• 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 clockwork mechanism, comprising a first component, movable with respect to a second component, comprising means for applying a resisting force of variable intensity between a first surface (30) of said first component and a second surface (20) of said second component. Said first surface (30) comprises first magnetic zones, said second surface (20) comprises second magnetic zones, said first surface (30) and / or said second surface (20) generates magnetic fields of variable intensity along the interface between said first surface (30) and said second surface (20) over the entire mobility path of said first component relative to said second component, said fields acting to attract or repel said second surface (20) and or said first surface (30), and generate a resistive force when applying a force to said first component relative to said second component. The first and second components may be a middle part (3) and a rotating bezel (2) or two coaxial parts of a drum barrel ratchet.
    公开号:CH710128A2
    申请号:CH01409/14
    申请日:2014-09-18
    公开日:2016-03-31
    发明作者:Fabio Sciascia；Sylvain Maréchal；Benoît LÉGERET；Alain Zaugg
    申请人:Montres Breguet Sa；
    IPC主号:
    专利说明:

    Field of the invention
    The invention relates to a clockwork mechanism, comprising a first fixed or movable component, and movable relative to a second fixed or movable component, and comprising means for applying a resistant force of variable intensity between a first surface of said first component and a second surface of said second component.
    [0002] The invention also relates to a movement comprising such a mechanism.
    [0003] The invention also relates to a watch comprising such a mechanism, or such a movement.
    [0004] The invention relates to the field of watch mechanisms, more particularly for watches, comprising mechanical braking or friction mechanisms.
    Background of the invention
    [0005] The friction mechanisms used in watchmaking generally include springs.
    These mechanisms are difficult to produce repeatedly, they alter the overall performance of the timepiece by the friction they bring into play. They are subject to wear, and pollute the movements and mechanisms of watchmaking.
    [0007] Notched bezels currently used in watchmaking are based on a mechanical system which allows rotation, generally unidirectional, of these bezels, blocking their movement.
    [0008] The particular characteristics of a telescope are:the number of steps in a complete revolution,the maximum torque between two steps, which must be low enough to be able to turn the bezel but strong enough to hold the bezel in the event of accidental impacts,and the variation in torque around each equilibrium position.
    [0009] Mechanical contacts are difficult to control because they strongly depend on the surface conditions and the physical properties of the materials used.
    [0010] These properties themselves depend on the alloys used and on the heat treatments and ion implantation; the tolerances of each of the parameters make it difficult to achieve good reproducibility. In particular, the snap-fastening is generally achieved by springs, which are difficult to achieve uniformly.
    [0011] The main problems encountered with mechanical notching glasses are:the significant play which leaves one of the components very free compared to the other,the mechanical friction undergone by the system,significant wear of parts causing mechanical notching,as well as the inhomogeneity of the torque as a function of the angle traversed by the rotor.
    Summary of the invention
    [0012] The invention proposes to improve the operation of horological notches such as notched bezels, by making it perfectly reproducible.
    [0013] The principle of the invention is to replace, at least partially, conventional mechanical notching, subject to wear and not very reproducible, contactless notching with regular operating torque parameters.
    To this end, the invention relates to a clockwork mechanism, comprising a first fixed or movable component, and movable relative to a second fixed or movable component, and comprising means for applying a resisting force d 'variable intensity between a first surface of said first component and a second surface of said second component, characterized in that said first surface comprises first magnetic or ferromagnetic zones, or respectively electrified or electrostatically conductive, in that said second surface comprises second zones magnetic or ferromagnetic, or respectively electrified or electrostatically conductive, and in that said first surface or / and said second surface generates magnetic fields, respectively electrostatic, of varying intensity along the interface between said first surface and said second surface over the entire mobility stroke of said first component pa r with respect to said second component, said fields acting to attract or repel said second surface or / and said first surface, and generate a resistant force during the application of a force to said first component with respect to said second component.
    [0015] The invention also relates to a movement comprising such a mechanism.
    [0016] The invention also relates to a watch comprising such a mechanism, or such a movement.
    Brief description of the drawings
    [0017] Other characteristics and advantages of the invention will become apparent on reading the detailed description which follows, with reference to the accompanying drawings, where: FIG. 1 schematically shows, partially and in perspective, a first variant of the invention with the silhouettes of two moving bodies in relative movement with respect to each other, and comprising successions of magnetic poles, distributed over two sides parallel, ensuring a magnetic notching effect, only these poles being shown in the figure; fig. 2 is seen in truncated section, passing through the center of the magnetic poles and through the pivot axis of the mobiles of the assembly of FIG. 1; figs. 3 and 4 represent, analogously to FIGS. 1 and 2, a second variant of the invention, with another assembly where the magnetic poles are arranged in two coaxial cones; figs. 5 and 6 represent, analogously to FIGS. 1 and 2, a third variant of the invention, with another assembly where the magnetic poles are arranged in two coaxial cylinders; figs. 7 and 8 represent, analogously to FIGS. 5 and 6, a fourth variant of the invention, with another set where the magnetic poles of the inner cylinder are oriented at a non-zero angle with the locally tangent plane; fig. 9 illustrates a configuration according to FIG. 1, and where all the magnetic poles have magnetizations in correspondence of direction; fig. 10 illustrates a configuration according to FIG. 1, and where all the magnetic poles have alternating magnetizations; fig. 9a illustrates a configuration according to FIG. 1, and where all the magnetic poles have magnetizations in magnetic opposition in concordance of direction; fig. 10a illustrates a configuration according to FIG. 1, and where all the magnetic poles have magnetizations in magnetic opposition in alternating directions; figs. 11 to 13 illustrate applications of the invention to a watch case comprising a magnetic notch between the middle part and the bezel: of the plane type in FIG. 11, conical in fig. 12, cylindrical in fig. 13; fig. 14 shows a watch comprising such a boot; figs. 15 and 16 show, in plan and in partial section, a watch movement comprising a barrel with a two-part ratchet equipped with a magnetic notch according to the invention.
    Detailed description of the preferred embodiments
    [0018] The invention proposes to replace, at least partially, a conventional mechanical notching by friction, subject to wear and not very reproducible, a notching without contact with regular operating torque parameters.
    This contactless notching can be achieved by the application of magnetic or electrostatic fields, the invention is more particularly illustrated for the case of magnetic fields, in the form of a magnetic notching.
    [0020] The invention then uses a system of magnets or / and ferromagnetic tracks, respectively a system of electrets or / and electrostatically conductive tracks, in order to construct a magnetic, respectively electrostatic notching mechanism, exploiting the induced forces on a magnet immersed in a magnetic field, or respectively on an electret (or an electrified component) in an electrostatic field.
    [0021] In the remainder of the description, the term "force" denotes generically both a force and a torque.
    The invention relates to a clockwork mechanism 100, comprising a first fixed or movable component 300, which is movable relative to a second fixed or movable component 200, and comprising means for applying a resisting force d variable intensity between a first surface 30 of the first component 300 and a second surface 20 of the second component 300.
    [0023] According to the invention, the first surface 30 comprises first magnetic or ferromagnetic areas, or respectively electrified or electrostatically conductive, the second surface 20 comprises second magnetic or ferromagnetic areas, or respectively electrified or electrostatically conductive.
    And the first surface 30 or / and the second surface 20 generates magnetic fields, respectively electrostatic, of varying intensity along the interface between the first surface 30 and the second surface 20 over the entire stroke of mobility of the first component 300 relative to the second component 200, these fields acting to attract or repel the second surface 20 or / and the first surface 30, and generate a resistant force during the application of a force to the first component 300 with respect to the second component 200.
    [0025] More particularly, the first component 300 is mobile in rotation relative to the second component 200. The first surface 30 comprises, arranged on a first track of revolution, first magnetic or ferromagnetic zones, or respectively electrified or electrostatically conductive. The second surface 20 comprises, arranged on a second track of revolution, second magnetic or ferromagnetic zones, or respectively electrified or electrostatically conductive. And the first surface 30 or / and the second surface 20 generates magnetic fields, respectively electrostatic, of variable intensity along its periphery, acting to attract or repel the second surface 20 or / and the first surface 30, and generate a force. resistant during a relative rotational maneuver of the first component 300 with respect to the second component 200.
    More particularly, the first surface 30 comprises, regularly arranged on a first track of revolution according to a first pitch, first magnetic or ferromagnetic zones, or respectively electrified or electrostatically conductive, the second surface 20 comprises, regularly arranged on a second track of revolution according to a second pitch, second magnetic or ferromagnetic zones, or respectively electrified or electrostatically conductive, and the first surface 30 or / and the second surface 20 generates said magnetic fields, respectively electrostatic, of variable intensity along its periphery, acting to attract or repel the second surface 20 or / and the first surface 30, and generate a resistant force during a relative rotational maneuver of the first component 300 with respect to the second component 200, this resulting force being periodic with a resulting step depending on the value of the first step and d e the value of the second step.
    [0027] In the magnetic variant of the invention, the force induced on a magnet immersed in a magnetic field B is given by the following law:
    where M is the magnetization of the material and B is the external magnetic field (all quantities in (1) are vectors).
    [0028] The principle is to position magnets, or magnetic tracks on a fixed part (stator) and on a mobile part (rotor) in order to exploit their interactions and create notches.
    The theory governing the magnetic interactions is described by Maxwell's equations, and the unknowns which remain come from the magnetic materials used and from the difficulty in solving these equations analytically and numerically without approximations. Nevertheless, from a macroscopic point of view these inaccuracies are low enough to make magnetic systems reliable, and in any case of a much higher reliability than that of the spring systems of the prior art.
    [0030] Different configurations are conceivable.
    Several different, non-limiting embodiments have been selected; the main geometries are presented in fig. 1 to 6:in fig. 1 and 2 the magnets are placed horizontally on two parallel planes,in fig. 3 and 4 the magnets are placed obliquely on two coaxial cones,in fig. 5 and 6 the magnets are placed vertically on two coaxial cylinders.
    [0032] Figs. 1, 3 and 5 each show two series of magnets, face to face in the drawing, which are to be fixed, one on the mobile part 2 of the bezel (rotor) and the other on a fixed part 3 of the watch case (stator) such as a caseband.
    [0033] For each configuration, it is possible to orient the field of the magnets in several ways. In the horizontal configuration of FIG. 1, we can thus have:all the magnets in concordance, with their fields aligned in the same direction, or in attraction as visible in fig. 9, either in repulsion,or with the magnets alternately, by alternating the direction of the magnetizations (represented by arrows) for each pair of magnets, as shown in fig. 10.
    A first particular application of the invention relates to a watch case 1 with a notched rotating bezel: more particularly, and as illustrated by FIGS. 1 to 13 which represent non-limiting variants of the invention, the invention relates to a watch case 1 with a rotating bezel 2, comprising a middle part 3 on which the bezel 2 is mounted to pivot about an axis of revolution D. This middle part 3 comprises a first surface 30 of revolution around the axis D, which faces a second surface 20 of revolution around the axis D which the bezel 2 comprises.
    According to the invention, the first surface 30 comprises, regularly arranged on its periphery in a first step, first magnetic or ferromagnetic zones, or respectively electrified or electrostatically conductive, and the second surface 20 comprises, regularly arranged on its periphery in a second pitch, second magnetic or ferromagnetic zones, or respectively electrified or electrostatically conductive. The first surface 30 or / and the second surface 20 generates magnetic fields, respectively electrostatic, of variable intensity along its periphery, acting to attract or repel the second surface 20 or / and the first surface 30, and generate a resistive force. during a relative rotation maneuver of the bezel 2 with respect to the middle part 3. This resulting force is periodic, with a resulting step whose value already depends on the value of the first step and on the value of the second step.
    More particularly, the first surface 30 is included in an annular volume V around the axis of revolution D on either side of an average radius RMOY between a minimum radius RMIN and a maximum radius RMAX, and faces the second surface 20 which is also included in the same annular volume V, the tangents to the first surface 30 and to the second surface 20 having substantially the same inclination with respect to the axis of revolution D at the level of the radius mean RMOY in a plane passing through the axis of revolution D.
    [0037] In a preferred, but non-limiting, embodiment illustrated by FIGS. 1 to 10, and 12, the first surface 30 comprises, regularly arranged on its periphery in discrete positions according to the first pitch, first magnetic or ferromagnetic pole masses 5, or respectively electrified or electrostatically conductive, which are arranged to cooperate in attraction or / and in repulsion with second magnetic or ferromagnetic pole masses 4, or respectively electrified or electrostatically conductive, which the second surface 20 comprises, regularly arranged on its periphery in discrete positions according to the second pitch.
    More particularly, in a first variant, such as visible in FIGS. 1 and 2, the first pole masses 5 define the first surface 30 which is flat along a first plane P1, and the second pole masses 4 define the second surface 20 which is flat along a second plane P2 which is parallel to the first plane P1.
    [0039] In a second variant, as seen in FIGS. 3 and 4, the first pole masses 5 are all tangent to a first cone K1 around the axis D constituting the first surface 30, and the second pole masses 4 are all tangent to a second cone K2 around the axis D constituting the second surface 20, and the second cone K2 is substantially parallel to the first cone K1. More particularly, the second cone K2 is parallel to the first cone K1.
    [0040] In a third variant, as seen in FIGS. 5 and 6, the first pole masses 5 are all tangent to a first cylinder C1 around the axis D constituting the first surface 30, and the second pole masses 4 are all tangent to a second cylinder C2 around the axis D constituting the second surface 20.
    A fourth variant shown in FIGS. 7 and 8 derive from this third variant: the first pole masses 5 and the second pole masses 4 are distributed in two concentric cylinders C1 and C2, and the first pole masses 5 or / and the second pole masses 4 have flat surfaces 41, 51, facing the second pole masses 4 or / and first pole masses 5, and whose normals form a non-zero angle a with the radials R coming from the axis D. This fourth variant is well suited to an operating mode of the type unidirectional of the bezel, by generating resistive torques of different moment according to the relative direction of rotation of the bezel 2 and the caseband 3.
    [0042] In a particular implementation, as seen in FIG. 9, all the first pole masses 5 have a magnetization or an electrification of the same direction with respect to each other, or / and all the second pole masses 4 have a magnetization or an electrification of the same direction with respect to each other.
    [0043] The advantage of the horizontal configuration of FIG. 1 and the aligned magnets of FIG. 9 is that a force is generated on telescope 2 in the ice-ground direction that is strictly positive. This configuration therefore makes it possible, by placing the bezel 2 on the caseband 3, to resolve a backlash problem, either by keeping the rotor against the stator in the case of magnets in attraction, or, in the case of magnets in repulsion, by creating a magnetic pad having the effect of reducing torque irregularities by reducing contacts with certain components. In both cases, the magnetic system can complete a traditional mechanical notching system which supplies part of the missing torque. In a particular embodiment, the mechanical torque is equivalent to 50% of the total detent torque, and the magnetic torque provides the remaining 50% of the total torque.
    [0044] According to one variant, the sliding of the plated bezel is provided by a ball bearing, or the like.
    In a particular implementation, as shown in FIG. 10, all of the first pole masses 5 are even in number and have alternating direction magnetization or electrification, or / and all of the second pole masses 4 are even in number and have alternating direction magnetization or electrification.
    [0046] The horizontal configuration of FIG. 1 with alternating magnets according to fig. 10 this time makes it possible to maximize the maximum torque, as well as the variation in torque, this time having the consequence that the force in the ice-bottom direction changes sign at each half-step. However, this force also keeps the rotor on one side of the stator; the game is therefore caught up.
    [0047] In the vertical configuration of FIG. 5, the force on the ice-bottom axis is zero in nominal operation, there is no offset in the ice-bottom direction between the two circles of magnets. Again, the maximum torque is greater when the magnets are alternating according to fig. 10, that when they are in agreement according to FIG. 9. During operation with the rotor slightly offset from the stator (whether accidentally, or deliberately due to construction), a force is induced in the ice-bottom direction. This force always tends to bring the rotor back to nominal operation if the magnets are all aligned, while it changes direction if they alternate (sometimes tending to bring the rotor back to nominal operation, sometimes to press it against a face of the stator) .
    [0048] The number of magnets makes it possible to vary the number of steps of the bezel.
    [0049] It is also possible to create a particular sensation for the user by a particular ratio between the number of magnets on the stator and on the rotor, which may in particular be different from the unit. To create a touch sensation typical of a magnetic bezel, one of the two components has a smaller number of magnets than the other, resulting in a smaller magnetic torque (loss that can be compensated for by a mechanical system).
    If the available space is sufficient, an additional solution consists of combining several rows of systems as described above, in order to multiply the induced torque. This makes it possible, for example, to maintain the attractions of the system with attracting magnets (sliding on one side only with a horizontal configuration according to fig. 1, and return to nominal operation with a vertical configuration according to fig. 5), while benefiting a torque of a moment equivalent to that obtained with a row of alternating magnets.
    On the vertical configuration of FIG. 5, the surface of each magnet is perpendicular to the radius of the wheel.
    By changing this orientation, as visible in FIGS. 7 and 8, we create a bezel which is bidirectional, but whose torque moment when rotating depends on the direction of rotation. With a greater resistance torque in one direction than in the other, it is thus possible to achieve a magnetic notched bezel similar to a unidirectional bezel. This bezel has the advantage of not being damaged when a user forces its function in the wrong direction of rotation.
    One can, again, design hybrid solutions, using magnets both alternating and aligned (in attraction and in opposition).
    In order to protect the outside of the watch (wearer and sensitive devices) against the magnetic fields of such a system, and in order to increase the efficiency of the magnetic notched bezel, it is possible, and advantageous, introduce ferromagnetic shielding or use the caseband as such.
    In a particular implementation, the number of the first pole masses 5 is different from that of the second pole masses 4.
    Preferably, the magnetization or respectively the electrification of the first surface 30 and second surface 20 tends to bring the bezel 2 closer to a base: or else a base 6 which comprises the middle part 3 on the side opposite to the bezel 2 as shown in fig. 11, or else an added back 60 carried by the caseband 3 on the side opposite to the bezel 2, as can be seen in FIG. 12.
    In a particular embodiment of the invention, the second component 200 is movable in rotation around the first component 300 about an axis of revolution D, and comprises second guide means 210 which are arranged to cooperate with first complementary guide means 310 that the first component 3 comprises, in the vicinity of the first surface 30 and second surface 20 arranged on two surfaces of revolution coaxial with the axis D.
    [0058] Figs. 15 and 16 illustrate a second particular application of the invention, with such a mechanism 100, which constitutes a drum cylinder without a sliding flange. Indeed, the usual sliding flange is not necessary, because the first component 300 and the second component 200 constitute the two coaxial parts, respectively inner and outer, of a ratchet. The first component 300 carries a plurality of first pole masses 5 distributed over a first cylindrical surface C1 of axis D, and the second component 200 carries a plurality of second pole masses 4 distributed over a second cylindrical surface C2 of axis D. the invention thus constitutes magnetic notches, which generate a progressive retaining torque, up to a level guaranteeing the complete winding of the barrel.
    The first surface 30 of the first component 300 and the second surface 20 of the second component 200 are slightly offset in the axial direction by approximately half a thickness, forming an offset in Z. And the second guide means 210 and first complementary guide means 310 are shouldered. Thus the axial assembly of the first component 300 and the second component 200 is guaranteed, with sufficient return forces to ensure that the assembly is maintained under an acceleration of 5000 g. This construction thus eliminates the need for the usual sliding flange, saves space for the spring in the barrel drum, and therefore increases the energy that can be stored there for an equal external volume. The invention allows, again, the reduction of wear, and the reliability of the resistant torque, of magnetic origin, replacing the usual friction torque.
    [0060] Of course, the different embodiments shown for the magnetic notched bezel can be transposed to this second application, they are not redetailed, in order to lighten the presentation. Fig. 15 shows in particular the choice of the implementation with discrete pole masses, each oriented radially south-north, both for the first pole masses 5 of the first component 300 and for the second pole masses 4 of the second component 200.
    The invention also relates to a movement 500 comprising such a ratchet mechanism 100 in several parts.
    The invention also relates to a watch 1000 comprising such a mechanism 100, or such a watch case 1, or such a movement 500.
    [0063] The invention provides several advantages:construction of a notching system whose torque comes from magnetic forces, without mechanical contact;possibility of producing a variant with a magneto-mechanical system that takes up any play while smoothing the torque curve of a bezel;ease of modulation of the number of steps of a telescope by changing the number of magnets;touch different from the touch of a traditional glasses;more precise location of the notch;liberation from tribological constraints;realization of a unidirectional bezel protected in case of maneuver in the wrong direction;in the application to the replacement of sliding flange friction in a barrel, the gain in useful volume for the barrel spring, the less wear, and the control of the torque.
    权利要求:
    Claims (18)
    [1]
    1. Watch mechanism (100), comprising a first component (300) fixed or movable, and movable relative to a second component (200) fixed or movable, and comprising means for applying a resistant force of variable intensity between a first surface (30) of said first component (300) and a second surface (20) of said second component (300), characterized in that said first surface (30) comprises first magnetic or ferromagnetic zones, respectively electrified or electrostatically conductive, in that said second surface (20) has second magnetic or ferromagnetic zones, respectively electrified or electrostatically conductive, and in that said first surface (30) and / or said second surface (20) generates fields magnetic, respectively electrostatic, variable intensity along the interface between said first surface (30) and said second surface (20) over the entire mobility path of said first component (300) relative to said second component (200), said fields acting to attract or repel said second surface (20) and / or said first surface (30), and generating a resistive force when applying a force to said first component (300) with respect to said second component (200).
    [2]
    2. Mechanism (100) according to claim 1, characterized in that said first component (300) is rotatable relative to said second component (200), in that said first surface (30) comprises disposed on a first track of revolution, first magnetic or ferromagnetic zones, or respectively electrified or electrostatically conductive, in that said second surface (20) comprises, arranged on a second revolution track, second magnetic or ferromagnetic zones, respectively electrified or electrostatically conductive zones; , and in that said first surface (30) and / or said second surface (20) generates magnetic fields, respectively electrostatic, of variable intensity along its periphery, acting to attract or repel said second surface (20) or / and said first surface (30), and generating a load resistant during a relative rotation maneuver of said first component (300) with respect to said second component (200).
    [3]
    3. Mechanism (100) according to claim 2, characterized in that said first surface (30) comprises, regularly arranged on a first revolution track in a first step, first magnetic or ferromagnetic zones, respectively electrified or electrostatically conductive, in that said second surface (20) comprises, regularly arranged on a second revolution track in a second pitch, second magnetic or ferromagnetic zones, respectively electrified or electrostatically conductive, and in that said first surface (30) or and said second surface (20) generates said magnetic fields, respectively electrostatic, of varying intensity along its periphery, acting to attract or repel said second surface (20) and / or said first surface (30), and to generate a force resistant during relative rotation of said first component (300) with respect to said second component (200), said resulting force being periodic with a resulting pitch depending on the value of said first pitch and the value of said second pitch.
    [4]
    4. Mechanism (100) according to one of claims 1 to 3, characterized in that it constitutes a watch case (1) with rotating bezel (2) constituting said second component (200), and having a middle part (3). ) constituting said first component (300) on which is pivotally mounted said bezel (2) about an axis of revolution (D), said middle part (3) having said first surface (30) of revolution about said axis (D), and which faces said second surface (20) of revolution about said axis (D) that comprises said bezel (2), characterized in that said first surface (30) comprises, regularly arranged on its periphery in a first step first magnetic or ferromagnetic regions, respectively electrified or electrostatically conductive, in that said second surface (20) comprises, regularly arranged on its periphery in a second pitch, second magnetic zones or ferromagnetic, or respectively electrified or electrostatically conductive, and in that said first surface (30) and / or said second surface (20) generates magnetic fields, respectively electrostatic, of variable intensity along its periphery, acting to attract or pushing said second surface (20) or / and said first surface (30), and generating a resistive force during a relative rotation maneuver of said bezel (2) relative to said middle part (3), said resulting force being periodic with a resulting step depending on the value of said first step and the value of said second step.
    [5]
    5. Watch case (1) according to claim 4, characterized in that said first surface (30) is included in an annular volume (V) around said axis of revolution (D) on either side of a radius means (RMOY) between a minimum radius (RMIN) and a maximum radius (RMAX), and faces said second surface (20) which is also included in the same said annular volume (V), the tangents to said first surface ( 30) and said second surface (20) having substantially the same inclination with respect to said axis of revolution (D) at said mean radius (RMOY) in a plane passing through said axis of revolution (D).
    [6]
    6. Watch case (1) according to claim 4 or 5, characterized in that said first surface (30) comprises, regularly disposed on its periphery in discrete positions according to said first step, first polar masses (5) magnetic or ferromagnetic, or respectively electrified or electrostatically conductive, which are arranged to cooperate in attraction and / or in repulsion with second polar masses (4) magnetic or ferromagnetic, respectively electrified or electrostatically conductive that includes said second surface (20), regularly arranged on its periphery in discrete positions according to said second step.
    [7]
    7. Watch case (1) according to claim 6, characterized in that said first polar masses (5) define said first surface (30) which is plane in a first plane (P1), and in that said second polar masses (4) define said second surface (20) which is plane in a second plane (P2) which is parallel to said first plane (P1).
    [8]
    8. Watch case (1) according to claim 6, characterized in that said first polar masses (5) are all tangent to a first cylinder (C1) about said axis (D) constituting said first surface (30), and said second pole bodies (4) are all tangent to a second cylinder (C2) about said axis (D) constituting said second surface (20).
    [9]
    9. Watch case (1) according to claim 6, characterized in that said first polar masses (5) are all tangent to a first cone (K1) about said axis (D) constituting said first surface (30) n, and in that said second polar masses (4) are all tangent to a second cone (K2) about said axis (D) constituting said second surface (20), and said second cone (K2) being substantially parallel to said first cone (K1) .
    [10]
    10. Watch case (1) according to claim 9, characterized in that said second cone (K2) is parallel to said first cone (K1).
    [11]
    11. Watch case (1) according to claim 6, characterized in that said first polar masses (5) and / or said second polar masses (4) comprise plane surfaces (41; 51) facing said second polar masses ( 4) or / and first polar masses (5), and whose normals make an angle (a) nonzero with the radial (R) from said axis (D).
    [12]
    12. Watch case (1) according to one of claims 6 to 11, characterized in that all said first polar masses (5) have magnetization or electrification in the same direction relative to each other, and / or that all said second polar masses (4) have magnetization or electrification in the same direction relative to each other.
    [13]
    13. Watch case (1) according to one of claims 6 to 11, characterized in that all said first polar masses (5) are even in number and have alternating magnetization or electrification, or / and that all said second polar masses (4) are even in number and have alternating magnetization or electrification.
    [14]
    14. Watch case (1) according to one of claims 6 to 11, characterized in that the magnetization or respectively the electrification of said first surface (30) and second surface (20) tends to bring said bezel (2) closer together a bottom (6; 60) that comprises said middle (3) on the opposite side to said bezel (2) or that carries said middle (3) opposite to said bezel (2).
    [15]
    15. Mechanism (100) according to one of claims 1 to 3, characterized in that said second component (200) is rotatable about said first component (300) about an axis of revolution (D), and it comprises second guide means (210) arranged to cooperate with first complementary guiding means (310) that comprises said first component 3) and in the vicinity of said first surface (30) and second surface (20) disposed on two surfaces of revolution coaxial with said axis (D).
    [16]
    16. Mechanism (100) according to claim 15, characterized in that it constitutes a drum barrel devoid of sliding flange, and in that said first component (300) and said second component (200) constitute the two coaxial parts, respectively inner and outer, a ratchet, said first component (300) carrying a plurality of first polar masses (5) distributed over a first cylindrical surface (C1) of axis (D) and said second component (200). ) carrying a plurality of second polar masses (4) distributed over a second cylindrical surface (C2) of axis (D).
    [17]
    Movement (500) having a mechanism (100) according to claim 15 or 16.
    [18]
    18. Watch (1000) comprising a watch case (1) according to one of claims 4 to 14, and / or a movement (500) according to claim 17.
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    同族专利:
    公开号 | 公开日
    CH710128B1|2018-08-31|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    CH01409/14A|CH710128B1|2014-09-18|2014-09-18|Clock mechanism comprising a non-contact crimp between two components.|CH01409/14A| CH710128B1|2014-09-18|2014-09-18|Clock mechanism comprising a non-contact crimp between two components.|
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