JP3539266B2

JP3539266B2 - Electricity meter storage panel

Info

Publication number: JP3539266B2
Application number: JP07292999A
Authority: JP
Inventors: 芳三金平; 亘永野; 剛矢野
Original assignee: Matsushita Electric Works Ltd
Current assignee: Panasonic Electric Works Co Ltd
Priority date: 1999-03-18
Filing date: 1999-03-18
Publication date: 2004-07-07
Anticipated expiration: 2019-03-18
Also published as: JP2000270421A

Description

【０００１】
【発明の属する技術分野】
本発明は、窓孔から一部を露出させた状態で電力量計を収納する電力量計収納盤に関するものである。
【０００２】
【従来の技術】
従来、主幹開閉器や分岐開閉器等のブレーカを配設する箱体のフリースペースに電力量計を収納するようにした分電盤が提供されている（例えば、特開平９−１６３５２１号公報参照）。このものにおいては、箱体の上記フリースペースの前面側に大径及び小径のノックアウト孔を有するカバーが取着され、電力量計の寸法に応じた大径又は小径のノックアウト孔を形成してそのノックアウト孔から電力量計の一部（すなわち、電力量支持部が見える電力量計前面）を露出させるようになっている。なお、ノックアウト孔は平板状のカバーの一端側に近接して設けてあり、この一端側を下端としてカバーが箱体に取着される。
【０００３】
また、収納盤本体の平坦な前面に寸法の大きい電力量計に対応した窓孔を形成し、寸法の小さい電力量計に対応した露出孔を有する窓枠を上記窓孔に着脱自在に取着することで上記課題を解決するようにした電力量計収納盤が既に提案されている。かかる電力量計収納盤にあっては、窓枠が窓孔の周縁部の前面に一部が重なる形で窓孔周縁内部に引っ掛けて取着される。なお、箱体下部のブレーカの配線スペースを大きく確保するために、なるべく箱体上部に電力量計を配置する必要があり、そのために窓枠の上端から露出孔までの距離が一番近接する形に形成されている。
【０００４】
【発明が解決しようとする課題】
上記従来例では、カバーや窓枠を窓孔に対して上下逆に取着することがあり、しかも上下逆に取着されていることが判り難い場合があった。
【０００５】
本発明は上記問題に鑑みて為されたものであり、その目的とするところは、窓枠を誤った向きに取着するのを防止できる電力量計収納盤を提供することにある。
【０００６】
【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、前面に開口する複数の窓孔から一部を露出させた状態で複数の電力量計を収納する収納盤本体と、収納盤本体前面における窓孔の周縁部位に収納盤本体の内側に落ち込む形で設けられた凹部と、電力量計の一部を露出する露出孔を有し背面側を凹部に挿入する形で着脱自在に窓孔に嵌着される複数の窓枠とを備え、収納盤本体の前面における窓孔の周縁部位に、窓孔に向かって収納盤本体の内側に傾斜する傾斜面を形成し、窓孔を挟んで対向する少なくとも一対の傾斜面の傾斜角度を互いに異ならせるとともに、窓孔に嵌着された状態で窓孔の周縁部位の傾斜面と略同一角度で傾斜する少なくとも一対の傾斜面を窓枠の前面における露出孔の周縁部位であって露出孔を挟んで対向する周縁部位に形成するとともに、収納盤本体の前面におけるそれぞれの窓孔の周縁部位の傾斜面形状を略同形状として成ることを特徴とし、窓枠を窓孔周縁に誤った向きに取着すると窓孔周縁近傍の傾斜面と窓枠の露出孔周縁近傍の傾斜面との角度が異なることとなり、窓枠を誤った向きに取着していることが容易に判断できる。その結果、窓枠を誤った向きに取着するのを防止できる。しかも、収納盤本体に複数台の電力量計を収納する場合に何れの窓孔にも同じ窓枠を取り付けることができ、窓枠の共通化が図れて製造作業が容易になるとともに製造コストが抑制できる。
【０００８】
【発明の実施の形態】
以下、図１〜図１７を参照して本発明の一実施形態を詳細に説明する。
【０００９】
本実施形態の電力量計収納盤は、前面に開口する窓孔２１から一部を露出させた状態で電力量計６０を収納する収納盤本体と、電力量計６０の一部を露出する露出孔３１を有し窓孔２１の周縁に着脱自在に取り付けられる窓枠３０とを備えている。
【００１０】
収納盤本体は、絶縁性を有する合成樹脂製のベース１とカバー２０とで構成される。ベース１は、前面に電力量計６０が取着されるとともに電力量計６０に接続される電線４０を背面側から前面側に挿通する電線挿通孔４を有する矩形板状のベース本体２と、ベース本体２の周縁から背面側に垂設される板状の周壁部３と、ベース本体２を壁面のような造営面に取り付けるための取付ねじ（図示せず）が挿通されるねじ挿通孔５を有しベース本体２四隅の背面から周壁部３先端と略同一位置まで突出する略円筒形のボス部６とが一体に形成されている。また、ベース本体２の前面周縁には背面側に後退する段部７が全周にわたって形成されるとともに、ベース本体２前面のねじ挿通孔５周縁には少なくともボス部６の先端部の外形寸法よりも小さくない内径を有し且つ段部７と略同一寸法だけ背面側へ後退した平面視略円形の嵌合部８が形成してある。さらに、ベース本体２の中央上部にはだるま孔２ａが設けてあり、造営面に取り付けたねじ（図示せず）の頭部をこのだるま孔２ａに係止してベース１を仮止めすることができる。そして、仮止めされたベース１の４カ所のねじ挿通孔５に各々取付ねじを挿通し、これら４本の取付ねじによりベース１が造営面に固定される。
【００１１】
ここで、図６に示すような略円筒形の隠し部材１３がそれぞれ嵌合部８に着脱自在に嵌着される。隠し部材１３の上部周縁には突起１３ａが突設されるとともに下部前面には位置決め用の印１３ｂが形成されている。そして、嵌合部８の上部周面には突起１３ａを逃がすための逃げ部８ａが凹設されるとともに嵌合部８下方のベース本体２前面には隠し部材１３の印１３ｂに対応する位置決め用の印８ｂが形成してある。而して、印１３ｂ、８ｂを一致させることで隠し部材１３を嵌合部８に容易に位置決めして嵌合させることができ、隠し部材１３を嵌合して嵌合部８を塞ぐことで取付ねじの頭部がベース１の前面から見えなくなり、見栄えを良くすることができる。また、隠し部材１３を嵌合部８から取り外すときには、突起１３ａと逃げ部８ａとの隙間にマイナスドライバ等の治具を挿入してこじれば容易に取り外すことができる。
【００１２】
電力量計６０の下端側には電線４０が接続される端子部が設けられ、絶縁性を有する合成樹脂などから成る端子カバー６１によって上記端子部が覆われている。また、略Ｌ字状に折曲形成された取付金具６２が一端部において電力量計６０の上端面に溶着されている。ここで、取付金具６２のベース１と対向する面（電力量計６０の背面）にはだるま孔（図示せず）が形成されており、ベース本体２に形成された４つのねじ孔２ｂの何れかに螺合された固定ねじ（図示せず）の頭部が上記だるま孔に挿入係止される。また、ベース本体２には略へ字状のねじ挿通溝２ｃ，２ｃが設けてあり、ベース本体２の背面側からねじ挿通溝２ｃ、２ｃに挿通した固定ねじ（図示せず）を電力量計６０の背面に設けてあるねじ孔（図示せず）に螺合することでベース本体２の前面上部に電力量計６０が取着される。なお、上記４つのねじ孔２ｂの何れに固定ねじを螺合するかは電力量計６０の寸法に応じて決まる。
【００１３】
ベース本体２の前面下部に形成される電線挿通孔４は、中央壁４ａによって左右２つに分離されている。また、ベース本体２前面の電線挿通孔４，４の周縁にはベース本体２の背面側に後退する取付凹所９が形成されており、この取付凹所９に電線挿通孔カバー１０が嵌着される。電線挿通孔カバー１０は合成樹脂により矩形板状に形成され、左右の各電線挿通孔４，４に重なる位置に径が異なる２種類のノックアウト孔１０ａが各一対ずつ設けてある。また、ベース本体２の取付凹所９に形成された係止部９ａに係止される係止突起１０ｂが電線挿通孔カバー１０の上端面に４つ、下端面に２つずつ突設されており、これらの係止突起１０ｂを係止部９ａに係止することでベース本体２の取付凹所９に電線挿通孔カバー１０が着脱自在に嵌着される。なお、各一対のノックアウト孔１０ａに挟まれた電線挿通孔カバー１０の略中央部には、中央壁４ａの前面に突設された突条部４ｂが嵌合する長孔１０ｃが設けてある。
【００１４】
而して、ベース本体２の電線挿通孔４は電線４０の径に比べて充分大きい寸法に形成してあるから、電線４０が挿通された状態で電線挿通孔４には余分な隙間が生じてゴミや埃などが内部に侵入する虞があるが、電線挿通孔カバー１０によって電線挿通孔４の余分な隙間を塞ぐことでゴミや埃等の侵入を防ぐことができる。ここで、電線挿通孔４のノックアウト孔１０ａに電線４０を挿通するのであるが、比較的に径の大きい電線４０の場合には図４に示すように径の大きい方のノックアウト孔１０ａに挿通し、比較的に径の小さい電線４０の場合には図５に示すように径の小さい方のノックアウト孔１０ａに挿通すればよい。つまり、１種類の電線挿通孔カバー１０で径の異なる複数種類の電線４０に対応することができ、電線４０の径に対応した複数種類の電線挿通孔カバーを用意する必要が無くなってコストダウンが図れるものである。
【００１５】
一方カバー２０は、背面が開口する略箱形に形成されてベース１前面に取着されるものであり、前面上部には電力量計６０の一部が挿通されて露出する略矩形の窓孔２１が設けてある。カバー２０の上側開口端に一対の係止孔２２，２２が設けられ、下側面中央の開口端近傍からは固定ねじ（図示せず）が挿通される挿通孔２３ａを有する平面視略半円板状の突部２３が下方に突設されている。而して、ベース本体２の段部７にカバー２０の開口端縁を係合するようにしてベース１前面にカバー２０を被着すると、ベース本体２の上端側の段部７に突設されている係止突部１１，１１がカバー２０の係止孔２２，２２に挿入係止される。さらに、ベース１の周壁部３下側略中央に矩形板状の固定金具１２が一部を下方へ突出するようにして取着されており、カバー２０の突部２３が有する挿通孔２３ａに挿通された固定ねじを上記固定金具１２に穿孔されたねじ孔１２ａに螺合することでベース１とカバー２０が強固に固定される。
【００１６】
ところで、カバー２０前面の窓孔２１周縁には内側に落ち込む凹部２４が略全周にわたって設けてあり、この凹部２４に窓枠３０が着脱自在に取り付けられる。また、カバー２０前面の窓孔２１周縁近傍には窓孔２１に向かってカバー２０の内側に傾斜する傾斜面２５が形成され、このうち窓孔２１の上方に位置する傾斜面２５ａに対して窓孔２１の下方に位置する傾斜面２５ｂの傾斜角度を緩くしてある。
【００１７】
一方、窓枠３０は合成樹脂製であって電力量計６０の一部が挿通されて露出する矩形の露出孔３１を有し、前面には露出孔３１に向かって背面側に傾斜する傾斜面３２が形成され、露出孔３１を挟んで対向する一対の傾斜面３２ａ，３２ｂの傾斜角度がそれぞれカバー２０の窓孔２１周縁近傍の傾斜面２５ａ，２５ｂの傾斜角度に略一致させてある。また、窓枠３０の背面側周縁からはカバー２０の窓孔２１周縁に設けられた凹部２４に当接する板状の突出壁３３が背方に向けて垂設されるとともに、上下方向に対向する突出壁３３の両端近傍には凹部２４の先端部分に係止する係止爪３４ａを有する係止片３４がそれぞれ突出壁３３に沿って突設されている。なお、係止爪３４ａの先端部には窓枠３０の前面側に向かって外側へ傾斜するテーパ面３４ｂが形成されている。
【００１８】
而して、窓枠３０の背面側をカバー２０の窓孔２１に前方より挿入すると凹部２４の先端部に係止爪３４ａのテーパ面３４ｂが当接し、窓枠３０をカバー２０の方へ押し付けることでテーパ面３４ｂに沿って係止片３４が内側へ撓み、やがて凹部２４の先端部を係止爪３４ａが乗り越えて係止することによって窓枠３０が凹部２４に取り付けられ、カバー２０の窓孔２１に嵌着される（図７及び図１０参照）。なお、凹部２４と係止爪３４ａとの係止を解くことで窓枠３０をカバー２０から容易に取り外すことができる。
【００１９】
すなわち、電力量計６０の窓孔２１に挿通されて露出する部分の外形寸法が大きい場合には、窓枠３０を用いずにカバー２０の窓孔２１からそのまま電力量計６０の一部を挿通して露出させればよく、反対に電力量計６０の窓孔２１に挿通されて露出する部分の外形寸法が小さい場合には、図２に示すように窓孔２１に窓枠３０を取り付けて窓枠３０の露出孔３１に電力量計６０の一部を挿通して露出させればよい。このように窓枠３０をカバー２０の窓孔２１に着脱自在に取り付けることにより、寸法の異なる電力量計６０を自在に取り換えて見栄えよく収納することができる。しかも、露出孔３１を挟んで対向する一対の傾斜面３２ａ，３２ｂの傾斜角度がそれぞれカバー２０の窓孔２１周縁近傍の傾斜面２５ａ，２５ｂの傾斜角度に略一致させてあるので、図７に示すように窓孔２１に窓枠３０を取り付けた状態で窓枠３０の前面とカバー２０（収納盤本体）の前面とが面一となって両者の間に段差が生じず、従来例のように収納盤本体と窓枠との間に生じる段差にものが引っ掛かって窓枠が不用意に外れてしまうようなことを防ぐことができる。
【００２０】
ところで、窓枠３０は窓孔２１に対して上下逆向きに取り付けることも可能であるが、露出孔３１を挟んで対向する一対の傾斜面３２ａ，３２ｂの傾斜角度をそれぞれカバー２０の窓孔２１周縁近傍の傾斜角度が互いに異なる傾斜面２５ａ，２５ｂの傾斜角度に略一致させてあるから、窓枠３０を上下逆向きに取り付けた場合には、図１１に示すように窓孔２１の傾斜面２５ａ、２５ｂの傾斜角度と窓枠３０の傾斜面３２ａ，３２ｂの傾斜角度が一致しなくなり、窓枠３０を誤った向きに取り付けていることが容易に判断でき、窓枠３０が誤った向き（上下逆向き）に取り付けられるのを防ぐことができる。なお、窓枠３０に傾斜面３２ａ，３２ｂを形成することにより、平坦な場合に比較して窓枠３０の前面から背面にかけての厚み寸法が大きくなり、窓枠３０の強度が向上するという利点がある。
【００２１】
ところで、図１２に示すようにベース１’及びカバー２０’を左右方向に略２倍の寸法に形成するとともに同一形状の窓孔２１’，２１’をカバー２０’前面上部に並設して、２台の電力量計６０，６０が収納できるようにしてもよい。このように複数の電力量計６０を収納するようにすれば、１台の電力量計６０を収納する電力量計収納盤を複数台使用するよりもコストダウンが図れる。このとき、カバー２０’の各窓孔２１’，２１’周縁近傍に形成される傾斜面２５’の形状を同一形状とすれば、何れの窓孔２１’，２１’にも同じ窓枠３０を取り付けることができ、窓枠３０の共通化が図れて製造作業が容易になるとともに製造コストが抑制できるという利点がある。
【００２２】
ところで、ベース１が取り付けられる壁材のような造営材の厚みが小さく且つ電線４０の径が造営材の厚みに比較して大きい場合には、電線４０を造営材の孔から引き出す際に折曲し難く、電線４０をベース１の電線挿通孔４に挿通することができないことがある。このような場合に造営材の厚みを補うためにベース１と造営面との間にスペーサを介在させることも考えられるが、そうすると造営材の厚みに応じて予備のスペーサを一々作成しなければならず、スペーサ専用の金型が必要で製造コストがアップするという欠点がある。
【００２３】
そこで本実施形態では、ベース本体２の前面周縁に全周にわたって段部７を形成するとともに、ボス部６の先端部の外形寸法よりも小さくない内径を有し且つ段部７と略同一寸法だけ背面側へ後退した嵌合部８を形成している。すなわち、図１６及び１７に示すようにベース１の前面に他のベース１を重ね合わすと後方のベース１の段部７に前方のベース１の周壁部３が係合するとともに後方のベース１の嵌合部８に前方のベース１のボス部６の先端部が嵌合し、この状態で図１５に示すように各ベース１，１の電線挿通孔４に電線４０を挿通して前方のベース１に取着された電力量計６０に電線４０を接続することができる。故に、造営材の厚みが小さく且つ電線４０の径が造営材の厚みに比較して大きい場合であっても、ベース１，１を重ね合わせることで電線４０が折曲し易くなり、上述のようにスペーサ等の別部材を用いる必要がなく、コストをアップせずに厚みの小さい造営面にも対応することが可能となる。なお、後方のベース１の段部７に前方のベース１の周壁部３を係合するとともに後方のベース１の嵌合部８に前方のベース１のボス部６の先端部を嵌合しているので、重ね合わせた２つのベース１，１がずれるのを防ぐことができるとともに、周壁部３，３の間に段差が生じることが無く見栄えが良くなるという利点がある。
【００２４】
【発明の効果】
請求項１の発明は、前面に開口する複数の窓孔から一部を露出させた状態で複数の電力量計を収納する収納盤本体と、収納盤本体前面における窓孔の周縁部位に収納盤本体の内側に落ち込む形で設けられた凹部と、電力量計の一部を露出する露出孔を有し背面側を凹部に挿入する形で着脱自在に窓孔に嵌着される複数の窓枠とを備え、収納盤本体の前面における窓孔の周縁部位に、窓孔に向かって収納盤本体の内側に傾斜する傾斜面を形成し、窓孔を挟んで対向する少なくとも一対の傾斜面の傾斜角度を互いに異ならせるとともに、窓孔に嵌着された状態で窓孔の周縁部位の傾斜面と略同一角度で傾斜する少なくとも一対の傾斜面を窓枠の前面における露出孔の周縁部位であって露出孔を挟んで対向する周縁部位に形成するとともに、収納盤本体の前面におけるそれぞれの窓孔の周縁部位の傾斜面形状を略同形状として成るので、窓枠を窓孔周縁に誤った向きに取着すると窓孔周縁近傍の傾斜面と窓枠の露出孔周縁近傍の傾斜面との角度が異なることとなり、窓枠を誤った向きに取着していることが容易に判断でき、その結果、窓枠を誤った向きに取着するのを防止できるという効果がある。しかも、収納盤本体に複数台の電力量計を収納する場合に何れの窓孔にも同じ窓枠を取り付けることができ、窓枠の共通化が図れて製造作業が容易になるとともに製造コストが抑制できるという効果がある。
【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】同上の斜視図である。
【図３】同上におけるベースの背面図である。
【図４】同上におけるベースの前面図である。
【図５】同上におけるベースの前面図である。
【図６】同上の要部分解斜視図である。
【図７】同上における窓枠を取り付けた状態のカバーの側面断面図である。
【図８】同上における窓枠を取り付けた状態のカバーの上面断面図である。
【図９】同上における窓枠を取り付けた状態のカバーの前面図である。
【図１０】同上における窓枠を取り付けた状態のカバーの背面図である。
【図１１】同上における窓枠を上下逆向きに取り付けた状態のカバーの前面図である。
【図１２】同上の他の構成を示す斜視図である。
【図１３】同上におけるカバーの他の構成を示す上面断面図である。
【図１４】同上におけるカバーの他の構成を示す下面断面図である。
【図１５】同上における２つのベースを重ね合わせた状態を示す斜視図である。
【図１６】同上におけるベースの要部分解斜視図である。
【図１７】同上における２つのベースを重ね合わせた状態を示す側面断面図である。
【符号の説明】
１ベース
２０カバー
２１窓孔
２４凹部
２５ａ，２５ｂ傾斜面
３０窓枠
３１露出孔
３２ａ，３２ｂ傾斜面[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a watt-hour meter storage panel that stores a watt-hour meter with a part thereof exposed from a window hole.
[0002]
[Prior art]
2. Description of the Related Art Conventionally, there has been provided a distribution board in which a watt-hour meter is stored in a free space of a box in which breakers such as a main switch and a branch switch are disposed (for example, see Japanese Patent Application Laid-Open No. 9-163521). ). In this case, a cover having a large-diameter and small-diameter knockout hole is attached to the front side of the free space of the box, and a large-diameter or small-diameter knockout hole corresponding to the size of the wattmeter is formed. A part of the watt-hour meter (that is, the front of the watt-hour meter where the watt-hour supporting portion can be seen) is exposed from the knockout hole. The knockout hole is provided near one end of the flat cover, and the cover is attached to the box with this one end as the lower end.
[0003]
Further, a window hole corresponding to a large-sized watt-hour meter is formed on a flat front surface of the storage panel main body, and a window frame having an exposure hole corresponding to the small-sized watt-hour meter is detachably attached to the window hole. By doing so, a watt-hour meter storage panel that solves the above-mentioned problem has already been proposed. In this watt-hour meter storage panel, the window frame is hooked and attached to the inside of the periphery of the window hole so as to partially overlap the front surface of the periphery of the window hole. In order to secure a large wiring space for the breaker at the bottom of the box, it is necessary to arrange a watt hour meter at the top of the box as much as possible, so that the distance from the upper end of the window frame to the exposed hole is the closest. Is formed.
[0004]
[Problems to be solved by the invention]
In the above-described conventional example, the cover or the window frame may be attached to the window hole upside down, and it may be difficult to recognize that the cover or the window frame is attached upside down.
[0005]
The present invention has been made in view of the above problems, and an object of the present invention is to provide a watt-hour meter storage panel that can prevent a window frame from being attached in a wrong direction.
[0006]
[Means for Solving the Problems]
In order to achieve the above object, a first aspect of the present invention provides a storage panel main body for storing a plurality of watt-hour meters in a state where a part thereof is exposed from a plurality of window holes opened on a front surface, and a front surface of the storage panel main body. a recess provided in the form of drops on the inside of the housing board main body on the periphery portion of the window hole, detachably to the rear side has an exposed hole that exposes a portion of the electricity meter in a manner that inserted into the recess in the window hole and a plurality of window frame is fitted, the peripheral edge portion of the window opening in the front surface of the housing board main body, to form an inclined surface inclined obliquely to the inside of the housing board main body toward the window hole, across the window opening The at least one pair of inclined surfaces facing each other have different inclination angles from each other, and at least one pair of inclined surfaces that are inclined at substantially the same angle as the inclined surface of the peripheral portion of the window hole in a state fitted to the window hole are formed on the front surface of the window frame. peripheral portions opposite to each other across the insertion holes a peripheral edge portion of the exposure hole in Thereby forming the inclined surface shape of the peripheral edge portion of each window hole in the front surface of the housing plate body substantially the same shape and characterized by comprising, when attaching the window frame in the wrong orientation window hole periphery windows The angle between the inclined surface near the periphery and the inclined surface near the exposed hole periphery of the window frame is different, and it can be easily determined that the window frame is attached in the wrong direction. As a result, it is possible to prevent the window frame from being attached in the wrong direction. Moreover, when a plurality of watt-hour meters are to be stored in the storage panel body, the same window frame can be attached to any of the window holes. Can be suppressed.
[0008]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, an embodiment of the present invention will be described in detail with reference to FIGS.
[0009]
The watt-hour meter storage panel of the present embodiment includes a storage panel main body that stores the watt-hour meter 60 in a state where a part of the watt-hour meter 60 is exposed in a state where a part of the watt-hour meter 60 is exposed from the window hole 21 that opens to the front, and an exposure that exposes a part of the watt-hour meter 60. And a window frame 30 having a hole 31 and detachably attached to a peripheral edge of the window hole 21.
[0010]
The storage panel main body is composed of a base 1 made of synthetic resin having insulating properties and a cover 20. The base 1 has a rectangular plate-shaped base main body 2 having an electric meter 60 attached to the front surface and having an electric wire insertion hole 4 for inserting the electric wire 40 connected to the electric meter 60 from the back side to the front side, A plate-shaped peripheral wall portion 3 vertically extending from the peripheral edge of the base body 2 to the rear side, and a screw insertion hole 5 through which a mounting screw (not shown) for mounting the base body 2 to a construction surface such as a wall surface is inserted. And a substantially cylindrical boss 6 protruding from the back surface of the four corners of the base main body 2 to a position substantially the same as the tip of the peripheral wall 3. In addition, a stepped portion 7 that retreats to the rear side is formed on the entire periphery of the front surface of the base body 2, and at least the outer dimensions of the tip of the boss portion 6 are formed on the periphery of the screw insertion hole 5 on the front surface of the base body 2. A substantially circular fitting portion 8 having a not-so-small inner diameter and having a substantially same size as the step portion 7 and being retracted to the rear side is formed. Further, a ball hole 2a is provided in the center upper portion of the base body 2, and the head of a screw (not shown) attached to the construction surface can be locked to the ball hole 2a to temporarily fix the base 1. it can. Then, mounting screws are respectively inserted into the four screw insertion holes 5 of the temporarily fixed base 1, and the base 1 is fixed to the construction surface by these four mounting screws.
[0011]
Here, the substantially cylindrical concealing members 13 as shown in FIG. 6 are detachably fitted to the fitting portions 8, respectively. A projection 13a protrudes from an upper peripheral edge of the hidden member 13, and a positioning mark 13b is formed on a lower front surface. An escape portion 8a for allowing the projection 13a to escape is recessed in the upper peripheral surface of the fitting portion 8, and a positioning portion corresponding to the mark 13b of the hidden member 13 is provided on the front surface of the base body 2 below the fitting portion 8. Mark 8b is formed. Thus, by matching the marks 13b and 8b, the hidden member 13 can be easily positioned and fitted to the fitting portion 8, and the hidden member 13 can be fitted to close the fitting portion 8. The head of the mounting screw is not visible from the front surface of the base 1, and the appearance can be improved. When removing the hidden member 13 from the fitting portion 8, the hidden member 13 can be easily removed by inserting a jig such as a flathead screwdriver into a gap between the protrusion 13a and the escape portion 8a and prying it.
[0012]
A terminal portion to which the electric wire 40 is connected is provided at a lower end side of the wattmeter 60, and the terminal portion is covered with a terminal cover 61 made of an insulating synthetic resin or the like. A mounting bracket 62 bent substantially in an L shape is welded at one end to the upper end surface of the watt hour meter 60. Here, on the surface of the mounting bracket 62 facing the base 1 (the rear surface of the watt-hour meter 60), a burrow (not shown) is formed, and any of the four screw holes 2b formed in the base main body 2 is formed. The head of a fixing screw (not shown) screwed into the crab is inserted and locked in the daruma hole. The base body 2 is provided with screw-shaped grooves 2c, 2c having a substantially rectangular shape. A fixing screw (not shown) inserted into the screw-inserted grooves 2c, 2c from the back side of the base body 2 is connected to a watt-hour meter. By screwing into a screw hole (not shown) provided on the rear surface of the base 60, the watt hour meter 60 is attached to the upper front surface of the base body 2. It should be noted that which of the four screw holes 2b is to be screwed with the fixing screw depends on the dimensions of the watt hour meter 60.
[0013]
The electric wire insertion hole 4 formed in the lower part of the front surface of the base body 2 is separated into two right and left parts by a central wall 4a. At the periphery of the electric wire insertion holes 4 and 4 on the front surface of the base body 2, there is formed a mounting recess 9 which retreats on the back side of the base body 2, and the electric wire insertion hole cover 10 is fitted into the mounting recess 9. Is done. The wire insertion hole cover 10 is formed of a synthetic resin into a rectangular plate shape, and two types of knockout holes 10a having different diameters are provided at positions overlapping with the left and right wire insertion holes 4 and 4, respectively. Also, four locking projections 10b are provided on the upper end surface of the wire insertion hole cover 10 and two are provided on the lower end surface thereof so as to be engaged with the engaging portions 9a formed in the mounting recesses 9 of the base body 2. By locking these locking projections 10b to the locking portions 9a, the wire insertion hole cover 10 is detachably fitted to the mounting recess 9 of the base body 2. In addition, an elongated hole 10c is provided at a substantially central portion of the electric wire insertion hole cover 10 sandwiched between the pair of knockout holes 10a, into which a ridge 4b projecting from the front surface of the central wall 4a is fitted.
[0014]
Since the electric wire insertion hole 4 of the base body 2 is formed to have a size sufficiently larger than the diameter of the electric wire 40, an extra gap is generated in the electric wire insertion hole 4 when the electric wire 40 is inserted. Although there is a possibility that dust and dirt may enter the inside, the dust and dirt and the like can be prevented by closing an extra gap of the wire insertion hole 4 with the wire insertion hole cover 10. Here, the electric wire 40 is inserted into the knockout hole 10a of the electric wire insertion hole 4. In the case of the electric wire 40 having a relatively large diameter, the electric wire 40 is inserted into the knockout hole 10a having a larger diameter as shown in FIG. In the case of the electric wire 40 having a relatively small diameter, the electric wire 40 may be inserted into the knockout hole 10a having a smaller diameter as shown in FIG. In other words, a single type of wire insertion hole cover 10 can handle a plurality of types of wires 40 having different diameters, and there is no need to prepare a plurality of types of wire insertion hole covers corresponding to the diameter of the wires 40, resulting in cost reduction. It can be planned.
[0015]
On the other hand, the cover 20 is formed in a substantially box shape with an open rear surface, and is attached to the front surface of the base 1. A substantially rectangular window hole through which a part of the watt hour meter 60 is inserted and exposed is provided at the upper front surface. 21 are provided. A pair of locking holes 22, 22 are provided at the upper open end of the cover 20, and a substantially semi-circular disk in plan view having an insertion hole 23 a through which a fixing screw (not shown) is inserted from near the opening end at the center of the lower surface. A projecting portion 23 is provided to project downward. When the cover 20 is attached to the front surface of the base 1 so that the opening edge of the cover 20 is engaged with the step 7 of the base body 2, the cover 20 protrudes from the upper end side of the base body 2. The locking projections 11, 11 are inserted and locked in the locking holes 22, 22 of the cover 20. Further, a rectangular plate-shaped fixing bracket 12 is attached to a substantially lower center of the peripheral wall 3 of the base 1 so as to partially project downward, and is inserted into an insertion hole 23 a of the projection 23 of the cover 20. The base 1 and the cover 20 are firmly fixed by screwing the set fixing screw into a screw hole 12 a formed in the fixing bracket 12.
[0016]
By the way, a concave portion 24 which falls into the inside is provided substantially all around the periphery of the window hole 21 on the front surface of the cover 20, and the window frame 30 is detachably attached to the concave portion 24. An inclined surface 25 is formed near the periphery of the window hole 21 on the front surface of the cover 20 and is inclined toward the inside of the cover 20 toward the window hole 21. The inclination angle of the inclined surface 25b located below the hole 21 is reduced.
[0017]
On the other hand, the window frame 30 is made of synthetic resin and has a rectangular exposure hole 31 through which a part of the watt-hour meter 60 is inserted and exposed. A pair of inclined surfaces 32a, 32b opposed to each other with the exposure hole 31 interposed therebetween substantially match the inclination angles of the inclined surfaces 25a, 25b near the periphery of the window hole 21 of the cover 20, respectively. In addition, a plate-shaped protruding wall 33 that abuts the concave portion 24 provided on the periphery of the window hole 21 of the cover 20 is vertically provided from the rear side peripheral edge of the window frame 30 toward the back, and vertically opposed. In the vicinity of both ends of the protruding wall 33, locking pieces 34 each having a locking claw 34a that locks to the tip of the concave portion 24 are provided to protrude along the protruding wall 33, respectively. Note that a tapered surface 34b that slopes outward toward the front side of the window frame 30 is formed at the tip of the locking claw 34a.
[0018]
When the rear side of the window frame 30 is inserted into the window hole 21 of the cover 20 from the front, the tapered surface 34b of the locking claw 34a comes into contact with the tip of the concave portion 24, and presses the window frame 30 toward the cover 20. As a result, the locking piece 34 bends inward along the tapered surface 34 b, and the locking claw 34 a rides over the leading end of the concave portion 24 and locks the window frame 30 in the concave portion 24. It is fitted into the hole 21 (see FIGS. 7 and 10). The window frame 30 can be easily removed from the cover 20 by releasing the engagement between the recess 24 and the engagement claw 34a.
[0019]
That is, when the external dimensions of the portion that is inserted into and exposed through the window hole 21 of the watt hour meter 60 are large, a part of the watt hour meter 60 is inserted through the window hole 21 of the cover 20 without using the window frame 30. If the outer dimensions of the portion of the watt hour meter 60 that is exposed through the window hole 21 are small, the window frame 30 is attached to the window hole 21 as shown in FIG. A part of the watt hour meter 60 may be inserted into the exposure hole 31 of the window frame 30 to be exposed. By detachably attaching the window frame 30 to the window hole 21 of the cover 20 in this manner, the watt-hour meters 60 having different dimensions can be freely replaced and housed with a good appearance. In addition, since the inclination angles of the pair of inclined surfaces 32a and 32b opposed to each other with the exposure hole 31 interposed therebetween substantially coincide with the inclination angles of the inclined surfaces 25a and 25b near the periphery of the window hole 21 of the cover 20, respectively, FIG. As shown, the front surface of the window frame 30 and the front surface of the cover 20 (storage panel main body) are flush with each other with the window frame 30 attached to the window hole 21, so that no step is formed between the two, as in the conventional example. It is possible to prevent a situation in which the window frame is accidentally detached from being caught by a step formed between the storage panel body and the window frame.
[0020]
The window frame 30 can be mounted upside down with respect to the window hole 21, but the angle of inclination of the pair of inclined surfaces 32 a and 32 b opposed to each other with the exposure hole 31 interposed therebetween Since the inclination angles near the periphery are substantially equal to the inclination angles of the inclined surfaces 25a and 25b different from each other, when the window frame 30 is mounted upside down, as shown in FIG. The inclination angles of the inclined surfaces 25a and 25b and the inclined surfaces 32a and 32b of the window frame 30 do not match, and it can be easily determined that the window frame 30 is mounted in the wrong direction. (Upside down) can be prevented. Forming the inclined surfaces 32a and 32b on the window frame 30 has an advantage that the thickness from the front surface to the rear surface of the window frame 30 is increased as compared with a flat case, and the strength of the window frame 30 is improved. is there.
[0021]
By the way, as shown in FIG. 12, the base 1 'and the cover 20' are formed to be approximately twice the size in the left-right direction, and the window holes 21 ', 21' of the same shape are arranged side by side at the upper part of the front surface of the cover 20 '. The two watt-hour meters 60, 60 may be housed. By storing a plurality of watt-hour meters 60 in this way, the cost can be reduced as compared with using a plurality of watt-hour meter storage panels that store one watt-hour meter 60. At this time, if the shape of the inclined surface 25 'formed near the periphery of each of the window holes 21', 21 'of the cover 20' is made the same, the same window frame 30 is provided in each of the window holes 21 ', 21'. There is an advantage that the window frame 30 can be attached, the common use of the window frame 30 is achieved, the manufacturing operation is facilitated, and the manufacturing cost can be suppressed.
[0022]
By the way, when the thickness of the erection material such as the wall material to which the base 1 is attached is small and the diameter of the electric wire 40 is larger than the thickness of the erection material, it is bent when the electric wire 40 is pulled out from the hole of the erection material. It is difficult to insert the electric wire 40 into the electric wire insertion hole 4 of the base 1 in some cases. In such a case, it is conceivable to interpose a spacer between the base 1 and the construction surface in order to compensate for the thickness of the construction material. However, in this case, a spare spacer must be created one by one according to the thickness of the construction material. However, there is a disadvantage that a mold dedicated to the spacer is required and the manufacturing cost is increased.
[0023]
Therefore, in the present embodiment, the step portion 7 is formed over the entire periphery of the front surface of the base body 2, and has an inner diameter not smaller than the outer dimension of the tip portion of the boss portion 6 and has substantially the same size as the step portion 7. The fitting part 8 which receded to the back side is formed. That is, as shown in FIGS. 16 and 17, when another base 1 is superimposed on the front surface of the base 1, the peripheral wall 3 of the front base 1 is engaged with the step 7 of the rear base 1 and The front end of the boss portion 6 of the front base 1 is fitted into the fitting portion 8, and in this state, the electric wire 40 is inserted into the electric wire insertion hole 4 of each base 1, 1 as shown in FIG. The electric wire 40 can be connected to the watt hour meter 60 attached to 1. Therefore, even when the thickness of the erection material is small and the diameter of the electric wire 40 is larger than the thickness of the erection material, the electric wire 40 is easily bent by overlapping the bases 1 and 1 as described above. It is not necessary to use a separate member such as a spacer, and it is possible to cope with a small construction surface without increasing the cost. In addition, the peripheral wall 3 of the front base 1 is engaged with the step 7 of the rear base 1 and the front end of the boss 6 of the front base 1 is fitted into the fitting portion 8 of the rear base 1. Therefore, there is an advantage that the two bases 1 and 1 that are superimposed can be prevented from being displaced from each other, and the appearance is improved without any step between the peripheral wall portions 3 and 3.
[0024]
【The invention's effect】
According to the first aspect of the present invention, there is provided a storage panel body for storing a plurality of watt-hour meters in a state where a part thereof is exposed from a plurality of window holes opened on a front surface, and a storage panel at a peripheral portion of the window hole on a front surface of the storage panel body. A plurality of window frames having a recess provided inside the main body and having an exposure hole for exposing a part of the watt-hour meter and having a rear side inserted into the recess so as to be detachably fitted to the window hole. with the door, the periphery portion of the window opening in the front surface of the housing board main body, to form an inclined surface inclined obliquely to the inside of the housing board main body toward the window hole, at least one pair of inclined surfaces facing each other across the window opening At least one pair of inclined surfaces that are inclined at substantially the same angle as the inclined surface of the peripheral portion of the window hole in a state of being fitted into the window hole while being made different from each other at the peripheral portion of the exposed hole on the front surface of the window frame. and forming the periphery portion that face each other across the insertion holes Te, housed Release Since made substantially in the same shape inclined surface shape of the peripheral edge portion of each window hole in the front of the body, the inclined surface of the window opening near the peripheral edge when attached to orientation incorrect window frame in the window hole periphery and the window frame of the The angle with the inclined surface near the periphery of the exposure hole will be different, so it can be easily determined that the window frame is attached in the wrong direction, thereby preventing the window frame from being attached in the wrong direction. There is an effect that can be. Moreover, when a plurality of watt-hour meters are stored in the storage panel body, the same window frame can be attached to any of the window holes. There is an effect that it can be suppressed.
[Brief description of the drawings]
FIG. 1 is an exploded perspective view showing an embodiment.
FIG. 2 is a perspective view of the same.
FIG. 3 is a rear view of the base in the above.
FIG. 4 is a front view of the base in the above.
FIG. 5 is a front view of the base in the above.
FIG. 6 is an exploded perspective view of a main part of the above.
FIG. 7 is a side sectional view of the cover with the window frame attached thereto in the same.
FIG. 8 is a top cross-sectional view of the cover with the window frame attached thereto.
FIG. 9 is a front view of the cover with the window frame attached thereto in the same.
FIG. 10 is a rear view of the cover with the window frame attached thereto in the same.
FIG. 11 is a front view of the cover in a state where the window frame in the above is mounted upside down.
FIG. 12 is a perspective view showing another configuration of the above.
FIG. 13 is a top sectional view showing another configuration of the cover in the above.
FIG. 14 is a bottom sectional view showing another configuration of the cover in the above.
FIG. 15 is a perspective view showing a state in which the two bases in the above are overlapped.
FIG. 16 is an exploded perspective view of a main part of the above base.
FIG. 17 is a side cross-sectional view showing a state where the two bases in the above are overlapped.
[Explanation of symbols]
1 Base 20 Cover 21 Window hole 24 Depressions 25a, 25b Inclined surface 30 Window frame 31 Exposed holes 32a, 32b Inclined surface

Claims

A storage panel main body that stores a plurality of watt-hour meters in a state where parts are exposed from a plurality of window holes that open to the front, and a form that falls inside the storage panel main body at the peripheral portion of the window hole on the front of the storage panel main body. A storage panel body including a recess provided , and a plurality of window frames having an exposure hole for exposing a part of the watt hour meter and having a rear side inserted into the recess and removably fitted to the window hole; of the peripheral edge portion of the window opening in the front surface, forming an inclined surface inclined obliquely to the inside of the housing board main body toward the window hole, causes different from each other inclination angle of at least a pair of inclined surfaces which face each other across the window opening At least one pair of inclined surfaces that are inclined at substantially the same angle as the inclined surface of the peripheral portion of the window hole when fitted in the window hole are opposed to each other at the peripheral portion of the exposed hole on the front surface of the window frame with the exposed hole interposed therebetween. and forming the periphery portion that, in the front surface of the housing plate body Electricity meter housing panel, characterized by comprising substantially in the same shape inclined surface shape of the peripheral portion of the window hole of respectively.