EP4328674A1 - Bremsvorrichtung für eine uhr - Google Patents

Bremsvorrichtung für eine uhr Download PDF

Info

Publication number
EP4328674A1
EP4328674A1 EP22191788.3A EP22191788A EP4328674A1 EP 4328674 A1 EP4328674 A1 EP 4328674A1 EP 22191788 A EP22191788 A EP 22191788A EP 4328674 A1 EP4328674 A1 EP 4328674A1
Authority
EP
European Patent Office
Prior art keywords
mobile
braking
kinematic chain
drive
display member
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
EP22191788.3A
Other languages
English (en)
French (fr)
Inventor
Julien Giacobino
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 EP22191788.3A priority Critical patent/EP4328674A1/de
Publication of EP4328674A1 publication Critical patent/EP4328674A1/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
    • G04B19/24—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
    • 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 relates to a braking device capable of being integrated into a watchmaking device.
  • the present invention relates in particular to a braking device making it possible to brake a kinematic chain of a watchmaking device.
  • the same drive mobile can intermittently and sometimes differentiatedly drive at least two members, for example at least two display members, each member being driven via a kinematic chain distinct.
  • the drive mobile advances, for example, step by step at a rate determined depending on the nature of the device.
  • Intermittent training means that at least certain organs are not trained at each step of the training mobile, and differentiated means that the organs can each be trained at different times.
  • both display members are generally driven by the same drive wheel via two separate kinematic chains.
  • the training mobile advances one step every twenty-four hours.
  • the two display elements are driven simultaneously. But the most of the time, only the units indicator is driven by the drive mobile.
  • the 31st day of the month passes to the 1st day of the following month, on the other hand, only the tens display member is driven by the drive mobile and goes from “3” to “0” or to none. digit while the unit display remains stationary displaying “1”.
  • a large date calendar is for example described in the European patent application EP 3 786 723 in the name of the plaintiff.
  • Such a watch device must be configured so that the energy released at each step by the drive mobile is sufficient to simultaneously drive all the display members.
  • all the energy developed by the drive mobile is directed towards the remaining display member(s), respectively towards the kinematic chain(s) driving them.
  • This excess energy can lead to oscillations, double jumps or bounces of the driven display unit(s), which can even lead to blocking of the corresponding kinematic chain.
  • This problem is all the more present as the pace is rapid. It is, for example, particularly present in devices whose pitch is almost instantaneous, for example caused by the sudden release of a spring.
  • the energy absorbed by the kinematic chain driving the tens display represents less than half of the total energy, and the reduction in energy directed to the kinematic chain driving the units display compared to when the latter is driven alone does not prevent its rotation.
  • the energy directed towards the kinematic chain driving the tens display member is much more important than during other tens changes.
  • An aim of the present invention is to provide a braking device which makes it possible to brake a mobile watch device intermittently and selectively, that is to say at predetermined times.
  • the expression “display member” includes any member allowing the display of temporal information, the creation of a decorative effect, or any other visual effect.
  • a braking device for braking a kinematic chain of a watchmaking device
  • the device brake comprising a tangential brake and a mobile comprising a braking element integral in rotation with the mobile, the mobile being intended to form part of a kinematic chain of a watchmaking device and to be driven step by step by taking several steps per revolution
  • the tangential brake and the braking element being configured to come into contact by friction for at least one step at each revolution of the mobile and not to come into contact with one another for at least one step at each turn of the mobile.
  • the tangential brake and the braking element being configured to only brake the mobile by friction between them during certain steps at each revolution of the mobile, it is possible, using the braking device of the invention to only brake the kinematic chain of which the mobile is part only when necessary.
  • the braking element is preferably a braking cam comprising at least one finger intended to come into contact by friction with the tangential brake.
  • the braking element comprises at least one pin or a stud formed with the mobile or fixed to the latter.
  • a watch device comprising a drive mobile, a first display member driven by the drive mobile via a first kinematic chain, a second display member driven intermittently by the drive mobile via a second kinematic chain, in which the first kinematic chain comprises such a braking device configured to brake the first kinematic chain when the drive mobile drives the first display member and does not drive the second display member.
  • the first kinematic chain can thus be braked so as to absorb the excess energy due to the non-drive of the second kinematic chain.
  • the drive mobile is for example configured to be driven by rapid steps, for example caused by the sudden relaxation of a spring.
  • the second kinematic chain comprises a second braking device according to the invention configured to brake the second kinematic chain when the drive mobile drives the second display member and does not drive the first display member. display, thus also protecting the second kinematic chain and therefore the second display member against excess kinematic energy coming from the drive mobile.
  • the watch device may include a third display member driven intermittently by the drive wheel via a third kinematic chain.
  • the watch device then comprises for example a plurality of braking devices according to the invention, the plurality of braking devices being configured to brake the first kinematic chain when the drive mobile drives the first display member and does not drive the third display member; and/or to brake the second kinematic chain when the drive mobile drives the second display member and does not drive the first and/or third display member; and/or to brake the third kinematic chain when the drive mobile drives the third display member and does not drive the first and/or the second display member.
  • the watchmaking device is for example a date display device, a chronograph, a countdown timer or a automaton.
  • a timepiece comprising such a timepiece device.
  • the braking device 1 comprises a tangential brake 2 and a mobile 4, the tangential brake 2 intermittently rubbing a braking element, for example a braking cam 42, of the mobile 4 during of the rotation of the latter to brake the mobile 4.
  • the mobile 4 is for example a mobile intended to be part of a kinematic chain driving a display member of a watch device comprising at least two display members driven by the same drive member via at least two separate kinematic chains.
  • the mobile 4 includes for example a tens star intended to be integrated into a “big date” type calendar to form part of the kinematic chain driving the tens display member.
  • the braking device 1 is configured so that the brake 2 acts on the mobile 4 intermittently and selectively.
  • the mobile 4 advances for example by four steps per revolution and the brake 2 acts on the mobile 4 only during one step out of four, during the step corresponding for example to the transition from "3" to "0 » of the tens indicator of a “big date” date during which the units indicator remains stationary.
  • the tangential brake 2 is attached for example to a fixed stud 3 relative to the axis of rotation of the mobile 4.
  • the mobile 4 is for example intended to be driven step by step by performing four steps per turn. Mobile 4 thus turns 90° with each step.
  • the mobile 4 comprises a braking cam 42 configured to come into contact with the tangential brake 2 during one step per revolution of the mobile 4.
  • the braking cam 42 thus comprises a finger on its periphery intended to rub against the tangential brake 2 when he passes in front of the latter.
  • the dimensions of the finger, in particular its height, as well as the position and elasticity of the tangential brake 2 are determined to obtain the desired braking force depending on the use which will be made of the braking device 1.
  • the mobile 4 comprises three stages each having a different function: a first stage not visible in the figures comprises for example four teeth, forming for example a tens star, to drive the mobile 4 in rotation under the action of a driving mobile, for example a tens cam of a date of the "large date"type; an optional second stage forms for example an anti-double-jump device 41 intended to cooperate with the leading mobile to avoid a double jump of the mobile when it advances by one step and/or to avoid its involuntary rotation between two steps; a third stage forms the braking cam 42 to brake the mobile 4 every fourth step in cooperation with the tangential brake 2.
  • the mobile 4 is for example in one piece.
  • the braking cam 42 is for example formed by the clearance over part of their height of three out of four corners of the anti-double-jump device 41.
  • the brake 2 is positioned at the height of the braking cam 42 and dimensioned so not to come into contact with the anti-double-jump device 41.
  • the mobile 4 is a single piece. According to other embodiments, the mobile 4 is formed by the assembly of several elements integral in rotation, for example an element comprising four star teeth, an optional element comprising an anti-double-jump device and an element forming the brake cam; an element comprising four star teeth and optionally an anti-double-jump device, and an element forming the braking cam; etc.
  • the anti-double-jump device being optional, if it is not present, the mobile only includes two stages: a stage configured for driving the mobile and a stage configured for its intermittent braking by the tangential brake.
  • the mobile 4 comprises a braking cam 42 comprising a finger to come into contact with the tangential brake 2 during one step at each revolution.
  • a braking cam 42 comprising a finger to come into contact with the tangential brake 2 during one step at each revolution.
  • Other embodiments of the braking element intended to come into contact with the tangential brake to brake the mobile are however possible within the framework of the invention.
  • the braking cam may include several fingers in order to brake the mobile for more than one step per revolution.
  • the braking cam will however comprise at least one part configured not to come into contact with the tangential brake, so that the mobile is not braked for at least one step per revolution.
  • the mobile can for example comprise one or more pins or studs arranged for example on one or more teeth drive of the mobile or on one or more corners of the anti-double-jump device.
  • the pins or studs are for example formed integrally with the mobile or fixed to the latter.
  • the mobile 4 can also be configured to perform a number of steps per revolution other than four, but greater than one.
  • the braking device 1 is capable of being integrated into a watch device comprising a drive mobile, a first mobile, for example a first display mobile, driven intermittently by the drive mobile by via a first kinematic chain, a second mobile, for example a second display mobile driven intermittently by the drive mobile via a second kinematic chain, the braking device being configured to brake the first kinematic chain when the drive mobile drives the first mobile and does not drive the second mobile.
  • the watch device is for example a “large date” type date and the braking device 1 is integrated into the kinematic chain driving the tens indicator.
  • a braking device according to the invention it is also possible for a braking device according to the invention to be integrated into the kinematic chain driving the units indicator to brake the latter when the tens indicator is not driven. It is also possible to envisage braking devices according to the invention being integrated into the two kinematic chains so as to brake the two kinematic chains in an intermittent and differentiated manner.
  • a watch device comprises several braking devices according to the invention acting on different mobiles of the same kinematic chain and/or on mobiles of different kinematic chains and/or that the brake(s) act several times per revolution of the corresponding mobile(s).
  • the braking devices are then configured so as to brake intermittently and differentiated one or the other kinematic chain of the watchmaking device as a function of the kinematic chain(s) driven at the corresponding step in order to guarantee a certain homogeneity of the quantity of energy, and therefore of the torque, transmitted at each step to the driven display members.
  • the braking device can be integrated into other types of watchmaking devices, for example a chronograph, a countdown timer, an automaton, or any other watchmaking device comprising at least two driven members of intermittent and differentiated manner by the same drive mobile via at least two distinct kinematic chains.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Measurement Of Unknown Time Intervals (AREA)
EP22191788.3A 2022-08-23 2022-08-23 Bremsvorrichtung für eine uhr Pending EP4328674A1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP22191788.3A EP4328674A1 (de) 2022-08-23 2022-08-23 Bremsvorrichtung für eine uhr

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP22191788.3A EP4328674A1 (de) 2022-08-23 2022-08-23 Bremsvorrichtung für eine uhr

Publications (1)

Publication Number Publication Date
EP4328674A1 true EP4328674A1 (de) 2024-02-28

Family

ID=83050140

Family Applications (1)

Application Number Title Priority Date Filing Date
EP22191788.3A Pending EP4328674A1 (de) 2022-08-23 2022-08-23 Bremsvorrichtung für eine uhr

Country Status (1)

Country Link
EP (1) EP4328674A1 (de)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0083307A1 (de) * 1981-12-28 1983-07-06 Nouvelle Lémania S.A. Elektronische Chronographuhr
EP2977829A1 (de) * 2014-07-24 2016-01-27 ETA SA Manufacture Horlogère Suisse Anordnung mit beweglichem Bremselement einer Uhr
EP3483663A1 (de) * 2017-11-02 2019-05-15 Rolex Sa Antriebsvorrichtung für kalendersystem einer uhr
EP3786723A1 (de) 2019-08-30 2021-03-03 Patek Philippe SA Genève Anzeigemechanismus

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0083307A1 (de) * 1981-12-28 1983-07-06 Nouvelle Lémania S.A. Elektronische Chronographuhr
EP2977829A1 (de) * 2014-07-24 2016-01-27 ETA SA Manufacture Horlogère Suisse Anordnung mit beweglichem Bremselement einer Uhr
EP3483663A1 (de) * 2017-11-02 2019-05-15 Rolex Sa Antriebsvorrichtung für kalendersystem einer uhr
EP3786723A1 (de) 2019-08-30 2021-03-03 Patek Philippe SA Genève Anzeigemechanismus

Similar Documents

Publication Publication Date Title
EP1864190B1 (de) Uhrwerk
EP1989597A2 (de) Uhr mit mindestens einem dreidimensionalen zeitanzeiger
EP1962152B1 (de) Schutzvorrichtung für Anzeige.
EP3173876A1 (de) Kalendersystem für uhr
EP4328674A1 (de) Bremsvorrichtung für eine uhr
CH703797B1 (fr) Pièce d'horlogerie comportant un chronographe et une foudroyante.
CH699794A2 (fr) Dispositif d'aide au maintien en position d'un disque indicateur de quantième pour pièce d'horlogerie.
WO2006024311A1 (fr) Mecanisme d’affichage de chiffres, figures ou signes animes sur un cadran de piece d’horlogerie
EP1158374B1 (de) Datumsanzeigevorrichtung für eine Uhr
CH704696B1 (fr) Pièce d'horlogerie comportant un mécanisme d'affichage rétrograde.
CH699143B1 (fr) Mécanisme d'affichage.
EP3460588B1 (de) Datumsmechanismus
EP1734419B1 (de) Uhr mit Kalendermechanismus
EP4022399A1 (de) Anzeigemechanismus
CH360367A (de) Verfahren zum dauerhaften Formfixieren von Keratinfasern enthaltenden konfektionierten Kleidungsstücken
CH702795B1 (fr) Système d'affichage d'une information horaire de période T comprenant N secteurs pour pièce d'horlogerie.
EP1462875A2 (de) Zurückstellende Anzeigevorrichtung für Uhren
CH354031A (fr) Pièce d'horlogerie
WO2022264046A1 (fr) Mécanisme de calendrier avec affichage des saisons pour pièce d'horlogerie
CH704708A2 (fr) Mouvement horloger avec mécanisme d'indicateur anniversaire.
CH713074A2 (fr) Mouvement d'horlogerie comportant deux affichages analogiques opposés.
CH717255B1 (fr) Mouvement horloger mécanique à affichage du quantième.
CH698435B1 (fr) Mouvement d'horlogerie et pièce d'horlogerie comportant un tel mouvement.
CH678787B5 (de)
CH309974A (fr) Pièce 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 MK MT NL NO PL PT RO RS SE SI SK SM TR