EP1970779A1 - Watch and casing method - Google Patents

Watch and casing method Download PDF

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Publication number
EP1970779A1
EP1970779A1 EP08152818A EP08152818A EP1970779A1 EP 1970779 A1 EP1970779 A1 EP 1970779A1 EP 08152818 A EP08152818 A EP 08152818A EP 08152818 A EP08152818 A EP 08152818A EP 1970779 A1 EP1970779 A1 EP 1970779A1
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EP
European Patent Office
Prior art keywords
watch
casing
movement
annular seal
elements
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Granted
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EP08152818A
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German (de)
French (fr)
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EP1970779B1 (en
Inventor
Frédéric Bôle
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Richemont International SA
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Richemont International SA
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Publication of EP1970779A1 publication Critical patent/EP1970779A1/en
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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
    • G04B37/00—Cases
    • G04B37/04—Mounting the clockwork in the case; Shock absorbing mountings
    • G04B37/05—Fixed mountings for pocket or wrist watches
    • G—PHYSICS
    • G04—HOROLOGY
    • G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
    • G04B37/00—Cases
    • G04B37/08—Hermetic sealing of openings, joints, passages or slits
    • G04B37/081—Complete encasings for wrist or pocket watches also comprising means for hermetic sealing of the winding stem and crown
    • G—PHYSICS
    • G04—HOROLOGY
    • G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
    • G04B37/00—Cases
    • G04B37/08—Hermetic sealing of openings, joints, passages or slits
    • G04B37/11—Hermetic sealing of openings, joints, passages or slits of the back cover of pocket or wrist watches

Definitions

  • the present invention relates to a watch and a method of nesting movement in a watch case.
  • the watch movements are usually held in the watch case by means of a casing ring.
  • the casing ring can have various shapes, as long as it surrounds the movement and must be placed inside the middle of the box. Screws or flanges make it possible to maintain the movement in the circle and to maintain the circle in the watch case.
  • GB1486059 describes a watch case in which the movement is maintained by compressing the annular bottom seal which also serves to prevent water infiltration between the bottom and the middle part.
  • This solution is not optimal; the same joint must fulfill two completely different constraints and is difficult to optimize for each of these functions.
  • the bottom seal is generally free when the bottom of the box is open; the movement is then no longer held at all, and may exit completely from the box during unscrewing.
  • CH331282 describes a watch case in which a range of movement is taken between the bottom and the middle part. The maintenance of the movement depends on the tightening of the bottom, which is not optimal.
  • DE3100791 discloses a watch having a first seal for sealing the bottom and a second seal for exerting pressure between the casing ring and the movement. The movement is maintained only against the bottom by a single circle, and is poorly protected from shocks.
  • CH534674 discloses a watch case in which the movement is held between two casing members compressed against each other with a leaf spring supported against the bottom. This spring is difficult to place. When the bottom is open, the spring tends to escape so that the stacking of the casing rings is undone. The assembly and maintenance of this watch are therefore delicate. Moreover, the two circles are not in support against each other and their spacing is difficult to control.
  • CH564802 describes another watch case in which the pressure between two casing elements maintaining the movement is determined by the depth of screwing of the bottom. The movement may be damaged if the bottom is over-screwed, and is not held firmly when the bottom is unscrewed. This solution is not optimal.
  • An object of the present invention is therefore to provide a watch and a casing method free from the limitations of watches and known methods.
  • the qualifiers "high” or “superior” refer to a watch placed on its bottom, in the position illustrated in the figure; conversely, the adjectives "low” and “lower” denote the portions of the watch oriented towards the bottom of the watch and the bottom of the figure.
  • the “axial” direction is perpendicular to the plane of the dial and the plate.
  • a “radial” direction is parallel to the dial or platinum of the movement.
  • the watch shown in partial section on the figure 1 comprises a middle 6, an ice 8 and a bottom 7.
  • a mechanical or electronic movement 5 is maintained in the middle by casing elements 1, 2, 3 described below.
  • a dial 9 visible through the glass 8 conceals at least part of the movement.
  • Other elements of the watch for example the hands, the winding stem, the push buttons, the bracelet horns, the bracelet, etc. are not visible on this partial section along the axis 12 o'clock - 6 o'clock or have not been represented for the sake of simplification.
  • the casing elements comprise a first casing ring 1 bearing against a portion 60 of the middle part 6.
  • the portion 60 is constituted here by an annular bearing parallel to the plane of the dial.
  • the dial is compressed between the casing ring 1 and another scope 63 of the middle part.
  • the first casing ring can be made of any material, for example in a metal such as rhodium-plated brass or in a more easily compressible synthetic material.
  • the movement 5 comprises an annular peripheral rib 50 bearing against a bearing surface 11 of the first casing ring.
  • the rib 50 and the bearing 11 may be continuous all around the movement, or consist of discontinuous segments of equal or unequal lengths.
  • the axial position of the movement 5 in the middle part 6 is determined by the axial position of the bearing surface 60 and by the distance between the upper face of the first casing ring 1 and the bearing surface 11.
  • a second casing ring 2 is superimposed under the first casing ring so as to support the rib 50 of the movement against the scope 11 of the first casing ring.
  • the upper face of the second circle 2 defines with the scope 11 of the first circle a groove in which the rib 50 is inserted.
  • the movement 5 is caught between the two circles 1, 2 when the watch is assembled, and can no longer move axially.
  • the two casing rings are in direct abutment against each other so that their spacing is perfectly controlled; it is thus possible to ensure a precise and play-free holding of the span 11 between the corresponding support portions of the two circles.
  • the upper face of the second circle 2 bears against the lower face of the first circle 1 prevents any risk of tilting or pivoting circles inside the box.
  • the outer diameter of the second casing ring 2 is preferably slightly greater than the outside diameter of the first casing ring 1; the centering of the movement in the box is therefore ensured only by the contact between the outer faces of the second circle 2 and the middle part 6.
  • the axial position of the movement depends, as has been said, on the first circle against which movement is supported.
  • the clearance between the first casing ring 1 and the inside diameter of the middle part 6 is therefore greater than the clearance between the second circle and the middle part, but nevertheless small enough to prevent any vibration of the first circle 1 in its own plane.
  • the second ring 2 can be machined from metal, for example rhodium-plated brass, or injected into a synthetic material. Circles 1 and 2 in different materials can also be imagined.
  • the second casing ring 2 is provided with a mark 22, in this example a hole on the lower surface of the circle, to allow the operator to orient it approximately in the middle part.
  • the passage hole for the winding stem (not shown) is also a polarizer which forces the radial alignment of the movement with the second circle 2 and with the middle part.
  • a first annular seal 3 (o-ring, o-ring seal) housed in a groove 30 ensures sufficient compression of the two casing rings between them and against the movement, even when the different parts are not machined with perfect tolerances.
  • the annular seal 3 also makes it possible to center the second casing ring with respect to the middle part, and to absorb shocks.
  • the seal has for example a circular section and may be made of an elastomeric material, PTFE, silicone-based or other elastically compressible material.
  • the groove 30 has a trapezoidal section, the base of the trapezium being shorter than its top to prevent the seal from coming out easily when the bottom 7 is open.
  • the side walls of the groove are constituted by a portion 21 of the second circle 2 and a portion 62 of the middle part.
  • the upper face of the groove is constituted by another portion 20 on the lower face of the second circle, while the lower face of this groove is closed by a rib 71 projecting on the upper face of the bottom 7 when it is screwed .
  • the seal 3 is therefore wedged between the three elements 2, 6 and 7.
  • the support of the seal 3 against the oblique portion 62 of the middle part also allows to exert a vertical pressure on the two circles 2, 3 even when the bottom is open. This avoids the risk of accidental disassembly of the stack when the bottom is open.
  • the seal 3 remains at the bottom of the groove 30 when screwing the bottom, and is not rotated with the bottom.
  • a segment of the groove 30 is provided with a not shown olivette, that is to say a chamfer that allows to introduce a tweezers or other tool between the seal 3 the second circle 2 to extract the seal 3 to remove the casing ring and movement.
  • the depth of screwing of the bottom determines the compression of the first annular seal 3 in the groove 30.
  • the bottom 7 is screwed by means of a peripheral thread 70 engaged in a tapping of the middle part; funds screwed up with several discrete screws or clip-on funds can also be used.
  • the shape of the bottom 6, the middle part 6 and / or the thread 70 makes it possible to limit the depth of screwing of the bottom and to avoid the risk of too much crushing of the joint 3 and the casing elements.
  • Sealing is ensured by a second O-ring annular seal, preferably a ring-shaped seal in an elastically compressible material, and is compressed between the bottom 7 and the middle part 6.
  • the second seal 4 is housed in a machined groove in the middle, and therefore does not necessarily require a thick bottom.
  • the use of two separate joints makes it possible to dissociate the sealing stresses and the stresses associated with the axial and radial positioning of the movement in the watch.
  • the illustrated embodiment further employs two economic and easy-to-use circular section annular seals.
  • the movement 5 is fitted into the watch by first threading the first circle 1 over the movement 5, until it bears against the projection 50.
  • the dial 9 is then placed on the movement, by inserting his feet in holes provided for this purpose on the upper surface of the movement.
  • the first casing ring 1 is then wedged between the underside of the dial and the projection 50. It is then proceeded to the laying of the needles.
  • the assembly is then inserted in the middle part 6 by the bottom, until the first circle 1 bears against the span 60 provided for this purpose in the middle part 6.
  • the movement is held against the first casing ring 1 by inserting the second casing ring 2 below the first circle 1 and the movement. It is provisionally aligned with the circle 2 by matching the mark 22 with a corresponding mark on the movement and / or on the middle part, then definitively by passing the winding stem through a non-illustrated passage provided for this purpose through the second casing ring 2.
  • the annular seal 3 is then inserted by forcing it with a tool in the groove 30. It makes it possible to maintain the second circle axially and radially, and therefore the movement that can be extracted or moved only by pulling it with a force greater than the friction force of the annular seal 3 against the inner face of the middle part.
  • the trapezoidal shape of the groove causes additional compression of the seal 3 when the second casing ring is pulled down the watch, so that extraction of the movement without previously removing the seal 3 is difficult or even impossible.
  • the seal 4 is then inserted into a groove provided for this purpose under the lower face of the middle part, then the bottom 7 is screwed under the middle part.
  • the rib 70 projecting from the upper face of the bottom 7 closes the groove 30 by compressing the seal 3 at the bottom of this groove.
  • the natural elasticity of the seal tends to push the two casing rings and the movement against the top, even when the bottom 7 is not fully screwed. The axial position of the movement is thus independent of the tightening torque of the bottom.
  • the present invention allows an extremely simple, fast, stable, robust and sealed casing without the need for screws or flanges.
  • the present invention also relates to the first and second casing rings and the frames adapted to the method of the invention.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electric Clocks (AREA)

Abstract

The watch has a casing element including casing rings (1, 2) permitting an electronic or mechanical movement (5) to be maintained in a middle (6). A frame (9) hides the movement partially, and is visible through a glass (8). The rings are superposed and compressed between a disc face (60) of the middle and a rib (71) that is connected to a back (7). An annular elastic seal (3) compresses the disc face between the rings, and another annular elastic seal (4) avoids infiltration of water between the back and the middle. An independent claim is also included for a method of casing a movement of a watch in a middle.

Description

Domaine techniqueTechnical area

La présente invention concerne une montre et un procédé d'emboîtement du mouvement dans une boîte de montre.The present invention relates to a watch and a method of nesting movement in a watch case.

Etat de la techniqueState of the art

Les mouvements de montre sont habituellement maintenus dans la boîte de montre au moyen d'un cercle d'emboîtage. Selon la forme de mouvement et de la boîte, le cercle d'emboîtage peut avoir diverses formes, dans la mesure où il entoure le mouvement et doit être placé à l'intérieur de la carrure de la boîte. Des vis ou des brides permettent d'assurer le maintien du mouvement dans le cercle et le maintien du cercle dans la boîte de montre.The watch movements are usually held in the watch case by means of a casing ring. Depending on the form of movement and the box, the casing ring can have various shapes, as long as it surrounds the movement and must be placed inside the middle of the box. Screws or flanges make it possible to maintain the movement in the circle and to maintain the circle in the watch case.

Ce procédé présente un certain nombre d'inconvénients. Le maintien nécessite une bonne maîtrise du couple de serrage des vis, et un usinage très précis des brides. Les boîtes de montre lourdes peuvent cependant être soumises à des chocs importants ou à des vibrations qui entraînent à terme un desserrage des vis voire une rupture des brides ou des vis. Le risque de desserrage est parfois limité en collant les vis, ce qui a l'inconvénient de compliquer le démontage. Enfin, l'emboîtage au moyen de vis ou de brides nécessite un temps important et une manipulation délicate.This process has a number of disadvantages. The maintenance requires good control of the tightening torque of the screws, and very precise machining of the flanges. Heavy watch cases, however, can be subject to heavy shocks or vibrations that eventually lead to loosening of the screws or even rupture of the flanges or screws. The risk of loosening is sometimes limited by gluing the screws, which has the disadvantage of complicating the disassembly. Finally, the casing by means of screws or flanges requires a long time and delicate handling.

GB1486059 décrit une boîte de montre dans laquelle le mouvement est maintenu grâce à la compression du joint de fond annulaire qui sert aussi à empêcher les infiltrations d'eau entre le fond et la carrure. Cette solution est peu optimale ; le même joint doit remplir deux contraintes totalement différentes et est difficile à optimiser pour chacune de ces fonctions. Par ailleurs, le joint de fond est généralement libre lorsque le fond de la boîte est ouvert; le mouvement n'est alors plus du tout tenu, et risque de sortir complètement de la boîte lors du dévissage. GB1486059 describes a watch case in which the movement is maintained by compressing the annular bottom seal which also serves to prevent water infiltration between the bottom and the middle part. This solution is not optimal; the same joint must fulfill two completely different constraints and is difficult to optimize for each of these functions. Furthermore, the bottom seal is generally free when the bottom of the box is open; the movement is then no longer held at all, and may exit completely from the box during unscrewing.

CH331282 décrit une boîte de montre dans laquelle une portée du mouvement est prise entre le fond et la carrure. Le maintien du mouvement dépend du serrage du fond, ce qui est peu optimal. CH331282 describes a watch case in which a range of movement is taken between the bottom and the middle part. The maintenance of the movement depends on the tightening of the bottom, which is not optimal.

DE3100791 décrit une montre comportant un premier joint pour étanchéifier le fond et un deuxième joint pour exercer une pression entre le cercle d'emboîtage et le mouvement. Le mouvement est maintenu uniquement contre le bas par un cercle unique, et est mal protégé des chocs. DE3100791 discloses a watch having a first seal for sealing the bottom and a second seal for exerting pressure between the casing ring and the movement. The movement is maintained only against the bottom by a single circle, and is poorly protected from shocks.

On connaît par ailleurs des boîtes de montre dans lesquelles le mouvement est maintenu par compression entre deux éléments d'emboîtage distincts. Un maintien ferme et précis est uniquement possible si la distance entre les deux éléments d'emboîtage est parfaitement contrôlée, ce qui est difficile à garantir lorsque les deux éléments ne sont pas en appui l'un contre l'autre.Also known are watch cases in which the movement is maintained by compression between two separate casing elements. Firm and precise support is only possible if the distance between the two casing elements is perfectly controlled, which is difficult to guarantee when the two elements are not in contact against each other.

CH534674 décrit une boîte de montre dans laquelle le mouvement est maintenu entre deux éléments d'emboîtage comprimés l'une contre l'autre avec un ressort à lamelle appuyé contre le fond. Ce ressort est difficile à placer. Lorsque le fond est ouvert, le ressort tend à s'échapper en sorte que l'empilement des cercles d'emboîtage se défait. L'assemblage et la maintenance de cette montre sont donc délicats. Par ailleurs, les deux cercles ne sont pas en appui l'un contre l'autre et leur écartement est donc difficile à contrôler. CH534674 discloses a watch case in which the movement is held between two casing members compressed against each other with a leaf spring supported against the bottom. This spring is difficult to place. When the bottom is open, the spring tends to escape so that the stacking of the casing rings is undone. The assembly and maintenance of this watch are therefore delicate. Moreover, the two circles are not in support against each other and their spacing is difficult to control.

CH564802 décrit une autre boîte de montre dans laquelle la pression entre deux éléments d'emboîtage maintenant le mouvement est déterminée par la profondeur de vissage du fond. Le mouvement peut être endommagé si le fond est trop vissé, et n'est pas maintenu fermement lorsque le fond est dévissé. Cette solution est peu optimale. CH564802 describes another watch case in which the pressure between two casing elements maintaining the movement is determined by the depth of screwing of the bottom. The movement may be damaged if the bottom is over-screwed, and is not held firmly when the bottom is unscrewed. This solution is not optimal.

Bref résumé de l'inventionBrief summary of the invention

Un but de la présente invention est donc de proposer une montre et un procédé d'emboîtage exempt des limitations des montres et des procédés connus.An object of the present invention is therefore to provide a watch and a casing method free from the limitations of watches and known methods.

Selon l'invention, ces buts sont atteints au moyen des éléments des revendications indépendantes, des modes de réalisation préférentiels étant en outre indiqués dans les revendications dépendantes.According to the invention, these objects are achieved by means of the elements of the independent claims, preferential embodiments being further indicated in the dependent claims.

Brève description des dessinsBrief description of the drawings

Des exemples de mise en oeuvre de l'invention sont indiqués dans la description illustrée par l'unique figure annexée qui montre une coupe radiale d'une partie de montre, selon l'axe 12 heures-6 heures.Examples of implementation of the invention are indicated in the description illustrated by the single appended figure which shows a radial section of a part of a watch, along the axis 12 o'clock-6 o'clock.

Exemple(s) de mode de réalisation de l'inventionExample (s) of embodiment of the invention

Dans la suite de la description et des revendications, les qualificatifs « haut » ou « supérieur » se réfèrent à une montre posée sur son fond, dans la position illustrée sur la figure ; inversement, les adjectifs « bas » et « inférieur » désignent les portions de la montre orientées vers le fond de la montre et le bas de la figure. La direction « axiale » est perpendiculaire au plan du cadran et de la platine. Une direction « radiale » est en revanche parallèle au cadran ou à la platine du mouvement.In the remainder of the description and the claims, the qualifiers "high" or "superior" refer to a watch placed on its bottom, in the position illustrated in the figure; conversely, the adjectives "low" and "lower" denote the portions of the watch oriented towards the bottom of the watch and the bottom of the figure. The "axial" direction is perpendicular to the plane of the dial and the plate. On the other hand, a "radial" direction is parallel to the dial or platinum of the movement.

La montre illustrée en coupe partielle sur la figure 1 comporte une carrure 6, une glace 8 et un fond 7. Un mouvement mécanique ou électronique 5 est maintenu dans la carrure par des éléments d'emboîtage 1, 2, 3 décrits plus bas. Un cadran 9 visible à travers la glace 8 dissimule au moins en partie le mouvement. D'autres éléments de la montre, par exemple les aiguilles, la tige de remontoir, les boutons-poussoirs, les cornes de bracelet, le bracelet, etc ne sont pas visibles sur cette coupe partielle selon l'axe 12 heures - 6 heures ou n'ont pas été représentés par souci de simplification.The watch shown in partial section on the figure 1 comprises a middle 6, an ice 8 and a bottom 7. A mechanical or electronic movement 5 is maintained in the middle by casing elements 1, 2, 3 described below. A dial 9 visible through the glass 8 conceals at least part of the movement. Other elements of the watch, for example the hands, the winding stem, the push buttons, the bracelet horns, the bracelet, etc. are not visible on this partial section along the axis 12 o'clock - 6 o'clock or have not been represented for the sake of simplification.

Les éléments d'emboîtage comportent un premier cercle d'emboîtage 1 en appui contre une portion 60 de la carrure 6. La portion 60 est constituée ici par une portée annulaire parallèle au plan du cadran. Le cadran est comprimé entre le cercle d'emboîtage 1 et une autre portée 63 de la carrure. Le premier cercle d'emboîtage peut être réalisé dans n'importe quel matériau, par exemple dans un métal tel que le laiton rodié ou dans un matériau synthétique plus facilement compressible.The casing elements comprise a first casing ring 1 bearing against a portion 60 of the middle part 6. The portion 60 is constituted here by an annular bearing parallel to the plane of the dial. The dial is compressed between the casing ring 1 and another scope 63 of the middle part. The first casing ring can be made of any material, for example in a metal such as rhodium-plated brass or in a more easily compressible synthetic material.

Le mouvement 5 comporte une nervure périphérique annulaire 50 en appui contre une portée 11 du premier cercle d'emboîtage. La nervure 50 et la portée 11 peuvent être continues tout autour du mouvement, ou être constituées de segments discontinus de longueurs égales ou inégales. La position axiale du mouvement 5 dans la carrure 6 est déterminée par la position axiale de la portée 60 et par la distance entre la face supérieure du premier cercle d'emboîtage 1 et la portée 11.The movement 5 comprises an annular peripheral rib 50 bearing against a bearing surface 11 of the first casing ring. The rib 50 and the bearing 11 may be continuous all around the movement, or consist of discontinuous segments of equal or unequal lengths. The axial position of the movement 5 in the middle part 6 is determined by the axial position of the bearing surface 60 and by the distance between the upper face of the first casing ring 1 and the bearing surface 11.

Un deuxième cercle d'emboîtage 2 vient se superposer sous le premier cercle d'emboîtage de manière à appuyer la nervure 50 du mouvement contre la portée 11 du premier cercle d'emboîtage. Ainsi, la face supérieure du deuxième cercle 2 définit avec la portée 11 du premier cercle une gorge dans laquelle la nervure 50 vient s'insérer. Le mouvement 5 est donc pris entre les deux cercles 1, 2 lorsque la montre est assemblée, et ne peut plus se déplacer axialement. Les deux cercles d'emboîtage sont en appui direct l'un contre l'autre en sorte que leur écartement est parfaitement contrôlé ; il est ainsi possible de garantir un maintien précis et sans jeu de la portée 11 entre les portions d'appui correspondantes des deux cercles. Par ailleurs, la face supérieure du deuxième cercle 2 en appui ferme contre la face inférieure du premier cercle 1 empêche tout risque de basculement ou pivotement des cercles à l'intérieur de la boîte.A second casing ring 2 is superimposed under the first casing ring so as to support the rib 50 of the movement against the scope 11 of the first casing ring. Thus, the upper face of the second circle 2 defines with the scope 11 of the first circle a groove in which the rib 50 is inserted. The movement 5 is caught between the two circles 1, 2 when the watch is assembled, and can no longer move axially. The two casing rings are in direct abutment against each other so that their spacing is perfectly controlled; it is thus possible to ensure a precise and play-free holding of the span 11 between the corresponding support portions of the two circles. Moreover, the upper face of the second circle 2 bears against the lower face of the first circle 1 prevents any risk of tilting or pivoting circles inside the box.

Le diamètre externe du deuxième cercle d'emboîtage 2 est de préférence légèrement supérieur au diamètre externe du premier cercle d'emboîtage 1 ; le centrage du mouvement dans la boîte est donc assuré uniquement par le contact entre les faces externes du deuxième cercle 2 et la carrure 6. La position axiale du mouvement dépend comme on l'a dit du premier cercle contre lequel le mouvement est appuyé. Le jeu entre le premier cercle d'emboîtage 1 et le diamètre intérieur de la carrure 6 est donc supérieur au jeu entre le deuxième cercle et la carrure, mais néanmoins suffisamment faible pour empêcher toute vibration du premier cercle 1 dans son propre plan.The outer diameter of the second casing ring 2 is preferably slightly greater than the outside diameter of the first casing ring 1; the centering of the movement in the box is therefore ensured only by the contact between the outer faces of the second circle 2 and the middle part 6. The axial position of the movement depends, as has been said, on the first circle against which movement is supported. The clearance between the first casing ring 1 and the inside diameter of the middle part 6 is therefore greater than the clearance between the second circle and the middle part, but nevertheless small enough to prevent any vibration of the first circle 1 in its own plane.

Tout comme le premier cercle d'emboîtage, le deuxième cercle 2 peut être usiné en métal, par exemple en laiton rodié, ou injecté dans un matériau synthétique. Des cercles 1 et 2 dans des matériaux différents peuvent aussi être imaginés.Like the first casing ring, the second ring 2 can be machined from metal, for example rhodium-plated brass, or injected into a synthetic material. Circles 1 and 2 in different materials can also be imagined.

Le deuxième cercle d'emboîtage 2 est muni d'une marque 22, dans cet exemple un trou sur la surface inférieure du cercle, afin de permettre à l'opérateur de l'orienter approximativement dans la carrure. Le trou de passage pour la tige de remontoir (non représentés) constitue en outre un détrompeur qui force l'alignement radial du mouvement avec le deuxième cercle 2 et avec la carrure.The second casing ring 2 is provided with a mark 22, in this example a hole on the lower surface of the circle, to allow the operator to orient it approximately in the middle part. The passage hole for the winding stem (not shown) is also a polarizer which forces the radial alignment of the movement with the second circle 2 and with the middle part.

Un premier joint annulaire 3 (joint torique, joint o-ring) logé dans une gorge 30 permet d'assurer une compression suffisante des deux cercles d'emboîtage entre eux et contre le mouvement, même lorsque les différents pièces ne sont pas usinées avec des tolérances parfaites. Le joint annulaire 3 permet aussi de centrer le deuxième cercle d'emboîtage par rapport à la carrure, et d'absorber les chocs. Le joint a par exemple une section circulaire et peut être réalisé dans un matériau élastomère, en PTFE, à base de silicone ou dans un autre matériau compressible élastiquement.A first annular seal 3 (o-ring, o-ring seal) housed in a groove 30 ensures sufficient compression of the two casing rings between them and against the movement, even when the different parts are not machined with perfect tolerances. The annular seal 3 also makes it possible to center the second casing ring with respect to the middle part, and to absorb shocks. The seal has for example a circular section and may be made of an elastomeric material, PTFE, silicone-based or other elastically compressible material.

La gorge 30 a une section trapézoïdale, la base du trapèze étant plus courte que son sommet afin d'empêcher que le joint ne sorte facilement lorsque le fond 7 est ouvert. Les parois latérales de la gorge sont constituées par une portion 21 du deuxième cercle 2 et par une portion 62 de la carrure. La face supérieure de la gorge est constituée par une autre portion 20 sur la face inférieure du deuxième cercle, tandis que la face inférieure de cette gorge est refermée par une nervure 71 en saillie sur la face supérieure du fond 7 lorsque celui-ci est vissé. Le joint 3 est donc coincé entre les trois éléments 2, 6 et 7. L'appui du joint 3 contre la portion 62 oblique de la carrure permet en outre d'exercer une pression verticale sur les deux cercles 2, 3 même lorsque le fond est ouvert. On évite ainsi le risque de démontage accidentel de l'empilement lorsque le fond est ouvert. D'autre part, le joint 3 reste au fond de la gorge 30 lors du vissage du fond, et n'est donc pas mis en rotation avec le fond.The groove 30 has a trapezoidal section, the base of the trapezium being shorter than its top to prevent the seal from coming out easily when the bottom 7 is open. The side walls of the groove are constituted by a portion 21 of the second circle 2 and a portion 62 of the middle part. The upper face of the groove is constituted by another portion 20 on the lower face of the second circle, while the lower face of this groove is closed by a rib 71 projecting on the upper face of the bottom 7 when it is screwed . The seal 3 is therefore wedged between the three elements 2, 6 and 7. The support of the seal 3 against the oblique portion 62 of the middle part also allows to exert a vertical pressure on the two circles 2, 3 even when the bottom is open. This avoids the risk of accidental disassembly of the stack when the bottom is open. On the other hand, the seal 3 remains at the bottom of the groove 30 when screwing the bottom, and is not rotated with the bottom.

Un segment de la gorge 30 est muni d'une olivette non représentée, c'est-à-dire d'un chanfrein qui permet d'introduire une brucelle ou un autre outil entre le joint 3 le deuxième cercle 2 afin d'extraire le joint 3 pour sortir le cercle d'emboîtage et le mouvement.A segment of the groove 30 is provided with a not shown olivette, that is to say a chamfer that allows to introduce a tweezers or other tool between the seal 3 the second circle 2 to extract the seal 3 to remove the casing ring and movement.

La profondeur de vissage du fond détermine la compression du premier joint annulaire 3 dans la gorge 30. Dans cet exemple, le fond 7 est vissé au moyen d'un filetage périphérique 70 engagé dans un taraudage de la carrure ; des fonds vissés au moyen de plusieurs vis discrètes ou des fonds clipsés peuvent aussi être employés. La forme du fond 6, de la carrure 6 et/ou du filetage 70 permet de limiter la profondeur de vissage du fond et d'éviter le risque d'écrasement trop important du joint 3 et des éléments d'emboîtage.The depth of screwing of the bottom determines the compression of the first annular seal 3 in the groove 30. In this example, the bottom 7 is screwed by means of a peripheral thread 70 engaged in a tapping of the middle part; funds screwed up with several discrete screws or clip-on funds can also be used. The shape of the bottom 6, the middle part 6 and / or the thread 70 makes it possible to limit the depth of screwing of the bottom and to avoid the risk of too much crushing of the joint 3 and the casing elements.

L'étanchéité est assurée par un deuxième joint annulaire 4 O-Ring, de préférence un joint à section circulaire dans un matériau compressible élastiquement, et est comprimé entre le fond 7 et la carrure 6. Le deuxième joint 4 est logé dans une gorge usinée dans la carrure, et ne nécessite donc pas impérativement un fond épais. L'usage de deux joints distincts permet de dissocier les contraintes d'étanchéité et les contraintes liées au positionnement axial et radial du mouvement dans la montre. Le mode de réalisation illustré emploie en outre deux joints annulaires à section circulaire économiques et faciles à utiliser.Sealing is ensured by a second O-ring annular seal, preferably a ring-shaped seal in an elastically compressible material, and is compressed between the bottom 7 and the middle part 6. The second seal 4 is housed in a machined groove in the middle, and therefore does not necessarily require a thick bottom. The use of two separate joints makes it possible to dissociate the sealing stresses and the stresses associated with the axial and radial positioning of the movement in the watch. The illustrated embodiment further employs two economic and easy-to-use circular section annular seals.

Le mouvement 5 est emboîté dans la montre en enfilant tout d'abord le premier cercle 1 par-dessus le mouvement 5, jusqu'à ce qu'il vienne en appui contre la saillie 50. Le cadran 9 est ensuite posé sur le mouvement, en insérant ses pieds dans des trous prévus à cet effet sur la surface supérieur du mouvement. Le premier cercle d'emboîtage 1 est alors coincé entre la face inférieure du cadran et la saillie 50. On procède ensuite à la pose des aiguilles.The movement 5 is fitted into the watch by first threading the first circle 1 over the movement 5, until it bears against the projection 50. The dial 9 is then placed on the movement, by inserting his feet in holes provided for this purpose on the upper surface of the movement. The first casing ring 1 is then wedged between the underside of the dial and the projection 50. It is then proceeded to the laying of the needles.

L'ensemble est ensuite inséré dans la carrure 6 par le fond, jusqu'à ce que le premier cercle 1 vienne en appui contre la portée 60 prévue à cet effet dans la carrure 6.The assembly is then inserted in the middle part 6 by the bottom, until the first circle 1 bears against the span 60 provided for this purpose in the middle part 6.

Le mouvement est maintenu contre le premier cercle d'emboîtage 1 en insérant le deuxième cercle d'emboîtage 2 par-dessous le premier cercle 1 et le mouvement. On l'aligne provisoirement le cercle 2 en faisant correspondre la marque 22 avec une marque correspondante sur le mouvement et/ou sur la carrure, puis définitivement en faisant passer la tige de remontoir par un passage non illustré prévu à cet effet au travers du deuxième cercle d'emboîtage 2.The movement is held against the first casing ring 1 by inserting the second casing ring 2 below the first circle 1 and the movement. It is provisionally aligned with the circle 2 by matching the mark 22 with a corresponding mark on the movement and / or on the middle part, then definitively by passing the winding stem through a non-illustrated passage provided for this purpose through the second casing ring 2.

Le joint annulaire 3 est ensuite inséré en le forçant avec un outil dans la gorge 30. Il permet de maintenir axialement et radialement le deuxième cercle, et donc le mouvement qui ne peut être extrait ou déplacé qu'en le tirant avec une force supérieure à la force de frottement du joint annulaire 3 contre la face interne de la carrure. La forme trapézoïdale de la gorge provoque une compression supplémentaire du joint 3 lorsque le deuxième cercle d'emboîtage est tiré vers le bas de la montre, en sorte qu'une extraction du mouvement sans retirer préalablement le joint 3 est difficile ou même impossible.The annular seal 3 is then inserted by forcing it with a tool in the groove 30. It makes it possible to maintain the second circle axially and radially, and therefore the movement that can be extracted or moved only by pulling it with a force greater than the friction force of the annular seal 3 against the inner face of the middle part. The trapezoidal shape of the groove causes additional compression of the seal 3 when the second casing ring is pulled down the watch, so that extraction of the movement without previously removing the seal 3 is difficult or even impossible.

Le joint d'étanchéité 4 est ensuite inséré dans une gorge prévue à cet effet sous la face inférieure de la carrure, puis le fond 7 est vissé sous la carrure. La nervure 70 en saillie sur la face supérieure du fond 7 vient fermer la gorge 30 en comprimant le joint 3 au fond de cette gorge. L'élasticité naturelle du joint tend à repousser les deux cercles d'emboîtage et le mouvement 5 contre le haut, même lorsque le fond 7 n'est pas entièrement vissé. La position axiale du mouvement est ainsi indépendante du couple de serrage du fond.The seal 4 is then inserted into a groove provided for this purpose under the lower face of the middle part, then the bottom 7 is screwed under the middle part. The rib 70 projecting from the upper face of the bottom 7 closes the groove 30 by compressing the seal 3 at the bottom of this groove. The natural elasticity of the seal tends to push the two casing rings and the movement against the top, even when the bottom 7 is not fully screwed. The axial position of the movement is thus independent of the tightening torque of the bottom.

De cette manière, la présente invention permet un emboîtage extrêmement simple, rapide, stable, robuste et étanche sans avoir besoin de vis ou de brides.In this way, the present invention allows an extremely simple, fast, stable, robust and sealed casing without the need for screws or flanges.

La présente invention concerne aussi des premiers et deuxièmes cercles d'emboîtage et des carrures adaptés au procédé de l'invention.The present invention also relates to the first and second casing rings and the frames adapted to the method of the invention.

Liste des numéros de référenceList of reference numbers

11
Elément d'emboîtage: premier cercle d'emboîtageCasing element: first casing ring
1111
Portée annulaire autour du premier cercle d'emboîtageAnnular range around the first casing ring
22
Elément d'emboîtage: deuxième cercle d'emboîtageCasing element: second casing ring
2020
Face supérieure de la gorge 30, constituée par une première portion du deuxième cercle d'emboîtage 2Upper face of the groove 30, constituted by a first portion of the second casing ring 2
2121
Bord latéral de la gorge 30, constituée par une deuxième portion du deuxième cercle d'emboîtage 2Lateral edge of the groove 30, constituted by a second portion of the second casing ring 2
2222
Marque sur le deuxième cercle d'emboîtageMark on the second casing ring
33
Elément d'emboîtage : premier joint annulaireCasing element: first annular seal
3030
Gorge annulaireRing groove
44
Deuxième joint annulaireSecond ring seal
55
MouvementMovement
5050
Portion périphérique en saillie du mouvementPeripheral portion projecting from the movement
66
Carrureshoulders
6060
Première portée de la carrureFirst litter of the middle
6262
Bord latéral de la gorge 30, constituée par une deuxième portion de la carrure 6.Lateral edge of the groove 30, constituted by a second portion of the middle part 6.
6363
Deuxième portée de la carrureSecond staff of the middle
77
Fond de la boîte de montreBottom of the watch box
7070
Filetage du fondBottom thread
7171
Nervure en saillie sur la face supérieure du fondRib projecting from the upper side of the bottom
88
GlaceIce cream
99
CadranDial

Claims (16)

Montre comportant: une carrure (6), un fond amovible (7), un mouvement (5), des éléments d'emboîtage (1,2,3) pour maintenir le mouvement dans la carrure (6),
caractérisée en ce que : lesdits éléments d'emboîtage comportent des premiers éléments d'emboîtage (1) et des deuxièmes éléments d'emboîtage (2) en contact direct avec les premiers éléments d'emboîtage, en ce que le mouvement est maintenu dans la carrure (6) entre les premiers et les deuxièmes éléments d'emboîtage, et en ce que lesdits éléments d'emboîtage sont superposés et comprimés entre une portion (60) de la carrure (6) et une portion (71) liée au fond amovible. Watch comprising: a middle part (6), a removable bottom (7), a movement (5), casing elements (1,2,3) to maintain the movement in the middle part (6),
characterized in that said casing elements comprise first casing elements (1) and second casing elements (2) in direct contact with the first casing elements, in that the movement is maintained in the middle part (6) between the first and the second casing elements, and in that said casing elements are superimposed and compressed between a portion (60) of the middle part (6) and a portion (71) connected to the removable bottom. La montre de la revendication 1, comportant un premier joint élastique (3) pour comprimer ladite portion (60) entre lesdits éléments d'emboîtage, et un deuxième joint élastique (4) pour empêcher les infiltrations d'eau entre le fond (7) et la carrure (6).The watch of claim 1, comprising a first elastic seal (3) for compressing said portion (60) between said casing members, and a second elastic seal (4) for preventing water infiltration between the bottom (7) and the middle part (6). La montre de la revendication 1, comportant l'empilement d'éléments suivants : ladite carrure (6), lesdits premiers éléments d'emboîtage (1), lesdits deuxièmes éléments d'emboîtage (2), un élément (3) élastiquement compressible, ledit fond amovible (7). The watch of claim 1, comprising the stack of the following elements: said middle part (6), said first casing elements (1), said second casing elements (2), an elastically compressible element (3), said removable bottom (7). La montre de la revendication 3, comportant un joint annulaire (4) distinct dudit élément (3) élastiquement compressible, ledit joint annulaire étant disposé entre ladite carrure (6) et ledit fond amovible (7) afin d'empêcher les infiltrations d'eau entre le fond (7) et la carrure (6).The watch of claim 3, comprising an annular seal (4) separate from said elastically compressible element (3), said annular seal being disposed between said middle part (6) and said removable bottom (7) in order to prevent the infiltration of water between the bottom (7) and the middle part (6). La montre de l'une des revendications 3 ou 4, ledit élément (3) élastiquement compressible permettant de compenser les variations de hauteur entre ladite portion (60) de la carrure et ladite portion (71) liée au fond (7).The watch of one of claims 3 or 4, said elastically compressible element (3) for compensating for variations in height between said portion (60) of the middle and said portion (71) connected to the bottom (7). La montre de la revendication 5, ledit élément élastiquement compressible étant constitué par un premier joint annulaire (3).The watch of claim 5, said elastically compressible member being constituted by a first annular seal (3). La montre de la revendication 6, ledit premier joint annulaire (3) étant comprimé axialement lors du vissage dudit fond (7).The watch of claim 6, said first annular seal (3) being compressed axially when screwing said bottom (7). La montre de la revendication 7, ledit premier joint annulaire (3) étant logé dans une gorge (30),
la face supérieure (20) et les parois frontales (21, 62) de la gorge étant constituées par des portions (21) desdits éléments d'emboîtage et des portions (62) de ladite carrure,
lesdites parois frontales (21, 62) étant non parallèles de manière à éviter que ledit premier joint annulaire (3) ne s'échappe lorsque le fond (7) est ouvert,
la face inférieure de ladite gorge (30) étant fermée par une nervure (71) en saillie sur le fond (7) lorsque le fond est fermé, de manière à comprimer ledit joint dans ladite gorge.The watch of claim 7, said first annular seal (3) being housed in a groove (30),
the upper face (20) and the front walls (21, 62) of the groove being constituted by portions (21) of said casing elements and portions (62) of said middle part,
said front walls (21, 62) being non-parallel so as to prevent said first annular seal (3) from escaping when the bottom (7) is open,
the lower face of said groove (30) being closed by a rib (71) projecting from the bottom (7) when the bottom is closed, so as to compress said seal in said groove. La montre de l'une des revendications 6 à 8, ledit premier joint annulaire (3) étant comprimé radialement entre un élément d'emboîtage (2) et la carrure (6).The watch of one of claims 6 to 8, said first annular seal (3) being compressed radially between a casing member (2) and the middle part (6). La montre de la revendication 9, lesdits éléments d'emboîtage (1, 2, 3) étant maintenus dans la carrure (6) lorsque ledit fond (7) est ouvert uniquement par ladite compression dudit premier joint annulaire.The watch of claim 9, said casing elements (1, 2, 3) being held in the middle (6) when said bottom (7) is open only by said compression of said first annular seal. La montre de la revendication 3, lesdits éléments d'emboîtage (1, 2, 3) étant maintenus dans la carrure (6) lorsque ledit fond (7) est ouvert par compression dudit élément (3) élastiquement compressible contre une portion de la carrure (6).The watch of claim 3, said casing elements (1, 2, 3) being held in the middle (6) when said bottom (7) is open by compression of said element (3) elastically compressible against a portion of the middle part (6). La montre de l'une des revendications 3 à 11, dans laquelle le centrage du mouvement est assuré par ledit deuxième élément d'emboîtage (2).The watch of one of claims 3 to 11, wherein the centering of movement is provided by said second casing member (2). La montre de l'une des revendications 1 à 12, ledit mouvement (5) comportant une portion périphérique en saillie (50) maintenue entre deux éléments d'emboîtage (1, 2).The watch of one of claims 1 to 12, said movement (5) having a protruding peripheral portion (50) held between two casing elements (1, 2). La montre de l'une des revendications 1 à 13, lesdits éléments d'emboîtage (1, 2, 3) étant maintenus sans vis et sans bride uniquement par la compression exercée par ledit fond (7).The watch of one of claims 1 to 13, said casing elements (1, 2, 3) being held without screws and without flange only by the compression exerted by said bottom (7). Procédé d'emboîtage de mouvement (5) de montre dans une carrure (6), comportant les étapes suivantes : insertion du cadran, d'un premier cercle d'emboîtage (1) et du mouvement (5) dans ladite carrure, insertion d'un deuxième cercle d'emboîtage (2) dans ladite carrure, le deuxième cercle d'emboîtage étant en contact direct avec le premier cercle d'emboîtage, insertion d'un élément (3) élastiquement compressible vissage du fond (7) avec la carrure (6), de manière à comprimer l'empilement constitué dudit élément (3), des deux cercles d'emboîtage (1, 2) et du mouvement (5). A method of fitting a watch movement (5) into a middle part (6), comprising the following steps: inserting the dial, a first casing ring (1) and the movement (5) into said middle part, inserting a second casing ring (2) into said middle part, the second casing ring being in direct contact with the first casing ring, insertion of an elastically compressible element (3) screwing the bottom (7) with the middle part (6), so as to compress the stack consisting of said element (3), the two casing circles (1, 2) and the movement (5). Le procédé de la revendication 15, comportant une étape d'insertion d'un deuxième joint annulaire (4) entre le fond et ladite carrure (6), le deuxième joint annulaire étant destiné à prévenir les infiltrations d'eau dans ladite carrure.The method of claim 15, comprising a step of inserting a second annular seal (4) between the bottom and said middle (6), the second annular seal being intended to prevent water infiltration in said middle.
EP20080152818 2007-03-16 2008-03-17 Watch and casing method Active EP1970779B1 (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2328045A1 (en) * 2009-11-27 2011-06-01 Mustafa Tarim Clock
EP2458456A1 (en) 2010-11-25 2012-05-30 Rolex Sa Watch with rigid casing and casing method
EP2595007A1 (en) 2011-11-17 2013-05-22 ETA SA Manufacture Horlogère Suisse Timepiece assembly with centring and attachment of a plate relative to a middle case

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CH534674A (en) 1969-02-11 1973-03-15 Merck Patent Gmbh 9-alpha fluoro-16-fluoro methylene - pred - nisolone 21-oenanthate (i)
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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1718942U (en) * 1955-11-23 1956-03-15 Rodi & Wienerberger Ag WATERPROOF WATCH CASE.
CH331282A (en) 1956-09-29 1958-07-15 Omega Brandt & Freres Sa Louis Waterproof watch box
CH564802B5 (en) 1967-08-22 1975-07-31 Suwa Seikosha Kk Waterproof watch
CH534674A (en) 1969-02-11 1973-03-15 Merck Patent Gmbh 9-alpha fluoro-16-fluoro methylene - pred - nisolone 21-oenanthate (i)
GB1486059A (en) 1974-06-26 1977-09-14 Suwa Seikosha Kk Apparatus for use in a timepiece
DE3100791A1 (en) 1981-01-13 1982-08-05 Porsche, Ferdinand Alexander, 5662 Gries, Pinzgau Diving watch

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2328045A1 (en) * 2009-11-27 2011-06-01 Mustafa Tarim Clock
EP2458456A1 (en) 2010-11-25 2012-05-30 Rolex Sa Watch with rigid casing and casing method
WO2012068696A2 (en) 2010-11-25 2012-05-31 Rolex S.A. Watch with a rigid casing-up, and casing-up method
CN103348293A (en) * 2010-11-25 2013-10-09 劳力士有限公司 Watch with rigid casing-up, and casing-up method
US9342051B2 (en) 2010-11-25 2016-05-17 Rolex S.A. Watch with a rigid casing-up, and casing-up method
CN103348293B (en) * 2010-11-25 2017-03-29 劳力士有限公司 Table with hard assembling watchcase, and the method for watchcase assembling
EP2595007A1 (en) 2011-11-17 2013-05-22 ETA SA Manufacture Horlogère Suisse Timepiece assembly with centring and attachment of a plate relative to a middle case
US8870450B2 (en) 2011-11-17 2014-10-28 Eta Sa Manufacture Horlogère Suisse Timepiece assembly wherein a bottom plate is centred and secured relative to a middle part
RU2604301C2 (en) * 2011-11-17 2016-12-10 Эта Са Мануфактюр Орложэр Сюис Clock assembly, in which bottom mainplate is centered and fixed relative to middle part

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