EP2624076B1 - Watch case provided with a rotatable, indexed bezel - Google Patents

Watch case provided with a rotatable, indexed bezel Download PDF

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Publication number
EP2624076B1
EP2624076B1 EP12405018.8A EP12405018A EP2624076B1 EP 2624076 B1 EP2624076 B1 EP 2624076B1 EP 12405018 A EP12405018 A EP 12405018A EP 2624076 B1 EP2624076 B1 EP 2624076B1
Authority
EP
European Patent Office
Prior art keywords
bezel
watch case
ring
indexing
pawl
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
EP12405018.8A
Other languages
German (de)
French (fr)
Other versions
EP2624076A8 (en
EP2624076A1 (en
Inventor
Jean-Louis Bertrand
Frédéric Mossière
Grégory Schmidt
Jérôme Tyrode
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.)
Montres Tudor SA
Original Assignee
Montres Tudor 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 Montres Tudor SA filed Critical Montres Tudor SA
Priority to EP12405018.8A priority Critical patent/EP2624076B1/en
Priority to JP2013017988A priority patent/JP6087160B2/en
Priority to US13/759,710 priority patent/US9188959B2/en
Priority to CN201310079969.8A priority patent/CN103246197B/en
Publication of EP2624076A1 publication Critical patent/EP2624076A1/en
Publication of EP2624076A8 publication Critical patent/EP2624076A8/en
Application granted granted Critical
Publication of EP2624076B1 publication Critical patent/EP2624076B1/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
    • 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
    • G04B19/22—Arrangements for indicating different local apparent times; Universal time pieces
    • 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
    • G04B19/22—Arrangements for indicating different local apparent times; Universal time pieces
    • G04B19/223—Arrangements for indicating different local apparent times; Universal time pieces with rotary disc, rotary bezel, or rotary dial
    • 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
    • G04B19/22—Arrangements for indicating different local apparent times; Universal time pieces
    • G04B19/223—Arrangements for indicating different local apparent times; Universal time pieces with rotary disc, rotary bezel, or rotary dial
    • G04B19/225—Arrangements for indicating different local apparent times; Universal time pieces with rotary disc, rotary bezel, or rotary dial driving mechanism for the 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 watch case (or watch case), in particular a box provided with a rotating bezel (or orientable) and indexed.
  • the invention also relates to a watch, in particular a wristwatch, comprising such a box.
  • box devices equipped with a rotating bezel and notched or indexed unidirectionally or bi-directionally are known. These devices are mainly intended to minimize and / or simplify the components necessary for the implementation of such a telescope. To a lesser extent, certain devices have the objective of optimizing the sensations perceived during the rotation of the telescope.
  • Document is known CH631592 a watch case provided with a rotating and notched bezel whose section of an annular seat of a middle is particularly weak.
  • the bezel is mounted on a ring which is integral with the annular seat of the middle part.
  • This comprises two bending blades which are arranged on one and the same radius and which are inclined relative to the plane of the rotating bezel so as to cooperate with a toothing set on a lower face of the bezel.
  • this ring through its two bending blades, simultaneously performs the angular indexing of the bezel, and its holding in position by elastically applying the bezel against the middle part.
  • the notching or indexing function of the telescope is therefore dependent on the friction torque induced by the ring, and it is not possible to optimize the friction torque so as to improve the sensations during the rotation of the telescope. without altering the notching function.
  • the vertical location and centering of the bezel vis-à-vis the box are defined through a single set of protrusions formed respectively on the middle and the bezel.
  • the feeling felt by the user during the rotation of the bezel is particularly dependent on the manner in which it is manipulated, in particular the intensity of the pressure. which is applied to it and how it is distributed.
  • a known solution within certain products of the market is to implement a ring with two separate sets of bending blades.
  • This embodiment is distinguished by the fact that a first set of flexible blades is dedicated to the angular indexing of the bezel by cooperating with the internal toothing of the latter, and a second set of flexible blades can generate the torque desired friction by elastically applying the bezel against a projection formed on the middle part.
  • This solution has the advantage of separating the notching function from that of braking but requires, for this purpose, an annular section sufficiently large to have each set of flexible blades on two distinct radii.
  • the aesthetics of the watch case is dependent on the solution.
  • just as in the solution exposed in the document CH631592 it is not possible to adjust the friction torque without influencing the centering of the telescope, and the feeling felt by the user during the rotation of the telescope is particularly dependent on the manner in which it is manipulated.
  • the document EP686897 discloses a watch case comprising a caseband, a bezel rotatably mounted on the middle part, and a first indexing means and a second indexing means cooperating so as to index the seat in position relative to the middle part, the watch case comprising a first elastic member arranged to press the bezel against the middle part and a second elastic element arranged to press the first indexing means against the second indexing means.
  • the object of the invention is to provide a watch case to overcome the disadvantages mentioned above and improve the watch cases known from the prior art.
  • the invention provides a watch case for independently adjusting the friction functions of the bezel on the middle and indexing of the bezel relative to the middle part while maintaining small sections of middle and bezel, in particular by making it possible to maximize the ratio of the outer diameter of the ice to the total diameter of the middle part.
  • a watch case according to the invention is defined by claim 1.
  • a ring and / or a middle part may comprise an immobilizing element in rotation of the ring relative to the middle part.
  • the immobilizing element may comprise a lug on the ring cooperating with a recess in the middle part.
  • the immobilizing element may comprise a lug in the middle part cooperating with a recess in the ring.
  • a pawl can be arranged in a housing made within the middle part.
  • a watch according to the invention is defined by claim 15.
  • a first embodiment of a watch case 9 is described below with reference to the Figures 1 to 4 .
  • the watch case further comprises a first elastic element 4b, 4c, 4d pressing the bezel against the middle part so as to ensure a friction function between the middle and the bezel and a second elastic element 4a pressing the first indexing element 1 against the second indexing element 3a.
  • the ring comprises an opening 5a through which is disposed the first indexing element.
  • bezel and middle are linked by a pivot connection made by an inner diameter 3c of the bezel surrounding an outer diameter 2h of the middle part. Furthermore, the bezel and middle part are stopped relative to one another according to the axis of rotation of the bezel, in a first direction, by contact of the bezel against the caseband via the ring 5 and, in the other direction, thanks to a stop ring 6 or snap ring mounted both in a groove 2j of the middle and in a groove 3d of the bezel.
  • means make it possible to ensure a friction function between the middle part and the bezel during the rotation of the bezel on the middle part, that is to say to ensure the existence of a mechanical torque of determined intensity resistant to the rotation of the bezel on the middle part.
  • means make it possible to provide a function of indexing the positions of the telescope relative to the middle part.
  • This indexing function may be characterized by a mechanical torque to be overcome to move the bezel relative to the middle part between two successive indexing positions and / or by a mechanical torque maintaining the immobile bezel relative to the middle part.
  • the first indexing element comprises a pawl 1 which is pressed in a direction perpendicular to the plane of the telescope by the second elastic element comprising a helical spring 4a.
  • the second indexing element comprises teeth or a toothing 3a formed on a lower face 3b of the bezel 3.
  • the pawl and the toothing cooperate to perform indexing, each recess between two successive teeth defining a position in cooperation with the ratchet when the latter is between the two teeth.
  • the pawl is returned by the second elastic element against the toothing.
  • the pawl 1 and the spring 4a are housed within a cutout or housing 2a formed on an annular seat 2i of the middle part 2.
  • the housing is for example a cylindrical bore in which the pawl slides freely.
  • the spring can be supported at the bottom of the housing and under the ratchet.
  • the ratchet head is shaped to interact with the teeth. It may, for example, have a triangular profile and complementary hollow profiles present between two successive teeth. The two flanks of the ratchet head may have different slopes so that a slope allows the rotation of the telescope in one direction and the other slope prohibits the rotation of the telescope in the second direction.
  • the geometries of the pawl 1 and the toothing 3a can be defined so as to generate a unidirectional or bi-directional detent so as to adapt to the functionality of the wristwatch and the information indicated by the disc 3 'which is reported on the telescope 3.
  • a ring 5 is interposed between the bezel and the middle and this ring has the opening 5a allowing the pawl, in particular to the ratchet head, to pass through the ring to cooperate with the toothing.
  • the opening has a shape complementary or at least partially complementary to the section of the pawl head (perpendicularly to the axis of the bore 2a) and making it possible to prevent the pawl from rotating relative to the axis of the ratchet. the bore.
  • the opening may have a rectangular shape as shown in FIG. figure 4 .
  • the cutout 5a formed on the ring 5 also has the advantage of angularly indexing the pawl 1 relative to the toothing 3a of the lower face 3b of the bezel 3.
  • This arrangement makes it possible to simplify at best the machining of the pawl 1
  • the pawl may be generally cylindrical in revolution and come to be housed in a cylindrical bore 2a of revolution.
  • the opening 5a can also lead to the inner diameter or outer diameter of the ring 5.
  • the architecture of the elements can be reversed, the pawl being housed in the bezel and the toothing being secured to the middle part.
  • the first indexing element, the second indexing element and the second elastic element make it possible to provide the indexing function mentioned above.
  • the first elastic element 4b, 4c, 4d plates the bezel against the middle part. More exactly, the first elastic element bears on the middle part and plates the ring 5 against the bezel, the latter being pressed against the stop ring 6 which is itself pressed against the middle part.
  • the first elastic element may comprise several springs, in particular one, two, three, four helical springs 4b, 4c, 4d, or even more than four helical springs.
  • the springs are each housed in a cutout or housing 2b, 2c, 2d formed on the annular seat 2i of the middle part 2.
  • the housing is for example a cylindrical bore in which the spring can be deformed freely. The spring can bear against the bottom of the housing and on a lower face of the ring.
  • the housings 2b, 2c, 2d are made on the same radius, or substantially on the same radius, centered on the axis of rotation of the bezel relative to the middle part.
  • the housing 2a is preferably also centered on this radius or substantially on this radius. More preferably, these different housings are angularly distributed substantially equidistantly.
  • the ring and / or the middle part comprise an element 2e, 2f; 5b, 5c immobilization in rotation of the ring relative to the middle part.
  • the immobilizing element comprises a lug 5b, 5c on the ring cooperating with a recess 2e, 2f in the middle part.
  • the immobilizing element comprises a lug in the middle part cooperating with a recess in the ring.
  • the first elastic element and the ring provide the friction function mentioned above.
  • the ring and its opening make it possible to separate the indexing and friction functions.
  • the operating parameters of these functions can thus be set independently of each other.
  • the rotating bezel on the middle with a particularly uniform friction torque through the springs and the ring making the interface between the middle and the underside of the bezel.
  • the centering of the telescope is also guaranteed independently of its vertical positioning: the telescope 3 is centered by means of its inside diameter 3c which is shaped to cooperate with the portion 2h of the caseband 2. Its vertical retention is, as for it, conventionally defined through the ring 6 which is here directly attached to the middle part 2. Moreover, with such a box, we can minimize the annular section of the underside of the bezel.
  • a second embodiment of a watch case 19 is described below with reference to Figures 5 to 7 .
  • the second embodiment differs from the first embodiment only in the production of the first elastic element.
  • the first elastic element is constituted by the ring 15 itself.
  • the ring is an elastic washer.
  • the ring serves as a spring washer and thus allows to generate a homogeneous braking torque to the bezel regardless of any additional spring.
  • the ring is fixed to the middle part at its inside diameter 15d and bears against the bezel at its outer diameter 15e.
  • the ring 15 comprises at least one immobilizing element, for example a pin 15b, designed to cooperate with an immobilizing element 12e of the caseband 12.
  • the ring 15 is pressed against a portion of the annular seat of the middle part 12 by a ring 17 at its inside diameter.
  • the vertical location of the telescope 13 is defined by a ring 16 so that, once the bezel is mounted on the caseband, its lower face 13b comes into contact with the ring 15, at its outer diameter 15d so as to bend in a groove 12g provided on the annular seat of the middle part.
  • the deformation of the ring 15 makes it possible elastically pressing the bezel 13 against the middle part 12 by means of the ring 16.
  • the friction torque is of course adjustable depending on the thickness of the ring and its active section which is defined by the radial extent of the groove 12g.
  • a cutout 15a is provided on the ring 15 so that the pawl 11 disposed within the middle part 12 can come into contact with the edge toothing 13a which is located on a separate plan of the underside 13b.
  • the ring may be attached to the middle part, respectively to the bezel, at its outer diameter and may bear against the bezel, respectively against the middle at its inner diameter.
  • a third embodiment of a watch case 29 is described below with reference to the figure 8 .
  • the third embodiment differs from the first embodiment only in the production of the first elastic element.
  • the first elastic element is constituted by the ring 25 itself.
  • the ring serves as a spring washer and thus allows to generate a homogeneous braking torque to the bezel regardless of any additional spring.
  • the ring (25) has a frustoconical shape in the absence of stress. It is for example constituted by a washer type "Belleville".
  • the ring is mounted bearing against the middle part, in particular in a groove 22g, and bearing against the bezel, in particular against the underside 23b of the bezel.
  • the washer can be disposed within the groove 22g formed on the annular seat of the middle and energized by the underside 23b of the bezel 23 which is positioned vertically so as to generate the expected friction torque to the bezel .
  • the frustoconical geometry of the ring 25 makes it possible to arrange the edge toothing 23a on the lower face 23b of the bezel 23.
  • the braking torque is of course adjustable as a function of the thickness of the ring and its section.
  • a cutout is provided on the ring 25 so that the pawl, disposed within the middle part 22, can come into contact with the toothing 23a.
  • the ring 15 comprises at least one immobilizing element, for example a lug 25b, designed to cooperate with an immobilizing element 22e of the middle part 22.
  • the ring may be attached to the middle part, respectively to the bezel, at its outer diameter and may bear against the bezel, respectively against the middle part at its diameter. inside.
  • the ring and / or the middle part may comprise an immobilizing element in rotation of the ring relative to the middle part.
  • the immobilizing element may comprise a lug on the ring cooperating with a recess in the middle part.
  • the immobilizing element may comprise a lug in the middle part cooperating with a recess in the ring.
  • a pawl can be arranged in a housing made within the middle part.
  • the watch case according to the invention therefore makes it possible to provide independent friction and indexing functions while limiting the surface area required for their implementation, in particular the section of the annular seat of the middle part can be minimized.
  • the number of components required for implementation can also be limited. In particular, it is possible to maximize the outer diameter of the ice with respect to the total diameter of the middle part and thus allow more freedom in aesthetic research.

Description

L'invention concerne une boîte de montre (ou boîtier de montre), notamment une boîte munie d'une lunette tournante (ou orientable) et indexée. L'invention concerne encore une montre, en particulier une montre bracelet, comprenant une telle boîte.The invention relates to a watch case (or watch case), in particular a box provided with a rotating bezel (or orientable) and indexed. The invention also relates to a watch, in particular a wristwatch, comprising such a box.

On connaît de nombreuses réalisations de dispositifs de boîtes munies d'une lunette tournante et crantée ou indexée de manière unidirectionnelle ou bidirectionnelle. Ces dispositifs visent majoritairement à minimiser et/ou à simplifier les composants nécessaires à la mise en place d'une telle lunette. Dans une moindre mesure, certains dispositifs ont pour objectif d'optimiser les sensations perçues lors de la rotation de la lunette.Numerous embodiments of box devices equipped with a rotating bezel and notched or indexed unidirectionally or bi-directionally are known. These devices are mainly intended to minimize and / or simplify the components necessary for the implementation of such a telescope. To a lesser extent, certain devices have the objective of optimizing the sensations perceived during the rotation of the telescope.

On connaît du document CH631592 une boîte de montre munie d'une lunette tournante et crantée dont la section d'un siège annulaire d'une carrure est particulièrement faible. La lunette est montée sur une bague qui est solidaire du siège annulaire de la carrure. Celle-ci comporte deux lames de flexion qui sont disposées sur un seul et même rayon et qui sont inclinées par rapport au plan de la lunette tournante de façon à coopérer avec une denture de chant formée sur une face inférieure de la lunette. Ainsi, cette bague, par l'entremise de ses deux lames de flexion, réalise simultanément l'indexation angulaire de la lunette, ainsi que son maintien en position en appliquant élastiquement la lunette à l'encontre de la carrure. La fonction de crantage ou d'indexation de la lunette est donc dépendante du couple de friction induit par la bague, et il n'est pas possible d'optimiser le couple de friction de manière à améliorer les sensations lors de la rotation de la lunette sans altérer la fonction de crantage. En outre, la localisation verticale et le centrage de la lunette vis-à-vis de la boîte sont définis par le biais d'un seul et unique jeu de saillies formées respectivement sur la carrure et la lunette. Ainsi, il n'est pas possible d'ajuster la position verticale de la lunette en vue de régler le couple de friction sans influencer le centrage de la lunette. Enfin, du fait des multiples pliages réalisés sur la circonférence de la bague, la sensation ressentie par l'utilisateur lors de la rotation de la lunette est particulièrement dépendante de la façon dont celle-ci est manipulée, notamment de l'intensité de la pression axiale qui lui est appliquée et de la manière dont celle-ci est répartie.Document is known CH631592 a watch case provided with a rotating and notched bezel whose section of an annular seat of a middle is particularly weak. The bezel is mounted on a ring which is integral with the annular seat of the middle part. This comprises two bending blades which are arranged on one and the same radius and which are inclined relative to the plane of the rotating bezel so as to cooperate with a toothing set on a lower face of the bezel. Thus, this ring, through its two bending blades, simultaneously performs the angular indexing of the bezel, and its holding in position by elastically applying the bezel against the middle part. The notching or indexing function of the telescope is therefore dependent on the friction torque induced by the ring, and it is not possible to optimize the friction torque so as to improve the sensations during the rotation of the telescope. without altering the notching function. In addition, the vertical location and centering of the bezel vis-à-vis the box are defined through a single set of protrusions formed respectively on the middle and the bezel. Thus, it is not possible to adjust the vertical position of the telescope to adjust the friction torque without influencing the centering of the telescope. Finally, because of the multiple bends made on the circumference of the ring, the feeling felt by the user during the rotation of the bezel is particularly dependent on the manner in which it is manipulated, in particular the intensity of the pressure. which is applied to it and how it is distributed.

Pour remédier au moins partiellement à ces inconvénients, une solution connue au sein de certains produits du marché consiste à mettre en oeuvre une bague dotée de deux jeux distincts de lames de flexion. Cette réalisation se distingue par le fait qu'un premier jeu de lames flexibles est dédié à l'indexation angulaire de la lunette en venant coopérer avec la denture intérieure de cette dernière, et qu'un deuxième jeu de lames flexibles permet de générer le couple de friction souhaité en appliquant élastiquement la lunette à l'encontre d'une saillie formée sur la carrure. Cette solution présente l'avantage de dissocier la fonction de crantage de celle de freinage mais nécessite, pour ce faire, une section annulaire suffisamment grande pour disposer chacun des jeux de lames flexibles sur deux rayons distincts. Ainsi, l'esthétique de la boîte de montre est tributaire de la solution. D'autre part, tout comme dans la solution exposée au sein du document CH631592 , il n'est pas possible d'ajuster le couple de friction sans influencer le centrage de la lunette, et la sensation ressentie par l'utilisateur lors de la rotation de la lunette est particulièrement dépendante de la façon dont celle-ci est manipulée.To at least partially overcome these disadvantages, a known solution within certain products of the market is to implement a ring with two separate sets of bending blades. This embodiment is distinguished by the fact that a first set of flexible blades is dedicated to the angular indexing of the bezel by cooperating with the internal toothing of the latter, and a second set of flexible blades can generate the torque desired friction by elastically applying the bezel against a projection formed on the middle part. This solution has the advantage of separating the notching function from that of braking but requires, for this purpose, an annular section sufficiently large to have each set of flexible blades on two distinct radii. Thus, the aesthetics of the watch case is dependent on the solution. On the other hand, just as in the solution exposed in the document CH631592 it is not possible to adjust the friction torque without influencing the centering of the telescope, and the feeling felt by the user during the rotation of the telescope is particularly dependent on the manner in which it is manipulated.

Une solution permettant d'imprimer à la lunette un couple de friction particulièrement homogène et ajustable indépendamment de son centrage est exposée au sein du document EP1416341A1 . Ce dernier décrit une lunette tournante qui est centrée et maintenue en position sur la carrure par l'intermédiaire de billes de roulement pressées dans une direction perpendiculaire au plan de la lunette par des ressorts hélicoïdaux dans un chemin de roulement formé sur la face inférieure de la lunette. Une telle solution permet de remédier, au moins partiellement, aux inconvénients des conceptions précitées. Toutefois, la section annulaire de la face inférieure de cette lunette ne permet pas d'adjoindre la fonction de crantage à celle du maintien du positionnement angulaire de lunette.A solution that makes it possible to print on the telescope a particularly homogeneous and adjustable friction torque independently of its centering is exposed within the document EP1416341A1 . The latter describes a rotating bezel that is centered and held in position on the middle through rolling balls pressed in a direction perpendicular to the plane of the bezel by helical springs in a raceway formed on the underside of the bezel. Such a solution overcomes, at least partially, the disadvantages of the aforementioned designs. However, the annular section of the underside of this bezel does not allow to add the lock function to that of maintaining the angular positioning of the bezel.

Le document EP686897 divulgue une boîte de montre comprenant une carrure, une lunette montée à rotation sur la carrure, et un premier moyen d'indexation et un deuxième moyen d'indexation coopérant de sorte à indexer la lunette en position relativement à la carrure, la boîte de montre comprenant un premier élément élastique agencé pour plaquer la lunette contre la carrure et un deuxième élément élastique agencé pour plaquer le premier moyen d'indexation contre le deuxième moyen d'indexation.The document EP686897 discloses a watch case comprising a caseband, a bezel rotatably mounted on the middle part, and a first indexing means and a second indexing means cooperating so as to index the seat in position relative to the middle part, the watch case comprising a first elastic member arranged to press the bezel against the middle part and a second elastic element arranged to press the first indexing means against the second indexing means.

Le but de l'invention est de fournir une boîte de montre permettant de remédier aux inconvénients mentionnés précédemment et d'améliorer les boîtes de montre connues de l'art antérieur. En particulier, l'invention propose une boîte de montre permettant de régler de manière indépendante les fonctions de friction de la lunette sur la carrure et d'indexation de la lunette relativement à la carrure tout en conservant de faibles sections de carrure et de lunette, en particulier en permettant de maximiser le rapport du diamètre extérieur de la glace sur le diamètre total de la carrure.The object of the invention is to provide a watch case to overcome the disadvantages mentioned above and improve the watch cases known from the prior art. In particular, the invention provides a watch case for independently adjusting the friction functions of the bezel on the middle and indexing of the bezel relative to the middle part while maintaining small sections of middle and bezel, in particular by making it possible to maximize the ratio of the outer diameter of the ice to the total diameter of the middle part.

Une boîte de montre selon l'invention est définie par la revendication 1.A watch case according to the invention is defined by claim 1.

Différents modes de réalisation d'une boîte de montre selon l'invention sont définis par les revendications 1 à 14.Different embodiments of a watch case according to the invention are defined by claims 1 to 14.

Dans ces différents modes de réalisation, une bague et/ou une carrure peut comprendre un élément d'immobilisation en rotation de la bague par rapport à la carrure. L'élément d'immobilisation peut comprendre un ergot sur la bague coopérant avec un évidement dans la carrure. Alternativement, l'élément d'immobilisation peut comprendre un ergot dans la carrure coopérant avec un évidement dans la bague.In these various embodiments, a ring and / or a middle part may comprise an immobilizing element in rotation of the ring relative to the middle part. The immobilizing element may comprise a lug on the ring cooperating with a recess in the middle part. Alternatively, the immobilizing element may comprise a lug in the middle part cooperating with a recess in the ring.

Dans ces différents modes de réalisation, un cliquet peut être disposé dans un logement réalisé au sein de la carrure.In these various embodiments, a pawl can be arranged in a housing made within the middle part.

Une montre selon l'invention est définie par la revendication 15.A watch according to the invention is defined by claim 15.

Les dessins annexés représentent, à titre d'exemples non limitatifs, trois modes de réalisation d'une boîte de montre selon l'invention.

  • La figure 1 est une vue éclatée en perspective d'un premier mode de réalisation d'une boîte de montre selon l'invention.
  • La figure 2 est une vue de face d'une carrure utilisée dans le premier mode de réalisation de la boîte de montre selon l'invention.
  • La figure 3 est une vue en coupe partielle selon le plan III-III de la figure 2 du premier mode de réalisation de la boîte de montre selon l'invention.
  • La figure 4 est une vue de face de détail de la carrure au niveau d'un élément d'indexation de la lunette relativement à la carrure.
  • La figure 5 est une vue en coupe partielle d'un deuxième mode de réalisation de la boîte de montre selon l'invention.
  • La figure 6 est une vue en perspective de la carrure au niveau d'un élément d'indexation de la lunette relativement à la carrure utilisée dans le deuxième mode de réalisation de la boîte de montre selon l'invention.
  • La figure 7 est une vue en perspective d'une bague utilisée dans le deuxième mode de réalisation de la boîte de montre selon l'invention.
  • La figure 8 est une vue en coupe partielle d'un troisième mode de réalisation de la boîte de montre selon l'invention.
The attached drawings show, by way of non-limiting examples, three embodiments of a watch case according to the invention.
  • The figure 1 is an exploded perspective view of a first embodiment of a watch case according to the invention.
  • The figure 2 is a front view of a middle part used in the first embodiment of the watch case according to the invention.
  • The figure 3 is a partial sectional view along the plane III-III of the figure 2 of the first embodiment of the watch case according to the invention.
  • The figure 4 is a front view of detail of the middle part at an indexing element of the bezel relative to the middle part.
  • The figure 5 is a partial sectional view of a second embodiment of the watch case according to the invention.
  • The figure 6 is a perspective view of the caseband at an indexing element of the bezel relative to the caseband used in the second embodiment of the watch case according to the invention.
  • The figure 7 is a perspective view of a ring used in the second embodiment of the watch case according to the invention.
  • The figure 8 is a partial sectional view of a third embodiment of the watch case according to the invention.

Un premier mode de réalisation d'une boîte de montre 9 est décrit ci-après en référence aux figures 1 à 4.A first embodiment of a watch case 9 is described below with reference to the Figures 1 to 4 .

La boîte de montre 9 comprend :

  • une carrure 2,
  • une lunette 3 montée à rotation sur la carrure,
  • une bague 5 d'interface entre la carrure et la lunette, et
  • un premier élément d'indexation 1 et un deuxième élément d'indexation 3a coopérant de sorte à indexer la lunette en position relativement à la carrure.
The watch case 9 includes:
  • a middle 2,
  • a bezel 3 rotatably mounted on the middle part,
  • a ring 5 interface between the middle and the bezel, and
  • a first indexing element 1 and a second indexing element 3a cooperating so as to index the bezel in position relative to the middle part.

La boîte de montre comprend encore un premier élément élastique 4b, 4c, 4d plaquant la lunette contre la carrure de façon à assurer une fonction de friction entre la carrure et la lunette et un deuxième élément élastique 4a plaquant le premier élément d'indexation 1 contre le deuxième élément d'indexation 3a. La bague comprend une ouverture 5a au travers de laquelle est disposé le premier élément d'indexation.The watch case further comprises a first elastic element 4b, 4c, 4d pressing the bezel against the middle part so as to ensure a friction function between the middle and the bezel and a second elastic element 4a pressing the first indexing element 1 against the second indexing element 3a. The ring comprises an opening 5a through which is disposed the first indexing element.

Pour assurer la rotation de la lunette sur la carrure, lunette et carrure sont liées par une liaison pivot réalisée par un diamètre intérieur 3c de la lunette venant entourer un diamètre extérieur 2h de la carrure. Par ailleurs, les lunette et carrure sont arrêtées l'une par rapport à l'autre selon l'axe de rotation de la lunette, dans un premier sens, par contact de la lunette contre la carrure via la bague 5 et, dans l'autre sens, grâce à un anneau d'arrêt 6 ou jonc d'arrêt monté à la fois dans une rainure 2j de la carrure et dans une rainure 3d de la lunette.To ensure the rotation of the bezel on the middle, bezel and middle are linked by a pivot connection made by an inner diameter 3c of the bezel surrounding an outer diameter 2h of the middle part. Furthermore, the bezel and middle part are stopped relative to one another according to the axis of rotation of the bezel, in a first direction, by contact of the bezel against the caseband via the ring 5 and, in the other direction, thanks to a stop ring 6 or snap ring mounted both in a groove 2j of the middle and in a groove 3d of the bezel.

Comme expliqué précédemment, des moyens permettent d'assurer une fonction de friction entre la carrure et la lunette lors de la rotation de la lunette sur la carrure, c'est-à-dire d'assurer l'existence d'un couple mécanique d'intensité déterminée résistant à la rotation de la lunette sur la carrure. Par ailleurs, comme expliqué précédemment, des moyens permettent d'assurer une fonction d'indexation des positions de la lunette relativement à la carrure. Cette fonction d'indexation peut être caractérisée par un couple mécanique à vaincre pour déplacer la lunette par rapport à la carrure entre deux positions successives d'indexation et/ou par un couple mécanique de maintien de la lunette immobile relativement à la carrure. Les éléments décrits plus en détail ci-après et permettant d'assurer ces deux fonctions, permettent en outre d'assurer une indépendance des deux fonctions dans un encombrement restreint.As explained above, means make it possible to ensure a friction function between the middle part and the bezel during the rotation of the bezel on the middle part, that is to say to ensure the existence of a mechanical torque of determined intensity resistant to the rotation of the bezel on the middle part. Moreover, as previously explained, means make it possible to provide a function of indexing the positions of the telescope relative to the middle part. This indexing function may be characterized by a mechanical torque to be overcome to move the bezel relative to the middle part between two successive indexing positions and / or by a mechanical torque maintaining the immobile bezel relative to the middle part. The elements described in more detail below and to ensure these two functions, also allow to ensure independence of the two functions in a small footprint.

Le premier élément d'indexation comprend un cliquet 1 qui est pressé dans une direction perpendiculaire au plan de la lunette par le deuxième élément élastique comprenant un ressort hélicoïdal 4a. Le deuxième élément d'indexation comprend des dents ou une denture de chant 3a formée sur une face inférieure 3b de la lunette 3. Ainsi, le cliquet et la denture coopèrent pour réaliser une indexation, chaque creux entre deux dents successives définissant une position en coopération avec le cliquet lorsque ce dernier se trouve entre les deux dents. Le cliquet est rappelé par le deuxième élément élastique contre la denture.The first indexing element comprises a pawl 1 which is pressed in a direction perpendicular to the plane of the telescope by the second elastic element comprising a helical spring 4a. The second indexing element comprises teeth or a toothing 3a formed on a lower face 3b of the bezel 3. Thus, the pawl and the toothing cooperate to perform indexing, each recess between two successive teeth defining a position in cooperation with the ratchet when the latter is between the two teeth. The pawl is returned by the second elastic element against the toothing.

Avantageusement, le cliquet 1 et le ressort 4a sont logés au sein d'une découpe ou logement 2a réalisé sur un siège annulaire 2i de la carrure 2. Le logement est par exemple un alésage cylindrique dans lequel le cliquet coulisse librement. Le ressort peut prendre appui au fond du logement et sous le cliquet. La tête du cliquet est conformée pour venir interagir avec la denture. Elle peut, par exemple, présenter un profil triangulaire et complémentaire des profils en creux présents entre deux dents successives. Les deux flancs de la tête du cliquet peuvent avoir des pentes différentes afin qu'une pente permette la rotation de la lunette dans un premier sens et que l'autre pente interdise la rotation de la lunette dans le deuxième sens. Ainsi, les géométries du cliquet 1 et de la denture 3a peuvent être définies de façon à générer un crantage unidirectionnel ou bidirectionnel de façon à s'adapter à la fonctionnalité de la montre-bracelet et aux informations indiquées par le disque 3' qui est rapporté sur la lunette 3.Advantageously, the pawl 1 and the spring 4a are housed within a cutout or housing 2a formed on an annular seat 2i of the middle part 2. The housing is for example a cylindrical bore in which the pawl slides freely. The spring can be supported at the bottom of the housing and under the ratchet. The ratchet head is shaped to interact with the teeth. It may, for example, have a triangular profile and complementary hollow profiles present between two successive teeth. The two flanks of the ratchet head may have different slopes so that a slope allows the rotation of the telescope in one direction and the other slope prohibits the rotation of the telescope in the second direction. Thus, the geometries of the pawl 1 and the toothing 3a can be defined so as to generate a unidirectional or bi-directional detent so as to adapt to the functionality of the wristwatch and the information indicated by the disc 3 'which is reported on the telescope 3.

Comme vu précédemment, une bague 5 est interposée entre la lunette et la carrure et cette bague présente l'ouverture 5a permettant au cliquet, en particulier à la tête de cliquet, de traverser la bague pour coopérer avec la denture. Avantageusement, l'ouverture présente une forme complémentaire ou au moins partiellement complémentaire à la section de la tête de cliquet (perpendiculairement à l'axe de l'alésage 2a) et permettant d'interdire au cliquet de tourner par rapport à l'axe de l'alésage. Par exemple, l'ouverture peut avoir une forme rectangulaire comme représenté à la figure 4. Ainsi, la découpe 5a formée sur la bague 5 présente également l'avantage d'indexer angulairement le cliquet 1 relativement à la denture 3a de la face inférieure 3b de la lunette 3. Cet agencement permet de simplifier au mieux l'usinage du cliquet 1. Notamment le cliquet peut être globalement cylindrique de révolution et venir se loger dans un alésage 2a cylindrique de révolution.As seen above, a ring 5 is interposed between the bezel and the middle and this ring has the opening 5a allowing the pawl, in particular to the ratchet head, to pass through the ring to cooperate with the toothing. Advantageously, the opening has a shape complementary or at least partially complementary to the section of the pawl head (perpendicularly to the axis of the bore 2a) and making it possible to prevent the pawl from rotating relative to the axis of the ratchet. the bore. For example, the opening may have a rectangular shape as shown in FIG. figure 4 . Thus, the cutout 5a formed on the ring 5 also has the advantage of angularly indexing the pawl 1 relative to the toothing 3a of the lower face 3b of the bezel 3. This arrangement makes it possible to simplify at best the machining of the pawl 1 In particular, the pawl may be generally cylindrical in revolution and come to be housed in a cylindrical bore 2a of revolution.

L'ouverture 5a peut également déboucher au niveau du diamètre intérieur ou du diamètre extérieur de la bague 5.The opening 5a can also lead to the inner diameter or outer diameter of the ring 5.

L'architecture des éléments peut être inversée, le cliquet se trouvant logé dans la lunette et la denture étant solidaire de la carrure.The architecture of the elements can be reversed, the pawl being housed in the bezel and the toothing being secured to the middle part.

Le premier élément d'indexation, le deuxième élément d'indexation et le deuxième élément élastique permettent d'assurer la fonction d'indexation mentionnée plus haut.The first indexing element, the second indexing element and the second elastic element make it possible to provide the indexing function mentioned above.

Le premier élément élastique 4b, 4c, 4d plaque la lunette contre la carrure. Plus exactement, le premier élément élastique prend appui sur la carrure et plaque la bague 5 contre la lunette, celle-ci se trouvant plaquée contre l'anneau d'arrêt 6 qui se trouve lui-même plaqué contre la carrure.The first elastic element 4b, 4c, 4d plates the bezel against the middle part. More exactly, the first elastic element bears on the middle part and plates the ring 5 against the bezel, the latter being pressed against the stop ring 6 which is itself pressed against the middle part.

Le premier élément élastique peut comprendre plusieurs ressorts, notamment un, deux, trois, quatre ressorts hélicoïdaux 4b, 4c, 4d, voire plus de quatre ressorts hélicoïdaux. Les ressorts sont chacun logés au sein d'une découpe ou logement 2b, 2c, 2d réalisé sur le siège annulaire 2i de la carrure 2. Le logement est par exemple un alésage cylindrique dans lequel le ressort peut se déformer librement. Le ressort peut prendre appui au fond du logement et sur une face inférieure de la bague.The first elastic element may comprise several springs, in particular one, two, three, four helical springs 4b, 4c, 4d, or even more than four helical springs. The springs are each housed in a cutout or housing 2b, 2c, 2d formed on the annular seat 2i of the middle part 2. The housing is for example a cylindrical bore in which the spring can be deformed freely. The spring can bear against the bottom of the housing and on a lower face of the ring.

Avantageusement, afin de limiter l'encombrement sur la carrure, les logements 2b, 2c, 2d sont réalisés sur un même rayon, ou sensiblement sur un même rayon, centré sur l'axe de rotation de la lunette relativement à la carrure. Le logement 2a est de préférence également centré sur ce rayon ou sensiblement sur ce rayon. De préférence encore, ces différents logements sont répartis angulairement de manière sensiblement équidistante.Advantageously, in order to limit the bulk on the middle part, the housings 2b, 2c, 2d are made on the same radius, or substantially on the same radius, centered on the axis of rotation of the bezel relative to the middle part. The housing 2a is preferably also centered on this radius or substantially on this radius. More preferably, these different housings are angularly distributed substantially equidistantly.

La bague et/ou la carrure comprennent un élément 2e, 2f; 5b, 5c d'immobilisation en rotation de la bague par rapport à la carrure. Par exemple, l'élément d'immobilisation comprend un ergot 5b, 5c sur la bague coopérant avec un évidement 2e, 2f dans la carrure. Alternativement, l'élément d'immobilisation comprend un ergot dans la carrure coopérant avec un évidement dans la bague.The ring and / or the middle part comprise an element 2e, 2f; 5b, 5c immobilization in rotation of the ring relative to the middle part. For example, the immobilizing element comprises a lug 5b, 5c on the ring cooperating with a recess 2e, 2f in the middle part. Alternatively, the immobilizing element comprises a lug in the middle part cooperating with a recess in the ring.

Ainsi, lorsqu'on tourne la lunette, celle-ci frotte, au niveau des sommets des dents 3a, sur la bague 5. Elle frotte également sur l'anneau d'arrêt (ou l'anneau d'arrêt frotte sur la carrure). Ce frottement se fait avec une mise en pression de la lunette contre la carrure qui provoque des efforts de frottement générant un couple mécanique de friction s'opposant à la rotation de la lunette.Thus, when turning the telescope, the latter rubs, at the tops of the teeth 3a, on the ring 5. It also rubs on the stop ring (or the stop ring rubs on the middle part) . This friction is done with a pressure of the bezel against the middle part which causes friction forces generating a mechanical torque of friction opposing the rotation of the bezel.

Le premier élément élastique et la bague permettent d'assurer la fonction de friction mentionnée plus haut.The first elastic element and the ring provide the friction function mentioned above.

En particulier la bague et son ouverture permettent de dissocier les fonctions d'indexation et de friction. Les paramètres de fonctionnement de ces fonctions peuvent ainsi être réglés indépendamment les uns des autres.In particular, the ring and its opening make it possible to separate the indexing and friction functions. The operating parameters of these functions can thus be set independently of each other.

Ainsi, il est possible de monter la lunette à rotation sur la carrure avec un couple de friction particulièrement homogène par l'entremise des ressorts et de la bague faisant l'interface entre la carrure et la face inférieure de la lunette. Le centrage de la lunette est également garanti indépendamment de son positionnement vertical : la lunette 3 est centrée par le biais de son diamètre intérieur 3c qui est conformé pour coopérer avec la portion 2h de la carrure 2. Son maintien vertical est, quant-à-lui, défini de manière conventionnelle par le biais de l'anneau 6 qui est ici directement rapporté sur la carrure 2. Par ailleurs, avec une telle boîte, on peut minimiser la section annulaire de la face inférieure de la lunette.Thus, it is possible to mount the rotating bezel on the middle with a particularly uniform friction torque through the springs and the ring making the interface between the middle and the underside of the bezel. The centering of the telescope is also guaranteed independently of its vertical positioning: the telescope 3 is centered by means of its inside diameter 3c which is shaped to cooperate with the portion 2h of the caseband 2. Its vertical retention is, as for it, conventionally defined through the ring 6 which is here directly attached to the middle part 2. Moreover, with such a box, we can minimize the annular section of the underside of the bezel.

Un deuxième mode de réalisation d'une boîte de montre 19 est décrit ci-après en référence aux figures 5 à 7.A second embodiment of a watch case 19 is described below with reference to Figures 5 to 7 .

Dans les illustrations de ce deuxième mode de réalisation, les éléments identiques, similaires ou ayant la même fonction que ceux du premier mode de réalisation présentent des références numériques auxquelles on a ajouté une dizaine. Ainsi, par exemple, la boîte et la carrure du deuxième mode de réalisation sont référencées « 19 » et « 12 » alors que la boîte et la carrure du premier mode de réalisation sont référencées « 9 » et « 2 ».In the illustrations of this second embodiment, the elements that are identical, similar or have the same function as those of the first embodiment have numerical references to which a dozen have been added. Thus, for example, the box and the middle part of the second embodiment are referenced "19" and "12" while the box and the middle part of the first embodiment are referenced "9" and "2".

Le deuxième mode de réalisation diffère du premier mode de réalisation uniquement par la réalisation du premier élément élastique.The second embodiment differs from the first embodiment only in the production of the first elastic element.

Dans ce deuxième mode de réalisation, le premier élément élastique est constitué par la bague 15 elle-même. La bague est une rondelle élastique. La bague fait office de rondelle ressort et permet ainsi de générer un couple de freinage homogène à la lunette indépendamment de tout ressort additionnel. La bague est fixée à la carrure au niveau de son diamètre intérieur 15d et est en appui contre la lunette au niveau de son diamètre extérieur 15e. Tout comme dans le premier mode de réalisation, la bague 15 comprend au moins un élément d'immobilisation, par exemple un ergot 15b, prévu pour coopérer avec un élément d'immobilisation 12e de la carrure 12.In this second embodiment, the first elastic element is constituted by the ring 15 itself. The ring is an elastic washer. The ring serves as a spring washer and thus allows to generate a homogeneous braking torque to the bezel regardless of any additional spring. The ring is fixed to the middle part at its inside diameter 15d and bears against the bezel at its outer diameter 15e. As in the first embodiment, the ring 15 comprises at least one immobilizing element, for example a pin 15b, designed to cooperate with an immobilizing element 12e of the caseband 12.

La bague 15 est plaquée à l'encontre d'une partie du siège annulaire de la carrure 12 par un anneau 17 au niveau de son diamètre intérieur. La localisation verticale de la lunette 13 est définie par un anneau 16 de telle sorte que, une fois la lunette montée sur la carrure, sa face inférieure 13b vienne en contact avec la bague 15, au niveau de son diamètre extérieur 15d de manière à la faire fléchir dans une gorge 12g prévue sur le siège annulaire de la carrure. Ainsi, la déformation de la bague 15 permet de plaquer élastiquement la lunette 13 à l'encontre de la carrure 12 par l'intermédiaire de l'anneau 16.The ring 15 is pressed against a portion of the annular seat of the middle part 12 by a ring 17 at its inside diameter. The vertical location of the telescope 13 is defined by a ring 16 so that, once the bezel is mounted on the caseband, its lower face 13b comes into contact with the ring 15, at its outer diameter 15d so as to bend in a groove 12g provided on the annular seat of the middle part. Thus, the deformation of the ring 15 makes it possible elastically pressing the bezel 13 against the middle part 12 by means of the ring 16.

Le couple de friction est bien sûr ajustable en fonction de l'épaisseur de la bague et de sa section active qui est définie par l'étendue radiale de la gorge 12g.The friction torque is of course adjustable depending on the thickness of the ring and its active section which is defined by the radial extent of the groove 12g.

Tout comme dans le premier mode de réalisation, une découpe 15a est prévue sur la bague 15 de façon à ce que le cliquet 11, disposé au sein de la carrure 12, puisse venir en contact avec la denture de chant 13a qui est située sur un plan distinct de la face inférieure 13b.As in the first embodiment, a cutout 15a is provided on the ring 15 so that the pawl 11 disposed within the middle part 12 can come into contact with the edge toothing 13a which is located on a separate plan of the underside 13b.

En variante, la bague peut être fixée à la carrure, respectivement à la lunette, au niveau de son diamètre extérieur et peut être en appui contre la lunette, respectivement contre la carrure au niveau de son diamètre intérieur.Alternatively, the ring may be attached to the middle part, respectively to the bezel, at its outer diameter and may bear against the bezel, respectively against the middle at its inner diameter.

Un troisième mode de réalisation d'une boîte de montre 29 est décrit ci-après en référence à la figure 8.A third embodiment of a watch case 29 is described below with reference to the figure 8 .

Dans l'illustration de ce troisième mode de réalisation, les éléments identiques, similaires ou ayant la même fonction que ceux du premier mode de réalisation, présentent des références numériques auxquelles on a ajouté deux dizaines. Ainsi, par exemple, la boîte et la carrure du deuxième mode de réalisation sont référencées « 29 » et « 22 » alors que la boîte et la carrure du premier mode de réalisation sont référencées « 9 » et « 2 ».In the illustration of this third embodiment, elements identical, similar or having the same function as those of the first embodiment, have numerical references to which two tens have been added. Thus, for example, the box and the middle part of the second embodiment are referenced "29" and "22" while the box and the middle part of the first embodiment are referenced "9" and "2".

Le troisième mode de réalisation diffère du premier mode de réalisation uniquement par la réalisation du premier élément élastique.The third embodiment differs from the first embodiment only in the production of the first elastic element.

Dans ce troisième mode de réalisation, le premier élément élastique est constitué par la bague 25 elle-même. La bague fait office de rondelle ressort et permet ainsi de générer un couple de freinage homogène à la lunette indépendamment de tout ressort additionnel. La bague (25) présente une forme tronconique en l'absence de sollicitation. Elle est par exemple constituée par une rondelle de type « Belleville ». La bague est montée en appui contre la carrure, notamment dans une gorge 22g, et en appui contre la lunette, notamment contre la face inférieure 23b de la lunette. Ainsi, la rondelle peut être disposée au sein de la gorge 22g formée sur le siège annulaire de la carrure et mise sous tension par la face inférieure 23b de la lunette 23 qui est positionnée verticalement de façon à générer le couple de friction escompté à la lunette. La géométrie tronconique de la bague 25 permet de disposer la denture de chant 23a sur la face inférieure 23b de la lunette 23. Le couple de freinage est bien sûr ajustable en fonction de l'épaisseur de la bague et de sa section. Comme dans les autres modes de réalisation, une découpe est prévue sur la bague 25 de façon à ce que le cliquet, disposé au sein de la carrure 22, puisse venir en contact avec la denture de chant 23a. Tout comme dans les deux premiers modes de réalisation, la bague 15 comprend au moins un élément d'immobilisation, par exemple un ergot 25b, prévu pour coopérer avec un élément d'immobilisation 22e de la carrure 22.In this third embodiment, the first elastic element is constituted by the ring 25 itself. The ring serves as a spring washer and thus allows to generate a homogeneous braking torque to the bezel regardless of any additional spring. The ring (25) has a frustoconical shape in the absence of stress. It is for example constituted by a washer type "Belleville". The ring is mounted bearing against the middle part, in particular in a groove 22g, and bearing against the bezel, in particular against the underside 23b of the bezel. Thus, the washer can be disposed within the groove 22g formed on the annular seat of the middle and energized by the underside 23b of the bezel 23 which is positioned vertically so as to generate the expected friction torque to the bezel . The frustoconical geometry of the ring 25 makes it possible to arrange the edge toothing 23a on the lower face 23b of the bezel 23. The braking torque is of course adjustable as a function of the thickness of the ring and its section. As in the other embodiments, a cutout is provided on the ring 25 so that the pawl, disposed within the middle part 22, can come into contact with the toothing 23a. As in the first two embodiments, the ring 15 comprises at least one immobilizing element, for example a lug 25b, designed to cooperate with an immobilizing element 22e of the middle part 22.

En variante, tout comme dans le deuxième mode de réalisation, la bague peut être fixée à la carrure, respectivement à la lunette, au niveau de son diamètre extérieur et peut être en appui contre la lunette, respectivement contre la carrure au niveau de son diamètre intérieur.Alternatively, as in the second embodiment, the ring may be attached to the middle part, respectively to the bezel, at its outer diameter and may bear against the bezel, respectively against the middle part at its diameter. inside.

Les différents modes de réalisation décrits précédemment peuvent être utilisés pour réaliser une montre, notamment une montre bracelet.The various embodiments described above can be used to make a watch, including a wristwatch.

Dans les différents modes de réalisation, la bague et/ou la carrure peut comprendre un élément d'immobilisation en rotation de la bague par rapport à la carrure. L'élément d'immobilisation peut comprendre un ergot sur la bague coopérant avec un évidement dans la carrure. Alternativement, l'élément d'immobilisation peut comprendre un ergot dans la carrure coopérant avec un évidement dans la bague.In the various embodiments, the ring and / or the middle part may comprise an immobilizing element in rotation of the ring relative to the middle part. The immobilizing element may comprise a lug on the ring cooperating with a recess in the middle part. Alternatively, the immobilizing element may comprise a lug in the middle part cooperating with a recess in the ring.

Dans les différents modes de réalisation, un cliquet peut être disposé dans un logement réalisé au sein de la carrure.In the various embodiments, a pawl can be arranged in a housing made within the middle part.

La boîte de montre selon l'invention permet donc de fournir des fonctions friction et indexation indépendantes tout en limitant l'étendue surfacique nécessaire à leur mise en oeuvre, en particulier la section du siège annulaire de la carrure peut être minimisée. Le nombre de composants nécessaires à la mise en oeuvre peut aussi être limité. En particulier, on peut maximiser le diamètre extérieur de la glace en regard du diamètre total de la carrure et ainsi permettre plus de liberté dans la recherche esthétique.The watch case according to the invention therefore makes it possible to provide independent friction and indexing functions while limiting the surface area required for their implementation, in particular the section of the annular seat of the middle part can be minimized. The number of components required for implementation can also be limited. In particular, it is possible to maximize the outer diameter of the ice with respect to the total diameter of the middle part and thus allow more freedom in aesthetic research.

Claims (15)

  1. A watch case (9; 19; 29) comprising:
    - a middle (2; 12; 22),
    - a bezel (3; 13; 23) mounted to turn on the middle,
    - a ring (5; 15; 25) interfacing between the middle and the bezel, and
    - a first indexing element (1; 11) and a second indexing element (3a; 13a; 23a) which collaborate in such a way as to index the bezel in position relative to the middle,
    the watch case comprising a first elastic element (4b, 4c, 4d; 15; 25) adapted for pressing the bezel against the middle and a second elastic element (4a) adapted for pressing the first indexing element against the second indexing element (3a; 13a; 23a), the ring comprising an opening (5a; 15a) through which the first or the second indexing element is arranged.
  2. The watch case as claimed in the preceding claim, wherein the first elastic element is mounted in one or more housings (2b, 2c, 2d) produced in the middle.
  3. The watch case as claimed in either of the preceding claims, wherein the first elastic element comprises at least one spring, notably at least one helical spring (4b, 4c, 4d).
  4. The watch case as claimed in one of the preceding claims, wherein the first indexing element comprises a pawl (1; 11) and/or wherein the second indexing element comprises teeth (3a; 13a; 23a).
  5. The watch case as claimed in claim 3 or 4, wherein the pawl and/or the teeth are configured in such a way as to provide indexing that allows the bezel to move in one direction or in both directions relative to the middle.
  6. The watch case as claimed in one of the preceding claims, wherein the second indexing element is secured to the bezel.
  7. The watch case as claimed in the preceding claim, wherein the opening (5a) comprises a first shaping collaborating with a second shaping of the pawl so as to prevent the pawl from turning.
  8. The watch case as claimed in one of the preceding claims, wherein the second elastic element comprises a helical spring (4a), notably a helical spring mounted in a housing (2a) in the middle.
  9. The watch case as claimed in one of the preceding claims, wherein the opening (15a) opens into the inside diameter or onto the outside diameter of the ring (15).
  10. The watch case as claimed in one of the preceding claims, wherein the ring (15; 25) is a spring washer, the spring washer constituting or forming part of the first elastic element.
  11. The watch case as claimed in the preceding claim, wherein the ring (25) when unloaded has a frustoconical shape.
  12. The watch case as claimed in the preceding claim, wherein the ring (25) is mounted bearing against the middle, notably in a groove (22g), and bearing against the bezel, notably against the underside (23b) of the bezel.
  13. The watch case as claimed in one of claims 1 through 10, wherein the ring (15) is fixed to the middle or, respectively, to the bezel, at its inside diameter (15d) and bears against the bezel or, respectively, against the middle, at its outside diameter (15e).
  14. The watch case as claimed in one of claims 1 through 10, wherein the ring is fixed to the middle or, respectively, to the bezel, at its outside diameter and bears against the bezel or, respectively, against the middle, at its inside diameter.
  15. A watch, particularly a wrist watch, comprising a watch case as claimed in one of the preceding claims.
EP12405018.8A 2012-02-06 2012-02-06 Watch case provided with a rotatable, indexed bezel Active EP2624076B1 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
EP12405018.8A EP2624076B1 (en) 2012-02-06 2012-02-06 Watch case provided with a rotatable, indexed bezel
JP2013017988A JP6087160B2 (en) 2012-02-06 2013-02-01 Watch case with orientable index bezel
US13/759,710 US9188959B2 (en) 2012-02-06 2013-02-05 Watch case with orientable and indexed bezel
CN201310079969.8A CN103246197B (en) 2012-02-06 2013-02-05 There is the watchcase of the orientable outer ring with transposition

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP12405018.8A EP2624076B1 (en) 2012-02-06 2012-02-06 Watch case provided with a rotatable, indexed bezel

Publications (3)

Publication Number Publication Date
EP2624076A1 EP2624076A1 (en) 2013-08-07
EP2624076A8 EP2624076A8 (en) 2013-10-16
EP2624076B1 true EP2624076B1 (en) 2014-12-31

Family

ID=45592295

Family Applications (1)

Application Number Title Priority Date Filing Date
EP12405018.8A Active EP2624076B1 (en) 2012-02-06 2012-02-06 Watch case provided with a rotatable, indexed bezel

Country Status (4)

Country Link
US (1) US9188959B2 (en)
EP (1) EP2624076B1 (en)
JP (1) JP6087160B2 (en)
CN (1) CN103246197B (en)

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US11625006B2 (en) 2019-03-14 2023-04-11 Montres Tudor SA Rotating bezel blocking device

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US11625006B2 (en) 2019-03-14 2023-04-11 Montres Tudor SA Rotating bezel blocking device

Also Published As

Publication number Publication date
US20130201804A1 (en) 2013-08-08
EP2624076A8 (en) 2013-10-16
EP2624076A1 (en) 2013-08-07
CN103246197A (en) 2013-08-14
JP6087160B2 (en) 2017-03-01
CN103246197B (en) 2016-07-13
US9188959B2 (en) 2015-11-17
JP2013160764A (en) 2013-08-19

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