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    • 专利摘要:
    The present invention relates to an analog display system, comprising: a display module comprising a fixed frame (2) and at least two substantially rigid display members, said display members each comprising a display portion of a pattern, said display portions being complementary to one another so that they form said pattern in at least one relative position of said display members, at least one of the display members being integral and movable relative to the frame via a deformable connection at least between a first rest position in which said display portions are distant from each other and a display position in which said display portions are cons-affixed to each other to form and display said pattern, the said display member (s) movable relative to the frame cooperate with an actuator tion (5) arranged to transmit a displacement force of this display member by elastic deformation around its deformable link (s) from said rest position to said display position, and a reversible blocking device (62) of the pushers actuations (5) of the mobile display members of said display module.
    公开号:CH715139A2
    申请号:CH00649/19
    申请日:2019-05-20
    公开日:2019-12-13
    发明作者:Cardot Francis
    申请人:Csem Centre Suisse Delectronique Et De Microtechnique Sa – Rech Et Developpement；
    IPC主号:
    专利说明:

    Description
    Field of the invention The invention relates to the general field of microtechnology and in particular the manufacture of parts by etching of silicon. The invention relates more particularly to a display system comprising at least one mechanical display module comprising a plurality of movable elements relatively to each other around at least one deformable link and a reversible blocking device for said movable elements in at least one position, thus allowing an animated display according to determined sequences.
    The display system of the invention finds a particular application in the watch industry, in particular for the production of watch faces or animated clocks, but also for any type of animated display for aesthetic, informational or other.
    STATE OF THE ART [0003] Analog display systems, in particular needle displays, have been known and used for decades in a multitude of applications in order to provide direct indication, for example on a graduated scale, a dial or other system. representation of a measurement value of a physical quantity such as speed, temperature, pressure, intensity, voltage or electrical resistance, of any information, or even and probably most widely used for measuring time.
    In a large majority of cases, the hands of a display device consist of a rigid unitary body secured to an axis of rotation mu by a movement, for example a watch movement in the case of a timepiece. At each rotation step of the axis of rotation, the needle performs a corresponding rotation, at least one of its free ends describing a trajectory of circular section thus pointing at each of its positions on the circular trajectory with information indicating value. measured physics, a calendar of times, or generally any information to indicate to a user. The indication is thus carried out essentially in the longitudinal axis of the needle at one and / or the other of its opposite ends in collaboration, where appropriate, with an underlying display, such as a scale by example.
    Also known, in particular for clocks, mechanical display systems, for example with pallets, which indicate time information by aligning numbers printed on the pallets, the latter being pivoted about an axis by gravity during the release of blocking locks at each calendar date to be indicated.
    Other variants of displays actuated by mechanical systems have also been proposed in the state of the art, essentially in the watchmaking field. We can cite among others the digital display of the “nail board” type of the Opus 8 model, marketed by the company Harry Winston SA or the digital display device of the current time by rotation of a sub-disc. adjacent to a dial provided with a window as proposed in Swiss patent application CH 691 833 A5.
    These different displays all have the drawback of proceeding with a complex structure of different superimposed elements and requiring actuation mechanisms additional to the basic clockwork mechanism to which these actuation mechanisms should be coupled, which disturbs the progress of the watch movement or at the very least negatively affects energy consumption.
    The applicant has proposed in patent CH 712 875 the production of monolithic display modules obtained by etching of silicon and making it possible to produce watch faces or any animated digital or aesthetic display, comprising movable display elements around flexible connections formed in the mass during the etching of the modules. The display elements of the module are set in motion by means of a cam moved in rotation, for example by a watch movement, and which during its rotation pushes an actuating arm mobilizing the flexible connections and the appropriate movement of the display elements between a rest position and a display position, thus achieving a digital display of the value of the hour (or any date). The time pattern is then visible for a limited time corresponding to the duration of the passage from the highest point of the active sector of the cam in contact with the actuating arm and then gradually disappears as the actuation, driven by the return forces of the flexible connections, follows the downward profile of the cam sector and causes the display elements to move away from one another and the patterns to disappear. The main cam activation sector is set up so that the time is fully legible from the start of an hour (corresponding to the passing of the minute hand at 12 o'clock) until a few minutes after the change of time. time during which the current hour h disappears little by little as the hour h + 1 appears, in the manner of a crossfade transition, until the exact time, from which only l 'hour h + 1 is visible on the dial. The encrypted display patterns being arranged in 30 ° steps within the display module, the active sector of the cam must have a value greater than 30 ° to allow the crossfade.
    By increasing the angle of the main cam activation sector it is possible to display more than one hour at a time, for example [h-1; h] or [h-2; h-1 ; h], or more generally [hn; ..., h-1; h], but always the same number of "hours". It is therefore not possible by this approach to produce a display presenting a more complex animation, for example a display indicating the progression of the hours in the form h then an hour after [h-1; h], then an hour after [ h-2; h-1; h], then [h-3; h-2; h-1; h], etc.
    The object of the present invention is to overcome this drawback and to propose a solution allowing complex display, permanent or not, of the display patterns, if necessary with sequential animations.
    Object of the invention To this end, the present invention provides a display system and a timepiece as defined in the claims.
    According to a first object, the invention relates to a display system comprising a display module as described in application CH 712 875 and a reversible blocking device for the actuation pushers of the mobile display members of said display module.
    The display module comprises in known manner a fixed frame and at least two substantially rigid display members, each comprising a display portion of a pattern, said display portions being complementary to one of the 'other so that they form said pattern in at least one relative position of said display members. At least one of the display members is integral and movable relative to the frame by means of a deformable link at least between a first rest position in which said display portions are distant from each other and a display position in which said display portions are counter-affixed to each other to form and display said pattern. Said display members are movable relative to the frame cooperate with an actuating pusher arranged to transmit a displacement force of this display member by elastic deformation around its deformable link (s) from said rest position to said position d display.
    In the context of the invention, the term “rigid display members” is understood to mean elements of the display module participating in the punctual display of a timetable and made of a material, the module of which Young is greater than 2.3GPa.
    Advantageously according to the invention, said display members, the frame and the deformable links form a monolithic part. In other words, the elements of the display module are made of a single material without assembly.
    The display module of the invention can for example be produced by molding and / or machining of metal alloys, glasses, ceramics (AI 2 O 3 ), hard machinable and / or photocurable polymers (epoxy , PEEK).
    According to an advantageous embodiment, the display module of the invention advantageously consists of monocrystalline or polycrystalline silicon. The silicon surface can be covered with different layers (oxide, metal, ...) in order to improve its aesthetics or its mechanical performance, or to allow the addition of decorative elements to the surface. The display module can thus advantageously be produced by deep silicon etching processes.
    According to one embodiment of the member of the invention at least one display member may have several deformable connections relative to the frame. The provision of several deformable links makes it possible in particular to limit the number of degrees of freedom of a display member with respect to the frame, for example in translation or in rotation.
    According to the various embodiments of the invention, and very particularly in the context of a display module made of silicon, the deformable links are preferably made up of flexible blades with a width of between 2 and 50 microns, the thickness of the frame and of the display member (s) being greater than 30 microns. This dimensioning thus effectively provides an elastic character to the flexible blades forming the deformable links while the thicker portions of the frame and the display members are completely rigid and devoid of elastic character.
    Preferably, the reversible blocking device for the actuating pushers of the display members forms a monolithic part with said display members, the frame and the deformable links or links.
    Preferably, the reversible locking device and the display module form a monolithic multilevel assembly.
    Preferably, the reversible blocking device comprises piston actuators arranged to mobilize said actuating pushers in response to a command from a control device.
    Alternatively, the reversible locking device includes locking members arranged to hold said actuating pushers in response to a command from a control device.
    Alternatively again, the reversible locking device comprises complementary locking members arranged at least partially on the actuating plunger to maintain said actuating plungers in the display position of the display members and capable of being released. in response to a command from a controller.
    More preferably the display system of the invention comprises an actuating device arranged to transmit a motor force on the actuating pusher so as to induce a displacement of the movable display member or members from the position to the display position.
    The actuating device may comprise a cam or a lug, said actuating device being movable in rotation about an axis of rotation and arranged relative to the actuating pusher so that said cam or said lug exerts in at least one angular position around the axis of rotation on the actuating plunger an effort capable of mobilizing said pusher.
    Advantageously, the actuating device is also a device for controlling said device for blocking the actuating pushers.
    The present invention finally relates to a timepiece characterized in that it comprises a display system as described above. In this context, the device for actuating the display system is preferably linked kinematically to the hour mobile and / or the minute mobile of a watch movement and the display module or modules are arranged to display a date of time.
    Preferably, the display system is also configured to display the hours over 12 consecutive hours and arranged in kinematic connection with the watch movement to indicate a calendar hour by successive blocking at each full hour of the display units of the pattern corresponding until display of the pattern "12" during which the other patterns disappear successively clockwise or counterclockwise by releasing the blocking device of said actuating pushers.
    Description of the figures The invention will be better understood on reading the detailed description of an exemplary embodiment made with reference to FIGS. 1 to 10 appended, among which:
    fig. 1A and 1B represent a display module as known from the prior art; fig. 2A and 2B represent a first alternative embodiment of a display system according to the invention; fig. 3A and 3B represent a second alternative embodiment of a display system according to the invention; fig. 4A and 4B represent a third alternative embodiment of a display system according to the invention; fig. 5A to 5C represent a fourth alternative embodiment of a display system according to the invention, with a monolithic locking device with the display module and a separate unlocking device; fig. 6A to 6D represent a fifth alternative embodiment of a display system according to the invention with a monolithic locking device with the display module; fig. 7a to 7D represent a monolithic unlocking device with the locking device and the display module in the fifth embodiment; fig. 8A to 8F represent the operating kinematics of the unlocking device of the fifth alternative embodiment of a display system according to the invention; fig. 9A to 9F represent the operating kinematics of a device for setting the time in a counterclockwise direction for the fifth alternative embodiment of the system according to the invention; fig. 10 represents a schematic view in longitudinal section of a module of the invention engraved on several levels A, B, C.
    Description of embodiments of the invention The present invention relates to a new type of analog display system, allowing the production of complex animations within the display elements of said display system. and according to different display methods and purposes.
    More particularly, the display system of the invention can be applied to an entire time display time system by digital and analog representation, that is to say in the form of figures formed by analog display units, as opposed to electronic display units, of the desired hourly calendar, for example the value of the hour h.
    The invention follows from the principles already described in application CH 712 875 of the applicant which describes a dial allowing an animated display of the time. This dial can be formed of twelve elementary modules each animating an hour as presented in figs. 1A and 1B, or else be formed on a monolithic form comprising the twelve modules linked together in a unitary part. The display of a so-called hour calendar h is however identical regardless of the embodiment of the dial.
    As shown in Figs. 1A and 1B, a display module 1 according to the invention consists of a digital display module of a pattern M such as a number or a number comprising a fixed frame 2 to which at least two organs of display, in this case five display members 31, 32, 33, 34, 35 to form the number "12" (fig. 1B). The display members 31, 32, 33, 34, 35 are integral with the frame 2 and each comprise a display portion of the pattern M, said display portions being complementary to each other so as to form said pattern M in at least one display position as shown in FIG. 1 B.
    To this end, at least some of the display members 31, 32, 33, 34, 35 are movable relative to the frame 2 by means of at least one deformable connection 4 formed by at least one flexible blade 41 between a first rest position, shown in FIG. 1 A, in which the display portions of the display members 31, 32, 33, 34, 35 are spaced from each other and said display position, shown in FIG. 1 B, in which said display portions are counter-affixed to each other to form and display the pattern M.
    The displacement of the movable display members around their deformable connection 4 between the rest and display positions results from the displacement of an actuating pusher 5 also secured to the frame 2 by a structure 8 for guiding in translation linear with flexible blades 81. The pusher 5 has at its lower end a contact member adapted to cooperate with actuation device 6, such as a cam 61 movable in rotation about an axis A. at its upper end the pusher 5 comprises a plate 51 of which two flexible “butterfly” pivots 42 are connected, connected to the base of deformable actuating rockers B1, B2 at the upper end of which the display members 32, 33, 34 are attached. The members display are thus movable around the deformable links. Such a construction has the advantage of not providing any friction within the display module 1 due to movements, only deformations, therefore a minimum loss of energy.
    The display module 1 of the invention advantageously consists of a monolithic part formed of a rigid material, which is understood in the context of the present invention as any material whose Young's module is greater at 2.3 GPa. As such, a preferred embodiment of the display module 1 of the invention is silicon, monocrystalline or polycrystalline, from which it is easy, for example by deep etching processes (in particular DRE - for Deep Reactive-ion Etching in English), form the frame 2 and the display members 31, 32, 33, 34, 35 connected to each other by at least one or more flexible blades 41 with a width of between 2 and 50 microns, the thickness of the frame 2 and of the display member (s) being preferably more than 30 microns.
    The frame 2 of the display module 1 can be fixed to a dial, a disc or directly on the middle of a watch case for a skeleton watch by any suitable means and in particular bonding or welding. By way of an actuating device 6, one comprising one or more cams 61, is kinematically linked to the hour canon and pivots around the axis A, for example centered on the watch face as in a conventional needle display.
    The operation of such a display system is particularly simple. During the rotation of the ring 6 under the action of driving the hour wheel of the clockwork of a timepiece movement, the cam 61 comes to push the free end of the actuating pusher 5 (fig. 1 B) which acts as a follower contact, and causes a translational movement of the actuating pusher 5 along its longitudinal axis by deformation of the guide structure 8. This translation induces a rise of the plate 51 and the deformation of the butterfly pivots 42, causing the rotation of the two scales B1 and B2. The display members 32, 33, 34 connected to the upper ends of said flip-flops B1, B2 then come to adjust in the display position with respect to the other display portions 31, 35 to form the pattern M. After the passage of the cam 61 the follower contact of the actuating pusher 5 returns to bear on the ring 6. The display members 32, 33, 34 then move away to return to the rest position (fig. 1 A) and the pattern is no longer visible.
    This produces an animated display system comprising movable display portions according to a determined period to generate a visual animation effect within the display.
    According to the operating principle of module 1 described above, the actuation of the display is entirely dependent on the interaction of the pusher 5 with the cam 61. The angular sector of activation of the cam 61, corresponding to its parts which can have an action on the pusher 5, includes a rising profile A1, a high point A2 and a descending profile A3. The pattern M formed in the display position, that is to say when the pusher 5 is in contact with the high point A2 of the cam 61 is visible throughout the duration of the high point and then gradually disappears gradually that the push rod 5, driven by the restoring forces of the flexible mechanisms 8, 42, B1, B2, follows the downward profile and causes the display members 31, 32, 33, 34, 35 to move away from each other other. The separation is complete when the pusher 5 returns to its low rest position. The activation sector of the cam 61 is established so that the time is fully readable from the start (minute hand indicating “12”) until a few minutes of the time change during which the time in progress h disappears little by little as the hour h + 1 appears, in the manner of a crossfade transition, until the exact time, from which only the hour h + 1 is visible on the dial. Considering a complete dial formed by 12 display modules 1 for each hour h to be displayed according to a conventional form of display, the modules must then be located on the dial in 30 ° steps and the activation sector of the cam 61 of the actuating device 6 must have a value greater than 30 ° to allow the crossfade.
    By increasing the angle of the activation sector of the cam 61 it is possible to display more than one hour at a time, for example [h-1; h] or [h-2; h-1 ; h], or more generally [hn; h-1; h], but always only a specific and invariant number of "hours". It is therefore not possible by this approach to produce a display presenting a more complex animation, for example a display indicating the progression of the hours in the form h then an hour after [h-1; h], then an hour after [ h-2; h-1; h], then [h-3; h-2; h-1; h], etc.
    The present invention aims to improve a display system consisting of one or more modules as previously described in order to be able to provide a progressive display of the time, also taking into account the change to 12h / 24h, such as for example with 12-hour pallet or digital displays. The invention aims in particular to provide a display system comprising a dial formed by 12 modules as described in figs. 1A and 1B to form a 12-hour display respecting a display sequence such that at time t = O1hOO the system legibly displays the number "1" in the first sector (first module), the 11 eleven other sectors do not not being readable. Then an hour later, at t = 2h00, only the "1" and the "2" are visible. Over time the sequence continues so that the current hour and all previous hours can be read from the value "1".
    At t = 11:00 am the "11" is displayed. All other numbers are legible. During the last minutes before the appearance of the "12" corresponding to noon, the numbers displayed will gradually disappear, making them unreadable. The sequence of disappearance of the numbers begins with "1", then "2" and so on until all the numbers from "1" to "10" disappear. The “11” finally disappears and the “12” becomes readable. This disappearance sequence is carried out clockwise. It thus indicates that time continues and that the “12” indicated thus corresponds to noon.
    Then, at At = 1 p.m., the "12" disappears and only the "1" is displayed on the dial and the progressive display sequence takes place over time as described above until t = 11 p.m. where are displayed all the numbers from "1" to "11". During the last minutes before the midnight "12" appears, the displayed values will disappear, making them unreadable. The sequence of disappearance of the numbers begins with "10" then progresses until finally making disappear in a retrograde way all the numbers from "10" to "1". The “11” then disappears and the “12” becomes readable.
    This disappearance sequence is carried out counterclockwise, indicating that the "12" displayed corresponds to midnight, this retrograde sequence marking the return to the start of a new day.
    This complex animated display sequence allows both a digital and analog representation of the progression of time, as well as the passage of noon (am / pm).
    The realization of a display system capable of implementing the display sequence mentioned above can result from different approaches implementing basic display modules described in figs. 1A and 1B assembled or formed integrally in monolithic form in 12-hour display dials to cooperate with an actuating device 6 coupled to the hour wheel of a watch movement, which may be both mechanical and electronic (quartz ). All of these approaches require blocking for a fixed period, corresponding to the number of hours between the normal display moment of the M pattern of each module and the corresponding full hour at noon or midnight, therefore switching to 12 o'clock on the dial comprising modules.
    These different approaches are presented below in an order indicating a gradual decrease in the mechanical complexity required for a watch movement to allow the display as described above, corresponding to a gradual increase in the complexity of the modules d 'monolithic displays.
    Approach n ° 1 This first approach is presented in figs. 2A and 2B, showing only an enlargement of the lower part of a module 1 as shown in fig. 1, for simplicity and for the sake of clarity of representation, a full display dial over 12 hours comprising 12 identical modules.
    The pusher 5 of a said module 1 is actuated in this approach individually by an actuating device 6 comprising twelve individual actuators 62 successively controlled by the watch movement, said actuators 62 can be fingers or pistons as shown in fig. 2A, 2B or cams, thus controlling their movement and their position at any time. The watch movement must therefore control the twelve individual actuators 62, which represents a significant complexity of the watch movement. This solution allows great freedom in displaying and organizing patterns.
    Approach # 2 This embodiment is presented in figs. 3A and 3B. As in fig. 1, the pusher 5 is brought from its rest position (fig. 3A) to its high display position (fig. 3B) by means of a single cam actuator 61 driven by the movement hour wheel watchmaker. Maintaining in the high display position of the pusher 5 of a module for carrying out the abovementioned display sequence is obtained by locking members 9, of the clamp or friction shoe type, actuated by the watch movement when the cam 61 reaches its high point. The locking members 9 make it possible to individually block or unblock the descent of each of the rods of the pushers 5 to their rest position. This blocking can be carried out in the high position or in any other intermediate position between the high position and the rest position.
    Approach No. 3 This third approach, presented in FIGS. 4A and 4B aims to integrate at least one functional part of the necessary blocking device of the push rod 5 in the high display position in order to obtain the maintenance of the display members of a module 1 in order to preserve the formation of the pattern M d 'one hour during the previously defined display sequence. For this, the push rod 5 advantageously comprises discrete stopping points formed by notches 52 materialized by notches 52a or protrusions 52b, preferably in the form of a triangular harpoon, intended to cooperate with an additional blocking member 9 controlled by the watch movement and provided with a bolt 91 making it possible to block (fig. 4B) a stop notch, therefore to block the pusher 5 in its high position after normal actuation by pushing the cam 61 linked to the hour wheel of the watch movement, or to unlock a stop notch to release the push rod (fig. 4A) which can return to its rest position, this unlocking occurring independently of the cam 61 of the actuating device 6.
    This embodiment therefore makes it possible to significantly reduce the size of the pushing blocking elements 5 controlled by the watch movement at the level of each unit display module 1. However, it still requires the implementation of a control mechanism for said blocking elements according to the previously defined sequence, which implies a suitable control mechanism, mechanical or electronic, and therefore an adaptation of an existing watch movement, such as the two previous approaches.
    Approach No. 4 This embodiment represents an improvement on the previous one, with an even greater integration of the locking elements within the unit display modules. As shown in fig. 5A to 5C, at least one stopper in the shape of a triangular harpoon 52 is formed on the rod of the pusher 5 and a locking trigger 10 is formed of material in connection with the frame 2 substantially facing the zone of movement of the stop 52. The locking trigger 10 is composed like the rest of the silicon module 1 and comprises a rigid body 101 incorporating at a top end a bolt 102 forming a lateral projection on the rigid body 101 in the direction of the push rod 5. The base of the rigid body 101 comprises a finger 103 for connection to the frame 2 by means of a flexible blade 110, which allows the rigid body 101 to pivot or more exactly to tilt relative to the frame 2 and to the pusher 5 when a stress is applied to the rigid body 101 or to the bolt 102.
    In Figs. 5A to 5C the actuating device 6 of the pusher 5 is not shown for simplification of representation. However, the latter is necessary for actuating the pusher 5 and it can advantageously consist of a rotary cam 61 as in the previous examples, FIG. 5A represents the module 1 and the pusher 5 in the rest position, that is to say analogous to FIG. 1 A, with the display members 31, 32, 33, 34, 35 separated from each other, the pattern M not being formed. When the cam 61 engages the lower end of the pusher 5 and reaches its high point (FIG. 5B) the pusher rod 5 is pushed upwards which causes the stop notch 52 to rise, the beveled plane of which takes place during the rise rests on the bolt 102 of the trigger 10 and pushes it back, causing the trigger 10 to rock around its flexible connection 110. When reached at the highest point, the stop notch exceeds the bolt 102 which falls under the notch stop by the elastic return effect of the connection 110 on the trigger 10. The stop notch then bears on the bolt 102, operating the blocking of the pusher 5 in the high display position. The trigger 10 is then engaged. The release of the trigger 10 to allow the pusher 5 to return to its rest position intervenes (FIG. 5C) then by means of a detent element 9, composed of a pusher or a cam controlled by the watch movement, said detent element 9 bearing on a latch 104 for releasing the trigger 10 by tilting it, which releases the stop notch 52 and allows the push rod 5 to return to its rest position, as well as the display units of module 1.
    Approach No. 5 This embodiment presents an embodiment of a CD monolithic display dial, shown partially in FIGS. 8A to 8F, comprising 1.1 'monolithic modules associated with a blocking device 9 integrated into said 1.1' modules and comprising all the functions necessary for blocking and unblocking the pushers 5 of the 1.1 'modules in order to produce a animated time display sequence as previously defined. The dial CD made up of such modules 1, 1 ′ does not require any modification of a timepiece movement with which it is associated and the actuation of the pusher 5 of the module 1 as well as its blocking / unblocking requires only the actuating device 6 to cam 61 or the like coupled to the hour wheel of the movement, as shown in relation to FIGS. 1A and 1 B.
    The 1.1 'modules have in this embodiment a more complex structure, obtained on three etching levels A, B, C of a base substrate, preferably formed of a SOI type composite substrate ( Silicon On Insulator) shown schematically in fig. 10 As is well known to those skilled in the art in the field of microtechnologies on SOI substrate, each of the etching levels A, B, C can be etched separately and defined a separate etching plane PA, PB, PC, the decoupling between elements of different levels being achieved by a partial attack of the oxide connecting the 2 levels.
    The hour display CD display consists of a set of two types of modules 1, Γ. The first type of module 1 is an elementary module as presented in FIG. 1, equipped with a locking device adapted to keep the display of the pattern Μ of each module 1 active until the next passage at noon / midnight. This first type of module 1 is therefore intended to display the hours from "1" to "11". The second type of module 1 ′ is an elementary module as presented in FIG. 1, equipped with an unlocking device adapted to release the locking device of each module 1 of the first type when passing at 12 noon (midday / midnight) in order to provide the corresponding animation as defined in the desired display sequence predefined. This second type of module V is therefore intended to display the "12".
    A detailed description of each first second type of module 1.1 and their respective locking device and unlocking device is presented below.
    First type of module 1 and its blocking device This first type of module 1 is shown in a preferred embodiment in FIGS. 6A to 6D.
    As in the two previous approaches, the pusher rod 5 comprises at least one discrete stop notch in the form of a triangular harpoon 52. The pusher 5, as well as the frame 2 to which it is attached, the translation device 8 , the butterfly flexible connections 42, the rockers B1, B2 the display members 31, 32, 33, 34, 35 and the flexible blades 4 are produced on the upper level (Si Device - A) of an SOI substrate. The module 1 also includes a locking trigger 12, which is produced on a lower level (Si Handle - B) of the same SOI substrate. This locking trigger 12 is composed of a rigid body 121 of complex shape, comprising a lower plate 121a, integral with a median cross section 121b itself integral with an arcuate terminal sector 121c. A free end of the lower plate 121a has a trigger finger 1211 and a trigger lever 1212 and the free end of the terminal sector 121c forms a bolt 1214 whose shape extends in thickness to the upper level. Thus, taking reference to FIG. 10 as a longitudinal section of the module 1, the bolt 1214 forms a projection perpendicular to the plane PB in which the trigger 12 is formed and which extends in the plane PA of formation of the pusher 5 and its catch 52 so that these elements can cooperate with each other. The body of the trigger 121 can pivot thanks to a set of flexible blades 1215 which connects it to the frame 2 module 1 at the upper level by a connecting pillar 1216.
    In FIG. 6A, the trigger 12 and the pusher 5 of the module 1 are initially in their rest position. When the push rod 5 goes up (fig. 6B) under the action of the actuating cam (not shown) secured to the hour wheel as in fig. 1 A, 1B, the bevelled part of the stop notch 52 pushes back the bolt 1214 and causes the triggering of the trigger 12 around its flexible rocker formed by the blades 1215 .. Arrived at the high point of the actuating cam, the pusher 5 is in the display position and the stop notch 52 is passed over the bolt 1214 which then returns to its rest position and prevents the push rod 5 from coming back down. The trigger 12 is then engaged.
    Module 1 finally includes a mechanism 16 which allows the time to be set in counterclockwise mode, the operation of which is detailed below. This mechanism allows more particularly to disengage the trigger 12 so that it does not act on the pusher 5 when setting the time counterclockwise.
    Second type of module 1 ′ and its unlocking device The second type of module V of the animated CD display dial of the invention in this 5th approach is shown in FIGS. 7a to 7D. The particularity of this second module 1 ', intended for displaying the "12", resides in the provision in the monolithic structure of a mechanism for unlocking the triggers 12 for blocking modules 1 of the first type. This mechanism comprises firstly a double cam 17 formed on the pusher 5 'of said module 1', this double cam 17 acting on a trigger relaxation mechanism 12 of modules 1 as previously presented to allow the release of pusher 5 from each module 1 and its return to the rest position.
    The double cam 17 consists of an arrow or tip having two inclined planes 17a, 17b symmetrical to each other with respect to the longitudinal direction of the push rod 5 'through which the tip 17c of junction of said inclined planes 17a, 17b, the inclined plane 17a of activation of the trigger mechanism in a clockwise rotation direction and the inclined plane 17b of activation of the trigger mechanism in a counterclockwise direction.
    The trigger mechanism is formed on the lower level of the substrate in which the modules 1,1 'are etched and includes a movable trigger wheel 13 shaped to interact with the double cam 17 of the module 1' of second type to allow a release of the locking trigger 12 of the modules 1 of the first type during the passages at midday and midnight, that is to say at each passage at 12 o'clock of the dial CD. It comprises a fixed hub 14 to which the detent wheel 13 is connected and with respect to which it can pivot via at least one flexible blade 15 or a set of radial flexible blades between the hub 14 and the wheel. trigger 13 (fig. 6A). The fixed hub 14 is connected to the frame 2 of the module 1 between the two etching levels thereof, in a conventional manner either.
    The detent wheel 13 is advantageously shaped to cooperate on the one hand with the fingers 1211 of the triggers 12 of each module 1 of the first type of the dial CD and on the other hand with the double cam 17 of the module V of the second type forming said CD dial. It thus has on its upper peripheral field (with reference to the figures), at the level of said finger 1211 of the trigger 12 of each module 1 a recess 131 forming at its ends a time expansion cam 132 and a counterclockwise expansion cam 133. It further comprises a detent feeler 18 formed this time on the lower field (still with reference to the figures) of the detent wheel 13 at the level of module V of the second type, said feeler 18 comprising a contact ball 181 formed at the free end of a flexible blade 182, the base of which is connected to a reversing rocker 19. The reversing rocker 19 comprises at one of its ends a rocker contact 20 and at the other end a rocker keeper 21. The reversing lever 19 can pivot around its junction point with the blade 182 thanks to a pair of flexible blades 22 symmetrical with respect to said flexible blade 183 of the contact 18 and which connects it e to an arch 134 of the detent wheel 13. This reversing rocker 19 is arranged and shaped to cooperate with a rocker trigger 23. The rocker trigger 23 has at a first end a contact point 231 at the hub 14 and at the other end a bolt 232 contacting the reversing lever 19, bolt 232 by which it is also linked to the detent wheel 13 by means of a flexible blade 24.
    When the pusher 5 ′ of the module V is in the low position and there is no constraint imposed on the flexible blades 182, 22, 24. In this rest position, illustrated in FIG. 7a, which is the initial position, the center of the trigger probe 18 is offset on the right with respect to the axis of translation of the push rod 5 During a first rise of the push rod 5, illustrated in FIG. 7B, the tip of the double cam 17 is located to the left of the trigger probe 18, which is therefore activated by the time portion 17b of the double cam 17. When it is mounted (fig. 7B) the double cam 17 presses the detent feeler 18 against an hourly detent stop24, and therefore the upward movement results in a rotation of the detent wheel 13 clockwise. During this rotation the rocker contact 20 comes to bear on an inclined plane forming rocker cam 141 on an arm arranged in the fixed hub 14 of the detent wheel, and causes the rotation of the reversing rocker 19 to the left ). During this rotation the rocker keeper 21 comes to engage in the bolt 232 of the trigger 23, thus blocking the reversing rocker 19 in its position turned to the left in fig. 7B. This rotation adds an additional torque to the left in the flexible blade 182, which was already subjected to a return torque to the left due to the movement of the trigger probe 18 against the time stop 24.
    During the first descent of the pusher 5 'the detent wheel 13 returns to its rest position, as illustrated in FIG. 7C. The reversing lever 19 being blocked in the left-turned position, the torque of rotation to the left which it induces in the flexible blade 182 causes the displacement of the trigger probe 18 to a counterclockwise stop 25 opposite to the time stop 24 In this configuration, the center of the trigger probe 18 is offset to the left with respect to the axis of translation of the push rod 5 '.
    During a second rise of the pusher 5 illustrated in FIG. 7D, the tip of the double cam 17 is located to the right of the trigger sensor 18 which is therefore activated by the counterclockwise part 17a of the double cam 17. The upward movement then results in a rotation of the trigger wheel 13 in counterclockwise. During this rotation the rocker trigger contact 23 comes to bear on a trigger cam 142 formed on an arm of the fixed hub 14 and causes the rocker trigger 23 to rotate to the right. During this rotation the bolt 232 of the rocker trigger 23 releases the rocker keeper 21. Before being thus released, the reversing rocker 19 underwent a torque to the right from the stressed blades 22 greater than the torque induced to the left by the blade 182 due to the movement of the feeler 18 against the counterclockwise stop 25. When released the reversing rocker 19 will then turn to the right and take an equilibrium position such that the rocker keeper 21 passes over the reversing latch bolt 22 and can no longer be blocked by it. During the second descent of the pusher 5 the detent wheel 13 returns to its rest position, as well as the trigger and the reversing rocker 19 now released. The probe 18 returns to its rest position. The system is therefore found in the rest position as illustrated in FIG. 7A. Each time the push-button 5 is mounted, this device therefore makes it possible to cause the detent wheel 13 to rotate, in a direction opposite to the previous direction of rotation.
    In accordance with the above, and as illustrated in FIG. 6C, when the detent wheel 13 is in clockwise rotation the hourly detent cam 131 comes to lift the finger 1211 of the locking trigger 1212, which lifts the plate 121a of locking trigger 12 and pivots it around the connections 1215, releasing the bolt 1214 from its engagement with the catch 52, which allows the pusher to return to its rest position. When the detent wheel 13 is in the rest position (no stress exerted on the flexible blade 15), the relative position of the locking trigger finger 1211 12 relative to the time detent cam 131 makes it possible to fix the moment of triggering of the locking trigger 1212 as a function of the advance of the detent wheel 13 clockwise. Similarly, as illustrated in fig. 6D, the locking trigger 1212 is triggered by the counterclockwise trigger cam 132 when the trigger wheel 13 is in counterclockwise rotation, at a moment determined by the initial relative position of the locking trigger finger 1211 relative to the cam counterclockwise trigger 132.
    Figs. 8A to 8F shows in detail the different operating phases of the blocking and unblocking mechanisms of the 1.1 ′ modules forming the CD dial in this 5th approach of the invention. This view represents a partial CD dial integrating the modules 1 of the hours "11" and "1" framing the module 1 'for displaying a twelfth hour. These views do not show the entirety of the modules 1.1 'constituting the CD dial, but only an enlargement of the critical area of the CD dial where the locking / unlocking mechanisms of the push rods 5 previously presented.
    In this example the transition from one number to the other takes place in two minutes, that is to say that the hour n + 1 begins to form from the time n plus 58 minutes. For example, the rod of the "12" begins to rise from 11.58 am and reaches its high position completely at 12 noon, this number then being displayed completely.
    During operation of the monolithic CD dial, the operations are as follows:
    Fig. 8A: It is 11:00 a.m., the hours from "1" to "11" are displayed, that is to say that the push-buttons 5 of modules 1 from "1" to "11" are all locked in the high position. In the drawing, the pushers 5 of the display modules 1 of the "1" and the "11" are in the high position. In module V displaying the "12" the reversing lever 19 is at rest and the center of the trigger probe 18 is positioned to the right of the axis of the pusher 5 '.
    Fig. 8B: It is 11.59 a.m. The rise of the pusher 5 'of the module 1' causes a clockwise rotation of the detent wheel 13. The first display modules 1 were triggered successively, gradually disappearing clockwise the hour display in accordance with the display sequence of the invention as previously defined. This is illustrated in the figure where the pusher 5 of the module 1 for displaying the "1" is in the low position, therefore the "1" is no longer displayed, while the rod for the pusher 5 of the module 1 for displaying the "11" is still locked in the high position because this number is displayed.
    Fig. 8C: It is noon, the hours from “1” to “11” are no longer displayed. In the figure, the pushers 5 of "1" and "11" are in the low position, the detent wheel 13 being in maximum clockwise rotation. In module V displaying "12", push-button 5 'is in the high position, "12" is displayed. The rocker 19 is locked in the position turned to the left.
    Fig. 8D: It is 11:00 pm, the hours from “1” to “11” are displayed, that is to say that the push-buttons 5 of the modules 1 for displaying the hours from “1” to “11” are all locked in high position. The push-buttons of the display modules 1 for "1" and "11" are in the high position. In module V displaying the "12" the rocker 19 is locked in the position turned to the left and the center of the trigger probe 18 is positioned to the left of the axis of the pusher 5 '.
    Fig. 8E: It is 11.59 p.m. The rise of the push-button 5 ′ for displaying the “12” causes a rotation in the counterclockwise direction of the detent wheel 13. The last modules 1 of the first activated type (“11”, “10”, etc.) have been triggered successively, gradually disappearing counterclockwise the display of these hours. This is illustrated in the drawing where the push-button of the display module of "11" is in the low position, therefore the "11" is no longer displayed, while the push-button 5 of the display module of "1" is still locked in the high position because this number is displayed.
    Fig. 8F: It is midnight, the hours from “1” to “11” are no longer displayed. The pushers 5 of the modules 1 for displaying the "1" and the "11" are in the low position, the detent wheel 13 being in maximum counterclockwise rotation. In module V displaying the "12", the button is in the high position, the "12" is displayed. The flip-flop 19 is unlocked and will resume its rest position when the plunger 5 'is fully lowered, which will then allow the trigger 18 to return to its rest position to the right of the axis of the rod.
    The display cycle can then start again, periodically marking the transition from noon to midnight by a periodic change in the direction of "disappearance" of the hour display "1" to "11".
    Device for setting the time in counterclockwise mode The embodiment of a CD dial as described in FIGS. 6 to 8 using two types of monolithic modules as well as a detent wheel 13 perfectly accepts time setting in the clockwise direction, each module 1.1 ′ being designed to cooperate with an actuating device 6 according to a direction of hourly progression in accordance with the mobility of the hour wheel of a watch movement. For example, if at an hour η, n being an integer between 1 and 12, we advance 2 hours then we display all the hours from "1" to n + 2. On the other hand, if you set the time in counterclockwise mode, for example as for the change from winter time to summer time, you must go back from time n to hour n-1. If there is no passage through the "12" which controls the trigger wheel, then the time corresponding to the whole number "n" remains displayed. To avoid this drawback, the blocking mechanism presented in FIG. 6 incorporates a counterclockwise release device 16 The operation of this device 16 is illustrated in FIG. 9.
    The counterclockwise adjustment device 16 includes at one of its ends a follower contact 161 and a pusher 162 whose shape extends to the lower level of a module 1, at the other end. This device can move in translation through two flexible parallel blades 163 which connects it to the frame 2 of the dial CD. When the cam 61 of the actuating device 6 linked to the hour wheel of the watch movement comes to press on the contact 161, the device is pushed upwards, the pusher comes to lift the free end of the plate 121 of the trigger 12 triggering thus said trigger 12 which releases the pusher 5.
    This device has no influence in the normal direction of movement of the watch movement, which is clockwise. Indeed, as it is visible in FIG. 9B, during the rotation of the cam61, driven by the hour wheel, the cam 61 firstly raises the contact 161 which triggers the trigger 12, then the pusher 5 whose rise is facilitated by the trigger in the triggered state. However, when the cam 61 continues to rotate, the system goes through a state shown in FIG. 9C where the reversing lever 19 does not engage because the follower contact 161 is no longer in contact with the cam 61 while the pusher 5 is kept in its high state. After the passage of the cam 61 the pusher 5 is blocked in the high state, as it is visible in FIG. 9D. From the position shown in fig. 9D the cam 61 can rotate counterclockwise, for example to go back one or more hours. The cam 61 first pushes the pusher 5 which is already in the high state, then comes to push on the contact 161, which triggers the trigger 12 When the cam 12 continues its rotation the system goes through a state shown in fig . 9E where the reversing rocker is always triggered because the follower contact 161 is pushed by the cam 61 while the pushers, released, gradually descends following the profile of the cam. After the passage of the cam, the trigger 12 is reset and the pusher 5 remains in the low position, as can be seen in FIG. 9F.
    Counterclockwise rotation of the hour wheel thus clears the display of the hours which are touched by the cam.
    Although a preferred application of the invention relates to the field of watchmaking, it is not limited to a display of time information and can also be implemented in any field requiring the use of '' a system for displaying any information or representation in animated form.
    权利要求:
    Claims (15)
    [1]
    claims
    1. Analog display system, comprising:
    - A plurality of display modules (1,1) each comprising a fixed frame (2) and at least two display members (31,32, 33, 34, 35) substantially rigid, said display members each comprising a display portion (31a, 32a, 33a, 34a, 35a) of a pattern (M), said display portions being complementary to each other so that they form said pattern (M) in at least one relative position of said display members,
    at least one of the display members being integral and movable relative to the frame (2) by means of a deformable link (4, 7, 8) at least between a first rest position in which said display portions are distant from each other and a display position in which said display portions are counter-affixed to each other to form and display said pattern,
    the said movable display member (s) relative to the frame cooperating with an actuating pusher (5) of each module (1, 1 ′) arranged to transmit a displacement force of this display member by elastic deformation around its deformable link or links from said rest position to said display position, and
    - a reversible blocking device (9, 10, 12, 13, 17, 52, 62) of the actuating pushers (5) of the mobile display members of at least part of said display modules (1, 1 ').
    [2]
    2. Display system according to claim 1, characterized in that said display members, the frame and or the deformable links form a monolithic part.
    [3]
    3. Display system according to one of claims 1 or 2, characterized in that the reversible blocking device of the actuating pushers of the display members forms a monolithic part with said modules (1, 1 ').
    [4]
    4. Indicator display module according to claim 3, characterized in that the reversible locking device and the display modules (1, 1 ') form a monolithic multi-level assembly.
    [5]
    5. Display system according to one of the preceding claims, characterized in that the deformable links (4) consist of flexible blades (15,41, 81, 110, 181, 1215) with a width between 2 and 50 microns, the thickness of the frame (2) and of the display member (s) (3) being greater than 30 microns.
    [6]
    6. Display system according to one of the preceding claims, characterized in that said modules (1, 1 ') and the reversible blocking device consist of monocrystalline or polycrystalline silicon.
    [7]
    7. Display system according to one of claims 1 or 2, characterized in that the reversible blocking device comprises piston actuators (62) arranged to mobilize said actuating pushers (5) in response to a command d 'a control device.
    [8]
    8. Display system according to one of claims 1 or 2, characterized in that the reversible blocking device comprises blocking members (9) arranged to maintain said actuating pushers in response to a command from a device control.
    [9]
    9. Display system according to one of claims 1 to 6, characterized in that the reversible locking device comprises complementary locking members (10, 12, 13, 17, 52) arranged at least partially on the pusher d actuation (5) to maintain said actuating pusher in the display position of the display members and able to be released in response to a command from a control device.
    [10]
    10. Display system according to one of claims 1 to 9, characterized in that it comprises an actuating device (6) arranged to transmit a motor force on the actuating pusher so as to induce a displacement of the or movable display members from the rest position to the display position.
    [11]
    11. Display system according to claim 10, characterized in that the actuating device comprises a cam (61) or a lug, said actuating device being movable in rotation about an axis of rotation (A) and arranged relative to the actuating plunger so that said cam or said lug exerts in at least one angular position around the axis of rotation on the actuating plunger an effort capable of mobilizing said pusher.
    [12]
    12. Display system according to one of claims 1 to 8 and claims 10 or 11, characterized in that the actuating device (6) is also a device for controlling said reversible blocking device of the actuating pushers (5).
    [13]
    13. Timepiece characterized in that it comprises a display system according to one of claims 1 to 12.
    [14]
    14. Timepiece according to claim 13, characterized in that the actuating device (6) is kinematically linked to the hour mobile and / or the minute mobile of a watch movement.
    [15]
    15. Timepiece according to claim 14, characterized in that the display system is configured to display the hours over 12 consecutive hours and arranged in kinematic connection with the watch movement to indicate a date by successive blocking every hour full of display members of the corresponding pattern until display of the pattern "12" during which the other patterns disappear successively clockwise or counterclockwise by releasing the device for blocking said actuating pushers.









    18, '181

    CD









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    同族专利:
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    EP3579059A1|2019-12-11|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    JPH0575997B2|1989-10-17|1993-10-21|Seikosha Kk|
    CH691833A5|1997-09-25|2001-10-31|Vacheron & Constantin S A|Watch or timepiece with an original face display with an eccentric minute hand and window display for the hours leaving more space for decoration, etc. on the remaining watch face|
    CH712875A1|2016-09-05|2018-03-15|Csem Centre Suisse Delectronique Et De Microtechique Sa Rech Et Developpement|Display module comprising movable elements around deformable links, associated display system and timepiece comprising such a display system.|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    CH7402018|2018-06-08|
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