EP3800514A1 - Spring ring of a snap fitting of a rotating bezel - Google Patents

Spring ring of a snap fitting of a rotating bezel Download PDF

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Publication number
EP3800514A1
EP3800514A1 EP19201389.4A EP19201389A EP3800514A1 EP 3800514 A1 EP3800514 A1 EP 3800514A1 EP 19201389 A EP19201389 A EP 19201389A EP 3800514 A1 EP3800514 A1 EP 3800514A1
Authority
EP
European Patent Office
Prior art keywords
spring ring
rotating bezel
ring
watch case
plane
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP19201389.4A
Other languages
German (de)
French (fr)
Other versions
EP3800514B1 (en
Inventor
Emmanuel Jacquot
Laurent BOURCET
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.)
Comadur SA
Original Assignee
Comadur 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 Comadur SA filed Critical Comadur SA
Priority to EP19201389.4A priority Critical patent/EP3800514B1/en
Priority to JP2020152557A priority patent/JP7206240B2/en
Priority to US17/022,373 priority patent/US11789408B2/en
Priority to KR1020200125097A priority patent/KR102515197B1/en
Priority to CN202011048269.9A priority patent/CN112612197B/en
Publication of EP3800514A1 publication Critical patent/EP3800514A1/en
Application granted granted Critical
Publication of EP3800514B1 publication Critical patent/EP3800514B1/en
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Anticipated expiration legal-status Critical

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    • 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
    • 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
    • G04B37/00—Cases
    • G04B37/0008—Cases for pocket watches and wrist watches

Definitions

  • the invention relates to a snap ring spring for a rotating bezel.
  • the invention also relates to a rotating bezel system comprising the spring ring.
  • the invention also relates to a watch case comprising a ceramic middle part and the rotating bezel system rotatably mounted on the middle part.
  • the invention further relates to a watch comprising the watch case.
  • Known rotating bezel systems are provided with a spring ring intended to cooperate with the rotating bezel to allow the latter to snap into place. Such a snap-in then allows precise rotation of the rotating bezel on a watch case middle part, for example.
  • the middle part is ceramic
  • the latter generally has a cylindrical outer periphery provided with an annular groove intended to receive the spring ring.
  • radii caused by the machining of the middle part are present in the groove back.
  • the object of the invention is therefore to provide a spring ring for engaging a rotating bezel making it possible to guarantee correct positioning of the spring ring in the groove back of a ceramic watch case middle part, and to thus reducing the mechanical wear of the parts and therefore increasing the reliability and durability of the assembly.
  • the invention relates to a spring snap ring of a rotating bezel which comprises the features mentioned in independent claim 1.
  • the spring ring according to the invention also has the advantage of being easy to manufacture and to install within a watch case middle part, of being interchangeable with various currently existing parts, of being easily replaceable in after-sales service, as well as to improve the sensitive quality of the product as well as the user experience, in particular with regard to the sensation of precision of rotation of the rotating bezel.
  • the spring ring comprises three inclined lugs distributed over its inner periphery over 360 °, the three inclined lugs being spaced two by two by 120 °.
  • the spring ring further comprises at least one notching tongue intended to cooperate with a rotating bezel for the snapping of said bezel onto the spring ring.
  • the invention also relates to a rotating bezel system comprising the spring ring described above, and which comprises the features mentioned in dependent claim 7.
  • the rotating bezel is typically an annular rotating bezel, preferably a bezel. unidirectional.
  • the invention also relates to a watch case comprising a ceramic middle part and the rotating bezel system described above, and which comprises the characteristics mentioned in dependent claim 8.
  • the invention also relates to a watch comprising the watch case described above, and which comprises the characteristics mentioned in dependent claim 9.
  • the figure 1 shows a watch 1 provided with a watch case 2.
  • the watch case 2 typically comprises a ceramic middle part 4.
  • the watch case 2 also comprises a rotating bezel system 6 as well as a watch movement, the watch movement n 'not being shown in the figures for reasons of clarity.
  • the rotating bezel system 6 is rotatably mounted on the middle part 4.
  • the rotating bezel system 6 is formed from an independent module.
  • the caseband 4 is annular in shape.
  • the middle part 4 comprises a cylindrical outer surface 8 which delimits a part 10 of the middle part 4 called the chimney.
  • the middle part 4 is also provided, on its cylindrical outer periphery, with an annular groove 12.
  • the annular groove 12 is intended to receive the spring ring 14 according to the invention, as will be described below.
  • the rotating bezel system 6 comprises a rotating bezel and a spring ring 14 for engaging the rotating bezel.
  • the rotating bezel which is typically an annular rotating bezel, of preferably a unidirectional bezel, is not visible in the figures for reasons of clarity.
  • the rotating bezel is held by a flanged spring which moves apart during the passage of the bezel over the chimney of the middle part and then fits into the middle groove, and cooperates with the spring ring 14 by snap-fastening.
  • the spring ring 14 is received in the annular groove 12 and extends in a plane P1 illustrated on figure 2 , which plane P1 is substantially horizontal when the spring ring 14 is disposed in the groove 12.
  • the spring ring 14 comprises on its inner periphery at least one tab 16 inclined relative to the plane P1.
  • the spring ring 14 comprises three inclined tabs 16 distributed over its inner periphery over 360 ° and spaced two by two by 120 °.
  • the spring ring 14 further comprises at least one notching tongue 18 intended to cooperate with the rotating bezel for the snapping of the bezel onto the spring ring 14.
  • the spring ring 14 comprises three notching tabs 18 distributed over 360 ° and spaced two by two by 120 °.
  • the spring ring 14 is formed from a single piece of material.
  • the spring ring 14 is for example made of a material such as Phynox.
  • each inclined tab 16 cooperates with the cylindrical outer surface 8 of the middle part 4, so as to index the position of the spring ring 14 relative to the middle part 4.
  • the spring ring 14 is always correctly positioned at flat in the annular groove 12.
  • the spring ring 14 never comes into contact with the spoke 19 present at the bottom of the groove 12, which makes it possible to avoid problems of wear and of torque variation.
  • this spoke 19 has a width substantially equal to 0.2 mm.
  • each tab 16 extends towards the center 20 of the spring ring 14, and is inclined upwards with respect to the plane P1.
  • each tab 16 is inclined relative to the plane P1 by an angle substantially equal to 25 °.
  • each notching tab 18 is configured to cooperate either with the rotating bezel itself, or with a part attached to the bezel, so as to snap the bezel onto the spring ring 14.
  • each notching tongue 18 comprises for example a first portion 18a and a second portion 18b both extending upwardly relative to the plane P1.
  • the first portion 18a has for example an arcuate shape the curvature of which tends to move it away from the plane P1, the center of the osculating circle taken at any point of the first portion 18a being located opposite the plane P1 with respect to the tongue.
  • the second portion 18b is for example a flat portion, inclined relative to the plane P1.
  • each notching tongue 18 is inclined relative to the plane P1 by an angle substantially equal to 15 °.
  • each notching tongue 18 is formed via a preliminary cutout made in the thickness of the spring ring 14. The shape of the cutout is thus complementary to the shape of the corresponding tongue 18.

Abstract

L'invention concerne un anneau ressort d'encliquetage d'une lunette tournante, l'anneau ressort s'étendant dans un plan et étant destiné à être reçu dans une gorge annulaire ménagée sur un pourtour extérieur cylindrique d'une carrure de boîte de montre en céramique. Selon l'invention, l'anneau ressort comprend sur son pourtour intérieur au moins une patte inclinée par rapport au plan de l'anneau ressort, ladite patte étant destinée à coopérer avec une surface extérieure cylindrique de la carrure de boîte de montre, de sorte à indexer la position de l'anneau ressort par rapport à la carrure.The invention relates to a spring snap ring of a rotating bezel, the spring ring extending in a plane and being intended to be received in an annular groove formed on a cylindrical outer circumference of a watch case middle part. ceramic. According to the invention, the spring ring comprises on its inner periphery at least one lug inclined relative to the plane of the spring ring, said lug being intended to cooperate with a cylindrical outer surface of the watch case middle part, so indexing the position of the spring ring relative to the caseband.

Description

DOMAINE TECHNIQUE DE L'INVENTIONTECHNICAL FIELD OF THE INVENTION

L'invention concerne un anneau ressort d'encliquetage d'une lunette tournante.The invention relates to a snap ring spring for a rotating bezel.

L'invention concerne également un système de lunette tournante comprenant l'anneau ressort.The invention also relates to a rotating bezel system comprising the spring ring.

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

L'invention concerne en outre une montre comportant la boîte de montre.The invention further relates to a watch comprising the watch case.

ETAT DE LA TECHNIQUESTATE OF THE ART

Des systèmes de lunettes tournantes connus sont munis d'un anneau ressort destiné à coopérer avec la lunette tournante pour permettre l'encliquetage de cette dernière. Un tel encliquetage permet ensuite une rotation précise de la lunette tournante sur une carrure de boîte de montre par exemple. Lorsque la carrure est en céramique, cette dernière présente généralement un pourtour extérieur cylindrique muni d'une gorge annulaire destinée à recevoir l'anneau ressort. Toutefois, dans ce cas, des rayons provoqués par l'usinage de la carrure sont présents dans le fond de gorge. Ces rayons, qui sont par exemples visibles sur la figure 2, sont inévitables car ils sont générés par des meules utilisées pour usiner la gorge. Or, un problème qui se pose dans de tels systèmes avec carrure en céramique est que, lorsque l'anneau ressort entre en contact avec le ou les rayon(s) présent(s) en fond de gorge, l'anneau ressort est susceptible de ne plus être positionné à plat dans la gorge. Ceci provoque des problèmes de variation de couple, du jeu voire de la fatigue mécanique entre les pièces, et donc une usure prématurée du système de lunette tournante.Known rotating bezel systems are provided with a spring ring intended to cooperate with the rotating bezel to allow the latter to snap into place. Such a snap-in then allows precise rotation of the rotating bezel on a watch case middle part, for example. When the middle part is ceramic, the latter generally has a cylindrical outer periphery provided with an annular groove intended to receive the spring ring. However, in this case, radii caused by the machining of the middle part are present in the groove back. These rays, which are for example visible on the figure 2 , are unavoidable because they are generated by grinding wheels used to machine the groove. However, a problem which arises in such systems with ceramic middle part is that, when the spring ring comes into contact with the spoke (s) present (s) at the bottom of the groove, the spring ring is liable to no longer be positioned flat in the throat. This causes problems of torque variation, play or even mechanical fatigue between the parts, and therefore premature wear of the rotating bezel system.

RESUMÉ DE L'INVENTIONSUMMARY OF THE INVENTION

L'invention a donc pour but de fournir un anneau ressort d'encliquetage d'une lunette tournante permettant de garantir un bon positionnement de l'anneau ressort dans le fond de gorge d'une carrure de boite de montre en céramique, et d'ainsi réduire l'usure mécanique des pièces et donc d'augmenter la fiabilité et la durabilité de l'ensemble.The object of the invention is therefore to provide a spring ring for engaging a rotating bezel making it possible to guarantee correct positioning of the spring ring in the groove back of a ceramic watch case middle part, and to thus reducing the mechanical wear of the parts and therefore increasing the reliability and durability of the assembly.

A cet effet, l'invention concerne un anneau ressort d'encliquetage d'une lunette tournante qui comprend les caractéristiques mentionnées dans la revendication indépendante 1.To this end, the invention relates to a spring snap ring of a rotating bezel which comprises the features mentioned in independent claim 1.

Des formes particulières de l'anneau ressort sont définies dans les revendications dépendantes 2 à 6.Particular shapes of the spring ring are defined in dependent claims 2 to 6.

La présence d'au moins une patte inclinée sur le pourtour intérieur de l'anneau ressort, laquelle patte est destinée à coopérer avec une surface extérieure cylindrique de la carrure de boîte de montre, permet d'éviter que l'anneau ressort soit en contact avec le ou les rayon(s) présent(s) en fond de gorge. Ceci permet d'indexer la position de l'anneau ressort par rapport à la carrure, et de garantir ainsi un positionnement à plat de l'anneau ressort dans la gorge prévue sur la carrure. La variation du couple de rotation de la lunette ainsi que l'usure mécanique des différentes pièces sont par conséquence réduites par rapport aux systèmes de l'art antérieur. La fiabilité et la durabilité de l'ensemble comprenant l'anneau ressort sont ainsi avantageusement améliorées.The presence of at least one inclined lug on the inner periphery of the spring ring, which lug is intended to cooperate with a cylindrical outer surface of the watch case middle part, makes it possible to prevent the spring ring from coming into contact. with the spoke (s) present at the bottom of the groove. This makes it possible to index the position of the spring ring relative to the middle part, and thus guarantee a flat positioning of the spring ring in the groove provided on the middle part. The variation in the torque of the bezel as well as the mechanical wear of the various parts are consequently reduced compared to the systems of the prior art. The reliability and durability of the assembly comprising the spring ring are thus advantageously improved.

En outre, l'anneau ressort selon l'invention présente également l'avantage d'être facile à fabriquer et à installer au sein d'une carrure de boîte de montre, d'être interchangeable avec différentes pièces existantes actuellement, d'être facilement remplaçable en service après-vente, ainsi que d'améliorer la qualité sensitive du produit ainsi que le ressenti utilisateur, notamment en ce qui concerne la sensation de précision de rotation de la lunette tournante.In addition, the spring ring according to the invention also has the advantage of being easy to manufacture and to install within a watch case middle part, of being interchangeable with various currently existing parts, of being easily replaceable in after-sales service, as well as to improve the sensitive quality of the product as well as the user experience, in particular with regard to the sensation of precision of rotation of the rotating bezel.

Avantageusement, l'anneau ressort comprend trois pattes inclinées réparties sur son pourtour intérieur sur 360°, les trois pattes inclinées étant espacées deux à deux de 120°. Ceci permet de recentrer l'anneau ressort par rapport à la carrure de boîte de montre, indépendamment des rayons présents au fond de la gorge, et d'ainsi améliorer encore le bon positionnement de l'anneau ressort dans la gorge. L'usure mécanique des pièces en est d'autant réduite.Advantageously, the spring ring comprises three inclined lugs distributed over its inner periphery over 360 °, the three inclined lugs being spaced two by two by 120 °. This makes it possible to recenter the spring ring relative to the watch case middle part, independently of the spokes present at the bottom of the groove, and thus further improve the correct positioning of the spring ring in the groove. The mechanical wear of the parts is therefore reduced.

Selon une caractéristique technique particulière de l'invention, l'anneau ressort comprend en outre au moins une languette de crantage destinée à coopérer avec une lunette tournante pour l'encliquetage de ladite lunette sur l'anneau ressort.According to a particular technical characteristic of the invention, the spring ring further comprises at least one notching tongue intended to cooperate with a rotating bezel for the snapping of said bezel onto the spring ring.

A cet effet, l'invention concerne également un système de lunette tournante comprenant l'anneau ressort décrit ci-dessus, et qui comprend les caractéristiques mentionnées dans la revendication dépendante 7. La lunette tournante est typiquement une lunette tournante annulaire, de préférence une lunette unidirectionnelle.To this end, the invention also relates to a rotating bezel system comprising the spring ring described above, and which comprises the features mentioned in dependent claim 7. The rotating bezel is typically an annular rotating bezel, preferably a bezel. unidirectional.

A cet effet, l'invention concerne également une boîte de montre comprenant une carrure en céramique et le système de lunette tournante décrit ci-dessus, et qui comprend les caractéristiques mentionnées dans la revendication dépendante 8.To this end, the invention also relates to a watch case comprising a ceramic middle part and the rotating bezel system described above, and which comprises the characteristics mentioned in dependent claim 8.

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 9.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 9.

BRÈVE DESCRIPTION DES FIGURESBRIEF DESCRIPTION OF THE FIGURES

Les buts, avantages et caractéristiques de l'anneau ressort d'encliquetage d'une lunette tournante 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 d'une boîte de montre équipée d'un système de lunette tournante comprenant un anneau ressort selon un mode de réalisation de l'invention ;
  • la figure 2 est une vue en coupe de la boîte de montre de la figure 1, prise selon un plan de coupe II-II ;
  • la figure 3 est une vue de dessus de l'anneau ressort de la figure 1 ;
  • la figure 4 est une vue en coupe de l'anneau ressort de la figure 3, prise selon un plan de coupe IV-IV ; et
  • la figure 5 est une vue en coupe de l'anneau ressort de la figure 3, prise selon un plan de coupe V-V.
The aims, advantages and characteristics of the spring snap ring of a rotating bezel 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 a perspective view of a watch case equipped with a rotating bezel system comprising a spring ring according to one embodiment of the invention;
  • the figure 2 is a sectional view of the watch case of the figure 1 , taken according to a section II-II plane;
  • the figure 3 is a top view of the spring ring of the figure 1 ;
  • the figure 4 is a sectional view of the spring ring of the figure 3 , taken according to an IV-IV section plane; and
  • the figure 5 is a sectional view of the spring ring of the figure 3 , taken according to a cutting plane VV.

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 en céramique 4. La boîte de montre 2 comprend également un système de lunette tournante 6 ainsi qu'un mouvement horloger, le mouvement horloger n'étant pas représenté sur les figures pour des raisons de clarté. Le système de lunette tournante 6 est monté à rotation sur la carrure 4. De préférence, le système de lunette tournante 6 est formé d'un module indépendant.The figure 1 shows a watch 1 provided with a watch case 2. The watch case 2 typically comprises a ceramic middle part 4. The watch case 2 also comprises a rotating bezel system 6 as well as a watch movement, the watch movement n 'not being shown in the figures for reasons of clarity. The rotating bezel system 6 is rotatably mounted on the middle part 4. Preferably, the rotating bezel system 6 is formed from an independent module.

Comme illustré sur la figure 1, la carrure 4 est de forme annulaire. La carrure 4 comprend une surface extérieure cylindrique 8 qui délimite une partie 10 de la carrure 4 appelée cheminée. La carrure 4 est munie en outre, sur son pourtour extérieur cylindrique, d'une gorge annulaire 12. Comme illustré sur les figures 1 et 2, la gorge annulaire 12 est destinée à recevoir l'anneau ressort 14 selon l'invention, comme cela sera décrit par la suite.As shown on the figure 1 , the caseband 4 is annular in shape. The middle part 4 comprises a cylindrical outer surface 8 which delimits a part 10 of the middle part 4 called the chimney. The middle part 4 is also provided, on its cylindrical outer periphery, with an annular groove 12. As illustrated in the figures. figures 1 and 2 , the annular groove 12 is intended to receive the spring ring 14 according to the invention, as will be described below.

Le système de lunette tournante 6 comprend une lunette tournante et un anneau ressort 14 d'encliquetage de la lunette tournante. La lunette tournante, qui est typiquement une lunette tournante annulaire, de préférence une lunette unidirectionnelle, n'est pas visible sur les figures pour des raisons de clarté. La lunette tournante est maintenue par un ressort à pans qui s'écarte lors du passage de la lunette sur la cheminée de la carrure pour ensuite s'insérer dans la gorge de carrure, et coopère avec l'anneau ressort 14 par encliquetage. L'anneau ressort 14 est reçu dans la gorge annulaire 12 et s'étend dans un plan P1 illustré sur la figure 2, lequel plan P1 est sensiblement horizontal lorsque l'anneau ressort 14 est disposé dans la gorge 12.The rotating bezel system 6 comprises a rotating bezel and a spring ring 14 for engaging the rotating bezel. The rotating bezel, which is typically an annular rotating bezel, of preferably a unidirectional bezel, is not visible in the figures for reasons of clarity. The rotating bezel is held by a flanged spring which moves apart during the passage of the bezel over the chimney of the middle part and then fits into the middle groove, and cooperates with the spring ring 14 by snap-fastening. The spring ring 14 is received in the annular groove 12 and extends in a plane P1 illustrated on figure 2 , which plane P1 is substantially horizontal when the spring ring 14 is disposed in the groove 12.

L'anneau ressort 14 comprend sur son pourtour intérieur au moins une patte 16 inclinée par rapport au plan P1. Dans l'exemple de réalisation illustré sur les figures 1 à 3, l'anneau ressort 14 comprend trois pattes inclinées 16 réparties sur son pourtour intérieur sur 360° et espacées deux à deux de 120°. De préférence, l'anneau ressort 14 comprend en outre au moins une languette de crantage 18 destinée à coopérer avec la lunette tournante pour l'encliquetage de la lunette sur l'anneau ressort 14. Dans l'exemple de réalisation illustré sur les figures 1 à 3, l'anneau ressort 14 comprend trois languettes de crantage 18 réparties sur 360° et espacées deux à deux de 120°. L'anneau ressort 14 est formé d'une seule pièce de matière. L'anneau ressort 14 est par exemple constitué d'un matériau tel que le Phynox.The spring ring 14 comprises on its inner periphery at least one tab 16 inclined relative to the plane P1. In the exemplary embodiment illustrated on figures 1 to 3 , the spring ring 14 comprises three inclined tabs 16 distributed over its inner periphery over 360 ° and spaced two by two by 120 °. Preferably, the spring ring 14 further comprises at least one notching tongue 18 intended to cooperate with the rotating bezel for the snapping of the bezel onto the spring ring 14. In the embodiment illustrated in FIGS. figures 1 to 3 , the spring ring 14 comprises three notching tabs 18 distributed over 360 ° and spaced two by two by 120 °. The spring ring 14 is formed from a single piece of material. The spring ring 14 is for example made of a material such as Phynox.

Comme visible sur la figure 1, chaque patte inclinée 16 coopère avec la surface extérieure cylindrique 8 de la carrure 4, de sorte à indexer la position de l'anneau ressort 14 par rapport à la carrure 4. De cette manière, l'anneau ressort 14 est toujours bien positionné à plat dans la gorge annulaire 12. En particulier, comme illustré sur la figure 2, l'anneau ressort 14 n'entre jamais en contact avec le rayon 19 présent au fond de la gorge 12, ce qui permet d'éviter les problèmes d'usure et de variation de couple. Dans l'exemple de réalisation particulier des figures 1 et 2, ce rayon 19 présente une largeur sensiblement égale à 0,2 mm.As visible on the figure 1 , each inclined tab 16 cooperates with the cylindrical outer surface 8 of the middle part 4, so as to index the position of the spring ring 14 relative to the middle part 4. In this way, the spring ring 14 is always correctly positioned at flat in the annular groove 12. In particular, as illustrated on figure 2 , the spring ring 14 never comes into contact with the spoke 19 present at the bottom of the groove 12, which makes it possible to avoid problems of wear and of torque variation. In the particular embodiment of the figures 1 and 2 , this spoke 19 has a width substantially equal to 0.2 mm.

De préférence, comme illustré sur les figures 1, 3 et 4, chaque patte 16 s'étend en direction du centre 20 de l'anneau ressort 14, et est inclinée vers le haut par rapport au plan P1. Dans l'exemple de réalisation particulier des figures 1 et 4, chaque patte 16 est inclinée par rapport au plan P1 d'un angle sensiblement égal à 25°.Preferably, as shown in the figures 1 , 3 and 4 , each tab 16 extends towards the center 20 of the spring ring 14, and is inclined upwards with respect to the plane P1. In the particular embodiment of the figures 1 and 4 , each tab 16 is inclined relative to the plane P1 by an angle substantially equal to 25 °.

Chaque languette de crantage 18 est configurée pour coopérer soit avec la lunette tournante elle-même, soit avec une pièce rapportée sur la lunette, de sorte à encliqueter la lunette sur l'anneau ressort 14. Pour ce faire, comme illustré sur la figure 5, chaque languette de crantage 18 comprend par exemple une première portion 18a et une seconde portion 18b s'étendant toutes deux vers le haut par rapport au plan P1. La première portion 18a présente par exemple une forme arquée dont la courbure tend à l'éloigner du plan P1, le centre du cercle osculateur pris en tout point de la première portion 18a étant situé à l'opposé du plan P1 par rapport à la languette 18. La seconde portion 18b est par exemple une portion plane, inclinée par rapport au plan P1. Dans l'exemple de réalisation particulier de la figure 5, la seconde portion 18b de chaque languette de crantage 18 est inclinée par rapport au plan P1 d'un angle sensiblement égal à 15°. De préférence, comme illustré sur la figure 1, chaque languette de crantage 18 est formée via une découpe préalable pratiquée dans l'épaisseur de l'anneau ressort 14. La forme de la découpe est ainsi complémentaire de la forme de la languette 18 correspondante.Each notching tab 18 is configured to cooperate either with the rotating bezel itself, or with a part attached to the bezel, so as to snap the bezel onto the spring ring 14. To do this, as illustrated in FIG. figure 5 , each notching tongue 18 comprises for example a first portion 18a and a second portion 18b both extending upwardly relative to the plane P1. The first portion 18a has for example an arcuate shape the curvature of which tends to move it away from the plane P1, the center of the osculating circle taken at any point of the first portion 18a being located opposite the plane P1 with respect to the tongue. 18. The second portion 18b is for example a flat portion, inclined relative to the plane P1. In the particular embodiment of the figure 5 , the second portion 18b of each notching tongue 18 is inclined relative to the plane P1 by an angle substantially equal to 15 °. Preferably, as illustrated on figure 1 , each notching tongue 18 is formed via a preliminary cutout made in the thickness of the spring ring 14. The shape of the cutout is thus complementary to the shape of the corresponding tongue 18.

Claims (9)

Anneau ressort (14) d'encliquetage d'une lunette tournante, l'anneau ressort (14) s'étendant dans un plan (P1) et étant destiné à être reçu dans une gorge annulaire (12) ménagée sur un pourtour extérieur cylindrique d'une carrure (4) de boîte de montre (2) en céramique ;
caractérisé en ce que l'anneau ressort (14) comprend sur son pourtour intérieur au moins une patte (16) inclinée par rapport au plan (P1) de l'anneau ressort (14), ladite patte (16) étant destinée à coopérer avec une surface extérieure cylindrique (8) de la carrure (4) de boîte de montre (2), de sorte à indexer la position de l'anneau ressort (14) par rapport à la carrure (4).Spring ring (14) for locking a rotating bezel, the spring ring (14) extending in a plane (P1) and being intended to be received in an annular groove (12) formed on a cylindrical outer periphery of a middle part (4) of a ceramic watch case (2);
characterized in that the spring ring (14) comprises on its inner periphery at least one tab (16) inclined relative to the plane (P1) of the spring ring (14), said tab (16) being intended to cooperate with a cylindrical outer surface (8) of the middle part (4) of the watch case (2), so as to index the position of the spring ring (14) relative to the middle part (4). Anneau ressort (14) selon la revendication 1, caractérisé en ce que la ou chaque patte (16) est inclinée par rapport au plan (P1) dans lequel s'étend l'anneau ressort (14) d'un angle sensiblement égal à 25°.Spring ring (14) according to Claim 1, characterized in that the or each tab (16) is inclined with respect to the plane (P1) in which the spring ring (14) extends by an angle substantially equal to 25 °. Anneau ressort (14) selon la revendication 1 ou 2, caractérisé en ce que l'anneau ressort (14) comprend trois pattes inclinées (16) réparties sur son pourtour intérieur sur 360°, les trois pattes inclinées (16) étant espacées deux à deux de 120°.Spring ring (14) according to claim 1 or 2, characterized in that the spring ring (14) comprises three inclined tabs (16) distributed over its inner circumference over 360 °, the three inclined tabs (16) being spaced two apart. two of 120 °. Anneau ressort (14) selon l'une quelconque des revendications précédentes, caractérisé en ce que la ou chaque patte (16) s'étend en direction du centre (20) de l'anneau ressort (14), et est inclinée vers le haut par rapport au plan (P1) dans lequel s'étend l'anneau (14).Spring ring (14) according to any one of the preceding claims, characterized in that the or each tab (16) extends towards the center (20) of the spring ring (14), and is inclined upwards relative to the plane (P1) in which the ring (14) extends. Anneau ressort (14) selon l'une quelconque des revendications précédentes, caractérisé en ce que l'anneau ressort (14) comprend en outre au moins une languette de crantage (18) destinée à coopérer avec une lunette tournante pour l'encliquetage de ladite lunette sur l'anneau ressort (14).Spring ring (14) according to any one of the preceding claims, characterized in that the spring ring (14) further comprises at least one notching tongue (18) intended to cooperate with a rotating bezel for the locking of said bezel on the spring ring (14). Anneau ressort (14) selon la revendication 5, caractérisé en ce que l'anneau ressort (14) comprend trois languettes de crantage (18) réparties sur l'anneau (14) sur 360°, les trois languettes (18) étant espacées deux à deux de 120°.Spring ring (14) according to Claim 5, characterized in that the spring ring (14) comprises three notching tabs (18) distributed over the ring (14) over 360 °, the three tabs (18) being spaced two apart. at two 120 °. Système de lunette tournante (6) destiné à être monté à rotation sur une carrure (4) de boîte de montre (2) en céramique à l'intérieur de laquelle est logé un mouvement d'horlogerie, le système (6) comprenant une lunette tournante et un anneau ressort (14) d'encliquetage de la lunette tournante, caractérisé en ce que l'anneau ressort (14) est conforme à l'une quelconque des revendications précédentes.Rotating bezel system (6) intended to be rotatably mounted on a ceramic watch case (2) middle part (4) inside which a clockwork movement is housed, the system (6) comprising a bezel rotating ring and a spring ring (14) for engaging the rotating bezel, characterized in that the spring ring (14) conforms to any one of the preceding claims. Boîte de montre (2) comprenant une carrure (4) en céramique et un système (6) muni d'une lunette tournante montée à rotation sur la carrure (4), la carrure (4) présentant un pourtour extérieur cylindrique muni d'une gorge annulaire (12), caractérisée en ce que le système de lunette tournante (6) est conforme à la revendication 7, l'anneau ressort (14) étant reçu dans la gorge annulaire (12) prévue sur la carrure (4), la ou chaque patte inclinée (16) coopérant avec une surface extérieure cylindrique (8) de la carrure (4).Watch case (2) comprising a ceramic middle part (4) and a system (6) provided with a rotating bezel mounted to rotate on the middle part (4), the middle part (4) having a cylindrical outer circumference provided with a annular groove (12), characterized in that the rotating bezel system (6) conforms to claim 7, the spring ring (14) being received in the annular groove (12) provided on the middle part (4), the or each inclined tab (16) cooperating with a cylindrical outer surface (8) of the middle part (4). Montre (1) comportant une boîte de montre (2), caractérisée en ce que la boîte de montre (2) est conforme à la revendication 8.Watch (1) comprising a watch case (2), characterized in that the watch case (2) conforms to claim 8.
EP19201389.4A 2019-10-04 2019-10-04 Spring ring of a snap fitting of a rotating bezel Active EP3800514B1 (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
EP19201389.4A EP3800514B1 (en) 2019-10-04 2019-10-04 Spring ring of a snap fitting of a rotating bezel
JP2020152557A JP7206240B2 (en) 2019-10-04 2020-09-11 Spring ring for snap-fitting the rotating bezel
US17/022,373 US11789408B2 (en) 2019-10-04 2020-09-16 Spring ring for snap fitting a rotating bezel
KR1020200125097A KR102515197B1 (en) 2019-10-04 2020-09-25 Spring ring for snap fitting a rotating bezel
CN202011048269.9A CN112612197B (en) 2019-10-04 2020-09-29 Spring ring for snap-fitting a rotary bezel

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP19201389.4A EP3800514B1 (en) 2019-10-04 2019-10-04 Spring ring of a snap fitting of a rotating bezel

Publications (2)

Publication Number Publication Date
EP3800514A1 true EP3800514A1 (en) 2021-04-07
EP3800514B1 EP3800514B1 (en) 2024-01-17

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EP19201389.4A Active EP3800514B1 (en) 2019-10-04 2019-10-04 Spring ring of a snap fitting of a rotating bezel

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US (1) US11789408B2 (en)
EP (1) EP3800514B1 (en)
JP (1) JP7206240B2 (en)
KR (1) KR102515197B1 (en)
CN (1) CN112612197B (en)

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Also Published As

Publication number Publication date
JP2021060395A (en) 2021-04-15
JP7206240B2 (en) 2023-01-17
US20210103252A1 (en) 2021-04-08
CN112612197B (en) 2023-03-28
US11789408B2 (en) 2023-10-17
KR102515197B1 (en) 2023-03-29
KR20210041495A (en) 2021-04-15
EP3800514B1 (en) 2024-01-17
CN112612197A (en) 2021-04-06

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