JPH1018582A - Scaffold device for temporary work - Google Patents

Abstract

PROBLEM TO BE SOLVED: To eliminate the need of a crane, to make as many operators as possible onboard, to enable arbitrary moving operation by an operator, and to realize safe work on both front and rear sides of a pile and so on. SOLUTION: A pair of platforms 12 and 12 for scaffold with the predetermined length are arranged in parallel with a prescribed interval and their both ends are connected to each other, and a winch 16 is fixed onto the platforms 12 for scaffold. Moreover, a suspended support 11 is provided which is fixed to a gondola 15 constituted by providing a safety rail on the outer cirucmferential edge of the platforms 12 for scaffold and in the neighborhood of the upper end of a pile 11 or the like stood on the ground or the like and inserted into a separation part between the platforms 12 and 12 for scaffold, for connecting the end of a cable 17 such as a wire rope extending from the winch 16.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a scaffolding device for temporary construction, and more particularly, to a temporary construction of a construction road, a pier, a work stage and the like in civil engineering and construction work.
It is used as a scaffold for performing various operations such as attaching and detaching braces or cross beams between pillars or piles of erect steel beams or the like.

[0002]

2. Description of the Related Art Scaffolds in construction and civil engineering work occupy an important factor in the progress of construction work, and how to build scaffolds is a key to safe and smooth construction. Therefore, in the field of construction, a method such as surrounding the building with a solid scaffolding frame has been adopted, and measures to prevent falling objects by covering a safety net around the scaffolding frame have been adopted. However, it is no exaggeration to say that scaffolding frames are relatively neglected in the field of civil engineering.

[0003] That is, as shown in FIG. 11, a conventional scaffold for civil works is constructed by sequentially projecting a stage 7 on a sloped land E and constructing it between columns or piles 1 of H-section steel or the like standing on the site. In order to attach a brace or a cross beam at a predetermined height from the ground, a worker attaches a scaffold plate 5 suspended by a wire rope 4 to a crane 3 of a crane truck 2 arranged on the ground. 6 is mounted to work from one side of the pile 1. This scaffold plate 5 is a simple one in which a plate is stretched over a rectangular frame or the like created at the work site in an emergency, and has no safety fence or any danger prevention equipment.

[0004]

Therefore, the scaffold plate 5
This is extremely dangerous because there is no fence guard or the like when performing the work above, and the work is hindered by the scaffold plate 5 being swung up by gusts or the like due to suspension by wire ropes.

[0005] Further, since the scaffold plate 5 is below the stage 7 and cannot be seen by a crane operator,
Monitoring personnel for communication or signaling between the crane operator and the worker 6 are required, and even if the scaffold plate 5 is to be moved, the worker 6 cannot perform the desired movement, and does so. Took time.

Further, since the work is performed by shifting the scaffold plate 5 to one side of the pile 1, when work is to be performed on both sides of the pile 1, the scaffold plate 5 is moved up and down and the same work is performed again. Requires twice as much work time.

[0007] In addition, the scaffold plate 5 is prepared on the spot, and cannot be made too large and heavy due to suspension with one wire rope 4.
The work was not able to progress quickly because the space was small and the number of workers and equipment that could be boarded was limited.

In view of the above-mentioned circumstances, the present invention does not require a crane truck, allows a large number of workers to board and allows the workers to move freely, and furthermore, also on the front and rear sides of a pile or the like. An object of the present invention is to provide a scaffolding device for temporary construction that can work safely.

[0009]

According to a first aspect of the present invention, a pair of scaffolding base plates having a predetermined length are arranged in parallel at a predetermined distance from each other, and both ends of the scaffolding plate are connected to each other. While connecting, fix the winch on the scaffold base plate,
A gondola with a safety fence erected on the outer peripheral edge of the scaffold base plate, and fixed near the upper end of the working part such as a stake that is erected on the ground and inserted into the separated part of the scaffold base plate The present invention also provides a scaffolding device for temporary construction, comprising: a suspension support for connecting a cable end extending from the winch.

Therefore, since the gondola is supported by a pile or the like, a crane truck is not required, and a large number of workers and equipment can be placed by setting a scaffold base plate so as to sandwich a plurality of piles. By operating the winch on the gondola, the operator can freely move and operate, and also can safely work on both front and rear sides such as a pile.

According to the second aspect, a pair of scaffold base plates of a predetermined length are arranged in parallel at a predetermined distance from each other, and both ends are connected, and a winch is fixed on the scaffold base plate.
A gondola with a safety fence erected on the outer peripheral edge of the scaffold base plate, and fixed near the upper end of the working part such as a stake that is erected on the ground and inserted into the separated part of the scaffold base plate The present invention also provides a scaffolding device for temporary construction, which comprises a hanger that is movable in the horizontal direction and connects a cable end extending from the winch.

Accordingly, since the gondola is supported by a pile or the like, a crane truck is not required, and a large number of workers and equipment can be placed by setting a scaffold base plate so as to sandwich a plurality of piles. The operator can operate the winch on the gondola to move freely, and also can work safely on both the front and rear sides of the pile, etc., and the hanging support can move in the horizontal direction. Changes in span can be easily handled.

According to a third aspect of the present invention, a pair of scaffold base plates having a predetermined length are arranged in parallel at a predetermined distance from each other, and both ends are connected, and a winch is fixed on the scaffold base plate. A first gondola in which a safety fence is erected on the outer peripheral edge of the scaffold base plate; and a working part such as a pile that is erected on the ground or the like and inserted into the separated portion of the scaffold base plate. A pair of a suspension support fixed to the vicinity of the upper end and connecting a cable end extending from the winch and a scaffold base plate of a predetermined length, which is disposed so as to be able to ascend and descend by a winch fixed to the lower surface of the gondola. A second structure in which safety fences are erected on the outer peripheral edge of the base plate for scaffolding while being parallel at a predetermined distance and connected at both ends.
To provide a scaffolding device for temporary construction consisting of a gondola.

Therefore, since the gondola is supported by a pile or the like, a crane truck is not required, and a large number of workers and equipment can be placed by setting a scaffold base plate so as to sandwich a plurality of piles. The operator can operate the winch on the gondola to move freely, and also can work safely on both front and rear sides such as piles. Improve significantly.

According to the fourth aspect, a pair of scaffold base plates having a predetermined length are arranged side by side at a predetermined distance, and both ends are connected, and a winch is fixed on the scaffold base plate.
A first gondola having a safety fence erected on the outer peripheral edge of the scaffold base plate, and an upper end of a working part such as a pile erected on the ground or the like and inserted into the separated portion of the scaffold base plate A hanging support fixed to the vicinity, connecting a cable end extending from the winch and capable of moving in the horizontal direction, and a scaffolding stand having a predetermined length, which is disposed so as to be able to move up and down by a winch fixed to the lower surface of the gondola. Temporary construction consisting of a second gondola with a pair of boards arranged in parallel at a predetermined distance and connecting both ends, and a safety fence erected on the outer peripheral edge of the base plate for scaffolding Provide a scaffolding device.

Therefore, since the gondola is supported by a pile or the like, a crane truck is not required, and a large number of workers and equipment can be placed by setting a scaffold base plate so as to sandwich a plurality of piles. The operator can operate the winch on the gondola to move freely, and also can work safely on both the front and rear sides of the pile, etc., and the hanging support can move in the horizontal direction. The change in span can be easily dealt with and the gondola is arranged in two stages, so that workability is remarkably improved.

[0017]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of a scaffold for temporary construction according to the present invention will be described below with reference to the drawings. FIGS. 1 to 3 show a first embodiment, and as shown, a temporary construction scaffolding device 10 is a column or a column made of H-shaped steel or the like erected at a predetermined span on the ground such as a work site. It is suspended from a stake 11 and supported so as to be able to move up and down. That is, as shown in FIG. 2, a plurality of scaffolding base plates 12, 12 made of a pair of floor steel plates or the like separated by a predetermined distance S before and after a plurality of piles 11 therebetween.
The connecting frames 13 and 13 are applied to both ends thereof, and a safety fence 14 having a predetermined height is suspended from the outer peripheral edge of the scaffolding base plates 12 and 12 to form a gondola 15.

Four winches 16 are arranged and fixed on the upper surface of the approximately central portion of the gondola 15, and the winch drum 27 is wound with a rope 17 such as a wire rope. The winch 16 is driven by the electric motor 28 and the winch drum 2
7 is driven by a forward / reverse rotation through a speed reduction mechanism, and is provided with limit switches 29 and 30 for determining upper and lower limits of overwinding and an overspeed detector 31 as usual. A switchboard 32 for supplying power to the electric motor 28 is fixedly arranged on the scaffold base plate 12. The four ropes 17 wound around the winch drum 27 are respectively extended upward, and their ends are connected to the suspension supports 18 supported on the upper ends of at least two piles 11.

The suspension support 18 has a pair of substantially L-shaped stays 19 whose lower ends are bolted to the pile 11, and two sets of stays 19.
A supporting arm 21 connected to the upper end of the gondola 15 via a bracket 20 and having both ends protruding above the side of the gondola 15, and a connecting arm 22 connecting the central portions of the supporting arms 21 and 21; Two sets of support arms 21 and 21
The ends of the cords 17 are connected to brackets 23 fixed to both ends of the cable.

Therefore, when mounting the brace 25 and the cross rail 26 between the piles 11, an operator first gets on the ground with the gondola 15 placed on the ground, and the operator operates the four winches 16. Then, the gondola 15 is moved up to a required height, and necessary work is performed there.
The worker can freely and safely perform necessary work on the scaffolding base plates 12 and 12 in a wide space connecting the plurality of piles 11 and on both front and rear sides of the pile 11.

FIGS. 4 to 7 show a second embodiment of the present invention. In the drawings, the same parts as those in the first embodiment are denoted by the same reference numerals, and the duplicate description will be omitted. The feature lies in the structure of the suspension support 18. That is, as shown in FIG. 5, the connecting arm 2 connecting the supporting arms 21 and 21 is connected.
2, two of which are arranged on the lower surface side of the support arms 21 and 21, and the lower portions of the connection arms 22 and 22 are slidably engaged with the C-shaped channel rail 24. This rail 24 is, as shown in FIG.
9 is connected to a bracket 20 fixed at the upper end.

Therefore, according to the second embodiment, the position of the connecting arms 22, 22 with respect to the stay 19 can be changed as shown by the phantom line in FIG. The suspended gondola 15 can be moved together in the left-right direction, so that the span between the piles 11 can be changed.

FIGS. 8 to 10 show a third embodiment of the present invention. In the drawings, the same portions as those in the second embodiment are denoted by the same reference numerals, and a duplicate description will be omitted. Means that the gondola is arranged in two stages. That is, as shown in FIG. 10, a gondola 15a having substantially the same specifications as that of the gondola 15 is suspended below the gondola 15. In this case, the winch 16a for raising and lowering the gondola 15a is fixed to the lower surface of the gondola 15, and is not fixed to the gondola 15a. Therefore, the end of the cable 17 wound around the winch drum 27 is attached to the gondola 15.
a of the scaffold base plate 12.

Therefore, according to the third embodiment, the piles 1 and 2 are arranged by appropriately operating the gondola 15 and 15a arranged in two stages.
The work efficiency of the work of attaching the brace 25 and the horizontal rail 26 to the work 1 can be doubled, and the work time can be significantly reduced.

[0025]

As described above, according to the present invention,
The scaffold base plate that can work from both front and rear sides with multiple piles standing on the ground is supported by the pile etc. so that it can be lifted and lowered, so that crane trucks etc. are unnecessary for scaffolding work Needless to say, since it moves up and down with the pile etc. sandwiched, there is little swing with respect to wind pressure, etc., and by making the scaffold base plate an appropriate length, it is possible to secure space for many workers and equipment to be placed, Since the winch is arranged on the scaffold, the operator can arbitrarily raise and lower the gondola.

Moreover, since the scaffold base plate is provided so as to sandwich the pile, etc., it is possible to work safely on both the front and rear sides of the pile, etc., and the structure is such that the suspension support can be moved in the horizontal direction. Can quickly adapt to changes in span.

Further, the following operation and effect can be obtained. Since the stakes are suspended and supported by the temporarily constructed piles, there is no need to suspend the cranes as in the related art, and there is no need to restrain the cranes. The gondola itself can move up and down by itself by moving up and down with the winch. In addition, the worker on the gondola can move up and down by himself.
Therefore, there is no danger that the crane operator who cannot see the gondola operator can perform the lifting / lowering operation as in the case of being suspended by a conventional crane.

Further, work can be performed from both sides of the pile. Further, the load capacity of the gondola can be increased. In other words, conventionally, since it is hung on a crane, the space of the gondola that can be hung from the convenience of handling is limited, and the number of workers and the amount of equipment do not meet the demand, but according to the present invention. In this case, a sufficient load necessary for the work can be suspended. And since it is supported above all by the pile of the temporarily constructed structure, safety devices such as fence guards can be installed without affecting workability, and the safety is high. The gondola can be adjusted in accordance with the span of the pile for suspending and supporting the gondola, and the gondola can be expanded in the lateral direction. Further, by using a gondola having two vertically connected stages, it is possible to simultaneously perform the work of the upper and lower parts of the pile such as the work of connecting the upper and lower parts of the braces at the same time.

[Brief description of the drawings]

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

FIG. 2 is a plan view of FIG. 1;

FIG. 3 is a side view of FIG. 1;

FIG. 4 is a front view showing a second embodiment of the present invention.

FIG. 5 is a plan view of FIG. 4;

FIG. 6 is a side view of FIG. 4;

FIG. 7 is an enlarged front view of a main part of FIG. 4;

FIG. 8 is a front view showing a third embodiment of the present invention.

FIG. 9 is a plan view of FIG. 8;

FIG. 10 is a side view of FIG. 8;

FIG. 11 is an explanatory view of a conventional example.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 ... Scaffolding apparatus for temporary construction 11 ... Piles 12 ... Scaffolding base plate 13 ... Connection frame 14 ... Safety fence 15, 15a ... Gondola 16 ... Winch 17 ... Rope 18 ... Suspension support 19 ... Stay 20, 23 ... Bracket 21 ... Support arm 22 ... Connection arm 24 ... C type channel rail 25 ... Brace 26 ... Horizontal rail S ... Distance

Claims (7)

[Claims] 1. A pair of scaffold base plates having a predetermined length are arranged in parallel at a predetermined distance from each other, and both ends are connected, and a winch is fixed on the scaffold base plate. A gondola with a safety fence erected on the outer peripheral edge of the board, and fixed near the upper end of a work part such as a pile that is erected on the ground and inserted into the separated portion of the scaffold base plate, A scaffolding device for temporary construction, comprising: a suspension support for connecting a cable end extending from a winch. 2. A pair of scaffold base plates having a predetermined length are arranged in parallel at a predetermined distance from each other, and both ends are connected to each other, and a winch is fixed on the scaffold base plate. A gondola with a safety fence erected on the outer peripheral edge of the board, and fixed near the upper end of a working part such as a pile that is erected on the ground and inserted into the separated part of the scaffold base plate, A scaffolding device for temporary construction, comprising: a hanging portion which is movable in a direction and connects a cable end extending from the winch. 3. A pair of scaffold base plates having a predetermined length are arranged in parallel at a predetermined distance apart from each other, and both ends are connected, and a winch is fixed on the scaffold base plate. A first gondola with a safety fence erected on the outer peripheral edge of the board, and fixed near the upper end of a working part such as a pile that is erected on the ground and inserted into the separated part of the scaffold base plate A hanging support for connecting a cable end extending from the winch and a winch fixed to a lower surface of the gondola are arranged so as to be able to ascend and descend by a predetermined distance, and a pair of scaffold base plates having a predetermined length are separated by a predetermined distance. And a second gondola having a safety fence erected on the outer peripheral edge of the scaffold base plate, wherein the second gondola is arranged side by side and connected at both ends. 4. A pair of scaffold base plates having a predetermined length are arranged in parallel at a predetermined distance from each other, and both ends are connected, and a winch is fixed on the scaffold base plate. A first gondola with a safety fence erected on the outer peripheral edge of the board, and fixed near the upper end of a working part such as a pile that is erected on the ground and inserted into the separated part of the scaffold base plate A pair of a suspension support that is movable in the horizontal direction and connects a cable end extending from the winch, and a scaffold base plate having a predetermined length, which is disposed so as to be able to move up and down by a winch fixed to the lower surface of the gondola. Are arranged in parallel at a predetermined distance, and both ends are connected to each other, and a safety fence is erected on the outer peripheral edge of the scaffold base plate.
A scaffolding device for temporary construction, comprising a gondola. 5. A pair of stays having a lower end fixed vertically opposite to each other on both front and rear sides in the vicinity of an upper end of a work portion such as a pile, and a suspension support portion, the upper end of the stay being connected to a gondola. A connection is made between the support arm projecting over the side portion and the support arm fixed to a pair of stays whose lower ends are vertically fixed opposite to each other on the front and rear sides near the upper end of the work portion such as another pile. 5. The connecting arm according to claim 1, 2, 3, or 4.
The scaffolding device for temporary construction described. 6. A pair of stays, each of which includes a pair of stays having lower ends fixed vertically opposite to each other on both front and rear sides in the vicinity of an upper end of a work portion such as at least two piles. 5. The temporary installation according to claim 3, further comprising a connecting arm movably engaged with the upper end in a horizontal direction, and a supporting arm connecting the connecting arms and projecting on both sides of the gondola. Scaffolding equipment for construction. 7. A flat C-shaped channel rail having a slit on an upper surface is fixed to an upper end portion of a stay via a bracket, and a connecting arm made of H-section steel is inserted into the rail. Scaffolding equipment for temporary construction.