JP2596552Y2 - CATV equipment housing - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION The casing for CATV equipment of the present invention is:
It is used as a casing of a CATV device such as a branching device or a distributor of a CATV system.

[0002]

2. Description of the Related Art Various devices such as a branching device and a distributor are used in a CATV system. These CATV devices generally include a main body A (FIG. 3) for mounting a circuit board on which various electronic circuits are incorporated, and a lid B (FIG. 3) for covering the main body A.

The main body A is provided with two connecting protrusions C and D of different sizes, and the cover B has a fitting recess which covers the connecting protrusions C and D when the main body A is covered. E and F (different sizes) are projected, and when the cover B is put on the main body A, the large fitting recess E always covers the large connecting projection C, and the small fitting recess F is small. The child D is fitted over the child D in a certain direction. By the way, the reason why the fitting between the main body A and the lid B has a directivity is as follows.
This is to ensure that the input cable G is securely connected to the input terminal IN of the main body A and the output cable H is securely connected to the output terminal OUT of the main body A as shown in FIG. .

[0004] This type of CATV equipment P is usually shown in FIG.
(A), as shown in FIGS. 6 (a) and 6 (b), used by being suspended from a wire I. In this case, the directions of the input terminal IN and the output terminal OUT of the device P may not match the directions of the input cable G and the output cable H connected thereto. In this case, the fitting of the main body A and the lid B may be reversed, but as described above, the two connecting projections D and E have different sizes, and the two fitting recesses F and Since the size of G is also different, the fitting of the lid B to the main body A cannot be reversed while the main body A is suspended from the wire I. In addition, it is conceivable to remove the CATV device P from the wire I and change the direction of the entire device P (reversing it) to re-suspend it. However, it is very troublesome to re-suspend one by one.

Therefore, conventionally, as shown in FIG. 5 (b), the ends of the input side cable G and the output side
The outside of the device P for V is routed to the input terminal I of the device P.
N and the output terminal OUT.

[0006]

Problems to be solved by the invention As shown in FIG. 5 (b), when the cables are routed by being routed, there are the following problems. . The cable is easily damaged by an unnatural connection between the cable and the CATV equipment. . Cable wiring work is troublesome. . A wide space is required around the CATV equipment for the length of the cable, and wiring becomes difficult in a narrow space. . The cost is high because extra cables are required. . The appearance after wiring is poor because the cables are routed.

[0007]

The purpose of the present invention is to easily change the direction of fitting between the main body and the lid when the wiring direction of the cable (the direction of signal flow) does not match the input / output direction of the CATV equipment. (Inverted) Make the input / output direction of the cable for the CATV device coincide with the input / output direction of the cable, and connect to the CATV device without having to route the cable. In addition, the main body and the cover are usually always fitted in a certain direction. It is another object of the present invention to provide a CATV device housing as described above.

[0008]

As shown in FIGS. 1 and 2, a casing for a CATV device according to the present invention has a bottom cover on which two or more connecting projections 2 are protruded on the outer periphery and to which a circuit board can be attached. 3, two or more fitting recesses 4 that can be put on the bottom cover 3 and cover the outside of the connecting projection 2 of the bottom cover 3 when put on, and the input cable connection portion 4 and the output on the opposing side surface. In a CATV equipment housing composed of a main body 7 having a cable connection portion 5 and two or more connecting projections 2 of the bottom cover 3, the connection projections 2 are formed in a size that can be accommodated in the fitting recess 4. An auxiliary projection 8 that can be removed with a finger, a tool, or the like protrudes from one of the connecting projections 2. One of the two or more fitting recesses 4 of the main body 7 is provided with the auxiliary projection 8. Connecting projection 2 attached
The other fitting concave portion 4 is formed to have a size to cover the connecting protrusion 2 without the auxiliary protrusion 8.

[0009]

In the case for a CATV device according to the present invention, two or more connecting projections 2 of the bottom cover 3 are formed in a size that can be accommodated in the fitting recesses 4 of the main body 7, and one of the connecting projections 2 is located outside the connecting projection 2. An auxiliary projection 8 is protruded from the main body 7, and one of the two or more fitting recesses 4 of the main body 7 is formed to have a size to cover the connecting projection 2 with the auxiliary projection 8, The recess 4 is an auxiliary protrusion 8
The connecting projection 2 to which the auxiliary projection 8 is attached usually has a large fitting recess 4 ｛a fitting portion on the right side of FIG. It fits only in the mating recess 4 '. For this reason, the fitting between the bottom cover 3 and the main body 7 is always in a fixed (regular) direction.

Further, if the auxiliary projection 8 is folded and removed with a finger or a tool, the connecting projection 2 having no auxiliary projection 8 can be connected to another small fitting recess 4 (see FIG. 1A). Since the bottom cover 3 and the main body 7 can be fitted to each other by reversing the directions, the input cable and the input terminal of the bottom cover 3, and the output cable and the bottom cover can be fitted to the fitting recess 4｝. Since the output terminals 3 can be oriented in the same direction (the input and output directions are matched), wiring can be performed without routing cables.

[0011]

Embodiment 1 FIGS. 1 and 2 show a casing for a CATV device according to the present invention.
This will be described in detail based on the embodiment shown in FIG.

In these figures, reference numeral 3 denotes a bottom cover, which is formed at opposite positions on both sides of a rectangular metal plate 1 so that two connecting projections 2 project outward. The metal plate 1 has four protrusions 13 (FIG. 2) with screw holes for mounting a circuit board on the surface of the metal plate 1.

The two connecting projections 2 have the same shape and size, and one of the connecting projections 2 (FIG. 1A)
Two pin-shaped auxiliary projections 8 are provided outside the connection projection 2) on the right side of the projection. The auxiliary projection 8 is formed to have a strength that can be removed from the connecting projection 2 by being bent or cut by a finger or a tool as shown in FIG. 1B. A through hole 15 for inserting the screw 14 is penetrated through the connecting projection 2 as shown in FIG. 1 (a).

Reference numeral 7 in FIGS. 1 and 2 denotes a metallic lid which is formed in a box shape with a bottom opening, and has an outer periphery 22 covering the outer periphery of the bottom cover 3 on the entire outer periphery of the bottom opening 21. Is formed. A fitting recess 4 that covers the outside of the connecting protrusion 2 of the bottom cover 3 is formed on two opposing sides of the bottom opening 21. One of the two fitting recesses 4 is a fitting recess. 4 {the fitting recess 4} on the right side in FIG. 1 (a) covers the outside of the connecting projection 2 with the auxiliary projection 8 {the connecting projection 2} on the right side in FIG. 1 (a). The other fitting recess 4 {the fitting recess 4 on the left side in FIG. 1 (a) is connected to the other connecting protrusion 2 without the auxiliary projection {the connecting protrusion 2 on the left side in FIG. 1 (a)}. Further, a screw 14 inserted from the back side of the connecting protrusion 2 of the bottom cover 3 is screwed into the inside of each fitting recess 4 as shown in FIG. Screw holes 23 are formed.

As shown in FIG. 1 (a), one of two opposite side surfaces 24, 25 of the main body 7 has an input cable connecting portion 5 for connecting an input cable.
(Screw hole) is formed, and an output cable connection portion 6 (screw hole) for connecting an output cable is formed on the other side surface 25.

[0016]

Embodiment 2 The number of the auxiliary projections 8 may be three or more. The auxiliary projection 8 may have a shape other than a pin.

[0017]

Next, an example of use of the CATV equipment housing of the present invention will be described. First, the main body 7 is put on the bottom cover 3 on which electronic components are mounted and a circuit board on which they are electrically wired is mounted. At this time, the large fitting recess 4 of the lid 3 is put on the connecting projection 2 with the auxiliary projection 8 of the bottom lid 3, and the small fitting recess 4 is connected to the connecting projection 2 of the bottom lid 3 without the auxiliary projection. Cover. In this state, the screw 14 is screwed into the connecting projection 2 from the back surface of the bottom cover 3 to assemble the bottom cover 3 and the main body 7 in advance.

The CATV equipment thus assembled is hung on a wire, an input cable connected from the same direction is connected to an input cable connection part 5 of the equipment, and an output cable connection part 6 is connected to the output cable connection part 6 from the same direction. Connect the output side cable to be pulled in.

Next, since the directions of the input side cable and the input cable connecting portion 5 of the CATV device and the output side cable and the output cable connecting portion 6 of the CATV device do not match,
As shown in FIG. 5B, when it is necessary to route and connect the cable, the direction of the bottom cover 3 and the main body 7 covering the bottom cover are reversed. In this case, the bottom cover 3 is detached from the main body 7 and the auxiliary protrusion 8 of the connecting protrusion 2 with the auxiliary protrusion 8 of the bottom cover 3 is attached.
Can be folded, cut or removed. Then, the direction of the bottom cover 3 is rotated by 180 degrees, and the connection projection 2 from which the auxiliary projection 8 has been removed is fitted into the smaller fitting recess 4, and the connection projection 2 without the auxiliary projection 8 from the beginning. Is fitted into the larger fitting recess 4, and the bottom cover 3 is screwed to the main body 7 in this state. Thereby, the direction of the input side and the output side of the bottom cover 3 can be changed by 180 degrees while the main body 7 is suspended on the wire. Therefore, the input side cable can be connected to the input cable connection section 5 of the CATV device, and the output side cable can be connected to the output cable connection section 6 without routing the cable.

[0020]

[Effects of the Invention] The casing for CATV equipment of the present invention has the following effects. . Since the directions of the input cable connection portion 5 and the output cable connection portion 6 can be easily changed, wiring can be performed without routing the cable. . Normally, since the auxiliary projection 8 protrudes from the connecting projection 2 of the bottom cover 3, the bottom cover 3 and the main body 7 are not mounted in the wrong direction. . Since the cable can be wired without being routed, the wiring is easy, and the appearance after the wiring is good. Furthermore, there is no unnatural connection, so that there is little damage to the cable. . Since it is not necessary to lengthen the use length of the cable, the cost is also easy.

[Brief description of the drawings]

1A is an exploded view of a main body and a lid of a CATV device housing of the present invention, and FIG. 1B is a state in which the main body of the CATV device housing is rotated by 180 degrees to remove an auxiliary protrusion. FIG.

FIG. 2 is a bottom view of the CATV device housing of the present invention.

FIG. 3 is an exploded view of a main body and a lid of a conventional CATV device housing.

FIG. 4 is a bottom view of a conventional CATV equipment housing.

FIG. 5A is an explanatory diagram of connection of a cable to a conventional CATV device housing, and FIG. 5B is a diagram illustrating a cable wiring direction and a CAT.
Explanatory drawing of the state which pulled and connected the cable because the direction of the input / output end of the housing | casing for V apparatus did not correspond.

FIG. 6A is a plan view of a wiring state of a conventional CATV device casing, and FIG. 6B is a side view of the same state.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Metal plate 2 Connection protrusion 3 Bottom cover 4 Fitting recess 5 Input cable connection part 6 Output cable connection part 7 Main body 8 Auxiliary protrusion

Claims (1)

(57) [Scope of request for utility model registration] 1. A bottom cover 3 having two or more connecting protrusions 2 projecting from the outer periphery thereof, to which a circuit board can be attached, and a bottom cover 3 which can be put on the bottom cover 3 and connected to the bottom cover 3 when put on. In a CATV device housing, the housing includes two or more fitting concave portions 4 covering the outside of the protrusion 2 and a main body 7 having an input cable connecting portion 5 and an output cable connecting portion 6 on opposing side surfaces. Two or more connecting projections 2 of the bottom cover 3 are formed in a size that can be accommodated in the fitting recess 4, and one of the connecting projections 2 is
An auxiliary protrusion 8 that can be removed with a finger, a tool, or the like protrudes from the outside of the body, and one of the two or more fitting recesses 4 of the main body 7 is connected to the connecting protrusion 2 to which the auxiliary protrusion 8 is attached. A CATV equipment housing, wherein the casing is formed to have a size to cover the connecting protrusions 2 without the auxiliary protrusions 8.