EP0451334B1 - Montre à répétition - Google Patents

Montre à répétition Download PDF

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Publication number
EP0451334B1
EP0451334B1 EP90122013A EP90122013A EP0451334B1 EP 0451334 B1 EP0451334 B1 EP 0451334B1 EP 90122013 A EP90122013 A EP 90122013A EP 90122013 A EP90122013 A EP 90122013A EP 0451334 B1 EP0451334 B1 EP 0451334B1
Authority
EP
European Patent Office
Prior art keywords
arbor
rack
watch according
hour
repeating watch
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.)
Expired - Lifetime
Application number
EP90122013A
Other languages
German (de)
English (en)
Other versions
EP0451334A1 (fr
Inventor
Giulio Papi
Dominique Renaud
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.)
IWC International Watch Co AG
Original Assignee
IWC International Watch Co AG
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 IWC International Watch Co AG filed Critical IWC International Watch Co AG
Publication of EP0451334A1 publication Critical patent/EP0451334A1/fr
Application granted granted Critical
Publication of EP0451334B1 publication Critical patent/EP0451334B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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

Definitions

  • the invention relates to a repeater watch with a manually tensionable spring, by the relaxation of which an axis can be rotatably driven from a tensioned position into a rest position, with a first rake rotatable from the axis for actuating a first striking mechanism, and with one of the first striking mechanism Drivable first hammer, from which a first gong can be struck, the first rake in a first part of the relaxation movement path of the axis from the clamping position to the rest position and in the second part of this relaxation movement path a second rake for actuating a second percussion mechanism from the Axis can be rotatably driven, and a second hammer mechanism can be actuated by the second rake, by means of which a second hammer can be driven to strike a second gong and the rotary drive can be engaged between the second rake and the axis by a second coupling device.
  • a repeater watch is known from CH-A-9962, in which the hourly rake is actuated and the hourly strikes are triggered by manual tensioning of the spring of a repeater mechanism. By then releasing the spring, the repeater unit triggers the quarter-hour and minute strikes. The time interval between the triggering of the hourly strikes and the start of the quarterly strikes depends on the release of the tension lever by the operator.
  • the object of the invention is therefore to provide a repeater clock of the type mentioned at the outset, which is designed in such a way that different tones can be struck, its construction being simple and requiring little installation space, with the repetition mechanism successively indicating the hours, the quarter hours and the minutes are struck and the beginning of the striking of the quarter hours and the minutes always occurs at exactly the same time after the start of the striking of the hours.
  • This object is achieved in that the rotary drive between the first rake and the axle at the end of the first part of the relaxation movement path of the axis can be uncoupled by a first coupling device and the rotary drive between the second rake and the axle at the beginning of the second part of the relaxation Movement path of the axis can be engaged by the second coupling device.
  • This design makes it possible with extremely small installation space to let the hours strike first by the first striking mechanism, while the second striking mechanism then z. B. the minutes are struck.
  • the drive for both striking mechanisms comes from the axis together.
  • the rotary drive between the first rake and the axis preferably has a component which is freely rotatably mounted on the axis and drives the first rake and which can be connected to the axis in a rotationally fixed manner by the first coupling device.
  • a simply constructed and easy-to-operate coupling is formed in that the first coupling device has a detent which can be latched radially into a recess on the cylindrical lateral surface of the axis, producing a non-rotatable connection, and radially at the end of the second part of the relaxation movement path of the axis
  • Recess is movably drivable, on the first component, which is freely rotatable on the axis, a decoupling lever which is pivotable about a pivot axis parallel to the axis is mounted, on one free end of which the catch is arranged and which has an approximately radially outwardly projecting decoupling finger, which can be struck at the end of the first part of the relaxation movement path and its catch can be pivoted out of the recess in the axis.
  • the first component of the is a disc-shaped first rake, which has teeth on its radially circumferential edge region, through which a first creator of the first striking mechanism can be pivotably driven.
  • the rotary drive can have, between the second rake and the axle, a component which is freely rotatably mounted on the axle and drives the second rake and which can be connected to the axle in a rotationally fixed manner by the second coupling device.
  • a safe engagement of the second coupling device at exactly the same time when the repeater works is achieved in that the second coupling device is a clamping directional lock, by means of which a rotationally fixed connection between the axle and the second component during the relaxation movement path from the beginning of its second part to the rest position can be produced.
  • the lock of the clamping directional lock can be a rolling element in a simple manner.
  • the rolling element is arranged in a locking recess which is designed to be radially open to the outside in the region of the cylindrical lateral surface of the axis covered by the second component and whose depth increases in the relaxation direction of movement of the axis from a slightly smaller dimension than the diameter of the rolling element , the axis and the second component are safely coupled in one direction of rotation of the axis at the desired time and the axis is also freely rotated in the other direction of rotation.
  • the locking recess can be formed on a circular disk-shaped, coaxially rotatably arranged driver, the cylindrical outer surface of which forms a slide bearing on which the second component is rotatably supported with a central bore, on the latter cylindrical inner wall of the rolling element axis and second component can be brought into contact in a rotationally fixed connection.
  • the rolling element can be spaced in the first part of the relaxation movement path of the axis at a distance from the cylindrical inner wall of the central one Be borehole.
  • the spacing guide can have a slideway that extends concentrically to the axis along the first part of the relaxation movement path of the axis.
  • the rolling element is arranged with an end projecting parallel to the axis from the locking recess on a sliding piece which is mounted so as to be displaceable in a plane perpendicular to the axis and whose displacement is limited radially outwards in the region of the first part of the relaxation movement path of the axis by the slideway is along which a sliding surface of the slider is slidably guided, so after leaving the first part of the relaxation movement path, the slider with the rolling element can move radially outwards and the rolling element can move into the area of the locking recess in which it is between the cylindrical inner wall the bore of the second component and the bottom of the locking recess is clamped and these two parts are coupled in a rotationally fixed manner. Contribution to the smooth operation is made if the sliding surface of the sliding piece has a curvature corresponding to the curvature of the slideway.
  • the second component driving the second rake can be a drive gearwheel which engages in a tooth sector of the second rake which can be pivoted about a pivot axis.
  • the second rake preferably has a row of teeth arranged concentrically to the swivel axis, through the teeth of a second creator of the second striking mechanism is pivotally driven.
  • the repeater watch shown has an elevator lever 1, which is activated by manual actuation of its actuating cam 2 can be pivoted counterclockwise about a pivot axis 3 until it comes into contact with an hourly scale 5 with a stop pin 4.
  • the hourly scale 5 is rotatably driven about an axis 6 with one revolution per twelve hours and has twelve stages on its radially circumferential circumferential surface, which are distributed evenly and are arranged in a spiral, increasing in height.
  • the elevator lever 1 can thus be pivoted more or less about its pivot axis 3.
  • an elevator drive wheel 8 which is arranged in a rotationally fixed manner on an axis 9, can be rotatably driven via a tooth sector 7 arranged concentrically to the pivot axis 3 on the elevator lever 1.
  • a tension spring 10 which spirally surrounds the axis 9 is fixed at its inner end to the axis 9, while its outer end is fixedly arranged on a rotationally fixed barrel concentrically surrounding the axis 9.
  • a circular disk-shaped hour / quarter hour rake 11 is also freely rotatably mounted on the axis 9 and can be connected in a rotationally fixed manner to the axis by means of a first coupling device.
  • the hour / quarter hour rake 11 has a row of twelve hour teeth 12, a first row of three quarter hour teeth 13 and a second row of three quarter hour teeth 14 on its radially circumferential edge in a clockwise direction Hour teeth 12 and through the quarter hour teeth 13 an hour creator 15 and through the quarter hour teeth 14 a quarter hour creator 16 can be pivoted.
  • This rotary movement of the hour / quarter hour rake 11 takes place after the tensioning of the tension spring 10 has been carried out by manually pivoting the elevator lever 1, by means of the tension spring 10 which relaxes again.
  • an hour hammer lever 19 carrying an hour hammer 18 at its free end can be pivotably driven via a pivotable intermediate lever 17 in such a way that the hour hammer 18 is moved away from an hourly tone spring 21 against the force of the spring 20.
  • the hour hammer 18 is then moved by the spring 20 with momentum against the hour tone spring 21 and a tone is generated by striking.
  • the spring 25 moves the quarter-hour hammer 24 with momentum against the quarter-hour tone spring 26 and generates a tone by striking which has a different pitch than the hour spring 21.
  • the hour teeth 12 and the quarter hour teeth 13 have the same radial extension compared to the quarter hour teeth 14.
  • the hour creator 15 can thus be pivotally driven both by the hour teeth 12 and by the quarter hour teeth 13, while the quarter hour creator 16 arranged at a somewhat greater radial distance from the hour / quarter hour rake 11 can only be driven by the quarter hour teeth 14.
  • the distance from the hour creator 15 and quarter hour creator 16 in the circumferential direction is such that double strikes are carried out when the quarter hours are struck.
  • the quarter-hour scoop 16 is pivoted by a quarter-hour tooth 14 and, shortly thereafter, the hour-scoop 15 is pivoted by a quarter-hour tooth 13.
  • the number of hourly strikes is determined by the angle of rotation by which the axis 9 is rotated by the pivoting movement of the elevator lever 1 and thus by the position of the hourly scale 5.
  • the first coupling device and a pivotable quarter distributor 27 determine the pivot angle at which the quarter-hour teeth 13 and 14 can drive the hour creator 15 and the quarter hour creator 16, respectively.
  • the first coupling device has a catch 28 which is arranged on a decoupling lever 29 which is pivotably mounted on the hour / quarter hour rake 11 about a pivot axis 30 parallel to the axis 9 in such a way that the catch 28 is approximately radial under the action of a spring 31 can engage a recess 31 of a driving disk 32 which is open radially outwards and can produce a rotationally fixed connection.
  • the drive plate 32 is coaxially fixed to the axis 9, so that a non-rotatable connection between hour / quarter hour rake 11 and axis 9 can be produced by means of the catch 28 which engages in the recess 31.
  • the decoupler lever 29 has an approximately radially protruding decoupler finger 33, which rotates counterclockwise when the hour / quarter hour calculator 11 is rotated into a hook recess after a certain rotational path adjoining the rotational path determining the hourly shocks 34 of the quarter distributor 27 can intervene.
  • the quarter distributor 27 can then only be pivoted up to the abutment against a stop 35 and ends the non-rotatable coupling between the axis 9 and hours / quarter hour rake 11 by pivoting the catch 28 out of the recess 31 by the decoupler fingers 33 held by the quarter distributor 27 becomes.
  • the quarter distributor 27 has four hook recesses 34 arranged approximately one after the other in the circumferential direction of the hour / quarter hour calculator 11, one hook recess 34 in each case being assigned to a quarter of an hour.
  • the counterclockwise first hook recess 34 corresponds to the first quarter of an hour and the counterclockwise last hook recess 34 corresponds to the last quarter of an hour.
  • a hook recess 34 comes into the circumferential area of the decoupler finger 33 so that it can hook there.
  • the pivot position of the quarter distributor 27 is determined by a button 36, which is arranged on a probe arm 37 of the quarter distributor 27 and scans a quarter-hour scale 38.
  • the quarter-hour scale 38 is rotatably driven about an axis 39 by the clockwork at one revolution per three hours and has three graduations 40 each having four levels distributed evenly around its circumference.
  • the quarter distributor 27 can pivot more or less and bring the hook recess 34 associated with the quarter hour stage that has been scanned into the area of the decoupler finger 33.
  • a circular disk-shaped driver 42 is arranged in a rotationally fixed manner, the radially rotating one cylindrical outer surface forms a slide bearing on which a drive gear 41 with a central bore 47 is freely rotatable.
  • the driver 42 has on its cylindrical outer surface a radially outwardly open locking recess 43.
  • This locking recess 43 is designed step-like with different depths, with the first step 44 in the counterclockwise direction having a radially outwardly slightly increasing depth in the clockwise direction.
  • the depth of the second step 45 is significantly greater than that of the first step, the second step 45 forming an approximately circular trough.
  • a roller-like rolling element 46 projects axially into the locking recess 43 axially to the axis 9.
  • the diameter of the rolling element 46 corresponds to the shape of the trough of the second step 45 and is slightly larger than the depth of the first step 44.
  • the rolling element 46 is with its end projecting upwards out of the locking recess 43 in a bore 48 of a disc-like slider 49 is arranged, which is slidably mounted on the surface of the driver 42 in the plane perpendicular to the axis 9.
  • the slider 49 On its radially outward side, the slider 49 has a circular sector-like sliding surface 50 which can slide along a corresponding slideway 51 of a spacer guide 52.
  • the slideway 51 extends concentrically to the axis 9 by a region which corresponds to the third part of the angle of rotation about which the axis 9 is rotated by the pivoting movement of the elevator lever 1.
  • the hour / quarter hour calculator 11 is driven and thus the hours and the quarter hours are struck.
  • the drive gear 41 engages in a toothed sector 53 of a minute rake 54 and pivots it about a pivot axis 55.
  • the minute rake 54 is made of a Position pivotable, which is determined by a button 56, which comes to rest on a minute scale 57.
  • the minute series 57 has a row of teeth 58 with fourteen tooth gaps, each tooth gap representing a minute position.
  • a row of teeth with fourteen minute teeth 60 is arranged concentrically to the pivot axis 55 on the minute rake 54, by means of which a minute scraper 61 can be pivotably driven.
  • the minute scraper 61 is pivotable about the same axis as the quarter hour scoop 16 and also drives the intermediate lever 22, the quarter hour hammer lever 23 and the quarter hour lever 24.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electromechanical Clocks (AREA)
  • Toys (AREA)
  • Measurement Of Unknown Time Intervals (AREA)

Claims (16)

  1. Montre à répétition comportant un ressort (10) susceptible d'être bandé manuellement, dont la détente permet l'entraînement en rotation d'un axe (9) pour le faire passer d'une position de tension à une position de repos, cette montre comportant un premier râteau (11) susceptible d'être entraîné en rotation par l'axe (9) en vue de l'actionnement d'un premier mécanisme de frappe de sonnerie, ainsi qu'un premier marteau (18) qui est susceptible d'être entraîné par le premier mécanisme de sonnerie et grâce auquel un premier ressort de sonnerie (21) peut être frappé, le premier râteau (11) pouvant être entraîné en rotation par l'axe (9) dans une première partie du déplacement de détente de l'axe (9) de la position bandée à la position de repos, et un second râteau (54) destiné à l'actionnement d'un deuxième mécanisme de frappe de sonnerie pouvant l'être dans la deuxième partie de ce déplacement de détente, et un deuxième mécanisme de frappe de sonnerie étant susceptible d'être actionné par le deuxième râteau (54), mécanisme grâce auquel un deuxième marteau (24) peut être entraîné en vue de frapper un deuxième ressort de sonnerie (26), le dispositif d'entraînement en rotation entre le deuxième râteau (54) et l'axe (9) pouvant être mis en accouplement au moyen d'un second dispositif d'accouplement, montre caractérisée en ce que le dispositif d'entraînement en rotation entre le premier râteau (11) et l'axe (9) peut être désaccouplé à la fin de la première partie du déplacement de détente de l'axe (9) au moyen d'un premier dispositif d'accouplement, et en ce que le dispositif d'entraînement en rotation entre le deuxième râteau (54) et l'axe (9) peut être accouplé, au début de la deuxième partie du déplacement de détente de l'axe (9), au moyen du deuxième dispositif d'accouplement.
  2. Montre à répétition selon la revendication 1, caractérisée en ce que le dispositif d'entraînement en rotation entre le premier râteau (11) et l'axe (9) comporte une première pièce constitutive montée de façon à tourner librement sur l'axe (9), et entraînant le premier râteau (11), laquelle pièce peut être reliée à l'axe (9), de façon solidaire en rotation, au moyen du premier dispositif d'accouplement.
  3. Montre à répétition selon la revendication 2, caractérisée en ce que le premier dispositif d'accouplement présente un cliquet (28), qui peut s'encliqueter sensiblement radialement dans un évidement (31) situé sur la surface extérieure cylindrique de l'axe en créant une liaison fixe en rotation et qui peut être entraîné en pouvant être déplacé radialement hors de l'évidement (31), à la fin de la première partie du déplacement de détente de l'axe (9).
  4. Montre à répétition selon la revendication 3, caractérisée en ce que, sur la première pièce constitutive, montée de façon à tourner librement sur l'axe (9), est monté un levier de désaccouplement (29) susceptible de pivoter sur un axe de pivotement (10) parallèle à l'axe, à l'une des extrémités libres duquel est disposé le cliquet (28) et lequel est doté d'un doigt de désaccouplement (33) faisant saillie sensiblement radialement vers l'extérieur, qui peut venir en butée sur une butée à la fin de la première partie du déplacement de détente et dont le cliquet (28) peut être mis en pivotement en étant déplacé hors de l'évidement (31) de l'axe.
  5. Montre à répétition selon la revendication 2, caractérisée en ce que la première pièce constitutive, montée de façon à tourner librement sur l'axe (9), est le premier râteau (11), en forme de disque, qui présente, sur sa zone de bord qui l'entoure radialement, des dents (12, 13, 14) au moyen desquelles un premier générateur (15) du premier dispositif de frappe de sonnerie peut être entraîné en pivotement.
  6. Montre à répétition selon l'une des revendications précédentes, caractérisée en ce que le dispositif d'entraînement en rotation entre le deuxième râteau (54) et l'axe (9) comprend une deuxième pièce constitutive entraînant le deuxième râteau (54) et montée de façon à tourner librement sur l'axe (9), laquelle deuxième pièce constitutive peut être solidarisée en rotation avec l'axe (9), au moyen du second dispositif d'accouplement.
  7. Montre à répétition selon la revendication 6, caractérisée en ce que le deuxième dispositif d'accouplement est un dispositif de blocage orienté, permettant de réaliser une solidarisation en rotation entre l'axe (9) et la deuxième pièce constitutive, pendant le déplacement de détente depuis le début de sa deuxième partie jusqu'à la position de repos.
  8. Montre à répétition selon la revendication 7, caractérisée en ce que l'organe de blocage du dispositif de blocage orienté est un corps roulant (46).
  9. Montre à répétition selon la revendication 8, caractérisée en ce que le corps roulant (46) est disposé dans un évidement de blocage (43), qui est ouvert radialement vers l'extérieur dans la zone de la surface cylindrique extérieure de l'axe (9) recouverte par la deuxième pièce constitutive et dont la profondeur augmente, dans la direction de déplacement de détente de l'axe (9), à partir d'une dimension légèrement plus faible que le diamètre du corps roulant (46).
  10. Montre à répétition selon la revendication 9, caractérisée en ce que l'évidement de blocage (43) est conformé sur un élément d'entraînement (42) en forme de disque, disposé coaxialement sur l'axe (9) dont il est solidaire en rotation, et dont la surface cylindrique extérieure forme un palier lisse sur lequel la deuxième pièce constitutive est montée de façon rotative, au moyen d'un alésage central (47) et sur la paroi cylindrique intérieure de laquelle le corps cylindrique (46) peut être amené en appui en créant une liaison de solidarisation en rotation entre l'axe (9) et la deuxième pièce constitutive.
  11. Montre à répétition selon la revendication 10, caractérisée en ce que le corps roulant (46) est maintenu à l'écart de la paroi cylindrique intérieure de l'alésage central (47) au cours de la première partie du déplacement de détente de l'axe, au moyen d'un dispositif (52) de guidage de maintien à l'écart.
  12. Montre à répétition selon la revendication 11, caractérisée en ce que le dispositif (52) de guidage de maintien à l'écart présente une piste de glissement (51), qui s'étend concentriquement à l'axe (9) le long de la première partie du chemin de déplacement de l'axe (9).
  13. Montre à répétition selon la revendication 12, caractérisée en ce que le corps roulant (46) est disposé sur une pièce de glissement (49), une de ses extrémités dépassant de l'évidement de blocage (43) parallèlement à l'axe, ladite pièce de glissement étant montée de façon à pouvoir être déplacée dans un plan perpendiculaire à l'axe (9) et son déplacement étant limité radialement vers l'extérieur,dans la zone de la première partie du déplacement de détente de l'axe (9), par la piste de glissement (51), le long de laquelle une surface de glissement (50) de la pièce de glissement (49) est guidée dans son glissement.
  14. Montre à répétition selon la revendication 13, caractérisée en ce que la surface de glissement (50) de la pièce de glissement (49) a une courbure qui correspond à la courbure de la pièce de glissement (51).
  15. Montre à répétition selon l'une des revendications précédentes, caractérisée en ce que la deuxième pièce constitutive entraînant le deuxième râteau (54) est une roue dentée d'entraînement (41), qui engrène dans un secteur denté (53) du deuxième râteau (54) susceptible de pivoter sur un axe de pivotement (55).
  16. Montre à répétition selon la revendication 15, caractérisée en ce que le deuxième râteau (54) comporte une série de dents disposée concentriquement à l'axe de pivotement (55), grâce aux dents (60) duquel un deuxième générateur (61) du deuxième mécanisme de frappe de sonnerie peut être entraîné en pivotement.
EP90122013A 1990-04-13 1990-11-17 Montre à répétition Expired - Lifetime EP0451334B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4012058 1990-04-13
DE4012058A DE4012058A1 (de) 1990-04-13 1990-04-13 Repetieruhr

Publications (2)

Publication Number Publication Date
EP0451334A1 EP0451334A1 (fr) 1991-10-16
EP0451334B1 true EP0451334B1 (fr) 1994-03-16

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EP90122013A Expired - Lifetime EP0451334B1 (fr) 1990-04-13 1990-11-17 Montre à répétition

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DE (2) DE4012058A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2498143B1 (fr) 2011-03-08 2018-05-02 Montres Breguet SA Mécanisme d'isolement entre mécanismes horlogers de déclenchement de différents signaux sonores
EP3159753B1 (fr) * 2015-10-21 2018-10-10 Blancpain SA. Temporisateur de rappel de réveil réglable pour montre mécanique

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH7905A (fr) * 1894-01-27 1894-07-31 Le Coultre & Cie Mécanisme de répétition à minutes simplifié et monté sur un mouvement de montre simple
CH9962A (fr) * 1895-03-29 1895-10-31 Aubert George Mécanisme réglant la sonnerie des quarts et minutes dans les montres à répétition de façon à supprimer les silences de longueur variable qui séparent la sonnerie des heures de celle des quarts ou minutes
CH81475A (de) * 1918-11-20 1919-06-16 Hermann Scherzinger Repetiervorrichtung an Uhren
CH344955A (fr) * 1958-10-17 1960-02-29 D Horlogerie Angelus Stolz Fre Montre-bracelet à répétition

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Publication number Publication date
EP0451334A1 (fr) 1991-10-16
DE4012058A1 (de) 1991-10-17
DE59005026D1 (de) 1994-04-28

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