EP1708052A1 - Clockwork - Google Patents

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Publication number
EP1708052A1
EP1708052A1 EP05102561A EP05102561A EP1708052A1 EP 1708052 A1 EP1708052 A1 EP 1708052A1 EP 05102561 A EP05102561 A EP 05102561A EP 05102561 A EP05102561 A EP 05102561A EP 1708052 A1 EP1708052 A1 EP 1708052A1
Authority
EP
European Patent Office
Prior art keywords
frame
winding
pull tab
movement
movement 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
Application number
EP05102561A
Other languages
German (de)
French (fr)
Other versions
EP1708052B1 (en
Inventor
Laurent Ryter
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Montres Corum SA
Original Assignee
Montres Corum SA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Montres Corum SA filed Critical Montres Corum SA
Priority to DE602005006734T priority Critical patent/DE602005006734D1/en
Priority to EP05102561A priority patent/EP1708052B1/en
Priority to US11/393,948 priority patent/US7494269B2/en
Priority to JP2006096776A priority patent/JP2006284585A/en
Publication of EP1708052A1 publication Critical patent/EP1708052A1/en
Application granted granted Critical
Publication of EP1708052B1 publication Critical patent/EP1708052B1/en
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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    • G—PHYSICS
    • G04—HOROLOGY
    • G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
    • G04B29/00—Frameworks
    • G04B29/02—Plates; Bridges; Cocks
    • 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
    • G04B27/00—Mechanical devices for setting the time indicating means
    • G04B27/02—Mechanical devices for setting the time indicating means by making use of the winding means
    • G04B27/06—Mechanical devices for setting the time indicating means by making use of the winding means with rocking bar

Definitions

  • the present invention relates to a watch movement, in particular the constituent parts of its time setting mechanism.
  • the time is set by means of a time setting rod.
  • the latter is held in place by a puller which ensures, moreover, the displacement of other component parts of the mechanism that allow setting the time of the watch when the rod is in the pulled position.
  • the main object of the present invention is to overcome the disadvantage of the abovementioned prior art by proposing, alternatively, a movement for a timepiece having a reduced bulk, at least in a direction other than its thickness, and comprising a time setting crown accessible while the watch is worn on the wrist.
  • the present invention relates in particular to such a movement, preferably rod type, wherein the time setting rod is oriented in the longitudinal direction of the movement and has a relatively short portion within the movement.
  • the time setting ring is arranged on one side of the box and is, therefore, accessible while the watch is worn on the wrist.
  • a further object of the present invention is to ensure good stability of the elements of the time setting mechanism despite the small dimensions of the frame elements, such as the plate or the bridges.
  • the pull tab comprises a board resting mainly on the plate, dial side, and is held in place by a pivot member, typically a pull screw disposed through the plate, its head being located on the bridge side.
  • the foot of the screw carries a thread cooperating with a tapped hole in a hole of the drawbar, the screw defining a pivot axis of the pull tab.
  • a first end of the pull tab comprises a stud engaged in a groove of the winding stem to maintain it in place in the movement.
  • the second end of the pull tab acts on a rocker controlling the displacement of a sliding pinion.
  • the winding stem makes it possible to raise a mainspring by a rotational movement.
  • the winding stem drives the first end of the pull-tab that pivots on the drawbar screw and acts on the rocker to move the sliding pinion.
  • the winding stem can then be manipulated to set the time of movement.
  • this conventional structure is poorly adapted to maintaining the pull relative to its pivot axis, particularly when the plate has reduced dimensions and offers only a small surface for the support of the pull.
  • the present invention relates more precisely to a watch movement of the type described above, characterized in that the pivoting member comprises first and second pivots arranged on either side of the drawbar and engaged in the frame. .
  • the positioning of the axis of rotation of the zipper is improved and ensures the reliability of the passage between the functions of reassembly of the movement and setting time when the movements of the winding stem following its axial direction.
  • the present invention also provides additional means for improving the guidance of the time setting rod.
  • FIG. 1 represents a simplified exploded view of a part of the watch movement, shown on the bridge side, according to a preferred embodiment of the present invention
  • FIG. 2 shows a simplified top view of the portion of the movement shown in Figure 1, when its constituent elements are assembled;
  • FIG. 3 is a view from above, on the dial side, of the movement of FIG. 1, when it is complete;
  • FIG. 4a is a simplified cross-sectional view of a first construction detail of the movement shown in the preceding figures, taken along the line L1 of Figure 1;
  • FIG. 4b is a simplified cross-sectional view of a second construction detail of the movement represented in the preceding figures, taken along the line L2 of FIG. 2, and
  • FIG. 5 is a simplified cross-sectional view of a third constructional detail of the movement represented in the preceding figures, according to a preferred variant embodiment, the section being taken along the line L3 of FIG. 2.
  • Figure 1 shows an exploded portion of a clockwork movement provided with a time setting mechanism according to the invention.
  • This movement comprises a plate 1 which has a generally elongated shape delimited by a first and a second transverse end portions 2 and 3, whose width corresponds to the width of the assembled movement.
  • the first end portion 2 comprises two pins 4, 5 intended to assemble elements constituting the mechanism for setting the time of movement.
  • the first end portion 2 has a recess 6, between the two pins 4 and 5, in which is arranged a winding puller 7.
  • the pull tab 7 includes a board formed of a first portion 8 and a second portion 15.
  • the portion 8 carries, at a first free end 9, a first pin 10 winding stem. It has a tapped hole 11 intended to cooperate with a screw threaded screw portion 12, and a bend 13, at a distance from the first stud 10, followed by a curved tongue 14.
  • the second zipper portion 15, of lesser thickness that that of the first portion, extends in the extension of the tongue 14 to a second free end 16, carrying a second stud 17.
  • a puller 20 is engaged on the pin 4 by a first main hole 21.
  • An additional pin 22 of the plate 1 is provided for cooperate with a second hole 23 for positioning the puller puller.
  • the pull rod 20 has an elongated and curved shape ending in a spout 24 intended to cooperate with the curved tongue 14 of the pull tab to ensure the positioning of the latter.
  • a spring 25 is also engaged on the pins 4 and 22, to act through a spout 26, with the barrel ratchet (visible in Figure 3).
  • An intermediate bridge 27 provided in particular with two holes 29 adapted to cooperate with the tenons 4 and 5 is mounted on the plate 1. It comprises a hole 30 of axis parallel to the longitudinal direction of the movement, of generally cylindrical shape and opening into its face located opposite the plate (visible in Figure 4a).
  • the hole 30 is intended to accommodate and position the winding stem 28, with the interposition of a ring 31 slotted over its entire length, of diameter slightly less than the diameter of the hole 30.
  • the rod 28 comprises a cylindrical portion 28a, cooperating with the tube 31, which allows its pivoting and its translation with reference to the bridge 27.
  • the rod 28 has a groove 32 in which the stud 10 of the pull tab 7 is engaged when the winding mechanism is assembled.
  • a square 33 is formed following the cylindrical portion 28a, the latter extending to the end of the rod 28 located in the movement.
  • a winding pinion 34 having a hole 34a, adapted to cooperate with the square 33 of the winding stem, is disposed adjacent to the intermediate bridge 27 by being mounted on the winding stem 28. More precisely, the square 33 and the hole 34a are arranged so that a rotation of the rod 28 rotates the pinion 34, while allowing a translation of one relative to the other.
  • An additional element, adjacent to the intermediate bridge 27, is provided to ensure that the stem 28 and the winding pinion 34 are held in their respective positions. It comprises a hole 36 inside which engages the square 33.
  • the winding pinion 34 is held axially in the space between the bridge 27 and the element 35.
  • the latter also has ears 37 intended for partially cover the intermediate bridge 27, the latter carrying tubes 38 extending in direction of the plate 1 to engage in the holes 29 of the intermediate bridge 27 and surround the pins 4 and 5.
  • the tubes 38 make it possible to guarantee the correct positioning of the additional element 35 both with respect to the intermediate bridge 27 and relative to the plate 1, through the pins 4 and 5.
  • Two screws 39 are inserted into the tubes 38 of the additional element 35, to cooperate with threads formed inside the pins 4 and 5, and assemble the elements just described.
  • the drawbar screw 12 is housed inside a hole 40 formed in the intermediate bridge 27. It defines the axis of rotation of the pull tab 7. It is provided with a thread 41 intended to cooperate with the hole 11 of the zipper, in known manner.
  • the plate 1 has, between its two ends 2 and 3, a plurality of locations, holes and bearings intended to carry conventional components of watch movement which will not be described in detail in the present description to the extent that they do not directly concern the heart of the invention.
  • Figure 2 shows a top view of the part of the movement shown in Figure 1, when its constituent elements are assembled.
  • the plate 1 comprises a hole 50 intended to house the barrel of movement and arranged near its first end 2.
  • the rocker 19 carries a first reference 51 of time setting, engaged, in the position shown in this figure, with a second reference 52, itself engaged with a third reference 53.
  • the second and third references 52, 53 are arranged at the bottom of the barrel core 50.
  • a plate 54 for positioning the spring 25 has also been shown, which makes it possible to maintain the spring 25 in the direction of the thickness of the movement.
  • rocker 19 carries a winding reference 55, intended to mesh with the barrel ratchet (visible in Figure 3) during winding operations of the barrel spring.
  • a tube 56 of which only one end is visible in this figure, is arranged through the plate 1 to define a pivot for the rocker 19.
  • Figure 3 shows a top view of the dial side of the complete movement according to the preferred embodiment of the present invention.
  • a crown wheel 69 coaxial with the tube 56 on which the rocker pivots, is arranged in permanent engagement with the winding pinion 34. Furthermore, it meshes permanently with a first clocking wheel 70, which causes a second hour-setting wheel 71.
  • the second intermediate hour-setting wheel 71 is mounted coaxially and secured to the first time-setting reference 51, the latter being disposed on the bridge side of the rocker, as previously mentioned in connection with Figure 3.
  • the crown wheel 69 meshes, moreover, permanently with an intermediate wheel 72, coaxially mounted and secured to the winding return 55, the latter being located on the bridge side of the rocker.
  • the rocker 19 has two arms 73, spaced from its pivot axis and on either side thereof, extending to the first end 2 of the plate 1. Each of the free ends (not visible) arms 73 is held in a groove (not visible) of the plate 1 by plates 74, in order to improve the stability and guidance of the rocker 19, in particular when it is in one or the other setting and winding positions.
  • FIGS. 4a and 4b showing sectional views of construction details of the movement that has just been described, make it possible to better understand how the pivoting of the rocker 19 is controlled thanks to the particular structure of the pull tab 7.
  • FIG. 4a shows a cross-sectional view taken along a plane perpendicular to the mean plane of the plate 1 and containing the line referenced L1 in FIG. 1.
  • the first portion 8 of the pull tab 7 is particularly apparent in this figure.
  • the drawbar screw 12 is here represented in its operative position, that is to say when it is inserted into the hole 40 of the intermediate bridge 27, and then screwed into the hole 11 of the pull-rod 7. The screwing of the screw in the pull tab is performed until the pull tab is in abutment against the cylindrical portion 75 of the screw housed in the intermediate bridge 27.
  • the pull tab is positioned in a direction substantially parallel to the average plane of the plate 1, defining a clearance between it and the recess 6 of the plate.
  • the first portion 8 of the pull tab is not supported by the turntable when the pull tab is in its operative position.
  • the stud 10 of the pull tab is in place, inside the groove 32 of the winding stem 28.
  • the pull tab is driven by the movements of the winding stem in its axial direction, which causes the pivoting of the zipper on the screw 12 zipper.
  • the screw 12 has a zipper free end 42 extending beyond the thread 41 and housed in a hole 43 of the plate 1 to form a pivot.
  • the plate 1 having a small footprint, does not support a large part of the board of the zipper as is the case in conventional movements.
  • the improvement in the stability of the drawbar screw 12 compensates for the failure to hold the pull tab 7 by the plate 1.
  • a bridge 76 is mounted on the intermediate bridge 27, this bridge extending between the first and second ends 2 and 3 of the plate 1, in a manner similar to that described in the patent CH 623 192 supra.
  • the bridge 76 is secured to the intermediate bridge by two screws 77 of which only one is visible in Figure 4a.
  • the bridge 76 has a hole 78 for access to the head of the pull screw 12 having two successive portions, of different diameters, defining between them a shoulder 79 inside the hole 78.
  • the head of the screw 12 of The pull tab comprises two successive portions, of which a first end 80, with a first diameter and a second 81, of a second diameter greater than the diameter of the first portion and the diameter of the shoulder 79. Therefore, when the bridge 76 is put in place on the intermediate bridge 27, the screw 12 zipper can not be removed from its location. However, the head of the screw zipper 12 is accessible from the upper face 82 of the bridge 76, to allow to unscrew the zipper screw and release the winding stem, in a conventional manner, to proceed to dislodge the movement. During such an operation, the unscrewing of the drawbar screw 12 causes translation of the pull tab in the clearance, in the direction of the plate 1, since the screw 12 remains in its axial service position in which it is held by the bridge 76.
  • FIG. 4b shows a cross-sectional view of the pull tab 7, in a plane perpendicular to the plane of FIG. 2 and containing the line referenced L 2, making the support defect offered by the plate 1 to the pull tab 7 more visible, as well as the interaction of the latter with the rocker 19.
  • the pull tab rests almost entirely on the plate
  • the entire second portion 15 of the pull tab 7 rests neither on the plate 1 nor on any other fixed part of the movement.
  • the stability and the positioning of the pull tab 7 are ensured to enable it to fulfill its main function, namely to control the pivoting movements of the flip-flop 19.
  • the pull tab 7 is connected to the groove 18 of the flip-flop 19 by its stud 17.
  • the zipper can also take two extreme positions, one winding, the other setting time.
  • the particular shape of the groove 18 defines stops corresponding to the extreme positions of the pull tab.
  • any rotational movement of the winding stem causes a rotation of the barrel ratchet 68 to raise the spring of the barrel 67. More specifically, it is preferably provided to in known manner, a snap between the intermediate wheel 72 and the return 55.
  • the barrel ratchet 68 is driven only during the rotational movements of the winding stem clockwise, under the combined effect of the action of the spring 25 on the barrel ratchet 68 and the snap (not shown).
  • the stud 17 exerts a force on the groove 18 of the rocker 19 causing a pivoting thereof around the tube 56.
  • the first return 51 is close to the plate 1 while that the winding return 55 departs from it.
  • the first reference 51 comes into contact with the second reference 52 for setting the time, while the reference 55 is separated from the barrel ratchet 68.
  • FIG. 5 represents a preferred variant of the movement according to the present invention in a cross-sectional view along a plane perpendicular to the plane of FIG. 2 and containing the line L3.
  • the winding pinion 34 comprises a barrel 34b coaxial with the hole 34a and oriented towards the inside of the movement.
  • the outer diameter of the barrel 34b is slightly smaller than the diameter of the hole 36 of the additional member 35, inside which it is inserted.
  • the internal section of the barrel 34b is identical to the section of the hole 34a, so that the inner shape of the barrel 34b is substantially complementary to that of the square 33 of the winding stem 28.
  • the respective dimensions of the barrel 34b and the square 33 are such as a light game is preferably arranged between them.
  • the tube 56 has a tapped central hole cooperating with the foot of a bearing screw 83 engaged in the plate 1 from its dial side.
  • a post 84 is arranged around the tube 56, being interposed between the head of the screw 83 and the plate 1 in order to ensure the positioning of the screw relative to the plate. Since the head of the screw 83 is relatively wide relative to its foot, the portion between the two seats makes it possible to reinforce its rigidity. On the other hand, it is found that the tenon 84 has two spans between which is disposed the rocker 19, free in rotation, to ensure a maintenance of the latter in the axial direction.
  • the pin 84 has a bearing surface 85 against which is mounted the ring gear 69 is free to rotate relative to the axis of the tube 56.
  • the axial retention of the crown wheel 69 is also provided by the head of the screw at range 83, while its centering is provided by the stud 84.
  • the screw 12 could be replaced by a rod driven into the pull tab 7, and held axially by the bridge 76, while a spring pressing against the pull rod would maintain the stud 10 engaged in the groove 32. A pressure on the rod then deform the spring and would clear the rod 28 of the zipper.

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Abstract

The movement has a winding setting lever (7) carrying a setting lever screw (12) which defines the axis of rotation of the lever. The lever has a plate formed of two portions (8, 15), where the portion (8) has a stud (10) cooperating with a winding stem (28) mounted on an intermediate bridge (27) to limit the translation movement of the stem. The screw has a cylindrical portion (75) and a free end (42) forming the respective journals disposed on both sides of the plate of the lever. The portion (75) is housed in the bridge and the end (42) is housed in a hole (43) of a main plate (1).

Description

Domaine techniqueTechnical area

La présente invention concerne un mouvement horloger, en particulier des parties constitutives de son mécanisme de mise à l'heure.The present invention relates to a watch movement, in particular the constituent parts of its time setting mechanism.

Etat de la techniqueState of the art

Dans les mouvements d'horlogerie utilisés dans les montres, et plus particulièrement dans les montres bracelet, la mise à l'heure s'effectue au moyen d'une tige de mise à l'heure. Cette dernière est maintenue en place par une tirette qui assure, par ailleurs, le déplacement d'autres pièces constitutives du mécanisme qui permettent la mise à l'heure de la montre lorsque la tige est en position tirée.In watch movements used in watches, and more particularly in wristwatches, the time is set by means of a time setting rod. The latter is held in place by a puller which ensures, moreover, the displacement of other component parts of the mechanism that allow setting the time of the watch when the rod is in the pulled position.

Pour que ces fonctions puissent s'effectuer de manière sûre, il est nécessaire que la tige soit bien guidée dans le bâti du mouvement et que la tirette ait une bonne assise, ce qui garantit la bonne tenue de la tige par la tirette.For these functions to be carried out safely, it is necessary that the rod is well guided in the frame of the movement and that the zipper has a good seat, which ensures the good behavior of the rod by the zipper.

Dans certains types de mouvements, comme celui décrit dans le brevet CH 623 192, délivré le 29 mai 1981 au nom de la Demanderesse, la solution décrite ci-dessus ne peut être appliquée, à cause de contraintes de construction qui empêcheraient un bon guidage de la tige et une assise suffisante d'une éventuelle tirette. Ce mouvement est de forme baguette comportant trois ponts étroits, en formes de barrettes, superposés et assemblés par des vis agencées au travers de leurs extrémités. La place y manque pour assurer les fonctions évoquées ci-dessus. C'est pourquoi ce mouvement est équipé d'un mécanisme de mise à l'heure dont la tige est disposée dans le fond de la boite, de telle sorte que son axe est parallèle à ceux des aiguilles. Cette solution implique obligatoirement que la montre doit être retirée du bras pour assurer le remontage et la mise à l'heure.In certain types of movements, such as that described in the patent CH 623,192, issued May 29, 1981 in the name of the Applicant, the solution described above can not be applied, because of construction constraints that prevent good guidance of the rod and sufficient seating of a possible pull. This movement is rod-shaped having three narrow bridges, in the form of bars, superimposed and assembled by screws arranged through their ends. There is not enough room to perform the functions mentioned above. That is why this movement is equipped with a time setting mechanism whose rod is arranged in the bottom of the box, so that its axis is parallel to those of the needles. This solution necessarily implies that the watch must be removed from the arm to reassemble and set the time.

Divulgation de l'inventionDisclosure of the invention

La présente invention a pour but principal de pallier l'inconvénient de l'art antérieur susmentionné en proposant, de manière alternative, un mouvement pour pièce d'horlogerie présentant un encombrement réduit, au moins suivant une direction autre que son épaisseur, et comprenant une couronne de mise à l'heure accessible alors que la montre est portée au poignet.The main object of the present invention is to overcome the disadvantage of the abovementioned prior art by proposing, alternatively, a movement for a timepiece having a reduced bulk, at least in a direction other than its thickness, and comprising a time setting crown accessible while the watch is worn on the wrist.

A cet effet, la présente invention concerne notamment un tel mouvement, préférablement de type baguette, dans lequel la tige de mise à l'heure est orientée suivant la direction longitudinale du mouvement et présente une portion relativement courte à l'intérieur du mouvement. Ainsi, lorsque le mouvement est monté dans une boîte de montre, la couronne de mise à l'heure est agencée sur un côté de la boîte et est, par conséquent, accessible tandis que la montre est portée au poignet.For this purpose, the present invention relates in particular to such a movement, preferably rod type, wherein the time setting rod is oriented in the longitudinal direction of the movement and has a relatively short portion within the movement. Thus, when the movement is mounted in a watch case, the time setting ring is arranged on one side of the box and is, therefore, accessible while the watch is worn on the wrist.

Un but supplémentaire de la présente invention est de garantir une bonne stabilité des éléments du mécanisme de mise à l'heure malgré les faibles dimensions des éléments de bâti, comme la platine ou les ponts.A further object of the present invention is to ensure good stability of the elements of the time setting mechanism despite the small dimensions of the frame elements, such as the plate or the bridges.

En particulier, il est important de disposer d'une grande précision dans les mouvements des pièces mobiles du mécanisme de mise à l'heure, ainsi que dans le positionnement des pièces dont la fonction est de guider ou d'actionner ces pièces mobiles, comme c'est le cas de la tige de mise à l'heure et de sa tirette.In particular, it is important to have a high accuracy in the movements of moving parts of the time setting mechanism, as well as in the positioning of parts whose function is to guide or actuate these moving parts, such as this is the case of the time-setting rod and its zipper.

De manière conventionnelle, la tirette comprend une planche reposant principalement sur la platine, côté cadran, et est maintenue en place par un organe de pivotement, typiquement une vis de tirette disposée au travers de la platine, sa tête étant située du côté ponts. Le pied de la vis porte un filetage coopérant avec un taraudage ménagé dans un trou de la planche de tirette, la vis définissant un axe de pivotement de la tirette. Une première extrémité de la tirette comprend un plot engagé dans une gorge de la tige de remontoir permettant de maintenir celle-ci en place dans le mouvement. La seconde extrémité de la tirette agit sur une bascule commandant le déplacement d'un pignon coulant.Conventionally, the pull tab comprises a board resting mainly on the plate, dial side, and is held in place by a pivot member, typically a pull screw disposed through the plate, its head being located on the bridge side. The foot of the screw carries a thread cooperating with a tapped hole in a hole of the drawbar, the screw defining a pivot axis of the pull tab. A first end of the pull tab comprises a stud engaged in a groove of the winding stem to maintain it in place in the movement. The second end of the pull tab acts on a rocker controlling the displacement of a sliding pinion.

Dans sa position poussée, la tige de remontoir permet de remonter un ressort de barillet par un mouvement de rotation. Lorsqu'elle est tirée, la tige de remontoir entraîne la première extrémité de la tirette qui pivote sur la vis de tirette et agit sur la bascule pour déplacer le pignon coulant. La tige de remontoir peut alors être manipulée pour effectuer la mise à l'heure du mouvement.In its pushed position, the winding stem makes it possible to raise a mainspring by a rotational movement. When pulled, the winding stem drives the first end of the pull-tab that pivots on the drawbar screw and acts on the rocker to move the sliding pinion. The winding stem can then be manipulated to set the time of movement.

Toutefois, cette structure conventionnelle est mal adaptée au maintien de la tirette par rapport à son axe de pivotement, particulièrement lorsque la platine présente des dimensions réduites et n'offre qu'une faible surface pour le support de la tirette.However, this conventional structure is poorly adapted to maintaining the pull relative to its pivot axis, particularly when the plate has reduced dimensions and offers only a small surface for the support of the pull.

Ainsi, la présente invention concerne plus précisément un mouvement horloger du type décrit plus haut, caractérisé par le fait que l'organe de pivotement comporte des premier et deuxième pivots disposés de part et d'autre de la planche de tirette et engagés dans le bâti.Thus, the present invention relates more precisely to a watch movement of the type described above, characterized in that the pivoting member comprises first and second pivots arranged on either side of the drawbar and engaged in the frame. .

Grâce à cette caractéristique, le positionnement de l'axe de rotation de la tirette est amélioré et permet de garantir la fiabilité du passage entre les fonctions de remontage du mouvement et de mise à l'heure lors des déplacements de la tige de remontoir suivant sa direction axiale.With this feature, the positioning of the axis of rotation of the zipper is improved and ensures the reliability of the passage between the functions of reassembly of the movement and setting time when the movements of the winding stem following its axial direction.

De manière préférée, la présente invention prévoit également des moyens supplémentaires permettant d'améliorer le guidage de la tige de mise à l'heure.Preferably, the present invention also provides additional means for improving the guidance of the time setting rod.

Brève description des dessinsBrief description of the drawings

D'autres caractéristiques et avantages de la présente invention apparaîtront plus clairement à la lecture de la description détaillée d'un mode de réalisation préféré qui suit, faite en référence aux dessins annexés donnés à titre d'exemples non limitatifs et dans lesquels:Other features and advantages of the present invention will appear more clearly on reading the detailed description of a preferred embodiment which follows, made with reference to the accompanying drawings given by way of non-limiting examples and in which:

- la figure 1 représente une vue éclatée simplifiée d'une partie du mouvement horloger, montré côté ponts, selon un mode de réalisation préféré de la présente invention;FIG. 1 represents a simplified exploded view of a part of the watch movement, shown on the bridge side, according to a preferred embodiment of the present invention;

- la figure 2 représente une vue de dessus simplifiée de la partie du mouvement représentée sur la figure 1, lorsque ses éléments constitutifs sont assemblés;- Figure 2 shows a simplified top view of the portion of the movement shown in Figure 1, when its constituent elements are assembled;

- la figure 3 est une vue de dessus, du côté cadran, du mouvement de la figure 1, lorsqu'il est complet;FIG. 3 is a view from above, on the dial side, of the movement of FIG. 1, when it is complete;

- la figure 4a est une vue en coupe transversale simplifiée d'un premier détail de construction du mouvement représenté sur les figures précédentes, réalisée suivant la ligne L1 de la figure 1;- Figure 4a is a simplified cross-sectional view of a first construction detail of the movement shown in the preceding figures, taken along the line L1 of Figure 1;

- la figure 4b est une vue en coupe transversale simplifiée d'un second détail de construction du mouvement représenté sur les figures précédentes, réalisée suivant la ligne L2 de la figure 2, etFIG. 4b is a simplified cross-sectional view of a second construction detail of the movement represented in the preceding figures, taken along the line L2 of FIG. 2, and

- la figure 5 est une vue en coupe transversale simplifiée d'un troisième détail de construction du mouvement représenté sur les figures précédentes, selon une variante préférée de réalisation, la coupe étant réalisée suivant la ligne L3 de la figure 2.FIG. 5 is a simplified cross-sectional view of a third constructional detail of the movement represented in the preceding figures, according to a preferred variant embodiment, the section being taken along the line L3 of FIG. 2.

Mode(s) de réalisation de l'inventionMode (s) of realization of the invention

La figure 1 représente, en éclaté, une partie de mouvement d'horlogerie muni d'un mécanisme de mise à l'heure selon l'invention. Ce mouvement comprend une platine 1 qui présente une forme générale allongée délimitée par une première et une seconde portions d'extrémité transversales 2 et 3, dont la largeur correspond à la largeur du mouvement assemblé.Figure 1 shows an exploded portion of a clockwork movement provided with a time setting mechanism according to the invention. This movement comprises a plate 1 which has a generally elongated shape delimited by a first and a second transverse end portions 2 and 3, whose width corresponds to the width of the assembled movement.

La première portion d'extrémité 2 comporte deux tenons 4, 5 destinés à assembler des éléments constitutifs du mécanisme de mise à l'heure du mouvement.The first end portion 2 comprises two pins 4, 5 intended to assemble elements constituting the mechanism for setting the time of movement.

En particulier, la première portion d'extrémité 2 présente un évidement 6, entre les deux tenons 4 et 5, dans lequel est disposée une tirette 7 de remontoir.In particular, the first end portion 2 has a recess 6, between the two pins 4 and 5, in which is arranged a winding puller 7.

La tirette 7 comporte une planche formée d'une première portion 8 et d'une seconde portion 15. La portion 8 porte, à une première extrémité libre 9, un premier plot 10 de tige de remontoir. Elle présente un trou 11 taraudé destiné à coopérer avec une portion filetée de vis de tirette 12, et un coude 13, à distance du premier plot 10, suivi d'une langue incurvée 14. La seconde portion 15 de tirette, d'épaisseur moindre que celle de la première portion, s'étend dans le prolongement de la languette 14 jusqu'à une seconde extrémité libre 16, portant un second plot 17.The pull tab 7 includes a board formed of a first portion 8 and a second portion 15. The portion 8 carries, at a first free end 9, a first pin 10 winding stem. It has a tapped hole 11 intended to cooperate with a screw threaded screw portion 12, and a bend 13, at a distance from the first stud 10, followed by a curved tongue 14. The second zipper portion 15, of lesser thickness that that of the first portion, extends in the extension of the tongue 14 to a second free end 16, carrying a second stud 17.

Lorsque la tirette 7 est mise en place sur la platine, le second plot 17 est engagé dans la gorge 18 d'une bascule 19, située du côté cadran de la platine 1 et qui sera décrite plus en détail en relation avec la figure 3.When the pull tab 7 is put in place on the plate, the second stud 17 is engaged in the groove 18 of a rocker 19, located on the dial side of the plate 1 and which will be described in more detail in relation with FIG.

Un sautoir de tirette 20 est engagé sur le tenon 4 par un premier trou principal 21. Un tenon supplémentaire 22 de la platine 1 est prévu pour coopérer avec un second trou 23 de positionnement du sautoir de tirette. Le sautoir de tirette 20 présente une forme allongée et recourbée se terminant par un bec 24 destiné à coopérer avec la langue incurvée 14 de la tirette pour assurer le positionnement de cette dernière.A puller 20 is engaged on the pin 4 by a first main hole 21. An additional pin 22 of the plate 1 is provided for cooperate with a second hole 23 for positioning the puller puller. The pull rod 20 has an elongated and curved shape ending in a spout 24 intended to cooperate with the curved tongue 14 of the pull tab to ensure the positioning of the latter.

Un ressort 25 est également engagé sur les tenons 4 et 22, pour agir par le biais d'un bec 26, avec le rochet de barillet (visible sur la figure 3).A spring 25 is also engaged on the pins 4 and 22, to act through a spout 26, with the barrel ratchet (visible in Figure 3).

Un pont intermédiaire 27 muni notamment de deux trous 29 adaptés pour coopérer avec les tenons 4 et 5 est monté sur la platine 1. Il comprend un trou 30 d'axe parallèle à la direction longitudinale du mouvement, de forme générale cylindrique et débouchant dans sa face située en regard de la platine (visible sur la figure 4a). Le trou 30 est destiné à loger et positionner la tige de remontoir 28, avec interposition d'une bague 31 fendue sur toute sa longueur, de diamètre légèrement inférieur au diamètre du trou 30. La tige 28 comprend une portion cylindrique 28a, coopérant avec le tube 31, qui permet son pivotement et sa translation en référence au pont 27. La tige 28 présente une gorge 32 dans laquelle le plot 10 de la tirette 7 est engagé lorsque le mécanisme de remontage est assemblé.An intermediate bridge 27 provided in particular with two holes 29 adapted to cooperate with the tenons 4 and 5 is mounted on the plate 1. It comprises a hole 30 of axis parallel to the longitudinal direction of the movement, of generally cylindrical shape and opening into its face located opposite the plate (visible in Figure 4a). The hole 30 is intended to accommodate and position the winding stem 28, with the interposition of a ring 31 slotted over its entire length, of diameter slightly less than the diameter of the hole 30. The rod 28 comprises a cylindrical portion 28a, cooperating with the tube 31, which allows its pivoting and its translation with reference to the bridge 27. The rod 28 has a groove 32 in which the stud 10 of the pull tab 7 is engaged when the winding mechanism is assembled.

Un carré 33 est ménagé à la suite de la portion cylindrique 28a, celui-ci s'étendant jusqu'à l'extrémité de la tige 28 située dans le mouvement. Un pignon de remontoir 34 présentant un trou 34a, adapté pour coopérer avec le carré 33 de la tige de remontoir, est disposé adjacent au pont intermédiaire 27 en étant monté sur la tige de remontoir 28. Plus précisément, le carré 33 et le trou 34a sont agencés de manière à ce qu'une rotation de la tige 28 fasse tourner le pignon 34, tout en permettant une translation de l'un par rapport à l'autre.A square 33 is formed following the cylindrical portion 28a, the latter extending to the end of the rod 28 located in the movement. A winding pinion 34 having a hole 34a, adapted to cooperate with the square 33 of the winding stem, is disposed adjacent to the intermediate bridge 27 by being mounted on the winding stem 28. More precisely, the square 33 and the hole 34a are arranged so that a rotation of the rod 28 rotates the pinion 34, while allowing a translation of one relative to the other.

Un élément 35 supplémentaire, adjacent au pont intermédiaire 27, est prévu pour garantir le maintien de la tige 28 et du pignon 34 de remontoir dans leurs positions respectives. Il comporte un trou 36 à l'intérieur duquel s'engage le carré 33. Le pignon de remontoir 34 est maintenu axialement dans l'espace compris entre le pont 27 et l'élément 35. Ce dernier présente en outre des oreilles 37 destinées à recouvrir partiellement le pont intermédiaire 27, celles-ci portant des tubes 38 s'étendant en direction de la platine 1 pour s'engager dans les trous 29 du pont intermédiaire 27 et entourer les tenons 4 et 5. Les tubes 38 permettent de garantir le bon positionnement de l'élément supplémentaire 35 à la fois par rapport au pont intermédiaire 27 et par rapport à la platine 1, par le biais des tenons 4 et 5.An additional element, adjacent to the intermediate bridge 27, is provided to ensure that the stem 28 and the winding pinion 34 are held in their respective positions. It comprises a hole 36 inside which engages the square 33. The winding pinion 34 is held axially in the space between the bridge 27 and the element 35. The latter also has ears 37 intended for partially cover the intermediate bridge 27, the latter carrying tubes 38 extending in direction of the plate 1 to engage in the holes 29 of the intermediate bridge 27 and surround the pins 4 and 5. The tubes 38 make it possible to guarantee the correct positioning of the additional element 35 both with respect to the intermediate bridge 27 and relative to the plate 1, through the pins 4 and 5.

Deux vis 39 sont insérées dans les tubes 38 de l'élément supplémentaire 35, pour coopérer avec des taraudages ménagés à l'intérieur des tenons 4 et 5, et assurer l'assemblage des éléments qui viennent d'être décrits.Two screws 39 are inserted into the tubes 38 of the additional element 35, to cooperate with threads formed inside the pins 4 and 5, and assemble the elements just described.

La vis de tirette 12 est logée à l'intérieur d'un trou 40 ménagé dans le pont intermédiaire 27. Elle définit l'axe de rotation de la tirette 7. Elle est munie d'un filetage 41 destiné à coopérer avec le trou 11 de la tirette, de manière connue.The drawbar screw 12 is housed inside a hole 40 formed in the intermediate bridge 27. It defines the axis of rotation of the pull tab 7. It is provided with a thread 41 intended to cooperate with the hole 11 of the zipper, in known manner.

Elle présente, en outre une extrémité libre 42, s'étendant au-delà du filetage 41, et destinée à être insérée à l'intérieur d'un trou 43 pratiqué dans la platine 1, comme cela sera exposé plus en détail en relation avec les figures 4a et 4b.It furthermore has a free end 42 extending beyond the thread 41 and intended to be inserted inside a hole 43 made in the plate 1, as will be explained in more detail in connection with FIG. Figures 4a and 4b.

Par ailleurs, la platine 1 présente, entre ses deux extrémités 2 et 3, une pluralité d'emplacements, trous et paliers destinés à porter des composants conventionnels de mouvement horloger qui ne seront pas décrits en détail dans le présent exposé dans la mesure où ils ne concernent pas directement le coeur de l'invention.Furthermore, the plate 1 has, between its two ends 2 and 3, a plurality of locations, holes and bearings intended to carry conventional components of watch movement which will not be described in detail in the present description to the extent that they do not directly concern the heart of the invention.

La figure 2 représente une vue de dessus de la partie du mouvement représentée sur la figure 1, lorsque ses éléments constitutifs sont assemblés.Figure 2 shows a top view of the part of the movement shown in Figure 1, when its constituent elements are assembled.

On distingue que la platine 1 comporte une noyure 50 destinée à loger le barillet du mouvement et ménagée à proximité de sa première extrémité 2.It is distinguished that the plate 1 comprises a hole 50 intended to house the barrel of movement and arranged near its first end 2.

La bascule 19 porte un premier renvoi 51 de mise à l'heure, en prise, dans la position représentée sur cette figure, avec un deuxième renvoi 52, lui-même en prise avec un troisième renvoi 53. Les deuxième et troisième renvois 52, 53 sont disposés au fond de la noyure 50 de barillet.The rocker 19 carries a first reference 51 of time setting, engaged, in the position shown in this figure, with a second reference 52, itself engaged with a third reference 53. The second and third references 52, 53 are arranged at the bottom of the barrel core 50.

Une plaquette 54 de positionnement du ressort 25 a également été représentée, celle-ci permettant d'assurer le maintien du ressort 25 suivant la direction de l'épaisseur du mouvement.A plate 54 for positioning the spring 25 has also been shown, which makes it possible to maintain the spring 25 in the direction of the thickness of the movement.

On constate également sur la figure 2 que la bascule 19 porte un renvoi de remontage 55, destiné à engrener avec le rochet du barillet (visible sur la figure 3) lors des opérations de remontage du ressort de barillet.It is also noted in Figure 2 that the rocker 19 carries a winding reference 55, intended to mesh with the barrel ratchet (visible in Figure 3) during winding operations of the barrel spring.

Un tube 56, dont seule une extrémité est apparente sur cette figure, est agencé au travers de la platine 1 pour définir un pivot pour la bascule 19.A tube 56, of which only one end is visible in this figure, is arranged through the plate 1 to define a pivot for the rocker 19.

La figure 3 représente une vue de dessus du côté cadran du mouvement complet selon le mode de réalisation préféré de la présente invention.Figure 3 shows a top view of the dial side of the complete movement according to the preferred embodiment of the present invention.

On distingue sur cette figure, depuis la seconde extrémité 3 de la platine 1 et en direction de la première extrémité 2, le balancier 60, avec son spiral 61, la roue d'échappement 62, la roue de minuterie 63, un mobile de réduction 64, la roue des heures 65, la roue de grande moyenne 66, le barillet 67 et le rochet de barillet 68.This figure, from the second end 3 of the plate 1 and towards the first end 2, distinguishes the balance 60, with its spring 61, the escape wheel 62, the timer wheel 63, a reduction mobile 64, the hour wheel 65, the medium wheel 66, the barrel 67 and the barrel ratchet 68.

D'autre part, la structure et le fonctionnement de la bascule 19 apparaissent plus clairement sur cette figure, en relation avec la description des organes disposés côté cadran.On the other hand, the structure and operation of the rocker 19 appear more clearly in this figure, in connection with the description of the organs arranged dial side.

Une roue de couronne 69, coaxiale au tube 56 sur lequel pivote la bascule, est agencée en prise permanente avec le pignon de remontoir 34. Par ailleurs, elle engrène en permanence avec une première roue de mise à l'heure 70, qui entraîne une deuxième roue de mise à l'heure 71. La deuxième roue intermédiaire de mise à l'heure 71 est montée coaxiale et solidaire du premier renvoi 51 de mise à l'heure, ce dernier étant disposé du côté ponts de la bascule, comme précédemment mentionné en relation avec la figure 3.A crown wheel 69, coaxial with the tube 56 on which the rocker pivots, is arranged in permanent engagement with the winding pinion 34. Furthermore, it meshes permanently with a first clocking wheel 70, which causes a second hour-setting wheel 71. The second intermediate hour-setting wheel 71 is mounted coaxially and secured to the first time-setting reference 51, the latter being disposed on the bridge side of the rocker, as previously mentioned in connection with Figure 3.

La roue de couronne 69 engrène, en outre, en permanence avec une roue intermédiaire 72, montée coaxiale et solidaire du renvoi de remontage 55, ce dernier étant situé du côté ponts de la bascule.The crown wheel 69 meshes, moreover, permanently with an intermediate wheel 72, coaxially mounted and secured to the winding return 55, the latter being located on the bridge side of the rocker.

La bascule 19 présente deux bras 73, à distance de son axe de pivotement et de part et d'autre de celui-ci, s'étendant jusqu'à la première extrémité 2 de la platine 1. Chacune des extrémités libres (non visibles) des bras 73 est maintenue dans une rainure (non visibles) de la platine 1 par des plaquettes 74, dans le but d'améliorer la stabilité et le guidage de la bascule 19, en particulier lorsqu'elle est dans l'une ou l'autre des positions de mise à l'heure et de remontage.The rocker 19 has two arms 73, spaced from its pivot axis and on either side thereof, extending to the first end 2 of the plate 1. Each of the free ends (not visible) arms 73 is held in a groove (not visible) of the plate 1 by plates 74, in order to improve the stability and guidance of the rocker 19, in particular when it is in one or the other setting and winding positions.

Les figures 4a et 4b, représentant des vues en coupe de détails de construction du mouvement qui vient d'être décrit, permettent de mieux comprendre comment est contrôlé le pivotement de la bascule 19, grâce à la structure particulière de la tirette 7.FIGS. 4a and 4b, showing sectional views of construction details of the movement that has just been described, make it possible to better understand how the pivoting of the rocker 19 is controlled thanks to the particular structure of the pull tab 7.

La figure 4a représente une vue en coupe transversale, réalisée selon un plan perpendiculaire au plan moyen de la platine 1 et contenant la ligne référencée L1 sur la figure 1. La première portion 8 de la tirette 7 est particulièrement apparente sur cette figure. La vis de tirette 12 est ici représentée dans sa position fonctionnelle, c'est-à-dire lorsqu'elle est insérée dans le trou 40 du pont intermédiaire 27, puis vissée dans le trou 11 de la tirette 7. Le vissage de la vis dans la tirette est effectué jusqu'à ce que la tirette se trouve en butée contre la partie cylindrique 75 de la vis logée dans le pont intermédiaire 27. Dans cette configuration, la tirette est positionnée suivant une direction sensiblement parallèle au plan moyen de la platine 1, en définissant un dégagement entre elle et l'évidement 6 de la platine. De ce fait, la première portion 8 de la tirette n'est pas supportée par la platine lorsque la tirette est dans sa position fonctionnelle. D'autre part, lorsque le vissage est complet, le plot 10 de la tirette se trouve en place, à l'intérieur de la gorge 32 de la tige de remontoir 28. Ainsi, de manière connue, le plot de tirette est entraîné par les mouvements de la tige de remontoir suivant sa direction axiale, ce qui provoque le pivotement de la tirette sur la vis 12 de tirette. Comme mentionné précédemment en relation avec la description de la figure 1, la vis 12 de tirette présente une extrémité libre 42 s'étendant au-delà du filetage 41 et logée dans un trou 43 de la platine 1 pour former un pivot. Cette caractéristique particulière de la vis 12 de tirette selon la présente invention, permet, par rapport aux structures connues de l'art antérieur, d'en améliorer le maintien, ainsi que la stabilité et le positionnement de la tirette 7 en référence à la platine 1.FIG. 4a shows a cross-sectional view taken along a plane perpendicular to the mean plane of the plate 1 and containing the line referenced L1 in FIG. 1. The first portion 8 of the pull tab 7 is particularly apparent in this figure. The drawbar screw 12 is here represented in its operative position, that is to say when it is inserted into the hole 40 of the intermediate bridge 27, and then screwed into the hole 11 of the pull-rod 7. The screwing of the screw in the pull tab is performed until the pull tab is in abutment against the cylindrical portion 75 of the screw housed in the intermediate bridge 27. In this configuration, the pull tab is positioned in a direction substantially parallel to the average plane of the plate 1, defining a clearance between it and the recess 6 of the plate. As a result, the first portion 8 of the pull tab is not supported by the turntable when the pull tab is in its operative position. On the other hand, when the screwing is complete, the stud 10 of the pull tab is in place, inside the groove 32 of the winding stem 28. Thus, in known manner, the pull tab is driven by the movements of the winding stem in its axial direction, which causes the pivoting of the zipper on the screw 12 zipper. As mentioned above in connection with the description of Figure 1, the screw 12 has a zipper free end 42 extending beyond the thread 41 and housed in a hole 43 of the plate 1 to form a pivot. This particular characteristic of the screw 12 of zipper according to the present invention, makes it possible, with respect to the known structures of the prior art, to improve its maintenance, as well as the stability and positioning of the zipper 7 with reference to the plate 1.

Une telle caractéristique est encore plus avantageuse lorsqu'elle est mise en oeuvre dans un mouvement du type de celui décrit dans le présent exposé. En effet, la platine 1, en présentant un encombrement réduit, ne permet pas de supporter une partie importante de la planche de la tirette comme c'est le cas dans les mouvements conventionnels. Ainsi, l'amélioration de la stabilité de la vis de tirette 12 pallie au défaut de maintien de la tirette 7 par la platine 1.Such a characteristic is even more advantageous when it is used in a movement of the type described in the present description. Indeed, the plate 1, having a small footprint, does not support a large part of the board of the zipper as is the case in conventional movements. Thus, the improvement in the stability of the drawbar screw 12 compensates for the failure to hold the pull tab 7 by the plate 1.

On constate sur la figure 4a qu'un pont 76 est monté sur le pont intermédiaire 27, ce pont s'étendant entre les première et seconde extrémités 2 et 3 de la platine 1, de manière analogue à ce qui est décrit dans le brevet CH 623 192 précité. Le pont 76 est rendu solidaire du pont intermédiaire par deux vis 77 dont une seule est visible sur la figure 4a.It can be seen in FIG. 4a that a bridge 76 is mounted on the intermediate bridge 27, this bridge extending between the first and second ends 2 and 3 of the plate 1, in a manner similar to that described in the patent CH 623 192 supra. The bridge 76 is secured to the intermediate bridge by two screws 77 of which only one is visible in Figure 4a.

Le pont 76 comporte un trou 78 d'accès à la tête de la vis 12 de tirette présentant deux portions successives, de diamètres différents, définissant entre-elles un épaulement 79 à l'intérieur du trou 78. La tête de la vis 12 de tirette comprend deux portions successives, dont une première 80, d'extrémité, avec un premier diamètre et, une seconde 81, d'un second diamètre supérieur au diamètre de la première portion et au diamètre de l'épaulement 79. Par conséquent, lorsque le pont 76 est mis en place sur le pont intermédiaire 27, la vis 12 de tirette ne peut pas être retirée de son emplacement. Toutefois, la tête de la vis 12 de tirette est accessible depuis la face supérieure 82 du pont 76, pour permettre de dévisser la vis de tirette et libérer la tige de remontoir, de manière conventionnelle, pour procéder au déboîtage du mouvement. Lors d'une telle opération, le dévissage de la vis 12 de tirette entraîne une translation de la tirette dans le dégagement, en direction de la platine 1, puisque la vis 12 reste dans sa position axiale de service dans laquelle elle est maintenue par le pont 76.The bridge 76 has a hole 78 for access to the head of the pull screw 12 having two successive portions, of different diameters, defining between them a shoulder 79 inside the hole 78. The head of the screw 12 of The pull tab comprises two successive portions, of which a first end 80, with a first diameter and a second 81, of a second diameter greater than the diameter of the first portion and the diameter of the shoulder 79. Therefore, when the bridge 76 is put in place on the intermediate bridge 27, the screw 12 zipper can not be removed from its location. However, the head of the screw zipper 12 is accessible from the upper face 82 of the bridge 76, to allow to unscrew the zipper screw and release the winding stem, in a conventional manner, to proceed to dislodge the movement. During such an operation, the unscrewing of the drawbar screw 12 causes translation of the pull tab in the clearance, in the direction of the plate 1, since the screw 12 remains in its axial service position in which it is held by the bridge 76.

Le fait que la vis 12 de tirette ne peut être extraite de son emplacement, lorsque le pont 76 est en place, permet d'éviter qu'elle ne soit perdue en effectuant une opération de déboitage.The fact that the screw 12 zipper can not be removed from its location, when the bridge 76 is in place, prevents it from being lost by performing a clearing operation.

La figure 4b représente une vue en coupe transversale de la tirette 7, selon un plan perpendiculaire au plan de la figure 2 et contenant la ligne référencée L2, rendant plus visible le défaut de support offert par la platine 1 à la tirette 7, ainsi que l'interaction de cette dernière avec la bascule 19.FIG. 4b shows a cross-sectional view of the pull tab 7, in a plane perpendicular to the plane of FIG. 2 and containing the line referenced L 2, making the support defect offered by the plate 1 to the pull tab 7 more visible, as well as the interaction of the latter with the rocker 19.

Alors que, généralement la tirette repose quasi intégralement sur la platine, on constate, sur la figure 4b, que la totalité de la seconde portion 15 de la tirette 7 ne repose ni sur la platine 1, ni sur aucune autre pièce fixe du mouvement. Toutefois, grâce aux caractéristiques selon la présente invention, en particulier celles décrites en relation avec la figure 4a, la stabilité et le positionnement de la tirette 7 sont assurés pour lui permettre de remplir sa fonction principale, à savoir commander les mouvements de pivotement de la bascule 19. Dans ce but, la tirette 7 est en liaison avec la gorge 18 de la bascule 19 par son plot 17.Whereas, generally, the pull tab rests almost entirely on the plate, it can be seen in FIG. 4b that the entire second portion 15 of the pull tab 7 rests neither on the plate 1 nor on any other fixed part of the movement. However, thanks to the features according to the present invention, in particular those described in relation to FIG. 4a, the stability and the positioning of the pull tab 7 are ensured to enable it to fulfill its main function, namely to control the pivoting movements of the flip-flop 19. For this purpose, the pull tab 7 is connected to the groove 18 of the flip-flop 19 by its stud 17.

De manière générale et en relation avec l'ensemble des figures, on comprend qu'en fonction de la position de la tige de remontoir 28, la tirette peut également prendre deux positions extrêmes, l'une de remontoir, l'autre de mise à l'heure. La forme particulière de la gorge 18 définit des butées correspondant aux positions extrêmes de la tirette.In general and in relation to all the figures, it is understood that depending on the position of the winding stem 28, the zipper can also take two extreme positions, one winding, the other setting time. The particular shape of the groove 18 defines stops corresponding to the extreme positions of the pull tab.

Lorsque la tirette 7 est déplacée vers sa position de remontoir, sa seconde portion 15 est éloignée de la platine 1 en exerçant une force de traction dans cette direction sur la gorge 18 de la bascule 19. La partie de la bascule 19 dans laquelle la gorge 18 est ménagée est donc également écartée de la platine 1. Ainsi, dans cette position, le premier renvoi 51 est également éloigné de la platine et n'est, par conséquent, pas en prise avec le deuxième renvoi 52. D'autre part, l'autre côté de la bascule est rapproché de la platine 1 et permet l'engrenage du renvoi de remontage 55 avec le rochet de barillet 68.When the pull tab 7 is moved to its winding position, its second portion 15 is removed from the plate 1 by exerting a traction force in this direction on the groove 18 of the rocker 19. The part of the rocker 19 in which the throat 18 is thus also spaced apart from the plate 1. Thus, in this position, the first reference 51 is also remote from the plate and is therefore not engaged with the second reference 52. On the other hand, the other side of the rocker is close to the plate 1 and allows the gear of the winding return 55 with the barrel ratchet 68.

Dans cette position de la tige de remontoir 28, et donc de la bascule 19, tout mouvement de rotation de la tige de remontoir entraîne une rotation du rochet de barillet 68 pour remonter le ressort du barillet 67. Plus précisément, on prévoit préférablement, de manière connue, un encliquetage entre la roue intermédiaire 72 et le renvoi 55. Ainsi, le rochet de barillet 68 n'est entraîné que lors des mouvements de rotation de la tige de remontoir dans le sens horaire, sous l'effet combiné de l'action du ressort 25 sur le rochet de barillet 68 et de l'encliquetage (non représenté).In this position of the winding stem 28, and therefore of the rocker 19, any rotational movement of the winding stem causes a rotation of the barrel ratchet 68 to raise the spring of the barrel 67. More specifically, it is preferably provided to in known manner, a snap between the intermediate wheel 72 and the return 55. Thus, the barrel ratchet 68 is driven only during the rotational movements of the winding stem clockwise, under the combined effect of the action of the spring 25 on the barrel ratchet 68 and the snap (not shown).

Lorsque la tige de remontoir 28 est tirée, elle entraîne le plot 10 de la tirette 7, via la gorge 32. La tirette pivote alors sur la vis 12 de tirette, en rapprochant sa seconde portion 15 de la platine 1.When the winding stem 28 is pulled, it drives the stud 10 of the pull tab 7, via the groove 32. The pull rod then pivots on the screw 12 pull, bringing its second portion 15 of the plate 1.

Pendant le pivotement de la tirette 7, le plot 17 exerce une force sur la gorge 18 de la bascule 19 provoquant un pivotement de cette dernière autour du tube 56. Dans ce mouvement de pivotement, le premier renvoi 51 se rapproche de la platine 1 tandis que le renvoi de remontage 55 s'en écarte. Le premier renvoi 51 vient se placer en prise avec le deuxième renvoi 52 de mise à l'heure, tandis que le renvoi 55 se sépare du rochet de barillet 68.During the pivoting of the pull tab 7, the stud 17 exerts a force on the groove 18 of the rocker 19 causing a pivoting thereof around the tube 56. In this pivoting movement, the first return 51 is close to the plate 1 while that the winding return 55 departs from it. The first reference 51 comes into contact with the second reference 52 for setting the time, while the reference 55 is separated from the barrel ratchet 68.

Dans cette position, les mouvements de rotation de la tige de remontoir 28, dans un sens ou dans l'autre, entraînent la rotation de la chaussée, par les deux renvois 52 et 53, et donc de la roue des heures 65, pour effectuer la mise à l'heure de la pièce d'horlogerie dans laquelle le mouvement est mis en oeuvre. Bien entendu, dans ce cas également, une friction, prévue préférablement au niveau de la roue de grande moyenne 66, permet d'éviter des dommages qui pourraient être causés au rouage d'entraînement pendant les opérations de mise à l'heure.In this position, the rotational movements of the winding stem 28, in one direction or the other, cause the rotation of the roadway, by the two references 52 and 53, and therefore the hour wheel 65, to perform setting the timepiece of the timepiece in which the movement is implemented. Of course, in this case also, a friction, preferably provided at the level of the medium wheel 66, avoids damage that could be caused to the drive train during the time setting operations.

La figure 5 représente une variante préférée du mouvement selon la présente invention dans une vue en coupe transversale suivant un plan perpendiculaire au plan de la figure 2 et contenant la ligne L3.FIG. 5 represents a preferred variant of the movement according to the present invention in a cross-sectional view along a plane perpendicular to the plane of FIG. 2 and containing the line L3.

Selon cette variante, le pignon de remontoir 34 comprend un canon 34b coaxial au trou 34a et orienté en direction de l'intérieur du mouvement. Le diamètre externe du canon 34b est légèrement inférieur au diamètre du trou 36 de l'élément supplémentaire 35, à l'intérieur duquel il est inséré. Grâce à cette caractéristique avantageuse, le canon 34b contribue à stabiliser le pignon de remontoir 34 par rapport à la platine.According to this variant, the winding pinion 34 comprises a barrel 34b coaxial with the hole 34a and oriented towards the inside of the movement. The outer diameter of the barrel 34b is slightly smaller than the diameter of the hole 36 of the additional member 35, inside which it is inserted. With this advantageous feature, the barrel 34b helps stabilize the winding pinion 34 relative to the plate.

La section interne du canon 34b est identique à la section du trou 34a, de sorte que la forme interne du canon 34b est sensiblement complémentaire de celle du carré 33 de la tige de remontoir 28. Les dimensions respectives du canon 34b et du carré 33 sont telles qu'un léger jeu est préférablement ménagé entre eux.The internal section of the barrel 34b is identical to the section of the hole 34a, so that the inner shape of the barrel 34b is substantially complementary to that of the square 33 of the winding stem 28. The respective dimensions of the barrel 34b and the square 33 are such as a light game is preferably arranged between them.

Par ailleurs, on constate également sur la figure 5 que le tube 56 présente un trou central taraudé coopérant avec le pied d'une vis à portée 83, engagée dans la platine 1 à partir de son côté cadran.Furthermore, it can also be seen in FIG. 5 that the tube 56 has a tapped central hole cooperating with the foot of a bearing screw 83 engaged in the plate 1 from its dial side.

Un tenon 84 est agencé autour du tube 56, en étant interposé entre la tête de la vis 83 et la platine 1 dans le but d'assurer le positionnement de la vis par rapport à la platine. La tête de la vis 83 étant relativement large par rapport à son pied, la portion située entre les deux portées permet d'en renforcer la rigidité. D'autre part, on constate que le tenon 84 présente deux portées entre lesquelles est disposée la bascule 19, libre en rotation, pour garantir un maintien de cette dernière dans la direction axiale.A post 84 is arranged around the tube 56, being interposed between the head of the screw 83 and the plate 1 in order to ensure the positioning of the screw relative to the plate. Since the head of the screw 83 is relatively wide relative to its foot, the portion between the two seats makes it possible to reinforce its rigidity. On the other hand, it is found that the tenon 84 has two spans between which is disposed the rocker 19, free in rotation, to ensure a maintenance of the latter in the axial direction.

En outre, le tenon 84 présente une surface d'appui 85 contre laquelle est montée la roue de couronne 69 en étant libre de tourner par rapport à l'axe du tube 56. Le maintien axial de la roue de couronne 69 est également assuré par la tête de la vis à portée 83, tandis que son centrage est assuré par le tenon 84.In addition, the pin 84 has a bearing surface 85 against which is mounted the ring gear 69 is free to rotate relative to the axis of the tube 56. The axial retention of the crown wheel 69 is also provided by the head of the screw at range 83, while its centering is provided by the stud 84.

On comprend bien, de la description qui précède, que les caractéristiques du mouvement selon la présente invention permettent de garantir un bon positionnement et un bon guidage de certains éléments mobiles, remplissant des fonctions essentielles au bon fonctionnement du mouvement, et plus spécialement de la tirette, alors même que les dimensions des éléments de support du mouvement sont exceptionnellement réduites.It will be understood from the foregoing description that the characteristics of the movement according to the present invention make it possible to guarantee proper positioning and guidance of certain movable elements, fulfilling functions essential to the proper functioning of the movement, and more specifically of the zipper. , even though the dimensions of the support elements of the movement are exceptionally small.

La description qui précède correspond à un mode de réalisation préféré de l'invention décrit à titre non limitatif. En particulier, les formes représentées et décrites pour les différents éléments constitutifs du mouvement ne sont pas limitatives.The foregoing description corresponds to a preferred embodiment of the invention described in a non-limiting manner. In particular, the shapes shown and described for the various elements constituting the movement are not limiting.

A titre d'exemple, l'homme du métier ne rencontrera pas de difficulté particulière pour mettre en oeuvre des moyens alternatifs aux bras 73, pour assurer une bonne stabilité de la bascule, sans sortir du cadre de la présente invention.For example, the skilled person will not encounter any particular difficulty to implement alternative means to the arms 73, to ensure good stability of the latch, without departing from the scope of the present invention.

D'autre part, la vis 12 pourrait être remplacée par une tige chassée dans la tirette 7, et maintenue axialement par le pont 76, alors qu'un ressort appuyant contre la tirette maintiendrait le plot 10 engagé dans la gorge 32. Une pression sur la tige déformerait alors le ressort et permettrait de dégager la tige 28 de la tirette.On the other hand, the screw 12 could be replaced by a rod driven into the pull tab 7, and held axially by the bridge 76, while a spring pressing against the pull rod would maintain the stud 10 engaged in the groove 32. A pressure on the rod then deform the spring and would clear the rod 28 of the zipper.

Claims (9)

Mouvement horloger comportant
un bâti (1, 27, 35, 76), des moyens d'affichage de l'heure et, un mécanisme de mise à l'heure comprenant : une tige de mise à l'heure (28) montée mobile sur le bâti (27), en translation selon un premier axe, entre au moins deux positions axiales, et en rotation autour de cet axe, une tirette (7) montée pivotante sur le bâti (1) et comprenant une planche (8, 14, 15), laquelle porte un organe de pivotement (12) coopérant avec le bâti, un organe de liaison (10) destiné à coopérer avec ladite tige (28) pour limiter son mouvement de translation et agencé pour permettre le pivotement de la tirette (7) lorsque la tige (28) est déplacée en translation, caractérisé en ce que ledit organe de pivotement (12) comporte des premier et deuxième pivots (75, 42) disposés de part et d'autre de ladite planche et engagés dans le bâti (1, 27).Watch movement with
a frame (1, 27, 35, 76), time display means, and a time setting mechanism comprising: a setting rod (28) movably mounted on the frame (27), in translation along a first axis, between at least two axial positions, and in rotation about this axis, a pull rod (7) pivotally mounted on the frame (1) and comprising a board (8, 14, 15), which carries a pivoting member (12) cooperating with the frame, a connecting member (10) intended to cooperate with said rod (28) for limiting its translational movement and arranged to allow pivoting of the pull tab (7) when the rod (28) is moved in translation, characterized in that said pivoting member (12) comprises first and second pivots (75, 42) disposed on either side of said board and engaged in the frame (1, 27). Mouvement horloger selon la revendication 1, caractérisé en ce que ledit organe de pivotement est une vis de tirette (12) dont une première portion cylindrique (75), agencée d'un premier côté de ladite planche de tirette (7), forme ledit premier pivot, ladite vis de tirette comprenant en outre une portion filetée (41) vissée dans ladite planche, suivie d'une seconde portion cylindrique (42), agencée d'un second côté de la planche, formant ledit second pivot.Clock movement according to claim 1, characterized in that said pivoting member is a pull screw (12), a first cylindrical portion (75), arranged on a first side of said pull tab (7), forms said first pivot, said drawbar screw further comprising a threaded portion (41) screwed into said board, followed by a second cylindrical portion (42), arranged on a second side of the board, forming said second pivot. Mouvement horloger selon la revendication 1 ou 2, caractérisé en ce qu'il comporte un premier et un deuxième éléments de support (27, 35), solidaires dudit bâti et, entre lesquels est agencé un pignon de remontoir (34), solidaire en rotation de ladite tige de remontoir (28), l'ensemble formé dudit pignon de remontoir (34) et de ladite tige de remontoir (28) présentant des premier et deuxième pivots (28a, 34b) disposés respectivement dans lesdits premier et deuxième éléments de support.Watch movement according to claim 1 or 2, characterized in that it comprises a first and a second support element (27, 35) integral with said frame and, between which is arranged a winding pinion (34), integral in rotation said winding stem (28), the assembly formed of said winding pinion (34) and said winding stem (28) having first and second pivots (28a, 34b) respectively disposed in said first and second support members . Mouvement horloger selon la revendication 3, caractérisé en ce que ledit pignon de remontoir (34) comporte un canon (34b) engagé en rotation avec un carré (33) de ladite tige de remontoir (28), ledit canon étant en outre agencé pour pivoter dans ledit deuxième élément de support (35), ladite tige de remontoir (28) présentant un bourrelet (28a) pivotant dans ledit premier élément de support (27).Clock movement according to claim 3, characterized in that said winding pinion (34) comprises a barrel (34b) engaged in rotation with a square (33) of said winding stem (28), said barrel being further arranged to pivot in said second support member (35), said winding stem (28) having a bead (28a) pivoting in said first support member (27). Mouvement horloger selon l'une quelconque des revendications précédentes, comportant en outre des moyens de remontage (68) d'un ressort de barillet (67), caractérisé en ce que ledit mécanisme de mise à l'heure comprend une bascule (19) montée pivotante sur ledit bâti (1), entre une première et une seconde positions, ladite bascule étant commandée par ladite tirette (7) pour actionner alternativement des moyens de mise à l'heure et lesdits moyens de remontage.Watchmaking movement according to any one of the preceding claims, further comprising means for reassembly (68) of a mainspring (67), characterized in that said time setting mechanism comprises a mounted rocker (19) pivoting on said frame (1), between a first and a second position, said rocker being controlled by said pull tab (7) for alternately actuating means for setting the time and said winding means. Mouvement horloger selon la revendication 5, caractérisé en ce que ledit organe de liaison est un premier plot (10), agencé à proximité d'une première extrémité (9) de ladite tirette (7), cette dernière comprenant un second plot (17) agencé à proximité d'une seconde extrémité (16) de ladite tirette en étant engagé dans une gorge (18) de ladite bascule (19) pour commander celle-ci.Clock movement according to claim 5, characterized in that said connecting member is a first stud (10), arranged near a first end (9) of said pull tab (7), the latter comprising a second stud (17) arranged near a second end (16) of said pull tab being engaged in a groove (18) of said rocker (19) to control it. Mouvement selon la revendication 6, caractérisé en ce que ledit premier plot (10) est agencé d'un premier côté de ladite planche (8) de tirette tandis que ledit second plot (17) est agencé d'un second côté de ladite planche.Movement according to claim 6, characterized in that said first pad (10) is arranged on a first side of said pull tab (8) while said second pad (17) is arranged on a second side of said pad. Mouvement horloger selon l'une quelconque des revendications 5 à 7, caractérisé en ce que ladite bascule (19) est maintenue solidaire dudit bâti (1), suivant la direction de son axe de pivotement, par au moins un bras (73) partiellement engagé dans une région dudit bâti en étant libre de se déplacer suivant des directions perpendiculaires audit axe de pivotement uniquement.Clock movement according to any one of claims 5 to 7, characterized in that said rocker (19) is held integral with said frame (1), in the direction of its pivot axis, by at least one arm (73) partially engaged in a region of said frame being free to move in directions perpendicular to said pivot axis only. Pièce d'horlogerie comportant une boîte fermée par une glace et dans laquelle est logé un mouvement selon l'une quelconque des revendications précédentes, ledit mouvement étant agencé de telle manière que son bâti (1) présente une portion médiane, supportant l'ensemble du rouage de finissage ainsi que des moyens d'affichage de l'heure et, délimitée par deux portions d'extrémité (2, 3) reliées à ladite boîte, ladite portion médiane présentant une longueur, orientée suivant un axe six heures - midi et, au moins trois fois supérieure à sa largeur, une couronne de remontoir étant agencée à six heures ou à midi.Timepiece comprising a box closed by an ice and in which is housed a movement according to any preceding claim, said movement being arranged such that its frame (1) has a central portion, supporting the entire finishing gear as well as means for displaying the time and delimited by two end portions (2, 3) connected to said box, said middle portion having a length, oriented along an axis six o'clock - noon and, at least three times greater than its width, a winding crown being arranged at six o'clock or at noon.
EP05102561A 2005-03-31 2005-03-31 Clockwork Not-in-force EP1708052B1 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
DE602005006734T DE602005006734D1 (en) 2005-03-31 2005-03-31 clockwork
EP05102561A EP1708052B1 (en) 2005-03-31 2005-03-31 Clockwork
US11/393,948 US7494269B2 (en) 2005-03-31 2006-03-31 Timepiece movement
JP2006096776A JP2006284585A (en) 2005-03-31 2006-03-31 Clock movement

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP05102561A EP1708052B1 (en) 2005-03-31 2005-03-31 Clockwork

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EP1708052A1 true EP1708052A1 (en) 2006-10-04
EP1708052B1 EP1708052B1 (en) 2008-05-14

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EP (1) EP1708052B1 (en)
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DE (1) DE602005006734D1 (en)

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Publication number Priority date Publication date Assignee Title
CN102262390B (en) * 2010-05-28 2012-11-21 天津海鸥表业集团有限公司 Winding hand-setting conversion mechanism of watch
JP5844985B2 (en) * 2011-03-08 2016-01-20 セイコーインスツル株式会社 Return spring structure for hand-wound watch, hand-wound mechanism and hand-wound watch with the same
EP2565728B1 (en) * 2011-08-29 2018-05-09 ETA SA Manufacture Horlogère Suisse Independent control mechanism for a timepiece
EP2824521A3 (en) 2013-07-12 2016-06-01 Rolex Sa Clockwork mechanism, clock movement and timepiece
EP2824517A3 (en) * 2013-07-12 2016-06-01 Rolex Sa Clockwork mechanism, clock movement and timepiece
WO2016155814A1 (en) * 2015-04-01 2016-10-06 Rolex Sa Mechanism for rewinding and/or correcting at least one clock function and device for selecting a clock function

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CH100993A (en) * 1922-07-15 1923-09-01 Marc Favre & Co Mechanism, with pull tab, for winding and setting the time of the watch.
US1481022A (en) * 1922-12-21 1924-01-15 Phinney Walker Company Clock
CH129340A (en) * 1927-10-24 1928-12-17 Schild Sa A Watch movement.

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DE2442950A1 (en) * 1974-09-07 1976-03-18 Timex Corp HAND SETTING DEVICE FOR CLOCKS
JPS539575A (en) * 1976-07-15 1978-01-28 Seiko Instr & Electronics Ltd Winding stem holding mechanism of watch
JPS5814181U (en) * 1981-07-20 1983-01-28 リコーエレメックス株式会社 Watch stem holding structure
DE69937950T2 (en) * 1999-09-01 2009-01-02 Montres Rolex S.A. Wristwatch type watch
US6773157B1 (en) * 2002-12-30 2004-08-10 Timex Group B.V. Setting assembly for an analog timepiece

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CH100993A (en) * 1922-07-15 1923-09-01 Marc Favre & Co Mechanism, with pull tab, for winding and setting the time of the watch.
US1481022A (en) * 1922-12-21 1924-01-15 Phinney Walker Company Clock
CH129340A (en) * 1927-10-24 1928-12-17 Schild Sa A Watch movement.

Also Published As

Publication number Publication date
EP1708052B1 (en) 2008-05-14
US20060233054A1 (en) 2006-10-19
JP2006284585A (en) 2006-10-19
DE602005006734D1 (en) 2008-06-26
US7494269B2 (en) 2009-02-24

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