JPH09310482A - Workbench - Google Patents

Abstract

PROBLEM TO BE SOLVED: To save labor by forming an air chamber to be a mat main body out of high strength and airtight material, providing pockets for stepboard, and inserting stepboards in the pockets. SOLUTION: An air chamber is formed by the use of a material of lightweight, high strength, and airtightness such as nylon plain weave urethane coated cloth, so as to form a mat main body. An air valve 4, a pressure regulating valve, and pockets 10 for stepboard are provided on the upper part of the mat main body, so as to form an air mat 1. When a workbench is assembled, air is injected into the mat main body through the air valve 4, and it is swelled into a cylindrical shape. The side part of the mat main body is covered with a cover, reinforcing bodies are wound around in the circumferential direction at proper intervals, and a connecting loop is provided on the reinforcing bodies. Further a plurality of the mat main bodies are connected together through the connecting loop, and step boards 3 are inserted into the stepboard pockets 10.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a workbench installed at a construction work site.

[0002]

2. Description of the Related Art When performing various works such as finishing work and repair work at a high place of a structure such as a building, the work place has a height of 2
When it is more than m, a work floor is provided by assembling scaffolding to prevent the risk of a fall or a flight collapse, and when it is difficult to provide a work floor, a net is put up and workers are It is legally obligatory to take measures such as using a safety belt and to install lifting equipment when the work area exceeds 1.5 m.

Conventionally, scaffolds have been generally used as such a risk prevention means, and frame scaffolds, pipes, scaffold plates, etc. are combined as a scaffold for workers and scaffolds for work, and these are constructed for each work. .

[0004]

Problems to be solved by the invention include, for example, small rooms in buildings, walls such as stairs and pits, ceiling finishing work, inspection and finishing of high-altitude structures, There are repair work such as repainting, and work that requires a second layer of scaffolding due to high beam height in the above work environment, but the first work is at a height of 2.5 m to 3.0 m. The second work is a small work and a simple work.

Even in the case where the work is limited to a height slightly exceeding 2 m or the work is simple with a small amount, a scaffolding similar to that in the case of the work having a large amount of work and a high degree of difficulty is set up. This is uneconomical because the cost of temporary work such as temporary labor and material costs is higher than the cost of this work.

Further, the work itself for constructing the scaffold is dangerous, and there is a problem in that the scaffold must be constructed with such a danger even for a small amount of simple work.

The object of the present invention is to eliminate the inconvenience of the conventional example, to easily carry in and out of a narrow place or a high place, to easily handle at a high place, and to reduce the risk of assembling work. Compared to the case of using temporary materials, the amount of materials to be handled can be reduced.Especially for small work, it is suitable for simple aerial work. The purpose of the present invention is to provide a workbench that can significantly reduce the labor, reduce the cause of accidents as the work load decreases, and improve safety.

[0008]

In order to achieve the above-mentioned object, the present invention is an air mat constituting a workbench, wherein the air mat is made of a high-strength and air-tight material to form an air chamber serving as a mat main body, A foot pocket is provided on the top of the mat body,
Inserting a footboard into the pocket, forming a mat main body that is an air chamber into a cylindrical shape, providing a connecting member on the side of the mat main body, and connecting a plurality of mat main bodies through this connecting member. The gist of the present invention is to provide a footboard on the upper surface so as to straddle a plurality of mat main bodies, and that the mat main body has a height of at least 1.5 m.

Further, in the net constituting the workbench, the net is formed of a lightweight and high strength fiber rope to form a frame rope and a lower rope net, and a high strength catch net is stretched on the lower rope net. The main idea is to combine an air mat on the top of the net.

According to the first aspect of the present invention, since the workbench is composed of the air mat, it is lightweight and can be easily assembled and disassembled by simply injecting and discharging air at the use site. The work amount of the work is reduced, and the risk associated with these works is also reduced. The carrying-in / carrying-out can be folded compactly so that the carrying work is easy.

Further, since the mat body is made of a high-strength and air-tight material, and the footboard is provided on the upper part, it has sufficient strength for light work and walking on it and is safe. Furthermore, the amount of materials is reduced compared to conventional scaffolds.

According to the second aspect of the present invention, in addition to the above action, the mat body is formed in a cylindrical shape, and a connecting member is provided on a side portion of the mat body, and a plurality of mats are provided through the connecting members. By connecting the main bodies and providing a footboard on the upper surface so as to straddle a plurality of mat main bodies, an air mat having a size and shape that meet the conditions of the site can be obtained.

According to the present invention as set forth in claim 3, in addition to the above-mentioned action, the mat body has a height of at least 1.5 m. It is possible to deal with work at heights where installation of lifting equipment is obligatory.

According to the present invention as set forth in claim 4, since the workbench is composed of a net, it can be used as a work scaffolding only by stretching it, and the scaffolding is easier to assemble than a conventional scaffolding. It has a sufficient function as a work scaffold for light work such as not loading a large amount of materials on it. Further, the work of carrying in, carrying out, assembling, and disassembling is easy, and in these works at high places and ultra high places, labor can be saved and the work amount can be reduced, so that the risk associated with the work is also reduced.

Further, since the rope net and the catch net have high strength, it is possible to secure the safety of walking and light work on the rope net and catch net.

According to the fifth aspect of the present invention, in addition to the above action, a higher safety can be secured by combining an air mat on the upper part of the net, and when the height is insufficient with the air mat alone, it is easy. I can deal with it.

[0017]

Embodiments of the present invention will be described below in detail with reference to the drawings. 1 is a plan view showing a first embodiment of the present invention, FIG. 2 is a side view of the same as above, and FIG.
In the figure, 1 indicates an air mat as a workbench at a high place,
The mat body 2 and the footboards 3 provided on the upper and lower portions of the mat body 2 are used.

The mat body 1 is made of a lightweight material with high strength.
An airtight material such as nylon plain weave urethane cloth is used to form a cylindrical air chamber having a diameter of 1500 mm and a length of 4100 mm, and an air valve 4 and a pressure adjusting valve 5 are provided on the upper part.

The side portion of the mat body 1 is covered with a cover 6, and a reinforcing band 7 is wound around the circumferential direction at appropriate intervals, and a connecting loop 8 is provided on the reinforcing band 7. The cover 6 is made of lightweight and high-strength material such as Tetoron plain woven cloth, and the reinforcing band 7 and the connecting loop 8 are 44 × 2 nylon cedar woven flat strips.

A plurality of mat main bodies 1, two in the illustrated example, are arranged side by side and connected through a connecting loop 8, and a sheet shape using a tetron plain woven cloth on the upper part so as to straddle both mat main bodies 1 and 1. The tread plate 3 is attached by a fastener 9 such as an eyelet, and the tread plate 3 is provided with a tread pocket 10 using a nylon plain weave urethane cloth. The foot pockets 10 are arranged, for example, in the lengthwise direction of the mat body 1 with a large size of 440 x 1745 mm provided at three places at intervals, and a small size of 440 x 1025 mm between the large size ones. 2
Provide at opposite positions one by one.

By the way, the strength of nylon plain weave urethane cloth is shown in the following table.

[0022]

[Table 1]

Next, the usage will be explained. The air mat 1 is carried into a work place at a high place in a state where the air inside the air chamber is evacuated, and the air is blown from the air valve 4 by a compressor to the mat body 1.
Pour into the inside and inflate. At this time, since the air mat 1 is made of a lightweight material, it is easy to carry in.

The mat body 2 has a cylindrical shape by itself,
By connecting a plurality of these, a work table having a trapezoidal shape is formed as a whole, which is installed at a work place, and the tread body is inserted into the tread pocket 10. As a result, it becomes possible to walk and work on the cylindrical mat body 2 in a stable state.

In this state, since the diameter of the cylinder is 150 mm, it is legally required to install this air mat 1 as a workbench at a work place of 1.5 m or more where the installation of lifting equipment is legally required. The regulations of can be cleared.

Considering the strength of the air mat 1, the work suitable for being carried out on the air mat 1 is, for example, a height of 2.5.
Finishing work on walls, ceilings in small places such as small rooms, stairs, pits, etc. in a small room of about m to 3.0 m, ceiling piping, wiring, equipment installation work in small places such as small rooms, stairs, pits, etc. For light work at a height of about 2.5 m to 3.0 m,
For such work, the mat body 2 is made of a high-strength and air-tight material, so that sufficient strength can be secured and it is safe.

Although the air mat 1 is used as a work table for light work in high places in the first embodiment, a net may be used as the work table in the second embodiment. The net 11 is a combination of a high-strength rope and a conventional net for preventing fall and scattering and falling, and as shown in FIG. 5, for example, a square frame rope 12 of 9000 mm × 6000 mm is provided with vertical and horizontal intervals of 200 mm. The rope net 13 is stretched over to the lower layer, and a high-strength catch net 14 is placed on the lower rope net 13.
Was stretched.

In the figure, 15 is an intermediate rope, 16 is a hand rope, and the frame rope 12, the intermediate rope 15 and the hand rope 16 are all lightweight and high strength fiber ropes, for example, a dyneema with a diameter of 14 mm is used. A 6 mm diameter Dyneema is used for the net 13. The tensile strength of the frame rope 12, the intermediate rope 15, and the handbar rope 16 are 5,760 kg, and the knot strength of the rope net 13 is 970 kg.

The catch net 14 uses, for example, a hexagon net having twice the strength of a normal Russell net. This has a hexagonal mesh shape as shown in FIG. In consideration of falling objects, etc. and the stepping of workers when walking, the force acting on the net thread is evenly distributed, the weight is reduced with the same strength, and the mesh change is small. , Increased flexibility for the expansion and contraction of the net.

Next, the usage will be described. For example, as shown in FIG. 7, the net 11 is stretched over a steel frame 17 at a high place,
Work on this. Considering the strength of the net 11, suitable work to be performed with this net 11 is, for example, inspection / repair work of high-rise structures, painting of high-rise structures (touch-up, full repainting) work, walls of high-rise structures, It is a simple work that does not apply a heavy weight to the net 11, such as work such as ceiling caulking, light work that uses a small amount of materials for high-altitude structures, and is performed by a small number of people.

Although the air mat 1 and the net 11 can be used alone as described above, they can also be used in combination as shown in FIG. 7. In this case, the net 11 is stretched in advance. The work is performed on the lower surface, and after the work on the lower surface is completed, the air mat 1 is inflated on the net 11, and the work on the upper surface is performed.

As a result, the number of temporary scaffolds can be reduced and the work for assembling the temporary scaffolds can be saved.

[0033]

As described above, since the workbench of the present invention is lightweight and can be folded compactly when not in use, it can be easily carried in and out of a narrow place or a high place, and is made of a soft material. It is possible to prevent damage due to collisions with the finished parts of structures during transportation, and to significantly reduce post repairs using temporary materials.

Handling at high places is easy and the risk of assembling and dismounting work can be reduced, and the amount of materials to be handled can be reduced compared to the case where conventional temporary materials are used. Especially, a large amount of material is loaded on the workbench. Suitable for simple and light work in high places with a small amount, and for work in ultra-high places, labor can be saved significantly compared to the case where conventional temporary materials are used, and the cause of accidents due to a decrease in work volume Can be reduced and safety can be improved.

[Brief description of drawings]

FIG. 1 is a plan view showing a first embodiment of a workbench of the present invention.

FIG. 2 is a side view showing the first embodiment of the workbench of the present invention.

FIG. 3 is a front view showing the first embodiment of the workbench of the present invention.

FIG. 4 is a perspective view of an essential part showing the first embodiment of the workbench of the present invention.

FIG. 5 is a plan view showing a second embodiment of the workbench of the present invention.

FIG. 6 is a plan view of an essential part showing a second embodiment of the workbench of the present invention.

FIG. 7 is a front view showing an example of use of the workbench of the present invention.

[Explanation of symbols]

 1 ... Air mat 2 ... Mat body 3 ... Tread plate 4 ... Air valve 5 ... Pressure adjusting valve 6 ... Cover 7 ... Reinforcing band 8 ... Connecting loop 9 ... Eye eye 10 ... Tread pocket 11 ... Net 12 ... Frame rope 13 ... Rope net 14 … Catch net 15… Intermediate rope 16… Hand stick rope 17… Steel

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Shunji 6-1, Tabata 6-1, Kita-ku, Tokyo Yokogawa Construction Co., Ltd. (72) Inventor Satoshi Hishida 6-1 Tabata, Kita-ku, Tokyo Horizontal Kawa construction Co., Ltd.

Claims (5)

[Claims] 1. An air mat constituting a workbench, wherein the air mat is made of a high-strength and airtight material to form an air chamber which serves as a mat body, and a step board pocket is provided on an upper portion of the mat body, and the air pocket is provided in the pocket. A workbench that features a tread. 2. A mat main body which is an air chamber is formed in a cylindrical shape, a connecting member is provided on a side portion of the mat main body, a plurality of mat main bodies are connected through the connecting member, and the mat main body is straddled over the plurality of mat main bodies. The workbench according to claim 1, wherein a tread plate is provided on the upper surface so as to rise. 3. A workbench according to claim 1, wherein the mat body has a height of at least 1.5 m. 4. A net constituting a workbench, which comprises a frame rope and a lower-layer rope net made of lightweight and high-strength fiber rope, and a high-strength catch net is stretched on the lower-layer rope net. A workbench characterized by that. 5. The workbench according to claim 1, wherein an air mat is combined with the upper part of the net.