JP4978365B2 - Circuit breaker for wiring - Google Patents

Circuit breaker for wiring Download PDF

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Publication number
JP4978365B2
JP4978365B2 JP2007206458A JP2007206458A JP4978365B2 JP 4978365 B2 JP4978365 B2 JP 4978365B2 JP 2007206458 A JP2007206458 A JP 2007206458A JP 2007206458 A JP2007206458 A JP 2007206458A JP 4978365 B2 JP4978365 B2 JP 4978365B2
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base
wiring
circuit breaker
sub
connecting piece
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JP2009043518A (en
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浩之 岡村
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Nitto Kogyo Corp
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Nitto Kogyo Corp
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Description

本発明は、バックスタッドによる裏面配線接続ができる配線用遮断器に関するものである。   The present invention relates to a circuit breaker for wiring that can be connected to a back surface wiring by a back stud.

配線用遮断器は通常、表面側の端子座に電線または配線バーを固定して接続しているが、配線用遮断器の取付板面より後側で配線を行う場合には、バックスタッドを端子座の裏面の取付孔に取付け、取付板面に設けた配線孔に挿入してバックスタッドの端部に電線等を接続する方法（例えば特許文献１の図４）がある。   Normally, a circuit breaker for wiring is connected with a wire or a bar fixed to the terminal seat on the front side. However, when wiring is performed on the rear side of the mounting plate surface of the circuit breaker, connect the back stud to the terminal. There is a method (for example, FIG. 4 of Patent Document 1) in which an electric wire or the like is attached to an end portion of a back stud by being attached to an attachment hole on the back surface of the seat and inserted into a wiring hole provided on the attachment plate surface.

このようなバックスタッドによる裏面配線は頻度が小さいので、通常は、端子座の裏面の取付孔は配線用遮断器の底面を覆うサブベースによって隠蔽されている。そしてバックスタッドによる裏面配線を行うときだけ、配線用遮断器のベースからサブベースを取り外し、取付孔の覆い部を切断して除去したうえで、再びサブベースをベースに取付けていた。しかしこのような作業は煩雑であるという問題があった。
実開平２−１０４５２６号公報 Since the back surface wiring by such a back stud is infrequent, the mounting hole on the back surface of the terminal seat is usually concealed by a sub-base that covers the bottom surface of the circuit breaker for wiring. And only when performing the backside wiring by the back stud, the sub-base was removed from the base of the circuit breaker for wiring, the cover portion of the mounting hole was cut and removed, and the sub-base was attached to the base again. However, there is a problem that such work is complicated.
Japanese Utility Model Publication No. 2-104526

本発明は上記した従来の問題点を解決し、バックスタッドによる裏面配線接続作業を効率よく行うことができる配線用遮断器を提供することを目的とするものである。   An object of the present invention is to solve the above-mentioned conventional problems and to provide a circuit breaker for wiring that can efficiently perform back surface wiring connection work using a back stud.

上記の課題を解決するためになされた本発明は、ベースの底面をサブベースで覆った配線用遮断器において、ベースの端子座の底面に形成された裏面配線用孔を塞ぐ遮蔽部を、接続片を介してサブベースの端部に連設するとともに、ベースの底面の上記接続片に対応する位置に切断工具の先端を挿入できる凹部を形成したことを特徴とするものである。   The present invention made to solve the above-mentioned problems is a circuit breaker in which the bottom surface of the base is covered with the sub-base, and a shielding portion for closing the back surface wiring hole formed on the bottom surface of the base terminal seat is connected. A recess is formed so as to be continuous with the end of the sub-base via a piece and into which the tip of the cutting tool can be inserted at a position corresponding to the connecting piece on the bottom surface of the base.

なお、接続片を切取り可能な軸状の細杆とするとともに、凹部をこの接続片の外周よりも大きい隙間部を備えた断面形状とすることが好ましい。   In addition, it is preferable that the connecting piece is formed into a shaft-shaped narrow rod that can be cut off, and the concave portion has a cross-sectional shape having a gap portion larger than the outer periphery of the connecting piece.

本発明の配線用遮断器は、ベースの底面をサブベースで覆った配線用遮断器において、ベースの端子座の底面に形成された裏面配線用孔を塞ぐ遮蔽部を、接続片を介してサブベースの端部に連設するとともに、ベースの底面の上記接続片に対応する位置に切断工具の先端を挿入できる凹部を形成したものであるから、従来のようにサブベースを取り外すことなく、接続片を切断工具で切断するだけで、遮蔽部の除去作業が迅速に行える。このため、バックスタッドによる裏面配線作業の作業能率を大幅に向上させることができる。   The circuit breaker according to the present invention is a circuit breaker in which the bottom surface of the base is covered with a sub-base, and the shielding portion that closes the back surface wiring hole formed on the bottom surface of the terminal seat of the base is connected to the Continuing to the end of the base and forming a recess where the tip of the cutting tool can be inserted at a position corresponding to the connecting piece on the bottom of the base. By simply cutting the piece with a cutting tool, the removal of the shielding part can be performed quickly. For this reason, the work efficiency of the back surface wiring work by the back stud can be greatly improved.

また請求項２のように、接続片を軸状の細杆とするとともに、凹部をこの接続片の外周よりも大きい隙間部を備えた断面形状とすれば、接続片を小さな力で簡単に切断できるので、切断作業の負荷を低減でき作業能率の向上を図ることができる。   Further, as in claim 2, if the connecting piece is formed into a shaft-like narrow rod and the recess has a cross-sectional shape having a gap portion larger than the outer periphery of the connecting piece, the connecting piece can be easily cut with a small force. Therefore, the cutting work load can be reduced, and the work efficiency can be improved.

以下に、図面を参照しつつ本発明の好ましい実施の形態を示す。
図１は、本発明の実施形態を示す配線用路遮断器の斜視図である。この図１において、１は筐体であり、該筐体１はベース２と該ベース２に覆着されるカバー３とからなるものである。筐体１の電源側及び負荷側の端部には、端子接続用の端子座４が設けられている。図６に示すように、端子座４の底面のベース２にはバックスタッドが接続できるように、ベース２の裏面に達する裏面配線用孔５が形成されており、その内部にナット４０が装入されている。 Hereinafter, preferred embodiments of the present invention will be described with reference to the drawings.
FIG. 1 is a perspective view of a circuit breaker for wiring showing an embodiment of the present invention. In FIG. 1, reference numeral 1 denotes a casing, and the casing 1 includes a base 2 and a cover 3 that is covered with the base 2. A terminal seat 4 for terminal connection is provided at the power supply side and load side ends of the housing 1. As shown in FIG. 6, the back surface wiring hole 5 reaching the back surface of the base 2 is formed in the base 2 on the bottom surface of the terminal seat 4 so that a back stud can be connected, and a nut 40 is inserted therein. Has been.

図２に、筐体１の裏側斜視図を示す。この図２に示されるように、ベース２の裏面はサブベース２０により覆われており、その電源側及び負荷側の端部には、裏面配線用孔５を塞ぐ遮蔽部２０ａが設けられている。これらの遮蔽部２０ａは筐体１の底面を塞ぎ、ナット４０が裏面配線用孔５から脱落することを防止するものである。   FIG. 2 is a rear perspective view of the housing 1. As shown in FIG. 2, the back surface of the base 2 is covered with the sub-base 20, and shielding portions 20a for closing the back surface wiring holes 5 are provided at the power source side and load side ends. . These shielding portions 20a block the bottom surface of the housing 1 and prevent the nut 40 from falling off the backside wiring hole 5.

図３に示すように、サブベース２０と遮蔽部２０ａとは、接続片２０ｂを介して接続されている。各接続片２０ｂは、ニッパ等の切断工具の先端によって容易に切取り可能な１本の軸状の細杆となっている。   As shown in FIG. 3, the sub base 20 and the shielding part 20a are connected via the connection piece 20b. Each connection piece 20b is a single shaft-shaped narrow rod that can be easily cut by the tip of a cutting tool such as a nipper.

図２、５に示されるように、ベース２の底面の上記接続片２０ｂに対応する位置には、切断工具の先端を挿入できる凹部２ｃが形成されている。凹部２ｃは接続片２０ｂの外周よりも大きい隙間部を備えた断面形状としてある。これによって、サブベース２０をベース２から取り外すことなく、凹部２ｃに切断工具の先端を切断片２０ａの全断面を切断できる深さまで差し込み、接続片２０ｂを切断することが可能となる。   As shown in FIGS. 2 and 5, a recess 2 c into which the tip of the cutting tool can be inserted is formed at a position corresponding to the connection piece 20 b on the bottom surface of the base 2. The recess 2c has a cross-sectional shape with a gap that is larger than the outer periphery of the connection piece 20b. Thus, without removing the sub base 20 from the base 2, it is possible to insert the tip of the cutting tool into the recess 2c to a depth that can cut the entire cross section of the cutting piece 20a, and cut the connection piece 20b.

この実施形態では、凹部２ｃは開口に向かって拡がる傾斜面２ｄを備えた台形状となっており、ニッパ等の切断工具の先端がこの傾斜面２ｄに案内されてより容易に切断作業が行えるようになっている。   In this embodiment, the recess 2c has a trapezoidal shape with an inclined surface 2d that expands toward the opening, and the tip of a cutting tool such as a nipper is guided by the inclined surface 2d so that the cutting operation can be performed more easily. It has become.

このように構成された配線用遮断器は、図１、図２に示す状態で通常の上面からの配線が行えるものであるが、バックスタッドによる裏面配線接続の場合には、サブベース２０をベース２に取り付けたまま、切断工具の先端をベース２の台形状の凹部２ｃを介して接続片２０ｂの下端面より深い位置に挿し込むとともに、開口を大きく拡開させた台形状の凹部２ｃ幅一杯に切断工具の先端を広げたうえ接続片２０ｂの幅より大きく開放させたうえ、切断工具を挟動させれば、接続片２０ｂは容易に切断される。   The circuit breaker configured in this way can perform normal wiring from the upper surface in the state shown in FIGS. 1 and 2, but in the case of back surface wiring connection by a back stud, the sub-base 20 is used as the base. 2 with the tip of the cutting tool inserted through the trapezoidal recess 2c of the base 2 into a position deeper than the lower end surface of the connection piece 20b, and the opening of the trapezoidal recess 2c widened greatly. If the cutting tool is widened and opened wider than the width of the connecting piece 20b, and the cutting tool is moved, the connecting piece 20b is easily cut.

このようにしてサブベース２０の両端の遮蔽部２０ａを切り落として、配線用遮断器の裏面配線用孔５を露呈させたうえナット４０を取り出し、代わりにスタッドボルトを裏面配線用孔５から装入して端子座４に取り付ければ、裏面配線が可能となる。   In this way, the shielding portions 20a at both ends of the sub-base 20 are cut off to expose the back surface wiring hole 5 of the circuit breaker, and the nut 40 is taken out. Instead, the stud bolt is inserted from the back surface wiring hole 5. And if it attaches to the terminal seat 4, back surface wiring will be attained.

以上に説明したように、本発明によれば従来のようにサブベース２０を取り外して遮蔽部２０ａを切り落とす必要はなく、裏面配線作業を容易にことができる。   As described above, according to the present invention, it is not necessary to remove the sub-base 20 and cut off the shielding part 20a as in the prior art, and the back surface wiring work can be facilitated.

本発明の実施の形態を示す配線用遮断器の斜視図である。It is a perspective view of the circuit breaker for wiring which shows the embodiment of the present invention. サブベースを取り付けた状態の配線用遮断器の裏面斜視図である。It is a back surface perspective view of the circuit breaker for wiring in the state where the sub base was attached. サブベースの斜視図である。It is a perspective view of a sub base. サブベースから遮蔽部を除去した状態を示す配線用遮断器の裏面斜視図である。It is a back surface perspective view of the circuit breaker for wiring which shows the state which removed the shielding part from the sub base. 配線用遮断器の側面図である。It is a side view of the circuit breaker for wiring. 要部の断面図である。It is sectional drawing of the principal part.

符号の説明Explanation of symbols

１ 筺体
２ ベース
２ｃ 凹部
２ｄ 傾斜面
３ カバー
４ 端子座
５ 裏面配線用孔
２０ サブベース
２０ａ 遮蔽部
２０ｂ 接続片
４０ ナット DESCRIPTION OF SYMBOLS 1 Housing 2 Base 2c Recessed part 2d Inclined surface 3 Cover 4 Terminal seat 5 Back surface wiring hole 20 Subbase 20a Shielding part 20b Connection piece 40 Nut

Claims (2)

ベースの底面をサブベースで覆った配線用遮断器において、ベースの端子座の底面に形成された裏面配線用孔を塞ぐ遮蔽部を、接続片を介してサブベースの端部に連設するとともに、ベースの底面の上記接続片に対応する位置に切断工具の先端を挿入できる凹部を形成したことを特徴とする配線用遮断器。   In the circuit breaker that covers the bottom of the base with the sub-base, a shielding portion that closes the back-surface wiring hole formed on the bottom of the base terminal seat is connected to the end of the sub-base via a connection piece. A circuit breaker for wiring, characterized in that a recess into which the tip of the cutting tool can be inserted is formed at a position corresponding to the connecting piece on the bottom surface of the base. 接続片を切取り可能な軸状の細杆とするとともに、凹部をこの接続片の外周よりも大きい隙間部を備えた断面形状としたことを特徴とする請求項１に記載の配線用遮断器。   2. The circuit breaker according to claim 1, wherein the connecting piece is formed into a shaft-shaped narrow rod that can be cut off, and the concave portion has a cross-sectional shape having a gap portion larger than the outer periphery of the connecting piece.
JP2007206458A 2007-08-08 2007-08-08 Circuit breaker for wiring Active JP4978365B2 (en)

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JP2007206458A JP4978365B2 (en) 2007-08-08 2007-08-08 Circuit breaker for wiring

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Application Number Priority Date Filing Date Title
JP2007206458A JP4978365B2 (en) 2007-08-08 2007-08-08 Circuit breaker for wiring

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JP2009043518A JP2009043518A (en) 2009-02-26
JP4978365B2 true JP4978365B2 (en) 2012-07-18

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Application Number Title Priority Date Filing Date
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Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5034067U (en) * 1973-07-26 1975-04-12
JPH03190030A (en) * 1989-12-20 1991-08-20 Mitsubishi Electric Corp Circuit breaker
JPH103843A (en) * 1996-06-14 1998-01-06 Mitsubishi Electric Corp Circuit breaker

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