JPH10162686A - Key sheet rubber - Google Patents

Key sheet rubber

Info

Publication number
JPH10162686A
JPH10162686A JP8317307A JP31730796A JPH10162686A JP H10162686 A JPH10162686 A JP H10162686A JP 8317307 A JP8317307 A JP 8317307A JP 31730796 A JP31730796 A JP 31730796A JP H10162686 A JPH10162686 A JP H10162686A
Authority
JP
Japan
Prior art keywords
sheet rubber
key sheet
substrate
key
case
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.)
Pending
Application number
JP8317307A
Other languages
Japanese (ja)
Inventor
Takeyuki Nagane
根 健 之 長
Susumu Igarashi
進 五十嵐
Yasuhiko Akiyama
山 恭 彦 秋
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co Ltd
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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP8317307A priority Critical patent/JPH10162686A/en
Publication of JPH10162686A publication Critical patent/JPH10162686A/en
Pending legal-status Critical Current

Links

Abstract

PROBLEM TO BE SOLVED: To provide a simply assembled key sheet rubber by providing compressiondeformable ribs at the peripheral edge section of the surface of the key sheet rubber, inserting the ribs into the recesses of a case, and concurrently positioning and fixing them and providing a splash-proof function. SOLUTION: A key sheet rubber 11 is fitted to the back face of a case 14, the ribs 12 of the key sheet rubber 11 are pressed into the recesses 15 on the back face of the case 14, and the case 14 and key sheet rubber 11 are positioned. Contact point terminals 16 are stuck to a substrate 17, the substrate 17 is fixed to a chassis 18 by pawls 19, the chassis 18 is arranged below the key sheet rubber 11, and the pawls 21 of the chassis 18 are hooked on the pawls 20 of the case 14 to fix the chassis 18. When force is applied to a button 13 in the direction of an arrow F, the dome-like contact point terminal 16 is warped into contact with a contact point section on the surface of the substrate 17 for conduction. When the force in the direction of the arrow F is removed from the button 13, the contact of the substrate 17 is removed by the reaction of the dome-like contact point terminal 16 for nonconduction.

Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION

【0001】[0001]

【発明の属する技術分野】本発明は、携帯型情報端末装
置や携帯型無線電話装置等のキーパッドに使用されるキ
ーシートゴムに関する。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a key sheet rubber used for a keypad of a portable information terminal device, a portable radio telephone device and the like.

【0002】[0002]

【従来の技術例】従来、キーシートゴムの防沫構造は、
図3に示すように、キーシートゴム2の表面の周縁部に
圧縮変形を容易としたエッジ部3を形成し、キーシート
ゴム2により押下される接点端子4が構成された基板5
を筐体1の爪6に引っ掛けることにより、キーシートゴ
ム2のエッジ部3が筐体1の裏面と圧接して、筐体1の
裏面とキーシートゴム2の周囲をシールすることにより
達成される。
2. Description of the Related Art Conventionally, the splash-proof structure of key sheet rubber is as follows.
As shown in FIG. 3, a substrate 5 on which an edge portion 3 which facilitates compression deformation is formed at a peripheral portion of the surface of the key sheet rubber 2 and on which a contact terminal 4 pressed by the key sheet rubber 2 is formed.
Is hooked on the claws 6 of the housing 1 so that the edge 3 of the key sheet rubber 2 is pressed against the back surface of the housing 1 to seal the back surface of the housing 1 and the periphery of the key sheet rubber 2. You.

【0003】[0003]

【発明が解決しようとする課題】しかしながら、従来の
キーシートゴムの防沫構造は、エッジ部3を筐体1の裏
面に圧接しているため、ゴムの反力が作用し、また接点
端子4が構成された基板5を筐体1の爪6に引っ掛けて
いるため、組立性が悪く、組立による位置ずれが発生し
やすいという課題があった。
However, in the conventional splash-proof structure of the key sheet rubber, since the edge portion 3 is pressed against the back surface of the housing 1, a reaction force of the rubber acts, and the contact terminal 4 is pressed. Since the substrate 5 configured as described above is hooked on the claws 6 of the housing 1, there is a problem that the assemblability is poor and a positional shift due to the assembling is likely to occur.

【0004】本発明は、上記課題を解決するもので、組
立が簡単で容易に位置決めができ、防沫構造を可能とし
たキーシートゴムを提供することを目的とする。
An object of the present invention is to solve the above-mentioned problems, and an object of the present invention is to provide a key sheet rubber which is easy to assemble, can be easily positioned, and has a splashproof structure.

【0005】[0005]

【課題を解決するための手段】本発明は、上記目的を達
成するために、圧縮変形可能なリブをキーシートゴム表
面の周縁部に備え、このリブを筐体の凹部へ嵌め込むこ
とにより、位置決め固定と防沫機能を同時に実現するよ
うにしたものである。
According to the present invention, in order to achieve the above object, a compressible deformable rib is provided on a peripheral portion of a surface of a key sheet rubber, and the rib is fitted into a concave portion of a housing. The positioning and fixing and the splash-proof function are simultaneously realized.

【0006】[0006]

【発明の実施の形態】本発明の請求項1記載の発明は、
圧縮変形可能としたリブをキーシートゴム表面の周縁部
に備え、リブを筐体の裏面に形成した凹部に嵌め込むこ
とにより、筐体への位置決め固定および防沫機能を可能
としたキーシートゴムであり、簡単な組立で筐体とキー
シートゴムの位置が決まり、かつ筐体とキーシートゴム
の周縁部がシールされ、防沫構造が可能となる。
BEST MODE FOR CARRYING OUT THE INVENTION
A key sheet rubber that has a rib that can be compressed and deformed is provided on the periphery of the surface of the key sheet rubber, and the rib is fitted into a recess formed on the back surface of the housing to enable positioning and fixing to the housing and a splash-proof function. Thus, the positions of the housing and the key sheet rubber are determined by simple assembly, and the peripheral edges of the housing and the key sheet rubber are sealed, so that a splash-proof structure becomes possible.

【0007】本発明の請求項2記載の発明は、キーシー
トゴムをキーボタンを含めて全体をゴムで一体成形した
ものであり、キーシートゴムを安価に製造できる。
According to a second aspect of the present invention, the key sheet rubber, including the key buttons, is integrally formed of rubber, so that the key sheet rubber can be manufactured at low cost.

【0008】本発明の請求項3記載の発明は、キーシー
トゴムをキーボタンを樹脂製としてゴムで一体成形した
ものであり、キーボタンのデザインを種々に変更でき
る。
In the invention according to claim 3 of the present invention, the key sheet rubber is formed integrally with the key button made of resin, and the key button design can be changed in various ways.

【0009】(実施の形態)以下、本発明の一実施の形
態について図面を参照しながら説明する。図1は本実施
の形態におけるキーシートゴムの外観斜視図を示してい
る。図1において、キーシートゴム11の表面の周縁部
には、圧縮変形を容易としたリブ12が形成されてい
る。またキーシートゴム11の表面には導通をON、O
FFさせるためのボタン13が形成されている。
(Embodiment) An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is an external perspective view of a key sheet rubber according to the present embodiment. In FIG. 1, a rib 12 for facilitating compression deformation is formed on a peripheral portion of the surface of the key sheet rubber 11. On the surface of the key sheet rubber 11, conduction is ON, O
A button 13 for performing FF is formed.

【0010】図2は本実施の形態におけるキーシートゴ
ムの防沫構造の断面図を示している。筐体14の裏面に
は、リブ12が係合されるための凹部15がキーシート
ゴム11のリブ12と同様の周長で形成される。ドーム
状の接点端子16は、基板17との導通をとるために、
キーシートゴム11と基板17の間に構成される。
FIG. 2 is a cross-sectional view of the key sheet rubber splash-proof structure according to the present embodiment. A concave portion 15 for engaging the rib 12 is formed on the rear surface of the housing 14 with a peripheral length similar to that of the rib 12 of the key sheet rubber 11. The dome-shaped contact terminal 16 is used to establish conduction with the substrate 17.
It is configured between the key sheet rubber 11 and the substrate 17.

【0011】上記キーシートゴム部の組立は次のように
して行われる。まず筐体12の裏面にキーシートゴム1
1を取り付ける。ここで筐体14の裏面の凹部15にキ
ーシートゴム11のリブ12を圧入する。この状態で筐
体14とキーシートゴム11は位置決めされる。また、
筐体14とキーシートゴム11は仮固定され、組立時に
外れる心配はない。次に接点端子16を基板17に貼リ
付け、この基板17をシャーシ18に爪19により固定
するとともに、シャーシ18をキーシートゴム11の下
に配置し、筐体14の爪20にシャーシ18の爪21を
引っ掛けて固定する。
The key sheet rubber portion is assembled as follows. First, the key sheet rubber 1
Attach 1. Here, the ribs 12 of the key sheet rubber 11 are pressed into the recesses 15 on the back surface of the housing 14. In this state, the housing 14 and the key sheet rubber 11 are positioned. Also,
The housing 14 and the key sheet rubber 11 are temporarily fixed, and there is no fear that they will come off during assembly. Next, the contact terminals 16 are adhered to the substrate 17, the substrate 17 is fixed to the chassis 18 by the claws 19, and the chassis 18 is arranged below the key sheet rubber 11, and the chassis 18 is The hook 21 is hooked and fixed.

【0012】次にキーシートゴム部の動作について説明
する。ボタン13に矢印Fの方向に力を加えると、ドー
ム状の接点端子16が撓み、基板17の表面の接点部に
接触し導通する。ボタン13に矢印Fの力を取り除く
と、ドーム状の接点端子16の反力により基板17の接
触はなく導通しない。
Next, the operation of the key sheet rubber portion will be described. When a force is applied to the button 13 in the direction of arrow F, the dome-shaped contact terminal 16 bends and contacts the contact portion on the surface of the substrate 17 to conduct. When the force indicated by the arrow F is removed from the button 13, there is no contact with the substrate 17 due to the reaction force of the dome-shaped contact terminal 16, and the button 13 does not conduct.

【0013】上記実施の形態においてキーシートゴム1
1は、全体をシリコンゴムや塩化ビニルを使用して一体
に形成するか、またはボタン13のみを樹脂で形成して
ゴムで一体成形した2材質のキーシートにしてもよい。
後者の場合、キーボタン13のデザインを種々に変更す
ることができる。
In the above embodiment, the key sheet rubber 1
1 may be formed integrally using silicon rubber or vinyl chloride, or may be a two-material key sheet formed integrally with rubber by forming only the button 13 with resin.
In the latter case, the design of the key button 13 can be variously changed.

【0014】[0014]

【発明の効果】本発明は、上記実施の形態から明らかな
ように、キーシートゴム表面の周縁部に圧縮変形を容易
としたリブを筐体の裏面にリブと同様な周長で形成され
た凹部に係合することにより、筐体とキーシートゴムと
の位置が決まり、かつ防沫構造を簡単な組立で実現でき
るキーシートゴムを提供できる。
According to the present invention, as is apparent from the above embodiment, a rib for facilitating compressive deformation is formed on the periphery of the surface of the key sheet rubber with the same peripheral length as the rib on the back surface of the housing. By engaging with the concave portion, the position of the housing and the key sheet rubber is determined, and the key sheet rubber capable of realizing the splash-proof structure by simple assembly can be provided.

【図面の簡単な説明】[Brief description of the drawings]

【図1】本発明の一実施の形態におけるのキーシートゴ
ムの外観斜視図
FIG. 1 is an external perspective view of a key sheet rubber according to an embodiment of the present invention.

【図2】同キーシートゴムの防沫構造断面図FIG. 2 is a cross-sectional view of the key sheet rubber in a splash-proof structure.

【図3】従来のキーシートゴムの防沫構造断面図FIG. 3 is a sectional view of a conventional key sheet rubber having a splash-proof structure.

【符号の説明】[Explanation of symbols]

11 キーシートゴム 12 リブ 13 ボタン 14 筐体 15 凹部 16 接点端子 17 基板 18 シャーシ 19、20、21 爪 DESCRIPTION OF SYMBOLS 11 Key sheet rubber 12 Rib 13 Button 14 Housing 15 Depression 16 Contact terminal 17 Substrate 18 Chassis 19, 20, 21 Claw

Claims (3)

【特許請求の範囲】[Claims] 【請求項1】 圧縮変形可能としたリブをキーシートゴ
ム表面の周縁部に備え、前記リブを筐体の裏面に形成し
た凹部に嵌め込むことにより、前記筐体への位置決め固
定および防沫機能を可能としたキーシートゴム。
1. A key which can be compressed and deformed is provided on a peripheral portion of the surface of a key sheet rubber, and the rib is fitted into a concave portion formed on the back surface of the housing, thereby positioning and fixing to the housing and a splash-proof function. Key sheet rubber that made it possible.
【請求項2】 キーボタンを含めて全体をゴムで一体成
形した請求項1記載のキーシートゴム。
2. The key sheet rubber according to claim 1, wherein the whole, including the key buttons, is integrally formed of rubber.
【請求項3】 キーボタンを樹脂製としてゴムで一体成
形した請求項1記載のキーシートゴム。
3. The key sheet rubber according to claim 1, wherein the key buttons are made of resin and are integrally formed of rubber.
JP8317307A 1996-11-28 1996-11-28 Key sheet rubber Pending JPH10162686A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8317307A JPH10162686A (en) 1996-11-28 1996-11-28 Key sheet rubber

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8317307A JPH10162686A (en) 1996-11-28 1996-11-28 Key sheet rubber

Publications (1)

Publication Number Publication Date
JPH10162686A true JPH10162686A (en) 1998-06-19

Family

ID=18086759

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8317307A Pending JPH10162686A (en) 1996-11-28 1996-11-28 Key sheet rubber

Country Status (1)

Country Link
JP (1) JPH10162686A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2353251A (en) * 1999-08-20 2001-02-21 Nec Corp Water-proof and dust-proof key-switch arrangement
JP2004327420A (en) * 2003-04-11 2004-11-18 Polymatech Co Ltd Key sheet and method of manufacturing key sheet
US7124313B1 (en) 1999-09-21 2006-10-17 Nec Corporation Data processing device and method of controlling power consumption in back-light in data processing device
JP2012226976A (en) * 2011-04-20 2012-11-15 Omron Corp Push button switch and assembling method for the same
JP2012226975A (en) * 2011-04-20 2012-11-15 Omron Corp Push button switch

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2353251A (en) * 1999-08-20 2001-02-21 Nec Corp Water-proof and dust-proof key-switch arrangement
GB2353251B (en) * 1999-08-20 2002-03-20 Nec Corp Water-proof and dust-proof structure of key switch device
US7124313B1 (en) 1999-09-21 2006-10-17 Nec Corporation Data processing device and method of controlling power consumption in back-light in data processing device
JP2004327420A (en) * 2003-04-11 2004-11-18 Polymatech Co Ltd Key sheet and method of manufacturing key sheet
JP4512346B2 (en) * 2003-04-11 2010-07-28 ポリマテック株式会社 Key sheet and key sheet mounting structure
JP2012226976A (en) * 2011-04-20 2012-11-15 Omron Corp Push button switch and assembling method for the same
JP2012226975A (en) * 2011-04-20 2012-11-15 Omron Corp Push button switch

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