JPH036011Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to an antenna element fixture for attaching an indoor antenna element to an antenna body.

[Prior art]

In this type of antenna element, as shown in FIG. 7, the feeding part 53 of the antenna element 52 inserted into the main body 51 is formed into a ring shape, and the feeding part 53 and the round lug 55 of the feeding line 54 are connected to each other. Inserted screw 5
6, it was attached to the cylindrical portion 57 inside the main body portion 51.

[Problem that the invention attempts to solve]

However, with the above-mentioned installation, it is not possible to freely change the amount of protrusion of the antenna element from the main body 51, except for antennas such as rod antennas that can expand and contract by themselves. Moreover, the storage case for an indoor antenna equipped with such an antenna element is long and bulky, making it unsuitable for storage and transportation. Therefore, if the antenna element and the main body are housed in separate cases, the antenna elements will have to be attached to the main body 51 one by one along with the feeder line 54 during assembly, which has the disadvantage of requiring time and effort to attach. .

The present invention was developed in view of the above points, and has a compact structure suitable for mass production, which allows the amount of antenna element protrusion from the main body to be freely changed, and also allows two antenna elements to be fixed at the same time. It is an object of the present invention to provide an antenna element fixing device that does not require a contact plate.

[Means for solving problems]

The first configuration of the present invention to achieve this purpose is
To explain FIGS. 4 to 4, two element guide grooves 4, 4, 4', 4' are arranged in parallel on one side of the plate bodies 3, 3', and the element guide grooves 4, 4, 4', 4' Projections 6, 6, 6', 6' and holes 7, 7, 7', 7' into which the projections are fitted are provided on both sides of the groove at both ends of the element guide groove 4,
4, 4', 4' with respect to the symmetry axes 20, 20', one of them is a protrusion and the other is a hole, and the synthetic resin clamping pieces 2, 2' are arranged so that the protrusion and the hole fit together. Then, the antenna element fixing tool 1 with the mounting screw 11 inserted through the center thereof is attached to the main body part 9 with the mounting screw 11.

[Function] According to the present invention, when both the clamping pieces 2, 2' are fitted with the protrusions and holes, the element guide grooves 4, 4' and 4,
4' forms element guide holes 8,8. The antenna element fixture 1 provided with the element guide holes 8, 8 is temporarily attached to, for example, the head 13 of the main body part 9 with the mounting screws 11, and the antenna elements 17, 17 are attached to the main body part 9.
After inserting the antenna element into the element guide holes 8, 8 through the two holes 15, 15 and adjusting the amount of protrusion of the antenna element from the main body part 9, tighten the mounting screw 11 to fix the antenna element fixture 1 to the main body part 9. Therefore, the two antenna elements 16 are simultaneously attached to the antenna element fixture 1.
Fixed. Since the feed line connects directly to the fixed antenna element, no contact plate is required.

〔Example〕

Embodiments of the present invention will be described based on the drawings. 1st
4 to 4, the antenna element fixing tool 1 is formed by combining synthetic resin clamping pieces 2 and 2' of the same shape and size, and inserting a screw 11 into the clamping pieces 2 and 2'.

As shown in FIG. 2, the holding pieces 2 and 2' have two element guide grooves 4 and 4 on one side of a rectangular plate body 3 and 3'.
4', 4' are arranged in parallel, and element guide grooves 4, 4, 4',
A recess 5, 5, 5', 5' is provided in the middle of the antenna element guide groove 4, 4, 4'. On both sides of 4' there are protrusions 6, 6,
6', 6' and the protrusions 6, 6', holes 7, 7, 7', 7' into which the protrusions 6, 6', 6, 6 are inserted are connected to the element guide grooves 4, 4, 4'.
With respect to the symmetry axes 20, 20' of 4', one side is a protrusion and the other side is a hole. Therefore, as shown in FIG.
The protrusions 6, 6 of the clamping pieces are placed in the holes 7', 7' of the clamping piece 2', and the holes 7, 7 of the clamping piece 2 are placed in the holes 7', 7' of the clamping piece 2'.
When it is fitted into the protrusions 6', 6', the antenna element fixture 1 is assembled as shown in FIG. 4, and two element guide holes 8 formed by the element guide grooves 4, 4' are formed. .

Next, a procedure for attaching the antenna element to the antenna main body using the antenna element fixture will be explained. The antenna element fixing tool 1 includes, for example, 2 parts as shown in FIG.
The four positioning protrusions 10 in the divided main body part 9 are positioned at the corner parts, the protrusions 21 are located in the groove parts 22, and they are temporarily attached to the cylindrical part 12 of the main body part 9 with screws 11.

In this embodiment, the head 1 of the robot-shaped main body 9 is
Temporarily attach the antenna element fixing tool 1 for the UHF element to the back part 14, and the antenna element fixing tool 1' for the VHF element to the back part 14. Through holes 15, 15, 15', 1 formed in the main body part 9 directly above 8', respectively.
Insert the antenna elements 16, 16, 17, 17 into the element guide holes 8, 8, 8', 8' from 5' to the main body 9.
Adjust the amount of antenna element protrusion from the antenna element. When this adjustment is completed, tighten the screws 11, 11' and attach the antenna elements 16, 16, 17, 17 to the fixture 1.
Fixed at 1'. At this time, the fixing devices 1 and 1' are also attached to the main body 9.
Fixed. The fixed antenna element is soldered to the feeder line and the two halves are connected with screws to obtain a robot-shaped indoor antenna as shown in FIG.

When storing this indoor antenna in a case,
Since the antenna element can be inserted into the main body until it bottoms out, the length of the case can be shortened. Since the antenna element inserted into the antenna element fixture 1 and the feeder line can be directly connected, a contact plate is not required.

In addition, when fixing the antenna element fixing tool 1 to the bottom of the main body part 9, the element bent part 19 is inserted into the horizontal hole 18 formed at the lower part of the element guide groove 4 of the clamping tool 2, as shown in FIG. and connect the feed line to that end.

[Effect of idea]

As is clear from the above explanation, according to the present invention, the two clamping pieces of the antenna element fixing device can be molded with one mold, so the mold cost can be reduced, and
Suitable for mass production. In addition, the antenna element fixing tool has a compact structure that combines two clamping pieces, so it can be applied to antenna bodies of various shapes, and the amount of protrusion of the antenna element from the antenna body can be freely adjusted. Since two antenna elements can be fixed to the antenna element fixing tool at the same time, the antenna element mounting work is simplified. Furthermore, since the fixed antenna element is directly connected to the feed line, no contact plate is required.

[Brief explanation of the drawing]

1 and 3 are longitudinal sectional views of an embodiment of the present invention, FIG. 2 is a front view of a pair of clamping pieces, and FIG.
The figure is a longitudinal cross-sectional view of the element guide hole of the antenna element fixing device, and Figure 5 is an explanatory diagram of how to assemble the indoor antenna.
FIG. 6 is a side view of an indoor antenna incorporating the present product, and FIG. 7 is a perspective view showing an example of a conventional antenna element mounting method. 1, 1'... Antenna element fixing tool, 2, 2'...
Holding tool, 3, 3'... Plate body, 4, 4'... Element guide groove, 6, 6'... Protrusion, 7, 7'... Hole, 8,
8'...Element guide hole, 9...Main body, 11...Mounting screw (screw), 16, 17...Antenna element,
20, 20'...Axis of symmetry.

Claims (1)

[Scope of utility model registration request] Two element guide grooves are arranged side by side on one side of the plate, and a protrusion and a hole into which the protrusion is inserted are provided on both sides of each element guide groove on both sides, and one side is aligned with the axis of symmetry of both element guide grooves. An antenna element fixing device in which both clamping pieces of synthetic resin are arranged so that the other side of the protrusion is a hole, and the protrusion and the hole are fitted together, and the antenna element is attached to the main body with a mounting screw inserted through the center.