EP1280171A2 - Clavier - Google Patents

Clavier Download PDF

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Publication number
EP1280171A2
EP1280171A2 EP02015352A EP02015352A EP1280171A2 EP 1280171 A2 EP1280171 A2 EP 1280171A2 EP 02015352 A EP02015352 A EP 02015352A EP 02015352 A EP02015352 A EP 02015352A EP 1280171 A2 EP1280171 A2 EP 1280171A2
Authority
EP
European Patent Office
Prior art keywords
housing shell
housing
keyboard
keyboard mat
shell halves
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Withdrawn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
EP02015352A
Other languages
German (de)
English (en)
Other versions
EP1280171A3 (fr
Inventor
Stephan Herrmann
Frank Trummer
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.)
Gigaset Communications GmbH
Original Assignee
Siemens AG
Siemens Corp
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, Siemens Corp filed Critical Siemens AG
Publication of EP1280171A2 publication Critical patent/EP1280171A2/fr
Publication of EP1280171A3 publication Critical patent/EP1280171A3/fr
Withdrawn legal-status Critical Current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
    • 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2221/00—Actuators
    • H01H2221/002—Actuators integral with membrane
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2223/00—Casings
    • H01H2223/002—Casings sealed
    • 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
    • H01H2231/00—Applications
    • H01H2231/022—Telephone handset

Definitions

  • the invention relates to a keyboard mat according to the preamble of claim 1.
  • keyboard mats are known per se.
  • keyboard mats are used in the cordless handset or in a cell phone.
  • a large number of rib parts are integrated in the housing of the device, which press on the keyboard mat. The pressure prevents, for example, dust, 1 or grease from getting into the interior of the housing through the keyboard openings.
  • the housings of the devices are made from two halves of the shell, one of which has angled ejector shell and the other half of which has undercuts.
  • the inclined ejectors engage behind the undercuts on the other housing shell half with a latching hook-shaped structure, and the two housing shell halves are held together.
  • the oblique ejectors have to be moved back so far, that is to say they have to be removed from the mold, so that the locking hook-shaped structures of the oblique ejectors detach from the undercuts on the other housing shell half. This requires minimum distances for the movement of the inclined ejectors in the housing, which must be kept clear.
  • the open spaces represent most of the time an unused space that prevents the devices in question from being made even smaller.
  • an attempt is made to make the free spaces as small as possible, with the result that the oblique ejectors on the edges when demolding inside of the housing and cannot be completely removed from the mold.
  • the housing shell halves then remain hooked to one another at least at partial points.
  • Edges on which the inclined ejectors can get caught have, in particular, the rib parts provided for sealing purposes on the housing shell halves, which are often positioned in the vicinity of the inclined ejectors.
  • the keyboard mat then has integrated sealing ribs, by means of which a sealing effect corresponding to the sealing effect of the rib parts on the housing shell halves is achieved instead of the rib parts on the housing shell halves.
  • the rib parts do not always have to be completely replaced by integrated sealing ribs. It is conceivable to replace the rib parts only at crucial parts of the seal by integrated sealing ribs on the keyboard mat.
  • the sealing effect is achieved by the sealing ribs integrated in the keyboard mat, the rib parts on the housing shell halves can be omitted for the sealing.
  • the expanded free space also makes it possible to provide additional latches. It is also possible for a flat module to be locked in a relevant device, for example the handset a cordless phone or a cell phone.
  • Sealing takes place through one housing shell half, for example the upper housing shell half of a device in which this housing shell half presses on the sealing ribs of the keyboard mat.
  • An embodiment of the seal can be provided in such a way that the relevant housing shell half presses the edge of the keyboard mat against the other housing shell half.
  • the contact pressure does not then have to be generated completely by the existing flat module on which the keyboard mat is arranged, for example.
  • Such a printed circuit board is thus significantly relieved. It can therefore be made thinner with the corresponding advantages, such as lower costs and lower weight. In addition, the printed circuit board bends significantly less.
  • Figures 1 to 3 relate to a mobile part of a cordless telephone, of which only the parts required for the description of the invention are shown.
  • a basic flat module 1 is shown in a sectional view, which is the wearer, among other things, for the elements for forming a key unit of the handset. However, these elements are not shown in detail.
  • a keyboard mat 2 is arranged on the flat module 1, of which some key tappets can be seen.
  • the struts of a housing shell half 3 are arranged, which in the assembled state of the housing shell half 3 press on assigned positions on the keyboard mat 2 and thereby effect a seal around the key tappet of the key mat 2 in the case shown.
  • the struts of the housing shell half 3 below the struts have rib parts 4 which carry out the pressure on the keyboard mat 2.
  • FIG. 1 shows a perspective interior view of the housing shell half 3 mentioned in the previous section few rib parts 4 marked in more detail. Some of these rib parts 4 are arranged in the region of inclined ejectors 5.
  • a keyboard mat 2 addressed in connection with the first section is shown in a plan view.
  • FIG. 2 Two detailed views are shown in FIG. 2, of which the second detailed view is a detailed view of the first.
  • FIG. 2 In the first detailed view of FIG. 2, which is drawn in an overturned manner compared to the first section of FIG. 1, the flat module 1 can again be seen with printing elements now shown in more detail for the implementation of a keyboard.
  • the keyboard mat 2 is arranged on the flat module 1, on which in turn an upper housing shell half 3 of an associated housing is arranged.
  • no inclined ejector 5 is shown, the normal direction of removal of which is represented by an arrow 6.
  • the oblique ejector 5 would have to be moved in the direction of the flat module 1 to such an extent that an undercut 7 is released by a locking hook-shaped structure 8 on the oblique ejector 5.
  • the inclined ejector 5 which belongs to the one half of the housing shell of a housing. Furthermore, the undercut 7, which belongs to the other housing shell half of the housing, is shown in this detailed view. In addition, the locking hook-shaped structure 8 is shown on the inclined ejector 5. Finally, the direction of movement of the oblique ejector 5 during demolding is shown, which is identified by an arrow 9.
  • the rib part 4 arranged in the area of the oblique ejector 5 for sealing purposes represents an edge for the oblique ejector 5, on which the oblique ejector 5 gets stuck during demolding, as shown.
  • the oblique ejector 5 cannot be completely removed from the mold.
  • the relevant housing shell halves 3 therefore remain together at this point.
  • FIG. 3 shows the situation according to FIG. 1 again.
  • the housing shell half 3 has no rib parts 4 in the sectional view.
  • the keyboard mat 2 has integrated sealing ribs 10 at the relevant points.
  • the rib parts 4 have been omitted only in the areas of the oblique ejector 5 or the undercuts 7.
  • An associated keyboard mat 2 is shown in the third section of FIG. 3.
  • the associated keyboard mat 2 therefore has integrated sealing ribs 10 at the corresponding points and only at the corresponding points. Instead of the rib parts 4 on the housing shell halves 3, the sealing ribs 10 bring about the sealing into the housing interior of the device in question.
  • an enlarged free space is thereby created in the areas of the oblique ejectors 5, by which the oblique ejectors 5 are able to demold completely and safely when required.

Landscapes

  • Casings For Electric Apparatus (AREA)
  • Telephone Set Structure (AREA)
  • Input From Keyboards Or The Like (AREA)
EP02015352A 2001-07-26 2002-07-10 Clavier Withdrawn EP1280171A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10136520 2001-07-26
DE2001136520 DE10136520A1 (de) 2001-07-26 2001-07-26 Tastaturmatte

Publications (2)

Publication Number Publication Date
EP1280171A2 true EP1280171A2 (fr) 2003-01-29
EP1280171A3 EP1280171A3 (fr) 2005-01-05

Family

ID=7693237

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02015352A Withdrawn EP1280171A3 (fr) 2001-07-26 2002-07-10 Clavier

Country Status (2)

Country Link
EP (1) EP1280171A3 (fr)
DE (1) DE10136520A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7850378B1 (en) * 2005-05-13 2010-12-14 Apple Inc. Webbed keyboard assembly
EP1722479A3 (fr) * 2005-05-14 2011-06-29 Sommer Antriebs- und Funktechnik GmbH Émetteur portatif

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20140068266A (ko) * 2009-07-10 2014-06-05 닛본 덴끼 가부시끼가이샤 조작 키 및 단말 장치

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5734136A (en) * 1996-06-12 1998-03-31 Qualcomm Incorporated Keypad assembly with moisture-excluding seal
DE19626626C2 (de) * 1996-07-02 2000-08-03 Cherry Mikroschalter Gmbh Spritzwassergeschützte Tastatur
JP2000151772A (ja) * 1998-11-12 2000-05-30 Matsushita Electric Ind Co Ltd 携帯端末装置
GB2346739B (en) * 1999-02-12 2002-12-18 Nokia Mobile Phones Ltd Keypad structure
GB2347269B (en) * 1999-02-25 2002-08-14 Valeo Electronique Water-resistant switching device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7850378B1 (en) * 2005-05-13 2010-12-14 Apple Inc. Webbed keyboard assembly
EP1722479A3 (fr) * 2005-05-14 2011-06-29 Sommer Antriebs- und Funktechnik GmbH Émetteur portatif

Also Published As

Publication number Publication date
DE10136520A1 (de) 2003-02-20
EP1280171A3 (fr) 2005-01-05

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Owner name: GIGASET COMMUNICATIONS GMBH

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Effective date: 20100615