Flying Object

Abstract

The present invention provides a flying object. In a flying object having an airbag, the risk of damage to the airbag skin is reduced by fastening components arranged on the inner and outer sides of the airbag skin. The component (14) has an annular middle component (141), and the portion around the opening of the airbag in the skin (111) is folded back after passing through the inner opening of the middle component from the back side to the front side. A front component (142) having an annular front sealing component (143) mounted on the back side is arranged in a manner that contacts the front side of the middle component covered by the folded back skin. In addition, a back component (144) having an annular back sealing component (145) mounted on the front side is arranged in a manner that contacts the back side of the middle component covered by the folded back skin. The front side component and the back side component are fastened in a direction toward each other by means of bolts (1461) and nuts (1462), thereby mounting the assembly on the airbag.

Description

Technical Field

[0001] The present invention relates to a flying object having an air bag such as a balloon. Background Art

[0002] Aircraft such as balloons and airships have a bag called an airbag, and fly by utilizing the buoyancy generated by the airbag containing a gas lighter than air, such as heated air or helium.

[0003] In an aircraft equipped with an airbag such as the one described above, it is sometimes desirable to attach certain components to the airbag. For example, if an opening and closing mechanism that opens and closes the exhaust port provided in the airbag could be attached to the airbag, a passenger could operate or instruct the opening and closing mechanism to release a desired amount of gas from the airbag at a desired time, thereby reducing the aircraft's ascent speed or causing it to descend.

[0004] Because the outer shell of an airbag is a thin, lightweight sheet-like component, it is easily damaged when a large external force is applied locally. As a means of reducing the risk of such damage, Patent Document 1, for example, proposes a structure in which an inner member (a flat plate) disposed inside the outer shell and an outer member (a flat plate) disposed outside the outer shell are fastened together with fastening members such as bolts and nuts so as to sandwich the outer shell, thereby attaching the inner and outer member assembly to the outer shell.

[0005] The assembly described in Patent Document 1 is attached to the ball skin in surface contact with the skin. Therefore, the force applied to the skin due to the weight of the assembly, etc., is not concentrated locally on the skin but is distributed. As a result, the invention described in Patent Document 1 reduces the risk of skin damage compared to a case where a force is applied locally to the skin by attaching an object of the same weight to the skin.

[0006] Patent Document 1: Japanese Patent Application Laid-Open No. 2022-079418

[0007] In the assembly described in Patent Document 1, the ball cover and the assembly are secured together using frictional forces generated on the inner and outer surfaces of the cover by the fastening of the inner and outer components. Consequently, the downward pulling force on the cover, generated by a load such as a load suspended below the airbag, can exceed this frictional force, causing the cover to shift and sometimes fall out of the space between the inner and outer components. Furthermore, in a configuration where the shaft of the bolt fastening the inner and outer components extends through the cover, if the cover shifts while held between the inner and outer components, the cover can break away from the portion hooked on the shaft of the bolt. Summary of the Invention

[0008] The present invention has been completed in view of the above situation, and its object is to provide a means for reducing the risk of the balloon skin falling off between parts arranged on the inner and outer sides of the balloon skin constituting the balloon skin in a structure in which an object is mounted on the balloon skin by fastening these parts.

[0009] The present invention provides a flying body, which comprises: an intermediate component, which has an annular shape when viewed from above, and a cross-section of the intermediate component obtained by cutting it with a plane containing a straight line in the direction of viewing from above is in the shape of a flat plate; a spherical skin, which is arranged in the following manner: it extends from the outside toward the inside when viewing the intermediate component from above, passes through the inner opening of the intermediate component and folds back, and then extends from the inside toward the outside when viewing the intermediate component from above; a front side component, which is arranged on the front side of the intermediate component when the viewpoint side when viewing the intermediate component from above is set as the front side and the side opposite to the viewpoint side is set as the back side; a back side component, which is arranged on the back side of the intermediate component; and a fastening mechanism, which fastens the front side component and the back side component in a direction in which they approach each other.

[0010] According to the present invention, even if a downward pulling force is applied to the ball cover, the cover is hooked on the inner edge of the intermediate member and is therefore less likely to shift between the front and back members. As a result, the cover is less likely to fall out between the two members than, for example, the structure described in Patent Document 1. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 This is a diagram showing a flying object according to one embodiment.

[0012] Figure 2 This is a diagram illustrating the shapes of a plurality of balloon skins constituting an airbag according to one embodiment.

[0013] Figure 3 It is a diagram showing the shape of an airbag according to one embodiment.

[0014] Figure 4 It is a diagram showing an intermediate component according to one embodiment.

[0015] Figure 5 This is a diagram showing a front side member according to one embodiment.

[0016] Figure 6 This is a diagram showing a front side member according to one embodiment.

[0017] Figure 7 This is a diagram showing a back member according to one embodiment.

[0018] Figure 8 It is a diagram showing a fastening member according to one embodiment.

[0019] Figure 9 It is a diagram showing a front-side screw hole sealing member and a back-side screw hole sealing member according to one embodiment.

[0020] Figure 10 These are diagrams showing states before and after bolts are attached to the back side member according to one embodiment.

[0021] Figure 11 This is a diagram showing a state in which a folded portion of an airbag according to one embodiment is folded back from the inside to the outside of an intermediate member, and the back and front sides of the intermediate member are covered by the folded portion.

[0022] Figure 12 It is a diagram showing components before and after the airbag is mounted according to one embodiment.

[0023] Figure 13 This is a diagram showing a state in which a front side sealing member according to a modified example is arranged on the back side of the front side member.

[0024] Figure 14 This is a diagram showing a state in which a back-side sealing member according to a modified example is arranged on the front side of the back-side member.

[0025] Figure 15 is a cross-sectional view of a component of a modified example.

[0026] Figure 16 is a cross-sectional view of a component of a modified example.

[0027] Figure 17 is a cross-sectional view of a component of a modified example.

[0028] Figure 18 is a cross-sectional view of a component of a modified example.

[0029] Label Description

[0030] 1: flying body; 11: airbag; 12: sling; 13: container; 14: assembly; 15: operating rope; 16: loading belt; 17: module; 111: ball skin; 140: spacer; 141: intermediate part; 142: front side part; 143: front side sealing part; 144: back side part; 145: back side sealing part; 146: fastening part; 147: front side threaded hole sealing part; 148: back side threaded hole sealing part; 149: rigid ring; 1421: main body; 1422: cover; 1423: hinge; 1424: sealing part; 1425: hook; 1431: sealing part; 1432: sealing part; 1451: sealing part; 1452: sealing part; 1461: bolt; 1462: nut; 1463: inner cylindrical part; 1464: outer cylindrical part. DETAILED DESCRIPTION

[0031] Figure 1 This figure shows an aircraft 1 according to one embodiment of the present invention. Aircraft 1 includes an airbag 11, which is a bag containing a gas lighter than air, such as helium (hereinafter referred to as "light gas"); slings 12, which are a plurality of slings with their upper ends attached to airbag 11 and their lower ends hanging downward from airbag 11; and a container 13 attached to the lower ends of slings 12. Container 13 houses objects (including people) carried into the air by aircraft 1 and, when carrying people, is also referred to as a cab.

[0032] The flying object 1 further includes an assembly 14. The assembly 14 is a group of assembled components, and is a structure to be attached to the airbag 11 in the assembled state.

[0033] In the following description, the assembly 14 is exemplified as a structure having an opening and closing mechanism installed to close a vent provided at the top of the airbag 11 and opening and closing the vent in response to an operation by an occupant in the container 13 .

[0034] Figure 2 : is a diagram illustrating the shapes of the plurality of balloon skins constituting the airbag 11. Figure 2 In the example, the airbag 11 is composed of eight sheets 111 each having a substantially boat-shaped shape. Figure 2 As shown, it is represented as ball skin 111 (1) and ball skin 111 (2).

[0035] For example, the edges of two adjacent sheet-like parts are joined by heat welding, such as the right edge of the ball skin 111 (1) (the area indicated by the solid line) and the left edge of the ball skin 111 (2) (the area indicated by the dotted line), the right edge of the ball skin 111 (2) and the left edge of the ball skin 111 (3), ..., the right edge of the ball skin 111 (8) and the left edge of the ball skin 111 (1), and the whole is formed into a spherical shape to make the airbag 11.

[0036] The balloons 111 are each formed in a shape like a fish's tail fin so that a portion located at the top of the airbag 11 can be folded back as described later.

[0037] Figure 3 is shown by Figure 2 FIG. 11 is a diagram of an air bag 11 made by joining the ball skin 111 of the embodiment of the present invention. Figure 3 As shown, the airbag 11 has an opening at the top and a substantially annular folded portion 112 surrounding the opening. The folded portion 112 is formed by joining portions of the balloon 111 that are shaped like a tail fin.

[0038] The assembly 14 includes an intermediate member 141 , a front member 142 , a front seal member 143 , a back member 144 , a back seal member 145 , a fastening member 146 , a front screw hole seal member 147 , and a back screw hole seal member 148 .

[0039] Figure 4 14 is a diagram showing the intermediate member 141 . Figure 4 (A) is a view looking down at the front side of the intermediate component 141. In the following description, the front side refers to the viewpoint side (Z-axis positive direction side) when looking down at the airbag 11 from the outside, and the back side refers to the side opposite to the viewpoint side (Z-axis negative direction side) when looking down at the airbag 11 from the outside.

[0040] In addition, the figure which looks at the middle component 141 from the back side and the figure which looks at the middle component 141 from the front side ( Figure 4 The same as (A).

[0041] Figure 4 (B) is observed along the direction of arrow A (positive direction of Y axis) Figure 4 (A) is a cross-sectional view when the intermediate member 141 is cut along the dotted line.

[0042] like Figure 4 As shown, the intermediate member 141 is annular in plan view, with an opening O1 (an example of an inner opening) provided inside. Furthermore, the intermediate member 141 has a flat cross-section when cut along a plane (e.g., a plane perpendicular to the Y-axis or the X-axis) that includes a straight line in the plan view direction (the Z-axis). The intermediate member 141 is made of a material that is harder than the airbag 11, such as a rigid plastic or a lightweight metal.

[0043] The intermediate member 141 is provided with a plurality of holes (in the Z-axis direction) for passing the shaft of a bolt 1461 (a part of the fastening member 146) described later. Figure 4 In the example, there are 8 holes H1.

[0044] The inner edge E1 and the outer edge E2 in a plan view of the intermediate member 141 are chamfered to prevent the cover 111 from being damaged when a force is applied to a portion of the cover 111 that contacts the inner edge E1 or the outer edge E2 .

[0045] Figure 5 and Figure 6 14 is a diagram showing the front side member 142 . Figure 5 (A) is a plan view of the front side of the front side member 142 . Figure 5 (B) is a plan view of the back side of the front side member 142. Figure 5 (C) is observed along the direction of arrow B (positive direction of Y axis) Figure 5 (A) is a cross-sectional view when the front member 142 is cut along the dotted line. Figure 6 This is a diagram of the front member 142 in a state where the cover 1422 of the front member 142 is opened, as viewed from the rear side in an oblique direction.

[0046] like Figure 5 and Figure 6 As shown, the front side component 142 is a component that is disc-shaped as a whole when viewed from above, and has a flat cross-section obtained by cutting it with a plane containing a straight line in the direction of view (for example, a plane perpendicular to the Y axis or a plane perpendicular to the X axis).

[0047] The front side part 142 includes: a main body 1421; a cover 1422, which is provided in a manner to close the opening O2 provided in the center portion when looking down at the main body 1421 from the back side; a hinge 1423, which connects the cover 1422 to the main body 1421 in a manner that can be opened and closed; and a sealing part 1424, which plays a role in airtightly closing the gap between the main body 1421 and the cover 1422 when the cover 1422 is pressed against the main body 1421 in a manner to close the opening O2.

[0048] Hinge 1423 includes a spring or other mechanism that presses lid 1422 against main body 1421, urging it toward closing opening O2. A hook 1425 is attached to lid 1422 and connected to the upper end of operating cable 15. When the lower end of operating cable 15 reaches inside container 13, a passenger inside container 13 can pull operating cable 15 to open lid 1422, allowing gas within airbag 11 to be discharged to the outside through opening O2. When the passenger releases their hand from operating cable 15, lid 1422 closes opening O2, stopping the discharge.

[0049] The outer edge E3 in a plan view of the front member 142 is chamfered so that the cover 111 is less likely to be damaged when a force is applied to a portion of the cover 111 that contacts the outer edge E3 .

[0050] The main body 1421 of the front member 142 is made of a material harder than the airbag 11 , such as hard plastic or light metal.

[0051] The front side member 142 is provided with a plurality of holes (in the Z-axis direction) for the shaft of the bolt 1461 to pass through in the direction (in the Z-axis direction) penetrating the front side and the back side of the front side member 142. Figure 5 and Figure 6 The holes H2 of the front member 142 are provided in the assembly 14 so as to communicate with the holes H1 of the middle member 141 .

[0052] A front sealing member 143 is attached to the back side of the front member 142, for example, using double-sided tape. The front sealing member 143 is disposed in the assembly 14 between the front member 142 and the intermediate member 141 (described later) covered by the folded-back cover 111. The front sealing member 143 is an annular member disposed so as to contact the annular intermediate member 141 over its entire circumference.

[0053] The front side sealing member 143 is an elastic member that is annular in shape when viewed from above and has a flat cross section when cut along a plane that includes a straight line in the direction of view (e.g., a plane perpendicular to the Y axis or a plane perpendicular to the X axis). The front side sealing member 143 is provided with a plurality of holes (in the direction of the Z axis) for the shaft of the bolt 1461 to pass through. Figure 5 and Figure 6 In the example, there are eight holes H3. The holes H3 of the front side sealing member 143 are provided in the assembly 14 so as to communicate with the holes H1 of the intermediate member 141 and the holes H2 of the front side member 142.

[0054] The front-side sealing member 143 of the aforementioned shape is arranged in the assembly 14 so as to contact the annular intermediate member 141 along its entire circumference, both on the outside (the side farther from the opening O1 in the XY plane) and the inside (the side closer to the opening O1 in the XY plane) of the hole H1 formed in the intermediate member 141, when viewed from above. As a result, the gas flow path through the gap between the intermediate member 141 and the front-side member 142 is sealed by the front-side sealing member 143, preventing gas from leaking out of the airbag 11 through this flow path.

[0055] Figure 7 14 is a diagram showing the back member 144 . Figure 7 (A) is a plan view of the front side of the back member 144 . Figure 7 (B) is a plan view of the back side of the back side member 144. Figure 7 (C) is observed along the direction of arrow C (positive direction of Y axis) Figure 7 (A) is a cross-sectional view when the dotted line cuts through the back member 144.

[0056] like Figure 7 As shown, the back member 144 is annular in plan view and has a flat cross-section when cut along a plane including a straight line in the plan view direction (e.g., a plane perpendicular to the Y-axis or a plane perpendicular to the X-axis). The back member 144 is made of a material that is harder than the airbag 11, such as hard plastic or light metal.

[0057] The back member 144 is provided with a plurality of holes (in the Z-axis direction) for the shaft of the bolt 1461 to pass through in the direction (in the Z-axis direction) penetrating the front side and the back side of the back member 144. Figure 7 In the example, there are eight holes H4. The holes H4 of the back component 144 are provided in the assembly 14 so as to communicate with the holes H1 of the intermediate component 141, the holes H2 of the front component 142, and the holes H3 of the front sealing component 143. The inner surfaces of the holes H4 have thread valleys corresponding to the threads cut into the shafts of the bolts 1461 described later.

[0058] The outer edge E4 in a plan view of the back member 144 is chamfered so that the cover 111 is less likely to be damaged when a force is applied to a portion of the cover 111 that contacts the outer edge E4 .

[0059] A back sealing member 145 is attached to the front side of the back member 144 using, for example, double-sided tape. The back sealing member 145 is disposed in the assembly 14 between the back member 144 and the intermediate member 141 (described later) covered by the folded-back cover 111. The back sealing member 145 is an annular member disposed so as to contact the annular intermediate member 141 over its entire circumference.

[0060] The back seal member 145 is an elastic member that is annular in shape when viewed from above and has a flat cross-section when cut along a plane that includes a straight line in the direction of view (e.g., a plane perpendicular to the Y axis or a plane perpendicular to the X axis). The back seal member 145 is provided with a plurality of holes (in the direction of the Z axis) for the shaft of the bolt 1461 to pass through. Figure 6 The holes H5 of the back-side sealing member 145 are provided in the assembly 14 so as to communicate with the holes H1 of the intermediate member 141, the holes H2 of the front-side member 142, the holes H3 of the front-side sealing member 143, and the holes H4 of the back-side member 144.

[0061] The back-side sealing member 145 of the aforementioned shape is arranged in the assembly 14 so as to contact the annular middle member 141 along its entire circumference, both on the outside (the side farther from the opening O1 in the XY plane) and the inside (the side closer to the opening O1 in the XY plane) of the hole H1 formed in the middle member 141, when viewed from above. As a result, the gas flow path passing through the gap between the middle member 141 and the back-side member 144 is sealed by the back-side sealing member 145, preventing gas from leaking out of the airbag 11 through this flow path.

[0062] Figure 8 146 is a diagram showing the fastening member 146. In this embodiment, the fastening member 146 is composed of eight sets of bolts 1461 and nuts 1462. Figure 8 (A) is a diagram of a set of bolts 1461 and nuts 1462 as viewed from the side (for example, a diagram viewed along the positive direction of the Y axis). Figure 8 (B) is a diagram showing the front side of the bolt 1461 as viewed from above. Figure 8 (C) is a view showing the front side of the nut 1462 as viewed from above. Figure 8 (D) is observed along the direction of arrow D (positive direction of Y axis) Figure 8 (C) is a cross-sectional view of the nut 1462 cut along the dotted line.

[0063] Threads are cut on the outer surface of the shaft of the bolt 1461. In addition, thread valleys corresponding to the threads of the bolt 1461 are cut on the inner surface of the nut 1462 (the surface in contact with the hole).

[0064] Figure 9 14 is a diagram showing a front-side threaded hole sealing component 147 and a back-side threaded hole sealing component 148. The front-side threaded hole sealing component 147 and the back-side threaded hole sealing component 148 are the same component, but in the assembly 14, the front-side threaded hole sealing component 147 is arranged on the front side of the front component 142, and the back-side threaded hole sealing component 148 is arranged on the back side of the back component 144.

[0065] Figure 9 (A) is a plan view of the front side of the front screw hole sealing member 147 or the back side screw hole sealing member 148 . Figure 9 (B) is observed along the direction of arrow E (positive direction of Y axis) Figure 9 FIG. 1 is a cross-sectional view of the front screw hole sealing member 147 or the back screw hole sealing member 148 taken along the dotted line in FIG. 1 .

[0066] The front threaded hole sealing component 147 and the back threaded hole sealing component 148 are elastic components that are annular in shape when viewed from above. They are elastic components that are annular in shape when viewed from above and have a flat cross-section obtained by cutting with a plane that includes a straight line in the direction of view (for example, a plane perpendicular to the Y axis or a plane perpendicular to the X axis). The inner openings of the front threaded hole sealing component 147 and the back threaded hole sealing component 148 serve as holes for the shaft of the bolt 1461 to pass through. In addition, the front threaded hole sealing component 147 and the back threaded hole sealing component 148 serve as follows: they seal the movement path of the gas that passes through the hole (described later) for the shaft of the bolt 1461 opened in the ball shell 111 to pass through, thereby preventing the gas from leaking out of the airbag 11 through this movement path.

[0067] In addition, the figure which looks at the back side of the front side screw hole sealing member 147 or the back side screw hole sealing member 148 and the figure which looks at the front side ( Figure 9 The same as (A).

[0068] Next, the process of assembling the assembly 14 will be described.

[0069] The operator first inserts the shaft of the bolt 1461, which is in a state of passing through the hole of the back-side threaded hole sealing component 148, from the back side toward the front side into the eight holes H4 (connected to the hole H5 of the back-side sealing component 145) of the back-side component 144 on which the back-side sealing component 145 is installed, and screws the bolt 1461 into the back-side component 144 in such a way that the thread valley provided on the inner surface of the hole H4 is engaged with the thread tooth provided on the outer surface of the shaft of the bolt 1461. Figure 10 (A) is a diagram showing a state before the bolt 1461 is screwed into the back member 144. Figure 10 (B) is a diagram showing a state where the bolt 1461 is screwed into the back member 144 .

[0070] Next, the operator inserts the back member 144 , to which the back sealing member 145 , the back threaded hole sealing member 148 , and the bolts 1461 are attached, into the airbag 11 through the opening at the top of the airbag 11 .

[0071] Next, the operator folds the top portion 112 of the airbag 11 (see Figure 3 ) passes through the opening O1 of the intermediate component 141 from the back side toward the front side, and then folds back from the inner side (the side close to the opening O1 on the XY plane) to the outer side (the side away from the opening O1 on the XY plane) when viewed from above. Figure 11 14 is a diagram showing a state in which the folded portion 112 of the airbag 11 is folded back from the inside to the outside of the intermediate member 141 and the back and front sides of the intermediate member 141 are covered by the folded portion 112 .

[0072] That is, Figure 11 As shown, the cover 111 is arranged in a state where it extends from the outside (the side farther from the opening O1 in the XY plane) toward the inside (the side closer to the opening O1 in the XY plane) when the intermediate member 141 is viewed from above, passes through the opening O1 inside the intermediate member 141, folds back, and then extends from the inside toward the outside when the intermediate member 141 is viewed from above.

[0073] Next, the worker uses a drill or other tool to open a hole for passing the shaft of the bolt 1461 in the portion of the bulb 111 that closes the hole H1 of the intermediate member 141 .

[0074] Next, the operator will first place the back side component 144 installed with the back side sealing component 145, the back side threaded hole sealing component 148, and the bolts 1461 into the inner side of the airbag 11, and position it in such a way that the positions of the 8 bolts 1461 are consistent with the positions of the 8 holes H1 of the middle component 141, and then insert the axes of these bolts 1461 into the holes H1 from the back side toward the front side (positive direction of the Z axis).

[0075] Next, the operator positions the front side component 142 with the front side sealing component 143 installed so that the positions of the eight holes H2 of the front side component 142 (connected to the holes H3 of the front side sealing component 143) are consistent with the positions of the axes of the eight bolts 1461, and then inserts the axes of these bolts 1461 into the holes H2 from the back side toward the front side (along the positive direction of the Z axis).

[0076] Next, the operator attaches the front-side threaded hole sealing component 147 to the shafts of each of the eight bolts 1461, with the shafts extending from the back side toward the front side through the holes of the front-side threaded hole sealing component 147. The operator then installs nuts 1462 on the shafts of each of the eight bolts 1461 and screws the bolts 1461 into the nuts 1462. As a result, the front-side component 142 and the back-side component 144 are tightened toward each other by the bolts 1461 and nuts 1462.

[0077] When the operator screws the bolt 1461 into the nut 1462 with an appropriate torque, the assembly 14 is mounted on the airbag 11 .

[0078] Figure 12 1 is a diagram showing the assembly 14 before and after installation of the airbag 11. Figure 12 (A) is a cross-sectional view showing the assembly 14 before being mounted on the airbag 11. Figure 12 (B) is a cross-sectional view showing the assembly 14 in a state after being mounted on the airbag 11 .

[0079] In the assembly 14, the bulb cover 111 is folded back through the opening O1 of the intermediate member 141 and held between the front member 142 and the back member 144. Therefore, even if a downward pulling force is applied to the bulb cover 111 by a load such as the container 13 via the sling 12, the bulb cover 111 is less likely to shift between the front member 142 and the back member 144. Consequently, the portion of the bulb cover 111 that contacts the shaft of the bolt 1461 is less likely to be damaged, such as by cracking.

[0080] [Variation]

[0081] The above-mentioned embodiments can be modified in various ways within the scope of the technical concept of the present invention. The following are examples of these modifications. Two or more of the following examples of modifications may be appropriately combined.

[0082] (1) In the above embodiment, the front side sealing member 143 is composed of a single member having a plurality of holes H3. Alternatively, the front side sealing member 143 may be composed of a plurality of annular sealing members arranged so as to contact the annular intermediate member 141 over the entire circumference.

[0083] Figure 13 14 is a diagram showing a state in which the front side sealing member 143 according to an example of this modification is arranged on the back surface of the front side member 142 (a diagram showing the front side member 142 viewed from the back). Figure 13 The front side sealing member 143 is composed of an annular sealing member 1431 arranged outside the plurality of holes H2 provided in the front side member 142 when the front side member 142 is viewed from above, and an annular sealing member 1432 arranged inside the plurality of holes H2.

[0084] like Figure 13 As shown, the sealing member 1431 disposed on the back side of the front member 142 is disposed in the assembly 14 in such a manner that it contacts the annular middle member 141 over the entire circumference of the outer side of the hole H1 opened in the middle member 141 when the middle member 141 is viewed from above. Figure 13 As shown, the sealing member 1432 disposed on the back surface of the front member 142 is disposed in the assembly 14 so as to contact the annular middle member 141 over the entire circumference of the inner side of the hole H1 opened in the middle member 141 when the middle member 141 is viewed from above.

[0085] Alternatively, at least one of the sealing member 1431 and the sealing member 1432 may be formed of two or more concentric sealing members. In this case, even if one of the two or more concentric sealing members fails to fully perform the sealing function due to damage or the like, the other sealing members still perform the sealing function, thereby preventing gas from leaking from the airbag 11.

[0086] (2) In the above embodiment, the back seal member 145 is composed of a single member having a plurality of holes H5. Alternatively, the back seal member 145 may be composed of a plurality of annular seal members arranged so as to contact the annular intermediate member 141 over the entire circumference.

[0087] Figure 14 14 is a diagram showing a state in which a back-side sealing member 145 according to an example of this modification is arranged on the front side of a back-side member 144 (a diagram showing the back-side member 144 as viewed from the front side). Figure 14The back side sealing member 145 is composed of an annular sealing member 1451 arranged outside the plurality of holes H4 provided in the back side member 144 when the back side member 144 is viewed from above, and an annular sealing member 1452 arranged inside the plurality of holes H4.

[0088] like Figure 14 As shown, the sealing member 1451 disposed on the front side of the back member 144 is disposed in the assembly 14 in such a manner that it contacts the annular middle member 141 over the entire circumference of the outer side of the hole H1 opened in the middle member 141 when the middle member 141 is viewed from above. Figure 14 As shown, the sealing member 1452 disposed on the front side of the back member 144 is disposed in the assembly 14 so as to contact the annular intermediate member 141 over the entire circumference of the inner side of the hole H1 opened in the intermediate member 141 when the intermediate member 141 is viewed from above.

[0089] Alternatively, at least one of the sealing member 1451 and the sealing member 1452 may be formed of two or more concentric sealing members. In this case, even if one of the two or more concentric sealing members fails to fully perform the sealing function due to damage or the like, the other sealing members still perform the sealing function, thereby preventing gas from leaking from the airbag 11.

[0090] (3) In the above embodiment, the shape of the intermediate member 141 when viewed from above is annular. However, as long as the shape of the intermediate member 141 when viewed from above is annular, it does not need to be annular. For example, the shape of the intermediate member 141 when viewed from above may be an elliptical ring, a polygonal ring with rounded corners, or the like. In this case, the shapes of the front member 142, the front sealing member 143, the back member 144, and the back sealing member 145 when viewed from above may correspond to the shape of the intermediate member 141.

[0091] (4) In the above-described embodiment, by chamfering the inner edge E1 and outer edge E2 of the intermediate member 141, the outer edge E3 of the front member 142, and the outer edge E4 of the back member 144, these edges come into contact with the cover 111, thereby reducing the risk of damage to the cover 111. In addition to or in place of chamfering these edges, the assembly 14 may include a cushioning member disposed so as to cover at least one of these edges.

[0092] For example, the entire surface of any one or all of the intermediate member 141, the front member 142, and the back member 144 may be covered with an elastic body such as silicone rubber. In this case, the elastic body functions as a buffer member.

[0093] (5) In the above embodiment, the upper end of the cover 111 is folded back after passing through the opening O1 inside the intermediate member 141 from the back side toward the front side. Alternatively, the upper end of the cover 111 may be folded back after passing through the opening O1 inside the intermediate member 141 from the front side toward the back side. Figure 15 1 is a cross-sectional view of the assembly 14 according to this modification.

[0094] (6) In the above embodiment, the assembly 14 is mounted on the top of the airbag 11. The assembly 14 may be mounted at a position other than the top of the airbag 11.

[0095] (7) In the above embodiment, the assembly 14 is a structure that opens and closes the exhaust hole of the airbag 11. However, the function of the assembly 14 is not limited to this. For example, the assembly 14 may function as a mounting platform for mounting various sensors or other devices on the outside or inside of the airbag 11.

[0096] (8) In the above-described embodiment, the front member 142 has no openings other than the hole H2 when the lid 1422 is closed, and the back member 144 has an opening on the inside other than the hole H4. As long as the required airtightness of the airbag 11 is maintained, a configuration in which the front member 142 has an opening other than the hole H2 (always open), a configuration in which the front member 142 has no openings other than the hole H2, or a configuration in which the back member 144 has no openings other than the hole H4 may be employed.

[0097] (9) In the above embodiment, the flying object 1 is a gas balloon. However, any flying object having an air bag is sufficient, and the type of the flying object 1 is not limited to a gas balloon. For example, the flying object 1 may be a balloon other than a gas balloon, such as a hot air balloon, or an airship.

[0098] (10) In the above-mentioned embodiment, the parts fastened by the fastening part 146 include, in addition to the intermediate part 141, the ball skin 111 in a state of covering the front and back sides of the intermediate part 141 after passing through the inner side of the intermediate part 141 and folding back, the front side part 142 and the back side part 144 arranged in a manner of sandwiching these intermediate parts 141 and the ball skin 111, the front side sealing part 143, the back side sealing part 145, the front side threaded hole sealing part 147, and the back side threaded hole sealing part 148 as parts for preventing gas from leaking from the inner side to the outer side of the airbag 11.

[0099] When the airtightness of the airbag 11 can be sufficiently ensured even without these sealing members (for example, when the flying object 1 is a hot air balloon and the airbag 11 does not require high airtightness), some or all of these sealing members may be omitted.

[0100] In addition, in addition to the intermediate component 141, the ball skin 111 in a state of covering the front and back sides of the intermediate component 141 after passing through the inner side of the intermediate component 141 and being folded back, and the front side component 142 and the back side component 144 arranged in a manner of sandwiching these intermediate component 141 and the ball skin 111, components other than the sealing component can also be installed on the airbag by fastening with the fastening component 146.

[0101] Figure 16 1 is a diagram showing a structure of an assembly 14 in which a rigid ring 149 is attached to the airbag 11 via a fastening member 146 as an example of such a member. The rigid ring 149 is disposed on the front side of the front member 142 via a spacer 140 and is fastened together with the front member 142 and the like via a fastening member 146 (bolts 1461 and nuts 1462).

[0102] For example, the upper end of the loading belt 16 is connected to the rigid ring 149. The lower end of the loading belt 16 is connected to the upper end of the sling 12. As a result, the load of the hanging object is not directly applied to the airbag 11, and the airbag 11 is less likely to be damaged by the load.

[0103] In addition, Figure 16 In the example shown, a disc-shaped module 17 is attached to the front member 142 so as to hermetically seal the opening of the front member 142 from the front side. Module 17 is easily attachable to and detachable from the front member 142 and is a replaceable module selected from a variety of modules having different functions. In this case, assembly 14 serves as a mounting base for attaching module 17 to the airbag 11.

[0104] (11) In the above embodiment, a hole for passing the shaft of the bolt 1461 is formed in the ball shell 111. However, a structure may be adopted in which the ball shell 111 does not have a hole for passing a part of the fastening member 146.

[0105] Figure 17 FIG is a cross-sectional view showing the assembly 14 of such a structure. Figure 17 In the illustrated assembly 14, the shaft of the bolt 1461 is inserted through the opening O1 inside the intermediate member 141. Therefore, it is not necessary to form a hole for inserting the shaft of the bolt 1461 in the cover 111 disposed to cover the intermediate member 141.

[0106] (12) In the above embodiment, the fastening member 146 composed of a bolt 1461 and a nut 1462 is used as a mechanism (fastening mechanism) for fastening the front member 142 and the back member 144 toward each other. A fastening mechanism other than the combination of the bolt 1461 and the nut 1462 may be used. For example, the front member 142 and the back member 144 may be fastened by crimping, a fastening band, or the like, rather than screwing.

[0107] Figure 18 14 is a diagram illustrating an assembly 14 having a fastening mechanism having a structure different from the combination of a bolt 1461 and a nut 1462 . Figure 18 The illustrated assembly 14 includes an inner cylindrical member 1463 that projects from the front member 142 toward the back (Z-axis negative direction) and an outer cylindrical member 1464 that projects from the back member 144 toward the front (Z-axis positive direction). Threads are cut into the outer surface of the inner cylindrical member 1463, and thread valleys are cut into the inner surface of the outer cylindrical member 1464.

[0108] In this modified example, the fastening mechanism is formed by an inner cylindrical member 1463 and an outer cylindrical member 1464, instead of the bolt 1461 and the nut 1462. Furthermore, the inner cylindrical member 1463 may be integrally formed with the front member 142, or may be attached to the front member 142 by welding, welding, or the like. Similarly, the outer cylindrical member 1464 may be integrally formed with the back member 144, or may be attached to the back member 144 by welding, welding, or the like.

[0109] The operator can tighten the front side member 142 and the back side member 144 in a direction toward each other by screwing the inner cylindrical member 1463 into the outer cylindrical member 1464 , thereby attaching the assembly 14 to the airbag.

[0110] (13) In the above embodiment, the front side member 142 and the front side sealing member 143 are arranged on the front side of the intermediate member 141 covered by the folded-back cover 111, with the front side sealing member 143 attached to the back side of the front side member 142. However, the front side sealing member 143 may not be attached to the front side member 142. In this case, the operator may arrange the front side sealing member 143 on the front side of the intermediate member 141 covered by the folded-back cover 111, and then arrange the front side member 142 on the front side of the front side sealing member 143.

[0111] In the above embodiment, the back member 144 and the back sealing member 145 are arranged on the back side of the intermediate member 141 covered by the folded-back cover 111, with the back sealing member 145 attached to the front side of the back member 144. However, the back sealing member 145 does not need to be attached to the back member 144. In this case, the operator only needs to arrange the back sealing member 145 on the back side of the intermediate member 141 covered by the folded-back cover 111 and then arrange the back member 144 on the back side of the back sealing member 145.

[0112] (14) In the above embodiment, the portion of each skin 111 located at the top of the airbag 11 is formed in a shape similar to a fish's tail fin. However, as long as the folded portion 112 is formed so as to be able to fold back from the inside to the outside after passing through the opening of the intermediate member 141, the shape of the skin 111 and the airbag 11 formed by joining the skins 111 can be variously modified. For example, when the assembly 14 is attached to the top of the airbag 11, the shape of the portion located at the top of the skin 111 can be rectangular, etc.

Claims

1. A flying object comprising: an intermediate member having an annular shape when viewed from above, and a flat plate shape when cut along a plane including a straight line in the direction of the plan view; a skin extending from the outside toward the inside of the intermediate member in a plan view, passing through the inner opening of the intermediate member, folding back, and then extending from the inside toward the outside of the intermediate member in a plan view; a front side member disposed on the front side of the intermediate member when a viewpoint side when the intermediate member is viewed from above is defined as the front side and a side opposite to the viewpoint side is defined as the back side; and a back member disposed on the back side of the middle member, The front side member and the back side member sandwich the folded back ball cover. The flying body further includes a fastening mechanism that fastens the front member and the back member sandwiching the folded-back cover in directions toward each other.

2. The flying object according to claim 1, wherein: The flying object has: a front sealing member having an annular shape, disposed between the front member and the intermediate member covered with the folded-back cover, and disposed so as to contact the annular intermediate member over its entire circumference; and The back side sealing member is annular and is disposed between the back side member and the intermediate member covered with the folded back cover, and is disposed so as to be in contact with the annular intermediate member over the entire circumference.

3. The flying object according to claim 2, wherein: The fastening mechanism includes a member disposed so as to penetrate a hole formed in the intermediate member. The front side sealing member and the back side sealing member are respectively arranged so as to contact the annular intermediate member over the entire circumference on both the outside and the inside of the hole opened in the intermediate member when the intermediate member is viewed from above.

4. The flying object according to claim 3, wherein: The front side sealing member includes a plurality of annular sealing members each of which is arranged so as to be in contact with the annular intermediate member over the entire circumference.

5. The flying object according to claim 3, wherein: The back-side sealing member includes a plurality of annular sealing members each of which is arranged so as to be in contact with the annular intermediate member over the entire circumference.

6. The flying object according to claim 1, wherein: The intermediate member has a circular ring shape when viewed from above.

7. The flying object according to claim 1, wherein: At least one of an inner edge portion of the middle member, an outer edge portion of the middle member, an outer edge portion of the front member, and an outer edge portion of the back member is chamfered.

8. The flying object according to claim 1, wherein: The flying body includes a cushioning member arranged to cover at least one of an inner edge portion of the intermediate member, an outer edge portion of the intermediate member, an outer edge portion of the front member, and an outer edge portion of the back member.

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