EP2746873A1 - Modular assembly of a push button - Google Patents

Modular assembly of a push button Download PDF

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Publication number
EP2746873A1
EP2746873A1 EP12198852.1A EP12198852A EP2746873A1 EP 2746873 A1 EP2746873 A1 EP 2746873A1 EP 12198852 A EP12198852 A EP 12198852A EP 2746873 A1 EP2746873 A1 EP 2746873A1
Authority
EP
European Patent Office
Prior art keywords
pusher
axis
tube
assembly
functional module
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP12198852.1A
Other languages
German (de)
French (fr)
Other versions
EP2746873B1 (en
Inventor
Sébastien Briswalter
Simon Waeckerlin
Rico Walter
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.)
Meco SA
Original Assignee
Meco 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 Meco SA filed Critical Meco SA
Priority to EP12198852.1A priority Critical patent/EP2746873B1/en
Priority to TW102145591A priority patent/TWI542961B/en
Priority to US14/108,705 priority patent/US9268306B2/en
Priority to JP2013262419A priority patent/JP5887327B2/en
Priority to CN201310711461.5A priority patent/CN103885315B/en
Publication of EP2746873A1 publication Critical patent/EP2746873A1/en
Application granted granted Critical
Publication of EP2746873B1 publication Critical patent/EP2746873B1/en
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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
    • 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
    • G04B37/08—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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49579—Watch or clock making
    • Y10T29/49586—Watch or clock making having crown, stem, or pendent

Definitions

  • the present invention relates to an assembly method for a pusher, and a pusher adapted for the implementation of this method.
  • the patent CH692255 proposes a modular mounting solution, in which a pusher is integrally mounted before assembly to the middle part and then screwed from the inside into a watch case using a tool acting on the body of the pusher.
  • the disadvantage of this solution is that it only applies to screwed pushers, and whose head is necessarily cylindrical, especially when there is no degree of freedom in rotation between the body of push and the head.
  • an object of the present invention is to provide a new method of assembly for push which allows a quick assembly on the middle part with a limited number of assembly steps.
  • Another object of the present invention is to propose an alternative method for the modular assembly of a pusher in order to be able to test its functional characteristics autonomously before mounting on the middle part.
  • a method for the modular assembly of a pusher to a watch case characterized in that it comprises a preliminary step of assembling a sealed functional module, the functional module sealing member comprising a tube, an axis, at least one seal, and a return spring disposed between a first fixed stop member and a second movable stop member, and a first step of assembling the sealed functional module to the housing and finally a second step of assembling a pusher head to the sealed functional module.
  • a modular pusher adapted for the implementation of the modular assembly method according to the invention, comprising a tube, an axis, at least one seal, a return spring arranged between first and second fixed abutment element and a second movable abutment element, and a pusher head, characterized in that it comprises a sealed functional module, comprising the tube, the axis, at least one seal, and the spring of recall, and also means for assembling the sealed functional module to the pusher head and means for assembling the sealed functional module to the housing.
  • An advantage of the method of assembly proposed in the context of the present invention is that the latter can be used for a large number of push heads and for pushers having different strokes.
  • Another advantage of the assembly method of the present invention is that it allows the uniformization of a sealed and functional system for the pushers, independent of the shape of their head and that of the tube.
  • the figure 1 shows a pusher head 1 seen from above, of a quasi-parallelepipedal shape.
  • the illustrated quadrilateral corresponds to a rectangle slightly tapered to the left, that is to say whose left side is slightly smaller than the right side and therefore the two long sides not quite parallel.
  • This particular non-cylindrical head shape is used in the context of the implementation of a first preferred embodiment for the present invention.
  • the figure 2 shows a sagittal sectional view of the figure 1 , where we see the pusher head 1 assembled to a screwed pusher body to be mounted in a housing or a middle watch.
  • the pusher head 1 assembled to a screwed pusher body to be mounted in a housing or a middle watch.
  • the push body of the figure 2 consists of a tube 7 on which is arranged a thread 71 for its assembly to a housing 100, referenced later on the Figures 3 and 4 .
  • the housing 100 has corresponding assembly means in the form of a threaded hole 102, also visible in these figures.
  • an axis 8 at the lower end of which is a head forming first rotational drive 80 for the axis 8 and in which a tool can be inserted to do this.
  • the head of the shaft of a shape equivalent to a screw head, is slightly wider than the lower orifice 72 of the tube, so that the axis 8 is necessarily engaged in the tube 7 by this end until this head comes into abutment against the lower wall 73 of the tube 7.
  • the insert 2 comprises a thread 21 which engages on a first threaded end 81 of the axis 8 at its upper end.
  • the insert 2 also comprises a thread on its outer part, which is intended to cooperate with a threaded hole 11 of the pusher head 1 for its mounting.
  • the sealing of the pusher is optimized by the use of 2 superimposed joints 5, but separated by an intermediate ring 6 so that they can not be wound on one another.
  • FIGS. 3 and 4 illustrate different stages of assembly of the pusher of the figure 2 according to the invention.
  • the spring of 3 can be positioned between this first ring 4, and the insert 2, screwed to the upper end of the axis, which respectively form a first fixed stop member, and a second movable stop member for the return spring 3. All these elements form a functional and waterproof module 10.
  • This sealed functional module 10 has the advantage of being standardized for any form of pusher head.
  • the figure 3 shows this functional module 10 assembled to the housing 100, after a first assembly step E1 performed by the outside of the housing, here by screwing the thread 71 of the tube 7 in the threaded hole 102 of the housing 100.
  • the tube 7 may present special drive means, such as those illustrated in the context of the 2nd preferred embodiment described with the aid of figures 5 and 6a-d , in order to be able to engage a tool to perform the screwing operation.
  • the modular assembly method according to the invention proposes to screw the pusher head 1 on an integral element of the axis, here the insert 2, which is here threaded on its outer part, driving the axis 8 itself in rotation.
  • the insert 2 is then screwed into the tapped hole 11 of the pusher head 1, without acting directly on the pusher head 1 in rotation, but only axially by bringing it into abutment at the bottom of its housing 101. in the case 100.
  • the second assembly step E2 of the pusher head 1 to the pre-assembled waterproof functional module 10 is carried out from the inside of the casing 100 , thanks to the action of a tool (not shown) which drives the axis 8 in rotation by acting on first female-type rotating drive means 80, here formed by the head of the axis 8.
  • the head of the shaft is disengaged axially from the bottom wall of the tube 73 when the head of the pusher 1 is pushed to the bottom of its housing 101, which makes it possible to engage the tool more easily, and to prevent parallel rotation of the pusher head 1.
  • To prevent the insert 2 from unscrewing from the first threaded end 81 of the axis 8 during the mounting operation of the pusher head it will be possible to choose screw threads in the same direction for tapping the insert 21 and the thread of the insert 22, so that the screwing of the pusher head 1 on the insert 22 extends parallel to screwing the insert of the first threaded end 81 of the axis 8, until the bottom of the threaded hole 11 of the head of the pusher 1 reaches abutment on the insert 2.
  • this second step of assembling the pusher head 1 to the sealed functional module 10 does not allow to adjust the length of the stroke of the pusher, it may however be noted that the latter can be adjusted beforehand, for a head shape given crown 1, by acting directly for example on the height of the insert 2 and the axial positioning of the first threaded end 81 of the axis 8.
  • the stroke of the pusher can be adjusted by acting directly on the waterproof functional module 10 pre-assembled.
  • the figure 5 shows a pusher having another non-cylindrical head shape that can be used in the context of the modular assembly method according to the invention.
  • the pusher head 1 here has an arcuate shape and is provided with a bore 12 intended to cooperate with a pin or a pin (not shown) in the housing or middle part.
  • the cooperation of this piercing 12 with a housing stud is not only advantageous to correctly position the pusher angularly in its housing and guide the stroke of the head of the pusher 1 when the latter is depressed, but it is also advantageous for embodiments. wherein the pusher head 1 is not intended to be disposed in a very deep housing, and is relatively prominent out of the middle part.
  • the cooperation of the nipple with the piercing of the head also makes it possible, when the pusher is depressed, preferably as far as the stop on the middle part, to lock the head of the pusher 1 in rotation during the second assembly step. E2 to the functional and waterproof module 10 previously described.
  • the figure 6a shows a sagittal sectional view similar to the view of the figure 2 for the embodiment, along the cutting axis AA shown in FIG. figure 5 .
  • the majority of the components of the pusher are identical to those illustrated in FIG. figure 2 .
  • a major difference between this embodiment and that illustrated in FIG. figure 2 it consists in the fact that the axis 8 is no longer provided with a head made of material with its lower end, but a second thread.
  • the second threaded end of the shaft 82 is assembled to a nut 9 which is mounted as far as the stop on the lower face of the tube 73 to finalize the mounting of the shaft 8 in the tube 7, after the two seals 5 d sealing, the intermediate ring 6 between these two seals, the first ring 4 forming a first fixed stop for the return spring 3, and the return have been previously positioned.
  • a retaining circlip could be arranged in a groove arranged at the level of the lower end of the axis 8, instead of the nut 9 and the threaded end 82 of the axis.
  • the axis 8 also comprises a flange 2 ', which according to an alternative embodiment could however consist of a removable part distinct from the axis, and whose function is similar to that of the insert 2, namely to provide a movable stop for the return spring 3, and a stop for mounting the pusher head 1. It will therefore be understood that, contrary to the embodiment of the figure 2 the axis 8 is not here introduced by the lower orifice 72 of the tube 7, but by the upper orifice 74, and then fixed by means of the nut 9 on the lower face 74 of the tube 7.
  • rotational drive means 70 are arranged in the form of an octagonal portion of section, visible in detail on the Figure 6c which is a sectional view along the CC axis of the figure 3 , showing the tube 7, the axis 8 and a section of the return spring 3. These drive means make it easier to assemble the sealed functional module (not referenced in this figure for readability purposes), including all parts assembled to the tube except the pusher head 1, the housing during the first assembly step E1.
  • the principle is the same as for the previous embodiment, namely a step of screwing the pusher head 1 through the drive in rotation of the axis 8 by means of a tool inserted inside the housing 100 (not shown in FIGS. Figures 6a-c ).
  • this screwing is done here not on a part integral with the axis 8, as the insert 2 previously, but directly on the first threaded end of the axis 81.
  • the tool inserted inside the middle part is more complex because it engages either on first female type drive means 80, such as the screw head of the figure 2 , But on second male-type driving means 83 located beyond the nut 9, such as the octagonal section portion located at the lower end of the axis 8 and visible in detail on the figure 6b , which is a sectional view along the BB axis visible on the figure 6a also showing the tube 7 and its thread 71.
  • the lower end of the axis 8 on which is screwed the nut 9 is caused to disengage axially from the lower orifice 72 of the tube - as the head of the axis at the bottom of the figure 4 - And allows to expose this portion outside the tube 7 so that the latter can be grasped by a tool for driving the axis 8 in rotation. Since it is necessary to go over the nut 9 to enter this portion of octagonal section, the tool may consist for example of a fork. Although it is theoretically also possible to act directly on the nut 9 to drive the rotating shaft 8, it will be preferred to act on the second male-type rotating drive means 83 to avoid any risk of unintentional unscrewing. the nut 9.
  • the axis 8 can be screwed into the threaded hole 11 of the pusher head 1 until it abuts on the flange 2 '.
  • the threading 71 of the tube thus consists of first assembly means which will be used during the first assembly step E1, while respectively the external thread 22 of the insert 2, and the first threaded end 81 of axis 8 which engage in the threaded hole 11 of the pusher head 1, consist of second assembly means of the functional module 10 to the pusher head 1, used during the second assembly step E2.
  • the pusher head 1 could, instead of being screwed and require the introduction of a tool inside the housing to drive the axis 8 of the pusher in rotation, be driven directly by the outside on the functional and waterproof module already assembled to the housing.
  • a method of final assembly of the head would be suitable for example for the pusher shown in FIG. figure 2 , that is to say using an insert 2, devoid in this case of any thread on its outer periphery. Indeed such an insert has a relatively large lateral contact surface with the pusher head 1 to allow the application of sufficient frictional forces to retain the pusher head on the insert 2.
  • this method of alternative assembly presents advantage of being even faster, the second assembly step E2 being simplified, it has the disadvantage of not providing a removable connection between the pusher head and the functional module; moreover the strength of this connection is less, with the risk that the pusher head 1 can be torn off the middle after a certain time when the stresses of elastic deformations parts fade.
  • sections of the different drive means have been chosen preferably octagonal for reasons of standardization of the tools, but that any other adapted form (for example square, hexagonal, etc.) is also conceivable. .

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Automatic Assembly (AREA)
  • Electric Clocks (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Details Of Spanners, Wrenches, And Screw Drivers And Accessories (AREA)

Abstract

The method involves assembling a sealed functional module, where the module includes a tube (7), an axle (8), a sealing joint (5) i.e. O-ring and a return spring (3) placed between a fixed stop element and a movable stop element. The sealed functional module is assembled to a housing (100). A push button head (1) is assembled to the sealed functional module. The tube is screwed into the housing by outside during the assembly of the module by a rotational driving unit arranged on the tube. The push button head is screwed to an element secured to an axis. An independent claim is also included for a modular push button.

Description

La présente invention concerne un procédé d'assemblage pour un poussoir, ainsi qu'un poussoir adapté pour la mise en oeuvre de ce procédé.The present invention relates to an assembly method for a pusher, and a pusher adapted for the implementation of this method.

Pour le montage de poussoirs sur une carrure de montre, il est connu de fixer un corps de poussoir dans un logement, prévu en général sur la tranche du boîtier, puis de monter ensuite les autres éléments constitutifs du poussoir une fois que le corps du poussoir a été assemblé à la carrure par chassage ou vissage.For mounting pushpieces on a middle watch, it is known to fix a push body in a housing, generally provided on the edge of the housing, and then to mount the other components of the pusher once the body of the pusher was assembled to the middle part by driving or screwing.

Etant donné qu'il est nécessaire d'assembler chaque pièce du poussoir une à une sur la carrure hors d'un atelier dédié aux poussoirs, l'assemblage est d'une part relativement fastidieux, puisqu'il n'est pas réalisé par des spécialistes de ce type de pièces, et relativement long. D'autre part, aucune partie fonctionnelle n'étant pré-montée, il est impossible de tester le poussoir intégralement monté avant l'assemblage effectif à la carrure. Ainsi selon cette solution de montage les propriétés d'étanchéité et le réglage de la course du poussoir notamment ne peuvent pas être vérifiés de manière satisfaisante avant l'intégration au boîtier.Since it is necessary to assemble each piece of the pusher one by one on the middle part of a workshop dedicated to the pushers, the assembly is on the one hand relatively tedious, since it is not performed by specialists in this type of parts, and relatively long. On the other hand, no functional part being pre-assembled, it is impossible to test the fully mounted pusher before the actual assembly to the middle part. Thus according to this mounting solution the sealing properties and the adjustment of the stroke of the pusher in particular can not be satisfactorily verified before integration into the housing.

Pour simplifier le montage, il existe, dans le cadre de poussoirs vissés, des tubes pré-garnis des joints afin que la partie d'étanchéité soit pré-assemblée. Dans ce cas, le tube est vissé dans la carrure dans une première étape, puis l'axe est vissé ensuite par l'intérieur dans une deuxième étape après avoir positionné le ressort de rappel du poussoir et poussé la tête de poussoir en fond de course. Cette solution présente toutefois l'inconvénient de risquer de blesser les joints lors du montage de l'axe du poussoir, surtout lorsque celui-ci n'est pas fait par un spécialiste des poussoirs, et ne permet pas non plus de tester le poussoir au préalable en termes d'étanchéité et de course de fonctionnement.To simplify the assembly, there are, in the framework of screwed pushers, tubes pre-filled joints so that the sealing part is pre-assembled. In this case, the tube is screwed into the middle part in a first step, then the axis is then screwed in from the inside in a second step after positioning the return spring of the pusher and pushed the pusher head in the bottom of the race. . This solution, however, has the disadvantage of risking injury to the joints during assembly of the axis of the pusher, especially when it is not done by a specialist pushers, and also does not allow to test the push beforehand in terms of sealing and running stroke.

Afin de pallier les inconvénients liés à la livraison de pièces détachées pour les poussoirs avant leur montage sur la carrure, le brevet CH692255 propose une solution de montage modulaire, dans laquelle un poussoir est intégralement monté avant son assemblage à la carrure, puis vissé par l'intérieur dans une boîte de montre à l'aide d'un outil agissant sur le corps du poussoir. L'inconvénient de cette solution est qu'elle ne s'applique toutefois qu'à des poussoirs vissés, et dont la tête est nécessairement de forme cylindrique, notamment lorsqu'il n'y a aucun degré de liberté en rotation entre le corps de poussoir et la tête.In order to overcome the disadvantages associated with the delivery of spare parts for pushpieces before mounting them on the middle part, the patent CH692255 proposes a modular mounting solution, in which a pusher is integrally mounted before assembly to the middle part and then screwed from the inside into a watch case using a tool acting on the body of the pusher. The disadvantage of this solution is that it only applies to screwed pushers, and whose head is necessarily cylindrical, especially when there is no degree of freedom in rotation between the body of push and the head.

Il existe par conséquent un besoin pour une méthode d'assemblage exempte de ces limitations connues.There is therefore a need for an assembly method free of these known limitations.

En particulier, un but de la présente invention est de proposer une nouvelle méthode d'assemblage pour poussoir qui permette un montage rapide sur la carrure avec nombre restreint d'étapes d'assemblage.In particular, an object of the present invention is to provide a new method of assembly for push which allows a quick assembly on the middle part with a limited number of assembly steps.

Un autre but de la présente invention est de proposer une méthode alternative pour l'assemblage modulaire d'un poussoir afin de pouvoir tester ses caractéristiques fonctionnelles de façon autonome avant le montage sur la carrure.Another object of the present invention is to propose an alternative method for the modular assembly of a pusher in order to be able to test its functional characteristics autonomously before mounting on the middle part.

Ces buts sont atteints grâces à une méthode pour l'assemblage modulaire d'un poussoir à un boîtier de montre selon l'invention, caractérisée en ce qu'elle comprend une étape préliminaire d'assemblage d'un module fonctionnel étanche, le module fonctionnel étanche comprenant un tube, un axe, au moins un joint d'étanchéité, et un ressort de rappel disposé entre un premier élément de butée fixe et un deuxième élément de butée mobile, puis une première étape d'assemblage du module fonctionnel étanche au boîtier, et enfin une deuxième étape d'assemblage d'une tête de poussoir au module fonctionnel étanche.These aims are achieved thanks to a method for the modular assembly of a pusher to a watch case according to the invention, characterized in that it comprises a preliminary step of assembling a sealed functional module, the functional module sealing member comprising a tube, an axis, at least one seal, and a return spring disposed between a first fixed stop member and a second movable stop member, and a first step of assembling the sealed functional module to the housing and finally a second step of assembling a pusher head to the sealed functional module.

Ces buts sont également atteints grâce à un poussoir modulaire adapté pour la mise en oeuvre de la méthode d'assemblage modulaire selon l'invention, comprenant un tube, un axe, au moins un joint d'étanchéité, un ressort de rappel disposé entre premier élément de butée fixe et un deuxième élément de butée mobile, et une tête de poussoir, caractérisé en ce qu'il comprend un module fonctionnel étanche, comprenant le tube, l'axe, au moins un joint d'étanchéité, et le ressort de rappel, et par ailleurs des moyens d'assemblage du module fonctionnel étanche à la tête de poussoir et des moyens d'assemblage du module fonctionnel étanche au boîtier.These objects are also achieved by means of a modular pusher adapted for the implementation of the modular assembly method according to the invention, comprising a tube, an axis, at least one seal, a return spring arranged between first and second fixed abutment element and a second movable abutment element, and a pusher head, characterized in that it comprises a sealed functional module, comprising the tube, the axis, at least one seal, and the spring of recall, and also means for assembling the sealed functional module to the pusher head and means for assembling the sealed functional module to the housing.

Un avantage de la méthode d'assemblage proposée dans le cadre de la présente invention est que cette dernière peut être employée pour un grand nombre de têtes de poussoirs et pour des poussoirs présentant différentes courses.An advantage of the method of assembly proposed in the context of the present invention is that the latter can be used for a large number of push heads and for pushers having different strokes.

Un autre avantage de la méthode d'assemblage de la présente invention est qu'elle permet l'uniformisation d'un système étanche et fonctionnel pour les poussoirs, indépendant de la forme de leur tête et de celle du tube.Another advantage of the assembly method of the present invention is that it allows the uniformization of a sealed and functional system for the pushers, independent of the shape of their head and that of the tube.

Encore d'autres avantages de la solution proposée concernent le service après-vente, puisqu'il est désormais possible d'effectuer un changement de la tête pour un même corps pré-assemblé, ce qui permet par exemple une opération de rhabillage de la tête seule sans nécessiter un remplacement complet du poussoir. Similairement, il est également possible d'effectuer un démontage de la tête pour accéder à une partie étanchéité à remplacer lors d'un service après-vente sans devoir remplacer l'intégralité du poussoir.Still other advantages of the proposed solution concern the after-sales service, since it is now possible to make a change of the head for the same pre-assembled body, which allows for example a head dressing operation only without requiring a complete replacement of the pusher. Similarly, it is also possible to perform a disassembly of the head to access a sealing portion to be replaced during a after-sales service without having to replace the entire pusher.

D'autres caractéristiques et avantages de l'invention ressortiront plus clairement de la description détaillée et des dessins, dans lesquels:

  • la figure 1 présente une vue de dessus d'un poussoir selon un premier mode de réalisation préférentiel pour la mise en oeuvre de la présente invention;
  • la figure 2 présente une première vue en coupe sagittale du poussoir de la figure 1;
  • la figure 3 présente une deuxième vue en coupe sagittale du poussoir de la figure 2, une fois le premier module du poussoir monté dans la carrure;
  • la figure 4 présente une troisième vue en coupe sagittale du poussoir de la figure 3, lors du montage final de la tête de poussoir.
  • la figure 5 présente une vue de dessus d'un poussoir selon un deuxième mode de réalisation préférentiel pour la mise en oeuvre de la présente invention;
  • la figure 6A présente une première vue en coupe sagittale du poussoir de la figure 5, selon l'axe A-A de la figure 5;
  • la figure 6B présente une deuxième vue en coupe du poussoir de la figure 5, selon l'axe B-B de la figure 6A;
  • la figure 6C présente une troisième vue en coupe du poussoir de la figure 6A, selon l'axe C-C de la figure 6A
Other features and advantages of the invention will emerge more clearly from the detailed description and the drawings, in which:
  • the figure 1 shows a top view of a pusher according to a first preferred embodiment for the implementation of the present invention;
  • the figure 2 presents a first sagittal sectional view of the pusher of the figure 1 ;
  • the figure 3 presents a second sagittal sectional view of the pusher of the figure 2 once the first module of the pusher mounted in the middle part;
  • the figure 4 presents a third sagittal sectional view of the pusher of the figure 3 , during the final assembly of the pusher head.
  • the figure 5 shows a top view of a pusher according to a second preferred embodiment for the implementation of the present invention;
  • the Figure 6A presents a first sagittal sectional view of the pusher of the figure 5 , according to the AA axis of the figure 5 ;
  • the Figure 6B presents a second sectional view of the pusher of the figure 5 , along the BB axis of the Figure 6A ;
  • the Figure 6C presents a third sectional view of the pusher of the Figure 6A , along the CC axis of the Figure 6A

La figure 1 montre une tête de poussoir 1 vue de dessus, d'une forme quasi-parallélépipédique. Le quadrilatère illustré correspond à un rectangle légèrement effilé vers la gauche, c'est-à-dire dont le côté gauche est légèrement plus petit que le côté droit et donc les deux grands côtés pas tout à fait parallèles. Cette forme de tête particulière, non cylindrique, est utilisée dans le cadre de la mise en oeuvre d'un premier mode de réalisation préférentiel pour la présente invention.The figure 1 shows a pusher head 1 seen from above, of a quasi-parallelepipedal shape. The illustrated quadrilateral corresponds to a rectangle slightly tapered to the left, that is to say whose left side is slightly smaller than the right side and therefore the two long sides not quite parallel. This particular non-cylindrical head shape is used in the context of the implementation of a first preferred embodiment for the present invention.

La figure 2 montre une vue en coupe sagittale de la figure 1, où on voit la tête de poussoir 1 assemblée à un corps de poussoir vissé destiné à être monté dans un boîtier ou une carrure de montre. Bien que dans ce qui suit les modes de réalisation préférentiels de l'invention ne font intervenir que des poussoirs vissés, c'est-à-dire dont les corps de poussoir sont vissés dans le boîtier dans lequel ils sont destinés à être montés, on comprendra toutefois que l'invention s'applique également à des poussoirs chassés ou fixés de toute autre manière dans le boîtier.The figure 2 shows a sagittal sectional view of the figure 1 , where we see the pusher head 1 assembled to a screwed pusher body to be mounted in a housing or a middle watch. Although in what the preferred embodiments of the invention involve only screwed pushers, that is to say whose pusher bodies are screwed into the housing in which they are intended to be mounted, it will be understood however that the The invention also applies to pushers driven or otherwise fixed in the housing.

Le corps de poussoir de la figure 2 consiste en un tube 7 sur lequel est aménagé un filetage 71 en vue de son assemblage à un boîtier 100, référencé plus loin sur les figures 3 et 4. Dans ce cas, le boîtier 100 dispose de moyens d'assemblage correspondants sous la forme d'un trou taraudé 102, également visible sur ces figures. Dans le tube 7 est monté un axe 8, à l'extrémité inférieure duquel se trouve une tête formant des premiers d'entraînement en rotation 80 pour l'axe 8 et dans laquelle un outil peut être inséré pour ce faire. La tête de l'axe, d'une forme équivalente à une tête de vis, est légèrement plus large que l'orifice inférieur 72 du tube, de telle sorte que l'axe 8 est nécessairement engagé dans le tube 7 par cette extrémité jusqu'à ce que cette tête vienne en butée contre la paroi inférieure 73 du tube 7. La position illustrée par la figure 2 correspond à la position de repos du poussoir, où le ressort de rappel 3, introduit dans l'orifice supérieure du tube 7, tend à s'étendre entre une première butée fixe formée par une première bague 4 montée au dessus des joints d'étanchéité 5 de type O-Rings, et une deuxième butée mobile formée par l'insert 2 monté sur l'extrémité supérieure de l'axe 8. Selon ce mode de réalisation préférentiel, l'insert 2 comprend un taraudage 21 qui s'engage sur une première extrémité filetée 81 de l'axe 8 à son extrémité supérieure. L'insert 2 comprend également un filetage sur sa partie externe, qui est destinée à coopérer avec un trou taraudé 11 de la tête de poussoir 1 pour son montage. D'autres modes d'assemblage sont également envisageables, comme par exemple un chassage de l'insert sur l'extrémité de l'axe; toutefois, l'intérêt d'un assemblage par vissage comme représenté sur cette figure est qu'il est réversible, et permet donc de remplacer la tête de poussoir 1 de façon modulaire.The push body of the figure 2 consists of a tube 7 on which is arranged a thread 71 for its assembly to a housing 100, referenced later on the Figures 3 and 4 . In this case, the housing 100 has corresponding assembly means in the form of a threaded hole 102, also visible in these figures. In the tube 7 is mounted an axis 8, at the lower end of which is a head forming first rotational drive 80 for the axis 8 and in which a tool can be inserted to do this. The head of the shaft, of a shape equivalent to a screw head, is slightly wider than the lower orifice 72 of the tube, so that the axis 8 is necessarily engaged in the tube 7 by this end until this head comes into abutment against the lower wall 73 of the tube 7. The position illustrated by the figure 2 corresponds to the rest position of the pusher, where the return spring 3, introduced into the upper orifice of the tube 7, tends to extend between a first fixed stop formed by a first ring 4 mounted above the seals 5 type O-Rings, and a second movable stop formed by the insert 2 mounted on the upper end of the axis 8. According to this preferred embodiment, the insert 2 comprises a thread 21 which engages on a first threaded end 81 of the axis 8 at its upper end. The insert 2 also comprises a thread on its outer part, which is intended to cooperate with a threaded hole 11 of the pusher head 1 for its mounting. Other assembly methods are also conceivable, such as for example a driving of the insert on the end of the axis; however, the advantage of a screw connection as shown in this figure is that it is reversible, and thus allows to replace the pusher head 1 modularly.

Selon le mode de réalisation préférentiel de l'invention illustré par la figure 2, l'étanchéité du poussoir est optimisée par l'usage de 2 joints 5 superposés, mais séparés par une bague intermédiaire 6 afin qu'ils ne puissent pas s'enrouler l'un sur l'autre.According to the preferred embodiment of the invention illustrated by the figure 2 , the sealing of the pusher is optimized by the use of 2 superimposed joints 5, but separated by an intermediate ring 6 so that they can not be wound on one another.

Les figures 3 et 4 illustrent différentes étapes de montage du poussoir de la figure 2 selon l'invention. Une fois que l'axe 8 du poussoir a été introduit dans le tube 7 par l'orifice inférieur 72 après que les joints 5, la bague intermédiaire 6 et la première bague 4 qui les recouvre y ont été placés au préalable, le ressort de rappel 3 peut être positionné entre cette première bague 4, et l'insert 2, vissé à l'extrémité supérieure de l'axe, qui forment respectivement un premier élément de butée fixe, et un deuxième élément de butée mobile pour le ressort de rappel 3. Tous ces éléments forment un module fonctionnel et étanche 10. Ce module fonctionnel étanche 10 présente l'avantage de pouvoir être uniformisé pour n'importe quelle forme de tête de poussoir. La figure 3 montre ce module fonctionnel 10 assemblé au boîtier 100, après une première étape d'assemblage E1 effectuée par l'extérieur du boîtier, ici par vissage du filetage 71 du tube 7 dans le trou taraudé 102 du boîtier 100. Pour simplifier cette étape de montage, le tube 7 pourra présenter des moyens d'entraînement spéciaux, comme par exemple ceux illustrés dans le cadre du 2e mode de réalisation préférentiel décrit à l'aide des figures 5 et 6a-d, afin de pouvoir engager un outil pour effectuer l'opération de vissage.The Figures 3 and 4 illustrate different stages of assembly of the pusher of the figure 2 according to the invention. Once the axis 8 of the pusher has been introduced into the tube 7 through the lower orifice 72 after the seals 5, the intermediate ring 6 and the first ring 4 which covers them have been placed beforehand, the spring of 3 can be positioned between this first ring 4, and the insert 2, screwed to the upper end of the axis, which respectively form a first fixed stop member, and a second movable stop member for the return spring 3. All these elements form a functional and waterproof module 10. This sealed functional module 10 has the advantage of being standardized for any form of pusher head. The figure 3 shows this functional module 10 assembled to the housing 100, after a first assembly step E1 performed by the outside of the housing, here by screwing the thread 71 of the tube 7 in the threaded hole 102 of the housing 100. To simplify this assembly step the tube 7 may present special drive means, such as those illustrated in the context of the 2nd preferred embodiment described with the aid of figures 5 and 6a-d , in order to be able to engage a tool to perform the screwing operation.

Une fois la première étape d'assemblage E1 de ce module fonctionnel 10 au boîtier 100 a été effectuée, il s'agit désormais d'adjoindre encore la tête de poussoir 1 au module fonctionnel et étanche 10 pour finaliser le montage du poussoir. Lorsque la forme de la tête n'est pas cylindrique, et que le logement 101, visible sur la figure 3, a une forme correspondante, il est impossible de tourner la tête de poussoir 1 en rotation dans son logement 101. Pour pallier cet inconvénient, la méthode d'assemblage modulaire selon l'invention propose de visser la tête de poussoir 1 sur un élément solidaire de l'axe, ici l'insert 2, qui est ici fileté sur sa partie externe, en entraînant l'axe 8 lui-même en rotation. L'insert 2 est alors vissé dans le trou taraudé 11 de la tête de poussoir 1, sans que l'on agisse directement sur la tête de poussoir 1 en rotation, mais seulement axialement en l'amenant en butée au fond de son logement 101 dans le boîtier 100. Comme on peut le constater sur la figure 4, qui montre une vue en coupe des mêmes éléments que ceux illustrés à la figure 2, avec en plus le boîtier 100 et son trou taraudé 102 pour le vissage du tube 7, la deuxième étape d'assemblage E2 de la tête de poussoir 1 au module fonctionnel étanche 10 pré-monté s'effectue par l'intérieur du boîtier 100, grâce à l'action d'un outil (non représenté) qui vient entraîner l'axe 8 en rotation en agissant sur des premiers moyens d'entraînement en rotation 80 de type femelle, formés ici par la tête de l'axe 8. La tête de l'axe est dégagée axialement de la paroi inférieure du tube 73 lorsque la tête du poussoir 1 est poussée au fond de son logement 101, ce qui permet d'engager l'outil plus facilement, et d'empêcher parallèlement toute rotation de la tête de poussoir 1. Pour éviter que l'insert 2 ne se dévisse de la première extrémité filetée 81 de l'axe 8 lors de l'opération de montage de la tête de poussoir, on pourra choisir des pas de vis dans le même sens pour le taraudage de l'insert 21 et le filetage de l'insert 22, de telle sorte que le vissage de la tête de poussoir 1 sur l'insert 22 tende parallèlement à visser l'insert du la première extrémité filetée 81 de l'axe 8, jusqu'à ce que le fond du trou taraudé 11 de la tête du poussoir 1 arrive en butée sur l'insert 2.Once the first assembly step E1 of this functional module 10 to the housing 100 has been performed, it is now necessary to further add the pusher head 1 to the functional and sealed module 10 to finalize the mounting of the pusher. When the shape of the head is not cylindrical, and the housing 101, visible on the figure 3 , has a corresponding shape, it is impossible to rotate the pusher head 1 in rotation in its housing 101. To overcome this drawback, the modular assembly method according to the invention proposes to screw the pusher head 1 on an integral element of the axis, here the insert 2, which is here threaded on its outer part, driving the axis 8 itself in rotation. The insert 2 is then screwed into the tapped hole 11 of the pusher head 1, without acting directly on the pusher head 1 in rotation, but only axially by bringing it into abutment at the bottom of its housing 101. in the case 100. As can be seen from the figure 4 , which shows a sectional view of the same elements as those illustrated in figure 2 , in addition to the casing 100 and its tapped hole 102 for screwing the tube 7, the second assembly step E2 of the pusher head 1 to the pre-assembled waterproof functional module 10 is carried out from the inside of the casing 100 , thanks to the action of a tool (not shown) which drives the axis 8 in rotation by acting on first female-type rotating drive means 80, here formed by the head of the axis 8. The head of the shaft is disengaged axially from the bottom wall of the tube 73 when the head of the pusher 1 is pushed to the bottom of its housing 101, which makes it possible to engage the tool more easily, and to prevent parallel rotation of the pusher head 1. To prevent the insert 2 from unscrewing from the first threaded end 81 of the axis 8 during the mounting operation of the pusher head, it will be possible to choose screw threads in the same direction for tapping the insert 21 and the thread of the insert 22, so that the screwing of the pusher head 1 on the insert 22 extends parallel to screwing the insert of the first threaded end 81 of the axis 8, until the bottom of the threaded hole 11 of the head of the pusher 1 reaches abutment on the insert 2.

Bien que cette deuxième étape d'assemblage de la tête de poussoir 1 au module fonctionnel étanche 10 ne permette pas de régler la longueur de la course du poussoir, on pourra toutefois noter que cette dernière peut être ajustée au préalable, pour une forme de tête de couronne donnée 1, en agissant directement par exemple sur la hauteur de l'insert 2 et le positionnement axial de la première extrémité filetée 81 de l'axe 8. En d'autres termes, la course du poussoir peut être ajustée en agissant directement sur le module fonctionnel étanche 10 pré-assemblé.Although this second step of assembling the pusher head 1 to the sealed functional module 10 does not allow to adjust the length of the stroke of the pusher, it may however be noted that the latter can be adjusted beforehand, for a head shape given crown 1, by acting directly for example on the height of the insert 2 and the axial positioning of the first threaded end 81 of the axis 8. In other words, the stroke of the pusher can be adjusted by acting directly on the waterproof functional module 10 pre-assembled.

La figure 5 montre un poussoir ayant une autre forme de tête non cylindrique qui pouvant être utilisée dans le cadre de la méthode d'assemblage modulaire selon l'invention. La tête de poussoir 1 présente ici une forme arquée et est pourvue d'un perçage 12 destiné à coopérer avec un téton ou une goupille (non représenté) dans le boîtier ou la carrure. La coopération de ce perçage 12 avec un téton du boîtier est non seulement avantageuse pour positionner correctement angulairement le poussoir dans son logement et guider la course de la tête du poussoir 1 lorsque cette dernière est enfoncée, mais elle est également avantageuse pour des modes de réalisation dans lesquels la tête de poussoir 1 n'est pas destinée à être disposée dans un logement très profond, et est relativement proéminente hors de la carrure. Dans ce cas, la coopération du téton avec le perçage de la tête permet également, lorsque le poussoir est enfoncé, de préférence jusqu'en butée sur la carrure, de verrouiller la tête du poussoir 1 en rotation lors de la deuxième étape d'assemblage E2 au module fonctionnel et étanche 10 décrite précédemment.The figure 5 shows a pusher having another non-cylindrical head shape that can be used in the context of the modular assembly method according to the invention. The pusher head 1 here has an arcuate shape and is provided with a bore 12 intended to cooperate with a pin or a pin (not shown) in the housing or middle part. The cooperation of this piercing 12 with a housing stud is not only advantageous to correctly position the pusher angularly in its housing and guide the stroke of the head of the pusher 1 when the latter is depressed, but it is also advantageous for embodiments. wherein the pusher head 1 is not intended to be disposed in a very deep housing, and is relatively prominent out of the middle part. In this case, the cooperation of the nipple with the piercing of the head also makes it possible, when the pusher is depressed, preferably as far as the stop on the middle part, to lock the head of the pusher 1 in rotation during the second assembly step. E2 to the functional and waterproof module 10 previously described.

La figure 6a montre une vue en coupe sagittale similaire à la vue de la figure 2 pour le mode de réalisation, selon l'axe de coupe A-A représenté à la figure 5.The figure 6a shows a sagittal sectional view similar to the view of the figure 2 for the embodiment, along the cutting axis AA shown in FIG. figure 5 .

Sur cette figure, la majorité des composants du poussoir sont identiques à ceux illustrés sur la figure 2. Une différence majeure entre ce mode de réalisation et celui illustré à la figure 2 consiste toutefois en le fait que l'axe 8 n'est plus pourvu d'une tête venant de matière avec son extrémité inférieure, mais d'un deuxième filetage. La deuxième extrémité filetée de l'axe 82 est assemblée à un écrou 9 qui est monté jusqu'en butée sur la face inférieure du tube 73 pour finaliser le montage de l'axe 8 dans le tube 7, après que les deux joints 5 d'étanchéité, la bague intermédiaire 6 entre ces deux joints, la première bague 4 formant une première butée fixe pour le ressort de rappel 3, et le rappel aient été préalablement positionnés. Selon un mode de réalisation alternatif non représenté, un circlip de retenue pourrait être disposé dans une gorge aménagée au niveau de l'extrémité inférieure de l'axe 8, en lieu et place de l'écrou 9 et de l'extrémité filetée 82 de l'axe. Un avantage de cette solution serait de faciliter le démontage de l'axe 8 lors d'un service après-vente, mais un inconvénient serait de ne pas pouvoir utiliser le circlip comme moyen d'entraînement en rotation de l'axe 8, contrairement à l'écrou 9. L'axe 8 comprend également une collerette 2', qui selon un mode de réalisation alternatif pourrait toutefois consister en une pièce amovible distincte de l'axe, et dont la fonction est similaire à celle de l'insert 2, à savoir de fournir une butée mobile pour le ressort de rappel 3, et une butée pour le montage de la tête de poussoir 1. On comprendra donc que, contrairement au mode de réalisation de la figure 2, l'axe 8 n'est pas ici introduit par l'orifice inférieur 72 du tube 7, mais par l'orifice supérieur 74, et ensuite fixé à l'aide de l'écrou 9 sur la face inférieure 74 du tube 7. Sur le haut du tube 7, des moyens d'entraînement en rotation 70 sont agencés sous la forme d'une portion de section octogonale, visible en détail sur la figure 6c qui est une vue en coupe selon l'axe C-C de la figure 3, montrant le tube 7, l'axe 8 et une section du ressort de rappel 3. Ces moyens d'entraînement permettent de faciliter l'assemblage du module fonctionnel étanche (non référencé sur cette figure pour des questions de lisibilité), comprenant toutes les pièces assemblées au tube sauf la tête de poussoir 1, au boîtier lors de la première étape d'assemblage E1.In this figure, the majority of the components of the pusher are identical to those illustrated in FIG. figure 2 . A major difference between this embodiment and that illustrated in FIG. figure 2 However, it consists in the fact that the axis 8 is no longer provided with a head made of material with its lower end, but a second thread. The second threaded end of the shaft 82 is assembled to a nut 9 which is mounted as far as the stop on the lower face of the tube 73 to finalize the mounting of the shaft 8 in the tube 7, after the two seals 5 d sealing, the intermediate ring 6 between these two seals, the first ring 4 forming a first fixed stop for the return spring 3, and the return have been previously positioned. According to an alternative embodiment not shown, a retaining circlip could be arranged in a groove arranged at the level of the lower end of the axis 8, instead of the nut 9 and the threaded end 82 of the axis. An advantage of this solution would be to facilitate disassembly of the axis 8 during an after-sales service, but a drawback would be that it could not be possible to use the circlip as a means of driving the axis 8 in rotation, unlike the nut 9. The axis 8 also comprises a flange 2 ', which according to an alternative embodiment could however consist of a removable part distinct from the axis, and whose function is similar to that of the insert 2, namely to provide a movable stop for the return spring 3, and a stop for mounting the pusher head 1. It will therefore be understood that, contrary to the embodiment of the figure 2 the axis 8 is not here introduced by the lower orifice 72 of the tube 7, but by the upper orifice 74, and then fixed by means of the nut 9 on the lower face 74 of the tube 7. At the top of the tube 7, rotational drive means 70 are arranged in the form of an octagonal portion of section, visible in detail on the Figure 6c which is a sectional view along the CC axis of the figure 3 , showing the tube 7, the axis 8 and a section of the return spring 3. These drive means make it easier to assemble the sealed functional module (not referenced in this figure for readability purposes), including all parts assembled to the tube except the pusher head 1, the housing during the first assembly step E1.

Lors de la deuxième étape d'assemblage E2 de la tête de poussoir 1 au module fonctionnel étanche 10, le principe est le même que pour le mode de réalisation précédent, à savoir une étape de vissage de la tête de poussoir 1 grâce l'entraînement en rotation de l'axe 8 par l'intermédiaire d'un outil inséré à l'intérieur du boîtier 100 (non représenté sur les figures 6a-c). Toutefois, ce vissage s'effectue ici non pas sur une pièce solidaire de l'axe 8, comme l'insert 2 précédemment, mais directement sur la première extrémité filetée de l'axe 81. Par ailleurs, une autre différence avec le mode de réalisation précédent est que l'outil inséré à l'intérieur de la carrure est plus complexe, car il s'engage non plus sur des premiers moyens d'entraînement de type femelle 80, comme la tête de vis de la figure 2, mais sur des deuxièmes moyens d'entraînement de type mâle 83 situés au-delà de l'écrou 9, comme la portion de section octogonale située au niveau de l'extrémité inférieure de l'axe 8 et visible en détail sur la figure 6b, qui est une vue en coupe selon l'axe B-B visible sur la figure 6a montrant également le tube 7 et son filetage 71. En pressant sur la tête de poussoir 1 lors de la deuxième étape d'assemblage E2 de la tête de poussoir 1 au module fonctionnel étanche 10, l'extrémité inférieure de l'axe 8 sur laquelle est vissé l'écrou 9 est amenée à se dégager axialement de l'orifice inférieur 72 du tube - comme la tête de l'axe au bas de la figure 4 - et permet d'exposer cette portion en dehors du tube 7 afin que cette dernière puisse être saisie par un outil pour entraîner l'axe 8 en rotation. Etant donné qu'il faut passer par-dessus l'écrou 9 pour saisir cette portion de section octogonale, l'outil pourra consister par exemple en une fourche. Bien qu'il soit théoriquement aussi possible d'agir directement sur l'écrou 9 pour entraîner l'axe en rotation 8, on préférera agir sur les deuxièmes moyens d'entraînement en rotation 83 de type mâle pour éviter tout risque de dévissage involontaire de l'écrou 9.During the second assembly step E2 of the pusher head 1 to the sealed functional module 10, the principle is the same as for the previous embodiment, namely a step of screwing the pusher head 1 through the drive in rotation of the axis 8 by means of a tool inserted inside the housing 100 (not shown in FIGS. Figures 6a-c ). However, this screwing is done here not on a part integral with the axis 8, as the insert 2 previously, but directly on the first threaded end of the axis 81. Moreover, another difference with the method of previous embodiment is that the tool inserted inside the middle part is more complex because it engages either on first female type drive means 80, such as the screw head of the figure 2 , But on second male-type driving means 83 located beyond the nut 9, such as the octagonal section portion located at the lower end of the axis 8 and visible in detail on the figure 6b , which is a sectional view along the BB axis visible on the figure 6a also showing the tube 7 and its thread 71. By pressing on the pusher head 1 during the second assembly step E2 of the pusher head 1 to the sealed functional module 10, the lower end of the axis 8 on which is screwed the nut 9 is caused to disengage axially from the lower orifice 72 of the tube - as the head of the axis at the bottom of the figure 4 - And allows to expose this portion outside the tube 7 so that the latter can be grasped by a tool for driving the axis 8 in rotation. Since it is necessary to go over the nut 9 to enter this portion of octagonal section, the tool may consist for example of a fork. Although it is theoretically also possible to act directly on the nut 9 to drive the rotating shaft 8, it will be preferred to act on the second male-type rotating drive means 83 to avoid any risk of unintentional unscrewing. the nut 9.

Lors de cette deuxième étape d'assemblage de la tête de poussoir 1 au module fonctionnel étanche 10, l'axe 8 peut être vissé dans le trou taraudé 11 de la tête de poussoir 1 jusqu'à venir en butée sur la collerette 2'.During this second step of assembling the pusher head 1 to the sealed functional module 10, the axis 8 can be screwed into the threaded hole 11 of the pusher head 1 until it abuts on the flange 2 '.

L'avantage de la solution modulaire d'assemblage proposée est qu'il permet d'assembler plus rapidement tout type de poussoir, en assemblant tout d'abord un module fonctionnel et déjà étanche par l'extérieur, puis n'importe quelle forme de tête ensuite par l'intérieur, sans remettre en cause les propriétés fonctionnelles, comme par exemple la longueur de la course du poussoir, et d'étanchéité, qui ont pu être testées dans un atelier dédié. Dans les deux modes de réalisation décrits, le filetage 71 du tube consiste ainsi en des premiers moyens d'assemblage qui seront utilisés lors de la première étape d'assemblage E1, tandis que respectivement le filetage externe 22 de l'insert 2, et la première extrémité filetée 81 de l'axe 8 qui viennent s'engager dans le trou taraudé 11 de la tête de poussoir 1, consistent en des deuxièmes moyens d'assemblage du module fonctionnel 10 à la tête de poussoir 1, utilisés lors de la deuxième étape E2 d'assemblage.The advantage of the modular assembly solution proposed is that it allows to assemble faster any type of pusher, first assembling a functional module and already sealed from the outside, then any form of head then from the inside, without questioning the functional properties, such as the length of the stroke of the pusher, and sealing, which could be tested in a dedicated workshop. In the two embodiments described, the threading 71 of the tube thus consists of first assembly means which will be used during the first assembly step E1, while respectively the external thread 22 of the insert 2, and the first threaded end 81 of axis 8 which engage in the threaded hole 11 of the pusher head 1, consist of second assembly means of the functional module 10 to the pusher head 1, used during the second assembly step E2.

Selon un mode de réalisation alternatif, la tête de poussoir 1 pourrait, au lieu d'être vissée et nécessiter l'introduction d'un outil à l'intérieur du boîtier pour entraîner l'axe 8 du poussoir en rotation, être chassée directement par l'extérieur sur le module fonctionnel et étanche déjà assemblé au boîtier. Une telle méthode d'assemblage final de la tête serait adaptée par exemple pour le poussoir représenté à la figure 2, c'est-à-dire utilisant un insert 2, dépourvu dans ce cas de tout filetage sur son pourtour externe. En effet un tel insert présente une surface de contact latérale relativement grande avec la tête de poussoir 1 pour permettre l'application de forces de friction suffisantes pour retenir la tête de poussoir sur l'insert 2. Si cette méthode d'assemblage alternative présente l'avantage d'être encore plus rapide, la deuxième étape d'assemblage E2 étant simplifiée, elle présente par contre l'inconvénient de ne pas fournir une liaison amovible entre la tête de poussoir et le module fonctionnel; par ailleurs la force de cette liaison est moindre, avec le risque que la tête de poussoir 1 puisse être arrachée de la carrure après un certain temps lorsque les contraintes de déformations élastiques des pièces s'estompent.According to an alternative embodiment, the pusher head 1 could, instead of being screwed and require the introduction of a tool inside the housing to drive the axis 8 of the pusher in rotation, be driven directly by the outside on the functional and waterproof module already assembled to the housing. Such a method of final assembly of the head would be suitable for example for the pusher shown in FIG. figure 2 , that is to say using an insert 2, devoid in this case of any thread on its outer periphery. Indeed such an insert has a relatively large lateral contact surface with the pusher head 1 to allow the application of sufficient frictional forces to retain the pusher head on the insert 2. If this method of alternative assembly presents advantage of being even faster, the second assembly step E2 being simplified, it has the disadvantage of not providing a removable connection between the pusher head and the functional module; moreover the strength of this connection is less, with the risk that the pusher head 1 can be torn off the middle after a certain time when the stresses of elastic deformations parts fade.

L'homme du métier comprendra par ailleurs que les sections des différents moyens d'entraînement ont été choisis de préférence octogonaux pour des raisons de standardisation des outils, mais que toute autre forme adaptée (par exemple carrée, hexagonale, etc.) est également envisageable.Those skilled in the art will also understand that the sections of the different drive means have been chosen preferably octagonal for reasons of standardization of the tools, but that any other adapted form (for example square, hexagonal, etc.) is also conceivable. .

Claims (12)

Méthode pour l'assemblage modulaire d'un poussoir à un boîtier de montre (100), caractérisée en ce qu'elle comprend une étape préliminaire d'assemblage d'un module fonctionnel étanche (10), ledit module fonctionnel étanche (10) comprenant un tube (7), un axe (8), au moins un joint d'étanchéité (5), et un ressort de rappel (3) disposé entre un premier élément de butée fixe et un deuxième élément de butée mobile, puis une première étape d'assemblage (E1) dudit module fonctionnel étanche (10) audit boîtier (100), et enfin une deuxième étape d'assemblage (E2) d'une tête de poussoir (1) audit module fonctionnel étanche (10).Method for the modular assembly of a pusher to a watch case (100), characterized in that it comprises a preliminary step of assembling a sealed functional module (10), said sealed functional module (10) comprising a tube (7), an axis (8), at least one seal (5), and a return spring (3) disposed between a first fixed abutment member and a second movable abutment member, and then a first assembly step (E1) of said sealed functional module (10) to said housing (100), and finally a second assembly step (E2) of a pusher head (1) to said sealed functional module (10). Méthode pour l'assemblage modulaire d'un poussoir selon la revendication 1, caractérisée en ce que ledit tube (7) est vissé par l'extérieur audit boîtier (100) lors de ladite première étape d'assemblage (E1) à l'aide de moyens d'entraînement en rotation (70) agencés sur ledit tube (7).Method for the modular assembly of a pusher according to claim 1, characterized in that said tube (7) is screwed from outside to said casing (100) during said first assembly step (E1) using rotary drive means (70) arranged on said tube (7). Méthode pour l'assemblage modulaire d'un poussoir selon l'une des revendications précédentes, caractérisée en ce que ladite deuxième étape d'assemblage (E2) comprend une étape de vissage de ladite tête de poussoir (1) à un élément solidaire dudit axe (8).Method for the modular assembly of a pusher according to one of the preceding claims, characterized in that said second assembly step (E2) comprises a step of screwing said pusher head (1) to an element integral with said axis (8). Méthode pour l'assemblage modulaire d'un poussoir selon la revendication 3, le vissage étant réalisé grâce à l'insertion d'un outil à l'intérieur dudit boîtier de montre (100) pour entraîner ledit axe (8) en rotation.Method for the modular assembly of a pusher according to claim 3, the screwing being achieved through the insertion of a tool inside said watch case (100) for driving said axis (8) in rotation. Méthode pour l'assemblage modulaire d'un poussoir selon la revendication 4, l'outil agissant sur des premiers moyens d'entraînement en rotation de l'axe (80) de type femelle, ou des deuxièmes moyens d'entraînement de type mâle (83).Method for the modular assembly of a pusher according to claim 4, the tool acting on first means for driving in rotation the female-type axis (80), or second male-type drive means ( 83). Méthode pour l'assemblage modulaire d'un poussoir selon l'une des revendications 3 à 5, caractérisée en ce que ladite tête de poussoir (1) est poussée au fond de son logement (101) lors de ladite deuxième étape d'assemblage (E2).Method for the modular assembly of a pusher according to one of claims 3 to 5, characterized in that said pusher head (1) is pushed to the bottom of its housing (101) during said second assembly step (E2). Méthode pour l'assemblage modulaire d'un poussoir selon l'une des revendications 1 ou 2, caractérisée en ce que la tête de poussoir (1) est chassée sur un élément solidaire dudit axe (8) lors de ladite deuxième étape d'assemblage (E2).Method for the modular assembly of a pusher according to one of claims 1 or 2, characterized in that the pusher head (1) is driven on an element secured to said axis (8) during said second assembly step (E2). Poussoir modulaire comprenant un tube (7), un axe (8), au moins un joint d'étanchéité (5), un ressort de rappel (3) disposé entre un premier élément de butée fixe et un deuxième élément de butée mobile, et une tête de poussoir (1), caractérisé en ce qu'il comprend un module fonctionnel étanche (10), ledit module fonctionnel étanche (10) comprenant ledit tube (7), ledit axe (8), ledit au moins un joint d'étanchéité (5), ledit ressort de rappel (3), ledit premier élément de butée fixe et ledit deuxième élément de butée mobile, et par ailleurs des premiers moyens d'assemblage dudit module fonctionnel étanche (10) audit boîtier (100) et des deuxièmes moyens d'assemblage dudit module fonctionnel étanche (10) à ladite tête de poussoir (1).Modular plunger comprising a tube (7), an axis (8), at least one seal (5), a return spring (3) disposed between a first fixed abutment element and a second movable abutment element, and a pusher head (1), characterized in that it comprises a sealed functional module (10), said sealed functional module (10) comprising said tube (7), said axis (8), said at least one gasket sealing (5), said return spring (3), said first fixed abutment member and said second movable abutment member, and also first means for assembling said sealed functional module (10) to said housing (100) and second means for assembling said sealed functional module (10) to said pusher head (1). Poussoir selon la revendication 8, caractérisé en ce que le tube (7) comprend des moyens d'entraînement en rotation (700) sous forme d'une portion section octogonale pour faciliter son vissage dans ledit boîtier (100).Pusher according to claim 8, characterized in that the tube (7) comprises rotary drive means (700) in the form of an octagonal section portion to facilitate its screwing into said housing (100). Poussoir modulaire selon la revendication 9, caractérisé en ce que ledit axe (8) du poussoir comprend une première extrémité filetée (81), ladite tête de poussoir (1) étant vissée à ladite première extrémité filetée (81) ou au filetage externe (22) d'un insert (2) vissé à ladite première extrémité filetée (81).Modular plunger according to claim 9, characterized in that said axis (8) of the pusher comprises a first threaded end (81), said pusher head (1) being screwed to said first threaded end (81) or to the external thread (22). ) an insert (2) screwed to said first threaded end (81). Poussoir modulaire selon l'une des revendications 8 à 10, caractérisé en ce que ledit axe (8) comprend une deuxième extrémité filetée (82) pour la fixation dudit axe (8) audit tube (7) et des deuxièmes moyens d'entraînement de type mâle (83) sous forme d'une portion de section octogonale pour pouvoir entraîner ledit axe (8) en rotation.Modular plunger according to one of claims 8 to 10, characterized in that said axis (8) comprises a second threaded end (82) for fixing said axis (8) to said tube (7) and second male type drive means (83) in the form of an octagonal section portion to be able to drive said axis (8) in rotation. Poussoir modulaire selon l'une des revendications 8 à 11, ladite première butée fixe étant formée par une première bague (4) de recouvrant ledit joint (5), et ladite deuxième butée mobile étant formée par un insert (2) vissé à ladite première extrémité ou une collerette (2') solidaire dudit axe.Modular plunger according to one of claims 8 to 11, said first fixed stop being formed by a first ring (4) of covering said seal (5), and said second movable stop being formed by an insert (2) screwed to said first end or a flange (2 ') integral with said axis.
EP12198852.1A 2012-12-21 2012-12-21 Modular assembly of a push button Active EP2746873B1 (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
EP12198852.1A EP2746873B1 (en) 2012-12-21 2012-12-21 Modular assembly of a push button
TW102145591A TWI542961B (en) 2012-12-21 2013-12-11 Modular assembly of a pusher
US14/108,705 US9268306B2 (en) 2012-12-21 2013-12-17 Modular assembly of a pusher
JP2013262419A JP5887327B2 (en) 2012-12-21 2013-12-19 Pusher modular assembly method and modular pusher
CN201310711461.5A CN103885315B (en) 2012-12-21 2013-12-20 The modular assembling of impeller

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EP12198852.1A EP2746873B1 (en) 2012-12-21 2012-12-21 Modular assembly of a push button

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EP2746873A1 true EP2746873A1 (en) 2014-06-25
EP2746873B1 EP2746873B1 (en) 2017-11-15

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US (1) US9268306B2 (en)
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JP (1) JP5887327B2 (en)
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Also Published As

Publication number Publication date
JP5887327B2 (en) 2016-03-16
JP2014122899A (en) 2014-07-03
CN103885315A (en) 2014-06-25
US9268306B2 (en) 2016-02-23
TWI542961B (en) 2016-07-21
CN103885315B (en) 2018-02-02
TW201439692A (en) 2014-10-16
US20140177404A1 (en) 2014-06-26
EP2746873B1 (en) 2017-11-15

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