Air partition

Abstract

To provide a partition that can be housed compactly, is lightweight, easy to set up, and has excellent livability.SOLUTION: An air partition (100) includes a frame (40) having four or more even numbered pillars (10) and beams (20) with half the number of pillars (10) that connect the upper part of one pillar (10) and the upper part of another pillar (10) opposing the one pillar (10) in the diagonal direction, and intersect each other when viewed from above; and a sheet-like wall (30) that spans four or more even numbered pillars (10) and divides the inside and outside with the pillars (10) as the outer edge when viewed from above. The air partition (100) has an upper opening, and the frame (40) is composed of an air column and can repeatedly supply and exhaust gas.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to an air partition using an airtight air column. [Background technology]

[0002] In preparation for disasters, local governments, schools, companies, etc. stockpile various disaster prevention products. For example, when facilities such as gymnasiums are used as evacuation shelters, partitions may be stockpiled to ensure privacy for evacuees and reduce stress.

[0003] As a general partition, a cardboard partition that divides a predetermined space using cardboard as a wall member or floor member is commercially available (see Comparative Example 1 for a specific example).

[0004] Pop-up tents are also commercially available as disaster prevention tents for use in evacuation shelters and the like (see Comparative Example 2 for a specific example). The pop-up tent referred to here refers to a simple tent in which the frame and the awning are integrally constructed, and the frame, which is folded inside a storage bag, is removed from the storage bag and opens, quickly taking on a tent shape.

[0005] Another example of a simple tent that is highly compact when stored is one that uses air columns as its framework. The term "air column" refers to an airtight tubular molding that expands when gas is supplied. For example, Patent Document 1 discloses a dome-shaped tent that includes a frame made up of two inverted U-shaped frame members made of flexible tubes that can expand and maintain their shape by supplying gas to the interior, and a sheet member that covers the frame. The tent is erected on the ground by engaging anchor members inserted into the ground with locking portions provided on both ends of the flexible tubes that make up the frame members, and is formed by attaching the sheet member to the frame members with binding means such as string.

[0006] Patent Document 2 also discloses an example in which an inflatable rod-shaped body that expands into a rod shape by filling the interior with a fluid is used, and the inflatable rod-shaped body is bent at a desired bending angle to form the framework of a dome-shaped tent. [Prior art documents] [Patent documents]

[0007] [Patent Document 1] Utility Model Registration No. 3048042 [Patent Document 2] Japanese Patent Application Publication No. 2018-193749 Summary of the Invention [Problem to be solved by the invention]

[0008] Disaster prevention products are generally stored in limited storage spaces, so they are required to be compact and quickly available for use when needed, which is why they are required to be lightweight and easy to handle.

[0009] However, the above-mentioned cardboard partitions are heavy and difficult to carry, and are bulky when stored, making it difficult to store compactly. Furthermore, because cardboard partitions require the cardboard to be assembled three-dimensionally, they often take a long time to set up, and improvements in this respect were also desired.

[0010] On the other hand, pop-up tents have the advantage of being able to quickly take on tent shape when removed from the storage bag, meaning they can be set up in a short time. However, the tent frame is bulky and lacks compactness when stored, leaving room for improvement.

[0011] In contrast, according to the technologies disclosed in Patent Documents 1 and 2, the tent framework is made up of an air column that can be repeatedly inhaled and exhaled, so when stored, the gas inside the framework (air column) can be exhaled, making it possible to store it more compactly than a pop-up tent. However, the tents disclosed in Patent Document 1 and the tents using the frameworks disclosed in Patent Document 2 have dome-shaped ceilings, which means that the internal living space is small and there is a practically limited area where people can stand and move around, which creates problems with livability.

[0012] The present invention has been made in view of the above-mentioned problems. That is, an object of the present invention is to provide a partition that can be stored compactly, is lightweight, is easy to set up, and is comfortable to live in. [Means for solving the problem]

[0013] The air partition of the present invention comprises a framework having an even number of pillars (four or more), beams (half the number of the pillars) that connect the top of one pillar to the top of another pillar diagonally opposite the one pillar and intersect each other when viewed from above, and a sheet-like wall section that spans the even number of pillars (four or more) and uses the pillars as its outer edge when viewed from above to separate the inside from the outside, and is characterized by having an opening at the top, and the framework being composed of air columns that can repeatedly supply and exhaust gas. [Effects of the Invention]

[0014] The air partition of the present invention having the above-described configuration can be stored compactly, and the total weight can be kept to a reasonable level. In addition, the setup method is simple and it can be quickly put into use in a short time. [Brief explanation of the drawings]

[0015] [Figure 1] 1 is a perspective view of an air partition according to a first embodiment of the present invention. FIG. [Figure 2] FIG. 1 is a top view of an air partition according to a first embodiment of the present invention. [Figure 3]FIG. 2 is a plan view of the first rib portion of the air partition according to the first embodiment of the present invention in an evacuated state. [Figure 4] FIG. 4A is a schematic front view of the framework of the first embodiment in an exploded state, and FIG. 4B is a schematic front view of the framework of another example in an exploded state. [Figure 5] FIG. 10 is a perspective view of a framework according to a second embodiment of the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0016] [First embodiment] An air partition 100 according to a first embodiment of the present invention will be described below with reference to FIGS. 1 to 4. FIG. 1 is a perspective view of the air partition 100 according to the first embodiment of the present invention. FIG. 2 is a top view of the air partition 100. FIG. 3 is a plan view of the air partition 100 in an evacuated state, with the first ribs 40a spread out on the floor. FIG. 4A is a schematic front view of the frame 40 according to this embodiment, broken down into the first ribs 40a and the second ribs 40b, showing each frame as viewed from the front, and is an explanatory diagram illustrating an example of the engaging means 26 (see FIG. 2). FIG. 4B is also a schematic front view of the frame 40 according to this embodiment, broken down into the first ribs 40a and the second ribs 40b, showing each frame as viewed from the front, and is an explanatory diagram illustrating an engaging means different from the engaging means 26 according to this embodiment. Note that each of the drawings does not in any way limit the dimensions of the air partition according to the present invention.

[0017] In the following, several terms used in the description of the present invention will be explained. Unless otherwise specified, the vertical direction in the present invention refers to the top-bottom direction of the air partition installed on the installation surface in the usable state (with gas supplied to the air column). Furthermore, the axial direction in the framework refers to the extension direction of the framework's axis in the longitudinal direction, and the radial direction refers to the direction perpendicular to the axial direction. The inner periphery of a column refers to the circumferential surface of the column facing the inside of the air partition, and the outer periphery of a column refers to the circumferential surface of the column that is not the inner periphery. For convenience, when dividing a column into an inner periphery and an outer periphery, for example, when viewed from above, imagine a line I connecting the cross-sectional center of one column to the cross-sectional center of another column diagonally opposite to it, and a line II passing through the cross-sectional center of the column and perpendicular to line I. The circumferential surface located inside line II of the air partition can be referred to as the inner periphery, and the circumferential surface located outside line II of the air partition can be referred to as the outer periphery.

[0018] 1, the air partition 100 of this embodiment includes a framework 40 having four or more even number of pillars 10 and a plurality of beams 20 that connect the upper part of one pillar 10 to the upper part of another pillar 10 diagonally opposite the pillar 10 and intersect with each other in a top view. The number of beams 20 is half the number of pillars 10. The air partition 100 is constructed by providing walls 30 on the framework 40. The walls 30 are made of a sheet-like member that spans the four or more even number of pillars 10 described above and divides the inside from the outside with the pillars 10 as the outer edges when viewed from above. As shown in Figure 1, the air partition 100 has an opening at the top, which improves the livability and ventilation of the interior space 50 (see Figure 2) and also provides security. The framework 40 of the air partition 100 is made up of an air column, and can repeatedly supply and exhaust gas. Therefore, when stored, the gas inside the air column is exhausted to create an exhaust state, reducing the volume of the framework 40 and allowing for effective use of the space required for storage. Furthermore, when in use, all that is required is to supply air to the framework 40, which is the air column, making it easy to set up and allowing it to be quickly changed from a stored state to a used state.

[0019] The air partition 100 having the above configuration has four or more even number of columns 10, with one beam 20 provided diagonally for every two columns 10, and has a simple structure with few parts, yet provides good stability when installed. In addition, because the framework 40 is made up of air columns, it is lightweight and easy to handle, such as for transport. This embodiment will be described in further detail below.

[0020] (framework) The framework 40 has four or more even number of pillars 10, and a plurality of beams 20 that connect the upper part of one pillar 10 to the upper part of another pillar 10 diagonally opposite the one pillar 10 and that intersect with each other in a top view. Specifically, in this embodiment, the framework 40 is made up of four pillars 10 (10a, 10a', 10b, 10b'), a first beam 20a that connects the upper end of pillar 10a with the upper end of pillar 10a', and a second beam 20b that connects the upper end of pillar 10b with the upper end of pillar 10b'.

[0021] In this embodiment, each of the two beams 20 is configured to extend in a direction substantially horizontal to the installation surface. Also, in this embodiment, the four pillars constituting the framework 40 extend substantially vertically upward from the installation surface. Therefore, the air partition 100 has an overall cubic appearance. A cubic shape is, more specifically, a cube or rectangular parallelepiped. A cubic air partition 100 like this requires fewer components to form the beams 20 than, for example, a dome-shaped tent, making it preferable in terms of economy, ease of manufacturing, and light weight. Furthermore, because the distance from the installation surface to the beams 20 is constant, by designing the height of the columns 10 to be appropriately large, the user is not restricted in their movements, such as bending over, in either the center or near the walls 30 within the interior space 50 of the air partition 100. However, in the present invention, the external shape of the air partition 100 is not limited to this, and for example, as another embodiment not shown, the present invention also includes an air partition in which the beam portions 20 are each formed in an upwardly protruding shape, giving it a dome-shaped appearance.

[0022] The framework 40 is made up of air columns, and more specifically, both the column portions 10 and the beam portions 20 are made up of air columns. In the present invention, the term "air column" refers to a small-diameter bag-like body that is airtight and capable of repeatedly supplying and evacuating gas, and can be constructed in the same manner as the framework that constitutes an air tent, etc. The air column can be constructed, for example, from a tube manufactured using a resin or rubber member, an inner tube constructed by covering the tube with an outer layer made of fabric or nonwoven fabric, or a substrate-attached tube constructed from a coated fabric in which a resin layer or rubber layer (hereinafter also referred to as a resin layer, etc.) is provided on at least one side of a substrate made of fabric, etc. The air column is formed into a suitable tubular shape by cutting the component member into a desired shape and processing it using a welding process, adhesive, or other processing method.

[0023] Among these, an air column formed from a tube with a substrate is suitable for repeated use because it has a simple configuration and the substrate prevents the resin layer, etc. in the tube (air column) from expanding too much. The substrate-attached tube used for the air column may be, for example, a tube formed into a tubular shape using one sheet of coated fabric with a resin layer, etc., provided on one side of the substrate, with the substrate on the outside, or may be a tube formed into a tubular shape using two sheets of coated fabric with a resin layer, etc., provided on one side of the substrate, with the resin layers, etc., abutting against each other and stacked so that the substrate is exposed on both the inside and outside.

[0024] The framework 40, which is made up of air columns, expands when air is supplied, exerting its strength as the columns 10 and beams 20. However, because the air columns are flexible, if a sufficient amount of gas is supplied to the interior, the shape when expanded may be deformed from the shape shown before air is supplied (the shape of the exhaust body). For example, to satisfactorily realize an air partition 100 in which, when in use as in this embodiment, the columns 10 extend substantially vertically upward from the installation surface and the beams 20 extend substantially horizontally relative to the installation surface, it is preferable to design the exhaust body so that the interior angle θ formed by the columns 10 and the beams 20 exceeds 90 degrees, as shown in Fig. 3, and the interior angle θ is preferably between 95 degrees and 120 degrees, and more preferably between 100 degrees and 115 degrees. When the air column exhibits such an interior angle θ, when air is supplied to the air column and expanded, it is easy to realize a framework 40 having columns 10 extending substantially vertically upward from the installation surface and beams 20 extending substantially horizontally relative to the installation surface, making it easy to provide an air partition 100 with a stable installation posture.

[0025] In this embodiment, the frame 40 is formed by a plurality of ribs each having two pillars 10 and beams 20 connecting the top of one pillar 10 to the top of another pillar 10. Specifically, as shown in FIG. 1 , the first rib 40a is formed by pillars 10a, 10a', and a first beam 20a connecting them, and the second rib 40b is formed by pillars 10b, 10b', and a second beam 20b connecting them, and the first rib 40a and second rib 40b form the frame 40. Here, the first rib 40a and the second rib 40b are formed independently, and for each rib, the two pillars and the beam 20 connecting the top of one pillar 10 to the top of the other pillar 10 diagonally opposite to the first pillar 10 are connected to each other so that gas can flow between them. Therefore, the entire frame can be expanded by supplying air through the air supply / exhaust hole 12 provided in one of the column 10 or beam 20 members in one frame. By constructing the frame 40 from multiple independent frame parts in this way, the frame 40 can be easily manufactured, and a three-dimensional frame 40 can be constructed using frame parts (air columns) with a simple configuration, which effectively prevents gas leakage from the air columns. However, the present invention is not limited to the above-mentioned embodiments, and includes, for example, air partitions constructed as an integrally molded product in which multiple column and beam portions are all connected together, and air partitions in which the first and second rib portions are constructed independently and are connected to each other by a bypass-like connecting air passage.

[0026] In this embodiment, the first rib portion 40a and the second rib portion 40b in the expanded state are substantially U-shaped, and the first beam portion 20a of the first rib portion 40a and the second beam portion 20b of the second rib portion 40b intersect in top view as shown in Fig. 2. As a modification of this embodiment, in addition to the first rib portion 40a and the second rib portion 40b, a third rib portion (not shown) may be further provided, and even in such a case, these three rib portions are configured to intersect with each other at the beam portions in top view.

[0027] At the points where the beams 20 (first beam 20a and second beam 20b) intersect with each other in a top view, it is preferable that the intersecting angle be fixed by an engaging means 26 for maintaining the relative positional relationship between one beam 40 (first beam 20a) and the other beam 40 (second beam 20b). This fixes the positional relationship between the separate first rib 40a and second rib 40b, allowing for the construction of an integrated framework 40 and further stabilizing the installation posture of the air partition 100.

[0028] 2 and 4A, the engaging means 26 is implemented by including an insertion hole 22 provided radially in the axial middle of the first beam portion 20a and an insertion portion 24 of a small diameter provided axially in the axial middle of the second beam portion 20b. Here, the insertion hole 22 is provided in the vertical middle of the first beam portion 20a, and the axial direction of the insertion portion 24 is the same as the axial direction of the second beam portion 20b. With the insertion portion 24 inserted into the insertion hole 22, the first rib portion 40a including the first beam portion 20a and the second rib portion 40b including the second beam portion 20b can be expanded by supplying air, thereby fixing the relative positions of the first beam portion 20a and the second beam portion 20b in a state where they are substantially perpendicular to each other. Furthermore, by engaging the first rib portion 40a and the second rib portion 40b with the engaging means 26, these two ribs can be designed to have the same height, making it easy to align the heights of the two beam portions 20. 4A is configured as a relatively narrow-diameter portion of the second beam portion 20b, and is a portion that is prone to warping when air is supplied. However, because the insertion portion 24 is inserted into the insertion hole 22, warping is suppressed by the restriction of the inner peripheral surface of the insertion hole 22. To more reliably suppress warping of the insertion portion 24, in this embodiment, the axis of the insertion portion 24 is configured to coincide with the axis of the second beam portion 20b, and the axis of the insertion hole 22 is configured to intersect the axis of the first beam portion 20a at a right angle. As a result, the narrow-diameter portion of the insertion portion 24 is uniformly restricted in the up-down and left-right directions by the inner peripheral surface of the insertion hole 22, and warping during inflation is sufficiently suppressed. In addition, the axis of the insertion portion 24 here refers to the axis extending in the longitudinal direction of the insertion portion 24, and the axis of the insertion hole 22 refers to the axis extending in the opening direction of the opening of the insertion hole 22 (the direction connecting the centers of the two opening end faces).

[0029] In this embodiment, in order to more reliably fix the relative positions of the first beam portion 20a and the second beam portion 20b in a state where they are approximately perpendicular to each other, the diameter of the insertion hole 22 and the diameter of the insertion portion 24 are designed to be approximately the same dimensions, and the length of the insertion portion 24 is designed to be approximately the same dimensions as the diameter of the first beam portion 20a. The timing for inserting the insertion portion 24 into the insertion hole 22 is not particularly limited, but the framework 40 can be easily set up by inserting the second rib portion 40b into the insertion hole 22 before supplying air, positioning the insertion portion 24 at the position of the insertion hole 22, and then supplying air.

[0030] FIG. 4B shows an example of a different engagement means. In FIG. 4B, a first cutout 27 is provided in the axially intermediate portion of the first beam portion 20a, extending downward from the top to the vertically intermediate portion. Also, a second cutout 28 is provided in the axially intermediate portion of the second beam portion 20b, extending downward from the bottom to the vertically intermediate portion. The engagement means implemented in the first cutout 27 and the second cutout 28 is illustrated. By intersecting the first beam portion 20a and the second beam portion 20b formed as described above and engaging the first cutout 27 and the second cutout 28 with each other, the crossing angle between the two beam portions 20 can be maintained. To more accurately maintain the crossing angle, it is preferable to design the length (axial dimension) of each of the first cutout 27 and the second cutout 28 to be the same as or slightly larger than the diameter of the other beam portion. The slightly larger dimension here means a dimension that allows the first notch 27 and the second notch 28 to fit snugly together when the beam is expanded by air supply.

[0031] 4B, first cutout portion 27 and second cutout portion 28 are relatively small diameter portions in each beam portion 20, and therefore warping may be observed in the cutout portions when air is supplied and the beam portion 20 expands. If this causes problems such as making it difficult to show the horizontality of beam portion 20 relative to the installation surface, it is advisable to cover first cutout portion 27 and second cutout portion 28 with a protective sheet or the like to form a multi-layer structure and prevent warping.

[0032] The first rib portion 40a and the second rib portion 40b, which are formed separately, are each provided with an air supply / exhaust hole 12. In this embodiment, to facilitate air supply work from outside the air partition 100, the air supply / exhaust hole 12 is provided, for example, on the outer periphery of the pillar portion 10. Because the outer periphery of the pillar portion 10 is covered with the wall portion 30, a window portion 36 is provided at a predetermined position on the wall portion 30, and by opening the window portion 36, the air supply / exhaust hole 12 is exposed, allowing air supply work or air exhaust work to be performed.

[0033] (wall) The wall 30 is made of a sheet-like material that spans four or more even number of pillars 10 and divides the interior and exterior with the pillars 10 as the outer edge when viewed from above. More specifically, in this embodiment, the wall 30 is made of a sheet-like material that spans the outer peripheries of the four pillars 10 (pillars 10a, 10a', 10b, 10b') and divides a quadrilateral space 50 when viewed from above. However, the installation mode of the wall in the present invention is not limited to this, and for example, the wall 30 may be attached to the rib portion 40 and span the inner peripheries of the four pillars 10. Even in this case, the wall 30 can divide the interior and exterior as the outer edge of the pillars 10 when viewed from above. As shown in FIG. 1, the air partition 100 has walls 30 on its lateral sides and no ceiling, so it is open at the top.

[0034] Examples of sheet-like materials that make up the wall 30 include resin sheets made from resin materials such as polyethylene resins and polypropylene resins, or fabrics such as woven or knitted fabrics made from natural fibers or synthetic fibers such as polyester fibers or nylon fibers, or nonwoven fabrics, with woven fabrics being preferred from the standpoints of volume when stored, light weight, tear resistance, breathability, etc. Because the air partition 100 is capable of providing a private space, it is preferable that the wall 30 be made from an opaque material.

[0035] The wall section 30 in this embodiment has a length that extends from the top to the bottom of the column section 10, covers the outer periphery of the column section 10, and is provided around the entire circumferential direction of the air partition 100, with an entrance / exit 32 provided on any one of the lateral sides. The wall section 30 in this embodiment is formed so as to be separable from the framework 40, and has four faces located on the lateral sides of the cube-shaped air partition 100, which form a ring in the circumferential direction, with covering sections 34 that protrude horizontally from the four upper corners. The covering sections 34 have an area that is sufficient to cover part or all of the upper ends of the column sections 10, and by covering the upper ends of each of the four column sections 10 with the covering sections 34, the wall section 30 is installed relative to the framework 40 so as to be suspended from above. To further stabilize the installation of the wall 30, a joint may optionally be provided on the back surface of the wall 30 (the surface facing the interior of the air partition 100) to join it to the column 10. The joint may be, for example, a string provided on the back surface of the wall 30 that can be tied to the column 10, or a first joining means such as a hook-and-loop fastener or a point fastener provided at any position on the outer periphery of the column 30, and a second joining means that pairs with the first joining means provided on the back surface of the wall 30, and these may be joined together.

[0036] As a modified example of this embodiment (not shown), when the wall portion 30 is provided around the inner periphery of the column portion 10, the joint may be, for example, a string portion provided on the surface of the wall portion 30 and capable of being tied to the column portion 10, or a first joint means such as a hook-and-loop fastener or a point fastener may be provided at any position on the inner periphery of the column portion 30, and a second joint means that pairs with the first joint means may be provided on the surface of the wall portion 30, and these may be joined together. As a further modification not shown, the wall 30 may be pre-fixed to the column 10 by sewing. This embodiment is advantageous in that the air partition 100 can be quickly brought into use by supplying air to expand the framework 40.

[0037] The overall size of the air partition 100 described above is not particularly limited and can be designed to suit the intended use. For example, the dimensions of a partition for an evacuation shelter (e.g., 2m x 2m x 2m) as specified in disaster prevention guidelines are recommended. Furthermore, the framework 40 can be, for example, circular in cross section and configured from an air column with a diameter of approximately 5cm to 18cm, but is not limited to this.

[0038] [Second embodiment] Next, a second embodiment of the present invention will be described with reference to Fig. 5. Fig. 5 is a perspective view of a framework 40 in the second embodiment of the present invention.

[0039] The second embodiment is configured similarly to the first embodiment, except that the configuration of the framework 40 differs from that of the first embodiment. In other words, the framework 40 in the first embodiment can be interchanged with the framework 40 in this embodiment to implement the air partition of the present invention. Therefore, the following description will mainly focus on the differences between the framework 40 in this embodiment and the first embodiment, and will omit a description of the aspects that can be configured similarly to the first embodiment.

[0040] The framework 40 in the second embodiment includes a first framework 40a and a second framework 40b that are separate and generally U-shaped. In this embodiment, an air supply / exhaust hole 12 is provided at an arbitrary location of the second framework 40b (at the lower end of the column 10b in FIG. 5), and the first beam 20a and the second beam 20b are connected by a bypass-shaped connecting air passage 14 that allows gas to flow. Therefore, air can be supplied to the entire framework 40 by supplying air through a single air supply / exhaust hole 12. The air partition of the present invention can also be designed with only one air supply / exhaust hole by connecting multiple frameworks manufactured separately with connecting air passages, as in this embodiment.

[0041] In this embodiment, the pillars 10a, 10a' provided on the first rib portion 40a are formed slightly longer (specifically, by approximately the diameter of the first beam portion 20a) than the pillars 10b, 10b' provided on the second rib portion 40b. Therefore, as shown in Fig. 5, the first rib portion 40a is placed so as to cover the second rib portion 40b, and the first beam portion 20a and the second beam portion 20b intersect in a top view.

[0042] In this embodiment, at the point where the first beam portion 20a and the second beam portion 20b intersect, a repeatedly detachable joining means 42 such as a hook-and-loop fastener or a point fastener may be provided on the underside of the first beam portion 20a and the upper side of the second beam portion 20b. In addition, instead of providing the joining means 42, or in order to capture the joining means 42, the intersection of the first beam portion 20a and the second beam portion 20b may be joined with a joining means (not shown) such as a string.

[0043] In this embodiment, the joining state between the first beam portion 20a and the second beam portion 20b by the joining means 42 described above is not limited to a specific intersection angle. In other words, in this embodiment, the intersection angle between the first beam portion 20a and the second beam portion 20b can be changed to a desired angle. Therefore, if it is desired to use the interior of the air partition 100 widely, for example, the first beam portion 20a and the second beam portion 20b may intersect at an angle of 90 degrees when viewed from above. On the other hand, if the space in which the air partition 100 is to be installed is narrow, the first beam portion 20a and the second beam portion 20b may intersect at an angle of less than 90 degrees when viewed from above.

[0044] In this embodiment, the framework 40 is provided with a lower end support portion 60 at the lower end of the column portion 10. The lower end support portion 60 includes a support portion 64 having a tubular body with an open top into which the lower end of the column portion 10 can be inserted. By inserting the lower end of the column portion 10 into the support portion 64, the lower end of the column portion 10 is stably supported, and the contact portion with the installation surface is essentially the lower end surface of the tubular body of the lower end support portion 60, rather than the lower end surface of the column portion 10, which is curved downward due to expansion, thereby more stabilizing the installation state of the air partition 100. Furthermore, the lower end support portion 60 may include a base plate 62 on the lower surface of the support portion 64, which has the same area as or a larger area than the bottom surface of the support portion 64. The base plate 64 on the lower surface of the support portion 64 further stabilizes the installation state. In addition, to facilitate attachment and detachment of the column 10 to and from the lower-end support part 60, a ring-shaped cover part (not shown) made of a flexible material may be provided on the upper opening of the lower-end support part 60. The ring-shaped cover part is a cylindrical body having a predetermined length and open at both ends, with one open end fixed along the upper opening of the lower-end support part 60. By inserting the lower end of the column 10 into the other open end of the insertion part, the lower end of the column 10 can be smoothly inserted into the rigid lower-end support part 60. From the viewpoint of making the insertion of the lower end of the column 10 smoother, it is preferable that one open end of the ring-shaped insertion part be fixed along the inner circumferential surface of the lower-end support part 60. From the same viewpoint, the opening diameter of the other open end of the insertion part is preferably equal to or larger than that of the one open end, and more preferably larger than that of the one open end. The support portion 64 may be used in the framework 40 in the first embodiment described above.

[0045] The support portion 64 is made of a tubular member with an open top, made of a hard material such as resin or metal. For example, a PVC pipe made of vinyl chloride resin is suitable, but is not limited to this. Similarly, the base plate 62 is preferably made of a hard material such as resin or metal, so that the installation state of the framework 40 is more stable. The cover is made of a flexible material, more specifically, a flexible material such as a resin sheet, fabric, or knitted fabric. This is preferable because it makes it easier to attach and detach the column 10 to and from the lower end support 60.

[0046] From the viewpoint of reducing the volume required for storage, it is preferable that the support part 64 and the base plate 62 are configured to be repeatedly detachable, and in this case, the diameters of the multiple support parts 64 may be slightly changed so that they can be stored in a nested state. It is also possible to store the folded framework 40 inside the support part 64. Furthermore, a non-slip member such as rubber may be provided on the installation surface side of the lower end support portion 60 or the substrate 64. [Example]

[0047] Examples of the present invention will be described below. Example 1 As Example 1, an air partition having a configuration similar to that of the first embodiment (see FIGS. 1 and 2) and dimensions of 2 m×2 m×2 m was prepared. Specifically, the framework used a first framework having two columns and a beam connecting the top ends of the columns, with a 60 mm diameter through-hole formed in the middle of the beam, and a second framework having two columns and a beam connecting the top ends of the columns, with a 60 mm diameter, 20 mm long thin through-hole formed in the middle of the column. One air intake and exhaust hole was provided in each of the first and second frameworks. In an exhaust state, the second framework was inserted into the through-hole of the first framework, and the framework was constructed by combining the first and second frameworks so that the through-hole of the second framework was positioned in the through-hole of the first framework. The air columns constituting the first and second frameworks were made of a coated fabric (basis weight 300 g / m2) with a polyurethane resin layer formed on one side of a nylon fiber substrate. 2 ) was used to create a diameter of 100 mm. In addition, polyester fiber (manufactured by Toray Industries, Inc., Tetoron (registered trademark)) was used, and the basis weight was 68 g / m 2 A cylindrical wall with four 2m x 2m faces was created using a sheet member made of woven fabric manufactured to have a shape like this. A covering part capable of covering the top end of the column was formed at the top end of the boundary between the wall faces. In Example 1, the second rib part is inserted into the insertion hole of the first rib part, and the two ribs are assembled together so that the insertion hole of the second rib part is positioned in the insertion hole of the first rib part. The start of setup is when air begins to be supplied to the prepared frame, and the end of setup is when the wall parts have been installed on the frame by covering the upper ends of each of the four pillar parts with the covering parts provided on the wall parts, after the frame has been sufficiently supplied with air.

[0048] (Comparative Example 1) A simple, multi-purpose partition (manufactured by Tomei Kogyo Co., Ltd., product name: E-Wall) was prepared, consisting of four 2m x 2m cardboard walls.

[0049] (Comparative Example 2) A pop-up tent (manufactured by BRAVO Co., Ltd., product name: Shelter Guard Standard Type) with a floor area of ​​2.1 m x 2.1 m and a height of 1.8 m and an opening at the top was prepared.

[0050] The volume and total weight when stored were confirmed for the above-mentioned Example 1 and Comparative Examples 1 and 2. The time required to set up Example 1 and Comparative Examples 1 and 2 was also measured and evaluated as follows. The above-mentioned confirmation details and evaluation results are all shown in Table 1. 〇···Setup time was less than 5 minutes. ×...Setup time exceeded 5 minutes.

[0051] [Table 1] [Industrial Applicability]

[0052] The air partition of the present invention can be stored compactly, its total weight can be kept to a reasonable level, it is easy to set up, and it can be quickly put into use in a short time, making it suitable as a stockpiled disaster prevention product and can easily provide private space for evacuees in evacuation shelters such as gymnasiums. However, the air partition of the present invention is not limited to the above uses, and can also be used to provide emergency medical treatment spaces for providing first aid to injured people or emergency patients in the event of an accident, temporary changing rooms, etc., and can be used in a wide range of applications, including outdoors.

[0053] The above embodiment encompasses the following technical ideas. (1) A framework having four or more even number of columns, and beams that connect the upper part of one column to the upper part of another column that is diagonally opposite to the one column and intersect each other in a top view, the number of which is half the number of the columns; a sheet-like wall portion that spans the four or more even number of column portions and divides the interior and exterior with the column portions as an outer edge when viewed from above, It is an opening at the top, An air partition characterized in that the framework is composed of an air column and can repeatedly supply and exhaust gas. (2) An air partition as described in (1) above, in which, in the frame in an exhaust state, the interior angle formed by one end side of the beam portion and the upper end side of the column portion exceeds 90 degrees. (3) An air partition according to (1) or (2) above, wherein the beam portion extends in a direction substantially horizontal to the installation surface. (4) An air partition described in any one of (1) to (3) above, wherein the framework is constructed using two or more bone sections each having two of the pillar sections and a beam section connecting the top of one of the pillar sections to the top of the other pillar section. (5) An air partition as described in (4) above, in which the intersection angle of the beam portions at the points where they intersect with each other is fixed by an engagement means for maintaining the relative positional relationship between the first beam portion and the other beam portions. (6) The engaging means includes an insertion hole provided in the radial direction at an intermediate portion of the first beam portion, and a small-diameter insertion portion provided in the axial direction of the second beam portion at an intermediate portion of the second beam portion, The insertion hole is provided in a middle portion of the first beam portion in the up-down direction, The air partition according to (5) above, wherein the axial direction of the insertion portion is the same as the axial direction of the second beam portion. (7) An air partition as described in (6) above, in which the axis of the insertion hole intersects with the axis of the first beam portion at a right angle, and the axis of the insertion portion coincides with the axis of the second column portion. [Explanation of symbols]

[0054] 10, 10a, 10a', 10b, 10b'...Column part 12. Intake and exhaust vent 14. Connecting ventilation channel 20...beam section 20a...First beam part 20b...Second beam part 22 Insertion hole 24 Insertion part 26 Engagement means 27 First notch 28 Second notch 30...Wall part 32...Entrance / exit 34... Covering part 36 Window section 40...Framework 40a...first bone 40b...Second bone part 42...junction 50...space 60...Lower end support part 62... Circuit board 64...Support part 100···Air partition θ...inner angle

Claims

1. a framework having four or more even number of pillars, and beams that connect an upper portion of one pillar to an upper portion of another pillar diagonally opposite to the one pillar and intersect with each other in a top view, the number of beams being half the number of the pillars; a sheet-like wall portion that spans the four or more even number of column portions and divides the interior and exterior of the structure with the column portions as its outer edge when viewed from above; It is an opening at the top, An air partition characterized in that the framework is composed of an air column and can repeatedly supply and exhaust gas.

2. 2. The air partition according to claim 1, wherein in the frame in an exhaust state, the interior angle formed by one end side of the beam portion and the upper end side of the column portion exceeds 90 degrees.

3. The air partition according to claim 2 , wherein the beam portion extends in a direction substantially horizontal to the installation surface.

4. An air partition as described in any one of claims 1 to 3, wherein the framework is constructed using two or more bone sections each having two pillars and a beam section connecting the top of one pillar with the top of the other pillar.

5. 5. An air partition as described in claim 4, wherein the intersection angle of the beam portions at the points where they intersect with each other is fixed by an engaging means for maintaining the relative positional relationship between the first beam portion and the other beam portions.

6. the engaging means includes an insertion hole provided in a radial direction at an intermediate portion of the first beam portion, and a small-diameter insertion portion provided in an axial direction of the second beam portion at an intermediate portion of the second beam portion, The insertion hole is provided in a middle portion of the first beam portion in the up-down direction, The air partition according to claim 5 , wherein the axial direction of the insertion portion is the same as the axial direction of the second beam portion.

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