JP3282016B2 - Rain dust guard air film roof - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to repairing, painting, construction work, temporary exhibits, ball games, etc. of ships, when work is not possible in windy, dusty places, rainy weather, etc. More particularly, the present invention relates to an easy-to-handle and light-weight rain dust guard air film roof for covering the whole work.

[0002]

2. Description of the Related Art Generally, in the case of work outdoors, the work is stopped in rainy weather or the like, and the work is continued after the rain stops. As a method of securing such a work space in the rainy weather, in the case of a small size, a means such as an umbrella to a sheet tent has been used. If a large working space such as 100 m ² or more is required, there is a fixed type air tube tent that fixes and uses an air tube structure tent, but it is heavy, and assembly is troublesome and time consuming. are doing.

[0003]

Conventionally, in the rainy weather, repair painting, construction work, and exhibition of events that require a work space of, for example, 100 m ² or more are suspended. Air film that is currently in the case of area 100 m ² or larger, heavy weight of the membrane body (600 g / m ² or more), the attachment and removal is difficult, not one not be removed once attached the 3-6 months use It has not been. The present inventors have conducted various studies in view of such a current situation, and as a result, even in the case of a large area having an area of 100 m ² or more,
These problems can be solved by inventing an air film roof that is easy to assemble and disassemble, is easy to carry and has little storage space, and can be removed every day.

[0004]

According to the present invention, the total surface area is one.
A air injection type working light rain dust guard is 00~500m ^2, weight 30 to 200 g ^{/ m} 2,
Using a membrane material with an air permeability of 0.1 cc / sec · cm ² or less, the total surface area of the air-injected part in a double structure is
Not less than 30% of the total surface area, the said 2-laminate thereon
Long rib Hohodzue film connecting the surface layer and the lower surface film is attached plurality <br/>, the single said Hohodzue film, the total area is 1 / 400-1 / 2 of the area of Hohodzue film alone, circular, a plurality of gap portions of the oval or egg-shaped is formed, e
When the width direction of the die film is regarded as the vertical direction, the vertical length of each of the void portions is about 2/3 or less of the width of the die film, and the horizontal length is 2 or less with respect to the vertical length 1. In addition to the above, a soft material (JIS L 1
096 is a rain dust guard air film roof-like material characterized by being formed by a cantilever method (5 to 20 cm). In this case, one or both sides of a woven or knitted fabric made of at least one fiber selected from the group consisting of polyester fiber, polyamide fiber, aramid fiber, carbon fiber, polyolefin fiber, and polyarylate fiber are resin-processed, and the air permeability is reduced to 0. use the .1cc / sec · cm ² or less in the film material, on the side of the double structure part which was provided an air injection outlet of one or more, the entire surface of the air film roof-like material
Preferably the product with 100 to 500 m ^2.

[0005] Further, the double structure portion has an upper film and a lower surface.
Attach a plurality of long rib-shaped hose-like membranes connecting the membranes ,
The material of the rib-like Hohodzue film equal to or slightly hard and the material of the double structure, together with the elongation uses less than the body material, the single rib Hohodzue film, the total area of Hohodzue
It is preferable to provide a void portion that is 1/400 to 1/2 of the area of the film alone ( the area including the void portion is also referred to as the total area), particularly a circular void portion. As described above, the void portion is formed in the hollow film.
Assuming that the width direction is the vertical direction, the vertical length of each unit
D) The width is less than about 2/3 of the width of the film , and the horizontal length is the vertical length.
It is necessary to make 2 or less for 1 .

[0006]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The rain dust guard air film roof of the present invention has a thickness of 30 to 200 g / m ² , preferably 50 to 200 g / m ² .
g / m ² or less (basis weight), air permeability 0.1 cc / sec
c · cm ² or less, preferably 0.02 cc / sec · c
A film material of m ² or less is used. If the weight exceeds 200 g / m ² , it is difficult to attach and remove the components, and the work is troublesome and time-consuming. If the weight is less than 30 g / m ² , there is a problem in strength and air permeability, and stable use is difficult. In particular,
30 to 50 g / m for large, lightweight
Preferably it is ² . The air permeability is 0.1cc / sec
If it exceeds cm ² , if the surface area is increased as in the present invention, the shape retention is lost, which is not preferable.
1 cc / sec · cm ² or less, especially 0.02 cc / sec
It is preferably at most c · cm ^2, more preferably substantially zero.

Further, the total surface area of the air film roof-like material is 10
Good to the 0~500m ^2. This total surface area is 50
If it exceeds 0 m ² , there is a problem in terms of strength, while 100
and the use of for a small scale is less than m ² there is a problem such as lowered. The material of the membrane material is polyester fiber, polyamide fiber, aramid fiber, carbon fiber, polyolefin fiber, polyarylate fiber, any other strong synthetic fibers, but any polyester fiber is preferable.
It is an aramid fiber, and a fabric woven and knitted with each fiber is compounded with a resin such as polyurethane, acrylic rubber, fluororubber, or vinyl chloride resin, and has an air permeability of 0.1 as described above.
A film material of cc / sec · cm ² or less is used.

[0008] The portion having a double structure has a total surface area of 30 parts.
% Or more, it is necessary to configure the air column at less than 30%.
It is difficult to start up, which is not desirable. When a plurality of double structural parts are provided, it is preferable to connect the double structural parts, which is effective for shape retention, stability, assembly or removal. Further, at least one air injection outlet is provided on one side of the double structure portion. The number of the air injection outlets is preferably larger as the number of the air injection outlets is increased, so that the number of the air injection outlets may be appropriately determined according to the structure of the double membrane.

In the double membrane structure, especially when the total surface area is a double membrane structure, it is preferable to add rib-shaped hoje (membrane) membrane materials at intervals of 20 to 100 cm. Ribbed hoho
D) The membrane material is the same material as the double membrane structure or the same hardness or slightly harder (it should be less than 3 times by JIS L 1096 cantilever method, and if it exceeds 3 times hardness, it will be stored. Is not easily performed). Conventionally, for example, a net-like thing is used for a paraglider or the like, but the form of the double film is not stable and is not preferable. In addition, for large air film materials, rope-like material
In some cases, the lower surface film material is fixed, but the dimensional stability is still poor, and the shape of the film material is difficult to be fixed by air injection.

On the other hand, according to the present invention, as described above, the use of a material which is the same as or slightly harder than the main body and / or which has a lower elongation than that of the main body membrane material provides good dimensional stability and a good storage stability. Is easy to fold and compact. In addition, a soft film material (cantilever method 5-20c)
By using m), it is easier to fold and more compact and effective. The rib-shaped film material has a size of 1/400 to 1/2 of the area of the corresponding simple substance , and at least 2/2 of the length of the film material in the width direction.
Circular, elliptical or egg-shaped circular voids (holes) having a length of 3 or less are provided.

In the shape of the gap, when the width direction of the rib-like material is vertical, and when the vertical length of the gap is 1, the horizontal length is preferably 2 or less and 0.1 or more. If the ratio is out of this range, the gap may be deformed, and the membrane body may be deformed or broken. Furthermore, the total area of the plurality of voids is
D) Exceeds 1/2 of the area of the membrane material alone, or the void alone
If the vertical length exceeds 2/3 of the membrane width, the strength
It is weak and easily deformed, and the total area of multiple voids is membrane material
If the area is less than 1/400 of the unit area , it takes time to inject and discharge air. The shape of the void is preferably circular,
A circular shape such as an elliptical shape and an egg shape is preferable.

[0012]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below with reference to the drawings, but the present invention is not limited to these embodiments.

Example 1 A urethane resin [manufactured by Seiko Kasei Co., Ltd., made of a 40-denier / 20-filament polyester filament yarn woven at a density of 114 yarns / inch in both processes.
A polyester polyurethane U-1468 was used as a curing agent, and an isocyanate system manufactured by Nippon Polyurethane Co., Ltd., and Coronate HL was used.], And the air permeability was 0.02 cc / sec · cm ² , the weight was 48 g / m ² ,
Strong; 47 kg / 5 cm, 45 kg / 5 cm, hardness
Using a BR> 5cm (JIS 1096, cantilever method), a lightweight rain dust guard air film roof for air-injection type work as shown in Fig. 1 (width 15m, depth 1)
0m arc shape).

The main body 1 includes an upper surface film 2, a lower surface film 3, inner ribs 4 forming a rib-like film, and outer ribs (no gaps) 5. Nineteen inner ribs 4 are arranged in the depth direction of the main body at intervals of 50 cm. Eighteen circular ribs (holes) 6 having a diameter of 40 cm are provided at equal intervals in each inner rib 4 for a width ( vertical direction ) of 80 cm. , So that the whole can communicate. Also, both sides of the main body 1 have a diameter of 40.
cm air inlets 7 were attached at 10 places (5 places on one side). This was injected with an air pressure of 1.05 kg / cm ² , and the startup was completed in about 5 minutes. It took about 7 minutes to discharge all air and about 15 minutes to store.

Embodiment 2 Using the same material as in Embodiment 1, as shown in FIG. 2, an upper surface film 12, a lower surface film 13, an inner rib 14 and an outer rib (with no gap) 15 for forming a rib-like film are formed. Main body 1 having
1, a lightweight rain dust guard air film roof for events with a circular shape (9.2 m in diameter,
Height 4m). The rib width is gradually reduced from the lower 60 cm according to the shape, and the inner ribs 14 are 30
And a circular gap 1 having a diameter of 1/2 of the rib width.
4 to 6 each, and the whole was communicated as in Example 1, and 12 air injection ports 17 having a diameter of 40 cm were attached to the outer side surface.

When this was injected at an air pressure of 1.05 kg / cm ² , startup was completed in about 3 minutes. Also,
The work was completed in about 5 minutes, until the air was discharged and removed and stored. After the start-up, the shape of the main body was stable up to a wind speed of 10 m / sec without any significant effect. The rain flowed smoothly without accumulation on the main body, and did not cause any problem.

COMPARATIVE EXAMPLE 1 The same shape as that of the first embodiment is shown in FIG.
As shown in FIG. 3A, an isosceles triangle 31 having a vertex angle of 25 degrees, an isosceles triangle 32 having 30 degrees, an isosceles triangle 33 having 45 degrees, and an equilateral triangle 34 having 60 degrees are shown in FIG. Vertical ellipses 35, 36, perfect circle 37 and horizontal ellipse 38, FIG.
(C) I-shaped slits 39 and 40 and X slit 4
Inspection of the shape change of the main body by injecting air at 1, 42, etc., showed that in FIGS. 3 (a) and 3 (c).
If the peak angle is deformed, the ribs will tear
I did

In the case of an elliptical or circular shape shown in FIG .
When the width direction of the rib is viewed as the vertical direction , the horizontal length is preferably 2 or less and 0.1 or more with respect to the vertical length 1 of the gap, and if it deviates from this, the shape change of the main body is remarkable. . Regarding the shape of the void, the shape from a perfect circle to a vertical ellipse was the best, and the ideal body shape was maintained and stable.

COMPARATIVE EXAMPLE 2 The same as in Example 1, except that the voids 43 of the inner ribs 4 were formed in a perfect circle, and the main bodies were formed according to the size as shown in FIG. Was. The size of the gap 43 is centered on the center position with respect to the width of 800 mm of the rib 4, the interval is 50 mm from 750 mmφ to 50 mmφ, and 1 interval from 50 mmφ to 10 mmφ.
At intervals of 0 mm, the gaps are arranged at intervals of 1 m,
Each was started up and the shape change of the main body and the efficiency of air injection and discharge were measured.

As a result, for a rib width of 800 mm, 55
At 0 mmφ or more, deformation of the main body and wrinkles on the surface were confirmed, but at 500 mmφ or less, there is no such problem at all, and the length may be set to 2/3 or less with respect to the rib width. understood. When the diameter is less than 50 mmφ, that is, when the void area is less than 1/400 of the rib area, the air does not flow smoothly, it is difficult to make the whole pressure uniform, and it took 30 minutes or more to inject and discharge the air. . This tendency was the same for other shapes. Therefore, when providing a gap in the inner rib, it is preferable that the length is set to 2/3 or less with respect to the rib width and the area of the gap is set to 1/400 or more of the inner rib area.

[0021]

As described above, according to the present invention,
With a large surface area of 100m ^{2 to} 500m ²
In spite of this, it has a remarkable effect that it is lightweight, easy to assemble and disassemble, easy to carry and has little storage space, can be detached every day, and can be used stably and easily over a long period of time.

[Brief description of the drawings]

FIG. 1 is a perspective view including a partial cross section showing an embodiment of the present invention.

FIG. 2 is a perspective view including a partial cross section showing another embodiment of the present invention.

FIG. 3 is a schematic view of an inner rib for explaining a comparative example.

FIG. 4 is a schematic view of an inner rib for explaining another comparative example.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Main body 2 Upper surface film 3 Lower surface film 4 Inner rib 5 Outer rib 6 Air gap 7 Air injection outlet 11 Main body 12 Upper surface film 13 Lower surface film 14 Inner rib 15 Outer rib 16 Air gap 17 Air injection outlet

 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Takashi Murayama 1-6-7 Minamihonmachi, Chuo-ku, Osaka-shi, Osaka Teijin Limited (72) Inventor Masatake Iida 1-1-1, Akunouracho, Nagasaki-shi, Nagasaki Mitsubishi Heavy industry Co., Ltd. Nagasaki Shipyard (72) Inventor Koji Eda 73-1 Nishi-Nagamine, Iiyama-shi, Nagano Pref. Falhawk Co., Ltd. (56) References Japanese Utility Model Sho 60-187259 (JP, U) 5-73172 (JP, U) Jiko 11-3614 (JP, Y1)

Claims (8)

(57) [Claims] 1. A working light rain dust guard d <br/> earth-injection total surface area of 100 to 500 m ^2,
Weight 30 to 200 g / m ² , air permeability 0.1 cc / sec
・Air with a double structure using a membrane material of cm ² or less
The total surface area of the injection part is 30% or more of the total surface area
Ri, the said 2-laminate elongated connecting the top film and the lower surface film
A plurality of rib-like film is attached, and the total area of each of the film is 1% of the area of the film.
/ 400-1 / 2 and becomes a circular, elliptical or egg-shaped
A plurality of voids are formed, and the width direction of the
In view of the above , the vertical length of each of the voids is about ／ or less of the width of the hollow film, the horizontal length is 2 or less with respect to the vertical length 1, and 2 A rain-dust guard air film roof, wherein the heavy structure portion and the rib-shaped hollow film are formed of a soft material (5 to 20 cm according to JIS L 1096 cantilever method). 2. The film material is at least one selected from the group consisting of polyester fibers, polyamide fibers, aramid fibers, carbon fibers, polyolefin fibers, and polyarylate fibers.
The rain-dust guard air film roof according to claim 1 , wherein one or both sides of a woven or knitted fabric made of a kind of fiber are resin-processed. 3. A process according to claim a weight of 30 to 50 g / ^{m 2}
The rain-dust guard air film roof according to any one of claims 1 to 2 . 4. The rain-dust guard air film roof according to claim 1, wherein one or more air injection outlets are provided on a side surface of each double structure portion. 5. The claim 1 of the rib-like Hohodzue film is attached at intervals of 20~100cm
The described rain dust guard air film roof. 6. ribbed Hohodzue film rain dust guard air film roof-like material of any one of claims 1 to 5 is the same or slightly harder material and 2-laminate. 7. Any of claims 1 to 6 which is a marine paint
The rain dust guard air film roof according to claim 1 . 8.], which is used for construction work any of the claims 1 to 6
The rain dust guard air film roof according to claim 1 .