EP0204050B1 - Electric or electronic control keyboards - Google Patents

Electric or electronic control keyboards Download PDF

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Publication number
EP0204050B1
EP0204050B1 EP19850401081 EP85401081A EP0204050B1 EP 0204050 B1 EP0204050 B1 EP 0204050B1 EP 19850401081 EP19850401081 EP 19850401081 EP 85401081 A EP85401081 A EP 85401081A EP 0204050 B1 EP0204050 B1 EP 0204050B1
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EP
European Patent Office
Prior art keywords
keyboard
case
fact
wall
contacts
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
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EP19850401081
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German (de)
French (fr)
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EP0204050A1 (en
Inventor
Bernard Danglot
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Individual
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Individual
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Publication date
Priority to FR8319245A priority Critical patent/FR2556127B1/en
Application filed by Individual filed Critical Individual
Priority to EP19850401081 priority patent/EP0204050B1/en
Priority to DE8585401081T priority patent/DE3576879D1/en
Publication of EP0204050A1 publication Critical patent/EP0204050A1/en
Application granted granted Critical
Publication of EP0204050B1 publication Critical patent/EP0204050B1/en
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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H36/00—Switches actuated by change of magnetic field or of electric field, e.g. by change of relative position of magnet and switch, by shielding
    • H01H36/0006—Permanent magnet actuating reed switches
    • H01H36/0066—Permanent magnet actuating reed switches magnet being removable, e.g. part of key pencil
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2239/00—Miscellaneous
    • H01H2239/038—Anti-vandalism

Definitions

  • the present invention relates to keyboards for electrical or electronic controls.
  • the keyboards currently in use include keys directly accessible to the user, who can touch with the finger such or such key opening or closing such or such circuit.
  • keys directly accessible to the user, who can touch with the finger such or such key opening or closing such or such circuit.
  • digiclefs used in particular to form a code provided in advance (but which may be periodically modified) tolerating the opening of a door, or another operation.
  • the “digidefs” have improved security in buildings, and their use is becoming general, but their installation remains expensive.
  • the invention which will be described below, is applicable not to "Digiclefs", taken as an example, but also to keyboards.
  • the keypad currently in service for opening the doors essentially consists of a box, the cover of which includes lights, mechanical keys passing through or accessible through the lights, and an electrical or electronic device closing a circuit when the code is properly form.
  • each key controls a switch whose contacts are fragile.
  • keyboards have already been constructed with contacts contained in sealed bulbs, for example those known under the name "ILS " .
  • the axes of the bulbs are parallel to the cover of the box, which causes a significant size and said bulbs are controlled by keys on which the user must properly press.
  • the visible signs, playing the role of the keys must be sufficiently spaced to avoid that the approach of a magnet influences neighboring contacts, and therefore to avoid risks of command errors.
  • these consoles are not used for the control of safety devices. They are relatively large, and used as a desk by one or more selected people who know how it works, such as directors, department heads, teachers. These keys are necessarily accessible from the outside and susceptible to vandalism. The safety of the device itself cannot be guaranteed due to this external accessibility.
  • the present invention aims to remedy these drawbacks.
  • the invention as characterized in the claims, solves the problem of creating a keyboard usable for any public, for the formation of codes, in order to control a security device, such as that tolerant or prohibiting the opening of a door.
  • the subject of the invention is a keyboard of the aforementioned type comprising a box containing a device comprising bulbs with contact blades sensitive to a magnetic field caused by a removable magnet presented externally to the box and a panel or wall which closes the opening of the box and has dormers and the solid part of which is made of a material which does not allow the magnetic field to pass, under each dormer being arranged the blades of a bulb so as to be actuable under the effect of the magnetic field caused by the '' removable magnet only when presented in front of the skylight, outside the box, the bulbs being arranged in the box perpendicular to the skylights of the wall, the axis of each group of blades coinciding approximately with the normal to the plane of the skylight .
  • This keyboard is characterized, according to the present invention, by the fact that, in the case where it allows the formation of electrical control codes, the bulbs are mounted between two shelves of insulating material, provided with printed circuits forming a chassis and electrically connecting the blades.
  • the bulbs with contact blades consist of a single bulb provided with several pairs of contact blades, each pair of contact blades being disposed facing a determined skylight and having their axis coinciding approximately with the normal to the plane of the skylight considered.
  • the wall is formed by a plate or a sheet of steel. It can be fixed externally on the edge of the opening, and form a cover for the box.
  • this wall is disposed inside the opening and fixed to the face, external or internal, of the tablet.
  • the front face of the box is protected by a plate made of a material allowing the magnetic field to pass, and constituting the cover or double cover.
  • This plate may in particular be made of safety glass.
  • the front face of the box is provided with a self-adhesive sheet of a material allowing the magnetic field to pass, so that the entire keyboard can be glued to the rear part of an existing window.
  • the wall is fixed on the internal face of a self-adhesive sheet of a material allowing the magnetic field to pass, and provided with a numbering of the dormer windows of the wall so that the entire keyboard can be fixed on the rear side of an existing window.
  • Figure 2 shows the opening of the box obstructed by a wall 2 placed externally on its edge.
  • This wall 2 is constituted by a rigid panel forming a cover and comprising the orifices 3 to 12, it is further protected by a glass plate 13 glued or fixed to it by any known means.
  • the circular holes 3 to 12 are visible through the plate 13 and are called dormers.
  • each skylight is fixed a known bulb 14 with its blades 15, 16 which can touch or move away under the effect of a magnetic field.
  • These bulbs can be arranged, depending on the model, parallel to the cover, or perpendicularly. In the latter case, the depth of the box must be appreciably greater than in the first case, but on the other hand the space requirement on the front is much less.
  • the diameter of the openings 3 to 12 is relatively small: a miniature keyboard is thus obtained.
  • the example given illustrates this case and we see that the axes of the bulbs coincide with those of the skylights.
  • the bulbs are mounted between two shelves 17, 19 forming a frame. These tablets are made of a material that does not conduct electricity.
  • These tablets 17, 19 have printed circuits 18, 20 to which are connected the wires which exit from the ends of the bulbs.
  • the chassis and its bulbs are fixed in the box by usual means.
  • the obstructive wall outside the opening instead of placing the obstructive wall outside the opening, as a cover panel, it can be placed inside.
  • the panel 2 is removed and replaced by a metal sheet 2 'bonded to the external or internal face of the tablet 17, obviously with the orifices necessary for the proper functioning of the device.
  • it is exclusively the glass plate 13 which protects the box and its contents.
  • bulbs 14 with two blades 15, 16, one per skylight we could replace them with a single bulb containing as many pairs of blades as skylights, and similarly arranged under them.
  • the protective plate 13 has been specially cut to the size of the box 1 attached to it as a cover.
  • a keyboard is usable in the usual way, that is to say placed outside the trunk or the building to be opened.
  • Such a keyboard can be applied behind a window, and therefore inside a safe or a building to be protected, including the keyboard.
  • the window 23 of the door (or other window) plays the role of the plate 13.
  • the front face of the box 1 (without plate 13) is provided with a self-adhesive sheet 22 on its two faces made of a material allowing the magnetic field to pass through well, so that the entire keyboard can be glued on the rear face of the existing window 23.
  • a self-adhesive sheet 22 on its two faces made of a material allowing the magnetic field to pass through well, so that the entire keyboard can be glued on the rear face of the existing window 23.
  • the wall 2 can be in the form of a panel (Fig. 1) or a sheet 2 'glued to the shelf 17 (Fig.
  • sheet 22 can be provided with a numbering of the skylights, perfectly visible from the outside.
  • the invention allows the manufacture and use of keyboards having a varied number of skylights; for example three in simple cases to more than one hundred in complex cases.
  • the adhesive sheet 22 can be replaced by any other means of fixing the box 1 to the window 23.
  • the keyboard can also be fixed behind an opaque wall allowing the magnetic flux to pass through it.
  • This plate can be of any type, such as for example constituting the leaf of a door, a building or furniture. In this case the keyboard is not only protected, but equal ment invisible from the outside, and therefore the very existence of said keyboard can only be revealed to people who have to use it.
  • a keyboard as described above is thus capable of ensuring not only the security of the building or of the piece of furniture in which it is placed, but also of ensuring its self-protection.

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  • Input From Keyboards Or The Like (AREA)
  • Push-Button Switches (AREA)

Description

La présente invention est relative aux claviers pour commandes électriques ou électroniques.The present invention relates to keyboards for electrical or electronic controls.

Les claviers actuellement en usage comportent des touches directement accessibles à l'utilisateur, lequel peut toucher du doigt telle ou-telle touche ouvrant ou fermant tel ou tel circuit. Parmi les claviers les plus connus, on peut citer ceux dénommés « digiclefs » utilisés notamment pour former un code prévu à l'avance (mais susceptible d'être modifié périodiquement) tolérant l'ouverture d'une porte, ou une autre opération. Les « digidefs » ont amélioré la sécurité dans les immeubles, et leur emploi se généralise, mais leur mise en place reste onéreuse. L'invention qui sera décrite ci-après, est applicable non aux « Digiclefs », pris comme exemple, mais également aux claviers.The keyboards currently in use include keys directly accessible to the user, who can touch with the finger such or such key opening or closing such or such circuit. Among the most well-known keyboards, mention may be made of those called “digiclefs” used in particular to form a code provided in advance (but which may be periodically modified) tolerating the opening of a door, or another operation. The “digidefs” have improved security in buildings, and their use is becoming general, but their installation remains expensive. The invention which will be described below, is applicable not to "Digiclefs", taken as an example, but also to keyboards.

Le clavier actuellement en service pour l'ouverture des portes sont essentiellement constitués d'une boîte dont le couvercle comporte des lumières, des touches mécaniques traversant ou accessibles à travers les lumières, et un dispositif électrique ou électronique fermant un circuit lorsque le code est convenablement formé. En fait, chaque touche commande un interrupteur dont les contacts sont fragiles. Pour éviter cet inconvénient on a déjà construit des claviers avec des contacts contenus dans des ampoules étanches, par exemple celles connues sous la dénomination « ILS ". Dans ce cas, les axes des ampoules sont parallèles au couvercle de la boîte, ce qui provoque un encombrement non négligeable et lesdites ampoules sont commandées par des touches sur lesquelles l'usager doit convenablement appuyer. On connaît aussi le document FR-A-2.089.689 déposé le 15 avril 1979, intitulé « panneau de commande et décrivant des contacts à lames situés sur la face interne d'un panneau en matière non magnétique, et des signes visibles sur sa face externe indiquant les zones sensibles correspondant aux contacts qui seront fermés lorsqu'un aimant sera placé par l'utilisateur sur la face externe en regard des dites zones. Les signes visibles, jouant le rôle des touches doivent être suffisamment espacés pour éviter que l'approche d'un aimant influence des contacts voisins, et donc pour éviter des risques d'erreurs de commandes. Malgré l'éloignement des contacts entre eux, les pupitres de ce type ne sont pas utilisés pour la commande de dispositifs de sécurité. Ils sont de relatives grandes dimensions, et utilisés comme pupitre par une ou plusieurs personnes sélectionnées et en connaissant bien le fonctionnement, telles que directeurs, chefs de services, professeurs. Ces touches sont forcément accessibles de l'extérieur et susceptibles d'actions de vandalisme. La sécurité de l'appareil lui-même ne peut pas être assurée en raison de cette accessibilité extérieure.The keypad currently in service for opening the doors essentially consists of a box, the cover of which includes lights, mechanical keys passing through or accessible through the lights, and an electrical or electronic device closing a circuit when the code is properly form. In fact, each key controls a switch whose contacts are fragile. To avoid this drawback, keyboards have already been constructed with contacts contained in sealed bulbs, for example those known under the name "ILS " . In this case, the axes of the bulbs are parallel to the cover of the box, which causes a significant size and said bulbs are controlled by keys on which the user must properly press.We also know the document FR-A-2,089,689 filed April 15, 1979, entitled "control panel and describing blade contacts located on the internal face of a panel made of non-magnetic material, and visible signs on its external face indicating the sensitive zones corresponding to the contacts which will be closed when a magnet is placed by the user on the external face opposite said zones The visible signs, playing the role of the keys must be sufficiently spaced to avoid that the approach of a magnet influences neighboring contacts, and therefore to avoid risks of command errors. Despite the distance between the contacts, these consoles are not used for the control of safety devices. They are relatively large, and used as a desk by one or more selected people who know how it works, such as directors, department heads, teachers. These keys are necessarily accessible from the outside and susceptible to vandalism. The safety of the device itself cannot be guaranteed due to this external accessibility.

La présente invention a pour but de remédier à ces inconvénients. L'invention, telle qu'elle est caractérisée dans les revendications, résout le problème consistant à créer un clavier utilisable pour n'importe quel public, pour la formation de codes, en vue de commander un dispositif de sécurité, tel que celui tolérant ou interdisant l'ouverture d'une porte.The present invention aims to remedy these drawbacks. The invention, as characterized in the claims, solves the problem of creating a keyboard usable for any public, for the formation of codes, in order to control a security device, such as that tolerant or prohibiting the opening of a door.

L'invention a pour objet un clavier du type précité comportant une boîte contenant un dispositif comprenant des ampoules à lames de contact sensibles à un champ magnétique provoqué par un aimant amovible présenté extérieurement à la boîte et un panneau ou paroi qui ferme l'ouverture de la boîte et comporte des lucarnes et dont la partie pleine est constituée en une matière ne laissant pas passer le champ magnétique, sous chaque lucarne étant disposées les lames d'une ampoule de façon à être actionnables sous l'effet du champ magnétique provoqué par l'aimant amovible uniquement lorsqu'il est présenté devant la lucarne, extérieurement à la boîte, les ampoules étant disposées dans la boîte perpendiculairement aux lucarnes de la paroi, l'axe de chaque groupe de lames coïncidant approximativement avec la normale au plan de la lucarne. Ce clavier est caractérisé, selon la présente invention, par le fait que, dans le cas où il permet la formation de codes de commandes électriques, les ampoules sont montées entre deux tablettes en matière isolante, munies de circuits imprimés formant châssis et reliant électriquement les lames.The subject of the invention is a keyboard of the aforementioned type comprising a box containing a device comprising bulbs with contact blades sensitive to a magnetic field caused by a removable magnet presented externally to the box and a panel or wall which closes the opening of the box and has dormers and the solid part of which is made of a material which does not allow the magnetic field to pass, under each dormer being arranged the blades of a bulb so as to be actuable under the effect of the magnetic field caused by the '' removable magnet only when presented in front of the skylight, outside the box, the bulbs being arranged in the box perpendicular to the skylights of the wall, the axis of each group of blades coinciding approximately with the normal to the plane of the skylight . This keyboard is characterized, according to the present invention, by the fact that, in the case where it allows the formation of electrical control codes, the bulbs are mounted between two shelves of insulating material, provided with printed circuits forming a chassis and electrically connecting the blades.

Selon un mode de réalisation préférée de l'invention, les ampoules à lames de contact sont constituées par une seule ampoule munie de plusieurs paires de lames de contact, chaque paire de lames de contact étant disposée face à une lucarne déterminée et ayant leur axe coïncidant approximativement avec la normale au plan de la lucarne considérée.According to a preferred embodiment of the invention, the bulbs with contact blades consist of a single bulb provided with several pairs of contact blades, each pair of contact blades being disposed facing a determined skylight and having their axis coinciding approximately with the normal to the plane of the skylight considered.

Avantageusement, la paroi est constituée par une plaque ou une feuille d'acier. Elle peut être fixée extérieurement sur la bordure de l'ouverture, et former couvercle pour la boîte.Advantageously, the wall is formed by a plate or a sheet of steel. It can be fixed externally on the edge of the opening, and form a cover for the box.

Selon un autre mode de réalisation, cette paroi est disposée à l'intérieur de l'ouverture et fixée sur la face, externe ou interne, de la tablette.According to another embodiment, this wall is disposed inside the opening and fixed to the face, external or internal, of the tablet.

De préférence, la face avant de la boîte est protégée par une plaque en une matière laissant passer le champ magnétique, et constituant le couvercle ou double couvercle. Cette plaque peut être notamment en verre de sécurité.Preferably, the front face of the box is protected by a plate made of a material allowing the magnetic field to pass, and constituting the cover or double cover. This plate may in particular be made of safety glass.

Avantageusement, la face avant de la boîte est munie d'une feuille autocollante en une matière laissant passer le champ magnétique, de telle manière que l'ensemble du clavier puisse être collé sur la partie arrière d'une vitre existante.Advantageously, the front face of the box is provided with a self-adhesive sheet of a material allowing the magnetic field to pass, so that the entire keyboard can be glued to the rear part of an existing window.

De préférence, la paroi est fixée sur la face interne d'une feuille autocollante en une matière laissant passer le champ magnétique, et pourvu d'une numérotation des lucarnes de la paroi de telle manière que l'ensemble du clavier puisse être fixé sur la face arrière d'une vitre existante.Preferably, the wall is fixed on the internal face of a self-adhesive sheet of a material allowing the magnetic field to pass, and provided with a numbering of the dormer windows of the wall so that the entire keyboard can be fixed on the rear side of an existing window.

Pour mieux faire comprendre l'invention, il est donné ci-après un exemple de réalisation en référence aux dessins annexés :

  • Figure 1 est une vue en perspective d'ensemble,
  • Figure 2 est une coupe schématisée suivant II-II de la figure 1,
  • Figure 3 est une coupe schématique d'un clavier collé sur une vitre.
To better understand the invention, it is given below an exemplary embodiment with reference to the accompanying drawings:
  • Figure 1 is an overall perspective view,
  • FIG. 2 is a diagrammatic section along II-II of FIG. 1,
  • Figure 3 is a schematic section of a keyboard glued to a window.

La figure 2 montre l'ouverture de la boîte obstruée par une paroi 2 placée extérieurement sur sa bordure. Cette paroi 2 est constituée par un panneau rigide formant couvercle et comportant les orifices 3 à 12, elle est en outre protégée par une plaque de verre 13 collée ou fixée sur elle par tout moyen connu. Les orifices circulaires 3 à 12 sont visibles à travers la plaque 13 et sont appelés lucarnes.Figure 2 shows the opening of the box obstructed by a wall 2 placed externally on its edge. This wall 2 is constituted by a rigid panel forming a cover and comprising the orifices 3 to 12, it is further protected by a glass plate 13 glued or fixed to it by any known means. The circular holes 3 to 12 are visible through the plate 13 and are called dormers.

A l'intérieur de la boîte 1, sous chaque lucarne, se trouve fixée une ampoule 14 connue avec ses lames 15, 16 pouvant se toucher ou s'éloigner sous l'effet d'un champ magnétique. Ces ampoules peuvent être disposées, suivant les modèles, parallèlement au couvercle, ou perpendiculairement. Dans ce dernier cas, la profondeur de la boîte doit être sensiblement plus grande que dans le premier cas, mais par contre l'encombrement en façade est bien moindre. Le diamètre des orifices 3 à 12 est relativement faible : on obtient ainsi un clavier miniaturisé. L'exemple donné illustre ce cas et l'on voit que les axes des ampoules coïncident avec ceux des lucarnes. Le montage des ampoules est effectué entre deux tablettes 17, 19 formant châssis. Ces tablettes sont en une matière ne conduisant pas l'électricité.Inside the box 1, under each skylight, is fixed a known bulb 14 with its blades 15, 16 which can touch or move away under the effect of a magnetic field. These bulbs can be arranged, depending on the model, parallel to the cover, or perpendicularly. In the latter case, the depth of the box must be appreciably greater than in the first case, but on the other hand the space requirement on the front is much less. The diameter of the openings 3 to 12 is relatively small: a miniature keyboard is thus obtained. The example given illustrates this case and we see that the axes of the bulbs coincide with those of the skylights. The bulbs are mounted between two shelves 17, 19 forming a frame. These tablets are made of a material that does not conduct electricity.

Ces tablettes 17, 19 comportent des circuits imprimés 18, 20 auxquels sont reliés les fils qui sortent des extrémités des ampoules. Le châssis et ses ampoules sont fixés dans la boîte par des moyens usuels.These tablets 17, 19 have printed circuits 18, 20 to which are connected the wires which exit from the ends of the bulbs. The chassis and its bulbs are fixed in the box by usual means.

Suivant une variante, au lieu de placer la paroi obstructive à l'extérieur de l'ouverture, comme panneau-couvercle, on peut la placer à l'intérieur. Dans ce cas, le panneau 2 est supprimé et remplacé par une feuille métallique 2' collée sur la face externe ou interne de la tablette 17, évidemment avec les orifices nécessaires au bon fonctionnement de l'appareil. Dans cet exemple de réalisation, c'est exclusivement la plaque en verre 13 qui protège la boîte et son contenu.According to a variant, instead of placing the obstructive wall outside the opening, as a cover panel, it can be placed inside. In this case, the panel 2 is removed and replaced by a metal sheet 2 'bonded to the external or internal face of the tablet 17, obviously with the orifices necessary for the proper functioning of the device. In this exemplary embodiment, it is exclusively the glass plate 13 which protects the box and its contents.

Lorsqu'on approche le pôle Nord d'un petit barreau 21 aimanté de la lucarne 3, le champ magnétique passe uniquement par cette lucarne. La partie pleine de la paroi (panneau 2 ou feuille 2'), en matière ne laissant pas passer le champ magnétique, empêche toute influence de l'aimant 21 sur les autres ampoules, et l'on peut dire que la lucarne canalise le champ magnétique. Ce champ peut être recueilli par une plaquette métallique prévue dans l'ampoule, et qui le conduit à proximité des lames 15, 16. Les lames 15, 16 se trouvent ainsi attirées l'une contre l'autre et ferment un contact pendant toute la durée de présentation convenable de l'aimant devant la lucarne.When approaching the North Pole of a small bar 21 magnetized from the skylight 3, the magnetic field passes only through this skylight. The solid part of the wall (panel 2 or sheet 2 '), made of material which does not allow the magnetic field to pass, prevents any influence of the magnet 21 on the other bulbs, and it can be said that the skylight channels the field magnetic. This field can be collected by a metal plate provided in the bulb, and which leads it near the blades 15, 16. The blades 15, 16 are thus attracted against each other and close a contact during the whole suitable presentation time of the magnet in front of the window.

En présentant cet aimant 21 successivement devant différentes lucarnes choisies volontairement, on agit exactement comme si on appuyait sur les différentes touches d'un clavier, et on peut ainsi former le code désiré permettant de fermer le circuit de commande d'un moteur ou autre. On peut par exemple autoriser l'ouverture d'une porte.By presenting this magnet 21 successively in front of different skylights chosen voluntarily, one acts exactly as if one pressed on the various keys of a keyboard, and one can thus form the desired code allowing to close the control circuit of a motor or other. We can for example authorize the opening of a door.

Dans les deux exemples représentés on voit des ampoules 14 à deux lames 15, 16, une par lucarne, mais on pourrait les remplacer par une seule ampoule contenant autant de paire de lames que de lucarnes, et disposées pareillement sous elles.In the two examples shown we see bulbs 14 with two blades 15, 16, one per skylight, but we could replace them with a single bulb containing as many pairs of blades as skylights, and similarly arranged under them.

Dans les figures 1 et 2, la plaque de protection 13 a été découpée spécialement à la dimension de la boîte 1 fixée dessus comme couvercle. Un tel clavier est utilisable de façon usuelle, c'est-à-dire placé à l'extérieur du coffre ou de l'immeuble à ouvrir.In Figures 1 and 2, the protective plate 13 has been specially cut to the size of the box 1 attached to it as a cover. Such a keyboard is usable in the usual way, that is to say placed outside the trunk or the building to be opened.

On peut appliquer un tel clavier derrière une vitre, et donc à l'intérieur d'un coffre ou d'un immeuble à protéger, y compris le clavier. Dans ce cas, la vitre 23 de la porte (ou autre vitre) joue le rôle de la plaque 13.Such a keyboard can be applied behind a window, and therefore inside a safe or a building to be protected, including the keyboard. In this case, the window 23 of the door (or other window) plays the role of the plate 13.

Selon la figure 3 la face avant de la boîte 1 (sans plaque 13) est munie d'une feuille 22 autocollante sur ses deux faces en une matière laissant bien passer le champ magnétique, de telle manière que l'ensemble du clavier puisse être collé sur la face arrière de la vitre existante 23. Ainsi l'usager présente son aimant devant les lucarnes appropriées, de l'extérieur de la porte qu'il veut ouvrir, et de ce fait le clavier se trouve donc bien parfaitement protégé et à peu de frais. Les connexions extérieures d'un tel clavier à une gâché électrique ou autre s'effectuent de façon classique. Dans ce cas, la paroi 2 peut se présenter sous la forme d'un panneau (Fig. 1) ou d'une feuille 2' collée sur la tablette 17 (Fig. 3), mais elle peut aussi se présenter sous la forme d'une feuille d'acier fixée sur la face interne de la feuille autocollante 22 qui est en une matière laissant bien passer le champ magnétique. Dans ces derniers exemples exposés, la feuille 22 peut être pourvue d'une numérotation des lucarnes, parfaitement visible de l'extérieur. Evidemment l'invention permet la fabrication et l'usage de claviers ayant un nombre varié de lucarnes; par exemple trois dans les cas simples à plus de cent dans les cas complexes. La feuille autocollante 22 peut être remplacée par tout autre moyen de fixation de la boîte 1 sur la vitre 23.According to FIG. 3, the front face of the box 1 (without plate 13) is provided with a self-adhesive sheet 22 on its two faces made of a material allowing the magnetic field to pass through well, so that the entire keyboard can be glued on the rear face of the existing window 23. Thus the user presents his magnet in front of the appropriate skylights, from the outside of the door he wants to open, and therefore the keyboard is therefore perfectly protected and little of charges. The external connections of such a keyboard to an electrical or other type of mix are carried out in a conventional manner. In this case, the wall 2 can be in the form of a panel (Fig. 1) or a sheet 2 'glued to the shelf 17 (Fig. 3), but it can also be in the form of 'A steel sheet fixed on the inner face of the self-adhesive sheet 22 which is made of a material allowing the magnetic field to pass through well. In these latter examples, sheet 22 can be provided with a numbering of the skylights, perfectly visible from the outside. Obviously the invention allows the manufacture and use of keyboards having a varied number of skylights; for example three in simple cases to more than one hundred in complex cases. The adhesive sheet 22 can be replaced by any other means of fixing the box 1 to the window 23.

Parmi les avantages que procure un tel clavier, il faut souligner les possibilités de miniaturisation, l'impossibilité de faire le code sans le barreau aimanté adapté à cet effet, et surtout la protection de l'ensemble du clavier derrière une vitre 23 ou une plaque de verre de sécurité 13, robuste, lisse, facilement nettoyable.Among the advantages of such a keyboard, it is necessary to underline the possibilities of miniaturization, the impossibility of making the code without the magnetic bar adapted for this purpose, and especially the protection of the whole of the keyboard behind a window 23 or a plate. of safety glass 13, robust, smooth, easy to clean.

Le clavier peut aussi être fixé derrière une paroi opaque se laissant traversée par le flux magnétique. Cette plaque peut être du type quelconque, tel que par exemple constituant le battant d'une porte, d'un immeuble ou du meuble. Dans ce cas le clavier est non seulement protégé, mais également invisible de l'extérieur, et de ce fait l'existence même dudit clavier peut n'être révélé qu'aux personnes devant l'utiliser. Un clavier comme décrit précédemment est ainsi propre à assurer non seulement la sécurité de l'immeuble ou du meuble dans lequel il est placé, mais également à assurer son auto-protection.The keyboard can also be fixed behind an opaque wall allowing the magnetic flux to pass through it. This plate can be of any type, such as for example constituting the leaf of a door, a building or furniture. In this case the keyboard is not only protected, but equal ment invisible from the outside, and therefore the very existence of said keyboard can only be revealed to people who have to use it. A keyboard as described above is thus capable of ensuring not only the security of the building or of the piece of furniture in which it is placed, but also of ensuring its self-protection.

Claims (9)

1. A keyboard comprising a case (1) containing a device comprising switches with strip contacts which are sensitive to a magnetic field generated by a removable magnet (21) presented at the exterior of the case (1), and a panel or wall (2) which closes the opening of the case (1) and comprises windows (3 to 12), and the solid part of which is made from a material which does not allow the magnetic field to pass, there being arranged beneath each window the contacts (15, 16) of a switch (14) so as to be actuable under the effect of the magnetic field generated by the removable magnet (21) solely when it is presented in front of the said window, at the exterior of the case, the said switches (14) being arranged in the case perpendicularly to the windows (3 to 12) of the wall (2), the axis of each group of contacts (15, 16) coinciding approximately with the normal to the plane of the window, which keyboard is characterised by the fact that, where it allows the formation of electrical command codes, the said switches (14) are mounted between two boards (17, 19) of insulating material, provided with printed circuits (18, 20) forming a frame and electrical connections with the contacts (15, 16).
2. A keyboard according to claim 1, characterised by the fact that the switches with contacts comprise a single envelope provided with several pairs of contacts each pair of contacts being arranged in registration with a given window and having their axis coinciding approximately with the normal to the plane of the window concerned.
3. A keyboard according to claim 1 or claim 2, characterised by the fact that the wall (2) comprises a plate or sheet of steel.
4. A keyboard according to claim 3, characterised by the fact that the wall (2) is fixed externally, on the border of the opening, and forms a cover for the case (1).
5. A keyboard according to claim 3, characterised by the fact that the wall (2) is arranged inside the opening, and is fixed to the external or internal face of the board (17).
6. A keyboard according to any one of claims 1 to 5, characterised by the fact that the front face of the case (1) is protected by a plate (13) of a material which allows the magnetic field to pass, and which constitutes the cover or a double cover.
7. A keyboard according to claim 6, characterised by the face that the plate (13) is made of safety glass.
8. A keyboard according to any one of claims 1 to 5, characterised by the fact that the front face of the case (51) is provided with a self-adhesive sheet (22) made of a material which allows the magnetic field to pass, such that the whole keyboard can be stuck to the rear part of an existing pane of glass.
9. A keyboard according to claim 1 or claim 2, characterised by the fact that the wall (2) is fixed to the internal face of a self-adhesive sheet (22) made from a material which allows the magnetic field to pass, and provided with a numbering of the windows (3 to 12) of the wall (22) such that the whole keyboard can be fixed to the rear face of an existing pane of glass.
EP19850401081 1983-12-01 1985-05-31 Electric or electronic control keyboards Expired - Lifetime EP0204050B1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
FR8319245A FR2556127B1 (en) 1983-12-01 1983-12-01 ELECTRIC OR ELECTRONIC CONTROL KEYBOARD
EP19850401081 EP0204050B1 (en) 1985-05-31 1985-05-31 Electric or electronic control keyboards
DE8585401081T DE3576879D1 (en) 1985-05-31 1985-05-31 ELECTRICAL OR ELECTRONIC CONTROL KEYBOARD.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP19850401081 EP0204050B1 (en) 1985-05-31 1985-05-31 Electric or electronic control keyboards

Publications (2)

Publication Number Publication Date
EP0204050A1 EP0204050A1 (en) 1986-12-10
EP0204050B1 true EP0204050B1 (en) 1990-03-28

Family

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Application Number Title Priority Date Filing Date
EP19850401081 Expired - Lifetime EP0204050B1 (en) 1983-12-01 1985-05-31 Electric or electronic control keyboards

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EP (1) EP0204050B1 (en)
DE (1) DE3576879D1 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02504567A (en) * 1988-06-03 1990-12-20 ダングロ　ベルナール Electric or electronically controlled keyboard
ES2224828B1 (en) * 2002-12-23 2006-04-16 Investigacion Y Transferencia De Tecnologia, S.L. SYSTEM OF CONTROL OF OPENING OF ELECTRICAL CARRADURAS.
FR2874453A1 (en) * 2004-08-17 2006-02-24 Jacques Barnier Magnetically actuated coded keyboard and combination switch`s resistance and compactness improving device for e.g. alarm, has rods realized in metal to be magnetized under effect of magnetic field generated by permanent magnets
WO2006051123A1 (en) * 2004-09-30 2006-05-18 Investigación Y Transferencia De Tecnología, S.L. Control system for activation of an electric circuit
FR2878370A1 (en) * 2004-11-22 2006-05-26 Julie Barnier Electrical equipment e.g. motorized door lock, controlling device for e.g. factory, has reed switches changing state due to magnetization of pins by mobile magnets, provided to compose code, and fixed magnets, to recognize keyboard carrier

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH522966A (en) * 1970-04-17 1972-05-15 Radioelectrique Comp Ind Control panel
GB1322434A (en) * 1970-08-17 1973-07-04 Suwa Seikosha Kk Switchboards
FR2153705A6 (en) * 1971-09-21 1973-05-04 Edf

Also Published As

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EP0204050A1 (en) 1986-12-10
DE3576879D1 (en) 1990-05-03

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