JP3930936B2 - Push switch - Google Patents

Push switch Download PDF

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Publication number
JP3930936B2
JP3930936B2 JP05085697A JP5085697A JP3930936B2 JP 3930936 B2 JP3930936 B2 JP 3930936B2 JP 05085697 A JP05085697 A JP 05085697A JP 5085697 A JP5085697 A JP 5085697A JP 3930936 B2 JP3930936 B2 JP 3930936B2
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JP
Japan
Prior art keywords
case
cover
bent
push button
piece
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 - Lifetime
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JP05085697A
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Japanese (ja)
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JPH10233138A (en
Inventor
守男 多田
正祥 経明
哲司 横江
誠司 前田
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Hokuriku Electric Industry Co Ltd
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Hokuriku Electric Industry Co Ltd
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Priority to JP05085697A priority Critical patent/JP3930936B2/en
Publication of JPH10233138A publication Critical patent/JPH10233138A/en
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Publication of JP3930936B2 publication Critical patent/JP3930936B2/en
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  • Push-Button Switches (AREA)

Description

【0001】
【発明の属する技術分野】
この発明は、電子機器の押しボタン等の接点に用いられるプッシュスイッチに関する。
【0002】
【従来の技術】
一般に電子機器の各接点に用いられ、端子の突出方向に対して略直角に押しボタンが突出したいわゆる縦型のプッシュスイッチ1は、図5に示すようにプラスチック製のケース2内に固定接点と可動接点を有し、ケース2の一側面には可動接点に当接する押しボタン3が突出して設けられている。そして、ケース2の押しボタン3が突出した面及びその両側の2側面を取り囲むようにコ字型の金属板のカバー4が取り付けられ、カバー4の両端部には固定用端子5が下方に延出して形成されている。
【0003】
そして、押しボタン3を押圧する際に押し方向に対してケース2をカバー4に保持する手段の一つとして、実開平3−71520号公報に開示されているように、カバー4の互いに平行な2側面の中央に切起片6を形成し、ケース2の支持面2aに当接するように切起片6を折曲げているものがある。
【0004】
【発明が解決しようとする課題】
上記従来の技術の場合、切起片6を内側に折り曲げる際にケース2の支持面2aの角部にぶつからないように、切起片6の先端が支持面2aからわずかに離間されて形成されているため、切起片6を内側に折り曲げた後に支持面2aと切起片6との間に隙間が形成され、ケース2とカバー4との間にがたつきが生じるという問題があった。従って、ケース2を保持する機械的強度は低くなり、ケース2とカバー4を止めている溶着部が延び、押しボタン3を押圧する際にがたつきが生じることがあった。一方、支持面2aと切起片6の先端を隙間なく当接させようとすると、切起片6を折曲げた状態でその先端が支持面2aを支持するようにすると、切起片6を折り曲げる際に支持面2aの角部を切起片6により削ることとなり、製造の際に削られたプラスチックゴミが発生するという問題がある上、切起片6を折り曲げるために必要な力が大きく、製造コストが高くなるものであった。
【0005】
この発明は、上記従来の技術の問題点に鑑みてなされたもので、押しボタンの押し方向に対して機械的強度が高く、製造も容易なプッシュスイッチを提供することを目的とする。
【0006】
【課題を解決するための手段】
この発明は、押しボタンが突出した絶縁性樹脂のケースと、このケースの上記押しボタンが突出した面及びその両側の側面をコ字型に取り囲み両端部が上記ケースより長く形成されている一枚の金属製のカバーと、上記ケースの上記押しボタンが突出した面とは反対側の一側面に上記カバーの一端を折返して折曲片を当接させ、この折曲片の折返し線は上記押しボタンの押圧方向とほぼ平行であって上記ケースの上記一側面に立てた垂線に対して一定角度斜めに形成され、上記折曲片の上記ケースに当接する側の側縁部は、上記折返し線で折り曲げられる前は上記ケースの上記一側面に対して斜めにまたは切欠き等により離間した位置に形成されているプッシュスイッチである。
【0007】
また、上記折曲片は、上記カバーの両側に形成され、上記カバーの両側部に対しての折り曲げ角度が所定角度以下のときは上記ケースと離間し、折り曲げ角度が所定角度に達したときに、上記ケースの上記押しボタンが突出した面とは反対側の一側面に上記折曲片の側縁部が当接するものである。
【0008】
この発明のプッシュスイッチは、折曲片のケース側の側縁部や折返し線が所定角度を有する斜めに形成されているため、折曲片をカバーから折り曲げる際、折り曲げ角度が所定角度以下の時は上記ケースと離間しており容易に折り曲げられる。そして、折り曲げ角度が所定角度に達したときに、上記ケースの上記押しボタンが突出した面とは反対側の一側面に折曲片の側縁部が当接する。
【0009】
【発明の実施の形態】
以下、この発明の実施の形態について、図面に基づいて説明する。図1〜図4は、この実施の形態のプッシュスイッチ10を示すもので、絶縁性の樹脂でできた中空のケース12を有し、内部に固定接点14や可動接点16等のスイッチ機構を内蔵している。ケース12の一側面には、押しボタン18が突出方向に可動接点16により付勢されて設けられ、押しボタン18は可動接点16と接している。
【0010】
また、ケース12の押しボタン18が設けられた面の四隅には、ケース12と一体に形成された溶着突起20が設けられている。そして、ケース12の押しボタン18が設けられた面と、この面に隣接する2側面には、一枚の金属板のカバー22がコ字型に折り曲げられて取り付けられている。カバー22は、鉄板にハンダメッキしたもので、カバー22の中央部には押しボタン18よりわずかに大きい直径の挿通孔24が形成され、挿通孔24の四隅には溶着突起20が挿通する透孔26が形成されている。そしてカバー22は、挿通孔24に押しボタン18が嵌合され、透孔26に溶着突起20が嵌合されて押しつぶされてケース12に固定されている。
【0011】
カバー22の両端部は、図4に示すようにケース12の厚さよりも長く形成されている。そしてケース12より突出した部分では、ケース12の図1の上端面より低い位置に折返し線28が設けられ、折返し線28には折曲片30が隣接して設けられている。折返し線28は、ケース12の押しボタン18が突出した面とは反対側の一側面12aに立てた垂線に対して所定角度α、折曲げ前の折曲片30と反対側に傾斜した斜め線で形成されている。そして、折曲片30の一方の側面部30aはカバー22の側縁部22aと同一面上に形成され、他方の側縁部30bは、ケース12の押しボタン18とは反対側の側面12aに対して所定角度βを有した斜めに傾斜して形成され、そして側縁部30bの中央付近には段部32が形成されている。また、カバー22の側縁部22aには、回路基盤の透孔に挿入される固定用端子34が下方に延出して形成されている。
【0012】
そして折曲片30は図2に示すようにカバー22側面の延長線に対して所定角度γに折り曲げられ、折曲片30の側縁部30bは、ケース12の側面12a表面に当接する。この折曲片30は折返し線28と側縁部30bが、所定角度β斜めに形成されているため、折曲角度がγ以下では側縁部30bとケース12は離間しており容易に折り曲げることができ、所定角度γになると側縁部30bはケース12の側面12aに隙間なく当接する。
【0013】
ケース12の底面12bからは、固定接点14や可動接点16に接続されている一対のリード端子36が下方に延出している。リード端子36は、ケース12にインサート成型され、電気的性能を確保するために表面に銀メッキが施されたフレーム材が用いられている。
【0014】
このプッシュスイッチ10の回路基板への取付方法は、自動装着装置による自動化が可能で、自動装着の場合はまず押しボタン18を有する面が自動給送用テープと平行になるようにしかも一定のピッチで、粘着テープによりリード端子36の先端を自動給送用テープに取り付ける。そして、この状態で自動給送用テープを自動装着装置に装填し、そして所定位置に自動給送用テープが送られると、マシンハンドがプッシュスイッチ10を保持し、カッターがリード端子36を所定の長さで切断する。そして、マシンハンドにより、プッシュスイッチ10を回路基盤の所定に透孔に装着する。
【0015】
この実施形態のプッシュスイッチ10によれば、折曲片30の側縁部30bがケース12に対して長い距離当接するため取付強度が高く、しかも折曲げ線28は押しボタン18の押圧方向に対してほぼ等しいので、折曲げ片30の折曲げ方向に押圧力がかからず、折曲げ位置によるがたつきもほとんど生じない。そして隙間がないため、ケース12とカバー22との間に、押しボタン18の押し方向のがたつきがない。さらに、折曲片30は折り曲げ角度がγ以下の場合はケース12と離間しているため折り曲げに必要な力は小さく、ケース12の表面を傷つけたり削り屑が発生したりすることがない。そして、カバー22の形状は、折曲片30を有する形状に変更するだけなので部品点数が増えることがなく、また製造方法も折曲片30を上方から折り曲げるだけの簡単なもので、特別な器具は不要で、機械による自動化も可能である。
【0016】
なお、この発明のプッシュスイッチは、上記実施の形態に限定されるものではなく、折曲片は、押しボタンの押圧方向に対してわずかに斜めに形成され、折返し線により折返され、折曲片の折曲げ角度が一定角度とななったところで、ケース側面に当接し支持するようにしたものであれば良い。また、素材や各部材の形状等適宜変更可能である。また、この発明のカバーや折曲片等の形状はプッシュスイッチ以外のあらゆる電子部品に使用することができる。
【0017】
【発明の効果】
この発明のプッシュスイッチは、押しボタンの押し方向に対して機械的強度が高く、簡単な構造で製造も容易である。
【図面の簡単な説明】
【図1】この発明のプッシュスイッチの一実施形態の縦断面図である。
【図2】この実施形態のプッシュスイッチの背面図である。
【図3】この実施形態のプッシュスイッチの正面図である。
【図4】この実施形態のプッシュスイッチの右側面図である。
【図5】従来の技術のプッシュスイッチの右側面図である。
【符号の説明】
10 プッシュスイッチ
12 ケース
18 押しボタン
22 カバー
28 折返し線
30 折曲片
34 固定用端子
36 リード端子
[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a push switch used for a contact point such as a push button of an electronic device.
[0002]
[Prior art]
In general, a so-called vertical push switch 1 that is used for each contact of an electronic device and has a push button protruding substantially perpendicular to the protruding direction of the terminal is provided with a fixed contact in a plastic case 2 as shown in FIG. There is a movable contact, and a push button 3 that abuts the movable contact is provided on one side of the case 2 so as to protrude. Then, a U-shaped metal plate cover 4 is attached so as to surround the surface of the case 2 from which the push button 3 protrudes and the two side surfaces on both sides thereof, and the fixing terminals 5 extend downward at both ends of the cover 4. It is formed out.
[0003]
As one of means for holding the case 2 on the cover 4 with respect to the pressing direction when the push button 3 is pressed, the cover 4 is parallel to each other as disclosed in Japanese Utility Model Publication No. 3-71520. In some cases, a cut and raised piece 6 is formed at the center of the two side surfaces, and the cut and raised piece 6 is bent so as to contact the support surface 2 a of the case 2.
[0004]
[Problems to be solved by the invention]
In the case of the above-described conventional technique, the leading end of the cut and raised piece 6 is formed slightly spaced from the support surface 2a so as not to hit the corner of the support surface 2a of the case 2 when the cut and raised piece 6 is bent inward. Therefore, there is a problem that a gap is formed between the support surface 2a and the cut and raised piece 6 after the cut and raised piece 6 is bent inward, and there is a backlash between the case 2 and the cover 4. . Therefore, the mechanical strength for holding the case 2 is lowered, the welded portion that holds the case 2 and the cover 4 is extended, and rattling may occur when the push button 3 is pressed. On the other hand, if the support surface 2a and the tip of the cut and raised piece 6 are to be brought into contact with each other without a gap, the cut and raised piece 6 is moved when the tip and the support surface 2a are supported in a state where the cut and raised piece 6 is bent. When bending, the corners of the support surface 2a are shaved by the cut and raised pieces 6, and there is a problem that plastic scraped off during the production occurs, and the force required to fold the cut and raised pieces 6 is large. The manufacturing cost was high.
[0005]
The present invention has been made in view of the above-described problems of the prior art, and an object of the present invention is to provide a push switch that has high mechanical strength in the push direction of the push button and is easy to manufacture.
[0006]
[Means for Solving the Problems]
The present invention is a case of an insulating resin case in which a push button protrudes, a sheet in which the push button protrudes from the case and a side surface on both sides thereof in a U shape, and both ends are formed longer than the case. One end of the cover is folded back on one side of the case opposite to the surface from which the push button protrudes, and the folded line is brought into contact with the folded line. The side edge of the folded piece that is substantially parallel to the pressing direction of the button and is inclined at a certain angle with respect to the vertical line standing on the one side surface of the case, It is a push switch that is formed at a position that is inclined with respect to the one side surface of the case or separated by a notch or the like before being bent at a point.
[0007]
The bent pieces are formed on both sides of the cover. When the folding angle with respect to both sides of the cover is less than a predetermined angle, the bent pieces are separated from the case, and when the bending angle reaches a predetermined angle. The side edge portion of the bent piece abuts on one side surface of the case opposite to the surface on which the push button protrudes.
[0008]
In the push switch according to the present invention, the side edge of the folded piece and the folding line are formed obliquely with a predetermined angle. Therefore, when the folded piece is folded from the cover, the folding angle is less than the predetermined angle. Is separated from the case and can be easily bent. When the bending angle reaches a predetermined angle, the side edge portion of the bent piece comes into contact with one side surface of the case opposite to the surface from which the push button protrudes.
[0009]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings. 1 to 4 show a push switch 10 according to this embodiment, which has a hollow case 12 made of an insulating resin and incorporates a switch mechanism such as a fixed contact 14 and a movable contact 16 therein. is doing. On one side surface of the case 12, a push button 18 is urged by a movable contact 16 in a protruding direction, and the push button 18 is in contact with the movable contact 16.
[0010]
In addition, welding projections 20 formed integrally with the case 12 are provided at the four corners of the surface of the case 12 on which the push buttons 18 are provided. A cover 22 made of a single metal plate is attached to the surface of the case 12 on which the push button 18 is provided and two side surfaces adjacent to this surface by bending it into a U-shape. The cover 22 is obtained by soldering an iron plate, and through holes 24 having diameters slightly larger than the push buttons 18 are formed in the center of the cover 22, and through holes through which the welding protrusions 20 are inserted at the four corners of the insertion holes 24. 26 is formed. In the cover 22, the push button 18 is fitted in the insertion hole 24, and the welding projection 20 is fitted in the through hole 26 and is crushed and fixed to the case 12.
[0011]
Both ends of the cover 22 are formed longer than the thickness of the case 12 as shown in FIG. And in the part which protruded from the case 12, the folding line 28 is provided in the position lower than the upper end surface of FIG. 1 of the case 12, and the folding piece 30 is provided in the folding line 28 adjacently. The folding line 28 is a diagonal line that is inclined at a predetermined angle α with respect to the vertical line standing on the one side surface 12a opposite to the surface from which the push button 18 of the case 12 protrudes, opposite to the folded piece 30 before folding. It is formed with. Then, one side surface portion 30 a of the bent piece 30 is formed on the same surface as the side edge portion 22 a of the cover 22, and the other side edge portion 30 b is formed on the side surface 12 a opposite to the push button 18 of the case 12. On the other hand, it is formed obliquely with a predetermined angle β, and a step 32 is formed near the center of the side edge 30b. Further, a fixing terminal 34 to be inserted into a through hole of the circuit board is formed on the side edge portion 22a of the cover 22 so as to extend downward.
[0012]
As shown in FIG. 2, the bent piece 30 is bent at a predetermined angle γ with respect to the extension of the side surface of the cover 22, and the side edge portion 30 b of the bent piece 30 abuts on the surface of the side surface 12 a of the case 12. In this bent piece 30, the folding line 28 and the side edge portion 30 b are formed obliquely at a predetermined angle β. Therefore, when the bending angle is γ or less, the side edge portion 30 b and the case 12 are separated and easily bent. When the predetermined angle γ is reached, the side edge portion 30b contacts the side surface 12a of the case 12 without a gap.
[0013]
A pair of lead terminals 36 connected to the fixed contact 14 and the movable contact 16 extend downward from the bottom surface 12 b of the case 12. The lead terminal 36 is insert-molded into the case 12 and is made of a frame material whose surface is silver-plated to ensure electrical performance.
[0014]
The push switch 10 can be automatically mounted on the circuit board by an automatic mounting device. In the case of automatic mounting, the surface having the push button 18 is first parallel to the automatic feeding tape, and at a constant pitch. Then, the tip of the lead terminal 36 is attached to the automatic feeding tape with an adhesive tape. Then, in this state, the automatic feeding tape is loaded into the automatic mounting device, and when the automatic feeding tape is fed to a predetermined position, the machine hand holds the push switch 10 and the cutter holds the lead terminal 36 in a predetermined state. Cut by length. Then, the push switch 10 is attached to a predetermined through hole of the circuit board by a machine hand.
[0015]
According to the push switch 10 of this embodiment, the side edge 30b of the bent piece 30 is in contact with the case 12 for a long distance, so that the mounting strength is high, and the bending line 28 is in the pressing direction of the push button 18. Therefore, no pressing force is applied in the bending direction of the bent piece 30 and there is almost no rattling due to the bending position. Since there is no gap, there is no rattling in the pushing direction of the push button 18 between the case 12 and the cover 22. Further, when the bending angle is equal to or smaller than γ, the bent piece 30 is separated from the case 12 and therefore the force required for the bending is small, and the surface of the case 12 is not damaged and shavings are not generated. And since the shape of the cover 22 is changed only to the shape having the bent piece 30, the number of parts does not increase, and the manufacturing method is a simple one in which the bent piece 30 is simply bent from above. Can be automated by machine.
[0016]
The push switch of the present invention is not limited to the above-described embodiment, and the bent piece is formed slightly oblique to the pressing direction of the push button, and is folded by a folding line. As long as the bending angle becomes a constant angle, any material may be used as long as it abuts and supports the side surface of the case. Moreover, a raw material, the shape of each member, etc. can be changed suitably. Further, the shape of the cover, the bent piece, etc. of the present invention can be used for all electronic components other than the push switch.
[0017]
【The invention's effect】
The push switch of the present invention has high mechanical strength with respect to the pushing direction of the push button, and is easy to manufacture with a simple structure.
[Brief description of the drawings]
FIG. 1 is a longitudinal sectional view of an embodiment of a push switch of the present invention.
FIG. 2 is a rear view of the push switch of this embodiment.
FIG. 3 is a front view of the push switch of this embodiment.
FIG. 4 is a right side view of the push switch of this embodiment.
FIG. 5 is a right side view of a conventional push switch.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 10 Push switch 12 Case 18 Push button 22 Cover 28 Folding line 30 Bending piece 34 Fixing terminal 36 Lead terminal

Claims (2)

押しボタンが突出した絶縁性樹脂のケースと、このケースの上記押しボタンが突出した面及びその両側の側面をコ字型に取り囲み両端部が上記ケースより長く形成されている一枚の金属製のカバーと、上記ケースの上記押しボタンが突出した面とは反対側の一側面に上記カバーの一端を折返して折曲片を当接させ、上記折曲片の折返し線は上記押しボタンの押圧方向とほぼ平行であって上記ケースの上記一側面に立てた垂線に対して一定角度斜めに形成され、上記折曲片の上記ケースに当接する側の側縁部は、上記折返し線で折り曲げられる前は上記ケースの上記一側面に対して離間した位置に形成されていることを特徴とするプッシュスイッチ。A case of insulating resin with a push button protruding, and a piece of metal that surrounds the surface of the case where the push button protrudes and the sides on both sides thereof in a U shape and has both ends formed longer than the case. One end of the cover is folded back to the cover and one side of the case opposite to the surface from which the push button protrudes, and the folded piece comes into contact with the folded line. The side edge portion of the folded piece that is in contact with the case is bent before the folded line before being bent by the folded line. Is a push switch formed at a position separated from the one side surface of the case. 上記折曲片は、上記カバーの両側に形成され、上記カバーの両側部に対しての折り曲げ角度が所定角度以下のときは上記ケースと離間し、折り曲げ角度が所定角度に達したときに、上記ケースの上記一側面に、上記折曲片の側縁部が当接することを特徴とする請求項1記載のプッシュスイッチ。The bent pieces are formed on both sides of the cover, separated from the case when a bending angle with respect to both sides of the cover is a predetermined angle or less, and when the bending angle reaches a predetermined angle, The push switch according to claim 1, wherein a side edge portion of the bent piece abuts on the one side surface of the case.
JP05085697A 1997-02-18 1997-02-18 Push switch Expired - Lifetime JP3930936B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP05085697A JP3930936B2 (en) 1997-02-18 1997-02-18 Push switch

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP05085697A JP3930936B2 (en) 1997-02-18 1997-02-18 Push switch

Publications (2)

Publication Number Publication Date
JPH10233138A JPH10233138A (en) 1998-09-02
JP3930936B2 true JP3930936B2 (en) 2007-06-13

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
JP05085697A Expired - Lifetime JP3930936B2 (en) 1997-02-18 1997-02-18 Push switch

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Country Link
JP (1) JP3930936B2 (en)

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Publication number Publication date
JPH10233138A (en) 1998-09-02

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