JP3076482B2 - Rain protection equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a technique for enabling a building to be constructed even in rainy weather. More specifically, the present invention relates to a temporary sheet for rain protection which covers the top and sides of a building. And a framework for holding it in a working posture.

[0002]

2. Description of the Related Art According to this type of rain protection equipment, a lightweight, easy-to-handle temporary sheet-like material is used as a covering material for covering the upper and side portions of a building construction site to prevent rain from entering the construction site. Since a material is used, the load on the strength required for the frame holding the temporary sheet can be reduced, and the temporary sheet can be easily attached to the frame by tying it with a string. In addition, a scaffold installed on the outer periphery of a construction site or a building under construction can be used, which has an advantage that the work can be performed with good workability and at low cost.

On the other hand, however, the temporary sheet is covered by the wind because the temporary sheet is covered by the wind, and the temporary sheet is strongly or strongly pushed by the wind. Strong contact with workers located nearby, buildings under construction, equipment, machinery, materials, etc., and such contact is repeated. Such contact with the temporary sheet-like material hinders the actions of workers, equipment, and machines, and also causes damage to the building, equipment, materials, and the temporary sheet-like material under construction. In such a case, there is a risk that a strong push may lead to an accident such as a fall of a worker, equipment, or a machine, or a collapse of stacked materials. Especially when the wind is strong, such as a typhoon, the temporary sheet is large and strongly fanned, and the roof and the leeward side of the temporary sheet receive a large negative wind pressure from the wind. In this case, the temporary sheet may be peeled off from the skeleton.

[0004] As a countermeasure against the wind in consideration of such inconvenience, conventionally, means for increasing the number of attachment points of the temporary sheet-like object to the skeleton have been adopted.

[0005]

However, according to the above conventional technique, the strength of attachment of the temporary sheet to the skeleton can be increased to prevent the temporary sheet from being peeled from the skeleton by wind. In addition, although the temporary sheet-like material can be suppressed from being blown by the wind, there is a disadvantage that the temporary sheet-like material cannot be reliably prevented from being blown by the wind. Moreover, increasing the number of attachment points increases the number of man-hours, and therefore, the workability of attaching the temporary sheet-like material to the framework has been reduced.

Further, the present inventor has proposed that the skeleton is disposed inside the temporary sheet, and the temporary sheet is pressed against the skeleton by a rope such as a wire in a rainy weather, so that the temporary sheet is swung. We thought about the means to control.
However, even in the case where this means is adopted, in order to suppress the temporary sheet-like material from being swung to such an extent that the above-mentioned inconvenience can be avoided, it is necessary to increase the number of holding ropes to be used and increase the number of places where the rope is held down. The disadvantage is that it requires a lot of work, which results in a very large amount of labor and time.

An object of the present invention is to reliably prevent the temporary sheet-like material from being peeled off by a strong wind or being strongly blown by the wind with good workability.

[0008]

SUMMARY OF THE INVENTION The features of the rain-prevention equipment according to the present invention include a temporary sheet-like material for rain-prevention covering the upper and side portions of a building construction site, and a skeleton for holding the same in a working posture. In the rain protection equipment consisting of, a frame is disposed inside the temporary sheet-like material, and a pressure reducing means for maintaining the inside covered with the temporary sheet-like material at a reduced pressure lower than the outside is provided, and the temporary sheet-like material is provided. The point is that an airbag which can be freely inflated and deflated is interposed between the upper part of the object and the framework located below the object.

[0009]

When the inside is depressurized by the decompression means, the entire surface of the temporary sheet is pressed against the skeleton by the pressure difference between the inside and the outside, and adheres closely. As a result, in normal times, the temporary seat is set to the same pressure as the outside without operating the pressure reducing means, so that power is not wasted, but the wind blows and hinders work. In the case where the material is fanned, the temporary sheet material is brought into close contact with the framework by the work and time-consuming work of operating the decompression means, and the wind is used to lift the temporary sheet material. And can be prevented from being peeled off from the skeleton. In addition, since the decompression means has a function of discharging the internal air to the outside, this decompression means is used for ventilation of the inside of the building, which is externally sealed with a temporary sheet, that is, a construction site. can do.

[0010] Further, by inflating the air bag interposed between the upper part of the sheet-like material and the framework below the same, a space can be secured between the upper part of the sheet-like material and the framework.
Even in rainy weather, it is possible to work from above the building such as the roof. When the pressure reducing means is operated to prevent the sheet-like material from being swung when the wind is strong, the sheet-like material can be brought into close contact with the skeleton by contracting the airbag.

[0011]

Therefore, according to the present invention, (a) the workability of attaching the temporary sheet material to the skeleton is maintained well, and the advantage of the rain shelter comprising the intended temporary sheet material and the skeleton is obtained. Even when a strong wind such as a typhoon suddenly occurs, the temporary sheet can be quickly and easily responded to the wind, and the temporary sheet can be peeled off from the framework by the strong wind. It was able to prevent being agitated, and it was possible to make building construction work safely inside. (B) Moreover, by effectively utilizing the pressure reducing means, the internal ventilation configuration can be simplified and the cost can be reduced. (C) In addition, the use of the inflatable / inflated air bag has the advantage that the above-mentioned effects (a) and (b) are exhibited while the upper part of the building can be conveniently operated from above even in rainy weather.

[0012]

1 and 2, reference numeral 1 denotes a building under construction at a construction site, and reference numeral 2 denotes a temporary scaffold installed along the outer periphery of the construction site. The rain protection equipment covering the upper part and the side part of the construction place so as to enable the construction of the building 1 even in rainy weather is provided outside the building 1 and the scaffold 2 and covering the upper part and the side part of the construction place. It is composed of a temporary sheet-like member 3 for exclusion and a framework 4 for holding it in an operating posture.

In the frame 4, the upper supporting portion for supporting the upper portion 3A of the temporary sheet 3 is constituted by the roof of the building 1, and the side supporting portion for supporting the side portion 3B is constituted by the scaffold 2. Have been. The upper part 3A is provided with an air bag 5 which is inflated by filling air to the upper supporting part, and as shown in FIG. A work space is formed between the upper supporting portion and the upper surface of the portion, and the upper supporting portion supports the working space in a roof shape having a gradient for flowing water. 6 is
This is a compressor for filling the air bag 5 with air.

[0014] The rain shelter is provided with a temporary sheet material 3.
And a decompression means for maintaining the interior covered with the pressure reduced to a pressure lower than the outside. The pressure reducing means is provided with a blower 7 for discharging the internal air to the outside, and sensors Si and So for detecting the atmospheric pressure inside and outside are provided, and the difference or ratio between the detection values of the two sensors Si and So becomes the set value. The blower 7
Is provided with a control device 8 for operating the.

It is preferable that the temporary sheet-like material 3 that seals the inside to the outside is excellent in airtightness. However, the capacity of the blower 7 is selected so that more air than the amount of air entering through the gap is provided. Can be carried out even if there is a gap. That is, in order to obtain airtightness, the work of attaching the temporary sheet-like material 3 is not made difficult, and it is not difficult to get in and out of the inside.

According to the above arrangement, there is no wind or
At normal times when the sheet is weak and the inconvenience caused by the temporary sheet 3 being lifted does not occur, as shown in FIG. Perform construction work.

Then, in an emergency, when the wind causes the temporary sheet 3 to be inconvenienced by being blown, as shown in FIG. 2, the air is evacuated from the air bag 5 to contract it and the blower 7 is operated. By doing so, the internal air pressure is made lower than the external air pressure, and the temporary sheet-like material 3 is brought into close contact with the skeleton 4 by the pressure difference. The top of the roof of the building 1 is in close contact with the entire side 3B of the scaffold 2 in close contact with the outer surface of the scaffold 2. By this wind countermeasure, the temporary sheet material 3 is blown by the wind or peeled off from the frame 4 by the wind. That can be prevented.

That is, the internal pressure reduced by the pressure reducing means is applied to the temporary sheet material 3 by the pressure difference from the outside.
In order to minimize the load on the pressure reducing means, it is preferable that the pressure difference be as small as possible. As an example of a specific numerical value, the pressure difference is 0.
It is about 0001 hectopascals.

[Alternative Embodiment] In the above-mentioned embodiment, the temporary sheet-like material 3 is used as the upper support portion of the framework 4 while the roof part being constructed is used.
3, the temporary structure 9 supporting the upper part 3A of the temporary sheet-like material 3 is supported on the scaffold 2, and the scaffold 2 and the temporary structure 9 are supported as shown in FIG. The framework 4 may be configured and implemented. In this case, the airbag 5 is interposed between the temporary structure 9 and the upper part 3A.

As shown in FIG. 3, after the lower building part is created, the scaffold 2 is extended upward as shown in FIG.
Then, by adding the upper building part to the created lower building part in the form of extension, even when building 1 is constructed, the temporary sheet 3 is added together with the extension of the scaffold 2. The present invention can be applied.
In addition, by repeating the extension of the scaffold 2 and the replenishment of the upper building part, the temporary sheet-like material 3 is extended along with the extension of the scaffold 2 even when the high-rise building 1 is constructed. Can be applied.

In the above embodiment, the skeleton 4 is constructed by using the scaffold 2. However, the skeleton 4 is used as a temporary object different from the scaffold 2.
Alternatively, only the building 1 under construction may be used as the skeleton 4. In the above embodiment, the air bag 5 is provided, and the upper part 3A of the temporary sheet 3 is provided.
Has a slope and forms a working space between the building 1 and the roof.

In the claims, reference numerals are provided for convenience of comparison with the drawings, but the present invention is not limited to the configuration shown in the attached drawings.

[Brief description of the drawings]

FIG. 1 is a schematic sectional view of a normal working state showing an embodiment.

FIG. 2 is a schematic cross-sectional view showing a working state in which a countermeasure against wind is shown, showing an embodiment;

FIG. 3 is a schematic sectional view showing another embodiment.

FIG. 4 is a schematic sectional view showing another embodiment.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Building 3 Temporary sheet material 3A Upper part 4 Frame 5 Air bag

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-50-142342 (JP, A) JP50-22816 (JP, B1) (58) Fields investigated (Int. Cl. ⁷ , DB name) E04G 21/28 E04H 15/58 E04H 15/64

Claims (1)

(57) [Claims] 1. A rain gutter comprising a temporary sheet material for rain gutter covering an upper portion and a side portion of a construction site of a building, and a skeleton for holding the same in an operating posture. A facility for arranging the skeleton (4) inside the temporary sheet material (3) and reducing the pressure inside the area covered with the temporary sheet material (3) to a pressure lower than that of the outside. Rutotomoni a means, the upper part of the temporary sheet (3)
(3A) and the skeleton (4) located below it.
An air bag (5) that can freely expand and contract is interposed between them
Rain except equipment you have.