JP3526112B2 - Air mat for maintenance and inspection - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a maintenance / inspection air mat, and more particularly to a maintenance / inspection air mat used for performing maintenance / inspection of a high place such as a huge bridge or amusement facility.

[0002]

2. Description of the Related Art Conventionally, when performing maintenance / inspection on the lower side of a bridge or at a recreation facility, for example, on the lower side of an artificial ski resort, maintenance / inspection work is conventionally performed on the lower side of a building C as shown in FIG. The worker P can be accommodated and the arm A
A work vehicle (not shown) having a box B movably supported by was used. That is, the building C
The work vehicle is arranged on the lower side of the vehicle, the arm A is extended, and the worker P is raised near the maintenance / inspection portion so that the worker P can perform the maintenance / inspection.

When the maintenance and inspection of the building C, for example, the looseness of the bolt is inspected, the number of the bolts is enormous. Therefore, the arm A is moved and the worker P is moved every time the position of the bolt is different. It is necessary to move the work vehicle to move the worker P when the arm A does not reach the arm A, which is an extremely time-consuming and time-consuming work.

The present invention has been made in view of the above problems, and an object of the present invention is to provide an air mat for maintenance and inspection for efficiently performing maintenance and inspection work at high places as described above.

[0005]

In order to solve the above-mentioned problems, the maintenance and inspection air mat according to the present invention has at least one means capable of injecting and discharging gas, and is provided at the bottom of a building. An air sac that can be placed on top, a pair of mats laid on the upper and lower parts of this air sac, and multiple air bags.
In order to connect the amat with a rope,
It is characterized by having a plurality of connection holes provided at the side end portions .

[0006]

1 is a side view of an embodiment of an air mat for maintenance and inspection according to the present invention, and FIG. 2 is a plan view. As is apparent from these figures, air mats M are connected in parallel. It has a structure in which two air sacs 1, 1'and a pair of mats 2, 2'are provided on the upper and lower parts of the air sacs 1, 1 '. Holes (connection means) 3 for connection are provided at the end side portions and the upper and lower end portions of the mats 2, 2 ', and the air mat M described above can be connected in parallel and in series by a plurality of ropes or the like. . Two air sacs 1, 1 ′ are provided in this embodiment, but they may be single or two or more depending on the size of the frame described later.

Each of the air sacs 1, 1'is provided with an air injection valve (means for injecting gas) 4 capable of injecting air into the air sacs 1, 1'to expand the air sacs 1, 1 '. In addition, similarly, an airtight fastener (means capable of exhausting gas) 5 for exhausting air is provided so that the air can be injected into and exhausted from the air sacs 1, 1 '. Further, as shown in FIG. 1, a safety valve 6 is provided on the side surface of the air sacs 1, 1 '.
Is provided so that the air can escape to the outside when the air pressure of the air sacs 1, 1 ′ exceeds a predetermined pressure.

The upper mat 2 is provided with a pocket 8 for inserting the shape retaining plate 7 at a predetermined position so that an operator can easily walk on the mat 2 and can work. Has become.

In this embodiment, as described above, the airtight fastener 5 is provided so that the air can be quickly exhausted. However, it is not always necessary to provide such an airtight fastener, and the valve described above can be used. It is also possible to evacuate by means of 4. That is, the valve 4 may be a supply / exhaust valve (means capable of injecting and exhausting gas).

Also, in this embodiment, the air sacs 1, 1 '
Is a cylinder, but may have a shape such as a square or a rectangle.

Next, the operation of the above air mat will be described.

On the back surface (lower side) of the building as described above, there is generally provided a frame 9 which is incorporated in a quadrangle for maintaining strength (see FIGS. 4 and 3). A net 10 is stretched at the bottom of the square frame 9 and the air matte M is carried onto the net 10. At this time, air is not injected into the air sacs 1, 1'of the air mat M, and the air mat can be carried up in a folded state.

After connecting the plurality of air mats M to each other by connecting the ropes to the connecting holes 3 provided at the side ends of the mat 2'provided at the lower part of the air sacs 1, 1 ', the upper mat is further provided. Similarly, after connecting the connecting hole 3 provided at the side end portion of 2 with a rope, a compressor (not shown) is connected to the air injection valve 4 to inject air and expand the air.

The frame 9 of such a structure has a size of, for example, 24 m × 9 m. In this case, the length of the air matte M in the longitudinal direction is 4.5 m and the length in the lateral direction is 3 m.
When m is set, eight air mats M are prepared in the longitudinal direction of the frame 9 and a total of 16 air mats M in two rows in the lateral direction are prepared and connected in series and in parallel.

The air sacs 1, 1'by injecting air as described above.
When the mat is inflated, the mats 2 and 2 ′ are mutually pulled by the adjacent air mats M, so that a place where a worker works can be secured on the frame 9. At this time, a pocket 8 into which the shape-retaining plate 7 is inserted may be provided at a predetermined position in the mats 2 and 2 '. In this case, by inflating the air sacs 1 and 1'and then inserting the rigid shape-retaining plate 7 into the pocket 8, the worker's feet become firm and the efficiency of walking and working is improved. In this embodiment, the pockets 8 are provided in the longitudinal direction and the lateral direction, and the shape-retaining plate 7 is arranged in a square shape, but it is obvious that the present invention is not limited to this.

After the worker finishes the maintenance and inspection work on the air mat M in this way, the air in the air sacs 1, 1'is exhausted, for example, by opening the airtight fastener 6, and then the rope is connected. The air mats M are removed from the holes 3 and the respective air mats M are lowered from the net 10.

[0017]

As described above, according to the maintenance / inspection air mat of the present invention, a net is provided on the frame provided at the bottom of the building, and the net is placed on the net to connect a predetermined number. Since it is expanded to form a scaffold, there is an advantage that the maintenance and inspection work of the lower part of the building can be efficiently performed. Also, when the air is exhausted,
Since it is foldable, it can be easily carried to the net, and when maintenance work is not performed, the air mat can be folded and squeezed, which is good for storage and transportation. It has the advantage of having an effect.

[Brief description of drawings]

FIG. 1 is a front view of an embodiment of the present invention.

FIG. 2 is a plan view of the above embodiment of the present invention.

FIG. 3 is a schematic view showing a usage state of the above embodiment.

FIG. 4 is an explanatory diagram showing a conventional maintenance inspection work.

[Explanation of symbols]

1 air bag 2 mat 3 connection holes 4 Air supply valve 5 Airtight fastener 6 Safety valve 7 Shape plate 8 pockets 9 frames 10 net M air mat

Claims (3)

(57) [Claims] 1. An air sac having at least one means capable of injecting and discharging gas, which can be placed on a net provided at the bottom of a building, and a pair of mats laid on the upper and lower parts of the air sac. , Allows multiple air mats to be connected with a rope
Therefore, a plurality of connection holes provided at the side end of the mat
An air mat for maintenance and inspection characterized by having and . 2. An air mat for maintenance and inspection according to claim 1 , wherein the air bag has an airtight fastener as a gas discharging means. 3. A contract wherein the mat provided on the upper part is provided with a pocket into which a shape retention plate can be inserted.
An air mat for maintenance and inspection according to claim 1 or 2 .