JPS5840830B2 - Outdoor CATV equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION This invention is a device used to amplify, branch, and distribute signals sent through transmission lines in CATV installations. This invention relates to outdoor CATV equipment that is used in a hanging manner.

In conventional outdoor CATV equipment of this type, the case consists of a main body with an opening on the side and a lid that closes the opening of the main body. Something that protects the internal electronic circuit from rain (for example, Utility Model No. 48-1015)
In the case of the one shown in Japanese Patent No. 14), since the joining surface of the main body and the lid face in the vertical direction, the joining surface easily gets wet by rainwater during rain.

Therefore, after long-term use, the bonding surfaces eventually corrode, leading to the inconvenience of rainwater entering the inside of the case and damaging the electronic circuit.

Therefore, the present invention has been developed to eliminate the above-mentioned drawbacks, and is an outdoor CATV device that can maintain a good waterproof effect over a long period of time, and also allows for easy adjustment and checking of internal circuits. This is what we are trying to provide.

The drawings showing the embodiments of the present application will be described below.

In FIG. 1, 1 is a utility pole, 2 is a messenger wire, and 3 is a transmission line, generally a flexible coaxial cable is used, and the messenger wire 2 is suspended using a binder 4.

Note that this may be integrated with a metsenger wire.

5 is a CATV suspended from Metsenger wire 2
Equipment for main line amplifier 1 splitter, or splitter,
Distributors, power supply devices, etc. can be used depending on the purpose.

Note that this may also be attached to the telephone pole 1.

Next, FIGS. 2 to 6 showing this CATV equipment 5 will be explained.

Reference numeral 6 denotes a base body, which is generally manufactured using an aluminum alloy.

Reference numeral 7 denotes a mounting portion integrally formed with the base body 6. 8 is a holding piece, and 9 is a fixing screw, which are provided to fix the base body 6 to the wire 2 via the holding piece 8 so as to be normally pivoted.

Next, reference numeral 11 denotes a lid body, which, like the base body 6 described above, is generally formed using an aluminum alloy.

Next, as a transmission line connection part, a fitting fitting and a second
It is constructed such that it can be connected to the transmission line 3 by attaching an F-type plug 14 as shown in the figure.

Reference numeral 15 denotes a printed circuit board exemplified as a circuit element provided within the lid body 11, and is attached to the mounting seat 16 using an appropriate set screw.

As is well known, this printed circuit board 15 includes an amplifier circuit,
A branch circuit, 1 branch circuit, etc. are constructed.

In some cases, the circuit element is directly fixed within the lid 11 without using a printed circuit board.

Next, 17 is a screw hole drilled in the lower surface of the base 6, 18 is a fastener insertion hole drilled in the lid 11, and 19 is a threaded rod exemplified as a fastener, which is inserted into the insertion hole 18. Screw hole 17
The lid body 11 is fixedly attached to the base body 6 by screwing it into the base body 6.

Next, 20 is a recessed groove, and 21 is a gasket fitted into the recessed groove 20, which is provided to ensure complete waterproofing of the facing portion of the base 6 and the lid 11.

22 is a hanging portion, as shown in FIGS. 2 and 6, the base 6
The lid body 11 is formed so as to be positioned on the outside of the lid body 11 when the lid body 11 is attached to the lid body 11 facing each other.

23 is a groove provided around the plug mounting hole 13;
A waterproof cap (not shown) is fitted to cover the periphery of the cap.

As described above, in this invention, the lid body 1 is attached to the base body 6.
1 are attached facing each other from the lower side, and the hanging part 22 is placed on the circumferential side of the upper base body 6 so as to be located outside the lid body 11. In this case, the rainwater that has fallen on the base body 6 is drained downward from the dripping part 22, and the opposing part of the base body 6 and the lid body 11 can be kept dry at all times, thereby preventing corrosion of this part. There is a filter that can maintain a good waterproof effect for a long period of time.

Moreover, even if the base 6 and the lid 11 are vertically opposed to each other as described above, the lid 11 can be removed downward, and the lid 11 is equipped with circuit elements and connection parts. Therefore, even if this device is installed at a very high position, such as when it is suspended from the Metsenger wire 2, and the interior is opened to make adjustments, the lid 11 must be opened so that the internal mechanism faces the eye. It has the advantage of being able to face the lid 11 in a very easy-to-see state and working in a comfortable position. The lid body 11 can be closed while maintaining the adjusted positional relationship between the transmission line connection section and the connection line connecting these, and this type of high-frequency There is an advantage in that even if it is a device, its characteristics can be maintained well.

Furthermore, in this invention, even if the upper base body and the lower lid body are required to be joined facing each other, the insertion hole is formed in the lid body from the lower surface of the lid body to the lower surface of the base body. The lid body is fixed to the base body by inserting the fastener into the insertion hole and screwing the insertion tip into the screw hole formed on the bottom surface of the base body. Therefore, the above-mentioned hanging part can be made into a simple shape, and it is possible to prevent dust from adhering there even when exposed to mixed wind and rain, and it is possible to prevent corrosion as mentioned above. This has the advantage of making the effect even more noticeable.

Moreover, with the above configuration, the screw holes in the base are located inside the periphery of the base, so even if the base is exposed to rain as described above, the screw holes will not be drilled. There is also the advantage that parts can be made difficult to get wet, thereby preventing corrosion of those parts and improving durability.

[Brief explanation of the drawing]

The drawings show an embodiment of the present application, and FIG. 1 is a diagram showing an installed state, FIG. The figure is a side view, Figure 4 is a plan view of the base, Figure 5 is a top view of the lid, and Figure 6 is a VI.
-VI line sectional view. 2...Metsenger wire 6...
・Base body. 11... Lid body, 22... Hanging part.

Claims (1)

[Claims] 1. A concavely formed lid body is attached to the lower surface of the base body, which is attached and fixed facing downward to a fixed object, and a circuit element is built in the lid body, while a circuit element is built in the base body. A hanging group is disposed on the circumferential side of the lid so as to be located on the outside of the lid, and the lid is further provided with a fastener that penetrates from the lower surface of the lid toward the side opposite to the lower surface of the base. An insertion hole is formed, and a screw hole is formed on the lower surface of the base at a position opposite to the insertion hole, and the insertion hole further includes:
Insert the fastener for fixing the lid to the base from the bottom side of the lid, and screw the insertion tip into the screw hole to attach the lid to the bottom of the base. Outdoor installation type CATV equipment characterized by the following.