JPH0917282A - Neutral switch - Google Patents
Neutral switchInfo
- Publication number
- JPH0917282A JPH0917282A JP16081495A JP16081495A JPH0917282A JP H0917282 A JPH0917282 A JP H0917282A JP 16081495 A JP16081495 A JP 16081495A JP 16081495 A JP16081495 A JP 16081495A JP H0917282 A JPH0917282 A JP H0917282A
- Authority
- JP
- Japan
- Prior art keywords
- blade
- handle
- neutral switch
- side terminal
- holding member
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Landscapes
- Breakers (AREA)
- Rotary Switch, Piano Key Switch, And Lever Switch (AREA)
Abstract
Description
【発明の詳細な説明】Detailed Description of the Invention
【０００１】[0001]
【産業上の利用分野】本発明は、分電盤などに用いら
れ、電路の接地側と負荷側との間に介在し、接地側と負
荷側との間を電気的に開閉するニュートラルスイッチに
関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a neutral switch for use in a distribution board or the like, which is interposed between a ground side and a load side of an electric path and electrically opens and closes between the ground side and the load side. .
【０００２】[0002]
【従来の技術】従来より、この種の分電盤用スイッチ
１′としては、例えば図１５に示すように、ケーシング
３′の前面に起倒自在なハンドル８が突出する構成が知
られている。ケーシング３′内にハンドル８の起倒に伴
って回動する可動接触子５３を配設している。この可動
接触子５３は、操作片５４と、導電バー５５に接離する
接触片５６とが連続する略く形に形成されており、頂点
付近に枢支孔５７が穿設されている。接触片５６は、ケ
ーシング３′の内周面との間に装着された接圧ばね５８
により、導電バー５５に向かって付勢されている。可動
接触子５３の枢支孔５７には、端子５９より延設された
端子片６０の先端部に突設されている支点突起６１が挿
入され、支点突起６１の回りで可動接触子５３が揺動す
るようになっている。2. Description of the Related Art Conventionally, as a distribution board switch 1'of this type, as shown in FIG. 15, for example, a structure in which a tiltable handle 8 is projected from the front surface of a casing 3'is known. . A movable contactor 53 that rotates when the handle 8 is tilted is arranged in the casing 3 '. The movable contactor 53 is formed in a substantially rectangular shape in which an operation piece 54 and a contact piece 56 that contacts and separates from the conductive bar 55 are continuous, and a pivotal support hole 57 is formed near the apex. The contact piece 56 is a contact pressure spring 58 mounted between the contact piece 56 and the inner peripheral surface of the casing 3 '.
Is urged toward the conductive bar 55. A fulcrum protrusion 61 protruding from the tip of a terminal piece 60 extending from the terminal 59 is inserted into the pivotal support hole 57 of the movable contactor 53, and the movable contactor 53 swings around the fulcrum protrusion 61. It is designed to move.
【０００３】そして、操作片５４にハンドル８のカム部
６２が当接していないときには接圧ばね５８のばね力に
より、接触片５６の先端部が導電バー５５に接触し、操
作片５４がハンドル８のカム部６２によって押圧される
と、接触片５６が導電バー５５から離れる。このように
してスイッチ機構部７０が構成されている。そして、電
線導入口７１を通して外部電線を導入し、ドライバーで
端子ねじ７２の締め付けを行うことにより、負荷側に接
続された外部電線を端子に接続することができるもので
ある。When the cam portion 62 of the handle 8 is not in contact with the operating piece 54, the tip end of the contact piece 56 is brought into contact with the conductive bar 55 by the spring force of the contact pressure spring 58, and the operating piece 54 is held in the handle 8. When pressed by the cam portion 62, the contact piece 56 separates from the conductive bar 55. The switch mechanism unit 70 is configured in this manner. Then, an external electric wire is introduced through the electric wire introducing port 71 and the terminal screw 72 is tightened by a driver, whereby the external electric wire connected to the load side can be connected to the terminal.
【０００４】[0004]
【発明が解決しようとする課題】ところが、従来の可動
接触子５３は、複雑なスイッチ機構７０を用いるために
分電盤用スイッチ１′の構造が複雑となり、特に大容量
の場合には、接点溶着が起こり易く、接触信頼性を確保
するのが困難であった。本発明は、上記従来の課題に鑑
みてなされたもので、その目的とするところは、簡単な
構造で接触信頼性を確保でき、大容量化を図るのが容易
であると共に、操作の安全を確保できるニュートラルス
イッチを提供するにあり、他の目的とするところは、受
刃の露出を防いで見栄えを良くし、器体の取付けに手間
がかからず、しかもハンドルを操作し易くすると共に、
ハンドルの保持部材を容易に且つ確実に取付けることが
でき、さらに複数の器体を１つの機器取付板に対してス
ムーズに取着可能なニュートラルスイッチを提供するに
ある。However, in the conventional movable contactor 53, the structure of the switchboard 1'for the distribution board is complicated because the complicated switch mechanism 70 is used. Especially, in the case of a large capacity, the contact is made. Welding was likely to occur, and it was difficult to secure contact reliability. The present invention has been made in view of the above-mentioned conventional problems, and an object thereof is to ensure contact reliability with a simple structure, to facilitate a large capacity, and to ensure operational safety. It is to provide a neutral switch that can be secured, and the other purpose is to prevent the exposure of the receiving blade to improve the appearance, it does not take much time to attach the body, and the handle is easy to operate,
A neutral switch capable of easily and surely attaching a holding member of a handle and smoothly attaching a plurality of bodies to one equipment mounting plate.
【０００５】[0005]
【課題を解決するための手段】上記課題を解決するため
に、本発明は、電路の接地側と負荷側との間に介在し、
接地側と負荷側との間を電気的に開閉するニュートラル
スイッチにおいて、器体３に設けられた接地側端子４及
び負荷側端子５のいずれか一方に受刃６が電気的に接続
され、いずれか他方に受刃６に接離自在に対向する差込
刃７が電気的に接続され、差込刃７を受刃６に接離させ
るハンドル８が器体３に取着された保持部材９にて開閉
自在に保持されると共に、少なくとも負荷側端子５に電
気的に接続される受刃６又は差込刃７の一方を刃部７ｂ
を除いて絶縁部材にて被覆されて成ることに特徴を有し
ている。In order to solve the above-mentioned problems, the present invention intervenes between the ground side and the load side of an electric circuit,
In the neutral switch that electrically opens and closes between the ground side and the load side, the blade 6 is electrically connected to either one of the ground side terminal 4 and the load side terminal 5 provided on the body 3. On the other hand, an insert blade 7 facing the receiving blade 6 so as to be able to come into contact with and separate from the receiving blade 6 is electrically connected, and a handle 8 for bringing the insert blade 7 into contact with and separating from the receiving blade 6 is attached to the body 3 by a holding member 9 At least one of the receiving blade 6 and the inserting blade 7 that is held openably and closably and is electrically connected to the load side terminal 5 is a blade portion 7b.
It is characterized in that it is covered with an insulating member except for.
【０００６】上記負荷側端子５に差込刃７を電気的に接
続し、この差込刃７を絶縁部材を構成するハンドル８内
に収納保持するのが好ましい。上記ハンドル８又は器体
３の一方に、差込刃７を受刃６に差し込んだ状態で受刃
６の側面を外部から隔離するための隔離壁１１を設ける
のが好ましい。上記隔離壁１１をハンドル８に設けると
共に、ハンドル８を器体３に対して略直交して起立させ
た状態で隔離壁１１の下方の器体３部分に取付ネジ１８
が締め付けられる取付部１９を設けるのが好ましい。[0006] It is preferable to electrically connect an insert blade 7 to the load side terminal 5 and to store and hold the insert blade 7 in a handle 8 which constitutes an insulating member. It is preferable to provide one of the handle 8 and the container 3 with an isolation wall 11 for isolating the side surface of the receiving blade 6 from the outside in a state where the inserting blade 7 is inserted into the receiving blade 6. The isolation wall 11 is provided on the handle 8, and a mounting screw 18 is attached to the portion of the body 3 below the isolation wall 11 in a state where the handle 8 is erected substantially orthogonal to the body 3.
It is preferable to provide a mounting portion 19 for tightening.
【０００７】上記接地側端子４をハンドル８の先端側で
あって、ハンドル８を器体３に対して略平行となる方向
に倒した状態でハンドル８の下面よりも低い位置に配設
するのが好ましい。上記ハンドル８の保持部材９を接地
側端子４又は負荷側端子５の一方と器体３との間に挟持
させるのが好ましい。The ground side terminal 4 is disposed at the tip side of the handle 8 and at a position lower than the lower surface of the handle 8 with the handle 8 tilted in a direction substantially parallel to the body 3. Is preferred. It is preferable to hold the holding member 9 of the handle 8 between one of the ground side terminal 4 or the load side terminal 5 and the body 3.
【０００８】上記ハンドル８又は器体３の一方に、差込
刃７を受刃６に差し込んだ状態で器体３に当接して受刃
６に対する差込刃７の差し込み量を規制するための差込
規制部を設けるのが好ましい。上記ハンドル８と保持部
材９の幅を略同一とし、ハンドル８の両側に内方から外
方になる程下になるように傾斜した下向き傾斜部１３を
形成すると共に、ハンドル８の両側に当接する保持部材
９の両側に夫々内方から外方になる程上になるように傾
斜した上向き傾斜部１４を形成するのが好ましい。In order to regulate the insertion amount of the insertion blade 7 with respect to the receiving blade 6, the insertion blade 7 is inserted into the receiving blade 6 in one of the handle 8 and the receiving body 6 and abuts against the receiving blade 6. It is preferable to provide an insertion restriction part. The handle 8 and the holding member 9 have substantially the same width, and downwardly inclined portions 13 are formed on both sides of the handle 8 so as to become lower from the inner side to the outer side, and contact the both sides of the handle 8. It is preferable to form upward inclined portions 14 on both sides of the holding member 9 so that the inclined portions 14 are inclined so as to increase from the inner side to the outer side.
【０００９】上記器体３の長手方向の少なくとも２箇所
に、機器取付板３１ａに取着するための切溝３３を逆Ｌ
字状に夫々対向するように形成するのが好ましい。上記
機器取付板３１ａの略中央位置と対向する器体３部分
に、機器取付板３１ａの取着ネジ４０の頭部４０ａが挿
通する挿通溝４１を設けるのが好ましい。At least two locations in the longitudinal direction of the body 3 have inverted L-shaped grooves 33 for attaching to the equipment mounting plate 31a.
It is preferable to form them so as to face each other in a letter shape. It is preferable to provide an insertion groove 41 into which the head portion 40a of the attachment screw 40 of the device mounting plate 31a is inserted, in the portion of the body 3 facing the substantially central position of the device mounting plate 31a.
【００１０】[0010]
【作用】本発明によれば、器体３に設けられた接地側端
子４及び負荷側端子５のいずれか一方に受刃６が電気的
に接続され、いずれか他方に受刃６に接離自在に対向す
る差込刃７が電気的に接続され、少なくとも負荷側端子
５に電気的に接続される受刃６又は差込刃７の一方を刃
部７ｂを除いて絶縁部材にて被覆したから、従来のよう
な複雑なスイッチ機構が不要となり、構造を簡略化でき
ると共に、大容量の場合でも、従来のような接点溶着と
いう問題は起こらず、また負荷側端子５に電気的に接続
される受刃６又は差込刃７の一方を絶縁部材にて被覆す
ることで、ハンドル８をオフにしたときでも充電部が露
出せず、安全な操作を行えると共に、受刃６と差込刃７
との両面接触によって、従来の接点方式と比較して接触
面積が大きくなり、接触信頼性を確保するのが容易とな
る。According to the present invention, the blade 6 is electrically connected to either one of the ground side terminal 4 and the load side terminal 5 provided on the body 3, and the other side thereof is brought into contact with or separated from the blade 6. The inserting blades 7 facing each other are electrically connected, and at least one of the receiving blade 6 or the inserting blade 7 electrically connected to the load side terminal 5 is covered with an insulating member except for the blade portion 7b. Therefore, the conventional complicated switch mechanism is not required, the structure can be simplified, and even in the case of a large capacity, the conventional problem of contact welding does not occur, and the load side terminal 5 is electrically connected. By covering one of the receiving blade 6 and the inserting blade 7 with an insulating member, the charged portion is not exposed even when the handle 8 is turned off, and safe operation can be performed, and the receiving blade 6 and the inserting blade 7 can be operated. 7
The double-sided contact with the contact area increases the contact area as compared with the conventional contact method, and it becomes easy to secure contact reliability.
【００１１】[0011]
【実施例】以下、本発明の実施例を図面に基づいて説明
する。本実施例は分電盤２に用いられるニュートラルス
イッチ１を例示する。このニュートラルスイッチ１は、
図１乃至図３に示すように、絶縁材料から成る器体３に
接地側端子４と負荷側端子５とが設けられ、接地側端子
４に受刃６が電気的に接続され、負荷側端子５に該受刃
６に接離自在に対向する差込刃７が電気的に接続される
と共に、差込刃７を受刃６に接離させるハンドル８が器
体３に取着された保持部材９にて開閉自在に保持されて
構成されている。Embodiments of the present invention will be described below with reference to the drawings. This embodiment illustrates a neutral switch 1 used for a distribution board 2. This neutral switch 1
As shown in FIGS. 1 to 3, a body 3 made of an insulating material is provided with a ground side terminal 4 and a load side terminal 5, and a receiving blade 6 is electrically connected to the ground side terminal 4 and a load side terminal is provided. 5, an insert blade 7 facing the receiving blade 6 so as to come into contact with and away from the receiving blade 6 is electrically connected, and a handle 8 for bringing the inserting blade 7 into and out of the receiving blade 6 is attached to the body 3 It is configured to be openably and closably held by a member 9.
【００１２】負荷側端子５に電気的に接続される差込刃
７は、図４及び図５に示すように、その刃部７ｂを除い
て絶縁部材を構成するハンドル８にて被覆されている。
ハンドル８は器体３の一面に対して略直交して突出させ
た状態（オフ状態）では差込刃７と受刃６とが開極し、
ハンドル８を器体３の一面に対して略平行となる方向に
倒した状態（オン状態）では差込刃７と受刃６とが閉極
して、負荷側に接続された外部電線が負荷側端子５に電
気的に接続可能となる。この差込刃７は、ハンドル８に
収納される垂直薄板状の刃本体７ａと、刃本体７ａの一
部下端より突出される刃部７ｂとから成り、一方、受刃
６は上方に開口した二股形状を有し、差込刃７の刃部７
ｂを受刃６の内側に差し込むことによって、両面接触構
造となり、従来のような接点方式と比較して大きな接触
面積を確保できるようにしてある。尚、差込刃７を接地
側端子４に、受刃６を負荷側端子５に夫々電気的に接続
するようにしてもよい。As shown in FIGS. 4 and 5, the insert blade 7 electrically connected to the load side terminal 5 is covered with a handle 8 which constitutes an insulating member except for the blade portion 7b. .
When the handle 8 is projected substantially orthogonally to the one surface of the body 3 (OFF state), the insertion blade 7 and the receiving blade 6 open,
When the handle 8 is tilted in a direction substantially parallel to one surface of the body 3 (ON state), the insertion blade 7 and the receiving blade 6 are closed, and the external electric wire connected to the load side is loaded. It becomes possible to electrically connect to the side terminal 5. The insert blade 7 is composed of a vertical thin plate-shaped blade body 7a housed in the handle 8 and a blade portion 7b protruding from a lower end of a part of the blade body 7a, while the receiving blade 6 is opened upward. It has a bifurcated shape and the blade portion 7 of the insert blade 7
By inserting b into the inside of the receiving blade 6, a double-sided contact structure is formed, and a large contact area can be secured as compared with the conventional contact method. The insert blade 7 may be electrically connected to the ground side terminal 4 and the receiving blade 6 may be electrically connected to the load side terminal 5, respectively.
【００１３】上記ハンドル８は、図７及び図８に示すよ
うに、器体３の一面に起倒自在に突出する断面逆Ｕ字状
をしたレバー部８ａの内側に差込刃７が収納される収納
部８ｂが設けられており、ハンドル８の基端部に枢支孔
８ｃが形成され、この枢支孔８ｃに器体３に取着される
保持部材９に突設した回動軸１０（図１）が回動自在に
嵌め込まれている。ハンドル８の長さ方向中央の両側下
端部には、左右一対の平板状の隔離壁１１が垂下形成さ
れている。この隔離壁１１は、差込刃７を受刃６に差し
込んだ状態で受刃６の両側面を外部から隔離する位置に
配置され、これにより、受刃６が外部に露出するのが防
がれる。またこの隔離壁１１は、差込刃７を受刃６に差
し込んだときに器体３の上面に当接して受刃６に対する
差込刃７の差し込み量を規制するための差込規制部をも
兼ねている。つまり、隔離壁１１は器体３の上面に当接
した状態でハンドル８がオン状態となり、ハンドル８の
オン位置を明確にする機能をも有している。尚、隔離壁
１１はハンドル８側ではなく、器体３側に設けるように
してもよい。また、隔離壁１１と差込規制部とを別部品
とし、受刃６に対する差込刃７の差し込み量を規制する
ためだけの差込規制部をハンドル８或いは器体３のいず
れかに別途設けるようにしてもよい。As shown in FIGS. 7 and 8, the handle 8 has an insert blade 7 housed inside a lever portion 8a having an inverted U-shaped cross section which projects upward and downward on one surface of the body 3. The handle 8 is provided with a storage portion 8b, and a pivot hole 8c is formed at the base end portion of the handle 8. The pivot shaft 10 is provided on the holding member 9 attached to the body 3 in the pivot hole 8c. (FIG. 1) is rotatably fitted. A pair of left and right flat plate-shaped isolation walls 11 are formed at the lower ends of both sides of the center of the handle 8 in the longitudinal direction. The isolation wall 11 is arranged at a position that isolates both side surfaces of the receiving blade 6 from the outside in a state where the inserting blade 7 is inserted into the receiving blade 6, thereby preventing the receiving blade 6 from being exposed to the outside. Be done. Further, the partition wall 11 is provided with an insertion regulating portion for contacting the upper surface of the body 3 when the insertion blade 7 is inserted into the receiving blade 6 to regulate the insertion amount of the insertion blade 7 with respect to the receiving blade 6. Also doubles. That is, the partition wall 11 also has a function of turning on the handle 8 in a state of being in contact with the upper surface of the body 3 and clarifying the on position of the handle 8. The isolation wall 11 may be provided not on the handle 8 side but on the body 3 side. In addition, the isolation wall 11 and the insertion restriction portion are separate parts, and an insertion restriction portion for restricting the insertion amount of the insertion blade 7 with respect to the receiving blade 6 is separately provided on either the handle 8 or the body 3. You may do it.
【００１４】ハンドル８の保持部材９は、図１に示すよ
うに、左右一対の平板状の側壁９ａと、両側壁９ａの下
端部を相互に連結する前後一対の連結部材９ｂとから成
り、一方、器体３の負荷側端子５の端子板５ａが載置さ
れる載置面には、保持部材９の連結部材９ｂを嵌め込む
ための上方に開口した嵌入溝１２が器体３の長さ方向と
直交する方向に凹設されており、連結部材９ｂを嵌入溝
１２に嵌め込んで後述する負荷側端子５の端子板５ａを
器体３の載置面上に載置することで、連結部材９ｂが端
子板５ａと器体３との間で挟まれ、負荷側端子５を器体
３に固定することで取付ネジ等を用いることなく、保持
部材９を器体３に簡単に取着できる構造となっている。
この保持部材９の幅ｄは、本実施例では図６及び図９に
示すように、ハンドル８の隔離壁１１を含む全体幅Ｄと
略同一とされ、ハンドル８の隔離壁１１の側端面には内
方から外方になる程下になるように傾斜した下向き傾斜
部１３が形成されていると共に、両保持部材９の上端面
には内方から外方になる程上になるように傾斜した上向
き傾斜部１４が形成されている。これら傾斜部１３，１
４によって保持部材９は常にハンドル８側に付勢される
こととなり、後述のようにハンドル８をオフ操作すると
きに、その勢いで保持部材９が外側に撓むのが防がれて
いる。As shown in FIG. 1, the holding member 9 of the handle 8 is composed of a pair of left and right flat plate-shaped side walls 9a and a pair of front and rear connecting members 9b for connecting the lower end portions of both side walls 9a to each other. On the mounting surface on which the terminal plate 5a of the load-side terminal 5 of the body 3 is mounted, there is a fitting groove 12 that is opened upward to fit the connecting member 9b of the holding member 9 in the length of the body 3. The connection member 9b is recessed in the direction orthogonal to the direction, and the connection member 9b is fitted into the fitting groove 12 and the terminal plate 5a of the load-side terminal 5, which will be described later, is placed on the placement surface of the body 3 so that the connection is achieved. The member 9b is sandwiched between the terminal plate 5a and the body 3, and the load side terminal 5 is fixed to the body 3 so that the holding member 9 can be easily attached to the body 3 without using mounting screws or the like. It has a structure that allows it.
In this embodiment, the width d of the holding member 9 is substantially the same as the entire width D of the handle 8 including the isolation wall 11 as shown in FIGS. Is formed with a downward sloping portion 13 which is inclined downward from the inner side to the outer side, and is inclined on the upper end surfaces of both holding members 9 from the inner side to the outer side. The upward slope 14 is formed. These inclined parts 13, 1
4, the holding member 9 is always biased toward the handle 8 side, and when the handle 8 is turned off as described later, the holding member 9 is prevented from bending outward due to the force.
【００１５】また、ハンドル８の先端よりも前方Ｆの器
体３部分には、図１に示すように、接地側端子４が配設
されている。接地側端子４は、器体３に取付ネジ１５に
より取着される側方から見て段差形状の端子板４ａを有
し、この端子板４ａの上段側の一端部には受刃６の下端
部に連設される受刃接続部１６が設けられ、端子板４ａ
の下段側の他端部には端子ネジ１７が螺合している。こ
の端子ネジ１７は、図５（ｂ）に示すように、ハンドル
８のオン状態でハンドル８の下面よりも低い位置にくる
ように配設されている。また、ハンドル８の隔離壁１１
よりも下方の器体３部分には、ハンドル８のオフ状態で
取付ネジ１８（図１２参照）が締め付けられる取付部１
９が設けられており、この取付部１９に取付ネジ１８を
嵌め込んで隔離壁１１の前方Ｆからドライバーにて締め
付け可能となっている。さらにハンドル８の基端よりも
後方Ｂの器体３部分には、負荷側端子５が配設されてい
る。負荷側端子５は、器体３に取付ネジ２０により取着
される端子板５ａを有し、この端子板５ａの一端部には
差込刃７の基端部を回動自在に支持する差込刃支持部２
１が設けられ、端子板５ａの他端部には負荷側に接続さ
れる外部電線を電気的に接続するための端子ネジ２２が
設けられている。Further, as shown in FIG. 1, a grounding side terminal 4 is provided in a portion of the body 3 which is located in front F from the tip of the handle 8. The ground-side terminal 4 has a stepped terminal plate 4a which is attached to the body 3 by a mounting screw 15 when viewed from the side, and the lower end of the receiving blade 6 is provided at one upper end of the terminal plate 4a. Is provided with a blade connecting portion 16 connected to the terminal portion, and the terminal plate 4a
A terminal screw 17 is screwed into the other end of the lower stage side. As shown in FIG. 5B, the terminal screw 17 is arranged so as to come to a position lower than the lower surface of the handle 8 when the handle 8 is on. Also, the isolation wall 11 of the handle 8
The mounting portion 1 to which the mounting screw 18 (see FIG. 12) is tightened when the handle 8 is in the off state in the body 3 portion below the mounting portion 1.
9 is provided, and a mounting screw 18 can be fitted into the mounting portion 19 and tightened with a screwdriver from the front F of the isolation wall 11. Further, a load-side terminal 5 is arranged in a portion of the container body 3 located on the rear side B of the base end of the handle 8. The load-side terminal 5 has a terminal plate 5a attached to the body 3 by a mounting screw 20, and one end of the terminal plate 5a has a base end portion of the insertion blade 7 rotatably supported. Blade support 2
1 is provided, and a terminal screw 22 for electrically connecting an external electric wire connected to the load side is provided at the other end of the terminal plate 5a.
【００１６】しかして、接地側端子４に電気的に接続さ
れた受刃６に、負荷側端子５に電気的に接続された差込
刃７を差し込む両面接触構造を採用したから、従来の接
点方式と比べて、構造を簡略化できると共に、接触面積
が大きくなり、大容量であっても従来のような接点溶着
は起こらず、接触信頼性を確保するのが容易となる。ま
た負荷側端子５に接続される方を絶縁部材であるハンド
ル８で覆うことによって、ハンドル８をオフにしたとき
でも充電部が露出せず、充電部保護により安全に操作で
き、しかも、差込刃７は絶縁材料から成るハンドル８内
に収納保持されているので、ハンドル８が差込刃７の絶
縁部材を兼ねることができ、部品点数の増加を防止でき
ると共に、ハンドル８内で差込刃７を受刃６に差し込む
ので、機能、性能を満足できる最小寸法にでき、ニュー
トラルスイッチ１の大容量化を図りつつ、コンパクト化
を実現できる。またハンドル８の保持部材９の連結部材
９ｂを負荷側端子５と器体３との間に挟んで止めること
できるので、保持部材９を取付ネジ等を用いずに器体３
に簡単に取着することができ、組立性も向上する。尚、
ハンドル８とは別に差込刃７を絶縁するための絶縁部材
を設けるようにしてもよいが、器体３のコンパクト化、
部品点数の増加防止を図る観点から、ハンドル８を絶縁
部材として兼用するのが好ましい。However, since the double-sided contact structure in which the insert blade 7 electrically connected to the load side terminal 5 is inserted into the receiving blade 6 electrically connected to the ground side terminal 4, the conventional contact point is adopted. Compared with the method, the structure can be simplified, the contact area becomes large, and even with a large capacity, contact welding unlike the conventional case does not occur, and it becomes easy to secure contact reliability. Further, by covering the one connected to the load side terminal 5 with the handle 8 which is an insulating member, the charging part is not exposed even when the handle 8 is turned off, and the charging part is protected so that the charging part can be operated safely. Since the blade 7 is housed and held in the handle 8 made of an insulating material, the handle 8 can also serve as an insulating member of the insert blade 7, and can prevent an increase in the number of parts, and the insert blade in the handle 8 can be prevented. Since 7 is inserted into the receiving blade 6, it is possible to make the size of the neutral switch 1 to the minimum size that can satisfy the function and performance, and to realize the compactness while increasing the capacity of the neutral switch 1. Further, since the connecting member 9b of the holding member 9 of the handle 8 can be fixed by being sandwiched between the load side terminal 5 and the body 3, the holding member 9 can be attached to the body 3 without using a mounting screw or the like.
It can be easily attached and the assemblability is improved. still,
An insulating member for insulating the insert blade 7 may be provided separately from the handle 8, but the body 3 is made compact,
From the viewpoint of preventing an increase in the number of parts, it is preferable that the handle 8 also serves as an insulating member.
【００１７】また、ハンドル８をオン状態にしたとき、
ハンドル８に設けた隔離壁１１によって、差込刃７を受
刃６に差し込んだ状態で器体３に当接して受刃６に対す
る差込刃７の差し込み量を規制するようにしたから、隔
離壁１１が器体３に当接した状態でオン状態となり、ハ
ンドル８のオン位置を明確にできると共に、隔離壁１１
によって受刃６の側面を外部から隔離できるので、受刃
６が外部に露出するのが防がれ、見栄えも良くなる。When the handle 8 is turned on,
With the isolation wall 11 provided on the handle 8, the insertion blade 7 is inserted into the receiving blade 6 and abuts against the body 3 to regulate the insertion amount of the insertion blade 7 with respect to the receiving blade 6. When the wall 11 is in contact with the body 3, it is turned on, so that the on position of the handle 8 can be clarified, and the isolation wall 11
Since the side surface of the receiving blade 6 can be isolated from the outside, the receiving blade 6 can be prevented from being exposed to the outside and the appearance can be improved.
【００１８】一方、ハンドル８をオフ状態にした場合に
おいて、ハンドル８と保持部材９の幅が略同一とされ、
ハンドル８の両側の隔離壁１１の側端面に内方から外方
になる程下になるように傾斜した下向き傾斜部１３を夫
々形成し、ハンドル８の両側の保持部材９の上端面に内
方から外方になる程上になるように傾斜した上向き傾斜
部１４を夫々形成したので、保持部材９は常にハンドル
８側に付勢されることとなり、ハンドル８をオフ操作し
たときに、その勢いによって保持部材９が外側に撓むの
を防止でき、ハンドル８の保持を確実にできる。しか
も、上記隔離壁１１の下方の器体３部分に取着ネジ１８
が締め付けられる取付部１９が設けられているので、こ
のオフ状態で器体３の取付部１９に取着ネジ１８を嵌め
込み、隔離壁１１の前方Ｆからドライバーを挿入して取
着ネジ１８を締め付けることが可能となる。そのうえハ
ンドル操作をする際に、接地側端子４はハンドル８の先
端側であって、ハンドル８のオン状態でハンドル８の下
面よりも低い位置に配設されているから、ハンドル８の
先端と接地側端子４との絶縁間隔を広くとることがで
き、ハンドル８が一層操作し易くなり、操作性が向上す
るという利点もある。On the other hand, when the handle 8 is turned off, the handle 8 and the holding member 9 have substantially the same width,
On the side end faces of the isolation walls 11 on both sides of the handle 8, downwardly inclined portions 13 are formed so as to incline so as to become lower from the inner side to the outer side. Since each of the upward slopes 14 is formed so as to become higher toward the outside, the holding member 9 is always biased toward the handle 8 side, and when the handle 8 is turned off, the momentum is increased. Thus, the holding member 9 can be prevented from bending outward, and the handle 8 can be reliably held. Moreover, a mounting screw 18 is attached to the portion of the body 3 below the isolation wall 11.
Since the mounting portion 19 for tightening is attached, the mounting screw 18 is fitted into the mounting portion 19 of the body 3 in this off state, and the driver is inserted from the front F of the isolation wall 11 to tighten the mounting screw 18. It becomes possible. In addition, when the handle is operated, the ground-side terminal 4 is located at the tip end side of the handle 8 and at a position lower than the lower surface of the handle 8 when the handle 8 is on. There is also an advantage that the insulation distance from the side terminal 4 can be widened, the handle 8 can be operated more easily, and the operability is improved.
【００１９】次に、上記ニュートラルスイッチ１を分電
盤２に設置する一例を説明する。図１０は分電盤２の上
部中央に主幹ブレーカ３０を配置し、この主幹ブレーカ
３０により開閉される単相３線の中性線（Ｎ）の導電バ
ー３１及び他の２線（Ｌ 1 ，Ｌ2 ）の導電バー３２とを
主幹ブレーカ３０の下方へ向けて延設し、導電バー３２
の両側に分岐回路用分岐ブレーカを接続し、導電バー３
１にニュートラルスイッチ１を接続した状態を示してい
る。Next, the neutral switch 1 is divided into
An example of installation on the board 2 will be described. Figure 10 is on the distribution board 2
The main breaker 30 is placed in the center of this section.
Conductive bar of single-phase three-wire neutral wire (N) opened and closed by 30
-31 and the other two wires (L 1, LTwo) Conductive bar 32
The conductive bar 32 extends downward from the main breaker 30.
Connect branch breakers for branch circuits to both sides of the
1 shows the state in which the neutral switch 1 is connected.
You.
【００２０】本実施例では図１１乃至図１４に示すよう
に、ニュートラルスイッチ１の器体３の長手方向の２箇
所に、導電バー３１を構成する断面略Ｃ形状の機器取付
板３１ａに取着するための切溝３３が逆Ｌ字状に夫々対
向するように形成してある。機器取付板３１ａは、平板
状の底板３１ｂと、底板３１ｂの両側端から立ち上がる
一対の立上り部３１ｃと、各立上り部３１ｃの上端から
互いに近接する方向に夫々突出する一対の内向きつば部
３１ｄとで構成されており、一方、切溝３３は、前記立
上り部３１ｃが嵌め込まれる垂直溝部３３ａと、内向き
つば部３１ｄが嵌め込まれる水平溝部３３ｂとで構成さ
れている。そして、この機器取付板３１ａを各切溝３３
に嵌め込むことによって器体３を機器取付板３１ａに簡
易に取付けることができ、また複数の器体３が１つの機
器取付板３１ａにまとめて取着可能となる。また切溝３
３の垂直溝部３３ａの溝幅を狭くすることで器体３を機
器取付板３１ａから外れ難くすることができる。さらに
機器取付板３１ａの底板３１ｂの略中央には分電盤２に
取着するための取着ネジ４０（図１２）が取着されると
共に、一方、底板３１ｂの略中央位置と対向する器体３
部分には、機器取付板３１ａの取着ネジ４０の頭部４０
ａが挿通する挿通溝４１が形成されており、この挿通溝
４１によって機器取付板３１ａに器体３を挿通させると
きに、機器取付板３１ａの取着ネジ４０の頭部４０ａが
邪魔にならず、器体３を機器取付板３１ａに取着するの
が容易となり、分電盤２へのニュートラルスイッチ１の
取付けを支障なく行えるものである。In this embodiment, as shown in FIG. 11 to FIG. 14, the neutral switch 1 is attached to the equipment mounting plate 31a having a substantially C-shaped cross section which constitutes the conductive bar 31 at two positions in the longitudinal direction of the body 3. The cut grooves 33 for doing so are formed so as to face each other in an inverted L shape. The device mounting plate 31a includes a flat plate-shaped bottom plate 31b, a pair of rising portions 31c rising from both side ends of the bottom plate 31b, and a pair of inward flange portions 31d projecting from the upper ends of the rising portions 31c in the directions approaching each other. On the other hand, the cut groove 33 is composed of a vertical groove portion 33a into which the rising portion 31c is fitted and a horizontal groove portion 33b into which the inward flange portion 31d is fitted. Then, the device mounting plate 31a is attached to each of the cut grooves 33.
The device body 3 can be easily attached to the device mounting plate 31a by fitting the device body 3 into the device mounting plate 31a, and a plurality of device bodies 3 can be collectively attached to one device mounting plate 31a. Also cut groove 3
By narrowing the groove width of the vertical groove portion 33a of 3, the body 3 can be made difficult to come off from the device mounting plate 31a. Further, an attachment screw 40 (FIG. 12) for attaching to the distribution board 2 is attached to substantially the center of the bottom plate 31b of the device mounting plate 31a, and on the other hand, a device facing the substantially center position of the bottom plate 31b. Body 3
In the portion, the head 40 of the attachment screw 40 of the device mounting plate 31a
An insertion groove 41 through which a is inserted is formed, and when the body 3 is inserted into the device mounting plate 31a by this insertion groove 41, the head portion 40a of the attachment screw 40 of the device mounting plate 31a does not get in the way. It becomes easy to attach the body 3 to the device mounting plate 31a, and the neutral switch 1 can be mounted on the distribution board 2 without any trouble.
【００２１】[0021]
【発明の効果】上述のように、請求項１の発明は、器体
に設けられた接地側端子及び負荷側端子のいずれか一方
に受刃が電気的に接続され、いずれか他方に受刃に接離
自在に対向する差込刃が電気的に接続され、差込刃を受
刃に接離させるハンドルが器体に取着された保持部材に
て開閉自在に保持されると共に、少なくとも負荷側端子
に電気的に接続される受刃又は差込刃の一方を刃部を除
いて絶縁部材にて被覆されて成るから、従来のような複
雑なスイッチ機構が不要となり、構造を簡略化できると
共に、大容量の場合でも、従来のような接点溶着という
問題は起こらず、また負荷側端子に電気的に接続される
受刃又は差込刃の一方を絶縁部材にて被覆することで、
ハンドルをオフにしたときでも充電部が露出せず、安全
な操作を行えると共に、受刃と差込刃との両面接触構造
によって、従来の接点方式と比較して接触面積が大きく
なり、接触信頼性を確保でき、大容量化を図るのが容易
なニュートラルスイッチを得ることができる。As described above, according to the invention of claim 1, the blade is electrically connected to one of the ground side terminal and the load side terminal provided on the body, and the other side is connected to the blade. The insert blades facing each other are electrically connected to each other, and the handle for bringing the insert blades into and out of contact with the receiving blade is openably and closably held by the holding member attached to the body, and at least the load is applied. Since either the receiving blade or the inserting blade electrically connected to the side terminal is covered with an insulating member except for the blade portion, a complicated switch mechanism as in the past is not required and the structure can be simplified. Along with, even in the case of a large capacity, the problem of conventional contact welding does not occur, and by covering one of the receiving blade or the inserting blade electrically connected to the load side terminal with an insulating member,
Even when the handle is turned off, the charging part is not exposed and safe operation is possible, and due to the double-sided contact structure between the receiving blade and the insert blade, the contact area is larger than the conventional contact method, and contact reliability is improved. It is possible to obtain a neutral switch that secures the property and is easy to increase the capacity.
【００２２】請求項２の発明は、請求項１の負荷側端子
に差込刃を電気的に接続し、この差込刃を絶縁部材を構
成するハンドル内に収納保持したから、請求項１記載の
効果に加えて、ハンドルが差込刃の絶縁部材を兼ねるこ
とにより、部品点数の増加を防止できると共に、ハンド
ル内で差込刃を受刃に差し込むので、機能、性能を満足
できる最小寸法にでき、ニュートラルスイッチの大容量
化を図りつつ、一層のコンパクト化を実現できる。According to a second aspect of the present invention, an insert blade is electrically connected to the load-side terminal of the first aspect, and the insert blade is housed and held in a handle forming an insulating member. In addition to the effect of, the handle also serves as an insulating member for the insert blade, so that the number of parts can be prevented from increasing and the insert blade is inserted into the receiving blade in the handle, so the minimum size that can satisfy the function and performance is achieved. Therefore, it is possible to realize a further compact size while increasing the capacity of the neutral switch.
【００２３】請求項３の発明は、請求項１のハンドル又
は器体の一方に、差込刃を受刃に差し込んだ状態で受刃
の側面を外部から隔離するための隔離壁を設けたから、
請求項１記載の効果に加えて、隔離壁によって受刃の側
面を外部から隔離でき、受刃が外部に露出するのが防が
れ、見栄えも良くなる。請求項４の発明は、請求項１の
隔離壁をハンドルに設けると共に、ハンドルを器体に対
して略直交して起立させた状態で隔離壁の下方の器体部
分に取付ネジが締め付けられる取付部を設けたから、請
求項３記載の効果に加えて、ハンドルのオフ状態で器体
の取付部に取付ネジを嵌め込み、隔離壁の前方からドラ
イバーを挿入して取付ネジを締め付けることが可能とな
る。According to the third aspect of the invention, one of the handle and the body of the first aspect is provided with an isolation wall for isolating the side surface of the receiving blade from the outside in a state where the inserting blade is inserted into the receiving blade.
In addition to the effect of the first aspect, the side wall of the receiving blade can be isolated from the outside by the isolation wall, the receiving blade is prevented from being exposed to the outside, and the appearance is improved. According to a fourth aspect of the present invention, the isolation wall according to the first aspect is provided on the handle, and a mounting screw is fastened to the body portion below the isolation wall in a state where the handle is erected substantially orthogonal to the body. Since the portion is provided, in addition to the effect of claim 3, it is possible to fit the mounting screw into the mounting portion of the body when the handle is off, and insert the driver from the front of the isolation wall to tighten the mounting screw. .
【００２４】請求項５の発明は、請求項１の接地側端子
をハンドルの先端側であって、ハンドルを器体に対して
略平行となる方向に倒した状態でハンドルの下面よりも
低い位置に配設したから、請求項１記載の効果に加え
て、ハンドルのオン状態でハンドルの先端と接地側端子
との絶縁間隔を広くとることができ、ハンドルが一層操
作し易くなり、操作性の向上を図ることができる。According to a fifth aspect of the present invention, the ground side terminal of the first aspect is located at a position lower than the lower surface of the handle on the tip side of the handle and in a state in which the handle is tilted in a direction substantially parallel to the body. In addition to the effect according to claim 1, the insulation distance between the tip of the handle and the ground-side terminal can be widened in the ON state of the handle, which makes the handle easier to operate and improves the operability. It is possible to improve.
【００２５】請求項６の発明は、請求項１のハンドルの
保持部材を接地側端子又は負荷側端子の一方と器体との
間に挟持させたから、請求項１記載の効果に加えて、取
付ネジ等を用いることなく、保持部材を器体に簡単に取
着でき、ニュートラルスイッチの組立て性が向上する。
請求項７の発明は、請求項１のハンドル又は器体の一方
に、差込刃を受刃に差し込んだ状態で器体に当接して受
刃に対する差込刃の差し込み量を規制するための差込規
制部を設けたから、請求項１記載の効果に加えて、差込
刃を受刃に差し込んだ状態で差込規制部が受刃に対する
差込刃の差し込み量を規制することによって、ハンドル
のオン位置を明確にできるようになる。According to the invention of claim 6, since the holding member of the handle of claim 1 is sandwiched between one of the ground side terminal or the load side terminal and the body, mounting is provided in addition to the effect of claim 1. The holding member can be easily attached to the body without using screws or the like, and the assemblability of the neutral switch is improved.
According to a seventh aspect of the present invention, one of the handle and the body of the first aspect is for abutting against the body in a state where the blade is inserted into the receiving blade to regulate the insertion amount of the inserting blade with respect to the receiving blade. Since the insertion regulation portion is provided, in addition to the effect according to claim 1, the insertion regulation portion regulates the insertion amount of the insertion blade with respect to the receiving blade in a state where the insertion blade is inserted into the receiving blade, and thus the handle You will be able to clarify the on position of.
【００２６】請求項８の発明は、請求項１のハンドルと
保持部材の幅を略同一とし、ハンドルの両側に内方から
外方になる程下になるように傾斜した下向き傾斜部を形
成すると共に、ハンドルの両側に当接する保持部材の両
側に夫々内方から外方になる程上になるように傾斜した
上向き傾斜部を形成したから、請求項１記載の効果に加
えて、上記各傾斜部によって保持部材は常にハンドル側
に付勢されることとなり、ハンドルをオフ操作したとき
に、その勢いによって保持部材が外側に撓むのを防止で
き、ハンドルを確実に保持することができる。According to an eighth aspect of the present invention, the handle and the holding member according to the first aspect have substantially the same width, and downwardly inclined portions are formed on both sides of the handle so as to incline downward from the inside to the outside. At the same time, since the upwardly inclined portions are formed on both sides of the holding member that abuts on both sides of the handle so as to increase from the inner side to the outer side, in addition to the effect according to claim 1, The holding member is always urged toward the handle by the portion, so that when the handle is turned off, the holding member can be prevented from being bent outward, and the handle can be held reliably.
【００２７】請求項９の発明は、請求項１の器体の長手
方向の少なくとも２箇所に、機器取付板に取着するため
の切溝を逆Ｌ字状に夫々対向するように形成したから、
請求項１記載の効果に加えて、例えば断面略Ｃ形状の機
器取付板に対して器体を容易に且つ安定して嵌め込むこ
とができると共に、機器取付板を長手形状とすることで
複数の器体を１つの機器取付板に取着可能となり、機器
取付板へのニュートラルスイッチの取付け作業を簡略化
できる。According to the invention of claim 9, the cut grooves for attaching to the device mounting plate are formed at least at two positions in the longitudinal direction of the container of claim 1 so as to face each other in an inverted L shape. ,
In addition to the effect of claim 1, the body can be easily and stably fitted into, for example, a device mounting plate having a substantially C-shaped cross section, and a plurality of device mounting plates can be formed by using a longitudinal shape. The body can be attached to one device mounting plate, and the work of mounting the neutral switch on the device mounting plate can be simplified.
【００２８】請求項１０の発明は、請求項９の機器取付
板の略中央位置と対向する器体部分に、機器取付板の取
着ネジの頭部が挿通する挿通溝を設けたから、請求項９
記載の効果に加えて、機器取付板に器体を挿通させると
きに、挿通溝に機器取付板の取着ネジの頭部が入り込む
ことで、取着ネジの頭部が器体を取着する際に邪魔にな
らず、器体を機器取付板に取着するのが一層容易とな
る。According to a tenth aspect of the present invention, an insertion groove into which the head of the attachment screw of the device mounting plate is inserted is provided in the body portion facing the substantially central position of the device mounting plate of the ninth aspect. 9
In addition to the effects described, when inserting the body into the equipment mounting plate, the head of the attachment screw of the equipment mounting plate enters the insertion groove, and the head of the attachment screw attaches the body. In this case, it is easier to attach the body to the device mounting plate without getting in the way.
【図１】本発明の一実施例のニュートラルスイッチの分
解斜視図である。FIG. 1 is an exploded perspective view of a neutral switch according to an embodiment of the present invention.
【図２】同上のニュートラルスイッチの斜視図である。FIG. 2 is a perspective view of the above neutral switch.
【図３】（ａ）は同上のニュートラルスイッチの側面図
であり、（ｂ）はハンドルを省略した平面図である。FIG. 3 (a) is a side view of the neutral switch of the above, and FIG. 3 (b) is a plan view with a handle omitted.
【図４】（ａ）は同上のニュートラルスイッチの断面
図、（ｂ）は（ａ）の矢印Ｃから見た側面図、（ｃ）は
（ａ）のＡ−Ａ線断面図、（ｄ）は（ａ）のＢ−Ｂ線断
面図である。4A is a cross-sectional view of the neutral switch of the above, FIG. 4B is a side view seen from an arrow C in FIG. 4A, FIG. 4C is a cross-sectional view taken along line AA of FIG. 4A, and FIG. FIG. 7A is a sectional view taken along line BB of FIG.
【図５】（ａ）は同上の差込刃と受刃の開極状態を示す
側面図、（ｂ）は差込刃と受刃の閉極状態を示す側面図
である。FIG. 5A is a side view showing an open state of the insert blade and the receiving blade, and FIG. 5B is a side view showing a closed state of the insert blade and the receiving blade.
【図６】同上のハンドルと保持部材の傾斜部付近の要部
断面図である。FIG. 6 is a cross-sectional view of a main part in the vicinity of an inclined portion of the handle and the holding member of the above.
【図７】（ａ）〜（ｆ）は同上のハンドルの側面図、平
面図、正面図、背面図、底面図及び要部拡大図である。7A to 7F are a side view, a plan view, a front view, a rear view, a bottom view and an enlarged view of a main part of the above handle.
【図８】（ａ）（ｂ）は同上のハンドルの側面断面図及
び平面断面図である。8 (a) and 8 (b) are a side sectional view and a plan sectional view of the above handle.
【図９】（ａ）〜（ｃ）は同上の保持部材の側面断面
図、正面図及び背面図である。9A to 9C are a side sectional view, a front view and a rear view of the holding member of the above.
【図１０】同上のニュートラルスイッチを設置する分電
盤の正面図である。FIG. 10 is a front view of a distribution board on which the above neutral switch is installed.
【図１１】同上のニュートラルスイッチを機器取付板に
取付けた状態の斜視図である。FIG. 11 is a perspective view showing a state in which the above neutral switch is attached to a device mounting plate.
【図１２】同上のニュートラルスイッチを機器取付板に
取付けた状態の断面図である。FIG. 12 is a cross-sectional view showing a state in which the above neutral switch is attached to a device mounting plate.
【図１３】同上のハンドルがオフ状態のときの断面図で
ある。FIG. 13 is a cross-sectional view when the handle of the above is in an off state.
【図１４】（ａ）〜（ｃ）は同上の器体の側面図、平面
図及び底面図である。14 (a) to (c) are a side view, a plan view and a bottom view of the same container.
【図１５】（ａ）（ｂ）は従来の分電盤用スイッチの動
作説明図である。15 (a) and 15 (b) are operation explanatory views of a conventional switch for a distribution board.
３ 器体 ４ 接地側端子 ５ 負荷側端子 ６ 受刃 ７ 差込刃 ８ ハンドル ９ 保持部材 １１ 隔離壁 １３ 下向き傾斜部 １４ 上向き傾斜部 １８ 取付ネジ １９ 取付部 ３１ａ 機器取付板 ３３ 切溝 ４０ 取着ネジ ４０ａ 頭部 ４１ 挿通溝 3 Body 4 Ground-side terminal 5 Load-side terminal 6 Receiving blade 7 Inserting blade 8 Handle 9 Holding member 11 Isolation wall 13 Downward sloping portion 14 Upward sloping portion 18 Mounting screw 19 Mounting portion 31a Equipment mounting plate 33 Cutting groove 40 Attachment Screw 40a Head 41 Insertion groove
Claims (10)
接地側と負荷側との間を電気的に開閉するニュートラル
スイッチにおいて、器体に設けられた接地側端子及び負
荷側端子のいずれか一方に受刃が電気的に接続され、い
ずれか他方に受刃に接離自在に対向する差込刃が電気的
に接続され、差込刃を受刃に接離させるハンドルが器体
に取着された保持部材にて開閉自在に保持されると共
に、少なくとも負荷側端子に電気的に接続される受刃又
は差込刃の一方を刃部を除いて絶縁部材にて被覆されて
成ることを特徴とするニュートラルスイッチ。1. Interposing between the ground side and the load side of the electric circuit,
In a neutral switch that electrically opens and closes between the ground side and the load side, the blade is electrically connected to either the ground side terminal or the load side terminal provided on the body, and the other side is connected to the other side. An insert blade facing the blade so as to come into contact with and away from the blade is electrically connected, and a handle for bringing the insert blade into contact with and away from the receiving blade is openably and closably held by a holding member attached to the body, and at least A neutral switch, characterized in that one of a receiving blade and an inserting blade electrically connected to a load side terminal is covered with an insulating member except for a blade portion.
この差込刃を絶縁部材を構成するハンドル内に収納保持
したことを特徴とする請求項１記載のニュートラルスイ
ッチ。2. An insert blade is electrically connected to the load side terminal,
2. The neutral switch according to claim 1, wherein the insert blade is housed and held in a handle forming an insulating member.
刃に差し込んだ状態で受刃の側面を外部から隔離するた
めの隔離壁を設けたことを特徴とする請求項１記載のニ
ュートラルスイッチ。3. The isolation wall for isolating the side surface of the blade from the outside in a state where the blade is inserted in the blade, on one of the handle and the body. Neutral switch.
ドルを器体に対して略直交して起立させた状態で隔離壁
の下方の器体部分に取付ネジが締め付けられる取付部を
設けたことを特徴とする請求項３記載のニュートラルス
イッチ。4. An isolation wall is provided on the handle, and an attachment portion for fastening an attachment screw is provided on an instrument portion below the isolation wall in a state where the handle is erected substantially orthogonal to the instrument body. The neutral switch according to claim 3, which is characterized in that.
て、ハンドルを器体に対して略平行となる方向に倒した
状態でハンドルの下面よりも低い位置に配設したことを
特徴とする請求項１記載のニュートラルスイッチ。5. The ground-side terminal is disposed at a position lower than the lower surface of the handle on the tip side of the handle and in a state in which the handle is tilted in a direction substantially parallel to the body. The neutral switch according to claim 1.
荷側端子の一方と器体との間に挟持させたことを特徴と
する請求項１記載のニュートラルスイッチ。6. The neutral switch according to claim 1, wherein the holding member of the handle is sandwiched between one of the ground side terminal or the load side terminal and the body.
刃に差し込んだ状態で器体に当接して受刃に対する差込
刃の差し込み量を規制するための差込規制部を設けたこ
とを特徴とする請求項１記載のニュートラルスイッチ。7. An insertion regulating portion is provided on one of the handle and the body for abutting against the body with the blade inserted into the receiving blade to regulate the amount of insertion of the blade with respect to the receiving blade. The neutral switch according to claim 1, wherein the neutral switch is provided.
ハンドルの両側に内方から外方になる程下になるように
傾斜した下向き傾斜部を形成すると共に、ハンドルの両
側に当接する保持部材の両側に夫々内方から外方になる
程上になるように傾斜した上向き傾斜部を形成したこと
を特徴とする請求項１記載のニュートラルスイッチ。8. The handle and the holding member have substantially the same width,
Formed on both sides of the handle are downward sloping portions that slope downward from the inside to the outside, and on both sides of the holding member that abuts on both sides of the handle, the top is increased from the inside to the outside. 2. The neutral switch according to claim 1, wherein the upwardly inclined portion is inclined as described above.
機器取付板に取着するための切溝を逆Ｌ字状に夫々対向
するように形成したことを特徴とする請求項１記載のニ
ュートラルスイッチ。9. At least two locations in the longitudinal direction of the body,
2. The neutral switch according to claim 1, wherein cut grooves for attaching to the device mounting plate are formed so as to face each other in an inverted L shape.
体部分に、機器取付板の取着ネジの頭部が挿通する挿通
溝を設けたことを特徴とする請求項９記載のニュートラ
ルスイッチ。10. The neutral switch according to claim 9, wherein an insertion groove into which the head of the attachment screw of the device mounting plate is inserted is provided in the body portion facing the substantially central position of the device mounting plate. .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16081495A JP3612800B2 (en) | 1995-06-27 | 1995-06-27 | Neutral switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16081495A JP3612800B2 (en) | 1995-06-27 | 1995-06-27 | Neutral switch |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0917282A true JPH0917282A (en) | 1997-01-17 |
| JP3612800B2 JP3612800B2 (en) | 2005-01-19 |
Family
ID=15723005
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16081495A Expired - Lifetime JP3612800B2 (en) | 1995-06-27 | 1995-06-27 | Neutral switch |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3612800B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108808623A (en) * | 2018-06-28 | 2018-11-13 | 安徽省欧球信息技术有限公司 | A kind of household electrical appliance leakage protection circuit |
| CN111312550A (en) * | 2019-11-01 | 2020-06-19 | 贵州电网有限责任公司 | Switching formula ground connection isolation switch |
-
1995
- 1995-06-27 JP JP16081495A patent/JP3612800B2/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108808623A (en) * | 2018-06-28 | 2018-11-13 | 安徽省欧球信息技术有限公司 | A kind of household electrical appliance leakage protection circuit |
| CN111312550A (en) * | 2019-11-01 | 2020-06-19 | 贵州电网有限责任公司 | Switching formula ground connection isolation switch |
| CN111312550B (en) * | 2019-11-01 | 2021-11-12 | 贵州电网有限责任公司 | Switching formula ground connection isolation switch |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3612800B2 (en) | 2005-01-19 |
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