JP3541614B2

JP3541614B2 - Wiring equipment for grounding

Info

Publication number: JP3541614B2
Application number: JP10650297A
Authority: JP
Inventors: 隆司川本; 豊加藤
Original assignee: Matsushita Electric Works Ltd
Current assignee: Panasonic Electric Works Co Ltd
Priority date: 1997-04-23
Filing date: 1997-04-23
Publication date: 2004-07-14
Anticipated expiration: 2017-04-23
Also published as: JPH10302856A

Description

【０００１】
【発明の属する技術分野】
本発明は、アース線を結線するためのアース用配線器具に関するものである。
【０００２】
【従来の技術】
図６は従来のアース用配線器具の一例を示し、端子板（図示せず）、座金５０及び端子ねじ５１から成るねじ締め式のアース端子５２が器体４９の前面に設けられている。
【０００３】
【発明が解決しようとする課題】
上記従来例では、アース線をアース端子５２に結線する際に、端子ねじ５１の締め付けトルクに応じてアース線と端子板との接触信頼性が大きく変わってしまうという問題がある。
本発明は上記問題点の解決を目的とするものであり、アース線を確実に結線することができるアース用配線器具を提供しようとするものである。
【０００４】
【課題を解決するための手段】
請求項１の発明は、上記目的を達成するために、器体の前面にアース線が挿入されるアース線挿入口を１乃至複数設けるとともに、外部の接地線と接続される接地端子部と、該接地端子部に電気的に接続されたアース端子板と、前記アース線挿入口から挿入されるアース線を前記アース端子板に圧接して接触導通させる錠ばねとを前記器体内に納装して成り、大角形連用配線器具の１個モジュール寸法に前記器体を形成するとともに、大角形連用配線器具の取付枠に前記器体を着脱自在に取り付ける取付手段と、前記錠ばねを圧接解除方向に撓ませる解除手段とを具備し、該解除手段は、前記器体の前面に形成された凹部の一端側を軸にして回動自在に設けられ、操作時に前記錠ばねを圧接解除方向に撓ませる解除レバーから成り、前記凹部の他端側に前記アース線挿入口が設けられるとともに、非操作時の前記解除レバーを前記凹部内に収めて前記器体の前面側へ突出しないようにしたことを特徴とし、アース線挿入口からアース線を挿入すれば、錠ばねによってアース線をアース端子板に圧接して接触導通させることができ、従来のねじ締め式のアース端子に比較して高い接触信頼性が得られるとともに、アース線の結線作業が簡素化できる。また、解除レバーにより錠ばねを撓ませることでアース線を容易に結線し、且つ取り外すことができ、しかも、非操作時には解除レバーが器体の前面から突出しないから外観上の見栄えがよい。
【０００５】
【発明の実施の形態】
図１は本実施形態の分解斜視図であり、合成樹脂製のボディ２とカバー３とを金属製の組立枠４により結合して、大角形連用配線器具（ＪＩＳＣ８３０４参照）の１個モジュール寸法の器体１を構成している。また、組立枠４は中央片４ａの両側から脚片４ｂが垂下されて全体が略コ字形に形成されるとともに、両脚片４ｂの先端部が二股になっている。そして、図２に示すようにボディ２をカバー３に突き合わせた状態でカバー３を跨ぐように組立枠４を取着し、二股の先端部を拡開してボディ２側面の係止部２ａに係止させることにより、ボディ２とカバー３を組立枠４によって結合している。組立枠４の中央片４ａには一対の係止爪４ｃと、略ロ字形の係止片４ｄとが設けてあり、後述するように、大角形連用配線器具の取付枠３０（ＪＩＳＣ８３７５参照）に容易に取り付けられるようになっている。
【０００６】
図２（ｄ）に示すように、ボディ２の底部には収納部２ｂと連通する一対の接地線挿入孔７が設けてある。また上記収納部２ｂ内には、端子板９、鎖錠ばね１０並びに解除釦１１から成る速結端子構造を有する接地端子部８が収納される。ここで、端子板９は導電性を有する板材を略コ字形に折曲して形成され、両端からアース端子板１２が斜め方向に突出する基片９ａと、この基片９ａに対向する一対の端子片９ｂとを具備している。そして、基片９ａと各端子片９ｂとの間に上記鎖錠ばね１０並びに解除釦１１が配置される。
【０００７】
接地端子部８がボディ２の収納部２ｂ内に収納された状態では、鎖錠ばね１０に設けた鎖錠片１０ａ及び接触片１０ｂが端子片９ｂに対向する。鎖錠片１０ａ及び接触片１０ｂは、弾性を有する導電材料の帯板の両端部を曲成して中央片１０ｃの両端部に形成されている。鎖錠片１０ａは中央片１０ｃとの連結部位から先端縁に向かって端子片９ｂに近づく向きに傾斜し、接触片１０ｂは略Ｓ字形に曲成されている。また、中央片１０ｃは略平板状に形成されていて基片９ａに当接する。而して、鎖錠ばね１０の鎖錠片１０ａ及び接触片１０ｂと端子片９ｂとの間に、ボディ２の底部に設けた接地線挿入孔７から挿入された図示しない接地線（例えば、電源の接地側に接続された線等）が挿入されると、鎖錠片１０ａの先端が接地線に食い込んで抜け止めがなされるとともに、鎖錠片１０ａ及び接触片１０ｂによって接地線が端子片９ｂに圧接されることにより、接地線と端子板９（すなわち接地端子部８）との導通（接続）が図られる。また、解除釦１１は、操作されることによって鎖錠ばね１０の鎖錠片１０ａを圧接解除方向に撓ませ、鎖錠片１０ａの先端を接地線から引き離して接地端子部８と接地線との接続を解除するものである。
【０００８】
一方、基片９ａから突出する一対のアース端子板１２には、各々錠ばね１３が取着されている。この錠ばね１３は、帯板状のばね材を略三角形状に折曲するとともに、先細に形成された一方の先端部１３ａを他方の先端部分に形成された挿通孔１３ｂの周縁に係止させて成り、先端部１３ａを含む固定片１３ｃをアース端子板１２に面接触させてかしめや溶接等の適宜の方法により固定される。なお、アース端子板１２の先端部分も先細に形成されており、この先端部分が錠ばね１３の先端部１３ａと一体になって挿通孔１３ｂの周縁に係止される。
【０００９】
カバー３の前面には矩形の凹部３ａが一対設けてあり、各凹部３ａの一端側からカバー３内部に貫通するアース線挿入口５が設けてある。ここで、アース線挿入口５は、その中心線がカバー３前面の法線方向から所定の角度だけ傾けて形成してあり、図２（ｄ）に示すようにアース端子板１２の傾斜方向に略一致させてある。
【００１０】
さらに、カバー３内部に連通する各凹部３ａの他端側には、合成樹脂製の解除レバー１４が回動自在に枢着してある。この解除レバー１４は、平板状の操作部１４ａの一端側に、略扇形であって両側面より軸部１４ｃが突設された当接部１４ｂを一体に形成して成り、軸部１４ｃをカバー３内部に設けた軸孔（図示せず）に枢支して、凹部３ａ内に進退自在且つカバー３に対して回動自在となっている。ここで、解除レバー１４の当接部１４ｂが錠ばね１３の湾曲した角部１３ｄに当接しているため、錠ばね１３の復帰力によって解除レバー１４が閉じる方向に弾性付勢されている。なお、当接部１４ｂの側面には、カバー３の係止段部３ｅに係止して解除レバー１４の閉じる方向の回動を規制するストッパ部１４ｅが突設されている。
【００１１】
而して、カバー３前面のアース線挿入口５から挿入されるアース線１５は、図３に示すように、以下のようにしてアース端子板１２と電気的に接続される。
まず、図３（ａ）はアース線１５を接続する前の状態を示しており、上述のように錠ばね１３の復元力によって錠ばね１３の上記角部１３ｄに当接している解除レバー１４が図における反時計回りに付勢され、当接部１４ｂに突設されたストッパ部１４ｅがカバー３の係止段部３ｅに係止して解除レバー１４は基準位置に停止している。このとき、アース端子板１２に取着されている方の錠ばね１３の先端部１３ａが、他端側の挿通孔１３ｂの上端縁に係止されている。この状態から、人が手で操作部１４ａをカバー３の前面より突出する方向（図示における時計回りに回動する方向）に解除レバー１４を操作すれば、図３（ｂ）に示すように解除レバー１４が回動して当接部１４ｂにより錠ばね１３が撓ませられ、錠ばね１３の角部１３ｄがアース端子板１２の方へ移動し、それに伴って先端部１３ａが挿通孔１３ｂの上端縁から離れ、挿通孔１３ｂがアース線挿入口５に対向するようになる。
【００１２】
次に、解除レバー１４をカバー３の凹部３ａから引き上げた状態で、図３（ｃ）に示すようにアース線１５をアース線挿入口５に挿入すれば、アース線１５の芯線１５ａが錠ばね１３の挿通孔１３ｂに挿通される。この状態で解除レバー１４から手を離せば、錠ばね１３の復帰力によって解除レバー１４が図示における反時計回りに回動するため、錠ばね１３の挿通孔１３ｂが設けられている方の先端部分がアース端子板１２の方へ移動し、挿通孔１３ｂの上端縁によってアース端子板１２にアース線１５が圧接されることになる。よって、錠ばね１３のばね力によってアース線１５がアース端子板１２に圧接されるため、アース線１５とアース端子板１２とが接触導通し、電気的且つ機械的に接続されることになる。
【００１３】
一方、アース線１５を取り外す場合は逆の動作を行えばよく、解除レバー１４を図示における時計回りに回動させることで錠ばね１３の挿通孔１３ｂの上端縁を下方へ移動させ、錠ばね１３のばね力を解放することでアース端子板１２に対するアース線１５の圧接を解除し、アース線１５をアース線挿入口５から引き抜くことができる。
【００１４】
上述のように構成される本実施形態は、図４に示すような取付枠３０を用いて壁面等に埋込設置することができる。この取付枠３０は、合成樹脂製であって、長手方向に対向する取付片３１には、図示しない埋込ボックスに取り付けるためのボックスねじ用の長孔３２と、壁を構成する石膏ボードなどに取り付けるための従来周知のはさみ金具（図示せず）が取着される取着孔３３と、前面にプレート枠（図示せず）等を取り付けるためのプレートねじ用のねじ孔３４とが少なくとも設けてある。また、取付枠３０の一方の側片３５には２つで１組となった係止孔（図示せず）が３組ずつ並設され、他方の側片３６には横長の板片３７が垂設されている。この板片３７には開口部３９が３つ並設され、各開口部３９の下縁には突出片３８が上方へ突設してある。
【００１５】
而して、器体１を結合している組立枠４の係止爪４ａを側片３５の図示しない係止孔に挿入したのち、反対側の係止爪４ａを突出片３８の肩４０に載せるようにして開口部３９に挿入すれば、図４の一点破線で示すように器体１の前面を取付枠３０の取付孔４１から突出させた状態で器体１を取付枠３０に取り付けることができる。また、取付枠３０の残りの係止孔等にはコンセントやスイッチなどの他の配線器具（大角連用形配線器具）を取り付けることができ、取付枠３０によって他の配線器具と容易に並設できるものである。但し、係止爪を組立枠４に設ける代わりに、図５に示すようにカバー３の側面から係止爪４２を一体に突設するようにしてもよい。この場合には、例えばカバー３から垂設した組立爪の孔の周縁にボディ２の側面に突設した係止突起を係止することで、組立枠４を用いずにボディ２とカバー３とを組立結合すればよい。
【００１６】
なお、合成樹脂製の取付枠３０の代わりに、固定爪と可動爪とを取付孔の両側に備えた金属製の取付枠（図示せず）を用いて壁面等に配設することも可能である。この場合、組立枠４に突設された略ロ字形の係止片４ｄの孔の一方に固定爪を挿入したのち、可動爪を他方の係止片４ｄの孔に押し込んで係止することで容易に取り付けることができる。
【００１７】
上述のように本実施形態によれば、解除レバー１４を押し上げた状態でアース線挿入口５にアース線１５を挿入するだけで簡単に結線することができ、従来のねじ締め式のアース端子に比較して結線作業が容易になって施工性が向上できる。しかも、アース線１５は錠ばね１３によって常に一定の力でアース端子板１２に圧接されるため、ねじ締め式の従来例に比べて確実に結線することでき、接触信頼性の向上が図れる。また、器体１の前面に端子ねじのような大型の部品が突出するようことがなくなり、限られたスペースを有効に利用することができる。また、解除レバー１４の操作部１４ａが器体１の前面側へ突出しないため、器体１の前面を略平坦な状態にすることができ、外観上の見栄えをよくすることができる。さらに、アース線挿入口５を器体１の前面の法線方向から所定の角度だけ傾けて設けているので、結線されたアース線１５の突出方向を器体１の前面に略平行な方向とすることができ、他の配線器具と並設された場合にアース線１５が他の配線器具に干渉することが防止できるという利点がある。また、既存の配線器具と同様にして埋込ボックス等に容易に取り付けることができ、施工作業の簡素化や部品の共通化が図れるという利点もある。
【００１８】
【発明の効果】
請求項１の発明は、器体の前面にアース線が挿入されるアース線挿入口を１乃至複数設けるとともに、外部の接地線と接続される接地端子部と、該接地端子部に電気的に接続されたアース端子板と、前記アース線挿入口から挿入されるアース線を前記アース端子板に圧接して接触導通させる錠ばねとを前記器体内に納装して成り、大角形連用配線器具の１個モジュール寸法に前記器体を形成するとともに、大角形連用配線器具の取付枠に前記器体を着脱自在に取り付ける取付手段と、前記錠ばねを圧接解除方向に撓ませる解除手段とを具備し、該解除手段は、前記器体の前面に形成された凹部の一端側を軸にして回動自在に設けられ、操作時に前記錠ばねを圧接解除方向に撓ませる解除レバーから成り、前記凹部の他端側に前記アース線挿入口が設けられるとともに、非操作時の前記解除レバーを前記凹部内に収めて前記器体の前面側へ突出しないようにしたので、アース線挿入口からアース線を挿入すれば、錠ばねによってアース線をアース端子板に圧接して接触導通させることができ、従来のねじ締め式のアース端子に比較して高い接触信頼性が得られるとともに、アース線の結線作業が簡素化できるという効果がある。また、解錠レバーにより錠ばねを撓ませることでアース線を容易に結線し、且つ取り外すことができ、しかも、非操作時には解除レバーが器体の前面から突出しないから外観上の見栄えがよいという効果がある。
【図面の簡単な説明】
【図１】実施形態を示す分解斜視図である。
【図２】同上を示し、（ａ）は正面図、（ｂ）は側面図、（ｃ）は他方の側面図、（ｄ）は側面断面図である。
【図３】（ａ）〜（ｃ）は同上におけるアース線の結線方法を説明するための断面図である。
【図４】同上が取り付けられる取付枠の斜視図である。
【図５】同上の他の構成を示す正面図である。
【図６】従来例を示す正面図である。
【符号の説明】
１器体
５アース線挿入口
８接地端子部
９端子板
１２アース端子板
１３錠ばね
１４解除レバー[0001]
TECHNICAL FIELD OF THE INVENTION
TECHNICAL FIELD The present invention relates to a ground wiring device for connecting a ground wire.
[0002]
[Prior art]
FIG. 6 shows an example of a conventional earthing wiring device. A screw-type earth terminal 52 including a terminal plate (not shown), a washer 50 and a terminal screw 51 is provided on the front surface of a body 49.
[0003]
[Problems to be solved by the invention]
In the above conventional example, when connecting the ground wire to the ground terminal 52, there is a problem that the contact reliability between the ground wire and the terminal plate is greatly changed according to the tightening torque of the terminal screw 51.
An object of the present invention is to solve the above-mentioned problems, and an object of the present invention is to provide a ground wiring device capable of securely connecting a ground wire.
[0004]
[Means for Solving the Problems]
In order to achieve the above object, the invention according to claim 1 provides one or more ground wire insertion ports into which a ground wire is inserted on a front surface of a body, and a ground terminal portion connected to an external ground wire, An earth terminal plate electrically connected to the earth terminal portion and a lock spring for pressing an earth wire inserted from the earth wire insertion port into contact with the earth terminal plate so as to make electrical contact therewith are housed in the body. Te made, thereby forming the device body to one module dimension of the large square chronic use wiring device, and attachment means for removably attaching said instrument body to the mounting frame of the large square chronic use wiring device, pressure release direction said locking spring Release means for bending the lock spring in the direction of releasing the pressure contact during operation. The release means is rotatable around one end of a concave portion formed on the front surface of the container. Squeezing release lever, said recess Wherein with ground wire insertion port is provided on the other end, said release lever during non-operation housed in the recess and characterized in that so as not to protrude toward the front side of the device body, the ground wire insertion opening If the ground wire is inserted, the lock spring can press the ground wire against the ground terminal plate to make contact with the ground, making it possible to obtain higher contact reliability than the conventional screw-type ground terminal and to provide a ground wire. Can be simplified. In addition, by bending the lock spring by the release lever, the ground wire can be easily connected and removed, and the appearance is good because the release lever does not protrude from the front surface of the body when not operated.
[0005]
BEST MODE FOR CARRYING OUT THE INVENTION
FIG. 1 is an exploded perspective view of the present embodiment, in which a synthetic resin body 2 and a cover 3 are connected by a metal assembly frame 4, and one module size of a large-sized continuous wiring device (see JIS C8304). Of the body 1. The assembly frame 4 has legs 4b hanging down from both sides of the center piece 4a to form a substantially U-shape as a whole, and the distal ends of the legs 4b are bifurcated. Then, as shown in FIG. 2, the assembly frame 4 is attached so as to straddle the cover 3 with the body 2 abutting the cover 3, and the tip of the fork is widened to the engaging portion 2 a on the side surface of the body 2. By locking, the body 2 and the cover 3 are connected by the assembly frame 4. The center piece 4a of the assembly frame 4 is provided with a pair of locking claws 4c and a substantially square-shaped locking piece 4d. As described later, a mounting frame 30 for a large-sized continuous wiring device (see JIS C8375). It can be easily attached to
[0006]
As shown in FIG. 2D, a pair of ground wire insertion holes 7 communicating with the storage portion 2b are provided at the bottom of the body 2. Further, a grounding terminal portion 8 having a quick-connecting terminal structure including a terminal plate 9, a locking spring 10, and a release button 11 is stored in the storage portion 2b. Here, the terminal plate 9 is formed by bending a conductive plate material into a substantially U-shape, and a base piece 9a from which both ends of the ground terminal plate 12 project obliquely, and a pair of base pieces 9a opposed to the base piece 9a. And a terminal strip 9b. The locking spring 10 and the release button 11 are arranged between the base piece 9a and each terminal piece 9b.
[0007]
When the ground terminal portion 8 is stored in the storage portion 2b of the body 2, the lock piece 10a and the contact piece 10b provided on the lock spring 10 face the terminal piece 9b. The locking piece 10a and the contact piece 10b are formed at both ends of the central piece 10c by bending both ends of the strip of conductive material having elasticity. The lock piece 10a is inclined in a direction approaching the terminal piece 9b from the connection portion with the central piece 10c toward the tip edge, and the contact piece 10b is bent in a substantially S shape. The central piece 10c is formed in a substantially flat plate shape and abuts on the base piece 9a. Thus, a not-shown ground wire (for example, a power supply) inserted from the ground wire insertion hole 7 provided at the bottom of the body 2 between the lock piece 10a and the contact piece 10b of the lock spring 10 and the terminal piece 9b. Is inserted into the ground wire, the tip of the lock piece 10a bites into the ground wire to prevent it from falling off, and the lock wire 10a and the contact piece 10b connect the ground wire to the terminal piece 9b. , Electrical connection (connection) between the ground wire and the terminal plate 9 (that is, the ground terminal portion 8) is achieved. When the release button 11 is operated, the lock piece 10a of the lock spring 10 is bent in the pressing release direction by being operated, and the tip of the lock piece 10a is separated from the ground wire to disconnect the lock terminal 10 from the ground wire. This is to release the connection.
[0008]
On the other hand, a lock spring 13 is attached to each of a pair of ground terminal plates 12 protruding from the base piece 9a. The lock spring 13 bends a band-shaped spring material into a substantially triangular shape, and also locks one of the tapered tip portions 13a to the periphery of an insertion hole 13b formed in the other tip portion. The fixing piece 13c including the tip portion 13a is brought into surface contact with the ground terminal plate 12 and fixed by an appropriate method such as caulking or welding. The distal end of the ground terminal plate 12 is also tapered, and this distal end is integrated with the distal end 13a of the lock spring 13 and is locked on the periphery of the insertion hole 13b.
[0009]
A pair of rectangular concave portions 3a are provided on the front surface of the cover 3, and a ground wire insertion port 5 penetrating into the inside of the cover 3 from one end of each concave portion 3a is provided. Here, the ground wire insertion port 5 is formed such that its center line is inclined by a predetermined angle from the normal direction of the front surface of the cover 3, and as shown in FIG. Approximately matched.
[0010]
Further, a release lever 14 made of a synthetic resin is rotatably connected to the other end of each of the recesses 3a communicating with the inside of the cover 3. The release lever 14 is formed by integrally forming a contact portion 14b, which is substantially fan-shaped and has a shaft portion 14c protruding from both side surfaces, on one end side of a plate-shaped operation portion 14a, and covers the shaft portion 14c. The shaft 3 is pivotally supported by a shaft hole (not shown) provided in the inside 3, and is movable forward and backward into the recess 3 a and rotatable with respect to the cover 3. Here, since the contact portion 14 b of the release lever 14 is in contact with the curved corner 13 d of the lock spring 13, the release force of the lock spring 13 is elastically urged in the closing direction. In addition, a stopper portion 14e that protrudes from a side surface of the abutting portion 14b and that restricts the rotation of the release lever 14 in the closing direction by locking to the locking step 3e of the cover 3 is provided.
[0011]
Thus, as shown in FIG. 3, the ground wire 15 inserted from the ground wire insertion port 5 on the front surface of the cover 3 is electrically connected to the ground terminal plate 12 as follows.
First, FIG. 3A shows a state before the ground wire 15 is connected. As described above, the release lever 14 which is in contact with the corner 13 d of the lock spring 13 by the restoring force of the lock spring 13 is turned on. The stopper 14e, which is urged in the counterclockwise direction in the drawing, is provided on the stopper 3e of the cover 3, and the release lever 14 is stopped at the reference position. At this time, the tip 13a of the lock spring 13 attached to the ground terminal plate 12 is locked to the upper end edge of the insertion hole 13b on the other end. In this state, when the release lever 14 is manually operated by the user to operate the release lever 14 in a direction in which the operation portion 14a protrudes from the front surface of the cover 3 (a direction in which the operation portion 14a rotates clockwise in the drawing), the release is performed as shown in FIG. The lever 14 rotates and the lock spring 13 is bent by the contact portion 14b, and the corner portion 13d of the lock spring 13 moves toward the ground terminal plate 12, and accordingly, the front end portion 13a becomes the upper end of the insertion hole 13b. The insertion hole 13b is separated from the edge, and comes to face the ground wire insertion port 5.
[0012]
Next, when the ground wire 15 is inserted into the ground wire insertion port 5 as shown in FIG. 3C with the release lever 14 pulled up from the concave portion 3a of the cover 3, the core wire 15a of the ground wire 15 becomes a lock spring. 13 is inserted through the thirteen insertion holes 13b. If the user releases the release lever 14 in this state, the release force of the lock spring 13 causes the release lever 14 to rotate counterclockwise in the drawing, so that the distal end portion of the lock spring 13 where the insertion hole 13b is provided is provided. Move toward the ground terminal plate 12, and the ground wire 15 is pressed against the ground terminal plate 12 by the upper end edge of the insertion hole 13b. Therefore, the ground wire 15 is pressed against the ground terminal plate 12 by the spring force of the lock spring 13, so that the ground wire 15 and the ground terminal plate 12 are brought into contact with each other, and are electrically and mechanically connected.
[0013]
On the other hand, when the ground wire 15 is removed, the reverse operation may be performed. By rotating the release lever 14 clockwise in the figure, the upper end edge of the insertion hole 13b of the lock spring 13 is moved downward, and the lock spring 13 is moved. By releasing the spring force, the pressure contact of the ground wire 15 to the ground terminal plate 12 is released, and the ground wire 15 can be pulled out from the ground wire insertion port 5.
[0014]
The present embodiment configured as described above can be embedded and installed on a wall surface or the like using a mounting frame 30 as shown in FIG. The mounting frame 30 is made of synthetic resin, and has a mounting piece 31 facing the longitudinal direction, a long hole 32 for a box screw for mounting to an embedding box (not shown), and a gypsum board forming a wall. At least an attachment hole 33 to which a conventionally known scissor fitting (not shown) for attachment is attached, and a screw hole 34 for a plate screw for attaching a plate frame (not shown) or the like on the front surface are provided at least. is there. On one side piece 35 of the mounting frame 30, three sets of two sets of locking holes (not shown) are arranged side by side, and on the other side piece 36, a horizontally long plate piece 37 is provided. It is hanging. The plate piece 37 has three openings 39 arranged side by side, and a projecting piece 38 projects upward from the lower edge of each opening 39.
[0015]
After inserting the locking claw 4a of the assembly frame 4 connecting the body 1 into the locking hole (not shown) of the side piece 35, the opposite locking claw 4a is fitted to the shoulder 40 of the protruding piece 38. When the body 1 is inserted into the opening 39 so as to be placed on the mounting frame 30, the body 1 is attached to the mounting frame 30 with the front surface of the body 1 protruding from the mounting hole 41 of the mounting frame 30 as shown by a dashed line in FIG. Can be. In addition, other wiring devices such as outlets and switches (large-size continuous-type wiring devices) can be attached to the remaining locking holes and the like of the mounting frame 30 and can be easily arranged side by side with the other wiring devices by the mounting frame 30. It is. However, instead of providing the locking claws on the assembly frame 4, the locking claws 42 may be integrally protruded from the side surface of the cover 3 as shown in FIG. In this case, for example, the body 2 and the cover 3 can be connected to each other without using the assembly frame 4 by locking a locking protrusion projecting from a side surface of the body 2 to a peripheral edge of a hole of an assembly claw vertically provided from the cover 3. May be assembled and connected.
[0016]
Instead of the synthetic resin mounting frame 30, it is also possible to dispose a fixed claw and a movable claw on a wall surface or the like using a metal mounting frame (not shown) provided on both sides of the mounting hole. is there. In this case, after a fixed claw is inserted into one of the holes of the substantially square-shaped locking piece 4d protruding from the assembly frame 4, the movable claw is pushed into the hole of the other locking piece 4d and locked. Can be easily installed.
[0017]
As described above, according to the present embodiment, the connection can be easily performed only by inserting the grounding wire 15 into the grounding wire insertion port 5 with the release lever 14 pushed up. In comparison, the connection work becomes easier and the workability can be improved. In addition, since the ground wire 15 is always pressed against the ground terminal plate 12 by the lock spring 13 with a constant force, the wire can be securely connected as compared with the conventional screw tightening type, and the contact reliability can be improved. In addition, a large component such as a terminal screw does not protrude from the front surface of the housing 1, and a limited space can be effectively used. Further, since the operation portion 14a of the release lever 14 does not protrude toward the front side of the body 1, the front surface of the body 1 can be made substantially flat, and the appearance can be improved. Further, since the ground wire insertion port 5 is provided at a predetermined angle from the normal direction of the front surface of the body 1, the projecting direction of the connected ground wire 15 is set to a direction substantially parallel to the front surface of the body 1. Therefore, there is an advantage that the ground wire 15 can be prevented from interfering with another wiring device when the wiring device is arranged in parallel with another wiring device. Further, it can be easily attached to an embedding box or the like in the same manner as the existing wiring equipment, and there is an advantage that the construction work can be simplified and components can be shared.
[0018]
【The invention's effect】
According to the first aspect of the present invention, one or more ground wire insertion holes into which a ground wire is inserted are provided on a front surface of a body, a ground terminal portion connected to an external ground wire, and an electrically connected ground terminal portion. A grounding terminal plate connected thereto, and a lock spring for pressing and contacting the grounding wire inserted from the grounding wire insertion port to the grounding terminal plate and bringing the grounding wire into contact with the grounding terminal plate; Mounting means for removably attaching the body to the mounting frame of the large-sized continuous wiring device, and releasing means for bending the lock spring in the pressure releasing direction, while forming the body to one module size. The release means is provided so as to be rotatable around one end of a concave portion formed on the front surface of the container, and comprises a release lever which bends the lock spring in a pressure release direction at the time of operation. Insert the ground wire into the other end of the Together are provided, since does not project toward the front side of the device body said release lever during non-operation housed in the recess, by inserting the ground wire from the ground wire insertion opening, the ground wire by locking spring Can be brought into contact with the ground terminal plate to make contact conduction, so that higher contact reliability can be obtained as compared with a conventional screw-fastened ground terminal, and the effect of simplifying the work of connecting the ground wire can be obtained. In addition, by bending the lock spring by the unlocking lever, the ground wire can be easily connected and removed, and when not operated, the release lever does not protrude from the front surface of the body, so that the appearance is good. effective.
[Brief description of the drawings]
1 is an exploded perspective view showing an exemplary shape condition.
2 (a) is a front view, FIG. 2 (b) is a side view, FIG. 2 (c) is another side view, and FIG. 2 (d) is a side sectional view.
FIGS. 3 (a) to 3 (c) are cross-sectional views for explaining a method of connecting a ground wire in the above.
FIG. 4 is a perspective view of a mounting frame to which the above is mounted.
FIG. 5 is a front view showing another configuration of the above.
FIG. 6 is a front view showing a conventional example.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Body 5 Ground wire insertion port 8 Ground terminal part 9 Terminal plate 12 Ground terminal plate 13 Lock spring 14 Release lever

Claims

One or more ground wire insertion holes into which a ground wire is inserted are provided on the front surface of the body, a ground terminal portion connected to an external ground wire, and a ground terminal plate electrically connected to the ground terminal portion. A lock spring for pressing an earth wire inserted from the earth wire insertion opening into the earth terminal plate to make contact with the earth terminal plate is provided in the body, and the module size of one large square continuous wiring device is set to the module size. Along with forming the body, there are provided mounting means for detachably mounting the body on the mounting frame of the large-sized continuous wiring device , and release means for bending the lock spring in the pressure release direction, the release means comprising: A release lever is provided rotatably around one end of a concave portion formed on the front surface of the container, and is configured to bend the lock spring in a pressure releasing direction during operation. When a wire insertion port is provided , The ground wiring device being characterized in that so as not to protrude toward the front side of the device body said release lever during non-operation housed in the recess.