JP3674272B2

JP3674272B2 - TV terminal

Info

Publication number: JP3674272B2
Application number: JP32099097A
Authority: JP
Inventors: 徹山田; 寛梅山
Original assignee: Matsushita Electric Works Ltd
Current assignee: Panasonic Electric Works Co Ltd
Priority date: 1997-11-21
Filing date: 1997-11-21
Publication date: 2005-07-20
Anticipated expiration: 2017-11-21
Also published as: JPH11154567A

Description

【０００１】
【発明の属する技術分野】
本発明は、ケーブルテレビ（ＣＡＴＶ）用のテレビターミナルに関するものである。
【０００２】
【従来の技術】
この種のテレビターミナルとしては、同軸ケーブルが接続される導電材料から形成されたコネクタ部と、前面が略矩形状に形成されるとともに施工面に固定される取付枠に結合される取付け部を有する器具本体とを備えたものがあった。このコネクタ部の一端側には同軸コネクタであるＦ型接栓の受け口が設けられ、コネクタ部の他端側には同軸ケーブルが結線される端子部が設けられている。ここで、Ｆ型接栓の受け口は器具本体の前面側に露出し、端子部は器具本体の背面側に端子部の中心線が器具本体の短辺側の側面及び前面に対して夫々平行となるようにして配置されていた。
【０００３】
【発明が解決しようとする課題】
上記構成のテレビターミナルでは、端子部に接続された同軸ケーブルは端子部の中心線の方向、すなわち、器具本体の短辺側の側面及び背面に対して夫々平行な方向に伸びるので、同軸ケーブルが埋込ボックスや他の配線器具と干渉して、配線作業がやりにくいという問題があった。
【０００４】
本発明は上記問題点に鑑みて為されたものであり、その目的とするところは、施工性を改善したテレビターミナルを提供することにある。
【０００５】
【課題を解決するための手段】
上記目的を達成するために、請求項１の発明では、同軸コネクタの受け口及び前記受け口に電気的に接続されるとともに同軸ケーブルが接続される端子部を有するコネクタ部と、前面が略矩形状に形成されるとともに施工面に固定される取付枠に結合される取付け部を有する器具本体とを備え、当該器具本体を規格化された３個用の取付枠に３個まで取り付け可能な単位寸法の配線器具と略同じ寸法に形成して、前記受け口を器具本体の前面側に露出させるとともに、前記端子部を器具本体の背面側に配置し、前記端子部の中心線を器具本体の側面に対して傾斜させるとともに器具本体の前面に対して略平行にして、端子部を器具本体の前面側から見た投影面内に収めたことを特徴とする。この発明によれば、端子部に接続された同軸ケーブルが端子部の中心線の方向に引き出されるので、このテレビターミナルを埋込ボックスに収納する際に、端子部に接続された同軸ケーブルは器具本体の側面に対して傾斜させた状態で引き出されるため、埋込ボックスのリブに同軸ケーブルが干渉するのを防止でき、しかも端子部に接続された同軸ケーブルは器具本体の前面に対して略平行となっているので、テレビターミナルと埋込ボックスの底面との間に広い空間を確保することができ、埋込ボックスへの収納を容易にすることができる。さらに、器具本体を配線器具の単位寸法と略同じ寸法に形成し、端子部を器具本体の前面側から見た投影面内に収めているので、テレビターミナルを他の配線器具と連設する際に、端子部が他の配線器具と干渉するのを防ぐことができ、取付枠に複数のテレビターミナルを連設したり、他の配線器具とともに連設することができる。
【０００６】
請求項２の発明では、請求項１の発明において、取付け部は、規格化された取付枠に設けた係止孔と係止離脱自在に係止する係止爪片であり、請求項３の発明では、取付け部は、規格化された取付枠に設けた保持爪が嵌合される結合凹所であるので、器具本体を取付枠に容易に取り付けることができる。
請求項４の発明では、請求項１乃至３の発明において、取付け部の取付寸法は、規格化された３個用の取付枠に３個まで取り付け可能な単位寸法の配線器具と略等しい取付寸法であるので、既成の取付枠を用いてテレビターミナルを埋込配線することができる。
【０００８】
請求項５の発明では、請求項１の発明において、前記端子部が同軸コネクタが接続される被接続部からなっているので、同軸ケーブルを端子部にかしめ固定する場合に比べて、同軸ケーブルの内部導体のむき代が作業者によってばらつくことがなく、内部導体と端子部とを確実に接触させることができ、コネクタ部の特性のばらつきを抑制できる。
【０００９】
請求項６の発明では、請求項１の発明において、器具本体の背面側を覆う裏カバーを設けているので、器具本体の背面を隠すことにより、見栄えを良くすることができる。
請求項７の発明では、請求項１の発明において、器具本体は、器具本体の背面側から同軸コネクタの受け口が挿入される挿入孔を備え、同軸コネクタの受け口の付け根に突起を設けるとともに、前記挿入孔の周面に前記突起と嵌合する溝を設けており、突起と溝とを嵌合させることによってコネクタ部と器具本体とのがたつきが少なくなるので、同軸コネクタの受け口に同軸コネクタを取り付ける力によって、コネクタ部が動くのを防止できる。
【００１０】
請求項８の発明では、請求項１の発明において、器具本体は、器具本体の背面側から同軸コネクタの受け口が挿入される挿入孔を備え、同軸コネクタの受け口に同軸コネクタが接続されるねじ部を設け、前記ねじ部の周面を平行な二面で切り落とし、前記挿入孔の断面形状を前記ねじ部の円周方向の断面形状と略同じ形状に形成しており、同軸コネクタの受け口と挿入孔との隙間が小さくなり、コネクタ部と器具本体とのがたつきが少なくなるので、同軸コネクタの受け口に同軸コネクタを取り付ける力によって、コネクタ部が動くのを防止できる。
【００１１】
請求項９の発明では、請求項１の発明において、コネクタ部の器具本体と接触する部位に凹部を設けるとともに、器具本体に前記凹部と嵌合する凸部を設けており、凹部と凸部とを嵌合させることによって、コネクタ部と器具本体とのがたつきを少なくすることができるので、同軸コネクタの受け口に同軸コネクタを取り付ける力によって、コネクタ部が動くのを防止できる。
【００１２】
請求項１０の発明では、請求項９の発明において、前記凸部の側面に補強用のリブを設けているので、同軸コネクタの受け口に同軸コネクタを取り付ける力によって、凸部が破損するのを防止できる。
【００１３】
【発明の実施の形態】
以下、本発明の実施の形態を図面を参照して説明する。
本実施形態のテレビターミナルは、図１（ａ）〜（ｆ）に示すように、同軸コネクタが接続されるコネクタ部１と、コネクタ部１が配設される器具本体４とから構成される。
【００１４】
器具本体４は合成樹脂製であり、図２（ａ）〜（ｅ）に示すように、背面が開口する略箱状に形成され、前面が略矩形状に形成されている。器具本体４の前面には、直方体状の突台４ａが形成され、突台４ａの両側には突台４ａよりも一段低くなった段部４ｂが形成されている。各段部４ｂの側縁には側方に突出する一対の係止爪片５ａが夫々形成され、各段部４ｂには側方に開口する結合凹所５ｂが夫々形成されており、係止爪片５ａ及び結合凹所５ｂから取付け部が構成される。突台４ａの略中央には断面円形の凹所１２が設けられ、凹所１２の底面には器具本体４の前面側と背面側とを連通する挿入孔たる孔６が穿設されている。また、両段部４ｂの裏面には夫々２個の圧着部１１が突設されており、図１（ｆ）に示すように、例えばシート材を打ち抜いて加工された裏カバー１３の孔（図示せず）に圧着部１１を夫々挿入して圧着することにより、裏カバー１３が器具本体４の背面に固定される。したがって、裏カバー１３により器具本体４の背面を隠すことができ、テレビターミナルＡの見栄えを良くすることができる。尚、この裏カバー１３に例えばＦ型接栓の加工寸法を表示することにより、銘板を別途設ける必要がなく、テレビターミナルＡのコストダウンを図ることができる。
【００１５】
コネクタ部１は、図３及び図４に示すように、導電性材料から略直方体状に形成されたボディ２０を有し、ボディ２０の一面には同軸コネクタたるＦ型接栓の受け口２が突設され、ボディ２０の受け口２を設けた面と略直交する面には、同軸コネクタが接続される被接続部からなる端子部３が形成されており、受け口２の中心線と端子部３の中心線とは略直交している。受け口２及び端子部３は夫々略円筒状に形成され、その周面には例えばＦ型接栓のプラグが螺着されるねじ部２１，２２が形成されている。また、受け口２及び端子部３の端部には夫々絶縁体２４，２４が配設されており、絶縁体２４，２４には夫々Ｆ型接栓の内部導体が挿通される挿通孔２３，２３が形成され、挿通孔２３，２３の奥には挿通孔２３，２３を介して挿通されたＦ型接栓の内部導体を挟持する導電性材料から形成されたばね体２５，２５が配設されている。ここで、各ばね体２５は絶縁体２４，２６を介してボディ２０に固定されており、ボディ２０とばね体２５，２５とは電気的に絶縁されている。また、ばね体２５，２５は例えば半田付けにより互いに電気的に接続されている。而して、受け口２及び端子部３に夫々接続されたＦ型接栓の外部導体はボディ２０を介して電気的に接続され、その内部導体はばね体２５，２５を介して電気的に接続される。尚、ボディ２０の角には面取り３０が施されており、コネクタ部１を器具本体４に取り付けた際に、器具本体４の前面側から見た投影面内よりコネクタ部１がはみ出すのを防いでいる。
【００１６】
ところで、コネクタ部１では、受け口２の付け根に円周方向に突出する突起２７，２７が突設されており、ねじ部２１の周面にはねじ部２１の周面を平行な二平面で切り取った所謂Ｈカット部２８が形成されている。また、コネクタ部１の器具本体４と接触する部位には凹部２９が形成されている。
一方、コネクタ部１の受け口２が挿入される器具本体４の孔６の周面には突起２７と嵌合する溝７が形成されるとともに、孔６の周面に互いに平行な平面部８が形成され、孔６の断面形状はねじ部２１の円周方向の断面形状と略同じ断面形状に形成されている。また、器具本体４の背面には、コネクタ部１の受け口２を孔６に挿入する際に、コネクタ部１に形成された凹部２９と嵌合する凸部９が突設されており、凸部９の側面には補強用のリブ１０が形成されている。ここに、コネクタ部１を器具本体４に取り付ける際に、端子部３の中心線が器具本体４の短辺側の側面に対して約２５度傾斜した状態で、コネクタ部１が器具本体４に取り付けられるように、凸部９は器具本体４の短辺側の側面に対して所定の角度だけ傾斜させて形成される。なお、本実施形態では器具本体４の短辺側の側面に対するコネクタ部１の傾斜角度を約２５度としているが、コネクタ部１の傾斜角度を約２５度に限定する趣旨のもではなく、埋込ボックスへの配設が容易になるような傾斜角度にコネクタ部１の傾斜角度を設定すれば良い。
【００１７】
以下にコネクタ部１を器具本体４に取り付ける手順について説明する。まず、Ｆ型接栓の受け口２を器具本体４の背面側から孔６内に挿入し、受け口２の付け根に突設された突起２７を孔６に形成された溝７と嵌合させるとともに、器具本体４の背面に突設された回り止め用の凸部９をコネクタ部１の凹部２９と嵌合させる。そして、器具本体４の前面側に露出したＦ型接栓の受け口２にワッシャ１７を挿入し、Ｆ型接栓の受け口２の周面に刻設されたねじ部２１にナット１８を螺入して、コネクタ部１とナット１８との間に器具本体４を挟持することにより、コネクタ部１を器具本体４に固定する。この時、コネクタ部１の突起２７が器具本体４の溝７と嵌合するとともに、コネクタ部１の凹部２９が器具本体４の凸部９と嵌合し、さらにコネクタ部１のねじ部２１と孔６とが嵌合するので、コネクタ部１と器具本体４との結合が強くなり、コネクタ部１のがたつきが小さくなる。したがって、器具本体４の前面に配設されたＦ型接栓の受け口２にＦ型接栓を接続し、スパナなどの工具を用いて強い力でＦ型接栓を締め付けたとしても、コネクタ部１と器具本体４とのがたつきが小さいので、Ｆ型接栓５１の締め付け力によってコネクタ部１が回転することがない。また、凸部９には補強用のリブ１０が設けられているので、Ｆ型接栓５１の締め付け力によって凸部９が破損することはない。
【００１８】
このテレビターミナルＡを、図５に示すように、合成樹脂製の３個用の取付枠４２に取り付ける場合、取付枠４２の両側片４３に対向して設けられた係止孔４４に器具本体４の係止爪片５ａを係止させることによって、器具本体４は取付枠４２に取り付けられ、取付枠４２の両側片４３及び上下片で囲まれる開口から突台４ａが露出する。一方、金属製の取付枠（図示せず）にテレビターミナルＡを取り付ける場合は、金属製の取付枠に設けられた保持爪を結合凹所５ｂに嵌合させることによって、器具本体４が取付枠に取り付けられる。係止爪片５ａ及び結合凹所５ｂの取付寸法は、それぞれ、埋込配線用の大角型連用配線器具を埋込ボックスに取り付ける場合に用いるＪＩＳ規格（ＪＩＳＣ８３５７等参照）で規格化された３個用の取付枠に３個まで取り付け可能な単位寸法の配線器具と略等しい取付寸法に形成されており、器具本体４の外形寸法も配線器具の単位寸法（１個モジュール寸法）と略同じ大きさに形成されているので、複数のテレビターミナルＡを取付枠に取り付けたり、テレビターミナルＡを他の配線器具と共に取付枠に取り付けることができる。
【００１９】
ここで、ＣＡＴＶ局やアンテナ側の同軸ケーブル又は受像器側の同軸ケーブルを、夫々、Ｆ型接栓の受け口２又は端子部３に接続する場合、同軸ケーブル５０，５０の端部に設けられたＦ型接栓のプラグ５２，５２を受け口２又は端子部３に夫々差し込む。Ｆ型接栓のプラグ５２，５２の外周部には夫々ナット５１，５１が回転自在に取り付けられており、ナット５１，５１をＦ型接栓の受け口２又は端子部３のねじ部２１，２２に夫々螺入することによって、同軸ケーブル５０，５０がＦ型接栓の受け口２又は端子部３に夫々接続され、同軸ケーブル５０，５０が互いに電気的に接続される。このように、本実施形態のテレビターミナルＡでは、受け口２及び端子部３に夫々Ｆ型接栓を接続しているので、端子部３に同軸ケーブルを直接接続する場合に比べて、同軸ケーブルの内部導体のむき代がばらつくことがなく、コネクタ部１の特性のばらつきが少なくなり、Ｆ型接栓の内部導体とコネクタ部１のばね体２５とを確実に接触させることができる。
【００２０】
ところで、このテレビターミナルＡは、図６に示すように、端子部３の中心線を器具本体４の短辺側の側面に対して傾斜させているので、端子部３に接続された同軸ケーブル５０も端子部３の中心線の方向、すなわち、器具本体４の短辺側の側面に対して傾斜した方向に引き出される。ところで、埋込ボックス４０の上下辺には、取付枠を固定するためのボックスねじのねじ孔が形成されたリブ４１，４１が設けられているが、同軸ケーブル５０は器具本体４の短辺側の側面に対して傾斜した方向に引き出されているので、取付枠を介してテレビターミナルＡを樹脂製の埋込ボックス４０内に配設される場合に、同軸ケーブル５０がリブ４１，４１と干渉することがなく、同軸ケーブル５０を埋込ボックス４０内に収納しやすくなっている。また、端子部３の中心線を器具本体４の短辺側の側面に対して傾斜させることにより、コネクタ部１が器具本体４の前面側から見た投影面内に収まり、器具本体４の前面側から見た投影面より突出する部分がなくなるので、テレビターミナルＡを包装する包装材料の設計がやりやすくなり、テレビターミナルＡをおさまり良く箱に収納することができる。そのうえ、このテレビターミナルＡでは、図７に示すように、端子部３の中心線を器具本体４の前面に対して略平行にしているので、テレビターミナルＡと埋込ボックス４０の底面との間に広い空間を確保することができ、端子部３に接続された同軸ケーブル５０を埋込ボックス４０内に収納しやすくなっている。
【００２１】
【発明の効果】
上述のように、請求項１の発明は、同軸コネクタの受け口及び前記受け口に電気的に接続されるとともに同軸ケーブルが接続される端子部を有するコネクタ部と、前面が略矩形状に形成されるとともに施工面に固定される取付枠に結合される取付け部を有する器具本体とを備え、当該器具本体を規格化された３個用の取付枠に３個まで取り付け可能な単位寸法の配線器具と略同じ寸法に形成して、前記受け口を器具本体の前面側に露出させるとともに、前記端子部を器具本体の背面側に配置し、前記端子部の中心線を器具本体の側面に対して傾斜させるとともに器具本体の前面に対して略平行にして、端子部を器具本体の前面側から見た投影面内に収めたことを特徴とする。この発明によれば、端子部に接続された同軸ケーブルが端子部の中心線の方向に引き出されるので、このテレビターミナルを埋込ボックスに収納する際に、端子部に接続された同軸ケーブルは器具本体の側面に対して傾斜させた状態で引き出されるため、埋込ボックスのリブに同軸ケーブルが干渉するのを防止でき、しかも端子部に接続された同軸ケーブルは器具本体の前面に対して略平行となっているので、テレビターミナルと埋込ボックスの底面との間に広い空間を確保することができ、埋込ボックスへの収納を容易にすることができ、テレビターミナルの施工性が向上するという効果がある。そのうえ、器具本体を配線器具の単位寸法を略同じ寸法に形成し、端子部を器具本体の前面側から見た投影面内に収めているので、テレビターミナルを他の配線器具と連設する際に、端子部が他の配線器具と干渉するのを防ぐことができ、取付枠に複数のテレビターミナルを連設したり、他の配線器具とともに連設することができるという効果がある。
【００２２】
請求項２の発明は、取付け部は、規格化された取付枠に設けた係止孔と係止離脱自在に係止する係止爪片であり、請求項３の発明は、取付け部は、規格化された取付枠に設けた保持爪が嵌合される結合凹所であるので、器具本体を取付枠に容易に取り付けることができるという効果がある。
請求項４の発明は、取付け部の取付寸法は、規格化された３個用の取付枠に３個まで取り付け可能な単位寸法の配線器具と略等しい取付寸法であるので、既製の取付枠を用いてテレビターミナルを埋込配線することができるという効果がある。
【００２４】
請求項５の発明は、前記端子部が同軸コネクタが接続される被接続部からなっているので、同軸ケーブルを端子部にかしめ固定する場合に比べて、同軸ケーブルの内部導体のむき代が作業者によってばらつくことがなく、内部導体と端子部とを確実に接触させることができ、コネクタ部の特性のばらつきを抑制でき、施工品質が向上するという効果がある。
【００２５】
請求項６の発明は、器具本体の背面側を覆う裏カバーを設けているので、器具本体の背面を隠すことにより、見栄えを良くできるという効果がある。そのうえ、裏カバーには端子部に接続する同軸ケーブルの加工寸法等の表示を設けることができるので、銘板を別途設ける必要がなく、コストダウンを図ることができるという効果もある。
【００２６】
請求項７の発明は、器具本体は、器具本体の背面側から同軸コネクタの受け口が挿入される挿入孔を備え、同軸コネクタの受け口の付け根に突起を設けるとともに、前記挿入孔の周面に前記突起と嵌合する溝を設けており、突起と溝とを嵌合させることによってコネクタ部と器具本体とのがたつきが少なくなるので、同軸コネクタの受け口に同軸コネクタを取り付ける力によって、コネクタ部が動くのを防止できるという効果がある。
【００２７】
請求項８の発明は、器具本体は、器具本体の背面側から同軸コネクタの受け口が挿入される挿入孔を備え、同軸コネクタの受け口に同軸コネクタが接続されるねじ部を設け、前記ねじ部の周面を平行な二面で切り落とし、前記挿入孔の断面形状を前記ねじ部の円周方向の断面形状と略同じ形状に形成しており、同軸コネクタの受け口と挿入孔との隙間が小さくなり、コネクタ部と器具本体とのがたつきがさらに少なくなるので、同軸コネクタの受け口に同軸コネクタを取り付ける力によって、コネクタ部が動くのを防止できるという効果がある。
【００２８】
請求項９の発明は、コネクタ部の器具本体と接触する部位に凹部を設けるとともに、器具本体に前記凹部と嵌合する凸部を設けており、凹部と凸部とを嵌合させることによって、コネクタ部と器具本体とのがたつきを少なくすることができるので、同軸コネクタの受け口に同軸コネクタを取り付ける力によって、コネクタ部が動くのを防止できるという効果がある。
【００２９】
請求項１０の発明は、前記凸部の側面に補強用のリブを設けているので、同軸コネクタの受け口に同軸コネクタを取り付ける力によって、凸部が破損するのを防止できるという効果がある。
【図面の簡単な説明】
【図１】本実施形態のテレビターミナルを示し、（ａ）は正面図、（ｂ）は上面図、（ｃ）は下面図、（ｄ）は側断面図、（ｅ）は裏面図、（ｆ）は要部断面図である。
【図２】同上のテレビターミナルの器具本体を示し、（ａ）は正面図、（ｂ）は右側から見た一部破断せる側面図、（ｃ）は裏面図、（ｄ）は下面図、（ｅ）は下側からみた断面図である。
【図３】同上のテレビターミナルのコネクタ部を示し、（ａ）は正面図、（ｂ）は左側から見た側面図、（ｃ）は右側から見た側面図、（ｄ）は下面図である。
【図４】同上のテレビターミナルのコネクタ部を示し、（ａ）は断面図、（ｂ）は側面図である。
【図５】同上のテレビターミナルを取付枠に取り付けた状態を示す斜視図である。
【図６】同上のテレビターミナルを埋込ボックスに取り付けた状態を正面から見た図である。
【図７】同上のテレビターミナルを埋込ボックスに取り付けた状態を右側から見た図である。
【符号の説明】
２受け口
３端子部
４器具本体[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a television terminal for cable television (CATV).
[0002]
[Prior art]
This type of television terminal has a connector portion formed of a conductive material to which a coaxial cable is connected, and a mounting portion that is formed in a substantially rectangular shape and is coupled to a mounting frame that is fixed to the construction surface. There was one with the instrument body. One end of the connector portion is provided with a receptacle for an F-type plug, which is a coaxial connector, and a terminal portion to which a coaxial cable is connected is provided on the other end side of the connector portion. Here, the receptacle of the F-type plug is exposed on the front side of the instrument body, the terminal part is on the back side of the instrument body, and the center line of the terminal part is parallel to the side surface on the short side and the front side of the instrument body. It was arranged to be.
[0003]
[Problems to be solved by the invention]
In the television terminal having the above-described configuration, the coaxial cable connected to the terminal portion extends in the direction of the center line of the terminal portion, that is, in the direction parallel to the side surface on the short side and the back surface of the instrument body. There was a problem that it was difficult to perform the wiring work due to interference with the embedding box and other wiring devices.
[0004]
The present invention has been made in view of the above problems, and an object of the present invention is to provide a television terminal with improved workability.
[0005]
[Means for Solving the Problems]
In order to achieve the above object, according to the first aspect of the present invention, a connector portion having a receiving port of a coaxial connector and a terminal portion that is electrically connected to the receiving port and to which a coaxial cable is connected, and the front surface has a substantially rectangular shape. An instrument body having an attachment portion that is formed and coupled to an attachment frame that is fixed to the construction surface, and has a unit dimension that allows attachment of the instrument body to three standardized attachment frames. forming substantially the same dimensions as the wiring device, Rutotomoni to expose the receptacle on the front side of the instrument body, the terminal portion is disposed on the rear side of the instrument body, the center line of the terminal portion on the side surface of the instrument body The terminal portion is housed in a projection plane viewed from the front side of the instrument main body while being inclined with respect to the front surface of the instrument main body. According to the present invention, since the coaxial cable connected to the terminal portion is drawn in the direction of the center line of the terminal portion, the coaxial cable connected to the terminal portion is used when the television terminal is stored in the embedded box. Since it is pulled out with respect to the side of the main body, it can prevent the coaxial cable from interfering with the rib of the embedded box, and the coaxial cable connected to the terminal part is almost parallel to the front of the instrument body. Therefore, a wide space can be secured between the TV terminal and the bottom surface of the embedded box, and the storage in the embedded box can be facilitated. In addition, the equipment body is formed to have the same dimensions as the unit dimensions of the wiring equipment, and the terminal part is housed in the projection plane viewed from the front side of the equipment body, so when connecting the TV terminal to other wiring equipment. In addition, the terminal portion can be prevented from interfering with other wiring devices, and a plurality of television terminals can be connected to the mounting frame or can be connected together with other wiring devices.
[0006]
According to a second aspect of the present invention, in the first aspect of the present invention, the mounting portion is a locking claw piece that is detachably locked with a locking hole provided in a standardized mounting frame. In the present invention, the attachment portion is a coupling recess into which a holding claw provided on a standardized attachment frame is fitted, so that the instrument body can be easily attached to the attachment frame.
According to a fourth aspect of the present invention, in the first to third aspects of the present invention, the mounting dimension of the mounting portion is substantially the same as that of a unit-sized wiring device that can be mounted on up to three standardized mounting frames. Therefore, the television terminal can be embedded and wired using an existing mounting frame.
[0008]
In the invention of claim 5, in the invention of claim 1, since the terminal portion is a connected portion to which a coaxial connector is connected, the coaxial cable is connected to the terminal portion by caulking and fixed. The stripping amount of the inner conductor does not vary depending on the operator, the inner conductor and the terminal portion can be reliably brought into contact with each other, and variations in the characteristics of the connector portion can be suppressed.
[0009]
In the invention of claim 6, in the invention of claim 1, since there is provided a back cover for covering the rear side of the instrument body, by hiding the back of the instrument body, it is possible to improve the appearance.
In the invention of claim 7, in the invention of claim 1, the instrument body includes an insertion hole into which the receptacle of the coaxial connector is inserted from the back side of the instrument body, and a projection is provided at the base of the receptacle of the coaxial connector. A groove for fitting with the protrusion is provided on the peripheral surface of the insertion hole, and the protrusion between the protrusion and the groove reduces rattling between the connector portion and the instrument body. It is possible to prevent the connector portion from moving due to the force of attaching.
[0010]
According to an eighth aspect of the present invention, in the first aspect of the present invention, the instrument main body includes an insertion hole into which the receptacle of the coaxial connector is inserted from the back side of the instrument main body, and the screw portion to which the coaxial connector is connected to the receptacle of the coaxial connector. The circumferential surface of the screw part is cut off by two parallel surfaces, and the cross-sectional shape of the insertion hole is formed to be substantially the same as the cross-sectional shape of the screw part in the circumferential direction. Since the gap with the hole is reduced and the rattling between the connector part and the instrument body is reduced, it is possible to prevent the connector part from moving due to the force for attaching the coaxial connector to the receiving port of the coaxial connector.
[0011]
In invention of Claim 9 , in invention of Claim 1, while providing a crevice in a part which contacts an instrument main part of a connector part, a convex part fitted to the crevice is provided in an instrument main part, a crevice and a convex part, By fitting the connector portion, rattling between the connector portion and the instrument body can be reduced, so that the connector portion can be prevented from moving by the force for attaching the coaxial connector to the receiving port of the coaxial connector.
[0012]
In the invention of claim 10, in the invention of claim 9 , since the reinforcing rib is provided on the side surface of the convex portion, the convex portion is prevented from being damaged by a force for attaching the coaxial connector to the receptacle of the coaxial connector. it can.
[0013]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
The television terminal of this embodiment is comprised from the connector part 1 to which a coaxial connector is connected, and the instrument main body 4 by which the connector part 1 is arrange | positioned, as shown to Fig.1 (a)-(f).
[0014]
The instrument main body 4 is made of a synthetic resin, and as shown in FIGS. 2A to 2E, the instrument body 4 is formed in a substantially box shape with the back surface opened, and the front surface is formed in a substantially rectangular shape. A rectangular parallelepiped protrusion 4a is formed on the front surface of the instrument body 4, and step portions 4b that are one step lower than the protrusion 4a are formed on both sides of the protrusion 4a. A pair of locking claw pieces 5a projecting sideways are formed on the side edges of each stepped portion 4b, and a coupling recess 5b is formed on each stepped portion 4b. An attachment part is comprised from the nail | claw piece 5a and the coupling recess 5b. A recess 12 having a circular cross section is provided in the approximate center of the protrusion 4a, and a hole 6 serving as an insertion hole communicating the front side and the back side of the instrument body 4 is formed in the bottom surface of the recess 12. In addition, two crimping portions 11 are respectively provided on the back surfaces of both stepped portions 4b. As shown in FIG. 1 (f), for example, a hole (see FIG. The back cover 13 is fixed to the back surface of the instrument body 4 by inserting and crimping the crimping portions 11 respectively (not shown). Therefore, the back surface of the appliance main body 4 can be hidden by the back cover 13, and the appearance of the television terminal A can be improved. For example, by displaying the processing size of the F-type plug on the back cover 13, it is not necessary to provide a nameplate separately, and the cost of the television terminal A can be reduced.
[0015]
As shown in FIGS. 3 and 4, the connector portion 1 has a body 20 formed from a conductive material in a substantially rectangular parallelepiped shape, and an F-type plug receiving port 2 that is a coaxial connector protrudes from one surface of the body 20. A terminal portion 3 composed of a connected portion to which a coaxial connector is connected is formed on a surface substantially orthogonal to the surface on which the receiving port 2 of the body 20 is provided, and the center line of the receiving port 2 and the terminal portion 3 are connected to each other. It is substantially orthogonal to the center line. The receiving port 2 and the terminal portion 3 are each formed in a substantially cylindrical shape, and screw portions 21 and 22 to which, for example, F-type plugs are screwed are formed on the peripheral surfaces thereof. Further, insulators 24 and 24 are respectively provided at the ends of the receiving port 2 and the terminal portion 3, and the insulators 24 and 24 are respectively inserted through holes 23 and 23 through which the internal conductors of the F-type plugs are inserted. In the back of the insertion holes 23, 23, there are disposed spring bodies 25, 25 made of a conductive material that sandwich the inner conductor of the F-type plug inserted through the insertion holes 23, 23. Yes. Here, each spring body 25 is fixed to the body 20 via insulators 24 and 26, and the body 20 and the spring bodies 25 and 25 are electrically insulated. Further, the spring bodies 25, 25 are electrically connected to each other by, for example, soldering. Thus, the outer conductors of the F-type plugs connected to the receiving port 2 and the terminal part 3 are electrically connected via the body 20, and the inner conductors are electrically connected via the spring bodies 25, 25. Is done. The corners of the body 20 are chamfered 30 to prevent the connector part 1 from protruding from the projection plane viewed from the front side of the instrument body 4 when the connector part 1 is attached to the instrument body 4. It is out.
[0016]
By the way, in the connector part 1, the protrusions 27 and 27 which protrude in the circumferential direction are projected at the base of the receiving port 2, and the peripheral surface of the screw part 21 is cut off by two parallel planes on the peripheral surface of the screw part 21. A so-called H-cut portion 28 is formed. Further, a concave portion 29 is formed in a portion of the connector portion 1 that contacts the instrument body 4.
On the other hand, a groove 7 that fits with the protrusion 27 is formed on the peripheral surface of the hole 6 of the instrument body 4 into which the receptacle 2 of the connector portion 1 is inserted, and flat portions 8 that are parallel to the peripheral surface of the hole 6 are formed. The cross-sectional shape of the hole 6 formed is substantially the same as the cross-sectional shape of the threaded portion 21 in the circumferential direction. Further, on the back surface of the instrument body 4, when the receptacle 2 of the connector part 1 is inserted into the hole 6, a convex part 9 that fits into the concave part 29 formed in the connector part 1 is projected. Reinforcing ribs 10 are formed on the side surfaces of 9. Here, when the connector part 1 is attached to the instrument body 4, the connector part 1 is attached to the instrument body 4 in a state where the center line of the terminal part 3 is inclined about 25 degrees with respect to the side surface on the short side of the instrument body 4. The protrusion 9 is formed so as to be inclined by a predetermined angle with respect to the side surface on the short side of the instrument body 4 so as to be attached. In the present embodiment, the inclination angle of the connector part 1 with respect to the side surface on the short side of the instrument body 4 is about 25 degrees, but this is not intended to limit the inclination angle of the connector part 1 to about 25 degrees. What is necessary is just to set the inclination-angle of the connector part 1 to the inclination-angle which becomes easy to arrange | position to an insertion box.
[0017]
The procedure for attaching the connector portion 1 to the instrument body 4 will be described below. First, the receiving port 2 of the F-type plug is inserted into the hole 6 from the back side of the instrument body 4, and the protrusion 27 protruding from the base of the receiving port 2 is fitted with the groove 7 formed in the hole 6. The convex portion 9 for preventing rotation that protrudes from the back surface of the instrument body 4 is fitted into the concave portion 29 of the connector portion 1. Then, a washer 17 is inserted into the receiving port 2 of the F-type plug exposed on the front side of the instrument body 4, and a nut 18 is screwed into the screw portion 21 engraved on the peripheral surface of the receiving port 2 of the F-type plug. Thus, the connector body 1 is fixed to the instrument body 4 by sandwiching the instrument body 4 between the connector section 1 and the nut 18. At this time, the protrusion 27 of the connector part 1 is fitted into the groove 7 of the instrument body 4, the concave part 29 of the connector part 1 is fitted to the convex part 9 of the instrument body 4, and the screw part 21 of the connector part 1 Since the hole 6 is fitted, the connection between the connector part 1 and the instrument body 4 is strengthened, and the rattling of the connector part 1 is reduced. Accordingly, even if the F-type plug is connected to the F-type plug receptacle 2 disposed on the front surface of the instrument body 4 and the F-type plug is tightened with a strong force using a tool such as a spanner, the connector portion 1 and the instrument body 4 are small in backlash, so that the connector portion 1 is not rotated by the tightening force of the F-type plug 51. In addition, since the reinforcing rib 10 is provided on the convex portion 9, the convex portion 9 is not damaged by the tightening force of the F-type plug 51.
[0018]
As shown in FIG. 5, when the television terminal A is attached to the three attachment frames 42 made of synthetic resin, the appliance main body 4 is inserted into the locking holes 44 provided opposite to the both side pieces 43 of the attachment frame 42. By locking the locking claw piece 5a, the instrument body 4 is attached to the mounting frame 42, and the protrusion 4a is exposed from the opening surrounded by the both side pieces 43 and the upper and lower pieces of the mounting frame 42. On the other hand, when the television terminal A is attached to a metal attachment frame (not shown), the fixture body 4 is attached to the attachment frame 5b by fitting a holding claw provided on the metal attachment frame into the coupling recess 5b. Attached to. The mounting dimensions of the locking claw piece 5a and the coupling recess 5b are standardized by JIS standards (see JIS C 8357, etc.) used when mounting large-angle continuous wiring devices for embedded wiring to embedded boxes, respectively. It is formed with the same mounting dimensions as the unit size of wiring equipment that can be attached to three mounting frames, and the outer dimensions of the equipment body 4 are also substantially the same as the unit dimensions of the wiring equipment (one module size). Since it is formed in a size, a plurality of television terminals A can be attached to the attachment frame, or the television terminals A can be attached to the attachment frame together with other wiring devices.
[0019]
Here, when the CATV station, the antenna-side coaxial cable, or the receiver-side coaxial cable is connected to the receptacle 2 or the terminal portion 3 of the F-type plug, respectively, it is provided at the end of the coaxial cables 50 and 50. The plugs 52 and 52 of the F-type plug are inserted into the receptacle 2 or the terminal portion 3 respectively. Nuts 51, 51 are rotatably attached to the outer peripheral portions of the F-type plugs 52, 52. The nuts 51, 51 are attached to the F-type plug receptacle 2 or the screw portions 21, 22 of the terminal portion 3. Are respectively connected to the receptacle 2 or the terminal portion 3 of the F-type plug, and the coaxial cables 50 and 50 are electrically connected to each other. Thus, in the television terminal A of this embodiment, since the F-type plug is connected to the receiving port 2 and the terminal portion 3, respectively, compared with the case where the coaxial cable is directly connected to the terminal portion 3, The stripping margin of the inner conductor does not vary, the variation in the characteristics of the connector portion 1 is reduced, and the inner conductor of the F-type plug and the spring body 25 of the connector portion 1 can be reliably contacted.
[0020]
By the way, in this television terminal A, as shown in FIG. 6, since the center line of the terminal portion 3 is inclined with respect to the side surface on the short side of the instrument body 4, the coaxial cable 50 connected to the terminal portion 3. Is also drawn out in the direction of the center line of the terminal portion 3, that is, the direction inclined with respect to the side surface on the short side of the instrument body 4. By the way, ribs 41 and 41 in which screw holes for box screws for fixing the mounting frame are formed are provided on the upper and lower sides of the embedded box 40, but the coaxial cable 50 is provided on the short side of the instrument body 4. The coaxial cable 50 interferes with the ribs 41 and 41 when the TV terminal A is disposed in the resin embedding box 40 through the mounting frame. Thus, the coaxial cable 50 can be easily stored in the embedded box 40. Further, by inclining the center line of the terminal part 3 with respect to the side surface on the short side of the instrument body 4, the connector part 1 is accommodated in the projection plane viewed from the front side of the instrument body 4, and Since there is no portion projecting from the projection surface viewed from the side, the packaging material for packaging the television terminal A can be easily designed, and the television terminal A can be stored in a box in a compact manner. Moreover, in this television terminal A, as shown in FIG. 7, since the center line of the terminal portion 3 is substantially parallel to the front surface of the instrument body 4, the space between the television terminal A and the bottom surface of the embedded box 40 is A large space can be secured, and the coaxial cable 50 connected to the terminal portion 3 can be easily stored in the embedded box 40.
[0021]
【The invention's effect】
As described above, according to the first aspect of the present invention, the connector portion having the receiving port of the coaxial connector and the terminal portion to which the coaxial cable is connected while being electrically connected to the receiving port and the front surface are formed in a substantially rectangular shape. And an instrument main body having an attachment portion coupled to an attachment frame fixed to the construction surface, and a wiring appliance having a unit size capable of attaching up to three of the instrument main body to a standardized three attachment frame; substantially formed in the same size, Rutotomoni to expose the receptacle on the front side of the instrument body, the terminal portion is disposed on the rear side of the instrument body, inclined to the center line of the terminal portion to the side surface of the instrument body In addition , the terminal portion is housed in a projection plane viewed from the front side of the instrument body so as to be substantially parallel to the front surface of the instrument body. According to the present invention, since the coaxial cable connected to the terminal portion is drawn in the direction of the center line of the terminal portion, the coaxial cable connected to the terminal portion is used when the television terminal is stored in the embedded box. Since it is pulled out with respect to the side of the main body, it can prevent the coaxial cable from interfering with the rib of the embedded box, and the coaxial cable connected to the terminal part is almost parallel to the front of the instrument body. Therefore, it is possible to secure a wide space between the TV terminal and the bottom of the embedded box, facilitate storage in the embedded box, and improve the workability of the TV terminal. effective. In addition, the unit size of the wiring device is formed to be approximately the same size, and the terminal portion is housed in the projection plane viewed from the front side of the device body, so when connecting the TV terminal to other wiring devices. In addition, it is possible to prevent the terminal portion from interfering with other wiring devices, and there is an effect that a plurality of television terminals can be connected to the mounting frame or can be connected together with other wiring devices.
[0022]
In the invention of claim 2, the mounting portion is a locking claw piece that is detachably locked with a locking hole provided in a standardized mounting frame. In the invention of claim 3, the mounting portion is Since it is a coupling recess into which the holding claws provided on the standardized mounting frame are fitted, there is an effect that the instrument body can be easily attached to the mounting frame.
In the invention of claim 4, since the mounting dimension of the mounting part is substantially the same mounting dimension as that of a unit sized wiring apparatus that can be mounted on up to three standardized mounting frames, a ready-made mounting frame is used. There is an effect that the TV terminal can be embedded and used.
[0024]
In the invention of claim 5 , since the terminal portion is a connected portion to which a coaxial connector is connected, the stripping of the inner conductor of the coaxial cable is more effective than when the coaxial cable is caulked and fixed to the terminal portion. The inner conductor and the terminal portion can be reliably brought into contact with each other without any variation, and variations in the characteristics of the connector portion can be suppressed, thereby improving the construction quality.
[0025]
Since the back cover which covers the back side of an instrument main body is provided in invention of Claim 6 , there exists an effect that appearance can be improved by concealing the back surface of an instrument main body. In addition, since the back cover can be provided with an indication of the processing dimensions and the like of the coaxial cable connected to the terminal portion, there is no need to provide a nameplate separately, and the cost can be reduced.
[0026]
According to a seventh aspect of the invention, the instrument body includes an insertion hole into which the receptacle of the coaxial connector is inserted from the back side of the instrument body, the projection is provided at the base of the receptacle of the coaxial connector, and the peripheral surface of the insertion hole Since a groove for fitting with the protrusion is provided and the protrusion and the groove are fitted to each other, rattling between the connector portion and the instrument main body is reduced. Has the effect of preventing the movement.
[0027]
According to an eighth aspect of the present invention, the instrument body includes an insertion hole into which the receptacle of the coaxial connector is inserted from the back side of the instrument body, and a screw portion for connecting the coaxial connector to the receptacle of the coaxial connector is provided. The circumferential surface is cut off by two parallel surfaces, and the cross-sectional shape of the insertion hole is formed to be approximately the same as the cross-sectional shape of the threaded portion in the circumferential direction, and the clearance between the coaxial connector receptacle and the insertion hole is reduced. Since the rattling between the connector part and the instrument body is further reduced, there is an effect that the connector part can be prevented from moving by the force for attaching the coaxial connector to the receiving port of the coaxial connector.
[0028]
The invention of claim 9 is provided with a concave portion in the portion of the connector portion that comes into contact with the instrument main body, and provided with a convex portion that fits the concave portion in the instrument main body, and by fitting the concave portion and the convex portion, Since the rattling between the connector portion and the instrument body can be reduced, there is an effect that the connector portion can be prevented from moving by the force for attaching the coaxial connector to the receiving port of the coaxial connector.
[0029]
In the invention of claim 10 , since the reinforcing rib is provided on the side surface of the convex portion, there is an effect that the convex portion can be prevented from being damaged by a force for attaching the coaxial connector to the receiving port of the coaxial connector.
[Brief description of the drawings]
FIG. 1 shows a television terminal of the present embodiment, where (a) is a front view, (b) is a top view, (c) is a bottom view, (d) is a side sectional view, (e) is a back view, f) is a sectional view of an essential part.
2A and 2B show an apparatus main body of the above television terminal, wherein FIG. 2A is a front view, FIG. 2B is a partially broken side view seen from the right side, FIG. 2C is a rear view, and FIG. (E) is sectional drawing seen from the lower side.
3A and 3B show a connector part of the above television terminal, wherein FIG. 3A is a front view, FIG. 3B is a side view seen from the left side, FIG. 3C is a side view seen from the right side, and FIG. is there.
4A and 4B show a connector part of the above television terminal, in which FIG. 4A is a cross-sectional view and FIG. 4B is a side view.
FIG. 5 is a perspective view showing a state in which the television terminal is attached to the attachment frame.
FIG. 6 is a front view showing a state in which the television terminal is attached to the embedded box.
FIG. 7 is a view of the state in which the above television terminal is attached to the embedding box as viewed from the right side.
[Explanation of symbols]
2 Receptacle 3 Terminal 4 Equipment body

Claims

A connector part having a terminal part to which a coaxial cable receptacle and a coaxial cable are connected, and a front face formed in a substantially rectangular shape and coupled to a mounting frame fixed to the construction surface. An instrument body having a mounting portion, and the instrument body is formed to have substantially the same dimensions as a unit-sized wiring instrument capable of mounting up to three standardized mounting frames. Rutotomoni exposed on the front side of the main body, placing the terminal portion on the back side of the instrument body, and substantially parallel to the front surface of the fixture body with tilting the center line of the terminal portion to the side surface of the instrument body The television terminal is characterized in that the terminal portion is housed in a projection plane viewed from the front side of the instrument body .

2. The television terminal according to claim 1, wherein the mounting portion is a locking claw piece that is detachably locked with a locking hole provided in a standardized mounting frame.

The television terminal according to claim 1, wherein the attachment portion is a coupling recess into which a holding claw provided on a standardized attachment frame is fitted.

Mounting dimensions of the mounting portion, the television terminal according to any one of claims 1 to 3, characterized in that it is substantially equal to the mounting dimensions and wiring devices of Unit dimensions.

The terminal unit of claim 1, wherein the television terminal, characterized in that it consists of the connection part coaxial connector is connected.

The television terminal according to claim 1, further comprising a back cover that covers a back side of the appliance main body .

The instrument body includes an insertion hole into which the coaxial connector receptacle is inserted from the back side of the instrument body, and a projection is provided at the base of the coaxial connector receptacle, and a groove that fits the projection is formed on the peripheral surface of the insertion hole. claim 1, wherein the television terminal, characterized in that provided.

The instrument body includes an insertion hole into which the coaxial connector receptacle is inserted from the back side of the instrument body, and a screw portion to which the coaxial connector is connected is provided at the coaxial connector receptacle, and the circumferential surface of the screw portion is parallel to two surfaces. The television terminal according to claim 1 , wherein the insertion hole has a cross- sectional shape substantially the same as a circumferential cross-sectional shape of the screw portion .

The television terminal according to claim 1 , wherein a concave portion is provided in a portion of the connector portion that contacts the appliance main body, and a convex portion that is fitted to the concave portion is provided in the appliance main body .

The television terminal according to claim 9, wherein a reinforcing rib is provided on a side surface of the convex portion .