• 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:
    Guide device (1) for a clock display (10) with a guide bearing (4) of the shaft (3) of the display (10) around an axis (D), comprising, of a first side of said axis (D), a bearing surface (5) comprising a vee or a bearing, symmetrical with respect to a bisecting plane (P1, P2) passing through the axis (D), to center the axis of the shaft (3) on this bisecting plane (P1, P2), and on a second opposite side, at least one retaining element (6) substantially diametrically opposed to the bearing surface (5), all the elements of support (6) exerting on this shaft (3) a resulting elastic return force directed towards the axis (D), and preventing any radial exit of this shaft (3) from the guide bearing (4).
    公开号:CH716957A2
    申请号:CH01631/19
    申请日:2019-12-17
    公开日:2021-06-30
    发明作者:Delevaux Fabrice；Villar Yvan；Christan Julien；Cattin Christophe；Philipps Anne
    申请人:Eta Sa Mft Horlogere Suisse；
    IPC主号:
    专利说明:

    Field of the invention
    The invention relates to a guide device for a clock display, comprising a housing arranged for the passage of a shaft of a display or arranged to carry a display, and comprising at least one guide bearing for guiding of a said tree around an axis.
    The invention also relates to a clockwork display mechanism, comprising at least one display comprising a shaft, and comprising at least one plate and / or a bridge carrying at least one such guide device, for carrying and guiding this tree.
    [0003] The invention also relates to a timepiece comprising at least one such clock display mechanism, and / or at least one such guide device.
    The invention relates to the field of clockwork display mechanisms.
    Background of the invention
    [0005] In a watch movement, the values of hours, minutes, and seconds are generally displayed using hands. These hands must not touch each other, nor touch the dial, or any components of the movement, or the crystal.
    Several factors influence the safety between the needles:the frolic of the tree carrying each needle;the inclination of the shaft, with respect to a plate or to a bridge, due to the location, the ovality, to the form defect of the guides;the inclination of the shaft due to the play in the guide pins;the chain of tolerances;the shape tolerances, and in particular the flatness and perpendicularity of the needle driven on the shaft.
    Of course, the problem is similar if the displays are not needles, but discs, rings, or the like.
    [0008] The problem of the needles touching each other is also linked to the fact that the interposed, that is to say the distance between the guide surfaces, of the shaft which supports the needle is relatively short. The lever arm effect considerably amplifies, at the needle end, any defect in one of the guides of the shaft. In this case, it turns out that the main contribution to the decrease in safety between the needles is the inclination due to the play in the pivots (more than 50%).
    We are particularly interested here in the variation of the inclination of the second hand in one revolution, comparable to a beat.
    To prevent the needles from bending over and touching, generally at least one foil spring is placed on the shaft which supports the needle. The friction torque generated by this foil is very difficult to control, and directly influences the amplitude of the balance, the chronometric performance, and the efficiency of the mechanism. Mechanisms are known comprising several leaf springs, the function of which is to provide both guidance and friction braking simultaneously. The equilibrium position of the shaft results from the rigidity of these spring elements, which are the blades which exert a restoring force when the shaft is out of its equilibrium position.
    The random orientation of such a shaft in the field of gravity, when the timepiece is a watch worn by its user, only makes it more difficult to maintain a shaft perpendicular to a plate or to A bridge.
    Summary of the invention
    The invention proposes to solve the problem of fluttering of a display, in particular of a display hand, and to prevent a display, such as a small second hand, or a power reserve indicator. , or other, to touch another display such as for example the hour hand, and / or to touch the dial or a fixed component of the movement or of the cover by a radial guide.
    The invention also proposes to limit as much as possible the variation of the inclination of the display in one revolution.
    To avoid any unpleasant optical phenomenon for the user, such as chattering or the like, the invention proposes to limit, or even eliminate, the flutter of the display due to games, and in particular to games of 'gear.
    For the control of the chronometric properties, it is, again, to control any loss of amplitude induced by the friction of a spring against a shaft.
    To this end, the invention relates to a guide device for a clock display according to claim 1.
    The invention also relates to a timepiece movement comprising at least one such guide device.
    The invention also relates to a timepiece, in particular a watch, comprising at least one such a timepiece movement, and / or at least one such guide device.
    Brief description of the drawings
    Other characteristics and advantages of the invention will become apparent on reading the detailed description which follows, with reference to the accompanying drawings, where:Figure 1 shows, schematically, and in perspective, the guidance of a shaft carrying a display, here a needle, guided by two guide bearings according to the invention, each comprising an elastic blade in contact with the shaft and imposing a very slight braking on it, as opposed to a double bearing surface, here constituted by a vee; these bearing surfaces each have a bisector plane passing through the theoretical axis of rotation of the shaft, and, advantageously, these two bisector planes are angularly offset from one another;FIG. 2 is a diagrammatic view and in plan view of one of the guide bearings of FIG. 1;FIG. 3 represents, in a manner similar to FIG. 2, another guide bearing of similar arrangement and comprising lugs on its periphery, for its locking in a cap or a structure;FIG. 4 represents, in a manner similar to FIG. 2, a guide bearing fixed to a structure by a pin between leather and flesh;Figures 5 to 7 very schematically illustrate, in a plane perpendicular to the axis of rotation of the shaft, three types of connection between the shaft and the bearing surface:FIG. 5: cylinder-plane connection;FIG. 6: cylinder-concave surfaces connection;FIG. 7: cylinder-convex surfaces connection;Figures 8 to 10 illustrate very schematically, in a plane perpendicular to the axis of rotation of the shaft, three types of connection between the shaft and the elastic blade:FIG. 8: cylinder-plane connection;FIG. 9: cylinder-convex surface connection;FIG. 10: cylinder-concave surface connection;FIG. 11 represents, in a manner similar to FIG. 2, another guide bearing of similar arrangement and comprising substantially cylindrical bearing surfaces on its periphery, as well as an external elastic blade, for its good retention in a cap or a structure;FIG. 12 is a partial diagrammatic view, in a sectional view passing through the axis of rotation of the shaft, of a guide device comprising such a single guide bearing;FIG. 13 represents, schematically, partially, and in sectional view passing through the axis of rotation of the shaft, a guide device comprising a guide bearing according to FIG. 3, mounted in a cap, and another classic bearing;Figure 14 is a view in another sectional plane of the guide device of Figure 13; 1FIGS. 15 to 20 very schematically illustrate, in sectional view in a plane passing through the axis of rotation of the shaft, different assembly variants of such guide devices or guide bearings;FIG. 21 is a block diagram showing a watch comprising a display mechanism with such a guide device.
    Detailed description of the preferred embodiments
    The invention relates to a guide device 1 for a clock display 10, such as a hand, a disc, or the like, comprising a shaft 3, or mounted on a shaft 3.
    This guide device 1 comprises a housing 2, which is arranged for the passage of a shaft 3 of a display 10, or which is arranged to directly carry a display 10. The guide device 1 comprises at least one guide bearing 4 for guiding such a shaft 3 around an axis D.
    According to the invention, this at least one guide bearing 4 comprises, on a first side of the axis D, a bearing surface 5, comprising a vee or a bearing, or the like, and which is arranged to center the axis of revolution of a shaft 3 on a bisecting plane P of the bearing surface 5. This bearing surface 5 is symmetrical with respect to the bisecting plane P, which passes through the axis D. The same Guide bearing 4 comprises, on a second side of axis D, opposite to the first side, at least one retaining element 6, which is arranged substantially diametrically opposite to the bearing surface 5. It is understood that the bearing surface 5, symmetrical with respect to its bisecting plane P, in fact comprises two elementary bearing surfaces, referenced 51 and 52 in certain figures.
    According to the invention, all the retaining elements 6 are arranged to exert on a shaft 3 a resulting elastic return force directed towards the axis D, and to prevent a radial exit, out of this at least one bearing of guide 4, of a shaft 3 inserted axially in the direction of axis D in this same guide bearing 4.
    The slight friction operated on the shaft by each holding element 6 provides braking to prevent chattering and fluttering of the display 10. Especially when the display 10 is of small diameter and small inertia, such as a small seconds display hand or power reserve, or the like, the diameter of the shaft is very small, and the alteration of the efficiency of the clockwork movement by this imposed friction is almost negligible. As this friction is constant, the chronometric properties are hardly affected.
    More particularly, each retaining element 6 is a leaf spring arranged to bear on the periphery of a shaft 3.
    More particularly, at least one guide bearing 4 comprises a single retaining element 6. The figures illustrate a particular, non-limiting case where each guide bearing 4 comprises a single retaining element.
    The contact surfaces between the shaft 3 and the guide bearing 4, both at the level of the bearing surface 5, that of a contact surface 60 which is opposite them, can take different forms, from a simple point contact up to very enveloping contact between complementary surfaces: point contact ensures less friction but generates wear and pollution of the movement; the enveloping contact corresponds to a high friction and a loss of efficiency of the mechanism. In the particular application to displays, a good compromise lies in a substantially linear contact: each contact surface develops around a line segment. The invention is illustrated in the figures for the particular case where these straight segments are all parallel to one another, and parallel to the theoretical axis D of rotation of the shaft 3; this solution is preferred because it generates little wear, low and controlled friction, and little adversely affects the performance.
    However, one can imagine contact surfaces that are substantially linear but not parallel, for example on generatrices of a cone, to tend to push the shaft in a certain direction for play adjustments for example, but with of course impaired performance.
    These contacts can be of the cylinder-plane type, as symbolized in Figures 5 and 8, but also of the male cylinder-female cylinder type as shown in Figures 6 and 10, or of the male cylinder-cylinder type male as visible in Figures 7 and 9, it is noted that the cylindrical configuration is only a particular case, advantageous to achieve, of a more generally concave or convex surface: it is thus possible to have plane tape connections. convex, concave-convex, convex-convex.
    [0030] Thus the preferred case illustrated, comprising three substantially linear contact surfaces, is a particular, non-limiting case which is the most advantageous for these display applications.
    More particularly, the guide device 1 comprises a plurality of guide bearings 4 separated axially in the direction of the axis D; this is the conventional arrangement with a lower bearing 41 and an upper bearing 42, as can be seen for example in FIG. 1. More particularly, at least two of these guide bearings have distinct bisector planes P, as can be seen in FIG. 1, where the bisecting plane P1 of the lower vee-shaped bearing surface 5 of the lower bearing 41 forms a non-zero or flat angle with the bisector plane P2 of the upper vee-shaped bearing surface 5 of the upper bearing 42.
    The guide device 1 may also include only such a single guide bearing 4, as can be seen in the examples of Figures 12 and 15.
    More particularly, at least one guide bearing 4 is removable, and comprises at least one outer surface 7, which is arranged to cooperate in a complementary manner with a housing 20, 201, 202, of a plate 101 or of a bridge 102, or any similar structural or support element, at least in a plane perpendicular to the axis D.
    The least expensive execution of such a housing 20, 201, 202, is a bore, Figure 4 illustrates this simple and non-limiting example of a circular housing 201, made after drilling an orifice for the housing of a pin 105, the bearing 4 comprises at the periphery the complementary part of this orifice, and a pin 105 housed between leather and flesh ensures the precise angular orientation of the guide bearing 4. Naturally, many other executions are possible , for example with an orientation flat on the periphery of the bearing 4, or the like, and their choice is guided by the sizing and the machining cost.
    More particularly, this at least one outer surface 7 comprises at least a first axial abutment surface 71, which is arranged to cooperate in axial abutment bearing, in the direction of the axis D, with a bearing surface complementary 1020,1021, which comprises a plate 101 or a bridge 102, or a cap 103 arranged to be mounted in a plate 101 or a bridge 102, or similar.
    More particularly, this at least one external surface 7 also comprises a second axial stop surface 72 arranged to cooperate in axial stop support, in the direction of the axis D, with a complementary support surface 1012, 1022 , that comprises a plate or a bridge, on the side opposite to that of the first axial stop surface 71. FIG. 9 illustrates such a configuration with a bearing made in two parts 42 and 43. In the case of a one-piece execution, the part 43 is advantageously a deformable elastic lip allowing the axial insertion of this bearing 4 in the housing 202 of the bridge 102, and its clipping on this bridge after release of this lip.
    More particularly, the guide bearing 4, carrying this at least one outer surface 7, comprises at least one elastic blade 9 for its elastic retention in a chamber 20, 201, 202, which comprises a plate 101 or a bridge 102 to receive this guide bearing 4, as visible in FIG. 18. And the first axial stop surface 71 is advantageously arranged to limit the axial deformation of at least one elastic blade 9 disposed in its immediate axial vicinity in the direction axis D, which protects it against shocks. Naturally, this elastic blade 9 can also be arranged to cooperate with the chamber 20, 201, 202 and a side surface 1011, 1012, 1021, 1022, of the plate or of the bridge. In yet another variant, the same bearing 4 comprises several such elastic blades 9, and in particular at least one to cooperate radially with the bore, and one to cooperate axially with a stop bearing surface perpendicular to the axis D. The guide bearing 4 of FIG. 11 comprises such an elastic blade 9, as well as substantially cylindrical bearing surfaces 701, 702, 703, on its periphery 7.
    More particularly, at least one elastic blade 9 is interposed axially between the first axial stop surface 71 and the second axial stop surface 72, as can be seen in FIG. 19.
    The type of embodiment of the guide bearing 4 according to the invention is variable depending on the desired assembly method.
    In a first variant, the guide bearing 4 comprises at least one rigid peripheral part comprising at least one such external surface 7.
    In a second variant, the guide bearing 4 comprises at least one elastic peripheral part comprising at least one such external surface 7.
    More particularly, at least one guide bearing 4 is in one piece, and comprises, on a single component, both the bearing surface 5 and all the retaining elements 6 of this bearing. More particularly still, when the guide bearing comprises one or more elastic blades 9, this guide bearing 4 is advantageously in one piece, and comprises, on a single component, both the bearing surface 5 and all the holding elements 6 and all elastic blades 9 of this bearing.
    More particularly, at least one guide bearing 4 is made of micromachinable material. It can in particular be produced in silicon and or silicon dioxide, in “diamond like carbon” DLC, or similar, by a process of the “LIGA” or “MEMS” type or similar.
    In another variant embodiment, at least one guide bearing 4 is made of an elastic metal alloy.
    [0045] In another variant embodiment, at least one guide bearing 4 is made of a plastic or composite material allowing the production of elastic blades in the temperature and hygrometry ranges customary for watches.
    More particularly, the outer surface 7 of the guide bearing 4 comprises at least one protruding or re-entrant relief 75, which is arranged to cooperate in a complementary manner with an indexing element that comprises a plate or a bridge for an angular orientation. single guide bearing 4 carrying this at least one outer surface 7 relative to the indexing element. This variant is illustrated by FIG. 3, where the guide bearing 4 comprises three lugs 75 distributed at 120 °. A particular method of mounting such a guide bearing is as follows:a pre-assembly of the brake guide bearing 4 is carried out in a head cap or a cap;this cap or cabochon is mounted in a blank, with a clamping; the tightening induced by the tightening of the plug in tightens the brake guide bearing 4 in the plug housing. The peripheral lugs make it possible not to over-stress the brake in its housing, which could cause the breakage of a retaining element 6. These lugs penetrate into the stopper, and the brake guide bearing 4 is finally crimped through the lugs. The advantage of this solution is to be able to dismantle the brake guide bearing 4 by removing the plug from the blank. In fact, it is possible, but more difficult, to effect the edge or the driving-in of the brake guide bearing 4 directly in the blank. The use of an intermediate cap or cap makes it possible to deport this hunting / setting operation of the brake in the cap. In the event of a flushing / shoring operation fault, the component to be discarded is only the brake contained in the plug and not the complete blank which is more expensive. Figures 13 and 14 illustrate such an assembly with an intermediate cap 103.
    Figures 2 to 4 illustrate guide bearings 4 according to the invention, which have one or more holes 49, for identification purposes, the very small dimensions of these bearings not allowing any other type of identification marking.
    The invention also relates to a clockwork display mechanism 100, comprising at least one display 10 comprising a shaft 3, and comprising at least one plate 101 and / or a bridge 102 carrying at least one such guide device 1, to support and guide this shaft 3. The plate 101 and / or the bridge 102 comprises at least one chamber 201, 202, which is arranged to receive such a guide bearing 4 of the guide device 1 for guiding the shaft 3 in the direction of axis D.
    More particularly, this mechanism 100 comprises a plate 101 and a bridge 102 axially distant in the direction of the axis D.
    In a first variant, this mechanism 100 comprises at least one guide bearing 4 forming with the plate 101 or the bridge 102 a non-removable assembly. The bearing 4 is in particular driven out and / or glued and / or welded, in particular by laser welding, and / or brazed, and / or riveted, to the plate 101 or to the bridge 102, or the like.
    In a second variant, the mechanism 100 comprises at least one guide bearing 4 removable relative to the plate 101 or to the bridge 102. In a variant, the guide bearing 4 comprises for this purpose at least one elastic element, in particular an elastic blade 9; in another variant, it is the plate 101 or the bridge 102 which comprises such an elastic element; in yet another variant, both the guide bearing and the plate 101, or the bridge 102, each comprise at least one such elastic element.
    The invention also relates to a timepiece 1000 comprising at least one such clock display mechanism 100, and / or at least one such guide device 1. More particularly, this timepiece 1000 is a watch.
    In short, the invention makes it possible to rigidly position a bearing surface 5, for example a vee, in the watch movement, in particular at the level of a plate or a bridge, or other element of structure, so that the position of the mobile shaft is imposed by the position of this bearing surface 5, and provides radial guidance.
    The guide bearing 4, which comprises this bearing surface 5, can be fixed in different ways, and in particular and not limited to:by non-removable fixing, or at least very difficult to remove, for example by driving, shoring, or the like, or even stopping by laser welding points, brazing, or the like. A particular embodiment is that of a circular brake fixed in the blank, for example by shore: cap-head or cap 103, brake. This brake has a circular circumference. It is riveted to the blank on its periphery, and thus each shaft positioning vee is integral with the clockwork movement. The play takes place between the head cap or cabochon 103 of the plate and the brake fixed in a bridge, for example a calendar board. This configuration also makes it possible to maintain the shaft when the display is released, in particular a needle.by reversible elastic fixing, similar to a circlip. This variant makes it possible to avoid a possible deformation of a guide bearing fixed irreversibly by deformation or by any non-removable fixing The use of at least one elastic blade in the manner of a circlip makes it possible to ensure the autonomous maintenance d, in the blank, of the guide bearing 4 with a brake function. It is thus possible to ensure the functions of holding in the blank, of radial and axial guidance, and of brake.
    The figures only illustrate a few particular configurations, and are not limiting.
    In particular, a guide bearing according to the invention with a brake function can be mounted on the dial side, instead of being conventionally mounted in a sandwich between the blanks; the fray is then made between a cap-head, or a cabochon 103, and the neighboring blank, as visible in figure 15.
    The invention provides several advantages:control of the braking torque by friction, in particular when the guide bearing 54 is produced by a very reproducible “LIGA” process;the friction torque then only depends on the variation in the diameter of the pinion fixed to the display shaft, which improves the display float, in particular a needle, visible to the user from a show ;maintaining the display, in particular a “flat” needle, that is to say parallel to the plates and bridges, preventing it from coming into contact with another display, another needle or with the dial or a structural element of the watch;the alternative with elastic blade of circlip type is removable.
    These miniature components are easily integrated into a minimal footprint and can be installed as much in the power reserve positions, small seconds with variable intershafts, or other
    权利要求:
    Claims (20)
    [1]
    1. Guide device (1) for a clock display (10), comprising a housing (2) arranged for the passage of a shaft (3) of a display (10) or arranged to carry a display (10) , and comprising at least one guide bearing (4) for guiding said shaft (3) around an axis (D), characterized in that said at least one guide bearing (4) comprises, a first side of said axis (D), a bearing surface (5) comprising a vee or a bearing and arranged to center the axis of revolution of said shaft (3) on a bisecting plane (P) of said surface support (5) which is symmetrical with respect to said bisecting plane (P) which passes through said axis (D), and on a second side of said axis (D), opposite to said first side, at least one retaining element ( 6) arranged substantially diametrically opposite to said bearing surface (5), and characterized in that all of said retaining elements (6) are arranged to exert on said shaft (3) a resultant elastic return force. t directed towards said axis (D), and to prevent a radial exit, out of said at least one guide bearing (4), of a shaft (3) inserted axially in the direction of said axis (D) in this same bearing of guide (4).
    [2]
    2. Guide device (1) according to claim 1, characterized in that each said holding element (6) is a leaf spring arranged to bear on the periphery of a said shaft (3).
    [3]
    3. Guide device (1) according to claim 1 or 2, characterized in that at least one said guide bearing (4) comprises a single said holding member (6).
    [4]
    4. Guide device (1) according to one of claims 1 to 3, characterized in that said guide device (1) comprises a plurality of said guide bearings (4) separated axially in the direction of said axis (D) and of which at least two have so-called distinct bisector planes (P).
    [5]
    5. Guide device (1) according to one of claims 1 to 4, characterized in that at least one said guide bearing (4) is removable and comprises at least one outer surface (7) arranged to cooperate in a complementary manner. with a chamber (201, 202) that comprises a plate (101) or a bridge (102), at least in a plane perpendicular to said axis (D).
    [6]
    6. Guide device (1) according to claim 5, characterized in that said at least one outer surface (7) comprises at least one protruding or re-entrant relief (75) arranged to cooperate in a complementary manner with an indexing element that comprises a plate or a bridge for a single angular orientation of said guide bearing (4) carrying said at least one external surface (7) with respect to said indexing element.
    [7]
    7. Guide device (1) according to claim 5 or 6, characterized in that said at least one outer surface (7) comprises at least one first axial stop surface (71) arranged to cooperate in axial stop support, according to the direction of said axis (D), with a bearing surface (1020, 1021) that comprises a plate (101) or a bridge (102) or a cap (103) arranged to be mounted in a plate (101) or a bridge (102).
    [8]
    8. Guide device (1) according to claim 7, characterized in that said at least one outer surface (7) further comprises a second axial stop surface (72) arranged to cooperate in axial stop bearing, in the direction of said axis (D), with a bearing surface formed by a plate or a bridge, on the side opposite that of said first axial stop surface (71).
    [9]
    9. Guide device (1) according to claim 7 or 8, characterized in that said guide bearing (4) carrying said at least one outer surface (7) comprises at least one elastic blade (9) for its elastic retention. in a chamber that includes a plate or a bridge to receive a said guide bearing (4), and in that said first axial stop surface (71) is arranged to limit the axial deformation of at least one said elastic blade ( 9) disposed in its immediate axial vicinity in the direction of said axis (D).
    [10]
    10. Guide device (1) according to claims 8 and 9, characterized in that at least one elastic blade (9) is interposed axially between said first axial stop surface (71) and said second axial stop surface (72). ).
    [11]
    11. Guide device (1) according to one of claims 5 to 10, characterized in that said guide bearing (4) comprises at least one rigid peripheral part comprising at least one said outer surface (7).
    [12]
    12. Guide device (1) according to one of claims 5 to 11, characterized in that said guide bearing (4) comprises at least one elastic peripheral part comprising at least one said outer surface (7).
    [13]
    13. Guide device (1) according to one of claims 1 to 12, characterized in that at least one said guide bearing (4) is in one piece, and comprises on the same component both its said bearing surface (5) and all of its said retaining elements (6).
    [14]
    14. Guide device (1) according to claim 13, characterized in that at least one said guide bearing (4) is made of micromachinable material.
    [15]
    15. Clockwork display mechanism (100), comprising at least one display (10) comprising a shaft (3), and comprising at least one plate (101) and / or a bridge (102) carrying at least one device. guide (1) according to one of claims 1 to 14, for supporting and guiding a said shaft (3), said plate (101) and / or said bridge (102) comprising at least one chamber (201; 202) arranged to receive a said guide bearing (4) of said guide device (1) for guiding said shaft (3) in the direction of said axis (D).
    [16]
    16. Clockwork display mechanism (100) according to claim 15, characterized in that said mechanism (100) comprises a said plate (101) and a said bridge (102) axially distant in the direction of said axis (D). .
    [17]
    17. Clockwork display mechanism (100) according to claim 15 or 16, characterized in that said mechanism (100) comprises at least one said guide bearing (4) forming with said plate (101) or said bridge ( 102) a unit that cannot be dismantled.
    [18]
    18. Clockwork display mechanism (100) according to claim 15 or 16, characterized in that said mechanism (100) comprises at least one said guide bearing (4) removable relative to said plate (101) or to the said bridge (102).
    [19]
    19. Timepiece (1000) comprising at least one clockwork display mechanism (100) according to one of claims 15 to 17, and / or at least one guide device (1) according to one of claims 1 to 14.
    [20]
    20. Timepiece (1000) according to claim 19, characterized in that it is a watch.
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    同族专利:
    公开号 | 公开日
    WO2021121707A1|2021-06-24|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    CH358383A|1956-10-08|1961-11-15|Junghans Geb Ag|Holding device|
    JPS54139758A|1978-04-21|1979-10-30|Citizen Watch Co Ltd|Fixing method of bearing stones for watches|
    CH707813A2|2013-03-19|2014-09-30|Nivarox Sa|Structure clockwork mobile pivot.|
    CH709920A2|2014-07-24|2016-01-29|Eta Sa Manufacture Horlogère Suisse|Set of mobile watch braking.|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    EP19216640|2019-12-16|
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