EP4121822B1 - Mechanisches stopp- und startsystem für eine funktion und uhr mit einem solchen system - Google Patents

Mechanisches stopp- und startsystem für eine funktion und uhr mit einem solchen system Download PDF

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Publication number
EP4121822B1
EP4121822B1 EP21711842.1A EP21711842A EP4121822B1 EP 4121822 B1 EP4121822 B1 EP 4121822B1 EP 21711842 A EP21711842 A EP 21711842A EP 4121822 B1 EP4121822 B1 EP 4121822B1
Authority
EP
European Patent Office
Prior art keywords
mass
function
watch
extreme position
spring
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.)
Active
Application number
EP21711842.1A
Other languages
English (en)
French (fr)
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EP4121822A1 (de
Inventor
Romain MOYSE
Kéwin Bas
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.)
Cartier International AG
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Cartier International AG
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
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Publication of EP4121822A1 publication Critical patent/EP4121822A1/de
Application granted granted Critical
Publication of EP4121822B1 publication Critical patent/EP4121822B1/de
Active legal-status Critical Current
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Classifications

    • G—PHYSICS
    • G04—HOROLOGY
    • G04F—TIME-INTERVAL MEASURING
    • G04F7/00—Apparatus for measuring unknown time intervals by non-electric means
    • G04F7/04—Apparatus for measuring unknown time intervals by non-electric means using a mechanical oscillator
    • G04F7/06—Apparatus for measuring unknown time intervals by non-electric means using a mechanical oscillator running only during the time interval to be measured, e.g. stop-watch
    • G04F7/065—Apparatus for measuring unknown time intervals by non-electric means using a mechanical oscillator running only during the time interval to be measured, e.g. stop-watch with start-stop control arrangements
    • 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
    • G04B21/00—Indicating the time by acoustic means
    • G04B21/02—Regular striking mechanisms giving the full hour, half hour or quarter hour
    • G04B21/12—Reiterating watches or clocks
    • 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
    • G04B5/04—Automatic winding up by self-winding caused by the movement of the watch by oscillating weights the movement of which is limited
    • G04B5/08—Automatic winding up by self-winding caused by the movement of the watch by oscillating weights the movement of which is 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
    • G04B11/00—Click devices; Stop clicks; Clutches
    • G04B11/001—Clutch mechanism between two rotating members with transfer of movement in both directions, possibly with limitation on the transfer of power
    • 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
    • G04B11/00—Click devices; Stop clicks; Clutches
    • G04B11/001—Clutch mechanism between two rotating members with transfer of movement in both directions, possibly with limitation on the transfer of power
    • G04B11/005—Clutch mechanism between two rotating members with transfer of movement in both directions, possibly with limitation on the transfer of power with magnetic elements
    • 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
    • G04B45/00—Time pieces of which the indicating means or cases provoke special effects, e.g. aesthetic effects
    • G04B45/0007—Light-, colour-, line-, or spot-effects caused by parts or pictures moved by the clockwork
    • 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
    • G04B45/00—Time pieces of which the indicating means or cases provoke special effects, e.g. aesthetic effects
    • G04B45/0038—Figures or parts thereof moved by the clockwork
    • G04B45/0046—Figures or parts thereof moved by the clockwork with oscillating motion, in pocket- or wrist watches
    • G—PHYSICS
    • G04—HOROLOGY
    • G04F—TIME-INTERVAL MEASURING
    • G04F7/00—Apparatus for measuring unknown time intervals by non-electric means
    • G04F7/04—Apparatus for measuring unknown time intervals by non-electric means using a mechanical oscillator
    • G04F7/08—Watches or clocks with stop devices, e.g. chronograph
    • G04F7/0842—Watches or clocks with stop devices, e.g. chronograph with start-stop control mechanisms
    • G04F7/0847—Watches or clocks with stop devices, e.g. chronograph with start-stop control mechanisms with column wheel
    • G—PHYSICS
    • G04—HOROLOGY
    • G04F—TIME-INTERVAL MEASURING
    • G04F7/00—Apparatus for measuring unknown time intervals by non-electric means
    • G04F7/04—Apparatus for measuring unknown time intervals by non-electric means using a mechanical oscillator
    • G04F7/08—Watches or clocks with stop devices, e.g. chronograph
    • G04F7/0842—Watches or clocks with stop devices, e.g. chronograph with start-stop control mechanisms
    • G04F7/0852—Watches or clocks with stop devices, e.g. chronograph with start-stop control mechanisms with member having a rotational two-way movement, e.g. navette

Definitions

  • the present invention relates to the field of watchmaking and concerns a system for mechanically starting and stopping a function.
  • starting the function we define the passage of the function, from an initial state, of rest, to a second state, active, and by stopping the function, we define the reverse passage from the active state to the state of rest.
  • the present invention aims to propose a mechanism for controlling a function, which can be used in a mechanical watch, that is to say which does not use electronic or electrical elements, and which is remedied at least partially to the disadvantages of the prior art.
  • the invention relates to a system for mechanically starting and stopping a function of a timepiece, comprising a mass, movably mounted on a frame, between a first and a second extreme positions, defined respectively by a first and a second stop, said mass moving, under the effect of gravity, by constraining a spring between the first and second extreme positions, and by relaxing said spring between the second and first extreme positions, said mass being connected kinematically or directly to a control member of said function.
  • the mass and the force of the spring are determined as a function of the force necessary to control said function and move the control member, and the predetermined spatial orientations of the frame, in which the mass is moved in a bistable manner from one to the other. other of its extreme positions, depending on the result of the forces exerted by the spring and by gravity, the movement of the mass from the first extreme position to the second extreme position being capable of causing the starting or stopping of said function by via the control member, and the movement of the mass from the second extreme position to the first extreme position being capable of causing the stopping or starting respectively of said function via the control member. piloting.
  • This definition of the invention extends to a system for controlling a function of a timepiece, capable of occupying a first state and a second state, in particular an animation.
  • the invention also relates to a watch comprising such a starting and stopping system.
  • the aim of the present invention is to provide a mechanical switch, making it possible to start and stop a function, on command, but without pressure or direct mechanical action on the switch. More precisely, the starting and stopping system according to the invention makes it possible to start and stop the function, according to the spatial orientation of the system and therefore of the watch in which it is integrated. As will be understood later, different dimensions are possible, but a preferred embodiment is to dimension and arrange the system according to the invention in such a way that the function starts when the wearer makes the usual gesture to read the time when the watch is on his wrist and the function stops when he rotates his wrist, for example to return his arm to a more vertical position.
  • the system for starting and stopping a function comprises a mass, of the oscillating mass type, movably mounted on a watch frame, between a first and a second extreme positions.
  • the latter are defined respectively by a first and a second stops, which can be elastic in order to absorb shocks.
  • a spring is connected to the mass.
  • the connection between the spring and the mass is preferably direct, so that the movements of the mass have a direct impact on the winding of the spring. More particularly, when the mass moves under the effect of gravity, following a gesture by the wearer which sets it in motion, the spring is arranged so as to be constrained by the mass when it moves between the first and the second extreme position. Conversely, when the mass moves between the second and first extreme positions, the spring relaxes and, if necessary, returns the energy stored in the mass, against gravity.
  • the mass is connected kinematically or directly to a control member of said function.
  • the connection between the mass and the control member is desmodromic.
  • This connection can be of the meshing type with a pinion or a rack carried by the mass and meshing with the control member.
  • the mass can also directly carry a magnet, which can magnetically control, for example, visual animation type functions as will be detailed below.
  • the mass (of the mass) as well as the force of the spring are determined according to the force necessary to control said function and move the control member.
  • the function is started when the wearer brings the watch to his or her gaze in a reading position.
  • the alpha angle as being the angle of rotation around the axis 9H-3H
  • the beta angle as being the angle of rotation around the axis 12H-6H
  • the gamma axis as being l angle of rotation around the orthogonal axis passing through the center of the dial.
  • the spring must also be dimensioned both in terms of its stiffness and its preload. Its function is to keep the mass abutting in its first extreme position, against gravity, until the watch has been placed in the corresponding orientation. Beyond this orientation, the force exerted by gravity is greater than the force exerted by the spring, and the mass moves starting the function.
  • the spring also has the function, when the mass is abutted in its second extreme position, of returning the mass to its first extreme position when the force exerted by gravity becomes smaller than the force exerted by the spring. The mass then stops the function.
  • a starting orientation and a stopping orientation are predetermined.
  • the mass is of the bistable type and is maintained in its first extreme position as long as the watch has not crossed the starting orientation, and is maintained in its second extreme position as long as the watch has not crossed the starting orientation. 'stop.
  • an oscillating mass of an automatic winder does not make it possible to stop the winding function.
  • the winding and non-winding positions are not not predefined and do not correspond to specific spatial orientations of the watch.
  • the ground can be connected to a speed regulator.
  • the latter can be an escapement, for example with a rubbing rest as used in certain bells, or a brake with centrifugal weights, also of the type used in bells. It is also possible to use a magnetic or oil bath brake device.
  • a ground blocking device can be provided.
  • This device is advantageously accessible from outside the watch. It may consist of a pusher or a lock cooperating directly or indirectly with the mass to block its movements, preferably in one of its extreme positions.
  • the system according to the invention could be arranged in the form of an independent module, comprising its own frame and mounted on a base movement.
  • the mechanism or components making it possible to carry out the function to be controlled may also be arranged on the frame or be arranged on the basic movement.
  • a kinematic or other connection, magnetic for example, will be provided between the module and the basic movement.
  • the system according to the invention can be used to control, that is to say start and stop, a function whose mechanism which allows it to be carried out is arranged in the watch.
  • An example of a function that can be controlled by the system according to the invention is a visual animation.
  • the visual animation can be controlled mechanically, for example by releasing or blocking a barrel, respectively when the mass is in its first or second extreme positions.
  • This barrel can drive an automaton, of the Jacquemart type, typically by driving a cam on which a mobile element is held pressed.
  • this magnet By mounting a magnet on the mass or by having a magnet driven by the mass, this magnet can cause the movement of a paramagnetic or diamagnetic mobile element, capable of reacting to the movement of the magnet by moving itself. This movement can be guided by the mounting of said movable element, for example in rotation or on a guide rail.
  • the function to be controlled is an animation, controlled by the movement of a magnet.
  • the mass is an oscillating mass 10, mounted to move in rotation. It is provided with teeth 100, meshing with teeth 120 secured to the control member, which takes the form of a lever 12, pivotally mounted on the frame of the module or timepiece.
  • the teeth 100 and 120 are advantageously incomplete, that is to say they are arranged on a toothed sector, less than 360°, given that the oscillating mass 10 is limited in its rotation between its two extreme positions, by two stops not shown. In the exemplary embodiment, the reduction ratio between the teeth is taken equal to -1.
  • the spring 14 is of the spiral type, acting on the control member, according to the example at the level of the axis of rotation of the lever, by a first of its ends. The other end is fixed to the frame.
  • the lever 12 at its end opposite its axis of rotation, carries a magnet 16.
  • the latter acts on a magnetic, mobile element, movable for example above the dial, to be visible to a user, while the system of Start and stop is hidden under the dial.
  • the spring 14 is preloaded, according to the example in a clockwise direction.
  • the spring 14 will therefore apply a torque in the clockwise direction to the lever, transmitting to the oscillating mass 10, via the gear connection, a torque tending to make it pivot in the counterclockwise direction.
  • the oscillating mass 10 is in its first extreme position, against a so-called high stop (not shown in the drawing).
  • the system is therefore in equilibrium in a first stable position.
  • the magnetic element positioned by the magnet is also in a first stable position. In this first position, it can be hidden behind a cover so as not to be visible to the wearer.
  • Couple mass d * m * gravity * sinus alpha * cosine beta Beta being the angle (with a sign according to trigonometric standards) of the center of mass relative to the 9h-3h axis ( figure 2 )
  • Couple Spring ⁇ K * Theta 0 + Beta 0 ⁇ Beta Beta0 being the Beta angle when the mass is in its first stable position.
  • the alpha angle of the watch does not vary, only the Beta angle will change, and we will seek to ensure that the evolution of the torque generated by gravity increases faster than that of the spring (by choosing judiciously the different parameters of the mass and the spring).
  • the torque only increases with the movement of the oscillating mass 10 and the passage from the first to the second extreme positions is carried out continuously, without passing through a stable intermediate position (without modification of the angle of the watch), and the mass is therefore bistable.
  • the magnetic element is also in a second stable position. In this second position, it can be visible to the wearer.
  • the oscillating mass 10 tends to rotate clockwise and therefore remains at a stop, in the second stable position.
  • the function can also be a striking mechanism, the triggering of which can be repeated by a ringing in passing.
  • the barrel is released or blocked depending on the positioning of the mass, respectively when it is in its first or second extreme positions.
  • a winding mechanism either specific or via winding of the main barrel of the movement.
  • This winding can be manual or automatic.
  • the animation or ringing mechanism can also be powered by the movement barrel, using a barrel adapted to provide energy via two power take-offs.
  • a kinematic connection with the unbalanced mass can also cause the movement of at least one movable flap on or under the main dial, a sub-dial or a part of the dial, to modify the appearance of the watch, or allow specific displays to appear.
  • Polarized lenses can be used and moved via this movable shutter(s).
  • Such shutters can also be moved by releasing a barrel, as described above.
  • the system according to the invention makes it possible to control a function by starting and stopping it, or by controlling its passage from a first state to a second state, and vice versa, when the watch occupies respectively a first and a second spatial orientations.
  • These particular spatial orientations correspond to first and second extreme positions of a mass. These positions are determined and thanks to the bistable nature of the movement of the mass, the transition from one state to another of the function is precise, corresponding to a specific spatial orientation.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Measurement Of Unknown Time Intervals (AREA)
  • Electromechanical Clocks (AREA)

Claims (14)

  1. System zum mechanischen Starten und Stoppen einer Funktion einer Uhr, mit einer Masse (10), die beweglich auf einem Gestell zwischen einer ersten und einer zweiten Endposition montiert ist, die jeweils durch einen ersten und einen zweiten Anschlag definiert sind, wobei sich die Masse unter der Wirkung der Schwerkraft verschiebt, indem sie eine Feder (14) zwischen der ersten und der zweiten Endposition spannt und die Feder zwischen der zweiten und der ersten Endposition entspannt,
    wobei die Masse kinematisch oder direkt mit einem Steuerorgan (12) für die Funktion verbunden ist,
    wobei die Masse (10) und die Kraft der Feder (14) in Abhängigkeit von der Kraft, die erforderlich ist, um die Funktion zu steuern und das Steuerorgan (12) zu bewegen, und von vorbestimmten räumlichen Orientierungen des Rahmens bestimmt werden, in denen die Masse bistabil von einer ihrer Endpositionen in die andere bewegt wird, entsprechend der Resultierenden der durch die Feder und durch die Schwerkraft ausgeübten Kräfte, wobei die Verschiebung der Masse von der ersten Endposition in die zweite Endposition geeignet ist, das Starten der Funktion über das Steuerorgan (12) zu bewirken, und die Verschiebung der Masse von der zweiten Endposition in die erste Endposition geeignet ist, das Stoppen der Funktion über das Steuerorgan (12) zu bewirken.
  2. System nach Anspruch 1, dadurch gekennzeichnet, dass die Masse drehbar gelagert ist und eine Unwucht aufweist.
  3. System nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Masse mit einem Geschwindigkeitsregler verbunden ist.
  4. System nach Anspruch 3, dadurch gekennzeichnet, dass der Geschwindigkeitsregler eine Hemmung, eine Gewichtebremse, eine Vorrichtung mit viskoser Reibung in einem Bad ist.
  5. System nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass es eine Vorrichtung zur Blockierung der Masse umfasst.
  6. System nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass das Steuerorgan einen Magneten trägt.
  7. System nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Feder so berechnet ist, dass die Orientierungen des Gestells, die den Start bzw. das Stoppen der Funktion auslösen, unterschiedlich sind.
  8. System nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass Elemente, die es ermöglichen, die Funktion auszuführen, am Gestell angebracht sind.
  9. Uhr mit einem System nach einem der vorhergehenden Ansprüche und einem Mechanismus zum Ausführen der Funktion, wobei die Masse von ihrer ersten zu ihrer zweiten Extremposition und von ihrer zweiten zu ihrer ersten Extremposition wechselt, wenn die Uhr in eine erste oder zweite räumliche Orientierung gebracht wird.
  10. Uhr nach Anspruch 9, dadurch gekennzeichnet, dass die erste und die zweite räumliche Ausrichtung ähnlich sind.
  11. Uhr nach Anspruch 9, dadurch gekennzeichnet, dass die erste und die zweite räumliche Orientierung unterschiedlich sind.
  12. Uhr nach Anspruch 11, dadurch gekennzeichnet, dass die Uhr in der ersten Orientierung einen Winkel alpha zwischen 30 und 35°, Beta =0°, Gamma=0° und in der zweiten Orientierung einen Winkel alpha zwischen 15 und 18°, Beta =0°, Gamma=0° aufweist.
    wobei der Winkel alpha der Drehwinkel der Uhr um eine Achse ist, die durch die Positionen 9H und 3H des Zifferblatts verläuft, wobei alpha gleich 0 ist, wenn das Zifferblatt horizontal liegt, der Winkel beta als der Drehwinkel um die Achse 12H-6H und die Achse gamma als der Drehwinkel um die orthogonale Achse, die durch die Mitte des Zifferblatts verläuft.
  13. Uhr nach einem der Ansprüche 9 bis 12, wenn diese von Anspruch 5 abhängen, dadurch gekennzeichnet, dass die Vorrichtung zum Blockieren der Masse von der Außenseite der Uhr zugänglich ist.
  14. Uhr nach einem der Ansprüche 9 bis 13, dadurch gekennzeichnet, dass der Mechanismus aus einem Chronographenmechanismus, einem Schlagwerkmechanismus, einem Mechanismus für visuelle Animation ausgewählt ist.
EP21711842.1A 2020-03-20 2021-03-10 Mechanisches stopp- und startsystem für eine funktion und uhr mit einem solchen system Active EP4121822B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH00340/20A CH717249A1 (fr) 2020-03-20 2020-03-20 Système de démarrage et d'arrêt d'une fonction et montre comportant un tel système.
PCT/EP2021/056102 WO2021185655A1 (fr) 2020-03-20 2021-03-10 Systeme de demarrage et d'arret mecanique d'une fonction et montre comportant un tel systeme

Publications (2)

Publication Number Publication Date
EP4121822A1 EP4121822A1 (de) 2023-01-25
EP4121822B1 true EP4121822B1 (de) 2024-05-01

Family

ID=70616881

Family Applications (1)

Application Number Title Priority Date Filing Date
EP21711842.1A Active EP4121822B1 (de) 2020-03-20 2021-03-10 Mechanisches stopp- und startsystem für eine funktion und uhr mit einem solchen system

Country Status (6)

Country Link
US (1) US20230139184A1 (de)
EP (1) EP4121822B1 (de)
JP (1) JP2023518037A (de)
CN (1) CN115280248A (de)
CH (1) CH717249A1 (de)
WO (1) WO2021185655A1 (de)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4361739A1 (de) * 2022-10-27 2024-05-01 Dubois & Depraz S.A. Funktionsauswahlsystem für eine uhr

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH4882A (fr) * 1892-02-08 1892-09-15 Normanville Samuel Augustine D Réveil-matin perfectionné
US1712013A (en) * 1925-09-22 1929-05-07 Watson Robert Automobile clock
US3165883A (en) * 1962-06-14 1965-01-19 Lnt Entpr Fast draw timer
US3541781A (en) * 1968-09-09 1970-11-24 Walter L Bloom Apparatus for measuring time spent standing or walking
US3948037A (en) * 1975-01-22 1976-04-06 Carlone Eugene R Wrist position-actuatable switch
DE602006015261D1 (de) * 2005-07-08 2010-08-19 Richemont Int Sa Uhr
CH712372B1 (fr) * 2016-04-18 2020-12-30 Jerome Marcu Montre-bracelet ou montre de poche incluant un dispositif d'affichage.

Also Published As

Publication number Publication date
CN115280248A (zh) 2022-11-01
WO2021185655A1 (fr) 2021-09-23
EP4121822A1 (de) 2023-01-25
US20230139184A1 (en) 2023-05-04
CH717249A1 (fr) 2021-09-30
JP2023518037A (ja) 2023-04-27

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