• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    The invention relates to a blade resonator for mechanical watch movement, comprising a structure (110), an oscillating inertial element (120), and elastic blades (10) constituting a plane guide of the inertial element, and an anti-shock device. plane arranged to protect each blade (10) from breakage in the event of an impact, and comprising a first prestressed flexible element (30) arranged to allow a variation of length during a blade extension or contraction in a range of lengths corresponding to the normal operation of this blade under the action of a force of intensity less than a first threshold, and to prohibit an extension or contraction of this blade when it is subjected to a tensile force or respectively compression of intensity greater than the first threshold, and this resonator comprises a plurality of blades (10) forming with each other a cross-blade pivot which comprises at least two nails. aux, each comprising, in one piece, a said blade (10), a first prestressed flexible element, and positioning supports of the blades.
    公开号:CH713167A2
    申请号:CH01249/17
    申请日:2017-10-13
    公开日:2018-05-31
    发明作者:Winkler Pascal；Helfer Jean-Luc；Léchot Dominique；Born Jean-Jaques
    申请人:Swatch Group Res & Dev Ltd；
    IPC主号:
    专利说明:

    Description
    FIELD OF THE INVENTION The invention relates to a blade resonator for mechanical watch movement, arranged to be fixed on a plate of a movement or to constitute a plate, the resonator comprising a fixed structure, arranged to be fixed. on the plate or to constitute the plate, and with respect to which fixed structure at least one inertial element is arranged to vibrate or / and oscillate, and the resonator comprising at least one elastic blade extending between, at a first end a first anchor arranged at the fixed structure and at a second end a second anchor arranged at one at least one inertial element, and the blade being arranged to vibrate essentially in a main plane.
    The invention relates to the field of mechanical watchmaking resonators.
    BACKGROUND OF THE INVENTION Most current mechanical watches use a balance-spring resonator as a time base. This device proven for centuries, however, has pivots that rub in their bearing. Nowadays, micro-manufacturing techniques allow to consider replacing the balance-spring with a reed resonator. This eliminates friction from the pivots. Such a resonator with blades is characterized in that the blades fulfill both the guiding function and the function of elastic restoring force. US Pat. No. 9,207,641 of the CSEM presents such a resonator.
    Unfortunately, in the event of an impact on the watch, the blades of the blade resonator, which are thin and slender, are liable to break.
    Application EP 3 035 127 A1 from the same applicant describes a timepiece oscillator comprising a resonator constituted by a tuning fork which comprises at least two oscillating moving parts, fixed to a connecting element by flexible elements whose geometry determines a virtual pivot axis of determined position relative to a plate, and around which the respective movable part oscillates, the center of mass of which coincides in the rest position with the respective virtual pivot axis. For at least one mobile part, these flexible elements consist of elastic blades crossed at a distance from each other in two parallel planes, the projections of the directions of which on one of said parallel planes intersect at the level of the pivot axis. virtual part of the mobile part.
    Application EP 3 054 356 A1 from the same applicant describes a timepiece resonator comprising at least one mass oscillating with respect to a connecting element fixed to a structure of a movement. This mass is suspended from the connecting element by elastic crossed blades which extend at a distance from each other in two parallel planes, and whose projections on one of the planes intersect at an axis of virtual pivoting of the mass, and define a first angle which is the angle at the apex facing which extends the part of the connecting element located between the fasteners of the crossed blades on the connecting element. This apex angle is between 68 ° and 76 ° for optimal isochronism.
    SUMMARY OF THE INVENTION The aim of the present invention is to propose a device for protecting the blades in the event of an impact. Hereinafter, such a device will be called “shockproof”.
    To this end, the invention relates to a resonator according to claim 1.
    The invention also relates to a timepiece movement comprising at least one such resonator.
    The invention also relates to a watch comprising at least one such movement.
    Brief description of the drawings [0011] Other characteristics and advantages of the invention will appear on reading the detailed description which follows, with reference to the accompanying drawings, where:
    fig. 1 is a block diagram representing a watch which comprises a clockwork movement, which comprises a plate with a resonator, which itself comprises a structure and an inertial element fixed to this structure by at least one flexible elastic blade protected by a shockproof device according to the invention;
    fig. 2 is a block diagram representing this shockproof device, which comprises a base for fixing it to the structure or to the inertial element or to the plate, which base carries, through an elastic suspension element, a shuttle to which is fixed a first end of a blade, and a flexible prestressed element constituted by a prestressed spring in the shape of a staple comprising two staple heads cooperating in a complementary manner, one with a shuttle housing, the other with a housing structure, and stop means and stop means,
    fig. 3 represents, schematically, a symbol created for the invention and used in the other figures for their simplification, representing this shockproof device with its pre-stressed flexible element, and the blade which it carries; fig. 4 shows, diagrammatically and in plan, a mechanical resonator with two crossed blades arranged in parallel and distant planes, each blade being connected to the structure by an anti-shock device according to the invention; fig. 5 represents, analogously to FIG. 4, a variant of this mechanical resonator, where each blade is connected, at one of its ends to the structure by an anti-shock device according to the invention, and at the other end to the inertial element by an anti-shock device according to the invention; fig. 6 represents, analogously to FIG. 5, another variant of this mechanical resonator, where each blade is connected, at one end to the inertial element by an anti-shock device according to the invention, and where the structure of the resonator is fixed to the plate by two anti-shock devices according to the invention, in two perpendicular directions; fig. 7 is a force diagram as a function of the stroke, showing the protection of a blade against rupture in compression thanks to an elastic prestressed part of the shockproof; fig. 8 is a force diagram as a function of the stroke, showing the protection of a blade against breakage in traction thanks to an elastic prestressed part of the shockproof; fig. 9 is a block diagram showing a blade-carrying shuttle, movable relative to the plate and subjected to the action, an elastic prestressed part of the shockproof; fig. 10 shows schematically and in plan, the detail of a shock absorber according to the invention, in the operating position, with a blade-carrying shuttle suspended by elastic elements parallel to a base, the shuttle being pressed against the base by a elastic pre-stressed part, for the protection of the blade in compression, constituted by a U-shaped clip with two heads, one housed bearing on the base, the other on the shuttle; fig. 11 represents the same device before assembly, with the shuttle suspended in the free state, and the clip in its deployed free position; fig. 12 represents, analogously to FIG. 11, the detail of a shock absorber according to the invention, before assembly, the prestressed elastic part being this time designed for the protection of the blade in traction; fig. 13 shows this shock absorber in the operating position, with the clip enclosing both the base and the shuttle; fig. 14 shows schematically and in side view, a detail of a shock absorber comprising a cage of which an inner wall forms a stop for a shell enclosing the end of a blade, this shell, pulled by a spring, being itself arranged to constitute a stop for a conical end or with oblique faces of the blade; fig. 15 is a similar view, where a spring contained in the cage pushes back the end of a blade, which is stopped by an interior wall of the cage; fig. 16 is a view similar to FIG. 4, where the flexible flexible blades of the resonator each carry an anti-shock device at their end of junction with the inertial element, which is framed externally by additional stops; fig. 17 shows, schematically and in plan, in the free state before arming, a detail of a resonator according to the invention, with a blade shown obliquely and protected by two shock absorbers, one comprising a pre-stressed elastic part for the protection of the blade in compression, and the other comprising an elastic part preloaded for the protection of the blade in traction, each of these elastic parts being in two parts and comprising hooks provided for securing these two parts and for arming its prestress; fig. 18 shows a device similar to that of FIG. 17, and whose shock absorbers are similar to those of FIGS. 10-11 and 12-13;
    fig. 19 is a diagram of force as a function of the stroke, showing the protection of a blade against breakage both in compression and in traction, each time thanks to an elastic prestressed part of an ad hoc shock absorber, such as shown in fig. 17 or 18;
    fig. 20 shows, schematically and in plan, in the free state before arming, a detail of a resonator according to the invention, of circular type, with a blade in the middle part, and, attached to the ends of this blade, two elastic prestressed parts in the form of a clip, similar to those of FIGS. 10 to 13, shown superimposed in the free state before being prestressed in their respective housings;
    fig. 21 shows, schematically and in plan, a detail of a resonator according to the invention, where the shockproof device and the guide blades are produced by the combination of two vee pivots mounted head to tail and a stop;
    fig. 22 and 23 show, schematically, respectively in plan and side view, a detail of another resonator according to the invention, which comprises two blades crossed in parallel and distant planes, each protected by an anti-shock device according to the invention, and where each level comprises, in one piece, a blade, an elastic prestressing element, positioning supports for the blades;
    fig. 24 to 26 show, schematically and in section along a plane passing through the pivot axis of the inertia element), shock protection means according to the axial component parallel to this pivot axis;
    fig. 24 illustrates a variant in which the axial travel of the inertia element is limited by limiting discs forming axial stops above and below the resonator, and a theoretical arrangement suitable only for certain types of blades, with stops mechanical in the vicinity of the blades, above and below the resonator, forming means of axial protection of the blades;
    fig. 25 illustrates the case where each blade has an eye or a clearance at the pivot axis, allowing the passage of a shaft, fixed to the plate, and comprising limitation discs similar to the mechanical stops of FIG. 24; the shaft then also participates in the stroke limitation function in the main plane;
    fig. 26 is a partial view of a variant of FIG. 25, where the shaft is not rigidly fixed to the plate, but is suspended from an axial prestressed shock absorber comprising compression resistance couples, and staples, similar to those of FIGS. 10 to 13, of tensile strength.
    Detailed description of the preferred embodiments The invention proposes to develop a timepiece, in particular a mechanical watch 300, comprising at least one resonator 100 with blades, comprising elastic flexible blades 10 effectively protected against the shocks.
    More particularly and as illustrated by the figures, but not limited to, this resonator 100 with blades is a rotary resonator.
    The blades 10 fulfill the guiding function for the inertial element of the resonator, and, according to the invention, they are protected from rupture in the event of impact by at least one plan shockproof device 20.
    Shocks can exert forces in any direction of space, and the blade resonator according to the invention comprises means protecting the blades from the forces which are printed on them in the plane in which they deform in normal operation , hereinafter called the main plane PP. In an advantageous variant of the invention, the resonator 100 with blades further comprises means protecting the blades from the forces which are imparted to them in a direction called axial Z, perpendicular to this main plane PP. Advantageously, the resonator 100 includes both protection means in this plane PP, and in the axial direction. Thus the blades can be protected in tension, compression, and shear.
    Particularly and advantageously, the blades 10 fulfill both the guiding function and the restoring force function, that is to say restoring force or / and restoring torque, depending on the configuration of the resonator 100, for the inertial element 120 of the resonator, or the inertial elements when the resonator has more than one.
    More particularly, the invention relates to a resonator 100 with a blade for mechanical movement 200 of a watch 300.
    This resonator 100 is designed to be fixed on a plate 210 of such a movement 200, or to constitute such a plate 210.
    This resonator 100 has a structure 110, in particular but not limited to a fixed structure, which is arranged to be fixed on the plate 210, or to constitute the plate 210.
    At least one inertial element 120 is arranged to vibrate or / and oscillate relative to this structure 110.
    The resonator 100 comprises at least one elastic blade 10, which extends between, at a first end 11 a first anchor 1 arranged at the structure 110, and at a second end 12 a second anchor 2 arranged at the level of at least one inertial element 120. Naturally, the connection between the structure 110 and an inertial element 120 can also be ensured by a plurality of blades, or also by a plurality of blades between which intermediate masses are arranged, such as by example in flexible pivots with four blades in vee head to tail, or others. In such a case, the notion of "blade" then covers the crew interposed between the structure 110 and the inertial element 120 concerned, and of which at least one element is such a flexible blade.
    Such an elastic blade 10 is arranged to vibrate essentially in a main plane PP.
    This at least one blade 10 constitutes a guide for the inertial element 120, with which it cooperates, in the main plane PP.
    More particularly, the resonator 1000 comprises a plurality of such blades 10.
    According to the invention, for the shock protection of the blades 10 which it comprises, the resonator 100 comprises at least, at the first anchor 1 or / and at the second anchor 2, at least one plan shockproof device 20 , which is arranged to protect each at least one blade 10 from breaking in the event of an impact. To this end, this plan shockproof device 20 comprises at least a first flexible prestressed element 30, with a prestressing force in the main plane PP which is adjusted to a predetermined safety force value. More particularly, the planar anti-shock device 20 comprises at least one elastic prestressed part. Advantageously, it is supplemented by at least one stop, capable of limiting the travel of the blade or of the inertial element.
    The planar shockproof device 20 advantageously comprises at least one first pre-stressed flexible element 30, which is arranged to allow a variation in length during expansion or contraction of at least one blade 10 in a range of lengths Lmin-Lmax corresponding to the normal operation of this blade 10 under the action of a force of intensity less than a threshold S, and to prevent expansion or contraction of the at least one blade 10 outside the first range of lengths Lmin-Lmax when the blade 10 is subjected to a tensile or compression force respectively of intensity greater than the threshold S.
    In a particular embodiment, as visible in FIG. 4 or 5, the prestressed elastic part is placed between the support of the resonator and the inertial element of the resonator, and stops are integral with the support and act on the inertial element of the resonator.
    In another particular embodiment, as visible in FIG. 6, the prestressed elastic part is placed between the support of the resonator and the plate, and stops are integral with the plate and act on the inertial element of the resonator.
    Advantageously, at least one of the prestressed elastic parts is arranged to protect at least one of the blades from rupture in compression.
    Advantageously, at least one of the prestressed elastic parts is arranged to protect at least one of the blades from breaking in traction.
    More particularly, and as visible in FIGS. 17, 18, and 20, at least one blade 10, and more particularly still each blade 10, is protected both by a first plan shockproof device 20T arranged to protect it in traction, and by a second plan shockproof device 20C arranged to protect it in compression.
    In a particular embodiment, in addition to its guiding function, at least one blade 10, and more particularly each blade 10, is arranged to exert a force to return an inertial element 120 to a neutral position thereof.
    In a particular embodiment, as visible in FIG. 5, the planar shock-absorbing device 20 comprises at least one first prestressed flexible element 30 at the first anchor 1 and at least one first prestressed flexible element 30 at the second anchor 2.
    In a particular embodiment, the plan shockproof device 20 comprises at least one stop 50, which is arranged to limit the travel of the first end 11 or the second end 12 of the blade 10 concerned, and / or comprises at least a stop 60 arranged to limit the travel of the at least one inertial element 120.
    In a particular embodiment, as visible in FIG. 14 or 15, at least one first prestressed flexible element 30 is enclosed in a cage 40 comprising or constituting a stop 50.
    In a particular embodiment, as visible in FIG. 4, 5, or 16, the at least one first pre-stressed flexible element 30 is placed between the structure 110 and an inertial element 120, and the plan shockproof device 20 comprises at least one stop 60 integral with the structure 110 and arranged to limit the travel of at least one inertial element 120.
    In another particular embodiment, as visible in FIG. 6, the structure 110 is distinct from the plate 210, and the first pre-stressed flexible element 30 is placed between the structure 110 and the plate 210, and the plan shockproof device 20 comprises at least one stop 60 integral with the plate 210 and arranged for limit the travel of the at least one inertial element 120.
    Particular embodiments of first prestressed flexible elements 30 are visible in FIGS. 10 to 13: the pre-stressed elastic part comprises a base, a blade attachment shuttle and a pre-stressed spring. This particular planar shockproof device 20 comprises a base 70, which is designed to be fixed on the structure 110, or on an inertial element 120, or on the plate 210. This base 70 carries, through at least one elastic element of suspension 80, a shuttle 90 to which is fixed the first end 11 or the second end 12 of a blade 10, and comprises at least one first prestressed flexible element 30 constituted by a prestressed spring in the form of a clip 31 comprising two heads d clip 32. These are arranged to cooperate in a complementary manner, one with a shuttle housing 92, and the other with a structure housing 112 which comprises the structure 110 or an inertial element 120 or the plate 210, in a constrained state, in tension or in compression, of the clip 31.
    In a first variant, at least one of the prestressed elastic parts is arranged to protect at least one of the blades from rupture in compression.
    In a second variant, at least one of the prestressed elastic parts is arranged to protect at least one of the blades from breaking in traction.
    Advantageously, the resonator comprises means for protecting its blades both in compression and in traction, and at least one of the blades is protected from breaking in traction and in compression by one of the prestressed elastic parts d an anti-shock device, respectively, another of the prestressed elastic parts of an anti-shock device, in particular but not necessarily of another anti-shock device. In particular, the bases, prestressed springs, attachment shuttles and blades are in one piece.
    In a particular embodiment, as visible in FIG. 18, the base 70 and the shuttle 90 for attaching the blade 10 are in one piece.
    In a particular embodiment, as visible in FIG. 17, the base 70, the shuttle 90 for attaching the blade 10, and the clip 31 are in one piece.
    More particularly, this single part is made of silicon, or of silicon and silicon dioxide.
    More particularly, at least some blades 10, or more particularly all the blades, are made of silicon thermally compensated by a surface layer of silicon dioxide. More particularly, this surface layer has a thickness of between 2.5 and 3.0 micrometers.
    In another variant, the blades are made of amorphous metal or metallic glass.
    In a particular embodiment, the resonator 100 comprises a one-piece component 25 which includes all the bases 70, all the shuttles 90, and all the staples 31 that comprise the plan shockproof devices 20 that this resonator 100 includes.
    In a particular embodiment, this one-piece component 25 is made of silicon.
    Advantageously, when the resonator 100 includes stops 60, at least one of these is placed at the center of rotation of the inertial element 120 so that, in the event of an impact, the disturbing torque is minimal.
    In a particular variant of a resonator, as visible in FIG. 21, the resonator 100 comprises a plan shockproof device 20 and blades 10, which are arranged so as to constitute two pivots in vee head to tail, and in combination with a fixed stop 60 which comprises the structure 110 or an inertial element 120 or the plate 210, placed at the center of rotation of the inertial element 120. In this case, there is no need for prestressing to create a threshold effect. The threshold effect is created by the fact that, regardless of the direction of the impact, one of the blades of the pivot can buckle to limit the traction in the blade located opposite.
    In a particular variant of said resonator with crossed blades, and as visible in FIGS. 4, 5, 6, 16, 22, 23, the resonator comprises a plurality of blades 10, which form with each other a pivot with crossed blades.
    According to the invention, in the particular variant of FIGS. 22 and 23, this pivot with crossed blades consists of two levels 150, corresponding to cut plates, and each level 150 comprises, in one piece, a blade 10, an elastic prestressing element with a first flexible prestressed element 30 , and supports 160 for positioning the blades.
    More particularly and as a complement to this planar protection, the resonator 100 also advantageously comprises, for the three-dimensional shock protection of the blades 10 which it comprises, in an axial direction Z perpendicular to the main plane PR of the axial protection means 400.
    These axial protection means 400 comprise, or alternatively axial stops 401.401 A, 401 B, or at least one axial shockproof device 402.
    More particularly, the axial stops 401, 401 A, 401 B, are stops for limiting the axial travel of at least one inertial element 120, or / and at least one blade 10.
    Preferably, these axial stops 401, 401 A, 401 B, are axial stroke limitation stops which are arranged to cooperate in abutment support with a surface of an inertial element 120, or of an added element on an inertial element, such as a disc or the like, in particular a transparent disc making it possible to display the state of the blades 10.
    Indeed, the direct cooperation of axial stops with blades 10 is theoretically possible, but in practice is difficult to apply when the blades 10 are made of silicon or a similar material, and, although protected from shock, may be damaged by other contact stresses, which explains the preference for axial stops arranged to cooperate with the inertial element. Such an arrangement can, however, be used when using conventional steel leaf springs, or the like.
    [0058] FIG. 24 illustrates a variant in which the axial travel of the inertial element 120 is limited by limiting discs 61A and 61B forming axial stops above and below the resonator, and a theoretical arrangement suitable only for certain types of blades, with mechanical stops 401A and 401B in the vicinity of the blades 10, above and below the resonator, forming means of axial protection of the blades.
    [0059] FIG. 25 illustrates a variant better suited to blades 10 of silicon or micro-machinable material, metallic glass, or the like, where each blade 10A, 10B, has an eye or a clearance at the pivot axis, allowing passage a shaft, fixed to the plate 210, and which comprising static limiting discs 401 and 401 B, which are arranged to cooperate in abutment support with movable limiting discs 161A and 161B secured to the inertial element 120, while the blades 10A and 10B are arranged to remain at a distance from the static limiting disks 401 and 401B when the latter are in contact with these movable limiting disks 161A and 161 B. The shaft then also participates in the function of limiting race in the main plane.
    More particularly, the axial shockproof device 402 comprises a second flexible element axially prestressed 403.
    Thus, FIG. 26 is a variant of FIG. 25, where the shaft which carries the static limiting discs 401 and 401B is not rigidly fixed to the plate 210, but is suspended from an axial shock absorber 402 with preload comprising compression resistance couples, and staples, similar to those in figs. 10 to 13, of tensile strength. The prestressed spring in the form of a staple comprises staple heads 432, arranged to cooperate in a complementary manner, one with a shaft shuttle housing 490, and the other with a fixed structure housing 470 which the plate 120, springs 405 being interposed between a lower face of the shaft, and an upper face of a mushroom that the plate 210 comprises, these springs 405 exerting a repulsion force tending to oppose the return force staples 403. As in fig. 25, the shaft has static limiting discs 401 and 401 B, arranged to cooperate in abutment support with movable limiting discs 161A and 161B arranged to be fixed to the inertial element 120, while the blades 10A and 10B are arranged to remain at a distance from the static limiting discs 401 and 401B when the latter are in contact with these mobile limiting discs 161A and 161 B.
    In an advantageous variant, the resonator 100 comprises both, in the axial direction Z, such axial protection means 400 which comprise, on the one hand axial stops 401.401 A, 401 B, limiting axial travel at least one inertial element 120, or / and at least one blade 10, and on the other hand at least such an axial shock-absorbing device 402 comprising a second flexible element axially prestressed 403. More particularly, the resonator 100 comprises both, in the axial direction Z, axial protection means 400 which comprise, on the one hand axial stops 401, 401 A, 401 B, limiting axial stroke of at least one inertial element 120, and on the other hand at least one such axial shock-absorbing device 402 comprising a second flexible element axially prestressed 403.
    The invention also relates to a timepiece movement 200 comprising at least one such resonator 100.
    In a particular embodiment, this movement 200 comprises two rotary resonators 100, which are mounted in pitch to cancel the reactions at the level of the plate 210.
    In another particular embodiment, the movement 200 comprises three rotary resonators 100 mounted at 120 ° and phase shifted by a third of their period.
    The invention also relates to a watch 300 comprising at least one such movement 200.
    The invention provides many advantages, and in particular excellent protection against shocks.
    When using a first pre-stressed flexible element cooperating with a shuttle, the mobility of this shuttle avoids breakage of the blades (by compliance).
    The prestressing is necessary so that the rigidity of the blades in "shock-free" mode is not affected.
    The realization of a single piece of silicon machined by DRIE, or the like, avoids tedious assemblies.
    权利要求:
    Claims (25)
    [1]
    claims
    1. Resonator (100) with blade for mechanical movement (200) of watch (300), arranged to be fixed on a plate (210) of a said movement (200) or to constitute a said plate (210), said resonator (100) comprising a structure (110), arranged to be fixed on said plate (210) or to constitute said plate (210), and with respect to which structure (110) at least one inertial element (120) is arranged to vibrate or / and oscillate, and said resonator (100) comprising at least one elastic blade (10) extending between, at a first end (11) a first anchor (1) arranged at said structure (110) and at a second end (12) a second anchor (2) arranged at the level of said at least one inertial element (120), and said blade (10) being arranged to vibrate essentially in a main plane (PP), where said at least a blade (10) constitutes a guide for said inertial element (120) in said main plane (PP), and where, for the shock protection of said blades (10) which it comprises, said resonator (100) comprises at least, at said first anchoring (1) or / and at said second anchoring (2), at least one device plan shockproof (20) arranged to protect each said at least one blade (10) from breaking in the event of an impact, said planar shockproof device (20) comprising at least a first flexible prestressed element (30) with a prestressing force in said main plane (PP) adjusted to a predetermined safety force value, characterized in that said resonator comprises a plurality of said blades (10) forming with each other a pivot with crossed blades, and in that said pivot crossed blades comprises at least two levels (150), each comprising, in one piece, a said blade (10), a first flexible prestressed element (30), and blade positioning supports (160).
    [2]
    2. Resonator (100) according to claim 1, characterized in that, for the three-dimensional shock protection of said blades (10) which it comprises, said resonator (100) comprises, in an axial direction (Z) perpendicular to said main plane (PP), axial protection means (400) which comprise either axial stops (401; 401 A; 401B) for limiting the axial travel of at least one inertial element (120), or else at least one device axial shock absorber (402) comprising a second axially prestressed flexible element (403).
    [3]
    3. Resonator (100) according to claim 1, characterized in that, for the three-dimensional shock protection of said blades (10) which it comprises, said resonator (100) comprises, in an axial direction (Z) perpendicular to said main plane (PP), axial protection means (400) which comprise, on the one hand axial stops (; 401A; 401 B) for limiting the axial travel of at least one inertial element (120), and on the other hand an axial shock-absorbing device (402) comprising a second axially prestressed flexible element (403).
    [4]
    4. Resonator (100) according to one of claims 1 to 3, characterized in that said plan shockproof device (20) comprises at least one first prestressed flexible element (30) arranged to allow a variation in length during expansion or of a contraction of said at least one blade (10) in a range of lengths (Lmin; Lmax) corresponding to the normal operation of said at least one blade (10) under the action of a force of intensity less than a threshold (S), and to prevent expansion or contraction of said at least one blade (10) outside said first range of lengths (Lmin; Lmax) when said blade (10) is subjected to a tensile force or respectively of intensity compression greater than said threshold (S).
    [5]
    5. Resonator (100) according to one of claims 1 to 4, characterized in that each said blade (10) is protected both by a first said plan shockproof device (20) arranged to protect it in traction, and by a second said planar shockproof device (20) arranged to protect it in compression.
    [6]
    6. Resonator (100) according to one of claims 1 to 5, characterized in that each said blade (10) is arranged to exert a force for returning said at least one inertial element (120) to a neutral position thereof. this.
    [7]
    7. Resonator (100) according to one of claims 1 to 6, characterized in that said resonator (100) with blade is a rotary resonator.
    [8]
    8. Resonator (100) according to one of claims 1 to 7, characterized in that said plan shockproof device (20) comprises at least one first prestressed flexible element (30) at said first anchoring (1) and at said level second anchor (2).
    [9]
    9. Resonator (100) according to one of claims 1 to 8, characterized in that said plan shockproof device (20) comprises at least one stop (50) arranged to limit the travel of said first end (11) or said second end (12), or / and at least one stop (60) arranged to limit the travel of said at least one inertial element (120).
    [10]
    10. Resonator (100) according to claim 9, characterized in that at least one said first pre-stressed flexible element (30) is enclosed in a cage (40) comprising or constituting a said stop (50).
    [11]
    11. Resonator (100) according to claim 9 or 10, characterized in that said at least one first prestressed flexible element (30) is placed between said structure (110) and one said at least one inertial element (120), and in that said planar anti-shock device (20) comprises at least one stop (60) integral with said structure (110) and arranged to limit the travel of said at least one inertial element (120).
    [12]
    12. Resonator (100) according to claim 6 or 8, characterized in that said structure (110) is distinct from said plate (210), and in that said at least one first prestressed flexible element (30) is placed between said structure (110) and said plate (210), and in that said plan shockproof device (20) comprises at least one stop (60) integral with said plate (210) and arranged to limit the travel of said at least one inertial element ( 120).
    [13]
    13. Resonator (100) according to one of claims 1 to 12, characterized in that said at least at least one plan shockproof device (20) comprises a base (70), which is arranged to be fixed on said structure (110 ) or on said at least one inertial element (120) or on said plate (210), said base (70) carrying, through at least one elastic suspension element (80), a shuttle (90) to which is fixed said first end (11) or said second end (12) of said at least one blade (10), and comprises at least one said first pre-stressed flexible element (30) constituted by a pre-stressed spring in the form of a clip (31 ) comprising two staple heads (32) arranged to cooperate in a complementary manner, one with a shuttle housing (92), and the other with a structure housing (112) that comprises said structure (110) or the said at least one inertial element (120) or said plate (210), in a counter state nt, in tension or in compression, of said clip (31).
    [14]
    14. Resonator (100) according to claim 13, characterized in that said base (70) and said shuttle (90) for attaching said blade (10) are in one piece.
    [15]
    15. Resonator (100) according to claim 14, characterized in that said base (70), said shuttle (90) for attaching said blade (10), and said clip (31) are in one piece.
    [16]
    16. Resonator (100) according to one of claims 13 to 15, characterized in that said resonator (100) comprises a monobloc component (25) which groups together all of said bases (70), all of said shuttles (90), and all of said staples (31) which comprise the plan shockproof devices (20) which comprise said resonator (100).
    [17]
    17. Resonator (100) according to claim 16, characterized in that said one-piece component (25) is made of silicon.
    [18]
    18. Resonator (100) according to one of claims 1 to 17, characterized in that each blade (10) that comprises said resonator (100) is made of thermally compensated silicon.
    [19]
    19. Resonator (100) according to one of claims 1 to 17, characterized in that each blade (10) that comprises said resonator (100) is made of amorphous metal.
    [20]
    20. Resonator (100) according to claim 11 or 12, characterized in that at least one said stop (60) is placed at the center of rotation of said inertial element (120) so as to minimize the disturbing torque in the event of an impact.
    [21]
    21. Resonator (100) according to one of claims 1 to 20, characterized in that said resonator (100) comprises a said plan shockproof device (20) and said blades (10) arranged so as to constitute two pivots in vee head to tail, and in combination with a fixed stop (60) that comprises said structure (110) or said at least one inertial element (120) or said plate (210), placed at the center of rotation of said inertial element (120) .
    [22]
    22. Clock movement (200) comprising at least one resonator (100) according to one of claims 1 to 21.
    [23]
    23. Clock movement (200) according to claim 22, characterized in that said movement (200) comprises two said rotary resonators (100) mounted in pitch to cancel reactions at said plate (210).
    [24]
    24. Clockwork movement (200) according to claim 23, characterized in that said movement (200) comprises three said rotary resonators (100) mounted at 120 ° and phase shifted by a third of their period.
    [25]
    25. Watch (300) comprising at least one movement (200) according to one of claims 22 to 24.
    ig. 9
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    同族专利:
    公开号 | 公开日
    CH713166B1|2021-10-29|
    EP3324247B1|2019-11-27|
    CH713164A2|2018-05-31|
    CH713165A2|2018-05-31|
    CH713165B1|2021-10-29|
    CN108073065B|2019-12-03|
    CH713164B1|2021-10-29|
    US20180136609A1|2018-05-17|
    EP3324247A1|2018-05-23|
    US10216149B2|2019-02-26|
    JP2018081094A|2018-05-24|
    JP6453982B2|2019-01-16|
    CH713166A2|2018-05-31|
    CN108073065A|2018-05-25|
    CH713167B1|2021-10-29|
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    EP1696286B1|2005-02-23|2010-12-29|ETA SA Manufacture Horlogère Suisse|Shock-damping bearing for timepieces|
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    WO2015097172A2|2013-12-23|2015-07-02|The Swatch Group Research And Development Ltd|Device intended to control the angular speed of a train in a timepiece movement and including a magnetic escapement|
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    EP3035127B1|2014-12-18|2017-08-23|The Swatch Group Research and Development Ltd.|Clock oscillator with tuning fork|
    EP3254158A1|2015-02-03|2017-12-13|ETA SA Manufacture Horlogère Suisse|Isochronous timepiece resonator|
    EP3054356B1|2015-02-03|2017-12-13|ETA SA Manufacture Horlogère Suisse|Isochronous clock resonator|
    EP3067756B1|2015-03-09|2017-11-22|Nivarox-FAR S.A.|Swivel assembly for a timepiece|EP2952977A1|2014-06-03|2015-12-09|Nivarox-FAR S.A.|Timepiece component made of welded materials|
    EP3324246B1|2016-11-16|2019-11-06|The Swatch Group Research and Development Ltd|Protection of a resonator mechanism with axial impact blades|
    EP3561607B1|2018-04-23|2022-03-16|ETA SA Manufacture Horlogère Suisse|Collision protection of a resonator mechanism with rotatable flexible guiding|
    JP6843191B2|2018-07-24|2021-03-17|ザ・スウォッチ・グループ・リサーチ・アンド・ディベロップメント・リミテッド|Timekeeping oscillator with flexor bearings with long square strokes|
    EP3438762A3|2017-07-28|2019-03-13|The Swatch Group Research and Development Ltd|Timepiece oscillator having flexible guides with wide angular travel|
    US20200033804A1|2018-07-24|2020-01-30|The Swatch Group Research And Development Ltd|Method for making a flexure bearing mechanism for a mechanical timepiece oscillator|
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    EP3561609A1|2018-04-23|2019-10-30|ETA SA Manufacture Horlogère Suisse|Shock protection of a resonator mechanism with rotatable flexible guiding|
    EP3824353A1|2018-07-16|2021-05-26|Patek Philippe SA Genève|Flexure pivot oscillator insensitive to gravity|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    EP16199012|2016-11-16|
    CH01512/16A|CH713138A2|2016-11-16|2016-11-16|Protection of the blades of a mechanical watch resonator in case of shock.|
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