JPH07295705A - Keyboard - Google Patents

Keyboard

Info

Publication number
JPH07295705A
JPH07295705A JP6091127A JP9112794A JPH07295705A JP H07295705 A JPH07295705 A JP H07295705A JP 6091127 A JP6091127 A JP 6091127A JP 9112794 A JP9112794 A JP 9112794A JP H07295705 A JPH07295705 A JP H07295705A
Authority
JP
Japan
Prior art keywords
upper case
printed circuit
circuit board
case
boss
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
JP6091127A
Other languages
Japanese (ja)
Inventor
Kenji Hirakawa
健治 平川
Akira Michiura
陽 道浦
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.)
Yokogawa Electric Corp
Original Assignee
Yokogawa Electric 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 Yokogawa Electric Corp filed Critical Yokogawa Electric Corp
Priority to JP6091127A priority Critical patent/JPH07295705A/en
Publication of JPH07295705A publication Critical patent/JPH07295705A/en
Pending legal-status Critical Current

Links

Landscapes

  • Push-Button Switches (AREA)
  • Input From Keyboards Or The Like (AREA)

Abstract

PURPOSE:To provide the keyboard which reduces weight and facilitates assembly by eliminating the necessity of fixing a printed circuit board with screws by fixing the printed circuit board with the bosses of an upper case and the bosses of a lower case. CONSTITUTION:This keyboard is composed of a printed circuit board 1 where key switches are provided, upper case 2 composed of a low-rigidity material for providing hole parts to insert the key switches and the bosses, lower case 3 compose of a low-rigidity material for providing the bossed to press the printed circuit board 1 with the bosses of the upper case 2, and key sheet 4 for covering the hole parts of the upper case 2 and fitting the upper case 2. A key switch 1a of the printed circuit board 1 is inserted to a hole part 2a of the upper case 2. Then, the lower case 3 is fitted to the upper case 2, and the upper case 2 and the lower case 3 are fixed by screws 5. The key sheet 4 is fitted to the upper case 2.

Description

【発明の詳細な説明】Detailed Description of the Invention

【0001】[0001]

【産業上の利用分野】本発明は、重量が軽く、組立が容
易なキーボードに関する。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a keyboard which is light in weight and easy to assemble.

【0002】[0002]

【従来の技術】産業用コンピュータや制御装置に使用さ
れるキーボードは、防塵の観点からキーシートを用いた
フラットキーボードタイプのものが多い。このような従
来のキーボードの構成を図5に示す。図において、11
はプリント基板で、キースイッチ111が設けられる。
12は鋼板で、キースイッチ111が挿入される穴部1
21を有する。13はスタッドで、鋼板12に結合し、
プリント基板11をネジ131により固定する。14は
キーシートで、鋼板12の穴部121を覆うと共に、鋼
板12に取り付けられる。15はケースで、鋼板12が
ネジ(図示せず)などにより取り付けられる。このよう
に、フラットキーボードでは、操作時において、キース
イッチ111を押す力によって、プリント基板11がた
わまぬ様に鋼板12等の剛性の高い部材を用いてネジに
より固定されることが多い。しかし、鋼板12を用いて
いるので、キーボードの重量が重くなり、プリント基板
11を所望の間隔でネジ131によりスタッド13を介
して鋼板12に取り付けなければならないので、組立工
数が多くなるという問題点があった。
2. Description of the Related Art Many keyboards used in industrial computers and control devices are of a flat keyboard type using a key sheet from the viewpoint of dustproofness. The configuration of such a conventional keyboard is shown in FIG. In the figure, 11
A printed circuit board is provided with a key switch 111.
12 is a steel plate, and the hole 1 into which the key switch 111 is inserted
21. 13 is a stud, which is connected to the steel plate 12,
The printed circuit board 11 is fixed with screws 131. A key sheet 14 covers the hole 121 of the steel plate 12 and is attached to the steel plate 12. Reference numeral 15 is a case, to which the steel plate 12 is attached by screws (not shown) or the like. As described above, in the case of the flat keyboard, the printed circuit board 11 is often fixed by screws using a highly rigid member such as the steel plate 12 so that the printed circuit board 11 is not bent by the force of pressing the key switch 111 during operation. However, since the steel plate 12 is used, the weight of the keyboard becomes heavy, and the printed circuit board 11 must be attached to the steel plate 12 via the studs 13 with the screws 131 at desired intervals, which increases the number of assembly steps. was there.

【0003】[0003]

【発明が解決しようとする課題】本発明の目的は、重量
が軽く、組立が容易なキーボードを実現することにあ
る。
SUMMARY OF THE INVENTION An object of the present invention is to realize a keyboard which is light in weight and easy to assemble.

【0004】[0004]

【課題を解決するための手段】本発明は、キースイッチ
が設けられるプリント基板と、剛性の低い材料で構成さ
れ、前記キースイッチが挿入される穴部とボスとを設け
る上部ケースと、剛性の低い材料で構成され、前記プリ
ント基板を前記上部ケースのボスに押さえるボスを設け
る下部ケースと、前記上部ケースの穴部を覆うと共に上
部ケースに取り付けるキーシートと、を有することを特
徴とするものである。
According to the present invention, there is provided a printed circuit board on which a key switch is provided, an upper case which is made of a material having low rigidity and which has a hole and a boss into which the key switch is inserted, and a rigid case. A lower case that is made of a low material and that has a boss that presses the printed circuit board against the boss of the upper case; and a key sheet that covers the hole of the upper case and is attached to the upper case. is there.

【0005】[0005]

【作用】このような本発明では、上部ケースのボスと下
部ケースのボスとにより、プリント基板を挟み込んで、
プリント基板の固定を行う。
According to the present invention as described above, the printed circuit board is sandwiched by the boss of the upper case and the boss of the lower case,
Fix the printed circuit board.

【0006】[0006]

【実施例】以下図面を用いて本発明を説明する。図1は
本発明の一実施例を示した組立分解図である。図におい
て、1はプリント基板で、キースイッチ1aが設けられ
る。2は剛性の低い材料であるプラスチックで構成され
る上部ケースで、キースイッチ1aが挿入される穴部2
aとボス2bとネジ穴2c1を有するボス2cとを設け
る。3は剛性の低い材料であるプラスチックで構成され
る下部ケースで、プリント基板1を上部ケース2のボス
2bに押さえるボス3aと、プリント基板1を上部ケー
ス2のボス2bに押さえると共に穴部3b1を有するボ
ス3bとを設ける。4はキーシートで、上部ケース2の
穴部2aを覆うと共に上部ケース2に取り付ける。5は
ネジで、下部ケース3のボス3bの穴部3b1に挿入
し、上部ケース2のボス2cのネジ穴2c1と係合し、
プリント基板1の固定を行うと共に上部ケース2と下部
ケース3との固定を行う。
The present invention will be described below with reference to the drawings. FIG. 1 is an exploded view showing an embodiment of the present invention. In the figure, 1 is a printed circuit board, on which a key switch 1a is provided. 2 is an upper case made of plastic, which is a material with low rigidity, and has a hole 2 into which the key switch 1a is inserted.
providing a boss 2c having a boss 2b and the screw hole 2c 1. A lower case 3 is made of plastic, which is a low-rigidity material, and includes a boss 3a for pressing the printed board 1 against the boss 2b of the upper case 2 and a hole 3b 1 for pressing the printed board 1 against the boss 2b of the upper case 2. And a boss 3b having. Reference numeral 4 denotes a key sheet, which covers the hole 2a of the upper case 2 and is attached to the upper case 2. 5 is a screw, which is inserted into the hole 3b 1 of the boss 3b of the lower case 3 and engages with the screw hole 2c 1 of the boss 2c of the upper case 2,
The printed board 1 is fixed, and the upper case 2 and the lower case 3 are fixed.

【0007】このような装置の動作を以下で説明する。
上部ケース2の穴部2aにプリント基板1のキースイッ
チ1aを挿入する。そして、下部ケース3を上部ケース
2に取り付けて、ネジ5により、上部ケース2と下部ケ
ース3とを固定する。キーシート4を上部ケース2に取
り付ける。組立が終了した状態が図2である。
The operation of such a device will be described below.
The key switch 1a of the printed board 1 is inserted into the hole 2a of the upper case 2. Then, the lower case 3 is attached to the upper case 2, and the upper case 2 and the lower case 3 are fixed with screws 5. Attach the key sheet 4 to the upper case 2. FIG. 2 shows a state in which the assembly is completed.

【0008】このように、上部ケース2のボス2b,2
cと下部ケース3のボス3a,3bとによりプリント基
板1を固定し、ネジを用いてプリント基板1を固定する
数を減らすことができる。従って、組立が容易になる。
また、下部ケース3のボス3a,3bによりプリント基
板1を支えるので、操作時の押す力によるたわみを防ぐ
ために、プリント基板1を固定する部材に剛性の高い材
料を用いる必要がなく、軽量に構成することができる。
Thus, the bosses 2b, 2 of the upper case 2 are
The printed circuit board 1 is fixed by c and the bosses 3a and 3b of the lower case 3, and the number of fixing the printed circuit board 1 by using screws can be reduced. Therefore, the assembly becomes easy.
Further, since the printed circuit board 1 is supported by the bosses 3a and 3b of the lower case 3, it is not necessary to use a material having high rigidity for a member for fixing the printed circuit board 1 in order to prevent bending due to a pushing force at the time of operation. can do.

【0009】次に本発明の具体的構成を以下に示す。図
3は図1の装置の具体的構成を示した図である。以下、
図1と同一のものは同一符号を付す。図において、5は
プリント基板で、プリント基板1のキースイッチが押さ
れたことを検知し、コンピュータ(図示せず)などに信
号を送出するコントローラ回路を有している。6はスイ
ッチで、コンピュータの操作モードを切り換える。7は
スピーカ、8はメッシュで、スピーカ7を覆うことによ
り防水,防塵を図っている。これら、プリント基板5,
スイッチ6,スピーカ7,メッシュ8は、上部ケース2
と下部ケース3とにより構成されるケース内部に固定さ
れる。
Next, the specific constitution of the present invention is shown below. FIG. 3 is a diagram showing a specific configuration of the apparatus shown in FIG. Less than,
The same parts as those in FIG. 1 are designated by the same reference numerals. In the figure, reference numeral 5 denotes a printed circuit board, which has a controller circuit which detects that a key switch of the printed circuit board 1 is pressed and sends a signal to a computer (not shown) or the like. A switch 6 switches the operation mode of the computer. Reference numeral 7 is a speaker, and 8 is a mesh. By covering the speaker 7, waterproof and dustproof are achieved. These printed circuit boards 5,
The switch 6, speaker 7, and mesh 8 are the upper case 2
It is fixed inside the case constituted by the lower case 3.

【0010】本発明のその他の実施例を以下に示す。図
4は本発明のその他の実施例を示した図である。図にお
いて、9は上部ケース、91はアルミ板で、上部ケース
9にネジにより取り付けられ、キースイッチが挿入され
る穴部91aとキースイッチを有するプリント基板を固
定するボス(図示せず)とを設ける。このようにする
と、アルミ板を取り替えることにより、キー配列の変更
に対応できる。また、アルミ板は例えば2mmで構成す
ることができ、剛性の低く、軽量の材料で構成すること
ができる。
Another embodiment of the present invention will be described below. FIG. 4 is a diagram showing another embodiment of the present invention. In the figure, 9 is an upper case, 91 is an aluminum plate, which is attached to the upper case 9 with a screw and has a hole 91a into which a key switch is inserted and a boss (not shown) for fixing a printed circuit board having the key switch. Set up. By doing so, the key arrangement can be changed by replacing the aluminum plate. The aluminum plate can be made of, for example, 2 mm, and can be made of a material having low rigidity and light weight.

【0011】なお、本発明は、これに限定するものでは
なく、上部ケース2のボス2cと下部ケース3のボス3
bとをネジ5により固定したが、他の部分で上部ケース
2と下部ケース3とを固定する構成にする。そして、実
施例のようにボスを用いてネジによりプリント基板を固
定しない構成でもよい。しかし、本発明者が実験したと
ころによると、ある程度、プリント基板1の固定をネジ
を用いてした方が、キーを押したときの感触がよいとい
う結果が得られている。
The present invention is not limited to this, and the boss 2c of the upper case 2 and the boss 3 of the lower case 3 are not limited to this.
Although b is fixed by the screw 5, the upper case 2 and the lower case 3 are fixed at other portions. Then, as in the embodiment, the printed board may not be fixed by screws using bosses. However, according to experiments conducted by the present inventor, it has been obtained that the feel of the key when pressed is better when the printed circuit board 1 is fixed with screws to some extent.

【0012】[0012]

【発明の効果】本発明によれば、以下のような効果があ
る。上部ケースのボスと下部ケースのボスとによりプリ
ント基板を固定するので、ネジを用いてプリント基板を
固定しなくてよく、組立が容易になる。また、下部ケー
スのボスによりプリント基板を支えるので、プリント基
板を固定する部材に剛性の高い材料を用いる必要がな
く、装置を軽量に構成することができる。
The present invention has the following effects. Since the printed circuit board is fixed by the boss of the upper case and the boss of the lower case, it is not necessary to fix the printed circuit board with screws, and the assembly is facilitated. Further, since the printed board is supported by the boss of the lower case, it is not necessary to use a material having high rigidity for a member that fixes the printed board, and the device can be configured to be lightweight.

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

【図1】本発明の一実施例を示した組立分解図である。FIG. 1 is an exploded view showing an embodiment of the present invention.

【図2】図1の装置の組み立て完成図である。FIG. 2 is a completed assembly diagram of the apparatus of FIG.

【図3】図1の装置の具体的構成を示した図である。FIG. 3 is a diagram showing a specific configuration of the apparatus of FIG.

【図4】本発明のその他の実施例を示した図である。FIG. 4 is a diagram showing another embodiment of the present invention.

【図5】従来のキーボードの構成を示す図である。FIG. 5 is a diagram showing a configuration of a conventional keyboard.

【符号の説明】[Explanation of symbols]

1 プリント基板 2 上部ケース 3 下部ケース 4 キーシート 2a 穴部 2b,2c,3a,3b ボス 1 Printed Circuit Board 2 Upper Case 3 Lower Case 4 Key Sheet 2a Holes 2b, 2c, 3a, 3b Boss

Claims (1)

【特許請求の範囲】[Claims] 【請求項1】 キースイッチが設けられるプリント基板
と、 剛性の低い材料で構成され、前記キースイッチが挿入さ
れる穴部とボスとを設ける上部ケースと、 剛性の低い材料で構成され、前記プリント基板を前記上
部ケースのボスに押さえるボスを設ける下部ケースと、 前記上部ケースの穴部を覆うと共に上部ケースに取り付
けるキーシートと、を有することを特徴とするキーボー
ド。
1. A printed circuit board on which a key switch is provided, an upper case made of a material having low rigidity and provided with a hole and a boss into which the key switch is inserted, and a printed board made of a material having low rigidity. A keyboard comprising: a lower case that is provided with a boss that presses a substrate against the boss of the upper case; and a key sheet that covers the hole of the upper case and is attached to the upper case.
JP6091127A 1994-04-28 1994-04-28 Keyboard Pending JPH07295705A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6091127A JPH07295705A (en) 1994-04-28 1994-04-28 Keyboard

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6091127A JPH07295705A (en) 1994-04-28 1994-04-28 Keyboard

Publications (1)

Publication Number Publication Date
JPH07295705A true JPH07295705A (en) 1995-11-10

Family

ID=14017873

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6091127A Pending JPH07295705A (en) 1994-04-28 1994-04-28 Keyboard

Country Status (1)

Country Link
JP (1) JPH07295705A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7265969B2 (en) 2003-07-25 2007-09-04 Samsung Electronics Co., Ltd. Portable computer
US7869890B2 (en) 2006-09-06 2011-01-11 Honeywell International Inc. Keyboards having multiple groups of keys in the management of a process control plant
US9972463B2 (en) 2015-04-06 2018-05-15 Casio Computer Co., Ltd. Electronic device, printing device and electronic device production method

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7265969B2 (en) 2003-07-25 2007-09-04 Samsung Electronics Co., Ltd. Portable computer
US7869890B2 (en) 2006-09-06 2011-01-11 Honeywell International Inc. Keyboards having multiple groups of keys in the management of a process control plant
US9972463B2 (en) 2015-04-06 2018-05-15 Casio Computer Co., Ltd. Electronic device, printing device and electronic device production method

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