JP2024040084A - Safety devices and flying vehicles equipped with safety devices - Google Patents

Abstract

[Problem] To provide a safety device with a lighter actuator than conventional devices even when the weight of a parachute is increased, and an aircraft equipped with said safety device. [Solution] A safety device 100 includes an actuator 1, a projectile 16 that is projected in one direction by the operation of the actuator 1, a cylindrical storage lid 18 with a bottom that stores the actuator 1 and the projectile 16, and a substantially disk-shaped bottom 21 that closes the open end of the storage lid 18. The actuator 1 includes a second sliding member 10 that is in contact with the other end of the first sliding member 18d in the initial state, a cylinder 14 that stores the second sliding member 10 and is provided with a stopper 13 that projects the first sliding member 18d outward when activated to stop the second sliding member 10, a base 2 to which one end of the cylinder 14 is fixed by crimping and is attached via a hole 25 in the center of the bottom 21, and a gas generator 17 as a power source that moves the second sliding member 10 within the cylinder 14. [Selected Figure] Figure 1

Description

The present invention relates to a safety device for ejecting a projectile such as a parachute or a paraglider, and a flying vehicle equipped with the safety device.

BACKGROUND ART In recent years, with the development of autonomous control technology and flight control technology, the industrial use of flying vehicles with multiple rotary wings called, for example, drones is accelerating. For example, a drone flies by rotating multiple rotor blades simultaneously in a well-balanced manner, ascending and descending by increasing or decreasing the rotation speed of the rotor blades, and moving forward or backward by tilting the aircraft by increasing or decreasing the rotation speed of the rotor blades. This can be achieved by The number of such flying vehicles is expected to expand worldwide in the future.

On the other hand, the risk of falling accidents of flying vehicles as described above is considered dangerous, and this is hindering the widespread use of flying vehicles. In order to reduce the risk of such falling accidents, parachute devices for flying vehicles are being commercialized as safety devices.

For example, as an example of the above-mentioned parachute safety device, the following Patent Document 1 is publicly known. This safety device injects a parachute by activating an actuator inside the container and sliding a piston (sliding member).

US Patent No. 10202198

A safety device such as that disclosed in Patent Document 1 requires driving force to eject not only the piston but also the parachute. However, safety devices that have actuators that require such driving force need to increase the driving force of the actuator according to the weight of the parachute when the size of the parachute increases, and the weight of the actuator is heavy. It tends to happen easily.

SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide a safety device that can reduce the weight of an actuator compared to a conventional one even if the weight of a parachute increases, and a flying object equipped with the safety device.

(1) The safety device according to the present invention includes a container having a top plate portion, side portions, and a bottom portion, a cylindrical cylinder having an opening on the top plate side, and the top plate portion. a first sliding member having one end connected to the cylinder, or provided within the cylinder such that one end abuts against the top plate portion when sliding inside the cylinder during operation; a second sliding member that is provided so as to be in contact with the other end of the first sliding member and is capable of sliding within the cylinder; 1. A power source that generates a driving force for ejecting the top plate part through a sliding member, an actuator provided at the bottom part, and an injectable object accommodated in the container. A stopper for stopping movement of the second sliding member is provided at the opening of the cylinder, and the stopper has an opening through which the first sliding member can slide. It is characterized by In addition, "one end is connected to the top plate part" means that when one end of the first sliding member is connected to the top plate part, the top plate part and the first sliding member are integrally molded. Including cases where

(2) In the safety device of (1) above, it is preferable that the top plate portion and the side portions are a bottomed cylindrical member that is integrally connected or integrally molded.

(3) As another aspect, the safety device of (1) above may be a bottomed cylindrical member in which the side portion and the bottom portion are integrally connected or integrally molded.

(4) A flying vehicle according to the present invention includes an aircraft body, a safety device according to any one of (1) to (3) above, which is coupled to the aircraft body, and which is coupled to the aircraft body to propel the aircraft. a propulsion mechanism that causes
It is characterized by having the following.

According to the present invention, it is possible to provide a safety device that can reduce the weight of an actuator compared to a conventional one even if the weight of a parachute increases, and a flying object equipped with the safety device.

1 is a sectional view showing an initial state of a safety device according to an embodiment of the present invention. (a) is a plan view of the safety device of FIG. 1, and (b) is a perspective view of the safety device of FIG. 1. FIG. 2 is an enlarged view of a part of the safety device in FIG. 1; FIG. 2 is a diagram showing an example of an aircraft equipped with the safety device of FIG. 1; FIG. 2 is a sectional view showing a state in which the safety device of FIG. 1 is in operation. FIG. 2 is a diagram showing a state after the safety device of FIG. 1 is activated. FIG. 7 is a partially enlarged view for explaining a first sliding member and a top plate portion of a safety device according to a modification of the embodiment of the present invention.

A safety device and a flying object according to embodiments of the present invention will be described below with reference to FIGS. 1 to 6. Note that FIG. 1 is also a cross-sectional view taken along the line AA of the safety device shown in FIG. 2(a).

As shown in FIG. 1, the safety device 100 includes an actuator 1, a projectile 16 that is ejected in one direction (in FIG. It includes a cylindrical storage lid 18 (bottomed cylindrical member) and a substantially disc-shaped bottom 21 that closes the open end of the storage lid 18. Note that the storage lid 18 and the bottom portion 21 constitute a container. Moreover, in this embodiment, the projectile 16 is a parachute or a paraglider.

The actuator 1 accommodates the second sliding member 10 and the second sliding member 10 that is in contact with the other end of the first sliding member 18d in an initial state, and moves the first sliding member 18d outward during operation. A cylinder 14 is provided with a stopper 13 for stopping the second sliding member 10 by injection in the upward direction in FIG. The cylinder 14 includes a base 2 (squib holder) that is attached via a squib holder 25, and a gas generator (such as a micro gas generator) 17 as a power source for moving the second sliding member 10 within the cylinder 14.

The base 2 includes a substantially cylindrical member 2A that holds a gas generator 17 that generates power for sliding the second sliding member 10 on the cylinder 14 side, and a substantially cylindrical member 2A on the side opposite to the cylinder 14 side. A flange portion 2B is provided.

The flange portion 2B includes a plurality of holes 2a used for attachment to the bottom portion 21, a plurality of fixing holes (not shown) used for attachment to a fuselage 31 of a flying object 30 described later, and a gas generator. An insertion port 2c used for inserting a current-carrying connector (not shown) into the lower electrode 17b of the electrode 17, and is processed into a substantially U-shaped horseshoe shape (not shown). It is. A female thread is cut in the inner wall of the hole 2a, into which a bolt 28, which will be described later, is screwed. In addition, a female thread is cut on the inner wall of the fixing hole (not shown), and a bolt (not shown) is screwed into the aircraft 30 (to be described later) from the aircraft 31 side, and the base 2 is connected to the aircraft 31. It can be fixed to.

The second sliding member 10 is a disc-shaped member having an annular groove 10a provided in the circumferential direction on the side thereof, and is made of metal such as aluminum or an alloy. Further, the diameter of the second sliding member 10 is formed to be larger than the diameter of the opening of the stopper 13. That is, the stopper 13 has a stopper function for the second sliding member 10 during operation. Note that the diameter of the first sliding member 18d is smaller than the diameter of the opening of the stopper 13, so that it can slide through the stopper 13.

A sealing member 11 such as an O-ring is provided in the groove portion 10a in the circumferential direction.

As shown in FIG. 3, the bottom part 21 has a cylindrical protrusion 21a extending from the edge toward the accommodation lid 18, and a position opposite to the protrusion 21a to sandwich the open end of the accommodation lid 18. A receiving member 21b provided so as to protrude toward the accommodation lid 18 side. Furthermore, a reinforcing member 21e for reinforcing the bottom portion 21 is provided on the inside of the bottom surface of the bottom portion 21.

The protruding portion 21a has a second through hole 21c extending toward the center of the bottom portion 21, as shown in FIG. Further, on the outside of the protrusion 21a, as shown in FIGS. 2 and 3, there is a cylindrical protrusion that communicates with a first through hole 18b1, which will be described later, and that includes a peripheral wall portion that surrounds the outer periphery of the head portion 22a. 21f is formed. Thereby, it is possible to prevent the pin member 22 from being pulled out and the bottom portion 21 being opened by inserting a nail puller, a flathead screwdriver, or the like. In addition, by inserting the pin member 22 into the second through hole 21c and the first through hole 18b1, which will be described later, an engagement mechanism is configured to engage the open end of the storage lid 18 and the protrusion 21a. . Here, the protrusion 21a has a cylindrical shape, but it may be a protrusion (such as a protrusion) that is provided to face the receiving member 21b and has the second through hole 21c, and does not necessarily have a cylindrical shape. It doesn't have to be.

The receiving member 21b has a second through hole 21d extending toward the center of the bottom portion 21, as shown in FIG. The second through hole 21d receives the tip of the pin member 22 (the tip of the pin member 22 is inserted) when the pin member 22 is inserted into the second through hole 21c and the first through hole 18b1. Therefore, the fixation between the open end of the storage lid 18 and the bottom 21 can be made more robust.

As shown in FIG. 3, the pin member 22 is provided with a head portion 22a having a larger diameter than the second through hole 21c, and one end of the head portion 22a. It has a rod-shaped portion 22b that is inserted and fitted into the through hole 21d. Note that the pin member 22 is provided with a locking portion (not shown) that prevents the pin member 22 from coming off after being inserted into the first through hole 18b1, the second through hole 21c, and the second through hole 21d before operation. There is. Specific examples of such pin members 22 include brush clip pins, trim clip pins, etc., but are not limited to these. Any type of locking part may be used as long as it has a locking part (including one with a relatively high frictional force on the surface of the rod-shaped part 22b) that prevents it from coming off later. Here, in this embodiment, as shown in FIG. 2(a), a pair of pin members 22 are provided so as to face each other in the vertical direction of the page, but the invention is not limited to this. For example, another pair of pin members 22 may be provided to face each other in the left-right direction of the drawing.

The reinforcing member 21e is a substantially disk-shaped member with a hole 21g (see FIG. 1) formed in the center, and supports the projectile 16 while reinforcing the bottom surface of the bottom 21 and protects it from the bolts 28. It is also used to. Note that the reinforcing member 21e does not necessarily have to be a disk-shaped member and may have any configuration as long as it supports the injection object 16 and protects it from the bolt 28.

As shown in FIGS. 1 and 2, the storage lid 18 includes a substantially disc-shaped top plate part 18a, a cylindrical side part 18b, a disc part 18c, and an elongated cylindrical first sliding member 18d. It is a substantially cylindrical member with a bottom. The top plate portion 18a has a central hole portion 18a1 (see FIG. 1) that is closed by a disk portion 18c, and a plurality of hole portions 18a2 (see FIG. 2) provided around the hole portion 18a1 and communicating with the outside. ), and is formed at the upper end of the side portion 18b.

As shown in FIG. 3, the side portion 18b has a first through hole 18b1 and a breakable portion 18b2 near the opening end. The breakable portion 18b2 is a portion that breaks when a predetermined force or more is applied to the first through hole 18b1 in a downward direction in the plane of FIG. 3 .

The disk portion 18c is integrally molded with the first sliding member 18d, and is fixed to the storage lid 18 with multiple sets of bolts 23 and nuts 24, as shown in FIGS. 1 and 2.

The first sliding member 18d is integrally molded with the disk portion 18c, with its upper end connected to the disk portion 18c. Moreover, the first sliding member 18d is hollow halfway from the lower end, and the weight of the first sliding member 18d is reduced compared to a case where the hollow is not formed.

Here, materials for forming the disk portion 18c and the first sliding member 18d include resins such as polycarbonate, polyoxymethylene, polyamide, ABS resin (acrylonitrile, butadiene, styrene copolymer resin), steel materials ( SS400, S45C, etc.), metals such as aluminum, alloys, etc., and these materials are selected and used depending on the required strength.

Note that the disk portion 18c and the first sliding member 18d are replaced by another member (for example, the disk portion 18c and the first sliding member 18d is made of a metal (such as iron), an alloy, or a composite reinforced member (such as fiber reinforced plastic); other parts of the storage lid 18 are made of resin, etc.), and the second sliding member 10 is made of the first sliding member 18d. By using a member that has the impact strength to withstand the impact when it collides with the housing lid 18, the parts other than the disc part 18c of the storage lid 18 are made of a material that has the necessary minimum strength (for example, a strength that can protect the projectile 16 until it is activated). ), the weight of the storage lid 18 can be reduced.

The gas generator 17 is press-fitted into the lower open end of the cylinder 14 and is disposed below the second sliding member 10 .

As the gas generator 17, only an igniter may be used, or a gas generator including an igniter and a gas generating agent may be used. Further, a hybrid type or stored type gas generator may be used, which uses a gunpowder type igniter to rupture the sealing plate of a small gas cylinder and discharge the internal gas to the outside. In this case, nonflammable gas such as argon, helium, nitrogen, carbon dioxide, or a mixture thereof can be used as the pressurized gas in the gas cylinder. Further, in order to reliably propel the second sliding member 10 when the pressurized gas is released, the gas generator may be equipped with a heating element made of a gas generating composition, a thermite composition, or the like.

The projectile 16 is folded and accommodated between the inner surface of the storage lid 18 and the inner surface of the bottom portion 21, for example, so as to surround the outer surface of the cylinder 14. Note that one end of connecting members 41 and 42 (see FIGS. 5 and 6), which are first connecting members, is connected to a part of the injection object 16, and the other end of the connecting members 41 and 42 is It is connected to the inside of the lid 18 (for example, it is fastened to a hook or hole (not shown) provided at a location other than the position where the first sliding member 18d is connected in the disc portion 18c). Further, one end of a connecting member 43 (see FIG. 6), which is a second connecting member, is connected to another part of the injection object 16, and the other end of the connecting member 43 is connected to the second sliding member 10. It is connected to the. Here, one end of the connecting member 43 may be connected to the bottom 21 or a payload (for example, a "flying object", "baggage", "a measuring device for measuring an environment such as in the air or under the sea", etc.). Alternatively, the connecting member 43 may be a plurality of connecting members.

Here, when the connecting members 41 and 42 are tied to the disc part 18c, the disc part 18c is made of a material (metal (such as iron), alloy, or By using a composite reinforcing member (such as fiber-reinforced plastic), the parts other than the disc part 18c of the storage lid 18 can be made only to have the minimum necessary strength (for example, strength enough to protect the projectile 16 until it is activated). This makes it possible to reduce the weight of the storage lid 18. By adjusting the lengths of the connecting members 41 and 42 and/or the output of the actuator 1, it is possible to determine how long after the injection of the storage lid 18 the injected object 16 can be pulled out or controlled.

In the above configuration, when the gas generator 17 is activated when the aircraft on which the safety device 100 is mounted falls, for example, the second slider 17 is activated from the initial state shown in FIG. 1 due to the pressure of the gas generated by the activation. The moving member 10 is propelled upwardly within the cylinder 14. At this time, the storage lid 18 including the first sliding member 18d is pushed up. As a result, the breakable portion 18b2 of the storage lid 18 is broken and the open end of the storage lid 18 is opened, and the storage lid 18 is removed from the bottom 21, and the storage lid 18 connects one end of the connecting members 41 and 42. It is ejected upward while being pulled up. Subsequently, as shown in FIG. 5, when tension is applied to the connecting members 41 and 42, the projectile 16 is pulled up and ejected toward the storage lid 18. As shown in FIG. 6, after the injection material 16 is expanded, the bottom portion 21 is suspended by the injection material 16 via the connecting member 43, the second sliding member 10, and the cylinder 14.

Note that, as shown in FIG. 4, the safety device 100 is connected to the fuselage 31 of the aircraft 30 from the fuselage 31 side via a fixing hole (not shown) in the base 2 with a bolt (not shown). Fixed. Therefore, the aircraft 30 includes a fuselage 31, a safety device 100 coupled to the fuselage 31, one or more propulsion mechanisms (such as propellers) 32 coupled to the fuselage 31 and propelling the fuselage 31, and a fuselage 31 and a plurality of leg portions 33 provided at the lower part of the leg portion 31.

According to the safety device 100 configured as described above, there is no need to increase the driving force of the actuator 1 in accordance with the weight of the projectile object 16, such as when the size of the projectile object 16 such as a parachute increases. In other words, even if the weight of the injection object 16 increases, the driving force of the actuator 1 can be selected depending on the size and weight of the top plate portion 18a and side portions 18b, so the actuator 1 can be made lighter than conventional ones. The safety device 100 can be made into a

Further, according to the safety device 100 having the above configuration, the movement of the second sliding member 10 is stopped at the stopper 13 of the cylinder 14. However, for example, the lid of the container and the sliding member (for example, the first sliding member 18d and the second sliding member 10 are integrally molded) are separated, and the lid is separated from the sliding member. In the configuration in which the sliding member is used to push up, it is necessary to stop the entire sliding member at the hole in the cylinder. That is, according to the safety device 100 configured as described above, it is only necessary to stop the second sliding member 10 (only a part of the sliding member), so that the impact force related to stopping is smaller than that of the conventional art. Therefore, within an appropriate range, there is no problem in terms of strength even if the strength of the actuator 1 is lowered than before. That is, for example, by making the thickness of the cylinder 14 thinner than the conventional one within an appropriate range, the actuator 1 can be made lighter than the conventional one.

Furthermore, if the impact force can be reduced as described above, it is possible to reduce the impact not only on the flying vehicle to which the safety device is attached, but also on attachment members such as attachment bands for attaching the safety device.

Furthermore, since the loss of ejection energy can be reduced, when the gas generator is used as the driving force, the projectile can be ejected with a smaller amount of explosives.

In addition, since the projectile 16 such as a parachute is a soft body (such as a film-like member), if it is injected with a short stroke, the projectile 16 will conventionally absorb the driving force of the gas generator 17, It could not be used effectively. However, according to the safety device 100 having the above configuration, the ejected object 16 can be ejected by being pulled out by the ejected storage lid 18 (rigid body). That is, even with a short stroke, the driving force of the gas generator 17 is transmitted to the storage lid 18 without loss, and the ejected object 16 is pulled up by the momentum of the ejected storage lid 18, so the driving force can be used effectively. I can do it. Therefore, even if the stroke of the actuator 1 is shortened, the projectile 16 can be sufficiently ejected, so that the safety device 100 can be made smaller and lighter than before. In particular, since the total length of the actuator 1 can be made shorter than before, the overall shape of the container can be made flatter than before. As a result, when the safety device 100 is mounted on the flying object 30, the center of gravity becomes more stable than before, and air resistance during flight can be reduced.

Further, according to the safety device 100 having the above configuration, since the storage lid 18 is ejected before the injection object 16 is ejected, sliding resistance of the injection object 16 with respect to the storage lid 18 does not occur. Therefore, reduction in the injection speed of the injection object 16 can be prevented.

Further, according to the safety device 100 having the above configuration, since the flange portion 2B of the base 2 is provided outside the bottom portion 21, the base 2 can be directly attached to the fuselage 31 of the aircraft 30. As a result, the recoil during operation is directly applied to the fuselage 31 rather than via the bottom 21, but since the influence on the bottom 21 during operation can be reduced, the base 2 The strength of the bottom portion 21 can be reduced compared to the case where the bottom portion 21 is provided inside the bottom portion. In other words, the strength of the bottom part 21 can be safely reduced compared to before (for example, as a design in which the thickness of the bottom part 21 is reduced to a safe predetermined thickness), and the bottom part 21 as a whole can be improved while maintaining the same safety as before. It can be made lighter than before.

Further, it is possible to obtain the flying object 30 equipped with the safety device 100 configured as described above.

Although the embodiments of the present invention have been described above based on the drawings, the specific configuration is not limited to these embodiments. The scope of the present invention is indicated by the claims rather than the description of the embodiments described above, and includes all changes within the meaning and range equivalent to the claims. For example, the present invention includes the following modifications.

For example, as shown in the partially enlarged views of FIGS. 7(a) and 7(b), the disk portion and the first sliding member may be separate members. This will be explained in detail below. In addition, in the following modified examples, the symbols having the same last two digits are the same, so the explanation may be omitted. Also, parts that are not particularly explained are the same as those in the above embodiment, so the explanation may be omitted.

FIG. 7A shows a disk portion 118c and a first sliding member 118d having a flange portion at the end on the disk portion 118c side. By fastening and fixing the flange portion of the first sliding member 118d to the disk portion 118c with screws 130, the disk portion 118c and the first sliding member 118d are connected and integrated. Thereby, it is possible to achieve the same effects as the above embodiment.

FIG. 7B shows a disk portion 218c and a first sliding member 218d having a flange portion at the end on the side of the disk portion 218c. By adhesively fixing the flange portion of the first sliding member 218d to the disk portion 218c with an adhesive layer 240, the disk portion 218c and the first sliding member 218d are connected and integrated. Thereby, it is possible to achieve the same effects as the above embodiment.

Further, in the embodiment described above, the disk portion 18c and the first sliding member 18d are integrally molded, but the present invention is not limited to this. For example, the disk part and the first sliding member are separated, and the upper end of the first sliding member is provided in contact with the disk part, and the upper end of the first sliding member is pushed up by the second sliding member during operation. When the first sliding member slides inside the cylinder, the upper end of the first sliding member may abut against a disk portion (top plate portion), and the top plate portion may be ejected. . At this time, it is preferable that the first sliding member is connected to other members such as the cylinder, the second sliding member, and the payload using a connecting member such as a string.

Further, the stopper 13 of the above embodiment can be of any size and shape that allows the first sliding member 18d to slide through it and that can stop the movement of the second sliding member 10. It may be something like this. For example, instead of forming an annular shape by diameter reduction processing (crimping, etc.) as shown in Fig. 1, a member protruding toward the radial center on the inner wall near the opening of a cylindrical cylinder (for example, an annular shape or a plurality of protruding members). Moreover, instead of the cylinder 14, a hole having a diameter large enough to allow the first sliding member to slide through and to stop the second sliding member is provided at the bottom of the bottomed cylindrical cylinder. A cylindrical member with a bottom may be used.

Further, in the above embodiment, the storage lid 18 is shown in which the top plate part 18a including the disk part 18c and the side parts 18b are integrally connected, but instead of this, for example, the top plate part and the side parts are connected. It may be separated. In this case, a bottomed cylindrical member whose side parts and a bottom part are integrally molded is used as a container, and a top plate part is used as a lid part of the container. 1 sliding member may be injected.

Further, in the above embodiment, the hole 18a2 is formed in the storage lid 18, but in order to ensure waterproofness, the hole 18a2 may not be formed. Even in this case, the storage lid 18 and the bottom 21 will separate immediately after activation, allowing outside air to flow in, and the inside of the container made up of the storage lid 18 and the bottom 21 will not become under negative pressure during activation. , there is no need to form an air intake port on the storage lid 18 or the bottom 21.

Further, in the storage lid 18 of the above embodiment, the disk portion 18c, which is a separate member, is attached to close the hole 18a1 of the top plate portion 18a, but it may be formed integrally with the same member. good. At this time, in order to achieve the same effect as the disc part 18c of the above embodiment, the strength (impact strength) of the part is increased by making the part corresponding to the disc part 18c thicker than other parts. It may be strengthened to some degree.

In the first connecting member of the above embodiment, there are two connecting members 41 and 42, but there may be one or three or more connecting members. Furthermore, the first connecting member of the above embodiment can be connected to any position of the housing lid 18, the projectile 16, or the payload, as long as the storage lid 18 and the projectile 16 are smoothly injected and deployed. It's okay. Further, the second connecting member of the above embodiment may be connected to any position of the projectile 16 or the payload as long as the projectile 16 is smoothly injected and deployed.

Alternatively, the inner wall (peripheral wall portion) of the cylindrical protrusion 21f may be brought into contact with the head portion 22a by pressing inward from the outside of the cylindrical protrusion 21f of the embodiment described above, and the head portion 22a may be caulked and fixed. This can prevent the head portion 22a from coming off and scattering to the outside during operation.

Furthermore, a resin that functions as an adhesive is filled between the head portion 22a and the inner wall (peripheral wall portion) of the cylindrical projection portion 21f in the above embodiment and is solidified to bond the head portion 22a and the cylindrical projection portion 21f. It may be fixed. This can prevent the head portion 22a from coming off and scattering to the outside during operation.

Further, the head portion 22a and the cylindrical protrusion portion 21f, which have been caulked and fixed, may be further adhesively fixed with resin. Thereby, it is possible to further prevent the head portion 22a from coming off and scattering to the outside during operation.

Moreover, a snap-fit type locking mechanism may be used instead of the engaging mechanism of the above embodiment. Examples of the locking mechanism include (a) although not shown, a recess provided on the inner wall of the open end of the storage lid, and a convexity provided on the outer wall of the protrusion protruding from the bottom inside the storage lid. (b) Although not shown, a convex part provided on the inner wall side of the open end of the storage lid, and a protrusion part protruded from the bottom inside the storage lid on the outer wall side. (c) Although not shown, a protrusion at the bottom larger than the diameter of the storage lid (the same as in the above embodiment except that the second through hole 21c is not present) (d) Although not shown, the diameter of the storage lid A recess provided on the inner wall side of the larger bottom protrusion (same as the above embodiment except that there is no second through hole 21c) and a recess provided on the outer wall side of the open end of the storage lid. An example of this is one in which a raised part is engaged with a raised part. Note that the protrusion here may be a continuous annular protrusion or an independent bar-shaped protrusion. Further, the recess here may be an annular groove when the protrusion is an annular protrusion, and may be an annular groove or an independent recess when the protrusion is an independent bar-shaped protrusion.

Further, in the embodiment described above, a part of the base 2 was configured to be located outside the storage lid 18, but the entire base 2 was configured to be located inside the storage lid 18. You can leave it there.

Further, in the above embodiment, a gas generator is used as a power source, but the configuration is limited as long as it is possible to apply a driving force to the sliding member to propel the sliding member inside the cylinder. Instead, for example, an elastic body such as a spring or pressure from a gas cylinder may be used.

Further, in the above embodiment, the housing lid 18 is formed in a cylindrical shape, but is not limited to this, and may be formed in other shapes such as a square cylinder.

Further, in the above embodiment, when a parachute or a paraglider is employed as the projectile, the parachute or paraglider may be packed. Note that the packing is configured to be torn or peeled off during operation.

Further, in the above embodiment, a parachute or a paraglider is used as the projectile, but the projectile is not limited to this, and may include a lift generating member. Examples of the lift force generating member include a parafoil, a Rogalo type parachute, a single surface type parachute, an airplane wing, a propeller, and a balloon. Further, when the lift generating member has a control line, it is desirable that the safety device includes a steering mechanism that can change the inclination angle of the ejected lift generating member using the control line. This steering mechanism includes, for example, a plurality of reels that respectively wind a plurality of control lines connected to a lift generating member, and a motor that powers these reels. By winding or unwinding the line, the lift generating member can be pulled or loosened as appropriate.

Moreover, instead of a parachute or a paraglider, a flying vehicle equipped with a safety device capable of ejecting a net may be used. As a result, if the net is ejected toward the hook or protrusion at the right time, the flying object can be caught on the hook or protrusion. As a result, it is possible to prevent the flying object from falling and colliding with the ground. Moreover, instead of a parachute or a paraglider, a device capable of ejecting medicines, luggage, etc. may be used.

In addition, the safety device is capable of injecting a deflated or folded floating ring (float) together with a drive mechanism (such as an expansion device including a gas generator, etc.) using an actuator, and inflating and deploying the floating ring using the drive mechanism. It may also be a flying vehicle equipped with This can prevent the flying object from being submerged in water, and can also serve as a marker for the recovery location in the event that the flying object crashes.

In addition, the actuator can inject a deflated or folded float and parachute together with a drive mechanism (such as an expansion device including a gas generator), and the drive mechanism can deploy the float and parachute. It may also be an aircraft equipped with safety equipment. This can reduce the falling speed of the flying object when it crashes, prevent the flying object from being submerged in water, and also serve as a mark for the recovery location when the flying object crashes.

In addition, the parachute is injected together with a drive mechanism (such as a cutting device equipped with a drive unit) by the actuator, and after the parachute is deployed, one of the plurality of connecting members connecting the parachute and the flying object is connected by the drive mechanism. After that, the center of gravity of the aircraft is shifted and it falls sideways.Then, the airbag device installed on the falling side of the aircraft is used to reduce the impact of impact with the ground. It may also be an aircraft equipped with a safety device that allows for safety.

Additionally, an actuator can be used to inject a so-called paramotor along with a drive mechanism (including drive parts such as a power source), and after the parachute or paraglider is fully deployed, the drive mechanism can drive the motor to rotate the propeller. It may also be a flying vehicle equipped with safety equipment. This prevents the parachute or paraglider from becoming tangled with the propeller. Note that a paramotor is a parachute or a paraglider whose harness is powered by a motor (propeller rotating machine, etc.) to obtain thrust and enable flight.

In addition, an actuator is used to eject a sound generating device along with a driving mechanism (including driving parts such as a power source), and the driving mechanism activates the sound generating device when the aircraft crashes, thereby alerting the surroundings of danger. It may also be a flying vehicle equipped with the device.

In addition, the actuator can eject a lighting device (flashlight, etc.) together with a drive mechanism (including drive parts such as power supplies), and the drive mechanism can activate the lighting device when the aircraft crashes, alerting the surroundings of danger. It may also be a flying vehicle equipped with possible safety devices.

In addition, the actuator can eject a fire extinguisher along with a drive mechanism (including drive parts such as power supplies), and the drive mechanism can activate the fire extinguisher when the aircraft crashes, spraying extinguishing agent on the aircraft body and surrounding area. The aircraft may also be equipped with safety equipment.

The system also includes a safety device in which an actuator injects a parachute-equipped load (e.g., expensive equipment) that has been loaded in advance so that it can be ejected, together with a drive mechanism, and the drive mechanism deploys the parachute of the parachute-equipped load. It may also be used as a flying object. Thereby, the parachute-equipped load can be intensively protected.

In addition, the actuator injects a load with an airbag device (for example, expensive equipment) that has been installed in advance so that it can be injected, together with a drive mechanism (such as an expansion device including a gas generator), and the drive mechanism The aircraft may be equipped with a safety device that inflates and deploys an airbag of a payload with a bag device. Thereby, it is possible to intensively protect the loaded object with the airbag device.

In addition, the actuator injects the distress signal transmitting device together with a drive mechanism (including a drive unit such as a power source), and the drive mechanism activates the distress signal transmitting device when the aircraft crashes, thereby transmitting the distress signal to the outside. It may also be a flying vehicle equipped with a safety device that allows for safety. This makes it possible to pinpoint the crash point if the aircraft crashes.

In addition, the actuator injects a black box with a parachute (such as a flight recorder) together with a drive mechanism (such as an expansion device including a gas generator, etc.), and the drive mechanism deploys the parachute of the black box with a parachute when the aircraft crashes. It may also be a flying vehicle equipped with the device. Thereby, the black box with a parachute can be intensively protected. As a result, flight data can be protected.

1 Actuator 2 Base 2A Cylindrical member 2B Flange portion 2a, 18a1, 18a2, 21g, 25 Hole portion 2c Insertion port 10 Second sliding member 10a Groove portion 11 Seal member 13 Stopper 14 Cylinder 16 Injectable object 17 Gas generator 17b Electrode 18 Storage lid 18a Top plate part 18b Side part 18b1 First through hole 18b2 Breakable part 18c, 118c, 218c Disc part 18d, 118d, 218d First sliding member 21 Bottom part 21a Projecting part 21b Receiving member 21c, 21d Second penetration Hole 21e Reinforcing member 21f Cylindrical protrusion 22 Pin member 22a Head portion 22b Rod portions 23, 28 Bolts 24 Nuts 30 Aircraft 31 Airframe 33 Legs 41, 42, 43 Connecting member 100 Safety device 130 Screws 240 Adhesive layer

Claims (4)

A container having a top plate portion, side portions, and a bottom portion;
A cylindrical cylinder having an opening on the top plate side, and one end of which is connected to the top plate, or one end abuts against the top plate when sliding inside the cylinder during operation. a first sliding member provided within the cylinder, and a second sliding member provided so as to be in contact with the other end of the first sliding member in an initial state and capable of sliding within the cylinder. and a power source that generates a driving force that causes the second sliding member to slide toward the top plate portion and eject the top plate portion via the first sliding member, and the bottom portion an actuator provided in the
a projectile contained in the container;
Equipped with
A stopper for stopping movement of the second sliding member is provided at the opening of the cylinder,
The safety device is characterized in that the stopper has an opening through which the first sliding member can slide. The safety device according to claim 1, wherein the top plate portion and the side portion are a bottomed cylindrical member that is integrally connected or integrally molded. The safety device according to claim 1, wherein the side portion and the bottom portion are a bottomed cylindrical member that is integrally connected or integrally molded. The aircraft and
The safety device according to any one of claims 1 to 3, which is coupled to the aircraft body;
a propulsion mechanism coupled to the aircraft body and propelling the aircraft body;
A flying object characterized by comprising:

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