EP0927383B1 - Device for adjusting the minutes hand of a watch with at least a minutes and a seconds hand - Google Patents

Device for adjusting the minutes hand of a watch with at least a minutes and a seconds hand Download PDF

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Publication number
EP0927383B1
EP0927383B1 EP97909227A EP97909227A EP0927383B1 EP 0927383 B1 EP0927383 B1 EP 0927383B1 EP 97909227 A EP97909227 A EP 97909227A EP 97909227 A EP97909227 A EP 97909227A EP 0927383 B1 EP0927383 B1 EP 0927383B1
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EP
European Patent Office
Prior art keywords
lever
arrangement according
setting
zero
spring
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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
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EP97909227A
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German (de)
French (fr)
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EP0927383A1 (en
Inventor
Reinhard Meis
Helmut Geyer
Jens Schneider
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Lange Uhren GmbH
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Lange Uhren GmbH
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Priority claimed from DE19725793A external-priority patent/DE19725793A1/en
Application filed by Lange Uhren GmbH filed Critical Lange Uhren GmbH
Publication of EP0927383A1 publication Critical patent/EP0927383A1/en
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Publication of EP0927383B1 publication Critical patent/EP0927383B1/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
    • 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 one with at least minute and second hands Clock, with an actuating shaft which is moved axially from a normal position is movable into an actuating position, with movement of the actuating shaft from the normal position to the set position a zero actuator of the second hand it can be driven to move in its zero position.
  • the object of the invention is therefore a device of the aforementioned To create a way through which a quick and completely reset the second hand to set the minute time he follows.
  • This object is achieved in that by movement the control shaft from the normal position towards the control position towards a spring-powered drive can be triggered by the zero actuator the second hand can be driven to move it to its zero position is. So it is only necessary to adjust the control shaft by a certain one Minimum dimension from the normal position in the direction of the positioning position to move without reaching the setting position completely must to trigger the drive. This drive then takes care of itself for a complete movement of the second hand to the zero position he follows.
  • the adjusting shaft can only be used to reset the second hand serve.
  • control shaft is a minute control shaft of the clock and the control position is Minute setting position, in which the minute hand is turned by turning the setting shaft is manually movable
  • the control shaft fulfills both Function of triggering the zero actuator as well as the function for Actuation of the minute position. Just moving the control shaft into it The minute position automatically causes the second hand to be reset.
  • the second hand is from the Zero actuator can be locked in the zero position so the second hand remains in its zero position until the minute hand setting process has ended and, for example, according to a time signal should be started exactly.
  • To trigger the drive can be simple and space-saving Way of the lever a two-armed, in particular a two-armed angle lever his.
  • the zero actuator is a cam drive, its Cam firmly on the second shaft carrying the second hand arranged and when the actuating shaft moves in the direction of the actuating position thanks to the spring-powered drive from a zero lever the zero position can be driven to move, preferably the cam disk drive is a cardiac zero actuator. Is the cam through? the zero lever can be locked in the zero position so these components serve not only to move to the zero position but also to move to the zero position hold the second hand.
  • a simple and space-saving actuator is achieved in that the zero actuator has a swivel axis parallel to the second shaft between a normal position and a zero position has pivotable pivot lever which is spring-loaded in its zero position is and through which the zero lever from its to the cam spaced normal position movable against the cam is acted upon.
  • the drive can be formed in that a by the lever Switch disc can be pivoted about an axis parallel to the axis of the lever can be driven, the switching disc having a switching curve, by which can be acted upon by a loading surface of the pivoting lever and the swivel lever against its spring action from his Normal position is movable into its zero position.
  • the switching curve can be equidistant from the axis of the switching disc Arc and the area of action one against a radial to Pivot axis of the pivot lever be inclined, being off Because of the small space required, the switching curve is an arc section is in the rest position on the slope of the swivel lever in System and in the zero position disengaged from the slope of the Swivel lever is.
  • a limitation of the certain size is thereby made simple achieved that a pin is arranged on the lever, which in a radial extending to the axis of the switching disc by a certain amount Engages groove of the switching disc.
  • the second hand is from the If the zero actuator can be locked in the zero position, the second hand remains in its zero position until the minute hand setting process has ended and, for example, according to a time signal should be started exactly.
  • a stopping device be operable to stop the clockwork of the clock. This can be due to easily done in that the stopping device by the pivot lever can be actuated.
  • the stopping device can be one of the pivot lever between one the balance of the watch releasing normal position and one of the balance non-positively acting stopping position movably driven Have stopping lever, preferably the stopping lever from the Swing lever against the force of a spring radially away from the balance is acted upon.
  • the area that frictionally engages the balance the stopping lever is preferably a spring arm.
  • a pre-tensioned dome spring be at least on one of the parts second shaft and second display gear is in frictional engagement.
  • Second display gear is freely rotatable on the seconds shaft, without the space required axially between the second shaft and second display gear can be arranged.
  • the dome spring has one or more radially directed Spring having spring arms is one end of the spring arm on the second shaft arranged and the second end of the spring arm on the front the second display gear is supported, the second spring arm end on a radially directed flange-like extension of the second display gear can be supported.
  • the second display gear leading gear train always play, that with a zeroing movement of the second hand counterclockwise must become. If the second hand is then in the Normal operation is driven, the game in the gear train must again be overcome before the second hand is moved. this leads to a delay in the start of the second hand and thus to a False display from 1 to 2 seconds.
  • the second display can be a Have blocking device, which by the movement of the control shaft in Direction to the position can be operated such that a blockage of Second display operation of the movement of the second hand in the zero position prematurely. This takes place before the zero movement of the second hand a blockage of the second display, so that The gear train remains free of play in the normal drive direction.
  • the blocking device can be increased by one Have pivotable locking lever through which force and / or a form-locking and / or frictional drive part of the Second display gear is acted upon.
  • the movable drive part can perform a dual function and thus save installation space be the flange-like extension of the second display gear, whose radially circumferential outer surface can be acted upon by the blocking lever is.
  • a particularly reliable blockage of the second display gear is thereby achieved that the radially circumferential outer surface of a radially circumferential trained approximately V-shaped groove in which the to Rotation axis of the gear parallel pivot axis swiveling locking lever with a roughly corresponding V-shaped blocking area is.
  • the swivel lever serves several functions at the same time.
  • the advance of the blocking of the second display gear before the movement the second hand to the zero position is simple in structure thereby achieved that the pivot axis of the locking lever and the axis of the zeroing 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 about the same direction.
  • the blocking lever can move according to his Release the blocking engagement from the swivel lever without any problems and this continues Move to the cam disk of the cam disk drive.
  • the locking lever by the locking spring in contact with a stop of the swivel lever or the zeroing lever is acted upon, when pivoting the blocking lever and swivel lever in the blocking engagement direction or zero setting direction from Blocking lever the blocking position before reaching the zero position can be reached through the zero lever.
  • the device shown has an axial between a normal position (Figure 1) and an actuating position ( Figure 2) manually displaceable actuating shaft 1 on.
  • the actuating shaft is in its actuating position in a minute hand drive, not shown engaged and can be turned by turning the adjusting shaft 1 the position of a minute hand, also not shown, about its axis of rotation adjust.
  • a pin 2 of an angle lever 4 which can be pivoted about an axis 3 engages transversely to the axis of rotation of the control shaft 1 in a radially rotating in the control shaft 1 trained annular groove 5 a.
  • the angle lever 4 is pivoted about its axis 3 via the pin 2.
  • the snap spring 7 On a protruding arranged on the angle lever 4 approach 6 engages a snap spring 7 such that the angle lever 4 depending on its Swivel position in its rest position over its release position in one Pointer position is acted upon.
  • the snap spring 7 consists of a Spring arm 8, which is fixed at one end and on has a tooth 9 at its other end.
  • tooth 9 lies with its one flank and in Trigger position with its other flank on the approach 6.
  • the spring arm 8 is deflected so that tooth 9 is moved over shoulder 6 (FIG. 3).
  • the angle lever 4 carries on its opposite the control shaft 1 Lever arm a pin 10 which in a groove 11 of a switching disk 12th protrudes.
  • the switching disk 12 is parallel to an axis 3 of the angle lever 4 Axis 13 pivotable with the pivot path through the ends of the groove 11 is limited, on which the pin 10 comes to rest.
  • the groove 11 is formed at an equidistant distance from the axis 13.
  • the switching disk 12 also has an equidistant axis 13 Switching curve 14.
  • This switching curve 14 designed as an arc section interacts with an action surface 15 of a pivot lever 16, that of the switching curve 14 about a pivot axis 17th is pivotable.
  • the application surface 15 is one against a radial inclined slope to the pivot axis 17 of the pivot lever 16 is formed.
  • Switching curve 14 and exposure surface 15 are below inclined to one another such that a self-locking of the two sliding parts are excluded.
  • the pivot lever 16 is through the free end of a biased spring arm 18 with an application surface 15 permanently in the direction spring-loaded on the switching curve 14 and lies in the normal position ( Figure 1) biased with the loading surface 15 on the switching curve 14 on.
  • the pivot lever 16 is designed as a two-armed lever, on the the lever surface 15 is arranged in a lever arm.
  • the other Lever arm is branched into a zero setting arm 19 and a stopping arm 20.
  • In a plane parallel to the zeroing arm 19 by one to the A zeroing lever 22 can be pivoted parallel axis 21 arranged.
  • the axis 21 is located at one end of the Zero lever 22, while at the other end of the zero lever 22nd a footprint 23 is arranged in the pivoting direction.
  • a pin 24 extending parallel to the axis 21 is arranged, which projects into the swivel range of the swivel lever 16.
  • the pin 24 will gripped by a fork-shaped end 25 of the zeroing arm 19 and so the pivot position of the zero lever 22 is determined by the zero arm 19.
  • the dome spring 31 is designed like a leaf spring with a central part 33, of which three extend radially out of the plane of the central part 33 protrude angled spring arms 34. With a trained in the central part 33 Bore 35, the dome spring 31 is arranged on the second shaft 28.
  • the central part 33 is supported on the heart cam 27 from, while the free ends of the spring arms 34 with bias a radially directed, flange-like extension 36 of the second display gear 30 are supported.
  • the stop arm 20 of the pivot 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 with a, about a pivot axis 38 pivotable stopping lever 39 together.
  • One free end of the stopping lever 39 is designed as a spring arm 41 and by pivoting of the stopping lever 39 by the spring 40 for contact with the radially circumferential contour of a balance 42 movable.
  • the spring arm 41 abuts the balance wheel 42 in its rotational movement sustainable.
  • the pin 37 of the stopping 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 stopping lever 39 against the force of the spring 40 at a distance from the balance 42, so that it can move freely.
  • a blocking lever 45 is pivotally arranged.
  • the blocking lever 45 is at its free end against the radial circumferential surface of the flange-like extension 36 movable.
  • the blocking lever 45 has at this free end an approximately V-shaped blocking area 47, with which it corresponds to an approximately V-shaped groove 48 is pivoted into it, which extends radially formed on the radial circumferential surface of the extension 36 is.
  • the zero lever 22 is then moved by the pivot lever 16 until this with its footprint 23 on the heart cam 27 for support comes and rotates until the footprint 23 at the radially lowest Point of the heart cam 27 and so the second hand 29 is in its zero position.
  • the seconds display mechanism 30 is blocked before the adjustment the heart cam 27.
  • the pivot lever then slides under the force of the spring arm 18 16 with its application surface 15 along the switching curve 14 automatically and pivots so that he with his fork-shaped End 25 on the pin 24 moves the zero lever 22 and the blocking lever 45 releases so that this under the action of the blocking spring 46th the zero lever 22 follows.
  • Stop lever 39 pivoted with its spring arm 41 against the balance 42 and stops it.
  • the stop arm 20 acts on the stop surface 43 of the Stop lever 29, its spring arm 41 lifts off the balance 42 and releases them.
  • the clockwork runs freely and the hands move synchronously.
  • An eccentric 50 on the swivel axis serves to adjust the lever paths 17 for the pivot lever 16, an eccentric 51 on the stop 26 the zeroing lever 22 and an eccentric 52 on the pivot axis 44 the blocking lever 45.
  • the second display gear to be blocked is not must necessarily be the impulse sitting on the second wave, but also a gear wheel close to this drive in the one leading to this drive Gear train can be. It is optimal, however, if the one on the second wave seated shoot is blocked.

Abstract

An arrangement for setting the minute hand of a timepiece which has at least minute and second hands 29, having a setting stem 1 which can be moved axially out of a normal position into a setting position. In this case, upon movement of the setting stem 1 out of the normal position into the setting position, a zero setting drive of the second hand 29 can be driven such that it moves the latter into its zero position. By virtue of the setting stem 1 being moved out of the normal position in the direction of the setting position, it is possible to initiate operation of a spring-force-operated drive by means of which the zero setting drive of the second hand 29 can be driven such that it moves the latter into its zero position.

Description

Die Erfindung bezieht sich auf eine Vorrichtung zum Einstellen des Minutenzeigers einer mindestens Minuten- und Sekundenzeiger aufweisenden Uhr, mit einer Stellwelle, die durch Axialbewegung aus einer Normalposition in eine Stellposition bewegbar ist, wobei bei Bewegung der Stellwelle aus der Normalposition in die Stellposition ein Nullstellantrieb des Sekundenzeigers diesen in seiner Nullstellung bewegend antreibbar ist.The invention relates to a device for setting the minute hand one with at least minute and second hands Clock, with an actuating shaft which is moved axially from a normal position is movable into an actuating position, with movement of the actuating shaft from the normal position to the set position a zero actuator of the second hand it can be driven to move in its zero position.

Bei einer derartigen bekannten Vorrichtung ist es von Nachteil, daß eine vollständige Bewegung des Sekundenzeigers in die Nullstellung nur dann erfolgt, wenn die Stellwelle mit Schwung und vollständig in ihre Stellposition bewegt wird. Ist dies nicht der Fall, erfolgt eine Bewegung des Sekundenzeigers nur annähernd aber nicht vollständig in die Nullstellung.In such a known device, it is disadvantageous that a complete movement of the second hand to the zero position only then takes place when the control shaft with momentum and completely in its position is moved. If this is not the case, the second hand moves only approximately but not completely in the zero position.

Aufgabe der Erfindung ist es daher eine Vorrichtung der eingangs genannten Art zu schaffen, durch die bei einfacher Betätigbarkeit eine rasche und vollständige Nullstellung des Sekundenzeigers zur Minutenzeiteinstellung erfolgt.The object of the invention is therefore a device of the aforementioned To create a way through which a quick and completely reset the second hand to set the minute time he follows.

Diese Aufgabe wird erfindungsgemäß dadurch gelöst, daß durch Bewegung der Stellwelle aus der Normalposition in Richtung zur Stellposition hin ein federkraftbetriebener Antrieb auslösbar ist, durch den der Nullstellantrieb des Sekundenzeigers diesen in seine Nullstellung bewegend antreibbar ist. Damit ist es nur noch erforderlich die Stellwelle um ein bestimmtes Mindestmaß aus der Normalposition in Richtung der Stellposition zu bewegen, ohne daß die Stellposition vollständig erreicht werden muß um den Antrieb auszulösen. Dieser Antrieb sorgt dann eigenständig dafür, daß eine vollständige Bewegung des Sekundenzeigers in die Nullstellung erfolgt.This object is achieved in that by movement the control shaft from the normal position towards the control position towards a spring-powered drive can be triggered by the zero actuator the second hand can be driven to move it to its zero position is. So it is only necessary to adjust the control shaft by a certain one Minimum dimension from the normal position in the direction of the positioning position to move without reaching the setting position completely must to trigger the drive. This drive then takes care of itself for a complete movement of the second hand to the zero position he follows.

Die Stellwelle kann ausschließlich zur Nullstellung des Sekundenzeigers dienen.The adjusting shaft can only be used to reset the second hand serve.

Ist die Stellwelle eine Minutenstellwelle der Uhr und die Stellposition die Minutenstellposition, in der durch Verdrehen der Stellwelle der Minutenzeiger manuell bewegbar antreibbar ist, so erfüllt die Stellwelle sowohl die Funktion der Auslösung des Nullstellantriebs als auch die Funktion zur Betätigung der Minutenstellung. Allein das Bewegen der Stellwelle in ihre Minutenposition bewirkt automatisch ein Nullstellen des Sekundenzeigers.If the control shaft is a minute control shaft of the clock and the control position is Minute setting position, in which the minute hand is turned by turning the setting shaft is manually movable, the control shaft fulfills both Function of triggering the zero actuator as well as the function for Actuation of the minute position. Just moving the control shaft into it The minute position automatically causes the second hand to be reset.

Wenn der Sekundenzeiger bei in Stellposition befindlicher Stellwelle vom Nullstellantrieb in der Nullstellung arretierbar ist so verbleibt der Sekundenzeiger in seiner Nullstellung bis der Einstellvorgang des Minutenzeigers beendet ist und entsprechend zum Beispiel eines Zeitzeichens wieder exakt gestartet werden soll.If the second hand is from the Zero actuator can be locked in the zero position so the second hand remains in its zero position until the minute hand setting process has ended and, for example, according to a time signal should be started exactly.

Zur Auslösung des Antriebs kann in einfacher und Bauraum sparender Weise der Hebel ein zweiarmiger, insbesondere ein zweiarmiger Winkelhebel sein.To trigger the drive can be simple and space-saving Way of the lever a two-armed, in particular a two-armed angle lever his.

Ein einfach ausgestalteter und sicher funktionierender Aufbau wird erreicht, wenn der Nullstellantrieb ein Kurvenscheibenantrieb ist, dessen Kurvenscheibe fest auf der den Sekundenzeiger tragenden Sekundenwelle angeordnet und bei Bewegung der Stellwelle in Richtung zur Stellposition durch den federkraftbetriebenen Antrieb von einem Nullstellhebel in die Nullstellung bewegbar antreibbar ist, wobei vorzugsweise der Kurvenscheibenantrieb ein Herznullstellantrieb ist. Ist die Kurvenscheibe durch den Nullstellhebel in der Nullstellung arretierbar so dienen diese Bauteile nicht nur zur Bewegung in die Nullstellung sondern auch zum in der Nullstellung halten des Sekundenzeigers.A simply designed and safely functioning structure is achieved if the zero actuator is a cam drive, its Cam firmly on the second shaft carrying the second hand arranged and when the actuating shaft moves in the direction of the actuating position thanks to the spring-powered drive from a zero lever the zero position can be driven to move, preferably the cam disk drive is a cardiac zero actuator. Is the cam through? the zero lever can be locked in the zero position so these components serve not only to move to the zero position but also to move to the zero position hold the second hand.

Ein nur geringer Bauraum ist erforderlich, wenn der Nullstellhebel ein um eine zur Sekundenwelle parallele Achse schwenkbarer die radial umlaufende Mantelfläche der Kurvenscheibe beaufschlagender Hebel ist.Only a small amount of space is required when the zero lever is turned around an axis parallel to the second wave swivels the radially rotating one The surface of the cam acting lever is.

Ein einfacher und platzsparender Stellantrieb wird dadurch erreicht, daß der Nullstellantrieb einen um eine zur Sekundenwelle parallele Schwenkachse zwischen einer Normalposition und einer Nullstellposition schwenkbaren Schwenkhebel aufweist, der in seine Nullstellposition federbeaufschlagt ist und durch den der Nullstellhebel aus seiner zur Kurvenscheibe beabstandeten Normalposition gegen die Kurvenscheibe bewegbar beaufschlagbar ist.A simple and space-saving actuator is achieved in that the zero actuator has a swivel axis parallel to the second shaft between a normal position and a zero position has pivotable pivot lever which is spring-loaded in its zero position is and through which the zero lever from its to the cam spaced normal position movable against the cam is acted upon.

Der Antrieb kann dadurch gebildet werden, daß durch den Hebel eine Schaltscheibe um eine zur Achse des Hebels parallele Achse schwenkbar antreibbar ist, wobei die Schaltscheibe eine Schaltkurve aufweist, durch die eine Beaufschlagungsfläche des Schwenkhebels beaufschlagbar und der Schwenkhebel entgegen seiner Federbeaufschlagung aus seiner Normalposition in seine Nullstellposition bewegbar ist.The drive can be formed in that a by the lever Switch disc can be pivoted about an axis parallel to the axis of the lever can be driven, the switching disc having a switching curve, by which can be acted upon by a loading surface of the pivoting lever and the swivel lever against its spring action from his Normal position is movable into its zero position.

Sind dabei Schaltkurve und Beaufschlagungsfläche unter einem Winkel zueinander geneigt, unter dem eine Selbsthemmung ausgeschlossen ist, so gleiten Schaltkurve und Beaufschlagungsfläche unter der Kraft der Federbeaufschlagung aneinander entlang und bewirken ein Verschwenken des Schwenkhebels. Are the switching curve and the contact surface at an angle? inclined towards each other, under which self-locking is excluded, the switching curve and the loading surface slide under the force of the spring loading along each other and cause a pivoting of the swivel lever.

Die Schaltkurve kann einen zur Achse der Schaltscheibe äquidistanten Bogen und die Beaufschlagungsfläche eine gegenüber einer Radialen zur Schwenkachse des Schwenkhebels geneigte Schräge sein, wobei aus Gründen geringen erforderlichen Bauraums die Schaltkurve ein Bogenabschnitt ist, der in Ruheposition an der Schräge des Schwenkhebels in Anlage und in der Nullstellposition außer Eingriff von der Schräge des Schwenkhebels ist.The switching curve can be equidistant from the axis of the switching disc Arc and the area of action one against a radial to Pivot axis of the pivot lever be inclined, being off Because of the small space required, the switching curve is an arc section is in the rest position on the slope of the swivel lever in System and in the zero position disengaged from the slope of the Swivel lever is.

Ist die Schaltscheibe um ein bestimmtes Maß relativ zum Hebel frei schwenkbar, so gelangt sie am Ende des Gleitvorgangs zwischen Schaltscheibe und Schräge außer Eingriff von der Schräge wodurch die den Schwenkhebel beaufschlagende Federkraft vollständig zum Antrieb des Nullstellantriebs dient.Is the switching disc free by a certain amount relative to the lever swiveling, so it gets between the switching disc at the end of the sliding process and bevel disengaged from the bevel which causes the Spring force acting on the rocker arm fully to drive the Serves zero actuator.

Eine Begrenzung des bestimmten Maßes wird auf einfache Weise dadurch erreicht, daß am Hebel ein Zapfen angeordnet ist, der in eine radial zur Achse der Schaltscheibe sich um das bestimmte Maß erstreckende Nut der Schaltscheibe eingreift.A limitation of the certain size is thereby made simple achieved that a pin is arranged on the lever, which in a radial extending to the axis of the switching disc by a certain amount Engages groove of the switching disc.

Um die Stellwelle immer definiert in einer ihrer Endstellungen zu halten und darüber hinaus die Schwenkbewegung des Hebels zu beschleunigen kann der Hebel von einer Schnappfeder je nach seiner Schwenkposition in seine Ruheposition oder seine Zeigerstellposition beaufschlagt sein.To always keep the control shaft in a defined position in one of its end positions and also to accelerate the pivoting movement of the lever the lever of a snap spring depending on its swivel position be loaded into its rest position or its pointer setting position.

Wenn der Sekundenzeiger bei in Stellposition befindlicher Stellwelle vom Nullstellantrieb in der Nullstellung arretierbar ist, so verbleibt der Sekundenzeiger in seiner Nullstellung, bis der Einstellvorgang des Minutenzeigers beendet ist und entsprechend zum Beispiel eines Zeitzeichens wieder exakt gestartet werden soll. Dazu kann durch die Stellwelle bei deren Bewegung aus der Normalposition in die Stellposition eine Anhalteeinrichtung zum Anhalten des Uhrwerks der Uhr betätigbar sein. Dies kann auf einfache Weise dadurch erfolgen, daß durch den Schwenkhebel die Anhalteeinrichtung betätigbar ist.If the second hand is from the If the zero actuator can be locked in the zero position, the second hand remains in its zero position until the minute hand setting process has ended and, for example, according to a time signal should be started exactly. This can be done with the control shaft Movement from the normal position to the parking position a stopping device be operable to stop the clockwork of the clock. This can be due to easily done in that the stopping device by the pivot lever can be actuated.

Die Anhalteeinrichtung kann einen von dem Schwenkhebel zwischen einer die Unruh der Uhr freigebenden Normalposition und einer die Unruh kraftschlüssig beaufschlagenden Anhalteposition bewegbar antreibbaren Anhaltehebel aufweisen, wobei vorzugsweise der Anhaltehebel von dem Schwenkhebel entgegen der Kraft einer Feder radial von der Unruh weg beaufschlagbar ist. Der die Unruh kraftschlüssig beaufschlagende Bereich des Anhaltehebels ist dazu vorzugsweise ein Federarm.The stopping device can be one of the pivot lever between one the balance of the watch releasing normal position and one of the balance non-positively acting stopping position movably driven Have stopping lever, preferably the stopping lever from the Swing lever against the force of a spring radially away from the balance is acted upon. The area that frictionally engages the balance the stopping lever is preferably a spring arm.

Um eine Nullstellung des Sekundenzeigers durchführen zu können, ohne daß davon der Antrieb des Uhrwerks betroffen ist, kann die Sekundenwelle kraftschlüssig mit dem Uhrwerk der Uhr gekoppelt sein.To be able to reset the second hand without The second wave can affect the movement of the clockwork be frictionally coupled to the clockwork of the watch.

Dazu kann in einfacher Ausbildung zwischen Sekundenwelle und einem Sekundenanzeigetrieb des Uhrwerks eine vorgespannte Kuppelfeder angeordnet sein, die zumindest an einem der Teile Sekundenwelle und Sekundenanzeigetrieb reibschlüssig in Anlage ist.This can be done in a simple training between a second wave and a Second movement of the clockwork arranged a pre-tensioned dome spring be at least on one of the parts second shaft and second display gear is in frictional engagement.

Eine platzsparende Ausbildung wird dadurch erreicht, daß der Sekundenanzeigetrieb auf der Sekundenwelle frei drehbar gelagert ist, wobei ohne wesentlichen Bauraumbedarf die Kuppelfeder axial zwischen Sekundenwelle und Sekundenanzeigetrieb angeordnet sein kann.Space-saving training is achieved in that the second display gear is freely rotatable on the seconds shaft, without the space required axially between the second shaft and second display gear can be arranged.

Sowohl zu einem einfachen Aufbau der Kuppelfeder als auch zu einer konzentrischen Belastung der von der Kuppelfeder beaufschlagten Bauteile führt es, wenn die Kuppelfeder eine ein oder mehrere radial gerichtete Federarme aufweisende Feder ist, deren eines Federarmende an der Sekundenwelle angeordnet und deren zweites Federarmende stirnseitig an dem Sekundenanzeigetrieb abgestützt ist, wobei das zweite Federarmende an einer radial gerichteten flanschartigen Erweiterung des Sekundenanzeigetriebs abgestützt sein kann.Both to a simple construction of the dome spring and to one concentric loading of the components loaded by the dome spring it results when the dome spring has one or more radially directed Spring having spring arms is one end of the spring arm on the second shaft arranged and the second end of the spring arm on the front the second display gear is supported, the second spring arm end on a radially directed flange-like extension of the second display gear can be supported.

Aufgrund von Herstellungstoleranzen ist indem zu dem Sekundenanzeigetrieb führenden Räderwerk immer Spiel vorhanden, das bei einer Nullstellbewegung des Sekundenzeigers entgegen dem Uhrzeigersinn überwunden werden muß. Wenn anschließend der Sekundenzeiger wieder im Normalbetrieb angetrieben wird, muß erst das Spiel im Räderwerk wieder überwunden werden ehe der Sekundenzeiger bewegt wird. Dies führt zu einer Verzögerung des Anlaufens des Sekundenzeigers und somit zu einer Falschanzeige von 1 bis 2 Sekunden. Um ein korrektes Anlaufen des Sekundenzeigers zu gewährleisten, kann der Sekundenanzeigetrieb eine Blockiereinrichtung aufweisen, die durch die Bewegung der Stellwelle in Richtung zur Stellposition hin derart betätigbar ist, daß eine Blockade des Sekundenanzeigetriebs der Bewegung des Sekundenzeigers in die Nullstellung voreilend erfolgt. Damit erfolgt vor der Nullstellbewegung des Sekundenzeigers eine Blockade des Sekundenanzeigetriebs, so daß das Räderwerk in Normalantriebsrichtung spielfrei verbleibt.Due to manufacturing tolerances, the second display gear leading gear train always play, that with a zeroing movement of the second hand counterclockwise must become. If the second hand is then in the Normal operation is driven, the game in the gear train must again be overcome before the second hand is moved. this leads to a delay in the start of the second hand and thus to a False display from 1 to 2 seconds. To ensure that the To ensure the second hand, the second display can be a Have blocking device, which by the movement of the control shaft in Direction to the position can be operated such that a blockage of Second display operation of the movement of the second hand in the zero position prematurely. This takes place before the zero movement of the second hand a blockage of the second display, so that The gear train remains free of play in the normal drive direction.

In einfacher Ausgestaltung kann die Blockiereinrichtung einen um eine Schwenkachse schwenkbaren Blockierhebel aufweisen, durch den kraft- und/oder form- und/oder reibschlüssig ein bewegbares Antriebsteil des Sekundenanzeigetriebs beaufschlagbar ist.In a simple embodiment, the blocking device can be increased by one Have pivotable locking lever through which force and / or a form-locking and / or frictional drive part of the Second display gear is acted upon.

In Doppelfunktion und damit Bauraum sparend kann das bewegbare Antriebsteil die flanschartige Erweiterung des Sekundenanzeigetriebs sein, dessen radial umlaufende Mantelfläche von dem Blockierhebel beaufschlagbar ist.The movable drive part can perform a dual function and thus save installation space be the flange-like extension of the second display gear, whose radially circumferential outer surface can be acted upon by the blocking lever is.

Eine besonders zuverlässige Blockade des Sekundenanzeigetriebs wird dadurch erreicht, daß die radial umlaufende Mantelfläche einer radial umlaufend ausgebildete etwa V-förmige Nut aufweist, in die der um die zur Drehachse des Zahnrads parallele Schwenkachse schwenkbare Blockierhebel mit einem etwa entsprechend V-förmigen Blockierbereich hineinschwenkbar ist.A particularly reliable blockage of the second display gear is thereby achieved that the radially circumferential outer surface of a radially circumferential trained approximately V-shaped groove in which the to Rotation axis of the gear parallel pivot axis swiveling locking lever with a roughly corresponding V-shaped blocking area is.

Ist der Blockierhebel durch den Schwenkhebel schwenkbar antreibbar, so dient der Schwenkhebel mehreren Funktionen gleichzeitig.If the blocking lever can be pivotally driven by the pivoting lever, then the swivel lever serves several functions at the same time.

Die Voreilung der Blockade des Sekundenanzeigetriebs vor der Bewegung des Sekundenzeigers in die Nullstellung wird in einfachem Aufbau dadurch erreicht, daß die Schwenkachse des Blockierhebels und die Achse des Nullstellhebels axial zueinander angeordnet sind und die Blokkiereingriffsrichtung des Blockierhebels und die Nullstellrichtung des Nullstellhebels etwa gleich gerichtet sind.The advance of the blocking of the second display gear before the movement the second hand to the zero position is simple in structure thereby achieved that the pivot axis of the locking lever and the axis of the zeroing 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 about the same direction.

Ist der Blockierhebel sowohl in Blockiereingriffsrichtung als auch gegen den Schwenkhebel diesen in Nullstellposition beaufschlagend durch eine Blockierfeder beaufschlagt, so kann sich der Blockierhebel nach seinem Blockiereingriff problemlos vom Schwenkhebel lösen und dieser sich weiter zur Kurvenscheibe des Kurvenscheibenantriebs bewegen. Dazu besteht ein einfacher Aufbau darin, daß der Blockierhebel durch die Blockierfeder in Anlage an einem Anschlag des Schwenkhebels oder des Nullstellhebels beaufschlagt ist, wobei bei Verschwenken von Blockierhebel und Schwenkhebel in Blockiereingriffsrichtung bzw. Nullstellrichtung vom Blockierhebel die Blockierposition vor dem Erreichen der Nullstellposition durch den Nullstellhebel erreichbar ist.Is the locking lever both in the direction of locking engagement and against the swivel lever by pressing it into the zero position Blocked spring applied, the blocking lever can move according to his Release the blocking engagement from the swivel lever without any problems and this continues Move to the cam disk of the cam disk drive. There is a simple structure in that the locking lever by the locking spring in contact with a stop of the swivel lever or the zeroing lever is acted upon, when pivoting the blocking lever and swivel lever in the blocking engagement direction or zero setting direction from Blocking lever the blocking position before reaching the zero position can be reached through the zero lever.

Ein Ausführungsbeispiel der Erfindung ist in der Zeichnung dargestellt und wird im folgenden näher beschrieben. Es zeigen:

Figur 1
eine Vorrichtung zum Einstellen des Minutenzeigers einer Minutenzeiger und Sekundenzeiger aufweisenden Uhr in Normalposition
Figur 2
die Vorrichtung nach Figur 1 in Stellposition
Figur 3
einen Ausschnitt der Vorrichtung nach Figur 1 in einer Zwischenstellung zwischen Normalposition und Stellposition
Figur 4
eine Seitenansicht im Schnitt entlang der Linie II-II in Figur 2
An embodiment of the invention is shown in the drawing and will be described in more detail below. Show it:
Figure 1
a device for setting the minute hand of a minute hand and second hand clock in the normal position
Figure 2
the device of Figure 1 in the position
Figure 3
a section of the device of Figure 1 in an intermediate position between normal position and position
Figure 4
a side view in section along the line II-II in Figure 2

Die dargestellte Vorrichtung weist eine axial zwischen einer Normalposition (Figur 1) und einer Stellposition (Figur 2) manuell verschiebbare Stellwelle 1 auf.The device shown has an axial between a normal position (Figure 1) and an actuating position (Figure 2) manually displaceable actuating shaft 1 on.

Die Stellwelle ist in ihrer Stellposition in einem nicht dargestellten Minutenzeigerantrieb eingekuppelt und kann durch Verdrehen der Stellwelle 1 um ihre Drehachse die Position eines ebenfalls nicht dargestellten Minutenzeigers verstellen.The actuating shaft is in its actuating position in a minute hand drive, not shown engaged and can be turned by turning the adjusting shaft 1 the position of a minute hand, also not shown, about its axis of rotation adjust.

Ein Stift 2 eines um eine Achse 3 schwenkbaren Winkelhebels 4 greift quer zur Drehachse der Stellwelle 1 in eine radial umlaufend in der Stellwelle 1 ausgebildete Ringnut 5 ein. Durch axiales Verschieben der Stellwelle 1 wird über den Stift 2 der Winkelhebel 4 um seine Achse 3 geschwenkt.A pin 2 of an angle lever 4 which can be pivoted about an axis 3 engages transversely to the axis of rotation of the control shaft 1 in a radially rotating in the control shaft 1 trained annular groove 5 a. By axially moving the control shaft 1, the angle lever 4 is pivoted about its axis 3 via the pin 2.

An einem am Winkelhebel 4 hervorstehend angeordneten Ansatz 6 greift eine Schnappfeder 7 derart an, daß der Winkelhebel 4 je nach seiner Schwenkposition in seine Ruheposition über seine Auslöseposition in eine Zeigerstellposition beaufschlagt ist. Die Schnappfeder 7 besteht aus einem Federarm 8, der an seinem einen Ende fest angeordnet ist und an seinem anderem Ende einen Zahn 9 aufweist.On a protruding arranged on the angle lever 4 approach 6 engages a snap spring 7 such that the angle lever 4 depending on its Swivel position in its rest position over its release position in one Pointer position is acted upon. The snap spring 7 consists of a Spring arm 8, which is fixed at one end and on has a tooth 9 at its other end.

In der Ruheposition liegt der Zahn 9 mit seiner einen Flanke und in der Auslöseposition mit seiner anderen Flanke an dem Ansatz 6 an. Bei Verschwenken des Winkelhebels 4 wird der Federarm 8 ausgelenkt, so daß der Zahn 9 über dem Ansatz 6 hinwegbewegt wird (Figur 3).In the rest position, tooth 9 lies with its one flank and in Trigger position with its other flank on the approach 6. When swiveling of the angle lever 4, the spring arm 8 is deflected so that tooth 9 is moved over shoulder 6 (FIG. 3).

Der Winkelhebel 4 trägt an seinem der Stellwelle 1 entgegengesetzten Hebelarm einen Zapfen 10, der in eine Nut 11 einer Schaltscheibe 12 hineinragt.The angle lever 4 carries on its opposite the control shaft 1 Lever arm a pin 10 which in a groove 11 of a switching disk 12th protrudes.

Die Schaltscheibe 12 ist um eine zur Achse 3 des Winkelhebels 4 parallele Achse 13 schwenkbar wobei der Schwenkweg durch die Enden der Nut 11 begrenzt wird, an denen der Zapfen 10 zur Anlage gelangt. Die Nut 11 ist dabei in einem äquidistanten Abstand zur Achse 13 ausgebildet.The switching disk 12 is parallel to an axis 3 of the angle lever 4 Axis 13 pivotable with the pivot path through the ends of the groove 11 is limited, on which the pin 10 comes to rest. The groove 11 is formed at an equidistant distance from the axis 13.

Die Schaltscheibe 12 besitzt einen ebenfalls zur Achse 13 äquidistante Schaltkurve 14. Diese als Bogenabschnitt ausgebildete Schaltkurve 14 wirkt mit einer Beaufschlagungsfläche 15 eines Schwenkhebels 16 zusammen, der von der Schaltkurve 14 um eine Schwenkachse 17 schwenkbar ist.The switching disk 12 also has an equidistant axis 13 Switching curve 14. This switching curve 14 designed as an arc section interacts with an action surface 15 of a pivot lever 16, that of the switching curve 14 about a pivot axis 17th is pivotable.

Dazu ist die Beaufschlagungsfläche 15 als eine gegenüber einer Radialen zur Schwenkachse 17 des Schwenkhebels 16 geneigte Schräge ausgebildet. Schaltkurve 14 und Beaufschlagungsfläche 15 sind dabei unter einem solchen Winkel zueinander geneigt, daß eine Selbsthemmung der beiden aufeinander gleitenden Teile ausgeschlossen ist.For this purpose, the application surface 15 is one against a radial inclined slope to the pivot axis 17 of the pivot lever 16 is formed. Switching curve 14 and exposure surface 15 are below inclined to one another such that a self-locking of the two sliding parts are excluded.

Der Schwenkhebel 16 ist durch das freie Ende eines vorgespannten Federarms 18 mit einer Beaufschlagungsfläche 15 permanent in Richtung auf die Schaltkurve 14 federbeaufschlagt und liegt in der Normalposition (Figur 1) vorgespannt mit der Beaufschlagungsfläche 15 auf der Schaltkurve 14 auf.The pivot lever 16 is through the free end of a biased spring arm 18 with an application surface 15 permanently in the direction spring-loaded on the switching curve 14 and lies in the normal position (Figure 1) biased with the loading surface 15 on the switching curve 14 on.

Ein Entlanggleiten der Schaltkurve 14 an der Beaufschlagungsfläche 15 und damit ein Verschwenken des Schwenkhebels 16 ist aber erst möglich, wenn durch Bewegen der Stellwelle 1 aus der Normalposition in die Stellposition der Winkelhebel 4 geschwenkt wird. Dabei gleitet die Schaltkurve 14 unter der Krafteinwirkung des Federarms 18 auf dem Schwenkhebel 16 entlang der Beaufschlagungsfläche 15, bis sie am Ende ihres Schwenkwegs außer Eingriff von der Beaufschlagungsfläche 15 gelangt, da die Schwenkbarkeit des Schwenkhebels 16 begrenzt ist.Sliding along the switching curve 14 on the application surface 15 and thus pivoting the pivot lever 16 is only possible if by moving the control shaft 1 from the normal position to the control position the angle lever 4 is pivoted. The shift curve glides 14 under the force of the spring arm 18 on the pivot lever 16 along the loading surface 15 until they are at the end of their Swivel path disengaged from the loading surface 15, since the pivotability of the pivot lever 16 is limited.

Der Schwenkhebel 16 ist als zweiarmiger Hebel ausgebildet, an dessen einem Hebelarm die Beaufschlagungsfläche 15 angeordnet ist. Der andere Hebelarm ist in einen Nullstellarm 19 und einen Anhaltearm 20 verzweigt. In einer zum Nullstellarm 19 parallelen Ebene um eine zur Schwenkachse 17 parallele Achse 21 schwenkbar ist ein Nullstellhebel 22 angeordnet. Dabei befindet sich die Achse 21 an dem einen Ende des Nullstellhebels 22, während an dem anderen Ende des Nullstellhebels 22 in Schwenkrichtung gerichtet eine Stellfläche 23 angeordnet ist.The pivot lever 16 is designed as a two-armed lever, on the the lever surface 15 is arranged in a lever arm. The other Lever arm is branched into a zero setting arm 19 and a stopping arm 20. In a plane parallel to the zeroing arm 19 by one to the A zeroing lever 22 can be pivoted parallel axis 21 arranged. The axis 21 is located at one end of the Zero lever 22, while at the other end of the zero lever 22nd a footprint 23 is arranged in the pivoting direction.

Etwa mittig zwischen Stellfläche 23 und Achse 21 ist an dem Nullstellhebel 22 ein parallel zur Achse 21 sich erstreckender Stift 24 angeordnet, der in den Schwenkbereich des Schwenkhebels 16 ragt. Der Stift 24 wird von einem gabelförmigen Ende 25 des Nullstellarms 19 umgriffen und so die Schwenkposition des Nullstellhebels 22 vom Nullstellarm 19 bestimmt.Approximately midway between floor space 23 and axis 21 is on the zero lever 22 a pin 24 extending parallel to the axis 21 is arranged, which projects into the swivel range of the swivel lever 16. The pin 24 will gripped by a fork-shaped end 25 of the zeroing arm 19 and so the pivot position of the zero lever 22 is determined by the zero arm 19.

Bei Verschwenken des Schwenkhebels 16 aus der Normalposition in die Nullstellposition verschwenkt das gabelförmige Ende 25 des Nullstellarms 19 den Nullstellhebel 22 bis zur Anlage an einem Anschlag 26. Dabei gelangt die Stellfläche 23 in den Bereich einer Herzkurvenscheibe 27, die drehfest auf einer zur Achse 21 parallelen Sekundenwelle 28 angeordnet ist.When pivoting the pivot lever 16 from the normal position in the The zeroing position pivots the fork-shaped end 25 of the zeroing arm 19 the zeroing lever 22 until it comes to rest against a stop 26 the footprint 23 in the area of a heart cam 27, the rotatably arranged on a second shaft 28 parallel to the axis 21 is.

Durch die Beaufschlagung der radial umlaufenden Mantelfläche der Herzkurvenscheibe 27 von der Stellfläche 23 wird die Herzkurvenscheibe 27 so weit verschwenkt, bis die Stellfläche 23 an der radial geringsten Stelle zur Drehachse der Herzkurvenscheibe 27 gelangt ist. Damit wird aber auch der auf der Sekundenwelle 28 angeordnete Sekundenzeiger 29 in seine Nullstellung bewegt.By applying the radial circumferential surface of the heart cam 27 of the footprint 23 becomes the heart cam 27 pivoted until the footprint 23 at the radially lowest point has reached the axis of rotation of the heart cam 27. But with that also the second hand 29 arranged on the second shaft 28 in its zero position moves.

Diese Verschwenkung der Sekundenwelle 28 ist unbehindert möglich, da ein Sekundenanzeigetrieb 30 des Räderwerks des Uhrwerks frei drehbar auf der Sekundenwelle 28 gelagert und nur durch eine Kuppelfeder 31 kraftschlüssig mit der Sekundenwelle 28 gekuppelt ist. Damit ist die Sekundenwelle 28 durch Überwindung des Kraftschlusses der Kuppelfeder 31 drehbar, ohne durch den Sekundenanzeigetrieb 30 blockiert zu sein.This pivoting of the second shaft 28 is possible without hindrance since a second display gear 30 of the gear train of the clockwork freely rotatable mounted on the second shaft 28 and only by a dome spring 31 is non-positively coupled to the second shaft 28. So that's the second wave 28 by overcoming the frictional engagement of the dome spring 31 rotatable without being blocked by the second display mechanism 30.

Die Kuppelfeder 31 ist blattfederartig mit einem Zentralteil 33 ausgebildet, von dem drei radial sich erstreckende, aus der Ebene des Zentralteils 33 abgewinkelte Federarme 34 wegragen. Mit einer im Zentralteil 33 ausgebildeten Bohrung 35 ist die Kuppelfeder 31 auf der Sekundenwelle 28 angeordnet. Dabei stützt sich der Zentralteil 33 an der Herzkurvenscheibe 27 ab, während die freien Enden der Federarme 34 mit Vorspannung an einer radial gerichteten, flanschartigen Erweiterung 36 des Sekundenanzeigetriebs 30 abgestützt sind. Durch Relativverdrehung von Herzkurvenscheibe 27 und Sekundenanzeigetrieb 30 mit ausreichender Kraft ist die kraftschlüssige Kupplung zwischen dem Zentralteil 33 der Kuppelfeder 31 mit der Herzkurvenscheibe 27 und dem Sekundenanzeigetrieb 30 überwindbar. The dome spring 31 is designed like a leaf spring with a central part 33, of which three extend radially out of the plane of the central part 33 protrude angled spring arms 34. With a trained in the central part 33 Bore 35, the dome spring 31 is arranged on the second shaft 28. The central part 33 is supported on the heart cam 27 from, while the free ends of the spring arms 34 with bias a radially directed, flange-like extension 36 of the second display gear 30 are supported. By relative rotation of the heart cam 27 and second display gear 30 with sufficient force frictional coupling between the central part 33 of the dome spring 31 can be overcome with the heart cam 27 and the second display gear 30.

Der Anhaltearm 20 des Schwenkhebels 16 besitzt an seinem freien Ende einen quer zu seiner Schwenkebene hervorstehenden Stift 37. Dieser Stift 37 wirkt entgegen der Kraft einer Feder 40 mit einem, um eine Schwenkachse 38 schwenkbaren Anhaltehebel 39 zusammen. Das eine freie Ende des Anhaltehebels 39 ist als Federarm 41 ausgebildet und durch Verschwenken des Anhaltehebels 39 durch die Feder 40 zur Anlage an die radial umlaufende Kontur einer Unruh 42 bewegbar. Durch die federnde Anlage des Federarms 41 an der Unruh 42 ist diese in ihrer Drehbewegung anhaltbar. Der Stift 37 des Anhaltehebels 39 ist in der Normalstellung des Schwenkhebels 16 an einer Anschlagfläche 43 des Anhaltehebels 39 in Anlage und hält damit den Federarm 41 des Anhaltehebels 39 entgegen der Kraft der Feder 40 auf Abstand von der Unruh 42, so daß diese sich frei bewegen kann.The stop arm 20 of the pivot 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 with a, about a pivot axis 38 pivotable stopping lever 39 together. One free end of the stopping lever 39 is designed as a spring arm 41 and by pivoting of the stopping lever 39 by the spring 40 for contact with the radially circumferential contour of a balance 42 movable. By the resilient The spring arm 41 abuts the balance wheel 42 in its rotational movement sustainable. The pin 37 of the stopping 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 stopping lever 39 against the force of the spring 40 at a distance from the balance 42, so that it can move freely.

Durch Verschwenken des Schwenkhebels 16 in die Nullstellposition gelangt der Stift 37 des Anhaltearms 20 außer Eingriff von dem Anhaltehebel 39, so daß die Feder 40 den Anhaltehebel 39 verschwenkt und dieser mit seinem Federarm 41 unter Vorspannung an der radial umlaufenden Kontur der Unruh 42 zur Anlage kommt und die Bewegung der Unruh 42 blockiert. Damit ist auch das Uhrwerk außer Betrieb gesetzt.By pivoting the pivot lever 16 reaches the zero position the pin 37 of the stopping arm 20 is disengaged from the stopping lever 39, so that the spring 40 pivots the stopping lever 39 and this with its spring arm 41 under prestress on the radially rotating Contour of the balance 42 comes to rest and the movement of the balance 42 blocked. The clockwork is also out of operation.

Um eine zur Achse 21 des Nullstellhebels 22 parallele Schwenkachse 44 ist ein Blockierhebel 45 schwenkbar angeordnet.About a pivot axis 44 parallel to the axis 21 of the zeroing lever 22 a blocking lever 45 is pivotally arranged.

Durch eine Blockierfeder 46 ist der Blockierhebel 45 mit seinem freien Ende gegen die radial umlaufende Mantelfläche der flanschartigen Erweiterung 36 bewegbar. An diesem freien Ende besitzt der Blockierhebel 45 einen etwa V-förmigen Blockierbereich 47, mit dem er in eine etwa entsprechend V-förmige Nut 48 hineinschwenkbar ist, die radial umlaufend an der radial umlaufenden Mantelfläche der Erweiterung 36 ausgebildet ist. By means of a blocking spring 46, the blocking lever 45 is at its free end against the radial circumferential surface of the flange-like extension 36 movable. The blocking lever 45 has at this free end an approximately V-shaped blocking area 47, with which it corresponds to an approximately V-shaped groove 48 is pivoted into it, which extends radially formed on the radial circumferential surface of the extension 36 is.

In der Normalposition (Figur 1) ist der Blockierhebel 45 von dem Stift 24 des Nullstellhebels 22 entgegen der Kraft der Blockierfeder 46 mit seinem Blockierbereich 47 von der Nut 48 außer Eingriff gehalten.In the normal position (FIG. 1), the blocking lever 45 is removed from the pin 24 the zero lever 22 against the force of the blocking spring 46 with his Blocking area 47 held out of engagement by the groove 48.

Wird der Nullstellhebel 22 durch den Schwenkhebel 16 aus der Normalposition in die Nullstellposition verschwenkt, so folgt der an dem Stift 24 abgestützte Blockierhebel 45, bis er mit seinem Blockierbereich 47 in die Nut 48 eingreift und damit den Sekundenanzeigetrieb 30 blockiert.Is the zero lever 22 by the pivot lever 16 from the normal position pivoted into the zero position, this follows on the pin 24 supported blocking lever 45 until it with its blocking area 47 in the Groove 48 engages and thus blocks the second display gear 30.

Der Nullstellhebel 22 wird dann vom Schwenkhebel 16 weiterbewegt, bis dieser mit seiner Stellfläche 23 an der Herzkurvenscheibe 27 zur Auflage kommt und diese verdreht, bis die Stellfläche 23 an dem radial tiefsten Punkt der Herzkurvenscheibe 27 anliegt und so der Sekundenzeiger 29 sich in seiner Nullstellung befindet.The zero lever 22 is then moved by the pivot lever 16 until this with its footprint 23 on the heart cam 27 for support comes and rotates until the footprint 23 at the radially lowest Point of the heart cam 27 and so the second hand 29 is in its zero position.

Dabei erfolgt die Blockade des Sekundenanzeigetriebs 30 vor der Verstellung der Herzkurvenscheibe 27.The seconds display mechanism 30 is blocked before the adjustment the heart cam 27.

Zum Einstellen der Uhr auf genaue Zeit wird zuerst die Stellwelle 1 mittels einer nicht dargestellten Krone aus der in Figur 1 dargestellten Normalposition nach oben in die in Figur 2 dargestellte Stellposition gezogen. Damit wird der Winkelhebel 4 entgegen dem Uhrzeigersinn verschwenkt und überträgt seine Bewegung auf die Schaltscheibe 12. Bis zum Erreichen der in Figur 3 dargestellten Zwischenstellung ist der Winkel zwischen der Schaltkurve 14 und der Beaufschlagungsfläche 15 so, daß Selbsthemmung der beiden aneinanderliegenden Teile besteht. Bei dem weiteren Verschwenken der Schaltkurve 14 kommt es auch zu einem Verschwenken des Schwenkhebels 16, so daß der Winkel zwischen Schaltkurve 14 und Beaufschlagungsfläche 15 derart ändert, daß nunmehr eine Selbsthemmung dieser beiden aneinanderliegenden Teile ausgeschlossen ist. Unter der Kraft des Federarms 18 gleitet dann der Schwenkhebel 16 mit seiner Beaufschlagungsfläche 15 entlang der Schaltkurve 14 selbsttätig und verschwenkt dabei so, daß er mit seinem gabelförmigen Ende 25 über den Stift 24 den Nullstellhebel 22 bewegt und den Blockierhebel 45 freigibt, so daß dieser unter der Wirkung der Blockierfeder 46 dem Nullstellhebel 22 folgt.To set the clock to the exact time, first use the setting shaft 1 a crown, not shown, from the normal position shown in FIG. 1 pulled up into the position shown in Figure 2. So that the angle lever 4 is pivoted counterclockwise and transmits its movement to the switching disc 12. Until it is reached the intermediate position shown in Figure 3 is the angle between the switching curve 14 and the pressure surface 15 so that There is self-locking of the two adjacent parts. In which If the switching curve 14 is pivoted further, it also pivots of the pivot lever 16 so that the angle between the switching curve 14 and 15 acted upon so that now a Self-locking of these two adjacent parts excluded is. The pivot lever then slides under the force of the spring arm 18 16 with its application surface 15 along the switching curve 14 automatically and pivots so that he with his fork-shaped End 25 on the pin 24 moves the zero lever 22 and the blocking lever 45 releases so that this under the action of the blocking spring 46th the zero lever 22 follows.

Damit wird zuerst der Sekundenanzeigetrieb blockiert. Anschließend wird von dem Nullstellhebel 22 mit dessen Stellfläche 23 die Herzkurvenscheibe 27 beaufschlagt und unter Überwindung der Reibkräfte der Kuppelfeder 31 unmittelbar in die Nullstellung bewegt und dort festgehalten.This blocks the second display operation first. Then will from the zero lever 22 with its footprint 23 the heart cam 27 acted upon and overcoming the frictional forces of the dome spring 31 immediately moved to the zero position and held there.

Gleichzeitig wird durch den Anhaltearm 20 des Schwenkhebels 16 der Anhaltehebel 39 mit seinem Federarm 41 gegen die Unruh 42 verschwenkt und hält diese an.At the same time by the stopping arm 20 of the pivot lever 16 Stop lever 39 pivoted with its spring arm 41 against the balance 42 and stops it.

Nunmehr werden durch Drehen der Stellwelle 1 ein nicht dargestellter Minutenzeiger und ein ebenfalls nicht dargestellter Stundenzeiger auf die korrekte Zeit, z.B. des nächsten Zeitzeichens, eingestellt.Now, by turning the setting shaft 1, a minute hand, not shown and an hour hand, also not shown, on the correct time, e.g. of the next time signal.

Ertönt dieses Zeitzeichen, so wird die Stellwelle 1 wieder in die Normalstellung verschoben, wodurch zwangsläufig der Winkelhebel 4 und nach Durchlaufen eines bestimmten Freiwegs des Winkelhebels 4 über die Schaltscheibe 12 der Schwenkhebel 16 und der Nullstellhebel 22 mit seiner Stellfläche 23 in ihre Normalposition zurückbewegt werden, wodurch die Herzkurvenscheibe 27 freigegeben wird.If this time signal sounds, the actuating shaft 1 returns to the normal position moved, which inevitably the angle lever 4 and after Pass through a certain free travel of the angle lever 4 over the Switch disc 12, the pivot lever 16 and the zero lever 22 with its Floor space 23 are moved back to their normal position, whereby the heart cam 27 is released.

Anschließend hebt der Stift 24 den Blockierhebel 45 an, so daß dessen Blockierbereich 47 aus der Nut 48 herausbewegt und der Sekundenanzeigetrieb 30 freigegeben wird. Then the pin 24 lifts the blocking lever 45 so that it Blocking area 47 moved out of the groove 48 and the second display gear 30 is released.

Gleichzeitig beaufschlagt der Anhaltearm 20 die Anschlagfläche 43 des Anhaltehebels 29, hebt dessen Federarm 41 von der Unruh 42 ab und gibt diese frei.At the same time, the stop arm 20 acts on the stop surface 43 of the Stop lever 29, its spring arm 41 lifts off the balance 42 and releases them.

Damit läuft das Uhrwerk frei und die Zeiger bewegen sich synchron.The clockwork runs freely and the hands move synchronously.

Zur Justierung der Hebelwege dienen ein Exzenter 50 an der Schwenkachse 17 für den Schwenkhebel 16, ein Exzenter 51 am Anschlag 26 des Nullstellhebels 22 sowie ein Exzenter 52 an der Schwenkachse 44 des Blockierhebels 45.An eccentric 50 on the swivel axis serves to adjust the lever paths 17 for the pivot lever 16, an eccentric 51 on the stop 26 the zeroing lever 22 and an eccentric 52 on the pivot axis 44 the blocking lever 45.

Es versteht sich, daß der zu blockierende Sekundenanzeigetrieb nicht unbedingt der auf der Sekundenwelle sitzende Trieb sein muß, sondern auch ein diesem Trieb nahes Zahnrad in dem zu diesem Trieb führenden Räderwerk sein kann. Optimal ist es aber, wenn der auf der Sekundenwelle sitzende Trieb blockiert wird.It is understood that the second display gear to be blocked is not must necessarily be the impulse sitting on the second wave, but also a gear wheel close to this drive in the one leading to this drive Gear train can be. It is optimal, however, if the one on the second wave seated shoot is blocked.

Claims (36)

  1. Arrangement for setting the minute hand of a timepiece which has at least minute and second hands, having a setting stem which can be moved axially out of a normal position into a setting position, it being the case that, upon movement of the setting stem out of the normal position into the setting position, a zero setting drive of the second hand can be driven such that it moves the latter into its zero position, characterized in that, by virtue of the setting stem (1) being moved out of the normal position in the direction of the setting position, it is possible to initiate operation of a spring-force-operated drive by means of which the zero setting drive of the second hand (29) can be driven such that it moves the latter into its zero position.
  2. Arrangement according to Claim 1, characterized in that the setting stem (1) is a minute setting stem of the timepiece and the setting position is the minute setting position, in which, by virtue of rotation of the setting stem (1), the minute hand can be driven such that it can be moved manually.
  3. Arrangement according to one of the preceding claims, characterized in that, when the setting stem (1) is located in the setting position, the second hand (29) can be arrested in the zero position by the zero setting drive.
  4. Arrangement according to one of the preceding claims, characterized in that, by virtue of the setting stem (1), when the latter is moved axially out of the normal position in the direction of the setting position a lever can be driven such that it can be pivoted, about a spindle (3), out of a rest position into a position in which operation of the drive is initiated.
  5. Arrangement according to Claim 4, characterized in that the lever is a two-armed lever.
  6. Arrangement according to Claim 5, characterized in that the lever is an angle lever (4).
  7. Arrangement according to one of the preceding claims, characterized in that the zero setting drive is a cam-plate drive, of which the cam plate is arranged fixedly on the seconds stem (28), which bears the second hand (29), and, upon movement of the setting stem (1) in the direction of the setting position, can be driven by the spring-force-operated drive such that it can be moved into the zero position by a zero setting lever (22).
  8. Arrangement according to Claim 7, characterized in that the cam-plate drive is a heart-cam zero setting drive.
  9. Arrangement according to Claim 7, characterized in that the zero setting lever (22) is a lever which can be pivoted about a spindle (21) parallel to the seconds stem (28) and which acts on the radially peripheral lateral surface of the cam plate.
  10. Arrangement according to Claims 7 to 9, characterized in that the zero setting drive has a pivot lever (16) which can be pivoted, about a pivot spindle (17) parallel to the seconds stem (28), between a normal position and a zero setting position, which is forced into its zero setting position by spring action and which can act on the zero setting lever (22) such that it can be moved out of its normal position, in which it is spaced apart from the cam plate, against the cam plate.
  11. Arrangement according to one of the preceding claims, characterized in that, by virtue of the lever, a control plate (12) can be driven such that it can be pivoted about a spindle (13) parallel to the spindle (3) of the lever, it being the case that the control plate (12) has a control curve (14) which can act on an activation surface (15) of the pivot lever (16), and the pivot lever (16) can be moved out of its normal position into its zero setting position counter to the action of its spring.
  12. Arrangement according to Claim 11, characterized in that the control curve (14) and activation surface (15) are inclined with respect to one another at an angle at which self-locking is ruled out.
  13. Arrangement according to Claim 12, characterized in that the control curve (14) is an arc which is equidistant from the spindle (13) of the control plate (12), and the activation surface (15) is a slope which is inclined with respect to a radial line to the pivot spindle (17) of the pivot lever (16).
  14. Arrangement according to Claim 13, characterized in that the control curve (14) is an arc section which, in the rest position, butts against the slope of the pivot lever (16) and, in a zero setting position, is disengaged from the slope of the pivot lever (16).
  15. Arrangement according to Claims 11 to 14, characterized in that the control plate (12) can be pivoted freely relative to the lever over a certain distance.
  16. Arrangement according to Claim 15, characterized in that arranged on the lever is a stub (10) which engages in a groove (11) which belongs to the control plate (12) and extends over the certain distance in the radial direction in relation to the spindle (13) of the control plate (12).
  17. Arrangement according to Claim 15, characterized in that, depending on its pivot position, the lever is forced into its rest position or its hand setting position by the action of a catch spring (7).
  18. Arrangement according to one of the preceding claims, characterized in that by virtue of the setting stem (1), when the latter is moved out of the normal position into the setting position, a stopping device can be actuated for the purpose of stopping the movement mechanism of the timepiece.
  19. Arrangement according to Claim 18, characterized in that the stopping device can be actuated by the pivot lever (16).
  20. Arrangement according to one of the preceding claims, characterized in that the stopping device has a stopping lever (39) which can be driven such that it can be moved, by the pivot lever (16), between a normal position, in which it releases the balance wheel (42) of the timepiece, and a stopping position, in which it acts on the balance wheel (42) with a force fit.
  21. Arrangement according to Claim 20, characterized in that the pivot lever (16) can act on the stopping lever (39) such that it forces said stopping lever away from the balance wheel (42) in the radial direction counter to the force of a spring (40).
  22. Arrangement according to Claim 20, characterized in that that region of the stopping lever which acts on the balance wheel (42) with a force fit is a spring arm (41).
  23. Arrangement according to one of the preceding claims, characterized in that the seconds stem (28) is coupled to the movement mechanism of the timepiece with a force fit.
  24. Arrangement according to Claim 23, characterized in that arranged between the seconds stem (28) and a seconds-display drive mechanism (30) of the movement mechanism is a prestressed coupling spring (31) which butts against at least either the seconds stem (28) or the seconds-display drive mechanism (30) with a friction fit.
  25. Arrangement according to Claim 24, characterized in that the seconds-display drive mechanism (30) is mounted on the seconds stem (28) in a freely rotatable manner.
  26. Arrangement according to Claims 24 and 25, characterized in that the coupling spring (31) is arranged axially between the seconds stem (28) and seconds-display drive mechanism (30).
  27. Arrangement according to Claim 26, characterized in that the coupling spring (31) is a spring which has one or more radially directed spring arms (34), of which one spring-arm end is arranged on the seconds stem (28) and the second spring-arm end is supported on the end side of the seconds-display drive mechanism (30).
  28. Arrangement according to Claim 27, characterized in that the second spring-arm end is supported on a radially directed, flange-like widened section (36) of the seconds-display drive mechanism (30) .
  29. Arrangement according to one of the preceding claims, characterized in that the seconds-display drive mechanism (30) has a blocking device which can be actuated, by virtue of the setting stem (1) being moved in the direction of the setting position, such that the seconds-display drive mechanism (30) is blocked before the second hand (29) is moved into the zero position.
  30. Arrangement according to Claim 29, characterized in that the blocking device has a blocking lever (45) which can be pivoted about a pivot spindle (44) and which can act on a movable drive part of the seconds-display drive mechanism (30) with a force fit and/or form fit and/or friction fit.
  31. Arrangement according to Claim 30, characterized in that the movable drive part is the flange-like widened section (36) of the seconds-display drive mechanism (30), of which the radially peripheral lateral surface can have the blocking lever (45) acting on it.
  32. Arrangement according to Claim 31, characterized in that the radially peripheral lateral surface has a radially peripheral, approximately V-shaped groove (48) into which the blocking lever (45), which can be pivoted about the pivot spindle (44), parallel to the axis of rotation of the gear wheel (30), can be pivoted by way of an approximately correspondingly V-shaped blocking region (47).
  33. Arrangement according to one of the preceding claims, characterized in that the blocking lever (45) can be driven such that it can be pivoted by the pivot lever (16).
  34. Arrangement according to one of the preceding claims, characterized in that the pivot spindle (44) of the blocking lever (45) and the spindle (21) of the zero setting lever (22) are arranged axially with respect to one another, and the blocking engagement direction of the blocking lever (45) and the zero setting direction of the zero setting lever (22) are oriented in approximately the same way.
  35. Arrangement according to Claim 34, characterized in that the action of a blocking spring (46) forces the blocking lever (45) both in the blocking engagement direction and against the pivot lever (16), such that the latter is forced into the zero setting position.
  36. Arrangement according to Claim 35, characterized in that the action of the blocking spring (46) forces the blocking lever (45) into abutment against a stop of the pivot lever (16) or of the zero setting lever (22), it being the case that, when the blocking lever (45) and pivot lever (16) are respectively pivoted in the blocking engagement direction and the zero setting direction, the blocking lever (45) reaches the blocking position before the zero setting lever (22) reaches the zero setting position.
EP97909227A 1996-09-18 1997-09-02 Device for adjusting the minutes hand of a watch with at least a minutes and a seconds hand Expired - Lifetime EP0927383B1 (en)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
DE19638013 1996-09-18
DE19638013 1996-09-18
DE19725793 1997-06-18
DE19725793A DE19725793A1 (en) 1996-09-18 1997-06-18 Device for setting the minute hand of a watch having at least minute and second hands
PCT/EP1997/004767 WO1998012609A1 (en) 1996-09-18 1997-09-02 Device for adjusting the minutes hand of a watch with at least a minutes and a seconds hand

Publications (2)

Publication Number Publication Date
EP0927383A1 EP0927383A1 (en) 1999-07-07
EP0927383B1 true EP0927383B1 (en) 2000-05-31

Family

ID=26029486

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97909227A Expired - Lifetime EP0927383B1 (en) 1996-09-18 1997-09-02 Device for adjusting the minutes hand of a watch with at least a minutes and a seconds hand

Country Status (6)

Country Link
US (1) US6196713B1 (en)
EP (1) EP0927383B1 (en)
JP (1) JP3417953B2 (en)
AT (1) ATE193605T1 (en)
DE (1) DE59701823D1 (en)
WO (1) WO1998012609A1 (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10160287A1 (en) * 2001-12-07 2003-06-26 Lange Uhren Gmbh Tourbillon
DE602004019201D1 (en) * 2004-07-13 2009-03-12 Montres Breguet Sa Locking device for the hand position of a watch with a tourbillon
JP2006184238A (en) * 2004-12-28 2006-07-13 Seiko Instruments Inc Reset lever device and electronic timepiece equipped with the reset lever device
ATE530958T1 (en) * 2006-03-28 2011-11-15 Chopard Manufacture Sa RESETTING THE SECOND HAND IN A CLOCK
CH699029B1 (en) * 2007-02-08 2010-01-15 D Horlogerie Minerva Sa Fab Tourbillon for clock, has circular balance wheel which is pivoted around central balance wheel shaft and is connected with coil, where balance wheel shaft is mounted at upper end in stationary piston and at lower end in pivoted bogie
CH700302A2 (en) * 2009-01-21 2010-07-30 Montblanc Simplo Gmbh Chronograph.
DE102015203655B3 (en) * 2015-03-02 2016-08-18 Mechanische Werkstätten Wetzlar GmbH Apparatus and method for setting a minute hand and winding a watch
CH713811A1 (en) * 2017-05-22 2018-11-30 Officine Panerai Ag Watch movement with "stop second" function.
EP4047425A1 (en) 2021-02-19 2022-08-24 Montres Breguet S.A. Device for performing momentary stopping of operation of a mechanical watch

Family Cites Families (3)

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Publication number Priority date Publication date Assignee Title
CH57090A (en) * 1912-08-15 1912-12-16 Leonard Buchwalder Chronograph-counter
US3690058A (en) * 1969-09-25 1972-09-12 Suwa Seikosha Kk Electric or electronic timepiece
JPS5451867A (en) * 1977-09-30 1979-04-24 Citizen Watch Co Ltd Watch

Also Published As

Publication number Publication date
WO1998012609A1 (en) 1998-03-26
EP0927383A1 (en) 1999-07-07
DE59701823D1 (en) 2000-07-06
ATE193605T1 (en) 2000-06-15
JP3417953B2 (en) 2003-06-16
US6196713B1 (en) 2001-03-06
JP2000507708A (en) 2000-06-20

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