• 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:
    Device for a timepiece comprising a support (15), an inertial regulating member (18) rotatably mounted relative to the support (15), by an elastic suspension (19) connecting said regulating member to the support. The regulating member comprises a number n of rigid portions (20) connected together in pairs by n coupling elastic links (21). The elastic suspension comprises n resilient suspension links (22) respectively connecting each rigid portion (20) to the support.
    公开号:FR3059792A1
    申请号:FR1661782
    申请日:2016-12-01
    公开日:2018-06-08
    发明作者:Guy Semon；Thomas MERCIER；Florian Danard；Wout Johannes Benjamin Ypma；Sybren Lennard Weeke；Maarten Pieter Lustig
    申请人:LVMH Swiss Manufactures SA；
    IPC主号:
    专利说明:

    (57) Device for a timepiece comprising a support (15), an inertial regulating member (18) rotatably mounted relative to the support (15), by an elastic suspension (19) connecting said regulating member to the support. The regulating member comprises a number n of rigid portions (20) linked together in pairs by n elastic coupling links (21). The elastic suspension comprises n elastic suspension connections (22) respectively connecting each rigid portion (20) to the support.
    i
    Device for a timepiece, timepiece movement and timepiece comprising such a device.
    FIELD OF THE INVENTION
    The present invention relates to devices for timepieces, as well as to watch movements and timepieces comprising such devices.
    BACKGROUND OF THE INVENTION
    Devices for timepieces are known comprising a planar mechanism extending along a mean plane, said mechanism comprising:
    a support,
    - an inertial regulating member connected to the support, by an elastic suspension, said regulating member having substantially an axial symmetry of order n with respect to a central axis orthogonal to said mean plane and fixed with respect to the support, being an integer at less than 2.
    The document W02016091823A1 describes an example of such a device.
    The object of the present invention is in particular to improve devices of this type, in particular to improve their temporal precision.
    OBJECTS AND SUMMARY OF THE INVENTION
    To this end, according to the invention, a device of the kind in question is characterized in that said regulating member comprises a number n of rigid portions connected together in pairs by n elastic coupling links, and in that the elastic suspension comprises n elastic suspension links respectively connecting each rigid portion to the support.
    Thanks to these provisions, it avoids having over-stresses on the regulating member and its elastic suspension, which improves the isochronism of the mechanism.
    In various embodiments of the device according to the invention, one can optionally have recourse to one and / or the other of the following provisions:
    - The regulating member is movable substantially in rotation about said central axis;
    - The rigid portions of the regulating member are mobile both in rotation and in radial translation relative to the central axis;
    - The elastic suspension links each comprise at least one elastic branch;
    - The number n is at least equal to 3 and each rigid portion is connected to two adjacent rigid portions respectively by two elastic coupling links;
    - the number is not equal to 3;
    - The rigid portions each comprise a part in the form of an arc of a circle centered on the central axis;
    - the parts in the shape of an arc of a circle are close to each other and together form a discontinuous ring;
    - The parts in the form of an arc of a circle each extend angularly between a first end and a second end which overlap each other in angular direction;
    the parts in the form of an arc of a circle each extend angularly between a first end and a second end, the second end being extended radially by a rigid arm terminated by a spout extending angularly beyond the second end, and each elastic coupling link comprising at least one elastic coupling branch extending substantially radially with respect to the central axis and connecting said spout of each rigid portion to the first end of the arcuate part of a rigid portion adjacent;
    - The support comprises at least one central part surrounded by the rigid portions of the regulating member and each elastic suspension connection comprises at least one elastic suspension branch extending substantially radially inwards from the corresponding rigid portion to said central part of the support;
    the mechanism further comprises an anchor adapted to cooperate with an energy distribution member provided with teeth and intended to be stressed by an energy storage device, said anchor being controlled by said regulating member to regularly and alternately block and releasing the energy distribution member, so that said energy distribution member moves step by step under the stress of the energy storage device according to a repetitive movement cycle, and said anchor being adapted to transfer from mechanical energy to said regulating organ during this repetitive movement cycle;
    - Said anchor is connected to the support by two elastic branches of anchor suspension and to one of the rigid portions of the regulating member by at least one elastic drive branch;
    - The elastic anchor suspension branches are arranged so that said anchor is movable substantially in rotation about an additional axis of rotation parallel to said central axis;
    - The anchor comprises a rigid main body which comprises two stop members adapted to cooperate with the teeth of the energy distribution member, the main body of the anchor being disposed internally relative to the d-shaped part. 'arc of a rigid portion and the anchor further comprising a rigid drive arm secured to the main body and connected to the rigid arm of said rigid portion by said elastic drive branch;
    - The device comprises movement limitation means adapted to limit the deflections of at least one rigid portion of the regulating member relative to the support;
    - Said movement limitation means limit an angular movement of said at least one rigid portion of the regulating member relative to the support, around the central axis;
    - Said movement limitation means comprise a slot formed in said at least one rigid portion of the regulating member and extending angularly around the central axis, and a pin which is integral with the support and which is disposed in the slot ;
    said movement limiting means comprise a rigid movement limiting arm belonging to said at least one rigid portion of the regulating member, and two complementary movement limiting members belonging to the support and radially framing said movement limiting arm, said movement limitation arm extending angularly relative to the central axis;
    - The movement limitation arm has a free end provided with a head enlarged in the radial direction, said head being wider than the spacing between the two complementary movement limitation members belonging to the support;
    - The enlarged head is angularly movable in a recess in an arc centered on the central axis, which is formed in the support, said recess emerging from said support by a narrowed opening delimited by two flanges belonging to said support and forming said limiting members complementary movements;
    the support is arranged at least partially around the regulating member, each rigid portion comprises a part in the form of an arc of a circle centered on the central axis and a rigid arm extending from the part in the form of an arc of circle to an inner end close to the central axis, each elastic suspension link comprising an elastic suspension branch connecting the support to the internal end of the rigid arm and extending substantially radially with respect to the central axis, and each elastic coupling link comprising at least one elastic coupling branch connecting the arcuate part of a rigid portion to the first end of the rigid arm of an adjacent rigid portion, said elastic coupling branch extending substantially radially with respect to the central axis.
    Furthermore, the invention also relates to a timepiece movement comprising the device as defined above and an energy distribution member provided with teeth and intended to be stressed by an energy storage device, said device comprising an anchor adapted to cooperate with the energy distribution member, said anchor being controlled by said regulating member to regularly and alternately block and release the energy distribution member, so that said energy distribution member does not move step by step under the energy storage device according to a repetitive movement cycle, and said anchor being adapted to transfer mechanical energy to said regulating member during this repetitive movement cycle.
    Finally, the invention also relates to a timepiece comprising a movement as defined above.
    BRIEF DESCRIPTION OF THE DRAWINGS
    Other characteristics and advantages of the invention will appear during the following description of several of its embodiments, given by way of nonlimiting examples, with reference to the accompanying drawings.
    In the drawings:
    FIG. 1 is a schematic view of a timepiece which may include a mechanism according to an embodiment of the invention,
    FIG. 2 is a block diagram of the movement of the timepiece of FIG. 1,
    FIG. 3 is a plan view of part of the movement of FIG. 2 according to a first embodiment of the invention, comprising the regulator, the anchor and the energy distribution member,
    - Figures 4 and 5 are views similar to Figure 3, showing two extreme positions of the mechanism,
    FIGS. 6 to 8 are views similar respectively to FIGS. 3 to 5, for a second embodiment of the invention,
    - And Figures 9 and 10 are views similar to Figure 3, respectively for third and fourth embodiments of the invention.
    MORE DETAILED DESCRIPTION
    In the various figures, the same references designate identical or similar elements.
    FIG. 1 represents a timepiece 1 such as a watch, comprising:
    - a housing 2,
    - a watch movement 3 contained in the case
    2,
    - generally, a winder 4,
    - a dial 5,
    - a glass 6 covering the dial 5,
    a time indicator 7, comprising for example two hands 7a, 7b respectively for the hours and the minutes, placed between the glass 6 and the dial 5 and actuated by the watch movement 3.
    As shown diagrammatically in FIG. 2, the watch movement 3 can include, for example:
    a device 8 for storing mechanical energy, generally a barrel spring,
    a mechanical transmission 9 driven by the device 8 for storing mechanical energy,
    - the aforementioned time indicator 7,
    an energy distribution member 10 (for example an escape wheel),
    an anchor 11 adapted to sequentially retain and release the energy distribution member 10,
    - A regulator 12, which is a mechanism comprising an oscillating inertial regulating member, controlling the anchor 11 to move it regularly so that the energy distribution member is moved step by step at constant time intervals.
    Anchor 11 and regulator 12 form a mechanism
    13. As shown in the various figures, the mechanism 13 is advantageously a monolithic system formed in the same plate 14 (usually plane) and the moving parts of which are designed to move essentially in a mean plane of said plate 14.
    The plate 14 can be thin, for example about 0.05 to about 1 mm, depending on the nature of the material of the plate 14.
    The plate 14 may have transverse dimensions, in the XY plane of the plate (in particular width and length, or diameter), of between approximately 10 mm and 40 mm. X and Y are two perpendicular axes defining the plane of the plate 14.
    The plate 14 can be made of any suitable rigid material, preferably having a low Young's modulus to present good elasticity properties and a low oscillation frequency. Examples of materials that can be used to make the silicon plate 14, nickel, the iron / nickel alloy, titanium. In the case of silicon, the thickness of the plate 14 can for example be between 0.2 and 0.6 mm.
    As understood here, by mechanism is meant steel, monolithic, a mechanism composed of elements which, by the nature or form of their assembly, are integral with one another to the point that any deformation of 'a component leads to deformation of the other parts. The monolithic mechanism can advantageously be formed in a single piece of material, possibly treated to present an outer layer of a different nature from the rest of the material (for example an oxidized layer). As a variant, the monolithic mechanism may also include certain added parts (for example glued, welded or other) in the plane of the plate.
    The various members formed in the plate 14, are obtained by making openings in the plate 14, obtained by any manufacturing process used in micromechanics, in particular the processes used for manufacturing MEMS.
    In the case of a silicon plate 14, the plate can be locally hollowed out, for example by deep reactive ion etching (DRIE - Deep Reactive Ion Etching) or possibly by laser cutting for small series.
    In the case of an iron / nickel plate 14, the plate could in particular be produced by the LIGA process, or by laser cutting.
    In the case of a steel or titanium plate 14, the plate 14 can be hollowed out, for example by wire EDM (WEDM).
    The constituent parts of the mechanism will now be described in more detail. Some of these parts are rigid and others (in particular those called “elastic branches”) are elastically deformable, essentially in bending. The difference between the rigid parts and the elastic parts is their stiffness in the XY plane of the plate 14, which is due to their shape and in particular to their slenderness. The slenderness can be measured in particular by the slenderness ratio (length / width ratio of the part concerned). For example, the rigid parts have a stiffness at least about 100 times higher in the XY plane, than the elastic parts. Typical dimensions for elastic connections, for example the elastic branches which will be described below, include lengths for example between 5 and 13 mm and widths for example between 0.01 mm (10 pm) and 0.04 mm (40 pm), especially about 0.025 mm (25 pm). Given the widths of the beams and the thickness of the plate 14, the slenderness ratio of these beams in longitudinal section is between 5 and 60. The greatest slenderness ratio is to be preferred to limit the modes out of plane oscillation.
    The plate 14 includes a support 15, 115, 215, 315 which is secured to a support plate 14a, for example by screws or the like (not shown) passing through holes 15a, 115a, 215a, 315a of the support 15, 115, 215, 315. The support plate 14a is secured to the housing 2 of the timepiece 1.
    The energy distribution member 10 may be an escapement wheel rotatably mounted for example on the support plate 14a, so as to be able to rotate about an axis of rotation ZI perpendicular to the plane XY of the plate 14. L the energy distribution member 10 is requested by the energy storage device 8 in a single direction of rotation 16.
    The energy distribution member 10 has external teeth 17.
    In all the embodiments of the invention, the regulating member of the regulator 12 is connected to the support 15, 115, 215, 315, by an elastic suspension connecting said regulating member to the support. More specifically, said regulating member 12 has substantially an axial symmetry of order n with respect to a axeο central axis Z0 orthogonal to the mean plane XY and fixed with respect to the support 15, 115, 215, 315. By "has substantially an axial symmetry of order n ", it is understood that the regulating member 12 is essentially shaped according to this symmetry, but that certain parts of relatively negligible mass may not have this symmetry (for example parts used for coupling the anchor with the regulating organ).
    Said regulating member 12 comprises a number n of rigid portions connected to each other two by two by n elastic coupling links, not being an integer at least equal to 2.
    The elastic suspension comprises n elastic suspension links respectively connecting each rigid portion of the regulating member to the support 15, 115, 215,
    315.
    In particular, the elastic suspension can be provided for guiding the regulating member 18; 118; 218; 318 is movable substantially in rotation about the central axis Z0.
    The number is advantageously equal to 3; it can however be equal to 2 or more gue 3. When the number is not 3 or more, each rigid portion of the regulating member is connected to two adjacent rigid portions of the regulating member respectively by two elastic coupling links .
    First embodiment:
    In the first embodiment of the invention, represented in FIGS. 3 to 5, the number is not equal to 3. The regulating member 18 of the regulator 12 can have a generally annular shape centered on the central axis Z0 and comprises 3 rigid portions 20 linked together in pairs by 3 elastic coupling links 21.
    The elastic suspension 19 which connects the regulating member 18 of the regulator 12 to the support 15, comprises 3 elastic suspension connections 22 respectively connecting each rigid portion 20 to the support 15 so that each rigid portion 20 is movable according to an at least rotational movement around the central axis Z0, the regulating member having an overall movement substantially of rotation around the central axis Z0.
    Each elastic suspension link 22 advantageously comprises at least one elastic branch 23, for example an elastic branch 23. Each elastic branch 23 may possibly comprise a rigid section 23a, for example towards the center of said elastic branch 23.
    Due to the fact that the elastic branches 23 flex during the rotation of the regulating member, the rigid portions 20 of the regulating member are mobile both in rotation and in radial translation relative to the central axis Z0.
    The support 15 may possibly have a substantially star shape, with three branches 15b connected by a central part 15c.
    The rigid portions 20 of the regulating member 18 may each comprise a part 24 in the form of an arc of a circle centered on the central axis Z0. The parts 24 in the form of an arc of a circle are close to each other and together form a discontinuous ring centered on the central axis Z0.
    Each elastic extending branch 23 can be substantially radially with respect to the central axis Z0 and connect the part 24 in the form of a circular arc of one of the rigid portions 20, to the aforementioned central part 15c of the support 15.
    The parts 24 in the form of an arc of a circle each extend angularly between a first end 25 and a second end 26 which overlap each other in angular direction. For example, each first end 25 can form a first finger 25a extending towards the adjacent rigid portion 20 and each second end 26 can form a second finger 26a extending towards the adjacent rigid portion 20, each first finger 25a overlapping towards the outside the second finger 26a of the rigid portion 20 adjacent.
    The second end 26 of each part 24 in the form of an arc of a circle can be extended substantially radially inwards by a rigid arm 27 terminated by a spout 28 extending angularly beyond the second end, in the direction of the adjacent rigid portion 20.
    Each elastic coupling link 21 may comprise at least one elastic coupling branch 21a (here 2 elastic coupling branches 21a parallel) extending substantially radially with respect to the central axis Z0 and connecting the spout 28 of each rigid portion 20 to the first end 25 of the part 24 in an arc of the adjacent rigid portion 20.
    The deflections of each rigid portion 20 of the regulating member can be limited by means of movement limitation relative to the support 15, to limit the deflections, in particular angular, of the rigid portions 20 and protect the mechanism 13 in particular in the event of impact or more usually when it experiences strong acceleration.
    These movement limitation means may comprise a slot 29 formed in each part 24 in an arc of a circle and extending angularly around the central axis Z0, and a pin 30 which is integral with the support 15 (in fact, fixed to the support plate 14a) and which is disposed in the slot 29. The slots 29 are shaped according to the kinematics of the rigid portions 20 during the rotational movement of the regulating member 18. The slots 29 are therefore not of circular shape centered on the central axis Z0, but here rather in the form of sections of spirals.
    The aforementioned movement limitation means, or similar movement limitation means, could be provided in the other embodiments of the invention.
    The anchor 11 and the energy distribution member 10 can be arranged inside the regulating member 18.
    The anchor 11 is a rigid part which may include a rigid body 31 adjacent to the part 24 in an arc of a circle of one of the rigid portions 20 of the regulating member. The anchor 11 may further comprise a rigid drive arm 32 which is integral with the rigid body 31 and which extends towards one of the branches 15c of the support from said rigid body 31.
    The anchor 11 is elastically connected to the support 15, so as to be able to oscillate, for example according to a movement substantially in rotation about an axis Z2 perpendicular to the plane XY. The oscillations of the anchor 11 are controlled by the regulating member 18.
    To this end, the rigid arm 27 of one of the rigid portions 20 of the regulating member can be extended inward by an additional rigid arm 33, the free end of which is connected to the free end of the rigid arm of drive 32 by an elastic drive branch 34.
    Advantageously, the anchor 11 can be connected to the support 15 by an elastic suspension, comprising for example two elastic branches 35 of the anchor suspension converging substantially towards the axis Z2. Optionally, the elastic branches 35 can connect the rigid body 31 to the free end 15c of one of the branches 15b of the support.
    The anchor 11 comprises two stop members 36, 37 in the form of lugs projecting substantially towards the axis Zl, which are adapted to cooperate with the energy distribution member 10.
    The anchor 11 is thus controlled by said regulating member to regularly and alternately block and release the energy distribution member 10 by means of the stop members 36, 37, so that said energy distribution member 10 moves step by step in direction 16 under the stress of the energy storage device 8 according to a repetitive movement cycle, and said anchor 11 is further adapted to transfer mechanical energy to the regulating member 18 at during this repetitive movement cycle, in a manner known per se.
    In an exemplary embodiment, the total mass of the oscillating parts of the mechanism may be approximately 0.33 g and their inertia approximately 20.19 10_ 9 kg.m 2 , the frequency of oscillation of the regulating member is about 18 Hz and the rotational stiffness of the mechanism is about 2.58 10_ 4 Nm / rad. Such a mechanism has very good isochronism, which leads to very good temporal precision.
    Second embodiment:
    In the second embodiment of the invention, represented in FIGS. 6 to 8, the number is not yet equal to 3. The regulating member 118 of the regulator 12 comprises 3 rigid portions 120 linked together in pairs by 3 elastic coupling links 121.
    The elastic suspension 119 which connects the regulating member 118 of the regulator 12 to the support 115, comprises 3 elastic suspension connections 122 respectively connecting each rigid portion 120 to the support 115 so that each rigid portion 20 is movable according to an at least rotational movement around the central axis Z0.
    Each elastic suspension link 122 advantageously comprises at least one elastic branch 123, for example an elastic branch 123. Each elastic branch 123 may optionally include a rigid section 123a, for example towards the center of said elastic branch 123.
    Due to the fact that the elastic branches 123 flex during the rotation of the regulating member, the rigid portions 120 of the regulating member are mobile both in rotation and in radial translation relative to the central axis Z0.
    The support 115 may possibly have an annular shape surrounding the regulator 118, the energy distribution member 10 and the anchor 11.
    The rigid portions 120 of the regulating member 118 may each comprise a portion 124 in the form of an arc of a circle centered on the central axis Z0. The parts 124 in the form of an arc of a circle are here relatively spaced from one another in the circumferential direction.
    Each rigid portion 120 may further comprise a rigid arm 127 which extends substantially radially inwards from the part 124 in the form of an arc of a circle, to a central end 128 in the form of a heel. Each elastic branch 123 may extend substantially radially with respect to the central axis Z0, between the central end 128 of one of the rigid parts 120 and the support 115, passing between two adjacent parts 124.
    Each elastic coupling link 121 may comprise at least one elastic coupling branch 121a (here 2 elastic coupling branches 121a parallel) extending substantially radially with respect to the central axis Z0 and connecting the central end 128 of each rigid portion 20 to the part 124 in an arc of a rigid portion 120 adjacent.
    The anchor 11 is a rigid piece which can comprise, for example, two ilia branches, 111b joined together forming an angle, for example of the order of 90 degrees, the branch 111a here being extended beyond the branch 111b by a heel 111c.
    The anchor 11 is connected elastically to the support 115, so as to be able to oscillate, for example according to a movement substantially in rotation around an axis Z2 perpendicular to the plane XY. The oscillations of the anchor 11 are controlled by the regulating member 118.
    To this end, the rigid arm 127 of one of the rigid portions 120 of the regulating member can be connected for example to the branch 111a of the anchor by an elastic drive branch 134, possibly provided with a rigid central section. 134a.
    Advantageously, the anchor 11 can be connected to the support 115 by an elastic suspension, comprising for example two elastic branches 135 of the anchor suspension converging substantially towards the axis Z2. Optionally, the elastic branches 23 can connect the heel 111c of the anchor 11 to the support 115.
    The anchor 11 comprises two stop members 136, 137 in the form of lugs projecting substantially towards the axis Zl, which are adapted to cooperate with the energy distribution member 10.
    The anchor 11 is thus controlled by said regulating member 118 to regularly and alternately block and release the energy distribution member 10 using the stop members 136, 137, so that said distribution member energy 10 moves step by step in direction 16 under the stress of the energy storage device 8 according to a repetitive movement cycle, and said anchor 11 is further adapted to transfer mechanical energy to the regulating member 118 during this repetitive movement cycle, in a manner known per se.
    Third embodiment:
    In the third embodiment of the invention, shown in FIG. 9, the number is not yet equal to 3. The regulating member 218 of the regulator 12 can have a generally annular shape centered on the central axis Z0 and comprises 3 rigid portions 220 linked together in pairs by 3 elastic coupling links 221.
    The rigid portions 220 of the regulating member 218 may each comprise a part 224 in the form of an arc of a circle centered on the central axis Z0. The parts 224 in the shape of an arc of a circle are close to each other and together form a discontinuous ring centered on the central axis Z0.
    The parts 224 in the form of an arc of a circle each extend angularly between a first end 225 and a second end 226 which overlap each other in angular direction. For example, each second end 226 can extend at an angular angle towards the adjacent rigid portion 220 and radially inwards, up to a spout 228 covered towards the outside by the first end 225 of the adjacent rigid portion 220.
    Each elastic coupling link 221 may comprise at least one elastic coupling branch 221a (here 2 elastic coupling branches 221a parallel) extending substantially radially with respect to the central axis Z0 and connecting the spout 228 of each rigid portion 220 to the first end 225 of the portion 224 in an arc of the adjacent rigid portion 220.
    The support 215 is arranged in the center of the regulating member 218.
    The elastic suspension 219 which connects the regulating member 218 of the regulator 12 to the support 215, comprises 3 elastic suspension links 222 respectively connecting each rigid portion 220 to the support 215 so that each rigid portion 220 is movable in at least one rotational movement around the central axis Z0.
    Each elastic suspension link 222 can for example connect the support 215 (for example an angle 215b of the support 215 when this support has a substantially triangular shape as in the example shown).
    Each elastic suspension link 222 can optionally comprise an intermediate rigid body 238 which comprises for example an arcuate part 230 of concavity oriented towards the corresponding angle 215b of the support 215 and a rigid link arm 240 oriented substantially opposite said angle 215b .
    The arcuate part 230 can be connected to said angle 215b for example by two elastic branches 241 converging towards the angle 215b.
    The rigid link arm 240 can be connected to the second end 226 of the part 224 in a corresponding arc, for example by two elastic elastic branches 242, which may optionally include rigid central sections 242a.
    The anchor 11 and the energy distribution member 10 can be arranged inside the regulating member 218, for example at least partially in a recess 215c formed in the support 215.
    The anchor 11 can be formed by a rigid arm 231 which extends parallel to one of the flexible branches 241 of one of the elastic connections 222, from one end of the corresponding arc portion 239. The rigid arm 231 comprises two stop members 236, 237 in the form of lugs projecting substantially towards the axis Zl, which are adapted to cooperate with the energy distribution member 10.
    Fourth embodiment:
    In the fourth embodiment of the invention, represented in FIG. 10, the number is not yet equal to 3. The regulating member 318 of the regulator 12 can have a generally annular shape centered on the central axis Z0 and comprises 3 rigid portions 320 linked together in pairs by 3 elastic coupling links 321.
    The elastic suspension 319 which connects the regulating member 318 of the regulator 12 to the support 315, comprises 3 elastic suspension links 322 respectively connecting each rigid portion 320 to the support 315 so that each rigid portion 320 is movable in a movement of at least rotation around the central axis Z0.
    Each elastic suspension link 322 advantageously comprises at least one elastic branch 323, for example an elastic branch 323. Each elastic branch 323 may possibly comprise a rigid section 323a, for example towards the center of said elastic branch 323.
    Due to the fact that the elastic branches 323 bend during the rotation of the regulating member, the rigid portions 320 of the regulating member are mobile both in rotation and in radial translation relative to the central axis Z0.
    The support 315 may possibly have a substantially star shape, with three branches 315b connected by a central part 315c.
    The rigid portions 320 of the regulating member 318 may each comprise a part 324 in the form of an arc of a circle centered on the central axis Z0. The parts 324 in the shape of an arc of a circle are close to each other and together form a discontinuous ring centered on the central axis Z0.
    Each elastic branch 323 can extend substantially radially with respect to the central axis Z0 and connect the part 324 in the form of an arc of a circle of one of the rigid portions 320, to the aforementioned central part 315c of the support 315.
    The parts 324 in the form of an arc of a circle each extend angularly between a first end 325 and a second end 326. The second end 326 of each part 324 in the form of an arc of a circle can be extended substantially radially inwards. by a rigid arm 327 terminated by a spout 328 extending angularly beyond the second end, in the direction of the adjacent rigid portion 320.
    Each elastic coupling link 321 may comprise at least one elastic coupling branch 321a (here 2 elastic coupling branches 321a parallel) extending substantially radially with respect to the central axis Z0 and connecting the spout 328 of each rigid portion 20 to the first end 325 of the portion 324 in an arc of the adjacent rigid portion 320.
    The deflections of at least certain rigid portions 320 of the regulating member can be limited by means of movement limitation with respect to the support 15, to limit the deflections, in particular angular, of the rigid portions 320 and to protect the mechanism in particular in the event of impact or more generally when it undergoes strong accelerations.
    These movement limiting means may comprise a rigid movement limiting arm 329 belonging to at least one rigid portion 320 of the regulating member 318, and two complementary movement limiting members 330a belonging to the support 315 and radially framing said arm. movement limitation 329, said movement limitation arm extending angularly relative to the central axis Z0. The rigid movement limitation arm 329 can penetrate into a recess 330 formed in the support 315. Said recess 330 opens out from said support 315 in the XY plane by a narrowed opening delimited by two flanges belonging to said support and forming said limitation limitation members. complementary movement 330a.
    Advantageously, each movement limitation arm 329 may include a free end provided with a head 329b widened in the radial direction, said head 329b being disposed in the recess 330 and being wider than the spacing between the two limiting organs of complementary movement 330a belonging to the support.
    Each recess 330 can be shaped substantially in an arc centered on the central axis Z0, and each movement limitation arm can be shaped substantially in an arc centered on the central axis, or more advantageously in a portion of a spiral in correspondence with the kinematics of the rigid portions 320 of the regulating member 318.
    In the example shown, one of the branches 315c of the support 315 has a recess 315d which receives the energy distribution member 10 and the anchor 11, and each of the other two branches 315c has two recesses 330 opening out to the opposite each other and receiving respectively two movement limitation arms 329 extending towards each other, belonging to one of the rigid portions 320. One of the rigid portions 320 may be devoid of arms movement limitation 329 but be coupled to the anchor 11 as will be explained below.
    For example, one of the two movement limitation arms 329 of each rigid portion 320 may be integral with a support arm 329a extending radially inward from the portion 324 in an arc
    of this rigid portion 320, in the neighbourhood of the first end 325 of said part 324 in bow of circle. The other limiting arm of movement 329 of the same rigid portion 320 can be in solidarity with arms rigid 327 mentioned above. The means of limitation of movement
    mentioned above, or similar movement limitation means, could be provided in the other embodiments of the invention.
    The anchor 11 is a rigid part which may comprise a rigid body 331 adjacent to the part 324 in an arc of a circle of one of the rigid portions 320 of the regulating member (the one which does not have a movement limitation arm
    329 in the example considered). The anchor 11 may further comprise a rigid drive arm 332 which is integral with the rigid body 331.
    The anchor 11 is elastically connected to the support 315, so as to be able to oscillate, for example according to a movement substantially in rotation around an axis Z2 perpendicular to the plane XY. The oscillations of the anchor 11 are controlled by the regulating member 318.
    To this end, the rigid arm 327 of the rigid portion 320 adjacent to the anchor 11 can be extended inward by an additional rigid arm 333 whose free end is connected to the free end of the rigid drive arm. 332 by an elastic drive branch 334 (possibly provided with a rigid central section 334a).
    Advantageously, the anchor 11 can be connected to the support 315 by an elastic suspension, comprising for example two elastic branches 335 of anchor suspension converging substantially towards the axis Z2.
    The anchor 11 comprises two stop members 336, 337 in the form of lugs projecting substantially towards the axis Zl, which are adapted to cooperate with the energy distribution member 10.
    The anchor 11 is thus controlled by said regulating member 318 for regularly and alternately blogging and releasing the energy distribution member 10 using the stop members 336, 337, so that said distribution member energy 10 moves step by step in the direction 16 under the stress of the energy storage device 8 according to a repetitive movement cycle, and said anchor 11 is further adapted to transfer mechanical energy to the regulating member 18 during this repetitive movement cycle, in a manner known per se.
    The anchor 11 may further comprise a monostable elastic member 341, which may be in the form of an elastic tongue, the free end of which comes to bear on the teeth 17 of the energy distribution member 10. The monostable elastic member 341 can be connected to the rigid body 331 of the anchor 11, for example by an elastic suspension comprising two substantially parallel elastic branches 339 extending to a rigid support 340 which carries the monostable elastic member 341. L monostable elastic member 341 is used so that the energy distribution member 10 transfers a precisely determined mechanical energy to the regulating member 318, at each operating cycle of the watch movement 3, as explained in document WO2016091951.
    权利要求:
    Claims (24)
    [1" id="c-fr-0001]
    1. Device for a timepiece comprising a mechanism (13) of planar shape extending along a mean plane (XY), said mechanism (13) comprising:
    a support (15; 115; 215; 315),
    - an inertial regulating member (18; 118; 218; 318) connected to the support (15; 115; 215; 315), by an elastic suspension (19; 119; 219; 319), said regulating member (18; 118; 218 ; 318) having substantially an axial symmetry of order n with respect to a central axis orthogonal to said mean plane and fixed with respect to the support, n being an integer at least equal to 2, characterized in that said regulating member (18; 118;
    218; 318) comprises a number n of rigid portions (20; 120; 220; 320) connected together in pairs by n elastic coupling links (21; 121; 221; 321), and in that the elastic suspension (19; 119; 219; 319) comprises n elastic suspension links (22; 122;
    222; 322) respectively connecting each rigid portion (20; 120; 220; 320) to the support.
    [2" id="c-fr-0002]
    2. Device according to claim 1, wherein the regulating member (18; 118; 218; 318) is movable substantially in rotation about said central axis (Z0).
    [3" id="c-fr-0003]
    3. Device according to claim 2, wherein the rigid portions (20; 120; 220; 320) of the regulating member are movable both in rotation and in radial translation relative to the central axis (Z0).
    [4" id="c-fr-0004]
    4. Device according to any one of the preceding claims, in which the elastic suspension links (22; 122; 222; 322) each comprise at least one elastic branch (23; 123; 223;
    323).
    [5" id="c-fr-0005]
    5. Device according to any one of the preceding claims, in which the number is not at least equal to 3 and each rigid portion (20; 120; 220; 320) is connected to two adjacent rigid portions (20; 120; 220 ; 320) respectively by two elastic coupling links (21; 121; 221; 321).
    [6" id="c-fr-0006]
    6. Device according to any one of the preceding claims, in which the number is not equal to 3.
    [7" id="c-fr-0007]
    7. Device according to any one of the preceding claims, in which the rigid portions (20; 120; 220; 320) each comprise a part (24; 124; 224; 324) in the form of an arc of a circle centered on the central axis (Z0).
    [8" id="c-fr-0008]
    8. Device according to claim 7, wherein the parts (24; 224; 324) in the form of an arc of a circle are close to each other and together form a discontinuous ring.
    [9" id="c-fr-0009]
    9. Device according to claim 8, in which the parts (24; 224) in the form of an arc of a circle each extend angularly between a first end (25; 225) and a second end (26; 226) which overlap. mutually in angular direction.
    [10" id="c-fr-0010]
    10. Device according to claim 8 or claim 9, wherein the parts (24; 324) in the form of an arc of a circle each extend angularly between a first end (25; 325) and a second end (26; 326 ), the second end being extended radially by a rigid arm (27; 327) terminated by a spout (28; 328) extending angularly beyond the second end (26; 326), and each elastic coupling link ( 21; 321) comprising at least one elastic coupling branch (21a, 321a) extending substantially radially with respect to the central axis (Z0) and connecting said spout (28; 328) of each rigid portion to the first end ( 25; 325) of the arcuate part of an adjacent rigid portion.
    [11" id="c-fr-0011]
    11. Device according to one of the preceding claims, in which the support (15; 215; 315) comprises at least one central part surrounded by the rigid portions (20; 220; 320) of the regulating member and each elastic suspension connection. (22;
    any of comprises at least one elastic branch of (23; 223; 323) extending substantially radially inward from the corresponding rigid portion to said central portion of the support.
    222; 322 any suspension of
    [12" id="c-fr-0012]
    12. Device according to one of the preceding claims, in which the mechanism (13) further comprises an anchor (11) adapted to cooperate with an energy distribution member (10) provided with teeth (17) and intended to be stressed. by an energy storage device (8), said anchor (it) being controlled by said regulating member (18; 118; 218; 318) for regularly and alternately blocking and releasing the energy distribution member (10) , so that said energy distribution member (10) moves step by step under the stress of the energy storage device (8) according to a repetitive movement cycle, and said anchor (11) being adapted to transfer from mechanical energy to said regulating organ (18; 118; 218; 318) during this repetitive movement cycle.
    [13" id="c-fr-0013]
    13. Device according to claim 12, wherein said anchor (it) is connected to the support (15; 15;
    215; 315) by two elastic suspension arms
    135; 241; 335) and to one of the portions
    120; 220; 320) of the regulating member by at least one elastic drive branch (34; 134;
    242; 334).
    [14" id="c-fr-0014]
    14. Device according to claim 13, wherein the elastic branches of anchor suspension (35; 135; 241; 335) are arranged so that said anchor (it) anchor (35 rigid (20 is movable substantially in rotation around an additional axis of rotation (Z2) parallel to said central axis (Z0).
    [15" id="c-fr-0015]
    15. Device according to any one of claims 12 to 14, wherein the anchor (11) comprises a main body (31; 331) rigid which comprises two stop members (36, 37; 336, 337) adapted for cooperate with the teeth (17) of the energy distribution member (10), the main body of the anchor being disposed internally with respect to the part (34; 334) in the form of an arc of a circle rigid portions and the anchor (11) further comprising a rigid drive arm (34; 334) secured to the main body and connected to the rigid arm of said rigid portion by said elastic drive branch (34; 334).
    [16" id="c-fr-0016]
    16. Device according to any one of the preceding claims, comprising movement limitation means (29, 30; 329, 330a) adapted to limit the movements of at least one rigid portion (20; 320) of the regulating member. compared to the support.
    [17" id="c-fr-0017]
    17. Device according to claim 16, in which said movement limitation means (29, 30; 329, 330a) limit an angular movement of said at least one rigid portion of the regulating member relative to the support, around the central axis.
    [18" id="c-fr-0018]
    18. Device according to claim 16 or claim 17, wherein said movement limiting means comprise a slot (29) formed in said at least one rigid portion (30) of the regulating member and extending angularly around the central axis (Z0), and a pin (30) which is integral with the support (15) and which is arranged in the slot (29).
    [19" id="c-fr-0019]
    19. Device according to claim 16 or claim 17, in which said movement limitation means comprise a rigid movement limitation arm (329) belonging to said at least one rigid portion (320) of the regulating member, and two complementary movement limitation members (330a) belonging to the support (315) and radially framing said movement limitation arm (329), said movement limitation arm (329) extending angularly relative to the central axis (Z0 ).
    [20" id="c-fr-0020]
    20. Device according to claim 19, in which the movement limitation arm (329) has a free end provided with a head (329b) widened in the radial direction, said head (329b) being wider than the spacing between the two complementary movement limitation members (330a) belonging to the support.
    [21" id="c-fr-0021]
    21. Device according to claim 20, in which the enlarged head (329b) is angularly mobile in a recess (330) in an arc centered on the central axis (Z0), which is formed in the support, said recess opening out from said support by a narrowed opening delimited by two flanges (330a) belonging to said support and forming said complementary movement limitation members.
    [22" id="c-fr-0022]
    22. Device according to any one of claims 1 to 10, in which the support (115) is arranged at least partially around the regulating member (118), each rigid portion (120) comprises a part (124) in the form of an arc of a circle centered on the central axis (Z0) and a rigid arm (127) extending from the part (124) in the form of an arc of a circle to an inner end (128) adjacent to the central axis, each elastic suspension link (122) comprising an elastic suspension branch (123) connecting the support (115) to the inner end (128) of the rigid arm and extending substantially radially with respect to the central axis (Z0), and each elastic coupling link (121) comprising at least one elastic coupling branch (121a) connecting the part (124) in the form of an arc of a circle of a rigid portion at the first end (128) of the rigid arm (127) of an adjacent rigid portion, said elastic coupling branch (121a) extending substantially radially t by
    5 relative to the central axis (ZO).
    [23" id="c-fr-0023]
    23. Watch movement (3) comprising a device (13) according to any one of the preceding claims and an energy distribution member (10) provided with teeth (17) and intended to be acted upon by a device for
    10 energy storage (8), said device (13) comprising an anchor (il) adapted to cooperate with the energy distribution member (10), said anchor (il) being controlled by said regulating member (18; 118; 218; 318) to regularly and alternately block and release
    The energy distribution member (10), so that said energy distribution member (10) moves step by step under the stress of the energy storage device (8) according to a repetitive movement cycle , and said anchor (11) being adapted to transfer mechanical energy
    20 to said regulating organ (18; 118; 218; 318) during this repetitive movement cycle.
    [24" id="c-fr-0024]
    24. Timepiece (1) comprising a timepiece movement (3) according to claim 23.
    1/10
    U U FIG. 1
    2/10
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    同族专利:
    公开号 | 公开日
    CN110692022B|2021-04-13|
    US20200073329A1|2020-03-05|
    EP3548973A1|2019-10-09|
    EP3548973B1|2021-01-27|
    JP2019536053A|2019-12-12|
    TW201830175A|2018-08-16|
    CN110692022A|2020-01-14|
    WO2018100122A1|2018-06-07|
    FR3059792B1|2019-05-24|
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    法律状态:
    2017-12-20| PLFP| Fee payment|Year of fee payment: 2 |
    2018-06-08| PLSC| Publication of the preliminary search report|Effective date: 20180608 |
    2018-11-29| PLFP| Fee payment|Year of fee payment: 3 |
    2019-12-13| PLFP| Fee payment|Year of fee payment: 4 |
    2020-12-21| PLFP| Fee payment|Year of fee payment: 5 |
    2021-11-30| PLFP| Fee payment|Year of fee payment: 6 |
    优先权:
    申请号 | 申请日 | 专利标题
    FR1661782A|FR3059792B1|2016-12-01|2016-12-01|DEVICE FOR WATCHMAKING PART, CLOCK MOVEMENT AND TIMEPIECE COMPRISING SUCH A DEVICE|
    FR1661782|2016-12-01|FR1661782A| FR3059792B1|2016-12-01|2016-12-01|DEVICE FOR WATCHMAKING PART, CLOCK MOVEMENT AND TIMEPIECE COMPRISING SUCH A DEVICE|
    JP2019529590A| JP2019536053A|2016-12-01|2017-11-30|Watch device, watch movement, and watch comprising such a device|
    US16/465,912| US20200073329A1|2016-12-01|2017-11-30|Device For Timepiece, Timepiece Movement And Timepiece Comprising Such A Device|
    EP17805224.7A| EP3548973B1|2016-12-01|2017-11-30|Device for timepiece, clockwork mechanism and timepiece comprising such a device.|
    PCT/EP2017/081087| WO2018100122A1|2016-12-01|2017-11-30|Device for a timepiece, timepiece movement and timepiece comprising such a device|
    CN201780083855.7A| CN110692022B|2016-12-01|2017-11-30|Device for a timepiece, timepiece movement and timepiece comprising such a device|
    TW106142126A| TW201830175A|2016-12-01|2017-12-01|Device for timepiece, timepiece movement and timepiece comprising such a device|
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