EP0478991A2 - Support pour touches d'un clavier d'appareils électriques - Google Patents

Support pour touches d'un clavier d'appareils électriques Download PDF

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Publication number
EP0478991A2
EP0478991A2 EP91115192A EP91115192A EP0478991A2 EP 0478991 A2 EP0478991 A2 EP 0478991A2 EP 91115192 A EP91115192 A EP 91115192A EP 91115192 A EP91115192 A EP 91115192A EP 0478991 A2 EP0478991 A2 EP 0478991A2
Authority
EP
European Patent Office
Prior art keywords
keys
keyboard
holder
openings
holder 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.)
Withdrawn
Application number
EP91115192A
Other languages
German (de)
English (en)
Other versions
EP0478991A3 (en
Inventor
Johannes-Roelof Veurman
Jürgen Reuschel
Heinz-Dieter Dipl.-Ing. Müller
Klaus Dipl.-Ing. Kroesen
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
Publication of EP0478991A2 publication Critical patent/EP0478991A2/fr
Publication of EP0478991A3 publication Critical patent/EP0478991A3/de
Withdrawn legal-status Critical Current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
    • H01H13/70—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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2221/00—Actuators
    • H01H2221/024—Transmission element
    • H01H2221/03—Stoppers for on or off position
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2223/00—Casings
    • H01H2223/034—Bezel
    • H01H2223/0345—Bezel with keys positioned directly next to each other without an intermediate bezel or frame
    • 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
    • H01H2233/00—Key modules
    • H01H2233/03—Key modules mounted on support plate or frame
    • H01H2233/034—Snap coupling
    • H01H2233/036—Snap coupling with limited freedom

Definitions

  • the present invention includes a holder for keys of a keyboard of electrical devices, which are guided and held against spring force.
  • keyboards are e.g. B. in telephones as a separate component, the individual keys are held on their outer contours in separate guides of the keyboard.
  • Brackets for keys in telephone sets are also known, in which the individual keys are guided and held in recesses in the upper part of the telephone on their outer contours.
  • both embodiments have the disadvantage that there is a relatively large space between the individual keys.
  • the present invention is therefore based on the object of demonstrating a holder for keys on a keyboard, which enables a compact arrangement of the keys with very little space.
  • this object is achieved in that in the interior of the individual keys arranged and integrally connected with them are provided approaches that are arranged in the keyboard arranged and corresponding openings of the device housing, with at least two stroke limiters on the keys and securing the keys forming retaining elements are arranged, which engage in the area of the openings provided recordings.
  • a further anti-twist protection of the keys can be achieved by choosing a rectangular cross-section for the approaches on the keys and the openings serving as guides within the device.
  • the holding elements themselves can be designed in the form of a latching hook and have hook-shaped approaches at their free ends. As a result, the assembly of the individual keys is made easier by snapping into the recesses and, on the other hand, additional key guidance is achieved. For reasons of injection molding and assembly technology, it has proven advantageous to arrange these holding elements offset in the area of the outer contours of the keys.
  • the keys 1 shown in the figures of a keyboard for a telephone station act via lifting bellows 2 of a rubber mat 3 made of elastic material on contacts of a circuit board 1 (not shown here).
  • the individual keys 1 each have a cylindrical inside in the direction of the lifting bellows 2 Approach 4, which is guided in a round cross section of the telephone housing 12 which corresponds to it in shape and is arranged inside the telephone station 5.
  • the slightly recessed interior of the cylindrical extension 4 causes the bellows 2 to deform, which in turn causes the button to return to the starting position when the button is not actuated.
  • the keys 1 furthermore have four holding elements 7 arranged offset on their outer contours, integrally connected to them and forming a stroke limitation for the key, the free ends of which have a hook-shaped extension 8. These holding elements engage in the receptacles 9 arranged in the area of the openings 5 and thus, in addition to the stroke limitation of the keys, additionally guide and secure the keys against undesired falling out.
  • the game ie. H. the clear width between the respective opening 5 and the cylindrical extension 4 of the key can be kept somewhat larger.
  • the keys support each other to prevent rotation. For this reason, the gap 10 between the actuating surfaces 11 of the individual keys also narrows in the actuating direction.

Landscapes

  • Input From Keyboards Or The Like (AREA)
  • Push-Button Switches (AREA)
  • Telephone Set Structure (AREA)
EP19910115192 1990-10-01 1991-09-09 Holder for keys of a keyboard for electrical apparatus Withdrawn EP0478991A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4031049 1990-10-01
DE4031049 1990-10-01

Publications (2)

Publication Number Publication Date
EP0478991A2 true EP0478991A2 (fr) 1992-04-08
EP0478991A3 EP0478991A3 (en) 1992-10-21

Family

ID=6415375

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19910115192 Withdrawn EP0478991A3 (en) 1990-10-01 1991-09-09 Holder for keys of a keyboard for electrical apparatus

Country Status (1)

Country Link
EP (1) EP0478991A3 (fr)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1170765A2 (fr) * 2000-06-30 2002-01-09 Nokia Mobile Phones Ltd. Structure de boítier pour appareil électronique
WO2002054733A1 (fr) * 2000-12-29 2002-07-11 Vertu Ltd Dispositif de communication portable
WO2002054736A1 (fr) * 2000-12-29 2002-07-11 Vertu Limited Dispositif de communication portable
GB2371021A (en) * 2000-12-29 2002-07-17 Nokia Mobile Phones Ltd A portable communication device
WO2003017300A2 (fr) * 2001-08-16 2003-02-27 Siemens Aktiengesellschaft Appareil terminal electronique
US6965789B2 (en) 2000-12-29 2005-11-15 Vertu Limited Portable communication device
US20140048397A1 (en) * 2012-08-14 2014-02-20 Microsoft Corporation Self aligning minimal gap keycaps

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2178237A (en) * 1985-06-24 1987-02-04 Alps Electric Co Ltd Push button switch
EP0267541A2 (fr) * 1986-11-12 1988-05-18 Smk Co., Ltd. Un clavier
US4786766A (en) * 1985-08-26 1988-11-22 Canon Kabushiki Kaisha Keyboard apparatus
DE3918229C1 (fr) * 1989-06-03 1990-07-26 Mannesmann Kienzle Gmbh, 7730 Villingen-Schwenningen, De

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2178237A (en) * 1985-06-24 1987-02-04 Alps Electric Co Ltd Push button switch
US4786766A (en) * 1985-08-26 1988-11-22 Canon Kabushiki Kaisha Keyboard apparatus
EP0267541A2 (fr) * 1986-11-12 1988-05-18 Smk Co., Ltd. Un clavier
DE3918229C1 (fr) * 1989-06-03 1990-07-26 Mannesmann Kienzle Gmbh, 7730 Villingen-Schwenningen, De

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
TECHNICAL DIGEST Nr. 67, Juli 1982, NEW YORK USA Seiten 23 - 24; W.R. TOLMAN: 'KEYBOARD' *

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6587332B2 (en) 2000-06-30 2003-07-01 Nokia Mobile Phones, Ltd. Structure of a housing for an electronic device
EP1170765A2 (fr) * 2000-06-30 2002-01-09 Nokia Mobile Phones Ltd. Structure de boítier pour appareil électronique
EP1170765A3 (fr) * 2000-06-30 2004-01-02 Nokia Corporation Structure de boítier pour appareil électronique
GB2371021B (en) * 2000-12-29 2005-07-27 Nokia Mobile Phones Ltd A portable communication device
GB2371021A (en) * 2000-12-29 2002-07-17 Nokia Mobile Phones Ltd A portable communication device
GB2371022A (en) * 2000-12-29 2002-07-17 Nokia Mobile Phones Ltd A portable communication device
WO2002054734A1 (fr) * 2000-12-29 2002-07-11 Vertu Ltd Dispositif de communication portable
WO2002054736A1 (fr) * 2000-12-29 2002-07-11 Vertu Limited Dispositif de communication portable
GB2371022B (en) * 2000-12-29 2005-01-12 Nokia Mobile Phones Ltd A portable communication device
WO2002054733A1 (fr) * 2000-12-29 2002-07-11 Vertu Ltd Dispositif de communication portable
US6965789B2 (en) 2000-12-29 2005-11-15 Vertu Limited Portable communication device
WO2003017300A2 (fr) * 2001-08-16 2003-02-27 Siemens Aktiengesellschaft Appareil terminal electronique
WO2003017300A3 (fr) * 2001-08-16 2003-08-07 Siemens Ag Appareil terminal electronique
DE10140337B4 (de) * 2001-08-16 2005-02-24 Siemens Ag Elektronisches Endgerät
US20140048397A1 (en) * 2012-08-14 2014-02-20 Microsoft Corporation Self aligning minimal gap keycaps
US9256294B2 (en) * 2012-08-14 2016-02-09 Microsoft Technology Licensing, Llc Self aligning minimal gap keycaps

Also Published As

Publication number Publication date
EP0478991A3 (en) 1992-10-21

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