JP4177376B2 - Portable antenna device - Google Patents

Description

  The present invention relates to a portable antenna device used in a satellite communication ground mobile station or the like, and more particularly to a portable antenna device suitable for carrying by a person for disaster prevention.

  Conventionally, an antenna device used in a ground mobile station is required to be easily disassembled and assembled, small in size, and easy to move. For this reason, the antenna device is configured to be disassembled into a reflecting mirror unit, a power feeding unit, a transmitter unit, and an elevation angle and azimuth adjustment unit, and each disassembled unit is stored in a separate case. A portable antenna device has been proposed. (For example, refer to Patent Document 1).

JP-A-6-334425

  A portable antenna device in a conventional ground mobile station is configured as described above and is transported by being stored in a plurality of cases. However, in the event of a disaster, it cannot be transported by a vehicle and is carried by a person. There are many cases that must be done. In such a case, there is a problem that a situation that cannot be carried in a plurality of cases occurs.

  The present invention has been made to cope with the above-described problems, and it is possible to disassemble and assemble the antenna device and to store all the disassembled units in one case (trunk). An object is to provide a portable antenna device.

  A portable antenna device according to the present invention is detachably mounted on a trunk and is mounted on one surface of the rigid plate so as to form the bottom surface of the trunk, and an elevation angle and an azimuth angle can be adjusted. Reflector, a transmitter and a receiver integrated with a radiator disposed opposite to the reflector, and supports the transmitter, receiver and radiator, and the reflector side The reflector is configured to be bendable to the main body, the reflector includes a main portion including a mounting portion to the rigid plate, a tip portion detachably attached to the main portion, and the main portion and the tip portion. The main part including the stay and the side parts each have a length that can be accommodated in the trunk.

The portable antenna device according to the present invention is configured as described above, and uses a rigid plate that forms the bottom surface of the trunk as a support plate of the antenna device, and has a configuration in which the antenna reflector can be divided into four parts. Since the stay for supporting the device is configured to be foldable, the four-way reflecting mirror, radiator, and the like can be accommodated in the trunk space, and the entire antenna device can be accommodated in one trunk.
Accordingly, even when a situation occurs in which a person has to carry around in a disaster, the entire antenna device can be easily carried.

Embodiment 1 FIG.
Embodiment 1 of the present invention will be described below with reference to the drawings. 1 is an overall perspective view showing a schematic configuration of the first embodiment, FIG. 2 is a side view showing a configuration of a horizontal adjustment mechanism mounted on a trunk and a fixing portion of a reflecting mirror, and FIG. FIG. 4 is a schematic side view showing the configuration for supporting the reflecting mirror of the antenna, and FIG. 5 is a schematic diagram showing the configuration of the reflecting mirror of the antenna.

  As shown in these drawings, in the antenna device of the first embodiment, the rigid plate 2 forming the bottom surface of the trunk 1 is removed from the trunk 1, and the rigid plate 2 is turned over and attached to the bottom portion of the trunk 1 again. The antenna device is mounted on one surface 2A of the rigid plate 2 that has formed the inner surface of the trunk 1.

  Although the configuration of the rigid plate 2 is not shown, it is configured as a honeycomb board in which an aluminum honeycomb core is mounted between two aluminum plates, for example, and is detachably mounted on the bottom surface of the trunk 1 by a fastener 3.

  For example, as shown in FIG. 4, the detachable configuration is such that the metal plate 3 </ b> A having a U-shaped cross section is screwed to both end faces of the rigid plate 2 in such a manner that the bent portions of the metal fitting are located above and below. Is attached by a well-known fastener 3 having an engagement piece 3C that engages with an upward bent portion in the figure of the U-shaped metal fitting 3A and the other end is coupled to the trunk 1.

  As will be described later, when the antenna device is housed in the trunk 1, the rigid plate 2 is turned over in FIG. 4 so that the other surface 2B of the rigid plate 2 is the outer surface of the trunk 1. The rigid plate 2 and the trunk 1 are fixed to the trunk 1 in the same manner as in FIG. 4 with the U-shaped fitting 3A engaging the lower bent portion and one end of the locking piece 3C in FIG.

  A fixed disk 4 for fixing the reflector of the antenna is fixed to one surface 2A of the rigid plate 2, a ring-shaped Teflon (registered trademark) 5 is attached to the upper surface thereof, and a rotating plate 6 is further attached to the upper surface thereof. Is rotatably mounted. The rotating plate 6 is fixed to the rigid plate 2 by two fixing devices described below so as not to rotate at all times.

  The first fixing device 7 has a screw formed at the lower end, and this screw passes through a hole formed in the central portion of the rotating plate 6 and is screwed into a female screw formed in the central portion of the fixed disk 4. The rotating plate 6 is tightened to prevent rotation by tightening a screw.

  The second fixing device 8 includes a screw rod 8A that is screwed into the rigid plate 2 and a pressing portion 8B that protrudes from the screw rod and presses the surface of the rotary plate 6, and by screwing the screw rod 8A. The pressing portion 8B presses the surface of the rotating plate 6 to prevent rotation.

On the upper surface of the rotating plate 6, an antenna support plate 9 formed in a generally U shape is fixed by screws 9A.
On the other hand, a leveling mechanism 10 is detachably provided at three positions on the lower end of the trunk 1 in FIG. 2 in order to ensure the level of the rigid plate 2 when the trunk 1 is installed on the ground.

  In FIG. 3, the detailed structure of the leveling mechanism 10 indicated by the ring A is shown in FIG. 2, and the leveling mechanism 10 includes a board 10A that is in contact with the lower surface of the trunk 1 and an upper side from the board 10A. A side plate 10B that protrudes and is in contact with the side surface of the trunk 1, a lower end is formed as a grounding portion, a screw formed on the top is screwed into the board 10A, and the grounding portion is adjusted by adjusting the screw. A height adjusting rod 10C configured to adjust the height with respect to the substrate 10A and a side plate 10B of the substrate 10A provided on the side from which the side plate 10B protrudes, and for positioning inserted into a hole 10D formed in the trunk 1 And a fixing screw 10F that passes through the board 10A and is screwed into the female screw of the trunk 1, with the protrusion 10E inserted into the hole 10D when mounted on the trunk 1. Screw the Flip 10F into the internal thread of the trunk 1, during removal, return the screws 10F, it has a protrusion 10E to be able easily removed by pulling from the hole 10D.

  On the other hand, as shown in FIG. 4, the support plate 11 is supported by the antenna support plate 9 described above so as to be rotatable up and down by pins 11 </ b> A. A jack 12 is provided between the front end portion 11B of the support plate 11 and the antenna support plate 9, and the jack 12 expands and contracts by rotating the handle 12A so that the elevation angle of the support plate 11 can be controlled. .

One end of the jack 12 and the tip 11B of the support plate 11 are coupled by a pin 12B, and the other end of the jack 12 and the antenna support plate 9 are coupled by a pin 12C.
On the upper surface of the support plate 11, an antenna reflecting mirror 13 is fixed by support portions 13A and 13B.

  As shown in FIG. 5 (a), the reflecting mirror 13 can be divided into four parts to facilitate storage in the trunk 1, and the divided parts can be easily combined and assembled. Has been. That is, it is divided into four parts: a main part 13C which is a fixing part to the support plate 11, a tip part 13D coupled to the main part, and side parts 13E and 13F respectively coupled to both sides of the main part and the tip part. Has been.

  Further, protrusions 13G, 13H, and 13J are formed on the side end surface facing the tip portion 13D of the main portion 13C and the side end surfaces facing the side portions 13E and 13F, respectively, and the side end surface facing the main portion 13C of the tip portion 13D. A hole 13K that engages with the protrusion 13G is formed, and a hole 13M that engages with the protrusion 13H and a hole 13M that engages with the protrusion 13J are formed on the side end surfaces of the side portions 13E and 13F facing the main portion 13C. Are formed, and the projections are engaged with the opposing hole portions to join the four portions to form the reflecting mirror 13, and the projections are pulled out from the hole portions to be easily divided into four portions. It has a configuration that can.

  In addition, the place where the above-described protrusion and hole are provided is not limited to the side end face of each part, but as shown in FIG. , 13N may be provided, and the protrusion 13J and the hole 13M may be provided on the backing plate.

  On the other hand, a stay fixing portion 14 is provided on the reflecting mirror 13 side at the distal end portion 11 </ b> B of the support plate 11. As shown in FIG. 4, the height of the stay fixing portion is set to be approximately the same as or slightly higher than the upper end of the reflecting mirror 13, and the stay 15 is disposed thereon.

  The stay fixing portion 14 and the stay 15 are coupled by a hinge 16 provided on the reflecting mirror 13 side, and the stay 15 can be bent from the hinge portion to the reflecting mirror 13 side as indicated by an arrow and a one-dot chain line in FIG. Has been. Normally, the stay 15 and the stay fixing portion 14 are coupled by a fastener 17 provided on the side opposite to the hinge 16 so that the stay 15 is not bent.

The tip of the stay 15 has an inclined surface facing the reflecting mirror 13, and the transmitter 19, the receiver 20, and the radiator 21 shown in FIG. 1 are mounted on the inclined surface via a cushion 18.
The transmitter 19, the receiver 20, and the radiator 21 are integrally configured so that three devices can be attached to and removed from the stay 15 together.

  Since the first embodiment is configured as described above, in the case of acting as an antenna device, the configuration shown in FIG. 1 is installed on the ground, and the trunk 1 is used as an antenna support. Further, the three horizontal adjustment mechanisms 10 are adjusted to hold the rigid plate 2 horizontally, and the handle 12A of the jack 12 is operated to adjust the elevation angle of the reflecting mirror 13. To adjust the azimuth angle of the reflecting mirror 13, loosen the first fixing device 7 and loosen the second fixing device 8, and manually rotate the reflecting mirror 13 left and right in a state where the rotating plate 6 can rotate. Do.

Next, a procedure for housing the antenna device described above in the trunk 1 will be described.
First, as shown in FIG. 6, the integrated configuration of the transmitter 19, the receiver 20, and the radiator 21 is removed from the stay 15. Next, the tip portion 13D and both side portions 13E and 13F of the reflecting mirror 13 are each extracted from the main portion 13C and divided into four. The main part 13 </ b> C remains fixed to the support plate 11.

Thereafter, the stay 15 is removed from the fastener 17 and the stay 15 is bent from the hinge 16 toward the reflecting mirror 13 as indicated by an arrow in FIG.
Next, the pin 12B connecting the jack 12 and the tip end portion 11B of the support plate 11 is removed, and the tip end portion 11B of the support plate 11 is pushed down, and the state shown by the one-dot chain line in FIG.

In this state, the engagement piece 3C of the fastener 3 in FIG. 4 is removed from the U-shaped bracket 3A to release the coupling between them, and the rigid plate 2 is removed from the trunk 1 and placed at an appropriate location.
Here, the integrated configuration of the transmitter 19 and the like removed earlier is fixed around the rotating plate 6 of the rigid plate 2 with an adhesive tape (not shown) or the like.

  Next, the screw 10F of the horizontal adjustment mechanism 10 shown in FIG. 2 is loosened to remove the horizontal adjustment mechanism 10 from the trunk 1, and the three pieces are collectively stored in an appropriate bag or the like, and this bag is stored in an appropriate space on the rigid plate 2. Fix with adhesive tape (not shown).

  Thereafter, the reflecting mirror 13 removed earlier is fixed to the inner surface of the trunk 1 with an adhesive tape 22 as shown in FIG. In this case, when the entire antenna device is housed in the trunk 1, both side portions 13E and 13F of the reflecting mirror 13 are positioned on both sides of the stay 15 above the main portion 13C, and both side portions 13E and 13F are located above the upper portion. In order to allow the tip portion 13D to ride over the top, the tip portion 13D is first disposed inside the upper surface of the trunk 1, and both side portions 13E and 13F are disposed at an appropriate interval below the trunk portion 13D. Is fixed to the inner surface of the trunk 1 with an adhesive tape 22.

  In this state, as shown by the arrow in FIG. 7 with the bottom surface of the trunk 1 facing downward, the trunk 1 is placed on the rigid plate 2 so as to be covered from the upper side of the antenna device. 3C is fixed by engaging with the downward bent portion in FIG. 7 of the U-shaped metal fitting 3A of the rigid plate 2.

  In this state, the rigid plate 2 is turned upside down as compared with the state of FIG. 4, and the surface 2B of the rigid plate 2 on which the antenna device is not mounted constitutes the outer surface of the bottom surface of the trunk 1, and the entire antenna device is provided. Is stored in the trunk 1. FIG. 8 is a perspective view showing the housed state of the antenna device housed in the trunk 1 in the above-described procedure. The reference numerals correspond to those in FIG.

It is a whole perspective view which shows schematic structure of Embodiment 1 of this invention. In Embodiment 1, it is a side view which shows the structure of the fixing part of the horizontal adjustment mechanism with which the trunk was mounted | worn, and a reflective mirror. It is a top view which shows the same structure as FIG. In Embodiment 1, it is a schematic side view which shows the structure which supports the reflective mirror of an antenna. In Embodiment 1, it is the schematic which shows the structure of the reflective mirror of an antenna, (a) shows an example of a 4-part dividing structure, (b) shows another example. In Embodiment 1, it is a perspective view which shows the state which removed the transmitter, the receiver, and the radiator from the stay among the procedures which accommodate an antenna apparatus in a trunk. In Embodiment 1, it is the schematic which shows the state which fixes a reflecting mirror to a trunk inner surface and covers a trunk on a rigid board among the procedures which accommodate an antenna apparatus in a trunk. In Embodiment 1, it is a schematic perspective view which shows the state which accommodated the whole antenna apparatus in the trunk.

Explanation of symbols

1 trunk, 2 rigid plate, 3 fastener, 4 fixed disk, 5 Teflon (registered trademark), 6 rotating plate, 7 first fixing device, 8 second fixing device, 9 antenna support plate, 10 leveling mechanism, 11 support plate, 12 jack, 12A handle, 12B pin, 13 reflector, 14 stay fixing part, 15 stay, 19 transmitter,
20 Receiver, 21 Radiator.

Claims (3)

  A rigid plate that is detachably attached to the trunk and can form the bottom surface of the trunk, a reflector that is attached to one surface of the rigid plate and that can be adjusted in elevation and azimuth, and is opposed to the reflector A transmitter and a receiver configured integrally with a radiator disposed as described above, and a stay configured to support the transmitter, the receiver and the radiator and bendable to the reflector side. The reflector includes a main part including a mounting part to the rigid plate, a tip part detachably attached to the main part, and a side part detachably attached to both sides of the main part and the tip part. A portable antenna device characterized in that the main part including the stay and each side part have a length that can be accommodated in the trunk.   The tip and both sides of the reflector are removed from the main part, and the radiator, transmitter, and receiver are removed from the stay, the removed devices are stored in the trunk, and the stay is attached to the reflector. 2. The antenna device is housed in the trunk by turning the rigid plate upside down so that the other surface thereof is the outer surface of the trunk in a state where the antenna device is bent toward the main portion, and mounting the antenna device on the trunk. Portable antenna device.   A horizontal adjustment mechanism is mounted at three locations below the surface of the trunk where the rigid plate is mounted to hold the rigid plate in a horizontal state, and the trunk serves as an antenna support. The portable antenna device according to claim 1 or 2.

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