EP4141582A1 - Watch case comprising a bottom oriented in a predetermined angular position, watch comprising said case and method for assembling such a case - Google Patents

Watch case comprising a bottom oriented in a predetermined angular position, watch comprising said case and method for assembling such a case Download PDF

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Publication number
EP4141582A1
EP4141582A1 EP21193001.1A EP21193001A EP4141582A1 EP 4141582 A1 EP4141582 A1 EP 4141582A1 EP 21193001 A EP21193001 A EP 21193001A EP 4141582 A1 EP4141582 A1 EP 4141582A1
Authority
EP
European Patent Office
Prior art keywords
watch case
caseband
ring
watch
case
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.)
Pending
Application number
EP21193001.1A
Other languages
German (de)
French (fr)
Inventor
Philipp Tschumi
Philippe SCHERRER
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 Research and Development SA
Original Assignee
Swatch Group Research and Development SA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Swatch Group Research and Development SA filed Critical Swatch Group Research and Development SA
Priority to EP21193001.1A priority Critical patent/EP4141582A1/en
Priority to US17/659,362 priority patent/US20230068766A1/en
Priority to KR1020220058552A priority patent/KR20230030510A/en
Priority to JP2022079969A priority patent/JP7430215B2/en
Priority to CN202211025430.XA priority patent/CN115729087A/en
Publication of EP4141582A1 publication Critical patent/EP4141582A1/en
Pending legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G04—HOROLOGY
    • G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
    • G04B37/00—Cases
    • G04B37/0008—Cases for pocket watches and 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
    • G04B37/0008—Cases for pocket watches and wrist watches
    • G04B37/0033—Cases for pocket watches and wrist watches with cover or bottom which can slide or turn (without a spring action)
    • 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
    • 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
    • G04B37/113—Hermetic sealing of openings, joints, passages or slits of the back cover of pocket or wrist watches without special hermetic sealing pieces

Definitions

  • the invention relates to the field of horology, and in particular to the components of a watch case.
  • the invention relates to a watch case comprising a back oriented in a predefined angular position, a watch comprising said case and a method of mounting such a case.
  • Watch cases have a middle part on either side of which are arranged a crystal and a back.
  • the back is generally fixed to the caseband by screwing, and for this purpose comprises a thread intended to cooperate with an internal thread made in the caseband.
  • This type of fixing does not make it possible to control the orientation of the caseback relative to the middle part, and in particular relative to a vertical axis 12 o'clock - 6 o'clock, when they are fixed to each other.
  • the invention solves the aforementioned drawbacks by proposing a solution making it possible to fix a back to a middle part in a single predefined relative angular position.
  • the present invention relates to a watch case comprising a middle part comprising a first opening receiving a glass, opposite a second opening receiving a bottom, the bottom is held in abutment against an annular bearing surface of the middle part by a threaded ring cooperating by screwing with said middle part, the back comprising a single first indexing means configured to cooperate with a single second indexing means with which the middle part is equipped so as to immobilize the said back in rotation according to a single angular position with respect to the middle part .
  • the back does not require adjustment of its angular positioning relative to the middle part after having been fixed to the middle part insofar as it is locked in rotation in a single predefined position.
  • the present invention also makes it possible to control the tightening torque of the back, and in particular of the ring, since when screwing the ring onto the caseband, the back is oriented in the predefined position.
  • the orientation of the bottom is achieved with great precision thanks to the cooperation between the first and second indexing means, said indexing means playing a keying role insofar as they make it possible to immobilize the bottom in a single position. .
  • This feature also guarantees simplicity of production and assembly of the watch case, which contributes to reducing the manufacturing costs of watches comprising this case.
  • first and second indexing means blocks the mobility of the bottom in rotation and that the ring blocks the mobility of the bottom in translation.
  • the invention may also include one or more of the following characteristics, taken separately or in all technically possible combinations.
  • the first and the second indexing means are formed by a lug/notch couple.
  • the caseband comprises an internal thread with which cooperates by screwing an external thread with which the ring is provided.
  • the back has a peripheral lip extending radially around the periphery of said back, and being arranged to bear against the annular bearing surface of the middle part.
  • the ring comprises an annular portion comprising the external threading and an end surface by which it bears against the peripheral lip of the bottom.
  • the peripheral lip extends from a tubular wall materializing an upper end of the back, the tubular wall being engaged in a bore of the caseband.
  • the notch is arranged on the tubular wall and extends axially from a free end of said tubular wall, said notch being configured to cooperate with the lug, said lug being arranged on the bore.
  • a seal is arranged between the caseband and the back, and is interposed between a shoulder formed by the junction between the tubular wall and the peripheral lip, and an annular recess of the caseband formed at the junction between the annular seat and bore.
  • the ring comprises a radial portion connected to the annular portion and having an internal radial surface arranged opposite an annular bearing surface of the bottom.
  • the radial portion of the ring comprises a lower cylindrical surface facing which is arranged a lower cylindrical surface of the bottom of complementary shape.
  • the present invention relates to a watch comprising a watch movement housed in an internal volume of a watch case as described previously, said internal volume being defined between the middle part, the crystal and the back.
  • the present invention relates to a method for assembling a watch case as described above, in which the back is engaged in the second opening of the middle part so that the first indexing means cooperates with the second indexing means, then the ring is screwed to the caseband so as to immobilize said back resting against said caseband.
  • FIG. 1 shows a cross-sectional view of a watch 10 comprising a watch case 100 according to the present invention.
  • the case 100 comprises a middle part 110 comprising a first opening receiving a crystal 120, opposite a second opening receiving a bottom 130; crystal 120, back 130 and middle 110 defining a volume inside which a watch movement is arranged in a manner known to those skilled in the art.
  • the case 100 comprises a ring 140 adapted to be fixed to the caseband 110 while maintaining the back 130 in position against the latter.
  • the ring has a central through hole through which the bottom is visible, as shown in the figures 1 to 3 .
  • back 130, the ring 140 and the caseband 110 have shapes of geometry of revolution, whose axes of revolution are coaxial, as visible on the figure 2 And 3 .
  • the ring 140 has an external thread 141 by which it is intended to cooperate by screwing with an internal thread 111 made in the caseband 110, at the level of the second opening.
  • the ring 140 has, at one of its ends called the "upper end", an axial annular portion defined by an end surface 142 connecting a cylindrical surface upper 143 and an outer surface, the external thread 141 being made on the outer surface of the annular portion.
  • bottom 130 has a peripheral lip 131 extending radially around the periphery of bottom 130, from a tubular wall 132 materializing an upper end of said bottom 130, said peripheral lip 131 being arranged to bear against an annular bearing 112 of the caseband 110. Furthermore, the tubular wall 132 is engaged in a bore 113 of the caseband 110 when the back is fixed to said caseband 110.
  • the bottom 130 may comprise a plurality of peripheral lips (not shown in the figures) each extending radially around a portion of the periphery of the bottom 130, in the same plane.
  • the ring 140 is configured so as to bear against the peripheral lip 131 of the back 130 by the end surface 142 of the annular portion, when said ring 140 is screwed with the middle part 110.
  • the back 130 comprises a single first indexing means configured to cooperate with a single second indexing means with which the caseband 110 is provided, so as to immobilize said caseback 130 in a single angular position with respect to the caseband 110 when the ring 140 fixes the back 130 against said middle part 110.
  • first and the second indexing means are formed by a lug/notch couple.
  • the bottom 130 is provided with a notch 133 arranged on the tubular wall 132, said notch extending axially from a free end of said tubular wall 132.
  • the notch 133 is intended to cooperate with a lug 114 extending inside the middle part 110. More particularly, the lug 114 is arranged on the bore 113 and has a shape complementary to that of the notch 133 , to within mechanical play, so as to be able to engage inside the notch 133 when the tubular wall 132 of the bottom 130 is introduced into the bore 113.
  • the notch 133 can be arranged in the caseband 110 and the lug 114 can be arranged on the back 130, so analogous to the preferred embodiment shown in the figures.
  • the ring 140 includes a radial portion having an inner radial surface 144 intended to be arranged facing an annular bearing surface 134 of the back 130, when the ring 140 is screwed to the internal thread 111 of the caseband 110.
  • the radial portion is connected to the annular portion, as shown in the figure 1 .
  • the fixing ring 140 can possibly bear against the peripheral annular surface 134 of the bottom 130 in addition to bearing against the peripheral lip 131.
  • This annular surface 134 is connected to the peripheral lip 131 by an upper cylindrical surface 135 intended to be arranged facing the upper cylindrical surface 143 of the annular portion of the ring 140, when the back 130 is fixed to the caseband 110.
  • a seal 150 is arranged between the caseband 110 and the back 130, and is interposed between a shoulder formed by the junction between the tubular wall 132 and the peripheral lip 131, and an annular recess of the caseband 110 formed at the junction between the annular surface 112 and the bore 113.
  • the radial portion of the ring 140 comprises a lower cylindrical surface 145 facing which is arranged a lower cylindrical surface 136 of the bottom 130 of complementary shape.
  • the back 130 When the back 130 is fixed on the middle 110, the back 130 is first engaged in the second opening of the middle 110 so that the lug 114 cooperates with the notch 133, the tubular wall 132 of the back 130 being engaged in the bore 113 of the middle part 110 until the peripheral lip 131 is arranged in abutment against the annular bearing surface 112.
  • the bottom 130 and the middle part 110 then form a housing defined between the upper cylindrical surface 135, the peripheral lip 131 and the internal thread 111 of the middle part 110, in which the ring 140 is intended to be engaged.
  • the ring 140 is then brought to cooperate with the internal thread 111 of the middle part 110, until the peripheral lip 131 is tightened against the annular surface 112 and reaches a predetermined tightening torque sufficient to fix rigidly, that is to say according to a mechanical connection of the recessed type, the back 130, the ring 140 and the caseband 110 together.
  • the ring 140 can comprise a fillet or a chamfer at the junction between the upper cylindrical surface 143 of the annular portion and the end surface 142, and the bottom 130 can also comprise a fillet or a chamfer at the junction between the annular bearing surface 134 and the upper cylindrical surface 135, so as to facilitate the introduction of the ring 140 within the housing formed between the bottom 130 and the middle part 110.
  • a chamfer or a fillet can be made at the junction between the cylindrical surface of the radial portion of the ring 140 and the inner radial surface 144 of said radial portion.
  • the ring 140 comprises on an outer face opposite to the internal volume of the watch case 100, radial notches 146 intended to cooperate with a tool manipulated by a user. Thanks to the radial notches 146, the ring 140 can be screwed or unscrewed by manipulation of the tool, so as to fix the ring 140 and the bottom 130 to the caseband 110, or on the contrary, so as to separate them from said caseband 110 .

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electric Clocks (AREA)
  • Closures For Containers (AREA)
  • Packages (AREA)
  • Adornments (AREA)

Abstract

La présente invention concerne une boite (100) de montre comprenant une carrure (110) comportant une première ouverture recevant une glace (120), opposée à une seconde ouverture recevant un fond (130), la boite (100) de montre étant caractérisée en ce que le fond (130) est maintenu en appui contre une portée annulaire (112) de la carrure (110) par une bague (140) filetée coopérant par vissage avec ladite carrure (110), le fond (130) comprenant un premier moyen d'indexation (133) configuré pour coopérer avec un second moyen d'indexation (114) dont est dotée la carrure (110) de sorte à immobiliser ledit fond (130) en rotation selon une unique position angulaire par rapport à la carrure (110).The present invention relates to a watch case (100) comprising a middle part (110) comprising a first opening receiving a crystal (120), opposite a second opening receiving a back (130), the watch case (100) being characterized in that the back (130) is held against an annular bearing surface (112) of the middle (110) by a threaded ring (140) cooperating by screwing with the said middle (110), the back (130) comprising a first means (133) configured to cooperate with a second indexing means (114) with which the caseband (110) is fitted so as to immobilize the said back cover (130) in rotation according to a single angular position with respect to the caseband (110 ).

Description

Domaine technique de l'inventionTechnical field of the invention

L'invention relève du domaine de l'horlogerie, et notamment des composants d'une boite de montre.The invention relates to the field of horology, and in particular to the components of a watch case.

Plus particulièrement, l'invention concerne une boite de montre comportant un fond orienté dans une position angulaire prédéfinie, une montre comprenant ladite boite et un procédé de montage d'une telle boite.More particularly, the invention relates to a watch case comprising a back oriented in a predefined angular position, a watch comprising said case and a method of mounting such a case.

Arrière-plan technologiqueTechnology background

Les boites de montre comportent une carrure de part et d'autre de laquelle sont disposés une glace et un fond.Watch cases have a middle part on either side of which are arranged a crystal and a back.

Le fond est généralement fixé à la carrure par vissage, et comporte à cet effet un filetage destiné à coopérer avec un taraudage réalisé dans la carrure.The back is generally fixed to the caseband by screwing, and for this purpose comprises a thread intended to cooperate with an internal thread made in the caseband.

Ce type de fixation ne permet pas de maîtriser l'orientation du fond par rapport à la carrure, et en particulier par rapport à un axe vertical 12 heures - 6 heures, lorsqu'ils sont fixés l'un à l'autre.This type of fixing does not make it possible to control the orientation of the caseback relative to the middle part, and in particular relative to a vertical axis 12 o'clock - 6 o'clock, when they are fixed to each other.

Un tel inconvénient est particulièrement préjudiciable pour des raisons esthétiques et de qualité perçue, lorsque le fond comporte des éléments décoratifs ou des inscriptions.Such a drawback is particularly detrimental for aesthetic and perceived quality reasons, when the background includes decorative elements or inscriptions.

Les solutions développées par l'état de la technique sont généralement complexes et couteuses à mettre en œuvre.The solutions developed by the state of the art are generally complex and expensive to implement.

Notamment, il est connu d'usiner de façon spécifique un taraudage dans la carrure et un filetage sur le fond de sorte qu'ils soient associés l'un à l'autre afin que lorsque ledit fond est fixé à ladite carrure, la position angulaire de ce dernier soit connue et toujours identique. Cependant, en pratique, cette solution présente des difficultés tant au niveau du processus de fabrication, qu'au niveau de l'aspect après-vente, par exemple s'il est nécessaire de remplacer un fond éventuellement perdu ou détérioré.In particular, it is known to specifically machine a thread in the caseband and a thread on the back so that they are associated with each other so that when said caseback is fixed to said caseband, the angular position of the latter is known and always identical. However, in practice, this solution presents difficulties both at the level of the manufacturing process and at the level of the after-sales aspect, for example if it is necessary to replace a possibly lost or damaged bottom.

Résumé de l'inventionSummary of the invention

L'invention résout les inconvénients précités en proposant une solution permettant de fixer un fond à une carrure dans une unique position angulaire relative prédéfinie.The invention solves the aforementioned drawbacks by proposing a solution making it possible to fix a back to a middle part in a single predefined relative angular position.

A cet effet, la présente invention concerne une boite de montre comprenant une carrure comportant une première ouverture recevant une glace, opposée à une seconde ouverture recevant un fond, le fond est maintenu en appui contre une portée annulaire de la carrure par une bague filetée coopérant par vissage avec ladite carrure, le fond comprenant un unique premier moyen d'indexation configuré pour coopérer avec un unique second moyen d'indexation dont est dotée la carrure de sorte à immobiliser ledit fond en rotation selon une unique position angulaire par rapport à la carrure.To this end, the present invention relates to a watch case comprising a middle part comprising a first opening receiving a glass, opposite a second opening receiving a bottom, the bottom is held in abutment against an annular bearing surface of the middle part by a threaded ring cooperating by screwing with said middle part, the back comprising a single first indexing means configured to cooperate with a single second indexing means with which the middle part is equipped so as to immobilize the said back in rotation according to a single angular position with respect to the middle part .

Grâce à ces caractéristiques, le fond ne nécessite pas d'ajustement de son positionnement angulaire par rapport à la carrure après avoir été fixé à la carrure dans la mesure où il est bloqué en rotation dans une unique position prédéfinie.Thanks to these characteristics, the back does not require adjustment of its angular positioning relative to the middle part after having been fixed to the middle part insofar as it is locked in rotation in a single predefined position.

La présente invention permet également de maîtriser le couple de serrage du fond, et en particulier de la bague, puisque lors du vissage de la bague sur la carrure, le fond est orienté dans la position prédéfinie.The present invention also makes it possible to control the tightening torque of the back, and in particular of the ring, since when screwing the ring onto the caseband, the back is oriented in the predefined position.

L'orientation du fond est réalisé avec une grande précision grâce à la coopération entre les premier et second moyens d'indexation, lesdits moyens d'indexation jouant un rôle de détrompeur dans la mesure où ils permettent d'immobiliser le fond dans une unique position.The orientation of the bottom is achieved with great precision thanks to the cooperation between the first and second indexing means, said indexing means playing a keying role insofar as they make it possible to immobilize the bottom in a single position. .

Cette particularité garantie également une simplicité de production et d'assemblage de la boite de montre, ce que participe à réduire les coûts de fabrication de montres comprenant ce boitier.This feature also guarantees simplicity of production and assembly of the watch case, which contributes to reducing the manufacturing costs of watches comprising this case.

On comprend des caractéristiques de la présente invention que les premier et second moyens d'indexation bloque la mobilité du fond en rotation et que la bague bloque la mobilité du fond en translation.It is understood from the characteristics of the present invention that the first and second indexing means blocks the mobility of the bottom in rotation and that the ring blocks the mobility of the bottom in translation.

Dans des modes particuliers de réalisation, l'invention peut comporter en outre l'une ou plusieurs des caractéristiques suivantes, prises isolément ou selon toutes les combinaisons techniquement possibles.In particular embodiments, the invention may also include one or more of the following characteristics, taken separately or in all technically possible combinations.

Dans des modes particuliers de réalisation, le premier et le second moyens d'indexation sont formés par un couple ergot/encoche.In particular embodiments, the first and the second indexing means are formed by a lug/notch couple.

Dans des modes particuliers de réalisation, la carrure comporte un taraudage avec lequel coopère par vissage un filetage extérieur dont est dotée la bague.In particular embodiments, the caseband comprises an internal thread with which cooperates by screwing an external thread with which the ring is provided.

Dans des modes particuliers de réalisation, le fond présente une lèvre périphérique s'étendant radialement autour de la périphérie dudit fond, et étant agencée pour reposer en appui contre la portée annulaire de la carrure.In particular embodiments, the back has a peripheral lip extending radially around the periphery of said back, and being arranged to bear against the annular bearing surface of the middle part.

Dans des modes particuliers de réalisation, la bague comporte une portion annulaire comprenant le filetage extérieur et une surface d'extrémité par laquelle elle prend appui contre la lèvre périphérique du fond.In particular embodiments, the ring comprises an annular portion comprising the external threading and an end surface by which it bears against the peripheral lip of the bottom.

Dans des modes particuliers de réalisation, la lèvre périphérique s'étend depuis une paroi tubulaire matérialisant une extrémité supérieure du fond, la paroi tubulaire étant engagée dans un alésage de la carrure.In particular embodiments, the peripheral lip extends from a tubular wall materializing an upper end of the back, the tubular wall being engaged in a bore of the caseband.

Dans des modes particuliers de réalisation, l'encoche est agencée sur la paroi tubulaire et s'étend axialement depuis une extrémité libre de ladite paroi tubulaire, ladite encoche étant configurée pour coopérer avec l'ergot, ledit ergot étant agencé sur l'alésage.In particular embodiments, the notch is arranged on the tubular wall and extends axially from a free end of said tubular wall, said notch being configured to cooperate with the lug, said lug being arranged on the bore.

Dans des modes particuliers de réalisation, un joint est agencé entre la carrure et le fond, et est interposé entre un épaulement formé par la jonction entre la paroi tubulaire et la lèvre périphérique, et un renfoncement annulaire de la carrure formé à la jonction entre la portée annulaire et l'alésage.In particular embodiments, a seal is arranged between the caseband and the back, and is interposed between a shoulder formed by the junction between the tubular wall and the peripheral lip, and an annular recess of the caseband formed at the junction between the annular seat and bore.

Dans des modes particuliers de réalisation, la bague comporte une portion radiale reliée à la portion annulaire et présentant une surface radiale interne agencée en vis-à-vis d'une portée annulaire du fond.In particular embodiments, the ring comprises a radial portion connected to the annular portion and having an internal radial surface arranged opposite an annular bearing surface of the bottom.

Dans des modes particuliers de réalisation, la portion radiale de la bague comporte une surface cylindrique inférieure en regard de laquelle est agencée une surface cylindrique inférieure du fond de forme complémentaire.In particular embodiments, the radial portion of the ring comprises a lower cylindrical surface facing which is arranged a lower cylindrical surface of the bottom of complementary shape.

Selon un autre objet, la présente invention concerne une montre comprenant un mouvement horloger logé dans un volume interne d'une boite de montre tel que décrit précédemment, ledit volume interne étant défini entre la carrure, la glace et le fond.According to another object, the present invention relates to a watch comprising a watch movement housed in an internal volume of a watch case as described previously, said internal volume being defined between the middle part, the crystal and the back.

Selon encore un autre objet, la présente invention concerne un procédé de montage d'une boite de montre telle que décrite précédemment, dans laquelle le fond est engagé dans la seconde ouverture de la carrure de sorte que le premier moyen d'indexation coopère avec le second moyen d'indexation, puis la bague est vissée à la carrure de sorte à immobiliser ledit fond en appui contre ladite carrure.According to yet another object, the present invention relates to a method for assembling a watch case as described above, in which the back is engaged in the second opening of the middle part so that the first indexing means cooperates with the second indexing means, then the ring is screwed to the caseband so as to immobilize said back resting against said caseband.

Brève description des figuresBrief description of figures

D'autres caractéristiques et avantages de l'invention apparaîtront à la lecture de la description détaillée suivante donnée à titre d'exemple nullement limitatif, en référence aux dessins annexés dans lesquels :

  • la figure 1 représente une vue en coupe transversale d'une montre comprenant une boite selon un exemple préféré de réalisation de l'invention ;
  • la figure 2 représente une vue en perspective éclatée en plongée de la boite de la figure 1 sur laquelle un unique premier moyen d'indexation dont est doté le fond est visible ;
  • la figure 3 représente une vue en perspective éclatée en contre-plongée de la boite de la figure 1 sur laquelle un unique second moyen d'indexation dont est dotée la carrure est visible.
Other characteristics and advantages of the invention will appear on reading the following detailed description given by way of non-limiting example, with reference to the appended drawings in which:
  • there figure 1 shows a cross-sectional view of a watch comprising a case according to a preferred embodiment of the invention;
  • there picture 2 represents an exploded perspective view from above of the box of the figure 1 on which a single first indexing means with which the bottom is provided is visible;
  • there picture 3 represents an exploded perspective view from below of the box of the figure 1 on which a single second indexing means with which the middle part is equipped is visible.

Description détaillée de l'inventionDetailed description of the invention

La figure 1 représente une vue en coupe transversale d'une montre 10 comportant une boite 100 de montre selon la présente invention.There figure 1 shows a cross-sectional view of a watch 10 comprising a watch case 100 according to the present invention.

La boite 100 comporte une carrure 110 comportant une première ouverture recevant une glace 120, opposée à une seconde ouverture recevant un fond 130 ; la glace 120, le fond 130 et la carrure 110 définissant un volume à l'intérieur duquel est agencé un mouvement horloger de façon connue de l'homme du métier.The case 100 comprises a middle part 110 comprising a first opening receiving a crystal 120, opposite a second opening receiving a bottom 130; crystal 120, back 130 and middle 110 defining a volume inside which a watch movement is arranged in a manner known to those skilled in the art.

Le mouvement horloger et les autres composants horlogers utilisés dans une boite 100 étant connus de l'homme du métier et ne faisant pas partie de la présente invention, ils ne sont pas décrits ci-après.Since the watch movement and the other watch components used in a box 100 are known to those skilled in the art and do not form part of the present invention, they are not described below.

La boite 100 comporte une bague 140 adaptée à être fixée à la carrure 110 tout en maintenant le fond 130 en position contre cette dernière.The case 100 comprises a ring 140 adapted to be fixed to the caseband 110 while maintaining the back 130 in position against the latter.

La bague présente un orifice central traversant à travers lequel le fond est visible, comme le montrent les figures 1 à 3.The ring has a central through hole through which the bottom is visible, as shown in the figures 1 to 3 .

Il y a lieu de noter que le fond 130, la bague 140 et la carrure 110 présentent des formes de géométrie de révolution, dont les axes de révolution sont coaxiaux, tel que visible sur les figures 2 et 3.It should be noted that the back 130, the ring 140 and the caseband 110 have shapes of geometry of revolution, whose axes of revolution are coaxial, as visible on the figure 2 And 3 .

La bague 140 comporte un filetage extérieur 141 par lequel elle est destinée à coopérer par vissage avec un taraudage 111 réalisé dans la carrure 110, au niveau de la seconde ouverture.The ring 140 has an external thread 141 by which it is intended to cooperate by screwing with an internal thread 111 made in the caseband 110, at the level of the second opening.

Encore plus précisément, dans l'exemple de réalisation préféré de la présente invention, la bague 140 présente, à l'une de ses extrémités dite « extrémité supérieure », une portion annulaire axiale définie par une surface d'extrémité 142 reliant une surface cylindrique supérieure 143 et une surface externe, le filetage extérieur 141 étant réalisé sur la surface externe de la portion annulaire.Even more specifically, in the preferred embodiment of the present invention, the ring 140 has, at one of its ends called the "upper end", an axial annular portion defined by an end surface 142 connecting a cylindrical surface upper 143 and an outer surface, the external thread 141 being made on the outer surface of the annular portion.

Les termes « supérieur » et « inférieur » sont relatifs dans le présent texte à l'orientation dans l'espace d'une boiter 100 telle que représentée par les figures 1 à 3, la glace 120 étant agencée au-dessus du fond 130.The terms “upper” and “lower” are relative in the present text to the orientation in space of a box 100 as represented by the figures 1 to 3 , the mirror 120 being arranged above the bottom 130.

En outre, le fond 130 présente une lèvre périphérique 131 s'étendant radialement autour de la périphérie du fond 130, depuis une paroi tubulaire 132 matérialisant une extrémité supérieure dudit fond 130, ladite lèvre périphérique 131 étant agencée pour reposer en appui contre une portée annulaire 112 de la carrure 110. Par ailleurs, la paroi tubulaire 132 est engagée dans un alésage 113 de la carrure 110 lorsque le fond est fixé à ladite carrure 110.In addition, bottom 130 has a peripheral lip 131 extending radially around the periphery of bottom 130, from a tubular wall 132 materializing an upper end of said bottom 130, said peripheral lip 131 being arranged to bear against an annular bearing 112 of the caseband 110. Furthermore, the tubular wall 132 is engaged in a bore 113 of the caseband 110 when the back is fixed to said caseband 110.

De manière alternative, le fond 130 peut comporter une pluralité de lèvres périphériques (non illustrées sur les figures) s'étendant radialement chacune autour d'une portion de la périphérie du fond 130, dans un même plan.Alternatively, the bottom 130 may comprise a plurality of peripheral lips (not shown in the figures) each extending radially around a portion of the periphery of the bottom 130, in the same plane.

Comme le montre la vue en coupe de la figure 1, la bague 140 est configurée de sorte à prendre appui contre la lèvre périphérique 131 du fond 130 par la surface d'extrémité 142 de la portion annulaire, lorsque ladite bague 140 est vissée avec la carrure 110.As shown in the sectional view of the figure 1 , the ring 140 is configured so as to bear against the peripheral lip 131 of the back 130 by the end surface 142 of the annular portion, when said ring 140 is screwed with the middle part 110.

Avantageusement, le fond 130 comprend un unique premier moyen d'indexation configuré pour coopérer avec un unique second moyen d'indexation dont est dotée la carrure 110, de sorte à immobiliser ledit fond 130 selon une unique position angulaire par rapport à la carrure 110 lorsque la bague 140 fixe le fond 130 contre ladite carrure 110.Advantageously, the back 130 comprises a single first indexing means configured to cooperate with a single second indexing means with which the caseband 110 is provided, so as to immobilize said caseback 130 in a single angular position with respect to the caseband 110 when the ring 140 fixes the back 130 against said middle part 110.

Plus particulièrement, le premier et le second moyens d'indexation sont formés par un couple ergot/encoche.More particularly, the first and the second indexing means are formed by a lug/notch couple.

Dans l'exemple de réalisation représenté sur les figures 2 et 3, le fond 130 est doté d'une encoche 133 agencée sur la paroi tubulaire 132, ladite encoche s'étendant axialement depuis une extrémité libre de ladite paroi tubulaire 132.In the exemplary embodiment shown in the figure 2 And 3 , the bottom 130 is provided with a notch 133 arranged on the tubular wall 132, said notch extending axially from a free end of said tubular wall 132.

L'encoche 133 est destinée à coopérer avec un ergot 114 s'étendant à l'intérieur de la carrure 110. Plus particulièrement, l'ergot 114 est agencé sur l'alésage 113 et présente une forme complémentaire à celle de l'encoche 133, aux jeux mécaniques près, de sorte à pouvoir s'engager à l'intérieur de l'encoche 133 lorsque la paroi tubulaire 132 du fond 130 est introduite dans l'alésage 113.The notch 133 is intended to cooperate with a lug 114 extending inside the middle part 110. More particularly, the lug 114 is arranged on the bore 113 and has a shape complementary to that of the notch 133 , to within mechanical play, so as to be able to engage inside the notch 133 when the tubular wall 132 of the bottom 130 is introduced into the bore 113.

Il y a lieu de noter que dans d'autres exemples de réalisation de l'invention non représentés sur les figures, l'encoche 133 peut être agencée dans la carrure 110 et l'ergot 114 peut être agencé sur le fond 130, de façon analogue à l'exemple de réalisation préféré représenté sur les figures.It should be noted that in other exemplary embodiments of the invention not shown in the figures, the notch 133 can be arranged in the caseband 110 and the lug 114 can be arranged on the back 130, so analogous to the preferred embodiment shown in the figures.

La bague 140 comporte une portion radiale présentant une surface radiale interne 144 destinée à être agencée en vis-à-vis d'une portée annulaire 134 du fond 130, lorsque la bague 140 est vissée au taraudage 111 de la carrure 110. La portion radiale est reliée à la portion annulaire, comme le montre la figure 1.The ring 140 includes a radial portion having an inner radial surface 144 intended to be arranged facing an annular bearing surface 134 of the back 130, when the ring 140 is screwed to the internal thread 111 of the caseband 110. The radial portion is connected to the annular portion, as shown in the figure 1 .

Avantageusement, la bague 140 de fixation peut éventuellement prendre appui contre la portée annulaire 134 périphérique du fond 130 en plus de prendre appui contre la lèvre périphérique 131.Advantageously, the fixing ring 140 can possibly bear against the peripheral annular surface 134 of the bottom 130 in addition to bearing against the peripheral lip 131.

Cette portée annulaire 134 est reliée à la lèvre périphérique 131 par une surface cylindrique supérieure 135 destinée à être agencée en regard de la surface cylindrique supérieure 143 de la portion annulaire de la bague 140, lorsque le fond 130 est fixé à la carrure 110.This annular surface 134 is connected to the peripheral lip 131 by an upper cylindrical surface 135 intended to be arranged facing the upper cylindrical surface 143 of the annular portion of the ring 140, when the back 130 is fixed to the caseband 110.

Par ailleurs, un joint 150 est agencé entre la carrure 110 et le fond 130, et est interposé entre un épaulement formé par la jonction entre la paroi tubulaire 132 et la lèvre périphérique 131, et un renfoncement annulaire de la carrure 110 formé à la jonction entre la portée annulaire 112 et l'alésage 113.Furthermore, a seal 150 is arranged between the caseband 110 and the back 130, and is interposed between a shoulder formed by the junction between the tubular wall 132 and the peripheral lip 131, and an annular recess of the caseband 110 formed at the junction between the annular surface 112 and the bore 113.

La portion radiale de la bague 140 comporte une surface cylindrique inférieure 145 en regard de laquelle est agencée une surface cylindrique inférieure 136 du fond 130 de forme complémentaire.The radial portion of the ring 140 comprises a lower cylindrical surface 145 facing which is arranged a lower cylindrical surface 136 of the bottom 130 of complementary shape.

Lors de la fixation du fond 130 sur la carrure 110, le fond 130 est d'abord engagé dans la seconde ouverture de la carrure 110 de sorte que l'ergot 114 coopère avec l'encoche 133, la paroi tubulaire 132 du fond 130 étant engagé dans l'alésage 113 de la carrure 110 jusqu'à ce que la lèvre périphérie 131 soit agencé en appui contre la portée annulaire 112.When the back 130 is fixed on the middle 110, the back 130 is first engaged in the second opening of the middle 110 so that the lug 114 cooperates with the notch 133, the tubular wall 132 of the back 130 being engaged in the bore 113 of the middle part 110 until the peripheral lip 131 is arranged in abutment against the annular bearing surface 112.

Le fond 130 et la carrure 110 forment alors un logement défini entre la surface cylindrique supérieure 135, la lèvre périphérique 131 et le taraudage 111 de la carrure 110, dans lequel la bague 140 est destinée à être engagée.The bottom 130 and the middle part 110 then form a housing defined between the upper cylindrical surface 135, the peripheral lip 131 and the internal thread 111 of the middle part 110, in which the ring 140 is intended to be engaged.

La bague 140 est alors amenée à coopérer avec le taraudage 111 de la carrure 110, jusqu'à serrer la lèvre périphérique 131 contre la portée annulaire 112 et atteindre un couple de serrage prédéterminé suffisant pour fixer rigidement, c'est-à-dire selon une liaison mécanique du type encastrement, le fond 130, la bague 140 et la carrure 110 ensemble.The ring 140 is then brought to cooperate with the internal thread 111 of the middle part 110, until the peripheral lip 131 is tightened against the annular surface 112 and reaches a predetermined tightening torque sufficient to fix rigidly, that is to say according to a mechanical connection of the recessed type, the back 130, the ring 140 and the caseband 110 together.

Avantageusement, la bague 140 peut comporter un congé ou un chanfrein à la jonction entre la surface cylindrique supérieure 143 de la portion annulaire et la surface d'extrémité 142, et le fond 130 peut également comporter un congé ou un chanfrein à la jonction entre la portée annulaire 134 et la surface cylindrique supérieure 135, de sorte à faciliter l'introduction de la bague 140 au sein du logement formé entre le fond 130 et la carrure 110.Advantageously, the ring 140 can comprise a fillet or a chamfer at the junction between the upper cylindrical surface 143 of the annular portion and the end surface 142, and the bottom 130 can also comprise a fillet or a chamfer at the junction between the annular bearing surface 134 and the upper cylindrical surface 135, so as to facilitate the introduction of the ring 140 within the housing formed between the bottom 130 and the middle part 110.

En outre, un chanfrein ou un congé peut être réalisé à la jonction entre la surface cylindrique de la portion radiale de la bague 140 et la surface radiale interne 144 de ladite portion radiale.In addition, a chamfer or a fillet can be made at the junction between the cylindrical surface of the radial portion of the ring 140 and the inner radial surface 144 of said radial portion.

Préférentiellement, la bague 140 comporte sur une face externe opposée au volume interne de la boite 100 de montre, des entailles radiales 146 destinées à coopérer avec un outil manipulé par un utilisateur. Grâce aux entailles radiales 146, la bague 140 peut être vissée ou dévissée par manipulation de l'outil, de sorte à fixer la bague 140 et le fond 130 à la carrure 110, ou au contraire, de sorte à les désolidariser de ladite carrure 110.Preferably, the ring 140 comprises on an outer face opposite to the internal volume of the watch case 100, radial notches 146 intended to cooperate with a tool manipulated by a user. Thanks to the radial notches 146, the ring 140 can be screwed or unscrewed by manipulation of the tool, so as to fix the ring 140 and the bottom 130 to the caseband 110, or on the contrary, so as to separate them from said caseband 110 .

Claims (12)

Boite (100) de montre comprenant une carrure (110) comportant une première ouverture recevant une glace (120), opposée à une seconde ouverture recevant un fond (130), la boite (100) de montre étant caractérisée en ce que le fond (130) est maintenu en appui contre une portée annulaire (112) de la carrure (110) par une bague (140) filetée coopérant par vissage avec ladite carrure (110), le fond (130) comprenant un unique premier moyen d'indexation (133) configuré pour coopérer avec un unique second moyen d'indexation (114) dont est dotée la carrure (110) de sorte à immobiliser ledit fond (130) en rotation selon une unique position angulaire par rapport à la carrure (110).Watch case (100) comprising a middle part (110) comprising a first opening receiving a crystal (120), opposite a second opening receiving a back (130), the watch case (100) being characterized in that the back ( 130) is held against an annular bearing surface (112) of the caseband (110) by a threaded ring (140) cooperating by screwing with said caseband (110), the bottom (130) comprising a single first indexing means ( 133) configured to cooperate with a single second indexing means (114) with which the caseband (110) is provided so as to immobilize said back cover (130) in rotation in a single angular position with respect to the caseband (110). Boite (100) de montre selon la revendication 1, dans laquelle le premier et le second moyens d'indexation sont formés par un couple ergot/encoche (114,133).Watch case (100) according to claim 1, in which the first and second indexing means are formed by a lug/notch pair (114,133). Boite (100) de montre selon l'une des revendications 1 ou 2, dans laquelle la carrure (110) comporte un taraudage (111) avec lequel coopère par vissage un filetage extérieur (141) dont est dotée la bague (140).Watch case (100) according to one of Claims 1 or 2, in which the middle part (110) comprises an internal thread (111) with which an external thread (141) with which the ring (140 is provided) cooperates by screwing. Boite (100) de montre selon l'une des revendications 1 à 3, dans laquelle le fond (130) présente une lèvre périphérique (131) s'étendant radialement autour de la périphérie dudit fond (130), et étant agencée pour reposer en appui contre la portée annulaire (112) de la carrure (110).Watch case (100) according to one of Claims 1 to 3, in which the bottom (130) has a peripheral lip (131) extending radially around the periphery of the said bottom (130), and being arranged to rest bearing against the annular surface (112) of the caseband (110). Boite (100) de montre selon les revendications 3 et 4, dans laquelle la bague (140) comporte une portion annulaire comprenant le filetage extérieur (141) et une surface d'extrémité (142) par laquelle elle prend appui contre la lèvre périphérique (131) du fond (130).Watch case (100) according to Claims 3 and 4, in which the ring (140) comprises an annular portion comprising the external thread (141) and an end surface (142) by which it bears against the peripheral lip ( 131) from the bottom (130). Boite (100) de montre selon la revendication 4 ou 5, dans laquelle la lèvre périphérique (131) s'étend depuis une paroi tubulaire (132) matérialisant une extrémité supérieure du fond (130), la paroi tubulaire (132) étant engagée dans un alésage (113) de la carrure (110).Watch case (100) according to Claim 4 or 5, in which the peripheral lip (131) extends from a tubular wall (132) materializing an upper end of the bottom (130), the tubular wall (132) being engaged in a bore (113) of the middle part (110). Boite (100) de montre selon les revendications 2 et 6, dans laquelle l'encoche (133) est agencée sur la paroi tubulaire (132) et s'étend axialement depuis une extrémité libre de ladite paroi tubulaire (132), ladite encoche (133) étant configurée pour coopérer avec l'ergot (114), ledit ergot (114) étant agencé sur l'alésage (113).Watch case (100) according to Claims 2 and 6, in which the notch (133) is arranged on the tubular wall (132) and extends axially from a free end of the said tubular wall (132), the said notch ( 133) being configured to cooperate with the pin (114), said pin (114) being arranged on the bore (113). Boite (100) de montre selon la revendication 6, dans laquelle un joint (150) est agencé entre la carrure (110) et le fond (130), et est interposé entre un épaulement formé par la jonction entre la paroi tubulaire (132) et la lèvre périphérique (131), et un renfoncement annulaire de la carrure (110) formé à la jonction entre la portée annulaire (112) et l'alésage (113).Watch case (100) according to Claim 6, in which a seal (150) is arranged between the middle part (110) and the back (130), and is interposed between a shoulder formed by the junction between the tubular wall (132) and the peripheral lip (131), and an annular recess in the caseband (110) formed at the junction between the annular surface (112) and the bore (113). Boite (100) de montre selon la revendication 5, dans laquelle la bague (140) comporte une portion radiale reliée à la portion annulaire et présentant une surface radiale interne (144) agencée en vis-à-vis d'une portée annulaire (134) du fond (130).Watch case (100) according to Claim 5, in which the ring (140) comprises a radial portion connected to the annular portion and having an internal radial surface (144) arranged opposite an annular bearing surface (134 ) of the bottom (130). Boite (100) de montre selon la revendication 9, dans laquelle la portion radiale de la bague (140) comporte une surface cylindrique inférieure (145) en regard de laquelle est agencée une surface cylindrique inférieure (136) du fond (130) de forme complémentaire.Watch case (100) according to Claim 9, in which the radial portion of the ring (140) comprises a lower cylindrical surface (145) opposite which is arranged a lower cylindrical surface (136) of the bottom (130) of additoinal. Montre (10) caractérisée en ce qu'elle comprend un mouvement horloger logé dans un volume interne d'une boite (100) de montre selon l'une des revendications 1 à 10, ledit volume interne étant défini entre la carrure (110), la glace (120) et le fond (130).Watch (10) characterized in that it comprises a watch movement housed in an internal volume of a watch case (100) according to one of Claims 1 to 10, said internal volume being defined between the middle part (110), the glass (120) and the bottom (130). Procédé de montage d'une boite (100) de montre selon l'une des revendications 1 à 10, dans laquelle le fond (130) est engagé dans la seconde ouverture de la carrure (110) de sorte que le premier moyen d'indexation (133) coopère avec le second moyen d'indexation (114), puis la bague (140) est vissée à la carrure (110) de sorte à immobiliser ledit fond (130) en appui contre ladite carrure (110).Method of assembling a watch case (100) according to one of claims 1 to 10, in which the bottom (130) is engaged in the second opening of the middle part (110) so that the first indexing means (133) cooperates with the second indexing means (114), then the ring (140) is screwed to the caseband (110) so as to immobilize said bottom (130) resting against said caseband (110).
EP21193001.1A 2021-08-25 2021-08-25 Watch case comprising a bottom oriented in a predetermined angular position, watch comprising said case and method for assembling such a case Pending EP4141582A1 (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
EP21193001.1A EP4141582A1 (en) 2021-08-25 2021-08-25 Watch case comprising a bottom oriented in a predetermined angular position, watch comprising said case and method for assembling such a case
US17/659,362 US20230068766A1 (en) 2021-08-25 2022-04-15 Watch case comprising a back oriented in a predefined angular position, watch comprising said case and method for assembling such a case
KR1020220058552A KR20230030510A (en) 2021-08-25 2022-05-12 Watch case comprising a back oriented in a predefined angular position, watch comprising said case and method for assembling such a case
JP2022079969A JP7430215B2 (en) 2021-08-25 2022-05-16 Watch case with a back oriented in a predetermined angular position, a watch including said case, and a method for assembling such a case
CN202211025430.XA CN115729087A (en) 2021-08-25 2022-08-25 Watch case comprising a bottom cover oriented in a predefined angular position, watch comprising said case and method for assembling such a case

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP21193001.1A EP4141582A1 (en) 2021-08-25 2021-08-25 Watch case comprising a bottom oriented in a predetermined angular position, watch comprising said case and method for assembling such a case

Publications (1)

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EP4141582A1 true EP4141582A1 (en) 2023-03-01

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EP21193001.1A Pending EP4141582A1 (en) 2021-08-25 2021-08-25 Watch case comprising a bottom oriented in a predetermined angular position, watch comprising said case and method for assembling such a case

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US (1) US20230068766A1 (en)
EP (1) EP4141582A1 (en)
JP (1) JP7430215B2 (en)
KR (1) KR20230030510A (en)
CN (1) CN115729087A (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2182416A1 (en) * 2008-10-31 2010-05-05 Pibor ISO S.A. Device for positioning and mounting a case-back and process for positioning and mounting this case-back on a watch-case.

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010127683A (en) * 2008-11-26 2010-06-10 Seiko Instruments Inc Portable watch

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2182416A1 (en) * 2008-10-31 2010-05-05 Pibor ISO S.A. Device for positioning and mounting a case-back and process for positioning and mounting this case-back on a watch-case.

Also Published As

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US20230068766A1 (en) 2023-03-02
KR20230030510A (en) 2023-03-06
JP7430215B2 (en) 2024-02-09
JP2023033098A (en) 2023-03-09
CN115729087A (en) 2023-03-03

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