JPS587996Y2 - series unit - Google Patents

Description

[Detailed description of the invention] This invention is usually attached to the wall of a building, and the user can connect a power line to it as necessary to send a certain signal from there to a broadcasting device, such as a television receiver. This invention relates to a series unit capable of being sent out.

In this type of series unit, it is preferable to cover the entire unit with a decorative plate (also called a flash plate) so as not to spoil the interior decoration of the room.

However, in order to make an electrical connection, at least one end of the connector seat (the end of the connection exposed to the front) must be exposed through the hole in the decorative plate.

However, the through holes drilled in recent decorative plates are not necessarily formed to correspond to the shape of the stopper seat, and there are various plates with holes such as square or oval shapes.

Therefore, various auxiliary materials are required to fill the gap between the hole provided in the decorative plate and the exposed end of the stopper seat.

Therefore, the present invention makes it possible to easily attach the holder and the plug seat, which serve as the auxiliary materials, to the main frame, and also to make the electrical connection between the plug seat and the main frame extremely simple. It is an object of the present invention to provide a series unit configured to be constructed quickly.

1 to 5 showing embodiments of the present application will be described below.

In series unit) A, 1 is a housing, which consists of a main frame 2, side frames 2', 2', and a back cover 2'' established on both sides of the main frame, and also includes the main frame 1 and side frames 2'. , 2' are usually integrally formed by press-molding a metal plate.

Reference numeral 3 denotes a hole used when this unit A is attached to an embedded box (for example, a switch box, an outlet box, etc.) provided on the wall of a room as a building, as is well known.

Numeral 4 is a hole for a wood screw, which is used when fixing the unit to a wall plate as is well known.

Reference numeral 5 denotes a tapped hole that is normally used for attaching a flash plate.

Reference numerals 6 and 6 designate feeder connection parts provided on the frames 2' and 2' on both sides, and as is well known, the feeder line (coaxial cable ) is provided to fasten the
7 is a metal fitting for connecting the outer conductor of the coaxial cable;
8 indicates a terminal fitting for connecting the center conductor.

Note that the back cover 2'' is usually formed of a metal plate, and is fixed so as to cover a space 9 on the back side of the main frame surrounded by both side frames 2', 2', as is well known.

In addition, the above-mentioned space 9 is provided with various electric circuit elements (e.g., capacitors, coils, resistors, etc.) necessary for configuring branching and distribution circuits, etc., as is well known, so that the above-mentioned circuit is constructed. .

Next, the signal extraction section 10 provided in the main frame will be explained.

Note that two or three of these take-out portions are arranged as required.

11 is a mounting hole drilled in the center of the main frame 2; 12
is a holder for the plug seat that is inserted into the mounting hole 11, and is usually integrally formed using a synthetic resin material, but may also be made of a metal material.

On the outer periphery of this holder 12, there is a protruding part 13 which is larger in diameter than the mounting hole 11, and below this protruding part there is a mounting hole as shown in FIG. The locking protrusion 14 is configured to engage with the locking recess 11' on the edge of the hole 11.
are integrally formed, and the position fixation of the holder relative to the main frame 2 is determined by these.

In addition to the method described above, this positioning method includes providing a protruding piece on a part of the periphery of the mounting hole, and forming a hole or groove in the protruding part of the holder so that the protruding piece can be inserted therein. , and the position is determined by fitting the two, or the mounting hole 1
Any method can be used, such as drilling the hole 1 in a shape other than the circle shown in the drawings, a square shape, an ellipse, etc., and making the outer shape of the inserted portion of the holder 12 correspond to that shape to position the holder 12.

Furthermore, the external shape of the overhanging portion 13 of the holding body 12 that is exposed to the outside from the main frame 2 is such that it fits into the internal shape of a through hole 15' formed in the flash plate 15, for example. It has a shape corresponding to the oval shape, and its end surface has a plate attached as shown in Fig. 2.3.
It is formed so as to be flush with the surface 15'' of the plate 15, so that the appearance is maintained externally.

Reference numeral 16 denotes a plug seat, which is connected to a cylindrical outer conductor 17 made of a metal material and a center conductor 19 held at the center by an insulator 18, as is well known.

The insulator 18 is made of fluororesin, epoxy resin, polyethylene porcelain, etc., and is press-fitted into the outer conductor 17.

Further, 19' is a retaining portion in the center conductor 19.

At one end of the plug seat 16, a connecting portion 20 to which a commonly known signal extraction plug is connected is connected to the holder 12.
The connecting portion 20 is located in a housing space 21 which is open on the front side and is formed with a sufficient margin, and the end surface of the connecting portion 20 is also flush with the surface 15'' of the plate 15 as shown in the figure.

In FIG. 4, the dimensional relationship of each member in the connecting portion 20 is as follows, by way of example.

That is, protrusion length X = 9.6, outer diameter Y of the outer conductor = 9.6,
Outer diameter Z of the center conductor = 2.4 (unit: mm).

Further, the inner circumferential diameter of the space 21 is usually adapted to the outer diameter of the flange portion, which will be described later.

Reference numeral 22 denotes a flange portion integrally formed on the outer periphery of the outer conductor 17 in a projecting shape, and is designed to abut against the base portion 12' of the holder 12.

That is, the through hole 25 provided at the base of the holder 12 is formed to have a diameter smaller than the outer diameter of the flange portion 22, so that the flange portion 22 comes into contact with the locking portion 23 located at the inner edge of the hole. This is so that the plug seat 16 is locked in contact with the valve seat 16.

Further, a cutout part 22' is provided on a part of the outer circumference of the flange part 22, and a fitting part 23' formed in a corresponding manner so that the cutout part 22' fits into the base part 12' is provided. These fittings prevent the plug seat 16 from rotating relative to the holder 12.

Further, the through hole 25 is located at the other end 20' of the plug seat 16.
The outer conductor is inserted through the space 9 and exposed in the space 9.

Reference numeral 24 indicates a male thread carved on the outer periphery of the outer conductor at the other end 202.

The center conductor 19 is also exposed in the space 9, and the above-mentioned circuit is connected to this portion as is well known, so that it is electrically connected to the power supply line.

Reference numeral 26 denotes a member to be tightened, which is made of a metal material (generally preferably elastic) and whose base 2
6' is provided with a through hole 27 through which the male threaded portion of the external conductor 17 is inserted, and at the periphery of the through hole 27 is a cutout 24' that is shaped like the male threaded portion. A retaining portion 27' is formed correspondingly to engage with the retaining portion 27'.

Reference numeral 28 denotes a protruding part integrally formed to protrude from the base part 26', and when the free end of the protruding part is brought into contact with the main frame 2,
The length is such that there is a slight gap between the base 26' and the base 12' of the holder.

Incidentally, this may be formed in an annular shape with respect to the base portion 26'.

Reference numeral 30 denotes a tightening nut having a female thread 30' that is screwed into the male thread 24 of the external conductor 17, and is made of a metal material, but may also be made of a synthetic resin.

In addition, when this bolt 30 is tightened, the external conductor 17 is electrically stably connected (grounded) to the housing 1.

Next, the assembly of the signal extraction section 10 having the above configuration will be explained.

First, the holder 12 is fitted into the mounting hole 11 of the main frame 2 from the flush plate mounting side, and the plug seat 16 is further fitted into the holder 12.

In this case, the plug seat 16 may be combined with the holder 12 in advance.

Next, attach the member to be tightened 26 from the opposite side (back side) of the main frame 2 to the above so that the male thread 24 of the plug seat 16 is inserted into the through hole 27 of the member, and then A tightening nut 30 is screwed onto 24.

At this time, when the protrusion 28 of the member to be tightened 26 is simply in contact with the main frame 2 as shown in FIG. 5, the base 26' of the member to be tightened and the base 12' of the holder are There is a gap 31 between them.

By simply tightening the tightening nut 30 from this state, the protrusion 28 of the member to be tightened 26 is compressed so as to expand outward, and the holder 12 is elastically deformed so as to be stretched. , as shown in FIG. 2.3, the base 26' and the base 1
2' is in contact.

As a result, the abutting end 1 of the overhanging portion 13 of the holding body 12
3' and the free end 28' of the member to be tightened 26 press against each other, so that the main frame 2 is further clamped.

Therefore, the plug seat 16 is firmly attached to the holder 12, and the holder 12 is simultaneously and firmly attached to the main frame 2.

Furthermore, as is clear from the above, the tightening nut 30 receives a strong reaction force in the anti-tightening direction, so that loosening due to vibrations during transportation is prevented and a firm tightened state is maintained.

Next, FIG. 6 showing a different embodiment of the present application will be described.

This figure shows an example in which different means are used to fix the plug seat, in which an engaging recess 33 is provided in the protruding portion 20'e into the housing of the external conductor 17e of the plug seat 16e, and one A locking piece 34 is integrally provided upright from a part of the periphery of the through hole 27e in the member to be tightened 26e, and the locking piece 34 is caulked into the engagement recess 33 as shown in the figure, and the plug seat is secured. 16
This figure shows a configuration in which the main frame 2e is fixed to the main frame 2e.

Further, the insulator 18e in the plug seat 16e is connected to the outer conductor 1
7e and brought into contact with a preformed step 35, and then the end 35' of the conductor 17e is plastically deformed and fixed as shown.

It should be noted that parts that are considered to have the same or equivalent structure as those in the previous figure in terms of function are given the same reference numerals as in the previous figure with the letter e, and redundant explanations are omitted.

(Furthermore, in the next and subsequent works, the alphabets f, g, and h will be added in order based on the same idea, and redundant explanation will be omitted.

) FIG. 7 shows an example in which the outer conductor 17f and the holder 12f of the plug seat 16f are integrally formed with a metal material,
As a result, the conductor 17f is grounded to the main frame 2f, regardless of the material of the member to be fastened 26f.

The fitting seat 16f is fixed by caulking a locking piece 36' provided on the member to be tightened 26f into the engagement recess 36 provided on the outer periphery of the external conductor 17f, similar to the one in FIG. The insulator 18f is also individually defined between the step portion 37 and the plastically deformed end portion 37'.

FIG. 8 shows that after the member to be tightened 26g is attached, the end portion 38 of the outer conductor 17g on the connector seat 16g is caulked toward the member to be tightened 26g as shown in the figure. Bottle seat 1
6 shows an example in which g is fixed.

Next, FIG. 9A shows the front external shape (oval shape) of the holder, and the opening in FIG. 9 shows a different shape (rectangle).

In addition, the respective sizes are usually - for example, a = 22 + 0.2, b = 16.5 ± 0.2 to comply with the Japanese Industrial Standard (JIS-C-8303) for wiring plug connectors.
, C-28±0.2, d = 22.7±0°2 (unit: mm).

Figures 10 and 11 show two connector seats 16 h and 16
The figure shows an example in which a serial unit is provided with a holder 12h, and the respective holders 12h and 12h are integrally formed.

In addition to this, in addition to the pair of screw holes 5h and 5h for mounting the flush plate, there is another pair of screw holes with different dimensions (
The enlarged threaded holes 39 and 39 are provided so that other flash plates with different screw fixing positions can also be attached.

Furthermore, the protrusion piece 40 that forms this screw hole 39 has a crease 41 at its base as shown in FIG. 11, so that the piece 40 can be easily bent or cut as necessary. I'm trying to get away from it.

The dimensions between the screw holes 5h and 5h and between 39.39 and 39.39 are as follows:
They are typically formed to be 68 mm and 101±0.4 mm, respectively - as an example.

As described above, in this invention, the holder 12 is attached to the main frame 2, and the holder has one end exposed and the other end exposed on the back surface of the main frame 2. Since it is equipped with a stopper seat 16, when using it, the entire body can be fixed to the building via the main frame 2. One end of the frame 16 is exposed, and the other end protrudes from the back of the main frame 2 so that connection parts such as power supply lines are not visible. Also, since there is a holder 12, it can also be used as a through hole in a decorative plate. It has a convenient configuration for normal use, such as being able to match.

Moreover, even if the configuration is convenient for use as described above, the holder 12 is stacked on the main frame 2, the plug seat 16 is inserted into the holder 12, and the flange portion 22 of the plug seat 16 and tightening nut) 30 (or the overhanging portion, that is, the portion that overhangs the outer circumferential side of the end 35' in FIG. 6, or the 8th
The end portion 38) in the figure and the locking portion 2 of the holder 12
3 and the member to be tightened 26, when assembling them, tighten the tightening nut 30 (or tighten the locking piece 34 in FIG. 6 or the end 38 in FIG. 8). There is a practical structural effect in that the holder 12 can be fixed to the main frame 2 and the plug seat 16 can be fixed to the holder 12 at the same time with the simple effort of deforming the main frame 2.

Moreover, at the same time as the work of fixing both of them to the main frame 2, it is possible to electrically connect the external conductor 17 of the plug seat 16 and the main frame 2 located at a distance from this. This has the practical effect of being able to quickly assemble even the series units that have a complicated structure and serve a certain function as described above.

[Brief explanation of the drawing]

The drawings show an embodiment of the present application, and FIG. 1 is a perspective view of the series unit, FIG. 2 is a cross-sectional view taken along the line II--II of FIG. 1 with a flash plate attached, and FIG. 1 is a sectional view taken along the line III--III in Fig. 1, Fig. 4 is an exploded perspective view illustrating the assembly of the connector seat, Fig. 5 is a partial sectional view showing the state of the tightening nut immediately before tightening, Figs. 8 is a sectional view showing different embodiments, FIG. 7 is a reference drawing showing an embodiment other than the present invention, FIG. 9 is a diagram showing two sides of the outer shape of the holder, and FIGS. 10 and 11. The figures show an example in which a series unit is equipped with two plug seats, and FIG. 10 is a perspective view, and FIG. 11 is a cross-sectional view taken along the line MM in FIG. 10. 2...Main frame, 12...Holding body,
16... Junction seat, 17... Outer conductor,
18... Center conductor, 13... Overhanging part,
22...Flange portion, 24...Male thread, 30...Tightening nut, 26...Tightened member, 28...Protrusion Haribe.

Claims (1)

[Scope of utility model registration request] A main frame capable of being fixed to a building; a holding body capable of being attached to the surface of the main frame; and a holding body fixed to the holding body and having one end exposed to the surface. The plug seat has its other end exposed on the back surface of the main frame through a hole drilled in the holder and a hole drilled in the main frame, and is provided at the center of the other end. In a series unit in which a feeder line can be connected to a central conductor that is connected to the center conductor, an overhang portion having a diameter at least larger than the diameter of the hole provided in the main frame is formed on the outer periphery of the holder. Further, the hole edge of the hole in this holding body is provided with a locking part having a smaller diameter than the outer diameter of the flange part formed in an overhanging shape around the plug seat, and further The external conductor at the other end of the connector seat has a male thread formed on the protruding part exposed on the back side of the main frame, which corresponds to the female thread provided on the tightening nut, and this male thread also has a tightening nut attached thereto. The screwed together or said protruding part is provided with a protruding part, and further, between said tightening nut or said protruding part and the flange part of said plug seat, a locking part of said holder and a protruding part are provided. , a member to be tightened which is provided with a protruding portion and is entirely made of a conductive material is interposed,
They are fastened with the tightening nut or the overhang and flange, and when the member to be tightened is tightened, the overhang is in pressure contact with the main frame. A serial unit characterized by: