JPH06346593A - Protective cover for scaffold board of frame scaffold at construction site - Google Patents

Abstract

PURPOSE:To prevent ready-mixed concrete, paint, adhesive and the like from sticking to a scaffold board and prevent collection of rainwater on the scaffold board to prevent of the scaffold board of a frame scaffold in a construction site with a water permeable sheet in a removable manner. CONSTITUTION:A protective cover 3 is composed of a flat upper surface 4 covering the footing surface of a scaffold board and a hanging wall 5 covering the side surface of the scaffold board and the entire cover with a water permeable sheet with no hanging wall on the back and at the end in the longitudinal direction and no cover on the back of the scaffold board. A plurality of connecting means 7 are fitted on one of the ends of the hanging wall 5 of the protective cover 3 in locations where they do not overlap with slippage prevention materials on the back of the scaffold board. The preventive cover 3 is laid over starting from the footing surface of the scaffold board while the sides are covered with the hanging wall 5 and the connecting means 7 provided on one of the ends of the hanging wall 5 is connected to the hanging wall 5 on the opposite side. Thus sticking of ready-mixed concrete, paint, adhesive and the like to the scaffold board can be prevented and collection of rainwater on the scaffold board can also be prevented.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a scaffold plate cover for protecting at least the tread surface and the side wall of a scaffold plate of a frame scaffold at a construction site.

[0002]

[Prior Art] Scaffolding boards for framework scaffolding at construction sites,
Aluminum alloy plates are often used to reduce weight. Further, a water passage hole is bored in order to impart drainage property and anti-slip property. All of these scaffold plates are plates with exposed metal, and no protective material is used on the surface of the plates.

[0003]

Since the conventional scaffolding plate has no protective material, it often happens that fresh concrete, paint, adhesive or the like scattered at the time of pouring concrete adheres to the tread surface or the side surface. Since this raw concrete, paint, adhesive, etc. are solidified and fixed to the scaffolding plate, unevenness of the tread surface occurs, which makes it difficult to walk, and also causes a problem of filling up drain holes. It is very dangerous because water will slip on the scaffolding board.

Further, if it is fixed to the side surface, the width dimension changes, which causes a problem that it cannot be properly incorporated in the frame scaffold. In addition, it causes problems such as being unable to be compactly packed during transportation. Therefore, in order to remove paints, adhesives, concrete, etc. that have once settled, the scaffolding board is removed after the completion of construction and the concrete lumps are removed by hitting with a hammer or iron rod. However, in such a method, noise is generated, dust is scattered, the environment is adversely affected, and the scaffold plate is likely to be deformed. Further, there are many problems such as not being able to remove all the adhered concrete and the like and taking a long working time. The present invention solves all such problems by developing special measures.

[0005]

Means for Solving the Problems The present invention provides "1. A flat portion formed of a water-permeable sheet and having substantially the same shape as a tread of a scaffolding plate of a frame scaffolding at a construction site, and a length of the scaffolding plate of the flat portion. It consists of a side wall of the long side of the scaffolding board that hangs downward from the side that hits the side and a hanging wall part of almost the same shape, and multiple connecting tools are placed on the hanging wall part in a position that does not overlap with the slip prevention material on the back of the scaffolding plate. Attached to the scaffolding board cover 2. Attaching the connecting tool to the hanging wall on one side of the long side of the cover, connecting the connecting tool to the hanging wall on the opposite side through the lower surface of the scaffolding board, and connecting with the scaffolding board Scaffolding cover 3. Scaffolding board cover according to item 1, in which the connecting tool is attached to the hanging walls on both sides of the long side of the cover, and the lower surface of the scaffolding board is connected to connect with the scaffolding board. It is a belt that has a coupling on the
The scaffolding board cover described in any one of items 1 to 3. 5. The cover is made of a flameproof water-permeable sheet, 1
The scaffolding plate cover according to any one of items 1 to 4. Regarding

[0006]

The first feature of the present invention resides in that the tread surface and the side surface of the scaffolding plate on which fresh concrete or the like adheres are detachably covered with a water-permeable sheet. Of course, you can cover the back, too,
Fresh concrete adheres to the treads and side surfaces, so this surface must be covered. Since the concrete and the like adhere to the back surface of the scaffolding board and the abutting surface in the length direction, it is not necessary to cover it with a cover.

Therefore, the scaffolding plate protective cover of the present invention is a box-shaped cover of a bottom opening type having a U-shaped cross section.
The scaffold plate includes a flat portion that covers the tread surface, and a hanging wall that hangs down from the flat portion to the measuring surface in the longitudinal direction. This cover is covered from the tread of the scaffolding board, and the side wall is covered with the hanging wall portion, and the connecting tool provided on one of the hanging walls connects with the facing hanging wall, or the connecting tools provided on the facing hanging walls are connected with each other. And fix the cover to the scaffolding board. Although various kinds of connectors can be used, it is convenient to use a rope, a band or the like. A hook can be installed as a coupling tool at one end of the rope or band, and a mating hole can be provided at the mating partner to connect it detachably.Also, one end of the rope or band can be connected to the hanging wall by a mudgek. Tape (registered trademark No. 1501016, registered trademark No. 1501017)
May be provided. Further, one locking piece of the above-mentioned mudgek tape is arranged at the opposite position of the hanging wall of the cover, and the other locking piece of the above-mentioned mudgek tape is arranged at both ends of the band to join them. It can also be fixed by. Further, when a stretchable material is used as the rope or band of the connecting tool, the cover can be tensioned and stretched, so that a flat tread can be formed without wrinkles or folds.

A second feature of the present invention is that the disposition position of the cover connecting tool does not overlap with the slip preventing material provided on the back surface of the scaffold plate. The scaffolding plate must be stably fixed to the frame material when assembled on the frame scaffold, and the rubber anti-slip material is arranged at several places on the back surface. If the cover connecting tool covers the surface of the anti-slip material, there is a risk that the scaffolding board will slip between the frame material and the cover connecting tool. So that it does not overlap with the anti-slip material.

The third feature of the present invention is to use a water-permeable sheet having a porosity of 5% to 50% as a cover. As mentioned above, the presence of water due to rain on the scaffolding is dangerous for pedestrians, so there is a drainage hole in the board.However, when the cover is put on, there is water on the cover. Again, there is a danger of slipping, so we have to prevent the accumulation of water. According to the study by the present inventor, it was difficult to remove water even if the structure of the sheet was changed if the porosity of the sheet was 5% or less. If the porosity is increased, it will be easier to remove water, but if the porosity is 50% or more, raw concrete, paint, etc. that have dropped onto the scaffolding board will pass through the cover and adhere to the scaffolding board, resulting in a cover effect. Disappear.
Therefore, the cover must be a water-permeable sheet having a porosity of 5% to 50%.

The fourth feature of the present invention is that the cover is a flameproof sheet. Welding work is performed at the construction site,
Since welding sparks are scattered, it is dangerous if there is no flameproof property. For the cover of the present invention, a mesh sheet or net woven from flame-retardant fibers, a non-woven fabric, a foamed sheet provided with communication holes of soft vinyl chloride resin, or the like is used. As the flame-retardant fiber, one generally known can be used. For example, polyester fiber or nylon fiber coated with vinyl chloride resin is preferably used. A woven or non-woven fabric made of polyester fiber or nylon fiber, which is resin-processed with vinyl chloride resin, is also used. Since vinyl chloride resin is flame-retardant, good effects can be obtained. Also, a vinyl chloride resin foam sheet provided with water passage holes can be used. The most suitable one is a disaster prevention safety mesh sheet or net stretched on a frame scaffolding at a construction site, and this sheet is preferable from the viewpoint of flame retardancy, water permeability and strength. According to the present invention, a scaffolding plate free from concrete, paint, etc. can be easily obtained by removing the cover after the construction is completed, and the step of removing concrete etc. is unnecessary. In addition, the cover has the effect of preventing slippage and also providing an indication of a pedestrian's safe passage.

[0011]

EXAMPLES Next, examples will be specifically described.

FIG. 1 is a scaffolding board. The plate 1 is usually made of aluminum alloy. 2 is a drain hole provided in the plate.

FIG. 2 shows a protective cover for the scaffolding plate of the present invention. The protective cover 3 is composed of a flat upper surface 4 that covers the tread surface of the scaffolding plate and a hanging wall 5 that covers the side surfaces, but there is no hanging wall on the back surface and the abutting surface 6 in the longitudinal direction, and the back surface of the scaffolding board is Do not cover. In this embodiment, a band 7 is provided as a connecting tool on the hanging wall on one side, and a connecting tool 8 is provided at the tip thereof.
As the above-mentioned Mudgek tape (registered trademark No. 15010
No. 16, registered trademark No. 1501017) are arranged.

FIG. 3 shows the scaffolding board covered with a cover. In this embodiment, the connector is arranged on the hanging wall on one side of the cover and is connected to the hanging wall on the opposite surface through the back surface of the scaffold plate. You may combine on the back surface of. In any case, the coupling does not overlap the anti-slip material on the back of the scaffolding board.

FIG. 4 shows the plane of the woven cloth cover, and 9 is a water passage space. FIG. 5 shows a plane of the cover of the soft vinyl chloride resin foam sheet, and 9 is a water passage space. This vinyl chloride resin sheet may be flocked on the surface. Figure 6
2 shows a plane view of a non-woven cover. The voids between the fibers are water-permeable voids.

[0016]

INDUSTRIAL APPLICABILITY The present invention is a scaffolding board protective cover having a specific porosity, which prevents fresh concrete, paint, adhesive, etc. from adhering to the scaffolding board, and prevents rainwater or the like from adhering to the scaffolding board. It has the effect of preventing accumulation and preventing slippage, and can display a safety passage to the operator.

[Brief description of drawings]

FIG. 1 is an explanatory view showing a scaffold plate covering a protective cover of the present invention.

FIG. 2 is an explanatory diagram of a protective cover of the present invention.

FIG. 3 is an explanatory view of a scaffolding plate covered with the protective cover of FIG. 1.

FIG. 4 is a plan view of a woven fabric type protective cover of the present invention.

FIG. 5 is a plan view of a protective cover formed of the water-permeable soft vinyl chloride resin foam sheet of the present invention.

FIG. 6 is an explanatory diagram of a protective cover formed of the nonwoven fabric of the present invention.

[Explanation of symbols]

 1 Scaffolding board 2 Drainage hole of scaffolding board 3 Protective cover 4 Top surface 5 Hanging wall 6 Abutment surface 7 Connecting tool 8 Coupling tool 9 Void

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[Procedure amendment]

[Submission date] November 30, 1993

[Procedure Amendment 1]

[Document name to be amended] Statement

[Correction target item name] 0006

[Correction method] Change

[Correction content]

[0006]

The first feature of the present invention resides in that the tread surface and the side surface of the scaffolding plate on which fresh concrete or the like adheres are detachably covered with a water-permeable sheet. Of course, you can cover the back, too,
Fresh concrete adheres to the treads and side surfaces, so this surface must be covered. The back surface of the scaffold plate and the abutting surface in the length direction do not need to be covered with a cover because fresh concrete or the like does not adhere thereto.

Claims (5)

[Claims] 1. A flat part formed of a water-permeable sheet and having substantially the same shape as the tread of a scaffolding plate of a frame scaffolding at a construction site, and the flat part hanging downward from the side of the scaffolding plate that is in contact with the long side of the scaffolding plate. A scaffolding board cover comprising a side wall of a long side of the scaffolding board and a hanging wall portion having substantially the same shape, and a plurality of connecting members are attached to the hanging wall portion at a position not overlapping the slip prevention material on the back surface of the scaffolding board. 2. The scaffold cover according to claim 1, wherein the connecting member is attached to a hanging wall on one side of a long side of the cover and is connected to the hanging wall on the opposite side through the lower surface of the scaffolding plate to connect with the scaffolding plate. 3. The scaffolding plate cover according to claim 1, wherein the connecting member is attached to the hanging walls on both sides of the long side of the cover and is connected to the scaffolding plate by being connected to the lower surface of the scaffolding plate. 4. The scaffolding board cover according to claim 1, wherein the connecting member is a belt having a connecting member arranged at an end thereof. 5. The scaffolding plate cover according to claim 1, wherein the cover is formed of a flameproof water-permeable sheet.