JPH0119451Y2 - - Google Patents

Description

[Detailed Description of the Invention] This invention relates to an improvement in the structure of an indoor antenna device mounted on a television receiver or the like.

Conventionally, this type of antenna device was developed in the 1970s.
- It has a structure as seen in Publication No. 10140, and in this case, when assembling the feeder wire for transmitting high frequency signals from the antenna device to the television receiver, the opening of the antenna holder must be opened from the outside. Assembly is not easy, as it is necessary to electrically connect the antenna tablet and the feeder wire by soldering after inserting the end of the feeder wire, and the antenna device is not suitable for broadcasting. As a result of being constantly rotated in accordance with the direction of the station, the feeder line is pulled, pushed and twisted, resulting in damage to the electrically connected parts, especially due to pulling. There was a fear that the stress would be concentrated and it would be easy to break.

The present invention was devised to eliminate the above-mentioned drawbacks, and the embodiments of the present invention will be explained below with reference to FIGS. 1 to 5. This antenna device is made of an electrically insulating material. The antenna holder 1 is provided with an antenna holder 1. This holding body 1 has an antenna element 2 whose tip part is extendable and retractable on its left and right parts,
It has a pair of antenna holding grooves 3, 3 for rotatably supporting the other end of the antenna 2, and has a recess 4 in the center thereof for introducing the feeder wire, which communicates with the holding grooves 3, 3. A notch 5 formed in a rectangular shape is provided in one side wall forming the recess 4 . This antenna device also includes a cap member 7 attached to the holder 1. The cap member 7 having the stopper 20 which is a slight protrusion is formed so that it can fit securely over the stopper 19 which is a slight protrusion while producing some friction in the recess 4. a cover body 9 having an engaging convex portion 8;
A closing portion 10 of the notch 5 is formed on one side of the notch 5 so as to fit appropriately into the notch 5. In this case, the bottom of the closing part 10 is configured to form a gap 6 between the bottom of the notch 5 and the parallel two-wire feeder wire 12 is inserted (see FIG. 1). In the feeder wire 12 used in this antenna device, a through hole 13 that engages with the protrusion 11 is formed in the insulating part between the wires, and while it is at the bottom of the notch 5, the center of the feeder wire 12 is cut vertically through the notch 5. A protrusion 11 having a circular inner surface is provided at the rear to be inserted through a circular through hole 13. 14, 14 are terminal fittings arranged in the holding grooves 3, 3, respectively;
There are protrusions 18 around the holes 17 provided in each of the U-shaped opposing pieces so as to face each other, and the shape thereof may be, for example, a ring shape as shown in the figure, a large number of protrusions, or radial protrusions. It's okay. Note that if the protrusion 18 is arranged outside the head of the tightening screw 15, the terminal fitting will be attached together with the tightening screw with a spring effect, which will prevent the rotation of the antenna element over a long period of time. This makes it possible to hold it stably.

In assembling this antenna device, first connect the connection terminal 21 to the television receiver at one end.
After soldering the respective electric wires at the other ends of the feeder wire 12 with the terminal fittings 14, 14 to the terminal fittings 14, 14, and disposing the antenna elements 2, 2 in the holding grooves 3, 3 via the terminal fittings 14, 14. , the antenna element 2, using the tightening screw 15 and the nut 16 held in the antenna holder 1 by casting or fitting.
2 is rotatably attached to one side of the antenna holder 1. After this, the screw 15 on the nut 16 side is crushed with a punch or the like to prevent loosening of the tightening. Of course, adhesive or the like may be used to prevent loosening.

In this case, since the notch 5 has a large opening, the tip of the feeder wire 12 can be easily introduced into the recess 4 of the holder 1 without the troublesome work required in the conventional method. At this time, the protrusion 11 of the antenna holder 1 is inserted into the through hole 13 of the feeder wire 12 and positioned at the bottom of the notch 5. Then, by fitting the engaging protrusion 8 of the cover body 9 into the recess 4 and attaching the cap member 7 to the holder 1, the feeder wire 12 is placed in the bottom of the notch 5. The work is completed.

In this way, the feeder wire 12 is completely prevented from coming off when the cap member 7 is attached.

Reference numeral 22 denotes a hanging leg that is integrally molded with the antenna holder 1, and has a slit 23 that crosses the center thereof, and its tip is bent.

Reference numeral 24 designates the upper surface of a housing of a television receiver, etc., and a conical recess 25 is provided in a part thereof to receive the hanging leg 22, and the antenna holder 1 is rotated by the elastic force of the hanging leg end. It is possible to control friction. Further, reference numeral 26 denotes a blocking protrusion that works together with a rotation regulating protrusion (not shown) provided in the recess 25 to prevent rotation within one rotation.

Thereafter, the connection terminal 21 of the feeder line 12 is connected to an antenna input connection terminal of a television or the like.

As is clear from the above description of the embodiments, according to the present invention, when assembling the antenna device,
The feeder wire 12 electrically connected to the terminal fitting 14 in advance can be easily introduced into the antenna holder 1, and the through hole 1 of the feeder wire 12 can be easily introduced into the antenna holder 1.
3 can be easily temporarily engaged with the protrusion 11 of the antenna body, thereby improving assembly work and improving mass production.

Furthermore, as the cap member 7 is attached, the feeder wire is completely prevented from coming off.
This has the effect that, in cooperation with the protrusion 11, stress transmitted from the feeder wire, especially due to tension, can be reliably eliminated.

In addition, the combination of the circular inner protrusion and the circular through hole can increase the retaining force.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention; FIG. 1 is a partially omitted and partially sectional front view of the antenna device of the present invention; FIG. 2 is a partially omitted side view of the antenna device of the present invention; and FIG. FIG. 4 is a side view of the cap member, FIG. 5 is a front view, and FIG. 6 is a top view showing the main parts of the antenna holder. FIG. In the figure, 1 is an antenna holder, 2 is an antenna element, 3 is a holding groove, 4 is a recess for introducing a feeder wire,
5 is a notch, 6 is a gap, 7 is a cap member, 8 is an engaging convex portion, 9 is a cover body, 10 is a closing portion, 11
12 is a parallel two-wire feeder wire, 13 is a through hole, 14 is a terminal fitting, 15 is a tightening screw, 16 is a nut, 17 is a hole, and 19 and 20 are stoppers.

Claims (1)

[Scope of Claim for Utility Model Registration] (1) A pair of antenna holding grooves are provided on both the left and right sides, in which the antenna element is rotatably attached together with a terminal fitting connected to the feeder line, and the central part is provided with a pair of antenna holding grooves, and the central part is provided with a pair of antenna holding grooves to which the antenna element is rotatably attached together with a terminal fitting connected to the feeder wire. An antenna device including an antenna holder having a recess for introducing a feeder wire communicating with a groove, and a cap member attached to the antenna holder so as to cover the recess, the antenna holder forming the recess. The cap member has a notch in the center of the side wall thereof, and the cap member has a closing portion that fits into the notch, and a parallel two-wire feeder is provided between the bottom of the closing portion and the bottom of the notch. 1. An antenna device characterized in that a gap is formed through which a wire can be inserted, and a protrusion through which a through hole provided in an insulating part between the lines of the feeder wire is inserted is formed so as to vertically cut through the gap. (2) The antenna device according to claim 1 of the utility model registration, characterized in that the protrusion is integrally molded with the antenna holder. (3) The antenna device according to claim 1 or 2, wherein the projection is circular on the inside, and the through hole is shaped to be inserted through the projection.