EP3407144B1 - Timepiece comprising a device for locking a pusher - Google Patents

Timepiece comprising a device for locking a pusher Download PDF

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Publication number
EP3407144B1
EP3407144B1 EP18172258.8A EP18172258A EP3407144B1 EP 3407144 B1 EP3407144 B1 EP 3407144B1 EP 18172258 A EP18172258 A EP 18172258A EP 3407144 B1 EP3407144 B1 EP 3407144B1
Authority
EP
European Patent Office
Prior art keywords
pusher
locking
timepiece according
cam
blocking means
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.)
Active
Application number
EP18172258.8A
Other languages
German (de)
French (fr)
Other versions
EP3407144A2 (en
EP3407144A3 (en
Inventor
Philippe Loetscher
Gregory Kissling
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.)
Omega SA
Original Assignee
Omega 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 Omega SA filed Critical Omega SA
Publication of EP3407144A2 publication Critical patent/EP3407144A2/en
Publication of EP3407144A3 publication Critical patent/EP3407144A3/en
Application granted granted Critical
Publication of EP3407144B1 publication Critical patent/EP3407144B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • G—PHYSICS
    • G04—HOROLOGY
    • G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
    • G04B37/00—Cases
    • G04B37/0091—Cases for clock parts, e.g. for the escapement or the electric motor
    • 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
    • G04B3/00—Normal winding of clockworks by hand or mechanically; Winding up several mainsprings or driving weights simultaneously
    • G04B3/04—Rigidly-mounted keys, knobs or crowns
    • G04B3/043—Locking of the operating element, also by mounting in a concealed place
    • 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
    • G04B19/06—Dials
    • G04B19/18—Graduations on the crystal or glass, on the bezel, or on the rim
    • 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
    • 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
    • G04B3/00—Normal winding of clockworks by hand or mechanically; Winding up several mainsprings or driving weights simultaneously
    • G04B3/001—Normal winding of clockworks by hand or mechanically; Winding up several mainsprings or driving weights simultaneously by push button
    • 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
    • G04B3/00—Normal winding of clockworks by hand or mechanically; Winding up several mainsprings or driving weights simultaneously
    • G04B3/04—Rigidly-mounted keys, knobs or crowns
    • G04B3/045—Storing the operating element, also bringing it out of storage
    • 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
    • G04B3/00—Normal winding of clockworks by hand or mechanically; Winding up several mainsprings or driving weights simultaneously
    • G04B3/04—Rigidly-mounted keys, knobs or crowns
    • G04B3/046—Operation by rotation and axial movement with extra function of axial shift of operating element, e.g. crown combined with push button
    • 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
    • G04B3/00—Normal winding of clockworks by hand or mechanically; Winding up several mainsprings or driving weights simultaneously
    • G04B3/04—Rigidly-mounted keys, knobs or crowns
    • G04B3/048—Operation exclusively by axial movement of a push-button, e.g. for chronographs
    • G—PHYSICS
    • G04—HOROLOGY
    • G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
    • G04B37/00—Cases
    • G04B37/0008—Cases for pocket watches and wrist watches
    • G—PHYSICS
    • G04—HOROLOGY
    • G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
    • G04B37/00—Cases
    • G04B37/08—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
    • 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
    • G—PHYSICS
    • G04—HOROLOGY
    • G04F—TIME-INTERVAL MEASURING
    • G04F7/00—Apparatus for measuring unknown time intervals by non-electric means
    • G04F7/04—Apparatus for measuring unknown time intervals by non-electric means using a mechanical oscillator
    • G04F7/08—Watches or clocks with stop devices, e.g. chronograph
    • G04F7/0866—Special arrangements

Definitions

  • the present invention relates to the field of watchmaking. It relates more particularly to a timepiece comprising a locking device for a push-button which can be actuated by a user of the timepiece, in particular a push-button.
  • timepieces comprising a locking device which makes it possible to make a push-button inactive.
  • the purpose of these devices is to prevent accidental actuation of the push-button or, for diving watches, to prevent actuation of the push-button under the effect of external pressure.
  • the request CH678138 offers a screwed plunger which can be immobilized by a threaded ring, coaxial with the plunger.
  • the threaded ring is aimed at the pendant of the pusher and can come to bear under the head of the pusher to prevent it from being actuated.
  • Requirement US9105413 describes a variant of this device.
  • Requirement CH707595 presents a watch pusher lockable by means of a rotary ring coaxial with the pusher and the rotation of which causes the axial displacement of a sleeve capable of resting under the head of the pusher.
  • Push-button locking devices are also known which partly provide a solution to the aforementioned problem.
  • the document US 2010/014233 proposes to block the actuation of a pusher by a vertically movable frame, perpendicular to the actuating axis of the pusher.
  • This frame defines an upper stop for the pusher, which is placed behind the head of the pusher according to the position of a rotating bezel which serves as a control member of the locking device.
  • the frame and therefore the stopper are arranged under the rotating bezel so that they can be actuated directly by a surface. lower part of this rotating bezel.
  • This embodiment has a first drawback in that the rear part of the head of the pusher must be inserted into the watch case when the pusher is in its rest position (pusher not actuated).
  • a second drawback comes from the fact that the pusher is locked by a small stop acting only against the upper part of the head of the pusher.
  • a third drawback arises from the fact that the locking device is bulky, in particular the frame which moves vertically in the middle part, which must have a recess for this purpose. In addition, the vertical movement of the frame requires a relatively tall case to allow this movement inside this case.
  • the document CH 700 535 discloses a watch comprising a pusher which can be locked in order to prevent it from being actuated.
  • the watch comprises a rotating bezel which has, in an angular sector, a lower projecting part capable of taking place behind the head of the pusher when the bezel is rotated in an angular locking position.
  • To unlock the pusher it is then necessary to turn the bezel through a certain angle so as to remove the lower protrusion from behind the pusher to release the latter.
  • a rotating bezel and in addition a particular configuration of this bezel and of the middle part in order to have a circular internal groove in which the lower protruding part can circulate.
  • the document CH 504 044 discloses a diving watch having two push buttons and a device for preventing the two push buttons from being activated simultaneously.
  • the device is arranged so that pressure applied simultaneously to the two push-buttons, in particular during a dive, does not actuate either of the two push-buttons.
  • the object of the present invention is to remedy the various drawbacks of the prior art by proposing a timepiece provided with a locking device for at least one pusher which is less bulky, more discreet and simpler to use.
  • the present invention relates to a timepiece comprising a case, a pusher mounted in a middle part of the case and a locking device capable of locking the pusher, this pusher being arranged so as to be able to undergo a translation along an axis. actuation of the push-button by a user.
  • the locking device comprises a locking member and a control member arranged to control the movement of the locking member between a locking position and an unlocking position in which the pusher is respectively locked and free in translation.
  • the control member extends in a general plane parallel to said actuating axis and is arranged movable in this general plane between a first position and a corresponding second position, for the blocking member driven by the control member, respectively to the locked and unlocked positions.
  • the blocking member is arranged movable in translation along the actuation axis and capable of being moved by the control member along this actuation axis between the position locking, where it forms an axial stop for the pusher, and the unlocking position set back from the locking position.
  • the control member comprises means for driving the blocking member along the actuating axis.
  • the timepiece comprises a bezel and the control member is formed by an intermediate ring mounted between the middle part and the bezel, this ring being movable in rotation about an axis substantially perpendicular to the bezel. 'actuation axis.
  • the timepiece comprises a rotating bezel forming the control member.
  • the locking member is a cylindrical sleeve surrounding the pusher and arranged to be movable along the actuation axis of the pusher.
  • the locking member is a slide arranged movable along the actuating axis of the pusher.
  • the pusher comprises a head and the locking member is able to come into position, in order to lock it, at a short distance from this head or resting against it.
  • control member has a radial positioning cam of the locking member cooperating with a follower means that this locking member comprises.
  • the timepiece comprises an elastic return means tending to keep the follower means in contact with the cam.
  • the cam is formed by a groove and the follower means is a lug inserted in this groove.
  • the cam is formed by a rib / a rail projecting under the control member and the follower means is a notch machined in the locking member.
  • the locking device comprises a visual means facilitating the recognition of the position of the locking member.
  • the locking device comprises a positioning means provided to hold the control member in place in its first and second positions which thus define two stable positions.
  • each of the first and second positions of the control member is provided by a hard point, for example formed of a ball mounted on an elastic element.
  • the figures represent partial sectional views of a timepiece showing a push-button arranged in the middle part 2 of the case 1 and its locking device.
  • the push-button notably forms a control member of a chronograph mechanism.
  • This push-button is composed of a pendant 3, screwed into a thread that comprises the middle part 2, and of a push-button 4 extending partially outside the timepiece in order to be actuated by a user.
  • the pusher 4 comprises a head 5 and a rod 6 capable of sliding in an opening that the pendant 3 has along an actuation axis 20 passing through the middle part parallel to the general plane of the case.
  • a first spring 7 tends to maintain the pusher 4 in a distal position with reference to the middle part 2 (as shown in all of the figures).
  • the timepiece comprises a locking device comprising a locking member 8 movable in translation along the actuation axis 20.
  • the locking member 8 is formed by a cylindrical sleeve 8a surrounding the pusher 4, this sleeve having an internal shoulder defining a stop 12 for the head 5 of the pusher at least when the locking device is in its locking position.
  • the locking device also comprises a control member 10 mounted movable in rotation with reference to the middle part 2, around an axis perpendicular to the general plane of the housing 1, and therefore perpendicular to the actuating axis 20.
  • the organ control extends in the general plane of the housing which is substantially parallel to the actuation axis and it is arranged movable in this general plane between a first position and a second position corresponding respectively to the locking and unlocking positions of the device lock.
  • the control member 10 extends at least partially outside the housing so as to be easily actuated by a user.
  • the control member is a rotating ring 10 mounted between the middle part 2 and a bezel 11 included in the case 1.
  • the locking member 8 is capable of being moved between a locking position shown in figures 1 and 2 and an unlocking position shown in figures 3 and 4 .
  • a stop 12 of the locking member 8 is placed directly under the head 5 of the pusher 4 in order to substantially block the pusher 4 in translation and thus prevent its actuation to perform the function associated with this. pusher.
  • the locking member In the unlocked position, the locking member has been translated along the actuating axis so as to release the push-button 4 in translation and to make it operational.
  • control member 10 which is kinematically linked to the locking member 8.
  • the control member 10 comprises drive means cooperating with a follower means that comprises the locking member 8.
  • the drive means are formed by a cam 13a and an elastic return means 15 while the follower means is formed by a lug 14a coming into contact with the cam 13a and acting as a cam follower.
  • the elastic return means 15 (in particular a helical spring) keeps the lug 14a in contact with the cam 13a in both directions of actuation of the control member.
  • the cam 13a is defined by a lateral surface of an internal recess of the rotating ring 10, the profile of which has a monotonic radial variation between two angular positions respectively defining a first position and a second position corresponding to the locking positions. and unlocking.
  • the locking device preferably comprises a positioning means arranged to hold the control member in place in the first and second aforementioned positions.
  • the control member can be mounted to pivot with heavy friction, which may be sufficient to ensure that it is held in said first and second positions.
  • the positioning means shown in the figures is firstly formed by the slope of the cam 13a which is substantially zero at its two ends 13c which respectively define said first and second positions. The slope of the cam is considered in a circular frame of reference, so that a zero slope corresponds to a circular path.
  • the positioning can also be achieved or reinforced by the fact that the lug 14a is held radially in its two extreme radial positions, corresponding to the first and second positions, on the one hand by an internal tongue 16 formed in the rotating ring 10 and d 'on the other hand by a bearing surface defined by the caseband 2.
  • the slope of the cam in the central zone causes a relatively rapid displacement of the locking member in response to a small angular displacement of the control member, then that the substantially zero slope at the ends 13c of the cam prevents the transmission of a torque from the follower element to the control member.
  • a rotation of about thirty degrees of the rotating ring allows the locking member to be moved in both directions between its locking and unlocking positions.
  • the positioning means of the control member prefferably include hard points which must be overcome just before reaching said first and second positions and therefore either the locking position or the unlocking position. This makes it possible to further secure the two functional positions of the control member. Passing a hard point further provides a tactile indication of locking or unlocking to the user.
  • the locking member is a slide 8b capable of sliding in the direction of the actuating axis of the pusher in a radial slide 9 which the middle part comprises.
  • the slide 9 may have a dovetail shape or any other suitable profile.
  • control member 10 is directly formed by a rotating bezel 11 which the housing comprises or supports.
  • the cam is formed by a groove 13b at least partially accommodating the lug 14a and having substantially the width of the diameter of this lug.
  • This configuration corresponds to a desmodromic control for which the elastic return means of the drive means of the locking member can be eliminated in order to limit the size of the locking device. It may however be interesting to keep a low elastic return means in this case to take up the play between the parts and eliminate small parasitic translations of the locking member.
  • the cam can just as easily be a prominent rib and the follower means a notch machined in the locking member and receiving the rib, the sliding of the rib in the notch. causing the radial displacement of the locking member.
  • the locking device may also include visual means facilitating recognition of the position of the locking member.
  • This visual means typically a marking, can be located on the control member or directly on the locking member.
  • the locking member is concealed in the unlocked position while it is visible in the locked position.
  • the visibility of the locking member which can be enhanced by a conspicuous color, is in this case the visual means which makes it possible to know its position.
  • control member 10 comprises several grooves 13b, respectively several cams 13a in order to simultaneously lock several pushers.
  • the various solutions proposed make it possible to produce locking devices for one or more push-buttons which are easier and faster to use by locking with a single gesture.
  • the fact that the locking member can be fully retracted into the middle part makes the locking device discreet.
  • the actuation of a conventional pusher is not made less easy by the presence of the locking device when the latter is placed in the unlocking position.
  • the fact of moving the control member at the level of the bezel makes it possible to practically not increase the size of the pushers with the arrangement of the locking device according to the invention, which makes it possible to keep a classic appearance to the watch case which may appear on the outside almost identical to a corresponding case without such a locking device.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electric Clocks (AREA)
  • Lock And Its Accessories (AREA)

Description

DOMAINE TECHNIQUETECHNICAL AREA

La présente invention se rapporte au domaine de l'horlogerie. Elle concerne plus particulièrement une pièce d'horlogerie comportant un dispositif de verrouillage pour un poussoir actionnable par un utilisateur de la pièce d'horlogerie, notamment un bouton-poussoir.The present invention relates to the field of watchmaking. It relates more particularly to a timepiece comprising a locking device for a push-button which can be actuated by a user of the timepiece, in particular a push-button.

ART ANTERIEURPRIOR ART

Il est connu de réaliser des pièces d'horlogerie comportant un dispositif de verrouillage qui permet de rendre inactif un bouton-poussoir. Ces dispositifs ont pour but d'empêcher l'actionnement accidentel du bouton-poussoir ou, pour les montres de plongée, d'éviter l'actionnement du bouton-poussoir sous l'effet de la pression extérieure.It is known to produce timepieces comprising a locking device which makes it possible to make a push-button inactive. The purpose of these devices is to prevent accidental actuation of the push-button or, for diving watches, to prevent actuation of the push-button under the effect of external pressure.

On connait de nombreuses demandes décrivant un tel dispositif de verrouillage. Par exemple, la demande CH678138 propose un poussoir vissé qui peut être immobilisé par une bague filetée, coaxiale au poussoir. La bague filetée est visée sur le pendant du poussoir et peut venir en appui sous la tête du poussoir pour empêcher son actionnement. La demande US9105413 décrit une variante de ce dispositif.Many applications are known describing such a locking device. For example, the request CH678138 offers a screwed plunger which can be immobilized by a threaded ring, coaxial with the plunger. The threaded ring is aimed at the pendant of the pusher and can come to bear under the head of the pusher to prevent it from being actuated. Requirement US9105413 describes a variant of this device.

La demande CH707595 présente un poussoir de montre blocable à l'aide d'une bague rotative coaxiale avec le poussoir et dont la rotation provoque le déplacement axial d'une douille susceptible de venir en appui sous la tête du poussoir.Requirement CH707595 presents a watch pusher lockable by means of a rotary ring coaxial with the pusher and the rotation of which causes the axial displacement of a sleeve capable of resting under the head of the pusher.

Cependant ces dispositifs de verrouillage présentent plusieurs inconvénients. Comme le poussoir est entouré par une bague de commande coaxiale qui doit pouvoir être tournée par un utilisateur et donc sortir suffisamment radialement au-delà de la surface périphérique de la carrure du boîtier de montre, ce poussoir doit être proéminent tout en ayant une faible course, ce qui rend son actionnement plus difficile et moins précis. Pour que la course du poussoir soit allongée de manière à présenter une longueur usuelle, la tige du poussoir doit être allongée de sorte que la tête du poussoir est alors relativement éloignée de la carrure, ce qui change désavantageusement l'esthétique de la montre. En effet, la bague de commande doit présenter une certaine hauteur hors de la carrure et un certain diamètre, normalement supérieur à celui de la tête du poussoir, pour être manipulée aisément. Il en résulte que les boutons-poussoirs munis d'un tel dispositif de verrouillage présentent un aspect massif. Par ailleurs, le pas de vis utilisé pour transformer le mouvement de rotation en translation doit être suffisamment petit afin que la transformation ne soit pas réversible de manière accidentelle, c'est-à-dire que les frottements soient suffisants pour s'opposer à un dévissage intempestif. Ainsi, un temps de manipulation important, dû au grand nombre de rotations de la bague de commande, est nécessaire pour commuter le dispositif entre ses états verrouillé et déverrouillé. Pour les montres comportant plusieurs poussoirs comme c'est généralement le cas pour celles munies d'un chronographe, l'opération de verrouillage peut ainsi s'avérer particulièrement fastidieuse car elle doit être effectuée successivement pour chacun des poussoirs.However, these locking devices have several drawbacks. As the pusher is surrounded by a ring of coaxial control which must be able to be rotated by a user and therefore come out sufficiently radially beyond the peripheral surface of the middle part of the watch case, this pusher must be prominent while having a short stroke, which makes its actuation more difficult and less precise. In order for the stroke of the pusher to be lengthened so as to have a usual length, the rod of the pusher must be lengthened so that the head of the pusher is then relatively far from the middle part, which disadvantageously changes the appearance of the watch. Indeed, the control ring must have a certain height outside the middle part and a certain diameter, normally greater than that of the head of the pusher, in order to be easily handled. It follows that the push buttons provided with such a locking device have a massive appearance. Furthermore, the screw pitch used to transform the rotational movement into translation must be small enough so that the transformation is not accidentally reversible, that is to say that the friction is sufficient to oppose a untimely unscrewing. Thus, a significant handling time, due to the large number of rotations of the control ring, is necessary to switch the device between its locked and unlocked states. For watches comprising several push-buttons, as is generally the case for those fitted with a chronograph, the locking operation can thus prove to be particularly tedious since it must be carried out successively for each of the push-buttons.

On connaît aussi des dispositifs de verrouillage de poussoir qui apportent en partie une solution au problème susmentionné. Ainsi, le document US 2010/014233 propose de bloquer l'actionnement d'un poussoir par un cadre mobile verticalement, de manière perpendiculaire à l'axe d'actionnement du poussoir. Ce cadre définit une butée supérieure pour le poussoir, laquelle vient se placer derrière la tête du poussoir selon la position d'une lunette tournante qui sert d'organe de commande du dispositif de verrouillage. Le cadre et donc la butée sont agencés sous la lunette tournante pour pouvoir être actionnés directement par une surface inférieure de cette lunette tournante. Cette réalisation présente un premier inconvénient par le fait que la partie arrière de la tête du poussoir doit être insérée dans le boîtier de la montre lorsque le poussoir est dans sa position de repos (poussoir non actionné). Un deuxième inconvénient vient du fait que le poussoir est verrouillé par une petite butée agissant seulement contre la partie supérieure de la tête du poussoir. Un troisième inconvénient découle du fait que le dispositif de verrouillage est encombrant, notamment le cadre qui se meut verticalement dans la carrure, laquelle doit présenter un évidemment à cet effet. De plus, le mouvement vertical du cadre requière un boîtier relativement haut pour permettre ce mouvement à l'intérieur de ce boîtier.Push-button locking devices are also known which partly provide a solution to the aforementioned problem. Thus, the document US 2010/014233 proposes to block the actuation of a pusher by a vertically movable frame, perpendicular to the actuating axis of the pusher. This frame defines an upper stop for the pusher, which is placed behind the head of the pusher according to the position of a rotating bezel which serves as a control member of the locking device. The frame and therefore the stopper are arranged under the rotating bezel so that they can be actuated directly by a surface. lower part of this rotating bezel. This embodiment has a first drawback in that the rear part of the head of the pusher must be inserted into the watch case when the pusher is in its rest position (pusher not actuated). A second drawback comes from the fact that the pusher is locked by a small stop acting only against the upper part of the head of the pusher. A third drawback arises from the fact that the locking device is bulky, in particular the frame which moves vertically in the middle part, which must have a recess for this purpose. In addition, the vertical movement of the frame requires a relatively tall case to allow this movement inside this case.

Le document CH 700 535 divulgue une montre comprenant un poussoir pouvant être bloqué afin d'empêcher qu'il soit actionné. A cet effet, la montre comprend une lunette tournante qui présente dans un secteur angulaire une partie saillante inférieure susceptible de prendre place derrière la tête du poussoir lorsque la lunette est tournée dans une position angulaire de blocage. Pour débloquer le poussoir, il est alors nécessaire de tourner la lunette d'un certain angle de manière à retirer la partie saillante inférieure de derrière le poussoir pour libérer ce dernier. On comprend qu'une telle solution demande une lunette tournante et en plus une configuration particulière de cette lunette et de la carrure pour avoir une rainure interne circulaire dans laquelle puisse circuler la partie saillante inférieure.The document CH 700 535 discloses a watch comprising a pusher which can be locked in order to prevent it from being actuated. To this end, the watch comprises a rotating bezel which has, in an angular sector, a lower projecting part capable of taking place behind the head of the pusher when the bezel is rotated in an angular locking position. To unlock the pusher, it is then necessary to turn the bezel through a certain angle so as to remove the lower protrusion from behind the pusher to release the latter. It will be understood that such a solution requires a rotating bezel and in addition a particular configuration of this bezel and of the middle part in order to have a circular internal groove in which the lower protruding part can circulate.

Le document CH 504 044 divulgue une montre de plongée ayant deux poussoirs et un dispositif pour empêcher que les deux poussoirs puissent être activés simultanément. De plus, le dispositif est agencé de manière qu'une pression appliquée simultanément sur les deux poussoirs, notamment lors d'une plongée, n'actionne aucun des deux poussoirs.The document CH 504 044 discloses a diving watch having two push buttons and a device for preventing the two push buttons from being activated simultaneously. In addition, the device is arranged so that pressure applied simultaneously to the two push-buttons, in particular during a dive, does not actuate either of the two push-buttons.

On connaît également du document EP 1 582 945 , figures 7,8 et 11, un dispositif de verrouillage d'un poussoir dans lequel un tube et un piston traversant ce tube sont solidaires de la tête du poussoir, le tube étant fixé à cette tête et le piston étant agencé mobile dans le tube entre deux positions verticales, c'est-à-dire entre deux positions selon un axe perpendiculaire à l'axe d'actionnement du poussoir. Une lunette tournante présente une rainure dans sa surface inférieure, une extrémité du piston étant logée dans cette rainure. Cette rainure présente une portion (45) avec une profondeur qui varie de manière à permettre un actionnement du piston dans le tube entre deux positions extrêmes qui définissent respectivement une position de verrouillage et une position de déverrouillage du poussoir. Cette réalisation avec de petites pièces difficiles à assembler est complexe. Comme le tube et le piston sont solidaires du poussoir en déplacement selon l'axe d'actionnement, il est nécessaire de prévoir un évidement radial dans la lunette et dans le haut de la carrure relativement important, de sorte que le piston et son tube puissent être déplacés radialement avec le poussoir dans la position de déverrouillage. Le système est donc encombrant. Ceci est encore péjoré par le fait que le piston présente un mouvement vertical pour verrouiller le poussoir, ce qui requière une relativement grande hauteur du boîtier au-dessus du poussoir. De plus, l'incorporation du poussoir avec le piston dans la boîte est difficile. En effet, la lunette tournante et la lunette fixe doivent être montées après avoir apporté le poussoir muni de son dispositif de verrouillage, en veillant à maintenir le piston dans l'orientation verticale prévue. En particulier, le poussoir lui-même doit être assemblé avant ou simultanément aux deux lunettes susmentionnées et il n'est pas possible de le changer par la suite sans les démonter premièrement. En conclusion, on constate que cette réalisation de l'art antérieur présente plusieurs inconvénients.We also know from the document EP 1,582,945 , figures 7.8 and 11, a device for locking a pusher in which a tube and a piston passing through this tube are integral with the head of the pusher, the tube being fixed to this head and the piston being arranged movable in the tube between two vertical positions, that is to say between two positions along an axis perpendicular to the axis actuation of the pusher. A rotating bezel has a groove in its lower surface, one end of the piston being housed in this groove. This groove has a portion (45) with a depth which varies so as to allow actuation of the piston in the tube between two extreme positions which respectively define a locking position and an unlocking position of the pusher. This realization with small parts difficult to assemble is complex. As the tube and the piston are integral with the pusher moving along the actuating axis, it is necessary to provide a radial recess in the bezel and in the top of the middle part relatively large, so that the piston and its tube can be moved radially with the pusher in the unlocked position. The system is therefore bulky. This is further affected by the fact that the piston has a vertical movement to lock the pusher, which requires a relatively large height of the housing above the pusher. Furthermore, the incorporation of the pusher with the piston in the box is difficult. Indeed, the rotating bezel and the fixed bezel must be mounted after bringing the pusher fitted with its locking device, taking care to keep the piston in the vertical orientation provided. In particular, the pusher itself must be assembled before or simultaneously with the two aforementioned bezels and it is not possible to change it afterwards without dismantling them first. In conclusion, it is noted that this embodiment of the prior art has several drawbacks.

RESUME DE L'INVENTIONSUMMARY OF THE INVENTION

La présente invention a pour but de remédier aux différents inconvénients de l'art antérieur en proposant une pièce d'horlogerie munie d'un dispositif de verrouillage d'au moins un poussoir qui soit moins encombrant, plus discret et plus simple à utiliser.The object of the present invention is to remedy the various drawbacks of the prior art by proposing a timepiece provided with a locking device for at least one pusher which is less bulky, more discreet and simpler to use.

A cet effet, la présente invention concerne une pièce d'horlogerie comportant un boîtier, un poussoir monté dans une carrure du boîtier et un dispositif de verrouillage apte à verrouiller le poussoir, ce poussoir étant agencé de manière à pouvoir subir une translation selon un axe d'actionnement du poussoir par un utilisateur. Le dispositif de verrouillage comporte un organe de blocage et un organe de commande agencé pour commander le déplacement de l'organe de blocage entre une position de verrouillage et une position de déverrouillage dans lesquelles le poussoir est respectivement bloqué et libre en translation. L'organe de commande s'étend dans un plan général parallèle audit axe d'actionnement et est agencé mobile dans ce plan général entre une première position et une deuxième position correspondant, pour l'organe de blocage entraîné par l'organe de commande, respectivement aux positions de verrouillage et de déverrouillage. Selon l'invention, l'organe de blocage est agencé mobile en translation selon l'axe d'actionnement et susceptible d'être déplacé par l'organe de commande le long de cet axe d'actionnement entre la position de verrouillage, où il forme une butée axiale pour le poussoir, et la position de déverrouillage située en retrait de la position de verrouillage. L'organe de commande comporte pour ce faire des moyens d'entrainement de l'organe de blocage selon l'axe d'actionnement.To this end, the present invention relates to a timepiece comprising a case, a pusher mounted in a middle part of the case and a locking device capable of locking the pusher, this pusher being arranged so as to be able to undergo a translation along an axis. actuation of the push-button by a user. The locking device comprises a locking member and a control member arranged to control the movement of the locking member between a locking position and an unlocking position in which the pusher is respectively locked and free in translation. The control member extends in a general plane parallel to said actuating axis and is arranged movable in this general plane between a first position and a corresponding second position, for the blocking member driven by the control member, respectively to the locked and unlocked positions. According to the invention, the blocking member is arranged movable in translation along the actuation axis and capable of being moved by the control member along this actuation axis between the position locking, where it forms an axial stop for the pusher, and the unlocking position set back from the locking position. To do this, the control member comprises means for driving the blocking member along the actuating axis.

Selon un mode de réalisation avantageux, la pièce d'horlogerie comporte une lunette et l'organe de commande est formé par une bague intermédiaire montée entre la carrure et la lunette, cette bague étant mobile en rotation autour d'un axe sensiblement perpendiculaire à l'axe d'actionnement.According to an advantageous embodiment, the timepiece comprises a bezel and the control member is formed by an intermediate ring mounted between the middle part and the bezel, this ring being movable in rotation about an axis substantially perpendicular to the bezel. 'actuation axis.

Selon un autre mode de réalisation avantageux, la pièce d'horlogerie comporte une lunette tournante formant l'organe de commande.According to another advantageous embodiment, the timepiece comprises a rotating bezel forming the control member.

Selon un mode de réalisation préféré, l'organe de blocage est une douille cylindrique entourant le poussoir et agencée mobile selon l'axe d'actionnement du poussoir.According to a preferred embodiment, the locking member is a cylindrical sleeve surrounding the pusher and arranged to be movable along the actuation axis of the pusher.

Selon un mode de réalisation particulier, l'organe de blocage est un coulisseau agencé mobile selon l'axe d'actionnement du poussoir.According to a particular embodiment, the locking member is a slide arranged movable along the actuating axis of the pusher.

Selon un autre mode de réalisation avantageux, le poussoir comporte une tête et l'organe de blocage est apte à venir se positionner, pour le verrouiller, à faible distance de cette tête ou en appui contre celle-ci.According to another advantageous embodiment, the pusher comprises a head and the locking member is able to come into position, in order to lock it, at a short distance from this head or resting against it.

Selon un autre mode de réalisation avantageux, l'organe de commande présente une came de positionnement radial de l'organe de blocage coopérant avec un moyen suiveur que comporte cet organe de blocage.According to another advantageous embodiment, the control member has a radial positioning cam of the locking member cooperating with a follower means that this locking member comprises.

Selon une variante avantageuse, la pièce d'horlogerie comporte un moyen de rappel élastique tendant à maintenir le moyen suiveur au contact de la came.According to an advantageous variant, the timepiece comprises an elastic return means tending to keep the follower means in contact with the cam.

Selon une autre variante avantageuse, la came est formée par une rainure et le moyen suiveur est un ergot inséré dans cette rainure.According to another advantageous variant, the cam is formed by a groove and the follower means is a lug inserted in this groove.

Selon une variante particulière, la came est formée par une nervure / un rail faisant saillie sous l'organe de commande et le moyen suiveur est une encoche usinée dans l'organe de blocage.According to a particular variant, the cam is formed by a rib / a rail projecting under the control member and the follower means is a notch machined in the locking member.

Selon une autre variante avantageuse, le dispositif de verrouillage comporte un moyen visuel facilitant la reconnaissance de la position de l'organe de blocage.According to another advantageous variant, the locking device comprises a visual means facilitating the recognition of the position of the locking member.

Selon une autre variante avantageuse, le dispositif de verrouillage comporte un moyen de positionnement prévu pour maintenir en place l'organe de commande dans ses première et deuxième positions qui définissent ainsi deux positions stables.According to another advantageous variant, the locking device comprises a positioning means provided to hold the control member in place in its first and second positions which thus define two stable positions.

Selon une variante particulière, chacune des première et deuxième positions de l'organe de commande est assurée par un point dur, par exemple formé d'une bille montée sur un élément élastique.According to a particular variant, each of the first and second positions of the control member is provided by a hard point, for example formed of a ball mounted on an elastic element.

BREVE DESCRIPTION DES FIGURESBRIEF DESCRIPTION OF THE FIGURES

D'autres détails de l'invention apparaîtront à la lecture de la description qui suit, faite en référence aux dessins annexés dans lesquels :

  • les figures 1 et 2 représentent une vue en coupe transversale et une vue en coupe selon la ligne A - A d'un premier mode de réalisation d'une pièce d'horlogerie selon l'invention, dans laquelle le dispositif de verrouillage est dans sa position de verrouillage ;
  • les figures 3 et 4 sont des vues en coupe, similaires à celles des figures 1 et 2, dans lesquelles le dispositif de verrouillage est dans sa position de déverrouillage ;
  • les figures 5 à 9 représentent diverses coupes d'un deuxième mode de réalisation d'une pièce d'horlogerie selon l'invention, les figures 5 et 7 montrant le dispositif de verrouillage en position de verrouillage alors que les figures 6 et 9 le montrent en position de déverrouillage et la figure 8 en position intermédiaire.
Other details of the invention will become apparent on reading the following description, made with reference to the appended drawings in which:
  • the figures 1 and 2 show a cross-sectional view and a cross-sectional view along line A - A of a first embodiment of a timepiece according to the invention, in which the locking device is in its locking position;
  • the figures 3 and 4 are sectional views, similar to those of figures 1 and 2 , in which the locking device is in its unlocked position;
  • the figures 5 to 9 show various sections of a second embodiment of a timepiece according to the invention, the figures 5 and 7 showing the locking device in locked position while the figures 6 and 9 show it in the unlocked position and the figure 8 in the middle position.

DESCRIPTION DETAILLEEDETAILED DESCRIPTION

En référence aux figures 1 à 4, on décrira ci-après un premier mode de réalisation de l'invention. Les figures représentent des vues partielles en coupe d'une pièce d'horlogerie laissant apparaître un bouton-poussoir agencé dans la carrure 2 du boîtier 1 et son dispositif de verrouillage. Le bouton-poussoir forme notamment un organe de commande d'un mécanisme chronographe. Ce bouton-poussoir est composé d'un pendant 3, vissé dans un taraudage que comporte la carrure 2, et d'un poussoir 4 s'étendant partiellement à l'extérieur de la pièce d'horlogerie afin d'être actionnable par un utilisateur. Le poussoir 4 comporte une tête 5 et une tige 6 apte à coulisser dans une ouverture que comporte le pendant 3 selon un axe d'actionnement 20 traversant la carrure parallèlement au plan général du boîtier. Un premier ressort 7 tend à maintenir le poussoir 4 en position distale en référence à la carrure 2 (comme représenté sur l'ensemble des figures).With reference to figures 1 to 4 , a first embodiment of the invention will be described below. The figures represent partial sectional views of a timepiece showing a push-button arranged in the middle part 2 of the case 1 and its locking device. The push-button notably forms a control member of a chronograph mechanism. This push-button is composed of a pendant 3, screwed into a thread that comprises the middle part 2, and of a push-button 4 extending partially outside the timepiece in order to be actuated by a user. . The pusher 4 comprises a head 5 and a rod 6 capable of sliding in an opening that the pendant 3 has along an actuation axis 20 passing through the middle part parallel to the general plane of the case. A first spring 7 tends to maintain the pusher 4 in a distal position with reference to the middle part 2 (as shown in all of the figures).

La pièce d'horlogerie comporte un dispositif de verrouillage comprenant un organe de blocage 8 mobile en translation selon l'axe d'actionnement 20. Dans un premier mode de réalisation présenté aux figures 1 à 4, l'organe de blocage 8 est formé par une douille cylindrique 8a entourant le poussoir 4, cette douille ayant un épaulement intérieur définissant une butée 12 pour la tête 5 du poussoir au moins lorsque le dispositif de verrouillage est dans sa position de verrouillage.The timepiece comprises a locking device comprising a locking member 8 movable in translation along the actuation axis 20. In a first embodiment presented to figures 1 to 4 , the locking member 8 is formed by a cylindrical sleeve 8a surrounding the pusher 4, this sleeve having an internal shoulder defining a stop 12 for the head 5 of the pusher at least when the locking device is in its locking position.

Le dispositif de verrouillage comporte également un organe de commande 10 monté mobile en rotation en référence à la carrure 2, autour d'un axe perpendiculaire au plan général du boîtier 1, et donc perpendiculaire à l'axe d'actionnement 20. De manière générale, l'organe de commande s'étend dans le plan général du boîtier qui est sensiblement parallèle à l'axe d'actionnement et il est agencé mobile dans ce plan général entre une première position et une deuxième position correspondant respectivement aux positions de verrouillage et de déverrouillage du dispositif de verrouillage. De préférence, l'organe de commande 10 s'étend au moins partiellement à l'extérieur du boîtier de manière à être facilement actionnable par un utilisateur. Dans le premier mode de réalisation présenté sur les figures 1 à 4, l'organe de commande est une bague tournante 10 montée entre la carrure 2 et une lunette 11 que comporte le boîtier 1.The locking device also comprises a control member 10 mounted movable in rotation with reference to the middle part 2, around an axis perpendicular to the general plane of the housing 1, and therefore perpendicular to the actuating axis 20. Generally speaking , the organ control extends in the general plane of the housing which is substantially parallel to the actuation axis and it is arranged movable in this general plane between a first position and a second position corresponding respectively to the locking and unlocking positions of the device lock. Preferably, the control member 10 extends at least partially outside the housing so as to be easily actuated by a user. In the first embodiment presented on figures 1 to 4 , the control member is a rotating ring 10 mounted between the middle part 2 and a bezel 11 included in the case 1.

Le fonctionnement du mécanisme de verrouillage va maintenant être décrit en détails. L'organe de blocage 8 est susceptible d'être déplacé entre une position de verrouillage représentée aux figures 1 et 2 et une position de déverrouillage représentée aux figures 3 et 4. Dans la position de verrouillage, une butée 12 de l'organe de blocage 8 vient se placer directement sous la tête 5 du poussoir 4 afin de substantiellement bloquer le poussoir 4 en translation et d'empêcher ainsi son actionnement pour effectuer la fonction associée à ce poussoir. Dans la position de déverrouillage, l'organe de blocage a été translaté selon l'axe d'actionnement de façon à libérer le poussoir 4 en translation et à le rendre opérationnel.The operation of the locking mechanism will now be described in detail. The locking member 8 is capable of being moved between a locking position shown in figures 1 and 2 and an unlocking position shown in figures 3 and 4 . In the locking position, a stop 12 of the locking member 8 is placed directly under the head 5 of the pusher 4 in order to substantially block the pusher 4 in translation and thus prevent its actuation to perform the function associated with this. pusher. In the unlocked position, the locking member has been translated along the actuating axis so as to release the push-button 4 in translation and to make it operational.

Le déplacement de l'organe de blocage entre sa position de verrouillage et sa position de déverrouillage est commandé par l'organe de commande 10 qui est cinématiquement lié à l'organe de blocage 8. Pour ce faire, l'organe de commande 10 comporte des moyens d'entrainement coopérant avec un moyen suiveur que comporte l'organe de blocage 8. Dans le premier mode de réalisation, les moyens d'entrainement sont formés par une came 13a et un moyen de rappel élastique 15 alors que le moyen suiveur est formé par un ergot 14a venant au contact de la came 13a et jouant le rôle de suiveur de came. Le moyen de rappel élastique 15 (en particulier un ressort hélicoïdal) permet de maintenir l'ergot 14a au contact de la came 13a dans les deux sens d'actionnement de l'organe de commande. Dans la variante représentée, la came 13a est définie par une surface latérale d'un évidement intérieur de la bague tournante 10 dont le profil présente une variation radiale monotone entre deux positions angulaires définissant respectivement une première position et une deuxième position correspondant aux positions de verrouillage et de déverrouillage.The movement of the locking member between its locking position and its unlocking position is controlled by the control member 10 which is kinematically linked to the locking member 8. To do this, the control member 10 comprises drive means cooperating with a follower means that comprises the locking member 8. In the first embodiment, the drive means are formed by a cam 13a and an elastic return means 15 while the follower means is formed by a lug 14a coming into contact with the cam 13a and acting as a cam follower. The elastic return means 15 (in particular a helical spring) keeps the lug 14a in contact with the cam 13a in both directions of actuation of the control member. In the variant shown, the cam 13a is defined by a lateral surface of an internal recess of the rotating ring 10, the profile of which has a monotonic radial variation between two angular positions respectively defining a first position and a second position corresponding to the locking positions. and unlocking.

Afin que les positions de verrouillage et de déverrouillage soient des positions stables, le dispositif de verrouillage comporte de préférence un moyen de positionnement agencé pour maintenir en place l'organe de commande dans les première et deuxième positions susmentionnées. En particulier, l'organe de commande peut être monté pivotant avec frottement gras, ce qui peut suffire à assurer son maintien dans lesdites première et deuxième positions. Le moyen de positionnement présenté sur les figures est premièrement formé par la pente de la came 13a sensiblement nulle à ses deux extrémités 13c qui définissent respectivement lesdites première et deuxième positions. La pente de la came est considérée dans un référentiel circulaire, de sorte qu'une pente nulle correspond à un chemin circulaire.So that the locking and unlocking positions are stable positions, the locking device preferably comprises a positioning means arranged to hold the control member in place in the first and second aforementioned positions. In particular, the control member can be mounted to pivot with heavy friction, which may be sufficient to ensure that it is held in said first and second positions. The positioning means shown in the figures is firstly formed by the slope of the cam 13a which is substantially zero at its two ends 13c which respectively define said first and second positions. The slope of the cam is considered in a circular frame of reference, so that a zero slope corresponds to a circular path.

Le positionnement peut aussi être réalisé ou renforcé par le fait que l'ergot 14a est tenu radialement dans ses deux positions radiales extrêmes, correspondant aux première et deuxième positions, d'une part par une languette interne 16 formée dans la bague tournante 10 et d'autre part par une surface d'appui définie par la carrure 2. La pente de la came dans la zone centrale provoque un déplacement relativement rapide de l'organe de blocage en réponse à un faible déplacement angulaire de l'organe de commande, alors que la pente sensiblement nulle aux extrémités 13c de la came empêche la transmission d'un couple de l'élément suiveur vers l'organe de commande. Ainsi, une rotation d'une trentaine de degrés de la bague tournante permet de déplacer l'organe de blocage dans les deux sens entre ses positions de verrouillage et de déverrouillage.The positioning can also be achieved or reinforced by the fact that the lug 14a is held radially in its two extreme radial positions, corresponding to the first and second positions, on the one hand by an internal tongue 16 formed in the rotating ring 10 and d 'on the other hand by a bearing surface defined by the caseband 2. The slope of the cam in the central zone causes a relatively rapid displacement of the locking member in response to a small angular displacement of the control member, then that the substantially zero slope at the ends 13c of the cam prevents the transmission of a torque from the follower element to the control member. Thus, a rotation of about thirty degrees of the rotating ring allows the locking member to be moved in both directions between its locking and unlocking positions.

Il est également possible de prévoir que le moyen de positionnement de l'organe de commande comporte des points durs qu'il faut dépasser juste avant d'atteindre lesdites première et deuxième positions et donc soit la position de verrouillage, soit la position de déverrouillage. Ceci permet de sécuriser encore davantage les deux positions fonctionnelles de l'organe de commande. Le passage d'un point dur fournit en outre une indication tactile du verrouillage ou du déverrouillage à l'utilisateur.It is also possible to provide for the positioning means of the control member to include hard points which must be overcome just before reaching said first and second positions and therefore either the locking position or the unlocking position. This makes it possible to further secure the two functional positions of the control member. Passing a hard point further provides a tactile indication of locking or unlocking to the user.

Les figures 5 à 9 présentent un deuxième mode de réalisation qui comporte des solutions alternatives à celles présentées dans le premier mode de réalisation. Ces variantes étant indépendantes les unes des autres, elles peuvent être combinées entre elles. Il va de soi que l'invention ne se limite pas aux deux modes de réalisation présentés mais couvre également les combinaisons des différentes alternatives et leurs équivalents telles que définies par le jeu de revendications annexé.The figures 5 to 9 present a second embodiment which comprises alternative solutions to those presented in the first embodiment. These variants being independent of each other, they can be combined with each other. It goes without saying that the invention is not limited to the two embodiments presented but also covers the combinations of the various alternatives and their equivalents as defined by the appended set of claims.

Dans une première variante du deuxième mode de réalisation, l'organe de blocage est un coulisseau 8b apte à coulisser selon la direction de l'axe d'actionnement du poussoir dans une glissière radiale 9 que comporte la carrure. La glissière 9 peut présenter une forme en queue d'aronde ou tout autre profil adéquat.In a first variant of the second embodiment, the locking member is a slide 8b capable of sliding in the direction of the actuating axis of the pusher in a radial slide 9 which the middle part comprises. The slide 9 may have a dovetail shape or any other suitable profile.

Dans une seconde variante, l'organe de commande 10 est directement formé par une lunette tournante 11 que comporte ou supporte le boîtier.In a second variant, the control member 10 is directly formed by a rotating bezel 11 which the housing comprises or supports.

Selon une autre variante, la came est formée par une rainure 13b logeant au moins partiellement l'ergot 14a et ayant sensiblement la largeur du diamètre de cet ergot. Cette configuration correspond à une commande desmodromique pour laquelle le moyen de rappel élastique des moyens d'entraînement de l'organe de blocage peut être supprimé afin de limiter l'encombrement du dispositif de verrouillage. Il peut toutefois être intéressant de conserver un faible moyen de rappel élastique dans ce cas pour rattraper les jeux entre les pièces et éliminer de petites translations parasites de l'organe de blocage.According to another variant, the cam is formed by a groove 13b at least partially accommodating the lug 14a and having substantially the width of the diameter of this lug. This configuration corresponds to a desmodromic control for which the elastic return means of the drive means of the locking member can be eliminated in order to limit the size of the locking device. It may however be interesting to keep a low elastic return means in this case to take up the play between the parts and eliminate small parasitic translations of the locking member.

De façon alternative aux deux modes de réalisation présentés sur les figures, la came peut tout aussi bien être une nervure proéminente et le moyen suiveur une encoche usinée dans l'organe de blocage et recevant la nervure, le glissement de la nervure dans l'encoche provoquant le déplacement radial de l'organe de verrouillage.As an alternative to the two embodiments shown in the figures, the cam can just as easily be a prominent rib and the follower means a notch machined in the locking member and receiving the rib, the sliding of the rib in the notch. causing the radial displacement of the locking member.

Le dispositif de verrouillage peut également comporter un moyen visuel facilitant la reconnaissance de la position de l'organe de blocage. Ce moyen visuel, typiquement un marquage, peut se situer sur l'organe de commande ou directement sur l'organe de blocage. Dans les modes de réalisation présentés, l'organe de blocage est dissimulé en position de déverrouillage alors qu'il est visible en position de verrouillage. La visibilité de l'organe de verrouillage, qui peut être renforcée par une couleur voyante, est dans ce cas le moyen visuel qui permet de connaitre sa position.The locking device may also include visual means facilitating recognition of the position of the locking member. This visual means, typically a marking, can be located on the control member or directly on the locking member. In the embodiments shown, the locking member is concealed in the unlocked position while it is visible in the locked position. The visibility of the locking member, which can be enhanced by a conspicuous color, is in this case the visual means which makes it possible to know its position.

On remarque également sur les figures 4 et 9 qu'il est facile de prévoir que l'organe de commande 10 comporte plusieurs rainures 13b, respectivement plusieurs cames 13a afin de verrouiller simultanément plusieurs poussoirs.We also notice on the figures 4 and 9 that it is easy to provide that the control member 10 comprises several grooves 13b, respectively several cams 13a in order to simultaneously lock several pushers.

Ainsi, les différentes solutions proposées permettent de réaliser des dispositifs de verrouillage pour un ou plusieurs poussoirs qui soient plus faciles et plus rapides à utiliser en verrouillant d'un seul geste. Le fait que l'organe de blocage puisse être entièrement escamoté dans la carrure rend le dispositif de verrouillage discret. De plus, l'actionnement d'un poussoir usuel n'est pas rendu moins aisé par la présence du dispositif de verrouillage lorsque ce dernier est mis dans la position de déverrouillage. Finalement, le fait de déporter l'organe de commande au niveau de la lunette permet de ne quasi pas augmenter l'encombrement des poussoirs avec l'agencement du dispositif de verrouillage selon l'invention, ce qui permet de conserver une apparence classique au boîtier de montre qui peut paraître extérieurement quasi identique à un boîtier correspondant sans un tel dispositif de verrouillage.Thus, the various solutions proposed make it possible to produce locking devices for one or more push-buttons which are easier and faster to use by locking with a single gesture. The fact that the locking member can be fully retracted into the middle part makes the locking device discreet. In addition, the actuation of a conventional pusher is not made less easy by the presence of the locking device when the latter is placed in the unlocking position. Finally, the fact of moving the control member at the level of the bezel makes it possible to practically not increase the size of the pushers with the arrangement of the locking device according to the invention, which makes it possible to keep a classic appearance to the watch case which may appear on the outside almost identical to a corresponding case without such a locking device.

Claims (12)

  1. A timepiece containing a case (1), a pusher (4) mounted in a case middle (2) of the case and a locking device adapted to lock the pusher, this pusher being arranged in such a way as to be capable of undergoing a translation in an axis of actuation of the pusher by a user, the locking device containing a blocking means (8) and a control means (10) arranged to control the displacement of the blocking means between a locking position and an unlocking position, in which positions the pusher is respectively blocked and free in translation, the control means extending in a general plane parallel to said actuation axis and being arranged movably in this general plane between a first position and a second position which correspond respectively to the locking and unlocking positions for the blocking means driven by the control means; characterized in that said blocking means (8) is arranged movably in a translational manner along the actuation axis and with the ability to be displaced by the control means along this actuation axis between said locking position, where it forms an axial abutment for the pusher, and said unlocking position set back from the locking position, the control means containing for this purpose means for driving the blocking means in the actuation axis.
  2. Timepiece according to Claim 1, characterized in that the driving means (13) contains a cam (13a, 13b) for the radial positioning of the blocking means, this cam cooperating with a follower means (14a) that the blocking means contains.
  3. Timepiece according to Claim 2, characterized in that the driving means contains an elastic return means (15) seeking to maintain the follower means in contact with the cam (13a).
  4. Timepiece according to Claim 2 or 3, characterized in that the cam exhibits a groove (13b) and the follower means is a pin (14a) inserted into this groove.
  5. Timepiece according to Claim 2 or 3, characterized in that the cam is formed by a rib and the follower means is a slot.
  6. Timepiece according to any one of the preceding claims, and of which the case contains or supports a bezel (11), characterized in that the control means (10) is formed by a ring which is mounted between the case middle (2) and the bezel (11) in such a way as to be rotatably mounted about an axis that is substantially perpendicular to said actuation axis.
  7. Timepiece according to any one of the preceding claims, and of which the case contains or supports a bezel (11), characterized in that said control means (10) is formed by the bezel (11) which is rotatably arranged.
  8. Timepiece according to any one of the preceding claims, characterized in that the blocking means (8) is a cylindrical sleeve (8a) surrounding the pusher (4) and with the ability to be displaced in said actuation axis of the pusher between said locking and unlocking positions.
  9. Timepiece according to any one of Claims 1 to 7, characterized in that the blocking means (8) is a slider (8b) which is arranged slidably in said actuation axis of the pusher between said locking and unlocking positions.
  10. Timepiece according to any one of the preceding claims, characterized in that the pusher (4) contains a head (5) and the blocking means (8) is adapted to be positioned in order to lock the pusher, at a short distance from this head or bearing against the latter.
  11. Timepiece according to any one of the preceding claims, characterized in that the locking device contains a visual means facilitating the recognition of the position of the blocking means (8).
  12. Timepiece according to any one of the preceding claims, characterized in that the locking device contains a means of positioning arranged in order to maintain the control means (10) in one or other of its first and second positions.
EP18172258.8A 2017-05-24 2018-05-15 Timepiece comprising a device for locking a pusher Active EP3407144B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP17172883 2017-05-24

Publications (3)

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EP3407144A2 EP3407144A2 (en) 2018-11-28
EP3407144A3 EP3407144A3 (en) 2019-01-23
EP3407144B1 true EP3407144B1 (en) 2021-06-30

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EP18172258.8A Active EP3407144B1 (en) 2017-05-24 2018-05-15 Timepiece comprising a device for locking a pusher

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US (1) US10725429B2 (en)
EP (1) EP3407144B1 (en)
JP (1) JP6537672B2 (en)
KR (1) KR102071790B1 (en)
CN (1) CN108958001B (en)
CH (1) CH713834A2 (en)

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Also Published As

Publication number Publication date
US20180341228A1 (en) 2018-11-29
EP3407144A2 (en) 2018-11-28
KR102071790B1 (en) 2020-01-30
JP2018197748A (en) 2018-12-13
US10725429B2 (en) 2020-07-28
JP6537672B2 (en) 2019-07-03
CN108958001B (en) 2020-11-13
KR20180128852A (en) 2018-12-04
EP3407144A3 (en) 2019-01-23
CH713834A2 (en) 2018-11-30
CN108958001A (en) 2018-12-07

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