• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    The garment includes a flexible sheet support (100) having a recess (102) formed in an apparent region. The electronic module (200) is a flat module disposed on the inside of the carrier, which includes a flexible circuit supporting electronic components and a display (206). The support (100) comprises, around the recess and on its surface opposite the panel, a peripheral strip carrying a first magnetization pattern with alternating regions with a given magnetic polarity and with a reverse magnetic polarity. The module (200) has at its periphery (204) a frame of homologous dimensions carrying a second inverted magnetization pattern, conjugated with the first magnetization pattern when the module and the support are arranged vis-à-vis in the overlapping peripheral region. .
    公开号:FR3042100A1
    申请号:FR1559557
    申请日:2015-10-08
    公开日:2017-04-14
    发明作者:Olivier Levy
    申请人:Parrot Shmates；
    IPC主号:
    专利说明:

    The invention relates to the attachment of an electronic module to a flexible sheet support, in particular a support of textile material, in which a recess has been formed in an apparent region where the module is made visible.
    The electronic module is a flexible flat module, whose dimensions are slightly greater than those of the recess, and is intended to be mounted inside the garment in the region of the recess. This module carries a visible display from the outside of the garment through the recess, so as to present indications, graphics or other apparent on the garment in the same way as if they had been printed on it.
    The module being fixed from the inside, only the screen of the display is visible through the recess, the peripheral regions of the display and the rest of the module, as well as the means of fixing it to the garment, remaining hidden on the inside of the garment.
    The flexibility of the module avoids introducing too much rigidity into the region where it is attached to the garment, which could hinder the wearer of this garment.
    Note that the invention will be mainly described in the context of the fixing of such a module on a garment, but that this destination of the fastening means is not limiting, the invention being applicable both to the fixation of a module to another supple sheet support object such as bag, cap, etc.
    In the same way, the supple sheet support is not necessarily a support of textile material (fabric or mesh), but can also be a continuous structure support, for example a continuous layer support made of synthetic material, leather, etc.
    In any case, it is necessary to have a system that allows to easily attach the module to the support and, conversely, to detach it without difficulty and without risk of damaging the support.
    It is also essential that the fastening system respects the flexibility of the support and the module, so as not to introduce additional undesirable stiffness at this attachment.
    In the same vein, in order to optimize the integration of the module to the garment, the active surface of the display must be flush with the fabric of the garment over the entire periphery of the recess, which excludes fastening systems too thick and discontinuous such as snaps, etc. This flush should ideally be made within 1 mm at the garment / display junction, and this continuously on the periphery of the recess.
    In addition, in the case of a garment, the module must be separable from the support each time the garment is washed, and then put back on the clean and ironed garment. The fastening system must therefore allow these manipulations repeatedly and simply, and without risk of degradation over time or clothing or fastening means.
    It would also be desirable to have a fastening system ensuring both a self-alignment (immediate attachment to the correct position, without sliding) and a foolproof (fixing to the support always in the right direction), without the The user does not have to think about or look for placement marks.
    A hook-and-loop type fastening would make it possible to respect the flexibility of the module / garment assembly and, given its thickness, would not respect the imperative of small discontinuity at the point where the display is flush with the edge of the recess. .
    In addition, repeated use of such a fastening could damage the garment by tearing the fabric, especially for the finest fabrics. In addition, this type of attachment is difficult to use if the gripping strip extends over the entire periphery of the recess (which is desirable to prevent yawning between the module and the garment). In addition, it provides no simple means of coding to place the module and therefore the display in the right direction relative to the recess. The invention proposes a new method of attaching a flexible electronic module to a flexible sheet support which solves all of these problems.
    More specifically, the invention proposes for this purpose an assembly comprising, in a manner known in itself: a supple web support, in particular a textile support, comprising a recess formed in an apparent region; and a flat electronic module, whose peripheral contour is homologous to the contour of the recess and whose dimensions are greater than those of the recess so as to define therewith an overlapping peripheral region, this module being disposed of the inner side of the support and comprising a flexible circuit supporting electronic components and a display visible from an outer side of the support through the recess,
    In a characteristic manner of the invention, the support comprises, around the recess and on its surface facing the panel, a peripheral strip carrying a first magnetization pattern with alternately magnetized areas with a given magnetic polarity and with reverse magnetic polarity. The module comprises at its periphery a frame of homologous dimensions of the peripheral band of the support, carrying a second magnetization pattern with alternately magnetized areas with a given magnetic polarity and with a reverse magnetic polarity. The second magnetization pattern is an inverted pattern, conjugated with the first magnetization pattern when the module and the support are disposed opposite each other in the overlapping peripheral region.
    According to various advantageous subsidiary characteristics: the recess and the peripheral strip have a rectangle shape, and the support and the module carry, on at least two sides and / or on at least two adjacent vertices of the rectangle, a magnetization pattern comprising for each of these sides or vertices, at least two magnetized ranges, one with said given magnetic polarity and the other with said inverse magnetic polarity; the support and the module carry respective magnetization patterns that are not symmetrical with respect to an axis of the rectangle; the magnetized tracks of the first and second magnetization patterns each comprise a Halbach grating with a pattern of magnetized strips successively in one direction and in the other, producing an anisotropic magnetic field essentially directed towards the contact between the support and the module; the support is a woven or knitted support defining at least one predominant direction, and the direction of the magnetized strips of the magnetization patterns forms an angle of 30 ° to 60 ° with respect to said preponderant direction; - The peripheral band carrying the first magnetization pattern is a magnetized or magnetizable strip, reported by transfer on the support, or a strip formed from a magnetizable powder laminated in the thickness of the support; The magnetization of the first and second magnetization units is a magnetization with a controlled concentration of the magnetic flux capable of producing, at short or no distance, an attraction of two magnetized ranges with conjugated polarities, and a repulsion of these same ranges beyond a distance greater than a given threshold.
    An embodiment of the present invention will now be described with reference to the appended drawings in which the same references designate identical or functionally similar elements from one figure to another.
    Figure 1 is a general view of a garment incorporating a module with a visible display on the front.
    Figure 2 is a top plan view, according ll-il of Figure 3, of the flexible module considered in isolation.
    Figure 3 is an exploded sectional side view, in accordance with III-III of Figure 2, of the flexible module of Figure 2.
    Figure 4 illustrates the different pieces of fabric to be assembled for the realization of the garment of Figure 1.
    Figure 5 is a side view, exploded, of the assembly formed by the garment, the module and the means according to the invention for fixing the module to the garment.
    FIG. 6 illustrates an exemplary embodiment of the fixing means making it possible, thanks to appropriate magnetization patterns, to perform the self-alignment and foolproofing functions.
    Figure 7 illustrates the principle of a Halbach network.
    Figure 8 illustrates how the Halbach array of Figure 7 is positioned and oriented relative to the recess formed in the garment.
    Figure 9 illustrates an embodiment of fastening means with limited locking effect at a small distance between surfaces facing each other.
    An embodiment of the invention will now be described.
    In Figure 1, the reference 100 generally denotes a garment such as a T-shirt, on the front of which was formed a recess 102 to make an opening in the thickness of this T-shirt, here a rectangular opening . Advantageously, to allow sharp cutting without fraying the edge 104, this recess is made by a technique such as laser cutting, the garment being in this case made of a synthetic material such as polyamide or acrylic.
    A flexible electronic module 200 (described in greater detail, in isolation, in FIGS. 2 and 3) is mounted at the location of this recess 102, on the inside of the garment. The outer peripheral edge 202 of the module 200 has a shape similar to that of the recess 102, with external dimensions slightly greater, so as to provide an inner side of the garment, around the recess 102, an overlapping peripheral region 204 of width substantially constant.
    The electronic module 200 can in particular support a display 206 visible from the outside, through the recess 102, this display having dimensions identical to those of the recess 102 or very slightly greater so that only the active surface of the 206 is visible through the recess 102.
    This display 206 makes it possible to display on the front of the garment, as desired according to the programming of the module, messages, logos, graphic signs, etc., in the same way as if these indications had been printed on the front of the garment. , especially in the case of an EPD display (e-Paper Displaÿ) whose reflective properties are quite similar to those of a paper or a fabric.
    Figures 2 and 3 illustrate, respectively in plan seen from above and in exploded section, the electronic module 200.
    This includes a flexible printed circuit board 208 supporting batteries 210 making the module stand-alone, as well as various components 212 such as: microcontroller, display controller, flash memory, MEMS-type motion sensor or other, low energy Bluetooth radio interface circuit BLE, etc., making it possible to perform all the electronic functions of the module 200.
    The flexible circuit board 208 is connected by a flexible connector 214 to the display 206, the flexible connector can also support an RF antenna such as a Bluetooth antenna 216.
    Regarding the display 206, it consists of a flexible screen for example of the "e-Paper" type, which is a technology providing both a very small thickness (of the order of 0.8 mm), a very good flexibility that allows to deform the screen without risk of damage, and low consumption, maintaining a still image does not require energy input.
    On the opposite side to the display 206, the module 200 comprises a foam back 218 comprising recesses 220, 222 housing the cells 210 and the components 212.
    Once these various elements are assembled, there is an electronic module 200 having sufficient flexibility not to hinder the user when the module is mounted on the garment, thin (less than 3 mm) and low weight: lower at 80 g, preferably about 50 g for a typical 125 x 160 mm module supporting a 7 inch (178 mm) display 206.
    The module also comprises, on the side of the display 206 and around it, a magnetic peripheral frame 230 which will allow the attachment of the module 200 to the garment as will be described below. The peripheral frame 230 is for example fixed around the display 206 by gluing on the foam back 218 by means of a suitable adhesive. The magnetic peripheral frame 230 has a thickness of the same order as that of the display 206, so that its apparent outer surface, turned towards the front piece 106 of the garment, comes flush with the display 206 and thus ensures optimum continuity, the least perceptible possible, between the different constituent elements.
    4 illustrates the different pieces of fabric to be assembled for the realization of the garment 100. This is made from a pattern comprising a front piece 106 in which has been formed the recess 102, a back piece 108 , and a front liner 110 to prevent direct contact of the module 200 with the skin of the user when this module is mounted on the front piece 106. These different parts are made from a textile web material, woven or knitted, prepared in a conventional manner.
    Figure 5 illustrates an exploded view of the assembly formed by: the garment 100 of Figure 4 with its various parts 106, 108, 110; the electronic module 200; and the magnetic means 130, 230 for fastening the module 200 to the garment 100. In this FIG. 5, the respective proportions between the thicknesses of the different elements have not been respected, in order to improve their readability.
    The module 200 is, as indicated, provided with a magnetic peripheral frame 230, carrying, on the side facing the inner face of the front piece 106 of the garment 100, a first predetermined magnetization pattern. The garment 100 bears, for its part, on the inner face of the front piece 106, around the recess 102, a magnetic peripheral band 130 carrying a second magnetization pattern, in inverse of the magnetization pattern of the peripheral frame 230 of the module 200.
    FIG. 6 illustrates examples of magnetization patterns respectively formed on the peripheral band 130 of the garment and on the peripheral frame 230 of the module, these respective patterns being inverted patterns, conjugated together when the module 200 and the garment 100 are arranged in vis-à-vis with the magnetic frame 230 of the module pressed against the magnetic peripheral band 130 of the garment. By "inversion" of the magnetization pattern will be understood an inversion of magnetic polarity south / north. By "conjugate units" it will be understood that one point of the magnetic pattern of one of the elements 130, 230 is magnetized "south" when the homologous point of the other element 230, 130 vis-a-vis is magnetized "North" and vice versa This configuration of the respective magnetization patterns makes it possible to achieve a magnetic attraction adhesion between the two elements 130, 230 when they are pressed against each other.
    In FIG. 6, the two different south / north polarizations are illustrated in the form of hatches, respectively simple and crossed, so as to distinguish them.
    To ensure the self-alignment and polarization function, the magnetization patterns are, for example, as illustrated in FIG. 3, alternating patterns 132, 132 'with 232, 232' and / or 134, 134 'with 234, 234'. on respective halves of each of the sides of the rectangular shape of the peripheral band 130 and the peripheral frame 230.
    This configuration makes it possible in particular to ensure a self-alignment of the two elements 130 and 230 with respect to each other, the mere fact of approaching them causing an adjustment of their respective positions and therefore thereby centering the module 200, and therefore of the display 206, with respect to the recess 102.
    A coding function can be provided, for example, by providing magnetic patterns 136, 136 'with 236, 236', and / or 138, 138 'with 238, 238' in opposite corners which are not symmetrical with respect to axis Δ of the rectangle, but symmetrical with respect to the center C of this same rectangle. For example, there are two north / south bands oriented at one vertex of the rectangle in the length direction, while on the adjacent vertex they are oriented in the width direction.
    We will now expose various ways in which the magnetic peripheral band 130 of the garment 100 can be made, this can be done in different ways.
    A first technique implements a rolling process. In this context, it is a complete piece of fabric that is laminated, to be then cut (outer contour of the pattern and recess 102) for the final embodiment of the garment in a subsequent step. The prior rolling produces a fabric, one side of which has the fiber of the textile and whose opposite face is magnetizable. This technique can be used in particular for relatively thick fabrics, materials such as leather, etc.
    Rolling implements a powder comprising ferromagnetic particles of high coercivity, mainly consisting of ferric oxide, mixed with a binder such as chlorinated polyethylene or a thermoplastic polymer in a proportion of the order of 20%, to confer the desired flexibility to the finished product. This powder is laminated with the fabric, which includes a synthetic fiber (nylon, acrylic, etc.) and non-stretch (no elastane). The assembly passes after rolling via a conveyor through a magnetization station producing a strong magnetic field conferring on the ferric surface its magnetic properties.
    Advantageously, as illustrated in FIG. 7, the magnetization is carried out so as to produce a Halbach grating, which is in the form of an alternation of alternately magnetized strips north and south, the width of the strips being of the order of 5 to 6. mm. The ferric surface then produces a directional magnetic field and anisotropic, that is to say that the magnetic field is concentrated on the side of the ferric face and virtually zero on the opposite side of the fabric.
    Once this magnetization is achieved, the piece of fabric is cut and recessed, for example by laser cutting, the dimensions and shape of the recess corresponding to those of the display.
    Figure 8 illustrates a technique to overcome the relative fragility of laminated fabric after completion of the Halbach network.
    Indeed, it is found that the laminated and magnetized surface has a fragility in the direction D (Figure 7) alternating magnetization bands, with a risk of tear initiation at this location in the direction of the bands.
    As illustrated in FIG. 8, in order to overcome this drawback, the recess 102 is made at an angle to the Halbach grating, that is to say that the main direction Δ of the recess is an angle with respect to the direction D of the recesses. alternating magnetization strips. This angle is typically 30 ° to 60 °, preferably about 45 °. This bias relative to the weft or mesh direction of the fabric provides significantly increased strength, with a much lower risk of breaking or cracking of the magnetized ferric layer on the back of the fabric.
    A second technique for producing the magnetic peripheral band 130 consists in transferring a previously constituted magnetic tape, which is then attached to the back of the fabric. This technique can be used particularly advantageously for the thinnest and most flexible fabrics.
    The frame-shaped strip should be sufficiently thin (typical thickness 0.25 mm to 0.50 mm) so that the assembly retains its flexibility without increasing its thickness (less than 1 mm in total) because the addition of the magnetic tape.
    If the fabric as well as the magnetic tape each comprise at least 15% of thermoplastic fiber, the two elements can be joined together by ultrasonic welding techniques. Otherwise, the transfer of the magnetic tape on the fabric will be by inserting between these two elements a hot melt glue that will mix with the fabric fiber when passing under a heating press.
    As in the previous case, it is advantageous to make the magnetic tape with magnetization according to a Halbach network, and whose lines of force of the network have a bias relative to the axes of the peripheral band.
    Figure 9 illustrates an improvement that can be implemented in addition to the various techniques outlined above.
    This improvement aims to overcome a drawback that, while it is advantageous to have a magnetic field strong enough to ensure good resistance of the module to the garment, too high a field may damage or tear the fabric of the garment to moment of withdrawal, provided that the fabric is fragile.
    To reduce this risk, at the time of magnetization of the elements 130, 230 is provided to implement a technique of controlled concentration of magnetic flux in the thickness of the magnetizable layer such as that described in US 8 937 521 A. This type of magnetization provides, as shown in Figure 9, a particular locking effect allowing the two surfaces facing to strongly adhere to a short programmable distance d (of the order of 3 mm), but to repel from that the interval separating them is greater than this same distance. In other words, the distance d corresponds to an inversion between the phenomena of attraction and repulsion, which makes it possible to separate more easily the module and the garment, without applying to the latter too many constraints which could in the long run a tearing.
    权利要求:
    Claims (9)
    [1" id="c-fr-0001]
    1. An assembly, in particular a garment, comprising: a flexible sheet support (100), in particular a textile support, comprising a recess (102) formed in an apparent region; and a flat electronic module (200) whose peripheral contour (202) is homologous to the contour of the recess (102) and whose dimensions are greater than those of the recess so as to define therewith a recess an overlapping peripheral region (204), which module is disposed on an inner side of the support and comprises a flexible circuit (208) supporting electronic components (212) and a display (206) visible from an outer side of the carrier through the recess, characterized in that: - the support (100) comprises, around the recess and on its surface vis-à-vis the panel, a peripheral strip (130) carrying a first magnetization pattern with magnetized areas (132, 134, 136, 138) alternatively with a given magnetic polarity and with a reverse magnetic polarity; and - the module (200) comprises at its periphery a frame (230) of dimensions that are homologous to the peripheral band of the support, carrying a second magnetization pattern with magnetized areas (232, 234, 236, 238) alternatively with a polarity given magnet and with a reverse magnetic polarity, the second magnetization pattern being an inverted pattern, conjugate of the first magnetization pattern when the module and the support are arranged vis-a-vis in the overlapping peripheral region.
    [0002]
    2. The assembly of claim 1, wherein the recess and the peripheral strip have a rectangle shape, and wherein the support and the module carry, on at least two sides of the rectangle, a magnetization pattern comprising, for each of these sides, at least two magnetized areas (132, 134; 232, 234), one with said given magnetic polarity and the other with said reverse magnetic polarity.
    [0003]
    3. The assembly of claim 1, wherein the recess and the peripheral strip have a rectangle shape, and wherein the support and the module carry, on at least two adjacent vertices of the rectangle, a magnetization pattern comprising, for each of these vertices, at least two magnetized ranges (136, 138; 236, 238), one with said given magnetic polarity and the other with said reverse magnetic polarity.
    [0004]
    4. The assembly of claim 2 or 3, wherein the support and the module carry respective magnetization patterns unsymmetrical with respect to an axis (Δ) of the rectangle.
    [0005]
    5. The assembly of claim 1, wherein the magnetized ranges of the first and second magnetization patterns each comprise a Halbach array with a configuration of magnetized bands successively in one direction and the other, producing an anisotropic magnetic field. essentially directed towards the contact between the support and the module.
    [0006]
    6. The assembly of claim 5, wherein the support is a woven or knitted support defining at least one preponderant direction (Δ), and wherein the direction (D) of the magnetic strips of the magnetization patterns forms an angle of ° at 60 ° with respect to said preponderant direction (Δ).
    [0007]
    7. The assembly of claim 1, wherein the peripheral band bearing the first magnetization pattern is a magnetized or magnetizable strip (130), reported by transfer on the support.
    [0008]
    8. The assembly of claim 1, wherein the peripheral band carrying the first magnetization pattern is a strip formed from a magnetizable powder laminated in the thickness of the support.
    [0009]
    9. The assembly of claim 1, wherein the magnetization of the first and second magnetization units is a magnetization with a controlled concentration of the magnetic flux capable of producing, at short or no distance, an attraction of two magnetized areas with conjugated polarities. and a repulsion of these same ranges beyond a distance greater than a given threshold (ci).
    类似技术:
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    同族专利:
    公开号 | 公开日
    EP3153045B1|2018-03-07|
    FR3042100B1|2017-12-08|
    US10188155B2|2019-01-29|
    EP3153045B8|2019-02-20|
    EP3153045A1|2017-04-12|
    US20170099885A1|2017-04-13|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
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    DE29915010U1|1999-08-27|2000-03-09|Funke Dieter|Display device and item of clothing equipped with the display device|
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    法律状态:
    2016-10-20| PLFP| Fee payment|Year of fee payment: 2 |
    2017-04-14| PLSC| Publication of the preliminary search report|Effective date: 20170414 |
    2017-10-19| PLFP| Fee payment|Year of fee payment: 3 |
    2018-10-19| PLFP| Fee payment|Year of fee payment: 4 |
    2020-10-16| ST| Notification of lapse|Effective date: 20200910 |
    优先权:
    申请号 | 申请日 | 专利标题
    FR1559557A|FR3042100B1|2015-10-08|2015-10-08|CLOTHES COMPRISING A REMOVABLE ELECTRONIC DISPLAY MODULE FIXED TO THE GARMENT BY SOFT MAGNETIC MEANS.|FR1559557A| FR3042100B1|2015-10-08|2015-10-08|CLOTHES COMPRISING A REMOVABLE ELECTRONIC DISPLAY MODULE FIXED TO THE GARMENT BY SOFT MAGNETIC MEANS.|
    EP16190911.4A| EP3153045B8|2015-10-08|2016-09-27|Clothing comprising a removable electronic display module, fixed at clothing by flexible magnetic means|
    US15/279,311| US10188155B2|2015-10-08|2016-09-28|Garment comprising a module with a removable electronic display, fastened to the garment through supple magnetic means|
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