JPS5961306A - Method for storing on-vehicle antenna - Google Patents

Abstract

PURPOSE:To store a reflector of a parabola antenna within the limit of the height and width of a car by folding the reflector into a half size. CONSTITUTION:A lower half 11 of the parabola reflector is fixed to a car 6 through an antenna driving section and a mounting section 15 at storage and an upper half 12 of the parabolar reflector is turned around a rotary center shaft 13 and folded so that the half 12 is overlapped at their apertures. The upper half 12 is turned around a rotary center shaft 13 and the reflector is expanded at expansion. Since the lower half 11 of the reflector is fixed by taking the direction horizontally in this case, the folded reflector at storage is stored within the limit of the height and width of the car. Since the upper half 12 of the reflector 12 is turned around the rorary center shaft 13 and the halves are overlapped at their apertures, the storage and expansion are attained easily and surely without removing a part of the antenna.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for folding and storing a parabolic antenna loaded on a vehicle within the limitations of the vehicle shed and vehicle width.

The width and height of vehicle-mounted parabolic antennas that move while loaded on a vehicle are restricted by the t''1 Vehicle Restriction Ordinance. Conventionally, for antennas with an aperture diameter that exceeds the limited width, the method of removing the excess portion, transferring it, and attaching it when necessary, or the method shown in Figure 1 (al.
, as shown in (b), the horn 4 of the reflector 7 of the antenna
A method has been used in which the JJJ cars 6 are loaded facing toward the zenith, and the excess portions 8 on the sides are rotated around the rotating shaft 3 to be folded within the vehicle limit. In addition, Fig. 1(a)
, (b), 5 is a mount part. However, the former method of removing the excess portion has disadvantages in that it requires labor and time to disassemble and assemble.Secondly, a storage space must be secured for the portion that could not be removed. Maf?
-Figure 1(a).

The latter method shown in (b), in which the antenna is directed toward the zenith and the excess portion 8 is folded, is used when the communication direction is close to the horizontal direction.
After the antenna is assembled, a mechanism for rotating the antenna by nearly 90 degrees is required to orient it in the communication direction, and it also takes time.

The present invention has been made based on the above considerations, and therefore, the purpose of the present invention is to solve the above-mentioned drawbacks, to be able to accommodate the vehicle within the width and height limits, and to be easily assembled. Another object of the present invention is to provide a method for storing a vehicle-mounted parabolic antenna in which the antenna faces in the horizontal direction and is in the yc state when assembled.

The above-mentioned object of the present invention is to provide a load-mounted parabolic antenna that can be moved while loaded on a vehicle, with the antenna oriented horizontally in the lateral direction of the vehicle, and the reflector divided into two symmetrically above and below.
The upper half of the reflector is rotated and folded within the vehicle height and width limits by rotation center shafts located at both ends of the dividing plane and around which the entire upper half of the reflector can be rotated. This is achieved by

Next, a preferred embodiment of the present invention will be described in FIG. 2 (a).
A detailed description will be given with reference to FIGS. 1, (b) and FIGS.

Figure 2 (al, (Figures 111 and 283 (a),
(bl is a side view and a rear view for explaining one embodiment of the present invention, respectively. In these figures, reference numeral 11 is the lower half (fixed part) of the parabolic reflector, 12
13 is the upper half of the parabolic reflector (folding part), 13 is a rotation center axis located at both ends of the dividing plane, 4 is a horn, and 15 is an antenna drive part and a mount part.

Moreover, FIG. 2 shows a side view and a rear view of the storage state, and FIG. 3 shows a side view and a rear view of the unfolded state. As shown in these figures, the parabolic reflector is vertically symmetrically divided into two parts so that the reflecting surface faces in the horizontal direction. The lower half (fixed part) 11 is fixed to the vehicle 6 through the antenna drive part and the mount part 15. The upper half (folding portion) 12 rotates around the rotation center axis ] 3 while rotating as shown in FIG. 2 (al.
, As shown in (b), each half-day 11.12 is stored facing each other within the vehicle height and width limits. When deploying the antenna, rotate the lower half of the reflector (folded part) 12 to the rotation center axis 13.
Rotate it in the opposite direction (in the direction of the arrow in Fig. 3(b)) by
Set the state as shown in Figure 3. This causes the reflective surface to face laterally.

As described above, according to the present invention, it is possible to easily and accurately store the antenna within the vehicle height and vehicle width limits without partially dislodging the antenna.

After deployment, the antenna faces in the horizontal direction (lateral direction), so if the communication direction is close to the horizontal direction, the driving range of the antenna may be small.

Although the present invention has been described above in principle with respect to its preferred embodiments, this is merely an illustrative example, and the present invention is not limited only by the embodiments described herein, and is not limited to its scope. It goes without saying that various modifications and changes may be made without departing from the scope of the invention.

4121 simple if, i? , Disciple 1 (al, (bl) is 1 for explaining the conventional storage method! A schematic plan view and a direct rear view, Fig. 2 (a).

(BL is a schematic side view and t-near view, 1++h rear view, and FIG. 3 to clarify the storage state according to the present invention.
al. (b) is a schematic side view and a schematic rear view for explaining the unfolded state according to the present invention.

4... Horn, 6... Vehicle, Jl... Lower half of parabolic reflector, 12... Upper half of parabolic reflector (folding part),
13... Center of rotation +111 h 15... Antenna drive section and mount section.

Agent Patent Attorney Toshikichi Somekawa 26 1st mouth 1 (Q) 11th. 'l　(b) Figure 2(a) ’;,)’, 312jl (G) Section 30(b)

Claims (1)

[Claims] In a method of storing a vehicle-mounted parabolic antenna that moves while loaded on a vehicle, the reflector is divided into two parts at the center (41) that are vertically symmetrical, and the rotation is performed so that the reflector is positioned on both sides of the divided planes. An Fh storage method for a vehicle-mounted parabolic antenna characterized by rotating the upper half of the reflector around a central axis and folding it within vehicle height and vehicle width limits.