JPH0427074A - Mounting method of curing net for gondola work - Google Patents

Abstract

PURPOSE:To suppress a construction cost by fixing the upper end of a curing net to a net bearing mar mounted to the rear side of a gondola, and providing both side ends of a net to a guide member positioned to both outsides of the gondola so that it is capable of moving. CONSTITUTION:Guide wires 18 are constructed on the outside wall 2 in the direction of up and down. After that, a gondola 8 of a gondola device 4 is placed between the wires 18 and 18, and it is suspended with wire ropes 10 having each end of them fixed to projecting beams 12. Then, the upper end of a curing net 22 is fixed to a heading joint member 16 combined with the gondola 8 with a whip. In addition, eyelets of both side ends of the net 22 are connected to the wires 18 with 8-shaped clips 24 so that they are capable of sliding.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a method for attaching a protective net to a wall surface of a building when various works are carried out using a gondola that moves up and down along the wall surface of a building.

[Prior Art] Conventionally, when using gondolas to perform various types of work on the walls of buildings, brackets were attached to the upper and lower parts of the building, and the upper and lower ends of the protection net were attached to these brackets, respectively.
A structure in which a protective net is stretched over the entire wall surface is generally used.

[Problem to be solved by the invention]

However, with the above-mentioned mounting structure of the curing net, even if the curing part that is actually required is only a part of the wall surface, such as when repair work is being carried out at a relatively low location and with little scattering of dust and debris, the curing net can be covered over the entire wall surface. In order to erect the net, a great deal of time and effort is required to install and remove the protective net, and a large amount of construction material is required, resulting in an increase in construction costs. In particular, an increase in the construction area is not at all desirable because it impedes prompt removal work in emergencies such as strong winds or fire outbreaks.

Furthermore, in conjunction with this, according to the conventional mounting structure of the protection net, even if the work is done only partially on the wall, the installation of an exaggerated protection net is required, resulting in various secondary inconveniences. ing. In other words, the entire wall gives the impression that the building is under construction both externally and internally, which may hinder business operations inside the building. Furthermore, if billboards, banners, etc. are installed on the outside of the wall, it is naturally expected that their advertising function will be impaired. Furthermore, even if the gondola work is completed, the protective nets usually cannot be removed until the entire work is completed, which can leave people in the building feeling cramped for a long time.

The present invention has been made in view of the problems and situations of the prior art, and the problem to be solved is to make the work place on the gondola and the lower part thereof a necessary curing range, and to The purpose of the present invention is to allow the net to be moved in accordance with the rise and fall of the gondola, to reduce the work cost associated with erecting the protective net, and to enjoy the visual and psychological advantages of always keeping the erecting range of the protective net to the necessary minimum.

[Means to solve the problem]

In order to solve the above problems, the present invention includes a net support member attached to the back side of a gondola that can go up and down along the wall surface of a building, and a net support member that is located on both outer sides of the gondola toward the wall surface and that and a guide member disposed along the vertical direction, the upper end of the curing net is fixed to the net support member, and both end portions of the curing net are movably attached to the guide member.

[Effect]

In the present invention, the upper end of the curing net is fixed to the net support member integrated with the gondola, and both end portions of the curing net are guided vertically freely by both guide members on the wall of the building. Therefore, when the gondola is moved up and down, the entire curing net moves up and down together with the gondola. Therefore, the protection range provided by the curing net is always the gondola's current work area and the area covered by the curing net below it, and operations such as drilling, pouring, replacing seals, and replacing tiles are prohibited. This can be done by rearranging each section of the wall. Additionally, as the work progresses and the gondolas are dismantled, the area where the protective nets will be erected will also shrink, resulting in the appearance of being shielded by the exaggerated construction of the nets.

It also minimizes psychological pressure.

〔Example〕

An embodiment of the present invention will be described below with reference to FIGS. 1 and 5 of the accompanying drawings.
This will be explained based on the diagram.

In FIGS. 1 to 4, 2 indicates an outer wall (wall surface) of a building, and 4 indicates a bracket type gondola device.

The gondola device 4 includes a bracket 6 (see FIG. 3) protruding from the outer wall 2 at a predetermined height, a working gondola 8, and wire ropes 10 and 1 for hanging the gondola 8.
0, a projecting beam 12.12 that supports the wire ropes 10 and 10 in a movable manner, and elevators 13.13 attached to both sides of the gondola 8. Projection beam 12,1
2 is formed in a substantially U-shape, and is fixedly installed on the roof parapet 2a in a state of protruding outward.
One end of the wire lobes 10, 10 is fixed to the wire lobes 2, and the other ends of the wire lobes 10, 10 are respectively connected to the elevators 13, 13 so as to be able to be wound around them. As a result, the gondola 8 is suspended from the rooftop along the outer wall 2, and a worker can perform predetermined work on the gondola 8 while operating the switch of the elevator 13, 13.

On the other hand, on the back side of the central part of the gondola 8, that is, on the side far from the outer wall 2, a sinusoidal support 14, which is taller than the height of the gondola 8, is erected by bolting. A head joint member 16 of a predetermined length is laterally bolted to.

The height of the support column 14 is determined in consideration of the degree of upward scattering of debris and the like due to work. Further, the length of the head joint member 16 is made approximately the same as the length of the gondola in the direction parallel to the wall surface, taking into consideration the slackness of the curing net, which will be described later. Here, the support column 14 and the head joint member 16 constitute a net support member.

On the other hand, on the parapet 2a, at a predetermined position outside the projecting beams 12, 12, that is, at a predetermined position farther than the projecting beams 12.12 when viewed from the gondola 8, a guide wire 18.
One end of the parapet 18 is connected to the circular rings 20, 20 inside the parapet 2a, respectively.

The other end of each guide wire 18 is directly guided to the outside of the outer wall 2 and suspended, connected to the bracket 6 and tensioned by a turnbuckle 21.

A head joint member 16 integrated with the gondola 8 and guide wires 18 and 18 located on both sides of the gondola 8
A mesh-like curing net 22 is attached between the two. That is, the upper end of the curing net 22 is bound to the head splicing member 16 with wire, and a plurality of figure-of-eight clips 24. ..., 24, both ends of the curing net 22 are connected at predetermined intervals. As shown in Figure 5, each figure-of-eight clip 24 is formed by bending a hard steel wire into a figure-eight shape, and the ends are closed by matching the hooks. After it is opened and the guide wire 18 is loosely inserted into one hole, it is passed through the eyelet 22a of the curing net 22, and the edge of the net is placed in the other hole, and the hook alignment is closed (see the state shown in FIGS. 1 and 4).

Thereby, the curing net 22 can be slid up and down with respect to the guide wires 18 and 18.

In addition, the total length W in the horizontal direction of the curing net 22 (
The guide wires 18 and 18 are positioned in accordance with the guide wires 18 and 18 (see FIG. 2) to prevent the curing net 22 from loosening. In other words, when the curing net 22 is viewed from the vertical direction, it is stretched in an inverted trapezoidal shape with the wall surface 2, as shown in FIG. 2, and the gaps between both ends and the outer wall 2 are extremely small. ing.

Here, the length of the curing net 22 in the vertical direction covers a desired curing range.

Next, the effects of this embodiment will be explained.

First, when installing the curing net, guide wires 18.18 are vertically installed at desired positions on the outer wall 2, and then the gondola device 4 is installed at a position between the guide wires 18.18. Then, the upper end of the curing net 22 is fixed to the head joint member 16 integrated with the gondola 8 with a wire,
Furthermore, eyelets 22a at both ends of the curing net 22,
... 22a with figure 8 clip 24. . . , may be slidably connected to the guide wire 18, 18 at 24.

Furthermore, in the gondola work, when the worker sets the gondola 8 to a predetermined height, the curing range for the wall surface 2 at that point becomes the work range on the gondola 8 and the net construction range below it. When the worker lowers the gondola 8 according to the progress of the work, both ends of the curing net 22 descend while being guided by the guide wires 18 and 18, so that the curing net 22 and the gondola 8 eventually fall together. descend as one. The curing range after this lowering is also the working range on the gondola 8 and the range below it. Assuming that there is no need for curing the area where the work has been completed,
As the gondola 8 descends, the protection net 22 is automatically removed. The lower end of the curing net 22, which has finished curing the upper part in this way, is naturally folded onto the bracket 6.

Furthermore, when the series of work accompanying the descent of the gondola 8 is completed, work on adjacent or other walls can be performed in the same way by replacing the gondola device 4 and the curing net 22 as necessary. .

Therefore, the mounting structure of the curing net 22 of this embodiment is suitable for exterior wall repair work (drilling, pouring, replacing seals, replacing tiles, etc.) at a relatively low location and with little dust. .

In this way, according to this embodiment, there is no need to erect a protective net over the entire outer wall 2 as in the conventional case, and the gondola device 4 and the protective net 22 can be easily attached to the necessary portions of the outer wall 2. , and because the gondola device 4 and the curing net 22 can be replaced as necessary,
Even if the entire outer wall 2 is repaired, the required minimum curing range will always be covered. For this reason, compared to the case where a curing net is erected over the entire wall surface, fewer curing nets are required, reducing the cost of construction materials, and at the same time, the cost of work required to install and remove the curing net is also significantly reduced. Furthermore, even in emergencies such as strong winds or fire outbreaks, only a small amount is required to be removed, so the removal work is smooth and has a low risk, helping to minimize damage.

Furthermore, as a secondary advantage, since the entire building does not appear to be under construction, it is advantageous, for example, for renovation work to be carried out in parallel with business operations inside the building.

Furthermore, if there is a signboard or hanging curtain on the wall, the loss of advertising function can be minimized.

Furthermore, the feeling of pressure given to people inside the building by the protective net during work is reduced.

Note that the net support member in the present invention is not limited to the T-shaped member installed on the back of the gondola 8 as described above, but the upper end of the curing net 22 is provided in consideration of the scattering of debris due to work. Any material may be used as long as it can be raised higher than the height of the gondola 8 by that amount and can support the gondola without loosening at least in the longitudinal direction of the gondola. For example, it may be a plate-shaped material or a frame.

Further, the guide member in the present invention is not limited to a wire, but may be a rail, for example, and both ends of the curing net may be connected to the rail via a sliding member.

Further, the gondola of the present invention is not limited to the bracket type as in the above embodiments, and can be similarly applied to a gondola configured to perform work from the ground. The member may be fixed on the ground with an anchor or the like.

〔Effect of the invention〕

As explained above, the present invention includes a net support member attached to the back side of the gondola, and guide members located on both sides of the gondola facing the wall surface and arranged along the vertical direction of the wall surface, and The upper end of the net is fixed to the net support member, and both ends of the curing net are movably attached to the guide members, so that the curing net moves up and down together with the gondola as the gondola moves up and down, and the curing net is able to protect the net. Since the range is always the working position on the gondola and the position below the gondola, it is especially effective for work in relatively low places with little scattering of dust and debris, and for such work, conventional There is no need to erect a protective net over the entire wall surface, and by replacing it as necessary, you can always protect only the necessary area, which greatly reduces the time, materials, and labor required to erect a protective net. Cost can be reduced.

Further, according to the present invention, since the amount of the protective net to be erected is small, removal work in emergencies such as strong winds or fire outbreaks becomes easier, which contributes to preventing the spread of damage. Furthermore, compared to constructing the entire wall surface, it is advantageous both visually and psychologically when repair work is carried out in parallel with business operations within the building.

[Brief explanation of drawings]

FIG. 1 is a partial perspective view showing an embodiment of the present invention, FIG. 2 is an explanatory diagram showing the positional relationship of the curing net when FIG. An explanatory diagram showing the positional relationship of the curing net when viewed from the side, FIG. 4 is an explanatory diagram showing the connected state of the guide wire and the curing net,
FIG. 5 is a plan view showing the figure 8 clip. Main symbols in the figure are 2...Outer wall, 4...Gondola device, 8...Gondola, 14...Strut, 16...Head joint member, 18...Guide wire, 22... -Cure net 24... figure 8 clip.

Claims (1)

[Claims] (1) A net support member attached to the back side of the gondola that can be raised and lowered along the wall of the building, and guide members located on both outsides of the gondola facing the wall and arranged along the vertical direction of the wall. A method for attaching a curing net for gondola work, characterized in that an upper end of the curing net is fixed to the net support member, and both end portions of the curing net are movably attached to the guide member.