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EP0196633B1 - Tastenkappe für eine in einem Gehäuse angeordnete Tastatur - Google Patents

Tastenkappe für eine in einem Gehäuse angeordnete Tastatur Download PDF

Info

Publication number
EP0196633B1
EP0196633B1 EP86104262A EP86104262A EP0196633B1 EP 0196633 B1 EP0196633 B1 EP 0196633B1 EP 86104262 A EP86104262 A EP 86104262A EP 86104262 A EP86104262 A EP 86104262A EP 0196633 B1 EP0196633 B1 EP 0196633B1
Authority
EP
European Patent Office
Prior art keywords
housing
light
key cap
keyboard according
spring elements
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
Application number
EP86104262A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0196633A3 (en
EP0196633A2 (de
Inventor
Reinhold Kiesewetter
Gerd Nothnagel
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Siemens AG
Original Assignee
Siemens AG
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 Siemens AG filed Critical Siemens AG
Priority to AT86104262T priority Critical patent/ATE67340T1/de
Publication of EP0196633A2 publication Critical patent/EP0196633A2/de
Publication of EP0196633A3 publication Critical patent/EP0196633A3/de
Application granted granted Critical
Publication of EP0196633B1 publication Critical patent/EP0196633B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • H01H13/50—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a single operating member
    • H01H13/52—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a single operating member the contact returning to its original state immediately upon removal of operating force, e.g. bell-push switch
    • 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
    • H01H13/02—Details
    • H01H13/023—Light-emitting indicators
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
    • H01H9/18—Distinguishing marks on switches, e.g. for indicating switch location in the dark; Adaptation of switches to receive distinguishing marks
    • H01H9/182—Illumination of the symbols or distinguishing marks
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2219/00—Legends
    • H01H2219/036—Light emitting elements
    • H01H2219/052—Phosphorescence
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2219/00—Legends
    • H01H2219/054—Optical elements
    • H01H2219/062—Light conductor
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2221/00—Actuators
    • H01H2221/036—Return force
    • H01H2221/044—Elastic part on actuator or casing
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2223/00—Casings
    • H01H2223/054—Mounting of key housings on same printed circuit
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2233/00—Key modules
    • H01H2233/03—Key modules mounted on support plate or frame
    • H01H2233/04—Key modules mounted on support plate or frame captured between assembled parts of support
    • H01H2233/042—Key modules mounted on support plate or frame captured between assembled parts of support with limited freedom

Definitions

  • the invention relates to a key cap for a keyboard arranged in a device of the electrical communication technology, in particular an operating device of a telephone device, which is inserted into a housing opening of the device and can be pressed via a pin against a key arranged inside the housing for its actuation, in which the With lateral play in the housing opening insertable key cap with a correspondingly formed pin on at least one, parallel to the housing opening side has an inclined at an acute angle to the housing, biased spring element, which is supported on a stop surface in the housing and with the top of the by Spring elements formed, with respect to the housing opening in diameter and laterally projecting contact surfaces on the inside of the housing and in which the symbols consist of a translucent plastic and an opaque K surrounded by the keyboard.
  • Telephone devices require operating devices and dialing devices to set up calls, which have so far mostly been provided with a rotating dial.
  • devices of this type and in particular car telephone devices, which have operating devices with dialing keyboards, by means of which the dialing process is made considerably easier.
  • the keyboards are provided with numbers or symbols according to their function, most of which are printed.
  • the operating device of a telephone device can either be a separate device with an associated handset, as is generally the case, or a handset in which the dialing and display units are integrated. In both cases keyboards are required, which are operated by means of key caps inserted into the housing openings.
  • the invention is based on the object of specifying a structure for the keys described in the aforementioned EP-A-148 437 which makes it possible to make use of injection molds which are essentially the same for different symbols.
  • the key cap 1 consists of a half-shell-shaped plastic part which is open at the bottom and has a rectangular shape, on the longitudinal and transverse sides of which spring elements 2 are attached, preferably molded on. These spring elements 2 are fastened to the corners of the key cap 1 and run at an acute angle against the horizontal plane downwards, that is to say towards the housing 6 in which they are inserted.
  • the key cap 1 is stepped at the top, the middle, raised part 3 of the key cap 1 being provided with the number or the symbol with which the key cap 1 is to be identified.
  • the number or symbol consists of a translucent layer 11 made of differently colored, fluorescent plastic. This layer 11 is firmly connected to a plastic part 4, which forms the main body of the button.
  • This base body consists of a translucent plastic that merges into a pin 5 on the underside. Therefor a light-collecting, crystal-clear plastic is used, which serves as a light guide with light-collecting effect.
  • Layer 11 is relatively thin e.g. only 0.4 mm and shows the symbol raised.
  • the depressions around the symbol together with the border form the third opaque layer 12, which is firmly connected to the other parts 4, 5, 11.
  • the layer structure can be clearly seen from FIG.
  • This third layer also carries the spring elements 2 described in the main patent.
  • Fig. 5 shows the key cap 1 described above in the installed state.
  • Several keycaps are expediently arranged in a grid and provided with the symbols corresponding to their function.
  • the associated buttons 8 are attached in the same grid, for example on a printed circuit board 10 and soldered in the example shown via solder connections 9.
  • the key cap 1 is inserted into the opening of a housing 6.
  • a lateral play is provided to prevent the key cap 1 from jamming.
  • the spring elements 2 are supported on a stop surface which is formed by a light guide 7 which has a correspondingly designed bore for receiving the pin 5 of the key cap 1.
  • the light guide 7 serves to supply the light to the numbers or symbols in the key cap 1.
  • the key cap 1 is pressed with its pin 5 onto the key 8 and is reset by the four spring elements 2 attached to the side of the key cap 1 in the exemplary embodiment.
  • This spring element 2 which is made of a correspondingly elastic plastic, also ensures that the keycaps do not rattle in the housing and an undesirable noise occurs when driving.

Landscapes

  • Push-Button Switches (AREA)
  • Input From Keyboards Or The Like (AREA)
  • Epoxy Compounds (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
  • Telephone Set Structure (AREA)
EP86104262A 1985-04-04 1986-03-27 Tastenkappe für eine in einem Gehäuse angeordnete Tastatur Expired - Lifetime EP0196633B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT86104262T ATE67340T1 (de) 1985-04-04 1986-03-27 Tastenkappe fuer eine in einem gehaeuse angeordnete tastatur.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19853512386 DE3512386A1 (de) 1985-04-04 1985-04-04 Tastenkappe fuer eine in einem gehaeuse angeordnete tastatur
DE3512386 1985-04-04

Publications (3)

Publication Number Publication Date
EP0196633A2 EP0196633A2 (de) 1986-10-08
EP0196633A3 EP0196633A3 (en) 1989-03-15
EP0196633B1 true EP0196633B1 (de) 1991-09-11

Family

ID=6267333

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86104262A Expired - Lifetime EP0196633B1 (de) 1985-04-04 1986-03-27 Tastenkappe für eine in einem Gehäuse angeordnete Tastatur

Country Status (7)

Country Link
EP (1) EP0196633B1 (fi)
AT (1) ATE67340T1 (fi)
DE (2) DE3512386A1 (fi)
DK (1) DK151286A (fi)
FI (1) FI861405A (fi)
NO (1) NO861258L (fi)
ZA (1) ZA862455B (fi)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE9001186U1 (de) * 1990-02-02 1990-05-17 S.W.E.C. Schmitt-Walter Engineering Consult, 82008 Unterhaching Leuchttastschalter
EP0470403B1 (de) * 1990-08-07 1995-04-26 Siemens Aktiengesellschaft Tastatur-und Anzeigenbeleuchtung
FR2693285B1 (fr) * 1992-07-01 1994-08-05 Valeo Commutation Tableau de commande a boutons, en particulier pour la commande d'une installation de climatisation de l'habitacle d'un vehicule automobile.
FR2693286B1 (fr) * 1992-07-01 1994-08-05 Valeo Commutation Tableau de commande a touches, en particulier pour la commande d'une installation de climatisation de l'habitacle d'un vehicule automobile.
FR2696020B1 (fr) * 1992-09-21 1994-11-10 Team Bouton de sélection et/ou de réglage, notamment pour face avant de boîtier aéronautique.
DE4323878A1 (de) * 1993-07-16 1995-01-19 Abb Patent Gmbh Tastmodul zum Schalten
DE19758496A1 (de) * 1997-04-25 1999-03-25 Trw Automotive Electron & Comp Verfahren zur Herstellung eines Elements mit Funktionssymbolen für die Beleuchtung mit Durchlicht, insbesondere eines Blendenteils oder Betätigungsteils
DE10251539B4 (de) * 2002-11-05 2006-10-19 Medion Ag Schalter

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1034737B (de) * 1952-09-19 1958-07-24 Siemens Ag Wechselschild fuer Schaltergehaeuse, insbesondere von Druckknopftastern
DE6805771U (de) * 1968-11-07 1969-04-17 Busch Jaeger Dorener Metallwer Elektrisches installationsgeraet mit markierung
DE6910557U (de) * 1969-03-15 1969-12-04 Grundig Emv Schalteinrichtung mit drucktastenknopf, insbesondere fuer elektrische nachrichtengeraete
DE2803539A1 (de) * 1978-01-27 1979-08-02 Blaupunkt Werke Gmbh Tastenknopf mit lichtleiter
DE3112328A1 (de) * 1981-03-28 1982-10-07 Robert Bosch Gmbh, 7000 Stuttgart Druckschalter mit einer kappenfoermigen drucktaste
DE3346485A1 (de) * 1983-12-22 1985-07-04 Siemens AG, 1000 Berlin und 8000 München Tastenkappe fuer eine in einem gehaeuse angeordnete tastatur

Also Published As

Publication number Publication date
FI861405A0 (fi) 1986-04-01
NO861258L (no) 1986-10-06
EP0196633A3 (en) 1989-03-15
ATE67340T1 (de) 1991-09-15
FI861405A (fi) 1986-10-05
DE3681314D1 (de) 1991-10-17
DK151286A (da) 1986-10-05
EP0196633A2 (de) 1986-10-08
DK151286D0 (da) 1986-04-03
DE3512386A1 (de) 1986-10-09
ZA862455B (en) 1986-11-26

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