JPH04225604A - Fitting structure for after-fitting plane antenna for automobile - Google Patents

Abstract

PURPOSE:To offer fitting structure for an after-fitting plane antenna for an automobile which is easy to fit, and in addition, free from the fear of theft or disengagement, etc., in the course of traveling. CONSTITUTION:A fitting part 5' is formed by extending a part of a base plate 5 and bending it into the form of U, and a car body end part 3 is put into said fitting part 5', and the above-mentioned fitting part 5' is fixed to the car body by fastening it by a screw 6 from the rear surface of the car body end part 3.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structure for attaching an antenna to the outside of a vehicle body after manufacturing the vehicle.

0002

[Prior Art] Conventional flat plate antennas for automobiles include:
For example, there is one shown in FIG. This is from Tokyo Institute of Technology, Institute of Electronics, Information and Communication Engineers, 1987, VOL No. 53 and 8.
This was announced in the 8th Spring National Conference VOL No. 57. In FIG. 3, 11 is a conductive ground plane, 12 is a flat patch that is an antenna element, 13 is a feed shaft that feeds power to the patch 12, and 14 is a short pin for electrically connecting the ground plane 11 and the patch 12.

An example of a mounting structure for using the above-mentioned flat plate antenna as an aftermarket antenna for an automobile is shown in FIG. In FIG. 4, 1 is a double-sided adhesive tape for installation, 2 is a retrofitted antenna whose antenna body is covered with an antenna case (a cover made of resin or the like that transmits radio waves), and 3 is a trunk lid. As shown in FIG. 4, conventionally, a double-sided adhesive tape 1 was attached to the bottom surface of the retrofitted antenna 2, and the tape was used to attach it to the surface of a trunk lid 3, roof panel, etc.

0004

[Problems to be Solved by the Invention] However, in the conventional retrofit planar antenna mounting structure as described above, since the antenna is simply adhered with double-sided adhesive tape or the like,
Since it can be removed relatively easily, there is a problem that there is a fear that it may be stolen or removed while the vehicle is running.

The present invention has been made in order to solve the problems of the conventional technology as described above, and provides a retrofitted flat plate antenna for automobiles that is easy to install and is free from the fear of theft or detachment while the vehicle is running. The purpose is to provide a mounting structure for.

[0006]

[Means for Solving the Problems] In order to achieve the above object, the present invention is constructed as described in the claims. That is, in the present invention, a part of the base plate constituting the antenna main body is extended and bent into a U-shape to provide an attachment part, and the end of the vehicle body (for example, the end of the trunk lid) is sandwiched between the attachment part. The mounting portion is configured to be fixed to the vehicle body by tightening it with a screw from the back side of the end portion of the vehicle body. Further, the above structure and a conventional double-sided adhesive tape can also be used together.

[0007]

[Operation] As mentioned above, in the present invention, since the screws are tightened from the end of the vehicle body, for example, from the back side of the trunk lid, the screws cannot be turned when the trunk lid is closed, so there is no fear of theft. . In addition, since it is tightened with screws, it can be securely fixed, so there is no fear of it coming off while driving, and since it is screwed, it is easy to attach and detach.

[0008]

[Embodiment of the Invention] FIG. 1 is a diagram showing an embodiment of the present invention.
(a) is a perspective view of the antenna main body, (b) is a perspective view of the antenna body covered with the antenna case, and (c) is a side view of the antenna body attached to the trunk lid.

In FIG. 1, 4 is a flat patch, 5 is a main plate, 5' is an attachment part made by extending a part of the main plate and bent into a U-shape, and 6 is a trunk lid 3 sandwiched between 5'. The screw to be tightened, 8, is the antenna case. In addition, Fig. 1(c)
, a case is shown in which the mounting part 5' is provided only at one end of the antenna, and the other end is fixed using double-sided adhesive tape 1, but it is also possible to provide multiple mounting parts. good.

Next, the operation will be explained. As shown in FIG. 1(c), the antenna is attached to the trunk lid 3 by sandwiching the trunk lid 3 between the mounting parts 5' which are formed by extending a part of the base plate 5 and bending them into a U-shape, and tightening them with screws 6. It is securely fixed and prevents the antenna from falling. Furthermore, since the screws 6 are tightened from the back side of the trunk lid 3, the screws 6 cannot be turned when the trunk lid 3 is closed, so there is no fear of theft. Also, since it is screwed on, it is easy to attach and detach. Furthermore, the number of parts is the same as the conventional one, and the structure is simple, so there is no increase in man-hours or costs.

Next, FIG. 2 shows another embodiment of the present invention, in which (a) shows an overall sectional view, and (b) shows a partially enlarged perspective view. In this embodiment, a mounting portion 5'' is provided that is bent downward immediately from the end of the base plate 5, and this mounting portion 5'' is prevented from protruding horizontally from the antenna case 8, and the mounting portion 5'' and trunk The structure is such that the power supply cable 7 is passed through the gap between the lid 3 and the lid 3. With this structure, the mounting part 5" and the power supply cable 7 can be connected to the outside as shown in FIG. 2(a). Since the cable 7 is hardly exposed, the design is not spoiled and deterioration of the power supply cable 7 can be prevented. Further, by simply attaching the antenna to the trunk lid 3, the power supply cable 7 can be routed smoothly to the trunk room. Further, FIG. 2(b) is an enlarged perspective view of the attachment portion 5''. As shown, a notch 9 is provided at the tip of the attachment portion 5'', and the power supply cable 7 is passed through this notch 9.

0012

[Effects of the Invention] As explained above, in the present invention, the end portion of the main plate is bent to provide a mounting portion, and the end portion of the vehicle body is sandwiched between the mounting portions and fixed by tightening with screws or the like. This eliminates the fear of the antenna being stolen or detached while the vehicle is in motion, and it is also easy to attach and detach, making it possible to achieve the same man-hours and costs as before.

[Brief explanation of the drawing]

FIG. 1 is a perspective view and a side view of an embodiment of the present invention.

FIG. 2 is a cross-sectional view and a partially enlarged perspective view of another embodiment of the present invention.

FIG. 3 is a perspective view of an example of a conventional flat antenna.

FIG. 4 is a perspective view showing a state in which a conventional retrofitted flat plate antenna for automobiles is installed.

[Explanation of symbols]

1...Double-sided adhesive tape 2...Flat antenna 3...Trunk lid 4...Patch 5...Main plate 5’, 5”…Mounting part 6...Tightening screw 7...Power cable 8...Antenna case 9...notch

Claims (1)

[Claims] Claim 1: A flat patch that is an antenna element, a ground plate that is a ground plate arranged parallel to the patch, a power feeding shaft that feeds power to the patch, and a short pin that connects the patch and the ground plate. A flat plate antenna equipped with
In a retrofitted flat plate antenna for an automobile covered with a radio wave transparent cover, a part of the base plate is extended and bent into a U-shape to provide a mounting part, the end of the vehicle body is sandwiched between the mounting part, and the mounting part is A mounting structure for a retrofitted flat plate antenna for a car, characterized in that it is fixed to the car body by tightening screws from the back side of the end of the car body.