JP4205703B2

JP4205703B2 - Ground terminal block

Info

Publication number: JP4205703B2
Application number: JP2005221336A
Authority: JP
Inventors: 洋北野; 高司山崎
Original assignee: 不二電機工業株式会社
Priority date: 2005-07-29
Filing date: 2005-07-29
Publication date: 2009-01-07
Anticipated expiration: 2025-07-29
Also published as: JP2007035590A

Description

本発明は、例えば原子力発電所、火力発電所および変電所などの配電盤、制御盤および監視盤などに用いられ、例えば総合接地配線と各機器からの接地配線との配線中継および配線分岐するための接地端子台に関する。 The present invention is used, for example, in switchboards such as nuclear power plants, thermal power plants and substations, control panels, monitoring panels, etc., for example, for relaying and branching wiring between general ground wiring and ground wiring from each device. It relates to the ground terminal block.

従来、図５に示すように、この種の接地端子台１００としては、導体端子１０１の両端縁部分の両ねじ穴１０２間の中央部分に、接地レール１０３に差し込んで上下に金具にて挟み込むためのレール固定用のねじ穴１０４が設けられている。この導体端子１０１は前後に直角に断面コ字状に折り曲げられて逆Ｔ字状に形成されている。このレール固定用のねじ穴にねじ１０５を螺合させて、接地レール１０３の両側から突き出た鍔部分１０３ａを下方から係合するように、導体端子１０１の逆Ｔ字状の折り曲げ部先端面部分１０１ａとの間で上下に挟み込むための固定金具１０６が設けられている。この固定金具１０６は接地レール１０３の鍔部分１０３ａを下方から受けられるようにレール両側から内側に屈曲した形状をしている。この接地端子台１００は、ねじを締結して導体端子１０１を介して配線を連結する配線中継および分岐装置としてのねじアップ式の端子台に適用している。 Conventionally, as shown in FIG. 5, this type of ground terminal block 100 has a structure in which a center portion between both screw holes 102 at both end portions of the conductor terminal 101 is inserted into the ground rail 103 and sandwiched vertically by metal fittings. A screw hole 104 for fixing the rail is provided. The conductor terminal 101 is bent in a U-shaped cross section at right angles in the front-rear direction and formed in an inverted T-shape. A screw 105 is screwed into the rail fixing screw hole, and the tip portion of the inverted T-shaped bent portion of the conductor terminal 101 is engaged with the flange portion 103a protruding from both sides of the ground rail 103 from below. A fixing metal fitting 106 is provided to be sandwiched up and down with 101a. The fixing bracket 106 has a shape bent inward from both sides of the rail so that the flange portion 103a of the ground rail 103 can be received from below. The grounding terminal block 100 is applied to a screw-up type terminal block as a wiring relay and branching device that fastens screws and connects wirings via conductor terminals 101.

樹脂製のユニット１０７には、導体端子１０１および固定金具１０６が所定位置に収められてユニット部が構成され、その厚み方向に複数のユニット部が連結されている。この樹脂製のユニット１０７は、緑色と黄色が交互に用いられて、接地端子台１００として、電圧が印加される端子を接続するとショートするので、他の通常の端子台と色で区別されている。 In the resin unit 107, the conductor terminal 101 and the fixing metal fitting 106 are accommodated at predetermined positions to form a unit portion, and a plurality of unit portions are connected in the thickness direction. Since this resin unit 107 is alternately used in green and yellow, and is short-circuited when a terminal to which a voltage is applied is connected as the ground terminal block 100, it is distinguished from other normal terminal blocks by color. .

なお、従来の接地端子台の特許文献としては、特許文献１および特許文献２があるが、いずれも接地用の端子そのものが示されているだけで、上記図５のようなユニット式で複数配線が可能な端子台で接地レールを通して接地するものではない。このような従来のユニット式で複数配線が可能な端子台としては、接地端子台ではないが、特許文献３にねじアップ式端子台が開示されている。
特開２０００−３２４６０１号公報特開２００２−１８０２５８号公報特開２００１−５２７７６号公報 In addition, as patent documents of conventional ground terminal blocks, there are Patent Document 1 and Patent Document 2, but both of them show only the grounding terminal itself, and the unit type as shown in FIG. It is not a terminal block that can be grounded through a grounding rail. As such a conventional terminal block capable of a plurality of wirings, although not a ground terminal block, Patent Document 3 discloses a screw-up type terminal block.
JP 2000-324601 A JP 2002-180258 A JP 2001-52776 A

上記従来の接地端子台１００を接地レール１０３に固定するためには、折り曲げ部先端面部分１０１ａと固定金具１０６間に接地レール１０３の鍔部分１０３ａを挟み込んで中央部のねじ１０５を締め付けることにより、接地レール１０３の鍔部分１０３ａを、導体端子１０１の逆Ｔ字状の折り曲げ部先端面部分１０１ａと固定金具１０６とで上下から固定しなければならない。よって、この接地用の中央部のねじ１０５の締め付けを忘れた場合には、接地端子台１００の導電端子１０１が接地レール１０３に電気的に接続されず、接地不良が発生して、各機器の動作が不安定になるという問題が発生する。 In order to fix the conventional ground terminal block 100 to the ground rail 103, the flange portion 103a of the ground rail 103 is sandwiched between the bent portion front end surface portion 101a and the fixing bracket 106, and the center portion screw 105 is tightened. The flange portion 103a of the ground rail 103 must be fixed from above and below with the inverted T-shaped bent portion distal end surface portion 101a of the conductor terminal 101 and the fixture 106. Therefore, if the tightening of the screw 105 at the center for grounding is forgotten, the conductive terminal 101 of the ground terminal block 100 is not electrically connected to the ground rail 103 and a grounding failure occurs. The problem that operation becomes unstable occurs.

しかも、この接地端子台１００の輸送時には、導電端子１０１と固定金具１０６とを動かないようにかつ音が出ないように固定するために接地用の中央部のねじ１０５を予め締め付けた状態としている。このため、この接地端子台１００の取り付け時には、接地用の中央部のねじ１０５を一旦戻して（緩めて）から、接地レール１０３を挟んで締め付けなければならず、手間と作業工数がかかる。 Moreover, when the grounding terminal block 100 is transported, the grounding center screw 105 is tightened in advance in order to fix the conductive terminal 101 and the fixing fitting 106 so as not to move and to prevent sound. . For this reason, when the ground terminal block 100 is attached, the grounding center screw 105 must be temporarily returned (loosened) and then tightened with the ground rail 103 interposed therebetween, which takes time and labor.

さらに、折り曲げ部先端面部分１０１ａと固定金具１０６間に接地レール１０３の鍔部分１０３ａを通して中央部のねじ１０５を締め付けて、接地端子台１００を接地レール１０３に固定する構造であるため、中央部のねじ１０５の締め付けトルクが大きい場合はもちろんのこと、締め付けトルクが通常の場合であってもねじ１０５を締めすぎると接地レール１０３の鍔部分１０３ａが変形して、接地端子台１００の接地レール１０３への再取り付けが困難となる場合も発生する。また、ねじ１０５の締め付けトルクが小さ過ぎる場合には、接地端子台１００の接地レール１０３への固定が不完全であったり、経時的に電気的に不接触状態となることもあり得る。このように、接地レール１０３の鍔部分１０３ａの変形を抑えようとすると接地不良が経時的に発生する虞がある。 Further, since the center screw 105 is tightened through the flange portion 103a of the ground rail 103 between the front end surface portion 101a of the bent portion and the fixing bracket 106, the ground terminal block 100 is fixed to the ground rail 103. Needless to say, the tightening torque of the screw 105 is large, and even if the tightening torque is normal, if the screw 105 is tightened excessively, the flange portion 103a of the ground rail 103 is deformed and the ground terminal 103 of the ground terminal block 100 is moved to the ground rail 103. It may also occur when it becomes difficult to re-attach. Further, when the tightening torque of the screw 105 is too small, the ground terminal block 100 may be incompletely fixed to the ground rail 103 or may be in an electrically non-contact state with time. Thus, when it is going to suppress deformation | transformation of the collar part 103a of the grounding rail 103, there exists a possibility that a grounding failure may generate | occur | produce with time.

本発明は、上記従来の問題を解決するもので、接地レールへの固定に要する手間と作業工数を削減して、接地レールの鍔部分の変形を抑えつつ接地不良を防止できる接地端子台を提供することを目的とする。 The present invention solves the above-described conventional problems, and provides a ground terminal block that can reduce the labor and man-hours required for fixing to the ground rail and can prevent ground failure while suppressing deformation of the flange portion of the ground rail. The purpose is to do.

本発明の接地端子台は、長手方向両側に貫通穴が設けられた短冊状の導電端子と、該導電端子を保持する絶縁ユニットとを有する接地端子台において、該導電端子の下方位置で該導電端子の長手方向に互いにスライド自在に設置され、該貫通穴に対向してねじ穴が設けられ、接地レールの両側の鍔部分に係合可能とする係合部が設けられた二つの接地金具と、該二つの接地金具の各係合部に対して互いに内側に付勢するばねとを有し、該絶縁ユニットには、該二つの接地金具および該ばねが収容保持され、該ばねの付勢力により該各係合部が該接地レールに押圧可能とされており、そのことにより上記目的が達成される。
The ground terminal block of the present invention is a ground terminal block having a strip-shaped conductive terminal with through holes provided on both sides in the longitudinal direction and an insulating unit for holding the conductive terminal. Two grounding brackets that are slidably installed in the longitudinal direction of the terminal, are provided with screw holes facing the through-holes, and are provided with engaging portions that can be engaged with the flange portions on both sides of the grounding rail; A spring that urges each of the engagement portions of the two grounding metal members inwardly, and the two grounding metal members and the spring are accommodated and held in the insulating unit. Thus, the respective engaging portions can be pressed against the grounding rail, thereby achieving the above object.

また、好ましくは、本発明の接地端子台における導電端子は、配線時に、前記貫通穴を通して前記ねじ穴にねじが締結されて該二つの接地金具と一体的に固定されている。 Preferably, the conductive terminal in the ground terminal block of the present invention is fixed integrally with the two grounding brackets by screwing the threaded hole through the through hole during wiring.

さらに、好ましくは、本発明の接地端子台において、前記二つの接地金具はそれぞれ、前記絶縁ユニットの厚み方向に対して前後に直角に断面コ字状に折れ曲り、その折れ曲がった両先端板部分が該二つの接地金具に、前記接地レールの両側の鍔部分にそれぞれ係合可能とする前記各係合部がそれぞれ設けられ、前記ねじ穴が該断面コ字状の中央平面部分に設けられ、該平面部分からその半分の幅で延設された延設部が設けられ、該平面部分の幅部分の先端板部分が該延設部から断面Ｌ字状に、該断面コ字状部分の折れ曲り方向とは直交する方向に折れ曲がっており、該二つの接地金具を組合せて、該延設部から折れ曲がった先端板部分がそれぞれ対向配置され、該各先端板部分間に前記ばねが配置されている。
Further preferably, in the ground terminal block of the present invention, each of the two grounding metal parts is bent in a U-shaped cross section perpendicular to the thickness direction of the insulating unit in the front-rear direction, and both bent end plate portions are bent. The two grounding brackets are provided with the engaging portions that are respectively engageable with the flange portions on both sides of the grounding rail, and the screw holes are provided in a central plane portion having a U-shaped cross section. An extension portion is provided that extends from the plane portion with a half width thereof, and the front end plate portion of the width portion of the plane portion is bent from the extension portion into an L-shaped section, and the U-shaped section is bent. Are bent in a direction perpendicular to the direction, the two grounding metal fittings are combined, the tip plate portions bent from the extending portion are arranged to face each other, and the spring is arranged between the tip plate portions. .

さらに、好ましくは、本発明の接地端子台における係合部は、切り欠き部または段差部で構成されている。 Further, preferably, the engaging portion in the ground terminal block of the present invention is constituted by a notch portion or a step portion.

さらに、好ましくは、本発明の接地端子台において、前記二つの接地金具の各延設部にはそれぞれ、マイナス形状の先端部が挿入可能な長方形状の切り欠き部がその長手方向に直角な方向に互いに対向してそれぞれ設けられている。マイナス形状の先端部は、マイナスドライバの先端部の他に、マイナスドライバの先端部と同等な工具の先端部などがある。 Further preferably, in the ground terminal block according to the present invention, a rectangular cutout portion into which each of the extending portions of the two grounding fittings can be inserted with a negative tip is perpendicular to the longitudinal direction. Are provided opposite to each other. In addition to the tip of the minus driver, the tip of the minus shape includes a tip of a tool equivalent to the tip of the minus driver.

さらに、好ましくは、本発明の接地端子台における段差部には、前記接地レールの鍔部分に下方から当接可能に折り曲げられた折り曲げ部を有している。 Further preferably, the step portion in the ground terminal block of the present invention has a bent portion that is bent so as to be able to come into contact with the flange portion of the ground rail from below.

さらに、好ましくは、本発明の接地端子台における絶縁ユニットは、複数個その厚み方向に連結可能とされているかまたは、前記導電端子、前記二つの接地金具および前記ばねを内部に収容するように縦方向に二つに分割されて該厚み方向に互いに抱き合わせになった状態で、複数個その厚み方向に連結可能とされている。 Further preferably, a plurality of the insulating units in the ground terminal block of the present invention can be connected in the thickness direction, or the insulation units , the two grounding fittings, and the springs can be accommodated in the vertical direction so as to be accommodated therein. A plurality of pieces can be connected in the thickness direction in a state where they are divided into two in the direction and are joined together in the thickness direction.

さらに、好ましくは、本発明の接地端子台において、前記導電端子と前記二つの接地金具との間には所定の隙間が設けられており、ねじ締結時に、該二つの接地金具の係合部が前記接地レールの鍔部分とその下方から係合するように移動して、該接地レールの鍔部分を、前記ユニットの底面部分と該係合部とで挟み込んで固定する構成としている。 Further preferably, in the grounding terminal block of the present invention, a predetermined gap is provided between the conductive terminal and the two grounding brackets, and when the screws are fastened, the engaging portions of the two grounding brackets are It moves so that it may engage from the collar part of the said grounding rail from the downward direction, and it is set as the structure which pinches | interposes and fixes the collar part of this grounding rail between the bottom face part of the said unit and this engaging part.

さらに、好ましくは、本発明の接地端子台において、ねじアップ用の座金付ねじと、該座金付ねじの下端部が前記ねじ穴から離間する方向に、該座金付ねじに付勢力を付与するばねとを更に有し、該絶縁ユニットは、これらを収容して保持すると共に、前記導電端子に対して垂直方向に該ねじアップ用の座金付ねじを上下移動自在にガイドする絶縁部材を有している。 Further preferably, in the ground terminal block of the present invention, a screw with a washer for screwing up and a spring for applying a biasing force to the screw with the washer in a direction in which a lower end portion of the screw with the washer is separated from the screw hole The insulating unit includes an insulating member that accommodates and holds them, and that guides the screw with a washer for screw-up in a vertical direction with respect to the conductive terminal. Yes.

上記構成により、以下、本発明の作用を説明する。 With the above configuration, the operation of the present invention will be described below.

本発明においては、二つの接地金具の各係合部に対して互いに内側にばねで付勢することにより各係合部が接地レールに押圧可能とされている。 In the present invention, the respective engaging portions can be pressed against the grounding rails by urging the respective engaging portions of the two grounding metal pieces with springs inside.

これによって、ワンタッチで各係合部の接地レールへの着脱が可能で、接地レールへの固定に要する手間と作業工数が削減されて、接地レールの鍔部分の変形を抑えつつ接地不良が防止される。 As a result, each engagement part can be attached to and detached from the grounding rail with a single touch, reducing labor and man-hours required for fixing the grounding rail to the grounding rail, and preventing poor grounding while suppressing deformation of the heel part of the grounding rail. The

以上により、本発明によれば、二つの接地金具の各係合部に対して互いに内側にばねで付勢して各係合部を接地レールに押圧可能としているため、ワンタッチで各係合部の接地レールへの着脱が可能で、接地レールへの固定に要する手間と作業工数を削減して、接地レールの鍔部分の変形を抑えつつ接地不良を防止することができる。 As described above, according to the present invention, each engagement portion of the two grounding metal members is biased inward by a spring so that each engagement portion can be pressed against the grounding rail. Can be attached to and detached from the grounding rail, and the labor and work required for fixing to the grounding rail can be reduced, and deformation of the flange portion of the grounding rail can be suppressed, and grounding failure can be prevented.

以下に、本発明の接地端子台の実施形態１、２について、図面を参照しながら詳細に説明する。
（実施形態１）
図１（ａ）は、本発明の実施形態１に係る接地端子台の要部構成例を示す上面図、図１（ｂ）は、図１（ａ）の正面図、図１（ｃ）は、図１（ｂ）の側面図である。図２（ａ）は、図１の接地端子台から金具部分を取り出した場合の正面図、図２（ｂ）は、図２（ａ）の側面図である。 Embodiments 1 and 2 of the ground terminal block of the present invention will be described below in detail with reference to the drawings.
(Embodiment 1)
FIG. 1A is a top view showing a configuration example of a main part of a ground terminal block according to Embodiment 1 of the present invention, FIG. 1B is a front view of FIG. 1A, and FIG. FIG. 2 is a side view of FIG. 2A is a front view when the metal part is taken out from the ground terminal block of FIG. 1, and FIG. 2B is a side view of FIG. 2A.

図１（ａ）〜図１（ｃ）、図２（ａ）および図２（ｂ）において、本実施形態１の接地端子台１０は、両端縁部分にねじ締結用の長円状の穴１１（貫通孔）を持つ短冊状の導電端子１と、この導電端子１の下方位置で導電端子１の長手方向に互いにスライド自在に設置され、穴１１に対向する位置にねじ穴２１がそれぞれ設けられた二つの接地金具２と、二つの接地金具２に対して互いに内側にレール固定用の付勢力を付与する圧縮ばね３と、これらを収容する樹脂製の絶縁ユニット４とを有している。 1 (a) to 1 (c), 2 (a), and 2 (b), the ground terminal block 10 of the first embodiment has an oval hole 11 for screw fastening at both ends. A strip-shaped conductive terminal 1 having a (through hole), a slidable installation in the longitudinal direction of the conductive terminal 1 at a position below the conductive terminal 1, and a screw hole 21 provided at a position facing the hole 11. Two grounding metal fittings 2, a compression spring 3 for applying a biasing force for fixing the rails to the inside of the two grounding metal fittings 2, and a resin insulating unit 4 for accommodating them.

導電端子１は、例えば短冊状の銅板または真鍮板にニッケルめっきや錫めっきが施されており、配線時に、その両端縁部分にそれぞれ設けられた両長円状の穴１１にねじ１２をそれぞれ通してその下の接地金具２のねじ穴２１にねじ１２を螺合させて締結するようになっている。導電端子１の両長円状の穴１１（貫通穴）からねじ１２を締結することにより、後述するように二つの接地金具２の位置が固定される。この固定により、配線などで引っ張られても、接地金具２が互いにスライドして開いて接地レール５から外れることはない。 In the conductive terminal 1, for example, a strip-shaped copper plate or brass plate is nickel-plated or tin-plated, and at the time of wiring, screws 12 are respectively inserted into both ellipse-shaped holes 11 provided at both end portions. The screw 12 is screwed into the screw hole 21 of the grounding metal fitting 2 below, and fastened. By fastening the screw 12 from both ellipsoidal holes 11 (through holes) of the conductive terminal 1, the positions of the two grounding fittings 2 are fixed as will be described later. Due to this fixing, the ground metal fittings 2 do not slide and open from the ground rail 5 even when pulled by wiring or the like.

二つの接地金具２はそれぞれ同じ形状をしており、前後に直角に断面コ字状に折れ曲り、その折れ曲がった両先端板部分２４に、接地レール５の鍔部分５ａが収容可能なように係合部（切り欠き部または段差部、ここでは切り欠き部）２２が形成されている。また、接地金具２は、断面コ字状の中央の平面部分２３にねじ穴２１がバーリング加工されており、平面部分２３からその半分の幅で延設された延設部２５が設けられ、平面部分２３の幅と同じ幅部分の先端板部分２６が延設部２５から断面Ｌ字状に、上記断面コ字状部分の折れ曲り方向とは直交する方向に折れ曲がっている。二つの接地金具２の各延設部２５にはそれぞれその長手方向に直交する方向に長方形状の切り欠き部２５ａが互いに対向する位置に設けられている。二つの接地金具２の各切り欠き部２５ａの上方の導電端子１には丸穴（または角穴などの貫通穴）が設けられており、上方から導電端子１側の丸穴を通して各切り欠き部２５ａ（長方形の穴になっている）内にマイナスドライバの先端部分を挿入してマイナスドライバを回転させることにより、容易に、二つの接地金具２を接地レール５から開いて外す方向にスライドさせることができる。図１（ａ）では二つの切り欠き部２５ａが互いにスライドした状態を示している。 The two grounding fixtures 2 have the same shape, and are bent in a U-shaped cross section at right angles to the front and rear, so that the bent portions 5a of the grounding rail 5 can be accommodated in the bent both end plate portions 24. A joint portion (notched portion or stepped portion, here a notched portion) 22 is formed. Further, the grounding fitting 2 has a screw hole 21 burring processed in a central plane portion 23 having a U-shaped cross section, and is provided with an extending portion 25 extending from the plane portion 23 with a half width thereof. A front end plate portion 26 having the same width as the width of the portion 23 is bent in an L-shaped section from the extending portion 25 in a direction perpendicular to the bending direction of the U-shaped section. Each extending portion 25 of the two grounding fittings 2 is provided with a rectangular cutout portion 25a at a position facing each other in a direction orthogonal to the longitudinal direction. A round hole (or a through-hole such as a square hole) is provided in the conductive terminal 1 above each notch 25a of the two grounding fittings 2, and each notch is passed through the round hole on the conductive terminal 1 side from above. By inserting the tip of a flathead screwdriver into 25a (which is a rectangular hole) and rotating the flathead screwdriver, the two grounding brackets 2 can be easily slid in the direction of opening and removing from the grounding rail 5. Can do. FIG. 1A shows a state in which the two notches 25a are slid relative to each other.

これらの二つの接地金具２を組合せて、各先端板部分２６を対向配置させると共に、接地レール用の係合部２２を対向配置させて、各先端板部分２４間に圧縮ばね３を収容することにより、各先端板部分２６を外側に広げる方向に付勢力を付与する。これによって、対向した接地レール用の係合部２２も連動して、互いに接近する方向に付勢力が働く。二つの接地金具２は、導電端子１の下方位置で、導電端子１の長手方向に、各係合部２２が接近または離間方向に移動自在に配置される。 Combining these two grounding metal fittings 2, the tip plate portions 26 are arranged to face each other, and the engaging portions 22 for the ground rail are arranged to face each other, so that the compression spring 3 is accommodated between the tip plate portions 24. Thus, an urging force is applied in a direction in which each tip plate portion 26 is expanded outward. As a result, the urging force acts in the direction in which the engaging portions 22 for the grounding rails facing each other are also interlocked with each other. The two grounding fittings 2 are arranged at positions below the conductive terminal 1 so that the respective engaging portions 22 are movable in the approaching or separating direction in the longitudinal direction of the conductive terminal 1.

ユニット４は、複数個その厚み方向に連結可能とされ、ユニット４のそれぞれに、ねじ１２が取り付けられた導電端子１、二つの接地金具２および圧縮ばね３をそれぞれ収容して保持している。なお、ユニット４は、互いに抱き合わせになって収容物を内部に収容するように縦方向に二つに分割されていてもよい。 A plurality of units 4 can be connected in the thickness direction, and each unit 4 accommodates and holds a conductive terminal 1 to which a screw 12 is attached, two grounding fittings 2 and a compression spring 3. In addition, the unit 4 may be divided | segmented into two in the vertical direction so that it might tie together and accommodate a stored item in the inside.

上記構成により、まず、接地端子台１０の対向した各係合部２２の一方を接地レール５の鍔部分５ａの一方に嵌め込んだ状態で、圧縮ばね３の付勢力に抗して、対向した各係合部２２間の距離を広げてワンタッチで他方の係合部２２を鍔部分５ａの他方に嵌め込む。二つの接地金具２の各係合部２２は、圧縮ばね３の付勢力により、接地レール５の鍔部分５ａに両側から内側に押圧して電気的に接触している。 With the above configuration, first, one of the opposing engaging portions 22 of the ground terminal block 10 is opposed to the urging force of the compression spring 3 in a state in which one of the engaging portions 22 is fitted into one of the flange portions 5a of the ground rail 5. The distance between the engaging portions 22 is increased, and the other engaging portion 22 is fitted into the other of the flange portions 5a by one touch. The respective engaging portions 22 of the two grounding metal members 2 are in electrical contact with the flange portion 5a of the grounding rail 5 by being pressed inward from both sides by the urging force of the compression spring 3.

次に、導電端子１の一方の長円状の穴１１（貫通孔）にねじ１２を通して、接地金具２の平面部分２３のねじ穴２１にねじ１２を締結することにより配線を行う。また、導電端子１の他方の長円状の穴１１（貫通孔）にねじ１２を通して、別の接地金具２の平面部分２３のねじ穴２１にねじ１２を締結することにより配線を行う。別途、接地レール５への接地用にねじ締めすることなく、配線作業のねじ締めだけで、導電端子１から接地金具２を介して接地レール５に安定した接圧で電気的に接続して接地することができる。 Next, wiring is performed by passing the screw 12 through one oval hole 11 (through hole) of the conductive terminal 1 and fastening the screw 12 to the screw hole 21 of the flat surface portion 23 of the ground metal fitting 2. Further, wiring is performed by passing the screw 12 through the other oval hole 11 (through hole) of the conductive terminal 1 and fastening the screw 12 to the screw hole 21 of the flat portion 23 of another grounding metal fitting 2. Separately, it is not necessary to screw for grounding to the grounding rail 5, but only by screwing in the wiring work, and it is electrically connected to the grounding rail 5 from the conductive terminal 1 via the grounding metal fitting 2 with a stable contact pressure. can do.

この場合に、導電端子１は二つの接地金具２とねじ締結によって一体的に固定されており、配線を引っ張っても二つの接地金具２がスライドして接地レール５から外れたり外に出てくることはない。 In this case, the conductive terminal 1 is integrally fixed to the two grounding fittings 2 by screw fastening, and even if the wiring is pulled, the two grounding fittings 2 slide and come off from the grounding rail 5 or come out. There is nothing.

定期的なメンテナンス時などに、まず、接地端子台１０を接地レール５から外す場合、導電端子１上の配線をねじを緩めて外して二つの接地金具２がスライド可能状態にし、圧縮ばね３の付勢力に抗して、対向した各係合部２２間の距離を広げてワンタッチで取り外すことができる。また、前述したように、マイナスドライバを用いて、対向した各係合部２２間の距離を広げて取り外すこともできる。 When the ground terminal block 10 is first removed from the ground rail 5 during regular maintenance, etc., the wiring on the conductive terminal 1 is unscrewed and the two grounding fittings 2 are made slidable. The distance between the opposing engaging portions 22 can be increased against the urging force and removed with one touch. Further, as described above, the distance between the opposing engaging portions 22 can be increased and removed using a flathead screwdriver.

次に、接地端子台１０に新たなユニット部を加えるなどして、対向した各係合部２２の一方を接地レール５の鍔部分５ａの一方に嵌め込んだ状態で、圧縮ばね３の付勢力に抗して、対向した各係合部２２間の距離を広げてワンタッチで他方の係合部２２を鍔部分５ａの他方に嵌め込む。二つの接地金具２の各係合部２２は、圧縮ばね３の付勢力により、接地レール５の鍔部分５ａに両側から内側に押圧して電気的に安定して接触する。 Next, a biasing force of the compression spring 3 is applied in a state where one of the opposing engaging portions 22 is fitted into one of the flange portions 5a of the ground rail 5 by adding a new unit portion to the ground terminal block 10 or the like. Against this, the distance between the opposing engaging portions 22 is increased, and the other engaging portion 22 is fitted into the other of the flange portions 5a with one touch. The engaging portions 22 of the two grounding metal members 2 are pressed against the flange portion 5a of the grounding rail 5 inward from both sides by the urging force of the compression spring 3 so as to come into electrical stable contact.

同様に、導電端子１の長円状の穴１１（貫通孔）にねじ１２を通して、接地金具２の平面部分２３のねじ穴２１にねじ１２を締結する。これによって、従来のように、別途、接地レール５への接地用にねじ締めすることなく、配線作業のねじ締めだけで、圧縮ばね３の付勢力により、導電端子１から接地金具２を介して接地レール５に安定して接地することができる。
（実施形態２）
上記実施形態１では本発明を通常の端子台に適用した場合について説明したが、本実施形態２では本発明をねじアップ式の端子台に適用した場合について説明する。 Similarly, the screw 12 is passed through the oval hole 11 (through hole) of the conductive terminal 1, and the screw 12 is fastened to the screw hole 21 of the flat surface portion 23 of the ground metal fitting 2. Thus, unlike the conventional case, the screw is not screwed separately for grounding to the grounding rail 5, but only by screwing in the wiring work, and by the biasing force of the compression spring 3 from the conductive terminal 1 through the grounding metal fitting 2. The grounding rail 5 can be stably grounded.
(Embodiment 2)
In the first embodiment, the case where the present invention is applied to a normal terminal block has been described. In the second embodiment, the case where the present invention is applied to a screw-up type terminal block will be described.

図３（ａ）は、本発明の実施形態２に係る接地端子台の要部構成例を示す上面図、図３（ｂ）は、図３（ａ）の正面図、図３（ｃ）は、図３（ｂ）の側面図である。図４は、図３の接地端子台から金具部分を取り出した場合の正面図である。なお、図３（ａ）〜図３（ｃ）および図４では、上記図１（ａ）〜図１（ｃ）、図２（ａ）および図２（ｂ）で説明した各部材と同様の作用効果を奏する部材には同一の符号を付してその説明を省略する。 FIG. 3A is a top view showing a configuration example of a main part of a ground terminal block according to Embodiment 2 of the present invention, FIG. 3B is a front view of FIG. 3A, and FIG. FIG. 4 is a side view of FIG. FIG. 4 is a front view when the metal part is taken out from the ground terminal block of FIG. 3 (a) to 3 (c) and FIG. 4, the same members as those described in FIGS. 1 (a) to 1 (c), 2 (a) and 2 (b) are used. The same reference numerals are given to the members having the effects, and the description thereof is omitted.

図３（ａ）〜図３（ｃ）および図４において、本実施形態２の接地端子台２０は、両端縁部分に締結用の長円状の穴１１（貫通孔）を持つ短冊状の導電端子１と、導電端子１の下方位置で導電端子１の長手方向に互いにスライド自在に設置され、穴１１に対向する位置にねじ穴２１が設けられた二つの接地金具２と、二つの接地金具２に対して互いに左右方向内側にレール固定用の付勢力を付与する圧縮ばね３と、ねじアップ用の座金付ねじ１３と、座金付のねじ１３の下端部がねじ穴２から離間する方向（垂直方向）に、座金付のねじ１３に付勢力を付与する圧縮ばね６と、これらを収容して保持すると共に、導電端子１に対して垂直方向にねじアップ用の座金付ねじ１３を上下移動（アップ・ダウン）自在にガイドする絶縁部材からなるユニット４Ａとを有している。 3 (a) to 3 (c) and FIG. 4, the ground terminal block 20 of the second embodiment is a strip-shaped conductive member having an oblong hole 11 (through hole) for fastening at both edge portions. Two grounding metal fittings 2, which are slidably installed in the longitudinal direction of the conductive terminal 1 at a position below the terminal 1, and provided with a screw hole 21 at a position facing the hole 11, and two grounding metal fittings A direction in which the compression spring 3 for applying a biasing force for fixing the rail to the inner side in the left-right direction with respect to 2, the screw 13 with a washer for screw-up, and the lower end portion of the screw 13 with a washer are separated from the screw hole 2 ( In the vertical direction), the compression spring 6 for applying an urging force to the screw 13 with a washer is received and held, and the screw with a washer 13 for screwing up is moved vertically with respect to the conductive terminal 1 in the vertical direction. (Up / Down) Consists of insulating members that guide freely And a knit 4A.

特に、本実施形態２の接地端子台２０では、ユニット４Ａに導電端子１とその下でスライド可能な二つの接地金具２とが収容保持されているが、導電端子１と接地金具２との間には隙間Ａが設けられており、ねじアップ用の座金付ねじ１３の締結時に、接地金具２が導電端子１側の隙間Ａ（例えば１ｍｍ程度）をなくす方向に上側に移動して、これに伴って、接地レール５の鍔部分５ａと下側から係合する係合部（切り欠き部または段差部、ここでは段差部）２２も上方に移動して接地レール５の鍔部分５ａを、ユニット４Ａの底面部分とその係合部２２とで挟み込んでより確実に、接地レール５を二つの接地金具２で固定することができるようになっている。 In particular, in the ground terminal block 20 of the second embodiment, the unit 4A accommodates and holds the conductive terminal 1 and the two ground brackets 2 that can slide under the unit 4A. Is provided with a gap A, and when the screw 13 with a washer for screw-up is fastened, the grounding metal fitting 2 moves upward in a direction to eliminate the gap A (for example, about 1 mm) on the conductive terminal 1 side. Along with this, the engaging portion (notch or stepped portion, here, stepped portion) 22 that engages with the flange portion 5a of the ground rail 5 from the lower side also moves upward, and the flange portion 5a of the ground rail 5 is moved to the unit. The ground rail 5 can be fixed by the two ground metal fittings 2 more reliably by being sandwiched between the bottom surface portion of 4A and the engaging portion 22 thereof.

このときに、二つの接地金具２の係合部２２が接地レール５の鍔部分５ａを下方から押し上げるように接触（押圧）するが、接地レール５の鍔部分５ａへの食い込みがより少ないように先端部が折り返されており、レール変形を抑えるために、その折り返し部２２ａの接地レール５への接触面積を大きくすると共に、折り返し部２２ａにも多少の復元力（ばね性）を持たせて緩み止めとしている。 At this time, the engaging portions 22 of the two grounding metal fittings 2 contact (press) the heel portion 5a of the ground rail 5 so as to push up the heel portion 5a from below, but the biting portion 5a of the ground rail 5 is less bite. The tip is folded back, and in order to suppress rail deformation, the contact area of the folded portion 22a with the grounding rail 5 is increased, and the folded portion 22a is also loosened with some restoring force (spring property). It is stopped.

上記構成により、まず、接地端子台２０の対向した各係合部２２の一方を接地レール５の鍔部分５ａの一方側に嵌め込んだ状態で、圧縮ばね３の付勢力に抗して、対向した各段差２２間の距離を広げてワンタッチで他方の係合部２２をその鍔部分５ａの他方に嵌め込む（テーパ部でワンタッチで嵌め込む）。二つの接地金具２の各係合部２２は、圧縮ばね３の付勢力により、接地レール５の鍔部分５ａに両側から内側に押圧して電気的に接続している。 With the above configuration, first, one of the opposing engaging portions 22 of the grounding terminal block 20 is fitted to one side of the flange portion 5a of the grounding rail 5, and is opposed to the urging force of the compression spring 3. The distance between each step 22 is increased, and the other engagement portion 22 is fitted into the other of the flange portions 5a by one touch (it is fitted with a taper portion with one touch). Each engaging portion 22 of the two grounding metal fittings 2 is electrically connected to the flange portion 5a of the grounding rail 5 from both sides inward by the urging force of the compression spring 3.

次に、アップしている座金付ねじ１３の下方先端部と、導電端子１の穴１１間に、電線が圧着された圧着端子（アンプ端子）を挿入して、アンプ端子のねじ用穴内にねじ先端部を通し、座金付ねじ１３をその座金と共に、その先端部を圧縮ばね６の付勢力に抗して下降させ、ねじ先端部を接地金具２のねじ穴２１に締め付けてアンプ端子を導電端子１と座金付ねじ１３の座金とで挟み込む。このようにして、導電端子１の一方の長円状の穴１１（貫通孔）にねじ１３を通して、接地金具２の平面部分２３のねじ穴２１にねじ１３を締結することにより配線を行う。また、導電端子１の他方の長円状の穴１１（貫通孔）にもねじ１３の先端部を通して、別の接地金具２の平面部分２３のねじ穴２１にねじ１３を締結することにより配線を行う。よって、従来のように、別途、接地レール５への接地用にねじを締めることなく、配線作業のねじ締めだけで、導電端子１から接地金具２を介して接地レール５に安定した接圧で電気的に接続して接地することができる。 Next, a crimping terminal (amplifier terminal) to which a wire is crimped is inserted between the lower tip of the screw with washer 13 that is up and the hole 11 of the conductive terminal 1, and the screw is inserted into the screw hole of the amplifier terminal. Through the tip, the washer-attached screw 13 together with the washer is lowered with its tip against the urging force of the compression spring 6, and the screw tip is tightened into the screw hole 21 of the grounding fitting 2 to connect the amplifier terminal to the conductive terminal. 1 and the washer of the screw 13 with a washer. In this way, wiring is performed by passing the screw 13 through one oval hole 11 (through hole) of the conductive terminal 1 and fastening the screw 13 to the screw hole 21 of the flat surface portion 23 of the ground metal fitting 2. Further, the wiring is performed by passing the tip of the screw 13 through the other oval hole 11 (through hole) of the conductive terminal 1 and fastening the screw 13 to the screw hole 21 of the plane portion 23 of another grounding fitting 2. Do. Therefore, unlike the conventional case, a separate contact pressure from the conductive terminal 1 to the ground rail 5 via the grounding metal fitting 2 can be obtained by simply tightening the wiring work without tightening a screw for grounding to the ground rail 5. It can be electrically connected and grounded.

この場合に、導電端子１は二つの接地金具２とのねじ締結によって一体的に固定されており、配線を引っ張っても二つの接地金具２がスライドして接地レール５から外れたり外部に抜け出てくることはない。 In this case, the conductive terminal 1 is integrally fixed by screw fastening with the two grounding metal fittings 2. Even if the wiring is pulled, the two grounding metal fittings 2 slide and come off from the grounding rail 5 or come out to the outside. Never come.

定期的なメンテナンス時などに、まず、接地端子台１０を接地レール５から外す場合、座金付のねじ１３を緩めると、座金付のねじ１３の下方先端が導電端子１のねじ穴１１から離脱し、圧縮ばね６の付勢力により座金付ねじ１３が座金と共に導電端子１の表面に対して垂直方向にアップ移動する。これによって、二つの接地金具２が互いにスライド可能状態になり、圧縮ばね３の付勢力に抗して、対向した各係合部２２間の距離をマイナスドライバーなどで広げてワンタッチで取り外すことができる。 When the ground terminal block 10 is first removed from the ground rail 5 during regular maintenance, when the screw 13 with the washer is loosened, the lower end of the screw 13 with the washer is detached from the screw hole 11 of the conductive terminal 1. Due to the urging force of the compression spring 6, the screw 13 with the washer moves up with the washer in the vertical direction with respect to the surface of the conductive terminal 1. As a result, the two grounding metal fittings 2 are slidable with respect to each other, and the distance between the opposing engaging portions 22 can be increased with a flathead screwdriver or the like against the urging force of the compression spring 3 and removed with one touch. .

次に、接地端子台１０に新たなユニット部を加えるなどして、対向した各係合部２２の一方を接地レール５の鍔部分５ａの一方に嵌め込んだ状態で、圧縮ばね３の付勢力に抗して、対向した各係合部２２間の距離を広げてワンタッチで他方の係合部２２を鍔部分５ａの他方に嵌め込む。二つの接地金具２の各係合部２２は、圧縮ばね３の付勢力により、接地レール５の鍔部分５ａに両側から内側に押圧して電気的に接続する。 Next, a biasing force of the compression spring 3 is applied in a state where one of the opposing engaging portions 22 is fitted into one of the flange portions 5a of the ground rail 5 by adding a new unit portion to the ground terminal block 10 or the like. Against this, the distance between the opposing engaging portions 22 is increased, and the other engaging portion 22 is fitted into the other of the flange portions 5a with one touch. Each engaging portion 22 of the two grounding metal fittings 2 is electrically connected to the flange portion 5a of the grounding rail 5 from both sides inward by the urging force of the compression spring 3.

同様に、アップしている座金付ねじ１３の下方先端部と、導電端子１の穴１１間に、電線が圧着されたアンプ端子を挿入して、アンプ端子のねじ用穴内にねじ先端部を通し、座金付ねじ１３をその座金と共に、その先端部を圧縮ばね６の付勢力に抗して下降させ、ねじ先端部を接地金具２のねじ穴２１に締め付けてアンプ端子を導電端子１と座金付ねじ１３の座金とで挟み込む。このように、導電端子１の長円状の穴１１（貫通孔）にねじ１３の先端部を通して、接地金具２の平面部分２３のねじ穴２１にねじ１２を締結する。これによって、従来のように、別途、接地レール５への接地用にねじ締めすることなく、配線作業のねじ締めだけで、圧縮ばね３の付勢力により、導電端子１から接地金具２を介して接地レール５に安定して接地することができる。 Similarly, an amplifier terminal to which an electric wire is crimped is inserted between the lower tip of the screw with washer 13 that is up and the hole 11 of the conductive terminal 1, and the screw tip is passed through the screw hole of the amplifier terminal. The screw 13 with a washer together with the washer is lowered with its tip against the urging force of the compression spring 6, and the screw tip is tightened into the screw hole 21 of the ground metal fitting 2 to attach the amplifier terminal to the conductive terminal 1 and the washer. Clamp with the washer of the screw 13. In this manner, the screw 12 is fastened to the screw hole 21 of the flat surface portion 23 of the ground metal fitting 2 through the tip of the screw 13 through the oblong hole 11 (through hole) of the conductive terminal 1. Thus, unlike the conventional case, the screw is not screwed separately for grounding to the grounding rail 5, but only by screwing in the wiring work, and by the biasing force of the compression spring 3 from the conductive terminal 1 through the grounding metal fitting 2. The grounding rail 5 can be stably grounded.

特に、本実施形態２では、ねじアップ用の座金付ねじ１３の締結時に、接地金具２が導電端子１側の隙間をなくす方向に上側に移動し、これに伴って、接地レール５の鍔部分５ａと係合する係合部２２も上方に移動して接地レール５の鍔部分５ａを、ユニット４Ａの底面部分とその係合部２２とで挟み込んでより確実に、接地レール５を二つの接地金具２で固定する。 In particular, in the second embodiment, when the screw 13 with the washer for screw-up is fastened, the ground metal fitting 2 moves upward in the direction of eliminating the gap on the conductive terminal 1 side, and accordingly, the flange portion of the ground rail 5 The engaging portion 22 that engages with 5a also moves upward, and the flange portion 5a of the ground rail 5 is sandwiched between the bottom portion of the unit 4A and the engaging portion 22 so that the ground rail 5 is more securely grounded. Secure with bracket 2.

このとき、係合部２２の折り返し部２２ａが接地レール５に食い込まず、接地レール５を変形させない。折り返し部２２ａにも多少の復元力（ばね性）があるため、接地レール５と折り返し部２２ａとの緩み止めになる。 At this time, the folded-back portion 22a of the engaging portion 22 does not bite into the ground rail 5, and the ground rail 5 is not deformed. Since the folded portion 22a also has some restoring force (spring property), the ground rail 5 and the folded portion 22a are prevented from loosening.

以上により、本実施形態１，２によれば、導電端子１の下方位置で導電端子１の長手方向に互いにスライド自在に設置され、長穴１１に対向してねじ穴２１が設けられ、接地レール５の両側鍔部分５ａに係合可能とする二つの接地金具２と、二つの接地金具２に対して互いに内側に付勢力を付与するばね３とを有し、絶縁ユニット４には、二つの接地金具２およびばね３が収容保持され、ばね３の付勢力により導電端子１が二つの接地金具２を介して接地レール５に接地可能とされている。このように、二つの接地金具２の各係合部２２に対して互いに内側にばね３で付勢して各係合部２２を接地レール５に押圧可能としているため、ワンタッチで各係合部２２の接地レール５への着脱が可能で、接地レール５への固定に要する手間と作業工数を削減して、接地レール５の両側の鍔部分の変形を抑えつつ接地不良を防止することができる。 As described above, according to the first and second embodiments, the conductive terminal 1 is slidably installed in the longitudinal direction of the conductive terminal 1 at the position below the conductive terminal 1, the screw hole 21 is provided facing the long hole 11, and the ground rail 5, two grounding fittings 2 that can be engaged with both side flange portions 5 a, and a spring 3 that applies an urging force to the inside of the two grounding fittings 2. The grounding fitting 2 and the spring 3 are accommodated and held, and the conductive terminal 1 can be grounded to the grounding rail 5 via the two grounding fittings 2 by the urging force of the spring 3. In this way, the respective engagement portions 22 of the two ground metal fittings 2 are urged toward each other by the springs 3 so as to be able to press the respective engagement portions 22 against the ground rail 5. 22 can be attached to and detached from the grounding rail 5, reducing labor and man-hours required for fixing to the grounding rail 5, and preventing poor grounding while suppressing deformation of the heel portions on both sides of the grounding rail 5. .

なお、上記実施形態１，２では、二つの接地金具２の各延設部２５にそれぞれ、マイナスドライバの先端部が挿入可能な長方形状の切り欠き部２５ａがその長手方向に直角な方向に互いに対向してそれぞれ設けられる構成としたが、マイナスドライバの先端部に限らず、長方形状の切り欠き部２５ａに挿入可能なマイナス形状の先端部であればよい。このマイナス形状の先端部としては、マイナスドライバの先端部の他に、マイナスドライバの先端部と同等な工具の先端部であってもよい。 In the first and second embodiments, each of the extending portions 25 of the two grounding brackets 2 has a rectangular cutout portion 25a into which the tip of a flat-blade screwdriver can be inserted. Although it is configured so as to be opposed to each other, it is not limited to the tip portion of the minus driver, and any tip portion having a minus shape that can be inserted into the rectangular cutout portion 25a may be used. In addition to the tip of the minus driver, the tip of the minus shape may be a tip of a tool equivalent to the tip of the minus driver.

以上のように、本発明の好ましい実施形態１，２を用いて本発明を例示してきたが、本発明は、この実施形態１，２に限定して解釈されるべきものではない。本発明は、特許請求の範囲によってのみその範囲が解釈されるべきであることが理解される。当業者は、本発明の具体的な好ましい実施形態１，２の記載から、本発明の記載および技術常識に基づいて等価な範囲を実施することができることが理解される。本明細書において引用した特許、特許出願および文献は、その内容自体が具体的に本明細書に記載されているのと同様にその内容が本明細書に対する参考として援用されるべきであることが理解される。 As mentioned above, although this invention was illustrated using preferable Embodiment 1, 2 of this invention, this invention should not be limited and limited to this Embodiment 1,2. It is understood that the scope of the present invention should be construed only by the claims. It is understood that those skilled in the art can implement an equivalent range based on the description of the present invention and the common general technical knowledge from the description of the specific preferred embodiments 1 and 2 of the present invention. Patents, patent applications, and documents cited herein should be incorporated by reference in their entirety, as if the contents themselves were specifically described herein. Understood.

本発明は、例えば原子力発電所、火力発電所および変電所などの配電盤、制御盤および監視盤などに用いられ、例えば総合接地配線と各機器からの接地配線との配線中継および配線分岐するための接地端子台の分野において、二つの接地金具の各係合部に対して互いに内側にばねで付勢して各係合部を接地レールに押圧可能としているため、ワンタッチで各係合部の接地レールへの着脱が可能で、接地レールへの固定に要する手間と作業工数を削減して、接地レールの鍔部分の変形を抑えつつ接地不良を防止できる。 The present invention is used, for example, in switchboards such as nuclear power plants, thermal power plants and substations, control panels, monitoring panels, etc., for example, for relaying and branching wiring between general ground wiring and ground wiring from each device. In the field of grounding terminal blocks, each engaging part of two grounding brackets is urged inside by a spring so that each engaging part can be pressed against the grounding rail. It can be attached to and detached from the rail, reducing labor and man-hours required for fixing to the ground rail, and preventing grounding failure while suppressing deformation of the flange portion of the ground rail.

（ａ）は、本発明の実施形態１に係る接地端子台の要部構成例を示す上面図、（ｂ）は、（ａ）の正面図、（ｃ）は、（ｂ）の側面図である。(A) is a top view which shows the principal part structural example of the ground terminal block which concerns on Embodiment 1 of this invention, (b) is a front view of (a), (c) is a side view of (b). is there. （ａ）は、図１の接地端子台から金具部分を取り出した場合の正面図、（ｂ）は、（ａ）の側面図である。(A) is a front view at the time of taking out a metal fitting part from the ground terminal block of FIG. 1, (b) is a side view of (a). （ａ）は、本発明の実施形態２に係る接地端子台の要部構成例を示す上面図、（ｂ）は、（ａ）の正面図、（ｃ）は、（ｂ）の側面図である。(A) is a top view which shows the principal part structural example of the ground terminal block which concerns on Embodiment 2 of this invention, (b) is a front view of (a), (c) is a side view of (b). is there. 図３の接地端子台から金具部分を取り出した場合の正面図である。It is a front view at the time of taking out a metal fitting part from the grounding terminal block of FIG. 従来の接地端子台の要部構成例を示す正面図である。It is a front view which shows the principal part structural example of the conventional ground terminal block.

符号の説明Explanation of symbols

１導電端子
１１長円状の穴
１２ねじ
１３ねじアップ用の座金付ねじ
２接地金具
２１ねじ穴
２２係合部（切り欠き部または段差部）
２２ａ折り返し部
２３平面部分
２４先端板部分
２５延設部
２５ａ切り欠き部
２６先端板部分
３、６圧縮ばね
４、４Ａユニット
５接地レール
５ａ鍔部分
１０、２０接地端子台 DESCRIPTION OF SYMBOLS 1 Conductive terminal 11 Oval hole 12 Screw 13 Screw with washer for screw up 2 Grounding metal fitting 21 Screw hole 22 Engagement part (notch part or level | step difference part)
22a Folding portion 23 Plane portion 24 Tip plate portion 25 Extension portion 25a Notch portion 26 Tip plate portion 3, 6 Compression spring 4, 4A Unit 5 Ground rail 5a 鍔 portion 10, 20 Ground terminal block

Claims

長手方向両側に貫通穴が設けられた短冊状の導電端子と、該導電端子を保持する絶縁ユニットとを有する接地端子台において、
該導電端子の下方位置で該導電端子の長手方向に互いにスライド自在に設置され、該貫通穴に対向してねじ穴が設けられ、接地レールの両側の鍔部分に係合可能とする係合部が設けられた二つの接地金具と、該二つの接地金具の各係合部に対して互いに内側に付勢するばねとを有し、該絶縁ユニットには、該二つの接地金具および該ばねが収容保持され、該ばねの付勢力により該各係合部が該接地レールに押圧可能とされている接地端子台。 In a ground terminal block having a strip-shaped conductive terminal provided with through holes on both sides in the longitudinal direction, and an insulating unit holding the conductive terminal,
An engaging portion that is slidably installed in the longitudinal direction of the conductive terminal at a position below the conductive terminal, is provided with a screw hole facing the through hole, and is engageable with the flange portions on both sides of the ground rail And two springs biasing inwardly with respect to the engaging portions of the two grounding brackets, and the insulating unit includes the two grounding brackets and the springs. A ground terminal block that is housed and held, and that each engaging portion can be pressed against the ground rail by the biasing force of the spring.

前記導電端子は、配線時に、前記貫通穴を通して前記ねじ穴にねじが締結されて前記二つの接地金具と一体的に固定されている請求項１に記載の接地端子台。 2. The ground terminal block according to claim 1, wherein the conductive terminal is fixed integrally with the two grounding brackets by screwing the threaded hole through the through-hole during wiring.

前記二つの接地金具はそれぞれ、前記絶縁ユニットの厚み方向に対して前後に直角に断面コ字状に折れ曲り、その折れ曲がった両先端板部分が該二つの接地金具に、前記接地レールの両側の鍔部分にそれぞれ係合可能とする前記各係合部がそれぞれ設けられ、前記ねじ穴が該断面コ字状の中央平面部分に設けられ、該平面部分からその半分の幅で延設された延設部が設けられ、該平面部分の幅部分の先端板部分が該延設部から断面Ｌ字状に、該断面コ字状部分の折れ曲り方向とは直交する方向に折れ曲がっており、該二つの接地金具を組合せて、該延設部から折れ曲がった先端板部分がそれぞれ対向配置され、該各先端板部分間に前記ばねが配置されている請求項１に記載の接地端子台。 Each of the two grounding metal parts is bent in a U-shaped cross section perpendicular to the thickness direction of the insulating unit in the front-rear direction, and both bent end plate portions are connected to the two grounding metal parts on both sides of the grounding rail. Each of the engaging portions that can be engaged with the flange portion is provided, and the screw hole is provided in the central plane portion having a U-shaped cross section, and is extended from the plane portion with a half width thereof. An end plate portion of the width portion of the plane portion is bent in an L-shaped section from the extending portion, and is bent in a direction perpendicular to the bending direction of the U-shaped section. The grounding terminal block according to claim 1, wherein two grounding metal fittings are combined, the tip plate portions bent from the extending portion are arranged to face each other, and the spring is arranged between the tip plate portions.

前記各係合部は、切り欠き部または段差部で構成されている請求項３に記載の接地端子台。 The grounding terminal block according to claim 3, wherein each of the engaging portions includes a cutout portion or a stepped portion.

前記二つの接地金具の各延設部にはそれぞれ、マイナスドライバの先端部が挿入可能な長方形状の切り欠き部がその長手方向に直角な方向に互いに対向してそれぞれ設けられている請求項３に記載の接地端子台。 4. Each of the extended portions of the two grounding metal fittings is provided with a rectangular cutout portion into which a tip of a minus driver can be inserted, facing each other in a direction perpendicular to the longitudinal direction thereof. The grounding terminal block described in 1.

前記段差部には、前記接地レールの両側の鍔部分に下方から当接可能に折り曲げられた折り曲げ部を有している請求項４に記載の接地端子台。 The ground terminal block according to claim 4, wherein the stepped portion has a bent portion that is bent so as to come into contact with a flange portion on both sides of the ground rail from below.

前記絶縁ユニットは、複数個その厚み方向に連結可能とされているかまたは、前記導電端子、前記二つの接地金具および前記ばねを内部に収容するように縦方向に二つに分割されて該厚み方向に互いに抱き合わせになった状態で、複数個その厚み方向に連結可能とされている請求項１に記載の接地端子台。 A plurality of the insulating units are connectable in the thickness direction, or are divided into two in the vertical direction so as to accommodate the conductive terminal, the two grounding fittings, and the spring in the thickness direction. The grounding terminal block according to claim 1, wherein a plurality of the grounding terminal blocks can be connected in the thickness direction in a state where they are tangled together.

前記導電端子と前記二つの接地金具との間には所定の隙間が設けられており、ねじ締結時に、該二つの接地金具の係合部が前記接地レールの両側の鍔部分とその下方から係合するように移動して、該接地レールの両側の鍔部分を、前記絶縁ユニットの底面部分と該係合部とで挟み込んで固定する構成とした請求項１に記載の接地端子台。 A predetermined gap is provided between the conductive terminal and the two grounding metal fittings, and when the screws are fastened, the engaging portions of the two grounding metal parts are engaged from the flange portions on both sides of the grounding rail and from below. The grounding terminal block according to claim 1, wherein the grounding terminal block is configured to move so as to fit and to fix the flange portions on both sides of the grounding rail between the bottom surface portion of the insulating unit and the engaging portion.

ねじアップ用の座金付ねじと、該座金付ねじの下端部が前記ねじ穴から離間する方向に、該座金付ねじに付勢力を付与するばねとを更に有し、前記絶縁ユニットは、これらを収容して保持すると共に、前記導電端子に対して垂直方向に該ねじアップ用の座金付ねじを上下移動自在にガイドする絶縁部材を有している請求項１に記載の接地端子台。
A screw with a washer for screw-up, and a spring for applying a biasing force to the screw with the washer in a direction in which a lower end portion of the screw with the washer is separated from the screw hole. The grounding terminal block according to claim 1, further comprising an insulating member that accommodates and holds and guides the screw with a washer for screwing up in a vertical direction with respect to the conductive terminal.