JPH01183902A - Satellite communication antenna - Google Patents

Abstract

PURPOSE:To safely and smoothly attain the moving of the fixed fittings of one edge of a jack driving device at a prescribed position by holding the fixed fittings of one edge of the jack driving device with a guide rail. CONSTITUTION:When an antenna reflecting plate is moved from a communication condition to a storing condition or from the storing condition to the communication condition, the bolt of fixed fittings 11 is removed, the coupling with a back face construction 3 is released and the antenna reflecting plate 2 can be driven at a high speed by a high speed driving device 5. At this time, since the fixed fittings 11 are held so that they cannot be pulled out from a guide rail 20 by above-mentioned bent upper parts 23 and 23 of the guide rail 20 and slide along the lengthwise direction of the guide rail 20, the movement of one edge 10 of the jack driving device 1 can be smoothly and safely executed.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a satellite communication antenna, and more particularly to an improvement in the coupling portion of the jack drive device.

[Prior Art and Background of the Invention] Conventionally, as shown in FIG. 4, this type of antenna drive device is a communication jack drive device that connects a rear structure 3 of an antenna reflector 2 and an antenna mount 4. It consists of a device l.

During communication, the antenna reflector 2 is driven at low speed by the jack drive device 1, and also when moving the antenna reflector from the communication state to the storage state, or from the storage state to the communication letter I island, the jack drive device 1 drives the antenna reflector 2 at low speed. Drive type and 1
This is done using

However, with such conventional antenna drive devices,
The jack drive device 1 also serves to drive the antenna reflector 2 during communication, move it from the communication state to the storage state, and move from the storage state to the communication state, and has a very low driving speed for communication. Therefore, there is a problem in that it takes a long time to move the antenna reflector 2 from the retracted state 1g to the communication state or from the communication state to the retracted state.

Therefore, in order to solve this problem, the present inventor has considered providing a high-speed drive device 5 that drives the antenna reflector 2 at high speed, which is separate from the communication jack drive device 221. This high-speed drive device 5 is installed on the antenna mount 4 and rotates the back structure 3 around a rotating shaft 6. Specifically, the high-speed drive device 5 includes a drive gear 5a rotated by the drive of a motor, and this drive gear 5a. It can be constructed by a driven gear 3a formed in an arcuate shape concentric with the rotating shaft 6 on the back surface structure 3 so as to mesh with the rotating shaft 6.

As a result, when moving the antenna reflector 2 from the storage state to the communication state or from the communication state to the storage state, the jack drive device 1 and the back structure 3 are uncoupled, and the high-speed drive device 5 This means that the antenna reflector 2 can be driven at high speed.

As described above, when the antenna is driven by a drive other than the jack drive device l, the fixed end 1a of the jack drive device ■
, lb must be removed, but conventionally it has been considered to hold and move the removed fixed end manually.

[Problems to be Solved] However, in the conventional method of holding and moving the fixed end manually as described above, the weight of the jack drive device is several tens of kilograms or more, so the work is dangerous (f), and the work cannot be done manually. The disadvantage is that it is difficult to

The unreleased part 1 was made to eliminate this drawback, and when the antenna is driven by a drive other than the jack drive device, the fixed end of the jack drive device that has been released from the coupling can be held and moved smoothly and safely. The purpose is to provide a satellite communication antenna that can.

(Means for Solving Problems) In order to achieve the above object, the present invention provides a satellite communication antenna equipped with a jack drive device that connects a back structure of an antenna reflector plate and an antenna mount. One of the ends is configured to be slidable along a guide rail.

[Example] Next, an example of the present invention will be described with reference to the drawings.

FIG. 1 is a schematic front view of an embodiment of the present invention, FIG. 2 is a perspective view showing the main parts, and FIG. 3(a).

(b) is an action explanatory diagram. In these figures, parts that are the same as those of the conventional device described above (see FIG. 4) are designated by the same reference numerals. Therefore, the explanation will be omitted.

The feature of the unimplemented example is that, as shown in FIGS. 1 and 2, the joint end 10 of the jack drive device 1 with the back structure 3 is configured to be slidable along the guide rail 20. be.

The guide rail 20 is a back structure 3 of the antenna reflector 2.
It consists of a bottom plate 21 fixed to the top and side plates 22 and 22 whose upper parts 23 are bent.

Reference numeral 11 denotes a fixing metal fitting that constitutes the joint end 10 of the jack drive device l with the rear structure 3, and the guide rail 2
It is slidably arranged within 0. This fixing metal fitting 1
1 is the bend J:, portion 23.23 of the guide rail 20.
The guide rail 20 is held in such a way that it does not come off the kite rail 20, and can freely move only in the longitudinal direction of the guide rail 20, as shown by the arrow in FIG.

Reference numeral 12 denotes a fixing bolt hole, and when the antenna reflector plate 2 is driven at low speed by the jack drive device l during communication, the fixing fitting 11 is fixed to the rear structure 3 using this bolt hole 12. ing. 13 is the jack drive device 1
This is the connection part between the

The satellite communication antenna described above is of a jack-driven type [1, in which the fixing bracket 11 is fixed to the back structure 3 during communication, and the antenna reflector 2 is driven at low speed as shown in FIG. 3(a). As shown in FIG. 3(b), when moving the antenna reflector from the communication state to the storage state or from the storage state to the communication letter 7m, the fixing metal fitting 11
By removing the bolts, the connection with the rear structure 3 is released, and the antenna reflector plate 2 can be driven at high speed by the high-speed drive device 5. At this time, the fixing metal fitting 11 is held by the bent upper part 23.23 of the guide rail 20 so as not to come off from the guide 1/-rule 20, and
0, one end 10 of the jack drive device 1 can be moved smoothly and safely.

[Effects of the Invention] As explained above, the present invention allows the fixing bracket at one end of the jack drive device to be safely and smoothly moved to a predetermined position by holding the fixing bracket at one end of the jack drive device with a guide rail. can do.

[Brief explanation of the drawing]

FIG. 1 is a schematic front view of an embodiment of the present invention, FIG. 2 is a perspective view showing the main parts, and FIG. 3(a). (b) is an explanatory diagram of the operation, and FIG. 4 is a schematic front view of a conventional example. l: Jacket drive device 2: Antenna reflector 3: Back structure 4: Antenna mount 5: High speed drive device 6: Rotation axis lO: Connection end of jack drive device with back structure ll:
Connecting end fixing fitting 12: port hole 20 hard rail

Claims (1)

[Claims] In a satellite communication antenna equipped with a jack drive device that connects a rear structure of an antenna reflector and an antenna mount, one end of the coupling end of the jack drive device is slidable along a guide rail. Features a satellite communication antenna.