JPS6244618Y2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a branch/distributor case for televisions, etc., and more particularly to a branch/distributor case that facilitates connection between input/output wires and branch/distributor circuits.

A plurality of branch distributors such as televisions are connected in a row to a receiving antenna line, and by connecting a television receiver to each of these individual branch distributors, communal reception can be achieved using a single receiving antenna. is possible.

BACKGROUND ART Conventionally, as a branch/distributor case installed indoors, for example, a case having a shape as shown in FIG. 1 is known.

FIG. 1 shows a protruding type branch/distributor case 1. In this branch/distributor case 1, an electric circuit 3 for the branch/distributor is housed in a case body 2, and an input/output cable 4 for TV signals, etc. is connected to the electric circuit 3. Case body 2
It is connected via screws 5 and 6 provided on the top surface. This branch/distributor case 1 is arranged in a box 8 attached to the surface of a wall 7.

As the number of branch distributors connected in series to one antenna line increases, the input/output cable 4 becomes thicker in order to reduce loss in the cable. If you try to connect such a thick cable 4 directly to each branch/distributor 1, the thick cable 4 will be difficult to bend and will not only be difficult to connect to the branch/distributor 1, but also the cable 4a near the box opening 8a will be damaged. This was undesirable because the wiring would come loose from the wall surface.

Therefore, the thick cable 4 is converted into a thin cable via a relay connector and then connected to the branch/distributor case 1. This method has the disadvantage that a relay connector must be provided separately, which requires time and effort for wiring work.

The present invention was made in order to eliminate the drawbacks of the prior art as described above, and the purpose is to provide a case for a branch distributor that facilitates the connection work between the input/output wires and the branch distributor circuit. do.

In order to achieve this purpose, the present invention provides an input/output wire insertion hole in the side wall of the case body, and also provides a screw hole in the case body that is approximately perpendicular to the insertion hole and reaches the insertion hole. By press-contacting the input/output wire inserted into the insertion hole with a screw screwed into the screw hole, the input/output wire and the branch/distributor electric circuit are connected.

Hereinafter, one embodiment of the present invention will be described based on the accompanying drawings. In addition, in the following drawings, the first
The same parts as in the figures are indicated by the same reference numerals.

2 and 3 are perspective views of the case for the branch distributor. This case 11 for a branch/distributor has an electrical circuit for the branch/distributor housed in a case body 12.

The case body 12 consists of a main part 12a made of a die-cast case or the like with an open upper end, and a brim-shaped lid part 12b made of plastic or the like fixed to the upper end opening. Input/output wire insertion holes 13, 13 are provided in the lower side wall of the main portion 12a, and the insertion holes 13, 13 are provided in the upper surface of the lid body 12b.
Two screw holes 14 and 15 are bored in a direction substantially perpendicular to the insertion holes 13 and 13, respectively.

In FIGS. 2 and 3, 16 is a locking metal fitting having an L-shaped cross section, and has a locking claw 16a at its lower end.
Attach the upper bent portion to the case body main portion 1 via the screw 17.
2a, this locking pawl 16a protrudes outward and engages with the inner wall of the box 8 (see Figure 1) that houses the case 11 for the branch/distributor, thereby fixing the case 11 within the box 8. . There is a risk that the locking fittings 16 may come off the case body main portion 12a due to the screws 17 loosening due to vibrations or the like during transportation of the branch/distributor case 11. Therefore, an elastic contact piece 18 that constantly presses the outer surface of the locking metal fitting 16
is provided protrudingly from the lower surface of the flange of the lid body 12b, and the locking metal fitting 16
This prevents the withdrawal of

Reference numerals 19 and 20 indicate output terminals protruding from the top surface of the lid 12b, from which radio waves received by a television receiver, radio receiver, etc. are output. Reference numeral 21 denotes a box attachment groove drilled in the brim of the lid 12b, and 22 denotes a screw hole for attaching a flash plate drilled in the center of the lid 12b.

FIG. 4 is a plan view of the branch/distributor case 11, and FIG. 5 is a front view thereof. Input/output wire fixing screws 23 and 24 are inserted into the screw holes 14 and 15, respectively. Screw holes 1 above the heads of these screws 23 and 24
Protrusions 25 and 26 are provided on the inner walls of the branch distributor case 11, respectively, to prevent the screws 23 and 24 from loosening and coming off from the screw holes 14 and 15 due to vibrations during transportation of the branch distributor case 11. There must be.

FIG. 6 is a sectional view taken along the line A--A in FIG. 4, and is an explanatory diagram of the installation of the branch/distributor case 11. A printed circuit board 34 incorporating a branch/distributor electric circuit 33 is disposed within the main portion 12a of the branch/distributor case 11. A printed circuit board 34 located in the axial direction of the screw hole 15 provided in the lid body 12b
is provided with a screw receiving part 35, and this screw receiving part 3
An input/output wire guide frame 36 is fixed to the back surface of the printed circuit board 35 so as to surround the input/output wire guide frame 5 . An input/output wire contact member 37 is attached to the guide frame 36 at a position facing the screw receiving portion 35, and this contact member 37
is connected to the electric circuit 33. Therefore, the shielded wire portion 4b of the input/output wire (for example, coaxial cable) 4 inserted into the case main body main part 12a from the insertion hole 13 is inserted into the electrical circuit through the case main body main part 12a by screw 23. 33, and on the other hand, the core wire portion 4c of the input/output wire 4, which is guided and inserted into the guide frame 35, is pressed into contact with the contact member 37 by the screw 24, and the core wire portion 4c is connected to the electric circuit 33. Ru.

In order to attach the branch/distributor case 11 containing the electric circuit 33 configured in this way to the wall 7,
After fixing the box 8 to the wall surface with the screws 40, insert the branch/distributor case 11 containing the electric circuit 33 into the box 8, and insert the screw 41 inserted into the mounting groove 21 and the locking fitting 16 (sixth (not shown in the figure) in the box 8. Next, connect the input/output wire 4 to the box opening 8a of the box 8.
Insert it from the branch distributor case 11 as it is.
After inserting the flash plate into the insertion hole 13 and fixing it with screws 23 and 24, the flash plate is fixed to the surface of the lid body 12b with screws to complete the installation. This branch/distributor case 11 has an input/output wire insertion hole 13 provided at the bottom of the side wall of the case main body 12a, so the input/output wire 4 is inserted into the insertion hole 13 without being bent and fixed with screws 23 and 24. You can easily connect by just doing this.

FIG. 7 shows the branch/distributor case 11 housed in the box 8 embedded in the wall 7, and the method of mounting is the same as that described above.

As explained above, according to the case for a branch distributor according to the present invention, an input/output wire insertion hole is provided in the side wall of the case body, and a screw hole is provided in a direction substantially perpendicular to the insertion hole and reaches the insertion hole. Since the input/output wires are provided in the case body, in order to connect the input/output wires to the branch/distributor electric circuit housed in the case body, the input/output wires must be inserted into the insertion hole without bending. The input/output wires can be easily connected by simply screwing in the input/output wire fixing screw inserted into the screw hole. Furthermore, since the inner wall of the screw hole is provided with a protrusion above the head of the screw, the screw inserted into the screw hole will not come out due to vibrations that occur when transporting the branch distributor case that houses the electric circuit. The effect is that there is no

[Brief explanation of the drawing]

Figure 1 is an explanatory diagram of a conventional case for a branch distributor.
2 and 3 are perspective views of a case for a branch distributor according to an embodiment of the present invention, FIG. 4 is a plan view of FIG. 2, FIG. 5 is a front view of FIG. 2, and FIGS. 7
The figure is an explanatory diagram of the attachment of the branch distributor case shown in the cross section taken along the line A-A in FIG. 4. 4... Input/output wire, 1, 11... Case for branch distributor, 12... Case body, 13... Input/output wire insertion hole, 14, 15... Screw hole, 23, 24...
...Input/output wire fixing screw, 25, 26...protrusion,
33... Electric circuit for branch distributor.

Claims (1)

[Scope of utility model registration request] A case body that houses an electrical circuit for a branch distributor, an input/output wire insertion hole provided on a side wall of the case body, and an input/output wire insertion hole provided in the case body in a direction substantially perpendicular to the insertion hole and reaching the insertion hole. comprising a screw hole, an input/output wire fixing screw inserted into the screw hole for fixing the input/output wire inserted into the insertion hole, and a protrusion provided on the inner wall of the screw hole above the head of the screw, By pressing the input/output wires inserted into the insertion hole with the fixing screw,
A case for a branch distributor that connects an input/output wire and the electrical circuit for the branch distributor.