EP3821300A1 - Watch having a rotating bezel with bezel locking system provided with an integrated helium valve - Google Patents

Watch having a rotating bezel with bezel locking system provided with an integrated helium valve

Info

Publication number
EP3821300A1
EP3821300A1 EP19732353.8A EP19732353A EP3821300A1 EP 3821300 A1 EP3821300 A1 EP 3821300A1 EP 19732353 A EP19732353 A EP 19732353A EP 3821300 A1 EP3821300 A1 EP 3821300A1
Authority
EP
European Patent Office
Prior art keywords
pin
hole
crown
bezel
tube
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP19732353.8A
Other languages
German (de)
French (fr)
Other versions
EP3821300B1 (en
Inventor
Nicolas Ehrsam
Laurie Saunders
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.)
Tissot SA
Original Assignee
Tissot 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 Tissot SA filed Critical Tissot SA
Publication of EP3821300A1 publication Critical patent/EP3821300A1/en
Application granted granted Critical
Publication of EP3821300B1 publication Critical patent/EP3821300B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • G—PHYSICS
    • G04—HOROLOGY
    • G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
    • G04B19/00—Indicating the time by visual means
    • G04B19/28—Adjustable guide marks or pointers for indicating determined points of time
    • G04B19/283—Adjustable guide marks or pointers for indicating determined points of time on rotatable rings, i.e. bezel
    • G04B19/286—Adjustable guide marks or pointers for indicating determined points of time on rotatable rings, i.e. bezel with locking means to prevent undesired rotations in both directions

Definitions

  • the present invention relates to watches provided with a rotating bezel.
  • the rotating bezel of a watch makes it possible to mark a point in time which serves as a point of reference for the duration of a sporting or other activity.
  • a point in time which serves as a point of reference for the duration of a sporting or other activity.
  • Various locking systems have been developed, which are generally complex and expensive to manufacture, or which do not guarantee secure locking of the telescope.
  • the present invention aims to provide a locking system for the bezel of a watch, which is simple and which guarantees locking in all circumstances.
  • a watch case provided with said system is described in the appended claims.
  • the invention relates to a watch whose case includes a middle part and a rotating bezel, provided with a bezel locking system.
  • the system comprises a rotary crown which is integral with an axis, the latter being arranged in a radial hole formed in the middle part.
  • the user can screw or unscrew the axis relative to the hole.
  • the axis comprises a frustoconical section which interacts with a pin mounted perpendicular to the axis, and returned to the axis by a spring.
  • the tapered section By screwing the axis into the hole, the tapered section will push the pin into a receiving space provided on the lower surface of the telescope, which will lock the telescope. Unscrewing the axis automatically releases the pin from the receiving space thanks to the return force exerted by the spring.
  • Figure 1 shows a 3D image of the external structure of a watch case according to an embodiment of the invention.
  • FIG. 2 represents a plan view of the structure of FIG. 1.
  • Figure 3 shows a sectional view of the locking system according to the invention, in the unlocked position.
  • Figure 4 shows a sectional view of the locking system according to the invention, in the locked position.
  • FIG. 5 represents a 3D view of the locking system cooperating with the watch bezel.
  • the ‘lower‘ and ‘upper’ indications describe the position of elements of a watch case when it is held horizontally, with the means for indicating the time facing upwards.
  • FIG. 1 represents a middle part 2 of a watch case according to an embodiment of the invention.
  • a rotating bezel 3 is mounted on the upper surface of the middle part 2.
  • the internal components such as a needle dial, a digital index as well as the internal mechanism are not shown. These components do not form the subject of the invention and they can be produced by known methods and technologies.
  • the middle part 2 is provided with horns 4 for fixing the strands of a bracelet. In the plan view in FIG. 2, we see the classic crown 5 for adjusting the hands of the watch.
  • the middle part 2 is provided with an additional crown 6 which is part of the locking system of the rotating bezel 3 according to the invention.
  • the locking ring 6 is shown in section, in the unlocked position of the system.
  • the bezel 3 is rotatably retained on the middle part 2 by a polygonal spring 30 housed in a pair of lateral grooves provided respectively in the bezel and in the middle part.
  • a first element of the locking system is formed by a radial hole 7 in the middle part 2, in which a tube 8 is fixedly mounted.
  • the tube 8 can for example be driven out, glued or screwed into the middle part 2.
  • a part of the tube 8 protrudes from the external lateral wall of the middle part 2.
  • the tube 8 is provided with an internal thread, the thread extending at the less over the length of the part which protrudes from the middle part 2 and is intended to cooperate with a corresponding thread of the locking crown 6.
  • the locking ring 6 is integral with an axis 9, the different portions of which are visible in FIGS. 3 and 4, as well as in FIG. 5 which represents a 3D view of the axis.
  • the axis 9 comprises a threaded section 10, the outside threading of said section corresponding to the internal thread provided in the tube 8.
  • the threaded section 10 is located inside the crown 6, on the internal surface of a circular groove 19 which extends in the body of the crown 6.
  • the threaded section 10 is followed by a first cylindrical section 11 (non-threaded), a frustoconical section 12 and a second cylindrical section 13 which is terminated by a flange 14.
  • the frustoconical section 12 decreases the diameter of the axis continuously between the diameters of the first and second cylindrical section 11 and 13.
  • the diameter of the flange 14 corresponds to the internal diameter of the tube 8, so that the flange 14 can slide relative to the tube 8.
  • the underside of the telescope 3 comprises a plurality of axial holes 15 distributed regularly over the periphery of the telescope.
  • the middle part 2 is provided with a hole 20 which is oriented perpendicular to the axis 9, and in which a pin 21 is mounted, so that said pin 21 slides by relative to the hole 20 and interacts with the axis 9.
  • the central axes of the pin 21 and the locking axis 9 are perpendicular to each other and intersect at a point.
  • the pin 21 is biased towards the axis 9 by a spring 22, so as to maintain physical contact between the lower end of the pin 21 and the surface of the axis 9.
  • the pin 21 is in contact with the minimum diameter section 13 and with the flange 14. In this position, the upper end of the pin 21 is not housed in any of the axial holes 15 of the telescope 3.
  • the bezel 3 is then free and can be rotated by the user.
  • the user can then insert the axis 9 into the tube 8 by screwing the threaded section 10 into the tube.
  • the movement of the axis 9 will gradually push the pin 21 into one of the axial holes 15 of the telescope, by the interaction between the pin 21 and the slope of the frustoconical section 12, and this against the prestressing force exerted by the spring 22.
  • the lower end of the pin 21 is in contact with the first cylindrical section 11 and the upper end of the pin 21 is housed in the hole 15, which provides secure locking of the telescope which cannot be accidentally released.
  • the part of the tube which protrudes from the wall of the middle part has entered the circular groove 19.
  • the user unscrews the crown 6 towards the configuration of FIG. 3.
  • the spring 22 lowers the pin 21 until the pin is completely out of the hole 15, resulting in the release of the telescope.
  • the pin 21 is slidably arranged in a block 23 mounted in the hole 20 and comprising seals 24.
  • the tube 8 may include a portion 25 having a diameter greater than that of the rest of the tube, said portion 25 being mounted to abut against the outer lateral wall of the middle part 2.
  • the crown 6 of its side is provided with a seal 26 between the body of the crown and the outer surface of the tube 8. The seal 26 will be pushed against the portion of larger diameter 25 when the crown 6 reaches its locking position. The seal 26 will not only have a sealing effect but it will also ensure a fixed closure thanks to its compression between the crown 6 and the portion with a larger diameter 25.
  • a helium valve 29 is integrated into the crown and more precisely inside the axis 9.
  • the valve is arranged coaxially with the axis 9. It has a body 30 prestressed by a spring 31.
  • the body 30 comprises at its inner end a surface 32 which is subjected to the pressure prevailing inside the middle part 2. From a predefined threshold, the pressure will overcome the force of prestress exerted by the spring 31, resulting in the depressurization of the interior of the middle part 2.
  • One or more seals 34 and 35 are mounted between the body of the valve 30 and the internal surface of the axis 9.
  • valves in diving watches are known per se and the invention is not limited to the embodiment shown in the figures, but it also includes embodiments which do not include a valve inside axis 9, or which include a valve mounted elsewhere on the middle part 2.
  • the function of the valve is to release the gases infiltrated into the watch during a saturation dive. When going up, the pressure created by these gases, generally Helium, can damage the watch.
  • the groove 19 between the body of the crown 6 and the axis 9 in cooperation with the part of the tube 8 which protrudes from the middle part 2 results in a robust structure having good sealing properties.
  • other forms of crowns integral with an axis are conceivable.
  • said first and second cylindrical sections are not essential: the extreme positions of the pin 21 relative to the section frustoconical 12 can be on said frustoconical section itself.
  • the axis 9 can be fitted directly into a threaded hole in the middle part 2 rather than in a tube 8 mounted in the middle part.
  • the holes 15 are only examples of receiving spaces capable of receiving the end of the pin 21.
  • the bezel 3 could include an axial toothing on its lower surface, with the recesses between two teeth forming a receiving space for the pin 21.
  • the end of the pin 21 is preferably machined so that the shape of said end corresponds to the shape of the recesses.

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

Abstract

The invention relates to a watch, the watch case of which comprises a middle (2) and a rotating bezel (3), provided with a bezel locking system. The system comprises a rotary crown (6) which is rigidly attached to a shaft (9), the latter being arranged in a radial hole (7) in the middle. By rotating the crown (6), the user can screw or unscrew the shaft with respect to the hole. The shaft comprises a frustoconical section (12) which interacts with a pin (21) mounted perpendicularly to the shaft, and biased towards the shaft by a spring (22). By screwing the shaft (9) into the hole (7), the frustoconical section pushes the pin into a receiving space (15) provided on the inner surface of the bezel (3), which locks the bezel. The unscrewing of the shaft (9) automatically disengages the pin (21) outside of the receiving space, by virtue of a return force exerted by the spring (22). According to a preferred embodiment, the crown incorporates a helium valve mechanism.

Description

MONTRE POURVUE D’UNE LUNETTE TOURNANTE AVEC SYSTEME DE VERROUILLAGE DE LA LUNETTE MUNI D’UNE  WATCH PROVIDED WITH A ROTATING BEZEL WITH BEZEL LOCKING SYSTEM PROVIDED WITH A
SOUPAPE A HELIUM INTEGREE  INTEGRATED HELIUM VALVE
Domaine technique Technical area
La présente invention se rapporte aux montres pourvues d’une lunette tournante.  The present invention relates to watches provided with a rotating bezel.
État de la technique State of the art
La lunette tournante d’une montre, principalement utilisée dans les montres de sport, permet de marquer un point dans le temps qui sert de point de référence pour la durée d’une activité sportive ou autre. Pour certains types de montre, tels que les montres de plongée, il est important de pouvoir verrouiller la lunette afin d’éviter des actionnements intempestifs de celle-ci et une perte de repère temporel en lien avec la durée de l’activité. Différents systèmes de verrouillage ont été développés, qui sont généralement complexes et chers à fabriquer, ou qui ne garantissent pas un verrouillage sûr de la lunette.  The rotating bezel of a watch, mainly used in sports watches, makes it possible to mark a point in time which serves as a point of reference for the duration of a sporting or other activity. For certain types of watch, such as diving watches, it is important to be able to lock the bezel in order to avoid untimely actuation of the latter and a loss of time reference in connection with the duration of the activity. Various locking systems have been developed, which are generally complex and expensive to manufacture, or which do not guarantee secure locking of the telescope.
Résumé de l’invention Summary of the invention
La présente invention vise à fournir un système de verrouillage de la lunette d’une montre, qui est simple et qui garantit le verrouillage en toutes circonstances. Une boîte de montre munie dudit système est décrite dans les revendications annexées.  The present invention aims to provide a locking system for the bezel of a watch, which is simple and which guarantees locking in all circumstances. A watch case provided with said system is described in the appended claims.
L’invention concerne une montre dont la boîte comprend une carrure et une lunette tournante, pourvue d’un système de verrouillage de la lunette. Le système comprend une couronne rotative qui est solidaire d’un axe, ce dernier étant aménagé dans un trou radial ménagé dans la carrure. En tournant la couronne, l’utilisateur peut visser ou dévisser l’axe par rapport au trou. L’axe comprend un tronçon tronconique qui interagit avec une goupille montée perpendiculairement à l’axe, et rappelée vers l’axe par un ressort. En vissant l’axe dans le trou, le tronçon tronconique va pousser la goupille dans un espace récepteur pourvu sur la surface inférieure de la lunette, ce qui va verrouiller la lunette. Le dévissage de l’axe dégage automatiquement la goupille hors de l’espace récepteur grâce à la force de rappel exercée par le ressort. The invention relates to a watch whose case includes a middle part and a rotating bezel, provided with a bezel locking system. The system comprises a rotary crown which is integral with an axis, the latter being arranged in a radial hole formed in the middle part. In turning the crown, the user can screw or unscrew the axis relative to the hole. The axis comprises a frustoconical section which interacts with a pin mounted perpendicular to the axis, and returned to the axis by a spring. By screwing the axis into the hole, the tapered section will push the pin into a receiving space provided on the lower surface of the telescope, which will lock the telescope. Unscrewing the axis automatically releases the pin from the receiving space thanks to the return force exerted by the spring.
D'autres caractéristiques et avantages de la présente invention apparaîtront dans la description suivante de modes de réalisation préférés, présentés à titre d'exemple non limitatif en référence aux dessins annexés.  Other characteristics and advantages of the present invention will appear in the following description of preferred embodiments, presented by way of nonlimiting example with reference to the accompanying drawings.
Brève description des figures Brief description of the figures
La figure 1 représente une image en 3D de la structure externe d’une boîte de montre selon une forme d’exécution de l’invention.  Figure 1 shows a 3D image of the external structure of a watch case according to an embodiment of the invention.
La figure 2 représente une vue en plan de la structure de la figure 1. FIG. 2 represents a plan view of the structure of FIG. 1.
La figure 3 représente une vue en coupe du système de verrouillage selon l’invention, en position déverrouillée. Figure 3 shows a sectional view of the locking system according to the invention, in the unlocked position.
La figure 4 représente une vue en coupe du système de verrouillage selon l’invention, en position verrouillée.  Figure 4 shows a sectional view of the locking system according to the invention, in the locked position.
La figure 5 représente une vue en 3D du système de verrouillage coopérant avec la lunette de montre.  FIG. 5 represents a 3D view of the locking system cooperating with the watch bezel.
Description détaillée de formes d’exécution de l’invention Detailed description of embodiments of the invention
Dans le texte suivant, les indications‘inférieur’ et‘supérieur’ décrivent la position d’éléments d’une boîte de montre quand celle-ci est tenue horizontalement, avec les moyens pour indiquer l’heure orientés vers le haut.  In the following text, the ‘lower‘ and ‘upper’ indications describe the position of elements of a watch case when it is held horizontally, with the means for indicating the time facing upwards.
La figure 1 représente une carrure 2 d’une boîte de montre selon une forme d’exécution de l’invention. Une lunette tournante 3 est montée sur la surface supérieure de la carrure 2. Les composants internes tels qu’un cadran à aiguilles, un index numérique ainsi que le mécanisme interne ne sont pas représentés. Ces composants ne forment pas le sujet de l’invention et ils peuvent être réalisés par des méthodes et selon des technologies connues. La carrure 2 est pourvue de cornes 4 pour la fixation des brins d’un bracelet. Sur la vue en plan à la figure 2, on voit la couronne classique 5 d’ajustement des aiguilles de la montre. La carrure 2 est munie d’une couronne additionnelle 6 qui fait partie du système de verrouillage de la lunette tournante 3 selon l’invention. FIG. 1 represents a middle part 2 of a watch case according to an embodiment of the invention. A rotating bezel 3 is mounted on the upper surface of the middle part 2. The internal components such as a needle dial, a digital index as well as the internal mechanism are not shown. These components do not form the subject of the invention and they can be produced by known methods and technologies. The middle part 2 is provided with horns 4 for fixing the strands of a bracelet. In the plan view in FIG. 2, we see the classic crown 5 for adjusting the hands of the watch. The middle part 2 is provided with an additional crown 6 which is part of the locking system of the rotating bezel 3 according to the invention.
A la figure 3, la couronne de verrouillage 6 est montrée en section, dans la position déverrouillée du système. De manière connue, la lunette 3 est retenue de manière rotative sur la carrure 2 par un ressort polygonal 30 logé dans une paire de gorges latérales pourvues respectivement dans la lunette et dans la carrure. Un premier élément du système de verrouillage est formé par un trou radial 7 dans la carrure 2, dans lequel un tube 8 est monté de manière fixe. Le tube 8 peut par exemple être chassé, collé ou vissé dans la carrure 2. Une partie du tube 8 dépasse de la paroi latérale extérieure de la carrure 2. Le tube 8 est pourvu d’un filetage intérieur, le filetage s’étendant au moins sur la longueur de la partie qui dépasse de la carrure 2 et est destiné à coopérer avec un filetage correspondant de la couronne de verrouillage 6.  In Figure 3, the locking ring 6 is shown in section, in the unlocked position of the system. In known manner, the bezel 3 is rotatably retained on the middle part 2 by a polygonal spring 30 housed in a pair of lateral grooves provided respectively in the bezel and in the middle part. A first element of the locking system is formed by a radial hole 7 in the middle part 2, in which a tube 8 is fixedly mounted. The tube 8 can for example be driven out, glued or screwed into the middle part 2. A part of the tube 8 protrudes from the external lateral wall of the middle part 2. The tube 8 is provided with an internal thread, the thread extending at the less over the length of the part which protrudes from the middle part 2 and is intended to cooperate with a corresponding thread of the locking crown 6.
La couronne de verrouillage 6 est solidaire d’un axe 9 dont les différentes portions sont visibles aux figures 3 et 4, ainsi qu’à la figure 5 qui représente une vue en 3D de l’axe. Venant de l’extérieur de la carrure 2 vers l’intérieur, l’axe 9 comprend un tronçon fileté 10, le filetage extérieur dudit tronçon correspondant au filetage intérieur pourvu dans le tube 8. Le tronçon fileté 10 se trouve à l’intérieur de la couronne 6, sur la surface interne d’une gorge circulaire 19 qui s’étend dans le corps de la couronne 6. Le tronçon à filetage 10 est suivi par un premier tronçon cylindrique 11 (non-fileté), un tronçon tronconique 12 et un deuxième tronçon cylindrique 13 qui est terminée par une collerette 14. Le tronçon tronconique 12 fait diminuer le diamètre de l’axe de manière continue entre les diamètres du premier et du deuxième tronçon cylindrique 11 et 13. Le diamètre de la collerette 14 correspond au diamètre interne du tube 8, de manière à ce que la collerette 14 puisse coulisser par rapport au tube 8. The locking ring 6 is integral with an axis 9, the different portions of which are visible in FIGS. 3 and 4, as well as in FIG. 5 which represents a 3D view of the axis. Coming from the outside of the middle part 2 towards the inside, the axis 9 comprises a threaded section 10, the outside threading of said section corresponding to the internal thread provided in the tube 8. The threaded section 10 is located inside the crown 6, on the internal surface of a circular groove 19 which extends in the body of the crown 6. The threaded section 10 is followed by a first cylindrical section 11 (non-threaded), a frustoconical section 12 and a second cylindrical section 13 which is terminated by a flange 14. The frustoconical section 12 decreases the diameter of the axis continuously between the diameters of the first and second cylindrical section 11 and 13. The diameter of the flange 14 corresponds to the internal diameter of the tube 8, so that the flange 14 can slide relative to the tube 8.
A la figure 5, on voit que la face inférieure de la lunette 3 comprend une pluralité de trous axiaux 15 distribués de manière régulière sur le pourtour de la lunette.  In FIG. 5, it can be seen that the underside of the telescope 3 comprises a plurality of axial holes 15 distributed regularly over the periphery of the telescope.
De plus, comme montré aux figures 3 et 4, la carrure 2 est pourvue d’un trou 20 qui est orienté perpendiculairement à l’axe 9, et dans lequel une goupille 21 est montée, de manière à ce que ladite goupille 21 coulisse par rapport au trou 20 et interagisse avec l’axe 9. De préférence, les axes centraux de la goupille 21 et de l’axe de verrouillage 9 sont perpendiculaires l’un par rapport à l’autre et se croisent en un point. La goupille 21 est rappelée en direction de l’axe 9 par un ressort 22, de manière à maintenir un contact physique entre l’extrémité inférieure de la goupille 21 et la surface de l’axe 9. Quand la couronne 6 est dévissée complètement (figure 3), la goupille 21 est en contact avec le tronçon à diamètre minimal 13 et avec la collerette 14. Dans cette position, l’extrémité supérieure de la goupille 21 n’est logée dans aucun des trous axiaux 15 de la lunette 3. La lunette 3 est alors libre et peut être mise en rotation par l’utilisateur.  In addition, as shown in Figures 3 and 4, the middle part 2 is provided with a hole 20 which is oriented perpendicular to the axis 9, and in which a pin 21 is mounted, so that said pin 21 slides by relative to the hole 20 and interacts with the axis 9. Preferably, the central axes of the pin 21 and the locking axis 9 are perpendicular to each other and intersect at a point. The pin 21 is biased towards the axis 9 by a spring 22, so as to maintain physical contact between the lower end of the pin 21 and the surface of the axis 9. When the crown 6 is completely unscrewed ( FIG. 3), the pin 21 is in contact with the minimum diameter section 13 and with the flange 14. In this position, the upper end of the pin 21 is not housed in any of the axial holes 15 of the telescope 3. The bezel 3 is then free and can be rotated by the user.
En tournant la couronne 6, l’utilisateur peut ensuite faire entrer l’axe 9 dans le tube 8 par vissage du tronçon à filetage 10 dans le tube. Le mouvement de l’axe 9 va progressivement pousser la goupille 21 dans un des trous axiaux 15 de la lunette, par l’interaction entre la goupille 21 et la pente du tronçon tronconique 12, et ce à l’encontre de la force de précontrainte exercée par le ressort 22. Dans la position de verrouillage montrée à la figure 4, l’extrémité inférieure de la goupille 21 est en contact avec le premier tronçon cylindrique 11 et l’extrémité supérieure de la goupille 21 est logée dans le trou 15, ce qui permet d’obtenir un verrouillage sûr de la lunette qui ne peut être dégagée accidentellement. Dans la position de verrouillage, la partie du tube qui dépasse de la paroi de la carrure est entrée dans la gorge 19 circulaire. Pour déverrouiller le système, l’utilisateur dévisse la couronne 6 vers la configuration de la figure 3. Le ressort 22 fait descendre la goupille 21 jusqu’à ce la goupille soit complètement sortie du trou 15, résultant en la libération de la lunette. De préférence, la goupille 21 est aménagée de manière coulissante dans un bloc 23 monté dans le trou 20 et comprenant des joints d’étanchéité 24. By turning the crown 6, the user can then insert the axis 9 into the tube 8 by screwing the threaded section 10 into the tube. The movement of the axis 9 will gradually push the pin 21 into one of the axial holes 15 of the telescope, by the interaction between the pin 21 and the slope of the frustoconical section 12, and this against the prestressing force exerted by the spring 22. In the locking position shown in FIG. 4, the lower end of the pin 21 is in contact with the first cylindrical section 11 and the upper end of the pin 21 is housed in the hole 15, which provides secure locking of the telescope which cannot be accidentally released. In the locked position, the part of the tube which protrudes from the wall of the middle part has entered the circular groove 19. To unlock the system, the user unscrews the crown 6 towards the configuration of FIG. 3. The spring 22 lowers the pin 21 until the pin is completely out of the hole 15, resulting in the release of the telescope. Preferably, the pin 21 is slidably arranged in a block 23 mounted in the hole 20 and comprising seals 24.
La friction entre les filetages sur l’axe 9 et sur le tube 8 permet de garantir un verrouillage sûr du système que seul un dévissage délibéré de la couronne 6 par l’utilisateur permet de libérer. De plus, comme illustré dans les figures, le tube 8 peut comporter une portion 25 ayant un diamètre supérieur à celui du reste du tube, ladite portion 25 étant montée à butée contre la paroi latérale extérieure de la carrure 2. La couronne 6 de son côté est pourvu d’un joint d’étanchéité 26 entre le corps de la couronne et la surface extérieure du tube 8. Le joint 26 sera poussé contre la portion de diamètre supérieur 25 quand la couronne 6 arrive à sa position de verrouillage. Le joint 26 aura non seulement un effet d’étanchéité mais il va également assurer une fermeture fixe grâce à sa compression entre la couronne 6 et la portion à diamètre supérieur 25.  The friction between the threads on the axis 9 and on the tube 8 ensures a secure locking of the system that only a deliberate unscrewing of the crown 6 by the user can release. In addition, as illustrated in the figures, the tube 8 may include a portion 25 having a diameter greater than that of the rest of the tube, said portion 25 being mounted to abut against the outer lateral wall of the middle part 2. The crown 6 of its side is provided with a seal 26 between the body of the crown and the outer surface of the tube 8. The seal 26 will be pushed against the portion of larger diameter 25 when the crown 6 reaches its locking position. The seal 26 will not only have a sealing effect but it will also ensure a fixed closure thanks to its compression between the crown 6 and the portion with a larger diameter 25.
Selon la forme d’exécution représentée dans les figures, une soupape à hélium 29 est intégrée à la couronne et plus précisément à l’intérieur de l’axe 9. La soupape est disposée de manière coaxiale avec l’axe 9. Elle comporte un corps 30 précontraint par un ressort 31. Le corps 30 comprend à son extrémité intérieure une surface 32 qui est soumise à la pression régnant à l’intérieur de la carrure 2. A partir d’un seuil prédéfini, la pression va surmonter la force de précontrainte exercée par le ressort 31 , résultant en la dépressurisation de l’intérieur de la carrure 2. Un ou plusieurs joints d’étanchéité 34 et 35 sont montés entre le corps de la soupape 30 et la surface interne de l’axe 9. L’inclusion de soupapes dans les montres de plongée est connue en soi et l’invention n’est pas limitée à la forme d’exécution représentée dans les figures, mais elle inclut également les formes d’exécution qui ne comprennent pas de soupape à l’intérieur de l’axe 9, ou qui comprennent une soupape montée à un autre endroit sur la carrure 2. La fonction de la soupape est de libérer les gaz infiltrés dans la montre lors d’une plongée à saturation. En remontant, la pression créée par ces gaz, généralement l’Hélium, peut endommager la montre. According to the embodiment shown in the figures, a helium valve 29 is integrated into the crown and more precisely inside the axis 9. The valve is arranged coaxially with the axis 9. It has a body 30 prestressed by a spring 31. The body 30 comprises at its inner end a surface 32 which is subjected to the pressure prevailing inside the middle part 2. From a predefined threshold, the pressure will overcome the force of prestress exerted by the spring 31, resulting in the depressurization of the interior of the middle part 2. One or more seals 34 and 35 are mounted between the body of the valve 30 and the internal surface of the axis 9. L inclusion of valves in diving watches is known per se and the invention is not limited to the embodiment shown in the figures, but it also includes embodiments which do not include a valve inside axis 9, or which include a valve mounted elsewhere on the middle part 2. The function of the valve is to release the gases infiltrated into the watch during a saturation dive. When going up, the pressure created by these gases, generally Helium, can damage the watch.
Des variantes de la forme d’exécution représentée dans les figures sont envisageables par l’homme du métier, sans sortir de la portée de l’invention telle que définie par les revendications. Par exemple, la gorge 19 entre le corps de la couronne 6 et l’axe 9 en coopération avec la partie du tube 8 qui dépasse de la carrure 2 résulte en une structure robuste ayant de bonnes propriétés d’étanchéité. Néanmoins, d’autres formes de couronnes solidaires à un axe sont imaginables. Par exemple, il est envisageable de réaliser une couronne sans gorge 19, avec un filetage pourvu sur le premier tronçon cylindrique 11. Par ailleurs, lesdits premier et deuxième tronçons cylindriques ne sont pas indispensables : les positions extrêmes de la goupille 21 par rapport au tronçon tronconique 12 peuvent se trouver sur ledit tronçon tronconique lui-même. L’axe 9 peut être aménagé directement dans un trou fileté dans la carrure 2 plutôt que dans un tube 8 monté dans la carrure. En outre, les trous 15 ne sont que des exemples d’espaces récepteurs aptes à recevoir l’extrémité de la goupille 21. Dans une autre forme d’exécution, la lunette 3 pourrait comprendre une denture axiale sur sa surface inférieure, avec les creux entre deux dents formant un espace récepteur pour la goupille 21. Dans ce cas, l’extrémité de la goupille 21 est de préférence usinée de manière à ce que la forme de ladite extrémité corresponde à la forme des creux.  Variants of the embodiment shown in the figures can be envisaged by a person skilled in the art, without departing from the scope of the invention as defined by the claims. For example, the groove 19 between the body of the crown 6 and the axis 9 in cooperation with the part of the tube 8 which protrudes from the middle part 2 results in a robust structure having good sealing properties. However, other forms of crowns integral with an axis are conceivable. For example, it is conceivable to produce a crown without a groove 19, with a thread provided on the first cylindrical section 11. Furthermore, said first and second cylindrical sections are not essential: the extreme positions of the pin 21 relative to the section frustoconical 12 can be on said frustoconical section itself. The axis 9 can be fitted directly into a threaded hole in the middle part 2 rather than in a tube 8 mounted in the middle part. In addition, the holes 15 are only examples of receiving spaces capable of receiving the end of the pin 21. In another embodiment, the bezel 3 could include an axial toothing on its lower surface, with the recesses between two teeth forming a receiving space for the pin 21. In this case, the end of the pin 21 is preferably machined so that the shape of said end corresponds to the shape of the recesses.

Claims

Revendications claims
1. Boîte de montre comprenant une carrure (2) et une lunette tournante (3) montée sur la face supérieure de la carrure (2), la lunette (3) étant pourvue d’une pluralité d’espaces récepteurs (15) distribués de manière régulière sur sa surface inférieure, caractérisée en ce que la boîte de montre est pourvue d’un système de verrouillage de la lunette (3) 1. Watch case comprising a middle part (2) and a rotating bezel (3) mounted on the upper face of the middle part (2), the bezel (3) being provided with a plurality of receiving spaces (15) distributed from evenly on its lower surface, characterized in that the watch case is provided with a bezel locking system (3)
comportant les éléments suivants : with the following:
• un premier trou (7) usiné dans la carrure (2) et orienté de manière radiale par rapport à la lunette (3),  A first hole (7) machined in the middle part (2) and oriented radially relative to the bezel (3),
• un filetage intérieur sur au moins une partie de la surface dudit premier trou (7), ou sur la surface interne d’un tube (8) monté de manière fixe dans le premier trou (7),  • an internal thread on at least part of the surface of said first hole (7), or on the internal surface of a tube (8) fixedly mounted in the first hole (7),
• une couronne (6) rotative, la couronne (6) étant solidaire d’un axe (9) aménagé dans le premier trou (7), l’axe (9) comprenant les éléments suivants arrangés dans la direction venant de l’extérieur de la carrure (2) vers l’intérieur :  • a rotary crown (6), the crown (6) being integral with an axis (9) arranged in the first hole (7), the axis (9) comprising the following elements arranged in the direction coming from the outside from the middle (2) inwards:
o un tronçon (10) pourvu d’un filetage extérieur correspondant audit filetage intérieur,  o a section (10) provided with an external thread corresponding to said internal thread,
o un tronçon tronconique (12) ayant un diamètre qui diminue en ladite direction,  a tapered section (12) having a diameter which decreases in said direction,
o une collerette de terminaison (14),  o a termination flange (14),
• une goupille (21 ) aménagée dans un deuxième trou (20) dans la carrure (2), ledit deuxième trou (20) étant orienté transversalement par rapport au premier trou (7), la goupille (21 ) étant munie d’un ressort (22) qui est précontraint de façon à maintenir un contact physique entre une première extrémité de la goupille (21 ) et la surface extérieure de l’axe (9), la goupille (21 ) étant dimensionnée de manière à ce que sa deuxième extrémité puisse se loger dans un des espaces récepteurs (15) de la lunette (3), et dans lequel les éléments sont aménagés de sorte que : • a pin (21) arranged in a second hole (20) in the middle part (2), said second hole (20) being oriented transversely relative to the first hole (7), the pin (21) being provided with a spring (22) which is prestressed so as to maintain physical contact between a first end of the pin (21) and the external surface of the pin (9), the pin (21) being dimensioned so that its second end can be housed in one of the receiving spaces (15) of the telescope (3), and in which the elements are arranged so that:
• le vissage de la couronne (6) vers l’intérieur de la carrure (2) actionne un mouvement de la goupille (21 ) à l’encontre de la précontrainte du ressort (22), par l’interaction entre la première extrémité de la goupille (21 ) et le tronçon tronconique (12), ce mouvement menant au logement de la goupille (21 ) dans un des espaces récepteurs (15) de la lunette (3), et par là-même au verrouillage de la lunette (3) à la fin de l’action de vissage, • the screwing of the crown (6) towards the inside of the middle part (2) activates a movement of the pin (21) against the preload of the spring (22), by the interaction between the first end of the pin (21) and the frustoconical section (12), this movement leading to the housing of the pin (21) in one of the receiving spaces (15) of the telescope (3), and thereby to the locking of the telescope ( 3) at the end of the screwing action,
• le dévissage de la couronne (6) dégage la goupille (21 ) hors dudit espace récepteur (15) sous l’action de la force de rappel exercée par le ressort (22), et par là-même déverrouille la lunette (3) à la fin de l’action de dévissage. • unscrewing the crown (6) releases the pin (21) out of said receiving space (15) under the action of the restoring force exerted by the spring (22), and thereby unlocks the bezel (3) at the end of the unscrewing action.
2. La boîte selon la revendication 1 , dans laquelle l’axe (9) comporte également un premier tronçon cylindrique (1 1 ) et un deuxième tronçon cylindrique (13) situés de part et d’autre du tronçon tronconique (12), de manière à ce que le diamètre du tronçon tronconique (12) change progressivement depuis le diamètre du premier tronçon cylindrique (1 1 ) vers le diamètre du deuxième tronçon cylindrique (13). 2. The box according to claim 1, wherein the axis (9) also comprises a first cylindrical section (1 1) and a second cylindrical section (13) located on either side of the frustoconical section (12), so that the diameter of the frustoconical section (12) gradually changes from the diameter of the first cylindrical section (1 1) to the diameter of the second cylindrical section (13).
3. La boîte selon l’une quelconque des revendications 1 et 2, dans laquelle un tube (8) est monté de manière fixe dans le premier trou (7), ledit tube (8) comprenant une partie qui dépasse de la paroi latérale extérieure de la carrure (2) et dans laquelle au moins la surface interne de la partie du tube dépassant de ladite paroi est pourvue dudit filetage intérieur. 3. The box according to any one of claims 1 and 2, wherein a tube (8) is fixedly mounted in the first hole (7), said tube (8) comprising a part which protrudes from the outer side wall. of the middle part (2) and in which at least the internal surface of the part of the tube projecting from said wall is provided with said internal thread.
4. La boîte selon la revendication 3, dans laquelle une gorge circulaire (19) est présente entre le corps de la couronne (6) et le tronçon à filetage (10) de l’axe, de manière à ce que la partie dépassant du tube (8) entre dans ladite gorge (19) quand la couronne (6) est vissée vers sa position de verrouillage. 4. The box according to claim 3, in which a circular groove (19) is present between the body of the crown (6) and the threaded section (10) of the axis, so that the part projecting from the tube (8) enters said groove (19) when the crown (6) is screwed towards its locking position.
5. La boîte selon la revendication 4, dans laquelle le tube (8) est pourvu d’une portion (25) ayant un diamètre supérieur à celui du reste du tube (8), ladite portion (25) étant montée à butée contre la paroi latérale extérieure de la carrure (2), et dans laquelle un joint d’étanchéité (26) est monté entre le corps de le couronne (6) et l’extérieur de la partie du tube (8) dépassant de ladite paroi, de façon à ce que le joint (26) soit pressé contre la portion à diamètre supérieur (25) quand la couronne (6) et l’axe (9) arrivent à leur position de verrouillage. 5. The box according to claim 4, in which the tube (8) is provided with a portion (25) having a diameter greater than that of the rest of the tube (8), said portion (25) being mounted at abutment against the outer side wall of the middle part (2), and in which a seal (26) is mounted between the body of the crown (6) and the outside of the part of the tube (8) projecting from said wall, so that the seal (26) is pressed against the larger diameter portion (25) when the crown (6) and the axis (9) arrive at their locked position.
6. La boîte selon l’une quelconque des revendications précédentes, comprenant en outre une soupape de dépressurisation (29) aménagée à l’intérieur de l’axe (9). 6. The box according to any one of the preceding claims, further comprising a depressurization valve (29) arranged inside the axis (9).
7. La boîte selon l’une quelconque des revendications précédentes, dans laquelle le diamètre de la collerette de terminaison (14) correspond au diamètre du premier trou (7) ou d’un tube (8) monté de manière fixe dans ledit premier trou (7), de manière à ce que la collerette (14) puisse coulisser dans le premier trou (7) ou dans le tube (8). 7. The box according to any one of the preceding claims, in which the diameter of the termination flange (14) corresponds to the diameter of the first hole (7) or of a tube (8) fixedly mounted in said first hole (7), so that the flange (14) can slide in the first hole (7) or in the tube (8).
8. Montre pourvue d’une boîte de montre telle que décrite dans l’une quelconque des revendications précédentes. 8. Watch provided with a watch case as described in any one of the preceding claims.
EP19732353.8A 2018-07-09 2019-06-20 Watch provided with a rotating bezel with system for locking the bezel provided with an integrated helium valve Active EP3821300B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP18182381.6A EP3594758A1 (en) 2018-07-09 2018-07-09 Watch provided with a rotating bezel with system for locking the bezel provided with an integrated helium valve
PCT/EP2019/066357 WO2020011512A1 (en) 2018-07-09 2019-06-20 Watch having a rotating bezel with bezel locking system provided with an integrated helium valve

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EP3821300A1 true EP3821300A1 (en) 2021-05-19
EP3821300B1 EP3821300B1 (en) 2024-01-17

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EP18182381.6A Withdrawn EP3594758A1 (en) 2018-07-09 2018-07-09 Watch provided with a rotating bezel with system for locking the bezel provided with an integrated helium valve
EP19732353.8A Active EP3821300B1 (en) 2018-07-09 2019-06-20 Watch provided with a rotating bezel with system for locking the bezel provided with an integrated helium valve

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EP (2) EP3594758A1 (en)
JP (1) JP7082213B2 (en)
KR (1) KR20200139744A (en)
CN (1) CN112154380B (en)
TW (1) TWI701531B (en)
WO (1) WO2020011512A1 (en)

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JP2021519932A (en) 2021-08-12
US20210116868A1 (en) 2021-04-22
JP7082213B2 (en) 2022-06-07
EP3821300B1 (en) 2024-01-17
CN112154380B (en) 2022-07-01
EP3594758A1 (en) 2020-01-15
WO2020011512A1 (en) 2020-01-16
KR20200139744A (en) 2020-12-14
US11994830B2 (en) 2024-05-28
TW202014812A (en) 2020-04-16
TWI701531B (en) 2020-08-11
CN112154380A (en) 2020-12-29

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