EP0762241B1 - Timepiece including a control mechanism with stem and trigger piece - Google Patents

Timepiece including a control mechanism with stem and trigger piece Download PDF

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Publication number
EP0762241B1
EP0762241B1 EP96113245A EP96113245A EP0762241B1 EP 0762241 B1 EP0762241 B1 EP 0762241B1 EP 96113245 A EP96113245 A EP 96113245A EP 96113245 A EP96113245 A EP 96113245A EP 0762241 B1 EP0762241 B1 EP 0762241B1
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EP
European Patent Office
Prior art keywords
movement
branch
timepiece according
extractor
extends
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.)
Expired - Lifetime
Application number
EP96113245A
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German (de)
French (fr)
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EP0762241A1 (en
Inventor
Olivier Boissenin
Daniel Knuchel
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Swatch Group Management Services AG
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Swatch Group Management Services AG
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Publication date
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Publication of EP0762241A1 publication Critical patent/EP0762241A1/en
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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
    • G04B37/06—Forming the passage for the winding stem through the case; Divided winding stems
    • G04B37/062—Means for preventing the winding stem from being pulled out too far
    • G04B37/064—Means for preventing the winding stem from being pulled out too far by a tirette

Definitions

  • the invention relates to a timepiece comprising a rod and pull control mechanism. More particularly, the invention relates to a watch bracelet including a monocoque box, that is to say having a middle part and a back made in one piece, equipped with a device allowing to act on the pull tab in order to release the control rod which acts on the movement, such as the winding or setting rod the time of the timepiece, to remove it longitudinally towards the outside of the box so that the movement can be extracted from the box from the when the ice is removed.
  • a monocoque box that is to say having a middle part and a back made in one piece, equipped with a device allowing to act on the pull tab in order to release the control rod which acts on the movement, such as the winding or setting rod the time of the timepiece, to remove it longitudinally towards the outside of the box so that the movement can be extracted from the box from the when the ice is removed.
  • the pull tab pivotally mounted on the movement plate, is subjected to the action of a leaf spring which tends to engage a protrusion provided at a end of the zipper in a groove in the rod control, the other end of the pull tab being intended for order a scale engaged in the groove of a pinion sliding mounted mobile on the winding stem.
  • Document CH 558 039 proposes to overcome this problem by providing a watch of the aforementioned type comprising an extractor lever, the free end of which extends beyond the movement and whose opposite end acts on a end of the pull pin pivot axis so that when you put pressure on the part protruding from the lever, the zipper axis moves longitudinally against the action of a leaf spring and raises the pull tab so that the projection comes out from the throat of the stem. The rod can then be removed from the movement.
  • this construction has the disadvantage to require a particular pull pin - longer than a classic axis - as well as a special assembly of this axis in the frame of the movement, on the one hand, that it is movable longitudinally in the frame and, on the other hand, that one of its ends can cooperate with the end of the extractor lever.
  • This construction requires also a free space above the whole zipper so that she can go up.
  • the main aim of the invention is therefore to remedy the aforementioned disadvantages of the prior art in providing a timepiece having a case of the type monocoque and comprising a rod control mechanism and zipper, this timepiece being provided with a simple and economical device that requires no special adaptation of the pull tab assembly on the frame of movement and which allows to lift the zipper to release it from the winding stem without having to pierce the bottom of the box.
  • a device which, once the ice has been removed, allows slide the extractor element using a simple tool gripper, such as pliers, to lift the zipper and release the control rod. Furthermore, this device allows not to modify the construction of the mounting the pull tab in the movement and so ability to equip construction movements classic.
  • the extractor element has a U-shape, the first branch being connected via a central branch to the second branch which extends substantially parallel to the first branch and which includes a folded portion protruding from the periphery of the movement to form the gripping arm.
  • the extractor element can thus be produced using a simple folded and inexpensive element, such as a wire. Furthermore, given the simplicity of the form of this element, its mounting on the movement is easy.
  • the bottom of the box includes a recess in which the central branch extends, the latter resting on the bottom of the recess in the position of rest of the extractor element.
  • the extractor element does not require the forecast no special means for fixing the latter on the move.
  • this part timepiece in the form of a wristwatch.
  • Watch 1 comprises a movement 2, comprising classic way a plate and bridges (not shown), surmounted by a dial 4 above which move display means 6.
  • Movement 2 is housed in a box 8 comprising a bottom 10 and a middle 12 in one piece.
  • the box is closed by a ice 14 conventionally removed in a first housing 16 of the middle part 12.
  • the glass 14 applies a flange 18 against the edge of dial 4.
  • the glass 14 is also surmounted, in its part peripheral, of a decorative telescope 20 driven into a second housing 22 of the middle 12.
  • Watch 1 further comprises a mechanism for control 24 which acts on movement 2.
  • Mechanism 24 allows, for example, to set the time of day watch and its winding in the case of a mechanical watch or, if necessary, other functions such as resetting a calendar indicator to the date.
  • the mechanism 24 includes a control rod 26 which passes radially through a bore 28 of the middle 12 and which is guided in it.
  • the rod 26 comprises a first part 30 which extends outside the box 8 and on which is fixed a crown 32, and a second part 34 which extends into a clearance (not shown) provided for this effect in movement 2.
  • the part of the rod 26 cooperating with bore 28 is provided with a groove annular 36 in which is placed a seal sealing 38.
  • the part 24 comprises a groove 40 and a portion with square cross section 42 intended for cooperate with a square bore of a sliding pinion (not represented).
  • the mechanism 24 further comprises a pull tab 44 (partially shown) pivotally mounted on a frame or a movement 2 plate.
  • the pull tab 44 includes a part provided with a projection 46 which is engaged in the groove 40.
  • This mechanism 24 also includes means such as only elastic means which tend to engage the projection 46 in the groove 40. In the example illustrated, these means elastic can be formed by the zipper itself as in this case or by a leaf spring or similar.
  • the watch according to the invention further comprises a extractor device 48 for lifting the pull tab 44 to release the projection 46 from the groove 40 from the rod command 26 and release it, by actuating this device from above the watch when the glass 14 is removed and movement 2 is still fitted in the monohull box 8.
  • the extractor device comprises a single extractor element 48 which extends partially in a clearance (not shown) of movement 2 and partially outside of the latter so that that it can be accessed for example with a tool such a clip or the like from the top of the watch.
  • the extractor element 48 is movable between a first so-called rest position, shown in Figure 1, in which it does not act on the pull tab 44 or in others terms it allows the pull tab 44 to be engaged in the groove 40, and a second so-called functional position, shown in Figure 2, in which the element extractor 48 acts directly or indirectly on the zipper 44 to push it out of the throat 40 of the control rod 26.
  • the extractor element 48 a the configuration of a "U".
  • This element 48 includes a first branch 50 and a second branch 52 which extends noticeably at the first.
  • the first branch 50 and the second 52 are connected by a central branch 54 which extends substantially perpendicular to the branches 50 and 52.
  • the first branch 50 slides in the movement 2, in a direction substantially perpendicular to the plane of movement 2.
  • the branch 50 actually slides in a clearance 53 (shown diagrammatically in the drawing) of the movement 2 which leads on the one hand into the part lower of movement 2 and other substantially in look of the pull tab 44 so that the end of the branch 50 is also located opposite the pull tab 44, and preferably, facing part of the pull tab 44 which is close to the projection 46.
  • a clearance can, for example, be formed by clearance normally provided in conventional movements to insert a tool such as the tip of a screwdriver, to release the rod of the pull tab 44.
  • the second branch 52 includes a portion which makes protruding from the periphery of movement 2 for form a gripping arm 54. More specifically, the portion 54 is constituted by the extreme part or free end of branch 52 which is folded back at 90 degrees outward from the "U". In the example shown, the branch 52 extends outside of the movement 2, and the gripping arm 55 is housed in a lateral clearance 56 formed in the inner wall 58 of the middle part 12 which surrounds movement 2.
  • the element extractor 48 is produced by a section folded element constant transverse and in particular by a metallic wire folded. Of course, this element 48 could, according to a variant, also be made of plastic, by example by molding.
  • the central branch 54 connecting the branches 50 and 52 extends outside movement 2 in a recess 60 formed in the bottom 10 of the box 8. More specifically, the branch 54 rests on the bottom 62 of the recess 60 when the extractor element 48 is in its position rest ( Figure 1).
  • the stroke C of the extractor element 48 is determined by the distance separating the bottom 62 of the recess 60 from the surface lower 64 of the movement as far as the branch central 54 abuts against the lower surface 64 in the functional position (figure 2) of the element extractor 48.
  • this race C will be determined differently depending on an alternative embodiment (not shown) in which movement 2 comprises, in its lower part, a recess or a notch in which at least partially extends the branch central 54 in the functional position, and the case if necessary, in the rest position of the extractor element 48.
  • movement 2 comprises, in its lower part, a recess or a notch in which at least partially extends the branch central 54 in the functional position, and the case if necessary, in the rest position of the extractor element 48.
  • the depth of the hollow 60 can be reduced or the recess 60 can be completely removed, the stroke C then being determined by the height of the notch in the part lower of movement 2 in which branch 54 can stay in the functional position.
  • the element extractor 48 can be mounted just before the fitting of the movement 2 and this by simply introducing the branch 50 in the appropriate clearance of movement 2 and therefore without the need to use any tool.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electric Clocks (AREA)
  • Toys (AREA)
  • Measurement Of Unknown Time Intervals (AREA)
  • Electromechanical Clocks (AREA)

Description

L'invention concerne une pièce d'horlogerie comportant un mécanisme de commande à tige et à tirette. Plus particulièrement, l'invention concerne une montre bracelet comprenant une boíte monocoque, c'est-à-dire ayant une carrure et un fond réalisés en une seule pièce, munie d'un dispositif permettant d'agir sur la tirette afin de libérer la tige de commande qui agit sur le mouvement, telle que la tige de remontoir ou de mise à l'heure de la pièce d'horlogerie, pour la retirer longitudinalement vers l'extérieur de la boíte de sorte que le mouvement puisse être extrait de la boíte depuis le dessus lorsque la glace est retirée.The invention relates to a timepiece comprising a rod and pull control mechanism. More particularly, the invention relates to a watch bracelet including a monocoque box, that is to say having a middle part and a back made in one piece, equipped with a device allowing to act on the pull tab in order to release the control rod which acts on the movement, such as the winding or setting rod the time of the timepiece, to remove it longitudinally towards the outside of the box so that the movement can be extracted from the box from the when the ice is removed.

Dans les constructions classiques de telles pièces d'horlogerie, la tirette, montée à pivotement sur la platine du mouvement, est soumise à l'action d'un ressortlame qui tend à engager une saillie ménagée à une extrémité de la tirette dans une gorge de la tige de commande, l'autre extrémité de la tirette étant destinée à commander une bascule engagée dans la rainure d'un pignon coulant monté mobile sur la tige de remontoir.In conventional constructions of such parts clockwork, the pull tab, pivotally mounted on the movement plate, is subjected to the action of a leaf spring which tends to engage a protrusion provided at a end of the zipper in a groove in the rod control, the other end of the pull tab being intended for order a scale engaged in the groove of a pinion sliding mounted mobile on the winding stem.

Il arrive qu'après l'emboítage des mouvements dans des boítes monocoques et la mise en place des tiges de mise à l'heure, on s'aperçoive, au cours d'une étape de contrôle ultérieur, que le mouvement ou la boíte présente certaines défectuosités. Il est alors souvent nécessaire d'extraire le mouvement de la boíte afin d'intervenir sur l'un ou l'autre de ces éléments.It happens that after the interlocking movements in monocoque boxes and the installation of rods setting the time, we realize, during a stage of subsequent control, whether the movement or the box has certain defects. It is then often necessary extract the movement of the box to intervene on any of these.

Par exemple, pour récupérer un mouvement défectueux qui est logé dans une boíte monocoque réalisée en matière plastique, on perce généralement le fond de la boíte en regard d'une ouverture appropriée ménagée dans le mouvement dans la région de la tirette et l'on introduit dans cette ouverture un outil capable de dégager la tirette de la tige de remontoir ce qui permet ainsi de retirer cette tige. Le mouvement peut alors être facilement extrait de la boíte par le haut, de façon classique, une fois la glace retirée. La boíte est donc inutilisable après cette opération. Si une telle pratique n'a que peu de conséquence économique dans le cas de boítes en matière plastique, la matière pouvant être facilement recyclée et son coût étant relativement bas, on comprend aisément qu'il en va différemment, pour des raisons évidentes de coût, lorsqu'il s'agit d'intervenir sur un mouvement monté dans une boíte monocoque réalisée en métal.For example, to recover a faulty movement which is housed in a monocoque box made of material plastic, we usually pierce the bottom of the box look of an appropriate opening in the movement in the zipper area and we introduce in this opening a tool capable of releasing the puller of the winding stem which allows remove this rod. The movement can then be easily removed from the box from above, so classic, once the ice has been removed. The box is therefore unusable after this operation. If such a practice has little economic consequence in the case of plastic boxes, the material being easily recycled and its cost being relatively low, easily understands that things are different, for obvious cost reasons when it comes to intervening on a movement mounted in a monocoque box made made of metal.

Les solutions courantes de l'art antérieur pour pallier ce problème consistent, soit à fournir une tige arrachable, c'est-à-dire comprenant une gorge à bord incliné dans laquelle est engagée l'extrémité de la tirette, ce qui est peu fiable en raison d'un risque important d'arrachage de la tige par l'utilisateur, soit à fournir une tige du type tige brisée, ce qui est plus coûteux du fait du nombre important de pièces supplémentaires à mettre en oeuvre qu'elle nécessite.Common solutions of the prior art for to overcome this problem consist either in providing a rod removable, that is to say comprising a groove on board inclined in which is engaged the end of the pull tab, which is unreliable due to a risk important to tear off the rod by the user, i.e. provide a broken rod type rod, which is more expensive due to the large number of parts additional to implement it requires.

Le document CH 558 039 propose de pallier ce problème en fournissant une montre du type susmentionnée comportant un levier extracteur, dont l'extrémité libre déborde du mouvement et dont l'extrémité opposée agit sur une extrémité de l'axe de pivotement de la tirette de manière que, lorsqu'on exerce une pression sur la partie débordante du levier, l'axe de la tirette se déplace longitudinalement à l'encontre de l'action d'un ressortlame et soulève la tirette pour que la saillie se dégage de la gorge de la tige. La tige peut alors être retirée du mouvement.Document CH 558 039 proposes to overcome this problem by providing a watch of the aforementioned type comprising an extractor lever, the free end of which extends beyond the movement and whose opposite end acts on a end of the pull pin pivot axis so that when you put pressure on the part protruding from the lever, the zipper axis moves longitudinally against the action of a leaf spring and raises the pull tab so that the projection comes out from the throat of the stem. The rod can then be removed from the movement.

Cette construction présente cependant l'inconvénient d'exiger un axe de tirette particulier - plus long qu'un axe classique - ainsi qu'un montage spécial de cet axe dans le bâti du mouvement pour, d'une part, qu'il soit mobile longitudinalement dans le bâti et, d'autre part, qu'une de ses extrémités puisse coopérer avec l'extrémité du levier extracteur. Cette construction nécessite également un espace libre au dessus de toute la tirette pour qu'elle puisse monter.However, this construction has the disadvantage to require a particular pull pin - longer than a classic axis - as well as a special assembly of this axis in the frame of the movement, on the one hand, that it is movable longitudinally in the frame and, on the other hand, that one of its ends can cooperate with the end of the extractor lever. This construction requires also a free space above the whole zipper so that she can go up.

L'invention a donc pour but principal de remédier aux inconvénients susmentionnés de l'art antérieur en fournissant une pièce d'horlogerie ayant une boíte du type monocoque et comportant un mécanisme de commande à tige et à tirette, cette pièce d'horlogerie étant munie d'un dispositif simple et économique qui ne nécessite aucune adaptation particulière du montage de la tirette sur le bâti du mouvement et qui permette de soulever la tirette pour la dégager de la tige de remontoir sans avoir à percer le fond de la boíte.The main aim of the invention is therefore to remedy the aforementioned disadvantages of the prior art in providing a timepiece having a case of the type monocoque and comprising a rod control mechanism and zipper, this timepiece being provided with a simple and economical device that requires no special adaptation of the pull tab assembly on the frame of movement and which allows to lift the zipper to release it from the winding stem without having to pierce the bottom of the box.

A cet effet, l'invention a donc pour objet une pièce d'horlogerie comportant :

  • une boíte ayant un fond et une carrure en une seule pièce, fermée par une glace,
  • un mouvement d'horlogerie logé dans ladite boíte,
  • un mécanisme de commande agissant sur ledit mouvement,
  • ledit mécanisme de commande comprenant
    une tige de commande traversant ladite carrure, ladite tige ayant une première extrémité qui s'étend à l'extérieur de ladite boíte et une deuxième extrémité qui s'étend dans ledit mouvement, et
    une tirette, dont une partie est engagée dans une gorge de la tige de commande, et
  • un dispositif extracteur permettant de pousser ladite partie de la tirette pour la dégager de la tige de commande,
    ladite pièce d'horlogerie étant caractérisée en ce que le dispositif extracteur comprend un élément extracteur ayant une première branche qui coulisse à l'intérieur du mouvement dans une direction sensiblement perpendiculaire au plan du mouvement, une extrémité de ladite première branche étant sensiblement en regard de la tirette, et une deuxième branche qui comprend une portion faisant saillie de la périphérie du mouvement pour former un bras de préhension, ledit élément extracteur étant mobile entre une première position dite de repos dans laquelle il n'agit pas sur la tirette et une deuxième position dite fonctionnelle dans laquelle l'extrémité de la première branche pousse la tirette en dehors de la gorge de la tige de commande.
To this end, the invention therefore relates to a timepiece comprising:
  • a box having a bottom and a middle part in one piece, closed by a crystal,
  • a clockwork movement housed in said box,
  • a control mechanism acting on said movement,
  • said control mechanism comprising
    a control rod passing through said middle part, said rod having a first end which extends outside of said box and a second end which extends in said movement, and
    a pull tab, part of which is engaged in a groove in the control rod, and
  • an extractor device making it possible to push said part of the zipper to release it from the control rod,
    said timepiece being characterized in that the extractor device comprises an extractor element having a first branch which slides inside the movement in a direction substantially perpendicular to the plane of the movement, one end of said first branch being substantially opposite the pull tab, and a second branch which comprises a portion projecting from the periphery of the movement to form a gripping arm, said extractor element being movable between a first so-called rest position in which it does not act on the pull tab and a second so-called functional position in which the end of the first branch pushes the zipper out of the groove of the control rod.

Grâce à ces caractéristiques, on fournit un dispositif qui, une fois la glace ôtée, permet de faire coulisser l'élément extracteur au moyen d'un simple outil de préhension, telle qu'une pince, pour soulever la tirette et libérer la tige de commande. En outre, ce dispositif permet de ne pas modifier la construction du montage de la tirette dans le mouvement et ainsi de pouvoir en équiper des mouvements de construction classique.Thanks to these characteristics, a device which, once the ice has been removed, allows slide the extractor element using a simple tool gripper, such as pliers, to lift the zipper and release the control rod. Furthermore, this device allows not to modify the construction of the mounting the pull tab in the movement and so ability to equip construction movements classic.

Selon un mode de réalisation préféré de l'invention, l'élément extracteur présente une forme en U, la première branche étant reliée via une branche centrale à la deuxième branche qui s'étend sensiblement parallèlement à la première branche et qui comprend une portion repliée faisant saillie de la périphérie du mouvement pour former le bras de préhension.According to a preferred embodiment of the invention, the extractor element has a U-shape, the first branch being connected via a central branch to the second branch which extends substantially parallel to the first branch and which includes a folded portion protruding from the periphery of the movement to form the gripping arm.

L'élément extracteur peut ainsi être réalisé à l'aide d'un simple élément plié et peu coûteux, tel qu'un fil. Par ailleurs, compte tenu de la simplicité de la forme de cet élément, son montage sur le mouvement est aisé.The extractor element can thus be produced using a simple folded and inexpensive element, such as a wire. Furthermore, given the simplicity of the form of this element, its mounting on the movement is easy.

Selon des caractéristiques avantageuses de l'invention, le fond de la boíte comprend une creusure dans laquelle s'étend la branche centrale, cette dernière reposant sur le fond de la creusure dans la position de repos de l'élément extracteur.According to advantageous characteristics of the invention, the bottom of the box includes a recess in which the central branch extends, the latter resting on the bottom of the recess in the position of rest of the extractor element.

Ainsi, l'élément extracteur ne nécessite la prévision d'aucun moyen particulier pour la fixation de ce dernier sur le mouvement. Thus, the extractor element does not require the forecast no special means for fixing the latter on the move.

D'autres avantages et caractéristiques de l'invention apparaítront à la lecture de la description détaillée qui suit d'un exemple de réalisation donné à titre illustratif et non limitatif en liaison avec le dessin annexé dans lequel :

  • la figure 1 est une coupe axiale partielle d'une pièce d'horlogerie comprenant un dispositif extracteur selon l'invention, dans laquelle seuls les éléments nécessaires à la compréhension de l'invention ont été représentés, le dispositif extracteur étant représenté dans une position dite de repos;
  • la figure 2 est une coupe analogue à celle de la figure 1, le dispositif extracteur étant représenté dans une position de fonctionnelle et la glace et la lunette ayant été omises, et
  • la figure 3 est une vue partielle de dessus partiellement arrachée montrant une partie du dispositif selon la figure 2.
Other advantages and characteristics of the invention will appear on reading the detailed description which follows of an exemplary embodiment given by way of illustration and not limitation in conjunction with the appended drawing in which:
  • Figure 1 is a partial axial section of a timepiece comprising an extractor device according to the invention, in which only the elements necessary for understanding the invention have been shown, the extractor device being shown in a so-called position rest;
  • FIG. 2 is a section similar to that of FIG. 1, the extractor device being shown in a functional position and the lens and the bezel having been omitted, and
  • FIG. 3 is a partial top view partially cut away showing a part of the device according to FIG. 2.

En se référant aux figures, on voit une pièce d'horlogerie selon l'invention, désignée par la référence numérique générale 1. Dans l'exemple illustré, cette pièce d'horlogerie à la forme d'une montre-bracelet.Referring to the figures, we see a room timepieces according to the invention, designated by the reference general digital 1. In the example shown, this part timepiece in the form of a wristwatch.

La montre 1 comprend un mouvement 2, comportant de façon classique une platine et des ponts (non représentés), surmonté d'un cadran 4 au dessus duquel se déplacent des moyens d'affichage 6. Le mouvement 2 est logée dans une boíte 8 comprenant un fond 10 et une carrure 12 en une seule pièce. La boíte est fermée par une glace 14 chassée de façon classique dans un premier logement 16 de la carrure 12. Dans l'exemple illustré, la glace 14 applique un réhaut 18 contre le bord du cadran 4. La glace 14 est par ailleurs surmontée, dans sa partie périphérique, d'une lunette décorative 20 chassée dans un deuxième logement 22 de la carrure 12.Watch 1 comprises a movement 2, comprising classic way a plate and bridges (not shown), surmounted by a dial 4 above which move display means 6. Movement 2 is housed in a box 8 comprising a bottom 10 and a middle 12 in one piece. The box is closed by a ice 14 conventionally removed in a first housing 16 of the middle part 12. In the example illustrated, the glass 14 applies a flange 18 against the edge of dial 4. The glass 14 is also surmounted, in its part peripheral, of a decorative telescope 20 driven into a second housing 22 of the middle 12.

La montre 1 comprend en outre un mécanisme de commande 24 qui agit sur le mouvement 2. Le mécanisme 24 permet, par exemple, d'effectuer la mise à l'heure de la montre et son remontage dans le cas d'une montre mécanique ou encore, le cas échéant, d'autres fonctions telles que la remise à la date d'un indicateur d'un calendrier.Watch 1 further comprises a mechanism for control 24 which acts on movement 2. Mechanism 24 allows, for example, to set the time of day watch and its winding in the case of a mechanical watch or, if necessary, other functions such as resetting a calendar indicator to the date.

Le mécanisme 24 comprend une tige de commande 26 qui traverse radialement un alésage 28 de la carrure 12 et qui est guidée dans celui-ci. La tige 26 comprend une première partie 30 qui s'étend à l'extérieur de la boíte 8 et sur laquelle est fixée une couronne 32, et une deuxième partie 34 qui s'étend dans un dégagement (non représenté) prévu à cet effet dans le mouvement 2. La partie de la tige 26 coopérant avec l'alésage 28 est munie d'une gorge annulaire 36 dans laquelle est disposé un joint d'étanchéité 38. La partie 24 comprend une gorge 40 et une portion à section transversale carrée 42 destiné à coopérer avec un alésage carré d'un pignon coulant (non représenté).The mechanism 24 includes a control rod 26 which passes radially through a bore 28 of the middle 12 and which is guided in it. The rod 26 comprises a first part 30 which extends outside the box 8 and on which is fixed a crown 32, and a second part 34 which extends into a clearance (not shown) provided for this effect in movement 2. The part of the rod 26 cooperating with bore 28 is provided with a groove annular 36 in which is placed a seal sealing 38. The part 24 comprises a groove 40 and a portion with square cross section 42 intended for cooperate with a square bore of a sliding pinion (not represented).

Le mécanisme 24 comprend en outre une tirette 44 (partiellement représentée) montée pivotante sur un bâti ou une platine du mouvement 2. La tirette 44 comporte une partie munie d'une saillie 46 qui est engagée dans la gorge 40. Ce mécanisme 24 comprend aussi des moyens tels que des moyens élastiques qui tendent à engager la saillie 46 dans la gorge 40. Dans l'exemple illustré, ces moyens élastiques peuvent être formés par la tirette elle-même comme dans le cas présent ou par un ressort-lame ou analogue.The mechanism 24 further comprises a pull tab 44 (partially shown) pivotally mounted on a frame or a movement 2 plate. The pull tab 44 includes a part provided with a projection 46 which is engaged in the groove 40. This mechanism 24 also includes means such as only elastic means which tend to engage the projection 46 in the groove 40. In the example illustrated, these means elastic can be formed by the zipper itself as in this case or by a leaf spring or similar.

Pour plus de détail sur un montage possible de la tirette 44 dans le mouvement 2, on se référera au document US 4 469 448 qui décrit un exemple de mécanisme de commande à tige agissant sur une tirette.For more details on possible mounting of the zipper 44 in movement 2, we will refer to the document US 4,469,448 which describes an example of a mechanism for rod control acting on a pull tab.

La montre selon l'invention comprend en outre un dispositif extracteur 48 destiné à soulever la tirette 44 pour dégager la saillie 46 de la gorge 40 de la tige de commande 26 et libérer celle-ci, par actionnement de ce dispositif depuis le dessus de la montre lorsque la glace 14 est ôtée et que le mouvement 2 est encore emboíté dans la boíte monocoque 8. The watch according to the invention further comprises a extractor device 48 for lifting the pull tab 44 to release the projection 46 from the groove 40 from the rod command 26 and release it, by actuating this device from above the watch when the glass 14 is removed and movement 2 is still fitted in the monohull box 8.

Dans cet exemple, le dispositif extracteur comprend un seul élément extracteur 48 qui s s'étend partiellement dans un dégagement (non représenté) du mouvement 2 et partiellement à l'extérieur de ce dernier de façon à ce qu'il puisse être accessible par exemple avec un outil tel qu'une pince ou analogue, depuis le dessus de la montre. L'élément extracteur 48 est mobile entre une première position dite de repos, représentée à la figure 1, dans laquelle il n'agit pas sur la tirette 44 ou en d'autres termes il permet à la tirette 44 d'être engagée dans la gorge 40, et une deuxième position dite fonctionnelle, représentée à la figure 2, dans laquelle l'élément extracteur 48 agit directement ou indirectement sur la tirette 44 pour la pousser en dehors de la gorge 40 de la tige de commande 26.In this example, the extractor device comprises a single extractor element 48 which extends partially in a clearance (not shown) of movement 2 and partially outside of the latter so that that it can be accessed for example with a tool such a clip or the like from the top of the watch. The extractor element 48 is movable between a first so-called rest position, shown in Figure 1, in which it does not act on the pull tab 44 or in others terms it allows the pull tab 44 to be engaged in the groove 40, and a second so-called functional position, shown in Figure 2, in which the element extractor 48 acts directly or indirectly on the zipper 44 to push it out of the throat 40 of the control rod 26.

Dans l'exemple représenté, l'élément extracteur 48 a la configuration d'un "U". Cet élément 48 comprend une première branche 50 et une deuxième branche 52 qui s'étend sensiblement à la première. La première branche 50 et la deuxième 52 sont reliées par une branche centrale 54 qui s'étend sensiblement perpendiculairement aux branches 50 et 52. La première branche 50 coulisse dans le mouvement 2, dans une direction sensiblement perpendiculaire au plan du mouvement 2. La branche 50 coulisse en fait dans un dégagement 53 (représenté schématiquement au dessin) du mouvement 2 qui débouche d'une part dans la partie inférieure du mouvement 2 et d'autre sensiblement en regard de la tirette 44 si bien que l'extrémité de la branche 50 se trouve également en regard de la tirette 44, et de préférence, en regard d'une partie de la tirette 44 qui est proche de la saillie 46. Un tel dégagement peut, par exemple, être formé par le dégagement normalement prévu dans les mouvements classiques pour insérer un outil tel que la pointe d'un tournevis, afin de libérer la tige de la tirette 44.In the example shown, the extractor element 48 a the configuration of a "U". This element 48 includes a first branch 50 and a second branch 52 which extends noticeably at the first. The first branch 50 and the second 52 are connected by a central branch 54 which extends substantially perpendicular to the branches 50 and 52. The first branch 50 slides in the movement 2, in a direction substantially perpendicular to the plane of movement 2. The branch 50 actually slides in a clearance 53 (shown diagrammatically in the drawing) of the movement 2 which leads on the one hand into the part lower of movement 2 and other substantially in look of the pull tab 44 so that the end of the branch 50 is also located opposite the pull tab 44, and preferably, facing part of the pull tab 44 which is close to the projection 46. Such a clearance can, for example, be formed by clearance normally provided in conventional movements to insert a tool such as the tip of a screwdriver, to release the rod of the pull tab 44.

La deuxième branche 52 comprend une portion qui fait saillie à partir de la périphérie du mouvement 2 pour former un bras de préhension 54. Plus précisément, la portion 54 est constituée par la partie extrême ou extrémité libre de la branche 52 qui est repliée à 90 degrés vers l'extérieur du "U". Dans l'exemple illustré, la branche 52 s'étend à l'extérieur du mouvement 2, et le bras de préhension 55 est logé dans un dégagement latéral 56 ménagé dans la paroi intérieure 58 de la carrure 12 qui entoure le mouvement 2. De préférence, l'élément extracteur 48 est réalisé par un élément plié à section transversale constante et notamment par un fil métallique plié. Bien entendu, cet élément 48 pourrait, selon une variante, être également réalisé en matière plastique, par exemple par moulage.The second branch 52 includes a portion which makes protruding from the periphery of movement 2 for form a gripping arm 54. More specifically, the portion 54 is constituted by the extreme part or free end of branch 52 which is folded back at 90 degrees outward from the "U". In the example shown, the branch 52 extends outside of the movement 2, and the gripping arm 55 is housed in a lateral clearance 56 formed in the inner wall 58 of the middle part 12 which surrounds movement 2. Preferably, the element extractor 48 is produced by a section folded element constant transverse and in particular by a metallic wire folded. Of course, this element 48 could, according to a variant, also be made of plastic, by example by molding.

La branche centrale 54 reliant les branches 50 et 52 s'étend à l'extérieur du mouvement 2 dans une creusure 60 ménagée dans le fond 10 de la boíte 8. Plus précisément, la branche 54 repose sur le fond 62 de la creusure 60 lorsque l'élément extracteur 48 est dans sa position de repos (figure 1). Dans l'exemple illustré, la course C de l'élément extracteur 48 est déterminée par la distance séparant le fond 62 de la creusure 60 de la surface inférieure 64 du mouvement dans la mesure où la branche centrale 54 vient buter contre la surface inférieure 64 dans la position fonctionnelle (figure 2) de l'élément extracteur 48.The central branch 54 connecting the branches 50 and 52 extends outside movement 2 in a recess 60 formed in the bottom 10 of the box 8. More specifically, the branch 54 rests on the bottom 62 of the recess 60 when the extractor element 48 is in its position rest (Figure 1). In the example illustrated, the stroke C of the extractor element 48 is determined by the distance separating the bottom 62 of the recess 60 from the surface lower 64 of the movement as far as the branch central 54 abuts against the lower surface 64 in the functional position (figure 2) of the element extractor 48.

Bien entendu, cette course C sera déterminée différemment selon une variante de réalisation (non représentée) dans laquelle le mouvement 2 comprend, dans sa partie inférieure, une creusure ou une encoche dans laquelle s'étend au moins partiellement la branche centrale 54 dans la position fonctionnelle, et le cas échéant, dans la position de repos de l'élément extracteur 48. Selon cette variante, la profondeur de la creusure 60 peut être diminuée ou encore la creusure 60 peut être complètement supprimée, la course C étant alors déterminée par la hauteur de l'encoche ménagée dans la partie inférieure du mouvement 2 dans laquelle la branche 54 peut se loger dans la position fonctionnelle.Of course, this race C will be determined differently depending on an alternative embodiment (not shown) in which movement 2 comprises, in its lower part, a recess or a notch in which at least partially extends the branch central 54 in the functional position, and the case if necessary, in the rest position of the extractor element 48. According to this variant, the depth of the hollow 60 can be reduced or the recess 60 can be completely removed, the stroke C then being determined by the height of the notch in the part lower of movement 2 in which branch 54 can stay in the functional position.

Pour retirer la tige 26 et extraire le mouvement 2 de la boíte 8 de la pièce d'horlogerie on procède de la façon suivante. On retire de façon classique la lunette 20 et la glace 14 et le cas échéant le cadran 4 pour libérer l'accès au dégagement latéral 56. On introduit alors un outil, tel qu'une pince, dans celui-ci afin de saisir le bras 55 et d'exercer sur ce bras une traction selon la direction de la flèche F. Ce faisant, la branche 50 coulisse dans le dégagement du mouvement et l'extrémité de la branche 50 soulève la tirette 44 et la dégage de la gorge 40. A ce moment, il est possible de saisir la couronne 32 et de tirer la tige 26 dans le sens de la flèche T, qui est libérée de la tirette 44, longitudinalement hors de la boíte 8. Le mouvement 2 peut alors être extrait sans peine de la boíte 8 par des moyens classiques.To remove the rod 26 and extract the movement 2 from box 8 of the timepiece we proceed in the way next. The bezel 20 and the glass 14 and if necessary the dial 4 to release access to the lateral clearance 56. We then introduce a tool, such as pliers, therein to grip the arm 55 and to exert on this arm a traction according to the direction of arrow F. In doing so, branch 50 slides in the movement clearance and the end of the branch 50 raises the zipper 44 and releases it from the throat 40. At this time, it is possible to enter the crown 32 and pull the rod 26 in the direction of the arrow T, which is released from the pull tab 44, longitudinally out of the box 8. Movement 2 can then be easily extracted from the box 8 by means classics.

On notera que, de façon avantageuse, l'élément extracteur 48 peut être monté juste avant l'emboítage du mouvement 2 et ceci en introduisant simplement la branche 50 dans le dégagement approprié du mouvement 2 et donc sans la nécessité d'utiliser un outillage quelconque.It will be noted that, advantageously, the element extractor 48 can be mounted just before the fitting of the movement 2 and this by simply introducing the branch 50 in the appropriate clearance of movement 2 and therefore without the need to use any tool.

Claims (10)

  1. Timepiece (1) comprising :
    a case (8) having a back cover (10) and a middle part (12) in a single piece, closed by a watch glass (14),
    a clockwork movement (2) housed in said case (8),
    a control mechanism (24) acting on said movement (2),
    said control mechanism (24) comprising
    a control stem (26) which passes through said middle part (12), said stem (26) having a first end (30) which extends outside said case (8) and a second end (34) which extends inside said movement (2), and
    a pull-out piece (44), one part (46) of which is engaged in a groove (40) of the control stem (26), and
    an extractor device (48) enabling said pull-out piece part (46) to be pushed to free it from the control stem (26),
    characterized in that the extractor device (48) comprises an extractor element having a first branch (50) which slides inside the movement (2) in a direction (D) substantially perpendicular to the plane of the movement (2), one end of said first branch (50) being substantially facing the pull-out piece (44), and a second branch (52) which comprises a portion (55) projecting from the periphery of the movement (2) to form a gripping arm, said extractor element (48) being free to move between a first position called the rest position in which it does not act on the pull-out piece (44) and a second position called the operating position in which the end of the first branch (50) pushes the pull-out piece (44) out of the groove (40) of the control stem (26).
  2. Timepiece according to claim 1, characterized in that the extractor element (48) is U-shaped, said first branch (50) being connected via a central branch (54) to said second branch (52) which extends substantially parallel to the first branch (50) and which comprises a folded back portion (55) projecting from the periphery of the movement (2) to form said gripping arm.
  3. Timepiece according to claim 1 or 2, characterized in that said second branch (52) extends outside the movement (2).
  4. Timepiece according to one of claims 1 to 3, characterized in that said middle part (12) comprises, in its internal wall surrounding the movement, a lateral recess (56) in which is housed said folded back portion (55) of said second branch (52).
  5. Timepiece according to one of claims 2 to 3, characterized in that said central branch (54) is outside the movement (2) at least in said rest position and in that said back cover (10) comprises a recess (60) into which said central branch (54) extends in this position.
  6. Timepiece according to claim 5, characterized in that said central branch (54) rests on the bottom (62) of said recess (60) in said rest position of the extractor element (48).
  7. Timepiece according to claim 6, characterized in that the travel (C) of said extractor element (48) is determined by the distance separating the bottom of the recess (60) from a lower surface (64) of the movement (2) the central branch (54) then abutting the lower surface (64) of the movement (2) in said operating position of said extractor element (48).
  8. Timepiece according to any of the preceding claims, characterized in that said folded back portion (55) of the second branch (52) is formed by the free end of the latter, folded at 90 degrees.
  9. Timepiece according to one of claims 2 to 4, characterized in that the movement (2) comprises in its lower part a recess into which said central branch extends at least partially in said rest position.
  10. Timepiece according to one of the preceding claims, characterized in that said extractor element (48) is formed of a folded element of constant transversal section, in particular a folded metal wire.
EP96113245A 1995-09-04 1996-08-19 Timepiece including a control mechanism with stem and trigger piece Expired - Lifetime EP0762241B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
CH2504/95 1995-09-04
CH250495 1995-09-04
CH02504/95A CH688495B5 (en) 1995-09-04 1995-09-04 Timepiece including a pull rod and drive mechanism.

Publications (2)

Publication Number Publication Date
EP0762241A1 EP0762241A1 (en) 1997-03-12
EP0762241B1 true EP0762241B1 (en) 1999-08-04

Family

ID=4235291

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96113245A Expired - Lifetime EP0762241B1 (en) 1995-09-04 1996-08-19 Timepiece including a control mechanism with stem and trigger piece

Country Status (8)

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US (1) US5699327A (en)
EP (1) EP0762241B1 (en)
JP (1) JPH09113644A (en)
CN (1) CN1148193A (en)
CH (1) CH688495B5 (en)
DE (1) DE69603555T2 (en)
SG (1) SG66322A1 (en)
TW (1) TW301722B (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE60227640D1 (en) * 2002-04-09 2008-08-28 Girard Perregaux Sa Actuation mechanism for a clock
JP4714579B2 (en) * 2005-12-26 2011-06-29 セイコーインスツル株式会社 clock
CH705090A2 (en) * 2011-06-08 2012-12-14 Omega Sa Device for adjusting angular orientation of screw-down crown relative to middle of watch, has indexing unit arranged between cover and coupling member of crown, and magnetic return unit to rotatably connect cover and coupling member
EP2600214B1 (en) * 2011-12-01 2015-01-28 Agenhor SA Transmission mechanism between two portions of a control rod for a clock movement
EP2899598B1 (en) * 2014-01-23 2017-07-12 ETA SA Manufacture Horlogère Suisse Stem-operated mechanism with secure extraction
EP3333644A1 (en) * 2016-12-06 2018-06-13 ETA SA Manufacture Horlogère Suisse Device for controlling at least two electronic and/or mechanical functions of a portable object
EP3489760B1 (en) * 2017-11-22 2020-08-26 Harry Winston SA Timepiece case with push button
JP6835057B2 (en) * 2018-12-03 2021-02-24 カシオ計算機株式会社 Switch device and clock
EP3955066A1 (en) * 2020-08-13 2022-02-16 Patek Philippe SA Genève Watch comprising a control mechanism with setting stem and pull-out piece

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1129351A (en) * 1954-09-11 1957-01-21 Fontainemelon Horlogerie Winding mechanism and pull-tab time setting for timepiece
CH324260A (en) * 1955-10-19 1957-09-15 Piquerez Sa Ervin Watch with winding mechanism and pull-down time setting
CH356718A (en) * 1959-08-28 1961-08-31 Fontainemelon Horlogerie Winding and setting mechanism with pull tab, for timepiece
CH558039A (en) * 1972-04-26 1975-01-15 Wrist watch winding and correction stem - with resilient stop selectively coupled with winding stem to prevent its removal
CH640686B (en) * 1980-10-23 Ebauchesfabrik Eta Ag SLIDING CONTROL DEVICE FOR WATCH.
CH675811B5 (en) * 1989-04-12 1991-05-15 Ebauchesfabrik Eta Ag
US4979156A (en) * 1989-07-27 1990-12-18 Kester Lynn C Screw-on watch stem seal
US5598383A (en) * 1994-11-17 1997-01-28 Li; Tai H. Watch with double thread coupling device

Also Published As

Publication number Publication date
CH688495B5 (en) 1998-04-30
DE69603555T2 (en) 2000-03-23
JPH09113644A (en) 1997-05-02
CH688495GA3 (en) 1997-10-31
CN1148193A (en) 1997-04-23
US5699327A (en) 1997-12-16
SG66322A1 (en) 1999-07-20
EP0762241A1 (en) 1997-03-12
TW301722B (en) 1997-04-01
DE69603555D1 (en) 1999-09-09

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