Fall auxiliary device of flight body

Abstract

To provide a technique which allows stable implementation of temporary fixing of a parachute related member, and parachute opening operation, at the time of emergency falling of a drone.SOLUTION: In a fall auxiliary device of a flight body, a flight body and a parachute are coupled via a connection member, magnets are attached to positions in the flight body or slack positions in the connection member or positions in the parachute, the slack positions in the connection member or the positions in the parachute are temporarily fastened. When the flight body falls, the fall auxiliary device of the flight body releases the temporary fastening of the magnets to detach the parachute from the flight body and to open the parachute, so that the falling flight body is suspended.SELECTED DRAWING: Figure 3

Description

[Technical field]

[0001] The present invention relates to a parachute used when an aircraft such as a drone falls or crashes. This relates to fall assistance devices for vehicles, etc. [Background technology]

[0002] In recent years, drones, which are equipped with multiple rotors, have come to be used more frequently in the fields of photography, delivery, and the like, and are expected to become even more widespread in the future. Fixed-wing drones are also considered promising for delivery drones, and measures are required for emergency drops due to unexpected events occurring during practical drone flight operations. As a measure against this, the present inventor has developed a technology that takes into account the use of a parachute as a safety device in the event of an emergency drop. As is well known, a parachute system is composed of a canopy, which is the main body, a number of suspension lines connected to the canopy, bridle cords connected to the suspension lines, and the like, and is packaged and attached to the aircraft, and is opened by utilizing air resistance when in use. This opening operation must be performed smoothly and without any problems.

[0003] When a drone crashes, its flight attitude and behavior are unstable and difficult to predict. First, the parachute deployment during the crash is not possible. The following describes the problems that the inventors have analyzed at the beginning of the parachute system. During normal drone operation, the drone is folded and stored inside the drone body. It is necessary to operate without any problems in the event of an emergency crash of the loan. The tension lines and several types of bridle cords are tensioned when the parachute opens. When not in operation, the drone is fixed to the drone body in a relaxed state without tension. It is difficult to predict the flight attitude of the aircraft when an abnormality occurs, and it is necessary to keep the aircraft in a fixed wing. For example, if the aircraft is nose-down and tail-up, the parachute will be released. When launching, it is not always possible to take a course that launches the ball to the upper side of the flying object. When the deployed parachute passes under the aircraft, it opens on the underside of the aircraft. In addition, the tail and other protrusions will allow the aircraft to be mounted on the upper surface of the aircraft. The bridle cord, harness, etc. may get caught and the parachute may not function properly. The parachute was not fully deployed and was not able to open, making it unsafe for a fall. Leave the rest.

[0004] In addition, loose parts such as bridle cords may cause the parachute to open. When an unexpected posture or behavior occurs, the drone is drawn due to air resistance from an unexpected direction. In the worst case scenario, the propeller may get caught on a protruding part of the propeller, even if it is still functioning properly. This causes the parachute to get caught in the water and prevent it from extending as planned. This can cause the pilot chute and main parachute to fail to open normally. Connect the suspension line and the bridle cord to the pilot seat first. The suspension line and bridle cord that are generated by the opening of the umbrella are A system that pulls out the main parachute and opens it using the tension of the Stem) also, the above suspension line, bridal cord loose parts If the pilot chute (the small part for pulling out the main parachute) becomes stuck, Insufficient deployment of the main parachute or insufficient extension of the main parachute Incomplete or non-existent deployment of the main parachute occurs. In some cases, the shape of the chute may be deformed or tension may be gradually applied. During the process, the loose part swings in an unexpected direction, causing further snagging. When this happens, the pilot chute cannot open completely. After that, the main parachute could not be opened, which caused the accident. Also, when delivering cargo by drone, paper parachutes are required. It is being considered to drop cargo at a designated location on the Measures for installation and deployment are currently being explored.

[0005] In order to prevent the above-mentioned unexpected situation from occurring, the inventor has attached a rubber band to the main body of the aircraft. I tried to temporarily secure the suspension line and bridle cord, but this rubber band If the force is too strong, the parachute will not open smoothly when you need it. The parachute is not pulled out properly, or is held in place too tightly and the parachute is pulled out halfway. It was found that there were concerns that the sound would not be able to be heard. If the aircraft is fastened too tightly, the temporary fastening may be released simply by the wind pressure during flight. Furthermore, rubber bands are prone to deterioration and are difficult to attach to aircraft. Another drawback is that there are few places to hang out. [Prior art documents] [Patent documents]

[0006] [Patent Document 1] JP 2005-29366 A [Patent Document 2] Patent No. 7001243 [Patent Document 3] JP 2022-54387 A Based on the above understanding of the problem, the present inventor came up with the idea of ​​using a temporary fixing method using magnets, and arrived at this invention. Generally, technologies for fixing cords with magnets are disclosed in Patent Documents 1 and 2, and Patent Document 3, Nos. 0113 to 0129 and 12A to 12D, disclose examples of using a magnetic coupling mechanism for operating the knob of an opening and closing mechanism of an aircraft cabin for transporting people and objects. However, the problems and solutions in the present invention are not disclosed at all. Summary of the Invention [Problem to be solved by the invention]

[0007] Based on the above analysis, the present invention aims to provide technology that can stably open a parachute, which is a suspension member used to drop an aircraft, in the event of an emergency drop of a drone (when an emergency situation makes it difficult to continue controlling or flying), etc., and technology that prevents slack parts of the parachute or connecting structures such as suspension lines and canopies, which do not have tension before opening, from suddenly gaining tension when exposed to the wind, causing undesirable effects. In addition, we provide technology suitable for temporarily fastening and deploying parachutes when dropping cargo. do. [Means for solving the problem]

[0008] The present invention relates to a flying object having a suspending member for dropping the flying object attached thereto, The body and the hanging member are connected by a connecting member, and a part of the flying body or the connecting member A magnet is attached to a part of the body to temporarily fix the loose part of the connection body, When the suspension body falls, the tension applied to the suspension member or the connection structure is The temporary fixing of the magnet is released, and the hanging member and the connecting measure are attached to the flying The flying object is then detached from the flying body and suspended by the suspension member. The present invention provides a landing assist device for an aircraft having the following features: The first magnet and the second magnet are separately mounted, and the first magnet is and the magnetic force of the first magnet is The magnetic force of the second magnet is smaller than that of the first magnet. a connecting member for connecting the bridle of the parachute to the The present invention provides a structure in which the cable is suspended from the aircraft payload. A suspension member is attached to the aircraft, and the aircraft payload and the suspension member are connected by a connecting member. A magnet is attached to the hanging member to temporarily hold a part of the hanging member in place. When the aircraft payload falls, the magnetic field is generated by the tension applied to the hanging member. The temporary fixing of the stone is released to expand a part of the hanging member, and the hanging part The drop member and the connecting member are used to suspend the payload during the drop. The present invention provides a lower auxiliary device. In addition, in this device, a hanging member is attached to the flying object. A parachute is attached to the ground, and a part of the parachute is temporarily fixed by a magnet. A configuration in which the parachute is made of a paper material; a portion of the parachute is A configuration is provided that is a folded canopy portion. Effect of the Invention

[0009] According to the present invention, a magnet (magnet) is attached to a connecting measure such as a harness or cord for fixing the parachute or a part of the flying object to temporarily fix the loose part of the connecting measure, and the magnet's attraction can be used to temporarily fix the loose part of the connecting measure, so that the loose part of the connecting measure does not have tension before the parachute is deployed, and the magnet's magnetic attraction can temporarily fix it in an ideal position and shape, and when the parachute needs to be deployed, the magnetic force can be shaken off and the parachute can be reliably detached and extended from the flying object, generating appropriate tension. Therefore, due to the pulling action caused by the tension of the connecting measure, the connecting measure and part of the parachute do not interfere with each other during the process of pulling the parachute out of the packaging and deploying it, and the parachute is released without getting caught on the body of the flying object such as a drone in an abnormal state, so the parachute can be opened and deployed smoothly as planned, and the function of assisting the flight of the flying object can be reliably demonstrated. In addition, in the present invention, the magnets used as fasteners are less restricted in the locations where they can be attached to the aircraft, and it is easy to select or create magnets with appropriate magnetic strength in consideration of various conditions of use, such as the length, the lift obtained from the size of the parachute, and the normal flight speed of the aircraft, making it possible to temporarily fasten and release the parachute as designed. Furthermore, if a part of the parachute is temporarily fastened with a magnet, the parachute can be opened and deployed from a half-open state, improving the reliability of the parachute opening and shortening the time required for opening. Furthermore, the parachute starts to unfold from a half-open state where it is not completely folded, so the impact during the unfolding operation is small and the parachute opens smoothly. By utilizing such a half-open state, it becomes possible to use a parachute made of paper, which has not been used as a parachute material until now. [Brief description of the drawings]

[0010] [Figure 1] FIG. 13 is a diagram illustrating a state before the cord is temporarily fastened to the drone body in one embodiment of the present invention. [Diagram 2] FIG. 13 is a diagram showing an example of the cord temporarily fastened state. [Diagram 3] 13 is a diagram showing the start of releasing the temporarily fastened state of the cord. FIG. [Figure 4] FIG. 13 is a diagram showing still another example of the temporarily fastened state of the cord. [Diagram 5] FIG. 13 is a perspective view of an example of the configuration of a belt and magnets used for temporary fastening. [Figure 6] An exploded view of an example of the belt and magnet configuration used for temporary fastening. [Figure 7] FIG. 13 is a diagram showing another example of the use of the magnet for temporarily fastening the cord. [Figure 8] FIG. 13 is a diagram showing yet another example of the use of magnets for temporarily fastening the cord. [Figure 9] FIG. 2 is a diagram showing the parachute opening and deployment using the temporary cord fastening mechanism of the present invention. [Figure 10] FIG. 2 is a diagram showing the parachute opening and deployment using the temporary cord fastening mechanism of the present invention. [Figure 11] FIG. 2 is a diagram showing the parachute opening and deployment using the temporary cord fastening mechanism of the present invention. [Figure 12] FIG. 2 is a diagram showing the parachute opening and deployment using the temporary cord fastening mechanism of the present invention. [Figure 13] FIG. 2 is a diagram showing the parachute opening and deployment using the temporary cord fastening mechanism of the present invention. [Figure 14] FIG. 2 is a diagram showing the parachute opening and deployment using the temporary cord fastening mechanism of the present invention. [Figure 15] FIG. 2 is a diagram showing the parachute opening and deployment using the temporary cord fastening mechanism of the present invention. [Figure 16] FIG. 2 is a diagram showing the parachute opening and deployment using the temporary cord fastening mechanism of the present invention. [Figure 17] FIG. 2 is a diagram showing the parachute opening and deployment using the temporary cord fastening mechanism of the present invention. [Figure 18] FIG. 2 is a diagram showing the parachute opening and deployment using the temporary cord fastening mechanism of the present invention. [Figure 19] FIG. 19 is a diagram showing the detailed situation of parachute opening and deployment using the temporary cord fastening mechanism shown in FIGS. 9 to 18. [Figure 20] FIG. 19 is a diagram showing the detailed situation of parachute opening and deployment using the temporary cord fastening mechanism shown in FIGS. 9 to 18. [Figure 21]FIG. 19 is a diagram showing the detailed situation of parachute opening and deployment using the temporary cord fastening mechanism shown in FIGS. 9 to 18. [Figure 22] FIG. 19 is a diagram showing the detailed situation of parachute opening and deployment using the temporary cord fastening mechanism shown in FIGS. 9 to 18. [Diagram 23] FIG. 13 is a diagram showing another example of a parachute opening and deployment using the parachute temporary fastening mechanism according to the present invention. [Figure 24] FIG. 13 is a diagram showing another example of a parachute opening and deployment using the parachute temporary fastening mechanism according to the present invention. [Diagram 25] FIG. 13 is a diagram showing another example of a parachute opening and deployment using the parachute temporary fastening mechanism according to the present invention. [Figure 26] FIG. 13 is a diagram showing another example of a parachute opening and deployment using the parachute temporary fastening mechanism according to the present invention. [Figure 27] FIG. 13 is a diagram showing another example of a parachute opening and deployment using the parachute temporary fastening mechanism according to the present invention. [Figure 28] FIG. 13 is a diagram showing another example of a parachute opening and deployment using the parachute temporary fastening mechanism according to the present invention. [Figure 29] FIG. 13 is a diagram showing another example of a parachute opening and deployment using the parachute temporary fastening mechanism according to the present invention. [Diagram 30] FIG. 13 is a diagram showing another example of a parachute opening and deployment using the parachute temporary fastening mechanism according to the present invention. [Diagram 31] FIG. 13 is a diagram showing another example of the parachute opening and deployment using the parachute temporary fastening mechanism according to the present invention. [Diagram 32] FIG. 13 is a diagram showing another example of the parachute opening and deployment using the parachute temporary fastening mechanism according to the present invention. [Diagram 33] FIG. 13 is a diagram showing another example of the parachute opening and deployment using the parachute temporary fastening mechanism according to the present invention. [Diagram 34] FIG. 13 is a diagram showing another example of the parachute opening and deployment using the parachute temporary fastening mechanism according to the present invention. [Diagram 35]FIG. 13 is a diagram showing another example of the parachute opening and deployment using the parachute temporary fastening mechanism according to the present invention. [Diagram 36] FIG. 13 is a diagram showing another example of the parachute opening and deployment using the parachute temporary fastening mechanism according to the present invention. [Figure 37] A diagram showing the assembly of the paper parachute. [Figure 38] A diagram showing the assembly of the paper parachute. [Figure 39] A diagram showing the assembly of the paper parachute. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0011] As shown in FIG. 1, magnets 3 are embedded in the sewn portion 2 of the bridal cord 1 (four magnets in FIG. 1), and four magnets 5 are fixed to the main body 4 of the drone body by a belt 6. The belt 6 has magnets 5 fixed thereto as shown in FIG. 5, and Velcro (registered trademark) or Magic Tape (registered trademark) 7, 8 are provided at both ends as shown in FIG. 6, which are used to wrap and fix the belt 6 around the body 4. The magnets 3 are aligned and sewn in the position and direction of the bridal cord 1 to be fastened, and the magnets 5 are also aligned and fixed in the position and direction of the bridal cord 1 to be fastened. Next, the magnets 3 and 5 are hooked together by utilizing the attractive force between them (the attractive force between the N pole and the S pole), and the magnets 3 and 5 are temporarily bonded together as shown in FIG. 2, resulting in a state in which the bridal cord 1 is temporarily fixed to the main body 4 of the drone body. 9 indicates the direction of connection to the drone body or the main parachute. This state is maintained during normal flight of the drone. When the drone is launched in a direction 10 (the direction in which it is connected to the pilot chute or parachute) that connects to the bridal cord 1 and a force is generated in this diagonal pull-out direction 10, causing tension to be applied to the bridal cord 1, and as shown in Figure 3, the temporary fixation release begins from magnets 3 and 5 on the direction 10 side. By designing and adjusting the magnetic forces of magnets 3 and 5, it is possible to maintain the temporary fixation of the bridal cord 1 during normal drone flight, and to orderly release the temporary fixation of magnets 3 and 5 due to the tension in direction 10 that occurs when an emergency drop begins, allowing the bridal cord 1 to be removed from the magnets and pulled out in an orderly manner. After passing through the state shown in Figure 3, the temporary fixation of the magnets is completed, and the bridal cord 1 is in a state in which it can be smoothly pulled out along the line in which the magnets were previously arranged.

[0012] If the slack portion of the bridal cord 1 is long, it is possible to fold the bridal cord 1 as shown in FIG. 4, temporarily fix the double structure of the magnets 3 of the bridal cord 1 to each other, and deal with the slackness of the cord 1. In addition to the structure in which the magnet 5 is fixed to the belt 6 shown in FIGS. 5 and 6, it is also possible to use a belt-shaped magnet to give the function of the magnet 5 to the belt itself. If it is difficult to embed a magnetic part in the bridal cord, it is also possible to attach the magnet 3 to the bridal cord 1, or to arrange the magnet 3 on the bridal cord 1 and sew an overcoat member 18 around the cord 1 as shown in FIG. 7, and fix the four magnets 3 aligned with this member 18. Furthermore, a heat-shrinkable resin may be used as the overcoat member 18, and the four magnets 3 may be fixed by applying heat to shrink them. This fixing method may also be used for each of the four magnets 3. In particular, the magnet mechanism fixed to the drone body 4 may be a flat magnet sheet 38 attached to any part as shown in FIG. 8 instead of a belt, which makes it possible to expand the range of locations where magnets can be attached.

[0013] As is clear from the mechanism shown in Figures 1 to 4 and 8, before the parachute opens, the bridle cord 1, which is not under tension and is loose, can be temporarily fixed in an ideal position and shape by the magnetic attraction of magnets 3 and 5, and when the parachute begins to open, the magnetic force can be adjusted to allow the parachute to open reliably by overcoming the magnetic force of the temporary fixation due to the air resistance force generated when the parachute 1 is launched and begins to open, or the wind pressure caused by natural falling. The mechanism shown in Figures 1, 4 and 8 can be applied to parts of suspension lines, harnesses, etc. that need to be folded and slack removed, and to connection parts that need to be temporarily fixed, and by coordinating the order of release of the temporary fixation, it can contribute to the realization of an induced and smooth parachute opening. The magnetic force of the magnets that serve as the temporary fixing mechanism can be designed and selected to have an appropriate strength in consideration of various conditions of use, such as the length of the connection parts, the lift obtained from the size of the parachute, and the normal flight speed of the aircraft. For example, in FIG. 2, if the magnetic force of the magnet installed on the direction 10 side is designed to be smaller than the magnetic force of the magnet installed on the direction 9 side, the release operation in FIG. 3 will be performed more smoothly. In addition, as a temporary fixing mechanism, a sheet-shaped magnet or a metal piece that reacts to magnetic force can be attached inside or outside the bridal cord and harness, and a tablet-shaped or rubber sheet-shaped magnet or metal plate can be attached to the surface of the aircraft, making it easy to design the guideway for the bridal cord and harness. With the above mechanism, the required performance as a parachute system, that is, the bridal cord assembled from multiple suspension lines and multiple or several types, is tensioned to form a planned shape when opened in operation, and is not tensioned when not in operation, and is in a slack state, it is possible to realize a temporary fixing structure along a part of the drone body body surface where no obstacles exist when the bridal cord is operated.

[0014] An example of parachute deployment (two-stage parachute system) in a fixed-wing drone using the present invention will be described with reference to Figs. 9 to 22. For example, the bridal cord 1 to which the magnet 3 is attached using the mechanism shown in Fig. 2 is temporarily fixed to the body 4 and the tail 45 by the temporary fixing action of the magnet 3 and the magnet 5 of the drone main body 4 as shown in Fig. 9. The bridal cord 1 connects the inner container 17 in which the main parachute 14 is folded and stored and the pilot chute 12 folded and stored in the capsule, and a part of it is disposed under the tail 45 and folded back at the folding point 19 by the magnet hook. The outer container 16 that contains and packs the inner container 17 in which the main parachute 14 is folded and stored is attached to the center of the main wing 44 of this drone. In addition, for example, magnets are also embedded in the harness 15, and four bridal cords (harnesses) 15 that connect the main parachute to the aircraft are temporarily fixed to the surface of the aircraft by, for example, the magnet mechanism shown in Fig. 8. Fig. 19 shows the details of this state. In the case of an aircraft shape having a tail unit as seen in fixed-wing aircraft, for example, when there is a high possibility that the pilot chute will be ejected from below the tail unit, a bridle cord 1 is passed in advance from the lower surface side of the tail unit 45 to the upper surface of the tail unit 45 and temporarily fixed therein, as shown in Figures 9 and 19.

[0015] Since it is essential that the parachute be connected to the aircraft by a bridle cord, it is necessary to pre-wire the appropriate length and number of bridle cords, and if these become loose or come off due to wind pressure during flight, the bridle cord itself will become entangled with part of the aircraft due to the air resistance generated when it receives wind pressure, causing the parachute to stop functioning properly. According to the present invention, by attaching multiple magnets to the bridle cord 1, harness 15, and the aircraft side, these loose parts can be temporarily fixed using the attraction of the magnets.

[0016] When the nose of the flying object points downward and an emergency descent begins, the pilot chute 12 is ejected below the tail 45 in the bridal cord release direction 11, as shown in Figures 10 and 20. This starts the release of the temporary fixation of the magnet mechanism of the cord 1, and the pilot chute 12 separates from the aircraft, and due to air resistance, begins to deploy while pulling the cord 1, as shown in Figures 11 and 21. The bridal cord 1 shakes off the magnetic force of the temporary fixation and is pulled out along the line where the magnets are arranged in advance, is pulled out from below the tail 45, and then is pulled out according to the magnets arranged on the upper side of the aircraft, making it possible to guide the pilot chute 12 and bridal cord 1 in the direction of normal withdrawal without wrapping them around the tail 45.

[0017] As shown in FIG. 12, the pilot chute 12 rises, unfolds, and opens in the direction of the arrow X, and the remaining bridal cord 1 portion temporarily fixed to the aircraft body by a magnet is released by the attractive force of the pilot chute 12, and the inner container 17 storing the main parachute is in a state where it starts to be pulled out as shown in FIG. 13. The main parachute is pulled out from the container 17 by the wind pressure of the fall, and as shown in FIG. 14, the main parachute 14 begins to unfold, and then as shown in FIG. 15, the main parachute 14 opens, and the bridal cord 13 (both ends of which are connected to the main parachute 14 and the harness 15) stored in the container 17 is also pulled out. Then, as shown in FIG. 16, the bridal cord 13 pulls the harness 15, and the harness 15, whose slack portion is temporarily fixed to the aircraft body, is released from the aircraft body, and the aircraft is suspended by the main parachute 14 as shown in FIG. 17. In this state, the aircraft is in a stable falling state in an almost horizontal posture as shown in FIG. 18. In the event that the main parachute 14 or its inner container 17 launched or pulled out from an aircraft in a nose-down crash posture may collide with the tail, the bridle cord is temporarily secured in a folded state at the front of the aircraft with a magnet having strong magnetic force, and the pulling force of the pilot chute opening has the effect of pulling up the side of the aircraft closer to the nose, creating a distance between the bridle cord 1, which is connected to the pilot chute 12 and exerts tension, and the tail 45, so that when the main parachute 14 or its inner container 17 is subsequently pulled out, a collision with the tail 45 can be reliably avoided.

[0018] Usually, the canopy and suspension lines of a parachute are required to be flexible to absorb the shock of pressure caused by the sudden expansion and deployment when the parachute is opened, and are made of petroleum-based fiber fabrics, tapes, and belts (nylon, polyester, etc.), which are reused after use. However, in the case of drone delivery, it is also being attempted to use low-cost parachutes that are not collected after use, and a landing support device using the present invention suitable for this case is described below. This device uses an original "half-open parachute" structure devised by the inventor.

[0019] Other deployment and opening examples of a paper parachute for a drone using the present invention will be described with reference to Figures 23 to 39. The paper parachute 60 used in this example, shown in the opened state in Figure 23, is classified as a cross-type parachute and is suitable for use in disposable applications, and when deployed, the upper part 71 of the canopy is flat and has four side panels 70 and a slit 51 surrounded on both sides by opening and closing parts 50. As shown in Figure 30, this parachute is used to suspend a box for storing transport items when dropping transport cargo mounted on the bottom of a drone (not shown).

[0020] The assembly and deployment of this parachute will be described. A flat paper body processed into the shape of FIG. 24 is folded at the folding lines 25, 26, and 43 (which exist in each of the four directions). In more detail, in the state of FIG. 24, it is folded downward at the four folding lines 25 and 43 and upward at the four folding lines 26, and the suspension line 30 is attached to the part that will become the slit opening and closing part 50, forming the half-open state of FIG. 25. As shown in FIG. 26, this paper parachute 60 is temporarily fixed in place by attaching or sewing a plurality of magnets 27 (for fixing the folded shape) to a part of the canopy part 24. This parachute 60 is in a half-open folded state suitable for the opening of the parachute, and can be installed without using an inner container. When the canopy or a part of the canopy is folded using the magnet catch, it is possible to fold and temporarily fix it in a half-open storage box for transport cargo rather than completely packing it, and by attaching a plurality of magnets to a part of the canopy part of the parachute or inserting them by sewing or other means, it is possible to fold the parachute in accordance with its opening without using an inner container.

[0021] The rectangular half-open parachute 60, which is folded as shown in FIG. 25 and further has the suspension line 30 attached, is installed on the rectangular transport storage box 29 (to which the hanging harness 31 is attached) so as to envelop the upper part of the transport storage box 29 storing the items to be dropped, as shown in FIG. 26. When the storage box 29 starts to be dropped from the flying drone (FIG. 27), the box 29 falls due to the wind pressure generated by natural fall and the line 30 is pulled, releasing the temporary fastening of the magnet 27 of the canopy part 24. Then, a part of the canopy is pulled downward by the suspension line 30 connected to the box 29 that has started to fall, and is folded along the boundary lines 52-54, and a downward side panel 70 starts to be formed from the upper part 71 of the canopy part as shown in FIG. 29. That is, after starting to fall as shown in Fig. 28, the parachute 60 in a half-open state passes through the deployment start state shown in Fig. 29, and then reaches the opened state shown in Fig. 23, and a stable falling state is obtained with the box 29 suspended from the opened parachute 60 via the harness 31, as shown in Fig. 30. The rectangular half-open paper parachute body shown in Figs. 25 to 28 starts to deploy when it opens from the half-open state, improving the reliability of opening and shortening the time required for opening.

[0022] Furthermore, this parachute body opens smoothly because the impact during deployment is smaller than that of a completely folded nylon cross-type parachute. By utilizing this half-open state, it is possible to use a parachute made of paper material, which has not been used as a parachute material until now. In addition, when opening from this half-open state, even if the parachute is made of paper material, which is less flexible, it is less likely to burst when opening. In addition, paper parachutes also eliminate concerns about opening due to static electricity that is expected in nylon materials. Furthermore, paper materials are easy to manufacture at low cost and can be easily incinerated after use, making them suitable for use as parachutes for dropping goods and delivering goods that are not collected and reused after use. In addition, the "half-open parachute" used in this invention may be made of thin vinyl material other than paper, and a thin vinyl parachute manufactured in the same manner as the above-mentioned paper parachute can exhibit the same functions and effects as a paper parachute.

[0023] The advantages of the "half-open parachute" mentioned above are as follows: 1: Unlike conventional parachutes, the parachute is not fully folded, but rather opens in a shape that is half-open, and does not have a bulky or tall umbrella shape. It is possible to create a tightly fitting shape that mimics the shape of the top of a shipping container. 2: Unlike a normal parachute, which must be opened and deployed from a fully folded state, a "half-open parachute" begins opening from a half-open state, shortening the opening time and eliminating the risk of failure to open the parachute. 3: With a fully folded parachute, the parachute does not begin to open until it has reached its natural falling speed, and so requires a material that can withstand the impact of air resistance caused by sudden braking. However, with a "half-open parachute," the braking function is exerted immediately after the start of the descent, so the parachute is subjected to less impact and can be made from inexpensive paper or thin vinyl materials. 4: With a "half-open parachute," the central part of the parachute canopy, where air resistance is concentrated, can be stored without being folded. Therefore, air resistance is already strong from the initial speed of natural fall, and no speed difference occurs when the parachute opens. 5: Using this parachute, it is possible to deliver packages by dropping them from a drone in flight, and because it is excellent for incineration, it can be disposed of without the need for retrieval. 6. The manufacturing process for this parachute is simple, and it has excellent specifications for the desired sinking speed after deployment according to the weight and volume of the luggage, as well as the ease of adjusting the shape.

[0024] An example of increasing the speed of opening and improving the reliability is explained in FIG. 12. An additional component is the opening-assistance reinforcing frame 28 made of a lattice-shaped paper component shown in FIG. 31. In this case, as shown in FIG. 32, a reinforcing frame 28 slightly larger than the box 29 containing the transported goods is installed between the paper parachute 60 and the box 28. 33 is a paper ribbon attached to the upper part of the frame 28. The drone is mounted in the state shown in FIG. 32, and the unfolding and opening operations shown in FIG. 33 to 36 are performed. With this structure, air 80 from below flows in from the periphery of the frame 28, and the opening of the parachute 60 begins, allowing the opening to be completed more quickly and reliably. This makes it possible to obtain a smoother and more accurate opening. Note that sponge cut to a shape that matches the internal shape of the parachute can also be used as the reinforcing frame 28. The opening-assistance reinforcing frame 28 can be made slightly larger than the top surface area of ​​the delivery container to increase the efficiency of air flowing in from the bottom, allowing the parachute to open completely as quickly as possible. In other words, if the parachute is allowed to fall naturally with the molded frame 28 placed on the underside of the central part of the parachute, it is possible to further increase the efficiency of the canopy opening in its normal shape. After the parachute opens, the reinforcing frame 28 does not come into contact with the underside of the canopy, and does not impede the rise of the central part due to the natural expansion caused by air resistance from below. The ribbon 33 prevents the upper part 71 of the canopy from deforming into a concave shape after the parachute opens, and contributes to creating a space that serves as a gap between the frame 28 and the canopy 7.

[0025] Figures 37 to 39 show the details of the folding and assembly method for making a half-open paper parachute. The paper member in the state shown in Figure 24 is folded upward at four mountain fold lines 25 as shown by arrow 39 (Figure 37), then folded upward at four valley fold lines 26 as shown by arrow 40 (Figure 38), and further folded downward at mountain fold lines 43 as shown by arrow 41 (Figure 39) to form the canopy portion 24, and the suspension lines 30 are attached to form the half-open parachute 60 shown in Figure 25. As mentioned above, this parachute body unfolds and opens as shown in Figures 26 to 30. [Industrial Applicability]

[0026] According to the present invention, in the process of pulling out the drop-assistance parachute of an aircraft such as a drone from its packaging and opening it, the connecting structure and part of the parachute do not interfere with each other and are released without getting caught on the body of the aircraft such as a drone, so the parachute can be opened and deployed smoothly as planned, the drop-assistance function of the aircraft can be reliably performed, and it can contribute to the safe operation of the aircraft. In addition, the present invention contributes to the use of parachutes made of paper, which has not been used as a parachute material until now, by utilizing a half-open parachute that has a mechanism for temporarily fastening part of the parachute with a magnet. [Explanation of symbols]

[0027] 1 Bridal Code 2 Sewing part 3. Bridal cord magnet (bridal cord sewn in) 4 Drone body 5 Magnet for fixed side (belt for fixing to drone body sewn in) 12 Pilot Shoot 13 Bridal Code 14 (Main) Parachute 16 Pilot chute Packing state Outer container 17 Main parashoe inner container 24 Parachute canopy part 25 43 Mountain fold 26 Valley fold 27 Magnet for fixing the folded shape 30 Suspension Line 31 Harness 51 Slit 52 53 54 55 Border 60 Parachute 70 Side Panel 71 Upper part of the canopy 72 Lower part of the canopy 80 Air flow direction

Claims

1. A hanging member is attached to the flying object, and the flying object and the hanging member are connected to a connecting member. and a part of the aircraft or a part of the connecting member is connected to the connecting member. A magnet is attached to temporarily fix the loosened portion, and when the flying object falls, the hanging portion The magnet is released from the temporary fixing by the tension applied to the material or the connecting member. The suspension member and the connection body are detached from the flying object, and the suspension A method for dropping a flying object, comprising: suspending the flying object during the drop by a lifting member; Auxiliary equipment.

2. The first magnet and the second magnet are separately attached, and the first magnet is The first magnet is disposed closer to the suspending member than the second magnet.

2. The method according to claim 1, wherein the magnetic force of the first magnet is smaller than the magnetic force of the second magnet. A landing assistance device for aircraft.

3. The suspending member is a parachute attached to the flying object, and the connecting member is The fall support of the flying object according to claim 1, which is a bridal cord of a parachute. Auxiliary equipment.

4. A suspension member is attached to the aircraft payload, and the aircraft payload and the suspension member The members are connected to the hanging member by a connecting member, and a part of the hanging member is When the aircraft payload falls, the suspended object is attached to the aircraft. The magnet is released from the temporary fixing by the tension applied to the member, and the hanging part A part of the material is deployed, and the hanging member and the connecting member are used to support the falling object. A drop assistance device for an aircraft, characterized by suspending the aircraft payload.

5. The suspension member is a parachute attached to the flying object, 5. The drop assist device for a flying object according to claim 4, wherein a part of said device is temporarily fixed by a magnet.

6. 6. The parachute of claim 5, wherein the part of the parachute is a folded canopy portion. A landing assistance device for flying objects.

7. 6. The landing assist device for a flying object according to claim 5, wherein the parachute is made of a paper material.

Images