JPH10317272A - Plate for press-charging liquid therein and its production - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a plate for press-charging a fluid therein, improved in shape retainability, having a strength capable of resisting to the pressure of the fluid, and thereby capable of surely forming a necked portion. SOLUTION: The peripheral edges of a pair of sheets 13a, 13b are adhered to each other to form the surface layer sheets 12 of a plate for press-charging a fluid therein. A three-dimensional wove fabric 14 comprising cloths 15, 16 and non-elastic tying fibers 17 is disposed in the surface layer sheet 12. The lateral center of the plate for press-charging the fluid therein is saw up with a sewing yarn 18. A pair of seal belts 19a, 19b are tightly fused to the surfaces of the sheets 13a, 13b of the surface layer sheet 18 along the saw yarn 18 so as to nip the surface layer sheet 12. Air is press-charged into the plate 11 to inflate the plate 11, thus continuously forming a necked portion 20 along the longitudinal direction of the plate.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fluid press-fit plate for accommodating a pressurized fluid such as air or water, and a method of manufacturing the same, and more particularly to a plate having a constricted portion on its surface.

[0002]

2. Description of the Related Art Conventionally, there has been known a fluid press-fit plate in which a rubber sheet, a rubberized cloth, or a surface layer sheet of a synthetic resin is processed into an airtight bag having a desired shape and a fluid such as air or liquid is sealed therein. And is used for various purposes. When a fluid as a fluid is press-fitted into the surface sheet, a constricted portion is formed on the surface of the fluid press-fit plate as the fluid press-fit plate expands. This constricted portion was formed by welding a part of the facing surface sheet.

[0003]

However, in the conventional fluid press-fitting plate, the strength is insufficient because the facing surface sheets are simply welded to form the constricted portion. Therefore, the welded portion is easily peeled off by the air pressure, and when the fluid press-fit plate is expanded, the constricted portion may not be formed.

Further, when a stress is locally applied to the fluid press-in plate, the stressed portion is dented, the fluid in the dented portion moves, and the other portion expands. Therefore, when a conventional fluid pressure plate is locally stressed, it is entirely deformed.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and an object of the present invention is to improve shape retention and to provide a strength capable of withstanding fluid pressure so that a constricted portion can be securely formed. Is to form.

[0006]

According to a first aspect of the present invention, there is provided a fluid press-fit plate having a constricted portion on a surface thereof.
A surface member for forming a bag and containing a fluid, a fiber substrate provided inside the surface member, and a facing fabric connected via an inextensible connecting thread; and the surface member and the fiber. The gist of the present invention includes a suturing member for suturing a base material and a sealing member that is in close contact with the surface of the surface layer member and seals along the suturing member.

According to a second aspect of the present invention, a surface member for forming a bag and containing a fluid is provided inside the surface member, and the opposing fabrics are connected via a non-extensible connecting thread. A fluid press-fitting plate having a fibrous base material, wherein the surface member and the fibrous base material are sewn together by a suturing member in a state where the fibrous base material is superimposed on the plate, and the sealing member is adhered to the surface of the surface member along the suturing member The gist is that they do so.

According to a third aspect of the present invention, in addition to the second aspect, the seal member is welded to a surface member.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to the drawings. As shown in FIGS. 1 and 2, a fluid press-fit plate 11 is a flat bag-shaped surface layer sheet (surface layer member) 12 made of synthetic resin (vinyl chloride resin).
It has. The surface sheet 12 is a pair of sheet materials 1.
3a and 13b are bonded together. In the surface sheet 12, a three-dimensional woven fabric 14 as a fiber base made of synthetic fibers (rayon) is provided. The three-dimensional woven fabric 14 is made of the respective sheet materials 13a,
Each of the fabrics 13 and 16 is made up of fabrics 15 and 16 adhered to the inner surface of the fabric 13b with an adhesive, and a plurality of inextensible connecting threads 17 connecting the fabrics 15 and 16 to each other. Splicing thread 17
Is sewn between the fabrics 15 and 16.

At the center of the fluid pressure plate 11 in the width direction,
The sewing thread 18 as a suturing member extends in the longitudinal direction thereof.
The surface sheet 12 and the three-dimensional fabric 14 are sewn by the sewing thread 18. By this suturing, the inside of the fluid press-fit plate 11 is partitioned into a first air storage space S1 and a second air storage space S2, and the two air storage spaces S1 and S2 communicate with each other through a vent hole (not shown). . This ventilation hole is constituted by a part of the sewing thread 18 being slightly cut off. When air as a fluid is press-fitted into the two storage spaces S1 and S2 through an air inlet (not shown), the fluid press-fit plate 11
Are swelled in a rectangular parallelepiped shape. The air intake,
It is provided in a hole formed at an arbitrary position of the fluid press-in plate, and includes an air valve or the like used for a tire tube of an automobile.

Each sheet material 13 in the surface sheet 12
A pair of seal strips (seal members) 19a and 19b are closely welded to the surfaces of a and 13b along the sewing thread 18 so as to sandwich the surface sheet 12. When the fluid press-fit plate 11 expands as air is contained in the air containing spaces S1 and S2, the constricted portion 20 is continuously formed in the longitudinal direction of the fluid press-fit plate 11. It has become so.

In the drawings, in order to facilitate understanding, the thicknesses of the sheet materials 13a and 13b of the surface sheet 12, the fabrics 15 and 16 of the three-dimensional fabric 14, and the seal bands 19a and 19b are exaggerated. is there.

When air is fed into the two air accommodating spaces S1 and S2 of the fluid press-in plate 11 configured as described above, the entire fluid press-in plate 11 expands, and the surface sheet 12 is Sheet material 13a,
13b is held parallel except for the vicinity of its peripheral edge.
When the fluid press-fit plate 11 expands, a constricted portion 20 is formed over the length of the fluid press-fit plate 11. Then, the sewing thread 18 is formed by the seal bands 19a and 19b.
Since the vicinity is sealed, the air-tightness of the two air storage spaces S1 and S2 of the fluid press-fit plate 11 is increased, and air does not escape.

Next, a method of manufacturing the fluid pressure plate 11 will be described. As shown in FIG. 3, by bonding the fabrics 15 and 16 of the three-dimensional fabric 14 to the inner surfaces of the sheet materials 13 a and 13 b of the surface sheet 12,
A three-dimensional woven fabric 14 is interposed between a and 13b. Then, the surface layer sheet 12 and the three-dimensional fabric 14 are sewn with the sewing thread 18 in a state where these members 12 to 14 are overlapped. Thereafter, as shown in FIG. 4, the seal strips 19a and 19b are sandwiched and arranged on the surface sheet 12 along the sewing thread 18, and the entire seal strips 19a and 19b are
Ultrasonic welding.

Next, effects that can be found from the present embodiment will be described below. By using the three-dimensional woven fabric 14 in which the length of the connecting thread 17 is partially changed as the base material, it is possible to manufacture the fluid press-in plates 11 having various shapes. For example, a flat plate-shaped fluid press-fit plate 11 having a surface inclined in one direction or a fluid press-fit plate 11 having a desired shape such as a corrugated surface can be used.

When a local stress is applied to the fluid press-fitting plate 11, in order for the portion to be dented, the other portion needs to be expanded.
5, 16 are connected by a connecting thread 17, and the surface sheet 12
Since the sheet materials 13a and 13b are held at appropriate intervals, even if a stress is locally applied to the fluid press-fit plate 11, the portion hardly dents and the other portions do not expand. Therefore, the shape retention can be improved even though the fluid pressure plate 11 is used.

The fluid press-in plate has the characteristic that it can be folded down when air is discharged from the inside, that it is light and floats on water when air is injected as a fluid, and that it can be formed into a desired shape without roundness. 11 can be provided. Further, when it is necessary to submerge the fluid press-in plate 11 in water or make it heavy, the liquid press-fit plate 11 can be easily changed to various uses by enclosing a liquid or powder having a large specific gravity as a fluid.

The fluid pressure plate 11 is inserted under the load and lifts the load by inflating, an air jack is inserted between the loads, and a dunnage bag is inserted between the loads to prevent the load from collapsing. Concrete formwork, futon, car mat, outdoor ground mat, outdoor ground mat, outdoor table or chair, architectural partition, air fence,
Shock-absorbing protective mats, construction water tanks, simple bathtubs, temporary pools, advertising poles, billboards, air shooters, floating bodies for boat piers, auxiliary floats for boats, rafts, temporary bridges, boats, oil fences, airbags for automobiles (It expands in an emergency to protect the human body, but can prevent a secondary disaster caused by a recoil due to excessive expansion).

Since the surface sheet 12 and the three-dimensional fabric 14 are firmly stitched with the sewing thread 18, the two accommodation spaces S1, S
Due to the air pressure in 2, the sheet materials 13a and 13b of the surface sheet 12 in the inner part of the constricted part 20 do not separate. In addition, since the seal bands 19a and 19b are welded along the sewing thread 18, air does not escape from the two storage spaces S1 and S2. Therefore, while the sealing performance can be improved and the fluid press-fitting plate 11 has a strength that can withstand the air pressure,
The constricted portion 20 can be reliably formed.

The surface sheet 12 and the three-dimensional fabric 14 were sewn together with sewing threads 18, and seal bands 19 a, 19 b were welded to the surface of the surface sheet 12 along the sewing threads 18. In this welding, even if the entirety of the seal bands 19a, 19b is welded, the three-dimensional fabric 14 is interposed between the sheet materials 13a, 13b of the surface layer sheet 12, so that the seal bands 19, 1
It is possible to reliably prevent the sheet materials 13a and 13b corresponding to the portion 9b from being welded.

The above embodiment may be configured as follows. -In addition to rayon, the material of the three-dimensional fabric 14 is nylon,
Use synthetic fibers such as polyester and polypropylene, or natural fibers such as cotton and hemp.

The material of the surface sheet 12 is an olefin resin or a urethane resin in addition to the vinyl chloride resin. The constricted portion 20 may be formed intermittently in the longitudinal direction of the surface members 12, 13 or may be formed in a circular shape or a triangular shape.

The seal strips 19a and 19b are applied to the surface sheet 1
2. Adhering to the second sheet material 13a, 13b with an adhesive.

[0024]

The present invention is configured as described above, and has the following effects. According to the first aspect of the present invention, the shape retention can be improved, and the constricted portion can be surely formed by having strength enough to withstand the fluid pressure.

According to the second aspect of the present invention, it is possible to reliably prevent the surface layer member of the portion corresponding to the seal member from being in close contact. According to the third aspect of the present invention, the seal member can be quickly brought into close contact with the surface member.

[Brief description of the drawings]

FIG. 1 is a perspective view of a fluid pressure plate embodying an embodiment.

FIG. 2 is a sectional view showing a central portion of the fluid press-fit plate.

FIG. 3 is a cross-sectional view showing a manufacturing process of the fluid press-fit plate, before a seal band is welded.

FIG. 4 is a cross-sectional view showing a process of manufacturing the fluid press-in plate after a seal band is welded.

[Explanation of symbols]

12: surface sheet (surface member), 14: three-dimensional fabric (fiber base material), 17: connecting thread, 18: sewing thread (suturing member), 1
9a, 19b: seal band (seal member), 20: constricted portion

Claims (3)

[Claims] 1. A fluid press-fit plate having a constricted portion on its surface, comprising: a surface layer member for forming a bag and containing a fluid; and a non-extendable connecting thread provided on an inner side of the surface layer member and facing the same. A fluid press-fit comprising: a fibrous base material that is connected via an interposer; a suturing member that sews the surface layer member and the fibrous base material; and a sealing member that is in close contact with the surface of the surface layer member and seals along the suturing member. plate. 2. A surface member for forming a bag and containing a fluid, and a fibrous base material provided inside the surface member and having opposite fabrics connected via non-extensible connecting threads. A fluid press-in plate having a surface member and a fibrous base material superimposed on each other, and sewn by a suturing member, and a sealing member is adhered to the surface of the surface member along the suturing member. Manufacturing method. 3. The method according to claim 2, wherein the seal member is welded to a surface member.