EP1406132A1 - Coupling mechanism for a chronographe - Google Patents
Coupling mechanism for a chronographe Download PDFInfo
- Publication number
- EP1406132A1 EP1406132A1 EP02079166A EP02079166A EP1406132A1 EP 1406132 A1 EP1406132 A1 EP 1406132A1 EP 02079166 A EP02079166 A EP 02079166A EP 02079166 A EP02079166 A EP 02079166A EP 1406132 A1 EP1406132 A1 EP 1406132A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- clutch
- spring
- control lever
- board
- mechanism according
- 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
Links
- 230000008878 coupling Effects 0.000 title 1
- 238000010168 coupling process Methods 0.000 title 1
- 238000005859 coupling reaction Methods 0.000 title 1
- 125000006850 spacer group Chemical group 0.000 claims description 7
- 238000006073 displacement reaction Methods 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 description 5
- 230000000903 blocking effect Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 230000001186 cumulative effect Effects 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G04—HOROLOGY
- G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
- G04B19/00—Indicating the time by visual means
- G04B19/02—Back-gearing arrangements between gear train and hands
-
- G—PHYSICS
- G04—HOROLOGY
- G04F—TIME-INTERVAL MEASURING
- G04F7/00—Apparatus for measuring unknown time intervals by non-electric means
- G04F7/04—Apparatus for measuring unknown time intervals by non-electric means using a mechanical oscillator
- G04F7/08—Watches or clocks with stop devices, e.g. chronograph
- G04F7/0823—Watches or clocks with stop devices, e.g. chronograph with couplings between the chronograph mechanism and the base movement
- G04F7/0828—Watches or clocks with stop devices, e.g. chronograph with couplings between the chronograph mechanism and the base movement acting in the plane of the movement
-
- G—PHYSICS
- G04—HOROLOGY
- G04F—TIME-INTERVAL MEASURING
- G04F7/00—Apparatus for measuring unknown time intervals by non-electric means
- G04F7/04—Apparatus for measuring unknown time intervals by non-electric means using a mechanical oscillator
- G04F7/08—Watches or clocks with stop devices, e.g. chronograph
Definitions
- the present invention relates to a chronograph clutch mechanism by means of a control lever designed on the one hand to avoid a blockage when moves from a stop position or a chronograph position to zero at a position on the other hand to precisely adjust the force exerted by the end of the lever by resorbing somehow the inevitable manufacturing tolerances at level of moving parts constituting said clutch control.
- FIGS. 1 and 2 schematically represent in plan and in cuts a clutch control in the running chronograph position.
- the clutch is actuated by a circular cam 1 having outside a drive toothing 3 on which acts a lever of actuation actuated by a pusher (not shown), said cam 1 being maintained in a determined position by means of a jumper 5.
- the cam 1 comprises inside a second control gear 2 whose teeth separating two hollows successive 4 teeth are truncated and have a flat surface 6.
- the teeth 3 has twice as many teeth as the internal toothing 2, so that the training of a step by actuation of a push button leads successively a hollow 4 and a flat 6 opposite a reference position determined.
- the clutch control 10 is constituted by a lever having basically three concurrent arms.
- a first arm 11 has its end pivoted in 12 in the plate 7 or in a plate of mechanism 8.
- a second arm 13 has at its end a tooth 14a held in abutment on a flat part 6 of the internal toothing of control 2 by a return spring 9 in abutment on a part 14
- a third flexible arm 15 has at its end a fork 16, preceded by a V-fold 18 having a plane 18a inclined against an edge 8a of 8.
- the object of the invention is therefore to remedy the two major drawbacks of the above-mentioned prior art by providing a chronograph watch having a clutch that is both reliable and easy to handle, and easily be adjusted at the end of the set-up to take into account the cumulative effect of manufacturing tolerances.
- the invention relates to a clutch mechanism of chronograph by means of a fork which controls the axial displacement of a clutch wheel to bring it to friction with an intermediate wheel second, or on the contrary to remove it from the force of a return spring.
- This fork is operated by a control lever which is reciprocated, but according to a first feature of the invention said fork is independent of the control lever contrary to what was exposed previously for the prior art.
- This fork is indeed formed in the big arm of an L-shaped curved element, hereinafter referred to as "clutch spring", articulated at the junction of both arms on the mechanism board or on a board of adjustment, the small arm of said clutch spring being biased at its base by the control lever.
- the clutch spring is articulated in a hinge of a control board formed by a plate of hinge, spacer and cover, assembled by two studs whose ends are guided in translation by oblong openings practiced in the mechanism board and in the chronograph bridge.
- the plate forming a spacer has an extension in which is formed a oblong opening having its major axis perpendicular to the alignment of the tenons, which allows by means of an eccentric to change the distance between the end of the small arm of the clutch spring and the end of the control lever, and thereby to compensate by means of a final adjustment the manufacturing tolerances of the different parts of the clutch.
- control lever comprises three concurrent branches, the first having its end rotated in a board of mechanism, the second having its end held by a return spring in bearing against the internal toothing of an annular cam comprising a succession of hollow and flats, and the end of the third to operate the small clutch spring arm.
- FIG. 3 shows in top view only the elements components of the clutch mechanism, shown even more simplified but at more large scale in Figure 4, and in section in Figure 5.
- the clutch is shown in the disengaged position.
- clutch position change is controlled by an annular cam 1 rotated by a finger 26 actuated by a pusher (not shown) and acting on an external toothing 3, while being held in a position determined by a jumper 5.
- the cam 1 also has an internal toothing 2 formed of a succession of troughs 4 and flats 6.
- the ratio of steps between the internal toothing 2 and the external toothing 3 is 1/2 (for example 40 teeth to inside and 80 outside teeth), so that step advance of the cam 1 alternatively brings a recess 4 and a flat 6 opposite a position of reference.
- the clutch as such conventionally comprises a wheel intermediate second 19, engaged with the drive wheel 29 and the wheel of small second 25 and a clutch wheel 17, engaged with the chronograph wheel 27 and having at its upper part a flange 17a against which a spring of annular blade return 21 to hold the two mobiles 17, 19 in position engaged (as shown in Figure 7) when no solicitation exists exterior.
- the mechanism for acting on the clutch to move it into the disengaged position by exerting pressure under the collar 17a, comprises three essential elements, namely, a control lever 10, a 20 clutch spring L and an adjustment board 30.
- the control lever 10 shown in halftone in FIG. show the outline, has three concurrent branches 11, 13 and 15.
- the branch 11 is pivoted at 12 in the plate 7.
- the branch 13 has at one end a fold 14 Z terminated by a tooth 14a held against the internal toothing 2 of the cam 1 by a return spring 9 bearing against the vertical portion of the fold 14.
- This Z-fold of the end 14 is imposed only by the location of the mobile and other parts of the chronograph movement taken as an example, but could equally be replaced by any other type of stop, such as a simple rib.
- Branch 15 has its end perpendicular to a radial direction of the axis of rotation of the mobiles 17, 19 of the clutch, but not has no fork. It will be observed that the particular form of each lever arm 10 depends solely on the chosen location or imposed for the other mobiles constituting the chronograph movement, and that any other form within the reach of the person skilled in the art would still be within the scope of the present invention.
- the clutch spring 20 comprises a large arm 22 in which is formed the fork and a small arm 24 whose end is urged by the end of the branch 15 of the control lever 10.
- the clutch spring 20 comprises of other of the junction line of the two arms 22, 24 two small pivots 23a, 23b (visible in FIG. 9) mounted in a hinge of an adjustment board 30 of which the construction will be described in more detail below.
- this clutch spring 20 could be fixed directly on the mechanism board 8, or on a part secured thereto.
- the adjusting board 30 is formed by the stack of two elements 31, 35 arranged on either side of a third element forming a spacer 33.
- the element 31 has near the edges of one of its ends two small extensions 31 a, 31 b extending beyond the edge of the spacer 33, said extensions 31a, 31b having ends turned at right angles.
- the lid member is provided with one extended ends of two legs 35a, 35b located between the parts curved extensions 31a, 31b, said legs extending slightly beyond said extensions 31a, 31b.
- These three elements 31, 33, 35 are assembled by two tenons 32a, 32b driven through holes provided in said elements, the heads said tenons 32a, 32b protruding on either side of the stack to constitute the guide means 32.
- the tenons 32a, 32b are guided by openings oblong 36a, 36b made in the mechanism board 8 and in the bridge of chronograph 28, which limits the fretting of the adjustment board 30.
- the spacer 33 is provided with an extension 37 having an oblong opening 37a whose large axis is perpendicular to the alignment of tenons 32a, 32b.
- the oblong opening 37a is intended to receive an eccentric 38 which will allow to move the adjustment plate 30, and thereby to adjust the pressure exerted by the end of the branch 15 of the control lever 10 on the end of the small arm 24 of the clutch spring 20.
- extension 37 also has an orientation perpendicular to the alignment of 32a, 32b, but it is obvious that said extension could have a whole other orientation in so far as the long axis of the oblong opening remains perpendicular to the alignment of the guide pins.
- This construction has two main advantages. By acting example on the thicknesses, it makes it possible to have both a rigid control and not deformable and a clutch spring 20 having a certain flexibility to avoid too much friction.
- the board adjustment 30 makes it possible to compensate for the inevitable manufacturing tolerances in particular at the level of the clutch spring 20, the annular leaf spring 21 and cam 1. As we know, being able to be a little less demanding at the level of tolerances it is possible to manufacture the same product with a slightly lower cost while having, thanks to the invention a high quality.
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Measurement Of Unknown Time Intervals (AREA)
- Springs (AREA)
Abstract
Description
La présente invention concerne un mécanisme d'embrayage de chronographe au moyen d'un levier de commande conçu d'une part pour éviter un blocage lorsqu'on passe d'une position stop ou d'une position chronographe à zéro à une position marche, d'autre part pour ajuster avec précision la force exercée par l'extrémité du levier en résorbant en quelque sorte les inévitables tolérances de fabrication au niveau des pièces mobiles constituant ladite commande d'embrayage.The present invention relates to a chronograph clutch mechanism by means of a control lever designed on the one hand to avoid a blockage when moves from a stop position or a chronograph position to zero at a position on the other hand to precisely adjust the force exerted by the end of the lever by resorbing somehow the inevitable manufacturing tolerances at level of moving parts constituting said clutch control.
Pour mieux comprendre l'invention nous allons d'abord brièvement décrire
l'état de la technique le plus proche, à la meilleure connaissance de la demanderesse,
en référence aux figures 1 et 2 qui représentent schématiquement en plan et en
coupe une commande d'embrayage dans la position chronographe en marche.
Comme on le voit sur la figure 1, l'embrayage est actionné par une came circulaire 1
ayant à l'extérieur une denture d'entraínement 3 sur laquelle agit un levier de
manoeuvre actionné par un poussoir (non représenté), ladite came 1 étant maintenue
dans une position déterminée au moyen d'un sautoir 5. La came 1 comporte à
l'intérieur une deuxième denture de commande 2 dont les dents séparant deux creux
successifs 4 de la denture sont tronquées et présentent un méplat 6. La denture
extérieure 3 comporte deux fois plus de dents que la denture intérieure 2, de sorte
que l'entraínement d'un pas par actionnement d'un bouton-poussoir amène
successivement un creux 4 et un méplat 6 en face d'une position de référence
déterminée. La commande d'embrayage 10 est constituée par un levier ayant
fondamentalement trois bras concourants. Un premier bras 11 a son extrémité pivotée
en 12 dans la platine 7 ou dans une planche de mécanisme 8. Un deuxième bras 13
présente à son extrémité une dent 14a maintenue en appui sur un méplat 6 de la
denture intérieure de commande 2 par un ressort de rappel 9 en butée sur une partie
14 recourbée en Z. Un troisième bras flexible 15 possède à son extrémité une fourche
16, précédée d'une pliure 18 en V présentant un plan 18a incliné contre un bord 8a de
la platine 8. Dans la position embrayée représentée à la figure 2, la roue d'embrayage
17 est entraínée, sous l'action d'un ressort lame annulaire 21, par friction par la roue
intermédiaire de secondes 19. Lorsqu'on veut arrêter le chronographe, une pression
sur le bouton-poussoir fait tourner la came 1 d'un demi-pas et la dent 14a tombe dans
un creux 6, ce qui provoque le glissement du plan incliné 18a contre le bord 8a de la
platine 8 jusqu'à une position où la pliure 18 en V se trouve sur la platine 8, ce qui
permet à la fourche 16 de désolidariser la roue d'embrayage 17 de la roue
intermédiaire de secondes 19 en comprimant le ressort 21. Pour obtenir un bon
fonctionnement du mécanisme d'embrayage qui vient d'être décrit, il est donc
nécessaire de pouvoir ajuster avec précision tous les paramètres mécaniques et
physiques tels que les tolérances au niveau de la came 1, de la commande 10 et les
modules d'élasticité relatifs du ressort de rappel 9, du bras 15 de la commande 10 et
du ressort annulaire 21.To better understand the invention we will first briefly describe
the closest state of the art, to the best knowledge of the applicant,
with reference to FIGS. 1 and 2 which schematically represent in plan and in
cuts a clutch control in the running chronograph position.
As can be seen in FIG. 1, the clutch is actuated by a
Avec ce dispositif on observe très souvent un blocage de la commande 10 lors
du retour en position stop ou chronographe à zéro, blocage qui ne peut être supprimé
ou réduit qu'en prévoyant des modules d'élasticité tels qu'il faut exercer une pression
plus forte. On observera également qu'en position stop ou chronographe à zéro, qui
est la position occupée pendant le temps le plus long, le bras flexible 15 est sollicité
en permanence, ce qui peut à l'évidence provoquer, au moins partiellement une
déformation défavorable à ses propriétés élastiques.With this device it is very often observed a blocking of the
L'invention a donc pour objet de remédier aux deux inconvénients majeurs de l'art antérieur sus-mentionné en procurant une montre chronographe ayant un embrayage à la fois fiable et facile à manipuler, et dont le fonctionnement peut facilement être ajusté en fin de montage pour tenir compte de l'effet cumulé des tolérances de fabrication.The object of the invention is therefore to remedy the two major drawbacks of the above-mentioned prior art by providing a chronograph watch having a clutch that is both reliable and easy to handle, and easily be adjusted at the end of the set-up to take into account the cumulative effect of manufacturing tolerances.
A cet effet l'invention a pour objet un mécanisme d'embrayage de chronographe au moyen d'une fourche qui commande le déplacement axial d'une roue d'embrayage pour l'amener à friction avec une roue intermédiaire de seconde, ou au contraire de l'en écarter contre la force d'un ressort de rappel. Cette fourche est actionnée par un levier de commande auquel on imprime un mouvement de va-et-vient, mais selon une première caractéristique de l'invention ladite fourche est indépendante du levier de commande contrairement à ce qui a été exposé précédemment pour l'art antérieur. Cette fourche est en effet formée dans le grand bras d'un élément recourbé en L, désigné par la suite par "ressort d'embrayage", articulé à la jonction des deux bras sur la planche de mécanisme ou sur une planche de réglage, le petit bras dudit ressort d'embrayage étant sollicité à sa base par le levier de commande.For this purpose the invention relates to a clutch mechanism of chronograph by means of a fork which controls the axial displacement of a clutch wheel to bring it to friction with an intermediate wheel second, or on the contrary to remove it from the force of a return spring. This fork is operated by a control lever which is reciprocated, but according to a first feature of the invention said fork is independent of the control lever contrary to what was exposed previously for the prior art. This fork is indeed formed in the big arm of an L-shaped curved element, hereinafter referred to as "clutch spring", articulated at the junction of both arms on the mechanism board or on a board of adjustment, the small arm of said clutch spring being biased at its base by the control lever.
Selon une autre caractéristique de l'invention, le ressort d'embrayage est articulé dans une charnière d'une planche de réglage formée par une plaque de charnière, une entretoise et un couvercle, assemblés par deux tenons traversants dont les extrémités sont guidées en translation par des ouvertures oblongues pratiquées dans la planche de mécanisme et dans le pont de chronographe. La plaque formant entretoise comporte une extension dans laquelle est formée une ouverture oblongue ayant son grand axe perpendiculaire à l'alignement des tenons, ce qui permet au moyen d'un excentrique de modifier la distance entre l'extrémité du petit bras du ressort d'embrayage et l'extrémité du levier de commande, et par là-même de compenser au moyen d'un réglage final les tolérances de fabrication des différentes pièces de l'embrayage.According to another characteristic of the invention, the clutch spring is articulated in a hinge of a control board formed by a plate of hinge, spacer and cover, assembled by two studs whose ends are guided in translation by oblong openings practiced in the mechanism board and in the chronograph bridge. The plate forming a spacer has an extension in which is formed a oblong opening having its major axis perpendicular to the alignment of the tenons, which allows by means of an eccentric to change the distance between the end of the small arm of the clutch spring and the end of the control lever, and thereby to compensate by means of a final adjustment the manufacturing tolerances of the different parts of the clutch.
Selon un mode de réalisation préféré le levier de commande comporte trois branches concourantes, la première ayant son extrémité pivotée dans une planche de mécanisme, la deuxième ayant son extrémité maintenue par un ressort de rappel en appui contre la denture intérieure d'une came annulaire comportant une succession de creux et de méplats, et l'extrémité de la troisième permettant d'actionner le petit bras du ressort d'embrayage.According to a preferred embodiment, the control lever comprises three concurrent branches, the first having its end rotated in a board of mechanism, the second having its end held by a return spring in bearing against the internal toothing of an annular cam comprising a succession of hollow and flats, and the end of the third to operate the small clutch spring arm.
L'invention sera mieux comprise à la lecture de la description suivante donnée à titre d'exemple non limitatif en référence aux dessins annexés dans lesquels :
- la figure 1 représente en vue de dessus un embrayage de l'art antérieur;
- la figure 2 est une représentation en coupe de la figure 1 selon la ligne II;
- la figure 3 représente en vue de dessus le mécanisme d'une montre chronographe dont le mécanisme est limité à l'embrayage selon l'invention;
- la figure 4 est une vue agrandie des pièces constituant l'embrayage en position stop ou chronographe à zéro;
- la figure 5 est une représentation en coupe brisée interrompue de la figure 4 selon les lignes V-V;
- la figure 6 correspond à la figure 4 lorsque l'embrayage est en position chronographe en marche;
- la figure 7 est une représentation en coupe brisée interrompue de la figure 6 selon les lignes VII-VII;
- la figure 8 est une représentation en perspective de la planche de réglage du mécanisme d'embrayage;
- la figure 9 est une vue de dessus de la planche de réglage représentée à la figure 8, et
- la figure 10 est une coupe du mécanisme de la figure 8 selon la ligne X-X.
- Figure 1 shows a top view of a clutch of the prior art;
- Figure 2 is a sectional representation of Figure 1 along the line II;
- 3 shows a top view of the mechanism of a chronograph watch whose mechanism is limited to the clutch according to the invention;
- Figure 4 is an enlarged view of the parts constituting the clutch in the stop position or zero chronograph;
- Figure 5 is an interrupted broken sectional representation of Figure 4 along lines VV;
- Figure 6 corresponds to Figure 4 when the clutch is in chronograph position running;
- Figure 7 is a broken interrupted sectional representation of Figure 6 along lines VII-VII;
- Figure 8 is a perspective representation of the adjustment plate of the clutch mechanism;
- FIG. 9 is a view from above of the adjustment board represented in FIG. 8, and
- Figure 10 is a section of the mechanism of Figure 8 along the line XX.
A la figure 3 on a représenté en vue de dessus uniquement les éléments
constitutifs du mécanisme d'embrayage, montrés encore plus simplifiés mais à plus
grande échelle à la figure 4, et en coupe à la figure 5. Dans les figures 3, 4 et 5
l'embrayage est représenté en position débrayé. Comme indiqué précédemment le
changement de position de l'embrayage est commandé par une came annulaire 1
entraíné en rotation par un doigt 26 actionné par un poussoir (non représenté) et
agissant sur une denture extérieure 3, en étant maintenue dans une position
déterminée par un sautoir 5. La came 1 comporte également une denture intérieure 2
formée d'une succession de creux 4 et de méplats 6. Le rapport des pas entre la
denture intérieure 2 et la denture extérieure 3 est de 1/2 (par exemple 40 dents à
l'intérieur et 80 dents à l'extérieur), de sorte que l'avance pas à pas de la came 1
amène alternativement un creux 4 et un méplat 6 en regard d'une position de
référence.FIG. 3 shows in top view only the elements
components of the clutch mechanism, shown even more simplified but at more
large scale in Figure 4, and in section in Figure 5. In Figures 3, 4 and 5
the clutch is shown in the disengaged position. As stated previously
clutch position change is controlled by an
L'embrayage en tant que tel comprend de façon classique une roue
intermédiaire de seconde 19, en prise avec la roue entraíneuse 29 et la roue de petite
seconde 25 et une roue d'embrayage 17, en prise avec la roue de chronographe 27 et
ayant à sa partie supérieure une collerette 17a contre laquelle appuie un ressort de
rappel à lame annulaire 21 pour maintenir les deux mobiles 17, 19 en position
embrayée (comme représenté à la figure 7) lorsqu'il n'existe aucune sollicitation
extérieure.The clutch as such conventionally comprises a wheel
Dans l'exemple représenté, le mécanisme permettant d'agir sur l'embrayage,
pour le faire passer en position débrayée en exerçant une pression sous la collerette
17a, comporte trois éléments essentiels, à savoir, un levier de commande 10, un
ressort d'embrayage 20 en L et une planche de réglage 30.In the example shown, the mechanism for acting on the clutch,
to move it into the disengaged position by exerting pressure under the
Le levier de commande 10, représenté en tramé sur la figure 4 pour mieux en
montrer le contour, comporte trois branches concourantes 11, 13 et 15. La branche
11 est pivotée en 12 dans la platine 7. La branche 13 présente à une extrémité une
pliure 14 en Z terminée par une dent 14a maintenue contre la denture intérieure 2 de
la came 1 par un ressort de rappel 9 venant en appui contre la portion verticale de la
pliure 14. Cette pliure en Z de l'extrémité 14 n'est imposée que par l'emplacement des
mobiles et autres pièces du mouvement de chronographe pris à titre d'exemple, mais
pourrait de façon équivalente être remplacée par n'importe quel autre type de butée,
telle qu'une simple nervure. La branche 15 a son extrémité perpendiculaire à une
direction radiale de l'axe de rotation des mobiles 17, 19 de l'embrayage, mais ne
comporte aucune fourchette. On observera que la forme particulière de chaque
branche du levier de commande 10 dépend uniquement de l'emplacement choisi ou
imposé pour les autres mobiles constituant le mouvement de chronographe, et que
toute autre forme à la portée de l'homme de métier serait encore dans le cadre de la
présente invention.The
Le ressort d'embrayage 20 comporte un grand bras 22 dans lequel est formée
la fourchette et un petit bras 24 dont l'extrémité est sollicitée par l'extrémité de la
branche 15 du levier de commande 10.The
Dans l'exemple représenté le ressort d'embrayage 20 comporte de part et
d'autre de la ligne de jonction des deux bras 22, 24 deux petits pivots 23a, 23b
(visibles sur la figure 9) montés dans une charnière d'une planche de réglage 30 dont
la construction sera décrite plus en détails ci-après. Dans un mode de réalisation plus
simple, non représenté, ce ressort d'embrayage 20 pourrait être fixé directement sur
la planche de mécanisme 8, ou sur une pièce solidaire de celui-ci.In the example shown, the
En se référant maintenant également aux figures 8, 9 et 10 on voit que la
planche de réglage 30 est formée par l'empilement de deux éléments 31, 35 disposés
de part et d'autre d'un troisième élément formant une entretoise 33. L'élément 31
comporte près des bords de l'une de ses extrémités deux petites extensions 31 a, 31 b
s'étendant au-delà du bord de l'entretoise 33, lesdites extensions 31 a, 31 b ayant des
extrémités retournées à angle droit. L'élément 35 formant couvercle est pourvu à l'une
de ses extrémités prolongée de deux pattes 35a, 35b situées entre les parties
recourbées des extensions 31 a, 31 b, lesdites pattes s'étendant légèrement au-delà
desdites extension 31 a, 31 b. Ces trois éléments 31, 33, 35 sont assemblés par deux
tenons 32a, 32b chassés à travers des trous prévus dans lesdits éléments, les têtes
desdits tenons 32a, 32b dépassant de part et d'autre de l'empilement pour constituer
les moyens de guidage 32. Les tenons 32a, 32b sont guidés par des ouvertures
oblongues 36a, 36b pratiquées dans la planche de mécanisme 8 et dans le pont de
chronographe 28, ce qui permet de limiter l'ébat de la planche de réglage 30.Referring now also to FIGS. 8, 9 and 10, it can be seen that the
adjusting
On voit également que, du côté opposé à la charnière, l'entretoise 33 est
pourvue d'une extension 37 comportant une ouverture oblongue 37a dont le grand
axe est perpendiculaire à l'alignement des tenons 32a, 32b. Comme on le voit sur les
figures 4 et 5, l'ouverture oblongue 37a est destinée à recevoir un excentrique 38 qui
va permettre de déplacer la plaque de réglage 30, et par là-même d'ajuster la
pression exercée par l'extrémité de la branche 15 du levier de commande 10 sur
l'extrémité du petit bras 24 du ressort d'embrayage 20. Dans le mode de réalisation
décrit l'extension 37 a également une orientation perpendiculaire à l'alignement des
tenons 32a, 32b, mais il est bien évident que ladite extension pourrait avoir une toute
autre orientation dans la mesure où le grand axe de l'ouverture oblongue demeure
perpendiculaire à l'alignement des tenons de guidage.It can also be seen that, on the side opposite the hinge, the
Cette construction présente essentiellement deux avantages. En agissant par
exemple sur les épaisseurs, elle permet d'avoir à la fois une commande 10 rigide et
non déformable et un ressort d'embrayage 20 présentant une certaine flexibilité
permettant d'éviter trop de friction. En agissant sur la vis à excentrique 38 la planche
de réglage 30 permet de compenser les inévitables tolérances de fabrication
notamment au niveau du ressort d'embrayage 20, du ressort lame annulaire 21 et de
la came 1. Comme on le sait, en pouvant être un peu moins exigeant au niveau des
tolérances il est possible de fabriquer le même produit avec un coût un peu inférieur
tout en ayant, grâce à l'invention une qualité élevée. This construction has two main advantages. By acting
example on the thicknesses, it makes it possible to have both a rigid control and
not deformable and a
En revenant à la figure 4, on voit qu'en position débrayée la dent 14a est
maintenue en appui sur le méplat 6 par le ressort 9, tandis qu'en position embrayée
représentée aux figures 6 et 7 la dent 14a tombe dans un creux 4. La came 1 permet
donc d'imprimer au levier de commande 10 un mouvement de va-et-vient, mais il est
bien évident que ce mouvement pourrait être obtenu de toute autre façon connue de
l'homme de métier, sans sortir du cadre de la présente invention.Returning to FIG. 4, it can be seen that in the
Claims (7)
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP02079166A EP1406132B1 (en) | 2002-10-04 | 2002-10-04 | Coupling mechanism for a chronographe |
DE60210973T DE60210973T2 (en) | 2002-10-04 | 2002-10-04 | Clutch mechanism for chronographs |
AT02079166T ATE324621T1 (en) | 2002-10-04 | 2002-10-04 | CLUTCH MECHANISM FOR CHRONOGRAPHS |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP02079166A EP1406132B1 (en) | 2002-10-04 | 2002-10-04 | Coupling mechanism for a chronographe |
CH16622002 | 2002-10-04 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1406132A1 true EP1406132A1 (en) | 2004-04-07 |
EP1406132B1 EP1406132B1 (en) | 2006-04-26 |
Family
ID=32034714
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP02079166A Expired - Lifetime EP1406132B1 (en) | 2002-10-04 | 2002-10-04 | Coupling mechanism for a chronographe |
Country Status (10)
Country | Link |
---|---|
US (1) | US7021818B2 (en) |
EP (1) | EP1406132B1 (en) |
JP (1) | JP4343642B2 (en) |
KR (1) | KR100972914B1 (en) |
CN (1) | CN100527021C (en) |
AT (1) | ATE324621T1 (en) |
DE (1) | DE60210973T2 (en) |
HK (1) | HK1063221A1 (en) |
SG (1) | SG107155A1 (en) |
TW (1) | TWI269949B (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101452256B (en) * | 2007-12-07 | 2012-05-16 | 奥米加股份有限公司 | Chronograph control device |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP5100523B2 (en) * | 2008-06-16 | 2012-12-19 | セイコーインスツル株式会社 | DAY DISPLAY DEVICE AND CLOCK HAVING THE SAME |
ATE543125T1 (en) * | 2008-10-24 | 2012-02-15 | Eta Sa Mft Horlogere Suisse | AUXILIARY DEVICE FOR MAINTAINING THE POSITION OF A DATE DISC FOR A CLOCK MOVEMENT |
DE102013103180B4 (en) * | 2013-03-28 | 2014-11-13 | Uwe Heinz | Chronograph |
CH709796A1 (en) * | 2014-06-19 | 2015-12-31 | Société Anonyme De La Manufacture D Horlogerie Audemars Piguet & Cie | An rocker clutch timepiece. |
EP3147728A1 (en) * | 2015-09-24 | 2017-03-29 | Harry Winston SA | Mechanism for positioning a toothed wheel in a clock movement |
EP3324249A1 (en) * | 2016-11-17 | 2018-05-23 | Nogerah SA | Clutch system for chronograph |
EP3489760B1 (en) * | 2017-11-22 | 2020-08-26 | Harry Winston SA | Timepiece case with push button |
EP3502803B1 (en) * | 2017-12-19 | 2020-08-05 | Omega SA | Adjustable timepiece assembly |
EP3671367A1 (en) * | 2018-12-21 | 2020-06-24 | ETA SA Manufacture Horlogère Suisse | Assembly comprising a support, a plate and attachment means, in particular for a timepiece |
JP7275848B2 (en) | 2019-05-21 | 2023-05-18 | マツダ株式会社 | Processing machine control device and its control method |
JP7022237B1 (en) | 2021-04-15 | 2022-02-17 | Dmg森精機株式会社 | Machine tool chip remover and chip removal method |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH678911GA3 (en) * | 1990-04-12 | 1991-11-29 | ||
EP1136894A1 (en) * | 2000-03-20 | 2001-09-26 | DTH Dubois Technique Horlogère SA | Device for return to zero in a chronograph timepiece |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH651676A4 (en) * | 1976-05-24 | 1977-06-15 | ||
CH671492B5 (en) | 1987-04-02 | 1990-03-15 | Roventa Henex Sa | |
CH682034B5 (en) * | 1991-10-14 | 1994-01-14 | Eta S.A. Fabriques D'ebauches | Timepiece including a chronograph module adapted on a motor module. |
JP3466160B2 (en) | 2001-03-14 | 2003-11-10 | セイコーインスツルメンツ株式会社 | Chronograph watch with hammer |
JP4537655B2 (en) * | 2001-03-21 | 2010-09-01 | グラスヒュッター・ウーレンベトリープ・ゲーエムベーハー | Bi-directional rotating chronograph |
-
2002
- 2002-10-04 EP EP02079166A patent/EP1406132B1/en not_active Expired - Lifetime
- 2002-10-04 AT AT02079166T patent/ATE324621T1/en not_active IP Right Cessation
- 2002-10-04 DE DE60210973T patent/DE60210973T2/en not_active Expired - Lifetime
-
2003
- 2003-09-29 TW TW092126886A patent/TWI269949B/en not_active IP Right Cessation
- 2003-10-01 KR KR1020030068112A patent/KR100972914B1/en not_active IP Right Cessation
- 2003-10-02 SG SG200305760A patent/SG107155A1/en unknown
- 2003-10-03 JP JP2003345467A patent/JP4343642B2/en not_active Expired - Lifetime
- 2003-10-06 US US10/678,157 patent/US7021818B2/en active Active
- 2003-10-08 CN CNB2003101007495A patent/CN100527021C/en not_active Expired - Lifetime
-
2004
- 2004-08-10 HK HK04106002.9A patent/HK1063221A1/en not_active IP Right Cessation
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH678911GA3 (en) * | 1990-04-12 | 1991-11-29 | ||
EP1136894A1 (en) * | 2000-03-20 | 2001-09-26 | DTH Dubois Technique Horlogère SA | Device for return to zero in a chronograph timepiece |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101452256B (en) * | 2007-12-07 | 2012-05-16 | 奥米加股份有限公司 | Chronograph control device |
Also Published As
Publication number | Publication date |
---|---|
DE60210973D1 (en) | 2006-06-01 |
HK1063221A1 (en) | 2004-12-17 |
EP1406132B1 (en) | 2006-04-26 |
TW200405959A (en) | 2004-04-16 |
DE60210973T2 (en) | 2007-01-04 |
US7021818B2 (en) | 2006-04-04 |
CN100527021C (en) | 2009-08-12 |
TWI269949B (en) | 2007-01-01 |
JP4343642B2 (en) | 2009-10-14 |
KR100972914B1 (en) | 2010-07-28 |
CN1497400A (en) | 2004-05-19 |
US20040066711A1 (en) | 2004-04-08 |
SG107155A1 (en) | 2004-11-29 |
KR20040031598A (en) | 2004-04-13 |
JP2004125797A (en) | 2004-04-22 |
ATE324621T1 (en) | 2006-05-15 |
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