JP4264684B2 - Push switch and manufacturing method thereof - Google Patents

Push switch and manufacturing method thereof Download PDF

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Publication number
JP4264684B2
JP4264684B2 JP21125099A JP21125099A JP4264684B2 JP 4264684 B2 JP4264684 B2 JP 4264684B2 JP 21125099 A JP21125099 A JP 21125099A JP 21125099 A JP21125099 A JP 21125099A JP 4264684 B2 JP4264684 B2 JP 4264684B2
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JP
Japan
Prior art keywords
shaft
contact
housing
contact piece
forming
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 - Fee Related
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JP21125099A
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Japanese (ja)
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JP2001035296A (en
JP2001035296A5 (en
Inventor
誠康 伊藤
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SMK Corp
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SMK Corp
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Priority to JP21125099A priority Critical patent/JP4264684B2/en
Publication of JP2001035296A publication Critical patent/JP2001035296A/en
Publication of JP2001035296A5 publication Critical patent/JP2001035296A5/ja
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  • Push-Button Switches (AREA)

Description

【0001】
【発明の属する技術分野】
本発明は、コンパクトディスクの蓋の開閉等を検出する検出スイッチとしてのプッシュスイッチとその製造方法に関するものである。
【0002】
【従来の技術】
一般にこの種のプッシュスイッチは、物体検出用のシャフトの先端からハウジングの他端までの長さが精々8mmと極めて小さい。従って、シャフトの進退によりハウジング内の端子に接離する接触片は、その長さが約3mm、厚さが0.1mm以下である。
【0003】
しかるに、従来の接触片は、予めプレスや加締めにより接触ばね部、接点部、固定部などを形成し、これをシャフトに組み込むようになっている。
【0004】
【発明が解決しようとする課題】
従来のこの種のプッシュスイッチでは、接触片は、予めプレスにより片持ちばねやU字ばねに形成し、成形後のシャフトに組み込むようになっているため、接触片における固定部部分のスペースが必要となり、その分接触ばね部のスパンが短くなり、従って、ばね性の優れたベリリウム銅等の高価な金属材料を使用しなければならないという問題があった。また、シャフトと接触片が別体であるため、1つに組み込むための加締めなどの別工程も必要であるという問題もあった。
【0005】
本発明は、接触ばね部16のスパンをできるだけ長くとることができ、しかも、安価な材料で特性の優れたものが得られ、加工費も低減できるプッシュスイッチとその製造方法を提供することを目的とするものである。
【0006】
【課題を解決するための手段】
本発明は、接触片13を設けたシャフト12と、このシャフト12を収納するハウジング10とを具備し、前記シャフト12の先端の進退軸部23の進退に応じてシャフト12に設けた接触片13とハウジング10内の端子15とを接離してなるプッシュスイッチにおいて、前記接触片13は、導電性金属板材からなり、基端部の埋込部17から一方端側に、中央突出端部21と左右の接触ばね部16とを、同一面を向いたフォーク状に伸びて形成し、前記左右の接触ばね部16は、埋込部17との連結部分から後方へ折曲した後、弧状部19を持って垂直に立ち上がらせ、この接触ばね部16の上端部に、半円状に屈曲した接点部20を形成したものからなり、前記シャフト12と一体の接触片埋込部25に、前記接触片13の埋込部17を、この埋込部17から外部へ突出する個所に予め前記弧状部19を形成して一体成形した後、この弧状部19をU字形に曲げ加工したものを、前記ハウジング10内の同一面内に設けた左右の前記端子に前記シャフト12の進退に伴い接離するように組み込んでなることを特徴とするプッシュスイッチである。
【0007】
以上のようなプッシュスイッチは、導電性金属板材を用い、基端部の埋込部17から一方端側に、中央突出端部21と左右の接触ばね部16とを、同一面を向いたフォーク状に伸びて形成し、前記左右の接触ばね部16は、埋込部17との連結部分から後方へ折曲した後、弧状部19を持って垂直に立ち上がらせ、この接触ばね部16の上端部に、半円状に屈曲した接点部20を設けて接触片13を形成する工程と、この接触片13の埋込部17部分を、シャフト12を成形するための金型に収納して接触片埋込部25にてモールドし、かつ、進退軸部23と摺動体部24を一体に成形してシャフト12を形成する工程と、前記接触片13における弧状部19部分を前記金型内でU字形に曲げ加工する工程と、前記接触片13をシャフト12に一体成形したものをハウジング10内の同一面内に設けた左右の前記端子15に前記シャフト12の進退に伴い接離するように組み込む工程とによって製造される。
【0008】
【発明の実施の形態】
以下、本発明の一実施例を図面に基づき説明する。
図5、図6及び図7において、10は、例えば、長さ、幅、高さがそれぞれ6mm、4mm、2mm程度の上面開口した箱型のハウジングである。このハウジング10における短手方向(図6中の左側)の側板32には、シャフト進退孔33が穿設され、右側の側板32の内面には、コイルばね14を係止するばね係合突起34が形成されている。また、このハウジング10の底板35の内面には、長手方向に伸びた第1端子15aと第2端子15bからなる端子15が設けられている。前記第1端子15aは、後述のシャフト12の進退に拘らず一方の接触ばね部16の接点部20に常時接触するように長く形成され、また、前記第2端子15bは、通常(図6の状態)では他方の接触ばね部16の接点部20に接触せず、シャフト12を押し込んだとき接触するようにやや短く形成されている。前記第1端子15aに連続する第1接続端子部28aと、前記第2端子15bに連続する第2接続端子部28bは、それぞれハウジング10の底板35内に埋め込まれた後、長手方向の両側板36から外部へ突出している。前記第1接続端子部28aと第2接続端子部28bとで接続端子部28を構成している。さらに、ハウジング10の長手方向の側板32の両外側面には、係止爪部30が形成され、前記底板35の下面には、2個の位置決め突部31が設けられている。
【0009】
前記ハウジング10には、図1に示すようなシャフト12が進退自在に設けられている。このシャフト12は、前記側板32のシャフト進退孔33を進退する進退軸部23と、前記ハウジング10の内部を摺動する摺動体部24からなり、この摺動体部24には、長手方向に2本の溝部27が形成され、これらの溝部27の間には、接触片埋込部25が設けられ、この接触片埋込部25には、コイルばね14を遊嵌するばね係合突部26が一体に突出している。また、この接触片埋込部25には、図4に示すような接触片13が成形時に一体にモールドして形成される。さらに、進退軸部23と摺動体部24との境界部分は、シャフト進退孔33からの抜け止めの段部36となっている。
【0010】
この接触片13は、比較的安価な燐青銅等の導電性金属板材を図4に示すように、打ち抜き後折曲加工したもので、基端部が角形フープ状をなした埋込部17をなし、この埋込部17から一方端側には、中央突出端部21と、左右の接触ばね部16とでフォーク状に伸び、中央突出端部21は、連結部18を経て次の埋込部17に連結している。前記両側の接触ばね部16は、埋込部17との連結部分から一旦後方へ直角に折曲した後弧状部19を持って垂直に立ち上がらせたもので、この接触ばね部16の上端部は、半円状に屈曲した接点部20となっている。
【0011】
前記ハウジング10に被せるカバー11は、図5、図6及び図7に示すように、金属板をコ字形に折曲してなり、両側部には、前記係止爪部30の係止する係止孔部29が形成され、また、この両係止爪部30の下端部からそれぞれカバーの固定端子37が水平方向に折曲されて形成されている。
【0012】
次に、本発明によるプッシュスイッチとその製造方法の組立て工程を図8に基づき説明する。
(a)接触片13:予め図4に示すようにプレス品連鎖の状態に形成されているものとする。
(1)第1工程:金型で複数個のシャフト12を同時成形するときに、プレス品連鎖の各接触片13の埋込部17の部分をシャフト12の接触片埋込部25部分でモールドするように配置して一体成形する。
(2)第2工程:第1工程と同一金型で接触片13の接触ばね部16部分を図1及び図4に鎖線で示すように弧状部19部分からU字曲げ加工を施す。
(3)第3工程:埋込部17を切断線22でフープカットし、短冊状する。
(4)第4工程:連結部18をカットし、突出端部21を図1及び図4のように曲げる。
【0013】
(b)コイルばね14
(1)第1工程:別に作られたコイルばね14をシャフト12のばね係合突部26に組み込む。
【0014】
(c)端子15:プレス品連鎖の状態に形成されているものとする。
(1)第1工程:金型で複数個のハウジング10を同時成形するときに、プレス品連鎖の第1端子15aと第2端子15bをハウジング10の底板35の上面に露出させ、これらの第1端子15aと第2端子15bに連続する第1接続端子部28aと2接続端子部28bの一部をモールドし、先端をハウジング10の側方から外部に突出するようにして一体成形する。
(2)第2工程:ハウジング10を単品にカットする。
(3)第3工程:単品の各ハウジング10に(a)(4)第4工程で形成された接触片13付きシャフト12にコイルばね14を組み込んだものを組み込む。このとき、コイルばね14の他端部は、ハウジング10のばね係合突起34に係止される。
【0015】
(d)カバー11:プレス品連鎖の状態に形成されているものとする。
(1)第1工程:カバー11を単品にカットする。
(2)第2工程:(c)(3)第3工程で組み込んだものにカバー11を組み込む。このとき、カバー11をハウジング10の上から圧入すると、カバー11の係止孔部29とハウジング10の係止爪部30が係合して組み込まれる。
(3)第3工程:端子15の接続端子部28をカットフォーミングして完成する。
【0016】
【発明の効果】
本発明は、シャフト12と一体の接触片埋込部25に、接触片13の埋込部17を、この埋込部17から外部へ突出する個所に予め弧状部19を形成して一体成形した後、この弧状部19をU字形に曲げ加工したものをハウジング10内に組み込むようにしたので、接触片における固定部部分のスペースが可及的に短くでき、その分接触ばね部のスパンを長くでき、安価な金属材料であっても特性の優れたプッシュスイッチとすることができる。また、シャフトと接触片を一体成形したので、組み込み工程が容易になり、加工費を低減することができる。
【0017】
安価な材料で済むので、材料費を低減することができる。
【図面の簡単な説明】
【図1】本発明によるプッシュスイッチとその製造方法の接触片13付きシャフト12の一実施例を示す斜視図である。
【図2】図1における進退軸部23部分で切断した断面図である。
【図3】図1における溝部27部分で切断した断面図である。
【図4】本発明のプッシュスイッチとその製造方法に用いられる連鎖した接触片13の一実施例を示す斜視図である。
【図5】本発明によるプッシュスイッチとその製造方法の一実施例を示すもので、図6及び図7のA−A線断面図である。
【図6】本発明によるプッシュスイッチとその製造方法の一実施例を示すもので、図5及び図7のB−B線断面図である。
【図7】本発明によるプッシュスイッチとその製造方法の一実施例を示すもので、図6のC−C線断面図である。
【図8】本発明によるプッシュスイッチとその製造方法の一実施例を示す工程図である。
【符号の説明】
10…ハウジング、11…カバー、12…シャフト、13…接触片、14…コイルばね、15…端子、15a…第1端子、15b…第2端子、16…接触ばね部、17…埋込部、18…連結部、19…弧状部、20…接点部、21…中央突出端部、22…切断線、23…進退軸部、24…摺動体部、25…接触片埋込部、26…ばね係合突部、27…溝部、28…接続端子部、28a…第1接続端子部、28b…第2接続端子部、29…係止孔部、30…係止爪部、31…位置決め突部、32…側板、33…シャフト進退孔、34…ばね係合突起、35…底板、36…段部、37…カバーの固定端子。
[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a push switch as a detection switch for detecting opening and closing of a lid of a compact disk and a method for manufacturing the same.
[0002]
[Prior art]
In general, this type of push switch has an extremely small length of 8 mm from the tip of the object detection shaft to the other end of the housing. Therefore, the contact piece that contacts and separates from the terminal in the housing as the shaft advances and retreats has a length of about 3 mm and a thickness of 0.1 mm or less.
[0003]
However, the conventional contact piece forms a contact spring part, a contact part, a fixed part, etc. by press or caulking in advance, and these are incorporated into the shaft.
[0004]
[Problems to be solved by the invention]
In this type of conventional push switch, the contact piece is previously formed into a cantilever spring or U-shaped spring by pressing and incorporated into the shaft after molding, so a space for the fixed portion of the contact piece is required. Accordingly, the span of the contact spring portion is shortened accordingly, and therefore there is a problem that an expensive metal material such as beryllium copper having excellent spring properties must be used. In addition, since the shaft and the contact piece are separate, another process such as caulking for incorporation into one is also required.
[0005]
An object of the present invention is to provide a push switch that can make the span of the contact spring portion 16 as long as possible, obtain an excellent material with an inexpensive material, and reduce the processing cost, and a manufacturing method thereof. It is what.
[0006]
[Means for Solving the Problems]
The present invention includes a shaft 12 provided with a contact piece 13 and a housing 10 for housing the shaft 12, and the contact piece 13 provided on the shaft 12 according to the advance / retreat of the advance / retreat shaft portion 23 at the tip of the shaft 12. In the push switch in which the terminal 15 in the housing 10 is contacted and separated, the contact piece 13 is made of a conductive metal plate material, and a central projecting end portion 21 is formed on one end side from the embedded portion 17 of the base end portion. The left and right contact spring portions 16 are formed to extend in a fork shape facing the same surface, and the left and right contact spring portions 16 are bent rearward from the connecting portion with the embedded portion 17 and then the arc-shaped portion 19. The contact spring portion 16 is formed in a semicircular contact portion 20 at the upper end portion of the contact spring portion 16, and the contact piece embedded portion 25 integral with the shaft 12 has the contact portion embedded therein. Embedded portion 17 of piece 13 After integrally molded to form the arcuate portion 19 in advance at a location that protrudes from the embedded portion 17 to the outside, the arcuate portion 19 a that is bent in a U-shape, in the same surface of the housing 10 The push switch is assembled so as to be brought into and out of contact with the provided left and right terminals as the shaft 12 advances and retreats .
[0007]
The push switch as described above uses a conductive metal plate material, and has a central projecting end portion 21 and left and right contact spring portions 16 facing the same surface from the embedded portion 17 of the base end portion to one end side. The left and right contact spring portions 16 are bent rearward from the connecting portion with the embedded portion 17 and then raised vertically with an arc-shaped portion 19, and the upper ends of the contact spring portions 16 are formed. A step of forming a contact piece 13 by providing a contact portion 20 bent in a semicircular shape, and an embedded portion 17 portion of the contact piece 13 accommodated in a mold for forming the shaft 12 Molding in the piece embedding portion 25 and forming the shaft 12 by integrally forming the advancing / retreating shaft portion 23 and the sliding body portion 24, and the arc-shaped portion 19 portion of the contact piece 13 in the mold a step of bending into a U-shape, a pre SL contact piece 13 shaft 12 It is produced by the step of incorporating together molded those to the terminal 15 of the right and left provided on the same surface of the housing 10 with the forward and backward of the shaft 12 toward and away from.
[0008]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, an embodiment of the present invention will be described with reference to the drawings.
5, 6, and 7, reference numeral 10 denotes a box-shaped housing having an open top surface with a length, width, and height of about 6 mm, 4 mm, and 2 mm, respectively. A shaft advancement / retraction hole 33 is formed in a side plate 32 in the short side direction (left side in FIG. 6) of the housing 10, and a spring engagement protrusion 34 that locks the coil spring 14 on the inner surface of the right side plate 32. Is formed. A terminal 15 comprising a first terminal 15a and a second terminal 15b extending in the longitudinal direction is provided on the inner surface of the bottom plate 35 of the housing 10. The first terminal 15a is formed long so as to be always in contact with the contact portion 20 of one contact spring portion 16 regardless of the advancement and retraction of the shaft 12 described later, and the second terminal 15b is usually (see FIG. 6). In the state), the contact spring portion 16 of the other contact spring portion 16 is not brought into contact with the contact spring portion 16, but is formed slightly shorter so as to come into contact when the shaft 12 is pushed in. The first connection terminal portion 28a continuous to the first terminal 15a and the second connection terminal portion 28b continuous to the second terminal 15b are respectively embedded in the bottom plate 35 of the housing 10, and then both side plates in the longitudinal direction. Projecting from 36 to the outside. The first connection terminal portion 28a and the second connection terminal portion 28b constitute a connection terminal portion 28. Further, locking claws 30 are formed on both outer side surfaces of the side plate 32 in the longitudinal direction of the housing 10, and two positioning projections 31 are provided on the lower surface of the bottom plate 35.
[0009]
The housing 10 is provided with a shaft 12 as shown in FIG. The shaft 12 includes an advancing / retreating shaft portion 23 that advances and retreats through the shaft advance / retreat hole 33 of the side plate 32 and a sliding body portion 24 that slides inside the housing 10. The sliding body portion 24 includes 2 in the longitudinal direction. The groove portions 27 are formed, and a contact piece embedding portion 25 is provided between the groove portions 27, and a spring engaging protrusion 26 that loosely fits the coil spring 14 is provided in the contact piece embedding portion 25. Projecting together. Further, the contact piece embedded portion 25 is formed by integrally molding the contact piece 13 as shown in FIG. Further, a boundary portion between the advancing / retreating shaft portion 23 and the sliding body portion 24 serves as a step portion 36 for preventing the shaft from advancing / retreating from the shaft 33.
[0010]
The contact piece 13 is formed by bending a relatively inexpensive conductive metal plate material such as phosphor bronze as shown in FIG. 4 after punching, and a base end portion of the embedded portion 17 having a square hoop shape. None, on one end side from the embedded portion 17, the central projecting end portion 21 and the left and right contact spring portions 16 extend in a fork shape, and the central projecting end portion 21 is connected to the next embedded portion via the connecting portion 18. It is connected to the part 17. The contact spring portions 16 on both sides are vertically raised from the connecting portion with the embedded portion 17 by a rear arc-shaped portion 19 once bent at a right angle, and the upper end portion of the contact spring portion 16 is The contact portion 20 is bent in a semicircular shape.
[0011]
As shown in FIGS. 5, 6, and 7, the cover 11 that covers the housing 10 is formed by bending a metal plate into a U-shape, and on both sides, the engagement claw portion 30 is engaged. A stop hole portion 29 is formed, and a fixing terminal 37 of the cover is formed by being bent in the horizontal direction from the lower end portions of both the locking claws 30.
[0012]
Next, the assembly process of the push switch and the manufacturing method thereof according to the present invention will be described with reference to FIG.
(A) Contact piece 13: It is assumed that the contact piece 13 is previously formed in a press product chain state as shown in FIG.
(1) First step: When simultaneously forming a plurality of shafts 12 with a mold, the embedded portion 17 portion of each contact piece 13 of the press product chain is molded with the contact piece embedded portion 25 portion of the shaft 12. It arranges so that it may carry out and it forms integrally.
(2) Second step: U-bending is performed on the contact spring portion 16 portion of the contact piece 13 from the arc-shaped portion 19 portion as shown by a chain line in FIGS. 1 and 4 in the same mold as in the first step.
(3) 3rd process: The embedding part 17 is hoop-cut by the cutting line 22, and is made into a strip shape.
(4) 4th process: The connection part 18 is cut and the protrusion edge part 21 is bent like FIG.1 and FIG.4.
[0013]
(B) Coil spring 14
(1) 1st process: The coil spring 14 made separately is integrated in the spring engaging protrusion 26 of the shaft 12.
[0014]
(C) Terminal 15: It shall be formed in the state of a press product chain.
(1) First step: When simultaneously forming a plurality of housings 10 with a mold, the first terminal 15a and the second terminal 15b of the press product chain are exposed on the upper surface of the bottom plate 35 of the housing 10, and A part of the first connection terminal portion 28a and the second connection terminal portion 28b continuous to the 1 terminal 15a and the second terminal 15b is molded, and the tip is integrally formed so as to protrude from the side of the housing 10 to the outside.
(2) Second step: The housing 10 is cut into a single item.
(3) Third step: Each of the housings 10 is assembled with the shaft 12 with the contact piece 13 formed in (a) (4) the fourth step and the coil spring 14 incorporated therein. At this time, the other end of the coil spring 14 is locked to the spring engaging protrusion 34 of the housing 10.
[0015]
(D) Cover 11: It shall be formed in the state of a press product chain.
(1) 1st process: The cover 11 is cut into single goods.
(2) Second step: (c) (3) The cover 11 is incorporated into the one incorporated in the third step. At this time, when the cover 11 is press-fitted from above the housing 10, the locking hole 29 of the cover 11 and the locking claw 30 of the housing 10 are engaged and incorporated.
(3) Third step: The connection terminal portion 28 of the terminal 15 is cut and completed.
[0016]
【The invention's effect】
In the present invention, an embedded portion 17 of the contact piece 13 is integrally formed in the contact piece embedded portion 25 integral with the shaft 12 by previously forming an arcuate portion 19 at a portion protruding from the embedded portion 17 to the outside. Thereafter, the arc-shaped portion 19 bent into a U shape is incorporated into the housing 10, so that the space of the fixed portion of the contact piece can be shortened as much as possible, and the span of the contact spring portion is increased accordingly. Even if it is a cheap metal material, it can be set as the push switch excellent in the characteristic. In addition, since the shaft and the contact piece are integrally formed, the assembling process is facilitated, and the processing cost can be reduced.
[0017]
Since an inexpensive material is sufficient, the material cost can be reduced.
[Brief description of the drawings]
FIG. 1 is a perspective view showing an embodiment of a shaft 12 with a contact piece 13 of a push switch and a manufacturing method thereof according to the present invention.
FIG. 2 is a cross-sectional view taken along the advancing / retreating shaft portion 23 in FIG.
3 is a cross-sectional view taken along a groove 27 in FIG. 1. FIG.
FIG. 4 is a perspective view showing an embodiment of the chained contact piece 13 used in the push switch of the present invention and the manufacturing method thereof.
FIG. 5 is a cross-sectional view taken along line AA of FIGS. 6 and 7, showing an embodiment of the push switch and the manufacturing method thereof according to the present invention.
FIG. 6 is a cross-sectional view taken along the line BB of FIGS. 5 and 7, showing an embodiment of the push switch and the manufacturing method thereof according to the present invention.
7 is a cross-sectional view taken along line CC of FIG. 6, showing an embodiment of the push switch and the manufacturing method thereof according to the present invention.
FIG. 8 is a process diagram showing an embodiment of a push switch and a manufacturing method thereof according to the present invention.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 10 ... Housing, 11 ... Cover, 12 ... Shaft, 13 ... Contact piece, 14 ... Coil spring, 15 ... Terminal, 15a ... First terminal, 15b ... Second terminal, 16 ... Contact spring part, 17 ... Embedded part, DESCRIPTION OF SYMBOLS 18 ... Connection part, 19 ... Arc-shaped part, 20 ... Contact part, 21 ... Center protrusion end part, 22 ... Cutting line, 23 ... Advance / retreat shaft part, 24 ... Sliding body part, 25 ... Contact piece embedding part, 26 ... Spring Engaging projection, 27 ... groove, 28 ... connection terminal, 28a ... first connection terminal, 28b ... second connection terminal, 29 ... locking hole, 30 ... locking claw, 31 ... positioning projection 32 ... side plate, 33 ... shaft advance / retreat hole, 34 ... spring engagement protrusion, 35 ... bottom plate, 36 ... stepped portion, 37 ... fixed terminal of the cover.

Claims (5)

接触片を設けたシャフトと、このシャフトを収納するハウジングとを具備し、前記シャフトの先端の進退軸部の進退に応じてシャフトに設けた接触片とハウジング内の端子とを接離してなるプッシュスイッチにおいて、前記接触片は、導電性金属板材からなり、基端部の埋込部から一方端側に、中央突出端部と左右の接触ばね部とを、同一面を向いたフォーク状に伸びて形成し、前記左右の接触ばね部は、埋込部との連結部分から後方へ折曲した後、弧状部を持って垂直に立ち上がらせ、この接触ばね部の上端部に、半円状に屈曲した接点部を形成したものからなり、前記シャフトと一体の接触片埋込部に、前記接触片の埋込部を、この埋込部から外部へ突出する個所に予め前記弧状部を形成して一体成形した後、この弧状部をU字形に曲げ加工したものを、前記ハウジング内の同一面内に設けた左右の前記端子に前記シャフトの進退に伴い接離するように組み込んでなることを特徴とするプッシュスイッチ。A push comprising a shaft provided with a contact piece and a housing for housing the shaft, wherein the contact piece provided on the shaft is brought into contact with and separated from a terminal in the housing in accordance with advancement and retraction of the advance / retreat shaft portion at the tip of the shaft. In the switch, the contact piece is made of a conductive metal plate, and extends from the embedded portion of the base end portion to one end side, with the center protruding end portion and the left and right contact spring portions extending in a fork shape facing the same plane. The left and right contact spring portions are bent backward from the connecting portion with the embedded portion, and then vertically raised with an arc-shaped portion, and the upper end portion of the contact spring portion is formed in a semicircular shape. The contact portion is formed by forming a bent contact portion. The contact piece embedded portion is formed in the contact piece embedded portion integral with the shaft, and the arc-shaped portion is formed in advance at a portion protruding from the embedded portion to the outside. And then bending this arcuate part into a U shape Push switch of those Engineering, wherein said to become incorporated into advance and retreat in with toward and away from the shaft to the terminals of the left and right is provided in the same plane within the housing. シャフトに一体に設けたばね係合突部とハウジングの内壁との間に、シャフトの進出を付勢するコイルばねを介在してハウジングに組み込み、ハウジングをカバーで被覆してなることを特徴とする請求項1記載のプッシュスイッチ。  A coil spring for energizing the advance of the shaft is interposed between a spring engaging protrusion integrally provided on the shaft and the inner wall of the housing, and the housing is covered with a cover. Item 1. A push switch according to item 1. 導電性金属板材を用い、基端部の埋込部から一方端側に、中央突出端部と左右の接触ばね部とを、同一面を向いたフォーク状に伸びて形成し、前記左右の接触ばね部は、埋込部との連結部分から後方へ折曲した後、弧状部を持って垂直に立ち上がらせ、この接触ばね部の上端部に、半円状に屈曲した接点部を設けて接触片を形成する工程と、この接触片の埋込部部分を、シャフトを成形するための金型に収納して接触片埋込部にてモールドし、かつ、進退軸部と摺動体部を一体に成形してシャフトを形成する工程と、前記接触片における弧状部部分を前記金型内でU字形に曲げ加工する工程と、前記接触片をシャフトに一体成形したものをハウジング内の同一面内に設けた左右の前記端子に前記シャフトの進退に伴い接離するように組み込む工程とからなることを特徴とするプッシュスイッチの製造方法。 A conductive metal plate is used, and a central projecting end and left and right contact springs are formed on one end side from the embedded portion of the base end portion, extending in a fork shape facing the same surface, and the left and right contact The spring part bends backward from the connecting part with the embedded part, then rises vertically with an arc-shaped part, and a contact part bent in a semicircular shape is provided at the upper end of the contact spring part to make contact The step of forming the piece and the embedded portion of the contact piece are housed in a mold for molding the shaft, molded in the contact piece embedded portion, and the advancing / retreating shaft portion and the sliding body portion are integrated. the same surface of the housing and the step of bending the U-shaped arcuate portions within the mold, a material obtained by integrally molding the pre SL contact piece to the shaft in a step of forming a shaft by molding, the contact piece incorporated toward and away from the advance and retreat motions of the shaft to the terminals of the left and right is provided within Method of manufacturing a push switch which is characterized by comprising a degree. 導電性金属板材を用い、基端部の埋込部から一方端側に、中央突出端部と左右の接触ばね部と前記中央突出端部から次の埋込部に連続する連結部とを、同一面を向いたフォーク状に伸びて形成し、前記左右の接触ばね部は、埋込部との連結部分から後方へ折曲した後、弧状部を持って垂直に立ち上がらせ、この接触ばね部の上端部に、半円状に屈曲した接点部を設けて連鎖した接触片を形成する工程と、これらの接触片の埋込部部分を、シャフトを成形するための金型に収納して接触片埋込部にてモールドし、かつ、進退軸部と摺動体部を一体に成形して連鎖したシャフトを形成する工程と、前記各接触片における弧状部部分を前記金型内でU字形に曲げ加工する工程と、連鎖した接触片の連結部をカットし、それぞれ独立した接触片付きシャフトを形成する工程と、連鎖した端子をそれぞれのハウジングに一体成形する工程と、連鎖したハウジングを単品にカットする工程と、前記接触片をシャフトに一体成形したものをハウジング内の同一面内に設けた左右の前記端子に前記シャフトの進退に伴い接離するように組み込む工程とからなることを特徴とするプッシュスイッチの製造方法。 Using a conductive metal plate material, from the embedded portion of the base end portion to one end side, a central protruding end portion, left and right contact spring portions, and a connecting portion continuous from the central protruding end portion to the next embedded portion, The left and right contact springs are formed to extend in the form of a fork facing the same surface. After bending backward from the connecting part with the embedded part, the left and right contact springs rise vertically with an arcuate part. A step of forming a contact piece that is linked in a semicircular shape at the upper end portion of the contact portion, and forming a contact piece that is chained, and the embedded portion of these contact pieces are accommodated in a mold for forming a shaft and contacted A step of molding in a single embedded portion and forming a chained shaft by integrally forming an advance / retreat shaft portion and a sliding body portion, and an arc-shaped portion of each contact piece in a U shape in the mold a step of bending, cutting the connecting portion of the chained the contact piece, Katazuki contact and independently Forming a shift, and a step of integrally molding of the terminals linked respectively housing, a step of cutting the housing linked to separately, the contact pieces in the same plane in the housing are integrally molded to the shaft A push switch manufacturing method comprising: a step of incorporating the left and right terminals into and away from each other as the shaft advances and retreats . 導電性金属板材を用い、基端部の埋込部から一方端側に、中央突出端部と左右の接触ばね部と前記中央突出端部から次の埋込部に連続する連結部とを、同一面を向いたフォーク状に伸びて形成し、前記左右の接触ばね部は、埋込部との連結部分から後方へ折曲した後、弧状部を持って垂直に立ち上がらせ、この接触ばね部の上端部に、半円状に屈曲した接点部を設けて連鎖した接触片を形成する工程と、これらの接触片の埋込部部分を、シャフトを成形するための金型に収納して接触片埋込部にてモールドし、かつ、進退軸部と摺動体部を一体に成形して連鎖したシャフトを形成する工程と、前記各接触片における弧状部部分を前記金型内でU字形に曲げ加工する工程と、連鎖した接触片の連結部をカットし、それぞれ独立した接触片付きシャフトを形成する工程と、前記シャフトに一体に設けたばね係合突部にシャフトの進退用のコイルばねを組み込む工程と、連鎖した端子をそれぞれのハウジングに一体成形する工程と、連鎖したハウジングを単品にカットする工程と、前記接触片をシャフトに一体成形し、かつ、コイルばねを組み込んだシャフトを独立したハウジング内の同一面内に設けた左右の前記端子に前記シャフトの進退に伴い接離するように組み込む工程と、ハウジングにカバーを被せるように組み込む工程とからなることを特徴とするプッシュスイッチの製造方法。 Using a conductive metal plate material, from the embedded portion of the base end portion to one end side, a central protruding end portion, left and right contact spring portions, and a connecting portion continuous from the central protruding end portion to the next embedded portion, The left and right contact springs are formed to extend in the form of a fork facing the same surface. After bending backward from the connecting part with the embedded part, the left and right contact springs rise vertically with an arcuate part. A step of forming a contact piece that is linked in a semicircular shape at the upper end portion of the contact portion, and forming a contact piece that is chained, and the embedded portion of these contact pieces are accommodated in a mold for forming a shaft and contacted A step of molding in a single embedded portion and forming a chained shaft by integrally forming an advance / retreat shaft portion and a sliding body portion, and an arc-shaped portion of each contact piece in a U shape in the mold a step of bending, cutting the connecting portion of the contact piece chained, Katazuki contact and independently A step of forming a shaft, a step of incorporating a coil spring for advancing and retreating the shaft into a spring engaging projection provided integrally with the shaft, a step of integrally forming chained terminals in each housing, and a chained housing as a single unit And the contact piece is integrally formed on the shaft, and the shaft incorporating the coil spring is brought into and out of contact with the left and right terminals provided on the same plane in the independent housing as the shaft advances and retreats. a step of incorporating as method for manufacturing a push switch, characterized in that comprising the step of incorporating as putting the cover on the housing.
JP21125099A 1999-07-26 1999-07-26 Push switch and manufacturing method thereof Expired - Fee Related JP4264684B2 (en)

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JP2006209975A (en) * 2005-01-25 2006-08-10 Bairong Electron Co Ltd Slide switch
JP2009158306A (en) * 2007-12-26 2009-07-16 Teikoku Tsushin Kogyo Co Ltd Sliding electronic component
JP6091350B2 (en) * 2013-06-19 2017-03-08 リンナイ株式会社 Electronic device with leakage detection function

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