JPH0743239B2 - Attitude control device for scatter type land mines - Google Patents

Description

TECHNICAL FIELD The present invention relates to a posture control device after landing in a landmine of a type sprayed from above a destination.

[Conventional technology]

Published in what is known as this kind of attitude control device Military Technology MIL TECH8 / 83 (Netherlands, WEHR
& WISSEN company, published in August 1983),
This will be outlined with reference to FIG.

FIG. 1A shows a state immediately before landing of land mines 1 sprayed from above the destination using a rocket, an aircraft, a projector, etc., 2 is a parachute for control, and 3 is a sling string. The suspension cord is cut at the same time as landing by a wire cutter or the like which operates in response to a landing signal (see FIG. 2B). Reference numeral 4 denotes a plurality of legs arranged along the side surface of the shell of the land mine 1, the lower end of which is hinge-coupled to the shell, and is rotated approximately 90 ° by a spring means that operates in response to a landing signal to radiate. Open legs.

Therefore, the parachute 2 receives a side wind on the way of falling, or bounces at the time of falling, as shown in FIG.
Even if the land mine rolls over, as shown in FIG. 5, the leg 4 is caused to open as shown in FIG.

〔problem〕

By the way, such a conventional control device cannot fulfill its intended function depending on the environment of the destination. That is, for example, when a strong crosswind is received immediately before landing, the land mine 1 lands almost sideways, so the impact may cause damage to the legs or the leg opening mechanism, or if the ground is soft, the legs may slip into the ground and raise the legs. Is an incomplete problem.

[Problems of the Invention]

In view of the above problems, an object of the present invention is to obtain a control device that can perform a desired function without being influenced by the environment at the landing point.

〔Constitution〕

The present invention achieves the above object by configuring the control device as follows. In other words, the shell of a land mine is attached by folding a pouch that covers at least one of the side and top of the shell.

The envelope is formed so that the maximum diameter portion when expanded is located above the center of gravity of the land mine.

 The shell is provided with the following means.

 Landmine landing detection means.

Gas releasing means for releasing high pressure gas in response to a signal from the landing detecting means.

A gas passage for guiding the released high-pressure gas into the air bubble.

[Action]

The attitude control device of the present invention having the above configuration operates as follows. That is, when a land mine lands, the parachute is separated in the same manner as in the conventional case, and the gas release means is operated to release high pressure gas in response to the signal from the landing detection means, and this high pressure gas passes through the gas passage. Introduced into the pouch. Therefore, this envelope expands in a form that encloses the side surface of the mine shell, or the side surface and the upper surface, and the maximum diameter part at the time of expansion is located above the center of gravity of the land mine. As a result, the land mines stabilize in their intended position with the bottom surface down, as a result of rising up like a priestess.

〔Example〕

 <Embodiment 1> FIGS. 1 and 2 show an embodiment of the present invention.

In FIG. 1, 11 is a land mine, 12 is its shell, the shell 12 is a cylindrical side wall 13, a substantially flat plate-shaped canopy integral with this side wall, and is screwed to the lower end of the side wall 13 (14 ) And the bottom lid 15 which is formed. Reference numeral 20 denotes a combustion gas generator as the high-pressure gas discharge means, and a flat cylindrical case composed of an upper plate 21 and a side plate 22 is fitted (16) to the bottom cover 15 to form a void inside, An igniter chamber 25, a gas generating agent chamber 26, and a coolant chamber 27 are sequentially formed from the center by partitioning the void space concentrically with cylindrical partition walls 23 and 24, and these chambers are divided into partition walls 23 and 24. A large number of through holes 30 are formed in the side plate 22, and a large number of through holes 30 are also formed in the side plate 22. Reference numeral 31 denotes an impact sensor as the landing detecting means, which is fixed to the bottom lid 15 and arranged in the igniter chamber 2. The impact detector is a known fuze type that senses the landing impact of a land mine and activates a firing pin to fire a detonator. 32
Is an igniter directly connected to the impact sensor 31 and has a charge such as black powder incorporated therein for igniting upon receipt of a landing signal, that is, an ignition signal of the detonator. 33 is a pellet of a gas generant filled in the gas generant chamber 26, for example, an azide pellet such as sodium azide, 34 is a coolant filled in the coolant chamber 27, for example, ceramic sand grains, and 35 and 36 are the sand grains. It is a screen such as a wire mesh for holding.

Reference numeral 40 denotes an annular chamber surrounding the perforated area of the through hole 30 in the case side plate 22, 41 denotes a large number of through holes extending from this annular chamber to the side surface of the shell 12, and the gas is provided between the annular chamber 40 and the through hole 41. Forming a passage. Reference numeral 42 is an "O" ring for gas sealing the annular chamber and the inside of the land mine.

Reference numeral 45 denotes a shell, which is covered from the upper surface to the side surface of the shell body 12, and then a ring-shaped metal plate 46 is applied to the peripheral edge of the lower opening and fixed to the bottom lid 15 with a screw 47. Is used as a core and the shape is retained by the band 48. 49 is an eye hook attached to the band 48, and 50 is a hanger hooked on this eye hook, and the hanging string 52 of the parachute is bound to the eye 51 formed on this hanger.

As shown in FIGS. 2 (C) and 2 (D), the air bag 45 of this embodiment has a substantially spherical shape when inflated, and the maximum radial portion AA in the vertical direction is greater than the center of gravity G of the land mine 11 The diameter is set so that it is also located above. Kifu 45 is made of a slightly breathable base cloth, or has a very small capacity vent valve.

Fig. 2 (A) shows the state immediately before landing of landmine 11, and Fig. 2 (B).
Shows the state when rebounding after landing. That is, when the land mine 11 lands, the impact sensor 31 operates as described above to ignite the charge of the igniter 32. Therefore,
The flame is injected into the gas generating agent chamber 26 through the through hole 28 and ignites the gas generating agent pellet 33, so that the pellet 33 is rapidly burned to generate a high-pressure combustion gas. This high-pressure combustion gas passes through the layer of the coolant 34 from the through hole 29, is cooled, is then discharged from the through hole 30 into the annular chamber 40, and is introduced into the air bubble 45 through the through hole 41.

Therefore, the air baffle 45 expands into a sphere, and in the process of breaking the bun 48, the parachute is separated. FIG. 2 (C) shows an unstable state in which the structure of the land mine 11 and the entanglement 45 has been inverted due to the rebound, and the structure rolls on the ground surface from this state ((( The stable posture shown in D) stands still, and then the gas in which the pneumothorax is inflated permeates the base cloth or diffuses little by little through the vent valve, so that the pneumothorax gradually shrinks. Do it.

Example 2 FIGS. 3 and 4 show another example.

In FIG. 3, 111 is a land mine, 112 is its shell, and shell 11
2 includes a side wall 113 and a bottom cover 115 screwed to this side wall as in the first embodiment, and a canopy 114 has a central portion formed into a dome 114a shape similar to the conventional one (FIG. 5). It is bulging. Reference numeral 120 denotes a high-pressure gas discharger as a high-pressure gas discharge means, which is a side plate having an upper plate 121 and a plurality of through holes 122 formed around it.
A case made of 123 is fitted to the bottom lid 115 to form a void therein, and the side wall 113 has an annular chamber 116 surrounding the perforation area of the through hole 122 and an outer peripheral surface of the side wall 113 from the annular chamber. Through hole 117
Is formed and the annular chamber is gas-sealed using the "O" ring 118. This structure is almost the same as that of the first embodiment.

124 is a cylinder that is placed in the void and is filled with, for example, nitrogen gas under high pressure, 125 and 125 are valves attached to both sides of the cylinder, 126 and 126 are known explosive actuated pushers that control the opening operation of the valve 125, 127 is an impact switch as the landing detection means, and 128 is a battery.

When the impact switch 127 is closed due to the landing impact of a land mine, a current flows from the battery 128 to the ignition ball of the pusher 126 to ignite the charge of the pusher, and the combustion gas pressure pushes out the plunger to open the valve. Open 125. Therefore, the high-pressure gas with the lid pressure applied to the cylinder 124 is ejected to the void and is discharged from the through hole 122.

130 is a cheerful, which encloses the side surface of the shell body 112, and is fixed to the canopy 114 and the bottom lid 115 with screws 133 by applying the dowels 131 and 132 to the peripheral edges of the upper and lower openings, respectively.
The side wall 113 was folded using the core as a core, and the band 1 was used as in Example 1.
The shape of the parachute is secured by using the cord 34, and the strap 136 of the parachute is connected to the band through the hanger 135.

As shown in FIGS. 4 (C) and 4 (D), the baffle 130 of this embodiment has an annular shape in which the side wall 13 of the shell body is used as a core to enclose the side surface of the shell, and the top portion thereof is located near the top. The maximum diameter portion B is formed in the uppermost portion and the portion B is located above the center of gravity G ′ of the land mine 111. FIG. 4 (A) shows the state immediately before landing, and FIG. 4 (B) shows the state of rebounding immediately after landing. That is, when the high-pressure gas discharger 120 operates as described above by the landing impact, the discharge gas is introduced into the air bladder 130 via the gas passage formed by the annular chamber 116 and the through hole 117,
Inflate the pouch. In this process, the parachute is separated as in the case of Example 1. When the structure of the land mine 111 and the carousel 130 rolls over as shown in FIG. 7C, the standing motion is performed as in the case of the first embodiment, and when it is inverted, it rolls over while being supported by the dome 114a. Because it will be a posture,
In each case, the land mine 111 is raised as shown in FIG.

〔The invention's effect〕

As described above, the present invention can control the sprayed land mine to the desired attitude regardless of these environmental conditions, regardless of the landing attitude of the land mine and the landing ground is soft. The mine installation efficiency can be improved.

In the example, the separation mechanism is simplified because the parachute is separated by utilizing the expansion of the pellicle, and the expanded gas of the pellicle is degassed little by little. The knot has the advantage that it temporarily shrinks and becomes inconspicuous.

[Brief description of drawings]

FIG. 1 is a sectional view showing an essential part of an embodiment of the present invention, FIG. 2 is an operation explanatory view of the embodiment shown in FIG. 1, and FIG. 3 is a sectional view showing an essential part of another embodiment of the present invention. FIG. 4 is a diagram for explaining the operation of the embodiment shown in FIG. 3, and FIG. 5 is a diagram for explaining the conventional device and its operation. 11 …… Landmine 12 …… Shell 20 …… Combustion gas generator as gas release means 31 …… Impact detector as landing detection means 32 …… Igniter 33 …… Gas generant pellets 34 …… Coolant 40,41 …… Annular chamber and through-hole as gas passage 45 …… Airbag 48 …… Airbag shape retaining band AA …… Maximum diameter of airbag G …… Center of gravity of landmine 111 ...... Minemine 112 ...... Shell 120 ...... High-pressure gas discharger 124 as gas discharge means 124 ...... Cylinder 125 ...... Valve 126 ...... Powder-operated pusher 127 ...... Impact switch 128 as landing detection means 128 ...... Battery 116,117 …… Annular chamber and through-hole as gas passage 130 …… Baffle 134 …… Baffle retaining band B …… Maximum radius of the buff G ′ …… Center of gravity of landmine

Claims (1)

[Claims] 1. A mine shell is provided with a fold of a gauze that encloses at least a side surface of the side surface and an upper surface of the shell, and the maximum diameter portion when the peal is expanded. The air bladder is formed so as to be located above the center of gravity of the land mine, while the shell body has landing detection means for the land mine, and gas release means for emitting high pressure gas in response to the signal from the detection means.
A posture control device for a spray-type land mine, which is provided with a gas passage for guiding the discharged high-pressure gas into the air bag.