WO1997012297A1 - Automatic operation correction device for a winding and hand setting device in a mechanical watch movement - Google Patents
Automatic operation correction device for a winding and hand setting device in a mechanical watch movement Download PDFInfo
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- WO1997012297A1 WO1997012297A1 PCT/CH1996/000334 CH9600334W WO9712297A1 WO 1997012297 A1 WO1997012297 A1 WO 1997012297A1 CH 9600334 W CH9600334 W CH 9600334W WO 9712297 A1 WO9712297 A1 WO 9712297A1
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- Prior art keywords
- rod
- movement
- racket
- sleeve
- ring
- Prior art date
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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
- G04B18/00—Mechanisms for setting frequency
- G04B18/02—Regulator or adjustment devices; Indexing devices, e.g. raquettes
- G04B18/021—Regulator or adjustment devices; Indexing devices, e.g. raquettes adjusting the indexing device from the outside
Definitions
- the subject of the present invention is an automatic correcting mechanism for movement, associated with a winding device and setting the time in a mechanical watch movement with a racket and a winding stem movable in rotation about its axis and taking several axial positions, this mechanism comprising a rigid connecting member, movable under the effect of displacements of the rod and transmitting its displacements without play to the racket.
- Morf patent 336008 proposes to mount in the wall of the box a control member capable of being moved in rotation and which drives a ring coaxial with the movement, acting on the tail of the racket by a system of ramp and pressed rod against the ramp by a spring.
- a control member capable of being moved in rotation and which drives a ring coaxial with the movement, acting on the tail of the racket by a system of ramp and pressed rod against the ramp by a spring.
- Patent GB-A-1, 397,492 is also known, which describes a winding and time-setting mechanism comprising four positions of rods, in one of which, if the rod is turned, the racket is displaced .
- the racket retouch is proportional to the rotation imparted to the rod, so that the user has no control over the gait correction thus introduced.
- US-A-3, 099, 129 aims to make a racket correction related to setting the hands, but this correction is proportional to the extent of the setting.
- the present invention therefore aims to fill a gap by proposing an arrangement which modifies the position of the racket in increments, in one direction or the other, each time the wearer of the watch makes an adjustment of the position of the hands.
- the present invention proposes an automatic correcting mechanism for movement, associated with a winding and time-setting device in a mechanical watch movement with a racket and a winding stem movable in rotation about its axis and taking several axial positions, this mechanism comprising a rigid connecting member, mobile under the effect of displacements of the rod and transmitting its displacements without play to the racket, characterized in that the mechanism comprises a control member mounted on the rod, frictionally coupled thereto in the rotational direction and linked to it in the axial direction, a control element integral with the control member and cooperating with the connecting member, and guide means which control displacements of the control element caused by an axial movement of return of the stem from an initial time setting position to a usual position or winding, these movements of the control element having a trajectory such that: either the connecting member and the racket move in an increment in a direction corresponding to that of a prior rotational movement performed by the rod in said initial time setting position, or else the connecting member and the racket remain stationary.
- the connecting member comprises a ring coaxial with the movement, mounted on the frame of the latter and having over part of its length a toothing in which the control element meshes during the movement of back, and in that a finger secured to the ring is linked without play to the tail of the racket.
- the control member can be a bush mounted frictionally on the rod, between a collar of the latter and an elastic element acting axially, the guide means comprising a cam having an active surface formed by two branches of symmetrical and coaxial helicoids to the rod, a guide element cooperating with the cam to impart to the control element a rotational movement in response to an axial displacement of the rod.
- the cam and the sleeve can be two parts in one piece, the guide element being constituted by a finger secured to the frame of the movement, the control element being constituted by a longitudinal rib of the sleeve.
- the ring may have teeth of triangular profile whose vertices are straight lines oriented radially with respect to the center of the ring, the rib forming the control element being of triangular profile and extending along a generatrix of the socket, the whole being arranged so that a return movement of the rod from a time setting position to the usual position causes rotation and axial displacement of the socket and displacement of the ring over a maximum distance of one step from its toothing.
- the cam can be a fixed part secured to the frame of the movement, the control element and the guide element being two parts of the same finger directed radially and secured to the sleeve.
- Each helical branch of the cam can be formed of two successive portions having different inclinations, and an axial inlet.
- the ring can be mounted with greasy friction on the plate, and carry, in line with the racket, a rigid rod crossing the movement so as to cooperate without play with a ramp formed on the tail of the racket.
- the invention also relates to a mechanical watch movement comprising a corrective mechanism as defined above.
- the characteristics of the mechanism according to the invention imply that any correction of the position of the hands (with the rod in the time setting position) automatically causes retouching of the racket limited to a fixed increment, when returning to the usual position, in one direction if the hands have been advanced, in the other if they have been moved back.
- this mechanism is simple and compact. As described and shown, the mechanism according to the invention can be adapted to any size of existing mechanical watch.
- FIG. 1 is a schematic plan view on a small scale, on the side of the bridges, showing the connection between the link ring and the racket,
- Figures 2 and 3 are partial views, on a larger scale, in section through a diametral plane passing through the axis of the winding stem, respectively in the usual position and in the time setting position, of a first form of execution of the corrective mechanism,
- FIGS. 4 and 5 are sectional views along lines IV-IV and V-V of FIGS. 2 and 3,
- FIG. 6 is a perspective view of an essential part of the mechanism described.
- Figure 7 is a partial view similar to Figure 2 of a variant.
- Figure 1 shows, seen from the side of the bridges, a circular mechanical movement which one can see the rooster 1 on which is mounted a racket 2.
- the rod 3 of the winding and time setting device which is a device usual, with pull rod, rocker and sliding pinion.
- the movement itself can be of any type. It may in particular include an automatic winding device, a calendar device, etc.
- a connecting ring 4 is mounted with fatty friction, on the plate, coaxial with this main part of the frame, of so that it can move slightly in rotation.
- This ring carries a rigid rod 5 which crosses the movement, in particular an opening in an arc 6 of the cock 1, and presses against a ramp 7 which has one of the edges of the racket.
- a hairpin spring 8 maintains the ramp 7 in constant abutment against the rod 5.
- FIGS. 2 to 6 show how any time-setting operation carried out by means of the winding stem 3 to correct a delay or an advance of the hands, has the effect of an incremental retouching of the position of the racket, in the direction an increase in the frequency of the balance-spring system or, on the contrary, a decrease in this frequency, depending on the direction of the correction made to the hands.
- Figures 2 and 3 we recognize the usual elements of the winding and time setting device, either the rod 3 which is guided in holes 9 and 10 of the plate 11 and the bracket 12, the winding pinion 13 , mounted on a cylindrical bearing surface of the stem and provided with the usual bréguet toothing, the sliding pinion 14 mounted on the square 15 of the stem, and the time setting reference 16 pivoting on a bearing screw 17.
- the connecting means between the device which has just been described and the racket correcting device of FIG. 1 is in fact made up of four parts: the connecting ring 4 already mentioned, a socket 18, a guide finger and blocking 19, and a double spring washer 20 which provides a friction coupling between the rod 3 and the bush 18.
- the rod 3 has, in front of the flange 21 limiting the groove 22 in which the pull tab stud is engaged, a cylindrical surface 23 on which the sleeve 18 is engaged.
- the friction is produced on the one hand by adjusting this bearing with respect to the hole in the bushing and on the other hand by the double washer 20 which rests on the bushing and on the terminal shoulder of the crown 24, shown schematically in Figures 2 and 3.
- the ring 4 is engaged in a groove in the plate. It can be retained by flanges. In the area of the winding device, it has over part of its length a toothing 25 with triangular teeth projecting in the direction parallel to the axis of the movement. This toothing is also visible in FIGS. 4 and 5. It can be seen that it passes immediately above the socket 18.
- the sleeve 18 is a relatively complicated part, which can be made of sintered or molded material, although manufacturing by machining is also possible. It has the general shape of a cylindrical sleeve whose part of larger diameter is notched (FIG. 6) so as to present two cam surfaces 26 symmetrical and of helical shape, themselves divided into a main part 26a, the inclination on the axis is relatively small, an intermediate part 26b whose inclination is greater and a final part or entry zone 26c where the helical surface is transformed into a plane passing through the axis of the sleeve.
- the bush 18 has a rib 27 whose triangular profile is adjusted to the between-teeth of the teeth of the ring 4.
- the finger 19 is planted in a housing of the plate so as to be located exactly in the inlet 26c of the sleeve 18 when the rod 3 is in the usual position, for reassembly. Its section is circular, however a polygonal section can also be provided.
- the socket being itself clamped by the spring 20 between the collar of the rod and the shoulder of the crown, the adjustments will be made so that in this position any rotation of the crown has no effect on the bushing and consequently on the ring 4.
- the walking correction will be equal to one step of the toothing of the ring 4 in one direction or the other depending on the direction of movement of the hands. It is noted that this result is achieved even if the correction of the position of the hands was made in several movements, and even if a first movement took place in the wrong direction. The only thing that matters is the position of the socket when the rod is pushed back into the reassembly position. On the other hand, any gait correction is avoided in the case where the hands have been moved to make a change of time zone or official time (summer time - winter time) if the gear ratios are chosen so that a difference of one hour (or possibly half an hour or any whole fraction of an hour) corresponds exactly to a rotation of one revolution of the rod 3.
- Figures 1 to 6 show a preferred embodiment of the invention.
- the effect of automatic gait adjustment when correcting the position of the hands can also be achieved with certain variant embodiments.
- this ramp could also be provided on the ring 4, the racket 2 then being equipped with the rod 5.
- the ring 4 could also be located inside of movement or on the side of the bridges.
- the connecting ring 4 could also be provided with edge teeth, or teeth axially directed but of ogival shape.
- the mechanism comprises a fixed cam 28, for example integral with the plate 11 with its two surfaces helical, one of which 28a is visible.
- the sleeve 18 is replaced by a cylindrical sleeve 29 mounted on the winding rod 3.
- This sleeve axially integral with the rod, but frictionally coupled to the latter in the rotary direction, carries a single finger 30 projecting radially, cooperating with on the one hand with the fixed cam 28, and on the other hand with the toothing 31 of the ring 4, whose teeth, of ogival shape, are placed on edge.
- the sleeve 29 could also carry two different fingers, each fulfilling one of the functions indicated.
- the axial rib of the sleeve 18 could also be replaced by a finger planted radially and meshing with ogival teeth of the ring 4.
- the fingers 19 and 30 have straight ends. However, according to a preferred embodiment, these fingers have ends of rounded or pointed shape.
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- Orthopedics, Nursing, And Contraception (AREA)
Abstract
A ring (4) coaxially mounted on a plate (11) actuates an index plate (2). During hand setting, rotation of a stem (3) provides a friction drive for rotating a sleeve (18) with a rib (20) disengaged from a toothed portion (25). When the stem is returned to its normal position, a finger (19) rotates the sleeve (18) so that the sleeve rib (27) engages the toothed portion (25) and moves the ring (4), whereby an incremental adjustment of the position of the index plate is automatically performed in the desired direction.
Description
Mécanisme pnrrprr.pur d° marche aur.nmatiφ.«> assnrig à un dispositif de remnntnir et rio miss à l 'heure dans un mouvement de montre méeaniςpie Mechanism pnrrprr.pur of step aur.nmatiφ. "> Assnrig to a device of remnntnir and rio miss on time in a watch movement méeaniςpie
La présente invention a pour objet un mécanisme correcteur de marche automatique, associé à un dispositif de remontoir et de mise à 1 'heure dans un mouvement de montre mécanique avec une raquette et une tige de remontoir mobile en rotation autour de son axe et prenant plusieurs positions axiales, ce mécanisme comportant un organe de liaison rigide, mobile sous l'effet de déplacements de la tige et transmettant ses déplacements sans jeu à la raquette.The subject of the present invention is an automatic correcting mechanism for movement, associated with a winding device and setting the time in a mechanical watch movement with a racket and a winding stem movable in rotation about its axis and taking several axial positions, this mechanism comprising a rigid connecting member, movable under the effect of displacements of the rod and transmitting its displacements without play to the racket.
Depuis que les montres mécaniques, notamment les montres- bracelets de ce type, retrouvent dans une certaine mesure les faveurs du public, le problème de la correction de la marche de ces montres se pose à nouveau. Or on s'est aperçu qu'il n'existait aucun agencement simple, fiable, susceptible d'être incorporé à un mouvement usuel et assurant un ajustement automatique du régulateur de marche en fonction des besoins de remise à l'heure de la position des aiguilles. En effet, de nombreuses propositions ont déjà été faites dans le passé pour incorporer à un mouvement de montre un agencement permettant au porteur d'effectuer des retouches de ia position de la raquette sans qu'il ait à ouvrir le boîtier de la montre. On citera, notamment, dans l'ordre chronologique les brevets suisses No -30608, 74355, 138053, 152942, 278648, 317188, 328496, 336008. Les deux derniers brevets cités montrent des dispositions typiques pour le genre de propositions qui ont été faites: Ainsi le brevet Morf 336008 propose de monter dans la paroi de la boîte un organe de commande susceptible d'être déplacé en rotation et qui entraîne un anneau coaxial au mouvement, agissant sur la queue de la raquette par un système de rampe et de tige pressée contre la rampe par un ressort. L'amplitude des retouches de raquette n'est pas limitée et celles-ci doivent être effectuées indépendamment des opérations de mise à l'heure. C'est donc l'habileté du porteur de la montre qui est déterminante pour ia réussite de
l'opération de retouche de raquette. Quant au brevet Heimann 328496, il révèle un mécanisme qui comporte un moyen de liaison entre le dispositif de mise à l'heure et le correcteur de raquette, mais ici également, la retouche de raquette dépend de la manière dont ce mécanisme est manoeuvré. En outre le mécanisme nécessite un grand nombre de pièces, dont l'ajustage, en particulier l'amplitude des jeux qu'il faut prévoir, mettent en question la fiabilité.Since mechanical watches, in particular wristwatches of this type, have to some extent found favor with the public, the problem of correcting the running of these watches has arisen again. However, it was found that there was no simple, reliable arrangement capable of being incorporated into a usual movement and ensuring automatic adjustment of the cruise control according to the needs for resetting the position of the time. needles. Indeed, many proposals have already been made in the past to incorporate into a watch movement an arrangement allowing the wearer to make alterations to the position of the racket without having to open the watch case. We will cite, in particular, in chronological order the Swiss patents No -30608, 74355, 138053, 152942, 278648, 317188, 328496, 336008. The last two cited patents show typical provisions for the kind of proposals that have been made: Thus Morf patent 336008 proposes to mount in the wall of the box a control member capable of being moved in rotation and which drives a ring coaxial with the movement, acting on the tail of the racket by a system of ramp and pressed rod against the ramp by a spring. There is no limit to the extent of racket touch-ups and these must be carried out independently of the time setting operations. It is therefore the skill of the watch wearer that is decisive for the success of the racket touch-up operation. As for the Heimann patent 328496, it reveals a mechanism which comprises a means of connection between the time setting device and the racket corrector, but here too, the racket touch-up depends on the way in which this mechanism is operated. In addition, the mechanism requires a large number of parts, the adjustment of which, in particular the amplitude of the clearances which must be provided, calls into question the reliability.
On connaît également le brevet GB-A-1, 397,492 qui décrit un mécanisme de remontoir et de mise à l'heure comportant quatre positions de tiges, dans l'une desquelles, si on tourne la tige, on provoque un déplacement de la raquette. Toutefois, la retouche de raquette est proportionnelle à la rotation imprimée à la tige, de sorte que l'utilisateur n'a aucun contrôle de la correction de marche ainsi introduite.Patent GB-A-1, 397,492 is also known, which describes a winding and time-setting mechanism comprising four positions of rods, in one of which, if the rod is turned, the racket is displaced . However, the racket retouch is proportional to the rotation imparted to the rod, so that the user has no control over the gait correction thus introduced.
De même, le brevet US-A-3 , 099, 129 vise à effectuer une correction de raquette liée à une mise à l'heure des aiguilles, mais cette correction est proportionnelle à l'ampleur de la mise à l'heure.Likewise, US-A-3, 099, 129 aims to make a racket correction related to setting the hands, but this correction is proportional to the extent of the setting.
La présente invention vise donc à combler une lacune en proposant un agencement qui modifie la position de la raquette par incréments, dans un sens ou dans l'autre, chaque fois que le porteur de la montre effectue un ajustage de la position des aiguilles.The present invention therefore aims to fill a gap by proposing an arrangement which modifies the position of the racket in increments, in one direction or the other, each time the wearer of the watch makes an adjustment of the position of the hands.
Dans ce but, la présente invention propose un mécanisme correcteur de marche automatique, associé à un dispositif de remontoir et de mise à l'heure dans un mouvement de montre mécanique avec une raquette et une tige de remontoir mobile en rotation autour de son axe et prenant plusieurs positions axiales, ce mécanisme comportant un organe de liaison rigide, mobile sous l'effet de déplacements de la tige et transmettant ses déplacements sans jeu à la raquette, caractérisé en ce que le mécanisme comprend un organe de commande monté sur la tige, accouplé à friction à celle-ci dans le sens rotatif et lié à
elle dans le sens axial, un élément de commande solidaire de l'organe de commande et coopérant avec l'organe de liaison, et des moyens de guidage qui contrôlent des déplacements de l'élément de commande provoqués par un mouvement axial de retour de la tige d'une position initiale de mise à l'heure à une position usuelle ou de remontage, ces déplacements de l'élément de commande ayant une trajectoire telle que: ou bien l'organe de liaison et la raquette se déplacent d'un incrément dans une direction correspondant à celle d'un mouvement préalable de rotation effectué par la tige dans ladite position initiale de mise à l'heure, ou bien l'organe de liaison et la raquette restent immobiles.To this end, the present invention proposes an automatic correcting mechanism for movement, associated with a winding and time-setting device in a mechanical watch movement with a racket and a winding stem movable in rotation about its axis and taking several axial positions, this mechanism comprising a rigid connecting member, mobile under the effect of displacements of the rod and transmitting its displacements without play to the racket, characterized in that the mechanism comprises a control member mounted on the rod, frictionally coupled thereto in the rotational direction and linked to it in the axial direction, a control element integral with the control member and cooperating with the connecting member, and guide means which control displacements of the control element caused by an axial movement of return of the stem from an initial time setting position to a usual position or winding, these movements of the control element having a trajectory such that: either the connecting member and the racket move in an increment in a direction corresponding to that of a prior rotational movement performed by the rod in said initial time setting position, or else the connecting member and the racket remain stationary.
Selon un mode d'exécution du mécanisme, l'organe de liaison comporte un anneau coaxial au mouvement, monté sur le bâti de ce dernier et présentant sur une partie de sa longueur une denture dans laquelle l'élément de commande engrène lors du mouvement de retour, et en ce qu'un doigt solidaire de l'anneau est lié sans jeu à la queue de la raquette.According to one embodiment of the mechanism, the connecting member comprises a ring coaxial with the movement, mounted on the frame of the latter and having over part of its length a toothing in which the control element meshes during the movement of back, and in that a finger secured to the ring is linked without play to the tail of the racket.
L'organe de commande peut être une douille montée à friction sur la tige, entre une collerette de cette dernière et un élément élastique agissant axialement, les moyens de guidage comportant une came ayant une surface active formée de deux branches d'hélicoïdes symétriques et coaxiales à la tige, un élément de guidage coopérant avec la came pour imprimer à l'élément de commande un mouvement de rotation en réponse à un déplacement axial de la tige.The control member can be a bush mounted frictionally on the rod, between a collar of the latter and an elastic element acting axially, the guide means comprising a cam having an active surface formed by two branches of symmetrical and coaxial helicoids to the rod, a guide element cooperating with the cam to impart to the control element a rotational movement in response to an axial displacement of the rod.
La came et la douille peuvent être deux parties d'une même pièce, l'élément de guidage étant constitué par un doigt solidaire du bâti du mouvement, l'élément de commande étant constitué par une nervure longitudinale de la douille.The cam and the sleeve can be two parts in one piece, the guide element being constituted by a finger secured to the frame of the movement, the control element being constituted by a longitudinal rib of the sleeve.
L'anneau peut présenter des dents de profil triangulaire dont les sommets sont des lignes droites orientées radialement par rapport au centre de l'anneau, la nervure formant l'élément de commande étant de profil triangulaire et
s'étendant selon une génératrice de la douille, le tout étant agencé de manière qu'un mouvement de retour de la tige d'une position de mise à l'heure à la position usuelle provoque une rotation et un déplacement axial de la douille et un déplacement de l'anneau sur une distance maximale d'un pas de sa denture.The ring may have teeth of triangular profile whose vertices are straight lines oriented radially with respect to the center of the ring, the rib forming the control element being of triangular profile and extending along a generatrix of the socket, the whole being arranged so that a return movement of the rod from a time setting position to the usual position causes rotation and axial displacement of the socket and displacement of the ring over a maximum distance of one step from its toothing.
La came peut être une pièce fixe solidaire du bâti du mouvement, l'élément de commande et l'élément de guidage étant deux parties d'un même doigt dirigé radialement et solidaire de la douille.The cam can be a fixed part secured to the frame of the movement, the control element and the guide element being two parts of the same finger directed radially and secured to the sleeve.
Chaque branche d'hélicoïde de la came peut être formée de deux portions successives ayant des inclinaisons différentes, et d'une entrée axiale.Each helical branch of the cam can be formed of two successive portions having different inclinations, and an axial inlet.
L'anneau peut être monté à frottement gras sur la platine, et porter, au droit de la raquette, une tige rigide traversant le mouvement de manière à coopérer sans jeu avec une rampe formée sur la queue de la raquette.The ring can be mounted with greasy friction on the plate, and carry, in line with the racket, a rigid rod crossing the movement so as to cooperate without play with a ramp formed on the tail of the racket.
L'invention concerne également un mouvement de montre mécanique comportant un mécanisme correcteur tel que défini ci-dessus.The invention also relates to a mechanical watch movement comprising a corrective mechanism as defined above.
Les caractéristiques du mécanisme selon l'invention impliquent que toute correction de la position des aiguilles (avec la tige en position de mise à l'heure) provoque automatiquement une retouche de raquette limitée à un incrément fixe, au moment du retour en position usuelle, dans un sens si les aiguilles ont été avancées, dans l'autre si elles ont été reculées. Le fait que la retouche de la position de la raquette n'est que d'un incrément fixe, permet d'atteindre le maximum de précision possible avec une montre mécanique. On peut de plus mentionner, entre autres avantages, que ce mécanisme est simple et peu encombrant .
Tel que décrit et représenté, le mécanisme selon l'invention peut être adapté à tout calibre de montre mécanique existant .The characteristics of the mechanism according to the invention imply that any correction of the position of the hands (with the rod in the time setting position) automatically causes retouching of the racket limited to a fixed increment, when returning to the usual position, in one direction if the hands have been advanced, in the other if they have been moved back. The fact that the retouching of the racket's position is only of a fixed increment, allows to reach the maximum possible precision with a mechanical watch. One can also mention, among other advantages, that this mechanism is simple and compact. As described and shown, the mechanism according to the invention can be adapted to any size of existing mechanical watch.
On va décrire ci-après, à titre d'exemple, une forme d'exécution du mécanisme selon l'invention, et différentes variantes, en se référant au dessin annexé dont:An embodiment of the mechanism according to the invention, and various variants, will be described below, by way of example, with reference to the appended drawing, in which:
la figure 1 est une vue en plan schématique et à petite échelle, du côté des ponts, montrant la connexion entre l'anneau de liaison et la raquette,FIG. 1 is a schematic plan view on a small scale, on the side of the bridges, showing the connection between the link ring and the racket,
les figures 2 et 3 sont des vues partielles, à plus grande échelle, en coupe par un plan diamétral passant par l'axe de la tige de remontoir, respectivement en position usuelle et en position de mise à l'heure, d'une première forme d'exécution du mécanisme correcteur,Figures 2 and 3 are partial views, on a larger scale, in section through a diametral plane passing through the axis of the winding stem, respectively in the usual position and in the time setting position, of a first form of execution of the corrective mechanism,
les figures 4 et 5 sont des vues en coupe selon les lignes IV-IV et V-V des figures 2 et 3 ,FIGS. 4 and 5 are sectional views along lines IV-IV and V-V of FIGS. 2 and 3,
la figure 6 est une vue en perspective d'une pièce essentielle du mécanisme décrit, etFIG. 6 is a perspective view of an essential part of the mechanism described, and
la figure 7 est une vue partielle analogue à la figure 2 d'une variante .Figure 7 is a partial view similar to Figure 2 of a variant.
La figure 1 montre, vu du côté des ponts, un mouvement mécanique circulaire dont on distingue le coq 1 sur lequel est montée une raquette 2. On voit également la tige 3 du dispositif de remontoir et de mise à l'heure qui est un dispositif usuel, à tirette, bascule et pignon coulant. Le mouvement lui-même peut être de type quelconque. Il peut en particulier comporter un dispositif de remontage automatique, un dispositif de calendrier, etc.Figure 1 shows, seen from the side of the bridges, a circular mechanical movement which one can see the rooster 1 on which is mounted a racket 2. We also see the rod 3 of the winding and time setting device which is a device usual, with pull rod, rocker and sliding pinion. The movement itself can be of any type. It may in particular include an automatic winding device, a calendar device, etc.
Un anneau de liaison 4 est monté à frottement gras, sur la platine, coaxialement à cette pièce principale du bâti, de
manière à pouvoir se déplacer légèrement en rotation. Cet anneau porte une tige rigide 5 qui traverse le mouvement, notamment une ouverture en arc de cercle 6 du coq 1, et appuie contre une rampe 7 que présente un des bords de la raquette. Un ressort en épingle à cheveux 8 maintient la rampe 7 en appui constant contre la tige 5.A connecting ring 4 is mounted with fatty friction, on the plate, coaxial with this main part of the frame, of so that it can move slightly in rotation. This ring carries a rigid rod 5 which crosses the movement, in particular an opening in an arc 6 of the cock 1, and presses against a ramp 7 which has one of the edges of the racket. A hairpin spring 8 maintains the ramp 7 in constant abutment against the rod 5.
Les figures 2 à 6 montrent comment toute opération de mise à l'heure effectuée au moyen de la tige de remontoir 3 pour corriger un retard ou une avance des aiguilles, a pour effet une retouche incrémentielle de la position de la raquette, dans le sens d'une augmentation de la fréquence du système balancier-spiral ou au contraire d'une diminution de cette fréquence, suivant le sens de la correction apportée aux aiguilles .FIGS. 2 to 6 show how any time-setting operation carried out by means of the winding stem 3 to correct a delay or an advance of the hands, has the effect of an incremental retouching of the position of the racket, in the direction an increase in the frequency of the balance-spring system or, on the contrary, a decrease in this frequency, depending on the direction of the correction made to the hands.
Aux figures 2 et 3 on reconnaît les éléments usuels du dispositif de remontoir et de mise à l'heure, soit la tige 3 qui est guidée dans des trous 9 et 10 de la platine 11 et de la potence 12, le pignon de remontoir 13, monté sur une portée cylindrique de la tige et pourvu de la denture bréguet usuelle, le pignon coulant 14 monté sur le carré 15 de la tige, et le renvoi de mise à l'heure 16 pivotant sur une vis à portée 17.Figures 2 and 3 we recognize the usual elements of the winding and time setting device, either the rod 3 which is guided in holes 9 and 10 of the plate 11 and the bracket 12, the winding pinion 13 , mounted on a cylindrical bearing surface of the stem and provided with the usual bréguet toothing, the sliding pinion 14 mounted on the square 15 of the stem, and the time setting reference 16 pivoting on a bearing screw 17.
A la figure 2 la tige 3 est en position usuelle, enfoncée. Le pignon coulant 14 est en prise avec le pignon de remontoir 13, tandis qu'à la figure 3 la tige est tirée en position de mise à l'heure et le pignon coulant 14 est déplacé pour engrener avec le renvoi 16. La tirette et la bascule ne sont pas représentées.In Figure 2 the rod 3 is in the usual position, pressed. The sliding pinion 14 is engaged with the winding pinion 13, while in FIG. 3 the rod is pulled into the time setting position and the sliding pinion 14 is moved to mesh with the reference 16. The pull tab and the seesaw is not shown.
Le moyen de liaison entre le dispositif qui vient d'être décrit et le dispositif correcteur de raquette de la figure 1 se compose en fait de quatre pièces : l'anneau de liaison 4 déjà mentionné, une douille 18, un doigt de guidage et de blocage 19, et une double rondelle à ressort 20 qui assure un accouplement à friction entre la tige 3 et la douille 18.
La tige 3 présente, en avant de la collerette 21 limitant la gorge 22 dans laquelle est engagé le plot de tirette, une portée cylindrique 23 sur laquelle la douille 18 est engagée. La friction est réalisée d'une part par l'ajustage de cette portée par rapport au trou de la douille et d'autre part par la double rondelle 20 qui s'appuie sur la douille et sur l'epaulement terminal de la couronne 24, représentée schématiquement aux figures 2 et 3.The connecting means between the device which has just been described and the racket correcting device of FIG. 1 is in fact made up of four parts: the connecting ring 4 already mentioned, a socket 18, a guide finger and blocking 19, and a double spring washer 20 which provides a friction coupling between the rod 3 and the bush 18. The rod 3 has, in front of the flange 21 limiting the groove 22 in which the pull tab stud is engaged, a cylindrical surface 23 on which the sleeve 18 is engaged. The friction is produced on the one hand by adjusting this bearing with respect to the hole in the bushing and on the other hand by the double washer 20 which rests on the bushing and on the terminal shoulder of the crown 24, shown schematically in Figures 2 and 3.
L'anneau 4 est engagé dans une gorge de la platine. Il peut être retenu par des brides. Dans la zone du dispositif de remontoir il présente sur une partie de sa longueur une denture 25 à dents triangulaires en saillie dans la direction parallèle à l'axe du mouvement. Cette denture est également visible aux figures 4 et 5. On voit qu'elle passe immédiatement au-dessus de la douille 18.The ring 4 is engaged in a groove in the plate. It can be retained by flanges. In the area of the winding device, it has over part of its length a toothing 25 with triangular teeth projecting in the direction parallel to the axis of the movement. This toothing is also visible in FIGS. 4 and 5. It can be seen that it passes immediately above the socket 18.
La douille 18 est une pièce relativement compliquée, qui peut être en matière frittée ou moulée, bien qu'une fabrication par usinage soit également possible. Elle a la forme générale d'un manchon cylindrique dont la partie de plus grand diamètre est échancrée (figure 6) de manière à présenter deux surfaces de came 26 symétriques et de forme hélicoïdale, divisées elles-mêmes en une partie principale 26a dont l'inclinaison sur l'axe est relativement faible, une partie intermédiaire 26b dont l'inclinaison est plus forte et une partie finale ou zone d'entrée 26c où la surface hélicoïdale se transforme en un plan passant par l'axe du manchon. En outre, sur la génératrice opposée à l'entrée, la douille 18 présente une nervure 27 dont le profil, triangulaire, est ajusté aux entre-dents de la denture de l'anneau 4.The sleeve 18 is a relatively complicated part, which can be made of sintered or molded material, although manufacturing by machining is also possible. It has the general shape of a cylindrical sleeve whose part of larger diameter is notched (FIG. 6) so as to present two cam surfaces 26 symmetrical and of helical shape, themselves divided into a main part 26a, the inclination on the axis is relatively small, an intermediate part 26b whose inclination is greater and a final part or entry zone 26c where the helical surface is transformed into a plane passing through the axis of the sleeve. In addition, on the generator opposite the inlet, the bush 18 has a rib 27 whose triangular profile is adjusted to the between-teeth of the teeth of the ring 4.
Finalement le doigt 19 est planté dans un logement de la platine de manière à être situé exactement dans l'entrée 26c de la douille 18 quand la tige 3 est en position usuelle, de remontage. Sa section est circulaire, toutefois une section polygonale peut aussi être prévue. La douille étant elle-même
serrée par le ressort 20 entre la collerette de la tige et l'epaulement de la couronne, les ajustages seront réalisés de manière que dans cette position toute rotation de la couronne soit sans effet sur la douille et par conséquent sur l'anneau 4.Finally the finger 19 is planted in a housing of the plate so as to be located exactly in the inlet 26c of the sleeve 18 when the rod 3 is in the usual position, for reassembly. Its section is circular, however a polygonal section can also be provided. The socket being itself clamped by the spring 20 between the collar of the rod and the shoulder of the crown, the adjustments will be made so that in this position any rotation of the crown has no effect on the bushing and consequently on the ring 4.
Le fonctionnement du mécanisme décrit résulte des figures 3 et 5. Lorsque le porteur de la montre tire la tige 3 en position de mise à l'heure, la douille 18, accouplée rigidement à la tige dans le sens axial, se déplace et se libère du doigt 19 et de la denture 25. Tout mouvement de rotation déplace la douille en même temps que les aiguilles. Il suffit que l'amplitude de ce déplacement soit supérieure au demi-pas de la denture de l'anneau 4 pour que, lors du retour de la tige dans la position de la figure 2, une des branches de la surface de came 26 accroche le doigt 19 alors que la pointe de la nervure pénètre dans la denture de l'anneau 4. La rotation imposée à la douille déplace l'anneau et par conséquent agit sur la position de la raquette. La correction de marche sera égale à un pas de la denture de l'anneau 4 dans un sens ou dans l'autre selon le sens du déplacement des aiguilles. On remarque que ce résultat est atteint même si la correction de la position des aiguilles a été faite en plusieurs mouvements, et même si un premier mouvement a eu lieu dans un sens erroné. Seule compte la position de la douille au moment où on repousse la tige en position de remontage. D'autre part on évite toute correction de marche dans le cas où les aiguilles ont été déplacées pour effectuer un changement de fuseau horaire ou d'heure officielle (heure d'été - heure d'hiver) si les rapports d'engrenages sont choisis de manière qu'un écart d'une heure (ou éventuellement d'une demi-heure ou de toute fraction entière d'heure) corresponde exactement à une rotation d'un tour de la tige 3.The operation of the mechanism described results from FIGS. 3 and 5. When the wearer of the watch pulls the rod 3 in the time setting position, the sleeve 18, rigidly coupled to the rod in the axial direction, moves and is released. of the finger 19 and of the toothing 25. Any rotational movement displaces the sleeve at the same time as the needles. It suffices that the amplitude of this displacement is greater than the half-pitch of the toothing of the ring 4 so that, when the rod returns to the position in FIG. 2, one of the branches of the cam surface 26 catches the finger 19 while the tip of the rib enters the teeth of the ring 4. The rotation imposed on the sleeve moves the ring and therefore acts on the position of the racket. The walking correction will be equal to one step of the toothing of the ring 4 in one direction or the other depending on the direction of movement of the hands. It is noted that this result is achieved even if the correction of the position of the hands was made in several movements, and even if a first movement took place in the wrong direction. The only thing that matters is the position of the socket when the rod is pushed back into the reassembly position. On the other hand, any gait correction is avoided in the case where the hands have been moved to make a change of time zone or official time (summer time - winter time) if the gear ratios are chosen so that a difference of one hour (or possibly half an hour or any whole fraction of an hour) corresponds exactly to a rotation of one revolution of the rod 3.
Les figures 1 à 6 représentent une forme d'exécution préférée de l'invention. Cependant l'effet d'ajustage automatique de la marche lors de toute correction de la position des aiguilles peut aussi être atteint avec certaines
variantes de réalisation. Ainsi au lieu que la raquette 2 présente la rampe 7, cette rampe pourrait aussi être prévue sur l'anneau 4, la raquette 2 étant alors équipée de la tige 5. D'ailleurs l'anneau 4 pourrait aussi se trouver à l'intérieur du mouvement ou sur le côté des ponts.Figures 1 to 6 show a preferred embodiment of the invention. However, the effect of automatic gait adjustment when correcting the position of the hands can also be achieved with certain variant embodiments. So instead of the racket 2 having the ramp 7, this ramp could also be provided on the ring 4, the racket 2 then being equipped with the rod 5. Besides, the ring 4 could also be located inside of movement or on the side of the bridges.
D'autre part au lieu de la denture à profil triangulaire décrite l'anneau de liaison 4 pourrait aussi être pourvu d'une denture de chant, ou de dents dirigées axialement mais de forme ogivale.On the other hand, instead of the triangular profile toothing described, the connecting ring 4 could also be provided with edge teeth, or teeth axially directed but of ogival shape.
Dans la variante de la figure 7, au lieu de la douille 18 montée à friction sur la tige, de la nervure 27 et du doigt 19 fixe, le mécanisme comporte une came fixe 28, par exemple solidaire de la platine 11 avec ses deux surfaces hélicoïdales, dont l'une 28a est visible. La douille 18 est remplacée par un manchon cylindrique 29 monté sur la tige de remontoir 3. Ce manchon, solidaire axialement de la tige, mais accouplé à friction à cette dernière dans le sens rotatif, porte un seul doigt 30 en saillie radialement, coopérant d'une part avec la came fixe 28, et d'autre part avec la denture 31 de l'anneau 4, dont les dents, de forme ogivale, sont placées de chant. Le manchon 29 pourrait aussi porter deux doigts différents, remplissant chacun une des fonctions indiquées.In the variant of FIG. 7, instead of the bush 18 frictionally mounted on the rod, the rib 27 and the fixed finger 19, the mechanism comprises a fixed cam 28, for example integral with the plate 11 with its two surfaces helical, one of which 28a is visible. The sleeve 18 is replaced by a cylindrical sleeve 29 mounted on the winding rod 3. This sleeve, axially integral with the rod, but frictionally coupled to the latter in the rotary direction, carries a single finger 30 projecting radially, cooperating with on the one hand with the fixed cam 28, and on the other hand with the toothing 31 of the ring 4, whose teeth, of ogival shape, are placed on edge. The sleeve 29 could also carry two different fingers, each fulfilling one of the functions indicated.
Enfin dans une exécution analogue à celle des figures 2 à 5, la nervure axiale de la douille 18 pourrait aussi être remplacée par un doigt planté radialement et engrenant avec des dents ogivales de l'anneau 4.Finally, in an execution similar to that of FIGS. 2 to 5, the axial rib of the sleeve 18 could also be replaced by a finger planted radially and meshing with ogival teeth of the ring 4.
Tels que représentés schématiquement sur le dessin, les doigts 19 et 30 ont des extrémités droites. Toutefois, selon un mode d'exécution préférentiel, ces doigts comportent des extrémités de forme arrondie ou pointue.
As shown schematically in the drawing, the fingers 19 and 30 have straight ends. However, according to a preferred embodiment, these fingers have ends of rounded or pointed shape.
Claims
1. Mécanisme correcteur de marche automatique, associé à un dispositif de remontoir et de mise à l'heure dans un mouvement de montre mécanique avec une raquette et une tige de remontoir mobile en rotation autour de son axe et prenant plusieurs positions axiales, ce mécanisme comportant un organe de liaison (4) rigide, mobile sous l'effet de déplacements de la tige (3) et transmettant ses déplacements sans jeu à la raquette, caractérisé en ce que le mécanisme comprend un organe de commande (18; 29) monté sur la tige (3), accouplé à friction à celle-ci dans le sens rotatif et lié à elle dans le sens axial, un élément de commande (27; 30) solidaire de l'organe de commande et coopérant avec l'organe de liaison (4), et des moyens de guidage (26a, 19; 28a, 30) qui contrôlent des déplacements de l'élément de commande (27; 30) provoqués par un mouvement axial de retour de la tige d'une position initiale de mise à l'heure à une position usuelle ou de remontage, ces déplacements de l'élément de commande ayant une trajectoire telle que: ou bien l'organe de liaison et la raquette se déplacent d'un incrément dans une direction correspondant à celle d'un mouvement préalable de rotation effectué par la tige dans ladite position initiale de mise à l'heure, ou bien l'organe de liaison et la raquette restent immobiles.1. Automatic correcting mechanism, associated with a winding and time-setting device in a mechanical watch movement with a racket and a mobile winding rod rotating around its axis and taking several axial positions, this mechanism comprising a rigid connecting member (4), mobile under the effect of displacements of the rod (3) and transmitting its displacements without play to the racket, characterized in that the mechanism comprises a control member (18; 29) mounted on the rod (3), frictionally coupled thereto in the rotary direction and connected to it in the axial direction, a control element (27; 30) integral with the control member and cooperating with the link (4), and guide means (26a, 19; 28a, 30) which control displacements of the control element (27; 30) caused by an axial movement of return of the rod from an initial position of setting the time to a usual position or winding, these d displacements of the control element having a trajectory such that: either the connecting member and the racket move in an increment in a direction corresponding to that of a prior movement of rotation carried out by the rod in said initial position setting the time, or the connecting member and the racket remain stationary.
2. Mécanisme selon la revendication 1, caractérisé en ce que l'organe de liaison (4) comporte un anneau coaxial au mouvement, monté sur le bâti de ce dernier et présentant sur une partie de sa longueur une denture (25; 31) dans laquelle ledit élément de commande (27; 30) engrène lors dudit mouvement de retour, et en ce qu'un doigt (5) solidaire de l'anneau est lié sans jeu à la queue de la raquette (2) .2. Mechanism according to claim 1, characterized in that the connecting member (4) comprises a ring coaxial with the movement, mounted on the frame of the latter and having over part of its length a toothing (25; 31) in which said control element (27; 30) meshes during said return movement, and in that a finger (5) secured to the ring is connected without play to the tail of the racket (2).
3. Mécanisme selon la revendication 1 ou la revendication 2, caractérise en ce que l'organe de commande (18; 29) est une douille montée à friction sur la tige (3), entre une collerette de cette dernière et un élément élastique (20) agissant axialement, et en ce que les moyens de guidage comportent une came (26; 28) ayant une surface active (26a, 26b; 28a) formée de deux branches d'helicoïdes symétriques et coaxiales à la tige (3), et un élément de guidage (19; 30) coopérant avec la came pour imprimer à l'élément de commande (27; 30) un mouvement de rotation en réponse à un déplacement axial de la tige (3) .3. Mechanism according to claim 1 or claim 2, characterized in that the control member (18; 29) is a sleeve frictionally mounted on the rod (3), between a collar of the latter and an elastic element (20) acting axially, and in that the guide means comprise a cam (26; 28) having an active surface (26a, 26b; 28a) formed by two branches of helicoids symmetrical and coaxial with the rod (3), and a guide element (19; 30) cooperating with the cam to impart to the control element (27; 30) a rotational movement in response to an axial movement of the rod (3).
4. Mécanisme selon la revendication 3, caractérisé en ce que la came (26) et la douille (18) sont deux parties d'une même pièce, en ce que l'élément de guidage (19) est un doigt solidaire du bâti du mouvement, et en ce que l'élément de commande (27) est une nervure longitudinale de la douille (18) .4. Mechanism according to claim 3, characterized in that the cam (26) and the sleeve (18) are two parts in one piece, in that the guide element (19) is a finger integral with the frame of the movement, and in that the control element (27) is a longitudinal rib of the sleeve (18).
5. Mécanisme selon la revendication 4, caractérisé en ce que l'anneau (4) présente des dents de profil triangulaire dont les sommets sont des lignes droites orientées radialement par rapport au centre de l'anneau, et en ce que la nervure5. Mechanism according to claim 4, characterized in that the ring (4) has teeth of triangular profile whose vertices are straight lines oriented radially with respect to the center of the ring, and in that the rib
(27) formant l'élément de commande est de profil triangulaire et s'étend selon une génératrice de la douille (18) , le tout étant agencé de manière qu'un mouvement de retour de la tige d'une position de mise à l'heure à la position usuelle provoque une rotation et un déplacement axial de la douille et un déplacement de l'anneau sur une distance maximale d'un pas de sa denture.(27) forming the control element is of triangular profile and extends along a generatrix of the sleeve (18), the whole being arranged so that a return movement of the rod from a setting position to the time in the usual position causes rotation and axial displacement of the sleeve and displacement of the ring over a maximum distance of one step from its teeth.
6. Mécanisme selon la revendication 3, caractérisé en ce que la came (28) est une pièce fixe solidaire du bâti du mouvement et en ce que l'élément de commande et l'élément de guidage sont deux parties d'un même doigt (30) dirigé radialement et solidaire de la douille (29) .6. Mechanism according to claim 3, characterized in that the cam (28) is a fixed part integral with the frame of the movement and in that the control element and the guide element are two parts of the same finger ( 30) directed radially and integral with the sleeve (29).
7. Mécanisme selon la revendication 3, caractérisé en ce que chaque branche d'hélicoïde de la came est formée de deux portions successives ayant des inclinaisons différentes, et d'une entrée axiale. 7. Mechanism according to claim 3, characterized in that each helical branch of the cam is formed of two successive portions having different inclinations, and an axial inlet.
8. Mécanisme selon la revendication 2, caractérisé en ce que l'anneau est monté à frottement gras sur la platine, et porte, au droit de la raquette, une tige rigide traversant le mouvement de manière à coopérer sans jeu avec une rampe formée sur la queue de la raquette.8. Mechanism according to claim 2, characterized in that the ring is mounted with greasy friction on the plate, and carries, in line with the racket, a rigid rod crossing the movement so as to cooperate without play with a ramp formed on the tail of the racket.
9. Mouvement de montre mécanique comportant un mécanisme correcteur selon l'une des revendications 1 à 8. 9. Mechanical watch movement comprising a corrective mechanism according to one of claims 1 to 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP96930011A EP0852757A1 (en) | 1995-09-28 | 1996-09-26 | Automatic operation correction device for a winding and hand setting device in a mechanical watch movement |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH2740/95 | 1995-09-28 | ||
| CH274095 | 1995-09-28 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO1997012297A1 true WO1997012297A1 (en) | 1997-04-03 |
Family
ID=4240552
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/CH1996/000334 WO1997012297A1 (en) | 1995-09-28 | 1996-09-26 | Automatic operation correction device for a winding and hand setting device in a mechanical watch movement |
Country Status (2)
| Country | Link |
|---|---|
| EP (1) | EP0852757A1 (en) |
| WO (1) | WO1997012297A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103293942A (en) * | 2012-03-01 | 2013-09-11 | 亿科钟表科技（深圳）有限公司 | Mechanical wrist watch |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH31774A (en) * | 1904-07-13 | 1905-05-15 | Adolf Feilcke | Remontoir watch, on which the index pointer can be adjusted from the winding button |
| CH336008A (en) * | 1958-01-15 | 1959-01-31 | Morf Ernest | Device for controlling the racquet of a watch from outside the box and use of this device |
| US3099129A (en) * | 1960-10-05 | 1963-07-30 | Gen Time Corp | Automatic regulation mechanism for timepieces |
| GB1397492A (en) * | 1972-05-16 | 1975-06-11 | Citizen Watch Co Ltd | Timepiece |
-
1996
- 1996-09-26 EP EP96930011A patent/EP0852757A1/en not_active Withdrawn
- 1996-09-26 WO PCT/CH1996/000334 patent/WO1997012297A1/en not_active Application Discontinuation
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH31774A (en) * | 1904-07-13 | 1905-05-15 | Adolf Feilcke | Remontoir watch, on which the index pointer can be adjusted from the winding button |
| CH336008A (en) * | 1958-01-15 | 1959-01-31 | Morf Ernest | Device for controlling the racquet of a watch from outside the box and use of this device |
| US3099129A (en) * | 1960-10-05 | 1963-07-30 | Gen Time Corp | Automatic regulation mechanism for timepieces |
| GB1397492A (en) * | 1972-05-16 | 1975-06-11 | Citizen Watch Co Ltd | Timepiece |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103293942A (en) * | 2012-03-01 | 2013-09-11 | 亿科钟表科技（深圳）有限公司 | Mechanical wrist watch |
Also Published As
| Publication number | Publication date |
|---|---|
| EP0852757A1 (en) | 1998-07-15 |
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