EP1852755B1 - Timepiece comprising a minute repeater mechanism - Google Patents

Timepiece comprising a minute repeater mechanism Download PDF

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Publication number
EP1852755B1
EP1852755B1 EP07113157.7A EP07113157A EP1852755B1 EP 1852755 B1 EP1852755 B1 EP 1852755B1 EP 07113157 A EP07113157 A EP 07113157A EP 1852755 B1 EP1852755 B1 EP 1852755B1
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EP
European Patent Office
Prior art keywords
toothed
quarter
minute
sector
striking piece
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Ceased
Application number
EP07113157.7A
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German (de)
French (fr)
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EP1852755A3 (en
EP1852755A2 (en
Inventor
Yves Corthesy
Jean-Pierre Charpier
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LVMH Swiss Manufactures SA
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LVMH Swiss Manufactures SA
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Priority to EP07113157.7A priority Critical patent/EP1852755B1/en
Publication of EP1852755A2 publication Critical patent/EP1852755A2/en
Publication of EP1852755A3 publication Critical patent/EP1852755A3/en
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Publication of EP1852755B1 publication Critical patent/EP1852755B1/en
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    • G—PHYSICS
    • G04—HOROLOGY
    • G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
    • G04B21/00—Indicating the time by acoustic means
    • G04B21/02—Regular striking mechanisms giving the full hour, half hour or quarter hour
    • G04B21/12—Reiterating watches or clocks
    • 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
    • G04B21/00—Indicating the time by acoustic means
    • G04B21/02—Regular striking mechanisms giving the full hour, half hour or quarter hour
    • G04B21/04—Hour wheels; Racks or rakes; Snails or similar control mechanisms

Definitions

  • the present invention relates to the field of mechanical watchmaking. It relates more particularly to a mechanism known to those skilled in the art as the minute repeater.
  • Such a device makes it possible to indicate, on demand, the hour to the minute, by means of blows struck by two hammers on two different stamps.
  • the hammers are operated by lifts that are raised by a striking mechanism. This includes a room of hours, a quarter and a minute, with twelve, three and fourteen teeth respectively to ring the hours, quarters and minutes.
  • a snail of the hours is arranged on a star with twelve teeth, advancing one step per hour, while a quarter snail and another minute are adjusted on the bolster of the roadway .
  • Three flip-flops, each equipped with a probe cooperating with these snails, make it possible to determine the stroke of the parts of the hours, quarters and minutes and to adjust the number of blows sounded.
  • the object of the present invention is to propose a new minute repetition mechanism employing a relatively small number of parts, which makes it easier to develop.
  • the invention relates to a striking piece intended to be integrated into a minute repeater mechanism, comprising a rake which successively presents, along one of its edges, a toothed sector of the hours, a space free of gearing and a toothed area of minutes.
  • the toothed sectors of minutes and hours of this ringing part are located in different planes.
  • the hour and minute toothed sectors are located on a ringing part as defined above.
  • the minute repetition mechanism according to the invention is described below with reference to the figure 1 . It takes place in a classic watch movement whose current elements, for the sake of clarity, have not been represented. Similarly, the plate, on which the pieces of the repetition are mounted, does not appear in the drawing.
  • the energy required for the operation of the repetition is provided by a ringer barrel 10 which is armed, either by a rack that the wearer actuates, either by an automatic winding system with oscillating weight, or by manual winding.
  • the barrel 10 is automatically reassembled. It is held in the armed position by means of a wolf-tooth wheel 12. More specifically, the end of a first rocker 14 visible on the figure 2 and pivotally mounted at the periphery of the movement, forms a pawl that locks the wheel 12.
  • a pusher 16 protruding outside the box.
  • the latter actuates a second latch 18, also located on the periphery of the movement, pivoting at a point X and having a pin 20 which cooperates with the first latch 14, the side of the center of the movement.
  • the barrel 10 rotates a clocking driving wheel 22, pivoting in a clockwise direction (SAM below) at a point A, under the other parts of the repetition mechanism.
  • SAM clockwise direction
  • the unwinding of the barrel is slowed down by a brake 23 or an escapement disposed at the outlet of the barrel 10.
  • the flip-flop 18 further comprises a lug 18c taking up, at rest, in one of the two notches 200 formed on a diameter of a counting wheel 202, so named because, as will be understood hereafter, it makes it possible to determine the duration of a cycle of the repetition mechanism.
  • the rocker 18 When the pusher 16 is pressed, the rocker 18 is raised and the barrel 10 is released. The counting wheel 202 is then rotated and, when the pusher 16 is released, the lug 18c bears on the edge of the counting wheel 202 which has rotated, which keeps the latch 18 in position and prevents the ratchet to fall back and lock the barrel 10. When the wheel 202 has made a half turn, the lug 18c goes down into the other notch 200 and the latch 18 falls. The pin 20 of the rocker 18 no longer pushes on the rocker 14, the pawl can then fall, blocking the barrel 10. The rotational speed of the counting wheel 202 is adjusted to allow the striking mechanism to perform a complete cycle while this wheel makes a U-turn.
  • the barrel 10 is kinematically connected with a gear train 210 performing a turn in a period substantially equal to that of the power reserve of the barrel.
  • This wheel is used to display, in a window of the dial, information on the power reserve of the barrel ring.
  • the gear 210 carries, on its axis, a cam 212 intended to cooperate with a finger 216a of a flip-flop 216.
  • a cam 212 intended to cooperate with a finger 216a of a flip-flop 216.
  • One end of the latter ends near the rocker 18, particularly a hook 18a that it involves.
  • This end is provided with a pillar 216b located on the cam and a stop 216c located below it and intended to act with the hook 18a.
  • a jumper spring 218 has two contiguous housings 218a and 218b which cooperate with the pillar 216b.
  • the interaction between the cam 212 and the finger 216a makes it possible to drive the pillar 216 from one to the other of the housings, the pressure of the spring 218 not allowing the rocker 216 to occupy only two positions.
  • the cam 212 is positioned so as to cross the finger 216a when the power reserve of the barrel does not make it possible to carry out a complete ringing repetition cycle at minutes, that is to say when it is approximately less than 30. % of the total reserve.
  • the flip-flop 216 When the power reserve is greater than this value, the flip-flop 216 is in the first of its positions, the pillar 216b being located in the housing 218a and the stop 216c leaving free the hook 18a.
  • the rotation of the gear 210 and the position of the cam 212 allow it to push the finger 216a and pass the latch 216 in its second position.
  • the pillar 216b is then located in the housing 218b and the stop 216c is positioned in the hollow of the hook 18a.
  • the latch 18 can not be actuated because the stop 216c blocks it at the hook 18a.
  • the barrel 10 can not be released and there is no ring.
  • the display indicates in the window, when the rocker is in its first position, that the repeat mechanism is usable, for example by means of a sector of a first color and, when the rocker is in its second position, that the mechanism is blocked, by means of a pellet of another color.
  • the mechanism is provided with a counting member which comprises a set of snails of known type, driven by the finishing gear.
  • a counting member which comprises a set of snails of known type, driven by the finishing gear.
  • it comprises a minute snail 24 with four arms each provided with fourteen teeth, adjusted on a tigeron of the roadway in the center of the movement, and a quarter snail 26 provided with three teeth, in solidarity with the surprise.
  • a snail of hours 28 is disposed on a star with twelve teeth 30, advancing one step per hour.
  • the minutes snail 24 is provided with a surprise, of conventional type, provided with a jumper 31.
  • This mechanism is intended to prevent, at the time of passage from one quarter to another, the minute probe (described below) falls directly to the "0 minute” level.
  • the repetition comprises, at its periphery, two stamps 32a and 32b that two hammers 34a and 34b, driven by upper levies 36a and lower 36b, sound.
  • the stamps 32a and 32b can be made in one or more independent pieces.
  • the springs and counter-springs of the hammers are not shown.
  • the pallet 44a is positioned to act on the pin 46a during a rising phase of its rotational movement in the counter-clockwise direction (SIAM below).
  • the pallet 44b is positioned to act on the pin 46b during a downward phase of its rotational movement in the SIAM.
  • the lifts can, thanks to their structure, be operated separately or together, depending on the shape and especially the thickness of the toothed sectors.
  • the relative positioning of the nozzles makes it possible to adjust the offset in time of hammer strike.
  • a ringing part 100 is pivotally mounted at A. It comprises a base 100a of generally triangular shape, the point A being located near one of the corners, and a rake 100b. The latter presents successively from left to right, along its outer edge, that is to say on the outside of the movement, a toothed sector of the hours 106 positioned, in the direction of the thickness of the mechanism, at the level of the lower lift 36b, a free space of teeth 104 whose role will appear later, and a toothed sector minutes minutes 102, positioned in the direction of the thickness of the mechanism, at the upper lift 36a.
  • a hollow 107 visible on the Figures 4 to 7 and whose role will appear later, is provided at the level of the free space 104.
  • the bell part 100 carries, beneath it, a flip-flop 112 visible on the Figures 4 to 7 and pivoting at a point B.
  • the latter is provided with a first pin 114 intended to cooperate with the ring driving wheel 22, and a second pin 116 rising on the dial side and passing through the piece 100 through an opening 118 As will be seen below, this pin 116 serves to actuate the rocker.
  • a spring 120 is fixed on one side to the plate and, on the other side to the striking piece 100 and exerts a force tending to drive the piece 100 in the SIAM.
  • the stop means blocking the piece 100 will be explained hereinafter.
  • a part called trigger 122 is pivotally mounted at A on the striking piece 100 and is coupled thereto by a rod 124 (or a screw, for example) which passes through an oblong hole in the piece 100.
  • the trigger 122 comprises a first 128 and a second arm 130 in the form of circular arcs, concentrically oriented to the driving wheel 22.
  • the first arm 128 terminates with a probe 128a intended to collaborate with the snail minutes 24.
  • the second arm 130 ends with a probe 130a intended to collaborate with the snail of hours 28.
  • the trigger 122 has a housing 132 in which takes place the pin 116 of the flip-flop 112.
  • the piece 100 can move relative to the trigger 122, which causes the pivoting of the rocker 112 and engages the pin 114 on the driving wheel 22.
  • the second arm 130 is provided on its outer edge with a lug 134 intended to cooperate with the spring 110.
  • the latter positions the trigger 122 in abutment on one or other end of the oblong 126. He forces the rocking 112 to be in one or other of its extreme positions, that is to say engaged or completely disengaged.
  • a quarter piece 136 is pivotally mounted, by known means, at a point C on the ringing piece 100.
  • This piece 136 has, overall, the shape of a conventional ring rake. More particularly, one of its corners 136a delimits, on one side, a locking surface 136b and, on the other side, a bearing surface 136c. This is formed by the edge of the piece 136 located on the side of the center of the movement which draws a portion of a circle centered on the point A.
  • the quarter piece 136 has, in addition, a toothed portion 136d, arranged to be positioned in the free space 104.
  • This portion 136d has only three teeth, respectively intended to ring the first, the second and the third quarter the current time. Its thickness and its positioning allow the teeth to cross, in their race, the nozzles 130 of the two lifts 36. Given the structure of the latter described above, each tooth first actuates one 36b and then, immediately afterwards, other 36a raises, thus producing the sound usually identifying the quarters.
  • the quarter part 136 is provided with a pressure surface 136e with which the spring 108 cooperates, exerting a force which tends to tilt the toothed portion 136e towards the center of the movement.
  • the piece 136 has a shoulder 136g for cooperating with the recess 107 of the ringing part.
  • the piece 136 has a boss 136f.
  • the latter and the toothed portion 136d are located on either side of the pivot point C.
  • the boss makes it possible to actuate and rotate the workpiece 136.
  • a quarter control 138 is mounted, under the ringing piece 100, rotatable about the point A. It comprises a first arm 140 ending in a probe 140a intended to cooperate with the quarter snail 26. It comprises, in addition , a second arm 142 having a wedge 142a defining, on one side, a locking sector 142b, and, on the other side, a bearing sector 142c. This is formed by the edge of the arm 142 located on the side of the periphery of the movement and draws a portion of a circle centered on the point A. It will be explained hereinafter how the control 138 and the quarter part 136 cooperate.
  • a pin 144 is positioned in the plate to limit the stroke of the command 138 in the SIAM.
  • the second latch 18 mentioned above has a second hook 18b cooperating with a connecting rod 148 formed essentially of a first arm 148a and a second arm 148b.
  • the rod is pivotally mounted on the plate at a point D located at the first end of the arm 148a.
  • the arms 148a and 148b are articulated at a point E located at the second end of the arm 148a and at the first end of the arm 148b.
  • a spring 150 connecting the first arm 148a to the second end of the second arm 148b exerts a force holding the arms of the rod in a semi-folded position.
  • the second end of the arm 148b has a first narrow cylindrical portion 152 and a larger diameter platen 154 for acting on the boss 136f of the quarter piece 136 to rotate it.
  • a pin 156 is fixed in the plate. It is truncated and has a flat part 156a intended to cooperate with the part 152 to guide the movement of the connecting rod 148.
  • the latch 18, via the hook 18b pushes the rod 148 near the point D so as to rotate around this point.
  • the cylindrical portion 152 rests on the flat part 156a, and the arms 148a and 148b unfold, putting the spring 150 under tension.
  • the plate 154 pushes the boss 136f, then the portion 152 exceeds the flat.
  • the rod 148 resumes its initial position, in order to prevent the plate hinders the stroke of the quarter piece 136.
  • the figure 4 gives a close-up of the area specific to the rehearsal mechanism in the rest position.
  • Sector 142b and 136b block 136b of the control 138 and the quarter part 136 are vis-à-vis one another.
  • the spring 108 presses the part of the quarters 136, but it is positioned in abutment with the support of the shoulder 136g on the recess 107.
  • the sector 142b and the surface 136b rely one on the other under the effect of the springs 120 and 108.
  • the spring 120 all the ringing parts is positioned by the support of the quarter control 138 on the pin 144 which form a stop member.
  • the rocker is not engaged on the driving wheel which does not rotate, the ringer barrel being kept blocked by the ratchet rocker 14.
  • the carrier presses on the pusher 16. On the one hand, this causes, via the latches 14 and 18, the release of the ringing barrel 10 which rotates the driving wheel 22. On the other hand, the rod 148 presses on the boss 136f and pivots the piece 136. The sector 142b and the blocking surface 136b, respectively of the control 138 and the quarter piece 136 slide over each other.
  • the wedges 136a and 142a escape from each other, all the ringing parts formed by the piece 100, the trigger 122 and the quarter piece 136, turn in the SIAM around the point A, until the probe hours 130a bears on the snail hour 28.
  • the toothed sectors 102 and 136d operate the lifts 36 without any effect on the hammers .
  • the ringing part 100 is positioned so that ten teeth are upstream of the lifts, that is to say they are ready to actuate them again when the ringing parts will turn in the SAM, with, this time, an effect on the hammers 34.
  • the spring 108 presses on the pressure surface 136e of the quarter piece 136 which rests on the arm 142 of the quarter control 138.
  • the toothed portion 136d remains at the toothed sectors of minutes 102 and hours 106 and is likely to cross the beaks 38 of the lifts 36.
  • the driving wheel 22 brings all the ringing parts back into the SAM.
  • the friction generated between the bearing surface 136c and the support sector 142c also drives the control of the quarters in the SAM.
  • the ten teeth of the hours sector 106 positioned upstream of the lift 36a successively cross the spout 38a and actuate the hammer 34a which strikes the stamp 20a to ring the ten strokes of the hours.
  • the teeth portion 136d in turn cross the beaks levées. Because of their thickness, they successively push the two lifts 36 and actuate the two hammers 34b and 34a which strike, in an offset manner, the stamps 32b and 32a to ring the quarters.
  • the probe 142b of the quarter control 138 When, still driven by the friction of the striking piece, the probe 142b of the quarter control 138 is supported on the quarter snail 26 to take the information relative to the number of quarters of the current time, the piece 138 stops his movement. The corner 142a of the quarter control 138 is then positioned in such a way that when the corner 136a of the quarter piece 136 reaches the level of the corner 142a of the control, the number of teeth useful for the ringing crosses the lifts 36 .
  • the piece 100 and the quarter piece 136 continue their rotation, still under the action of the driving wheel 22.
  • the teeth of the minutes sector 102 then cross the spout 38b of the lift 36b and push it successively to actuate the hammer 34b which hit the 20b stamp to ring the minutes.
  • the minute buzzer continues until the minute probe 128a comes to take its information on the minutes snail 24, which stops the trigger movement 122 ( figure 5 ).
  • the number of teeth then crossed the lift 36b corresponds to the number of minutes to ring (10 in the example).
  • the striking piece 100 is always moved by the driving wheel 22. Thanks to the oblong opening, the parts 100 and 122 then have a relative movement which actuates the lever 112 and causes the wheel 22 to disengage.
  • the counting wheel 202 allows the barrel 10 to remain free during the cycle of the repetition mechanism.
  • a minute repeater mechanism comprising a reduced number of parts. As a result, it is easier to set up and adjust, especially at the quarter ring level.
  • the three teeth of the quarter sector can actuate non-coaxial lifts, but whose centers of rotation are very close. It suffices, indeed, that the distance between the two nozzles is less than the distance separating two consecutive teeth.

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Abstract

The mechanism has a gong emitting two sounds of different frequencies, and pallets (36). Hammers are moved by the pallets to strike the gong, where the pallets are arranged coaxially. The pallet has a tip cooperating with toothed sectors mounted movably in movement in order to pivot the tip. A spring is supported on a positioning surface to maintain the pallet in a rest position. The pallet has a pallet fork to directly act on a pin having the hammers to strike the gong.

Description

Domaine techniqueTechnical area

La présente invention se rapporte au domaine de l'horlogerie mécanique. Elle concerne, plus particulièrement, un mécanisme connu de l'homme du métier sous le nom de répétition à minutes.The present invention relates to the field of mechanical watchmaking. It relates more particularly to a mechanism known to those skilled in the art as the minute repeater.

Etat de la techniqueState of the art

Un tel dispositif permet d'indiquer, sur demande, l'heure à la minute près, au moyen de coups frappés par deux marteaux sur deux timbres différents. Les marteaux sont actionnés par des levées qui sont soulevées par un mécanisme de sonnerie. Celui-ci comprend une pièce des heures, une des quarts et une des minutes, dotées respectivement de douze, trois et quatorze dents pour sonner les heures, les quarts et les minutes.Such a device makes it possible to indicate, on demand, the hour to the minute, by means of blows struck by two hammers on two different stamps. The hammers are operated by lifts that are raised by a striking mechanism. This includes a room of hours, a quarter and a minute, with twelve, three and fourteen teeth respectively to ring the hours, quarters and minutes.

Afin de régler le déplacement de ces pièces, un limaçon des heures est disposé sur une étoile à douze dents, avançant d'un pas par heure, tandis qu'un limaçon des quarts et un autre des minutes sont ajustés sur le tigeron de la chaussée. Trois bascules, dotées chacune d'un palpeur coopérant avec ces limaçons, permettent de déterminer la course des pièces des heures, des quarts et des minutes et d'ajuster le nombre de coups sonnés.In order to regulate the movement of these pieces, a snail of the hours is arranged on a star with twelve teeth, advancing one step per hour, while a quarter snail and another minute are adjusted on the bolster of the roadway . Three flip-flops, each equipped with a probe cooperating with these snails, make it possible to determine the stroke of the parts of the hours, quarters and minutes and to adjust the number of blows sounded.

On trouvera d'autres détails sur ce genre de complications, notamment sur la force motrice de la répétition ou sur l'étape de décrochement, c'est-à-dire sur le déclenchement de la sonnerie, dans le livre " Théorie de l'horlogerie" de Reymondin et al, Fédération des Ecoles Techniques, 1998, ISBN 2-940025-10-X, pages 219 à 224 .Further details on this kind of complications can be found, especially on the driving force of the repetition or on the step of recess, that is to say on the triggering of the ring, in the book " Theory of Watchmaking "by Reymondin et al, Federation of Technical Schools, 1998, ISBN 2-940025-10-X, pages 219-224 .

On pourra également se référer au document CH 44390 qui divulgue un mécanisme de répétition à minutes dans lequel un secteur denté destiné à sonner les heures et un secteur denté destiné à sonner les quarts sont disposés sur une même pièce de sonnerie.We can also refer to the document CH 44390 which discloses a minute repeater mechanism in which a toothed sector for ringing the hours and a toothed sector for ringing the quarters are arranged on the same ringing part.

Une des nombreuses complexités de ce mécanisme vient du fait du grand nombre de pièces qui doivent être coordonnées et ajustées afin d'avoir un fonctionnement correct.One of the many complexities of this mechanism is the large number of parts that need to be coordinated and adjusted in order to function properly.

La présente invention a pour but de proposer un nouveau mécanisme de répétition à minutes, mettant en oeuvre un nombre relativement peu élevé de pièces, ce qui le rend plus simple à mettre au point.The object of the present invention is to propose a new minute repetition mechanism employing a relatively small number of parts, which makes it easier to develop.

Divulgation de l'inventionDisclosure of the invention

De façon plus précise, l'invention concerne une pièce de sonnerie destinée à être intégrée dans un mécanisme de répétition à minutes, comprenant un râteau qui présente successivement, le long de l'un de ses bords, un secteur denté des heures, un espace libre de denture et un secteur denté des minutes.More specifically, the invention relates to a striking piece intended to be integrated into a minute repeater mechanism, comprising a rake which successively presents, along one of its edges, a toothed sector of the hours, a space free of gearing and a toothed area of minutes.

Avantageusement, les secteurs dentés des minutes et des heures de cette pièce de sonnerie sont situés dans des plans différents.Advantageously, the toothed sectors of minutes and hours of this ringing part are located in different planes.

De plus, l'invention concerne une pièce d'horlogerie comprenant un mécanisme de répétition à minutes doté de:

  • une source d'énergie alimentant ledit mécanisme,
  • un organe de commande pour actionner ce mécanisme,
  • un organe de comptage pour prendre une information sur le temps courant, comprenant:
    • un limaçon des heures, un palpeur des heures,
    • un limaçon des quarts, un palpeur des quarts,
    • un limaçon des minutes, un palpeur des minutes,
  • un secteur denté des heures, un des quarts et un des minutes montés mobiles en rotation et dont le déplacement est déterminé par ledit organe de comptage, et
  • des moyens pour émettre un son comprenant:
    • deux levées susceptibles d'être actionnées par l'un et/ou l'autre des secteurs dentés,
    • deux marteaux mus par les levées, et
    • deux timbres sur lesquels frappent lesdits marteaux pour émettre un son.
In addition, the invention relates to a timepiece comprising a minute repeater mechanism provided with:
  • a source of energy supplying said mechanism,
  • a control member for actuating this mechanism,
  • a counting member for taking current time information, comprising:
    • a snail of the hours, a feeler of the hours,
    • a snail quarter, a quarter follower,
    • a snail of the minutes, a feeler of the minutes,
  • a toothed sector of the hours, one of the quarters and one of the minutes mounted mobile in rotation and whose movement is determined by said counting member, and
  • means for transmitting a sound comprising:
    • two lifts that can be actuated by one and / or the other of the toothed sectors,
    • two hammers driven by the levees, and
    • two stamps on which hit said hammers to emit a sound.

Avantageusement, les secteurs dentés des heures et des minutes sont situés sur une pièce de sonnerie telle que définie ci-dessus.Advantageously, the hour and minute toothed sectors are located on a ringing part as defined above.

Brève description des dessinsBrief description of the drawings

D'autres détails apparaîtront plus clairement à la lecture de la description qui suit, faite en regard du dessin annexé dans lequel:

  • les figures 1a et 1b sont des vues de dessus du mécanisme au repos, la vue globale ayant été partagée sur les deux figures,
  • les figures 2 et 3 sont des gros plans, en vue de dessus, d'une part, de la zone du mécanisme proche du barillet et, d'autre part, des levées, des timbres et des marteaux, et
  • les figures 4 à 7 représentent différentes positions du mécanisme au cours d'une sonnerie de 10h40.
Other details will appear more clearly on reading the description which follows, made with reference to the appended drawing in which:
  • Figures 1a and 1b are top views of the mechanism at rest, the overall view having been shared on the two figures,
  • the figures 2 and 3 are closeups, in plan view, on the one hand, of the zone of the mechanism close to the barrel and, on the other hand, levies, stamps and hammers, and
  • the Figures 4 to 7 represent different positions of the mechanism during a 10h40 ring.

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

Le mécanisme de répétition à minutes selon l'invention est décrit ci-après en référence à la figure 1. Il prend place dans un mouvement d'horlogerie classique dont les éléments courants, par souci de clarté, n'ont pas été représentés. De même, la platine, sur laquelle les pièces de la répétition sont montées, ne figure pas au dessin.The minute repetition mechanism according to the invention is described below with reference to the figure 1 . It takes place in a classic watch movement whose current elements, for the sake of clarity, have not been represented. Similarly, the plate, on which the pieces of the repetition are mounted, does not appear in the drawing.

Remontoir et actionnementWinder and actuation

L'énergie nécessaire au fonctionnement de la répétition est fournie par un barillet de sonnerie 10 qui est armé, soit par une crémaillère que le porteur actionne, soit par un système de remontage automatique à masse oscillante, soit par remontage manuel.The energy required for the operation of the repetition is provided by a ringer barrel 10 which is armed, either by a rack that the wearer actuates, either by an automatic winding system with oscillating weight, or by manual winding.

Dans l'exemple illustré, le barillet 10 est remonté automatiquement. Il est maintenu en position armée au moyen d'une roue à dents de loup 12. Plus précisément, l'extrémité d'une première bascule 14 visible sur la figure 2 et montée pivotante à la périphérie du mouvement, forme un cliquet qui bloque la roue 12. Lorsque le porteur de la montre veut actionner le mécanisme de répétition à minutes, il presse un poussoir 16 dépassant à l'extérieur de la boîte. Ce dernier actionne une deuxième bascule 18, située elle aussi à la périphérie du mouvement, pivotant en un point X et comportant une goupille 20 qui coopère avec la première bascule 14, du côté du centre du mouvement.In the illustrated example, the barrel 10 is automatically reassembled. It is held in the armed position by means of a wolf-tooth wheel 12. More specifically, the end of a first rocker 14 visible on the figure 2 and pivotally mounted at the periphery of the movement, forms a pawl that locks the wheel 12. When the wearer of the watch wants to operate the repeater mechanism to minutes, it presses a pusher 16 protruding outside the box. The latter actuates a second latch 18, also located on the periphery of the movement, pivoting at a point X and having a pin 20 which cooperates with the first latch 14, the side of the center of the movement.

Une pression sur le poussoir 16 fait pivoter la bascule 18 dont la goupille 20 pousse la bascule 14. Le cliquet est alors soulevé, ce qui a pour effet de libérer le barillet 10.A pressure on the pusher 16 pivots the lever 18 whose pin 20 pushes the rocker 14. The pawl is then raised, which has the effect of releasing the barrel 10.

Par un train de rouages conventionnels, le barillet 10 met en rotation une roue entraîneuse de sonnerie 22, pivotant dans le sens des aiguilles d'une montre (SAM ci-après) en un point A, sous les autres pièces du mécanisme de répétition. Le dévidement du barillet est ralenti par un frein 23 ou un échappement disposé à la sortie du barillet 10.By a train of conventional wheels, the barrel 10 rotates a clocking driving wheel 22, pivoting in a clockwise direction (SAM below) at a point A, under the other parts of the repetition mechanism. The unwinding of the barrel is slowed down by a brake 23 or an escapement disposed at the outlet of the barrel 10.

La bascule 18 comporte, en outre, un ergot 18c prenant place, au repos, dans une des deux encoches 200 ménagées sur un diamètre d'une roue de comptage 202, ainsi nommée car, comme on le comprendra ci-après, elle permet de déterminer la durée d'un cycle du mécanisme de répétition.The flip-flop 18 further comprises a lug 18c taking up, at rest, in one of the two notches 200 formed on a diameter of a counting wheel 202, so named because, as will be understood hereafter, it makes it possible to determine the duration of a cycle of the repetition mechanism.

Un train de rouage situé à un niveau inférieur par rapport aux éléments déjà décrits, relie le barillet 10 à un mobile intermédiaire situé sous la roue de comptage 202, coaxialement et solidairement à elle. Il n'est donc pas visible au dessin.A gear train located at a lower level with respect to the elements already described, connects the barrel 10 to an intermediate mobile located under the counting wheel 202, coaxially and integrally with it. It is therefore not visible in the drawing.

Lorsque le poussoir 16 est pressé, la bascule 18 est soulevée et le barillet 10 est libéré. La roue de comptage 202 est alors entraînée en rotation et, lorsque le poussoir 16 est relaché, l'ergot 18c prend appui sur le bord de la roue de comptage 202 qui a tourné, ce qui maintient la bascule 18 en position et empêche le cliquet de retomber et de bloquer le barillet 10. Lorsque la roue 202 a effectué un demi-tour, l'ergot 18c redescend dans l'autre encoche 200 et la bascule 18 retombe. La goupille 20 de la bascule 18 ne pousse plus sur la bascule 14, le cliquet peut alors retomber, bloquant le barillet 10. La vitesse de rotation de la roue de comptage 202 est ajustée pour permettre au mécanisme de sonnerie d'effectuer un cycle complet pendant que cette roue accomplit un demi-tour.When the pusher 16 is pressed, the rocker 18 is raised and the barrel 10 is released. The counting wheel 202 is then rotated and, when the pusher 16 is released, the lug 18c bears on the edge of the counting wheel 202 which has rotated, which keeps the latch 18 in position and prevents the ratchet to fall back and lock the barrel 10. When the wheel 202 has made a half turn, the lug 18c goes down into the other notch 200 and the latch 18 falls. The pin 20 of the rocker 18 no longer pushes on the rocker 14, the pawl can then fall, blocking the barrel 10. The rotational speed of the counting wheel 202 is adjusted to allow the striking mechanism to perform a complete cycle while this wheel makes a U-turn.

Comme on le voit mieux sur la figure 2, le barillet 10 est relié cinématiquement avec un rouage 210 effectuant un tour en une durée sensiblement égale à celle de la réserve de marche du barillet. Ce rouage permet d'afficher, dans un guichet du cadran, une information sur la réserve de marche du barillet de sonnerie.As we see better on the figure 2 , the barrel 10 is kinematically connected with a gear train 210 performing a turn in a period substantially equal to that of the power reserve of the barrel. This wheel is used to display, in a window of the dial, information on the power reserve of the barrel ring.

Avantageusement, le rouage 210 porte, sur son axe, une came 212 destinée à coopérer avec un doigt 216a d'une bascule 216. L'une des extrémités de cette dernière se termine à proximité de la bascule 18, particulièrement d'un crochet 18a qu'elle comporte. Cette extrémité est munie d'un pilier 216b situé sur la came et d'une butée 216c située sous elle et destinée à agir avec le crochet 18a. Un ressort sautoir 218 présente deux logements contigus 218a et 218b qui coopèrent avec le pilier 216b. L'interaction entre la came 212 et le doigt 216a permet d'entraîner le pilier 216 de l'un à l'autre des logements, la pression du ressort 218 ne permettant à la bascule 216 de n'occuper que deux positions.Advantageously, the gear 210 carries, on its axis, a cam 212 intended to cooperate with a finger 216a of a flip-flop 216. One end of the latter ends near the rocker 18, particularly a hook 18a that it involves. This end is provided with a pillar 216b located on the cam and a stop 216c located below it and intended to act with the hook 18a. A jumper spring 218 has two contiguous housings 218a and 218b which cooperate with the pillar 216b. The interaction between the cam 212 and the finger 216a makes it possible to drive the pillar 216 from one to the other of the housings, the pressure of the spring 218 not allowing the rocker 216 to occupy only two positions.

La came 212 est positionnée de manière à croiser le doigt 216a lorsque la réserve de marche du barillet ne permet pas d'effectuer un cycle complet de sonnerie de répétition à minutes, c'est-à-dire lorsqu'elle est environ inférieure à 30% de la réserve totale.The cam 212 is positioned so as to cross the finger 216a when the power reserve of the barrel does not make it possible to carry out a complete ringing repetition cycle at minutes, that is to say when it is approximately less than 30. % of the total reserve.

Lorsque la réserve de marche est supérieure à cette valeur, la bascule 216 est dans la première de ses positions, le pilier 216b étant situé dans le logement 218a et la butée 216c laissant libre le crochet 18a. Lorsque la réserve devient inférieure à cette valeur, la rotation du rouage 210 et la position de la came 212 permettent à celle-ci de pousser le doigt 216a et de faire passer la bascule 216 dans sa deuxième position. Le pilier 216b est alors situé dans le logement 218b et la butée 216c est positionnée au creux du crochet 18a.When the power reserve is greater than this value, the flip-flop 216 is in the first of its positions, the pillar 216b being located in the housing 218a and the stop 216c leaving free the hook 18a. When the reserve falls below this value, the rotation of the gear 210 and the position of the cam 212 allow it to push the finger 216a and pass the latch 216 in its second position. The pillar 216b is then located in the housing 218b and the stop 216c is positioned in the hollow of the hook 18a.

Ainsi, lorsque le porteur appuie sur le poussoir 16 pour déclencher la répétition à minutes, la bascule 18 ne peut être actionnée, car la butée 216c la bloque au niveau du crochet 18a. Le barillet 10 ne peut donc être libéré et il n'y a pas de sonnerie.Thus, when the wearer presses the pusher 16 to trigger the minute repeater, the latch 18 can not be actuated because the stop 216c blocks it at the hook 18a. The barrel 10 can not be released and there is no ring.

De préférence, l'affichage indique dans le guichet, lorsque la bascule est dans sa première position, que le mécanisme de répétition est utilisable, par exemple au moyen d'un secteur d'une première couleur et, lorsque la bascule est dans sa deuxième position, que le mécanisme est bloqué, au moyen d'une pastille d'une autre couleur.Preferably, the display indicates in the window, when the rocker is in its first position, that the repeat mechanism is usable, for example by means of a sector of a first color and, when the rocker is in its second position, that the mechanism is blocked, by means of a pellet of another color.

Organe de comptageCounting organ

Pour prendre des informations relatives au temps courant, le mécanisme est doté d'un organe de comptage qui comporte un ensemble de limaçons de type connu, entraîné par le rouage de finissage. En résumé, il comporte un limaçon des minutes 24 doté de quatre bras munis chacun de quatorze dents, ajusté sur un tigeron de la chaussée au centre du mouvement, et un limaçon des quarts 26 muni de trois dents, solidaire de la surprise. En outre, un limaçon des heures 28 est disposé sur une étoile à douze dents 30, avançant d'un pas par heure.To take information relating to the current time, the mechanism is provided with a counting member which comprises a set of snails of known type, driven by the finishing gear. In summary, it comprises a minute snail 24 with four arms each provided with fourteen teeth, adjusted on a tigeron of the roadway in the center of the movement, and a quarter snail 26 provided with three teeth, in solidarity with the surprise. In addition, a snail of hours 28 is disposed on a star with twelve teeth 30, advancing one step per hour.

Avantageusement et comme représenté sur les figures, le limaçon des minutes 24 est doté d'une surprise, de type classique, munie d'un sautoir 31. Ce mécanisme vise à éviter, au moment du passage d'un quart à l'autre, que le palpeur des minutes (décrit ci-après) tombe directement au niveau de "0 minute". On trouvera des explications sur ce dispositif bien connu dans la référence citée dans l'introduction.Advantageously and as shown in the figures, the minutes snail 24 is provided with a surprise, of conventional type, provided with a jumper 31. This mechanism is intended to prevent, at the time of passage from one quarter to another, the minute probe (described below) falls directly to the "0 minute" level. Explanations of this well-known device can be found in the reference cited in the introduction.

Timbres et levéesStamps and levees

Comme le montre particulièrement la figure 3, la répétition comprend, à sa périphérie, deux timbres 32a et 32b que deux marteaux 34a et 34b, mus par des levées supérieure 36a et inférieure 36b, font sonner. Les timbres 32a et 32b peuvent être réalisés en une seule ou plusieurs pièces indépendantes. Les ressorts et contre-ressorts des marteaux ne sont pas représentés.As is particularly the case figure 3 , the repetition comprises, at its periphery, two stamps 32a and 32b that two hammers 34a and 34b, driven by upper levies 36a and lower 36b, sound. The stamps 32a and 32b can be made in one or more independent pieces. The springs and counter-springs of the hammers are not shown.

Selon une caractéristique importante de l'invention, ces levées sont disposées coaxialement. Elles présentent chacune:

  • un bec 38 qui coopère avec des secteurs dentés afin de les faire pivoter,
  • une surface de positionnement 40 sur laquelle appuie un ressort 42 pour les maintenir dans leur position de repos, et
  • une palette 44 qui agit directement sur une goupille 46 que comportent les marteaux 34 pour leur faire frapper les timbres 32.
According to an important characteristic of the invention, these lifts are arranged coaxially. They each present:
  • a spout 38 which cooperates with toothed sectors in order to rotate them,
  • a positioning surface 40 on which a spring 42 presses to hold them in their rest position, and
  • a pallet 44 which acts directly on a pin 46 that the hammers 34 comprise to make them strike the stamps 32.

Pour la levée supérieure 36a, la palette 44a est positionnée de manière à agir sur la goupille 46a au cours d'une phase montante de son mouvement de rotation dans le sens anti-horaire (SIAM ci-après).For the upper lift 36a, the pallet 44a is positioned to act on the pin 46a during a rising phase of its rotational movement in the counter-clockwise direction (SIAM below).

Pour la levée inférieure 36b, la palette 44b est positionnée de manière à agir sur la goupille 46b au cours d'une phase descendante de son mouvement de rotation dans le SIAM.For the lower lift 36b, the pallet 44b is positioned to act on the pin 46b during a downward phase of its rotational movement in the SIAM.

Quand les secteurs dentés pivotent dans le SIAM et actionnent les levées 36 de la droite vers la gauche, en référence à la figure 2, celles-ci sont entraînées dans le SAM, ce qui n'a pas d'effet sur les marteaux 34 (car cela fait s'éloigner les palettes de la goupille 46), puis elles reprennent leur position initiale sous l'effet du ressort 42.When the toothed sectors pivot in the SIAM and operate the lifts 36 from right to left, with reference to the figure 2 , these are driven into the SAM, which has no effect on the hammers 34 (as it makes the pallets move away from the pin 46), then they resume their initial position under the effect of the spring 42.

Quand les secteurs dentés pivotent dans le SAM et actionnent les levées 36 de la gauche vers la droite, en référence à la figure 2, celles-ci sont entraînées dans le SIAM. Les palettes 44 poussent alors les goupilles 46, ce qui permet d'actionner les marteaux 34a et 34b et de faire sonner, respectivement, les timbres 32a et 32b.When the toothed sectors pivot in the SAM and actuate the lifts 36 from left to right, with reference to the figure 2 , these are trained in the SIAM. The pallets 44 then push the pins 46, which allows to operate the hammers 34a and 34b and to ring, respectively, the stamps 32a and 32b.

Comme on le comprendra ci-après, les levées peuvent, grâce à leur structure, être actionnées séparément ou ensemble, en fonction de la forme et surtout de l'épaisseur des secteurs dentés. De plus, dans le cas où l'un des secteurs dentés embrasse l'épaisseur des deux levées, le positionnement relatif des becs permet d'ajuster le décalage dans le temps de la frappe des marteaux.As will be understood below, the lifts can, thanks to their structure, be operated separately or together, depending on the shape and especially the thickness of the toothed sectors. In addition, in the case where one of the toothed sectors embraces the thickness of the two lifts, the relative positioning of the nozzles makes it possible to adjust the offset in time of hammer strike.

Ensemble des pièces de sonnerie (figure 1)Set of ringing pieces (Figure 1)

Particulièrement à l'invention, une pièce de sonnerie 100 est montée pivotante en A. Elle comporte une base 100a de forme globalement triangulaire, le point A étant situé à proximité de l'un des angles, et un râteau 100b. Ce dernier présente successivement de la gauche vers la droite, le long de son bord externe, c'est-à-dire du côté de l'extérieur du mouvement, un secteur denté des heures 106 positionné, dans le sens de l'épaisseur du mécanisme, au niveau de la levée inférieure 36b, un espace libre de denture 104 dont le rôle apparaîtra plus loin, et un secteur denté des minutes 102 positionné, dans le sens de l'épaisseur du mécanisme, au niveau de la levée supérieure 36a. Une creusure 107, visible sur les figures 4 à 7 et dont le rôle apparaîtra plus loin, est ménagée au niveau de l'espace libre 104.Particularly to the invention, a ringing part 100 is pivotally mounted at A. It comprises a base 100a of generally triangular shape, the point A being located near one of the corners, and a rake 100b. The latter presents successively from left to right, along its outer edge, that is to say on the outside of the movement, a toothed sector of the hours 106 positioned, in the direction of the thickness of the mechanism, at the level of the lower lift 36b, a free space of teeth 104 whose role will appear later, and a toothed sector minutes minutes 102, positioned in the direction of the thickness of the mechanism, at the upper lift 36a. A hollow 107, visible on the Figures 4 to 7 and whose role will appear later, is provided at the level of the free space 104.

La pièce de sonnerie 100 porte sur elle:

  • un premier ressort 108 situé à proximité des secteurs dentés 102 et 106, et destiné à exercer une pression au niveau de l'espace libre 104, et
  • un deuxième ressort 110 de type sautoir, dont le rôle apparaîtra plus loin, positionné au niveau d'un des angles de la base 100a à l'exclusion de celui portant le point A.
The bell part 100 carries on it:
  • a first spring 108 located near the toothed sectors 102 and 106, and intended to exert pressure at the free space 104, and
  • a second spring type jumper, whose role will appear later, positioned at one of the corners of the base 100a to the exclusion of that bearing the point A.

En outre, la pièce de sonnerie 100 porte, sous elle, une bascule 112 visible sur les figures 4 à 7 et pivotant en un point B. Cette dernière est munie d'une première goupille 114 destinée à coopérer avec la roue entraîneuse de sonnerie 22, et d'une deuxième goupille 116 s'élevant côté cadran et traversant la pièce 100 à travers une ouverture 118. Comme on le verra ci-après, cette goupille 116 sert à l'actionnement de la bascule.In addition, the bell part 100 carries, beneath it, a flip-flop 112 visible on the Figures 4 to 7 and pivoting at a point B. The latter is provided with a first pin 114 intended to cooperate with the ring driving wheel 22, and a second pin 116 rising on the dial side and passing through the piece 100 through an opening 118 As will be seen below, this pin 116 serves to actuate the rocker.

Par ailleurs, un ressort 120 est fixé, d'un côté sur la platine et, de l'autre côté sur la pièce de sonnerie 100 et exerce une force tendant à entraîner la pièce 100 dans le SIAM. Les moyens de butée qui bloquent la pièce 100 seront expliqués ci-après.Furthermore, a spring 120 is fixed on one side to the plate and, on the other side to the striking piece 100 and exerts a force tending to drive the piece 100 in the SIAM. The stop means blocking the piece 100 will be explained hereinafter.

Une pièce appelée gâchette 122 est montée pivotante en A sur la pièce de sonnerie 100 et lui est accouplée par un tigeron 124 (ou une vis, par exemple) qui traverse un trou oblong ménagé dans la pièce 100. La gâchette 122 comporte un premier 128 et un deuxième 130 bras en forme d'arcs de cercle, orientés concentriquement à la roue entraîneuse 22. Le premier bras 128 se termine par un palpeur 128a destiné à collaborer avec le limaçon des minutes 24. Le deuxième bras 130 se termine par un palpeur 130a destiné à collaborer avec le limaçon des heures 28.A part called trigger 122 is pivotally mounted at A on the striking piece 100 and is coupled thereto by a rod 124 (or a screw, for example) which passes through an oblong hole in the piece 100. The trigger 122 comprises a first 128 and a second arm 130 in the form of circular arcs, concentrically oriented to the driving wheel 22. The first arm 128 terminates with a probe 128a intended to collaborate with the snail minutes 24. The second arm 130 ends with a probe 130a intended to collaborate with the snail of hours 28.

En outre, la gâchette 122 présente un logement 132 dans lequel prend place la goupille 116 de la bascule 112. Ainsi, grâce au jeu laissé par l'oblong 126, la pièce 100 peut se déplacer relativement à la gâchette 122, ce qui entraîne le pivotement de la bascule 112 et fait embrayer la goupille 114 sur la roue entraîneuse 22.In addition, the trigger 122 has a housing 132 in which takes place the pin 116 of the flip-flop 112. Thus, thanks to the clearance left by the oblong 126, the piece 100 can move relative to the trigger 122, which causes the pivoting of the rocker 112 and engages the pin 114 on the driving wheel 22.

Le deuxième bras 130 est muni, sur son bord externe, d'un ergot 134 destiné à coopérer avec le ressort 110. Celui-ci positionne la gâchette 122 en butée sur l'une ou l'autre des extrémités de l'oblong 126. Il force donc la bascule 112 à être dans l'une ou l'autre de ses positions extrêmes, c'est-à-dire embrayée ou complètement débrayée.The second arm 130 is provided on its outer edge with a lug 134 intended to cooperate with the spring 110. The latter positions the trigger 122 in abutment on one or other end of the oblong 126. He forces the rocking 112 to be in one or other of its extreme positions, that is to say engaged or completely disengaged.

En référence à la figure 6, une pièce des quarts 136 est montée pivotante, par des moyens connus, en un point C situé sur la pièce de sonnerie 100. Cette pièce 136 présente, globalement, la forme d'un râteau de sonnerie classique. Plus particulièrement, l'un de ses coins 136a délimite, d'un côté, une surface de blocage 136b et, de l'autre côté, une surface d'appui 136c. Celle-ci est formée par le bord de la pièce 136 situé du côté du centre du mouvement qui dessine une portion de cercle centrée sur le point A.With reference to the figure 6 , a quarter piece 136 is pivotally mounted, by known means, at a point C on the ringing piece 100. This piece 136 has, overall, the shape of a conventional ring rake. More particularly, one of its corners 136a delimits, on one side, a locking surface 136b and, on the other side, a bearing surface 136c. This is formed by the edge of the piece 136 located on the side of the center of the movement which draws a portion of a circle centered on the point A.

La pièce des quarts 136 présente, en outre, une portion dentée 136d, disposée de manière à être positionnée dans l'espace libre 104. Cette portion 136d ne comporte que trois dents, respectivement destinées à sonner le premier, le deuxième et le troisième quart de l'heure courante. Son épaisseur et son positionnement permettent aux dents de croiser, dans leur course, les becs 130 des deux levées 36. Vu la structure de ces dernières décrite ci-dessus, chaque dent actionne d'abord l'une 36b puis, immédiatement après, l'autre 36a des levées, produisant ainsi le son identifiant habituellement les quarts.The quarter piece 136 has, in addition, a toothed portion 136d, arranged to be positioned in the free space 104. This portion 136d has only three teeth, respectively intended to ring the first, the second and the third quarter the current time. Its thickness and its positioning allow the teeth to cross, in their race, the nozzles 130 of the two lifts 36. Given the structure of the latter described above, each tooth first actuates one 36b and then, immediately afterwards, other 36a raises, thus producing the sound usually identifying the quarters.

De plus, la pièce des quarts 136 est munie d'une surface de pression 136e avec laquelle coopère le ressort 108, exerçant une force qui tend à faire basculer la portion dentée 136e vers le centre du mouvement. A proximité de cette surface, la pièce 136 présente un épaulement 136g destiné à coopérer avec la creusure 107 de la pièce de sonnerie.In addition, the quarter part 136 is provided with a pressure surface 136e with which the spring 108 cooperates, exerting a force which tends to tilt the toothed portion 136e towards the center of the movement. Near this surface, the piece 136 has a shoulder 136g for cooperating with the recess 107 of the ringing part.

Enfin, la pièce 136 comporte un bossage 136f. Ce dernier et la portion dentée 136d sont situés de part et d'autre du point de pivotement C. Ainsi, le bossage permet d'actionner et de faire pivoter la pièce 136.Finally, the piece 136 has a boss 136f. The latter and the toothed portion 136d are located on either side of the pivot point C. Thus, the boss makes it possible to actuate and rotate the workpiece 136.

Une commande des quarts 138 est montée, sous la pièce de sonnerie 100, mobile en rotation autour du point A. Il comprend un premier bras 140 se terminant par un palpeur 140a destiné à coopérer avec le limaçon des quarts 26. Il comprend, en outre, un deuxième bras 142 présentant un coin 142a délimitant, d'un côté, un secteur de blocage 142b, et, de l'autre côté, un secteur d'appui 142c. Celui-ci est formé par le bord du bras 142 situé du côté de la périphérie du mouvement et dessine une portion de cercle centrée sur le point A. Il sera expliqué ci-après la manière dont la commande 138 et la pièce des quarts 136 coopèrent.A quarter control 138 is mounted, under the ringing piece 100, rotatable about the point A. It comprises a first arm 140 ending in a probe 140a intended to cooperate with the quarter snail 26. It comprises, in addition , a second arm 142 having a wedge 142a defining, on one side, a locking sector 142b, and, on the other side, a bearing sector 142c. This is formed by the edge of the arm 142 located on the side of the periphery of the movement and draws a portion of a circle centered on the point A. It will be explained hereinafter how the control 138 and the quarter part 136 cooperate.

Comme on le comprendra mieux ci-après, une goupille 144 est positionnée dans la platine pour limiter la course de la commande 138 dans le SIAM.As will be better understood below, a pin 144 is positioned in the plate to limit the stroke of the command 138 in the SIAM.

Organes de décrochementBreakaway organs

Comme on le voit mieux sur les figures 4 à 7, la deuxième bascule 18 mentionnée ci-dessus comporte un deuxième crochet 18b coopérant avec une bielle 148 formée essentiellement d'un premier bras 148a et d'un deuxième bras 148b. La bielle est montée pivotante sur la platine en un point D situé au niveau de la première extrémité du bras 148a. Les bras 148a et 148b sont articulés en un point E situé à la deuxième extrémité du bras 148a et à la première extrémité du bras 148b. Un ressort 150 reliant le premier bras 148a à la deuxième extrémité du deuxième bras 148b exerce une force maintenant les bras de la bielle dans une position semi repliée.As we see best on Figures 4 to 7 , the second latch 18 mentioned above has a second hook 18b cooperating with a connecting rod 148 formed essentially of a first arm 148a and a second arm 148b. The rod is pivotally mounted on the plate at a point D located at the first end of the arm 148a. The arms 148a and 148b are articulated at a point E located at the second end of the arm 148a and at the first end of the arm 148b. A spring 150 connecting the first arm 148a to the second end of the second arm 148b exerts a force holding the arms of the rod in a semi-folded position.

La deuxième extrémité du bras 148b présente une première partie cylindrique étroite 152 et un plateau 154 d'un diamètre supérieur destiné à agir sur le bossage 136f de la pièce des quarts 136 pour la faire pivoter.The second end of the arm 148b has a first narrow cylindrical portion 152 and a larger diameter platen 154 for acting on the boss 136f of the quarter piece 136 to rotate it.

Une goupille 156 est fixée dans la platine. Elle est tronquée et présente un méplat 156a destiné à coopérer avec la partie 152 pour guider le mouvement de la bielle 148.A pin 156 is fixed in the plate. It is truncated and has a flat part 156a intended to cooperate with the part 152 to guide the movement of the connecting rod 148.

Lorsque le poussoir est pressé, la bascule 18, via le crochet 18b, pousse la bielle 148 à proximité du point D de manière à la faire pivoter autour de ce point. La partie cylindrique 152 s'appuie sur le méplat 156a, et les bras 148a et 148b se déplient, mettant le ressort 150 sous tension. En fin de course, le plateau 154 pousse le bossage 136f, puis, la partie 152 dépasse le méplat. Sous l'effet du ressort 150, la bielle 148 reprend alors sa position initiale, afin d'éviter que le plateau gêne la course de la pièce des quarts 136.When the pusher is pressed, the latch 18, via the hook 18b pushes the rod 148 near the point D so as to rotate around this point. The cylindrical portion 152 rests on the flat part 156a, and the arms 148a and 148b unfold, putting the spring 150 under tension. At the end of the race, the plate 154 pushes the boss 136f, then the portion 152 exceeds the flat. Under the effect of the spring 150, the rod 148 then resumes its initial position, in order to prevent the plate hinders the stroke of the quarter piece 136.

Position de reposRest position

Pour plus de clarté, la figure 4 donne un gros plan de la zone propre au mécanisme de répétition dans la position de repos. Les secteur 142b et surface 136b de blocage de la commande 138 et de la pièce 136 des quarts sont en vis-à-vis l'un de l'autre. En effet, le ressort 108 presse la pièce des quarts 136, mais celle-ci est positionnée en butée grâce à l'appui de l'épaulement 136g sur la creusure 107. Le secteur 142b et la surface 136b s'appuient l'un sur l'autre sous l'effet des ressorts 120 et 108. Grâce au ressort 120, l'ensemble des pièces de sonnerie est positionné par l'appui de la commande des quarts 138 sur la goupille 144 qui forment un élément de butée.For clarity, the figure 4 gives a close-up of the area specific to the rehearsal mechanism in the rest position. Sector 142b and 136b block 136b of the control 138 and the quarter part 136 are vis-à-vis one another. Indeed, the spring 108 presses the part of the quarters 136, but it is positioned in abutment with the support of the shoulder 136g on the recess 107. The sector 142b and the surface 136b rely one on the other under the effect of the springs 120 and 108. With the spring 120, all the ringing parts is positioned by the support of the quarter control 138 on the pin 144 which form a stop member.

La bascule n'est pas embrayée sur la roue entraîneuse qui ne tourne pas, le barillet de sonnerie étant maintenu bloqué par la bascule à cliquet 14.The rocker is not engaged on the driving wheel which does not rotate, the ringer barrel being kept blocked by the ratchet rocker 14.

Les paragraphes ci-après se réfèrent aux figures 5 à 7 et explicitent le fonctionnement du mécanisme au cours de la sonnerie correspondant à l'indication de 10h40.The following paragraphs refer to Figures 5 to 7 and explain the operation of the mechanism during the ringing corresponding to the indication of 10:40.

Décrochementrecess

Pour faire fonctionner la sonnerie, le porteur presse sur le poussoir 16. D'une part, cela entraîne, via les bascules 14 et 18, la libération du barillet de sonnerie 10 qui met en rotation la roue entraîneuse 22. D'autre part, la bielle 148 appuie sur le bossage 136f et fait pivoter la pièce 136. Le secteur 142b et la surface 136b de blocage, respectivement de la commande 138 et de la pièce 136 des quarts glissent l'un sur l'autre.To operate the buzzer, the carrier presses on the pusher 16. On the one hand, this causes, via the latches 14 and 18, the release of the ringing barrel 10 which rotates the driving wheel 22. On the other hand, the rod 148 presses on the boss 136f and pivots the piece 136. The sector 142b and the blocking surface 136b, respectively of the control 138 and the quarter piece 136 slide over each other.

Lorsque que, le pivotement de la pièce 136 continuant, les coins 136a et 142a s'échappent l'un de l'autre, l'ensemble des pièces de sonnerie formé par la pièce 100, la gâchette 122 et la pièce des quarts 136, tourne dans le SIAM autour du point A, jusqu'à ce que le palpeur des heures 130a prenne appui sur le limaçon des heures 28. Les secteurs dentés 102 et 136d actionnent les levées 36 sans qu'il y ait d'effet sur les marteaux. La pièce de sonnerie 100 se positionne de manière à ce que dix dents se trouvent en amont des levées, c'est-à-dire qu'elles sont prêtes à les actionner à nouveau lorsque les pièces de sonnerie tourneront dans le SAM, avec, cette fois, un effet sur les marteaux 34.When, while the pivoting of the piece 136 continues, the wedges 136a and 142a escape from each other, all the ringing parts formed by the piece 100, the trigger 122 and the quarter piece 136, turn in the SIAM around the point A, until the probe hours 130a bears on the snail hour 28. The toothed sectors 102 and 136d operate the lifts 36 without any effect on the hammers . The ringing part 100 is positioned so that ten teeth are upstream of the lifts, that is to say they are ready to actuate them again when the ringing parts will turn in the SAM, with, this time, an effect on the hammers 34.

Le mouvement relatif des pièces de sonnerie, particulièrement de la pièce des quarts 136, par rapport à la commande des quarts 138, amène la surface d'appui 136c au contact du secteur d'appui 142c. Le ressort 108 presse sur la surface de pression 136e de la pièce des quarts 136 qui s'appuie sur le bras 142 de la commande des quarts 138. La portion dentée 136d reste au niveau des secteurs dentés des minutes 102 et des heures 106 et est susceptible de croiser les becs 38 des levées 36.The relative movement of the ring pieces, particularly of the quarter piece 136, with respect to the quarter control 138, brings the bearing surface 136c in contact with the support sector 142c. The spring 108 presses on the pressure surface 136e of the quarter piece 136 which rests on the arm 142 of the quarter control 138. The toothed portion 136d remains at the toothed sectors of minutes 102 and hours 106 and is likely to cross the beaks 38 of the lifts 36.

Le mouvement dans le SIAM de l'ensemble des pièces de sonnerie a pour effet de faire embrayer la bascule 112 sur la roue entraîneuse 22. Grâce à l'action conjuguée du ressort sautoir 110, l'embrayage ne se produit qu'après que le palpeur 130a ait pris son information sur le limaçon des heures 28.The movement in the SIAM of all the ringing parts has the effect of engaging the latch 112 on the driving wheel 22. Due to the combined action of the jumper spring 110, the clutch occurs only after the Probe 130a took its information on the snail of hours 28.

Une fois embrayée, la roue entraîneuse 22 ramène l'ensemble des pièces de sonnerie dans le SAM. Sous l'effet de la pression du ressort 108, le frottement engendré entre la surface d'appui 136c et le secteur d'appui 142c permet d'entraîner également la commande des quarts dans le SAM.Once engaged, the driving wheel 22 brings all the ringing parts back into the SAM. Under the effect of the pressure of the spring 108, the friction generated between the bearing surface 136c and the support sector 142c also drives the control of the quarters in the SAM.

Les dix dents du secteur des heures 106 positionnées en amont de la levée 36a croisent successivement le bec 38a et actionnent le marteau 34a qui frappe le timbre 20a pour sonner les dix coups des heures.The ten teeth of the hours sector 106 positioned upstream of the lift 36a successively cross the spout 38a and actuate the hammer 34a which strikes the stamp 20a to ring the ten strokes of the hours.

Puis, toujours mues par la roue 22, les dents la portion 136d croisent à leur tour les becs des levées. Grâce à leur épaisseur, elles poussent successivement les deux levées 36 et actionnent les deux marteaux 34b et 34a qui frappent, de manière décalée, les timbres 32b et 32a pour sonner les quarts.Then, still moved by the wheel 22, the teeth portion 136d in turn cross the beaks levées. Because of their thickness, they successively push the two lifts 36 and actuate the two hammers 34b and 34a which strike, in an offset manner, the stamps 32b and 32a to ring the quarters.

Lorsque, toujours entraîné par le frottement de la pièce de sonnerie, le palpeur 142b de la commande des quarts 138 prend appui sur le limaçon des quarts 26 pour prendre l'information relative au nombre de quarts de l'heure courante, la pièce 138 stoppe son mouvement. Le coin 142a de la commande des quarts 138 est alors positionné de telle manière que, lorsque le coin 136a de la pièce des quarts 136 arrive au niveau de celui 142a de la commande, le nombre de dents utiles à la sonnerie a croisé les levées 36.When, still driven by the friction of the striking piece, the probe 142b of the quarter control 138 is supported on the quarter snail 26 to take the information relative to the number of quarters of the current time, the piece 138 stops his movement. The corner 142a of the quarter control 138 is then positioned in such a way that when the corner 136a of the quarter piece 136 reaches the level of the corner 142a of the control, the number of teeth useful for the ringing crosses the lifts 36 .

Dans l'exemple représenté sur la figure 6 (40 minutes), lorsque deux quarts ont sonné, l'ensemble des pièces de sonnerie poursuivant leur mouvement, les coins 136a et 142a s'échappent à nouveau. La pièce des quarts 136 n'est alors plus en appui sur le deuxième bras 142 et bascule sous l'effet du ressort 108 jusqu'à ce que l'épaulement 136g s'appuie sur la creusure 107. De la sorte, les dents des quarts inutiles à la sonnerie (la troisième dent dans l'exemple) s'effacent et ne croisent pas les levées 36 lors de la suite du mouvement des pièces de sonnerie.In the example shown on the figure 6 (40 minutes), when two quarters sounded, all the ringing parts continuing their movement, the corners 136a and 142a escape again. The part of the quarters 136 is then no longer supported on the second arm 142 and tilts under the effect of spring 108 until the shoulder 136g relies on the recess 107. In this way, the teeth of the quarters useless to the ring (the third tooth in the example) are erased and do not cross the lifts 36 during the subsequent movement of the ringing pieces.

La pièce 100 et la pièce des quarts 136 poursuivent leur rotation, toujours sous l'action de la roue entraîneuse 22. Les dents du secteur des minutes 102 croisent alors le bec 38b de la levée 36b et le poussent successivement pour actionner le marteau 34b qui frappe le timbre 20b pour sonner les minutes.The piece 100 and the quarter piece 136 continue their rotation, still under the action of the driving wheel 22. The teeth of the minutes sector 102 then cross the spout 38b of the lift 36b and push it successively to actuate the hammer 34b which hit the 20b stamp to ring the minutes.

La sonnerie des minutes continue jusqu'à ce que le palpeur des minutes 128a vienne prendre son information sur le limaçon des minutes 24, ce qui stoppe le mouvement de la gâchette 122 (figure 5). Le nombre de dents ayant alors croisé la levée 36b correspond au nombre de minutes à sonner (10 dans l'exemple). La pièce de sonnerie 100 est toujours mue par la roue entraîneuse 22. Grâce à l'ouverture oblongue, les pièces 100 et 122 ont alors un mouvement relatif qui actionne la bascule 112 et provoque le débrayage de la roue 22.The minute buzzer continues until the minute probe 128a comes to take its information on the minutes snail 24, which stops the trigger movement 122 ( figure 5 ). The number of teeth then crossed the lift 36b corresponds to the number of minutes to ring (10 in the example). The striking piece 100 is always moved by the driving wheel 22. Thanks to the oblong opening, the parts 100 and 122 then have a relative movement which actuates the lever 112 and causes the wheel 22 to disengage.

L'ensemble des pièces de sonnerie n'étant alors plus entraîné, le ressort 120 ramène les pièces de sonnerie et des quarts dans la position de repos décrite ci-dessus. La roue de comptage 202 permet que le barillet 10 reste libéré pendant la durée du cycle du mécanisme de répétition.All the ringing parts are then no longer driven, the spring 120 brings the rings and quarters in the rest position described above. The counting wheel 202 allows the barrel 10 to remain free during the cycle of the repetition mechanism.

Ainsi est proposé un mécanisme de répétition à minutes comportant un nombre réduit de pièces. Il est, de ce fait, plus facile à réaliser et à régler, particulièrement au niveau de la sonnerie des quarts.Thus is proposed a minute repeater mechanism comprising a reduced number of parts. As a result, it is easier to set up and adjust, especially at the quarter ring level.

En variante, les trois dents du secteur des quarts peuvent actionner des levées non coaxiales, mais dont les centres de rotation sont très proches. Il suffit, en effet, que la distance entre les deux becs soit inférieure à la distance séparant deux dents consécutives.As a variant, the three teeth of the quarter sector can actuate non-coaxial lifts, but whose centers of rotation are very close. It suffices, indeed, that the distance between the two nozzles is less than the distance separating two consecutive teeth.

Claims (10)

  1. A striking piece designed to be integrated into a minute repeater mechanism comprising a rack (100b) that successively has, along one of its edges, a toothed hour sector (106), a free toothing space (104), characterized in that said rack (100b) further comprises, along said edge, a toothed minute sector (102) following said free space.
  2. The striking piece according to claim 1, characterized in that the toothed minute (102) and hour (106) sectors are situated in different planes.
  3. The striking piece according to one of claims 1 and 2, characterized in that it bears a trigger (122), including first (128) and second (130) arms each provided with a feeler-spindle (128a, 130a).
  4. The striking piece according to one of claims 1 to 3, characterized in that it bears a quarter piece (136) including a toothed quarter sector (136d) and mounted pivotably such that the toothed quarter sector can appear exclusively in said free toothing space (104).
  5. A timepiece comprising a minute repeater mechanism equipped with:
    • an energy source (10) powering that mechanism,
    • a control organ (16) to actuate that mechanism,
    • a counting organ to obtain information on the current time, comprising:
    - an hour snail (28), an hour feeler-spindle (128a),
    - a quarter snail (26), a quarter feeler-spindle (142b), and
    - a minute snail (24), a minute feeler-spindle (130a),
    • a toothed power sector (106), a toothed quarter sector (136d) and a toothed minute sector (102) that are mounted rotatably and the movement of which is determined by said counting organ, and
    • means for emitting a sound, comprising:
    - two gathering pallets (36) that can be actuated by one and/or the other of the toothed sectors,
    - two hammers (34) moved by the gathering pallets, and
    - two gongs (32) that said hammers strike to emit a sound,
    characterized in that said toothed hour (106) and minute (102) sectors are situated on a striking piece (100) as defined in one of claims 1 to 4.
  6. The timepiece according to claim 5, characterized in that the toothed hour (106) and minute (102) sectors are positioned, in the direction of the thickness of the mechanism, in the plane of one and the other of the gathering pallets (36a, 36b), respectively.
  7. The timepiece according to one of claims 5 and 6 when they depend on claim 3, wherein the energy source is a barrel (10), the energy of which is transmitted to said mechanism by means of a carrier wheel (22), characterized in that said trigger (122) and said striking piece (100) pivot at the center of said wheel, at least one of said first (128) and second (130) arms of the trigger being oriented concentrically to the carrier wheel (22), and in that the trigger is coupled with play to the striking piece, said play being able to create a relative movement of said trigger with respect to said striking piece which, by means of a lever secured to said striking piece and moved by said trigger, couples or uncouples the striking piece with respect to said carrier wheel.
  8. The timepiece according to one of claims 5 to 7 when they depend on claim 4, characterized in that said striking piece (100) includes a recess (107), and in that the quarter piece (136) is provided with a shoulder (136g) and a pressure surface (136e) with which a first positioning spring (108) cooperates, exerting a force tending to cause said shoulder (136g) to abut on said recess (107).
  9. The timepiece according to claim 8, characterized in that a second spring (120) exerts a force on the striking piece (100) tending to rotate it and in that said positioning spring (108) and said second spring (120) bring said quarter piece (136) against a banking element (144, 138) that keeps said mechanism in its idle position.
  10. The timepiece according to one of claims 5 to 9, characterized in that said gathering pallets are arranged coaxially, and in that said toothed quarter sector (136d) encompasses, in its thickness, the beaks (38) of the two gathering pallets (36).
EP07113157.7A 2005-03-31 2005-03-31 Timepiece comprising a minute repeater mechanism Ceased EP1852755B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP07113157.7A EP1852755B1 (en) 2005-03-31 2005-03-31 Timepiece comprising a minute repeater mechanism

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP07113157.7A EP1852755B1 (en) 2005-03-31 2005-03-31 Timepiece comprising a minute repeater mechanism
EP05102567A EP1708050B1 (en) 2005-03-31 2005-03-31 Timepiece with a minute-repeater mechanism

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EP05102567A Division EP1708050B1 (en) 2005-03-31 2005-03-31 Timepiece with a minute-repeater mechanism

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EP1852755A2 EP1852755A2 (en) 2007-11-07
EP1852755A3 EP1852755A3 (en) 2008-03-19
EP1852755B1 true EP1852755B1 (en) 2013-12-25

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EP07113157.7A Ceased EP1852755B1 (en) 2005-03-31 2005-03-31 Timepiece comprising a minute repeater mechanism

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US (1) US7773463B2 (en)
EP (2) EP1708050B1 (en)
JP (1) JP5203182B2 (en)
AT (1) ATE395639T1 (en)
DE (1) DE602005006733D1 (en)
ES (1) ES2307111T3 (en)
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WO (1) WO2006103267A1 (en)

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Also Published As

Publication number Publication date
EP1708050A1 (en) 2006-10-04
RU2007140326A (en) 2009-05-10
WO2006103267A1 (en) 2006-10-05
US20080192585A1 (en) 2008-08-14
US7773463B2 (en) 2010-08-10
DE602005006733D1 (en) 2008-06-26
JP2008534941A (en) 2008-08-28
HK1097610A1 (en) 2007-06-29
JP5203182B2 (en) 2013-06-05
EP1708050B1 (en) 2008-05-14
ES2307111T3 (en) 2008-11-16
EP1852755A3 (en) 2008-03-19
ATE395639T1 (en) 2008-05-15
EP1852755A2 (en) 2007-11-07

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