JPH0616315Y2 - Rocket for transporting explosive block for minefield treatment - Google Patents

Description

[Detailed Description of the Invention] [Industrial field of application] The present invention relates to a transport rocket in which a connecting body of explosive blocks for minefield treatment is housed in a barrel and the connecting body is drawn backward in the sky. .

[Conventional technology]

Conventionally, as this type of transport rocket, for example, one as shown in FIG. 3 is known (Japanese Patent Laid-Open No. 60-152).
See Japanese Patent Publication No. 900).

In this transport rocket 1, a series of a connecting body 3 of explosive blocks 2 connected in series by connecting ropes (not shown) and a parachute 4 attached to the rear part thereof is housed in a barrel 5. The rear lid 7 is fastened with the explosive type breaking bolt 6.
Reference numeral 8 is a connecting rope for connecting the front portion of the connecting body 3 and the inside of the frontal region 9 and 10 is a steel rope for tightening the connecting body 3 to each other.
Reference numeral 1 is a rocket motor of the transport rocket 1.

Then, as shown in FIG. 4, the structure housed in the rocket 1 is conveyed to a position above the minefield by the rocket 1, and when the bolt 6 is broken here, the rear lid 7 is detached and the parachute 4 is released. Give an umbrella. As a result, the parachute 4
Pulls the connecting body 3 out of the barrel 5 and decelerates it. After that, the tightening of the connecting body 3 by the steel rope 10 is released, each explosive block 2 becomes free, and the parachute 4 brakes to develop into a continuous string, and in this state, it descends while stalling. Then, when each explosive block 2 lands, it is detonated all at once and the landmines are detonated.

〔problem〕

By the way, in such a conventional transport rocket, it takes a considerable time from the opening of the parachute 4 to the complete withdrawal of the connecting body 3 from the barrel 5. In particular, the transport rocket 1 has a low launch angle. When fired at, there was a problem that each block would land before it was fully deployed. The reason will be described below.

As shown in FIG. 4, when the connecting body 3 is rapidly pulled out, the internal pressure in the barrel 5 is rapidly reduced by the piston action, so that the connecting body 3 generates a force to be pulled back into the barrel 5. Is. In order to complete the discharge in a short time against this force, the parachute 4 may have a large diameter, but there is a limit because the storage space is limited.

[Means for solving problems]

The technical means of the present invention for solving such a problem is to open a communication hole communicating with the outside air side in front of the housing of the connector.

[Action]

According to this means, when the connecting body is suddenly pulled out, the outside air is sucked from the communication hole by the piston action, so that a large pressure difference does not occur between the inside and outside of the barrel, and as a result, the connecting body is pulled out. Generation of force to pull back in is suppressed.

〔Example〕

Hereinafter, a carrier rocket according to an embodiment of the present invention will be described with reference to the accompanying drawings.

As shown in FIG. 1, the explosive block 21 mounted on the transfer rocket R is formed by loading the cylindrical can body 21a with the explosive 21b and additionally providing a detonator (not shown). (Hereinafter referred to as blocks) are connected in series by using the connecting rope 22, and then they are butted against each other and tightened by the rope 23 to form an integral block connecting body 24. 25 is a latch of the rope 23 fixed to the last block, 26 is an L-shaped locking piece attached to the front end of the rope, 27 is a locking tool engaged with these locking pieces, 2
Reference numeral 8 denotes a connecting line connecting the locking tool and the frontmost block, and when the locking tool 27 is pulled out forward, the latch 26 is released and the tightening is released. Reference numeral 29 is a parachute, which is normally folded, and its hanging string 29a is connected to the last block 21.

On the other hand, in the transport rocket R, 31 is a barrel, 32 is a frontal head, 33 is, for example, four rocket motors mounted on the barrel 31, 34 is a tail, and 35 is a rear lid.
After connecting 7 and the frontal head 32 by connecting cords 36, a series of constituents of the block connecting body 24 and the folded parachute 29 are housed in the barrel 31, and the rear lid 35 is fitted with the explosive type breaking bolt 37. It is fastened to the cylinder 31.

Reference numeral 40 denotes a communication hole according to the embodiment, which is the block connection body 24.
The front head 32, which is located in front of the storage portion 41, is opened along the machine axis direction and communicates with the outside air side. Also, the communication hole 4
0 may be opened in the barrel 31 if it is the front of the storage section 41.

Therefore, according to the rocket R, the above-mentioned structure housed in the rocket R is transported to a position above the minefield, where the bolt 37
When is destroyed, the rear lid 35 is detached and the parachute 29 is released to open the umbrella. Therefore, this parachute has its sling 2
The block connecting body 24 is pulled out of the barrel 31 and decelerated by 9a.

In this case, when the block connecting body 24 is suddenly pulled out,
In response to this, the outside air is sucked from the communication hole 40, so that the generation of the force for pulling back the block connecting body 24 is suppressed as described above.

Further, in the embodiment, since the communication hole 40 is opened in the axial direction, outside air is pushed by the ram pressure during the flight of the transport rocket, and the internal pressure of the barrel 31 rises. As a result, the pressure difference between the inside and the outside of the barrel is further reduced, and the above-described suppressing action is promoted. Next, since the connecting cord 36 is stretched and the locking tool 27 is pulled out from the locking piece 26, the tightening of the connecting body is released, and each block becomes free.

Steps I and II in FIG. 2 show the state at this time. After that, the rocket R continues to fly due to inertia and the parachute 29 brakes, so that the connecting ropes 22 are extended one after another, and as shown in step III in the figure, each block 21 is pulled by the rocket R to form a continuous string. Deploy and descend in this state while stalling. Stage IV shows a state of the deployed system immediately before landing, and stage V shows a state of the system landed on the minefield M. When each block 21 lands, it is detonated all at once and the landmines are detonated.

[Effect of device]

As described above, according to the present invention, the resistance force generated by the piston action when pulling out the connecting body can be reduced. Therefore, when the parachutes of the same size are used, it is necessary to pull out the connecting body. The time is shortened and the block can be fully expanded even when fired at a lower angle of incidence.

Further, if the time required for pulling out the connecting body is the same, there is an effect that the parachute can be made small.

[Brief description of drawings]

FIG. 1 is a sectional view showing a carrier rocket according to an embodiment of the present invention, FIG. 2 is a diagram showing the action of the carrier rocket, and FIG. 3 is a sectional view showing an example of a conventional carrier rocket. The figure shows the operation. R: Transport rocket 21: Explosive block 24: Block connection body 31: Body tube 40: Communication hole 41: Storage section

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Creator Ken Takeshita 1-18-32 A-205 Fuchinobe, Sagamihara City, Kanagawa Prefecture (72) Creator Hidetaka Kasai 2 Takaracho, Kanagawa-ku, Yokohama City, Kanagawa Nissan Motor Co., Ltd. (56 ) Reference JP 60-152900 (JP, A) JP 59-74500 (JP, A)

Claims (1)

[Scope of utility model registration request] 1. A transport rocket in which a connecting body of explosive blocks is housed in a barrel, and the connecting body is pulled out backward in the sky, and communicates with the outside air side in front of the housing portion of the connecting body. A rocket for transporting explosive blocks for minefield disposal, which has a communication hole.