JPS6158041B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an antenna device in which an antenna main body is integrally housed in an antenna support frame and is movable.

When establishing a communication line via a geostationary satellite or with an arbitrary base station, when installing a relatively small and portable directional antenna device pointing in those directions, conventional antennas as shown in Figure 1 are used. An antenna device will be installed. That is, an antenna main body 1 consisting of a main reflector 11, a sub-reflector 12, and an antenna horn 13, a support part 12 that supports the antenna main body 1 at three points on an installation surface, and means that can be finely adjusted in the horizontal and vertical directions. 22, 23, and is supported by the antenna support frame 2. This antenna device functions by connecting to a transmitting and receiving device in the state shown in the figure. By the way, if you move the antenna device to another location,
Alternatively, when storing in a warehouse or the like, it is necessary to have a small shape so that it can be easily moved and stored, and also to not be damaged by stacking or coming into contact with other items. Therefore, the antenna body 1 and the support frame 2 are separated, and further folded.
Or by disassembling the antenna body 1 shown in Figure 2.
They must be stored separately as shown in the packaging 3 of FIG. 3 and the packaging 4 of the support frame 2 in FIG. Therefore, when reassembling the product, the steps must be reversed, which is troublesome and time-consuming, and requires a large number of packages.

The present invention solves the above-mentioned disadvantages, and the antenna body is housed in a cylindrical antenna support frame, and can be moved, stored, etc. in this housed state, and can function by being rotated upright around a rotation axis. . In other words, it is an object of the present invention to provide an antenna device that functions as a support frame that protects the antenna body in a stored state, functions as a handhold during movement, and functions as a support for the antenna body when the antenna body is in an upright state. Embodiments of the present invention will be described below with reference to the drawings.

FIG. 4 is a perspective view of an embodiment of the antenna device according to the present invention, showing the antenna device in an upright state. The antenna device is composed of an antenna horn 53 attached to a main reflector 51, and a sub-reflector 52 supported by three support arms 54, 54' to face the main reflector 51 and the antenna horn 53. a pair of ring members 61 and 62 to support the antenna main body, and the ring members 61 and 62 are attached to a support 68
The antenna support frame 6 is integrally connected to the antenna support frame 6 and has a cylindrical shape. Further, a ring member 6 on the upper surface side of this support frame 6
1 includes a support portion 64 on the outer edge of the main reflecting mirror 51 of the antenna body 5 that allows the antenna body 5 to tilt due to the relationship between a rotation axis and a bearing and that can move along the ring member 61; Moving means 65 are provided on both sides, and an extendable support member 66 engages and supports the upper part of the main reflecting mirror 51 around these support parts 64 . The support arm supporting the sub-reflector 52 is equipped with a tilting means as described later, and when the antenna main body 5 of the ring member 61 is raised, the opposing portion 61' is removed and tilted by the support 63'. and is configured so as not to affect the radiation performance of the antenna.

With the above configuration, the antenna device is installed at a predetermined position with the surface of the ring member 62 facing the installation surface and the installation seat 68 in contact with the installation surface, and the installation position is adjusted as necessary by a method not shown. Fix it so that it does not move. Then, the back side of the antenna horn 53 is connected to a receiving device (or a transmitting device or a transmitting/receiving device) not shown. Next, adjust the horizontal direction by operating the moving means 68 of the left and right support parts 64 so that the antenna body accurately faces the direction of the target.
Alternatively, the vertical direction can be adjusted and determined by operating the expansion/contraction adjustment means 67 of the support member 66. Said displacement means or adjustment means can be achieved by their axial movement, for example by means of screws, and maintain their adjusted state after adjustment. At both ends of the support member 66, the engagement portion of the main reflecting mirror 51 and the support portion of the ring member 62 are engaged and supported, for example, by a combination of hinges, so as to be able to freely resist the tilting movements caused by the above-mentioned adjustments, which is inconvenient. There isn't.

Next, in order to change the antenna device from the upright state to the stowed state, after disconnecting the antenna horn 53 and the receiver (transmitter or transceiver),
As shown in the figure, the upper main reflector 51 of the support member 66
Remove the engaging portion from the ring member 62, tilt it toward the surface of the ring member 62, and engage a portion of it as shown, and move the main reflecting mirror 51 around the axis of the support portion 64 to the upper surface of the support frame 6. In other words, the upper part is locked to the ring member 61 (details not shown) in the storage position. Further, the locking portion of the sub-reflector 52 with the upper support arm 54' is loosened, and the other two support arms 54 are tilted to the inside of the concave surface of the main reflector 51 about the fulcrums and fixed. Further, the ring member 61' is raised and connected, the ring member 61 is restored to an annular shape, and the fixing means is released from the installation surface to complete the process.

As explained above, in the antenna device according to the present invention, all of the antenna body etc. are firmly fixed and protected within the sturdy support frame, so they do not come into contact with other items and can be integrated into one piece without being removed or disassembled for packaging. It can be done. When moving, the support frame can be lifted or the cylindrical portion can be placed in a vertical position and rolled to facilitate movement. When installing, the antenna body can be easily installed in a very short time by raising the antenna body around the support part, engaging the support member, and locking the sub-reflector at a predetermined position facing the main reflector. It shows excellent effects when used in mobile antennas.

The present invention is not limited to the above embodiments, but
For example, in a method in which the antenna horn (primary radiator) is directly bent without using a sub-reflector and is directly opposed to the main reflector, the movable rotation support part of the antenna body and the support frame is not directly engaged with the ring member. If another guide part is provided inside the ring member and the ring member is supported by this guide part, there will be no part of the ring member that protrudes to the outside. Needless to say, other important parts of the circuit device may be added to the frame or the antenna main body, and appropriate reinforcing members may be added or modified.

[Brief explanation of the drawing]

Figure 1 shows the assembled state of a conventional antenna device.
2 and 3 are exploded packaging diagrams of a conventional antenna device, FIG. 4 is a perspective view of one embodiment of the antenna device of the present invention in an upright state, and FIG. 5 is a storage state. 1 is an antenna support frame, 3 and 4 are packaging, 5 is an antenna body, 51 is a main reflector, 52 is a sub-reflector,
53 is an antenna horn, 54 and 54' are support arms, 6 is an antenna support frame, 61 and 62 are ring members, 63 is a column, 64 is a support part, 65 is a moving means, 66 is a support member, and 67 is an expansion/contraction adjustment means, 68
is the installation seat.

Claims (1)

[Claims] 1. An antenna body consisting of a concave main reflecting mirror is housed in one surface of a cylindrical antenna support frame so as to be able to stand up, and a rotation axis for supporting the antenna body and storing it upright is attached to the antenna body. the antenna body is supported by an azimuth adjustment means, the azimuth adjustment means is supported on the frame, and a vertical direction for rotating the antenna main body about the rotation axis is provided on the other surface of the frame. An antenna device characterized in that a support member provided with an adjusting means is engaged with and supported in an upright position of the antenna main body.