JPH0414713A - Keyboard - Google Patents

Keyboard

Info

Publication number
JPH0414713A
JPH0414713A JP2118003A JP11800390A JPH0414713A JP H0414713 A JPH0414713 A JP H0414713A JP 2118003 A JP2118003 A JP 2118003A JP 11800390 A JP11800390 A JP 11800390A JP H0414713 A JPH0414713 A JP H0414713A
Authority
JP
Japan
Prior art keywords
contact
key button
keyboard
key
plate spring
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
JP2118003A
Other languages
Japanese (ja)
Inventor
Seiichi Aizawa
成一 相沢
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.)
Nakajima All Precision Co Ltd
Original Assignee
Nakajima All Precision 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 Nakajima All Precision Co Ltd filed Critical Nakajima All Precision Co Ltd
Priority to JP2118003A priority Critical patent/JPH0414713A/en
Publication of JPH0414713A publication Critical patent/JPH0414713A/en
Pending legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H13/00Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch
    • H01H13/70Switches 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
    • H01H13/702Switches 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
    • H01H13/705Switches 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 characterised by construction, mounting or arrangement of operating parts, e.g. push-buttons or keys
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2235/00Springs
    • H01H2235/022Actuating striker
    • H01H2235/024Actuating striker formed by knee or dimple of leaf spring

Landscapes

  • Contacts (AREA)
  • Push-Button Switches (AREA)

Abstract

PURPOSE:To enhance assembling facility of a keyboard capable of energizing a plurality of key buttons by providing a plurality of plate spring portions, each one end of which is fixed to a base portion while each of the other end of which energizes a key button so as to open or close a contact. CONSTITUTION:An energizing means 28 comprises a base portion 30 consisted of one metal plate having resiliency, and plate spring portions 34 for punching plural rows and columns of the base portion 30 into a U-shape by pressing so as to erect at the base portion 30 in connection to the base portion 30 in portions 32. A plurality of plate spring portions 34 are brought into contact with a plurality of key buttons 12, respectively. With application of a force F to one of the key buttons 12, the key button 12 is depressed down against an energizing force of the plate spring portion 34. According to the downward movement of the key button 12, the plate spring portion 34 is turned clockwise on the portion 32. As a result, a pressing portion 36 presses an upper surface facing to a contact 44 of a contact sheet 40, thereby closing the contact 44.

Description

【発明の詳細な説明】 (産業上の利用分野) 本発明はキーボード関する。[Detailed description of the invention] (Industrial application field) The present invention relates to a keyboard.

(従来の技術) ワードプロセッサや電子タイプライタ等のキーボードに
は多数のキーボタンが設けられている。
(Prior Art) Keyboards for word processors, electronic typewriters, and the like are provided with a large number of key buttons.

キーボタンは押動された際に接点を閉鎖する構造になっ
ており、通常は接点を開放している。そのため、各キー
ボタンにはそれぞれ付勢手段であるコイルスプリングが
配され、キーボタンを接点から離反する方向へ常時付勢
しでいる。
The key button has a structure that closes the contact when it is pressed, and normally the contact is open. Therefore, each key button is provided with a coil spring serving as a biasing means, which constantly biases the key button in the direction away from the contact point.

従って、キーボタンへ指等でコイルスプリングの付勢力
に抗し得る力が作用された際にのみ接点が閉鎖される。
Therefore, the contact point is closed only when a force capable of resisting the biasing force of the coil spring is applied to the key button by a finger or the like.

(発明が解決しようとする課題) しかしながら、上記の従来のキーボードには次のような
課題が有る。
(Problems to be Solved by the Invention) However, the conventional keyboard described above has the following problems.

各キーボタンに1個ずつコイルスプリングを配設しなけ
ればならないため、特にワードプロセッサのようにキー
ボタンの数が多い場合、キーボードの組立作業における
作業効率が悪く、製造コストの上昇の原因となっている
という技術的及び経済的な課題が有る。
Because one coil spring must be placed on each key button, the work efficiency during keyboard assembly is poor, especially when the number of key buttons is large, such as in a word processor, which causes an increase in manufacturing costs. There are technical and economic challenges.

従って、本発明は簡易構造で安価なキーボードを提供す
ることを目的とする。
Therefore, an object of the present invention is to provide a keyboard with a simple structure and low cost.

(課題を解決するための手段) 上記課題を解決するため、本発明は次の構成を備える。(Means for solving problems) In order to solve the above problems, the present invention includes the following configuration.

すなわち、付勢手段により常時接点が開放又は閉鎖され
、該付勢手段の付勢力に抗して押動された際に前記接点
を閉鎖又は開放するキーボタンが複数設けられたキーボ
ードにおいて、前記付勢手段は、平板状をなす基部と、
前記キーボタンに対応して配され、一端が該基部に固定
され、他端が前記キーボタンを前記接点が開放又は閉鎖
する方向へ付勢する複数の板ハネ部とを具備することを
特徴とする。
That is, in a keyboard provided with a plurality of key buttons whose contacts are constantly opened or closed by a biasing means and which close or open the contacts when pressed against the biasing force of the biasing means, The force means includes a base having a flat plate shape;
It is characterized by comprising a plurality of plate spring parts arranged corresponding to the key button, one end of which is fixed to the base, and the other end of which biases the key button in a direction in which the contact point opens or closes. do.

(作用) 作用について説明する。(effect) The effect will be explained.

1枚の基部を組み込むことにより、複数のキーボタンを
付勢可能となるので、組立工数を減少可能となる。
By incorporating one base, it is possible to energize a plurality of key buttons, thereby reducing the number of assembly steps.

(実施例) 以下、本発明の好適な実施例について添付図面と共に詳
述する。なお本実施例においてはワードプロセッサのキ
ーボードを例に挙げる。
(Embodiments) Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. In this embodiment, a word processor keyboard is taken as an example.

第1図にはキーボード10の1行又は1列の部分断面図
を示す。
FIG. 1 shows a partial cross-sectional view of one row or one column of a keyboard 10. As shown in FIG.

第1図において、 12・・・はキーボタンであり、キートップ部14・・
・と、キートップ部14・・・の向上面から垂設された
ステム部16・・・及び掛止部18・・・を備えている
。なお、掛止部18・・・の下端は外側へ曲折されたフ
ック20・・・に形成されている。
In Fig. 1, 12... are key buttons, and key top portions 14...
. . and a stem portion 16 and a hook portion 18 . The lower ends of the hooks 18 are formed into hooks 20 bent outward.

22はフレームであり、上面にはスリーブ24・・・が
立設されている。スリーブ24・・・にはキーボタン1
2・・・のステム部16・・・が上下動自在に遊挿され
ている。また、スリーブ24・・・の両側には透孔26
・・・が穿設され、掛止部18・・・が上下動自在に遊
挿されている。
A frame 22 has sleeves 24 erected on its upper surface. Sleeve 24... has key button 1
The stem portions 16 of No. 2 are loosely inserted so as to be vertically movable. In addition, through holes 26 are provided on both sides of the sleeve 24...
. . . are bored, and the hook portions 18 . . . are loosely inserted so as to be vertically movable.

なお、掛止部18・・・のフック20・・・によりキー
ボタン12・・・のフレーム22・・・からの抜脱が阻
止されている。
Note that the key buttons 12 are prevented from being removed from the frame 22 by the hooks 20 of the hooks 18.

28は付勢手段であり、バネ性を有する1枚の金属板か
ら成る基部30と、その基部30を複数列かつ複数行、
コ字状にプレスで打ち抜き、部分32・・・で基部30
と連結したまま基部30から起立させて成る板バネ部3
4・・・を有している。板バネ部34・・・の先端はフ
リーになっており、キーボタン12・・・のステム部1
6・・・下端面に当接している。板ハネ部34・・・は
そのバネ性によってキーボタン12・・・を常時上方へ
付勢している。板ハネ部34・・・の中央は下方へ突出
した押圧部36・・・に形成されている。なお、板バネ
部34・・・下方の基部30には上記打抜加工により穴
38・・・が形成されている。
Reference numeral 28 denotes a biasing means, which includes a base 30 made of a single metal plate having spring properties, and a plurality of columns and rows of the base 30;
Punch out a U-shape with a press, and use the base 30 at the part 32...
The leaf spring part 3 is made to stand up from the base part 30 while being connected to the leaf spring part 3.
It has 4... The tip of the leaf spring part 34 is free, and the stem part 1 of the key button 12...
6...Abuts against the lower end surface. The plate spring portions 34 always urge the key buttons 12 upward due to their spring properties. The center of the plate spring portions 34 is formed into a pressing portion 36 that projects downward. Note that holes 38 are formed in the base 30 below the leaf spring portion 34 by the punching process described above.

40は接点シートであり、補強板42と付勢手段28の
基部30との間に挟着固定されている。
40 is a contact sheet, which is clamped and fixed between the reinforcing plate 42 and the base 30 of the biasing means 28.

接点シート40は内部に接点44・・・が設けられてお
り、接点44・・・は通常開放されており、接点シート
40の上面であって接点44・・・に相当する位置が下
方へ押圧されると接点44・・・が閉鎖する構造になっ
ている。付勢手段2日の板バネ部34・・・に設けられ
た押圧部36・・・はそれぞれ接点44・・・の上方に
対応して設けられており、押圧部36・・・が接点44
・・・に対応する接点シート40の上面を押圧可能にな
っている。なお、補強板42はフレーム22の脚部46
・・・によりフレーム22に対して所定の間隔を維持さ
れ、不図示の手段(例:ビス)によりフレーム22へ固
定されている。
The contact sheet 40 is provided with contacts 44 inside, and the contacts 44 are normally open, and the positions corresponding to the contacts 44 on the upper surface of the contact sheet 40 are pressed downward. When this happens, the contacts 44 are structured to close. The pressing portions 36 provided on the leaf spring portions 34 of the urging means 2 are respectively provided above the contacts 44, and the pressing portions 36 are provided above the contacts 44.
It is possible to press the upper surface of the contact sheet 40 corresponding to . Note that the reinforcing plate 42 is attached to the leg portion 46 of the frame 22.
... maintains a predetermined distance from the frame 22, and is fixed to the frame 22 by unillustrated means (eg, screws).

次に、上述のように構成されたキーボード10の動作に
ついて第2図をさらに参照して説明する。
Next, the operation of the keyboard 10 configured as described above will be explained with further reference to FIG. 2.

キーボタン12・・・に外力が加えられていない状態(
第1図の状態)において、キーボタン12・・・のステ
ム部16・・・下端面は板ハネ部34・・・自身のバネ
性により、上方へ押し上げられた状態にある。従って、
接点シート40の接点44・・・は開放された状態にあ
る。
A state in which no external force is applied to the key button 12 (
In the state shown in FIG. 1), the lower end surfaces of the stem portions 16 of the key buttons 12 are pushed upward by the spring properties of the leaf spring portions 34 themselves. Therefore,
The contacts 44 of the contact sheet 40 are in an open state.

そこで、第2図に示すように1個のキーボタン12に力
Fが加えられると、キーボタン12は板バネ部34の付
勢力に抗して下へ押し下げられる。
Therefore, when a force F is applied to one key button 12 as shown in FIG. 2, the key button 12 is pushed down against the biasing force of the leaf spring section 34.

すると、キーボタン12の下動に伴って仮バネ部34は
部分32を中心に時計方向へ回動する。その結果、押圧
部36が接点シート40の接点44に対応する上面を押
圧するので対応する接点44は閉鎖される。なお、キー
ボタン12は、接点シート40等の弾力性により接点4
4の閉鎖に必要な量よりさらに僅か下動可能になってお
り、接点44の閉鎖をより確実にすると共に、オペレー
タの指への衝撃を緩和可能になっている。
Then, as the key button 12 moves downward, the temporary spring portion 34 rotates clockwise around the portion 32. As a result, the pressing portion 36 presses the upper surface of the contact sheet 40 corresponding to the contacts 44, so that the corresponding contacts 44 are closed. Note that the key button 12 has contact points 4 due to the elasticity of the contact sheet 40, etc.
The contact point 44 can be moved slightly lower than the amount required to close the contact point 44, thereby making it possible to more securely close the contact point 44 and to reduce the impact on the operator's fingers.

キーボタン12を押下していた力Fが解放されるとキー
ボタン12は板バネ部34のバネ性により再び第1図図
示の状態に戻り、閉鎖していた接点44は開放される。
When the force F pressing down the key button 12 is released, the key button 12 returns to the state shown in FIG. 1 due to the spring properties of the leaf spring portion 34, and the closed contact 44 is opened.

上記実施例においては板バネ部34・・・に接点44・
・・閉鎖用の押圧部36・・・を設けたが、板バネ部3
4・・・のフリーな先端を例えばステム部16・・・の
中途へ固定し、ステム部16の下端面で接点シート40
の上面を押圧するようにしてもよい。その場合は仮バネ
部34・・・の押圧部36・・・は不要となる。
In the above embodiment, the contacts 44 and
Although the pressing part 36 for closing was provided, the leaf spring part 3
4... is fixed to the middle of the stem part 16..., for example, and the contact sheet 40 is fixed on the lower end surface of the stem part 16.
Alternatively, the upper surface of the holder may be pressed. In that case, the pressing portions 36 of the temporary spring portions 34 are not required.

また、接点44・・・についても接点シート40ではな
く、接点シート40に代えて接点が配された回路基板を
設け、キーボタン12・・・を押下した際に板ハネ部3
4・・・の押圧部36・・・又はキーボタン12・・・
のステム部16・・・の下端面で接点間を導通させるよ
うにしてもよい。その場合、少なくとも押圧部36・・
・又はステム部16・・・下端面は導電材料で形成され
るか導電処理が施される。
In addition, for the contacts 44..., instead of the contact sheet 40, a circuit board on which contacts are arranged is provided, and when the key button 12... is pressed, the plate spring portion 3
Pressing portion 36 of 4... or key button 12...
The contacts may be electrically connected at the lower end surfaces of the stem portions 16. In that case, at least the pressing part 36...
- Or the stem portion 16...The lower end surface is made of a conductive material or subjected to conductive treatment.

さらに、板バネ部34・・・が単にキーボタン12・・
・を付勢するだけの場合、付勢手段28はキーボタン1
2・・・の押下によって接点を解放する方式のキーボー
ドに用いることも可能である。
Furthermore, the leaf spring portion 34... is simply the key button 12...
・When only energizing, the energizing means 28 is the key button 1
It is also possible to use it in a keyboard in which the contacts are released by pressing 2....

以上、本発明の好適な実施例について種々述べて来たが
、本発明は上述の実施例に限定されるのではなく、例え
ば1個のキーボードに1個の付勢手段を設けるのではな
く、1個のキーボードに複数個の付勢手段を組み合わせ
て配設してもよい等、発明の精神を逸脱しない範囲でさ
らに多くの改変を施し得るのはもちろんである。
Various preferred embodiments of the present invention have been described above, but the present invention is not limited to the above embodiments. For example, instead of providing one biasing means for one keyboard, It goes without saying that many modifications can be made without departing from the spirit of the invention, such as a combination of a plurality of biasing means may be provided on one keyboard.

(発明の効果) 本発明に係るキーボードを用いると、1個の付勢手段で
複数のキーボタンを付勢可能となるため、部品点数をか
なり減少させることができる。従ってキーボードの組立
が楽になって組立工程における作業効率を向上させるこ
とができる。また、複数の細かなスプリングに代えて1
個の付勢手段で済むため部品の管理の手間が省け、運搬
も容易になり、ひいては製造コストをトータル的に引き
下げることが可能となる等の著効を奏する。
(Effects of the Invention) When the keyboard according to the present invention is used, a plurality of key buttons can be biased with one biasing means, so the number of parts can be considerably reduced. Therefore, the keyboard can be easily assembled, and work efficiency in the assembly process can be improved. Also, instead of multiple small springs, one
Since only one biasing means is required, the trouble of managing parts is saved, transportation becomes easy, and the manufacturing cost can be reduced in total.

【図面の簡単な説明】 第1図は本発明に係るキーボードの実施例を示した部分
断面図、第2図は第1図のキーボタンを押下した状態を
示した部分図。 lO・・・キーボード、  12・・・キーボタン、 
28・・・付勢手段、 30・・・基部、34・・・板
バネ部、 44・・・接点。
BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a partial cross-sectional view showing an embodiment of a keyboard according to the present invention, and FIG. 2 is a partial view showing a key button in FIG. 1 in a depressed state. lO...Keyboard, 12...Key button,
28... Biasing means, 30... Base, 34... Leaf spring portion, 44... Contact.

Claims (1)

【特許請求の範囲】 1、付勢手段により常時接点が開放又は閉鎖され、該付
勢手段の付勢力に抗して押動された際に前記接点を閉鎖
又は開放するキーボタンが複数設けられたキーボードに
おいて、 前記付勢手段は、平板状をなす基部と、前記キーボタン
に対応して配され、一端が該基部に固定され、他端が前
記キーボタンを前記接点が開放又は閉鎖する方向へ付勢
する複数の板バネ部とを具備することを特徴とするキー
ボード。
[Claims] 1. A plurality of key buttons are provided whose contacts are constantly opened or closed by a biasing means and which close or open the contacts when pressed against the biasing force of the biasing means. In the keyboard, the biasing means is disposed corresponding to a flat base and the key button, one end is fixed to the base, and the other end is in a direction in which the contact opens or closes the key button. A keyboard characterized by comprising a plurality of leaf spring parts biasing the keyboard.
JP2118003A 1990-05-08 1990-05-08 Keyboard Pending JPH0414713A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2118003A JPH0414713A (en) 1990-05-08 1990-05-08 Keyboard

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2118003A JPH0414713A (en) 1990-05-08 1990-05-08 Keyboard

Publications (1)

Publication Number Publication Date
JPH0414713A true JPH0414713A (en) 1992-01-20

Family

ID=14725650

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2118003A Pending JPH0414713A (en) 1990-05-08 1990-05-08 Keyboard

Country Status (1)

Country Link
JP (1) JPH0414713A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100537799B1 (en) * 2002-12-10 2005-12-20 덴소풍성(주) Oil filter
CN103258678A (en) * 2013-05-21 2013-08-21 上海格奇电子科技有限公司 Pressing structure for keyboard

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100537799B1 (en) * 2002-12-10 2005-12-20 덴소풍성(주) Oil filter
CN103258678A (en) * 2013-05-21 2013-08-21 上海格奇电子科技有限公司 Pressing structure for keyboard

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