FR2539247A1 - Keyboard with adaptable key marking - Google Patents

Keyboard with adaptable key marking Download PDF

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Publication number
FR2539247A1
FR2539247A1 FR8300168A FR8300168A FR2539247A1 FR 2539247 A1 FR2539247 A1 FR 2539247A1 FR 8300168 A FR8300168 A FR 8300168A FR 8300168 A FR8300168 A FR 8300168A FR 2539247 A1 FR2539247 A1 FR 2539247A1
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FR
France
Prior art keywords
key
cap
key body
keyboard
keyboard according
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.)
Granted
Application number
FR8300168A
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French (fr)
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FR2539247B1 (en
Inventor
Bernard Fourcaulx
Claude Fourcaulx
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F M ATELIER MECA PRECISION
Original Assignee
F M ATELIER MECA PRECISION
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by F M ATELIER MECA PRECISION filed Critical F M ATELIER MECA PRECISION
Priority to FR8300168A priority Critical patent/FR2539247B1/en
Publication of FR2539247A1 publication Critical patent/FR2539247A1/en
Application granted granted Critical
Publication of FR2539247B1 publication Critical patent/FR2539247B1/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H13/00—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch
    • H01H13/70—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a plurality of operating members associated with different sets of contacts, e.g. keyboard
    • H01H13/702—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a plurality of operating members associated with different sets of contacts, e.g. keyboard with contacts carried by or formed from layers in a multilayer structure, e.g. membrane switches
    • H01H13/705—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a plurality of operating members associated with different sets of contacts, e.g. keyboard with contacts carried by or formed from layers in a multilayer structure, e.g. membrane switches characterised by construction, mounting or arrangement of operating parts, e.g. push-buttons or keys
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2221/00—Actuators
    • H01H2221/08—Actuators composed of different parts
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2229/00—Manufacturing
    • H01H2229/042—Snap coupling; Snap mounting
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2300/00—Orthogonal indexing scheme relating to electric switches, relays, selectors or emergency protective devices covered by H01H
    • H01H2300/042—Application rejection, i.e. preventing improper installation of parts

Landscapes

  • Input From Keyboards Or The Like (AREA)

Abstract

Keyboard containg two-part keys to permit marking of the latter on request. According to the invention, each key 15 is composed of a key body 21 mounted permanently inside the housing of the keyboard and of a key hood 22, optionally transparent or translucent, which is force fitted onto the key body, to permit temporary marking of the key, for example through the interposition of a label 35 between key body and hood. Application to calculators and office automation.

Description

CLAVIER A MARQUAGE DE TOUCHES ADAPTABLE
L'invention concerne un clavier électromécanique à marquage de touches adaptable; elle concerne plus particulièrement un perfectionnement desdites touches dans ce but.ADAPTABLE KEY MARKING KEYBOARD
The invention relates to an electromechanical keyboard with adaptable key marking; it relates more particularly to an improvement of said keys for this purpose.

Les domaines des calculatrices électroniques, de la bureautique et de l'informatique nécessitent de plus en plus de claviers à touches. The fields of electronic calculators, office automation and data processing require more and more keyboards with keys.

La multiplicité et l'évolution meme de ces machines nécessitent une très grande diversité de caractères, certains très courants comme les chiffres, d'autres plus rares , voire spécifiques à un type de machine bien particulier. Cette diversité des marquages est encore accrue par le fait que les constructeurs de telles machines désirent souvent personnaliser leur production.The multiplicity and the very evolution of these machines requires a very wide variety of characters, some very common like numbers, others more rare, even specific to a very particular type of machine. This diversity of markings is further increased by the fact that the manufacturers of such machines often wish to personalize their production.

Ces industriels.utilisent souvent des claviers proposés dans des versions standardisées pa'r des fabricants spécialisés dans ce genre de sous-ensembles. Par exemplc, on connaît de tels claviers où les contacts fixes associés aux différentes touches sont réalisés sur un circuit imprimé, tandis que les contacts mobiles sont constitués de pastilles conductrices associées à des moyens de rappel. Chaque contact mobile coopère avec une touche guidée en translation dans l'épaisseur d'un cadre support surmontant le circuit imprimé. Les moyens de rappel sont souvent constitués par une plaque de matériau élastomère présentant une pluralité de protubérances creuses abritant les contacts mobiles. These manufacturers often use keyboards offered in standardized versions by manufacturers specializing in this type of sub-assembly. For example, such keyboards are known where the fixed contacts associated with the different keys are made on a printed circuit, while the movable contacts consist of conductive pads associated with return means. Each movable contact cooperates with a key guided in translation in the thickness of a support frame surmounting the printed circuit. The return means often consist of a plate of elastomeric material having a plurality of hollow protrusions housing the movable contacts.

Suivant les commandes, le fabricant de claviers doit pouvoir équiper ces modules standardisés de touches présentant des caractères correspondant aux besoins du client qui est le concepteur et le fabricant d'une machine à clavier. Le fabricant de claviers est donc le plus souvent tenu de réaliser des touches pratiquement à la demande avant de les inclure dans les claviers, ces derniers étant rendus indémontables à un stade ultérieur de la fabrication, pour améliorer la fiabilité. Cette contrainte entraîne des délais souvent très préjudiciables à l'utilisateur des claviers. Par ailleurs, il ntest pas toujours évident, pour un constructeur de machines à clavier, de donner d'emblée une définition claire et précise de son clavier. Des modifications peuvent intervenir au stade du prototype ou de la pré-série.Si le marquage des touches doit subir une modification tardive, tous les claviers déjà livrés doivent être mis au rebut, puisqu'ils sont indémontables, et on doit faire face à de nouveaux délais pour l'approvisionnement de nouvelles touches. According to the orders, the keyboard manufacturer must be able to equip these standardized modules with keys presenting characters corresponding to the needs of the customer who is the designer and the manufacturer of a keyboard machine. The keyboard manufacturer is therefore most often required to make keys practically on demand before including them in the keyboards, the latter being rendered non-removable at a later stage of manufacture, in order to improve reliability. This constraint leads to delays that are often very detrimental to the user of the keyboards. In addition, it is not always obvious, for a manufacturer of keyboard machines, to immediately give a clear and precise definition of his keyboard. Modifications can occur at the prototype or pre-series stage. If the key marking must undergo a late modification, all keyboards already delivered must be discarded, since they are not removable, and we must face new time limits for the supply of new keys.

On comprend dans ces conditions que les clients soient parfois hésitants sur le nombre de claviers à passer en commande.We understand in these conditions that customers are sometimes hesitant about the number of keyboards to order.

L'invention vise à résoudre tous ces inconvénients. The invention aims to solve all of these drawbacks.

Dans cet esprit, l'invention concerne un clavier comportant au moins un ensemble constitué d'un contact fixe, d'un contact mobile associé à un moyen de rappel et d'une touche située au-dessus desdits contacts, ladite touche étant logée dans un trou d'un cadre support à l'in- térieur duquel elle est guidée, caractérisé en ce que ladite touche se compose d'un corps de touche et d'un capuchon de touche venant recouvrir au moins la face supérieure dudit corps de touche et en ce que des moyens coopérants d'emboîtage à force sont agencés pour verrouiller ledit capuchon au-dessus dudit corps de touche. In this spirit, the invention relates to a keyboard comprising at least one assembly consisting of a fixed contact, a movable contact associated with a recall means and a key located above said contacts, said key being housed in a hole in a support frame inside which it is guided, characterized in that said key consists of a key body and a key cap covering at least the upper face of said key body and in that cooperating force fitting means are arranged to lock said cap above said key body.

L'invention sera-mieux comprise et d'autres avantages de celleci apparaîtront mieux à la lumière de la description qui va suivre d'un mode de réalisation actuellement préféré d'un clavier conforme à l'in vention, -donnée uniquement à titre d'exemple et faite en référence au dessin non limitatif annexé, dans lequel
- la figure I est une coupe d'un clavier conforme à l'invention;
- la figure 2 est une vue de dessus d'un corps de touche;
- la figure 3 est une vue de dessus du capuchon de touche correspondant; et
- la figure 4 est une vue partielle en perspective éclatée du clavier.The invention will be better understood and other advantages of this will appear better in the light of the description which follows of a currently preferred embodiment of a keyboard according to the invention, given solely by way of example and made with reference to the attached nonlimiting drawing, in which
- Figure I is a section of a keyboard according to the invention;
- Figure 2 is a top view of a key body;
- Figure 3 is a top view of the corresponding key cap; and
- Figure 4 is a partial exploded perspective view of the keyboard.

En se référant au dessin, un clavier auquel se rapporte l'invention comprend un circuit imprimé 11 portant plusieurs contacts fixes 12 disposés suivant une configuration géométrique régulière et autant de contacts mobiles 13 associés à un moyen de rappel 14, les contacts mobiles étant surmontés par des touches respectives 15, logées dans des trous 16 d'un cadre support 17. Ce cadre présente une certaine épaisseur pour assurer un guidage convenable des touches 15 dans les trous 16; il est fixé au circuit imprimé 11. Dans l'exemple décrit, le moyen de rappel 14 est commun à toutes les touches du clavier et constitué par une plaque de matériau élastomère présentant une pluralité de protubérances creuses 19 abritant respectivement des pastilles conductrices (par exemple du caoutchouc au silicone rendu conducteur) constituant les contacts mobiles 13 précités.Chacun de ceux-ci est donc susceptible de court-circuiter deux parties distinctes du contact fixe 12 correspondant. le clavier est rendu indémontable par sertissage de plots 20 du cadre 17 sur la face opposée du circuit imprimé 11, ces plots traversant de part en part la plaque de matériau élastomère du moyen de rappel 14. Referring to the drawing, a keyboard to which the invention relates comprises a printed circuit 11 carrying several fixed contacts 12 arranged in a regular geometrical configuration and as many movable contacts 13 associated with a return means 14, the movable contacts being overcome by respective keys 15, housed in holes 16 of a support frame 17. This frame has a certain thickness to ensure proper guidance of the keys 15 in the holes 16; it is fixed to the printed circuit 11. In the example described, the return means 14 is common to all the keys of the keyboard and consists of a plate of elastomeric material having a plurality of hollow protrusions 19 respectively housing conductive pads (for example silicone rubber made conductive) constituting the movable contacts 13 above. Each of these is therefore capable of short-circuiting two separate parts of the corresponding fixed contact 12. the keyboard is made non-removable by crimping studs 20 of the frame 17 on the opposite face of the printed circuit 11, these studs passing right through the plate of elastomeric material of the return means 14.

Selon une caractéristique de l'invention, chaque touche 15 se compose d'un corps de touche 21 et d'un capuchon de touche 22 venant recouvrir au moins la face supérieure du corps de touche. Dans ltexem- ple décrit, une portion supérieure de chaque corps de touche 21 est dégagée de la paroi latérale du trou 16 qui l'abrite et le capuchon 22 correspondantcomporte une jupe latérale 23 s'ajustant dans l'espace laisse libre entre ladite portion supérieure et la paroi latérale interne du trou 16. D'autre part, des moyens coopérants d'emboîtage à force sont agencés pour verrouiller chaque capuchon au-dessus du corps de touche correspondant.Dans l'exemple décrit, ces moyens coopérants d'emboîtage consistent en des crochets 25 et encoches 26, agencés respectivement à la partie inférieure de la jupe 23 et sur les flancs du corps de touche 21. Pour faciliter l'emboîtage des capuchons sur les corps de touche après l'assemblage du cadre-17 et du circuit imprimé 11, comme le montre la figure 1, les crochets 25 sont ménagés sur des parties amincies de la paroi de jupe des capuchons, tandis que le bord supérieur de chaque encoche 26 est souligné d'un léger relief 28. Par ailleurs, les corps de touche et les capuchons sont munis de moyens de détrompage constitués ici par des coins tronqués 29 et 30, respectivement, venus de matière. Ces moyens de détrompage permettent de toujours introduire le capuchon dans le trou 16 correspondant, avec une orientation assurant l'encliquetage des crochets et encoches.Dans l'exemple décrit, chaque trou 16 comporte deux sections différentes, la section inférieure 16a étant la plus grande et de forme correspondant à celle de la portion inférieure 21a du corps de touche 21. La section supérieure 16b a une forme et des dimensions correspondant à celles du capuchon 22. Les deux sections 16a et 16b définissent donc un épaulement 32 qui fixe la position de repos de la touche 15 sollicitée par le moyen de rappel (14, 19) dans la direction de l'épaulement. According to a characteristic of the invention, each key 15 consists of a key body 21 and a key cap 22 which covers at least the upper face of the key body. In the example described, an upper portion of each key body 21 is released from the side wall of the hole 16 which shelters it and the corresponding cap 22 has a side skirt 23 which adjusts in the space left free between said upper portion and the internal side wall of the hole 16. On the other hand, cooperating force fitting means are arranged to lock each cap above the corresponding key body. In the example described, these cooperating means consist in hooks 25 and notches 26, respectively arranged at the lower part of the skirt 23 and on the sides of the key body 21. To facilitate the fitting of the caps on the key bodies after assembly of the frame-17 and the printed circuit 11, as shown in FIG. 1, the hooks 25 are formed on thinned parts of the skirt wall of the caps, while the upper edge of each notch 26 is underlined with a slight relief 28. Furthermore, the vs key orps and the caps are provided with coding means constituted here by truncated corners 29 and 30, respectively, made of material. These keying means always allow the cap to be inserted into the corresponding hole 16, with an orientation ensuring the hooking of the hooks and notches. In the example described, each hole 16 has two different sections, the lower section 16a being the largest and of shape corresponding to that of the lower portion 21a of the key body 21. The upper section 16b has a shape and dimensions corresponding to those of the cap 22. The two sections 16a and 16b therefore define a shoulder 32 which fixes the position of rest of the button 15 urged by the return means (14, 19) in the direction of the shoulder.

Au stade de la fabrication, seuls les corps-de touche 21 sont emprisonnés dans les trous 16 correspondants au moment de la fixation définitive du cadre support 17 et du circuit imprimé 11 (voir fig. 4).  At the manufacturing stage, only the key bodies 21 are trapped in the corresponding holes 16 at the time of the final fixing of the support frame 17 and of the printed circuit 11 (see fig. 4).

Les claviers sont livrés dans cet état à l'utilisateur, avec un certain nombre de capuchons non montés. Pendant les premières livraisons, ces capuchons sont avantageusement transparents ou translucides, de sorte que le marquage de chaque touche peut êtré effectué sur la surface supérieure du corps de touche ou par interposition d'une étiquette 35 (fig. 1) entre celui-ci et ledit capuchon. Ultérieurement, les claviers seront livrés avec des capuchons portant un marquage définitif, par exemple gravé. The keyboards are delivered in this state to the user, with a certain number of caps not fitted. During the first deliveries, these caps are advantageously transparent or translucent, so that the marking of each key can be carried out on the upper surface of the key body or by interposition of a label 35 (fig. 1) between it and said cap. Subsequently, the keyboards will be delivered with caps bearing a definitive marking, for example engraved.

Claims (6)

REVENDICATIONS 1. Clavier comportant au moins un ensemble constitué d1un contact fixe (12), d'un contact mobile (13) et d'une touche (15) située au-dessus desdits contacts, ladite touche étant logée dans un trou (16) d'un cadre support (17) à l'intérieur duquel elle est guidée, caractérisé en ce que ladite touche se compose d'un corps de touche (21) et d'un capuchon de touche (22) venant recouvrir au moins la face supérieure dudit corps de touche, et en ce que des moyens coopérants d'emboîtage à force (25, 26) sont agencés pour verrouiller ledit capuchon au-dessus dudit corps de touche. 1. Keyboard comprising at least one assembly consisting of a fixed contact (12), a movable contact (13) and a key (15) located above said contacts, said key being housed in a hole (16) d '' a support frame (17) inside which it is guided, characterized in that said key consists of a key body (21) and a key cap (22) covering at least the upper face of said key body, and in that cooperating force-fitting means (25, 26) are arranged to lock said cap above said key body. 2. Clavier selon la revendication 1, caractérisé en ce qu'unie portion supérieure dudit corps de touche est dégagée de la paroi latérale dudit trou et que ledit capuchon comporte une jupe latérale (23) s'ajustant dans l'espace laissé libre entre ladite portion supérieure et la paroi dudit trou. 2. Keyboard according to claim 1, characterized in that a upper upper portion of said key body is released from the side wall of said hole and that said cap comprises a side skirt (23) adjusting in the space left free between said upper portion and the wall of said hole. 3. Clavier selon la revendication 2, caractérisé en ce que les moyens coopérants d'emboîtage précités consistent essentiellement en des crochets (25) et encoches (26) agencés d'une part à la partie inférieure de ladite jupe (23) et, d'autre part, sur les flancs dudit corps de touche (21). 3. Keyboard according to claim 2, characterized in that the aforementioned cooperating nesting means consist essentially of hooks (25) and notches (26) arranged on the one hand at the bottom of said skirt (23) and, d 'other hand, on the sides of said key body (21). 4. Clavier selon la revendication 3, caractérisé en ce que ledit corps de touche et ledit capuchon sont munis de moyens de détrompage (29, 30). 4. Keyboard according to claim 3, characterized in that said key body and said cap are provided with polarizing means (29, 30). 5. Clavier selon l'une des revendications précédentes, caractérisé en ce qu'il est équipé d'au moins un capuchon (21) précite, transparent ou translucide, un marquage de la touche correspondante étant effectué sur la surface supérieure du corps de touche associé, ou par interposition d'une étiquette (35) entre celui-ci et ledit capuchon. 5. Keyboard according to one of the preceding claims, characterized in that it is equipped with at least one cap (21) above, transparent or translucent, a marking of the corresponding key being carried out on the upper surface of the key body associated, or by interposition of a label (35) between the latter and said cap. 6. Clavier selon l'une des revendications précédentes, caractérisé en ce que ledit trou comporte deux sections (ira, 16b) différentes, la section inférieure (16a) étant la plus grande et de forme correspondant à celle de la portion inférieure dudit corps de touche, et la section supérieure ayant une forme correspondant à celle dudit capuchon, et en ce que l'épaulement (32) entre lesdites deux sections définit la position de repos de la touche complète, sollicitée par ledit moyen de rappel (14, 19) dans la direction dudit épaulement  6. Keyboard according to one of the preceding claims, characterized in that said hole has two different sections (ira, 16b), the lower section (16a) being the largest and of shape corresponding to that of the lower portion of said body. button, and the upper section having a shape corresponding to that of said cap, and in that the shoulder (32) between said two sections defines the rest position of the complete button, urged by said return means (14, 19) in the direction of said shoulder
FR8300168A 1983-01-07 1983-01-07 ADAPTABLE KEY MARKING KEYBOARD Expired FR2539247B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR8300168A FR2539247B1 (en) 1983-01-07 1983-01-07 ADAPTABLE KEY MARKING KEYBOARD

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8300168A FR2539247B1 (en) 1983-01-07 1983-01-07 ADAPTABLE KEY MARKING KEYBOARD

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FR2539247A1 true FR2539247A1 (en) 1984-07-13
FR2539247B1 FR2539247B1 (en) 1986-11-07

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2647588A1 (en) * 1989-05-23 1990-11-30 Moulinex Sa KEYBOARD SWITCH FOR CONTROL PANEL OF AN ELECTRICAL APPLIANCE
EP0565959A1 (en) * 1992-04-14 1993-10-20 MOTOROLA GmbH A keypad
EP1933222A1 (en) * 2006-12-15 2008-06-18 Bendix Commercial Vehicle Systems, LLC Fluid flow control device operator
CN104966629A (en) * 2015-07-02 2015-10-07 常州市宇声电子有限公司 Novel switch

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1150426B (en) * 1960-04-02 1963-06-20 Berker Geb Electric button with changeable symbol display
FR2070611A5 (en) * 1969-12-10 1971-09-10 Telic
GB1549224A (en) * 1975-09-12 1979-08-01 Cge Spa Push-button
US4163883A (en) * 1977-12-30 1979-08-07 Texas Instruments Incorporated Keyboard with illuminated keys
DE2844579A1 (en) * 1978-10-13 1980-04-24 Schlegel Georg Fa ACTUATOR WITH ILLUMINATED BUTTON FOR ELECTRICAL SWITCHING DEVICES, ESPECIALLY FOR COMMAND SWITCHES
EP0011323A1 (en) * 1978-11-10 1980-05-28 International Standard Electric Corporation Switch push button

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1150426B (en) * 1960-04-02 1963-06-20 Berker Geb Electric button with changeable symbol display
FR2070611A5 (en) * 1969-12-10 1971-09-10 Telic
GB1549224A (en) * 1975-09-12 1979-08-01 Cge Spa Push-button
US4163883A (en) * 1977-12-30 1979-08-07 Texas Instruments Incorporated Keyboard with illuminated keys
DE2844579A1 (en) * 1978-10-13 1980-04-24 Schlegel Georg Fa ACTUATOR WITH ILLUMINATED BUTTON FOR ELECTRICAL SWITCHING DEVICES, ESPECIALLY FOR COMMAND SWITCHES
EP0011323A1 (en) * 1978-11-10 1980-05-28 International Standard Electric Corporation Switch push button

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2647588A1 (en) * 1989-05-23 1990-11-30 Moulinex Sa KEYBOARD SWITCH FOR CONTROL PANEL OF AN ELECTRICAL APPLIANCE
EP0565959A1 (en) * 1992-04-14 1993-10-20 MOTOROLA GmbH A keypad
US5367133A (en) * 1992-04-14 1994-11-22 Motorola, Inc. Keypad including membrane with replaceable key elements
EP1933222A1 (en) * 2006-12-15 2008-06-18 Bendix Commercial Vehicle Systems, LLC Fluid flow control device operator
US7966906B2 (en) 2006-12-15 2011-06-28 Bendix Commercial Vehicle Systems Llc Fluid flow control device operator
CN104966629A (en) * 2015-07-02 2015-10-07 常州市宇声电子有限公司 Novel switch

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Publication number Publication date
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