JP4320421B2

JP4320421B2 - Terminal board with connection hardware for terminal board

Info

Publication number: JP4320421B2
Application number: JP2003091580A
Authority: JP
Inventors: 要二大島
Original assignee: FUJICON KABUSHIKIKAISYA
Current assignee: FUJICON KABUSHIKIKAISYA
Priority date: 2002-05-20
Filing date: 2003-03-28
Publication date: 2009-08-26
Anticipated expiration: 2023-03-28
Also published as: JP2004047431A

Description

【０００１】
【発明の属する技術分野】
この発明は、絶縁盤の中空部へ、プリント基板及びリード線挟着部を設けた接続金物を収容し、リード線などの接続を容易にすることを目的とした端子盤、リード線接続装置及び端子盤用接続金物に関する。
【０００２】
【従来の技術】
従来、プリント基板を挟着接続できる端子盤及び接続金物が提案されている（特許第３２８９１３５号）。また、プリント基板を挟着し、リード線をねじ固定するプリント基板接続金物も提案されている（実用新案登録第３０４４４６２号）。
【０００３】
【特許文献１】
特許第３２８９１３５号公報
【０００４】
【特許文献２】
実用新案登録第３０４４４６２号公報
【０００５】
【発明により解決しようとする課題】
前記従来の発明・考案においては、リード線端子と端子盤の接続金物の固定はビス止めであったから、組立に際し、ビスを回転する操作が必須要件となり、作業の複雑化と、能率の低下を来していた。
【０００６】
また、前記接続に際し、リード線端子の挿入不十分又はビスの締付け不十分の場合には、接触不良を来すおそれもあって、品質管理上の問題点を生じるおそれもあった。
【０００７】
【課題を解決するための手段】
然るにこの発明は、リード線接続金物には、平面固定部と弾性当接部とにより、リード線挟着手段を構成したので、リード線の端子を、前記平面固定部と弾性当接端との間へ挿入するのみで、リード線とその接続金物とを確実に接続することができるようになり、前記従来の問題点を解決したのである。
【０００８】
即ちこの発明は、
絶縁盤（１）の内部に形成されていて互いに連通している上部側中空部（２）と、下部側中空部（５）とに対して、リード線接続金物（１４）が挿入設置されてなる端子盤用接続金物であって、
当該リード線接続金物（１４）は、固定金具（１７）と、当該固定金具（１７）と協働してリード線を狭着する狭着金具（１８）とで構成され、
前記固定金具（１７）は、金属板（１９）の右側縁部と左側縁部とが折り曲げられて左右の側壁（１５、１６）が形成されていると共に前記右側の側壁（１６）に切り欠き（１６ａ）が形成され、この形成された前記リード線接続金物（１４）の前記固定金具（１７）の左右の側壁（１５、１６）が、それぞれ、絶縁盤（１）の内部に形成されている上部側中空部（２）の左側の内壁と、右側の内壁とに当接するように前記リード線接続金物（１４）の前記固定金具（１７）が絶縁盤（１）の内部に形成されている上部側中空部（２）に挿入設置されるものであり、
前記固定金具（１７）の金属板（１９）にプリント基板を弾性狭着する一対の狭着片（２０、２１）が、下側方向に向かうにつれてお互いに近づく方向に屈曲成形されて弾性狭着できる隙間（Ｓ）を隔てて配置されるように前記固定金具（１７）の金属板（１９）の下端縁中央部から下方へ向かって連設され、
前記狭着金具（１８）は、一端側を弾性斜片（２２ａ）とし、他端側において上側方向に向かって凸弧状に形成されている弾性金物（２２）からなり、弾性斜片（２２ａ）の先端を固定金具（１７）の左側の側壁（１５）の内側（１５ａ）に対向させ、狭着金具（１８）の他端（２２ｂ）を前記固定金具（１７）の右側の側壁（１６）とスリット（１７ａ）との間に差し込むと共に、前記切り欠き（１６ａ）に掛止することによって前記狭着金具（１８）の他端（２２ｂ）を固定金具（１７）の右側の側壁（１６）の内側に装着できるように屈曲成形して構成されていて前記固定金具（１７）に装着され、
前記絶縁盤（１）の上部側中空部（２）の頂部に、合成樹脂製の操作片（８）が昇降可能に設置され、操作片（８）の下端は、前記弾性金物（２２）の弾性斜片（２２ａ）に当接し、操作片（８）に下側方向に向かう力を付与すれば、弾性斜片（２２ａ）は下方へ屈曲し、下側方向に向かう力を除けば、弾力によって前記弾性斜片（２２ａ）が旧位置へ復帰する
ことを特徴とする端子盤用接続金物を備えた端子盤である。
【００１２】
前記発明においては、リード線の端子を、リード線接続金物の平面固定部と、弾性当接部で挟着したので、挟着接続状態が常時弾力当接され、使用中に弛み、接触不良を生じるおそれはない。
【００１３】
前記リード線接続時には、リード線端子を一定の長さまで挿入するだけで接続作業が終了し、しかも確実に接続されるので、接触不良を生じるおそれはない。また、弾性当接部を、操作片で離接自在に摺動させることができるので、弾力の強さを十分付与することができる。
【００１４】
また、前記平面固定部へ切断端による段部を設けたので、リード線端子が脱抜方向へ引っ張られることがあっても、リード線端子は前記段部と、弾性当接部により挟まれ、脱抜力が強くなるほど挟着力も強くなるので、端子が切れるまでは脱抜しない。
【００１５】
前記リード線接続金物の下部を、鉤状に屈曲し、弾性付与したり、プリント基板を弾性狭着できる隙間を隔てて配置した一対の狭着片を下方へ向かって連設したりしているので、プリント基板を挿入すれば、プリント基板の導電部と弾接し、確実に接続することができる。
【００１６】
【発明の実施の形態】
この発明は、リード線端子と、リード線接続金物とを当接接続することを要件とするもので、従来のビス接続を改良したものである。
【００１７】
この発明は、リード線接続金物を端子盤の内腔部へ固定し、リード線端子の挿入部には、リード線接続金物の平面固定部と該平面固定部へリード線端子を加圧当接させるための弾性当接部とを有し、リード線端子を挿入するのみで、脱抜できないように挟着させる。
【００１８】
前記弾性当接部の弾力を十分大きくとるために、弾性当接部を移動させるための操作片を設けている。
【００１９】
即ち弾性当接部は、操作片を下圧することによって挟着間隔（平面部と弾性当接部）を十分大きくとることができ、リード線端子を何等の抵抗を受けることなく、挟着部へ挿入することができる。
【００２０】
次に操作片の下圧力を除くと、当接部は弾力により旧位置に戻るので、必然的にリード線端子を挿圧することになる。
【００２１】
前記弾性当接部を有する接続金物は、前記平面固定部に対し、鋭角に斜設してある（平面固定部と弾性当接部とがなす角が鋭角である）ので、リード線端子が脱抜側へ引っ張られると、前記平面固定部と、弾性当接部との間隙は狭くなり（挟着力が強くなる）、脱抜力に対応するので、事実上、リード線端子が切れなければ、脱抜するおそれはない。
【００２２】
前記リード線接続金物の下部（他端）には、鉤状に屈曲し、弾性付与したり、プリント基板を弾性狭着できる隙間を隔てて配置した一対の狭着片を下方へ向かって連設したりしたプリント基板挟着手段が連設してあるので、プリント基板を挿入するのみで容易にプリント基板を接続することができる。
【００２３】
前記発明によれば、リード線端子の接続を自動化することも容易である。
【００２４】
【実施例１】
この発明の実施例を図１、２、３、４に基づいて説明する。絶縁盤１の中空部２へ、リード線接続金物３の上部のＬ字状部を収容設置し、下部のプリント基板４の当接部３ｂとを、中空部５へ挿入設置する。
【００２５】
前記リード線接続金物３の縦片３ａは、前記中空部２の垂直壁に当接してある。前記中空部２の上部に、リード線６の端子６ａを、前記リード線接続金物３へ、前記端子６ａを当接挟着するための凸弧状の弾性金物７を収容し、弾性金物７の一端部７ａは、前記中空部２の他側壁に当接固定し、他端部は、前記リード線接続金物３の縦片３ａに対し、下向に斜に対向し斜片７ｂを形成し、他端部７ｂの端面は、前記縦片３ａに弾力当接させてあり、端子盤１５を構成してある。
【００２６】
前記絶縁盤１の、前記中空部２の頂部には、合成樹脂製の操作片８が昇降可能に設置され、前記操作片８の下端は、前記弾性金物７の斜片７ｂに当接している。従って、操作片８に下圧力を付与すれば、斜片７ｂは下方へ屈曲することになり（鎖線図示）、加圧力を除けば、弾力によって旧位置へ復帰する。
【００２７】
前記リード線接続金物３の水平部３ｃの端部には、下方への屈曲部３ｄが連設され、屈曲部３ｄ端は反転屈曲して弾性鉤部３ｂが形成されている。図中３ｅは、弾性鉤部の溝、３ｆはリブである。
【００２８】
前記実施例において、操作片８を矢示１０のように加圧すれば、弾性金物７の斜片７ｂが図１中下方へ曲がるので、リード線６の端子６ａを図１中矢示９のように差し込むことができる。
【００２９】
この場合に、リード線６の端子６ａを差し込む隙間ができており、挿入抵抗はないが、前記端子６ａの太さと、隙間がほぼ等しい場合であっても、端子６ａの移動方向は、隙間が広くなる方向であるから、支障はない。
【００３０】
前記のようにして端子６ａが所定長さだけ挿入されたならば、前記操作片８を放せば、弾性金物７は、弾性により旧位置方向へ復帰しようとするので、弾性金物７の端面により、端子６ａを矢示１１の方向へ押しつける。この場合にリード線接続金物３の垂直部３ａの上端に固定した止片１２の下端面が、前記端子６ａに当接するので、挟着状態は愈々堅固になる。
【００３１】
前記止片１２は、端子挿入前は弾性金物７の端面に掛止し、その位置を保持するが、端子挿入後は、弾性金物７と共同して端子を挟着し、端子の脱抜方向の力に対しては、有効に掛止し抵抗となってこれを阻止する。
【００３２】
前記リード線接続金物３の下部に連設した弾性鉤部３ｂは、プリント基板を下方から矢示１３のように挿入した際に、その導通部へ弾接し、確実に接続することができる。
【００３３】
なお、弾性鈎部の向きは、プリント基板を挿入できる形状であれば、例えば、図４（ａ）、（ｃ）図示のようにどちらの方向に向いていてもよい。
【００３４】
【実施例２】
この発明の他の実施例につき図５、図６、図７を参照しつつ説明する。この実施例のリード線接続金物１４は、実施例１のリード線接続金物３と同様に絶縁盤１の中空部２及び中空部５へ挿入設置して使用される。
【００３５】
リード線接続金物１４は、固定金具１７と固定金具１７と協働してリード線を狭着する狭着金具１８とで構成されている。
【００３６】
固定金具１７は、金属板１９の右側縁部と左側縁部とを折り曲げて左右の側壁１５、１６を形成し、金属板１９の下端縁中央部から金属板にプリント基板を弾性狭着できる隙間Ｓを隔てて配置した一対の狭着片２０、２１を下方へ向かって連設して構成した。右側の側壁１６には切り欠き１６ａを形成した。また、狭着片２０、２１はお互いに近づく方向に屈曲成形されて、弾性狭着できる隙間Ｓを形成している。
【００３７】
狭着金具１８は、一端側を弾性斜片２２ａとする凸弧状の弾性金物２２からなり、弾性斜片２２ａの先端を固定金具１７の左側の側壁１５の内側１５ａに対向させて、弾性金具２２の他端２２ｂを右側の側壁１６に装着できるように屈曲成形して構成した。この狭着金具１８は、屈曲成形した弾性金具２２の他端２２ｂを固定金具１７の右側側壁１６とスリット１７ａへ狭着金具の爪部を差し込んで折り曲げると共に、切り欠き１６ａに掛止して固定金具１７に装着した。
【００３８】
このように構成したリード線接続金物１４は、図６図示のように左右の側壁１５、１６が中空部２の内壁に当接し、狭着片２０、２１が中空部５内に位置するように絶縁盤１内へ収容した。
【００３９】
絶縁盤１の、中空部２の頂部には、合成樹脂製の操作片８が昇降可能に設置され、操作片８の下端は、弾性金具２２の弾性斜片２２ａに当接している。この点は、実施例１と同様であり、操作片８に下圧力を付与すれば、弾性斜片２２ａは下方へ屈曲することになり、加圧力を除けば、弾力によって旧位置へ復帰する。
【００４０】
このように構成され、絶縁盤１に装着されたリード線接続金物１４の使用方法、その他の特徴は実施例１と同様であるので、その詳細な説明は省略する。
【００４１】
なお、図６中、符号２３は、狭着片２０、２１に狭着されたプリント基板である。
【００４２】
以上、本発明の好ましい実施の形態を添付図面を参照して説明したが、本発明はかかる実施の形態に限定されるものではなく、特許請求の範囲の記載から把握される技術的範囲において種々な形態に変更可能である。
【００４３】
例えば、実施例２のリード線接続金物１４は、図７図示のリード線接続金物２４のように狭着片２９を左側の側壁２５から連設し、これに伴って狭着片２８を左側に移設下した構成とすることもできる。
【００４４】
また、図７図示の例では、狭着金具（弾性金具）２７の先端が２７aが右側の側壁２６の内面に当接させている点は、実施例１、実施例２と同一であるが、固定金具３１への取り付け方が異なっている。すなわち、図７図示のように固定金具のスリット３１ａに狭着金具（弾性金具）２７の爪部２７ｄを差し込んで折り曲げると共に、左側の側壁２５の上方に鍔部３０を設け、左側の側壁２５の上縁と鍔部３０との間に凸弧状部２７ｂを嵌着することもできる。
【００４５】
【発明の効果】
この発明によれば、リード線接続金物と弾性金物でリード線端子を挟着するので、挟着作業が極めて容易確実であり、自動化が容易になる効果がある。また、前記弾性金物は、リード線端子の挿入方向へ斜に（鋭角に）設けてあるので、リード線を脱抜する方向へ外力が掛かった場合においては、弾性金物端と、接続金物との隙間が小さくなる方向へ移動するので、結局接続金物と弾性金物とによる挟着力が大きくなり、脱抜を未然に防止することができる効果がある。
【図面の簡単な説明】
【図１】この発明の実施例の一部断面拡大図。
【図２】同じく正面図。
【図３】（ａ）同じく平面図。
（ｂ）同じく底面図。
【図４】（ａ）同じく接続金具の実施例の拡大正面図。
（ｂ）同じく拡大側面図。
（ｃ）同じく他の実施例の拡大正面図。
【図５】この発明の接続金具の他の実施例の断面拡大図。
【図６】図５図示の接続金具を絶縁盤に装着した状態の断面拡大図。
【図７】同じく他の実施例の拡大図であって、
（ａ）は平面図。
（ｂ）は左側面図。
（ｃ）は正面図。
【符号の説明】
１絶縁盤
２、５中空部
３、１４、２４リード線接続金物
４プリント基板
６リード線
６ａ端子
７、２２、２７弾性金物
８操作片[0001]
BACKGROUND OF THE INVENTION
The present invention accommodates a connection board provided with a printed circuit board and a lead wire clamping portion in a hollow portion of an insulating board, and a terminal board, a lead wire connection device, and a device for facilitating connection of a lead wire and the like It relates to connection hardware for terminal boards.
[0002]
[Prior art]
Conventionally, a terminal board and a connection hardware capable of sandwiching and connecting printed boards have been proposed (Japanese Patent No. 3289135). In addition, a printed circuit board connection hardware for sandwiching a printed circuit board and fixing a lead wire with a screw has been proposed (utility model registration No. 3044462).
[0003]
[Patent Document 1]
Japanese Patent No. 3289135 gazette
[Patent Document 2]
Utility Model Registration No. 3044462 [0005]
[Problems to be solved by the invention]
In the above-mentioned conventional invention / invention, the connection of the lead wire terminal and the terminal board was fixed with a screw, so that the operation of rotating the screw is an essential requirement during assembly, which complicates work and reduces efficiency. It was coming.
[0006]
Further, in the case of the above connection, if the lead wire terminal is not sufficiently inserted or the screw is not sufficiently tightened, there is a possibility that a contact failure may occur and a problem in quality control may occur.
[0007]
[Means for Solving the Problems]
However, according to the present invention, the lead wire connecting hardware comprises the lead wire clamping means by the flat surface fixing portion and the elastic contact portion, so that the lead wire terminal is connected to the flat surface fixing portion and the elastic contact end. The lead wire and its connecting hardware can be reliably connected only by inserting them in between, thus solving the conventional problems.
[0008]
That is, this invention
A lead wire fitting (14) is inserted and installed in the upper hollow portion (2) and the lower hollow portion (5) that are formed inside the insulating board (1) and communicate with each other. The connection hardware for the terminal board
The lead wire connecting hardware (14) is composed of a fixing metal fitting (17) and a narrow fitting metal fitting (18) for tightly fitting the lead wire in cooperation with the fixing metal fitting (17).
The fixing bracket (17) is formed by bending the right and left side edges of the metal plate (19) to form left and right side walls (15, 16) and notches in the right side wall (16). (16a) is formed, and the left and right side walls (15, 16) of the fixed fitting (17) of the formed lead wire connection hardware (14) are respectively formed inside the insulating board (1). The fixing fitting (17) of the lead wire fitting (14) is formed inside the insulating board (1) so as to contact the left inner wall and the right inner wall of the upper hollow portion (2). It is inserted and installed in the upper side hollow part (2),
A pair of narrowing pieces (20, 21) for elastically constricting the printed circuit board to the metal plate (19) of the fixing bracket (17) are bent and formed in a direction approaching each other toward the lower side, and elastic constriction is achieved. The lower end edge central portion of the metal plate (19) of the fixing bracket (17) is continuously provided downward so as to be arranged with a gap (S) that can be formed,
The narrow fitting (18) has an elastic slant piece (22a) at one end side and is composed of an elastic metal piece (22) formed in a convex arc shape toward the upper side at the other end side, and the elastic slant piece (22a). The other end (22b) of the narrow fitting (18) is made to face the inner side (15a) of the left side wall (15) of the fixing bracket (17), and the right side wall (16) of the fixing bracket (17). And the other end (22b) of the narrow fitting (18) by inserting it between the slit (17a) and the side wall (16) on the right side of the fixing fitting (17). Is bent and molded so that it can be mounted on the inside of the fixing bracket (17),
A synthetic resin operation piece (8) is installed on the top of the upper hollow portion (2) of the insulating board (1) so as to be movable up and down, and the lower end of the operation piece (8) is attached to the elastic metal piece (22). If the elastic slant piece (22a) abuts on the elastic slant piece (22a) and a downward force is applied to the operation piece (8), the elastic slant piece (22a) bends downward and elastic force is obtained except for the downward force. The elastic slant piece (22a) is returned to the old position by the terminal board.
[0012]
In the above invention, the terminal of the lead wire is sandwiched between the flat fixing portion of the lead wire connecting hardware and the elastic contact portion, so that the sandwiched connection state is always elastically contacted and loosened during use, resulting in poor contact. There is no risk of it occurring.
[0013]
At the time of connecting the lead wire, the connection work is completed only by inserting the lead wire terminal to a certain length, and the connection is surely made, so there is no possibility of causing a contact failure. In addition, since the elastic contact portion can be slidably and slidable with the operation piece, sufficient elasticity can be imparted.
[0014]
In addition, since the stepped portion by the cutting end is provided in the flat fixed portion, even if the lead wire terminal is pulled in the removal direction, the lead wire terminal is sandwiched between the stepped portion and the elastic contact portion, As the removal force increases, the clamping force also increases, so do not remove until the terminal is cut.
[0015]
The lower part of the lead wire fitting is bent in a bowl shape to give elasticity, or a pair of narrowing pieces arranged with a gap in which the printed circuit board can be elastically narrowed are arranged downward. Therefore, if the printed circuit board is inserted, it can be elastically contacted with the conductive portion of the printed circuit board and can be securely connected.
[0016]
DETAILED DESCRIPTION OF THE INVENTION
The present invention requires the contact connection between the lead wire terminal and the lead wire connection hardware, and is an improvement over the conventional screw connection.
[0017]
In this invention, the lead wire connecting hardware is fixed to the inner cavity of the terminal board, and the lead wire terminal is press-contacted to the flat fixing portion of the lead wire connecting hardware and the flat fixing portion to the insertion portion of the lead wire terminal. Elastic contact part for making it stick, and it is clamped so that it cannot be removed only by inserting a lead wire terminal.
[0018]
In order to obtain a sufficiently large elasticity of the elastic contact portion, an operation piece for moving the elastic contact portion is provided.
[0019]
In other words, the elastic contact portion can take a sufficiently large interval (planar portion and elastic contact portion) by lowering the operation piece, so that the lead wire terminal is not subjected to any resistance to the sandwich portion. Can be inserted.
[0020]
Next, when the lower pressure of the operation piece is removed, the contact portion returns to the old position due to elasticity, so that the lead wire terminal is inevitably inserted.
[0021]
Since the connection hardware having the elastic contact portion is obliquely inclined with respect to the plane fixing portion (the angle formed by the plane fixing portion and the elastic contact portion is an acute angle), the lead wire terminal is detached. When pulled to the extraction side, the gap between the flat surface fixing portion and the elastic contact portion is narrowed (the pinching force is increased) and corresponds to the removal force. There is no risk of withdrawal.
[0022]
A pair of narrowing pieces arranged at a lower portion (the other end) of the lead wire connection hardware, bent in a bowl shape and provided with elasticity, or spaced apart with a gap capable of elastically constricting the printed circuit board are provided downward. Since the printed board sandwiching means is continuously provided, the printed board can be easily connected only by inserting the printed board.
[0023]
According to the invention, it is easy to automate the connection of the lead wire terminals.
[0024]
[Example 1]
An embodiment of the present invention will be described with reference to FIGS. The upper L-shaped portion of the lead wire connecting metal 3 is accommodated and installed in the hollow portion 2 of the insulating board 1, and the abutting portion 3 b of the lower printed board 4 is inserted and installed in the hollow portion 5.
[0025]
The vertical piece 3 a of the lead wire connecting metal 3 is in contact with the vertical wall of the hollow portion 2. In the upper part of the hollow portion 2, a terminal 6 a of a lead wire 6 is accommodated with a convex arc-shaped elastic metal 7 for abutting and clamping the terminal 6 a to the lead wire connecting metal 3. The part 7a abuts and is fixed to the other side wall of the hollow part 2, and the other end is obliquely opposed downward to the vertical piece 3a of the lead wire connecting metal 3 to form a slant piece 7b. The end surface of the end portion 7 b is elastically brought into contact with the vertical piece 3 a to constitute a terminal board 15.
[0026]
A synthetic resin operation piece 8 is installed on the top of the hollow portion 2 of the insulating board 1 so as to be movable up and down, and the lower end of the operation piece 8 is in contact with the inclined piece 7b of the elastic metal piece 7. . Therefore, if a downward pressure is applied to the operation piece 8, the slant piece 7b is bent downward (shown by a chain line), and if the applied pressure is removed, the slant piece 7b returns to the old position by elasticity.
[0027]
A bent portion 3d is formed at the end of the horizontal portion 3c of the lead wire connecting metal 3, and the bent portion 3d is bent in an inverted manner to form an elastic flange portion 3b. In the figure, 3e is a groove of the elastic flange portion, and 3f is a rib.
[0028]
In the above embodiment, if the operating piece 8 is pressurized as indicated by an arrow 10, the slant piece 7b of the elastic metal piece 7 bends downward in FIG. 1, so that the terminal 6a of the lead wire 6 is indicated by the arrow 9 in FIG. Can be plugged into.
[0029]
In this case, there is a gap into which the terminal 6a of the lead wire 6 is inserted, and there is no insertion resistance. However, even if the thickness of the terminal 6a is substantially equal to the gap, the movement direction of the terminal 6a is There is no problem because it is widening.
[0030]
If the terminal 6a is inserted by a predetermined length as described above, if the operating piece 8 is released, the elastic metal piece 7 tends to return to the old position direction due to elasticity. The terminal 6a is pressed in the direction of arrow 11. In this case, since the lower end surface of the stopper 12 fixed to the upper end of the vertical portion 3a of the lead wire connecting metal 3 abuts on the terminal 6a, the clamping state is often firm.
[0031]
The stopper 12 is hooked to the end face of the elastic metal 7 before the terminal is inserted and holds its position. After the terminal is inserted, the terminal is clamped together with the elastic metal 7 to remove the terminal. This force is effectively latched and becomes a resistance to prevent this.
[0032]
When the printed circuit board is inserted from the lower side as indicated by arrow 13, the elastic flange portion 3 b provided continuously to the lower portion of the lead wire connecting metal 3 can be elastically contacted with the conductive portion and can be reliably connected.
[0033]
The direction of the elastic flange portion may be in any direction as shown in FIGS. 4A and 4C as long as the printed board can be inserted.
[0034]
[Example 2]
Another embodiment of the present invention will be described with reference to FIGS. 5, 6, and 7. FIG. The lead wire connecting metal 14 of this embodiment is used by being inserted into the hollow portion 2 and the hollow portion 5 of the insulating board 1 in the same manner as the lead wire connecting metal 3 of the first embodiment.
[0035]
The lead wire connecting hardware 14 includes a fixing fitting 17 and a narrow fitting 18 that cooperates with the fixing fitting 17 to tightly connect the lead wires.
[0036]
The fixing bracket 17 is formed by bending the right and left edges of the metal plate 19 to form the left and right side walls 15 and 16, and a gap that allows the printed circuit board to be elastically constricted from the center of the lower edge of the metal plate 19 to the metal plate. A pair of narrowing pieces 20, 21 arranged with a distance S therebetween are connected downward. A cutout 16 a was formed in the right side wall 16. Further, the narrowing pieces 20 and 21 are bent in a direction approaching each other to form a gap S that can be elastically narrowed.
[0037]
The narrow fitting 18 is formed of a convex arc-shaped elastic metal piece 22 having one end side as an elastic slant piece 22a, and the elastic slant piece 22a is opposed to the inner side 15a of the left side wall 15 of the fixing metal piece 17 so that the elastic metal piece 22 is formed. The other end 22b is bent and configured to be attached to the right side wall 16. The narrow fitting 18 is bent by bending the other end 22b of the elastic fitting 22 formed by bending the nail portion of the narrow fitting into the right side wall 16 and the slit 17a of the fixing fitting 17 and hooking it on the notch 16a. Attached to the metal fitting 17.
[0038]
As shown in FIG. 6, the left and right side walls 15, 16 are in contact with the inner wall of the hollow portion 2, and the narrow pieces 20, 21 are positioned in the hollow portion 5. It was accommodated in the insulating board 1.
[0039]
A synthetic resin operation piece 8 is installed on the top of the hollow portion 2 of the insulating board 1 so as to be movable up and down, and the lower end of the operation piece 8 is in contact with the elastic slanting piece 22 a of the elastic metal fitting 22. This point is the same as that of the first embodiment. When a lower pressure is applied to the operation piece 8, the elastic slanting piece 22a is bent downward. When the applied pressure is removed, the elastic piece 22a returns to the old position by elasticity.
[0040]
Since the usage method and other features of the lead wire connection hardware 14 configured in this manner and attached to the insulating board 1 are the same as those in the first embodiment, detailed description thereof will be omitted.
[0041]
In FIG. 6, reference numeral 23 denotes a printed circuit board that is tightly attached to the narrow pieces 20 and 21.
[0042]
As mentioned above, although preferred embodiment of this invention was described with reference to the accompanying drawing, this invention is not limited to this embodiment, In the technical range grasped | ascertained from description of a claim, various It can be changed to various forms.
[0043]
For example, in the lead wire connecting hardware 14 of the second embodiment, a narrow fitting piece 29 is continuously provided from the left side wall 25 like the lead wire connecting hardware 24 shown in FIG. It is possible to adopt a relocated configuration.
[0044]
Further, in the example shown in FIG. 7, the point that the tip of the narrow fitting (elastic fitting) 27 is in contact with the inner surface of the right side wall 26 is the same as in the first and second embodiments. The attachment to the fixing bracket 31 is different. That is, as shown in FIG. 7, the claw portion 27d of the narrow fitting (elastic fitting) 27 is inserted into the slit 31a of the fixing fitting and bent, and the flange portion 30 is provided above the left side wall 25, so that the left side wall 25 The convex arc-shaped portion 27 b can be fitted between the upper edge and the collar portion 30.
[0045]
【The invention's effect】
According to the present invention, since the lead wire terminal is clamped by the lead wire connecting metal and the elastic metal, the clamping operation is extremely easy and reliable, and there is an effect that automation is facilitated. Further, since the elastic hardware is provided obliquely (at an acute angle) in the lead wire terminal insertion direction, when an external force is applied in the direction of removing the lead wire, the elastic metal end and the connection hardware Since the gap moves in the direction of decreasing, the clamping force between the connecting hardware and the elastic hardware is increased, and there is an effect that the removal can be prevented in advance.
[Brief description of the drawings]
FIG. 1 is a partially enlarged sectional view of an embodiment of the present invention.
FIG. 2 is a front view of the same.
FIG. 3A is a plan view of the same.
(B) Similarly bottom view.
FIG. 4 (a) is an enlarged front view of an embodiment of the connection fitting.
(B) Similarly an enlarged side view.
(C) The enlarged front view of another Example similarly.
FIG. 5 is an enlarged cross-sectional view of another embodiment of the connection fitting of the present invention.
6 is an enlarged cross-sectional view of a state in which the connection fitting shown in FIG. 5 is mounted on an insulating board.
FIG. 7 is an enlarged view of another embodiment,
(A) is a top view.
(B) is a left side view.
(C) is a front view.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Insulation board 2, 5 Hollow part 3, 14, 24 Lead wire connecting metal 4 Printed circuit board 6 Lead wire 6a Terminal 7, 22, 27 Elastic hardware 8 Operation piece

Claims

A lead wire fitting (14) is inserted and installed in the upper hollow portion (2) and the lower hollow portion (5) that are formed inside the insulating board (1) and communicate with each other. The connection hardware for the terminal board
The lead wire connecting hardware (14) is composed of a fixing metal fitting (17) and a narrow fitting metal fitting (18) for tightly fitting the lead wire in cooperation with the fixing metal fitting (17).
The fixing bracket (17) is formed by bending the right and left side edges of the metal plate (19) to form left and right side walls (15, 16) and notches in the right side wall (16). (16a) is formed, and the left and right side walls (15, 16) of the fixed fitting (17) of the formed lead wire connection hardware (14) are respectively formed inside the insulating board (1). The fixing fitting (17) of the lead wire fitting (14) is formed inside the insulating board (1) so as to contact the left inner wall and the right inner wall of the upper hollow portion (2). It is inserted and installed in the upper side hollow part (2),
A pair of narrowing pieces (20, 21) for elastically constricting the printed circuit board to the metal plate (19) of the fixing bracket (17) are bent and formed in a direction approaching each other toward the lower side, and elastic constriction is achieved. The lower end edge central portion of the metal plate (19) of the fixing bracket (17) is continuously provided downward so as to be arranged with a gap (S) that can be formed,
The narrow fitting (18) has an elastic slant piece (22a) at one end side and is composed of an elastic metal piece (22) formed in a convex arc shape toward the upper side at the other end side, and the elastic slant piece (22a). The other end (22b) of the narrow fitting (18) is made to face the inner side (15a) of the left side wall (15) of the fixing bracket (17), and the right side wall (16) of the fixing bracket (17). And the other end (22b) of the narrow fitting (18) by inserting it between the slit (17a) and the side wall (16) on the right side of the fixing fitting (17). Is bent and molded so that it can be mounted on the inside of the fixing bracket (17),
A synthetic resin operation piece (8) is installed on the top of the upper hollow portion (2) of the insulating board (1) so as to be movable up and down, and the lower end of the operation piece (8) is attached to the elastic metal piece (22). If the elastic slant piece (22a) abuts on the elastic slant piece (22a) and a downward force is applied to the operation piece (8), the elastic slant piece (22a) bends downward and elastic force is obtained except for the downward force. The elastic slant piece (22a) is returned to the old position by the terminal board having the terminal board connection hardware.