Nothing Special   »   [go: up one dir, main page]

EP4421567A1 - Auslösemechanismus eines uhrwerksmechanismus und uhr mit solch einem auslösemechanismus - Google Patents

Auslösemechanismus eines uhrwerksmechanismus und uhr mit solch einem auslösemechanismus Download PDF

Info

Publication number
EP4421567A1
EP4421567A1 EP23157857.6A EP23157857A EP4421567A1 EP 4421567 A1 EP4421567 A1 EP 4421567A1 EP 23157857 A EP23157857 A EP 23157857A EP 4421567 A1 EP4421567 A1 EP 4421567A1
Authority
EP
European Patent Office
Prior art keywords
trigger
wheel
cam
pilot
rotation
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
EP23157857.6A
Other languages
English (en)
French (fr)
Inventor
Laurent CALAME
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Manufacture dHorlogerie Audemars Piguet SA
Original Assignee
Manufacture dHorlogerie Audemars Piguet SA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Manufacture dHorlogerie Audemars Piguet SA filed Critical Manufacture dHorlogerie Audemars Piguet SA
Priority to EP23157857.6A priority Critical patent/EP4421567A1/de
Priority to PCT/EP2024/053608 priority patent/WO2024175422A1/fr
Publication of EP4421567A1 publication Critical patent/EP4421567A1/de
Pending legal-status Critical Current

Links

Images

Classifications

    • G—PHYSICS
    • G04—HOROLOGY
    • G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
    • G04B19/00—Indicating the time by visual means
    • G04B19/22—Arrangements for indicating different local apparent times; Universal time pieces
    • 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
    • G04B27/005—Mechanical devices for setting the time indicating means stepwise or on determined values

Definitions

  • the present invention relates to a trigger mechanism of a clockwork mechanism arranged to perform a function.
  • the present invention also relates to a timepiece comprising such a trigger mechanism.
  • the publication CH 717672 describes a mechanism for enabling the triggering of an animation disk, representing for example a shooting star.
  • the control member is a ratchet wheel of a barrel of a watch movement driven in rotation at least by means of an oscillating weight and possibly also by means of an operating member actuated by a user.
  • the triggering mechanism being managed essentially by the ratchet wheel of the barrel which imposes a substantially constant torque, the triggering mechanism is systematically triggered to start the animation.
  • the document CH 717672 does not provide any information on the consequences on the triggering of the animation or on the mechanism in the event that a user wishes to trigger the animation at will by operating the operating member by applying insufficient or too great a force.
  • clock trigger mechanisms based on other constructions and which are configured to be able to manage the application of insufficient force to the control member by having a functionality called "all or nothing". This means that the action linked to the trigger mechanism is only triggered if the user applies sufficient force to the control or operating member.
  • Such "all or nothing” mechanisms are described for example in the documents EP 1959317 And CH 3873 .
  • “All or nothing” mechanisms are typically based on ratchet systems whose operation is not always optimal. In addition, these mechanisms do not allow the application of too much force to the control organ to be managed.
  • Clock trigger mechanisms are also known which are configured to be able to manage the application to the control member by the user of a very significant force by having a device guaranteeing a constant output torque of the trigger mechanism. Such mechanisms are described for example in the documents EP 1960844 And CH 717359 . However, these mechanisms do not allow the application of too low a force to the control organ to be managed.
  • the present invention aims to remedy these drawbacks by proposing a triggering mechanism for a clockwork mechanism which makes it possible to manage both the application of insufficient force to the control member and of excessive force.
  • the trigger mechanism according to the invention is of the "all or nothing" type by authorizing the rotation of the trigger output wheel which will allow the watch mechanism to perform its function only if the force applied to the control member is sufficient to cause a rotation of the trigger cam and therefore the rotation of the trigger pilot wheel necessary for the actuation of the pilot device to release the trigger output wheel in order to perform the function.
  • the trigger mechanism according to the invention advantageously constitutes an intermediate device which makes it possible to manage the force applied to the control member by standardizing the torque to be transmitted to the associated watch mechanism to perform its function.
  • the watch mechanism receives from the trigger output wheel a constant torque linked to the elastic member, independent of the force applied to the control member, in particular a very significant force.
  • the trigger rocker is provided with a return spring arranged so that, when the trigger rocker reads the rotating trigger cam, storing and restoring said energy allowing said trigger rocker to exert the second rotational drive force on the trigger cam.
  • the trigger cam has n branches defining n peaks and n troughs, each branch having a rising edge and a falling edge.
  • the return spring of the trigger lever is arranged to store said energy when the trigger lever reads a rising edge of the rotating trigger cam, and to, when the trigger lever reads a falling edge of the rotating trigger cam, restore said energy allowing the trigger lever to exert the second rotational drive force on the trigger cam.
  • control member is a control rocker which has a hook arranged to rotate said trigger cam, preferably by gripping a tip of one of its branches.
  • the trigger cam is coaxial and rotationally fixed to the trigger pilot wheel. This makes it possible to reduce the size of the mechanism.
  • the trigger rocker comprises a roller arranged to read the trigger cam.
  • a roller makes it possible to reduce friction and to facilitate reading of the trigger cam.
  • the elastic member is a spiral spring.
  • the piloting device comprises a pilot pinion free to rotate and kinematically linked to the trigger piloting wheel, a pilot cam secured to said pilot pinion, a pilot fork mounted so as to be mobile in rotation and arranged to cooperate with the pilot cam, a pilot anchor secured in rotation to the piloting fork, said pilot anchor comprising two arms arranged to be able to alternately block a locking finger integral in rotation with a locking pinion arranged to be kinematically linked to the trigger output wheel.
  • the clock mechanism is a correction mechanism of at least one display member, for example a correction mechanism of a display member linked to a GMT time.
  • the present invention also relates to a timepiece comprising a watch mechanism arranged to perform a function and a triggering mechanism for said watch mechanism as defined above.
  • the present invention relates to a trigger mechanism of a timepiece mechanism.
  • said timepiece mechanism is a correction mechanism of a display member linked to a GMT time provided in a timepiece, the elements useful for understanding the invention of which are shown in the figure 1 .
  • Said timepiece comprises in a known manner a cannon pinion 1 which integrally carries the minute display member (such as a hand, not shown), and which is kinematically linked to the drive member (not shown) of the timepiece, such as a barrel.
  • the cannon pinion 1 is driven via the drive member and in turn drives, via a drive wheel set 2 corresponding to the timer wheel set, the hour wheel (not shown) which is arranged to drive a first local time display member HT (such as a hand, not shown) in cooperation with the minute display member.
  • the timepiece also includes a second display organ, symbolically represented by the reference 4, such as a hand, arranged to be able to display a GMT time of a time zone different from that of the local time HT.
  • a second display organ symbolically represented by the reference 4
  • the reference 4 such as a hand
  • the timepiece also includes a correction mechanism 6 of the second display member 4 arranged to be able to correct the GMT time independently of the local time HT.
  • the timepiece also comprises a drive mechanism 8 for the second display member 4 which comprises a differential gear 10 and a phase shifting wheel 12.
  • said differential gear 10 comprises at least one upper differential wheel 14 arranged to be kinematically connected to the second display member 4, a lower differential wheel 16 arranged to be kinematically connected to the drive wheel 2 of the first display member (timer wheel), via the phase shift wheel 12 as described below, and an input 18 arranged to be kinematically connected to the correction mechanism 6 of the second display member 4.
  • the differential gear 10 comprises a differential block 20 mounted to rotate freely, preferably on two half-shafts 22a, 22b pivotally mounted on the frame of the part and secured respectively to the upper differential wheel set 14 and the lower differential wheel set 16.
  • Said differential block 20 carries at least a first idler pinion 24a arranged to mesh with a pinion 26a secured to the half-shaft 22a of the upper differential wheel set 14 and a second idler pinion 24b arranged to mesh with a pinion 26b secured to the half-shaft 22b of the lower differential wheel set 16, said idler pinions 24a and 24b being mounted to rotate freely on the differential block 20.
  • the differential block 20 is also integral with a wheel constituting the input 18 of the differential gear 10 and arranged to be kinematically linked to the trigger mechanism as will be described below.
  • the phase shift wheel 12 comprises a lower phase shift wheel 28 arranged to be kinematically connected to the drive wheel 2 of the first display member, and more particularly to the timer wheel 2a.
  • the lower phase shift wheel 28 is also arranged to be kinematically connected to the lower differential wheel 16 of the differential gear 10, for example by means of two stepped return pinions 30a, 30b secured to each other, the pinion 30a being arranged to cooperate with the lower phase shift wheel 28 and the pinion 30b being arranged to cooperate with the lower differential mobile 16, as shown in FIG. figure 1 .
  • the phase shift wheel 12 also comprises an upper phase shift wheel 32, coaxial with the lower phase shift wheel 28, and arranged to drive the second display member 4 and to be kinematically linked to the upper differential wheel 14 of the differential gear 10.
  • the upper phase shift wheel 32 is also kinematically linked to the lower phase shift wheel 28 in a disengageable manner so that said upper phase shift wheel 32 is uncoupled from the lower phase shift wheel 28 during a correction of the GMT time independently of the local time HT by the correction mechanism 6 while allowing, after correction, a repositioning of the second display member 4 synchronized with the positioning of the first display member.
  • the upper phase shift wheel 32 is kinematically connected to the lower phase shift wheel 28 in a disengageable manner by means of a phase cam 34 secured to the lower phase shift wheel 28, coaxial with said lower phase shift wheel 28, and a hammer 36 provided with a phase shift spring 38 carried by the upper phase shift wheel 32, said hammer 36 being arranged to cooperate with said phase cam 34.
  • the hammer 36 is pivotally mounted on the upper phase shift wheel 32 by means of a pivot axis mounted integrally on said upper phase shift wheel 32.
  • the hammer 36 comprises a first end 36a provided with a roller 40 cooperating with the phasing cam 34 to facilitate its reading, and a second end 36b which cooperates with a first end 38a of the phase shift spring 38.
  • the second end 38b of the phase shift spring 38 is pivotally mounted on the upper phase shift wheel 32 by means of a pivot axis mounted integrally on said upper phase shift wheel 32.
  • the timepiece may also include a display device 42 shown in the figure 6 , arranged to display the difference between local HT time and GMT time.
  • Said display device 42 comprises a fixed dial 44, an indicator 46 fixedly mounted on the dial 44 and arranged to define the local time HT as a reference, and a third display member 48 mounted to move in rotation relative to said dial 44 in order to be able to move it, the position of the third display member 48 on the dial 44 relative to the indicator 46 indicating the difference between the local time HT and the GMT time.
  • the third display member 48 is fixed.
  • the dial 44 comprises graduations to indicate, by means of the third display member 48, the time difference between the local time HT and the GMT time.
  • the fixed dial 44 can be graduated from 0 to -12 on one side of the 0 indicated by the fixed indicator 46 and from 0 to +12 on the other side of the 0, making it possible to directly indicate to the user the time difference from 0h to 12h in one direction or the other by means of the third display member 48.
  • the third display organ 48 indicates a shift of - 11h on the dial 44 informing the user that the local time HT is 11h ahead of the GMT time.
  • Said display device 42 may also comprise a day/night disk 50 comprising two angular sectors 52 and 54 extending on either side of an axis of symmetry of the disk over 180°.
  • the disk 50 is driven clockwise by the clockwork movement of the timepiece by one revolution per 24 hours.
  • the position of the indicator 46 and the third display member 48 above the day/night disk 50 makes it possible to indicate at a given moment whether it is day or night respectively at local time HT and at GMT time.
  • Such a display device 42 is described in the application. CH 2021/0070690 of the applicant.
  • the display device 42 To enable a correction of the difference between the local time HT and the displayed GMT time during a correction of the second display member 4 of the GMT time, i.e. a correction of the third display member 48, independently of the local time HT, the display device 42, and more in particular said third display member 48 is kinematically linked to the trigger mechanism, as will be detailed below, in order to be able to be corrected by the correction mechanism 6 of the second display member 4.
  • the correction mechanism 6 of the second display member 4 comprises a trigger mechanism 56.
  • said trigger mechanism 56 comprises a control device comprising a control member 58 intended to be accessible to a user, for example via a push button, to perform the function of the associated clock mechanism, here the function of correcting the second display member 4 of the GMT time and, if present, of the third display member 48 indicating the time difference between the local time HT and the GMT time, independently of the local time HT.
  • control member 58 is a control rocker pivotally mounted on the frame and equipped with its return spring 60.
  • the control rocker is set in motion by the user via, for example, a push button (not shown).
  • the trigger mechanism 56 also includes a trigger mobile 62, visible in particular on the figure 7 , arranged to be mounted so as to be mobile in rotation on the frame of the part.
  • the trigger mobile 62 comprises a trigger member 64 intended to be driven in rotation, directly or indirectly, by the control member 58, a trigger pilot wheel 66 kinematically linked to the trigger member 64 and integral in rotation with a first end of an elastic member 68, and a trigger output wheel 70 integral in rotation with a second end of the elastic member 68 and kinematically linked to an element of the watch mechanism to be triggered.
  • the elastic member is a spiral spring.
  • the trigger output wheel 70 is kinematically linked to the wheel constituting the input 18 of the differential gear 10 to allow the correction of the second display member 4 of the time GMT independently of the local time HT. If the third display member 48 is present, the trigger output wheel 70 is also kinematically linked said third display member 48 to allow the correction of said third display member 48 at the same time as the correction of the second display member 4.
  • the trigger mechanism 56 also includes a pilot device 72, shown in the Figures 9 and 10 , kinematically linked to the trigger pilot wheel 66 and arranged to block or release the trigger output wheel 70 depending on the rotation of said trigger pilot wheel 66.
  • a pilot device 72 shown in the Figures 9 and 10 , kinematically linked to the trigger pilot wheel 66 and arranged to block or release the trigger output wheel 70 depending on the rotation of said trigger pilot wheel 66.
  • the piloting device 72 comprises a piloting pinion 74 mounted freely in rotation on the frame and arranged to be kinematically linked to the trigger piloting wheel 66.
  • the control device 72 also comprises a control cam 76 secured to said control pinion 74 and constituting an eccentric member relative to the control pinion 74, more particularly relative to its axis of rotation.
  • the control device 72 further comprises a control fork 78 mounted to rotate on the frame about an axis 80 and arranged to cooperate with said control cam 76 in order to be pivoted alternately in one direction or the other.
  • the control device 72 also comprises a control anchor 82 mounted to rotate on the axis 80 and arranged to be integral in rotation with the control fork 78 by means, for example, of a tenon 84 integral with the control anchor 82 and the control fork 78.
  • Said control anchor 82 comprising two arms 82a, 82b arranged to be able to alternately block a blocking finger 86 integral in rotation with a blocking pinion 88 mounted free in rotation on the frame and arranged to be kinematically linked to the trigger output wheel 70.
  • the blocking finger 86 is blocked by one of the arms 82a, 82b, the blocking pinion 88 is blocked and prevents the rotation of the trigger output wheel 70.
  • the control anchor 82 pivots, releasing the blocking finger 86, the blocking pinion 88 is free in rotation and releases the trigger output wheel 70 to allow its rotation under the effect of the energy released by the elastic member 68.
  • pilot pinion 74, the locking finger 86 and the locking pinion 88 are aligned along the same axis.
  • the trigger member 64 is a rotary trigger cam.
  • said trigger cam 64 has n branches 64a defining n peaks and n troughs.
  • each of the branches 64a comprises a rising edge and a falling edge.
  • the trigger cam comprises four branches 64a.
  • the trigger cam 64 is coaxial and integral in rotation with the trigger pilot wheel 66.
  • the trigger cam 64 can be made integral with the trigger pilot wheel 66 by means, for example, of a cylindrical counterform 90 integral with the trigger pilot wheel 66 and coaxial with the trigger cam 64 and the trigger pilot wheel 66.
  • the counterform 90 comprises four lugs 90a, as shown in FIG. figure 8 and is arranged to fit into a corresponding opening 64b provided in the center of the trigger cam 64, the lugs 90a bearing against the inner wall of the opening 64b.
  • the trigger output wheel 70 is mounted to rotate freely on the counterform 90, between the trigger cam 64 and the trigger pilot wheel 66, coaxially with said trigger cam 64 and said trigger pilot wheel 66.
  • the spiral spring 68 is positioned between the trigger output wheel 70 and the trigger pilot wheel 66, one of its ends being secured to the trigger output wheel 70, its other end being secured to the trigger pilot wheel 66.
  • control member 58 here the control rocker
  • the control rocker is arranged to exert on said trigger cam 64, directly or indirectly, a first rotational drive force making it possible to initiate the rotation of said trigger cam 64.
  • the control rocker advantageously has, on the side of its end which cooperates with the trigger cam 64, an arm 92, visible in the figures 1 And 11 in particular, pivotally mounted on said control rocker 58 and terminated at its free end by a hook 92a (cf. Figure 11 ).
  • Said hook 92a is arranged to drive said trigger cam 64 in rotation, for example by gripping a tip of one of its branches 64a.
  • the hook 92a more particularly makes it possible to exert on said trigger cam 64 a first driving force making it possible to initiate the rotation of said trigger cam 64.
  • the return spring 96 is arranged to store said energy when the trigger rocker 94 reads a rising edge of a branch 64a' of the rotating trigger cam, and to, when the trigger rocker 94 reads the falling edge of the branch 64a' of the rotating trigger cam 64, restore this energy allowing to the trigger rocker 94 to exert on said trigger cam 64 the second rotational driving force.
  • the trigger rocker 94 advantageously has, on the side of its end which cooperates with the trigger cam 64, an arm 98, visible on the figures 1 And 11 in particular, having at its free end a roller 100 (cf. figure 11 ) constituting the reading member arranged to read the trigger cam 64 by following the rising edge and the falling edge of each branch 64a.
  • the various elements of the trigger mechanism 56 are sized and configured so that the function linked to the watch mechanism is only performed when said control lever 58 exerts on the trigger cam 64 a first necessary and sufficient rotational drive force at least equal to a predetermined threshold set by the construction of the elements of the trigger mechanism 56, and in particular dependent on the force of the return spring 96.
  • the rotation of said trigger cam 64 is such that, when the trigger lever 94 reads a rising edge of one of the branches 64a of the rotating trigger cam 64, the return spring 96 of the trigger lever 94 is armed and stores energy.
  • the trigger mechanism 56 is in the rest state shown in the figure 11 .
  • the trigger mechanism 56 is such that the roller 100 of the trigger lever 98 is positioned in a stable position of rest in a hollow at the foot of a rising flank towards the top of one of the branches 64a' of the trigger cam 64.
  • the hook 92a of the control lever is preferably positioned at the top of one of the branches 64a of the trigger cam 64.
  • the blocking finger 86 is blocked by the arm 82a of the pilot anchor 82 of the pilot device 72 so that the trigger output wheel 70 is blocked in rotation, retained by the blocking pinion 88.
  • the driving member of the timepiece drives the cannon pinion 1 which in turn drives the minute display member as well as the hour wheel, via the timer wheel 2.
  • the hour wheel drives the first local time display member HT in a standard manner.
  • the timer wheel 2a also drives the lower phase shift wheel 28 of the phase shift wheel 8, as well as the upper phase shift wheel 32, then coupled to the lower phase shift wheel 28 by the phasing cam 34/hammer 36 assembly.
  • the second GMT time display member 4 is then driven in a synchronized manner with the first local time display member HT.
  • the lower phase shift wheel 28 continuously drives the lower differential wheel 16 of the differential gear 10 via two stepped return pinions 30a, 30b and the upper phase shift wheel 32 continuously drives the upper differential wheel 14 of the differential gear 10.
  • the input wheel 18 of the differential gear 10 being blocked by the trigger mechanism 56, the differential block 20 does not rotate.
  • the return pinions 24a and 24b are also continuously driven via the pinions 26a, 26b secured to their respective half-axis 22a, 22b.
  • the trigger output wheel 70 being blocked, the third display member 48 remains fixed.
  • the user actuates the control member 58, here the control rocker, via for example a push button of the control device according to a force F shown in the figure. figure 12 by an arrow.
  • the control lever pivots, its hook 92a grasps the top of the branch 64a of the trigger cam 64 to initiate and rotate said trigger cam 64.
  • the roller 100 of the trigger lever 94 reads said trigger cam 64 by following the rising edge of another branch 64a' of the trigger cam 64, which has the effect of loading the return spring 96 of the trigger lever 94.
  • the rotation of the trigger cam 64 drives the rotation of the trigger pilot wheel 66 which is integral with it, which has the effect of loading the trigger spring 68 which can potentially be pre-loaded, the trigger output wheel 70 still being blocked by the pilot device 72.
  • the elements of the trigger mechanism 56 are dimensioned so that the rotation of the trigger pilot wheel 66 causes a rotation of the pilot pinion 74 and its pilot cam 76, and therefore of the pilot fork 78 and the pilot anchor 82 but not sufficiently for the arm 82a to release the locking finger 86, as shown in the figure 12 .
  • the roller 100 of the trigger lever 94 continues to read the trigger cam 64, which continues its rotation, passing the top of the branch 64a' and following the descending edge of said branch 64a' of the trigger cam 64, so that the return spring 96 of the trigger lever 94 redistributes the stored energy to the trigger lever 94 which becomes the motor of the trigger cam 64.
  • the trigger spring 68 continues to arm itself.
  • the elements of the trigger mechanism 56 are dimensioned so that when the roller 100 descends along the flank of the trigger cam 64, the rotation of said trigger cam 64 and of the wheel Trigger drive 66 has caused sufficient rotation of the drive pinion 74, its drive cam 76, the drive fork 78 and the drive anchor 82 so that the arm 82a has pivoted sufficiently to disengage from the locking finger 86 and release it, as shown in the figure 13 .
  • the locking pinion 88 With the locking finger 86 released, the locking pinion 88 is free to pivot so that it no longer blocks the trigger output wheel 70 which is released. Said trigger output wheel 70 is then driven in rotation under the effect of the energy stored by the trigger spring 68.
  • the rotation of the released trigger output wheel 70 directly drives the third display member 48 kinematically linked to said trigger output wheel 70 for its correction, in order to move the third display member 48 in steps until the desired time difference is displayed on the dial 44.
  • the rotational drive of the input wheel 18 of the differential gear 10 drives the rotation of the differential block 20 so that the return pinion 24a, respectively 24b, drives the rotation of the half-axis 22a, respectively 22b, via the pinion 26a, respectively 26b, and therefore the rotation of the upper differential wheel set 14 and the lower differential wheel set 16 respectively.
  • the lower differential wheel set 16 then constitutes a first output of the differential gear 10 kinematically linked to the lower phase shift wheel 28 of the phase shift wheel set 12 and to the timer wheel set 2.
  • the rotation of the lower differential wheel set 16 makes it possible to take up the gear play of the differential gear 10 up to the roadway 1 and then be blocked.
  • This blocking forces the upper differential wheel 14 to drive the upper phase shift wheel 32 by constituting the second output of the differential gear 10 kinematically linked to the upper phase shift wheel 32 of the phase shift wheel 12.
  • the rotation of the upper differential wheel causes the wheel to be disengaged.
  • upper phase shift wheel 32 of the lower phase shift wheel 28 by means of the phasing cam 34/hammer 36 assembly, the rotation of the upper phase shift wheel 32 causing the rotation of the second display member 4 for its correction.
  • the differential block 20 rotates in steps of an angle defined by the trigger cam 64 and its gear ratio with the trigger output wheel 70. These steps define the offset of the third display member 48 indicating here the time difference between the local time HT and the GMT time, and the phase shift angle of the phase shift wheel 12 to correct the second display member 4 of the GMT time.
  • the correction angle of the upper phase shift wheel 32 corresponds to a step of the phasing cam 34.
  • the correction mechanism 6 makes it possible to carry out a correction in steps of the second display member 4 of the GMT time, and simultaneously of the third display member 48 if it is present, independently of the local time HT, that is to say independently of the first display member of the local time HT and of the display member of the minutes.
  • the phasing cam 34/hammer 36 assembly of the phase shifting wheel set 12 makes it possible to precisely reposition the second display member 4 of the GMT time relative to the position of the first display member after each correction of said second display member 4. Indeed, by leaving a hollow of the phasing cam 34 to precisely reposition itself in the following hollow, the roller 40 of the hammer 36 mounted on the upper phase shifting wheel 32 of the phase shifting wheel set 12 is positioned so that the position of said second display member 4 of the GMT time remains perfectly synchronized with the position of the first display member of the local time HT relative to the position of the minute display member.
  • the phase shift wheel 12 also advantageously makes it possible to take up the play of the differential gear 10 to avoid too much play between the timer wheel 2 and the indication controlled by the upper phase shift wheel 32, here the second display member 4 of the GMT time.
  • the indication being controlled by the upper phase shift wheel 32 of the phase shift wheel 12 this also makes it possible to avoid passing torque continuously into the differential gear 10 to drive said indication.
  • the trigger rocker 94 continues its repositioning in the hollow of the trigger cam 64.
  • a rigid connection (with an eyelet and a pin for example) between the triggering pilot wheel 66 and the triggering output wheel 70.
  • control rocker finishes its movement (still under the effect of the user) until it comes against a stop (not illustrated) to no longer give energy to the trigger cam 64.
  • the locking finger 86 which has pivoted with the locking pinion 88 during the correction phase, comes into abutment on the other arm 82b of the pilot anchor 82 once the phase shift has been achieved.
  • the trigger output wheel 70 is again locked.
  • the locking of the locking finger 86 by the pilot anchor 82 is done alternately by the arm 82a and the arm 82b at each sufficient actuation of the control member 58 for the performance of the associated function.
  • the hook 92a of the control rocker repositions itself in the hollow behind the branch 64a of the trigger cam 64 (i.e. downstream of the branch 64a), ready to grasp the top of the next branch 64a', as shown in the figure. figure 14 .
  • the roller 100 of the trigger lever 94 returns to its stable rest position in the hollow behind the branch 64a'.
  • the various elements of the trigger mechanism 56 are sized and configured so that a first force, for driving the control rocker 58 in rotation, exerted on the trigger cam 64, greater than or equal to the predetermined threshold, generates a second rotational drive force exerted by the trigger rocker 94.
  • This second drive force makes it possible to obtain a necessary and sufficient rotation of said trigger cam 64 (and therefore of the associated trigger pilot wheel 66, of the pilot pinion 74, of its pilot cam 76, of the pilot fork 78 and of the pilot anchor 82) to release the blocking finger 86 and thus the trigger output wheel 70 in order to perform the function, here the correction by steps of the second display member 4 of the GMT time, and of the third display member 48 if it is present, independently of the local time HT.
  • the first rotational drive force exerted by the control rocker will be less than the predetermined threshold of the drive force causing a necessary and sufficient rotation of said trigger cam 64 to release the locking finger 86, so that the rotation of the pilot anchor 82 will not be sufficient to release the locking finger 86. Consequently, the trigger output wheel 70 will remain blocked and the function cannot be performed.
  • the rotation of the trigger cam 64 will be sufficient for the pilot anchor 82 to pivot sufficiently to release the locking finger 86 and thus the trigger output wheel 70 so as to perform the function.
  • the trigger mechanism of the invention is therefore of the "all or nothing" type by authorizing the rotation of the trigger output wheel 70 which will allow the watch mechanism to perform its function only if the force applied to the control member 58 is sufficient to cause a rotation of the trigger cam 64 and therefore the rotation of the trigger pilot wheel 66 necessary for the actuation of the pilot device 72 to release the trigger output wheel 70.
  • the trigger mechanism 56 advantageously constitutes an intermediate device that makes it possible to manage the force applied to the control member 58 by standardizing the torque to be transmitted to the watch mechanism to perform its function.
  • the watch mechanism receives from the trigger output wheel 70 a constant torque linked to the characteristics of the elastic member 68, independent of the force applied to the control member 58 by the user. In particular, even if the user applies a very significant force to the push button, he cannot give momentum to said watch mechanism.
  • the triggering mechanism according to the present invention makes it possible to manage both the application to the control member 58 of an insufficient force, by being of the “all or nothing” type, and of an excessively large force, by making it possible to carry out the “constant force” function.
  • the advantage of the trigger mechanism according to the present invention is that the user provides the necessary impulse to trigger the mechanism and that the mechanism itself then performs the function. Thus, the user cannot provide momentum to the correction mechanism, even if he presses the push button hard.
  • the use of the rotating locking finger 86 between two stops formed by the arms 82a, 82b of the pilot anchor 82 and the locking pinion 88 secured to the locking finger 86 makes it possible to precisely control the angles of rotation of the correction gear train when correcting the second display member 4 of the GMT time, and the third display member 48 if it is present, independently of the local time HT. This makes it possible to reinforce the precision of the repositioning of the second display member 4 of the GMT time and the third display member 48 if it is present, after their correction.
  • the example described above is related to a correction mechanism of a display member linked to a GMT time. It is obvious that the trigger mechanism according to the invention can be used in a timepiece mechanism arranged to perform another function, said timepiece mechanism being for example a mechanical animation arranged to be triggered on demand by the user and driven by the upper phase shift wheel 32 of the phase shift wheel 12.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Measurement Of Unknown Time Intervals (AREA)
EP23157857.6A 2023-02-21 2023-02-21 Auslösemechanismus eines uhrwerksmechanismus und uhr mit solch einem auslösemechanismus Pending EP4421567A1 (de)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP23157857.6A EP4421567A1 (de) 2023-02-21 2023-02-21 Auslösemechanismus eines uhrwerksmechanismus und uhr mit solch einem auslösemechanismus
PCT/EP2024/053608 WO2024175422A1 (fr) 2023-02-21 2024-02-13 Mecanisme de declenchement d'un mecanisme horloger et piece d'horlogerie comprenant un tel mecanisme de declenchement

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP23157857.6A EP4421567A1 (de) 2023-02-21 2023-02-21 Auslösemechanismus eines uhrwerksmechanismus und uhr mit solch einem auslösemechanismus

Publications (1)

Publication Number Publication Date
EP4421567A1 true EP4421567A1 (de) 2024-08-28

Family

ID=85321034

Family Applications (1)

Application Number Title Priority Date Filing Date
EP23157857.6A Pending EP4421567A1 (de) 2023-02-21 2023-02-21 Auslösemechanismus eines uhrwerksmechanismus und uhr mit solch einem auslösemechanismus

Country Status (2)

Country Link
EP (1) EP4421567A1 (de)
WO (1) WO2024175422A1 (de)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1959317A1 (de) 2007-02-14 2008-08-20 Maurice Lacroix SA Mechanismus zur umschaltbaren Übertragung
EP1960844A2 (de) 2005-12-09 2008-08-27 Glashütter Uhrenbetrieb GmbH Antriebsmechanismus für eine kalenderanzeige für eine uhr
EP2068210A2 (de) * 2007-12-04 2009-06-10 Chronode SA Auslösevorrichtung
CH713225B1 (fr) * 2016-12-14 2020-12-15 Richemont Int Sa Pièce d'horlogerie comportant un mécanisme à déclenchement programmable.
CH717359A1 (fr) 2020-04-29 2021-10-29 Van Cleef & Arpels SA Dispositif de déclenchement d'un mécanisme horloger.
CH717672A1 (fr) 2020-07-21 2022-01-31 Richemont Int Sa Mécanisme de déclenchement d'une animation pour pièce d'horlogerie ou de bijouterie.

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH3873A (fr) 1891-05-26 1892-01-15 Giuseppe Citelli Nouvelle montre à répétition

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1960844A2 (de) 2005-12-09 2008-08-27 Glashütter Uhrenbetrieb GmbH Antriebsmechanismus für eine kalenderanzeige für eine uhr
EP1959317A1 (de) 2007-02-14 2008-08-20 Maurice Lacroix SA Mechanismus zur umschaltbaren Übertragung
EP2068210A2 (de) * 2007-12-04 2009-06-10 Chronode SA Auslösevorrichtung
CH713225B1 (fr) * 2016-12-14 2020-12-15 Richemont Int Sa Pièce d'horlogerie comportant un mécanisme à déclenchement programmable.
CH717359A1 (fr) 2020-04-29 2021-10-29 Van Cleef & Arpels SA Dispositif de déclenchement d'un mécanisme horloger.
CH717672A1 (fr) 2020-07-21 2022-01-31 Richemont Int Sa Mécanisme de déclenchement d'une animation pour pièce d'horlogerie ou de bijouterie.

Also Published As

Publication number Publication date
WO2024175422A1 (fr) 2024-08-29

Similar Documents

Publication Publication Date Title
EP2453322B1 (de) Schneller Korrektor einer Zeitgrößenanzeige für Uhr
EP2073076B1 (de) Betätigungsmechanismus eines weckers
EP3059643B1 (de) Uhrmechanismus
EP3059642B1 (de) Uhrmechanismus
EP1593005A1 (de) Kalendarmechanismus zur darstellung des wochentages und des monatstages in einer uhr
CH717359A1 (fr) Dispositif de déclenchement d'un mécanisme horloger.
CH707181A2 (fr) Dispositif horloger, notamment un dispositif d'affichage sautant.
WO2011160970A1 (fr) Mouvement horloger presentant des fonctions de chronographe et de compte-a-rebours
EP3368950B1 (de) Chronograph mit rückwärtszähler
EP4421567A1 (de) Auslösemechanismus eines uhrwerksmechanismus und uhr mit solch einem auslösemechanismus
CH707182A2 (fr) Dispositif horloger.
CH691088A5 (fr) Mécanisme de mise à l'heure d'un mouvement d'horlogerie à quantième perpétuel.
WO2013104802A1 (fr) Mecanisme d'indication a la demande d'une information pour mouvement horloger
CH713437B1 (fr) Mécanisme d'affichage sautant.
EP3252543B1 (de) Anzeigevorrichtung für uhrwerk
CH716385B1 (fr) Mécanisme horloger d'entraînement et de blocage d'un mobile sautant.
EP3599517A1 (de) Retrogrades tourbillon oder karussell eines uhrwerks
EP4310603B1 (de) Uhrwerk
EP4254079A1 (de) Mechanismus zur anzeige der mondphasen für uhr
WO2024013346A1 (fr) Mecanisme pour la mesure d'un temps pour mouvement horloger, notamment mecanisme de chronographe
EP2254007B1 (de) Anzeigevorrichtung der Gangreserve für Uhr
CH719558A2 (fr) Mouvement d'horlogerie comportant un mécanisme d'affichage des phases de lune.
CH720089A1 (fr) Mobile pour un mécanisme horloger, mécanisme horloger, mouvement horloger, et pièce d'horlogerie correspondants
CH717651B1 (fr) Procédé de remontage d'une montre sympathique.
CH717702B1 (fr) Ensemble sympathique d'horlogerie.

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION HAS BEEN PUBLISHED

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC ME MK MT NL NO PL PT RO RS SE SI SK SM TR