JP2519115B2 - Gondola scaffolding equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] (Field of Industrial Application) The present invention relates to a gondola scaffolding device used for construction work.

(Prior Art) Since the outer wall surface of a building is always exposed to the external environment, it is likely to be contaminated due to the influence of wind, rain, heat, and the like. Therefore, it is necessary to regularly clean and repair the outer wall surface. When performing these works, a scaffold for repair work is built on the outer periphery of the building.

Known conventional work scaffolds are a main scaffold, a frame scaffold, and a gondola scaffold. Main scaffolds and framework scaffolds
It is assembled from the ground to surround the entire building. In addition, the gondola scaffold suspends a gondola that serves as a work floor from the roof of the building, and moves this as the work area moves.

By the way, the main scaffold and the frame scaffold described above are excellent in workability, but on the other hand, they require considerable labor and cost for assembling and disassembling, and the safety limit is about 50 m in height. In addition, since the entire outer circumference of the building is surrounded, there is a problem that the occupancy of the living room is hindered and the residents are remarkably oppressed, especially in the case of repairing the outer wall of the existing building.

On the other hand, the gondola scaffolding is suitable for high-rise buildings where it is difficult to deal with the height of the main scaffolding or the frame scaffolding, and the impact on residents is relatively small.

However, this gondola scaffold has the fate of having to move the gondola many times as the work area moves, and thus is inferior in workability to the above-described main scaffold, frame scaffold, and the like.

Therefore, a plurality of gondola scaffolds are arranged laterally along the wall surface of the building, and a gauze or sheet for protection is provided between the projecting beam that supports each gondola suspended from the roof of the building and the above gondola. There is a method in which the work area in the lateral direction is expanded by tensioning the work area to improve the work efficiency.

(Problems to be Solved by the Invention) However, in constructing such a scaffold for work, it is necessary to stretch a protective wire mesh or a sheet over substantially the entire repair work area of the building wall surface. In the case of ordinary frame scaffolds, these protective wire nets and sheets can be fixed directly to the scaffolds entirely, but in scaffolds using gondola scaffolds, it is not possible to secure sufficient locations where the wire nets and sheets can be directly fixed. . Therefore, it becomes difficult to keep the wire mesh and the sheet safe and strong under severe natural conditions such as strong winds and snow.

The present invention is intended to solve such a problem, and in a structure of a work scaffold for repairing a building wall surface using a gondola scaffold, it is necessary to minimize a stretched area of a protective net or a protective sheet. It is an object of the present invention to provide a gondola scaffolding device that can be stretched and can safely and firmly stretch a protective net and a protective sheet.

[Structure of the Invention] (Means for Solving the Problems) In order to achieve the above-mentioned object, the present invention has a plurality of projecting beams attached to the upper part of a building, and can be raised and lowered from each projecting beam through a line. A plurality of such gondola scaffolds are arranged laterally along the wall surface of the building, and the working space on each of the gondola scaffolds including the ceiling portion is protected except at least the wall surface side of the building. It is characterized by being surrounded entirely by.

(Operation) As described above, the gondola scaffolding device of the present invention is configured so that the work space on each gondola scaffold is entirely surrounded by a protective net or a protective sheet so that a fall accident from the gondola scaffolding can be protected. Therefore, unlike the conventional case, it is not necessary to stretch the protective net or the protective sheet over the entire surface of the repair work area of the building wall surface, and the stretched area of the protective net or the protective sheet can be minimized. Moreover, since the protective net or the protective sheet can be directly fixed to the gondola, the protective net or the protective sheet can be firmly stretched without requiring any special auxiliary equipment for stretching the protective net or the protective sheet. Therefore, it is possible to realize an optimal work scaffold for use especially in a situation where it is exposed to strong wind and rain such as a high-rise building.

(Example) Hereinafter, an example of the present invention will be described with reference to the drawings.

1 is a cross-sectional view for explaining the structure of a gondola scaffolding device according to an embodiment of the present invention, FIG. 2 is a perspective view showing the entire gondola scaffolding device of FIG. 1, and FIG. It is an elevation view.

As shown in these drawings, in the gondola scaffolding apparatus of the present embodiment, a suspension wire rope 20 is attached to each of a plurality of support beams 10 attached so that their tips project from the wall surface of the building 1 on the roof of the building 1. A plurality of gondola scaffolds 30 that can be moved up and down through are arranged laterally along the wall surface of the building 1.

Each of the above-mentioned support beams 10 is temporarily fixed to, for example, a parapet or the like provided on the roof portion of the building 1 at substantially equal intervals, and two suspension wire ropes 20 are connected to each of the support beams 10. The lower ends of the respective hanging wire ropes 20 are attached to a frame 31 of the gondola scaffolding 30 via hoisting machines 32 and 33, respectively. Further, all the hoisting machines 32, 33 provided on the gondola scaffolding 30 are interlocking type, and these hoisting machines 32, 33 can be operated by remote control from the rooftop, the ground or the room. . And this gondola scaffolding 30 is designed to ascend and descend along the wall surface of the building 1 while maintaining a generally horizontal state.

In addition, the gondola scaffold 30 is surrounded by a skeleton 34 using a metal pipe and the like including the ceiling portion except the building 1 side, and a protective net 35 such as a protective net or a protective sheet is provided outside the skeleton 34. Are covered. This prevents falling from the gondola scaffolding 30 and offers during rain and snowfall. Further, a guide roller 36 for smoothly moving the scaffold 30 up and down along the wall surface of the building 1 is attached to the frame 31 of the gondola scaffold 30.

Now, the first characteristic of the gondola scaffolding device of this embodiment is that the gondola scaffolding 30 is hung from the roof part of the building 1 in such a state that the gondola scaffolding 30 straddles two adjacent sides of the peripheral wall surface of the building 1. is there. As a result, the gondola scaffolding 30 due to wind etc.
It is possible to suppress the rolling of the car in some directions to such an extent that it does not pose any safety problem.

Furthermore, by increasing the number of sides of the wall on which the gondola scaffolding 30 straddles, such as 3 sides and 4 sides of the surrounding wall surface, and finally enclosing the entire circumference of the building 1 with the gondola scaffolding 30, The shaking can be suppressed in all directions to the extent that it does not pose a safety problem at all. In addition, by constructing the gondola scaffolding 30 horizontally long in this way, the working area at one movement position of the gondola scaffolding 30 is expanded, and further, the entire circumference of the building 1 is covered with the gondola scaffolding.
Surrounding with 30 makes it possible to work on a floor-by-floor basis.

The second characteristic of the gondola scaffolding device of this embodiment is that a protective net 35 such as a protective net or a protective sheet is directly stretched on the gondola scaffold 30 and the working space on the gondola scaffold 30 is ceilinged by the curing net 35. It is at the point surrounded by the whole surface including the surface. That is, since the work space itself on the gondola scaffolding 30 is entirely surrounded by the curing net 35, it is not necessary to stretch the curing net over the entire surface of the repair work area of the building wall unlike the conventional case. It is possible to minimize the stretched area of. Moreover, since the curing net 35 can be directly fixed to the gondola scaffolding 30, the curing net 35 can be firmly stretched and fixed without any special auxiliary equipment for stretching the curing net 35. Therefore, it is possible to realize an optimal work scaffold for use especially in a situation where it is exposed to strong wind and rain such as a high-rise building.

Although the work floor is provided in only one step on the gondola scaffold 30 of the above-described embodiment, a plurality of steps may be provided. Further, although the hoisting machines 32 and 33 for raising and lowering the gondola scaffold 30 are provided on the side of the gondola scaffold 30 in the above-described embodiment, it is of course possible to provide the hoisting machines 32, 33 on the side of the support beam 10.

Further, the lifting and lowering operation of the gondola scaffold 30 may be performed by the operation of the worker himself / herself who rides on the gondola scaffold 30.

[Effects of the Invention] As described above, according to the gondola scaffolding device of the present invention, the work space itself on the gondola scaffolding can be entirely surrounded by a protective net or a protective sheet to prevent a fall accident from the gondola scaffolding. Since it is configured as above, it is not necessary to stretch the protective net or protective sheet over the entire surface of the repair work area of the building wall as in the conventional case, and the stretched area of the protective net or protective sheet can be minimized. Can be suppressed. Moreover,
Since the protective net and protective sheet can be fixed directly to the gondola,
It is possible to firmly stretch the protective net and the protective sheet without requiring any special auxiliary equipment for stretching the protective net and the protective sheet. Therefore, it is possible to realize an optimal work scaffold for use especially in a situation where it is exposed to strong wind and rain such as a high-rise building.

[Brief description of drawings]

1 is a cross-sectional view for explaining the structure of a gondola scaffolding device according to an embodiment of the present invention, FIG. 2 is a perspective view showing the entire gondola scaffolding device of FIG. 1, and FIG. It is an elevation view. 1 ... Building, 10 ... Support beam, 20 ... Hanging wire rope,
30 …… Gondola scaffolding, 31 …… Stand, 32,33 …… Hoisting machine, 34 …… Frame, 35 …… Curing net.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (56) References JP-A-56-3761 (JP, A) JP-A-55-39561 (JP, A)

Claims (1)

(57) [Claims] 1. A plurality of projecting beams are attached to an upper part of a building, and a plurality of dondra scaffolds that can be raised and lowered from each projecting beam via a line are arranged in a lateral direction along a wall surface of the building. The gondola scaffolding device is characterized in that the work space including the ceiling portion on each of the gondola scaffolds is entirely surrounded by a protective net or a protective sheet except at least the wall surface side of the building.