EP3889692A1 - Anzeigemechanismus einer uhr mit getrennten displays - Google Patents

Anzeigemechanismus einer uhr mit getrennten displays Download PDF

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Publication number
EP3889692A1
EP3889692A1 EP20203641.4A EP20203641A EP3889692A1 EP 3889692 A1 EP3889692 A1 EP 3889692A1 EP 20203641 A EP20203641 A EP 20203641A EP 3889692 A1 EP3889692 A1 EP 3889692A1
Authority
EP
European Patent Office
Prior art keywords
display
elementary
movement
movable
displays
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
EP20203641.4A
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English (en)
French (fr)
Inventor
Berhnard Karl LEDERER
Cyrille Bernard
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.)
Harry Winston SA
Original Assignee
Harry Winston 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 Harry Winston SA filed Critical Harry Winston SA
Publication of EP3889692A1 publication Critical patent/EP3889692A1/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
    • G04B19/02—Back-gearing arrangements between gear train and hands
    • 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
    • G04B19/04—Hands; Discs with a single mark or the like
    • G04B19/048—Hands; Discs with a single mark or the like having the possibility of indicating on more than one scale, e.g. hands with variable length which work on different scales
    • 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
    • G04B19/20—Indicating by numbered bands, drums, discs, or sheets
    • 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
    • G04B19/20—Indicating by numbered bands, drums, discs, or sheets
    • G04B19/21—Drums
    • 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
    • G04B19/257—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 drum-shaped or three-dimensional shaped
    • 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
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F11/00—Indicating arrangements for variable information in which the complete information is permanently attached to a movable support which brings it to the display position
    • G09F11/02—Indicating arrangements for variable information in which the complete information is permanently attached to a movable support which brings it to the display position the display elements being secured to rotating members, e.g. drums, spindles

Definitions

  • the invention relates to a clockwork display mechanism, for a timepiece, comprising at least one three-dimensional display medium, which is arranged for the simultaneous display of at least a first quantity on a first three-dimensional display. under the action of a first control mechanism, and of a second quantity on a second three-dimensional display under the action of a second control mechanism.
  • the invention also relates to a timepiece, in particular a watch, comprising such a display mechanism.
  • the invention relates to the field of clockwork display mechanisms, for complicated timepieces.
  • the aim of horological complications is to offer demanding users timepieces capable of performing complex functions, and / or comprising innovative displays.
  • the difficulty still lies in reconciling the very elaborate mechanisms of these timepieces with the low volume available when it comes to watches, and ensuring correct and intuitive readability for the user.
  • the other constraint is the reliability of these mechanisms, which must go hand in hand with the guarantee of the chronometric qualities of the basic movement, which must not be altered by the addition of complications.
  • the invention proposes to produce a watch with displays which are both innovative and extremely logical, and therefore easy to read by the user.
  • the invention relates to a clockwork display mechanism, for a timepiece, comprising a plurality of distinct elementary display supports, according to claim 1.
  • the invention also relates to a timepiece, in particular a watch, comprising such a display mechanism.
  • the invention relates to a timepiece, in which the display of the quantities is distributed at the level of several entities, each activated at a particular time.
  • the display of temporal quantities is broken down into slices, in particular into equal slices.
  • a single entity displays at a given moment the current time.
  • the invention seeks to use the same entity for the display of two different horological magnitudes, for example hours and minutes.
  • the choice of 12 entities for the display of the hours leads to use these same entities for the display of the minutes in 5-minute increments. Any rational combination of multiple integers allows for logical displays.
  • displaying the time on 24 entities would logically lead to displaying the minutes in 2.5-minute increments on each of them, which is impractical, but may be sufficient for street furniture clocks, or similar.
  • the invention thus relates to a clockwork display mechanism 100, for a timepiece 1000, in particular a watch, comprising at least one three-dimensional display support 10, which is arranged for the simultaneous display of at least a first quantity on a first three-dimensional display 901 under the action of a first control mechanism, and a second quantity on a second three-dimensional display 902 under the action of a second control mechanism.
  • the first display 901 surrounds the second display 902, or vice versa.
  • the first display 901 surrounds the second display 902 and are juxtaposed within the same display support 10.
  • the first control mechanism and the second control mechanism can be operated independently of one another, and constitute separate mechanisms, one for controlling in translation and the other for controlling in rotation, or Conversely.
  • the display mechanism 100 comprises a plurality of such elementary display supports 10. And, at a given instant, a single first display 901 displays the instantaneous value of the first quantity, and a single second display 902 displays the instantaneous value of the second quantity.
  • the display mechanism 100 also comprises first optical means for signaling to the user which first display 901 displays the instantaneous value of the first quantity, and comprises second optical means for indicating to the user which second display 902 displays the value. instantaneous of the second magnitude.
  • the first display 901 or the second display 902 comprises, for the determination of its instantaneous validity, an optical indicator 14 which is visible by the user only when the display 901 or 902 which carries it displays the instantaneous value of the magnitude displayed by this display 901 or 902.
  • the display comprises a valve 16, which is movable between an activated position where the valve 16 allows the optical indicator 14 to be seen and a deactivated position where the valve 16 hides the optical indicator 14 from the user.
  • the display mechanism 100 comprises an actuator 2, which is arranged to control the maneuver towards the activated position of the valve 16 at the level of a single elementary display support 10 at a time, and to control, at the same time, the operation.
  • valve 16 placing in deactivated position or maintaining in deactivated position of the valves 16 of all the other elementary display supports 10.
  • the function of this valve 16 here is to show the user which display is valid at a given time, the illustrated variant indicates especially which five-minute slot is in progress at the time in question.
  • a valve can constitute in itself a third or a fourth display, for a complementary display such as day / night, AM / PM, time zone, or other.
  • the first display 901 or the second display 902 comprises, for the determination of its instantaneous validity, a dynamic index 307, which is movable with respect to an index static 308 that carries a fixed part of the display mechanism 100.
  • This dynamic index 307 and this static index 308 are arranged to come into alignment or in superposition, when the display 901 or 902 which carries it displays the instantaneous value of the quantity displayed on this display 901 or 902.
  • the display mechanism 100 comprises a plurality of separate elementary display supports 10 on which the display of at least a first quantity and / or a second quantity is broken down, by splitting over distinct ranges. More particularly, these distinct elementary display supports 10 comprise identical mechanical components, only the elements specific to the display may differ from one another, they are referred to here as “similar” elementary display supports 10. .
  • all of the elementary display supports 10 include display indicators of the same type, which are either first displays 901 for displaying a first quantity, or second displays 902 for displaying a quantity. a second quantity, or both of the first displays 901 and of the second displays 902. All the display indicators are arranged so as to be visible to the user of the timepiece 1000, and the display mechanism 100 comprises a control mechanism 300, which is arranged to drive wheels or drive linkages of the different display mobiles that the display mechanism 100 comprises.
  • This control mechanism 300 comprises a first trainer 111, arranged to be driven by a timepiece movement 200 and drive alone all the first displays 901 when it includes them, and / or includes a second trainer 112, arranged to be driven by a timepiece movement 200 and drive alone all second displays 902 when it includes them.
  • the display mechanism 100 comprises, in each elementary display medium 10, at least a first display 901 and a second display 902, which are coaxial with one another.
  • the actuator 2 comprises a cam which is arranged to control, directly or indirectly through at least one rocker with two arms, the stroke of at least one feeler 19 to push a valve 16 along a linear stroke, this feeler 19 being returned to bear towards the cam 2 by elastic return means 190 or 497.
  • the display 901 or 902 which comprises an optical indicator 14 and a valve 16 comprises a movable support or a piston 8, relative to which the valve 16 is movable between the activated position where the valve 16 allows the indicator to be seen.
  • This optical indicator 14 is in particular, but not limited to, carried by the movable support or piston 8 or by the valve 16.
  • valve 16 is linearly movable between an activated position and a deactivated position relative to the movable support or piston 8, which is itself movable linearly in the same direction between two end-of-travel positions.
  • each first display 901 is animated with a periodic movement
  • each second display 902 is animated with a periodic movement
  • the pitch of one of the two is an integer multiple of the pitch of the other, or vice versa.
  • the display mechanism 100 comprises a single elementary display support 10, and the first display 901 and the second display 902 are arranged for displaying hours and minutes, or for displaying minutes and hours. seconds.
  • this mechanism can take the form of a single-cylinder engine comprising a wandering jacket in rotational movement and a reciprocating piston, each constituting one of the displays.
  • the display mechanism 100 comprises a plurality of similar elementary display media 10, each first display 901 being arranged for the display of a limited amplitude range and which is an integer sub-multiple of the total range. display of the first quantity, and each second display 902 being arranged for displaying a limited amplitude range and which is an integer sub-multiple of the total display range of the second quantity.
  • the invention also relates to a timepiece 1000, in particular a watch, comprising a timepiece movement 200 arranged to drive at least one such display mechanism 100.
  • this display mechanism 100 comprises a control mechanism. 300 which comprises at least a first trainer 111, arranged to be driven by a mobile of the clockwork movement 200, in particular a minute mobile, and / or a second trainer 112 arranged to be driven by a mobile of the clockwork movement 200 , in particular an hours mobile, to directly or indirectly drive each first display 901 and each second display 902.
  • This clockwork display mechanism 100 comprises a plurality of separate elementary display supports 10 each extending in a direction parallel or coincident with a radial elementary axis DA, and all distributed around a central axis D.
  • elementary axis DA is in particular a radial axis, perpendicular to the central axis D, or is a direction parallel to such a radial axis.
  • the timepiece 1000 adopts the shape of a star or double star aircraft engine, each radial cylinder enclosing here, without limitation, an elementary display support 10.
  • This display mechanism 100 is arranged for displaying the value of at least one quantity on the plurality of elementary display media 10.
  • each elementary display medium 10 is a substantially cylindrical body, extending radially with respect to the central axis D around a structure 900, and which protrudes radially from the structure 900.
  • This elementary display medium 10 contains at least one display indicator of the value of a quantity, which display indicator is either a first display 901 movable in translation along its elementary axis DA, or else a second display 902 movable in rotation about its elementary axis DA.
  • the first display 901 and the second display 902 are either both movable in translation in a direction parallel or coincident with a radial elementary axis DA which is perpendicular to the central axis D, or else both movable in rotation coaxial with respect to a direction parallel or coincident with such an elementary radial axis DA, or else one of the first display 901 and second display 902 is movable in translation in a direction parallel or coincident with such an elementary radial axis DA and the another of these first display 901 and second display 902 is rotatable relative to a direction parallel or coincident with such a radial elementary axis DA.
  • all the elementary display supports 10 are similar, and include display indicators of the same type, which are either first displays 901 for displaying a first quantity, or second displays 902 for displaying a second magnitude, or both first displays 901 and second displays 902. More particularly, the display indicators 901, 902 are substantially of revolution, in particular of cylindrical shape.
  • the display mechanism 100 comprises a control mechanism 300, which is arranged to drive, around the common axis D, the wheels or drive linkages of the various display mobiles that the display mechanism 100 comprises. .
  • the display mechanism 100 comprises a first display 901 in each elementary display medium 10, and each first display 901 comprises a first optical indicator 14, which may or may not be hidden by a valve 16 which is movable linearly in the direction of the elementary axis DA, between an activated position and a deactivated position, for the validation or respectively the invalidation of a value of the first quantity.
  • control mechanism 300 comprises a first actuator which is arranged to control, at the level of a single elementary display support 10 at a time, the placing in the activated position or the maintenance in the activated position of the valve 16, and to control , at the same time, the placing in the deactivated position or respectively the maintenance in the deactivated position of the valves 16 of all the other elementary display supports 10.
  • this first actuator comprises a cam 2 which controls, directly or indirectly through at least one lever with two arms, the stroke of at least one feeler 19 in order to push such a valve 16 along a linear stroke, which is arranged to hide or show a first optical indicator 14.
  • this cam 2 is very simple, is flat, and comprises, with respect to an annular structure, a protuberance 201 concentric with this annular structure, and projecting radially towards the 'exterior, connected by two 206 radiated ramps.
  • the probe 19 comprises a rectilinear foot 490, which comprises a guide oblong 496 around a bearing screw bearing directly on the cam tracks which extend on the edge of the cam 2: upper 208, lower 209, and ramps 206, and the part 495 forming a U, furthest from the center of the cam 2, directly controls the valve 16.
  • the feeler 19 which comprises, at the upper end of a candle, a first upper arm 191 for controlling the valve 16 of a first cylinder, and a second upper arm 192 for the control of the valve 16 of a second cylinder, is controlled in rotation by a pivoting rocker in the lower part of this candle, and which comprises two lower arms, which together form a vee which is supported on the periphery of the cam 2 and follows this periphery, this rocker pivots in a first direction when climbing on the protuberance, then in the other direction when descending.
  • cam 2 controls the minutes, and makes one revolution per hour.
  • the feeler 19 comprises at least one elastic arm 190, or 497, depending on the variant, which is arranged to bear on the structure 900, or 498, and which tends to push the probe 19 back towards the cam 2.
  • the valve 16 is movable in translation parallel to a direction parallel or coincident with a radial elementary axis DA, or is movable in rotation with respect to a direction parallel or coincident with a radial elementary axis DA.
  • each valve 16 is linearly movable between an activated position and a deactivated position relative to a movable support 8, which the first display 901 comprises, and which is itself movable linearly in the same direction of the elementary axis DA , between two end-of-travel positions.
  • each movable support 8 is a piston, movable linearly between its two end-of-travel positions with a periodic movement.
  • the first display 901 comprises a jumper 17, in particular in the form of a square, which is arranged to hold the valve 16, in the engaged position, against a hooking part 18 which is fixed to the movable support 8, or piston, in particular at the level of a notch, and to allow its release during the retraction of the probe 19 and the reversal of direction of the mobile support 8.
  • the display mechanism 100 comprises a first display 901 in each elementary display medium 10, and the first driver 111 comprises a crankshaft 1, which is arranged to be driven by a clockwork movement 200. At least one crankpin 41 of this crankshaft 1 drives at least one plate 40, which carries connecting rods, fixed 4, or articulated 5, each arranged to move a first display 901 in a reciprocating linear movement back and forth.
  • the display mechanism 100 comprises a second display 902 in each elementary display medium 10, and each second display 902 comprises a second optical indicator which is movable linearly in the direction of the elementary axis DA, between an activated position and a deactivated position, for determining a value of the second quantity, and the control mechanism 300 comprises a second actuator which is arranged, to control, at the level of a single elementary display medium 10 at the same time, placing the second optical indicator in the activated position or keeping it in activated position, and to command, at the same time, the deactivation or respectively the maintenance in the deactivated position of the second optical indicators of all other elementary display media 10.
  • the display mechanism 100 comprises a second display 902 in each elementary display medium 10.
  • the second display 902 comprises a tubular body 30, which bears at least one identification marking and which comprises at least one cutout and / or a transparent surface to leave visible to the user any constituent that comprises the display mechanism 100 and which is housed in the tubular body 30.
  • control mechanism 300 comprises a gear train with return mechanisms to drive all of the second displays 902 in a synchronized manner.
  • each elementary display support 10 comprises a chamber, which is sealed to the external environment of the timepiece 1000 carrying the display mechanism 100, and in which each display indicator 901, 902 is movable.
  • the structure 900 is an additional board arranged to be placed above a timepiece movement 200.
  • the structure 900 is the middle part or the case of the timepiece 1000 enclosing a timepiece movement 200.
  • the display mechanism 100 comprises, at the level of the interface between the display mechanism 100 and the clockwork movement 200, an adjustable friction-type mobile, engaged on the movement 200 to allow the adjustment, in particular the time setting, of the display mechanism 100 by the winding and time-setting rod of the movement 200.
  • the timepiece 1000 adopts the general shape of an airplane engine in a star, or more precisely in a double star, with two stages of cylinders 10, which are radial with respect to an axis central D, and axially offset to cooperate with two stages of crankshaft 1, like the famous “Pratt & Whitney® R-2800” 18-cylinder double-star aircraft engine.
  • These cylinders 10 are fixed to a structure 900, and surround it.
  • This structure 900 can be the middle part or the case of the timepiece, or an element attached to this middle part or to this case like an additional plate, and the cylinders 10 can protrude radially from this structure, as illustrated.
  • this timepiece 1000 can also adopt a single star shape, with all the cylinders in the same plane.
  • the particular and non-limiting choice of a display on several levels of stars is primarily intended to simplify the movement distribution crankshaft in the cylinders, while limiting the diameter of the timepiece to a reasonable size.
  • Each cylinder 10 comprises a transparent part, formed by an envelope 20, and through which the user can see at least one display mobile. Depending on the configuration chosen, these mobiles can be solid, perforated, or even transparent and bear a marking.
  • the number of cylinders chosen depends on the application chosen: for example and not limited to three, six, twelve or twenty-four for the display of the hour, six, ten, twelve or fifteen for the display of the minutes. or seconds, seven for the day of the week display, three, four, six or twelve for the month display, four, six, eight or twelve for the date display, four for the day display he single or leap year, the only limits are those of the complexity and volume of the mechanism associated with the complication selected.
  • the hours are displayed by means of indexes that comprise twelve rotating hour bodies 30, each housed in a cylinder 10 (at a rate of six per stage in this particular embodiment). , at the rate of one rotation in 12 hours for each index.
  • another display of the minutes is carried out, in five-minute increments, by twelve pistons 8, which circulate linearly in the twelve hour bodies 30, with the indication of the 5-minute period which is in progress, by means of an optical indicator 14, made visible by a valve 16 open at the level of the piston 8 concerned, and easily visible to the user.
  • the hours are thus displayed on substantially cylindrical hour bodies 30 housed in cylinders 10.
  • These hour bodies 30 may comprise cut-out metal cylindrical cages, or the like, or else tubes made of transparent material, in particular. sapphire or the like, bearing a marking, by metallization or laser engraving or otherwise, with the corresponding hour digits 301; the movement 200 of the timepiece 1000 drives each hour body 30, cage or tube so as to make two revolutions in 24 hours.
  • Each cylinder 10 comprises a sealed envelope 20 for receiving this hour body 30 which surrounds a piston 8, this envelope 20 is transparent on at least one side visible to the user of the watch for reading the time, and is for example sapphire or the like.
  • This cylinder 10 can either be attached to the structure 900 or the caseband of the watch, or else form part of this structure 900 or of this caseband or of the case of the watch.
  • the cylinder 10 whose legible numerical inscription on its hour body 30 faces directly the user is the active cylinder which provides the display of the current time.
  • this cylinder 10 which is active for the display of the time is visually materialized by the very visible alignment of a dynamic index 307 carried by the hours body 30, and a static index 308 which carries the cylinder 10, the supporting structure 900, the caseband, or the box.
  • This concordance can be a visual concordance, it can also be mechanical, electrical, or magnetic, so as to reveal an active cylinder indicator of the hours.
  • the hours body 30 may comprise, on the side of the structure 900, a lug, or a notch, or a cam, to cooperate with a lever housed in the structure 900 to the right of the cylinder, and whose pivoting shows a flag in a window, as known from the patent EP2595006 in the name of BLANCPAIN SA, or similar.
  • the cooperation of magnets of the same polarity or of opposite polarity, carried by the hour body 30 and the structure 900 also allows the control of such a flag.
  • an electrical contact in alignment with the indexes of the hour body 30 and of the structure 900 allows the control of a lighting function, or the like.
  • the display of the current minute is carried out in each 5-minute segment by means of graduations 306 carried on the cylinders 10, or on the envelopes 20, or on the hour bodies 30; these graduations 306 can be equidistant, or else as here non-linear, because they depend on the linkage kinematics used; a mark on the piston 8, or the distal end of the piston 8, or the colored mark 140 on the valve 16, is easily readable against this graduated scale.
  • the hours display more particularly comprises a 30 hours body which is a metal component with cut out hour digits 301, which makes it possible to improve visibility and readability.
  • crankshaft plate with twelve connecting rods is conceivable, the size and the fragility of the mechanism lead to prefer solutions with several crankshaft plates 40 each resulting in a submultiple of 12: the illustrated version has two crankshaft plates 40 superimposed, each capable of controlling six pistons, with their trigger mechanism allowing the differentiation of the piston 8 which displays the current minute.
  • the movement 200 transfers the energy, through cogs, to a movement output mobile which drives the crankshaft 1, a minute release cam 2, and the hour pinions 3.
  • Crankshaft 1 is a key part, both in terms of its distribution function and in terms of its visual impact. Due to its many functions, it is necessary to have an extremely precise component, which is why it is advantageous to have a single-piece component, in particular guided between a stone on the one hand and a screwed bearing on the other go. This arrangement limits the risks of positioning faults linked to the overhang, and those linked to the accumulation of tolerances of an assembly, and also makes the component more reliable in order to maintain its high precision in the long term.
  • crankshaft plates 40 In the illustrated version comprising two crankshaft plates 40, these two plates 40 each pivot around a crank pin 41 of the crankshaft 1, and each carries six connecting rods, one of which may be integral with the plate to form with it a large fixed connecting rod. 4, the other small articulated connecting rods 5 pivot on plate pins 7 driven out on the plate 40. The rotation of the large connecting rod must be as fluid as possible.
  • a damper hub 6 is advantageously placed between the crankpin 41 of the crankshaft and the associated plate 40.
  • a treatment galvanic type Nickel PTFE provides a pivot point with good anti-seize and self-lubricating characteristics; the coefficient of static friction can thus be lowered to 0.15, and the coefficient of dynamic friction can be lowered to 0.10. This same galvanic treatment is also advantageously applied to the connecting rod-pin connections.
  • Each connecting rod 4, 5 penetrates inside a piston 8, which comprises, in a radial bore, a fixing pin 9 around which its connecting rod pivots.
  • the piston 8 must work freely with a degree of freedom perpendicular to the connecting rod in question; for this purpose the piston 8 has, for the passage of this connecting rod, an opening which is wide enough to allow the maximum working angles of the connecting rod.
  • the fixing pin 9 is difficult to access for maintenance, and the piston 8 circulates in a highly visible area for the user, and therefore it is preferable to avoid any liquid lubrication causing at least visual pollution: the connection between the fixing pin 9 and its respective connecting rod is preferably also treated with a galvanic treatment of the Nickel PTFE type or the like.
  • the piston 8 must have the best possible guidance, both precise and very fluid to prevent any risk of seizing and blocking of the mechanism.
  • the figures illustrate a guide of the piston 8 by two rods 12, here without limitation placed inside a cylindrical tube 20 made of sapphire.
  • the piston 8 has two lateral notches 81 for receiving intermediate guides 13, or buffer pieces, which provide sliding guidance for the rods 12.
  • a galvanic treatment of the Nickel PTFE or similar type is advantageous in order to reduce the coefficient of friction. and obtain a self-lubricated contact.
  • the intermediate guides 13 are preferably substantially diametrically opposed, which ensures optimum distance and good guidance of the piston 8 on these rods 12.
  • Another type of guidance consists in guiding the piston 8 externally on the inner wall of a transparent tube 20, made of glass or sapphire, or the like, with in particular the interposition of buffer rings housed in circular grooves of the piston 8, and which buffer rings provide guidance in this transparent tube.
  • the mechanism controls the triggering of the corresponding piston 8, by closing the valve 16 of the piston 8 of the 5-minute period which has just ended, and by the opening of the valve 16 of the piston 8 corresponding to the new period of 5 minutes which begins.
  • This visual mark 14 can naturally be used as an index, when the cylinder 30, or a transparent tube 20 which it comprises, has graduations 306, to determine the current minute within 5 minutes.
  • the piston 8 comprises a piston body 15, and a valve 16, which makes the visual mark 14 visible once triggered, and which otherwise hides it, and which has a limited axial travel with respect to the piston body 15
  • the valve 16 is pushed radially towards the outside of the watch, during the triggering, by a valve control mechanism which will be presented below.
  • an elastic mechanism comprising a jumper 17 which maintains this valve 16 against a hooking part 18 fixed to the piston body 15.
  • the valve control mechanism more particularly comprises a minute mobile 201, in particular a ring or a minute disc, which carries the cam 2, and is driven by the movement 200 of the watch 1000 and makes one revolution per hour.
  • This cam 2 comprises a radial projection 202 with an upper track 208 of greater diameter than that of a lower track 209 which the rest of the cam 2 comprises, and to which it is joined by ramps 206.
  • the cam 2 is arranged for radially push a feeler 19, specific to each piston 8, and which is guided in a fixed part of the structure 900, of the middle part, or of the watch case, and which penetrates into the piston 8, and is arranged to push the valve 16 during activation.
  • This probe 19 advantageously comprises a spring arm 190, which bears on this same fixed part, to ensure its retention on the cam 2. At the end of the 5 minutes, the probe 19 leaves the upper track 208 of the projection 202 of the cam 2. and falls back on the lower track 209, and the spring arm 190 pushes it back towards the center of the movement, thus releasing the valve 16.
  • the pistons 8 are engaged at the end of each 5-minute period, when the piston 8 reaches the bottom of its respective cylinder radially, in its position furthest from the center of the movement.
  • the piston 8 is then operated by its respective connecting rod 4 or 5, against the jumper 17, also towards the center of the movement, and this maneuver by the connecting rod re-engages the valve 16 of this piston 8 in the closed position.
  • the movement 200 drives a series of 3 hours pinions, at the rate of a 3 pinion to drive each 30 hours body.
  • the 200 movement drives a central brass wheel 309, comprising an annular bearing surface, the internal right toothing of which is meshes with straight intermediate steel gears 302; these pinions 302 each mesh with a straight-toothed brass plate 303 which carries a conical intermediate steel wheel 304; the latter meshes with a gear 305 at 45 ° with straight teeth made of steel, which engages a conical 3 hour pinion also made of steel.
  • the hour body 30 is advantageously made of a light alloy, for example an aluminum or titanium alloy.
  • the piston 8 and the valve 16 are preferably made of steel with a DLC coating or the like at their contact surfaces.
  • the figures illustrate the preferred variant where the hour bodies 30 are rigid structures, in particular but not limited to metal.
  • a machined tube representing the number or digits 301 of the hour displayed in a given cylinder 10 provides good readability, and is also easier to attach to the 3 hours pinion, by traditional watchmaking means: screwing, riveting, driving, or other.
  • this or these digits 301 are also advantageously supplemented by a visual dynamic index 307 intended to be aligned with a static index 308 so as to remove any doubt for the user.
  • Each hour pinion 3 is preferably a bevel pinion, which cooperates with a bevel wheel 34, of axis parallel to the central axis D of the movement 200, directly or as here through a return 305 inclined at 45 ° visible in the figures.
  • the guiding of a block consisting of the hours body 30 and its 3 hours pinion is advantageously carried out by a ball bearing block 22, fixed to the structure 900, or to the caseband or to the case, and which guarantees a good positioning accuracy while ensuring low energy consumption by friction.
  • This ball bearing unit 22 is advantageously combined in a sealed bearing with the at least partially transparent casing 20 which is used to surround both the hours body 30 and the piston 8 which it contains.
  • the timepiece 1000 which comprises a timepiece movement 200, advantageously comprises a plurality of barrels 50 in parallel and / or in series, the resulting single output 51 of which supplies a gear train multiplier 52, which feeds at least one crankshaft 1, which feeds an equalizer winder 53, which feeds the escapement 54 which cooperates in a conventional manner with the oscillator 55.
  • the paralleling of the barrels 50 makes it possible to release a large torque for the crankshaft 1.
  • the equality winder 53 releases a known, controlled and optimal force for the regulator 55.
  • the timepiece 1000 comprises two energy circuits, one for supplying the crankshaft 1, and the other for supplying the oscillator 55.
  • At least two first barrels 501, or groups of barrels are in parallel, feed the crankshaft 1 of the display mechanism 100 via a first multiplier gear 56, which is itself regulated by a first escape mechanism 57 under the control of a geometric trigger mechanism 58.
  • At least one second independent barrel 502, or group of barrels feeds the oscillator 55 through a second multiplier gear 59 and a second escape mechanism 54.
  • the geometric trigger mechanism 58 of the first gear multiplier 56 is kinematically linked and regulated by the second multiplier gear 59 regulated by oscillator 55.
  • Extrapolations can also include one or more cylinders 10 dedicated to different displays, for example, in addition to the hours / minutes display described herein, a day / night or AM / PM display in an additional cylinder. Or even a day / night or AM / PM display in an envelope 20 coaxial with the minute piston and the hour body: for example a cylinder10 may include, from its axis towards its periphery: the minute piston 8, the body of '30 hours, a transparent envelope with marking for day / night, another transparent envelope with marking for AM / PM.
  • first displays 901 and second displays 902 can be reversed, the first then surrounding the second.
  • a variant with a transparent tubular double envelope and a polarizer also allows a special display.
  • the invention relates to a watch, comprising a case containing a movement and a display mechanism, arranged between the back of the case and the crystal.
  • This display mechanism comprises several distinct elementary displays.
  • the case conventionally comprises a caseband, a bezel bearing an upper crystal, and a caseback bearing or not a lower crystal.
  • the mobile elementary displays are each housed in an elementary chamber which communicates with the main chamber which contains the movement, the sealing of the box ensuring that of all the chambers.
  • These elementary displays are each housed in a protuberance forming a protuberance of the box, each protuberance comprising an elementary chamber.
  • the display of the same horological quantity is distributed over several of these elementary displays.
  • Each elementary chamber resembles an engine cylinder, and the envelope of this elementary chamber, formed by one of these protuberances, comprises at least one transparent part, which is arranged to allow the user to see the position of the display.
  • elementary corresponding.
  • a transparent portion of each elementary chamber shell is on the ice side of the timepiece.
  • Each elementary display looks like a cage, or a motor piston moving in a cylinder, or a shuttle in a loom of a loom, and circulates in its own elementary chamber.
  • Each elementary display circulates in its elementary chamber without contact with the internal surface of the protuberance.
  • the elementary display has its own guide support, rolling bearing on which a rotary elementary display pivots, or guide rod on which slides an elementary display in translation.
  • the internal surface of the envelope of the elementary chamber, nor the external surface of the elementary display to be cylindrical.
  • an execution of the cylindrical type, with a large radial play to avoid any friction which could penalize the efficiency, is both economical and aesthetic.
  • the supporting structure of this guide support is integral with the movement plate.
  • Each elementary display is animated by a linear movement, or rotation, inside its elementary chamber.
  • the elementary displays are arranged in a star, and more particularly in a full and regular star over 360 °. More particularly, they are arranged around or above the movement.
  • the timepiece resembles an airplane engine in a star, or in a double star (two levels of superimposed stars), and each branch of the star of which has one or more elementary displays.
  • the elementary chambers are arranged radially with respect to a common axis, around which a control mechanism of the timepiece drives wheels or drive linkages of the various display mobiles, by a cam mechanism, and / or crankshafts and connecting rods for linear movements, and / or by a cog for rotary movements.
  • the elementary chambers are arranged in a vee with respect to each other.
  • Each elementary display is arranged to give an indication on only a part of the total range of the horological quantity which is displayed. They are functionally in series, each in turn displaying the instantaneous information.
  • each elementary display in its elementary chamber is different from the course of the other elementary displays in their respective elementary chambers.
  • the elementary displays have synchronous movements in their respective elementary chambers.
  • a single elementary display displays the instantaneous value of the quantity
  • the timepiece comprises a triggering mechanism which operates a display indicator, specific to each elementary display, between an active position or an inactive position, this display indicator being visible to the user and allowing him to identify simply and quickly the elementary display which displays the instantaneous value of the quantity.
  • a single elementary chamber can contain several elementary displays, of different types, superimposed on one another, in particular nested one inside the other.
  • the watch comprises, for the display of the hours, twelve perforated or transparent rotating cages, which are driven from the movement by a cog.
  • the watch comprises, for the display of the minutes, linear movement pistons, which are driven from the movement by a linkage and cams, by a crankshaft or camshaft system. These pistons circulate inside the rotating cages, the user can see the longitudinal position of each piston.
  • a device indicates that of the cylinders where it reads the minutes (in five-minute increments), and the longitudinal stroke of the piston in the chamber. corresponding determines the reading of the minute within the five-minute period.
  • the timepiece comprises, for the display of the minutes, linear movement shuttles, which are driven from the movement by a linkage and cams. These shuttles circulate inside the rotating cages which are partially transparent or perforated, so as to allow the user to see the longitudinal position of each shuttle. And each shuttle caps a display indicator, or is capped by a display indicator, which is controlled by the trigger mechanism to complete a linear stroke with respect to its shuttle, to indicate to the user its activity or inactivity.
  • the invention makes it possible to produce a very dynamic, reliable and readable large-complication mechanical display, with a reasonable size which is compatible with a wristwatch.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Electromechanical Clocks (AREA)
  • Electric Clocks (AREA)
EP20203641.4A 2020-04-03 2020-10-23 Anzeigemechanismus einer uhr mit getrennten displays Pending EP3889692A1 (de)

Applications Claiming Priority (1)

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EP20203649.7A Pending EP3889693A1 (de) 2020-04-03 2020-10-23 Anzeigemechanismus einer uhr mit getrennten anzeigeelementen
EP20203641.4A Pending EP3889692A1 (de) 2020-04-03 2020-10-23 Anzeigemechanismus einer uhr mit getrennten displays
EP21717781.5A Pending EP4127837A1 (de) 2020-04-03 2021-04-01 Uhrwerksanzeigemechanismus mit getrennten anzeigen

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US (2) US20230124960A1 (de)
EP (3) EP3889693A1 (de)
JP (2) JP2023520381A (de)
CN (2) CN116047881A (de)
CH (2) CH717321A2 (de)
WO (2) WO2021198436A1 (de)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1705535A1 (de) * 2005-03-23 2006-09-27 Urwerk S.A. Uhr mit Zeitperiodeanzeige
CH700615A1 (fr) * 2009-03-26 2010-09-30 Louis Vuitton Malletier Sa Pièce d'horlogerie.
CH701653B1 (fr) * 2006-12-15 2011-02-28 Chronode Innovation & Dev J F Mojon Dispositif d'affichage pour pièce d'horlogerie.
EP2595006A1 (de) 2011-11-17 2013-05-22 Blancpain S.A. Mechanische Anzeigevorrichtung für die Zustandsveränderung eines halbschnell oder schnell weiter springenden Anzeigemechanismus

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH702127B1 (fr) 2007-05-25 2011-05-13 Paul Hartzband Pièce d'horlogerie munie d'un tour d'heures variable.
CH717766A8 (de) 2020-08-19 2022-10-14 Creaditive Ag Vorrichtung zur Verbesserung der Anzeige der Zeit in einer Uhr mit mehreren Zylindern.

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1705535A1 (de) * 2005-03-23 2006-09-27 Urwerk S.A. Uhr mit Zeitperiodeanzeige
CH701653B1 (fr) * 2006-12-15 2011-02-28 Chronode Innovation & Dev J F Mojon Dispositif d'affichage pour pièce d'horlogerie.
CH700615A1 (fr) * 2009-03-26 2010-09-30 Louis Vuitton Malletier Sa Pièce d'horlogerie.
EP2595006A1 (de) 2011-11-17 2013-05-22 Blancpain S.A. Mechanische Anzeigevorrichtung für die Zustandsveränderung eines halbschnell oder schnell weiter springenden Anzeigemechanismus

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
IAN SKELLERN: "URWERK UR-202 The Film", 6 April 2008 (2008-04-06), pages 1, XP054981643, Retrieved from the Internet <URL:https://www.youtube.com/watch?v=V5MExuc0hxg> [retrieved on 20210401] *
URWERK: "Historical pieces : UR-202 | URWERK, Swiss watchmakers", 1 January 2007 (2007-01-01), XP055791982, Retrieved from the Internet <URL:https://www.urwerk.com/collections/historical-pieces/ur-202> [retrieved on 20210331] *

Also Published As

Publication number Publication date
EP4127837A1 (de) 2023-02-08
WO2021198434A1 (fr) 2021-10-07
CH717321A2 (fr) 2021-10-15
CN116047881A (zh) 2023-05-02
CN115362415A (zh) 2022-11-18
CH717320A2 (fr) 2021-10-15
WO2021198436A1 (fr) 2021-10-07
JP2023520382A (ja) 2023-05-17
US20230124960A1 (en) 2023-04-20
JP2023520381A (ja) 2023-05-17
CN115398350A (zh) 2022-11-25
US20230176524A1 (en) 2023-06-08
EP3889693A1 (de) 2021-10-06
JP7489484B2 (ja) 2024-05-23

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