JP3348950B2 - Sheet for encapsulated structural material and method of manufacturing the same - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an enclosed structural sheet and a method for manufacturing the same, and more particularly, to a method for enclosing a fluid (for example, air) or various feelers to convert a soft sheet into a rigid building or a structure. New materials that can be used as structural materials for structures and methods of manufacturing them, and frameless tent materials that can be used as pavilions, circus tents, simple houses, etc., or outdoor or indoor partitions It can be used as material and panel material.

[0002]

2. Description of the Related Art Pavilion, circus tent, and simple house are required to be easy and quick to assemble and to be inexpensive to install, and it is not necessary to disassemble and carry. It is also necessary not to damage the site.

Conventionally, as a simple building used for such a purpose, a so-called prefabricated temporary building type and a tent type in which a tent such as cloth or sheet is supported by a frame are generally used. It is widely used as a material for circus tents and temporary houses for site offices in building construction, road construction and railway construction.

However, although the structure of the former prefabricated temporary building is simplified, it is not possible to make each part too small and small in view of strength assurance. If it is time-consuming, and if it is dismantled and moved, there is a problem that a large-scale transportation method is required because there are long objects such as columns and beams.

On the other hand, the latter temporary building of the tent type can carry tent materials such as cloths and sheets in a thin and small fold, which is advantageous in comparison with the prefabricated type. However, there is a problem that a frame material such as a pole or a beam is indispensable for giving a certain building shape to the building, and such a frame material is still heavy and large, and also requires a high degree of skill in assembly.

In view of such inconvenience, recently, proposals have been made to create a sheet-shaped building which expands in a house shape by filling and enclosing a fluid (Japanese Utility Model Publication No. 54-43).
No. 27). However, even in the field of furniture, there have been proposals in the field of furniture in which a rubber tube is inflated like a balloon to make a reception chair or a bed, and in the field of waterborne equipment, a balloon type such as a lifeboat has been proposed. However, in the field of furniture and the field of waterware, including the house type, large balloon structures were almost unprecedented. This is because a sheet that can withstand an air pressure enough to hold the entire structure when the size is increased cannot be obtained easily and inexpensively.

[0007]

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems in materials for constructing temporary buildings and simple structures, and has been developed in consideration of strong internal pressure. It is an object of the present invention to provide a tough and lightweight encapsulation-type structural sheet that can sufficiently withstand and build a large frameless temporary building.

Another technical object of the present invention is to provide a warp,
It is an object of the present invention to provide a material for a temporary building or a temporary construction having a structure suitable for mass production using a multi-layer woven material having a tubular portion woven by appropriately using physical properties of a weft and a yarn used as a connecting yarn.

Still another object of the present invention is to provide a new method capable of efficiently and inexpensively producing the above-mentioned encapsulation type structural sheet.

[0010]

The means adopted by the present inventor to solve the above technical problem will be described as follows.

That is, the present invention uses a predetermined heat-shrinkable yarn.
2 that is woven and heat treated to make the tissue tighter
The point that the encapsulation type structural sheet is constructed by combining a multi-woven structure means for stacking a plurality of ground structures and joining them with a plurality of band-shaped bonded structures and a resin processing means for forming a resin layer on the surface of the ground structure. There is a gist.

The sheet of the present invention is soft enough to be normally folded, but when fluid (eg, air) or the like is sealed between the band-like joint tissues, the sheet expands and becomes rigid due to internal pressure to form a three-dimensional structure. Demonstrate. In addition, since the fiber expands in the direction in which the fiber is expanded, the fiber is very strong, and thus can be used as a structural material for constructing a building or the like.

Further, if the heat-shrinkable ground structure is heat-set to make it tighter, the sheet of the present invention is crushed, which is advantageous for fixing the resin layer, and in addition to strong fluid pressure. There is also an effect that can prevent fluid leakage.

In addition, the sheet of the present invention exhibits form stability not only by injecting air into the inside but also by filling the inside with powder such as sand, for example. For example, such a method may be adopted for an indoor partition or the like.

[0015]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to embodiments.

The following three-dimensional fabric is woven using a heavy cloth loom. The weaving of this three-dimensional woven fabric is such that, while weaving two plain weave ground textures A, A on top and bottom, weaving them together at predetermined intervals, band-shaped bonding textures B, B,... And do it. At this time, the ground organization A
As A, weaving is performed using a 1000-denier high-strength polyester fiber yarn at a warp density of 18 yarns / cm and a weft yarn density of 19 yarns / cm. In addition, 1500 denier polyaramid fiber yarn is used for the connecting yarn. The distance between the two ground structures A and A should be about 1 cm.
And three rows of band-shaped joint structures are arranged at equal intervals so that four tubes are formed when the inside of the sheet is filled later (see FIGS. 1 and 3).

The three-dimensional woven fabric is heat-treated at 200 ° C. by a heat setter to shrink the polyester fiber yarns of the ground structure A, A, and to make the ground structure tight. In the ground structure A ', A' having a tighter structure, the eyes of the fiber gap are crushed. The polyester fiber yarn used for the ground structure has heat shrinkage, but the polyaramid fiber yarn used for the linking yarn does not have heat shrinkage. As a result, the heat treatment shrunk the woven fabric by about 15% in the warp direction and about 11% in the weft direction (see FIG. 2).

In order to examine the performance of the heat-shrinked three-dimensional fabric, only one ground structure was taken out and tested.
It was as follows.

Tensile strength test Warp direction: 124.3 kg / cm, weft direction: 128.3 kg / cm (after heat shrinkage) Air permeability test (using Fazir-type tester) 3.0 cm ³ / cm ² sec (after heat shrinkage) In the air permeability test of the ground tissue before heat shrinkage treatment, 21.3
cm ³ / cm ² sec)

The ground structure of such a three-dimensional fabric is coated with a vinyl chloride resin. This coating is performed on both sides of the three-dimensional fabric. That is, coating is performed on the front side of the three-dimensional fabric of each of the two ground structures. In this embodiment, since the ground structure is tight, the vinyl chloride resin does not inadvertently penetrate to the back side from the ground structure during coating. Next, a fluororesin film having high strength and excellent weather resistance is laminated on the coated vinyl chloride resin.

The sheet thus obtained is cut into a suitable length, the openings at both ends in the longitudinal direction are sealed, and then an air inlet / outlet equipped with a check valve that can be manually released is attached. . When air is injected into this, the band-shaped joint structure does not expand and the other ground structure expands, stabilizing it into a shape like a raft with four cylinders, as a structural material for temporary buildings. Can be used.

For example, a large number of sheets each having a length of about 50 m and having the above-described opening seal and air inlet / outlet provided, are arranged on the ground, and air is press-fitted into each of the sheets so as to be in a predetermined direction. Is obtained, a dome-shaped temporary building 1 is obtained (see FIG. 4). It is to be noted that hook-and-loop fasteners are provided on both edges of each of the structural members 11 to seal the gap between the structural members (see FIG. 5). In this dome-shaped building, it is not necessary to build a column or the like inside, so that only the sheets need to be transported for construction. Also, when demolishing,
It is convenient because you only need to operate the check valve to release air, fold the seat and carry it away. In addition, in the case of such a dome construction, the thickness of the two ground texture yarns is changed so that each structural material is naturally curved when air is injected.
The heat shrinkage may be changed. Furthermore, if the air to be enclosed is a light gas such as helium,
The buoyancy reduces the load on the lower part of the dome, which is convenient.

Further, after the sheet is cut, only one of the openings may be closed and the other side may be left open, and a filler such as sand may be packed from this opening to be used after shaping. When sand is packed as a feeler, the structural material becomes self-supporting under the weight of the sand. The structural material filled with the feeler may be used for a small material that does not require a small amount of strength, such as a display panel and a partition wall 2, rather than a building (see FIG. 6).

It should be noted that, as a precautionary note, in addition to polyester fiber yarns, polyamide-based and polypropylene-based yarns can be used as heat-shrinkable fibers in addition to polyester fiber yarns.

Further, when a predetermined print is made on the multiplex fabric and then coated with a transparent resin, the print appears on the structural material. While such prints are useful for building makeup (see FIG. 6), the prints may be applied on a laminated film.

Further, when the shape of the band-like joint tissue is changed,
Structural materials other than cylindrical shapes are also possible.

[0027]

As described in the above embodiments, the structural material sheet of the present invention is woven using heat-shrinkable yarn.
The base material is a woven fabric that uses the physical properties of fiber yarns and linking yarns that are heat-treated and form a ground structure that has a tighter structure. It is suitable for building large frameless temporary buildings.

Further, in the present invention, since a multi-layer woven fabric obtained by weaving by using the physical properties of the yarns used as the warp, the weft, and the connecting yarn skillfully is used as a material, it is suitable for mass production, Materials for construction can be provided at low cost.

As described above, according to the present invention, it is possible to solve not only the problems in the conventional temporary buildings and temporary constructions and the building materials for outdoor and indoor use, but also the provided product has a very simple and efficient structure. It can be said that the industrial use value of the present invention is extremely high, such as mass production.

[Brief description of the drawings]

FIG. 1 is an enlarged perspective explanatory view showing a weaving structure of a three-dimensional fabric used in an example of the present invention.

FIG. 2 is an enlarged perspective explanatory view showing a woven structure of the three-dimensional woven fabric used in this example after heat shrinkage.

FIG. 3 is a cross-sectional view of the present embodiment.

FIG. 4 is a perspective view of a dome constructed using the sheet of the present invention.

FIG. 5 is a partial cross-sectional view of a dome constructed using the sheet of the present invention.

FIG. 6 is an explanatory view of a decorative partition wall constructed using the sheet of the present invention.

[Explanation of symbols]

 A ground structure A 'ground structure shrunk by heat B banded joint structure

Claims (3)

(57) [Claims] 1. Woven using a predetermined heat-shrinkable yarn,
And two ground tissues that have been heat-treated and have been compacted ,
An encapsulation-type structural material sheet, comprising: a plurality of band-shaped joining structures in which the ground structures are overlapped and joined by a connecting thread; and a resin layer formed on the surface of the ground structure. Wherein the resin layer is sheet-filled structural member according to claim 1, characterized in that it is constituted by a predetermined resin film from the top of the vinyl chloride resin coating is affixed. 3. A region where only a double ground structure is formed using a heat-shrinkable yarn, and a band-shaped joint structure where both ground structures are integrated with a connecting yarn together with a double ground structure using a heat-shrinkable yarn. both an area that, while repeating alternately over the entire width of the woven fabric subjected to weaving, the resulting woven fabric is subjected to heat treatment ground structure organized closer, thus organized compacted the ground structure of the front and back of the fabric And forming a resin layer by laminating a predetermined resin film after a required resin coating.