JP2004095211A - Terminal stand - Google Patents

Terminal stand Download PDF

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Publication number
JP2004095211A
JP2004095211A JP2002251011A JP2002251011A JP2004095211A JP 2004095211 A JP2004095211 A JP 2004095211A JP 2002251011 A JP2002251011 A JP 2002251011A JP 2002251011 A JP2002251011 A JP 2002251011A JP 2004095211 A JP2004095211 A JP 2004095211A
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Japan
Prior art keywords
conductive wire
terminal
fitting
screw
claw
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JP2002251011A
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Japanese (ja)
Inventor
Yutaka Osada
長田 豊
Kazuko Watanabe
渡辺 和子
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Osada Co Ltd
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Osada Co Ltd
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Priority to JP2002251011A priority Critical patent/JP2004095211A/en
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  • Connections Arranged To Contact A Plurality Of Conductors (AREA)

Abstract

<P>PROBLEM TO BE SOLVED: To greatly lower the height of a terminal stand compared with a conventional product and reduce the weight and the cost thereof, while retaining conductor wire connecting workability keeping a separated state generated when a conductor wire holding metal fitting is separated from a terminal fitting by loosening a screw for fixing the conductor wire, and retaining insulating property of a printed circuit board for mounting the terminal stand or the like as in the past. <P>SOLUTION: The terminal stand is constructed so that a plurality of terminal fittings 4, to each of which conductor wire 8 is connected by using a screw 6, are fixed in an aligned state to a main body 5 composed of an insulator, and equipped with a conductor wire holding metal fitting 2 mounted to the screw 6 in such a manner that the conductor wire 8 can be held between the terminal fitting 4 and itself, and a pawl-shaped elastic body 3 arranged on a side of the terminal fitting 4 constructed in such a manner that a pawl part 3a, biasing the conductor wire holding metal fitting 2 in a direction separating from the terminal fitting 4, engages with the conductor wire holding metal fitting 2 at least when the screw 6 is not in a state of being screwed in the terminal fitting 4. <P>COPYRIGHT: (C)2004,JPO

Description

【0001】
【発明の属する技術分野】
本発明は、ねじを弛めることで導電線押え金具がばね力により大きく上昇してその状態で端子金具からの離間高さが維持されるようにしたいわゆる「ねじアップ機構」付きの端子台に係り、特に従来の導電線押え金具離間用のコイルばねに代えて該導電線押え金具の側方に配置した爪状弾性体を用い、該爪状弾性体により該離間作用を行わせることで、導電線固定用のねじを弛めて導電線押え金具を端子金具から離間させたときにその離間状態を維持する導電線接続作業性及び端子台取付け対象のプリント配線基板等との間の絶縁性を従来通り維持しながら、高さを従来品よりも大幅に低くすることができ、しかもコストの低減を図ることが可能な端子台に関する。
【0002】
【従来の技術】
端子台は、プリント配線基板や電源ユニット、配電盤等の入出力用接点として一般に広く用いられており、その種類は端子数、形状、導線接続形態等の違いによって非常に多岐にわたる。
【0003】その一種として、特願平9−35780に開示されているような、いわゆるねじアップ機構付きの端子台が一般に提供されている。このねじアップ機構は、ねじにかしめられた導電線押え金具に対し、ねじの下方に配設されたコイルばねのばね力が及ぶようにしておき、導電線押え金具が、ねじが端子金具と螺合している間は該ねじに伴って上下動し、螺合しなくなったときにコイルばねにより持ち上げられ端子金具から離間しかつその離間高さが維持されるようにし、導電線を差し込み易くして端子台への導電線の接続作業を容易にしたものである。
【0004】しかし従来のねじアップ機構付きの端子台では、ねじが端子金具に螺合していてコイルばねによる付勢が不要なときまで該コイルばねの付勢力が導電線押え金具に作用していたため、導電線が接続され使用状態におかれた場合に、ねじを弛めようとする余分な力が本体等に作用し続けるという問題があった。
【0005】またコイルばねは、ねじの下方、即ち持ち上げようとする導電線押さえ金具の下方に配置する以外に方法がなかったので、コイルばねの圧縮時の高さの分だけはどうしても端子台の全高が高くなり、この結果重量が増すばかりでなく、プリント配線基板への実装上非常に不利であり、省スペース化が妨げられるという問題があった。
【0006】
【発明が解決しようとする課題】
本発明は、上記した従来技術の欠点を除くためになされたものであって、その目的とするところは、複数の端子金具を絶縁体からなる本体に整列状態で固定してなり夫々の端子金具に対してねじを用いて導電線を接続するように構成された端子台において、端子金具との間に導電線を挾むことができるようにねじに取り付けられた導電線押え金具と、端子金具の側方に配設され少なくともねじが端子金具に螺合していない状態においては導電線押え金具を端子金具から離間させる方向に付勢する爪部が導電線押え金具に係合するように構成された爪状弾性体とを備えることによって、導電線固定用のねじを弛めて導電線押え金具を端子金具から離間させたときにその離間状態を維持する良好な導電線接続作業性を維持しながら、端子台の高さを、コイルばねを用いたねじアップ機構付きの従来品よりも大幅に低くすることであり、またこれによって省スペース化と軽量化を図り、コイルばねを廃止することで端子台のコストの低減を図ることである。
【0007】また他の目的は、上記構成において、ねじが端子金具に螺合していない状態においては導電線押え金具を端子金具から離間させる方向に付勢する爪部が導電線押え金具に係合しねじが端子金具に螺合している状態においては爪部は導電線押え金具に係合せずその側面に単に当接することで付勢力が無効化されるように構成された爪状弾性体を備えることによって、付勢力が必要なときだけ導電線押え金具に該付勢力が作用し、ねじを回す際には余計な抵抗力が作用しないようにすると共に、導電線を接続して使用状態におかれた端子台内でねじを弛めようとする余計な力が作用し続けることがないようにすることである。
【0008】更に他の目的は、上記構成において、爪状弾性体を合成樹脂製のものとすることによって、取付け対象物であるプリント配線基板の配線パターンの設計等を、端子台との電気絶縁を心配することなく行うことができるようにすることである。
【0009】また他の目的は、上記構成において、金属製の爪状弾性体を用い、本体の取付け対象物との接触部に合成樹脂製の絶縁部材をインサートすることによって、爪状弾性体の耐久性を向上させると共に、導電線接続時に端子金具と電気的に導通する導電線押え金具及び爪状弾性体が、近接するプリント配線基板の配線パターン等と短絡しないようにして、プリント配線基板の配線パターンの設計等において端子台との電気絶縁を心配する必要性をなくすことである。
【0010】
【課題を解決するための手段】
要するに本発明(請求項1)は、複数の端子金具を絶縁体からなる本体に整列状態で固定してなり夫々の前記端子金具に対してねじを用いて導電線を接続するように構成された端子台において、前記端子金具との間に前記導電線を挾むことができるように前記ねじに取り付けられた導電線押え金具と、前記端子金具の側方に配設され少なくとも前記ねじが前記端子金具に螺合していない状態においては前記導電線押え金具を前記端子金具から離間させる方向に付勢する爪部が前記導電線押え金具に係合するように構成された爪状弾性体とを備えたことを特徴とするものである。
【0011】また本発明(請求項2)は、複数の端子金具を絶縁体からなる本体に整列状態で固定してなり夫々の前記端子金具に対してねじを用いて導電線を接続するように構成された端子台において、前記端子金具との間に前記導電線を挾むことができるように前記ねじに取り付けられた導電線押え金具と、前記端子金具の側方に配設され前記ねじが前記端子金具に螺合していない状態においては前記導電線押え金具を前記端子金具から離間させる方向に付勢する爪部が前記導電線押え金具に係合し前記ねじが前記端子金具に螺合している状態においては前記爪部は前記導電線押え金具に係合せずその側面に単に当接することで付勢力が無効化されるように構成された爪状弾性体とを備えたことを特徴とするものである。
【0012】また本発明(請求項3)は、複数の端子金具を絶縁体からなる本体に整列状態で固定してなり夫々の前記端子金具に対してねじを用いて導電線を接続するように構成された端子台において、前記端子金具との間に前記導電線を挾むことができるように前記ねじに取り付けられた導電線押え金具と、前記端子金具の側方に配設されると共に前記ねじが前記端子金具に螺合していない状態においては前記導電線押え金具を前記端子金具から離間させる方向に付勢する爪部が前記導電線押え金具に係合し前記ねじが前記端子金具に螺合している状態においては前記爪部は前記導電線押え金具に係合せずその側面に単に当接することで付勢力が無効化されるように構成された合成樹脂製の爪状弾性体とを備えたことを特徴とするものである。
【0013】また本発明(請求項4)は、複数の端子金具を絶縁体からなる本体に整列状態で固定してなり夫々の前記端子金具に対してねじを用いて導電線を接続するように構成された端子台において、前記端子金具との間に前記導電線を挾むことができるように前記ねじに取り付けられた導電線押え金具と、前記端子金具の側方に配設されると共に前記ねじが前記端子金具に螺合していない状態においては前記導電線押え金具を前記端子金具から離間させる方向に付勢する爪部が前記導電線押え金具に係合し前記ねじが前記端子金具に螺合している状態においては前記爪部は前記導電線押え金具に係合せずその側面に単に当接することで付勢力が無効化されるように構成された金属製の爪状弾性体と、前記本体の取付け対象物との接触部にインサートされた合成樹脂製の絶縁部材とを備え、前記導電線接続時に前記端子金具と電気的に導通している前記爪状弾性体とプリント配線基板との電気絶縁性を確保するように構成したことを特徴とするものである。
【0014】
【発明の実施の形態】
以下本発明を図面に示す実施例に基いて説明する。本発明の第1実施例に係る端子台1は、図1から図15において、導電線押え金具2と、爪状弾性体3とを備え、複数の端子金具4を絶縁体からなる本体5に整列状態で固定してなり、夫々の端子金具4に対してねじ6を用いて導電線8を接続するように構成されている。
【0015】導電線押え金具2は、図1から図3、図5及び図6に示すように、端子金具4との間に導電線8を挾むことができるようにねじ6に取り付けられたものであって、例えば黄銅板を加工して水平部2aと垂直部2bとをL字形に一体的に形成したものである。
【0016】水平部2aは、端子金具4との間に導電線8を挾む部分であって、例えばばね座金9と共にねじ6が貫通して取り付けられ、例えばかしめ加工により該ねじ6が水平部2aから抜けないようになっている。
【0017】垂直部2bは、導電線押え金具2が本体5に対して円滑に上下動できるように平面に構成され、端子金具4が爪状弾性体3によって持ち上げられた際に端子金具4に引掛かるように、下端2cが内側に折り曲げられている。
【0018】垂直部2bの高さは、導電線押え金具2と端子金具4との間に導電線8を支障なく差し込むことができるように定められる。そして導電線押え金具2は、垂直部2bが本体5の後側面5aと平行に接するように取り付けられている。
【0019】爪状弾性体3は、図3及び図5から図8に示すように、端子金具4の側方に配設されると共に、ねじ6が端子金具4に螺合していない状態においては導電線押え金具2を端子金具4から離間させる方向に付勢する爪部3aが導電線押え金具2に係合し、ねじ6が端子金具4に螺合している状態においては爪部3aは導電線押え金具2に係合せずその側面(垂直部2b)に単に当接することで付勢力が無効化されるように構成された合成樹脂製のものである。
【0020】爪状弾性体3は、例えば本体5の後側面5aと面一になるように、該本体5の下側から矢印A方向に挿入されており、係合部3eが本体5の係合穴5dと係合することで抜止めがなされている。本体への取付け状態において、下端3bは本体5の底面5bと面一になっている。爪部3aは、根本3cから垂下すると共に、斜め下方に湾曲して形成されており、その周囲は、根本3cを除いて貫通穴3dとなっている。
【0021】爪部3aは、自由状態においては、図8及び図14に示すように、端子金具4側に突出しており、導電線押え金具2を上方に付勢できるようになっている。またねじ6が端子金具4に螺合しているときには、図15に示すように、導電線押え金具2の垂直部2bによって弾性変形させられて貫通穴3d内に押し込まれ、該垂直部2bに単に当接するようになっている。
【0022】端子金具4は、黄銅板等の導電性の良好な素材を加工して製作され、図4、図6及び図9に示すように、バーリング部分にめねじ4aが形成された水平部4bと、該水平部4bに連続し抜止め用の鋸歯部4eが夫々形成された左右の垂直部4c,4dとが形成され、更に垂直部4cには、図2から図7及び図9に示すように、本体5の底面穴5cから下方に突出するリード部4fが一体的に形成されている。
【0023】水平部4bの奥側の辺は、導電線押え金具2の垂直部2bを通すための切欠き4gが形成されている。
【0024】本体5は、例えばPBT(ポリブチレンテレフタレート)等の絶縁材料を成形して複数の端子金具4を直列に取付け可能に構成したものであって、図1から図6及び図11から図13に示すように、各隔壁5eには、端子金具4を圧入し易くするための溝部5fと、導電線押え金具2の上下動を案内するためのガイド部5gが形成されている。
【0025】本体5の後側面5aには、底面5b側から爪状弾性体3を挿入するための弾性体取付け溝5hが形成され、底面5bには、端子金具4のリード部4fを通して下方に突出させるための底面穴5cが形成されている。
【0026】このほか本体5には、端子金具4の取付け高さを定める台座部5が形成され、構造上肉厚になってしまう部分には、肉抜き穴5jが形成されている。
【0027】本発明の第2実施例に係る端子台12は、図16から図19において、金属製(金属としては銅、黄銅、ベリリウム銅、ステンレス鋼等が用いられる。)の爪状弾性体13と、絶縁部材14とを備え、複数の端子金具4を絶縁体からなる本体5に整列状態で固定してなり、夫々の端子金具4に対しねじ6を用いて導電線8を接続するように構成されている。
【0028】爪状弾性体13は、端子金具4の側方に配設されると共に、ねじ6が端子金具4に螺合していない状態においては導電線押え金具2を端子金具4から離間させる方向に付勢する爪部13aが導電線押え金具2に係合し、ねじ6が端子金具4に螺合している状態においては爪部13aは導電線押え金具2に係合せずその側面(垂直部2b)に単に当接することで付勢力が無効化されるように構成されたものであって、金属製であるために薄く形成され、かつ大きな耐久性及び導電性を有している。
【0029】爪状弾性体13は、本体5の後側面5aの弾性体取付け溝5hに下側から挿入されており、後側に突出した係合部13eが本体5の係合穴5dと係合することで抜止めがされている。下端13bには、絶縁部材14が一体成形によりインサートされて固着されている。爪部13aは、根本13cから垂下すると共に、斜め下方に湾曲して形成されており、その周囲は、根本13cを除いて貫通穴13dとなっている。
【0030】爪部13aは、自由状態においては、図16及び図18に示すように、端子金具4側に突出しており、導電線押え金具2を上方に付勢できるようになっている。またねじ6が端子金具4に螺合しているときには、図19に示すように、導電線押え金具2の垂直部2bによって弾性変形させられて貫通穴13d内に引込み、該垂直部2bに単に当接するようになっている。
【0031】絶縁部材14は、図17から図19に示すように、本体5の取付け対象物(図示せず)との接触部15にインサートされた合成樹脂製のものであって、爪状弾性体13とプリント配線基板等との間を絶縁するために用いられるものである。
【0032】この第2実施例では、絶縁部材14の溝14aに爪状弾性体13の下端13bが差し込まれ、爪状弾性体13の下端13bに取り付けられた状態で本体5にインサートされ、本体5の底面5bと面一となって、爪状弾性体13が全く露出しないようになっている。
【0033】他の部分については、第1実施例と同様であるので、同一の部分には図面に同一の符号を付して、その説明を省略する。
【0034】本発明は、上記のように構成されており、以下その作用について説明する。本発明の第1実施例に係る端子台1の作用について説明すると、図15に示すように、ねじ6が端子金具4のめねじ4aに最後まで締め込まれているときには、導電線押え金具2の水平部2aは端子金具4の水平部4bに当接し、垂直部2bは爪状弾性体3の爪部3aを貫通穴3d内に押し込めている。
【0035】この状態では、爪部3aは単に垂直部2bに当接しているだけであり、導電線押え金具2をアップさせるための付勢力は無効化されている。
このため、ねじ6の締付け状態においては、ねじ6を弛めようとする余計な力が爪状弾性体13から押え金具2に作用することは全くない。
【0036】ここで図14に示すように、ねじ6を弛めて行くと、やがて螺合していためねじ4aから外れる。ちょうどこのときに、爪状弾性体3の爪部3aがばね力によって導電線押え金具2の下端2cの下に入り込み、該導電線押え金具2、ねじ6及びばね座金9を持ち上げて行く。導電線押え金具2の下端2は折り曲げられているので、導電線押え金具2は端子金具4の水平部4aに当接したところで停止する。これがねじアップ状態であり、爪状弾性体3によってこのアップ状態、即ち端子金具4からの導電線押え金具2の離間高さが維持される。このように、爪状弾性体3の付勢力は、その付勢力が必要となったとき、即ちねじ6の螺合が外れて導電線押え金具2の支えがなくなってしまったときにのみ発揮される。
【0037】なお本体5には、ガイド部5gが形成されているので、導電線押え金具2は、ねじ6が端子金具4から外れていても手前側に傾くことがなく、端子金具4と平行な状態となっている。
【0038】次に、図7及び図10に示すように、プリント配線基板10にリード部4fを半田付けされた端子台1に、実際に導電線8を接続する場合の作用について説明する。導電線押え金具2がアップ状態にあると、該導電線押え金具2と端子金具4との間には、導電線8を差し込むために十分な隙間が確保されているため、導電線8を差し込むことは容易である。なお、図面においては、特に示していないが、圧着端子(図示せず)を使用することも可能である。
【0039】ドライバ11を用いて、爪状板ばね13の付勢力に抗してねじ6を下に押し、端子金具4に当たったところで回すことにより、ねじ6は端子金具4のめねじ4aと螺合し始める。このとき導電線押え金具2の下端2cは、爪状弾性体3の爪部3aを通り過ぎ、該爪部3aは貫通穴3d内に押し込まれて、導電線押え金具2の垂直部2bに単に当接した状態となるので、導電線押え金具2をアップさせるための付勢力は無効化される。
【0040】即ち、ねじ6が端子金具4に螺合している間は、爪状弾性体3の付勢力は無効化されるので、ねじ6を回す際の抵抗とはならず、またねじ6を完全に締め付けて導電線8を接続が完了した状態であっても、コイルばねを用いた従来例のように、例えばねじ6を弛めようとするような、本体5に対して悪影響を及ぼす余計な力が作用し続けることはない。
【0041】爪状弾性体3の材質は、合成樹脂等の絶縁体であるため、金属ばねを用いるよりも低コストで済み、また本体5の底面5bに露出していても、プリント配線基板10のパターン(図示せず)と導電線押え金具2は電気的に絶縁されている。これによってパターン設計を、端子台1との絶縁を心配することなく行うことができる。
【0042】端子台1においては、爪状弾性体3を端子金具4の側方に配置したので、コイルばねを用いた従来例よりも端子台1の高さを低くすることができ、軽量化、省スペース化が可能となる。例えばM4のねじ6を用いた端子台の場合、29mmから23mmへと、6mmも低くすることが可能である。
【0043】次に本発明の第2実施例に係る端子台12の作用について説明すると、爪状弾性体13による導電線押え金具2をアップさせること及びねじ6が端子金具4と螺合している間は爪状弾性体13の付勢力が無効化されること等、基本的な作用は本発明の第1実施例と同様である。
【0044】本実施例においては、爪状弾性体13を金属製としているので、合成樹脂を用いる場合よりもコスト高となるが、導電線8の接続及び取外しを頻繁に行う用途に用いる場合には、爪部13aに作用する応力の繰返し数が多くなることから、該繰返し曲げ応力に対する耐久性が高く、爪状弾性体13の爪部13aが折れるおそれがないので、長期にわたり安定した性能を確保することができる。
【0045】爪状弾性体13の下端13bには、絶縁部材14が固着され、本体5の底面5bには金属部分が全く露出しないので、導電線押え部材2とプリント配線基板等(図示せず)とは電気的に絶縁される。これによってプリント配線基板のパターン設計を、端子台12との絶縁を心配することなく行うことができる。
【0046】なお、上記実施例においては、爪状弾性体3,13を、主としてプリント配線基板用の端子台1,12に配設するものとして説明したが、これに限るものではなく、ねじのみの中継端子台、ラグ端子台、タブ端子台又はラッピング端子台等に用いることも可能である。
【0047】またねじ6及び導電線押え金具2は上下方向に動くものとしたが、これに限るものではなく、前後方向や斜め方向等に動く形式であってもよい。
【0048】
【発明の効果】
本発明は、上記のように複数の端子金具を絶縁体からなる本体に整列状態で固定してなり夫々の端子金具に対してねじを用いて導電線を接続するように構成された端子台において、端子金具との間に導電線を挾むことができるようにねじに取り付けられた導電線押え金具と、端子金具の側方に配設され少なくともねじが端子金具に螺合していない状態においては導電線押え金具を端子金具から離間させる方向に付勢する爪部が導電線押え金具に係合するように構成された爪状弾性体とを備たので、導電線固定用のねじを弛めて導電線押え金具を端子金具から離間させたときにその離間状態を維持する良好な導電線接続作業性を維持しながら、端子台の高さを、コイルばねを用いたねじアップ機構付きの従来品よりも大幅に低くすることができる効果があり、またこの結果省スペース化と軽量化を図ることができ、またコイルばねを廃止することで端子台のコストの低減を図ることができる効果が得られる。
【0049】また上記構成において、ねじが端子金具に螺合していない状態においては導電線押え金具を端子金具から離間させる方向に付勢する爪部が導電線押え金具に係合し、ねじが端子金具に螺合している状態においては爪部は導電線押え金具に係合せずその側面に単に当接することで付勢力が無効化されるように構成された爪状弾性体を備えたので、付勢力が必要なときだけ導電線押え金具に該付勢力が作用し、ねじを回す際には余計な抵抗力が作用しないという効果があると共に、導電線を接続して使用状態におかれた端子台内でねじを弛めようとする余計な力が作用し続けることがないという優れた効果がある。
【0050】更には、上記構成において、爪状弾性体を合成樹脂製のものとしたので、取付け対象物であるプリント配線基板の配線パターンの設計等を、端子台との電気絶縁を心配することなく行うことができるという効果がある。
【0051】また上記構成において、金属製の爪状弾性体を用い、本体の取付け対象物との接触部に合成樹脂製の絶縁部材をインサートしたので、爪状弾性体の耐久性を向上させることができると共に、導電線接続時に端子金具と電気的に導通する導電線押え金具及び爪状弾性体が、近接するプリント配線基板の配線パターン等と短絡しないため、プリント配線基板の配線パターンの設計等において端子台との電気絶縁を心配する必要性をなくすことができる効果がある。
【図面の簡単な説明】
【図1】図1から図15は、本発明の第1実施例に係り、図1は端子台の斜視図である。
【図2】端子台の部分縦断面正面図である。
【図3】端子台の縦断面図である。
【図4】端子金具が取り付けられた本体の部分破断斜視図である。
【図5】端子金具に導電線押え金具及びねじを取り付け、爪状弾性体を挿入する状態を示す部分破断斜視図である。
【図6】本体の一部を破断した端子台の分解斜視図である。
【図7】プリント配線基板に半田付けされた端子台において、爪状弾性体によってアップ状態の導電線押え金具と端子金具との間に導電線を差し込み、ドライバによりねじを回して導電線押え金具を締め付けようとしている状態を示す部分破断斜視図である。
【図8】爪状弾性体の斜視図である。
【図9】端子金具の斜視図である。
【図10】プリント配線基板に半田付けされた端子台において、爪状弾性体によってアップ状態の導電線押え金具と端子金具との間に導電線を差し込み、ドライバによりねじを回して導電線押え金具を締め付けようとしている状態を示す部分破断斜視図である。
【図11】本体の部分縦断面平面図である。
【図12】本体の部分縦断面正面図である。
【図13】本体の縦断面図である。
【図14】ねじが端子金具から外され、爪状弾性体によってアップ状態となった端子台の縦断面図である。
【図15】ねじが最後まで締め付けられ、ねじと共に下降した導電線押え金具の垂直部によって、爪状弾性部材の爪部が貫通穴内に押し込まれ、単に垂直部に当接している状態を示す端子台の縦断面図である。
【図16】図16から図19は、本発明の第2実施例に係り、図16は爪状弾性体(金属部分のみ)の斜視図である。
【図17】絶縁部材の斜視図である。
【図18】絶縁部材が固着された爪状弾性体の縦断面図である。
【図19】ねじが最後まで締め付けられ、ねじと共に下降した導電線押え金具の垂直部によって、爪状弾性部材の爪部が貫通穴内に押し込まれ、単に垂直部に当接している状態を示す端子台の縦断面図である。
【符号の説明】
1  端子台
2  導電線押え金具
3  爪状弾性体
3a 爪部
4  端子金具
5  本体
6  ねじ
12  端子台
13  爪状弾性体
13a 爪部
14  絶縁部材
[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a terminal block having a so-called "screw-up mechanism" in which a conductive wire presser bracket is largely raised by spring force by loosening a screw so that a separation height from the terminal bracket is maintained in that state. In particular, by using a claw-like elastic body arranged on the side of the conductive wire press fitting in place of the conventional coil spring for separating the conductive wire press fitting, the claw-like elastic body causes the separating action to be performed. Loosen the wire fixing screw and separate the conductive wire retainer from the terminal fitting.Maintain the separated state and improve the workability of the conductive wire connection and the insulation between the terminal board and the printed wiring board to which the terminal block is attached. The present invention relates to a terminal block whose height can be made significantly lower than that of a conventional product while maintaining the same as before, and which can reduce costs.
[0002]
[Prior art]
Terminal blocks are generally and widely used as input / output contacts for printed wiring boards, power supply units, switchboards, and the like, and the types thereof vary greatly depending on differences in the number of terminals, shapes, connection forms of conductors, and the like.
[0003] As a kind of the terminal block, there is generally provided a terminal block having a so-called screw-up mechanism as disclosed in Japanese Patent Application No. 9-35780. In this screw-up mechanism, the spring force of a coil spring disposed below the screw is applied to the conductive wire press fitting clamped on the screw, and the conductive wire press fitting is configured such that the screw is in contact with the terminal fitting. During the engagement, it moves up and down with the screw, and when it is no longer screwed up, it is lifted up by the coil spring so as to be separated from the terminal fitting and to maintain the separation height, thereby facilitating insertion of the conductive wire. Thus, the work of connecting the conductive wires to the terminal block is facilitated.
However, in a conventional terminal block with a screw-up mechanism, the biasing force of the coil spring acts on the conductive wire holding bracket until the screw is screwed into the terminal fitting and biasing by the coil spring is unnecessary. Therefore, when the conductive wire is connected and put in a used state, there is a problem that an extra force for loosening the screw continues to act on the main body and the like.
[0005] In addition, there is no other method except for disposing the coil spring below the screw, that is, below the conductive wire holder to be lifted. Therefore, only the height of the coil spring at the time of compression is required for the terminal block. As a result, not only does the overall height increase, resulting in an increase in weight, but also there is a problem in that it is very disadvantageous in mounting on a printed wiring board and space saving is hindered.
[0006]
[Problems to be solved by the invention]
The present invention has been made in order to eliminate the above-mentioned disadvantages of the prior art, and an object of the present invention is to fix a plurality of terminal fittings to a main body made of an insulator in an aligned state, and to provide each terminal fitting. A terminal block configured to connect a conductive wire to the terminal block using a screw, a conductive wire press fitting mounted on the screw so that the conductive wire can be sandwiched between the terminal block and the terminal block, and a terminal fitting. In the state where at least the screw is not screwed into the terminal fitting, the claw portion biasing in a direction to separate the conductive wire holding fixture from the terminal fitting is engaged with the conductive wire holding fixture. With the claw-shaped elastic body provided, when the conductive wire fixing screw is loosened and the conductive wire holding metal is separated from the terminal metal, the separated state is maintained. While the height of the terminal block , Which is significantly lower than conventional products with a screw-up mechanism using a coil spring. This also saves space and weight, and eliminates the coil spring to reduce the cost of the terminal block. That is.
Another object of the present invention is that, in the above configuration, when the screw is not screwed into the terminal fitting, the claw portion for urging the conductive wire holding fixture in a direction to separate the conductive wire holding fixture from the terminal fitting is engaged with the conductive wire holding fixture. A claw-like elastic body is configured such that when the joining screw is screwed into the terminal fitting, the claw does not engage with the conductive wire holding fixture but simply abuts against the side surface thereof so that the biasing force is nullified. By providing the urging force only when urging force is required, the urging force acts on the conductive wire holding bracket, and when turning the screw, no extra resistance force is applied, and the conductive wire is connected and used. The purpose of the present invention is to prevent the excessive force for loosening the screw in the terminal block placed on the terminal block from continuing to act.
[0008] Still another object of the present invention is to provide, in the above structure, a claw-like elastic body made of a synthetic resin, so that the design of a wiring pattern of a printed wiring board to be mounted can be electrically insulated from a terminal block. Is to be able to do without worry.
Another object of the present invention is to use a metal claw-like elastic body and insert a synthetic resin insulating member into a contact portion of the main body with an object to be mounted in the above-described configuration, thereby forming the claw-like elastic body. In addition to improving the durability, the conductive wire press fitting and the claw-like elastic body that are electrically connected to the terminal fitting when the conductive wire is connected are not short-circuited to the wiring pattern of the adjacent printed wiring board, and the printed wiring board is An object of the present invention is to eliminate the need to worry about electrical insulation from a terminal block when designing a wiring pattern.
[0010]
[Means for Solving the Problems]
In short, the present invention (Claim 1) is configured such that a plurality of terminal fittings are fixed to a main body made of an insulator in an aligned state, and a conductive wire is connected to each of the terminal fittings using screws. In the terminal block, a conductive wire retainer attached to the screw so that the conductive wire can be sandwiched between the terminal and the terminal, and at least the screw provided on a side of the terminal and having the terminal attached thereto. In a state in which the metal wire is not screwed to the metal fitting, a claw that urges the conductive wire holding metal in a direction to separate the conductive wire holding metal from the terminal fitting is configured to engage with the conductive wire holding metal. It is characterized by having.
According to the present invention (claim 2), a plurality of terminal fittings are fixed to a main body made of an insulator in an aligned state, and a conductive wire is connected to each of the terminal fittings using screws. In the terminal block having the above configuration, a conductive wire holding bracket attached to the screw so that the conductive wire can be sandwiched between the terminal bracket and the terminal fitting, and the screw disposed on a side of the terminal fitting are provided. When not screwed to the terminal fitting, a claw for urging the conductive wire holding fixture in a direction to separate the conductive wire holding fixture from the terminal fitting is engaged with the conductive wire holding fixture, and the screw is screwed to the terminal fitting. In this state, the claw portion is provided with a claw-shaped elastic body configured to invalidate the urging force by simply abutting against a side surface thereof without engaging with the conductive wire holding member. It is assumed that.
Further, according to the present invention (claim 3), a plurality of terminal fittings are fixed to a body made of an insulator in an aligned state, and a conductive wire is connected to each of the terminal fittings using a screw. In the configured terminal block, a conductive wire presser fitting attached to the screw so that the conductive wire can be sandwiched between the terminal fitting and a terminal fitting, the conductive wire presser fitting being disposed on a side of the terminal fitting, In a state where the screw is not screwed to the terminal fitting, a claw for urging the conductive wire holding fixture in a direction to separate the conductive wire holding fixture from the terminal fitting is engaged with the conductive wire holding fitting, and the screw is attached to the terminal fitting. In a screwed state, the claw portion does not engage with the conductive wire holding member, and a claw-like elastic body made of a synthetic resin configured so that the urging force is invalidated by simply abutting against the side surface thereof. It is characterized by having .
According to the present invention (claim 4), a plurality of terminal fittings are fixed to a body made of an insulator in an aligned state, and a conductive wire is connected to each of the terminal fittings using screws. In the configured terminal block, a conductive wire presser fitting attached to the screw so that the conductive wire can be sandwiched between the terminal fitting and a terminal fitting, the conductive wire presser fitting being disposed on a side of the terminal fitting, In a state where the screw is not screwed to the terminal fitting, a claw for urging the conductive wire holding fixture in a direction to separate the conductive wire holding fixture from the terminal fitting is engaged with the conductive wire holding fitting, and the screw is attached to the terminal fitting. In the screwed state, the claw portion does not engage with the conductive wire holding member, and a metal claw-like elastic body configured to nullify the biasing force by simply abutting against the side surface thereof. At the contact part of the main body with the mounting object And an insulating member made of a synthetic resin that has been inserted, and configured to ensure electrical insulation between the claw-shaped elastic body and the printed wiring board that are electrically connected to the terminal fitting when the conductive wire is connected. It is characterized by the following.
[0014]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, the present invention will be described based on embodiments shown in the drawings. 1 to 15, a terminal block 1 according to a first embodiment of the present invention includes a conductive wire press fitting 2 and a claw-shaped elastic body 3, and a plurality of terminal fittings 4 are attached to a main body 5 made of an insulator. The conductive wires 8 are fixed in an aligned state and connected to the respective terminal fittings 4 using screws 6.
As shown in FIGS. 1 to 3, 5 and 6, the conductive wire press fitting 2 is attached to the screw 6 so that the conductive wire 8 can be sandwiched between the metal fitting 2 and the terminal fitting 4. For example, a horizontal portion 2a and a vertical portion 2b are integrally formed in an L shape by processing a brass plate.
The horizontal portion 2a is a portion where the conductive wire 8 is sandwiched between the horizontal portion 2a and the terminal fitting 4. For example, a screw 6 is attached to the horizontal portion 2a together with a spring washer 9, and the horizontal portion 2a is formed by caulking. 2a.
The vertical portion 2b is formed to be flat so that the conductive wire holding member 2 can move up and down smoothly with respect to the main body 5. When the terminal member 4 is lifted by the claw-like elastic member 3, the vertical portion 2b is attached to the vertical portion 2b. The lower end 2c is bent inward so as to be hooked.
The height of the vertical portion 2b is determined so that the conductive wire 8 can be inserted between the conductive wire press fitting 2 and the terminal fitting 4 without any trouble. The conductive wire holding member 2 is attached such that the vertical portion 2b is in contact with the rear side surface 5a of the main body 5 in parallel.
As shown in FIGS. 3 and 5 to 8, the claw-shaped elastic body 3 is disposed on the side of the terminal fitting 4, and is in a state where the screw 6 is not screwed to the terminal fitting 4. In the state where the claw 3a for urging the conductive wire press fitting 2 in the direction to separate from the terminal fitting 4 is engaged with the conductive wire press fitting 2 and the screw 6 is screwed into the terminal fitting 4, the claw 3a is used. Is made of a synthetic resin that is configured so that the urging force is nullified by simply abutting on the side surface (vertical portion 2b) without engaging with the conductive wire holding member 2.
The claw-shaped elastic body 3 is inserted from the lower side of the main body 5 in the direction of arrow A so as to be flush with the rear side surface 5a of the main body 5, for example. The removal is prevented by engaging with the mating hole 5d. In the state of attachment to the main body, the lower end 3b is flush with the bottom surface 5b of the main body 5. The claw portion 3a hangs down from the root 3c and is formed to be curved diagonally downward, and its periphery is a through hole 3d except for the root 3c.
In the free state, the claw portion 3a protrudes toward the terminal fitting 4, as shown in FIGS. 8 and 14, and can urge the conductive wire holding fitting 2 upward. Also, when the screw 6 is screwed into the terminal fitting 4, as shown in FIG. 15, the conductive wire pressing fitting 2 is elastically deformed by the vertical portion 2b and is pushed into the through hole 3d, and is inserted into the vertical portion 2b. It simply comes into contact.
The terminal fitting 4 is manufactured by processing a material having good conductivity such as a brass plate or the like, and as shown in FIGS. 4, 6 and 9, a horizontal portion having a female screw 4a formed in a burring portion. 4b and left and right vertical portions 4c and 4d, which are continuous with the horizontal portion 4b and have sawtooth portions 4e for retaining, respectively. The vertical portion 4c further includes a vertical portion 4c as shown in FIGS. As shown, a lead portion 4f projecting downward from the bottom surface hole 5c of the main body 5 is integrally formed.
A notch 4g for passing the vertical portion 2b of the conductive wire holding member 2 is formed on the back side of the horizontal portion 4b.
The main body 5 is formed by molding an insulating material such as PBT (polybutylene terephthalate) so that a plurality of terminal fittings 4 can be attached in series. FIGS. 1 to 6 and FIGS. As shown in FIG. 13, each partition 5e is formed with a groove 5f for facilitating the press-fitting of the terminal fitting 4 and a guide 5g for guiding the conductive wire press fitting 2 up and down.
An elastic body mounting groove 5h for inserting the claw-like elastic body 3 from the bottom surface 5b side is formed on the rear side surface 5a of the main body 5, and the bottom surface 5b extends downward through the lead portion 4f of the terminal fitting 4. A bottom hole 5c for projecting is formed.
In addition, a pedestal portion 5 for determining the mounting height of the terminal fitting 4 is formed in the main body 5, and a lightening hole 5j is formed in a portion where the structure is thick.
The terminal block 12 according to the second embodiment of the present invention is shown in FIG. 16 to FIG. 19, and is formed of a metal (copper, brass, beryllium copper, stainless steel, or the like is used as a metal). 13 and an insulating member 14. A plurality of terminal fittings 4 are fixed to the body 5 made of an insulator in an aligned state, and the conductive wires 8 are connected to the respective terminal fittings 4 using screws 6. Is configured.
The claw-shaped elastic body 13 is disposed on the side of the terminal fitting 4 and separates the conductive wire holding fitting 2 from the terminal fitting 4 when the screw 6 is not screwed into the terminal fitting 4. In the state where the claw portion 13a urged in the direction is engaged with the conductive wire press fitting 2 and the screw 6 is screwed into the terminal fitting 4, the claw portion 13a does not engage with the conductive wire press fitting 2 and its side surface ( The biasing force is invalidated by simply abutting on the vertical portion 2b), and is made thin because it is made of metal, and has great durability and conductivity.
The claw-shaped elastic body 13 is inserted from below into the elastic body mounting groove 5h on the rear side surface 5a of the main body 5, and the engaging portion 13e projecting rearward is engaged with the engaging hole 5d of the main body 5. It is stopped by matching. An insulating member 14 is inserted and fixed to the lower end 13b by integral molding. The claw portion 13a is formed so as to hang down from the root 13c and be curved obliquely downward, and the periphery thereof is a through hole 13d except for the root 13c.
In the free state, the claw portion 13a protrudes toward the terminal fitting 4 as shown in FIGS. 16 and 18, and can urge the conductive wire holding fitting 2 upward. When the screw 6 is screwed into the terminal fitting 4, as shown in FIG. 19, it is elastically deformed by the vertical portion 2 b of the conductive wire holding fixture 2, pulled into the through hole 13 d, and simply inserted into the vertical portion 2 b. It comes into contact.
As shown in FIGS. 17 to 19, the insulating member 14 is made of a synthetic resin inserted into a contact portion 15 of the main body 5 with an object to be mounted (not shown). It is used to insulate between the body 13 and a printed wiring board or the like.
In the second embodiment, the lower end 13b of the claw-shaped elastic body 13 is inserted into the groove 14a of the insulating member 14, and is inserted into the main body 5 while being attached to the lower end 13b of the claw-shaped elastic body 13. 5, the claw-like elastic body 13 is not exposed at all.
Since the other parts are the same as those of the first embodiment, the same parts are denoted by the same reference numerals in the drawings, and description thereof will be omitted.
The present invention is configured as described above, and its operation will be described below. The operation of the terminal block 1 according to the first embodiment of the present invention will be described. As shown in FIG. 15, when the screw 6 is completely screwed into the female screw 4a of the terminal fitting 4, the conductive wire holding fitting 2 The horizontal portion 2a contacts the horizontal portion 4b of the terminal fitting 4, and the vertical portion 2b pushes the claw portion 3a of the claw-shaped elastic body 3 into the through hole 3d.
In this state, the claw portion 3a is merely in contact with the vertical portion 2b, and the urging force for raising the conductive wire holding member 2 is invalidated.
Therefore, in the tightened state of the screw 6, no extra force for loosening the screw 6 acts on the presser fitting 2 from the claw-like elastic body 13 at all.
Here, as shown in FIG. 14, when the screw 6 is loosened, the screw 6 is eventually screwed off and comes off from the screw 4a. At this time, the claw portion 3a of the claw-shaped elastic body 3 enters under the lower end 2c of the conductive wire press fitting 2 by a spring force, and lifts up the conductive wire press fitting 2, the screw 6, and the spring washer 9. Since the lower end 2 of the conductive wire press fitting 2 is bent, the conductive wire press fitting 2 stops when it comes into contact with the horizontal portion 4 a of the terminal fitting 4. This is the screw-up state, and the claw-like elastic body 3 maintains the screw-up state, that is, the separation height of the conductive wire pressing fitting 2 from the terminal fitting 4. As described above, the urging force of the claw-shaped elastic body 3 is exerted only when the urging force is required, that is, when the screw 6 is disengaged and the support of the conductive wire holding member 2 is lost. You.
The guide 5g is formed on the main body 5, so that even if the screw 6 is disengaged from the terminal fitting 4, the conductive wire holding fitting 2 does not incline toward the front side and is parallel to the terminal fitting 4. It is in a state.
Next, as shown in FIGS. 7 and 10, the operation when the conductive wire 8 is actually connected to the terminal block 1 in which the lead portion 4f is soldered to the printed wiring board 10 will be described. When the conductive wire press fitting 2 is in the up state, a sufficient gap is provided between the conductive wire press fitting 2 and the terminal fitting 4 to insert the conductive wire 8, and thus the conductive wire 8 is inserted. It is easy. Although not particularly shown in the drawings, a crimp terminal (not shown) can be used.
Using a screwdriver 11, the screw 6 is pressed downward against the urging force of the claw-shaped leaf spring 13 and turned when it hits the terminal fitting 4, so that the screw 6 is connected to the female screw 4 a of the terminal fitting 4. Start screwing. At this time, the lower end 2c of the conductive wire holding member 2 passes through the claw portion 3a of the claw-shaped elastic body 3, and the claw portion 3a is pushed into the through hole 3d, and simply contacts the vertical portion 2b of the conductive wire holding metal member 2. Since it is in contact, the urging force for raising the conductive wire press fitting 2 is invalidated.
That is, while the screw 6 is screwed into the terminal fitting 4, the urging force of the claw-like elastic body 3 is invalidated, so that there is no resistance when the screw 6 is turned. Is completely tightened and the connection of the conductive wire 8 is completed, as in the conventional example using a coil spring, which has an adverse effect on the body 5 such as trying to loosen the screw 6. No extra force is applied.
Since the material of the claw-like elastic body 3 is an insulator such as a synthetic resin, the cost is lower than using a metal spring, and even if the claw-like elastic body 3 is exposed on the bottom surface 5b of the main body 5, (Not shown) and the conductive wire press fitting 2 are electrically insulated. Thereby, pattern design can be performed without worrying about insulation with the terminal block 1.
In the terminal block 1, the claw-shaped elastic body 3 is arranged on the side of the terminal fitting 4, so that the height of the terminal block 1 can be reduced as compared with the conventional example using a coil spring, and the weight is reduced. , Space can be saved. For example, in the case of a terminal block using M4 screws 6, the distance can be reduced by 6 mm from 29 mm to 23 mm.
Next, the operation of the terminal block 12 according to the second embodiment of the present invention will be described. The conductive wire holding member 2 is raised by the claw-like elastic body 13 and the screw 6 is screwed into the terminal member 4. The basic operation is the same as that of the first embodiment of the present invention, for example, the urging force of the claw-like elastic body 13 is invalidated during the operation.
In this embodiment, since the claw-shaped elastic body 13 is made of metal, the cost is higher than in the case of using a synthetic resin. However, in the case of using the conductive wire 8 for frequent connection and disconnection, Since the number of repetitions of the stress acting on the claw portion 13a increases, the durability against the repeated bending stress is high, and there is no possibility that the claw portion 13a of the claw-like elastic body 13 is broken. Can be secured.
An insulating member 14 is fixed to the lower end 13b of the claw-like elastic body 13, and since no metal portion is exposed on the bottom surface 5b of the main body 5, the conductive wire pressing member 2 and a printed wiring board or the like (not shown) ) Is electrically insulated. Thus, the pattern design of the printed wiring board can be performed without worrying about insulation with the terminal block 12.
In the above-described embodiment, the claw-like elastic members 3 and 13 are mainly provided on the terminal blocks 1 and 12 for the printed wiring board. However, the present invention is not limited to this. , A lug terminal block, a tab terminal block, a wrapping terminal block, or the like.
Although the screw 6 and the conductive wire holder 2 move vertically, the present invention is not limited to this, and the screw 6 and the conductive wire holder 2 may move in the front-rear direction or the oblique direction.
[0048]
【The invention's effect】
The present invention provides a terminal block in which a plurality of terminal fittings are fixed in an aligned manner to a main body made of an insulator as described above, and a conductive wire is connected to each terminal fitting by using a screw. A conductive wire press fitting attached to a screw so that a conductive wire can be sandwiched between the terminal fitting, and a conductive wire press fitting provided at a side of the terminal fitting and at least a screw not screwed to the terminal fitting. Is provided with a claw-shaped elastic body configured so that a claw portion for urging the conductive wire retainer away from the terminal fitting engages with the conductive wire retainer, so that the screw for fixing the conductive wire is loosened. The height of the terminal block is increased with a screw-up mechanism using a coil spring, while maintaining good conductive wire connection workability when the conductive wire holding bracket is separated from the terminal fitting. Can be significantly lower than conventional products It is effective, and this result can be achieved space saving and weight reduction, also effect is obtained that it is possible to reduce the terminal block costs by abolishing the coil spring.
Further, in the above configuration, when the screw is not screwed into the terminal fitting, the claw for urging the conductive wire holding fixture in the direction of separating the conductive wire holding fixture from the terminal fitting is engaged with the conductive wire holding fixture, and the screw is engaged. Since the claw portion is provided with a claw-like elastic body which is configured so that the biasing force is invalidated by simply abutting against the side surface thereof without engaging with the conductive wire holding member in a state of being screwed into the terminal fitting. When the urging force is required, the urging force acts on the conductive wire holding bracket, and when turning the screw, there is an effect that no extra resistance force acts. There is an excellent effect that unnecessary force for loosening the screw in the terminal block does not continue to act.
Further, in the above configuration, since the claw-like elastic body is made of synthetic resin, the design of the wiring pattern of the printed wiring board to be attached, etc., may be a concern for electrical insulation with the terminal block. There is an effect that it can be performed without.
Further, in the above configuration, since the metal claw-like elastic body is used and the synthetic resin insulating member is inserted into the contact portion of the main body with the object to be mounted, the durability of the claw-like elastic body is improved. In addition, the conductive wire presser and the claw-like elastic body that are electrically connected to the terminal fitting when the conductive wire is connected do not short-circuit with the wiring pattern of the adjacent printed wiring board. Has the effect of eliminating the need to worry about electrical insulation with the terminal block.
[Brief description of the drawings]
FIG. 1 to FIG. 15 relate to a first embodiment of the present invention, and FIG. 1 is a perspective view of a terminal block.
FIG. 2 is a partial longitudinal sectional front view of a terminal block.
FIG. 3 is a longitudinal sectional view of a terminal block.
FIG. 4 is a partially cutaway perspective view of a main body to which terminal fittings are attached.
FIG. 5 is a partially cutaway perspective view showing a state in which a conductive wire press fitting and a screw are attached to a terminal fitting and a claw-like elastic body is inserted.
FIG. 6 is an exploded perspective view of a terminal block in which a part of a main body is cut away.
FIG. 7 is a perspective view of a terminal block soldered to a printed circuit board, in which a conductive wire is inserted between a conductive wire holding metal member and a terminal metal member in an up state by a claw-shaped elastic body, and a screw is turned by a screwdriver to turn the conductive wire holding metal member. FIG. 4 is a partially cutaway perspective view showing a state in which is to be tightened.
FIG. 8 is a perspective view of a claw-shaped elastic body.
FIG. 9 is a perspective view of a terminal fitting.
FIG. 10 is a perspective view of a terminal block soldered to a printed wiring board, in which a conductive wire is inserted between a conductive wire holding metal member and a terminal metal member in an up state by a claw-like elastic body, and a screw is turned by a screwdriver to turn the conductive wire holding metal member. FIG. 4 is a partially cutaway perspective view showing a state in which is to be tightened.
FIG. 11 is a partial vertical cross-sectional plan view of the main body.
FIG. 12 is a partial longitudinal sectional front view of the main body.
FIG. 13 is a longitudinal sectional view of the main body.
FIG. 14 is a vertical cross-sectional view of the terminal block in which a screw has been removed from a terminal fitting and has been brought up by a claw-like elastic body.
FIG. 15 is a terminal showing a state in which the claw portion of the claw-shaped elastic member is pushed into the through hole by the vertical portion of the conductive wire retainer that has been screwed down to the end and lowered together with the screw, and is simply in contact with the vertical portion. It is a longitudinal section of a stand.
FIGS. 16 to 19 relate to a second embodiment of the present invention, and FIG. 16 is a perspective view of a claw-like elastic body (only a metal portion).
FIG. 17 is a perspective view of an insulating member.
FIG. 18 is a longitudinal sectional view of a claw-like elastic body to which an insulating member is fixed.
FIG. 19 is a terminal showing a state in which the claw portion of the claw-shaped elastic member is pushed into the through hole by the vertical portion of the conductive wire presser fitting that has been screwed down to the end and lowered together with the screw, and is simply in contact with the vertical portion. It is a longitudinal section of a stand.
[Explanation of symbols]
REFERENCE SIGNS LIST 1 terminal block 2 conductive wire holder 3 claw-shaped elastic body 3 a claw 4 terminal fitting 5 body 6 screw 12 terminal block 13 claw-shaped elastic body 13 a claw 14 insulating member

Claims (4)

複数の端子金具を絶縁体からなる本体に整列状態で固定してなり夫々の前記端子金具に対してねじを用いて導電線を接続するように構成された端子台において、前記端子金具との間に前記導電線を挾むことができるように前記ねじに取り付けられた導電線押え金具と、前記端子金具の側方に配設され少なくとも前記ねじが前記端子金具に螺合していない状態においては前記導電線押え金具を前記端子金具から離間させる方向に付勢する爪部が前記導電線押え金具に係合するように構成された爪状弾性体とを備えたことを特徴とする端子台。In a terminal block in which a plurality of terminal fittings are fixed to a main body made of an insulator in an aligned state, and a conductive wire is connected to each of the terminal fittings using a screw, the terminal block is connected to the terminal fitting. A conductive wire press fitting attached to the screw so that the conductive wire can be sandwiched between the terminal fitting and a conductive wire press fitting provided at a side of the terminal fitting. A terminal block, comprising: a claw portion for urging the conductive wire holding member in a direction to separate the conductive wire holding member from the terminal metal member; and a claw-shaped elastic body configured to engage with the conductive wire holding metal member. 複数の端子金具を絶縁体からなる本体に整列状態で固定してなり夫々の前記端子金具に対してねじを用いて導電線を接続するように構成された端子台において、前記端子金具との間に前記導電線を挾むことができるように前記ねじに取り付けられた導電線押え金具と、前記端子金具の側方に配設され前記ねじが前記端子金具に螺合していない状態においては前記導電線押え金具を前記端子金具から離間させる方向に付勢する爪部が前記導電線押え金具に係合し前記ねじが前記端子金具に螺合している状態においては前記爪部は前記導電線押え金具に係合せずその側面に単に当接することで付勢力が無効化されるように構成された爪状弾性体とを備えたことを特徴とする端子台。In a terminal block in which a plurality of terminal fittings are fixed to a main body made of an insulator in an aligned state, and a conductive wire is connected to each of the terminal fittings using a screw, the terminal block is connected to the terminal fitting. And a conductive wire press fitting attached to the screw so that the conductive wire can be held between the terminal fitting and the conductive wire press fitting. In a state in which a claw for urging the conductive wire holding member in a direction to separate from the terminal fitting is engaged with the conductive wire holding member and the screw is screwed into the terminal fitting, the claw portion is the conductive wire. A terminal block comprising: a claw-like elastic body configured to invalidate an urging force by simply abutting on a side surface thereof without engaging with a holding metal. 複数の端子金具を絶縁体からなる本体に整列状態で固定してなり夫々の前記端子金具に対してねじを用いて導電線を接続するように構成された端子台において、前記端子金具との間に前記導電線を挾むことができるように前記ねじに取り付けられた導電線押え金具と、前記端子金具の側方に配設されると共に前記ねじが前記端子金具に螺合していない状態においては前記導電線押え金具を前記端子金具から離間させる方向に付勢する爪部が前記導電線押え金具に係合し前記ねじが前記端子金具に螺合している状態においては前記爪部は前記導電線押え金具に係合せずその側面に単に当接することで付勢力が無効化されるように構成された合成樹脂製の爪状弾性体とを備えたことを特徴とする端子台。In a terminal block in which a plurality of terminal fittings are fixed to a main body made of an insulator in an aligned state, and a conductive wire is connected to each of the terminal fittings using a screw, the terminal block is connected to the terminal fitting. A conductive wire press fitting attached to the screw so that the conductive wire can be sandwiched between the terminal fitting and the conductive wire holding bracket attached to the screw; and the screw is not screwed to the terminal fitting. In a state in which the claw portion for urging the conductive wire presser fitting in the direction to separate from the terminal fitting is engaged with the conductive wire presser fitting and the screw is screwed to the terminal fitting, the claw portion is A terminal block, comprising: a synthetic resin claw-like elastic body configured to negate the urging force by simply abutting against a side surface thereof without engaging with the conductive wire holding member. 複数の端子金具を絶縁体からなる本体に整列状態で固定してなり夫々の前記端子金具に対してねじを用いて導電線を接続するように構成された端子台において、前記端子金具との間に前記導電線を挾むことができるように前記ねじに取り付けられた導電線押え金具と、前記端子金具の側方に配設されると共に前記ねじが前記端子金具に螺合していない状態においては前記導電線押え金具を前記端子金具から離間させる方向に付勢する爪部が前記導電線押え金具に係合し前記ねじが前記端子金具に螺合している状態においては前記爪部は前記導電線押え金具に係合せずその側面に単に当接することで付勢力が無効化されるように構成された金属製の爪状弾性体と、前記本体の取付け対象物との接触部にインサートされた合成樹脂製の絶縁部材とを備え、前記導電線接続時に前記端子金具と電気的に導通している前記爪状弾性体とプリント配線基板との電気絶縁性を確保するように構成したことを特徴とする端子台。In a terminal block in which a plurality of terminal fittings are fixed to a main body made of an insulator in an aligned state, and a conductive wire is connected to each of the terminal fittings using a screw, the terminal block is connected to the terminal fitting. A conductive wire press fitting attached to the screw so that the conductive wire can be sandwiched between the terminal fitting and the conductive wire holding bracket attached to the screw; and the screw is not screwed to the terminal fitting. In a state in which the claw portion for urging the conductive wire presser fitting in the direction to separate from the terminal fitting is engaged with the conductive wire presser fitting and the screw is screwed to the terminal fitting, the claw portion is A metal claw-like elastic body configured so that the biasing force is invalidated by simply abutting against the side surface thereof without engaging with the conductive wire holding bracket, and an insert into a contact portion of the main body with an object to be mounted; Synthetic resin insulation member and Includes, terminal blocks, characterized by being configured so as to ensure electrical insulation between the said claw-like elastic body are metal terminal and electrically connected to the printed circuit board when the conductive wire connection.
JP2002251011A 2002-08-29 2002-08-29 Terminal stand Pending JP2004095211A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006338991A (en) * 2005-06-01 2006-12-14 Swallow Electric Co Ltd Terminal table and transformer with same
KR101736313B1 (en) * 2010-03-11 2017-05-16 니폰탄시 가부시키가이샤 Connecting structure for an aluminum electric conductor and a connector

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Publication number Priority date Publication date Assignee Title
JPS59224082A (en) * 1984-02-14 1984-12-15 和泉電気株式会社 Terminal connecting device
JPS60112267A (en) * 1983-11-21 1985-06-18 東洋技研株式会社 Terminal connecting device
JPH0668312U (en) * 1993-02-26 1994-09-22 松下電工株式会社 Terminal device
JPH0935780A (en) * 1995-07-13 1997-02-07 Toyo Giken Kk Terminal for connection
JP2001351701A (en) * 2000-06-07 2001-12-21 Yamatake Sangyo Systems Co Ltd Terminal box structure

Patent Citations (5)

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Publication number Priority date Publication date Assignee Title
JPS60112267A (en) * 1983-11-21 1985-06-18 東洋技研株式会社 Terminal connecting device
JPS59224082A (en) * 1984-02-14 1984-12-15 和泉電気株式会社 Terminal connecting device
JPH0668312U (en) * 1993-02-26 1994-09-22 松下電工株式会社 Terminal device
JPH0935780A (en) * 1995-07-13 1997-02-07 Toyo Giken Kk Terminal for connection
JP2001351701A (en) * 2000-06-07 2001-12-21 Yamatake Sangyo Systems Co Ltd Terminal box structure

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006338991A (en) * 2005-06-01 2006-12-14 Swallow Electric Co Ltd Terminal table and transformer with same
JP4584774B2 (en) * 2005-06-01 2010-11-24 スワロー電機株式会社 Terminal block and transformer equipped with this terminal block
KR101736313B1 (en) * 2010-03-11 2017-05-16 니폰탄시 가부시키가이샤 Connecting structure for an aluminum electric conductor and a connector

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