• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
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    • 专利摘要:
    The invention relates to a roller clock display mechanism (100) comprising at least one roller (10) pivoting about a roller axis and at least one structure (101) carrying at least one drum and / or at least one flap (20). At least one first roller (10) has a plurality of ferromagnetic elements (71) or magnets (70) each arranged to cooperate in attraction with at least one magnet (70) or ferromagnetic element (71), respectively comprises said structure (101) or a second roller (10) adjacent to said first roller and having said display mechanism (100), for aligning said first roller with a reference of said structure (101) or respectively with said second roller.
    公开号:CH713873A2
    申请号:CH00385/18
    申请日:2018-03-22
    公开日:2018-12-14
    发明作者:Zaugg Alain
    申请人:Montres Breguet Sa；
    IPC主号:
    专利说明:

    Description
    FIELD OF THE INVENTION The invention relates to a clockwork clock display mechanism with rollers, comprising at least one roller pivoting about a roller axis, said mechanism comprising at least one structure carrying at least one drum and / or at least one flap.
    The invention also relates to a watch comprising at least one such display mechanism.
    The invention relates to the field of clockwork display mechanisms, in particular for watches, and more particularly calendar display mechanisms.
    BACKGROUND OF THE INVENTION The readability of displays is a major concern in watchmaking, especially for calendar type displays, which are difficult to produce in formats easily visible and decipherable by the user.
    Watch displays are rarely produced by rollers because the indications in this form are greedy in thickness, because of the diameter of the roller, comprising for example up to 31 indications for the days of the month, or 52 indications for the weeks of year, and incompatible with the particular geometry of a watch.
    And the possible use of very small characters requires the use of magnifying glasses in the thickness of the watch crystal, which greatly affect the aesthetics of the watch, while remaining difficult to read.
    Displays with a flap or pallet, of the static type, for clocks and other clocks, are not very transposable to watches, since they generally use gravity. They are more fragile and cannot withstand shocks.
    Document US 3,964,428 in the name of ARAI KIYOYUKI describes an indicator with two-sided rotary shutters, on the periphery of a rotary drum, with means for guiding the shutters kept tangentially oriented. When the drum is rotated, a mechanism allows the flaps to overturn around their own axis.
    Summary of the invention [0009] The invention proposes to develop a roller display, with watchmaking indications legible despite the limited diameter of the rollers.
    To this end, the invention relates to a clockwork display mechanism according to claim 1.
    The invention also relates to a watch comprising at least one such display mechanism.
    Brief description of the drawings [0012] Other characteristics and advantages of the invention will appear on reading the detailed description which follows, with reference to the accompanying drawings, where:
    fig. 1 shows, schematically, and in front view, a watch comprising a roller display mechanism according to the invention, of calendar type;
    fig. 2 shows, similarly to FIG. 1, a date display on a tens roll and a roll of flap units according to the invention;
    fig. 3 shows, similarly to FIG. 1, the driving train of the tens roller of FIG.
    2;
    fig. 4 shows, similarly to FIG. 1, the drive train of the roller of the units of FIG. 2;
    fig. 5 shows, schematically, and in end view in a plane perpendicular to the axis of rotation of the roll, the roll of the units of FIG. 2, with broken lines, the pivot kinematics of one of the flaps of this roller;
    fig. 6 shows, similarly to FIG. 1, a detail of the roll of the units in FIG. 5;
    fig. 7 shows, similarly to FIG. 5, a variant of the roll of the units in FIG. 2, showing the means for driving and holding the flaps, with a broken line the pivot kinematics of one of the flaps of this roller;
    fig. 8 shows, similarly to FIG. 1, a detail of the roll of the units in FIG. 7;
    fig. 9 shows, schematically, and in perspective, the roll of the units of FIG. 7;
    CH 713 873 A2
    fig. 10 and 11 show, diagrammatically, respectively in section and in end view, in a plane perpendicular to the axis of rotation of the roller, the roller of the units of FIG. 7, in an intermediate position, with, also visible in FIG. 9, the representation of a spring arranged to exert a force on jumps placed near shutter cams for indexing in position these cams and the corresponding shutters; fig. 12 to 14 show, similarly to FIGS. 9 to 11, a roll of months; fig. 15 represents, similarly to FIGS. 3 and 4, the rotation of a roller of the five-flap units; fig. 16 represents, similarly to FIG. 15, the rotation control of a particular roller with seven indications, corresponding to the days of the week; fig. 17 represents, similarly to FIG. 7, another variant of the roll of the units of FIG. 2, showing the means for driving and magnetically holding the flaps, with a broken line the pivot kinematics of one of the flaps of this roller; fig. 18 represents, similarly to FIG. 8, a detail of the roll of the units in FIG. 17; fig. 19 and 20 illustrate another variant, which, instead of the Maltese cross systems described above, partial teeth; fig. 21 represents, similarly to FIG. 5, a variant with which the indexing of the shutter cams is carried out by a single spring also serving as a jumper; fig. 22 to 26 represent, schematically, a variant for displaying leap years: fig. 22 in perspective, mounting a triple needle at 120 °, in line with the axis of the month roller; fig. 23 , in section perpendicular to this axis, shows a star, held by a jumper, which drives this triple needle; fig. 24 and 25 show, similarly to FIG. 23, but without representation of the jumper, the cooperation of the star, for its training, by an eccentric lever secured to a flap; fig. 26 is an end view, from the side of the triple needle; fig. 27 represents, similarly to FIG. 7, another variant for holding the shutters without a jumper, and with drive by partial toothing, with guidance by an external circumference in contact with the shutter itself; fig. 28 represents, similarly to FIG. 18, a variant with alignment of the tens roll on the roll of the units by means of magnets; fig. 29 represents, similarly to FIG. 18, a variant with a single roller whose volts are aligned in position with magnets that has a fixed structure of the display mechanism; fig. 30 and 31 are sections, respectively in planes C-C and B-B of fig. 29; fig. 32 is a perspective view of the mechanism of FIGS. 29 to 31, and one of its components.
    Detailed description of the preferred embodiments The invention is illustrated in the figures, without limitation, with rolls of the days of the week, of the calendar (a roll of tens and a roll of units), and of months .
    [0014] FIG. 1 illustrates for example, without limitation, a watch comprising rollers, with a height of characters greater than 2.20mm, on a roller with a diameter of 5.00 mm.
    Thus, the invention relates to a clockwork display mechanism 100 comprising at least one roller 10. This roller takes on the figures differentiated references: 10, 11, 12, 13, 14, and pivots around a roller axis D10. More particularly, this roller 10,11,12,13,14 comprises at least one flap 20, which is pivotally mounted about a flap axis D20 parallel to the roller axis D10 and distinct from the roller axis D10 . This at least one flap 20 has at least a first face 201 and at least a second face 202, arranged so that the user can view only one of these faces at a given time. Alternatively, a roller may also carry a drum or the like.
    CH 713 873 A2 [0016] The display mechanism 100 comprises first drive means 31 for pivoting the roller 10, 11, 12, 13, 14, around the roller axis D10.
    This display mechanism 100 comprises second drive means 32, distinct from the first drive means 31, for pivoting at least one such flap 20 around its flap axis D20, in at least one determined position of the shutter axis D20 relative to the roller axis D10.
    More particularly, in this display mechanism 100, a constant rotation of the flaps 20 as a function of the rollers 10, 11, 12, 13, 14, is calculated so that, in the display position visible to the user , the indication of the flap 20 is rotated 180 ° per turn of the roller 10, 11, 12, 13, 14.
    More particularly, the second drive means 32 are arranged to pivot a single flap 20 at a time, independently of the other flaps 20 that a roller 10, 11, 12, 13, 14 has.
    In another variant, the second drive means 32 are arranged to rotate synchronously each flap 20 that comprises a roller 10, 11, 12, 13, 14. This saves the energy required for display mechanism.
    In the preferred variant, because less space consuming, where the second drive means 32 are arranged to rotate a single flap 20 at a time, more particularly, the second drive means 32 are arranged to make pivot the single flap 20 to a single determined position of the flap axis D20 relative to the roller axis D10.
    The second drive means 32 more particularly comprise, at each flap 20, at least one flap drive pinion 35 centered on the flap axis D20. This shutter drive pinion 35 is more particularly arranged to cooperate with a control means, which includes the display mechanism 100, to modify in sequence or continuously the position of the successive shutters 20 of the same roller 10, 11 , 12, 13, 14, or to modify on demand the position of a specific flap 20. It is thus possible to modify the position of a specific shutter on demand.
    In particular, a motorization of the second drive means 32, or control by a watch rod, or a pusher, a targette, or the like, facilitates the updating of a calendar after a prolonged shutdown of a watch.
    More particularly, each flap 20 comprises, for its maintenance in the orientation position, a flap cam 25, in particular a heart-cam, comprising as many low points 26 as the flap 20 has faces 201, 202. And the roller 10, 11, 12, 13, 14, preferably comprises at least one spring 15 which is arranged to exert a force on a jumper 17 disposed near each flap cam for indexing in position of this flap cam 25, as shown in figs. 9 and 11.
    In a particular variant, as visible in FIG. 21, the couple formed by this jumper and this spring is advantageously replaced by at least one spring 15 of special shape, in particular a single spring as illustrated, combining the two functions of spring and jumper, and which replaces all the jumper 17 of the variant of fig. 9 and 11.
    In a variant of similar functionality, more particularly, each flap 20 comprises, for its maintenance in the orientation position, a flap cam 25 or a core cam having as many low points 26 as the flap 20 has faces 201.202, and the roller 10, 11, 12, 13, 14 comprises, for each flap cam 25 or heart cam, at least one magnet 70 arranged to exert a force on the flap cam 25 or heart cam made of magnetic material for indexing the flap cam 25 or core cam in position, as shown in fig. 17 or 18.
    [0027] FIG. 27 illustrates a variant in which the shutter 20 is held in position by a hoop 600, located opposite a cradle 601, and limiting the freedom of rotation of the shutter 20 outside the zone provided for this purpose.
    The invention relates more particularly to such a display mechanism 100 for clockwork with a roller, comprising at least one roller 10, 11, 12, 13, 14, pivoting around a roller axis D10. The mechanism 100 comprises at least one structure 101 carrying at least one drum and / or at least one flap 20.
    According to the invention, at least a first roller 10, 11, 12, 13, 14 comprises a plurality of ferromagnetic elements 71, or of magnets 70 respectively, each arranged to cooperate in attraction with at least one magnet 70 , or respectively a ferromagnetic element 71, which comprises the structure 101 or a second roller 10, 11, 12, 13, 14, adjacent to the first roller, and which comprises the display mechanism 100, for the alignment of the first roller with a reference of the structure 101 or respectively with the second roller.
    Naturally the cooperation in attraction can be done as well between a magnet 70 and a ferromagnetic element 71, or between two magnets 70 of suitable polarities.
    More particularly, at least one roller 10, 11, 12, 13, 14, has a structure 101.
    More particularly, the mechanism 100 includes at least two adjacent rollers 10, 11, 12, 13, 14 which each have a structure 101, and each structure 101 of which comprises a plurality of ferromagnetic elements
    CH 713 873 A2 or magnets 70, each arranged to cooperate in attraction with at least one magnet 70 or respectively a ferromagnetic element 71 that comprises the adjacent structure 101.
    More particularly, the structure 101 comprises a plurality of magnets 70 or respectively of ferromagnetic elements 71 for indexing in position of pivoting flaps 20 that comprises the first roller or a second roller, each flap 20 comprising at least one ferromagnetic element 71 or a magnet 70 respectively.
    More particularly, the first roller comprises a plurality of pivoting flaps 20.
    More particularly, the first roller comprises a plurality of ferromagnetic elements / 71 and / or magnets 70, for indexing the position of the pivoting flaps 20 that the first roller comprises.
    More particularly, each flap 20 of the first roller comprises, for its maintenance in the orientation position, a flap cam 25 or a heart-cam having as many low points 26 as the flap 20 has faces 201, 202, and the first roller comprises, for each flap cam 25 or core cam, at least one ferromagnetic element 71 or a magnet 70 which is magnetic and arranged to exert a force on the flap cam 25 or core cam of magnetic material or ferromagnetic for indexing in position of the shutter cam 25 or core cam.
    More particularly, the display mechanism 100 comprises at least one second roller which comprises a plurality of pivoting flaps 20.
    More particularly, the second roller comprises a plurality of ferromagnetic elements 71 and / or magnets 70, for indexing the position of the pivoting flaps 20 that the second roller comprises.
    More particularly, each flap 20 of the second roller comprises, for its maintenance in the orientation position, a flap cam 25 or a heart-cam comprising as many low points 26 as the flap 20 has faces 201, 202, and the second roller comprises, for each flap cam 25 or core cam, at least one ferromagnetic element 71 or a magnet 70 arranged to exert a force on the flap cam 25 or core cam made of magnetic or ferromagnetic material for the indexing in position of the shutter cam 25 or core cam.
    More particularly, each flap 20 is arranged to pivot about a flap axis D20 parallel to the roller axis D10 and separate from the roller axis D10, the at least one flap 20 having at least one first face 201 and at least a second face 202, the display mechanism 100 comprising first drive means 31 for pivoting at least one roller 10, 11, 12, 13, 14, around the roller axis D10, the mechanism display 100 comprising second drive means 32 distinct from the first drive means 31 for pivoting at least one flap 20 about its flap axis D20, in at least one determined position of the flap axis D20 by relative to the roller axis D10, and where the second drive means 32 comprise, at each flap 20 of the same roller 10, 11, 12, 13, 14, at least one flap drive means 35 arranged to rotate the flap 20 around the axis of shutter D20 and arranged to cooperate with a control means that includes the display mechanism 100 to modify in sequence or continuously the position of successive shutters 20 of the same roller 10, 11, 12, 13, 14, or for modify the position of a specific flap 20 on request.
    [0041] FIG. 28 illustrates a variant with alignment of the roll 10 of the tens on the roll 10 of the units by means of magnets 70. The presence of the magnets 70 for guiding the unit flaps makes it possible to align the roll of the tens, in particular with four pins ferromagnetic 71, or magnets, thereon. More particularly, the spacer of the structure 101 of the roller, which carries the indexing magnets 70 in position of each flap cam, is located between the mobile of the units and that of the tens. It is also possible to align the roll of the units with one or more pins or magnet in relation to the plate.
    Figs. 29 to 32 thus illustrate another variant, in which the precise angular positioning of the flaps 20 is carried out by the matching of pins 71, which the flaps 20 comprise, with magnets 70 carried by a structure 101 of the corresponding roller 10. The reverse configuration of magnets on the shutters and pins on the fixed structure is naturally possible. This configuration allows easy mounting of the flaps 20 in the structure 101, their pivot shafts are immobilized axially by a flange 102 fixed by screws to the structure 101, the other end of which forms a flange 18 has bearings, in the vicinity of drive pinions 409 for operating the flaps 20.
    More particularly, the first drive means 31 comprise, as visible in FIGS. 3 and 4, a control wheel 3120, 3130 from which certain teeth are removed, and which meshes with a roller drive pinion 312, 313, either directly or via a reduction torque 3131, to obtain the desired reduction. This allows in particular the display of the date.
    More particularly, at least one roller 10, 11, 12, 13, 14, comprises at least one fixed display position and at least one mobile display position by a flap 20 comprising a plurality of faces 201,202, such as visible in fig. 16. This makes it possible to produce a roller display with all kinds of indications in a reduced volume.
    More particularly, the first drive means 31 comprise an input train 61 which drives a main wheel 60, one revolution of which corresponds to the display time period of the roller 10, 11, 12, 13, 14, and which carries a main cam 50 carrying peripheral sectors 51 separated by recesses 52, the peripheral sectors 51 being of unequal amplitude, the shortest corresponding to the fixed display positions, and the longest corresponding to the mobile display positions. The main cam 50 cooperates with a secondary cam
    CH 713 873 A2 in eccentric Maltese cross and arranged to pivot during the passage of a recess 52. The secondary cam 40 carries a secondary wheel 42 meshing with a roller drive wheel 62. The main wheel 60 still carries a wheel main shutter drive 63, which itself meshes with a shutter pinion 64 which is arranged to control a shutter drive pinion 35 centered on the shutter axis D20 or itself constituting such a sprocket flap drive 35.
    The invention also relates to a watch 1000 comprising at least one such display mechanism 100.
    The figures illustrate particular embodiments of the invention.
    [0048] FIG. 2 illustrates a date display on a roll. As 31 days cannot be displayed on the circumference of a 5mm diameter roll, or similar, the units and the tens are distributed over two rolls: four digits on a tens roll 12, ten digits on a roll units 13 .
    The drive of the two rollers is done by two control wheels 3120 and 3130, of 31 teeth each, where teeth are removed, in correspondence of the days when no rotation of the respective roller is necessary.
    [0050] FIG. 3 shows the drive train of the tens roller 12: the first drive means 31 comprise a first control wheel 3120, which comprises only four teeth present on the 31 theoretical teeth, to drive the four teeth from a star to four teeth 312 for driving the tens roller 12. A jumper not shown in the drawing is necessary to maintain the position of the four-tooth star 312, and to complete the drive function.
    FIG. 4 shows the drive train of the roll of the units 13: the first drive means 31 comprise a second control wheel 3130, which comprises only part of the 31 theoretical teeth, depending on the type of display produced, for driving the ten teeth of a pinion of the units 313 for driving the roller of the units 13. The second drive wheel 3130 can thus comprise either thirty teeth, or else, as here, twenty-nine teeth, the two missing teeth allowing 'cancel the rotation of the units when switching from 31 to 01. A jumper not shown in the drawing is necessary to maintain the position of the pinion of the 313 units with ten teeth, and to maintain the display position.
    These training principles are similar to those, well known, of date displays with large windows.
    Figs. 5 and 6 illustrate the display of the units on a roll of units 13. The ten units distributed around the circumference of a roll with a diameter of 5mm do not allow a large enough character size. Also the roll of the units 13, more particularly comprises several flaps 20A, 20B, 20C, 20D, 20E, each carrying on its at least two opposite faces 201, 202, at least two digits of the units. In this example, the roll of units 13 is thus divided, and five two-sided flaps 20 carry the ten units. These flaps 20 alternately have their two faces 201 and 202 to the user, and make it possible to double the height of the characters of the units.
    Figs. 7 to 11 illustrate the rotation and holding in place of the flaps 20 during the rotation of the carrier roller 10, and their own rotation.
    The flaps 20 can be driven in continuous rotation relative to the rotation of the roller 10, with a ratio of half. This solution is simple but requires space around the entire circumference of the roller 10, which is not always possible.
    To limit the size of the system, it is advantageous to use the solution described below, which manages a rotation of a flap 20 at a single point on the circumference of the roller 10. Each flap 20 is then held in position by a jumper 17, which collaborates with a shutter cam 25, in particular of the cam-core type, with two positions, mounted on the axis of the shutter concerned, the low point 26 of which cooperates with a projection of the jumper 17. A spring 15, in particular as in FIG. 7 a multiple arm spring, applies a force to the jumper 17 which maintains the position of the flap 20. A pinion 35 is also mounted on the axis of the flap 20.
    This pinion 35 can be driven by a gear train that includes the second drive means 32, not illustrated in the figures. In the particular variant of FIG. 7, the second drive means 32 comprise a fixed toothing segment, located at a point on the periphery of the roller 10. When the roller 10 rotates, a flap pinion 35 comes into cooperative contact with this segment, this which generates a 180 ° rotation of the flap 20 concerned.
    Figs. 12 to 14 illustrate, similarly, the rotation of a month roll comprising six flaps 20. Naturally, to make twelve indications on the circumference, one can also use four three-sided flaps, or even three four-sided flaps.
    [0059] FIG. 15 illustrates the rotation of a roll of the five-flap units. As explained above, the rotation of a roll of the units can be done with a wheel of 31 of which one or two teeth are missing for the passage on a pinion of ten teeth. For a rotation of 1/5 of a day per day, for a roller with five flaps, the pinion of ten teeth should be reduced to five teeth, geometrically this reduction is not possible with the function. It is therefore necessary to add a reduction by gear with a reduction torque: 3132, 3133, corresponding to the desired reduction. In this example, the different wheels of the gear train perform:
    - 3130 of 31 teeth: 1 turn per month
    CH 713 873 A2
    - 3132 of 10 teeth: 1 turn per 10 days
    - 3133 of 20 teeth: 1 turn per 10 days
    - 10 teeth: 1 revolution per 5 days In a particular embodiment with a Maltese cross, the first drive means 31 comprise an input train 61 which drives a main wheel 60, one revolution of which corresponds to the period display time of the roller 10, 11, 12, 13, 14, and which carries a main cam 50 carrying peripheral sectors of uneven geometry, concentric sectors 51 corresponding to the fixed display positions, and sectors with recesses 52 and fitted with 5X drive pins corresponding to the mobile positions of the display roller 10, 11, 12, 13, 14. This main cam 50 cooperates with a secondary cam 40 in eccentric Maltese cross, pivoting around a fixed point, and arranged to pivot during the passage of a recess 52 and a 5X pin. This secondary cam 40 carries a secondary wheel 42 meshing with a roller drive wheel 62, and the main wheel 60 also carries a main shutter drive wheel 63, which itself meshes with a shutter pinion 64 arranged for control a shutter drive pinion 35 centered on the shutter axis D20 or itself constituting a shutter drive pinion 35.
    More particularly, FIG. 16 illustrates a particular variant of this Maltese cross embodiment, for controlling the rotation of a roller with seven indications, corresponding to the days of the week. In this case days of the week, the number of days being a prime number, it is not possible to distribute it on shutters as simply as previously. If the roller does not show the seven days on the circumference, the solutions are limited:
    - roller with six fixed positions and a two-sided flap;
    - roller with five fixed positions and two double-sided flaps;
    - roller with four fixed positions and three two-sided flaps;
    - roller with a fixed position and two three-sided flaps;
    [0062] FIG. 16 describes the first variant of a roller with six fixed positions and a two-sided flap. Adaptation to the other variants can be carried out in a similar manner. The first drive means 31 comprise an input train 61, which drives a main wheel 60, one revolution of which corresponds to the display time period of the roller 10, in the application to display the days of the week, this main wheel 60 is driven 1/7 of a turn per day.
    More generally, for a display of N periods, the main wheel 60 is driven by 1 / N of revolution per day.
    The main wheel 60 carries a main cam 50, which is separated into N different peripheral sectors. These peripheral sectors are of unequal geometry: concentric sectors 51 correspond to the fixed display positions, and sectors with recesses 52 and provided with drive pins 5X correspond to the mobile positions of the display roller. In addition, the angular amplitude of the concentric sectors 51 can be variable, as will be seen below.
    This main cam 50 cooperates with a secondary cam 40 in Maltese cross, by the pins and the notches mentioned above. This secondary cam 40 is eccentric, pivots around a fixed point, and is arranged to pivot during the passage of a recess 52 and a 5X pin.
    This secondary cam 40 carries a secondary wheel 42 which meshes with a roller drive wheel 62, itself integral with the display roller 10 concerned.
    The secondary cam 40 in Maltese cross thus drives, six days a week, this roller drive wheel 62 of 1/6 of a turn, which corresponds to the six fixed positions of the roller.
    On the seventh day, the bearing surface 41 of the secondary cam 40 in Maltese cross remains in abutment on the longest 510 of the concentric sectors 51, and the secondary cam 40 in Maltese cross cannot therefore pivot. The roller drive wheel 62 is not driven, and the roller then remains stationary.
    The main wheel 60 also carries a main flap drive wheel 63, which itself meshes with a flap pinion 64 arranged to control a flap drive pinion 35 centered on the flap axis D20, or constituting itself a shutter drive pinion 35.
    This main flap drive wheel 63 performs, like the main wheel 60, 1/7 of a turn per day.
    The shutter pinion 64 carries the shutter 20 on two sides, and meshes with a ratio of 3.5 with the main shutter drive wheel 63.
    Therefore, when the roller drive wheel 62 is stationary, and the main wheel 60 makes 1/7 of a turn, the shutter pinion 64 makes 1/2 turn, with the side of the shutter 20 being changed.
    When the roller drive wheel 62 is released and is 1/6 of a turn and the main wheel 60 is 1/7 of a turn, the shutter pinion 64 is 1/12 of a turn, so in six days will resume its starting place.
    Figs. 17 and 18 illustrate an advantageous variant, where the jumpers and the spring ensuring the holding in position of the flaps are replaced by magnets 70, which exert a force, in particular of attraction, on the cams made of magnetic or ferromagnetic material.
    CH 713 873 A2 In another particular embodiment with partial teeth, instead of the Maltese cross systems described above, the first drive means 31 comprise an input train 61 which causes a main wheel 60, one revolution of which corresponds to the display period of the roller 10, 11, 12, 13, 14, and which carries a main cam 50 carrying peripheral sectors of uneven geometry: concentric sectors 51 corresponding to the fixed positions d 'display, and sectors comprising drive means 53 adjacent to recesses 52. The main cam 50 cooperates with an eccentric star 71, pivoting around a fixed point, and arranged to pivot during the passage of such means drive 53, and to remain in its angular position when two teeth 72 which it comprises are supported on a concentric sector 51. This star 71 carries a secondary wheel 70, which grène with a roller drive wheel 62 itself integral with the roller 10, 11, 12, 13, 14. The main wheel 60 carries, as before, a main shutter drive wheel 63, which meshes itself with a shutter pinion arranged to control a shutter drive pinion 35 centered on the shutter axis D20 or constituting itself a shutter drive pinion 35.
    More particularly, FIGS. 19 and 20 illustrate a variant of this embodiment, which has partial teeth. This variant is illustrated for a particular non-limiting case of a version with five fixed positions, comprising two movable flaps 20B and 20E with two faces, and without a Maltese cross.
    An input gear train gear 61 not shown performs 1 turn per day, and drives a main wheel 60, which is 1 / N, here 1/7 turn per day.
    The main wheel 60 carries a main cam 50, which is separated into seven different peripheral sectors, the peripheral sectors with or without drive means (here constituted by teeth 53), the concentric sectors 51 corresponding to the fixed positions display roller 20, and the sectors with drive means 53 corresponding to the mobile positions of the display roller.
    This main cam 50 cooperates with a star 71 of 4 teeth, held by a jumper not shown. This star of four 71 is eccentric, pivots around a fixed point, it is arranged to pivot during the passage of a drive means, in particular of a tooth in the illustrated embodiment, not limiting.
    The drive means 53 here comprising teeth, and preferably combined with recesses 52, are arranged to mesh with teeth 72 of the star of four 71. On the other hand, when two successive teeth 72 of the star of four 71 are simultaneously supported on a concentric sector 51, the star of four 71 cannot rotate.
    The star of four 71, pivoted on the plate, is thus arranged to perform 1/4 of a turn per day, except two days per week. In the example shown, when this star 71 rotated from Monday to Tuesday, it remains in its position on Tuesday and Wednesday, before changing position between Wednesday and Thursday. Similarly, when the star 71 has rotated from Friday to Saturday, it remains in its position on Saturday and Sunday, before changing position between Sunday and Monday. The shutter 20B will display a first position on Tuesday, will rotate 180 ° from Tuesday to Wednesday, to display a second position on Wednesday. Similarly, the shutter 20E will display a first position on Saturday, will rotate 180 ° from Saturday to Sunday, to display a second position on Sunday. On other days, the user will see fixed displays on the periphery of the roll 20: 20A on Monday, 20C on Thursday, 20D on Friday.
    This star of four 71 carries a secondary wheel 70, which meshes with a roller drive wheel 62, itself integral with the display roller 10.
    The four-tooth star 71 in fact drives this roller drive wheel 62 1/5 of a turn five days a week, which corresponds to the five fixed positions of the roller.
    The two additional days, the star of four 71 remains in contact with the concentric sectors 51, and therefore cannot pivot. The roller drive wheel 62 is not driven, and the roller 10 then remains stationary.
    The main wheel 60 also carries a main shutter drive wheel 63, which itself meshes with a shutter pinion arranged to control a shutter drive pinion centered on the shutter axis D20, or else itself constituting a shutter drive pinion 35.
    This main shutter drive wheel 63 performs, like the main wheel, 1/7 of a turn per day.
    The shutter gears carry the two-sided shutters 20B and 20E, and mesh with a ratio of 3.5 with the main shutter drive wheel 63.
    Therefore, when the roller drive wheel 62 is stationary, and the main wheel 60 makes 1/7 of a turn, the shutter pinion makes 1/2 turn, with change of side of the shutter 20 concerned.
    When the roller drive wheel 62 is released and is 1/5 of a turn and the main wheel 60 is 1/7 of a turn, the shutter pinion is 1/10 of a turn, so in 5 days will resume his starting place.
    Figs. 22 to 26 show, schematically, a variant for a display of leap years 400. This display of leap years 400 can be done by one or more hands, in particular and without limitation in the example of the figures with a triple hand 401 to 120 °, in the extension of the axis 402 of the month roller, facing a complementary leap display 403, in particular usually comprising markers such as 1, 2, 3, L, or B, or the like. A star 404, held by a jumper 405, drives this triple needle 401, and is itself
    CH 713 873 A2 driven by an eccentric lever 406 secured to a flap 407. In the example illustrated, the rotation of the star 404 is done by an eccentric lever 406 secured to the flap 407 for the months of March / September. When this flap 407 pivots through the toothed sector 408, the latter pushes the star 404 by one notch, as visible in FIGS. 24 and 25. The roller turns in six months, in July the lever does not trigger the rotation of the star.
    [0091] FIG. 27 illustrates another variant for holding the flaps 407 without a jumper, and with drive by partial toothing, with guidance by an external circumference 420 in contact with the flap 407 itself. In particular, as visible in FIG. 27, the flap 407 is guided in position by two teeth 410, 411, of its drive pinion 409. The latter may have one or more teeth removed, at a recess 412, to facilitate the function. The support is advantageously made on a partial outer or inner guide circumference, by two teeth delimiting a rotational circumference crossing the guide circumference. This crossing limits the rotation of the rollers on their axes. The guide circumference is interrupted on a portion 421 allowing rotation. This rotation is controlled by a toothing segment 408 provided for this purpose. This can, as in the figure, be part of the guide circumference 420.
    Likewise, in a variant of a shutter without a jumper, the shutter can be guided directly by an external circumference in contact with the shutter itself. In this way, the guide circumference is interrupted to let the shutter pass. The drive pinion can then be found in the configuration of the variant of FIGS. 7 to 11, or also in that of FIGS. 17 and 18.
    The different variants of the invention make it possible to produce roller displays of all kinds of indications in the reduced volume of a watch of normal size, with in particular a total thickness of the order of 10 mm per outside of the ice, or of the ice and the bottom. The shutters are not in contact with any part of the watch, and are not subjected to any shock or friction as part of their normal operation.
    权利要求:
    Claims (13)
    [1]
    claims
    1. Roller clock display mechanism (100), comprising at least one roller (10, 11, 12, 13, 14) pivoting around a roller axis (D10), said mechanism (100) comprising at least at least one structure (101) carrying at least one drum and / or at least one flap (20), characterized in that at least one first roller (10, 11, 12, 13, 14) has a plurality ferromagnetic elements (71) or magnets (70) respectively, each arranged to cooperate in attraction with at least one magnet (70) or respectively a ferromagnetic element (71), which comprises said structure (101) or a second roller ( 10, 11, 12, 13, 14) adjacent to said first roller and which includes said display mechanism (100), for aligning said first roller with a reference of said structure (101) or respectively with said second roller.
    [2]
    2. Display mechanism (100) according to claim 1, characterized in that at least one said roller (10, 11, 12, 13, 14) comprises a said structure (101).
    [3]
    3. Display mechanism (100) according to claim 2, characterized in that said mechanism (100) comprises at least two said rollers (10, 11, 12, 13, 14) adjacent which each comprise a said structure (101) , and each of which said structure (101) comprises a plurality of ferromagnetic elements (71) or magnets (70) each arranged to cooperate in attraction with at least one magnet (70) or respectively a ferromagnetic element (71) which comprises said adjacent structure (101).
    [4]
    4. Display mechanism (100) according to one of claims 1 to 3, characterized in that said structure (101) comprises a plurality of said magnets (70) or respectively of ferromagnetic elements (71) for indexing in the position of pivoting flaps (20) that comprises said first roller or a said second roller, each said flap (20) comprising at least one ferromagnetic element (71) or respectively a magnet (70).
    [5]
    5. Display mechanism (100) according to one of claims 1 to 4, characterized in that said first roller comprises a plurality of said pivoting flaps (20).
    [6]
    6. Display mechanism (100) according to claim 5, characterized in that said first roller comprises a plurality of said ferromagnetic elements / 71) and / or said magnets (70), for indexing in position said flaps ( 20) pivoting that comprises said first roller.
    [7]
    7. Display mechanism (100) according to claim 5 or 6, characterized in that each said flap (20) of said first roller comprises, for its maintenance in orientation position, a flap cam (25) or a cam -core comprising as many low points (26) as said flap (20) has faces (201,202), and in that said first roller comprises, for each said flap cam (25) or heart cam, at least one said ferromagnetic element (71) or a said magnet (70) which is magnetic and arranged to exert a force on said shutter cam (25) or core cam made of magnetic or ferromagnetic material for indexing in position of said shutter cam ( 25) or cam-heart.
    [8]
    8. Display mechanism (100) according to one of claims 1 to 7, characterized in that said display mechanism (100) comprises at least one said second roller which comprises a plurality of said pivoting flaps (20).
    [9]
    9. Display mechanism (100) according to claim 8, characterized in that said second roller comprises a plurality of said ferromagnetic elements (71) and / or said magnets (70), for indexing said flaps in position ( 20) pivoting that comprises said second roller.
    CH 713 873 A2
    [10]
    10. Display mechanism (100) according to claim 8 or 9, characterized in that each said flap (20) of said second roller comprises, for its maintenance in orientation position, a flap cam (25) or a cam -core comprising as many low points (26) as said flap (20) has faces (201, 202), and in that said second roller comprises, for each said flap cam (25) or heart cam, at least a said ferromagnetic element (71) or a said magnet (70) arranged to exert a force on said flap cam (25) or core cam made of magnetic or ferromagnetic material for indexing in position of said flap cam (25) or cam-heart.
    [11]
    11. Display mechanism (100) according to one of claims 1 to 10, characterized in that each said flap (20) is arranged to pivot around a flap axis (D20) parallel to said roller axis (D10) and distinct from said roller axis (D10), said at least one flap (20) comprising at least one first face (201) and at least one second face (202), said display mechanism (100) comprising first means of drive (31) for pivoting at least one said roller (10, 11, 12, 13, 14) about said roller axis (D10), said display mechanism (100) comprising second drive means (32) distinct from said first drive means (31) for pivoting at least one said flap (20) about its said flap axis (D20), in at least one determined position of said flap axis (D20) relative to said axis of roller (D10), and where said second drive means (32) comprise, at each said flap (20) d '' one and the same roller (10, 11, 12, 13, 14), at least one shutter drive means (35) arranged to pivot said shutter (20) around said shutter axis (D20) and arranged to cooperate with a control means that comprises said display mechanism (100) for sequentially or continuously modifying the position of said successive flaps (20) of the same said roller (10, 11, 12, 13, 14) or for modify on request the position of a said flap (20) determined.
    [12]
    12. Clock movement (500) comprising at least one display mechanism (100) according to one of claims 1 to 11, or comprising drive means (501) arranged to drive first drive means ( 31), which comprises said display mechanism (100) for pivoting at least one said roller (10, 11, 12, 13, 14) around said roller axis (D10), and second drive means (32 ), which comprises said display mechanism (100) for pivoting at least one said flap (20), which comprises a said roller (10, 11, 12, 13, 14) about a flap axis (D20) .
    [13]
    13. Watch (1000) comprising at least one clockwork movement (500) according to claim 12, and / or a display mechanism (100) according to one of claims 1 to 11.
    CH 713 873 A2
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    同族专利:
    公开号 | 公开日
    CN110579956A|2019-12-17|
    US20180011444A1|2018-01-11|
    EP3627239A1|2020-03-25|
    EP3267266B1|2020-04-08|
    HK1248835A1|2018-10-19|
    CN107577134A|2018-01-12|
    CN110579955A|2019-12-17|
    EP3267266A1|2018-01-10|
    JP2018004634A|2018-01-11|
    EP3627241A1|2020-03-25|
    JP6405418B2|2018-10-17|
    EP3627240A1|2020-03-25|
    CN110647025A|2020-01-03|
    CN110579955B|2021-08-27|
    CN107577134B|2019-11-01|
    US10365610B2|2019-07-30|
    CN110647025B|2021-07-23|
    EP3627241B1|2022-02-16|
    CN110579956B|2021-04-02|
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    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    EP16177872|2016-07-05|
    EP17175547.3A|EP3267266B1|2016-07-05|2017-06-12|Roller display mechanism for a watch|
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