EP4202562B1 - Kupplungsvorrichtung für schaltrad eines uhrwerkmechanismus - Google Patents

Kupplungsvorrichtung für schaltrad eines uhrwerkmechanismus Download PDF

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Publication number
EP4202562B1
EP4202562B1 EP21216840.5A EP21216840A EP4202562B1 EP 4202562 B1 EP4202562 B1 EP 4202562B1 EP 21216840 A EP21216840 A EP 21216840A EP 4202562 B1 EP4202562 B1 EP 4202562B1
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EP
European Patent Office
Prior art keywords
mobile
intermediate wheel
coupling device
timepiece mechanism
toothed
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EP21216840.5A
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English (en)
French (fr)
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EP4202562A1 (de
Inventor
Didier VUILLEMIN
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Patek Philippe SA Geneve
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Patek Philippe SA Geneve
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Priority to EP21216840.5A priority Critical patent/EP4202562B1/de
Publication of EP4202562A1 publication Critical patent/EP4202562A1/de
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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
    • G04B5/00—Automatic winding up
    • G04B5/02—Automatic winding up by self-winding caused by the movement of the watch
    • G04B5/10—Automatic winding up by self-winding caused by the movement of the watch by oscillating weights the movement of which is not limited
    • G04B5/14—Automatic winding up by self-winding caused by the movement of the watch by oscillating weights the movement of which is not limited acting in both directions
    • 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
    • G04B13/00—Gearwork
    • G04B13/005—Gearwork where a revolution in both directions is changed into a revolution in one direction
    • 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
    • G04B27/004—Mechanical devices for setting the time indicating means having several simultaneous functions, e.g. stopping or starting the clockwork or the hands

Definitions

  • the present invention relates to a watch mechanism comprising a device for coupling a kinematic chain with a toothed mobile of the watch mechanism, the coupling device comprising a slider formed of a return and a mobile support on which the return is rotatable mounted.
  • the transmission is permanently connected to the kinematic chain, and the support is arranged movable between a first position in which the transmission engages with the toothed mobile and a second position in which the transmission is disengaged from the toothed mobile.
  • Coupled designates a connection established between two parts of a machine, generally two shafts, so that the rotation of one causes that of the other.
  • the expression “coupling device” designates a device allowing the aforementioned connection.
  • FIGS. 1A and 1B appended are taken from the work “Theory of Watchmaking”. These figures are plan views illustrating in a manner schematic of an automatic winding mechanism with reverse double clutch whose operation is as follows: whatever the direction of rotation of the oscillating mass 1, the mobiles 6 and 7 must rotate in the direction of the arrow. To do this, we use two sliding gears 3 and 4 which are mounted free to pivot on the same small mobile support 5.
  • the mobile support 5 is constituted by a rocker.
  • the rocker 5 is itself pivotally mounted around an axis which is oriented parallel to the axes of rotation of the two sliding gears and which is located halfway between them.
  • the mobile support is not a seesaw, but is arranged to slide between two extreme positions.
  • the references 3 and 4 constantly mesh with each other, while also being constantly connected to the pinion 2 of the oscillating mass 1, so that the movements of the oscillating mass cause the two sliding references to rotate in opposite directions. one from the other.
  • Winding mechanisms which include sliding coupling devices, like the one just described, are not without problems.
  • the return 3 must be constantly in engagement with the pinion 2 of the oscillating mass, while it moves with the rocker 5 which itself pivots around an axis which is not concentric with that of the return .
  • Another problem with these winding mechanisms is that the time required for the double reverse clutch to change from one configuration to the other is not negligible.
  • the winding mechanism of the Figures 1A and 1B also includes a pawl 8 which is recalled against the teeth of the mobile 6 by a spring 9. The function of the pawl 8 is to prevent the mobile 6 from going backwards during periods when none of the sliding gears 3 and 4 are in position. taken with him.
  • FIG. 2A is a schematic plan representation of a known rocker correction device which is intended to allow the correction of the time and date indications of a timepiece.
  • the device shown comprises a winding stem 11 movable axially between a winding position and a time setting position. It also includes a correction pinion 13 which is mounted coaxially with the rod, so as to rotate with the latter when it is in the time setting position.
  • the pinion 13 is engaged with a gear train which, in the example illustrated, is formed of two references 15 and 17 mounted free to rotate.
  • the device shown comprises a player 18 which is formed of a mobile support 19 and a correcting gear 21 pivotally mounted on the mobile support.
  • the mobile support 19 is constituted by a rocker whose pivot axis (referenced 16) coincides with the axis of rotation of the second return 17.
  • the correcting gear 21 is arranged so as to permanently mesh with the second gear 17, so that a kinematic chain connects the rod 11 to the correcting gear 21.
  • the tilt correction device of the Figure 2A also includes a selector intended to allow a user to control the player 18 to selectively engage the correcting gear 21 with a first mobile 23 or with a second mobile 25.
  • the correcting gear 21 meshes with the first mobile 23.
  • the configuration in which the correcting gear 21 meshes with the second mobile 25 is not shown.
  • the selector is essentially formed of a bolt 27, accessible from outside the timepiece, and of a positioning lever 29 which has two arms which extend on either side of the pivot axis of the lever.
  • the other arm of the lever 29 ends in a U-shaped fork arranged to receive and guide between its branches the axis 31 of the correcting gear 21. It will be understood that the U-shaped fork and the axis 31 together form a sort of articulation which connects the positioning lever 29 to the slider 18. Thanks to the presence of this articulated link, a user has the possibility of selectively meshing the correction gear 21 with the first mobile 23 or with the second mobile 25 by using the bolt 27 to tilt the positioning lever 29 in one direction or the other.
  • rocker correction devices like the one just described is not without problems.
  • the teeth of the correcting gear 21 come into abutment against the tops of the teeth of one of the mobiles 23 or 25 instead of being inserted between them. .
  • This situation has the effect of jamming the mechanism, the two teeth being incapable of interpenetrating, and the toothed mobiles therefore not being able to mesh with one another.
  • the player 18 thus blocks before reaching the end of its travel, this blocking is reflected up to the bolt 27 of the selector, which the user will not fail to feel. Such a situation may encourage the latter to force it at the risk of breaking one of the components of the mechanism.
  • An aim of the present invention is to remedy the disadvantages of the prior art which have just been explained.
  • the present invention achieves this and other goals by providing a watch mechanism comprising a sliding coupling device which conforms to the appended claim 1.
  • the coupling device comprises a bistable elastic bar held by its two ends between two anchoring points and working in buckling in a plane perpendicular to the axis of rotation of the return.
  • a section of the bistable elastic bar is also fixed to the mobile support, so that the position of the latter is slaved to that of the section of the bistable elastic bar.
  • buckling we mean here the bending and therefore the deformation of an elastic bar which is held by its ends between two anchoring points and whose undeformed length is greater than the distance between the two anchoring points.
  • Buckling is a deformation in a direction perpendicular to the line passing through the two anchor points.
  • An elastic bar which works in buckling in a given deformation plane has the possibility of bending in one direction or the other within this plane, so that a buckled elastic bar has two symmetrical stable configurations (i.e. is the reason why the elastic bar can be described as "bistable").
  • stable configuration we mean a configuration which is associated with a shape towards which the elastic bar always returns if it is moved away from it by a stress of sufficiently low amplitude.
  • a bistable elastic bar can pass almost instantly from one of its stable configurations to the other. It will therefore be understood that, thanks to the characteristics of the invention, it is possible to switch the coupling device almost instantly.
  • Another advantage of the invention is that the forces associated with the deformations of a bistable elastic bar have the effect of returning the latter towards its closest stable configuration. Under these conditions, when the bistable elastic bar is held away from its stable position because the teeth of the return abut against those of the toothed mobile, maintaining the slider away from its first position, the bistable elastic bar behaves like a spring which requests the return of the player against the teeth of the mobile. It is then sufficient for the teeth of the gear to pivot slightly relative to those of the toothed mobile to unlock the coupling device, the teeth of the gear then lowering spontaneously between those of the mobile.
  • Yet another advantage of the invention is that, because the position of the mobile support is determined by the bistable elastic bar, it is not necessary to provide a fixing of the player to the plate other than that which is provided at the level of the anchoring points of the bistable elastic blade.
  • the bistable elastic bar works in buckling around a median inflection point, the latter being kept fixed and a middle portion of the bistable elastic bar being free to pivot around an axis oriented parallel to the axis of rotation of the return and passing through the median inflection point.
  • the coupling device can, advantageously, comprise lateral supports or a pivoting member to hold the median inflection point in position.
  • the coupling device comprises a control lever arranged to cooperate with the bistable elastic bar so as to allow it to switch in one direction or the other between its two stable configurations.
  • the coupling device comprises a control member operable from outside the timepiece comprising the watch mechanism, the control member being mechanically connected to the control lever so as to allow a user to switch the coupling device.
  • return designates a toothed wheel which is arranged to mesh simultaneously with a driving toothed mobile and a driven toothed mobile between which it is interposed.
  • FIG. 2B is a plan view which schematically illustrates the principle according to which, in accordance with the invention, the position of the player of a time setting mechanism similar to that of the Figure 2A can be slaved to the position of a bistable elastic bar.
  • the coupling device of the time-setting mechanism shown comprises an elastic bar deformable in flexion (referenced 33', 33") and two ball joints which are anchored in the plate and arranged to hold the two ends of the elastic bar (only one of the two ball joints, referenced 35, is shown in the Figure 2B ).
  • the two ball joints 35 are arranged so as to allow each of the ends of the bistable elastic bar 33', 33" to pivot around an axis of rotation oriented parallel to the axis 31 of the correcting return 21.
  • the undeformed length of the bistable elastic bar 33', 33" is chosen to be greater than the distance separating the axes of rotation around which its ends are arranged to pivot.
  • 33' elastic bar, 33" is much easier to deform in flexion than in compression, its rectilinear configuration (not shown) is unstable.
  • the elastic bar 33', 33" is thus led to adopt a buckled configuration in a plane perpendicular to the axis of rotation of the correcting return 21, so as to reduce the stresses.
  • the curvature due to buckling can constitute a deformation of the elastic bar in one direction or the other, so that the elastic bar has two symmetrical fundamental stable configurations (the two fundamental stable configurations are represented in broken lines in the drawing where they are referenced respectively 33' and 33").
  • a section of the bistable elastic bar 33', 33" is integral with the mobile support 19, so that the position of the latter is slaved to that of the section of the bistable elastic bar.
  • the mobile support 19 can for example have on its lower face (which is not visible in the Figure 3B ) a pair of pins which project parallel to the pivot axis 16 of the mobile support, the pair of pins being engaged with the section of the bistable elastic bar 33', the latter passing between the two pins.
  • the mobile support 19 could for example have on its lower face a tenon which would project parallel to the pivot axis 16 of the mobile support, the tenon being inserted in an eyelet formed of material in a portion of the bistable elastic bar 33 '.
  • FIGS 3A and 3B are two partial plan views of a watch mechanism which integrates a coupling device according to a first embodiment of the invention.
  • the watch mechanism in question could, for example, be the calendar mechanism of a complicated timepiece.
  • the illustrated coupling device would serve for example to allow the indications of the date and day of the week to be selectively corrected.
  • the partial schematic views of the Figures 3A and 3B shows only the coupling device.
  • the application to a calendar is only one example among others, and that the coupling device shown lends itself to numerous applications even outside the field of correcting watch displays.
  • the coupling device shown comprises a slider (generally referenced 37) which is formed of a return 39 and a mobile support on which the return is rotatably mounted.
  • the reference 39 permanently meshes with a wheel 43 which is part of a kinematic chain (not shown) which comprises a watch mechanism.
  • the mobile support of the player 37 is constituted by a rocker 41 which is arranged to pivot around an axis referenced 45.
  • the rocker 41 is arranged movable between a first position in which the return 39 meshes with a first toothed mobile 47 so that the player achieves the coupling between the mobile 47 and the kinematic chain which includes the wheel 43 (in accordance with what is shown in the Figure 3A ) and a second position in which the reference 39 meshes with a second toothed mobile 49, so that the sliding wheel 37 achieves the coupling between the mobile 49 and the kinematic chain (in accordance with what is shown in the Figure 3B ). It can be noted that the reference 39 is disengaged from the second toothed mobile 49 when it meshes with the first toothed mobile 47, and vice versa.
  • the wheel 43 could be the driving wheel, the toothed wheels 47 and 49 then being two driven wheels, or that conversely, the mobile 43 could be a driven mobile, the toothed mobiles 47 and 49 then being two driving mobiles.
  • the coupling device which is the subject of this example also comprises a bistable elastic bar (referenced 51) which is arranged to work in buckling around a median inflection point.
  • the bistable elastic bar 51 can consist, for example, of two leaf springs of the same length which are arranged to extend in opposite directions from a rigid middle element ( referenced 53).
  • the middle element 53 is in the form of a disc pierced with a central hole (referenced 55).
  • the distal ends of the two leaf springs each end in a ball joint anchored in the plate (the two ball joints are referenced 57a and 57b). It will be understood that the central hole 55 of the central element is located at the midpoint of the bistable elastic bar 51.
  • the rigid middle element 53 is fixed on the rocker 41 concentrically with its pivot axis 45, so that the midpoint of the bistable elastic bar 51 (or in other words the central hole 55) is on the pivot axis 45 of the rocker 41. This arrangement allows the rigid middle element 53 to pivot with the rocker 41 around the midpoint.
  • the undeformed length of the bistable elastic bar 51 is chosen greater than the distance separating the two ball joints 57a, 57b.
  • the elastic bar 51 is much easier to deform in bending than in compression, its rectilinear configuration (not shown) is unstable.
  • the elastic bar 51 is thus led to adopt a buckled configuration in a plane which is perpendicular to the pivot axis 45 of the mobile support.
  • the bar is prevented from adopting a first-order buckled configuration. It therefore adopts a second-order buckling configuration characterized by the presence of a median inflection point.
  • the median inflection point corresponds to the midpoint of the bistable elastic bar 51. In the example illustrated, this point is also located on a straight line which passes through the two ends of the bistable elastic bar.
  • the elastic bar 51 can be in one or the other of two symmetrical stable configurations. These two stable configurations are illustrated respectively in the Figures 3A and 3B .
  • the coupling device which is the subject of this example also comprises a control lever 59 pivoted on an axis 60 and arranged so as to allow the bistable elastic bar 51 to be switched from one to the other of its two stable configurations.
  • one of the arms of the control lever 59 carries a pair of pins which project from its end perpendicular to the plane in which the bistable elastic bar 51 is buckled.
  • a section of the bistable elastic bar passes between the two pins, so that the cooperation between the pair of pins and said section creates an articulated link between the control lever 59 and the bistable elastic bar 51.
  • the switching of the bistable elastic bar also causes the slider 37 to pass from its first to its second position, so that the corrective return 39 s 'away from the first toothed mobile 47 and comes into engagement with the second toothed mobile 49 (in accordance with what is shown in Figure 3B ).
  • FIGS. 4A and 4B are partial plan diagrams of an automatic winding mechanism comprising a coupling device according to a second exemplary embodiment of the invention. As explained in more detail below, the coupling device illustrated in the Figures 4A and 4B is arranged to perform the function of reverse double clutch.
  • the automatic winding mechanism of this example includes an oscillating mass (referenced 72) and a toothed mobile (referenced 76) which must always be driven in the same direction, whatever the direction of rotation of the oscillating mass.
  • the coupling device of the automatic winding mechanism shown in the Figures 4A and 4B comprises a player (generally referenced 62) which is formed of a support mobile and two references (referenced respectively 64 and 66) which are mounted on the mobile support.
  • the references 64 and 66 constantly mesh with each other, while also being constantly connected to the pinion (referenced 74) of the oscillating mass 72. It will be understood from the above that the references 64 and 66 rotate in opposite directions. 'from each other when they are driven by the oscillating mass.
  • the mobile support of the player 62 is constituted by a rocker (referenced 68) which is itself pivotally mounted around an axis (referenced 70).
  • the axis 70 is oriented parallel to the axes of rotation of the two references 64 and 66 and it is arranged halfway between them.
  • the rocker 68 is arranged mobile between a first position in which the return 66 meshes with the toothed mobile 76 (in accordance with what is shown in the figure 4A ), the toothed mobile then being driven in the opposite direction to the direction of rotation of the oscillating mass 72, and a second position in which the gear 64 meshes with the toothed mobile 76 (in accordance with what is shown in the Figure 4B ), the toothed mobile then being driven in the direction of rotation of the oscillating mass 72. It can be noted that when the gear 64 meshes with the toothed mobile 76, the gear 66 is disengaged, and that conversely, when the gear 66 meshes with the toothed mobile 76, the return 64 is disengaged.
  • the coupling device which is the subject of this example also comprises a bistable elastic bar (referenced 78) which is arranged to work in buckling around a median inflection point.
  • the bistable elastic bar 78 can consist, for example, of two leaf springs of the same length which are arranged to extend in opposite directions from a rigid median element (referenced 80).
  • the middle element 80 is in the form of a disc pierced with a central hole.
  • the distal ends of the two leaf springs each end in a ball joint anchored in the plate. It will be understood that the central hole of the median element is located at the midpoint of the bistable elastic bar 78.
  • the rigid middle element 80 is fixed on the rocker 68 concentrically with its pivot axis 70, so that the midpoint of the bistable elastic bar (or in other words the central hole) is on the pivot axis 70. This arrangement allows the rigid middle element 80 to pivot with the rocker 68 around the midpoint of the bistable elastic bar 78.
  • the elastic bar 78 can adopt one or the other of two stable symmetrical configurations which are buckled in a plane which is perpendicular to the pivot axis 70 of the player 62. As the position of the midpoint of the bistable elastic bar 78 is kept fixed, the two stable buckled configurations are characterized by the presence of a median inflection point. These two stable configurations are illustrated respectively in the Figures 4A and 4B .
  • the pinion 74 exerts a force oriented tangentially on the teeth of the return 64. If the oscillating mass rotates clockwise, this force is oriented towards the top of the drawing. In this case, it generates a torque which tends to rotate the rocker 68 counterclockwise. As the middle portion 80 of the bistable elastic bar 78 is fixed on the rocker 68, the torque generated by the tangential force is also exerted on the bistable elastic bar. If the latter is in the configuration illustrated in the Figure 4A , the additional stress due to this torque has the effect of making it pass into the configuration illustrated in the figure 4B . Once the transition of the bistable elastic bar 78 from one stable configuration to another is initiated, the switching is almost instantaneous and it is then the bistable elastic bar which drives the player.
  • the oscillating mass 72 rotates counterclockwise, the tangential force exerted by the pinion 74 is oriented towards the bottom of the drawing. In this case, it generates a torque which tends to rotate the rocker 68 clockwise. If the bistable elastic bar is in the configuration shown in Figure 4B , the additional stress due to this torque has the effect of making it pass into the configuration illustrated in the figure 4A .
  • An advantage linked to the use of a bistable elastic bar working in buckling around a median inflection point is that its triggering threshold is lower. In other words, the force necessary to switch the bistable elastic bar is less than the force that would be necessary if the two stable configurations corresponded to first-order deformations.

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  • General Physics & Mathematics (AREA)
  • Transmission Devices (AREA)

Claims (10)

  1. Uhrwerkmechanismus, der eine Vorrichtung zur Kupplung einer kinematischen Kette mit einem gezahnten Drehteil (23, 25; 47, 49; 76) des Uhrwerkmechanismus umfasst, wobei die Kupplungsvorrichtung ein Zeigerstellrad (21; 39; 64, 66) und eine bewegliche Stütze (19; 41; 68) umfasst, an der das Zeigerstellrad drehbar gelagert ist, wobei das Zeigerstellrad Teil der kinematischen Kette ist und ständig mit einem anderen Element (17; 43; 74) verbunden ist, das ebenfalls Teil dieser letzteren ist, und die Stütze (19; 41; 68) zwischen einer ersten Position, in der das Zeigerstellrad (21; 39; 64; 66) mit dem gezahnten Drehteil (23, 25; 47, 49; 76) ineinandergreift, und einer zweiten Position beweglich eingerichtet ist, in der das Zeigerstellrad aus dem gezahnten Drehteil ausgekuppelt ist; dadurch gekennzeichnet, dass
    die Kupplungsvorrichtung einen bistabilen elastischen Stab (33', 33"; 51; 78) umfasst, der an seinen zwei Enden zwischen zwei Verankerungspunkten (35; 57a, 57b) gehalten wird und durch Knickung in einer Ebene senkrecht zur Drehachse (31) des Zeigerstellrads (21; 39; 64, 66) wirkt, und dadurch, dass ein Teilstück des bistabilen elastischen Stabs (33', 33"; 51; 78) fest mit der beweglichen Stütze (19; 41; 68) verbunden ist, derart dass die Position dieser letzteren auf diejenige des Teilstücks des bistabilen elastischen Stabs geregelt wird.
  2. Uhrwerkmechanismus nach Anspruch 1, dadurch gekennzeichnet, dass der bistabile elastische Stab (51; 78) durch Knickung um einen mittleren Biegungspunkt wirkt, wobei die Position dieses letzteren fest gehalten wird und ein mittlerer Abschnitt (53; 80) des bistabilen elastischen Stabs frei ist, konzentrisch zu einer Achse (45; 70) zu schwenken, die parallel zur Drehachse des Zeigerstellrads (39; 64, 66) ist und durch den mittleren Biegungspunkt verläuft.
  3. Uhrwerkmechanismus nach Anspruch 2, dadurch gekennzeichnet, dass die Kupplungsvorrichtung seitliche Auflagen oder ein Schwenkorgan (45, 41; 70, 68) zum Halten des mittleren Biegungspunkts an der Position umfasst.
  4. Uhrwerkmechanismus nach Anspruch 2 oder 3, dadurch gekennzeichnet, dass das Teilstück des bistabilen elastischen Stabs (51; 78), das an der beweglichen Stütze (41; 68) befestigt ist, dem mittleren Abschnitt (53; 80) entspricht, derart dass die Stütze um die Achse (45, 70) schwenkt, die durch den mittleren Biegungspunkt verläuft, wenn der bistabile elastische Stab durch Knickung wirkt.
  5. Uhrwerkmechanismus nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die bewegliche Stütze (68), an der das Zeigerstellrad (64, 66) montiert ist, unter der Wirkung einer Mitnahmekraft, die von dem anderen Element (74) tangential auf die Zahnung des Zeigerstellrads in eine Richtung oder die andere ausgeübt wird, von ihrer ersten in ihre zweite Position übergeht oder umgekehrt.
  6. Uhrwerkmechanismus nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, dass die Kupplungsvorrichtung einen Steuerungshebel (29; 59) umfasst, der dazu gestaltet ist, derart mit dem bistabilen elastischen Stab (33', 33"; 51) zusammenzuwirken, dass bewirkt wird, dass die bewegliche Stütze (19; 41), an der das Zeigerstellrad (21; 39) montiert ist, von ihrer ersten in ihre zweite Position oder umgekehrt übergeht.
  7. Uhrwerkmechanismus nach Anspruch 6, dadurch gekennzeichnet, dass die Kupplungsvorrichtung ein Steuerorgan (27) umfasst, das von außerhalb einer Uhr betätigt werden kann, die den Uhrwerkmechanismus umfasst, wobei das Steuerorgan derart kinematisch mit dem Steuerhebel (29; 59) verbunden ist, dass es einem Benutzer ermöglicht wird, zu bewirken, dass die bewegliche Stütze (19, 41), an der das Zeigerstellrad (21; 39) montiert ist, von ihrer ersten in ihre zweite Position oder umgekehrt übergeht.
  8. Uhrwerkmechanismus nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass das gezahnte Drehteil ein erstes gezahntes Drehteil (23, 47) ist, und dadurch, dass das Zeigerstellrad (21; 39) mit einem zweiten gezahnten Drehteil (25; 49) ineinandergreift, wenn die bewegliche Stütze (19, 41) sich in der zweiten Position befindet.
  9. Uhrwerkmechanismus nach Anspruch 8, dadurch gekennzeichnet, dass das Zeigerstellrad (21, 39) aus dem zweiten gezahnten Drehteil (25; 49) ausgekuppelt ist, wenn die bewegliche Stütze (19; 41) sich in der ersten Position befindet.
  10. Uhrwerkmechanismus nach einem der Ansprüche 1 bis 7, dadurch gekennzeichnet, dass das Zeigerstellrad ein erstes Zeigerstellrad (64) ist, und dadurch, dass er ein zweites Zeigerstellrad (66) umfasst, das derart drehbar an der beweglichen Stütze (68) gelagert ist, dass es mit dem ersten Zeigerstellrad (64) ineinandergreift, wobei das zweite Zeigerstellrad (66) dazu gestaltet ist, mit dem gezahnten Drehteil (76) ineinanderzugreifen, wenn die bewegliche Stütze (68) sich in der zweiten Position befindet, und aus dem gezahnten Drehteil (76) ausgekuppelt zu werden, wenn die bewegliche Stütze (68) sich in der ersten Position befindet.
EP21216840.5A 2021-12-22 2021-12-22 Kupplungsvorrichtung für schaltrad eines uhrwerkmechanismus Active EP4202562B1 (de)

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EP21216840.5A EP4202562B1 (de) 2021-12-22 2021-12-22 Kupplungsvorrichtung für schaltrad eines uhrwerkmechanismus

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EP4202562B1 true EP4202562B1 (de) 2024-08-07

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Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1029808A (fr) * 1950-08-22 1953-06-08 Bulova Watch Co Inc Montre à remontage automatique par masse oscillante
EP3486733B1 (de) 2017-11-20 2020-03-25 Patek Philippe SA Genève Steuervorrichtung für uhr, die ein schaltrad umfasst
CH716526A2 (fr) * 2019-08-26 2021-02-26 Blancpain Sa Rouage d'horlogerie pour débrayer un train d'engrenage.

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