JP2022068727A - Scaffold device and operation method on roof - Google Patents

Abstract

To provide a scaffold device and an operation method on a roof allowing operation to be carried out safely and to be improved in spite of a simple structure upon the operation on the roof.SOLUTION: A scaffold device 10 comprises: a scaffold board 20 on which workers get on a roof, and protrusion parts 22 protruded from one (21s) of side surfaces in a longitudinal direction are formed; and a support rail 30 which is arranged in a girder direction of the roof and in which cut-off parts 32 into which the protrusion parts 22 are inserted, respectively, are formed with intervals aligned in the girder direction of the scaffold board 20 on a rail body 31 supporting the one (21s) of side surfaces of the scaffold board 20.SELECTED DRAWING: Figure 1

Description

The present invention relates to a scaffolding device installed on a roof and a work method on the roof when performing roof repair work, reinforcement work, cleaning work, and the like.

Work such as roof repair work, reinforcement work, and cleaning work performed by workers on a sloping roof is unstable. Therefore, the worker installs a scaffolding board, which is also called a road board, a tread board, or a walking board, on the roof and puts the scaffolding board on the scaffolding board to perform the work. In particular, when working on a slate roof that has deteriorated over time, if the scaffolding board is not used, the scaffolding board is indispensable for the work because there is a risk that the slate will crack due to the load of the worker and the worker will fall.

As such a scaffolding board, the one described in Patent Document 1 is known. The work trolley described in Patent Document 1 can be easily moved laterally to the roof by fixing a pair of frames used on the roof of a building with scaffolding plates and attaching rollers to both ends of each frame. It was.

Jikkai Sho 52-68630

The work trolley described in Patent Document 1 can work safely by moving the frame traversely. However, in the work cart described in Patent Document 1, rollers attached to both ends of the frame travel on a dedicated rail provided on the roof. Therefore, it is necessary to install a dedicated rail on the roof. Further, since the work trolley described in Patent Document 1 has a structure in which two pairs of frames are fixed by scaffolding plates, even if the roof has a short length in the inclined direction, two pieces 1 in addition to the scaffolding plate. It requires a pair of frames and is a large-scale device.

Therefore, an object of the present invention is to provide a scaffolding device and a work method on the roof that can safely and improve workability in spite of having a simple structure when working on the roof. do.

The scaffolding device of the present invention includes a scaffolding board for a worker to rest on the roof and a support rail that is hooked on a hook bolt along the girder direction of the roof and supports one side surface of the scaffolding board. It is characterized by that.

Further, the method of working on the roof of the present invention includes a step of hooking and arranging a support rail on a hook bolt along the girder direction of the roof and a scaffolding plate for a worker to be placed on the support rail on the roof. It is characterized by including a step of supporting one side surface and a step of performing a predetermined work on the roof while moving the scaffolding plate in the direction of the girder of the roof.

According to the present invention, since the operator can work while moving the scaffolding board in the girder direction along the support rail hooked on the hook bolt, the scaffolding board can be easily moved and safely placed on the scaffolding board. Moreover, it can be worked efficiently, and it can be manufactured at low cost with a simple structure.

The scaffolding plate is formed with protrusions protruding from one side surface along the length direction, and the notch in which the protrusions are inserted is formed in the support rail at intervals at which the scaffolding plates are lined up in the girder direction. It can be formed for each. By inserting a protrusion into the notch and supporting the scaffolding plate on the support rail, the scaffolding plate can be moved at predetermined intervals.

The support rail is arranged so as to overlap the first rail portion that supports the scaffolding plate in contact with the side surface and the top surface of the first rail portion so as to match the length direction, and the notch portion is formed. It can be provided with a second rail portion. By forming the notch in the second rail portion, it is not necessary to form the notch in the first rail portion, so that the second rail portion in which the rod-shaped member is formed has the notch. If the support rail on which the rail portion is mounted is used, the bending strength of the entire support rail can be improved.

The cutout portion may have one side wall on the working direction side formed on an inclined surface. If one side wall of the notch on the work direction side is formed on the inclined surface, the protrusion can be slid on the side wall formed on the inclined surface simply by pulling up the scaffolding plate to be moved and moving it in the work direction. However, it can be moved to the top of the support rail.

The protrusion and the notch may be formed at a position where a gap is formed between adjacent scaffolding plates installed on the roof. Since there is a gap between the scaffolding boards, when moving the scaffolding board on the back side in the work direction, you can put your hand in the gap and easily grab the end of the scaffolding board and lift it, so you can easily lift it on the back side. You can scaffold the scaffolding board.

According to the scaffolding device of the present invention, the scaffolding board can be easily moved, can be placed on the scaffolding board and worked safely and efficiently, and can be manufactured with a simple structure at low cost, so that it can be manufactured on the roof. In spite of its simple structure, it is possible to improve workability safely and workability.

According to the present invention, since the worker can efficiently move the scaffolding board in a stable state without wobbling, it is possible to safely and improve workability when working on the roof. ..

It is a figure which shows the scaffolding apparatus which concerns on embodiment of this invention, (A) is the perspective view which shows the scaffolding plate of the scaffolding apparatus, (B) is the perspective view which shows the support rail of the scaffolding apparatus. It is a figure which shows the scaffolding apparatus shown in FIG. 1, (A) is a view seen from the scaffolding board side, (B) is a figure seen from above. It is a figure for demonstrating the state which the scaffolding apparatus shown in FIG. 1 is installed on the inclined slate roof. It is a figure for demonstrating the use state of the scaffolding apparatus shown in FIG. It is a figure for demonstrating to move.

The scaffolding device according to the embodiment of the present invention will be described with reference to the drawings. In this specification, the scaffolding board arrangement direction will be described with the working direction as the front and the opposite direction as the rear.
As shown in FIGS. 1 (A) and 1 (B) and FIGS. 2 (A) and (B), the scaffolding device 10 has a wavy roof in which valley portions R1 and mountain portions R2 are alternately continuous. The slate roof R, which is an example, is used for repair work, reinforcement work, cleaning work, and the like. In the present embodiment, the slate roof R is formed by slate rogue waves having a mountain pitch of 130 mm.
The scaffolding device 10 includes a scaffolding plate 20 and a support rail 30.

The scaffolding plate 20 shown in FIG. 1A is formed in the shape of a long rectangular plate, and is inserted into a plate body 21 for an operator to work on and a support rail 30 (see FIG. 1B). It is provided with a protrusion 22 to be formed.
The plate body 21 is formed of a perforated aluminum plate material for weight reduction, and the peripheral edge portion is bent for reinforcement. In the present embodiment, the plate body 21 has, for example, a width of about 24 cm. The length L1 (see FIG. 2A) can be about 150 cm.

The protrusion 22 protrudes from one side surface 21s along the length direction F1 of the plate body 21. For example, the protrusion 22 may have a bolt 22a that penetrates the side surface 21s of the plate body 21 from the inside to the outside and is fixed by a nut 22b.
The protrusions 22 are provided at positions 100 mm from both ends in the length direction F1 (positions of length L2 (see FIG. 2B) from the ends of the plate body 21). The protrusion 22 protrudes from a position higher than the height of the first rail, which will be described later.

In the support rail 30 shown in FIG. 1 (B), a cutout portion 32 into which a protrusion 22 (see FIG. 1 (A)) is inserted from the top surface 31t side into a rail main body 31 formed of a rod-shaped member works. The scaffolding plates 20 are formed at intervals along the girder direction F2 (see FIG. 4), which is the direction.
The rail body 31 is arranged so as to overlap the first rail portion 31a that supports the scaffolding plate 20 in contact with the side surface 21s (see FIG. 1) and the top surface of the first rail portion 31a in the length direction F3. , The second rail portion 31b in which the notch portion 32 is formed is adhesively fixed and formed.

The rail body 31 can be formed of an aluminum square bar-shaped member. For example, the first rail portion 31a can have a width of 30 mm, a height of 20 mm, and a thickness of 2 mm. The second rail portion 31b can have a width of 12 mm, a height of 12 mm, and a thickness of 1.2 mm.

Here, the notch portion 32 will be described in detail.
The notch portion 32 is formed by cutting the second rail portion 31b.
One side wall 32a on the working direction F4 side of the cutout portion 32 is formed on an inclined surface. Further, the other side wall 32b on the opposite side of the working direction F4 is formed on a vertical surface.
In the notch portion 32, for example, as shown in FIGS. 2A and 2B, the distance L3 between the notch portions 32 into which the protrusions 22 of the two adjacent scaffolding plates 20 fit is set to 260 mm. It is formed. Further, the distance L4 between the cutout portions 32 into which the protrusions 22 of one scaffolding plate 20 fit can be set to 130 cm. By arranging the notch portion 32 in this way, a gap L5 of 60 mm is opened between the adjacent scaffolding plates 20.

The usage state (working method on the roof) of the scaffolding device 10 according to the embodiment of the present invention formed as described above will be described with reference to the drawings.
First, as shown in FIGS. 3 and 4, the support rail 30 is hooked and supported on the ridge side of the hook bolt B arranged in the girder direction F2 orthogonal to the inclination direction F5 of the slate roof R.
Then, two scaffolding plates 20 (20X, 20Y) are prepared, and the protruding portion 22 of the scaffolding plate 20 is formed from the upper side of the tilting direction F5 of the support rail 30 with the notched portion 32 of the support rail 30 (FIG. 1 (B). ), And the two scaffolding plates 20X and 20Y are supported side by side along the support rail 30.

If the scaffolding device 10 can be arranged in this way, the operator rests on the scaffolding plates 20X and 20Y to repair, reinforce, or clean the slate roof R.
When the work within the range that the worker can put on the scaffolding plates 20X and 20Y is completed, the scaffolding plate 20X on the rear side in the working direction F4 is moved to the front of the scaffolding plate 20Y in the working direction F4.

At this time, the worker stands on the rear side portion of the scaffolding plate 20Y in the working direction F4, holds the front side of the scaffolding plate 20X in the working direction F4, and pulls up diagonally. Since one side wall 32a (see FIG. 1 (B)) on the work direction F4 side of the cutout portion 32 is formed on the inclined surface, the scaffolding plate 20X can be moved diagonally to the work direction F4 by simply pulling it diagonally. The protrusion 22 on the rear side of the scaffolding plate 20X can be pulled out from the notch 32 while sliding on the side wall 32a formed on the inclined surface.

Therefore, when moving the long scaffolding board 20X from the notch 32 on the rear side of the scaffolding board 20X, which is a distance from the scaffolding board 20Y, even if it is difficult to reach, it is pulled up while being supported by the side wall 32a due to the inclined surface. , Can be moved.

Next, as shown in FIG. 4, the worker holds the scaffolding plate 20X and moves to the front side portion of the scaffolding plate 20Y in the working direction.
At this time, the scaffolding plate 20X is moved while sliding the end portion of the scaffolding plate 20X in the length direction F1 on the top surface 31t of the support rail 30 (the top surface of the second support rail portion 31b). By doing so, when moving the long scaffolding board 20X to the notch 32 of the next insertion destination which is a distance from the front side of the scaffolding board 20Y, even if it is difficult to reach, it moves while being supported by the support rail 30. Can be made to. Therefore, the scaffolding plate 20X can be easily and stably moved.

By moving the scaffolding plate 20X forward from the scaffolding plate 20Y in the working direction F4, the next work range can be worked.
When the work in the next work range is completed, the worker moves the scaffolding plate 20Y to the tip of the scaffolding plate 20X.

The protrusion 22 of the scaffolding plate 20 and the notch 32 of the support rail 30 are formed at intervals that form a gap L5 (see FIG. 2A) between the adjacent scaffolding plate 20X and the scaffolding plate 20Y. ..
Therefore, by putting a hand in the gap L5 between the scaffolding plate 20X and the scaffolding plate 20Y, the end portion of the scaffolding plate 20Y can be easily grasped and lifted, so that the scaffolding plate 20Y can be easily moved. ..

As described above, the operator can safely move the scaffolding plate 20 laterally by sequentially moving the scaffolding plate 20 along the support rail 30 in the working direction F4, and the scaffolding plate 20 can be safely placed on the scaffolding plate 20. You can work efficiently and efficiently. Further, since the scaffolding device 10 has a structure in which the protrusion 22 is inserted into the notch 32 to support the scaffolding plate 20 on the support rail 30, it can be manufactured with a simple structure at low cost.
Therefore, the scaffolding device 10 can be safely and improved in workability when working on the roof, although it has a simple structure.
Further, conventionally, the scaffolding plates are simply arranged along the girder direction and the work is performed by two or three people, but with the scaffolding device 10, the work can be performed by one person.

In the present embodiment, two scaffolding boards 20X and 20Y are worked side by side, but the number of scaffolding boards may be two or more.
Further, when the length of the support rail 30 is shorter than the length of the girder direction F2 of the slate roof, when the scaffolding plate 20 is moved to the end of the support rail 30, the support rail 30 is moved along the work direction. By doing so, the work can be continued. Further, by preparing a plurality of support rails 30, it is possible to arrange the support rails 30 in advance in the working direction F4 (girder direction F2).

In the present embodiment, the support rail 30 is formed with the notch portion 32, but the notch portion 32 may not be formed. One support rail is placed on the ridge side of the hook bolt and hooked, and while the support rail supports the side surface of the scaffolding plate, the scaffolding plate without protrusions is simply moved in the girder direction in the girder direction. Work can be done easily.

Further, in the present embodiment, as shown in FIG. 3, the protrusion 22 is formed by a bolt 22a penetrating the side surface 21s of the plate body 21 and a nut 22b. Therefore, when the protrusion 22 is inserted into the notch 32 and the scaffolding plate 20 is arranged on the support rail 30, a gap for positioning the nut 22b between the plate body 21 and the second rail portion 31b. It is necessary to secure S.
Therefore, by stacking the first rail portion 31a and the second rail portion 31b having a width narrower than that of the first rail portion 31a to form the support rail 30, a step between the first rail portion 31a and the second rail portion 31b is created. It is formed. This step secures a gap for the nut 22b.

However, if the protrusion is formed by welding a rod-shaped member or integrally formed with the side surface 21s, a gap is not required between the plate body 21 and the support rail, so that one support rail is used. It can be formed by the rod-shaped member of.

On the other hand, if the notch portion 32 is formed in one support rail, the bending strength of the support rail is lowered. Therefore, by forming the notch portion 32 in the second rail portion 31b, it is not necessary to form the notch portion in the first rail portion 31a. Therefore, the notch portion is formed in the first rail portion 31a by the rod-shaped member. By using the support rail 30 on which the second rail portion 31b on which the 32 is formed is placed, the bending strength of the entire support rail 30 can be improved.

Further, when the work is performed, if the work width is insufficient only by the width of the scaffolding board 20, aluminum or wooden scaffolding boards are arranged side by side on the upper side of the scaffolding board 20 in the inclined direction F5 (see FIG. 3). It is possible to do.

Further, the dimensions of the scaffolding plate 20 and the support rail 30 are set for large waves. Therefore, each dimension can be set according to the type of slate roof.
Further, although the slate roof R is a sloping roof, it may be a flat roof that is not sloping. Further, the wavy roof may be a slate roof, a resin plate such as vinyl chloride or polycarbonate, or a metal plate such as galvanized iron or galvalume.

The present invention is suitable for roof repair work, reinforcement work, cleaning work, and the like. In particular, the scaffolding device of the present invention is most suitable for work on a slate roof that has become brittle due to aging.

10 Scaffolding device 20, 20X, 20Y Scaffolding plate 21 Plate body 21s Side surface 22 Protrusion 22a Bolt 22b Nut 30 Support rail 31 Rail body 31a First rail part 31b Second rail part 31t Top surface 32 Notch part 32a, 32b Side wall R Slate roof R1 Tanibe R2 Yamabe B Hook bolt B1, B2 Scaffolding board L1, L2 Length L3, L4 Spacing L5 Gap F1, F3 Length direction F2 Girder direction F4 Working direction F5 Inclined direction

Claims (6)

A scaffolding board for workers to rest on the roof,
A scaffolding device provided with a support rail that is hooked on a hook bolt along the girder direction of the roof and supports one side surface of the scaffolding plate. The scaffolding plate is formed with protrusions protruding from one side surface along the length direction.
The scaffolding device according to claim 1, wherein a notch portion into which the protrusion is inserted is formed in the support rail at intervals at which the scaffolding plates are arranged in the girder direction. The support rail is arranged so as to overlap the first rail portion that supports the scaffolding plate in contact with the side surface and the top surface of the first rail portion so as to match the length direction, and the notch portion is formed. The scaffolding device according to claim 2, further comprising a second rail portion. The scaffolding device according to claim 2 or 3, wherein the cutout portion has one side wall on the working direction side formed on an inclined surface. The scaffolding device according to any one of claims 2 to 4, wherein the protrusion and the notch are formed at a position where a gap is formed between adjacent scaffolding plates installed on the roof. Steps to hook and place support rails on hook bolts along the girder direction of the roof,
A step of supporting one side of the scaffolding board on the roof on the support rail,
A work method on a roof including a step of performing a predetermined work on the roof while moving the scaffolding board in the direction of the girder of the roof.

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