EP0521327A1 - Wrist-watch comprising a bezel-middle, horns and a back-cover all made in one piece - Google Patents

Wrist-watch comprising a bezel-middle, horns and a back-cover all made in one piece Download PDF

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Publication number
EP0521327A1
EP0521327A1 EP92110024A EP92110024A EP0521327A1 EP 0521327 A1 EP0521327 A1 EP 0521327A1 EP 92110024 A EP92110024 A EP 92110024A EP 92110024 A EP92110024 A EP 92110024A EP 0521327 A1 EP0521327 A1 EP 0521327A1
Authority
EP
European Patent Office
Prior art keywords
circle
movement
dial
housing
bezel
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.)
Withdrawn
Application number
EP92110024A
Other languages
German (de)
French (fr)
Inventor
Bertrand Carrard
Pierre-Alain Walder
Eric Loth
Raimondo Brenni
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.)
Swatch Group Management Services AG
Original Assignee
SMH Management Services AG
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 SMH Management Services AG filed Critical SMH Management Services AG
Publication of EP0521327A1 publication Critical patent/EP0521327A1/en
Withdrawn legal-status Critical Current

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    • GPHYSICS
    • G04HOROLOGY
    • G04BMECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
    • G04B37/00Cases
    • G04B37/22Materials or processes of manufacturing pocket watch or wrist watch cases
    • G04B37/225Non-metallic cases
    • GPHYSICS
    • G04HOROLOGY
    • G04BMECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
    • G04B37/00Cases
    • GPHYSICS
    • G04HOROLOGY
    • G04BMECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
    • G04B19/00Indicating the time by visual means
    • G04B19/06Dials
    • G04B19/14Fastening the dials to the clock or watch plates
    • GPHYSICS
    • G04HOROLOGY
    • G04BMECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
    • G04B37/00Cases
    • G04B37/04Mounting the clockwork in the case; Shock absorbing mountings
    • G04B37/05Fixed mountings for pocket or wrist watches
    • GPHYSICS
    • G04HOROLOGY
    • G04BMECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
    • G04B37/00Cases
    • G04B37/06Forming the passage for the winding stem through the case; Divided winding stems
    • G04B37/066Divided stem (tige brisee)
    • GPHYSICS
    • G04HOROLOGY
    • G04BMECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
    • G04B39/00Watch crystals; Fastening or sealing of crystals; Clock glasses
    • G04B39/02Sealing crystals or glasses
    • GPHYSICS
    • G04HOROLOGY
    • G04CELECTROMECHANICAL CLOCKS OR WATCHES
    • G04C10/00Arrangements of electric power supplies in time pieces

Definitions

  • the present invention relates to a monocoque wristwatch in which the middle-bezel, the back and the horns which serve to attach the bracelet to the case are made in one piece.
  • the object of the present invention is to simplify the manufacture of the housing as much as possible, to reduce the subsequent machining operations as much as possible and to simplify the mounting operations.
  • the wristwatch of the invention combines a series of very precise characteristics, most of which are known per se, but which, when combined, produce a surprising effect by the very small number of parts involved, by the simplicity of production of these parts, by a single machining operation of its housing and by a time of assembly reduced to the maximum, this while ensuring the object an excellent finish and a general high-end quality.
  • Figure 1 shows in perspective the case 1 of the watch essentially composed of the middle part-bezel 42, two pairs of horns respectively referenced 2, 2 'and 3.3' and a back 43. All these elements are made of one piece. In each horn is made a hole 5 into which one of the ends of a spring bar used to attach the bracelet using a well-known technique.
  • housing 1 In the housing 1 is housed an assembly 44 formed by the elements shown in perspective in FIG. 2. It is a casing circle 18 which receives a movement 25 then a dial 28.
  • Means define the angular position of the circle 18, therefore of the assembly 44, relative to the housing 1.
  • these means consist of a boss 7 formed inside the middle part-bezel 42 (FIG. 1) , boss which cooperates with a housing 19 formed in the circle 18 ( Figure 2).
  • Other means also define the radial position, or the centering of the circle 18 relative to the housing 1.
  • these means consist of a machining carried out in the internal wall 6 of the middle part-bezel 42, machining which makes this wall cylindrical. The diameter of the machining is brought to a dimension suitable for receiving the upper circumference 50 of the circle 18.
  • other means define the axial position of the circle 18 relative to the housing 1.
  • a support shoulder 8 is made in the middle part-bezel 42 (FIG. 1). On this shoulder 8 comes to bear the lower edge 17 of the circle 18 ( Figure 2).
  • the assembly 44 is formed of the circle 18, of the movement 25 and of the dial 28.
  • means are provided for angularly positioning the movement and the dial relative to the circle.
  • FIG. 2 shows that the movement 25 comprises a housing 23 which cooperates with a boss 21 formed inside the circle 18 when the movement is placed in the circle in the direction indicated by the arrow B.
  • the circle has another housing 22, housing in which takes place a first part 35 of a time-setting rod placed inside the movement 25.
  • This folding can be achieved by softening the material, if the circle is made of plastic, and is visible in Figure 4 under the reference 45. Once the folding, the assembly 44 forms a whole which holds together and can be easily handled. Note that to this set we will add needles that we will plant on the output axes 26 of movement 25, as well as a battery (not shown), as will be explained below.
  • the assembly thus formed is introduced into the housing 1 until the lower edge 17 of the circle 18 abuts against the support shoulder 8 taking care to coincide the boss 7 of the housing with the housing 19 of the circle .
  • Figure 4 is a section at 6 o'clock in the fully assembled watch.
  • the horn 2 the bar hole 5 and the housing 1 with its middle-bezel 42.
  • the lower edge 17 of the circle 18 rests on the support shoulder 8 of the middle.
  • the movement 25 comprises a thread 53 which rests on the support shoulder 51 made in the circle 18 and that the dial 28 rests on the support shoulder 52 made in the same circle.
  • the circle 18 is centered radially by the internal wall 6 of the middle part 42 and its upper edge has the fold 45 which serves to fix the dial on the circle.
  • On the dial 28 rests the flange 30 centered by the same internal wall 6.
  • the flange has a recess in which takes place the drawdown 45 and that it rests on the dial by a flange 54.
  • the edge 46 of the glass 32 compresses the lining 31 against the internal wall 6 of the middle part-bezel 42.
  • FIG. 4 like FIGS. 5, 6 and 7, moreover, shows that under the movement 25 is fixed an enclosure 24 comprising a raised edge 41, enclosure in which a battery takes place (not shown).
  • This battery is for example of the large diameter lithium type, which allows a long run time of the watch. It will be noted that to change the battery, the second part 14 is removed from the rod (FIG. 1), then air is blown into the rod hole 13, which drives the ice 32 out of its housing and which allows finally to release movement 25 with its enclosure 24.
  • Figure 5 is a section at 12 o'clock in the fully assembled watch. We distinguish in this drawing the boss 20 forming part of the circle 18 and imposing on the dial 28 a precise angular position relative to the circle. We also distinguish in Figure 5 the boss 7 forming part of the housing 1, a boss which is in place in the housing 19 formed in the circle 18 and which imposes on the circle a precise angular position relative to the housing.
  • Figure 6 is a section at 9 o'clock in the fully assembled watch.
  • the boss 21 which forms part of the circle 18 and which imposes on the movement 25 a precise angular position relative to the circle is distinguished, this boss cooperating with the housing 23.
  • Figure 7 is a section at 3 o'clock in the fully assembled watch.
  • the time-setting rod composed of a first internal part 35 coupled to the movement 25 and a second part 14 crossing the middle 42.
  • This rod is of the broken type.
  • These first and second parts are coupled at 36, as described for example in patent CH-A-524 178.
  • the rod comprises only the first part 35.
  • the second part 14 is introduced into the bore 13 made in the middle in the direction of the arrow A (FIG. 1) and this until the two parts click into place.
  • the rod passes through the housing 22 formed in the circle.
  • FIG. 7 also shows that the second part 14 of the rod is capped by a crown 16, the latter being partially engaged in a housing 12 comprising a roof 37. It will be understood that this arrangement makes it possible to conceal certain inaccuracies over the length of the rod so that the crown base always remains inside the housing 12.
  • the second part 14 of the rod still has a groove 33 occupied by a lining 15 which seals the rod as it passes through the hole 13.
  • this construction in no way requires the use of a tube driven into the middle as is usually seen to ensure this seal.
  • Figure 8 is a section at 9 o'clock showing two variants of execution compared to the execution presented in Figure 6.
  • a first variant consists in bringing together in one piece the flange 30 and the trim 31 of FIG. 6, which results in the single piece 38 shown in FIG. 8.
  • a second variant consists in associating with the circle 18 the battery enclosure 24 shown in FIG. 6.
  • FIG. 8 shows a single part 39 acting as a circle and as a battery enclosure at the same time.
  • FIG. 8 also makes it possible to explain, together with FIG. 9 which shows in detail the internal wall of the case 1, an important and characteristic arrangement of the watch according to the invention.
  • the housing 1 after molding and sintering, has flat horizontal surfaces such as the bottom 10 and the support shoulder 8, and inclined surfaces, allowing demolding, such as the surfaces 9 and 11 (see FIG. 9) .
  • the inclined surface 11 we will grind a cylindrical face 6 which will serve as a centering reference for the circle 39 and for the part 38 assembling the flange and the seal. For this, the grinding depth must be greater than the sum of the heights of the lining, the flange and the circle.
  • the manufacture and assembly of the watch according to the invention are thus extremely simplified:
  • the housing 1, leaving the molding, must undergo only one machining operation: that of the grinding of the internal reference wall 6.
  • the internal face 10 of the base 43, the support shoulder 8 come out of sintering without have to be touched up.
  • the housing 1 has a hole 13 of rod and holes 5 of bracelet bars which also come out of sintering without having to be touched up.
  • the horns 2, 2 'and 3, 3' do not have to be added since they are molded with the housing.
  • the boss 7 can also be left raw.
  • the casing ring 18 made of plastic is injected at once with all its positioning housings and bosses, as well as with its bearing surfaces for the movement and the dial.
  • the assembly 44 formed by the circle 18, the movement 25, the dial 28 and the hands forms a whole that is easy to assemble for itself, for example on an automatic machine and easy to then assemble in the case.
  • the whole watch is mounted on one side and there is no need to turn it over. No fixing screw is used for assembly.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Power Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Electric Clocks (AREA)

Abstract

The wrist-watch includes a single-casting case (1) made preferably of ceramic. In the case are assembled through the top an encaging ring (18), a movement (25) arranged in the ring and a dial (28) imprisoning the movement. The watch includes means for positioning the ring angularly (7, 19), radially (6) and axially (8) with respect to the case. It also includes means (21, 23; 20, 29) for angularly positioning the movement and the dial with respect to the ring. The case is closed by a glass (32) bearing upon a raising (30). <IMAGE>

Description

La présente invention est relative à une montre-bracelet monocoque dans laquelle la carrure-lunette, le fond et les cornes qui servent d'attache du bracelet au boîtier sont faits d'une seule pièce.The present invention relates to a monocoque wristwatch in which the middle-bezel, the back and the horns which serve to attach the bracelet to the case are made in one piece.

Pour réaliser un boîtier monocoque de ce genre, on peut avoir recours à l'injection puis au frittage de poudres métalliques ou d'oxydes, de carbures ou de nitrures métalliques. Un boîtier en matériau très dur utilisant cette technique est décrite dans le document US-A-3 931 704. Ce boîtier, fait en diamant fritté, comporte une carrure, un fond et des cornes faits d'une pièce.To produce a monocoque housing of this kind, recourse may be had to the injection and then to the sintering of metallic powders or of metal oxides, carbides or nitrides. A case made of very hard material using this technique is described in document US-A-3,931,704. This case, made of sintered diamond, has a middle part, a bottom and horns made in one piece.

La présente invention a pour but de simplifier au maximum la fabrication du boîtier, de réduire autant que faire se peut les opérations d'usinage subséquentes et de simplifier les opérations de montage. Pour cela, la montre-bracelet de l'invention réunit une série de caractéristiques bien précises, pour la plupart connues en soi, mais qui, combinées entre elles, produisent un effet surprenant par le très faible nombre de pièces mises en jeu, par la simplicité de réalisation de ces pièces, par une seule opération d'usinage de son boîtier et par un temps de montage réduit au maximum, ceci tout en assurant à l'objet une excellente finition et une qualité générale de haut de gamme.The object of the present invention is to simplify the manufacture of the housing as much as possible, to reduce the subsequent machining operations as much as possible and to simplify the mounting operations. For this, the wristwatch of the invention combines a series of very precise characteristics, most of which are known per se, but which, when combined, produce a surprising effect by the very small number of parts involved, by the simplicity of production of these parts, by a single machining operation of its housing and by a time of assembly reduced to the maximum, this while ensuring the object an excellent finish and a general high-end quality.

Pour atteindre ce but, la montre-bracelet de la présente invention comporte en combinaison :

  • un boîtier comprenant une carrure-lunette, deux paires de cornes attenantes à la carrure pour servir chacune d'attache à un des brins d'un bracelet et un fond, la carrure-lunette, les cornes et le fond étant faits d'une seule pièce,
  • un ensemble prenant place dans le boîtier et comprenant un cercle d'encageage, un mouvement placé dans le cercle et un cadran surmontant le cercle,
  • des moyens pour positionner angulairement, radialement et axialement le cercle par rapport au boîtier,
  • des moyens pour positionner angulairement le mouvement et le cadran par rapport au cercle,
  • des moyens pour fixer le cadran dans le cercle et emprisonner ainsi le mouvement pour former ledit ensemble,
  • un réhaut posé sur ledit ensemble, et
  • une glace posée sur ledit réhaut, la glace étant fixée à l'intérieur de la carrure-lunette au moyen d'une garniture d'étanchéité disposée entre la tranche que présente ladite glace et la paroi interne que présente ladite carrure-lunette.
To achieve this object, the wristwatch of the present invention comprises in combination:
  • a case comprising a middle-bezel, two pairs of horns adjoining the middle to each serve to attach to one of the strands of a bracelet and a bottom, the middle-bezel, the horns and the bottom being made in one room,
  • an assembly taking place in the case and comprising a casing circle, a movement placed in the circle and a dial surmounting the circle,
  • means for angularly, radially and axially positioning the circle relative to the housing,
  • means for angularly positioning the movement and the dial relative to the circle,
  • means for fixing the dial in the circle and thereby trapping the movement to form said assembly,
  • a flange placed on said assembly, and
  • a lens placed on said flange, the lens being fixed inside the middle part of the bezel by means of a gasket placed between the edge which said lens has and the internal wall which said said middle part of the bezel.

L'invention sera expliquée maintenant à l'aide de la description qui suit, donnée à titre d'exemple et en s'aidant du dessin qui l'illustre et dans lequel :

  • la figure 1 est une vue en perspective du boîtier de la montre selon l'invention,
  • la figure 2 est une vue en perspective éclatée du cadran, du mouvement et du cercle d'encageage qui, une fois réunis, forment un ensemble qui vient monté dans le boîtier de la figure 1,
  • la figure 3 est une vue en perspective éclatée de la glace, du joint de glace et du réhaut qui surmontent le cadran présenté en figure 2,
  • la figure 4 est une coupe à 6 heures selon la ligne IV-IV de la figure 1, la montre étant censée être complètement assemblée,
  • la figure 5 est une coupe à 12 heures selon la ligne V-V de la figure 1, la montre étant censée être complètement assemblée,
  • la figure 6 est une coupe à 9 heures selon la ligne VI-VI de la figure 1, la montre étant censée être complètement assemblée,
  • la figure 7 est une coupe à 3 heures selon la ligne VII-VII de la figure 1, la montre étant censée être complètement assemblée,
  • la figure 8 est une coupe à 9 heures montrant deux variantes d'exécution par rapport à celle illustrée en figure 6, et
  • la figure 9 est une coupe montrant en détail la paroi interne du boîtier et comment celui-ci est usiné.
The invention will now be explained with the aid of the description which follows, given by way of example and with the aid of the drawing which illustrates it and in which:
  • FIG. 1 is a perspective view of the watch case according to the invention,
  • FIG. 2 is an exploded perspective view of the dial, of the movement and of the casing circle which, once combined, form an assembly which comes mounted in the box of FIG. 1,
  • FIG. 3 is an exploded perspective view of the glass, the glass seal and the flange which surmount the dial presented in FIG. 2,
  • FIG. 4 is a section at 6 o'clock along the line IV-IV of FIG. 1, the watch being supposed to be completely assembled,
  • FIG. 5 is a section at 12 o'clock along the line VV in FIG. 1, the watch being supposed to be completely assembled,
  • FIG. 6 is a section at 9 o'clock along the line VI-VI of FIG. 1, the watch being supposed to be completely assembled,
  • FIG. 7 is a section at 3 o'clock along the line VII-VII of FIG. 1, the watch being supposed to be completely assembled,
  • FIG. 8 is a section at 9 o'clock showing two variant embodiments with respect to that illustrated in FIG. 6, and
  • Figure 9 is a section showing in detail the inner wall of the housing and how it is machined.

La figure 1 montre en perspective le boîtier 1 de la montre composé essentiellement de la carrure-lunette 42, de deux paires de cornes référencées respectivement 2, 2' et 3,3' et d'un fond 43. Tous ces éléments sont faits en une seule pièce. Dans chaque corne est pratiqué un trou 5 dans lequel pénètre une des extrémités d'une barrette à ressort servant à attacher le bracelet selon une technique bien connue.Figure 1 shows in perspective the case 1 of the watch essentially composed of the middle part-bezel 42, two pairs of horns respectively referenced 2, 2 'and 3.3' and a back 43. All these elements are made of one piece. In each horn is made a hole 5 into which one of the ends of a spring bar used to attach the bracelet using a well-known technique.

Dans le boîtier 1 vient loger un ensemble 44 formé par les éléments montrés en perspective à la figure 2. Il s'agit d'un cercle d'encageage 18 qui reçoit un mouvement 25 puis un cadran 28.In the housing 1 is housed an assembly 44 formed by the elements shown in perspective in FIG. 2. It is a casing circle 18 which receives a movement 25 then a dial 28.

Des moyens définissent la position angulaire du cercle 18, donc de l'ensemble 44, par rapport au boîtier 1. Dans la construction proposée, ces moyens consistent en un bossage 7 pratiqué à l'intérieur de la carrure-lunette 42 (figure 1), bossage qui coopère avec un logement 19 pratiqué dans le cercle 18 (figure 2). D'autres moyens définissent aussi la position radiale, ou le centrage du cercle 18 par rapport au boîtier 1. Ici, ces moyens consistent en un usinage pratiqué dans la paroi interne 6 de la carrure-lunette 42, usinage qui rend cette paroi cylindrique. Le diamètre de l'usinage est amené à une cote adaptée pour recevoir la circonférence supérieure 50 du cercle 18. D'autres moyens enfin définissent la position axiale du cercle 18 par rapport au boîtier 1. Dans le cas de la construction prise en exemple, on pratique un épaulement d'appui 8 dans la carrure-lunette 42 (figure 1). Sur cet épaulement 8 vient s'appuyer le bord inférieur 17 du cercle 18 (figure 2).Means define the angular position of the circle 18, therefore of the assembly 44, relative to the housing 1. In the proposed construction, these means consist of a boss 7 formed inside the middle part-bezel 42 (FIG. 1) , boss which cooperates with a housing 19 formed in the circle 18 (Figure 2). Other means also define the radial position, or the centering of the circle 18 relative to the housing 1. Here, these means consist of a machining carried out in the internal wall 6 of the middle part-bezel 42, machining which makes this wall cylindrical. The diameter of the machining is brought to a dimension suitable for receiving the upper circumference 50 of the circle 18. Finally, other means define the axial position of the circle 18 relative to the housing 1. In the case of the construction taken as an example, a support shoulder 8 is made in the middle part-bezel 42 (FIG. 1). On this shoulder 8 comes to bear the lower edge 17 of the circle 18 (Figure 2).

On a déjà dit que l'ensemble 44 est formé du cercle 18, du mouvement 25 et du cadran 28. Dans cet ensemble, on prévoit des moyens pour positionner angulairement le mouvement et le cadran par rapport au cercle. La figure 2 montre que le mouvement 25 comporte un logement 23 qui coopère avec un bossage 21 pratiqué à l'intérieur du cercle 18 quand le mouvement est placé dans le cercle selon le sens indiqué par la flèche B. Ainsi est assurée la position angulaire du mouvement par rapport au cercle. On s'aperçoit aussi que le cercle comporte un autre logement 22, logement dans lequel prend place une première partie 35 d'une tige de mise à l'heure disposée à l'intérieur du mouvement 25.It has already been said that the assembly 44 is formed of the circle 18, of the movement 25 and of the dial 28. In this assembly, means are provided for angularly positioning the movement and the dial relative to the circle. FIG. 2 shows that the movement 25 comprises a housing 23 which cooperates with a boss 21 formed inside the circle 18 when the movement is placed in the circle in the direction indicated by the arrow B. Thus the angular position of the movement relative to the circle. We also see that the circle has another housing 22, housing in which takes place a first part 35 of a time-setting rod placed inside the movement 25.

Une fois le mouvement 25 placé à l'intérieur du cercle 18, il y repose sur l'épaulement d'appui 51 que présente le cercle. On peut maintenant procéder à la pose du cadran 28 selon le sens de la flèche C. Des moyens assurent sa position angulaire par rapport au cercle. Ces moyens consistent, dans la construction illustrée ici, en un logement 29 qui coopère avec un bossage 20 pratiqué à l'intérieur du cercle 18. Le cadran 28 repose alors sur l'épaulement d'appui 52 que présente le cercle 18. Si l'on veut que l'ensemble 44 puisse être transporté facilement, il s'agit encore de fixer le cadran dans le cercle. Ici, la construction prévoit pour cette fixation un rabattement ou sertissage du bord supérieur 47 du cercle sur la périphérie du cadran. Ce rabattement peut être réalisé par ramollissement de la matière, si le cercle est fait en matière plastique, et est visible en figure 4 sous la référence 45. Une fois le rabattement opéré, l'ensemble 44 forme un tout qui tient ensemble et peut être facilement manipulé. On notera qu'à cet ensemble on ajoutera des aiguilles qu'on plantera sur les axes de sortie 26 du mouvement 25, ainsi qu'une pile (non représentée), comme cela sera expliqué plus loin. L'ensemble ainsi constitué est introduit dans le boîtier 1 jusqu'à ce que le bord inférieur 17 du cercle 18 vienne buter contre l'épaulement d'appui 8 en prenant soin de faire coincider le bossage 7 du boîtier avec le logement 19 du cercle.Once the movement 25 has been placed inside the circle 18, it rests there on the support shoulder 51 which the circle has. We can now proceed to install the dial 28 in the direction of the arrow C. Means ensure its angular position relative to the circle. These means consist, in the construction illustrated here, of a housing 29 which cooperates with a boss 20 made at inside the circle 18. The dial 28 then rests on the support shoulder 52 presented by the circle 18. If it is desired that the assembly 44 can be transported easily, it is still a question of fixing the dial in the circle. Here, the construction provides for this fixing a folding or crimping of the upper edge 47 of the circle on the periphery of the dial. This folding can be achieved by softening the material, if the circle is made of plastic, and is visible in Figure 4 under the reference 45. Once the folding, the assembly 44 forms a whole which holds together and can be easily handled. Note that to this set we will add needles that we will plant on the output axes 26 of movement 25, as well as a battery (not shown), as will be explained below. The assembly thus formed is introduced into the housing 1 until the lower edge 17 of the circle 18 abuts against the support shoulder 8 taking care to coincide the boss 7 of the housing with the housing 19 of the circle .

Une fois l'ensemble 44 dans le boîtier 1, on procède à la mise en place d'un réhaut 30 (figure 3) qu'on pose sur le cadran 28, puis d'une garniture d'étanchéité 31 qu'on pose sur le réhaut. Enfin, on ferme le boîtier en forçant une glace 32 par sa tranche 46 dans la garniture 31. On notera que la paroi interne usinée 6 du boîtier 1 est utilisée également à centrer le réhaut et à assurer l'étanchéité de la montre par compression de la garniture 31, en plus de sa fonction de centrage du cercle 18, comme expliqué plus haut.Once the assembly 44 in the housing 1, we proceed to the establishment of a flange 30 (Figure 3) which is placed on the dial 28, then a seal 31 which is placed on the flange. Finally, the casing is closed by forcing a crystal 32 by its edge 46 in the lining 31. It will be noted that the machined internal wall 6 of the casing 1 is also used to center the flange and to seal the watch by compression of the lining 31, in addition to its function of centering the circle 18, as explained above.

On va discuter maintenant les figures 4 à 7 qui permettront de discuter certains points de détail qui n'apparaissent pas, ou peu, aux figures en perspective 1 à 3.We will now discuss Figures 4 to 7 which will allow us to discuss certain points of detail which do not appear, or only slightly, in the perspective figures 1 to 3.

La figure 4 est une coupe à 6 heures dans la montre complètement assemblée. On y reconnaît la corne 2, le trou de barrette 5 et le boîtier 1 avec sa carrure-lunette 42. On remarque que le bord inférieur 17 du cercle 18 repose sur l'épaulement d'appui 8 de la carrure. On voit que le mouvement 25 comporte un filet 53 qui repose sur l'épaulement d'appui 51 pratiqué dans le cercle 18 et que le cadran 28 repose sur l'épaulement d'appui 52 pratiqué dans le même cercle. Le cercle 18 est centré radialement par la paroi interne 6 de la carrure 42 et son bord supérieur présente le rabattement 45 qui sert à fixer le cadran sur le cercle. Sur le cadran 28 repose le réhaut 30 centré par la même paroi interne 6. A ce propos, on s'aperçoit que le réhaut possède un évidement dans lequel prend place le rabattement 45 et qu'il repose sur le cadran par un rebord 54. Enfin, la tranche 46 de la glace 32 comprime la garniture 31 contre la paroi interne 6 de la carrure-lunette 42.Figure 4 is a section at 6 o'clock in the fully assembled watch. We recognize the horn 2, the bar hole 5 and the housing 1 with its middle-bezel 42. We note that the lower edge 17 of the circle 18 rests on the support shoulder 8 of the middle. It can be seen that the movement 25 comprises a thread 53 which rests on the support shoulder 51 made in the circle 18 and that the dial 28 rests on the support shoulder 52 made in the same circle. The circle 18 is centered radially by the internal wall 6 of the middle part 42 and its upper edge has the fold 45 which serves to fix the dial on the circle. On the dial 28 rests the flange 30 centered by the same internal wall 6. In this regard, we see that the flange has a recess in which takes place the drawdown 45 and that it rests on the dial by a flange 54. Finally, the edge 46 of the glass 32 compresses the lining 31 against the internal wall 6 of the middle part-bezel 42.

La figure 4, comme les figures 5, 6 et 7 d'ailleurs, montrent que sous le mouvement 25 est fixée une enceinte 24 comportant un bord relevé 41, enceinte dans laquelle prend place une pile (non représentée). Cette pile est par exemple du type au lithium de grand diamètre, ce qui permet une longue autonomie de marche de la montre. On notera que pour changer la pile, on retire la seconde partie 14 de la tige (figure 1), puis on insuffle de l'air dans le trou de tige 13, ce qui chasse la glace 32 hors de son logement et ce qui permet finalement de sortir le mouvement 25 avec son enceinte 24.FIG. 4, like FIGS. 5, 6 and 7, moreover, shows that under the movement 25 is fixed an enclosure 24 comprising a raised edge 41, enclosure in which a battery takes place (not shown). This battery is for example of the large diameter lithium type, which allows a long run time of the watch. It will be noted that to change the battery, the second part 14 is removed from the rod (FIG. 1), then air is blown into the rod hole 13, which drives the ice 32 out of its housing and which allows finally to release movement 25 with its enclosure 24.

La figure 5 est une coupe à 12 heures dans la montre complètement assemblée. On distingue sur ce dessin le bossage 20 faisant partie du cercle 18 et imposant au cadran 28 une position angulaire précise par rapport au cercle. On distingue également sur la figure 5 le bossage 7 faisant partie du boîtier 1, bossage qui est en place dans le logement 19 pratiqué dans le cercle 18 et qui impose au cercle une position angulaire précise par rapport au boîtier.Figure 5 is a section at 12 o'clock in the fully assembled watch. We distinguish in this drawing the boss 20 forming part of the circle 18 and imposing on the dial 28 a precise angular position relative to the circle. We also distinguish in Figure 5 the boss 7 forming part of the housing 1, a boss which is in place in the housing 19 formed in the circle 18 and which imposes on the circle a precise angular position relative to the housing.

La figure 6 est une coupe à 9 heures dans la montre complètement assemblée. On distingue sur ce dessin le bossage 21 faisant partie du cercle 18 et imposant au mouvement 25 une position angulaire précise par rapport au cercle, ce bossage coopérant avec le logement 23.Figure 6 is a section at 9 o'clock in the fully assembled watch. In this drawing, the boss 21 which forms part of the circle 18 and which imposes on the movement 25 a precise angular position relative to the circle is distinguished, this boss cooperating with the housing 23.

La figure 7 est une coupe à 3 heures dans la montre complètement assemblée. Dans ce dessin est représentée la tige de mise à l'heure composée d'une première partie interne 35 couplée au mouvement 25 et d'une seconde partie 14 traversant la carrure 42. Cette tige est du type brisé. Ces première et seconde parties sont couplées en 36, comme cela est décrit par exemple dans le brevet CH-A-524 178. Quand on dispose le mouvement 25 dans le boîtier 1, la tige ne comporte que la première partie 35. Une fois le mouvement en place ou plutôt l'ensemble 44 dont il fait partie, on introduit la seconde partie 14 dans la forure 13 pratiquée dans la carrure dans le sens de la flèche A (figure 1) et ceci jusqu'à encliquetage des deux parties. On remarque encore à la figure 7 que la tige traverse le logement 22 pratiqué dans le cercle.Figure 7 is a section at 3 o'clock in the fully assembled watch. In this drawing is shown the time-setting rod composed of a first internal part 35 coupled to the movement 25 and a second part 14 crossing the middle 42. This rod is of the broken type. These first and second parts are coupled at 36, as described for example in patent CH-A-524 178. When the movement 25 is placed in the housing 1, the rod comprises only the first part 35. Once the movement in place or rather the assembly 44 of which it is a part, the second part 14 is introduced into the bore 13 made in the middle in the direction of the arrow A (FIG. 1) and this until the two parts click into place. Note also in Figure 7 that the rod passes through the housing 22 formed in the circle.

Enfin, la figure 7 montre encore que la seconde partie 14 de la tige est coiffée par une couronne 16, cette dernière étant partiellement engagée dans un logement 12 comportant un toit 37. On comprendra que cette disposition permet d'occulter certaines imprécisions sur la longueur de la tige de sorte que la base de couronne reste toujours à l'intérieur du logement 12. La seconde partie 14 de la tige comporte encore une gorge 33 occupée par une garniture 15 qui assure l'étanchéité de la tige à son passage dans la forure 13. Ainsi, cette construction ne nécessite nullement l'emploi d'un tube chassé dans la carrure comme on le voit habituellement pour assurer cette étanchéité.Finally, FIG. 7 also shows that the second part 14 of the rod is capped by a crown 16, the latter being partially engaged in a housing 12 comprising a roof 37. It will be understood that this arrangement makes it possible to conceal certain inaccuracies over the length of the rod so that the crown base always remains inside the housing 12. The second part 14 of the rod still has a groove 33 occupied by a lining 15 which seals the rod as it passes through the hole 13. Thus, this construction in no way requires the use of a tube driven into the middle as is usually seen to ensure this seal.

La figure 8 est une coupe à 9 heures montrant deux variantes d'exécution par rapport à l'exécution présentée à la figure 6.Figure 8 is a section at 9 o'clock showing two variants of execution compared to the execution presented in Figure 6.

Une première variante consiste à réunir en une seule pièce le réhaut 30 et la garniture 31 de la figure 6, ce qui a pour résultat la pièce unique 38 montrée en figure 8.A first variant consists in bringing together in one piece the flange 30 and the trim 31 of FIG. 6, which results in the single piece 38 shown in FIG. 8.

Une seconde variante consiste à associer au cercle 18 l'enceinte de pile 24 montrés en figure 6. On obtient alors la construction de la figure 8 qui montre une pièce 39 unique faisant office de cercle et d'enceinte de pile à la fois.A second variant consists in associating with the circle 18 the battery enclosure 24 shown in FIG. 6. We then obtain the construction of FIG. 8 which shows a single part 39 acting as a circle and as a battery enclosure at the same time.

La figure 8 permet encore d'expliquer, conjointement avec la figure 9 qui montre en détail la paroi interne du boîtier 1, une disposition importante et caractéristique de la montre selon l'invention. En effet, le boîtier 1, après moulage et frittage, présente des surfaces horizontales planes telles le fond 10 et l'épaulement d'appui 8, et des surfaces inclinées, permettant le démoulage, telles les surfaces 9 et 11 (voir figure 9). Dans la surface inclinée 11, on va meuler une face cylindrique 6 qui servira de référence de centrage au cercle 39 et à la pièce 38 assemblant le réhaut et la garniture d'étanchéité. Pour cela, il faut que la profondeur de meulage soit plus grande que la somme des hauteurs de la garniture, du réhaut et du cercle. Pour n'avoir pas à meuler la paroi inclinée sur une trop grande profondeur, on produira un cercle 39 dont une bonne partie de la hauteur extérieure se trouve en retrait d'une collerette supérieure 56 servant de référence de centrage. On s'arrangera pour que la partie en retrait soit à bonne distance de la face inclinée 11 et que l'escalier 57 existant entre la partie en retrait et la collerette 56 ne touche pas un escalier 55 formé dans la carrure après l'opération de meulage. On est ainsi assuré que la position axiale du cercle 39 n'est donné que par le contact de son bord inférieur 17 avec l'épaulement d'appui 8 pratiqué dans la carrure 42. De plus, on fera observer que les remarques qui viennent d'être faites concernent également l'exécution réalisée selon les figures 4 à 7.FIG. 8 also makes it possible to explain, together with FIG. 9 which shows in detail the internal wall of the case 1, an important and characteristic arrangement of the watch according to the invention. Indeed, the housing 1, after molding and sintering, has flat horizontal surfaces such as the bottom 10 and the support shoulder 8, and inclined surfaces, allowing demolding, such as the surfaces 9 and 11 (see FIG. 9) . In the inclined surface 11, we will grind a cylindrical face 6 which will serve as a centering reference for the circle 39 and for the part 38 assembling the flange and the seal. For this, the grinding depth must be greater than the sum of the heights of the lining, the flange and the circle. In order not to have to grind the inclined wall to a too great depth, a circle 39 will be produced, a good part of the external height of which is set back from an upper flange 56 serving as a centering reference. We will be arranged so that the recessed portion is at a good distance from the inclined face 11 and that the staircase 57 existing between the recessed portion and the flange 56 does not touch a staircase 55 formed in the middle after the grinding operation . It is thus ensured that the axial position of the circle 39 is only given by the contact of its lower edge 17 with the support shoulder 8 made in the middle 42. In addition, it will be observed that the remarks which come from 'be made also relate to the execution performed according to Figures 4 to 7.

La fabrication et le montage de la montre selon l'invention sont ainsi extrêmement simplifiées :
   Le boîtier 1, sortant de moulage, ne doit subir qu'une seule opération d'usinage : celle du meulage de la paroi interne de référence 6. La face interne 10 du fond 43, l'épaulement d'appui 8 sortent de frittage sans avoir à être retouchés. Le boîtier 1 comporte un trou 13 de tige et des trous 5 de barrettes de bracelet qui sortent également de frittage sans devoir être retouchés. Les cornes 2, 2' et 3, 3' n'ont pas à être rapportées puisque moulées avec le boîtier. Le bossage 7 peut aussi être laissé brut.
The manufacture and assembly of the watch according to the invention are thus extremely simplified:
The housing 1, leaving the molding, must undergo only one machining operation: that of the grinding of the internal reference wall 6. The internal face 10 of the base 43, the support shoulder 8 come out of sintering without have to be touched up. The housing 1 has a hole 13 of rod and holes 5 of bracelet bars which also come out of sintering without having to be touched up. The horns 2, 2 'and 3, 3' do not have to be added since they are molded with the housing. The boss 7 can also be left raw.

Le cercle d'encageage 18 réalisé en matière plastique est injecté d'un coup avec tous ses logements et bossages de positionnement, ainsi qu'avec ses surfaces d'appui pour le mouvement et le cadran.The casing ring 18 made of plastic is injected at once with all its positioning housings and bosses, as well as with its bearing surfaces for the movement and the dial.

L'ensemble 44 formé du cercle 18, du mouvement 25, du cadran 28 et des aiguilles forme un tout facile à assembler pour lui-même, par exemple sur machine automatique et facile à assembler ensuite dans le boîtier.The assembly 44 formed by the circle 18, the movement 25, the dial 28 and the hands forms a whole that is easy to assemble for itself, for example on an automatic machine and easy to then assemble in the case.

Toute la montre est montée d'une seul côté et il n'y a pas à la retourner. Aucune vis de fixation n'est utilisée pour l'assemblage.The whole watch is mounted on one side and there is no need to turn it over. No fixing screw is used for assembly.

Claims (12)

Montre-bracelet comportant en combinaison : - un boîtier (1) comprenant une carrure-lunette (42), deux paires de cornes (2, 2'; 3, 3') attenantes à la carrure pour servir chacune d'attache à un des brins d'un bracelet et un fond (43), la carrure-lunette, les cornes et le fond étant faits d'une seule pièce, - un ensemble (44) prenant place dans le boîtier et comprenant un cercle d'encageage (18, 39), un mouvement (25) placé dans le cercle et un cadran (28) surmontant le cercle, - des moyens pour positionner angulairement (7, 19), radialement (6) et axialement (8) le cercle par rapport au boîtier, - des moyens (21, 23; 20, 29) pour positionner angulairement le mouvement et le cadran par rapport au cercle, - des moyens (45) pour fixer le cadran dans le cercle et emprisonner ainsi le mouvement pour former ledit ensemble, - un réhaut (30) posé sur ledit ensemble, et - une glace (32) posée sur ledit réhaut, la glace étant fixée à l'intérieur de la carrure-lunette au moyen d'une garniture d'étanchéité (31) disposée entre la tranche (46) que présente ladite glace et la paroi interne (6) que présente ladite carrure-lunette. Wristwatch comprising in combination: - a case (1) comprising a middle-bezel (42), two pairs of horns (2, 2 '; 3, 3') adjoining the middle to each serve to attach to one of the strands of a bracelet and a back (43), the middle-bezel, the horns and the back being made in one piece, - an assembly (44) taking place in the housing and comprising a casing circle (18, 39), a movement (25) placed in the circle and a dial (28) surmounting the circle, means for angularly positioning (7, 19), radially (6) and axially (8) the circle relative to the housing, - means (21, 23; 20, 29) for angularly positioning the movement and the dial relative to the circle, - means (45) for fixing the dial in the circle and thus trapping the movement to form said assembly, - a flange (30) placed on said assembly, and - a lens (32) placed on said flange, the lens being fixed inside the middle-bezel by means of a seal (31) disposed between the edge (46) that said lens and the wall internal (6) that has said middle-bezel. Montre-bracelet selon la revendication 1, caractérisée par le fait que le boîtier (1) est fait en matière injectée et frittée.Wrist watch according to claim 1, characterized in that the case (1) is made of injected and sintered material. Montre-bracelet selon la revendication 2, caractérisée par le fait que le boîtier (1) est en céramique.Wrist watch according to claim 2, characterized in that the case (1) is made of ceramic. Montre-bracelet selon la revendication 1, caractérisée par le fait que les moyens pour positionner angulairement, radialement et axialement le cercle (18) par rapport au boîtier (1) comportent respectivement un bossage (7) pratiqué à l'intérieur de la carrurelunette (42) pour coopérer avec un logement (19) pratiqué dans le cercle, un usinage pratiqué dans la paroi interne (6) de la carrurelunette pour centrer ledit cercle et un épaulement d'appui (8) pratiqué à l'intérieur de la carrure-lunette sur lequel repose le bord inférieur (17) que présente ledit cercle.Wristwatch according to claim 1, characterized in that the means for angularly, radially and axially positioning the circle (18) relative to the housing (1) respectively comprise a boss (7) formed inside the window frame ( 42) in order to cooperate with a housing (19) formed in the circle, a machining operation carried out in the internal wall (6) of the window frame to center said circle and a support shoulder (8) formed inside the middle part bezel on which the lower edge (17) that said circle rests. Montre-bracelet selon la revendication 1, caractérisée par le fait que les moyens pour positionner angulairement le mouvement (25) par rapport au cercle (18) comportent un bossage (21) pratiqué à l'intérieur du cercle, ledit bossage étant arrangé pour coopérer avec un logement (23) pratiqué dans la périphérie du mouvement.Wrist watch according to claim 1, characterized in that the means for angularly positioning the movement (25) relative to the circle (18) have a boss (21) formed inside the circle, said boss being arranged to cooperate with a housing (23) made in the periphery of the movement. Montre-bracelet selon la revendication 1, caractérisée par le fait que les moyens pour positionner angulairement le cadran (28) par rapport au cercle (18) comportent un bossage (20) pratiqué à l'intérieur du cercle, ledit bossage étant arrangé pour coopérer avec un logement (29) pratiqué dans la périphérie du cadran.Wrist watch according to claim 1, characterized in that the means for angularly positioning the dial (28) relative to the circle (18) comprise a boss (20) formed inside the circle, said boss being arranged to cooperate with a housing (29) formed in the periphery of the dial. Montre-bracelet selon la revendication 1, caractérisée par le fait que les moyens pour fixer le cadran (28) dans le cercle consistent en un rabattement (45) du bord supérieur (47) que présente le cercle (18) sur la périphérie du cadran.Wrist watch according to claim 1, characterized in that the means for fixing the dial (28) in the circle consist of a folding (45) of the upper edge (47) that presents the circle (18) on the periphery of the dial . Montre-bracelet selon la revendication 1, caractérisée par le fait que sous le mouvement (25) est fixée une enceinte (24) comprenant un bord relevé (41) dans laquelle prend place une pile.Wristwatch according to claim 1, characterized in that under the movement (25) is fixed an enclosure (24) comprising a raised edge (41) in which a battery takes place. Montre-bracelet selon la revendication 1, caractérisée par le fait que sous le cercle (39) se trouve une enceinte (24) comprenant un bord relevé (41) dans laquelle prend place une pile, ledit cercle et ladite enceinte étant faits d'une seule pièce.Wristwatch according to claim 1, characterized in that under the circle (39) is an enclosure (24) comprising a raised edge (41) in which a battery takes place, said circle and said enclosure being made of a single piece. Montre-bracelet selon la revendication 1, caractérisée par le fait que le réhaut est fait d'une pièce (38) avec la garniture d'étanchéité.Wristwatch according to claim 1, characterized in that the flange is made in one piece (38) with the seal. Montre-bracelet selon la revendication 1, caractérisée par le fait que le mouvement (25) comporte une tige (35, 14) de commande terminée par une couronne (16), la tige étant du type brisé présentant une première partie (35) intérieure au mouvement et une seconde partie (14) traversant la carrure-lunette (42).Wristwatch according to claim 1, characterized in that the movement (25) comprises a control rod (35, 14) terminated by a crown (16), the rod being of the broken type having an inner first part (35) to the movement and a second part (14) passing through the middle-bezel (42). Montre-bracelet selon la revendication 11, caractérisée par le fait que la seconde partie (14) de la tige traverse une forure (13) pratiquée dans la carrure-lunette (42) et que ladite seconde partie porte une gorge (33) dans laquelle prend place une garniture (15) pour assurer l'étanchéité de la tige à son passage dans la carrure-lunette.Wristwatch according to claim 11, characterized in that the second part (14) of the rod passes through a bore (13) formed in the middle part of the bezel (42) and that said second part carries a groove (33) in which takes place a gasket (15) to seal the rod as it passes through the middle part.
EP92110024A 1991-07-03 1992-06-15 Wrist-watch comprising a bezel-middle, horns and a back-cover all made in one piece Withdrawn EP0521327A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH1965/91 1991-07-03
CH1965/91A CH681844B5 (en) 1991-07-03 1991-07-03 Wristwatch including a middle-bezel, horns and a room made background.

Publications (1)

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EP0521327A1 true EP0521327A1 (en) 1993-01-07

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EP92110024A Withdrawn EP0521327A1 (en) 1991-07-03 1992-06-15 Wrist-watch comprising a bezel-middle, horns and a back-cover all made in one piece

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JP (1) JPH05196749A (en)
KR (1) KR930002905A (en)
CN (1) CN1068431A (en)
CH (1) CH681844B5 (en)

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CH685903GA3 (en) * 1993-11-25 1995-11-15 Vacuum Chronometer Corp Glass mounting for wrist watch casing
EP4198646A1 (en) * 2021-12-16 2023-06-21 Omega SA Watertight watch case with fastening seal

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HK1083430A2 (en) * 2005-11-11 2006-06-30 Ng Hoi San Loby External watch case with lens made of artificial crystal glass and the manufacturing method for the same
WO2015144382A1 (en) * 2014-03-25 2015-10-01 Eta Sa Manufacture Horlogère Suisse Timepiece provided with a dial and associated attachment method
EP3822494A1 (en) * 2019-11-13 2021-05-19 ETA SA Manufacture Horlogère Suisse Member and device for attaching a disc

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Publication number Priority date Publication date Assignee Title
CH685903GA3 (en) * 1993-11-25 1995-11-15 Vacuum Chronometer Corp Glass mounting for wrist watch casing
EP4198646A1 (en) * 2021-12-16 2023-06-21 Omega SA Watertight watch case with fastening seal

Also Published As

Publication number Publication date
JPH05196749A (en) 1993-08-06
KR930002905A (en) 1993-02-23
CH681844GA3 (en) 1993-06-15
CH681844B5 (en) 1993-12-15
CN1068431A (en) 1993-01-27

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