EP4321939A1 - Vorrichtung zur sofortigen auslösung für einen uhrwerkmechanismus - Google Patents

Vorrichtung zur sofortigen auslösung für einen uhrwerkmechanismus Download PDF

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Publication number
EP4321939A1
EP4321939A1 EP22189421.5A EP22189421A EP4321939A1 EP 4321939 A1 EP4321939 A1 EP 4321939A1 EP 22189421 A EP22189421 A EP 22189421A EP 4321939 A1 EP4321939 A1 EP 4321939A1
Authority
EP
European Patent Office
Prior art keywords
finger
rocker
trigger
wheel
trigger module
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
EP22189421.5A
Other languages
English (en)
French (fr)
Inventor
Didier VUILLEMIN
Lukas Gisler
Dimitri GLAUS
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.)
Patek Philippe SA Geneve
Original Assignee
Patek Philippe SA Geneve
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 Patek Philippe SA Geneve filed Critical Patek Philippe SA Geneve
Priority to EP22189421.5A priority Critical patent/EP4321939A1/de
Publication of EP4321939A1 publication Critical patent/EP4321939A1/de
Pending legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G04—HOROLOGY
    • G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
    • G04B19/00—Indicating the time by visual means
    • G04B19/24—Clocks or watches with date or week-day indicators, i.e. calendar clocks or watches; Clockwork calendars
    • G04B19/243—Clocks or watches with date or week-day indicators, i.e. calendar clocks or watches; Clockwork calendars characterised by the shape of the date indicator
    • G04B19/247—Clocks or watches with date or week-day indicators, i.e. calendar clocks or watches; Clockwork calendars characterised by the shape of the date indicator disc-shaped
    • G04B19/253—Driving or releasing mechanisms
    • G04B19/25333—Driving or releasing mechanisms wherein the date indicators are driven or released mechanically by a clockwork movement
    • G04B19/25353—Driving or releasing mechanisms wherein the date indicators are driven or released mechanically by a clockwork movement driven or released stepwise by the clockwork movement
    • 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
    • G04B19/24—Clocks or watches with date or week-day indicators, i.e. calendar clocks or watches; Clockwork calendars
    • G04B19/243—Clocks or watches with date or week-day indicators, i.e. calendar clocks or watches; Clockwork calendars characterised by the shape of the date indicator
    • G04B19/247—Clocks or watches with date or week-day indicators, i.e. calendar clocks or watches; Clockwork calendars characterised by the shape of the date indicator disc-shaped
    • G04B19/253—Driving or releasing mechanisms
    • G04B19/25333—Driving or releasing mechanisms wherein the date indicators are driven or released mechanically by a clockwork movement
    • G04B19/25373—Driving or releasing mechanisms wherein the date indicators are driven or released mechanically by a clockwork movement driven or released stepwise by an energy source which is released at determined moments by the clockwork movement

Definitions

  • the present invention generally relates to a device for instantaneous triggering or actuation of a watch mechanism, in particular for jumping an indication of a calendar, for example days, weeks or months.
  • the mechanisms used to jump an indication generally involve a finger fixed on a 24-hour wheel which makes one revolution in 24 hours.
  • This finger is arranged to rotate a star attached to a disk containing the indications to be displayed successively.
  • the star cooperates with a positioning jumper, which ensures a precise angular position of the star after each jump.
  • This solution is simple but has the disadvantage of generating a slow jump time since the transition from the display of one indication to the display of the next indication is dependent on the rotation speed of the 24-hour wheel.
  • An aim of the present invention is therefore to propose a device for instantaneous triggering of a watch mechanism free from the aforementioned drawbacks.
  • an aim of the present invention is to propose a device for instantaneously triggering a watch mechanism by means of a finger independently of the usual rotation speed of the mobile on which the finger is mounted.
  • Another aim of the present invention is to propose a device for instantaneous triggering of a watch mechanism, the energy of which required to trigger the mechanism is significantly reduced.
  • an instantaneous trigger device for triggering or activating a mechanism of a watch movement, in particular for effecting the transition from one indication to the next indication of a display such as a display of date.
  • the instantaneous trigger device comprises for this purpose: a trigger module comprising a wheel intended to be driven by the watch movement, and a finger arranged to be driven by the wheel; a rotary impulse member comprising at least one trigger finger, the rotary impulse member being arranged to be under the action of a torque; at least one rocker arranged to cooperate, on the one hand, with the rotary impulse member and, on the other hand, with the trigger module when the rocker is in a rest position so that the finger of the trigger module trigger can bring the rocker from the rest position to an intermediate position in which the trigger finger of the rotary impulse member, under the action of the torque, transmits an impulse to the rocker so that it can be released trigger module finger; and a rocker spring arranged to return and maintain the rocker in the rest position.
  • the finger of the trigger module is arranged to be pivoted instantly by a sufficient angle so that it can be released from the rocker before the latter is returned to the rest position under the action of the rocker spring.
  • said torque is produced either by the barrel of the watch movement, or by an elastic member independent of the movement.
  • the trigger module is further arranged to dissociate the rotation of the finger from that of the wheel during the instantaneous pivoting of the finger caused by the rocker.
  • one of the wheel and the finger of the trigger module comprises a zone provided with an opening or a housing, preferably of curved shape according to the direction of the zone during the rotation of the module.
  • the other of the wheel and the finger has a drive element arranged in the opening or housing so that the drive element can move along this opening or of this housing at the time of the instantaneous pivoting of the finger caused by the rocker.
  • the rocker comprises an actuating nose comprising, on the one hand, a rest plane against which the trigger finger of the rotary impulse member rests when the rocker is in the position of rest and, on the other hand, a plane of impulse against which the finger moves in order to transmit the torque of the rotary impulse member to the rocker.
  • the trigger module further comprises an elastic member secured to the wheel and cooperating with the drive element.
  • the elastic member is arranged to store energy by the rotation of the wheel when the movement of the finger is stopped by the rocker.
  • the elastic member comprises a curved blade which is fixed on the wheel and a blade head resting against the drive element secured to the finger.
  • the trigger module further comprises a shockproof part.
  • the wheel, finger and anti-shock part are mounted coaxially.
  • the rocker comprises an actuating arm arranged in a first plane to cooperate with the rotating member, and a trigger arm arranged in a second plane to cooperate with the finger of the trigger module.
  • the trigger module further comprises a training part integral with or forming part of integral part of the finger.
  • the rocker comprises an impulse tip arranged to strike against a contact surface of the driving part in order to pivot the finger instantly by a predefined angle when the rocker is pivoted instantly by the impulse transmitted by the trigger finger of the rotating member.
  • Another aspect of the invention relates to a watch movement comprising the instantaneous triggering device as well as to a timepiece comprising such a movement
  • the latter comprises a trigger module 20, a rotary impulse member 50, a rocker 60 and a rocker spring 70.
  • the rocker 60 is arranged to cooperate , on the one hand, with the rotary impulse member 50 and, on the other hand, with the trigger module 20.
  • the trigger module 20 comprises a wheel 22 arranged to engage with a gear train of a watch movement, an elastic member 30, an actuation part 26 comprising a finger 27, as well as an anti-shock part 40.
  • the actuation and shock-proof parts can be replaced by a single part according to a variant of execution.
  • the wheel 22 can for example be driven one revolution every 24 hours when the instantaneous trigger device 10 is arranged to activate a date mechanism.
  • the wheel 22, the actuating part 26 and the anti-shock part 40 are mounted coaxially.
  • the elastic member 30 comprises a curved blade 34 extending for example over at least 180°, a blade head 36 located at one end of the blade 34, and a fixing part 32 located at another blade end.
  • the fixing part 32 is fixed on the wheel 22.
  • This fixing part can for example comprise two holes inside which two studs secured to the wheel 22 are driven.
  • the actuating part 26 mainly has a circular periphery interrupted by a clearance 28 as well as a first and a second drive element 29a, 29b extending perpendicularly on either side of this part.
  • the wheel 22 includes a zone provided with an opening 24 preferably having a curved shape in the direction of the zone during rotation of the wheel.
  • This opening 24 can just as easily be replaced by a housing to carry out the jump function of the actuation part 26 and the function of catching up the wheel 22 on the actuation part after each jump thereof as described below -After.
  • the driving element 29b of the actuating part 26 is arranged inside the curved opening 24 bearing against the blade head 36 so that it can move along this opening under the action of blade 34 at the moment of instantaneous pivoting of the finger 27 of the actuating part according to the description which will be made subsequently with regard to the operational sequence of the instantaneous triggering device 10 with reference to the figures 4a to 4f .
  • the anti-shock part 40 mainly has a circular periphery 42 interrupted by a notch 44.
  • the anti-shock part 40 also includes a hole 46 receiving the driving element 29b of the actuating part 26 so that the anti-shock part can pivot at the unison with finger 27.
  • the rocker 60 comprises an actuating arm 62 arranged in a first plane to cooperate with the rotary impulse member 50, and a trigger arm 66 which is provided with a trigger tip 68 and which is arranged in a second plane to cooperate with the finger 27 of the trigger module 20.
  • the actuation arm 62 comprises for this purpose at one end an actuation nozzle 64 comprising a rest plane 64a and an impulse plane 64b.
  • the actuating arm 62 further comprises a contact portion 65, for example a tip, intended to come into contact with the circular periphery 42 of the anti-shock part 40.
  • the rotary impulse member 50 of the instantaneous trigger device 10 comprises a first and a second trigger finger 52a, 52b which are diametrically opposed.
  • the impulse member 50 may, however, include only one trigger finger according to one variant.
  • This impulse member 50 is kept under tension by the watch movement.
  • it can for example comprise a gear train connecting a wheel (not shown) secured to the rotary impulse member 50 and the barrel ratchet in order to transmit the torque exerted by the barrel ratchet to the rotary impulse member.
  • the watch movement further comprises a differential in order to allow the barrel to transmit its energy to the movement when the impulse member 50 is locked in rotation according to the description which will be made later with regard to the operational sequence of the instantaneous trigger device 10.
  • the torque transmitted to the rotary impulse member does not come from the barrel ratchet but from an elastic member independent of the movement.
  • the elastic member can for example be arranged in the watch case outside the movement.
  • the torque produced by the elastic member is transmitted to the rotating impulse member via, for example, a gear train.
  • one is the other of the two trigger fingers 52a, 52b of the rotary impulse member 50 are intended to come in turn to bear against the rest plane 64a of the actuation nozzle 64.
  • the rotary impulse member 50 is driven by the watch movement to rotate 180° in a very short period of time, that is to say less than a second, preferably less than a tenth of second.
  • a finger (not shown) can therefore be fixed on the rotary impulse member in order to be able to instantly activate a watch mechanism, for example a 31 star of a date display.
  • one of the two fingers 52a, 52b of the rotary impulse member 50 bears against the rest plane 64a of the actuating nose 64 of the rocker 60.
  • the impulse member 50 is at this instant under the action of a torque exerted by the gear train of the watch movement engaged with the barrel ratchet.
  • figure 4a illustrates the instantaneous triggering device 10 where the tip 65 of the actuating arm of the rocker 60 comes into contact with the circular periphery 42 of the anti-shock part 40 following an impact. This has the effect of limiting the movement of the rocker 60 to a range which does not interfere with the proper functioning of the device.
  • the finger 27 is at this moment at a distance from the trigger nose 68 of the rocker 60.
  • the blade 34 is at this moment in a rest position with the blade head 36 resting against the drive element 29b.
  • the driving part 26 is again driven by the wheel 22, which allows the finger 27 to act on the trigger tip 68 in order to pivot the rocker 60 from a rest position to an intermediate position to allow one of the two trigger fingers 52a, 52b of the rotary impulse member 50 to engage the impulse plane 64b of the actuation nozzle 64 as illustrated in figure 4c .
  • the movement of the trigger finger 52a along the pulse plane 64b of the pulse tip 64 of the rocker 60 makes it possible to give the latter an impulse in order to clear the trigger tip 68 from the trajectory of the finger 27.
  • the notch 44 of the anti-shock part 40 as well as the clearance 28 of the actuation part 26 make it possible to release the rocker 60 from these two parts each time an impulse is given to the rocker by one or the other of the two trigger fingers 52a, 52b of the rotary impulse member 50.
  • the blade head 36 pushes the driving element 29b as soon as the trigger tip 68 of the rocker is released from the trajectory of the finger 27, which causes a jump of the actuating part 26 under the action of the blade 34 on the driving element 29b until it returns against the opposite edge of the opening 24 present on the wheel 22.
  • the jump takes place instantly and with an angular step corresponding to the angular distance traveled by the drive element 29b from one to the other of the two opposite edges of the opening 24 of the wheel 22.
  • the term "instantaneous" must be interpreted as a lapse very short time, of the order of a few seconds at most, preferably less than a second, or even less than a tenth of a second.
  • the blade 34 returns to its rest position after each jump made.
  • This jump is essential since it ensures the release of the finger 27 from the trajectory of the triggering nose 68 of the rocker 60 when the latter is returned to the rest position.
  • the rocker spring 70 in fact exerts a restoring force as soon as one of the two trigger fingers 52a, 52b of the rotary impulse member 50 is released from the impulse plane 64b of the actuating nose 64 of the rocker so that it returns to the rest position so that the other of the two trigger fingers 52a, 52b can come into abutment against the rest plane 64a of the actuating nose 64 as illustrated in figure 4e .
  • the rocker 60 must be returned to the rest position as quickly as possible in view of the high rotation speed of the rotary impulse member 50.
  • the rotation of the wheel 22 is slow. This wheel can, for example, make a complete rotation every 24 hours so that the instantaneous triggering device can make the transition from the indication of one day to the indication of the following day instantly.
  • jumping the finger instantly is essential to prevent the rocker from hitting the finger when it returns to the rest position.
  • the actuating part 26 After each jump, the actuating part 26 remains stationary for a certain duration, the time necessary for the opposite edge of the opening 24 to come into contact again with the driving element 29b of the actuating part. This allows the wheel 22 to compensate for the angular advance of the actuating part 26 caused by the jump.
  • the wheel 22, the actuating part 26 as well as the anti-shock part 40 then rotate together, as illustrated in figure 4f until the finger 26 again comes into contact with the trigger tip 68 of the rocker 60 in order to initiate a new operational sequence identical to the sequence described with reference to the figures 4a to 4e .
  • the device instantaneous trigger 10 is shown during an impact where the tip 65 is in contact with the circular periphery 42 of the anti-shock part 40 in order to imitate the movement of the rocker 60 to avoid untimely unlocking of the impulse member rotary 50.
  • the latter comprises, like the first embodiment, a trigger module 20, a rotary impulse member 50, a rocker 60 and a flip-flop return 70.
  • the flip-flop 60 is arranged to cooperate, on the one hand, with the rotary impulse member 50 and, on the other hand, with the trigger module 20.
  • the trigger module 20 comprises a wheel 22, an actuation part 26, for example in the shape of a spiral whose top acts as a finger 27, and a drive part 48, for example also in the form of a spiral, comprising a contact surface 49 intended to cooperate with the rocker 60.
  • An opening or a housing 24, the shape of which is preferably curved, is present on the wheel 22 while a drive element 29 is integral with the actuating part 26 and is arranged in the opening/housing 24 of the wheel 22.
  • it is the actuating part which has a curved housing while the drive element is integral with the wheel and arranged in the accommodation.
  • the wheel 22, the actuating part 26 and the driving part 48 are mounted coaxially.
  • the drive part 48 is integral with the actuation part 26.
  • the rotary impulse member 50 intended to support a finger for actuating a watch mechanism, comprises only one finger trigger 52 but could very well include two trigger fingers like the rotary impulse member of the first embodiment.
  • the rocker 60 comprises, in a first plane, an actuation arm comprising an actuation nose 64 arranged to cooperate with the trigger finger 52 of the rotary impulse member 50.
  • the actuation nozzle 64 comprises, just as for the first embodiment, a rest plane 64a, and an impulse plane 64b.
  • the actuating arm of the rocker 60 further comprises a trigger nozzle 68 intended to cooperate with the finger 27 of the actuating part 26.
  • the rocker also comprises, in a second plane, an impulse nozzle 69 arranged to strike the contact surface 49 of the drive part 48 according to the description of the operational sequence of the device below.
  • FIG. 5 illustrates the instantaneous trigger device 10 in a locked configuration in which the trigger finger 52 rests against the rest plane 64a of the actuation nose 64 of the rocker.
  • the finger 27 of the actuating part 26 is brought into contact with the trigger tip 68 of the rocker by the action of the wheel 22 on the actuating part 26 via the driving element 29.
  • the additional rotation of the wheel 22 allows the finger 27 to act on the triggering nose 68 of the rocker 60 in order to lift the latter into an intermediate position to allow the triggering finger 52 of the rotary impulse member 50 to engage the impulse plane 64b of the actuation nozzle 64 of the rocker as illustrated in figure 6a .
  • the movement of the trigger finger 52 along the impulse plane 64b of the impulse nose 64 makes it possible to give the flip-flop an impulse.
  • This impulse allows the impulse nozzle 69 to strike against the surface contact 49 of the driving part 48 in order to cause an instantaneous jump of the finger 27 with an angular step sufficient to release the finger 27 from the triggering nose 68 of the rocker 60 as illustrated by the figures 6a-6b .
  • this instantaneous triggering device does not include an anti-shock part.
  • the trigger device which has just been described includes only a single flip-flop to cooperate not only with the rotary impulse member but also with the trigger module
  • the trigger device can just as easily include a first and a second flip-flop arranged to cooperate respectively with the rotary impulse member and the trigger module.
  • the two rockers are connected together by a pivot and each cooperates with a rocker spring.
  • the rocker springs return the two rockers to their rest position so that the finger or another finger of the impulse member can abut against the rest plane of the nozzle actuation of the first rocker as for the two embodiments of the trigger device described previously.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Portable Nailing Machines And Staplers (AREA)
EP22189421.5A 2022-08-09 2022-08-09 Vorrichtung zur sofortigen auslösung für einen uhrwerkmechanismus Pending EP4321939A1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP22189421.5A EP4321939A1 (de) 2022-08-09 2022-08-09 Vorrichtung zur sofortigen auslösung für einen uhrwerkmechanismus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP22189421.5A EP4321939A1 (de) 2022-08-09 2022-08-09 Vorrichtung zur sofortigen auslösung für einen uhrwerkmechanismus

Publications (1)

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EP4321939A1 true EP4321939A1 (de) 2024-02-14

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP22189421.5A Pending EP4321939A1 (de) 2022-08-09 2022-08-09 Vorrichtung zur sofortigen auslösung für einen uhrwerkmechanismus

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EP (1) EP4321939A1 (de)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1857890A2 (de) * 2006-03-30 2007-11-21 Richemont International S.A. Vorrichtung zur Auslösung eines Impulses
EP3913442A1 (de) * 2020-05-20 2021-11-24 Blancpain SA Retrograder uhranzeigemechanismus, der mit einer sicherheitsvorrichtung ausgestattet ist

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1857890A2 (de) * 2006-03-30 2007-11-21 Richemont International S.A. Vorrichtung zur Auslösung eines Impulses
EP3913442A1 (de) * 2020-05-20 2021-11-24 Blancpain SA Retrograder uhranzeigemechanismus, der mit einer sicherheitsvorrichtung ausgestattet ist

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