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JP3566185B2 - Wiring fixture fixing tool - Google Patents
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JP3566185B2 - Wiring fixture fixing tool - Google Patents

Wiring fixture fixing tool Download PDF

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Publication number
JP3566185B2
JP3566185B2 JP2000179472A JP2000179472A JP3566185B2 JP 3566185 B2 JP3566185 B2 JP 3566185B2 JP 2000179472 A JP2000179472 A JP 2000179472A JP 2000179472 A JP2000179472 A JP 2000179472A JP 3566185 B2 JP3566185 B2 JP 3566185B2
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Japan
Prior art keywords
groove
wiring
shaft portion
wiring device
fixing
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JP2000179472A
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JP2002010430A (en
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昭八 清水
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Mirai Industry Co Ltd
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Mirai Industry Co Ltd
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Description

【0001】
【発明の属する技術分野】
この発明は、建築物内の壁に設置された配線用ボックスの配線器具取付部に螺合されて、配線用ボックスに配線器具を取付可能とする配線器具固定用ビスを折り取り可能とする折取具に関するものである。
【0002】
【従来の技術】
従来より建築物内の壁の表面にコンセント等の配線器具を取り付けるために壁裏には配線用ボックスが設置され、この配線用ボックスは開口を有する有底四角箱状をなすボックス本体を備えている。そのボックス本体の底板上には配線用ボックスに対して配線器具を取り付ける際に使用される一対の配線器具固定用ビスが保持されている。また、ボックス本体の一側壁には、その側壁を貫通してビス孔が2箇所に形成され、そのビス孔から壁裏側に立設された柱にビスを固定することにより、配線用ボックスを柱に取り付けることができるようになっている。
【0003】
ボックス本体の上下両側壁の内側面には、それぞれボックス本体の開口側に臨む配線器具取付部が相対向して形成され、各配線器具取付部内には、前記配線器具固定用ビスの雄ねじが螺合可能な雌ねじが螺刻された雌ねじ部が形成されている。各配線器具取付部の前面にはそれぞれ取付孔が形成され、各取付孔から前記雌ねじ部に前記配線器具固定用ビスを挿入して螺合することができるようになっている。配線器具を保持した状態で配線用ボックスに取り付けられる配線器具保持枠は、四角枠状をなし、その上下両端部には前記取付孔に対応する孔が形成されている。
【0004】
そして、この配線用ボックスを使用して配線器具を壁表に取り付けるには、まず、配線用ボックスをその前面が前記柱の前面と面一になるように柱に取り付け、その配線用ボックス内に、ケーブルを長さに余裕を持った余長部を有した状態で収容する。次いで、柱及び配線用ボックスの前方に壁材を設置し、壁を形成する。その壁表に貫通孔を開け、配線用ボックスの開口を壁表側に臨ませる。
【0005】
次に、配線用ボックス内のケーブルに配線器具を接続し、その配線器具を配線器具保持枠に保持させる。続いて、一対の配線器具固定用ビスを底板から取り外し、前記配線器具保持枠の孔から配線器具固定用ビスを前記雌ねじ部に螺合して、配線器具保持枠を介して配線器具を配線用ボックスに取付ける。このとき、配線器具固定用ビスは底板に予め保持されているため、配線器具固定用ビスを別途用意する場合と異なり配線器具の取付作業の簡易化が図られる。その結果、配線器具が配線用ボックス内に収容されるとともに、壁に取付けられる。
【0006】
前記配線器具固定用ビスは軸部の軸線方向への長さが40mm程度に設定されている。これは配線用ボックスの前面に配置される構築材が例外的に著しく厚くなる場合、例えば壁材の厚みが厚く(例えば厚さ12.5mm)、その壁材の表面に厚い仕上壁材が別途設けられ、さらには配線用ボックスの前面に胴縁材(厚さ15mm)が設置されるような場合であっても配線器具固定用ビスを各構築材を貫通して配線器具取付部に螺合可能とするためである。
【0007】
【発明が解決しようとする課題】
ところが、実際には配線用ボックスの前面には前記のような構築材が設置される場合がほとんどなく、厚さ3mm程度のプラスチックボードのみが壁材として設置されたり、配線用ボックスの前面に泥壁が形成されて壁材が設置されない場合もある。即ち、ほとんどの場合、配線器具固定用ビスはその軸線方向への長さが40mmより短くても配線器具取付部に螺合可能となる。従って、配線器具固定用ビスの軸部の軸線方向への長さが40mm必要としない場合にも、上記配線器具固定用ビスを使用して配線器具を配線用ボックスに取り付けなければならない。その結果、配線器具取付部の雌ねじ部に対する雄ねじの螺合量が多くなり、配線器具の取付作業が非常に面倒であるという問題があった。
【0008】
また、近年の住宅事情においては、壁の厚みが薄くなる傾向にあり、その壁に対応するために配線用ボックスはその厚みが薄く形成されたものが使用されている。そのため、例えば、前記薄型の配線用ボックス(例えば厚さ30mm)を使用し、その配線用ボックスの前面に泥壁を形成して配線器具取付部に配線器具固定用ビスを螺合すると、その配線器具固定用ビスの先端がボックス本体の底板から突出してしまう。その結果、配線器具固定用ビスが壁内に収まらなくなり、その薄型の配線用ボックスを使用して配線器具を壁に取り付けることができなくなるという問題もあった。
【0009】
さらに、前記薄型の配線用ボックスはその内部空間を広くし、前記余長部を有するケーブルを収容可能とすべく形成されている。即ち、配線用ボックス内において、配線器具取付部が配線用ボックスの前面のみに形成されて底板方向へ延設されておらず、配線器具取付部の下端部と底板との間に空間が形成されている。
【0010】
そのため、配線器具取付部に配線器具固定用ビスを螺合するとその配線器具固定用ビスが配線用ボックス内で露出してしまい、配線用ボックス内に収容された余長部を有するケーブルや、そのケーブルと配線器具との接続部に配線器具固定用ビスが接触したりするおそれがあるという問題があった。加えて、配線用ボックス内に収容されたケーブルを壁表側に引き出すとき、ケーブルが配線器具固定用ビスに絡んだりしてケーブルの壁表への引き出し作業が行いにくくなるという問題もあった。
【0011】
この発明は、このような従来技術に存在する問題点に着目してなされたものである。その目的とするところは、軸部の軸線方向への長さを短くする作業を容易に行うことができる配線器具固定用ビスの折取具を提供することにある。
【0013】
【課題を解決するための手段】
上記の目的を達成するために、請求項1に記載の発明の配線器具固定用ビスの折取具は、軸部と頭部とよりなり、前記軸部には同軸部を先端側から折り取り、当該軸部の軸線方向への長さを短くすることを可能とする折取溝が設けられて、建築物の壁内に設置された配線用ボックスの配線器具取付部に螺合され、前記配線用ボックスに配線器具を取り付けて壁面に配線器具を取付可能とする配線器具固定用ビスの少なくとも折取溝より先端側の軸部を露出させた状態で、当該折取溝より基端側の軸部及び頭部を保持可能な保持部を備え、保持部により前記折取溝より基端側の軸部及び頭部を保持した状態で、保持部から露出した軸部を折取溝から折り取り可能に構成したものである。
【0014】
請求項2に記載の発明の配線器具固定用ビスの折取具は、請求項1に記載の発明において、前記保持部は軸部の軸線方向に沿って複数箇所に設けられた各折取溝を露出可能とすべく折取溝より基端側の軸部及び頭部を段階的に保持可能に形成されているものである。
【0015】
請求項3に記載の発明の配線器具固定用ビスの折取具は、請求項1又は請求項2に記載の発明において、前記保持部は折取溝より基端側の軸部及び頭部を収容可能な溝部を備えているものである。
【0016】
請求項4に記載の発明の配線器具固定用ビスの折取具は、請求項3に記載の発明において、一端側に前記溝部を備え、他端側に手で把持可能な把持部を備えているものである。
【0022】
【発明の実施の形態】
以下、この発明を配線器具固定用ビスの折取具に具体化した一実施形態を、図面に基づいて詳細に説明する。
【0023】
図1に示すように、配線器具固定用ビス11(以下、単に固定用ビス11と称す)は断面円形状をなす軸部11aと頭部11bとよりなり、前記軸部11aには同軸部11aを先端側から折り取り、その軸部11aの軸線方向への長さを短くすることを可能とする折取溝12a、12bが設けられているものである。固定用ビス11の軸部11aの軸線方向への長さはL1に設定されている。
【0024】
固定用ビス11の軸部11aの外周面には雄ねじが螺刻され、軸部11aの軸線方向に沿って、軸部11aの先端側から第1折取溝12aと第2折取溝12bとが設けられている。各折取溝12a、12bはそれぞれ軸部11aの周方向に沿ってV溝状に切り欠き形成され、それら折取溝12a、12bが形成された部分は軸部11aの中心線へ向かうに従いその他の部分より細くなって形成されている。
【0025】
そして、第1折取溝12aから軸部11aの先端側を折り取ることにより軸部11aの軸線方向への長さをL2に設定して、折り取り前の軸部11aの軸線方向への長さL1より短くすることができる。さらに、第2折取溝12bから軸部11aの先端側を折り取ることにより軸部11aの軸線方向への長さをL3に設定して、前記軸部11aの軸線方向への長さL2より短くすることができる。従って、固定用ビス11の軸線方向への長さを2段階に調整可能になっている。
【0026】
固定用ビス11の軸部11aを前記各折取溝12a、12bから折り取り可能に構成された図2(a)に示す配線器具固定用ビス11の折取具13(以下、単に折取具13と称す)について説明する。折取具13は前記第1折取溝12a及び第1折取溝12aより先端側の軸部11aを露出させた状態で、第1折取溝12aより基端側の軸部11a及び頭部11bを保持可能な保持部14を備えたものである。また、第2折取溝12b及び第2折取溝12bより先端側の軸部11aを露出させた状態で、第2折取溝12bより基端側の軸部11a及び頭部11bを保持可能な保持部14を備えたものでもある。
【0027】
図2(b)に示すように、保持部14は一対の分割体13a、13bを組み合わせて構成されている。前記一対の分割体13a、13bは、それぞれ矩形状をなす金属板をその長さ方向に延びる中心線に沿って断面半円状をなす収容溝15が形成されるように折り曲げて形成されている。前記各収容溝15には、それぞれ軸部11aを収容することができるとともに、頭部11bを収容可能な第1収容孔16及び第2収容孔17が収容溝15の長さ方向に沿って形成されている。
【0028】
各分割体13a、13bにおいて、頭部11bが第1収容孔16に収容された状態において、頭部11bから第1折取溝12aの頭部11b側端縁までの軸部11aは収容溝15に収容されるようになっている。それと同時に、第1折取溝12aの頭部11b側端縁は各分割体13a、13bの長さ方向における一端縁に位置する。このとき、第1折取溝12aより先端側の軸部11aは各分割体13a、13bの一端縁より外方へ突出する。
【0029】
一方、各分割体13a、13bにおいて、頭部11bが第2収容孔17に収容された状態において、頭部11bから第2折取溝12bの頭部11b側端縁までの軸部11aは収容溝15に収容されるようになっている。それと同時に、第2折取溝12bの頭部11b側端縁は各分割体13a、13bの長さ方向における一端縁に位置する。このとき、第2折取溝12bより先端側の軸部11aは分割体13a、13bの一端縁より外方へ突出する。各分割体13a、13bの長さ方向における他端部の両側部にはそれぞれねじ孔18が形成され、各ねじ孔18には一対に分割体13a、13bの締付手段としてのねじ19が螺合可能になっている。
【0030】
そして、一方の分割体13aのねじ孔18と他方の分割体13bのねじ孔18とを対応させて各ねじ孔18にねじ19を螺合する。その結果、図2(a)に示すように、一対の分割体13a、13bにより保持部14を構成するとともに、それら分割体13a、13bの収容溝15同士により軸部11a及び頭部11bを保持可能な断面円形状をなす溝部14aが形成されるようになっている。
【0031】
続いて、固定用ビス11が備え付けられる配線用ボックス20について説明する。図5に示すように、配線用ボックス20は、建築物内に立設された壁21内に設置され、前記壁21は一対の壁材21a、21bを相対向して立設して形成されている。一方の壁材21aの前方には柱22が立設され、その柱22に配線用ボックス20を取り付けた後に、その配線用ボックス20の前方に他方の壁材21bを立設して壁21が形成されている。
【0032】
図3に示すように、合成樹脂製の配線用ボックス20は、前面(図3では左側)に開口を有する有底四角箱状のボックス本体23を備えている。ボックス本体23の底板24は平面長方形状をなし、底板24の周縁には、その底板24の各辺に対応する側壁25〜28が前方(図3では左方)に向けて底板24に対し略垂直に立設されている。各側壁25〜28の幅方向への長さ、即ちボックス本体23の厚みはT1に設定されている。
【0033】
前記ボックス本体23の上下両側壁25,26の相対向する両側部には、それぞれボックス本体23の開口に連通する連通部23aが形成され、各連通部23aの外端縁には平面円形状をなし、ケーブル39が配線可能な配線貫通孔29が形成されている。ボックス本体23の上側壁25及び下側壁26の内面中央には、それぞれ上側壁25及び下側壁26の前端から底板24側へ延びる配線器具取付部30が一体形成され、各配線器具取付部30の前面には取付孔30aが形成されている。また、図4に示すように、前記取付孔30aは、ボックス本体23の前面開口に臨み各配線器具取付部30内には内周に前記固定用ビス11の雄ねじが螺合可能な雌ねじが螺刻された雌ねじ部30bが形成されている。
【0034】
左側壁27には長孔状のビス孔31が所定間隔をおいて3箇所に貫通形成され、前記柱22に対して前記ビス孔31からビス32を固定することにより、配線用ボックス20をその柱22に取り付けることができるようになっている。図3に示すように、底板24の上部の一側部には3箇所に保持突起33が一定間隔をおいて突設され、隣接する保持突起33の間に固定用ビス11の軸部11aを保持可能になっている。そして、前記保持突起33による軸部11aの保持によりボックス本体23の底板24上に2本の固定用ビス11を保持して、前記構成の固定用ビス11を備えた配線用ボックス20が構成されるようになっている。図6に示すように、配線用ボックス20に保持される固定用ビス11の軸部11aの軸線方向への長さL1はボックス本体23の厚みT1より長く形成されている。
【0035】
また、第1折取溝12a又は第2折取溝12bから軸部11aを折り取ることにより得られる固定用ビス11の軸部11aの軸線方向への長さL2又はL3はそれぞれボックス本体23の厚みT1より短くなっている。
【0036】
図5に示すように、配線用ボックス20の前面に配置される配線器具保持枠34は略四角枠状をなし、その中央部に配線器具35を保持することができるようになっている。また、配線器具保持枠34の上下両端部には孔34aが形成され、各孔34aから前記取付孔30aに固定用ビス11を挿通可能になっている。そして、図9に示すように、各固定用ビス11の雄ねじを前記雌ねじ部30bに螺合すると、配線器具保持枠34を介して配線器具35をボックス本体23、即ち配線用ボックス20に取付けることができるとともに、壁21に配線器具35を取り付けることができる。
【0037】
前記固定用ビス11の使用方法について以下に記載する。
まず、図4に示すように、柱22に対して配線用ボックス20を取り付け、その配線用ボックス20内にケーブル39を配線する。次いで、図5に示すように、配線用ボックス20の前面に他方の壁材21bを設置して配線用ボックス20を一対の壁材21a、21bの間に配置するとともに、壁21を形成する。続いて、配線用ボックス20の前面開口が他方の壁材21bの表側に臨むように貫通孔36を形成し、その貫通孔36から配線用ボックス20内のケーブル39を壁21の表側へ引き出す。そのケーブル39に配線器具35を接続し、その配線器具35を配線器具保持枠34に保持させる。
【0038】
次いで、配線用ボックス20の底板24に保持された固定用ビス11をそれぞれ保持突起33間から取外す。図6に2点鎖線で示すように、固定用ビス11の軸部11aの軸線方向への長さL1は配線用ボックス20の厚みT1より長く形成され、固定用ビス11をそのまま使用すると配線用ボックス20の裏側の壁材21aに当たってしまう。そのため、軸部11aの軸線方向への長さL1を調整する。
【0039】
まず、図2(b)に示すように、一方の分割体13aにおいて、第2収容孔17に固定用ビス11の頭部11bを収容するとともに、収容溝15内に軸部11aを収容する。このとき、第2折取溝12bにおいて、頭部11b側端縁が分割体13aの一端縁に位置する。次いで、他方の分割体13bを一方の分割体13a上に配置し、各ねじ孔18にねじ19を螺合する。すると、図7に示すように、一対の分割体13a、13bにより保持部14及び溝部14aが形成されて折取具13が構成される。その折取具13の溝部14aに固定用ビス11の頭部11b及び第2折取溝12bより頭部11b側が収容されるとともに、保持部14により固定用ビス11が保持される。それと同時に、折取具13の一端縁より外方には第2折取溝12bより先端側の軸部11aが露出する。
【0040】
続いて、折取具13の他端側を手で把持するとともに、図示しないプライヤーにより軸部11aを把持し、折取具13の一端縁を支点にし、てこの原理を利用して軸部11aの先端側を図7に矢印で示す方向へ折り曲げる。このとき、固定用ビス11は一対の分割体13a、13bにより挟持されるとともに、軸部11aの断面形状に対応する断面円形状の溝部14a内に収容されている。加えて、ねじ19により一対の分割体13a、13bが締め付けられている。そのため、軸部11aの折り曲げの際に、一対の分割体13a、13bの分離が防止されるとともに、軸部11aが保持部14に保持されて折取具13内を移動するのが防止される。すると、第2折取溝12bはその他の部分より細く形成されているため、その第2折取溝12bより軸部11aの先端側が折り取られる。
【0041】
その後、図8に示すように、各ねじ孔18からねじ19を螺退するとともに、一対の分割体13a、13bを分解して固定用ビス11を取り出す。その結果、図8に2点鎖線で示すように、第2折取溝12bより先端側の軸部11aが折り取られる。そして、折り取られた分だけ軸部11aの軸線方向への長さが短く形成され、軸部11aの軸線方向への長さがL3に設定された固定用ビス11が得られる。この作業を他方の固定用ビス11に対しても同様に行う。
【0042】
そして、図9に示すように、配線器具保持枠34の各孔34aから配線器具取付部30の雌ねじ部30bに固定用ビス11の雄ねじを螺合する。このとき、軸部11aの雄ねじの雌ねじ部30bに対する螺進量は、軸部11aを折り取る前の固定用ビス11と比較して少なくなっている。その結果、壁21の表側に配線器具保持枠34が取り付けられ、配線器具35が壁21の表側に取り付けられる。また、固定用ビス11は軸部11aが折り取られているため、軸部11aの軸線方向への長さL3が配線用ボックス20の厚みT1より短くなり、固定用ビス11が配線用ボックス20の底板24から突出するのが防止される。
【0043】
前記の実施形態によって発揮される効果について、以下に記載する。
(1) 第2折取溝12bから軸部11aの先端側を折り取ることにより、折り取り前の軸部11aの軸線方向への長さL1を容易に短くすることができる。従って、軸部11aを折り取る前の固定用ビス11と異なり、固定用ビス11の雄ねじを雌ねじ部30bに螺進する量を減らすことができ、配線器具保持枠34を介した配線器具35の壁21に対する取付作業の簡易化を図ることができる。
【0044】
(2) 第1折取溝12a又は第2折取溝12bから軸部11aの先端側を折り取ることにより軸部11aの軸線方向への長さをL2又はL3にして、軸部11aの軸線方向への長さを配線用ボックス20の厚みT1より短くすることができる。そのため、固定用ビス11を使用して配線器具保持枠34を配線用ボックス20に取り付けたとき、固定用ビス11が底板24の背面側へ突出して一方の壁材21aに当たるのを防止することができる。従って、固定用ビス11が壁21内に収まらなくなり、配線用ボックス20を使用して配線器具35を壁21に取り付けることができなくなるという不具合をなくすことができる。
【0045】
(3) 各折取溝12a、12bは軸部11aの中心線に向かうに従い細くなるように断面V溝状に形成されている。そのため、各折取溝12a、12bが断面コ字状をなすように形成されている場合と比較して各折取溝12a、12bから軸部11aを容易に折り取ることができる。
【0046】
(4) 軸部11aには第1及び第2折取溝12a、12bが形成されているため、他方の壁材21bの厚みに対応させて軸部11aの軸線方向への長さを変更することができる。従って、折取不能の固定用ビスが配線用ボックス20に備え付けられている場合と異なり、3種類の他方の壁材21bの厚みに対応することができる。従って、軸部11aの軸線方向への長さL1が複数種類に設定された固定用ビスを別途用意する手間を省くことができる。また、固定用ビス11の雄ねじを雌ねじ部30bに螺進する量を多くならないようにして配線器具35の取付作業の簡易化を図ることができる。
【0047】
(5) 固定用ビス11は壁21内に設置された配線用ボックス20に予め保持されているため、配線器具35の取付時に固定用ビス11を別途用意する必要がなく、配線器具35の取付作業の迅速化を図ることができる。
【0048】
(6) 固定用ビス11の各折取溝12a、12bからの折り取り作業は折取具13を使用して行われる。そのため、固定用ビス11の折り取り作業を手で行う場合と異なり、折り取り作業の簡易化を図ることができる。
【0049】
(7) 一対の分割体13a、13bにより固定用ビス11を挟持するため、軸部11aの折り取り作業中に軸部11aが折取具13から抜け出るのを防止して折り取り作業の簡易化を図ることができる。
【0050】
(8) 固定用ビス11を保持した一対の分割体13a、13bはねじ19により締め付けられるため、軸部11aを折り取ろうとしたとき一対の分割体13a、13bが分離するのを防止することができる。従って、固定用ビス11を溝部14a内に確実に保持して軸部11aの折り取り作業を確実に行うことができる。
【0051】
(9) 溝部14aは断面円形状をなす軸部11aに対応する断面円形状をなすため、軸部11aを溝部14a内に安定した状態で保持することができる。
(10) 溝部14aに固定用ビス11を収容して保持部14に保持させたとき、第1又は第2折取溝12a、12bの頭部11b側端縁が折取具13の一端縁に位置するように形成されている。そのため、一体の折取具13を使用して第1折取溝12a又は第2折取溝12bからも軸部11aを容易に折り取ることができ、各折取溝12a、12bに対応した折取具13を別々に用意する場合と異なり折り取り作業の簡易化を図ることができる。
【0052】
(11) 保持部14は固定用ビス11の軸部11aと頭部11bを保持可能に形成されている。そのため、保持部14により固定用ビス11を保持し、軸部11aを折り取ろうとしたとき固定用ビス11が溝部14a内で移動するのを防止して軸部11aの折り取り作業を容易に行うことができる。
【0053】
(12) 折取具13の他端側を把持し、一端縁を支点にして軸部11aの先端側を折り曲げるため、てこの原理により軸部11aを容易に折り曲げることができ、軸部11aの折り取り作業を容易に行うことができる。
【0054】
なお、本実施形態は、次のように変更して具体化することも可能である
【0055】
・ 図10に示すように、折取具13は、その厚みが固定用ビス11の頭部11bの直径より大きくなるように直方体状に形成され、その折取具13の一端側の上面からは、頭部11bの直径より深い溝部14aが凹設されているとともに、溝部14aには第1及び第2収容孔16,17が形成されている。さらに、折取具13は、その上方から溝部14a及び第1又は第2収容孔16,17に固定用ビス11の軸部11a及び頭部11bを収容したとき、各折取溝12a、12bが、折取具13の一端縁に位置するように形成されている。折取具13の他端側には手で把持可能な把持部37が形成され、その把持部37の上面にはカッターナイフの刃部を折り取り可能とするため、前記刃部を保持可能な保持溝40が形成されている。
【0056】
そして、図10に示す折取具13の使用の際は、まず、図10に2点鎖線で示すように、折取具13の上方から溝部14a及び第1又は第2収容孔16,17に固定用ビス11の軸部11a及び頭部11bを収容する。次いで、図10に矢印で示すように、軸部11aの先端側を固定用ビス11の溝部14aに対する収容方向と直交する方向、即ち溝部14aのいずれか一方の内側壁側へ折り曲げる。すると、溝部14aの内側壁を支点として第1折取溝12a又は第2折取溝12bから軸部11aを容易に折り取ることができる。軸部11aを溝部14aの内側壁方向へ折り曲げるため、固定用ビス11が溝部14aから上方へ抜け出るのを防止して、軸部11aの折り取り作業を効率良く行うことができる。
【0057】
・ 図11(a)に示すように、一対の分割体13a、13bの他端部同士を連結片38により連結して一体化する。そして、図11(b)に示すように、両分割体13a、13bを互いに近付くように回動させて保持部14を構成するとともに、両収容溝15により溝部14aを形成して折取具13を構成してもよい。
【0058】
・ 一対の分割体13a、13bの締付手段として、クリップにより一対の分割体13a、13bを締め付けてもよく、ボルトをねじ孔18に挿通し、そのボルトにナットを螺合して一対の分割体13a、13bを締め付けてもよい。
【0059】
・ 各折取溝12a、12bをV溝状に形成せず、例えば各折取溝12a、12bを断面半円状や断面コ字状に切り欠いてもよい。
・ 折取具13において、第1収容孔16を省略して第2収容孔17のみを形成し、溝部14aに固定用ビス11を保持させたとき、第2折取溝12bが折取具13の一端縁に位置するようにしてもよい。又は第2収容孔17を省略して第1収容孔16のみを形成し、溝部14aに固定用ビス11を保持させたとき、第1折取溝12aが折取具13の一端縁に位置するようにしてもよい。また、各分割体13a、13bにおいて、第1及び第2収容孔16,17に加えて別に収容孔を形成して収容孔を3箇所以上としてもよい。
【0060】
・ 各分割体13a、13bの一端縁が、第1折取溝12a又は第2折取溝12bの頭部11b側端縁と軸部11aの先端側端縁との間に位置するように、軸部11aに第1折取溝12a又は第2折取溝12bを形成してもよい。又は各分割体13a、13bの一端縁が、第1折取溝12a又は第2折取溝12bの軸部11aの先端側端縁に位置するように軸部11aに第1折取溝12a又は第2折取溝12bを形成してもよい。
【0061】
・ 図12に示すように、実施形態における他方の壁材21bの厚みより厚く形成された壁材21bを配線用ボックス20の前面に配置し、第2折取溝12bから軸部11aを折り取った固定用ビス11を使用してその他方の壁材21bの表側から固定用ビス11を配線器具取付部30に取り付けてもよい。
【0062】
また、図12に示すように、配線器具取付部30がボックス本体23の開口側のみに形成された配線用ボックス20において、第2折取溝12bから軸部11aを折り取って固定用ビス11を雌ねじ部30bに螺合してもよい。このように構成した場合、軸部11aを折り取っていない固定用ビス11を雌ねじ部30bに螺合する場合と異なり、軸部11aが配線用ボックス20内で露出するのが防止される。
【0063】
従って、配線用ボックス20内に収容されたケーブル39や、そのケーブル39と配線器具35との接続部に固定用ビス11が接触したりするおそれをなくすことができる。加えて、配線用ボックス20内に収容されたケーブル39を壁21表側に引き出すとき、ケーブル39が固定用ビス11に絡むのを防止してケーブル39の壁21表への引き出し作業を容易に行うことができる。
【0064】
また、配線器具取付部30と底板24との間に空間を形成して、配線用ボックス20内の空間を広くして余長部を有したケーブル39を収容することができる。
【0065】
・ 図13に示すように、配線用ボックス20の前面側に位置するように胴縁材41を柱22の前面に取り付け、その胴縁材41の前面に実施形態における他方の壁材21bの厚みより厚く形成された壁材21bを配置する。さらに、壁材21bの前面に仕上材42を形成する。そして、各折取溝12a、12bから軸部11aを折り取らず、その固定用ビス11を使用して配線器具35を配線用ボックス20に取り付けてもよい。
【0066】
このように構成した場合、配線用ボックス20の前面に、胴縁材41、厚みの厚い他方の壁材21bや仕上材42等が配置されても固定用ビス11を使用して配線器具35を配線用ボックス20に取り付けることができる。
【0067】
・ 軸部11aに第1折取溝12a又は第2折取溝12bのいずれか一方のみを形成してもよい。固定用ビス11と折取具13とをセットにして施工現場に搬入し、固定用ビス11の使用の際に折取具13を使用してもよい。
【0068】
・ ボックス本体23の各側壁25〜28の少なくともいずれか1つに3箇所に保持突起33を突設し、隣接する保持突起33の間に固定用ビス11の軸部11aを保持させてもよい。
【0069】
さらに、前記実施形態より把握できる技術的思想について以下に記載する。
(1) 前記保持部は一対の分割体を組み合わせることにより構成され、同保持部により保持された配線器具固定用ビスの折取溝より基端側の軸部及び頭部を、各分割体により挟持するように構成した請求項〜請求項のいずれか一項に記載の配線器具固定用ビスの折取具。このように構成した場合、軸部の折り取り作業中に軸部が折取具から抜け出るのを防止して折り取り作業の簡易化を図ることができる。
【0070】
(2) 前記一対の分割体の分離を防止する締付手段を備えた前記(1)に記載の配線器具固定用ビスの折取具。このように構成した場合、軸部を折り取ろうとしたとき締付手段により一対の分割体が分離するのを防止することができる。従って、配線器具固定用ビスを保持部内に確実に保持して軸部の折り取り作業を確実に行うことができる。
【0071】
(3) 前記溝部は断面円形状に形成され、軸部は前記溝部に対応する断面円形状に形成されている請求項又は請求項に記載の配線器具固定用ビスの折取具。このように構成した場合、断面円形状をなす軸部を溝部内に安定した状態で保持することができる。
【0074】
【発明の効果】
以上詳述したように、この発明によれば、次のような効果を奏する。
請求項1に記載の発明の配線器具固定用ビスの折取具によれば、軸部の軸線方向への長さを短くする作業を容易に行うことができる。
【0075】
請求項2に記載の発明の配線器具固定用ビスの折取具によれば、請求項1に記載の発明の効果に加えて、折取溝が複数箇所に形成された軸部を折り取る作業を一体の折取具により行うことができる。
【0076】
請求項3に記載の発明の配線器具固定用ビスの折取具によれば、請求項1又は請求項2に記載の発明の効果に加えて、折取具を使用した軸部の折り取り作業を容易に行うことができる。
【0077】
請求項4に記載の発明の配線器具固定用ビスの折取具によれば、請求項3に記載の発明の効果に加えて、てこの原理を利用して折取具を使用した軸部の折り取り作業の簡易化を図ることができる。
【図面の簡単な説明】
【図1】実施形態の固定用ビスを示す側面図。
【図2】(a)は折取具を示す斜視図、(b)は折取具を一対の分割体に分解した状態を示す分解斜視図。
【図3】実施形態の配線用ボックスを示す部分破断斜視図。
【図4】柱に配線用ボックスを固定した状態を示す側断面図。
【図5】配線用ボックス及び配線器具保持枠を示す分解斜視図。
【図6】配線用ボックスの前面に壁材を設置した状態を示す側断面図。
【図7】折取具に固定用ビスを保持した状態を示す斜視図。
【図8】折取具を一対の分割体に分解した状態を示す分解斜視図。
【図9】配線器具を固定用ビスにより取り付けた状態を示す側断面図。
【図10】別例の折取具を示す斜視図。
【図11】(a)は別例の折取具の各分割体を示す斜視図、(b)は一対の分割体を組付けた状態を示す斜視図。
【図12】別例の配線用ボックスに配線器具を取付けた状態の側断面図。
【図13】別例の配線用ボックスに配線器具を取付けた状態の側断面図。
【符号の説明】
11…配線器具固定用ビス、11a…軸部、11b…頭部、12a…第1折取溝、12b…第2折取溝、13…配線器具固定用ビスの折取具、14…保持部、14a…溝部、20…配線用ボックス、21…壁、23…ボックス本体、30…配線器具取付部、35…配線器具、37…把持部。
[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a wiring fixture fixing screw which is screwed into a wiring fixture mounting portion of a wiring box installed on a wall in a building so that a wiring fixture can be attached to the wiring box.TheThe present invention relates to a folding tool that can be folded.
[0002]
[Prior art]
Conventionally, a wiring box is installed behind the wall to attach a wiring device such as an outlet to a surface of a wall in a building, and the wiring box includes a box body having a bottomed square box shape having an opening. I have. On the bottom plate of the box main body, a pair of wiring fixture fixing screws used when attaching the wiring fixture to the wiring box are held. Further, screw holes are formed at two places on one side wall of the box main body, penetrating the side walls, and screws are fixed to the columns erected on the back side of the wall from the screw holes, so that the wiring box is formed on the column. It can be attached to.
[0003]
Wiring device mounting portions facing the opening side of the box body are formed on the inner surfaces of the upper and lower side walls of the box body so as to face each other. In each wiring device mounting portion, a male screw of the wiring device fixing screw is screwed. A female screw portion in which a female screw that can be engaged is formed is formed. Attachment holes are formed on the front surfaces of the respective wiring device attachment portions, and the screws for fixing the wiring device can be inserted and screwed into the female screw portions from the respective attachment holes. The wiring device holding frame attached to the wiring box while holding the wiring device has a rectangular frame shape, and holes corresponding to the mounting holes are formed at upper and lower ends thereof.
[0004]
Then, in order to attach a wiring device to a wall surface using the wiring box, first, attach the wiring box to a pillar so that the front surface thereof is flush with the front surface of the pillar, and mount the wiring box inside the wiring box. The cable is accommodated in a state where the cable has an extra length with a margin. Next, a wall material is installed in front of the pillar and the wiring box to form a wall. A through hole is made in the wall surface, and the opening of the wiring box is made to face the wall surface side.
[0005]
Next, a wiring device is connected to the cable in the wiring box, and the wiring device is held by the wiring device holding frame. Subsequently, the pair of wiring device fixing screws is removed from the bottom plate, and the wiring device fixing screw is screwed into the female screw portion from the hole of the wiring device holding frame, and the wiring device is wired through the wiring device holding frame. Attach to the box. At this time, since the wiring device fixing screw is held in advance on the bottom plate, the wiring device mounting work is simplified, unlike the case where the wiring device fixing screw is separately prepared. As a result, the wiring device is housed in the wiring box and attached to the wall.
[0006]
The length of the wiring device fixing screw in the axial direction of the shaft portion is set to about 40 mm. This is because when the construction material placed on the front surface of the wiring box is exceptionally thick, for example, the thickness of the wall material is large (eg, 12.5 mm), and a thick finish wall material is separately provided on the surface of the wall material. Even if a frame material (thickness: 15 mm) is installed on the front of the wiring box, screws for fixing the wiring equipment are screwed into the wiring equipment mounting part through each building material. This is to make it possible.
[0007]
[Problems to be solved by the invention]
However, in practice, the above construction materials are rarely installed on the front of the wiring box, and only a plastic board having a thickness of about 3 mm is installed as a wall material, or mud is placed on the front of the wiring box. In some cases, a wall is formed and no wall material is installed. That is, in most cases, the wiring fixture fixing screw can be screwed into the wiring fixture mounting portion even if its length in the axial direction is shorter than 40 mm. Accordingly, even when the axial length of the shaft portion of the wiring device fixing screw does not need to be 40 mm, the wiring device must be attached to the wiring box using the wiring device fixing screw. As a result, there has been a problem that the amount of screwing of the male screw to the female screw portion of the wiring device mounting portion is increased, and the work of mounting the wiring device is very troublesome.
[0008]
In recent housing situations, the thickness of the wall tends to be thin, and a wiring box having a small thickness is used in order to cope with the wall. Therefore, for example, when the thin wiring box (for example, 30 mm in thickness) is used, a mud wall is formed on the front surface of the wiring box, and a screw for fixing the wiring device is screwed into the mounting portion of the wiring device. The tips of the fixing screws protrude from the bottom plate of the box body. As a result, there is a problem that the wiring device fixing screw does not fit in the wall, and the wiring device cannot be mounted on the wall using the thin wiring box.
[0009]
Further, the thin wiring box is formed so as to widen its internal space and accommodate the cable having the extra length. That is, in the wiring box, the wiring device mounting portion is formed only on the front surface of the wiring box and does not extend toward the bottom plate, and a space is formed between the lower end portion of the wiring device mounting portion and the bottom plate. ing.
[0010]
For this reason, when the screw for fixing the wiring device is screwed into the wiring device mounting portion, the screw for fixing the wiring device is exposed in the wiring box. There is a problem that the wiring device fixing screw may come into contact with the connection portion between the cable and the wiring device. In addition, when the cable housed in the wiring box is pulled out to the wall surface side, there is a problem that the cable is entangled with the screw for fixing the wiring device, and it becomes difficult to pull out the cable to the wall surface.
[0011]
The present invention has been made by paying attention to such problems existing in the related art. The purpose is,axisAn object of the present invention is to provide a tool for fixing a wiring device fixing screw, which can easily perform an operation of shortening the length of the portion in the axial direction.
[0013]
[Means for Solving the Problems]
In order to achieve the above object, the invention according to claim 1The tool for fixing the wiring device fixing screw is composed of a shaft portion and a head portion. The coaxial portion can be cut off from the tip side of the shaft portion, and the length of the shaft portion in the axial direction can be shortened. Is provided, and is screwed into a wiring device mounting portion of the wiring box installed in the wall of the building, and the wiring device can be mounted on the wall by attaching the wiring device to the wiring box. In a state in which at least the shaft portion on the distal end side from the breakout groove of the wiring instrument fixing screw to be exposed is provided, a holding portion capable of holding the shaft portion and the head portion on the base end side from the breakout groove is provided, and the holding portion The shaft portion exposed from the holding portion is configured to be able to be cut from the cut groove while holding the shaft portion and the head portion on the base end side from the cut groove.Things.
[0014]
The invention according to claim 2The wiring tool fixing screw folding tool according to claim 1, wherein the holding portion is broken so as to expose each of the breaking grooves provided at a plurality of positions along the axial direction of the shaft portion. It is formed so that the shaft part and the head part on the base end side from the groove can be held stepwiseThings.
[0015]
The invention according to claim 3According to the invention as set forth in claim 1 or claim 2, in the wire tool fixing screw folding tool, the holding portion has a groove portion capable of accommodating a shaft portion and a head portion closer to the base end than the breaking groove.Things.
[0016]
The invention according to claim 4In the invention according to claim 3, the wire tool fixing screw folding tool includes the groove portion on one end side and a grip portion that can be gripped by hand on the other end side.Things.
[0022]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, the present invention is applied to a wiring fixture fixing via.OfAn embodiment embodied in a folding tool will be described in detail with reference to the drawings.
[0023]
As shown in FIG. 1, a screw 11 for fixing a wiring device (hereinafter, simply referred to as fixing screw 11) includes a shaft portion 11a and a head portion 11b having a circular cross section, and the shaft portion 11a has a coaxial portion 11a. Are cut off from the front end side, and cut-off grooves 12a and 12b are provided to make it possible to shorten the axial length of the shaft portion 11a. The axial length of the shaft portion 11a of the fixing screw 11 is set to L1.
[0024]
A male screw is threaded on the outer peripheral surface of the shaft 11a of the fixing screw 11, and the first and second grooves 12a and 12b are formed along the axial direction of the shaft 11a from the tip end of the shaft 11a. Is provided. Each of the groove grooves 12a and 12b is formed in a V-shaped notch along the circumferential direction of the shaft portion 11a, and the portion where the groove grooves 12a and 12b are formed is formed in a direction toward the center line of the shaft portion 11a. It is formed thinner than the part.
[0025]
The length of the shaft 11a in the axial direction is set to L2 by breaking off the distal end side of the shaft 11a from the first groove 12a, and the length of the shaft 11a in the axial direction before the breaking is set. It can be shorter than L1. Further, the length of the shaft 11a in the axial direction is set to L3 by breaking off the distal end side of the shaft 11a from the second groove 12b, and the length of the shaft 11a in the axial direction is set to L3. Can be shorter. Therefore, the length of the fixing screw 11 in the axial direction can be adjusted in two stages.
[0026]
FIG. 2 (a) is a diagram illustrating a tool 13 for fixing the wiring device fixing screw 11 (hereinafter simply referred to as a tool for fixing), which is configured so that the shaft portion 11a of the fixing screw 11 can be cut off from each of the groove 12a and 12b. 13) will be described. The folding tool 13 has the shaft 11a on the proximal side from the first groove 12a and the head with the shaft 11a on the distal side from the first groove 12a and the first groove 12a exposed. 11b is provided. In addition, the shaft 11a and the head 11b on the proximal side from the second groove 12b can be held in a state where the shaft 11a on the distal side from the second groove 12b and the second groove 12b is exposed. It is also provided with a suitable holding portion 14.
[0027]
As shown in FIG. 2B, the holding unit 14 is configured by combining a pair of divided bodies 13a and 13b. The pair of divided bodies 13a and 13b are formed by bending a rectangular metal plate so as to form a receiving groove 15 having a semicircular cross section along a center line extending in the longitudinal direction. . In each of the accommodation grooves 15, a first accommodation hole 16 and a second accommodation hole 17 capable of accommodating the shaft portion 11a and accommodating the head 11b are formed along the length direction of the accommodation groove 15. Have been.
[0028]
In each of the divided bodies 13a and 13b, in a state where the head 11b is housed in the first housing hole 16, the shaft portion 11a from the head 11b to the end of the first split groove 12a on the side of the head 11b is formed in the housing groove 15a. It is to be housed in. At the same time, the end of the first split groove 12a on the head 11b side is located at one end in the length direction of each of the divided bodies 13a and 13b. At this time, the shaft portion 11a on the tip side from the first break-off groove 12a protrudes outward from one end edge of each of the divided bodies 13a and 13b.
[0029]
On the other hand, in each of the divided bodies 13a and 13b, in a state where the head 11b is housed in the second housing hole 17, the shaft portion 11a from the head 11b to the end of the second break groove 12b on the side of the head 11b is housed. It is designed to be accommodated in the groove 15. At the same time, the end of the second groove 12b on the side of the head 11b is located at one end in the length direction of each of the divided bodies 13a and 13b. At this time, the shaft portion 11a on the distal end side from the second groove 12b protrudes outward from one end edges of the divided bodies 13a and 13b. A screw hole 18 is formed on each side of the other end in the length direction of each of the divided bodies 13a and 13b, and a screw 19 as a pair of fastening means for the divided bodies 13a and 13b is screwed into each of the screw holes 18. It has become possible.
[0030]
Then, a screw 19 is screwed into each of the screw holes 18 such that the screw holes 18 of the one divided body 13a correspond to the screw holes 18 of the other divided body 13b. As a result, as shown in FIG. 2A, the holding portion 14 is constituted by the pair of divided bodies 13a and 13b, and the shaft portion 11a and the head 11b are held by the accommodating grooves 15 of the divided bodies 13a and 13b. A groove 14a having a possible circular cross section is formed.
[0031]
Next, the wiring box 20 provided with the fixing screw 11 will be described. As shown in FIG. 5, the wiring box 20 is installed in a wall 21 erected in a building, and the wall 21 is formed by erected a pair of wall materials 21a and 21b so as to face each other. ing. A pillar 22 is erected in front of one wall member 21a, and after attaching the wiring box 20 to the pillar 22, the other wall member 21b is erected in front of the wiring box 20 to form the wall 21. Is formed.
[0032]
As shown in FIG. 3, the wiring box 20 made of synthetic resin includes a box body 23 having a bottomed square box shape having an opening on the front surface (the left side in FIG. 3). The bottom plate 24 of the box main body 23 has a flat rectangular shape, and side walls 25 to 28 corresponding to each side of the bottom plate 24 are formed on the periphery of the bottom plate 24 toward the front (to the left in FIG. 3) with respect to the bottom plate 24. It stands upright. The length of each of the side walls 25 to 28 in the width direction, that is, the thickness of the box body 23 is set to T1.
[0033]
On opposite side portions of the upper and lower side walls 25 and 26 of the box body 23, communication portions 23a communicating with the openings of the box body 23 are formed, and a flat circular shape is formed on an outer edge of each communication portion 23a. None, a wiring through hole 29 through which a cable 39 can be wired is formed. At the center of the inner surfaces of the upper side wall 25 and the lower side wall 26 of the box body 23, wiring device mounting portions 30 extending from the front ends of the upper side wall 25 and the lower side wall 26 to the bottom plate 24 side are integrally formed. A mounting hole 30a is formed on the front surface. As shown in FIG. 4, the mounting hole 30a faces the front opening of the box main body 23, and a female screw into which the male screw of the fixing screw 11 can be screwed into the inner periphery of each wiring device mounting portion 30. A carved female screw portion 30b is formed.
[0034]
Slotted screw holes 31 are formed in the left side wall 27 at three locations at predetermined intervals, and the wiring box 20 is fixed by fixing screws 32 from the screw holes 31 to the columns 22. It can be attached to the pillar 22. As shown in FIG. 3, three holding projections 33 are provided on one side of the upper portion of the bottom plate 24 at regular intervals, and the shaft 11 a of the fixing screw 11 is provided between the adjacent holding projections 33. It can be held. Then, the two fixing screws 11 are held on the bottom plate 24 of the box body 23 by the holding of the shaft portion 11a by the holding protrusions 33, and the wiring box 20 including the fixing screws 11 having the above-described configuration is configured. It has become so. As shown in FIG. 6, the axial length L <b> 1 of the shaft portion 11 a of the fixing screw 11 held by the wiring box 20 is formed longer than the thickness T <b> 1 of the box body 23.
[0035]
The axial length L2 or L3 of the shaft 11a of the fixing screw 11 obtained by breaking the shaft 11a from the first groove 12a or the second groove 12b is equal to the length of the box body 23, respectively. It is shorter than the thickness T1.
[0036]
As shown in FIG. 5, the wiring device holding frame 34 arranged on the front surface of the wiring box 20 has a substantially rectangular frame shape, and the wiring device 35 can be held at the center thereof. Holes 34a are formed at upper and lower ends of the wiring device holding frame 34, and the fixing screws 11 can be inserted from the respective holes 34a into the mounting holes 30a. Then, as shown in FIG. 9, when the male screw of each fixing screw 11 is screwed into the female screw portion 30 b, the wiring device 35 is attached to the box main body 23, that is, the wiring box 20 via the wiring device holding frame 34. And the wiring device 35 can be attached to the wall 21.
[0037]
The method of using the fixing screw 11 will be described below.
First, as shown in FIG. 4, the wiring box 20 is attached to the pillar 22, and a cable 39 is wired in the wiring box 20. Next, as shown in FIG. 5, the other wall member 21b is installed on the front surface of the wiring box 20, the wiring box 20 is arranged between the pair of wall members 21a and 21b, and the wall 21 is formed. Subsequently, a through-hole 36 is formed so that the front opening of the wiring box 20 faces the front side of the other wall member 21b, and the cable 39 in the wiring box 20 is drawn out from the through-hole 36 to the front side of the wall 21. The wiring device 35 is connected to the cable 39, and the wiring device 35 is held by the wiring device holding frame 34.
[0038]
Next, the fixing screws 11 held on the bottom plate 24 of the wiring box 20 are respectively removed from between the holding projections 33. As shown by a two-dot chain line in FIG. 6, the length L1 in the axial direction of the shaft portion 11a of the fixing screw 11 is formed longer than the thickness T1 of the wiring box 20. It hits the wall material 21 a on the back side of the box 20. Therefore, the length L1 of the shaft portion 11a in the axial direction is adjusted.
[0039]
First, as shown in FIG. 2B, in one of the divided bodies 13a, the head 11b of the fixing screw 11 is accommodated in the second accommodation hole 17 and the shaft 11a is accommodated in the accommodation groove 15. At this time, in the second groove 12b, the edge on the head 11b side is located at one edge of the divided body 13a. Next, the other divided body 13b is arranged on one divided body 13a, and a screw 19 is screwed into each screw hole 18. Then, as shown in FIG. 7, the holding part 14 and the groove part 14a are formed by the pair of divided bodies 13a and 13b, and the folding tool 13 is configured. The head 11b of the fixing screw 11 and the head 11b side of the second cutting groove 12b are accommodated in the groove 14a of the folding tool 13, and the fixing screw 11 is held by the holding portion 14. At the same time, the shaft portion 11a on the distal end side from the second groove 12b is exposed outside the one end edge of the folding tool 13.
[0040]
Subsequently, while gripping the other end side of the folding tool 13 by hand, the shaft 11a is gripped by a plier (not shown), and one end edge of the folding tool 13 is used as a fulcrum. Is bent in the direction indicated by the arrow in FIG. At this time, the fixing screw 11 is sandwiched between the pair of divided bodies 13a and 13b, and is housed in the groove 14a having a circular cross section corresponding to the cross sectional shape of the shaft 11a. In addition, the pair of divided bodies 13a and 13b are fastened by the screws 19. Therefore, at the time of bending the shaft portion 11a, separation of the pair of divided bodies 13a and 13b is prevented, and the shaft portion 11a is prevented from being held by the holding portion 14 and moving in the breaker 13. . Then, since the second groove 12b is formed thinner than the other portions, the tip end side of the shaft portion 11a is cut off from the second groove 12b.
[0041]
Thereafter, as shown in FIG. 8, the screw 19 is screwed out of each screw hole 18, and the pair of divided bodies 13a and 13b are disassembled to take out the fixing screw 11. As a result, as shown by a two-dot chain line in FIG. 8, the shaft portion 11a on the tip side from the second groove 12b is cut off. Then, the length of the shaft portion 11a in the axial direction is formed to be shorter by the length of the cut-off portion, and the fixing screw 11 in which the length of the shaft portion 11a in the axial direction is set to L3 is obtained. This operation is similarly performed on the other fixing screw 11.
[0042]
Then, as shown in FIG. 9, the male screw of the fixing screw 11 is screwed from each hole 34 a of the wiring device holding frame 34 to the female screw portion 30 b of the wiring device mounting portion 30. At this time, the screwing amount of the male screw of the shaft portion 11a with respect to the female screw portion 30b is smaller than that of the fixing screw 11 before the shaft portion 11a is cut off. As a result, the wiring tool holding frame 34 is mounted on the front side of the wall 21, and the wiring tool 35 is mounted on the front side of the wall 21. Also, since the fixing screw 11 has the shaft portion 11a cut off, the axial length L3 of the shaft portion 11a is shorter than the thickness T1 of the wiring box 20, and the fixing screw 11 is From the bottom plate 24 is prevented.
[0043]
The effects exerted by the above embodiment will be described below.
(1) The length L1 in the axial direction of the shaft portion 11a before the breaking can be easily shortened by breaking off the tip side of the shaft portion 11a from the second breaking groove 12b. Therefore, unlike the fixing screw 11 before the shaft portion 11a is cut off, the amount of screwing the male screw of the fixing screw 11 into the female screw portion 30b can be reduced, and the wiring device 35 via the wiring device holding frame 34 The work of attaching to the wall 21 can be simplified.
[0044]
(2) The length of the shaft portion 11a in the axial direction is set to L2 or L3 by breaking off the tip end side of the shaft portion 11a from the first break groove 12a or the second break groove 12b, and the axis of the shaft portion 11a is formed. The length in the direction can be shorter than the thickness T1 of the wiring box 20. Therefore, when the wiring device holding frame 34 is attached to the wiring box 20 using the fixing screws 11, it is possible to prevent the fixing screws 11 from projecting to the back side of the bottom plate 24 and hitting one wall member 21a. it can. Therefore, it is possible to eliminate a problem that the fixing screw 11 does not fit in the wall 21 and the wiring box 35 cannot be attached to the wall 21 using the wiring box 20.
[0045]
(3) Each of the groove grooves 12a and 12b is formed in a V-shaped cross section so as to become thinner toward the center line of the shaft portion 11a. Therefore, the shaft 11a can be easily cut off from each of the groove grooves 12a and 12b as compared with the case where each of the groove grooves 12a and 12b is formed to have a U-shaped cross section.
[0046]
(4) Since the first and second grooves 12a and 12b are formed in the shaft portion 11a, the length of the shaft portion 11a in the axial direction is changed according to the thickness of the other wall member 21b. be able to. Therefore, unlike the case where the fixing screw that cannot be folded is provided in the wiring box 20, it is possible to cope with the thicknesses of the other three types of wall materials 21b. Therefore, it is possible to save the trouble of separately preparing fixing screws in which the axial length L1 of the shaft portion 11a is set to a plurality of types. Further, the amount of screwing the male screw of the fixing screw 11 into the female screw portion 30b is not increased, so that the work of attaching the wiring device 35 can be simplified.
[0047]
(5) Since the fixing screw 11 is held in advance in the wiring box 20 installed in the wall 21, there is no need to separately prepare the fixing screw 11 when mounting the wiring device 35, and the wiring device 35 is mounted. Work can be speeded up.
[0048]
(6) The folding operation of the fixing screw 11 from each of the groove 12a and 12b is performed using the folding tool 13. Therefore, unlike the case where the fixing screw 11 is cut off by hand, the cutting operation can be simplified.
[0049]
(7) Since the fixing screw 11 is sandwiched between the pair of divided bodies 13a and 13b, the shaft 11a is prevented from coming out of the breaker 13 during the work of breaking the shaft 11a, thereby simplifying the work. Can be achieved.
[0050]
(8) Since the pair of divided bodies 13a and 13b holding the fixing screw 11 are tightened by the screws 19, it is possible to prevent the pair of divided bodies 13a and 13b from separating when the shaft part 11a is to be broken off. it can. Accordingly, the fixing screw 11 can be securely held in the groove 14a, and the shaft 11a can be reliably cut off.
[0051]
(9) Since the groove 14a has a circular cross section corresponding to the shaft 11a having a circular cross section, the shaft 11a can be stably held in the groove 14a.
(10) When the fixing screw 11 is housed in the groove portion 14a and held by the holding portion 14, the edge of the first or second breaking groove 12a, 12b on the head 11b side is located at one end edge of the breaking tool 13. It is formed so that it may be located. Therefore, the shaft portion 11a can be easily cut off from the first cut-out groove 12a or the second cut-out groove 12b by using the integrated cut-off device 13, and the folding corresponding to each of the cut-off grooves 12a, 12b. Unlike the case where the fixtures 13 are separately prepared, the slicing operation can be simplified.
[0052]
(11) The holding portion 14 is formed so as to be able to hold the shaft portion 11a and the head portion 11b of the fixing screw 11. For this reason, the fixing screw 11 is held by the holding portion 14, and the fixing screw 11 is prevented from moving in the groove portion 14a when the shaft portion 11a is to be cut off, and the shaft portion 11a can be easily cut off. be able to.
[0053]
(12) Since the other end side of the folding tool 13 is gripped and the tip end side of the shaft portion 11a is bent with one edge as a fulcrum, the shaft portion 11a can be easily bent by the principle of leverage, and The folding operation can be easily performed.
[0054]
This embodiment can be embodied with the following modifications..
[0055]
As shown in FIG. 10, the folding tool 13 is formed in a rectangular parallelepiped shape so that its thickness is larger than the diameter of the head 11 b of the fixing screw 11. A groove 14a deeper than the diameter of the head 11b is recessed, and first and second receiving holes 16, 17 are formed in the groove 14a. Further, when the shaft 11a and the head 11b of the fixing screw 11 are housed in the groove 14a and the first or second housing holes 16 and 17 from above, the breaking grooves 12a and 12b , And is formed so as to be located at one end edge of the folding tool 13. A gripping portion 37 that can be gripped by hand is formed on the other end side of the folding tool 13, and the blade portion of the cutter knife can be held on the upper surface of the gripping portion 37 so that the blade portion can be held. The holding groove 40 is formed.
[0056]
When using the folding tool 13 shown in FIG. 10, first, as shown by a two-dot chain line in FIG. 10, the groove 14 a and the first or second accommodation holes 16 and 17 are inserted from above the folding tool 13. The shaft 11a and the head 11b of the fixing screw 11 are accommodated. Next, as shown by an arrow in FIG. 10, the distal end side of the shaft portion 11a is bent in a direction orthogonal to the accommodation direction of the fixing screw 11 in the groove portion 14a, that is, in one of the inner wall surfaces of the groove portion 14a. Then, the shaft portion 11a can be easily cut off from the first cutout groove 12a or the second cutout groove 12b with the inner side wall of the groove portion 14a as a fulcrum. Since the shaft portion 11a is bent in the direction of the inner wall of the groove portion 14a, the fixing screw 11 is prevented from coming out of the groove portion 14a upward, so that the shaft portion 11a can be efficiently cut off.
[0057]
As shown in FIG. 11A, the other ends of the pair of divided bodies 13a and 13b are connected to each other by a connecting piece 38 to be integrated. Then, as shown in FIG. 11 (b), the two divided bodies 13a and 13b are rotated so as to approach each other to form the holding portion 14. In addition, the groove 14a is formed by the both accommodation grooves 15 and the folding tool 13 is formed. May be configured.
[0058]
As a fastening means for the pair of divided bodies 13a, 13b, the pair of divided bodies 13a, 13b may be tightened by a clip, a bolt is inserted into the screw hole 18, and a nut is screwed to the bolt to split the pair of divided bodies 13a, 13b. The bodies 13a, 13b may be tightened.
[0059]
The respective grooves 12a, 12b may not be formed in the shape of a V-groove, but may be cut out, for example, in a semicircular cross section or a U-shaped cross section.
In the breaker 13, when the first housing hole 16 is omitted and only the second housing hole 17 is formed, and the fixing screw 11 is held in the groove 14 a, the second breaker groove 12 b is formed by the breaker 13. May be located at one edge. Alternatively, when the second accommodation hole 17 is omitted and only the first accommodation hole 16 is formed and the fixing screw 11 is held in the groove portion 14a, the first take-off groove 12a is located at one edge of the take-off device 13. You may do so. Further, in each of the divided bodies 13a and 13b, in addition to the first and second housing holes 16 and 17, another housing hole may be formed, and three or more housing holes may be provided.
[0060]
-One end edge of each of the divided bodies 13a, 13b is located between the end edge of the first or second split groove 12a or 12b on the head 11b side and the distal end of the shaft portion 11a. The shaft 11a may be formed with the first groove 12a or the second groove 12b. Alternatively, the first split groove 12a or the first split groove 12a or 13b is formed on the shaft portion 11a such that one end edge of each of the divided bodies 13a and 13b is located at the front end edge of the shaft portion 11a of the first split groove 12a or the second split groove 12b. The second breaking groove 12b may be formed.
[0061]
As shown in FIG. 12, a wall material 21b formed to be thicker than the other wall material 21b in the embodiment is arranged on the front surface of the wiring box 20, and the shaft portion 11a is cut off from the second groove 12b. The fixing screw 11 may be attached to the wiring device attaching portion 30 from the front side of the other wall material 21b using the fixing screw 11 that has been used.
[0062]
As shown in FIG. 12, in the wiring box 20 in which the wiring device mounting portion 30 is formed only on the opening side of the box main body 23, the shaft portion 11 a is cut off from the second cut-out groove 12 b to fix the fixing screw 11. May be screwed into the female screw portion 30b. With this configuration, unlike the case where the fixing screw 11 in which the shaft portion 11a is not broken off is screwed into the female screw portion 30b, the shaft portion 11a is prevented from being exposed in the wiring box 20.
[0063]
Accordingly, it is possible to eliminate the possibility that the fixing screw 11 comes into contact with the cable 39 accommodated in the wiring box 20 or the connection portion between the cable 39 and the wiring device 35. In addition, when pulling out the cable 39 accommodated in the wiring box 20 to the front side of the wall 21, the cable 39 is prevented from being entangled with the fixing screw 11, and the cable 39 can be easily drawn out to the front side of the wall 21. be able to.
[0064]
In addition, a space is formed between the wiring device mounting portion 30 and the bottom plate 24, so that the space in the wiring box 20 is widened to accommodate the cable 39 having an extra length.
[0065]
As shown in FIG. 13, a frame member 41 is attached to the front surface of the pillar 22 so as to be located on the front side of the wiring box 20, and the thickness of the other wall member 21 b in the embodiment is provided on the front surface of the column member 41. The thicker wall material 21b is arranged. Further, a finishing material 42 is formed on the front surface of the wall material 21b. Then, the wiring device 35 may be attached to the wiring box 20 using the fixing screw 11 without breaking the shaft portion 11a from each of the groove 12a and 12b.
[0066]
In the case of such a configuration, even if the body edge material 41, the other thick wall material 21b, the finishing material 42, and the like are arranged on the front surface of the wiring box 20, the wiring device 35 is fixed using the fixing screw 11. It can be attached to the wiring box 20.
[0067]
-Either one of the first groove 12a and the second groove 12b may be formed in the shaft portion 11a. The fixing screw 11 and the folding tool 13 may be carried as a set to a construction site, and the fixing tool 11 may be used when the fixing screw 11 is used.
[0068]
-At least one of the side walls 25 to 28 of the box main body 23 may be provided with three holding projections 33 at three locations, and the shaft 11a of the fixing screw 11 may be held between the adjacent holding projections 33. .
[0069]
Further, technical ideas that can be grasped from the embodiment will be described below.
(1) The holding unit is configured by combining a pair of divided bodies, and the shaft part and the head on the base end side from the groove of the screw for fixing the wiring device held by the holding unit are separated by each divided body. Claims configured to pinch1~ Claim4The tool for fixing the wiring device fixing screw according to any one of the above items. With this configuration, it is possible to prevent the shaft portion from coming out of the folding tool during the work of breaking the shaft portion, thereby simplifying the work of breaking the shaft portion.
[0070]
(2) The tool for fixing a wiring device fixing screw according to (1), further comprising a fastening unit that prevents separation of the pair of divided bodies. With this configuration, it is possible to prevent the pair of divided bodies from being separated from each other by the fastening means when the shaft portion is to be broken off. Therefore, the wiring device fixing screw can be securely held in the holding portion, and the shaft portion can be reliably cut off.
[0071]
(3) The groove is formed in a circular cross section, and the shaft is formed in a circular cross section corresponding to the groove.3Or claims4A tool for fixing a screw for fixing a wiring device according to (1). With such a configuration, the shaft portion having a circular cross section can be stably held in the groove portion.
[0074]
【The invention's effect】
As described above, according to the present invention, the following effects can be obtained.
The invention according to claim 1According to the tool for fixing the wiring device fixing screw, the operation of shortening the axial length of the shaft portion can be easily performed.
[0075]
The invention according to claim 2According to the tool for fixing the wiring device fixing screw, in addition to the effect of the first aspect of the present invention, the work of folding the shaft portion having the plurality of breaking grooves formed by the integrated tool is performed. be able to.
[0076]
The invention according to claim 3According to the tool for fixing the wiring device fixing screw, in addition to the effect of the invention described in claim 1 or 2, it is possible to easily perform the work of cutting off the shaft portion using the tool.
[0077]
The invention according to claim 4According to the tool for fixing the wiring device fixing screw, in addition to the effect of the invention described in claim 3, the principle of leverage is used to simplify the work of cutting off the shaft portion using the tool. be able to.
[Brief description of the drawings]
FIG. 1 is a side view showing a fixing screw according to an embodiment.
FIG. 2A is a perspective view showing a folding tool, and FIG. 2B is an exploded perspective view showing a state where the folding tool is disassembled into a pair of divided bodies.
FIG. 3 is a partially cutaway perspective view showing the wiring box of the embodiment.
FIG. 4 is a side sectional view showing a state where a wiring box is fixed to a pillar.
FIG. 5 is an exploded perspective view showing a wiring box and a wiring tool holding frame.
FIG. 6 is a side sectional view showing a state where a wall material is installed on the front surface of the wiring box.
FIG. 7 is a perspective view showing a state in which fixing screws are held by a folding tool.
FIG. 8 is an exploded perspective view showing a state in which the folding tool is disassembled into a pair of divided bodies.
FIG. 9 is a side sectional view showing a state in which the wiring device is attached with fixing screws.
FIG. 10 is a perspective view showing another example of a folding tool.
11A is a perspective view showing each divided body of another example of the folding tool, and FIG. 11B is a perspective view showing a state where a pair of divided bodies are assembled.
FIG. 12 is a side sectional view showing a state in which a wiring device is attached to another example of a wiring box.
FIG. 13 is a side sectional view showing a state where a wiring device is attached to another wiring box.
[Explanation of symbols]
11: Wiring fixture fixing screw, 11a: Shaft, 11b: Head, 12a: First break groove, 12b: Second break groove, 13: Wiring tool fixing screw fixing tool, 14: Holder , 14a: groove portion, 20: wiring box, 21: wall, 23: box body, 30: wiring device mounting portion, 35: wiring device, 37: gripping portion.

Claims (4)

軸部と頭部とよりなり、前記軸部には同軸部を先端側から折り取り、当該軸部の軸線方向への長さを短くすることを可能とする折取溝が設けられて、建築物の壁内に設置された配線用ボックスの配線器具取付部に螺合され、前記配線用ボックスに配線器具を取り付けて壁面に配線器具を取付可能とする配線器具固定用ビスの少なくとも折取溝より先端側の軸部を露出させた状態で、当該折取溝より基端側の軸部及び頭部を保持可能な保持部を備え、保持部により前記折取溝より基端側の軸部及び頭部を保持した状態で、保持部から露出した軸部を折取溝から折り取り可能に構成した配線器具固定用ビスの折取具。A shaft portion and a head portion, wherein the shaft portion is provided with a groove for breaking off the coaxial portion from the front end side and shortening the axial length of the shaft portion; At least a groove for fixing a wiring device, which is screwed into a wiring device mounting portion of a wiring box installed in the wall of the object, and which allows the wiring device to be mounted on the wall by mounting the wiring device on the wiring box; In a state where the shaft portion on the more distal side is exposed, a holding portion capable of holding a shaft portion and a head portion on the base end side from the groove is provided, and the shaft portion on the base side from the groove is provided by the holding portion And a tool for fixing a wiring device fixing screw, wherein the shaft portion exposed from the holding portion can be cut off from the cutout groove while holding the head portion. 前記保持部は軸部の軸線方向に沿って複数箇所に設けられた各折取溝を露出可能とすべく折取溝より基端側の軸部及び頭部を段階的に保持可能に形成されている請求項1に記載の配線器具固定用ビスの折取具。The holding portion is formed so as to be able to hold the shaft portion and the head portion closer to the base end side than the breaking groove in a stepwise manner so that the breaking grooves provided at a plurality of positions along the axial direction of the shaft portion can be exposed. The tool for fixing a screw for fixing a wiring device according to claim 1, wherein: 前記保持部は折取溝より基端側の軸部及び頭部を収容可能な溝部を備えている請求項1又は請求項2に記載の配線器具固定用ビスの折取具。The tool according to claim 1, wherein the holding portion includes a groove that is capable of accommodating a shaft portion and a head portion closer to the base end than the groove. 一端側に前記溝部を備え、他端側に手で把持可能な把持部を備えている請求項3に記載の配線器具固定用ビスの折取具。4. The tool for fixing a wiring device fixing screw according to claim 3, wherein the groove portion is provided on one end side, and a grip portion that can be gripped by hand is provided on the other end side.
JP2000179472A 2000-06-15 2000-06-15 Wiring fixture fixing tool Expired - Fee Related JP3566185B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2000179472A JP3566185B2 (en) 2000-06-15 2000-06-15 Wiring fixture fixing tool

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2000179472A JP3566185B2 (en) 2000-06-15 2000-06-15 Wiring fixture fixing tool

Related Child Applications (1)

Application Number Title Priority Date Filing Date
JP2003385572A Division JP4176618B2 (en) 2003-11-14 2003-11-14 Wiring box with screws for fixing wiring equipment

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JP2002010430A JP2002010430A (en) 2002-01-11
JP3566185B2 true JP3566185B2 (en) 2004-09-15

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006153050A (en) * 2004-11-25 2006-06-15 Hiroyasu Minayoshi Fastening fitting for connecting rod and tool for cutting its screw part
JP4695619B2 (en) * 2007-04-16 2011-06-08 旭化成ホームズ株式会社 Intermediate member reinforcement structure

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