EP1215696A2 - Ensemble d'un clavier à touches pour un dispositif électrique - Google Patents

Ensemble d'un clavier à touches pour un dispositif électrique Download PDF

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Publication number
EP1215696A2
EP1215696A2 EP01129650A EP01129650A EP1215696A2 EP 1215696 A2 EP1215696 A2 EP 1215696A2 EP 01129650 A EP01129650 A EP 01129650A EP 01129650 A EP01129650 A EP 01129650A EP 1215696 A2 EP1215696 A2 EP 1215696A2
Authority
EP
European Patent Office
Prior art keywords
keyboard
contact
key element
keyboard arrangement
mat
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
EP01129650A
Other languages
German (de)
English (en)
Other versions
EP1215696A3 (fr
EP1215696B1 (fr
Inventor
Andreas Brooren
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
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 EP1215696A2 publication Critical patent/EP1215696A2/fr
Publication of EP1215696A3 publication Critical patent/EP1215696A3/fr
Application granted granted Critical
Publication of EP1215696B1 publication Critical patent/EP1215696B1/fr
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
    • H01H13/70—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
    • H01H13/78—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 characterised by the contacts or the contact sites
    • H01H13/785—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 characterised by the contacts or the contact sites characterised by the material of the contacts, e.g. conductive polymers
    • 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
    • H01H2201/00—Contacts
    • H01H2201/022—Material
    • H01H2201/032—Conductive polymer; Rubber
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2215/00—Tactile feedback
    • H01H2215/004—Collapsible dome or bubble
    • H01H2215/008—Part of substrate or membrane
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2221/00—Actuators
    • H01H2221/008—Actuators other then push button
    • H01H2221/012—Joy stick type
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2231/00—Applications
    • H01H2231/022—Telephone handset
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H25/00—Switches with compound movement of handle or other operating part
    • H01H25/04—Operating part movable angularly in more than one plane, e.g. joystick
    • H01H25/041—Operating part movable angularly in more than one plane, e.g. joystick having a generally flat operating member depressible at different locations to operate different controls

Definitions

  • the present invention relates to a keyboard arrangement for an electronic device, especially for a mobile electronic device, such as a mobile radio terminal, comprising at least one keyboard mat with at least an operating element, the at least one operating element on an actuation side of the at least protrudes a keyboard mat and wherein the at least one Operating element on one side facing away from the actuation side Provide contact side with electrically conductive contact means is, further the control element when pressurized relocatable from a rest position to a contact position in which at least two electrical ones assigned to it Contacts of an electronic circuit via the contact means are electrically connectable or connected.
  • FIG. 6 shows a keyboard arrangement 210 according to the State of the art shown.
  • This keyboard assembly 210 is constructed in a modular manner and comprises a keyboard mat 212 which key elements 214 are formed.
  • the keyboard mat 212 is glued to a polycarbonate film 216, this polycarbonate film 216 in the area of the key elements 214 of the keyboard mat dome-shaped elevations 218 has, which are embossed in the polycarbonate film 216.
  • On the side of the polycarbonate film facing away from the keyboard mat 212 216 is a spacer plate 220 with openings arranged in the area of the domes 218.
  • the polycarbonate film 216 is on at least on their side facing away from the keyboard mat 212 in the area of the domes 218 with a contact lacquer, for example from a graphite-silver mixture or the like, Mistake.
  • a contact lacquer for example from a graphite-silver mixture or the like, Mistake.
  • the pressurization moves the key element 214 back to the starting position shown in FIG. 6.
  • the calotte 218 moves out of the deflected position in accordance with 218 'back to the starting position. This will make the electrical Connection between the two contacts 228a and 228b canceled again.
  • circuit board 224 techniques and materials use an arrangement of different conductor tracks or various contacts with a very small distance, even for mass production allow. To ensure this, it is necessary costly manufacturing process for the PCBs or valuable materials for the conductor tracks, such as gold. This increases the Manufacturing costs of one with the keyboard arrangement according to FIG 6 additionally trained electronic device. Because of making the electrical connection small contacts required between contacts 228a and 228b Dimensioning creates the further problem that the keyboard layout and the circuit board assigned to this opposite external influences, especially pollution, very much becomes sensitive. Is stored, for example, in the area of Contacts 228a, 228b dust off, so there is sufficient contact no longer guaranteed by the deflected calotte 218 '.
  • This task is accomplished through a keyboard layout for a electronic device, in particular for a mobile electronic device, such as a mobile radio terminal, solved, comprising at least one keyboard mat at least one control element, the at least one Control element on an actuation side of the at least protrudes a keyboard mat and at least that an operating element on a side facing away from the actuation side Contact side with electrically conductive contact means is provided, further the control element when pressurized from a rest position to a contact position is shiftable, in which at least two assigned to it electrical contacts of an electronic circuit the contact means can be connected or connected in an electrically conductive manner are, and with the keyboard arrangement according to the invention it is also provided that the contact means one respective control element separately assigned contact body made of electrically conductive, elastically deformable material include.
  • the invention provides that the keyboard mat in the area of the at least one control element on their contact side with a contact body provided electrically conductive, elastically deformable material is.
  • a contact body provided electrically conductive, elastically deformable material is.
  • the geometric Shape of the contact body can be provided according to the invention be that it is essentially cylindrical or bulbous Shape, preferably essentially circular cylindrical Form, has and with one of its bases on the contact side of the control element is set. He can too include conical sections to facilitate assembly. The contact body is then put together when pressure is applied pressed on the electronic circuit with the control element, this can deform accordingly, whereby - as already stated above - the elastic material any existing dust particles evades and where the contact surface accordingly under pressure increased.
  • the at least one control element is integrally formed on the keyboard mat.
  • the formation of the at least one control element integral on the keyboard mat allows the keyboard layout to produce as a single assembly, whereby the further Assembly of the keyboard arrangement or the one provided with it electronic device is simplified.
  • At least an operating element via a resilient connection area is connected to the keyboard mat, at least a control when pressurized under elastic deformation of the connection area against one Spring force can be shifted from the rest position to the contact position and when the pressure is released automatically moved back to the rest position.
  • a control when pressurized under elastic deformation of the connection area against one Spring force can be shifted from the rest position to the contact position and when the pressure is released automatically moved back to the rest position.
  • the keyboard mat is advantageously made of soft elastic Material, preferably made of rubber, especially silicone manufactured. This choice of material ensures at low Material and manufacturing costs a reliable function and good haptic properties of the controls of the keyboard mat. This is particularly the case if at least an operating element executed as a push button is.
  • the keyboard mat a plurality of grouped Controls includes and that this plurality of controls a common key element is assigned, the key element being able to tumble when pressurized or / and can be depressed and when pressurized the common key element at least one of these assigned control element from the rest position in the contact position is shiftable.
  • Such a staggering movable or / and depressable button element allows easy operation of complex electronic menu structures Contraption. This is the case, for example, with mobile radio terminals required, which with increasingly comprehensive functions be equipped with hierarchical menu structures are selectable.
  • the invention is particularly suitable for a reliable constructive realization of such Key elements with little manufacturing effort and low manufacturing costs.
  • the key element mentioned above is used as a so-called navigation key with which navigation in four or possibly eight in regular Angular distances possible over 360 ° distributed directions should be provided in a further development of the invention be that the button element four controls are assigned, with the four controls in the area the corner points of one inscribed in the contour of the key element Square are arranged. Ergonomic operation and gives an attractive visual appearance in this variant of the invention, for example, if the key element has a substantially circular contour.
  • each of the controls assigned to the key element Has shaft section and that the key element corresponding Has recesses for storing the key element on the controls assigned to it take up one shaft section each.
  • the key element made of a rubber material, preferably silicone or / and preferably with higher hardness than the keyboard mat or / and the contact body is made.
  • the invention further relates to an electronic device, especially a mobile electronic device, such as a mobile radio terminal comprising a keyboard arrangement according to one of the preceding claims.
  • a keyboard arrangement according to the invention is general in FIG designated 10. This is for installation in a Electronic device, not shown, in the example Mobile radio terminal, provided and includes a keyboard mat 12. From the keyboard mat 12, in particular from its actuation side 14 jump out of several operating elements 16, which are designed as push buttons. Furthermore, the Keyboard arrangement 10 a key element 18, which around the in Figure 2 shown tilt axes A and B in a total of four tilt directions is tiltable. In the middle right in Figure 1 A region 20 is provided in the area of the keyboard arrangement 10 with a central opening 22 into which a microphone can be used. There are also 12 recesses in the keyboard mat 24 in the immediate vicinity of the enclosure 20 and notches 26 are provided which are used to determine the Keyboard mat 12 in the electronic device, not shown serve.
  • the keyboard mat 12 is made of a soft elastic Made of silicone material, the push buttons 16 are integrally formed with the keyboard mat 12.
  • each control element 28 comprises a pin-shaped Shank 30, a substantially circular cylindrical Flange 32 and a conical connection area 34, about which the control element 28 with the keyboard mat 12th connected is.
  • the exact structure and functionality of the controls 16 and 28 is exemplified below with reference to Figures 4 and 5 described for an operating element 28.
  • the 4 shows a sectional view along the section line IV-IV from FIG. 2 shows the keyboard arrangement according to the invention including the tumbling movable key element 18. This is on the four controls arranged at the corner points of a square 28 in parallel to the actuating side 14 of the Keyboard assembly 10 is not slidably mounted.
  • the key element 18 has recesses 36 in which each insert a shaft 30 of an operating element 28 is.
  • the controls 28 at their ends 38 remote from the keyboard mats conical are the controls 28 at their ends 38 remote from the keyboard mats conical.
  • the key element 18 lies with his Bottom 40 on a step surface 42 of each control 28 on, the step surface 42 from the transition from the shaft 30 to the flange 32.
  • FIG. 5 also shows how the connection area 34 connects the control element 28 to the keyboard mat 12.
  • the connection area 34 can also be seen from FIG. 3 frustoconical with a small wall thickness.
  • On the contact side facing away from the actuation side 14 44 is a pill-shaped one below each control Contact body 46 formed.
  • This contact body 46 is made made of conductive silicone with low (Shore A) hardness.
  • the contact body 46 is on the contact side 44 of the keyboard mat 12 fixed in the area of the control elements 28 by gluing. For example, one presses the button element 18 accordingly Arrow P according to Figure 5, so the control element from its rest position shown in FIG Deformation of the connection area 34 in a contact position relocated. The is in this contact position Contact body 46 in mutual contact with one in FIG.
  • circuit board 48 on which one electronic circuit is realized.
  • contact body 46 With mutual mechanical Contact between circuit board 48 and contact body 46 bridges the distance between two electrical, on the PCB implemented contacts 50 and 52 and thus ensures for an electrical connection of these contacts.
  • the Pressurization released according to arrow P d. H. if the key element 18 is released again, it is moved this automatically by reshaping the connection area 34 in its starting position, the contact body 46 stands out from the circuit board 48 and the control element 28 together with contact body 46 in that shown in Figure 5 Return to rest position.
  • the invention shows, compared to the state shown in Figure 6 der Kunststoff, a highly simplified keyboard arrangement, which is inexpensive to manufacture and high functional reliability offers. If you put yourself under renewed attraction of Figure 5 before the case that in the area of the two contacts 50, 52 of the circuit board 48 dust deposits are present, so the invention enables despite these dust deposits a secure electrical connection of the two contacts 50, 52, since the contact body 46 is under pressure according to arrow P due to its soft elastic material properties deformed and thus evade deposits and for reliable contact of contacts 50 and 52 can worry.
  • Two adjacent controls can also be used 28, as shown in Figure 5, in close proximity to each other arrange without affecting their operation would be. This is a further miniaturization of the Keyboard layout according to a required miniaturization the associated electronic device possible.
  • the invention can be proportionately based on the simple constructive design that is inexpensive available materials for realizing the invention and the favorable properties with regard to contacting of PCB contacts considerable savings in the manufacture of the keyboard arrangement according to the invention and achieve when using corresponding circuit boards.

Landscapes

  • Input From Keyboards Or The Like (AREA)
  • Push-Button Switches (AREA)
EP20010129650 2000-12-14 2001-12-12 Ensemble d'un clavier à touches pour un dispositif électrique Expired - Lifetime EP1215696B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE2000162380 DE10062380A1 (de) 2000-12-14 2000-12-14 Tastaturanordnung für eine elektronische Vorrichtung und elektronische Vorrichtung
DE10062380 2000-12-14

Publications (3)

Publication Number Publication Date
EP1215696A2 true EP1215696A2 (fr) 2002-06-19
EP1215696A3 EP1215696A3 (fr) 2004-03-10
EP1215696B1 EP1215696B1 (fr) 2007-11-07

Family

ID=7667165

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20010129650 Expired - Lifetime EP1215696B1 (fr) 2000-12-14 2001-12-12 Ensemble d'un clavier à touches pour un dispositif électrique

Country Status (2)

Country Link
EP (1) EP1215696B1 (fr)
DE (2) DE10062380A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007045871B4 (de) * 2007-09-25 2009-10-29 Albrecht Jung Gmbh & Co. Kg Tastenfeld
DE102008021606B4 (de) * 2008-04-30 2011-07-28 Gigaset Communications GmbH, 81379 Tastaturmatte

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4687200A (en) * 1983-08-05 1987-08-18 Nintendo Co., Ltd. Multi-directional switch
US4710597A (en) * 1984-06-26 1987-12-01 Tabur Caoutchouc Keyboard for the control box of an electric apparatus
US4800243A (en) * 1986-04-24 1989-01-24 Fuji Rubber Co. Limited Contactor rubber
US5107083A (en) * 1990-02-02 1992-04-21 Kitagawa Industries Co., Ltd. Resiliently deformable pushbutton switch having a contact member carrying a conductive material
JPH1012088A (ja) * 1996-06-25 1998-01-16 Oki Electric Ind Co Ltd ポリドームスイッチの構造

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB8402974D0 (en) * 1984-02-03 1984-03-07 Npm Int Switches and keyboards
US6102802A (en) * 1997-10-01 2000-08-15 Armstrong; Brad A. Game controller with analog pressure sensor(s)
US5521342A (en) * 1994-12-27 1996-05-28 General Motors Corporation Switch having combined light pipe and printed circuit board
DE19746843A1 (de) * 1997-10-23 1999-05-12 Bosch Gmbh Robert Multifunktionstaste
DE29821579U1 (de) * 1998-12-02 1999-05-27 Deutsche Telephonwerk Kabel Einstückige Tastatur

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4687200A (en) * 1983-08-05 1987-08-18 Nintendo Co., Ltd. Multi-directional switch
US4710597A (en) * 1984-06-26 1987-12-01 Tabur Caoutchouc Keyboard for the control box of an electric apparatus
US4800243A (en) * 1986-04-24 1989-01-24 Fuji Rubber Co. Limited Contactor rubber
US5107083A (en) * 1990-02-02 1992-04-21 Kitagawa Industries Co., Ltd. Resiliently deformable pushbutton switch having a contact member carrying a conductive material
JPH1012088A (ja) * 1996-06-25 1998-01-16 Oki Electric Ind Co Ltd ポリドームスイッチの構造

Also Published As

Publication number Publication date
EP1215696A3 (fr) 2004-03-10
DE50113229D1 (de) 2007-12-20
EP1215696B1 (fr) 2007-11-07
DE10062380A1 (de) 2002-07-04

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