JPS6134666Y2 - - Google Patents
Info
- Publication number
- JPS6134666Y2 JPS6134666Y2 JP1980080311U JP8031180U JPS6134666Y2 JP S6134666 Y2 JPS6134666 Y2 JP S6134666Y2 JP 1980080311 U JP1980080311 U JP 1980080311U JP 8031180 U JP8031180 U JP 8031180U JP S6134666 Y2 JPS6134666 Y2 JP S6134666Y2
- Authority
- JP
- Japan
- Prior art keywords
- cover
- elastic sheet
- printed board
- guide pin
- bowl
- 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
Links
- 230000001771 impaired effect Effects 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
Landscapes
- Telephone Set Structure (AREA)
Description
【考案の詳細な説明】
本考案は押ボタン式電話機等に用いる押ボタン
スイツチ構造に関するものである。[Detailed Description of the Invention] The present invention relates to a push-button switch structure used in push-button telephones and the like.
通常、電話機等の押ボタン式ダイヤルスイツチ
はプリント板上に接点パターンを形成し、このプ
リント板上に4行3列の計12個の弾性変形可能な
碗状接点部を有する弾性シートを設け、各碗状接
点部に対応した位置に押ボタンを備えたカバーに
より上記弾性シートおよびプリント板を覆い、こ
のカバーは上記弾性シートおよびプリント板に設
けた位置決め用の孔に嵌入するガイドピンを有す
るものである。このような押ボタンスイツチを例
えば壁掛形電話機に用いた場合、電話機本体が過
つて壁掛状態から降下するとその衝撃によりガイ
ドピンが根本から折れ弾性シートがずれてその碗
状接点部とプリント板上の接点パターンとが正確
に対応せずスイツチ機能が損われるおそれがあつ
た。 Usually, a push-button dial switch such as a telephone has a contact pattern formed on a printed board, and an elastic sheet having a total of 12 elastically deformable bowl-shaped contacts arranged in 4 rows and 3 columns is provided on this printed board. The elastic sheet and printed board are covered by a cover equipped with a push button at a position corresponding to each bowl-shaped contact portion, and this cover has a guide pin that fits into a positioning hole provided in the elastic sheet and printed board. It is. When such a pushbutton switch is used in a wall-mounted telephone, for example, if the telephone accidentally falls from the wall-mounted state, the impact will cause the guide pin to break from its base, causing the elastic sheet to shift and cause the bowl-shaped contact portion and the printed board to fall. There was a risk that the switch function would be impaired because the contact pattern did not correspond accurately.
本考案は上記の点に鑑みなされたものであつ
て、落下等の衝撃によつても根本から容易に折れ
ないガイドピンを備えまた衝撃によつても容易に
位置ずれしない弾性シートを備えた押ボタンスイ
ツチ構造の提供を目的とする。このため本考案に
係る押ボタンスイツチ構造は弾性シートおよびプ
リント板の全外周端縁部がこれらを覆うカバー側
壁に係合してこのカバーに対して位置が固定さ
れ、このカバーのガイドピンは縮径先端部および
拡大根本部を有している。 The present invention was devised in view of the above points, and is equipped with a guide pin that does not easily break at its base even when subjected to impact such as a fall, and an elastic sheet that does not easily shift its position even when subjected to impact. The purpose is to provide a button switch structure. Therefore, in the push button switch structure according to the present invention, the entire outer peripheral edge of the elastic sheet and printed board engages with the side wall of the cover that covers them, and the position is fixed with respect to this cover, and the guide pin of this cover is compressed. It has a radial tip and an enlarged root.
第1図は本考案に係る押ボタンスイツチの一実
施例の断面図である。4行3列の計12個(3個の
み図示)の弾性変形可能な碗状接点部2aを有す
る絶縁ゴム等からなる弾性シート2がプリント板
1上に設けられる。各碗状接点部2aの内部には
導電ゴムからなる可動接点3が設けられる。各碗
状接点部2aの上部に配置した押ボタン4の押圧
操作により可動接点3がプリント板1に当接しそ
の接点パターン(図示しない)を導通させる。共
通作動軸6が例えば第1、第2の押ボタン行間お
よび第3、第4の押ボタン行間に設けられる。各
押ボタン4に係合してこの共通作動部6に作用す
る作動レバー5が設けられる。従つて、どの押ボ
タン4が押圧された場合でも共通作動軸6を介し
て共通接点7が作動する。弾性シート2およびプ
リント板1は合成樹脂等からなるカバー8により
覆われる。このカバー8は適当な位置に例えば4
ケ所に支注部8aを有しその先端にガイドピン9
が形成される。ガイドピン9はプリント板1およ
び弾性シート2に設けた各位置決め用の孔に嵌合
する。プリント板1の位置決め用の孔は弾性シー
ト2の位置決め用の孔より小さい。ガイドピン9
はプリント板1の位置決め用の孔に嵌合する縮径
先端部9aおよび弾性シート2の位置決め用の孔
に嵌合する拡大根本部9bにより構成される。弾
性シート2およびプリント板1の全外周端縁部は
カバー8の側壁8bの内面に係合し位置が固定さ
れる。 FIG. 1 is a sectional view of an embodiment of a push button switch according to the present invention. An elastic sheet 2 made of insulating rubber or the like is provided on a printed board 1 and has a total of 12 (only 3 shown) elastically deformable bowl-shaped contact portions 2a arranged in 4 rows and 3 columns. A movable contact 3 made of conductive rubber is provided inside each bowl-shaped contact portion 2a. The movable contact 3 comes into contact with the printed board 1 by pressing the push button 4 arranged on the upper part of each bowl-shaped contact part 2a, and the contact pattern (not shown) is made conductive. A common actuation shaft 6 is provided, for example, between the first and second pushbutton rows and between the third and fourth pushbutton rows. An actuation lever 5 is provided which engages each pushbutton 4 and acts on this common actuation part 6. Therefore, no matter which push button 4 is pressed, the common contact 7 is activated via the common actuation shaft 6. The elastic sheet 2 and printed board 1 are covered with a cover 8 made of synthetic resin or the like. This cover 8 is placed in a suitable position, for example 4
It has a support part 8a at two places and a guide pin 9 at its tip.
is formed. The guide pins 9 fit into positioning holes provided in the printed board 1 and the elastic sheet 2. The positioning holes in the printed board 1 are smaller than the positioning holes in the elastic sheet 2. Guide pin 9
is composed of a diameter-reduced tip portion 9a that fits into a positioning hole in the printed board 1 and an enlarged root portion 9b that fits into a positioning hole in the elastic sheet 2. The entire outer peripheral edges of the elastic sheet 2 and the printed board 1 are engaged with the inner surface of the side wall 8b of the cover 8, and their positions are fixed.
以上のような押ボタンスイツチ構造においては
カバー8のガイドピン9の根本部は径が大きいた
め衝撃等によつても容易に根本から折れることは
なく、また万一縮径先端部9aが折れた場合でも
プリント板1はカバー8の側壁8bにより固定保
持されるため位置ずれせず、弾性シート2もカバ
ー8の側壁8bおよびガイドピン9の拡大根本部
9bにより固定保持されるため位置ずれせず、従
つて可動接点3とプリント板1の接点パターン位
置がずれてスイツチ機能が損なわれることはな
い。また、弾性シート2上に設けた共通接点軸6
が位置ずれすることもなくなるため電話機の落下
等の後でも共通接点7は確実に作動する。また、
カバー8の4本の支注部8aのうち2本にガイド
ピン9を設け残り2本をネジ等により下側からプ
リント板1を固定するために用いた場合、ガイド
ピン9に段差が形成されているためネジの締過ぎ
により弾性シート2が過度に圧縮され弾性シート
の劣化を来すことはなくなる。なお、ガイドピン
9の形状は第2図に示すように円錐台形状であつ
てもよい。 In the push button switch structure as described above, the root part of the guide pin 9 of the cover 8 has a large diameter, so it will not easily break from the root part even if there is an impact, and in the unlikely event that the diameter-reduced tip part 9a breaks. Even if the printed circuit board 1 is fixedly held by the side wall 8b of the cover 8, it will not shift, and the elastic sheet 2 will not shift since it is also fixedly held by the side wall 8b of the cover 8 and the enlarged root portion 9b of the guide pin 9. Therefore, the switch function will not be impaired due to misalignment of the contact pattern positions of the movable contact 3 and the printed board 1. In addition, a common contact shaft 6 provided on the elastic sheet 2
Since the common contact 7 will not be displaced, the common contact 7 will operate reliably even after the telephone is dropped. Also,
When guide pins 9 are provided on two of the four support parts 8a of the cover 8 and the remaining two are used to fix the printed board 1 from below with screws, etc., a step is formed on the guide pins 9. Therefore, the elastic sheet 2 will not be excessively compressed and deteriorated due to over-tightening of the screws. Note that the shape of the guide pin 9 may be a truncated cone shape as shown in FIG.
第1図は本考案に係る押ボタンスイツチの断面
図、第2図は本考案に係る押ボタンスイツチの別
の実施例の部分断面図である。
1……プリント板、2……弾性シート、4……
押ボタン、8……カバー、9……ガイドピン、2
a……碗状接点部、8b……側壁。
FIG. 1 is a cross-sectional view of a push-button switch according to the present invention, and FIG. 2 is a partial cross-sectional view of another embodiment of the push-button switch according to the present invention. 1... Printed board, 2... Elastic sheet, 4...
Push button, 8... Cover, 9... Guide pin, 2
a... Bowl-shaped contact portion, 8b... Side wall.
Claims (1)
シートをプリント板上に設け、各碗状接点部に対
応した位置に押ボタンを備えたカバーにより上記
弾性シートおよびプリント板を覆い、該カバーは
上記弾性シートおよびプリント板に設けた位置決
め用の孔に嵌入するガイドピンを有する押ボタン
スイツチにおいて、上記弾性シートおよびプリン
ト板の端縁部が上記カバー側壁に係合して該カバ
ーに対して位置が固定され、上記カバーのガイド
ピンは縮径先端部および拡大根本部を有すること
を特徴とする押ボタンスイツチ構造。 An elastic sheet having a plurality of elastically deformable bowl-shaped contact portions is provided on a printed board, and the elastic sheet and the printed board are covered by a cover provided with a push button at a position corresponding to each bowl-shaped contact portion, and the cover is In the push button switch having a guide pin that fits into a positioning hole provided in the elastic sheet and the printed board, the end edges of the elastic sheet and the printed board engage with the side wall of the cover and are positioned relative to the cover. is fixed, and the guide pin of the cover has a reduced diameter tip and an enlarged root.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1980080311U JPS6134666Y2 (en) | 1980-06-11 | 1980-06-11 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1980080311U JPS6134666Y2 (en) | 1980-06-11 | 1980-06-11 |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS576121U JPS576121U (en) | 1982-01-13 |
JPS6134666Y2 true JPS6134666Y2 (en) | 1986-10-08 |
Family
ID=29442752
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1980080311U Expired JPS6134666Y2 (en) | 1980-06-11 | 1980-06-11 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6134666Y2 (en) |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS52145733U (en) * | 1976-04-27 | 1977-11-04 | ||
JPS5816019Y2 (en) * | 1977-09-02 | 1983-04-01 | 萬世工業株式会社 | Switch device for small computer |
-
1980
- 1980-06-11 JP JP1980080311U patent/JPS6134666Y2/ja not_active Expired
Also Published As
Publication number | Publication date |
---|---|
JPS576121U (en) | 1982-01-13 |
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