EP0931282B1 - Dispositif pour ajuster l'aiguille des minutes d'une montre comportant au moins une aiguille des minutes et une trotteuse - Google Patents

Dispositif pour ajuster l'aiguille des minutes d'une montre comportant au moins une aiguille des minutes et une trotteuse Download PDF

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Publication number
EP0931282B1
EP0931282B1 EP97942903A EP97942903A EP0931282B1 EP 0931282 B1 EP0931282 B1 EP 0931282B1 EP 97942903 A EP97942903 A EP 97942903A EP 97942903 A EP97942903 A EP 97942903A EP 0931282 B1 EP0931282 B1 EP 0931282B1
Authority
EP
European Patent Office
Prior art keywords
lever
seconds
setting
blocking
stem
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
EP97942903A
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German (de)
English (en)
Other versions
EP0931282A1 (fr
Inventor
Helmut Geyer
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.)
Lange Uhren GmbH
Original Assignee
Lange Uhren GmbH
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
Priority claimed from DE19725794A external-priority patent/DE19725794A1/de
Application filed by Lange Uhren GmbH filed Critical Lange Uhren GmbH
Publication of EP0931282A1 publication Critical patent/EP0931282A1/fr
Application granted granted Critical
Publication of EP0931282B1 publication Critical patent/EP0931282B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G04—HOROLOGY
    • G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
    • G04B27/00—Mechanical devices for setting the time indicating means
    • G04B27/02—Mechanical devices for setting the time indicating means by making use of the winding means
    • G04B27/04—Mechanical devices for setting the time indicating means by making use of the winding means with clutch wheel

Definitions

  • the invention relates to a device for setting the minute hand of a watch having at least minute and second hands, with an actuating shaft that can be moved by axial movement from a normal position into an actuating position, wherein when the actuating shaft is moved from the normal position into the actuating position, a zero actuator of The second hand can be driven to its zero position and the second wave carrying the second hand can be driven by the clockwork of the clock via a second indicator drive (see CH-A-632 373).
  • the zero actuator is a cardiac zero drive which, depending on the position of the heart curve, brings the second hand clockwise or counterclockwise to the zero position. Due to manufacturing tolerances, there is always play in the gear train leading to the second display gear, which must be overcome when the second hand is reset to the counterclockwise direction. If the second hand is then driven again in normal operation, the play in the gear train must first be overcome again before the second hand is moved. This leads to a delay in the start of the second hand and thus to an incorrect display of one to two seconds.
  • the object of the invention is therefore to provide a device of the type mentioned by which a correct start of the second hand is ensured after an adjustment process.
  • the second display gear has a blocking device which can be actuated by the movement of the setting shaft in the direction of the setting position such that the second display gear is blocked leading to the movement of the second hand in the zero position.
  • the second display gear is blocked, so that it always remains free of play in the normal drive direction and ensures correct start of the second hand after an adjustment process.
  • the adjusting shaft can only be used to reset the second hand.
  • the setting shaft is a minute setting shaft of the clock and the setting position is the minute setting position in which the minute hand can be manually moved by turning the setting shaft
  • the setting shaft fulfills both the function of triggering the zero setting drive and the function for actuating the minute position.
  • Simply moving the adjusting shaft to its minute setting position automatically causes the second hand to be reset.
  • the second shaft can be non-positively coupled to the clockwork of the clock.
  • a preloaded dome spring can be arranged in a simple design between the second shaft and a second display drive of the clockwork, which is frictionally engaged in at least one of the parts of the second shaft and the second display drive.
  • a space-saving design is achieved in that the second display gear is freely rotatably mounted on the second shaft, the dome spring being able to be arranged axially between the second shaft and the second display gear without significant space requirement.
  • the dome spring is a spring having one or more radially directed spring arms, one spring arm end of which is arranged on the second shaft and the second spring arm end of which is on the front side Second display gear is supported, wherein the second spring arm end can be supported on a radially directed flange-like extension of the gear.
  • the blocking device can have a blocking lever which can be pivoted about a pivot axis, by means of which a movable drive part of the second display drive can be acted upon by force and / or form and / or friction.
  • the movable drive part can be the flange-like extension of the second display gear, the radially circumferential surface of which can be acted upon by the blocking lever.
  • a particularly reliable blockage of the second display mechanism is achieved in that the radially circumferential circumferential surface has a radially circumferential approximately V-shaped groove into which the blocking lever, which can be pivoted about the pivot axis parallel to the axis of rotation of the second display mechanism, can be pivoted with an approximately corresponding V-shaped blocking region.
  • the zero actuator is a cam disk drive, the cam disk of which is firmly arranged on the second shaft carrying the second hand and can be driven to move from a zero adjustment lever into the zero position when the actuating shaft is moved in the direction of the actuating position, for which purpose the cam disk drive is preferably one Heart curve zero actuator is. If the cam can be locked in the zero position by the zeroing lever, these components serve not only to move in the zero position but also to hold the second hand in the zero position.
  • the zeroing lever is a lever which acts on the radially circumferential surface of the cam disc about an axis parallel to the second shaft.
  • a simple and space-saving actuator is achieved in that the zero actuator has a swivel lever which can be swiveled about a pivot axis parallel to the second shaft between a normal position and a zero position, which is spring-loaded into its zero position and by means of which the zero lever can be moved against the cam from its normal position spaced from the cam is acted upon.
  • the pivoting lever serves several functions simultaneously.
  • the advance of the blockage of the second display drive before the movement of the second hand into the zero position is achieved in a simple structure in that the pivot axis of the blocking lever and the axis of the zero lever are arranged axially to one another and the blocking engagement direction of the blocking lever and the zeroing direction of the zeroing lever are directed approximately the same.
  • the blocking lever If the blocking lever is acted upon by a blocking spring both in the blocking engagement direction and against the swivel lever in the zero position, the blocking lever can easily be released from the swivel lever after its blocking engagement and this can move further to the cam disk of the cam disk drive.
  • the blocking lever is acted upon by the blocking spring in abutment with a stop of the pivot lever or the zeroing lever, whereby when the blocking lever and pivoting lever are pivoted in the direction of blocking engagement or zeroing direction from the blocking lever, the blocking position before the zero position is reached by the zeroing lever is achieved.
  • the device shown has an actuating shaft 1 which can be moved axially between a normal position (FIG. 1) and an actuating position (FIG. 2).
  • the actuating shaft is coupled in its actuating position in a minute hand drive, not shown, and can adjust the position of a minute hand, also not shown, by rotating the actuating shaft 1 about its axis of rotation.
  • a pin 2 of an angle lever 4 pivotable about an axis 3 engages transversely to the axis of rotation of the actuating shaft 1 in a radially circumferential groove 5 formed in the actuating shaft 1.
  • the angle lever 4 is pivoted about its axis 3 via the pin 2.
  • a catch spring 7 engages a projection 6 arranged on the protruding lever 4 in such a way that depending on its pivot position into its rest position, the lever 4 is acted upon via its release position into a pointer setting position.
  • the snap spring 7 consists of a spring arm 8 which is fixedly arranged at one end and has a tooth 9 at its other end.
  • the angle lever 4 carries on its lever arm opposite the actuating shaft 1 a pin 10 which projects into a groove 11 of a switching disk 12.
  • the switching disk 12 can be pivoted about an axis 13 parallel to the axis 3 of the angle lever 4, the pivoting path being limited by the ends of the groove 11, against which the pin 10 comes to rest.
  • the groove 11 is formed at an equidistant distance from the axis 13.
  • the switching disk 12 has a switching curve 14, which is also equidistant from the axis 13.
  • This switching curve 14, which is designed as an arc section, interacts with an action surface 15 of a pivoting lever 16 which can be pivoted about a pivot axis 17 by the switching curve 14.
  • the loading surface 15 is designed as an incline which is inclined with respect to a radial to the pivot axis 17 of the pivot lever 16.
  • Switching curve 14 and loading surface 15 are inclined at such an angle to one another that self-locking of the two parts sliding on one another is excluded.
  • the pivot lever 16 is permanently spring-loaded in the direction of the switching curve 14 by the free end of a pretensioned spring arm 18 with an acting surface 15 and is biased in the normal position (FIG. 1) with the acting surface 15 on the switching curve 14.
  • a sliding along the switching curve 14 on the loading surface 15 and thus a pivoting of the pivot lever 16 is only possible if the angle lever 4 is pivoted by moving the actuating shaft 1 from the normal position into the actuating position.
  • the switching curve 14 slides under the force of the spring arm 18 on the swivel lever 16 along the actuating surface 15 until it disengages from the actuating surface 15 at the end of its swivel path, since the swiveling capability of the swivel lever 16 is limited.
  • the pivot lever 16 is designed as a two-armed lever, on one lever arm of which the loading surface 15 is arranged.
  • the other lever arm is branched into a zero setting arm 19 and a stopping arm 20.
  • a zeroing lever 22 is arranged in a plane parallel to the zeroing arm 19 about an axis 21 parallel to the pivoting axis 17.
  • the axis 21 is located at one end of the zeroing lever 22, while at the other end of the zeroing lever 22 a positioning surface 23 is arranged in the pivoting direction.
  • the pin 24 is gripped by a fork-shaped end 25 of the zeroing arm 19 and the pivoting position of the zeroing lever 22 is thus determined by the zeroing arm 19.
  • the heart cam 27 By the radial circumferential surface of the heart cam 27 being acted upon by the positioning surface 23, the heart cam 27 is pivoted until the positioning surface 23 has reached the axis of rotation of the heart cam 27 at the radially smallest point. However, this also moves the second hand 29 arranged on the second shaft 28 into its zero position.
  • This pivoting of the second shaft 28 is possible without hindrance, since a second display gear 30 of the clockwork gear train is freely rotatable mounted on the second shaft 28 and is non-positively coupled to the second shaft 28 only by a dome spring 31.
  • the second shaft 28 can thus be rotated by overcoming the frictional engagement of the coupling fields 31 without being blocked by the second display gear 30.
  • the dome spring 31 is designed in the manner of a leaf spring with a central part 33 from which three radially extending spring arms 34 protrude from the plane of the central part 33. With a bore 35 formed in the central part 33, the dome spring 31 is arranged on the second shaft 28.
  • the central part 33 is supported on the heart cam 27, while the free ends of the spring arms 34 are pretensioned on a radially directed, flange-like extension 36 of the second display mechanism 30.
  • the stopping arm 20 of the pivoting lever 16 has at its free end a pin 37 projecting transversely to its pivoting plane.
  • This pin 37 acts against the force of a spring 40 together with a stopping lever 39 which can be pivoted about a pivot axis 38.
  • One free end of the stopping lever 39 is designed as a spring arm 41 and can be moved by pivoting the stopping lever 39 through the spring 40 to bear against the radially circumferential contour of a balance 42. Due to the resilient contact of the spring arm 41 on the balance 42, the latter can be stopped in its rotational movement.
  • the pin 37 of the stop lever 39 is in the normal position of the pivot lever 16 on a stop surface 43 of the stop lever 39 in contact and thus holds the spring arm 41 of the stop lever 39 against the force of the spring 40 at a distance from the balance 42 so that they move freely can.
  • a blocking lever 45 is arranged pivotably about a pivot axis 44 parallel to the axis 21 of the zeroing lever 22.
  • the blocking lever 45 By means of a blocking spring 46, the blocking lever 45 can be moved with its free end against the radially circumferential outer surface of the flange-like extension 36. At this free end, the blocking lever 45 has an approximately V-shaped blocking region 47, with which it can be pivoted into an approximately corresponding V-shaped groove 48, which is formed in a radially circumferential manner on the radially circumferential circumferential surface of the extension 36.
  • the blocking lever 45 supported on the pin 24 follows until it engages with its blocking region 47 in the groove 48 and thus blocks the second display mechanism 30.
  • the zeroing lever 22 is then moved further by the pivoting lever 16 until it comes to rest with its footprint 23 on the heart cam 27 and rotates it until the footprint 23 is at the radially lowest Point of the heart cam 27 rests and so the second hand 29 is in its zero position.
  • the second display mechanism 30 is blocked before the heart cam 27 is adjusted.
  • the setting shaft 1 is first pulled upwards from the normal position shown in FIG. 1 into the setting position shown in FIG. 2 by means of a crown (not shown).
  • the angle lever 4 is pivoted counterclockwise and transmits its movement to the switching disc 12.
  • the angle between the switching curve 14 and the loading surface 15 is such that there is self-locking of the two adjacent parts.
  • the pivot lever 16 there is also a pivoting of the pivot lever 16, so that the angle between the switching curve 14 and the loading surface 15 changes such that self-locking of these two adjacent parts is now excluded.
  • the pivoting lever 16 Under the force of the spring arm 18, the pivoting lever 16 then automatically slides with its actuating surface 15 along the switching curve 14 and pivots so that it moves the zeroing lever 22 with its fork-shaped end 25 via the pin 24 and releases the blocking lever 45 so that it is under the action of the locking spring 46 follows the zero lever 22.
  • the stopping arm 39 of the pivoting lever 16 pivots the stopping lever 39 with its spring arm 41 against the balance 42 and stops it.
  • a minute hand (not shown) and an hour hand (also not shown) are set to the correct time, e.g. of the next time signal.
  • the stopping arm 20 acts on the stop surface 43 of the stopping lever 29, lifts its spring arm 41 from the balance 42 and releases it.
  • the clockwork runs freely and the hands move synchronously.
  • An eccentric 50 on the swivel axis 17 for the swivel lever 16, an eccentric 51 on the stop 26 of the zeroing lever 22 and an eccentric 52 on the swivel axis 44 of the blocking lever 45 serve to adjust the lever paths.
  • the second display gear to be blocked does not necessarily have to be the drive seated on the second shaft, but can also be a gearwheel close to this drive in the gear train leading to this drive. It is optimal, however, if the impulse sitting on the second wave is blocked.

Claims (19)

  1. Dispositif de réglage de l'aiguille des minutes d'une montre comportant au moins une aiguille des minutes et une trotteuse, avec une tige de réglage pouvant passer d'une position normale dans une position de réglage par déplacement axial, dans lequel lors du déplacement de la tige de réglage de la position normale en position de réglage, un entraînement de remise à zéro de la trotteuse peut être commandé pour déplacer celle-ci dans sa position de remise à zéro, et la tige des secondes qui porte la trotteuse peut être commandée par le mécanisme de la montre par l'intermédiaire d'un mécanisme d'affichage des secondes, caractérisé en ce que le mécanisme d'affichage des secondes (30) présente un dispositif de blocage pouvant être actionné par le déplacement de la tige de réglage (1) dans la direction de la position de réglage de manière à ce qu'un blocage du mécanisme d'affichage des secondes (30) ait lieu avant le déplacement de la trotteuse (29) jusqu'à la position de remise à zéro.
  2. Dispositif selon la revendication 1, caractérisé en ce que la tige de réglage (1) est une tige de réglage des minutes de la montre et la position de réglage est la position de réglage des minutes, dans laquelle l'aiguille des minutes peut être commandée par un mouvement manuel par rotation de la tige de réglage (1).
  3. Dispositif selon l'une quelconque des revendications précédentes, caractérisé en ce que la tige des secondes (28) est couplée par adhérence au mécanisme de la montre.
  4. Dispositif selon la revendication 3, caractérisé en ce qu'entre la tige des secondes (28) et un mécanisme d'affichage des secondes (30) du mécanisme de la montre est disposé un ressort d'accouplement (31) précontraint, qui est en appui par adhérence par friction au moins contre la tige des secondes (28) ou le mécanisme d'affichage des secondes (30).
  5. Dispositif selon la revendication 4, caractérisé en ce que le mécanisme d'affichage des secondes (30) est monté libre en rotation sur la tige des secondes (28).
  6. Dispositif selon les revendications 4 et 5, caractérisé en ce que le ressort d'accouplement (31) est disposé axialement entre la tige des secondes (28) et le mécanisme d'affichage des secondes (30).
  7. Dispositif selon la revendication 6, caractérisé en ce que le ressort d'accouplement (31) est un ressort présentant un ou plusieurs bras de ressort orientés radialement, dont une extrémité de bras de ressort est disposée sur la tige des secondes (28) et dont la deuxième extrémité de bras de ressort est en appui frontal contre le mécanisme d'affichage des secondes (30).
  8. Dispositif selon la revendication 7, caractérisé en ce que la deuxième extrémité de bras de ressort est en appui contre un élargissement en forme de bride (36) orienté radialement du mécanisme d'affichage des secondes (30).
  9. Dispositif selon l'une quelconque des revendications précédentes, caractérisé en ce que le dispositif de blocage présente un levier de blocage (45) pouvant pivoter autour d'un axe de pivotement (44), par lequel une partie d'entraînement mobile du mécanisme d'affichage des secondes (32) peut être sollicitée par force et/ou par engagement positif et/ou par adhérence par friction.
  10. Dispositif selon la revendication 9, caractérisé en ce que la partie d'entraînement mobile est l'élargissement en forme de bride (36) du mécanisme d'affichage des secondes (30), dont la surface d'enveloppe périphérique radiale peut être sollicitée par le levier de blocage (45).
  11. Dispositif selon la revendication 10, caractérisé en ce que la surface d'enveloppe périphérique radiale présente une rainure en forme approximative de V (48) formée radialement sur la périphérie, dans laquelle le levier de blocage (45) qui peut pivoter autour de l'axe de pivotement (44) parallèle à l'axe de rotation de la roue dentée peut entrer par pivotement par une zone de blocage (47) en forme de V correspondant approximativement.
  12. Dispositif selon l'une quelconque des revendications précédentes, caractérisé en ce que l'entraînement de remise à zéro est un entraînement par came, dont la came est disposée fixement sur la tige des secondes (28) portant la trotteuse (29) et peut être entraînée par déplacement dans la position de remise à zéro par un levier de remise à zéro (22) lors du mouvement de la tige de réglage (1) dans la direction de la position de réglage.
  13. Dispositif selon la revendication 12, caractérisé en ce que l'entraînement par came est un entraînement de remise à zéro en forme de coeur.
  14. Dispositif selon la revendication 13, caractérisé en ce que le levier de remise à zéro (22) est un levier pouvant pivoter autour d'un axe (21) parallèle à la tige des secondes (28), qui sollicite la surface d'enveloppe périphérique radiale de la came.
  15. Dispositif selon les revendications 12 à 14, caractérisé en ce que l'entraînement de remise à zéro présente un levier de pivotement (16) pouvant pivoter autour d'un axe de pivotement (17) parallèle à la tige des secondes (28) entre une position normale et une position de remise à zéro, lequel peut être sollicité par ressort dans sa position de remise à zéro et peut être sollicité par déplacement de sa position normale espacée de la came contre la came par le levier de remise à zéro (22).
  16. Dispositif selon l'une quelconque des revendications précédentes, caractérisé en ce que le levier de blocage (45) peut être entraîné par pivotement par le levier de pivotement (16).
  17. Dispositif selon l'une quelconque des revendications précédentes, caractérisé en ce que l'axe de pivotement (44) du levier de blocage (45) et l'axe (21) du levier de remise à zéro (22) sont disposés axialement l'un par rapport à l'autre et la direction d'entrée de blocage du levier de blocage (45) et la direction de remise à zéro du levier de remise à zéro (22) sont approximativement orientées dans le même sens.
  18. Dispositif selon la revendication 17, caractérisé en ce que le levier de blocage (45) est sollicité par un ressort de blocage (46) dans la direction d'entrée de blocage ainsi que contre le levier de pivotement (16) en sollicitant celui-ci en sa position de remise à zéro.
  19. Dispositif selon la revendication 18, caractérisé en ce que le levier de blocage (45) est sollicité par le ressort de blocage (46) en appui contre une butée du levier de pivotement (16) ou du levier de remise zéro (22), le pivotement du levier de blocage (45) et du levier de pivotement (16) dans la direction d'entrée de blocage ou la position de remise à zéro du levier de blocage (45) permettant d'atteindre la position de blocage avant la position de remise à zéro par le levier de remise à zéro (22).
EP97942903A 1996-09-18 1997-09-02 Dispositif pour ajuster l'aiguille des minutes d'une montre comportant au moins une aiguille des minutes et une trotteuse Expired - Lifetime EP0931282B1 (fr)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
DE19638013 1996-09-18
DE19638013 1996-09-18
DE19725794 1997-06-18
DE19725794A DE19725794A1 (de) 1996-09-18 1997-06-18 Vorrichtung zum Einstellen des Minutenzeigers einer mindestens Minuten- und Sekundenzeiger aufweisenden Uhr
PCT/EP1997/004766 WO1998012608A1 (fr) 1996-09-18 1997-09-02 Dispositif pour ajuster l'aiguille des minutes d'une montre comportant au moins une aiguille des minutes et une trotteuse

Publications (2)

Publication Number Publication Date
EP0931282A1 EP0931282A1 (fr) 1999-07-28
EP0931282B1 true EP0931282B1 (fr) 2000-04-05

Family

ID=26029487

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97942903A Expired - Lifetime EP0931282B1 (fr) 1996-09-18 1997-09-02 Dispositif pour ajuster l'aiguille des minutes d'une montre comportant au moins une aiguille des minutes et une trotteuse

Country Status (6)

Country Link
US (1) US6252827B1 (fr)
EP (1) EP0931282B1 (fr)
JP (1) JP3535524B2 (fr)
AT (1) ATE191570T1 (fr)
DE (1) DE59701420D1 (fr)
WO (1) WO1998012608A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1840677A1 (fr) * 2006-03-28 2007-10-03 Chopard Manufacture SA Remise à zéro de l'aiguille des secondes dans une pièce d'horlogerie

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2224294B1 (fr) * 2009-02-27 2014-09-10 Glashütter Uhrenbetrieb GmbH Mécanisme de réglage de l'aiguille des minutes d'une montre avec remise à zéro automatique de l'aiguille des secondes
DE102015122629B3 (de) * 2015-12-22 2017-03-16 Lange Uhren Gmbh Einstellvorrichtung einer Uhr

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH249902A (fr) 1945-06-05 1947-07-31 Ltd Leonidas Watch Factory Mouvement d'horlogerie à seconde au centre.
CH284142A (fr) 1950-02-27 1952-07-15 Graef Jean Pierre Montre à seconde au centre.
CH442154A (fr) 1965-01-28 1967-04-15 Centre Electron Horloger Pièce d'horlogerie
US3526088A (en) * 1968-06-21 1970-09-01 Timex Corp Watch setting crown mechanism
JPS5235314B1 (fr) * 1971-07-12 1977-09-08
JPS4871680A (fr) * 1971-12-27 1973-09-27
JPS5451867A (en) 1977-09-30 1979-04-24 Citizen Watch Co Ltd Watch

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1840677A1 (fr) * 2006-03-28 2007-10-03 Chopard Manufacture SA Remise à zéro de l'aiguille des secondes dans une pièce d'horlogerie
US7322741B2 (en) 2006-03-28 2008-01-29 Chopard Manufacture Sa Second hand reset device for a timepiece

Also Published As

Publication number Publication date
EP0931282A1 (fr) 1999-07-28
DE59701420D1 (de) 2000-05-11
WO1998012608A1 (fr) 1998-03-26
US6252827B1 (en) 2001-06-26
JP2000505198A (ja) 2000-04-25
ATE191570T1 (de) 2000-04-15
JP3535524B2 (ja) 2004-06-07

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