JP2021066372A - parachute - Google Patents

Abstract

To provide a parachute that can lands a flying body in an appropriate landing point at an appropriate descent rate.SOLUTION: A parachute includes: a wing-shaped horizontal movement type parachute deployed from a flying body to horizontally move the flying body; and a mushroom-shaped vertical descent-type parachute deployed from the horizontal movement type parachute after horizontal movement of the flying body and causing the flying body to vertically descend.SELECTED DRAWING: Figure 1

Description

The present invention relates to a parachute deployed from an air vehicle.

A parachute that deploys when an aircraft such as an aircraft lands is known, and a parachute that can change the horizontal resistance and vertical resistance by expanding the canopy of the ram air type parachute (for example). , Patent Document 1).

U.S. Patent Application Publication No. 2004/0016851

The parachute has a certain level of horizontal movement ability and vertical descent ability by changing the horizontal resistance force and the vertical resistance force (descent rate), but the ability is insufficient. For example, during an emergency landing of an air vehicle, it is necessary not only to avoid obstacles and land at an appropriate landing point, but also to land at an optimum descent rate, which requires higher horizontal movement ability and vertical descent ability.

The present invention has been made to solve such a problem, and to provide a parachute capable of landing an air vehicle at an appropriate landing point and landing at an optimum descent rate. Is the main purpose.

One aspect of the present invention for achieving the above object is
A wing-shaped horizontally moving parachute that deploys from an air vehicle and moves the air vehicle horizontally,
A mushroom-shaped vertical parachute that deploys from the horizontal parachute after the horizontal movement and vertically lowers the flying object,
To prepare
It is a parachute characterized by this.
In this aspect,
The horizontally moving parachute is configured to be separable after the horizontal movement.
The vertical descent parachute may be configured to deploy between the divided horizontally moving parachutes.
In this aspect,
The horizontally moving parachute may have a lock portion for suppressing the division.
In this aspect,
The lock portion connects a connecting line connecting the left and right suspension lines in order to maintain a constant distance between the left and right suspension lines of the horizontally moving parachute, and connecting and releasing the connecting line. It may have a mechanism and.
In this aspect,
A perforated break portion is formed in the horizontally moving parachute, and the horizontally moving parachute may be divided by breaking the broken portion.
In this aspect,
The vertical descent parachute is stored on the periphery of the horizontally moving parachute.
By deploying the vertically descending parachute to the outside of the horizontally moving parachute, the horizontally moving parachute and the vertically descending parachute may be integrally formed into a mushroom shape to form a vertically descending parachute.
In this aspect,
The vertical descent parachute may be configured to deploy next to the horizontally moving parachute.
In this aspect,
The vertical descent parachute may be configured to deploy in front of the horizontally moving parachute.
One aspect of the present invention for achieving the above object is
A step of deploying a wing-shaped horizontally moving parachute that deploys from an air vehicle and moves the air vehicle horizontally,
A step of deploying from the horizontally moving parachute after the horizontal movement and deploying a mushroom-shaped vertically descending parachute that vertically descends the flying object.
including,
It may be a parachute deployment method characterized by this.

According to the present invention, it is possible to provide a parachute capable of landing an air vehicle at an appropriate landing point and landing at an optimum descent rate.

It is a figure which shows the development of the parachute which concerns on Embodiment 1 of this invention. It is a flowchart which shows the flow of the parachute deployment method which concerns on Embodiment 1 of this invention. It is a schematic diagram which shows the schematic structure of the lock part of the horizontally movable parachute which concerns on Embodiment 2 of this invention. It is a block diagram which shows the schematic system structure of the parachute which concerns on Embodiment 2 of this invention. It is a schematic side view which shows the parachute which concerns on Embodiment 3 of this invention. It is a schematic side view which shows the parachute which concerns on Embodiment 4 of this invention.

Embodiment 1
Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a diagram showing the development of a parachute according to the first embodiment of the present invention. The parachute 1 according to the first embodiment is attached to the flying object 100 in advance.

As shown in FIG. 1A, the flying object 100 is, for example, an arbitrary moving body flying in the air such as a flying car, an aircraft, a helicopter, a vertical takeoff and landing type aircraft, and a drone. For example, at the time of emergency landing of the aircraft body 100, the parachute 1 deploys from the aircraft body 100 and safely lands the aircraft body 1 as shown in FIGS. 1 (a) and 1 (b).

By the way, for example, in the case of an emergency landing of an aircraft, it is important not only to suppress the descent rate of the aircraft and land the aircraft safely, but also to avoid ground housing and land at an appropriate landing point. Become.

On the other hand, the parachute 1 according to the first embodiment is a horizontally moving parachute 2 that horizontally moves the flying object 100 and lands at an appropriate landing point, and a vertically moving parachute 2 that vertically descends the flying object 100 at an optimum descent rate to fly. It is equipped with a vertical descent parachute 3 for safely landing the body 100. As a result, the aircraft 100 can be landed at an appropriate landing point at the time of an emergency landing of the aircraft 100, and can be landed at an optimum descent rate.

As shown in FIG. 1B, the horizontally moving parachute 2 is first deployed from the flying object 100 at the time of an emergency landing of the flying object 100 or the like.

The horizontally movable parachute 2 is configured as, for example, a ram air type parachute. The horizontally moving parachute 2 has a wing-shaped cross section and can move the flying object 100 horizontally. The horizontally movable parachute 2 has excellent gliding performance and control performance.

The left and right ends of the horizontally moving parachute 2 and the air vehicle 100 are connected by, for example, two pairs of suspension lines 4. By pulling the suspension line 4 on the right side, the horizontally movable parachute 2 can be turned to the right. By pulling the suspension line 4 on the left side, the horizontally moving parachute 2 can be turned to the left. The number of suspension lines 4 connecting the horizontally moving parachute 2 and the flying object 100 may be arbitrary.

As shown in FIG. 1 (b), the horizontally movable parachute 2 is configured to be separable. A vertically descending parachute 3 is stored in the central portion of the horizontally moving parachute 2, for example, in a folded state.

The horizontally moving parachute 2 may have, for example, a perforated break portion 21 extending in the front-rear direction in the central portion. As a result, by pulling the left and right suspension lines 4 with a force equal to or greater than a predetermined operating force, the fractured portion 21 can be fractured along the perforation, and the vertical descent type parachute 3 can be easily and surely deployed. be able to.

The vertical descent type parachute 3 has, for example, a mushroom type parachute that vertically lowers the flying object 100 at an optimum descent rate. The vertical descent type parachute 3 is deployed from the horizontally moving type parachute 2 as shown in FIG. 1C after the horizontal movement by the horizontally moving type parachute 2.

The vertical descent parachute 3 is configured to deploy from between the divided horizontally moving parachutes 2. As a result, the vertical descent type parachute 3 can be deployed above the flying object 100, so that the original function of the vertical descent type parachute 3 can be exhibited without any problem.

The horizontally moving parachute 2 that has already been deployed and the vertically descending parachute 3 that has been deployed from the horizontally moving parachute 2 have a function of vertically descending the flying object 100 at an optimum descent rate. May be good.

Next, a method of deploying the parachute according to the first embodiment of the present invention will be described. FIG. 2 is a flowchart showing a flow of a parachute deployment method according to the first embodiment.

The horizontally moving parachute 2 is deployed from the flying object 100 at the time of an emergency landing of the flying object 100 (step S201).

The left and right suspension lines 4 are operated, and the horizontally moving parachute 2 moves to the vicinity of the target landing position (step S202).

The left and right suspension lines 4 are simultaneously pulled with a force equal to or greater than a predetermined operating force (step S203).

The broken portion 21 of the horizontally moving parachute 2 is broken along the perforation, and the vertically descending parachute 3 is deployed from the central portion of the horizontally moving parachute 2 (step S204).

The vertical descent type parachute 3 vertically descends the flying object 100 at an optimum descent rate and lands at the target landing position (step S205).

As described above, the parachute 1 according to the first embodiment is deployed from the flying object 100 and deployed from the wing-shaped horizontally moving parachute 2 that horizontally moves the flying object 100, and the horizontally moving parachute 2 that is horizontally moved and then deployed from the horizontally moving parachute 2. It includes a mushroom-shaped vertical parachute 3 that vertically lowers 100. As a result, the aircraft 100 can be landed at an appropriate landing point at the time of an emergency landing of the aircraft 100, and can be landed at an optimum descent rate.

Embodiment 2
FIG. 3 is a schematic view showing a schematic configuration of a lock portion of a horizontally movable parachute according to the second embodiment. The horizontally moving parachute 2 according to the second embodiment of the present invention may have a lock portion 5 for suppressing an unintended division.

The lock portion 5 has a connecting line 51 that connects the left and right suspension lines 4 of the horizontally movable parachute 2, and a connecting release mechanism 52 provided on the connecting line 51.

The connecting line 51 has a function of maintaining a constant distance between the left and right suspension lines 4 by connecting the left and right suspension lines 4. With this function, the horizontal movement type parachute 2 is suppressed from opening in the left-right direction.

The connection release mechanism 52 has a function of connecting the connection line 51 and releasing the connection. The connection release mechanism 52 is configured as, for example, a hook mechanism in which the hook is hooked to maintain the connection of the connection line 51 while being pulled from both sides, and when the hook is loosened, the hook is released and the connection of the connection line 51 is released. ing.

As a result, when the left and right suspension lines 4 are connected by the connecting line 51, the horizontal movement type parachute 2 is suppressed from opening in the left-right direction by the connecting line 51. Therefore, unintended division of the horizontally moving parachute 2 is suppressed.

On the other hand, if the left and right suspension lines 4 are pulled at the same time, the distance between the left and right suspension lines 4 becomes short and the connecting line 51 loosens. Therefore, the connection releasing mechanism 52 releases the connection of the connecting lines 51. As a result, when the left and right suspension lines 4 are pulled with a force equal to or greater than a predetermined operating force, a large opening force in the left-right direction acts on the broken portion 21 of the horizontally moving parachute 2. By this force, the broken portion 21 is broken, and the vertically descending parachute 3 is deployed from the central portion of the horizontally moving parachute 2.

When the horizontally moving parachute 2 moves in the horizontal direction, only one of the left and right suspension lines 4 is pulled in order to determine the moving direction of the horizontally moving parachute 2 by turning left and right. On the other hand, when the horizontally moving parachute 2 arrives near the target landing position, both the left and right suspension lines 4 are pulled, and the connection release mechanism 52 releases the connection of the connection line 51. Then, the vertical descent type parachute 3 is deployed from the horizontally moving type parachute 2 to perform vertical descent.

In this way, the connection release mechanism 52 is simply configured as the hook mechanism as described above, and the connection line 51 can be disconnected by simply pulling the left and right suspension lines 4, and the vertical descent type can be easily performed. The parachute 3 can be deployed.

The disconnection mechanism 52 is configured as a hook mechanism, but is not limited thereto. The connection / disconnection mechanism 52 may connect and disconnect the connection line using, for example, an electromagnet mechanism, or any mechanism may be applied.

FIG. 4 is a block diagram showing a schematic system configuration of the parachute according to the second embodiment. The left and right suspension lines 4 may be provided with a tension mechanism 6 for pulling each suspension line 4. The tension mechanism 6 includes, for example, a winding mechanism 61 for winding the suspension line 4 and an actuator 62 such as a motor for driving the winding mechanism 61.

The parachute 20 according to the second embodiment includes a left tension mechanism 6 that pulls the left suspension line 4, a right tension mechanism 6 that pulls the right suspension line 4, and a control unit 7 that controls the left and right tension mechanisms. , Is equipped.

The actuators 62 of the left and right tension mechanisms 6 drive the winding mechanism 61 in response to the control signals transmitted from the control unit 7, and pull the left and right suspension lines 4.

The control unit 7 is, for example, a CPU (Central Processing Unit) 71 that performs control processing, arithmetic processing, etc., a ROM (Read Only Memory) or RAM (Random Access Memory) in which control programs, arithmetic programs, etc. executed by the CPU 71 are stored. ), And an interface unit (I / F) 7 that inputs and outputs signals to and from the outside, and so on. The CPU 71, the memory 72, and the interface unit 73 are connected to each other via a data bus or the like.

In the second embodiment, the same parts as those in the first embodiment are designated by the same reference numerals, and detailed description thereof will be omitted.

Embodiment 3
5 (a) and 5 (b) are schematic side views showing a parachute according to the third embodiment of the present invention. In the third embodiment, the vertically descending parachute 32 is stored on the peripheral edge of the horizontally moving parachute 31. By deploying the vertically descending parachute 32 to the outside of the horizontally moving parachute 31, the horizontally moving parachute 31 and the vertically descending parachute 32 are integrally formed into a substantially mushroom shape to form a vertically descending parachute. As described above, by using the horizontally moving parachute 31 as a part of the vertically descending parachute 32, the weight of the entire parachute can be reduced.

As shown in FIG. 5A, for example, the vertically descending parachute 32 is folded and stored on the front peripheral edge and the rear peripheral edge of the horizontally moving parachute 31, respectively.

The vertically descending parachute 32 folded to the front side can be pulled out and unfolded by, for example, pulling a wire or the like. On the other hand, the vertically descending parachute 32 folded to the rear side can be naturally deployed by using, for example, air resistance. The vertical descent parachute 32 on the rear side may also be pulled out and deployed by pulling a wire or the like as on the front side.

As described above, the vertically descending parachute 32 folded on the front peripheral edge and the rear peripheral edge of the horizontally moving parachute 31 is deployed, respectively, and as shown in FIG. 5 (b), the horizontally moving parachute 31 and the vertically descending parachute 31 are deployed. The 32 integrally constitutes a vertical descent parachute.

In the third embodiment, the same parts as those in the first and second embodiments are designated by the same reference numerals, and detailed description thereof will be omitted.

Embodiment 4
6 (a) and 6 (b) are schematic side views showing a parachute according to the fourth embodiment of the present invention. In the fourth embodiment, the vertically descending parachute 42 is configured to deploy next to the horizontally moving parachute 41. As a result, with a simpler configuration, it is possible to land the aircraft 100 at an appropriate landing point and land at an optimum descent rate at the time of an emergency landing of the aircraft 100.

As shown in FIG. 6A, for example, the vertically descending parachute 42 is folded and stored on the front peripheral edge of the horizontally moving parachute 41. The folded vertical descent parachute 42 can be pulled out and unfolded by, for example, pulling a wire or the like.

As shown in FIG. 6B, the vertical descent parachute 42 may be configured to deploy in front of the horizontally moving parachute 41.

In the fourth embodiment, the same parts as those in the first to third embodiments are designated by the same reference numerals, and detailed description thereof will be omitted.

Although some embodiments of the present invention have been described, these embodiments are presented as examples and are not intended to limit the scope of the invention. These novel embodiments can be implemented in various other embodiments, and various omissions, replacements, and changes can be made without departing from the gist of the invention. These embodiments and modifications thereof are included in the scope and gist of the invention, and are also included in the scope of the invention described in the claims and the equivalent scope thereof.

The configurations of the above embodiments 1 to 4 may be arbitrarily combined.
In the above-described first to fourth embodiments, the parachute 1 deployed at the time of an emergency landing of an air vehicle is applied, but the present invention is not limited to this. For example, it may be applied to a parachute worn by a person or the like and used for leisure or the like.

1 parachute, 2 horizontal movement type parachute, 3 vertical descent type parachute, 4 suspension line, 5 lock part, 6 tension mechanism, 7 control part, 21 break part, 31 horizontal movement type parachute, 32 vertical descent type parachute, 41 horizontal movement Type parachute, 42 vertical descent parachute, 51 connection line, 52 disconnection mechanism, 61 take-up mechanism, 62 actuators, 100 flying objects

Claims (1)

A wing-shaped horizontally moving parachute that deploys from an air vehicle and moves the air vehicle horizontally,
A mushroom-shaped vertical parachute that deploys from the horizontal parachute after the horizontal movement and vertically lowers the flying object,
To prepare
A parachute characterized by that.

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