JP2655565B2 - Sound buoy - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sound buoy which generates sound in water by being dropped into the sea from an aircraft or the like, then sinking into the sea and exploding a built-in sound generator when reaching a predetermined depth. It concerns the device.

[0002]

2. Description of the Related Art There are various types of conventional sounding devices. For example, in the case of an underwater sounding type sounding device in which sound is emitted after being dropped into the sea, an almost constant speed after dropped onto the sea from a high place such as an aircraft. Sinks the sea, explodes the built-in gunpowder when it reaches a predetermined depth,
The explosion sound is used as a disposable device that is used as a sound source for the undersea. This type of pronunciation device is described in the document "PRINCIPL
ES OF UNDER WATER SOUND, 3rd edition, by RJ Urick,
Mc-Grow Hill Book Co., Chapter 4, 4.4 ".

[0003] In such a device, the submergence in the sea is settled vertically at a constant and stable speed depending on the weight of the device and the shape of the shell, and is determined in advance. The ignition of the explosive is performed by the water pressure switch when it sinks to the depth, thereby realizing sound generation at a desired depth. That is, before the sounding device is dropped, a predetermined water pressure value is set in advance so that the switch is driven when the depth reaches a predetermined water pressure, and ignition is enabled only when the water pressure is received. Thereby, a predetermined explosion depth can be selected from outside the sounding device.

[0004] In addition, since this type of conventional sound generating device is designed to generate sound using explosives, it has a small size and is excellent in economy, and has a structure that is easy to carry because of its small size. Nevertheless, it has a feature that a large sound output can be obtained.

[0005]

However, the above-mentioned conventional sound generating device has a disadvantage that the time and place at which sound is generated cannot be freely selected. That is, if it is desired to sound at a desired time and place, there is a problem that the present sounding device must be moved to the desired place a predetermined time before the desired sounding time. Was.

[0006] In order to make this sounding device sound, as described in the conventional example, the sounding device is dropped on the sea from an aircraft or the like and, after landing, sinks in water at a constant speed to reach a desired depth. This is because a water pressure switch that is sometimes activated by the water pressure at that depth is built-in. Therefore, according to the conventional sound generation device, each time a desired sound is desired to be generated, the main sound generation device is set at a desired sound generation time and place. Has to be located.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and it is possible to generate a sound at a desired sounding time and place without moving the sounding device to a sounding time and place desired to sound. It is an object of the present invention to provide a sound generating device which eliminates inconvenience in handling and makes it possible to generate sound at a desired place at a desired time by a remote operation.

[0008]

SUMMARY OF THE INVENTION In order to achieve the above-mentioned object, the present invention is directed to a method of dropping into the sea and then sinking into water.
In a sound buoy that incorporates a sound generator that generates an explosion sound by operating a switch when the depth reaches a preset depth and exploding explosives, in an air chamber arranged above the sound buoy, Signal receiving means for receiving a control signal from a remote place, and decoding means for decoding and determining whether the control signal received by the signal receiving means is a release command are provided. The sound generating device is detachably provided through a window formed on the outer peripheral surface of the sound buoy device, and is located on the lower surface side of the sound generating device and operated by the judgment of the decoding means to operate the sound generating device. A release means is provided for releasing the buoy from the sound buoy.

[0009]

According to the above-mentioned construction, the sound buoy device first accommodates the signal receiving means and the decoding means in the air chamber disposed above the sound buoy device in a land facility, and the lower part has the one unit.
One or a plurality of sounding devices, and release means for releasing the sounding devices into the sea. At this time, the decryption means and the release means are connected so that the release operation is performed according to the result of the instruction content decrypted by the decryption means. Further, a desired value is set to a sound-producing switch provided in the sound-producing device when the device is mounted on the sound-producing buoy.

After the sound buoy device thus constructed is dropped and floated on a desired sea by an aircraft or the like, when a desired sound time comes, a control radio wave is emitted from a remote place to the sound buoy device. . When the signal receiving means mounted on the upper part of the sounding buoy receives the control signal from the remote place, it sends it to the decoding means. The decoding means decodes the control signal and cancels the canceling means only when it is determined that the sounding device mounted in the sounding buoy matches the signal value unique to each sounding signal and that it is a canceling command.

Thus, the sounding device separates from the sounding buoy and sinks into the sea. When the sounding device sinks to a preset depth, the switch is activated to explode the sounding device and sound. .

[0012]

An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a longitudinal sectional view showing the structure of the sound buoy according to the present embodiment. In FIG. 1, reference numeral 1 denotes an outer casing of a substantially cylindrical sound buoy device made of metal, which houses the entire sound buoy device, and shows a state where it is floating on the sea surface 2 here. ing.

Reference numeral 3 denotes an air chamber provided at the uppermost portion of the outer casing 1, which is partitioned by a partition surface and has a structure in which airtightness is maintained, and also has a role of giving buoyancy to the present sound buoy. . Reference numeral 4 denotes a radio receiver as a signal receiving means, which is an electronic circuit housed in the air-tightly maintained air chamber 3, and reference numeral 5 denotes a code decoder as decoding means, which is also an electronic circuit housed in the air chamber 3. , These are electrically connected to each other. Numeral 6 denotes an antenna which penetrates the upper end surface of the air chamber 3 from the radio receiver 4 and protrudes upward, and wirelessly receives a control radio wave emitted from a remote place to be described later to operate the present sound buoy. It has become.

Numerals 7a and 7b denote sound-emitting buoys having the same structure. These sound-emitting buoys are mounted in an external housing 1 of the present sound buoy by a cartridge system in a land facility (not shown). After the apparatus is laid, the antenna 6 wirelessly receives a predetermined control radio wave to release the release mechanism, so that the antenna 6 sinks into the sea by its own weight and explodes at a predetermined depth. Note that the above reference numerals a and b are given to a plurality of the same components, and a is placed at the top and a is placed at the bottom, and b is placed at the bottom. In addition, the same reference numerals are given to the components described below to represent the vertical arrangement.

Reference numerals 8a and 8b denote accommodation rooms for accommodating the sound generating devices 7a and 7b, respectively.
Are a pair of left and right release plates 9a and 10a, and 9b and 10b, which are inserted and engaged toward the center from a notch hole formed facing a part of the peripheral surface of the outer casing 1 of the sounding buoy.
And it is formed by partitioning. This release plate 9a
FIG. 2 is a plan view of a release mechanism as release means constituted by the components 10a, 10b, 9b, 10b and the like, as viewed from below, and FIG.

As shown in FIGS. 2 and 3, the outer casing 1 is formed with a cutout hole 1c through which the release plates 9a and 10a and 9b and 10b can pass. 1c to release plates 9a and 10a, and 9b and 1
0b is inserted toward the center, and the leading end portions are overlapped with a predetermined width. 11a, 11b
Is a cylindrical release case having an outer diameter smaller than the inner diameter of the outer housing 1, and a release plate 9 inserted through the outer housing 1 through a notch hole 11c formed in a part of its peripheral surface.
a and 10a, and 9b and 10b are similarly inserted through. The release case 11 is supported by overlapping and supporting the tips inside the cylindrical shape.
a and 11b are held in place. In addition, the notch hole 11c and the notch hole 1c both define the cylindrical release case 11 and the peripheral surface of the outer casing 1 by a circumferential length corresponding to the width of each of the release plates 9 and 10. The release plates 9 and 10 are notched with a margin in the thickness direction of the release plates 9 and 10 in the vertical direction.

Reference numerals 12a and 12b denote holding rods, 13
a and 13b are coated electric wires from the code decoder 5 connected to the holding rods 12a and 12b, and when current is applied to the holding rods 12a and 12b from the coated electric wires 13a and 13b, Release plates 10a, 10
The release rods 12a and 12b, which hold the leading end of b from the lower surfaces of the release cases 11a and 11b as fulcrums, are released to allow the release cases 11a and 11b to be detached from the outer casing 1. That is, the holding bar 12a or 12b
Is released by the supply current from the covered electric wire 13a or 13b, the release plates 9a and 10a and the outer casing 1, or the release plates 9b and 1b are released by the spring force of the spring plates 15a or 15b.
0b and the outer casing 1 are disengaged, and the disengagement case 11a,
The release plates 9a, 10a and the holding rod 12a, or the release case 11b, the release plates 9b, 10b and the holding rod 12b fall downward, and subsequently the sound generator 7a or 7b, the spring plate 15a or 15b, and the wall plate 14 fall. And sounding device 7
a or 7b is settled from the outer casing 1 into the sea.

Returning to FIG. 1, reference numeral 14 denotes the release cases 11a and 1
1b is a wall plate arranged so as to close the lower end side of the release case 11a located on the upper side, thereby constituting the ceiling surface of the lower accommodation room 8b. 15a and 1
Reference numeral 5b denotes a spring plate arranged at the upper end of the sound generators 7a and 7b. The spring plates 15a and 15b are respectively provided with a partition surface serving as a ceiling surface of the accommodation room 8a and a bottom surface. And the sound generator 7b located at the lower side is stably held without any gap between the wall plate 14 serving as the ceiling surface of the accommodation room 8b and the release case 11b serving as the bottom surface. Each of the sound generators 7a and 7b has a spring property so that
And downwards.

FIG. 4 is a perspective view showing a state in which the sound emitting device is mounted on the buoy while the sound buoy having the above-described configuration is being prepared in advance. As shown in FIG. Windows 16a and 16b of a predetermined size are cut out on the peripheral surface thereof, and these windows 16a and 16b are notched.
b is configured to be freely openable and closable.
b, the sound generators 7a and 7b are loaded and stored in the storage chambers 8a and 8b.

Next, the operation of the sound buoy having the above configuration will be described step by step, including how to use it. First,
In the preparatory stage shown in FIG. 4, two sounding devices 7 a and 7 b are connected to a sounding buoy in a land facility not shown.
It is loaded from the windows 16a and 16b formed in the outer casing 1.
At this time, the above-mentioned spring plates 15a and 15b are arranged on the upper end surfaces of the sound generating devices 7a and 7b, so that the sound generating devices 7a and 7b can be easily and stably fixed so as not to be displaced and firmly fixed in the accommodation chambers 8a and 8b.

The windows 16a and 16b are closed before and after the sound generators 7a and 7b are loaded. Therefore, the sound generating devices 7a and 7b use the spring plates 15a and 15b to provide a space between the partition surface and the upper end surface of the release case 11a in the upper housing chamber 8a and a wall in the lower housing chamber 8b. It is firmly and stably accommodated between the plate 14 and the upper end surface of the release case 11b. As a result, the release cases 11a and 11b are urged from above by the sound generators 7a and 7b, but the release plates 9a and 10a inserted and engaged from the outer casing 1 from both left and right directions toward the center, and The holding bars 9a and 10b are held at predetermined positions in the outer casing 1 by the holding rods 12a and 12b which urge the holding members 9b and 10b upward.

Further, the second housing 2 is housed in the housing chambers 8a and 8b.
Each of the sounding devices 7a and 7b sets a desired depth value to be sounded before loading. Further, an address to be described later for each sound buoy and the set desired sound depth value are recorded in a memo or the like and are left. The sound buoy device thus prepared is transported to the sea and dropped and floated on the sea surface 2 at a position where it is desired to sound as shown in FIG. Generally, sound buoys having different addresses to be described later are laid one by one on the sea at different positions.
Then, when the desired sounding time is reached, a control radio wave (not shown) is emitted from a remote place to activate the sounding buoy at the desired position.

Radio waves emitted from remote locations are modulated by addresses and command codes, respectively, and are received and demodulated by the antenna 6 and the radio receiver 4 shown in FIG. The control signal demodulated in this way is sent to the code decoder 5 and decodes the address code and the command code. This address has a unique value for each sound buoy device, and an instruction is accepted only when the addresses match. That is, the address can be used to select a sound buoy that is operated from a remote place that emits control radio waves. This command can give another command in addition to the command to release the sounding device 7a or 7b into the sea in the present invention. For example, there is a sinking command or the like for sinking the sounding buoy device itself without releasing the sounding devices 7a and 7b. The encoding and decoding of the address and the instruction can be easily realized by a combination of different audible band frequencies. Although not shown, the sounding buoy also has a power source such as a seawater battery.

The antenna 6 of the sounding buoy laid on the desired sea and floating on the sea surface 2 receives the control radio waves by radio, and the address of the control signal demodulated by the radio receiver 4 matches. When the release instruction is decoded, the code decoder 5
Supplies a release current to the insulated wire 13b,
Cancel. When the holding rod 12b is released, as described above, the release plates 9b and 10b are released from the outer casing 1 and fall together with the release case 11b, and the sound generator 7b located on the lower side starts sinking into the sea. I do. Subsequently, the spring plate 15b and the wall plate 14 also fall into the sea by their own weight.

As described above, the code decoder 5 supplies a release current to the insulated wire 13b in the first sounding release command, and supplies a release current to the insulated wire 13a in the next release command. That is, in the structure shown in FIG. 1, the lower sounding device 7b is first settled, and then the upper sounding device 7a is sequentially settled down by the sounding device canceling instruction twice in total. Next, the release operation of the release mechanism will be described with reference to FIG. First, since the release case 11 in this release mechanism is pushed from above, the release plates 9 and 10 are pushed from above by the notch portion 11c, and the lower surface of the notch hole 1c of the outer casing 1 supports this force. In addition, the holding bar 12 is supported from below by a small force by leverage. For this reason, when the holding bar 12 is released, the release plates 9 and 10 are pushed downward by the force of pressing down the release case 11, and the notch 1 c of the outer casing 1 is engaged with the release plates 9 and 10. The part is released, and the release mechanism constituted by the release case 11, the release plates 9, 10 and the holding rod 12 falls downward.

The sound generators 7a and 7 thus dropped
When b sinks to the desired sounding depth set before loading into the outer casing 1, b explodes the explosive with a water pressure switch or the like to sound. Thereby, sound generation at a desired depth at a desired time is performed by an operation from a remote place. In the embodiment described above, while the sound buoy is laid on the sea at a desired position and floats on the sea surface 2, the periphery of the outer casing 1 other than the air chamber 3 is as shown in FIG. , So as to be immersed in seawater, the covered electric wires 13a, 13b and the holding rod 1
The electronic circuit portions 2a and 12b are covered with a covering material or the like and insulated.

In the embodiment shown in FIG. 1, the release mechanisms 9b, 10b, 11 are provided on the lowermost surface of the outer casing 1 of the sounding buoy.
Although the b and 12b are disposed in a bare state, they are released by receiving the pressure when the sound buoy is dropped on the sea surface 2, and the pressure at the time of actual landing is released by the release mechanisms 9b, 10b, 11b and 12b.
It is assumed that there is also a pressure receiving release mechanism (not shown) for not directly transmitting the pressure to the pressure receiving mechanism.

Further, in the embodiment shown in FIGS. 1 to 3, the release mechanisms 9, 10, 11, 12 are held by the cutout holes 1c of the outer casing 1 of the present sound emitting buoy. It is needless to say that notch holes can be provided in two pillars fixed to the floating air chamber 3 and extending downward to hold the release mechanisms 9, 10, 11, 12 as a matter of course. is there.

In the embodiment shown in FIG. 1, the buoyancy and the air chamber 3 are provided by utilizing the uppermost portion of the outer casing 1 of the present sound buoy. However, if the buoyancy is insufficient, the buoyancy is expanded separately. A radio receiver 4 and a codec 5 inside the outer casing 1.
Of course, it is also possible to provide an inner casing that accommodates the In the embodiment shown in FIGS. 1 to 3, an example has been described in which the release operation is performed by supplying the release current from the code decoder 5 to the holding bar 12. However, the present invention is not limited to this. It is also possible to drive the presser bar 12 by sending a minute signal from the detector 5, or to release the presser bar 12 from the code decoder 5 via a mechanical actuator.

The spring plate 15a or 15b is
While transporting the sound buoy equipped with the sound generators 7a and 7b, the sound generators 7a and 7b also play a role of firmly holding the sound generators 7a and 7b in the storage chambers 8a and 8b against vibrations and impacts applied from the outside. I have. Also, the number of loaded sound generators is 2
It is not limited to individuals.

[0031]

As described above, according to the present invention, after being dropped into the sea, it sinks into the water, and when reaching a preset depth, the switch is operated to explode the explosive. In a sound buoy incorporating a sound generator for generating an explosion sound, a signal receiving means for receiving a control signal from a remote place in an air chamber disposed above the sound buoy, and control received by the signal receiving means. Decoding means for decoding the signal to determine whether or not the signal is a release command is provided, and at the lower part of the sounding buoy device, the sounding device is provided through a window formed on the outer peripheral surface of the sounding buoy device. In addition to being detachably provided, a release means is provided on the lower surface side of the sounding device for releasing the sounding device from the inside of the sounding buoy by operating according to the judgment of the decoding means. A. Thereby, when the signal receiving means receives a control signal from a remote place, decodes the control signal by the decoding means, and the sounding buoy device agrees with each unique signal value, and determines that it is a cancellation command. Only when the sounding device is detached from the sounding buoy and settled into the sea by releasing the releasing means, the sounding device explodes and sounds when it sinks to a preset depth.

From the above, when the sound buoy is desired to be sounded at a desired place at a desired time, the sound buoy is floated from a remote place to a place where sound is to be sounded. Since it is sufficient to emit a control radio wave having a code corresponding to, it is possible to easily generate sound at a desired place and at a desired time without moving to a desired position at a desired time as in the related art, Workability can be greatly improved.

Since the sounding device can be loaded into the sounding buoy before use, the sounding buoy before the sounding device is loaded can be managed in a general facility. Because it can be managed in a special facility that handles, safety can also be ensured. That is, the sounding device that is a dangerous material and the sounding buoy that is not a dangerous material without the sounding device are manufactured by different manufacturers and delivered to a user's storage, and the user loads the sounding device before use. Can be used.

Further, since the sound generator to be loaded by adopting the above-mentioned structure can use various standard types of conventional apparatuses, it is possible to select the sound generator to be loaded according to the purpose, which is simple and convenient. In addition, an economic effect can be obtained. Also, if the sound buoy is dropped by an aircraft and laid on a desired sea, and control radio waves corresponding to each sound buoy are emitted from a remote place for each desired sound time, A wide range of seas can be covered simultaneously by the aircraft. In addition, if a simple wireless transmitter is provided in the sounding buoy, the release signal can be returned as a response signal, and the wireless reception can be reliably confirmed, thereby further improving reliability. Can be expected to improve.

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional view showing a structure of a sound buoy according to the present embodiment.

FIG. 2 is a plan view of a release mechanism of the sounding buoy shown in FIG. 1 as viewed from a lower surface side.

FIG. 3 is an enlarged view of a main part of a release mechanism.

FIG. 4 is a perspective view showing a situation where the sounding device is loaded into the sounding buoy.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Outer case 3 Air chamber 4 Radio receiver 5 Code decoder 7 Sound emitting device 8 Housing room 9 Release plate 10 Release plate 11 Release case 12 Holding rod 13 Insulated wire 14 Wall plate 15 Spring plate 16 Window

Continuation of front page (72) Inventor Katsushi Okubo 1-7-12 Toranomon, Minato-ku, Tokyo Oki Electric Industry Co., Ltd.

Claims (1)

(57) [Claims] 1. After being dropped on the sea, it sinks into the water,
In a sound buoy that incorporates a sound generator that generates an explosion sound by operating a switch when the depth reaches a preset depth and exploding explosives, In an air chamber arranged above the sound buoy, Signal receiving means for receiving a control signal from a remote place, and decoding means for decoding and determining whether the control signal received by the signal receiving means is a release command are provided. The sound generating device is detachably provided through a window formed on the outer peripheral surface of the sound buoy device, and is located on the lower surface side of the sound generating device and operated by the judgment of the decoding means to operate the sound generating device. Releasing means for releasing the sounding buoy from the inside of the sounding buoy device, wherein the signal receiving means receives a control signal from a remote place, and decodes the control signal by the decoding means to decode the sounding buoy. Only coincides with the signal value unique to each, and only when it is determined that it is a release command, by releasing the release means to release the sounding device from the sounding buoy device and sink into the sea to a preset depth. A sound buoy device, wherein a sound device is exploded when it sinks and sounds are generated.