JP2010059628A - Arch air column and air column tent - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an arch air column that curves in an arch shape when pressurized by easily installing an extension suppressing means on a cylindrical woven fabric obtained by weaving the warp having extensible yarn with the weft having normal yarn, and an air column tent utilizing the arch air column. <P>SOLUTION: A flexible airtight cylindrical body 5 is formed on the cylindrical woven fabric obtained by weaving the extensible warp 10 which extends in the longitudinal direction and which has an extensibility in the longitudinal direction with the weft 11 which extends in the circumferential direction by applying an airtightness treatment. A bag part 6 is formed in a part of the cylindrical woven fabric in the circumferential direction along the longitudinal direction. The extension suppressing means 7 is inserted into the bag part 6. <P>COPYRIGHT: (C)2010,JPO&amp;INPIT

Description

  The present invention relates to an arch-shaped air column that is curved in an arch shape in a state where a flexible airtight cylinder is inflated by air pressure, and an air column tent formed by extending a sheet along the skeleton using the arch-shaped air column as a skeleton. It is about.

  In general, a tent stands upright on the ground, and the tent is formed by extending the sheet with the support as a support, but it requires a long bar-like support and is bulky to be accommodated and transported when not needed. It was inconvenient.

  Therefore, compressed air is pressed into a flexible airtight cylinder and inflated to form a rod-shaped air column, a frame is formed by combining these air columns, and a sheet is placed on the outside to form a tent. (Japanese Utility Model Laid-Open No. 6-56395).

  However, in this case, when compressed air is pressed into the cylinder, the cylinder forms a straight air column, so the individual air columns must be straight, and in order to form a tent framework, These linear air columns are connected to form a frame of a desired shape, and the structure becomes complicated.

  Japanese Patent Application Laid-Open No. 7-71140 discloses that a normal woven fabric woven in the vertical and horizontal directions and a bias woven fabric woven with diagonal threads are joined at both side edges to form a cylinder and compressed air is injected. It is shown that a biased woven fabric woven with diagonal threads is elongated to form an air column having a curved shape as a whole.

  However, in this case, since two woven fabrics having different properties are joined to form a cylindrical shape, at least two joint portions are formed in the circumferential direction of the air column, and the joint portions have different properties. Since the woven fabric is joined, the behavior of the two woven fabrics is different at the time of pressurization, so that a large force is applied to the joined portion, and the joining strength may be greatly reduced.

  In view of such circumstances, the applicant has developed an air column that is a column of an air column tent that is a single tubular woven fabric and is curved in an arch shape by applying internal pressure. Patent application is filed as 42436.

  This fabric uses a warp thread as a warp thread, weaves a tubular woven fabric using normal yarns for weft, and extends along the longitudinal direction of a part of the circumferential direction of the tubular woven fabric. Stretching restraining means such as sticking tape is applied, and by applying internal pressure, the warp yarns are stretched in the length direction and part of the circumferential direction is restrained by the stretching restraining means. By this, it curves in the shape of an arch as a whole.

  FIG. 1 shows an air column tent 1 according to the present invention, in which a plurality of the air columns 2 are arranged and pressure fluid is fed to inflate the air column 2 into a cylindrical shape, as shown in the drawing. It is erected in an arch shape. Therefore, a plurality of air columns 2 erected in an arch shape are provided as a framework, and by extending the sheet 3 along the framework on the outside, the air column 2 supports the seat 3 to form a space inside, Build a tent.

However, with this material, it is difficult to apply a tape to a tubular woven fabric. In particular, when affixing tape to a tubular cloth, it is desirable to affix it to the inner surface of the tubular cloth, but the tape position is regulated straight from the outside of the tubular cloth, and it is firmly attached to the tubular cloth. It must be glued or sewn together, which is extremely difficult.
Japanese Utility Model Publication No. 6-56395 JP-A-7-71140

  The present invention has been made in view of such circumstances, and easily suppresses elongation of a tubular woven fabric formed by weaving warp yarns having the above-described stretchable yarns and normal weft yarns. It is an object of the present invention to provide an arched air column that is provided with means and curves in an arch shape when pressurized, and an air column tent using the arched air column.

  Thus, the arched air column of the present invention is airtight on a tubular woven fabric formed by weaving stretchable warp yarns extending in the length direction and having stretchability in the length direction and weft yarns extending in the circumferential direction. A flexible airtight cylindrical body is formed by processing, a bag portion is formed along a length direction of a part of the cylindrical woven fabric in the circumferential direction, and an extension suppressing member is inserted into the bag portion. It is characterized by this.

In the present invention, it is preferable that the tubular woven fabric is a tubular fabric in which elastic warp yarns and weft yarns are woven into a tubular shape. In addition, as the tubular woven fabric, a tubular fabric obtained by joining both side edges of a woven fabric made of stretch warp and weft can be used.
Moreover, it is preferable that the said airtight cylinder body gives the airtight lining to the at least inner surface of the said cylindrical woven fabric. As another form of the airtight cylindrical body, an airtight treatment may be applied to a woven fabric in which stretch warp yarns and weft yarns are woven, and both side edges thereof are joined to form a cylindrical shape.

  It is preferable that the bag portion in the present invention is formed by a vertical-mouthed bag weave structure in a part of the cylindrical woven fabric in the circumferential direction. Further, as another structure of the tubular woven fabric, it is a tubular shape by joining both side edges of a woven fabric woven with stretch warp and weft, and the both side edges of the woven fabric are overlapped, It is also possible to join both side edges of the overlapped portion to form a bag portion between the joined portions.

  As the extension suppressing member, a rope, string, wire, or other string-like object having no extension in the length direction can be used. Further, it is also preferable to use a belt that does not have stretchability in the length direction as the stretch suppressing member.

  In addition, the air column tent of the present invention forms a tent frame by inflating and bending the pressure fluid into the arch type air column described in any of the above, and forming a sheet along the frame. It is characterized by the extension.

  According to the present invention, since the extension suppressing member is inserted between the bag portions in the cylindrical woven fabric, the extension suppressing member can be easily inserted after forming the cylindrical woven fabric, By sending the pressure fluid into the hermetic cylinder and applying an internal pressure, the bag portion is pressed against the extension suppressing member, the extension is suppressed, and an arch-shaped air column can be formed.

  FIG. 2 shows an arched air column 4 of the present invention. In the arched air column 4, reference numeral 5 denotes an airtight cylinder, and a bag portion 6 is formed along a length direction in a part of the airtight cylinder 5 in the circumferential direction. The extension restraining member 7 is inserted through the end.

  FIG. 3 shows the arched air column 4 in more detail. The airtight cylinder 5 is formed by forming an airtight lining 9 on the inner surface of a cylindrical woven fabric, and the cylindrical woven fabric is a warp. A tubular cloth 8 in which 10 and weft 11 are woven into a tubular shape is used.

  As the warp yarn 10, a stretchable warp yarn having stretchability in the length direction is used. As a material of the warp yarn 10, a synthetic fiber winding yarn, a polyurethane elastic yarn, or the like can be used. Moreover, as the weft thread 11, a normal natural fiber or a synthetic fiber can be used, and it is preferable to use the thread | yarn which does not have a stretching property.

  In this specification, “does not have stretchability” means that it is not subjected to a treatment for imparting stretchability, or is not characterized by a point that stretchability is further large, and is a normal natural fiber. Or, synthetic fibers are used, and this does not exclude even the stretchability that these have as their original physical properties.

  Further, as a means for hermetically configuring the hermetic cylinder 5, it is possible to simply insert an airtight tube through the cylindrical woven fabric, but an airtight lining directly on at least the inner surface of the cylindrical woven fabric. 9 is preferably formed.

  Further, a longitudinal mouth pouch weave structure 12 extending in the length direction is formed in a part of the circumferential direction of the tubular cloth 8, and in the vertical mouth pouch weave structure 12, the tubular cloth 8 is partially doubled inside and outside. The bag portion 6 is formed. Further, a flexible rubber or plastic lining 9 is applied to the inner surface of the cylindrical cloth 8 to keep it airtight.

  In this example, a belt made of a flexible fabric is used as the extension suppressing member 7. The extension suppressing member 7 is not limited to a belt, and a string, a rope, a wire, or other long objects that do not have extension in the length direction can be used, but internal pressure is applied to the airtight cylinder 5. In order to prevent the bag portion 6 from coming into close contact with the expansion suppressing member 7 due to the internal pressure and to prevent slippage, a wide belt having a large contact area with respect to the bag portion 6 is used as the expansion suppressing member 7. Is preferred.

  In the above example, the airtight cylindrical body 5 is a tubular cloth 8 having a vertical mouth pouch weave structure 12 and a lining 9 is used. Instead of the tubular cloth 8, an elastic warp 10 and It is also possible to use a tubular woven fabric in which both edges of a normal flat fabric woven with weft yarns 11 are joined. In this case, the inner lining 9 may be applied to the inside of the tubular woven fabric, or a fabric obtained by subjecting the fabric to an airtight treatment such as tarpaulin can be formed into a tubular shape.

  In this case, the bag portion 6 can be formed in a part of the woven fabric by a vertical-mouthed woven structure. However, as shown in FIG. It is also possible to form the bag portion 6 between the joint portions.

  In the present invention, the airtight cylinder 5 basically has a structure in which an airtight treatment is applied to a cylindrical woven fabric in which the warp yarn 10 and the weft yarn 11 are woven. It has pressure resistance and has a structure that can be folded flat when not in use, based on the flexibility of the tubular woven fabric.

  Since the warp yarn 10 is used as the warp yarn 10 in the tubular woven fabric, tension is applied to the stretch warp yarn 10 when internal pressure is applied, and the airtight cylinder 5 extends in the length direction. Can do.

  On the other hand, a bag portion 6 is formed in a part of the tubular woven fabric, and the extension suppressing member 7 is inserted into the bag portion 6, so that when an internal pressure is applied to the airtight cylindrical body 5, Since the bag part 6 is crushed and the inner surface of the bag part 6 is brought into close contact with the extension suppressing member 7 inserted therein, the extension of the airtight cylindrical body 5 is suppressed by the extension suppressing member 7.

  Accordingly, as described above, while the airtight cylinder 5 has the extensibility in the length direction, only the portion of the bag portion 6 in the circumferential direction is restrained from being stretched by the stretch restraining member 7. As shown, it is curved in the length direction to form an arch shape.

  Then, by installing a plurality of the arched air columns 2 and extending a sheet on the air column 2, the air column tent 1 supported by the arched air column 2 is installed as shown in FIG. Can do.

  According to the present invention, the expansion suppressing member 7 and the bag portion are simply inserted through the bag portion 6 of the tubular woven cloth, and the pressure of the pressure fluid inserted into the airtight cylindrical body 5 is used. 6 is in close contact with each other, and the elongation suppressing member 7 is held against the airtight cylinder 5 by the frictional force. Therefore, it is not necessary to sew the expansion suppressing member 7 against the tubular woven fabric, and the airtight cylinder It is very easy to attach the extension restraining member 7 to 5.

  Moreover, when inserting the expansion | extension suppression member 7 in the bag part 6, by adjusting the tension | tensile_strength of the expansion | extension suppression member 7 and adjusting the length of the airtight cylinder 5 and the expansion | extension suppression member 7, of the air column 2 It is also possible to control the degree of curvature.

  Further, the air column tent 1 of the present invention easily forms an arch-shaped air column 2 by inserting a pressure fluid such as compressed air into the air column 2 and inflates it, and extends a sheet 3 on the air column 2. By doing so, the air column tent 1 can be easily formed, and when not in use, the air column 2 can be compactly folded by removing the pressure fluid, and can be stored in a small space, and also easily transported. It is.

  The arched air column of the present invention is described as a column of a column tent, but is not limited to this application, and can be used for various applications such as a welcome arch at an event venue.

Perspective view of air column tent Cross section of arched air column Detailed cross section of arched air column Cross section showing another example of arched air column Perspective view of arched air column

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Air column tent 2 Air column 3 Sheet 4 Arch type | formula air column 5 Airtight cylinder 6 Bag part 7 Elongation suppression member 8 Cylindrical cloth 9 Inner lining 10 Stretch warp 11 Weft thread 12 Longitudinal bag woven structure 13 Overlapping part

Claims (10)

A cylindrical woven fabric formed by weaving a stretchable warp yarn (10) extending in the length direction and having a stretchability in the length direction and a weft yarn (11) extending in the circumferential direction is subjected to an airtight treatment to be flexible. An airtight cylindrical body (5) is formed, a bag portion (6) is formed along a length direction of a portion of the cylindrical woven fabric in the circumferential direction, and expansion is suppressed in the bag portion (6). Arched air column characterized by inserting member (7) The arched air column according to claim 1, wherein the tubular woven fabric is a tubular fabric (8) woven with a stretch warp yarn (10) and a weft yarn (11) in a tubular shape. The tubular woven fabric is formed by joining both side edges of a woven fabric made of stretch warp yarns (10) and weft yarns (11) to form a cylindrical shape. Arched air column The arched air column according to claim 1, wherein the airtight cylinder (5) is formed by providing an airtight lining (9) on at least an inner surface of the tubular woven fabric. The airtight cylinder is characterized in that it is subjected to an airtight treatment on a woven fabric made of stretch warp yarns (10) and weft yarns (11), and both side edges are joined to form a cylindrical shape, The arched air column according to claim 1. The said bag part (6) is formed in the part of the circumferential direction of the said cylindrical woven fabric by the vertical-mouth bag woven structure | tissue (12), The one in any one of Claim 1 thru | or 5 characterized by the above-mentioned. Arched air column The cylindrical woven fabric is formed by joining both side edges of a woven fabric made of stretch warp yarns (10) and weft yarns (11), and the both side edges of the woven fabric are overlapped. The arched air column according to claim 1, wherein both side edges of the overlapping portion (13) are joined to form a bag portion (6) between the joined portions. The arch type according to any one of claims 1 to 7, wherein the extension suppressing member (7) is a rope, a string, a wire, or other string-like object having no stretchability in the length direction. Air column The arched air column according to any one of claims 1 to 7, characterized in that the extension suppressing member (7) is a belt having no extensibility in the length direction. A pressure fluid is fed into the arched air column (4) according to any one of claims 1 to 9 and inflated and curved to form a tent framework, and a seat (3) along the framework An air column tent characterized by

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