EP1552541B1 - Clavier etanche - Google Patents

Clavier etanche Download PDF

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Publication number
EP1552541B1
EP1552541B1 EP03775468A EP03775468A EP1552541B1 EP 1552541 B1 EP1552541 B1 EP 1552541B1 EP 03775468 A EP03775468 A EP 03775468A EP 03775468 A EP03775468 A EP 03775468A EP 1552541 B1 EP1552541 B1 EP 1552541B1
Authority
EP
European Patent Office
Prior art keywords
keyboard
rigid key
key
rigid
switch
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
EP03775468A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP1552541A1 (fr
Inventor
N.; c/o Thales Intellectual Property BERTHOU
G.; c/o Thales Intellectual Property RAYMOND
D.; c/o Thales Intellectual Property POLITZER
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.)
Thales SA
Original Assignee
Thales SA
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 Thales SA filed Critical Thales SA
Publication of EP1552541A1 publication Critical patent/EP1552541A1/fr
Application granted granted Critical
Publication of EP1552541B1 publication Critical patent/EP1552541B1/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
    • H01H13/702—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
    • H01H2221/006—Adhesive

Definitions

  • the invention relates to the waterproofness of a keyboard.
  • the invention finds a particular but not exclusive use in a keyboard equipping an aircraft dashboard.
  • a keyboard usually has at least one switch surmounted by a rigid key. An operator presses the top of the rigid key to operate the switch.
  • the switch and the rigid key form moving parts that are sensitive to the penetration of solid or liquid particles that can alter the operation of the keyboard. The presence of these particles requires keyboard maintenance either by cleaning or by changing the damaged moving parts.
  • keyboard maintenance either by cleaning or by changing the damaged moving parts.
  • a keyboard generally has several switches each associated with a rigid key. The flexible film then covers all the switches or all the rigid keys. The flexibility of the film is necessary to ensure deformation of the film during maneuvers of or switches by an operator.
  • the deformation of the film has a disadvantage for the operator. More specifically, the film introduces a flexible element between the operator's finger and the switch. This flexible element affects the control accuracy of the switch by the operator. For the operator, it is better to have only a rigid element between his finger and the switch. In the case where the flexible element is disposed between the switch and an associated rigid key, the flexible element provides additional movement of the rigid key when an operator presses the key. It is the same for a flexible film covering the key. The operator's finger then partially crushes the flexible element.
  • the control accuracy of the switch is, for example, required on an aircraft dashboard. The pilot using the keyboard of this dashboard must be able to enter data relating to the conduct of the aircraft with perfect reliability and the presence of a flexible element degrades this reliability.
  • the invention aims to overcome this defect by providing a keyboard in which no flexible element is disposed between the operator's finger and the switch while providing a seal comparable to that obtained with a continuous film covering the entire keyboard.
  • the subject of the invention is a keyboard comprising at least one switch, a rigid key enabling an operator to operate the switch, a front face having an opening through which the rigid key passes, and sealing means, preventing particles from penetrating between the rigid key and the opening, characterized in that the sealing means comprise a flexible membrane traversed by the rigid key, fixed to the key and to the front face.
  • the invention is not limited to a single switch surmounted by a rigid key.
  • the invention is particularly well suited to a keyboard having a large number of switches each surmounted by a rigid key.
  • US-A-4862166 discloses an expanded keyboard corresponding to the preamble of claim 1, with a flexible film which covers all the switches ensuring the waterproofness of the keyboard.
  • the keyboard shown in FIG. 1 comprises a switch 1 disposed on a support plate 2.
  • the support plate 2 is, for example, a printed circuit board providing electrical connections necessary for the operation of the switch 1.
  • the support plate 2 can carry several Switches 1.
  • the keyboard further comprises a rigid key 3, surmounting the switch 1, and allowing an operator to operate the switch 1.
  • the material of the rigid key 3 is chosen so as to avoid any distortion of the key 3 when the operator presses the key 3.
  • the keyboard also comprises a front face 4 comprising an opening 5 through which the rigid key 3 passes. Sealing means prevent particles located outside the keyboard , that is to say where the operator is located, to penetrate between the rigid key 3 and the front face 4 by the space left free between the rigid key 3 and the opening 5. These particles little consist of dust particles present in the ambient air or liquids liable to be knocked over the keyboard by the operator.
  • the sealing means comprise a flexible membrane 6 traversed by the rigid key 3.
  • the flexible membrane 6 is attached to both the front face 4 and rigid key 3 advantageously by gluing.
  • the keyboards comprise means for limiting the stroke of the rigid key 3 with respect to the front face 4. More specifically, these means make it possible to prevent excessive support of the operator on the rigid key 3. 'damages the switch 1.
  • the limiting means comprise for example a shoulder 8 belonging to the rigid key 3.
  • the undercut 8 forms part 9 of the rigid key 3, part can not penetrate inside the keyboard through the opening 5.
  • Inside the keyboard is the space between the support plate 2 and the front panel 4.
  • the switch 1 is located inside the keyboard. Thus, when the operator presses the rigid key 3, it sinks until the shoulder 8 comes into abutment against the front face 4.
  • the shoulder 8 is used to fix the flexible membrane 6 and the shoulder 8 comes into contact with the front face 4 via the flexible membrane 6, which makes it possible to soften any impact between the rigid key 3 and the front face 4 when these two elements come into contact with one another. Softening the shock reduces the sound level when the operator is using the keyboard.
  • the stroke of the key is represented by the rating C.
  • the rigid key 3 is transparent and the keyboard comprises means for illuminating the rigid key 3 by the interior of the keyboard.
  • These lighting means comprise, for example, light-emitting diodes 10 fixed on the support plate 2 inside the keyboard.
  • the light-emitting diodes are, for example, fed by printed tracks on the support plate 2.
  • the top 11 of the rigid key 3 is covered with an opaque material such as, for example, paint, and then locally to remove the opaque material, for example by etching.
  • the engraving may, for example, be in the form of one or more alphanumeric characters. The lighting will thus make it possible to visualize this or these characters.

Landscapes

  • Input From Keyboards Or The Like (AREA)
  • Push-Button Switches (AREA)
EP03775468A 2002-10-18 2003-10-03 Clavier etanche Expired - Lifetime EP1552541B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR0213006 2002-10-18
FR0213006A FR2846144B1 (fr) 2002-10-18 2002-10-18 Clavier etanche
PCT/FR2003/002911 WO2004038747A1 (fr) 2002-10-18 2003-10-03 Clavier etanche

Publications (2)

Publication Number Publication Date
EP1552541A1 EP1552541A1 (fr) 2005-07-13
EP1552541B1 true EP1552541B1 (fr) 2006-02-08

Family

ID=32050522

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03775468A Expired - Lifetime EP1552541B1 (fr) 2002-10-18 2003-10-03 Clavier etanche

Country Status (9)

Country Link
US (1) US20060038706A1 (pt)
EP (1) EP1552541B1 (pt)
AU (1) AU2003283494A1 (pt)
BR (1) BR0315424A (pt)
CA (1) CA2502045A1 (pt)
DE (1) DE60303519T2 (pt)
ES (1) ES2254979T3 (pt)
FR (1) FR2846144B1 (pt)
WO (1) WO2004038747A1 (pt)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113140421A (zh) * 2021-04-23 2021-07-20 维沃移动通信有限公司 电子设备和电子设备的加工方法

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TW201009538A (en) * 2008-08-20 2010-03-01 Pegatron Corp Portable electronic apparatus
KR101934714B1 (ko) * 2012-11-28 2019-01-03 삼성전자주식회사 키 버튼 장치

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3041859A1 (de) * 1980-11-06 1982-06-03 Preh Elektro Feinmechanik Tastatur
US4634623A (en) * 1983-07-18 1987-01-06 The Gates Corporation Conductive elastomeric ink composition
EP0263652B1 (en) * 1986-10-06 1993-03-10 Brother Kogyo Kabushiki Kaisha Input device
JP2710181B2 (ja) * 1992-01-28 1998-02-10 日本電気株式会社 照光式キートップの構造
EP0685860A1 (en) * 1994-06-03 1995-12-06 Hewlett-Packard Company Full travel, sealed, fully backlighted keyboard
JP3782521B2 (ja) * 1996-08-23 2006-06-07 富士通コンポーネント株式会社 押釦構造およびキーボード

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113140421A (zh) * 2021-04-23 2021-07-20 维沃移动通信有限公司 电子设备和电子设备的加工方法

Also Published As

Publication number Publication date
FR2846144B1 (fr) 2005-04-15
WO2004038747A1 (fr) 2004-05-06
DE60303519D1 (de) 2006-04-20
EP1552541A1 (fr) 2005-07-13
BR0315424A (pt) 2005-08-16
AU2003283494A1 (en) 2004-05-13
US20060038706A1 (en) 2006-02-23
ES2254979T3 (es) 2006-06-16
CA2502045A1 (fr) 2004-05-06
FR2846144A1 (fr) 2004-04-23
DE60303519T2 (de) 2006-08-24

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