JPH03155013A - Keyboard switch - Google Patents

Keyboard switch

Info

Publication number
JPH03155013A
JPH03155013A JP1293890A JP29389089A JPH03155013A JP H03155013 A JPH03155013 A JP H03155013A JP 1293890 A JP1293890 A JP 1293890A JP 29389089 A JP29389089 A JP 29389089A JP H03155013 A JPH03155013 A JP H03155013A
Authority
JP
Japan
Prior art keywords
rubber spring
top surface
spring
load
rubber
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
JP1293890A
Other languages
Japanese (ja)
Other versions
JP2876227B2 (en
Inventor
Takayuki Akiyama
秋山 孝行
Tei Hirashima
禎 平島
Shigetaka Dosono
堂園 重隆
Kazuyoshi Ishitani
石谷 一儀
Hiroaki Nishiono
博昭 西小野
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 JP1293890A priority Critical patent/JP2876227B2/en
Publication of JPH03155013A publication Critical patent/JPH03155013A/en
Application granted granted Critical
Publication of JP2876227B2 publication Critical patent/JP2876227B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Abstract

PURPOSE:To strengthen constraint in the horizontal direction of the top of a rubber spring to obtain a desired load and stroke by providing a projection on the top panel of the rubber spring. CONSTITUTION:Constraint in the horizontal direction of the top 15 of a rubber spring 8 and the spring stiffness of the dome part 16 of the rubber spring 8 can be strengthened by providing a projection 7 on the top panel 15 of the rubber spring 8. This causes a peak load to be increased, the action of the rotation of the rubber spring top 15 to be stopped, the movement of a loading point and friction between the depressing part 12 of a push button 13 and the top 15 of the rubber spring 8 also to be eliminated, and the hysteresis of the load of the depression and return of the rubber spring to be reduced. Moreover a desired load and stroke can be obtained.

Description

【発明の詳細な説明】 (産業上の利用分野) 本発明は、電子機器の入力装置として用いるキーボード
スイッチに関する。
DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a keyboard switch used as an input device for electronic equipment.

(従来の技術) 第4図は従来のキーボードスイッチの構成を示している
。第4図において、41は下部接点、42は下部フレキ
シブルパターン、43は開孔、44は合成樹脂スペーサ
、45は上部接点、46は上部フレキシブルパターン、
47はラバースプリング、48は穴部、49はケース、
50は摺動部、 51は圧子部、52は押ボタン、53
は基板、54は天面、55はドーム部であり、下部接点
41を有する下部フレキシブルパターン42上に開孔4
3を有する合成樹脂スペーサ44を配置し、前記下部接
点41に対向する上部接点45を設けた上部フレキシブ
ルパターン46を被せ、前記上部接点45を押すラバー
スプリング47を置き、内部に貫通する穴部48を設け
た合成樹脂からなるケース49を結合し、前記穴部48
に上下動可能な摺動部50と前記ラバースプリング47
を押す圧子部51を有する押ボタン52を挿入し、以上
の部品を保持する基板53からなるキーボードスイッチ
である。
(Prior Art) FIG. 4 shows the configuration of a conventional keyboard switch. In FIG. 4, 41 is a lower contact, 42 is a lower flexible pattern, 43 is an opening, 44 is a synthetic resin spacer, 45 is an upper contact, 46 is an upper flexible pattern,
47 is a rubber spring, 48 is a hole, 49 is a case,
50 is a sliding part, 51 is an indenter part, 52 is a push button, 53
is a substrate, 54 is a top surface, 55 is a dome portion, and an opening 4 is formed on a lower flexible pattern 42 having a lower contact point 41.
A synthetic resin spacer 44 having a diameter of 3 is placed, an upper flexible pattern 46 having an upper contact 45 facing the lower contact 41 is placed thereon, a rubber spring 47 is placed to press the upper contact 45, and a hole 48 penetrating the inside is placed. A case 49 made of synthetic resin with a
The sliding part 50 that can move up and down and the rubber spring 47
This is a keyboard switch consisting of a board 53 into which a push button 52 having an indenter part 51 for pushing is inserted and a board 53 holding the above components.

(発明が解決しようとする課題) しかしながら、上記従来のキーボードスイッチでは、ラ
バースプリング47の天面54の肉厚が薄い場合、押ボ
タン52を押下するとラバースプリング47の天面54
の水平方向の拘束が弱いため、ラバースプリング47の
ドーム部55のバネ剛性が弱くなり、第2図に示すピー
ク荷重が下がる。また、第3図に示すようにラバースプ
リング47の天面54に回転の動きが加わり5ボトムス
トロークが浅くなりかつボトム荷重が上がる。さらに押
ボタン52の圧子部51とラバースプリング47の天面
54との間の荷重点の移動と摩擦により、ラバースプリ
ング47の押下と復帰の荷重のヒステリシスが増大する
という問題点があった。
(Problem to be Solved by the Invention) However, in the above conventional keyboard switch, when the top surface 54 of the rubber spring 47 is thin, when the push button 52 is pressed, the top surface 54 of the rubber spring 47
Since the restraint in the horizontal direction is weak, the spring rigidity of the dome portion 55 of the rubber spring 47 is weakened, and the peak load shown in FIG. 2 is reduced. Further, as shown in FIG. 3, rotational movement is applied to the top surface 54 of the rubber spring 47, resulting in a shallower bottom stroke and an increase in the bottom load. Furthermore, there is a problem in that the movement and friction of the load point between the indenter portion 51 of the push button 52 and the top surface 54 of the rubber spring 47 increases the hysteresis of the load when the rubber spring 47 is pressed and returned.

本発明は上記従来の問題点を解決するものであり、ラバ
ースプリング47の天面54の水平方向の拘束を強め、
所望の荷重とストロークを得られるキーボードスイッチ
を提供することを目的とするものである。
The present invention solves the above conventional problems, and strengthens the horizontal restraint of the top surface 54 of the rubber spring 47.
The object of the present invention is to provide a keyboard switch that can obtain a desired load and stroke.

(課題を解決するための手段) 本発明の上記目的を達成するために、ラバースプリング
の天面に突起を設けるようにしたものである。
(Means for Solving the Problems) In order to achieve the above object of the present invention, a projection is provided on the top surface of the rubber spring.

(作 用) したがって、本発明によれば、ラバースプリングの天面
に突起を設けることによって、ラバースプリングの天面
の水平方向の拘束を強め、ラバースプリングのドーム部
のバネ剛性を強めることができるため、ピーク荷重を上
げることができ、またラバースプリング天面の回転の動
きを止め、押ボタンの圧子部とラバースプリングの天面
との間の荷電点の移動と摩擦もなく、ラバースプリング
の押下と復帰の荷重のヒステリシスが低減できる。
(Function) Therefore, according to the present invention, by providing the protrusion on the top surface of the rubber spring, the horizontal restraint of the top surface of the rubber spring can be strengthened, and the spring rigidity of the dome portion of the rubber spring can be strengthened. Therefore, it is possible to increase the peak load, stop the rotation of the top surface of the rubber spring, and eliminate the movement and friction of the charged point between the indenter part of the push button and the top surface of the rubber spring, making it possible to press the rubber spring. and the hysteresis of the return load can be reduced.

(実施例) 第1図は本発明の一実施例におけるキーボードスイッチ
の構成を示すものであり、1は下部接点、2は下部フレ
キシブルパターン、3は開孔、4は合成樹脂スペーサ、
5は上部接点、6は上部フレキシブルパターン、7は突
起、8はラバースプリング、9は穴部、10はケース、
11は摺動部、12は圧子部、13は押ボタン、14は
基板、15は天面、16はドーム部であって、下部接点
1を有する下部フレキシブルパターン2上に開孔3を有
する合成樹脂スペーサ4を配置し、前記下部接点1に対
向する上部接点5を設けた上部フレキシブルパターン6
を被せ、前記上部接点5を押す突起7.ラバースプリン
グ8を置き、内部に貫通する穴部9を設けた合成樹脂か
らなるケース10と結合し、前記穴部9に上下動可能な
摺動部11を前記ラバースプリング8を押す圧子部12
を有する押ボタン13を挿入し、以上の部品を保持する
基板14からなる。
(Embodiment) FIG. 1 shows the configuration of a keyboard switch in an embodiment of the present invention, in which 1 is a lower contact, 2 is a lower flexible pattern, 3 is an opening, 4 is a synthetic resin spacer,
5 is an upper contact, 6 is an upper flexible pattern, 7 is a protrusion, 8 is a rubber spring, 9 is a hole, 10 is a case,
11 is a sliding part, 12 is an indenter part, 13 is a push button, 14 is a substrate, 15 is a top surface, and 16 is a dome part, which has an opening 3 on a lower flexible pattern 2 having a lower contact 1. an upper flexible pattern 6 in which a resin spacer 4 is arranged and an upper contact 5 facing the lower contact 1 is provided;
a protrusion 7 that presses the upper contact 5; A rubber spring 8 is placed therein, which is combined with a case 10 made of synthetic resin having a hole 9 penetrating therein, and a sliding part 11 that can move up and down in the hole 9 is inserted into the indenter part 12 that presses the rubber spring 8.
It consists of a board 14 into which a push button 13 having a shape is inserted and which holds the above-mentioned parts.

このように、上記実施例によれば、ラバースプリング8
の天面15の上部に突起7を設けているため、ラバース
プリング8のドーム部16のバネ剛性を高め、またラバ
ースプリング8の天面15の回転方向の動きを防止する
ことができるので、所望の荷重とストロークを得ること
ができる。
In this way, according to the above embodiment, the rubber spring 8
Since the protrusion 7 is provided on the upper part of the top surface 15 of the rubber spring 8, the spring rigidity of the dome portion 16 of the rubber spring 8 can be increased, and the movement of the top surface 15 of the rubber spring 8 in the rotational direction can be prevented. The load and stroke can be obtained.

(発明の効果) 本発明は上記実施例より明らかなように、ラバースプリ
ングの天面に突起を設けたものであり。
(Effects of the Invention) As is clear from the above embodiments, the present invention provides a projection on the top surface of the rubber spring.

ラバースプリング押下時の水平方向の動きを拘束させ、
ラバースプリングのドーム部のバネ剛性を高め、またラ
バースプリングの天面の回転方向の動きを防止できると
いう利点を有する。そして更に所望の荷重とストローク
を得ることができるという効果を有する。
Restricts horizontal movement when pressing the rubber spring,
This has the advantage of increasing the spring rigidity of the dome portion of the rubber spring and preventing movement of the top surface of the rubber spring in the rotational direction. Furthermore, there is an effect that a desired load and stroke can be obtained.

【図面の簡単な説明】[Brief explanation of the drawing]

第1図は本発明の一実施例におけるキーボードスイッチ
の断面図、第2図はカップラバーが有するストロークと
荷重との関係の特性図、第3図はカップラバーの天面が
回転方向の動きをしたときボトムストロークが浅くなる
ことを示す断面図。 第4図は従来例におけるキーボードスイッチの断面図で
ある。 1.41・・・下部接点、 2,42・・・下部フレキ
シブルパターン、 3.43・・・開孔、4.44・・
・合成樹脂スペーサ、 5,45・・・上部接点、6.
46・・・上部フレキシブルパターン、 7・・・突起
、8.47・・・ラバースプリング、 9.48・・・
穴部、10、49・・・ケース、11.50・・・摺動
部、12.51・・・圧子部、13.52・・・押ボタ
ン、14、53・・・基板、15.54・・・天面、1
6゜55・・・ ドーム部。
Fig. 1 is a sectional view of a keyboard switch according to an embodiment of the present invention, Fig. 2 is a characteristic diagram of the relationship between the stroke and load of the cup rubber, and Fig. 3 is a diagram showing the movement of the top surface of the cup rubber in the rotational direction. A cross-sectional view showing that the bottom stroke becomes shallow when this is done. FIG. 4 is a sectional view of a conventional keyboard switch. 1.41... Lower contact point, 2,42... Lower flexible pattern, 3.43... Opening hole, 4.44...
・Synthetic resin spacer, 5, 45... Upper contact, 6.
46... Upper flexible pattern, 7... Protrusion, 8.47... Rubber spring, 9.48...
Hole part, 10, 49... Case, 11.50... Sliding part, 12.51... Indenter part, 13.52... Push button, 14, 53... Board, 15.54 ...Top surface, 1
6゜55... Dome part.

Claims (1)

【特許請求の範囲】[Claims] 下部接点を有する下部フレキシブルパターン上に開孔を
有する合成樹脂スペーサを配置し、前記下部接点に対向
する上部接点を設けた上部フレキシブルパターンを被せ
てスイッチ部を設け、このスイッチ部を押すラバースプ
リングの天面に突起を設けることによりラバースプリン
グ押下時の水平方向の動きを拘束させ、ラバースプリン
グのドーム部のバネ剛性を高め、またラバースプリング
の天面の回転方向の動きを防止させたラバースプリング
を置き、内部に貫通する穴部を設けた合成樹脂からなる
ケースを結合し、前記穴部に上下動可能な摺動部とラバ
ースプリングを押す圧子部を有する押ボタンを挿入し、
以上の部品を保持する基板からなるキーボードスイッチ
A synthetic resin spacer having an opening is placed on a lower flexible pattern having a lower contact point, and a switch part is provided by covering the upper flexible pattern having an upper contact point facing the lower contact point, and a rubber spring that pushes the switch part is provided. By providing a protrusion on the top surface, the horizontal movement of the rubber spring when pressed is restricted, increasing the spring rigidity of the dome part of the rubber spring, and the rubber spring prevents the top surface of the rubber spring from moving in the rotational direction. A case made of synthetic resin with a hole penetrating the inside is connected, and a push button having a sliding part that can move up and down and an indenter part that presses a rubber spring is inserted into the hole,
A keyboard switch consists of a board that holds the above components.
JP1293890A 1989-11-14 1989-11-14 Keyboard switch Expired - Fee Related JP2876227B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1293890A JP2876227B2 (en) 1989-11-14 1989-11-14 Keyboard switch

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1293890A JP2876227B2 (en) 1989-11-14 1989-11-14 Keyboard switch

Publications (2)

Publication Number Publication Date
JPH03155013A true JPH03155013A (en) 1991-07-03
JP2876227B2 JP2876227B2 (en) 1999-03-31

Family

ID=17800478

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1293890A Expired - Fee Related JP2876227B2 (en) 1989-11-14 1989-11-14 Keyboard switch

Country Status (1)

Country Link
JP (1) JP2876227B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5389755A (en) * 1993-10-27 1995-02-14 Chen; Pao-Chin Computer key switch device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5389755A (en) * 1993-10-27 1995-02-14 Chen; Pao-Chin Computer key switch device

Also Published As

Publication number Publication date
JP2876227B2 (en) 1999-03-31

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