Safety devices, and aircraft equipped with safety devices

Abstract

The present invention provides a safety device that can improve ejection performance, and an aircraft equipped with the safety device. [Solution] The safety device 100 comprises a piston member 10, an actuator 1 having a gas generator 17 that generates a driving force to slide the piston member 10 to one side, a push-up member 15 that supports the injectable 16, and a container 18 that houses at least the piston member 10, the actuator 1, the push-up member 15, and the injectable 16. The push-up member 15 has a hole 26 through which a line 40 (suspension line 41), one end of which is connected to the injectable 16, is inserted, and the injectable is ejected when the piston member 10 slides to one side due to the driving force.

Description

Technical Field

[0001] The present invention relates to a safety device and an aircraft equipped with the safety device.

Background Art

[0002] In recent years, with the development of autonomous control technology and flight control technology, the industrial use of aircraft equipped with a plurality of rotary wings, such as drones, has been accelerating. A drone flies, for example, by simultaneously rotating a plurality of rotary wings in a balanced manner, and ascending and descending are performed by increasing or decreasing the rotational speed of the rotary wings, and forward and backward movement can be achieved by tilting the aircraft through increasing or decreasing the rotational speed of the rotary wings. Such an aircraft is not only used for disaster relief activities, cargo transportation, landscape photography, etc., but also assumed to carry passengers, and is expected to be increasingly used worldwide in the future.

[0003] On the other hand, the risk of a falling accident of the above-described aircraft is regarded as dangerous, which has hindered the popularization of the aircraft. In order to reduce such a risk of a falling accident, etc., safety devices such as a parachute device for an aircraft are being commercialized.

[0004] For example, Patent Document 1 discloses a safety device including an injection part that injects an ejector, a container that encloses the ejector and the injection part, and a line having one end connected to the ejector.

Prior Art Documents

Patent Documents

[0005]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0006] By the way, in a safety device, it is desired to improve injection performance.

[0007] Therefore, the present invention aims to provide a safety device that can improve ejection performance, and an aircraft equipped with the safety device. [Means for solving the problem]

[0008] (1) The safety device according to the present invention comprises a sliding member, an actuator having a power source that generates a driving force to slide the sliding member to one side, a push-up member that supports the injection material, and a container that houses at least the sliding member, the actuator, the push-up member, and the injection material inside, wherein the push-up member has a plurality of holes through which at least two lines connected to the injection material are separated and inserted, and the injection material is ejected by the sliding member sliding to one side due to the driving force.

[0009] (2) In the safety device described in (1) above, the push-up member further has a support portion that extends in a direction intersecting the sliding direction in which the sliding member slides and supports the injection material, and the hole portion is preferably provided in the support portion.

[0010] (3) The aircraft according to the present invention is characterized by comprising an airframe, a safety device according to (1) or (2) above which is coupled to the airframe, and one or more propulsion mechanisms which are coupled to the airframe and propel the airframe. [Effects of the Invention]

[0011] According to the present invention, it is possible to provide a safety device that can improve ejection performance, and an aircraft equipped with the safety device. [Brief explanation of the drawing]

[0012] [Figure 1] This is a cross-sectional view showing a safety device according to an embodiment of the present invention. [Figure 2] This is a cross-sectional view showing the sliding member of the safety device in Figure 1 in a sliding state. [Figure 3]Figure 1 is a cross-sectional view showing the push-up member of the safety device separated from the sliding member. [Figure 4] Figure 1 is a schematic diagram showing the state in which the push-up member of the safety device and the ejected material have been ejected. [Figure 5] Figure 1 is a schematic diagram showing the deployed state of the injection-molded safety device. [Figure 6] Figure 1 is a front view showing an aircraft equipped with safety devices. [Modes for carrying out the invention]

[0013] <Embodiment> Hereinafter, the safety device 100 and the aircraft 30 according to the embodiment of the present invention will be described with reference to Figures 1 to 6.

[0014] As shown in Figure 1, the safety device 100 includes an actuator 1, a push-up member 15 that is pushed up in one direction (upward in Figure 1) by the actuator 1, an injection-molded object 16 that is supported and pushed up by the push-up member 15, a bottomed cylindrical container 18 that houses the actuator 1, the push-up member 15, and the injection-molded object 16, a lid 21 that closes the open end of the container 18, and a line 40 with one end connected to the injection-molded object 16. In this embodiment, the injection-molded object 16 is a parachute or paraglider. A sealing member 60 is provided in the gap between the container 18 and the lid 21 to prevent liquid or dust from entering. Examples of sealing members 60 include any material with waterproof and dustproof functions, such as an O-ring, a hardened resin, or a foam material. As a variation of the sealing member 60, a film-like material may be used to wrap at least the edge of the lid 21 and the side of the container 18.

[0015] The actuator 1 comprises a piston member 10 which is a sliding member; a cylinder 14 which houses the piston member 10 and has a hole 13 for the piston member 10 to protrude outward (upward in Figure 1) when operated; a base 2 (squib holder) to which one end of the cylinder 14 is crimped and fixed, and which is attached via a hole 25 in the center of the bottom of the housing 18; and a gas generator (micro gas generator, etc.) 17 which serves as a power source for moving the piston member 10 inside the cylinder 14.

[0016] The base 2 comprises a substantially cylindrical member 2A that holds a gas generator 17, which generates power to slide the piston member 10, on the cylinder 14 side, and a flange portion 2B provided on the side of the substantially cylindrical member 2A opposite to the cylinder 14 side.

[0017] The flange portion 2B is machined into a roughly U-shaped, roughly horseshoe shape (not shown), and includes a plurality of holes 2a used for attachment to the housing 18, a plurality of fixing holes (not shown) used for attachment to the airframe 31 of the aircraft 30 (described later), and an insertion opening 2c used for inserting a connector 22 for energizing the electrode 17b at the bottom of the gas generator 17. The inner wall of the holes 2a is threaded so that a bolt 28 (described later) can be screwed into it. The inner wall of the fixing holes (not shown) is also threaded so that a bolt (not shown) can be screwed into the aircraft 30 (described later) from the airframe 31 side, thereby fixing the base 2 to the airframe 31.

[0018] The connector 22 includes a main body portion 22a that can be inserted into the substantially cylindrical member 2A through the insertion port 2c, a protruding portion (not shown) that protrudes from the side surface of the lower portion of the main body portion 22a, and a hole portion 22c into which the electrode 17b located within the substantially cylindrical member 2A is inserted. The above-mentioned protruding portion (not shown) is electrically connected to a connector (not shown) connected to an external power source via a wiring (not shown) extending in a direction perpendicular to the insertion direction of the connector 22 (when attached to the base 2, along the radial direction from the center of the base 2). Further, the main body portion 22a is provided with a hole portion 22c inside that is electrically connected to both the electrode 17b and the above-mentioned wiring (not shown) connected to the above-mentioned protruding portion (not shown).

[0019] The piston member 10 has a main body portion 10a having a portion with an outer diameter substantially the same as the inner diameter of the cylinder 14, a rod-shaped portion 10b connected to the main body portion 10a and extending upward and having a smaller diameter than the main body portion 10a, a hole portion 10c provided inside the main body portion 10a and the rod-shaped portion 10b, a female screw portion 10d provided at the upper end portion of the rod-shaped portion 10b, and a groove portion 10e provided in the circumferential direction of the main body portion 10a.

[0020] The rod-shaped portion 10b has a protruding portion 10f that protrudes to one side (the upper side in FIG. 1) of the cylinder 14 in the state before operation. That is, the protruding portion 10f is a portion of the rod-shaped portion 10b that protrudes to one side of the cylinder 14 in the state before operation. Also, at the lower portion of the rod-shaped portion 10b, the tubular member 4 is fitted or loosely fitted in a state where one end portion contacts the main body portion 10a. There may be a gap between the inner wall of the tubular member 4 and the outer wall of the rod-shaped portion 10b, but the gap may be within a range that does not prevent plastic deformation due to substantially uniform compression during the collision described later.

[0021] As shown in Figure 1, the tubular member 4 is held by the holding member 5 at the lower part of the rod-shaped portion 10b, with one end in contact with the main body portion 10a. The tubular member 4 is made of a material that is plastically deformable and has a tensile strength lower than that of the piston member 10 and the stopper member 23 described later (for example, metals such as iron, aluminum, brass, copper, alloys such as stainless steel, resins, etc.). Here, the holding member 5 may be an elastic material such as rubber, or it may be made of the same material as the tubular member 4, and its shape may be ring-shaped or clip-shaped.

[0022] Furthermore, to prevent the tubular member 4 from contacting the inner wall of the cylinder 14, the tubular member 4 and the inner wall of the cylinder 14 are separated by a predetermined distance or more (for example, a distance at which the tubular member 4, which has undergone plastic deformation due to substantially uniform compression upon impact with the stopper member 23, will not come into contact with the inner wall of the cylinder 14). As a result, even if the tubular member 4 undergoes plastic deformation upon impact with the stopper member 23, it will deform without being hindered by the inner wall of the cylinder 14, and the impact on the piston member 10 will be sufficiently mitigated.

[0023] The hole 10c is formed along the central axis from the lower end of the main body 10a to partway along the rod-shaped portion 10b. As a result, the piston member 10 is lighter than when the hole 10c is not formed.

[0024] The female thread portion 10d is formed along the central axis from the tip of the rod-shaped portion 10b (projection portion 10f) up to a certain point. Furthermore, the male thread portion 50b of the bolt member 50, which will be described later, can be screwed into the female thread portion 10d.

[0025] A sealing member 11, such as an O-ring, is provided in the circumferential direction in the groove portion 10e.

[0026] A roughly cylindrical stopper member 23 is provided at the top of the cylinder 14, positioned to surround a portion of the rod-shaped portion 10b of the piston member 10. That is, the rod-shaped portion 10b is inserted through the hole 13 of the stopper member 23.

[0027] The stopper member 23 restricts the movement of the tubular member 4 to the cylinder 14 and has a groove 23a along the outer circumference and a groove 23b along the inner circumference. The groove 23a is used to crimp and fix the other end of the cylinder 14 to the stopper member 23. A sealing member 12, such as an O-ring, is provided in the circumferential direction of the groove 23b.

[0028] The gas generator 17 is press-fitted into the lower open end of the cylinder 14 and is positioned below the main body portion 10a of the piston member 10, which will be described later. Furthermore, a cylindrical member 3 is provided around the cup body 17a of the gas generator 17 to form a predetermined distance between it and the piston member 10.

[0029] The push-up member 15 is made of metal (aluminum or iron, which may be an alloy), resin, or a composite material of resin and metal, CFRP or fiber-reinforced resin, and has a bottomed cylindrical portion 19 that covers a part of the cylinder 14, that is, the outer part of the cylinder 14 excluding the area near the open end on the side where the gas generator 17 is located, and a disc-shaped support portion 20 that is provided as a flange (flange-shaped portion) at the opening of the bottomed cylindrical portion 19 to support the injection material 16.

[0030] The bottomed cylindrical portion 19 has a bottom portion 19a that is roughly flat or roughly columnar (roughly columnar in this embodiment), a hole portion 51 formed on the lid portion 21 side of the bottom portion 19a, a hole portion 52 (second hole portion) with a smaller diameter than the hole portion 51, and a hole portion 53 (first hole portion) that communicates with the hole portion 51 via the hole portion 52 and has a larger diameter than the hole portion 52. The hole portion 51 has a diameter larger than the diameter of the head portion 50a of the bolt member 50. The hole portion 52 has a diameter smaller than the diameter of the head portion 50a and can guide the male threaded portion 50b of the bolt member 50 inserted from the hole portion 51 side to the hole portion 53 side. The hole 53 is substantially the same shape as one end (protruding portion 10f) of the rod-shaped portion 10b, and when one end (protruding portion 10f) of the rod-shaped portion 10b is inserted through the insertion opening 53a provided on the cylinder 14 side of the bottom 19a of the bottomed cylindrical portion 19, it forms a fitting portion in which one end of the rod-shaped portion 10b is slidably fitted.

[0031] The bolt member 50 is an example of a fixing member for fixing the push-up member 15 to the piston member 10. The male threaded portion 50b of the bolt member 50 has threads (not shown) with strength to break when pulled to one side by the push-up member 15 attempting to move to one side due to inertial force, etc., after the piston member 10 has slid to one side (upward in Figure 1) due to the driving force of the gas generator 17, or has a weak portion (not shown) formed to break. The weak portion is, for example, a recess (not shown) such as an annular groove formed in the circumferential direction in the bottom of a valley (not shown) formed between adjacent threads and an inclined portion (not shown) formed between the apex of a thread, and can be any part that will break due to the stress applied during operation. The bolt member 50 is inserted into the protruding portion 10f and the push-up member 15 from one side to the protruding portion 10f and the bottom portion 19a. The bolt member 50 connects the rod-shaped portion 10b and the push-up member 15 by inserting the male threaded portion 50b into the hole 52 from the hole 51 side and screwing it into the female threaded portion 10d of the fitted rod-shaped portion 10b in the hole 53. At this time, one end of the rod-shaped portion 10b is non-circular and is fitted into the hole 53 which is substantially the same shape, so when the bolt member 50 is screwed into the female threaded portion 10d, the rod-shaped portion 10b does not rotate together. Specifically, because the tip of the push-up member 15 and the tip of the piston member 10 are non-circular and fit together, when fastening with the bolt member 50, the push-up member 15 can be rotated while being fixed, and the piston member 10 can be tightened toward the gas generator 17 without rotating together. Furthermore, although the threads of the male threaded portion 50b of the bolt member 50 break during operation as described above, they have sufficient strength so that the male threaded portion is not destroyed when screwed into the female threaded portion 10d of the rod-shaped portion 10b. Here, as an example of modification, instead of the bolt member 50, a brush pin or the like may be used, which can fix the push-up member 15 to the piston member 10 in the initial state and can be disengaged from the female threaded portion 10d by the upward inertial force described above during operation.Furthermore, although this embodiment describes a case where the threads of the male threaded portion 50b of the bolt member 50 break, the threads of the female threaded portion 10d may also be of a strength that breaks during operation, or have a weak portion that breaks during operation, based on the same principle as the breakage of the male threaded portion 50b of the bolt member 50 described above.

[0032] The support portion 20 extends in a direction intersecting the direction in which the piston member 10 slides and supports the injection material 16. In its initial state, the support portion 20 is spaced apart from the inner surface of the bottom of the container 18. The support portion 20 also has a hole 26 to reduce the effect of the negative pressure generated between the bottom of the injection material 16 and the support portion 20 during operation, thereby facilitating the injection of the injection material 16. The outer circumference of the support portion 20 is formed so as not to come into contact with the inside of the container 18. Furthermore, at least one (eight in this embodiment) movement prevention member 27 is provided on the upper surface of the support portion 20 to prevent the bottomed cylindrical portion 19 of the injection material 16 from moving in the circumferential direction.

[0033] The movement prevention members 27 are roughly triangular in shape, made of resin, or a composite material of resin and metal, CFRP, or fiber-reinforced resin, and are arranged in multiples so as to be rotationally symmetrical with respect to the bottomed cylindrical portion 19. Holes 26 are provided between each of these movement prevention members 27. In one modification, only one movement prevention member 27 may be provided. Even in this case, multiple holes 26 are provided in the support portion 20.

[0034] As shown in Figure 1, the bottom of the container 18 is provided with a hole 25 into which the base 2 is inserted, a hole 29a for bolt fastening, and a hole (not shown) that communicates with a fixing hole (not shown) for the flange portion 2B. Furthermore, the bottom of the container 18 has a recessed central section, and this central section and its surrounding area form at least two stepped shapes.

[0035] The opening 25 is closed by fastening a hole 2a, provided in the flange portion 2B of the base 2 located on the outside of the bottom of the container 18, through hole 29a with a bolt 28 from the inside of the container 18. In addition, by reducing the distance between the support portion 20 and the bottom surface inside the container 18, the injection material 16 is prevented from falling onto the bottom surface inside the container 18.

[0036] The ejected material 16 is housed within the containment container 18, between the inner surface of the containment container 18 and the outer surface of the bottomed cylindrical portion 19 of the push-up member 15, for example, surrounding the outer surface of the bottomed cylindrical portion 19. The ejected material 16 is also folded so that its outer surface does not come into contact with the inside of the containment container 18. The ejected material 16 is connected to one end of the line 40, and the other end of the line 40 is connected to the inside of the containment container 18 or to the body 31 of the aircraft 30, which will be described later. As one modification, the ejected material 16 may be folded so that its outer surface comes into contact with the inside of the containment container 18.

[0037] As shown in Figures 2 to 4, line 40 has a plurality of suspension lines 41 and a plurality of connecting lines 42. One end of each of the plurality of suspension lines 41 is connected to the injection material 16. In the safety device 100, at least two of the plurality of suspension lines 41 are inserted into two or more of the plurality of holes 26, as appropriate and as needed, so that the push-up member 15 also acts as a slider (suppressing sudden opening, mitigating the impact load of opening, etc.) and the injection material 16 can be easily deployed. As a result, the push-up member 15 can slide along the plurality of suspension lines 41 inserted into the holes 26. For example, if two of the plurality of suspension lines 41 are used as sliders, it is preferable that one suspension line 41 used for the sliders is inserted into each of the holes 26 that are located symmetrically with respect to the central axis of the piston member 10. Furthermore, for example, if four of the multiple suspension lines 41 are used for the slider, it is preferable that one suspension line 41 used for the slider is inserted through each of the four holes 26, which are located at positions offset by 90° from the central axis of the piston member 10. That is, it is preferable that the suspension lines 41 inserted through each of the holes 26 are located at positions that are rotationally symmetric with respect to the central axis of the piston member 10. The other ends of the multiple suspension lines 41 are gathered together in one place. One end of the multiple connecting lines 42 is gathered together in one place and connected to the other ends of the multiple suspension lines 41. The other ends of each of the multiple connecting lines 42 are fixed to the housing 18. The other ends of each of the multiple connecting lines 42 may also be fixed to the aircraft 30. The lines 40 are housed in the housing 18.

[0038] The gas generator 17 may use only an igniter, or it may be a gas generator equipped with both an igniter and a gas generating agent. Alternatively, a hybrid or stored-type gas generator may be used, which uses a gunpowder-type igniter to break the seal plate in a small gas cylinder and discharge the gas inside to the outside. In this case, the pressurized gas in the gas cylinder can be a non-flammable gas such as argon, helium, nitrogen, or carbon dioxide, or a mixture thereof. Furthermore, to ensure that the piston is reliably propelled when the pressurized gas is released, the gas generator may be equipped with a heating element made of a gas generating agent composition or a thermite composition, etc.

[0039] The injection unit that ejects the material 16 mainly consists of a piston member 10, a cylinder 14, a push-up member 15, a gas generator 17, etc.

[0040] In the configuration described above, when the gas generator 17 is activated when an aircraft 30, for example, on which the safety device 100 is installed, falls, the pressure of the gas generated by the activation causes the piston member 10 to slide upward inside the cylinder 14, the push-up member 15 is propelled upward together with the piston member 10, and the lid 21 is removed. As shown in Figure 2, when the tubular member 4 collides with the stopper member 23 and the upward sliding of the piston member 10 stops, as shown in Figure 3, the push-up member 15 slides upward relative to the piston member 10 due to upward inertial force, etc., causing the threads of the male thread portion 50b of the bolt member 50 or the weak parts provided on each thread to break, as shown in Figure 4, the push-up member 15 is separated from the piston member 10 and ejected, and the ejected material 16 is ejected together with the push-up member 15. As shown in Figure 5, since each of the multiple suspension lines 41 is inserted through the hole 26 of the push-up member 15, it is possible to prevent the push-up member 15 from falling after it separates from the piston member 10, and the push-up member 15 also acts as a slider (suppressing sudden parachute opening, mitigating the impact load of parachute opening, etc.), so that if the projectile 16 is a parachute or paraglider, the projectile 16 can be deployed smoothly.

[0041] As shown in Figure 6, the safety device 100 is connected and fixed to the aircraft body 31 of the aircraft 30 from the aircraft body 31 side by bolts (not shown) via fixing holes (not shown) of the base 2. Therefore, the aircraft 30 comprises an aircraft body 31, a safety device 100 connected to the aircraft body 31, one or more propulsion mechanisms (e.g., propellers, etc.) 32 connected to the aircraft body 31 and propelling the aircraft body 31, and a plurality of legs 33 provided on the lower part of the aircraft body 31.

[0042] Furthermore, since the flange portion 2B of the base 2 is provided on the outside of the bottom of the housing 18, the base 2 can be directly attached to the airframe 31 of the aircraft 30. As a result, the recoil during operation is received directly by the airframe 31, rather than through the housing 18, but the impact on the housing 18 during operation can be reduced, so the strength of the bottom of the housing 18 can be reduced compared to when the base 2 is provided inside the housing 18. In other words, the strength of the bottom of the housing 18 can be safely reduced compared to before (for example, by designing it so that the thickness of the bottom of the housing 18 is reduced to a safe predetermined thickness), and the housing 18 as a whole can be made lighter than before while ensuring the same level of safety as before. In addition, since a step is provided on the bottom surface of the housing 18, the strength of the bottom surface of the housing 18 can be strengthened compared to a flat surface without a step.

[0043] In the above configuration, the push-up member 15 and the slider are shared, and the push-up member 15 performs the role of the slider, eliminating the need to provide a separate slider and reducing the number of parts. Therefore, costs can be reduced, and the safety device 100 can be made lighter, thus suppressing a decrease in the flight performance of the safety device 100. In addition, since there is no need to provide a separate slider, the ejection part can be made lighter, improving ejection performance. Furthermore, when the tubular member 4 collides with the stopper member 23 and the upward sliding of the piston member 10 stops, the push-up member 15 separates from the piston member 10 and is ejected, and the ejected material 16 is ejected together with the push-up member 15. Therefore, the loss of ejection energy can be suppressed and ejection performance can be improved.

[0044] Furthermore, an aircraft 30 equipped with a safety device 100 having the configuration described above can be obtained.

[0045] As described above, the safety device 100 in the embodiment of the present invention comprises a piston member 10, an actuator 1 having a gas generator 17 that generates a driving force to slide the piston member 10 to one side, a push-up member 15 that supports the injection material 16, and a container 18 that houses at least the piston member 10, the actuator 1, the push-up member 15, and the injection material 16. The push-up member 15 has a hole 26 through which a line 40 (suspension line 41), one end of which is connected to the injection material 16, is inserted, and the injection material is ejected when the piston member 10 slides to one side due to the driving force.

[0046] According to this, the line 40 (suspension line 41) is inserted through the hole 26 and the push-up member 15 is injected, so the push-up member 15 can also be used as a slider. Therefore, since there is no need to provide a separate slider, the injection part can be made lighter and the injection performance can be improved.

[0047] Furthermore, in the safety device 100 according to the embodiment of the present invention, the push-up member 15 further has a support portion 20 that extends in a direction intersecting the sliding direction in which the piston member 10 slides and supports the injection material 16, and the hole portion 26 is provided in the support portion 20.

[0048] According to this, the line 40 (suspension line 41) can be inserted through the hole 26 to facilitate the deployment of the injection material 16, thereby further improving the injection performance.

[0049] Furthermore, the aircraft 30 in the embodiment of the present invention comprises an airframe 31, a safety device 100 coupled to the airframe 31, and one or more propulsion mechanisms 32 coupled to the airframe 31 for propelling the airframe 31.

[0050] According to this, it will have the same effects as the safety device 100 described above.

[0051] <Other Embodiments> Although embodiments of the present invention have been described above with reference to 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 above description of embodiments, and all modifications within the meaning and scope equivalent to the claims are further included.

[0052] In the above embodiment, a bolt member 50 was provided, but any configuration is acceptable as long as the push-up member is supported by the piston member in the initial state and the push-up member is ejected together with the injectable during operation. For example, the bolt member 50 in the above embodiment may be omitted (the piston member 10 and the push-up member 15 may not be fixed by the bolt member 50), and the push-up member 15 may be simply supported by the piston member 10 in the initial state. Alternatively, a pin may be provided instead of the bolt member 50. Specifically, a pin extending in a direction intersecting the direction in which the piston member slides may be inserted into the protrusion of the piston member and the push-up member, and the pin may break after the piston member slides, thereby separating the piston member and the push-up member and ejecting the push-up member. Furthermore, it is not necessary to fix the push-up member to the piston member with a bolt member or the like. For example, the piston member may have a protrusion that extends to one side of the cylinder in the state before operation, and the push-up member may have a hole that slidably fits into the protrusion. Furthermore, the piston member may have a hole at one end that is recessed toward the other, and the push-up member may have a projection that slidably fits into the hole.

[0053] Furthermore, although the hole 26 is provided in the support portion 20 in the above embodiment, the hole 26 may be provided in a location other than the support portion 20. For example, the hole 26 may be provided in the bottomed cylindrical portion 19.

[0054] Furthermore, in the above embodiment, a portion of the base 2 was configured to be located outside the housing 18, but the entire base 2 may be configured to be located inside the housing 18.

[0055] Furthermore, although a gas generator was used as the power source in the above embodiment, the configuration is not limited as long as it is capable of providing the sliding member with the driving force necessary for the sliding member to propel itself within the cylinder. For example, an elastic body such as a spring, or a system using pressure from a gas cylinder, may also be used.

[0056] Furthermore, although the container 18 is formed in a cylindrical shape in the above embodiment, it is not limited to this and may be formed in other shapes, such as a square tube.

[0057] Furthermore, in the above embodiment, if a parachute or paraglider is used as the projectile, the parachute or paraglider may be packed. The packing is configured to tear or peel off during operation.

[0058] Furthermore, while the above embodiment mentions a parachute or paraglider as the ejected object, it is not limited to these, and objects including a lift-generating member may also be ejected. Examples of lift-generating members include parafoils, Rogallo-type parachutes, single-surface parachutes, airplane wings, propellers, balloons, etc. Also, if the lift-generating member has a control line, it is desirable that the safety device be equipped with a steering mechanism that can change the inclination angle of the ejected lift-generating member using the control line. This steering mechanism may include, for example, a plurality of reels that each wind up a plurality of control lines connected to the lift-generating member, and a motor that powers these reels. By winding in or releasing the control lines by driving the motor, the lift-generating member can be pulled or released as appropriate.

[0059] Furthermore, the projectile may be a pilot chute, and the safety device may include a parachute connected to the pilot chute. In this case, for example, the safety device may include a separate housing for the parachute in addition to the housing for the pilot chute.

[0060] Alternatively, the aircraft may be equipped with a safety device capable of launching a net instead of a parachute or paraglider. This allows the aircraft to hook onto a hook or protrusion by launching the net at the right time, thereby preventing the aircraft from falling to the ground. Furthermore, instead of a parachute or paraglider, the aircraft may be capable of launching medical supplies, cargo, etc.

[0061] Furthermore, the aircraft may be equipped with a safety device that allows an actuator to eject a deflated or folded lifebuoy (float) along with a drive mechanism (such as an inflation device including a gas generator), and the drive mechanism to inflate and unfold the lifebuoy. This prevents the aircraft from sinking and also serves as a marker for the recovery location in the event of a crash.

[0062] Furthermore, the aircraft may be equipped with a safety device that allows an actuator to eject a retracted or folded lifebuoy (float) and parachute together with a drive mechanism (such as an inflation device including a gas generator), and the drive mechanism to deploy the lifebuoy and parachute. This reduces the falling speed of the aircraft when it crashes, prevents the aircraft from sinking into water, and also serves as a marker for the recovery location in the event of a crash.

[0063] Alternatively, the aircraft may be equipped with a safety device that allows an actuator to eject a parachute along with a drive mechanism (such as a cutting device with a drive unit), and after the parachute is deployed, the drive mechanism cuts some of the multiple connecting members that connect the parachute to the aircraft, shifting the aircraft's center of gravity so that it falls sideways, and then using an airbag device provided on the side of the aircraft that is falling to mitigate the impact of a collision with the ground or the like.

[0064] Alternatively, the aircraft may be equipped with a safety device that allows an actuator to eject a so-called paramotor along with its drive mechanism (including a power supply and other drive components), and after the parachute or paraglider is fully deployed, the drive mechanism can drive the motor to rotate the propeller. This prevents the parachute or paraglider from becoming entangled in the propeller. A paramotor is a device that can fly by obtaining thrust from a power source (such as a motor-driven propeller rotater) attached to the harness portion of a parachute or paraglider.

[0065] Furthermore, the aircraft may be equipped with a safety device that allows an actuator to eject a sound-generating device along with a drive mechanism (including a power supply and other drive components), and the drive mechanism to activate the sound-generating device when the aircraft crashes, thereby alerting those in the surrounding area of ​​danger.

[0066] Furthermore, the aircraft may be equipped with a safety device that allows an actuator to eject a lighting device (such as a flashlight) along with a drive mechanism (including a power supply and other drive components), and the drive mechanism to activate the lighting device when the aircraft crashes, thereby alerting those in the surrounding area to danger.

[0067] Alternatively, the aircraft may be equipped with a safety device that allows an actuator to eject a fire extinguisher along with a drive mechanism (including a power supply and other drive components), and the drive mechanism to activate the fire extinguisher in the event of a crash, thereby spraying fire extinguishing agent onto the aircraft and its surroundings.

[0068] Alternatively, the aircraft may be equipped with a safety device that uses an actuator to eject a pre-launched, ejectable payload with a parachute (for example, expensive equipment) along with a drive mechanism, and the drive mechanism deploys the parachute of the payload. This allows for focused protection of the parachute payload.

[0069] Alternatively, the aircraft may be equipped with a safety device that uses an actuator to eject an airbag-equipped payload (for example, expensive equipment) that has been pre-loaded in a ejectable manner, along with a drive mechanism (such as an inflation device including a gas generator), and inflates and deploys the airbag of the airbag-equipped payload. This allows for focused protection of the airbag-equipped payload.

[0070] Alternatively, the aircraft may be equipped with a safety device that allows an actuator to eject a distress signal transmitter along with a drive mechanism (including a power supply and other drive components), and the drive mechanism to activate the distress signal transmitter when the aircraft crashes, thereby transmitting a distress signal to the outside. This makes it possible to pinpoint the crash site if the aircraft crashes.

[0071] Alternatively, the aircraft may be equipped with a safety device that uses an actuator to eject a black box with a parachute (such as a flight recorder) along with a drive mechanism (such as an inflation device including a gas generator), and the drive mechanism to deploy the parachute of the black box when the aircraft crashes. This allows for focused protection of the black box with the parachute. As a result, flight data can be protected. [Explanation of symbols]

[0072] 1 Actuator 2 bases 2A Approximately cylindrical member 2B Flange section 2a,10c,22c,25,51,52,53 Hole 2c insertion slot 3. Cylindrical member 4 Tubular member 5. Retaining member 10 Piston member 10a Main body 10b Rod-shaped part 10d Female thread section 10e,23a,23b Groove 10f protrusion 11,12 Sealing member 13 Hole 14 cylinders 15 Push-up member 16 Projectile 17 Gas generator 17a Cup Body 17b Electrode 18 containers 19 Bottomed cylindrical part 19a bottom 20 Support part 21 Lid 22 connectors 22a Main body 23 Stopper member 26 Hole 27 Movement prevention member 28 volts 29a hole 30 flying objects 31 aircraft 32 Propulsion mechanism 33 Legs 40 lines 41 Suspension Line 42 connecting lines 50 Bolt Members 50a Head section 50b Male threaded section 53a Insertion opening 60 Closure member 100 safety equipment

Claims

1. Sliding member and An actuator having a power source that generates a driving force to slide the sliding member to one side, A push-up member that supports the injection material, At least the sliding member, the actuator, the pushing member, and the container for housing the injection material inside, Equipped with, The safety device is characterized in that the push-up member has a plurality of holes through which at least two of the lines connected to the injection material are inserted, and the sliding member slides to one side due to the driving force, causing the injection material to be ejected.

2. The push-up member further has a support portion that extends in a direction intersecting the sliding direction in which the sliding member slides and supports the injection material, The safety device according to claim 1, characterized in that the aforementioned hole is provided in the support portion.

3. The aircraft and, A safety device according to claim 1 or 2, which is coupled to the aircraft body, An aircraft characterized by comprising one or more propulsion mechanisms coupled to the aforementioned aircraft and propelling the aircraft.

Images