusieurs N.m, par exemple dans le cas d'un troisième composant en matériau métallique au moins partiellement amorphe. Même avec des matériaux plus courants pour la fabrication de bagues techniques, POM, polyuréthane ou similaire, et des dimensions axiales et radiales de quelques dixièmes de millimètre, le couple résistant excède facilement un N.m.The invention is advantageous because it is perfectly compatible with watchmaking dimensions, while having a capacity for a high resistant force, which can reach several N.m, for example in the case of a third component made of at least partially amorphous metallic material. Even with more common materials for the manufacture of technical rings, POM, polyurethane or similar, and axial and radial dimensions of a few tenths of a millimeter, the resistant torque easily exceeds one N.m.

D'ailleurs, dans le cas où la pièce d'horlogerie ou de bijouterie est soumise à des contraintes particulières de grande ampleur, le démontage du mécanisme selon l'invention nécessite le maintien de l'application d'un éventuel effort d'origine accidentelle pendant une course angulaire importante, de 7 à 8° pour le franchissement d'une seule bosse dans l'exemple illustré, la sécurité restant encore assurée si plusieurs bosses se succèdent, alors que, en solution vissée de l'art antérieur, le démontage est consommé dans une course angulaire de l'ordre de 2° seulement, et donc la perte d'étanchéité également.Moreover, in the case where the timepiece or jewelry is subjected to particular constraints of great magnitude, the dismantling of the mechanism according to the invention requires the maintenance of the application of any effort of accidental origin. during a large angular stroke, from 7 to 8 ° for the crossing of a single bump in the example illustrated, the security still being ensured if several bumps succeed, while, in screwed solution of the prior art, disassembly is consumed in an angular travel of the order of only 2 °, and therefore the loss of tightness also.

Dans une variante, l'indexage angulaire peut être garanti par une butée 28 de limitation de course. Mais, de préférence, c'est le troisième composant 20 qui remplit, de facto, la fonction de butée, par l'exercice d'un couple résistant particulièrement élevé. Une telle butée mécanique n'est de ce fait pas absolument nécessaire.In a variant, the angular indexing can be guaranteed by a stop 28 for limiting the travel. But, preferably, it is the third component 20 which fulfills, de facto, the stop function, by the exercise of a particularly high resistant torque. Such a mechanical stop is therefore not absolutely necessary.

L'invention permet, ainsi, de prévenir tout démontage inopiné et involontaire du sous-ensemble 100, par exemple sous l'effet de vibrations, de cycles de dilatation successifs, par une utilisation malencontreuse de l'utilisateur, ou autre.The invention thus makes it possible to prevent any unintentional and involuntary disassembly of the sub-assembly 100, for example under the effect of vibrations, of successive expansion cycles, by unfortunate use of the user, or other.

De façon préférée, le démontage nécessite un outil spécial non commercialisé, ce qui assure l'exécution de la maintenance par du personnel d'après-vente possédant les qualifications requises.Preferably, disassembly requires a special tool that is not sold, which ensures that maintenance is carried out by after-sales personnel with the required qualifications.

Les figures illustrent différentes variantes nullement limitatives.The figures illustrate various variants which are in no way limitative.

Les figures 1 à 7 illustrent une première variante, où le troisième composant 20 est une bague 24 maintenue en appui sur une surface plane 5 que comportent les rebords 2 du premier composant 1 constitué par une carrure, et les prolongements de ces rebords 2. Cette bague 24 est bien solidarisée angulairement avec le premier composant 1, par des ergots 29 d'anti-rotation dont les contours extérieurs sont logés de façon complémentaire dans des logements 6 de la carrure 1. Les trois composants en présence comportent ici chacun trois fois les mêmes contours, également répartis à 120°. Le deuxième composant 10 est un fond, manipulé par un opérateur, de préférence à l'aide d'un outil spécial. Au-dessus de la jupe 11 de ce fond 10, le rebord 12 est contourné de façon à pouvoir déformer progressivement la bague 24 lors de sa rotation (dans le sens anti-horaire pour ces figures). Ce rebord 12 comporte en particulier une rampe 18 qui fait fléchir les surfaces antagonistes de la bague 24. Cette rampe est ici suivie d'un dégagement 17 qui autorise le mouvement de crans saillants 27, 28, que comporte intérieurement la bague 24, dont l'un 27 est sensiblement parallèle à un dégagement 25 que comporte la bague 24 sur sa face extérieure, au niveau d'une telle zone déformable 50, tandis que l'autre 28 fait face à une portée d'appui sensiblement cylindrique de la bague 24. Un creux 26 sépare ces crans saillants 27 et 28 sur la face intérieure de la bague 24.The Figures 1 to 7 illustrate a first variant, where the third component 20 is a ring 24 held in abutment on a flat surface 5 that includes the edges 2 of the first component 1 consisting of a middle part, and the extensions of these edges 2. This ring 24 is well secured angularly with the first component 1, by anti-rotation lugs 29 whose external contours are accommodated in a complementary manner in housings 6 of the middle part. The three components present here each have the same contours three times, equally distributed at 120 °. The second component 10 is a bottom, manipulated by an operator, preferably using a special tool. Above the skirt 11 of this bottom 10, the rim 12 is bypassed so as to be able to gradually deform the ring 24 during its rotation (counterclockwise for these figures). This rim 12 comprises in particular a ramp 18 which causes the opposing surfaces of the ring 24 to bend. This ramp is here followed by a clearance 17 which allows the movement of projecting notches 27, 28, which the ring 24 has internally, the l one 27 is substantially parallel to a clearance 25 which the ring 24 has on its outer face, at the level of such a deformable zone 50, while the other 28 faces a substantially cylindrical bearing surface of the ring 24 A recess 26 separates these projecting notches 27 and 28 on the inside of the ring 24.

Les figures 8 à 10 illustrent une deuxième variante, assez similaire à la précédente, comportant aussi une répétition à 120°, le fond 10 comporte ici, après la rampe 18 et séparés par des reliefs intermédiaires, trois dégagements 171, 172, 173, qui sont agencés pour coopérer successivement avec des bossages 271, 272, 273 de la bague. Le repère angulaire 19 du fond 10 permet de repérer la position angulaire relative de la carrure 1 et du fond 10 : 50° sur la figure 8, 30° sur la figure 9, 0° sur la figure 10. On comprend que, lors de la progression angulaire, tout d'abord un seul couple dégagement-bossage171/ 273 oppose un premier effort résistant lors du passage du cran qu'il constitue; puis, un peu plus loin, deux couples dégagement-bossage171/272 et 172/273 opposent ensemble un deuxième effort résistant supérieur au premier ; puis, encore plus loin, trois couples dégagement-bossage 171/2171, 172/272 et 173/273 opposent ensemble un troisième effort résistant supérieur au deuxième. On a ainsi un moyen très simple permettant d'opposer un effort résistant croissant en fonction de l'angle de rotation. La figure 11 montre bien le passage de chacun de ces crans, et la croissance du niveau de couple maximal associé.The figures 8 to 10 illustrate a second variant, quite similar to the previous one, also comprising a repetition at 120 °, the bottom 10 comprises here, after the ramp 18 and separated by intermediate reliefs, three clearances 171, 172, 173, which are arranged to cooperate successively with bosses 271, 272, 273 of the ring. The angular reference 19 of the base 10 makes it possible to locate the relative angular position of the middle part 1 and of the base 10: 50 ° on the figure 8 , 30 ° on the figure 9 , 0 ° on the figure 10 . It is understood that, during the angular progression, first of all a single clearance-boss pair 171/273 opposes a first resistant force during the passage of the notch which it constitutes; then, a little further, two clearance-boss couples171 / 272 and 172/273 together oppose a second resistant force greater than the first; then, even further, three clearance-boss couples 171/2171, 172/272 and 173/273 together oppose a third resistant force greater than the second. There is thus a very simple means for opposing an increasing resistant force as a function of the angle of rotation. The figure 11 shows clearly the passage of each of these notches, and the growth of the associated maximum torque level.

L'invention se prête bien aux cas où le sous-ensemble 100 comporte des composants 1 et 10 réalisés dans des matériaux différents, avec des coefficients de dilatation différents, ou encore des matières fragiles, ou dures (céramique, saphir), qui n'autorisent pas des modes de fixation standard. Citons parmi des configurations classiques l'assemblage d'une carrure en or avec un fond saphir, ou encore une boîte entièrement en céramique, une combinaison métal-céramique, ou similaires.The invention lends itself well to cases where the sub-assembly 100 comprises components 1 and 10 made of different materials, with different coefficients of expansion, or also fragile or hard materials (ceramic, sapphire), which do not not allow standard fixing methods. Let us quote among classic configurations the assembly of a middle in gold with a sapphire back, or still a box entirely in ceramic, a metal-ceramic combination, or similar.

Le troisième composant 20 est de préférence une bague, qui peut être réalisée en différents matériaux, notamment POM, polyuréthane, matière à base polymère, ou élastomère, alliage métallique au moins partiellement amorphe, le matériau choisi déterminant le couple de serrage maximal, ainsi une bague en alliage amorphe autorise un couple de serrage d'environ 3.2 N.m, similaire à celui usuel d'un fond vissé sur une carrure, pour un joint 9 de même taille. Cette bague peut encore être réalisée en métal amorphe, inox, CuBe, « Liquidmetal© », voire être bi-matériaux, par exemple avec une âme en matériau plastique avec des inserts surmoulés, métalliques, ou en céramique, ou autre. L'intérêt d'une telle bague, de préférence dans un matériau élastique polymère ou similaire, est sa facilité de logement dans un volume dont l'espace libre est très limité, où il est impossible d'implanter en toute sécurité un élément métallique susceptible de casser.The third component 20 is preferably a ring, which can be made of different materials, in particular POM, polyurethane, polymer-based material, or elastomer, at least partially amorphous metal alloy, the material chosen determining the maximum tightening torque, thus a amorphous alloy ring allows a tightening torque of about 3.2 Nm, similar to that usual for a bottom screwed onto a middle part, for a gasket 9 of the same size. This ring can also be made of amorphous metal, stainless steel, CuBe, "Liquidmetal ©", or even be bi-material, for example with a core of plastic material with molded inserts, metallic, or ceramic, or other. The advantage of such a ring, preferably in an elastic polymer material or the like, is its ease of accommodation in a volume whose free space is very limited, where it is impossible to safely implant a metallic element capable to break.

Naturellement, le matériau du troisième composant 20 peut aussi être plus complexe, notamment sous la forme d'une matière de type élastomère chargée avec des fibres techniques telles que « Kevlar® » ou similaire, ou avec un additif anti-usure tel que polytétrafluoroéthylène dit PTFE, ou autre.Naturally, the material of the third component 20 can also be more complex, in particular in the form of an elastomer type material loaded with technical fibers such as “Kevlar®” or the like, or with an anti-wear additive such as said polytetrafluoroethylene. PTFE, or other.

Un avantage important de l'invention est de nécessiter ni perçage ni taraudage, mais uniquement des usinages simples réalisables avec une certaine facilité, évitant ainsi toute salissure ou pollution de la montre, et autorisant un coût modéré.An important advantage of the invention is that it requires neither drilling nor tapping, but only simple machining which can be carried out with a certain ease, thus avoiding any soiling or pollution of the watch, and allowing a moderate cost.

Plus particulièrement, et tel que visible sur les figures 1 à 10 et 12, le premier composant 1 est une carrure et le deuxième composant 10 est un fond. Dans une variante particulière, la présence d'au moins un joint d'étanchéité est requise. Dans une variante non illustrée, le premier composant 1 est un fond et le deuxième composant 10 est une pièce d'aspect, telle qu'un médaillon, ou similaire, rapportée sur ce fond, auquel cas un joint entre eux n'est pas nécessaire, et la présence d'un ressort pouvant parfaitement suffire dans une variante comportant des moyens de répulsion.More particularly, and as visible on the Figures 1 to 10 and 12 , the first component 1 is a middle part and the second component 10 is a background. In a particular variant, the presence of at least one seal is required. In a variant not illustrated, the first component 1 is a base and the second component 10 is an appearance part, such as a medallion, or the like, attached to this base, in which case a seal between them is not necessary, and the presence of a spring which may be perfectly sufficient in a variant comprising repulsion means.

On note, à ce propos, que l'invention peut être mise en œuvre sans de tels moyens de répulsion, notamment pour des applications d'habillage ou similaire.It should be noted, in this regard, that the invention can be implemented without such repulsion means, in particular for covering or similar applications.

Dans une autre application, le premier composant 1 est une carrure et le deuxième composant 10 est un réhaut ou une lunette, tel que visible sur la figure 13. Ce cas convient bien à une variante dans laquelle un premier composant et un deuxième composant tendent à être éloignés l'un de l'autre, par répulsion magnétique ou encore par un élément élastique tel qu'un jonc, c'est-à-dire une bague mince, non nécessairement fermée, ou plus particulièrement un jonc comportant des segments analogues à un rochet pour n'autoriser facilement qu'une manœuvre unidirectionnelle, comme dans le cas particulier d'utilisation de l'invention pour une lunette unidirectionnelle. Un tel jonc peut être filiforme, de section sensiblement ronde, ou bien à section rectangulaire, ou autre. Ou, encore le troisième composant 20 constitue tout simplement lui-même les moyens de répulsion, ce qui réduit sensiblement le nombre de composants tout en assurant très bien le maintien requis.In another application, the first component 1 is a middle part and the second component 10 is a flange or bezel, as visible on the figure 13 . This case is well suited to a variant in which a first component and a second component tend to be distant from each other, by magnetic repulsion or by an elastic element such as a rod, that is to say a thin ring, not necessarily closed, or more particularly a rod comprising segments similar to a ratchet to easily authorize only a unidirectional maneuver, as in the particular case of use of the invention for a unidirectional telescope. Such a rod may be filiform, of substantially round section, or else of rectangular section, or the like. Or, the third component 20 simply constitutes the repulsion means itself, which significantly reduces the number of components while ensuring the required maintenance very well.

Dans une autre application encore, le premier composant 1 est une carrure ou un tube rapporté sur une carrure, et le deuxième composant 10 est une couronne, tel que visible sur la figure 14. Dans une variante, le deuxième composant 10 est une tige de couronne ou un poussoir. Dans ces cas de figure aussi, la présence d'au moins un joint d'étanchéité est obligatoire.In yet another application, the first component 1 is a middle part or a tube attached to a middle part, and the second component 10 is a crown, as visible on the figure 14 . In a variant, the second component 10 is a crown stem or a pusher. In these cases too, the presence of at least one seal is mandatory.

L'invention est apte à de nombreuses applications en horlogerie, par exemple pour une valve hélium sur une montre de plongée, ou encore pour des composants d'habillage tels qu'un bracelet, une boucle, un fermoir, ou autre. Il en est de même en bijouterie, pour effectuer la fermeture de boutons de manchette, de boucles d'oreilles, ou encore pour fixer des pierreries ou des éléments décorés conçus de manière amovible.The invention is suitable for numerous applications in watchmaking, for example for a helium valve on a diving watch, or also for covering components such as a bracelet, a buckle, a clasp, or the like. It is the same in jewelry, to close cuff links, earrings, or to fix precious stones or decorated elements removably designed.

L'invention concerne encore une pièce d'horlogerie ou montre 1000 comportant un tel sous-ensemble d'habillage 100.The invention also relates to a timepiece or watch 1000 comprising such a covering sub-assembly 100.

L'invention concerne encore un bijou comportant un tel sous-ensemble 100.The invention also relates to a jewel comprising such a sub-assembly 100.

En somme, l'invention permet de disposer d'un sous-ensemble à assemblage à baïonnette, avec une bague de maintien montée sur un premier composant, notamment une bague sensiblement torique. Cette bague peut aussi être ouverte, par exemple avec une fente comme un circlips ou similaire, pour faciliter le montage. Lors de la rotation relative du deuxième composant par rapport au premier composant, des encoches du deuxième composant viennent se bloquer avec des encoches de la bague. Cette conception est peu encombrante, elle assure le maintien de l'étanchéité de la montre, qu'elle protège contre tout démontage accidentel.In summary, the invention makes it possible to have a sub-assembly with bayonet assembly, with a retaining ring mounted on a first component, in particular a substantially O-ring. This ring can also be opened, for example with a slot such as a circlip or the like, to facilitate mounting. During the relative rotation of the second component with respect to the first component, notches in the second component are blocked with notches in the ring. This design takes up little space, it ensures that the watch remains watertight, which it protects against accidental dismantling.

L'invention permet d'assurer l'orientation parfaite d'un composant maintenu bloqué dans sa position de service.The invention makes it possible to ensure the perfect orientation of a component kept locked in its service position.

Quand le sous-ensemble selon l'invention remplit une fonction de fermeture d'un fond ou similaire, il procure de nombreux avantages :

  • à partir d'une première position angulaire relative, entre le premier composant et le deuxième composant, où la fonction d'étanchéité est assurée, par exemple dès que la compression d'un joint d'étanchéité est effectuée, il existe, dans le mécanisme selon l'invention, un domaine élargi de valeurs angulaires relatives entre ce premier composant et ce deuxième composant, dans lequel l'étanchéité reste garantie, par exemple de plusieurs dizaines de degrés, ce qui est important en comparaison avec par exemple un fond vissé standard dans le cas d'un sous-ensemble carrure-fond, où un dévissage de quelques degrés seulement (moins de dix degrés) entraîne la perte d'étanchéité et la nécessité d'une remise en propreté et d'une nouvelle de revendication, alors que selon l'invention ce n'est qu'après le passage du tout dernier cran lors du démontage que la perte d'étanchéité devient possible si l'on poursuit la rotation;
  • une fermeture par succession de crans qui présente un couple de fermeture du fond largement dimensionné, à la fois suffisant et acceptable pour un tel montage, grâce en particulier à la multiplication du nombre de bosses réparties sur la circonférence, avec, pour l'opérateur, une sensation de vissage par étapes d'augmentation du couple de fermeture jusqu'à la position désirée, réputée être la position fermée, qui est aussi bien perceptible ;
  • une sécurité d'ouverture, qui est augmentée par deux facteurs : la nécessité pour l'opérateur de fournir une énergie positive importante pour passer un cran ; et le passage successif de plusieurs crans préalable à toute perte d'étanchéité.
When the sub-assembly according to the invention fulfills a function of closing a bottom or the like, it provides numerous advantages:
  • from a first relative angular position, between the first component and the second component, where the sealing function is ensured, for example as soon as the compression of a seal is carried out, there exists, in the mechanism according to the invention, an enlarged range of relative angular values between this first component and this second component, in which the seal remains guaranteed, for example by several tens of degrees, which is important in comparison with for example a standard screwed back in the case of a case-back sub-assembly, where a unscrewing of only a few degrees (less than ten degrees) results in the loss of tightness and the need for cleanliness and a new claim, then that according to the invention it is only after the passage of the very last notch during disassembly that the loss of tightness becomes possible if the rotation is continued;
  • a closure by succession of notches which has a largely dimensioned closing torque of the bottom, both sufficient and acceptable for such an assembly, thanks in particular to the multiplication of the number of bumps distributed over the circumference, with, for the operator, a feeling of screwing in stages of increasing the closing torque to the desired position, known to be the closed position, which is also noticeable;
  • opening security, which is increased by two factors: the need for the operator to provide significant positive energy to pass a notch; and the successive passage of several notches prior to any loss of tightness.

L'invention autorise, encore, la mise en coopération de composants antagonistes réalisés en matières de différentes natures, sans contrainte de dilatation frottement, élasticité, ou autre, sans nécessiter d'élément de fixation extérieur tel que vis ou similaire, sans pas de vis ni usinage risquant de fragiliser des matières particulières telles que céramiques, saphir, et similaires. Elle présente une très bonne résistance à un dévissage accidentel ou même volontaire par vibration ou du type Chapuis-chocs. L'invention permet aussi d'assurer l'interchangeabilité des composants, et, par conséquent, une personnalisation accrue des montres ou des bijoux des utilisateurs.The invention also authorizes the co-operation of antagonistic components made of materials of different natures, without friction, friction, elasticity or other constraint, without the need for an external fixing element such as a screw or the like, without a screw nor machining liable to weaken particular materials such as ceramics, sapphire, and the like. It has very good resistance to accidental or even voluntary unscrewing by vibration or of the Chapuis-choc type. The invention also makes it possible to ensure the interchangeability of the components, and, consequently, increased personalization of the watches or jewelry of the users.

Cette invention est applicable aussi bien à des montres ou bijoux réalisés en matériaux précieux qu'à des réalisations de grande série comportant des composants de faible coût unitaire, notamment en matière plastique ou similaire.This invention is applicable both to watches or jewelry made of precious materials and to mass-produced products comprising components of low unit cost, in particular plastic or similar.

L'invention se prête bien aux cas où le sous-ensemble 100 comporte des composants 1 et 10 réalisés dans des matériaux différents, avec des coefficients de dilatation différents, ou encore des matières fragiles, ou dures (céramique, saphir, pierres précieuses, gemmes, camées), qui n'autorisent pas des modes de fixation standard. Citons parmi des configurations classiques l'assemblage d'une carrure en or avec un fond saphir, ou encore une boîte entièrement en céramique, une combinaison métal-céramique, ou similaires. Les composants 1 et 10 peuvent ainsi être réalisés en toutes sortes de matériaux : alliages métalliques, notamment précieux ou titrés, aciers inoxydables, alliages métalliques au moins partiellement amorphe, ou « Liquidmetal© » ou similaire, céramiques, saphir, minéraux, pierres dures, caoutchouc, matières plastiques et notamment élastomères thermoplastiques dits TPE dont notamment polyuréthane thermoplastique dit TPU, polycarbonates dits PC, chlorures de polyvinyle dits PVC, polyacétals ou polyoxyméthylène dit POM, silicone, « Nylon® », pour ne citer, non limitativement, que des matériaux usuels en construction horlogère et en bijouterie-joaillerie.The invention lends itself well to cases where the sub-assembly 100 comprises components 1 and 10 made of different materials, with different coefficients of expansion, or even fragile or hard materials (ceramic, sapphire, precious stones, gems , cameos), which do not allow standard mounting methods. Let us quote among classic configurations the assembly of a middle in gold with a sapphire back, or still a box entirely in ceramic, a metal-ceramic combination, or similar. Components 1 and 10 can thus be made of all kinds of materials: metallic alloys, in particular precious or titrated, stainless steels, metallic alloys at least partially amorphous, or “Liquidmetal ©” or similar, ceramics, sapphire, minerals, hard stones, rubber, plastics and in particular thermoplastic elastomers called TPE including in particular thermoplastic polyurethane called TPU, polycarbonates called PC, polyvinyl chlorides called PVC, polyacetals or polyoxymethylene called POM, silicone, “Nylon®”, to name, but not limited to, only materials usual in watchmaking construction and in jewelry.

Claims (14)

  1. Exterior sub-assembly (100) for a timepiece, or for a watch, comprising a first component (1) having rims (2) protruding from a first skirt alternated with first recesses (3), and a second component (10) including wings (12) protruding from a second skirt (11) alternated with second recesses (13), arranged to occupy a first disassembled position of insertion in which said first component (1) and said second component (10) have a first angular orientation with respect to each other, or to occupy a second, assembled and locked position in which said first component (1) and said second component (10) have a second angular orientation with respect to each other, different from said first angular orientation, and are held axially in a bayonet mount between at least two said rims (2) and at least two said wings (12), said sub-assembly (100) including at least one third component (20; 30) which is arranged to be radially or, respectively, axially inserted between said first component (1) and said second component (10) and fixed in rotation with respect to one of said components, and which includes at least one radially or, respectively, axially elastically deformable area (50), said deformable area (50) being arranged to oppose a resistance torque of variable moment to any relative tangential torque between said first component (1) and said second component (10), characterized in that said deformable area (50) including at least one catch (26) arranged to cooperate with at least one complementary relief portion (18) comprised in whichever one of the components (1, 10) with respect to which said third component (20; 30) is free to rotate, and any passage of a said catch (26) over a said complementary relief portion (18) generating a said resistance torque tending to gradually resist the relative rotational movement between said first component (1) and said second component (10), at least one said catch (26) being arranged for the relative angular indexing in the indexing position between said first component (1) and said second component (10), and characterized in that, in said first disassembled position of insertion, said first component (1) and said second component (10) have a first angular orientation with respect to each other, and are held at a distance from one another by repulsion means including at least one sealing gasket (9), and in that, in said second, assembled and locked position, said first component (1) and said second component (10) are held axially against a resistance force exerted by said repulsion means.
  2. Exterior sub-assembly (100) according to claim 1, characterized in that said repulsion means comprise magnetic repulsion means or at least one elastic element.
  3. Exterior sub-assembly (100) according to one of claims 1 to 2, characterized in that said rims (2) protrude radially inwards from said first skirt, said wings (12) protrude radially outwards from said second skirt (11), in that said third component (20; 30) is ring-shaped, and arranged to be inserted radially between said first component (1) and said second component (10).
  4. Exterior sub-assembly (100) according to one of claims 1 to 3, characterized in that said first component (1) includes at least one stop housing (6) for an antirotational lug (29) comprised in said third component (20; 30).
  5. Exterior sub-assembly (100) according to one of claims 1 to 4, characterized in that said deformable area (50) includes a plurality of said catches (26) arranged to provide successive resistance against the same said complementary relief portion (18).
  6. Exterior sub-assembly (100) according to claim 5, characterized in that, in the same said deformable area (50), said successive catches (26) are arranged to provide increasing resistance against the same said complementary relief portion (18).
  7. Exterior sub-assembly (100) according to one of claims 1 to 6, characterized in that said third component (20; 30) is a ring (24) held in abutment on a plane surface (5) comprised in said rims (2) of said first component (1) with which said ring (24) is angularly integral, and in that said rim (12) of said second component (10) is arranged to be able to gradually deform said ring (24) during the rotation thereof, said rim (12) including a ramp (18) arranged to bend the opposing surfaces of said ring (24), which ramp (18) is followed by a plurality of recesses (171, 172, 173), which are arranged to cooperate in succession with bosses (271, 272, 273) comprised in said ring, and in that, during the relative rotation between said first component (1) and said second component (10) first of all a single recess/boss pair (171; 273) opposes to said rotation a first resistance force on the passage of the catch that it forms; then, slightly further on, two recess/boss pairs (171; 272, 172; 273) both oppose a second resistance force higher than the first, then, still further on, three recess/boss pairs (171; 2171, 172; 272, 173; 273) together oppose a third resistance force higher than the second.
  8. Exterior sub-assembly (100) according to one of claims 1 to 7, characterized in that said third component (20; 30) is in the form of an annular sector or a ring.
  9. Exterior sub-assembly (100) according to one of claims 1 to 8, characterized in that said first component (1) is a case middle and said second component (10) is a case back.
  10. Exterior sub-assembly (100) according to one of claims 1 to 8, characterized in that said first component (1) is a case middle and said second component (10) is a flange or a bezel.
  11. Exterior sub-assembly (100) according to one of claims 1 to 8, characterized in that said first component (1) is a case middle or a tube added to a case middle, and said second component (10) is a crown or a crown stem or a push-piece.
  12. Exterior sub-assembly (100) according to one of claims 1 to 11, characterized in that said third component (20; 30) forms said repulsion means.
  13. Watch (1000) including an exterior sub-assembly (100) according to one of claims 1 to 12.
  14. Piece of jewellery comprising an exterior sub-assembly (100) according to one of claims 1 to 12.
EP16181139.3A 2016-07-26 2016-07-26 Casing subassembly for a timepiece, watch or jewel Active EP3276432B1 (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
CH00965/16A CH712740B1 (en) 2016-07-26 2016-07-26 Sub-assembly of a covering for a timepiece, in particular a watch, or for a piece of jewelry.
EP16181139.3A EP3276432B1 (en) 2016-07-26 2016-07-26 Casing subassembly for a timepiece, watch or jewel
US15/654,056 US10088806B2 (en) 2016-07-26 2017-07-19 Exterior sub-assembly for a timepiece or watch or piece of jewellery
JP2017141708A JP6453949B2 (en) 2016-07-26 2017-07-21 Exterior subassemblies for watches or watches or jewelry
CN201710610745.3A CN107656434B (en) 2016-07-26 2017-07-25 External subassembly for a timepiece or watch or a jewellery item
HK18109022.3A HK1249593A1 (en) 2016-07-26 2018-07-11 Exterior sub-assembly for a timepiece or watch or piece of jewellery

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP16181139.3A EP3276432B1 (en) 2016-07-26 2016-07-26 Casing subassembly for a timepiece, watch or jewel

Publications (2)

Publication Number Publication Date
EP3276432A1 EP3276432A1 (en) 2018-01-31
EP3276432B1 true EP3276432B1 (en) 2020-03-25

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Application Number Title Priority Date Filing Date
EP16181139.3A Active EP3276432B1 (en) 2016-07-26 2016-07-26 Casing subassembly for a timepiece, watch or jewel

Country Status (6)

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US (1) US10088806B2 (en)
EP (1) EP3276432B1 (en)
JP (1) JP6453949B2 (en)
CN (1) CN107656434B (en)
CH (1) CH712740B1 (en)
HK (1) HK1249593A1 (en)

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Also Published As

Publication number Publication date
CN107656434B (en) 2020-12-01
CN107656434A (en) 2018-02-02
JP6453949B2 (en) 2019-01-16
CH712740B1 (en) 2020-08-31
HK1249593A1 (en) 2018-11-02
US20180032034A1 (en) 2018-02-01
US10088806B2 (en) 2018-10-02
JP2018017731A (en) 2018-02-01
EP3276432A1 (en) 2018-01-31
CH712740A2 (en) 2018-01-31

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