JP5077957B2 - Air column tent - Google Patents

Description

  The present invention relates to an air column tent having an air column made of a flexible airtight cylinder inflated by air pressure, and more particularly to an air column tent having a partially curved shape. .

  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 to inflate it to form a rod-shaped air column, and this air column is combined to form a framework, 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 fabrics are joined, the behavior of the two woven fabrics is different at the time of pressurization, so that 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, in this case, when an internal pressure is applied to the cylindrical woven fabric, the cylindrical woven fabric is curved in an arc shape, but the shape of the curve cannot be controlled. Although the degree of curvature can be controlled somewhat by adjusting the way the tape is applied, it is necessary to perform precise work and it is impossible to change the shape of the air column later.
Japanese Utility Model Publication No. 6-56395 JP-A-7-71140

  The present invention has been made in view of such circumstances, and can form a curved air column with a simple structure, and can easily form a tent using the air column as a framework. The object is to make it possible to easily change the curved shape of the column.

Thus, the first invention of the present application forms a tubular woven fabric 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 first stretch suppression that suppresses stretch in the length direction along a part of the circumferential direction of the hermetic cylinder by forming a woven fabric in a hermetic manner to form a flexible hermetic cylinder. And a second member for suppressing expansion by fitting a cylindrical member having no stretchability in the length direction to a part of the length direction of the hermetic cylinder. The body is inflated by applying fluid pressure to the body and is curved at a portion where the tubular member is not fitted, and an arched air column is formed, and the sheet is stretched along the air column. A length obtained by dividing the entire width of the sheet into a plurality of widths on the inner surface over the entire width of the sheet A plurality of cylindrical members are arranged in series and fastened, and some of the plurality of cylindrical members are fitted to the airtight cylinder, and the others are fitted to the airtight cylinder. It is characterized by not.
Further, the second invention of the present application is to form a tubular woven fabric 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. And forming a flexible airtight cylinder, and a first extension suppressing means for suppressing the extension in the length direction along a part of the circumferential direction of the airtight cylinder. At the same time, a cylindrical member that does not have stretchability in the longitudinal direction is fitted to a part of the airtight cylindrical body in the lengthwise direction to form a second extension suppressing means, An inner surface of the sheet is formed by forming a arch-shaped air column by inflating by applying a fluid pressure and bending the tubular member at a portion where the tubular member is not fitted, and extending the sheet along the air column. A plurality of short cylindrical members are arranged in series over the entire width of the sheet and fastened. Both of the cylindrical members fixed to the terminal of the sheet are longer than the other cylindrical members and project greatly from the edge of the sheet, and some of the cylindrical members other than the cylindrical member of the terminal An airtight fitting that fits into the airtight cylinder, does not fit the other into the airtight cylinder, fits the tubular member of the terminal into the airtight cylinder, and fits the tubular member of the terminal It is characterized in that the sex tube is a leg portion of an air column.

  As the tubular woven fabric, a tubular fabric in which stretchable warp yarns and weft yarns are woven into a tubular shape can be used. In addition, as the tubular woven fabric, it is also possible to use a tubular woven fabric obtained by joining both side edges of a woven fabric obtained by weaving stretch warp and weft.

  The airtight cylinder preferably has an airtight lining on at least the inner surface of the tubular woven fabric. Further, the airtight cylinder may be formed into a tubular shape by applying an airtight treatment to a woven fabric made of stretch warp yarns and weft yarns, and joining both side edges.

  Moreover, in the present invention, as a part of the warp in the circumferential direction of the tubular woven fabric, a non-stretch warp having no stretch in the length direction is used in place of the stretch warp, so that a stretch warp is used. It is possible to suppress the elongation in the length direction based on the stretchability of the above and to provide the first elongation suppressing means.

  As another means, a flexible tape-like material having no stretchability in the length direction is attached to a part of the airtight cylinder in the circumferential direction along the length direction of the cylindrical woven fabric. Thus, it is possible to suppress the extension in the length direction and use the first extension suppressing means.

  This tape-like material is preferably attached along the inner surface of the tubular woven fabric in the airtight tubular body. Further, the airtight treatment can be performed on a woven fabric made of stretch warp and weft, and the both side edges can be joined via the tape-like material to form the airtight cylinder.

  Further, in the present invention, by taking the first extension suppressing means in a state where the cylindrical woven fabric is partially or wholly extended or loosened, the airtight cylindrical body at the time of pressure fluid feeding is provided. The degree of curvature can be adjusted.

As the tubular member in the present invention, a tubular woven fabric in which warp yarns and weft yarns are woven into a tubular shape can be used. It is also preferable to use a cylindrical member obtained by joining both edges of a flat fabric wound around an airtight cylindrical body with a fastener. It is preferable that the diameter of the cylindrical member is approximately equal to the diameter of the airtight cylinder.

  According to the present invention, when compressed air is press-fitted into the airtight cylinder, the airtight cylinder is inflated by the internal pressure, and the warp yarn of the cylindrical woven fabric constituting the airtight cylinder is made of stretchable warp. The warp yarns extend and the airtight cylinder extends in the length direction thereof, and the airtight cylinder forms a rigid rod-shaped air column.

  However, since the first extension suppressing means is taken in a part of the airtight cylindrical body in the circumferential direction, in the part of the first extension suppressing means, only the other part is extended. The airtight cylinder is curved and the air column is arched.

  And since the 2nd expansion | extension suppression means is taken in the part of the length direction of the airtight cylinder, in the part of the said 2nd expansion | extension suppression means, it extends over the perimeter of an airtight cylinder. In this part, there is no difference in the degree of extension regardless of the presence or absence of the first extension suppressing means in the circumferential direction.

  Accordingly, the airtight cylinder extends linearly in the portion where the second extension suppressing means is provided, and in the portion where the second extension suppression means is not provided, the extension of the airtight cylinder is the circumferential direction as described above. An arbitrary combination of a straight portion and a curved portion by selecting a portion where the second extension suppressing means is provided in the airtight cylinder, because only a part is suppressed by the first extension suppressing means. It is possible to form an air column of the shape.

  Embodiments of the present invention will be described below with reference to the drawings. FIG. 2 shows an example of an air column 2 of an air column tent 1 according to the present invention, and this air column 2 is composed of an airtight cylindrical body 5 obtained by subjecting a tubular woven fabric 4 to an airtight treatment. A tubular member 6 made of a tubular woven fabric is fitted to the outside of the airtight tubular body 5 with a space therebetween.

  FIG. 3 shows an example of the airtight cylinder 5 in the air column 2, wherein (a) is an enlarged perspective view of a part of the airtight cylinder 5, and (b) shows its main part. It is the cross-sectional view expanded further.

  The tubular woven fabric 4 is formed by weaving a stretchable warp yarn 7 extending in the length direction and a weft yarn 8 extending in the circumferential direction of the tubular woven fabric 4 in a tubular shape, and is airtight on the inner surface of the tubular woven fabric 4. A gas-tight lining 9 is formed and an air-tight treatment is performed to form an air-tight cylinder 5.

  And as the elastic warp yarn 7 in the tubular woven fabric 4, a yarn having elasticity in the length direction is used. As a material of the stretchable warp yarn 7, a synthetic fiber crimped yarn, a polyurethane elastic yarn, or the like can be used. Moreover, as the weft 8, normal natural fiber or synthetic fiber can be used, and it is preferable to use the thing which does not have a stretching property.

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

  As a means for hermetically configuring the airtight cylinder 5, it is possible to simply insert an airtight tube into the tubular woven cloth 4, but at least the inner surface of the tubular woven cloth 4 is directly airtight lining 9. Is preferably formed.

  The lining 9 is made of a flexible material such as rubber, soft vinyl chloride resin, polyurethane elastic body, or polyester elastomer. A tube made of these materials is drawn into the tubular woven fabric 4 and inflated by applying internal pressure. It can be formed by adhering to the inner surface of the tubular woven fabric 4. In general, in the field of fire hoses and the like, various methods for lining the inner surface of a jacket made of a tubular woven fabric have been proposed, and these can be appropriately selected and employed.

  In this example, the lining 9 needs to be formed at least on the inner surface of the tubular woven fabric 4, but a similar rubber or soft plastic film may be formed on the outer surface of the tubular woven fabric 4. There is no problem.

  Thus, in the example of FIG. 3, a flexible tape-like material 10 having no stretchability is provided on the inner surface of the tubular woven fabric 4 and extends in the length direction of the tubular woven fabric 4 in a part of the circumferential direction. Is attached to prevent the elongation of the tubular woven fabric 4 in the length direction, and the first elongation suppressing means is provided. A narrow woven fabric is suitable for the tape-like material 10, and the means for attaching can be by means such as sewing and adhesion.

  The tape-like material 10 can be attached to the inside of the lining 9 in the tubular woven fabric 4, but the tape-like material 10 is attached to the inner surface of the tubular woven fabric 4 as shown in FIG. The lining 9 is preferably formed on the inner side.

  As a method of attaching the tape-like material 10 to the inner surface of the tubular woven fabric 4, the tape-like material 10 can be drawn into the tubular woven fabric 4 and adhered or sewn to attach it. The object 10 is attached to the outer surface of the tubular woven cloth 4, and an airtight film is formed on the outer surface of the tubular woven cloth 4, and the inner and outer surfaces are turned upside down by an appropriate method, and the film is lined. 9 and the tape-like material 10 can be positioned on the inner surface of the tubular woven fabric 4.

  In the present invention, the tape-like product 10 can be attached to the outer surface of the tubular woven fabric 4, but when the tensile force is applied to the tubular woven fabric 4 due to internal pressure, the tape-like product 10 is attached to the outer surface. Since the article 10 may be peeled off, the tape-like article 10 is preferably attached to the inner surface of the tubular woven fabric 4.

  Thus, when a pressure fluid such as compressed air is fed into the airtight cylinder 5 and an internal pressure is applied, the airtight cylinder 5 expands in a cylindrical shape and the elastic warp 7 of the tubular woven fabric 4. Since it has elasticity, it extends in the length direction by internal pressure.

  However, since a part of the airtight cylinder 5 in the circumferential direction is restrained from being stretched by the tape-like object 10, the part to which the tape-like object 10 is attached cannot be stretched, and the other part. Since only the portion extends, as shown by a chain line in FIG. 3A, the portion to which the tape-like material 10 is attached is curved so as to be inside.

  And in this invention, the 2nd expansion | extension suppression means is taken in a part of the length direction of this airtight cylinder 5. In the example of FIG. 2, a cylindrical member 6 is fitted to the airtight cylindrical body 5, and the cylindrical member 6 serves as a second extension suppressing unit.

  The tubular member 6 is made of a tubular woven fabric having the same diameter as the tubular woven fabric 4. The warp yarn of the tubular woven fabric uses a normal yarn that does not have stretchability in the length direction, and the tubular member 6 itself does not have stretchability in the length direction.

  The airtight cylinder 5 in the air column 2 has elasticity in the length direction by the elastic warp thread 7 as described above, and a part of the circumferential direction is extended in the length direction by the first extension suppressing means. Since the expansion is suppressed, the gastight tube 5 is bent when an internal pressure is applied.

  However, since the tubular member 6 that does not have stretchability in the length direction is fitted to a part of the length direction of the hermetic cylinder 5, the portion that is fitted with the tubular member 6 is airtight. When the internal pressure acts on the cylindrical body 5, the airtight cylindrical body 5 comes into close contact with the cylindrical member 6, and the cylindrical woven fabric 4 extends in the longitudinal direction over the entire circumference by the cylindrical member 6. The airtight cylinder 5 does not extend and does not curve.

  Therefore, in this air column 2, the portion where the cylindrical member 6 is fitted to the airtight cylinder 5 swells in a linearly extended state when pressurized, and in the portion where the cylindrical member 6 is not fitted. It will be bent by the action of the tape-like object 10.

  In the example of FIG. 2, the tubular member 6 is fitted in a total of four places, ie, the two ends of the airtight cylinder 5 and the central portion, and the portion between which the tubular member 6 is fitted. A portion where the tubular member 6 is not fitted is formed, and the airtight tubular body 5 is exposed.

  Therefore, when the internal pressure acts on the air column 2 and the airtight cylinder 5 expands, the portion where the tubular member 6 is fitted extends linearly, and the portion where the tubular member 6 is not fitted is connected to the airtight cylinder 5. Since it curves, a substantially house-shaped arched air column 2 can be formed as shown in FIG.

  Moreover, FIG. 5 shows another example, and the cylindrical member 6 is fitted at a total of three locations, that is, both ends and the central portion of the airtight cylinder 5. In this example, both end portions and the central portion where the cylindrical member 6 is fitted are linear, and the portion between them is curved, so that the arch having a substantially rectangular shape with a horizontal upper portion as shown in FIG. 5B. A shaped air column 2 is formed.

  The location and the number of fitting the cylindrical member 6 to the airtight cylindrical body 5 in the present invention are not limited to the above example, and are arbitrary. That is, the air column 2 on the arch of various shapes can be formed by arbitrarily setting the size and number of the cylindrical members 6 and the fitting locations, and depending on the shape of the arch to be formed, Is set.

  And the air column tent 1 according to the shape of the air column 2 can be formed by extending the sheet | seat 3 along the arch-shaped air column 2 formed in this way. In this case, the sheet 3 can cover the entire air column 2 as shown in FIG. 1, but can be spread only on the upper part or only on the peripheral surface of the air column 2 as necessary.

  The first extension suppressing means in the present invention suppresses a partial extension in the circumferential direction of the airtight cylinder 5, and the second extension suppression means is one of the lengthwise directions of the airtight cylinder 5. Although it suppresses the expansion of the entire circumferential direction in the portion, the specific structure is not limited to the above-described structure, and various modifications are possible.

  FIG. 6 shows another example in which the first extension suppressing means is provided in the airtight cylinder 5 according to the present invention, and the both side edges of the woven fabric 11 are joined via the tape-like material 10 to form a cylindrical woven fabric. A cloth 4 is formed, and the tubular woven cloth 4 is subjected to an airtight treatment to form an airtight cylinder 5.

  As shown in FIG. 6B, the woven fabric 11 is formed by weaving stretchable warp yarns 7 and weft yarns 8, and the materials of the stretchable warp yarns 7 and the weft yarns 8 are the same as those described in the previous example. Can be used.

  The woven fabric 11 is subjected to an airtight treatment 9 ′ by a method such as rubber friction processing. The airtight treatment may be performed on the tubular woven fabric 4 joined on both sides of the woven fabric 11 via the tape-like material 10 to form the airtight cylindrical body 5. Processing may be performed and the both side edges may be joined.

  Then, both side edges of the woven fabric 11 are overlapped with the tape-like material 10 interposed therebetween, and these are stitched together or bonded together. It is possible to join both side edges of the woven fabric 11 and attach the tape-like material 10 separately thereto. However, by joining both side edges of the woven fabric 11 via the tape-like material 10, Since joining of both side edges and attachment of the tape-like object 10 can be performed in one step, it is preferable.

  Further, the joining position of the woven fabric 11 and the attaching position of the tape-like product 10 do not necessarily coincide with each other, but the joining portion of the woven fabric 11 is inferior in strength, so that it is reinforced with the tape-like product 10. In addition, since the joint portion of the woven fabric 11 is difficult to expand and contract by sewing or adhesion, the joint position and the attachment position of the tape-like object 10 as the extension restraining means are made to coincide with each other so that it can be smoothly applied. Bend.

  FIG. 6 (c) shows another example of the airtight treatment, in which both side edges of the woven fabric 11 are joined through the tape-like material 10 to form a cylindrical shape, and then a lining 9 is formed on the inner surface thereof. Then, it is airtightly treated. Formation of the lining 9 on the inner surface of the tubular woven fabric can be performed in the same manner as described in FIG.

  FIG. 7 shows another structure when both side edges of the woven fabric 11 are joined via the tape-like material 10, with the both side edges of the woven fabric 11 protruding outwardly, with the tape between them. The product is joined with the product 10 in between. The operation of stitching or adhering both side edges of the woven fabric 11 with the tape-like material 10 interposed therebetween can be easily performed.

  In the structure in which the tape-like material 10 is attached to the tubular woven fabric 4 described above, the tape-like material 10 may be attached with the tubular woven fabric 4 contracted in the length direction. The degree of curvature of the air column 2 can be adjusted by attaching the tape-like material 10 in a state where the tubular woven fabric 4 is slightly extended in the length direction.

  That is, in the air column tent of the air column tent of the present invention, when the internal pressure is applied, the tubular woven fabric 4 is tensioned in the length direction and stretched by the stretchability of the tubular woven fabric 4, and the circumferential direction thereof In part, the elongation is suppressed by the tape-like object 10, so that the tubular woven fabric 4 is curved so that the position where the tape-like object 10 is attached is inside.

  Since the degree of the curvature is determined by the difference in the elongation rate between the inside and the outside of the tubular woven fabric 4, the tape-like material 10 is attached with the tubular woven fabric 4 slightly stretched as described above. As a result, the expansion rate of the outer side with respect to the inner side of the curve becomes relatively small, the degree of bending becomes more gradual, and the degree of bending is partially adjusted by adjusting the rate of extension of the tubular woven fabric 4 It can be done.

  Conversely, when attaching the tape-like material 10 to the tubular woven fabric 4, by attaching the tubular woven fabric 4 with some slack, the degree of curvature of the air column 2 is made more abrupt. It is also possible to do.

  FIG. 8 shows an example of the tubular woven fabric 4 in the present invention in which a first stretching restraining means for restraining stretching in a part of the tubular woven fabric 4 is provided. The tubular woven fabric 4 may be woven in a tubular shape, or may be a tubular shape formed by joining both side edges of a normal woven fabric 11.

  In FIG. 8, the tubular woven fabric 4 is formed by weaving warp yarns and weft yarns. As the warp yarn, the elastic warp yarn 7 occupying most of the tubular woven fabric 4 and the circumferential direction of the tubular woven fabric 4. The warp yarns 12 and 12 and the weft yarns 8 form a tubular woven fabric 4.

  That is, in this example, the tubular woven fabric 4 is stretchable by the stretchable warp yarns 7 that occupy most of the warp yarns constituting the tubular woven fabric 4, and in a part of the circumferential direction thereof, the long length is long. By using the non-stretchable warp yarn 12 as the warp yarn extending in the vertical direction, elongation at the position of the non-stretch warp yarn 12 is suppressed. The tubular woven fabric 4 is subjected to an airtight treatment to form an airtight tubular body 5.

  In addition, the second elongation suppressing means in the present invention is not limited to the above-described structure, and for example, the one in which the first elongation suppressing means is provided on the tubular woven fabric 4 using the elastic warp yarn 7, A cylindrical woven fabric in which the warp yarns are woven with non-elastic warp yarns 12 can be alternately connected every predetermined length, and the cylindrical woven fabric 4 using the elastic warp yarns 7 can be connected, By taking the same restraining means as the first stretching restraining means at a plurality of locations in the circumferential direction, as a result, the stretch was restrained over the entire circumference, and the curving in a specific direction was prevented. A structure is also possible.

  However, the air column tent 1 of the present invention can be easily manufactured, and the airtight cylinder 5 is bent into a stable structure and is reliably prevented from being bent at the place where the second extension suppressing means is provided. For this purpose, it is most preferable to fit the tubular member 6 to the airtight cylinder 5 as described above. Moreover, if it is this structure, it can be set as the air column tent 1 of arbitrary shapes in the installation site by changing the position and number in which the cylindrical member 6 is fitted.

  As a material of the cylindrical member 6, a metal or plastic cylinder can be used, but from the viewpoint of flexibility, an airtight cylinder 5 in which warp yarns and weft yarns having no elasticity are woven into a cylindrical shape, It is preferable to use a cylindrical woven fabric having approximately the same diameter.

  The tubular member 6 can also be fitted by inserting the airtight cylinder 5 through a tubular fabric, but a metal fitting for inserting pressure fluid is attached to the end of the airtight cylinder 5. In many cases, it is difficult to insert the tubular member 6 into the tubular member 6, and it is more preferable that both edges of the flat woven fabric are joined with a fastener to form a tubular shape.

  FIG. 9 shows an example in which fasteners 14 are fastened to both edges of a flat fabric 13 and the fabrics 13 are wound around an airtight cylinder 5 to join the fasteners 14 on both edges. The cylindrical member 6 is formed.

  The tubular member 6 is individually attached to the airtight cylinder 5 to form an arched air column 2 having a desired shape, and then the sheet 3 is extended to the air column 2 to expand the air column tent. However, as shown in FIG. 10, a cylindrical member 6 is integrally attached to a predetermined position of the sheet 3 forming the air column tent 1 and the cylindrical member 6 is attached to the airtight cylinder 5. It is also possible to fit on the outer side. Also in this example, it is preferable that each tubular member 6 is formed into a tubular shape by the fastener 14 as described above.

  In this state, when a pressure fluid is inserted into the airtight cylinder 5 to apply an internal pressure, the airtight cylinder 5 is curved at a position between the cylindrical members 6 to form an approximately square arched air column 2. Therefore, by standing the air column 2 on the ground as it is, it is possible to form the air column tent 1 in which the sheet 3 is covered outside the arched air column 2 as shown in FIG.

  In this case, the tubular member 6 can be fixed to the outer surface of the seat 3 and the seat 3 can be attached to the inner side of the arched air column 2. In addition, since the tent is crushed when the attachment between the air column 2 and the seat 3 falls off, the tubular member 6 is attached to the inner surface of the seat 3 and the seat 3 is placed outside the arch-shaped air column 2. It is preferable to be in a covered state.

  FIG. 12 shows a modification of the above example, and the sheet 3 has a plurality of short cylindrical members 6 having a length obtained by dividing the entire width of the bent portion 3 into a plurality of parts over the entire width. It is continuously arranged and fastened.

  In this example, the airtight cylinder 5 is inserted into a part of the cylindrical member 6 fixed to the sheet 3 and is not inserted into the other cylindrical members 6. The position of the curve 5 can be selected, and the shape of the air column tent 1 can be selected.

  That is, FIG. 13 shows an example. In FIG. 13A, the tubular member 6 of the woven fabric 11 is fixed over the entire width of the sheet 3, and two continuous ends of the two ends are provided. The state is shown in which the airtight cylinder 5 is inserted through three cylindrical members 6a that are continuous at the center, and the cylindrical member 6b between them is not inserted. In addition, as shown in FIG.13 (c), the cylindrical member 6b in which the airtight cylinder 5 is not penetrated was pinched | interposed between the airtight cylinder 5 and the sheet | seat 3 in the state crushed flatly. It is in a state.

  Thus, when fluid pressure is applied to the airtight cylinder 5 in this state, the airtight cylinder 5 extends linearly in the portion inserted through the cylindrical member 6a and is inserted into the cylindrical member 6b. The airtight cylindrical body 5 is curved in a portion where there is no gap to form a substantially quadrangular arched air column 2 and the air column 2 is erected on the ground, so that the cross section is substantially as shown in FIG. A square air column tent 1 can be formed.

  FIG. 14 shows another example using the sheet 3 to which the same cylindrical member 6 as that in FIG. 13 is used, and the airtight cylindrical body 5 is inserted into two consecutive cylindrical members 6a. However, the airtight cylinder 5 is not inserted into each of the cylindrical members 6b therebetween, and the fluid pressure is applied to the airtight cylinder 5 so as to stand up, so that FIG. As shown in FIG. 1, an air column tent 1 having a substantially house-shaped cross section can be formed.

  In these examples, if the ends of the plurality of cylindrical members 6 fixed to the sheet 3 are simply in contact with the ends of the adjacent cylindrical members 6, the continuous cylindrical members 6 are airtight. When fluid pressure is applied through the tubular body 5, the airtight tubular body 5 may be slightly curved at the portion straddling the tubular member 6, and may not be linear.

  Therefore, by slightly inserting one terminal of the adjacent cylindrical member 6 into the other, the terminals are slightly overlapped to prevent the airtight cylinder 5 from being exposed at the boundary of the cylindrical member 6, Unnecessary bending can be prevented.

  FIG. 15 shows these modified examples, and the cylindrical member 6 c fixed to both ends of the sheet 3 is longer than the other cylindrical members 6 and protrudes greatly from the edge of the sheet 3. The tubular member 6c is always fitted to the airtight cylinder 5 to form the leg portion of the air column 2, and the air sheet 2 in which the sheet 3 is expanded only on the upper portion of the air column 2 as shown in FIG. A column tent 1 is formed.

  In this example, the other cylindrical members 6 other than the cylindrical member 6c are the same as those in FIG. 12, and a part 6a thereof is fitted into the airtight cylinder 5 and the other part 6b is fitted. The shape of the upper part of the air column tent 1 can be set without any problems.

  Thus, according to the present invention, the airtight cylinder 5 forming the air column 2 basically has a structure in which the tubular woven fabric 4 in which the warp yarn and the weft yarn are woven is subjected to an airtight treatment. Therefore, the tubular woven cloth 4 has a pressure resistance, and has a structure that can be folded flat when not in use based on the flexibility of the tubular woven cloth 4.

  Since the elastic warp 7 is used as the warp in the tubular woven fabric 4, when the internal pressure is applied, tension is applied to the elastic warp 7 and the tubular woven fabric 4 extends in the length direction. Can do.

  However, since the tubular woven fabric 4 is partly restrained from being stretched by the first stretch restraining means in a part of the circumferential direction, even when the internal pressure is applied and tension is applied, the stretched part is restrained. Does not stretch.

  Therefore, when an internal pressure is applied and tension is applied in the length direction of the tubular woven fabric 4, the portion where the extension is suppressed by the first extension suppressing means does not extend, and the other portions are extended. A difference in the amount of elongation occurs between the two, and the tubular woven fabric 4 is curved so that the first elongation suppressing means is on the inside, forming an arch-shaped tubular body.

  And the 2nd expansion | extension suppression means is provided in the length direction partially with respect to the airtight cylinder 5, and the airtight cylinder 5 is in the perimeter in the part of the said 2nd expansion | extension suppression means. Since the expansion is suppressed, there is no difference in the amount of expansion in the circumferential direction even when an internal pressure is applied to the airtight cylindrical body 5, and there is no bending.

  Therefore, according to the present invention, by appropriately setting the position where the second extension suppressing means is provided in the length direction of the airtight cylinder 5, the arched air column 2 having a combination of the straight portion and the curved portion. The shape of the air column tent 1 can be arbitrarily set, and can be changed as necessary.

  A blade is used as a structure of a reinforcing body in a hose and the like, and the blade has stretchability in the length direction. Therefore, the tape-like material 8 is attached to a part of the circumferential direction as an airtight cylinder 5. If the extension is suppressed by means such as, it is considered that a curved shape can be exhibited at the time of pressurization.

  However, in this structure, the blade is basically bendable regardless of the presence or absence of internal pressure, so unlike a cylindrical woven fabric composed of warp and weft, it does not exhibit a rigid rod shape when pressurized, The load cannot be supported.

  Therefore, even if a tape-like material is attached and curved when pressurized as described above, the shape cannot be maintained unless a special support means is provided, and the air column 2 of the air column tent 1 can be obtained. Can not.

Perspective view of air column tent The center longitudinal cross-sectional view which shows an example of the air column which comprises the air column tent of this invention An example of the airtight cylinder in this invention is shown, Comprising: (a) is the one part perspective view, (b) is an expanded cross-sectional view of the principal part. Front view with internal pressure applied to the air column in FIG. The other example of the air column which comprises the air column tent of this invention is shown, Comprising: (a) is a center longitudinal cross-sectional view, (b) is the front view of the state which applied the internal pressure to the air column The other example of the airtight cylinder in this invention is shown, Comprising: (a) is the one part perspective view, (b) is the expanded sectional view, (c) is the expanded sectional view of another example. is there. The perspective view which shows the further another example of the airtight cylinder in this invention The expansion perspective view of the principal part of the cylindrical woven fabric in the further another example of the airtight cylinder in this invention The perspective view which shows an example of the state which fitted the cylindrical member to the airtight cylinder in this invention The top view which shows an example of the state which fastened the cylindrical member to the sheet | seat in the air column tent of this invention Front view of an air column tent formed according to the example of FIG. The top view of a part of sheet | seat which fixed the cylindrical member continuously in this invention FIG. 13 shows an example of an air column tent using the example of FIG. 12, wherein (a) is a plan view showing a state in which an airtight cylindrical body is inserted into a cylindrical member, and (b) is a BB cross-sectional view; (C) is CC sectional drawing, (d) is a front view of the formed air column tent. 12 shows another example of an air column tent using the example of FIG. 12, wherein (a) is a plan view showing a state in which an airtight cylindrical body is inserted into a cylindrical member, and (b) is a formed air It is a front view of a pillar tent. FIGS. 12A and 12B show an example in which FIG. 12 is modified, in which FIG. 12A is a plan view showing a state where an airtight cylindrical body is inserted into a cylindrical member, and FIG. 13B is a front view of the formed air column tent.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Air column tent 2 Air column 3 Sheet 4 Cylindrical woven fabric 5 Airtight cylinder 6 Cylindrical member 7 Stretch warp 8 Weft 9 Liner 10 Tape-like material 11 Woven fabric 12 Non-stretch warp 13 Textile 14 Fastener

Claims (14)

A tubular woven fabric (4) is formed by weaving a stretchable warp yarn (7) extending in the length direction and having a stretchability in the length direction and a weft yarn (8) extending in the circumferential direction. The cloth (4) is hermetically configured to form a flexible airtight cylinder (5), and a longitudinal extension along the length direction of a part of the airtight cylinder (5) in the circumferential direction. A cylindrical member that takes the first extension suppressing means (10, 12) that suppresses squeezing and has a lengthwise stretchability on a part of the airtight cylindrical body (5) in the lengthwise direction. (6) is fitted as a second extension suppressing means, and fluid pressure is applied to the airtight cylindrical body (5) to inflate it, and the cylindrical member (6) is curved at a portion where it is not fitted. in what form the arched air column (2), and stretched sheet (3) along the air column (2), the said sheet (3 A plurality of cylindrical members (6) having a length obtained by dividing the entire width of the sheet (3) into a plurality of widths are arranged in series on the inner surface of the sheet (3) and fixed. A part (6a) of the plurality of tubular members (6) is fitted to the airtight cylinder (5), and the other (6b) is not fitted to the airtight cylinder (5). An air column tent characterized by A tubular woven fabric (4) is formed by weaving a stretchable warp yarn (7) extending in the length direction and having a stretchability in the length direction and a weft yarn (8) extending in the circumferential direction. The cloth (4) is hermetically configured to form a flexible airtight cylinder (5), and a longitudinal extension along the length direction of a part of the airtight cylinder (5) in the circumferential direction. A cylindrical member that takes the first extension suppressing means (10, 12) that suppresses squeezing and has a lengthwise stretchability on a part of the airtight cylindrical body (5) in the lengthwise direction. (6) is fitted as a second extension suppressing means, and fluid pressure is applied to the airtight cylindrical body (5) to inflate it, and the cylindrical member (6) is curved at a portion where it is not fitted. The arch-shaped air column (2) is formed by the above and the sheet (3) is stretched along the air column (2). A plurality of short cylindrical members (6) arranged in series on the inner side surface of the sheet (3) are fixed in series, and are fixed to the end of the sheet (3). (6c) is longer than the other cylindrical member (6) and protrudes greatly from the edge of the sheet (3), and is a part of the cylindrical member (6) other than the cylindrical member (6c) of the terminal (6a) is fitted to the airtight cylinder (5), the other (6b) is not fitted to the airtight cylinder (5), and the tubular member (6c) of the terminal is fitted to the airtight cylinder. An air column tent, characterized in that the airtight cylinder (5) fitted to (5) and fitted with the tubular member (6c) of the terminal is used as a leg of the air column (2).
The air column tent according to claim 1 or 2 , characterized in that the tubular woven fabric (4) is a tubular fabric obtained by weaving elastic warp yarns (7) and weft yarns (8) into a tubular shape. The tubular woven fabric (4) is characterized in that both sides of the woven fabric (11) woven with elastic warp yarns (7) and weft yarns (8) are joined into a tubular shape, The air column tent according to claim 1 or 2. The air-tight cylinder (5) according to claim 1 or 2 , wherein the air-tight lining (9) is applied to at least the inner surface of the tubular woven fabric (4). Pillar tent The airtight cylindrical body (5) is formed by subjecting a woven fabric (11) woven with stretchable warp yarns (7) and weft yarns (8) to airtightness, and joining both side edges to form a cylindrical shape. The air column tent according to claim 1 or 2 , wherein By using a non-stretchable warp thread (12) having no stretchability in the length direction instead of the stretchable warp thread (7) as a part of the warp thread in the circumferential direction of the tubular woven fabric (4), The air column tent according to claim 1 or 2 , characterized in that the first stretching restraining means is obtained by restraining stretching in the length direction based on the stretchability of the stretchable warp yarn (7). A flexible tape-like material (10) that does not have stretchability in the length direction along the length direction of the tubular woven fabric (4) is formed on a part of the airtight tube body (5) in the circumferential direction. The air column tent according to claim 1 or 2 , wherein by attaching, the extension in the length direction is suppressed to be the first extension suppressing means. The air column tent according to claim 8 , wherein the tape-like object (10) is attached along the inner surface of the tubular woven fabric (4) in the airtight cylinder (5). An airtight treatment is applied to a woven fabric (11) woven with elastic warp yarns (7) and weft yarns (8), and both side edges thereof are joined via the tape-like material (10) to form the airtight cylinder (5 The air column tent according to claim 8 , wherein By taking the first extension restraining means in a state where the tubular woven fabric (4) is partially or wholly extended or loosened, the airtight cylinder (5) at the time of pressure fluid feeding is provided. The air column tent according to any one of claims 1 to 10 , wherein the degree of curvature is adjusted. The air column tent according to any one of claims 1 to 11 , wherein the tubular member (6) is a tubular woven fabric in which warp yarns and weft yarns are woven into a tubular shape. The said cylindrical member (6) joins the both edges of the flat fabric (13) wound around the airtight cylinder (5) with the fastener (14), and was made into the cylinder shape, It is characterized by the above-mentioned. The air column tent according to any one of claims 1 to 11. Diameter of the tubular member (6), characterized in that ho Isuzu equal to the diameter of the airtight cylindrical body (5), the air column tent according to claims 1 to 13

Images