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EP3608730B1 - Annular rotating bezel system comprising a spring ring provided with at least two lugs - Google Patents

Annular rotating bezel system comprising a spring ring provided with at least two lugs Download PDF

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Publication number
EP3608730B1
EP3608730B1 EP18187998.2A EP18187998A EP3608730B1 EP 3608730 B1 EP3608730 B1 EP 3608730B1 EP 18187998 A EP18187998 A EP 18187998A EP 3608730 B1 EP3608730 B1 EP 3608730B1
Authority
EP
European Patent Office
Prior art keywords
rotating bezel
ring
spring ring
lugs
annular
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
EP18187998.2A
Other languages
German (de)
French (fr)
Other versions
EP3608730A1 (en
Inventor
Olivier Silvant
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 EP18187998.2A priority Critical patent/EP3608730B1/en
Priority to US16/458,638 priority patent/US11243496B2/en
Priority to JP2019128116A priority patent/JP6749454B2/en
Priority to CN201910720875.1A priority patent/CN110824882B/en
Publication of EP3608730A1 publication Critical patent/EP3608730A1/en
Application granted granted Critical
Publication of EP3608730B1 publication Critical patent/EP3608730B1/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
    • 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
    • G04B19/06—Dials
    • G04B19/18—Graduations on the crystal or glass, on the bezel, or on the rim

Definitions

  • the invention relates to an annular rotating bezel system.
  • the invention also relates to a watch case comprising a middle part and the annular rotating bezel system rotatably mounted on the middle part.
  • the invention further relates to a watch comprising the watch case.
  • the watch is for example a diving watch, without this being limiting in the context of the present invention.
  • Known annular rotating bezel systems include a rotating bezel, a toothed ring, and a spring ring.
  • a rotating bezel system is for example described in the patent document EP 2 672 333 A1 .
  • the spring ring is angularly integral with the rotating bezel, and the toothed ring is angularly integral with the middle part.
  • the toothed ring has several teeth regularly distributed over its outer periphery, in this case 120 teeth in the exemplary embodiment given in this document.
  • the spring ring extends in a plane in which it is capable of deforming elastically along a radius, and cooperates elastically with the toothed ring.
  • three lugs in the form of elastic arms and intended to cooperate with the teeth of the toothed ring are provided in an inner periphery of the spring ring, by cutting the latter.
  • the three lugs are evenly distributed around the inner periphery of the spring ring. Therefore, whatever the position of the telescope, the three pins are always in engagement with the teeth of the toothed ring in same time, which leads to 120 stable positions for the rotating bezel.
  • the number of positions therefore corresponds to the number of teeth.
  • the resolution of the indexing of the position of the rotating bezel is therefore limited by the number of possible positions in total for the latter, in this case 120 positions.
  • the object of the invention is therefore to provide an annular rotating bezel system making it possible, with an equal number of teeth for the toothed ring compared to the systems of the prior art, to obtain a greater number of stable positions possible for the rotating bezel, and overcoming the aforementioned drawbacks of the state of the art.
  • the invention relates to an annular rotating bezel system which comprises the features mentioned in independent claim 1.
  • An advantage of the present invention is to allow, with an equal number of teeth for the toothed ring compared to the systems of the prior art, to obtain a greater number of possible stable positions for the rotating bezel. Indeed, thanks to the configuration according to which the or each angle of offset between two successive lugs has a value distinct from an integer submultiple of 360 degrees, a single lug is elastically and radially in engagement with the toothing of the ring. toothed in each position of the bezel. Number of The total possible positions for the bezel is then given by the result of the multiplication between the number of lugs on the spring ring, and the number of teeth on the toothed ring. This makes it possible to obtain a greater number of possible stable positions for the rotating bezel.
  • the spring ring comprises at least two thinned portions arranged to increase the flexibility of the spring ring in its plane, each lug extending from one of the thinned portions.
  • This makes it possible to increase the flexibility of the spring ring in its plane.
  • the spring ring works in bending in its plane, allowing the lugs that it carries to engage and disengage from the toothed ring according to the rotation of the bezel. This makes it possible to reduce the width necessary for the operation of the spring ring in the system, and therefore to obtain a saving in overall width of the assembly.
  • the rotating bezel comprises at least one bead extending over an internal lateral face of the bezel, and the spring ring has, on an outer periphery, at least one notch in which the bead of the bezel is engaged.
  • the toothed ring has, on an inner periphery, at least one bead intended to be received in a notch provided in a cylindrical outer surface of the middle part.
  • the teeth of the toothed ring and the lugs of the spring ring each have an asymmetric shape in the plane defined by the spring ring.
  • the spring ring can rotate relative to the toothed ring in only one predefined direction: clockwise or anti-clockwise depending on the shape chosen for the teeth.
  • This first exemplary embodiment of the invention therefore corresponds to a unidirectional rotating bezel.
  • the teeth of the toothed ring and the lugs of the spring ring each have a symmetrical shape in the plane defined by the spring ring.
  • the spring ring can rotate relative to the toothed ring in one or the other of the two directions: clockwise or anti-clockwise.
  • This second exemplary embodiment of the invention therefore corresponds to a bidirectional rotating bezel.
  • the annular rotating bezel system is formed of an independent module, said module being configured to be clipped onto the middle part.
  • This makes it possible to obtain a simple and practical assembly of the rotating bezel system on the caseband, also allowing easy disassembly. This makes it possible to simplify the manufacturing process of the watch case.
  • the clip-on mounting system used forms a free hooking system.
  • the invention also relates to a watch case comprising the annular rotating bezel system described above, and which comprises the characteristics mentioned in dependent claim 17.
  • a particular shape of the watch case is defined in dependent claim 18.
  • the invention also relates to a watch comprising the watch case described above, and which comprises the characteristics mentioned in dependent claim 19.
  • the figure 1 shows a watch 1 provided with a watch case 2.
  • the watch case 2 typically comprises a middle part 4.
  • the watch case 2 also comprises an annular rotating bezel system 6 as well as a watch movement which extends in a plan, the watch movement not being shown in the figures for reasons of clarity.
  • the annular rotating bezel system 6 is rotatably mounted on the middle part 4.
  • the annular rotating bezel system 6 is formed from an independent module.
  • the annular rotating bezel system 6 is for example clipped onto the middle part 4.
  • the caseband 4 is annular in shape.
  • the middle part 4 comprises a cylindrical outer surface 8.
  • the cylindrical outer surface 8 is for example provided with a peripheral shoulder defined by a side wall 12a and a base 12b.
  • This peripheral shoulder serves as a housing for the rotating bezel system 6.
  • the side wall 12a comprises an annular protuberance or bead 13 extending over the entire perimeter of the side wall 12a and allowing the rotating bezel system 6 to be hooked on. caseband 4, by clipping.
  • the annular rotating bezel system 6 rests on the base 12b.
  • the rotating bezel system 6 is thus mounted on the middle part 4, from above the latter, allowing the system 6 to be blocked in an axial direction perpendicular to the plane of the watch movement, while allowing rotation of the bezel around the middle part. 4.
  • the configuration of the watch case is substantially circular.
  • the middle part can be made of metal, typically steel, titanium, gold. , in platinum or in ceramic typically based on alumina, zirconia or silicon nitride.
  • the annular rotating bezel system 6 comprises a rotating bezel 14, a toothed ring 18 and a spring ring 20.
  • the system 6 further comprises an annular retaining ring 16.
  • the system 6 also comprises a ring.
  • decoration 22 forcibly engaged on the rotating bezel 14.
  • the decoration ring 22 carries for example graduations, typically diving graduations in the case of a diving watch 1.
  • the decorative ring 22 is for example made of ceramic.
  • the rotating bezel 14 is annular in shape and comprises an upper face 23a visible to the user and a lower face 23b. As shown on the figure 1 , the rotating bezel 14 is for example provided on an inner periphery with an annular rim 24. The rim annular 24 cooperates by clipping with the protuberance 13 of the middle part 4, and forms with the latter a free hooking system.
  • the rotating bezel 14 is for example made of metal but could be made of any other material, for example ceramic.
  • the annular ring 16 maintains the toothed ring 18 and the spring ring 20 in the bezel 14, in an axial direction perpendicular to the plane of the watch movement. This makes it possible to facilitate the mounting of the rotating bezel 14 on the middle part 4.
  • the annular ring 16 is driven into the rotating bezel 14, securing it to the latter.
  • the annular ring 16 is secured to the middle part 4.
  • the annular ring 16 rests on the base 12b of the middle part 4, and thus surrounds the cylindrical outer surface 8 of the middle part 4.
  • the annular ring 16 is configured to cooperate with the cylindrical outer surface 8 to allow the rotation of the rotating bezel 14 on the middle part 4.
  • the annular retaining ring 16 is for example a flat ring.
  • the annular retaining ring may comprise a simple annular ring of rectangular section over its entire periphery driven into the bezel 14.
  • the toothed ring 18 comprises a set of teeth 26.
  • the set of teeth 26 is provided with several teeth regularly distributed over one periphery of the toothed ring 18, typically on an outer periphery, over 360 degrees.
  • the toothed ring 18 also has, on its inner periphery, at least one bead 34 received in a notch 36 provided in the cylindrical outer surface 8 of the middle part 4.
  • the toothed ring 18 comprises three beads 34 distributed over 360 degrees and spaced two by two by 120 degrees.
  • the cylindrical outer surface 8 of the middle part 4 comprises three corresponding notches 36.
  • This system of beads 34 / notches 36 allows easy angular attachment of the toothed ring 18 to the middle part 4, while facilitating the positioning of the toothed ring 18 on the middle part 4.
  • This system also makes it possible to guide the rotating bezel system 6 for its mounting on the caseband 4.
  • the beads 34 are engaged in the notches 36, making it possible to snap the elements inside the system 6 and to clip the system 6 onto the caseband 4.
  • the toothed ring 18 is formed from a single piece of material.
  • the toothed ring 18 is for example made of a metal alloy, in particular a cobalt-based alloy (40% Co, 20% Cr, 16% Ni and. 7% Mo) commercially known as phynox or of steel typically a stainless steel for example 316L.
  • the toothed ring 18 may be made of a thermoplastic material, in particular a thermostable semi-crystalline thermoplastic material such as, for example, polyarylamide (Ixef®), polyetheretherketone (PEEK) or even a ceramic material such as zirconia or alumina.
  • the toothed ring 18 is arranged to fit into the spring ring 20, that is to say that the toothed ring 18 is dimensioned to be able to be placed in the spring ring 20.
  • the toothed ring 18 and the spring ring 20 are concentric and coplanar, and are held between the lower face 23b of the bezel 14 and an upper face of the retaining ring 16.
  • the spring ring 20 extends in a plane in which it is capable of deforming elastically along a radius.
  • the spring ring 20 cooperates elastically with the toothed ring 18.
  • the spring ring 20 comprises at least two lugs 40, each lug 40 being configured to be elastically and radially in engagement with the teeth 26 of the ring. toothed 18 in at least one position of the bezel 14.
  • the spring ring 20 comprises three lugs 40.
  • the lugs 40 are offset from one another by an offset angle ⁇ a , ⁇ b , ⁇ c .
  • Each offset angle ⁇ a , ⁇ b , ⁇ c between two successive lugs 40 has a distinct value of an integer submultiple of 360 degrees, as will be detailed below.
  • a single lug 40 is elastically and radially in engagement with the teeth 26 of the toothed ring 18.
  • the or the remaining lug (s) 40 are in equilibrium on the teeth of the toothed ring 18. In other words, this or these latter lug (s) 40 are then not in engagement with the toothing 26.
  • the spring ring 20 comprises at least two thinned portions 38.
  • Each lug 40 extends from one of the thinned portions 38.
  • the spring ring 20 comprises three thinned portions 38 distributed over 360 degrees, each thinned portion 38 having a lug 40 arranged in a middle part of the thinned portion 38.
  • the three thinned portions 38 are spaced two by two by 120 degrees.
  • the thinned portions 38 are arranged to increase the flexibility of the spring ring 20 in its plane. This configuration allows, when the toothed ring 18 is inserted inside the spring ring 20, that one of the lugs 40 cooperates with the toothing 26 of the toothed ring 18.
  • the thinned portions 38 are radially thinned.
  • the spring ring 20 has on its outer periphery at least one notch 42 in which a bead of the bezel 14 is engaged to link these two elements in rotation.
  • the spring ring 20 comprises three notches 42 distributed over 360 degrees and spaced two by two by 120 degrees
  • the rotating bezel 14 comprises on an internal lateral face three corresponding beads.
  • the notches 42 are formed in portions 46 of the spring ring 20 which are thicker than the thinned portions 38, in the middle parts of these portions 46.
  • the lugs 40 and the notches 42 form an alternation on the spring ring 20.
  • This bead / notch system makes it possible to easily link the spring ring 20 in rotation to the rotating bezel 14, while facilitating the positioning of the spring ring 20 in the bezel 14.
  • the spring ring 20 is formed from a single piece of material.
  • the spring ring 20 is for example made of a metal alloy having good spring properties, that is to say which easily deforms elastically while being able to deform significantly without undergoing plastic deformation, in particular phynox. ® or amorphous metal alloys.
  • the spring ring 20 can also, as a variant, be made of a synthetic material.
  • the teeth of the toothed ring 18 and the lugs 40 of the spring ring 20 have an asymmetric shape in the plane defined by the spring ring 20.
  • the asymmetric shape is for example a so-called "shape”.
  • wolf's tooth that is to say that the teeth and the lugs have substantially the shape of a right triangle.
  • the hypotenuse of the triangle formed by this pin 40 of the spring ring extends along the hypotenuse of the triangle formed by one of the teeth of the toothed ring 18.
  • the spring ring 20 can rotate relative to the toothed ring 18 in a single predefined direction: clockwise or anti-clockwise depending on the shape chosen for the teeth and lugs.
  • This first exemplary embodiment of the invention therefore corresponds to a unidirectional rotating bezel 14.
  • the teeth of the toothed ring 18 and the lugs 40 of the spring ring 20 have a symmetrical shape in the plane defined by the spring ring 20.
  • the symmetrical shape is for example a triangle shape. isosceles or equilateral triangle.
  • the spring ring 20 can rotate relative to the toothed ring 18 in one or the other of the two directions: clockwise or anti-clockwise.
  • This second exemplary embodiment of the invention therefore corresponds to a bidirectional rotating bezel 14.
  • the toothed ring has 120 teeth regularly distributed over its outer periphery
  • the spring ring 20 comprises three lugs 40a, 40b, 40c.
  • the number of possible positions in total for the bezel 14 given by the result of the multiplication between the number of lugs 40a-40c on the spring ring 20, and the number of teeth on the toothed ring 18, the system of Annular rotating bezel 6 according to this first embodiment has 360 possible stable positions.
  • the spring ring comprises a first lug 40a, a second lug 40b, and a third lug 40c.
  • the first and second lugs 40a, 40b are offset from each other by an offset angle ⁇ a
  • the second and third lugs 40b, 40c are offset from each other by an offset angle ⁇ b
  • the first and third lugs 40a , 40c are offset from each other by an offset angle ⁇ c .
  • the value of the offset angle ⁇ a is 121 degrees
  • the value of the offset angle ⁇ b is 121 degrees
  • the value of the offset angle ⁇ c is 118 degrees.
  • each angle of offset ⁇ a , ⁇ b , ⁇ c between two lugs successive 40a, 40b, 40c has a value distinct from an integer submultiple of 360 degrees.
  • the figure 2 represents the system 6 in a position of the bezel 14 “at 12 o'clock”. In this position, only the first lug 40a of the toothed ring 20 engages with the toothing 26. The second and third lugs 40b, 40c are balanced on the teeth of the toothed ring 18. When the user grasps bezel 14 and rotates it 1 degree clockwise, system 6 adopts the configuration shown in figure 3 . In this configuration, only the third lug 40c of the toothed ring 20 engages with the toothing 26. The first and second lugs 40a, 40b are balanced on the teeth of the toothed ring 18.
  • the toothed ring has 40 teeth regularly distributed over its outer periphery, and the spring ring 20 comprises three lugs 40a, 40b, 40c.
  • the annular rotating bezel system 6 thus has 120 possible stable positions.
  • the spring ring comprises a first lug 40a, a second lug 40b, and a third lug 40c.
  • the first and second lugs 40a, 40b are offset from each other by an offset angle ⁇ a
  • the second and third lugs 40b, 40c are offset from each other by an offset angle ⁇ b
  • the first and third lugs 40a, 40c are offset from each other by an offset angle ⁇ c .
  • the figure 6 represents the system 6 in a position of the bezel 14 “at 12 o'clock”. In this position, only the first lug 40a of the toothed ring 20 engages with the toothing 26. The second and third lugs 40b, 40c are balanced on the teeth of the toothed ring 18. When the user grasps bezel 14 and rotates it 3 degrees clockwise, system 6 adopts the configuration shown in figure 7 . In this configuration, only the third lug 40c of the toothed ring 20 engages with the toothing 26. The first and second lugs 40a, 40b are balanced on the teeth of the toothed ring 18.
  • the system 6 adopts the configuration shown on figure 8 .
  • the second lug 40b of the toothed ring 20 engages with the toothing 26.
  • the first and third lugs 40a, 40c are balanced on the teeth of the toothed ring 18.
  • the system 6 adopts the configuration shown on figure 9 .
  • the first lug 40a of the toothed ring 20 is once again alone in engagement with the toothing 26.
  • the second and third lugs 40b, 40c are balanced on the teeth of the toothed ring 18.
  • annular rotating bezel system according to the invention has been made with reference to a toothed ring angularly integral with the middle part, and to a spring ring angularly integral with the rotating bezel.
  • the reverse configuration is possible without departing from the scope of the present invention, that is to say that the toothed ring can be angularly integral with the rotating bezel, and the ring spring angularly integral with the middle part.
  • the invention has been described with reference to a spring ring provided with three lugs, the invention applies in the same way for rotating bezel systems provided with spring rings comprising two lugs, or even spring rings comprising four lugs and more.

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Description

DOMAINE TECHNIQUE DE L'INVENTIONTECHNICAL FIELD OF THE INVENTION

L'invention concerne un système de lunette tournante annulaire.The invention relates to an annular rotating bezel system.

L'invention concerne également une boîte de montre comprenant une carrure et le système de lunette tournante annulaire monté à rotation sur la carrure.The invention also relates to a watch case comprising a middle part and the annular rotating bezel system rotatably mounted on the middle part.

L'invention concerne en outre une montre comportant la boîte de montre. La montre est par exemple une montre de plongée, sans que cela ne soit limitatif dans le cadre de la présente inventionThe invention further relates to a watch comprising the watch case. The watch is for example a diving watch, without this being limiting in the context of the present invention.

ETAT DE LA TECHNIQUESTATE OF THE ART

Des systèmes de lunettes tournantes annulaires connus comprennent une lunette tournante, un anneau denté, et un anneau ressort. Un tel système de lunette tournante est par exemple décrit dans le document brevet EP 2 672 333 A1 . L'anneau ressort est angulairement solidaire de la lunette tournante, et l'anneau denté est angulairement solidaire de la carrure. L'anneau denté présente plusieurs dents régulièrement réparties sur son pourtour extérieur, en l'occurrence 120 dents dans l'exemple de réalisation donné dans ce document. L'anneau ressort s'étend dans un plan dans lequel il est susceptible de se déformer élastiquement selon un rayon, et coopère élastiquement avec l'anneau denté. Pour ce faire, trois ergots en forme de bras élastiques et destinés à coopérer avec les dents de l'anneau denté sont ménagés dans un pourtour intérieur de l'anneau ressort, par découpage de ce dernier. Les trois ergots sont répartis de manière régulière sur le pourtour intérieur de l'anneau ressort. De ce fait, quelle que soit la position de la lunette, les trois ergots sont toujours en prise avec la denture de l'anneau denté en même temps, ce qui conduit à 120 positions stables pour la lunette tournante. Le nombre de positions correspond donc au nombre de dents. La résolution de l'indexation de la position de la lunette tournante est donc limitée par le nombre de positions possibles au total pour cette dernière, en l'occurrence 120 positions. Or, plus le nombre de dents est grand pour un diamètre donné, plus la dimension des dents est réduite, ce qui implique un facteur d'usure élevé pour ces dernières. Il est donc souhaitable de trouver une solution technique permettant d'assurer, pour un diamètre de lunette donné, un nombre de positions stables plus élevé que le nombre de dents dans la denture de l'anneau, et ce sans augmenter l'usure de la denture de l'anneau.Known annular rotating bezel systems include a rotating bezel, a toothed ring, and a spring ring. Such a rotating bezel system is for example described in the patent document EP 2 672 333 A1 . The spring ring is angularly integral with the rotating bezel, and the toothed ring is angularly integral with the middle part. The toothed ring has several teeth regularly distributed over its outer periphery, in this case 120 teeth in the exemplary embodiment given in this document. The spring ring extends in a plane in which it is capable of deforming elastically along a radius, and cooperates elastically with the toothed ring. To do this, three lugs in the form of elastic arms and intended to cooperate with the teeth of the toothed ring are provided in an inner periphery of the spring ring, by cutting the latter. The three lugs are evenly distributed around the inner periphery of the spring ring. Therefore, whatever the position of the telescope, the three pins are always in engagement with the teeth of the toothed ring in same time, which leads to 120 stable positions for the rotating bezel. The number of positions therefore corresponds to the number of teeth. The resolution of the indexing of the position of the rotating bezel is therefore limited by the number of possible positions in total for the latter, in this case 120 positions. Now, the greater the number of teeth for a given diameter, the smaller the dimension of the teeth, which implies a high wear factor for the latter. It is therefore desirable to find a technical solution making it possible to ensure, for a given bezel diameter, a number of stable positions greater than the number of teeth in the toothing of the ring, and this without increasing the wear of the ring. toothing of the ring.

RÉSUMÉ DE L'INVENTIONSUMMARY OF THE INVENTION

L'invention a donc pour but de fournir un système de lunette tournante annulaire permettant, à nombre de dents égal pour l'anneau denté par rapport aux systèmes de l'art antérieur, d'obtenir un plus grand nombre de positions stables possibles pour la lunette tournante, et palliant les inconvénients susmentionnés de l'état de la technique.The object of the invention is therefore to provide an annular rotating bezel system making it possible, with an equal number of teeth for the toothed ring compared to the systems of the prior art, to obtain a greater number of stable positions possible for the rotating bezel, and overcoming the aforementioned drawbacks of the state of the art.

A cet effet, l'invention concerne un système de lunette tournante annulaire qui comprend les caractéristiques mentionnées dans la revendication indépendante 1.To this end, the invention relates to an annular rotating bezel system which comprises the features mentioned in independent claim 1.

Des formes particulières du système sont définies dans les revendications dépendantes 2 à 16.Particular forms of the system are defined in dependent claims 2 to 16.

Un avantage de la présente invention est de permettre, à nombre de dents égal pour l'anneau denté par rapport aux systèmes de l'art antérieur, d'obtenir un plus grand nombre de positions stables possibles pour la lunette tournante. En effet, grâce à la configuration selon laquelle le ou chaque angle de décalage entre deux ergots successifs présente une valeur distincte d'un sous-multiple entier de 360 degrés, un seul ergot est élastiquement et radialement en prise avec la denture de l'anneau denté dans chaque position de la lunette. Le nombre de positions possibles au total pour la lunette est alors donné par le résultat de la multiplication entre le nombre d'ergots sur l'anneau ressort, et le nombre de dents sur l'anneau denté. Ceci permet d'obtenir un plus grand nombre de positions stables possibles pour la lunette tournante.An advantage of the present invention is to allow, with an equal number of teeth for the toothed ring compared to the systems of the prior art, to obtain a greater number of possible stable positions for the rotating bezel. Indeed, thanks to the configuration according to which the or each angle of offset between two successive lugs has a value distinct from an integer submultiple of 360 degrees, a single lug is elastically and radially in engagement with the toothing of the ring. toothed in each position of the bezel. Number of The total possible positions for the bezel is then given by the result of the multiplication between the number of lugs on the spring ring, and the number of teeth on the toothed ring. This makes it possible to obtain a greater number of possible stable positions for the rotating bezel.

Inversement, il est possible par exemple, grâce au système selon l'invention, d'augmenter la taille des dents et de réduire leur nombre sur l'anneau denté, en vue de diminuer leur usure, et ceci tout en conservant un nombre de positions stables pour la lunette identique à celui des systèmes de l'art antérieur.Conversely, it is possible for example, thanks to the system according to the invention, to increase the size of the teeth and to reduce their number on the toothed ring, with a view to reducing their wear, and this while maintaining a number of positions. stable for the telescope identical to that of the systems of the prior art.

Avantageusement, l'anneau ressort comprend au moins deux portions amincies agencées pour augmenter la flexibilité de l'anneau ressort dans son plan, chaque ergot s'étendant à partir d'une des portions amincies. Ceci permet d'augmenter la flexibilité de l'anneau ressort dans son plan. En effet, grâce aux portions amincies qu'il présente, l'anneau ressort travaille en flexion dans son plan, permettant aux ergots qu'il porte de s'engrener et de se dégrener de l'anneau denté selon la rotation de la lunette. Ceci permet de réduire la largeur nécessaire au fonctionnement de l'anneau ressort dans le système, et donc d'obtenir un gain en encombrement en largeur de l'ensemble.Advantageously, the spring ring comprises at least two thinned portions arranged to increase the flexibility of the spring ring in its plane, each lug extending from one of the thinned portions. This makes it possible to increase the flexibility of the spring ring in its plane. In fact, thanks to the thinned portions that it presents, the spring ring works in bending in its plane, allowing the lugs that it carries to engage and disengage from the toothed ring according to the rotation of the bezel. This makes it possible to reduce the width necessary for the operation of the spring ring in the system, and therefore to obtain a saving in overall width of the assembly.

Avantageusement, la lunette tournante comprend au moins un bourrelet s'étendant sur une face latérale interne de la lunette, et l'anneau ressort présente, sur un pourtour extérieur, au moins une échancrure dans laquelle le bourrelet de la lunette est engagé. Ceci permet de lier facilement en rotation l'anneau ressort à la lunette tournante, tout en facilitant le positionnement de l'anneau ressort dans la lunette.Advantageously, the rotating bezel comprises at least one bead extending over an internal lateral face of the bezel, and the spring ring has, on an outer periphery, at least one notch in which the bead of the bezel is engaged. This makes it possible to easily link the spring ring in rotation to the rotating bezel, while facilitating the positioning of the spring ring in the bezel.

Avantageusement, l'anneau denté présente, sur un pourtour intérieur, au moins un bourrelet destiné à être reçu dans une échancrure prévue dans une surface extérieure cylindrique de la carrure. Ceci permet une solidarisation angulaire aisée de l'anneau denté à la carrure, tout en facilitant le positionnement de l'anneau denté sur la carrure et en permettant de guider le système de lunette tournante pour son montage sur la carrure.Advantageously, the toothed ring has, on an inner periphery, at least one bead intended to be received in a notch provided in a cylindrical outer surface of the middle part. This allows easy angular attachment of the toothed ring to the middle part, while facilitating the positioning of the toothed ring on the middle part and in for guiding the rotating bezel system for its mounting on the caseband.

Selon un premier exemple de réalisation de l'invention, les dents de l'anneau denté et les ergots de l'anneau ressort présentent chacun(e) une forme asymétrique dans le plan défini par l'anneau ressort. Dans ce premier exemple de réalisation, l'anneau ressort peut tourner par rapport à l'anneau denté dans un seul sens prédéfini : horaire ou anti-horaire selon la forme choisie pour les dents. Ce premier exemple de réalisation de l'invention correspond donc à une lunette tournante unidirectionnelle.According to a first exemplary embodiment of the invention, the teeth of the toothed ring and the lugs of the spring ring each have an asymmetric shape in the plane defined by the spring ring. In this first exemplary embodiment, the spring ring can rotate relative to the toothed ring in only one predefined direction: clockwise or anti-clockwise depending on the shape chosen for the teeth. This first exemplary embodiment of the invention therefore corresponds to a unidirectional rotating bezel.

Selon un deuxième exemple de réalisation de l'invention, les dents de l'anneau denté et les ergots de l'anneau ressort présentent chacun(e) une forme symétrique dans le plan défini par l'anneau ressort. Dans ce deuxième exemple de réalisation, l'anneau ressort peut tourner par rapport à l'anneau denté dans l'un ou l'autre des deux sens : horaire ou anti-horaire. Ce deuxième exemple de réalisation de l'invention correspond donc à une lunette tournante bidirectionnelle.According to a second exemplary embodiment of the invention, the teeth of the toothed ring and the lugs of the spring ring each have a symmetrical shape in the plane defined by the spring ring. In this second exemplary embodiment, the spring ring can rotate relative to the toothed ring in one or the other of the two directions: clockwise or anti-clockwise. This second exemplary embodiment of the invention therefore corresponds to a bidirectional rotating bezel.

Avantageusement, le système de lunette tournante annulaire est formé d'un module indépendant, ledit module étant configuré pour être clippé sur la carrure. Ceci permet d'obtenir un montage simple et pratique du système de lunette tournante sur la carrure, permettant également un démontage aisé. Ceci permet de simplifier le procédé de fabrication de la boîte de montre. Le système de montage par clippage utilisé forme un système de crochement libre.Advantageously, the annular rotating bezel system is formed of an independent module, said module being configured to be clipped onto the middle part. This makes it possible to obtain a simple and practical assembly of the rotating bezel system on the caseband, also allowing easy disassembly. This makes it possible to simplify the manufacturing process of the watch case. The clip-on mounting system used forms a free hooking system.

A cet effet, l'invention concerne également une boîte de montre comprenant le système de lunette tournante annulaire décrit ci-dessus, et qui comprend les caractéristiques mentionnées dans la revendication dépendante 17.To this end, the invention also relates to a watch case comprising the annular rotating bezel system described above, and which comprises the characteristics mentioned in dependent claim 17.

Une forme particulière de la boîte de montre est définie dans la revendication dépendante 18.A particular shape of the watch case is defined in dependent claim 18.

A cet effet, l'invention concerne également une montre comportant la boîte de montre décrite ci-dessus, et qui comprend les caractéristiques mentionnées dans la revendication dépendante 19.To this end, the invention also relates to a watch comprising the watch case described above, and which comprises the characteristics mentioned in dependent claim 19.

BRÈVE DESCRIPTION DES FIGURESBRIEF DESCRIPTION OF THE FIGURES

Les buts, avantages et caractéristiques du système de lunette tournante annulaire selon l'invention apparaîtront mieux dans la description suivante sur la base d'au moins une forme d'exécution non limitative illustrée par les dessins sur lesquels :

  • la figure 1 est une vue en perspective éclatée du système de lunette tournante annulaire selon l'invention, comprenant un anneau ressort et un anneau denté ;
  • les figures 2 à 5 sont des vues de dessus du système de lunette tournante annulaire de la figure 1, selon un premier mode de réalisation de l'invention, et dans différentes positions de la lunette ; et
  • les figures 6 à 9 sont des vues de dessus du système de lunette tournante annulaire de la figure 1, selon un deuxième mode de réalisation de l'invention, et dans différentes positions de la lunette.
The aims, advantages and characteristics of the annular rotating bezel system according to the invention will appear better in the following description on the basis of at least one non-limiting embodiment illustrated by the drawings in which:
  • the figure 1 is an exploded perspective view of the annular rotating bezel system according to the invention, comprising a spring ring and a toothed ring;
  • the figures 2 to 5 are top views of the annular rotating bezel system of the figure 1 , according to a first embodiment of the invention, and in different positions of the bezel; and
  • the figures 6 to 9 are top views of the annular rotating bezel system of the figure 1 , according to a second embodiment of the invention, and in different positions of the bezel.

DESCRIPTION DETAILLEE DE L'INVENTIONDETAILED DESCRIPTION OF THE INVENTION

La figure 1 représente une montre 1 munie d'une boîte de montre 2. La boîte de montre 2 comprend typiquement une carrure 4. La boîte de montre 2 comprend également un système de lunette tournante annulaire 6 ainsi qu'un mouvement horloger qui s'étend dans un plan, le mouvement horloger n'étant pas représenté sur les figures pour des raisons de clarté. Le système de lunette tournante annulaire 6 est monté à rotation sur la carrure 4. De préférence, comme illustré sur la figure 1, le système de lunette tournante annulaire 6 est formé d'un module indépendant. Le système de lunette tournante annulaire 6 est par exemple clippé sur la carrure 4.The figure 1 shows a watch 1 provided with a watch case 2. The watch case 2 typically comprises a middle part 4. The watch case 2 also comprises an annular rotating bezel system 6 as well as a watch movement which extends in a plan, the watch movement not being shown in the figures for reasons of clarity. The annular rotating bezel system 6 is rotatably mounted on the middle part 4. Preferably, as illustrated in the figure. figure 1 , the annular rotating bezel system 6 is formed from an independent module. The annular rotating bezel system 6 is for example clipped onto the middle part 4.

Comme illustré sur la figure 1, la carrure 4 est de forme annulaire. La carrure 4 comprend une surface extérieure cylindrique 8. La surface extérieure cylindrique 8 est par exemple munie d'un épaulement périphérique défini par une paroi latérale 12a et une base 12b. Cet épaulement périphérique sert de logement pour le système de lunette tournante 6. La paroi latérale 12a comprend une excroissance ou bourrelet annulaire 13 s'étendant sur l'intégralité du périmètre de la paroi latérale 12a et permettant le crochement du système de lunette tournante 6 sur la carrure 4, par clippage. Le système de lunette tournante annulaire 6 s'appuie sur la base 12b. Le système de lunette tournante 6 est ainsi monté sur la carrure 4, depuis le dessus de cette dernière, permettant un blocage du système 6 selon une direction axiale perpendiculaire au plan du mouvement horloger, tout en autorisant une rotation de la lunette autour de la carrure 4. Dans la boîte de montre 2 prise en exemple aux figures 1 à 9, la configuration de la boîte de montre est sensiblement circulaire. Toutefois, l'invention n'est nullement limitée à une telle configuration de la boîte de montre, ni aux autres dispositions décrites ci-dessus pour la carrure 4. La carrure peut être réalisée en métal, typiquement en acier, en titane, en or, en platine ou en céramique typiquement à base d'alumine, de zircone ou de nitrure de silicium.As shown on the figure 1 , the caseband 4 is annular in shape. The middle part 4 comprises a cylindrical outer surface 8. The cylindrical outer surface 8 is for example provided with a peripheral shoulder defined by a side wall 12a and a base 12b. This peripheral shoulder serves as a housing for the rotating bezel system 6. The side wall 12a comprises an annular protuberance or bead 13 extending over the entire perimeter of the side wall 12a and allowing the rotating bezel system 6 to be hooked on. caseband 4, by clipping. The annular rotating bezel system 6 rests on the base 12b. The rotating bezel system 6 is thus mounted on the middle part 4, from above the latter, allowing the system 6 to be blocked in an axial direction perpendicular to the plane of the watch movement, while allowing rotation of the bezel around the middle part. 4. In watch box 2 taken as an example in figures 1 to 9 , the configuration of the watch case is substantially circular. However, the invention is in no way limited to such a configuration of the watch case, nor to the other arrangements described above for the middle part 4. The middle part can be made of metal, typically steel, titanium, gold. , in platinum or in ceramic typically based on alumina, zirconia or silicon nitride.

Le système de lunette tournante annulaire 6 comprend une lunette tournante 14, un anneau denté 18 et un anneau ressort 20. De préférence, le système 6 comprend en outre une bague annulaire de maintien 16. De préférence encore, le système 6 comprend également un anneau de décor 22 engagé à force sur la lunette tournante 14. L'anneau de décor 22 porte par exemple des graduations, typiquement des graduations de plongée dans le cas d'une montre 1 de plongée. L'anneau de décor 22 est par exemple en céramique.The annular rotating bezel system 6 comprises a rotating bezel 14, a toothed ring 18 and a spring ring 20. Preferably, the system 6 further comprises an annular retaining ring 16. More preferably, the system 6 also comprises a ring. decoration 22 forcibly engaged on the rotating bezel 14. The decoration ring 22 carries for example graduations, typically diving graduations in the case of a diving watch 1. The decorative ring 22 is for example made of ceramic.

La lunette tournante 14 est de forme annulaire et comprend une face supérieure 23a visible par l'utilisateur et une face inférieure 23b. Comme illustré sur la figure 1, la lunette tournante 14 est par exemple munie sur un pourtour intérieur d'un rebord annulaire 24. Le rebord annulaire 24 coopère par clippage avec l'excroissance 13 de la carrure 4, et forme avec cette dernière un système de crochement libre. La lunette tournante 14 est par exemple en métal mais pourrait être réalisée en tout autre matériau par exemple en céramique.The rotating bezel 14 is annular in shape and comprises an upper face 23a visible to the user and a lower face 23b. As shown on the figure 1 , the rotating bezel 14 is for example provided on an inner periphery with an annular rim 24. The rim annular 24 cooperates by clipping with the protuberance 13 of the middle part 4, and forms with the latter a free hooking system. The rotating bezel 14 is for example made of metal but could be made of any other material, for example ceramic.

La bague annulaire 16 maintient l'anneau denté 18 et l'anneau ressort 20 dans la lunette 14, selon une direction axiale perpendiculaire au plan du mouvement horloger. Ceci permet de faciliter le montage de la lunette tournante 14 sur la carrure 4. De préférence, la bague annulaire 16 est chassée dans la lunette tournante 14, la solidarisant à cette dernière. Dans une variante de réalisation non représentée sur les figures, la bague annulaire 16 est solidarisée à la carrure 4.The annular ring 16 maintains the toothed ring 18 and the spring ring 20 in the bezel 14, in an axial direction perpendicular to the plane of the watch movement. This makes it possible to facilitate the mounting of the rotating bezel 14 on the middle part 4. Preferably, the annular ring 16 is driven into the rotating bezel 14, securing it to the latter. In an alternative embodiment not shown in the figures, the annular ring 16 is secured to the middle part 4.

La bague annulaire 16 repose sur la base 12b de la carrure 4, et entoure ainsi la surface extérieure cylindrique 8 de la carrure 4. La bague annulaire 16 est configurée pour coopérer avec la surface extérieure cylindrique 8 pour permettre la rotation de la lunette tournante 14 sur la carrure 4. La bague annulaire de maintien 16 est par exemple une bague plate. Selon d'autres variantes de réalisation de l'invention la bague annulaire de maintien peut comprendre une simple bague annulaire de section rectangulaire sur tout son pourtour chassée dans la lunette 14.The annular ring 16 rests on the base 12b of the middle part 4, and thus surrounds the cylindrical outer surface 8 of the middle part 4. The annular ring 16 is configured to cooperate with the cylindrical outer surface 8 to allow the rotation of the rotating bezel 14 on the middle part 4. The annular retaining ring 16 is for example a flat ring. According to other variant embodiments of the invention, the annular retaining ring may comprise a simple annular ring of rectangular section over its entire periphery driven into the bezel 14.

L'anneau denté 18 comprend une denture 26. La denture 26 est munie de plusieurs dents régulièrement réparties sur un pourtour de l'anneau denté 18, typiquement sur un pourtour extérieur, sur 360 degrés. De préférence, l'anneau denté 18 présente en outre, sur son pourtour intérieur, au moins un bourrelet 34 reçu dans une échancrure 36 prévue dans la surface extérieure cylindrique 8 de la carrure 4. Dans les exemples de réalisation illustrés sur les figures 1 à 9, l'anneau denté 18 comprend trois bourrelets 34 répartis sur 360 degrés et espacés deux à deux de 120 degrés. La surface extérieure cylindrique 8 de la carrure 4 comprend trois échancrures 36 correspondantes. Ce système bourrelets 34 / échancrures 36 permet une solidarisation angulaire aisée de l'anneau denté 18 à la carrure 4, tout en facilitant le positionnement de l'anneau denté 18 sur la carrure 4. Ce système permet également de guider le système de lunette tournante 6 pour son montage sur la carrure 4. Ainsi, en pressant depuis le dessus du système 6, on engage les bourrelets 34 dans les échancrures 36, permettant d'encliqueter les éléments à l'intérieur du système 6 et de clipper le système 6 sur la carrure 4.The toothed ring 18 comprises a set of teeth 26. The set of teeth 26 is provided with several teeth regularly distributed over one periphery of the toothed ring 18, typically on an outer periphery, over 360 degrees. Preferably, the toothed ring 18 also has, on its inner periphery, at least one bead 34 received in a notch 36 provided in the cylindrical outer surface 8 of the middle part 4. In the embodiments illustrated on the figures. figures 1 to 9 , the toothed ring 18 comprises three beads 34 distributed over 360 degrees and spaced two by two by 120 degrees. The cylindrical outer surface 8 of the middle part 4 comprises three corresponding notches 36. This system of beads 34 / notches 36 allows easy angular attachment of the toothed ring 18 to the middle part 4, while facilitating the positioning of the toothed ring 18 on the middle part 4. This system also makes it possible to guide the rotating bezel system 6 for its mounting on the caseband 4. Thus, by pressing from above the system 6, the beads 34 are engaged in the notches 36, making it possible to snap the elements inside the system 6 and to clip the system 6 onto the caseband 4.

L'anneau denté 18 est formé d'une seule pièce de matière. L'anneau denté 18 est par exemple constitué d'un alliage métallique, notamment un alliage à base de cobalt (40%Co, 20%Cr, 16%Ni et. 7%Mo) dénommé commercialement phynox ou de l'acier typiquement un acier inoxydable par exemple 316L. En variante, l'anneau denté 18 peut être constitué d'un matériau thermoplastique, notamment un matériau thermoplastique semi-cristallin thermostable tel que par exemple du polyarylamide (Ixef®), du polyétheréthercétone (PEEK) ou encore en un matériau céramique comme de la zircone ou de l'alumine.The toothed ring 18 is formed from a single piece of material. The toothed ring 18 is for example made of a metal alloy, in particular a cobalt-based alloy (40% Co, 20% Cr, 16% Ni and. 7% Mo) commercially known as phynox or of steel typically a stainless steel for example 316L. As a variant, the toothed ring 18 may be made of a thermoplastic material, in particular a thermostable semi-crystalline thermoplastic material such as, for example, polyarylamide (Ixef®), polyetheretherketone (PEEK) or even a ceramic material such as zirconia or alumina.

Comme visible aux figures 2 à 9, l'anneau denté 18 est agencé pour s'insérer dans l'anneau ressort 20, c'est-à-dire que l'anneau denté 18 est dimensionné pour pouvoir être placé dans l'anneau ressort 20. L'anneau denté 18 et l'anneau ressort 20 sont concentriques et coplanaires, et sont maintenus entre la face inférieure 23b de la lunette 14 et une face supérieure de la bague de maintien 16.As visible to figures 2 to 9 , the toothed ring 18 is arranged to fit into the spring ring 20, that is to say that the toothed ring 18 is dimensioned to be able to be placed in the spring ring 20. The toothed ring 18 and the spring ring 20 are concentric and coplanar, and are held between the lower face 23b of the bezel 14 and an upper face of the retaining ring 16.

L'anneau ressort 20 s'étend dans un plan dans lequel il est susceptible de se déformer élastiquement selon un rayon. L'anneau ressort 20 coopère élastiquement avec l'anneau denté 18. Pour ce faire, l'anneau ressort 20 comprend au moins deux ergots 40, chaque ergot 40 étant configuré pour être élastiquement et radialement en prise avec la denture 26 de l'anneau denté 18 dans au moins une position de la lunette 14. Dans les exemples de réalisation illustrés sur les figures 1 à 9, l'anneau ressort 20 comprend trois ergots 40. Les ergots 40 sont décalés entre eux d'un angle de décalage ϑa, ϑb, ϑc. Chaque angle de décalage ϑa, ϑb, ϑc entre deux ergots successifs 40 présente une valeur distincte d'un sous-multiple entier de 360 degrés, comme cela sera détaillé par la suite. De cette manière, dans chaque position de la lunette tournante 14, un seul ergot 40 est élastiquement et radialement en prise avec la denture 26 de l'anneau denté 18. Ainsi, dans chaque position de la lunette 14, lorsqu'un des ergots 40 est élastiquement et radialement en prise avec la denture 26, le ou les ergot(s) restant(s) 40 sont en équilibre sur des dents de l'anneau denté 18. Autrement dit, ce ou ces dernier(s) ergot(s) 40 ne sont alors pas en prise avec la denture 26. Dans cette configuration, dans chaque position de la lunette 14, un et un seul ergot 40 est en contact avec l'anneau denté 18 de sorte qu'il existe une position de repos dans laquelle cet ergot 40 se trouve dans un creux entre deux dents de l'anneau denté 18. Les autres ergots 40 se trouvent alors en équilibre sur des dents de l'anneau denté 18, comme cela sera décrit par la suite. Quand l'utilisateur se saisit de la lunette 14 et la tourne, du fait de la flexibilité de l'anneau ressort 20, l'anneau ressort 20 se déforme élastiquement dans son plan, permettant au premier ergot 40 de se dégager des creux de l'anneau denté 18 et de se mettre en équilibre sur des dents adjacentes. Un autre ergot 40, différent du premier ergot, vient alors se ré-engrener dans la denture 26 de l'anneau denté 18. La lunette 14 tourne alors effectivement d'un secteur angulaire correspondant, vers une nouvelle position.The spring ring 20 extends in a plane in which it is capable of deforming elastically along a radius. The spring ring 20 cooperates elastically with the toothed ring 18. To do this, the spring ring 20 comprises at least two lugs 40, each lug 40 being configured to be elastically and radially in engagement with the teeth 26 of the ring. toothed 18 in at least one position of the bezel 14. In the embodiments illustrated on the figures 1 to 9 , the spring ring 20 comprises three lugs 40. The lugs 40 are offset from one another by an offset angle ϑ a , ϑ b , ϑ c . Each offset angle ϑ a , ϑ b , ϑ c between two successive lugs 40 has a distinct value of an integer submultiple of 360 degrees, as will be detailed below. In this way, in each position of the rotating bezel 14, a single lug 40 is elastically and radially in engagement with the teeth 26 of the toothed ring 18. Thus, in each position of the bezel 14, when one of the lugs 40 is elastically and radially in engagement with the teeth 26, the or the remaining lug (s) 40 are in equilibrium on the teeth of the toothed ring 18. In other words, this or these latter lug (s) 40 are then not in engagement with the toothing 26. In this configuration, in each position of the bezel 14, one and only one lug 40 is in contact with the toothed ring 18 so that there is a rest position in which this lug 40 is located in a hollow between two teeth of the toothed ring 18. The other lugs 40 are then in equilibrium on the teeth of the toothed ring 18, as will be described below. When the user grasps the bezel 14 and turns it, due to the flexibility of the spring ring 20, the spring ring 20 deforms elastically in its plane, allowing the first lug 40 to emerge from the hollows of the toothed ring 18 and balance on adjacent teeth. Another lug 40, different from the first lug, then re-engages with the teeth 26 of the toothed ring 18. The bezel 14 then effectively rotates by a corresponding angular sector, to a new position.

De préférence, l'anneau ressort 20 comprend au moins deux portions amincies 38. Chaque ergot 40 s'étend à partir d'une des portions amincies 38. Dans les exemples de réalisation illustrés sur les figures 1 à 9, l'anneau ressort 20 comprend trois portions amincies 38 réparties sur 360 degrés, chaque portion amincie 38 présentant un ergot 40 agencé dans une partie médiane de la portion amincie 38. Les trois portions amincies 38 sont espacées deux à deux de 120 degrés. Les portions amincies 38 sont agencées pour augmenter la flexibilité de l'anneau ressort 20 dans son plan. Cette configuration permet, lorsque l'anneau denté 18 est inséré à l'intérieur de l'anneau ressort 20, qu'un des ergots 40 coopère avec la denture 26 de l'anneau denté 18.Preferably, the spring ring 20 comprises at least two thinned portions 38. Each lug 40 extends from one of the thinned portions 38. In the embodiments illustrated in the figures. figures 1 to 9 , the spring ring 20 comprises three thinned portions 38 distributed over 360 degrees, each thinned portion 38 having a lug 40 arranged in a middle part of the thinned portion 38. The three thinned portions 38 are spaced two by two by 120 degrees. The thinned portions 38 are arranged to increase the flexibility of the spring ring 20 in its plane. This configuration allows, when the toothed ring 18 is inserted inside the spring ring 20, that one of the lugs 40 cooperates with the toothing 26 of the toothed ring 18.

De préférence, comme illustré sur les figures 1 à 9, les portions amincies 38 sont amincies radialement.Preferably, as shown in the figures 1 to 9 , the thinned portions 38 are radially thinned.

De préférence encore, l'anneau ressort 20 présente sur son pourtour extérieur, au moins une échancrure 42 dans laquelle un bourrelet de la lunette 14 est engagé pour lier ces deux éléments en rotation. Dans les exemples de réalisation illustrés sur les figures 1 à 9, l'anneau ressort 20 comprend trois échancrures 42 réparties sur 360 degrés et espacées deux à deux de 120 degrés, et la lunette tournante 14 comprend sur une face latérale interne trois bourrelets correspondants. Les échancrures 42 sont ménagées dans des portions 46 de l'anneau ressort 20 plus épaisses que les portions amincies 38, dans des parties médianes de ces portions 46. Ainsi, les ergots 40 et les échancrures 42 forment une alternance sur l'anneau ressort 20. Ce système bourrelets / échancrures permet de lier facilement en rotation l'anneau ressort 20 à la lunette tournante 14, tout en facilitant le positionnement de l'anneau ressort 20 dans la lunette 14.More preferably, the spring ring 20 has on its outer periphery at least one notch 42 in which a bead of the bezel 14 is engaged to link these two elements in rotation. In the embodiments illustrated on the figures 1 to 9 , the spring ring 20 comprises three notches 42 distributed over 360 degrees and spaced two by two by 120 degrees, and the rotating bezel 14 comprises on an internal lateral face three corresponding beads. The notches 42 are formed in portions 46 of the spring ring 20 which are thicker than the thinned portions 38, in the middle parts of these portions 46. Thus, the lugs 40 and the notches 42 form an alternation on the spring ring 20. This bead / notch system makes it possible to easily link the spring ring 20 in rotation to the rotating bezel 14, while facilitating the positioning of the spring ring 20 in the bezel 14.

L'anneau ressort 20 est formé d'une seule pièce de matière. L'anneau ressort 20 est par exemple constitué d'un alliage métallique ayant de bonnes propriétés ressort c'est-à-dire qui se déforme facilement de manière élastique tout en pouvant se déformer de manière importante sans subir de déformation plastique, notamment du phynox® ou encore d'alliages métalliques amorphes. Bien entendu, l'anneau ressort 20 peut aussi, en variante, être réalisé dans un matériau synthétique.The spring ring 20 is formed from a single piece of material. The spring ring 20 is for example made of a metal alloy having good spring properties, that is to say which easily deforms elastically while being able to deform significantly without undergoing plastic deformation, in particular phynox. ® or amorphous metal alloys. Of course, the spring ring 20 can also, as a variant, be made of a synthetic material.

Selon un premier exemple de réalisation, les dents de l'anneau denté 18 et les ergots 40 de l'anneau ressort 20 présentent une forme asymétrique dans le plan défini par l'anneau ressort 20. La forme asymétrique est par exemple une forme dite « dent de loup », c'est-à-dire que les dents et les ergots présentent sensiblement une forme de triangle rectangle. En position d'engrainement d'un ergot 40, l'hypoténuse du triangle formé par cet ergot 40 de l'anneau ressort s'étend le long de l'hypoténuse du triangle formé par une des dents de l'anneau denté 18. Dans cet exemple de réalisation, l'anneau ressort 20 peut tourner par rapport à l'anneau denté 18 dans un seul sens prédéfini : horaire ou anti-horaire selon la forme choisie pour les dents et les ergots. Ce premier exemple de réalisation de l'invention correspond donc à une lunette tournante 14 unidirectionnelle.According to a first exemplary embodiment, the teeth of the toothed ring 18 and the lugs 40 of the spring ring 20 have an asymmetric shape in the plane defined by the spring ring 20. The asymmetric shape is for example a so-called "shape". wolf's tooth ”, that is to say that the teeth and the lugs have substantially the shape of a right triangle. In the training position of a pin 40, the hypotenuse of the triangle formed by this pin 40 of the spring ring extends along the hypotenuse of the triangle formed by one of the teeth of the toothed ring 18. In this exemplary embodiment, the spring ring 20 can rotate relative to the toothed ring 18 in a single predefined direction: clockwise or anti-clockwise depending on the shape chosen for the teeth and lugs. This first exemplary embodiment of the invention therefore corresponds to a unidirectional rotating bezel 14.

Selon un deuxième exemple de réalisation, les dents de l'anneau denté 18 et les ergots 40 de l'anneau ressort 20 présentent une forme symétrique dans le plan défini par l'anneau ressort 20. La forme symétrique est par exemple une forme de triangle isocèle ou de triangle équilatéral. Dans cet exemple de réalisation, l'anneau ressort 20 peut tourner par rapport à l'anneau denté 18 dans l'un ou l'autre des deux sens : horaire ou anti-horaire. Ce deuxième exemple de réalisation de l'invention correspond donc à une lunette tournante 14 bidirectionnelle.According to a second embodiment, the teeth of the toothed ring 18 and the lugs 40 of the spring ring 20 have a symmetrical shape in the plane defined by the spring ring 20. The symmetrical shape is for example a triangle shape. isosceles or equilateral triangle. In this exemplary embodiment, the spring ring 20 can rotate relative to the toothed ring 18 in one or the other of the two directions: clockwise or anti-clockwise. This second exemplary embodiment of the invention therefore corresponds to a bidirectional rotating bezel 14.

Un premier mode de réalisation de l'invention va maintenant être décrit en référence aux figures 2 à 5. Selon ce premier mode de réalisation, l'anneau denté présente 120 dents régulièrement réparties sur son pourtour extérieur, et l'anneau ressort 20 comprend trois ergots 40a, 40b, 40c. Le nombre de positions possibles au total pour la lunette 14 étant donné par le résultat de la multiplication entre le nombre d'ergots 40a-40c sur l'anneau ressort 20, et le nombre de dents sur l'anneau denté 18, le système de lunette tournante annulaire 6 selon ce premier mode de réalisation présente 360 positions stables possibles. L'anneau ressort comprend un premier ergot 40a, un deuxième ergot 40b, et un troisième ergot 40c. Comme illustré sur la figure 2, les premier et deuxième ergots 40a, 40b sont décalés entre eux d'un angle de décalage ϑa, les deuxième et troisième ergots 40b, 40c sont décalés entre eux d'un angle de décalage ϑb, et les premier et troisième ergots 40a, 40c sont décalés entre eux d'un angle de décalage ϑc. La valeur de l'angle de décalage ϑa est de 121 degrés, la valeur de l'angle de décalage ϑb est de 121 degrés, et la valeur de l'angle de décalage ϑc est de 118 degrés. Ainsi, les trois ergots 40a-40c sont répartis sur un pourtour intérieur de l'anneau ressort 20 de sorte que l'espacement angulaire des ergots 40a-40c sur l'anneau ressort 20 est décalé de 1 degré par rapport à une répartition régulière symétrique. En outre, comme indiqué précédemment, chaque angle de décalage ϑa, ϑb, ϑc entre deux ergots successifs 40a, 40b, 40c présente une valeur distincte d'un sous-multiple entier de 360 degrés.A first embodiment of the invention will now be described with reference to figures 2 to 5 . According to this first embodiment, the toothed ring has 120 teeth regularly distributed over its outer periphery, and the spring ring 20 comprises three lugs 40a, 40b, 40c. The number of possible positions in total for the bezel 14 given by the result of the multiplication between the number of lugs 40a-40c on the spring ring 20, and the number of teeth on the toothed ring 18, the system of Annular rotating bezel 6 according to this first embodiment has 360 possible stable positions. The spring ring comprises a first lug 40a, a second lug 40b, and a third lug 40c. As shown on the figure 2 , the first and second lugs 40a, 40b are offset from each other by an offset angle ϑ a , the second and third lugs 40b, 40c are offset from each other by an offset angle ϑ b , and the first and third lugs 40a , 40c are offset from each other by an offset angle ϑ c . The value of the offset angle ϑ a is 121 degrees, the value of the offset angle ϑ b is 121 degrees, and the value of the offset angle ϑ c is 118 degrees. Thus, the three lugs 40a-40c are distributed over an inner periphery of the spring ring 20 so that the angular spacing of the lugs 40a-40c on the spring ring 20 is offset by 1 degree with respect to a symmetrical regular distribution. . In addition, as indicated previously, each angle of offset ϑ a , ϑ b , ϑ c between two lugs successive 40a, 40b, 40c has a value distinct from an integer submultiple of 360 degrees.

La figure 2 représente le système 6 dans une position de la lunette 14 « à 12 heures ». Dans cette position, seul le premier ergot 40a de l'anneau denté 20 est en prise avec la denture 26. Les deuxième et troisième ergots 40b, 40c sont en équilibre sur des dents de l'anneau denté 18. Quand l'utilisateur se saisit de la lunette 14 et la tourne de 1 degré dans le sens des aiguilles d'une montre, le système 6 adopte la configuration représentée à la figure 3. Dans cette configuration, seul le troisième ergot 40c de l'anneau denté 20 est en prise avec la denture 26. Les premier et deuxième ergots 40a, 40b sont en équilibre sur des dents de l'anneau denté 18. Quand l'utilisateur se saisit de la lunette 14 et la tourne de 1 degré dans le sens des aiguilles d'une montre, donc de 2 degrés par rapport à la position « 12 heures », le système 6 adopte la configuration représentée à la figure 4. Dans cette configuration, seul le deuxième ergot 40b de l'anneau denté 20 est en prise avec la denture 26. Les premier et troisième ergots 40a, 40c sont en équilibre sur des dents de l'anneau denté 18. Quand l'utilisateur se saisit de la lunette 14 et la tourne de 1 degré dans le sens des aiguilles d'une montre, donc de 3 degrés par rapport à la position « 12 heures », le système 6 adopte la configuration représentée à la figure 5. Dans cette configuration, le premier ergot 40a de l'anneau denté 20 est de nouveau seul en prise avec la denture 26. Les deuxième et troisième ergots 40b, 40c sont en équilibre sur des dents de l'anneau denté 18.The figure 2 represents the system 6 in a position of the bezel 14 “at 12 o'clock”. In this position, only the first lug 40a of the toothed ring 20 engages with the toothing 26. The second and third lugs 40b, 40c are balanced on the teeth of the toothed ring 18. When the user grasps bezel 14 and rotates it 1 degree clockwise, system 6 adopts the configuration shown in figure 3 . In this configuration, only the third lug 40c of the toothed ring 20 engages with the toothing 26. The first and second lugs 40a, 40b are balanced on the teeth of the toothed ring 18. When the user grasps of the bezel 14 and turns it 1 degree clockwise, therefore 2 degrees relative to the "12 o'clock" position, the system 6 adopts the configuration shown in figure 4 . In this configuration, only the second lug 40b of the toothed ring 20 engages with the toothing 26. The first and third lugs 40a, 40c are balanced on the teeth of the toothed ring 18. When the user grasps of the bezel 14 and turns it 1 degree clockwise, therefore 3 degrees relative to the "12 o'clock" position, the system 6 adopts the configuration shown on figure 5 . In this configuration, the first lug 40a of the toothed ring 20 is once again alone in engagement with the toothing 26. The second and third lugs 40b, 40c are balanced on the teeth of the toothed ring 18.

Un deuxième mode de réalisation de l'invention va maintenant être décrit en référence aux figures 6 à 9. Selon ce deuxième mode de réalisation, l'anneau denté présente 40 dents régulièrement réparties sur son pourtour extérieur, et l'anneau ressort 20 comprend trois ergots 40a, 40b, 40c. Le système de lunette tournante annulaire 6 selon ce deuxième mode de réalisation présente ainsi 120 positions stables possibles. L'anneau ressort comprend un premier ergot 40a, un deuxième ergot 40b, et un troisième ergot 40c. Comme illustré sur la figure 6, les premier et deuxième ergots 40a, 40b sont décalés entre eux d'un angle de décalage ϑa, les deuxième et troisième ergots 40b, 40c sont décalés entre eux d'un angle de décalage ϑb, et les premier et troisième ergots 40a, 40c sont décalés entre eux d'un angle de décalage ϑc.A second embodiment of the invention will now be described with reference to figures 6 to 9 . According to this second embodiment, the toothed ring has 40 teeth regularly distributed over its outer periphery, and the spring ring 20 comprises three lugs 40a, 40b, 40c. The annular rotating bezel system 6 according to this second embodiment thus has 120 possible stable positions. The spring ring comprises a first lug 40a, a second lug 40b, and a third lug 40c. As shown on the figure 6 , the first and second lugs 40a, 40b are offset from each other by an offset angle ϑ a , the second and third lugs 40b, 40c are offset from each other by an offset angle ϑ b , and the first and third lugs 40a, 40c are offset from each other by an offset angle ϑ c .

La figure 6 représente le système 6 dans une position de la lunette 14 « à 12 heures ». Dans cette position, seul le premier ergot 40a de l'anneau denté 20 est en prise avec la denture 26. Les deuxième et troisième ergots 40b, 40c sont en équilibre sur des dents de l'anneau denté 18. Quand l'utilisateur se saisit de la lunette 14 et la tourne de 3 degrés dans le sens des aiguilles d'une montre, le système 6 adopte la configuration représentée à la figure 7. Dans cette configuration, seul le troisième ergot 40c de l'anneau denté 20 est en prise avec la denture 26. Les premier et deuxième ergots 40a, 40b sont en équilibre sur des dents de l'anneau denté 18. Quand l'utilisateur se saisit de la lunette 14 et la tourne de 3 degrés dans le sens des aiguilles d'une montre, donc de 6 degrés par rapport à la position « 12 heures », le système 6 adopte la configuration représentée à la figure 8. Dans cette configuration, seul le deuxième ergot 40b de l'anneau denté 20 est en prise avec la denture 26. Les premier et troisième ergots 40a, 40c sont en équilibre sur des dents de l'anneau denté 18. Quand l'utilisateur se saisit de la lunette 14 et la tourne de 3 degrés dans le sens des aiguilles d'une montre, donc de 9 degrés par rapport à la position « 12 heures », le système 6 adopte la configuration représentée à la figure 9. Dans cette configuration, le premier ergot 40a de l'anneau denté 20 est de nouveau seul en prise avec la denture 26. Les deuxième et troisième ergots 40b, 40c sont en équilibre sur des dents de l'anneau denté 18.The figure 6 represents the system 6 in a position of the bezel 14 “at 12 o'clock”. In this position, only the first lug 40a of the toothed ring 20 engages with the toothing 26. The second and third lugs 40b, 40c are balanced on the teeth of the toothed ring 18. When the user grasps bezel 14 and rotates it 3 degrees clockwise, system 6 adopts the configuration shown in figure 7 . In this configuration, only the third lug 40c of the toothed ring 20 engages with the toothing 26. The first and second lugs 40a, 40b are balanced on the teeth of the toothed ring 18. When the user grasps of the bezel 14 and turns it by 3 degrees clockwise, therefore 6 degrees from the "12 o'clock" position, the system 6 adopts the configuration shown on figure 8 . In this configuration, only the second lug 40b of the toothed ring 20 engages with the toothing 26. The first and third lugs 40a, 40c are balanced on the teeth of the toothed ring 18. When the user grasps of the bezel 14 and turns it by 3 degrees clockwise, therefore 9 degrees from the "12 o'clock" position, the system 6 adopts the configuration shown on figure 9 . In this configuration, the first lug 40a of the toothed ring 20 is once again alone in engagement with the toothing 26. The second and third lugs 40b, 40c are balanced on the teeth of the toothed ring 18.

La description précédente du système de lunette tournante annulaire selon l'invention a été faite en référence à un anneau denté angulairement solidaire de la carrure, et à un anneau ressort angulairement solidaire de la lunette tournante. Toutefois, l'homme du métier comprendra que la configuration inverse est possible sans sortir du cadre de la présente invention, c'est-à-dire que l'anneau denté peut être angulairement solidaire de la lunette tournante, et l'anneau ressort angulairement solidaire de la carrure. En outre, bien que l'invention ait été décrite en référence à un anneau ressort muni de trois ergots, l'invention s'applique de la même manière pour des systèmes de lunette tournante munis d'anneaux ressort comprenant deux ergots, ou encore des anneaux ressort comprenant quatre ergots et plus.The preceding description of the annular rotating bezel system according to the invention has been made with reference to a toothed ring angularly integral with the middle part, and to a spring ring angularly integral with the rotating bezel. However, those skilled in the art will understand that the reverse configuration is possible without departing from the scope of the present invention, that is to say that the toothed ring can be angularly integral with the rotating bezel, and the ring spring angularly integral with the middle part. In addition, although the invention has been described with reference to a spring ring provided with three lugs, the invention applies in the same way for rotating bezel systems provided with spring rings comprising two lugs, or even spring rings comprising four lugs and more.

Claims (19)

  1. Annular rotating bezel system (6) intended to be rotatably mounted on a middle part (4) of a watch case (2) inside which is housed a timepiece movement which extends in a plane, including a rotating bezel (14), a toothed ring (18) having a toothing (26) provided with a plurality of teeth regularly distributed over an edge of the toothed ring (18), and a spring ring (20) which extends in a plane in which it is capable of deforming elastically along a radius, the spring ring (20) cooperating elastically with the toothed ring (18), said toothed ring (18) and said spring ring (20) being held in an axial direction perpendicular to the plane of the movement in the bezel (14), either the toothed ring (18) or the spring ring (20) being arranged to be angularly joined to the rotating bezel (14), and the other being arranged to be angularly joined to the case middle (4), the spring ring (20) including at least two lugs (40; 40a-40c), each lug (40; 40a-40c) being configured to be elastically and radially engaged with the toothing (26) of the toothed ring (18) in at least one position of the bezel (14);
    characterized in that said at least two lugs (40; 40a.40c) are offset from each other by an offset angle (ϑa, ϑb, ϑc), the or each offset angle (ϑa, ϑb, ϑc) between two successive lugs having a value different from an integer sub-multiple of 360 degrees, such that, in each position of the bezel (14), only one lug (40 40a-40c) is elastically and radially engaged with the toothing (26) of the toothed ring (18).
  2. Annular rotating bezel system (6) according to claim 1, characterized in that the system further includes an annular retaining ring (16), the toothed ring (18) and the spring ring (20) being held in the bezel (14) by the annular retaining ring (16).
  3. Annular rotating bezel system (6) according to claim 1 or 2, characterized in that the spring ring (20) includes three lugs (40; 40a, 40c).
  4. Annular rotating bezel system (6) according to claim 3, characterized in that the three lugs (40; 40a-40c) are distributed over an edge of the spring ring (20) such that the angular spacing of the lugs (40; 40a-40c) on the spring ring (20) is offset by 1 degree with respect to a regular symmetrical distribution.
  5. Annular rotating bezel system (6) according to any of the preceding claims, characterized in that said at least two lugs (40; 40a-40c) are configured such that, in each position of the bezel (14), when one of the lugs is elastically and radially engaged with the toothing (26) of the toothed ring (18) in said position of the bezel (14), the remaining lug or lugs are in equilibrium on teeth of the toothed ring (18).
  6. Annular rotating bezel system (6) according to any of the preceding claims, characterized in that the spring ring (20) includes at least two thinned portions (38) arranged to increase the flexibility of the spring ring (20) in its plane, each lug (40; 40a-40c) extending from one of the thinned portions (38).
  7. Annular rotating bezel system (6) according to claim 6, characterized in that each thinned portion (38) is radially thinned.
  8. Annular rotating bezel system (6) according to claim 6 or 7, characterized in that each lug (40; 40a-40c) is arranged in a median part of the corresponding thinned portion (38).
  9. Annular rotating bezel system (6) according to any of the preceding claims, characterized in that the rotating bezel (14) includes at least one protrusion extending over an inner lateral surface of the bezel (14), and in that the spring ring (20) has, on an outer edge, at least one hollow (42) in which the protrusion of the bezel (14) is engaged to allow a rotating connection between the spring ring (20) and the rotating bezel (14).
  10. Annular rotating bezel system (6) according to any of the preceding claims, characterized in that the toothed ring (18) has, on an inner edge, at least one protrusion (34) intended to be received in a hollow (36) provided in an external cylindrical surface (8) of the case middle (4), to allow angular joining of the toothed ring (18) to the case middle (4).
  11. Annular rotating bezel system (6) according to any of the preceding claims, characterized in that the spring ring (20) is formed of a single piece of material consisting of a crystalline or amorphous metal alloy.
  12. Annular rotating bezel system (6) according to any of the preceding claims, characterized in that the toothed ring (18) is formed of a single piece of material consisting of a metal alloy, especially phynox or steel.
  13. Annular rotating bezel system (6) according to any of claims 1 to 11, characterized in that the toothed ring (18) is formed of a single piece of material consisting of a thermostable semi-crystalline thermoplastic material, especially thermostable polyetheretherketone particularly polyarylamide, or of a ceramic material particularly made from zirconia or alumina.
  14. Annular rotating bezel system (6) according to any of the preceding claims, characterized in that the teeth of the toothed ring (18) and the lugs (40; 40a-40c) of the spring ring (20) each have an asymmetrical shape in the plane defined by the spring ring (20).
  15. Annular rotating bezel system (6) according to any of claims 1 to 13, characterized in that the teeth of the toothed ring (18) and the lugs (40; 40a-40c) of the spring ring (20) have a symmetrical shape in the plane defined by the spring ring (20).
  16. Annular rotating bezel system (6) according to any of the preceding claims, characterized in that said system (6) is formed of an independent module, said module being configured to be clipped onto the case middle (4).
  17. Watch case (2) comprising a case middle (4) and a system (6) provided with an annular rotating bezel (14) rotatably mounted on the case middle (4), characterized in that the annular rotating bezel system (6) conforms to any of the preceding claims.
  18. Watch case (2) according to claim 17, when the rotating bezel system (6) depends on claim 16, characterized in that the case middle (4) includes an external cylindrical surface (8) provided with a peripheral shoulder (12a, 12b)), the peripheral shoulder (12a, 12b) comprising, on a lateral face (12a), an annular protrusion (13), and in that the rotating bezel (14) is provided on an inner edge with an annular rim (24), said annular rim (24) cooperating by clipping together with said annular protrusion (13) and forming a free hooking system.
  19. Watch (1) comprising a watch case (2), characterized in that the watch case (2) conforms to claim 17 or 18.
EP18187998.2A 2018-08-08 2018-08-08 Annular rotating bezel system comprising a spring ring provided with at least two lugs Active EP3608730B1 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
EP18187998.2A EP3608730B1 (en) 2018-08-08 2018-08-08 Annular rotating bezel system comprising a spring ring provided with at least two lugs
US16/458,638 US11243496B2 (en) 2018-08-08 2019-07-01 Annular rotating bezel system comprising a spring ring provided with at least two lugs
JP2019128116A JP6749454B2 (en) 2018-08-08 2019-07-10 Annular rotating bezel system having a spring ring with at least two protrusions
CN201910720875.1A CN110824882B (en) 2018-08-08 2019-08-06 Ring-shaped rotary bezel system comprising a spring ring provided with at least two lugs

Applications Claiming Priority (1)

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EP18187998.2A EP3608730B1 (en) 2018-08-08 2018-08-08 Annular rotating bezel system comprising a spring ring provided with at least two lugs

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EP3608730A1 EP3608730A1 (en) 2020-02-12
EP3608730B1 true EP3608730B1 (en) 2021-05-05

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EP (1) EP3608730B1 (en)
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EP3800514B1 (en) * 2019-10-04 2024-01-17 Comadur S.A. Spring ring of a snap fitting of a rotating bezel
JP2022099298A (en) 2020-12-22 2022-07-04 ロレックス・ソシエテ・アノニム Spring for notching system and timepiece notching system
JP2022099297A (en) 2020-12-22 2022-07-04 ロレックス・ソシエテ・アノニム Spring for notching system and timepiece notching system
EP4202569A1 (en) * 2021-12-21 2023-06-28 Montres Breguet S.A. Watch case with rotating bezel

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CH683481B5 (en) 1992-05-01 1994-09-30 Ebauchesfabrik Eta Ag Timepiece including a rotating bezel.
CH686470B5 (en) * 1994-06-09 1996-10-15 Rolex Montres Box rotating bezel watch.
EP0770937B1 (en) 1995-10-27 2000-01-26 Eta SA Fabriques d'Ebauches Timepiece provided with a rotatable bezel
CH690140A5 (en) * 1996-03-05 2000-05-15 Smh Management Services Ag watch box with a rotating bezel.
IT1285147B1 (en) 1996-05-31 1998-06-03 Panerai Off Srl IMPROVEMENTS IN DIVER-TYPE WATCHES INCORPORATING A REMOVABLE UNI-DIRECTIONAL ROTATING BEZEL FIXING SYSTEM
EP1416341B1 (en) 2003-09-03 2006-05-17 Rolex S.A. Connection device between a bezel and a watch case
JP2010090526A (en) 2008-09-12 2010-04-22 Toray Ind Inc Microfine fiber and thermoplastic resin composition containing the same
EP2672333A1 (en) * 2012-06-06 2013-12-11 Omega SA Rotating bezel system
EP2874022B1 (en) 2013-11-15 2016-10-26 Chopard Technologies SA Watch case including a bayonet connection
JP6741397B2 (en) * 2014-02-10 2020-08-19 ロレックス・ソシエテ・アノニムＲｏｌｅｘ Ｓａ Mobile watch side and watch
CN104730903B (en) 2015-03-24 2017-05-24 惠州Tcl移动通信有限公司 Watchcase assembly and watch
CH712742A2 (en) * 2016-07-26 2018-01-31 Omega Sa Subset of clothing for a timepiece, in particular a watch, or for jewelery.

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CN110824882B (en) 2021-04-27
CN110824882A (en) 2020-02-21
EP3608730A1 (en) 2020-02-12
JP2020024192A (en) 2020-02-13
JP6749454B2 (en) 2020-09-02
US11243496B2 (en) 2022-02-08
US20200050153A1 (en) 2020-02-13

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