JP2023154972A - Flying object equipped with forced exhaust mechanism - Google Patents

Abstract

To enable the lowering of height of a flying object more quickly than a conventional art.SOLUTION: A flying object 1 is a gas balloon flying by buoyancy of lightweight gas filled in a gas bag 11. A pulley 17 is attached inside the gas bag 11, and a rope body 18 is wound around the pulley 17. One end portion of the rope body 18 is attached to a bottom part of the gas bag 11, and the other end portion is attached to a winch 19 through a hole H1 opening on the bottom part of the gas bag 11. If the winch 19 winds up the rope body 18, the gas bag 11 is crushed in a vertical direction to forcibly exhaust the lightweight gas in the gas bag 11. Consequently, the flying body 1 can quickly lower height.SELECTED DRAWING: Figure 2

Description

The present invention relates to a flying object that flies due to buoyancy generated in an air bladder.

2. Description of the Related Art Flying objects such as balloons and airships fly due to the buoyancy generated in air sacs filled with gas that is lighter than the outside air. Hereinafter, a flying object in the present application refers to a flying object that flies due to the buoyancy generated in an air bladder whose interior is filled with a gas lighter than the outside air.

One way to lower the altitude of a flying object is to discharge some of the gas inside the air sac to the outside of the air sac, thereby making the buoyant force on the air sac smaller than the gravity of the entire balloon (mainly the balloon's load). .

For example, Patent Document 1 is a patent document that discloses a mechanism for discharging gas inside the air bladder to the outside of the air bladder. Patent Document 1 describes a mechanism for exhausting gas inside the air bag to the outside of the air bag by opening and closing a valve using an actuator in order to adjust the altitude of a flying object.

Japanese Patent Application Publication No. 2002-308189

When using a method such as the mechanism described in Patent Document 1, in which a valve is provided in the air sac and the valve is opened to exhaust the gas inside the air sac to the outside of the air sac, gas naturally flows from inside the air sac to the air sac due to the pressure difference between the inside and outside of the air sac. There is no choice but to wait for the projectile to move outside, and the altitude of the projectile cannot be lowered quickly.

In view of the above circumstances, an object of the present invention is to provide a means for lowering the altitude of a flying object more quickly than the conventional technology.

The present invention provides an air bag having a hole at the bottom and filled with a gas lighter than the outside air, a pulley attached to the inner surface of the air bag at the top of the air bag, and one end of the air bag. and a cable body attached to the bottom of the air bladder, hung on the pulley, and arranged such that the other end passes through the hole and exits from the inside of the air bladder to the outside.

According to the flying object of the present invention, when the cable hanging from the inside of the air sac through the bottom hole to the outside of the air sac is pulled downward, the air sac is crushed in the vertical direction, and the gas inside the air sac is released from the bottom of the air sac. The air is forced out of the air sac through the hole. Therefore, by adjusting the speed at which the rope is pulled, the buoyant force generated in the air sac can be reduced at a desired speed, and as a result, the altitude of the flying object can be quickly lowered.

FIG. 1 is a diagram showing the overall appearance of a flying object according to an embodiment. FIG. 3 is a diagram for explaining a mechanism of a forced exhaust mechanism included in a flying object according to an embodiment. FIG. 3 is a diagram showing how light gas in an air bladder is forcibly exhausted according to an embodiment. The figure which showed the external appearance of the top member based on one embodiment. FIG. 3 is a diagram for explaining the structure of the upper surface side of the top member according to one embodiment. The figure which showed the external appearance of the bottom member based on one embodiment. The figure which illustrated the connection mechanism with which the flying object based on the example of a modification is equipped. FIG. 7 is a diagram showing the overall appearance of a flying object according to a modified example. FIG. 7 is a diagram illustrating how an air sac of a flying object is inflated according to a modified example. The figure which showed the external appearance of the bottom member based on a modified example.

[Embodiment]
A flying object 1 according to an embodiment of the present invention will be described below. The flying object 1 is a gas balloon. FIG. 1 is a diagram showing the overall appearance of the flying object 1. As shown in FIG. In addition, in FIG. 1, illustration of a pulley 17, a cable body 18, and a winch 19, which will be described later, is omitted.

The flying object 1 includes an air bag 11 that has a hole H1 (an example of the bottom hole) at the bottom and is filled with a gas lighter than the outside air (hereinafter referred to as "light gas"), and an air bag 11 that is attached to the top of the air bag 11. the top member 12, a load 13 that is an object (or a group of objects) pulled up by the buoyancy generated in the air bladder 11, a plurality of load tapes 14 that are cables spanning the air bladder 11 and the road 13, and a hole. A bottom member 15 having one or more holes attached to the bottom of the air sac 11 so as to close a part of the hole H1, and a cylindrical member attached to the air sac 11 so as to extend downward from the edge of the hole H1. A skirt 16 is provided.

In this application, the top of the air bag 11 includes the top of the air bag 11 in a state in which the interior is filled with lightweight gas to create buoyancy and lift the load 13 via the load tape 14, and refers to the top of the air bag 11 in that state. It means the area located above the height direction position (the position of the most horizontally protruding part) where the area of the cross section when cut in the horizontal direction is the largest. Furthermore, in this application, the bottom of the air bladder 11 includes the lowest part of the air bladder 11 in a state in which the inside is filled with lightweight gas to generate buoyancy and lifts the load 13 via the load tape 14, and refers to the bottom of the air bladder 11 in that state. It means the area located below the height direction position (the position of the most horizontally protruding part) where the area of the cross section when cut in the horizontal direction is the largest.

The light gas filled in the air bladder 11 is, for example, helium gas, but is not limited thereto.

The top member 12 and the bottom member 15 are made of a material such as hard plastic or aluminum, and are stronger than the air bladder 11. Details of these members will be described later.

The skirt 16 is, for example, a flexible sheet formed in a cylindrical shape, and an upper opening communicates with the hole H1 of the air bladder 11. Hereinafter, as shown in FIG. 1, the opening on the lower side of the skirt 16 will be referred to as an opening O1. The skirt 16 serves to prevent the lightweight gas filled in the air bladder 11 from unintentionally leaking out of the air bladder 11 from the hole H1. Since the light gas inside the air sac 11 is lighter than the air outside the air sac 11, most of it does not leak downward from the hole H1 located at the bottom of the air sac 11. When a crushing force is applied to the air sac 11 from the outside, a portion of the lightweight gas inside the air sac 11 leaks out of the air sac 11. The skirt 16 retains the light gas that has thus escaped from the air sac 11. Note that the material of the skirt 16 may be the same as the material of the air bladder 11, or may be different.

The flying object 1 has a mechanism (hereinafter referred to as It is equipped with a "forced exhaust mechanism").

FIG. 2 is a diagram for explaining the mechanism of the forced exhaust mechanism included in the flying object 1. The flying object 1 includes a pulley 17, a cable 18, and a winch 19 in addition to the components described above with reference to FIG.

The pulley 17 is attached to the inner surface of the air sac 11 at the top of the air sac 11 . In this embodiment, the flying object 1 is provided with four pulleys 17, but the number may be one or more. In addition, in FIG. 2, only two pulleys 17 are shown for convenience.

Further, in this embodiment, the pulley 17 is attached to the air bladder 11 via the top member 12.

As shown in FIG. 2, the cable body 18 has one end attached to the bottom of the air sac 11 and hung on the pulley 17, and the other end passes through the hole H1 and exits from the inside of the air sac 11 to the outside. It is arranged like this. Since one rope body 18 is hung on one pulley 17, in this case, the number of cord bodies 18 is four, which is the same as the number of pulleys 17.

In this embodiment, one end of the cable body 18 is attached to the air bladder 11 via the bottom member 15.

The winch 19 is a device that winds up the cable 18. The winch 19 may wind the four cables 18 together as a bundle, or may wind them individually.

FIG. 3 is a diagram showing how the winch 19 winds up the cable body 18, thereby forcibly exhausting the light gas in the air bag 11. FIG. 3A shows a state in which the air bladder 11 is filled with the maximum amount of lightweight gas.

FIG. 3(B) shows a state in which the winch 19 has wound up the cable 18 in the flying object 1. When the winch 19 winds up the cable body 18, the bottom of the air sac 11 is drawn to the top of the air sac 11, and the air sac 11 is collapsed in the longitudinal direction. Accordingly, the light gas within the air bladder 11 is pushed out of the air bladder 11 through the hole H1, further moves downward within the skirt 16, and is discharged to the outside of the skirt 16 through the opening O1.

When the amount of light gas in the air sac 11 decreases and the buoyancy generated in the air sac 11 becomes smaller than the weight of the entire flying object 1, the flying object 1 begins to descend. While the flying object 1 is descending, the air sac 11 receives air force from the bottom upward as shown by the arrow in FIG. 3(B). Therefore, when the light gas in the air bag 11 is sufficiently exhausted, the air bag 11 pushes up the load tape 14 from below, and the load tape 14 becomes umbrella-shaped as a whole. As a result, the collapsed air sac 11 plays the role of a parachute umbrella, and the impact when the flying object 1 lands or lands on water is alleviated.

In this embodiment, the top member 12 is attached to the air sac 11 with the air sac 11 sandwiched therebetween from the inside and outside. FIG. 4 is a diagram showing the appearance of the top member 12. The top member 12 has an outer member 121 shown in FIG. 4(A) and an inner member 122 shown in FIG. 4(B).

The external member 121 is a member disposed outside the air bladder 11. FIG. 4(A) is a diagram of the external member 121 viewed from the side (lower side) in contact with the air bladder 11. Hereinafter, the surface of the external member 121 shown in FIG. 4(A) will be referred to as a lower surface, and the surface opposite to the lower surface will be referred to as an upper surface.

The external member 121 is a plate-like member having a circular shape in plan view. The outer member 121 may be gently curved to follow the shape of the air bladder 11.

Four pulleys 17 are arranged on the lower surface of the external member 121. Each pulley 17 includes a rotating member 171 that rotates around a horizontal axis, and a pair of bases 172 that are arranged to sandwich the rotating member 171 from the sides and rotatably hold the rotating member 171. has. Note that the outer member 121 and the base portion 172 may be integrally molded.

A plurality of screw holes S1 are opened slightly inside the outer edge of the external member 121.

The internal member 122 is a member disposed inside the air bladder 11. FIG. 4(B) is a view of the internal member 122 viewed from the side (lower side) not in contact with the air bladder 11. Hereinafter, the surface of the internal member 122 shown in FIG. 4(B) will be referred to as the lower surface, and the surface opposite to the lower surface will be referred to as the upper surface.

The internal member 122 is a plate-like member having a donut shape when viewed from above. The internal member 122 may be gently curved to follow the shape of the air bladder 11.

The internal member 122 has a plurality of screw holes S2. The screw hole S1 of the outer member 121 and the screw hole S2 of the inner member 122 communicate with each other when the outer member 121 and the inner member 122 are arranged in a stacked manner.

FIG. 4C shows a state in which the outer member 121 and the inner member 122 are stacked. The top member 12 is attached to the air sac 11 by tightening the communicating screw holes S1 and S2 with screws, with the outer member 121 and the inner member 122 sandwiching the top portion of the air sac 11. It will be done.

In this embodiment, the top member 12 also serves to connect the plurality of load tapes 14 to each other near the top of the air bladder 11. FIG. 5 is a diagram for explaining the structure of the upper surface side of the top member 12. As shown in FIG. 5(A) is a plan view of the external member 121, and FIG. 5(B) is a cross-sectional view of the external member 121 viewed in the direction of arrow A shown in FIG. 5(A).

The external member 121 has a main body 1211 that is a disc-shaped member curved along the air bladder 11, and an annular protrusion 1212 and a protrusion 1213 that protrude upward from the main body 1211. The diameter of protrusion 1213 is smaller than the diameter of protrusion 1212. The outer protrusion 1212 is provided with the same number of grooves G1 as the number of load tapes 14 so that the load tapes 14 pass therethrough.

The external member 121 further includes an annular member 1214 that is an annular member fitted between the protrusion 1212 and the protrusion 1213. As shown in FIG. 5C, by fitting the annular member 1214 with each of the load tapes 14 tied between the protrusions 1212 and 1213, the plurality of load tapes 14 are connected to the annular member 1214. are connected to each other via.

In this embodiment, the bottom member 15 is also attached to the air bladder 11 in a state where the air bladder 11 is sandwiched between the inside and the outside. FIG. 6 is a diagram showing the appearance of the bottom member 15. The bottom member 15 has an inner member 151 shown in FIG. 6(A) and an outer member 152 shown in FIG. 6(B).

The internal member 151 is a member disposed inside the air bladder 11. FIG. 6(A) is a view of the internal member 151 viewed from the side (upper side) not in contact with the air bladder 11. Hereinafter, the surface of the internal member 151 shown in FIG. 6(A) will be referred to as an upper surface, and the surface opposite to the upper surface will be referred to as a lower surface.

The internal member 151 is a plate-like member having a shape in plan view in which two large and small circular bands are connected by a plurality of bands extending in the radial direction. That is, the internal member 151 has one circular hole H2 in the center and a plurality of fan-shaped holes H3 outside the hole H2. The internal member 151 may be gently curved to follow the shape of the air bladder 11.

A plurality of screw holes S3 are opened slightly inside the outer edge of the internal member 151.

FIG. 6(C) is a cross-sectional view of the internal member 151 viewed in the direction of arrow B shown in FIG. 6(A).

The internal member 151 has a main body 1511 that is a plate-like member having a hole H2 and a hole H3 curved along the air bladder 11, and four protrusions 1512 that project upward from the main body 1511. The protrusion 1512 has a hole opened in the horizontal direction. One end of the cable body 18 is attached to the protrusion 1512 by tying or the like.

The external member 152 is a member disposed outside the air bladder 11. FIG. 6(B) is a view of the external member 152 viewed from the side (upper side) in contact with the air bladder 11. Hereinafter, the surface of the external member 152 shown in FIG. 6(B) will be referred to as an upper surface, and the surface opposite to the upper surface will be referred to as a lower surface.

The external member 152 is a plate-like member having a donut shape when viewed from above. The outer member 152 may be gently curved to follow the shape of the air bladder 11.

A plurality of screw holes S4 are opened in the external member 152. The screw hole S3 of the inner member 151 and the screw hole S4 of the outer member 152 communicate with each other when the inner member 151 and the outer member 152 are arranged in a stacked manner.

FIG. 6(D) is a bottom view of the state in which the inner member 151 and the outer member 152 are stacked. In the bottom member 15, an inner member 151 and an outer member 152 sandwich a portion near the bottom of the air bladder 11, that is, a portion near the edge of the hole H1 and a portion near the edge of the upper opening of the skirt 16. In this state, the communicating screw holes S3 and S4 are each tightened with screws, thereby attaching to the air bag 11 and connecting the skirt 16 to the air bag 11.

The bottom member 15 attached to the air bladder 11 as described above partially closes the hole H1 of the air bladder 11, but since it has the holes H2 and H3, it does not close the entire hole H1. . When the air sac 11 is collapsed, the light gas within the air sac 11 passes through the holes H2 or H3 and heads toward the opening O1 of the skirt 16.

Each of the cable bodies 18 is attached to the protrusion 1512 of the bottom member 15 at one end and hung on the pulley 17 disposed on the lower surface side of the top member 12 with the other end, for example. , after passing through the hole H2 of the bottom member 15, passes through the skirt 16, reaches the winch 19, and is attached to the winch 19.

The above is an explanation of the configuration of the flying object 1. In the flying object 1 having the above-described configuration, by pulling down the rope body 18 hanging down to the road 13 side during flight, the light gas in the air bag 11 can be forcibly exhausted. As a result, the altitude of the flying object 1 can be lowered more quickly than the flying object 1 according to the prior art in which light gas is naturally exhausted from the air bladder 11.

[Modified example]
The flying object 1 described above may be modified in various ways within the scope of the technical idea of the present invention. Examples of modifications are shown below. Note that two or more of the following modifications may be combined as appropriate.

(1) In the embodiment described above, the cable body 18 is pulled downward by being wound around the winch 19. The method of pulling the cable body 18 downward is not limited to the method using the winch 19. For example, a person in the load 13 may pull the cable 18 downward.

(2) Among the ends of the cable body 18, the end on the side that is not attached to the protrusion 1512 of the bottom member 15 is pulled downward, that is, in a direction from the inside to the outside of the air sac 11, so that the air sac 11 The flying object 1 may be provided with a connection mechanism that connects the top member 12 and the bottom member 15 in a state in which the gas (light gas) inside is discharged to the outside of the air bag 11 from the hole H1 of the air bag 11.

FIG. 7 is a diagram illustrating a coupling mechanism 20 included in a flying object 1 according to this modification. 7(A) shows the state before the top member 12 and the bottom member 15 are connected by the connecting mechanism 20, and FIG. 7(B) shows the state after the top member 12 and the bottom member 15 are connected by the connecting mechanism 20. Indicates the condition.

The connecting mechanism 20 includes a connecting member 201 attached to the lower surface of the top member 12 and a connecting member 202 attached to the upper surface of the bottom member 15.

The connecting member 201 and the connecting member 202 are members that connect when they come close to each other or come into contact with each other. The connecting member 201 and the connecting member 202 may be, for example, two magnets with different polarities, a male surface and a female surface of a hook-and-loop fastener, a latch and a latch receiver that engage with each other, or the like.

According to this modification, after the light gas is exhausted from the air sac 11, air flows into the air sac 11 from the hole H1 and the air sac 11 is inflated again even if the force to pull the cable body 18 is not maintained. There is no. As a result, the shape of the air bag 11 (the shape of a parachute umbrella) is reliably maintained.

(3) In order to make it possible to re-inflate the collapsed air sac 11, one end is attached to the bottom of the air sac 11 so that it hangs outside the air sac 11 without being hung on the pulley 17. The flying object 1 may include a different cable (second cable) from the arranged cable 18 (first cable).

FIG. 8 is a diagram showing the overall appearance of the flying object 1 according to this modification. Note that in FIG. 8, illustration of the skirt 16 is omitted. The flying object 1 shown in FIG. 8 includes a plurality of cable bodies 21, one end of which is attached to the lower surface of the bottom member 15, and a winch 22 that winds up the cable bodies 21. Each of the cable bodies 21 hangs down toward the road 13 through, for example, a skirt 16 (not shown in FIG. 8), and has a lower end attached to a winch 22.

The flying object 1 re-inflates the collapsed air sac 11 by winding up the cable 21 with the winch 22 while unwinding the cable 18 with the winch 19. FIG. 9 is a diagram showing how the air bladder 11 is inflated. Note that in FIG. 9, illustration of the skirt 16 is omitted. FIG. 9(A) shows the flying object 1 in which the air sac 11 has been crushed by about half, and FIG. 9(B) shows the air sac 11 once again by winding the cable body 21 from the state shown in FIG. 9(A). shows the flying object 1 in an inflated state.

When inflating the air sac 11, for example, by filling the air sac 11 with light gas from a gas cylinder filled with light gas contained in the load 13, the flying object 1 that has descended can be raised again. .

Note that the method for pulling the cable body 21 downward is not limited to the method using the winch 22. For example, a person in the load 13 may pull the cable 21 downward.

(4) The flying object 1 may be provided with an opening/closing mechanism that opens and closes a hole provided at the bottom of the air bladder 11.

FIG. 10 is a diagram showing the appearance of the bottom member 15 included in the flying object 1 according to this modification. The bottom member 15 according to this modification has a lid member 153 arranged on the outside of the inner member 151 in the same layer as the outer member 152. FIG. 10(A) is a diagram of the internal member 151 viewed from below, and FIG. 10(B) is a diagram of the lid member 153 viewed from below. 10(C) is a cross-sectional view of the internal member 151 as seen in the direction of arrow C shown in FIG. 10(A), and FIG. 10(D) is a cross-sectional view of the lid member 153 as seen in FIG. 10(B). FIG. Moreover, FIG. 10(E) is a cross-sectional view of the inner member 151, outer member 152, and lid member 153 in a stacked state. As shown in FIG. 10(E), the outer member 152 and the lid member 153 are arranged side by side in the same layer outside the inner member 151. Moreover, FIG. 10(F) is a view from below of the inner member 151, outer member 152, and lid member 153 in a stacked state.

The internal member 151 has a cylindrical portion 1513 extending downward from the edge of the hole H2, and a cylindrical elastic member 1514 disposed on the inner surface of the cylindrical portion 1513.

The lid member 153 is a plate-like member that is shaped like a four-blade propeller when viewed from above. The four-blade-shaped portion of the lid member 153 has a shape and size that closes the hole H3 of the internal member 151. The lid member 153 has a plate-shaped main body 1531 with a hole H4 in the center, and a rack 1532 provided in an arc shape near the outer edge of one wing portion of the main body 1531.

The diameter of the hole H4 of the lid member 153 is larger than the outer diameter of the cylindrical portion 1513 of the inner member 151 by the amount of play, and as shown in FIG. 10(E), the inner member 151 and the lid member 153 are stacked. In this state, the cylindrical portion 1513 of the internal member 151 fits into the hole H4 of the lid member 153. In this state, the internal member 151 rotatably holds the lid member 153.

As shown in FIG. 10(E), the flying object 1 according to this modification has a pinion that is attached around the outer edge of the lower surface of the outer member 152 and that engages with a rack 1532 of the lid member 153 that is stacked with the inner member 151. A motor 23 having a number 231 is provided. As the shaft of the motor 23 rotates, the lid member 153 rotates relative to the outer member 152 and the inner member 151, opening and closing the hole H3 of the inner member 151.

In this case, the internal member 151, the lid member 153, and the motor 23 constitute an opening/closing mechanism.

The elastic member 1514 serves to close the gap between the cable body 18 passing through the hole H2 and the internal member 151. That is, the cable body 18 is movable inside the elastic member 1514, but the elastic member 1514 deforms according to the shape of the cable body 18, and closes the portion of the hole H2 that is not covered by the cable body 18.

According to this modification, the light gas inside the air bag 11 is prevented from leaking out of the air bag 11 when the lid member 153 closes the hole H2.

For example, when the air sac 11 is collapsed by winding the cable 18, some of the light gas inside the air sac 11 is exhausted, and the flying object 1 starts descending, the air sac 11 is filled with the surrounding air from below to above. A force is added to push it up. Therefore, even if the flying object 1 is to be lowered slowly, if the holes H2 and H3 are not blocked, the air sac 11 will be crushed by the force of the surrounding air, and the air sac 11 will remain inside the air sac 11. Light gas may be exhausted outside the air bladder 11, causing the flying object 1 to descend at a faster speed than intended. According to the flying object 1 according to the modification described above, such inconvenience does not occur.

Note that the configuration of the opening/closing mechanism included in the flying object 1 according to this modification is not limited to that described above. For example, instead of the motor 23, the opening/closing mechanism may rotate the lid member 153 using another type of component such as an actuator. Alternatively, the opening/closing mechanism may not include the motor 23 or the like, and a person inside the load 13 may manually rotate the lid member 153. Further, the opening/closing mechanism may include an opening/closing valve, and the hole at the bottom of the air bladder 11 may be opened/closed by opening/closing the opening/closing valve.

(5) The top member 12 may have a hole (an example of a top hole) that allows communication between the inside and outside of the air bladder 11, and the flying object 1 may include an opening/closing mechanism that opens and closes the hole.

As the opening/closing mechanism for opening/closing the hole of the top member 12, for example, an opening/closing mechanism having the same configuration as the opening/closing mechanism that the bottom member 15 has in the above-mentioned modification (4) may be adopted. However, the structure of the opening/closing mechanism that opens and closes the hole in the top member 12 is not limited to this, and includes, for example, a structure in which the lid is opened and closed by an actuator, a structure in which a person in the road 13 manually opens and closes the lid via a control cable, etc. Any structure may be adopted, such as opening and closing an on-off valve arranged so as to close the opening/closing valve.

If the top member 12 is provided with an opening/closing mechanism, by opening the holes in the top member 12 when exhausting the light gas in the air sac 11, the speed of exhausting the light gas can be increased, and the light gas inside the air sac 11 can be exhausted. Remaining light gas can be reduced.

In addition, when the flying object 1 falls, the hole at the top of the air bag 11 is opened by the opening/closing mechanism of the top member 12, so that the collapsed air bag 11 (see FIG. 3(B)), which serves as an umbrella for the parachute, is opened. There is a hole in the center that allows air to escape from the bottom to the top. As a result, the attitude of the falling flying object 1 is stabilized compared to the case where no such hole is formed.

(6) In the embodiment described above, the top member 12 is attached to the air bladder 11 by sandwiching the air bladder 11 therebetween. The configuration in which the top member 12 is attached to the air bladder 11 is not limited to this. For example, the top member 12 may not have the inner member 122 and be composed only of the outer member 121, and the top member 12 may be attached to the air bladder 11 by adhesive or the like.

(7) In the embodiment described above, the bottom member 15 is attached to the air bladder 11 by sandwiching the air bladder 11 therebetween. The configuration in which the bottom member 15 is attached to the air bladder 11 is not limited to this. For example, the bottom member 15 may be configured only with the inner member 151 without the outer member 152, and the bottom member 15 may be attached to the air bladder 11 by adhesive or the like.

(8) In the embodiment described above, the pulley 17 is attached to the air bladder 11 via the top member 12. Alternatively, the flying object 1 may not include the top member 12 and the pulley 17 may be attached directly to the air bladder 11.

(9) In the embodiment described above, the cable body 18 is attached to the air bladder 11 via the bottom member 15. Alternatively, the flying object 1 may not include the bottom member 15 and the cable body 18 may be directly attached to the air bladder 11.

(10) In the embodiment described above, the top member 12 and the bottom member 15 are made of a material different from that of the air bladder 11 (for example, hard plastic, light metal, etc.), but at least part of the top member 12 Alternatively, at least a portion of the bottom member 15 may be made of the same material as the air bladder 11. In that case, at least a portion of the top member 12 or at least a portion of the bottom member 15 may be integrally molded with the air bladder 11.

(11) In the embodiment described above, the flying object 1 is provided with the skirt 16, but the flying object 1 may not be provided with the skirt 16. Even if some of the light gas inside the air sac 11 leaks out of the air sac 11 from the hole H1 and air enters the lower side of the air sac 11, most of the light gas located on the upper side of the air sac 11 remains inside the air sac 11. Therefore, there may be no problem with the flight of the flying object 1. In such a case, skirt 16 is not necessary.

(12) In the embodiments described above, the configuration, shape, size, arrangement, etc. of the top member 12, bottom member 15, etc. shown in the drawings are merely examples, and may be modified in various ways. For example, the inner and outer positions of the outer member 121 and the inner member 122 constituting the top member 12 may be reversed. Similarly, the inner and outer positions of the inner member 151 and the outer member 152 constituting the bottom member 15 may be reversed. Further, in the embodiment described above, the cable body 18 extends upward from the bottom member 15, is hung from the outside to the inside of the pulley 17, and then extends downward and heads toward the winch 19. 18 may be configured to extend upward from the bottom member 15 and hang from the inside to the outside of the pulley 17, and then extend downward toward the winch 19. Further, the number of pulleys 17, cable bodies 18, and holes H3 is not limited to four, but may be any number greater than or equal to one. Further, the top member 12 may have hooks instead of the annular member 1214, and the load tape 14 may be attached to these hooks. Further, the load tape 14 may be attached to the top member 12 by adhesive or the like.

(13) In the embodiment described above, the flying object 1 is a gas balloon, but as long as the flying object is equipped with an air bladder 11, it may be another type of balloon such as a hot air balloon, an airship, etc. It may be a flying object other than a balloon.

(14) In the embodiment described above, as the name indicates, the road tape 14 is assumed to be a band-shaped member, but the shape of the road tape 14 is not limited to the band shape, and may be, for example, string-shaped. That is, regardless of its shape, the load tape 14 is attached to the air bag 11 in a state extending along the air bag 11 from the top of the air bag 11 in the meridian direction. It is sufficient that the rope can bear a load of .

DESCRIPTION OF SYMBOLS 1... Flying body, 11... Air bag, 12... Top member, 13... Road, 14... Load tape, 15... Bottom member, 16... Skirt, 17... Pulley, 18... Rope body, 19... Winch, 20... Connection mechanism, 21... Cable body, 22... Winch, 23... Motor, 121... External material, 122... Internal material, 151... Internal material, 152... External material, 153... Lid member, 171... Rotating member, 172... Base, 201... Connection Member, 202...Connection member, 231...Pinion, 1211...Main body, 1212...Protrusion, 1213...Protrusion, 1214...Annular member, 1511...Main body, 1512...Protrusion, 1513...Cylindrical part, 1514...Elastic member, 1531...Main body, 1532...Rack.

The present invention provides an air bag that has a hole at the bottom and is filled with a gas lighter than the outside air, a load that is an object that is pulled up by the buoyancy generated in the air bag, and an air bag that is bridged between the air bag and the load. a plurality of first cable bodies, a pulley attached to the inner surface of the air sac at the top of the air sac, one end attached to the bottom of the air sac and hung on the pulley, and the other end attached to the inner surface of the air sac; is arranged so that it passes through the hole and exits from the inside of the air sac to the outside, and the bottom part of the air sac is pulled downward during flight, so that the bottom part of the air sac is pulled downward. A flying object is proposed that includes a second cable that is a cable that is drawn to the top of the air bladder and discharges the gas in the air bladder from the hole.

The flying object 1 includes an air bag 11 that has a hole H1 (an example of the bottom hole) at the bottom and is filled with a gas lighter than the outside air (hereinafter referred to as "light gas"), and an air bag 11 that is attached to the top of the air bag 11. a load 13 that is an object (or a group of objects) pulled up by the buoyancy generated in the air bladder 11; and a plurality of load tapes 14 (first a bottom member 15 having one or more holes attached to the bottom of the air sac 11 so as to partially block the hole H1, and a bottom member 15 attached to the air sac 11 so as to extend downward from the edge of the hole H1. The skirt 16 is a hollow cylindrical member.

As shown in FIG. 2, the cable body 18 (second cable body) has one end attached to the bottom of the air sac 11 and hung on the pulley 17, and the other end passes through the hole H1 and connects to the air sac. It is arranged so that it comes out from the inside of 11. Since one rope body 18 is hung on one pulley 17, in this case, the number of cord bodies 18 is four, which is the same as the number of pulleys 17.

(3) In order to make it possible to re-inflate the collapsed air sac 11, one end is attached to the bottom of the air sac 11 so that it hangs outside the air sac 11 without being hung on the pulley 17. The flying object 1 may include a different cable ( third cable) from the arranged cable 18 ( second cable).

FIG. 8 is a diagram showing the overall appearance of the flying object 1 according to this modification. Note that in FIG. 8, illustration of the skirt 16 is omitted. The flying object 1 shown in FIG. 8 includes a plurality of cable bodies 21 (third cable bodies) having one end attached to the lower surface of the bottom member 15, and a winch 22 that winds up the cable bodies 21. Each of the cable bodies 21 hangs down toward the road 13 through, for example, a skirt 16 (not shown in FIG. 8), and has a lower end attached to a winch 22.

Claims (11)

An air sac that has a hole at the bottom and is filled with a gas that is lighter than the outside air;
a pulley attached to the inner surface of the air sac at the top of the air sac;
and a cable body disposed such that one end thereof is attached to the bottom of the air sac, is hung on the pulley, and the other end is disposed to exit from the inside of the air sac through the hole. comprising a top member attached to the top of the air sac;
The flying object according to claim 1, wherein the pulley is attached to the air bladder via the top member. The top member has an outer member disposed outside the air sac and an inner member disposed inside the air sac, and the top member is inserted into the air sac with the outer member and the inner member sandwiching the air sac. The flying object according to claim 2, wherein the flying object is attached. One end of the rope is attached to the top member, the rope is attached to the air sac while being arranged along the air sac so as to extend in the meridian direction from the top of the air sac, and a load is applied during flight. The flying object according to claim 2, comprising: When the hole is a bottom hole, the top member has a top hole that is a hole that allows communication between the inside and outside of the air bladder,
The flying object according to claim 2, further comprising an opening and closing mechanism that opens and closes the top hole. comprising a bottom member that is a member attached to the bottom of the air bladder,
The flying object according to claim 1, wherein one end of the cable body is attached to the air bladder via the bottom member. The bottom member includes an external member disposed outside the air sac and an internal member disposed inside the air sac, and the bottom member is placed in the air sac with the air sac sandwiched between the external member and the internal member. The flying object according to claim 6, wherein the flying object is attached. a top member attached to the top of the air bladder;
and a bottom member attached to the bottom of the air bladder,
the pulley is attached to the air bladder via the top member;
one end of the cable body is attached to the air bladder via the bottom member,
a connection mechanism that connects the top member and the bottom member in a state in which the other end of the cable body is pulled in a direction from the inside to the outside of the air sac, so that the gas in the air sac is discharged from the hole; The flying object according to claim 1, comprising: When the cord is a first cord,
The flying object according to claim 1, further comprising a second rope body, one end of which is attached to the bottom of the air bladder and is arranged to hang outside the air bladder without being hung on the pulley. The flying object according to claim 1, further comprising a cylindrical member attached to the air bladder so as to extend downward from an edge of the hole. The flying object according to claim 1, further comprising an opening and closing mechanism that opens and closes the hole.