EP2639656A1 - Control device for a diving watch - Google Patents

Control device for a diving watch Download PDF

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Publication number
EP2639656A1
EP2639656A1 EP12159349.5A EP12159349A EP2639656A1 EP 2639656 A1 EP2639656 A1 EP 2639656A1 EP 12159349 A EP12159349 A EP 12159349A EP 2639656 A1 EP2639656 A1 EP 2639656A1
Authority
EP
European Patent Office
Prior art keywords
box
pusher
control lever
user
rod
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
EP12159349.5A
Other languages
German (de)
French (fr)
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EP2639656B1 (en
Inventor
Christophe Robert
Julien Bernard
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.)
Graham SA
Original Assignee
Graham SA
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Filing date
Publication date
Application filed by Graham SA filed Critical Graham SA
Priority to EP12159349.5A priority Critical patent/EP2639656B1/en
Publication of EP2639656A1 publication Critical patent/EP2639656A1/en
Application granted granted Critical
Publication of EP2639656B1 publication Critical patent/EP2639656B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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    • G—PHYSICS
    • G04—HOROLOGY
    • G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
    • G04B37/00—Cases
    • G04B37/08—Hermetic sealing of openings, joints, passages or slits
    • G04B37/10—Hermetic sealing of openings, joints, passages or slits of winding stems
    • G04B37/106—Hermetic sealing of openings, joints, passages or slits of winding stems of push buttons
    • G—PHYSICS
    • G04—HOROLOGY
    • G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
    • G04B37/00—Cases
    • G04B37/04—Mounting the clockwork in the case; Shock absorbing mountings
    • G04B37/049—Mountings for sound-damping
    • 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
    • G04B47/00—Time-pieces combined with other articles which do not interfere with the running or the time-keeping of the time-piece
    • G04B47/06—Time-pieces combined with other articles which do not interfere with the running or the time-keeping of the time-piece with attached measuring instruments, e.g. pedometer, barometer, thermometer or compass
    • G04B47/066—Time-pieces combined with other articles which do not interfere with the running or the time-keeping of the time-piece with attached measuring instruments, e.g. pedometer, barometer, thermometer or compass with a pressure sensor

Definitions

  • the present invention relates to a watch case having a middle and a control device of a clock mechanism comprising a pusher, arranged through a suitable opening of the middle part and intended to act on a control lever of the watch mechanism, in response to an action of a user.
  • the significant pressure that a pusher may experience at 600 meters deep, for example or even more, may be sufficient to that it actuates the mechanism it controls, unintentionally, if no special precautions are taken.
  • control levers of watch mechanisms generally have a minimum value of the force that must be applied to them to actuate the corresponding mechanism.
  • the surrounding pressure at great depths acts on a pusher to move towards the inside of the watch case, possibly to the point that it actuates the clock mechanism. This risk is related to the fact that the pressure in the watch case remains close to atmospheric pressure, giving rise to a significant differential pressure between the inside and the outside of the box.
  • Some pushers such as that described in the patent cited above, are screwed in order to improve the sealing. However, they become unusable during a dive.
  • a main object of the present invention is to overcome the disadvantages of the control devices known from the prior art, by proposing an alternative watch case construction, the control members of which have improved reliability, including under difficult conditions such as in diving.
  • the present invention relates more particularly to a control device of the type indicated above, characterized in that the control device comprises an intermediate rocker intended to be interposed between the pusher and the control lever of the watch mechanism, the Intermediate rocker being arranged to present a rotary movement of axis X1 and comprising an actuating finger for acting on the control lever of the watch mechanism in response to the action of the user.
  • the intermediate rocker has a bearing surface arranged facing the pusher and on which the latter exerts a pressure in response to the action of the user, the bearing surface being located between the axis of rotation X1 and the actuating finger.
  • a lever arm is implemented between the pusher and the control lever of the watch mechanism, such that the force that it is necessary to apply to the pusher to actuate the clock mechanism is greater than the force required for the direct actuation of its control lever.
  • control device comprises an external control member, arranged to act on the pusher in response to the action of the user, and at least one return spring arranged between the middle and the organ. external control.
  • control member may comprise a control lever pivotally mounted on the middle part along an axis of rotation X2.
  • the external control lever has its own return spring and is therefore decoupled from the pusher, which implies that its angular position is not dependent on the external pressure.
  • An important consequence of this construction lies in the possibility of providing that the pusher has a surface subjected to the external pressure of small dimensions, while the control lever can have an extended gripping surface, to facilitate its handling, the force experienced by an object bathed in a certain pressure being proportional to its surface which undergoes this pressure.
  • the gripping surface of the control lever intended to receive the pressure exerted by a user
  • the axis of rotation X2 of the control lever are located on either side of a surface actuating the latter arranged opposite the pusher to act on it in response to the action of the user.
  • a second lever arm is implemented, whereby the force transmitted to the pusher by the control lever is greater than the force experienced by the control lever when a user exerts pressure on him.
  • the return spring of the control lever cooperates with a portion of the control lever located between the axis of rotation X2 and the actuating surface.
  • the pusher comprises a tube integral with the middle part and inside which is arranged a movable rod in translation.
  • the rod comprises two parts, a first has a free end located on the outside of the box and the second has a free end located inside the box and defining a stop to retain the rod inside the tube, a spring being arranged in the tube so as to act on the rod and push it towards the outside of the box.
  • At least one seal is preferably arranged between an inner wall of the tube and the rod.
  • the tube may advantageously be screwed, and possibly further glued, into the corresponding opening of the middle part.
  • the invention also relates to a timepiece comprising a box meeting the characteristics that have just been stated.
  • FIG. 1 is a simplified front view of a watch case having a controller according to a preferred embodiment of the present invention
  • the figure 2a represents a simplified sectional view of a first construction detail of the box illustrated on the figure 1 in a first configuration
  • the figure 2b represents a simplified sectional view of the construction detail of the figure 2a in a second configuration
  • the figure 3 represents a simplified sectional view of a second construction detail of the box illustrated on the figure 1 .
  • the figure 1 is a simplified front view of a watch case 1 having a controller according to a preferred embodiment of the present invention.
  • the box 1 illustrated is intended for the realization of a diving watch. It comprises a middle part 2 comprising two pairs of horns 4 intended to carry, each, a rod 6 for attaching an end of a bracelet (not shown).
  • the caseband 2 also carries a rotating bezel 8, well known in the field of diving watches.
  • a conventional winding and setting ring 10 is arranged at ten o'clock.
  • the construction of the crown and its winding stem (not visible) will not be described in detail here since it does not have a direct relationship with the present invention.
  • the box 1 is intended to accommodate a watch movement comprising a clock mechanism requiring the implementation of an additional control member, the push type, such as a chronograph mechanism, without limitation.
  • the pusher (visible on the Figures 2a and 2b ) is operable via a control lever 12, pivotally mounted along an axis of rotation X2 on an extension 14 of the middle part 2, here at nine hours for non-limiting illustration.
  • the control lever 12 has a gripping surface 16, advantageously ridged here, intended to be actuated by a user to control the operation of the chronograph mechanism (here of single-pusher type).
  • FIGS. 2a and 2b are simplified, similar sectional views illustrating the construction of the controller according to a preferred embodiment of the present invention, in respective first and second configurations.
  • the middle part 2 is provided with a substantially cylindrical opening 20 in which the pusher 22 is housed.
  • the pusher 22 comprises a tube 24 advantageously screwed into the opening 20 and possibly further glued, to ensure a good seal of the corresponding connection.
  • a rod 26 is housed inside the tube 24 so as to be able to move in translation in a substantially radial direction, between a rest position, illustrated in FIG. figure 2a , and an active position, illustrated on the figure 2b .
  • the latter is also in a rest position on the figure 2a , in which it is maintained under the effect of the action of a return spring 30, arranged between the middle part 2 and a portion 32 of the control lever, located between the axis of rotation X2 and the actuating surface 28.
  • the stroke of the control lever 12 towards the outside is preferably limited by a stop of the middle part not visible.
  • the inner end of the rod 26 is arranged in abutment against a bearing surface 34 of an intermediate rocker 36 mounted pivotally, along an axis of rotation X1, on a shoulder 38 formed in the inner wall of the middle 2.
  • the intermediate lever 36 carries a finger 40, at its free end, arranged so as to actuate a control lever (not visible) of the chronograph mechanism assembled on the watch movement 42.
  • the return of the intermediate lever in its rest position can be achieved by a return spring of the clock mechanism only or, alternatively, by an additional specific spring (not shown) without departing from the scope of the present invention.
  • control lever When the control lever is pressed by a user, to move from its rest position, illustrated on the figure 2a , in its active position, illustrated on the figure 2b , it moves the rod 26 of the pusher, towards the interior of the middle part, exerting pressure on it.
  • the rod 26 then acts in turn on the intermediate rocker 36, via its bearing surface 34, the finger 40 of the rocker exerting in turn a pressure on the control lever of the chronograph mechanism.
  • the figure 3 represents a simplified sectional view of the structure of the pusher 22, according to a preferred embodiment but not limiting.
  • the rod 26 is made in two parts 44, 46, assembled by screwing, for obvious reasons of assembly, the second part 46 having a greater diameter than the internal diameter of the tube 24.
  • the second portion 46 defines a stop holding the rod 26 in the tube 24 so that it can not leave the outer side.
  • Two-ring seals 48 are disposed between the inner wall of the tube 24 and the second portion 46 of the rod, against the end wall 48 of the tube 24, to seal the assembly.
  • a washer 50 rests on the O-ring seals to define a bearing surface for a first end of a helical spring 52, the second end of which is arranged in abutment against a shoulder 54 formed in the first portion 44 of the rod 26.
  • the spring 52 acts continuously on the rod 26 to push it towards the outside and, therefore, place the pusher 22 in its rest configuration.
  • Such control levers of watch mechanisms are typically subjected to a restoring force, exerted by a spring housed in the watch movement, which can be of the order of 10 to 40 Newtons approximately.
  • a first possible measure to avoid this risk is to reduce the surface of the pusher subjected to external pressure.
  • this measure is limited by the fact that the pusher must remain operable by the user and this, especially when it carries a combination of diving having a certain flexibility, making the manipulation of the pusher still more difficult.
  • reducing the dimensions of the pusher makes the measures necessary to ensure its tightness more complex.
  • the present invention consists of an alternative solution residing in the implementation of a lever arm, to reduce the impact of the external pressure on the control lever of the watch mechanism, by interposing the intermediate lever 36 between the pusher 22 and the control lever of the watch mechanism.
  • control lever 12 combined with the pusher and the intermediate lever makes it possible to facilitate the actuation of the clock mechanism when the watch is subjected to an ordinary external pressure, for example to the atmospheric pressure.
  • control lever 12 is arranged, with reference to the pusher 22, so as to implement a second lever arm, this time to increase the force experienced by the pusher with reference to the force exerted by the user on the control lever 12.

Abstract

The case has a watch mechanism whose control device comprises an intermediate rocker (36) intended to be interposed between a push rod (22) and a control lever of the mechanism. The rocker is arranged to present a movement of rotation axis (X1), and includes an actuation finger (40) intended to operate the lever in response to action of a user. The rocker has a bearing surface (34) arranged opposite to the rod. The rod exerts pressure on the surface in response to the user's action. The surface is located between the axis and the finger.

Description

Domaine techniqueTechnical area

La présente invention concerne une boîte de montre comportant une carrure et un dispositif de commande d'un mécanisme horloger comprenant un poussoir, agencé au travers d'une ouverture adaptée de la carrure et, destiné à agir sur un levier de commande du mécanisme horloger, en réponse à une action d'un utilisateur.The present invention relates to a watch case having a middle and a control device of a clock mechanism comprising a pusher, arranged through a suitable opening of the middle part and intended to act on a control lever of the watch mechanism, in response to an action of a user.

Etat de la techniqueState of the art

De tels dispositifs sont déjà connus de l'état de la technique, comme par exemple de l'ouvrage intitulé " Théorie d'horlogerie", de C.-A. Reymondin et al., édité par la Fédération des Ecoles Techniques (Suisse), ISBN 2-940025-10-X, qui présente, aux pages 232-233 , un mouvement de type chronographe ayant un levier de commande du mécanisme de chronographe actionné par un poussoir dont les déplacements sont commandés depuis l'extérieur de la boîte (non visible sur les illustrations). Les pages 262 et 264 de ce même ouvrage fournissent également des indications sur les structures de poussoirs et leur implantation dans une boîte de montre.Such devices are already known from the state of the art, such as the book entitled " Horological theory ", by C.-A.Reymondin et al., Published by the Federation of Technical Schools (Switzerland), ISBN 2-940025-10-X, which presents, on pages 232-233 , a chronograph-type movement having a control lever of the chronograph mechanism operated by a pusher whose movements are controlled from outside the box (not visible in the illustrations). Pages 262 and 264 of this same work also provide information on push structures and their placement in a watch case.

Toutefois, ces structures conventionnelles peuvent se révéler inadaptées dans certaines conditions d'utilisation des montres correspondantes.However, these conventional structures may be unsuitable under certain conditions of use of the corresponding watches.

Ainsi, par exemple, le port d'une montre dans la pratique de la plongée en grandes profondeurs peut se révéler problématique en ce qui concerne la fiabilité de fonctionnement de ces dispositifs de commande.Thus, for example, the wearing of a watch in the practice of diving at great depths can be problematic as regards the reliable operation of these control devices.

En effet, la pression importante qui règne sous l'eau pose des problèmes d'étanchéité, ceux-ci étant particulièrement délicats à résoudre au niveau des organes de commande nécessitant la réalisation d'ouvertures dans la boîte.Indeed, the significant pressure that prevails under the water poses sealing problems, these being particularly difficult to solve at the level of the control members requiring the realization of openings in the box.

De nombreux brevets sont déjà connus qui traitent de la structure de tels organes de commande présentant une étanchéité améliorée, comme par exemple le brevet CH 423638 .Many patents are already known which deal with the structure of such control members having improved sealing, such as for example the patent CH 423638 .

Par ailleurs, la pression importante que peut subir un poussoir à 600 mètres de profondeur, par exemple voire plus, peut être suffisante pour que celui-ci actionne le mécanisme qu'il commande, de manière involontaire, si aucune précaution particulière n'est prise.Furthermore, the significant pressure that a pusher may experience at 600 meters deep, for example or even more, may be sufficient to that it actuates the mechanism it controls, unintentionally, if no special precautions are taken.

En effet, les leviers de commande de mécanismes horlogers présentent généralement une valeur minimale de la force qu'il faut leur appliquer pour actionner le mécanisme correspondant. Aussi, sans précaution particulière, il se peut que la pression environnante en grandes profondeurs agisse sur un poussoir pour le déplacer en direction de l'intérieur de la boîte de montre, éventuellement au point qu'il actionne le mécanisme horloger. Ce risque est lié au fait que la pression dans la boîte de montre reste proche de la pression atmosphérique, donnant lieu à un différentiel important de pression entre l'intérieur et l'extérieur de la boîte.Indeed, the control levers of watch mechanisms generally have a minimum value of the force that must be applied to them to actuate the corresponding mechanism. Also, without special precautions, it may be that the surrounding pressure at great depths acts on a pusher to move towards the inside of the watch case, possibly to the point that it actuates the clock mechanism. This risk is related to the fact that the pressure in the watch case remains close to atmospheric pressure, giving rise to a significant differential pressure between the inside and the outside of the box.

Certains poussoirs, comme celui décrit dans le brevet cité précédemment, sont vissés dans le but d'en améliorer l'étanchéité. Toutefois, ils deviennent alors inutilisables en cours de plongée.Some pushers, such as that described in the patent cited above, are screwed in order to improve the sealing. However, they become unusable during a dive.

Divulgation de l'invention Disclosure of the invention

Un but principal de la présente invention est de pallier les inconvénients des dispositifs de commande connus de l'art antérieur, en proposant une construction de boîte de montre alternative, dont les organes de commande présentent une fiabilité améliorée, y compris dans des conditions difficiles comme en plongée.A main object of the present invention is to overcome the disadvantages of the control devices known from the prior art, by proposing an alternative watch case construction, the control members of which have improved reliability, including under difficult conditions such as in diving.

A cet effet, la présente invention concerne plus particulièrement un dispositif de commande du type indiqué plus haut, caractérisé par le fait que le dispositif de commande comporte une bascule intermédiaire destinée à être interposée entre le poussoir et le levier de commande du mécanisme horloger, la bascule intermédiaire étant agencée pour présenter un mouvement rotatif d'axe X1 et, comprenant un doigt d'actionnement destiné à agir sur le levier de commande du mécanisme horloger en réponse à l'action de l'utilisateur. En outre, la bascule intermédiaire présente une surface d'appui agencée en regard du poussoir et sur laquelle ce dernier exerce une pression en réponse à l'action de l'utilisateur, cette surface d'appui étant située entre l'axe de rotation X1 et le doigt d'actionnement.For this purpose, the present invention relates more particularly to a control device of the type indicated above, characterized in that the control device comprises an intermediate rocker intended to be interposed between the pusher and the control lever of the watch mechanism, the Intermediate rocker being arranged to present a rotary movement of axis X1 and comprising an actuating finger for acting on the control lever of the watch mechanism in response to the action of the user. In addition, the intermediate rocker has a bearing surface arranged facing the pusher and on which the latter exerts a pressure in response to the action of the user, the bearing surface being located between the axis of rotation X1 and the actuating finger.

Grâce à ces caractéristiques, un bras de levier est mis en oeuvre, entre le poussoir et le levier de commande du mécanisme horloger, tel que la force qu'il est nécessaire d'appliquer sur le poussoir pour actionner le mécanisme horloger est supérieure à la force nécessaire à l'actionnement direct de son levier de commande. Ainsi, il est possible d'ajuster la valeur de ce bras de levier en fonction de la profondeur maximale pour laquelle l'étanchéité de la montre concernée sera garantie, afin d'éviter un déclenchement du mécanisme horloger du seul fait de la pression environnante à laquelle serait soumis le poussoir à une telle profondeur.Thanks to these characteristics, a lever arm is implemented between the pusher and the control lever of the watch mechanism, such that the force that it is necessary to apply to the pusher to actuate the clock mechanism is greater than the force required for the direct actuation of its control lever. Thus, it is possible to adjust the value of this lever arm according to the maximum depth for which the tightness of the watch concerned will be guaranteed, in order to avoid a triggering of the clock mechanism simply because of the surrounding pressure to which would be subject to the pusher at such a depth.

Selon un mode de réalisation préféré, le dispositif de commande comprend un organe de commande externe, agencé pour agir sur le poussoir en réponse à l'action de l'utilisateur, et au moins un ressort de rappel agencé entre la carrure et l'organe de commande externe.According to a preferred embodiment, the control device comprises an external control member, arranged to act on the pusher in response to the action of the user, and at least one return spring arranged between the middle and the organ. external control.

Avantageusement, l'organe de commande peut comporter un levier de commande monté pivotant sur la carrure suivant un axe de rotation X2.Advantageously, the control member may comprise a control lever pivotally mounted on the middle part along an axis of rotation X2.

Ainsi, le levier de commande externe dispose de son propre ressort de rappel et est par conséquent découplé du poussoir, ce qui implique que sa position angulaire n'est pas dépendante de la pression extérieure. Une conséquence importante de cette construction réside dans la possibilité de prévoir que le poussoir présente une surface soumise à la pression extérieure de faibles dimensions, tandis que le levier de commande peut présenter une surface de préhension étendue, pour faciliter sa manipulation, la force subie par un objet baignant dans une certaine pression étant proportionnelle à sa surface qui subit cette pression.Thus, the external control lever has its own return spring and is therefore decoupled from the pusher, which implies that its angular position is not dependent on the external pressure. An important consequence of this construction lies in the possibility of providing that the pusher has a surface subjected to the external pressure of small dimensions, while the control lever can have an extended gripping surface, to facilitate its handling, the force experienced by an object bathed in a certain pressure being proportional to its surface which undergoes this pressure.

De manière avantageuse, on peut prévoir que la surface de préhension du levier de commande, destinée à recevoir la pression exercée par un utilisateur, et l'axe de rotation X2 du levier de commande sont situés de part et d'autre d'une surface d'actionnement de ce dernier agencée en regard du poussoir pour agir sur lui en réponse à l'action de l'utilisateur.Advantageously, it can be provided that the gripping surface of the control lever, intended to receive the pressure exerted by a user, and the axis of rotation X2 of the control lever are located on either side of a surface actuating the latter arranged opposite the pusher to act on it in response to the action of the user.

Grâce à ces caractéristiques supplémentaires, un second bras de levier est mis en oeuvre, par lequel la force transmise au poussoir par le levier de commande est supérieure à la force subie par le levier de commande lorsqu'un utilisateur exerce une pression sur lui.With these additional features, a second lever arm is implemented, whereby the force transmitted to the pusher by the control lever is greater than the force experienced by the control lever when a user exerts pressure on him.

Par ailleurs, on peut prévoir, de manière non limitative, que le ressort de rappel du levier de commande coopère avec une portion du levier de commande située entre l'axe de rotation X2 et la surface d'actionnement.Furthermore, it can be provided, without limitation, that the return spring of the control lever cooperates with a portion of the control lever located between the axis of rotation X2 and the actuating surface.

Selon une variante de réalisation préférée, le poussoir comporte un tube solidaire de la carrure et à l'intérieur duquel est agencée une tige mobile en translation. Plus précisément, on peut prévoir que la tige comprend deux parties dont une première présente une extrémité libre située du côté de l'extérieur de la boîte et la seconde présente une extrémité libre située à l'intérieur de la boîte et définissant une butée pour retenir la tige à l'intérieur du tube, un ressort étant agencé dans le tube de manière à agir sur la tige et la repousser en direction de l'extérieur de la boîte. Une garniture d'étanchéité, au moins, est préférablement agencée entre une paroi interne du tube et la tige.According to a preferred embodiment, the pusher comprises a tube integral with the middle part and inside which is arranged a movable rod in translation. More specifically, it can be provided that the rod comprises two parts, a first has a free end located on the outside of the box and the second has a free end located inside the box and defining a stop to retain the rod inside the tube, a spring being arranged in the tube so as to act on the rod and push it towards the outside of the box. At least one seal is preferably arranged between an inner wall of the tube and the rod.

Par ailleurs, le tube peut avantageusement être vissé, et éventuellement collé en plus, dans l'ouverture correspondante de la carrure.Moreover, the tube may advantageously be screwed, and possibly further glued, into the corresponding opening of the middle part.

L'invention concerne également une pièce d'horlogerie comportant une boîte répondant aux caractéristiques qui viennent d'être énoncées.The invention also relates to a timepiece comprising a box meeting the characteristics that have just been stated.

Brève description des dessinsBrief description of the drawings

D'autres caractéristiques et avantages de la présente invention apparaîtront plus clairement à la lecture de la description détaillée d'un mode de réalisation préféré qui suit, faite en référence aux dessins annexés donnés à titre d'exemples non limitatifs et dans lesquels:Other features and advantages of the present invention will appear more clearly on reading the detailed description of a preferred embodiment which follows, made with reference to the accompanying drawings given by way of non-limiting examples and in which:

- la figure 1 représente une vue générale de face simplifiée d'une boîte de montre comportant un dispositif de commande selon un mode de réalisation préféré de la présente invention;- the figure 1 is a simplified front view of a watch case having a controller according to a preferred embodiment of the present invention;

- la figure 2a représente une vue en coupe simplifiée d'un premier détail de construction de la boîte illustrée sur la figure 1, dans une première configuration;- the figure 2a represents a simplified sectional view of a first construction detail of the box illustrated on the figure 1 in a first configuration;

- la figure 2b représente une vue en coupe simplifiée du détail de construction de la figure 2a, dans une seconde configuration, et- the figure 2b represents a simplified sectional view of the construction detail of the figure 2a in a second configuration, and

- la figure 3 représente une vue en coupe simplifiée d'un second détail de construction de la boîte illustrée sur la figure 1.- the figure 3 represents a simplified sectional view of a second construction detail of the box illustrated on the figure 1 .

Mode(s) de réalisation de l'inventionMode (s) of realization of the invention

La figure 1 représente une vue générale de face simplifiée d'une boîte 1 de montre comportant un dispositif de commande selon un mode de réalisation préféré de la présente invention.The figure 1 is a simplified front view of a watch case 1 having a controller according to a preferred embodiment of the present invention.

Plus précisément, la boîte 1 illustrée est destinée à la réalisation d'une montre de plongée. Elle comporte une carrure 2 comprenant deux paires de cornes 4 destinées à porter, chacune, une tige 6 de fixation d'une extrémité d'un bracelet (non représenté). La carrure 2 porte également une lunette tournante 8, bien connue dans le domaine des montres de plongée.More specifically, the box 1 illustrated is intended for the realization of a diving watch. It comprises a middle part 2 comprising two pairs of horns 4 intended to carry, each, a rod 6 for attaching an end of a bracelet (not shown). The caseband 2 also carries a rotating bezel 8, well known in the field of diving watches.

Une couronne 10 conventionnelle de remontage et de mise à l'heure est agencée à dix heures. La construction de la couronne et de sa tige de remontoir (non visible) ne sera pas décrite en détail ici puisqu'elle ne présente pas de rapport direct avec la présente invention.A conventional winding and setting ring 10 is arranged at ten o'clock. The construction of the crown and its winding stem (not visible) will not be described in detail here since it does not have a direct relationship with the present invention.

De manière préférée, la boîte 1 est destinée à loger un mouvement horloger comportant un mécanisme horloger nécessitant la mise en oeuvre d'un organe de commande supplémentaire, du type poussoir, comme par exemple un mécanisme de chronographe, à titre non limitatif.Preferably, the box 1 is intended to accommodate a watch movement comprising a clock mechanism requiring the implementation of an additional control member, the push type, such as a chronograph mechanism, without limitation.

Selon un mode de réalisation préféré du dispositif de commande selon la présente invention, le poussoir (visible sur les figures 2a et 2b) est actionnable par l'intermédiaire d'un levier de commande 12, monté pivotant suivant un axe de rotation X2 sur une extension 14 de la carrure 2, située ici à neuf heures à titre illustratif non limitatif.According to a preferred embodiment of the control device according to the present invention, the pusher (visible on the Figures 2a and 2b ) is operable via a control lever 12, pivotally mounted along an axis of rotation X2 on an extension 14 of the middle part 2, here at nine hours for non-limiting illustration.

Le levier de commande 12 présente une surface de préhension 16, avantageusement striée ici, destinée à être actionnée par un utilisateur pour commander le fonctionnement du mécanisme de chronographe (ici de type mono-poussoir).The control lever 12 has a gripping surface 16, advantageously ridged here, intended to be actuated by a user to control the operation of the chronograph mechanism (here of single-pusher type).

Les figures 2a et 2b représentent des vues en coupe simplifiées, similaires, illustrant la construction du dispositif de commande selon un mode de réalisation préféré de la présente invention, dans des première et seconde configurations respectives.The Figures 2a and 2b are simplified, similar sectional views illustrating the construction of the controller according to a preferred embodiment of the present invention, in respective first and second configurations.

II ressort de ces figures que la carrure 2 est pourvue d'une ouverture 20 sensiblement cylindrique dans laquelle est logé le poussoir 22.It emerges from these figures that the middle part 2 is provided with a substantially cylindrical opening 20 in which the pusher 22 is housed.

Plus précisément, le poussoir 22 comporte un tube 24 avantageusement vissé dans l'ouverture 20 et éventuellement collé en plus, pour assurer une bonne étanchéité de la liaison correspondante.More specifically, the pusher 22 comprises a tube 24 advantageously screwed into the opening 20 and possibly further glued, to ensure a good seal of the corresponding connection.

Une tige 26 est logée à l'intérieur du tube 24 de manière à pouvoir se déplacer en translation suivant une direction sensiblement radiale, entre une position de repos, illustrée sur la figure 2a, et une position active, illustrée sur la figure 2b.A rod 26 is housed inside the tube 24 so as to be able to move in translation in a substantially radial direction, between a rest position, illustrated in FIG. figure 2a , and an active position, illustrated on the figure 2b .

On constate sur la figure 2a que, dans la position de repos du poussoir, sa tige 26 est agencée vers l'extérieur de la boîte, contre une surface d'actionnement 28 du levier de commande 12.We see on the figure 2a that, in the rest position of the pusher, its rod 26 is arranged towards the outside of the box, against an actuating surface 28 of the control lever 12.

Ce dernier est également dans une position de repos sur la figure 2a, dans laquelle il est maintenu sous l'effet de l'action d'un ressort de rappel 30, agencé entre la carrure 2 et une portion 32 du levier de commande, située entre l'axe de rotation X2 et la surface d'actionnement 28. La course du levier de commande 12 en direction de l'extérieur est préférablement limitée par une butée de la carrure non visible.The latter is also in a rest position on the figure 2a , in which it is maintained under the effect of the action of a return spring 30, arranged between the middle part 2 and a portion 32 of the control lever, located between the axis of rotation X2 and the actuating surface 28. The stroke of the control lever 12 towards the outside is preferably limited by a stop of the middle part not visible.

On peut également prévoir une butée 33 supplémentaire, sur la carrure, pour coopérer avec le levier de commande dans sa position active.It is also possible to provide an additional stop 33 on the middle part to cooperate with the control lever in its active position.

Par ailleurs, l'extrémité interne de la tige 26 est agencée en butée contre une surface d'appui 34 d'une bascule intermédiaire 36 montée à pivot, suivant un axe de rotation X1, sur un épaulement 38 ménagé dans la paroi interne de la carrure 2.Furthermore, the inner end of the rod 26 is arranged in abutment against a bearing surface 34 of an intermediate rocker 36 mounted pivotally, along an axis of rotation X1, on a shoulder 38 formed in the inner wall of the middle 2.

La bascule intermédiaire 36 porte un doigt 40, à son extrémité libre, agencé de manière à pouvoir actionner un levier de commande (non visible) du mécanisme de chronographe assemblé sur le mouvement horloger 42. Le retour de la bascule intermédiaire dans sa position de repos peut être réalisé par un ressort de rappel du mécanisme horloger uniquement ou, en alternative, par un ressort spécifique supplémentaire (non illustré) sans sortir du cadre de la présente invention.The intermediate lever 36 carries a finger 40, at its free end, arranged so as to actuate a control lever (not visible) of the chronograph mechanism assembled on the watch movement 42. The return of the intermediate lever in its rest position can be achieved by a return spring of the clock mechanism only or, alternatively, by an additional specific spring (not shown) without departing from the scope of the present invention.

Lorsque le levier de commande est pressé par un utilisateur, pour passer de sa position de repos, illustrée sur la figure 2a, à sa position active, illustrée sur la figure 2b, il déplace la tige 26 du poussoir, en direction de l'intérieur de la carrure, en exerçant une pression sur elle.When the control lever is pressed by a user, to move from its rest position, illustrated on the figure 2a , in its active position, illustrated on the figure 2b , it moves the rod 26 of the pusher, towards the interior of the middle part, exerting pressure on it.

La tige 26 agit alors à son tour sur la bascule intermédiaire 36, via sa surface d'appui 34, le doigt 40 de la bascule exerçant à son tour une pression sur le levier de commande du mécanisme de chronographe.The rod 26 then acts in turn on the intermediate rocker 36, via its bearing surface 34, the finger 40 of the rocker exerting in turn a pressure on the control lever of the chronograph mechanism.

La figure 3 représente une vue en coupe simplifiée de la structure du poussoir 22, selon un mode de réalisation préféré mais non limitatif.The figure 3 represents a simplified sectional view of the structure of the pusher 22, according to a preferred embodiment but not limiting.

La tige 26 est réalisée en deux parties 44, 46, assemblées par vissage, pour des raisons évidentes de montage, la seconde partie 46 présentant un diamètre plus important que le diamètre interne du tube 24. Ainsi, outre le fait qu'elle coopère avec la bascule intermédiaire 36, la seconde partie 46 définit une butée retenant la tige 26 dans le tube 24 pour qu'elle ne puisse pas sortir du côté extérieur.The rod 26 is made in two parts 44, 46, assembled by screwing, for obvious reasons of assembly, the second part 46 having a greater diameter than the internal diameter of the tube 24. Thus, besides the fact that it cooperates with the intermediate rocker 36, the second portion 46 defines a stop holding the rod 26 in the tube 24 so that it can not leave the outer side.

Deux joints ○-ring 48 sont disposés entre la paroi interne du tube 24 et la seconde partie 46 de la tige, contre la paroi d'extrémité 48 du tube 24, pour assurer l'étanchéité de l'assemblage.Two-ring seals 48 are disposed between the inner wall of the tube 24 and the second portion 46 of the rod, against the end wall 48 of the tube 24, to seal the assembly.

Une rondelle 50 repose sur les joints O-ring pour définir une surface d'appui pour une première extrémité d'un ressort hélicoïdal 52, dont la seconde extrémité est agencée en appui contre un épaulement 54 ménagé dans la première partie 44 de la tige 26. Le ressort 52 agit en permanence sur la tige 26 pour la repousser en direction de l'extérieur et, donc, placer le poussoir 22 dans sa configuration de repos.A washer 50 rests on the O-ring seals to define a bearing surface for a first end of a helical spring 52, the second end of which is arranged in abutment against a shoulder 54 formed in the first portion 44 of the rod 26. The spring 52 acts continuously on the rod 26 to push it towards the outside and, therefore, place the pusher 22 in its rest configuration.

Il ressort de la description qui précède que, dans le cas d'une construction selon l'état de la technique, c'est-à-dire lorsque le poussoir agit directement sur le levier de commande du mécanisme horloger, à partir d'une certaine valeur de pression extérieure, le poussoir peut être repoussé en direction du mouvement horloger au point d'actionner le mécanisme horloger de manière involontaire.It follows from the above description that, in the case of a construction according to the state of the art, that is to say when the pusher acts directly on the control lever of the watch mechanism, from a certain external pressure value, the pusher can be pushed towards the watch movement to the point of actuating the clock mechanism involuntarily.

De tels leviers de commande de mécanismes horlogers sont typiquement soumis à une force de rappel, exercée par un ressort logé dans le mouvement horloger, qui peut être de l'ordre de 10 à 40 Newtons environ.Such control levers of watch mechanisms are typically subjected to a restoring force, exerted by a spring housed in the watch movement, which can be of the order of 10 to 40 Newtons approximately.

Une première mesure possible pour éviter ce risque consiste à réduire la surface du poussoir soumise à la pression extérieure. Toutefois, cette mesure est limitée par le fait que le poussoir doit rester actionnable par l'utilisateur et ce, d'autant plus lorsque celui-ci porte une combinaison de plongée présentant une certaine souplesse, rendant la manipulation du poussoir encore plus difficile. En outre, la réduction des dimensions du poussoir rend plus complexes les mesures nécessaires à assurer son étanchéité.A first possible measure to avoid this risk is to reduce the surface of the pusher subjected to external pressure. However, this measure is limited by the fact that the pusher must remain operable by the user and this, especially when it carries a combination of diving having a certain flexibility, making the manipulation of the pusher still more difficult. In addition, reducing the dimensions of the pusher makes the measures necessary to ensure its tightness more complex.

La présente invention consiste en une solution alternative résidant dans la mise en oeuvre d'un bras de levier, permettant de réduire l'impact de la pression extérieure sur le levier de commande du mécanisme horloger, en interposant la bascule intermédiaire 36 entre le poussoir 22 et le levier de commande du mécanisme horloger.The present invention consists of an alternative solution residing in the implementation of a lever arm, to reduce the impact of the external pressure on the control lever of the watch mechanism, by interposing the intermediate lever 36 between the pusher 22 and the control lever of the watch mechanism.

En outre, dans une variante de réalisation préférée, la mise en oeuvre du levier de commande 12 combinée au poussoir et à la bascule intermédiaire permet de faciliter l'actionnement du mécanisme horloger lorsque la montre est soumise à une pression extérieure ordinaire, par exemple à la pression atmosphérique. En effet, il ressort de ce qui précède que le levier de commande 12 est agencé, en référence au poussoir 22, de manière à mettre en oeuvre un second bras de levier, visant cette fois à augmenter la force que subit le poussoir en référence à la force qu'exerce l'utilisateur sur le levier de commande 12.In addition, in a preferred embodiment variant, the use of the control lever 12 combined with the pusher and the intermediate lever makes it possible to facilitate the actuation of the clock mechanism when the watch is subjected to an ordinary external pressure, for example to the atmospheric pressure. Indeed, it follows from the foregoing that the control lever 12 is arranged, with reference to the pusher 22, so as to implement a second lever arm, this time to increase the force experienced by the pusher with reference to the force exerted by the user on the control lever 12.

Cette solution permet de plus d'offrir à l'utilisateur une surface de préhension 16 de dimensions importantes, sans que cela ait pour effet d'augmenter l'impact de la pression extérieure sur le poussoir 22, dans la mesure où la position du levier de commande n'est pas dépendante de la pression extérieure, de même que l'état de compression de son ressort de rappel.This solution also makes it possible to offer the user a gripping surface 16 of large dimensions, without this having the effect of increasing the impact of the external pressure on the pusher 22, insofar as the position of the lever The control system is not dependent on the external pressure, as is the compression state of its return spring.

Il est ainsi possible de définir un compromis optimal sur la force que doit appliquer l'utilisateur, sur le levier de commande 12, pour actionner le mécanisme horloger, d'une part, lorsque la montre est soumise à la pression atmosphérique et, d'autre part, lorsqu'elle est soumise à une pression importante en plongée, en modifiant non seulement les valeurs respectives des deux bras de levier mais également la constante de raideur du ressort de rappel 52 logé dans le poussoir 22.It is thus possible to define an optimal compromise on the force to be applied by the user, on the control lever 12, to actuate the clock mechanism, on the one hand, when the watch is subjected to atmospheric pressure and, on the other hand, when it is subjected to a large dive pressure, modifying not only the respective values of the two lever arms but also the stiffness constant of the return spring 52 housed in the pusher 22.

On obtient, grâce à la construction selon la présente invention, un dispositif de commande à la fiabilité améliorée tout en assurant un excellent niveau d'ergonomie dans sa manipulation.Thanks to the construction according to the present invention, a control device with improved reliability while ensuring an excellent level of ergonomics in its handling.

La description qui précède s'attache à décrire un mode de réalisation particulier à titre d'illustration non limitative et, l'invention n'est pas limitée à la mise en oeuvre de certaines caractéristiques particulières qui viennent d'être décrites, comme par exemple la forme de la boîte illustrée, le nombre de poussoirs qu'elle comprend et le ou les emplacements du ou des organes de commande, la structure du poussoir, voire le mode de rappel du levier de commande dans sa position de repos. De même, le mode d'implantation illustré et décrit pour la bascule intermédiaire n'est pas limitatif.The foregoing description attempts to describe a particular embodiment by way of non-limiting illustration and the invention is not limited to the implementation of certain particular features which have just been described, for example the shape of the illustrated box, the number of pushers it comprises and the location or locations of the control members, the structure of the pusher, or even the return mode of the control lever in its rest position. Similarly, the implementation mode illustrated and described for the intermediate lever is not limiting.

L'homme du métier ne rencontrera pas de difficulté particulière pour adapter le contenu de la présente divulgation à ses propres besoins et mettre en oeuvre une boîte de montre comportant un dispositif de commande, de type poussoir, destiné à actionner un levier de commande d'un mécanisme horloger logé dans la boîte, avec l'interposition d'une bascule intermédiaire permettant de mettre en oeuvre un bras de levier visant à réduire la force subie par le levier de commande du mécanisme horloger en référence à la force exercée par le poussoir sur la bascule intermédiaire, sans sortir du cadre de la présente invention.Those skilled in the art will not encounter any particular difficulty in adapting the content of the present disclosure to their own needs and implementing a watch case comprising a control device, of the push-button type, intended to actuate a control lever of a clock mechanism housed in the box, with the interposition of an intermediate lever for implementing a lever arm to reduce the force experienced by the control lever of the watch mechanism with reference to the force exerted by the push on the intermediate latch, without departing from the scope of the present invention.

Claims (10)

Boîte (1) de montre comportant une carrure (2) et un dispositif de commande d'un mécanisme horloger comprenant un poussoir (22), agencé au travers d'une ouverture (20) adaptée de ladite carrure (2) et, destiné à agir sur un levier de commande du mécanisme horloger, en réponse à une action d'un utilisateur, caractérisée
en ce que ledit dispositif de commande comporte une bascule intermédiaire (36) destinée à être interposée entre ledit poussoir (22) et le levier de commande du mécanisme horloger, ladite bascule intermédiaire (36) étant agencée pour présenter un mouvement rotatif d'axe X1 et, comprenant un doigt d'actionnement (40) destiné à agir sur le levier de commande du mécanisme horloger en réponse à l'action de l'utilisateur et,
en ce que ladite bascule intermédiaire (36) présente une surface d'appui (34) agencée en regard dudit poussoir (22) et sur laquelle ce dernier exerce une pression en réponse à l'action de l'utilisateur, ladite surface d'appui (34) étant située entre ledit axe de rotation X1 et ledit doigt d'actionnement (40).Watch case (1) comprising a caseband (2) and a device for controlling a watchmaking mechanism comprising a pusher (22), arranged through an opening (20) adapted to said middle part (2) and intended for acting on a control lever of the watch mechanism, in response to an action by a user, characterized
in that said control device comprises an intermediate rocker (36) intended to be interposed between said pusher (22) and the control lever of the watch mechanism, said intermediate rocker (36) being arranged to present a rotary movement of axis X1 and comprising an actuating finger (40) for acting on the control lever of the watch mechanism in response to the action of the user and,
in that said intermediate flip-flop (36) has a bearing surface (34) arranged facing said pusher (22) and on which said pusher exerts a pressure in response to the action of the user, said bearing surface (34) being located between said axis of rotation X1 and said actuating finger (40). Boîte (1) selon la revendication 1, caractérisée en ce que ledit dispositif de commande comprend un organe de commande externe (12), agencé pour agir sur ledit poussoir (22) en réponse à l'action de l'utilisateur, et au moins un ressort de rappel (30) agencé entre ladite carrure (2) et ledit organe de commande externe (12).Box (1) according to claim 1, characterized in that said control device comprises an external control member (12), arranged to act on said pusher (22) in response to the action of the user, and at least a return spring (30) arranged between said middle (2) and said external control member (12). Boîte (1) selon la revendication 2, caractérisée en ce que ledit organe de commande externe comprend un levier de commande (12) monté pivotant sur ladite carrure (2), suivant un axe de rotation X2.Box (1) according to claim 2, characterized in that said external control member comprises a control lever (12) pivotally mounted on said middle (2), along an axis of rotation X2. Boîte (1) selon la revendication 3, caractérisée en ce que ledit levier de commande (12) présente une surface de préhension (16) destinée à recevoir la pression de l'utilisateur, ladite surface de préhension (16) et ledit axe de rotation X2 étant respectivement situés de part et d'autre d'une surface d'actionnement (28) dudit levier de commande (12) agencée en regard dudit poussoir (22) pour agir sur lui en réponse à l'action de l'utilisateur.Box (1) according to claim 3, characterized in that said control lever (12) has a gripping surface (16) intended to receive the pressure of the user, said gripping surface (16) and said axis of rotation X2 are respectively located on either side of an actuating surface (28) of said control lever (12) arranged opposite said pusher (22) to act on it in response to the action of the user. Boîte (1) selon la revendication 4, caractérisée en ce que ledit ressort de rappel (30) coopère avec ledit levier de commande (12) sur une portion (32) de ce dernier située entre ledit axe de rotation X2 et ladite surface d'actionnement (28).Box (1) according to claim 4, characterized in that said return spring (30) cooperates with said control lever (12) on a portion (32) the latter located between said axis of rotation X2 and said actuating surface (28). Boîte (1) selon l'une quelconque des revendications précédentes, caractérisée en ce que ledit poussoir (22) comporte un tube (24) solidaire de ladite carrure (2) et à l'intérieur duquel est agencée une tige (26) mobile en translation.Box (1) according to any one of the preceding claims, characterized in that said pusher (22) comprises a tube (24) integral with said middle part (2) and inside which is arranged a rod (26) movable in translation. Boîte (1) selon la revendication 6, caractérisée en ce que ladite tige (26) comprend deux parties (44, 46) dont une première (44) présente une extrémité libre située du côté de l'extérieur de la boîte et la seconde (46) présente une extrémité libre située à l'intérieur de la boîte et définissant une butée pour retenir ladite tige (26) à l'intérieur dudit tube (24), un ressort (52) étant agencé dans ledit tube (24) de manière à agir sur ladite tige (26) et la repousser en direction de l'extérieur de la boîte.Box (1) according to claim 6, characterized in that said rod (26) comprises two parts (44, 46), a first (44) has a free end located on the outside of the box and the second ( 46) has a free end located inside the box and defining an abutment for retaining said rod (26) within said tube (24), a spring (52) being arranged in said tube (24) so as to acting on said rod (26) and pushing it towards the outside of the box. Boîte (1) selon l'une quelconque des revendications 6 ou 7, caractérisée en ce que ledit tube (24) présente un filetage coopérant avec un taraudage ménagé dans ladite ouverture (20) par vissage.Box (1) according to any one of claims 6 or 7, characterized in that said tube (24) has a thread cooperating with a thread formed in said opening (20) by screwing. Boîte (1) selon l'une quelconque des revendications 6 à 8, caractérisée en ce qu'au moins une garniture d'étanchéité (48) est agencée entre une paroi interne dudit tube (24) et ladite tige (26).Box (1) according to any one of claims 6 to 8, characterized in that at least one seal (48) is arranged between an inner wall of said tube (24) and said rod (26). Pièce d'horlogerie comportant une boîte (1) selon l'une quelconque des revendications précédentes.Timepiece comprising a box (1) according to any one of the preceding claims.
EP12159349.5A 2012-03-13 2012-03-13 Control device for a diving watch Active EP2639656B1 (en)

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Cited By (1)

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Publication number Priority date Publication date Assignee Title
EP3537231B1 (en) * 2018-03-06 2021-04-07 Patek Philippe SA Genève Watch comprising correctors accessible on an attachment link of the strap

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EP1818734A1 (en) * 2006-02-08 2007-08-15 Montres Journe S.A. Push-button device for controlling a function from the outside of a watch case
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CH423638A (en) 1964-06-11 1966-07-15 Rolex Montres Waterproof control device, push button, for timepiece
EP0869412A2 (en) * 1997-04-04 1998-10-07 Kelek S.A. Watch with water-resistant slide
EP1818734A1 (en) * 2006-02-08 2007-08-15 Montres Journe S.A. Push-button device for controlling a function from the outside of a watch case
CH698943B1 (en) * 2006-09-01 2009-12-15 Richemont Int Sa Push button device for watch, particularly for wrist watch, has push button head fitted outside on watch case, which has actuator slidable in direction of watch case interior
CH702803A2 (en) * 2010-03-09 2011-09-15 Demonaco Sam Atel Displayed information e.g. date information, correcting mechanism for watch movement, has push button pivoting base of control lever in response to predefined action of user such that arm actuates one of correction levers

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Publication number Priority date Publication date Assignee Title
EP3537231B1 (en) * 2018-03-06 2021-04-07 Patek Philippe SA Genève Watch comprising correctors accessible on an attachment link of the strap

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