JP4351034B2 - CATV equipment - Google Patents

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JP4351034B2
JP4351034B2 JP2003404362A JP2003404362A JP4351034B2 JP 4351034 B2 JP4351034 B2 JP 4351034B2 JP 2003404362 A JP2003404362 A JP 2003404362A JP 2003404362 A JP2003404362 A JP 2003404362A JP 4351034 B2 JP4351034 B2 JP 4351034B2
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一賀 雨宮
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ミハル通信株式会社
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本発明は、ＣＡＴＶ伝送路において、電源電圧及び高周波信号を分岐・分配するＣＡＴＶ用タップオフ、分岐・分配器等のＣＡＴＶ機器に関するものである。   The present invention relates to a CATV device such as a CATV tap-off and a branch / distributor that branches and distributes a power supply voltage and a high-frequency signal in a CATV transmission line.

ＣＡＴＶ機器の一つであるタップオフは図６（ａ）に示すように、蓋Ａとタップオフ本体Ｈとから構成されている。蓋ＡのケースＢ内には入力側同軸ケーブルを接続可能な入力側端子Ｃと接続された入力側ターミナル端子Ｄと、出力側同軸ケーブルを接続可能な出力側端子Ｅと接続された入力側ターミナル端子Ｆと、両端子を短絡可能な金属製の短絡材Ｇとを備えている。前記短絡材Ｇは軸方向両端部が下向きに傾斜する板バネであって、タップオフ本体Ｈを装着しないときは図６（ｂ）に示すように一端が入力側ターミナル端子Ｄに接触し、他端が出力側ターミナル端子Ｆに接触して、入力側端子Ｃと出力側端子Ｅとを短絡するようにしてある。   A tap-off, which is one of the CATV devices, includes a lid A and a tap-off main body H as shown in FIG. In the case B of the lid A, an input side terminal D connected to an input side terminal C to which an input side coaxial cable can be connected, and an input side terminal connected to an output side terminal E to which an output side coaxial cable can be connected. A terminal F and a metal short-circuit material G capable of short-circuiting both terminals are provided. The short-circuiting material G is a leaf spring whose both axial ends are inclined downward, and when the tap-off body H is not attached, one end contacts the input-side terminal D as shown in FIG. Is in contact with the output-side terminal terminal F to short-circuit the input-side terminal C and the output-side terminal E.

また、図６（ａ）に示すように、タップオフ本体Ｈを蓋Ａに装着すると、タップオフ本体Ｈのプリント基板Ｉによって蓋Ａの押し具Ｊが押し上げられ、その押し具Ｊにより短絡材Ｇの両端部が押し上げられて、入力側端子Ｃ、出力側端子Ｅと電気的に切り離されるようにしてある。   6A, when the tap-off body H is attached to the lid A, the pusher J of the lid A is pushed up by the printed circuit board I of the tap-off body H, and both ends of the short-circuit material G are pushed by the pusher J. The portion is pushed up to be electrically disconnected from the input side terminal C and the output side terminal E.

図６（ａ）（ｂ）に示すタップオフを分岐数の異なるものと交換したり、ｄＢ値の異なるものと交換したり、ＣＡＴＶ線路を工事したりする場合は、タップオフ本体Ｈを蓋Ａから取り外し、交換や工事終了後にタップオフ本体Ｈを蓋Ａに取付けている。この場合、タップオフ本体Ｈの取付けが確実に行われ、短絡材Ｇの両端部が入力側端子Ｃ、出力側端子Ｅと電気的に切り離されたか否かを、その場で確認することができないため、取付け不良があっても異常が発見されてからでないと気が付かず、外部ノイズの侵入により画像劣化が発生したりして、加入者に迷惑をかけることがあった。   When exchanging the tap-off shown in FIGS. 6A and 6B with one having a different number of branches, exchanging with a different dB value, or constructing a CATV line, remove the tap-off main body H from the lid A. The tap-off body H is attached to the lid A after replacement or construction. In this case, the tap-off body H is securely attached, and it is impossible to confirm on the spot whether or not both ends of the short-circuit material G are electrically disconnected from the input side terminal C and the output side terminal E. Even if there is an improper installation, it is not noticeable until an abnormality is discovered, and image degradation may occur due to the intrusion of external noise, which may inconvenience subscribers.

本発明のＣＡＴＶ機器は、蓋と機器本体とから構成されるＣＡＴＶ機器において、機器本体を蓋に取付けたときに機器本体の高周波系路と電源電圧系路が蓋の入力側端子と出力側端子に接触したことをＣＡＴＶ機器の外部から視覚や聴覚で確認することができるようにしたものである。   The CATV device of the present invention is a CATV device composed of a lid and a device body. When the device body is attached to the lid, the high-frequency system path and the power supply voltage system path of the device body are the input side terminal and output side terminal of the lid. It can be confirmed visually or auditorily from the outside of the CATV device that it is touched.

本件出願のＣＡＴＶ機器は、入力側端子と出力側端子とを短絡可能な短絡材を備えた蓋と、前記蓋に脱着可能であり、高周波系路、電源系路を備えた機器本体とから構成され、
前記蓋に機器本体が取付けられると、前記短絡材が機器本体により押されて蓋の入力側端子と出力側端子の双方又はいずれか一方から離れ、機器本体の高周波系路と電源電圧系路が入力側端子と出力側端子の双方に接触し、
前記蓋から機器本体を取り外すと、機器本体による短絡材の前記押しが解除されて、短絡材が蓋の入力側端子と出力側端子の双方に接触して、入力側端子に入力された高周波信号及び電源電圧が短絡材を通して出力側端子に出力されるようにしたＣＡＴＶ機器において、
報知器が前記蓋又は機器本体にそれらの外部から確認できるように設けられ、該報知器は、蓋から機器本体が取り外されることにより短絡材が蓋の入力側端子と出力側端子に接触すると短絡材を流れる高周波信号又は電源電圧によって作動し、蓋に機器本体が取付けられることにより短絡材が蓋の入力側端子と出力側端子から離れて機器本体の高周波系路と電源電圧系路が蓋の入力側端子と出力側端子に接触すると非作動となって、機器本体の高周波系路と電源電圧系路が蓋の入力側端子と出力側端子に接触したことを確認可能としたものである。 The CATV device of the present application includes a lid provided with a short-circuit material capable of short-circuiting the input side terminal and the output side terminal, and a device body detachably attached to the lid and provided with a high-frequency system path and a power system path. And
When the device main body is attached to the lid, the short-circuit material is pushed by the device main body to leave the input side terminal and / or the output side terminal of the lid, and the high frequency system path and the power supply voltage system path of the apparatus body Touch both the input side terminal and the output side terminal,
When the device main body is removed from the lid, the push of the short-circuit material by the device main body is released, the short-circuit material contacts both the input side terminal and the output side terminal of the lid, and the high frequency signal input to the input side terminal And a CATV device in which the power supply voltage is output to the output side terminal through the short-circuit material,
An alarm is provided on the lid or the device body so that they can be confirmed from the outside, and the alarm is short-circuited when the short-circuit material contacts the input side terminal and the output side terminal of the lid by removing the device body from the lid. When the device body is attached to the lid, the short-circuit material is separated from the input side terminal and output side terminal of the lid, and the high frequency line and power supply voltage line of the device body are When the input side terminal and the output side terminal are contacted, it becomes inoperative, and it is possible to confirm that the high frequency system path and the power supply voltage system path of the device main body are in contact with the input side terminal and the output side terminal of the lid.

本件出願のＣＡＴＶ機器は次のような効果がある。
（１）蓋又は機器本体にそれらの外部から確認できるように報知器を備えたので、蓋へ機器本体を取付けたときに、機器本体の高周波系路と電源電圧系路が蓋の入力側端子と出力側端子に接触したことをＣＡＴＶ機器の外部から確認することができる。
（２）報知器が短絡材を流れる高周波信号又は電源電圧によって作動するので、報知器を作動させる電源を別途設ける必要がなく、報知器を設けてもＣＡＴＶ機器が格別大型化することもない。 The CATV device of the present application has the following effects.
(1) Since the alarm is provided on the lid or device body so that they can be confirmed from the outside, when the device body is attached to the lid, the high-frequency circuit and power supply voltage circuit of the device body are the input side terminals of the lid. It can be confirmed from the outside of the CATV device that the output side terminal is touched.
(2) Since the alarm device is operated by a high-frequency signal or power supply voltage flowing through the short-circuit material, it is not necessary to separately provide a power source for operating the alarm device, and even if the alarm device is provided, the CATV device is not significantly enlarged.

（実施形態１）
本発明のＣＡＴＶ機器の実施形態の一例を、タップオフを例にして図面に基づいて詳細に説明する。図１に示すタップオフ１は蓋２とそれに脱着可能な機器本体（タップオフ本体）３とから構成されている。蓋２の外周縁部の数箇所には下方開口の螺子孔２ａが形成されており、その螺子孔２ａにタップオフ本体３の螺子孔３ａに差し込んである螺子４をねじ込むと、タップオフ本体３が蓋２に装着され、タップオフ本体３が蓋２に装着された状態で螺子４を緩めるとタップオフ本体３が蓋２から外れるようにしてある。 (Embodiment 1)
An example of an embodiment of the CATV device of the present invention will be described in detail with reference to the drawings by taking tap-off as an example. A tap-off 1 shown in FIG. 1 includes a lid 2 and a device main body (tap-off main body) 3 that can be attached to and detached from the lid 2. A screw hole 2a having a lower opening is formed at several locations on the outer peripheral edge of the lid 2. When the screw 4 inserted into the screw hole 3a of the tap-off body 3 is screwed into the screw hole 2a, the tap-off body 3 is covered with the lid 2. 2 and the tap-off body 3 is detached from the lid 2 when the screw 4 is loosened while the tap-off body 3 is mounted on the lid 2.

前記蓋２は図１及び図２に示すように、下方開口の蓋ケース５に入力側ケーブルを脱着可能な入力側端子６と、出力側ケーブルを脱着可能な出力側端子７が形成され、蓋ケース５の内側で入力側端子６の内側に金属製の入力側ターミナル端子８が配置され、蓋ケース５の内側で出力側端子７の内側に金属製の出力側ターミナル端子９が配置され、蓋ケース５の天井面内側には、樹脂製の下方開口の細長カバー１２が配置されており、該カバー１２の内側に金属製の細長帯状の短絡材１０が配置され、アルミダイカストとか他の金属製の蓋ケース５に接触しないようにしてある。   As shown in FIGS. 1 and 2, the lid 2 is formed with an input side terminal 6 to which an input side cable can be attached and detached, and an output side terminal 7 to which an output side cable can be attached and detached. A metal input side terminal terminal 8 is disposed inside the case 5 inside the input side terminal 6, and a metal output side terminal terminal 9 is disposed inside the output side terminal 7 inside the lid case 5. An elongated cover 12 made of resin and having a downward opening is disposed inside the ceiling surface of the case 5, and a metallic elongated strip-shaped short-circuit material 10 is disposed inside the cover 12, and is made of aluminum die casting or other metal. The lid case 5 is not touched.

短絡材１０は軸方向両端部１０ａ、１０ｂが下向きに傾斜する細長の板バネであり、タップオフ本体３を取付けない状態では一端が入力側ターミナル端子８に押付けられて接触し、他端が出力側ターミナル端子９に押付けられて接触して、入力側端子６に装着される入力側同軸ケーブルの中心導体−入力側端子６−入力側ターミナル端子８−短絡材１０−出力側ターミナル端子９−出力側端子７−出力側同軸ケーブルの中心導体の導通系路が確保されるようにしてある（図５参照）。   The short-circuit member 10 is an elongated leaf spring in which both axial end portions 10a and 10b are inclined downward. When the tap-off main body 3 is not attached, one end is pressed against the input-side terminal terminal 8 and the other end is on the output side. The center conductor of the input side coaxial cable to be pressed and contacted with the terminal terminal 9 and attached to the input side terminal 6 -the input side terminal 6 -the input side terminal terminal 8 -the short circuit material 10 -the output side terminal terminal 9 -the output side A conduction path between the terminal 7 and the center conductor of the output side coaxial cable is secured (see FIG. 5).

この実施形態では報知器１６としてＬＥＤが使用されている。ＬＥＤは図５（ａ）に示すように、短絡材１０に電気的に接続されている。ＬＥＤ１６は図３及び図４に示すように、前記蓋ケース５に窓１７を開口し、その窓１７内に配置されて外部から点灯が確認できるようにしてある。また、ＬＥＤ１６は高周波信号によって発光するＬＥＤであって、図５（ａ）に示すように電源電圧（低周波）をカットして高周波信号だけを通過させるフィルタ回路１８を経由して短絡材１０と電気的に接続されている。フィルタ回路１８はコンデンサＣを備えている。   In this embodiment, an LED is used as the alarm 16. The LED is electrically connected to the short-circuit material 10 as shown in FIG. As shown in FIGS. 3 and 4, the LED 16 has a window 17 opened in the lid case 5 and is disposed in the window 17 so that lighting can be confirmed from the outside. Further, the LED 16 emits light by a high-frequency signal. As shown in FIG. 5A, the LED 16 is connected to the short-circuit material 10 via a filter circuit 18 that cuts the power supply voltage (low frequency) and passes only the high-frequency signal. Electrically connected. The filter circuit 18 includes a capacitor C.

ＬＥＤ１６は電源電圧（低周波）によって発光するものであってもよく、その場合はフィルタ回路１８を図５（ｂ）のようにチョークコイルＬを備える回路とし、短絡材１０に流れる高周波信号をカットして電源電圧（低周波）だけを通過させるものとする。その場合は、短絡材１０に高周波信号及び電源電圧が流れると、フィルタ回路１８が高周波信号をカットして電源電圧（低周波）だけを通過させ、その電源電圧（低周波）によってＬＥＤ１６が点灯する。   The LED 16 may emit light by a power supply voltage (low frequency). In this case, the filter circuit 18 is a circuit having a choke coil L as shown in FIG. Thus, only the power supply voltage (low frequency) is allowed to pass. In this case, when a high frequency signal and a power supply voltage flow through the short-circuit material 10, the filter circuit 18 cuts the high frequency signal and passes only the power supply voltage (low frequency), and the LED 16 is turned on by the power supply voltage (low frequency). .

ＬＥＤ１６の発光色は任意の色とすることができる。ＬＥＤ１６には高輝度のものを用いると目に付き易い。   The emission color of the LED 16 can be any color. The LED 16 is easily noticeable when it has a high luminance.

前記入力側ターミナル端子８は入力側端子６に装着される入力側同軸ケーブルの中心導体が挿入されるとその中心導体と導通状態となり、出力側ターミナル端子９は出力側端子７に装着される出力側同軸ケーブルの中心導体が挿入されるとその中心導体と導通状態となるようにしてある。金属製の入力側ターミナル端子８及び出力側ターミナル端子９は、図２に示すように蓋ケース５の内側に取付けられている樹脂製の保持具１１に内蔵されて、アルミダイカストとか他の金属製の蓋ケース５に接触しないようにしてある。   When the center conductor of the input side coaxial cable attached to the input side terminal 6 is inserted, the input side terminal terminal 8 becomes conductive with the center conductor, and the output side terminal terminal 9 is output to be attached to the output side terminal 7. When the center conductor of the side coaxial cable is inserted, the center conductor is brought into conduction. As shown in FIG. 2, the metal input side terminal terminal 8 and the output side terminal terminal 9 are housed in a resin holder 11 attached to the inside of the lid case 5, and are made of aluminum die casting or other metal. The lid case 5 is not touched.

前記短絡材１０の軸方向両端側下方には２本の押し具１３ａ、１３ｂが上下にスライド可能に配置されている。この押し具１３ａ、１３ｂは樹脂製のピン状であり、図３、図４に示すように、蓋ケース５の内側に取付けられている樹脂製の支持具１４の差込孔１５に縦向きに差し込まれて上下にスライド可能としてあり、しかも、自重で降下しても支持具１４から抜け落ちないようにするため、短絡材１０側（上端側）の径を支持具１４の差込孔１５の径よりも大きくし、下端側の径をその差込孔１５に差込可能になるように細くしてある。   Two pushers 13a and 13b are slidably arranged up and down below both ends of the short-circuit member 10 in the axial direction. The pushers 13a and 13b are in the form of resin pins, and are vertically oriented in the insertion holes 15 of the resin support 14 attached to the inside of the lid case 5, as shown in FIGS. The diameter of the insertion hole 15 of the support tool 14 is set to the diameter of the short-circuiting material 10 side (upper end side) so that it can be slid up and down and is not dropped from the support tool 14 even when lowered by its own weight. And the diameter on the lower end side is thinned so that it can be inserted into the insertion hole 15.

前記タップオフ本体３は図１に示すように、アルミダイカストとか他の金属製の本体ケース２０の底面に分岐端子２１が突設され、本体ケース２０の上面にプリント基板２２が取付けられている。プリント基板２２にはチョークコイル、コンデンサ、抵抗等の電子部品が搭載され、それらが結線されて、高周波信号が通る高周波系路、電源電圧が通る電源電圧系路といった、タップオフとして必要な各種回路や系路が形成されている。   As shown in FIG. 1, the tap-off main body 3 has a branch terminal 21 projecting from the bottom of an aluminum die-cast or other metal main body case 20, and a printed circuit board 22 is attached to the upper surface of the main body case 20. The printed circuit board 22 is equipped with electronic components such as a choke coil, a capacitor, and a resistor. These are connected, and various circuits necessary for tap-off such as a high-frequency system path through which a high-frequency signal passes and a power-supply voltage system path through which a power supply voltage passes. A system is formed.

タップオフの電気回路の基本構成は図５に示すように、入力側端子６と出力側端子７との間に分岐器２４が接続され、その分岐器２４に二分配器２５を介して分岐端子２１が接続されている。また、分岐器２４の上流側と入力側端子６との間にコンデンサＣ1を、分岐器２４の下流側と出力側端子７との間にコンデンサＣ2を接続して、電源電圧（低周波）をカットして高周波信号だけが通過できる高周波系路２６が形成され、入力側端子６と出力側端子７との間に並列にチョークコイルＬを入れて、高周波信号をカットして電源電圧だけが通過できる電源電圧系路２７が形成されている。 As shown in FIG. 5, the basic configuration of the tap-off electric circuit is that a branching device 24 is connected between the input-side terminal 6 and the output-side terminal 7, and the branching device 21 is connected to the branching device 21 via the bi-distributor 25. Is connected. Further, a capacitor C 1 is connected between the upstream side of the branching device 24 and the input side terminal 6, and a capacitor C 2 is connected between the downstream side of the branching device 24 and the output side terminal 7, so that the power supply voltage (low frequency) ) And a high-frequency system path 26 through which only a high-frequency signal can pass is formed. A choke coil L is inserted in parallel between the input-side terminal 6 and the output-side terminal 7 to cut the high-frequency signal and only the power supply voltage. Is formed, through which a power supply voltage path 27 can pass.

プリント基板２２には、図３に示すように、金属製の電極２３ａ、２３ｂが２本突設されている。この電極２３ａ、２３ｂは、タップオフ本体３を蓋２に装着すると入力側ターミナル端子８、出力側ターミナル端子９に挿入されて、それらターミナル端子８、９を介して、入力側端子６に接続された入力側同軸ケーブル、出力側端子７に接続された出力側同軸ケーブルの中心導体と接触するようにしてある。この場合、入力側端子６に入力された高周波信号及び電源電圧のうち、高周波信号は図５の高周波系路２６を通って出力側端子７に出力されると共に分岐器２４で分岐されて分岐端子２１にも出力され、電源電圧は図５の電源電圧系路２７を通って出力側端子７に出力されるようにしてある。   As shown in FIG. 3, the printed circuit board 22 is provided with two metal electrodes 23a and 23b. When the tap-off body 3 is attached to the lid 2, the electrodes 23 a and 23 b are inserted into the input-side terminal terminal 8 and the output-side terminal terminal 9, and are connected to the input-side terminal 6 through the terminal terminals 8 and 9. The input side coaxial cable is in contact with the center conductor of the output side coaxial cable connected to the output side terminal 7. In this case, among the high frequency signal and the power supply voltage input to the input side terminal 6, the high frequency signal is output to the output side terminal 7 through the high frequency system path 26 of FIG. The power supply voltage is also output to the output side terminal 7 through the power supply voltage system 27 of FIG.

前記蓋２にタップオフ本体３を取付けると、図３に示すように、蓋２の押し具１３ａ、１３ｂがタップオフ本体３のプリント基板２２によって押し上げられ、短絡材１０の軸方向両端部１０ａ、１０ｂが押し具１３ａ、１３ｂにより押し上げられて、入力側ターミナル端子８、出力側ターミナル端子９から離されて、短絡材１０は入力側端子６、出力側端子７から電気的に切り離される。このとき、タップオフ本体３の電極２３ａ、２３ｂが、入力側ターミナル８、出力側ターミナル９のそれぞれに挿入されて、タップオフ本体３の高周波系路２６と電源電圧系路２７が蓋２の入力側端子６と出力側端子７に接触する。このため、ＬＥＤ１６が点灯せず、高周波系路２６と電源電圧系路２７が蓋２の入力側端子６と出力側端子７に接触したことを確認することができる。   When the tap-off main body 3 is attached to the lid 2, as shown in FIG. 3, the pressing tools 13a and 13b of the lid 2 are pushed up by the printed circuit board 22 of the tap-off main body 3, and both axial ends 10a and 10b of the short-circuit material 10 are The shorting material 10 is electrically separated from the input side terminal 6 and the output side terminal 7 by being pushed up by the pressing tools 13 a and 13 b and separated from the input side terminal terminal 8 and the output side terminal terminal 9. At this time, the electrodes 23 a and 23 b of the tap-off body 3 are inserted into the input-side terminal 8 and the output-side terminal 9, respectively, and the high-frequency system path 26 and the power supply voltage system 27 of the tap-off body 3 are the input-side terminals of the lid 2. 6 and the output side terminal 7 are contacted. For this reason, it can be confirmed that the LED 16 is not turned on, and the high frequency system path 26 and the power supply voltage system path 27 are in contact with the input side terminal 6 and the output side terminal 7 of the lid 2.

蓋２からタップオフ本体３を取り外すと、図４に示すように、短絡材１０の軸方向両端側の押し上げが解除されて、短絡材１０の軸方向両端側１０ａ、１０ｂが、短絡材１０自身のバネ力によって下方へ押付けられて入力側ターミナル端子８及び出力側ターミナル端子９に接触するようにしてある。この場合、短絡材１０は入力側端子６と出力側端子７とを短絡し、短絡材１０には高周波信号及び電源電圧が流れ、ＬＥＤ１６は点灯する。   When the tap-off body 3 is removed from the lid 2, as shown in FIG. 4, the push-up of both ends in the axial direction of the short-circuit material 10 is released, and both axial ends 10 a and 10 b of the short-circuit material 10 It is pressed downward by a spring force so as to come into contact with the input side terminal terminal 8 and the output side terminal terminal 9. In this case, the short-circuit material 10 short-circuits the input-side terminal 6 and the output-side terminal 7, the high-frequency signal and the power supply voltage flow through the short-circuit material 10, and the LED 16 is lit.

また、蓋２にタップオフ本体３を取付ける際に、取付けが確実でなく、短絡材１０が入力側端子６、出力側端子７から電気的に切り離されていない場合には、ＬＥＤ１６が点灯したままとなるため、すぐにタップオフ本体３を確実に取付けなおすことができる。蓋２にタップオフ本体３を確実に取付けると、タップオフ本体３の高周波系路２６と電源電圧系路２７が蓋２の入力側端子６と出力側端子７に接触して、短絡材１０は入力側端子６、出力側端子７から電気的に切り離され、ＬＥＤ１６が点灯しなくなるので、確実に取付けられたことを外部から一目で確認することができる。   Further, when attaching the tap-off body 3 to the lid 2, if the attachment is not reliable and the short-circuit material 10 is not electrically disconnected from the input side terminal 6 and the output side terminal 7, the LED 16 remains on. Therefore, the tap-off main body 3 can be reliably reattached immediately. When the tap-off body 3 is securely attached to the lid 2, the high-frequency system path 26 and the power supply voltage system path 27 of the tap-off body 3 come into contact with the input side terminal 6 and the output side terminal 7 of the lid 2, so Since it is electrically disconnected from the terminal 6 and the output side terminal 7 and the LED 16 does not light up, it can be confirmed at a glance from the outside that it is securely attached.

（その他の実施形態）
前記実施形態１においては、ＬＥＤ１６の設置位置は、蓋ケース５に窓１７を開口し、その窓１７内に備えられて外部から発光が確認できるようにして備えたが、ＬＥＤの設置位置は、これには限られず、ＬＥＤの点灯及び消灯を確認可能であれば、蓋ケースの外部等任意の位置に設置することができる。また、ＬＥＤの数も一個に限られず、二個以上とすることも可能である。 (Other embodiments)
In the first embodiment, the LED 16 is installed at the lid case 5 by opening the window 17 so that the light emission can be confirmed from the outside provided in the window 17. However, the present invention is not limited to this, and the LED can be installed at an arbitrary position such as the outside of the lid case as long as the LED can be turned on and off. Further, the number of LEDs is not limited to one, and can be two or more.

また、前記実施形態１においては、短絡材１０が蓋の入力側端子６と出力側端子７の双方に接触していることの報知機器としてＬＥＤ１６を用いたが、機器本体の高周波系路と電源電圧系路が蓋の入力側端子と出力側端子に接触したことを確認可能であれば、ＬＥＤには限られず、その他のランプや電球等の任意の発光機器や、ブザー等の音発生機器等の任意の報知器を用いることが可能である。   In the first embodiment, the LED 16 is used as a notification device that the short-circuit material 10 is in contact with both the input terminal 6 and the output terminal 7 of the lid. If it can be confirmed that the voltage system has contacted the input side terminal and output side terminal of the lid, it is not limited to LEDs, but any other light emitting device such as a lamp or light bulb, or a sound generating device such as a buzzer Any alarm device can be used.

また、前記実施形態１においては、ＬＥＤ１６を、フィルタ回路１８を介して短絡材１０と電気的に接続して、短絡材１０を流れる高周波信号又は電源電圧によってＬＥＤ１６を点灯させたが、機器本体の高周波系路と電源電圧系路が蓋の入力側端子と出力側端子に接触したことを確認可能な報知器のための電源を別途備えることも可能である。   In the first embodiment, the LED 16 is electrically connected to the short-circuit material 10 via the filter circuit 18, and the LED 16 is turned on by a high-frequency signal or a power supply voltage flowing through the short-circuit material 10. It is also possible to separately provide a power supply for an alarm device capable of confirming that the high frequency system path and the power supply voltage system path are in contact with the input side terminal and the output side terminal of the lid.

前記した実施形態は下り信号を伝送し、電源電圧を上流側からＣＡＴＶ機器に供給する場合であるが、本発明はそれとは逆に、上り信号を伝送し、電源電圧を下流側からＣＡＴＶ機器に供給する場合にも適用できる。その場合は前記実施例における入力側端子が出力側端子になり、出力側端子が入力側端子になる。   In the embodiment described above, a downstream signal is transmitted and a power supply voltage is supplied to the CATV device from the upstream side. However, the present invention, conversely, transmits an upstream signal and transmits the power supply voltage from the downstream side to the CATV device. It can also be applied to supply. In that case, the input side terminal in the above embodiment becomes the output side terminal, and the output side terminal becomes the input side terminal.

本発明のＣＡＴＶ機器は、タップオフ以外のＣＡＴＶ機器に利用することができる。   The CATV device of the present invention can be used for CATV devices other than tap-off.

本発明のＣＡＴＶ機器の実施形態の一例であるタップオフの分解斜視図。The disassembled perspective view of the tap-off which is an example of embodiment of the CATV apparatus of this invention. 図１に示すＣＡＴＶ機器の内部の様子を示す部分内面図。The partial inner surface figure which shows the mode inside the CATV apparatus shown in FIG. 図１に示すＣＡＴＶ機器の短絡材が押し上げられた状態を示す断面説明図。Cross-sectional explanatory drawing which shows the state by which the short circuit material of the CATV apparatus shown in FIG. 1 was pushed up. 図１に示すＣＡＴＶ機器の短絡材の押し上げが解除された状態を示す断面説明図。Cross-sectional explanatory drawing which shows the state by which raising of the short circuit material of the CATV apparatus shown in FIG. 1 was cancelled | released. （ａ）は図１に示すＣＡＴＶ機器の蓋及び機器本体の電気回路の基本構成を示す説明図。（ｂ）は（ａ）に示すＬＥＤ及びフィルタ回路の他の例を示す説明図。(A) is explanatory drawing which shows the basic composition of the electric circuit of the lid | cover of a CATV apparatus shown in FIG. 1, and an apparatus main body. (B) is explanatory drawing which shows the other example of LED and the filter circuit which are shown to (a). 従来のＣＡＴＶ機器の使用の様子を示す縦断面図であり、（ａ）は短絡材が機器本体で押し上げられた状態の縦の断面図、（ｂ）は機器本体が蓋から取り外されて短絡材が降下した状態の縦断面図である。It is a longitudinal cross-sectional view which shows the mode of use of the conventional CATV apparatus, (a) is a longitudinal cross-sectional view in a state where the short-circuit material is pushed up by the apparatus main body, and (b) is a short-circuit material after the apparatus main body is removed from the lid. FIG.

符号の説明Explanation of symbols

１ タップオフ
２ 蓋
３ タップオフ本体
４ 螺子
５ 蓋ケース
６ 入力側端子
７ 出力側端子
１０ 短絡材
１３ 押し具
１６ ＬＥＤ
１８ フィルタ回路




DESCRIPTION OF SYMBOLS 1 Tap-off 2 Lid 3 Tap-off main body 4 Screw 5 Lid case 6 Input side terminal 7 Output side terminal 10 Short-circuit material 13 Pusher 16 LED
18 Filter circuit




Claims (1)

入力側端子と出力側端子とを短絡可能な短絡材を備えた蓋と、前記蓋に脱着可能であり、高周波系路、電源系路を備えた機器本体とから構成され、
前記蓋に機器本体が取付けられると、前記短絡材が機器本体により押されて蓋の入力側端子と出力側端子の双方又はいずれか一方から離れ、機器本体の高周波系路と電源電圧系路が入力側端子と出力側端子の双方に接触し、
前記蓋から機器本体を取り外すと、機器本体による短絡材の前記押しが解除されて、短絡材が蓋の入力側端子と出力側端子の双方に接触して、入力側端子に入力された高周波信号及び電源電圧が短絡材を通して出力側端子に出力されるようにしたＣＡＴＶ機器において、
報知器が前記蓋又は機器本体にそれらの外部から確認できるように設けられ、該報知器は、蓋から機器本体が取り外されることにより短絡材が蓋の入力側端子と出力側端子に接触すると短絡材を流れる高周波信号又は電源電圧によって作動し、蓋に機器本体が取付けられることにより短絡材が蓋の入力側端子と出力側端子から離れて機器本体の高周波系路と電源電圧系路が蓋の入力側端子と出力側端子に接触すると非作動となって、機器本体の高周波系路と電源電圧系路が蓋の入力側端子と出力側端子に接触したことを確認可能であることを特徴とするＣＡＴＶ機器。



A lid provided with a short-circuit material capable of short-circuiting the input-side terminal and the output-side terminal, and detachable from the lid, comprising a high-frequency system path and a device body provided with a power supply path,
When the device main body is attached to the lid, the short-circuit material is pushed by the device main body to leave the input side terminal and / or the output side terminal of the lid, and the high frequency system path and the power supply voltage system path of the apparatus body Touch both the input side terminal and the output side terminal,
When the device main body is removed from the lid, the push of the short-circuit material by the device main body is released, the short-circuit material contacts both the input side terminal and the output side terminal of the lid, and the high frequency signal input to the input side terminal And a CATV device in which the power supply voltage is output to the output side terminal through the short-circuit material,
An alarm is provided on the lid or the device body so that they can be confirmed from the outside, and the alarm is short-circuited when the short-circuit material contacts the input side terminal and the output side terminal of the lid by removing the device body from the lid. When the device body is attached to the lid, the short-circuit material is separated from the input side terminal and output side terminal of the lid, and the high frequency line and power supply voltage line of the device body are When it touches the input side terminal and the output side terminal, it becomes inactive, and it is possible to confirm that the high frequency system path and the power supply voltage system path of the equipment body are in contact with the input side terminal and output side terminal of the lid. CATV equipment.



JP2003404362A 2003-12-03 2003-12-03 CATV equipment Expired - Fee Related JP4351034B2 (en)

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