JPH04357680A - Television cable connection device - Google Patents

Abstract

PURPOSE:To improve workability by stopping one end of a fitting for pressing an exposed shield coating part of a coaxial cable in engagement with a shield case side surface so that the fitting is rotated freely and by mounting the other end through a compression spring and a fastening bis with free opening. CONSTITUTION:A terminal board 20 provided with a terminal fitting made of insulating material, for connecting a signal wire of a coaxial cable 45, is provided on a shield case side surface. One end 15c of a press fitting 15 for pressing an exposed shield coating part of the coaxial cable 45 is stopped in engagement with a fine hole 19 on the shield case side surface so that the fitting is rotated freely, while the long hole of the other end 15a is penetrated by a fastening bis 16 through a compression spring 18, and the bis is fastened with free opening. Since the pressing of the shield coating part of the coaxial cable 45 is carried out by merely fastening or losening the bis 16, the workability is drastically improved compared to a prior art in which two bises are operated.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a television connector.

0002

[Prior Art] A conventional TV connection device of this type is shown in Fig. 1.
There are some as shown in 1. In the figure, 3 is a holding metal fitting, 4 is a screw for holding the coaxial cable against the side surface of the shield case 2 with the holding metal fitting 3, and 5 is a signal line connection terminal fitting for tightening the signal line of the coaxial cable with a screw 6.

0003

[Problems to be Solved by the Invention] In the above-mentioned conventional example, since the presser metal fitting 3 that presses the shield coating of the coaxial cable against the side surface of the shield case 2 is attached at both ends with screws 4, when holding the coaxial cable, , it was necessary to loosen and tighten the screws 4 at both ends, which was very troublesome.

The present invention has been made in view of the above-mentioned problems, and its purpose is to provide a television connector in which the shield covering of a coaxial cable can be easily pressed onto a shield case. be.

[0005]

[Means for Solving the Problems] In order to achieve the above-mentioned object, the present invention includes a substantially rectangular parallelepiped-shaped shield case, a receiving blade fitting and a cylindrical electrode body in the center of the upper surface thereof, with the receiving blade fitting as the center. A terminal made of insulating material and used to connect the signal line of a coaxial cable in a TV connector consisting of an integrally formed protruding base with concentrically arranged outlet parts and a cover whose bottom part is placed on the upper surface of the shield case. A terminal block with a metal fitting is installed on the side of the shield case, and one end of the holding metal fitting that holds the exposed shield coating of the coaxial cable is rotatably locked on the side of the shield case, and the other end is attached to the shield case with a tightening screw. It is attached to the side so that it can be expanded freely.

[0006]

[Operation] According to the present invention, when pressing the shield covering of the coaxial cable with the signal line connected to the terminal fitting against the shield case, loosen the tightening screw at the other end of the holding fitting.
Rotate around one end of the holding bracket to open it, and in this state, insert the shield covering of the coaxial cable between the holding fitting and the shield case and tighten the tightening screws. Loosen the two screws. This improves work efficiency compared to the conventional method, which requires tightening and tightening.

[0007]

EXAMPLES The present invention will be explained below by way of examples. Figure 1
is an exploded perspective view of one embodiment, and FIG. 2 is a side view thereof.
The cover is made of a synthetic resin molded product with insulation properties against high frequencies of ~800 MHz.The center of the cover 1 forms a protruding base 1a that protrudes upward, and a coaxial cable shield is placed in the center of the protruding base 1a. A recess 9 is provided with a cylindrical protrusion 13 protruding from the inner bottom into which a cylindrical electrode body 7 constituting a receptacle part for connecting a wire is fitted. The width dimension W of this cover 1 in the direction of both ends is set to the dimension of a single module corresponding to the mounting frame of a series switch box, which will be described later.
The width T of the protruding base 1a in both directions is set to correspond to the opening width of both sides of the opening of the mounting frame.

2a in the figure is a divided body for a shield case. The divided body 2a for a shield case has a center piece that is exactly the same size as the bottom surface of the cover 1, and a cover 1 is mounted on the top surface of the center piece. Set up Reference numeral 10 designates recesses into which projections 11 provided at both ends of the bottom surface of the cover 1 are fitted to position the cover 1. Reference numeral 12 denotes the lower end portion of the cylindrical protrusion 13 that extends into the recess 9 as described above by passing the narrow diameter portion of the lower end through a hole (not shown) drilled at the bottom of the recess 9 of the cover 1. This is a hole for inserting the. Holes 14, 14 are provided on both sides of this hole 12, through which tongue pieces 8, 8 extending from both lower ends of the cylindrical electrode body 7 are inserted. After the tongue pieces 8, 8 are inserted through the holes 14, 14, their tips are caulked and fixed to the center piece of the shield case divided body 2a. Of course, it may be fixed by soldering.

Reference numeral 15 denotes a holding fitting for holding and fixing the coaxial cable to both sides of the shield case split body 2a, and this holding fitting 15 is shown in FIGS. 3(a) and 3(b).
, an L-shaped piece 15a bent into an L-shape as shown in (c).
and a U-shaped piece 1 extended and curved at the tip of the L-shaped piece 15a.
5b, and a Z-shaped piece 15c extending in a Z-shape from the tip of the U-shaped piece 15b, and the L-shaped piece 15a
A tightening screw 16 is inserted into a long hole 15d drilled in the long piece of the shield case, and is screwed and fixed via a compression spring 18 into a screw hole 17 drilled in the center of the lower end of the side piece of the shield case divided body 2a. The short piece is hooked to the oblique side portion formed at the lower end corner of the shield case divided body 2a, and supported so that the presser metal fitting 15 is oriented diagonally with respect to the vertical line. The angle of this diagonal direction is approximately 15 mm with respect to the upper surface of the protruding base 1a of the cover 1.
It is set to be between 75 degrees and 75 degrees.

That is, the coaxial cable that is fitted into the U-shaped piece 15b and pressed against the side surface of the shield case divided body 2a is fixed at an angle of about 15 degrees to 75 degrees. The tip of the Z-shaped piece 15c is inserted into and engaged with a hole 19 bored in the side surface of the shield case divided body 2a from the front side.

Reference numeral 20 denotes a terminal fitting 21 for connecting the signal line of the coaxial cable, which is placed at the front in the direction in which the coaxial cable is fixed.
This terminal block 20 is a terminal block for attaching a
) to (d), an insertion hole 22 for the signal line of the coaxial cable is drilled on one side, and engaging claw pieces 23 are provided on both sides of the bottom surface.
23 protrudingly provided, and a recess 25 and a hole 27 for inserting a terminal plate 26 are provided in the center, and a square hole 28 is provided in the side piece of the shield case split body 2a. The engaging claw pieces 23, 23 are press-fitted from the front side, and the engaging claw pieces 23, 23 are engaged with the opening edge of the square hole 28 as shown in FIG. fixed to the surface. The terminal plate 26 constitutes the terminal fitting 21 together with the contact spring 24, and as shown in FIGS. 6(a) to 6(d), a base piece 26a,
It consists of an extending piece 26b extending obliquely to the side from one end side of this base piece 26a, and a portal-shaped piece 26c extending horizontally from the tip of the base piece 26a, and the upper end of the base piece 26a is It is inserted into the terminal block 20 through the insertion hole 27 and fixed. Sho 2
Reference numeral 9 denotes a hole into which the signal line of the coaxial cable inserted through the insertion hole 22 is inserted. The contact spring 24 is shown in FIG. 7(a),
As shown in (b), the tip of the contact spring 24 is bent into an inverted U-shape, and the crimping holes 32, 3 are formed in the contact spring 24.
2, dovetails 31, 3 protruding from the base piece 26a of the terminal plate 26
1 and is fixed to the base piece 26a of the terminal plate 26 by caulking these dowels 31, 31. The tip of the contact spring 24 is connected to the terminal block 2 as shown in FIG.
Gate-shaped piece 26c of the terminal board 26 placed in the recess 25 of 0
It is placed inside and comes into elastic contact with the ceiling surface of the gate-shaped piece 26c. In the figure, 33 is a terminal block 20 on which the covering part covering the signal wire is placed.
It is a concave part.

In the figure, reference numeral 34 denotes a printed circuit board, and both ends of the printed circuit board 34 are placed on cut-and-raised pieces 35 cut and raised on both sides of the center of the back side of both sides of the shield case divided body 2a. It is supported by the divided body 2a, and is electrically connected to the terminal fitting 21 by inserting the tip of the extending piece 26b of the terminal plate 26 into the mounting hole 36 from above and soldering it to the signal circuit pattern on the back side. do. In addition, the signal connection pin on the plug side is inserted into the mounting hole 37 provided in the center, and the lower end of the outlet fitting 38 that has passed through the cylindrical protrusion 13 is inserted through it and soldered to the signal circuit pattern on the back side. In addition to the electrical connection, the receiving blade metal fitting 38 is also mechanically fixed.

The ground circuit of the printed circuit board 34 can be electrically connected to the cylindrical electrode body 7 via the shield case divided body 2a, for example, by soldering the cut and raised pieces 35. In the figure, 2b is a shield case divided body which forms the shield case 2 by combining with the shield case divided body 2a.This shield case divided body 2b is open on both sides and the upper end surface, The lower end surface and both end surfaces of the shield case divided body 2a are combined and combined from below to form the shield case 2.

In the figure, numerals 39, 39... are engagement protrusions provided on both ends of both side pieces of the shield case divided body 2a. The shield case divided bodies 2a and 2b are engaged by engaging with notches 40, 40, . . . provided on both side edges of both end pieces of the case divided body 2b, respectively. In addition, 41, 41... in the figure are the holding pieces of the shield case divided body 2b, and these holding pieces 41, 41...
, 41... have their tips pressed against the outer surfaces of both sides of the shield case divided body 2a, and the shield case divided body 2a in both directions
, 2b from wobbling.

As shown in FIG. 8, the TV connector A of the present invention constructed as described above has the protruding base 1 of the cover 1 in the opening of the mounting frame 42 that is attached to the serial switch box.
a from below, insert the locking protrusions 43, 43... provided on both sides of the cover 1 through the gaps provided on both side frames of the mounting frame 42, lock them to the mounting frame 42, and attach them to the mounting frame 42. It is. In this case, since the width dimension W in both end directions of the cover 1 and the shield case 2 is formed to exactly the size of one module, a plurality of wiring devices, for example, another TV connector A of the present invention, and an AC outlet B can be connected. They can be installed consecutively.

In the figure, reference numeral 44 denotes an insulating separator, and this insulating separator 44 may be provided detachably or integrally with the mounting frame 42, or may be provided integrally with the cover 1 of the TV connector A, etc. Further, 46 is a decorative plate, and 47 is an embedded hole drilled into the wall. Now, when using the TV connector of the present invention, it is first necessary to connect the signal line of the coaxial cable 45 that has been wired, but when fixing the coaxial cable 45, use the tightening screw 16 of the holding fitting 15. is loosened, and the presser metal fitting 15 is expanded with respect to the shield case divided body 2a.

That is, when the tightening screw 16 is loosened as shown in FIG. 10, the presser metal fitting 15 is held with the tip of the Z-shaped piece 15c in contact with the back side of the side piece of the shield case divided body 2a.
The U-shaped piece 15b is rotated about this contact point as a fulcrum by the elastic force of the compression spring 18, and the U-shaped piece 15b is lifted. In this state, the shield covering part of the coaxial cable 45 is attached to the U-shaped piece 15.
When the tightening screw 16 is inserted through the corresponding part of b and tightened, the presser metal fitting 15 supports the compression spring 1 with the above-mentioned contact point as a fulcrum.
The coaxial cable rotates against the elastic force of 8, and the U-shaped piece 1
5b and the side surface of the shield case divided body 2a. The signal line of the coaxial cable 45 is connected to the contact spring 24 of the terminal fitting 21 and the gate-shaped piece 26c of the terminal plate 26.
If the contact spring 24 is press-fitted between the contact spring 24 and the ceiling surface, the terminal fitting 21 will be connected and held by the resilient force of the contact spring 24.

FIG. 9 shows a state in which a wiring device B and two TV connectors A are installed in series on the mounting frame 42. As can be seen from this figure, the coaxial cable 45 is wired diagonally. Adjacent wiring fixture B or TV connector A
The coaxial cable 45 does not get in the way of the wiring, and there is no need to forcibly bend the coaxial cable 45.

[0019]

Effects of the Invention The present invention provides a terminal block made of an insulating material and equipped with a terminal fitting for connecting the signal line of the coaxial cable, on the side of the shield case, and one end of the holding fitting for holding down the exposed shield coating of the coaxial cable. is rotatably locked on the side of the shield case, and the other end is attached to the side of the shield case with a tightening screw so that it can expand freely, so all you have to do is loosen or tighten the tightening screw on the other end of the holding bracket. Since the shield covering part of the coaxial cable can be pressed against the shield case, the workability is improved compared to the conventional method which requires loosening and tightening two screws.

[Brief explanation of drawings]

FIG. 1 is an exploded perspective view of an embodiment of the present invention.

FIG. 2 is an enlarged side view of one embodiment of the invention.

FIG. 3(a) is a front view of a presser fitting used in an embodiment of the present invention. (b) is a side view of a presser fitting used in one embodiment of the present invention. (c) is a top view of a presser fitting used in one embodiment of the present invention.

FIG. 4(a) is a right side view of a terminal block used in one embodiment of the present invention. (b) is a top view of a terminal block used in one embodiment of the present invention. (c) is a left side view of a terminal block used in one embodiment of the present invention. (d) is a side sectional view of a terminal block used in one embodiment of the present invention.

FIG. 5 is a sectional view of a main part of a terminal block used in an embodiment of the present invention.

FIG. 6(a) is a rear view of a terminal board used in one embodiment of the present invention. (b) is a side view of a terminal board used in one embodiment of the present invention. (c) is a bottom view of a terminal board used in one embodiment of the present invention. (d) is a partially omitted front view of a terminal board used in one embodiment of the present invention.

FIG. 7(a) is a front view of a contact spring used in one embodiment of the present invention. (b) is a side view of a contact spring used in one embodiment of the present invention.

FIG. 8 is an exploded perspective view showing the usage state of one embodiment of the present invention.

FIG. 9 is a sectional view showing a state in which an embodiment of the present invention is used.

FIG. 10 is an explanatory diagram of the use of a presser fitting used in an embodiment of the present invention.

FIG. 11 is an exploded perspective view of a conventional example.

[Explanation of symbols]

1 Cover 1a Protruding stand 2 Shield case 7 Cylindrical electrode body 15 Presser metal fittings 16 Tightening screw 20 Terminal block 21　Terminal fittings 38 Blade receiving metal fittings

Claims (1)

[Claims] Claim 1: A substantially rectangular parallelepiped-shaped shield case and a protruding base having an outlet portion in which a receiving blade fitting and a cylindrical electrode body are arranged concentrically around the receiving blade fitting in the center of the upper surface are integrally formed. In a TV connector consisting of a cover whose bottom part is placed on the top surface of the shield case, a terminal block made of insulating material and equipped with a terminal fitting for connecting the signal line of the coaxial cable is installed on the side of the shield case, and A TV connector characterized in that one end of a holding fitting for holding down an exposed shield covering part is rotatably locked on the side surface of the shield case, and the other end is attached to the side surface of the shield case with a tightening screw so as to be freely expandable.