JPH0861899A - Chaff sprayer - Google Patents

Abstract

PURPOSE: To efficiently spread chaff by partitioning a chaff dispersing cartridge containing the chaff and dispersing it in the air, providing propulsion rockets in the respective sections, separating it at the respective sections in the air, and then scattering the chaff in the air. CONSTITUTION: A two-stage type chaff scattering cartridge is launched from a launching stand, and a first-stage chaff scattering cartridge and a second-stage chaff scattering cartridge are separated after several seconds. After they are separated, chaff 6 contained in the first stage cartridge is first scattered in the air. After several seconds, the chaff 6 contained in the second stage cartridge is scattered in the air. Chaff cloud of thin and large width is formed with respect to the flying direction of the second stage cartridge, and the cloud having a large spread is formed in the perpendicular direction of flying.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a chaff distributing cylinder for distributing chaffs consisting of metal pieces, which are radio wave reflectors, in two stages and distributing them in the air.

[0002]

2. Description of the Related Art FIG. 8 shows, for example, HYCOR 1975 edition catalog "MK171 MOD 0CHAFF CA."
FIG. 9 is a cross-sectional view of the conventional chaff spreading cylinder shown in “RTRIDGE RBOC”, and FIG. 9 is a cross-sectional view taken along the line AA of FIG. 8. In FIG. 8, 11 is a propulsion provided at the end of the chaff spreading cylinder. A rocket 1 is a bottom pedestal on which the propulsion rocket 11 is mounted, and 2 is an extension part fixed to the center of the bottom pedestal 1. 3 is a detonator located at the center of the chaff spreading cylinder and having a length comparable to that of the spreading tube. Reference numeral 4 is an inner cylinder for accommodating the detonation wire 3, 5 is an outer cylinder forming the outer shell of the chaff spreading cylinder, and 6
Is 4 partitions 6a to 6d using 3 partition plates 7a to 7c
It is a chaff to be stored in.

The following operation will be described. 10 shows a cross section of the prolongation portion 2 of FIG. 8. In FIG. 10, when an external pressure above a certain level is applied, the ignition pin 9 built in the detonator 8 pushes in the direction of the prolongation agent 10 and impacts the prolongation agent 10. The delayed medication 10 is ignited and begins to burn. 9a shows the position of the ignition pin before pressurization, and 9b shows the position of the ignition pin after pressurization. The burning time of the delay agent 10 is about several seconds. This time is a postponement time until the chaff spray tube explodes.

After burning of the prolongation medicine 10, next in FIG.
The squib 3 inside the inner cylinder 4 is ignited, and the squib 3 explodes in an instant. The impact of the explosion is transmitted to the chaff 6a through the inner cylinder 4.
To 6d and the outer cylinder 5, and the chaffs 6a to 6d and the outer cylinder 5 explode. Chaffs 6a-6 stored in 4 compartments
At the same time, d is scattered in the air by the explosion.

Next, when the propulsion rocket 11 is added, the operation sequence of the conventional chaff spreading cylinder will be described with reference to FIG. The chaff spray cylinder to which the propulsion rocket 11 is added is fired from the launch pad, and the operation of the delay portion 2 causes the chaff spray cylinder to explode at a predetermined altitude and distance after a few seconds, and the chaff spread cylinders are stored in four compartments ( 6a-6d)
However, it is 4 concentric with the flight direction of the chaff spreading tube.
Layers are overlaid and scattered at once. In FIG.
The chaff spraying state when the propulsion rocket 11 is added to the chaff spraying cylinder 20 and the chaff spraying cylinder 20 is allowed to fly in the air is shown.

[0006]

Since the conventional chaff distributing cylinder is constructed as described above, when the chaff distributing cylinder has the chaffs dispersed in the air, the chaff distributing cylinder is concentrically centered in four layers. There is a problem that the chaff existing in the center of the chaff cloud may not receive the energy of the radar wave and thus there is a useless chaff because it overlaps and spreads. Further, in order to obtain a sufficient spread of chaff, it is necessary to use a large number of chaff spreading cylinders.

The present invention has been made in order to solve the above-mentioned problems. In the state where the chaff is scattered in the air, there is no useless chaff in the center of the chaff cloud, or the chaff spreads efficiently. The purpose is to obtain a chaff spreading tube that can.

[0008]

According to the chaff spreading cylinder of claim 1, the chaff spreading cylinder for storing chaff and distributing the chaff in the air is divided and provided with a propulsion rocket for each section, and separated in the air for each section. After that, each sprays chaff in the air.

In the chaff spreading cylinder of the second aspect, each section has a time extension part with a timer at the bottom of the spreading cylinder.

In the chaff spreading cylinder according to claim 3, the time delay portion with the timer ignites with the detonator having the ignition pin and the pin,
It has a delay drug that burns for a predetermined time, a shock sensor that detects a shock at the time of launch, and a delay timer that sets a delay time.

In the chaff spray cylinder of the fourth aspect, the delay timer outputs a signal for separating the sections and an ignition signal for the unlit sections.

In the chaff spreading cylinder according to the present invention, the delay part with the timer has a shock sensor for detecting a shock at the time of firing, a delay timer for firing the detonating wire, a signal for separating the spaces, and a non-ignited space. A delay timer that outputs an ignition signal.

[0013]

In the chaff spraying cylinder according to the first aspect, the chaff spraying cylinders are separated into sections in the air, and then the chaffs are sprayed in the air.

According to the chaff spraying cylinder of claim 2, the chaff is sprayed in the air after a lapse of a fixed time after the firing.

In the chaff spray cylinder of the third aspect, the delay pin is ignited by the ignition pin and burns for a predetermined time, and the shock sensor detects the shock at the time of launching, and the delay timer sets the delay time.

In the chaff spray cylinder of the fourth aspect, the delay timer outputs a signal for separating the sections and an ignition signal for the unlit sections.

According to a fifth aspect of the present invention, there is provided a chaff spray cylinder including a delay timer for firing a detonating wire when an impact sensor detects an impact at the time of launch, and a delay timer for outputting a signal for separating between compartments and an ignition signal for an unignited compartment. to start.

[0018]

【Example】

Example 1. Embodiment 1 of the present invention will be described below with reference to the drawings. In FIG. 1, reference numeral 12a denotes a first-stage first propulsion rocket, 15a denotes an outer cylinder of a first-stage chaff spreading cylinder, and all parts inside the chaff spreading cylinder are placed on the bottom pedestal 1 at the bottom of the chaff spreading cylinder. Fix with. Reference numeral 13 is a time extension part with a timer fixed to the central part of the bottom pedestal 1. The inside of the chaff spray tube is divided into several sections, and a partition plate 7 made of metal is used to divide between the sections.

As shown in FIG. 2, a detonating wire 3 having a length corresponding to the chaff spreading cylinder is provided at the center of the chaff spreading cylinder in the first stage.
There is. The chaff 6 is housed between the inner cylinder 4 and the outer cylinder 15a. The structure of the second-stage chaff spreading cylinder is the same as the structure of the first-stage chaff spreading cylinder.
In addition, the seam between the first-stage chaff spraying cylinder and the second-stage chaff spraying cylinder has a separating portion 14 for separating it.

Next, the operation of this embodiment will be described.
FIG. 3 shows a cross section of the time extension part 13 with the timer shown in FIG. 1. When an external pressure above a certain level is applied to the time extension part 13 with the timer, the detonator 8
The ignition pin 9 built in the cylinder pushes in the direction of the delay agent 10 and gives an impact to the delay agent 10, causing the delay agent 10 to ignite and start burning. 9a shows the position of the ignition pin before pressurization, and 9b shows the position of the ignition pin after pressurization. The burning time of the delay agent 10 is about several seconds. Further, the delay unit 13 with the timer has an impact sensor 16 for detecting the impact at the time of firing of the chaff spray cylinder, and the delay timer 17 is activated by the activation of the impact sensor 16. The delay timer 17 sets a delay time of about several seconds, and after the delay time elapses, a signal for disconnecting the first-stage chaff spray tube and the second-stage chaff spray tube and the second
The ignition signal of the propulsion rocket 12a is output. The delay time of the delay timer 17 is set earlier than the combustion time of the delay drug 10.

When a signal is output from the delay timer 17, in FIG. 1, the separating portions 14 of the first-stage chaff distributing cylinder and the second-stage chaff distributing cylinder are actuated to separate the respective chaff distributing cylinders and at the same time. The two-propelled rocket 12b is ignited. After the chaff spray cylinder is separated and the delay agent 10 in the time delay portion 13 with a timer burns, the detonating wire 3 in the inner cylinder 4 operates, and the detonating wire 3 explodes instantly. The impact of the explosion is transmitted to a part of the chaff 6 and the outer cylinder 5 through the inner cylinder 4, and the chaff 6 and the outer cylinder 5 explode. The explosion caused Chaf 6 to
Spray in the air.

Next, the operation sequence of the two-stage chaff spreading cylinder will be described. The two-stage chaff spray cylinder is fired from the launch pad, and after a few seconds, the first-stage chaff spray cylinder and the second-stage chaff spray cylinder are separated. After being separated, first, the chaffs 6 stored in the first-stage chaff spray tube are sprayed into the air, and a few seconds after that, the chaffs 6 stored in the second-stage chaff spray tube are sprayed into the air. A chaff cloud with a thin width is formed in the flight direction of the two-stage chaff spray cylinder 21, and a chaff cloud having a large spread in the vertical direction of the flight is formed. FIG. 4 shows how the chaff 6 is sprinkled when the two-stage chaff spreading cylinder 21 is flown into the air.

In this embodiment, the chaff spraying cylinder is of a two-stage type, and the first-stage chaff spraying cylinder and the second-stage chaff spraying cylinder are separated after firing, and the chaff 6 stored in the first-stage chaff spraying cylinder is first separated. Is sprayed in the air, and a few seconds after that, the chaffs 6 stored in the second-stage chaff spreading cylinder are sprayed in the air, so that chaff clouds can be dispersed and the efficient spreading of the chaffs 6 can be obtained.

Example 2. In the above embodiment, the delay unit with timer 1 in which the delay agent 10 and the delay timer 17 are mixed is used.
Although 3 is shown, a timer capable of electrically setting the time may be provided instead of the delay agent 10 to ignite the detonating wire 3. FIG. 5 shows a diagram in which the timer delay unit 13 shown in FIG. 3 is replaced with a timer. In FIG. 5, 16 is an impact sensor, 1
Reference numeral 8 indicates a delay timer for firing the detonating wire, 17 indicates a delay timer for disconnecting the first-stage chaff spray cylinder, disconnecting the second-stage chaff spray cylinder, and igniting the second propulsion rocket.

When the impact sensor 16 for detecting the impact at the time of firing the chaff spreading cylinder is activated, the delay timer 18 for firing the detonating wire is activated and the delay timer 17 is activated. The delay time of the delay timer 17 is set earlier than the delay time of the delay timer 18 for firing the detonating wire.

According to this embodiment, since the timer is used in place of the delay drug 10, the ignition signal can be transmitted accurately in a predetermined delay period.

Embodiment 3 FIG. Further, in the above-mentioned embodiment, the two-stage type chaff distributing cylinder is shown, but a three-stage type chaff distributing cylinder may be used in order to obtain a more efficient spread of the chaff. FIG. 6 shows a three-stage chaff spreading cylinder. Three
By using a multi-tiered chaff spreading cylinder, a chaff cloud with a larger spread is formed in the vertical direction of the flight.

Example 4. In the above-described embodiment, the number of partition plates 7 for partitioning the inside of the chaff spraying cylinder into two partitions is two, but the same effect can be obtained even if the number of partition plates 7 is three or more. FIG. 7 shows a two-stage chaff spreading cylinder having three partition plates 7. By using three partition plates 7 and dividing the inside of the chaff spreading cylinder into four sections, the chaff cloud formed by the chaff spreading cylinders in each stage is further expanded.

[0029]

According to the chaff spraying cylinder of claim 1, the chaff spraying cylinder for storing the chaff and spraying it in the air is divided and provided with a propulsion rocket for each compartment, and after separating each compartment in the air, Since the chaff is sprayed in the air, it is possible to efficiently spread the chaff in a state of being sprayed in the air.

In the chaff sprinkling cylinder of the second aspect, the chaff sprinkling cylinder has a timer-equipped time extension at the bottom of the sprinkling cylinder for each section, so that the chaff can be reliably sprinkled in the air after a predetermined time has elapsed after the firing.

In the chaff spraying cylinder according to claim 3, the time delay portion with the timer ignites with the detonator having the ignition pin built therein and the pin.
Since it has a delay drug that burns for a predetermined time, an impact sensor that detects the impact at the time of launch, and a delay timer that sets the delay time, after the predetermined time has elapsed after the launch, it is sure to separate the chaff Is sprayed in the air.

In the chaff spraying cylinder of claim 4, since the delay timer outputs the signal for separating the compartments and the ignition signal for the unfired compartments, the chaff spraying operation after the separation for each compartment is performed in sequence. Definitely done.

In the chaff spraying cylinder of claim 5, the time delay part with a timer detects a shock at the time of launch, an impact sensor firing delay timer, a signal for separating between the compartments, and an unignited compartment. Since it has a delay timer that outputs an ignition signal, the ignition signal can be transmitted accurately in a predetermined extended time.

[Brief description of drawings]

FIG. 1 is a cross-sectional view of a chaff spreading cylinder according to a first embodiment of the present invention.

FIG. 2 is a sectional view taken along line BB in FIG. 1 of the chaff spreading cylinder according to the first embodiment of the present invention.

FIG. 3 is a cross-sectional view of a time delay portion with a timer of the chaff spreading cylinder according to the first embodiment of the present invention.

FIG. 4 is a diagram showing a chaff spraying state of the chaff spreading cylinder according to the first embodiment of the present invention.

FIG. 5 is a sectional view of a time extension portion with a timer of the chaff spreading cylinder according to the second embodiment of the present invention.

FIG. 6 is a cross-sectional view of a chaff spreading cylinder according to Embodiment 3 of the present invention.

FIG. 7 is a cross-sectional view of a chaff distributing cylinder according to Embodiment 4 of the present invention.

FIG. 8 is a cross-sectional view of a conventional chaff spreading cylinder.

9 is a cross-sectional view taken along the line AA of FIG. 8 of a conventional chaff spreading cylinder.

FIG. 10 is a cross-sectional view of an extended portion of a conventional chaff spreading cylinder.

FIG. 11 is a diagram showing a chaff sprinkling state of a conventional chaff sprinkling cylinder.

[Explanation of symbols]

1 bottom pedestal, 2 extended part, 3 detonating wire, 4 inner cylinder, 5
Outer cylinder, 6a-6d chaff, 7a-7c partition plate, 8
Detonator, 9 ignition pin, 9a Ignition pin before pressurization, 9b
Ignition pin after pressurization, 10 prolongation agent, 11 propulsion rocket, 12a 1st propulsion rocket, 12b 2nd propulsion rocket, 12c 3rd propulsion rocket, 13 timer delay part, 14 disconnection part, 15a 1st chaff spray cylinder , 15b
2nd chaff spreading barrel, 15c 3rd chaff spreading barrel, 16
Impact sensor, 17 delay timer, 18 detonator firing delay timer, 19 first stage spray cylinder, second stage chaff spray cylinder disconnect and second propulsion rocket ignition delay timer, 20 chaff spray cylinder, 21 chaff spray cylinder.

Claims (5)

[Claims] 1. A chaff spraying cylinder for storing chaff and spraying the chaff in the air, the spraying barrel being divided into sections, each of which is provided with a propulsion rocket. A chaff spray tube characterized by spraying in the air. 2. The chaff sprinkling cylinder according to claim 1, wherein each section has a time extension part with a timer at the bottom of the sprinkling cylinder. 3. A delay unit with a timer, a detonator having a built-in ignition pin, a delay agent that ignites by the pin and burns for a predetermined time, an impact sensor that detects a shock at the time of launch, and a delay timer that sets a delay time. The chaff sprinkling tube according to claim 2, further comprising: 4. The chaff spray cylinder according to claim 3, wherein the delay timer outputs a signal for separating the sections and an ignition signal for the unfired sections. 5. A delay unit with a timer, an impact sensor for detecting impact at the time of firing, a delay timer for firing a detonating wire, a delay timer for outputting a signal for separating between compartments, and an ignition signal for an unfired compartment. The chaff sprinkling cylinder according to claim 2, characterized by comprising: