Safety device and aircraft equipped with a safety device

Abstract

[Problem] To provide a safety device and an aircraft equipped with the safety device. [Solution] A safety device 100 includes an actuator 1, a projectile 16 that is shot in one direction (upward direction in FIG. 1) by operation of the actuator 1, a bottomed cylindrical housing cover 18 (bottomed cylindrical member) that houses the actuator 1 and the projectile 16, and a substantially disc-shaped bottom portion 21 that closes an open end portion of the housing cover 18. One end of a first link member is connected to a portion of the projectile 16, and the other end of the first link member is connected to the inside of the housing cover 18. The actuator 1 is provided on the bottom portion 21 and includes a piston member 10 and a gas generator 17 that generates a driving force for shooting the housing cover 18 by striking the housing cover 18 by sliding of the piston member 10. One end of a second link member is connected to another portion of the projectile 16, and the other end of the second link member is connected to a front end portion 10d.

Description

Technical Field

[0001] This invention relates to a safety device for launching projectiles such as parachutes or paragliders, and an aircraft equipped with the safety device. Background Technology

[0002] In recent years, with the development of autonomous control and flight control technologies, the industrial application of multi-rotor aircraft, such as drones, has accelerated. Drones fly by simultaneously rotating multiple rotors in a balanced manner, achieving ascent and descent by increasing or decreasing the number of rotor rotations, and forward and backward movement by tilting the aircraft. It is foreseeable that this type of aircraft will see further development globally in the future.

[0003] On the other hand, the risk of crashes from these aircraft is considered extremely dangerous, hindering their widespread adoption. To reduce the risk of crashes, aircraft parachute systems have been commercialized as a safety device.

[0004] For example, as an example of the aforementioned parachute safety device, the applicant filed a related application for Patent Document 1. The safety device in Patent Document 1 is as described in Patent Document 1. Figure 1 As shown, the device includes: a piston component (sliding component); a cylinder that houses the piston component and has a hole for the piston component to protrude outward during operation; a pusher component that is pushed upward in one direction by the piston component; an ejector that is supported by the pusher component and pushed upward; a gas generator that moves the piston component within the cylinder; and a receiver that holds the ejector, etc. The pusher component has a support portion disposed on the end side of the piston component with reference to the front end of the piston component in the direction of movement of the piston component. Furthermore, the bottom of the pusher component is fixed to the front end of the piston component.

[0005] Existing technical documents

[0006] Patent documents

[0007] Patent Document 1: Japanese Patent Application Publication No. 2020-1680 Summary of the Invention

[0008] The problem that the invention aims to solve

[0009] In safety devices like those in Patent Document 1, since they are mounted on aircraft or the like, further miniaturization and weight reduction are desired.

[0010] Therefore, the object of the present invention is to provide a safety device that is smaller and lighter than before, and an aircraft equipped with the safety device.

[0011] Methods for solving problems

[0012] (1) The safety device of the present invention is characterized by comprising: a bottomed cylindrical member having an open end portion disposed at one end and a top plate portion disposed at the other end; a bottom portion initially mounted on the open end portion of the bottomed cylindrical member and configured to open the open end portion during operation; an actuator disposed at the bottom portion having a sliding member and a power source, the power source generating a driving force for ejecting the bottomed cylindrical member by causing the sliding member to slide towards the top plate portion and impacting the bottomed cylindrical member; an ejector being housed between the bottomed cylindrical member and the bottom portion; a first connecting member having one end connected to the ejector and the other end connected to the bottomed cylindrical member; and a second connecting member having one end connected to the sliding member, the bottom portion, or an external load, and the other end connected to the ejector, wherein when the bottomed cylindrical member is ejected, the ejector is also ejected by being pulled out through the first connecting member. Here, the term "payload" can refer to things like "aircraft," "baggage," or "measuring devices for measuring the environment in the air or at sea."

[0013] (2) In the safety device described in (1) above, it is preferable that the sliding member is positioned at the location where it impacts the central portion of the top plate of the bottom cylindrical member during operation, and the central portion is a part or component with a higher strength than the parts outside the central portion and an impact strength that resists the impact when the sliding member impacts the central portion.

[0014] (3) In the safety device of (1) or (2) above, it is preferable that the other end of the first connecting member is connected to a part other than the position where the sliding member of the central part impacts, and the central part is a part or component with higher strength than the part other than the central part and has impact strength to resist the impact when the first connecting member is stretched during operation.

[0015] (4) In the safety devices (1) to (3) above, preferably, the bottom has a protrusion at the edge that is opposite to the side wall of the bottomed cylindrical member before the action, and also has a locking mechanism that engages the side wall of the opening end with the protrusion by inserting a pin member into a first through hole that is disposed through the center of the bottomed cylindrical member in the side wall of the opening end and a second through hole that is disposed through the protrusion in the bottom. Alternatively, a locking mechanism that engages the side wall of the opening end with the protrusion by using a snap-fit ​​method that utilizes the elasticity of the material constituting the bottomed cylindrical member or the protrusion.

[0016] (5) The aircraft of the present invention is characterized in that the payload is an aircraft having an airframe: any one of the safety devices (1) to (4) connected to the airframe; and a propulsion mechanism connected to the airframe and propelling the airframe.

[0017] The effects of the invention

[0018] This invention provides a safety device that is smaller and lighter than conventional ones, as well as an aircraft equipped with the safety device. Attached Figure Description

[0019] [ Figure 1 [Illustration 1] is a cross-sectional view showing the initial state of the safety device according to an embodiment of the present invention.

[0020] [ Figure 2 (a) is Figure 1 The plan view of the safety device, (b) is Figure 1 A perspective view of the safety device.

[0021] [ Figure 3 ]yes Figure 1 A partial enlarged view of the safety device.

[0022] [ Figure 4 ] indicates that it is equipped with Figure 1 An example of a safety device on an aircraft.

[0023] [ Figure 5 ] indicates Figure 1 A cross-sectional view of the operating state of the safety device.

[0024] [ Figure 6 ] indicates Figure 1 A diagram showing the state of the safety device after it has been activated.

[0025] [ Figure 7 [Illustration 1] is a diagram showing the state of the safety device after operation in a modified example of the present invention.

[0026] [ Figure 8 [ ] is a cross-sectional view showing the initial state of a safety device according to other variations of the present invention.

[0027] [ Figure 9 ] indicates Figure 8 A perspective view of the storage cover for the safety device.

[0028] [ Figure 10 ] indicates Figure 8 An angled view of the bottom of the safety device. Detailed Implementation

[0029] The following text refers to Figures 1-5 This invention describes a safety device and an aircraft according to embodiments of the present invention. Additionally, Figure 1 Too Figure 2 (a) shows the AA arrow view of the safety device.

[0030] like Figure 1 As shown, the safety device 100 includes: an actuator 1; and a mechanism that directs movement in one direction via the operation of the actuator 1. Figure 1 The device consists of an ejector 16 (projected upwards); a bottomed cylindrical cover 18 (a bottomed cylindrical component) for housing the actuator 1 and the ejector 16; and a generally disc-shaped bottom 21 that closes the open end of the cover 18. The cover 18 and the bottom 21 together constitute a housing. In this embodiment, the ejector 16 is a parachute or a paraglider.

[0031] Actuator 1 includes: a piston member 10 as a sliding member; and a cylinder 14 that houses the piston member 10 and is provided for the piston member 10 to move outward during operation. Figure 1 The base 2 (detonator support) has a protruding hole 13 (in the upward direction) and is riveted to one end of the cylinder 14 and installed through the hole 25 in the center of the bottom 21; a gas generator (miniature gas generator, etc.) 17, which serves as a power source to move the piston component 10 within the cylinder 14.

[0032] The base 2 includes: a near-cylindrical component 2A, which holds a gas generator 17 that generates the power to slide the piston component 10 on the cylinder 14 side; and a flange 2B, which is provided on the side of the near-cylindrical component 2A opposite to the cylinder 14 side.

[0033] The flange portion 2B is machined into a roughly U-shaped, horseshoe shape (not shown), and includes: multiple holes 2a for mounting on the bottom 21; multiple fixing holes (not shown) for mounting on the fuselage 31 of the aircraft 30 (described later); and an insertion port 2c for inserting a power connector (not shown) into the electrode 17b at the lower part of the gas generator 17. Internal threads are cut into the inner wall of the holes 2a, which engage with the bolts 28 (described later). Additionally, internal threads are also cut into the inner wall of the fixing holes (not shown), and bolts (not shown) engage with the aircraft 30 (described later) from the fuselage 31 side, thereby enabling the base 2 to be fixed to the fuselage 31.

[0034] The piston component 10 includes: a main body portion 10a having an outer diameter portion approximately the same as the inner diameter of the cylinder 14; a rod-shaped portion 10b connected to the main body portion 10a, extending upward and having a diameter smaller than that of the main body portion 10a; a bore portion 10c disposed inside the main body portion 10a and the rod-shaped portion 10b; a front end portion 10d disposed at the upper end of the rod-shaped portion 10b; and a groove portion 10e disposed circumferentially in the main body portion 10a. The diameter of the main body portion 10a is smaller than the diameter of the bore portion 13. That is, the bore portion 13 has a stop function relative to the piston component 10 during operation.

[0035] The hole 10c is formed along the central axis from the lower end of the main body 10a to the middle of the rod-shaped part 10b. As a result, the weight of the piston component 10 is reduced compared to the case where the hole 10c is not formed.

[0036] like Figure 1 As shown, the front end portion 10d is configured to be in contact with the inner side of the storage cover 18 (more specifically, the disc portion 18c (central portion) described later) in the initial state.

[0037] A sealing component 11, such as an O-ring, is provided in the circumferential direction of the groove 10e.

[0038] like Figure 3 As shown, the bottom 21 includes: a cylindrical protrusion 21a extending from the edge toward the storage cover 18; and a support member 21b protruding toward the storage cover 18 at the opening end that clamps the storage cover 18, opposite to the protrusion 21a. In addition, a reinforcing member 21e is provided on the inner side of the bottom surface of the bottom 21 to reinforce the bottom 21.

[0039] like Figure 3 As shown, the protrusion 21a has a second through hole 21c that extends through the center of the bottom 21. Additionally, as... Figure 2 and Figure 3 As shown, a cylindrical protrusion 21f is formed on the outer side of the protrusion 21a. This cylindrical protrusion 21f communicates with the first through hole 18b1 (described later) and includes a peripheral wall portion surrounding the outer periphery of the head 22a on its inner side. Therefore, by inserting a pull pin or a flathead screwdriver, it is possible to prevent the pin member 22 from being pulled out and causing the bottom 21 to open. Furthermore, by inserting the pin member 22 into the second through hole 21c and the first through hole 18b1 (described later), a locking mechanism is formed that engages the opening end of the storage cover 18 with the protrusion 21a. Here, the protrusion 21a is cylindrical, but it does not necessarily have to be cylindrical; it can be any protrusion (protrusion, etc.) that is positioned opposite the support member 21b and has the second through hole 21c.

[0040] like Figure 3 As shown, the support member 21b has a second through hole 21d extending through the center of the bottom 21. When the pin member 22 is inserted into the second through hole 21c and the first through hole 18b1, the front end of the support pin member 22 (the front end of the pin member 22 is inserted) can make the fixation between the opening end of the storage cover 18 and the bottom 21 more secure.

[0041] like Figure 3As shown, the pin component 22 has: a head 22a with a diameter larger than that of the second through hole 21c; and a rod-shaped portion 22b that is inserted into and fitted into the first through hole 18b1, the second through hole 21c, and the second through hole 21d, with the head 22a provided at one end. Additionally, the pin component 22 has a locking portion (not shown) to prevent it from falling out after being inserted into the first through hole 18b1, the first through hole 21c, and the second through hole 21d before operation. Specific examples of such a pin component 22 include brush clip pins, decorative clip pins, etc., but it is not limited to these. Any component can be used as long as it has a locking portion (including a component with relatively high friction on the surface of the rod-shaped portion 22b) to prevent it from falling out after being inserted into the first through hole 18b1, the second through hole 21c, and the second through hole 21d. Here, in this embodiment, as... Figure 2 As shown in (a), an example is illustrated where a pair of pin parts 22 are arranged opposite each other in the vertical direction of the paper, but it is not limited to this. For example, another pair of pin parts 22 may be arranged opposite each other in the left-right direction of the paper.

[0042] The reinforcing component 21e has a hole 21g formed in the central part (see reference). Figure 1 The reinforcing member 21e is a roughly disc-shaped component used to reinforce the bottom surface of the bottom 21, support the ejector 16, and protect it from the bolts 28. Furthermore, the reinforcing member 21e only needs to support the ejector 16 and protect it from the bolts 28; it does not necessarily have to be disc-shaped and can be of any structure.

[0043] like Figure 1 , Figure 2 As shown, the storage cover 18 is a generally bottomed cylindrical component having a generally disc-shaped top plate portion 18a, a cylindrical side portion 18b, and a disc portion 18c. The top plate portion 18a has a hole 18a1 in the center that is closed by the disc portion 18c (see reference). Figure 1 ) and a plurality of holes 18a2 disposed around the hole 18a1 and communicating with the outside (see reference) Figure 2 ), formed at the upper end of side 18b.

[0044] like Figure 3 As shown, the side portion 18b has a first through hole 18b1 and a fractured portion 18b2 near the opening end. The fractured portion 18b2 is formed in the first through hole 18b1... Figure 3 The part that breaks when a specified force is applied below the surface of the paper.

[0045] like Figure 1 , Figure 2As shown, the disc portion 18c is fixed to the storage cover 18 by multiple sets of bolts 23 and nuts 24, such that the front end of the piston component 10 is in the impact position during operation. In addition, by making the disc portion 18c a component with higher strength than other parts of the storage cover 18 (top plate portion 18a, side portion 18b) (for example, the disc portion 18c is made of metal (iron, etc.), alloy or composite reinforced component (fiber reinforced plastic, etc.), and making it a component with impact strength that can resist the impact when the front end of the piston component 10 hits the disc portion 18c, it is only necessary to make the parts of the storage cover 18 other than the disc portion 18c have the minimum necessary strength (for example, the strength to the extent that it can protect the ejected material 16 until operation), so the storage cover 18 can be made lightweight.

[0046] The gas generator 17 is positioned below the main body 10a of the piston component 10, which will be described later, with the gas generator 17 pressed into the open end below the cylinder 14.

[0047] The gas generator 17 can use only an igniter, or it can be a gas generator equipped with both an igniter and a gas generating agent. Alternatively, a mixing or storage type gas generator can be used, where a small gas cylinder's sealing plate is broken by a gunpowder-type igniter, releasing the internal gas to the outside. In this case, the pressurized gas inside the cylinder can be a non-flammable gas such as argon, helium, nitrogen, or carbon dioxide, or a mixture thereof. Furthermore, to reliably advance the piston when releasing the pressurized gas, the gas generator can be equipped with a heating element made of a gas generating agent composition or an aluminothermic agent composition.

[0048] The ejector 16 is folded and stored between the inner surface of the storage cover 18 and the inner surface of the bottom 21, for example, in a manner that surrounds the outer side of the cylinder 14. Additionally, connecting members 41 and 42 (see reference) are attached to a portion of the ejector 16 as first connecting members. Figure 5 , Figure 6 One end of the connecting parts 41 and 42 is connected to the inside of the receiving cover 18 (to a hook or hole (not shown) located at a position other than the position where the piston part 10 impacts (contacts) the disc part 18c). Additionally, the connecting part 43 (see reference 42) is a second connecting part. Figure 6 One end of the connecting member 43 is connected to another part of the ejector 16, and the other end of the connecting member 43 is connected to the front end 10d of the piston member 10. Here, one end of the connecting member 43 can be connected to the bottom 21 or the payload, and the connecting member 43 can also be multiple connecting members.

[0049] Here, when the connecting parts 41 and 42 are fixed to the disc portion 18c, the disc portion 18c is configured to withstand the impact from the stretching of the connecting parts 41 and 42 during operation (metal (iron, etc.), alloy, or composite reinforced part (fiber-reinforced plastic, etc.), and the parts of the storage cover 18 other than the disc portion 18c are configured to have the necessary minimum strength (for example, strength sufficient to protect the ejected material 16 until operation). Therefore, the storage cover 18 can be made lightweight. In addition, by adjusting the length of the connecting parts 41 and 42 and / or the output of the actuator 1, it is possible to control how long after the ejection from the storage cover 18 the ejected material 16 is pulled out.

[0050] In the above structure, when a vehicle equipped with safety device 100, such as an aircraft, crashes, the gas generator 17 operates, from... Figure 1 Starting from the initial state, the piston assembly 10 is pushed upward within the cylinder 14 by the pressure of the gas generated by this operation. As a result, the breakable portion 18b2 of the storage cover 18 breaks, the open end of the storage cover 18 opens, and the storage cover 18 detaches from the bottom 21, being ejected upward while pulling up one end of the connecting parts 41, 42. Then, as... Figure 5 As shown, when tension is applied to the connecting parts 41 and 42, the ejector 16 is ejected towards the receiving cover 18 in a stretched manner. Furthermore, as... Figure 6 As shown, after the ejector 16 is deployed, it is suspended from the bottom 21 via the connecting member 43, the piston member 10, and the cylinder 14.

[0051] In addition, such as Figure 4 As shown, the safety device 100 is connected and fixed to the fuselage 31 of the aircraft 30 via bolts (not shown) through fixing holes (not shown) in the base 2 from the fuselage 31 side. Therefore, the aircraft 30 includes a fuselage 31, a safety device 100 coupled to the fuselage 31, one or more propulsion mechanisms (e.g., propellers) 32 coupled to and propelling the fuselage 31, and multiple feet 33 provided on the lower part of the fuselage 31.

[0052] The safety device 100 with the above structure can achieve miniaturization and lightweight design because the number of parts can be reduced compared to the past.

[0053] Furthermore, since the ejector 16, such as the parachute, is a soft material (such as a membrane), it would previously absorb the driving force of the gas generator 17 if ejected with a short stroke, making it impossible to effectively utilize that driving force. However, according to the safety device 100 with the above structure, the ejector 16 can be ejected by pulling it out through the ejection receiving cover 18 (a rigid body). That is, even with a short stroke, the driving force of the gas generator 17 can be transmitted to the receiving cover 18 without loss, and the momentum of the ejection receiving cover 18 can pull up the ejector 16, thus effectively utilizing that driving force. Therefore, even with a shortened stroke of the actuator 1, the ejector 16 can be ejected sufficiently, making the safety device 100 smaller and lighter than before. In particular, since the overall length of the actuator 1 can be shortened compared to the past, the overall shape of the receiving device can be made flatter than before. Therefore, when the safety device 100 is mounted on the aircraft 30, the center of gravity becomes more stable compared to the past, and air resistance during flight is reduced.

[0054] Furthermore, the safety device 100 of the above structure stops the movement of the piston component 10 in the bore 13 of the cylinder 14. Previously, it was necessary to stop both the piston component and other components connected to it in the bore of the cylinder. That is, with the safety device 100 of the above structure, only the piston component 10 needs to be stopped, thus reducing the impact force of stopping compared to the past. Therefore, if within an appropriate range, even if the strength of the actuator 1 is reduced compared to the past, there is no problem in terms of strength. That is, for example, by making the thickness of the cylinder 14 thinner than before within an appropriate range, the actuator 1 can be made lighter than before.

[0055] Furthermore, thanks to the safety device 100 with the aforementioned structure, since the receiving cover 18 is ejected before the ejected object 16 is ejected, no sliding resistance is generated between the ejected object 16 and the receiving cover 18. Therefore, it is possible to prevent a decrease in the ejection speed of the ejected object 16.

[0056] Furthermore, thanks to the safety device 100 with the aforementioned structure, since the flange 2B of the base 2 is located on the outer side of the bottom 21, the base 2 can be directly mounted on the fuselage 31 of the aircraft 30. Therefore, the recoil force during operation is not transmitted through the bottom 21, but is directly borne by the fuselage 31. Since the impact on the bottom 21 during operation is reduced, the strength of the bottom 21 can be reduced compared to the case where the base 2 is located inside the bottom 21. In other words, compared to the past, the strength of the bottom 21 can be safely reduced (for example, by designing the thickness of the bottom 21 to a safe, predetermined thickness), ensuring the same level of safety as before while making the bottom 21 lighter overall.

[0057] In addition, an aircraft 30 equipped with the safety device 100 described above can be obtained.

[0058] The embodiments of the present invention have been described above based on the illustrations, but the specific configuration is not limited to these embodiments. The scope of the present invention is not determined by the description of the above embodiments, but by the scope of the claims, and further includes all modifications that are equivalent to or within the scope of the claims. For example, the present invention includes the following variations.

[0059] In the above embodiment, a hole 18a2 is formed on the storage cover 18, but to ensure waterproofing, the hole 18a2 may not be formed. Furthermore, even in this case, since the storage cover 18 and the bottom 21 immediately separate after operation, allowing external gas to flow in, the internal pressure of the storage unit composed of the storage cover 18 and the bottom 21 will not become negative during operation, so there is no need to form an air inlet on the storage cover 18 or the bottom 21.

[0060] Furthermore, in the storage cover 18 of the above embodiment, there is a disc portion 18c for other components that is installed by blocking the hole 18a1 of the top plate portion 18a, but it can also be integrally formed from the same component. In this case, in order to achieve the same effect as the disc portion 18c in the above embodiment, the thickness of the portion corresponding to the disc portion 18c can be made thicker than other portions, etc., to strengthen the component's strength (impact strength) to the necessary degree.

[0061] In the first connecting component of the above embodiment, there are two connecting components 41 and 42, but there can also be one or more. Furthermore, as long as the receiving cover 18 and the ejector 16 are smoothly ejected and deployed, the first connecting component of the above embodiment can be connected to any position of the receiving cover 18 and the ejector 16 or the payload. Similarly, as long as the ejector 16 is smoothly ejected and deployed, the second connecting component of the above embodiment can be connected to any position of the ejector 16 or the payload.

[0062] Alternatively, pressure can be applied from the outside of the cylindrical protrusion 21f in the above embodiment towards the inside, causing the inner wall (peripheral wall portion) of the cylindrical protrusion 21f to contact the head 22a for riveting and fixing. This prevents the head 22a from falling off and flying outwards during operation.

[0063] Alternatively, resin acting as an adhesive can be filled between the head 22a and the inner wall (peripheral wall portion) of the cylindrical protrusion 21f in the above embodiment, and then cured to fix the head 22a and the cylindrical protrusion 21f. This prevents the head 22a from detaching and flying outwards during operation.

[0064] Alternatively, the riveted head 22a and the cylindrical protrusion 21f can be further secured with resin. This further prevents the head 22a from detaching and flying outwards during operation.

[0065] Alternatively, a locking mechanism using a snap-fit ​​method can be used instead of the locking mechanism described in the above embodiments. Examples of locking mechanisms include (a) (not shown), a structure in which a recess provided on the inner wall of the opening end of the storage cover and a protrusion provided on the outer wall of the protrusion extending from the bottom to the inner side of the storage cover are locked together; (b) (not shown), a structure in which a protrusion provided on the inner wall of the opening end of the storage cover and a recess provided on the outer wall of the protrusion extending from the bottom to the inner side of the storage cover are locked together; (c) (not shown), a structure in which a protrusion provided on the inner wall of the protrusion at the bottom, which is larger than the diameter of the storage cover (the same as the above embodiment except that there is no second through hole 21c), and a recess provided on the outer wall of the opening end of the storage cover are locked together; (d) (not shown), a structure in which a recess provided on the inner wall of the protrusion at the bottom, which is larger than the diameter of the storage cover (the same as the above embodiment except that there is no second through hole 21c), and a protrusion provided on the outer wall of the opening end of the storage cover are locked together. Furthermore, the protrusions here can be continuous annular protrusions or independent rod-shaped protrusions. Similarly, the concave portions here can be annular grooves when the protrusions are annular, or annular grooves or independent depressions when the protrusions are independent rod-shaped protrusions.

[0066] In addition, in the above embodiment, a portion of the base 2 is configured to be located outside the storage cover 18, but the entire base 2 can also be configured to be located inside the storage cover 18.

[0067] In addition, in the above embodiment, a gas generator is used as the power source. However, as long as the driving force for pushing the sliding component into the cylinder can be applied to the sliding component, its structure is not limited. For example, an elastic body such as a spring can also be used, or a structure using pressure generated by a gas cylinder can be used.

[0068] In addition, in the above embodiment, the storage cover 18 is formed into a cylindrical shape, but it is not limited to this. For example, it can also be formed into other shapes such as a square tube.

[0069] Furthermore, in the above embodiments, when a parachute or paraglider is used as the projectile, the parachute or paraglider can also be packaged. Additionally, the package is configured to break or peel off during operation.

[0070] Furthermore, in the above embodiments, the projectiles include parachutes or paragliders, but are not limited to these; any object including a lift-generating component may also be launched as the projectile. Examples of lift-generating components include parachutes, Logarithmic parachutes, single-sided parachutes, aircraft wings, propellers, balloons, etc. Additionally, when the lift-generating component has control lines, it is desirable that the safety device include a steering mechanism that can change the tilt angle of the launched lift-generating component using the control lines. This steering mechanism, for example, includes multiple spools each wound with multiple control lines connected to the lift-generating component, and a motor that powers these spools. By driving the motor and winding or pulling the control lines, the lift-generating component can be appropriately stretched or loosened.

[0071] Alternatively, an aircraft equipped with a safety device capable of launching a net can be used instead of a parachute or paraglider. By launching the net at the right moment onto a hook or protrusion, the aircraft can be hooked onto it. This prevents the aircraft from crashing to the ground and colliding with the ground. Furthermore, medical supplies, luggage, etc., can also be launched instead of parachutes or paragliders.

[0072] Alternatively, the aircraft could be equipped with a safety device that can eject a retractable or folded float (buoy) along with a drive mechanism (including an expansion device such as a gas generator) via an actuator, and then expand and unfold the float via the drive mechanism. This prevents the aircraft from being submerged in water and serves as a marker for the recovery location in the event of a crash.

[0073] Alternatively, it could be an aircraft equipped with a safety device that can eject a retractable or folded float (buoy) and parachute together with a drive mechanism (including an expansion device such as a gas generator) via an actuator, and then deploy the float and parachute via the drive mechanism. This reduces the aircraft's descent speed during crashes, prevents the aircraft from being submerged in water, and serves as a marker for the aircraft's recovery location during crashes.

[0074] Alternatively, it can be an aircraft equipped with a safety device that can launch the parachute and drive mechanism (such as a cut-off device with a drive unit) together via an actuator. After the parachute deploys, the drive mechanism cuts off a portion of the multiple connecting parts that connect the parachute and the aircraft, causing the aircraft's center of gravity to shift and fall sideways. Then, an airbag device located on the side of the aircraft on the side of the impact is used to mitigate the impact on the ground.

[0075] Alternatively, it could be an aircraft equipped with a safety device that launches the so-called powered parachute and drive mechanism (including power supply and other drive components) together via an actuator. After the parachute or paraglider is fully deployed, the drive mechanism drives the motor to rotate the propeller. This prevents the parachute or paraglider from getting tangled in the propeller. Furthermore, a powered parachute refers to a device that incorporates power (such as a motor-driven propeller rotor) into the wiring harness of the parachute or paraglider to generate thrust and enable flight.

[0076] Alternatively, it could be an aircraft equipped with a safety device that can launch a sound generator and a drive mechanism (including a power supply and other drive components) together via an actuator. The drive mechanism can then activate the sound generator when the aircraft crashes, thereby alerting the surrounding area to the danger.

[0077] Alternatively, it could be an aircraft equipped with a safety device that can launch a lighting device (such as a flashlight) and a drive mechanism (including a power supply and other drive components) together via an actuator. The drive mechanism activates the lighting device when the aircraft crashes, thereby alerting the surrounding area to the danger.

[0078] Alternatively, it could be an aircraft equipped with a safety device that can launch the fire extinguisher and drive mechanism (including power supply and other drive components) together via an actuator. The fire extinguisher is activated by the drive mechanism when the aircraft crashes, thereby spraying extinguishing agent onto the aircraft body and surrounding area.

[0079] Alternatively, it could be an aircraft equipped with a safety device that can launch a pre-launchable parachute-equipped payload (e.g., expensive equipment) along with a drive mechanism via an actuator, and the drive mechanism then deploys the parachute of the parachute-equipped payload. This provides enhanced protection for the parachute-equipped payload.

[0080] Alternatively, it could be an aircraft equipped with a safety device that can eject a pre-launchable payload with an airbag (e.g., expensive equipment) along with a drive mechanism (including an inflation device such as a gas generator) via an actuator. The drive mechanism then inflates and deploys the airbag of the payload. This provides enhanced protection for the payload with the airbag.

[0081] Alternatively, the aircraft could be equipped with a safety device that can launch a distress signal transmitter along with a drive mechanism (including a power supply and other drive components) via an actuator. The drive mechanism activates the distress signal transmitter when the aircraft crashes, enabling it to send a distress signal to the outside world. This allows the crash site to be determined in the event of a crash.

[0082] Alternatively, the aircraft could be equipped with a safety device that ejects a parachute-equipped black box (such as a flight recorder) along with a drive mechanism (including an expansion device such as a gas generator) via an actuator. The drive mechanism then deploys the parachute of the black box during the aircraft's descent. This provides focused protection for the parachute-equipped black box, thereby protecting flight data.

[0083] Alternatively, the safety device of the present invention can also be Figure 7 The safety device 200 is shown. Hereinafter, the safety device 200 will be described. Unless otherwise specified, the same parts as those in the above embodiments are indicated by the same last two digits, and sometimes the description of these parts is omitted. Furthermore, parts that are not specifically described are the same as those in the above embodiments, and therefore their description is omitted.

[0084] The safety device 200 differs from the above embodiment in that: (1) a cylindrical part 118d is provided at the lower part of the disc part 118c; (2) in the initial state before operation, the cylindrical part 118d is arranged to cover the outside of the cylinder 114; and (3) one end of each of the connecting parts 141 and 142 is connected to the lower part of the cylindrical part 118d.

[0085] The safety device 200 with the above-described structure can achieve the same effect as the safety device 100. In addition, since the cylindrical portion 118d is configured to cover the outside of the cylinder 114, the ejection direction of the housing cover 118 can be restricted to the central axis direction of the cylinder 114.

[0086] Furthermore, since one end of each of the connecting members 141 and 142 is connected to the lower part of the cylindrical portion 118d, and the other end of each of the connecting members 141 and 142 is connected to the ejector 116, compared with the case where one end of each of the connecting members 141 and 142 is connected to a part other than the lower part of the cylindrical portion 118d, it is easier to connect the ejector 116 and the storage cover 118 during assembly. As a result, the assembly operation of the safety device 200 can be simplified.

[0087] Furthermore, by separating the space for storing the ejector 116 and the space for storing the cylinder 114 (actuator) by the cylindrical portion 118d, the assembly operation described above can be further simplified. That is, when the cylindrical portion 118d is not provided on the storage cover 118 (the lower part of the disc portion 118c), the space for storing the ejector 116 and the space for storing the cylinder 114 (actuator) are stored in one storage space. Therefore, in order to prevent the ejector 116 and the cylinder 114 (actuator) from overlapping inside the storage cover 118, it is necessary to assemble the ejector 116 on the storage cover 118, which is sometimes a major reason for the complexity of the assembly operation. In contrast, by using the safety device 200, since this factor can be eliminated, the assembly operation, including the assembly described above, can be simplified.

[0088] Furthermore, with the cylindrical portion 118d located near the center of the storage cover 118, the center of gravity of the storage unit is close to the center, making it easier to determine the position of the center of gravity of the safety device 200. That is, when installing the safety device 200 on the aircraft, the installation position of the safety device 200 relative to the aircraft can be easily determined while considering the aircraft's center of gravity balance.

[0089] Alternatively, the safety device of the present invention can also be Figure 8 The safety device 300 shown below. Hereinafter, it will be used... Figures 8-10 The safety device 300 will be described below. Unless otherwise specified, the same symbols as those in the above embodiments and modifications are used to denote the same parts as those in the above embodiments and modifications, and sometimes the description of these parts is omitted. In addition, parts that are not specifically described are the same parts as any of the parts in the above embodiments and modifications, and therefore the description is sometimes omitted.

[0090] like Figures 8 to 10 As shown, the main difference between the safety device 300 and the above-described embodiments and modifications is that a storage device with a storage cover 218 and a bottom 221 is used instead of the storage device in the above-described embodiments and modifications.

[0091] like Figure 8 and Figure 9 As shown, the storage cover 218 has an integrally formed top plate portion 218a, a side portion 218b, and a cylindrical portion 218d. The side portion 218b differs from the aforementioned side portion 118b in that it has a claw portion 218f provided on the inner circumferential surface of the opening end, and a pair of guide portions 218g provided parallel to and at a predetermined distance from the claw portion 218f. Furthermore, the pair of guide portions 218g are used to guide the protrusion 60 (described later) when assembling the storage cover 218 and the bottom 221.

[0092] The difference between the cylindrical portion 218d and the cylindrical portion 118d described above is that (1) it has a pair of holes 218e near the end on the bottom 221 side, which can fasten one end of each of a pair of connecting members (not shown) (the same as the connecting members 141 and 142 described above), and (2) one end is fixed to the bottom side of the top plate portion 218a by integral molding.

[0093] The difference between bottom 221 and bottom 121 is that bottom 221 has a base plate 221a and a side plate 221b. The inner side of the base plate 221a is provided with fastening members 250 for fastening the other ends of a plurality of connecting members (not shown) that are connected to one end of the ejector 216. The inner circumferential surface of the side plate 221b has a protrusion 260 that is erected along the ejection direction of the receiving cover 218.

[0094] The fastening component 250 has a hole 251a, an abutting portion 251 that abuts against the inner side of the base plate portion 221a, and a plurality of connecting portions 252 having holes 252a. Figure 10 (As an example, four locations are provided). In addition, the fastening component 250 is fixed to the base plate 221a by bolts 228. Furthermore, a cylindrical component 202A, which is inserted into the hole 251a and fixed to the base plate 221a by bolts 228, is used to fasten the other ends of multiple connecting components (not shown) that are connected to one end of the ejector 216 to the hole 252a by binding or bolts.

[0095] The protrusion 260 has a hole 260a near its front end that can engage the claw portion 218f. Furthermore, the width (lateral) of the protrusion 260 is formed to be slightly smaller than the distance between the pair of guide portions 218g, guided by the pair of guide portions 218g. This facilitates the alignment of the claw portion 218f and the hole 260a, resulting in easier assembly of the safety device 300. Additionally, since it is difficult for the storage cover 218 to shift positionally from the bottom 221, forced insertion due to misalignment is avoided, preventing damage to the storage device during assembly. Furthermore, after assembling the storage cover 218 to the bottom 221, deformation of the overall shape (such as loosening deformation) can be suppressed. Additionally, the entrainment of the ejector 216 (parachute or glider, etc.) when assembling the storage cover 218 to the bottom 221 can be prevented.

[0096] Alternatively, when using the safety device 300, the structure of the storage cover and bottom that includes the pin component and support component in the above embodiment may not be provided.

[0097] In addition, if the cylindrical portion 218d is provided with a hole 218e, the hole 218e is easier to form if the storage cover 218 containing the cylindrical portion 218d is molded with resin.

[0098] Symbol Explanation

[0099] 1. 201 Actuator

[0100] 2. 202 abutment

[0101] 2A, 202A Cylindrical components

[0102] 2B, 202B flange portion

[0103] Holes 2a, 10c, 13, 18a1, 18a2, 25, 21g, 113, 202a, 210c, 213, 225

[0104] 2c, 202c insertion ports

[0105] Piston components 10, 110, 210

[0106] 10a, 210a Main body

[0107] 10b, 210b rod-shaped part

[0108] 10d, 210d front end

[0109] 10e, 210e grooves

[0110] 11, 211 Sealing components

[0111] 14, 114, 214 cylinders

[0112] 16, 116, 216 Ejected material

[0113] 17, 117, 217 Gas generators

[0114] 17b and 217b electrodes

[0115] Storage lids in sizes 18, 118, and 218

[0116] Top plate section of 18a, 118a, 218a

[0117] 18b, 118b, 218b, 221b Side

[0118] 18b1, 118b1 First Through Hole

[0119] Fractured parts of 1862 and 118b2

[0120] 18c, 118c disc section

[0121] 21, 121, 221 (bottom)

[0122] 21a Protrusion

[0123] 21b Support component

[0124] 21c, 21d Second through holes

[0125] 21e and 221e reinforced components

[0126] 21f cylindrical protrusion

[0127] 22, 122 pin components

[0128] 22a Head

[0129] 22b Rod-shaped part

[0130] 23, 28, 123, 228 bolts

[0131] 24 and 124 nuts

[0132] 30 aircraft

[0133] 31, 131 machine body

[0134] 33. Legs

[0135] Connecting components 41, 42, 43, 141, 142

[0136] Safety devices for 100, 200, and 300

[0137] 118d, 218d cylindrical part

[0138] Holes 218e, 251a, 252a, 260a

[0139] 218f Claw

[0140] 218g guide section

[0141] 221a Base plate

[0142] 250 Fastening components

[0143] 251 Contact Department

[0144] 252 Connecting part

[0145] 260 Protrusion

Claims

1. A safety device, characterized in that, have: A bottomed cylindrical component having an open end portion at one end and a top plate portion at the other end; The bottom, which is initially mounted on the open end of the bottomed cylindrical component, is configured to open the open end during operation; An actuator located at the bottom has a sliding component and a power source. The power source generates a driving force that causes the bottomed cylindrical component to be ejected by sliding the sliding component towards the top plate and impacting it. The ejected material is contained between the bottomed cylindrical component and the bottom; The first connecting component has one end connected to the ejected material and the other end connected to the bottomed cylindrical component; and The second connecting component has one end connected to the sliding component, the bottom or external load, and the other end connected to the ejector. When the bottomed cylindrical component is ejected, the ejected material is also pulled out and ejected through the first connecting component. The power source is a gas generator. The sliding component is positioned at the point where it impacts the center of the top plate portion of the bottomed cylindrical component during operation. The central portion is a part or component with higher strength than the parts outside the central portion and has impact strength to resist the impact when the sliding component strikes the central portion.

2. The safety device according to claim 1, characterized in that, The other end of the first connecting component is connected to a portion of the central portion other than the point where the sliding component impacts. The central portion is a part or component with higher strength than the parts outside the central portion and has impact strength to resist the impact when the first connecting member is stretched during operation.

3. The safety device according to claim 1 or 2, characterized in that, The bottom has a protrusion at its edge that faces the side wall of the bottomed cylindrical component before operation. It also includes a locking mechanism, which engages the sidewall of the opening end with the protrusion by inserting a pin into a first through hole in the sidewall portion of the opening end that extends toward the center of the bottomed cylindrical component and a second through hole in the protrusion that extends toward the center of the bottom. The locking mechanism engages the sidewall portion of the opening end with the protrusion by means of a snap-fit ​​mechanism that utilizes the elasticity of the material constituting the bottomed cylindrical member or the protrusion.

4. An aircraft, characterized in that, The payload is an aircraft. It possesses: Organism; The safety device according to any one of claims 1 to 3, combined with the said body; and A propulsion mechanism that is combined with the body and propels the body.

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