JPH0252722B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a scaffolding device that can be erected and removed extremely safely and easily.

Until now, in order to erect scaffolding on a bridge, etc. for painting purposes, etc., first, many chains were suspended from the bridge, vertical pipes were suspended from the chains, and many horizontal pipes were stretched around the vertical pipes. After scaffolding boards were strung over these horizontal pipes, protective netting was finally strung over the entire bottom surface. Chain lowering and pipe tensioning work were extremely complicated, time consuming and troublesome work. The most important drawback was that the work was extremely dangerous since the work was done while the net was not yet installed. Furthermore, when removing a scaffold that has been erected, the net must first be removed and then the scaffolding boards, pipes, chains, etc. must be removed, which is extremely dangerous work without the net. It was hot. Similarly, the work of removing horizontal pipes, vertical pipes, chains, etc. was extremely complicated, time-consuming, and troublesome work.

An object of the present invention is to provide a scaffolding device that allows scaffolding to be easily erected and removed within a short period of time without causing any danger.

Next, a first embodiment of the present invention will be explained with reference to FIGS. 1 and 2.

FIG. 1 is a perspective view showing a first embodiment of the invention. First, two wire ropes 1, 1 are stretched in parallel. A large number of sliding tools 2, 2, . . . are attached to the two wire ropes 1, 1, respectively.
As shown in FIG. 2, the sliding tool 2 has a structure in which a clamp 5 is rotatably attached to a guide body 3 by a rivet 4. As shown in FIG. The guide body 3 is approximately
It is manufactured by rolling a shaped plate material into a cylindrical shape, and a gap 6 is formed in the center from the bottom to the top. It can be attached to the wire rope 1 by inserting it into the wire rope 1 from the gap 6 and turning it 90 degrees, so it is convenient to attach to the wire rope 1. Rings 7, 7 are attached to the upper surface of the guide body 3 at the front and rear, respectively.

The clamp 5 has a structure for attaching the horizontal pipe 8. The vicinity of both ends of the horizontal pipe 8 are attached to clamps 5, 5 of sliding tools 2, 2 which are slidably attached to two wire ropes 1, 1, respectively. In the same way, a large number of horizontal pipes 8, 8
... are attached to the left and right sliding tools 2, 2.... Then, one end of the chain 9 is attached to the ring 7 at the rear of the first sliding tool 2, and the other end of the chain 9 is attached to the ring 7 at the front of the second sliding tool 2. Regarding the sliding tools 2, 2..., adjacent sliding tools 2, 2... in the front-rear direction are connected by chains 9, 9..., respectively. chain 9,9
...are of the same length.

There is a hook 1 in the center of each horizontal pipe 8, 8...
0, 10... are attached. Hanging strings 12, 12... are attached to the center of the separate elongated sheet 11, and these hanging strings 12, 12... are hung on the hooks 10, 10... of the horizontal pipes 8, 8.... Holes 13 and 1 are provided near both ends of the sheet 11, respectively.
3... is open. While passing the ropes 14, 14 vertically in a zigzag pattern through the holes 13, 13, respectively, the portions of the ropes 14, 14 that protrude above the sheet 11 are hung near both ends of the horizontal pipes 8, 8, respectively. There is. The front ends of the ropes 14, 14 are tied to the leading horizontal pipe 8. Also,
A ring 15 is attached to the center of the horizontal pipe 8 at the top. A rear end of a front rope 16 stretched forward is attached to the ring 15, and a front end of a rear rope 17 stretched backward is also attached.

What is shown above is the horizontal pipe 8,
8... are brought to one end side, and the sheet 11 is bent and sagging, but in order to erect it, the front rope 16 can be pulled. By guiding the left and right guide bodies 3, 3 along the wire ropes 1, 1, the first horizontal pipe 8
moves forward while maintaining a state perpendicular to the wire ropes 1, 1, and after the left and right chains 9, 9 are fully extended, the second horizontal pipe 8 is also advanced in the same way, and the horizontal pipes 8, 8 are moved forward in the same manner. ...and move forward while deploying them at equal intervals. While expanding the horizontal pipes 8, 8..., place the scaffolding board 1 on top of the horizontal pipes 8, 8...
8, 18, and so on, the scaffolding device is quickly completed.

Next, in order to remove the constructed object, the rear rope 17 may be pulled rearward while removing the scaffolding boards 18, 18, . . . . The wire ropes 1, 1 are gradually retreated from the leading horizontal pipe 8 and returned to their original state, and finally the wire ropes 1, 1 are removed, and all removal work is completed.

Next, a second embodiment of the present invention will be explained with reference to FIGS. 3 and 4.

FIG. 3 is a perspective view showing the second embodiment. In the scaffold construction work, two wire ropes 1, 1 are similarly stretched in parallel. The wire ropes 1, 1 have rectangular sliding tools 2, 2, respectively.
...is hanging. The frame of the sliding tool 2 is composed of an upper frame 19 and a lower frame 20.
and are rotatably connected by rivets 21. A pulley 22 is attached to the upper frame 19, and two pin holes 23, 23, . . . are bored in the lower frame 20 on the left and right sides.
Then, while placing the pulleys 22, 22... on the left and right wire ropes 1, 1,
A large number of sliding tools 2, 2, . . . are suspended from the shaft.

A large number of vertical pipes 24 having a square cross section are prepared. Near the tip and rear end of the vertical pipe 24,
Two pin holes 25, 25, . . . are formed in each case. On the upper surface of the vertical pipe 24, clamps 5, 5 for clamping the horizontal pipes 8, 8...
...are installed at equal intervals.

The worker is in a safe place, fits the tip of the vertical pipe 24 into the lower frame 20 of the first sliding tool 2, and inserts the pin holes 25, 25 drilled near the tip of the vertical pipe 24 and the pin holes in the lower frame 20. 23, 23, and then insert the pin 26 into the pin holes 23, 23, 25, 25 and attach the tip of the vertical pipe 24. In the same manner, the rear end of the vertical pipe 24 is attached to the second sliding tool 2, and the same operation is performed on the left and right wire ropes 1, 1.

Next, the horizontal pipes 8,8
... will be installed. Hooks 10, 10... are attached to the centers of the horizontal pipes 8, 8..., respectively.

Although a separate sheet 11 is prepared, sheet 1
Suspension strings 12, 12, . . . are attached to the center of 1 at equal intervals. Holes 27, 27, . . . are formed at equal intervals near both ends of the sheet 11, respectively. Then, the hanging strings 12, 1 are attached to the hooks 10, 10... of the horizontal pipes 8, 8... attached to the vertical pipes 24, 24, respectively.
2..., and fit the holes 27, 27... drilled near both ends of the sheet 11 into both ends of the horizontal pipes 8, 8..., respectively, and the protective sheet 11 is placed on the lower side.
will be extended.

Finally, the scaffolding board 18 is placed on top of the horizontal pipes 8, 8...
Put 18 on it.

After completing the above work, push the constructed part forward along the wire ropes 1 and 2.
Attach the front ends of other vertical pipes 24, 24 to the second sliding tools 2, 2, and
Attach the rear end to the third sliding tool 2,2. The following work is a repetitive work, so the explanation is omitted, but in any case, the worker should do the erection work in a safe place, and continue the work one after another while pushing out the erected part along the wire ropes 1 and 1. The construction is then completed.

Next, to remove the structure, simply carry out the work in the reverse order of the erection work. The worker is in a safe place and is pulling back the construction part while moving the scaffolding board 18,
18..., the sheets 11, the horizontal pipes 8, 8..., and the vertical pipes 24, 24..., and finally, when the wire ropes 1, 1 are removed, the removal work is completed.

Although two embodiments of this invention have been shown above, the embodiments of this invention are not limited to those shown above. For example, although two wire ropes 1 are shown under tension, wire rope 1
You may tense three or more lines. The structure of the sliding tool 2 is arbitrary, as long as it can be attached to the wire rope 1 in a slidable manner. A part of the horizontal pipe 8 itself may be processed so that it can be slidably attached to the wire rope 1. In addition, a sliding tool 2 that can be slidably attached to the wire rope 1 is attached to the horizontal pipe 8.
It may be installed integrally with the moreover,
In Fig. 1, the horizontal pipes 8 are connected by a chain 9, and when the first horizontal pipe 8 is moved forward, the horizontal pipes 8 are unfolded with a space between them. Any string-like body, net-like body, etc. may be used in place of 9. Alternatively, each horizontal pipe 8 may be attached to the sheet 11, so that the sheet 11 also serves as a connecting member for connecting each horizontal pipe 8. When a net is used instead of the sheet 11, the net may serve as a connecting member, or when the net and the sheet 11 are used together, the net and the sheet 11 may serve as a connecting member.

The structure of the present invention is as described above, and the present invention has the following excellent effects.

In the scaffolding device according to the present invention, a large number of sliding tools 2 are slidably attached to each of two or more wire ropes 1 tensioned in parallel, and a large number of horizontal pipes 8 are attached to each of the sliding tools 2. The wire ropes 1 are placed in a state where they are stretched between the wire ropes 1 via the wire ropes 1 and spaced apart from each other. Therefore,
At the time of erection, after first tensioning two or more wire ropes 1, an operator in a safe place applies tension to each wire rope 1 through a sliding tool 2 that is slidably attached to each wire rope 1. By sliding the horizontal pipes 8, each horizontal pipe 8 can be placed between each wire rope 1 and spaced apart from each other, making the work extremely safe. It is something. Moreover, the work can be easily completed within a short time.

In addition, in order to remove the scaffold that has been erected, the worker should be in a safe place and slide each horizontal pipe 8 against each wire rope 1, and perform the removal work while moving it to one side. Since all you have to do is to do this, the removal work is safe, short and easy.

[Brief explanation of drawings]

FIG. 1 is a perspective view showing a first embodiment of the present invention, FIG. 2 is a perspective view of main parts of the first embodiment, and FIG.
The figure is a perspective view showing the second embodiment, and FIG. 4 is a cross-sectional view taken from FIG. 3. 1...Wire rope, 2...Sliding tool, 8...Horizontal pipe, 18...Scaffolding board.

Claims (1)

[Claims] 1. Two or more wire ropes tensioned in parallel, a number of sliding tools attached to each of these wire ropes so that they can slide freely, and a movement in a direction perpendicular to each wire rope by means of these sliding tools. A scaffolding device comprising a number of horizontal pipes that are stretched over respective wire ropes at intervals, and a scaffold board that is placed above the number of horizontal pipes.