EP3919988A1 - Gelenkmechanismus eines uhrwerks mit flexibler führung - Google Patents

Gelenkmechanismus eines uhrwerks mit flexibler führung Download PDF

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Publication number
EP3919988A1
EP3919988A1 EP20178321.4A EP20178321A EP3919988A1 EP 3919988 A1 EP3919988 A1 EP 3919988A1 EP 20178321 A EP20178321 A EP 20178321A EP 3919988 A1 EP3919988 A1 EP 3919988A1
Authority
EP
European Patent Office
Prior art keywords
articulated
arm
driver
articulated mechanism
flexible
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
EP20178321.4A
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English (en)
French (fr)
Inventor
M. Marc STRANCZL
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.)
Montres Breguet SA
Original Assignee
Montres Breguet 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 Montres Breguet SA filed Critical Montres Breguet SA
Priority to EP20178321.4A priority Critical patent/EP3919988A1/de
Priority to JP2022570137A priority patent/JP2023525385A/ja
Priority to EP21730895.6A priority patent/EP4162328A1/de
Priority to CN202180040175.3A priority patent/CN115698872A/zh
Priority to PCT/EP2021/064900 priority patent/WO2021245187A1/fr
Priority to US17/926,410 priority patent/US20230185246A1/en
Publication of EP3919988A1 publication Critical patent/EP3919988A1/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
    • G04B19/06—Dials
    • G04B19/08—Geometrical arrangement of the graduations
    • G04B19/082—Geometrical arrangement of the graduations varying from the normal closed scale
    • 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
    • G04B19/26—Clocks or watches with indicators for tides, for the phases of the moon, or the like
    • G04B19/268—Clocks or watches with indicators for tides, for the phases of the moon, or the like with indicators for the phases of the moon
    • 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
    • G04B19/2534—Driving or releasing mechanisms wherein the date indicators are driven or released mechanically by a clockwork movement driven or released continuously 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
    • G04B19/25353—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

Definitions

  • the invention relates to an articulated mechanism for a clockwork mechanism, arranged for a transmission of movement between an actuator and a receiver.
  • the invention also relates to a clockwork mechanism, comprising an actuator and a receiver, and at least one such articulated mechanism, arranged for transmission of movement between the actuator and the receiver.
  • the invention also relates to a clockwork movement, comprising at least one such clockwork mechanism, and / or at least one such articulated mechanism.
  • the invention also relates to a watch, comprising at least one such clockwork movement, and / or at least one such clockwork mechanism, and / or at least one such articulated mechanism.
  • the invention relates to the field of mechanisms for watchmaking, and in particular to display mechanisms and complications mechanisms.
  • the invention proposes to make the movement transformation mechanisms as flat as possible, even if they must have two or three parallel levels in certain cases, and to find a solution to reduce friction, by limiting the drive contacts. strictly necessary, with as few friction components as possible, which are always detrimental to the overall performance.
  • the invention adapts certain principles of articulated mechanisms well known in heavy mechanics or in general mechanics to watch mechanisms. It is however a question of not creating more friction than that which one removes, at the level of the pivots, articulations, guides and other slides.
  • the invention also introduces into control mechanisms, for example display or winding control mechanisms, flexible guides, whose horological applications have hitherto mainly concerned oscillators.
  • the invention therefore aims to use flexible guides which allow transformations of movements according to the principles of the articulated mechanisms of Hoeckens, Tchebytchev, Roberts, Klann, and the like, which will be illustrated below.
  • the invention relates to an articulated mechanism for a clockwork mechanism, arranged for a transmission of movement between an actuator and a receiver, according to claim 1.
  • the invention also relates to a clockwork mechanism, comprising an actuator and a receiver, and at least one such articulated mechanism, arranged for transmission of movement between the actuator and the receiver.
  • the invention also relates to a clockwork movement, comprising at least one such clockwork mechanism, and / or at least one such articulated mechanism.
  • the invention also relates to a watch, comprising at least one such clockwork movement, and / or at least one such clockwork mechanism, and / or at least one such articulated mechanism.
  • each of these main articulations carries a secondary bar at a first end, and each secondary bar is articulated at its second end, by a secondary articulation, to a tertiary bar.
  • each of these secondary articulations describes an imposed closed trajectory, equivalent to a single degree of freedom, even if this degree of freedom is neither linear nor circular.
  • the main bar will be called “fixed structure”hereinafter; it may in particular be a plate, or a bridge, or another structural element of a horological movement or of a watch case, and it will be called “arm. »
  • the secondary bars which are articulated to this fixed structure by main articulations we will then call the other bars according to their kinematic distance from the fixed structure, for example tertiary bar, quaternary bar, each articulated to the bar (or to the arm ) further upstream in this kinematic chain, through an articulation bearing the name of this bar (or this arm) further upstream: for example a tertiary bar is articulated by a secondary articulation to a bar secondary or arm; and a quaternary bar is hinged by a tertiary hinge to a tertiary bar.
  • N bars one of these N bars is constituted by the fixed structure.
  • a four-bar mechanism generally comprises a main bar or fixed structure, and comprises two main articulations; each of these main articulations carries a secondary bar at a first end, and each secondary bar is articulated at its second end, by a secondary articulation, to a tertiary bar, or else is articulated at the other.
  • each of these secondary articulations describes an imposed closed trajectory, equivalent to a single degree of freedom, even if this degree of freedom is neither linear nor circular.
  • Such a four-bar mechanism is used, for example, for driving the perforated film in a cinema projector.
  • the coach wipers are each mounted on the tertiary bar of a deformable parallelogram.
  • a four-bar mechanism comprises four rigid bodies, generally articulated to one another by rotating connections such as ball joints or pivots. These rotating links can be replaced, in monolithic structures such as those used in watchmaking, by collars which provide sufficient angular freedom from one bar relative to another, in the same plane, or even by flexible blades or bars. flexible blade assemblies.
  • the best known examples are the deformable parallelogram, used in particular for coach wipers, and the pantograph.
  • main bars of different lengths allows the execution of differentiated movements, as in passenger vehicles where the movement and stroke of the driver and passenger wipers are different.
  • planar quadrilateral mechanisms constitute deformable quadrilaterals, the bars of which forming the sides are linked to each other by real or virtual pivot connections such as flexible pivots with flexible blades crossed in projection, or the like.
  • a parallelogram deformable allows for a circular translational movement; this makes it possible to preserve the orientation in space, in particular with respect to the horizontal plane, of a manipulated object.
  • a crank-connecting rod-oscillator mechanism makes it possible to transform a reciprocating movement into a continuous rotational movement, or vice versa. It is well known for driving pedal sewing machines: the user's action on the pedal generates an oscillating movement of the pedal, which drives a rotating crank, for driving the sewing machine. to sew.
  • a pantograph mechanism makes it possible to make a homothety on a movement, and to amplify or reduce the amplitude of a movement.
  • a Watt's parallelogram is a crossed parallelogram, which makes it possible to obtain a particular guidance, along an imposed curve, and which is called pseudo-linear guidance.
  • the axle support is suspended from the wagon structure by two articulated bars, parallel to each other and of different distance from the rail, each connected by a primary articulation to the wagon. and by a secondary articulation to the axle box, and, thus, the trajectory of the center of the wheel with respect to the wagon follows an S-shaped curve which is almost linear in its central part.
  • Another mechanism whose purpose is to perform a pseudo-linear movement is a three-bar mechanism, called Chebyshev's horse, which constitutes a crank-rod-piston system.
  • One of the secondary articulations is replaced by a sliding mechanism: the end of a secondary bar slides on the other secondary bar which is load-bearing, for example in the form of a journal which circulates in an oblong slot, or of a pad in a slide, or the like, the tertiary bar is then no longer necessary.
  • a point on the secondary bearing bar describes a repeating closed curve. With a particular adjustment of the lengths, part of this closed curve can be a straight line.
  • Chebyshev's so-called lambda (due to its shape) mechanism is a four-bar mechanism that converts rotational motion into approximate rectilinear motion, with approximately constant speed over part of the path of the exit point.
  • the tertiary bar is extended outside the two secondary articulations, and a point distant from these two secondary articulations follows, over part of its course, a rectilinear path, and returns by a curved path to its starting point. It is therefore advantageous for everything retrograde type watch display.
  • This mechanism requires the possibility of continuous rotation on one of the primary joints, of the crank type, which limits its use to special cases because it is not entirely flat.
  • the Hoeckens mechanism with three bars, is similar to Chebyshev's horse, and also allows the conversion of a rotational movement into a substantially rectilinear movement over a large part of its stroke.
  • a first articulation to the fixed structure carries a connecting rod, driven in a circular movement, and which is articulated with a long bar which slides in a slide which is itself articulated at a second point of the fixed structure.
  • the Roberts mechanism also converts rotational motion into rough linear motion.
  • the tertiary bar is the base of an isosceles triangle, whose two sides of the same length have the same length as the secondary bars, and the vertex of this isosceles triangle opposite the base follows a rectilinear motion on the line of the main joints, or parallel to this line, when one of the secondary bars, or the base, is animated by an alternating rotational movement.
  • the Klann mechanism is a planar mechanism designed to avoid an obstacle in a path, for example to simulate the gait of a legged animal and replace the wheel.
  • the mechanism consists of a leg that comes into contact with the ground, a crank, two rocker arms, and two rods, all connected by pivot links.
  • the proportions of each of the links in the mechanism are defined to optimize the linear movement of the foot during half of the rotation of the crank.
  • the remainder of the crank rotation allows the foot to be raised to a predetermined height before returning to the starting position and repeating the cycle.
  • Two mechanisms coupled together to the crank and out of phase by half a cycle allow the chassis of a vehicle to move parallel to the ground.
  • the kinematics of the Klann mechanism is based on mechanical links which give the relative movement to each of the bars. It converts rotational motion into linear motion.
  • the document US6260862 describes such a mechanism. Although of a more complex kinematics than the mechanisms with three or four bars, and although requiring three levels, the Klann mechanism has the advantage of being able to generate a complex trajectory guaranteeing the absence of collision with an obstacle, and this , in a perfectly repetitive fashion.
  • the invention proposes to use the properties of some of these mechanisms for controlling certain horological functions, in particular display functions.
  • modern micromachining techniques and the implementation of “LIGA”, “MEMS” or similar type processes make it possible to obtain monolithic components grouping together complex functions, and in particular within oscillators.
  • the rotating connections, such as ball joints or pivots, of traditional mechanics can be replaced, in these monolithic structures such as used in watchmaking, by collars which provide sufficient angular freedom of one bar with respect to another, in a same plan.
  • the invention relates to an articulated mechanism 100 for a clockwork mechanism, arranged for a transmission of movement between an actuator and a receiver.
  • this articulated mechanism 100 comprises a fixed structure 10, relative to which a driver 9 is movable according to a single degree of freedom under the action of such an actuator, this driver 9 being connected to the fixed structure 10. by at least one flexible guide 50, said driver 9 and said fixed structure 10 each being more rigid than each flexible guide 50.
  • this driver 9 is mobile according to a single degree of freedom, other than in pivoting, and so that each point of this driver 9 follows a path other than circular.
  • the driver 9 is connected to the fixed structure 10 by a plurality of flexible guides 50.
  • the only connections between the driver 9 and the fixed structure 10 are of the flexible guide type: the driver 9 is connected to the fixed structure 10 only by a flexible guide 50 or more flexible guides 50.
  • At least one flexible guide 50 is flat, and comprises flexible necks 51, of lower section than the elements which are adjacent to them, and constituting articulations, and / or comprises flexible blades 5, 6, 52, of lower section. to the elements which are adjacent to them, and constituting articulations.
  • the figures non-limitatively illustrate straight flexible blades, it is clear that these flexible blades can be curved, bent, or even adopt complex shapes, for example zig-zag or the like.
  • each flexible guide 50 is plane, and comprises flexible necks 51, of section smaller than the elements which are adjacent to them, and constituting articulations, and / or comprises flexible blades 5, 6, 52, of section smaller than elements which are adjacent to them, and constituting articulations.
  • this articulated mechanism 100 comprises at least two arms 1 and 2, which are articulated to the structure 10 at two distinct points, these arms 1 and 2 being arranged to cooperate kinematically with one another, or with a tertiary bar. 12 or a tertiary structure 120, such as a non-deformable triangle 121, or a deformable quadrilateral 122, or the like.
  • This tertiary bar 12 or this tertiary structure 120 advantageously constitutes this driver 9.
  • the figure 6 illustrates the first case, with a slide between two arms, where the first arm 1 comprises, at a distance from the first main articulation 11, a sliding element 18 arranged to cooperate in sliding and in an articulated manner with a complementary sliding element 28 that comprises, at a distance from the second main articulation 21, the second arm 2 constituting the driver 9.
  • the figure 8 illustrates the second case, where the articulated mechanism 100 comprises, at a distance from the first main articulation 11, a first secondary articulation 110 between the first arm 1 and the driver 9, and, at a distance from the second main articulation 21 and the first secondary articulation 110, a second secondary articulation 210 between the second arm 2 and the trainer 9, or between the second arm 2 and a maneuvering bar 4 articulated with the trainer 9.
  • At least one of the articulations like the first main articulation 11 and the second main articulation 21, in the case of this figure, can be a pivot connection which allows a rotation of 360 °, and which then requires a realization by a traditional guide, not being possible by flexible guide .
  • the figure 43 thus illustrates an articulated mechanism 100, which comprises two flexible guides 50 arranged in series between the driver 9 and the structure 10, and which are separated by an intermediate inertial mass 51 to which they are both attached or with which they form a monolithic whole.
  • Each flexible guide 50 comprises two flexible blades 5 and 6, arranged in two parallel planes, and which intersect in projection on one of these planes; in planar projection, a first direction D1 is defined by the alignment of these crossing points, and a second direction D2 is defined by the alignment between, on the one hand, the pivot of axis D9 at the end of a crank not shown which forms the second arm 2 of the figure 8 , and on the other hand a distal end 90 of the driver 9: the crossing of the flexible blades 5 and 6 furthest from the structure 10, and the closest to the driver 9, is equivalent to the first secondary articulation 110 between the first arm 1 and the trainer 9; it corresponds to the intersection of the directions D1 and D2.
  • the articulated mechanism 100 constitutes a Peaucelier-Lipkin mechanism, and the same articulation carries several arms, here the first articulation 11 carries two first arms 1 and 118.
  • the articulated mechanism 100 forms a Chebyshev horse
  • the first arm 1 comprises a sliding element 18, which is arranged to cooperate in sliding with a complementary sliding element 28 carried by the second arm 2.
  • the articulated mechanism 100 comprises, at a distance from the first main articulation 11, a first secondary articulation 110 between the first arm 1 and the driver 9, and, at a distance from the second main articulation 21 and from the first secondary articulation 110, a second secondary articulation 210.
  • This second secondary articulation 210 is arranged between the second arm 2 and the trainer 9, or between the second arm 2 and a maneuvering bar 4 articulated directly or indirectly with the trainer 9 as on the variant of the figure 16 constituting a Klann mechanism.
  • the maneuvering bar 4 is articulated respectively at a first maneuvering joint 24 with the second arm 2, and at the level of a second maneuvering joint 49 with the driver 9.
  • the structure 10 comprises a pivot 30 arranged to guide in rotation a third bar 3, which is articulated at a third secondary articulation 31 remote from the pivot 30, with the operating bar 4.
  • At least one flexible guide 50 comprises at least two parallel plane levels, and comprises in each level flexible blades 5, 6, 52, of section smaller than the elements which are adjacent to them, and whose directions are crossed and whose the projection, on a plane parallel to the levels, of the intersection of these directions defines a virtual pivot axis and an articulation, as visible on the figures 43 to 54 .
  • the driver 9, the structure 10, and at least one flexible guide 50 are coplanar. More particularly still, the driver 9, the structure 10, and each flexible guide 50 are coplanar.
  • the trainer 9 is a third bar.
  • the trainer 9 is a rigid polygonal structure, as in the production of figures 11 and 12 where the articulated mechanism 100 forms a Roberts mechanism, with a non-deformable structure 120 which is formed of an isosceles triangle 121.
  • the driver 9 comprises, at a distal end 90, a hook or a finger or a tooth for driving a receiver.
  • the first arm 1 or the second arm 2 is designed to be driven by an actuator. But the drive by the actuator can also take place at an intermediate bar of the articulated mechanism 100.
  • the third bar 3 is designed to be driven by an actuator.
  • the articulated mechanism 100 comprises at least a plurality of flexible guides 50 arranged in series between the driver 9 and the structure 10, and of which at least two successive flexible guides 50 are separated by an intermediate inertial mass 51 to which they are both fixed or with which they form a monolithic whole.
  • At least one flexible guide 50 comprises a pivot with two separate crossed blades, or a pivot with two integral crossed blades, or an RCC pivot with two orthogonal blades, or an RCC pivot with 4 necks, or at least two blades at least. less locally parallel, or translational guidance with flexible neck connections.
  • a flexible linear guide of the type of figure 19 allows a slide without friction.
  • the articulated mechanism 100 is a composite mechanism comprising at least one flexible guide 50 in silicon and / or silicon oxide, or in micromachinable material shaped by a “LIGA” or “MEMS” or similar process, this flexible guide being mechanically fixed to the driver 9 and to the structure 10 by pinned and / or screwed and / or glued and / or pinched connection, or other mechanical connection known to the watchmaker.
  • this flexible guide being mechanically fixed to the driver 9 and to the structure 10 by pinned and / or screwed and / or glued and / or pinched connection, or other mechanical connection known to the watchmaker.
  • the articulated mechanism 100 is a monolithic mechanism.
  • the trajectory T of the distal end 90 comprises at least one linear or substantially linear segment T1. More particularly, the entire path T of the distal end 90 is linear or substantially linear. More particularly, the trajectory T of the distal end 90 forms an eight, which can be very flattened, depending on the lever arms imposed on the articulated mechanism, and the crossing part of the loops of the eight is very close to a linear stroke.
  • the trajectory T of the distal end 90 comprises a linear or substantially linear segment corresponding to a first travel T1 of the distal end 90 in a first direction, and a concave curve joining the ends of the segment and corresponding to a second T2 stroke of the distal end 90 in the second direction opposite to the first direction.
  • the invention also relates to a clockwork mechanism 500, comprising an actuator and a receiver, and at least one such articulated mechanism 100, arranged for transmission of movement between the actuator and the receiver.
  • the driver 9 is designed to drive a receiver by direct contact, or through a pusher or a latch, in particular through its distal end 90.
  • the actuator is arranged to exert a continuous force on the articulated mechanism 100, over the whole of a control stroke, for an adequate stroke of the receiver.
  • the actuator is arranged to exert an impulse on the articulated mechanism 100, to transmit an adequate impulse to the receiver.
  • the actuator is integral with one of the elements of a flexible guide 50 or articulated with one of the elements of a flexible guide 50.
  • the articulated mechanism 100 is a Hoeckens mechanism designed to transform a rotation imparted by the actuator into a retrograde linear displacement of the receiver.
  • the articulated mechanism 100 is a Roberts mechanism arranged to transform a rotation imparted by the actuator into a retrograde linear displacement of the receiver, the distal end 90 of the driver 9 being a vertex of a triangle 121 the other tops of which are articulated to articulated arms 1, 2, which the articulated mechanism 100 comprises.
  • the articulated mechanism 100 is a Klann mechanism designed to transform a continuous rotation imparted by the actuator into a periodic driving thrust on a toothing or a bearing surface that the receiver comprises.
  • the figure 55 illustrates such an example, a triangular fixed structure 10 comprises three articulations 101, 102, 103; a third bar 3 is articulated at a first end 31 to the articulation 103, and its second end 32 is driven in a circular movement.
  • the particular kinematics impose a trajectory T substantially at a right angle which allows the distal end 90 to bypass, without touching it, a tooth of a wheel, in order to push it at the end of the cycle.
  • the articulated mechanism 100 is a Lambda Chebyshev mechanism designed to transform a continuous rotation imparted by the actuator into a periodic driving thrust on a toothing or a bearing surface that the receiver comprises.
  • the articulated mechanism 100 is a Chebyshev horse mechanism designed to transform a rotation imparted by the actuator into a retrograde linear displacement of the receiver.
  • the invention also relates to a timepiece movement 1000, comprising at least one such timepiece mechanism 500, and / or at least one such articulated mechanism 100.
  • the preferred embodiment of these mechanisms comprises flexible guides 50, the clockwork mechanism 500 or the articulated mechanism 100 may naturally also include at least one conventional guide in rotation or in translation.
  • the invention also relates to a watch 2000, comprising at least one such clockwork movement 1000, and / or at least one such clockwork mechanism 500, and / or at least one such articulated mechanism 100.
  • the figures 23 to 28 illustrate a first application of the invention, using an articulated mechanism comprising flexible guides, for a retrograde display, in which a rotation is transformed into a linear displacement of a moon phase shutter 79, gradually covering or uncovering a representation clear 78 of the moon.
  • the figures 42 to 54 illustrate the application of a crank mechanism, of the Lambda mechanism type of Chebytechv or similar, to ensure the course of a straight trajectory in a first direction, and curved in a second direction, to actuate a date disc.
  • the figure 55 uses a Klann actuation mechanism, which actuates a toothing, for example to drive a display or an automatic winding wheel.
  • the trajectory of the driver is more complex, it allows a large clearance, and a substantially radial retraction between two teeth of the wheel.
  • the mechanisms according to the invention make the most of the space available in a watch, and improve the overall efficiency by minimizing friction.
  • the advantage of applying the invention to display mechanisms is the transformation of a rotational movement into a translational movement for a linear display with a single degree of freedom.
  • the advantage of applying the invention to actuation mechanisms is the possibility of actuating toothing with kinematics allowing a minimum of friction. Indeed, in the case of the prior art, the actuator comes into contact with a tooth and bypasses it. Contact is necessary to bypass the tooth. Generally, when the driver is a hook or the like, the back of this hook, that is to say the part opposite to that which has a bearing surface provided to modify the position of the teeth, rubs against the tooth , before the bearing surface drives the tooth, there are then large areas of friction and wear, which are detrimental to the efficiency of the mechanism, and to its resistance over time.
  • the flexible guide guides the actuator to bypass the tooth without contact, the kinematics of the articulated mechanism in fact allowing a substantially radial approach, then the actuator comes into contact with the tooth only for activate it.
  • the friction zones are thereby reduced, as is the energy lost by friction.
  • figures 49 and 50 show the use of the area with a small radius of curvature between the rectilinear trajectory T1 and the curved trajectory T2, to ensure this optimal kinematics.
EP20178321.4A 2020-06-04 2020-06-04 Gelenkmechanismus eines uhrwerks mit flexibler führung Pending EP3919988A1 (de)

Priority Applications (6)

Application Number Priority Date Filing Date Title
EP20178321.4A EP3919988A1 (de) 2020-06-04 2020-06-04 Gelenkmechanismus eines uhrwerks mit flexibler führung
JP2022570137A JP2023525385A (ja) 2020-06-04 2021-06-03 可撓性ガイドを備えた時計用リンク機構
EP21730895.6A EP4162328A1 (de) 2020-06-04 2021-06-03 Gelenkiger uhrmechanismus mit flexibler führung
CN202180040175.3A CN115698872A (zh) 2020-06-04 2021-06-03 具有柔性导向件的钟表铰接机构
PCT/EP2021/064900 WO2021245187A1 (fr) 2020-06-04 2021-06-03 Mecanisme articule d'horlogerie a guidage flexible
US17/926,410 US20230185246A1 (en) 2020-06-04 2021-06-03 Horological linkage mechanism with flexible guidance

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP20178321.4A EP3919988A1 (de) 2020-06-04 2020-06-04 Gelenkmechanismus eines uhrwerks mit flexibler führung

Publications (1)

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EP3919988A1 true EP3919988A1 (de) 2021-12-08

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EP20178321.4A Pending EP3919988A1 (de) 2020-06-04 2020-06-04 Gelenkmechanismus eines uhrwerks mit flexibler führung
EP21730895.6A Pending EP4162328A1 (de) 2020-06-04 2021-06-03 Gelenkiger uhrmechanismus mit flexibler führung

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EP21730895.6A Pending EP4162328A1 (de) 2020-06-04 2021-06-03 Gelenkiger uhrmechanismus mit flexibler führung

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US (1) US20230185246A1 (de)
EP (2) EP3919988A1 (de)
JP (1) JP2023525385A (de)
CN (1) CN115698872A (de)
WO (1) WO2021245187A1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4202567A1 (de) 2021-12-22 2023-06-28 Montres Breguet S.A. Anordnung von entgegengesetzten flexiblen führungen für ein uhrwerk, insbesondere für eine anzeigevorrichtung

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6260862B1 (en) 1998-02-11 2001-07-17 Joseph C. Klann Walking device
WO2012010408A1 (fr) * 2010-07-19 2012-01-26 Nivarox-Far S.A. Mecanisme oscillant a pivot elastique et mobile de transmission d'energie
WO2018115014A2 (fr) * 2016-12-23 2018-06-28 Sa De La Manufacture D'horlogerie Audemars Piguet & Cie Composant monolithique flexible pour pièce d'horlogerie

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6260862B1 (en) 1998-02-11 2001-07-17 Joseph C. Klann Walking device
WO2012010408A1 (fr) * 2010-07-19 2012-01-26 Nivarox-Far S.A. Mecanisme oscillant a pivot elastique et mobile de transmission d'energie
WO2018115014A2 (fr) * 2016-12-23 2018-06-28 Sa De La Manufacture D'horlogerie Audemars Piguet & Cie Composant monolithique flexible pour pièce d'horlogerie

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4202567A1 (de) 2021-12-22 2023-06-28 Montres Breguet S.A. Anordnung von entgegengesetzten flexiblen führungen für ein uhrwerk, insbesondere für eine anzeigevorrichtung
JP7474831B2 (ja) 2021-12-22 2024-04-25 モントレー ブレゲ・エス アー 特に表示デバイスのための、計時器用ムーブメントのための反対方向を向くタイプのフレキシブルガイドアセンブリー

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CN115698872A (zh) 2023-02-03
JP2023525385A (ja) 2023-06-15
EP4162328A1 (de) 2023-04-12
WO2021245187A1 (fr) 2021-12-09

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