JPH09315394A - Soft landing device for flying body - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reduce the speed of a flying body put out of navigation so as to land softly and safely by providing storage chambers opened at the time of emergency, a plurality of balloons stored in a releasable state, helium gas cylinders built in the balloons, and expansion initiating devices. SOLUTION: Storage chambers 4A, 4B for respectively folded balloons 5A, 5B are formed at a fitting part front top part of a main wing 2 of an airframe 1 of an aircraft, and a fitting part front top part of a vertical tail assembly 3. The storage chambers 4A, 4B are provided with opening/closing doors 4a, 4b that can be opened at the time of emergency. A spherical balloon 5a and a parachute-shaped balloon 5b are provided with expansion initiating devices 7 for expanding the balloons 5A, 5B. Helium gas cylinders 8 are plurally disposed in specified positions in the spherical balloon 5a and parachute-shaped balloon 5b, and contained helium gas is released to expand the spherical balloon 5a and parachute-shaped balloon 5b at a stroke, thus imparting buoyancy.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an aircraft soft landing apparatus for emergency soft landing when an aircraft such as an aircraft becomes incapable of flight.

[0002]

In the past, aircraft and the like have been
If you cannot fly due to engine trouble or damage to the aircraft during flight, you will only be able to crash, resulting in a tragic accident.

It is an object of the invention according to claim 1 of the present invention to solve the above problems and provide a soft landing device for an air vehicle that decelerates an air vehicle that has become incapable of flight and safely performs a soft landing. .

[0004]

In order to achieve the above object, the invention according to claim 1 of the present invention is a vehicle body of a flying vehicle, a storage chamber which can be opened freely in an emergency, and the storage chamber is folded and discharged into the storage chamber. It is equipped with a plurality of balloons that can be stored and connected to the airframe through a plurality of cords, a helium gas cylinder built into the balloon to inflate these balloons, and an explosive detonator that can destroy it. .

Further, in the above construction, the balloon is composed of a spherical balloon which is inflated initially and a parachute balloon which is inflated after deceleration of the airframe by the spherical balloon.

Further, in the above construction, the expansion detonator uses a laser detonator for irradiating the explosive powder with the laser beam generated by the laser generator through the optical fiber.

According to the above construction, in an emergency when the flight becomes impossible, the containment chamber is opened to discharge the balloon, and at the same time, the balloon is inflated by the expansion detonator to reduce the flight speed and the descending speed of the airframe. , This allows the aircraft to be soft landed on the sea or on the ground.

Further, first, a spherical balloon having a relatively low air resistance is inflated to decelerate, and then a parachute balloon having a large air resistance is inflated to reduce a load on the balloon and the airframe and a bad influence on passengers. , The speed of the airframe can be reduced more effectively.

Further, since the laser beam is used for the detonator, it is possible to avoid malfunction due to lightning as in a detonator using a conventional squib, and it is possible to further improve safety.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a soft landing gear for an aircraft according to the present invention will be described with reference to FIGS.

Storage chambers 4A and 4B for storing folded balloons 5A and 5B are formed in the front top part of the mounting part of the main wing 2 of the aircraft body 1 and in the front top part of the mounting part of the vertical stabilizer 3, respectively. Openable doors 4a, 4 that can be opened in an emergency
b are provided respectively. The balloons 5A and 5B have substantially the same structure, and each is composed of a spherical balloon 5a and a parachute balloon 5b integrally formed so as to surround the upper half of the spherical balloon 5a. The body 1 and a plurality of cords 6A and 6B are connected respectively.

As shown in FIG. 2, the spherical balloon 5a and the parachute balloon 5b have the balloons 5A and 5B.
Is provided with an expansion detonator 7 for inflating
The expansion detonator 7 includes a helium gas cylinder 8 arranged in the balloons 5A and 5B, and these helium gas cylinders 8
The laser detonators 9A and 9B for destroying the laser detonator and the laser light supply device 10 for detonating the laser detonators 9A and 9B.

The helium gas cylinder 8 is a spherical balloon 5.
a and a plurality of parachute balloons 5b are arranged at predetermined positions, and the helium gas contained therein is released to inflate the spherical balloons 5a and parachute balloons 5b at a stretch to provide buoyancy. Further, each helium gas cylinder 8 is provided with a laser detonator 9A, 9B for discharging the helium gas at a dash, and the laser light supply device 10 emits laser light generated from a laser generator 10a in the machine body 11. , Main optical fiber 10b, spectroscope 10c, branch optical fiber 10d
It is introduced into the laser detonators 9A and 9B via the, and is configured to ignite a predetermined amount of detonating explosive and destroy the helium gas cylinder 8. A quartz-based YAG pulse laser with a wavelength of 1.06 μm is used for the laser light at this time, and the maximum rated output of the laser generator 10a is 50 J /
Since it is P (pulse) and the minimum ignition energy of the laser detonator 9 is about 0.2 J, it is possible to ignite a plurality of laser detonators 9A and 9B at the same time with one laser generator 10a. The main optical fiber 10b and the branch optical fiber 10d may be arranged along the cords 6A and 6B, or may be included in the cords 6A and 6B, or provided separately from the cords 6A and 6B. You can also

Although a general detonator and an electric wire for detonation are usually used to break such a cylinder, here, laser detonators 9A and 9A are used in order to prevent malfunction due to lightning or the like.
B is used.

In the above structure, when the aircraft becomes incapable of flying due to engine trouble or damage to the airframe during flight, and the engine is stopped or gliding, emergency operation from the cockpit causes opening / closing of the storage chambers 4A, 4B. Door 4a,
4b is opened, the folded balloons 5A and 5B are emitted to the outside, and at the same time, the laser light supply device 10 is activated to ignite the laser detonator 9A of the spherical balloon 5a among the balloons 5A and 5B, and the helium gas cylinder 8 Is destroyed and the spherical balloon 5a is expanded. First, the spherical balloon 5a having low air resistance is inflated, so that the gliding speed and the descent speed of the body 1 are gradually reduced. Then, when the speed drops to a certain speed, the laser beam supply device 10 is activated again, the laser detonator 9B of the parachute balloon 5b is ignited, the helium gas cylinder 8 is destroyed and expanded, and the airframe 1 has a large air resistance and buoyancy. Is added, the gliding speed and descent speed of the aircraft 1 are further reduced, and in this state, the landing is softly landed on the sea surface or the ground. As a result, a serious accident such as the aircraft 11 colliding with the sea surface or the ground surface at high speed is avoided, and it is possible to save many human lives.

According to the above embodiment, in an emergency when the aircraft is incapable of flying, the containment chambers 4A, 4B are opened to discharge the balloons 5A, 5B, and at the same time, the laser detonator 9 destroys the helium gas cylinder 8. By inflating the balloons 5A and 5B, the flight speed and the descent speed of the airframe 1 are reduced, whereby the airframe can be softly landed on the sea or on the ground. Further, first, the spherical balloon 5a having a relatively small air resistance is inflated to decelerate, and then the parachute balloon 5b having a large air resistance is inflated to prevent the load on the balloons 5A and 5B and the airframe 1 and adverse effects on passengers. By making it smaller, the speed of the machine body 1 can be more effectively reduced. Further, since the laser detonator 9 which is ignited by the laser beam is used for the detonator, it is possible to avoid malfunction due to lightning as in a detonator using a conventional squib, and it is possible to further improve safety.

In the above embodiment, the aircraft is an aircraft, but it may be a small Cessna aircraft, a simple plane, a helicopter or the like.

[0018]

As described above, according to the first aspect of the present invention, in an emergency in which flight is impossible, the containment chamber is opened to discharge the balloon, and at the same time the balloon is inflated by the detonator. The aircraft's flight speed and descent speed are reduced, which allows the aircraft to soft land on the sea or on the ground.

Further, first, a spherical balloon having a relatively low air resistance is inflated to decelerate, and then a parachute balloon having a large air resistance is inflated to reduce a load on the balloon and the airframe and a bad influence on passengers. , The speed of the airframe can be reduced more effectively.

Further, since the laser beam is used for the detonator, it is possible to avoid malfunction caused by lightning, which is different from the conventional detonator using a squib, and it is possible to further improve safety.

[Brief description of drawings]

FIG. 1 is an explanatory view showing an embodiment of a soft landing gear for an aircraft according to the present invention.

FIG. 2 is a configuration diagram showing an expansion detonator of the soft landing gear.

[Explanation of symbols]

 1 Aircraft 4A, 4B Storage room 4a, 4b Open / close doors 5A, 5B Balloons 5a Spherical balloons 5b Parachute balloons 6A, 6B Rope body 7 Expansion detonator 8 Helium gas cylinders 9A, 9B Laser detonator 10 Laser light supply device

Claims (3)

[Claims] Claims: 1. An airframe of a flying body, a storage room that can be opened in an emergency, a plurality of balloons that are folded and stored in the storage room so that they can be discharged, and that are connected to the airframe through a plurality of cords, and these. A soft landing device for an air vehicle, comprising an expansion detonator capable of destroying a helium gas cylinder incorporated in the balloon to inflate the balloon. 2. The soft landing apparatus for an aircraft according to claim 1, wherein the balloon is composed of a spherical balloon that is initially expanded and a parachute balloon that is expanded after deceleration of the airframe by the spherical balloon. . 3. The soft landing device for a flying vehicle according to claim 1, wherein the expansion detonator uses a laser detonator for irradiating the explosive powder with a laser beam generated by a laser generator through an optical fiber.