JPH07246984A - Antenna structure for float used for buoy and storage method therefor - Google Patents

Abstract

PURPOSE:To install a receiving antenna vertically, and prevent a radiation device, a transmitting feeder, and a receiving feeder from interfering with each other in an antenna structure of a float used for buoy, in which the radiation device of an antenna connected to the transmitting feeder and a receiving antenna connected to the receiving feeder are arranged in parallel to each other. CONSTITUTION:A radiation device 3 of an antenna connected to a transmitting feeder 5 is passed through a hole drilled in the center of a disc 15 hung and held symmetrically by two mounting cords 7a, 7b fixed to the upper end of a float 2. Further, the upper end of a receiving antenna 8 connected to a receiving feeder 9 is fixed to the disc 15, the end part of the feeder 9 is fixed to a float-casing body 6, and the upper end of a holding cord 16 is fixed to a position, which is symmetric to the place to which the upper end of the receiving antenna 8 is fixed. Then, the lower end of the holding cord 16 is fixed to the float-casing body 6 so that the cord can be pulled uniformly. Thus, the disc 15 is held symmetrically in up and down directions so that it can be kept in a fixed state in balanced conditions.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a buoy float antenna structure incorporated in a sensor used for an ocean sensor or the like, and a method for housing the antenna structure.

[0002]

2. Description of the Related Art A conventional buoy float will be described below with reference to the drawings. FIG. 4 is a cutaway view, and FIG. 5 is an explanatory view of a buoy float. In the figure, 1 is a buoy body, 2 is a float, 3 is an antenna radiator (antenna for transmission), 4a, 4b.
Is a ground wire, 5 is a power supply line for transmission, which is connected to the radiator 3 of the antenna via the circuit board 13, 6 is a float casing, 7 is an attachment string, 8 is an antenna for reception, and 9 is a power supply for reception. Electrical wire,
Reference numeral 10 is a terminal of the power supply line 9, and 11 is a cantilever rod.

One end of the cantilever rod 11 is supported by the attachment string 7 and the upper end of the receiving antenna 8 is fixed. The other end of the attachment string 7 is fixed to the upper end of the float 2 and holds a cantilever rod 11, and the lower end of the receiving antenna 8 is connected to a power feeding line 9 for receiving via a circuit board 12. The terminal 10 at the end of the power supply line 9 is screwed to the float housing 6.

A hole is provided at the other end of the cantilever rod 11,
A radiator 3 fixed to the upper end of the float 2 is passed through the hole, and is supported in a movable state on the radiator 3. As a result, the cantilever 11 acts as a spacer for maintaining the distance between the power feeding line 5 and the receiving antenna 8 and the feeding line 9, and the receiving antenna 8 and the feeding line 9 are set vertically without tilting. I am trying to do it. Further, the other end of the ground wire 4a, one end of which is fixed to the power supply line 5, is screwed to the float housing portion 6 similarly to the terminal 10 described above.
The terminal b is screwed to the float housing 6 by the terminal 14.

[0005]

However, according to the above-mentioned prior art, since the cantilever rod is only movably held with respect to the radiator through the hole, the position of the cantilever rod is specified. However, there is a problem that the antenna for reception may be tilted and may not be vertical to the bottom surface of the float housing.At the same time, the antenna for reception may be tilted so that the radiator, the power supply line for transmission and the power supply for transmission are There is a problem that the distance between the electric wires cannot be maintained and they may interfere with each other. In addition, it is difficult to set the length of the receiving antenna, the receiving power supply line, the radiator and the transmitting power supply line when assembling the float. There is a problem that the antenna deteriorates and the twisting of the antenna occurs when expanding the folded float.

[0006]

SUMMARY OF THE INVENTION Therefore, according to the present invention, a buoy in which a radiator of an antenna connected to a power supply line for transmission and a receiving antenna connected to a power supply line for reception are arranged side by side in a float. In the antenna structure of the float for the antenna, the antenna of the antenna connected to the power supply line for transmission is placed in the hole opened in the center of the disk symmetrically suspended and held by the two attachment strings fixed to the upper end of the float. Through, also, the upper end of the receiving antenna connected to the receiving power supply line is fixed to the disc, the end of this power supply line is fixed to the float housing,
Further, fix the upper end of the holding string at the symmetrical position where the upper end of the receiving antenna is fixed, fix the lower end to the float casing part and evenly pull it, and hold the discs symmetrically up and down. It is characterized by keeping a fixed state in a balanced state.

[0007]

With the above construction, by passing the antenna of the antenna through the hole of the disk, the antenna of the antenna and the feed line for reception can be installed vertically. It is possible to maintain a predetermined interval between the credit power supply line and the reception power supply line. When storing the float, first store the disk in the float housing, then let the tip of the float sink into the float housing, and then fold the float body into the float housing. As a result, when the float is folded in, the disk serves as an alignment member in the float housing portion, which can be easily assembled and each line is not entangled during the expansion.

[0008]

An embodiment of the present invention will be described below with reference to the drawings. In the following description, the same parts as those in the above-mentioned conventional technique will be described using the same reference numerals. FIG. 1 is a cutaway view, and FIG. 2 is an explanatory view of a buoy float. In the drawing, 1 is a buoy body, 2 is a float, 3 is an antenna of an antenna (antenna for transmission), 4a and 4b are ground wires, 5 Is the circuit board 1
A power supply line for transmission in which an antenna radiator 3 is connected via 3, a float housing portion, 7a and 7b attachment strings,
Reference numeral 8 is a receiving antenna, 9 is a power feeding line for receiving, 10 is a terminal of the power feeding line 9, 15 is a disk, and 16 is a holding string.

The disk 15 is supported at a symmetrical portion passing through the center thereof at the lower ends of the attachment strings 7a, 7b of the same length via cushioning elastic members 17a, 17b such as rubber or springs, and both attachment strings 7a. , 7b are fixed to the upper end of the float 2 to suspend and hold the disc 15. Further, the receiving antenna 8 and the upper ends of the holding cords 16 are fixed to the lower surface of the same portion, and the lower end of the receiving antenna 8 is connected to the receiving power supply line 9 through the circuit board 12. The terminal 10 at the end of the electric wire 9 is screwed to the float housing portion 6, and the holding string 16 has the same length as the length from the upper end of the receiving antenna 8 to the lower end of the power feeding line 9 for receiving. The terminal 16 at the lower end is screwed to the float casing 6 and pulled evenly. In this way the disc 15
Will be held symmetrically from the top and bottom, and will be kept in a fixed state in a balanced state.

The receiving antenna 8 and the holding strap 16
The upper part of the upper part is not always attached to the attachment string 7a, 7b
It does not have to be the same position as the fixed part at the lower end, and may be a position displaced by 90 ° from that position, for example. A hole is provided at the center of such a circular plate 15, the antenna radiator 3 is passed through the hole, and the upper end of the radiator 3 is fixed to the upper end of the float 2. As a result, the distance between the power feeding line 5, the receiving antenna 8 and the power feeding line 9 is kept constant, and the receiving antenna 8 and the power feeding line 9 are set vertically without tilting. Radiator 3, by being set vertically,
The power feeding line 5, the receiving antenna 8 and the power feeding line 9 do not interfere with each other.

Further, the other end of the ground wire 4a, one end of which is fixed to the power feeding line 5, is connected to the float housing 6 by the terminal 10.
The ground wire 4b is screwed to the float casing 6 by the terminal 18 described above. Further, since the attachment strings 7a and 7b are connected to the disk 15 via the cushioning elastic members 17a and 17b, the radiator 3, the ground wires 4a and 4b, the receiving antenna 8 and the power supply line are assembled when the float 2 is assembled. It becomes easy to set the length of 9. Further, the radiator 3 and the receiving antenna 8 are held by the disk 15, and the disk 1
Since the symmetry point passing through the center of 5 is suspended from the upper end of the float by the attachment strings 7a and 7b, the radiator 3, the ground wire 4
Even if the a, b, the power feeding line 5, the receiving antenna 8, and the power feeding line 9 are twisted, the twisting can be prevented by the restoring force that tries to return.

The antenna structure having the above-mentioned structure is carried in a folded state and is dropped from a ship or an aircraft to a target location. After the drop, a cylinder (not shown) mounted in the buoy body 16 is mounted. The gas causes the float to swell and the folded state to be released, resulting in the shape shown in FIG. Therefore, the folding procedure will be described below with reference to FIG. (1) The air in the sheet-made float 2 is expelled. (2) The float 2 part near the float housing 6 and the disk 15 of the float 2 main body are pushed into the float housing 6. (3) After that, the portion around the float 2 is folded into the float housing 6. (4) The tip of the float 2 is folded into the float housing 6. (5) Further, the float 2 is bent to reduce the size. (6) Bend two floats near the float casing 6 inside the float casing 6. (7) The float casing 6 is covered and completed. By folding in such an order, when folding, the circular plate 15 serves to align the inside of the float housing portion 6, and furthermore, the twisting of the power feeding line 5 and the power feeding line 9 can be prevented. .

[0013]

According to the present invention described in detail above, a transmission hole is provided in the center of a disk symmetrically suspended and held by two attachment strings fixed to the upper end of the float. Through the antenna radiator connected to the wire,
The upper end of the receiving antenna connected to the receiving power supply line is fixed to the disc, the end of this feeding line is fixed to the float housing, and the upper end of this receiving antenna is fixed symmetrically. Fix the upper end of the holding string to the position, fix the lower end to the float casing part and pull it evenly, and hold the discs symmetrically up and down to keep the fixed state in a balanced state. By doing so, it has the effect that the power supply line for reception can be installed vertically, and furthermore, it is arranged with a predetermined space between the antenna radiator and the power supply line for transmission and the power supply line for reception. In addition, there is an effect that mutual interference can be prevented.

When storing the float, first, the disk is stored in the float casing, then the tip of the float is submerged in the float casing, and then the float body is placed in the float casing. By folding the float, the disc will function to align the inside of the float housing when the float is folded, and the assembly will be easy and the wires will not get entangled during expansion, and the buoy has high reliability. Has the effect of becoming a float.

[Brief description of drawings]

FIG. 1 is a cutaway view showing an embodiment of the present invention.

FIG. 2 is an explanatory diagram of a buoy float.

FIG. 3 is an explanatory diagram showing a storage method.

FIG. 4 is a cutaway view showing a conventional example.

FIG. 5 is an explanatory diagram of a buoy float.

[Explanation of symbols]

 1 buoy main body 2 float 3 antenna of antenna (transmitting antenna) 5 power supply line for transmission 6 float housing parts 7a, 7b attachment string 8 antenna for reception 9 power supply line for reception 15 disk 16 holding string

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Toshiaki Suzuki 15-111 Funakura-cho, Yokosuka City, Kanagawa Prefecture (72) Inventor ▲ Taka ▼ Hiroshi Ta No. 1-12 Toranomon, Minato-ku, Tokyo Oki Electric Industry Co., Ltd. (72) Inventor Nobuo Asano 1-7-12 Toranomon, Minato-ku, Tokyo Oki Electric Industry Co., Ltd. (72) Inventor Kazutaku Araki 1-7-12 Toranomon, Minato-ku, Tokyo Oki Electric Industry Co., Ltd. ( 72) Inventor Shinichi Sato 1-7-12 Toranomon, Minato-ku, Tokyo Oki Electric Industry Co., Ltd.

Claims (2)

[Claims] 1. An antenna structure of a buoy float in which a radiator of an antenna connected to a power supply line for transmission and a receiving antenna connected to a power supply line for reception are arranged side by side in a float. Pass the antenna radiator connected to the power feed line for transmission through the hole made in the center of the disk that is symmetrically suspended and held by the two attachment strings fixed at the upper end, and the power feed line for reception. The upper end of the receiving antenna connected to the above is fixed to the disc, the end of this feeder is fixed to the float housing, and the upper end of this receiving antenna is held in a symmetrical position at the fixed position. It is characterized in that the upper end is fixed, the lower end is fixed to the float casing part and evenly pulled, and the discs are held symmetrically up and down to keep the fixed state in a balanced state. Float for buoy Antenna structure. 2. A receiving antenna connected to a power feeding line for transmission through a radiator provided in the center of the disk and fixed to the upper end of the float, and connected to a power feeding line for reception around the disk. In the buoy float antenna structure in which the upper end of the is fixed and the lower end of the power feeding line for reception is fixed to the float housing part, when the float is stored, first the disk is stored in the float housing part, then the float A method for housing a float antenna for a buoy, characterized in that the tip of the float is sunk into the float casing, and then the float body is folded inside the float casing.